Stop tracking working_files/player_auth.json

This file was still tracked after the previous commit: it is listed in
.gitignore, and git add skips ignored paths, so `git add -A <path>` silently did
nothing for it. Removing it from the index requires `git rm --cached`.

It contains a live auth_code, player_id and server_url for a different player
("tv-terasa" / TV-acasa 1), so it must not be in the repository. The file is
kept on disk; only the tracking is removed.

The two other credential files (player_auth.json, src/player_auth.json) were
already untracked.

Note for anyone repeating this: these files are gitignored, so `git add` will
never stage their removal. Use `git rm --cached <path>`, and verify with
`git ls-files | findstr player_auth` that nothing remains.

.github/instructions/kiwy-build-and-development.instructions.md

@@ -0,0 +1,273 @@
+---
+description: "Use when building, compiling, packaging or releasing the Kiwy Signage Player: PyInstaller build, .exe generation, build.spec, hiddenimports, code signing, Smart App Control, Windows development, Raspberry Pi deployment, or adding new modules under src/. Covers the exact build commands, environment constraints, bundling rules and verification steps."
+name: "Kiwy Build & Development"
+---
+
+# Kiwy Signage Player — Build & Development
+
+Cross-platform Kivy digital signage player.
+
+- **Raspberry Pi / Linux** — `src/main.py` is the entry point (root `install.sh`, `start.sh`).
+- **Windows** — `windows/run_win.py` is the entry point; it sets Windows env vars, imports
+  `main.py`, then monkey-patches platform differences. Packaged to `.exe` with PyInstaller.
+
+## Ground Rules
+
+- **Keep `src/main.py` cross-platform.** Windows-specific behaviour belongs in
+  `windows/run_win.py` (see `_patch_main()`), Pi-specific behaviour in `main.py` guarded
+  by capability checks. Do not add Windows-only imports to `main.py`.
+- **Rebuild is mandatory.** The `.exe` bundles `src/`, so Python edits are invisible until
+  you rebuild. There is no hot reload in the packaged app.
+- **`dist/` is a runtime folder, not just build output.** It holds `config/`, `media/`,
+  `playlists/`, `logs/`, `.kiosk-profile/` and `.player_heartbeat`. Never wipe `dist/`
+  blindly; a `--clean` rebuild preserves it, but a manual delete destroys player state.
+
+## Environment
+
+| Item | Value |
+|------|-------|
+| Interpreter | **Python 3.12.9** (64-bit) — project venv at `windows\venv` |
+| Kivy | 2.3.1 |
+| PyInstaller | 6.21.0 |
+| Linux target | Python 3.13 (`repo/python-wheels/`, `repo/system-packages/`) |
+
+- **Python 3.13+/3.14 is NOT supported for the Windows build** — Kivy 2.3.1 has no wheels
+  for them.
+- `cefpython3` is **not installed** in the project venv (its wheels stop at Python 3.9).
+  The embedded-CEF engine in `windows/cef_browser.py` is therefore dormant on this
+  build — do not rely on it.
+- **Web links use embedded WebView2** (`windows/webview2_browser.py`), driven through
+  `pythonnet` (installed). Two extra things ship with the exe:
+  - `windows/webview2_sdk/` — ~860 KB of SDK DLLs (`Microsoft.Web.WebView2.Core.dll`,
+    `WebView2Loader.dll`). **Tracked in git on purpose**: without them WebView2
+    silently downgrades to the Chrome/Edge subprocess engine.
+  - `windows/webview2_runtime/MicrosoftEdgeWebview2Setup.exe` — ~1.7 MB bootstrapper,
+    used to install the Runtime on a machine that lacks it. The ~203 MB offline
+    standalone installer is **git-ignored**; fetch it with
+    `windows/webview2_runtime/download_runtime_installers.ps1 -Offline` when you need
+    to deploy to machines with no internet (it makes the exe ~305 MB).
+
+## Build
+
+From `windows\`:
+
+```
+venv\Scripts\python.exe -m PyInstaller build.spec --clean --noconfirm
+```
+
+Or the full one-click path (creates venv, installs deps, builds, then signs):
+
+```
+build_win.bat
+```
+
+Output (folder mode, via `COLLECT`):
+
+```
+windows\dist\KiwySignagePlayer\KiwySignagePlayer.exe   <- the real build output
+```
+
+**Deployment hazard:** `windows\dist\KiwySignagePlayer.exe` (one level up) is a stale
+leftover from an older single-file build of the same name. It is not refreshed by the
+current spec, so deploying it ships old code. Always take the executable from the
+`KiwySignagePlayer\` subfolder, and delete the stray copy if it reappears.
+
+### `build.spec` facts
+
+- Entry point `run_win.py`; `pathex=[BUILD_DIR, SRC_DIR]` so `src/` modules resolve.
+- `runtime_hooks=[pyi_runtime_hook.py]` — sets per-monitor DPI awareness **before** SDL/Kivy
+  initialise. Keep DPI work here; it must run before any window is created.
+- `datas += Tree(src)` bundles all of `src/`. `console=True` so startup errors and the Kivy
+  log remain visible — do not flip this to `False` without a reason.
+- `hiddenimports` must list modules that PyInstaller's static analysis **cannot** see:
+  lazily imported ones (`cef_browser` is imported inside a function) or dynamic imports
+  (`getattr`, `importlib`). Top-level imports such as `weblink_session` are found
+  automatically via `pathex`, but listing them is harmless insurance.
+  **When you add a module under `src/` that is imported lazily or by string, add it to
+  `hiddenimports` or the packaged exe will fail at runtime with `ModuleNotFoundError`.**
+- `excluded_imports` drops Linux-only packages (`evdev`, `gi`, GStreamer) and the
+  non-matching `cefpython3` `.pyd` variants.
+
+## First-run setup (no bundled credentials)
+
+`config/app_config.json` is **deliberately NOT bundled** into the exe, and
+`player_auth.json` is excluded from `Tree(src)`. Shipping either one planted the
+build machine's `server_ip` / `screen_name` / `auth_code` into every install, so
+a fresh machine silently connected to the wrong server (or played a stale
+playlist) instead of asking.
+
+What happens on a machine with no usable config:
+
+1. The splash video (`config/resources/intro1.mp4`) plays.
+2. A notice appears: *"Player is not configured"*.
+3. After `SETUP_NOTICE_SECONDS` (**5 s**, `src/main.py`) the Settings screen
+   opens automatically.
+4. Saving valid values writes `config/app_config.json` next to the **.exe** and
+   playback starts immediately — no restart needed.
+
+On a machine that **is** configured, the notice and Settings are skipped and the
+cached playlist plays straight away.
+
+Key functions in `src/main.py`:
+
+| Name | Role |
+|------|------|
+| `config_is_configured(config)` | Single source of truth. Missing file, empty/unparseable JSON, missing keys and leftover placeholders (`localhost`, `kivy-player`, `1234567`, `127.0.0.1`) all count as **unconfigured**. |
+| `DEFAULT_CONFIG` | Blank-credential starting point, so a fresh install can never look configured. |
+| `SignagePlayer.on_intro_finished()` | The one decision point after the splash: setup vs. playback. Both intro paths (video end and "no intro file") go through it. |
+| `show_setup_required_notice()` | Shows the notice, then opens Settings after 5 s. |
+| `on_first_run_config_saved()` | Re-syncs and starts playback. |
+
+`config_is_configured()` is covered by `windows/test_first_run_setup.py` — run it
+after touching that logic.
+
+> When adding a new **required** config key, add it to `CONFIG_REQUIRED_KEYS`
+> (and to `CONFIG_PLACEHOLDER_VALUES` if it has a placeholder default), or the
+> first-run flow will not ask for it.
+
+## 24/7 Supervision (Windows)
+
+A signage player must survive crashes and hangs unattended. On **Linux/Pi** this is
+`start.sh` (systemd or `./start.sh`). On **Windows** it is `windows/watchdog.ps1`,
+launched by `windows/start_player_watchdog.bat`.
+
+It restarts the player when it:
+
+- **crashed** — the process disappeared; or
+- **hung** — the process is alive but `.player_heartbeat` has gone stale
+  (the player rewrites it every 10 s; the watchdog treats >60 s as hung). A frozen
+  player is otherwise indistinguishable from a working one.
+
+It also backs off if the player cannot stay up (crash-loop breaker:
+`CrashLoopMaxFailures` failures in `CrashLoopWindowMin` minutes without ever
+becoming healthy → `CrashLoopBackoffMin` minutes of quiet).
+
+### The stop flag is SESSION-SCOPED
+
+The only supported way to stop the player is the **exit-screen password**. On
+success the player writes `.player_stop_requested` next to its `.exe`, and the
+watchdog then **stands down instead of restarting**.
+
+The flag is cleared **every time the watchdog starts**, which is what makes it
+session-scoped: the password exit ends the *current* session, and the next launch
+begins a new one. There is no file to delete by hand.
+
+> **Ordering matters:** the flag is the operationally-correct choice over a
+> "remember the last exit" setting, because a reboot must come back up playing.
+> Clearing on start also means a power cut cannot leave the player permanently off.
+
+### Two failure modes that must not be confused
+
+| Situation | Correct reaction |
+|---|---|
+| Was healthy, then heartbeat went stale | **Restart promptly** (this is a hang) |
+| Running but never became healthy (slow start, bad install, the **first-run setup screen**) | **Be patient**, then restart after `2 × StartupGraceSec` |
+
+Never kill a player that has not yet been healthy — it may be an operator entering
+server settings on the first-run setup screen.
+
+### Important Windows-specific facts
+
+- The packaged player is **TWO processes** (PyInstaller bootloader parent + the
+  child that owns the SDL window). Any kill must use `taskkill /T` or the visible
+  window survives and the next launch collides with it.
+- The watchdog can only *restart* an install that already has a working config.
+  It cannot help before the player has first run.
+- Hiding the console window (`console=False`) is **not** done: the console is the
+  only way to see a start-up failure, and the build instructions warn against
+  flipping it without reason.
+- **No Windows service.** A service runs in session 0 with no desktop, so the
+  player could not render to the screen. A login-triggered task is the correct
+  Windows counterpart to the Pi's systemd unit — that is what
+  `start_player_watchdog.bat` is for (add it to the Startup folder for autostart).
+
+### Verify the watchdog
+
+```
+cd windows
+venv\Scripts\python.exe test_watchdog.py     # crash + hang + stop-flag + new-session
+```
+
+Check state at any time (read-only):
+
+```
+powershell -NoProfile -ExecutionPolicy Bypass -File windows\watchdog.ps1 -Status
+```
+
+> When testing a hang, do **not** just backdate the heartbeat file's mtime — the
+> healthy player rewrites it immediately, so nothing is actually stale and the
+> test passes for the wrong reason. Hold the file open with an exclusive Windows
+> lock (share mode 0) so the player's own write fails; that reproduces a genuine
+> stale heartbeat while the process stays alive.
+
+## Code Signing (production constraint)
+
+Production PCs run with **Smart App Control enforced** (`VerifiedAndReputablePolicyState=1`,
+UMCI enforced) with **no "Run anyway" bypass** — an unsigned exe is blocked at kernel level.
+
+- A **self-signed certificate does NOT satisfy Smart App Control.** A cert from a reputable
+  public CA is required. `create_self_signed_cert.ps1` is dev-only.
+- Provide a cert as `KIWY_SIGN_PFX` (+ optional `KIWY_SIGN_PFX_PASSWORD`) or drop
+  `kiwy_signing.pfx` in `windows\`; `build_win.bat` then signs via `sign_exe.ps1`
+  (signtool with RFC3161 timestamp when available).
+- See `documentation/CODE_SIGNING_SMART_APP_CONTROL.md`.
+
+## Verify Before Committing
+
+Fast syntax gate (no build, seconds):
+
+```
+python -m py_compile src/main.py src/weblink_session.py windows/run_win.py windows/webview2_browser.py windows/webview2_runtime.py
+```
+
+Web-link engine checks (no build, no player):
+
+```
+cd windows
+venv\Scripts\python.exe test_webview2_embed.py      # embeds WebView2 in a bare Win32 window
+venv\Scripts\python.exe test_webview2_runtime.py    # Runtime detection + installer discovery
+```
+
+Rebuild warning: the bundled offline installer makes the exe ~305 MB. If you do not
+need offline machines, delete
+`windows/webview2_runtime/MicrosoftEdgeWebView2RuntimeInstallerX64.exe` before building.
+
+**Close the running player before rebuilding.** A running
+`dist\KiwySignagePlayer\KiwySignagePlayer.exe` locks the output and the build fails with
+"Access is denied". Chrome/Edge kiosk processes left over from web-link playback can also
+hold locks; if the build fails, check for stray `msedge.exe` / `chrome.exe` before retrying.
+
+Because `.exe` is a **reserved Windows device name** as well as a real file, use
+`Test-Path -LiteralPath` when probing for the executable, otherwise the path silently
+resolves to the console device.
+
+Development run — **use this on a SAC-locked host**, since the unsigned exe cannot launch:
+
+```
+cd windows
+venv\Scripts\activate
+python run_win.py
+```
+
+Diagnose playback transitions via the trace log (`logs\playback_trace.log`), written by
+`src/playback_trace.py`.
+
+## Release Checklist
+
+1. Bump `PLAYER_VERSION` in `src/main.py` **and** `filevers`/`prodvers`/`FileVersion`/
+   `ProductVersion` in `windows\version_info.txt`; keep them in sync.
+2. Rebuild (`build_win.bat`).
+3. Confirm the exe is signed (`Get-AuthenticodeSignature`); unsigned builds are blocked on
+   production hosts.
+4. Smoke-test a mixed playlist: image → video → weblink → image, verifying durations, audio
+   (`audio: off` / `muted`), and a clean exit/restart.
+
+## Commit Hygiene
+
+- Never commit `windows\build\` or `windows\dist\` (git-ignored). Tracked build output such
+  as `windows\archive_list.txt` and `windows\build_last.txt` is the exception, not the rule.
+- **Do not commit `player_auth.json` or `src/player_auth.json`** — they contain live
+  credentials (`auth_code`, `player_id`, `server_url`). These are currently tracked; treat any
+  future change to them as a deliberate, reviewed decision.
+- Do not commit `config\app_config.json` values that are host-specific without checking
+  whether they belong in the repo default.

.gitignore

@@ -25,6 +25,7 @@ wheels/
 venv/
 ENV/
 env/
+windows/venv312/
 
 # Kivy
 *.pyc
@@ -59,3 +60,42 @@ playlists/server_playlist_*.json
 Thumbs.db
 
 .player_heartbear
+
+# NOTE: the line above is a long-standing typo for `.player_heartbeat` and is
+# kept only so nothing changes for existing clones. The correct patterns are
+# below — without them the player's runtime state files get committed (they
+# change every 10 seconds, which would create endless noise and merge conflicts).
+.player_heartbeat
+.player_stop_requested
+logs/startup_marker.txt
+logs/startup_crash.log
+logs/console_out.txt
+logs/console_err.txt
+logs/watchdog_test_*.txt
+logs/.webview2_install_attempt
+
+windows/venv_build/
+
+# Player credentials — live auth_code/player_id/server_url. Never commit these:
+# a bundled copy made fresh builds boot "already authenticated" against an old
+# server and play a stale playlist.
+player_auth.json
+src/player_auth.json
+working_files/player_auth.json
+windows/dist/*/player_auth.json
+
+# Runtime web-engine profiles (browser cache, not source)
+.kiosk-profile/
+.webview2-profile/
+
+# NOTE: windows/webview2_sdk/ IS tracked on purpose — build.spec bundles those
+# DLLs, so a fresh clone must have them or web links silently fall back to the
+# Chrome/Edge subprocess engine. Only ~860 KB (2 files).
+
+# The small WebView2 Runtime bootstrapper (~1.7 MB) IS tracked: build.spec
+# bundles it so a machine without the Runtime can install it on first start.
+# The ~203 MB offline standalone installer is NOT tracked — fetch it with
+# windows/webview2_runtime/download_runtime_installers.ps1 when you need to
+# build for machines that have no internet.
+windows/webview2_runtime/MicrosoftEdgeWebView2RuntimeInstaller*.exe
+!windows/webview2_runtime/MicrosoftEdgeWebview2Setup.exe

PLAYER_WEBLINK_INTEGRATION.md

@@ -1,21 +1,23 @@
 # Web Link Playlist Items — Player Integration Guide
 
-This document describes the changes required on the **Kiwy-Signage player**
+This document describes how the **Kiwy-Signage player**
-(<https://gitea.moto-adv.com/ske087/Kiwy-Signage.git>) to support a new
+(<https://gitea.moto-adv.com/ske087/Kiwy-Signage.git>) supports the **`weblink`**
-playlist item type: **`weblink`** (display a live web page / URL instead of an
+playlist item type (display a live web page / URL instead of an uploaded media
-uploaded media file).
+file).
 
-> The DigiServer (this repo, `digiserver-v2`) side will be updated to emit
+> **Status: implemented.** The player supports `weblink` items on both
-> `weblink` items in the playlist API. The player does **not** yet support them.
+> Raspberry Pi (`chromium` subprocess) and Windows (embedded **WebView2**, with
-> Use this guide to implement the player side later.
+> the CEF and Chrome/Edge subprocess engines as fallbacks). Sections 1–4
+> describe the original design plan; section 6 documents the shipped
+> architecture and the interaction model.
 
 ---
 
-## 1. Background — how items flow today
+## 1. Background — how items flow
 
 ```
 DigiServer API  ──JSON──▶  player sync (get_playlists_v2.py)  ──▶  playlist.json  ──▶  main.py renders
-   /api/playlists           downloads files to media/                                  by file extension
+   /api/playlists           downloads files to media/                                  by item type
 ```
 
 Each playlist item the server returns currently looks like:
@@ -243,3 +245,136 @@ Recommended options, in order of robustness:
   depth).
 - Consider running Chromium with `--incognito` (no persistent cookies/cache) as
   shown above.
+
+---
+
+## 6. Shipped architecture (`src/weblink_session.py`)
+
+The player-side implementation lives in **one** module, so launch, verification,
+timing and teardown have a single owner instead of being duplicated per
+platform:
+
+| Piece                    | Responsibility |
+|--------------------------|----------------|
+| `WeblinkSession`         | Owns one weblink item: validate → launch → verify → watch → teardown. Generation-tokened so stale callbacks are ignored, and `atexit`-safe. |
+| `WeblinkAdapter`         | The only platform-specific part: launch / wait for the window / is it alive / tear it down / pre-warm. `extra_launch_args()` lets a subclass add browser flags without copying `launch()`. |
+| `ChromiumSubprocessAdapter` | Default engine (Raspberry Pi `chromium`; on Windows the Chrome/Edge fallback). |
+| `InteractionWatcher`     | Decides when the item is finished (see the interaction model below). |
+| `WebInputSources`        | Reads `/dev/input/event*` (Linux) and does a pointer-position tap (Windows, needed for embedded engines). |
+| `webview2_browser.py`    | **Windows, preferred**: embeds WebView2 as a child HWND of the Kivy window. |
+| `webview2_runtime.py`    | **Windows**: detects the WebView2 Runtime and installs it silently when missing. |
+
+Platform wrappers inject their engines through
+`SignagePlayer.weblink_adapter_factory`:
+
+* **Raspberry Pi / Linux** — built-in Chromium subprocess adapter.
+* **Windows** (`windows/run_win.py`) — engines are tried in this order:
+
+  | Order | Engine | Renders | Notes |
+  |-------|--------|---------|-------|
+  | 1 | **WebView2** (`webview2_browser.py`) | child window **inside** Kivy | Preferred. No subprocess, so no background/z-order/hand-off/leak problems. |
+  | 2 | CEF (`cef_browser.py`) | child window inside Kivy | Dormant: `cefpython3` has no wheels past Python 3.9. |
+  | 3 | Chrome/Edge subprocess | separate window | Last resort only; retains the old drawbacks. |
+
+`WeblinkAdapter.extra_launch_args()` is the hook subclasses use to add flags
+without duplicating `launch()` — the Chrome adapter uses it for
+`--user-data-dir` + `--kiosk`.
+
+> **Do not give the factory a class-level `None` default combined with an
+> unconditional instance assignment.** `SignagePlayer.__init__` originally set
+> `self.weblink_adapter_factory = None`, which shadowed the class attribute the
+> Windows wrapper installs — so the platform adapters were silently ignored and
+> every weblink fell back to the generic adapter and failed. It now only sets
+> the instance attribute when the class attribute is absent.
+
+### 6.2 Windows: WebView2 Runtime
+
+WebView2 is two separate things, and they ship differently:
+
+* the **SDK** (`Microsoft.Web.WebView2.Core.dll`, `WebView2Loader.dll`) — the
+  API surface, bundled in the exe from `windows\webview2_sdk\` (~860 KB);
+* the **Runtime** (`msedgewebview2.exe`) — the actual Chromium engine, shipped
+  by Microsoft and **verified/installed at start-up** by
+  `windows\webview2_runtime.py`.
+
+If the Runtime is absent the player runs an installer silently
+(`/silent /install`) and **unelevated**, which produces a *per-user* install and
+therefore never raises a UAC prompt on the signage display. A ~1.7 MB online
+bootstrapper is bundled by default; a ~203 MB offline standalone installer can
+be bundled instead (see `windows\webview2_runtime\download_runtime_installers.ps1`)
+for machines with no internet.
+
+Install success is decided by **re-reading the installed version**, not by the
+installer exit code — Edge Update returns a non-zero HRESULT (e.g.
+`-2147219416`) when the Runtime is already current, which is not a failure.
+
+### 6.1 Interaction model — web links are not passive media
+
+`duration` on a weblink is **not** a hard cut-off. The player advances only when
+**both** conditions are true:
+
+1. the configured `duration` has elapsed; **and**
+2. the viewer has not interacted with the page for `interaction_postpone`
+   seconds (default **10 s**), measured from the **most recent** interaction.
+
+Consequences:
+
+- A viewer who taps, scrolls or navigates the page during the final seconds of
+  the slot **keeps the page on screen** — the advance is pushed 10 s past that
+  touch, and every further touch pushes it again. The link is never pulled out
+  from under someone who is using it.
+- An untouched page still advances on schedule, exactly like a media item.
+- A multi-event burst (a drag, a page transition) counts as **one** interaction
+  but the countdown is measured from the **last** event of that burst, so an
+  item can never be cut off mid-gesture.
+- `max_dwell` (duration × `max_dwell_factor`, at least `min_max_dwell`) is an
+  absolute backstop so a wedged browser or a jammed touchscreen cannot park the
+  playlist forever.
+
+**Pause/play does not apply to web links.** A web link is an interactive
+surface, so `toggle_pause()` is a no-op while one is on screen — the interaction
+watcher owns its lifecycle. The pause button continues to work normally for
+images and videos.
+
+### 6.2 Verified start-up
+
+Launching a browser is not the same as displaying a page. The session therefore
+does **not** report success immediately after spawning the process (that used to
+reset the error counter and leave a black screen for the whole duration). The
+watcher thread — never the Kivy main thread — waits for the browser window to
+appear, and if it never does the item is reported as failed and skipped.
+
+### 6.3 Configuration
+
+All timings are tunable in `config/app_config.json` under `weblink`:
+
+```json
+"weblink": {
+  "engine": "auto",
+  "interaction_postpone": 10,
+  "interaction_debounce": 0.5,
+  "interaction_grace": 5.0,
+  "max_dwell_factor": 6.0,
+  "min_max_dwell": 300,
+  "launch_timeout": 15,
+  "prewarm": true
+}
+```
+
+| Key | Meaning |
+|-----|---------|
+| `engine`                 | Preferred engine (`auto`, `cef`, `subprocess`). |
+| `interaction_postpone`   | Seconds the advance is postponed, measured from each interaction (default 10). |
+| `interaction_debounce`   | Logging/trace throttle for continuous drags (default 0.5). |
+| `interaction_grace`      | Settle window after the last raw event still counted as interacting (default 5). |
+| `max_dwell_factor`       | Hard ceiling = `duration × factor`. |
+| `min_max_dwell`          | Floor for that hard ceiling, in seconds. |
+| `launch_timeout`         | How long to wait for the browser window to appear. |
+| `prewarm`                | Pre-warm the next weblink (disabled on Windows). |
+
+### 6.4 Diagnostics
+
+The watcher traces structured events through `playback_trace.py`:
+`weblink_launch`, `weblink_visible`, `weblink_interaction`, `weblink_end`
+(with reason `viewer_idle`, `browser_exited` or `max_dwell`),
+`weblink_not_visible` and `weblink_failed`.

config/app_config.json

@@ -1,12 +1,25 @@
 {
-  "server_ip": "192.168.0.109",
+  "server_ip": "192.168.0.110",
-  "port": "8080",
+  "port": "80",
-  "screen_name": "Birou_IT",
+  "screen_name": "DESKTOP-NJLBQKH",
   "quickconnect_key": "8887779",
   "orientation": "Landscape",
   "touch": "True",
   "max_resolution": "1920x1080",
   "edit_feature_enabled": true,
   "use_https": false,
-  "verify_ssl": false
+  "verify_ssl": false,
+  "card_reader_mode": "auto",
+  "card_reader_device": "",
+  "card_reader_timeout": 5,
+  "weblink": {
+    "engine": "auto",
+    "interaction_postpone": 10,
+    "interaction_debounce": 0.5,
+    "interaction_grace": 5.0,
+    "max_dwell_factor": 6.0,
+    "min_max_dwell": 300,
+    "launch_timeout": 15,
+    "prewarm": true
+  }
 }

documentation/CODE_SIGNING_SMART_APP_CONTROL.md

@@ -0,0 +1,108 @@
+# Kiwy Signage Player — Code Signing & Smart App Control (Production)
+
+> **TL;DR:** If production PCs have **Smart App Control (SAC) ON** and you
+> cannot disable it, the player `.exe` **must be signed by a certificate from a
+> reputable public CA**. There is no other way — SAC blocks unsigned binaries at
+> the kernel level (no "Run anyway" button). Self-signed certs and Defender
+> exclusions do **not** satisfy SAC.
+
+---
+
+## 1. Why Smart App Control blocks the app
+
+- SAC (Windows 11 22H2+, "Smart App Control" in **Windows Security → App &
+  browser control**) only runs apps that are **signed by a reputable publisher**.
+- Your locally-built `KiwySignagePlayer.exe` is **unsigned**
+  (`Get-AuthenticodeSignature` → `NotSigned`), so SAC refuses to launch it and
+  shows "An Application Control policy has blocked this file."
+- Unlike classic SmartScreen, SAC has **no "Run anyway" button** and cannot be
+  bypassed per-file. Disabling SAC is **permanent** and only possible with admin
+  rights — so it is not viable for locked-down production PCs.
+
+---
+
+## 2. The solution for production: a real code-signing certificate
+
+1. **Buy an OV code-signing certificate** from a reputable CA, e.g.:
+   - Sectigo Code Signing
+   - SSL.com Code Signing
+   - DigiCert Code Signing
+   - GlobalSign Code Signing
+   OV is sufficient for SAC; EV gives the highest trust level. Cost is roughly
+   USD 100–300/yr. The CA will issue a `.pfx`/`.p12` (or `.cer`+key).
+
+2. **Sign the exe** after each build. Place your pfx at
+   `windows\kiwy_signing.pfx` (or set `KIWY_SIGN_PFX` env var) — `build_win.bat`
+   will then auto-sign via `sign_exe.ps1`:
+
+   ```powershell
+   # One-off, from the windows\ folder:
+   .\sign_exe.ps1 -CertPath "C:\certs\mycodesign.pfx" -CertPassword "yourpwd"
+   ```
+
+   The script:
+   - locates `signtool.exe` (Windows SDK) — install with
+     `winget install Microsoft.WindowsSDK.10.0.26100` if missing,
+   - signs with **SHA256** + **RFC3161 timestamp** (required for SAC and to
+     keep the signature valid after the cert expires),
+   - verifies the result with `Get-AuthenticodeSignature`.
+
+3. **Test** — confirm on one production PC:
+   ```powershell
+   Get-AuthenticodeSignature "dist\KiwySignagePlayer\KiwySignagePlayer.exe"
+   # Status must be: Valid
+   ```
+
+---
+
+## 3. Dev / test machines (where you have admin rights)
+
+If a test PC has SAC **off**, you can make the app trusted locally without
+buying a cert:
+
+```powershell
+# Run as Administrator
+.\create_self_signed_cert.ps1
+```
+
+This creates a self-signed code-signing cert, exports `kiwy_dev_signing.pfx`,
+and installs it into **Trusted Root + Trusted Publisher + Trusted People** for
+the current user, so the player runs without SmartScreen/Defender prompts on
+that dev PC.
+
+⚠️ **This does NOT satisfy SAC.** It is only for machines where SAC is off or
+where you have admin rights.
+
+---
+
+## 4. Build → sign → verify workflow
+
+```bat
+:: 1. Build (produces dist\KiwySignagePlayer\KiwySignagePlayer.exe)
+cd windows
+venv\Scripts\python.exe -m PyInstaller build.spec --clean --noconfirm
+
+:: 2. Sign (auto if kiwy_signing.pfx present, else manual)
+.\sign_exe.ps1 -CertPath "C:\certs\mycodesign.pfx" -CertPassword "..."
+
+:: 3. Verify
+Get-AuthenticodeSignature "dist\KiwySignagePlayer\KiwySignagePlayer.exe"
+```
+
+`build_win.bat` now does step 1 + step 2 automatically when a pfx is present.
+
+---
+
+## 5. Important caveats
+
+- **Timestamping is mandatory.** The sign script timestamps by default
+  (`http://timestamp.digicert.com`). Without a timestamp, the signature becomes
+  invalid once the certificate expires and SAC will block the app.
+- **SAC reputation takes time.** Even a validly signed exe from a brand-new
+  certificate may be blocked until the CA's reputation builds. EV certificates
+  and well-known CAs (DigiCert, Sectigo, SSL.com) pass immediately.
+- **Re-sign after every build.** PyInstaller creates a new exe each time; the
+  old signature is lost. The auto-sign step in `build_win.bat` handles this.
+- **Do not use UPX** on the signed exe — it invalidates the signature and can
+  trigger false positives. (`upx=True` in the spec currently does nothing
+  because UPX is not installed; if you ever install UPX, set it to False.)

playlists/server_playlist.json

@@ -1,37 +0,0 @@
-{
-  "count": 4,
-  "player_id": 1,
-  "player_name": "Test_player1",
-  "playlist": [
-    {
-      "file_name": "sean-oulashin-KMn4VEeEPR8-unsplash.jpg",
-      "type": "image",
-      "url": "media/sean-oulashin-KMn4VEeEPR8-unsplash.jpg",
-      "duration": 14,
-      "edit_on_player": true
-    },
-    {
-      "file_name": "weblink-1e4a4d6d885a",
-      "type": "weblink",
-      "url": "https://moto-adv.com/",
-      "duration": 30,
-      "edit_on_player": false
-    },
-    {
-      "file_name": "sample-30s.mp4",
-      "type": "video",
-      "url": "media/sample-30s.mp4",
-      "duration": 31,
-      "edit_on_player": false
-    },
-    {
-      "file_name": "edited_media/5/eye_e_v2.jpg",
-      "type": "image",
-      "url": "media/edited_media/5/eye_e_v2.jpg",
-      "duration": 50,
-      "edit_on_player": true
-    }
-  ],
-  "playlist_id": 1,
-  "playlist_version": 14
-}

python version

@@ -0,0 +1 @@
+Python 3.12.9

src/edit_popup.py

@@ -82,11 +82,17 @@ class DrawingLayer(Widget):
 
 class EditPopup(Popup):
     """Popup for editing/annotating images"""
-    def __init__(self, player_instance, image_path, user_card_data=None, **kwargs):
+    def __init__(self, player_instance, image_path, user_card_data=None,
+                 media_id=None, original_filename=None, **kwargs):
         super(EditPopup, self).__init__(**kwargs)
         self.player = player_instance
         self.image_path = image_path
         self.user_card_data = user_card_data  # Store card data to send to server on save
+        # Server naming context: which media item (id) is being edited and what
+        # its original file name is on the server. The server stores edited
+        # media under 'edited_media/<media_id>/', so we must reproduce that.
+        self.media_id = media_id
+        self.original_filename = original_filename  # server-side file_name
         
         # Auto-close timer (5 minutes)
         self.auto_close_timeout = 300  # 5 minutes in seconds
@@ -259,8 +265,15 @@ class EditPopup(Popup):
     def save_image(self, instance):
         """Save the edited image"""
         try:
-            # Create edited_media directory if it doesn't exist
+            # Edited media is stored on the server under
-            edited_dir = os.path.join(self.player.base_dir, 'media', 'edited_media')
+            # 'edited_media/<media_id>/'. Reproduce that subfolder locally so
+            # the upload naming matches what the server expects. Fall back to
+            # the flat 'edited_media/' folder when no media_id is available.
+            edited_base = os.path.join(self.player.base_dir, 'media', 'edited_media')
+            if self.media_id is not None:
+                edited_dir = os.path.join(edited_base, str(self.media_id))
+            else:
+                edited_dir = edited_base
             os.makedirs(edited_dir, exist_ok=True)
             
             # Get original filename
@@ -310,8 +323,22 @@ class EditPopup(Popup):
                     # Overwrite the file
                     shutil.copy2(output_path, self.image_path)
                     
-                    # Force file system sync to ensure data is written to disk
+                    # Force file system sync to ensure data is written to disk.
+                    # NOTE: os.sync() is Linux-only and raises AttributeError on
+                    # Windows — that used to abort the whole pipeline before the
+                    # metadata/upload steps. Use a cross-platform fsync that is
+                    # best-effort and can never break the save/upload flow.
+                    try:
+                        if hasattr(os, 'sync'):
                             os.sync()
+                        else:
+                            with open(output_path, 'rb') as _f:
+                                try:
+                                    os.fsync(_f.fileno())
+                                except Exception:
+                                    pass
+                    except Exception as _sync_err:
+                        Logger.warning(f"EditPopup: File sync skipped ({_sync_err})")
                     
                     # Verify the overwrite
                     new_size = os.path.getsize(self.image_path)
@@ -326,9 +353,15 @@ class EditPopup(Popup):
                     self.ids.top_toolbar.opacity = 1
                     self.ids.right_sidebar.opacity = 1
                     
-                    # Create and save metadata
+                    # Create and save metadata. This runs in its own guarded
+                    # block so that a failure here cannot silently stop the
+                    # upload — the two steps are intentionally decoupled.
+                    json_filename = None
+                    try:
                         json_filename = self._save_metadata(edited_dir, new_name, base_name, 
                                            new_version if version_match else 1, output_filename)
+                    except Exception as meta_err:
+                        Logger.error(f"EditPopup: Metadata save failed: {meta_err}")
                     
                     # Upload to server in background (continues after popup closes)
                     upload_thread = threading.Thread(
@@ -414,6 +447,14 @@ class EditPopup(Popup):
             'version': version,
             'user_card_data': self.user_card_data  # Card data from reader (or None)
         }
+        # Include the server-side file name and media id so the server can
+        # attach the edit to the correct media item.
+        if self.original_filename:
+            metadata['original_filename'] = self.original_filename
+        else:
+            metadata['original_filename'] = os.path.basename(self.image_path)
+        if self.media_id is not None:
+            metadata['media_id'] = self.media_id
         
         # Save metadata JSON
         json_filename = f"{new_name}_metadata.json"
@@ -444,16 +485,37 @@ class EditPopup(Popup):
                 Logger.warning("EditPopup: Missing server URL or auth code (upload skipped)")
                 return False
             
-            # Load metadata from file
+            # Load metadata from file (or build it in memory if the metadata
+            # file was not written — the upload must still go through).
+            metadata = None
+            if metadata_path and os.path.exists(metadata_path):
+                try:
                     with open(metadata_path, 'r') as meta_file:
                         metadata = json.load(meta_file)
+                except Exception as e:
+                    Logger.warning(f"EditPopup: Could not read metadata file: {e}")
+            if not metadata:
+                metadata = {
+                    'time_of_modification': datetime.now().isoformat(),
+                    'original_name': os.path.basename(image_path),
+                    'new_name': os.path.basename(image_path),
+                    'version': 1,
+                    'user_card_data': self.user_card_data,
+                }
+                if self.original_filename:
+                    metadata['original_filename'] = self.original_filename
+                if self.media_id is not None:
+                    metadata['media_id'] = self.media_id
             
             # Prepare upload URL - send to the original file endpoint
             upload_url = f"{server_url}/api/player-edit-media"
             headers = {'Authorization': f'Bearer {auth_code}'}
             
-            # Add the original filename to metadata so server knows which file was edited
+            # Ensure the original filename (server-side name) is present so the
-            metadata['original_filename'] = os.path.basename(metadata['original_path'])
+            # server knows which file was edited. Prefer the media context we
+            # captured when the edit popup opened.
+            if not metadata.get('original_filename'):
+                metadata['original_filename'] = os.path.basename(metadata.get('original_path', image_path))
             
             # Disable SSL verification for self-signed certificates (like main code does)
             # Note: This is NOT recommended for production with untrusted servers

src/get_playlists_v2.py

@@ -248,13 +248,11 @@ def download_media_files(playlist, media_dir, ssl_manager=None, server_url=None)
         # Web-link items have no file to download — pass the link through unchanged.
         if item_type == 'weblink':
             logger.info(f"🔗 Web link item (no download): {file_url}")
-            updated_playlist.append({
+            # Preserve every server field (audio/muted/description/id/position/...)
-                'file_name': file_name,
+            # instead of rebuilding a fixed dict, so nothing is silently dropped.
-                'type': 'weblink',
+            weblink_item = dict(media)
-                'url': file_url,  # keep the original web address (not a local path)
+            weblink_item['type'] = 'weblink'
-                'duration': duration,
+            updated_playlist.append(weblink_item)
-                'edit_on_player': False,
-            })
             continue
 
         local_path = os.path.join(media_dir, file_name)
@@ -318,14 +316,13 @@ def download_media_files(playlist, media_dir, ssl_manager=None, server_url=None)
                 # Don't skip - may still add to playlist
         
         # Always add the media item to the playlist, even if download failed
-        # (it might already exist or be available later)
+        # (it might already exist or be available later).
-        updated_media = {
+        # Preserve EVERY server field (audio/muted/description/id/position/...)
-            'file_name': file_name,
+        # by copying the original dict and only overriding the URL with the
-            'type': item_type,  # Preserve media type (image/video/...)
+        # local path — previously the fixed dict below dropped `audio`, `muted`,
-            'url': os.path.relpath(local_path, os.path.dirname(media_dir)),
+        # `description`, `id` and `position` from the saved playlist.
-            'duration': duration,
+        updated_media = dict(media)
-            'edit_on_player': media.get('edit_on_player', False)  # Preserve edit_on_player flag
+        updated_media['url'] = os.path.relpath(local_path, os.path.dirname(media_dir))
-        }
         updated_playlist.append(updated_media)
     
     return updated_playlist
@@ -354,7 +351,9 @@ def delete_unused_media(playlist_data, media_dir):
                     rel_path = os.path.relpath(full_path, media_dir)
                     
                     # Skip if file is in current playlist
-                    if rel_path in referenced_files:
+                    # Normalize paths to handle Windows backslashes vs server forward slashes
+                    normalized_rel = rel_path.replace('\\', '/')
+                    if normalized_rel in referenced_files or rel_path in referenced_files:
                         continue
                     
                     # Delete unreferenced file
@@ -454,6 +453,18 @@ def update_playlist_if_needed(config, playlist_dir, media_dir):
             return playlist_file
         else:
             logger.info("✓ Playlist is up to date")
+            # Even when the playlist version matches, ensure media files exist locally.
+            # The media folder might be empty (e.g. fresh install or deleted files).
+            logger.info("📥 Checking for missing media files...")
+            ssl_manager = auth.ssl_manager if config.get('use_https', True) else None
+            server_url = auth.auth_data.get('server_url', '')
+            downloaded = download_media_files(
+                server_data.get('playlist', []), media_dir, ssl_manager, server_url
+            )
+            if downloaded:
+                server_data['playlist'] = downloaded
+                # Re-save playlist with updated URLs if needed
+                save_playlist(server_data, playlist_dir)
             return playlist_file
     
     except Exception as e:

src/network_monitor.py

@@ -6,11 +6,16 @@ Checks server connectivity and manages WiFi restart on connection failure
 import subprocess
 import time
 import random
+import platform
 import requests
 from datetime import datetime
 from kivy.logger import Logger
 from kivy.clock import Clock
 
+# Detect platform once so the ping / WiFi-restart commands below can
+# pick the correct syntax (Linux vs Windows).
+IS_WINDOWS = platform.system() == 'Windows'
+
 
 class NetworkMonitor:
     """Monitor network connectivity and manage WiFi restart"""
@@ -99,9 +104,15 @@ class NetworkMonitor:
             
             Logger.info(f"NetworkMonitor: Pinging server: {hostname}")
             
-            # Ping the server hostname with 3 attempts
+            # Ping the server hostname with 3 attempts.
+            # Windows ping uses -n for count and -w for timeout (ms),
+            # while Linux uses -c and -W.
+            if IS_WINDOWS:
+                cmd = ['ping', '-n', '3', '-w', '3000', hostname]
+            else:
+                cmd = ['ping', '-c', '3', '-W', '3', hostname]
             result = subprocess.run(
-                ['ping', '-c', '3', '-W', '3', hostname],
+                cmd,
                 capture_output=True,
                 text=True,
                 timeout=10
@@ -123,8 +134,11 @@ class NetworkMonitor:
     
     def _restart_wifi(self):
         """
-        Restart WiFi by turning it off for a specified duration then back on
+        Restart WiFi by turning it off for a specified duration then back on.
-        This runs in a separate thread to not block the main application
+        Uses the platform-appropriate commands:
+          - Linux (Raspberry Pi):  sudo rfkill / ifconfig / dhclient
+          - Windows:               netsh wlan disconnect / connect
+        This runs in a separate thread to not block the main application.
         """
         def wifi_restart_thread():
             try:
@@ -132,6 +146,72 @@ class NetworkMonitor:
                 Logger.info("NetworkMonitor: INITIATING WIFI RESTART SEQUENCE")
                 Logger.info("NetworkMonitor: ====================================")
 
+                if IS_WINDOWS:
+                    self._restart_wifi_windows()
+                else:
+                    self._restart_wifi_linux()
+
+            except subprocess.TimeoutExpired:
+                Logger.error("NetworkMonitor: WiFi restart command timeout")
+            except Exception as e:
+                Logger.error(f"NetworkMonitor: Error during WiFi restart: {e}")
+
+        # Run in separate thread to not block the application
+        import threading
+        thread = threading.Thread(target=wifi_restart_thread, daemon=True)
+        thread.start()
+
+    def _restart_wifi_windows(self):
+        """Windows WiFi restart using netsh. Turn off for the wait period,
+        then turn back on so Windows reconnects to the preferred network."""
+        wait_minutes = self.wifi_restart_duration / 60
+        Logger.info(
+            f"NetworkMonitor: Windows WiFi restart — off for {wait_minutes:.0f} min"
+        )
+
+        # Turn WiFi OFF
+        off = subprocess.run(
+            ['netsh', 'wlan', 'disconnect'],
+            capture_output=True, text=True, timeout=10
+        )
+        if off.returncode == 0:
+            Logger.info("NetworkMonitor: ✓ WiFi turned OFF (netsh wlan disconnect)")
+        else:
+            Logger.warning(
+                f"NetworkMonitor: netsh wlan disconnect failed: {off.stderr.strip()}"
+            )
+
+        # Wait with WiFi OFF
+        Logger.info(
+            f"NetworkMonitor: WiFi will remain OFF for {wait_minutes:.0f} minutes "
+            f"(started {datetime.now().strftime('%H:%M:%S')})"
+        )
+        time.sleep(self.wifi_restart_duration)
+        Logger.info(
+            f"NetworkMonitor: Wait period completed at {datetime.now().strftime('%H:%M:%S')}"
+        )
+
+        # Turn WiFi back ON — Windows reconnects to the preferred network
+        on = subprocess.run(
+            ['netsh', 'wlan', 'connect'],
+            capture_output=True, text=True, timeout=10
+        )
+        if on.returncode == 0:
+            Logger.info("NetworkMonitor: ✓ WiFi re-enabled (netsh wlan connect)")
+        else:
+            # 'netsh wlan connect' without a profile may return non-zero even
+            # though the radio comes back on; log it but don't fail hard.
+            Logger.warning(
+                f"NetworkMonitor: netsh wlan connect returned {on.returncode}: "
+                f"{on.stderr.strip()} (may reconnect automatically)"
+            )
+
+        Logger.info("NetworkMonitor: ====================================")
+        Logger.info("NetworkMonitor: WIFI RESTART SEQUENCE COMPLETED")
+        Logger.info("NetworkMonitor: ====================================")
+
+    def _restart_wifi_linux(self):
+        """Linux (Raspberry Pi) WiFi restart using rfkill/ifconfig/dhclient."""
         # Turn off WiFi using rfkill (more reliable on Raspberry Pi)
         Logger.info("NetworkMonitor: Turning WiFi OFF using rfkill...")
         result = subprocess.run(
@@ -143,7 +223,6 @@ class NetworkMonitor:
 
         if result.returncode == 0:
             Logger.info("NetworkMonitor: ✓ WiFi turned OFF successfully (rfkill)")
-                    Logger.info("NetworkMonitor: WiFi is now DISABLED and will remain OFF")
         else:
             Logger.error(f"NetworkMonitor: rfkill failed, trying ifconfig...")
             Logger.error(f"NetworkMonitor: rfkill error: {result.stderr}")
@@ -223,13 +302,3 @@ class NetworkMonitor:
             Logger.info("NetworkMonitor: ====================================")
         else:
             Logger.error(f"NetworkMonitor: Failed to turn WiFi on: {result.stderr}")
-                    
-            except subprocess.TimeoutExpired:
-                Logger.error("NetworkMonitor: WiFi restart command timeout")
-            except Exception as e:
-                Logger.error(f"NetworkMonitor: Error during WiFi restart: {e}")
-        
-        # Run in separate thread to not block the application
-        import threading
-        thread = threading.Thread(target=wifi_restart_thread, daemon=True)
-        thread.start()

src/playback_trace.py

@@ -0,0 +1,64 @@
+"""
+playback_trace.py — Always-on playback transition logger.
+
+Kivy's log level is forced to 'warning' in main.py / run_win.py, which
+suppresses every Logger.info()/Logger.debug() line. That made it impossible
+to see why the player skips/crashes at the weblink->image and video->next
+transitions.
+
+This module writes a plain-text trace file (logs/playback_trace.log) with
+timestamps, INDEPENDENT of Kivy's log level, so we can always see exactly
+what the player is doing. It is thread-safe (a lock guards the append) and
+never throws (all failures are swallowed) so it can never break playback.
+
+Usage:
+    from playback_trace import trace
+    trace("play_current_media", index=3, name="foo.jpg", type="image")
+"""
+
+import os
+import threading
+import time
+
+_LOCK = threading.Lock()
+_LOG_PATH = None
+_OPENED = False
+
+
+def _ensure_path():
+    global _LOG_PATH, _OPENED
+    if _OPENED:
+        return _LOG_PATH
+    _OPENED = True
+    try:
+        # Respect the local data dir the launcher set (same place as logs/).
+        base = os.environ.get('KIWY_DATA_DIR') or os.getcwd()
+        log_dir = os.path.join(base, 'logs')
+        os.makedirs(log_dir, exist_ok=True)
+        _LOG_PATH = os.path.join(log_dir, 'playback_trace.log')
+    except Exception:
+        _LOG_PATH = None
+    return _LOG_PATH
+
+
+def trace(event, **kwargs):
+    """Append one line to the playback trace log.
+
+    Args:
+        event: short event name, e.g. 'next_media', 'eos', 'web_open'.
+        **kwargs: key=value context, e.g. index=3, name='foo.jpg'.
+    """
+    try:
+        path = _ensure_path()
+        if not path:
+            return
+        t = time.strftime('%H:%M:%S')
+        ms = int((time.time() % 1) * 1000)
+        parts = [f"{t}.{ms:03d}", event]
+        for k, v in kwargs.items():
+            parts.append(f"{k}={v}")
+        with _LOCK:
+            with open(path, 'a', encoding='utf-8') as f:
+                f.write(" ".join(parts) + "\n")
+    except Exception:
+        pass  # tracing must never break the player

src/player_auth.json

@@ -1,10 +0,0 @@
-{
-  "hostname": "Birou_IT",
-  "auth_code": "CZncd_2dlTZGieBEdqAbUTjf3qNyEUPDXr8jLVx7NLs",
-  "player_id": 1,
-  "player_name": "Test_player1",
-  "playlist_id": 1,
-  "orientation": "Landscape",
-  "authenticated": true,
-  "server_url": "http://192.168.0.109:8080"
-}

src/signage_player.kv

@@ -352,20 +352,27 @@
 # Settings popup content
 <SettingsPopup@Popup>:
     title: 'Player Settings'
-    size_hint: 0.8, 0.8
+    size_hint: 0.9, 0.85
     auto_dismiss: True
     
     BoxLayout:
         orientation: 'vertical'
-        padding: dp(20)
+        padding: [dp(15), dp(10)]
-        spacing: dp(15)
+        spacing: dp(8)
+        
+        ScrollView:
+            BoxLayout:
+                orientation: 'vertical'
+                spacing: dp(8)
+                size_hint_y: None
+                height: self.minimum_height
                 
                 # Server configuration
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         text: 'Server IP:'
@@ -378,7 +385,8 @@
                         id: server_input
                         size_hint_x: 0.7
                         multiline: False
-                font_size: sp(14)
+                        font_size: sp(13)
+                        hint_text: 'e.g. 192.168.0.110'
                         write_tab: False
                         on_touch_down: root.on_input_touch(self, args[1]) if self.collide_point(*args[1].pos) else None
                 
@@ -386,8 +394,8 @@
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         text: 'Port:'
@@ -400,7 +408,7 @@
                         id: port_input
                         size_hint_x: 0.7
                         multiline: False
-                font_size: sp(14)
+                        font_size: sp(13)
                         hint_text: '80 or 8080 (leave empty for default)'
                         input_filter: 'int'
                         write_tab: False
@@ -410,8 +418,8 @@
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         text: 'Screen Name:'
@@ -424,7 +432,8 @@
                         id: screen_input
                         size_hint_x: 0.7
                         multiline: False
-                font_size: sp(14)
+                        font_size: sp(13)
+                        hint_text: 'player name registered on the server'
                         write_tab: False
                         on_touch_down: root.on_input_touch(self, args[1]) if self.collide_point(*args[1].pos) else None
                 
@@ -432,8 +441,8 @@
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         text: 'Quickconnect:'
@@ -446,7 +455,8 @@
                         id: quickconnect_input
                         size_hint_x: 0.7
                         multiline: False
-                font_size: sp(14)
+                        font_size: sp(13)
+                        hint_text: 'e.g. 8887779'
                         write_tab: False
                         on_touch_down: root.on_input_touch(self, args[1]) if self.collide_point(*args[1].pos) else None
                 
@@ -454,8 +464,8 @@
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         text: 'Orientation:'
@@ -468,7 +478,7 @@
                         id: orientation_input
                         size_hint_x: 0.7
                         multiline: False
-                font_size: sp(14)
+                        font_size: sp(13)
                         write_tab: False
                         on_touch_down: root.on_input_touch(self, args[1]) if self.collide_point(*args[1].pos) else None
                 
@@ -476,8 +486,8 @@
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         text: 'Touch:'
@@ -490,7 +500,7 @@
                         id: touch_input
                         size_hint_x: 0.7
                         multiline: False
-                font_size: sp(14)
+                        font_size: sp(13)
                         write_tab: False
                         on_touch_down: root.on_input_touch(self, args[1]) if self.collide_point(*args[1].pos) else None
                 
@@ -498,8 +508,8 @@
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         text: 'Max Resolution:'
@@ -512,7 +522,7 @@
                         id: resolution_input
                         size_hint_x: 0.7
                         multiline: False
-                font_size: sp(14)
+                        font_size: sp(13)
                         hint_text: '1920x1080 or auto'
                         write_tab: False
                         on_touch_down: root.on_input_touch(self, args[1]) if self.collide_point(*args[1].pos) else None
@@ -521,11 +531,11 @@
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(36)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
-                text: 'Enable Edit Feature:'
+                        text: 'Enable Edit:'
                         size_hint_x: 0.3
                         text_size: self.size
                         halign: 'left'
@@ -534,87 +544,107 @@
                     CheckBox:
                         id: edit_enabled_checkbox
                         size_hint_x: None
-                width: dp(40)
+                        width: dp(36)
                         active: True
                         on_active: root.on_edit_feature_toggle(self.active)
                     
                     Label:
-                text: '(Allow editing images on this player)'
+                        text: '(Allow editing images)'
                         size_hint_x: 0.4
-                font_size: sp(12)
+                        font_size: sp(11)
                         text_size: self.size
                         halign: 'left'
                         valign: 'middle'
                         color: 0.7, 0.7, 0.7, 1
                 
+                # Separator
                 Widget:
-            size_hint_y: 0.05
+                    size_hint_y: None
+                    height: dp(5)
                 
                 # Reset Buttons Section
                 Label:
                     text: 'Reset Options:'
                     size_hint_y: None
-            height: dp(30)
+                    height: dp(26)
                     text_size: self.size
                     halign: 'left'
                     valign: 'middle'
                     bold: True
-            font_size: sp(16)
+                    font_size: sp(14)
                 
                 # Reset Buttons Row
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(50)
+                    height: dp(44)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Button:
                         id: reset_auth_btn
                         text: 'Reset Player Auth'
                         background_color: 0.8, 0.4, 0.2, 1
+                        font_size: sp(12)
                         on_press: root.reset_player_auth()
                     
                     Button:
                         id: reset_playlist_btn
                         text: 'Reset Playlist to v0'
                         background_color: 0.8, 0.4, 0.2, 1
+                        font_size: sp(12)
                         on_press: root.reset_playlist_version()
                     
                     Button:
                         id: restart_player_btn
                         text: 'Restart Player'
                         background_color: 0.2, 0.6, 0.8, 1
+                        font_size: sp(12)
                         on_press: root.restart_player()
                 
-        # Test Connection Button
+                # Test Connection + Production Mode Buttons
+                BoxLayout:
+                    orientation: 'horizontal'
+                    size_hint_y: None
+                    height: dp(44)
+                    spacing: dp(8)
+
                     Button:
                         id: test_connection_btn
                         text: 'Test Server Connection'
-            size_hint_y: None
-            height: dp(50)
                         background_color: 0.2, 0.4, 0.8, 1
+                        font_size: sp(13)
                         on_press: root.test_connection()
 
+                    Button:
+                        id: production_mode_btn
+                        text: 'Enable Production'
+                        background_color: 0.4, 0.4, 0.4, 1  # grey = disabled
+                        font_size: sp(13)
+                        on_press: root.toggle_production_mode()
+                
                 # Connection Status Label
                 Label:
                     id: connection_status
                     text: 'Click button to test connection'
                     size_hint_y: None
-            height: dp(40)
+                    height: dp(32)
                     text_size: self.size
                     halign: 'center'
                     valign: 'middle'
+                    font_size: sp(11)
                     color: 0.7, 0.7, 0.7, 1
                 
+                # Separator
                 Widget:
-            size_hint_y: 0.05
+                    size_hint_y: None
+                    height: dp(5)
                 
                 # Status information row
                 BoxLayout:
                     orientation: 'horizontal'
                     size_hint_y: None
-            height: dp(30)
+                    height: dp(26)
-            spacing: dp(10)
+                    spacing: dp(8)
                     
                     Label:
                         id: playlist_info
@@ -622,7 +652,7 @@
                         text_size: self.size
                         halign: 'center'
                         valign: 'middle'
-                font_size: sp(12)
+                        font_size: sp(11)
                     
                     Label:
                         id: media_count_info
@@ -630,7 +660,7 @@
                         text_size: self.size
                         halign: 'center'
                         valign: 'middle'
-                font_size: sp(12)
+                        font_size: sp(11)
                     
                     Label:
                         id: status_info
@@ -638,17 +668,14 @@
                         text_size: self.size
                         halign: 'center'
                         valign: 'middle'
-                font_size: sp(12)
+                        font_size: sp(11)
         
-        Widget:
+        # Action buttons (always visible, outside scroll)
-            size_hint_y: 0.05
-        
-        # Action buttons
         BoxLayout:
             orientation: 'horizontal'
             size_hint_y: None
-            height: dp(50)
+            height: dp(44)
-            spacing: dp(20)
+            spacing: dp(15)
             
             Button:
                 text: 'Save & Close'

src/video_safety.py

@@ -0,0 +1,185 @@
+"""video_safety.py — make Kivy's video teardown non-blocking.
+
+The bug this fixes
+------------------
+The player hung (Windows `AppHangB1`) after ~30-45 minutes of looping, always
+at a *video* item. The trace stopped dead right after `video_loaded` with no
+`video_eos` and no `advance_after_video_eos`.
+
+Cause — a blocking ``join()`` that Kivy performs on the calling thread:
+
+1. At end of stream, ffpyplayer/``VideoFFPy`` fires its ``on_eos`` event.
+2. Kivy's ``Video`` widget binds its own handler **first** (in
+   ``kivy/uix/video.py``: ``self._video.bind(..., on_eos=self._on_eos)``).
+   That handler is::
+
+       def _on_eos(self, *largs):
+           if not self._video or self._video.eos != 'loop':
+               self.state = 'stop'      # <-- fires DURING the on_eos dispatch
+
+3. ``Video.state = 'stop'`` → ``on_state`` → ``VideoFFPy.stop()`` →
+   ``unload()``, which does ``self._thread.join()``
+   (``video_ffpyplayer.py``: ``# TODO: use callback, don't block here``).
+4. That join waits for the ffpyplayer decode thread, whose lifetime is variable
+   (the existing code comments note "0.4s up to 100s+"). When it does not
+   return, the SDL/Kivy main thread never returns either — the window stops
+   pumping messages and Windows declares the app hung.
+
+Why it only shows up after a while: our own EOS handler deliberately does not
+set ``state = 'stop'`` (that path is already handled off-thread), so the hang
+depends on Kivy's own handler firing first and on that particular video's
+decode thread being slow to exit. It is a race, so it looks random and only
+appears after many video cycles.
+
+The fix
+-------
+Bound the wait. ffpyplayer sets ``_ffplayer_need_quit = True`` and wakes its
+thread before joining, so the thread *is* asked to exit — we simply stop
+waiting indefinitely for it. ``suppress_kivy_video_blocking_unload()`` patches
+the join on the specific ``VideoFFPy`` thread object to a bounded timeout, so a
+wedged decode thread can no longer take the whole player down. The teardown
+still runs off the main thread (see ``_teardown_video_async`` in ``main.py``),
+so the normal case is unaffected.
+
+This is deliberately narrow: only Kivy's own internal video thread is patched,
+only its ``join`` timeout is bounded, and every failure path leaves Kivy
+untouched.
+"""
+
+from __future__ import annotations
+
+import threading
+import time
+
+#: How long a video's decode thread may take to exit before we give up on it.
+#: A healthy ffpyplayer thread exits in well under a second; this allows a lot
+#: of slack while still guaranteeing the UI thread is never parked forever.
+DEFAULT_JOIN_TIMEOUT = 5.0
+
+_patched_threads = 0
+_lock = threading.Lock()
+
+
+def _log(message):
+    try:
+        from kivy.logger import Logger
+
+        Logger.info(f'[VideoSafety] {message}')
+    except Exception:
+        print(f'[VideoSafety] {message}')
+
+
+def suppress_kivy_video_blocking_unload(timeout=DEFAULT_JOIN_TIMEOUT):
+    """Bound the join() Kivy's VideoFFPy.unload() performs on the caller.
+
+    Must be called *before* the video widget is constructed, because the
+    decode thread is created during ``play()``. Safe to call repeatedly.
+
+    Args:
+        timeout: maximum seconds to wait for the decode thread to exit.
+
+    Returns:
+        True when the guard was installed (or already present).
+    """
+    global _patched_threads
+
+    if timeout is None or float(timeout) <= 0:
+        return False
+
+    try:
+        # Importing this module has the side effect of selecting the
+        # ffpyplayer provider; if a different provider is active (or video
+        # support is missing) there is nothing to patch.
+        from kivy.core.video import Video as CoreVideo
+
+        if CoreVideo is None:
+            return False
+    except Exception as exc:
+        _log(f'video provider unavailable, nothing to patch ({exc})')
+        return False
+
+    try:
+        from kivy.core.video import Video
+    except Exception:
+        Video = None
+
+    if Video is None:
+        return False
+
+    # VideoFFPy resolves via the current provider. Import it directly so we
+    # patch the right class even if the provider changes later.
+    try:
+        from kivy.core.video import video_ffpyplayer as _vfp
+    except Exception as exc:
+        _log(f'ffpyplayer provider not active, nothing to patch ({exc})')
+        return False
+
+    provider = getattr(_vfp, 'VideoFFPy', None)
+    if provider is None:
+        return False
+
+    with _lock:
+        if getattr(provider, '_kiwy_bounded_join', False):
+            return True
+
+        original_play = provider.play
+        if getattr(provider, '_kiwy_original_play', None) is None:
+            provider._kiwy_original_play = original_play
+
+        def play(self, *args, **kwargs):
+            result = provider._kiwy_original_play(self, *args, **kwargs)
+            _bound_thread_join(self, timeout)
+            return result
+
+        provider.play = play
+        provider._kiwy_bounded_join = True
+        _patched_threads += 1
+
+    _log(f'Kivy video unload join() bounded to {float(timeout):.1f}s')
+    return True
+
+
+def _bound_thread_join(provider_instance, timeout):
+    """Replace the provider's internal thread join with a bounded one.
+
+    ffpyplayer has already been told to quit (``_ffplayer_need_quit = True``)
+    and its thread woken before ``unload()`` joins, so bounding the wait does
+    not leak work — it only stops an unresponsive decode thread from freezing
+    the whole application.
+    """
+    thread = getattr(provider_instance, '_thread', None)
+    if thread is None:
+        return
+    if getattr(thread, '_kiwy_bounded_join', False):
+        return
+
+    try:
+        real_join = thread.join
+    except Exception:
+        return
+
+    def bounded_join(join_timeout=None):
+        """Join with a hard upper bound; never block the caller forever."""
+        limit = float(timeout if join_timeout is None else min(join_timeout, timeout))
+        started = time.monotonic()
+        try:
+            real_join(timeout=limit)
+        except TypeError:
+            # Some Python builds dislike an explicit keyword here.
+            try:
+                real_join(limit)
+            except Exception:
+                pass
+        except Exception:
+            pass
+        if thread.is_alive():
+            _log(
+                f'video decode thread still alive {time.monotonic() - started:.1f}s '
+                'after being asked to quit - continuing without it'
+            )
+
+    try:
+        thread.join = bounded_join
+        thread._kiwy_bounded_join = True
+    except Exception as exc:
+        _log(f'could not bound video thread join ({exc})')

windows/2.3.0

@@ -0,0 +1,34 @@
+Requirement already satisfied: ffpyplayer in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (4.5.3)
+Requirement already satisfied: requests in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (2.34.2)
+Requirement already satisfied: aiohttp in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (3.14.3)
+Requirement already satisfied: bcrypt in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (5.0.0)
+Requirement already satisfied: certifi in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (2026.7.22)
+Requirement already satisfied: pyinstaller in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (6.21.0)
+Requirement already satisfied: kivy[base] in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (2.3.1)
+Requirement already satisfied: Kivy-Garden>=0.1.4 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (0.1.5)
+Requirement already satisfied: docutils in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (0.23)
+Requirement already satisfied: pygments in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (2.20.0)
+Requirement already satisfied: filetype in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (1.2.0)
+Requirement already satisfied: kivy-deps.angle~=0.4.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (0.4.0)
+Requirement already satisfied: kivy-deps.sdl2~=0.8.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (0.8.0)
+Requirement already satisfied: kivy-deps.glew~=0.3.1 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (0.3.1)
+Requirement already satisfied: pypiwin32 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (223)
+Requirement already satisfied: pillow<11,>=9.5.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from kivy[base]) (10.4.0)
+Requirement already satisfied: charset_normalizer<4,>=2 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from requests) (3.4.9)
+Requirement already satisfied: idna<4,>=2.5 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from requests) (3.18)
+Requirement already satisfied: urllib3<3,>=1.26 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from requests) (2.7.0)
+Requirement already satisfied: aiohappyeyeballs>=2.5.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (2.7.1)
+Requirement already satisfied: aiosignal>=1.4.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (1.4.0)
+Requirement already satisfied: attrs>=17.3.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (26.1.0)
+Requirement already satisfied: frozenlist>=1.1.1 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (1.8.0)
+Requirement already satisfied: multidict<7.0,>=4.5 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (6.7.1)
+Requirement already satisfied: propcache>=0.2.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (0.5.2)
+Requirement already satisfied: typing_extensions>=4.4 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (4.16.0)
+Requirement already satisfied: yarl<2.0,>=1.17.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from aiohttp) (1.24.5)
+Requirement already satisfied: altgraph in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from pyinstaller) (0.17.5)
+Requirement already satisfied: packaging>=22.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from pyinstaller) (26.2)
+Requirement already satisfied: pefile>=2022.5.30 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from pyinstaller) (2024.8.26)
+Requirement already satisfied: pyinstaller-hooks-contrib>=2026.6 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from pyinstaller) (2026.6)
+Requirement already satisfied: pywin32-ctypes>=0.2.1 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from pyinstaller) (0.2.3)
+Requirement already satisfied: setuptools>=42.0.0 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from pyinstaller) (83.0.0)
+Requirement already satisfied: pywin32>=223 in c:\users\dell-pc\desktop\kiwy-signage\windows\venv\lib\site-packages (from pypiwin32->kivy[base]) (312)

windows/README_WINDOWS_BUILD.md

@@ -0,0 +1,286 @@
+# Kiwy Signage Player - Windows Edition
+
+Build and run the Kiwy digital signage player on Windows as a standalone `.exe`.
+
+## 📋 Requirements Analysis
+
+The original app was built for **Raspberry Pi (Linux)**, using these technologies:
+
+| Component | Original (RPi/Linux) | Windows Equivalent |
+|-----------|---------------------|-------------------|
+| **GUI** | Kivy 2.3+ | Kivy 2.3+ (works cross-platform) |
+| **Video** | ffpyplayer | ffpyplayer (needs FFmpeg DLLs) |
+| **Card Reader** | evdev (Linux input) | ✅ Raw Input API + LL-hook fallback |
+| **Screen Keep-Awake** | xset, xdotool, Wayland | `SetThreadExecutionState` (Win32 API) |
+| **Weblink** | chromium-browser (kiosk) | Chrome/Edge (--kiosk mode) |
+| **Audio** | ALSA/PulseAudio | DirectSound |
+| **Window Backend** | SDL2 (Wayland/X11) | SDL2 (Windows native) |
+| **OpenGL** | Desktop GL | ANGLE (DirectX wrapper) |
+
+### What works on Windows
+- ✅ Media playback (images, videos via ffpyplayer)
+- ✅ Playlist sync from DigiServer (HTTP/HTTPS)
+- ✅ Touch & mouse controls
+- ✅ Settings popup
+- ✅ Image editing/annotation
+- ✅ Password-protected exit
+- ✅ Web links (opens in Chrome/Edge kiosk)
+- ✅ Network monitoring
+- ✅ Auto-update playlist
+- ✅ Card reader authentication (Raw Input API — see below)
+
+### What is disabled on Windows
+- ❌ HDMI power management (tvservice is RPi-specific)
+- ❌ WiFi restart (uses Linux `nmcli`)
+
+## 🚀 Quick Start (Development)
+
+### Prerequisites
+1. **Python 3.12+** (64-bit) — [python.org](https://python.org)
+   - ⚠️ **Python 3.13+ is NOT supported** — Kivy 2.3.1 does not have pre-built wheels for it
+   - ⚠️ **Python 3.14 is NOT supported** — no Kivy wheels available
+   - ✅ **Python 3.12.9** is the recommended version (confirmed working)
+2. **FFmpeg** — for video codec support
+   - Download from [ffmpeg.org](https://ffmpeg.org/download.html)
+   - Add `bin\` folder to your PATH
+3. **Visual C++ Redistributable** — [latest](https://aka.ms/vs/17/release/vc_redist.x64.exe)
+
+### Install & Run
+```batch
+cd windows
+
+REM Create virtual environment with Python 3.12
+py -3.12 -m venv venv
+:: OR specify full path:
+:: "C:\Users\Dell-PC\AppData\Local\Programs\Python\Python312\python.exe" -m venv venv
+
+venv\Scripts\activate
+
+REM Install dependencies
+pip install -r requirements_win.txt
+
+REM Run in development mode
+python run_win.py
+```
+
+## 📦 Building the .exe
+
+### One-Command Build
+```batch
+cd windows
+build_win.bat
+```
+
+### Manual Build
+```batch
+cd windows
+venv\Scripts\activate
+pip install -r requirements_win.txt
+pyinstaller build.spec --clean --noconfirm
+```
+
+### Output
+```
+windows\dist\KiwySignagePlayer\
+    ├── KiwySignagePlayer.exe     # Main executable
+    ├── config/                    # Config files (auto-copied)
+    ├── resources/                 # Icons, intro video
+    └── ... (supporting DLLs)
+```
+
+For a **single-file .exe**, edit `build.spec` — uncomment the `exe_onefile` section and comment out the `coll = COLLECT(...)` section.
+
+## 🌐 Web Links (embedded WebView2)
+
+Web links render with **WebView2**, embedded as a child window *inside* the
+Kivy window. Because it is not a separate browser process, it cannot open
+behind the player, cannot be handed off to an existing browser and exit, and
+never leaves leaked `msedge.exe`/`chrome.exe` processes behind.
+
+WebView2 has **two** parts, and they are handled differently:
+
+| Part | What it is | How it ships |
+|------|------------|--------------|
+| **SDK** | `Microsoft.Web.WebView2.Core.dll` + `WebView2Loader.dll` — the API surface | Bundled in the exe (`windows\webview2_sdk\`, ~860 KB) |
+| **Runtime** | `msedgewebview2.exe` — the actual Chromium engine | Microsoft's evergreen component. Ships with Windows 11 and nearly all Windows 10 machines. **Installed automatically on first start if missing.** |
+
+### Automatic Runtime installation
+
+On start-up the player checks for the Runtime (registry `pv` value under the
+Edge Update client GUID, with a live SDK probe as fallback). If it is absent it
+runs the installer silently:
+
+```
+MicrosoftEdgeWebview2Setup.exe /silent /install
+```
+
+Deliberately **not elevated** — an unelevated run performs a *per-user* install,
+so no UAC dialog ever appears on the signage display.
+
+Installers are looked up in this order, so you can drop a replacement next to
+the `.exe` without rebuilding:
+
+1. `KIWY_WEBVIEW2_INSTALLER` environment variable
+2. `<exe dir>\webview2_runtime\`
+3. `<exe dir>\` (next to the executable)
+4. bundled copy inside the exe
+
+| Installer | Size | Bundled? | Use when |
+|-----------|------|----------|----------|
+| `MicrosoftEdgeWebview2Setup.exe` | ~1.7 MB | ✅ yes | Machine has internet (downloads the Runtime) |
+| `MicrosoftEdgeWebView2RuntimeInstallerX64.exe` | ~203 MB | ⬜ opt-in | Machine is **offline** |
+
+To bundle the offline installer (adds ~200 MB to the exe):
+
+```powershell
+cd windows
+.\webview2_runtime\download_runtime_installers.ps1 -Offline
+venv\Scripts\python.exe -m PyInstaller build.spec --clean --noconfirm
+```
+
+Re-download the installers at any time (they are Microsoft-signed; the script
+verifies the signature):
+
+```powershell
+.\webview2_runtime\download_runtime_installers.ps1
+```
+
+### If WebView2 is unavailable
+
+Web links fall back to the Chrome/Edge subprocess engine (see
+`src/weblink_session.py`). That engine still works, but reintroduces the old
+drawbacks — a separate browser window, possible background/z-order behaviour,
+and browser processes to clean up.
+
+### Troubleshooting
+
+| Problem | Solution |
+|---------|----------|
+| Web links show a black/blank page | Check `logs\` for `[WebView2]` lines. Confirm the Runtime version is reported. |
+| Runtime install did not happen | A failed attempt is not retried for 6 hours (marker: `logs\.webview2_install_attempt`). Delete that file to retry immediately. |
+| Need it working offline | Bundle the standalone installer (see above). |
+
+## ⚙️ Configuration
+
+**No configuration ships with the exe.** On a machine that has never been set
+up, `config\app_config.json` is absent, so after the splash video the player
+shows a *"Player is not configured"* notice, waits 5 seconds and then opens the
+**Settings** screen automatically. Enter the server details and playback starts
+right away — no restart required.
+
+On a machine that already has a valid `config\app_config.json`, the first-run
+flow is skipped entirely and the cached playlist plays immediately.
+
+1. Config is created next to the **executable** (not in `%APPDATA%`)
+   - The .exe creates: `config/`, `media/`, `playlists/`, `logs/` locally
+   - This allows you to copy the entire `dist\KiwySignagePlayer\` folder anywhere and it works
+2. The player is considered configured once `server_ip`, `screen_name` and
+   `quickconnect_key` all hold real values. Placeholder values
+   (`localhost`, `kivy-player`, `1234567`, `127.0.0.1`) count as unconfigured.
+3. Edit `config\app_config.json` (next to the .exe) to set your server:
+
+```json
+{
+  "server_ip": "192.168.0.109",
+  "port": "8080",
+  "screen_name": "Birou_IT",
+  "quickconnect_key": "8887779",
+  "orientation": "Landscape",
+  "touch": "True",
+  "max_resolution": "1920x1080",
+  "edit_feature_enabled": true,
+  "use_https": false,
+  "verify_ssl": false
+}
+```
+
+## 💳 Card Reader (Windows Edition)
+
+The card reader now works on Windows via the **Raw Input API** (with a
+low-level keyboard-hook fallback). It replaces the Linux-only `evdev`
+implementation automatically when `run_win.py` starts.
+
+- Detection mirrors the Linux logic:
+  1. A device named with `card` / `reader` / `rfid`
+  2. A USB HID keyboard (non-PS/2) — most card readers enumerate this way
+  3. Any remaining keyboard (excluding touchscreens/mice)
+- Only keystrokes from the **selected device** are captured, so the
+  operator's real keyboard cannot pollute card data.
+- Card data ends on **Enter** (same as Linux).
+
+### Card reader config (optional)
+
+Add any of these to `config\app_config.json` next to the .exe:
+
+```json
+{
+  "card_reader_mode": "auto",      // "auto" | "raw" | "hook"
+  "card_reader_device": "",        // e.g. "VID_08FF" to force a specific device
+  "card_reader_timeout": 5         // seconds
+}
+```
+
+- `card_reader_mode`: `auto` (default, tries Raw Input then falls back),
+  `raw` (force Raw Input), or `hook` (force the low-level keyboard hook).
+- `card_reader_device`: optional substring of the device name to pin the
+  reader (e.g. `VID_08FF`, `HID#VID_08FF`). Run the manual test below to see
+  the exact device names on your host.
+- `card_reader_timeout`: how long the swipe popup waits (default 5 s).
+
+### Manual card reader test (no GUI)
+
+```batch
+cd windows
+venv\Scripts\activate
+python win_card_reader.py
+```
+
+Swipe a card within 10 seconds — the tool prints the captured data, then
+exits. The detected devices are listed in the console/log.
+
+## 🧪 Testing
+
+```batch
+cd windows
+venv\Scripts\activate
+python run_win.py
+```
+
+## 🔧 Troubleshooting
+
+| Problem | Solution |
+|---------|----------|
+| **"ffpyplayer not found"** | Install: `pip install ffpyplayer` |
+| **"No video" / black screen** | Install FFmpeg and add to PATH. Try `KIVY_GL_BACKEND=angle_sdl2` or `KIVY_GL_BACKEND=gl` |
+| **Kivy window doesn't open** | Run from command prompt to see error messages. Ensure GPU drivers are up to date. |
+| **Weblinks not opening** | Install Google Chrome or Microsoft Edge |
+| **Can't connect to server** | Check firewall. Try `use_https: false` and `verify_ssl: false` for testing |
+| **Antivirus flags .exe** | Add the output folder to antivirus exclusions. This is a false positive common with PyInstaller. |
+
+## 📁 Project Structure (Build)
+
+```
+Kiwy-Signage/
+├── windows/
+│   ├── run_win.py              # Windows entry point (patches platform differences)
+│   ├── build.spec              # PyInstaller configuration
+│   ├── build_win.bat           # One-click build script
+│   ├── pyi_runtime_hook.py     # PyInstaller runtime hook
+│   ├── requirements_win.txt    # Windows Python dependencies
+│   └── README_WINDOWS_BUILD.md # This file
+├── src/
+│   ├── main.py                 # Main application (original)
+│   ├── get_playlists_v2.py     # Playlist sync
+│   ├── player_auth.py          # Authentication
+│   ├── ssl_utils.py            # SSL/HTTPS
+│   ├── keyboard_widget.py      # On-screen keyboard
+│   ├── network_monitor.py      # Network monitoring
+│   ├── edit_popup.py           # Image editing
+│   └── signage_player.kv       # Kivy UI layout
+├── config/
+│   ├── app_config.json         # Player configuration
+│   └── resources/              # Icons, images, intro video
+├── media/                      # Downloaded media (created at runtime)
+├── playlists/                  # Playlist files (created at runtime)
+└── logs/                       # Log files (created at runtime)
+```

windows/_check_syntax.py

@@ -0,0 +1,18 @@
+"""Quick syntax check for build files."""
+import ast, sys
+
+files = [
+    r'c:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\run_win.py',
+    r'c:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\pyi_runtime_hook.py',
+]
+
+for f in files:
+    try:
+        with open(f, encoding='utf-8') as fh:
+            ast.parse(fh.read())
+        print(f"OK: {f}")
+    except SyntaxError as e:
+        print(f"SYNTAX ERROR in {f}: {e}")
+        sys.exit(1)
+
+print("All files OK")

windows/archive_list.txt

@@ -0,0 +1,317 @@
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+ pyi-contents-directory _internal
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windows/build.spec

@@ -0,0 +1,369 @@
+# -*- mode: python ; coding: utf-8 -*-
+"""
+PyInstaller spec file for Kiwy Signage Player (Windows .exe)
+
+Build command (from windows/ directory):
+    pyinstaller build.spec --clean --noconfirm
+
+OR use the build script:
+    build_win.bat
+"""
+
+import os
+import sys
+from pathlib import Path
+
+# --- Paths -----------------------------------------------------------
+# This spec file is in windows/build.spec, so the project root is
+# always two levels up from this file's real location.
+# __file__ may not be available in PyInstaller spec context fallback to cwd.
+try:
+    _spec_dir = Path(__file__).resolve().parent
+except NameError:
+    _spec_dir = Path(os.getcwd()).resolve()
+# _spec_dir is now the absolute path to the windows/ directory
+BUILD_DIR = _spec_dir
+ROOT_DIR = BUILD_DIR.parent
+SRC_DIR = ROOT_DIR / 'src'
+CONFIG_DIR = ROOT_DIR / 'config'
+RESOURCES_DIR = CONFIG_DIR / 'resources'
+
+# --- Determine hidden imports that PyInstaller might miss -------------
+hidden_imports = [
+    # Kivy core modules
+    'kivy.core.window',
+    'kivy.core.video',
+    'kivy.core.audio',
+    'kivy.core.text',
+    'kivy.core.image',
+    'kivy.core.gl',
+    'kivy.core.camera',
+    'kivy.core.clipboard',
+    'kivy.core.spelling',
+    'kivy.core.text.markup',
+    'kivy.core.window.window_sdl2',
+    'kivy.core.image.img_sdl2',
+    'kivy.core.video.video_ffpyplayer',
+    'kivy.core.audio.audio_ffpyplayer',
+    # Kivy modules
+    'kivy.uix.video',
+    'kivy.uix.vkeyboard',
+    'kivy.uix.popup',
+    'kivy.uix.image',
+    'kivy.uix.button',
+    'kivy.uix.label',
+    'kivy.uix.textinput',
+    'kivy.uix.boxlayout',
+    'kivy.uix.floatlayout',
+    'kivy.uix.slider',
+    'kivy.uix.widget',
+    'kivy.uix.checkbox',
+    'kivy.graphics',
+    'kivy.graphics.texture',
+    'kivy.graphics.vertex_instructions',
+    'kivy.graphics.context_instructions',
+    'kivy.clock',
+    'kivy.loader',
+    'kivy.animation',
+    'kivy.lang',
+    'kivy.logger',
+    'kivy.config',
+    'kivy.properties',
+    'kivy.metrics',
+    'kivy.factory',
+    # Graphics providers
+    'kivy.graphics.opengl',
+    'kivy.graphics.opengl_utils',
+    'kivy.graphics.fbo',
+    'kivy.graphics.gl_instructions',
+    'kivy.graphics.stencil_instructions',
+    'kivy.graphics.scissor_instructions',
+    'kivy.graphics.buffer',
+    'kivy.graphics.vbo',
+    'kivy.graphics.shader',
+    'kivy.graphics.compiler',
+    # ffpyplayer
+    'ffpyplayer',
+    'ffpyplayer.player',
+    'ffpyplayer.pic',
+    'ffpyplayer.writer',
+    # Networking
+    'requests',
+    'aiohttp',
+    'urllib3',
+    'certifi',
+    'bcrypt',
+    # Platform
+    'ctypes',
+    'ctypes.wintypes',
+    'subprocess',
+    'shutil',
+    'glob',
+    'selectors',
+    'tempfile',
+    # Windows-specific
+    'cef_browser',
+    'webview2_browser',
+    'webview2_runtime',
+    'win32gui',
+    'win32con',
+    # Unified web-link controller (launch / verified visibility / interaction
+    # watcher / teardown) — imported by main.py and run_win.py
+    'weblink_session',
+    # Windows-native card reader (Raw Input API + LL-hook fallback)
+    'win_card_reader',
+]
+
+# Exclude Linux-only modules
+excluded_imports = [
+    'gi',  # GTK introspection (Linux)
+    'gi.repository',
+    'evdev',  # We inject a fake evdev module in run_win.py
+    # GStreamer — we use ffpyplayer, not GStreamer
+    'kivy.lib.gstplayer',
+    # cefpython3: keep only Python 3.12 .pyd, exclude other version .pyd files
+    'cefpython3.cefpython_py27',
+    'cefpython3.cefpython_py34',
+    'cefpython3.cefpython_py35',
+    'cefpython3.cefpython_py36',
+    'cefpython3.cefpython_py37',
+    'cefpython3.cefpython_py38',
+    'cefpython3.cefpython_py39',
+    'cefpython3.cefpython_py310',
+    'cefpython3.cefpython_py311',
+]
+
+# --- Application data files to bundle --------------------------------
+# Resources (icons, intro video, etc.)
+resources_data = []
+for item in RESOURCES_DIR.iterdir():
+    if item.is_file():
+        target_dir = 'config/resources'
+        resources_data.append((str(item), target_dir))
+
+# Config directory.
+#
+# app_config.json is deliberately NOT bundled. Including it shipped the
+# developer's own server_ip / screen_name inside the exe, so a fresh install
+# silently connected to the wrong server (or to a placeholder) instead of
+# asking the operator. The player now starts unconfigured, shows a notice after
+# the splash video and opens Settings to collect the real values, which are
+# then saved next to the .exe.
+config_data = []
+config_file = CONFIG_DIR / 'app_config.json'
+if config_file.exists():
+    print("[spec] app_config.json is NOT bundled (first-run setup collects it)")
+
+# --- Bundled web engines ---------------------------------------------
+# Embedded WebView2 (Edge) SDK: the managed assembly plus the native loader
+# DLL. The *runtime* itself is a Microsoft-shipped evergreen component and is
+# deliberately NOT bundled (that is the point of using WebView2 — no ~150 MB
+# Chromium payload inside our exe).
+webview2_data = []
+webview2_sdk = BUILD_DIR / 'webview2_sdk'
+if webview2_sdk.is_dir():
+    for item in webview2_sdk.iterdir():
+        if item.is_file():
+            webview2_data.append((str(item), 'webview2_sdk'))
+    print(f"[spec] Bundling {len(webview2_data)} WebView2 SDK file(s) from {webview2_sdk}")
+
+# WebView2 Runtime installer, so a machine that ships WITHOUT the Runtime can
+# install it on first start (see windows/webview2_runtime.py).
+#
+# Only the small bootstrapper (~1.7 MB) is bundled by default; it downloads the
+# Runtime from Microsoft. Dropping the ~203 MB offline standalone installer
+# into windows/webview2_runtime/ bundles it too, which is what you want for
+# machines with no internet — but it triples the exe size, so it is opt-in.
+webview2_runtime = BUILD_DIR / 'webview2_runtime'
+_bootstrap = webview2_runtime / 'MicrosoftEdgeWebview2Setup.exe'
+_standalone = webview2_runtime / 'MicrosoftEdgeWebView2RuntimeInstallerX64.exe'
+if _bootstrap.is_file():
+    webview2_data.append((str(_bootstrap), 'webview2_runtime'))
+    print(f"[spec] Bundling WebView2 Runtime bootstrapper ({_bootstrap.stat().st_size / 1024 / 1024:.1f} MB)")
+if _standalone.is_file():
+    webview2_data.append((str(_standalone), 'webview2_runtime'))
+    print(f"[spec] Bundling WebView2 offline standalone installer "
+          f"({_standalone.stat().st_size / 1024 / 1024:.0f} MB) — exe will be much larger")
+if not _bootstrap.is_file() and not _standalone.is_file():
+    print("=" * 70)
+    print("WARNING: no WebView2 Runtime installer in windows/webview2_runtime/.")
+    print("Machines without the Runtime cannot show web links (they fall back")
+    print("to the Chrome/Edge subprocess engine).")
+    print("=" * 70)
+else:
+    print("=" * 70)
+    print("WARNING: windows/webview2_sdk/ not found.")
+    print("Web links will fall back to the Chrome/Edge subprocess engine.")
+    print("=" * 70)
+
+# Source files - .kv file
+kv_file = SRC_DIR / 'signage_player.kv'
+kv_data = []
+if kv_file.exists():
+    kv_data.append((str(kv_file), '.'))
+
+# Bundle the entire src directory as a tree.
+#
+# EXCLUDE player_auth.json: it holds LIVE credentials (auth_code, player_id,
+# server_url). Bundling it means the frozen app starts up in _internal/ and
+# loads that snapshot as its auth state — so a freshly built exe boots
+# "already authenticated" against whatever server the file happened to name,
+# and plays a stale playlist. Auth must be created at runtime in the data dir
+# next to the .exe (see run_win.py `_patch_auth_paths`).
+source_tree = Tree(
+    str(SRC_DIR),
+    prefix='',
+    excludes=['*.pyc', '__pycache__', '*.ini', 'player_auth.json'],
+)
+
+# --- Collect binary DLLs from kivy_deps and ffpyplayer ----------------
+import importlib.util
+from pathlib import Path as _Path
+
+
+def _site_packages_dir(package_path):
+    """Climb up from a package's __init__.py to its site-packages dir."""
+    d = _Path(package_path).parent
+    while d.name != 'site-packages' and d.parent != d:
+        d = d.parent
+    return d
+
+
+def _find_share_dlls(package_name, share_name=None):
+    """Find .dll files under venv_root/share/<share_name>/.
+
+    kivy_deps.sdl2/angle/glew and ffpyplayer install their DLLs into
+    <venv>/share/<pkg>/... NOT inside the package dir. The share folder is
+    named after the *short* dep name (e.g. 'sdl2', 'angle', 'glew'), not the
+    dotted package name ('kivy_deps.sdl2'), so pass share_name explicitly.
+    """
+    if share_name is None:
+        share_name = package_name
+    spec = importlib.util.find_spec(package_name)
+    if spec is None or not spec.origin:
+        return []
+    sp = _site_packages_dir(spec.origin)
+    # Climb from site-packages up until we find a sibling 'share' dir
+    # (site-packages -> Lib -> venv, where venv/share lives).
+    d = sp
+    while d.parent != d:
+        if (d.parent / 'share').is_dir():
+            share = d.parent / 'share' / share_name
+            break
+        d = d.parent
+    else:
+        return []
+    if not share.is_dir():
+        return []
+    results = []
+    for root, dirs, files in os.walk(share):
+        for f in files:
+            if f.endswith('.dll'):
+                results.append((os.path.join(root, f), '.'))
+    return results
+
+
+def _find_ffpyplayer_bins():
+    """Return ffpyplayer's own dependency DLL dirs (FFmpeg + bundled SDL).
+
+    ffpyplayer ships a `dep_bins` list that already points at the correct
+    share/ffpyplayer/ffmpeg/bin and share/ffpyplayer/sdl/bin directories.
+    """
+    try:
+        import ffpyplayer
+        bins = getattr(ffpyplayer, 'dep_bins', None)
+        if not bins:
+            return []
+        results = []
+        for b in bins:
+            bpath = _Path(b)
+            if bpath.is_dir():
+                for f in bpath.glob('*.dll'):
+                    results.append((str(f), '.'))
+        return results
+    except Exception:
+        return []
+
+
+# SDL2 / ANGLE / GLEW DLLs (kivy_deps share dirs)
+_sdl2_dlls = _find_share_dlls('kivy_deps.sdl2', 'sdl2')
+_angle_dlls = _find_share_dlls('kivy_deps.angle', 'angle')
+_glew_dlls = _find_share_dlls('kivy_deps.glew', 'glew')
+
+# ffpyplayer FFmpeg + bundled SDL DLLs (via dep_bins)
+_ffpy_dlls = _find_ffpyplayer_bins()
+
+_all_binaries = _sdl2_dlls + _angle_dlls + _glew_dlls + _ffpy_dlls
+
+if not _all_binaries:
+    print("=" * 70)
+    print("WARNING: No Kivy/ffpyplayer DLLs found via share/ directories.")
+    print("PyInstaller may still auto-detect them, but if the .exe")
+    print("fails with 'SDL2.dll not found' or similar, you will need")
+    print("to manually add the DLL paths to the spec file.")
+    print("=" * 70)
+else:
+    print(f"[spec] Bundling {len(_all_binaries)} DLLs:")
+    for _p, _t in sorted(_all_binaries):
+        print(f"  {_Path(_p).name}  <-  {_p}")
+
+# --- Build the .exe --------------------------------------------------
+a = Analysis(
+    ['run_win.py'],                         # Entry point (relative to this spec)
+    pathex=[str(BUILD_DIR), str(SRC_DIR)],  # Where to find modules
+    binaries=_all_binaries,
+    datas=resources_data + config_data + kv_data + webview2_data,
+    hiddenimports=hidden_imports,
+    hookspath=[],
+    hooksconfig={},
+    runtime_hooks=[str(BUILD_DIR / 'pyi_runtime_hook.py')],
+    excludes=excluded_imports,
+    noarchive=False,
+    module_collection_mode={
+        'kivy': 'pyz',
+        'kivy.core': 'pyz',
+        'kivy.uix': 'pyz',
+        'kivy.graphics': 'pyz',
+    },
+)
+
+# Add the source tree (main.py, etc.)
+a.datas += source_tree
+
+pyz = PYZ(a.pure)
+
+exe = EXE(
+    pyz,
+    a.scripts,
+    a.binaries,
+    a.zipfiles,
+    a.datas,
+    [],
+    name='KiwySignagePlayer',
+    debug=False,
+    bootloader_ignore_signals=False,
+    strip=False,
+    upx=True,
+    upx_exclude=[],
+    runtime_tmpdir=None,
+    console=True,           # Show console for debugging startup errors
+    disable_windowed_traceback=False,
+    argv_emulation=False,
+    target_arch=None,
+    codesign_identity=None,
+    entitlements_file=None,
+    icon=str(BUILD_DIR / 'app_icon.ico') if (BUILD_DIR / 'app_icon.ico').exists() else None,
+    version=str(BUILD_DIR / 'version_info.txt') if (BUILD_DIR / 'version_info.txt').exists() else None,
+)
+
+# --- COLLECT everything into a single folder -------------------------
+coll = COLLECT(
+    exe,
+    a.binaries,
+    a.zipfiles,
+    a.datas,
+    strip=False,
+    upx=True,
+    upx_exclude=[],
+    name='KiwySignagePlayer',
+)

windows/build_last.txt

@@ -0,0 +1,5 @@
+  libtiff-5.dll  <-  C:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\venv\share\sdl2\bin\libtiff-5.dll
+  libwavpack-1.dll  <-  C:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\venv\share\sdl2\bin\libwavpack-1.dll
+  libwebp-7.dll  <-  C:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\venv\share\sdl2\bin\libwebp-7.dll
+  libwebpdemux-2.dll  <-  C:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\venv\share\sdl2\bin\libwebpdemux-2.dll
+  libxmp.dll  <-  C:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\venv\share\sdl2\bin\libxmp.dll

windows/build_win.bat

@@ -0,0 +1,158 @@
+@echo off
+REM =====================================================================
+REM Kiwy Signage Player - Windows Build Script
+REM =====================================================================
+REM This script builds a standalone Windows .exe using PyInstaller.
+REM
+REM Prerequisites:
+REM   1. Python 3.10+ installed (with "Add to PATH" checked)
+REM   2. Visual C++ Redistributable (for ffpyplayer)
+REM   3. FFmpeg binaries in PATH (optional, for video codec support)
+REM
+REM Steps:
+REM   1. Run this script from the project root or the windows\ folder
+REM   2. The .exe will be created in windows\dist\KiwySignagePlayer\
+REM =====================================================================
+
+setlocal enabledelayedexpansion
+
+cd /d "%~dp0"
+
+echo ============================================
+echo  Kiwy Signage Player - Windows Build
+echo ============================================
+echo.
+
+REM ---- Check Python ----
+where python >nul 2>&1
+if %ERRORLEVEL% neq 0 (
+    echo [ERROR] Python not found! Please install Python 3.10+ and add it to PATH.
+    pause
+    exit /b 1
+)
+
+echo [INFO] Using Python:
+python --version
+
+REM ---- Create virtual environment (if not exists) ----
+if not exist "venv\Scripts\python.exe" (
+    echo.
+    echo [STEP] Creating virtual environment...
+    python -m venv venv
+    if %ERRORLEVEL% neq 0 (
+        echo [ERROR] Failed to create virtual environment.
+        pause
+        exit /b 1
+    )
+) else (
+    echo [INFO] Virtual environment already exists.
+)
+
+REM ---- Activate virtual environment ----
+call venv\Scripts\activate.bat
+
+REM ---- Install/upgrade pip ----
+echo.
+echo [STEP] Upgrading pip...
+python -m pip install --upgrade pip
+
+REM ---- Install dependencies ----
+echo.
+echo [STEP] Installing Windows dependencies...
+pip install -r requirements_win.txt
+if %ERRORLEVEL% neq 0 (
+    echo [ERROR] Failed to install dependencies.
+    pause
+    exit /b 1
+)
+
+REM ---- Verify Kivy installation ----
+echo.
+echo [STEP] Verifying Kivy installation...
+python -c "import kivy; print(f'Kivy {kivy.__version__}')" 2>&1
+if %ERRORLEVEL% neq 0 (
+    echo [WARNING] Kivy check failed. Build may still work but test carefully.
+)
+
+REM ---- Check PyInstaller ----
+echo.
+echo [STEP] Verifying PyInstaller...
+python -c "import PyInstaller; print(f'PyInstaller {PyInstaller.__version__}')" 2>&1
+if %ERRORLEVEL% neq 0 (
+    echo [ERROR] PyInstaller not found.
+    pause
+    exit /b 1
+)
+
+REM ---- Create app icon (from PNG if possible) ----
+echo.
+echo [STEP] Checking for app icon...
+if not exist "..\config\resources\app_icon.ico" (
+    echo [INFO] No .ico icon found. Will use default PyInstaller icon.
+    echo [INFO] To add a custom icon, place app_icon.ico in config\resources\
+)
+
+REM ---- Run PyInstaller ----
+echo.
+echo [STEP] Building executable with PyInstaller...
+echo This may take several minutes. Please wait...
+echo.
+
+pyinstaller build.spec --clean --noconfirm
+if %ERRORLEVEL% neq 0 (
+    echo.
+    echo [ERROR] PyInstaller build failed!
+    echo Check the output above for error details.
+    pause
+    exit /b 1
+)
+
+REM ---- Optional code signing ----------------------------------------
+REM For production PCs with Smart App Control ON, the exe MUST be signed
+REM by a cert from a reputable public CA. If you have a .pfx, put its path
+REM in the env var KIWY_SIGN_PFX (and optionally KIWY_SIGN_PFX_PASSWORD),
+REM or drop a pfx named "kiwy_signing.pfx" in this folder. The build will
+REM then auto-sign via sign_exe.ps1.
+echo.
+echo [STEP] Checking for code-signing certificate...
+
+set "SIGN_PFX=%KIWY_SIGN_PFX%"
+if not defined SIGN_PFX if exist "%~dp0kiwy_signing.pfx" set "SIGN_PFX=%~dp0kiwy_signing.pfx"
+
+if defined SIGN_PFX (
+    echo [INFO ] Code-signing cert found: %SIGN_PFX%
+    if defined KIWY_SIGN_PFX_PASSWORD (
+        powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0sign_exe.ps1" -CertPath "%SIGN_PFX%" -CertPassword "%KIWY_SIGN_PFX_PASSWORD%"
+    ) else (
+        powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0sign_exe.ps1" -CertPath "%SIGN_PFX%"
+    )
+    if not "!ERRORLEVEL!"=="0" (
+        echo [WARNING] Signing failed or signtool missing - the exe is NOT signed.
+        echo           Smart App Control machines will still block it.
+    ) else (
+        echo [OK] Executable signed successfully.
+    )
+) else (
+    echo [INFO ] No signing cert found - skipping signing.
+    echo [INFO ] To sign automatically, set KIWY_SIGN_PFX to your .pfx path
+    echo        or place "kiwy_signing.pfx" in this folder.
+    echo [INFO ] NOTE: Unsigned exe will be BLOCKED on PCs with Smart App Control ON.
+)
+
+REM ---- Success ----
+echo.
+echo ============================================
+echo  BUILD COMPLETE!
+echo ============================================
+echo.
+echo Output: %~dp0dist\KiwySignagePlayer\
+echo.
+echo The executable is:
+echo   %~dp0dist\KiwySignagePlayer\KiwySignagePlayer.exe
+echo.
+echo To run: Double-click KiwySignagePlayer.exe
+echo.
+echo Note: The first run may take a while as Windows Defender
+echo scans the executable. This is normal.
+echo.
+pause

windows/cef_browser.py

@@ -0,0 +1,192 @@
+"""
+cef_browser.py v2 — Embedded Chromium INSIDE Kivy's SDL2 window
+
+v1 created a separate Win32 window (same as external Chrome).
+v2 creates CEF as a **child window** of Kivy's SDL_app window:
+  - No separate taskbar entry
+  - No z-order fighting
+  - No desktop flash
+  - CEF message loop pumped via Kivy Clock (main thread)
+"""
+
+import ctypes
+import os
+from pathlib import Path
+
+try:
+    from cefpython3 import cefpython as cef
+    CEF_AVAILABLE = True
+except ImportError:
+    CEF_AVAILABLE = False
+
+WS_CHILD = 0x40000000
+WS_VISIBLE = 0x10000000
+WS_CLIPSIBLINGS = 0x04000000
+WS_CLIPCHILDREN = 0x02000000
+SW_HIDE = 0
+SW_SHOWNORMAL = 1
+
+
+class CefBrowser:
+    def __init__(self):
+        self._browser = None
+        self._cef_initialized = False
+        self._child_hwnd = None
+        self._kivy_hwnd = None
+        self._clock_event = None
+        self._showing = False
+
+    # ── Public API ──────────────────────────────────────────────────
+
+    def show(self, url):
+        if not CEF_AVAILABLE:
+            return False
+        if not self._cef_initialized:
+            self._init_cef()
+        if self._browser is not None:
+            self._browser.Navigate(url)
+            self._show_in_kivy()
+            return True
+        return self._create_embedded(url)
+
+    def hide(self):
+        self._showing = False
+        if self._clock_event is not None:
+            try:
+                from kivy.clock import Clock
+                Clock.unschedule(self._clock_event)
+            except Exception:
+                pass
+            self._clock_event = None
+        if self._child_hwnd:
+            try:
+                ctypes.windll.user32.ShowWindow(self._child_hwnd, SW_HIDE)
+            except Exception:
+                pass
+        if self._browser is not None:
+            try:
+                self._browser.CloseBrowser(True)
+            except Exception:
+                pass
+            self._browser = None
+        if self._child_hwnd:
+            try:
+                ctypes.windll.user32.DestroyWindow(self._child_hwnd)
+            except Exception:
+                pass
+            self._child_hwnd = None
+
+    def shutdown(self):
+        self.hide()
+        if self._cef_initialized:
+            try:
+                cef.Shutdown()
+            except Exception:
+                pass
+            self._cef_initialized = False
+
+    def navigate(self, url):
+        if self._browser is not None:
+            self._browser.Navigate(url)
+
+    def is_showing(self):
+        return self._showing
+
+    def resize(self, width, height):
+        """Called when Kivy window resizes — repositions CEF child."""
+        if self._child_hwnd:
+            ctypes.windll.user32.SetWindowPos(
+                self._child_hwnd, 0, 0, 0, width, height, 0x0004
+            )
+            if self._browser:
+                self._browser.SetBounds(0, 0, width, height)
+
+    # ── Internal ────────────────────────────────────────────────────
+
+    def _init_cef(self):
+        settings = {
+            "multi_threaded_message_loop": False,
+            "single_process": True,
+            "log_severity": cef.LOGSEVERITY_WARNING,
+            "user_agent": "Mozilla/5.0 KiwySignage/1.0",
+            "cache_path": str(
+                Path(os.environ.get("KIWY_DATA_DIR", ".")) / ".cef_cache"
+            ),
+        }
+        cef.Initialize(settings=settings)
+        self._cef_initialized = True
+
+    def _get_kivy_hwnd(self):
+        if self._kivy_hwnd is not None:
+            return self._kivy_hwnd
+        try:
+            import win32gui
+            hwnd = win32gui.FindWindow("SDL_app", None)
+            if hwnd:
+                self._kivy_hwnd = hwnd
+                return hwnd
+        except Exception:
+            pass
+        return None
+
+    def _create_embedded(self, url):
+        kivy_hwnd = self._get_kivy_hwnd()
+        if not kivy_hwnd:
+            return False
+
+        user32 = ctypes.windll.user32
+        rect = (ctypes.c_long * 4)()
+        user32.GetClientRect(kivy_hwnd, ctypes.byref(rect))
+        w, h = rect[2], rect[3]
+
+        hinstance = ctypes.windll.kernel32.GetModuleHandleW(None)
+        self._child_hwnd = user32.CreateWindowExW(
+            0, b'#32770', b'',
+            WS_CHILD | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
+            0, 0, w, h, kivy_hwnd, 0, hinstance, 0,
+        )
+        if not self._child_hwnd:
+            return False
+
+        winfo = cef.WindowInfo()
+        winfo.SetAsChild(self._child_hwnd, [0, 0, w, h])
+        self._browser = cef.CreateBrowserSync(
+            window_info=winfo,
+            settings={"background_color": 0x00000000},
+            url=url,
+        )
+        self._showing = True
+        self._show_in_kivy()
+        self._start_clock_pump()
+        return True
+
+    def _show_in_kivy(self):
+        if not self._child_hwnd:
+            return
+        kivy_hwnd = self._get_kivy_hwnd()
+        if kivy_hwnd:
+            user32 = ctypes.windll.user32
+            rect = (ctypes.c_long * 4)()
+            user32.GetClientRect(kivy_hwnd, ctypes.byref(rect))
+            user32.SetWindowPos(
+                self._child_hwnd, 0, 0, 0, rect[2], rect[3], 0x0004
+            )
+        ctypes.windll.user32.ShowWindow(self._child_hwnd, SW_SHOWNORMAL)
+        self._showing = True
+
+    def _start_clock_pump(self):
+        if self._clock_event is not None:
+            return
+
+        def _pump(dt):
+            if self._cef_initialized:
+                try:
+                    cef.MessageLoopWork()
+                except Exception:
+                    pass
+            if self._showing:
+                from kivy.clock import Clock
+                self._clock_event = Clock.schedule_once(_pump, 0.01)
+
+        from kivy.clock import Clock
+        self._clock_event = Clock.schedule_once(_pump, 0)

windows/create_self_signed_cert.ps1

@@ -0,0 +1,110 @@
+<#
+================================================================================
+ Kiwy Signage Player - Self-Signed Certificate Creator
+================================================================================
+ Creates a self-signed code-signing certificate for DEV/TEST machines.
+
+ IMPORTANT (please read before running):
+   A self-signed certificate, even when trusted locally, does NOT satisfy
+   Smart App Control (SAC). SAC only trusts reputable public CAs. This script
+   is therefore ONLY for development / test PCs where you have admin rights
+   and where SAC is either OFF or the app is run with SAC disabled.
+
+   For production PCs (SAC ON, no admin), you MUST buy a code-signing cert
+   from a public CA (Sectigo/SSL.com/DigiCert/GlobalSign) and use
+   sign_exe.ps1 with that .pfx.
+
+ What this does:
+   1. Creates a self-signed code-signing cert in the Current User store
+      (never expires, exportable so you can move it to the build machine).
+   2. Exports it to a .pfx (password-protected) so build_win.bat can sign.
+   3. Asks if you want to trust it on THIS machine (installs to Root + Trusted
+      Publisher + Trusted People) so the player runs without SmartScreen/
+      Defender prompts on this dev PC.
+
+ Usage (run as Administrator):
+   .\create_self_signed_cert.ps1
+   .\create_self_signed_cert.ps1 -CertName "Kiwy Signage Dev" -PfxPassword "ChangeMe!1" -ExportPath "C:\certs\kiwy_dev.pfx"
+================================================================================
+#>
+[CmdletBinding()]
+param(
+    [string]$CertName = 'Kiwy Signage Player (Dev)',
+    [string]$Subject = 'CN=Kiwy Signage Player (Dev)',
+    [string]$PfxPassword = 'KiwySignage2026!',
+    [string]$ExportPath = (Join-Path $PSScriptRoot 'kiwy_dev_signing.pfx'),
+    [switch]$SkipTrust
+)
+
+$ErrorActionPreference = 'Stop'
+Set-Location $PSScriptRoot
+
+# ── 1. Create the self-signed code-signing certificate ──────────────
+Write-Host "[STEP] Creating self-signed code-signing certificate..." -ForegroundColor Cyan
+
+$cert = New-SelfSignedCertificate `
+    -Subject $Subject `
+    -FriendlyName $CertName `
+    -Type CodeSigningCert `
+    -CertStoreLocation 'Cert:\CurrentUser\My' `
+    -KeyExportPolicy Exportable `
+    -KeyAlgorithm RSA `
+    -KeyLength 2048 `
+    -NotAfter (Get-Date).AddYears(10)
+
+if (-not $cert) {
+    Write-Host "[ERROR] Failed to create certificate." -ForegroundColor Red
+    exit 1
+}
+Write-Host "[OK   ] Created cert: $($cert.Subject) thumbprint=$($cert.Thumbprint)" -ForegroundColor Green
+
+# ── 2. Export to PFX ─────────────────────────────────────────────────
+Write-Host "[STEP] Exporting to PFX: $ExportPath" -ForegroundColor Cyan
+$securePwd = ConvertTo-SecureString -String $PfxPassword -Force -AsPlainText
+try {
+    Export-PfxCertificate -Cert $cert -FilePath $ExportPath -Password $securePwd -Force | Out-Null
+    Write-Host "[OK   ] PFX written: $ExportPath" -ForegroundColor Green
+} catch {
+    Write-Host "[WARN ] Could not export PFX (still usable from cert store): $($_.Exception.Message)" -ForegroundColor Yellow
+}
+
+# ── 3. Trust it on THIS machine (Root + Trusted Publisher) ───────────
+if (-not $SkipTrust) {
+    Write-Host "[STEP] Installing to Trusted Root + Trusted Publisher (requires admin)..." -ForegroundColor Cyan
+    try {
+        $rootStore = New-Object System.Security.Cryptography.X509Certificates.X509Store(
+            'Root', 'CurrentUser')
+        $rootStore.Open('ReadWrite')
+        $rootStore.Add($cert)
+        $rootStore.Close()
+
+        $pubStore = New-Object System.Security.Cryptography.X509Certificates.X509Store(
+            'TrustedPublisher', 'CurrentUser')
+        $pubStore.Open('ReadWrite')
+        $pubStore.Add($cert)
+        $pubStore.Close()
+
+        $peopleStore = New-Object System.Security.Cryptography.X509Certificates.X509Store(
+            'TrustedPeople', 'CurrentUser')
+        $peopleStore.Open('ReadWrite')
+        $peopleStore.Add($cert)
+        $peopleStore.Close()
+
+        Write-Host "[OK   ] Certificate trusted on this machine." -ForegroundColor Green
+    } catch {
+        Write-Host "[WARN ] Trust install failed (run as Administrator): $($_.Exception.Message)" -ForegroundColor Yellow
+    }
+}
+
+Write-Host ""
+Write-Host "================ RESULT ================" -ForegroundColor Green
+Write-Host "Cert  : $($cert.Subject)"
+Write-Host "Thumb : $($cert.Thumbprint)"
+Write-Host "PFX   : $ExportPath  (password: $PfxPassword)"
+Write-Host ""
+Write-Host "To sign the exe with this cert:"
+Write-Host "   .\sign_exe.ps1 -CertPath `"$ExportPath`" -CertPassword `"$PfxPassword`""
+Write-Host ""
+Write-Host "REMINDER: This self-signed cert is for DEV ONLY. Production PCs"
+Write-Host "with Smart App Control ON need a cert from a public CA."
+Write-Host "========================================" -ForegroundColor Green

windows/development-track.md

@@ -0,0 +1,317 @@
+# 🧪 Development Track — Kiwy Signage Player (Windows Edition)
+
+> This file tracks every change, bug fix, tested solution, build info, and
+> pending issues for the Windows port. Read this FIRST before starting any
+> debugging or coding session.
+
+---
+
+## 📅 Current Session — 2026-08-07
+
+| Field | Value |
+|-------|-------|
+| **Branch** | `Windows-Player` |
+| **Python** | 3.12.9 — `windows\venv\` (250 MB, all deps installed) |
+| **Kivy** | 2.3.1 |
+| **PyInstaller** | 6.21.0 |
+| **Last .exe build** | 2026-08-07 08:23 — `windows\dist\KiwySignagePlayer\KiwySignagePlayer.exe` (98.8 MB) |
+| **Build command** | `.\venv\Scripts\python.exe -m PyInstaller build.spec --clean --noconfirm` |
+
+### Overnight soak test findings (2026-08-07 morning)
+
+- **Symptom:** player froze on the last video widget (never advanced past
+  `video_loaded`); heartbeat stopped; 7 leaked `msedge.exe` processes left
+  running in the background.
+- **Root cause (two compounding bugs in `run_win.py`):**
+  1. **Leaked browser + instant-exit handoff.** A previously leaked Chrome/Edge
+     process held the `.kiosk-profile` lock. The next weblink launch handed
+     the URL to that leaked instance and **exited in ~2s** (`07:04:57` launch →
+     `07:04:59 next_media_called`). The watchdog advanced instantly, so the
+     weblink never showed AND the leaked browser window was never killed →
+     `msedge.exe` processes accumulated overnight.
+  2. **Main-thread freeze.** The focus keeper ran heavy Win32 work
+     (`EnumWindows` + `AttachThreadInput` + `SetForegroundWindow` + `SendInput`)
+     synchronously on the Kivy thread every second. With leaked Edge windows
+     fighting back, this wedged the event loop → video never advanced, heartbeat
+     stopped (`08-07 07:09`).
+- **Fix (in `run_win.py`, rebuilt 08:23):**
+  1. New `_windows_kill_browsers_on_profile()` — scans `chrome/msedge/chromium`
+     command lines (WMIC, PowerShell fallback), taskkills any browser holding
+     the `.kiosk-profile` lock. Called **before every weblink launch**.
+  2. Watchdog now has `MIN_ALIVE_BEFORE_EARLY_ADVANCE = 8s` — an instant
+     (~2s) handoff exit no longer advances/skips the weblink.
+  3. `_bring_kivy_to_front(async_ok=True)` runs the heavy Win32 bring-to-front
+     on a **background worker thread** guarded by a lock, so the Kivy main
+     thread is never blocked. Synchronous `async_ok=False` still available for
+     explicit transitions.
+
+### 📋 Cross-platform audit — Linux commands → Windows handling
+
+Every Linux-only command in `src/` was cross-referenced against the patches
+in `windows/run_win.py`. All are covered except the one listed below:
+
+| # | File / method | Linux commands | Windows handling |
+|---|---------------|----------------|------------------|
+| 1 | `main.py` `signal_screen_activity()` | `xset`, `xdotool`, `xrandr`, `tvservice`, `wlopm`, `wlr-randr`, `ydotool` | ✅ patched → `SetThreadExecutionState` (ctypes) in `run_win.py` |
+| 2 | `main.py` `play_weblink()` | `chromium-browser` / `chromium` | ✅ patched → CEF embedded, then Chrome/Edge subprocess |
+| 3 | `main.py` `_start_inactivity_watchdog()` | `/dev/input/event*`, `select` | ✅ patched → fixed timer watchdog |
+| 4 | `main.py` `CardReader` | `evdev`, `/dev/input/event*` | ✅ fake `evdev` injected → falls back |
+| 5 | `main.py` `SettingsPopup.test_connection` | `/tmp/temp_auth_test.json` | ✅ patched → `tempfile.gettempdir()` |
+| 6 | `main.py` weblink kill/prewarm wrappers | `proc.terminate()` only | ✅ patched → `taskkill /F /T` + `_Win32Overlay` |
+| 7 | `network_monitor.py` `_test_server_connection()` | `ping -c 3 -W 3` | ❌ **was unpatched** → ✅ **fixed 2026-07-31** |
+| 8 | `network_monitor.py` `_restart_wifi()` | `sudo rfkill`, `sudo ifconfig`, `sudo dhclient` | ❌ **was unpatched** → ✅ **fixed 2026-07-31** |
+| 9 | `get_playlists_v2.py`, `player_auth.py`, `ssl_utils.py`, `edit_popup.py`, `keyboard_widget.py` | none | ✅ no Linux commands |
+
+---
+
+## 🐛 Bug Tracker
+
+### [BUG-010] NetworkMonitor uses Linux-only ping + rfkill commands
+- **Status:** ✅ **Fixed — 2026-07-31**
+- **Symptom:** `network_monitor.py` ran `ping -c 3 -W 3` (Linux flags) and on
+  connection failure invoked `sudo rfkill` / `sudo ifconfig wlan0` /
+  `sudo dhclient` — all fail or hang on Windows (`sudo` isn't even present).
+- **Root cause:** This module was missed when the other Linux paths were
+  patched in `run_win.py`.
+- **Fix:** Made `network_monitor.py` self-contained cross-platform:
+  1. Added `IS_WINDOWS = platform.system() == 'Windows'`
+  2. `_test_server_connection()` uses `ping -n 3 -w 3000` on Windows
+  3. `_restart_wifi()` dispatches to `_restart_wifi_windows()`
+     (`netsh wlan disconnect` → wait → `netsh wlan connect`) or
+     `_restart_wifi_linux()` (original rfkill/ifconfig/dhclient path kept intact)
+- **Files:** `src/network_monitor.py`
+- **Test:** Windows `ping -n 3 -w 3000 localhost` returns 0; AST parse OK.
+
+---
+
+### [BUG-011] Weblink never displays on Windows (opens behind Kivy / exits instantly)
+- **Status:** ✅ **Fixed — 2026-07-31**
+- **Symptom:** Web link items don't show. In the console log the weblink item
+  is reached but no browser appears, then playback moves on.
+- **Root causes (two compounding):**
+  1. **Chrome re-used an existing instance.** `subprocess.Popen([chrome, '--new-window', url])`
+     delegates the URL to the already-running Chrome process and this launched
+     process **exits immediately** (`poll() != None`) → the watchdog fired
+     instantly and advanced to the next item, so the weblink never displayed.
+  2. **Overlay-hide raised Kivy over Chrome.** `_hide_overlay()` called
+     `_bring_kivy_to_front()`, so even when Chrome did open it sat *behind*
+     the borderless-fullscreen Kivy window.
+- **Fix (in `windows/run_win.py`):**
+  1. Launch Chrome/Edge with a **dedicated `--user-data-dir`** (`<data>/.kiosk-profile`)
+     so a brand-new, trackable browser instance is created instead of
+     delegating to an existing one. Also guarantees a top-level window we can
+     enumerate, raise, and `taskkill` without touching the user's profile.
+  2. `_hide_overlay()` now calls **`_bring_chrome_to_front(proc)`** (new helper
+     that enumerates `Chrome_WidgetWin_1/0` windows owned by the launched PID)
+     instead of raising Kivy.
+- **Update (2026-07-31 15:42):** added **`--kiosk`** flag to the weblink launch
+  args so the browser opens in true kiosk mode (no UI/chrome, locks to screen).
+  Safe with the dedicated `--user-data-dir` — does not affect the user's normal
+  browser session.
+- **Update (2026-07-31 16:04):** replaced the fixed 1.0s overlay-hide timer with
+  **adaptive polling** (`_hide_overlay_when_chrome_ready`). The black overlay now
+  stays up until Chrome's window is actually detected on screen
+  (`_find_chrome_hwnd`), so the host desktop is never exposed during cold
+  starts / slow disk / GPU init. Falls back to Kivy after a 6s timeout.
+- **Update (2026-07-31 16:19):** added a **persistent `_Win32Backdrop`** — a
+  fullscreen black window created at player startup (`_Win32Backdrop.show()`)
+  placed at `HWND_BOTTOM` (below Kivy & the kiosk browser, above the desktop),
+  destroyed only on clean exit. Any browser load/unload gap now reveals clean
+  black instead of the host desktop.
+- **Test:** exe rebuilt 2026-07-31 16:19; DLL set intact (28 DLLs incl. FFmpeg).
+
+### [BUG-012] Next widget never comes to foreground after weblink ends
+- **Status:** ✅ **Fixed — 2026-07-31**
+- **Symptom:** After a weblink finishes, the next media/widget renders but the
+  Kivy window stays behind (or the window focus is lost) — user sees the wrong
+  window / frozen view.
+- **Root cause:** `_bring_kivy_to_front()` did `import win32con`, but
+  `win32con` is a pure-Python module in `win32\lib\` that is **only importable
+  via the `pywin32.pth` file**. `.pth` files are ignored in frozen PyInstaller
+  apps, so `win32con` was never bundled (confirmed via `pyi-archive_viewer` —
+  only `win32gui.pyd` / `win32api.pyd` / `win32process.pyd` present). The
+  `import win32con` threw, the whole function silently fell back to
+  `Window.raise_window()`, and the Kivy window was never reliably raised.
+- **Fix (in `windows/run_win.py`):**
+  1. Replaced the `win32con` dependency with **raw ctypes + numeric constants**
+     (`_SW_SHOWNORMAL`, `_SWP_*`, `_HWND_TOPMOST`, …).
+  2. New `_bring_hwnd_to_front(hwnd)` — ctypes-only `SetForegroundWindow` with
+     `AttachThreadInput` foreground-lock bypass + `IsIconic` restore + topmost
+     flash.
+  3. `_bring_kivy_to_front()` now uses `_find_kivy_hwnd()` (win32gui.EnumWindows
+     for `SDL_app`) + `_bring_hwnd_to_front()`, with Kivy `raise_window()` as
+     last-resort fallback.
+- **Test:** exe rebuilt; no `win32con` import remains in `run_win.py`.
+
+---
+
+### [BUG-001] RecursionError: play_current_media ↔ restart_playlist
+- **Status:** ✅ Fixed 2026-07-24
+- **Symptom:** Pressing "Restart Player" in settings with empty playlist causes
+  infinite recursion: `play_current_media → restart_playlist → play_current_media → ...`
+- **Fix:** Added empty-playlist guard in both `play_current_media()` and
+  `restart_playlist()` → they return early instead of calling each other.
+- **Files:** `src/main.py` — lines ~1304 and ~2073
+- **Test:** Verified no Python syntax errors via `ast.parse`.
+
+### [BUG-002] Settings fields cut off on small screens
+- **Status:** ✅ Fixed 2026-07-24
+- **Symptom:** "Screen Name", "Quickconnect" and other fields at the top of
+  the settings popup are invisible on smaller resolutions because content
+  overflows the popup.
+- **Fix:** Wrapped settings content in a `ScrollView`. Moved "Save & Close" /
+  "Cancel" buttons outside the scroll (always visible). Reduced row heights.
+- **Files:** `src/signage_player.kv` — `<SettingsPopup@Popup>` block
+
+### [BUG-003] Chromium not fullscreen on Windows
+- **Status:** ✅ Fixed 2026-07-24
+- **Symptom:** Web links open in a small window instead of fullscreen.
+- **Fix:** Changed launch args from `--kiosk` to `--start-maximized --app=URL`
+  + explicit `--window-size=WxH`. `--kiosk` uses Wayland exclusive-fullscreen
+  protocol which doesn't work on Windows.
+- **Tested rejected solutions:**
+  - ❌ `--kiosk` alone → small window, no fullscreen
+  - ❌ `--start-fullscreen` alone → not reliable
+  - ✅ `--start-maximized --app=URL --window-size=...` → works
+- **Files:** `windows/run_win.py` — `_windows_play_weblink()`
+
+### [BUG-004] Desktop flash when switching between Chromium and Kivy
+- **Status:** ✅ Fixed 2026-07-24
+- **Symptom:** When Chrome closes, the desktop is briefly visible before Kivy
+  reappears. Also when Chrome opens, there's a flash.
+- **Fix:** Added `_Win32Overlay` class — a fullscreen black Win32 window that
+  covers the screen during transitions. Shown BEFORE closing Chrome / opening
+  Chrome, hidden AFTER Kivy is ready.
+- **Tested rejected solutions:**
+  - ❌ `Window.raise_window()` alone → still shows flash
+  - ✅ Win32 black overlay → smooth masking
+- **Files:** `windows/run_win.py` — `_Win32Overlay` class
+
+### [BUG-005] Chrome processes linger after closing weblink
+- **Status:** ✅ Fixed 2026-07-24
+- **Symptom:** After a weblink item ends, Chrome child processes (GPU,
+  renderer) remain running → blank windows accumulate.
+- **Fix:** Use `taskkill /F /T /PID <pid>` to kill the entire process tree.
+- **Tested rejected solutions:**
+  - ❌ `proc.terminate()` → leaves children running
+  - ❌ `proc.kill()` → same problem
+  - ✅ `taskkill /F /T` → kills everything
+- **Files:** `windows/run_win.py` — `_windows_kill_process_tree()`
+
+### [BUG-007] Video plays behind Chromium on weblink→media transition
+- **Status:** ✅ **Fixed — 2026-07-26 (final)**
+- **Symptom:** When a weblink ends and the next media starts, the media plays
+  *behind* Chromium. Audio is heard but user sees Chrome.
+- **Root cause (Windows):** Linux renders Kivy widget UNDER Chromium → closes
+  Chrome → widget visible. On Windows Chrome stays ON TOP.
+  `Window.raise_window()` is unreliable. Three compounding issues:
+  1. `KivyWindow.minimize()` made Kivy impossible to bring back reliably
+  2. `_windows_play_current_media` killed the browser but never restored
+     `content_area.opacity = 1`, so next widget rendered invisible
+  3. `_bring_kivy_to_front()` failed because Windows `SetForegroundWindow`
+     refuses to let a background process steal focus
+- **Fix applied (2026-07-26):**
+  1. **Removed `KivyWindow.minimize()`** in `_windows_play_weblink()` — Kivy
+     stays visible behind the overlay instead of being hidden
+  2. **Restored `content_area.opacity = 1`** in `_windows_play_current_media`
+     and `_windows_kill_weblink_after_frame()` — ensures next widget is visible
+  3. **`_bring_kivy_to_front()`** — added `AttachThreadInput()` to bypass
+     Windows foreground lock so Kivy can steal focus from Chrome
+  4. **Overlay hide** now calls `_bring_kivy_to_front()` instead of
+     `Window.raise_window()`
+  5. **CEF path** (`_windows_kill_weblink_after_frame`) now also calls
+     `_bring_kivy_to_front()` after hiding
+- **Note:** `cefpython3` requires Python 3.10 — falls back to subprocess
+  Chrome/Edge on 3.12.9. Transition now works reliably with subprocess path.
+- **Files:** `windows/run_win.py`
+
+### [BUG-008] Intro video and media files not found at runtime
+- **Status:** ✅ **Fixed** 2026-07-24
+- **Symptom:** `[ERROR] [Image] Error loading <...intro1.mp4>` — intro
+  broken. Also `❌ Media file not found` for playlist items.
+- **Root cause:** Media download only ran when `server_version > local_version`.
+  When versions matched (v16 == v16), `download_media_files` was never called
+  → media folder stayed empty.
+- **Fix:** Added download check in the "up to date" branch — now downloads
+  missing media files even when playlist version hasn't changed.
+
+### [BUG-009] Video never advances to next item (EOS handler empty)
+- **Status:** ✅ **Fixed** 2026-07-24
+- **Symptom:** Video plays but never advances to the next playlist item.
+- **Root cause:** `_on_video_eos()` callback was a stub — just logged
+  "Video finished playing (EOS)" but never called `next_media()`.
+- **Fix:** Added `Clock.unschedule(self.next_media)` + `Clock.schedule_once`
+  to advance after 0.5s when a video reaches end of stream.
+
+---
+
+## 🧪 Tested & Rejected Solutions Log
+
+> Keep a record of approaches that were tried and didn't work, so we don't
+> waste time re-testing them.
+
+| Date | What was tested | Result | Reason it failed |
+|------|----------------|--------|-----------------|
+| 2026-07-24 | Python 3.14 with Kivy | ❌ | `kivy_deps.sdl2_dev~=0.8.0` has no cp314 wheel |
+| 2026-07-24 | `--kiosk` Chrome flag on Windows | ❌ | Not fullscreen, Wayland exclusive-fullscreen not available |
+| 2026-07-24 | `--start-fullscreen` alone | ❌ | Inconsistent, sometimes not full |
+| 2026-07-24 | `proc.terminate()` for Chrome | ❌ | Leaves child processes running |
+| 2026-07-24 | `proc.kill()` for Chrome | ❌ | Same as terminate — children survive |
+| 2026-07-24 | `Window.raise_window()` for transition | ❌ | Brief desktop flash visible |
+
+---
+
+## 📁 Data Directory Behaviour
+
+When the .exe runs:
+1. Runtime hook (`pyi_runtime_hook.py`) sets `KIWY_DATA_DIR = exe_dir`
+2. `run_win.py` patches `SignagePlayer.__init__` to use `KIWY_DATA_DIR`
+3. Local folders created next to the .exe:
+   ```
+   KiwySignagePlayer.exe
+   config/
+     app_config.json
+     resources/  (icons, intro video)
+     certs/      (SSL certificates)
+   media/
+     edited_media/
+   playlists/
+   logs/
+   .kivy/        (Kivy home)
+   .player_heartbeat
+   ```
+
+---
+
+## 🔧 Build Cheatsheet
+
+```powershell
+# Build the .exe (from windows/ directory)
+Set-Location windows
+& .\venv\Scripts\python.exe -m PyInstaller build.spec --clean --noconfirm
+
+# Run in dev mode (no build needed)
+& .\venv\Scripts\python.exe run_win.py
+
+# Test imports only
+& .\venv\Scripts\python.exe test_import_fix.py
+```
+
+---
+
+## 📝 Notes for the Next Session
+
+- [x] ~~Investigate [BUG-006]~~ → merged into [BUG-007], fixed with CEF + win32gui
+- [x] ~~Test `SetForegroundWindow`~~ → `_bring_kivy_to_front()` uses `win32gui`
+- [x] Install `cefpython3` — embedded Chromium, no more subprocess
+- [x] ~~Verify CEF embedded browser actually works at runtime~~ → CEF needs Python 3.10, falls back to Chrome/Edge
+- [x] ~~Test the subprocess fallback path when CEF is unavailable~~ → Tested and working with `_bring_kivy_to_front()`
+- [x] ~~Check why `AsyncImage` error shows for intro1.mp4 (path issue)~~ → Runtime hook copies resources to exe dir
+- [x] ~~Ensure media files are downloaded before playback~~ → `pyi_runtime_hook.py` copies config/resources on first run
+- [x] ~~Add `cef_browser.py` to PyInstaller hidden imports~~ → Already in `build.spec`
+- [x] ~~Make `network_monitor.py` Windows-compatible~~ → [BUG-010] fixed 2026-07-31 (`ping -n` / `netsh wlan` on Windows, rfkill path preserved on Linux)
+- [ ] Rebuild the .exe to pick up the `network_monitor.py` fix
+- [ ] Clean `cefpython3` from `venv/` (Python 3.12 won't use it anyway)
+- [ ] Verify the .exe works on a fresh Windows machine (no Python installed)
+- [ ] Test the `taskkill` fallback path on a machine without Chrome/Edge installed
+- [ ] Add a standalone `.bat` launcher for development mode

windows/launch_player.bat

@@ -0,0 +1,27 @@
+@echo off
+REM ============================================================
+REM Kiwy Signage Player - Windows Launcher
+REM ============================================================
+REM This batch file launches the Kiwy Signage Player executable.
+REM It creates local folders for playlist, media, config, and logs
+REM next to the executable.
+REM ============================================================
+
+cd /d "%~dp0dist\KiwySignagePlayer"
+
+echo ============================================
+echo  Kiwy Signage Player - Windows Edition
+echo ============================================
+echo.
+echo Launching player...
+echo.
+
+start "" "KiwySignagePlayer.exe"
+
+echo Player started.
+echo.
+echo If the player window does not appear, check:
+echo   dist\KiwySignagePlayer\logs\crash.log
+echo   dist\KiwySignagePlayer\logs\fatal_crash.log
+echo.
+pause

windows/pyi_runtime_hook.py

@@ -0,0 +1,169 @@
+"""
+PyInstaller Runtime Hook for Kiwy Signage Player
+------------------------------------------------
+Runs at startup of the packaged .exe to fix paths and environment.
+Creates all necessary folders LOCAL to the executable's directory.
+"""
+
+import os
+import sys
+import platform
+from pathlib import Path
+
+
+def _set_process_dpi_awareness():
+    """Declare per-monitor DPI awareness BEFORE SDL/Kivy initialize.
+
+    On a display scaled above 100% (e.g. 1920x1080 @ 125%), Windows
+    virtualizes a non-DPI-aware app to the scaled-down size (1536x864).
+    Kivy then sizes its content area to the virtualized resolution, leaving a
+    black strip on one side and making images/videos render at the wrong size.
+    Must run before any SDL window is created, so this lives in the runtime
+    hook (the first Python code that runs in the frozen app).
+    """
+    try:
+        try:
+            aware = ctypes.c_int(2)  # PROCESS_PER_MONITOR_DPI_AWARE_V2
+            ctypes.windll.shcore.SetProcessDpiAwareness(aware)
+            return
+        except Exception:
+            pass
+        try:
+            ctypes.windll.user32.SetProcessDPIAware()
+            return
+        except Exception:
+            pass
+    except Exception:
+        pass
+
+
+if platform.system() == 'Windows':
+    import ctypes
+    _set_process_dpi_awareness()
+
+# ── IMPORTANT: Set Windows environment BEFORE any Kivy code runs ──
+# This must happen before main.py's top-level code executes, because
+# main.py sets SDL_VIDEODRIVER=wayland,x11,dummy which would crash on Windows.
+os.environ['SDL_VIDEODRIVER'] = 'windows'
+os.environ['SDL_AUDIODRIVER'] = 'directsound'
+os.environ['KIVY_WINDOW'] = 'sdl2'
+os.environ['KIVY_GL_BACKEND'] = 'angle_sdl2'
+os.environ['KIVY_VIDEO'] = 'ffpyplayer'
+os.environ['KIVY_AUDIO'] = 'ffpyplayer'
+os.environ['FFPYPLAYER_CODECS'] = 'h264,h265,vp9,vp8'
+os.environ['SDL_VIDEO_ALLOW_SCREENSAVER'] = '0'
+os.environ['KIVY_NO_FILELOG'] = '1'
+os.environ['KIVY_INPUTPROVIDERS'] = ''  # Let Kivy auto-detect on Windows
+# Use native physical pixels (fixes black strip on DPI-scaled displays).
+os.environ.setdefault('SDL_VIDEO_HIGHDPI', '1')
+
+# ── Capture ALL early output to a crash log ─────────────────────────
+# Ensure we catch any exception that happens before Logger is available.
+_startup_log_path = None
+try:
+    _exe_dir = Path(sys.executable).parent
+    _startup_log_path = _exe_dir / 'logs' / 'startup_crash.log'
+    (_startup_log_path.parent).mkdir(parents=True, exist_ok=True)
+    with open(_startup_log_path, 'w') as _f:
+        _f.write("pyi_runtime_hook.py started\n")
+except Exception:
+    pass
+
+
+def _setup_paths():
+    """Ensure the app can find its bundled files at runtime.
+
+    All data folders (config, media, playlists, logs) are created
+    LOCAL to the executable's directory — NOT in %%APPDATA%%.
+    """
+    # In PyInstaller, sys.executable is the .exe path.
+    # sys._MEIPASS is the extraction directory (i.e. _internal/ folder).
+    exe_dir = Path(sys.executable).parent
+    internal_dir = Path(getattr(sys, '_MEIPASS', exe_dir))
+
+    # ── Change cwd to _internal so Builder.load_file('signage_player.kv')
+    #    and other relative file references from main.py resolve ─────
+    os.chdir(str(internal_dir))
+
+    # Add bundled src directory to Python path
+    src_dir = str(internal_dir / 'src')
+    if os.path.isdir(src_dir) and src_dir not in sys.path:
+        sys.path.insert(0, src_dir)
+
+    # Add internal directory for config/media/playlists access
+    if str(internal_dir) not in sys.path:
+        sys.path.insert(0, str(internal_dir))
+
+    # ── Local folders next to the .exe ──────────────────────────────
+    # All data lives in the SAME folder as the executable so the user
+    # can copy/move the whole directory and everything still works.
+    os.environ['KIWY_DATA_DIR'] = str(exe_dir)
+
+    # Set KIVY_HOME to a local .kivy folder next to the .exe
+    kivy_home = exe_dir / '.kivy'
+    os.environ.setdefault('KIVY_HOME', str(kivy_home))
+    kivy_home.mkdir(parents=True, exist_ok=True)
+
+    # Create local data folders next to the .exe
+    for sub in ['config', 'config/resources', 'media', 'playlists', 'logs']:
+        (exe_dir / sub).mkdir(parents=True, exist_ok=True)
+
+
+def _copy_bundled_resources():
+    """Copy bundled resource files to the local folders on first run.
+
+    NOTE: app_config.json is intentionally absent. It is not bundled (see
+    build.spec) because shipping it would plant the build machine's server
+    settings into a fresh install. The player instead starts unconfigured and
+    runs its first-run setup, writing a real config next to the .exe.
+    """
+    exe_dir = Path(sys.executable).parent
+    internal_dir = Path(getattr(sys, '_MEIPASS', exe_dir))
+
+    # Files to copy (source in bundle -> destination next to .exe)
+    files_to_copy = [
+        ('config/resources/access-card.png', 'config/resources/access-card.png'),
+        ('config/resources/arrow.png', 'config/resources/arrow.png'),
+        ('config/resources/backward.png', 'config/resources/backward.png'),
+        ('config/resources/card-checked.png', 'config/resources/card-checked.png'),
+        ('config/resources/edit-pen.png', 'config/resources/edit-pen.png'),
+        ('config/resources/exit.png', 'config/resources/exit.png'),
+        ('config/resources/forward.png', 'config/resources/forward.png'),
+        ('config/resources/intro1.mp4', 'config/resources/intro1.mp4'),
+        ('config/resources/pause.png', 'config/resources/pause.png'),
+        ('config/resources/pencil.png', 'config/resources/pencil.png'),
+        ('config/resources/play.png', 'config/resources/play.png'),
+        ('config/resources/settings.png', 'config/resources/settings.png'),
+    ]
+
+    for src_rel, dest_rel in files_to_copy:
+        src_path = internal_dir / src_rel
+        dest_path = exe_dir / dest_rel
+        if src_path.is_file() and not dest_path.exists():
+            try:
+                dest_path.parent.mkdir(parents=True, exist_ok=True)
+                import shutil
+                shutil.copy2(str(src_path), str(dest_path))
+            except Exception:
+                pass  # Non-critical; app can still run
+
+
+# ── Wrap everything in try/except to capture early crashes ──────────
+try:
+    _setup_paths()
+    _copy_bundled_resources()
+    # If we reach here, the hook finished successfully
+    try:
+        with open(_startup_log_path, 'a') as _f:
+            _f.write("pyi_runtime_hook.py completed successfully\n")
+    except Exception:
+        pass
+except Exception as _hook_exc:
+    import traceback as _tb
+    try:
+        with open(_startup_log_path, 'a') as _f:
+            _f.write(f"pyi_runtime_hook.py CRASHED: {_hook_exc}\n")
+            _tb.print_exc(file=_f)
+    except Exception:
+        pass
+    raise  # Re-raise so the .exe still fails visibly

windows/requirements_win.txt

@@ -0,0 +1,51 @@
+# =====================================================================
+# Kiwy Signage Player - Windows Dependencies
+# =====================================================================
+# Install with: pip install -r requirements_win.txt
+
+# --- Core GUI Framework ---
+# Kivy 2.3+ with SDL2 backend (best for Windows)
+kivy[base]>=2.3.0
+
+# --- Video Playback ---
+# ffpyplayer for video decoding
+ffpyplayer>=4.5
+
+# --- HTTP / Networking ---
+requests>=2.32.0,<3.0.0
+aiohttp>=3.9.0,<4.0.0
+certifi>=2024.0.0
+
+# --- Password / Auth ---
+bcrypt>=4.2.0,<5.0.0
+
+# --- Packaging ---
+# PyInstaller for building the .exe
+pyinstaller>=6.0
+
+# --- Embedded web engine (web links) ---
+# pythonnet lets Python drive the WebView2 .NET SDK. WebView2 renders INSIDE
+# the Kivy window as a child window, which is what removed the old subprocess
+# browser bugs (window opening behind the player, instant hand-off exit,
+# z-order/focus fights, leaked chrome.exe/msedge.exe processes).
+# The WebView2 *runtime* is a free, Microsoft-shipped evergreen component and
+# is intentionally NOT bundled; the small SDK DLLs live in windows/webview2_sdk/
+# and are added to the exe by build.spec.
+# Without pythonnet the player silently falls back to the Chrome/Edge
+# subprocess engine, so weblinks still work but with the old drawbacks.
+pythonnet>=3.0.3
+
+# --- Windows-specific Libraries ---
+# cefpython3: Embedded Chromium browser (replaces subprocess Chrome/Edge)
+# Installed separately because it's a large package (69 MB):
+#   pip install cefpython3
+# cefpython3>=66.1
+# Note: Uncomment above line to bundle cefpython3 in the .exe.
+# Without it, weblinks fall back to subprocess Chrome/Edge.
+
+# pywin32: Windows API bindings (win32gui for SetForegroundWindow etc.)
+# Already installed as a dependency of kivy[base]
+
+# --- Optional: DirectShow filters for better video on Windows ---
+# ffmpeg (install via chocolatey or manual download)
+# https://ffmpeg.org/download.html

windows/sign_exe.ps1

@@ -0,0 +1,156 @@
+<#
+================================================================================
+ Kiwy Signage Player - Code Signing Script
+================================================================================
+ Signs the built KiwySignagePlayer.exe with an Authenticode certificate.
+
+ For PRODUCTION PCs that have Smart App Control (SAC) ENABLED:
+   - The cert MUST be issued by a reputable public CA (e.g. Sectigo, SSL.com,
+     DigiCert, GlobalSign). Self-signed certs will NOT satisfy SAC.
+   - You must use this script with -CertPath pointing at your .pfx/.p12.
+
+ For DEV/TEST machines where you have admin rights:
+   - A self-signed cert trusted in the local Root store + Trusted Publisher
+     works (see create_self_signed_cert.ps1), but it does NOT satisfy SAC.
+
+ Usage:
+   .\sign_exe.ps1 -CertPath "C:\certs\mycodesign.pfx" -CertPassword "secret"
+   .\sign_exe.ps1 -CertPath "C:\certs\mycodesign.pfx"             # prompt for pwd
+   .\sign_exe.ps1 -CertThumbprint "A1B2..."                        # from cert store
+   .\sign_exe.ps1 -CertPath "C:\certs\mycodesign.pfx" -SkipTimestamp $false
+
+ Optional:
+   -TimestampUrl  RFC3161 timestamp server (default DigiCert).
+                   Timestamping is REQUIRED for the signature to stay valid
+                   after the cert expires and to satisfy Smart App Control.
+   -ExePath       Path to the exe to sign (default dist\KiwySignagePlayer\KiwySignagePlayer.exe)
+   -Force         Re-sign even if already signed
+================================================================================
+#>
+[CmdletBinding()]
+param(
+    [string]$CertPath,
+    [string]$CertPassword,
+    [string]$CertThumbprint,
+    [string]$ExePath = (Join-Path $PSScriptRoot 'dist\KiwySignagePlayer\KiwySignagePlayer.exe'),
+    [string]$TimestampUrl = 'http://timestamp.digicert.com',
+    [switch]$SkipTimestamp,
+    [switch]$Force
+)
+
+$ErrorActionPreference = 'Stop'
+Set-Location $PSScriptRoot
+
+function Find-Signtool {
+    $candidates = @(
+        (Get-Command signtool.exe -ErrorAction SilentlyContinue).Source,
+        "$env:ProgramFiles(x86)\Windows Kits\10\bin\10.0.26100.0\x64\signtool.exe",
+        "$env:ProgramFiles(x86)\Windows Kits\10\bin\10.0.22621.0\x64\signtool.exe",
+        "$env:ProgramFiles(x86)\Windows Kits\10\bin\10.0.22000.0\x64\signtool.exe",
+        "$env:ProgramFiles(x86)\Windows Kits\10\bin\10.0.19041.0\x64\signtool.exe"
+    )
+    foreach ($c in $candidates) {
+        if ($c -and (Test-Path $c)) { return $c }
+    }
+    # Fallback: newest SDK on disk
+    $sdkBin = "$env:ProgramFiles(x86)\Windows Kits\10\bin"
+    if (Test-Path $sdkBin) {
+        $found = Get-ChildItem $sdkBin -Recurse -Filter signtool.exe -ErrorAction SilentlyContinue |
+                 Sort-Object FullName -Descending | Select-Object -First 1 -ExpandProperty FullName
+        if ($found) { return $found }
+    }
+    return $null
+}
+
+$signtool = Find-Signtool
+if ($signtool) {
+    Write-Host "[INFO ] signtool: $signtool" -ForegroundColor Green
+} else {
+    Write-Host "[WARN ] signtool.exe not found - will use PowerShell Set-AuthenticodeSignature fallback." -ForegroundColor Yellow
+    Write-Host "[WARN ] NOTE: the fallback cannot apply an RFC3161 timestamp. For production (SAC),"
+    Write-Host "[WARN ] install the Windows SDK signtool:  winget install Microsoft.WindowsSDK.10.0.26100"
+}
+
+if (-not (Test-Path $ExePath)) {
+    Write-Host "[ERROR] Exe not found: $ExePath" -ForegroundColor Red
+    Write-Host "Run build_win.bat first, or pass -ExePath."
+    exit 1
+}
+
+# Already signed?
+$sig = Get-AuthenticodeSignature -FilePath $ExePath
+if ($sig.Status -eq 'Valid' -and -not $Force) {
+    Write-Host "[INFO ] Exe is already validly signed by: $($sig.SignerCertificate.Subject)" -ForegroundColor Green
+    exit 0
+}
+
+# ── Load the certificate ────────────────────────────────────────────
+$cert = $null
+if ($CertThumbprint) {
+    $cert = Get-ChildItem Cert:\CurrentUser\My, Cert:\LocalMachine\My -Recurse -ErrorAction SilentlyContinue |
+            Where-Object { $_.Thumbprint -eq $CertThumbprint } | Select-Object -First 1
+    if (-not $cert) {
+        Write-Host "[ERROR] No certificate with thumbprint $CertThumbprint in My store." -ForegroundColor Red
+        exit 1
+    }
+} elseif ($CertPath) {
+    if (-not (Test-Path $CertPath)) {
+        Write-Host "[ERROR] Cert file not found: $CertPath" -ForegroundColor Red
+        exit 1
+    }
+    if (-not $CertPassword) {
+        $secure = Read-Host "Certificate password for $CertPath" -AsSecureString
+        $CertPassword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto(
+            [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($secure))
+    }
+    $securePwd = ConvertTo-SecureString -String $CertPassword -Force -AsPlainText
+    $cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2($CertPath, $securePwd)
+} else {
+    Write-Host "[ERROR] Provide -CertPath or -CertThumbprint." -ForegroundColor Red
+    exit 1
+}
+
+# ── Sign (signtool preferred, PowerShell fallback) ──────────────────
+if ($signtool) {
+    $args = @()
+    if ($CertThumbprint) {
+        $args = @('sign', '/sha1', $CertThumbprint, '/fd', 'SHA256')
+    } else {
+        $args = @('sign', '/f', $CertPath, '/p', $CertPassword, '/fd', 'SHA256')
+    }
+    if (-not $SkipTimestamp) {
+        $args += @('/tr', $TimestampUrl, '/td', 'SHA256')
+    }
+    $args += @('"' + $ExePath + '"')
+    $cmd = "& `"$signtool`" " + ($args -join ' ')
+    Write-Host "[INFO ] Signing with signtool..." -ForegroundColor Cyan
+    Write-Host "[CMD  ] $cmd"
+    Invoke-Expression $cmd
+    if ($LASTEXITCODE -ne 0) {
+        Write-Host "[ERROR] signtool failed with exit code $LASTEXITCODE" -ForegroundColor Red
+        exit $LASTEXITCODE
+    }
+} else {
+    Write-Host "[INFO ] Signing with PowerShell Set-AuthenticodeSignature (no timestamp)..." -ForegroundColor Cyan
+    if (-not $cert.HasPrivateKey) {
+        Write-Host "[ERROR] Certificate has no private key - cannot sign." -ForegroundColor Red
+        exit 1
+    }
+    $sig = Set-AuthenticodeSignature -FilePath $ExePath -Certificate $cert -HashAlgorithm SHA256
+    if ($sig.Status -notin @('Valid','UnknownError')) {
+        Write-Host "[ERROR] Signing failed: $($sig.StatusMessage)" -ForegroundColor Red
+        exit 1
+    }
+}
+
+# Verify
+$sig = Get-AuthenticodeSignature -FilePath $ExePath
+Write-Host ""
+Write-Host "[INFO ] Signature status: $($sig.Status)" -ForegroundColor Green
+Write-Host "[INFO ] Signer: $($sig.SignerCertificate.Subject)" -ForegroundColor Green
+if ($sig.Status -eq 'Valid') {
+    Write-Host "[OK   ] KiwySignagePlayer.exe is now digitally signed." -ForegroundColor Green
+} else {
+    Write-Host "[WARN ] Signature status is '$($sig.Status)' - inspect above." -ForegroundColor Yellow
+    Write-Host "[WARN ] If no timestamp was applied, SAC may still block after cert expiry." -ForegroundColor Yellow
+}

windows/start_player_watchdog.bat

@@ -0,0 +1,48 @@
+@echo off
+REM ============================================================
+REM Kiwy Signage Player - Watchdog Launcher (Windows)
+REM ============================================================
+REM Starts watchdog.ps1, which keeps the player running 24/7:
+REM   * restarts it if it crashes
+REM   * restarts it if it hangs (stale heartbeat)
+REM   * backs off if it cannot stay up (crash-loop breaker)
+REM
+REM The WATCHDOG runs in this window. Closing it stops supervision
+REM (it does NOT stop the player).
+REM
+REM The ONLY supported way to stop the player is the exit screen
+REM password. That writes .player_stop_requested next to the .exe,
+REM which tells the watchdog not to restart it. Launching again
+REM starts a fresh session and clears that flag.
+REM
+REM Usage:
+REM   start_player_watchdog.bat            start supervising
+REM   start_player_watchdog.bat -Status    report state, then exit
+REM ============================================================
+
+setlocal
+cd /d "%~dp0"
+
+echo ============================================
+echo  Kiwy Signage Player - Watchdog
+echo ============================================
+echo.
+echo Stop the WATCHDOG with Ctrl+C.
+echo Stop the PLAYER via the exit password.
+echo.
+
+powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0watchdog.ps1" %*
+
+set "RC=%ERRORLEVEL%"
+
+if not "%RC%"=="0" (
+    echo.
+    echo [ERROR] Watchdog exited with code %RC%.
+    echo         Check logs\watchdog.log next to the player executable.
+    echo.
+)
+
+REM Keep the window open so a crash is readable when double-clicked.
+if "%~1"=="" pause
+endlocal
+exit /b %RC%

windows/test_first_run_setup.py

@@ -0,0 +1,111 @@
+"""Tests the first-run setup decision logic in src/main.py.
+
+The rule that matters: a player is "configured" only when it has REAL server
+settings. A missing file, an empty file, unparseable JSON, missing keys, and
+leftover placeholder values must ALL count as unconfigured, so the app shows
+the setup notice instead of silently trying to reach "localhost".
+
+Run:  windows\\venv\\Scripts\\python.exe windows\\test_first_run_setup.py
+Exit code 0 = PASS.
+"""
+
+import sys
+from pathlib import Path
+
+SRC = Path(__file__).resolve().parent.parent / 'src'
+sys.path.insert(0, str(SRC))
+
+import main as app  # noqa: E402
+
+
+def main():
+    print('=' * 68)
+    print(' First-run setup detection test')
+    print('=' * 68)
+
+    must_be_unconfigured = {
+        'None': None,
+        'empty dict': {},
+        'empty config file': {},
+        'placeholder defaults': {
+            'server_ip': 'localhost',
+            'screen_name': 'kivy-player',
+            'quickconnect_key': '1234567',
+        },
+        'all blank': {
+            'server_ip': '', 'screen_name': '', 'quickconnect_key': '',
+        },
+        'missing keys': {'server_ip': '192.168.0.110'},
+        'whitespace only': {
+            'server_ip': '   ', 'screen_name': '\t', 'quickconnect_key': ' ',
+        },
+        'loopback': {
+            'server_ip': '127.0.0.1', 'screen_name': 'PC', 'quickconnect_key': '9',
+        },
+        'placeholder screen name': {
+            'server_ip': '192.168.0.110',
+            'screen_name': 'kivy-player',
+            'quickconnect_key': '8887779',
+        },
+    }
+
+    must_be_configured = {
+        'real settings': {
+            'server_ip': '192.168.0.110',
+            'screen_name': 'DESKTOP-NJLBQKH',
+            'quickconnect_key': '8887779',
+        },
+        'hostname as ip': {
+            'server_ip': 'digi-signage.local',
+            'screen_name': 'Player1',
+            'quickconnect_key': '0123456',
+        },
+        'extra keys ignored': {
+            'server_ip': '10.0.0.5', 'screen_name': 'Sign1',
+            'quickconnect_key': '424242', 'weblink': {'engine': 'auto'},
+        },
+    }
+
+    ok = True
+
+    for label, value in must_be_unconfigured.items():
+        got = app.config_is_configured(value)
+        flag = 'ok  ' if got is False else 'FAIL'
+        if got is not False:
+            ok = False
+        print(f'  [{flag}] unconfigured: {label:24} -> {got}')
+
+    print()
+    for label, value in must_be_configured.items():
+        got = app.config_is_configured(value)
+        flag = 'ok  ' if got is True else 'FAIL'
+        if got is not True:
+            ok = False
+        print(f'  [{flag}] configured:   {label:24} -> {got}')
+
+    # The defaults the app starts from must themselves be "unconfigured",
+    # otherwise a fresh install would look ready to sync.
+    print()
+    default_ok = app.config_is_configured(app.DEFAULT_CONFIG) is False
+    print(f'  [{"ok  " if default_ok else "FAIL"}] DEFAULT_CONFIG is unconfigured '
+          f'-> {app.config_is_configured(app.DEFAULT_CONFIG)}')
+    if not default_ok:
+        ok = False
+
+    # Required keys must actually be the ones enforced.
+    print(f'\n  required keys: {app.CONFIG_REQUIRED_KEYS}')
+    print(f'  notice delay : {app.SETUP_NOTICE_SECONDS}s before Settings opens')
+
+    # The notice must wait a few seconds (the user asked for 5).
+    if app.SETUP_NOTICE_SECONDS != 5:
+        print(f'  FAIL: expected a 5s notice, got {app.SETUP_NOTICE_SECONDS}')
+        ok = False
+
+    print('=' * 68)
+    print(' RESULT:', 'PASS' if ok else 'FAIL')
+    print('=' * 68)
+    return 0 if ok else 1
+
+
+if __name__ == '__main__':
+    sys.exit(main())

windows/test_import_fix.py

@@ -0,0 +1,39 @@
+"""Test that setting env vars before importing main.py fixes the crash."""
+import os
+import sys
+
+# This is the KEY fix: set Windows env vars BEFORE main.py is imported
+os.environ['SDL_VIDEODRIVER'] = 'windows'
+os.environ['SDL_AUDIODRIVER'] = 'directsound'
+os.environ['KIVY_WINDOW'] = 'sdl2'
+# Use 'angle_sdl2' on Windows for better DirectX compatibility
+os.environ['KIVY_GL_BACKEND'] = 'angle_sdl2'
+# Let Kivy auto-detect input providers on Windows
+os.environ['KIVY_INPUTPROVIDERS'] = ''
+os.environ['KIVY_VIDEO'] = 'ffpyplayer'
+os.environ['KIVY_AUDIO'] = 'ffpyplayer'
+os.environ['FFPYPLAYER_CODECS'] = 'h264,h265,vp9,vp8'
+os.environ['SDL_VIDEO_ALLOW_SCREENSAVER'] = '0'
+
+# Add src to path
+sys.path.insert(0, r'C:\Users\Dell-PC\Desktop\Kiwy-Signage\src')
+
+print("=" * 60)
+print("Testing main.py import with Windows env vars...")
+print("=" * 60)
+
+try:
+    import main
+    print("SUCCESS: main.py imported without crashing!")
+    print(f"  SDL_VIDEODRIVER = {os.environ.get('SDL_VIDEODRIVER')}")
+    print(f"  KIVY_WINDOW = {os.environ.get('KIVY_WINDOW')}")
+    print(f"  KIVY_GL_BACKEND = {os.environ.get('KIVY_GL_BACKEND')}")
+    print(f"  KIVY_INPUTPROVIDERS = {os.environ.get('KIVY_INPUTPROVIDERS')}")
+except SystemExit as e:
+    print(f"FAILED: SystemExit({e}) - Kivy window provider still not loading")
+    sys.exit(1)
+except Exception as e:
+    print(f"FAILED with exception: {e}")
+    import traceback
+    traceback.print_exc()
+    sys.exit(1)

windows/test_video_hang.py

@@ -0,0 +1,139 @@
+"""Proves src/video_safety.py stops the hang at the end of a video.
+
+Reproduces the exact failure:
+  Kivy's VideoFFPy.unload() does `self._thread.join()` with NO timeout. If the
+  ffpyplayer decode thread does not exit, the calling thread (the Kivy main
+  thread, via Kivy's own on_eos handler setting state='stop') blocks forever and
+  Windows reports the app as hung (AppHangB1).
+
+Two checks:
+  1. The guard installs on the REAL Kivy provider (VideoFFPy.play wrapped).
+  2. A deliberately wedged decode thread makes unload() return promptly
+     instead of blocking forever.
+
+Run:  windows\\venv\\Scripts\\python.exe windows\\test_video_hang.py
+Exit code 0 = PASS (the hang is prevented).
+"""
+
+import sys
+import threading
+import time
+from pathlib import Path
+
+SRC = Path(__file__).resolve().parent.parent / 'src'
+sys.path.insert(0, str(SRC))
+
+import video_safety  # noqa: E402
+
+# A short-lived "decode thread" that ignores the quit request, standing in for
+# an ffpyplayer thread stuck inside a codec/close call.
+WEDGE_SECONDS = 30
+
+
+class _WedgedProvider:
+    """Minimal stand-in for VideoFFPy, with the same blocking unload()."""
+
+    def __init__(self):
+        self._thread = threading.Thread(target=self._decode_loop, daemon=True)
+        self._thread.start()
+
+    def _decode_loop(self):
+        # Ignores any "please quit" flag and holds the thread — this is what a
+        # slow ffpyplayer teardown looks like to unload().
+        time.sleep(WEDGE_SECONDS)
+
+    def play(self, *args, **kwargs):
+        return True
+
+    def unload(self):
+        # Verbatim shape of kivy/core/video/video_ffpyplayer.py unload():
+        #   if self._thread:
+        #       self._thread.join()      # <-- no timeout: hangs forever
+        if self._thread:
+            self._thread.join()
+            self._thread = None
+
+
+def main():
+    print('=' * 68)
+    print(' Kivy video-teardown hang test')
+    print('=' * 68)
+
+    ok = True
+
+    # ── 1. Does the guard install on the real provider? ──────────────
+    print('\n[1] guard installation')
+    try:
+        from kivy.core.video import video_ffpyplayer as vfp
+
+        provider = vfp.VideoFFPy
+        print(f'    provider: {provider.__module__}.{provider.__name__}')
+    except Exception as exc:
+        print(f'    SKIP: ffpyplayer provider not available ({exc})')
+        print('    (the packaged app uses it, so this must pass there)')
+        return 0
+
+    installed = video_safety.suppress_kivy_video_blocking_unload(timeout=2.0)
+    print(f'    suppress_kivy_video_blocking_unload() -> {installed}')
+    wrapped = getattr(provider, '_kiwy_bounded_join', False)
+    print(f'    provider.play wrapped -> {wrapped}')
+    if not (installed and wrapped):
+        print('    FAIL: guard not installed')
+        ok = False
+
+    # The existing Video._do_video_load path must be untouched (no source change).
+    try:
+        from kivy.uix.video import Video
+
+        print(f'    kivy.uix.video.Video unload: '
+              f'{"unload" in dir(Video)}')
+    except Exception as exc:
+        print(f'    note: could not import Video ({exc})')
+
+    # ── 2. Does a wedged thread still block? ─────────────────────────
+    print(f'\n[2] wedged decode thread (holds {WEDGE_SECONDS}s)')
+    prov = _WedgedProvider()
+    # Install the same bound join the guard installs on a real provider.
+    video_safety._bound_thread_join(prov, 2.0)
+    patched = getattr(prov._thread, '_kiwy_bounded_join', False)
+    print(f'    thread join bounded -> {patched}')
+    if not patched:
+        print('    FAIL: thread join was not bounded')
+        ok = False
+
+    started = time.monotonic()
+    prov.unload()          # would hang forever without the fix
+    elapsed = time.monotonic() - started
+    print(f'    unload() returned after {elapsed:.2f}s')
+    if elapsed > 5.0:
+        print(f'    FAIL: unload() blocked for {elapsed:.1f}s (expected < 5s)')
+        ok = False
+    else:
+        print('    OK: unload() no longer blocks the caller indefinitely')
+
+    # ── 3. Control: show the unpatched case really would hang ───────
+    print('\n[3] control (unpatched join, 2s probe to prove it blocks)')
+    prov2 = _WedgedProvider()
+    blocked = True
+    t = threading.Thread(target=prov2.unload, daemon=True)
+    t.start()
+    t.join(timeout=2.0)
+    blocked = t.is_alive()
+    print(f'    unpatched unload() still blocked after 2s -> {blocked}')
+    if not blocked:
+        print('    note: control did not block (timing); fix still valid')
+    else:
+        print('    OK: confirms the original join() is the hang, and the fix '
+              'is what prevents it')
+
+    print('=' * 68)
+    print(' RESULT:', 'PASS' if ok else 'FAIL')
+    if ok:
+        print(' A slow/wedged ffpyplayer teardown can no longer freeze the')
+        print(' player at the end of a video item.')
+    print('=' * 68)
+    return 0 if ok else 1
+
+
+if __name__ == '__main__':
+    sys.exit(main())

windows/test_watchdog.py

@@ -0,0 +1,438 @@
+"""Verifies windows/watchdog.ps1 actually recovers the player.
+
+Three scenarios, each with a real player process:
+
+  1. CRASH  - kill the player (simulating a crash) and confirm the watchdog
+              brings it back and it becomes healthy again.
+  2. HANG   - make the heartbeat go stale while the process stays alive, and
+              confirm the watchdog kills it and restarts it.
+  3. STOP FLAG - write the stop-flag file (what the password exit does) and
+              confirm the watchdog stands down instead of restarting.
+              Then confirm a fresh watchdog run CLEARS the flag (new session).
+
+The watchdog is started as a child process with a short check interval so the
+test is quick. It is stopped at the end; the stop flag it may have created is
+removed so the machine is left as it was found.
+
+Run:  windows\\venv\\Scripts\\python.exe windows\\test_watchdog.py
+Exit code 0 = PASS.
+"""
+
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+WIN = Path(__file__).resolve().parent
+PLAYER_DIR = WIN / 'dist' / 'KiwySignagePlayer'
+EXE = PLAYER_DIR / 'KiwySignagePlayer.exe'
+HEARTBEAT = PLAYER_DIR / '.player_heartbeat'
+STOP_FLAG = PLAYER_DIR / '.player_stop_requested'
+WATCHDOG = WIN / 'watchdog.ps1'
+LOG = PLAYER_DIR / 'logs' / 'watchdog.log'
+
+PS = ['powershell', '-NoProfile', '-ExecutionPolicy', 'Bypass', '-File']
+
+# Fast timings so the test finishes in a reasonable time.
+FAST = ['-HealthCheckIntervalSec', '3', '-HeartbeatStaleSec', '10',
+        '-StartupGraceSec', '45', '-RestartDelaySec', '2',
+        '-CrashLoopMaxFailures', '50', '-CrashLoopBackoffMin', '1']
+
+
+def kill_players():
+    subprocess.run(['taskkill', '/F', '/T', '/IM', 'KiwySignagePlayer.exe'],
+                   capture_output=True, text=True)
+
+
+def player_count():
+    out = subprocess.run(
+        ['powershell', '-NoProfile', '-Command',
+         "(Get-Process -Name KiwySignagePlayer -ErrorAction SilentlyContinue "
+         "| Measure-Object).Count"],
+        capture_output=True, text=True)
+    try:
+        return int((out.stdout or '0').strip() or 0)
+    except ValueError:
+        return 0
+
+
+def hb_age():
+    if not HEARTBEAT.is_file():
+        return -1
+    return time.time() - HEARTBEAT.stat().st_mtime
+
+
+def get_root_pid():
+    """Return the pid of the player process that owns the window.
+
+    The packaged player is TWO processes (PyInstaller bootloader + child).
+    """
+    out = subprocess.run(
+        ['powershell', '-NoProfile', '-Command',
+         "Get-Process -Name KiwySignagePlayer -ErrorAction SilentlyContinue | "
+         "Where-Object { $_.MainWindowHandle -ne 0 } | "
+         "Select-Object -First 1 -ExpandProperty Id"],
+        capture_output=True, text=True)
+    try:
+        return int((out.stdout or '').strip())
+    except ValueError:
+        # Fall back to any player process.
+        out = subprocess.run(
+            ['powershell', '-NoProfile', '-Command',
+             "Get-Process -Name KiwySignagePlayer -ErrorAction SilentlyContinue | "
+             "Select-Object -First 1 -ExpandProperty Id"],
+            capture_output=True, text=True)
+        try:
+            return int((out.stdout or '').strip())
+        except ValueError:
+            return None
+
+
+# ── Exclusive file lock (real Windows share-mode lock) ───────────────
+# msvcrt.locking only locks a byte RANGE within the file, and Python's
+# open() already shares the file for writing, so the player can still replace
+# its contents. Opening with share mode 0 denies ALL other access instead,
+# which is what actually stops the heartbeat being rewritten.
+import ctypes  # noqa: E402
+import ctypes.wintypes as wintypes  # noqa: E402
+
+GENERIC_READ = 0x80000000
+GENERIC_WRITE = 0x40000000
+OPEN_EXISTING = 3
+FILE_ATTRIBUTE_NORMAL = 0x80
+INVALID_HANDLE_VALUE = ctypes.c_void_p(-1).value
+
+_kernel32 = ctypes.WinDLL('kernel32', use_last_error=True)
+_kernel32.CreateFileW.restype = ctypes.c_void_p
+_kernel32.CreateFileW.argtypes = [
+    ctypes.c_wchar_p, wintypes.DWORD, wintypes.DWORD, ctypes.c_void_p,
+    wintypes.DWORD, wintypes.DWORD, ctypes.c_void_p,
+]
+_kernel32.CloseHandle.argtypes = [ctypes.c_void_p]
+
+
+def lock_file_exclusive(path):
+    """Open ``path`` denying all sharing. Returns the handle, or None."""
+    handle = _kernel32.CreateFileW(
+        str(path),
+        GENERIC_READ | GENERIC_WRITE,
+        0,                      # share mode 0: nobody else may touch it
+        None,
+        OPEN_EXISTING,
+        FILE_ATTRIBUTE_NORMAL,
+        None,
+    )
+    if handle in (None, INVALID_HANDLE_VALUE):
+        err = ctypes.get_last_error()
+        print(f'  note: CreateFileW failed (winerror={err})')
+        return None
+    return handle
+
+
+def unlock_file(handle):
+    if handle:
+        try:
+            _kernel32.CloseHandle(handle)
+        except Exception:
+            pass
+
+
+def tail_log(n=14):
+    if not LOG.is_file():
+        return []
+    lines = LOG.read_text(encoding='utf-8', errors='replace').splitlines()
+    return lines[-n:]
+
+
+def main():
+    # Tee stdout to a UTF-8 report file: the console in this environment
+    # mangles encoding between processes, so the file is the reliable record.
+    report_path = WIN / 'watchdog_test_report.txt'
+
+    class _Tee:
+        def __init__(self, stream, path):
+            self._stream = stream
+            self._path = path
+
+        def write(self, text):
+            self._stream.write(text)
+            try:
+                with open(self._path, 'a', encoding='utf-8') as fh:
+                    fh.write(text)
+            except Exception:
+                pass
+
+        def flush(self):
+            try:
+                self._stream.flush()
+            except Exception:
+                pass
+
+    try:
+        report_path.unlink()
+    except Exception:
+        pass
+    sys.stdout = _Tee(sys.__stdout__, report_path)
+
+    print('=' * 70)
+    print(' Watchdog recovery test')
+    print('=' * 70)
+
+    if not EXE.is_file():
+        print(f'FAIL: player exe not found at {EXE}')
+        return 1
+    if not WATCHDOG.is_file():
+        print(f'FAIL: watchdog not found at {WATCHDOG}')
+        return 1
+
+    ok = True
+    watchdog = None
+
+    # Clean slate: no player, no leftover stop flag.
+    kill_players()
+    if STOP_FLAG.exists():
+        STOP_FLAG.unlink()
+    time.sleep(2)
+
+    try:
+        # ---------------------------------------------------------------
+        # Start the watchdog; it should launch the player itself.
+        # ---------------------------------------------------------------
+        print('\n[setup] starting watchdog (it should launch the player)')
+        watchdog = subprocess.Popen(
+            PS + [str(WATCHDOG)] + FAST,
+            cwd=str(WIN),
+            creationflags=getattr(subprocess, 'CREATE_NEW_CONSOLE', 0),
+        )
+
+        # Wait for the player to come up and report a heartbeat.
+        deadline = time.time() + 90
+        healthy = False
+        while time.time() < deadline:
+            time.sleep(3)
+            if player_count() > 0 and 0 <= hb_age() < 10:
+                healthy = True
+                break
+        print(f'  player processes={player_count()} hb_age={hb_age():.0f}s')
+        if not healthy:
+            print('  FAIL: player never became healthy under the watchdog')
+            ok = False
+        else:
+            print('  OK: watchdog launched the player and it is healthy')
+
+        # ---------------------------------------------------------------
+        # 1. CRASH recovery
+        # ---------------------------------------------------------------
+        if healthy:
+            print('\n[1] CRASH: killing the player (simulating a crash)')
+            kill_players()
+            time.sleep(2)
+            print(f'  after kill: processes={player_count()}')
+
+            recovered = False
+            deadline = time.time() + 150
+            while time.time() < deadline:
+                time.sleep(3)
+                if player_count() > 0 and 0 <= hb_age() < 10:
+                    recovered = True
+                    break
+            print(f'  after recovery: processes={player_count()} hb_age={hb_age():.0f}s')
+            if recovered:
+                print('  OK: watchdog restarted the player after the crash')
+            else:
+                print('  FAIL: watchdog did not restore a healthy player')
+                ok = False
+
+            # -----------------------------------------------------------
+            # 2. HANG recovery (stale heartbeat, process still alive)
+            # -----------------------------------------------------------
+            # IMPORTANT: backdating the heartbeat's mtime does NOT simulate a
+            # hang - the healthy player rewrites it on its next tick, so the
+            # watchdog never sees it stale (that was a false pass in an earlier
+            # version of this test).
+            #
+            # A genuine hang means "process alive, but it stopped updating the
+            # heartbeat". We reproduce exactly that: hold the heartbeat open
+            # with an exclusive Windows lock (share mode 0), so the player's
+            # own write fails. The player catches that write error, logs a
+            # warning and KEEPS RUNNING - the mtime simply stops advancing.
+            # That is precisely the condition the watchdog tests for.
+            print('\n[2] HANG: freezing the heartbeat (player stays alive)')
+            pid_before = get_root_pid()
+            if pid_before is None:
+                print('  FAIL: could not find the player process')
+                ok = False
+            else:
+                handle = lock_file_exclusive(HEARTBEAT)
+                if handle is None:
+                    print('  FAIL: could not lock the heartbeat file')
+                    ok = False
+                else:
+                    print(f'  holding an exclusive lock on the heartbeat; '
+                          f'player pid={pid_before} should stay alive')
+
+                    # Wait for the heartbeat to go stale while the process lives.
+                    stale_seen = False
+                    deadline = time.time() + 90
+                    while time.time() < deadline:
+                        time.sleep(2)
+                        if hb_age() > 15:
+                            stale_seen = True
+                            break
+                    still_alive = player_count() > 0
+                    print(f'  heartbeat age={hb_age():.0f}s stale={stale_seen}; '
+                          f'player still running={still_alive}')
+                    if not (stale_seen and still_alive):
+                        print('  FAIL: could not create a genuine stale-heartbeat hang')
+                        ok = False
+
+                    # The watchdog should kill the frozen player...
+                    old_killed = False
+                    deadline = time.time() + 90
+                    while time.time() < deadline:
+                        time.sleep(2)
+                        if get_root_pid() != pid_before:
+                            old_killed = True
+                            break
+                    print(f'  watchdog killed the stale player: {old_killed}')
+
+                    # ...release the lock so the replacement can write...
+                    unlock_file(handle)
+
+                    # ...and confirm a fresh, healthy player is now running.
+                    restarted = False
+                    deadline = time.time() + 150
+                    while time.time() < deadline:
+                        time.sleep(3)
+                        if player_count() > 0 and 0 <= hb_age() < 10:
+                            restarted = True
+                            break
+                    print(f'  after hang recovery: processes={player_count()} '
+                          f'hb_age={hb_age():.0f}s')
+                    if old_killed and restarted:
+                        print('  OK: watchdog detected the hang and restarted the player')
+                    else:
+                        print('  FAIL: watchdog did not recover from the hang')
+                        ok = False
+
+        # ---------------------------------------------------------------
+        # 3. STOP FLAG: the password exit must not be undone
+        # ---------------------------------------------------------------
+        print('\n[3] STOP FLAG: simulating the password exit')
+        STOP_FLAG.write_text('User requested exit via password', encoding='utf-8')
+        print('  wrote the stop flag')
+
+        # The player is running; give the watchdog time to notice and stand down.
+        stood_down = False
+        deadline = time.time() + 90
+        while time.time() < deadline:
+            time.sleep(3)
+            if watchdog.poll() is not None:
+                stood_down = True
+                break
+        print(f'  watchdog exited={stood_down} (rc={watchdog.poll()})')
+        if stood_down:
+            print('  OK: watchdog stood down instead of restarting')
+        else:
+            print('  FAIL: watchdog did not stand down on the stop flag')
+            ok = False
+
+        # Confirm it really stops restarting: kill the player and verify it
+        # stays dead now that the watchdog is gone.
+        kill_players()
+        time.sleep(8)
+        if player_count() == 0:
+            print('  OK: player stayed stopped (no supervisor resurrecting it)')
+        else:
+            print('  FAIL: player was restarted despite the stop flag')
+            ok = False
+
+        # ---------------------------------------------------------------
+        # 4. NEW SESSION: a fresh watchdog run clears the flag
+        # ---------------------------------------------------------------
+        print('\n[4] NEW SESSION: starting the watchdog again')
+        if not STOP_FLAG.exists():
+            print('  FAIL: stop flag vanished unexpectedly')
+            ok = False
+        session = subprocess.Popen(
+            PS + [str(WATCHDOG), '-Status'],
+            cwd=str(WIN), stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
+            text=True)
+        # -Status must NOT clear the flag (it is read-only).
+        try:
+            session.wait(timeout=60)
+        except subprocess.TimeoutExpired:
+            session.kill()
+        if STOP_FLAG.exists():
+            print('  OK: -Status is read-only (flag untouched)')
+        else:
+            print('  FAIL: -Status cleared the flag (should be read-only)')
+            ok = False
+
+        # A real run clears it, then launches the player.
+        fresh = subprocess.Popen(
+            PS + [str(WATCHDOG)] + FAST,
+            cwd=str(WIN),
+            creationflags=getattr(subprocess, 'CREATE_NEW_CONSOLE', 0))
+        cleared = False
+        deadline = time.time() + 60
+        while time.time() < deadline:
+            time.sleep(2)
+            if not STOP_FLAG.exists():
+                cleared = True
+                break
+        print(f'  stop flag cleared by the new session: {cleared}')
+        if cleared:
+            print('  OK: a fresh launch starts a new session (flag cleared)')
+        else:
+            print('  FAIL: the new session did not clear the stop flag')
+            ok = False
+
+        # And the player comes back up.
+        back_up = False
+        deadline = time.time() + 120
+        while time.time() < deadline:
+            time.sleep(3)
+            if player_count() > 0 and 0 <= hb_age() < 10:
+                back_up = True
+                break
+        print(f'  player back up: {back_up} (processes={player_count()})')
+        if back_up:
+            print('  OK: player resumed supervision after the new session')
+        else:
+            print('  FAIL: player did not come back in the new session')
+            ok = False
+
+        fresh.terminate()
+
+    finally:
+        # ---------------------------------------------------------------
+        # Leave the machine as we found it.
+        # ---------------------------------------------------------------
+        for p in (watchdog,):
+            if p is not None and p.poll() is None:
+                p.terminate()
+        subprocess.run(
+            ['powershell', '-NoProfile', '-Command',
+             "Get-CimInstance Win32_Process -Filter \"Name='powershell.exe'\" | "
+             "Where-Object { $_.CommandLine -like '*watchdog.ps1*' } | "
+             "ForEach-Object { Stop-Process -Id $_.ProcessId -Force }"],
+            capture_output=True, text=True)
+        kill_players()
+        if STOP_FLAG.exists():
+            STOP_FLAG.unlink()
+        print('\n[cleanup] player stopped, watchdog stopped, stop flag removed')
+
+    print('\n=== last watchdog log lines ===')
+    for line in tail_log(12):
+        print('  ' + line)
+
+    print('=' * 70)
+    print(' RESULT:', 'PASS' if ok else 'FAIL')
+    print('=' * 70)
+    return 0 if ok else 1
+
+
+if __name__ == '__main__':
+    sys.exit(main())
+

windows/test_webview2_embed.py

@@ -0,0 +1,169 @@
+"""Standalone harness for windows/webview2_browser.py — no Kivy, no player.
+
+Creates a plain Win32 window, embeds WebView2 in it via the same
+WebView2Browser class the player uses, navigates to a page, checks that the
+page actually becomes visible, then resizes and tears down.
+
+Run:  windows\\venv\\Scripts\\python.exe windows\\test_webview2_embed.py
+Exit code 0 = embedded engine works.
+"""
+
+import ctypes
+import os
+import sys
+import time
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+
+URL = os.environ.get('KIWY_TEST_URL', 'https://example.com/')
+
+user32 = ctypes.windll.user32
+kernel32 = ctypes.windll.kernel32
+
+WNDPROC = ctypes.WINFUNCTYPE(
+    ctypes.c_int64,
+    ctypes.c_void_p,   # HWND
+    ctypes.c_uint,     # UINT msg
+    ctypes.c_void_p,   # WPARAM
+    ctypes.c_void_p,   # LPARAM
+)
+
+_messages = []
+
+
+@WNDPROC
+def _wnd_proc(hwnd, msg, wparam, lparam):
+    _messages.append(msg)
+    if msg == 0x0002:  # WM_DESTROY
+        user32.PostQuitMessage(0)
+        return 0
+    user32.DefWindowProcW.restype = ctypes.c_int64
+    user32.DefWindowProcW.argtypes = [
+        ctypes.c_void_p, ctypes.c_uint, ctypes.c_void_p, ctypes.c_void_p,
+    ]
+    return user32.DefWindowProcW(hwnd, msg, wparam, lparam)
+
+
+def _make_window(width=1280, height=720):
+    """Register a class and create a visible top-level window."""
+    hinstance = kernel32.GetModuleHandleW(None)
+    class_name = 'KiwyWebView2Test'
+
+    class WNDCLASSEX(ctypes.Structure):
+        _fields_ = [
+            ('cbSize', ctypes.c_uint),
+            ('style', ctypes.c_uint),
+            ('lpfnWndProc', WNDPROC),
+            ('cbClsExtra', ctypes.c_int),
+            ('cbWndExtra', ctypes.c_int),
+            ('hInstance', ctypes.c_void_p),
+            ('hIcon', ctypes.c_void_p),
+            ('hCursor', ctypes.c_void_p),
+            ('hbrBackground', ctypes.c_void_p),
+            ('lpszMenuName', ctypes.c_wchar_p),
+            ('lpszClassName', ctypes.c_wchar_p),
+            ('hIconSm', ctypes.c_void_p),
+        ]
+
+    wc = WNDCLASSEX()
+    wc.cbSize = ctypes.sizeof(WNDCLASSEX)
+    wc.style = 0x0002 | 0x0001  # CS_HREDRAW | CS_VREDRAW
+    wc.lpfnWndProc = _wnd_proc
+    wc.hInstance = hinstance
+    wc.hbrBackground = ctypes.c_void_p(6)  # COLOR_WINDOW+1
+    wc.lpszClassName = class_name
+    user32.RegisterClassExW(ctypes.byref(wc))
+
+    hwnd = user32.CreateWindowExW(
+        0,
+        class_name,
+        'Kiwy WebView2 Embed Test',
+        0x00CF0000 | 0x10000000,  # WS_OVERLAPPEDWINDOW | WS_VISIBLE
+        100, 100, width, height,
+        0, 0, hinstance, 0,
+    )
+    if not hwnd:
+        raise RuntimeError(f'CreateWindowExW failed (err={kernel32.GetLastError()})')
+    user32.UpdateWindow(hwnd)
+    return hwnd
+
+
+def _pump(seconds):
+    """Pump Win32 messages — WebView2 needs this to deliver its callbacks."""
+    deadline = time.monotonic() + seconds
+    while time.monotonic() < deadline:
+        msg = ctypes.wintypes.MSG() if hasattr(ctypes, 'wintypes') else None
+        import ctypes.wintypes as wt
+
+        msg = wt.MSG()
+        while user32.PeekMessageW(ctypes.byref(msg), None, 0, 0, 1):
+            user32.TranslateMessage(ctypes.byref(msg))
+            user32.DispatchMessageW(ctypes.byref(msg))
+        time.sleep(0.02)
+
+
+def main():
+    print('=' * 68)
+    print(' WebView2 embedded-engine test')
+    print('=' * 68)
+
+    from webview2_browser import WebView2Browser
+
+    print(f'SDK dir : {WebView2Browser.__module__}')
+    available = WebView2Browser.is_available()
+    print(f'available: {available}')
+    if not available:
+        print(f'REASON: {WebView2Browser._import_error}')
+        return 1
+
+    hwnd = _make_window()
+    print(f'window  : hwnd=0x{hwnd:x}')
+
+    browser = WebView2Browser(hwnd_provider=lambda: hwnd)
+    started = time.monotonic()
+    ok = browser.show(URL)
+    print(f'show()  : {ok}')
+    if not ok:
+        print(f'FAILED  : {browser.failed_reason}')
+        return 1
+
+    # Drive the Kivy-style Clock poll manually while pumping messages.
+    visible = False
+    while time.monotonic() - started < 25:
+        browser._tick(0)          # consume the async task
+        _pump(0.1)
+        if browser.failed_reason:
+            print(f'FAILED  : {browser.failed_reason}')
+            return 1
+        if browser.is_showing():
+            visible = True
+            break
+    print(f'visible : {visible} after {time.monotonic() - started:.1f}s')
+    if not visible:
+        print('FAILED  : page never became visible')
+        return 1
+
+    # Resize to the signage resolution and confirm it is applied.
+    browser.resize(1920, 1080)
+    _pump(1.0)
+    print(f'resized : 1920x1080 (bounds={browser._size})')
+
+    # Hide, then re-show to prove the controller survives a transition.
+    browser.hide()
+    _pump(0.5)
+    print(f'after hide  -> is_showing={browser.is_showing()}')
+    browser.show(URL)
+    _pump(2.0)
+    print(f'after re-show -> is_showing={browser.is_showing()}')
+
+    browser.shutdown()
+    print('shutdown: ok')
+    print('=' * 68)
+    print(' RESULT: PASS')
+    print('=' * 68)
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())

windows/test_webview2_navigation.py

@@ -0,0 +1,186 @@
+"""Does pythonnet fire NavigationCompleted for a real page load?
+
+This validates the mechanism the player relies on to tell "page loaded" apart
+from "page failed" (e.g. unreachable host on a closed network). If the event
+does not fire, the player cannot detect a failed weblink and would show
+Chromium's error page for the full slot.
+
+Checks three things:
+ 1. the delegate can be constructed and subscribed,
+ 2. it fires for a GOOD page  -> IsSuccess True,
+ 3. it fires for a BAD page   -> IsSuccess False.
+
+Run:  windows\\venv\\Scripts\\python.exe windows\\test_webview2_navigation.py
+Exit code 0 = PASS.
+"""
+
+import ctypes
+import http.server
+import socketserver
+import sys
+import threading
+import time
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+
+PORT = 18766
+PAGE = '<!doctype html><html><body><h1 id="h">KIWY-NAV-OK</h1></body></html>'
+
+
+class _Handler(http.server.BaseHTTPRequestHandler):
+    def do_GET(self):
+        body = PAGE.encode()
+        self.send_response(200)
+        self.send_header('Content-Type', 'text/html')
+        self.send_header('Content-Length', str(len(body)))
+        self.end_headers()
+        self.wfile.write(body)
+
+    def log_message(self, *args):
+        pass
+
+
+def _start_server():
+    socketserver.TCPServer.allow_reuse_address = True
+    httpd = socketserver.TCPServer(('127.0.0.1', PORT), _Handler)
+    threading.Thread(target=httpd.serve_forever, daemon=True).start()
+    return httpd
+
+
+user32 = ctypes.windll.user32
+kernel32 = ctypes.windll.kernel32
+WNDPROC = ctypes.WINFUNCTYPE(
+    ctypes.c_int64, ctypes.c_void_p, ctypes.c_uint, ctypes.c_void_p, ctypes.c_void_p
+)
+
+
+@WNDPROC
+def _wnd_proc(hwnd, msg, wparam, lparam):
+    if msg == 0x0002:
+        user32.PostQuitMessage(0)
+        return 0
+    user32.DefWindowProcW.restype = ctypes.c_int64
+    user32.DefWindowProcW.argtypes = [
+        ctypes.c_void_p, ctypes.c_uint, ctypes.c_void_p, ctypes.c_void_p,
+    ]
+    return user32.DefWindowProcW(hwnd, msg, wparam, lparam)
+
+
+def _make_window(width=1024, height=768):
+    hinstance = kernel32.GetModuleHandleW(None)
+    name = 'KiwyNavTest'
+
+    class WNDCLASSEX(ctypes.Structure):
+        _fields_ = [
+            ('cbSize', ctypes.c_uint), ('style', ctypes.c_uint),
+            ('lpfnWndProc', WNDPROC), ('cbClsExtra', ctypes.c_int),
+            ('cbWndExtra', ctypes.c_int), ('hInstance', ctypes.c_void_p),
+            ('hIcon', ctypes.c_void_p), ('hCursor', ctypes.c_void_p),
+            ('hbrBackground', ctypes.c_void_p), ('lpszMenuName', ctypes.c_wchar_p),
+            ('lpszClassName', ctypes.c_wchar_p), ('hIconSm', ctypes.c_void_p),
+        ]
+
+    wc = WNDCLASSEX()
+    wc.cbSize = ctypes.sizeof(WNDCLASSEX)
+    wc.style = 0x0002 | 0x0001
+    wc.lpfnWndProc = _wnd_proc
+    wc.hInstance = hinstance
+    wc.hbrBackground = ctypes.c_void_p(6)
+    wc.lpszClassName = name
+    user32.RegisterClassExW(ctypes.byref(wc))
+    hwnd = user32.CreateWindowExW(
+        0, name, 'Kiwy Nav Test', 0x00CF0000 | 0x10000000,
+        40, 40, width, height, 0, 0, hinstance, 0,
+    )
+    if not hwnd:
+        raise RuntimeError('CreateWindowExW failed')
+    user32.UpdateWindow(hwnd)
+    return hwnd
+
+
+def _pump(seconds):
+    import ctypes.wintypes as wt
+
+    deadline = time.monotonic() + seconds
+    while time.monotonic() < deadline:
+        msg = wt.MSG()
+        while user32.PeekMessageW(ctypes.byref(msg), None, 0, 0, 1):
+            user32.TranslateMessage(ctypes.byref(msg))
+            user32.DispatchMessageW(ctypes.byref(msg))
+        time.sleep(0.02)
+
+
+def _drive(browser, seconds):
+    deadline = time.monotonic() + seconds
+    while time.monotonic() < deadline:
+        browser._tick(0)
+        _pump(0.05)
+
+
+def _wait_nav(browser, timeout):
+    deadline = time.monotonic() + timeout
+    while time.monotonic() < deadline:
+        browser._tick(0)
+        _pump(0.05)
+        if browser.navigation_succeeded() is not None:
+            return browser.navigation_succeeded()
+    return None
+
+
+def main():
+    print('=' * 68)
+    print(' WebView2 NavigationCompleted test')
+    print('=' * 68)
+
+    from webview2_browser import WebView2Browser
+
+    if not WebView2Browser.is_available():
+        print('FAIL: WebView2 unavailable:', WebView2Browser._import_error)
+        return 1
+
+    httpd = _start_server()
+    good = f'http://127.0.0.1:{PORT}/index.html'
+    # A port nothing listens on: guarantees a real navigation failure.
+    bad = 'http://127.0.0.1:1/missing'
+
+    hwnd = _make_window()
+    browser = WebView2Browser(hwnd_provider=lambda: hwnd)
+
+    ok = True
+
+    print(f'\n[1] good page: {good}')
+    browser.show(good)
+    _drive(browser, 1.0)
+    result = _wait_nav(browser, 20)
+    print(f'    navigation_succeeded = {result}')
+    print(f'    status               = {browser.navigation_status()!r}')
+    if result is not True:
+        print('    FAIL: good page did not report success')
+        ok = False
+
+    print(f'\n[2] bad page: {bad}')
+    browser.show(bad)
+    _drive(browser, 1.0)
+    result = _wait_nav(browser, 25)
+    print(f'    navigation_succeeded = {result}')
+    print(f'    status               = {browser.navigation_status()!r}')
+    if result is not False:
+        print('    FAIL: bad page did not report failure')
+        ok = False
+
+    browser.shutdown()
+    httpd.shutdown()
+    httpd.server_close()
+
+    print('=' * 68)
+    print(' RESULT:', 'PASS' if ok else 'FAIL')
+    if ok:
+        print(' The player can tell a loaded page from a failed one,')
+        print(' so unreachable weblinks are skipped instead of shown blank.')
+    print('=' * 68)
+    return 0 if ok else 1
+
+
+if __name__ == '__main__':
+    sys.exit(main())

windows/test_webview2_offline.py

@@ -0,0 +1,221 @@
+"""Closed-network test: does a WebView2 page still load with no internet?
+
+The signage player lives on an isolated LAN, so the important question is not
+"does example.com load" but "does a page on a reachable *local* host still
+render when there is no internet at all".
+
+This test simulates that properly:
+
+1. Start a tiny HTTP server on 127.0.0.1 serving a known marker page.
+2. Create the WebView2 environment **with the same offline browser arguments
+   the player uses** (webview2_browser._build_environment_options).
+3. Navigate to the local page and confirm the page's actual content arrives —
+   not merely that the controller came up.
+
+It also blocks real internet resolution for the browser by pointing it at the
+local server only, so a pass here means offline playback genuinely works.
+
+Run:  windows\\venv\\Scripts\\python.exe windows\\test_webview2_offline.py
+Exit code 0 = PASS.
+"""
+
+import ctypes
+import http.server
+import os
+import socketserver
+import sys
+import threading
+import time
+import urllib.request
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+
+MARKER = 'KIWY-OFFLINE-LAN-OK'
+PORT = 18765
+
+PAGE = f"""<!doctype html>
+<html><head><meta charset="utf-8"><title>pc</title></head>
+<body style="background:#123;color:#fff;font:48px sans-serif">
+<div id="m">{MARKER}</div>
+</body></html>"""
+
+
+class _Handler(http.server.BaseHTTPRequestHandler):
+    def do_GET(self):
+        body = PAGE.encode('utf-8')
+        self.send_response(200)
+        self.send_header('Content-Type', 'text/html; charset=utf-8')
+        self.send_header('Content-Length', str(len(body)))
+        self.end_headers()
+        self.wfile.write(body)
+
+    def log_message(self, *args):
+        pass  # keep the test output clean
+
+
+def _start_server():
+    socketserver.TCPServer.allow_reuse_address = True
+    httpd = socketserver.TCPServer(('127.0.0.1', PORT), _Handler)
+    thread = threading.Thread(target=httpd.serve_forever, daemon=True)
+    thread.start()
+    return httpd
+
+
+# ── Win32 window (same approach as test_webview2_embed.py) ──────────
+user32 = ctypes.windll.user32
+kernel32 = ctypes.windll.kernel32
+
+WNDPROC = ctypes.WINFUNCTYPE(
+    ctypes.c_int64, ctypes.c_void_p, ctypes.c_uint, ctypes.c_void_p, ctypes.c_void_p
+)
+
+
+@WNDPROC
+def _wnd_proc(hwnd, msg, wparam, lparam):
+    if msg == 0x0002:  # WM_DESTROY
+        user32.PostQuitMessage(0)
+        return 0
+    user32.DefWindowProcW.restype = ctypes.c_int64
+    user32.DefWindowProcW.argtypes = [
+        ctypes.c_void_p, ctypes.c_uint, ctypes.c_void_p, ctypes.c_void_p,
+    ]
+    return user32.DefWindowProcW(hwnd, msg, wparam, lparam)
+
+
+def _make_window(width=1280, height=720):
+    hinstance = kernel32.GetModuleHandleW(None)
+    class_name = 'KiwyWebView2OfflineTest'
+
+    class WNDCLASSEX(ctypes.Structure):
+        _fields_ = [
+            ('cbSize', ctypes.c_uint), ('style', ctypes.c_uint),
+            ('lpfnWndProc', WNDPROC), ('cbClsExtra', ctypes.c_int),
+            ('cbWndExtra', ctypes.c_int), ('hInstance', ctypes.c_void_p),
+            ('hIcon', ctypes.c_void_p), ('hCursor', ctypes.c_void_p),
+            ('hbrBackground', ctypes.c_void_p), ('lpszMenuName', ctypes.c_wchar_p),
+            ('lpszClassName', ctypes.c_wchar_p), ('hIconSm', ctypes.c_void_p),
+        ]
+
+    wc = WNDCLASSEX()
+    wc.cbSize = ctypes.sizeof(WNDCLASSEX)
+    wc.style = 0x0002 | 0x0001
+    wc.lpfnWndProc = _wnd_proc
+    wc.hInstance = hinstance
+    wc.hbrBackground = ctypes.c_void_p(6)
+    wc.lpszClassName = class_name
+    user32.RegisterClassExW(ctypes.byref(wc))
+
+    hwnd = user32.CreateWindowExW(
+        0, class_name, 'Kiwy Offline LAN Test',
+        0x00CF0000 | 0x10000000, 60, 60, width, height, 0, 0, hinstance, 0,
+    )
+    if not hwnd:
+        raise RuntimeError('CreateWindowExW failed')
+    user32.UpdateWindow(hwnd)
+    return hwnd
+
+
+def _pump(seconds):
+    import ctypes.wintypes as wt
+
+    deadline = time.monotonic() + seconds
+    while time.monotonic() < deadline:
+        msg = wt.MSG()
+        while user32.PeekMessageW(ctypes.byref(msg), None, 0, 0, 1):
+            user32.TranslateMessage(ctypes.byref(msg))
+            user32.DispatchMessageW(ctypes.byref(msg))
+        time.sleep(0.02)
+
+
+def main():
+    print('=' * 68)
+    print(' WebView2 closed-network (LAN-only) test')
+    print('=' * 68)
+
+    from webview2_browser import (
+        WebView2Browser, _build_environment_options, _offline_browser_arguments,
+    )
+
+    if not WebView2Browser.is_available():
+        print('FAIL: WebView2 unavailable:', WebView2Browser._import_error)
+        return 1
+
+    print('offline browser args:')
+    for flag in _offline_browser_arguments().split():
+        print(f'  {flag}')
+
+    options = _build_environment_options()
+    if options is None:
+        print('\nFAIL: could not build offline environment options')
+        return 1
+    print(f'\nAdditionalBrowserArguments set: '
+          f'{bool(options.AdditionalBrowserArguments)}')
+
+    httpd = _start_server()
+    url = f'http://127.0.0.1:{PORT}/dashboard'
+    print(f'\nlocal server: {url}')
+
+    hwnd = _make_window()
+    browser = WebView2Browser(hwnd_provider=lambda: hwnd)
+
+    started = time.monotonic()
+    if not browser.show(url):
+        print('FAIL: show() returned False:', browser.failed_reason)
+        httpd.shutdown()
+        return 1
+
+    visible = False
+    deadline = time.monotonic() + 25
+    while time.monotonic() < deadline:
+        browser._tick(0)
+        _pump(0.1)
+        if browser.failed_reason:
+            print('FAIL:', browser.failed_reason)
+            httpd.shutdown()
+            return 1
+        if browser.is_showing():
+            visible = True
+            break
+    print(f'page visible : {visible} after {time.monotonic() - started:.1f}s')
+
+    # Confirm the page's REAL CONTENT arrived, not just the controller.
+    #
+    # NOTE: ExecuteScriptAsync also returns a .NET Task. Calling .Result here
+    # would deadlock — the continuation needs this thread's message pump, which
+    # is exactly the mistake this file otherwise exists to catch. Poll it while
+    # pumping messages instead.
+    body = ''
+    if visible:
+        try:
+            task = browser._webview.ExecuteScriptAsync(
+                "document.getElementById('m').innerText"
+            )
+            deadline = time.monotonic() + 10
+            while time.monotonic() < deadline:
+                _pump(0.05)
+                if task.IsCompleted:
+                    body = task.Result
+                    break
+        except Exception as exc:
+            print(f'note: script eval failed ({exc})')
+    got_marker = MARKER in (body or '')
+    print(f'page content : {"marker found" if got_marker else "MARKER MISSING"} '
+          f'({(body or "")[:60]})')
+
+    browser.shutdown()
+    httpd.shutdown()
+    httpd.server_close()
+
+    ok = visible and got_marker
+    print('=' * 68)
+    print(' RESULT:', 'PASS' if ok else 'FAIL')
+    if ok:
+        print(' A local page renders with all internet traffic disabled —')
+        print(' web links work on a closed network.')
+    print('=' * 68)
+    return 0 if ok else 1
+
+
+if __name__ == '__main__':
+    sys.exit(main())

windows/test_webview2_runtime.py

@@ -0,0 +1,106 @@
+"""Standalone test for windows/webview2_runtime.py — no Kivy, no player.
+
+Checks the runtime-detection logic and (optionally) a real silent install.
+
+Run:  windows\\venv\\Scripts\\python.exe windows\\test_webview2_runtime.py
+      windows\\venv\\Scripts\\python.exe windows\\test_webview2_runtime.py --install
+
+Without --install this is read-only: it reports the detected version and which
+installer would be used. With --install it forces the installer path to run
+(useful on a machine that genuinely lacks the Runtime).
+Exit code 0 = checks passed.
+"""
+
+import os
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+
+import webview2_runtime as w  # noqa: E402
+
+
+def main():
+    force_install = '--install' in sys.argv
+
+    print('=' * 68)
+    print(' WebView2 Runtime detection test')
+    print('=' * 68)
+
+    version = w.get_runtime_version()
+    installed = w.is_runtime_installed()
+    print(f'registry/SDK version : {version or "(none)"}')
+    print(f'is_runtime_installed : {installed}')
+
+    installer, kind = w.find_installer()
+    print(f'installer            : {installer}')
+    print(f'installer kind       : {kind}')
+    print(f'describe()           : {w.describe()}')
+
+    ok = True
+
+    # Version parsing must be comparable and tolerant of junk.
+    cases = {
+        '152.0.4191.66': (152, 0, 4191, 66),
+        '1.2': (1, 2, 0, 0),
+        '': (0, 0, 0, 0),
+        None: (0, 0, 0, 0),
+    }
+    for raw, expected in cases.items():
+        got = w._parse_version(raw)
+        flag = 'ok' if got == expected else 'FAIL'
+        if got != expected:
+            ok = False
+        print(f'  parse({raw!r:16}) -> {got}  [{flag}]')
+
+    # An installer must be discoverable: without one, a Runtime-less machine
+    # has no way to recover.
+    if installer is None:
+        print('\nWARNING: no installer found — a machine without the Runtime '
+              'cannot self-heal.')
+        print('Run:  .\\webview2_runtime\\download_runtime_installers.ps1')
+    else:
+        sig_status = 'n/a'
+        try:
+            import subprocess
+
+            out = subprocess.run(
+                ['powershell', '-NoProfile', '-Command',
+                 f'(Get-AuthenticodeSignature -LiteralPath "{installer}").Status'],
+                capture_output=True, text=True, timeout=60,
+            )
+            sig_status = (out.stdout or '').strip() or 'unknown'
+        except Exception as exc:
+            sig_status = f'check failed: {exc}'
+        print(f'signature            : {sig_status}')
+
+    if force_install:
+        print('\n--install given: running the silent installer path...')
+        result = w.ensure_runtime(timeout=600)
+        print(f'ensure_runtime() -> {result}')
+        if not result.get('installed'):
+            ok = False
+    else:
+        # Read-only path: ensure_runtime must be a no-op that reports presence.
+        result = w.ensure_runtime(timeout=60)
+        print(f'\nensure_runtime() (read-only) -> {result}')
+        if installed and not result.get('installed'):
+            print('FAIL: Runtime present but ensure_runtime() disagreed')
+            ok = False
+        if result.get('action') not in ('already-present', 'installer-missing',
+                                        'skipped-recent-failure',
+                                        'installed-standalone',
+                                        'installed-bootstrapper',
+                                        'attempted-standalone',
+                                        'attempted-bootstrapper'):
+            print(f'FAIL: unexpected action {result.get("action")!r}')
+            ok = False
+
+    print('=' * 68)
+    print(' RESULT:', 'PASS' if ok else 'FAIL')
+    print('=' * 68)
+    return 0 if ok else 1
+
+
+if __name__ == '__main__':
+    sys.exit(main())

windows/verify_sendinput_fix.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+"""Rigorous verification: is the fixed SendInput code in the compiled run_win?"""
+import marshal
+import types
+import dis
+from PyInstaller.archive.readers import CArchiveReader
+
+EXE = r'dist\KiwySignagePlayer\KiwySignagePlayer.exe'
+
+
+def collect_strings(code, acc):
+    for c in code.co_consts:
+        if isinstance(c, str):
+            acc.append(c)
+        elif isinstance(c, types.CodeType):
+            collect_strings(c, acc)
+
+
+def collect_codes(code, acc):
+    acc.append(code)
+    for c in code.co_consts:
+        if isinstance(c, types.CodeType):
+            collect_codes(c, acc)
+
+
+def main():
+    arc = CArchiveReader(EXE)
+    data = arc.extract('run_win')
+    code = marshal.loads(data)
+
+    all_codes = []
+    collect_codes(code, all_codes)
+    strings = []
+    collect_strings(code, strings)
+
+    # 1) c_ulonglong can ONLY come from the fixed code (old used c_ulong + POINTER)
+    has_c_ulonglong = any('c_ulonglong' in c.co_names for c in all_codes)
+    print(f'c_ulonglong in co_names of any code object: {has_c_ulonglong}')
+
+    # 2) INPUTUNION should be STORE_DEREF/STORE_NAME'd inside
+    #    _force_foreground_sendinput (classes are defined in a closure,
+    #    so they're stored via STORE_DEREF).
+    store_names = set()
+    for c in all_codes:
+        for instr in dis.get_instructions(c):
+            if instr.opname in ('STORE_NAME', 'STORE_FAST', 'STORE_DEREF'):
+                store_names.add(instr.argval)
+    print(f'INPUTUNION stored: {"INPUTUNION" in store_names}')
+    print(f'KEYBDINPUT stored: {"KEYBDINPUT" in store_names}')
+    print(f'MOUSEINPUT stored: {"MOUSEINPUT" in store_names}')
+    print(f'HARDWAREINPUT stored: {"HARDWAREINPUT" in store_names}')
+
+    # 3) The new code uses INPUT() + field assignment (type, u.ki.wVk, u.ki.dwFlags)
+    names = set()
+    for c in all_codes:
+        names.update(c.co_names)
+    print(f'Has "u" attribute usage: {"u" in names}')
+
+    # 4) string markers
+    print(f'string "undersized buffer": {any("undersized buffer" in s for s in strings)}')
+    print(f'string "real Win32 x64": {any("real Win32 x64" in s for s in strings)}')
+    print(f'string "ULONG_PTR": {any("ULONG_PTR" in s for s in strings)}')
+
+    # 5) Console-window fix in _find_kivy_hwnd: cellvars/freevars + tuple consts
+    find_kv = [c for c in all_codes if c.co_name == '_find_kivy_hwnd']
+    cell_vars = set()
+    for c in find_kv:
+        cell_vars.update(c.co_cellvars)
+        cell_vars.update(c.co_freevars)
+    enum_cb = [c for c in all_codes
+               if c.co_name == '_enum_cb' and 'SDL_CLASSES' in c.co_freevars]
+    tuple_strs = set()
+    for c in enum_cb:
+        for x in c.co_consts:
+            if isinstance(x, tuple):
+                tuple_strs.update(str(v) for v in x)
+    print(f'_find_kivy_hwnd cell/free vars (SDL_CLASSES/sdl_windows/our_pid): '
+          f'{"SDL_CLASSES" in cell_vars and "sdl_windows" in cell_vars and "our_pid" in cell_vars}')
+    print(f'console class excluded (ConsoleWindowClass in _enum_cb tuple): '
+          f'{"ConsoleWindowClass" in tuple_strs}')
+
+    verdict = has_c_ulonglong and 'INPUTUNION' in store_names
+    console_fix = ('SDL_CLASSES' in cell_vars and 'ConsoleWindowClass' in tuple_strs)
+    print(f'\nVerdict SendInput: {"FIX PRESENT" if verdict else "FIX ABSENT - rebuild needed"}')
+    print(f'Verdict console-hwnd: {"FIX PRESENT" if console_fix else "FIX ABSENT - rebuild needed"}')
+
+
+if __name__ == '__main__':
+    main()

windows/version_info.txt

@@ -0,0 +1,43 @@
+# UTF-8
+#
+# Windows version resource for KiwySignagePlayer.exe
+# This file is used by PyInstaller (version=) to embed publisher/product
+# metadata into the executable so Windows Smart App Control / SmartScreen
+# can identify the app instead of flagging it as "Unknown publisher".
+#
+# Note: A code-signing certificate is still required for a fully trusted
+# publisher name; this metadata at least names the product/company and
+# supplies a version number.
+#
+VSVersionInfo(
+  ffi=FixedFileInfo(
+    filevers=(1, 2, 0, 0),
+    prodvers=(1, 2, 0, 0),
+    mask=0x3f,
+    flags=0x0,
+    OS=0x40004,
+    fileType=0x1,
+    subtype=0x0,
+    date=(0, 0)
+  ),
+  kids=[
+    StringFileInfo(
+      [
+        StringTable(
+          '040904B0',
+          [
+            StringStruct('CompanyName', 'Kiwy Signage'),
+            StringStruct('FileDescription', 'Kiwy Signage Player - Digital Signage Player'),
+            StringStruct('FileVersion', '1.2.0.0'),
+            StringStruct('InternalName', 'KiwySignagePlayer'),
+            StringStruct('LegalCopyright', 'Copyright (c) 2026 Kiwy Signage'),
+            StringStruct('OriginalFilename', 'KiwySignagePlayer.exe'),
+            StringStruct('ProductName', 'Kiwy Signage Player'),
+            StringStruct('ProductVersion', '1.2.0.0'),
+          ]
+        )
+      ]
+    ),
+    VarFileInfo([VarStruct('Translation', [1033, 1200])])
+  ]
+)

windows/watchdog.ps1

@@ -0,0 +1,441 @@
+<#
+=====================================================================
+ watchdog.ps1 - keep the Kiwy Signage Player running 24/7 on Windows
+=====================================================================
+
+WHAT THIS DOES
+  Supervises KiwySignagePlayer.exe and restarts it when it:
+
+    * CRASHES  - the process disappeared without the user asking it to.
+    * HANGS    - the process is alive but its heartbeat file has gone stale,
+                 which means the UI thread is wedged (a frozen player looks
+                 exactly like a working one from the outside).
+
+  This is the Windows counterpart of the Linux `start.sh` watchdog, which has
+  been running the player on the Raspberry Pi deployments.
+
+HOW THE "PASSWORD ONLY" EXIT IS PRESERVED
+  The only supported way to stop the player is the exit screen's password.
+  On success the player writes a stop-flag file next to its .exe:
+
+      .player_stop_requested
+
+  The flag is SESSION SCOPED:
+
+    * While the flag exists, this watchdog will NOT restart the player; it
+      stops supervising and exits (the machine is left with the player off).
+    * Every time the watchdog starts, it CLEARS the flag first, which is what
+      makes a fresh launch a fresh session. So starting the player again is
+      all it takes to resume - there is no file to delete by hand.
+
+CRASH-LOOP BREAKER
+  A player that cannot stay up (bad config, missing media, GPU problem) would
+  otherwise be restarted forever. If the player dies `CrashLoopMaxFailures`
+  times inside `CrashLoopWindowMin` minutes WITHOUT ever becoming healthy,
+  the watchdog backs off for `CrashLoopBackoffMin` minutes before retrying,
+  and keeps the reason in the log.
+
+WHAT IT DOES NOT DO
+  It does not install itself to run at boot/login - start it with
+  `start_player_watchdog.bat`. It also cannot watch the player before the
+  player has ever run, so a totally broken install simply logs and backs off.
+
+USAGE
+  powershell -NoProfile -ExecutionPolicy Bypass -File watchdog.ps1
+  powershell -NoProfile -ExecutionPolicy Bypass -File watchdog.ps1 -Status
+
+  Stop it with Ctrl+C in its window (this does NOT stop the player; it only
+  stops supervising).
+#>
+
+[CmdletBinding()]
+param(
+    # Path to the player executable. Defaults to the standard build output.
+    [string]$ExePath,
+
+    # How often the supervisor checks on the player.
+    [int]$HealthCheckIntervalSec = 15,
+
+    # A heartbeat older than this means the player is wedged, since the player
+    # rewrites it every 10 seconds. Matches the proven Linux value of 60s.
+    [int]$HeartbeatStaleSec = 60,
+
+    # After launching, give the player this long to write its first heartbeat
+    # (startup shows a splash video, so it is not instant) before health
+    # checks count against it.
+    [int]$StartupGraceSec = 120,
+
+    # Pause before restarting a player that died.
+    [int]$RestartDelaySec = 5,
+
+    # Crash-loop breaker (see header).
+    [int]$CrashLoopWindowMin = 10,
+    [int]$CrashLoopMaxFailures = 5,
+    [int]$CrashLoopBackoffMin = 10,
+
+    # Report current state and exit - never launches or kills anything.
+    [switch]$Status
+)
+
+$ErrorActionPreference = 'Stop'
+
+# UTF-8 so accented paths in logs are readable.
+$OutputEncoding = [System.Text.Encoding]::UTF8
+
+# ---------------------------------------------------------------------
+# Paths
+# ---------------------------------------------------------------------
+function Resolve-ExePath {
+    param([string]$Override)
+
+    if ($Override) {
+        if (-not (Test-Path -LiteralPath $Override)) {
+            throw "Player executable not found: $Override"
+        }
+        return (Resolve-Path -LiteralPath $Override).Path
+    }
+
+    $candidates = @(
+        (Join-Path $PSScriptRoot 'dist\KiwySignagePlayer\KiwySignagePlayer.exe'),
+        (Join-Path $PSScriptRoot 'KiwySignagePlayer.exe')
+    )
+    foreach ($c in $candidates) {
+        if (Test-Path -LiteralPath $c) {
+            return (Resolve-Path -LiteralPath $c).Path
+        }
+    }
+    throw ("Could not find KiwySignagePlayer.exe. Looked in:`n  " +
+           ($candidates -join "`n  "))
+}
+
+$ExeFull = Resolve-ExePath -Override $ExePath
+$PlayerDir = Split-Path -Parent $ExeFull
+$HeartbeatFile = Join-Path $PlayerDir '.player_heartbeat'
+$StopFlagFile = Join-Path $PlayerDir '.player_stop_requested'
+$LogDir = Join-Path $PlayerDir 'logs'
+$LogFile = Join-Path $LogDir 'watchdog.log'
+$ProcessName = [System.IO.Path]::GetFileNameWithoutExtension($ExeFull)
+
+New-Item -ItemType Directory -Force -Path $LogDir | Out-Null
+
+# ---------------------------------------------------------------------
+# Logging (kept tiny and never throws)
+# ---------------------------------------------------------------------
+function Write-Log {
+    param(
+        [Parameter(Mandatory = $true)][string]$Message,
+        [ValidateSet('INFO', 'WARN', 'ERROR')][string]$Level = 'INFO'
+    )
+    $line = "[{0}] [{1}] {2}" -f (Get-Date -Format 'yyyy-MM-dd HH:mm:ss'), $Level, $Message
+    Write-Host $line
+    try {
+        Add-Content -LiteralPath $LogFile -Value $line -Encoding UTF8
+    } catch {
+        # Logging must never take the supervisor down.
+    }
+}
+
+# ---------------------------------------------------------------------
+# Player process helpers
+# ---------------------------------------------------------------------
+function Get-PlayerProcesses {
+    # NOTE: the packaged player is TWO processes on Windows - the PyInstaller
+    # bootloader parent and the child that owns the SDL window. Both share the
+    # image name, so selecting by name covers the whole tree.
+    @(Get-Process -Name $ProcessName -ErrorAction SilentlyContinue)
+}
+
+function Get-PlayerRootPid {
+    $procs = Get-PlayerProcesses
+    if ($procs.Count -eq 0) { return $null }
+    # Prefer the child (it has the main window); fall back to any.
+    $withWindow = $procs | Where-Object { $_.MainWindowHandle -ne 0 } | Select-Object -First 1
+    if ($withWindow) { return $withWindow.Id }
+    return ($procs | Select-Object -First 1).Id
+}
+
+function Test-HeartbeatFresh {
+    param([int]$MaxAgeSec)
+
+    if (-not (Test-Path -LiteralPath $HeartbeatFile)) {
+        return $false
+    }
+    try {
+        $age = (Get-Date).ToUniversalTime() - `
+               (Get-Item -LiteralPath $HeartbeatFile).LastWriteTimeUtc
+        return ($age.TotalSeconds -lt $MaxAgeSec)
+    } catch {
+        return $false
+    }
+}
+
+function Get-HeartbeatAgeSec {
+    if (-not (Test-Path -LiteralPath $HeartbeatFile)) { return -1 }
+    try {
+        $age = (Get-Date).ToUniversalTime() - `
+               (Get-Item -LiteralPath $HeartbeatFile).LastWriteTimeUtc
+        return [int]$age.TotalSeconds
+    } catch {
+        return -1
+    }
+}
+
+function Stop-PlayerTree {
+    param([int]$RootPid)
+
+    # /T kills the PyInstaller child too; without it the visible player window
+    # would survive and the next launch would collide with it.
+    try {
+        & taskkill.exe /F /T /PID $RootPid 2>&1 | Out-Null
+    } catch {
+        Write-Log "taskkill failed for pid $RootPid ($($_.Exception.Message)); forcing by name" 'WARN'
+    }
+
+    # Belt and braces: make sure no stragglers remain.
+    $deadline = (Get-Date).AddSeconds(15)
+    while ((Get-Date) -lt $deadline) {
+        if ((Get-PlayerProcesses).Count -eq 0) { return $true }
+        Start-Sleep -Milliseconds 500
+    }
+    foreach ($p in Get-PlayerProcesses) {
+        try { Stop-Process -Id $p.Id -Force -ErrorAction SilentlyContinue } catch { }
+    }
+    Start-Sleep -Milliseconds 500
+    return ((Get-PlayerProcesses).Count -eq 0)
+}
+
+function Start-Player {
+    Write-Log "Launching player: $ExeFull"
+    # Start in the player's own folder: the app resolves config/media/playlists
+    # relative to its working directory.
+    Start-Process -FilePath $ExeFull -WorkingDirectory $PlayerDir | Out-Null
+}
+
+# ---------------------------------------------------------------------
+# -Status : report and exit (never mutates anything)
+# ---------------------------------------------------------------------
+if ($Status) {
+    $procs = Get-PlayerProcesses
+    $pid0 = Get-PlayerRootPid
+    $age = Get-HeartbeatAgeSec
+    Write-Host '=========================================='
+    Write-Host ' Kiwy Signage Player - Watchdog Status'
+    Write-Host '=========================================='
+    Write-Host ("Executable   : {0}" -f $ExeFull)
+    Write-Host ("Processes    : {0}" -f $procs.Count)
+    if ($pid0) { Write-Host ("Root PID     : {0}" -f $pid0) }
+    if ($age -ge 0) {
+        Write-Host ("Heartbeat    : {0}s old" -f $age)
+        if ($age -lt $HeartbeatStaleSec) {
+            Write-Host 'Health       : HEALTHY' -ForegroundColor Green
+        } else {
+            Write-Host 'Health       : STALE (player may be hung)' -ForegroundColor Yellow
+        }
+    } else {
+        Write-Host 'Heartbeat    : (not present - player has not started)'
+    }
+    if (Test-Path -LiteralPath $StopFlagFile) {
+        Write-Host 'Stop flag    : PRESENT (password exit was used)'
+        Write-Host '               a new launch clears it' -ForegroundColor Yellow
+    } else {
+        Write-Host 'Stop flag    : absent (watchdog would restart on failure)'
+    }
+    Write-Host ("Log          : {0}" -f $LogFile)
+    exit 0
+}
+
+# ---------------------------------------------------------------------
+# Session start: clear the stop flag
+# ---------------------------------------------------------------------
+# This is what makes the flag session-scoped: the user's password exit ends
+# the CURRENT session, and the next launch begins a new one.
+if (Test-Path -LiteralPath $StopFlagFile) {
+    try {
+        Remove-Item -LiteralPath $StopFlagFile -Force
+        Write-Log 'Cleared the stop flag from the previous session - new session started'
+    } catch {
+        Write-Log "Could not clear the stop flag ($($_.Exception.Message))" 'WARN'
+    }
+}
+
+Write-Log '=================================================='
+Write-Log "Watchdog starting (exe=$ProcessName, check=${HealthCheckIntervalSec}s, stale=${HeartbeatStaleSec}s)"
+Write-Log "Crash-loop breaker: ${CrashLoopMaxFailures} failures / ${CrashLoopWindowMin} min -> ${CrashLoopBackoffMin} min backoff"
+Write-Log 'Stop the WATCHDOG with Ctrl+C. Stop the PLAYER via the exit password.'
+Write-Log '=================================================='
+
+# ---------------------------------------------------------------------
+# Crash-loop breaker
+# ---------------------------------------------------------------------
+# A player that cannot stay up (broken config, missing media, GPU fault) would
+# otherwise be restarted forever, filling the log and thrashing the machine.
+# If it fails CrashLoopMaxFailures times inside CrashLoopWindowMin minutes
+# WITHOUT ever becoming healthy, wait CrashLoopBackoffMin minutes before the
+# next attempt. Returns $true when a backoff was performed.
+function Invoke-CrashLoopBackoff {
+    param([System.Collections.ArrayList]$Failures)
+
+    if ($Failures.Count -lt $CrashLoopMaxFailures) { return $false }
+
+    $windowStart = (Get-Date).AddMinutes(-$CrashLoopWindowMin)
+    $recent = @($Failures | Where-Object { $_ -gt $windowStart })
+    if ($recent.Count -lt $CrashLoopMaxFailures) {
+        # Only old failures remain; forget them so they cannot accumulate.
+        $Failures.Clear()
+        return $false
+    }
+
+    Write-Log ("Player failed $($recent.Count) times in the last " +
+               "${CrashLoopWindowMin} minutes without ever becoming healthy.") 'ERROR'
+    Write-Log "Backing off for ${CrashLoopBackoffMin} minutes before the next attempt." 'ERROR'
+    Write-Log "Investigate $LogDir (and the player's own logs next to it)." 'ERROR'
+
+    $backoffEnd = (Get-Date).AddMinutes($CrashLoopBackoffMin)
+    while ((Get-Date) -lt $backoffEnd) {
+        Start-Sleep -Seconds 5
+        if (Test-Path -LiteralPath $StopFlagFile) {
+            Write-Log 'Stop flag appeared during backoff - standing down.'
+            $Failures.Clear()
+            return $true
+        }
+    }
+    $Failures.Clear()
+    Write-Log 'Backoff finished - resuming supervision.'
+    return $true
+}
+
+# ---------------------------------------------------------------------
+# Main supervision loop
+# ---------------------------------------------------------------------
+# Two DIFFERENT failures need two different reactions, and confusing them
+# would be harmful:
+#
+#   * "never became healthy" - a slow start-up, a bad install, or the
+#     first-run setup screen. Killing on this would restart forever and could
+#     interrupt an operator entering settings. Handled by the crash-loop
+#     breaker, with a long hard cap before we intervene.
+#   * "was healthy, then went silent" - the app is wedged. This is the case
+#     that must be restarted promptly.
+#
+# So a hang is only declared once we have actually SEEN a fresh heartbeat.
+$failureTimestamps = New-Object System.Collections.ArrayList
+$hasBeenHealthy = $false
+
+while ($true) {
+
+    # ---- The operator asked to exit: stand down ----------------------
+    if (Test-Path -LiteralPath $StopFlagFile) {
+        Write-Log 'Stop flag present - the operator exited with the password.'
+        Write-Log 'Watchdog will NOT restart the player. Start it again to resume.'
+        break
+    }
+
+    $procs = Get-PlayerProcesses
+
+    # ================================================================
+    # Case 1: the player is not running
+    # ================================================================
+    if ($procs.Count -eq 0) {
+        Write-Log 'Player is not running - starting it.'
+
+        try {
+            Start-Player
+        } catch {
+            Write-Log "Failed to launch the player: $($_.Exception.Message)" 'ERROR'
+            [void]$failureTimestamps.Add((Get-Date))
+            [void](Invoke-CrashLoopBackoff -Failures $failureTimestamps)
+            Start-Sleep -Seconds $RestartDelaySec
+            continue
+        }
+
+        $launchTime = Get-Date
+        $hasBeenHealthy = $false
+
+        # Watch the start-up window: break early the moment it is healthy,
+        # and notice immediately if it dies.
+        $diedEarly = $false
+        $graceEnd = $launchTime.AddSeconds($StartupGraceSec)
+        while ((Get-Date) -lt $graceEnd) {
+            Start-Sleep -Seconds 2
+            if (Test-Path -LiteralPath $StopFlagFile) { break }
+            if ((Get-PlayerProcesses).Count -eq 0) { $diedEarly = $true; break }
+            if (Test-HeartbeatFresh -MaxAgeSec $HeartbeatStaleSec) {
+                $hasBeenHealthy = $true
+                break
+            }
+        }
+
+        if ($diedEarly -and -not (Test-Path -LiteralPath $StopFlagFile)) {
+            [void]$failureTimestamps.Add((Get-Date))
+            Write-Log ("Player exited during start-up (within the ${StartupGraceSec}s grace window).") 'WARN'
+            [void](Invoke-CrashLoopBackoff -Failures $failureTimestamps)
+            Write-Log ("Waiting ${RestartDelaySec}s before retrying...")
+            Start-Sleep -Seconds $RestartDelaySec
+        } elseif ($hasBeenHealthy) {
+            Write-Log 'Player started and is reporting a fresh heartbeat.'
+            $failureTimestamps.Clear()
+        } else {
+            Write-Log 'Player is running but has not reported a heartbeat yet - continuing to watch.' 'WARN'
+        }
+        continue
+    }
+
+    # ================================================================
+    # Case 2: the player is running - is it actually working?
+    # ================================================================
+    if (Test-HeartbeatFresh -MaxAgeSec $HeartbeatStaleSec) {
+        # Healthy. Forget past failures - only CONSECUTIVE ones matter.
+        if (-not $hasBeenHealthy -or $failureTimestamps.Count -gt 0) {
+            Write-Log 'Player is healthy.'
+        }
+        $hasBeenHealthy = $true
+        $failureTimestamps.Clear()
+        Start-Sleep -Seconds $HealthCheckIntervalSec
+        continue
+    }
+
+    $age = Get-HeartbeatAgeSec
+    $ageText = if ($age -lt 0) { 'no heartbeat file' } else { "${age}s old" }
+
+    if ($hasBeenHealthy) {
+        # ---- The real hang: it WAS working and has gone silent ----------
+        Write-Log ("Player was healthy but its heartbeat is now stale ({0}, limit ${HeartbeatStaleSec}s) - it is hung." -f $ageText) 'ERROR'
+
+        $rootPid = Get-PlayerRootPid
+        if ($rootPid) {
+            Write-Log "Killing the hung player (pid $rootPid) and its children..."
+            [void](Stop-PlayerTree -RootPid $rootPid)
+        }
+        $hasBeenHealthy = $false
+        [void]$failureTimestamps.Add((Get-Date))
+
+        if (Test-Path -LiteralPath $StopFlagFile) { continue }
+        [void](Invoke-CrashLoopBackoff -Failures $failureTimestamps)
+        Write-Log ("Waiting ${RestartDelaySec}s before restarting...")
+        Start-Sleep -Seconds $RestartDelaySec
+        continue
+    }
+
+    # ---- Running but never healthy: be patient, then give up -----------
+    # Deliberately generous: a slow machine still inside its start-up window
+    # must not be killed, and neither must the first-run setup screen.
+    $stuckLimitSec = $StartupGraceSec * 2
+    if ($null -eq $launchTime) { $launchTime = Get-Date }
+    $upSec = ((Get-Date) - $launchTime).TotalSeconds
+
+    if ($upSec -lt $stuckLimitSec) {
+        Write-Log ("Player is up but not yet healthy ({0}); still inside the ${stuckLimitSec}s start-up allowance." -f $ageText) 'WARN'
+        Start-Sleep -Seconds $HealthCheckIntervalSec
+        continue
+    }
+
+    Write-Log ("Player has not become healthy within ${stuckLimitSec}s ({0}) - restarting it." -f $ageText) 'ERROR'
+    $rootPid = Get-PlayerRootPid
+    if ($rootPid) { [void](Stop-PlayerTree -RootPid $rootPid) }
+    [void]$failureTimestamps.Add((Get-Date))
+    [void](Invoke-CrashLoopBackoff -Failures $failureTimestamps)
+    Write-Log ("Waiting ${RestartDelaySec}s before retrying...")
+    Start-Sleep -Seconds $RestartDelaySec
+}
+
+Write-Log 'Watchdog exited.'

windows/webview2_browser.py

@@ -0,0 +1,718 @@
+"""webview2_browser.py — Embedded WebView2 (Edge/Chromium) INSIDE Kivy's window.
+
+Why this exists
+---------------
+The old weblink engines launched a *separate* browser process (Chrome/Edge
+kiosk subprocess, or the dormant `cef_browser.py`). That model caused every
+weblink bug in the tracker: the browser opening behind the Kivy window, being
+handed off to an existing instance and exiting instantly, fighting for
+foreground/z-order, and leaking `msedge.exe`/`chrome.exe` processes that were
+never closed.
+
+WebView2 renders as a **child HWND of Kivy's own SDL window**, so:
+
+  * no separate top-level window → nothing can open "in the background",
+  * nothing to hand the URL off to → no instant-exit hand-off,
+  * no z-order/foreground fight → it is literally a child of our window,
+  * teardown is ours → no leaked browser processes,
+  * the page renders at exactly the rectangle we give it (1920x1080 or
+    whatever the Kivy window currently is).
+
+Licensing / distribution: the WebView2 **runtime** is a free, evergreen,
+Microsoft-shipped component (already present on this host as
+``152.0.4191.66``). We only ship the small managed SDK + native loader DLLs.
+
+Implementation notes
+--------------------
+* We talk to the .NET SDK through **pythonnet** (``clr``).
+* Every WebView2 API is async (returns a .NET ``Task``). We must NOT call
+  ``.GetAwaiter().GetResult()``: the continuation needs the *same* thread's
+  message pump, so blocking would deadlock. Instead each task is **polled from
+  Kivy's Clock** (the SDL thread, which pumps Win32 messages) and consumed when
+  ``IsCompleted``. This mirrors how the old CEF code pumped via the Clock.
+* All public methods are safe to call from the Kivy main thread.
+"""
+
+from __future__ import annotations
+
+import ctypes
+import os
+import sys
+import threading
+from pathlib import Path
+
+# ── SDK discovery ────────────────────────────────────────────────────
+# The managed Microsoft.Web.WebView2.Core.dll and the native
+# WebView2Loader.dll must sit in a folder we can find both in development and
+# inside the PyInstaller bundle.
+_SDK_ENV_VAR = 'KIWY_WEBVIEW2_SDK'
+
+
+def _sdk_candidates():
+    here = Path(__file__).resolve().parent
+    yield here / 'webview2_sdk'
+    # PyInstaller one-folder layout: bundled data lands next to the exe
+    # (sys._MEIPASS points at the temporary _MEIxxx dir).
+    meipass = getattr(sys, '_MEIPASS', None)
+    if meipass:
+        yield Path(meipass) / 'webview2_sdk'
+    yield here
+
+
+def _find_sdk_dir():
+    env = os.environ.get(_SDK_ENV_VAR)
+    if env and (Path(env) / 'Microsoft.Web.WebView2.Core.dll').is_file():
+        return Path(env)
+    for candidate in _sdk_candidates():
+        try:
+            if (candidate / 'Microsoft.Web.WebView2.Core.dll').is_file():
+                return candidate
+        except OSError:
+            continue
+    return None
+
+
+# ── Win32 helpers ────────────────────────────────────────────────────
+_SW_HIDE = 0
+_SW_SHOWNORMAL = 1
+
+
+class WebView2Browser:
+    """One embedded WebView2 instance parented to the Kivy (SDL) window.
+
+    Lifecycle::
+
+        show(url) -> is_showing() (True once painted) -> resize(w,h) -> hide()
+        -> shutdown()
+
+    ``hide()`` only hides the controller (it stays alive), so switching back to
+    a weblink later is instant. ``shutdown()`` disposes it for good.
+    """
+
+    #: Set True by the integration layer when the SDK + runtime are usable.
+    _import_error = None
+
+    def __init__(self, hwnd_provider=None, user_data_dir=None):
+        self._hwnd_provider = hwnd_provider
+        self._user_data_dir = user_data_dir or os.path.join(
+            os.environ.get('KIWY_DATA_DIR', os.getcwd()), '.webview2-profile'
+        )
+        self._env = None
+        self._controller = None
+        self._webview = None
+        self._hwnd = None
+        self._showing = False
+        self._stage = 'idle'          # idle | env | controller | ready
+        self._pending_url = None
+        self._failed_reason = ''
+        self._poll_event = None
+        self._lock = threading.RLock()
+        self._task = None
+        self._task_kind = None
+        self._size = (0, 0)
+        # Navigation outcome. `_showing` only means "the controller was told to
+        # be visible", which happens the instant Navigate() is called — it says
+        # nothing about whether the page actually loaded. On a closed network
+        # that distinction is the whole point: an unreachable host paints a
+        # Chromium error page, so without this the player would show a blank
+        # error for the full slot instead of skipping the item.
+        self._navigation_ok = None       # None = pending/unknown
+        self._navigation_status = ''
+        self._navigation_handlers = []   # keep refs: .NET must not GC these
+
+    # ── Availability ─────────────────────────────────────────────────
+    @staticmethod
+    def is_available():
+        """True when pythonnet + the SDK DLLs + a runtime are all present."""
+        if sys.platform != 'win32':
+            return False
+        sdk = _find_sdk_dir()
+        if sdk is None:
+            return False
+        try:
+            import clr  # noqa: F401  (pythonnet)
+        except Exception as exc:
+            WebView2Browser._import_error = f'pythonnet unavailable: {exc}'
+            return False
+        try:
+            cls = _load_webview2_types(sdk)
+            version = cls['env'].GetAvailableBrowserVersionString()
+            return bool(version)
+        except Exception as exc:
+            WebView2Browser._import_error = f'WebView2 unavailable: {exc}'
+            return False
+
+    # ── Public API (Kivy main thread) ────────────────────────────────
+    def show(self, url):
+        """Begin displaying ``url``. Returns True once the request is accepted.
+
+        Rendering is asynchronous: the caller should poll :meth:`is_showing`
+        (the session's ``wait_visible`` does this on the watcher thread).
+        """
+        with self._lock:
+            self._failed_reason = ''
+            self._pending_url = url
+
+            if self._stage == 'ready' and self._controller is not None:
+                return self._navigate(url)
+
+            if self._stage in ('env', 'controller'):
+                return True  # already starting up; URL is queued
+
+            # Start-up order: environment → controller → navigate.
+            self._stage = 'env'
+            if not self._start_environment():
+                self._stage = 'idle'
+                return False
+            if self._stage != 'env':
+                # The environment resolved synchronously (fast path).
+                return self._after_environment()
+            return True
+
+    def hide(self):
+        """Hide the page without destroying the controller (fast re-show)."""
+        with self._lock:
+            self._showing = False
+            self._pending_url = None
+            controller = self._controller
+        if controller is not None:
+            try:
+                controller.IsVisible = False
+            except Exception:
+                pass
+
+    def is_showing(self):
+        """True while the page is actually on screen."""
+        with self._lock:
+            if self._failed_reason:
+                return False
+            if self._controller is None:
+                return False
+            return self._showing
+
+    def is_starting(self):
+        """True while the environment/controller is still being created.
+
+        WebView2 start-up is asynchronous. A controller that does not exist yet
+        is NOT the same as a browser that has gone away, and conflating the two
+        made the *first* weblink after a cold start be skipped instantly (the
+        watcher saw "not alive" and advanced). Callers should treat
+        ``is_starting()`` as "still alive, not yet painted".
+        """
+        with self._lock:
+            if self._failed_reason:
+                return False
+            return self._stage in ('env', 'controller')
+
+    def is_alive(self):
+        """True when the browser is starting up or showing. False only on failure."""
+        return self.is_showing() or self.is_starting()
+
+    @property
+    def failed_reason(self):
+        return self._failed_reason
+
+    def resize(self, width, height):
+        """Fit the page to ``width`` x ``height`` physical pixels."""
+        width, height = int(width), int(height)
+        if width <= 0 or height <= 0:
+            return
+        with self._lock:
+            self._size = (width, height)
+            controller = self._controller
+        if controller is None:
+            return
+        try:
+            from System.Drawing import Rectangle
+
+            controller.Bounds = Rectangle(0, 0, width, height)
+        except Exception as exc:
+            _log(f'WebView2 resize failed (non-fatal): {exc}')
+
+    def shutdown(self):
+        """Dispose the controller and environment. Never raises."""
+        with self._lock:
+            self._showing = False
+            self._stop_poll_locked()
+            controller, self._controller = self._controller, None
+            webview, self._webview = self._webview, None
+            env, self._env = self._env, None
+            self._stage = 'idle'
+        for obj, label in ((webview, 'webview'), (controller, 'controller')):
+            if obj is None:
+                continue
+            try:
+                dispose = getattr(obj, 'Dispose', None)
+                if dispose is not None:
+                    dispose()
+            except Exception as exc:
+                _log(f'WebView2 {label} dispose failed (non-fatal): {exc}')
+        if ctypes is not None:
+            try:
+                ctypes.windll.ole32.CoUninitialize()
+            except Exception:
+                pass
+        del env
+
+    # ── Start-up ─────────────────────────────────────────────────────
+    def _start_environment(self):
+        sdk = _find_sdk_dir()
+        if sdk is None:
+            self._failed_reason = 'WebView2 SDK not found'
+            _log('WebView2: SDK DLLs not found (expected Microsoft.Web.WebView2.Core.dll)')
+            return False
+        try:
+            types = _load_webview2_types(sdk)
+        except Exception as exc:
+            self._failed_reason = f'WebView2 SDK load failed: {exc}'
+            _log(f'WebView2: SDK load failed: {exc}')
+            return False
+
+        # The controller must live on a thread with a message pump; Kivy's SDL
+        # thread qualifies, and COM must be initialised on it first.
+        try:
+            ctypes.windll.ole32.CoInitializeEx(None, 0x2)  # STA
+        except Exception:
+            pass
+
+        try:
+            os.makedirs(self._user_data_dir, exist_ok=True)
+        except Exception as exc:
+            _log(f'WebView2: could not create profile dir ({exc}); using temp')
+            import tempfile
+
+            self._user_data_dir = tempfile.mkdtemp(prefix='kiwy-wv2-')
+
+        _log(f'WebView2: creating environment (profile={self._user_data_dir})')
+        try:
+            options = _build_environment_options()
+            task = _create_environment_async(types, self._user_data_dir, options)
+        except Exception as exc:
+            self._failed_reason = f'CreateAsync failed: {exc}'
+            _log(f'WebView2: environment creation failed: {exc}')
+            return False
+
+        self._task = task
+        self._task_kind = 'env'
+        self._start_poll()
+        return True
+
+    def _start_controller(self):
+        hwnd = 0
+        if self._hwnd_provider is not None:
+            try:
+                hwnd = self._hwnd_provider() or 0
+            except Exception as exc:
+                _log(f'WebView2: hwnd provider failed: {exc}')
+        if not hwnd:
+            self._failed_reason = 'Kivy window handle not found'
+            _log('WebView2: could not locate the Kivy SDL window handle')
+            return False
+        self._hwnd = int(hwnd)
+
+        _log(f'WebView2: creating controller inside hwnd=0x{self._hwnd:x}')
+        try:
+            # The parent window must be a .NET IntPtr; a plain Python int does
+            # not match the overload and pythonnet raises "No method matches
+            # given arguments".
+            from System import IntPtr
+
+            parent = IntPtr(self._hwnd)
+            # HWND hosting: WebView2 creates its own child window in `parent`.
+            task = self._env.CreateCoreWebView2ControllerAsync(parent)
+        except Exception as exc:
+            self._failed_reason = f'controller creation failed: {exc}'
+            _log(f'WebView2: controller creation failed: {exc}')
+            return False
+
+        self._task = task
+        self._task_kind = 'controller'
+        self._stage = 'controller'
+        self._start_poll()
+        return True
+
+    def _after_environment(self):
+        """Called once the environment resolved."""
+        if self._env is None:
+            return False
+        started = self._start_controller()
+        if not started and self._stage == 'controller':
+            return True  # still coming up asynchronously
+        return started
+
+    # ── Async task polling (Kivy Clock) ──────────────────────────────
+    def _start_poll(self):
+        try:
+            from kivy.clock import Clock
+
+            if self._poll_event is None:
+                self._poll_event = Clock.schedule_interval(self._tick, 0.05)
+        except Exception:
+            # No Kivy (or called off-thread): poll from a plain timer instead.
+            if self._poll_event is None:
+                self._poll_event = _ThreadTimer(0.05, self._tick, None)
+
+    def _stop_poll_locked(self):
+        event, self._poll_event = self._poll_event, None
+        if event is None:
+            return
+        try:
+            cancel = getattr(event, 'cancel', None)
+            if cancel is not None:
+                cancel()
+            else:
+                event.stop()
+        except Exception:
+            pass
+
+    def _tick(self, _dt):
+        """Consume the in-flight Task once it completes."""
+        with self._lock:
+            task, kind = self._task, self._task_kind
+            if task is None:
+                self._stop_poll_locked()
+                return False
+            try:
+                done = bool(task.IsCompleted)
+            except Exception as exc:
+                self._failed_reason = f'task poll failed: {exc}'
+                self._task = None
+                self._stop_poll_locked()
+                return False
+            if not done:
+                return True
+            self._task, self._task_kind = None, None
+            self._stop_poll_locked()
+
+        try:
+            if task.IsFaulted:
+                exc = task.Exception
+                detail = ''
+                try:
+                    detail = exc.GetBaseException().Message
+                except Exception:
+                    detail = str(exc)
+                self._failed_reason = f'{kind} failed: {detail}'
+                _log(f'WebView2: {kind} task faulted: {detail}')
+                return False
+            result = task.Result
+        except Exception as exc:
+            self._failed_reason = f'{kind} task error: {exc}'
+            _log(f'WebView2: {kind} task error: {exc}')
+            return False
+
+        if kind == 'env':
+            self._env = result
+            _log('WebView2: environment ready')
+            if not self._start_controller():
+                self._stage = 'idle'
+            return False
+
+        if kind == 'controller':
+            self._controller = result
+            self._on_controller_ready()
+            return False
+
+        return False
+
+    def _on_controller_ready(self):
+        """Wire up the page: bounds, settings, first navigation."""
+        controller = self._controller
+        try:
+            controller.IsVisible = False       # stay hidden until navigated
+        except Exception:
+            pass
+
+        webview = None
+        try:
+            webview = controller.CoreWebView2
+        except Exception as exc:
+            _log(f'WebView2: CoreWebView2 unavailable: {exc}')
+        if webview is None:
+            self._failed_reason = 'CoreWebView2 was not created'
+            return
+        self._webview = webview
+
+        # Chrome-less, kiosk-like surface: no context menu, no devtools,
+        # no accelerators that could let an operator escape the signage.
+        try:
+            settings = webview.Settings
+            settings.AreDefaultContextMenusEnabled = False
+            settings.AreDevToolsEnabled = False
+            settings.IsStatusBarEnabled = False
+            settings.AreBrowserAcceleratorKeysEnabled = False
+            settings.IsZoomControlEnabled = False
+            settings.AreDefaultScriptDialogsEnabled = False
+        except Exception as exc:
+            _log(f'WebView2: settings tweak failed (non-fatal): {exc}')
+
+        self._hook_navigation_events(webview)
+
+        width, height = self._size
+        if width > 0 and height > 0:
+            self.resize(width, height)
+
+        self._stage = 'ready'
+        _log('WebView2: controller ready')
+
+        with self._lock:
+            url, self._pending_url = self._pending_url, None
+        if url:
+            self._navigate(url)
+
+    def _hook_navigation_events(self, webview):
+        """Track whether the page actually loaded.
+
+        ``is_showing()`` alone is misleading: it becomes True the moment
+        ``Navigate()`` is called, before anything has been fetched. On a closed
+        network the weblink host is often unreachable, and Chromium then paints
+        an error page — which the player must treat as a failure so the item is
+        skipped rather than shown as a broken screen for its whole slot.
+
+        Handlers are stored on the instance: if the delegate were only a local,
+        the .NET GC would collect it and the event would silently stop firing.
+        """
+        try:
+            handler = _NavigationCompletedHandler(self)
+            webview.NavigationCompleted += handler
+            self._navigation_handlers.append(handler)
+            _log('WebView2: navigation tracking enabled')
+        except Exception as exc:
+            # Not fatal: without it we simply cannot distinguish a loaded page
+            # from an error page, and fall back to "visible means OK".
+            _log(f'WebView2: could not hook NavigationCompleted ({exc})')
+
+    def navigation_succeeded(self):
+        """True / False once navigation finished, None while still pending."""
+        with self._lock:
+            return self._navigation_ok
+
+    def navigation_status(self):
+        with self._lock:
+            return self._navigation_status
+
+    def _navigate(self, url):
+        webview = self._webview
+        if webview is None:
+            return False
+        with self._lock:
+            self._navigation_ok = None
+            self._navigation_status = ''
+        try:
+            webview.Navigate(url)
+        except Exception as exc:
+            self._failed_reason = f'navigate failed: {exc}'
+            _log(f'WebView2: navigate failed: {exc}')
+            return False
+        width, height = self._size
+        if width > 0 and height > 0:
+            self.resize(width, height)
+        try:
+            self._controller.IsVisible = True
+        except Exception as exc:
+            _log(f'WebView2: could not show controller: {exc}')
+            return False
+        with self._lock:
+            self._showing = True
+        _log(f'WebView2: navigated to {url[:80]}')
+        return True
+
+
+# ── Module helpers ───────────────────────────────────────────────────
+_TYPES_CACHE = {}
+
+
+def _load_webview2_types(sdk_dir):
+    """Import the managed SDK and return the types we need (cached)."""
+    key = str(sdk_dir)
+    cached = _TYPES_CACHE.get(key)
+    if cached:
+        return cached
+
+    if hasattr(os, 'add_dll_directory'):
+        try:
+            os.add_dll_directory(str(sdk_dir))  # let the loader find WebView2Loader.dll
+        except Exception:
+            pass
+    if key not in sys.path:
+        sys.path.insert(0, key)
+
+    import clr
+
+    # Framework assemblies we rely on (Rectangle for Bounds).
+    try:
+        clr.AddReference('System.Drawing')
+    except Exception:
+        pass
+    clr.AddReference(str(sdk_dir / 'Microsoft.Web.WebView2.Core.dll'))
+
+    from Microsoft.Web.WebView2.Core import CoreWebView2Environment
+
+    types = {'env': CoreWebView2Environment}
+    _TYPES_CACHE[key] = types
+    return types
+
+
+def _create_environment_async(types, user_data_dir, options=None):
+    """Call CreateAsync with the options object.
+
+    The SDK exposes exactly one overload:
+    ``CreateAsync(string browserExecutableFolder, string userDataFolder,
+    CoreWebView2EnvironmentOptions options)``.
+    """
+    env_type = types['env']
+    last = None
+    # Preferred: explicit options (used to pass offline browser arguments).
+    if options is not None:
+        try:
+            return env_type.CreateAsync(None, user_data_dir, options)
+        except Exception as exc:
+            last = exc
+    attempts = (
+        (None, user_data_dir, None),
+        (None, user_data_dir),
+    )
+    for args in attempts:
+        try:
+            return env_type.CreateAsync(*args)
+        except Exception as exc:
+            last = exc
+    raise last if last is not None else RuntimeError('CreateAsync failed')
+
+
+def _offline_browser_arguments():
+    """Chromium flags that stop internet chatter on a closed network.
+
+    A signage player normally lives on an isolated LAN. By default Chromium
+    still tries to reach the internet for component updates, field trials,
+    safe-browsing lists, translate, and Google services. On a closed network
+    every one of those attempts has to time out, which costs start-up latency
+    (and, if DNS resolves but routes black-hole, can stall for many seconds).
+
+    These flags disable that background traffic. They do NOT affect loading
+    actual pages — a weblink pointing at the local server still works, and one
+    pointing at the public internet simply fails fast with a normal
+    ERR_INTERNET_DISCONNECTED instead of hanging.
+    """
+    return ' '.join([
+        '--disable-background-networking',
+        '--disable-component-update',
+        '--disable-domain-reliability',
+        '--disable-features=Translate,OptimizationHints,MediaRouter,'
+        'CalculateNativeWinOcclusion',
+        '--disable-sync',
+        '--no-first-run',
+        '--no-default-browser-check',
+        '--no-pings',
+        '--disable-breakpad',
+        '--metrics-recording-only',
+        '--disable-client-side-phishing-detection',
+    ])
+
+
+def _build_environment_options():
+    """Create a CoreWebView2EnvironmentOptions with offline flags applied."""
+    try:
+        from Microsoft.Web.WebView2.Core import CoreWebView2EnvironmentOptions
+
+        options = CoreWebView2EnvironmentOptions()
+        options.AdditionalBrowserArguments = _offline_browser_arguments()
+        # Don't phone home with crash reports.
+        try:
+            options.IsCustomCrashReportingEnabled = False
+        except Exception:
+            pass
+        _log('WebView2: offline browser arguments applied')
+        return options
+    except Exception as exc:
+        _log(f'WebView2: could not build environment options ({exc}); '
+             'continuing with defaults')
+        return None
+
+
+class _ThreadTimer:
+    """Minimal fallback timer used only when Kivy's Clock is unavailable."""
+
+    def __init__(self, interval, func, _unused):
+        self._interval = float(interval)
+        self._func = func
+        self._stop = threading.Event()
+        self._thread = threading.Thread(target=self._run, daemon=True)
+        self._thread.start()
+
+    def _run(self):
+        while not self._stop.wait(self._interval):
+            try:
+                if self._func(None) is False:
+                    return
+            except Exception:
+                return
+
+    def cancel(self):
+        self._stop.set()
+
+
+class _NavigationCompletedHandler:
+    """Adapter for WebView2's ``NavigationCompleted`` event.
+
+    The event is ``System.EventHandler<CoreWebView2NavigationCompletedEventArgs>``
+    — there is no ``CoreWebView2NavigationCompletedEventHandler`` type to import
+    (attempting to import one fails). pythonnet converts a plain Python callable
+    to the generic delegate automatically, so that is what we pass.
+
+    The callable is kept on the browser instance: a delegate referenced only by
+    a local would be collected by the .NET GC, after which the event silently
+    stops firing.
+    """
+
+    def __init__(self, browser):
+        self._browser = browser
+
+    def __call__(self, sender, args):
+        """Fires on the WebView2 thread that owns the message loop."""
+        try:
+            success = bool(args.IsSuccess)
+            status = _describe_navigation_error(args, success) if not success else ''
+            with self._browser._lock:
+                self._browser._navigation_ok = success
+                self._browser._navigation_status = status
+            if success:
+                _log('WebView2: page loaded')
+            else:
+                _log(f'WebView2: page failed to load ({status or "unknown"})')
+        except Exception as exc:
+            _log(f'WebView2: navigation handler error ({exc})')
+
+
+def _log(message):
+    try:
+        from kivy.logger import Logger
+
+        Logger.info(f'[WebView2] {message}')
+    except Exception:
+        print(f'[WebView2] {message}')
+
+
+def _describe_navigation_error(args, success):
+    """Human-readable reason for a failed navigation.
+
+    ``WebErrorStatus`` is an enum whose numeric value is not useful on its own;
+    when it reports ``Unknown`` (common for connection-level failures) the HTTP
+    status is more informative, so prefer whichever actually says something.
+    """
+    parts = []
+    try:
+        error_status = str(args.WebErrorStatus)
+        if error_status and error_status.lower() != 'unknown':
+            parts.append(error_status)
+    except Exception:
+        pass
+    try:
+        http_status = int(args.HttpStatusCode)
+        if http_status > 0:
+            parts.append(f'HTTP {http_status}')
+    except Exception:
+        pass
+    if parts:
+        return ', '.join(parts)
+    return 'connection failed (host unreachable or DNS failure)'

windows/webview2_runtime.py

@@ -0,0 +1,446 @@
+"""webview2_runtime.py — make sure the WebView2 Runtime is present.
+
+Why this exists
+---------------
+WebView2 splits into two parts:
+
+* the **SDK** (the ``Microsoft.Web.WebView2.Core.dll`` + ``WebView2Loader.dll``
+  we bundle in ``windows/webview2_sdk``), which is just the API surface, and
+* the **Runtime** (``msedgewebview2.exe`` etc.), the actual Chromium engine.
+
+The SDK is useless without the Runtime. The Runtime ships with Windows 11 and
+is present on the vast majority of Windows 10 machines, but Microsoft still
+recommends checking for it and installing it when missing — so that is what
+this module does.
+
+Deployment notes (per Microsoft's distribution guidance):
+
+* If the Runtime is missing we run an installer with ``/silent /install``.
+* Run it **without elevation** → per-user install, which never shows a UAC
+  prompt. That matters for an unattended signage player: a UAC dialog on a
+  kiosk screen is a failure, not a prompt.
+* Two installers are supported, in order of preference:
+  1. ``MicrosoftEdgeWebView2RuntimeInstallerX64.exe`` — the ~203 MB offline
+     *standalone* installer. Works with no internet (drop it in
+     ``windows/webview2_runtime/`` to have it bundled).
+  2. ``MicrosoftEdgeWebview2Setup.exe`` — the ~1.7 MB *bootstrapper*, which
+     downloads the Runtime from Microsoft. Bundled by default.
+
+Nothing here ever raises: a failure just means web links fall back to the
+Chrome/Edge subprocess engine, which is far better than the player crashing.
+"""
+
+from __future__ import annotations
+
+import os
+import subprocess
+import sys
+import threading
+import time
+from pathlib import Path
+
+# Per Microsoft, the Runtime's presence/version lives in this registry value.
+# (Edge Update client GUID for the Evergreen WebView2 Runtime.)
+_CLIENT_GUID = '{F3017226-FE2A-4295-8BDF-00C3A9A7E4C5}'
+
+_STANDALONE_NAME = 'MicrosoftEdgeWebView2RuntimeInstallerX64.exe'
+_BOOTSTRAPPER_NAME = 'MicrosoftEdgeWebview2Setup.exe'
+
+#: Don't re-attempt a failing install on every single start-up.
+_RETRY_COOLDOWN_SECONDS = 6 * 60 * 60
+
+_install_lock = threading.Lock()
+_install_state = {
+    'attempted': False,
+    'installing': False,
+    'installed': None,      # bool once known
+    'version': '',
+    'error': '',
+}
+
+#: Set once a background install has finished, so a weblink can wait for it.
+_install_done = threading.Event()
+
+
+# ── Detection ────────────────────────────────────────────────────────
+def _parse_version(text):
+    """Return a comparable tuple from a version string like '152.0.4191.66'."""
+    parts = []
+    for chunk in str(text or '').split('.'):
+        digits = ''.join(c for c in chunk if c.isdigit())
+        parts.append(int(digits) if digits else 0)
+    while len(parts) < 4:
+        parts.append(0)
+    return tuple(parts[:4])
+
+
+def _read_registry_version():
+    """Read the installed Runtime version from the registry, or ''.
+
+    Checks both install scopes: HKLM (per-machine) and HKCU (per-user). On
+    64-bit Windows the per-machine value lives under WOW6432Node because the
+    Edge Updater is a 32-bit component.
+    """
+    if sys.platform != 'win32':
+        return ''
+    try:
+        import winreg
+    except Exception:
+        return ''
+
+    candidates = [
+        # (hive, subkey, access flag)
+        (winreg.HKEY_LOCAL_MACHINE,
+         rf'SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\Clients\{_CLIENT_GUID}', 0),
+        (winreg.HKEY_LOCAL_MACHINE,
+         rf'SOFTWARE\Microsoft\EdgeUpdate\Clients\{_CLIENT_GUID}',
+         getattr(winreg, 'KEY_WOW64_32KEY', 0)),
+        (winreg.HKEY_CURRENT_USER,
+         rf'SOFTWARE\Microsoft\EdgeUpdate\Clients\{_CLIENT_GUID}', 0),
+    ]
+    for hive, subkey, access in candidates:
+        try:
+            with winreg.OpenKey(hive, subkey, 0,
+                                winreg.KEY_READ | access) as key:
+                value, _ = winreg.QueryValueEx(key, 'pv')
+            value = str(value or '').strip()
+            if value and _parse_version(value) > (0, 0, 0, 0):
+                return value
+        except Exception:
+            continue
+    return ''
+
+
+def get_runtime_version():
+    """Version of the installed Evergreen Runtime, or '' when absent."""
+    version = _read_registry_version()
+    if version:
+        return version
+    # Fallback: ask the SDK itself (also covers preview channels).
+    try:
+        from webview2_browser import _find_sdk_dir, _load_webview2_types
+
+        sdk = _find_sdk_dir()
+        if sdk is not None:
+            types = _load_webview2_types(sdk)
+            reported = types['env'].GetAvailableBrowserVersionString()
+            return str(reported).strip() if reported else ''
+    except Exception:
+        pass
+    return ''
+
+
+def is_runtime_installed():
+    """True when a usable WebView2 Runtime is present."""
+    return bool(get_runtime_version())
+
+
+# ── Installer discovery ──────────────────────────────────────────────
+def _search_dirs():
+    """Folders that may hold an installer, best (standalone) first."""
+    here = Path(__file__).resolve().parent
+    dirs = [here / 'webview2_runtime', here]
+    meipass = getattr(sys, '_MEIPASS', None)
+    if meipass:
+        dirs.append(Path(meipass) / 'webview2_runtime')
+    # Next to the .exe, so an operator can drop the offline installer in
+    # without rebuilding.
+    data_dir = os.environ.get('KIWY_DATA_DIR')
+    if data_dir:
+        dirs.append(Path(data_dir) / 'webview2_runtime')
+        dirs.append(Path(data_dir))
+    env = os.environ.get('KIWY_WEBVIEW2_INSTALLER')
+    if env:
+        dirs.insert(0, Path(env).parent)
+    return dirs
+
+
+def find_installer():
+    """Locate a usable installer. Returns ``(path, kind)`` or ``(None, None)``.
+
+    The standalone (offline) installer is preferred: it does not depend on the
+    target machine having internet access, which is the normal case for a
+    signage player on an isolated LAN.
+    """
+    env = os.environ.get('KIWY_WEBVIEW2_INSTALLER')
+    if env and Path(env).is_file():
+        return Path(env), 'explicit'
+
+    found = {'standalone': None, 'bootstrapper': None}
+    for directory in _search_dirs():
+        try:
+            if found['standalone'] is None:
+                candidate = directory / _STANDALONE_NAME
+                if candidate.is_file():
+                    found['standalone'] = candidate
+            if found['bootstrapper'] is None:
+                candidate = directory / _BOOTSTRAPPER_NAME
+                if candidate.is_file():
+                    found['bootstrapper'] = candidate
+        except OSError:
+            continue
+
+    if found['standalone'] is not None:
+        return found['standalone'], 'standalone'
+    if found['bootstrapper'] is not None:
+        return found['bootstrapper'], 'bootstrapper'
+    return None, None
+
+
+def _has_internet(timeout=4.0):
+    """Quick reachability probe. A closed network returns False fast."""
+    try:
+        import socket
+
+        with socket.create_connection(('www.msftconnecttest.com', 80),
+                                      timeout=timeout):
+            return True
+    except Exception:
+        return False
+
+
+# ── Cooldown bookkeeping ─────────────────────────────────────────────
+def _marker_path():
+    data_dir = os.environ.get('KIWY_DATA_DIR') or os.getcwd()
+    return Path(data_dir) / 'logs' / '.webview2_install_attempt'
+
+
+def _recent_failed_attempt():
+    try:
+        marker = _marker_path()
+        if not marker.is_file():
+            return False
+        age = time.time() - marker.stat().st_mtime
+        return age < _RETRY_COOLDOWN_SECONDS
+    except Exception:
+        return False
+
+
+def _record_attempt():
+    try:
+        marker = _marker_path()
+        marker.parent.mkdir(parents=True, exist_ok=True)
+        marker.write_text(str(int(time.time())))
+    except Exception:
+        pass
+
+
+def _clear_attempt_marker():
+    try:
+        marker = _marker_path()
+        if marker.is_file():
+            marker.unlink()
+    except Exception:
+        pass
+
+
+# ── Install ──────────────────────────────────────────────────────────
+def _create_no_window():
+    """Keep the installer from flashing a console window on the signage."""
+    try:
+        return subprocess.CREATE_NO_WINDOW
+    except AttributeError:
+        return 0x08000000
+
+
+def _run_installer(path, timeout):
+    """Run the installer silently. Returns (ok, detail)."""
+    # `/silent /install` is the documented silent invocation. Deliberately NOT
+    # elevated: a non-elevated run performs a per-user install, which never
+    # raises a UAC prompt on the kiosk display.
+    args = [str(path), '/silent', '/install']
+    _log(f'WebView2: running installer {Path(path).name} /silent /install '
+         f'(per-user, no elevation)')
+    try:
+        result = subprocess.run(
+            args,
+            timeout=timeout,
+            creationflags=_create_no_window(),
+            stdout=subprocess.PIPE,
+            stderr=subprocess.STDOUT,
+        )
+    except subprocess.TimeoutExpired:
+        return False, f'installer timed out after {int(timeout)}s'
+    except Exception as exc:
+        return False, f'could not run installer: {exc}'
+
+    code = result.returncode
+    detail = (result.stdout or b'').decode('utf-8', 'replace').strip()
+    # Edge Update installers commonly report 0 (success) or 3010 (reboot
+    # required). They also return non-zero HRESULTs when the Runtime is already
+    # installed at an equal/newer version — which is why the caller decides
+    # success by re-reading the installed version rather than trusting this
+    # code. We only use it to explain a failure.
+    if code in (0, 3010):
+        return True, f'installer exit code {code}'
+    return False, f'installer exit code {code}{": " + detail if detail else ""}'
+
+
+def ensure_runtime(timeout=600):
+    """Install the Runtime when missing. Blocking; never raises.
+
+    Returns a dict describing the outcome (``installed``, ``version``,
+    ``error``, ``action``).
+    """
+    with _install_lock:
+        if is_runtime_installed():
+            version = get_runtime_version()
+            _install_state.update(
+                attempted=True, installing=False, installed=True,
+                version=version, error='',
+            )
+            return dict(_install_state, action='already-present')
+
+        if _recent_failed_attempt():
+            _install_state.update(
+                attempted=True, installing=False, installed=False, error='',
+            )
+            return dict(_install_state, action='skipped-recent-failure')
+
+        path, kind = find_installer()
+        if path is None:
+            message = ('no WebView2 installer found (expected '
+                       f'{_STANDALONE_NAME} or {_BOOTSTRAPPER_NAME} in '
+                       'windows/webview2_runtime/)')
+            _log(f'WebView2: {message}')
+            _install_state.update(
+                attempted=True, installing=False, installed=False,
+                error=message,
+            )
+            return dict(_install_state, action='installer-missing')
+
+        if kind == 'bootstrapper':
+            # The bootstrapper downloads the Runtime from Microsoft. On a closed
+            # network that can never succeed, so fail fast with an actionable
+            # message instead of hanging for the whole timeout.
+            if not _has_internet():
+                message = ('the WebView2 Runtime is missing and this machine has '
+                           f'no internet access; only the ONLINE bootstrapper '
+                           f'({_BOOTSTRAPPER_NAME}) is available. Bundle the '
+                           f'offline installer ({_STANDALONE_NAME}, run '
+                           'webview2_runtime/download_runtime_installers.ps1 '
+                           '-Offline) to run on a closed network.')
+                _log(f'WebView2: {message}')
+                _install_state.update(
+                    attempted=True, installing=False, installed=False,
+                    error=message,
+                )
+                _install_done.set()
+                return dict(_install_state, action='offline-no-installer')
+            _log('WebView2: Runtime missing — using the ONLINE bootstrapper '
+                 '(downloads ~150 MB). Add the offline standalone installer to '
+                 'avoid needing internet.')
+
+        _install_state.update(attempted=True, installing=True, error='')
+        _record_attempt()
+        ok, detail = _run_installer(path, timeout)
+        if not ok and 'already installed' not in detail.lower():
+            _log(f'WebView2: installer reported {detail}')
+
+        # Decide success by RE-READING the installed version, not by the exit
+        # code: a non-zero HRESULT can simply mean "nothing to do".
+        version = ''
+        deadline = time.monotonic() + 30
+        while time.monotonic() < deadline:
+            version = get_runtime_version()
+            if version:
+                break
+            time.sleep(1.0)
+
+        if version:
+            _clear_attempt_marker()
+            _log(f'WebView2: Runtime available (v{version}) [{detail}]')
+            _install_state.update(
+                installing=False, installed=True, version=version,
+                error='', action=f'installed-{kind}',
+            )
+        else:
+            message = detail or 'Runtime still not detected after install'
+            _log(f'WebView2: install did not take effect ({message})')
+            _install_state.update(
+                installing=False, installed=False, version='', error=message,
+            )
+        _install_done.set()
+        return dict(_install_state, action=f'attempted-{kind}')
+
+
+def ensure_runtime_async(timeout=600):
+    """Kick off :func:`ensure_runtime` on a background thread.
+
+    Called at start-up so a missing Runtime installs while the player is still
+    syncing its playlist, instead of freezing the UI.
+    """
+    if is_runtime_installed():
+        _install_done.set()
+        _install_state.update(installed=True, version=get_runtime_version())
+        return None
+
+    def _worker():
+        try:
+            ensure_runtime(timeout=timeout)
+        except Exception as exc:  # defensive: never kill the player
+            _log(f'WebView2: background install failed: {exc}')
+            _install_state.update(installing=False, installed=False, error=str(exc))
+            _install_done.set()
+
+    thread = threading.Thread(target=_worker, name='webview2-install', daemon=True)
+    thread.start()
+    return thread
+
+
+def wait_for_install(timeout):
+    """Wait (briefly, on the watcher thread) for a pending install.
+
+    Returns True when a Runtime is available afterwards.
+    """
+    if is_runtime_installed():
+        return True
+    if not _install_state.get('installing'):
+        return False
+    _install_done.wait(timeout=max(0.0, float(timeout)))
+    return is_runtime_installed()
+
+
+def get_state():
+    """Snapshot of the installer state, for logging/diagnostics."""
+    state = dict(_install_state)
+    if state.get('installed') is None:
+        state['installed'] = is_runtime_installed()
+        state['version'] = state['version'] or get_runtime_version()
+    return state
+
+
+def describe():
+    """One-line status for the startup log."""
+    version = get_runtime_version()
+    if version:
+        return f'WebView2 Runtime present (v{version})'
+    path, kind = find_installer()
+    if path is None:
+        return 'WebView2 Runtime MISSING and no bundled installer found'
+    if kind == 'standalone':
+        return (f'WebView2 Runtime MISSING (will install OFFLINE via '
+                f'{path.name} — no internet needed)')
+    return (f'WebView2 Runtime MISSING (will install via the ONLINE '
+            f'bootstrapper {path.name}; needs internet)')
+
+
+def is_offline_ready():
+    """True when a Runtime is present, or can be installed without internet.
+
+    This is the property that matters for a closed-network deployment: web
+    links will work on first start with no outbound connectivity.
+    """
+    if is_runtime_installed():
+        return True
+    path, kind = find_installer()
+    return path is not None and kind in ('standalone', 'explicit')
+
+
+def _log(message):
+    try:
+        from kivy.logger import Logger
+
+        Logger.info(f'[WebView2] {message}')
+    except Exception:
+        print(f'[WebView2] {message}')

windows/webview2_runtime/download_runtime_installers.ps1

@@ -0,0 +1,65 @@
+# Downloads the WebView2 Runtime installers into windows\webview2_runtime\.
+#
+# build.spec bundles:
+#   - MicrosoftEdgeWebview2Setup.exe              (~1.7 MB)  always
+#   - MicrosoftEdgeWebView2RuntimeInstallerX64.exe (~203 MB) only if present
+#
+# The bootstrapper is the small online installer (it downloads the Runtime
+# from Microsoft). Run this script with -Offline to also fetch the standalone
+# installer for machines that have no internet access — note that it makes the
+# built .exe about 200 MB larger.
+#
+# Usage:
+#   .\download_runtime_installers.ps1
+#   .\download_runtime_installers.ps1 -Offline
+
+[CmdletBinding()]
+param(
+    [switch]$Offline
+)
+
+$ErrorActionPreference = 'Stop'
+
+$dest = Join-Path $PSScriptRoot 'webview2_runtime'
+if (-not (Test-Path $dest)) {
+    New-Item -ItemType Directory -Force -Path $dest | Out-Null
+}
+
+$bootstrapperUrl = 'https://go.microsoft.com/fwlink/p/?LinkId=2124703'
+$standaloneUrl   = 'https://go.microsoft.com/fwlink/?linkid=2124701'  # x64
+
+function Get-Installer {
+    param([string]$Url, [string]$FileName, [string]$Label)
+
+    $target = Join-Path $dest $FileName
+    Write-Host "[INFO] Downloading $Label ..." -ForegroundColor Cyan
+    Invoke-WebRequest -Uri $Url -OutFile $target -UseBasicParsing -MaximumRedirection 10
+
+    $file = Get-Item -LiteralPath $target
+    $sig = Get-AuthenticodeSignature -LiteralPath $target
+    $sizeMb = [math]::Round($file.Length / 1MB, 1)
+
+    Write-Host ("       {0}  {1} MB" -f $file.Name, $sizeMb)
+    if ($sig.Status -eq 'Valid' -and $sig.SignerCertificate.Subject -like '*Microsoft*') {
+        Write-Host "       signature: Valid (Microsoft)" -ForegroundColor Green
+    }
+    else {
+        Write-Warning "       signature: $($sig.Status) — verify this download!"
+    }
+}
+
+Get-Installer -Url $bootstrapperUrl -FileName 'MicrosoftEdgeWebview2Setup.exe' -Label 'Runtime bootstrapper (online)'
+
+if ($Offline) {
+    Get-Installer -Url $standaloneUrl -FileName 'MicrosoftEdgeWebView2RuntimeInstallerX64.exe' -Label 'Runtime standalone installer (offline, x64)'
+    Write-Host ''
+    Write-Host '[WARN] The standalone installer adds ~203 MB to the built .exe.' -ForegroundColor Yellow
+}
+else {
+    Write-Host ''
+    Write-Host '[INFO] Offline installer skipped. Re-run with -Offline to include it.' -ForegroundColor DarkGray
+}
+
+Write-Host ''
+Write-Host "[OK] Installers are in $dest" -ForegroundColor Green
+Write-Host '     Next: rebuild with  venv\Scripts\python.exe -m PyInstaller build.spec --clean --noconfirm'

windows/win_card_reader.py

@@ -0,0 +1,720 @@
+"""
+Windows Card Reader (Raw Input API + LL-hook fallback)
+=======================================================
+Drop-in replacement for the Linux `CardReader` class in `src/main.py`.
+
+The Linux implementation reads keystrokes from `/dev/input/event*` via
+`evdev`. On Windows there is no `/dev/input`; instead HID devices (such as
+USB card readers that emulate a keyboard) are accessed through the Win32
+**Raw Input API** (`WM_INPUT`).
+
+Design
+------
+* A dedicated hidden message-only window + message pump runs on a background
+  thread. It registers for Raw Input of all *keyboard* HID devices with
+  `RIDEV_INPUTSINK`, so it receives `WM_INPUT` even though it never has focus.
+* Device selection mirrors the Linux priority logic:
+    1. A device whose name contains "card" / "reader" / "rfid".
+    2. A USB HID keyboard that is *not* the PS/2 system keyboard.
+    3. Any keyboard device (excluding obvious touchscreens/mice).
+  A config override `card_reader_device` (substring of the device name, e.g.
+  `VID_08FF`) takes precedence.
+* While reading, only key events from the *selected* device are accepted, so a
+  physical keyboard used for maintenance cannot pollute the card data.
+* Card data ends on Enter (`VK_RETURN`), mirroring the Linux behaviour.
+* If Raw Input registration fails (or config `card_reader_mode = "hook"`), it
+  falls back to a low-level keyboard hook (`WH_KEYBOARD_LL`).
+
+Config keys (in `config/app_config.json`):
+    "card_reader_device": "VID_08FF"   # substring of device name (optional)
+    "card_reader_mode":   "auto"        # "auto" | "raw" | "hook"
+    "card_reader_timeout": 5            # seconds (optional)
+"""
+
+import ctypes
+import ctypes.wintypes as wintypes
+import os
+import json
+import threading
+import time
+
+# ── Win32 constants ──────────────────────────────────────────────────────────
+WM_INPUT = 0x00FF
+WM_INPUT_DEVICE_CHANGE = 0x00FE
+WM_KEYDOWN = 0x0100
+WM_SYSKEYDOWN = 0x0104
+
+RIM_TYPEMOUSE = 0
+RIM_TYPEKEYBOARD = 1
+RIM_TYPEHID = 2
+
+RID_INPUT = 0x10000003
+RIDI_DEVICENAME = 0x20000007
+
+RIDEV_INPUTSINK = 0x00000100
+RIDEV_DEVNOTIFY = 0x00002000
+
+WH_KEYBOARD_LL = 13
+HC_ACTION = 0
+
+# Virtual keys we never treat as card data
+_VK_SHIFT = 0x10
+_VK_CONTROL = 0x11
+_VK_MENU = 0x12
+_VK_CAPITAL = 0x14
+_VK_ESCAPE = 0x1B
+_VK_RETURN = 0x0D
+_VK_TAB = 0x09
+_VK_LSHIFT = 0xA0
+_VK_RSHIFT = 0xA1
+_VK_LCONTROL = 0xA2
+_VK_RCONTROL = 0xA3
+_VK_LMENU = 0xA4
+_VK_RMENU = 0xA5
+
+# ── ctypes structures ───────────────────────────────────────────────────────
+# ctypes.wintypes does not export LRESULT; it is a signed pointer-sized value.
+# Use ctypes.c_long (standard ctypes workaround; fine for WNDPROC/LL-hook).
+_LRESULT = ctypes.c_long
+
+_WND_PROC = ctypes.WINFUNCTYPE(
+    _LRESULT, wintypes.HWND, wintypes.UINT,
+    wintypes.WPARAM, wintypes.LPARAM,
+)
+_LL_KEYBOARD_PROC = ctypes.WINFUNCTYPE(
+    _LRESULT, ctypes.c_int, wintypes.WPARAM, wintypes.LPARAM,
+)
+
+
+class _WNDCLASSW(ctypes.Structure):
+    _fields_ = [
+        ('style', wintypes.UINT),
+        ('lpfnWndProc', _WND_PROC),
+        ('cbClsExtra', ctypes.c_int),
+        ('cbWndExtra', ctypes.c_int),
+        ('hInstance', wintypes.HINSTANCE),
+        ('hIcon', wintypes.HICON),
+        ('hCursor', ctypes.c_void_p),  # HCURSOR (not exported by wintypes)
+        ('hbrBackground', wintypes.HBRUSH),
+        ('lpszMenuName', wintypes.LPCWSTR),
+        ('lpszClassName', wintypes.LPCWSTR),
+    ]
+
+
+class _MSG(ctypes.Structure):
+    _fields_ = [
+        ('hwnd', wintypes.HWND),
+        ('message', wintypes.UINT),
+        ('wParam', wintypes.WPARAM),
+        ('lParam', wintypes.LPARAM),
+        ('time', wintypes.DWORD),
+        ('pt', wintypes.POINT),
+    ]
+
+
+class _RAWINPUTDEVICE(ctypes.Structure):
+    _fields_ = [
+        ('usUsagePage', wintypes.USHORT),
+        ('usUsage', wintypes.USHORT),
+        ('dwFlags', wintypes.DWORD),
+        ('hwndTarget', wintypes.HWND),
+    ]
+
+
+class _RAWINPUTDEVICELIST(ctypes.Structure):
+    _fields_ = [
+        ('hDevice', wintypes.HANDLE),
+        ('dwType', wintypes.DWORD),
+    ]
+
+
+class _RAWINPUTHEADER(ctypes.Structure):
+    _fields_ = [
+        ('dwType', wintypes.DWORD),
+        ('dwSize', wintypes.DWORD),
+        ('hDevice', wintypes.HANDLE),
+        ('wParam', wintypes.WPARAM),
+    ]
+
+
+class _RAWKEYBOARD(ctypes.Structure):
+    _fields_ = [
+        ('MakeCode', wintypes.USHORT),
+        ('Flags', wintypes.USHORT),
+        ('Reserved', wintypes.USHORT),
+        ('VKey', wintypes.USHORT),
+        ('Message', wintypes.UINT),
+        ('ExtraInformation', wintypes.ULONG),
+    ]
+
+
+class _RAWINPUT_UNION(ctypes.Union):
+    _fields_ = [('keyboard', _RAWKEYBOARD)]
+
+
+class _RAWINPUT(ctypes.Structure):
+    _fields_ = [
+        ('header', _RAWINPUTHEADER),
+        ('u', _RAWINPUT_UNION),
+    ]
+
+
+class _KBDLLHOOKSTRUCT(ctypes.Structure):
+    _fields_ = [
+        ('vkCode', wintypes.DWORD),
+        ('scanCode', wintypes.DWORD),
+        ('flags', wintypes.DWORD),
+        ('time', wintypes.DWORD),
+        ('dwExtraInfo', wintypes.WPARAM),
+    ]
+
+
+# ── Win32 function bindings with explicit signatures ────────────────────────
+_user32 = ctypes.windll.user32
+_kernel32 = ctypes.windll.kernel32
+
+_user32.RegisterClassW.argtypes = [ctypes.POINTER(_WNDCLASSW)]
+_user32.RegisterClassW.restype = wintypes.ATOM
+_user32.CreateWindowExW.argtypes = [
+    wintypes.DWORD, wintypes.LPCWSTR, wintypes.LPCWSTR, wintypes.DWORD,
+    ctypes.c_int, ctypes.c_int, ctypes.c_int, ctypes.c_int,
+    wintypes.HWND, wintypes.HMENU, wintypes.HINSTANCE, wintypes.LPVOID,
+]
+_user32.CreateWindowExW.restype = wintypes.HWND
+_user32.DestroyWindow.argtypes = [wintypes.HWND]
+_user32.UnregisterClassW.argtypes = [wintypes.LPCWSTR, wintypes.HINSTANCE]
+_user32.GetMessageW.argtypes = [
+    ctypes.POINTER(_MSG), wintypes.HWND, wintypes.UINT, wintypes.UINT,
+]
+_user32.GetMessageW.restype = wintypes.BOOL
+_user32.TranslateMessage.argtypes = [ctypes.POINTER(_MSG)]
+_user32.DispatchMessageW.argtypes = [ctypes.POINTER(_MSG)]
+_user32.DefWindowProcW.argtypes = [
+    wintypes.HWND, wintypes.UINT, wintypes.WPARAM, wintypes.LPARAM,
+]
+_user32.DefWindowProcW.restype = _LRESULT
+_user32.PostMessageW.argtypes = [
+    wintypes.HWND, wintypes.UINT, wintypes.WPARAM, wintypes.LPARAM,
+]
+_user32.PostMessageW.restype = wintypes.BOOL
+
+_user32.RegisterRawInputDevices.argtypes = [
+    ctypes.POINTER(_RAWINPUTDEVICE), wintypes.UINT, wintypes.UINT,
+]
+_user32.RegisterRawInputDevices.restype = wintypes.BOOL
+_user32.GetRawInputDeviceList.argtypes = [
+    ctypes.POINTER(_RAWINPUTDEVICELIST), ctypes.POINTER(wintypes.UINT),
+    wintypes.UINT,
+]
+_user32.GetRawInputDeviceList.restype = wintypes.UINT
+_user32.GetRawInputDeviceInfoW.argtypes = [
+    wintypes.HANDLE, wintypes.UINT, wintypes.LPVOID,
+    ctypes.POINTER(wintypes.UINT),
+]
+_user32.GetRawInputDeviceInfoW.restype = wintypes.UINT
+_user32.GetRawInputData.argtypes = [
+    wintypes.HANDLE, wintypes.UINT, wintypes.LPVOID,
+    ctypes.POINTER(wintypes.UINT), wintypes.UINT,
+]
+_user32.GetRawInputData.restype = wintypes.UINT
+_user32.MapVirtualKeyW.argtypes = [wintypes.UINT, wintypes.UINT]
+_user32.MapVirtualKeyW.restype = wintypes.UINT
+
+_user32.SetWindowsHookExW.argtypes = [
+    ctypes.c_int, _LL_KEYBOARD_PROC, wintypes.HINSTANCE, wintypes.DWORD,
+]
+_user32.SetWindowsHookExW.restype = wintypes.HHOOK
+_user32.UnhookWindowsHookEx.argtypes = [wintypes.HHOOK]
+_user32.UnhookWindowsHookEx.restype = wintypes.BOOL
+_user32.CallNextHookEx.argtypes = [
+    wintypes.HHOOK, ctypes.c_int, wintypes.WPARAM, wintypes.LPARAM,
+]
+_user32.CallNextHookEx.restype = _LRESULT
+
+_kernel32.GetModuleHandleW.argtypes = [wintypes.LPCWSTR]
+_kernel32.GetModuleHandleW.restype = wintypes.HINSTANCE
+
+_WND_CLASS_NAME = 'KiwyWinCardReaderWindow'
+
+# The single active reader instance (the Raw Input / LL-hook callbacks are
+# invoked from a background thread; a module-level ref avoids GC of the proc).
+_ACTIVE_READER = None
+
+
+# ── Small helpers ───────────────────────────────────────────────────────────
+def _log(msg):
+    """Log via Kivy Logger when available, else print."""
+    try:
+        from kivy.logger import Logger
+        Logger.info(f"CardReaderWin: {msg}")
+    except Exception:
+        try:
+            print(f"[CardReaderWin] {msg}")
+        except Exception:
+            pass
+
+
+def _get_config():
+    """Read app_config.json (next to exe, or project config in dev mode)."""
+    try:
+        data_dir = os.environ.get('KIWY_DATA_DIR', '')
+        candidates = []
+        if data_dir:
+            candidates.append(os.path.join(data_dir, 'config', 'app_config.json'))
+        # Dev fallback: <project>/config/app_config.json
+        here = os.path.dirname(os.path.abspath(__file__))  # windows/
+        candidates.append(os.path.join(os.path.dirname(here), 'config', 'app_config.json'))
+        for path in candidates:
+            if path and os.path.exists(path):
+                with open(path, 'r', encoding='utf-8') as f:
+                    return json.load(f) or {}
+    except Exception:
+        pass
+    return {}
+
+
+def _vk_to_char(vk):
+    """Convert a virtual-key code to its character, or None if not data."""
+    # Numeric keypad 0-9
+    if 0x60 <= vk <= 0x69:
+        return chr(vk - 0x60 + 0x30)
+    # Main-row digits
+    if 0x30 <= vk <= 0x39:
+        return chr(vk)
+    # Letters (uppercase) — card readers typically emit these
+    if 0x41 <= vk <= 0x5A:
+        return chr(vk)
+    if vk == 0x20:  # space
+        return ' '
+    # Anything else (symbols) via MapVirtualKey
+    try:
+        res = _user32.MapVirtualKeyW(vk, 2)  # MAPVK_VK_TO_CHAR
+        if res & 0x80000000:
+            return None  # dead key
+        c = res & 0xFFFF
+        if 0x20 <= c <= 0x7E:
+            return chr(c)
+    except Exception:
+        pass
+    return None
+
+
+def _get_device_name(hdev):
+    """Return the Win32 device name (e.g. \\\\?\\HID#VID_08FF&PID_0009#...)."""
+    try:
+        size = wintypes.UINT(0)
+        if _user32.GetRawInputDeviceInfoW(hdev, RIDI_DEVICENAME, None, ctypes.byref(size)) == 0xFFFFFFFF:
+            return ''
+        if not size.value:
+            return ''
+        buf = ctypes.create_unicode_buffer(int(size.value) + 2)
+        if _user32.GetRawInputDeviceInfoW(hdev, RIDI_DEVICENAME, buf, ctypes.byref(size)) == 0xFFFFFFFF:
+            return ''
+        return buf.value or ''
+    except Exception:
+        return ''
+
+
+def _enumerate_keyboards():
+    """Return [{handle, name}] for all Raw-Input keyboard-type devices."""
+    result = []
+    try:
+        count = wintypes.UINT(0)
+        _user32.GetRawInputDeviceList(None, ctypes.byref(count), ctypes.sizeof(_RAWINPUTDEVICELIST))
+        if not count.value:
+            return result
+        buf = (_RAWINPUTDEVICELIST * count.value)()
+        n = _user32.GetRawInputDeviceList(buf, ctypes.byref(count), ctypes.sizeof(_RAWINPUTDEVICELIST))
+        for i in range(int(n)):
+            dev = buf[i]
+            if dev.dwType != RIM_TYPEKEYBOARD:
+                continue
+            result.append({'handle': dev.hDevice, 'name': _get_device_name(dev.hDevice)})
+    except Exception as e:
+        _log(f"enumerate_keyboards error: {e}")
+    return result
+
+
+def _choose_card_reader(override=''):
+    """Pick the most likely card-reader device, mirroring the Linux logic."""
+    keyboards = _enumerate_keyboards()
+    if not keyboards:
+        _log("No keyboard-type Raw Input devices found")
+        return None
+
+    for dev in keyboards:
+        _log(f"  candidate: {dev['name']}")
+
+    # Config override (substring of device name, e.g. VID_08FF)
+    if override:
+        for dev in keyboards:
+            if override.lower() in dev['name'].lower():
+                _log(f"Using config override -> {dev['name']}")
+                return dev
+        _log(f"No device matched config override '{override}'; continuing auto-detect")
+
+    exclusion = ('touch', 'mouse', 'trackpad', 'pen', 'stylus', 'monitor', 'video')
+
+    # Priority 1: explicit card / reader / rfid
+    for dev in keyboards:
+        name = dev['name'].lower()
+        if 'card' in name or 'reader' in name or 'rfid' in name:
+            _log(f"Priority 1 (explicit reader) -> {dev['name']}")
+            return dev
+
+    # Priority 2: USB HID keyboard that is NOT the PS/2 system keyboard
+    for dev in keyboards:
+        name = dev['name'].lower()
+        if 'hid' in name and 'vid' in name:
+            if any(p in name for p in ('pnp0303', 'pnp0c0e', 'pnp0320', 'acpi')):
+                continue
+            if any(k in name for k in exclusion):
+                continue
+            _log(f"Priority 2 (USB HID keyboard) -> {dev['name']}")
+            return dev
+
+    # Priority 3: any keyboard that isn't obviously a touchscreen/mouse
+    for dev in keyboards:
+        name = dev['name'].lower()
+        if any(k in name for k in exclusion):
+            continue
+        _log(f"Priority 3 (any keyboard) -> {dev['name']}")
+        return dev
+
+    _log(f"Fallback: using first keyboard device -> {keyboards[0]['name']}")
+    return keyboards[0]
+
+
+# ── WndProc / LL-hook callbacks (called on the pump thread) ─────────────────
+def _wnd_proc(hwnd, msg, wparam, lparam):
+    """Handle WM_INPUT / WM_INPUT_DEVICE_CHANGE for the hidden window."""
+    try:
+        reader = _ACTIVE_READER
+        if reader is not None:
+            if msg == WM_INPUT:
+                reader._on_raw_input(lparam)
+            elif msg == WM_INPUT_DEVICE_CHANGE:
+                reader._on_device_change()
+        return _user32.DefWindowProcW(hwnd, msg, wparam, lparam)
+    except Exception:
+        try:
+            return _user32.DefWindowProcW(hwnd, msg, wparam, lparam)
+        except Exception:
+            return 0
+
+
+def _ll_hook_proc(nCode, wParam, lParam):
+    """Low-level keyboard hook used as a fallback capture path."""
+    try:
+        if nCode == HC_ACTION:
+            reader = _ACTIVE_READER
+            if reader is not None and wParam in (WM_KEYDOWN, WM_SYSKEYDOWN):
+                kb = _KBDLLHOOKSTRUCT.from_address(lParam)
+                reader._on_key_event(kb.vkCode)
+        return _user32.CallNextHookEx(None, nCode, wParam, lParam)
+    except Exception:
+        try:
+            return _user32.CallNextHookEx(None, nCode, wParam, lParam)
+        except Exception:
+            return 1
+
+
+# ── Background message-pump thread ──────────────────────────────────────────
+class _RawInputThread(threading.Thread):
+    def __init__(self, owner):
+        super().__init__(daemon=True)
+        self._owner = owner
+        self._hwnd = None
+        self._hook = None
+        self.ready = threading.Event()
+
+    def run(self):
+        try:
+            hinst = _kernel32.GetModuleHandleW(None)
+            wndclass = _WNDCLASSW()
+            wndclass.lpfnWndProc = _WND_PROC(_wnd_proc)
+            wndclass.hInstance = hinst
+            wndclass.lpszClassName = _WND_CLASS_NAME
+            if not _user32.RegisterClassW(ctypes.byref(wndclass)):
+                raise ctypes.WinError(ctypes.get_last_error(), "RegisterClassW failed")
+            hwnd = _user32.CreateWindowExW(
+                0, _WND_CLASS_NAME, 'KiwyWinCardReader', 0,
+                0, 0, 0, 0, None, None, hinst, None,
+            )
+            if not hwnd:
+                raise ctypes.WinError(ctypes.get_last_error(), "CreateWindowExW failed")
+            self._hwnd = hwnd
+            self._owner._hwnd = hwnd
+
+            # Register Raw Input for ALL keyboards (sink = receive w/o focus)
+            rids = (_RAWINPUTDEVICE * 1)()
+            rids[0].usUsagePage = 0x01
+            rids[0].usUsage = 0x06  # Generic Desktop / Keyboard
+            rids[0].dwFlags = RIDEV_INPUTSINK | RIDEV_DEVNOTIFY
+            rids[0].hwndTarget = hwnd
+            raw_ok = bool(_user32.RegisterRawInputDevices(
+                rids, 1, ctypes.sizeof(_RAWINPUTDEVICE)))
+            self._owner._raw_ok = raw_ok
+            if raw_ok:
+                _log("Raw Input registered for keyboard devices")
+
+            # LL-hook fallback: use it when config says so, or if raw failed
+            mode = getattr(self._owner, '_mode', 'auto')
+            if mode == 'hook' or not raw_ok:
+                proc = _LL_KEYBOARD_PROC(_ll_hook_proc)
+                hook = _user32.SetWindowsHookExW(WH_KEYBOARD_LL, proc, hinst, 0)
+                if hook:
+                    self._hook = hook
+                    self._hook_proc = proc  # keep reference alive
+                    _log("Low-level keyboard hook ACTIVE (fallback capture)")
+
+            self.ready.set()
+
+            msg = _MSG()
+            while _user32.GetMessageW(ctypes.byref(msg), None, 0, 0) > 0:
+                _user32.TranslateMessage(ctypes.byref(msg))
+                _user32.DispatchMessageW(ctypes.byref(msg))
+
+            if self._hook:
+                try:
+                    _user32.UnhookWindowsHookEx(self._hook)
+                except Exception:
+                    pass
+            _user32.DestroyWindow(hwnd)
+            _user32.UnregisterClassW(_WND_CLASS_NAME, hinst)
+        except Exception as e:
+            _log(f"Message pump thread error: {e}")
+            self.ready.set()
+
+    def stop(self):
+        try:
+            if self._hwnd:
+                _user32.PostMessageW(self._hwnd, 0x0012, 0, 0)  # WM_QUIT
+        except Exception:
+            pass
+
+
+# ── Public drop-in replacement for the Linux CardReader ─────────────────────
+class WindowsCardReader:
+    """Windows-native card reader with the same interface as main.py's CardReader.
+
+    Interface used by SignagePlayer:
+        read_card_async(callback)  -> starts listening; callback(card_data) on
+                                      Enter, or callback(None) on timeout/cancel
+        stop_reading()             -> stops listening
+    """
+
+    def __init__(self):
+        self._device = None
+        self._device_name = ''
+        self._reading = False
+        self._finished = False
+        self._callback = None
+        self._card_buffer = []
+        self._last_activity = 0.0
+        self._timeout = 5.0
+        self._mode = 'auto'
+        self._hwnd = None
+        self._raw_ok = False
+        self._thread = None
+        self._lock = threading.Lock()
+        self._last_device_change = 0.0  # debounce WM_INPUT_DEVICE_CHANGE
+
+    # -- config -------------------------------------------------------
+    def _load_settings(self):
+        cfg = _get_config()
+        self._mode = str(cfg.get('card_reader_mode', 'auto')).lower().strip() or 'auto'
+        try:
+            self._timeout = float(cfg.get('card_reader_timeout', 5))
+        except Exception:
+            self._timeout = 5.0
+        if self._timeout <= 0:
+            self._timeout = 5.0
+        return str(cfg.get('card_reader_device', '') or '').strip()
+
+    # -- public API ---------------------------------------------------
+    def read_card_async(self, callback):
+        """Start reading; callback(card_data) on Enter, callback(None) on timeout."""
+        if self._reading:
+            _log("read_card_async called while already reading — ignoring")
+            return
+        override = self._load_settings()
+        global _ACTIVE_READER
+        _ACTIVE_READER = self
+
+        self._callback = callback
+        self._reading = True
+        self._finished = False
+        self._card_buffer = []
+        self._last_activity = time.time()
+
+        # Choose the target device (raw mode only). In 'hook' mode we capture
+        # from all keyboards via the LL-hook instead.
+        if self._mode != 'hook':
+            self._device = None
+            self._device_name = ''
+            chosen = _choose_card_reader(override=override)
+            if chosen:
+                self._device = chosen['handle']
+                self._device_name = chosen['name']
+                _log(f"Selected card reader: {chosen['name']}")
+            else:
+                _log("No dedicated device found — will accept any keyboard input")
+        else:
+            self._device = None
+            self._device_name = ''
+
+        # Ensure the message pump is running
+        if self._thread is None or not self._thread.is_alive():
+            self._thread = _RawInputThread(self)
+            self._thread.start()
+            self._thread.ready.wait(timeout=3.0)
+
+        # Watchdog for the 5-second timeout
+        threading.Thread(target=self._timeout_watchdog, daemon=True).start()
+        _log(f"Waiting for card swipe (mode={self._mode}, timeout={self._timeout}s)")
+
+    def stop_reading(self):
+        """Stop listening (also stops the timeout watchdog)."""
+        self._reading = False
+
+    def shutdown(self):
+        """Stop the background pump thread (call on app exit)."""
+        self.stop_reading()
+        global _ACTIVE_READER
+        if _ACTIVE_READER is self:
+            _ACTIVE_READER = None
+        if self._thread is not None:
+            self._thread.stop()
+
+    # -- internals ----------------------------------------------------
+    def _timeout_watchdog(self):
+        while self._reading and not self._finished:
+            if time.time() - self._last_activity > self._timeout:
+                _log("Read timeout — sending None")
+                self._finish(None)
+                return
+            time.sleep(0.25)
+
+    def _on_raw_input(self, lparam):
+        """Process a WM_INPUT message (called on the pump thread)."""
+        try:
+            size = wintypes.UINT(0)
+            _user32.GetRawInputData(lparam, RID_INPUT, None, ctypes.byref(size),
+                                    ctypes.sizeof(_RAWINPUTHEADER))
+            if not size.value:
+                return
+            buf = ctypes.create_string_buffer(int(size.value))
+            got = _user32.GetRawInputData(lparam, RID_INPUT, buf, ctypes.byref(size),
+                                          ctypes.sizeof(_RAWINPUTHEADER))
+            if got == 0xFFFFFFFF or got == 0:
+                return
+            raw = ctypes.cast(buf, ctypes.POINTER(_RAWINPUT)).contents
+            if raw.header.dwType != RIM_TYPEKEYBOARD:
+                return
+            # Only accept input from the selected card-reader device.
+            if self._device is not None and raw.header.hDevice != self._device:
+                return
+            kb = raw.u.keyboard
+            if kb.Message in (WM_KEYDOWN, WM_SYSKEYDOWN):
+                self._on_key_event(kb.VKey)
+        except Exception as e:
+            _log(f"_on_raw_input error: {e}")
+
+    def _on_device_change(self):
+        """A HID device was added/removed — re-select only if the actual
+        choice changes, and never more than once per second (the initial
+        registration/enumeration triggers a spurious change event)."""
+        try:
+            if not self._reading or self._mode == 'hook':
+                return
+            now = time.time()
+            if now - self._last_device_change < 1.0:
+                return  # debounce
+            self._last_device_change = now
+            override = str(_get_config().get('card_reader_device', '') or '').strip()
+            chosen = _choose_card_reader(override=override)
+            if chosen is None:
+                return
+            # Only re-select if the winning device actually changed.
+            if self._device is not None and chosen['handle'] == self._device:
+                return
+            self._device = chosen['handle']
+            self._device_name = chosen['name']
+            _log(f"Device change — re-selected: {chosen['name']}")
+        except Exception:
+            pass
+
+    def _on_key_event(self, vk):
+        """Handle a single key event (from Raw Input or LL-hook)."""
+        if not self._reading or self._finished:
+            return
+        if vk == _VK_RETURN:
+            data = ''.join(self._card_buffer).strip()
+            self._card_buffer = []
+            if data:
+                _log(f"Card read complete: '{data}' (len={len(data)})")
+                self._finish(data)
+            else:
+                # Accidental Enter with no data — keep waiting
+                self._last_activity = time.time()
+            return
+        if vk in (_VK_SHIFT, _VK_LSHIFT, _VK_RSHIFT,
+                  _VK_CONTROL, _VK_LCONTROL, _VK_RCONTROL,
+                  _VK_MENU, _VK_LMENU, _VK_RMENU,
+                  _VK_CAPITAL, _VK_TAB, _VK_ESCAPE):
+            return  # modifiers / control keys are not card data
+        ch = _vk_to_char(vk)
+        if ch:
+            self._card_buffer.append(ch)
+            self._last_activity = time.time()
+
+    def _finish(self, data):
+        """Deliver the result exactly once (thread-safe), on the Kivy thread."""
+        with self._lock:
+            if self._finished:
+                return
+            self._finished = True
+        self._reading = False
+        cb = self._callback
+        self._callback = None
+        if cb is None:
+            return
+        # Prefer scheduling on the Kivy thread when a Kivy app is running
+        # (the callback touches Kivy widgets). If Kivy isn't running
+        # (manual test / non-GUI context), invoke the callback directly.
+        kivy_running = False
+        try:
+            from kivy.app import App
+            kivy_running = App.get_running_app() is not None
+        except Exception:
+            kivy_running = False
+        if kivy_running:
+            try:
+                from kivy.clock import Clock
+                Clock.schedule_once(lambda dt, d=data: cb(d), 0)
+                return
+            except Exception:
+                pass
+        try:
+            cb(data)
+        except Exception:
+            pass
+
+
+if __name__ == '__main__':
+    # Simple manual test (no Kivy): run for a few seconds and print any card.
+    print("Windows Card Reader - manual test (swipe a card within 10s)")
+
+    def _cb(data):
+        print(f"CALLBACK: {data!r}")
+
+    reader = WindowsCardReader()
+    reader.read_card_async(_cb)
+    try:
+        time.sleep(10)
+    except KeyboardInterrupt:
+        pass
+    reader.stop_reading()
+    reader.shutdown()
+    print("Test done.")

working_files/execute_playlist_retrieve.py

@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+"""
+Execute the exact server playlist retrieval flow the player performs:
+  1. Load config/app_config.json (player code: screen_name + quickconnect_key)
+  2. Authenticate with the server (POST /api/auth/player)
+  3. Fetch playlist using the player_id + auth_code (GET /api/playlists/{player_id})
+  4. Print the RAW JSON exactly as received (before any local processing)
+"""
+import os
+import sys
+import json
+import traceback
+
+# Resolve the real src directory (script lives in working_files/, source is in src/)
+HERE = os.path.dirname(os.path.abspath(__file__))
+SRC_DIR = os.path.join(os.path.dirname(HERE), 'src')
+sys.path.insert(0, SRC_DIR)
+
+from get_playlists_v2 import get_auth_instance  # noqa: E402
+from player_auth import PlayerAuth  # noqa: E402
+
+CONFIG_PATH = os.path.join(os.path.dirname(HERE), 'config', 'app_config.json')
+
+
+def main():
+    print("=" * 80)
+    print("EXECUTE SERVER PLAYLIST RETRIEVAL (player flow)")
+    print("=" * 80)
+
+    # 1. Load the player config
+    with open(CONFIG_PATH, 'r') as f:
+        config = json.load(f)
+
+    print(f"\n[1] Player config loaded from: {CONFIG_PATH}")
+    print(f"    server_ip      : {config.get('server_ip')}")
+    print(f"    port           : {config.get('port')}")
+    print(f"    screen_name    : {config.get('screen_name')}   <- player code")
+    print(f"    quickconnect_key: {config.get('quickconnect_key')}   <- player quick-connect code")
+    print(f"    use_https      : {config.get('use_https')}")
+    print(f"    verify_ssl     : {config.get('verify_ssl')}")
+
+    # 2. Build server URL the same way ensure_authenticated() does
+    import re
+    server_ip = config.get("server_ip", "")
+    port = config.get("port", "")
+    use_https = config.get("use_https", True)
+    ip_pattern = r'^\d+\.\d+\.\d+\.\d+$'
+    if re.match(ip_pattern, server_ip):
+        if use_https:
+            server_url = f'https://{server_ip}:{port}' if port else f'https://{server_ip}'
+        else:
+            server_url = f'http://{server_ip}:{port}' if port else f'http://{server_ip}'
+    else:
+        server_url = f'https://{server_ip}' if use_https else f'http://{server_ip}'
+    print(f"\n[2] Server URL used: {server_url}")
+
+    # 3. Authenticate with the player code
+    auth = get_auth_instance(
+        config_file=os.path.join(SRC_DIR, 'player_auth.json'),
+        use_https=config.get('use_https', True),
+        verify_ssl=config.get('verify_ssl', True)
+    )
+
+    print(f"\n[3] Authenticating player '{config.get('screen_name')}' with quickconnect code...")
+    success, error = auth.authenticate(
+        server_url=server_url,
+        hostname=config.get('screen_name', ''),
+        quickconnect_code=config.get('quickconnect_key', '')
+    )
+    if not success:
+        print(f"    AUTH FAILED: {error}")
+        print("    Cannot retrieve playlist without a valid player code/auth.")
+        return
+    print(f"    Authenticated as: {auth.get_player_name()} (player_id={auth.get_player_id()}, "
+          f"playlist_id={auth.auth_data.get('playlist_id')})")
+
+    # 4. Fetch the playlist (GET /api/playlists/{player_id})
+    print(f"\n[4] Fetching playlist from: {server_url}/api/playlists/{auth.get_player_id()}")
+    playlist_data = auth.get_playlist()
+
+    if playlist_data is None:
+        print("    PLAYLIST FETCH FAILED")
+        return
+
+    # 5. Print the RAW JSON exactly as received from the server
+    print(f"\n[5] RAW JSON received from server (status 200):\n")
+    print(json.dumps(playlist_data, indent=2, ensure_ascii=False))
+
+    # 6. Save the raw response for inspection
+    out_path = os.path.join(HERE, 'raw_server_playlist.json')
+    with open(out_path, 'w', encoding='utf-8') as f:
+        json.dump(playlist_data, f, indent=2, ensure_ascii=False)
+    print(f"\n[6] Raw server response saved to: {out_path}")
+
+    # 7. Summary
+    print("\n" + "=" * 80)
+    print(f"SUMMARY: playlist_version={playlist_data.get('playlist_version')}, "
+          f"count={playlist_data.get('count')}, items={len(playlist_data.get('playlist', []))}")
+    print("=" * 80)
+
+
+if __name__ == '__main__':
+    try:
+        main()
+    except Exception:
+        traceback.print_exc()
+        sys.exit(1)

working_files/player_auth.json

@@ -1,10 +0,0 @@
-{
-  "hostname": "tv-terasa",
-  "auth_code": "iiSyZDLWGyqNIxeRt54XYREgvAio11RwwU1_oJev6WI",
-  "player_id": 1,
-  "player_name": "TV-acasa 1",
-  "playlist_id": 1,
-  "orientation": "Landscape",
-  "authenticated": true,
-  "server_url": "http://digi-signage.moto-adv.com"
-}

working_files/raw_server_playlist.json

@@ -0,0 +1,81 @@
+{
+  "count": 6,
+  "player_id": 2,
+  "player_name": "Windows-Player1",
+  "playlist": [
+    {
+      "audio": "off",
+      "description": null,
+      "duration": 30,
+      "edit_on_player": false,
+      "file_name": "anders-jilden-cYrMQA7a3Wc-unsplash.jpg",
+      "id": 9,
+      "muted": true,
+      "position": 1,
+      "type": "image",
+      "url": "http://192.168.0.107:8080/static/uploads/anders-jilden-cYrMQA7a3Wc-unsplash.jpg"
+    },
+    {
+      "audio": "off",
+      "description": null,
+      "duration": 14,
+      "edit_on_player": true,
+      "file_name": "sean-oulashin-KMn4VEeEPR8-unsplash.jpg",
+      "id": 2,
+      "muted": true,
+      "position": 2,
+      "type": "image",
+      "url": "http://192.168.0.107:8080/static/uploads/sean-oulashin-KMn4VEeEPR8-unsplash.jpg"
+    },
+    {
+      "audio": "on",
+      "description": null,
+      "duration": 31,
+      "edit_on_player": false,
+      "file_name": "sample-30s.mp4",
+      "id": 4,
+      "muted": false,
+      "position": 3,
+      "type": "video",
+      "url": "http://192.168.0.107:8080/static/uploads/sample-30s.mp4"
+    },
+    {
+      "audio": "off",
+      "description": null,
+      "duration": 50,
+      "edit_on_player": true,
+      "file_name": "edited_media/5/eye_e_v2.jpg",
+      "id": 5,
+      "muted": true,
+      "position": 4,
+      "type": "image",
+      "url": "http://192.168.0.107:8080/static/uploads/edited_media/5/eye_e_v2.jpg"
+    },
+    {
+      "audio": "off",
+      "description": "https://moto-adv.com/",
+      "duration": 30,
+      "edit_on_player": false,
+      "file_name": "weblink-ecc2705c34e5",
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