WebClient: 3.44 webcodecs offline (#15722)

* feat(web): zero-readback WebCodecs video path

Decoded VideoFrames from js/src/webcodecs.js are handed to Flutter via
window.onVideoFrame and imported GPU-side with createImageFromTextureSource;
any failure unregisters the hook so the JS side falls back to RGBA readback.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(web): load bundled terminal font when Google CDNs are unreachable

In air-gapped deployments GoogleFonts.robotoMono() cannot download the
terminal font; when index.html signals offline mode, load the copy bundled
with the web app under the family name google_fonts registers.

Part of the fix for rustdesk/rustdesk-server-pro#996.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ci: bump windows arm64 to Flutter 3.44.8, add web build patch script

apply_flutter_3.44_web_patches.sh prepares a 3.44.x web build on top of the
shared source patches: qr_code_scanner's web impl needs dart:ui_web for the
removed platformViewRegistry, and flutter/web/fonts is refreshed to the font
paths the 3.44 engine requests. The disabled build-rustdesk-web job runs it
automatically once FLUTTER_VERSION moves to 3.44.x, and version-guarded
'Patch flutter' steps no longer fail when the guard does not match.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(web): prevent stale WebCodecs frames across sessions

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(web): harden WebCodecs reconnect and Flutter 3.44 patches

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(ci): harden Flutter 3.44 patch input validation

Validate required files before checking patch state,
parameterize the theme-range validator, and prevent
missing inputs from satisfying NO_MATCHES checks.

Signed-off-by: fufesou <linlong1266@gmail.com>

* Remove unused code

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(web): retry font loading and dispose stale decoded images

Signed-off-by: fufesou <linlong1266@gmail.com>

* remove unused code

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(web): Bad state: RenderBox was not laid out

Signed-off-by: fufesou <linlong1266@gmail.com>

---------

Signed-off-by: fufesou <linlong1266@gmail.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: fufesou <linlong1266@gmail.com>

.github/workflows/bridge.yml

@@ -30,7 +30,7 @@ jobs:
               target: x86_64-unknown-linux-gnu,
               os: ubuntu-22.04,
               extra-build-args: "",
-              flutter-version: "3.44.0",
+              flutter-version: "3.44.8",
               artifact-name: "bridge-artifact-flutter-3.44",
             }
     steps:

.github/workflows/flutter-build.yml

@@ -31,7 +31,7 @@ env:
   # engine is 3.44. Every other platform stays on FLUTTER_VERSION (3.24.5) until Windows 7
   # support is restored after the upstream-wide Flutter bump. The arm64 job patches the few
   # 3.44-only source/pubspec changes on the fly (see "Patch RustDesk sources for Flutter 3.44").
-  FLUTTER_WINDOWS_ARM_VERSION: "3.44.0"
+  FLUTTER_WINDOWS_ARM_VERSION: "3.44.8"
   # for arm64 linux because official Dart SDK does not work
   FLUTTER_ELINUX_VERSION: "3.16.9"
   TAG_NAME: "${{ inputs.upload-tag }}"
@@ -224,7 +224,9 @@ jobs:
         run: |
           cp .github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff $(dirname $(dirname $(which flutter)))
           cd $(dirname $(dirname $(which flutter)))
-          [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]] && git apply flutter_3.24.4_dropdown_menu_enableFilter.diff
+          if [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]]; then
+            git apply flutter_3.24.4_dropdown_menu_enableFilter.diff
+          fi
 
       - name: Patch RustDesk sources for Flutter 3.44 (arm64)
         # arm64 is the only target on Flutter 3.44; apply its source/pubspec deltas on the fly
@@ -595,7 +597,9 @@ jobs:
       - name: Patch flutter
         run: |
           cd $(dirname $(dirname $(which flutter)))
-          [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]] && git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          if [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]]; then
+            git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          fi
 
       - name: Setup vcpkg with Github Actions binary cache
         uses: lukka/run-vcpkg@b1a0dd252f06b9e25b3c022a9a03bd7a427fb6a2 # v11
@@ -774,7 +778,9 @@ jobs:
       - name: Patch flutter
         run: |
           cd $(dirname $(dirname $(which flutter)))
-          [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]] && git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          if [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]]; then
+            git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          fi
 
       - name: Workaround for flutter issue
         shell: bash
@@ -1033,7 +1039,9 @@ jobs:
       - name: Patch flutter
         run: |
           cd $(dirname $(dirname $(which flutter)))
-          [[ "3.24.5" == ${{env.ANDROID_FLUTTER_VERSION}} ]] && git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          if [[ "3.24.5" == ${{env.ANDROID_FLUTTER_VERSION}} ]]; then
+            git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          fi
 
       - uses: nttld/setup-ndk@ed92fe6cadad69be94a966a7ee3271275e62f779 # v1
         id: setup-ndk
@@ -1305,7 +1313,9 @@ jobs:
       - name: Patch flutter
         run: |
           cd $(dirname $(dirname $(which flutter)))
-          [[ "3.24.5" == ${{env.ANDROID_FLUTTER_VERSION}} ]] && git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          if [[ "3.24.5" == ${{env.ANDROID_FLUTTER_VERSION}} ]]; then
+            git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          fi
 
       - name: Restore bridge files
         uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
@@ -2413,7 +2423,18 @@ jobs:
         shell: bash
         run: |
           cd $(dirname $(dirname $(which flutter)))
-          [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]] && git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          if [[ "3.24.5" == ${{env.FLUTTER_VERSION}} ]]; then
+            git apply ${{ github.workspace }}/.github/patches/flutter_3.24.4_dropdown_menu_enableFilter.diff
+          fi
+
+      - name: Patch sources for Flutter 3.44 web
+        # No-op while the web stays on Flutter 3.24.5; makes this job work as-is
+        # once FLUTTER_VERSION moves to 3.44.x (qr_code_scanner + fonts, see script).
+        shell: bash
+        run: |
+          if [[ "${{ env.FLUTTER_VERSION }}" == 3.44.* ]]; then
+            bash .github/patches/apply_flutter_3.44_web_patches.sh
+          fi
 
       # https://rustdesk.com/docs/en/dev/build/web/
       - name: Build web