refactor(mobile): video controls

mobile/lib/constants/immich_colors.dart

@@ -19,6 +19,8 @@ const String defaultColorPresetName = "indigo";
 
 const Color immichBrandColorLight = Color(0xFF4150AF);
 const Color immichBrandColorDark = Color(0xFFACCBFA);
+const Color whiteOpacity75 = Color.fromARGB((0.75 * 255) ~/ 1, 255, 255, 255);
+const Color blackOpacity40 = Color.fromARGB((0.40 * 255) ~/ 1, 0, 0, 0);
 
 final Map<ImmichColorPreset, ImmichTheme> _themePresetsMap = {
   ImmichColorPreset.indigo: ImmichTheme(

mobile/lib/utils/immich_app_theme.dart

@@ -7,10 +7,10 @@ import 'package:immich_mobile/providers/app_settings.provider.dart';
 import 'package:immich_mobile/services/app_settings.service.dart';
 
 class ImmichTheme {
-  ColorScheme light;
-  ColorScheme dark;
+  final ColorScheme light;
+  final ColorScheme dark;
 
-  ImmichTheme({required this.light, required this.dark});
+  const ImmichTheme({required this.light, required this.dark});
 }
 
 ImmichTheme? _immichDynamicTheme;
@@ -151,7 +151,7 @@ ThemeData getThemeData({required ColorScheme colorScheme}) {
 
   return ThemeData(
     useMaterial3: true,
-    brightness: isDark ? Brightness.dark : Brightness.light,
+    brightness: colorScheme.brightness,
     colorScheme: colorScheme,
     primaryColor: primaryColor,
     hintColor: colorScheme.onSurfaceSecondary,

mobile/lib/widgets/asset_viewer/formatted_duration.dart

@@ -0,0 +1,33 @@
+import 'package:flutter/material.dart';
+import 'package:immich_mobile/constants/immich_colors.dart';
+
+@pragma('vm:prefer-inline')
+String _formatDuration(Duration position) {
+  final seconds = position.inSeconds.remainder(60).toString().padLeft(2, "0");
+  final minutes = position.inMinutes.remainder(60).toString().padLeft(2, "0");
+  if (position.inHours == 0) {
+    return "$minutes:$seconds";
+  }
+  final hours = position.inHours.toString().padLeft(2, '0');
+  return "$hours:$minutes:$seconds";
+}
+
+class FormattedDuration extends StatelessWidget {
+  final Duration data;
+  const FormattedDuration(this.data, {super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      width: data.inHours > 0 ? 62 : 41, // use a fixed width to prevent jitter
+      child: Text(
+        _formatDuration(data),
+        style: const TextStyle(
+          fontSize: 14.0,
+          color: whiteOpacity75,
+          fontWeight: FontWeight.normal,
+        ),
+      ),
+    );
+  }
+}

mobile/lib/widgets/asset_viewer/video_controls.dart

@@ -1,125 +1,35 @@
-import 'dart:math';
-
 import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/constants/immich_colors.dart';
 import 'package:immich_mobile/providers/asset_viewer/show_controls.provider.dart';
-import 'package:immich_mobile/providers/asset_viewer/video_player_controls_provider.dart';
-import 'package:immich_mobile/providers/asset_viewer/video_player_value_provider.dart';
+import 'package:immich_mobile/widgets/asset_viewer/video_position.dart';
 
-/// The video controls for the [videPlayerControlsProvider]
+/// The video controls for the [videoPlayerControlsProvider]
 class VideoControls extends ConsumerWidget {
   const VideoControls({super.key});
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    final duration =
-        ref.watch(videoPlaybackValueProvider.select((v) => v.duration));
-    final position =
-        ref.watch(videoPlaybackValueProvider.select((v) => v.position));
-
+    final isPortrait =
+        MediaQuery.orientationOf(context) == Orientation.portrait;
     return AnimatedOpacity(
       opacity: ref.watch(showControlsProvider) ? 1.0 : 0.0,
       duration: const Duration(milliseconds: 100),
-      child: OrientationBuilder(
-        builder: (context, orientation) => Container(
-          padding: EdgeInsets.symmetric(
-            horizontal: orientation == Orientation.portrait ? 12.0 : 64.0,
-          ),
-          color: Colors.black.withOpacity(0.4),
-          child: Padding(
-            padding: MediaQuery.of(context).orientation == Orientation.portrait
-                ? const EdgeInsets.symmetric(horizontal: 12.0)
-                : const EdgeInsets.symmetric(horizontal: 64.0),
-            child: Row(
-              children: [
-                Text(
-                  _formatDuration(position),
-                  style: TextStyle(
-                    fontSize: 14.0,
-                    color: Colors.white.withOpacity(.75),
-                    fontWeight: FontWeight.normal,
-                  ),
-                ),
-                Expanded(
-                  child: Slider(
-                    value: duration == Duration.zero
-                        ? 0.0
-                        : min(
-                            position.inMicroseconds /
-                                duration.inMicroseconds *
-                                100,
-                            100,
-                          ),
-                    min: 0,
-                    max: 100,
-                    thumbColor: Colors.white,
-                    activeColor: Colors.white,
-                    inactiveColor: Colors.white.withOpacity(0.75),
-                    onChanged: (position) {
-                      ref.read(videoPlayerControlsProvider.notifier).position =
-                          position;
-                    },
-                  ),
-                ),
-                Text(
-                  _formatDuration(duration),
-                  style: TextStyle(
-                    fontSize: 14.0,
-                    color: Colors.white.withOpacity(.75),
-                    fontWeight: FontWeight.normal,
-                  ),
-                ),
-                IconButton(
-                  icon: Icon(
-                    ref.watch(
-                      videoPlayerControlsProvider.select((value) => value.mute),
-                    )
-                        ? Icons.volume_off
-                        : Icons.volume_up,
-                  ),
-                  onPressed: () => ref
-                      .read(videoPlayerControlsProvider.notifier)
-                      .toggleMute(),
-                  color: Colors.white,
-                ),
-              ],
+      child: isPortrait
+          ? const ColoredBox(
+              color: blackOpacity40,
+              child: Padding(
+                padding: EdgeInsets.symmetric(horizontal: 24.0),
+                child: VideoPosition(),
+              ),
+            )
+          : const ColoredBox(
+              color: blackOpacity40,
+              child: Padding(
+                padding: EdgeInsets.symmetric(horizontal: 128.0),
+                child: VideoPosition(),
+              ),
             ),
-          ),
-        ),
-      ),
     );
   }
-
-  String _formatDuration(Duration position) {
-    final ms = position.inMilliseconds;
-
-    int seconds = ms ~/ 1000;
-    final int hours = seconds ~/ 3600;
-    seconds = seconds % 3600;
-    final minutes = seconds ~/ 60;
-    seconds = seconds % 60;
-
-    final hoursString = hours >= 10
-        ? '$hours'
-        : hours == 0
-            ? '00'
-            : '0$hours';
-
-    final minutesString = minutes >= 10
-        ? '$minutes'
-        : minutes == 0
-            ? '00'
-            : '0$minutes';
-
-    final secondsString = seconds >= 10
-        ? '$seconds'
-        : seconds == 0
-            ? '00'
-            : '0$seconds';
-
-    final formattedTime =
-        '${hoursString == '00' ? '' : '$hoursString:'}$minutesString:$secondsString';
-
-    return formattedTime;
-  }
 }

mobile/lib/widgets/asset_viewer/video_mute_button.dart

@@ -0,0 +1,21 @@
+import 'package:flutter/material.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/providers/asset_viewer/video_player_controls_provider.dart';
+
+class VideoMuteButton extends ConsumerWidget {
+  const VideoMuteButton({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return IconButton(
+      icon: ref.watch(
+        videoPlayerControlsProvider.select((value) => value.mute),
+      )
+          ? const Icon(Icons.volume_off)
+          : const Icon(Icons.volume_up),
+      onPressed: () =>
+          ref.read(videoPlayerControlsProvider.notifier).toggleMute(),
+      color: Colors.white,
+    );
+  }
+}

mobile/lib/widgets/asset_viewer/video_position.dart

@@ -0,0 +1,86 @@
+import 'dart:math';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/constants/immich_colors.dart';
+import 'package:immich_mobile/providers/asset_viewer/video_player_controls_provider.dart';
+import 'package:immich_mobile/providers/asset_viewer/video_player_value_provider.dart';
+import 'package:immich_mobile/widgets/asset_viewer/formatted_duration.dart';
+import 'package:immich_mobile/widgets/asset_viewer/video_mute_button.dart';
+
+class VideoPosition extends HookConsumerWidget {
+  const VideoPosition({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final (position, duration) = ref.watch(
+      videoPlaybackValueProvider.select((v) => (v.position, v.duration)),
+    );
+    final wasPlaying = useRef<bool>(true);
+    return duration == Duration.zero
+        ? const _VideoPositionPlaceholder()
+        : Row(
+            children: [
+              FormattedDuration(position),
+              Expanded(
+                child: Slider(
+                  value: min(
+                    position.inMicroseconds / duration.inMicroseconds * 100,
+                    100,
+                  ),
+                  min: 0,
+                  max: 100,
+                  thumbColor: Colors.white,
+                  activeColor: Colors.white,
+                  inactiveColor: whiteOpacity75,
+                  onChangeStart: (value) {
+                    final state = ref.read(videoPlaybackValueProvider).state;
+                    wasPlaying.value = state != VideoPlaybackState.paused;
+                    ref.read(videoPlayerControlsProvider.notifier).pause();
+                  },
+                  onChangeEnd: (value) {
+                    if (wasPlaying.value) {
+                      ref.read(videoPlayerControlsProvider.notifier).play();
+                    }
+                  },
+                  onChanged: (position) {
+                    ref.read(videoPlayerControlsProvider.notifier).position =
+                        position;
+                  },
+                ),
+              ),
+              FormattedDuration(duration),
+              const VideoMuteButton(),
+            ],
+          );
+  }
+}
+
+class _VideoPositionPlaceholder extends StatelessWidget {
+  const _VideoPositionPlaceholder();
+
+  static void _onChangedDummy(_) {}
+
+  @override
+  Widget build(BuildContext context) {
+    return const Row(
+      children: [
+        FormattedDuration(Duration.zero),
+        Expanded(
+          child: Slider(
+            value: 0.0,
+            min: 0,
+            max: 100,
+            thumbColor: Colors.white,
+            activeColor: Colors.white,
+            inactiveColor: whiteOpacity75,
+            onChanged: _onChangedDummy,
+          ),
+        ),
+        FormattedDuration(Duration.zero),
+        VideoMuteButton(),
+      ],
+    );
+  }
+}