aves/lib/widgets/viewer/overlay/bottom/video.dart
2021-09-28 18:28:25 +09:00

439 lines
15 KiB
Dart

import 'dart:async';
import 'package:aves/model/actions/video_actions.dart';
import 'package:aves/model/entry.dart';
import 'package:aves/model/settings/settings.dart';
import 'package:aves/services/android_app_service.dart';
import 'package:aves/theme/durations.dart';
import 'package:aves/theme/format.dart';
import 'package:aves/theme/icons.dart';
import 'package:aves/utils/constants.dart';
import 'package:aves/widgets/common/basic/menu.dart';
import 'package:aves/widgets/common/basic/popup_menu_button.dart';
import 'package:aves/widgets/common/extensions/build_context.dart';
import 'package:aves/widgets/common/fx/blurred.dart';
import 'package:aves/widgets/common/fx/borders.dart';
import 'package:aves/widgets/viewer/overlay/common.dart';
import 'package:aves/widgets/viewer/video/controller.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart';
import 'package:provider/provider.dart';
class VideoControlOverlay extends StatefulWidget {
final AvesEntry entry;
final AvesVideoController? controller;
final Animation<double> scale;
final Function(VideoAction value) onActionSelected;
final VoidCallback onActionMenuOpened;
const VideoControlOverlay({
Key? key,
required this.entry,
required this.controller,
required this.scale,
required this.onActionSelected,
required this.onActionMenuOpened,
}) : super(key: key);
@override
State<StatefulWidget> createState() => _VideoControlOverlayState();
}
class _VideoControlOverlayState extends State<VideoControlOverlay> with SingleTickerProviderStateMixin {
final GlobalKey _progressBarKey = GlobalKey(debugLabel: 'video-progress-bar');
bool _playingOnDragStart = false;
AvesEntry get entry => widget.entry;
Animation<double> get scale => widget.scale;
AvesVideoController? get controller => widget.controller;
Stream<VideoStatus> get statusStream => controller?.statusStream ?? Stream.value(VideoStatus.idle);
Stream<int> get positionStream => controller?.positionStream ?? Stream.value(0);
bool get isPlaying => controller?.isPlaying ?? false;
static const double outerPadding = 8;
static const double innerPadding = 8;
@override
Widget build(BuildContext context) {
return StreamBuilder<VideoStatus>(
stream: statusStream,
builder: (context, snapshot) {
// do not use stream snapshot because it is obsolete when switching between videos
final status = controller?.status ?? VideoStatus.idle;
Widget child;
if (status == VideoStatus.error) {
child = Align(
alignment: AlignmentDirectional.centerEnd,
child: OverlayButton(
scale: scale,
child: IconButton(
icon: const Icon(AIcons.openOutside),
onPressed: () => AndroidAppService.open(entry.uri, entry.mimeTypeAnySubtype),
tooltip: context.l10n.viewerOpenTooltip,
),
),
);
} else {
child = Selector<MediaQueryData, double>(
selector: (context, mq) => mq.size.width - mq.padding.horizontal,
builder: (context, mqWidth, child) {
final buttonWidth = OverlayButton.getSize(context);
final availableCount = ((mqWidth - outerPadding * 2) / (buttonWidth + innerPadding)).floor();
final quickActions = settings.videoQuickActions.take(availableCount - 1).toList();
final menuActions = VideoActions.all.where((action) => !quickActions.contains(action)).toList();
return Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.end,
children: [
_ButtonRow(
quickActions: quickActions,
menuActions: menuActions,
scale: scale,
controller: controller,
onActionSelected: widget.onActionSelected,
onActionMenuOpened: widget.onActionMenuOpened,
),
const SizedBox(height: 8),
_buildProgressBar(),
],
);
},
);
}
return TooltipTheme(
data: TooltipTheme.of(context).copyWith(
preferBelow: false,
),
child: child,
);
});
}
Widget _buildProgressBar() {
const progressBarBorderRadius = 123.0;
final blurred = settings.enableOverlayBlurEffect;
return SizeTransition(
sizeFactor: scale,
child: BlurredRRect(
enabled: blurred,
borderRadius: progressBarBorderRadius,
child: GestureDetector(
onTapDown: (details) {
_seekFromTap(details.globalPosition);
},
onHorizontalDragStart: (details) {
_playingOnDragStart = isPlaying;
if (_playingOnDragStart) controller!.pause();
},
onHorizontalDragUpdate: (details) {
_seekFromTap(details.globalPosition);
},
onHorizontalDragEnd: (details) {
if (_playingOnDragStart) controller!.play();
},
child: Container(
padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 16) + const EdgeInsets.only(bottom: 16),
decoration: BoxDecoration(
color: overlayBackgroundColor(blurred: blurred),
border: AvesBorder.border,
borderRadius: const BorderRadius.all(Radius.circular(progressBarBorderRadius)),
),
child: Column(
key: _progressBarKey,
children: [
Row(
children: [
StreamBuilder<int>(
stream: positionStream,
builder: (context, snapshot) {
// do not use stream snapshot because it is obsolete when switching between videos
final position = controller?.currentPosition.floor() ?? 0;
return Text(
formatFriendlyDuration(Duration(milliseconds: position)),
style: const TextStyle(shadows: Constants.embossShadows),
);
}),
const Spacer(),
Text(
entry.durationText,
style: const TextStyle(shadows: Constants.embossShadows),
),
],
),
ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(4)),
child: StreamBuilder<int>(
stream: positionStream,
builder: (context, snapshot) {
// do not use stream snapshot because it is obsolete when switching between videos
var progress = controller?.progress ?? 0.0;
if (!progress.isFinite) progress = 0.0;
return LinearProgressIndicator(
value: progress,
backgroundColor: Colors.grey.shade700,
);
}),
),
],
),
),
),
),
);
}
void _seekFromTap(Offset globalPosition) async {
if (controller == null) return;
final keyContext = _progressBarKey.currentContext!;
final box = keyContext.findRenderObject() as RenderBox;
final localPosition = box.globalToLocal(globalPosition);
await controller!.seekToProgress(localPosition.dx / box.size.width);
}
}
class _ButtonRow extends StatelessWidget {
final List<VideoAction> quickActions, menuActions;
final Animation<double> scale;
final AvesVideoController? controller;
final Function(VideoAction value) onActionSelected;
final VoidCallback onActionMenuOpened;
const _ButtonRow({
Key? key,
required this.quickActions,
required this.menuActions,
required this.scale,
required this.controller,
required this.onActionSelected,
required this.onActionMenuOpened,
}) : super(key: key);
static const double padding = 8;
bool get isPlaying => controller?.isPlaying ?? false;
@override
Widget build(BuildContext context) {
return Row(
mainAxisSize: MainAxisSize.min,
children: [
...quickActions.map((action) => _buildOverlayButton(context, action)),
if (menuActions.isNotEmpty)
Padding(
padding: const EdgeInsetsDirectional.only(start: padding),
child: OverlayButton(
scale: scale,
child: MenuIconTheme(
child: AvesPopupMenuButton<VideoAction>(
itemBuilder: (context) => menuActions.map((action) => _buildPopupMenuItem(context, action)).toList(),
onSelected: (action) async {
// wait for the popup menu to hide before proceeding with the action
await Future.delayed(Durations.popupMenuAnimation * timeDilation);
onActionSelected(action);
},
onMenuOpened: onActionMenuOpened,
),
),
),
),
],
);
}
Widget _buildOverlayButton(BuildContext context, VideoAction action) {
late Widget child;
void onPressed() => onActionSelected(action);
ValueListenableBuilder<bool> _buildFromListenable(ValueListenable<bool>? enabledNotifier) {
return ValueListenableBuilder<bool>(
valueListenable: enabledNotifier ?? ValueNotifier(false),
builder: (context, canDo, child) => IconButton(
icon: child!,
onPressed: canDo ? onPressed : null,
tooltip: action.getText(context),
),
child: action.getIcon(),
);
}
switch (action) {
case VideoAction.captureFrame:
child = _buildFromListenable(controller?.canCaptureFrameNotifier);
break;
case VideoAction.selectStreams:
child = _buildFromListenable(controller?.canSelectStreamNotifier);
break;
case VideoAction.setSpeed:
child = _buildFromListenable(controller?.canSetSpeedNotifier);
break;
case VideoAction.togglePlay:
child = _PlayToggler(
controller: controller,
onPressed: onPressed,
);
break;
case VideoAction.replay10:
case VideoAction.skip10:
case VideoAction.settings:
child = IconButton(
icon: action.getIcon(),
onPressed: onPressed,
tooltip: action.getText(context),
);
break;
}
return Padding(
padding: const EdgeInsetsDirectional.only(start: padding),
child: OverlayButton(
scale: scale,
child: child,
),
);
}
PopupMenuEntry<VideoAction> _buildPopupMenuItem(BuildContext context, VideoAction action) {
late final bool enabled;
switch (action) {
case VideoAction.captureFrame:
enabled = controller?.canCaptureFrameNotifier.value ?? false;
break;
case VideoAction.selectStreams:
enabled = controller?.canSelectStreamNotifier.value ?? false;
break;
case VideoAction.setSpeed:
enabled = controller?.canSetSpeedNotifier.value ?? false;
break;
case VideoAction.replay10:
case VideoAction.skip10:
case VideoAction.settings:
case VideoAction.togglePlay:
enabled = true;
break;
}
Widget? child;
switch (action) {
case VideoAction.togglePlay:
child = _PlayToggler(
controller: controller,
isMenuItem: true,
);
break;
case VideoAction.captureFrame:
case VideoAction.replay10:
case VideoAction.skip10:
case VideoAction.selectStreams:
case VideoAction.setSpeed:
case VideoAction.settings:
child = MenuRow(text: action.getText(context), icon: action.getIcon());
break;
}
return PopupMenuItem(
value: action,
enabled: enabled,
child: child,
);
}
}
class _PlayToggler extends StatefulWidget {
final AvesVideoController? controller;
final bool isMenuItem;
final VoidCallback? onPressed;
const _PlayToggler({
required this.controller,
this.isMenuItem = false,
this.onPressed,
});
@override
_PlayTogglerState createState() => _PlayTogglerState();
}
class _PlayTogglerState extends State<_PlayToggler> with SingleTickerProviderStateMixin {
final List<StreamSubscription> _subscriptions = [];
late AnimationController _playPauseAnimation;
AvesVideoController? get controller => widget.controller;
bool get isPlaying => controller?.isPlaying ?? false;
@override
void initState() {
super.initState();
_playPauseAnimation = AnimationController(
duration: context.read<DurationsData>().iconAnimation,
vsync: this,
);
_registerWidget(widget);
}
@override
void didUpdateWidget(covariant _PlayToggler oldWidget) {
super.didUpdateWidget(oldWidget);
_unregisterWidget(oldWidget);
_registerWidget(widget);
}
@override
void dispose() {
_unregisterWidget(widget);
_playPauseAnimation.dispose();
super.dispose();
}
void _registerWidget(_PlayToggler widget) {
final controller = widget.controller;
if (controller != null) {
_subscriptions.add(controller.statusStream.listen(_onStatusChange));
_onStatusChange(controller.status);
}
}
void _unregisterWidget(_PlayToggler widget) {
_subscriptions
..forEach((sub) => sub.cancel())
..clear();
}
@override
Widget build(BuildContext context) {
if (widget.isMenuItem) {
return isPlaying
? MenuRow(
text: context.l10n.videoActionPause,
icon: const Icon(AIcons.pause),
)
: MenuRow(
text: context.l10n.videoActionPlay,
icon: const Icon(AIcons.play),
);
}
return IconButton(
icon: AnimatedIcon(
icon: AnimatedIcons.play_pause,
progress: _playPauseAnimation,
),
onPressed: widget.onPressed,
tooltip: isPlaying ? context.l10n.videoActionPause : context.l10n.videoActionPlay,
);
}
void _onStatusChange(VideoStatus status) {
final status = _playPauseAnimation.status;
if (isPlaying && status != AnimationStatus.forward && status != AnimationStatus.completed) {
_playPauseAnimation.forward();
} else if (!isPlaying && status != AnimationStatus.reverse && status != AnimationStatus.dismissed) {
_playPauseAnimation.reverse();
}
}
}