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fluffychat/lib/pages/chat/chat_view.dart

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import 'package:flutter/material.dart';
import 'package:desktop_drop/desktop_drop.dart';
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import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:future_loading_dialog/future_loading_dialog.dart';
import 'package:matrix/matrix.dart';
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import 'package:scroll_to_index/scroll_to_index.dart';
import 'package:swipe_to_action/swipe_to_action.dart';
import 'package:vrouter/vrouter.dart';
import 'package:fluffychat/config/app_config.dart';
import 'package:fluffychat/config/themes.dart';
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import 'package:fluffychat/pages/chat/chat.dart';
import 'package:fluffychat/pages/chat/chat_app_bar_title.dart';
import 'package:fluffychat/pages/chat/reactions_picker.dart';
import 'package:fluffychat/pages/chat/reply_display.dart';
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import 'package:fluffychat/pages/chat/seen_by_row.dart';
import 'package:fluffychat/pages/chat/tombstone_display.dart';
import 'package:fluffychat/pages/chat/typing_indicators.dart';
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import 'package:fluffychat/pages/user_bottom_sheet/user_bottom_sheet.dart';
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import 'package:fluffychat/utils/platform_infos.dart';
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import 'package:fluffychat/utils/sentry_controller.dart';
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import 'package:fluffychat/widgets/chat_settings_popup_menu.dart';
import 'package:fluffychat/widgets/connection_status_header.dart';
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import 'package:fluffychat/widgets/matrix.dart';
import 'package:fluffychat/widgets/unread_badge_back_button.dart';
import '../../utils/stream_extension.dart';
import 'chat_emoji_picker.dart';
import 'chat_input_row.dart';
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import 'events/message.dart';
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enum _EventContextAction { info, report }
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class ChatView extends StatelessWidget {
final ChatController controller;
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const ChatView(this.controller, {Key key}) : super(key: key);
List<Widget> _appBarActions(BuildContext context) => controller.selectMode
? [
if (controller.canEditSelectedEvents)
IconButton(
icon: const Icon(Icons.edit_outlined),
tooltip: L10n.of(context).edit,
onPressed: controller.editSelectedEventAction,
),
IconButton(
icon: const Icon(Icons.copy_outlined),
tooltip: L10n.of(context).copy,
onPressed: controller.copyEventsAction,
),
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if (controller.canSaveSelectedEvent)
IconButton(
icon: Icon(Icons.adaptive.share),
tooltip: L10n.of(context).share,
onPressed: controller.saveSelectedEvent,
),
if (controller.canRedactSelectedEvents)
IconButton(
icon: const Icon(Icons.delete_outlined),
tooltip: L10n.of(context).redactMessage,
onPressed: controller.redactEventsAction,
),
if (controller.selectedEvents.length == 1)
PopupMenuButton<_EventContextAction>(
onSelected: (action) {
switch (action) {
case _EventContextAction.info:
controller.showEventInfo();
controller.clearSelectedEvents();
break;
case _EventContextAction.report:
controller.reportEventAction();
break;
}
},
itemBuilder: (context) => [
PopupMenuItem(
value: _EventContextAction.info,
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(Icons.info_outlined),
const SizedBox(width: 12),
Text(L10n.of(context).messageInfo),
],
),
),
PopupMenuItem(
value: _EventContextAction.report,
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
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const Icon(
Icons.shield_outlined,
color: Colors.red,
),
const SizedBox(width: 12),
Text(L10n.of(context).reportMessage),
],
),
),
],
),
]
: [
ChatSettingsPopupMenu(controller.room, !controller.room.isDirectChat),
];
@override
Widget build(BuildContext context) {
controller.matrix ??= Matrix.of(context);
final client = controller.matrix.client;
controller.sendingClient ??= client;
controller.room = controller.sendingClient.getRoomById(controller.roomId);
if (controller.room == null) {
return Scaffold(
appBar: AppBar(
title: Text(L10n.of(context).oopsSomethingWentWrong),
),
body: Center(
child: Text(L10n.of(context).youAreNoLongerParticipatingInThisChat),
),
);
}
if (controller.room.membership == Membership.invite) {
showFutureLoadingDialog(
context: context, future: () => controller.room.join());
}
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final bottomSheetPadding = FluffyThemes.isColumnMode(context) ? 16.0 : 8.0;
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final horizontalPadding = FluffyThemes.isColumnMode(context) ? 8.0 : 0.0;
return VWidgetGuard(
onSystemPop: (redirector) async {
if (controller.selectedEvents.isNotEmpty) {
controller.clearSelectedEvents();
redirector.stopRedirection();
}
},
child: StreamBuilder(
stream: controller.room.onUpdate.stream
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.rateLimit(const Duration(milliseconds: 250)),
builder: (context, snapshot) => Scaffold(
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appBar: AppBar(
actionsIconTheme: IconThemeData(
color: controller.selectedEvents.isEmpty
? null
: Theme.of(context).colorScheme.primary,
),
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leading: controller.selectMode
? IconButton(
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icon: const Icon(Icons.close),
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onPressed: controller.clearSelectedEvents,
tooltip: L10n.of(context).close,
color: Theme.of(context).colorScheme.primary,
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)
: UnreadBadgeBackButton(roomId: controller.roomId),
titleSpacing: 0,
title: ChatAppBarTitle(controller),
actions: _appBarActions(context),
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),
floatingActionButton: controller.showScrollDownButton &&
controller.selectedEvents.isEmpty
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? Padding(
padding: const EdgeInsets.only(bottom: 56.0),
child: FloatingActionButton(
onPressed: controller.scrollDown,
foregroundColor:
Theme.of(context).textTheme.bodyText2.color,
backgroundColor: Theme.of(context).scaffoldBackgroundColor,
mini: true,
child: Icon(Icons.arrow_downward_outlined,
color: Theme.of(context).primaryColor),
),
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)
: null,
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backgroundColor: Theme.of(context).colorScheme.surface,
body: DropTarget(
onDragDone: controller.onDragDone,
onDragEntered: controller.onDragEntered,
onDragExited: controller.onDragExited,
child: Stack(
children: <Widget>[
if (Matrix.of(context).wallpaper != null)
Image.file(
Matrix.of(context).wallpaper,
width: double.infinity,
height: double.infinity,
fit: BoxFit.cover,
),
SafeArea(
child: Column(
children: <Widget>[
TombstoneDisplay(controller),
Expanded(
child: GestureDetector(
onTap: controller.clearSingleSelectedEvent,
child: FutureBuilder<bool>(
future: controller.getTimeline(),
builder: (BuildContext context, snapshot) {
if (snapshot.hasError) {
SentryController.captureException(
snapshot.error,
StackTrace.current,
);
}
if (controller.timeline == null) {
return const Center(
child: CircularProgressIndicator.adaptive(
strokeWidth: 2),
);
}
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// create a map of eventId --> index to greatly improve performance of
// ListView's findChildIndexCallback
final thisEventsKeyMap = <String, int>{};
for (var i = 0;
i < controller.filteredEvents.length;
i++) {
thisEventsKeyMap[
controller.filteredEvents[i].eventId] = i;
}
return ListView.custom(
padding: EdgeInsets.only(
top: 16,
bottom: 4,
left: horizontalPadding,
right: horizontalPadding,
),
reverse: true,
controller: controller.scrollController,
keyboardDismissBehavior: PlatformInfos.isIOS
? ScrollViewKeyboardDismissBehavior.onDrag
: ScrollViewKeyboardDismissBehavior
.manual,
childrenDelegate: SliverChildBuilderDelegate(
(BuildContext context, int i) {
return i ==
controller.filteredEvents.length +
1
? controller
.timeline.isRequestingHistory
? const Center(
child:
CircularProgressIndicator
.adaptive(
strokeWidth: 2),
)
: controller.canLoadMore
? Center(
child: OutlinedButton(
style: OutlinedButton
.styleFrom(
backgroundColor: Theme
.of(context)
.scaffoldBackgroundColor,
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),
onPressed: controller
.requestHistory,
child: Text(
L10n.of(context)
.loadMore),
),
)
: Container()
: i == 0
? Column(
mainAxisSize:
MainAxisSize.min,
children: [
SeenByRow(controller),
TypingIndicators(
controller),
],
)
: AutoScrollTag(
key: ValueKey(controller
.filteredEvents[i - 1]
.eventId),
index: i - 1,
controller: controller
.scrollController,
child: Swipeable(
key: ValueKey(controller
.filteredEvents[i - 1]
.eventId),
background: const Padding(
padding:
EdgeInsets.symmetric(
horizontal: 12.0),
child: Center(
child: Icon(Icons
.reply_outlined),
),
),
direction: SwipeDirection
.endToStart,
onSwipe: (direction) =>
controller.replyAction(
replyTo: controller
.filteredEvents[
i - 1]),
child: Message(
controller.filteredEvents[
i - 1],
onInfoTab: controller
.showEventInfo,
onAvatarTab: (Event event) =>
showModalBottomSheet(
context: context,
builder: (c) =>
UserBottomSheet(
user: event
.sender,
outerContext:
context,
onMention: () => controller
.sendController
.text +=
'${event.sender.mention} ',
),
),
unfold:
controller.unfold,
onSelect: controller
.onSelectMessage,
scrollToEventId:
(String eventId) =>
controller
.scrollToEventId(
eventId),
longPressSelect:
controller
.selectedEvents
.isEmpty,
selected: controller
.selectedEvents
.any((e) => e.eventId == controller.filteredEvents[i - 1].eventId),
timeline: controller.timeline,
nextEvent: i < controller.filteredEvents.length ? controller.filteredEvents[i] : null),
),
);
},
childCount:
controller.filteredEvents.length + 2,
findChildIndexCallback: (key) =>
controller.findChildIndexCallback(
key, thisEventsKeyMap),
),
);
},
)),
),
if (controller.room.canSendDefaultMessages &&
controller.room.membership == Membership.join)
Container(
margin: EdgeInsets.only(
bottom: bottomSheetPadding,
left: bottomSheetPadding,
right: bottomSheetPadding,
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),
constraints: const BoxConstraints(
maxWidth: FluffyThemes.columnWidth * 2.5),
alignment: Alignment.center,
child: Material(
borderRadius: const BorderRadius.only(
bottomLeft:
Radius.circular(AppConfig.borderRadius),
bottomRight:
Radius.circular(AppConfig.borderRadius),
),
elevation: 6,
shadowColor: Theme.of(context)
.secondaryHeaderColor
.withAlpha(100),
clipBehavior: Clip.hardEdge,
color:
Theme.of(context).appBarTheme.backgroundColor,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
const ConnectionStatusHeader(),
ReactionsPicker(controller),
ReplyDisplay(controller),
ChatInputRow(controller),
ChatEmojiPicker(controller),
],
),
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),
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),
],
),
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),
if (controller.dragging)
Container(
color: Theme.of(context)
.scaffoldBackgroundColor
.withOpacity(0.9),
alignment: Alignment.center,
child: const Icon(
Icons.upload_outlined,
size: 100,
),
),
],
),
),
),
),
);
}
}