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fluffychat/lib/pages/chat/sticker_picker_dialog.dart

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Dart
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import 'package:flutter/material.dart';
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import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:matrix/matrix.dart';
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import '../../widgets/avatar.dart';
import '../../widgets/default_app_bar_search_field.dart';
import 'events/image_bubble.dart';
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class StickerPickerDialog extends StatefulWidget {
final Room room;
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const StickerPickerDialog({required this.room, Key? key}) : super(key: key);
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@override
StickerPickerDialogState createState() => StickerPickerDialogState();
}
class StickerPickerDialogState extends State<StickerPickerDialog> {
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String? searchFilter;
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@override
Widget build(BuildContext context) {
final stickerPacks = widget.room.getImagePacks(ImagePackUsage.sticker);
final packSlugs = stickerPacks.keys.toList();
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// ignore: prefer_function_declarations_over_variables
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final _packBuilder = (BuildContext context, int packIndex) {
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final pack = stickerPacks[packSlugs[packIndex]]!;
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final filteredImagePackImageEntried = pack.images.entries.toList();
if (searchFilter?.isNotEmpty ?? false) {
filteredImagePackImageEntried.removeWhere((e) =>
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!(e.key.toLowerCase().contains(searchFilter!.toLowerCase()) ||
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(e.value.body
?.toLowerCase()
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.contains(searchFilter!.toLowerCase()) ??
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false)));
}
final imageKeys =
filteredImagePackImageEntried.map((e) => e.key).toList();
if (imageKeys.isEmpty) {
return Container();
}
final packName = pack.pack.displayName ?? packSlugs[packIndex];
return Column(
children: <Widget>[
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if (packIndex != 0) const SizedBox(height: 20),
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if (packName != 'user')
ListTile(
leading: Avatar(
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mxContent: pack.pack.avatarUrl,
name: packName,
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client: widget.room.client,
),
title: Text(packName),
),
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const SizedBox(height: 6),
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GridView.builder(
itemCount: imageKeys.length,
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gridDelegate: const SliverGridDelegateWithMaxCrossAxisExtent(
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maxCrossAxisExtent: 100),
shrinkWrap: true,
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physics: const NeverScrollableScrollPhysics(),
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itemBuilder: (BuildContext context, int imageIndex) {
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final image = pack.images[imageKeys[imageIndex]]!;
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final fakeEvent = Event(
type: EventTypes.Sticker,
content: {
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'url': image.url.toString(),
'info': image.info,
},
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originServerTs: DateTime.now(),
room: widget.room,
eventId: 'fake_event',
senderId: widget.room.client.userID!,
);
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return InkWell(
key: ValueKey(image.url.toString()),
onTap: () {
// copy the image
final imageCopy =
ImagePackImageContent.fromJson(image.toJson().copy());
// set the body, if it doesn't exist, to the key
imageCopy.body ??= imageKeys[imageIndex];
Navigator.of(context, rootNavigator: false)
.pop<ImagePackImageContent>(imageCopy);
},
child: AbsorbPointer(
absorbing: true,
child: ImageBubble(
fakeEvent,
tapToView: false,
fit: BoxFit.contain,
width: 100,
height: 100,
),
),
);
},
),
],
);
};
return Scaffold(
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body: SizedBox(
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width: double.maxFinite,
child: CustomScrollView(
slivers: <Widget>[
SliverAppBar(
floating: true,
pinned: true,
automaticallyImplyLeading: false,
titleSpacing: 0,
backgroundColor: Theme.of(context).dialogBackgroundColor,
leading: IconButton(
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icon: const Icon(Icons.close),
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onPressed: Navigator.of(context, rootNavigator: false).pop,
),
title: DefaultAppBarSearchField(
autofocus: false,
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hintText: L10n.of(context)!.search,
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suffix: const Icon(Icons.search_outlined),
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onChanged: (s) => setState(() => searchFilter = s),
),
),
SliverList(
delegate: SliverChildBuilderDelegate(
_packBuilder,
childCount: packSlugs.length,
)),
],
),
),
);
}
}