fluffychat/lib/pages/chat_list/spaces_bottom_bar.dart

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import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
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import 'package:salomon_bottom_bar/salomon_bottom_bar.dart';
import 'package:fluffychat/config/app_config.dart';
import 'package:fluffychat/pages/chat_list/chat_list.dart';
import 'package:fluffychat/pages/chat_list/spaces_drawer.dart';
import 'package:fluffychat/pages/chat_list/spaces_entry.dart';
import 'package:fluffychat/widgets/avatar.dart';
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import 'package:fluffychat/widgets/matrix.dart';
const kSpacesBottomBarHeight = 56.0;
final GlobalKey _globalKey = GlobalKey();
class SpacesBottomBar extends StatelessWidget {
final ChatListController controller;
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const SpacesBottomBar(this.controller, {Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
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return Material(
color: Theme.of(context).navigationBarTheme.backgroundColor,
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elevation: 6,
borderRadius: const BorderRadius.vertical(
top: Radius.circular(AppConfig.borderRadius)),
clipBehavior: Clip.hardEdge,
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child: SafeArea(
child: StreamBuilder<Object>(
stream: Matrix.of(context).client.onSync.stream.where((sync) =>
(sync.rooms?.join?.values.any((r) =>
r.state?.any((s) => s.type.startsWith('m.space')) ??
false) ??
false) ||
(sync.rooms?.leave?.isNotEmpty ?? false)),
builder: (context, snapshot) {
return SingleChildScrollView(
controller: controller.snappingSheetScrollContentController,
child: AnimatedBuilder(
child: _SpacesBottomNavigation(
key: _globalKey, controller: controller),
builder: (context, child) {
if (controller.snappingSheetContainerSize == null) {
return child!;
}
final rawPosition =
controller.snappingSheetController.isAttached
? controller.snappingSheetController.currentPosition
: 0;
final position = rawPosition /
controller.snappingSheetContainerSize!.maxHeight;
if (rawPosition <= kSpacesBottomBarHeight) {
return child!;
} else if (position >= 0.5) {
return SpacesDrawer(controller: controller);
} else {
final normalized = (rawPosition - kSpacesBottomBarHeight) /
(controller.snappingSheetContainerSize!.maxHeight -
kSpacesBottomBarHeight) *
2;
var boxHeight = (1 - normalized) * kSpacesBottomBarHeight;
if (boxHeight < 0) boxHeight = 0;
return Column(
children: [
SizedBox(
height: boxHeight,
child: ClipRect(
clipBehavior: Clip.hardEdge,
child: Opacity(
opacity: 1 - normalized, child: child!)),
),
Opacity(
opacity: normalized,
child: SpacesDrawer(controller: controller),
),
],
);
}
},
animation: controller.snappingSheetController,
),
);
},
),
),
);
}
}
class _SpacesBottomNavigation extends StatelessWidget {
final ChatListController controller;
const _SpacesBottomNavigation({Key? key, required this.controller})
: super(key: key);
@override
Widget build(BuildContext context) {
final currentIndex = controller.spacesEntries.indexWhere((space) =>
controller.activeSpacesEntry.runtimeType == space.runtimeType &&
(controller.activeSpaceId == space.getSpace(context)?.id)) +
1;
return Container(
height: 56,
alignment: Alignment.center,
child: SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: SalomonBottomBar(
itemPadding: const EdgeInsets.all(8),
currentIndex: currentIndex,
onTap: (i) => i == 0
? controller.expandSpaces()
: controller.setActiveSpacesEntry(
context,
controller.spacesEntries[i - 1],
),
selectedItemColor: Theme.of(context).colorScheme.primary,
items: [
SalomonBottomBarItem(
icon: const Icon(Icons.keyboard_arrow_up),
title: Text(L10n.of(context)!.showSpaces),
),
...controller.spacesEntries
.map((space) => _buildSpacesEntryUI(context, space))
.toList(),
],
),
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),
);
}
SalomonBottomBarItem _buildSpacesEntryUI(
BuildContext context, SpacesEntry entry) {
final space = entry.getSpace(context);
if (space != null) {
return SalomonBottomBarItem(
icon: InkWell(
borderRadius: BorderRadius.circular(28),
onTap: () => controller.setActiveSpacesEntry(
context,
entry,
),
onLongPress: () => controller.editSpace(context, space.id),
child: Avatar(
mxContent: space.avatar,
name: space.displayname,
size: 24,
fontSize: 12,
),
),
title: Text(entry.getName(context)),
);
}
return SalomonBottomBarItem(
icon: entry.getIcon(false),
activeIcon: entry.getIcon(true),
title: Text(entry.getName(context)),
);
}
}