Solian/lib/widgets/chat/chat_event_list.dart
2024-09-03 23:07:20 +08:00

119 lines
3.8 KiB
Dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:solian/controllers/chat_events_controller.dart';
import 'package:solian/models/channel.dart';
import 'package:solian/models/event.dart';
import 'package:solian/providers/last_read.dart';
import 'package:solian/widgets/chat/chat_event.dart';
import 'package:solian/widgets/chat/chat_event_action.dart';
class ChatEventList extends StatelessWidget {
final String scope;
final Channel channel;
final ChatEventController chatController;
final Function(Event) onEdit;
final Function(Event) onReply;
const ChatEventList({
super.key,
this.scope = 'global',
required this.channel,
required this.chatController,
required this.onEdit,
required this.onReply,
});
bool _checkMessageMergeable(Event? a, Event? b) {
if (a == null || b == null) return false;
if (a.sender.account.id != b.sender.account.id) return false;
return a.createdAt.difference(b.createdAt).inMinutes <= 3;
}
@override
Widget build(BuildContext context) {
return CustomScrollView(
reverse: true,
slivers: [
Obx(() {
return SliverList.builder(
key: Key('chat-history#${channel.id}'),
itemCount: chatController.currentEvents.length,
itemBuilder: (context, index) {
Get.find<LastReadProvider>().messagesLastReadAt =
chatController.currentEvents[index].id;
bool isMerged = false, hasMerged = false;
if (index > 0) {
hasMerged = _checkMessageMergeable(
chatController.currentEvents[index - 1].data,
chatController.currentEvents[index].data,
);
}
if (index + 1 < chatController.currentEvents.length) {
isMerged = _checkMessageMergeable(
chatController.currentEvents[index].data,
chatController.currentEvents[index + 1].data,
);
}
final item = chatController.currentEvents[index].data;
return InkWell(
child: ChatEvent(
key: Key('m${item.uuid}'),
item: item,
isMerged: isMerged,
chatController: chatController,
).paddingOnly(
top: !isMerged ? 8 : 0,
bottom: !hasMerged ? 8 : 0,
),
onLongPress: () {
showModalBottomSheet(
useRootNavigator: true,
context: context,
builder: (context) => ChatEventAction(
channel: channel,
realm: channel.realm,
item: item,
onEdit: () {
onEdit(item);
},
onReply: () {
onReply(item);
},
),
);
},
);
},
);
}),
Obx(() {
final amount =
chatController.totalEvents - chatController.currentEvents.length;
if (amount.value <= 0 || chatController.isLoading.isTrue) {
return const SliverToBoxAdapter(child: SizedBox());
}
return SliverToBoxAdapter(
child: ListTile(
tileColor: Theme.of(context).colorScheme.surfaceContainerLow,
leading: const Icon(Icons.sync_disabled),
title: Text('messageUnSync'.tr),
subtitle: Text('messageUnSyncCaption'.trParams({
'count': amount.string,
})),
onTap: () {
chatController.loadEvents(channel, scope);
},
),
);
}),
],
);
}
}