91 lines
2.9 KiB
Dart
91 lines
2.9 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
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import 'package:provider/provider.dart';
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import 'package:simplecloudnotifier/api/api_client.dart';
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import 'package:simplecloudnotifier/models/channel.dart';
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import 'package:simplecloudnotifier/models/message.dart';
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import 'package:simplecloudnotifier/pages/message_view/message_view.dart';
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import 'package:simplecloudnotifier/state/application_log.dart';
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import 'package:simplecloudnotifier/state/user_account.dart';
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import 'package:simplecloudnotifier/pages/message_list/message_list_item.dart';
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class MessageListPage extends StatefulWidget {
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const MessageListPage({super.key});
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@override
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State<MessageListPage> createState() => _MessageListPageState();
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}
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class _MessageListPageState extends State<MessageListPage> {
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static const _pageSize = 128;
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final PagingController<String, Message> _pagingController = PagingController(firstPageKey: '@start');
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Map<String, Channel>? _channels = null;
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@override
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void initState() {
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_pagingController.addPageRequestListener((pageKey) {
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_fetchPage(pageKey);
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});
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super.initState();
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}
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@override
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void dispose() {
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_pagingController.dispose();
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super.dispose();
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}
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Future<void> _fetchPage(String thisPageToken) async {
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final acc = Provider.of<UserAccount>(context, listen: false);
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if (acc.auth == null) {
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_pagingController.error = 'Not logged in';
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return;
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}
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try {
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if (_channels == null) {
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final channels = await APIClient.getChannelList(acc.auth!, ChannelSelector.allAny);
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_channels = <String, Channel>{for (var v in channels) v.channel.channelID: v.channel};
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}
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final (npt, newItems) = await APIClient.getMessageList(acc.auth!, thisPageToken, pageSize: _pageSize);
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if (npt == '@end') {
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_pagingController.appendLastPage(newItems);
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} else {
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_pagingController.appendPage(newItems, npt);
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}
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} catch (exc, trace) {
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_pagingController.error = exc.toString();
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ApplicationLog.error('Failed to list messages: ' + exc.toString(), trace: trace);
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}
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}
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: EdgeInsets.fromLTRB(8, 4, 8, 4),
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child: RefreshIndicator(
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onRefresh: () => Future.sync(
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() => _pagingController.refresh(),
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),
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child: PagedListView<String, Message>(
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pagingController: _pagingController,
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builderDelegate: PagedChildBuilderDelegate<Message>(
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itemBuilder: (context, item, index) => MessageListItem(
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message: item,
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allChannels: _channels ?? {},
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onPressed: () {
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Navigator.push(context, MaterialPageRoute<MessageViewPage>(builder: (context) => MessageViewPage(message: item)));
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},
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),
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),
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),
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),
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);
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}
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}
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