437 lines
12 KiB
Dart
437 lines
12 KiB
Dart
import 'dart:async';
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import 'dart:collection';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:provider/provider.dart';
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import 'package:visibility_detector/visibility_detector.dart';
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import 'package:window_manager/window_manager.dart';
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import '../../common.dart';
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import '../../models/peer_model.dart';
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import '../../models/platform_model.dart';
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import 'peer_card.dart';
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typedef PeerFilter = bool Function(Peer peer);
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typedef PeerCardBuilder = Widget Function(Peer peer);
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class PeerSortType {
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static const String remoteId = 'Remote ID';
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static const String remoteHost = 'Remote Host';
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static const String username = 'Username';
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// static const String status = 'Status';
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static List<String> values = [
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PeerSortType.remoteId,
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PeerSortType.remoteHost,
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PeerSortType.username,
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// PeerSortType.status
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];
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}
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class LoadEvent {
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static const String recent = 'load_recent_peers';
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static const String favorite = 'load_fav_peers';
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static const String lan = 'load_lan_peers';
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static const String addressBook = 'load_address_book_peers';
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}
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/// for peer search text, global obs value
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final peerSearchText = "".obs;
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/// for peer sort, global obs value
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final peerSort = bind.getLocalFlutterConfig(k: 'peer-sorting').obs;
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// list for listener
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final obslist = [peerSearchText, peerSort].obs;
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final peerSearchTextController =
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TextEditingController(text: peerSearchText.value);
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class _PeersView extends StatefulWidget {
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final Peers peers;
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final PeerFilter? peerFilter;
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final PeerCardBuilder peerCardBuilder;
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const _PeersView(
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{required this.peers,
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required this.peerCardBuilder,
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this.peerFilter,
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Key? key})
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: super(key: key);
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@override
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_PeersViewState createState() => _PeersViewState();
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}
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/// State for the peer widget.
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class _PeersViewState extends State<_PeersView> with WindowListener {
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static const int _maxQueryCount = 3;
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final HashMap<String, String> _emptyMessages = HashMap.from({
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LoadEvent.recent: 'empty_recent_tip',
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LoadEvent.favorite: 'empty_favorite_tip',
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LoadEvent.lan: 'empty_lan_tip',
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LoadEvent.addressBook: 'empty_address_book_tip',
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});
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final space = isDesktop ? 12.0 : 8.0;
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final _curPeers = <String>{};
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var _lastChangeTime = DateTime.now();
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var _lastQueryPeers = <String>{};
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var _lastQueryTime = DateTime.now().subtract(const Duration(hours: 1));
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var _queryCount = 0;
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var _loaded = false;
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var _exit = false;
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late final mobileWidth = () {
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const minWidth = 320.0;
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final windowWidth = MediaQuery.of(context).size.width;
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var width = windowWidth - 2 * space;
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if (windowWidth > minWidth + 2 * space) {
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final n = (windowWidth / (minWidth + 2 * space)).floor();
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width = windowWidth / n - 2 * space;
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}
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return width;
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}();
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_PeersViewState() {
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_startCheckOnlines();
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}
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@override
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void initState() {
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windowManager.addListener(this);
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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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windowManager.removeListener(this);
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_exit = true;
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super.dispose();
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}
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@override
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void onWindowFocus() {
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_queryCount = 0;
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}
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@override
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void onWindowMinimize() {
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_queryCount = _maxQueryCount;
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}
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@override
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Widget build(BuildContext context) {
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return ChangeNotifierProvider<Peers>(
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create: (context) => widget.peers,
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child: Consumer<Peers>(
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builder: (context, peers, child) => peers.peers.isEmpty && _loaded
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? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.sentiment_very_dissatisfied_rounded,
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color: Theme.of(context).tabBarTheme.labelColor,
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size: 40,
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).paddingOnly(bottom: 10),
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Text(
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translate(
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_emptyMessages[widget.peers.loadEvent] ?? 'Empty',
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),
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textAlign: TextAlign.center,
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style: TextStyle(
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color: Theme.of(context).tabBarTheme.labelColor,
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),
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),
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],
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),
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)
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: _buildPeersView(peers),
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),
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);
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}
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onVisibilityChanged(VisibilityInfo info) {
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final peerId = _peerId((info.key as ValueKey).value);
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if (info.visibleFraction > 0.00001) {
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_curPeers.add(peerId);
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} else {
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_curPeers.remove(peerId);
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}
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_lastChangeTime = DateTime.now();
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}
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String _cardId(String id) => widget.peers.name + id;
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String _peerId(String cardId) => cardId.replaceAll(widget.peers.name, '');
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Widget _buildPeersView(Peers peers) {
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_loaded = true;
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final body = ObxValue<RxList>((filters) {
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return FutureBuilder<List<Peer>>(
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builder: (context, snapshot) {
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if (snapshot.hasData) {
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final peers = snapshot.data!;
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final cards = <Widget>[];
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for (final peer in peers) {
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final visibilityChild = VisibilityDetector(
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key: ValueKey(_cardId(peer.id)),
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onVisibilityChanged: onVisibilityChanged,
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child: widget.peerCardBuilder(peer),
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);
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cards.add(isDesktop
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? Obx(
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() => SizedBox(
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width: 220,
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height:
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peerCardUiType.value == PeerUiType.grid ? 140 : 42,
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child: visibilityChild,
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),
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)
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: SizedBox(width: mobileWidth, child: visibilityChild));
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}
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return Wrap(spacing: space, runSpacing: space, children: cards);
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} else {
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return const Center(
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child: CircularProgressIndicator(),
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);
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}
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},
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future: matchPeers(filters[0].value, filters[1].value, peers.peers),
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);
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}, obslist);
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return body;
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}
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// ignore: todo
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// TODO: variables walk through async tasks?
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void _startCheckOnlines() {
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final queryInterval = const Duration(seconds: 20);
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() async {
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while (!_exit) {
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final now = DateTime.now();
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if (!setEquals(_curPeers, _lastQueryPeers)) {
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if (now.difference(_lastChangeTime) > const Duration(seconds: 1)) {
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if (_curPeers.isNotEmpty) {
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platformFFI.ffiBind
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.queryOnlines(ids: _curPeers.toList(growable: false));
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_lastQueryPeers = {..._curPeers};
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_lastQueryTime = DateTime.now().subtract(queryInterval);
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_queryCount = 0;
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}
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}
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} else {
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if (_queryCount < _maxQueryCount) {
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if (now.difference(_lastQueryTime) >= queryInterval) {
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if (_curPeers.isNotEmpty) {
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platformFFI.ffiBind
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.queryOnlines(ids: _curPeers.toList(growable: false));
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_lastQueryTime = DateTime.now();
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_queryCount += 1;
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}
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}
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}
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}
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await Future.delayed(const Duration(milliseconds: 300));
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}
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}();
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}
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Future<List<Peer>>? matchPeers(
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String searchText, String sortedBy, List<Peer> peers) async {
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if (widget.peerFilter != null) {
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peers = peers.where((peer) => widget.peerFilter!(peer)).toList();
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}
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// fallback to id sorting
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if (!PeerSortType.values.contains(sortedBy)) {
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sortedBy = PeerSortType.remoteId;
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bind.setLocalFlutterConfig(
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k: "peer-sorting",
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v: sortedBy,
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);
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}
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if (widget.peers.loadEvent != LoadEvent.recent) {
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switch (sortedBy) {
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case PeerSortType.remoteId:
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peers.sort((p1, p2) => p1.getId().compareTo(p2.getId()));
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break;
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case PeerSortType.remoteHost:
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peers.sort((p1, p2) =>
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p1.hostname.toLowerCase().compareTo(p2.hostname.toLowerCase()));
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break;
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case PeerSortType.username:
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peers.sort((p1, p2) =>
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p1.username.toLowerCase().compareTo(p2.username.toLowerCase()));
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break;
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// case PeerSortType.status:
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// peers.sort((p1, p2) => p1.online ? -1 : 1);
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// break;
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}
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}
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searchText = searchText.trim();
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if (searchText.isEmpty) {
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return peers;
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}
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searchText = searchText.toLowerCase();
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final matches =
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await Future.wait(peers.map((peer) => matchPeer(searchText, peer)));
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final filteredList = List<Peer>.empty(growable: true);
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for (var i = 0; i < peers.length; i++) {
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if (matches[i]) {
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filteredList.add(peers[i]);
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}
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}
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return filteredList;
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}
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}
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abstract class BasePeersView extends StatelessWidget {
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final String name;
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final String loadEvent;
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final PeerFilter? peerFilter;
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final PeerCardBuilder peerCardBuilder;
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final List<Peer> initPeers;
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const BasePeersView({
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Key? key,
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required this.name,
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required this.loadEvent,
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this.peerFilter,
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required this.peerCardBuilder,
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required this.initPeers,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return _PeersView(
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peers: Peers(name: name, loadEvent: loadEvent, peers: initPeers),
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peerFilter: peerFilter,
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peerCardBuilder: peerCardBuilder);
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}
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}
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class RecentPeersView extends BasePeersView {
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RecentPeersView(
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{Key? key, EdgeInsets? menuPadding, ScrollController? scrollController})
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: super(
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key: key,
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name: 'recent peer',
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loadEvent: LoadEvent.recent,
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peerCardBuilder: (Peer peer) => RecentPeerCard(
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peer: peer,
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menuPadding: menuPadding,
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),
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initPeers: [],
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);
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@override
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Widget build(BuildContext context) {
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final widget = super.build(context);
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bind.mainLoadRecentPeers();
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return widget;
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}
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}
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class FavoritePeersView extends BasePeersView {
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FavoritePeersView(
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{Key? key, EdgeInsets? menuPadding, ScrollController? scrollController})
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: super(
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key: key,
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name: 'favorite peer',
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loadEvent: LoadEvent.favorite,
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peerCardBuilder: (Peer peer) => FavoritePeerCard(
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peer: peer,
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menuPadding: menuPadding,
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),
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initPeers: [],
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);
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@override
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Widget build(BuildContext context) {
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final widget = super.build(context);
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bind.mainLoadFavPeers();
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return widget;
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}
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}
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class DiscoveredPeersView extends BasePeersView {
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DiscoveredPeersView(
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{Key? key, EdgeInsets? menuPadding, ScrollController? scrollController})
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: super(
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key: key,
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name: 'discovered peer',
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loadEvent: LoadEvent.lan,
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peerCardBuilder: (Peer peer) => DiscoveredPeerCard(
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peer: peer,
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menuPadding: menuPadding,
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),
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initPeers: [],
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);
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@override
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Widget build(BuildContext context) {
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final widget = super.build(context);
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bind.mainLoadLanPeers();
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return widget;
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}
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}
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class AddressBookPeersView extends BasePeersView {
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AddressBookPeersView(
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{Key? key,
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EdgeInsets? menuPadding,
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ScrollController? scrollController,
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required List<Peer> initPeers})
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: super(
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key: key,
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name: 'address book peer',
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loadEvent: LoadEvent.addressBook,
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peerFilter: (Peer peer) =>
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_hitTag(gFFI.abModel.selectedTags, peer.tags),
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peerCardBuilder: (Peer peer) => AddressBookPeerCard(
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peer: peer,
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menuPadding: menuPadding,
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),
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initPeers: initPeers,
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);
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static bool _hitTag(List<dynamic> selectedTags, List<dynamic> idents) {
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if (selectedTags.isEmpty) {
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return true;
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}
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if (idents.isEmpty) {
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return false;
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}
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for (final tag in selectedTags) {
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if (!idents.contains(tag)) {
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return false;
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}
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}
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return true;
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}
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}
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class MyGroupPeerView extends BasePeersView {
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MyGroupPeerView(
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{Key? key,
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EdgeInsets? menuPadding,
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ScrollController? scrollController,
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required List<Peer> initPeers})
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: super(
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key: key,
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name: 'my group peer',
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loadEvent: 'load_my_group_peers',
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peerCardBuilder: (Peer peer) => MyGroupPeerCard(
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peer: peer,
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menuPadding: menuPadding,
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),
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initPeers: initPeers,
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);
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}
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