Line data Source code
1 : import 'package:cwtch/models/appstate.dart';
2 : import 'package:cwtch/models/contact.dart';
3 : import 'package:cwtch/models/message.dart';
4 : import 'package:cwtch/models/messagecache.dart';
5 : import 'package:cwtch/models/profile.dart';
6 : import 'package:cwtch/widgets/membersdrawer.dart';
7 : import 'package:cwtch/widgets/messageloadingbubble.dart';
8 : import 'package:flutter/material.dart';
9 : import 'package:provider/provider.dart';
10 : import 'package:scrollable_positioned_list/scrollable_positioned_list.dart';
11 : import 'package:cwtch/l10n/app_localizations.dart';
12 : import '../main.dart';
13 : import '../settings.dart';
14 :
15 : class MessageList extends StatefulWidget {
16 : ItemPositionsListener scrollListener;
17 0 : MessageList(this.scrollListener);
18 :
19 0 : @override
20 0 : _MessageListState createState() => _MessageListState();
21 : }
22 :
23 : class _MessageListState extends State<MessageList> {
24 0 : @override
25 : Widget build(BuildContext outerContext) {
26 : // On Android we can have unsynced messages at the front of the index from when the UI was asleep, if there are some, kick off sync of those first
27 0 : if (Provider.of<ContactInfoState>(context).messageCache.indexUnsynced != 0) {
28 0 : var conversationId = Provider.of<AppState>(outerContext, listen: false).selectedConversation!;
29 0 : MessageCache? cache = Provider.of<ProfileInfoState>(outerContext, listen: false).contactList.getContact(conversationId)?.messageCache;
30 0 : ByIndex(0).loadUnsynced(Provider.of<FlwtchState>(context, listen: false).cwtch, Provider.of<AppState>(outerContext, listen: false).selectedProfile!, conversationId, cache!);
31 : }
32 0 : if (Provider.of<ContactInfoState>(outerContext, listen: false).everFetched == false) {
33 0 : messageHandler(
34 : outerContext,
35 0 : Provider.of<ProfileInfoState>(outerContext, listen: false).onion,
36 0 : Provider.of<ContactInfoState>(outerContext, listen: false).identifier,
37 0 : ByIndex(Provider.of<ContactInfoState>(outerContext, listen: false).uiLoadedMessages),
38 : );
39 0 : Provider.of<ContactInfoState>(outerContext, listen: false).everFetched = true;
40 : }
41 0 : bool isP2P = !Provider.of<ContactInfoState>(context).isGroup;
42 0 : bool isGroupAndSyncing = Provider.of<ContactInfoState>(context).isGroup == true && Provider.of<ContactInfoState>(context).status == "Authenticated";
43 :
44 0 : bool preserveHistoryByDefault = Provider.of<Settings>(context, listen: false).preserveHistoryByDefault;
45 0 : bool showEphemeralWarning = (isP2P && (!preserveHistoryByDefault && Provider.of<ContactInfoState>(context).savePeerHistory != "SaveHistory"));
46 0 : bool showOfflineWarning = Provider.of<ContactInfoState>(context).isOnline() == false;
47 : bool showSyncing = isGroupAndSyncing;
48 : bool showMessageWarning = showEphemeralWarning || showOfflineWarning || showSyncing;
49 :
50 : // if it's been more than 2 minutes since we last clicked the button let users click the button again
51 : // OR if users have never clicked the button AND they appear offline, then they can click the button
52 : // NOTE: all these listeners are false...this is not ideal, but if they were true we would end up rebuilding the message view every tick (which would kill performance)
53 : // any significant changes in state e.g. peer offline or button clicks will trigger a rebuild anyway
54 : bool canReconnect =
55 0 : DateTime.now().difference(Provider.of<ContactInfoState>(context, listen: false).lastRetryTime).abs() > Duration(seconds: 30) ||
56 0 : (Provider.of<ProfileInfoState>(context, listen: false).appearOffline &&
57 0 : (Provider.of<ContactInfoState>(context, listen: false).lastRetryTime == Provider.of<ContactInfoState>(context, listen: false).loaded));
58 :
59 0 : var reconnectButton = Padding(
60 0 : padding: EdgeInsets.all(2),
61 : child: canReconnect
62 0 : ? Tooltip(
63 0 : message: AppLocalizations.of(context)!.retryConnectionTooltip,
64 0 : child: ElevatedButton(
65 0 : style: ButtonStyle(padding: MaterialStateProperty.all(EdgeInsets.all(20))),
66 0 : child: Text(AppLocalizations.of(context)!.retryConnection),
67 0 : onPressed: () {
68 0 : if (Provider.of<ContactInfoState>(context, listen: false).isGroup) {
69 0 : Provider.of<FlwtchState>(
70 0 : context,
71 : listen: false,
72 0 : ).cwtch.AttemptReconnectionServer(Provider.of<ProfileInfoState>(context, listen: false).onion, Provider.of<ContactInfoState>(context, listen: false).server!);
73 : } else {
74 0 : Provider.of<FlwtchState>(
75 0 : context,
76 : listen: false,
77 0 : ).cwtch.AttemptReconnection(Provider.of<ProfileInfoState>(context, listen: false).onion, Provider.of<ContactInfoState>(context, listen: false).onion);
78 : }
79 0 : Provider.of<ContactInfoState>(context, listen: false).lastRetryTime = DateTime.now();
80 0 : Provider.of<ContactInfoState>(context, listen: false).contactEvents.add(ContactEvent("Actively Retried Connection"));
81 0 : setState(() {
82 : // force update of this view...otherwise the button won't be removed fast enough...
83 : });
84 : },
85 : ),
86 : )
87 0 : : CircularProgressIndicator(color: Provider.of<Settings>(context).theme.hilightElementColor),
88 : );
89 :
90 0 : return RepaintBoundary(
91 0 : child: Container(
92 0 : color: Provider.of<Settings>(context).theme.backgroundMainColor,
93 0 : child: Column(
94 0 : children: [
95 0 : Visibility(
96 : visible: showMessageWarning,
97 0 : child: Container(
98 0 : padding: EdgeInsets.all(5.0),
99 0 : color: Provider.of<Settings>(context).theme.backgroundHilightElementColor,
100 0 : child: DefaultTextStyle(
101 0 : style: TextStyle(color: Provider.of<Settings>(context).theme.hilightElementColor),
102 : child: showSyncing
103 0 : ? Text(AppLocalizations.of(context)!.serverNotSynced, textAlign: TextAlign.center)
104 : : showOfflineWarning
105 0 : ? Column(
106 : crossAxisAlignment: CrossAxisAlignment.center,
107 0 : children: [
108 0 : Text(
109 0 : Provider.of<ContactInfoState>(context).isGroup ? AppLocalizations.of(context)!.serverConnectivityDisconnected : AppLocalizations.of(context)!.peerOfflineMessage,
110 : textAlign: TextAlign.center,
111 : ),
112 : reconnectButton,
113 : ],
114 : )
115 : // Only show the ephemeral status for peer conversations, not for groups...
116 : : (showEphemeralWarning
117 0 : ? Text(AppLocalizations.of(context)!.chatHistoryDefault, textAlign: TextAlign.center)
118 : :
119 : // We are not allowed to put null here, so put an empty text widget
120 0 : Text("")),
121 : ),
122 : ),
123 : ),
124 0 : Expanded(
125 0 : child: Container(
126 : // Only show broken heart is the contact is offline...
127 0 : decoration: BoxDecoration(
128 0 : image: Provider.of<ContactInfoState>(outerContext).isOnline()
129 0 : ? (Provider.of<Settings>(context).themeImages && Provider.of<Settings>(context).theme.chatImage != null)
130 0 : ? DecorationImage(
131 : repeat: ImageRepeat.repeat,
132 0 : image: Provider.of<Settings>(context).theme.loadImage(Provider.of<Settings>(context).theme.chatImage, context: context),
133 0 : colorFilter: ColorFilter.mode(Provider.of<Settings>(context).theme.chatImageColor, BlendMode.srcIn),
134 : )
135 : : null
136 0 : : DecorationImage(
137 : fit: BoxFit.scaleDown,
138 : alignment: Alignment.center,
139 0 : image: AssetImage("assets/core/negative_heart_512px.png"),
140 0 : colorFilter: ColorFilter.mode(Provider.of<Settings>(context).theme.hilightElementColor.withOpacity(0.15), BlendMode.srcIn),
141 : ),
142 : ),
143 : // Don't load messages for syncing server...
144 0 : child: Padding(padding: EdgeInsets.fromLTRB(0.0, 0.0, 0.0, 20.0), child: _buildPaneStructure(outerContext)),
145 : ),
146 : ),
147 : ],
148 : ),
149 : ),
150 : );
151 : }
152 :
153 0 : Widget _buildPaneStructure(BuildContext outerContext) {
154 0 : if (Provider.of<ContactInfoState>(context).membersDrawerOpen) {
155 0 : return Flex(
156 : direction: Axis.horizontal,
157 0 : children: <Widget>[
158 0 : Flexible(flex: 4, child: _theList(outerContext)),
159 0 : Flexible(flex: 1, child: MembersDrawer(outerContext)),
160 : ],
161 : );
162 : } else {
163 0 : return _theList(outerContext);
164 : }
165 : }
166 :
167 0 : Widget _theList(BuildContext outerContext) {
168 0 : var initi = Provider.of<AppState>(outerContext, listen: false).initialScrollIndex;
169 0 : return ScrollablePositionedList.builder(
170 0 : itemPositionsListener: widget.scrollListener,
171 0 : itemScrollController: Provider.of<ContactInfoState>(outerContext).messageScrollController,
172 0 : initialScrollIndex: initi > 4 ? initi - 4 : 0,
173 0 : itemCount: Provider.of<ContactInfoState>(outerContext).uiLoadedMessages + 1,
174 : reverse: true, // NOTE: There seems to be a bug in flutter that corrects the mouse wheel scroll, but not the drag direction...
175 : shrinkWrap: true,
176 0 : itemBuilder: (itemBuilderContext, index) {
177 0 : var profileOnion = Provider.of<ProfileInfoState>(itemBuilderContext, listen: false).onion;
178 0 : var contactHandle = Provider.of<ContactInfoState>(itemBuilderContext, listen: false).identifier;
179 : var messageIndex = index;
180 0 : var loadedMessages = Provider.of<ContactInfoState>(itemBuilderContext, listen: false).uiLoadedMessages;
181 0 : var endOfMessages = Provider.of<ContactInfoState>(itemBuilderContext, listen: false).totalMessages + 1;
182 0 : if (index == endOfMessages - 1) {
183 0 : return ListTile(title: Text(AppLocalizations.of(itemBuilderContext)!.messageHistoryEndOfHistory, textAlign: TextAlign.center), dense: true);
184 0 : } else if (index >= loadedMessages) {
185 0 : return ElevatedButton(
186 0 : child: Text(AppLocalizations.of(itemBuilderContext)!.messageHistoryLoadOlderMessages),
187 0 : key: Key("loadAdditionalMessages"),
188 0 : onPressed: () {
189 0 : messageHandler(itemBuilderContext, profileOnion, contactHandle, ByIndex(messageIndex));
190 : },
191 : );
192 : }
193 0 : return FutureBuilder(
194 0 : future: messageHandler(itemBuilderContext, profileOnion, contactHandle, ByIndex(messageIndex)),
195 0 : builder: (fbcontext, snapshot) {
196 0 : if (snapshot.hasData) {
197 0 : var message = snapshot.data as Message;
198 : // here we create an index key for the contact and assign it to the row. Indexes are unique so we can
199 : // reliably use this without running into duplicate keys...it isn't ideal as it means keys need to be re-built
200 : // when new messages are added...however it is better than the alternative of not having widget keys at all.
201 0 : var key = Provider.of<ContactInfoState>(itemBuilderContext, listen: false).getMessageKey(contactHandle, messageIndex);
202 0 : return message.getWidget(fbcontext, key, messageIndex);
203 : } else {
204 0 : return MessageLoadingBubble();
205 : }
206 : },
207 : );
208 : },
209 : );
210 : }
211 : }
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