Open conversations in their context

lib/ui/routes/main_route/main_route.dart

@@ -111,9 +111,15 @@ abstract class MainController extends State<MainRoute> {
   void openCurrentUserPage() => this.openUserPage(userID());
 
   /// Open a specific group page specified by its [groupID]
-  void openGroup(int groupID) => pushPage(PageInfo(
+  ///
+  /// [conversationID] is an optional parameter specifying a conversation
+  /// that should be opened instead of posts thread
+  void openGroup(int groupID, {int conversationID}) => pushPage(PageInfo(
       type: PageType.GROUP_PAGE,
-      child: GroupPageScreen(groupID: groupID),
+      child: GroupPageScreen(
+        groupID: groupID,
+        conversationID: conversationID,
+      ),
       id: groupID));
 
   /// Display the list of friends of current user
@@ -146,8 +152,17 @@ abstract class MainController extends State<MainRoute> {
       pushPage(PageInfo(
           child: w, hideNavBar: hideNavBar, canShowAsDialog: canShowAsDialog));
 
+  /// Open a conversation in its context (in group page for group conversations)
+  void openConversation(Conversation conv) {
+    if (conv.isGroupConversation)
+      openGroup(conv.groupID, conversationID: conv.id);
+    else
+      openConversationById(conv.id);
+  }
+
   /// Open a conversation
-  void openConversation(int convID, {fullScreen: false}) => pushPage(PageInfo(
+  void openConversationById(int convID, {fullScreen: false}) =>
+      pushPage(PageInfo(
         type: PageType.CONVERSATION_PAGE,
         id: convID,
         child: ConversationRoute(conversationID: convID),

lib/ui/routes/main_route/tablet_route.dart

@@ -90,12 +90,12 @@ class _TabletRouteState extends MainController {
   }
 
   @override
-  void openConversation(int convID, {fullScreen = false}) {
+  void openConversationById(int convID, {fullScreen = false}) {
     if (!fullScreen) {
       popUntilMainRoute();
       _conversationsKey.currentState.openConversations(convID);
     } else
-      super.openConversation(convID, fullScreen: fullScreen);
+      super.openConversationById(convID, fullScreen: fullScreen);
   }
 
   @override

lib/ui/screens/authorized_group_page_screen.dart

@@ -26,11 +26,13 @@ Color get _headerColor => Colors.blueAccent.shade700;
 
 class AuthorizedGroupPageScreen extends StatefulWidget {
   final AdvancedGroupInfo advancedGroupInfo;
+  final int conversationID;
   final Function() needRefresh;
 
   const AuthorizedGroupPageScreen({
     Key key,
     @required this.advancedGroupInfo,
+    @required this.conversationID,
     @required this.needRefresh,
   })  : assert(advancedGroupInfo != null),
         assert(needRefresh != null),
@@ -83,7 +85,11 @@ class _AuthorizedGroupPageScreenState
   void initState() {
     _tabController = TabController(
       length: _tabs.length,
-      initialIndex: 0,
+      initialIndex: widget.conversationID == null
+          ? 0
+          : 1 +
+              _group.conversations
+                  .indexWhere((element) => element.id == widget.conversationID),
       vsync: this,
     );
 
@@ -105,7 +111,7 @@ class _AuthorizedGroupPageScreenState
           Material(
             color: _headerColor,
             child: TabBar(
-              isScrollable: true,
+              isScrollable: _tabController.length > 4,
               tabs: _tabs.map((e) => e.tab).toList(),
               controller: _tabController,
             ),

lib/ui/screens/conversations_list_screen.dart

@@ -108,8 +108,8 @@ class _ConversationScreenState extends SafeState<ConversationsListScreen> {
   }
 
   /// Open a conversation
-  void _openConversation(int conversationId) {
-    MainController.of(context).openConversation(conversationId);
+  void _openConversation(Conversation conv) {
+    MainController.of(context).openConversation(conv);
     if (widget.onOpen != null) widget.onOpen();
   }
 
@@ -191,7 +191,7 @@ class _ConversationScreenState extends SafeState<ConversationsListScreen> {
                       usersList: _users,
                       groupsList: _groups,
                       onOpen: (c) {
-                        _openConversation(c.id);
+                        _openConversation(c);
                       },
                       onRequestUpdate: _updateConversation,
                       onRequestLeave: _requestLeaveConversation,

lib/ui/screens/group_screen.dart

@@ -12,9 +12,13 @@ import 'package:flutter/material.dart';
 
 class GroupPageScreen extends StatefulWidget {
   final int groupID;
+  final int conversationID;
 
-  const GroupPageScreen({Key key, @required this.groupID})
-      : assert(groupID != null),
+  const GroupPageScreen({
+    Key key,
+    @required this.groupID,
+    this.conversationID,
+  })  : assert(groupID != null),
         super(key: key);
 
   @override
@@ -57,6 +61,7 @@ class _GroupPageScreenState extends SafeState<GroupPageScreen> {
     // Now we can show group page
     return AuthorizedGroupPageScreen(
       advancedGroupInfo: _getGroupResult.info,
+      conversationID: widget.conversationID,
       needRefresh: () => _refreshPage(),
     );
   }

lib/ui/screens/unread_conversations_screen.dart

@@ -104,7 +104,7 @@ class _UnreadConversationsScreenState
         ]),
       ),
       trailing: Text(diffTimeFromNowToStr(conv.message.timeSent)),
-      onTap: () => MainController.of(context).openConversation(conv.conv.id),
+      onTap: () => MainController.of(context).openConversationById(conv.conv.id),
     );
   }
 }

lib/ui/screens/update_conversation_screen.dart

@@ -301,7 +301,7 @@ class _UpdateConversationScreen extends State<UpdateConversationScreen> {
                 color: _color));
 
         MainController.of(context).popPage();
-        MainController.of(context).openConversation(conversationID);
+        MainController.of(context).openConversationById(conversationID);
         return;
       }
 

lib/ui/widgets/tablet_mode/conversations/conversation_window.dart

@@ -175,7 +175,7 @@ class _ConversationWindowState extends SafeState<ConversationWindow> {
   }
 
   void _openFullScreen() {
-    MainController.of(context).openConversation(_convID, fullScreen: true);
+    MainController.of(context).openConversationById(_convID, fullScreen: true);
     widget.onClose();
   }
 

lib/ui/widgets/tablet_mode/memberships_panel.dart

@@ -223,7 +223,7 @@ class _MembershipsPanelState extends SafeState<MembershipsPanel> {
         subtitle: Text(diffTimeFromNowToStr(membership.lastActive) +
             (conversation.isHavingCall ? "\n" + tr("Ongoing call") : "")),
         onTap: () => MainController.of(context)
-            .openConversation(conversation.id, fullScreen: true),
+            .openConversationById(conversation.id, fullScreen: true),
         trailing: conversation.isHavingCall
             ? FloatingActionButton(
                 heroTag: null,