Display conversation

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

@@ -1,4 +1,6 @@
+import 'package:comunic/helpers/conversations_helper.dart';
 import 'package:comunic/models/conversation.dart';
+import 'package:comunic/ui/screens/conversation_screen.dart';
 import 'package:comunic/ui/widgets/safe_state.dart';
 import 'package:comunic/ui/widgets/tablet_mode/conversations/conversation_window_container.dart';
 import 'package:comunic/utils/intl_utils.dart';
@@ -28,13 +30,71 @@ class ConversationWindow extends StatefulWidget {
 class _ConversationWindowState extends SafeState<ConversationWindow> {
   Conversation _conversation;
   String _convTitle;
+  bool _error = false;
+
+  int get _convID => widget.convID;
+
+  void _setError(bool e) => setState(() => _error = e);
+
+  Future<void> _refresh() async {
+    try {
+      _setError(false);
+
+      final conversation =
+          await ConversationsHelper().getSingle(_convID, force: true);
+      assert(conversation != null);
+      final name =
+          await ConversationsHelper.getConversationNameAsync(conversation);
+      assert(name != null);
+
+      setState(() {
+        _conversation = conversation;
+        _convTitle = name;
+      });
+    } catch (e, s) {
+      _setError(true);
+      print("Could not refresh the list of conversations! $e\n$s");
+      showSimpleSnack(context, tr("Could not load conversation information!"));
+    }
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _refresh();
+  }
 
   @override
   Widget build(BuildContext context) {
+    // In case of error
+    if (_error)
+      return ConversationWindowContainer(
+        title: Text(tr("Error")),
+        onClose: widget.onClose,
+        body: buildErrorCard(tr("Could not load conversation information!"),
+            actions: [
+              FlatButton(
+                textColor: Colors.white,
+                onPressed: _refresh,
+                child: Text(tr("Try again").toUpperCase()),
+              )
+            ]),
+      );
+
+    // If it is still loading
+    if (_conversation == null)
+      return ConversationWindowContainer(
+        title: Text(tr("Loading...")),
+        onClose: widget.onClose,
+        body: buildCenteredProgressBar(),
+      );
+
     return ConversationWindowContainer(
-      title: Text(tr("Loading...")),
+      title: Text(_convTitle),
       onClose: widget.onClose,
-      body: buildCenteredProgressBar(),
+      body: ConversationScreen(
+        conversationID: _convID,
+      ),
     );
   }
 }