Erweiterungen

lib/content_views/messages_page.dart

@@ -84,6 +84,9 @@ class _MessagesPageState extends State<MessagesPage> {
           showUserAvatars: false,
           showUserNames: false,
           user: _user,
+          onMessageTap: (context, message) => {
+            _showDeleteMessageDialog(context, message)
+          },
         ),
       ],
     );
@@ -129,8 +132,10 @@ class _MessagesPageState extends State<MessagesPage> {
 
       _messages.insert(0, types.TextMessage(
         author: message.from == _sid ? _user : _central,
-        createdAt: DateTime.parse(message.time).millisecondsSinceEpoch,
-        id: const Uuid().v4().toString(),
+        createdAt: DateTime
+            .parse(message.time)
+            .millisecondsSinceEpoch,
+        id: message.id.toString(),
         text: text,
       ));
 
@@ -142,4 +147,56 @@ class _MessagesPageState extends State<MessagesPage> {
 
     setState(() {});
   }
+
+  _showDeleteMessageDialog(BuildContext context, types.Message message) async {
+    await showDialog<void>(
+        context: context,
+        builder: (BuildContext context) {
+          return AlertDialog(
+              contentPadding: EdgeInsets.zero,
+              shadowColor: Colors.transparent,
+              backgroundColor: Colors.white,
+              content: StatefulBuilder(builder: (BuildContext context, StateSetter setState) {
+                return SizedBox(
+                    key: GlobalKey(),
+                    height: 120,
+                    width: MediaQuery
+                        .of(context)
+                        .size
+                        .width * 1.2,
+                    child: Padding(
+                      padding: const EdgeInsets.all(8.0),
+                      child: Container(
+                        height: 100,
+                        padding: const EdgeInsets.all(5),
+                        child: Column(
+                          children: [
+                            const Text('Soll die Nachricht gelöscht werden?'),
+                            const SizedBox(height: 20),
+                            Row(children: [
+                              Expanded(
+                                child: getDefaultButton('Nein', () => {Navigator.of(context).pop()}),
+                              ),
+                              const SizedBox(width: 20),
+                              Expanded(
+                                child: getDefaultButton('Ja', () => {
+                                MyApp.isarInstance.writeTxnSync(() => {MyApp.isarInstance.messages.deleteSync(int.parse(message.id))}),
+
+                                _fetchMessages(),
+
+                                setState(() {}),
+
+                                Navigator.of(context).pop()
+                              }),
+                              )
+                            ])
+                          ],
+                        ),
+                      ),
+                    )
+                );
+              })
+          );
+        });
+  }
 }