feat: Implement change device name

lib/l10n/intl_en.arb

@@ -159,6 +159,11 @@
     "type": "text",
     "placeholders": {}
   },
+  "changeDeviceName": "Change device name",
+  "@changeDeviceName": {
+    "type": "text",
+    "placeholders": {}
+  },
   "changedTheChatAvatar": "{username} changed the chat avatar",
   "@changedTheChatAvatar": {
     "type": "text",

lib/views/settings_devices.dart

@@ -56,6 +56,19 @@ class DevicesSettingsState extends State<DevicesSettings> {
     }
   }
 
+  void _renameDeviceAction(BuildContext context, Device device) async {
+    final displayName = await SimpleDialogs(context).enterText(
+      hintText: device.displayName,
+      labelText: L10n.of(context).changeDeviceName,
+    );
+    if (displayName == null) return;
+    await SimpleDialogs(context).tryRequestWithLoadingDialog(
+      Matrix.of(context)
+          .client
+          .setDeviceMetadata(device.deviceId, displayName: displayName),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -117,6 +130,7 @@ class DevicesSettingsState extends State<DevicesSettings> {
                         itemBuilder: (BuildContext context, int i) =>
                             UserDeviceListItem(
                           devices[i],
+                          rename: (d) => _renameDeviceAction(context, d),
                           remove: (d) => _removeDevicesAction(context, [d]),
                         ),
                       ),
@@ -132,23 +146,34 @@ class DevicesSettingsState extends State<DevicesSettings> {
 class UserDeviceListItem extends StatelessWidget {
   final Device userDevice;
   final Function remove;
+  final Function rename;
 
-  const UserDeviceListItem(this.userDevice, {this.remove, Key key})
+  const UserDeviceListItem(this.userDevice, {this.remove, this.rename, Key key})
       : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return PopupMenuButton(
       onSelected: (String action) {
-        if (action == 'remove' && remove != null) {
+        switch (action) {
-          remove(userDevice);
+          case 'remove':
+            if (remove != null) remove(userDevice);
+            break;
+          case 'rename':
+            if (rename != null) rename(userDevice);
         }
       },
       itemBuilder: (BuildContext context) => [
+        PopupMenuItem<String>(
+          value: 'rename',
+          child: Text(L10n.of(context).changeDeviceName),
+        ),
         PopupMenuItem<String>(
           value: 'remove',
-          child: Text(L10n.of(context).removeDevice,
+          child: Text(
-              style: TextStyle(color: Colors.red)),
+            L10n.of(context).removeDevice,
+            style: TextStyle(color: Colors.red),
+          ),
         ),
       ],
       child: ListTile(