Updating the channel collapsed state after channel move

ChangeLog.md

@@ -1,6 +1,7 @@
 # Changelog:
 * **04.12.20**
     - Properly logging channel creations, deletions, shows and hides
+    - Fixed missing collapsed arrow update after channel move
     
 * **03.12.20**
     - Fixed server connection tab move handler

shared/js/tree/ChannelTree.tsx

@@ -40,7 +40,12 @@ export interface ChannelTreeEvents {
 
     /* channel tree events */
     notify_channel_created: { channel: ChannelEntry },
-    notify_channel_moved: { channel: ChannelEntry },
+    notify_channel_moved: {
+        channel: ChannelEntry,
+
+        previousParent: ChannelEntry | undefined,
+        previousOrder: ChannelEntry | undefined,
+    },
     notify_channel_deleted: { channel: ChannelEntry },
     notify_channel_client_order_changed: { channel: ChannelEntry },
 
@@ -302,6 +307,9 @@ export class ChannelTree {
             return;
         }
 
+        const previousParent = channel.parent_channel();
+        const previousOrder = channel.channel_previous;
+
         this.unregisterChannelFromTree(channel);
         channel.channel_previous = channelPrevious;
         channel.channel_next = undefined;
@@ -349,7 +357,11 @@ export class ChannelTree {
         }
 
         if(triggerMoveEvent) {
-            this.events.fire("notify_channel_moved", { channel: channel });
+            this.events.fire("notify_channel_moved", {
+                channel: channel,
+                previousOrder: previousOrder,
+                previousParent: previousParent
+            });
         }
     }
 

shared/js/ui/tree/Controller.tsx

@@ -207,9 +207,18 @@ class ChannelTreeController {
     }
 
     @EventHandler<ChannelTreeEvents>("notify_channel_moved")
-    private handleChannelMoved(_event: ChannelTreeEvents["notify_channel_moved"]) {
+    private handleChannelMoved(event: ChannelTreeEvents["notify_channel_moved"]) {
         if(!this.channelTreeInitialized) { return; }
         this.sendChannelTreeEntries();
+
+        if(event.previousParent && !event.previousParent.child_channel_head) {
+            /* the collapsed state arrow changed */
+            this.sendChannelInfo(event.previousParent);
+        }
+        if(event.channel.parent_channel()) {
+            /* the collapsed state arrow may changed */
+            this.sendChannelInfo(event.channel.parent_channel());
+        }
     }
 
     @EventHandler<ChannelTreeEvents>("notify_channel_deleted")