Pinned chat message + brand wordmark assets. Chat can pin one message to a banner above the feed: ChatMessage.IsPinned, MainViewModel.PinnedChatMessage + Pin/ClearPinnedChatMessageCommand (Helpers/RelayCommandGeneric.cs), LeftPanel pinned-message border bound via NotNullToVis with the feed nudged down.

2026-10-10 14:54:08 -07:00
parent 8e1d6f44db
commit 931ab46783
9 changed files with 56 additions and 1 deletions
@@ -0,0 +1,34 @@
+using System;
+using System.Windows.Input;
+
+namespace ytLive.Helpers;
+
+public class RelayCommand<T> : ICommand
+{
+    private readonly Action<T?> _execute;
+    private readonly Predicate<T?>? _canExecute;
+
+    public RelayCommand(Action<T?> execute, Predicate<T?>? canExecute = null)
+    {
+        _execute = execute;
+        _canExecute = canExecute;
+    }
+
+    public event EventHandler? CanExecuteChanged
+    {
+        add => CommandManager.RequerySuggested += value;
+        remove => CommandManager.RequerySuggested -= value;
+    }
+
+    public bool CanExecute(object? parameter)
+    {
+        if (parameter is T t) return _canExecute?.Invoke(t) ?? true;
+        return _canExecute?.Invoke(default) ?? true;
+    }
+
+    public void Execute(object? parameter)
+    {
+        if (parameter is T t) _execute(t);
+        else _execute(default);
+    }
+}