Remove all keyboard shortcuts

Author: jarlef

src/Blazor.Diagrams.Core/Behaviors/KeyboardShortcutsBehavior.cs

@@ -2,41 +2,54 @@
 using Blazor.Diagrams.Core.Utils;
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 
 namespace Blazor.Diagrams.Core.Behaviors;
 
 public class KeyboardShortcutsBehavior : Behavior
 {
-    private readonly Dictionary<string, Func<Diagram, ValueTask>> _shortcuts;
+    public record KeyboardShortcut(string Key, bool Ctrl, bool Shift, bool Alt, Func<Diagram, ValueTask> Action);
+    
+    private readonly Dictionary<string, KeyboardShortcut> _shortcuts;
 
     public KeyboardShortcutsBehavior(Diagram diagram) : base(diagram)
     {
-        _shortcuts = new Dictionary<string, Func<Diagram, ValueTask>>();
+        _shortcuts = new Dictionary<string, KeyboardShortcut>();
         SetShortcut("Delete", false, false, false, KeyboardShortcutsDefaults.DeleteSelection);
         SetShortcut("g", true, false, true, KeyboardShortcutsDefaults.Grouping);
 
         Diagram.KeyDown += OnDiagramKeyDown;
     }
 
+    public KeyboardShortcut[] GetShortcuts()
+    {
+        return _shortcuts.Values.ToArray();
+    }
+    
     public void SetShortcut(string key, bool ctrl, bool shift, bool alt, Func<Diagram, ValueTask> action)
     {
         var k = KeysUtils.GetStringRepresentation(ctrl, shift, alt, key);
-        _shortcuts[k] = action;
+        _shortcuts[k] = new KeyboardShortcut(key, ctrl, shift, alt, action);
     }
-
+    
     public bool RemoveShortcut(string key, bool ctrl, bool shift, bool alt)
     {
         var k = KeysUtils.GetStringRepresentation(ctrl, shift, alt, key);
         return _shortcuts.Remove(k);
     }
 
+    public void RemoveAllShortcuts()
+    {
+        _shortcuts.Clear();
+    }
+
     private async void OnDiagramKeyDown(KeyboardEventArgs e)
     {
         var k = KeysUtils.GetStringRepresentation(e.CtrlKey, e.ShiftKey, e.AltKey, e.Key);
-        if (_shortcuts.TryGetValue(k, out var action))
+        if (_shortcuts.TryGetValue(k, out var shortcut))
         {
-            await action(Diagram);
+            await shortcut.Action(Diagram);
         }
     }
 

tests/Blazor.Diagrams.Core.Tests/Behaviors/KeyboardShortcutsBehaviorTests.cs

@@ -36,6 +36,19 @@ public void Behavior_ShouldExecuteAction_WhenCombinationIsPressed(string key, bo
         executed.Should().BeTrue();
     }
 
+    [Fact]
+    public void RemoveAll_ShouldRemoveAllShortcuts()
+    {
+        var diagram = new TestDiagram();
+        var ksb = diagram.GetBehavior<KeyboardShortcutsBehavior>()!;
+        
+        ksb.GetShortcuts().Length.Should().Be(2);
+        
+        ksb.RemoveAllShortcuts();
+
+        ksb.GetShortcuts().Length.Should().Be(0);
+    }
+
     [Fact]
     public void Behavior_ShouldDoNothing_WhenRemoved()
     {