[Color Picker] Use escape key to exit colour editor UI (#10325)

* Use escape key to exit color editor UI

* Logic handling formatting

src/modules/colorPicker/ColorPickerUI/Helpers/AppStateHandler.cs

@@ -71,6 +71,25 @@ namespace ColorPicker.Helpers
             _colorEditorWindow.Show();
         }
 
+        public void HideColorPickerEditor()
+        {
+            if (_colorEditorWindow != null)
+            {
+                _colorEditorWindow.Hide();
+            }
+        }
+
+        public bool IsColorPickerEditorVisible()
+        {
+            if (_colorEditorWindow != null)
+            {
+                // Check if we are visible and on top. Using focus producing unreliable results the first time the picker is opened.
+                return _colorEditorWindow.Topmost && _colorEditorWindow.IsVisible;
+            }
+
+            return false;
+        }
+
         public static void SetTopMost()
         {
             Application.Current.MainWindow.Topmost = false;

src/modules/colorPicker/ColorPickerUI/Keyboard/KeyboardMonitor.cs

@@ -72,8 +72,16 @@ namespace ColorPicker.Keyboard
             // ESC pressed
             if (virtualCode == KeyInterop.VirtualKeyFromKey(Key.Escape))
             {
-                _appStateHandler.HideColorPicker();
+                if (_appStateHandler.IsColorPickerEditorVisible())
-                PowerToysTelemetry.Log.WriteEvent(new ColorPickerCancelledEvent());
+                {
+                    _appStateHandler.HideColorPickerEditor();
+                }
+                else
+                {
+                    _appStateHandler.HideColorPicker();
+                    PowerToysTelemetry.Log.WriteEvent(new ColorPickerCancelledEvent());
+                }
+
                 return;
             }