Merge pull request #30 from ckeditor/t/29

Other: Switched to handling deletion around widgets by using the `delete` event instead of listening directly on key events. Closes #29.

package.json

@@ -13,6 +13,7 @@
     "@ckeditor/ckeditor5-theme-lark": "^1.0.0-alpha.2"
   },
   "devDependencies": {
+    "@ckeditor/ckeditor5-typing": "^1.0.0-alpha.2",
     "eslint": "^4.8.0",
     "eslint-config-ckeditor5": "^1.0.7",
     "husky": "^0.14.3",

src/widget.js

@@ -84,6 +84,14 @@ export default class Widget extends Plugin {
 
 		// Handle custom keydown behaviour.
 		this.listenTo( viewDocument, 'keydown', ( ...args ) => this._onKeydown( ...args ), { priority: 'high' } );
+
+		// Handle custom delete behaviour.
+		this.listenTo( viewDocument, 'delete', ( evt, data ) => {
+			if ( this._handleDelete( data.direction == 'forward' ) ) {
+				data.preventDefault();
+				evt.stop();
+			}
+		}, { priority: 'high' } );
 	}
 
 	/**
@@ -141,9 +149,7 @@ export default class Widget extends Plugin {
 
 		// Checks if the keys were handled and then prevents the default event behaviour and stops
 		// the propagation.
-		if ( isDeleteKeyCode( keyCode ) ) {
-			wasHandled = this._handleDelete( isForward );
-		} else if ( isArrowKeyCode( keyCode ) ) {
+		if ( isArrowKeyCode( keyCode ) ) {
 			wasHandled = this._handleArrowKeys( isForward );
 		} else if ( isSelectAllKeyCode( domEventData ) ) {
 			wasHandled = this._selectAllNestedEditableContent() || this._selectAllContent();
@@ -356,14 +362,6 @@ function isArrowKeyCode( keyCode ) {
 		keyCode == keyCodes.arrowdown;
 }
 
-// Returns 'true' if provided key code represents one of the delete keys: delete or backspace.
-//
-// @param {Number} keyCode
-// @returns {Boolean}
-function isDeleteKeyCode( keyCode ) {
-	return keyCode == keyCodes.delete || keyCode == keyCodes.backspace;
-}
-
 // Returns 'true' if provided (DOM) key event data corresponds with the Ctrl+A keystroke.
 //
 // @param {module:engine/view/observer/keyobserver~KeyEventData} domEventData