refact: Make DOMElement inherit from Component

Author: alexanderGugel

dom-renderables/DOMElement.js

@@ -25,6 +25,7 @@
 'use strict';
 
 var CallbackStore = require('../utilities/CallbackStore');
+var Component = require('../core/Component');
 
 var RENDER_SIZE = 2;
 
@@ -34,6 +35,7 @@ var RENDER_SIZE = 2;
  * to through their Nodes to the Compositor where they are acted upon.
  *
  * @class DOMElement
+ * @augments Component
  *
  * @param {Node} node                   The Node to which the `DOMElement`
  *                                      renderable should be attached to.
@@ -52,13 +54,11 @@ var RENDER_SIZE = 2;
  *                                      for DOM and WebGL layering.  On by default.
  */
 function DOMElement(node, options) {
-    if (!node) throw new Error('DOMElement must be instantiated on a node');
+    Component.call(this, node);
 
-    this._node = node;
     this._parent = null;
     this._children = [];
 
-    this._requestingUpdate = false;
     this._renderSized = false;
     this._requestRenderSize = false;
 
@@ -105,6 +105,9 @@ function DOMElement(node, options) {
     if (options.cutout === false) this.setCutoutState(options.cutout);
 }
 
+DOMElement.prototype = Object.create(Component.prototype);
+DOMElement.prototype.constructor = DOMElement;
+
 /**
  * Serializes the state of the DOMElement.
  *
@@ -152,7 +155,7 @@ DOMElement.prototype.onUpdate = function onUpdate() {
 
     }
 
-    this._requestingUpdate = false;
+    Component.prototype.onUpdate.call(this);
 };
 
 /**
@@ -425,21 +428,6 @@ DOMElement.prototype.getRenderSize = function getRenderSize() {
     return this._renderSize;
 };
 
-/**
- * Method to have the component request an update from its Node
- *
- * @method
- * @private
- *
- * @return {undefined} undefined
- */
-DOMElement.prototype._requestUpdate = function _requestUpdate() {
-    if (!this._requestingUpdate) {
-        this._node.requestUpdate(this._id);
-        this._requestingUpdate = true;
-    }
-};
-
 /**
  * Initializes the DOMElement by sending the `INIT_DOM` command. This creates
  * or reallocates a new Element in the actual DOM hierarchy.