| /* |
| * Copyright 2013 The Polymer Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style |
| * license that can be found in the LICENSE file. |
| */ |
| (function() { |
| var ShadowDOMPolyfill = window.ShadowDOMPolyfill; |
| var wrap = ShadowDOMPolyfill.wrap; |
| |
| // patch in prefixed name |
| Object.defineProperties(HTMLElement.prototype, { |
| //TODO(sjmiles): review accessor alias with Arv |
| webkitShadowRoot: { |
| get: function() { |
| return this.shadowRoot; |
| } |
| } |
| }); |
| |
| //TODO(sjmiles): review method alias with Arv |
| HTMLElement.prototype.webkitCreateShadowRoot = |
| HTMLElement.prototype.createShadowRoot; |
| |
| // TODO(jmesserly): we need to wrap document somehow (a dart:html hook?) |
| window.dartExperimentalFixupGetTag = function(originalGetTag) { |
| var NodeList = ShadowDOMPolyfill.wrappers.NodeList; |
| var ShadowRoot = ShadowDOMPolyfill.wrappers.ShadowRoot; |
| var unwrapIfNeeded = ShadowDOMPolyfill.unwrapIfNeeded; |
| function getTag(obj) { |
| // TODO(jmesserly): do we still need these? |
| if (obj instanceof NodeList) return 'NodeList'; |
| if (obj instanceof ShadowRoot) return 'ShadowRoot'; |
| if (window.MutationRecord && (obj instanceof MutationRecord)) |
| return 'MutationRecord'; |
| if (window.MutationObserver && (obj instanceof MutationObserver)) |
| return 'MutationObserver'; |
| |
| var unwrapped = unwrapIfNeeded(obj); |
| if (obj !== unwrapped) { |
| // Fix up class names for Firefox. |
| // For some of them (like HTMLFormElement and HTMLInputElement), |
| // the "constructor" property of the unwrapped nodes points at the |
| // same constructor as the wrapper. |
| var ctor = obj.constructor |
| if (ctor === unwrapped.constructor) { |
| var name = ctor._ShadowDOMPolyfill$cacheTag_; |
| if (!name) { |
| name = Object.prototype.toString.call(unwrapped); |
| name = name.substring(8, name.length - 1); |
| ctor._ShadowDOMPolyfill$cacheTag_ = name; |
| } |
| return name; |
| } |
| |
| obj = unwrapped; |
| } |
| return originalGetTag(obj); |
| } |
| |
| return getTag; |
| }; |
| })(); |