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third_party/polymer/components/webcomponentsjs/ShadowDOM.js

Index: third_party/polymer/components/webcomponentsjs/ShadowDOM.js
diff --git a/third_party/polymer/components/webcomponentsjs/ShadowDOM.js b/third_party/polymer/components/webcomponentsjs/ShadowDOM.js
index 5a59b4da12be1c9e686ce2cfa0e2805aa799cb44..96647356a0011c94a25d1612626df6a96698758b 100644
--- a/third_party/polymer/components/webcomponentsjs/ShadowDOM.js
+++ b/third_party/polymer/components/webcomponentsjs/ShadowDOM.js
@@ -7,7 +7,7 @@
  * Code distributed by Google as part of the polymer project is also
  * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
  */
-// @version 0.7.22
+// @version 0.6.1
 if (typeof WeakMap === "undefined") {
   (function() {
     var defineProperty = Object.defineProperty;
@@ -113,7 +113,7 @@ window.ShadowDOMPolyfill = {};
     defineProperty(object, name, nonEnumerableDataDescriptor);
   }
   getOwnPropertyNames(window);
-  function getWrapperConstructor(node, opt_instance) {
+  function getWrapperConstructor(node) {
     var nativePrototype = node.__proto__ || Object.getPrototypeOf(node);
     if (isFirefox) {
       try {
@@ -126,7 +126,7 @@ window.ShadowDOMPolyfill = {};
     if (wrapperConstructor) return wrapperConstructor;
     var parentWrapperConstructor = getWrapperConstructor(nativePrototype);
     var GeneratedWrapper = createWrapperConstructor(parentWrapperConstructor);
-    registerInternal(nativePrototype, GeneratedWrapper, opt_instance);
+    registerInternal(nativePrototype, GeneratedWrapper, node);
     return GeneratedWrapper;
   }
   function addForwardingProperties(nativePrototype, wrapperPrototype) {
@@ -186,10 +186,8 @@ window.ShadowDOMPolyfill = {};
       }
       var descriptor = getDescriptor(source, name);
       var getter, setter;
-      if (typeof descriptor.value === "function") {
-        if (allowMethod) {
-          target[name] = getMethod(name);
-        }
+      if (allowMethod && typeof descriptor.value === "function") {
+        target[name] = getMethod(name);
         continue;
       }
       var isEvent = isEventHandlerName(name);
@@ -207,9 +205,6 @@ window.ShadowDOMPolyfill = {};
     }
   }
   function register(nativeConstructor, wrapperConstructor, opt_instance) {
-    if (nativeConstructor == null) {
-      return;
-    }
     var nativePrototype = nativeConstructor.prototype;
     registerInternal(nativePrototype, wrapperConstructor, opt_instance);
     mixinStatics(wrapperConstructor, nativeConstructor);
@@ -252,11 +247,7 @@ window.ShadowDOMPolyfill = {};
   function wrap(impl) {
     if (impl === null) return null;
     assert(isNative(impl));
-    var wrapper = impl.__wrapper8e3dd93a60__;
-    if (wrapper != null) {
-      return wrapper;
-    }
-    return impl.__wrapper8e3dd93a60__ = new (getWrapperConstructor(impl, impl))(impl);
+    return impl.__wrapper8e3dd93a60__ || (impl.__wrapper8e3dd93a60__ = new (getWrapperConstructor(impl))(impl));
   }
   function unwrap(wrapper) {
     if (wrapper === null) return null;
@@ -306,7 +297,6 @@ window.ShadowDOMPolyfill = {};
       });
     });
   }
-  scope.addForwardingProperties = addForwardingProperties;
   scope.assert = assert;
   scope.constructorTable = constructorTable;
   scope.defineGetter = defineGetter;
@@ -1119,24 +1109,6 @@ window.ShadowDOMPolyfill = {};
       stopImmediatePropagationTable.set(this, true);
     }
   };
-  var supportsDefaultPrevented = function() {
-    var e = document.createEvent("Event");
-    e.initEvent("test", true, true);
-    e.preventDefault();
-    return e.defaultPrevented;
-  }();
-  if (!supportsDefaultPrevented) {
-    Event.prototype.preventDefault = function() {
-      if (!this.cancelable) return;
-      unsafeUnwrap(this).preventDefault();
-      Object.defineProperty(this, "defaultPrevented", {
-        get: function() {
-          return true;
-        },
-        configurable: true
-      });
-    };
-  }
   registerWrapper(OriginalEvent, Event, document.createEvent("Event"));
   function unwrapOptions(options) {
     if (!options || !options.relatedTarget) return options;
@@ -1764,8 +1736,8 @@ window.ShadowDOMPolyfill = {};
   var originalInsertBefore = OriginalNode.prototype.insertBefore;
   var originalRemoveChild = OriginalNode.prototype.removeChild;
   var originalReplaceChild = OriginalNode.prototype.replaceChild;
-  var isIEOrEdge = /Trident|Edge/.test(navigator.userAgent);
-  var removeChildOriginalHelper = isIEOrEdge ? function(parent, child) {
+  var isIe = /Trident|Edge/.test(navigator.userAgent);
+  var removeChildOriginalHelper = isIe ? function(parent, child) {
     try {
       originalRemoveChild.call(parent, child);
     } catch (ex) {
@@ -2277,14 +2249,7 @@ window.ShadowDOMPolyfill = {};
       return backwardsElement(this.previousSibling);
     }
   };
-  var NonElementParentNodeInterface = {
-    getElementById: function(id) {
-      if (/[ \t\n\r\f]/.test(id)) return null;
-      return this.querySelector('[id="' + id + '"]');
-    }
-  };
   scope.ChildNodeInterface = ChildNodeInterface;
-  scope.NonElementParentNodeInterface = NonElementParentNodeInterface;
   scope.ParentNodeInterface = ParentNodeInterface;
 })(window.ShadowDOMPolyfill);
 
@@ -2565,12 +2530,6 @@ window.ShadowDOMPolyfill = {};
   }
   var voidElements = makeSet([ "area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param", "source", "track", "wbr" ]);
   var plaintextParents = makeSet([ "style", "script", "xmp", "iframe", "noembed", "noframes", "plaintext", "noscript" ]);
-  var XHTML_NS = "http://www.w3.org/1999/xhtml";
-  function needsSelfClosingSlash(node) {
-    if (node.namespaceURI !== XHTML_NS) return true;
-    var doctype = node.ownerDocument.doctype;
-    return doctype && doctype.publicId && doctype.systemId;
-  }
   function getOuterHTML(node, parentNode) {
     switch (node.nodeType) {
      case Node.ELEMENT_NODE:
@@ -2580,11 +2539,9 @@ window.ShadowDOMPolyfill = {};
       for (var i = 0, attr; attr = attrs[i]; i++) {
         s += " " + attr.name + '="' + escapeAttr(attr.value) + '"';
       }
-      if (voidElements[tagName]) {
-        if (needsSelfClosingSlash(node)) s += "/";
-        return s + ">";
-      }
-      return s + ">" + getInnerHTML(node) + "</" + tagName + ">";
+      s += ">";
+      if (voidElements[tagName]) return s;
+      return s + getInnerHTML(node) + "</" + tagName + ">";
 
      case Node.TEXT_NODE:
       var data = node.data;
@@ -2742,7 +2699,7 @@ window.ShadowDOMPolyfill = {};
       enumerable: true
     });
   }
-  [ "focus", "getBoundingClientRect", "getClientRects", "scrollIntoView" ].forEach(methodRequiresRendering);
+  [ "getBoundingClientRect", "getClientRects", "scrollIntoView" ].forEach(methodRequiresRendering);
   registerWrapper(OriginalHTMLElement, HTMLElement, document.createElement("b"));
   scope.wrappers.HTMLElement = HTMLElement;
   scope.getInnerHTML = getInnerHTML;
@@ -3164,29 +3121,18 @@ window.ShadowDOMPolyfill = {};
   "use strict";
   var Element = scope.wrappers.Element;
   var HTMLElement = scope.wrappers.HTMLElement;
-  var registerWrapper = scope.registerWrapper;
+  var registerObject = scope.registerObject;
   var defineWrapGetter = scope.defineWrapGetter;
-  var unsafeUnwrap = scope.unsafeUnwrap;
-  var wrap = scope.wrap;
-  var mixin = scope.mixin;
   var SVG_NS = "http://www.w3.org/2000/svg";
-  var OriginalSVGElement = window.SVGElement;
   var svgTitleElement = document.createElementNS(SVG_NS, "title");
+  var SVGTitleElement = registerObject(svgTitleElement);
+  var SVGElement = Object.getPrototypeOf(SVGTitleElement.prototype).constructor;
   if (!("classList" in svgTitleElement)) {
     var descr = Object.getOwnPropertyDescriptor(Element.prototype, "classList");
     Object.defineProperty(HTMLElement.prototype, "classList", descr);
     delete Element.prototype.classList;
   }
-  function SVGElement(node) {
-    Element.call(this, node);
-  }
-  SVGElement.prototype = Object.create(Element.prototype);
-  mixin(SVGElement.prototype, {
-    get ownerSVGElement() {
-      return wrap(unsafeUnwrap(this).ownerSVGElement);
-    }
-  });
-  registerWrapper(OriginalSVGElement, SVGElement, document.createElementNS(SVG_NS, "title"));
+  defineWrapGetter(SVGElement, "ownerSVGElement");
   scope.wrappers.SVGElement = SVGElement;
 })(window.ShadowDOMPolyfill);
 
@@ -3296,7 +3242,6 @@ window.ShadowDOMPolyfill = {};
 
 (function(scope) {
   "use strict";
-  var addForwardingProperties = scope.addForwardingProperties;
   var mixin = scope.mixin;
   var registerWrapper = scope.registerWrapper;
   var setWrapper = scope.setWrapper;
@@ -3321,10 +3266,6 @@ window.ShadowDOMPolyfill = {};
       unsafeUnwrap(this).texSubImage2D.apply(unsafeUnwrap(this), arguments);
     }
   });
-  var OriginalWebGLRenderingContextBase = Object.getPrototypeOf(OriginalWebGLRenderingContext.prototype);
-  if (OriginalWebGLRenderingContextBase !== Object.prototype) {
-    addForwardingProperties(OriginalWebGLRenderingContextBase, WebGLRenderingContext.prototype);
-  }
   var instanceProperties = /WebKit/.test(navigator.userAgent) ? {
     drawingBufferHeight: null,
     drawingBufferWidth: null
@@ -3335,27 +3276,18 @@ window.ShadowDOMPolyfill = {};
 
 (function(scope) {
   "use strict";
-  var Node = scope.wrappers.Node;
   var GetElementsByInterface = scope.GetElementsByInterface;
-  var NonElementParentNodeInterface = scope.NonElementParentNodeInterface;
   var ParentNodeInterface = scope.ParentNodeInterface;
   var SelectorsInterface = scope.SelectorsInterface;
   var mixin = scope.mixin;
   var registerObject = scope.registerObject;
-  var registerWrapper = scope.registerWrapper;
-  var OriginalDocumentFragment = window.DocumentFragment;
-  function DocumentFragment(node) {
-    Node.call(this, node);
-  }
-  DocumentFragment.prototype = Object.create(Node.prototype);
+  var DocumentFragment = registerObject(document.createDocumentFragment());
   mixin(DocumentFragment.prototype, ParentNodeInterface);
   mixin(DocumentFragment.prototype, SelectorsInterface);
   mixin(DocumentFragment.prototype, GetElementsByInterface);
-  mixin(DocumentFragment.prototype, NonElementParentNodeInterface);
-  registerWrapper(OriginalDocumentFragment, DocumentFragment, document.createDocumentFragment());
-  scope.wrappers.DocumentFragment = DocumentFragment;
   var Comment = registerObject(document.createComment(""));
   scope.wrappers.Comment = Comment;
+  scope.wrappers.DocumentFragment = DocumentFragment;
 })(window.ShadowDOMPolyfill);
 
 (function(scope) {
@@ -3370,9 +3302,9 @@ window.ShadowDOMPolyfill = {};
   var setInnerHTML = scope.setInnerHTML;
   var unsafeUnwrap = scope.unsafeUnwrap;
   var unwrap = scope.unwrap;
-  var wrap = scope.wrap;
   var shadowHostTable = new WeakMap();
   var nextOlderShadowTreeTable = new WeakMap();
+  var spaceCharRe = /[ \t\n\r\f]/;
   function ShadowRoot(hostWrapper) {
     var node = unwrap(unsafeUnwrap(hostWrapper).ownerDocument.createDocumentFragment());
     DocumentFragment.call(this, node);
@@ -3404,24 +3336,9 @@ window.ShadowDOMPolyfill = {};
     elementFromPoint: function(x, y) {
       return elementFromPoint(this, this.ownerDocument, x, y);
     },
-    getSelection: function() {
-      return document.getSelection();
-    },
-    get activeElement() {
-      var unwrappedActiveElement = unwrap(this).ownerDocument.activeElement;
-      if (!unwrappedActiveElement || !unwrappedActiveElement.nodeType) return null;
-      var activeElement = wrap(unwrappedActiveElement);
-      while (!this.contains(activeElement)) {
-        while (activeElement.parentNode) {
-          activeElement = activeElement.parentNode;
-        }
-        if (activeElement.host) {
-          activeElement = activeElement.host;
-        } else {
-          return null;
-        }
-      }
-      return activeElement;
+    getElementById: function(id) {
+      if (spaceCharRe.test(id)) return null;
+      return this.querySelector('[id="' + id + '"]');
     }
   });
   scope.wrappers.ShadowRoot = ShadowRoot;
@@ -4013,7 +3930,7 @@ window.ShadowDOMPolyfill = {};
       unsafeUnwrap(this).removeRange(unwrap(range));
     },
     selectAllChildren: function(node) {
-      unsafeUnwrap(this).selectAllChildren(node instanceof ShadowRoot ? unsafeUnwrap(node.host) : unwrapIfNeeded(node));
+      unsafeUnwrap(this).selectAllChildren(unwrapIfNeeded(node));
     },
     toString: function() {
       return unsafeUnwrap(this).toString();
@@ -4080,13 +3997,11 @@ window.ShadowDOMPolyfill = {};
   var GetElementsByInterface = scope.GetElementsByInterface;
   var Node = scope.wrappers.Node;
   var ParentNodeInterface = scope.ParentNodeInterface;
-  var NonElementParentNodeInterface = scope.NonElementParentNodeInterface;
   var Selection = scope.wrappers.Selection;
   var SelectorsInterface = scope.SelectorsInterface;
   var ShadowRoot = scope.wrappers.ShadowRoot;
   var TreeScope = scope.TreeScope;
   var cloneNode = scope.cloneNode;
-  var defineGetter = scope.defineGetter;
   var defineWrapGetter = scope.defineWrapGetter;
   var elementFromPoint = scope.elementFromPoint;
   var forwardMethodsToWrapper = scope.forwardMethodsToWrapper;
@@ -4110,29 +4025,13 @@ window.ShadowDOMPolyfill = {};
   defineWrapGetter(Document, "documentElement");
   defineWrapGetter(Document, "body");
   defineWrapGetter(Document, "head");
-  defineGetter(Document, "activeElement", function() {
-    var unwrappedActiveElement = unwrap(this).activeElement;
-    if (!unwrappedActiveElement || !unwrappedActiveElement.nodeType) return null;
-    var activeElement = wrap(unwrappedActiveElement);
-    while (!this.contains(activeElement)) {
-      while (activeElement.parentNode) {
-        activeElement = activeElement.parentNode;
-      }
-      if (activeElement.host) {
-        activeElement = activeElement.host;
-      } else {
-        return null;
-      }
-    }
-    return activeElement;
-  });
   function wrapMethod(name) {
     var original = document[name];
     Document.prototype[name] = function() {
       return wrap(original.apply(unsafeUnwrap(this), arguments));
     };
   }
-  [ "createComment", "createDocumentFragment", "createElement", "createElementNS", "createEvent", "createEventNS", "createRange", "createTextNode" ].forEach(wrapMethod);
+  [ "createComment", "createDocumentFragment", "createElement", "createElementNS", "createEvent", "createEventNS", "createRange", "createTextNode", "getElementById" ].forEach(wrapMethod);
   var originalAdoptNode = document.adoptNode;
   function adoptNodeNoRemove(node, doc) {
     originalAdoptNode.call(unsafeUnwrap(doc), unwrap(node));
@@ -4256,7 +4155,6 @@ window.ShadowDOMPolyfill = {};
   mixin(Document.prototype, GetElementsByInterface);
   mixin(Document.prototype, ParentNodeInterface);
   mixin(Document.prototype, SelectorsInterface);
-  mixin(Document.prototype, NonElementParentNodeInterface);
   mixin(Document.prototype, {
     get implementation() {
       var implementation = implementationTable.get(this);
@@ -4275,11 +4173,6 @@ window.ShadowDOMPolyfill = {};
   function DOMImplementation(impl) {
     setWrapper(impl, this);
   }
-  var originalCreateDocument = document.implementation.createDocument;
-  DOMImplementation.prototype.createDocument = function() {
-    arguments[2] = unwrap(arguments[2]);
-    return wrap(originalCreateDocument.apply(unsafeUnwrap(this), arguments));
-  };
   function wrapImplMethod(constructor, name) {
     var original = document.implementation[name];
     constructor.prototype[name] = function() {
@@ -4293,10 +4186,11 @@ window.ShadowDOMPolyfill = {};
     };
   }
   wrapImplMethod(DOMImplementation, "createDocumentType");
+  wrapImplMethod(DOMImplementation, "createDocument");
   wrapImplMethod(DOMImplementation, "createHTMLDocument");
   forwardImplMethod(DOMImplementation, "hasFeature");
   registerWrapper(window.DOMImplementation, DOMImplementation);
-  forwardMethodsToWrapper([ window.DOMImplementation ], [ "createDocument", "createDocumentType", "createHTMLDocument", "hasFeature" ]);
+  forwardMethodsToWrapper([ window.DOMImplementation ], [ "createDocumentType", "createDocument", "createHTMLDocument", "hasFeature" ]);
   scope.adoptNodeNoRemove = adoptNodeNoRemove;
   scope.wrappers.DOMImplementation = DOMImplementation;
   scope.wrappers.Document = Document;