com.vaadin.polymer.public.bower_components.webcomponentsjs.CustomElements.js Maven / Gradle / Ivy
The newest version!
/**
* @license
* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
* 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 0.7.24
if (typeof WeakMap === "undefined") {
(function() {
var defineProperty = Object.defineProperty;
var counter = Date.now() % 1e9;
var WeakMap = function() {
this.name = "__st" + (Math.random() * 1e9 >>> 0) + (counter++ + "__");
};
WeakMap.prototype = {
set: function(key, value) {
var entry = key[this.name];
if (entry && entry[0] === key) entry[1] = value; else defineProperty(key, this.name, {
value: [ key, value ],
writable: true
});
return this;
},
get: function(key) {
var entry;
return (entry = key[this.name]) && entry[0] === key ? entry[1] : undefined;
},
"delete": function(key) {
var entry = key[this.name];
if (!entry || entry[0] !== key) return false;
entry[0] = entry[1] = undefined;
return true;
},
has: function(key) {
var entry = key[this.name];
if (!entry) return false;
return entry[0] === key;
}
};
window.WeakMap = WeakMap;
})();
}
(function(global) {
if (global.JsMutationObserver) {
return;
}
var registrationsTable = new WeakMap();
var setImmediate;
if (/Trident|Edge/.test(navigator.userAgent)) {
setImmediate = setTimeout;
} else if (window.setImmediate) {
setImmediate = window.setImmediate;
} else {
var setImmediateQueue = [];
var sentinel = String(Math.random());
window.addEventListener("message", function(e) {
if (e.data === sentinel) {
var queue = setImmediateQueue;
setImmediateQueue = [];
queue.forEach(function(func) {
func();
});
}
});
setImmediate = function(func) {
setImmediateQueue.push(func);
window.postMessage(sentinel, "*");
};
}
var isScheduled = false;
var scheduledObservers = [];
function scheduleCallback(observer) {
scheduledObservers.push(observer);
if (!isScheduled) {
isScheduled = true;
setImmediate(dispatchCallbacks);
}
}
function wrapIfNeeded(node) {
return window.ShadowDOMPolyfill && window.ShadowDOMPolyfill.wrapIfNeeded(node) || node;
}
function dispatchCallbacks() {
isScheduled = false;
var observers = scheduledObservers;
scheduledObservers = [];
observers.sort(function(o1, o2) {
return o1.uid_ - o2.uid_;
});
var anyNonEmpty = false;
observers.forEach(function(observer) {
var queue = observer.takeRecords();
removeTransientObserversFor(observer);
if (queue.length) {
observer.callback_(queue, observer);
anyNonEmpty = true;
}
});
if (anyNonEmpty) dispatchCallbacks();
}
function removeTransientObserversFor(observer) {
observer.nodes_.forEach(function(node) {
var registrations = registrationsTable.get(node);
if (!registrations) return;
registrations.forEach(function(registration) {
if (registration.observer === observer) registration.removeTransientObservers();
});
});
}
function forEachAncestorAndObserverEnqueueRecord(target, callback) {
for (var node = target; node; node = node.parentNode) {
var registrations = registrationsTable.get(node);
if (registrations) {
for (var j = 0; j < registrations.length; j++) {
var registration = registrations[j];
var options = registration.options;
if (node !== target && !options.subtree) continue;
var record = callback(options);
if (record) registration.enqueue(record);
}
}
}
}
var uidCounter = 0;
function JsMutationObserver(callback) {
this.callback_ = callback;
this.nodes_ = [];
this.records_ = [];
this.uid_ = ++uidCounter;
}
JsMutationObserver.prototype = {
observe: function(target, options) {
target = wrapIfNeeded(target);
if (!options.childList && !options.attributes && !options.characterData || options.attributeOldValue && !options.attributes || options.attributeFilter && options.attributeFilter.length && !options.attributes || options.characterDataOldValue && !options.characterData) {
throw new SyntaxError();
}
var registrations = registrationsTable.get(target);
if (!registrations) registrationsTable.set(target, registrations = []);
var registration;
for (var i = 0; i < registrations.length; i++) {
if (registrations[i].observer === this) {
registration = registrations[i];
registration.removeListeners();
registration.options = options;
break;
}
}
if (!registration) {
registration = new Registration(this, target, options);
registrations.push(registration);
this.nodes_.push(target);
}
registration.addListeners();
},
disconnect: function() {
this.nodes_.forEach(function(node) {
var registrations = registrationsTable.get(node);
for (var i = 0; i < registrations.length; i++) {
var registration = registrations[i];
if (registration.observer === this) {
registration.removeListeners();
registrations.splice(i, 1);
break;
}
}
}, this);
this.records_ = [];
},
takeRecords: function() {
var copyOfRecords = this.records_;
this.records_ = [];
return copyOfRecords;
}
};
function MutationRecord(type, target) {
this.type = type;
this.target = target;
this.addedNodes = [];
this.removedNodes = [];
this.previousSibling = null;
this.nextSibling = null;
this.attributeName = null;
this.attributeNamespace = null;
this.oldValue = null;
}
function copyMutationRecord(original) {
var record = new MutationRecord(original.type, original.target);
record.addedNodes = original.addedNodes.slice();
record.removedNodes = original.removedNodes.slice();
record.previousSibling = original.previousSibling;
record.nextSibling = original.nextSibling;
record.attributeName = original.attributeName;
record.attributeNamespace = original.attributeNamespace;
record.oldValue = original.oldValue;
return record;
}
var currentRecord, recordWithOldValue;
function getRecord(type, target) {
return currentRecord = new MutationRecord(type, target);
}
function getRecordWithOldValue(oldValue) {
if (recordWithOldValue) return recordWithOldValue;
recordWithOldValue = copyMutationRecord(currentRecord);
recordWithOldValue.oldValue = oldValue;
return recordWithOldValue;
}
function clearRecords() {
currentRecord = recordWithOldValue = undefined;
}
function recordRepresentsCurrentMutation(record) {
return record === recordWithOldValue || record === currentRecord;
}
function selectRecord(lastRecord, newRecord) {
if (lastRecord === newRecord) return lastRecord;
if (recordWithOldValue && recordRepresentsCurrentMutation(lastRecord)) return recordWithOldValue;
return null;
}
function Registration(observer, target, options) {
this.observer = observer;
this.target = target;
this.options = options;
this.transientObservedNodes = [];
}
Registration.prototype = {
enqueue: function(record) {
var records = this.observer.records_;
var length = records.length;
if (records.length > 0) {
var lastRecord = records[length - 1];
var recordToReplaceLast = selectRecord(lastRecord, record);
if (recordToReplaceLast) {
records[length - 1] = recordToReplaceLast;
return;
}
} else {
scheduleCallback(this.observer);
}
records[length] = record;
},
addListeners: function() {
this.addListeners_(this.target);
},
addListeners_: function(node) {
var options = this.options;
if (options.attributes) node.addEventListener("DOMAttrModified", this, true);
if (options.characterData) node.addEventListener("DOMCharacterDataModified", this, true);
if (options.childList) node.addEventListener("DOMNodeInserted", this, true);
if (options.childList || options.subtree) node.addEventListener("DOMNodeRemoved", this, true);
},
removeListeners: function() {
this.removeListeners_(this.target);
},
removeListeners_: function(node) {
var options = this.options;
if (options.attributes) node.removeEventListener("DOMAttrModified", this, true);
if (options.characterData) node.removeEventListener("DOMCharacterDataModified", this, true);
if (options.childList) node.removeEventListener("DOMNodeInserted", this, true);
if (options.childList || options.subtree) node.removeEventListener("DOMNodeRemoved", this, true);
},
addTransientObserver: function(node) {
if (node === this.target) return;
this.addListeners_(node);
this.transientObservedNodes.push(node);
var registrations = registrationsTable.get(node);
if (!registrations) registrationsTable.set(node, registrations = []);
registrations.push(this);
},
removeTransientObservers: function() {
var transientObservedNodes = this.transientObservedNodes;
this.transientObservedNodes = [];
transientObservedNodes.forEach(function(node) {
this.removeListeners_(node);
var registrations = registrationsTable.get(node);
for (var i = 0; i < registrations.length; i++) {
if (registrations[i] === this) {
registrations.splice(i, 1);
break;
}
}
}, this);
},
handleEvent: function(e) {
e.stopImmediatePropagation();
switch (e.type) {
case "DOMAttrModified":
var name = e.attrName;
var namespace = e.relatedNode.namespaceURI;
var target = e.target;
var record = new getRecord("attributes", target);
record.attributeName = name;
record.attributeNamespace = namespace;
var oldValue = e.attrChange === MutationEvent.ADDITION ? null : e.prevValue;
forEachAncestorAndObserverEnqueueRecord(target, function(options) {
if (!options.attributes) return;
if (options.attributeFilter && options.attributeFilter.length && options.attributeFilter.indexOf(name) === -1 && options.attributeFilter.indexOf(namespace) === -1) {
return;
}
if (options.attributeOldValue) return getRecordWithOldValue(oldValue);
return record;
});
break;
case "DOMCharacterDataModified":
var target = e.target;
var record = getRecord("characterData", target);
var oldValue = e.prevValue;
forEachAncestorAndObserverEnqueueRecord(target, function(options) {
if (!options.characterData) return;
if (options.characterDataOldValue) return getRecordWithOldValue(oldValue);
return record;
});
break;
case "DOMNodeRemoved":
this.addTransientObserver(e.target);
case "DOMNodeInserted":
var changedNode = e.target;
var addedNodes, removedNodes;
if (e.type === "DOMNodeInserted") {
addedNodes = [ changedNode ];
removedNodes = [];
} else {
addedNodes = [];
removedNodes = [ changedNode ];
}
var previousSibling = changedNode.previousSibling;
var nextSibling = changedNode.nextSibling;
var record = getRecord("childList", e.target.parentNode);
record.addedNodes = addedNodes;
record.removedNodes = removedNodes;
record.previousSibling = previousSibling;
record.nextSibling = nextSibling;
forEachAncestorAndObserverEnqueueRecord(e.relatedNode, function(options) {
if (!options.childList) return;
return record;
});
}
clearRecords();
}
};
global.JsMutationObserver = JsMutationObserver;
if (!global.MutationObserver) {
global.MutationObserver = JsMutationObserver;
JsMutationObserver._isPolyfilled = true;
}
})(self);
(function(scope) {
"use strict";
if (!(window.performance && window.performance.now)) {
var start = Date.now();
window.performance = {
now: function() {
return Date.now() - start;
}
};
}
if (!window.requestAnimationFrame) {
window.requestAnimationFrame = function() {
var nativeRaf = window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame;
return nativeRaf ? function(callback) {
return nativeRaf(function() {
callback(performance.now());
});
} : function(callback) {
return window.setTimeout(callback, 1e3 / 60);
};
}();
}
if (!window.cancelAnimationFrame) {
window.cancelAnimationFrame = function() {
return window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || function(id) {
clearTimeout(id);
};
}();
}
var workingDefaultPrevented = function() {
var e = document.createEvent("Event");
e.initEvent("foo", true, true);
e.preventDefault();
return e.defaultPrevented;
}();
if (!workingDefaultPrevented) {
var origPreventDefault = Event.prototype.preventDefault;
Event.prototype.preventDefault = function() {
if (!this.cancelable) {
return;
}
origPreventDefault.call(this);
Object.defineProperty(this, "defaultPrevented", {
get: function() {
return true;
},
configurable: true
});
};
}
var isIE = /Trident/.test(navigator.userAgent);
if (!window.CustomEvent || isIE && typeof window.CustomEvent !== "function") {
window.CustomEvent = function(inType, params) {
params = params || {};
var e = document.createEvent("CustomEvent");
e.initCustomEvent(inType, Boolean(params.bubbles), Boolean(params.cancelable), params.detail);
return e;
};
window.CustomEvent.prototype = window.Event.prototype;
}
if (!window.Event || isIE && typeof window.Event !== "function") {
var origEvent = window.Event;
window.Event = function(inType, params) {
params = params || {};
var e = document.createEvent("Event");
e.initEvent(inType, Boolean(params.bubbles), Boolean(params.cancelable));
return e;
};
window.Event.prototype = origEvent.prototype;
}
})(window.WebComponents);
window.CustomElements = window.CustomElements || {
flags: {}
};
(function(scope) {
var flags = scope.flags;
var modules = [];
var addModule = function(module) {
modules.push(module);
};
var initializeModules = function() {
modules.forEach(function(module) {
module(scope);
});
};
scope.addModule = addModule;
scope.initializeModules = initializeModules;
scope.hasNative = Boolean(document.registerElement);
scope.isIE = /Trident/.test(navigator.userAgent);
scope.useNative = !flags.register && scope.hasNative && !window.ShadowDOMPolyfill && (!window.HTMLImports || window.HTMLImports.useNative);
})(window.CustomElements);
window.CustomElements.addModule(function(scope) {
var IMPORT_LINK_TYPE = window.HTMLImports ? window.HTMLImports.IMPORT_LINK_TYPE : "none";
function forSubtree(node, cb) {
findAllElements(node, function(e) {
if (cb(e)) {
return true;
}
forRoots(e, cb);
});
forRoots(node, cb);
}
function findAllElements(node, find, data) {
var e = node.firstElementChild;
if (!e) {
e = node.firstChild;
while (e && e.nodeType !== Node.ELEMENT_NODE) {
e = e.nextSibling;
}
}
while (e) {
if (find(e, data) !== true) {
findAllElements(e, find, data);
}
e = e.nextElementSibling;
}
return null;
}
function forRoots(node, cb) {
var root = node.shadowRoot;
while (root) {
forSubtree(root, cb);
root = root.olderShadowRoot;
}
}
function forDocumentTree(doc, cb) {
_forDocumentTree(doc, cb, []);
}
function _forDocumentTree(doc, cb, processingDocuments) {
doc = window.wrap(doc);
if (processingDocuments.indexOf(doc) >= 0) {
return;
}
processingDocuments.push(doc);
var imports = doc.querySelectorAll("link[rel=" + IMPORT_LINK_TYPE + "]");
for (var i = 0, l = imports.length, n; i < l && (n = imports[i]); i++) {
if (n.import) {
_forDocumentTree(n.import, cb, processingDocuments);
}
}
cb(doc);
}
scope.forDocumentTree = forDocumentTree;
scope.forSubtree = forSubtree;
});
window.CustomElements.addModule(function(scope) {
var flags = scope.flags;
var forSubtree = scope.forSubtree;
var forDocumentTree = scope.forDocumentTree;
function addedNode(node, isAttached) {
return added(node, isAttached) || addedSubtree(node, isAttached);
}
function added(node, isAttached) {
if (scope.upgrade(node, isAttached)) {
return true;
}
if (isAttached) {
attached(node);
}
}
function addedSubtree(node, isAttached) {
forSubtree(node, function(e) {
if (added(e, isAttached)) {
return true;
}
});
}
var hasThrottledAttached = window.MutationObserver._isPolyfilled && flags["throttle-attached"];
scope.hasPolyfillMutations = hasThrottledAttached;
scope.hasThrottledAttached = hasThrottledAttached;
var isPendingMutations = false;
var pendingMutations = [];
function deferMutation(fn) {
pendingMutations.push(fn);
if (!isPendingMutations) {
isPendingMutations = true;
setTimeout(takeMutations);
}
}
function takeMutations() {
isPendingMutations = false;
var $p = pendingMutations;
for (var i = 0, l = $p.length, p; i < l && (p = $p[i]); i++) {
p();
}
pendingMutations = [];
}
function attached(element) {
if (hasThrottledAttached) {
deferMutation(function() {
_attached(element);
});
} else {
_attached(element);
}
}
function _attached(element) {
if (element.__upgraded__ && !element.__attached) {
element.__attached = true;
if (element.attachedCallback) {
element.attachedCallback();
}
}
}
function detachedNode(node) {
detached(node);
forSubtree(node, function(e) {
detached(e);
});
}
function detached(element) {
if (hasThrottledAttached) {
deferMutation(function() {
_detached(element);
});
} else {
_detached(element);
}
}
function _detached(element) {
if (element.__upgraded__ && element.__attached) {
element.__attached = false;
if (element.detachedCallback) {
element.detachedCallback();
}
}
}
function inDocument(element) {
var p = element;
var doc = window.wrap(document);
while (p) {
if (p == doc) {
return true;
}
p = p.parentNode || p.nodeType === Node.DOCUMENT_FRAGMENT_NODE && p.host;
}
}
function watchShadow(node) {
if (node.shadowRoot && !node.shadowRoot.__watched) {
flags.dom && console.log("watching shadow-root for: ", node.localName);
var root = node.shadowRoot;
while (root) {
observe(root);
root = root.olderShadowRoot;
}
}
}
function handler(root, mutations) {
if (flags.dom) {
var mx = mutations[0];
if (mx && mx.type === "childList" && mx.addedNodes) {
if (mx.addedNodes) {
var d = mx.addedNodes[0];
while (d && d !== document && !d.host) {
d = d.parentNode;
}
var u = d && (d.URL || d._URL || d.host && d.host.localName) || "";
u = u.split("/?").shift().split("/").pop();
}
}
console.group("mutations (%d) [%s]", mutations.length, u || "");
}
var isAttached = inDocument(root);
mutations.forEach(function(mx) {
if (mx.type === "childList") {
forEach(mx.addedNodes, function(n) {
if (!n.localName) {
return;
}
addedNode(n, isAttached);
});
forEach(mx.removedNodes, function(n) {
if (!n.localName) {
return;
}
detachedNode(n);
});
}
});
flags.dom && console.groupEnd();
}
function takeRecords(node) {
node = window.wrap(node);
if (!node) {
node = window.wrap(document);
}
while (node.parentNode) {
node = node.parentNode;
}
var observer = node.__observer;
if (observer) {
handler(node, observer.takeRecords());
takeMutations();
}
}
var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
function observe(inRoot) {
if (inRoot.__observer) {
return;
}
var observer = new MutationObserver(handler.bind(this, inRoot));
observer.observe(inRoot, {
childList: true,
subtree: true
});
inRoot.__observer = observer;
}
function upgradeDocument(doc) {
doc = window.wrap(doc);
flags.dom && console.group("upgradeDocument: ", doc.baseURI.split("/").pop());
var isMainDocument = doc === window.wrap(document);
addedNode(doc, isMainDocument);
observe(doc);
flags.dom && console.groupEnd();
}
function upgradeDocumentTree(doc) {
forDocumentTree(doc, upgradeDocument);
}
var originalCreateShadowRoot = Element.prototype.createShadowRoot;
if (originalCreateShadowRoot) {
Element.prototype.createShadowRoot = function() {
var root = originalCreateShadowRoot.call(this);
window.CustomElements.watchShadow(this);
return root;
};
}
scope.watchShadow = watchShadow;
scope.upgradeDocumentTree = upgradeDocumentTree;
scope.upgradeDocument = upgradeDocument;
scope.upgradeSubtree = addedSubtree;
scope.upgradeAll = addedNode;
scope.attached = attached;
scope.takeRecords = takeRecords;
});
window.CustomElements.addModule(function(scope) {
var flags = scope.flags;
function upgrade(node, isAttached) {
if (node.localName === "template") {
if (window.HTMLTemplateElement && HTMLTemplateElement.decorate) {
HTMLTemplateElement.decorate(node);
}
}
if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {
var is = node.getAttribute("is");
var definition = scope.getRegisteredDefinition(node.localName) || scope.getRegisteredDefinition(is);
if (definition) {
if (is && definition.tag == node.localName || !is && !definition.extends) {
return upgradeWithDefinition(node, definition, isAttached);
}
}
}
}
function upgradeWithDefinition(element, definition, isAttached) {
flags.upgrade && console.group("upgrade:", element.localName);
if (definition.is) {
element.setAttribute("is", definition.is);
}
implementPrototype(element, definition);
element.__upgraded__ = true;
created(element);
if (isAttached) {
scope.attached(element);
}
scope.upgradeSubtree(element, isAttached);
flags.upgrade && console.groupEnd();
return element;
}
function implementPrototype(element, definition) {
if (Object.__proto__) {
element.__proto__ = definition.prototype;
} else {
customMixin(element, definition.prototype, definition.native);
element.__proto__ = definition.prototype;
}
}
function customMixin(inTarget, inSrc, inNative) {
var used = {};
var p = inSrc;
while (p !== inNative && p !== HTMLElement.prototype) {
var keys = Object.getOwnPropertyNames(p);
for (var i = 0, k; k = keys[i]; i++) {
if (!used[k]) {
Object.defineProperty(inTarget, k, Object.getOwnPropertyDescriptor(p, k));
used[k] = 1;
}
}
p = Object.getPrototypeOf(p);
}
}
function created(element) {
if (element.createdCallback) {
element.createdCallback();
}
}
scope.upgrade = upgrade;
scope.upgradeWithDefinition = upgradeWithDefinition;
scope.implementPrototype = implementPrototype;
});
window.CustomElements.addModule(function(scope) {
var isIE = scope.isIE;
var upgradeDocumentTree = scope.upgradeDocumentTree;
var upgradeAll = scope.upgradeAll;
var upgradeWithDefinition = scope.upgradeWithDefinition;
var implementPrototype = scope.implementPrototype;
var useNative = scope.useNative;
function register(name, options) {
var definition = options || {};
if (!name) {
throw new Error("document.registerElement: first argument `name` must not be empty");
}
if (name.indexOf("-") < 0) {
throw new Error("document.registerElement: first argument ('name') must contain a dash ('-'). Argument provided was '" + String(name) + "'.");
}
if (isReservedTag(name)) {
throw new Error("Failed to execute 'registerElement' on 'Document': Registration failed for type '" + String(name) + "'. The type name is invalid.");
}
if (getRegisteredDefinition(name)) {
throw new Error("DuplicateDefinitionError: a type with name '" + String(name) + "' is already registered");
}
if (!definition.prototype) {
definition.prototype = Object.create(HTMLElement.prototype);
}
definition.__name = name.toLowerCase();
if (definition.extends) {
definition.extends = definition.extends.toLowerCase();
}
definition.lifecycle = definition.lifecycle || {};
definition.ancestry = ancestry(definition.extends);
resolveTagName(definition);
resolvePrototypeChain(definition);
overrideAttributeApi(definition.prototype);
registerDefinition(definition.__name, definition);
definition.ctor = generateConstructor(definition);
definition.ctor.prototype = definition.prototype;
definition.prototype.constructor = definition.ctor;
if (scope.ready) {
upgradeDocumentTree(document);
}
return definition.ctor;
}
function overrideAttributeApi(prototype) {
if (prototype.setAttribute._polyfilled) {
return;
}
var setAttribute = prototype.setAttribute;
prototype.setAttribute = function(name, value) {
changeAttribute.call(this, name, value, setAttribute);
};
var removeAttribute = prototype.removeAttribute;
prototype.removeAttribute = function(name) {
changeAttribute.call(this, name, null, removeAttribute);
};
prototype.setAttribute._polyfilled = true;
}
function changeAttribute(name, value, operation) {
name = name.toLowerCase();
var oldValue = this.getAttribute(name);
operation.apply(this, arguments);
var newValue = this.getAttribute(name);
if (this.attributeChangedCallback && newValue !== oldValue) {
this.attributeChangedCallback(name, oldValue, newValue);
}
}
function isReservedTag(name) {
for (var i = 0; i < reservedTagList.length; i++) {
if (name === reservedTagList[i]) {
return true;
}
}
}
var reservedTagList = [ "annotation-xml", "color-profile", "font-face", "font-face-src", "font-face-uri", "font-face-format", "font-face-name", "missing-glyph" ];
function ancestry(extnds) {
var extendee = getRegisteredDefinition(extnds);
if (extendee) {
return ancestry(extendee.extends).concat([ extendee ]);
}
return [];
}
function resolveTagName(definition) {
var baseTag = definition.extends;
for (var i = 0, a; a = definition.ancestry[i]; i++) {
baseTag = a.is && a.tag;
}
definition.tag = baseTag || definition.__name;
if (baseTag) {
definition.is = definition.__name;
}
}
function resolvePrototypeChain(definition) {
if (!Object.__proto__) {
var nativePrototype = HTMLElement.prototype;
if (definition.is) {
var inst = document.createElement(definition.tag);
nativePrototype = Object.getPrototypeOf(inst);
}
var proto = definition.prototype, ancestor;
var foundPrototype = false;
while (proto) {
if (proto == nativePrototype) {
foundPrototype = true;
}
ancestor = Object.getPrototypeOf(proto);
if (ancestor) {
proto.__proto__ = ancestor;
}
proto = ancestor;
}
if (!foundPrototype) {
console.warn(definition.tag + " prototype not found in prototype chain for " + definition.is);
}
definition.native = nativePrototype;
}
}
function instantiate(definition) {
return upgradeWithDefinition(domCreateElement(definition.tag), definition);
}
var registry = {};
function getRegisteredDefinition(name) {
if (name) {
return registry[name.toLowerCase()];
}
}
function registerDefinition(name, definition) {
registry[name] = definition;
}
function generateConstructor(definition) {
return function() {
return instantiate(definition);
};
}
var HTML_NAMESPACE = "http://www.w3.org/1999/xhtml";
function createElementNS(namespace, tag, typeExtension) {
if (namespace === HTML_NAMESPACE) {
return createElement(tag, typeExtension);
} else {
return domCreateElementNS(namespace, tag);
}
}
function createElement(tag, typeExtension) {
if (tag) {
tag = tag.toLowerCase();
}
if (typeExtension) {
typeExtension = typeExtension.toLowerCase();
}
var definition = getRegisteredDefinition(typeExtension || tag);
if (definition) {
if (tag == definition.tag && typeExtension == definition.is) {
return new definition.ctor();
}
if (!typeExtension && !definition.is) {
return new definition.ctor();
}
}
var element;
if (typeExtension) {
element = createElement(tag);
element.setAttribute("is", typeExtension);
return element;
}
element = domCreateElement(tag);
if (tag.indexOf("-") >= 0) {
implementPrototype(element, HTMLElement);
}
return element;
}
var domCreateElement = document.createElement.bind(document);
var domCreateElementNS = document.createElementNS.bind(document);
var isInstance;
if (!Object.__proto__ && !useNative) {
isInstance = function(obj, ctor) {
if (obj instanceof ctor) {
return true;
}
var p = obj;
while (p) {
if (p === ctor.prototype) {
return true;
}
p = p.__proto__;
}
return false;
};
} else {
isInstance = function(obj, base) {
return obj instanceof base;
};
}
function wrapDomMethodToForceUpgrade(obj, methodName) {
var orig = obj[methodName];
obj[methodName] = function() {
var n = orig.apply(this, arguments);
upgradeAll(n);
return n;
};
}
wrapDomMethodToForceUpgrade(Node.prototype, "cloneNode");
wrapDomMethodToForceUpgrade(document, "importNode");
document.registerElement = register;
document.createElement = createElement;
document.createElementNS = createElementNS;
scope.registry = registry;
scope.instanceof = isInstance;
scope.reservedTagList = reservedTagList;
scope.getRegisteredDefinition = getRegisteredDefinition;
document.register = document.registerElement;
});
(function(scope) {
var useNative = scope.useNative;
var initializeModules = scope.initializeModules;
var isIE = scope.isIE;
if (useNative) {
var nop = function() {};
scope.watchShadow = nop;
scope.upgrade = nop;
scope.upgradeAll = nop;
scope.upgradeDocumentTree = nop;
scope.upgradeSubtree = nop;
scope.takeRecords = nop;
scope.instanceof = function(obj, base) {
return obj instanceof base;
};
} else {
initializeModules();
}
var upgradeDocumentTree = scope.upgradeDocumentTree;
var upgradeDocument = scope.upgradeDocument;
if (!window.wrap) {
if (window.ShadowDOMPolyfill) {
window.wrap = window.ShadowDOMPolyfill.wrapIfNeeded;
window.unwrap = window.ShadowDOMPolyfill.unwrapIfNeeded;
} else {
window.wrap = window.unwrap = function(node) {
return node;
};
}
}
if (window.HTMLImports) {
window.HTMLImports.__importsParsingHook = function(elt) {
if (elt.import) {
upgradeDocument(wrap(elt.import));
}
};
}
function bootstrap() {
upgradeDocumentTree(window.wrap(document));
window.CustomElements.ready = true;
var requestAnimationFrame = window.requestAnimationFrame || function(f) {
setTimeout(f, 16);
};
requestAnimationFrame(function() {
setTimeout(function() {
window.CustomElements.readyTime = Date.now();
if (window.HTMLImports) {
window.CustomElements.elapsed = window.CustomElements.readyTime - window.HTMLImports.readyTime;
}
document.dispatchEvent(new CustomEvent("WebComponentsReady", {
bubbles: true
}));
});
});
}
if (document.readyState === "complete" || scope.flags.eager) {
bootstrap();
} else if (document.readyState === "interactive" && !window.attachEvent && (!window.HTMLImports || window.HTMLImports.ready)) {
bootstrap();
} else {
var loadEvent = window.HTMLImports && !window.HTMLImports.ready ? "HTMLImportsLoaded" : "DOMContentLoaded";
window.addEventListener(loadEvent, bootstrap);
}
})(window.CustomElements);© 2015 - 2024 Weber Informatics LLC | Privacy Policy