terry@google.com
3fb3eb8d3a
BUG= R=jmesserly@google.com Review URL: https://codereview.chromium.org//22951003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@26231 260f80e4-7a28-3924-810f-c04153c831b5
3731 lines
110 KiB
JavaScript
3731 lines
110 KiB
JavaScript
if ((!HTMLElement.prototype.createShadowRoot &&
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!HTMLElement.prototype.webkitCreateShadowRoot) ||
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window.__forceShadowDomPolyfill) {
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/*
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* Copyright 2013 The Polymer Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style
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* license that can be found in the LICENSE file.
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*/
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(function() {
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// TODO(jmesserly): fix dart:html to use unprefixed name
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if (Element.prototype.webkitCreateShadowRoot) {
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Element.prototype.webkitCreateShadowRoot = function() {
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return window.ShadowDOMPolyfill.wrapIfNeeded(this).createShadowRoot();
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};
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}
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})();
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/*
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* Copyright 2012 The Polymer Authors. All rights reserved.
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* Use of this source code is goverened by a BSD-style
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* license that can be found in the LICENSE file.
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*/
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// SideTable is a weak map where possible. If WeakMap is not available the
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// association is stored as an expando property.
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var SideTable;
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// TODO(arv): WeakMap does not allow for Node etc to be keys in Firefox
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if (typeof WeakMap !== 'undefined' && navigator.userAgent.indexOf('Firefox/') < 0) {
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SideTable = WeakMap;
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} else {
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(function() {
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var defineProperty = Object.defineProperty;
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var hasOwnProperty = Object.hasOwnProperty;
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var counter = new Date().getTime() % 1e9;
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SideTable = function() {
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this.name = '__st' + (Math.random() * 1e9 >>> 0) + (counter++ + '__');
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};
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SideTable.prototype = {
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set: function(key, value) {
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defineProperty(key, this.name, {value: value, writable: true});
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},
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get: function(key) {
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return hasOwnProperty.call(key, this.name) ? key[this.name] : undefined;
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},
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delete: function(key) {
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this.set(key, undefined);
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}
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}
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})();
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}
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// Copyright 2012 The Polymer Authors. All rights reserved.
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// Use of this source code is goverened by a BSD-style
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// license that can be found in the LICENSE file.
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var ShadowDOMPolyfill = {};
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(function(scope) {
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'use strict';
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var wrapperTable = new SideTable();
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var constructorTable = new SideTable();
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var wrappers = Object.create(null);
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function assert(b) {
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if (!b)
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throw new Error('Assertion failed');
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};
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function mixin(to, from) {
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Object.getOwnPropertyNames(from).forEach(function(name) {
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Object.defineProperty(to, name,
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Object.getOwnPropertyDescriptor(from, name));
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});
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return to;
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};
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function mixinStatics(to, from) {
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Object.getOwnPropertyNames(from).forEach(function(name) {
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switch (name) {
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case 'arguments':
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case 'caller':
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case 'length':
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case 'name':
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case 'prototype':
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case 'toString':
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return;
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}
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Object.defineProperty(to, name,
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Object.getOwnPropertyDescriptor(from, name));
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});
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return to;
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};
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// Mozilla's old DOM bindings are bretty busted:
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// https://bugzilla.mozilla.org/show_bug.cgi?id=855844
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// Make sure they are create before we start modifying things.
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Object.getOwnPropertyNames(window);
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function getWrapperConstructor(node) {
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var nativePrototype = node.__proto__ || Object.getPrototypeOf(node);
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var wrapperConstructor = constructorTable.get(nativePrototype);
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if (wrapperConstructor)
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return wrapperConstructor;
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var parentWrapperConstructor = getWrapperConstructor(nativePrototype);
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var GeneratedWrapper = createWrapperConstructor(parentWrapperConstructor);
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registerInternal(nativePrototype, GeneratedWrapper, node);
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return GeneratedWrapper;
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}
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function addForwardingProperties(nativePrototype, wrapperPrototype) {
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installProperty(nativePrototype, wrapperPrototype, true);
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}
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function registerInstanceProperties(wrapperPrototype, instanceObject) {
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installProperty(instanceObject, wrapperPrototype, false);
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}
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var isFirefox = /Firefox/.test(navigator.userAgent);
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// This is used as a fallback when getting the descriptor fails in
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// installProperty.
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var dummyDescriptor = {
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get: function() {},
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set: function(v) {},
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configurable: true,
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enumerable: true
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};
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function installProperty(source, target, allowMethod) {
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Object.getOwnPropertyNames(source).forEach(function(name) {
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if (name in target)
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return;
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if (isFirefox) {
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// Tickle Firefox's old bindings.
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source.__lookupGetter__(name);
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}
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var descriptor;
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try {
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descriptor = Object.getOwnPropertyDescriptor(source, name);
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} catch (ex) {
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// JSC and V8 both use data properties instead accessors which can cause
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// getting the property desciptor throw an exception.
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// https://bugs.webkit.org/show_bug.cgi?id=49739
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descriptor = dummyDescriptor;
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}
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var getter, setter;
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if (allowMethod && typeof descriptor.value === 'function') {
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target[name] = function() {
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return this.impl[name].apply(this.impl, arguments);
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};
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return;
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}
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getter = function() {
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return this.impl[name];
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};
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if (descriptor.writable || descriptor.set) {
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setter = function(value) {
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this.impl[name] = value;
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};
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}
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Object.defineProperty(target, name, {
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get: getter,
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set: setter,
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configurable: descriptor.configurable,
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enumerable: descriptor.enumerable
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});
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});
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}
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/**
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* @param {Function} nativeConstructor
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* @param {Function} wrapperConstructor
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* @param {string|Object=} opt_instance If present, this is used to extract
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* properties from an instance object. If this is a string
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* |document.createElement| is used to create an instance.
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*/
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function register(nativeConstructor, wrapperConstructor, opt_instance) {
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var nativePrototype = nativeConstructor.prototype;
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registerInternal(nativePrototype, wrapperConstructor, opt_instance);
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mixinStatics(wrapperConstructor, nativeConstructor);
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}
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function registerInternal(nativePrototype, wrapperConstructor, opt_instance) {
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var wrapperPrototype = wrapperConstructor.prototype;
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assert(constructorTable.get(nativePrototype) === undefined);
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constructorTable.set(nativePrototype, wrapperConstructor);
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addForwardingProperties(nativePrototype, wrapperPrototype);
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if (opt_instance)
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registerInstanceProperties(wrapperPrototype, opt_instance);
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}
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function isWrapperFor(wrapperConstructor, nativeConstructor) {
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return constructorTable.get(nativeConstructor.prototype) ===
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wrapperConstructor;
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}
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/**
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* Creates a generic wrapper constructor based on |object| and its
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* constructor.
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* Sometimes the constructor does not have an associated instance
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* (CharacterData for example). In that case you can pass the constructor that
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* you want to map the object to using |opt_nativeConstructor|.
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* @param {Node} object
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* @param {Function=} opt_nativeConstructor
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* @return {Function} The generated constructor.
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*/
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function registerObject(object) {
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var nativePrototype = Object.getPrototypeOf(object);
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var superWrapperConstructor = getWrapperConstructor(nativePrototype);
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var GeneratedWrapper = createWrapperConstructor(superWrapperConstructor);
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registerInternal(nativePrototype, GeneratedWrapper, object);
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return GeneratedWrapper;
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}
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function createWrapperConstructor(superWrapperConstructor) {
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function GeneratedWrapper(node) {
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superWrapperConstructor.call(this, node);
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}
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GeneratedWrapper.prototype =
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Object.create(superWrapperConstructor.prototype);
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GeneratedWrapper.prototype.constructor = GeneratedWrapper;
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// We add this property to work around a Firefox bug where HTMLFormElement
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// and HTMLInputElements sometimes have their constructor incorrectly
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// attached to GeneratedWrapper. See lib/patches-shadowdom-polyfill.js
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GeneratedWrapper._ShadowDOMPolyfill$isGeneratedWrapper = true;
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return GeneratedWrapper;
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}
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var OriginalDOMImplementation = DOMImplementation;
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var OriginalEvent = Event;
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var OriginalNode = Node;
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var OriginalWindow = Window;
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function isWrapper(object) {
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return object instanceof wrappers.EventTarget ||
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object instanceof wrappers.Event ||
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object instanceof wrappers.DOMImplementation;
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}
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function isNative(object) {
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return object instanceof OriginalNode ||
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object instanceof OriginalEvent ||
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object instanceof OriginalWindow ||
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object instanceof OriginalDOMImplementation;
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}
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/**
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* Wraps a node in a WrapperNode. If there already exists a wrapper for the
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* |node| that wrapper is returned instead.
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* @param {Node} node
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* @return {WrapperNode}
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*/
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function wrap(impl) {
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if (impl === null)
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return null;
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assert(isNative(impl));
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var wrapper = wrapperTable.get(impl);
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if (!wrapper) {
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var wrapperConstructor = getWrapperConstructor(impl);
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wrapper = new wrapperConstructor(impl);
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wrapperTable.set(impl, wrapper);
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}
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return wrapper;
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}
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/**
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* Unwraps a wrapper and returns the node it is wrapping.
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* @param {WrapperNode} wrapper
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* @return {Node}
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*/
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function unwrap(wrapper) {
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if (wrapper === null)
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return null;
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assert(isWrapper(wrapper));
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return wrapper.impl;
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}
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/**
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* Unwraps object if it is a wrapper.
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* @param {Object} object
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* @return {Object} The native implementation object.
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*/
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function unwrapIfNeeded(object) {
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return object && isWrapper(object) ? unwrap(object) : object;
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}
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/**
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* Wraps object if it is not a wrapper.
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* @param {Object} object
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* @return {Object} The wrapper for object.
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*/
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function wrapIfNeeded(object) {
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return object && !isWrapper(object) ? wrap(object) : object;
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}
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/**
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* Overrides the current wrapper (if any) for node.
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* @param {Node} node
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* @param {WrapperNode=} wrapper If left out the wrapper will be created as
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* needed next time someone wraps the node.
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*/
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function rewrap(node, wrapper) {
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if (wrapper === null)
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return;
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assert(isNative(node));
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assert(wrapper === undefined || isWrapper(wrapper));
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wrapperTable.set(node, wrapper);
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}
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function defineGetter(constructor, name, getter) {
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Object.defineProperty(constructor.prototype, name, {
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get: getter,
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configurable: true,
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enumerable: true
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});
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}
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function defineWrapGetter(constructor, name) {
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defineGetter(constructor, name, function() {
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return wrap(this.impl[name]);
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});
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}
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/**
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* Forwards existing methods on the native object to the wrapper methods.
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* This does not wrap any of the arguments or the return value since the
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* wrapper implementation already takes care of that.
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* @param {Array.<Function>} constructors
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* @parem {Array.<string>} names
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*/
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function forwardMethodsToWrapper(constructors, names) {
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constructors.forEach(function(constructor) {
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names.forEach(function(name) {
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constructor.prototype[name] = function() {
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var w = wrap(this);
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return w[name].apply(w, arguments);
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};
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});
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});
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}
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scope.assert = assert;
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scope.defineGetter = defineGetter;
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scope.defineWrapGetter = defineWrapGetter;
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scope.forwardMethodsToWrapper = forwardMethodsToWrapper;
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scope.isWrapper = isWrapper;
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scope.isWrapperFor = isWrapperFor;
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scope.mixin = mixin;
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scope.registerObject = registerObject;
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scope.registerWrapper = register;
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scope.rewrap = rewrap;
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scope.unwrap = unwrap;
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scope.unwrapIfNeeded = unwrapIfNeeded;
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scope.wrap = wrap;
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scope.wrapIfNeeded = wrapIfNeeded;
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scope.wrappers = wrappers;
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})(this.ShadowDOMPolyfill);
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// Copyright 2013 The Polymer Authors. All rights reserved.
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// Use of this source code is goverened by a BSD-style
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// license that can be found in the LICENSE file.
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(function(scope) {
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'use strict';
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var forwardMethodsToWrapper = scope.forwardMethodsToWrapper;
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var mixin = scope.mixin;
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var registerWrapper = scope.registerWrapper;
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var unwrap = scope.unwrap;
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var wrap = scope.wrap;
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var wrappers = scope.wrappers;
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var wrappedFuns = new SideTable();
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var listenersTable = new SideTable();
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var handledEventsTable = new SideTable();
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var targetTable = new SideTable();
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var currentTargetTable = new SideTable();
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var relatedTargetTable = new SideTable();
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var eventPhaseTable = new SideTable();
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var stopPropagationTable = new SideTable();
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var stopImmediatePropagationTable = new SideTable();
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function isShadowRoot(node) {
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return node instanceof wrappers.ShadowRoot;
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}
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function isInsertionPoint(node) {
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var localName = node.localName;
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return localName === 'content' || localName === 'shadow';
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}
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function isShadowHost(node) {
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return !!node.shadowRoot;
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}
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function getEventParent(node) {
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var dv;
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return node.parentNode || (dv = node.defaultView) && wrap(dv) || null;
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}
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// https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-adjusted-parent
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function calculateParents(node, context, ancestors) {
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if (ancestors.length)
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return ancestors.shift();
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// 1.
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if (isShadowRoot(node))
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return node.insertionParent || scope.getHostForShadowRoot(node);
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// 2.
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var eventParents = scope.eventParentsTable.get(node);
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if (eventParents) {
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// Copy over the remaining event parents for next iteration.
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for (var i = 1; i < eventParents.length; i++) {
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ancestors[i - 1] = eventParents[i];
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}
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return eventParents[0];
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}
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// 3.
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if (context && isInsertionPoint(node)) {
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var parentNode = node.parentNode;
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if (parentNode && isShadowHost(parentNode)) {
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var trees = scope.getShadowTrees(parentNode);
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var p = context.insertionParent;
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for (var i = 0; i < trees.length; i++) {
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if (trees[i].contains(p))
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return p;
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}
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}
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}
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return getEventParent(node);
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}
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// https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#event-retargeting
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function retarget(node) {
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var stack = []; // 1.
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var ancestor = node; // 2.
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var targets = [];
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var ancestors = [];
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while (ancestor) { // 3.
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var context = null; // 3.2.
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// TODO(arv): Change order of these. If the stack is empty we always end
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// up pushing ancestor, no matter what.
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if (isInsertionPoint(ancestor)) { // 3.1.
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context = topMostNotInsertionPoint(stack); // 3.1.1.
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var top = stack[stack.length - 1] || ancestor; // 3.1.2.
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stack.push(top);
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} else if (!stack.length) {
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stack.push(ancestor); // 3.3.
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}
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var target = stack[stack.length - 1]; // 3.4.
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targets.push({target: target, currentTarget: ancestor}); // 3.5.
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if (isShadowRoot(ancestor)) // 3.6.
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stack.pop(); // 3.6.1.
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ancestor = calculateParents(ancestor, context, ancestors); // 3.7.
|
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}
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return targets;
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}
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|
|
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function topMostNotInsertionPoint(stack) {
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for (var i = stack.length - 1; i >= 0; i--) {
|
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if (!isInsertionPoint(stack[i]))
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return stack[i];
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}
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return null;
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}
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|
|
|
// https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-adjusted-related-target
|
|
function adjustRelatedTarget(target, related) {
|
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var ancestors = [];
|
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while (target) { // 3.
|
|
var stack = []; // 3.1.
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var ancestor = related; // 3.2.
|
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var last = undefined; // 3.3. Needs to be reset every iteration.
|
|
while (ancestor) {
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|
var context = null;
|
|
if (!stack.length) {
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stack.push(ancestor);
|
|
} else {
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|
if (isInsertionPoint(ancestor)) { // 3.4.3.
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|
context = topMostNotInsertionPoint(stack);
|
|
// isDistributed is more general than checking whether last is
|
|
// assigned into ancestor.
|
|
if (isDistributed(last)) { // 3.4.3.2.
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|
var head = stack[stack.length - 1];
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|
stack.push(head);
|
|
}
|
|
}
|
|
}
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|
|
|
if (inSameTree(ancestor, target)) // 3.4.4.
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|
return stack[stack.length - 1];
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|
|
if (isShadowRoot(ancestor)) // 3.4.5.
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|
stack.pop();
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last = ancestor; // 3.4.6.
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|
ancestor = calculateParents(ancestor, context, ancestors); // 3.4.7.
|
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}
|
|
if (isShadowRoot(target)) // 3.5.
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|
target = scope.getHostForShadowRoot(target);
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|
else
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|
target = target.parentNode; // 3.6.
|
|
}
|
|
}
|
|
|
|
function isDistributed(node) {
|
|
return node.insertionParent;
|
|
}
|
|
|
|
function rootOfNode(node) {
|
|
var p;
|
|
while (p = node.parentNode) {
|
|
node = p;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
function inSameTree(a, b) {
|
|
return rootOfNode(a) === rootOfNode(b);
|
|
}
|
|
|
|
function isMutationEvent(type) {
|
|
switch (type) {
|
|
case 'DOMAttrModified':
|
|
case 'DOMAttributeNameChanged':
|
|
case 'DOMCharacterDataModified':
|
|
case 'DOMElementNameChanged':
|
|
case 'DOMNodeInserted':
|
|
case 'DOMNodeInsertedIntoDocument':
|
|
case 'DOMNodeRemoved':
|
|
case 'DOMNodeRemovedFromDocument':
|
|
case 'DOMSubtreeModified':
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function dispatchOriginalEvent(originalEvent) {
|
|
// Make sure this event is only dispatched once.
|
|
if (handledEventsTable.get(originalEvent))
|
|
return;
|
|
handledEventsTable.set(originalEvent, true);
|
|
|
|
// Don't do rendering if this is a mutation event since rendering might
|
|
// mutate the DOM which would fire more events and we would most likely
|
|
// just iloop.
|
|
if (!isMutationEvent(originalEvent.type))
|
|
scope.renderAllPending();
|
|
|
|
var target = wrap(originalEvent.target);
|
|
var event = wrap(originalEvent);
|
|
return dispatchEvent(event, target);
|
|
}
|
|
|
|
function dispatchEvent(event, originalWrapperTarget) {
|
|
var eventPath = retarget(originalWrapperTarget);
|
|
|
|
// For window load events the load event is dispatched at the window but
|
|
// the target is set to the document.
|
|
//
|
|
// http://www.whatwg.org/specs/web-apps/current-work/multipage/the-end.html#the-end
|
|
//
|
|
// TODO(arv): Find a loess hacky way to do this.
|
|
if (event.type === 'load' &&
|
|
eventPath.length === 2 &&
|
|
eventPath[0].target instanceof wrappers.Document) {
|
|
eventPath.shift();
|
|
}
|
|
|
|
if (dispatchCapturing(event, eventPath)) {
|
|
if (dispatchAtTarget(event, eventPath)) {
|
|
dispatchBubbling(event, eventPath);
|
|
}
|
|
}
|
|
|
|
eventPhaseTable.set(event, Event.NONE);
|
|
currentTargetTable.set(event, null);
|
|
|
|
return event.defaultPrevented;
|
|
}
|
|
|
|
function dispatchCapturing(event, eventPath) {
|
|
var phase;
|
|
|
|
for (var i = eventPath.length - 1; i > 0; i--) {
|
|
var target = eventPath[i].target;
|
|
var currentTarget = eventPath[i].currentTarget;
|
|
if (target === currentTarget)
|
|
continue;
|
|
|
|
phase = Event.CAPTURING_PHASE;
|
|
if (!invoke(eventPath[i], event, phase))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function dispatchAtTarget(event, eventPath) {
|
|
var phase = Event.AT_TARGET;
|
|
return invoke(eventPath[0], event, phase);
|
|
}
|
|
|
|
function dispatchBubbling(event, eventPath) {
|
|
var bubbles = event.bubbles;
|
|
var phase;
|
|
|
|
for (var i = 1; i < eventPath.length; i++) {
|
|
var target = eventPath[i].target;
|
|
var currentTarget = eventPath[i].currentTarget;
|
|
if (target === currentTarget)
|
|
phase = Event.AT_TARGET;
|
|
else if (bubbles && !stopImmediatePropagationTable.get(event))
|
|
phase = Event.BUBBLING_PHASE;
|
|
else
|
|
continue;
|
|
|
|
if (!invoke(eventPath[i], event, phase))
|
|
return;
|
|
}
|
|
}
|
|
|
|
function invoke(tuple, event, phase) {
|
|
var target = tuple.target;
|
|
var currentTarget = tuple.currentTarget;
|
|
|
|
var listeners = listenersTable.get(currentTarget);
|
|
if (!listeners)
|
|
return true;
|
|
|
|
if ('relatedTarget' in event) {
|
|
var originalEvent = unwrap(event);
|
|
var relatedTarget = wrap(originalEvent.relatedTarget);
|
|
|
|
var adjusted = adjustRelatedTarget(currentTarget, relatedTarget);
|
|
if (adjusted === target)
|
|
return true;
|
|
|
|
relatedTargetTable.set(event, adjusted);
|
|
}
|
|
|
|
eventPhaseTable.set(event, phase);
|
|
var type = event.type;
|
|
|
|
var anyRemoved = false;
|
|
targetTable.set(event, target);
|
|
currentTargetTable.set(event, currentTarget);
|
|
|
|
for (var i = 0; i < listeners.length; i++) {
|
|
var listener = listeners[i];
|
|
if (listener.removed) {
|
|
anyRemoved = true;
|
|
continue;
|
|
}
|
|
|
|
if (listener.type !== type ||
|
|
!listener.capture && phase === Event.CAPTURING_PHASE ||
|
|
listener.capture && phase === Event.BUBBLING_PHASE) {
|
|
continue;
|
|
}
|
|
|
|
try {
|
|
if (typeof listener.handler === 'function')
|
|
listener.handler.call(currentTarget, event);
|
|
else
|
|
listener.handler.handleEvent(event);
|
|
|
|
if (stopImmediatePropagationTable.get(event))
|
|
return false;
|
|
|
|
} catch (ex) {
|
|
if (window.onerror)
|
|
window.onerror(ex.message);
|
|
else
|
|
console.error(ex);
|
|
}
|
|
}
|
|
|
|
if (anyRemoved) {
|
|
var copy = listeners.slice();
|
|
listeners.length = 0;
|
|
for (var i = 0; i < copy.length; i++) {
|
|
if (!copy[i].removed)
|
|
listeners.push(copy[i]);
|
|
}
|
|
}
|
|
|
|
return !stopPropagationTable.get(event);
|
|
}
|
|
|
|
function Listener(type, handler, capture) {
|
|
this.type = type;
|
|
this.handler = handler;
|
|
this.capture = Boolean(capture);
|
|
}
|
|
Listener.prototype = {
|
|
equals: function(that) {
|
|
return this.handler === that.handler && this.type === that.type &&
|
|
this.capture === that.capture;
|
|
},
|
|
get removed() {
|
|
return this.handler === null;
|
|
},
|
|
remove: function() {
|
|
this.handler = null;
|
|
}
|
|
};
|
|
|
|
var OriginalEvent = window.Event;
|
|
|
|
/**
|
|
* Creates a new Event wrapper or wraps an existin native Event object.
|
|
* @param {string|Event} type
|
|
* @param {Object=} options
|
|
* @constructor
|
|
*/
|
|
function Event(type, options) {
|
|
if (type instanceof OriginalEvent)
|
|
this.impl = type;
|
|
else
|
|
return wrap(constructEvent(OriginalEvent, 'Event', type, options));
|
|
}
|
|
Event.prototype = {
|
|
get target() {
|
|
return targetTable.get(this);
|
|
},
|
|
get currentTarget() {
|
|
return currentTargetTable.get(this);
|
|
},
|
|
get eventPhase() {
|
|
return eventPhaseTable.get(this);
|
|
},
|
|
stopPropagation: function() {
|
|
stopPropagationTable.set(this, true);
|
|
},
|
|
stopImmediatePropagation: function() {
|
|
stopPropagationTable.set(this, true);
|
|
stopImmediatePropagationTable.set(this, true);
|
|
}
|
|
};
|
|
registerWrapper(OriginalEvent, Event, document.createEvent('Event'));
|
|
|
|
function unwrapOptions(options) {
|
|
if (!options || !options.relatedTarget)
|
|
return options;
|
|
return Object.create(options, {
|
|
relatedTarget: {value: unwrap(options.relatedTarget)}
|
|
});
|
|
}
|
|
|
|
function registerGenericEvent(name, SuperEvent, prototype) {
|
|
var OriginalEvent = window[name];
|
|
var GenericEvent = function(type, options) {
|
|
if (type instanceof OriginalEvent)
|
|
this.impl = type;
|
|
else
|
|
return wrap(constructEvent(OriginalEvent, name, type, options));
|
|
};
|
|
GenericEvent.prototype = Object.create(SuperEvent.prototype);
|
|
if (prototype)
|
|
mixin(GenericEvent.prototype, prototype);
|
|
// Firefox does not support FocusEvent
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=855741
|
|
if (OriginalEvent)
|
|
registerWrapper(OriginalEvent, GenericEvent, document.createEvent(name));
|
|
return GenericEvent;
|
|
}
|
|
|
|
var UIEvent = registerGenericEvent('UIEvent', Event);
|
|
var CustomEvent = registerGenericEvent('CustomEvent', Event);
|
|
|
|
var relatedTargetProto = {
|
|
get relatedTarget() {
|
|
return relatedTargetTable.get(this) || wrap(unwrap(this).relatedTarget);
|
|
}
|
|
};
|
|
|
|
function getInitFunction(name, relatedTargetIndex) {
|
|
return function() {
|
|
arguments[relatedTargetIndex] = unwrap(arguments[relatedTargetIndex]);
|
|
var impl = unwrap(this);
|
|
impl[name].apply(impl, arguments);
|
|
};
|
|
}
|
|
|
|
var mouseEventProto = mixin({
|
|
initMouseEvent: getInitFunction('initMouseEvent', 14)
|
|
}, relatedTargetProto);
|
|
|
|
var focusEventProto = mixin({
|
|
initFocusEvent: getInitFunction('initFocusEvent', 5)
|
|
}, relatedTargetProto);
|
|
|
|
var MouseEvent = registerGenericEvent('MouseEvent', UIEvent, mouseEventProto);
|
|
var FocusEvent = registerGenericEvent('FocusEvent', UIEvent, focusEventProto);
|
|
|
|
var MutationEvent = registerGenericEvent('MutationEvent', Event, {
|
|
initMutationEvent: getInitFunction('initMutationEvent', 3),
|
|
get relatedNode() {
|
|
return wrap(this.impl.relatedNode);
|
|
},
|
|
});
|
|
|
|
// In case the browser does not support event constructors we polyfill that
|
|
// by calling `createEvent('Foo')` and `initFooEvent` where the arguments to
|
|
// `initFooEvent` are derived from the registered default event init dict.
|
|
var defaultInitDicts = Object.create(null);
|
|
|
|
var supportsEventConstructors = (function() {
|
|
try {
|
|
new window.MouseEvent('click');
|
|
} catch (ex) {
|
|
return false;
|
|
}
|
|
return true;
|
|
})();
|
|
|
|
/**
|
|
* Constructs a new native event.
|
|
*/
|
|
function constructEvent(OriginalEvent, name, type, options) {
|
|
if (supportsEventConstructors)
|
|
return new OriginalEvent(type, unwrapOptions(options));
|
|
|
|
// Create the arguments from the default dictionary.
|
|
var event = unwrap(document.createEvent(name));
|
|
var defaultDict = defaultInitDicts[name];
|
|
var args = [type];
|
|
Object.keys(defaultDict).forEach(function(key) {
|
|
var v = options != null && key in options ?
|
|
options[key] : defaultDict[key];
|
|
if (key === 'relatedTarget')
|
|
v = unwrap(v);
|
|
args.push(v);
|
|
});
|
|
event['init' + name].apply(event, args);
|
|
return event;
|
|
}
|
|
|
|
if (!supportsEventConstructors) {
|
|
var configureEventConstructor = function(name, initDict, superName) {
|
|
if (superName) {
|
|
var superDict = defaultInitDicts[superName];
|
|
initDict = mixin(mixin({}, superDict), initDict);
|
|
}
|
|
|
|
defaultInitDicts[name] = initDict;
|
|
};
|
|
|
|
// The order of the default event init dictionary keys is important, the
|
|
// arguments to initFooEvent is derived from that.
|
|
configureEventConstructor('Event', {bubbles: false, cancelable: false});
|
|
configureEventConstructor('CustomEvent', {detail: null}, 'Event');
|
|
configureEventConstructor('UIEvent', {view: null, detail: 0}, 'Event');
|
|
configureEventConstructor('MouseEvent', {
|
|
screenX: 0,
|
|
screenY: 0,
|
|
clientX: 0,
|
|
clientY: 0,
|
|
ctrlKey: false,
|
|
altKey: false,
|
|
shiftKey: false,
|
|
metaKey: false,
|
|
button: 0,
|
|
relatedTarget: null
|
|
}, 'UIEvent');
|
|
configureEventConstructor('FocusEvent', {relatedTarget: null}, 'UIEvent');
|
|
}
|
|
|
|
function isValidListener(fun) {
|
|
if (typeof fun === 'function')
|
|
return true;
|
|
return fun && fun.handleEvent;
|
|
}
|
|
|
|
var OriginalEventTarget = window.EventTarget;
|
|
|
|
/**
|
|
* This represents a wrapper for an EventTarget.
|
|
* @param {!EventTarget} impl The original event target.
|
|
* @constructor
|
|
*/
|
|
function EventTarget(impl) {
|
|
this.impl = impl;
|
|
}
|
|
|
|
// Node and Window have different internal type checks in WebKit so we cannot
|
|
// use the same method as the original function.
|
|
var methodNames = [
|
|
'addEventListener',
|
|
'removeEventListener',
|
|
'dispatchEvent'
|
|
];
|
|
|
|
[Element, Window, Document].forEach(function(constructor) {
|
|
var p = constructor.prototype;
|
|
methodNames.forEach(function(name) {
|
|
Object.defineProperty(p, name + '_', {value: p[name]});
|
|
});
|
|
});
|
|
|
|
function getTargetToListenAt(wrapper) {
|
|
if (wrapper instanceof wrappers.ShadowRoot)
|
|
wrapper = scope.getHostForShadowRoot(wrapper);
|
|
return unwrap(wrapper);
|
|
}
|
|
|
|
EventTarget.prototype = {
|
|
addEventListener: function(type, fun, capture) {
|
|
if (!isValidListener(fun))
|
|
return;
|
|
|
|
var listener = new Listener(type, fun, capture);
|
|
var listeners = listenersTable.get(this);
|
|
if (!listeners) {
|
|
listeners = [];
|
|
listenersTable.set(this, listeners);
|
|
} else {
|
|
// Might have a duplicate.
|
|
for (var i = 0; i < listeners.length; i++) {
|
|
if (listener.equals(listeners[i]))
|
|
return;
|
|
}
|
|
}
|
|
|
|
listeners.push(listener);
|
|
|
|
var target = getTargetToListenAt(this);
|
|
target.addEventListener_(type, dispatchOriginalEvent, true);
|
|
},
|
|
removeEventListener: function(type, fun, capture) {
|
|
capture = Boolean(capture);
|
|
var listeners = listenersTable.get(this);
|
|
if (!listeners)
|
|
return;
|
|
var count = 0, found = false;
|
|
for (var i = 0; i < listeners.length; i++) {
|
|
if (listeners[i].type === type && listeners[i].capture === capture) {
|
|
count++;
|
|
if (listeners[i].handler === fun) {
|
|
found = true;
|
|
listeners[i].remove();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (found && count === 1) {
|
|
var target = getTargetToListenAt(this);
|
|
target.removeEventListener_(type, dispatchOriginalEvent, true);
|
|
}
|
|
},
|
|
dispatchEvent: function(event) {
|
|
scope.renderAllPending();
|
|
var target = getTargetToListenAt(this);
|
|
return target.dispatchEvent_(unwrap(event));
|
|
}
|
|
};
|
|
|
|
if (OriginalEventTarget)
|
|
registerWrapper(OriginalEventTarget, EventTarget);
|
|
|
|
function wrapEventTargetMethods(constructors) {
|
|
forwardMethodsToWrapper(constructors, methodNames);
|
|
}
|
|
|
|
|
|
var originalElementFromPoint = document.elementFromPoint;
|
|
|
|
function elementFromPoint(self, document, x, y) {
|
|
scope.renderAllPending();
|
|
|
|
var element = wrap(originalElementFromPoint.call(document.impl, x, y));
|
|
var targets = retarget(element, this)
|
|
for (var i = 0; i < targets.length; i++) {
|
|
var target = targets[i];
|
|
if (target.currentTarget === self)
|
|
return target.target;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
scope.adjustRelatedTarget = adjustRelatedTarget;
|
|
scope.elementFromPoint = elementFromPoint;
|
|
scope.wrapEventTargetMethods = wrapEventTargetMethods;
|
|
scope.wrappers.CustomEvent = CustomEvent;
|
|
scope.wrappers.Event = Event;
|
|
scope.wrappers.EventTarget = EventTarget;
|
|
scope.wrappers.FocusEvent = FocusEvent;
|
|
scope.wrappers.MouseEvent = MouseEvent;
|
|
scope.wrappers.MutationEvent = MutationEvent;
|
|
scope.wrappers.UIEvent = UIEvent;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2012 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var wrap = scope.wrap;
|
|
|
|
function nonEnum(obj, prop) {
|
|
Object.defineProperty(obj, prop, {enumerable: false});
|
|
}
|
|
|
|
function NodeList() {
|
|
this.length = 0;
|
|
nonEnum(this, 'length');
|
|
}
|
|
NodeList.prototype = {
|
|
item: function(index) {
|
|
return this[index];
|
|
}
|
|
};
|
|
nonEnum(NodeList.prototype, 'item');
|
|
|
|
function wrapNodeList(list) {
|
|
if (list == null)
|
|
return list;
|
|
var wrapperList = new NodeList();
|
|
for (var i = 0, length = list.length; i < length; i++) {
|
|
wrapperList[i] = wrap(list[i]);
|
|
}
|
|
wrapperList.length = length;
|
|
return wrapperList;
|
|
}
|
|
|
|
function addWrapNodeListMethod(wrapperConstructor, name) {
|
|
wrapperConstructor.prototype[name] = function() {
|
|
return wrapNodeList(this.impl[name].apply(this.impl, arguments));
|
|
};
|
|
}
|
|
|
|
scope.wrappers.NodeList = NodeList;
|
|
scope.addWrapNodeListMethod = addWrapNodeListMethod;
|
|
scope.wrapNodeList = wrapNodeList;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
// Copyright 2012 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var EventTarget = scope.wrappers.EventTarget;
|
|
var NodeList = scope.wrappers.NodeList;
|
|
var defineWrapGetter = scope.defineWrapGetter;
|
|
var assert = scope.assert;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
var unwrap = scope.unwrap;
|
|
var wrap = scope.wrap;
|
|
|
|
function assertIsNodeWrapper(node) {
|
|
assert(node instanceof Node);
|
|
}
|
|
|
|
/**
|
|
* Collects nodes from a DocumentFragment or a Node for removal followed
|
|
* by an insertion.
|
|
*
|
|
* This updates the internal pointers for node, previousNode and nextNode.
|
|
*/
|
|
function collectNodes(node, parentNode, previousNode, nextNode) {
|
|
if (node.nodeType !== Node.DOCUMENT_FRAGMENT_NODE) {
|
|
if (node.parentNode)
|
|
node.parentNode.removeChild(node);
|
|
node.parentNode_ = parentNode;
|
|
node.previousSibling_ = previousNode;
|
|
node.nextSibling_ = nextNode;
|
|
if (previousNode)
|
|
previousNode.nextSibling_ = node;
|
|
if (nextNode)
|
|
nextNode.previousSibling_ = node;
|
|
return [node];
|
|
}
|
|
|
|
var nodes = [];
|
|
var firstChild;
|
|
while (firstChild = node.firstChild) {
|
|
node.removeChild(firstChild);
|
|
nodes.push(firstChild);
|
|
firstChild.parentNode_ = parentNode;
|
|
}
|
|
|
|
for (var i = 0; i < nodes.length; i++) {
|
|
nodes[i].previousSibling_ = nodes[i - 1] || previousNode;
|
|
nodes[i].nextSibling_ = nodes[i + 1] || nextNode;
|
|
}
|
|
|
|
if (previousNode)
|
|
previousNode.nextSibling_ = nodes[0];
|
|
if (nextNode)
|
|
nextNode.previousSibling_ = nodes[nodes.length - 1];
|
|
|
|
return nodes;
|
|
}
|
|
|
|
function unwrapNodesForInsertion(nodes) {
|
|
if (nodes.length === 1)
|
|
return unwrap(nodes[0]);
|
|
|
|
var df = unwrap(document.createDocumentFragment());
|
|
for (var i = 0; i < nodes.length; i++) {
|
|
df.appendChild(unwrap(nodes[i]));
|
|
}
|
|
return df;
|
|
}
|
|
|
|
function removeAllChildNodes(wrapper) {
|
|
var childWrapper = wrapper.firstChild;
|
|
while (childWrapper) {
|
|
assert(childWrapper.parentNode === wrapper);
|
|
var nextSibling = childWrapper.nextSibling;
|
|
var childNode = unwrap(childWrapper);
|
|
var parentNode = childNode.parentNode;
|
|
if (parentNode)
|
|
originalRemoveChild.call(parentNode, childNode);
|
|
childWrapper.previousSibling_ = childWrapper.nextSibling_ = childWrapper.parentNode_ = null;
|
|
childWrapper = nextSibling;
|
|
}
|
|
wrapper.firstChild_ = wrapper.lastChild_ = null;
|
|
}
|
|
|
|
var OriginalNode = window.Node;
|
|
|
|
/**
|
|
* This represents a wrapper of a native DOM node.
|
|
* @param {!Node} original The original DOM node, aka, the visual DOM node.
|
|
* @constructor
|
|
* @extends {EventTarget}
|
|
*/
|
|
function Node(original) {
|
|
assert(original instanceof OriginalNode);
|
|
|
|
EventTarget.call(this, original);
|
|
|
|
// These properties are used to override the visual references with the
|
|
// logical ones. If the value is undefined it means that the logical is the
|
|
// same as the visual.
|
|
|
|
/**
|
|
* @type {Node|undefined}
|
|
* @private
|
|
*/
|
|
this.parentNode_ = undefined;
|
|
|
|
/**
|
|
* @type {Node|undefined}
|
|
* @private
|
|
*/
|
|
this.firstChild_ = undefined;
|
|
|
|
/**
|
|
* @type {Node|undefined}
|
|
* @private
|
|
*/
|
|
this.lastChild_ = undefined;
|
|
|
|
/**
|
|
* @type {Node|undefined}
|
|
* @private
|
|
*/
|
|
this.nextSibling_ = undefined;
|
|
|
|
/**
|
|
* @type {Node|undefined}
|
|
* @private
|
|
*/
|
|
this.previousSibling_ = undefined;
|
|
};
|
|
|
|
var originalAppendChild = OriginalNode.prototype.appendChild;
|
|
var originalInsertBefore = OriginalNode.prototype.insertBefore;
|
|
var originalReplaceChild = OriginalNode.prototype.replaceChild;
|
|
var originalRemoveChild = OriginalNode.prototype.removeChild;
|
|
var originalCompareDocumentPosition =
|
|
OriginalNode.prototype.compareDocumentPosition;
|
|
|
|
Node.prototype = Object.create(EventTarget.prototype);
|
|
mixin(Node.prototype, {
|
|
appendChild: function(childWrapper) {
|
|
assertIsNodeWrapper(childWrapper);
|
|
|
|
this.invalidateShadowRenderer();
|
|
|
|
var previousNode = this.lastChild;
|
|
var nextNode = null;
|
|
var nodes = collectNodes(childWrapper, this,
|
|
previousNode, nextNode);
|
|
|
|
this.lastChild_ = nodes[nodes.length - 1];
|
|
if (!previousNode)
|
|
this.firstChild_ = nodes[0];
|
|
|
|
// TODO(arv): It is unclear if we need to update the visual DOM here.
|
|
// A better aproach might be to make sure we only get here for nodes that
|
|
// are related to a shadow host and then invalidate that and re-render
|
|
// the host (on reflow?).
|
|
originalAppendChild.call(this.impl, unwrapNodesForInsertion(nodes));
|
|
|
|
return childWrapper;
|
|
},
|
|
|
|
insertBefore: function(childWrapper, refWrapper) {
|
|
// TODO(arv): Unify with appendChild
|
|
if (!refWrapper)
|
|
return this.appendChild(childWrapper);
|
|
|
|
assertIsNodeWrapper(childWrapper);
|
|
assertIsNodeWrapper(refWrapper);
|
|
assert(refWrapper.parentNode === this);
|
|
|
|
this.invalidateShadowRenderer();
|
|
|
|
var previousNode = refWrapper.previousSibling;
|
|
var nextNode = refWrapper;
|
|
var nodes = collectNodes(childWrapper, this,
|
|
previousNode, nextNode);
|
|
|
|
|
|
if (this.firstChild === refWrapper)
|
|
this.firstChild_ = nodes[0];
|
|
|
|
// insertBefore refWrapper no matter what the parent is?
|
|
var refNode = unwrap(refWrapper);
|
|
var parentNode = refNode.parentNode;
|
|
if (parentNode) {
|
|
originalInsertBefore.call(
|
|
parentNode,
|
|
unwrapNodesForInsertion(nodes),
|
|
refNode);
|
|
}
|
|
|
|
return childWrapper;
|
|
},
|
|
|
|
removeChild: function(childWrapper) {
|
|
assertIsNodeWrapper(childWrapper);
|
|
if (childWrapper.parentNode !== this) {
|
|
// TODO(arv): DOMException
|
|
throw new Error('NotFoundError');
|
|
}
|
|
|
|
this.invalidateShadowRenderer();
|
|
|
|
// We need to remove the real node from the DOM before updating the
|
|
// pointers. This is so that that mutation event is dispatched before
|
|
// the pointers have changed.
|
|
var thisFirstChild = this.firstChild;
|
|
var thisLastChild = this.lastChild;
|
|
var childWrapperNextSibling = childWrapper.nextSibling;
|
|
var childWrapperPreviousSibling = childWrapper.previousSibling;
|
|
|
|
var childNode = unwrap(childWrapper);
|
|
var parentNode = childNode.parentNode;
|
|
if (parentNode)
|
|
originalRemoveChild.call(parentNode, childNode);
|
|
|
|
if (thisFirstChild === childWrapper)
|
|
this.firstChild_ = childWrapperNextSibling;
|
|
if (thisLastChild === childWrapper)
|
|
this.lastChild_ = childWrapperPreviousSibling;
|
|
if (childWrapperPreviousSibling)
|
|
childWrapperPreviousSibling.nextSibling_ = childWrapperNextSibling;
|
|
if (childWrapperNextSibling)
|
|
childWrapperNextSibling.previousSibling_ = childWrapperPreviousSibling;
|
|
|
|
childWrapper.previousSibling_ = childWrapper.nextSibling_ = childWrapper.parentNode_ = null;
|
|
|
|
return childWrapper;
|
|
},
|
|
|
|
replaceChild: function(newChildWrapper, oldChildWrapper) {
|
|
assertIsNodeWrapper(newChildWrapper);
|
|
assertIsNodeWrapper(oldChildWrapper);
|
|
|
|
if (oldChildWrapper.parentNode !== this) {
|
|
// TODO(arv): DOMException
|
|
throw new Error('NotFoundError');
|
|
}
|
|
|
|
this.invalidateShadowRenderer();
|
|
|
|
var previousNode = oldChildWrapper.previousSibling;
|
|
var nextNode = oldChildWrapper.nextSibling;
|
|
if (nextNode === newChildWrapper)
|
|
nextNode = newChildWrapper.nextSibling;
|
|
var nodes = collectNodes(newChildWrapper, this,
|
|
previousNode, nextNode);
|
|
|
|
if (this.firstChild === oldChildWrapper)
|
|
this.firstChild_ = nodes[0];
|
|
if (this.lastChild === oldChildWrapper)
|
|
this.lastChild_ = nodes[nodes.length - 1];
|
|
|
|
oldChildWrapper.previousSibling_ = null;
|
|
oldChildWrapper.nextSibling_ = null;
|
|
oldChildWrapper.parentNode_ = null;
|
|
|
|
// replaceChild no matter what the parent is?
|
|
var oldChildNode = unwrap(oldChildWrapper);
|
|
if (oldChildNode.parentNode) {
|
|
originalReplaceChild.call(
|
|
oldChildNode.parentNode,
|
|
unwrapNodesForInsertion(nodes),
|
|
oldChildNode);
|
|
}
|
|
|
|
return oldChildWrapper;
|
|
},
|
|
|
|
hasChildNodes: function() {
|
|
return this.firstChild === null;
|
|
},
|
|
|
|
/** @type {Node} */
|
|
get parentNode() {
|
|
// If the parentNode has not been overridden, use the original parentNode.
|
|
return this.parentNode_ !== undefined ?
|
|
this.parentNode_ : wrap(this.impl.parentNode);
|
|
},
|
|
|
|
/** @type {Node} */
|
|
get firstChild() {
|
|
return this.firstChild_ !== undefined ?
|
|
this.firstChild_ : wrap(this.impl.firstChild);
|
|
},
|
|
|
|
/** @type {Node} */
|
|
get lastChild() {
|
|
return this.lastChild_ !== undefined ?
|
|
this.lastChild_ : wrap(this.impl.lastChild);
|
|
},
|
|
|
|
/** @type {Node} */
|
|
get nextSibling() {
|
|
return this.nextSibling_ !== undefined ?
|
|
this.nextSibling_ : wrap(this.impl.nextSibling);
|
|
},
|
|
|
|
/** @type {Node} */
|
|
get previousSibling() {
|
|
return this.previousSibling_ !== undefined ?
|
|
this.previousSibling_ : wrap(this.impl.previousSibling);
|
|
},
|
|
|
|
get parentElement() {
|
|
var p = this.parentNode;
|
|
while (p && p.nodeType !== Node.ELEMENT_NODE) {
|
|
p = p.parentNode;
|
|
}
|
|
return p;
|
|
},
|
|
|
|
get textContent() {
|
|
// TODO(arv): This should fallback to this.impl.textContent if there
|
|
// are no shadow trees below or above the context node.
|
|
var s = '';
|
|
for (var child = this.firstChild; child; child = child.nextSibling) {
|
|
s += child.textContent;
|
|
}
|
|
return s;
|
|
},
|
|
set textContent(textContent) {
|
|
removeAllChildNodes(this);
|
|
this.invalidateShadowRenderer();
|
|
if (textContent !== '') {
|
|
var textNode = this.impl.ownerDocument.createTextNode(textContent);
|
|
this.appendChild(textNode);
|
|
}
|
|
},
|
|
|
|
get childNodes() {
|
|
var wrapperList = new NodeList();
|
|
var i = 0;
|
|
for (var child = this.firstChild; child; child = child.nextSibling) {
|
|
wrapperList[i++] = child;
|
|
}
|
|
wrapperList.length = i;
|
|
return wrapperList;
|
|
},
|
|
|
|
cloneNode: function(deep) {
|
|
if (!this.invalidateShadowRenderer())
|
|
return wrap(this.impl.cloneNode(deep));
|
|
|
|
var clone = wrap(this.impl.cloneNode(false));
|
|
if (deep) {
|
|
for (var child = this.firstChild; child; child = child.nextSibling) {
|
|
clone.appendChild(child.cloneNode(true));
|
|
}
|
|
}
|
|
// TODO(arv): Some HTML elements also clone other data like value.
|
|
return clone;
|
|
},
|
|
|
|
// insertionParent is added in ShadowRender.js
|
|
|
|
contains: function(child) {
|
|
if (!child)
|
|
return false;
|
|
|
|
// TODO(arv): Optimize using ownerDocument etc.
|
|
if (child === this)
|
|
return true;
|
|
var parentNode = child.parentNode;
|
|
if (!parentNode)
|
|
return false;
|
|
return this.contains(parentNode);
|
|
},
|
|
|
|
compareDocumentPosition: function(otherNode) {
|
|
// This only wraps, it therefore only operates on the composed DOM and not
|
|
// the logical DOM.
|
|
return originalCompareDocumentPosition.call(this.impl, unwrap(otherNode));
|
|
},
|
|
|
|
// TODO(jmesserly): this is a workaround for
|
|
// https://github.com/Polymer/ShadowDOM/issues/200
|
|
get ownerDocument() {
|
|
scope.renderAllPending();
|
|
return wrap(this.impl.ownerDocument);
|
|
}
|
|
});
|
|
|
|
// TODO(jmesserly): this is commented out to workaround:
|
|
// https://github.com/Polymer/ShadowDOM/issues/200
|
|
//defineWrapGetter(Node, 'ownerDocument');
|
|
|
|
// We use a DocumentFragment as a base and then delete the properties of
|
|
// DocumentFragment.prototype from the wrapper Node. Since delete makes
|
|
// objects slow in some JS engines we recreate the prototype object.
|
|
registerWrapper(OriginalNode, Node, document.createDocumentFragment());
|
|
delete Node.prototype.querySelector;
|
|
delete Node.prototype.querySelectorAll;
|
|
Node.prototype = mixin(Object.create(EventTarget.prototype), Node.prototype);
|
|
|
|
scope.wrappers.Node = Node;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// 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(scope) {
|
|
'use strict';
|
|
|
|
function findOne(node, selector) {
|
|
var m, el = node.firstElementChild;
|
|
while (el) {
|
|
if (el.matches(selector))
|
|
return el;
|
|
m = findOne(el, selector);
|
|
if (m)
|
|
return m;
|
|
el = el.nextElementSibling;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
function findAll(node, selector, results) {
|
|
var el = node.firstElementChild;
|
|
while (el) {
|
|
if (el.matches(selector))
|
|
results[results.length++] = el;
|
|
findAll(el, selector, results);
|
|
el = el.nextElementSibling;
|
|
}
|
|
return results;
|
|
}
|
|
|
|
// find and findAll will only match Simple Selectors,
|
|
// Structural Pseudo Classes are not guarenteed to be correct
|
|
// http://www.w3.org/TR/css3-selectors/#simple-selectors
|
|
|
|
var SelectorsInterface = {
|
|
querySelector: function(selector) {
|
|
return findOne(this, selector);
|
|
},
|
|
querySelectorAll: function(selector) {
|
|
return findAll(this, selector, new NodeList())
|
|
}
|
|
};
|
|
|
|
var GetElementsByInterface = {
|
|
getElementsByTagName: function(tagName) {
|
|
// TODO(arv): Check tagName?
|
|
return this.querySelectorAll(tagName);
|
|
},
|
|
getElementsByClassName: function(className) {
|
|
// TODO(arv): Check className?
|
|
return this.querySelectorAll('.' + className);
|
|
},
|
|
getElementsByTagNameNS: function(ns, tagName) {
|
|
if (ns === '*')
|
|
return this.getElementsByTagName(tagName);
|
|
|
|
// TODO(arv): Check tagName?
|
|
var result = new NodeList;
|
|
var els = this.getElementsByTagName(tagName);
|
|
for (var i = 0, j = 0; i < els.length; i++) {
|
|
if (els[i].namespaceURI === ns)
|
|
result[j++] = els[i];
|
|
}
|
|
result.length = j;
|
|
return result;
|
|
}
|
|
};
|
|
|
|
scope.GetElementsByInterface = GetElementsByInterface;
|
|
scope.SelectorsInterface = SelectorsInterface;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var NodeList = scope.wrappers.NodeList;
|
|
|
|
function forwardElement(node) {
|
|
while (node && node.nodeType !== Node.ELEMENT_NODE) {
|
|
node = node.nextSibling;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
function backwardsElement(node) {
|
|
while (node && node.nodeType !== Node.ELEMENT_NODE) {
|
|
node = node.previousSibling;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
var ParentNodeInterface = {
|
|
get firstElementChild() {
|
|
return forwardElement(this.firstChild);
|
|
},
|
|
|
|
get lastElementChild() {
|
|
return backwardsElement(this.lastChild);
|
|
},
|
|
|
|
get childElementCount() {
|
|
var count = 0;
|
|
for (var child = this.firstElementChild;
|
|
child;
|
|
child = child.nextElementSibling) {
|
|
count++;
|
|
}
|
|
return count;
|
|
},
|
|
|
|
get children() {
|
|
var wrapperList = new NodeList();
|
|
var i = 0;
|
|
for (var child = this.firstElementChild;
|
|
child;
|
|
child = child.nextElementSibling) {
|
|
wrapperList[i++] = child;
|
|
}
|
|
wrapperList.length = i;
|
|
return wrapperList;
|
|
}
|
|
};
|
|
|
|
var ChildNodeInterface = {
|
|
get nextElementSibling() {
|
|
return forwardElement(this.nextSibling);
|
|
},
|
|
|
|
get previousElementSibling() {
|
|
return backwardsElement(this.nextSibling);
|
|
}
|
|
};
|
|
|
|
scope.ChildNodeInterface = ChildNodeInterface;
|
|
scope.ParentNodeInterface = ParentNodeInterface;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var ChildNodeInterface = scope.ChildNodeInterface;
|
|
var Node = scope.wrappers.Node;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
|
|
var OriginalCharacterData = window.CharacterData;
|
|
|
|
function CharacterData(node) {
|
|
Node.call(this, node);
|
|
}
|
|
CharacterData.prototype = Object.create(Node.prototype);
|
|
mixin(CharacterData.prototype, {
|
|
get textContent() {
|
|
return this.data;
|
|
},
|
|
set textContent(value) {
|
|
this.data = value;
|
|
}
|
|
});
|
|
|
|
mixin(CharacterData.prototype, ChildNodeInterface);
|
|
|
|
registerWrapper(OriginalCharacterData, CharacterData,
|
|
document.createTextNode(''));
|
|
|
|
scope.wrappers.CharacterData = CharacterData;
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var ChildNodeInterface = scope.ChildNodeInterface;
|
|
var GetElementsByInterface = scope.GetElementsByInterface;
|
|
var Node = scope.wrappers.Node;
|
|
var ParentNodeInterface = scope.ParentNodeInterface;
|
|
var SelectorsInterface = scope.SelectorsInterface;
|
|
var addWrapNodeListMethod = scope.addWrapNodeListMethod;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
var wrappers = scope.wrappers;
|
|
|
|
var shadowRootTable = new SideTable();
|
|
var OriginalElement = window.Element;
|
|
|
|
var originalMatches =
|
|
OriginalElement.prototype.matches ||
|
|
OriginalElement.prototype.mozMatchesSelector ||
|
|
OriginalElement.prototype.msMatchesSelector ||
|
|
OriginalElement.prototype.webkitMatchesSelector;
|
|
|
|
function Element(node) {
|
|
Node.call(this, node);
|
|
}
|
|
Element.prototype = Object.create(Node.prototype);
|
|
mixin(Element.prototype, {
|
|
createShadowRoot: function() {
|
|
var newShadowRoot = new wrappers.ShadowRoot(this);
|
|
shadowRootTable.set(this, newShadowRoot);
|
|
|
|
scope.getRendererForHost(this);
|
|
|
|
this.invalidateShadowRenderer(true);
|
|
|
|
return newShadowRoot;
|
|
},
|
|
|
|
get shadowRoot() {
|
|
return shadowRootTable.get(this) || null;
|
|
},
|
|
|
|
setAttribute: function(name, value) {
|
|
this.impl.setAttribute(name, value);
|
|
// This is a bit agressive. We need to invalidate if it affects
|
|
// the rendering content[select] or if it effects the value of a content
|
|
// select.
|
|
this.invalidateShadowRenderer();
|
|
},
|
|
|
|
matches: function(selector) {
|
|
return originalMatches.call(this.impl, selector);
|
|
}
|
|
});
|
|
|
|
mixin(Element.prototype, ChildNodeInterface);
|
|
mixin(Element.prototype, GetElementsByInterface);
|
|
mixin(Element.prototype, ParentNodeInterface);
|
|
mixin(Element.prototype, SelectorsInterface);
|
|
|
|
registerWrapper(OriginalElement, Element);
|
|
|
|
scope.wrappers.Element = Element;
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var Element = scope.wrappers.Element;
|
|
var defineGetter = scope.defineGetter;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
var unwrap = scope.unwrap;
|
|
var wrap = scope.wrap;
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// innerHTML and outerHTML
|
|
|
|
var escapeRegExp = /&|<|"/g;
|
|
|
|
function escapeReplace(c) {
|
|
switch (c) {
|
|
case '&':
|
|
return '&';
|
|
case '<':
|
|
return '<';
|
|
case '"':
|
|
return '"'
|
|
}
|
|
}
|
|
|
|
function escape(s) {
|
|
return s.replace(escapeRegExp, escapeReplace);
|
|
}
|
|
|
|
// http://www.whatwg.org/specs/web-apps/current-work/#void-elements
|
|
var voidElements = {
|
|
'area': true,
|
|
'base': true,
|
|
'br': true,
|
|
'col': true,
|
|
'command': true,
|
|
'embed': true,
|
|
'hr': true,
|
|
'img': true,
|
|
'input': true,
|
|
'keygen': true,
|
|
'link': true,
|
|
'meta': true,
|
|
'param': true,
|
|
'source': true,
|
|
'track': true,
|
|
'wbr': true
|
|
};
|
|
|
|
function getOuterHTML(node) {
|
|
switch (node.nodeType) {
|
|
case Node.ELEMENT_NODE:
|
|
var tagName = node.tagName.toLowerCase();
|
|
var s = '<' + tagName;
|
|
var attrs = node.attributes;
|
|
for (var i = 0, attr; attr = attrs[i]; i++) {
|
|
s += ' ' + attr.name + '="' + escape(attr.value) + '"';
|
|
}
|
|
s += '>';
|
|
if (voidElements[tagName])
|
|
return s;
|
|
|
|
return s + getInnerHTML(node) + '</' + tagName + '>';
|
|
|
|
case Node.TEXT_NODE:
|
|
return escape(node.nodeValue);
|
|
|
|
case Node.COMMENT_NODE:
|
|
return '<!--' + escape(node.nodeValue) + '-->';
|
|
default:
|
|
console.error(node);
|
|
throw new Error('not implemented');
|
|
}
|
|
}
|
|
|
|
function getInnerHTML(node) {
|
|
var s = '';
|
|
for (var child = node.firstChild; child; child = child.nextSibling) {
|
|
s += getOuterHTML(child);
|
|
}
|
|
return s;
|
|
}
|
|
|
|
function setInnerHTML(node, value, opt_tagName) {
|
|
var tagName = opt_tagName || 'div';
|
|
node.textContent = '';
|
|
var tempElement =unwrap(node.ownerDocument.createElement(tagName));
|
|
tempElement.innerHTML = value;
|
|
var firstChild;
|
|
while (firstChild = tempElement.firstChild) {
|
|
node.appendChild(wrap(firstChild));
|
|
}
|
|
}
|
|
|
|
var OriginalHTMLElement = window.HTMLElement;
|
|
|
|
function HTMLElement(node) {
|
|
Element.call(this, node);
|
|
}
|
|
HTMLElement.prototype = Object.create(Element.prototype);
|
|
mixin(HTMLElement.prototype, {
|
|
get innerHTML() {
|
|
// TODO(arv): This should fallback to this.impl.innerHTML if there
|
|
// are no shadow trees below or above the context node.
|
|
return getInnerHTML(this);
|
|
},
|
|
set innerHTML(value) {
|
|
setInnerHTML(this, value, this.tagName);
|
|
},
|
|
|
|
get outerHTML() {
|
|
// TODO(arv): This should fallback to HTMLElement_prototype.outerHTML if there
|
|
// are no shadow trees below or above the context node.
|
|
return getOuterHTML(this);
|
|
},
|
|
set outerHTML(value) {
|
|
if (!this.invalidateShadowRenderer()) {
|
|
this.impl.outerHTML = value;
|
|
} else {
|
|
throw new Error('not implemented');
|
|
}
|
|
}
|
|
});
|
|
|
|
function getterRequiresRendering(name) {
|
|
defineGetter(HTMLElement, name, function() {
|
|
scope.renderAllPending();
|
|
return this.impl[name];
|
|
});
|
|
}
|
|
|
|
[
|
|
'clientHeight',
|
|
'clientLeft',
|
|
'clientTop',
|
|
'clientWidth',
|
|
'offsetHeight',
|
|
'offsetLeft',
|
|
'offsetTop',
|
|
'offsetWidth',
|
|
'scrollHeight',
|
|
'scrollLeft',
|
|
'scrollTop',
|
|
'scrollWidth',
|
|
].forEach(getterRequiresRendering);
|
|
|
|
function methodRequiresRendering(name) {
|
|
Object.defineProperty(HTMLElement.prototype, name, {
|
|
value: function() {
|
|
scope.renderAllPending();
|
|
return this.impl[name].apply(this.impl, arguments);
|
|
},
|
|
configurable: true,
|
|
enumerable: true
|
|
});
|
|
}
|
|
|
|
[
|
|
'getBoundingClientRect',
|
|
'getClientRects',
|
|
'scrollIntoView'
|
|
].forEach(methodRequiresRendering);
|
|
|
|
// HTMLElement is abstract so we use a subclass that has no members.
|
|
registerWrapper(OriginalHTMLElement, HTMLElement,
|
|
document.createElement('b'));
|
|
|
|
scope.wrappers.HTMLElement = HTMLElement;
|
|
|
|
// TODO: Find a better way to share these two with WrapperShadowRoot.
|
|
scope.getInnerHTML = getInnerHTML;
|
|
scope.setInnerHTML = setInnerHTML
|
|
})(this.ShadowDOMPolyfill);
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var HTMLElement = scope.wrappers.HTMLElement;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
|
|
var OriginalHTMLContentElement = window.HTMLContentElement;
|
|
|
|
function HTMLContentElement(node) {
|
|
HTMLElement.call(this, node);
|
|
}
|
|
HTMLContentElement.prototype = Object.create(HTMLElement.prototype);
|
|
mixin(HTMLContentElement.prototype, {
|
|
get select() {
|
|
return this.getAttribute('select');
|
|
},
|
|
set select(value) {
|
|
this.setAttribute('select', value);
|
|
},
|
|
|
|
setAttribute: function(n, v) {
|
|
HTMLElement.prototype.setAttribute.call(this, n, v);
|
|
if (String(n).toLowerCase() === 'select')
|
|
this.invalidateShadowRenderer(true);
|
|
}
|
|
|
|
// getDistributedNodes is added in ShadowRenderer
|
|
|
|
// TODO: attribute boolean resetStyleInheritance;
|
|
});
|
|
|
|
if (OriginalHTMLContentElement)
|
|
registerWrapper(OriginalHTMLContentElement, HTMLContentElement);
|
|
|
|
scope.wrappers.HTMLContentElement = HTMLContentElement;
|
|
})(this.ShadowDOMPolyfill);
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var HTMLElement = scope.wrappers.HTMLElement;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
|
|
var OriginalHTMLShadowElement = window.HTMLShadowElement;
|
|
|
|
function HTMLShadowElement(node) {
|
|
HTMLElement.call(this, node);
|
|
this.olderShadowRoot_ = null;
|
|
}
|
|
HTMLShadowElement.prototype = Object.create(HTMLElement.prototype);
|
|
mixin(HTMLShadowElement.prototype, {
|
|
get olderShadowRoot() {
|
|
return this.olderShadowRoot_;
|
|
},
|
|
|
|
invalidateShadowRenderer: function() {
|
|
HTMLElement.prototype.invalidateShadowRenderer.call(this, true);
|
|
},
|
|
|
|
// TODO: attribute boolean resetStyleInheritance;
|
|
});
|
|
|
|
if (OriginalHTMLShadowElement)
|
|
registerWrapper(OriginalHTMLShadowElement, HTMLShadowElement);
|
|
|
|
scope.wrappers.HTMLShadowElement = HTMLShadowElement;
|
|
})(this.ShadowDOMPolyfill);
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var HTMLElement = scope.wrappers.HTMLElement;
|
|
var getInnerHTML = scope.getInnerHTML;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
var setInnerHTML = scope.setInnerHTML;
|
|
var wrap = scope.wrap;
|
|
|
|
var contentTable = new SideTable();
|
|
var templateContentsOwnerTable = new SideTable();
|
|
|
|
// http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html#dfn-template-contents-owner
|
|
function getTemplateContentsOwner(doc) {
|
|
if (!doc.defaultView)
|
|
return doc;
|
|
var d = templateContentsOwnerTable.get(doc);
|
|
if (!d) {
|
|
// TODO(arv): This should either be a Document or HTMLDocument depending
|
|
// on doc.
|
|
d = doc.implementation.createHTMLDocument('');
|
|
while (d.lastChild) {
|
|
d.removeChild(d.lastChild);
|
|
}
|
|
templateContentsOwnerTable.set(doc, d);
|
|
}
|
|
return d;
|
|
}
|
|
|
|
function extractContent(templateElement) {
|
|
var doc = getTemplateContentsOwner(templateElement.ownerDocument);
|
|
var df = doc.createDocumentFragment();
|
|
var nextSibling;
|
|
var child;
|
|
while (child = templateElement.firstChild) {
|
|
df.appendChild(child);
|
|
}
|
|
return df;
|
|
}
|
|
|
|
var OriginalHTMLTemplateElement = window.HTMLTemplateElement;
|
|
|
|
function HTMLTemplateElement(node) {
|
|
HTMLElement.call(this, node);
|
|
}
|
|
HTMLTemplateElement.prototype = Object.create(HTMLElement.prototype);
|
|
|
|
mixin(HTMLTemplateElement.prototype, {
|
|
get content() {
|
|
if (OriginalHTMLTemplateElement)
|
|
return wrap(this.impl.content);
|
|
|
|
// TODO(arv): This should be done in createCallback. I initially tried to
|
|
// do this in the constructor but the wrapper is not yet created at that
|
|
// point in time so we hit an iloop.
|
|
var content = contentTable.get(this);
|
|
if (!content) {
|
|
content = extractContent(this);
|
|
contentTable.set(this, content);
|
|
}
|
|
return content;
|
|
},
|
|
|
|
get innerHTML() {
|
|
return getInnerHTML(this.content);
|
|
},
|
|
set innerHTML(value) {
|
|
setInnerHTML(this.content, value);
|
|
this.invalidateShadowRenderer();
|
|
}
|
|
|
|
// TODO(arv): cloneNode needs to clone content.
|
|
|
|
});
|
|
|
|
if (OriginalHTMLTemplateElement)
|
|
registerWrapper(OriginalHTMLTemplateElement, HTMLTemplateElement);
|
|
|
|
scope.wrappers.HTMLTemplateElement = HTMLTemplateElement;
|
|
})(this.ShadowDOMPolyfill);
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var HTMLContentElement = scope.wrappers.HTMLContentElement;
|
|
var HTMLElement = scope.wrappers.HTMLElement;
|
|
var HTMLShadowElement = scope.wrappers.HTMLShadowElement;
|
|
var HTMLTemplateElement = scope.wrappers.HTMLTemplateElement;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
|
|
var OriginalHTMLUnknownElement = window.HTMLUnknownElement;
|
|
|
|
function HTMLUnknownElement(node) {
|
|
switch (node.localName) {
|
|
case 'content':
|
|
return new HTMLContentElement(node);
|
|
case 'shadow':
|
|
return new HTMLShadowElement(node);
|
|
case 'template':
|
|
return new HTMLTemplateElement(node);
|
|
}
|
|
HTMLElement.call(this, node);
|
|
}
|
|
HTMLUnknownElement.prototype = Object.create(HTMLElement.prototype);
|
|
registerWrapper(OriginalHTMLUnknownElement, HTMLUnknownElement);
|
|
scope.wrappers.HTMLUnknownElement = HTMLUnknownElement;
|
|
})(this.ShadowDOMPolyfill);
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var GetElementsByInterface = scope.GetElementsByInterface;
|
|
var ParentNodeInterface = scope.ParentNodeInterface;
|
|
var SelectorsInterface = scope.SelectorsInterface;
|
|
var mixin = scope.mixin;
|
|
var registerObject = scope.registerObject;
|
|
|
|
var DocumentFragment = registerObject(document.createDocumentFragment());
|
|
mixin(DocumentFragment.prototype, ParentNodeInterface);
|
|
mixin(DocumentFragment.prototype, SelectorsInterface);
|
|
mixin(DocumentFragment.prototype, GetElementsByInterface);
|
|
|
|
var Text = registerObject(document.createTextNode(''));
|
|
var Comment = registerObject(document.createComment(''));
|
|
|
|
scope.wrappers.Comment = Comment;
|
|
scope.wrappers.DocumentFragment = DocumentFragment;
|
|
scope.wrappers.Text = Text;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var DocumentFragment = scope.wrappers.DocumentFragment;
|
|
var elementFromPoint = scope.elementFromPoint;
|
|
var getInnerHTML = scope.getInnerHTML;
|
|
var mixin = scope.mixin;
|
|
var rewrap = scope.rewrap;
|
|
var setInnerHTML = scope.setInnerHTML;
|
|
var unwrap = scope.unwrap;
|
|
|
|
var shadowHostTable = new SideTable();
|
|
|
|
function ShadowRoot(hostWrapper) {
|
|
var node = unwrap(hostWrapper.impl.ownerDocument.createDocumentFragment());
|
|
DocumentFragment.call(this, node);
|
|
|
|
// createDocumentFragment associates the node with a wrapper
|
|
// DocumentFragment instance. Override that.
|
|
rewrap(node, this);
|
|
|
|
var oldShadowRoot = hostWrapper.shadowRoot;
|
|
scope.nextOlderShadowTreeTable.set(this, oldShadowRoot);
|
|
|
|
shadowHostTable.set(this, hostWrapper);
|
|
}
|
|
ShadowRoot.prototype = Object.create(DocumentFragment.prototype);
|
|
mixin(ShadowRoot.prototype, {
|
|
get innerHTML() {
|
|
return getInnerHTML(this);
|
|
},
|
|
set innerHTML(value) {
|
|
setInnerHTML(this, value);
|
|
this.invalidateShadowRenderer();
|
|
},
|
|
|
|
invalidateShadowRenderer: function() {
|
|
return shadowHostTable.get(this).invalidateShadowRenderer();
|
|
},
|
|
|
|
elementFromPoint: function(x, y) {
|
|
return elementFromPoint(this, this.ownerDocument, x, y);
|
|
},
|
|
|
|
getElementById: function(id) {
|
|
return this.querySelector('#' + id);
|
|
}
|
|
});
|
|
|
|
scope.wrappers.ShadowRoot = ShadowRoot;
|
|
scope.getHostForShadowRoot = function(node) {
|
|
return shadowHostTable.get(node);
|
|
};
|
|
})(this.ShadowDOMPolyfill);
|
|
// 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(scope) {
|
|
'use strict';
|
|
|
|
var HTMLContentElement = scope.wrappers.HTMLContentElement;
|
|
var Node = scope.wrappers.Node;
|
|
var assert = scope.assert;
|
|
var mixin = scope.mixin;
|
|
var unwrap = scope.unwrap;
|
|
var wrap = scope.wrap;
|
|
|
|
/**
|
|
* Updates the fields of a wrapper to a snapshot of the logical DOM as needed.
|
|
* Up means parentNode
|
|
* Sideways means previous and next sibling.
|
|
* @param {!Node} wrapper
|
|
*/
|
|
function updateWrapperUpAndSideways(wrapper) {
|
|
wrapper.previousSibling_ = wrapper.previousSibling;
|
|
wrapper.nextSibling_ = wrapper.nextSibling;
|
|
wrapper.parentNode_ = wrapper.parentNode;
|
|
}
|
|
|
|
/**
|
|
* Updates the fields of a wrapper to a snapshot of the logical DOM as needed.
|
|
* Down means first and last child
|
|
* @param {!Node} wrapper
|
|
*/
|
|
function updateWrapperDown(wrapper) {
|
|
wrapper.firstChild_ = wrapper.firstChild;
|
|
wrapper.lastChild_ = wrapper.lastChild;
|
|
}
|
|
|
|
function updateAllChildNodes(parentNodeWrapper) {
|
|
assert(parentNodeWrapper instanceof Node);
|
|
for (var childWrapper = parentNodeWrapper.firstChild;
|
|
childWrapper;
|
|
childWrapper = childWrapper.nextSibling) {
|
|
updateWrapperUpAndSideways(childWrapper);
|
|
}
|
|
updateWrapperDown(parentNodeWrapper);
|
|
}
|
|
|
|
// This object groups DOM operations. This is supposed to be the DOM as the
|
|
// browser/render tree sees it.
|
|
// When changes are done to the visual DOM the logical DOM needs to be updated
|
|
// to reflect the correct tree.
|
|
function removeAllChildNodes(parentNodeWrapper) {
|
|
var parentNode = unwrap(parentNodeWrapper);
|
|
updateAllChildNodes(parentNodeWrapper);
|
|
parentNode.textContent = '';
|
|
}
|
|
|
|
function appendChild(parentNodeWrapper, childWrapper) {
|
|
var parentNode = unwrap(parentNodeWrapper);
|
|
var child = unwrap(childWrapper);
|
|
if (child.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {
|
|
updateAllChildNodes(childWrapper);
|
|
|
|
} else {
|
|
remove(childWrapper);
|
|
updateWrapperUpAndSideways(childWrapper);
|
|
}
|
|
|
|
parentNodeWrapper.lastChild_ = parentNodeWrapper.lastChild;
|
|
if (parentNodeWrapper.lastChild === parentNodeWrapper.firstChild)
|
|
parentNodeWrapper.firstChild_ = parentNodeWrapper.firstChild;
|
|
|
|
var lastChildWrapper = wrap(parentNode.lastChild);
|
|
if (lastChildWrapper) {
|
|
lastChildWrapper.nextSibling_ = lastChildWrapper.nextSibling;
|
|
}
|
|
|
|
parentNode.appendChild(child);
|
|
}
|
|
|
|
function removeChild(parentNodeWrapper, childWrapper) {
|
|
var parentNode = unwrap(parentNodeWrapper);
|
|
var child = unwrap(childWrapper);
|
|
|
|
updateWrapperUpAndSideways(childWrapper);
|
|
|
|
if (childWrapper.previousSibling)
|
|
childWrapper.previousSibling.nextSibling_ = childWrapper;
|
|
if (childWrapper.nextSibling)
|
|
childWrapper.nextSibling.previousSibling_ = childWrapper;
|
|
|
|
if (parentNodeWrapper.lastChild === childWrapper)
|
|
parentNodeWrapper.lastChild_ = childWrapper;
|
|
if (parentNodeWrapper.firstChild === childWrapper)
|
|
parentNodeWrapper.firstChild_ = childWrapper;
|
|
|
|
parentNode.removeChild(child);
|
|
}
|
|
|
|
function remove(nodeWrapper) {
|
|
var node = unwrap(nodeWrapper)
|
|
var parentNode = node.parentNode;
|
|
if (parentNode)
|
|
removeChild(wrap(parentNode), nodeWrapper);
|
|
}
|
|
|
|
var distributedChildNodesTable = new SideTable();
|
|
var eventParentsTable = new SideTable();
|
|
var insertionParentTable = new SideTable();
|
|
var nextOlderShadowTreeTable = new SideTable();
|
|
var rendererForHostTable = new SideTable();
|
|
var shadowDOMRendererTable = new SideTable();
|
|
|
|
var reprCounter = 0;
|
|
|
|
function repr(node) {
|
|
if (!node.displayName)
|
|
node.displayName = node.nodeName + '-' + ++reprCounter;
|
|
return node.displayName;
|
|
}
|
|
|
|
function distributeChildToInsertionPoint(child, insertionPoint) {
|
|
getDistributedChildNodes(insertionPoint).push(child);
|
|
insertionParentTable.set(child, insertionPoint);
|
|
|
|
var eventParents = eventParentsTable.get(child);
|
|
if (!eventParents)
|
|
eventParentsTable.set(child, eventParents = []);
|
|
eventParents.push(insertionPoint);
|
|
}
|
|
|
|
function resetDistributedChildNodes(insertionPoint) {
|
|
distributedChildNodesTable.set(insertionPoint, []);
|
|
}
|
|
|
|
function getDistributedChildNodes(insertionPoint) {
|
|
return distributedChildNodesTable.get(insertionPoint);
|
|
}
|
|
|
|
function getChildNodesSnapshot(node) {
|
|
var result = [], i = 0;
|
|
for (var child = node.firstChild; child; child = child.nextSibling) {
|
|
result[i++] = child;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Visits all nodes in the tree that fulfils the |predicate|. If the |visitor|
|
|
* function returns |false| the traversal is aborted.
|
|
* @param {!Node} tree
|
|
* @param {function(!Node) : boolean} predicate
|
|
* @param {function(!Node) : *} visitor
|
|
*/
|
|
function visit(tree, predicate, visitor) {
|
|
// This operates on logical DOM.
|
|
var nodes = getChildNodesSnapshot(tree);
|
|
for (var i = 0; i < nodes.length; i++) {
|
|
var node = nodes[i];
|
|
if (predicate(node)) {
|
|
if (visitor(node) === false)
|
|
return;
|
|
} else {
|
|
visit(node, predicate, visitor);
|
|
}
|
|
}
|
|
}
|
|
|
|
// http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-distribution-algorithm
|
|
function distribute(tree, pool) {
|
|
var anyRemoved = false;
|
|
|
|
visit(tree, isActiveInsertionPoint,
|
|
function(insertionPoint) {
|
|
resetDistributedChildNodes(insertionPoint);
|
|
for (var i = 0; i < pool.length; i++) { // 1.2
|
|
var node = pool[i]; // 1.2.1
|
|
if (node === undefined) // removed
|
|
continue;
|
|
if (matchesCriteria(node, insertionPoint)) { // 1.2.2
|
|
distributeChildToInsertionPoint(node, insertionPoint); // 1.2.2.1
|
|
pool[i] = undefined; // 1.2.2.2
|
|
anyRemoved = true;
|
|
}
|
|
}
|
|
});
|
|
|
|
if (!anyRemoved)
|
|
return pool;
|
|
|
|
return pool.filter(function(item) {
|
|
return item !== undefined;
|
|
});
|
|
}
|
|
|
|
// Matching Insertion Points
|
|
// http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#matching-insertion-points
|
|
|
|
// TODO(arv): Verify this... I don't remember why I picked this regexp.
|
|
var selectorMatchRegExp = /^[*.:#[a-zA-Z_|]/;
|
|
|
|
var allowedPseudoRegExp = new RegExp('^:(' + [
|
|
'link',
|
|
'visited',
|
|
'target',
|
|
'enabled',
|
|
'disabled',
|
|
'checked',
|
|
'indeterminate',
|
|
'nth-child',
|
|
'nth-last-child',
|
|
'nth-of-type',
|
|
'nth-last-of-type',
|
|
'first-child',
|
|
'last-child',
|
|
'first-of-type',
|
|
'last-of-type',
|
|
'only-of-type',
|
|
].join('|') + ')');
|
|
|
|
|
|
function oneOf(object, propertyNames) {
|
|
for (var i = 0; i < propertyNames.length; i++) {
|
|
if (propertyNames[i] in object)
|
|
return propertyNames[i];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Element} node
|
|
* @oaram {Element} point The insertion point element.
|
|
* @return {boolean} Whether the node matches the insertion point.
|
|
*/
|
|
function matchesCriteria(node, point) {
|
|
var select = point.getAttribute('select');
|
|
if (!select)
|
|
return true;
|
|
|
|
// Here we know the select attribute is a non empty string.
|
|
select = select.trim();
|
|
if (!select)
|
|
return true;
|
|
|
|
if (node.nodeType !== Node.ELEMENT_NODE)
|
|
return false;
|
|
|
|
// TODO(arv): This does not seem right. Need to check for a simple selector.
|
|
if (!selectorMatchRegExp.test(select))
|
|
return false;
|
|
|
|
if (select[0] === ':' &&!allowedPseudoRegExp.test(select))
|
|
return false;
|
|
|
|
try {
|
|
return node.matches(select);
|
|
} catch (ex) {
|
|
// Invalid selector.
|
|
return false;
|
|
}
|
|
}
|
|
|
|
var request = oneOf(window, [
|
|
'requestAnimationFrame',
|
|
'mozRequestAnimationFrame',
|
|
'webkitRequestAnimationFrame',
|
|
'setTimeout'
|
|
]);
|
|
|
|
var pendingDirtyRenderers = [];
|
|
var renderTimer;
|
|
|
|
function renderAllPending() {
|
|
renderTimer = null;
|
|
pendingDirtyRenderers.forEach(function(owner) {
|
|
owner.render();
|
|
});
|
|
pendingDirtyRenderers = [];
|
|
}
|
|
|
|
function ShadowRenderer(host) {
|
|
this.host = host;
|
|
this.dirty = false;
|
|
this.associateNode(host);
|
|
}
|
|
|
|
function getRendererForHost(host) {
|
|
var renderer = rendererForHostTable.get(host);
|
|
if (!renderer) {
|
|
renderer = new ShadowRenderer(host);
|
|
rendererForHostTable.set(host, renderer);
|
|
}
|
|
return renderer;
|
|
}
|
|
|
|
ShadowRenderer.prototype = {
|
|
// http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#rendering-shadow-trees
|
|
render: function() {
|
|
if (!this.dirty)
|
|
return;
|
|
|
|
var host = this.host;
|
|
this.treeComposition();
|
|
var shadowDOM = host.shadowRoot;
|
|
if (!shadowDOM)
|
|
return;
|
|
|
|
this.removeAllChildNodes(this.host);
|
|
|
|
var shadowDOMChildNodes = getChildNodesSnapshot(shadowDOM);
|
|
shadowDOMChildNodes.forEach(function(node) {
|
|
this.renderNode(host, shadowDOM, node, false);
|
|
}, this);
|
|
|
|
this.dirty = false;
|
|
},
|
|
|
|
invalidate: function() {
|
|
if (!this.dirty) {
|
|
this.dirty = true;
|
|
pendingDirtyRenderers.push(this);
|
|
if (renderTimer)
|
|
return;
|
|
renderTimer = window[request](renderAllPending, 0);
|
|
}
|
|
},
|
|
|
|
renderNode: function(visualParent, tree, node, isNested) {
|
|
if (isShadowHost(node)) {
|
|
this.appendChild(visualParent, node);
|
|
var renderer = getRendererForHost(node);
|
|
renderer.dirty = true; // Need to rerender due to reprojection.
|
|
renderer.render();
|
|
} else if (isInsertionPoint(node)) {
|
|
this.renderInsertionPoint(visualParent, tree, node, isNested);
|
|
} else if (isShadowInsertionPoint(node)) {
|
|
this.renderShadowInsertionPoint(visualParent, tree, node);
|
|
} else {
|
|
this.renderAsAnyDomTree(visualParent, tree, node, isNested);
|
|
}
|
|
},
|
|
|
|
renderAsAnyDomTree: function(visualParent, tree, child, isNested) {
|
|
this.appendChild(visualParent, child);
|
|
|
|
if (isShadowHost(child)) {
|
|
render(child);
|
|
} else {
|
|
var parent = child;
|
|
var logicalChildNodes = getChildNodesSnapshot(parent);
|
|
logicalChildNodes.forEach(function(node) {
|
|
this.renderNode(parent, tree, node, isNested);
|
|
}, this);
|
|
}
|
|
},
|
|
|
|
renderInsertionPoint: function(visualParent, tree, insertionPoint, isNested) {
|
|
var distributedChildNodes = getDistributedChildNodes(insertionPoint);
|
|
if (distributedChildNodes.length) {
|
|
this.removeAllChildNodes(insertionPoint);
|
|
|
|
distributedChildNodes.forEach(function(child) {
|
|
if (isInsertionPoint(child) && isNested)
|
|
this.renderInsertionPoint(visualParent, tree, child, isNested);
|
|
else
|
|
this.renderAsAnyDomTree(visualParent, tree, child, isNested);
|
|
}, this);
|
|
} else {
|
|
this.renderFallbackContent(visualParent, insertionPoint);
|
|
}
|
|
this.remove(insertionPoint);
|
|
},
|
|
|
|
renderShadowInsertionPoint: function(visualParent, tree, shadowInsertionPoint) {
|
|
var nextOlderTree = getNextOlderTree(tree);
|
|
if (nextOlderTree) {
|
|
// This makes ShadowRoot have its insertionParent be the <shadow>.
|
|
insertionParentTable.set(nextOlderTree, shadowInsertionPoint);
|
|
shadowInsertionPoint.olderShadowRoot_ = nextOlderTree;
|
|
this.remove(shadowInsertionPoint);
|
|
var shadowDOMChildNodes = getChildNodesSnapshot(nextOlderTree);
|
|
shadowDOMChildNodes.forEach(function(node) {
|
|
this.renderNode(visualParent, nextOlderTree, node, true);
|
|
}, this);
|
|
} else {
|
|
this.renderFallbackContent(visualParent, shadowInsertionPoint);
|
|
}
|
|
},
|
|
|
|
renderFallbackContent: function (visualParent, fallbackHost) {
|
|
var logicalChildNodes = getChildNodesSnapshot(fallbackHost);
|
|
logicalChildNodes.forEach(function(node) {
|
|
this.appendChild(visualParent, node);
|
|
}, this);
|
|
},
|
|
|
|
// http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-tree-composition
|
|
treeComposition: function () {
|
|
var shadowHost = this.host;
|
|
var tree = shadowHost.shadowRoot; // 1.
|
|
var pool = []; // 2.
|
|
var shadowHostChildNodes = getChildNodesSnapshot(shadowHost);
|
|
shadowHostChildNodes.forEach(function(child) { // 3.
|
|
if (isInsertionPoint(child)) { // 3.2.
|
|
var reprojected = getDistributedChildNodes(child); // 3.2.1.
|
|
// if reprojected is undef... reset it?
|
|
if (!reprojected || !reprojected.length) // 3.2.2.
|
|
reprojected = getChildNodesSnapshot(child);
|
|
pool.push.apply(pool, reprojected); // 3.2.3.
|
|
} else {
|
|
pool.push(child); // 3.3.
|
|
}
|
|
});
|
|
|
|
var shadowInsertionPoint, point;
|
|
while (tree) { // 4.
|
|
// 4.1.
|
|
shadowInsertionPoint = undefined; // Reset every iteration.
|
|
visit(tree, isActiveShadowInsertionPoint, function(point) {
|
|
shadowInsertionPoint = point;
|
|
return false;
|
|
});
|
|
point = shadowInsertionPoint;
|
|
|
|
pool = distribute(tree, pool); // 4.2.
|
|
if (point) { // 4.3.
|
|
var nextOlderTree = getNextOlderTree(tree); // 4.3.1.
|
|
if (!nextOlderTree) {
|
|
break; // 4.3.1.1.
|
|
} else {
|
|
tree = nextOlderTree; // 4.3.2.2.
|
|
assignShadowTreeToShadowInsertionPoint(tree, point); // 4.3.2.2.
|
|
continue; // 4.3.2.3.
|
|
}
|
|
} else {
|
|
break; // 4.4.
|
|
}
|
|
}
|
|
},
|
|
|
|
// Visual DOM mutation.
|
|
appendChild: function(parent, child) {
|
|
appendChild(parent, child);
|
|
this.associateNode(child);
|
|
},
|
|
|
|
remove: function(node) {
|
|
remove(node);
|
|
this.associateNode(node);
|
|
},
|
|
|
|
removeAllChildNodes: function(parent) {
|
|
removeAllChildNodes(parent);
|
|
// TODO(arv): Does this need to associate all the nodes with this renderer?
|
|
},
|
|
|
|
associateNode: function(node) {
|
|
// TODO: Clear when moved out of shadow tree.
|
|
shadowDOMRendererTable.set(node, this);
|
|
}
|
|
};
|
|
|
|
function isInsertionPoint(node) {
|
|
// Should this include <shadow>?
|
|
return node.localName === 'content';
|
|
}
|
|
|
|
function isActiveInsertionPoint(node) {
|
|
// <content> inside another <content> or <shadow> is considered inactive.
|
|
return node.localName === 'content';
|
|
}
|
|
|
|
function isShadowInsertionPoint(node) {
|
|
return node.localName === 'shadow';
|
|
}
|
|
|
|
function isActiveShadowInsertionPoint(node) {
|
|
// <shadow> inside another <content> or <shadow> is considered inactive.
|
|
return node.localName === 'shadow';
|
|
}
|
|
|
|
function isShadowHost(shadowHost) {
|
|
return !!shadowHost.shadowRoot;
|
|
}
|
|
|
|
/**
|
|
* @param {WrapperShadowRoot} tree
|
|
*/
|
|
function getNextOlderTree(tree) {
|
|
return nextOlderShadowTreeTable.get(tree);
|
|
}
|
|
|
|
function getShadowTrees(host) {
|
|
var trees = [];
|
|
|
|
for (var tree = host.shadowRoot;
|
|
tree;
|
|
tree = nextOlderShadowTreeTable.get(tree)) {
|
|
trees.push(tree);
|
|
}
|
|
return trees;
|
|
}
|
|
|
|
function assignShadowTreeToShadowInsertionPoint(tree, point) {
|
|
insertionParentTable.set(tree, point);
|
|
}
|
|
|
|
// http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#rendering-shadow-trees
|
|
function render(host) {
|
|
new ShadowRenderer(host).render();
|
|
};
|
|
|
|
Node.prototype.invalidateShadowRenderer = function(force) {
|
|
// TODO: If this is in light DOM we only need to invalidate renderer if this
|
|
// is a direct child of a ShadowRoot.
|
|
// Maybe we should only associate renderers with direct child nodes of a
|
|
// shadow root (and all nodes in the shadow dom).
|
|
var renderer = shadowDOMRendererTable.get(this);
|
|
if (!renderer)
|
|
return false;
|
|
|
|
var p;
|
|
if (force || this.shadowRoot ||
|
|
(p = this.parentNode) && (p.shadowRoot || p instanceof ShadowRoot)) {
|
|
renderer.invalidate();
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
HTMLContentElement.prototype.getDistributedNodes = function() {
|
|
// TODO(arv): We should associate the element with the shadow root so we
|
|
// only have to rerender this ShadowRenderer.
|
|
renderAllPending();
|
|
return getDistributedChildNodes(this);
|
|
};
|
|
|
|
mixin(Node.prototype, {
|
|
get insertionParent() {
|
|
return insertionParentTable.get(this) || null;
|
|
}
|
|
});
|
|
|
|
scope.eventParentsTable = eventParentsTable;
|
|
scope.getRendererForHost = getRendererForHost;
|
|
scope.getShadowTrees = getShadowTrees;
|
|
scope.nextOlderShadowTreeTable = nextOlderShadowTreeTable;
|
|
scope.renderAllPending = renderAllPending;
|
|
|
|
// Exposed for testing
|
|
scope.visual = {
|
|
removeAllChildNodes: removeAllChildNodes,
|
|
appendChild: appendChild,
|
|
removeChild: removeChild
|
|
};
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var GetElementsByInterface = scope.GetElementsByInterface;
|
|
var Node = scope.wrappers.Node;
|
|
var ParentNodeInterface = scope.ParentNodeInterface;
|
|
var SelectorsInterface = scope.SelectorsInterface;
|
|
var defineWrapGetter = scope.defineWrapGetter;
|
|
var elementFromPoint = scope.elementFromPoint;
|
|
var forwardMethodsToWrapper = scope.forwardMethodsToWrapper;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
var unwrap = scope.unwrap;
|
|
var wrap = scope.wrap;
|
|
var wrapEventTargetMethods = scope.wrapEventTargetMethods;
|
|
var wrapNodeList = scope.wrapNodeList;
|
|
|
|
var implementationTable = new SideTable();
|
|
|
|
function Document(node) {
|
|
Node.call(this, node);
|
|
}
|
|
Document.prototype = Object.create(Node.prototype);
|
|
|
|
defineWrapGetter(Document, 'documentElement');
|
|
|
|
// Conceptually both body and head can be in a shadow but suporting that seems
|
|
// overkill at this point.
|
|
defineWrapGetter(Document, 'body');
|
|
defineWrapGetter(Document, 'head');
|
|
|
|
// document cannot be overridden so we override a bunch of its methods
|
|
// directly on the instance.
|
|
|
|
function wrapMethod(name) {
|
|
var original = document[name];
|
|
Document.prototype[name] = function() {
|
|
return wrap(original.apply(this.impl, arguments));
|
|
};
|
|
}
|
|
|
|
[
|
|
'getElementById',
|
|
'createElement',
|
|
'createElementNS',
|
|
'createTextNode',
|
|
'createDocumentFragment',
|
|
'createEvent',
|
|
'createEventNS',
|
|
].forEach(wrapMethod);
|
|
|
|
var originalAdoptNode = document.adoptNode;
|
|
var originalWrite = document.write;
|
|
|
|
mixin(Document.prototype, {
|
|
adoptNode: function(node) {
|
|
originalAdoptNode.call(this.impl, unwrap(node));
|
|
return node;
|
|
},
|
|
elementFromPoint: function(x, y) {
|
|
return elementFromPoint(this, this, x, y);
|
|
},
|
|
write: function(s) {
|
|
var all = this.querySelectorAll('*');
|
|
var last = all[all.length - 1];
|
|
while (last.nextSibling) {
|
|
last = last.nextSibling;
|
|
}
|
|
var p = last.parentNode;
|
|
p.lastChild_ = undefined;
|
|
last.nextSibling_ = undefined;
|
|
originalWrite.call(this.impl, s);
|
|
}
|
|
});
|
|
|
|
// We also override some of the methods on document.body and document.head
|
|
// for convenience.
|
|
forwardMethodsToWrapper([
|
|
window.HTMLBodyElement,
|
|
window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument
|
|
window.HTMLHeadElement,
|
|
], [
|
|
'appendChild',
|
|
'compareDocumentPosition',
|
|
'getElementsByClassName',
|
|
'getElementsByTagName',
|
|
'getElementsByTagNameNS',
|
|
'insertBefore',
|
|
'querySelector',
|
|
'querySelectorAll',
|
|
'removeChild',
|
|
'replaceChild',
|
|
]);
|
|
|
|
forwardMethodsToWrapper([
|
|
window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument
|
|
], [
|
|
'adoptNode',
|
|
'createDocumentFragment',
|
|
'createElement',
|
|
'createElementNS',
|
|
'createEvent',
|
|
'createEventNS',
|
|
'createTextNode',
|
|
'elementFromPoint',
|
|
'getElementById',
|
|
'write',
|
|
]);
|
|
|
|
mixin(Document.prototype, GetElementsByInterface);
|
|
mixin(Document.prototype, ParentNodeInterface);
|
|
mixin(Document.prototype, SelectorsInterface);
|
|
|
|
mixin(Document.prototype, {
|
|
get implementation() {
|
|
var implementation = implementationTable.get(this);
|
|
if (implementation)
|
|
return implementation;
|
|
implementation =
|
|
new DOMImplementation(unwrap(this).implementation);
|
|
implementationTable.set(this, implementation);
|
|
return implementation;
|
|
}
|
|
});
|
|
|
|
registerWrapper(window.Document, Document,
|
|
document.implementation.createHTMLDocument(''));
|
|
|
|
// Both WebKit and Gecko uses HTMLDocument for document. HTML5/DOM only has
|
|
// one Document interface and IE implements the standard correctly.
|
|
if (window.HTMLDocument)
|
|
registerWrapper(window.HTMLDocument, Document);
|
|
|
|
wrapEventTargetMethods([
|
|
window.HTMLBodyElement,
|
|
window.HTMLDocument || window.Document, // Gecko adds these to HTMLDocument
|
|
window.HTMLHeadElement,
|
|
]);
|
|
|
|
function DOMImplementation(impl) {
|
|
this.impl = impl;
|
|
}
|
|
|
|
function wrapImplMethod(constructor, name) {
|
|
var original = document.implementation[name];
|
|
constructor.prototype[name] = function() {
|
|
return wrap(original.apply(this.impl, arguments));
|
|
};
|
|
}
|
|
|
|
function forwardImplMethod(constructor, name) {
|
|
var original = document.implementation[name];
|
|
constructor.prototype[name] = function() {
|
|
return original.apply(this.impl, arguments);
|
|
};
|
|
}
|
|
|
|
wrapImplMethod(DOMImplementation, 'createDocumentType');
|
|
wrapImplMethod(DOMImplementation, 'createDocument');
|
|
wrapImplMethod(DOMImplementation, 'createHTMLDocument');
|
|
forwardImplMethod(DOMImplementation, 'hasFeature');
|
|
|
|
registerWrapper(window.DOMImplementation, DOMImplementation);
|
|
|
|
forwardMethodsToWrapper([
|
|
window.DOMImplementation,
|
|
], [
|
|
'createDocumentType',
|
|
'createDocument',
|
|
'createHTMLDocument',
|
|
'hasFeature',
|
|
]);
|
|
|
|
scope.wrappers.Document = Document;
|
|
scope.wrappers.DOMImplementation = DOMImplementation;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var EventTarget = scope.wrappers.EventTarget;
|
|
var mixin = scope.mixin;
|
|
var registerWrapper = scope.registerWrapper;
|
|
var unwrap = scope.unwrap;
|
|
var unwrapIfNeeded = scope.unwrapIfNeeded;
|
|
var wrap = scope.wrap;
|
|
|
|
var OriginalWindow = window.Window;
|
|
|
|
function Window(impl) {
|
|
EventTarget.call(this, impl);
|
|
}
|
|
Window.prototype = Object.create(EventTarget.prototype);
|
|
|
|
var originalGetComputedStyle = window.getComputedStyle;
|
|
OriginalWindow.prototype.getComputedStyle = function(el, pseudo) {
|
|
return originalGetComputedStyle.call(this || window, unwrapIfNeeded(el),
|
|
pseudo);
|
|
};
|
|
|
|
['addEventListener', 'removeEventListener', 'dispatchEvent'].forEach(
|
|
function(name) {
|
|
OriginalWindow.prototype[name] = function() {
|
|
var w = wrap(this || window);
|
|
return w[name].apply(w, arguments);
|
|
};
|
|
});
|
|
|
|
mixin(Window.prototype, {
|
|
getComputedStyle: function(el, pseudo) {
|
|
return originalGetComputedStyle.call(unwrap(this), unwrapIfNeeded(el),
|
|
pseudo);
|
|
}
|
|
});
|
|
|
|
registerWrapper(OriginalWindow, Window);
|
|
|
|
scope.wrappers.Window = Window;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var defineGetter = scope.defineGetter;
|
|
var defineWrapGetter = scope.defineWrapGetter;
|
|
var registerWrapper = scope.registerWrapper;
|
|
var unwrapIfNeeded = scope.unwrapIfNeeded;
|
|
var wrapNodeList = scope.wrapNodeList;
|
|
var wrappers = scope.wrappers;
|
|
|
|
var OriginalMutationObserver = window.MutationObserver ||
|
|
window.WebKitMutationObserver;
|
|
|
|
if (!OriginalMutationObserver)
|
|
return;
|
|
|
|
var OriginalMutationRecord = window.MutationRecord;
|
|
|
|
function MutationRecord(impl) {
|
|
this.impl = impl;
|
|
}
|
|
|
|
MutationRecord.prototype = {
|
|
get addedNodes() {
|
|
return wrapNodeList(this.impl.addedNodes);
|
|
},
|
|
get removedNodes() {
|
|
return wrapNodeList(this.impl.removedNodes);
|
|
}
|
|
};
|
|
|
|
['target', 'previousSibling', 'nextSibling'].forEach(function(name) {
|
|
defineWrapGetter(MutationRecord, name);
|
|
});
|
|
|
|
// WebKit/Blink treats these as instance properties so we override
|
|
[
|
|
'type',
|
|
'attributeName',
|
|
'attributeNamespace',
|
|
'oldValue'
|
|
].forEach(function(name) {
|
|
defineGetter(MutationRecord, name, function() {
|
|
return this.impl[name];
|
|
});
|
|
});
|
|
|
|
if (OriginalMutationRecord)
|
|
registerWrapper(OriginalMutationRecord, MutationRecord);
|
|
|
|
function wrapRecord(record) {
|
|
return new MutationRecord(record);
|
|
}
|
|
|
|
function wrapRecords(records) {
|
|
return records.map(wrapRecord);
|
|
}
|
|
|
|
function MutationObserver(callback) {
|
|
var self = this;
|
|
this.impl = new OriginalMutationObserver(function(mutations, observer) {
|
|
callback.call(self, wrapRecords(mutations), self);
|
|
});
|
|
}
|
|
|
|
var OriginalNode = window.Node;
|
|
|
|
MutationObserver.prototype = {
|
|
observe: function(target, options) {
|
|
this.impl.observe(unwrapIfNeeded(target), options);
|
|
},
|
|
disconnect: function() {
|
|
this.impl.disconnect();
|
|
},
|
|
takeRecords: function() {
|
|
return wrapRecords(this.impl.takeRecords());
|
|
}
|
|
};
|
|
|
|
scope.wrappers.MutationObserver = MutationObserver;
|
|
scope.wrappers.MutationRecord = MutationRecord;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
|
|
// Copyright 2013 The Polymer Authors. All rights reserved.
|
|
// Use of this source code is goverened by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
'use strict';
|
|
|
|
var isWrapperFor = scope.isWrapperFor;
|
|
|
|
// This is a list of the elements we currently override the global constructor
|
|
// for.
|
|
var elements = {
|
|
'a': 'HTMLAnchorElement',
|
|
'applet': 'HTMLAppletElement',
|
|
'area': 'HTMLAreaElement',
|
|
'audio': 'HTMLAudioElement',
|
|
'br': 'HTMLBRElement',
|
|
'base': 'HTMLBaseElement',
|
|
'body': 'HTMLBodyElement',
|
|
'button': 'HTMLButtonElement',
|
|
'canvas': 'HTMLCanvasElement',
|
|
// 'command': 'HTMLCommandElement', // Not fully implemented in Gecko.
|
|
'dl': 'HTMLDListElement',
|
|
'datalist': 'HTMLDataListElement',
|
|
'dir': 'HTMLDirectoryElement',
|
|
'div': 'HTMLDivElement',
|
|
'embed': 'HTMLEmbedElement',
|
|
'fieldset': 'HTMLFieldSetElement',
|
|
'font': 'HTMLFontElement',
|
|
'form': 'HTMLFormElement',
|
|
'frame': 'HTMLFrameElement',
|
|
'frameset': 'HTMLFrameSetElement',
|
|
'hr': 'HTMLHRElement',
|
|
'head': 'HTMLHeadElement',
|
|
'h1': 'HTMLHeadingElement',
|
|
'html': 'HTMLHtmlElement',
|
|
'iframe': 'HTMLIFrameElement',
|
|
|
|
// Uses HTMLSpanElement in Firefox.
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=843881
|
|
// 'image',
|
|
|
|
'input': 'HTMLInputElement',
|
|
'li': 'HTMLLIElement',
|
|
'label': 'HTMLLabelElement',
|
|
'legend': 'HTMLLegendElement',
|
|
'link': 'HTMLLinkElement',
|
|
'map': 'HTMLMapElement',
|
|
// 'media', Covered by audio and video
|
|
'menu': 'HTMLMenuElement',
|
|
'menuitem': 'HTMLMenuItemElement',
|
|
'meta': 'HTMLMetaElement',
|
|
'meter': 'HTMLMeterElement',
|
|
'del': 'HTMLModElement',
|
|
'ol': 'HTMLOListElement',
|
|
'object': 'HTMLObjectElement',
|
|
'optgroup': 'HTMLOptGroupElement',
|
|
'option': 'HTMLOptionElement',
|
|
'output': 'HTMLOutputElement',
|
|
'p': 'HTMLParagraphElement',
|
|
'param': 'HTMLParamElement',
|
|
'pre': 'HTMLPreElement',
|
|
'progress': 'HTMLProgressElement',
|
|
'q': 'HTMLQuoteElement',
|
|
'script': 'HTMLScriptElement',
|
|
'select': 'HTMLSelectElement',
|
|
'source': 'HTMLSourceElement',
|
|
'span': 'HTMLSpanElement',
|
|
'style': 'HTMLStyleElement',
|
|
'caption': 'HTMLTableCaptionElement',
|
|
// WebKit and Moz are wrong:
|
|
// https://bugs.webkit.org/show_bug.cgi?id=111469
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=848096
|
|
// 'td': 'HTMLTableCellElement',
|
|
'col': 'HTMLTableColElement',
|
|
'table': 'HTMLTableElement',
|
|
'tr': 'HTMLTableRowElement',
|
|
'thead': 'HTMLTableSectionElement',
|
|
'tbody': 'HTMLTableSectionElement',
|
|
'textarea': 'HTMLTextAreaElement',
|
|
'title': 'HTMLTitleElement',
|
|
'ul': 'HTMLUListElement',
|
|
'video': 'HTMLVideoElement',
|
|
};
|
|
|
|
function overrideConstructor(tagName) {
|
|
var nativeConstructorName = elements[tagName];
|
|
var nativeConstructor = window[nativeConstructorName];
|
|
if (!nativeConstructor)
|
|
return;
|
|
var element = document.createElement(tagName);
|
|
var wrapperConstructor = element.constructor;
|
|
window[nativeConstructorName] = wrapperConstructor;
|
|
}
|
|
|
|
Object.keys(elements).forEach(overrideConstructor);
|
|
|
|
Object.getOwnPropertyNames(scope.wrappers).forEach(function(name) {
|
|
window[name] = scope.wrappers[name]
|
|
});
|
|
|
|
// Export for testing.
|
|
scope.knownElements = elements;
|
|
|
|
})(this.ShadowDOMPolyfill);
|
|
/*
|
|
* 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 isWrapper = ShadowDOMPolyfill.isWrapper;
|
|
var unwrap = ShadowDOMPolyfill.unwrap;
|
|
function getTag(obj) {
|
|
if (obj instanceof NodeList) return 'NodeList';
|
|
if (obj instanceof ShadowRoot) return 'ShadowRoot';
|
|
if (obj instanceof MutationRecord) return 'MutationRecord';
|
|
if (obj instanceof MutationObserver) return 'MutationObserver';
|
|
|
|
if (isWrapper(obj)) {
|
|
obj = unwrap(obj);
|
|
|
|
// Fix up class names for Firefox. For some of them like
|
|
// HTMLFormElement and HTMLInputElement, the "constructor" property of
|
|
// the unwrapped nodes points at the wrapper for some reason.
|
|
// TODO(jmesserly): figure out why this is happening.
|
|
var ctor = obj.constructor;
|
|
if (ctor && ctor._ShadowDOMPolyfill$isGeneratedWrapper) {
|
|
var name = ctor._ShadowDOMPolyfill$cacheTag_;
|
|
if (!name) {
|
|
name = Object.prototype.toString.call(obj);
|
|
name = name.substring(8, name.length - 1);
|
|
ctor._ShadowDOMPolyfill$cacheTag_ = name;
|
|
}
|
|
return name;
|
|
}
|
|
}
|
|
return originalGetTag(obj);
|
|
}
|
|
|
|
return getTag;
|
|
};
|
|
})();
|
|
|
|
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
var Platform = {};
|
|
|
|
/*
|
|
* Copyright 2012 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.
|
|
*/
|
|
|
|
/*
|
|
This is a limited shim for ShadowDOM css styling.
|
|
https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#styles
|
|
|
|
The intention here is to support only the styling features which can be
|
|
relatively simply implemented. The goal is to allow users to avoid the
|
|
most obvious pitfalls and do so without compromising performance significantly.
|
|
For ShadowDOM styling that's not covered here, a set of best practices
|
|
can be provided that should allow users to accomplish more complex styling.
|
|
|
|
The following is a list of specific ShadowDOM styling features and a brief
|
|
discussion of the approach used to shim.
|
|
|
|
Shimmed features:
|
|
|
|
* @host: ShadowDOM allows styling of the shadowRoot's host element using the
|
|
@host rule. To shim this feature, the @host styles are reformatted and
|
|
prefixed with a given scope name and promoted to a document level stylesheet.
|
|
For example, given a scope name of .foo, a rule like this:
|
|
|
|
@host {
|
|
* {
|
|
background: red;
|
|
}
|
|
}
|
|
|
|
becomes:
|
|
|
|
.foo {
|
|
background: red;
|
|
}
|
|
|
|
* encapsultion: Styles defined within ShadowDOM, apply only to
|
|
dom inside the ShadowDOM. Polymer uses one of two techniques to imlement
|
|
this feature.
|
|
|
|
By default, rules are prefixed with the host element tag name
|
|
as a descendant selector. This ensures styling does not leak out of the 'top'
|
|
of the element's ShadowDOM. For example,
|
|
|
|
div {
|
|
font-weight: bold;
|
|
}
|
|
|
|
becomes:
|
|
|
|
x-foo div {
|
|
font-weight: bold;
|
|
}
|
|
|
|
becomes:
|
|
|
|
|
|
Alternatively, if Platform.ShadowCSS.strictStyling is set to true then
|
|
selectors are scoped by adding an attribute selector suffix to each
|
|
simple selector that contains the host element tag name. Each element
|
|
in the element's ShadowDOM template is also given the scope attribute.
|
|
Thus, these rules match only elements that have the scope attribute.
|
|
For example, given a scope name of x-foo, a rule like this:
|
|
|
|
div {
|
|
font-weight: bold;
|
|
}
|
|
|
|
becomes:
|
|
|
|
div[x-foo] {
|
|
font-weight: bold;
|
|
}
|
|
|
|
Note that elements that are dynamically added to a scope must have the scope
|
|
selector added to them manually.
|
|
|
|
* ::pseudo: These rules are converted to rules that take advantage of the
|
|
pseudo attribute. For example, a shadowRoot like this inside an x-foo
|
|
|
|
<div pseudo="x-special">Special</div>
|
|
|
|
with a rule like this:
|
|
|
|
x-foo::x-special { ... }
|
|
|
|
becomes:
|
|
|
|
x-foo [pseudo=x-special] { ... }
|
|
|
|
Unaddressed ShadowDOM styling features:
|
|
|
|
* upper/lower bound encapsulation: Styles which are defined outside a
|
|
shadowRoot should not cross the ShadowDOM boundary and should not apply
|
|
inside a shadowRoot.
|
|
|
|
This styling behavior is not emulated. Some possible ways to do this that
|
|
were rejected due to complexity and/or performance concerns include: (1) reset
|
|
every possible property for every possible selector for a given scope name;
|
|
(2) re-implement css in javascript.
|
|
|
|
As an alternative, users should make sure to use selectors
|
|
specific to the scope in which they are working.
|
|
|
|
* ::distributed: This behavior is not emulated. It's often not necessary
|
|
to style the contents of a specific insertion point and instead, descendants
|
|
of the host element can be styled selectively. Users can also create an
|
|
extra node around an insertion point and style that node's contents
|
|
via descendent selectors. For example, with a shadowRoot like this:
|
|
|
|
<style>
|
|
content::-webkit-distributed(div) {
|
|
background: red;
|
|
}
|
|
</style>
|
|
<content></content>
|
|
|
|
could become:
|
|
|
|
<style>
|
|
/ *@polyfill .content-container div * /
|
|
content::-webkit-distributed(div) {
|
|
background: red;
|
|
}
|
|
</style>
|
|
<div class="content-container">
|
|
<content></content>
|
|
</div>
|
|
|
|
Note the use of @polyfill in the comment above a ShadowDOM specific style
|
|
declaration. This is a directive to the styling shim to use the selector
|
|
in comments in lieu of the next selector when running under polyfill.
|
|
*/
|
|
(function(scope) {
|
|
|
|
var ShadowCSS = {
|
|
strictStyling: false,
|
|
registry: {},
|
|
// Shim styles for a given root associated with a name and extendsName
|
|
// 1. cache root styles by name
|
|
// 2. optionally tag root nodes with scope name
|
|
// 3. shim polyfill directives /* @polyfill */
|
|
// 4. shim @host and scoping
|
|
shimStyling: function(root, name, extendsName) {
|
|
if (root) {
|
|
// use caching to make working with styles nodes easier and to facilitate
|
|
// lookup of extendee
|
|
var def = this.registerDefinition(root, name, extendsName);
|
|
// find styles and apply shimming...
|
|
if (this.strictStyling) {
|
|
this.applyScopeToContent(root, name);
|
|
}
|
|
this.shimPolyfillDirectives(def.rootStyles, name);
|
|
this.applyShimming(def.scopeStyles, name);
|
|
}
|
|
},
|
|
// Shim styles to be placed inside a shadowRoot.
|
|
// 1. shim polyfill directives /* @polyfill */
|
|
// 2. shim @host and scoping
|
|
shimShadowDOMStyling: function(styles, name) {
|
|
this.shimPolyfillDirectives(styles, name);
|
|
this.applyShimming(styles, name);
|
|
},
|
|
registerDefinition: function(root, name, extendsName) {
|
|
var def = this.registry[name] = {
|
|
root: root,
|
|
name: name,
|
|
extendsName: extendsName
|
|
}
|
|
var styles = root.querySelectorAll('style');
|
|
styles = styles ? Array.prototype.slice.call(styles, 0) : [];
|
|
def.rootStyles = styles;
|
|
def.scopeStyles = def.rootStyles;
|
|
var extendee = this.registry[def.extendsName];
|
|
if (extendee) {
|
|
def.scopeStyles = def.scopeStyles.concat(extendee.scopeStyles);
|
|
}
|
|
return def;
|
|
},
|
|
applyScopeToContent: function(root, name) {
|
|
if (root) {
|
|
// add the name attribute to each node in root.
|
|
Array.prototype.forEach.call(root.querySelectorAll('*'),
|
|
function(node) {
|
|
node.setAttribute(name, '');
|
|
});
|
|
// and template contents too
|
|
Array.prototype.forEach.call(root.querySelectorAll('template'),
|
|
function(template) {
|
|
this.applyScopeToContent(template.content, name);
|
|
},
|
|
this);
|
|
}
|
|
},
|
|
/*
|
|
* Process styles to convert native ShadowDOM rules that will trip
|
|
* up the css parser; we rely on decorating the stylesheet with comments.
|
|
*
|
|
* For example, we convert this rule:
|
|
*
|
|
* (comment start) @polyfill @host g-menu-item (comment end)
|
|
* shadow::-webkit-distributed(g-menu-item) {
|
|
*
|
|
* to this:
|
|
*
|
|
* scopeName g-menu-item {
|
|
*
|
|
**/
|
|
shimPolyfillDirectives: function(styles, name) {
|
|
if (styles) {
|
|
Array.prototype.forEach.call(styles, function(s) {
|
|
s.textContent = this.convertPolyfillDirectives(s.textContent, name);
|
|
}, this);
|
|
}
|
|
},
|
|
convertPolyfillDirectives: function(cssText, name) {
|
|
var r = '', l = 0, matches, selector;
|
|
while (matches = cssPolyfillCommentRe.exec(cssText)) {
|
|
r += cssText.substring(l, matches.index);
|
|
// remove end comment delimiter (*/)
|
|
selector = matches[1].slice(0, -2).replace(hostRe, name);
|
|
r += this.scopeSelector(selector, name) + '{';
|
|
l = cssPolyfillCommentRe.lastIndex;
|
|
}
|
|
r += cssText.substring(l, cssText.length);
|
|
return r;
|
|
},
|
|
// apply @host and scope shimming
|
|
applyShimming: function(styles, name) {
|
|
var cssText = this.shimAtHost(styles, name);
|
|
cssText += this.shimScoping(styles, name);
|
|
addCssToDocument(cssText);
|
|
},
|
|
// form: @host { .foo { declarations } }
|
|
// becomes: scopeName.foo { declarations }
|
|
shimAtHost: function(styles, name) {
|
|
if (styles) {
|
|
return this.convertAtHostStyles(styles, name);
|
|
}
|
|
},
|
|
convertAtHostStyles: function(styles, name) {
|
|
var cssText = stylesToCssText(styles);
|
|
var r = '', l=0, matches;
|
|
while (matches = hostRuleRe.exec(cssText)) {
|
|
r += cssText.substring(l, matches.index);
|
|
r += this.scopeHostCss(matches[1], name);
|
|
l = hostRuleRe.lastIndex;
|
|
}
|
|
r += cssText.substring(l, cssText.length);
|
|
var re = new RegExp('^' + name + selectorReSuffix, 'm');
|
|
var cssText = rulesToCss(this.findAtHostRules(cssToRules(r),
|
|
re));
|
|
return cssText;
|
|
},
|
|
scopeHostCss: function(cssText, name) {
|
|
var r = '', matches;
|
|
while (matches = selectorRe.exec(cssText)) {
|
|
r += this.scopeHostSelector(matches[1], name) +' ' + matches[2] + '\n\t';
|
|
}
|
|
return r;
|
|
},
|
|
// supports scopig by name and [is=name] syntax
|
|
scopeHostSelector: function(selector, name) {
|
|
var r = [], parts = selector.split(','), is = '[is=' + name + ']';
|
|
parts.forEach(function(p) {
|
|
p = p.trim();
|
|
// selector: *|:scope -> name
|
|
if (p.match(hostElementRe)) {
|
|
p = p.replace(hostElementRe, name + '$1$3, ' + is + '$1$3');
|
|
// selector: .foo -> name.foo, [bar] -> name[bar]
|
|
} else if (p.match(hostFixableRe)) {
|
|
p = name + p + ', ' + is + p;
|
|
}
|
|
r.push(p);
|
|
}, this);
|
|
return r.join(', ');
|
|
},
|
|
// consider styles that do not include component name in the selector to be
|
|
// unscoped and in need of promotion;
|
|
// for convenience, also consider keyframe rules this way.
|
|
findAtHostRules: function(cssRules, matcher) {
|
|
return Array.prototype.filter.call(cssRules,
|
|
this.isHostRule.bind(this, matcher));
|
|
},
|
|
isHostRule: function(matcher, cssRule) {
|
|
return (cssRule.selectorText && cssRule.selectorText.match(matcher)) ||
|
|
(cssRule.cssRules && this.findAtHostRules(cssRule.cssRules, matcher).length) ||
|
|
(cssRule.type == CSSRule.WEBKIT_KEYFRAMES_RULE);
|
|
},
|
|
/* Ensure styles are scoped. Pseudo-scoping takes a rule like:
|
|
*
|
|
* .foo {... }
|
|
*
|
|
* and converts this to
|
|
*
|
|
* scopeName .foo { ... }
|
|
*/
|
|
shimScoping: function(styles, name) {
|
|
if (styles) {
|
|
return this.convertScopedStyles(styles, name);
|
|
}
|
|
},
|
|
convertScopedStyles: function(styles, name) {
|
|
Array.prototype.forEach.call(styles, function(s) {
|
|
if (s.parentNode) {
|
|
s.parentNode.removeChild(s);
|
|
}
|
|
});
|
|
var cssText = stylesToCssText(styles).replace(hostRuleRe, '');
|
|
cssText = this.convertPseudos(cssText);
|
|
var rules = cssToRules(cssText);
|
|
cssText = this.scopeRules(rules, name);
|
|
return cssText;
|
|
},
|
|
convertPseudos: function(cssText) {
|
|
return cssText.replace(cssPseudoRe, ' [pseudo=$1]');
|
|
},
|
|
// change a selector like 'div' to 'name div'
|
|
scopeRules: function(cssRules, name) {
|
|
var cssText = '';
|
|
Array.prototype.forEach.call(cssRules, function(rule) {
|
|
if (rule.selectorText && (rule.style && rule.style.cssText)) {
|
|
cssText += this.scopeSelector(rule.selectorText, name,
|
|
this.strictStyling) + ' {\n\t';
|
|
cssText += this.propertiesFromRule(rule) + '\n}\n\n';
|
|
} else if (rule.media) {
|
|
cssText += '@media ' + rule.media.mediaText + ' {\n';
|
|
cssText += this.scopeRules(rule.cssRules, name);
|
|
cssText += '\n}\n\n';
|
|
} else if (rule.cssText) {
|
|
cssText += rule.cssText + '\n\n';
|
|
}
|
|
}, this);
|
|
return cssText;
|
|
},
|
|
scopeSelector: function(selector, name, strict) {
|
|
var r = [], parts = selector.split(',');
|
|
parts.forEach(function(p) {
|
|
p = p.trim();
|
|
if (this.selectorNeedsScoping(p, name)) {
|
|
p = strict ? this.applyStrictSelectorScope(p, name) :
|
|
this.applySimpleSelectorScope(p, name);
|
|
}
|
|
r.push(p);
|
|
}, this);
|
|
return r.join(', ');
|
|
},
|
|
selectorNeedsScoping: function(selector, name) {
|
|
var matchScope = '(' + name + '|\\[is=' + name + '\\])';
|
|
var re = new RegExp('^' + matchScope + selectorReSuffix, 'm');
|
|
return !selector.match(re);
|
|
},
|
|
// scope via name and [is=name]
|
|
applySimpleSelectorScope: function(selector, name) {
|
|
return name + ' ' + selector + ', ' + '[is=' + name + '] ' + selector;
|
|
},
|
|
// return a selector with [name] suffix on each simple selector
|
|
// e.g. .foo.bar > .zot becomes .foo[name].bar[name] > .zot[name]
|
|
applyStrictSelectorScope: function(selector, name) {
|
|
var splits = [' ', '>', '+', '~'],
|
|
scoped = selector,
|
|
attrName = '[' + name + ']';
|
|
splits.forEach(function(sep) {
|
|
var parts = scoped.split(sep);
|
|
scoped = parts.map(function(p) {
|
|
var t = p.trim();
|
|
if (t && (splits.indexOf(t) < 0) && (t.indexOf(attrName) < 0)) {
|
|
p = t.replace(/([^:]*)(:*)(.*)/, '$1' + attrName + '$2$3')
|
|
}
|
|
return p;
|
|
}).join(sep);
|
|
});
|
|
return scoped;
|
|
},
|
|
propertiesFromRule: function(rule) {
|
|
var properties = rule.style.cssText;
|
|
// TODO(sorvell): Chrome cssom incorrectly removes quotes from the content
|
|
// property. (https://code.google.com/p/chromium/issues/detail?id=247231)
|
|
if (rule.style.content && !rule.style.content.match(/['"]+/)) {
|
|
properties = 'content: \'' + rule.style.content + '\';\n' +
|
|
rule.style.cssText.replace(/content:[^;]*;/g, '');
|
|
}
|
|
return properties;
|
|
}
|
|
};
|
|
|
|
var hostRuleRe = /@host[^{]*{(([^}]*?{[^{]*?}[\s\S]*?)+)}/gim,
|
|
selectorRe = /([^{]*)({[\s\S]*?})/gim,
|
|
hostElementRe = /(.*)((?:\*)|(?:\:scope))(.*)/,
|
|
hostFixableRe = /^[.\[:]/,
|
|
cssCommentRe = /\/\*[^*]*\*+([^/*][^*]*\*+)*\//gim,
|
|
cssPolyfillCommentRe = /\/\*\s*@polyfill ([^*]*\*+([^/*][^*]*\*+)*\/)([^{]*?){/gim,
|
|
cssPseudoRe = /::(x-[^\s{,(]*)/gim,
|
|
selectorReSuffix = '([>\\s~+\[.,{:][\\s\\S]*)?$',
|
|
hostRe = /@host/gim;
|
|
|
|
function stylesToCssText(styles, preserveComments) {
|
|
var cssText = '';
|
|
Array.prototype.forEach.call(styles, function(s) {
|
|
cssText += s.textContent + '\n\n';
|
|
});
|
|
// strip comments for easier processing
|
|
if (!preserveComments) {
|
|
cssText = cssText.replace(cssCommentRe, '');
|
|
}
|
|
return cssText;
|
|
}
|
|
|
|
function cssToRules(cssText) {
|
|
var style = document.createElement('style');
|
|
style.textContent = cssText;
|
|
document.head.appendChild(style);
|
|
var rules = style.sheet.cssRules;
|
|
style.parentNode.removeChild(style);
|
|
return rules;
|
|
}
|
|
|
|
function rulesToCss(cssRules) {
|
|
for (var i=0, css=[]; i < cssRules.length; i++) {
|
|
css.push(cssRules[i].cssText);
|
|
}
|
|
return css.join('\n\n');
|
|
}
|
|
|
|
function addCssToDocument(cssText) {
|
|
if (cssText) {
|
|
getSheet().appendChild(document.createTextNode(cssText));
|
|
}
|
|
}
|
|
|
|
var sheet;
|
|
function getSheet() {
|
|
if (!sheet) {
|
|
sheet = document.createElement("style");
|
|
sheet.setAttribute('ShadowCSSShim', '');
|
|
}
|
|
return sheet;
|
|
}
|
|
|
|
// add polyfill stylesheet to document
|
|
if (window.ShadowDOMPolyfill) {
|
|
addCssToDocument('style { display: none !important; }\n');
|
|
var head = document.querySelector('head');
|
|
head.insertBefore(getSheet(), head.childNodes[0]);
|
|
}
|
|
|
|
// exports
|
|
scope.ShadowCSS = ShadowCSS;
|
|
|
|
})(window.Platform);
|
|
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
(function(scope) {
|
|
// TODO(terry): Remove shimShadowDOMStyling2 until wrap/unwrap from a
|
|
// dart:html Element to a JS DOM node is available.
|
|
/**
|
|
* Given the content of a STYLE tag and the name of a component shim the CSS
|
|
* and return the new scoped CSS to replace the STYLE's content. The content
|
|
* is replaced in Dart's implementation of PolymerElement.
|
|
*/
|
|
function shimShadowDOMStyling2(styleContent, name) {
|
|
if (window.ShadowDOMPolyfill) {
|
|
var content = this.convertPolyfillDirectives(styleContent, name);
|
|
|
|
// applyShimming calls shimAtHost and shipScoping
|
|
// shimAtHost code:
|
|
var r = '', l=0, matches;
|
|
while (matches = hostRuleRe.exec(content)) {
|
|
r += content.substring(l, matches.index);
|
|
r += this.scopeHostCss(matches[1], name);
|
|
l = hostRuleRe.lastIndex;
|
|
}
|
|
r += content.substring(l, content.length);
|
|
var re = new RegExp('^' + name + selectorReSuffix, 'm');
|
|
var atHostCssText = rulesToCss(this.findAtHostRules(cssToRules(r), re));
|
|
|
|
// shimScoping code:
|
|
// strip comments for easier processing
|
|
content = content.replace(cssCommentRe, '');
|
|
|
|
content = this.convertPseudos(content);
|
|
var rules = cssToRules(content);
|
|
var cssText = this.scopeRules(rules, name);
|
|
|
|
return atHostCssText + cssText;
|
|
}
|
|
}
|
|
|
|
// Minimal copied code from ShadowCSS, that is not exposed in
|
|
// PlatForm.ShadowCSS (local code).
|
|
var hostRuleRe = /@host[^{]*{(([^}]*?{[^{]*?}[\s\S]*?)+)}/gim,
|
|
cssCommentRe = /\/\*[^*]*\*+([^/*][^*]*\*+)*\//gim,
|
|
selectorReSuffix = '([>\\s~+\[.,{:][\\s\\S]*)?$';
|
|
|
|
function cssToRules(cssText) {
|
|
var style = document.createElement('style');
|
|
style.textContent = cssText;
|
|
document.head.appendChild(style);
|
|
var rules = style.sheet.cssRules;
|
|
style.parentNode.removeChild(style);
|
|
return rules;
|
|
}
|
|
|
|
function rulesToCss(cssRules) {
|
|
for (var i=0, css=[]; i < cssRules.length; i++) {
|
|
css.push(cssRules[i].cssText);
|
|
}
|
|
return css.join('\n\n');
|
|
}
|
|
|
|
// exports
|
|
scope.ShadowCSS.shimShadowDOMStyling2 = shimShadowDOMStyling2;
|
|
})(window.Platform);
|
|
|
|
} |