11 lines
15 KiB
JavaScript
11 lines
15 KiB
JavaScript
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/**
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* @license
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* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
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* This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
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* The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
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* The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
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* Code distributed by Google as part of the polymer project is also
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* subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
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*/
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// @version 0.6.1
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"undefined"==typeof WeakMap&&!function(){var e=Object.defineProperty,t=Date.now()%1e9,r=function(){this.name="__st"+(1e9*Math.random()>>>0)+(t++ +"__")};r.prototype={set:function(t,r){var n=t[this.name];return n&&n[0]===t?n[1]=r:e(t,this.name,{value:[t,r],writable:!0}),this},get:function(e){var t;return(t=e[this.name])&&t[0]===e?t[1]:void 0},"delete":function(e){var t=e[this.name];return t&&t[0]===e?(t[0]=t[1]=void 0,!0):!1},has:function(e){var t=e[this.name];return t?t[0]===e:!1}},window.WeakMap=r}(),function(e){function t(e){_.push(e),b||(b=!0,h(n))}function r(e){return window.ShadowDOMPolyfill&&window.ShadowDOMPolyfill.wrapIfNeeded(e)||e}function n(){b=!1;var e=_;_=[],e.sort(function(e,t){return e.uid_-t.uid_});var t=!1;e.forEach(function(e){var r=e.takeRecords();o(e),r.length&&(e.callback_(r,e),t=!0)}),t&&n()}function o(e){e.nodes_.forEach(function(t){var r=v.get(t);r&&r.forEach(function(t){t.observer===e&&t.removeTransientObservers()})})}function i(e,t){for(var r=e;r;r=r.parentNode){var n=v.get(r);if(n)for(var o=0;o<n.length;o++){var i=n[o],a=i.options;if(r===e||a.subtree){var s=t(a);s&&i.enqueue(s)}}}}function a(e){this.callback_=e,this.nodes_=[],this.records_=[],this.uid_=++E}function s(e,t){this.type=e,this.target=t,this.addedNodes=[],this.removedNodes=[],this.previousSibling=null,this.nextSibling=null,this.attributeName=null,this.attributeNamespace=null,this.oldValue=null}function d(e){var t=new s(e.type,e.target);return t.addedNodes=e.addedNodes.slice(),t.removedNodes=e.removedNodes.slice(),t.previousSibling=e.previousSibling,t.nextSibling=e.nextSibling,t.attributeName=e.attributeName,t.attributeNamespace=e.attributeNamespace,t.oldValue=e.oldValue,t}function u(e,t){return y=new s(e,t)}function c(e){return N?N:(N=d(y),N.oldValue=e,N)}function l(){y=N=void 0}function f(e){return e===N||e===y}function p(e,t){return e===t?e:N&&f(e)?N:null}function m(e,t,r){this.observer=e,this.target=t,this.options=r,this.transientObservedNodes=[]}var h,v=new WeakMap;if(/Trident|Edge/.test(navigator.userAgent))h=setTimeout;else if(window.setImmediate)h=window.setImmediate;else{var w=[],g=String(Math.random());window.addEventListener("message",function(e){if(e.data===g){var t=w;w=[],t.forEach(function(e){e()})}}),h=function(e){w.push(e),window.postMessage(g,"*")}}var b=!1,_=[],E=0;a.prototype={observe:function(e,t){if(e=r(e),!t.childList&&!t.attributes&&!t.characterData||t.attributeOldValue&&!t.attributes||t.attributeFilter&&t.attributeFilter.length&&!t.attributes||t.characterDataOldValue&&!t.characterData)throw new SyntaxError;var n=v.get(e);n||v.set(e,n=[]);for(var o,i=0;i<n.length;i++)if(n[i].observer===this){o=n[i],o.removeListeners(),o.options=t;break}o||(o=new m(this,e,t),n.push(o),this.nodes_.push(e)),o.addListeners()},disconnect:function(){this.nodes_.forEach(function(e){for(var t=v.get(e),r=0;r<t.length;r++){var n=t[r];if(n.observer===this){n.removeListeners(),t.splice(r,1);break}}},this),this.records_=[]},takeRecords:function(){var e=this.records_;return this.records_=[],e}};var y,N;m.prototype={enqueue:function(e){var r=this.observer.records_,n=r.length;if(r.length>0){var o=r[n-1],i=p(o,e);if(i)return void(r[n-1]=i)}else t(this.observer);r[n]=e},addListeners:function(){this.addListeners_(this.target)},addListeners_:function(e){var t=this.options;t.attributes&&e.addEventListener("DOMAttrModified",this,!0),t.characterData&&e.addEventListener("DOMCharacterDataModified",this,!0),t.childList&&e.addEventListener("DOMNodeInserted",this,!0),(t.childList||t.subtree)&&e.addEventListener("DOMNodeRemoved",this,!0)},removeListeners:function(){this.removeListeners_(this.target)},removeListeners_:function(e){var t=this.options;t.attributes&&e.removeEventListener("DOMAttrModified",this,!0),t.characterData&&e.removeEventListener("DOMCharacterDataModified",this,!0),t.childList&&e.removeEventListener("DOMNodeInserted",this,!0),(t.childList||t.subtree)&&e.removeEventListener("DOMNodeRemoved",this,!0)},addTransientObserver:function(e){if(e!==this.target){this.addListeners_(e),this.transientObservedNodes.push(e);var t=v.get(e);t||v.set(e,t=[]
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