MD Downloads: pick up iron-list PR to fix unassigned model (stacking)

chrome/browser/resources/md_downloads/crisper.js

 // Copyright (c) 2013 The Chromium 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 assert(condition,opt_message){if(!condition){var message="Assertion failed";if(opt_message)message=message+": "+opt_message;var error=new Error(message);var global=function(){return this}();if(global.traceAssertionsForTesting)console.warn(error.stack);throw error}return condition}function assertNotReached(opt_message){assert(false,opt_message||"Unreachable code hit")}function assertInstanceof(value,type,opt_message){if(!(value instanceof type)){assertNotReached(opt_message||"Value "+value+" is not a[n] "+(type.name||typeof type))}return value}
 // Copyright 2016 The Chromium 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 PromiseResolver(){this.resolve_;this.reject_;this.promise_=new Promise(function(resolve,reject){this.resolve_=resolve;this.reject_=reject}.bind(this))}PromiseResolver.prototype={get promise(){return this.promise_},set promise(p){assertNotReached()},get resolve(){return this.resolve_},set resolve(r){assertNotReached()},get reject(){return this.reject_},set reject(s){assertNotReached()}};
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 var global=this;var WebUIListener;var cr=cr||function(){"use strict";function exportPath(name,opt_object,opt_objectToExportTo){var parts=name.split(".");var cur=opt_objectToExportTo||global;for(var part;parts.length&&(part=parts.shift());){if(!parts.length&&opt_object!==undefined){cur[part]=opt_object}else if(part in cur){cur=cur[part]}else{cur=cur[part]={}}}return cur}function dispatchPropertyChange(target,propertyName,newValue,oldValue){var e=new Event(propertyName+"Change");e.propertyName=propertyName;e.newValue=newValue;e.oldValue=oldValue;target.dispatchEvent(e)}function getAttributeName(jsName){return jsName.replace(/([A-Z])/g,"-$1").toLowerCase()}var PropertyKind={JS:"js",ATTR:"attr",BOOL_ATTR:"boolAttr"};function getGetter(name,kind){switch(kind){case PropertyKind.JS:var privateName=name+"_";return function(){return this[privateName]};case PropertyKind.ATTR:var attributeName=getAttributeName(name);return function(){return this.getAttribute(attributeName)};case PropertyKind.BOOL_ATTR:var attributeName=getAttributeName(name);return function(){return this.hasAttribute(attributeName)}}throw"not reached"}function getSetter(name,kind,opt_setHook){switch(kind){case PropertyKind.JS:var privateName=name+"_";return function(value){var oldValue=this[name];if(value!==oldValue){this[privateName]=value;if(opt_setHook)opt_setHook.call(this,value,oldValue);dispatchPropertyChange(this,name,value,oldValue)}};case PropertyKind.ATTR:var attributeName=getAttributeName(name);return function(value){var oldValue=this[name];if(value!==oldValue){if(value==undefined)this.removeAttribute(attributeName);else this.setAttribute(attributeName,value);if(opt_setHook)opt_setHook.call(this,value,oldValue);dispatchPropertyChange(this,name,value,oldValue)}};case PropertyKind.BOOL_ATTR:var attributeName=getAttributeName(name);return function(value){var oldValue=this[name];if(value!==oldValue){if(value)this.setAttribute(attributeName,name);else this.removeAttribute(attributeName);if(opt_setHook)opt_setHook.call(this,value,oldValue);dispatchPropertyChange(this,name,value,oldValue)}}}throw"not reached"}function defineProperty(obj,name,opt_kind,opt_setHook){if(typeof obj=="function")obj=obj.prototype;var kind=opt_kind||PropertyKind.JS;if(!obj.__lookupGetter__(name))obj.__defineGetter__(name,getGetter(name,kind));if(!obj.__lookupSetter__(name))obj.__defineSetter__(name,getSetter(name,kind,opt_setHook))}var uidCounter=1;function createUid(){return uidCounter++}function getUid(item){if(item.hasOwnProperty("uid"))return item.uid;return item.uid=createUid()}function dispatchSimpleEvent(target,type,opt_bubbles,opt_cancelable){var e=new Event(type,{bubbles:opt_bubbles,cancelable:opt_cancelable===undefined||opt_cancelable});return target.dispatchEvent(e)}function define(name,fun){var obj=exportPath(name);var exports=fun();for(var propertyName in exports){var propertyDescriptor=Object.getOwnPropertyDescriptor(exports,propertyName);if(propertyDescriptor)Object.defineProperty(obj,propertyName,propertyDescriptor)}}function addSingletonGetter(ctor){ctor.getInstance=function(){return ctor.instance_||(ctor.instance_=new ctor)}}function makePublic(ctor,methods,opt_target){methods.forEach(function(method){ctor[method]=function(){var target=opt_target?document.getElementById(opt_target):ctor.getInstance();return target[method+"_"].apply(target,arguments)}})}var chromeSendResolverMap={};function webUIResponse(id,isSuccess,response){var resolver=chromeSendResolverMap[id];delete chromeSendResolverMap[id];if(isSuccess)resolver.resolve(response);else resolver.reject(response)}function sendWithPromise(methodName,var_args){var args=Array.prototype.slice.call(arguments,1);var promiseResolver=new PromiseResolver;var id=methodName+"_"+createUid();chromeSendResolverMap[id]=promiseResolver;chrome.send(methodName,[id].concat(args));return promiseResolver.promise}var webUIListenerMap={};function webUIListenerCallback(event,var_args){var eventListenersMap=webUIListenerMap[event];if(!eventListenersMap){return}var args=Array.prototype.slice.call(arguments,1);for(var listenerId in eventListenersMap){eventListenersMap[listenerId].apply(null,args)}}function addWebUIListener(eventName,callback){webUIListenerMap[eventName]=webUIListenerMap[eventName]||{};var uid=createUid();webUIListenerMap[eventName][uid]=callback;return{eventName:eventName,uid:uid}}function removeWebUIListener(listener){var listenerExists=webUIListenerMap[listener.eventName]&&webUIListenerMap[listener.eventName][listener.uid];if(listenerExists){delete webUIListenerMap[listener.eventName][listener.uid];return true}return false}return{addSingletonGetter:addSingletonGetter,createUid:createUid,define:define,defineProperty:defineProperty,dispatchPropertyChange:dispatchPropertyChange,dispatchSimpleEvent:dispatchSimpleEvent,exportPath:exportPath,getUid:getUid,makePublic:makePublic,PropertyKind:PropertyKind,addWebUIListener:addWebUIListener,removeWebUIListener:removeWebUIListener,sendWithPromise:sendWithPromise,webUIListenerCallback:webUIListenerCallback,webUIResponse:webUIResponse,get doc(){return document},get isMac(){return/Mac/.test(navigator.platform)},get isWindows(){return/Win/.test(navigator.platform)},get isChromeOS(){return/CrOS/.test(navigator.userAgent)},get isLinux(){return/Linux/.test(navigator.userAgent)},get isAndroid(){return/Android/.test(navigator.userAgent)},get isIOS(){return/iPad|iPhone|iPod/.test(navigator.platform)}}}();
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 cr.define("cr.ui",function(){function decorate(source,constr){var elements;if(typeof source=="string")elements=cr.doc.querySelectorAll(source);else elements=[source];for(var i=0,el;el=elements[i];i++){if(!(el instanceof constr))constr.decorate(el)}}function createElementHelper(tagName,opt_bag){var doc;if(opt_bag&&opt_bag.ownerDocument)doc=opt_bag.ownerDocument;else doc=cr.doc;return doc.createElement(tagName)}function define(tagNameOrFunction){var createFunction,tagName;if(typeof tagNameOrFunction=="function"){createFunction=tagNameOrFunction;tagName=""}else{createFunction=createElementHelper;tagName=tagNameOrFunction}function f(opt_propertyBag){var el=createFunction(tagName,opt_propertyBag);f.decorate(el);for(var propertyName in opt_propertyBag){el[propertyName]=opt_propertyBag[propertyName]}return el}f.decorate=function(el){el.__proto__=f.prototype;el.decorate()};return f}function limitInputWidth(el,parentEl,min,opt_scale){el.style.width="10px";var doc=el.ownerDocument;var win=doc.defaultView;var computedStyle=win.getComputedStyle(el);var parentComputedStyle=win.getComputedStyle(parentEl);var rtl=computedStyle.direction=="rtl";var inputRect=el.getBoundingClientRect();var parentRect=parentEl.getBoundingClientRect();var startPos=rtl?parentRect.right-inputRect.right:inputRect.left-parentRect.left;var inner=parseInt(computedStyle.borderLeftWidth,10)+parseInt(computedStyle.paddingLeft,10)+parseInt(computedStyle.paddingRight,10)+parseInt(computedStyle.borderRightWidth,10);var parentPadding=rtl?parseInt(parentComputedStyle.paddingLeft,10):parseInt(parentComputedStyle.paddingRight,10);var max=parentEl.clientWidth-startPos-inner-parentPadding;if(opt_scale)max*=opt_scale;function limit(){if(el.scrollWidth>max){el.style.width=max+"px"}else{el.style.width=0;var sw=el.scrollWidth;if(sw<min){el.style.width=min+"px"}else{el.style.width=sw+"px"}}}el.addEventListener("input",limit);limit()}function toCssPx(pixels){if(!window.isFinite(pixels))console.error("Pixel value is not a number: "+pixels);return Math.round(pixels)+"px"}function swallowDoubleClick(e){var doc=e.target.ownerDocument;var counter=Math.min(1,e.detail);function swallow(e){e.stopPropagation();e.preventDefault()}function onclick(e){if(e.detail>counter){counter=e.detail;swallow(e)}else{doc.removeEventListener("dblclick",swallow,true);doc.removeEventListener("click",onclick,true)}}setTimeout(function(){doc.addEventListener("click",onclick,true);doc.addEventListener("dblclick",swallow,true)},0)}return{decorate:decorate,define:define,limitInputWidth:limitInputWidth,toCssPx:toCssPx,swallowDoubleClick:swallowDoubleClick}});
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 cr.define("cr.ui",function(){function KeyboardShortcut(shortcut){var mods={};var ident="";shortcut.split("|").forEach(function(part){var partLc=part.toLowerCase();switch(partLc){case"alt":case"ctrl":case"meta":case"shift":mods[partLc+"Key"]=true;break;default:if(ident)throw Error("Invalid shortcut");ident=part}});this.ident_=ident;this.mods_=mods}KeyboardShortcut.prototype={matchesEvent:function(e){if(e.key==this.ident_){var mods=this.mods_;return["altKey","ctrlKey","metaKey","shiftKey"].every(function(k){return e[k]==!!mods[k]})}return false}};var Command=cr.ui.define("command");Command.prototype={__proto__:HTMLElement.prototype,decorate:function(){CommandManager.init(assert(this.ownerDocument));if(this.hasAttribute("shortcut"))this.shortcut=this.getAttribute("shortcut")},execute:function(opt_element){if(this.disabled)return;var doc=this.ownerDocument;if(doc.activeElement){var e=new Event("command",{bubbles:true});e.command=this;(opt_element||doc.activeElement).dispatchEvent(e)}},canExecuteChange:function(opt_node){dispatchCanExecuteEvent(this,opt_node||this.ownerDocument.activeElement)},shortcut_:"",get shortcut(){return this.shortcut_},set shortcut(shortcut){var oldShortcut=this.shortcut_;if(shortcut!==oldShortcut){this.keyboardShortcuts_=shortcut.split(/\s+/).map(function(shortcut){return new KeyboardShortcut(shortcut)});this.shortcut_=shortcut;cr.dispatchPropertyChange(this,"shortcut",this.shortcut_,oldShortcut)}},matchesEvent:function(e){if(!this.keyboardShortcuts_)return false;return this.keyboardShortcuts_.some(function(keyboardShortcut){return keyboardShortcut.matchesEvent(e)})}};cr.defineProperty(Command,"label",cr.PropertyKind.ATTR);cr.defineProperty(Command,"disabled",cr.PropertyKind.BOOL_ATTR);cr.defineProperty(Command,"hidden",cr.PropertyKind.BOOL_ATTR);cr.defineProperty(Command,"checked",cr.PropertyKind.BOOL_ATTR);cr.defineProperty(Command,"hideShortcutText",cr.PropertyKind.BOOL_ATTR);function dispatchCanExecuteEvent(command,target){var e=new CanExecuteEvent(command);target.dispatchEvent(e);command.disabled=!e.canExecute}var commandManagers={};function CommandManager(doc){doc.addEventListener("focus",this.handleFocus_.bind(this),true);doc.addEventListener("keydown",this.handleKeyDown_.bind(this),false)}CommandManager.init=function(doc){var uid=cr.getUid(doc);if(!(uid in commandManagers)){commandManagers[uid]=new CommandManager(doc)}};CommandManager.prototype={handleFocus_:function(e){var target=e.target;if(target.menu||target.command)return;var commands=Array.prototype.slice.call(target.ownerDocument.querySelectorAll("command"));commands.forEach(function(command){dispatchCanExecuteEvent(command,target)})},handleKeyDown_:function(e){var target=e.target;var commands=Array.prototype.slice.call(target.ownerDocument.querySelectorAll("command"));for(var i=0,command;command=commands[i];i++){if(command.matchesEvent(e)){command.canExecuteChange();if(!command.disabled){e.preventDefault();e.stopPropagation();command.execute();return}}}}};function CanExecuteEvent(command){var e=new Event("canExecute",{bubbles:true,cancelable:true});e.__proto__=CanExecuteEvent.prototype;e.command=command;return e}CanExecuteEvent.prototype={__proto__:Event.prototype,command:null,canExecute_:false,get canExecute(){return this.canExecute_},set canExecute(canExecute){this.canExecute_=!!canExecute;this.stopPropagation();this.preventDefault()}};return{Command:Command,CanExecuteEvent:CanExecuteEvent}});
 // Copyright (c) 2012 The Chromium 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 $(id){var el=document.getElementById(id);return el?assertInstanceof(el,HTMLElement):null}function getSVGElement(id){var el=document.getElementById(id);return el?assertInstanceof(el,Element):null}function announceAccessibleMessage(msg){var element=document.createElement("div");element.setAttribute("aria-live","polite");element.style.position="fixed";element.style.left="-9999px";element.style.height="0px";element.innerText=msg;document.body.appendChild(element);window.setTimeout(function(){document.body.removeChild(element)},0)}function url(s){var s2=s.replace(/(\(|\)|\,|\s|\'|\"|\\)/g,"\\$1");if(/\\\\$/.test(s2)){s2+=" "}return'url("'+s2+'")'}function parseQueryParams(location){var params={};var query=unescape(location.search.substring(1));var vars=query.split("&");for(var i=0;i<vars.length;i++){var pair=vars[i].split("=");params[pair[0]]=pair[1]}return params}function setQueryParam(location,key,value){var query=parseQueryParams(location);query[encodeURIComponent(key)]=encodeURIComponent(value);var newQuery="";for(var q in query){newQuery+=(newQuery?"&":"?")+q+"="+query[q]}return location.origin+location.pathname+newQuery+location.hash}function findAncestorByClass(el,className){return findAncestor(el,function(el){return el.classList&&el.classList.contains(className)})}function findAncestor(node,predicate){var last=false;while(node!=null&&!(last=predicate(node))){node=node.parentNode}return last?node:null}function swapDomNodes(a,b){var afterA=a.nextSibling;if(afterA==b){swapDomNodes(b,a);return}var aParent=a.parentNode;b.parentNode.replaceChild(a,b);aParent.insertBefore(b,afterA)}function disableTextSelectAndDrag(opt_allowSelectStart,opt_allowDragStart){document.onselectstart=function(e){if(!(opt_allowSelectStart&&opt_allowSelectStart.call(this,e)))e.preventDefault()};document.ondragstart=function(e){if(!(opt_allowDragStart&&opt_allowDragStart.call(this,e)))e.preventDefault()}}function preventDefaultOnPoundLinkClicks(){document.addEventListener("click",function(e){var anchor=findAncestor(e.target,function(el){return el.tagName=="A"});if(anchor&&anchor.getAttribute("href")=="#")e.preventDefault()})}function isRTL(){return document.documentElement.dir=="rtl"}function getRequiredElement(id){return assertInstanceof($(id),HTMLElement,"Missing required element: "+id)}function queryRequiredElement(selectors,opt_context){var element=(opt_context||document).querySelector(selectors);return assertInstanceof(element,HTMLElement,"Missing required element: "+selectors)}["click","auxclick"].forEach(function(eventName){document.addEventListener(eventName,function(e){if(e.button>1)return;if(e.defaultPrevented)return;var eventPath=e.path;var anchor=null;if(eventPath){for(var i=0;i<eventPath.length;i++){var element=eventPath[i];if(element.tagName==="A"&&element.href){anchor=element;break}}}var el=e.target;if(!anchor&&el.nodeType==Node.ELEMENT_NODE&&el.webkitMatchesSelector("A, A *")){while(el.tagName!="A"){el=el.parentElement}anchor=el}if(!anchor)return;anchor=anchor;if((anchor.protocol=="file:"||anchor.protocol=="about:")&&(e.button==0||e.button==1)){chrome.send("navigateToUrl",[anchor.href,anchor.target,e.button,e.altKey,e.ctrlKey,e.metaKey,e.shiftKey]);e.preventDefault()}})});function appendParam(url,key,value){var param=encodeURIComponent(key)+"="+encodeURIComponent(value);if(url.indexOf("?")==-1)return url+"?"+param;return url+"&"+param}function createElementWithClassName(type,className){var elm=document.createElement(type);elm.className=className;return elm}function ensureTransitionEndEvent(el,opt_timeOut){if(opt_timeOut===undefined){var style=getComputedStyle(el);opt_timeOut=parseFloat(style.transitionDuration)*1e3;opt_timeOut+=50}var fired=false;el.addEventListener("webkitTransitionEnd",function f(e){el.removeEventListener("webkitTransitionEnd",f);fired=true});window.setTimeout(function(){if(!fired)cr.dispatchSimpleEvent(el,"webkitTransitionEnd",true)},opt_timeOut)}function scrollTopForDocument(doc){return doc.documentElement.scrollTop||doc.body.scrollTop}function setScrollTopForDocument(doc,value){doc.documentElement.scrollTop=doc.body.scrollTop=value}function scrollLeftForDocument(doc){return doc.documentElement.scrollLeft||doc.body.scrollLeft}function setScrollLeftForDocument(doc,value){doc.documentElement.scrollLeft=doc.body.scrollLeft=value}function HTMLEscape(original){return original.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/'/g,"&#39;")}function elide(original,maxLength){if(original.length<=maxLength)return original;return original.substring(0,maxLength-1)+"…"}function quoteString(str){return str.replace(/([\\\.\+\*\?\[\^\]\$\(\)\{\}\=\!\<\>\|\:])/g,"\\$1")}function listenOnce(target,eventNames,callback){if(!Array.isArray(eventNames))eventNames=eventNames.split(/ +/);var removeAllAndCallCallback=function(event){eventNames.forEach(function(eventName){target.removeEventListener(eventName,removeAllAndCallCallback,false)});return callback(event)};eventNames.forEach(function(eventName){target.addEventListener(eventName,removeAllAndCallCallback,false)})}
 // <if expr="is_ios">
 if(!("key"in KeyboardEvent.prototype)){Object.defineProperty(KeyboardEvent.prototype,"key",{get:function(){if(this.keyCode>=48&&this.keyCode<=57)return String.fromCharCode(this.keyCode);if(this.keyCode>=65&&this.keyCode<=90){var result=String.fromCharCode(this.keyCode).toLowerCase();if(this.shiftKey)result=result.toUpperCase();return result}switch(this.keyCode){case 8:return"Backspace";case 9:return"Tab";case 13:return"Enter";case 16:return"Shift";case 17:return"Control";case 18:return"Alt";case 27:return"Escape";case 32:return" ";case 33:return"PageUp";case 34:return"PageDown";case 35:return"End";case 36:return"Home";case 37:return"ArrowLeft";case 38:return"ArrowUp";case 39:return"ArrowRight";case 40:return"ArrowDown";case 45:return"Insert";case 46:return"Delete";case 91:return"Meta";case 112:return"F1";case 113:return"F2";case 114:return"F3";case 115:return"F4";case 116:return"F5";case 117:return"F6";case 118:return"F7";case 119:return"F8";case 120:return"F9";case 121:return"F10";case 122:return"F11";case 123:return"F12";case 187:return"=";case 189:return"-";case 219:return"[";case 221:return"]"}return"Unidentified"}})}else{window.console.log("KeyboardEvent.Key polyfill not required")}
 // </if>  /* is_ios */
-Polymer.IronResizableBehavior={properties:{_parentResizable:{type:Object,observer:"_parentResizableChanged"},_notifyingDescendant:{type:Boolean,value:false}},listeners:{"iron-request-resize-notifications":"_onIronRequestResizeNotifications"},created:function(){this._interestedResizables=[];this._boundNotifyResize=this.notifyResize.bind(this)},attached:function(){this.fire("iron-request-resize-notifications",null,{node:this,bubbles:true,cancelable:true});if(!this._parentResizable){window.addEventListener("resize",this._boundNotifyResize);this.notifyResize()}},detached:function(){if(this._parentResizable){this._parentResizable.stopResizeNotificationsFor(this)}else{window.removeEventListener("resize",this._boundNotifyResize)}this._parentResizable=null},notifyResize:function(){if(!this.isAttached){return}this._interestedResizables.forEach(function(resizable){if(this.resizerShouldNotify(resizable)){this._notifyDescendant(resizable)}},this);this._fireResize()},assignParentResizable:function(parentResizable){this._parentResizable=parentResizable},stopResizeNotificationsFor:function(target){var index=this._interestedResizables.indexOf(target);if(index>-1){this._interestedResizables.splice(index,1);this.unlisten(target,"iron-resize","_onDescendantIronResize")}},resizerShouldNotify:function(element){return true},_onDescendantIronResize:function(event){if(this._notifyingDescendant){event.stopPropagation();return}if(!Polymer.Settings.useShadow){this._fireResize()}},_fireResize:function(){this.fire("iron-resize",null,{node:this,bubbles:false})},_onIronRequestResizeNotifications:function(event){var target=event.path?event.path[0]:event.target;if(target===this){return}if(this._interestedResizables.indexOf(target)===-1){this._interestedResizables.push(target);this.listen(target,"iron-resize","_onDescendantIronResize")}target.assignParentResizable(this);this._notifyDescendant(target);event.stopPropagation()},_parentResizableChanged:function(parentResizable){if(parentResizable){window.removeEventListener("resize",this._boundNotifyResize)}},_notifyDescendant:function(descendant){if(!this.isAttached){return}this._notifyingDescendant=true;descendant.notifyResize();this._notifyingDescendant=false}};(function(){"use strict";var KEY_IDENTIFIER={"U+0008":"backspace","U+0009":"tab","U+001B":"esc","U+0020":"space","U+007F":"del"};var KEY_CODE={8:"backspace",9:"tab",13:"enter",27:"esc",33:"pageup",34:"pagedown",35:"end",36:"home",32:"space",37:"left",38:"up",39:"right",40:"down",46:"del",106:"*"};var MODIFIER_KEYS={shift:"shiftKey",ctrl:"ctrlKey",alt:"altKey",meta:"metaKey"};var KEY_CHAR=/[a-z0-9*]/;var IDENT_CHAR=/U\+/;var ARROW_KEY=/^arrow/;var SPACE_KEY=/^space(bar)?/;var ESC_KEY=/^escape$/;function transformKey(key,noSpecialChars){var validKey="";if(key){var lKey=key.toLowerCase();if(lKey===" "||SPACE_KEY.test(lKey)){validKey="space"}else if(ESC_KEY.test(lKey)){validKey="esc"}else if(lKey.length==1){if(!noSpecialChars||KEY_CHAR.test(lKey)){validKey=lKey}}else if(ARROW_KEY.test(lKey)){validKey=lKey.replace("arrow","")}else if(lKey=="multiply"){validKey="*"}else{validKey=lKey}}return validKey}function transformKeyIdentifier(keyIdent){var validKey="";if(keyIdent){if(keyIdent in KEY_IDENTIFIER){validKey=KEY_IDENTIFIER[keyIdent]}else if(IDENT_CHAR.test(keyIdent)){keyIdent=parseInt(keyIdent.replace("U+","0x"),16);validKey=String.fromCharCode(keyIdent).toLowerCase()}else{validKey=keyIdent.toLowerCase()}}return validKey}function transformKeyCode(keyCode){var validKey="";if(Number(keyCode)){if(keyCode>=65&&keyCode<=90){validKey=String.fromCharCode(32+keyCode)}else if(keyCode>=112&&keyCode<=123){validKey="f"+(keyCode-112)}else if(keyCode>=48&&keyCode<=57){validKey=String(keyCode-48)}else if(keyCode>=96&&keyCode<=105){validKey=String(keyCode-96)}else{validKey=KEY_CODE[keyCode]}}return validKey}function normalizedKeyForEvent(keyEvent,noSpecialChars){if(keyEvent.key){return transformKey(keyEvent.key,noSpecialChars)}if(keyEvent.detail&&keyEvent.detail.key){return transformKey(keyEvent.detail.key,noSpecialChars)}return transformKeyIdentifier(keyEvent.keyIdentifier)||transformKeyCode(keyEvent.keyCode)||""}function keyComboMatchesEvent(keyCombo,event){var keyEvent=normalizedKeyForEvent(event,keyCombo.hasModifiers);return keyEvent===keyCombo.key&&(!keyCombo.hasModifiers||!!event.shiftKey===!!keyCombo.shiftKey&&!!event.ctrlKey===!!keyCombo.ctrlKey&&!!event.altKey===!!keyCombo.altKey&&!!event.metaKey===!!keyCombo.metaKey)}function parseKeyComboString(keyComboString){if(keyComboString.length===1){return{combo:keyComboString,key:keyComboString,event:"keydown"}}return keyComboString.split("+").reduce(function(parsedKeyCombo,keyComboPart){var eventParts=keyComboPart.split(":");var keyName=eventParts[0];var event=eventParts[1];if(keyName in MODIFIER_KEYS){parsedKeyCombo[MODIFIER_KEYS[keyName]]=true;parsedKeyCombo.hasModifiers=true}else{parsedKeyCombo.key=keyName;parsedKeyCombo.event=event||"keydown"}return parsedKeyCombo},{combo:keyComboString.split(":").shift()})}function parseEventString(eventString){return eventString.trim().split(" ").map(function(keyComboString){return parseKeyComboString(keyComboString)})}Polymer.IronA11yKeysBehavior={properties:{keyEventTarget:{type:Object,value:function(){return this}},stopKeyboardEventPropagation:{type:Boolean,value:false},_boundKeyHandlers:{type:Array,value:function(){return[]}},_imperativeKeyBindings:{type:Object,value:function(){return{}}}},observers:["_resetKeyEventListeners(keyEventTarget, _boundKeyHandlers)"],keyBindings:{},registered:function(){this._prepKeyBindings()},attached:function(){this._listenKeyEventListeners()},detached:function(){this._unlistenKeyEventListeners()},addOwnKeyBinding:function(eventString,handlerName){this._imperativeKeyBindings[eventString]=handlerName;this._prepKeyBindings();this._resetKeyEventListeners()},removeOwnKeyBindings:function(){this._imperativeKeyBindings={};this._prepKeyBindings();this._resetKeyEventListeners()},keyboardEventMatchesKeys:function(event,eventString){var keyCombos=parseEventString(eventString);for(var i=0;i<keyCombos.length;++i){if(keyComboMatchesEvent(keyCombos[i],event)){return true}}return false},_collectKeyBindings:function(){var keyBindings=this.behaviors.map(function(behavior){return behavior.keyBindings});if(keyBindings.indexOf(this.keyBindings)===-1){keyBindings.push(this.keyBindings)}return keyBindings},_prepKeyBindings:function(){this._keyBindings={};this._collectKeyBindings().forEach(function(keyBindings){for(var eventString in keyBindings){this._addKeyBinding(eventString,keyBindings[eventString])}},this);for(var eventString in this._imperativeKeyBindings){this._addKeyBinding(eventString,this._imperativeKeyBindings[eventString])}for(var eventName in this._keyBindings){this._keyBindings[eventName].sort(function(kb1,kb2){var b1=kb1[0].hasModifiers;var b2=kb2[0].hasModifiers;return b1===b2?0:b1?-1:1})}},_addKeyBinding:function(eventString,handlerName){parseEventString(eventString).forEach(function(keyCombo){this._keyBindings[keyCombo.event]=this._keyBindings[keyCombo.event]||[];this._keyBindings[keyCombo.event].push([keyCombo,handlerName])},this)},_resetKeyEventListeners:function(){this._unlistenKeyEventListeners();if(this.isAttached){this._listenKeyEventListeners()}},_listenKeyEventListeners:function(){if(!this.keyEventTarget){return}Object.keys(this._keyBindings).forEach(function(eventName){var keyBindings=this._keyBindings[eventName];var boundKeyHandler=this._onKeyBindingEvent.bind(this,keyBindings);this._boundKeyHandlers.push([this.keyEventTarget,eventName,boundKeyHandler]);this.keyEventTarget.addEventListener(eventName,boundKeyHandler)},this)},_unlistenKeyEventListeners:function(){var keyHandlerTuple;var keyEventTarget;var eventName;var boundKeyHandler;while(this._boundKeyHandlers.length){keyHandlerTuple=this._boundKeyHandlers.pop();keyEventTarget=keyHandlerTuple[0];eventName=keyHandlerTuple[1];boundKeyHandler=keyHandlerTuple[2];keyEventTarget.removeEventListener(eventName,boundKeyHandler)}},_onKeyBindingEvent:function(keyBindings,event){if(this.stopKeyboardEventPropagation){event.stopPropagation()}if(event.defaultPrevented){return}for(var i=0;i<keyBindings.length;i++){var keyCombo=keyBindings[i][0];var handlerName=keyBindings[i][1];if(keyComboMatchesEvent(keyCombo,event)){this._triggerKeyHandler(keyCombo,handlerName,event);if(event.defaultPrevented){return}}}},_triggerKeyHandler:function(keyCombo,handlerName,keyboardEvent){var detail=Object.create(keyCombo);detail.keyboardEvent=keyboardEvent;var event=new CustomEvent(keyCombo.event,{detail:detail,cancelable:true});this[handlerName].call(this,event);if(event.defaultPrevented){keyboardEvent.preventDefault()}}}})();Polymer.IronScrollTargetBehavior={properties:{scrollTarget:{type:HTMLElement,value:function(){return this._defaultScrollTarget}}},observers:["_scrollTargetChanged(scrollTarget, isAttached)"],_shouldHaveListener:true,_scrollTargetChanged:function(scrollTarget,isAttached){var eventTarget;if(this._oldScrollTarget){this._toggleScrollListener(false,this._oldScrollTarget);this._oldScrollTarget=null}if(!isAttached){return}if(scrollTarget==="document"){this.scrollTarget=this._doc}else if(typeof scrollTarget==="string"){this.scrollTarget=this.domHost?this.domHost.$[scrollTarget]:Polymer.dom(this.ownerDocument).querySelector("#"+scrollTarget)}else if(this._isValidScrollTarget()){this._boundScrollHandler=this._boundScrollHandler||this._scrollHandler.bind(this);this._oldScrollTarget=scrollTarget;this._toggleScrollListener(this._shouldHaveListener,scrollTarget)}},_scrollHandler:function scrollHandler(){},get _defaultScrollTarget(){return this._doc},get _doc(){return this.ownerDocument.documentElement},get _scrollTop(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.pageYOffset:this.scrollTarget.scrollTop}return 0},get _scrollLeft(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.pageXOffset:this.scrollTarget.scrollLeft}return 0},set _scrollTop(top){if(this.scrollTarget===this._doc){window.scrollTo(window.pageXOffset,top)}else if(this._isValidScrollTarget()){this.scrollTarget.scrollTop=top}},set _scrollLeft(left){if(this.scrollTarget===this._doc){window.scrollTo(left,window.pageYOffset)}else if(this._isValidScrollTarget()){this.scrollTarget.scrollLeft=left}},scroll:function(left,top){if(this.scrollTarget===this._doc){window.scrollTo(left,top)}else if(this._isValidScrollTarget()){this.scrollTarget.scrollLeft=left;this.scrollTarget.scrollTop=top}},get _scrollTargetWidth(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.innerWidth:this.scrollTarget.offsetWidth}return 0},get _scrollTargetHeight(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.innerHeight:this.scrollTarget.offsetHeight}return 0},_isValidScrollTarget:function(){return this.scrollTarget instanceof HTMLElement},_toggleScrollListener:function(yes,scrollTarget){if(!this._boundScrollHandler){return}var eventTarget=scrollTarget===this._doc?window:scrollTarget;if(yes){eventTarget.addEventListener("scroll",this._boundScrollHandler)}else{eventTarget.removeEventListener("scroll",this._boundScrollHandler)}},toggleScrollListener:function(yes){this._shouldHaveListener=yes;this._toggleScrollListener(yes,this.scrollTarget)}};(function(){var IOS=navigator.userAgent.match(/iP(?:hone|ad;(?: U;)? CPU) OS (\d+)/);var IOS_TOUCH_SCROLLING=IOS&&IOS[1]>=8;var DEFAULT_PHYSICAL_COUNT=3;var HIDDEN_Y="-10000px";var ITEM_WIDTH=0;var ITEM_HEIGHT=1;var SECRET_TABINDEX=-100;Polymer({is:"iron-list",properties:{items:{type:Array},maxPhysicalCount:{type:Number,value:500},as:{type:String,value:"item"},indexAs:{type:String,value:"index"},selectedAs:{type:String,value:"selected"},grid:{type:Boolean,value:false,reflectToAttribute:true},selectionEnabled:{type:Boolean,value:false},selectedItem:{type:Object,notify:true},selectedItems:{type:Object,notify:true},multiSelection:{type:Boolean,value:false}},observers:["_itemsChanged(items.*)","_selectionEnabledChanged(selectionEnabled)","_multiSelectionChanged(multiSelection)","_setOverflow(scrollTarget)"],behaviors:[Polymer.Templatizer,Polymer.IronResizableBehavior,Polymer.IronA11yKeysBehavior,Polymer.IronScrollTargetBehavior],keyBindings:{up:"_didMoveUp",down:"_didMoveDown",enter:"_didEnter"},_ratio:.5,_scrollerPaddingTop:0,_scrollPosition:0,_physicalSize:0,_physicalAverage:0,_physicalAverageCount:0,_physicalTop:0,_virtualCount:0,_physicalIndexForKey:null,_estScrollHeight:0,_scrollHeight:0,_viewportHeight:0,_viewportWidth:0,_physicalItems:null,_physicalSizes:null,_firstVisibleIndexVal:null,_lastVisibleIndexVal:null,_collection:null,_maxPages:2,_focusedItem:null,_focusedIndex:-1,_offscreenFocusedItem:null,_focusBackfillItem:null,_itemsPerRow:1,_itemWidth:0,_rowHeight:0,_templateCost:0,get _physicalBottom(){return this._physicalTop+this._physicalSize},get _scrollBottom(){return this._scrollPosition+this._viewportHeight},get _virtualEnd(){return this._virtualStart+this._physicalCount-1},get _hiddenContentSize(){var size=this.grid?this._physicalRows*this._rowHeight:this._physicalSize;return size-this._viewportHeight},get _maxScrollTop(){return this._estScrollHeight-this._viewportHeight+this._scrollerPaddingTop},_minVirtualStart:0,get _maxVirtualStart(){return Math.max(0,this._virtualCount-this._physicalCount)},_virtualStartVal:0,set _virtualStart(val){this._virtualStartVal=Math.min(this._maxVirtualStart,Math.max(this._minVirtualStart,val))},get _virtualStart(){return this._virtualStartVal||0},_physicalStartVal:0,set _physicalStart(val){this._physicalStartVal=val%this._physicalCount;if(this._physicalStartVal<0){this._physicalStartVal=this._physicalCount+this._physicalStartVal}this._physicalEnd=(this._physicalStart+this._physicalCount-1)%this._physicalCount},get _physicalStart(){return this._physicalStartVal||0},_physicalCountVal:0,set _physicalCount(val){this._physicalCountVal=val;this._physicalEnd=(this._physicalStart+this._physicalCount-1)%this._physicalCount},get _physicalCount(){return this._physicalCountVal},_physicalEnd:0,get _optPhysicalSize(){if(this.grid){return this._estRowsInView*this._rowHeight*this._maxPages}return this._viewportHeight*this._maxPages},get _isVisible(){return Boolean(this.offsetWidth||this.offsetHeight)},get firstVisibleIndex(){if(this._firstVisibleIndexVal===null){var physicalOffset=Math.floor(this._physicalTop+this._scrollerPaddingTop);this._firstVisibleIndexVal=this._iterateItems(function(pidx,vidx){physicalOffset+=this._getPhysicalSizeIncrement(pidx);if(physicalOffset>this._scrollPosition){return this.grid?vidx-vidx%this._itemsPerRow:vidx}if(this.grid&&this._virtualCount-1===vidx){return vidx-vidx%this._itemsPerRow}})||0}return this._firstVisibleIndexVal},get lastVisibleIndex(){if(this._lastVisibleIndexVal===null){if(this.grid){var lastIndex=this.firstVisibleIndex+this._estRowsInView*this._itemsPerRow-1;this._lastVisibleIndexVal=Math.min(this._virtualCount,lastIndex)}else{var physicalOffset=this._physicalTop;this._iterateItems(function(pidx,vidx){if(physicalOffset<this._scrollBottom){this._lastVisibleIndexVal=vidx}else{return true}physicalOffset+=this._getPhysicalSizeIncrement(pidx)})}}return this._lastVisibleIndexVal},get _defaultScrollTarget(){return this},get _virtualRowCount(){return Math.ceil(this._virtualCount/this._itemsPerRow)},get _estRowsInView(){return Math.ceil(this._viewportHeight/this._rowHeight)},get _physicalRows(){return Math.ceil(this._physicalCount/this._itemsPerRow)},ready:function(){this.addEventListener("focus",this._didFocus.bind(this),true)},attached:function(){if(this._physicalCount===0){this._debounceTemplate(this._render)}this.listen(this,"iron-resize","_resizeHandler")},detached:function(){this.unlisten(this,"iron-resize","_resizeHandler")},_setOverflow:function(scrollTarget){this.style.webkitOverflowScrolling=scrollTarget===this?"touch":"";this.style.overflow=scrollTarget===this?"auto":""},updateViewportBoundaries:function(){this._scrollerPaddingTop=this.scrollTarget===this?0:parseInt(window.getComputedStyle(this)["padding-top"],10);this._viewportWidth=this.$.items.offsetWidth;this._viewportHeight=this._scrollTargetHeight;this.grid&&this._updateGridMetrics()},_scrollHandler:function(){var scrollTop=Math.max(0,Math.min(this._maxScrollTop,this._scrollTop));var delta=scrollTop-this._scrollPosition;var isScrollingDown=delta>=0;this._scrollPosition=scrollTop;this._firstVisibleIndexVal=null;this._lastVisibleIndexVal=null;if(Math.abs(delta)>this._physicalSize){var idxAdjustment=Math.round(delta/this._physicalAverage)*this._itemsPerRow;this._physicalTop=this._physicalTop+delta;this._virtualStart=this._virtualStart+idxAdjustment;this._physicalStart=this._physicalStart+idxAdjustment;this._update()}else{var reusables=this._getReusables(isScrollingDown);if(isScrollingDown){this._physicalTop=reusables.physicalTop;this._virtualStart=this._virtualStart+reusables.indexes.length;this._physicalStart=this._physicalStart+reusables.indexes.length}else{this._virtualStart=this._virtualStart-reusables.indexes.length;this._physicalStart=this._physicalStart-reusables.indexes.length}if(reusables.indexes.length===0){this._increasePoolIfNeeded()}else{this._update(reusables.indexes,isScrollingDown?null:reusables.indexes)}}},_getReusables:function(fromTop){var ith,lastIth,offsetContent,physicalItemHeight;var idxs=[];var protectedOffsetContent=this._hiddenContentSize*this._ratio;var virtualStart=this._virtualStart;var virtualEnd=this._virtualEnd;var physicalCount=this._physicalCount;var physicalTop=this._physicalTop;var scrollTop=this._scrollTop;var scrollBottom=this._scrollBottom;if(fromTop){ith=this._physicalStart;lastIth=this._physicalEnd;offsetContent=scrollTop-physicalTop}else{ith=this._physicalEnd;lastIth=this._physicalStart;offsetContent=this._physicalBottom-scrollBottom}while(true){physicalItemHeight=this._getPhysicalSizeIncrement(ith);offsetContent=offsetContent-physicalItemHeight;if(idxs.length>=physicalCount||offsetContent<=protectedOffsetContent){break}if(fromTop){if(virtualEnd+idxs.length+1>=this._virtualCount){break}if(physicalTop+physicalItemHeight>=scrollTop){break}idxs.push(ith);physicalTop=physicalTop+physicalItemHeight;ith=(ith+1)%physicalCount}else{if(virtualStart-idxs.length<=0){break}if(physicalTop+this._physicalSize-physicalItemHeight<=scrollBottom){break}idxs.push(ith);physicalTop=physicalTop-physicalItemHeight;ith=ith===0?physicalCount-1:ith-1}}return{indexes:idxs,physicalTop:physicalTop}},_update:function(itemSet,movingUp){if(itemSet&&itemSet.length===0){return}this._manageFocus();this._assignModels(itemSet);this._updateMetrics(itemSet);if(movingUp){while(movingUp.length){var idx=movingUp.pop();this._physicalTop-=this._getPhysicalSizeIncrement(idx)}}this._positionItems();this._updateScrollerSize();this._increasePoolIfNeeded()},_createPool:function(size){var physicalItems=new Array(size);this._ensureTemplatized();for(var i=0;i<size;i++){var inst=this.stamp(null);physicalItems[i]=inst.root.querySelector("*");Polymer.dom(this).appendChild(inst.root)}return physicalItems},_increasePoolIfNeeded:function(){if(this._viewportHeight===0){return false}var self=this;var isClientFull=this._physicalBottom>=this._scrollBottom&&this._physicalTop<=this._scrollPosition;if(this._physicalSize>=this._optPhysicalSize&&isClientFull){return false}var maxPoolSize=Math.round(this._physicalCount*.5);if(!isClientFull){this._debounceTemplate(this._increasePool.bind(this,maxPoolSize));return true}this._yield(function(){self._increasePool(Math.min(maxPoolSize,Math.max(1,Math.round(50/self._templateCost))))});return true},_yield:function(cb){var g=window;var handle=g.requestIdleCallback?g.requestIdleCallback(cb):g.setTimeout(cb,16);Polymer.dom.addDebouncer({complete:function(){g.cancelIdleCallback?g.cancelIdleCallback(handle):g.clearTimeout(handle);cb()}})},_increasePool:function(missingItems){var nextPhysicalCount=Math.min(this._physicalCount+missingItems,this._virtualCount-this._virtualStart,Math.max(this.maxPhysicalCount,DEFAULT_PHYSICAL_COUNT));var prevPhysicalCount=this._physicalCount;var delta=nextPhysicalCount-prevPhysicalCount;var ts=window.performance.now();if(delta<=0){return}[].push.apply(this._physicalItems,this._createPool(delta));[].push.apply(this._physicalSizes,new Array(delta));this._physicalCount=prevPhysicalCount+delta;if(this._physicalStart>this._physicalEnd&&this._isIndexRendered(this._focusedIndex)&&this._getPhysicalIndex(this._focusedIndex)<this._physicalEnd){this._physicalStart=this._physicalStart+delta}this._update();this._templateCost=(window.performance.now()-ts)/delta},_render:function(){if(this.isAttached&&this._isVisible){if(this._physicalCount===0){this.updateViewportBoundaries();this._increasePool(DEFAULT_PHYSICAL_COUNT)}else{var reusables=this._getReusables(true);this._physicalTop=reusables.physicalTop;this._virtualStart=this._virtualStart+reusables.indexes.length;this._physicalStart=this._physicalStart+reusables.indexes.length;this._update(reusables.indexes);this._update()}}},_ensureTemplatized:function(){if(!this.ctor){var props={};props.__key__=true;props[this.as]=true;props[this.indexAs]=true;props[this.selectedAs]=true;props.tabIndex=true;this._instanceProps=props;this._userTemplate=Polymer.dom(this).querySelector("template");if(this._userTemplate){this.templatize(this._userTemplate)}else{console.warn("iron-list requires a template to be provided in light-dom")}}},_getStampedChildren:function(){return this._physicalItems},_forwardInstancePath:function(inst,path,value){if(path.indexOf(this.as+".")===0){this.notifyPath("items."+inst.__key__+"."+path.slice(this.as.length+1),value)}},_forwardParentProp:function(prop,value){if(this._physicalItems){this._physicalItems.forEach(function(item){item._templateInstance[prop]=value},this)}},_forwardParentPath:function(path,value){if(this._physicalItems){this._physicalItems.forEach(function(item){item._templateInstance.notifyPath(path,value,true)},this)}},_forwardItemPath:function(path,value){if(!this._physicalIndexForKey){return}var dot=path.indexOf(".");var key=path.substring(0,dot<0?path.length:dot);var idx=this._physicalIndexForKey[key];var offscreenItem=this._offscreenFocusedItem;var el=offscreenItem&&offscreenItem._templateInstance.__key__===key?offscreenItem:this._physicalItems[idx];if(!el||el._templateInstance.__key__!==key){return}if(dot>=0){path=this.as+"."+path.substring(dot+1);el._templateInstance.notifyPath(path,value,true)}else{var currentItem=el._templateInstance[this.as];if(Array.isArray(this.selectedItems)){for(var i=0;i<this.selectedItems.length;i++){if(this.selectedItems[i]===currentItem){this.set("selectedItems."+i,value);break}}}else if(this.selectedItem===currentItem){this.set("selectedItem",value)}el._templateInstance[this.as]=value}},_itemsChanged:function(change){if(change.path==="items"){this._virtualStart=0;this._physicalTop=0;this._virtualCount=this.items?this.items.length:0;this._collection=this.items?Polymer.Collection.get(this.items):null;this._physicalIndexForKey={};this._firstVisibleIndexVal=null;this._lastVisibleIndexVal=null;this._physicalCount=this._physicalCount||0;this._physicalItems=this._physicalItems||[];this._physicalSizes=this._physicalSizes||[];this._physicalStart=0;this._resetScrollPosition(0);this._removeFocusedItem();this._debounceTemplate(this._render)}else if(change.path==="items.splices"){this._adjustVirtualIndex(change.value.indexSplices);this._virtualCount=this.items?this.items.length:0;this._debounceTemplate(this._render)}else{this._forwardItemPath(change.path.split(".").slice(1).join("."),change.value)}},_adjustVirtualIndex:function(splices){splices.forEach(function(splice){splice.removed.forEach(this._removeItem,this);if(splice.index<this._virtualStart){var delta=Math.max(splice.addedCount-splice.removed.length,splice.index-this._virtualStart);this._virtualStart=this._virtualStart+delta;if(this._focusedIndex>=0){this._focusedIndex=this._focusedIndex+delta}}},this)},_removeItem:function(item){this.$.selector.deselect(item);if(this._focusedItem&&this._focusedItem._templateInstance[this.as]===item){this._removeFocusedItem()}},_iterateItems:function(fn,itemSet){var pidx,vidx,rtn,i;if(arguments.length===2&&itemSet){for(i=0;i<itemSet.length;i++){pidx=itemSet[i];vidx=this._computeVidx(pidx);if((rtn=fn.call(this,pidx,vidx))!=null){return rtn}}}else{pidx=this._physicalStart;vidx=this._virtualStart;for(;pidx<this._physicalCount;pidx++,vidx++){if((rtn=fn.call(this,pidx,vidx))!=null){return rtn}}for(pidx=0;pidx<this._physicalStart;pidx++,vidx++){if((rtn=fn.call(this,pidx,vidx))!=null){return rtn}}}},_computeVidx:function(pidx){if(pidx>=this._physicalStart){return this._virtualStart+(pidx-this._physicalStart)}return this._virtualStart+(this._physicalCount-this._physicalStart)+pidx},_assignModels:function(itemSet){this._iterateItems(function(pidx,vidx){var el=this._physicalItems[pidx];var inst=el._templateInstance;var item=this.items&&this.items[vidx];if(item!=null){inst[this.as]=item;inst.__key__=this._collection.getKey(item);inst[this.selectedAs]=this.$.selector.isSelected(item);inst[this.indexAs]=vidx;inst.tabIndex=this._focusedIndex===vidx?0:-1;this._physicalIndexForKey[inst.__key__]=pidx;el.removeAttribute("hidden")}else{inst.__key__=null;el.setAttribute("hidden","")}},itemSet)},_updateMetrics:function(itemSet){Polymer.dom.flush();var newPhysicalSize=0;var oldPhysicalSize=0;var prevAvgCount=this._physicalAverageCount;var prevPhysicalAvg=this._physicalAverage;this._iterateItems(function(pidx,vidx){oldPhysicalSize+=this._physicalSizes[pidx]||0;this._physicalSizes[pidx]=this._physicalItems[pidx].offsetHeight;newPhysicalSize+=this._physicalSizes[pidx];this._physicalAverageCount+=this._physicalSizes[pidx]?1:0},itemSet);if(this.grid){this._updateGridMetrics();this._physicalSize=Math.ceil(this._physicalCount/this._itemsPerRow)*this._rowHeight}else{this._physicalSize=this._physicalSize+newPhysicalSize-oldPhysicalSize}if(this._physicalAverageCount!==prevAvgCount){this._physicalAverage=Math.round((prevPhysicalAvg*prevAvgCount+newPhysicalSize)/this._physicalAverageCount)}},_updateGridMetrics:function(){this._itemWidth=this._physicalCount>0?this._physicalItems[0].getBoundingClientRect().width:200;this._rowHeight=this._physicalCount>0?this._physicalItems[0].offsetHeight:200;this._itemsPerRow=this._itemWidth?Math.floor(this._viewportWidth/this._itemWidth):this._itemsPerRow},_positionItems:function(){this._adjustScrollPosition();var y=this._physicalTop;if(this.grid){var totalItemWidth=this._itemsPerRow*this._itemWidth;var rowOffset=(this._viewportWidth-totalItemWidth)/2;this._iterateItems(function(pidx,vidx){var modulus=vidx%this._itemsPerRow;var x=Math.floor(modulus*this._itemWidth+rowOffset);this.translate3d(x+"px",y+"px",0,this._physicalItems[pidx]);if(this._shouldRenderNextRow(vidx)){y+=this._rowHeight}})}else{this._iterateItems(function(pidx,vidx){this.translate3d(0,y+"px",0,this._physicalItems[pidx]);y+=this._physicalSizes[pidx]})}},_getPhysicalSizeIncrement:function(pidx){if(!this.grid){return this._physicalSizes[pidx]}if(this._computeVidx(pidx)%this._itemsPerRow!==this._itemsPerRow-1){return 0}return this._rowHeight},_shouldRenderNextRow:function(vidx){return vidx%this._itemsPerRow===this._itemsPerRow-1},_adjustScrollPosition:function(){var deltaHeight=this._virtualStart===0?this._physicalTop:Math.min(this._scrollPosition+this._physicalTop,0);if(deltaHeight){this._physicalTop=this._physicalTop-deltaHeight;if(!IOS_TOUCH_SCROLLING&&this._physicalTop!==0){this._resetScrollPosition(this._scrollTop-deltaHeight)}}},_resetScrollPosition:function(pos){if(this.scrollTarget){this._scrollTop=pos;this._scrollPosition=this._scrollTop}},_updateScrollerSize:function(forceUpdate){if(this.grid){this._estScrollHeight=this._virtualRowCount*this._rowHeight}else{this._estScrollHeight=this._physicalBottom+Math.max(this._virtualCount-this._physicalCount-this._virtualStart,0)*this._physicalAverage}forceUpdate=forceUpdate||this._scrollHeight===0;forceUpdate=forceUpdate||this._scrollPosition>=this._estScrollHeight-this._physicalSize;forceUpdate=forceUpdate||this.grid&&this.$.items.style.height<this._estScrollHeight;if(forceUpdate||Math.abs(this._estScrollHeight-this._scrollHeight)>=this._optPhysicalSize){this.$.items.style.height=this._estScrollHeight+"px";this._scrollHeight=this._estScrollHeight}},scrollToItem:function(item){return this.scrollToIndex(this.items.indexOf(item))},scrollToIndex:function(idx){if(typeof idx!=="number"||idx<0||idx>this.items.length-1){return}Polymer.dom.flush();if(this._physicalCount===0){return}idx=Math.min(Math.max(idx,0),this._virtualCount-1);if(!this._isIndexRendered(idx)||idx>=this._maxVirtualStart){this._virtualStart=this.grid?idx-this._itemsPerRow*2:idx-1}this._manageFocus();this._assignModels();this._updateMetrics();this._physicalTop=Math.floor(this._virtualStart/this._itemsPerRow)*this._physicalAverage;var currentTopItem=this._physicalStart;var currentVirtualItem=this._virtualStart;var targetOffsetTop=0;var hiddenContentSize=this._hiddenContentSize;while(currentVirtualItem<idx&&targetOffsetTop<=hiddenContentSize){targetOffsetTop=targetOffsetTop+this._getPhysicalSizeIncrement(currentTopItem);currentTopItem=(currentTopItem+1)%this._physicalCount;currentVirtualItem++}this._updateScrollerSize(true);this._positionItems();this._resetScrollPosition(this._physicalTop+this._scrollerPaddingTop+targetOffsetTop);this._increasePoolIfNeeded();this._firstVisibleIndexVal=null;this._lastVisibleIndexVal=null},_resetAverage:function(){this._physicalAverage=0;this._physicalAverageCount=0},_resizeHandler:function(){if(IOS&&Math.abs(this._viewportHeight-this._scrollTargetHeight)<100){return}Polymer.dom.addDebouncer(this.debounce("_debounceTemplate",function(){this.updateViewportBoundaries();this._render();if(this._isVisible){this.toggleScrollListener(true);if(this._physicalCount>0){this._resetAverage();this.scrollToIndex(this.firstVisibleIndex)}}else{this.toggleScrollListener(false)}}.bind(this),1))},_getModelFromItem:function(item){var key=this._collection.getKey(item);var pidx=this._physicalIndexForKey[key];if(pidx!=null){return this._physicalItems[pidx]._templateInstance}return null},_getNormalizedItem:function(item){if(this._collection.getKey(item)===undefined){if(typeof item==="number"){item=this.items[item];if(!item){throw new RangeError("<item> not found")}return item}throw new TypeError("<item> should be a valid item")}return item},selectItem:function(item){item=this._getNormalizedItem(item);var model=this._getModelFromItem(item);if(!this.multiSelection&&this.selectedItem){this.deselectItem(this.selectedItem)}if(model){model[this.selectedAs]=true}this.$.selector.select(item);this.updateSizeForItem(item)},deselectItem:function(item){item=this._getNormalizedItem(item);var model=this._getModelFromItem(item);if(model){model[this.selectedAs]=false}this.$.selector.deselect(item);this.updateSizeForItem(item)},toggleSelectionForItem:function(item){item=this._getNormalizedItem(item);if(this.$.selector.isSelected(item)){this.deselectItem(item)}else{this.selectItem(item)}},clearSelection:function(){function unselect(item){var model=this._getModelFromItem(item);if(model){model[this.selectedAs]=false}}if(Array.isArray(this.selectedItems)){this.selectedItems.forEach(unselect,this)}else if(this.selectedItem){unselect.call(this,this.selectedItem)}this.$.selector.clearSelection()},_selectionEnabledChanged:function(selectionEnabled){var handler=selectionEnabled?this.listen:this.unlisten;handler.call(this,this,"tap","_selectionHandler")},_selectionHandler:function(e){var model=this.modelForElement(e.target);if(!model){return}var modelTabIndex,activeElTabIndex;var target=Polymer.dom(e).path[0];var activeEl=Polymer.dom(this.domHost?this.domHost.root:document).activeElement;var physicalItem=this._physicalItems[this._getPhysicalIndex(model[this.indexAs])];if(target.localName==="input"||target.localName==="button"||target.localName==="select"){return}modelTabIndex=model.tabIndex;model.tabIndex=SECRET_TABINDEX;
-
-activeElTabIndex=activeEl?activeEl.tabIndex:-1;model.tabIndex=modelTabIndex;if(activeEl&&physicalItem!==activeEl&&physicalItem.contains(activeEl)&&activeElTabIndex!==SECRET_TABINDEX){return}this.toggleSelectionForItem(model[this.as])},_multiSelectionChanged:function(multiSelection){this.clearSelection();this.$.selector.multi=multiSelection},updateSizeForItem:function(item){item=this._getNormalizedItem(item);var key=this._collection.getKey(item);var pidx=this._physicalIndexForKey[key];if(pidx!=null){this._updateMetrics([pidx]);this._positionItems()}},_manageFocus:function(){var fidx=this._focusedIndex;if(fidx>=0&&fidx<this._virtualCount){if(this._isIndexRendered(fidx)){this._restoreFocusedItem()}else{this._createFocusBackfillItem()}}else if(this._virtualCount>0&&this._physicalCount>0){this._focusedIndex=this._virtualStart;this._focusedItem=this._physicalItems[this._physicalStart]}},_isIndexRendered:function(idx){return idx>=this._virtualStart&&idx<=this._virtualEnd},_isIndexVisible:function(idx){return idx>=this.firstVisibleIndex&&idx<=this.lastVisibleIndex},_getPhysicalIndex:function(idx){return this._physicalIndexForKey[this._collection.getKey(this._getNormalizedItem(idx))]},_focusPhysicalItem:function(idx){if(idx<0||idx>=this._virtualCount){return}this._restoreFocusedItem();if(!this._isIndexRendered(idx)){this.scrollToIndex(idx)}var physicalItem=this._physicalItems[this._getPhysicalIndex(idx)];var model=physicalItem._templateInstance;var focusable;model.tabIndex=SECRET_TABINDEX;if(physicalItem.tabIndex===SECRET_TABINDEX){focusable=physicalItem}if(!focusable){focusable=Polymer.dom(physicalItem).querySelector('[tabindex="'+SECRET_TABINDEX+'"]')}model.tabIndex=0;this._focusedIndex=idx;focusable&&focusable.focus()},_removeFocusedItem:function(){if(this._offscreenFocusedItem){Polymer.dom(this).removeChild(this._offscreenFocusedItem)}this._offscreenFocusedItem=null;this._focusBackfillItem=null;this._focusedItem=null;this._focusedIndex=-1},_createFocusBackfillItem:function(){var pidx,fidx=this._focusedIndex;if(this._offscreenFocusedItem||fidx<0){return}if(!this._focusBackfillItem){var stampedTemplate=this.stamp(null);this._focusBackfillItem=stampedTemplate.root.querySelector("*");Polymer.dom(this).appendChild(stampedTemplate.root)}pidx=this._getPhysicalIndex(fidx);if(pidx!=null){this._offscreenFocusedItem=this._physicalItems[pidx];this._physicalItems[pidx]=this._focusBackfillItem;this.translate3d(0,HIDDEN_Y,0,this._offscreenFocusedItem)}},_restoreFocusedItem:function(){var pidx,fidx=this._focusedIndex;if(!this._offscreenFocusedItem||this._focusedIndex<0){return}this._assignModels();pidx=this._getPhysicalIndex(fidx);if(pidx!=null){this._focusBackfillItem=this._physicalItems[pidx];this._physicalItems[pidx]=this._offscreenFocusedItem;this._offscreenFocusedItem=null;this.translate3d(0,HIDDEN_Y,0,this._focusBackfillItem)}},_didFocus:function(e){var targetModel=this.modelForElement(e.target);var focusedModel=this._focusedItem?this._focusedItem._templateInstance:null;var hasOffscreenFocusedItem=this._offscreenFocusedItem!==null;var fidx=this._focusedIndex;if(!targetModel||!focusedModel){return}if(focusedModel===targetModel){if(!this._isIndexVisible(fidx)){this.scrollToIndex(fidx)}}else{this._restoreFocusedItem();focusedModel.tabIndex=-1;targetModel.tabIndex=0;fidx=targetModel[this.indexAs];this._focusedIndex=fidx;this._focusedItem=this._physicalItems[this._getPhysicalIndex(fidx)];if(hasOffscreenFocusedItem&&!this._offscreenFocusedItem){this._update()}}},_didMoveUp:function(){this._focusPhysicalItem(this._focusedIndex-1)},_didMoveDown:function(e){e.detail.keyboardEvent.preventDefault();this._focusPhysicalItem(this._focusedIndex+1)},_didEnter:function(e){this._focusPhysicalItem(this._focusedIndex);this._selectionHandler(e.detail.keyboardEvent)}})})();
+Polymer.IronResizableBehavior={properties:{_parentResizable:{type:Object,observer:"_parentResizableChanged"},_notifyingDescendant:{type:Boolean,value:false}},listeners:{"iron-request-resize-notifications":"_onIronRequestResizeNotifications"},created:function(){this._interestedResizables=[];this._boundNotifyResize=this.notifyResize.bind(this)},attached:function(){this.fire("iron-request-resize-notifications",null,{node:this,bubbles:true,cancelable:true});if(!this._parentResizable){window.addEventListener("resize",this._boundNotifyResize);this.notifyResize()}},detached:function(){if(this._parentResizable){this._parentResizable.stopResizeNotificationsFor(this)}else{window.removeEventListener("resize",this._boundNotifyResize)}this._parentResizable=null},notifyResize:function(){if(!this.isAttached){return}this._interestedResizables.forEach(function(resizable){if(this.resizerShouldNotify(resizable)){this._notifyDescendant(resizable)}},this);this._fireResize()},assignParentResizable:function(parentResizable){this._parentResizable=parentResizable},stopResizeNotificationsFor:function(target){var index=this._interestedResizables.indexOf(target);if(index>-1){this._interestedResizables.splice(index,1);this.unlisten(target,"iron-resize","_onDescendantIronResize")}},resizerShouldNotify:function(element){return true},_onDescendantIronResize:function(event){if(this._notifyingDescendant){event.stopPropagation();return}if(!Polymer.Settings.useShadow){this._fireResize()}},_fireResize:function(){this.fire("iron-resize",null,{node:this,bubbles:false})},_onIronRequestResizeNotifications:function(event){var target=event.path?event.path[0]:event.target;if(target===this){return}if(this._interestedResizables.indexOf(target)===-1){this._interestedResizables.push(target);this.listen(target,"iron-resize","_onDescendantIronResize")}target.assignParentResizable(this);this._notifyDescendant(target);event.stopPropagation()},_parentResizableChanged:function(parentResizable){if(parentResizable){window.removeEventListener("resize",this._boundNotifyResize)}},_notifyDescendant:function(descendant){if(!this.isAttached){return}this._notifyingDescendant=true;descendant.notifyResize();this._notifyingDescendant=false}};(function(){"use strict";var KEY_IDENTIFIER={"U+0008":"backspace","U+0009":"tab","U+001B":"esc","U+0020":"space","U+007F":"del"};var KEY_CODE={8:"backspace",9:"tab",13:"enter",27:"esc",33:"pageup",34:"pagedown",35:"end",36:"home",32:"space",37:"left",38:"up",39:"right",40:"down",46:"del",106:"*"};var MODIFIER_KEYS={shift:"shiftKey",ctrl:"ctrlKey",alt:"altKey",meta:"metaKey"};var KEY_CHAR=/[a-z0-9*]/;var IDENT_CHAR=/U\+/;var ARROW_KEY=/^arrow/;var SPACE_KEY=/^space(bar)?/;var ESC_KEY=/^escape$/;function transformKey(key,noSpecialChars){var validKey="";if(key){var lKey=key.toLowerCase();if(lKey===" "||SPACE_KEY.test(lKey)){validKey="space"}else if(ESC_KEY.test(lKey)){validKey="esc"}else if(lKey.length==1){if(!noSpecialChars||KEY_CHAR.test(lKey)){validKey=lKey}}else if(ARROW_KEY.test(lKey)){validKey=lKey.replace("arrow","")}else if(lKey=="multiply"){validKey="*"}else{validKey=lKey}}return validKey}function transformKeyIdentifier(keyIdent){var validKey="";if(keyIdent){if(keyIdent in KEY_IDENTIFIER){validKey=KEY_IDENTIFIER[keyIdent]}else if(IDENT_CHAR.test(keyIdent)){keyIdent=parseInt(keyIdent.replace("U+","0x"),16);validKey=String.fromCharCode(keyIdent).toLowerCase()}else{validKey=keyIdent.toLowerCase()}}return validKey}function transformKeyCode(keyCode){var validKey="";if(Number(keyCode)){if(keyCode>=65&&keyCode<=90){validKey=String.fromCharCode(32+keyCode)}else if(keyCode>=112&&keyCode<=123){validKey="f"+(keyCode-112)}else if(keyCode>=48&&keyCode<=57){validKey=String(keyCode-48)}else if(keyCode>=96&&keyCode<=105){validKey=String(keyCode-96)}else{validKey=KEY_CODE[keyCode]}}return validKey}function normalizedKeyForEvent(keyEvent,noSpecialChars){if(keyEvent.key){return transformKey(keyEvent.key,noSpecialChars)}if(keyEvent.detail&&keyEvent.detail.key){return transformKey(keyEvent.detail.key,noSpecialChars)}return transformKeyIdentifier(keyEvent.keyIdentifier)||transformKeyCode(keyEvent.keyCode)||""}function keyComboMatchesEvent(keyCombo,event){var keyEvent=normalizedKeyForEvent(event,keyCombo.hasModifiers);return keyEvent===keyCombo.key&&(!keyCombo.hasModifiers||!!event.shiftKey===!!keyCombo.shiftKey&&!!event.ctrlKey===!!keyCombo.ctrlKey&&!!event.altKey===!!keyCombo.altKey&&!!event.metaKey===!!keyCombo.metaKey)}function parseKeyComboString(keyComboString){if(keyComboString.length===1){return{combo:keyComboString,key:keyComboString,event:"keydown"}}return keyComboString.split("+").reduce(function(parsedKeyCombo,keyComboPart){var eventParts=keyComboPart.split(":");var keyName=eventParts[0];var event=eventParts[1];if(keyName in MODIFIER_KEYS){parsedKeyCombo[MODIFIER_KEYS[keyName]]=true;parsedKeyCombo.hasModifiers=true}else{parsedKeyCombo.key=keyName;parsedKeyCombo.event=event||"keydown"}return parsedKeyCombo},{combo:keyComboString.split(":").shift()})}function parseEventString(eventString){return eventString.trim().split(" ").map(function(keyComboString){return parseKeyComboString(keyComboString)})}Polymer.IronA11yKeysBehavior={properties:{keyEventTarget:{type:Object,value:function(){return this}},stopKeyboardEventPropagation:{type:Boolean,value:false},_boundKeyHandlers:{type:Array,value:function(){return[]}},_imperativeKeyBindings:{type:Object,value:function(){return{}}}},observers:["_resetKeyEventListeners(keyEventTarget, _boundKeyHandlers)"],keyBindings:{},registered:function(){this._prepKeyBindings()},attached:function(){this._listenKeyEventListeners()},detached:function(){this._unlistenKeyEventListeners()},addOwnKeyBinding:function(eventString,handlerName){this._imperativeKeyBindings[eventString]=handlerName;this._prepKeyBindings();this._resetKeyEventListeners()},removeOwnKeyBindings:function(){this._imperativeKeyBindings={};this._prepKeyBindings();this._resetKeyEventListeners()},keyboardEventMatchesKeys:function(event,eventString){var keyCombos=parseEventString(eventString);for(var i=0;i<keyCombos.length;++i){if(keyComboMatchesEvent(keyCombos[i],event)){return true}}return false},_collectKeyBindings:function(){var keyBindings=this.behaviors.map(function(behavior){return behavior.keyBindings});if(keyBindings.indexOf(this.keyBindings)===-1){keyBindings.push(this.keyBindings)}return keyBindings},_prepKeyBindings:function(){this._keyBindings={};this._collectKeyBindings().forEach(function(keyBindings){for(var eventString in keyBindings){this._addKeyBinding(eventString,keyBindings[eventString])}},this);for(var eventString in this._imperativeKeyBindings){this._addKeyBinding(eventString,this._imperativeKeyBindings[eventString])}for(var eventName in this._keyBindings){this._keyBindings[eventName].sort(function(kb1,kb2){var b1=kb1[0].hasModifiers;var b2=kb2[0].hasModifiers;return b1===b2?0:b1?-1:1})}},_addKeyBinding:function(eventString,handlerName){parseEventString(eventString).forEach(function(keyCombo){this._keyBindings[keyCombo.event]=this._keyBindings[keyCombo.event]||[];this._keyBindings[keyCombo.event].push([keyCombo,handlerName])},this)},_resetKeyEventListeners:function(){this._unlistenKeyEventListeners();if(this.isAttached){this._listenKeyEventListeners()}},_listenKeyEventListeners:function(){if(!this.keyEventTarget){return}Object.keys(this._keyBindings).forEach(function(eventName){var keyBindings=this._keyBindings[eventName];var boundKeyHandler=this._onKeyBindingEvent.bind(this,keyBindings);this._boundKeyHandlers.push([this.keyEventTarget,eventName,boundKeyHandler]);this.keyEventTarget.addEventListener(eventName,boundKeyHandler)},this)},_unlistenKeyEventListeners:function(){var keyHandlerTuple;var keyEventTarget;var eventName;var boundKeyHandler;while(this._boundKeyHandlers.length){keyHandlerTuple=this._boundKeyHandlers.pop();keyEventTarget=keyHandlerTuple[0];eventName=keyHandlerTuple[1];boundKeyHandler=keyHandlerTuple[2];keyEventTarget.removeEventListener(eventName,boundKeyHandler)}},_onKeyBindingEvent:function(keyBindings,event){if(this.stopKeyboardEventPropagation){event.stopPropagation()}if(event.defaultPrevented){return}for(var i=0;i<keyBindings.length;i++){var keyCombo=keyBindings[i][0];var handlerName=keyBindings[i][1];if(keyComboMatchesEvent(keyCombo,event)){this._triggerKeyHandler(keyCombo,handlerName,event);if(event.defaultPrevented){return}}}},_triggerKeyHandler:function(keyCombo,handlerName,keyboardEvent){var detail=Object.create(keyCombo);detail.keyboardEvent=keyboardEvent;var event=new CustomEvent(keyCombo.event,{detail:detail,cancelable:true});this[handlerName].call(this,event);if(event.defaultPrevented){keyboardEvent.preventDefault()}}}})();Polymer.IronScrollTargetBehavior={properties:{scrollTarget:{type:HTMLElement,value:function(){return this._defaultScrollTarget}}},observers:["_scrollTargetChanged(scrollTarget, isAttached)"],_shouldHaveListener:true,_scrollTargetChanged:function(scrollTarget,isAttached){var eventTarget;if(this._oldScrollTarget){this._toggleScrollListener(false,this._oldScrollTarget);this._oldScrollTarget=null}if(!isAttached){return}if(scrollTarget==="document"){this.scrollTarget=this._doc}else if(typeof scrollTarget==="string"){this.scrollTarget=this.domHost?this.domHost.$[scrollTarget]:Polymer.dom(this.ownerDocument).querySelector("#"+scrollTarget)}else if(this._isValidScrollTarget()){this._boundScrollHandler=this._boundScrollHandler||this._scrollHandler.bind(this);this._oldScrollTarget=scrollTarget;this._toggleScrollListener(this._shouldHaveListener,scrollTarget)}},_scrollHandler:function scrollHandler(){},get _defaultScrollTarget(){return this._doc},get _doc(){return this.ownerDocument.documentElement},get _scrollTop(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.pageYOffset:this.scrollTarget.scrollTop}return 0},get _scrollLeft(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.pageXOffset:this.scrollTarget.scrollLeft}return 0},set _scrollTop(top){if(this.scrollTarget===this._doc){window.scrollTo(window.pageXOffset,top)}else if(this._isValidScrollTarget()){this.scrollTarget.scrollTop=top}},set _scrollLeft(left){if(this.scrollTarget===this._doc){window.scrollTo(left,window.pageYOffset)}else if(this._isValidScrollTarget()){this.scrollTarget.scrollLeft=left}},scroll:function(left,top){if(this.scrollTarget===this._doc){window.scrollTo(left,top)}else if(this._isValidScrollTarget()){this.scrollTarget.scrollLeft=left;this.scrollTarget.scrollTop=top}},get _scrollTargetWidth(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.innerWidth:this.scrollTarget.offsetWidth}return 0},get _scrollTargetHeight(){if(this._isValidScrollTarget()){return this.scrollTarget===this._doc?window.innerHeight:this.scrollTarget.offsetHeight}return 0},_isValidScrollTarget:function(){return this.scrollTarget instanceof HTMLElement},_toggleScrollListener:function(yes,scrollTarget){if(!this._boundScrollHandler){return}var eventTarget=scrollTarget===this._doc?window:scrollTarget;if(yes){eventTarget.addEventListener("scroll",this._boundScrollHandler)}else{eventTarget.removeEventListener("scroll",this._boundScrollHandler)}},toggleScrollListener:function(yes){this._shouldHaveListener=yes;this._toggleScrollListener(yes,this.scrollTarget)}};(function(){var IOS=navigator.userAgent.match(/iP(?:hone|ad;(?: U;)? CPU) OS (\d+)/);var IOS_TOUCH_SCROLLING=IOS&&IOS[1]>=8;var DEFAULT_PHYSICAL_COUNT=3;var HIDDEN_Y="-10000px";var ITEM_WIDTH=0;var ITEM_HEIGHT=1;var SECRET_TABINDEX=-100;Polymer({is:"iron-list",properties:{items:{type:Array},maxPhysicalCount:{type:Number,value:500},as:{type:String,value:"item"},indexAs:{type:String,value:"index"},selectedAs:{type:String,value:"selected"},grid:{type:Boolean,value:false,reflectToAttribute:true},selectionEnabled:{type:Boolean,value:false},selectedItem:{type:Object,notify:true},selectedItems:{type:Object,notify:true},multiSelection:{type:Boolean,value:false}},observers:["_itemsChanged(items.*)","_selectionEnabledChanged(selectionEnabled)","_multiSelectionChanged(multiSelection)","_setOverflow(scrollTarget)"],behaviors:[Polymer.Templatizer,Polymer.IronResizableBehavior,Polymer.IronA11yKeysBehavior,Polymer.IronScrollTargetBehavior],keyBindings:{up:"_didMoveUp",down:"_didMoveDown",enter:"_didEnter"},_ratio:.5,_scrollerPaddingTop:0,_scrollPosition:0,_physicalSize:0,_physicalAverage:0,_physicalAverageCount:0,_physicalTop:0,_virtualCount:0,_physicalIndexForKey:null,_estScrollHeight:0,_scrollHeight:0,_viewportHeight:0,_viewportWidth:0,_physicalItems:null,_physicalSizes:null,_firstVisibleIndexVal:null,_lastVisibleIndexVal:null,_collection:null,_maxPages:2,_focusedItem:null,_focusedIndex:-1,_offscreenFocusedItem:null,_focusBackfillItem:null,_itemsPerRow:1,_itemWidth:0,_rowHeight:0,_templateCost:0,get _physicalBottom(){return this._physicalTop+this._physicalSize},get _scrollBottom(){return this._scrollPosition+this._viewportHeight},get _virtualEnd(){return this._virtualStart+this._physicalCount-1},get _hiddenContentSize(){var size=this.grid?this._physicalRows*this._rowHeight:this._physicalSize;return size-this._viewportHeight},get _maxScrollTop(){return this._estScrollHeight-this._viewportHeight+this._scrollerPaddingTop},_minVirtualStart:0,get _maxVirtualStart(){return Math.max(0,this._virtualCount-this._physicalCount)},_virtualStartVal:0,set _virtualStart(val){this._virtualStartVal=Math.min(this._maxVirtualStart,Math.max(this._minVirtualStart,val))},get _virtualStart(){return this._virtualStartVal||0},_physicalStartVal:0,set _physicalStart(val){this._physicalStartVal=val%this._physicalCount;if(this._physicalStartVal<0){this._physicalStartVal=this._physicalCount+this._physicalStartVal}this._physicalEnd=(this._physicalStart+this._physicalCount-1)%this._physicalCount},get _physicalStart(){return this._physicalStartVal||0},_physicalCountVal:0,set _physicalCount(val){this._physicalCountVal=val;this._physicalEnd=(this._physicalStart+this._physicalCount-1)%this._physicalCount},get _physicalCount(){return this._physicalCountVal},_physicalEnd:0,get _optPhysicalSize(){if(this.grid){return this._estRowsInView*this._rowHeight*this._maxPages}return this._viewportHeight*this._maxPages},get _isVisible(){return Boolean(this.offsetWidth||this.offsetHeight)},get firstVisibleIndex(){if(this._firstVisibleIndexVal===null){var physicalOffset=Math.floor(this._physicalTop+this._scrollerPaddingTop);this._firstVisibleIndexVal=this._iterateItems(function(pidx,vidx){physicalOffset+=this._getPhysicalSizeIncrement(pidx);if(physicalOffset>this._scrollPosition){return this.grid?vidx-vidx%this._itemsPerRow:vidx}if(this.grid&&this._virtualCount-1===vidx){return vidx-vidx%this._itemsPerRow}})||0}return this._firstVisibleIndexVal},get lastVisibleIndex(){if(this._lastVisibleIndexVal===null){if(this.grid){var lastIndex=this.firstVisibleIndex+this._estRowsInView*this._itemsPerRow-1;this._lastVisibleIndexVal=Math.min(this._virtualCount,lastIndex)}else{var physicalOffset=this._physicalTop;this._iterateItems(function(pidx,vidx){if(physicalOffset<this._scrollBottom){this._lastVisibleIndexVal=vidx}else{return true}physicalOffset+=this._getPhysicalSizeIncrement(pidx)})}}return this._lastVisibleIndexVal},get _defaultScrollTarget(){return this},get _virtualRowCount(){return Math.ceil(this._virtualCount/this._itemsPerRow)},get _estRowsInView(){return Math.ceil(this._viewportHeight/this._rowHeight)},get _physicalRows(){return Math.ceil(this._physicalCount/this._itemsPerRow)},ready:function(){this.addEventListener("focus",this._didFocus.bind(this),true)},attached:function(){if(this._physicalCount===0){this._debounceTemplate(this._render)}this.listen(this,"iron-resize","_resizeHandler")},detached:function(){this.unlisten(this,"iron-resize","_resizeHandler")},_setOverflow:function(scrollTarget){this.style.webkitOverflowScrolling=scrollTarget===this?"touch":"";this.style.overflow=scrollTarget===this?"auto":""},updateViewportBoundaries:function(){this._scrollerPaddingTop=this.scrollTarget===this?0:parseInt(window.getComputedStyle(this)["padding-top"],10);this._viewportWidth=this.$.items.offsetWidth;this._viewportHeight=this._scrollTargetHeight;this.grid&&this._updateGridMetrics()},_scrollHandler:function(){var scrollTop=Math.max(0,Math.min(this._maxScrollTop,this._scrollTop));var delta=scrollTop-this._scrollPosition;var isScrollingDown=delta>=0;this._scrollPosition=scrollTop;this._firstVisibleIndexVal=null;this._lastVisibleIndexVal=null;if(Math.abs(delta)>this._physicalSize){var idxAdjustment=Math.round(delta/this._physicalAverage)*this._itemsPerRow;this._physicalTop=this._physicalTop+delta;this._virtualStart=this._virtualStart+idxAdjustment;this._physicalStart=this._physicalStart+idxAdjustment;this._update()}else{var reusables=this._getReusables(isScrollingDown);if(isScrollingDown){this._physicalTop=reusables.physicalTop;this._virtualStart=this._virtualStart+reusables.indexes.length;this._physicalStart=this._physicalStart+reusables.indexes.length}else{this._virtualStart=this._virtualStart-reusables.indexes.length;this._physicalStart=this._physicalStart-reusables.indexes.length}if(reusables.indexes.length===0){this._increasePoolIfNeeded()}else{this._update(reusables.indexes,isScrollingDown?null:reusables.indexes)}}},_getReusables:function(fromTop){var ith,lastIth,offsetContent,physicalItemHeight;var idxs=[];var protectedOffsetContent=this._hiddenContentSize*this._ratio;var virtualStart=this._virtualStart;var virtualEnd=this._virtualEnd;var physicalCount=this._physicalCount;var physicalTop=this._physicalTop+this._scrollerPaddingTop;var scrollTop=this._scrollTop;var scrollBottom=this._scrollBottom;if(fromTop){ith=this._physicalStart;lastIth=this._physicalEnd;offsetContent=scrollTop-physicalTop}else{ith=this._physicalEnd;lastIth=this._physicalStart;offsetContent=this._physicalBottom-scrollBottom}while(true){physicalItemHeight=this._getPhysicalSizeIncrement(ith);offsetContent=offsetContent-physicalItemHeight;if(idxs.length>=physicalCount||offsetContent<=protectedOffsetContent){break}if(fromTop){if(virtualEnd+idxs.length+1>=this._virtualCount){break}if(physicalTop+physicalItemHeight>=scrollTop){break}idxs.push(ith);physicalTop=physicalTop+physicalItemHeight;ith=(ith+1)%physicalCount}else{if(virtualStart-idxs.length<=0){break}if(physicalTop+this._physicalSize-physicalItemHeight<=scrollBottom){break}idxs.push(ith);physicalTop=physicalTop-physicalItemHeight;ith=ith===0?physicalCount-1:ith-1}}return{indexes:idxs,physicalTop:physicalTop-this._scrollerPaddingTop}},_update:function(itemSet,movingUp){if(itemSet&&itemSet.length===0){return}this._manageFocus();this._assignModels(itemSet);this._updateMetrics(itemSet);if(movingUp){while(movingUp.length){var idx=movingUp.pop();this._physicalTop-=this._getPhysicalSizeIncrement(idx)}}this._positionItems();this._updateScrollerSize();this._increasePoolIfNeeded()},_createPool:function(size){var physicalItems=new Array(size);this._ensureTemplatized();for(var i=0;i<size;i++){var inst=this.stamp(null);physicalItems[i]=inst.root.querySelector("*");Polymer.dom(this).appendChild(inst.root)}return physicalItems},_increasePoolIfNeeded:function(){if(this._viewportHeight===0){return false}var self=this;var isClientFull=this._physicalBottom>=this._scrollBottom&&this._physicalTop<=this._scrollPosition;if(this._physicalSize>=this._optPhysicalSize&&isClientFull){return false}var maxPoolSize=Math.round(this._physicalCount*.5);if(!isClientFull){this._debounceTemplate(this._increasePool.bind(this,maxPoolSize));return true}this._yield(function(){self._increasePool(Math.min(maxPoolSize,Math.max(1,Math.round(50/self._templateCost))))});return true},_yield:function(cb){var g=window;var handle=g.requestIdleCallback?g.requestIdleCallback(cb):g.setTimeout(cb,16);Polymer.dom.addDebouncer({complete:function(){g.cancelIdleCallback?g.cancelIdleCallback(handle):g.clearTimeout(handle);cb()}})},_increasePool:function(missingItems){var nextPhysicalCount=Math.min(this._physicalCount+missingItems,this._virtualCount-this._virtualStart,Math.max(this.maxPhysicalCount,DEFAULT_PHYSICAL_COUNT));var prevPhysicalCount=this._physicalCount;var delta=nextPhysicalCount-prevPhysicalCount;var ts=window.performance.now();if(delta<=0){return}[].push.apply(this._physicalItems,this._createPool(delta));[].push.apply(this._physicalSizes,new Array(delta));this._physicalCount=prevPhysicalCount+delta;if(this._physicalStart>this._physicalEnd&&this._isIndexRendered(this._focusedIndex)&&this._getPhysicalIndex(this._focusedIndex)<this._physicalEnd){this._physicalStart=this._physicalStart+delta}this._update();this._templateCost=(window.performance.now()-ts)/delta},_render:function(){if(this.isAttached&&this._isVisible){if(this._physicalCount===0){this.updateViewportBoundaries();this._increasePool(DEFAULT_PHYSICAL_COUNT)}else{var reusables=this._getReusables(true);this._physicalTop=reusables.physicalTop;this._virtualStart=this._virtualStart+reusables.indexes.length;this._physicalStart=this._physicalStart+reusables.indexes.length;this._update(reusables.indexes);this._update()}}},_ensureTemplatized:function(){if(!this.ctor){var props={};props.__key__=true;props[this.as]=true;props[this.indexAs]=true;props[this.selectedAs]=true;props.tabIndex=true;this._instanceProps=props;this._userTemplate=Polymer.dom(this).querySelector("template");if(this._userTemplate){this.templatize(this._userTemplate)}else{console.warn("iron-list requires a template to be provided in light-dom")}}},_getStampedChildren:function(){return this._physicalItems},_forwardInstancePath:function(inst,path,value){if(path.indexOf(this.as+".")===0){this.notifyPath("items."+inst.__key__+"."+path.slice(this.as.length+1),value)}},_forwardParentProp:function(prop,value){if(this._physicalItems){this._physicalItems.forEach(function(item){item._templateInstance[prop]=value},this)}},_forwardParentPath:function(path,value){if(this._physicalItems){this._physicalItems.forEach(function(item){item._templateInstance.notifyPath(path,value,true)},this)}},_forwardItemPath:function(path,value){if(!this._physicalIndexForKey){return}var dot=path.indexOf(".");var key=path.substring(0,dot<0?path.length:dot);var idx=this._physicalIndexForKey[key];var offscreenItem=this._offscreenFocusedItem;var el=offscreenItem&&offscreenItem._templateInstance.__key__===key?offscreenItem:this._physicalItems[idx];if(!el||el._templateInstance.__key__!==key){return}if(dot>=0){path=this.as+"."+path.substring(dot+1);el._templateInstance.notifyPath(path,value,true)}else{var currentItem=el._templateInstance[this.as];if(Array.isArray(this.selectedItems)){for(var i=0;i<this.selectedItems.length;i++){if(this.selectedItems[i]===currentItem){this.set("selectedItems."+i,value);break}}}else if(this.selectedItem===currentItem){this.set("selectedItem",value)}el._templateInstance[this.as]=value}},_itemsChanged:function(change){if(change.path==="items"){this._virtualStart=0;this._physicalTop=0;this._virtualCount=this.items?this.items.length:0;this._collection=this.items?Polymer.Collection.get(this.items):null;this._physicalIndexForKey={};this._firstVisibleIndexVal=null;this._lastVisibleIndexVal=null;this._physicalCount=this._physicalCount||0;this._physicalItems=this._physicalItems||[];this._physicalSizes=this._physicalSizes||[];this._physicalStart=0;this._resetScrollPosition(0);this._removeFocusedItem();this._debounceTemplate(this._render)}else if(change.path==="items.splices"){this._adjustVirtualIndex(change.value.indexSplices);this._virtualCount=this.items?this.items.length:0;this._debounceTemplate(this._render)}else{this._forwardItemPath(change.path.split(".").slice(1).join("."),change.value)}},_adjustVirtualIndex:function(splices){splices.forEach(function(splice){splice.removed.forEach(this._removeItem,this);if(splice.index<this._virtualStart){var delta=Math.max(splice.addedCount-splice.removed.length,splice.index-this._virtualStart);this._virtualStart=this._virtualStart+delta;if(this._focusedIndex>=0){this._focusedIndex=this._focusedIndex+delta}}},this)},_removeItem:function(item){this.$.selector.deselect(item);if(this._focusedItem&&this._focusedItem._templateInstance[this.as]===item){this._removeFocusedItem()}},_iterateItems:function(fn,itemSet){var pidx,vidx,rtn,i;if(arguments.length===2&&itemSet){for(i=0;i<itemSet.length;i++){pidx=itemSet[i];vidx=this._computeVidx(pidx);if((rtn=fn.call(this,pidx,vidx))!=null){return rtn}}}else{pidx=this._physicalStart;vidx=this._virtualStart;for(;pidx<this._physicalCount;pidx++,vidx++){if((rtn=fn.call(this,pidx,vidx))!=null){return rtn}}for(pidx=0;pidx<this._physicalStart;pidx++,vidx++){if((rtn=fn.call(this,pidx,vidx))!=null){return rtn}}}},_computeVidx:function(pidx){if(pidx>=this._physicalStart){return this._virtualStart+(pidx-this._physicalStart)}return this._virtualStart+(this._physicalCount-this._physicalStart)+pidx},_assignModels:function(itemSet){this._iterateItems(function(pidx,vidx){var el=this._physicalItems[pidx];var inst=el._templateInstance;var item=this.items&&this.items[vidx];if(item!=null){inst[this.as]=item;inst.__key__=this._collection.getKey(item);inst[this.selectedAs]=this.$.selector.isSelected(item);inst[this.indexAs]=vidx;inst.tabIndex=this._focusedIndex===vidx?0:-1;this._physicalIndexForKey[inst.__key__]=pidx;el.removeAttribute("hidden")}else{inst.__key__=null;el.setAttribute("hidden","")}},itemSet)},_updateMetrics:function(itemSet){Polymer.dom.flush();var newPhysicalSize=0;var oldPhysicalSize=0;var prevAvgCount=this._physicalAverageCount;var prevPhysicalAvg=this._physicalAverage;this._iterateItems(function(pidx,vidx){oldPhysicalSize+=this._physicalSizes[pidx]||0;this._physicalSizes[pidx]=this._physicalItems[pidx].offsetHeight;newPhysicalSize+=this._physicalSizes[pidx];this._physicalAverageCount+=this._physicalSizes[pidx]?1:0},itemSet);if(this.grid){this._updateGridMetrics();this._physicalSize=Math.ceil(this._physicalCount/this._itemsPerRow)*this._rowHeight}else{this._physicalSize=this._physicalSize+newPhysicalSize-oldPhysicalSize}if(this._physicalAverageCount!==prevAvgCount){this._physicalAverage=Math.round((prevPhysicalAvg*prevAvgCount+newPhysicalSize)/this._physicalAverageCount)}},_updateGridMetrics:function(){this._itemWidth=this._physicalCount>0?this._physicalItems[0].getBoundingClientRect().width:200;this._rowHeight=this._physicalCount>0?this._physicalItems[0].offsetHeight:200;this._itemsPerRow=this._itemWidth?Math.floor(this._viewportWidth/this._itemWidth):this._itemsPerRow},_positionItems:function(){this._adjustScrollPosition();var y=this._physicalTop;if(this.grid){var totalItemWidth=this._itemsPerRow*this._itemWidth;var rowOffset=(this._viewportWidth-totalItemWidth)/2;this._iterateItems(function(pidx,vidx){var modulus=vidx%this._itemsPerRow;var x=Math.floor(modulus*this._itemWidth+rowOffset);this.translate3d(x+"px",y+"px",0,this._physicalItems[pidx]);if(this._shouldRenderNextRow(vidx)){y+=this._rowHeight}})}else{this._iterateItems(function(pidx,vidx){this.translate3d(0,y+"px",0,this._physicalItems[pidx]);y+=this._physicalSizes[pidx]})}},_getPhysicalSizeIncrement:function(pidx){if(!this.grid){return this._physicalSizes[pidx]}if(this._computeVidx(pidx)%this._itemsPerRow!==this._itemsPerRow-1){return 0}return this._rowHeight},_shouldRenderNextRow:function(vidx){return vidx%this._itemsPerRow===this._itemsPerRow-1},_adjustScrollPosition:function(){var deltaHeight=this._virtualStart===0?this._physicalTop:Math.min(this._scrollPosition+this._physicalTop,0);if(deltaHeight){this._physicalTop=this._physicalTop-deltaHeight;if(!IOS_TOUCH_SCROLLING&&this._physicalTop!==0){this._resetScrollPosition(this._scrollTop-deltaHeight)}}},_resetScrollPosition:function(pos){if(this.scrollTarget){this._scrollTop=pos;this._scrollPosition=this._scrollTop}},_updateScrollerSize:function(forceUpdate){if(this.grid){this._estScrollHeight=this._virtualRowCount*this._rowHeight}else{this._estScrollHeight=this._physicalBottom+Math.max(this._virtualCount-this._physicalCount-this._virtualStart,0)*this._physicalAverage}forceUpdate=forceUpdate||this._scrollHeight===0;forceUpdate=forceUpdate||this._scrollPosition>=this._estScrollHeight-this._physicalSize;forceUpdate=forceUpdate||this.grid&&this.$.items.style.height<this._estScrollHeight;if(forceUpdate||Math.abs(this._estScrollHeight-this._scrollHeight)>=this._optPhysicalSize){this.$.items.style.height=this._estScrollHeight+"px";this._scrollHeight=this._estScrollHeight}},scrollToItem:function(item){return this.scrollToIndex(this.items.indexOf(item))},scrollToIndex:function(idx){if(typeof idx!=="number"||idx<0||idx>this.items.length-1){return}Polymer.dom.flush();if(this._physicalCount===0){return}idx=Math.min(Math.max(idx,0),this._virtualCount-1);if(!this._isIndexRendered(idx)||idx>=this._maxVirtualStart){this._virtualStart=this.grid?idx-this._itemsPerRow*2:idx-1}this._manageFocus();this._assignModels();this._updateMetrics();this._physicalTop=Math.floor(this._virtualStart/this._itemsPerRow)*this._physicalAverage;var currentTopItem=this._physicalStart;var currentVirtualItem=this._virtualStart;var targetOffsetTop=0;var hiddenContentSize=this._hiddenContentSize;while(currentVirtualItem<idx&&targetOffsetTop<=hiddenContentSize){targetOffsetTop=targetOffsetTop+this._getPhysicalSizeIncrement(currentTopItem);currentTopItem=(currentTopItem+1)%this._physicalCount;currentVirtualItem++}this._updateScrollerSize(true);this._positionItems();this._resetScrollPosition(this._physicalTop+this._scrollerPaddingTop+targetOffsetTop);this._increasePoolIfNeeded();this._firstVisibleIndexVal=null;this._lastVisibleIndexVal=null},_resetAverage:function(){this._physicalAverage=0;this._physicalAverageCount=0},_resizeHandler:function(){var delta=Math.abs(this._viewportHeight-this._scrollTargetHeight);if(IOS&&delta>0&&delta<100){return}Polymer.dom.addDebouncer(this.debounce("_debounceTemplate",function(){this.updateViewportBoundaries();this._render();if(this._isVisible){this.toggleScrollListener(true);if(this._physicalCount>0){this._resetAverage();this.scrollToIndex(this.firstVisibleIndex)}}else{this.toggleScrollListener(false)}}.bind(this),1))},_getModelFromItem:function(item){var key=this._collection.getKey(item);var pidx=this._physicalIndexForKey[key];if(pidx!=null){return this._physicalItems[pidx]._templateInstance}return null},_getNormalizedItem:function(item){if(this._collection.getKey(item)===undefined){if(typeof item==="number"){item=this.items[item];if(!item){throw new RangeError("<item> not found")}return item}throw new TypeError("<item> should be a valid item")}return item},selectItem:function(item){item=this._getNormalizedItem(item);var model=this._getModelFromItem(item);if(!this.multiSelection&&this.selectedItem){this.deselectItem(this.selectedItem)}if(model){model[this.selectedAs]=true}this.$.selector.select(item);this.updateSizeForItem(item)},deselectItem:function(item){item=this._getNormalizedItem(item);var model=this._getModelFromItem(item);if(model){model[this.selectedAs]=false}this.$.selector.deselect(item);this.updateSizeForItem(item)},toggleSelectionForItem:function(item){item=this._getNormalizedItem(item);if(this.$.selector.isSelected(item)){this.deselectItem(item)}else{this.selectItem(item)}},clearSelection:function(){function unselect(item){var model=this._getModelFromItem(item);if(model){model[this.selectedAs]=false}}if(Array.isArray(this.selectedItems)){this.selectedItems.forEach(unselect,this)}else if(this.selectedItem){unselect.call(this,this.selectedItem)}this.$.selector.clearSelection()},_selectionEnabledChanged:function(selectionEnabled){var handler=selectionEnabled?this.listen:this.unlisten;handler.call(this,this,"tap","_selectionHandler")},_selectionHandler:function(e){var model=this.modelForElement(e.target);if(!model){return}var modelTabIndex,activeElTabIndex;var target=Polymer.dom(e).path[0];var activeEl=Polymer.dom(this.domHost?this.domHost.root:document).activeElement;var physicalItem=this._physicalItems[this._getPhysicalIndex(model[this.indexAs])];if(target.localName==="input"||target.localName==="button"||target.localName==="select"){
+return}modelTabIndex=model.tabIndex;model.tabIndex=SECRET_TABINDEX;activeElTabIndex=activeEl?activeEl.tabIndex:-1;model.tabIndex=modelTabIndex;if(activeEl&&physicalItem!==activeEl&&physicalItem.contains(activeEl)&&activeElTabIndex!==SECRET_TABINDEX){return}this.toggleSelectionForItem(model[this.as])},_multiSelectionChanged:function(multiSelection){this.clearSelection();this.$.selector.multi=multiSelection},updateSizeForItem:function(item){item=this._getNormalizedItem(item);var key=this._collection.getKey(item);var pidx=this._physicalIndexForKey[key];if(pidx!=null){this._updateMetrics([pidx]);this._positionItems()}},_manageFocus:function(){var fidx=this._focusedIndex;if(fidx>=0&&fidx<this._virtualCount){if(this._isIndexRendered(fidx)){this._restoreFocusedItem()}else{this._createFocusBackfillItem()}}else if(this._virtualCount>0&&this._physicalCount>0){this._focusedIndex=this._virtualStart;this._focusedItem=this._physicalItems[this._physicalStart]}},_isIndexRendered:function(idx){return idx>=this._virtualStart&&idx<=this._virtualEnd},_isIndexVisible:function(idx){return idx>=this.firstVisibleIndex&&idx<=this.lastVisibleIndex},_getPhysicalIndex:function(idx){return this._physicalIndexForKey[this._collection.getKey(this._getNormalizedItem(idx))]},_focusPhysicalItem:function(idx){if(idx<0||idx>=this._virtualCount){return}this._restoreFocusedItem();if(!this._isIndexRendered(idx)){this.scrollToIndex(idx)}var physicalItem=this._physicalItems[this._getPhysicalIndex(idx)];var model=physicalItem._templateInstance;var focusable;model.tabIndex=SECRET_TABINDEX;if(physicalItem.tabIndex===SECRET_TABINDEX){focusable=physicalItem}if(!focusable){focusable=Polymer.dom(physicalItem).querySelector('[tabindex="'+SECRET_TABINDEX+'"]')}model.tabIndex=0;this._focusedIndex=idx;focusable&&focusable.focus()},_removeFocusedItem:function(){if(this._offscreenFocusedItem){Polymer.dom(this).removeChild(this._offscreenFocusedItem)}this._offscreenFocusedItem=null;this._focusBackfillItem=null;this._focusedItem=null;this._focusedIndex=-1},_createFocusBackfillItem:function(){var fidx=this._focusedIndex;var pidx=this._getPhysicalIndex(fidx);if(this._offscreenFocusedItem||pidx==null||fidx<0){return}if(!this._focusBackfillItem){var stampedTemplate=this.stamp(null);this._focusBackfillItem=stampedTemplate.root.querySelector("*");Polymer.dom(this).appendChild(stampedTemplate.root)}this._offscreenFocusedItem=this._physicalItems[pidx];this._offscreenFocusedItem._templateInstance.tabIndex=0;this._physicalItems[pidx]=this._focusBackfillItem;this.translate3d(0,HIDDEN_Y,0,this._offscreenFocusedItem)},_restoreFocusedItem:function(){var pidx,fidx=this._focusedIndex;if(!this._offscreenFocusedItem||this._focusedIndex<0){return}this._assignModels();pidx=this._getPhysicalIndex(fidx);if(pidx!=null){this._focusBackfillItem=this._physicalItems[pidx];this._focusBackfillItem._templateInstance.tabIndex=-1;this._physicalItems[pidx]=this._offscreenFocusedItem;this._offscreenFocusedItem=null;this.translate3d(0,HIDDEN_Y,0,this._focusBackfillItem)}},_didFocus:function(e){var targetModel=this.modelForElement(e.target);var focusedModel=this._focusedItem?this._focusedItem._templateInstance:null;var hasOffscreenFocusedItem=this._offscreenFocusedItem!==null;var fidx=this._focusedIndex;if(!targetModel||!focusedModel){return}if(focusedModel===targetModel){if(!this._isIndexVisible(fidx)){this.scrollToIndex(fidx)}}else{this._restoreFocusedItem();focusedModel.tabIndex=-1;targetModel.tabIndex=0;fidx=targetModel[this.indexAs];this._focusedIndex=fidx;this._focusedItem=this._physicalItems[this._getPhysicalIndex(fidx)];if(hasOffscreenFocusedItem&&!this._offscreenFocusedItem){this._update()}}},_didMoveUp:function(){this._focusPhysicalItem(this._focusedIndex-1)},_didMoveDown:function(e){e.detail.keyboardEvent.preventDefault();this._focusPhysicalItem(this._focusedIndex+1)},_didEnter:function(e){this._focusPhysicalItem(this._focusedIndex);this._selectionHandler(e.detail.keyboardEvent)}})})();
 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 cr.define("downloads",function(){function chromeSendWithId(chromeSendName){return function(id){chrome.send(chromeSendName,[id])}}function ActionService(){this.searchTerms_=[]}function trim(s){return s.trim()}function truthy(value){return!!value}ActionService.splitTerms=function(searchText){return searchText.split(/"([^"]*)"/).map(trim).filter(truthy)};ActionService.prototype={cancel:chromeSendWithId("cancel"),clearAll:function(){if(loadTimeData.getBoolean("allowDeletingHistory")){chrome.send("clearAll");this.search("")}},discardDangerous:chromeSendWithId("discardDangerous"),download:function(url){var a=document.createElement("a");a.href=url;a.setAttribute("download","");a.click()},drag:chromeSendWithId("drag"),loadMore:function(){chrome.send("getDownloads",this.searchTerms_)},isSearching:function(){return this.searchTerms_.length>0},openDownloadsFolder:chrome.send.bind(chrome,"openDownloadsFolder"),openFile:chromeSendWithId("openFile"),pause:chromeSendWithId("pause"),remove:chromeSendWithId("remove"),resume:chromeSendWithId("resume"),saveDangerous:chromeSendWithId("saveDangerous"),search:function(searchText){var searchTerms=ActionService.splitTerms(searchText);var sameTerms=searchTerms.length==this.searchTerms_.length;for(var i=0;sameTerms&&i<searchTerms.length;++i){if(searchTerms[i]!=this.searchTerms_[i])sameTerms=false}if(sameTerms)return false;this.searchTerms_=searchTerms;this.loadMore();return true},show:chromeSendWithId("show"),undo:chrome.send.bind(chrome,"undo")};cr.addSingletonGetter(ActionService);return{ActionService:ActionService}});
 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 cr.define("downloads",function(){var DangerType={NOT_DANGEROUS:"NOT_DANGEROUS",DANGEROUS_FILE:"DANGEROUS_FILE",DANGEROUS_URL:"DANGEROUS_URL",DANGEROUS_CONTENT:"DANGEROUS_CONTENT",UNCOMMON_CONTENT:"UNCOMMON_CONTENT",DANGEROUS_HOST:"DANGEROUS_HOST",POTENTIALLY_UNWANTED:"POTENTIALLY_UNWANTED"};var States={IN_PROGRESS:"IN_PROGRESS",CANCELLED:"CANCELLED",COMPLETE:"COMPLETE",PAUSED:"PAUSED",DANGEROUS:"DANGEROUS",INTERRUPTED:"INTERRUPTED"};return{DangerType:DangerType,States:States}});
 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 var ActionLink=document.registerElement("action-link",{prototype:{__proto__:HTMLAnchorElement.prototype,createdCallback:function(){this.tabIndex=this.disabled?-1:0;if(!this.hasAttribute("role"))this.setAttribute("role","link");this.addEventListener("keydown",function(e){if(!this.disabled&&e.key=="Enter"&&!this.href){window.setTimeout(this.click.bind(this),0)}});function preventDefault(e){e.preventDefault()}function removePreventDefault(){document.removeEventListener("selectstart",preventDefault);document.removeEventListener("mouseup",removePreventDefault)}this.addEventListener("mousedown",function(){document.addEventListener("selectstart",preventDefault);document.addEventListener("mouseup",removePreventDefault);if(document.activeElement!=this)this.classList.add("no-outline")});this.addEventListener("blur",function(){this.classList.remove("no-outline")})},set disabled(disabled){if(disabled)HTMLAnchorElement.prototype.setAttribute.call(this,"disabled","");else HTMLAnchorElement.prototype.removeAttribute.call(this,"disabled");this.tabIndex=disabled?-1:0},get disabled(){return this.hasAttribute("disabled")},setAttribute:function(attr,val){if(attr.toLowerCase()=="disabled")this.disabled=true;else HTMLAnchorElement.prototype.setAttribute.apply(this,arguments)},removeAttribute:function(attr){if(attr.toLowerCase()=="disabled")this.disabled=false;else HTMLAnchorElement.prototype.removeAttribute.apply(this,arguments)}},"extends":"a"});(function(){var metaDatas={};var metaArrays={};var singleton=null;Polymer.IronMeta=Polymer({is:"iron-meta",properties:{type:{type:String,value:"default",observer:"_typeChanged"},key:{type:String,observer:"_keyChanged"},value:{type:Object,notify:true,observer:"_valueChanged"},self:{type:Boolean,observer:"_selfChanged"},list:{type:Array,notify:true}},hostAttributes:{hidden:true},factoryImpl:function(config){if(config){for(var n in config){switch(n){case"type":case"key":case"value":this[n]=config[n];break}}}},created:function(){this._metaDatas=metaDatas;this._metaArrays=metaArrays},_keyChanged:function(key,old){this._resetRegistration(old)},_valueChanged:function(value){this._resetRegistration(this.key)},_selfChanged:function(self){if(self){this.value=this}},_typeChanged:function(type){this._unregisterKey(this.key);if(!metaDatas[type]){metaDatas[type]={}}this._metaData=metaDatas[type];if(!metaArrays[type]){metaArrays[type]=[]}this.list=metaArrays[type];this._registerKeyValue(this.key,this.value)},byKey:function(key){return this._metaData&&this._metaData[key]},_resetRegistration:function(oldKey){this._unregisterKey(oldKey);this._registerKeyValue(this.key,this.value)},_unregisterKey:function(key){this._unregister(key,this._metaData,this.list)},_registerKeyValue:function(key,value){this._register(key,value,this._metaData,this.list)},_register:function(key,value,data,list){if(key&&data&&value!==undefined){data[key]=value;list.push(value)}},_unregister:function(key,data,list){if(key&&data){if(key in data){var value=data[key];delete data[key];this.arrayDelete(list,value)}}}});Polymer.IronMeta.getIronMeta=function getIronMeta(){if(singleton===null){singleton=new Polymer.IronMeta}return singleton};Polymer.IronMetaQuery=Polymer({is:"iron-meta-query",properties:{type:{type:String,value:"default",observer:"_typeChanged"},key:{type:String,observer:"_keyChanged"},value:{type:Object,notify:true,readOnly:true},list:{type:Array,notify:true}},factoryImpl:function(config){if(config){for(var n in config){switch(n){case"type":case"key":this[n]=config[n];break}}}},created:function(){this._metaDatas=metaDatas;this._metaArrays=metaArrays},_keyChanged:function(key){this._setValue(this._metaData&&this._metaData[key])},_typeChanged:function(type){this._metaData=metaDatas[type];this.list=metaArrays[type];if(this.key){this._keyChanged(this.key)}},byKey:function(key){return this._metaData&&this._metaData[key]}})})();Polymer({is:"iron-icon",properties:{icon:{type:String,observer:"_iconChanged"},theme:{type:String,observer:"_updateIcon"},src:{type:String,observer:"_srcChanged"},_meta:{value:Polymer.Base.create("iron-meta",{type:"iconset"}),observer:"_updateIcon"}},_DEFAULT_ICONSET:"icons",_iconChanged:function(icon){var parts=(icon||"").split(":");this._iconName=parts.pop();this._iconsetName=parts.pop()||this._DEFAULT_ICONSET;this._updateIcon()},_srcChanged:function(src){this._updateIcon()},_usesIconset:function(){return this.icon||!this.src},_updateIcon:function(){if(this._usesIconset()){if(this._img&&this._img.parentNode){Polymer.dom(this.root).removeChild(this._img)}if(this._iconName===""){if(this._iconset){this._iconset.removeIcon(this)}}else if(this._iconsetName&&this._meta){this._iconset=this._meta.byKey(this._iconsetName);if(this._iconset){this._iconset.applyIcon(this,this._iconName,this.theme);this.unlisten(window,"iron-iconset-added","_updateIcon")}else{this.listen(window,"iron-iconset-added","_updateIcon")}}}else{if(this._iconset){this._iconset.removeIcon(this)}if(!this._img){this._img=document.createElement("img");this._img.style.width="100%";this._img.style.height="100%";this._img.draggable=false}this._img.src=this.src;Polymer.dom(this.root).appendChild(this._img)}}});Polymer.IronControlState={properties:{focused:{type:Boolean,value:false,notify:true,readOnly:true,reflectToAttribute:true},disabled:{type:Boolean,value:false,notify:true,observer:"_disabledChanged",reflectToAttribute:true},_oldTabIndex:{type:Number},_boundFocusBlurHandler:{type:Function,value:function(){return this._focusBlurHandler.bind(this)}}},observers:["_changedControlState(focused, disabled)"],ready:function(){this.addEventListener("focus",this._boundFocusBlurHandler,true);this.addEventListener("blur",this._boundFocusBlurHandler,true)},_focusBlurHandler:function(event){if(event.target===this){this._setFocused(event.type==="focus")}else if(!this.shadowRoot){var target=Polymer.dom(event).localTarget;if(!this.isLightDescendant(target)){this.fire(event.type,{sourceEvent:event},{node:this,bubbles:event.bubbles,cancelable:event.cancelable})}}},_disabledChanged:function(disabled,old){this.setAttribute("aria-disabled",disabled?"true":"false");this.style.pointerEvents=disabled?"none":"";if(disabled){this._oldTabIndex=this.tabIndex;this._setFocused(false);this.tabIndex=-1;this.blur()}else if(this._oldTabIndex!==undefined){this.tabIndex=this._oldTabIndex}},_changedControlState:function(){if(this._controlStateChanged){this._controlStateChanged()}}};Polymer.IronButtonStateImpl={properties:{pressed:{type:Boolean,readOnly:true,value:false,reflectToAttribute:true,observer:"_pressedChanged"},toggles:{type:Boolean,value:false,reflectToAttribute:true},active:{type:Boolean,value:false,notify:true,reflectToAttribute:true},pointerDown:{type:Boolean,readOnly:true,value:false},receivedFocusFromKeyboard:{type:Boolean,readOnly:true},ariaActiveAttribute:{type:String,value:"aria-pressed",observer:"_ariaActiveAttributeChanged"}},listeners:{down:"_downHandler",up:"_upHandler",tap:"_tapHandler"},observers:["_detectKeyboardFocus(focused)","_activeChanged(active, ariaActiveAttribute)"],keyBindings:{"enter:keydown":"_asyncClick","space:keydown":"_spaceKeyDownHandler","space:keyup":"_spaceKeyUpHandler"},_mouseEventRe:/^mouse/,_tapHandler:function(){if(this.toggles){this._userActivate(!this.active)}else{this.active=false}},_detectKeyboardFocus:function(focused){this._setReceivedFocusFromKeyboard(!this.pointerDown&&focused)},_userActivate:function(active){if(this.active!==active){this.active=active;this.fire("change")}},_downHandler:function(event){this._setPointerDown(true);this._setPressed(true);this._setReceivedFocusFromKeyboard(false)},_upHandler:function(){this._setPointerDown(false);this._setPressed(false)},_spaceKeyDownHandler:function(event){var keyboardEvent=event.detail.keyboardEvent;var target=Polymer.dom(keyboardEvent).localTarget;if(this.isLightDescendant(target))return;keyboardEvent.preventDefault();keyboardEvent.stopImmediatePropagation();this._setPressed(true)},_spaceKeyUpHandler:function(event){var keyboardEvent=event.detail.keyboardEvent;var target=Polymer.dom(keyboardEvent).localTarget;if(this.isLightDescendant(target))return;if(this.pressed){this._asyncClick()}this._setPressed(false)},_asyncClick:function(){this.async(function(){this.click()},1)},_pressedChanged:function(pressed){this._changedButtonState()},_ariaActiveAttributeChanged:function(value,oldValue){if(oldValue&&oldValue!=value&&this.hasAttribute(oldValue)){this.removeAttribute(oldValue)}},_activeChanged:function(active,ariaActiveAttribute){if(this.toggles){this.setAttribute(this.ariaActiveAttribute,active?"true":"false")}else{this.removeAttribute(this.ariaActiveAttribute)}this._changedButtonState()},_controlStateChanged:function(){if(this.disabled){this._setPressed(false)}else{this._changedButtonState()}},_changedButtonState:function(){if(this._buttonStateChanged){this._buttonStateChanged()}}};Polymer.IronButtonState=[Polymer.IronA11yKeysBehavior,Polymer.IronButtonStateImpl];(function(){var Utility={distance:function(x1,y1,x2,y2){var xDelta=x1-x2;var yDelta=y1-y2;return Math.sqrt(xDelta*xDelta+yDelta*yDelta)},now:window.performance&&window.performance.now?window.performance.now.bind(window.performance):Date.now};function ElementMetrics(element){this.element=element;this.width=this.boundingRect.width;this.height=this.boundingRect.height;this.size=Math.max(this.width,this.height)}ElementMetrics.prototype={get boundingRect(){return this.element.getBoundingClientRect()},furthestCornerDistanceFrom:function(x,y){var topLeft=Utility.distance(x,y,0,0);var topRight=Utility.distance(x,y,this.width,0);var bottomLeft=Utility.distance(x,y,0,this.height);var bottomRight=Utility.distance(x,y,this.width,this.height);return Math.max(topLeft,topRight,bottomLeft,bottomRight)}};function Ripple(element){this.element=element;this.color=window.getComputedStyle(element).color;this.wave=document.createElement("div");this.waveContainer=document.createElement("div");this.wave.style.backgroundColor=this.color;this.wave.classList.add("wave");this.waveContainer.classList.add("wave-container");Polymer.dom(this.waveContainer).appendChild(this.wave);this.resetInteractionState()}Ripple.MAX_RADIUS=300;Ripple.prototype={get recenters(){return this.element.recenters},get center(){return this.element.center},get mouseDownElapsed(){var elapsed;if(!this.mouseDownStart){return 0}elapsed=Utility.now()-this.mouseDownStart;if(this.mouseUpStart){elapsed-=this.mouseUpElapsed}return elapsed},get mouseUpElapsed(){return this.mouseUpStart?Utility.now()-this.mouseUpStart:0},get mouseDownElapsedSeconds(){return this.mouseDownElapsed/1e3},get mouseUpElapsedSeconds(){return this.mouseUpElapsed/1e3},get mouseInteractionSeconds(){return this.mouseDownElapsedSeconds+this.mouseUpElapsedSeconds},get initialOpacity(){return this.element.initialOpacity},get opacityDecayVelocity(){return this.element.opacityDecayVelocity},get radius(){var width2=this.containerMetrics.width*this.containerMetrics.width;var height2=this.containerMetrics.height*this.containerMetrics.height;var waveRadius=Math.min(Math.sqrt(width2+height2),Ripple.MAX_RADIUS)*1.1+5;var duration=1.1-.2*(waveRadius/Ripple.MAX_RADIUS);var timeNow=this.mouseInteractionSeconds/duration;var size=waveRadius*(1-Math.pow(80,-timeNow));return Math.abs(size)},get opacity(){if(!this.mouseUpStart){return this.initialOpacity}return Math.max(0,this.initialOpacity-this.mouseUpElapsedSeconds*this.opacityDecayVelocity)},get outerOpacity(){var outerOpacity=this.mouseUpElapsedSeconds*.3;var waveOpacity=this.opacity;return Math.max(0,Math.min(outerOpacity,waveOpacity))},get isOpacityFullyDecayed(){return this.opacity<.01&&this.radius>=Math.min(this.maxRadius,Ripple.MAX_RADIUS)},get isRestingAtMaxRadius(){return this.opacity>=this.initialOpacity&&this.radius>=Math.min(this.maxRadius,Ripple.MAX_RADIUS)},get isAnimationComplete(){return this.mouseUpStart?this.isOpacityFullyDecayed:this.isRestingAtMaxRadius},get translationFraction(){return Math.min(1,this.radius/this.containerMetrics.size*2/Math.sqrt(2))},get xNow(){if(this.xEnd){return this.xStart+this.translationFraction*(this.xEnd-this.xStart)}return this.xStart},get yNow(){if(this.yEnd){return this.yStart+this.translationFraction*(this.yEnd-this.yStart)}return this.yStart},get isMouseDown(){return this.mouseDownStart&&!this.mouseUpStart},resetInteractionState:function(){this.maxRadius=0;this.mouseDownStart=0;this.mouseUpStart=0;this.xStart=0;this.yStart=0;this.xEnd=0;this.yEnd=0;this.slideDistance=0;this.containerMetrics=new ElementMetrics(this.element)},draw:function(){var scale;var translateString;var dx;var dy;this.wave.style.opacity=this.opacity;scale=this.radius/(this.containerMetrics.size/2);dx=this.xNow-this.containerMetrics.width/2;dy=this.yNow-this.containerMetrics.height/2;this.waveContainer.style.webkitTransform="translate("+dx+"px, "+dy+"px)";this.waveContainer.style.transform="translate3d("+dx+"px, "+dy+"px, 0)";this.wave.style.webkitTransform="scale("+scale+","+scale+")";this.wave.style.transform="scale3d("+scale+","+scale+",1)"},downAction:function(event){var xCenter=this.containerMetrics.width/2;var yCenter=this.containerMetrics.height/2;this.resetInteractionState();this.mouseDownStart=Utility.now();if(this.center){this.xStart=xCenter;this.yStart=yCenter;this.slideDistance=Utility.distance(this.xStart,this.yStart,this.xEnd,this.yEnd)}else{this.xStart=event?event.detail.x-this.containerMetrics.boundingRect.left:this.containerMetrics.width/2;this.yStart=event?event.detail.y-this.containerMetrics.boundingRect.top:this.containerMetrics.height/2}if(this.recenters){this.xEnd=xCenter;this.yEnd=yCenter;this.slideDistance=Utility.distance(this.xStart,this.yStart,this.xEnd,this.yEnd)}this.maxRadius=this.containerMetrics.furthestCornerDistanceFrom(this.xStart,this.yStart);this.waveContainer.style.top=(this.containerMetrics.height-this.containerMetrics.size)/2+"px";this.waveContainer.style.left=(this.containerMetrics.width-this.containerMetrics.size)/2+"px";this.waveContainer.style.width=this.containerMetrics.size+"px";this.waveContainer.style.height=this.containerMetrics.size+"px"},upAction:function(event){if(!this.isMouseDown){return}this.mouseUpStart=Utility.now()},remove:function(){Polymer.dom(this.waveContainer.parentNode).removeChild(this.waveContainer)}};Polymer({is:"paper-ripple",behaviors:[Polymer.IronA11yKeysBehavior],properties:{initialOpacity:{type:Number,value:.25},opacityDecayVelocity:{type:Number,value:.8},recenters:{type:Boolean,value:false},center:{type:Boolean,value:false},ripples:{type:Array,value:function(){return[]}},animating:{type:Boolean,readOnly:true,reflectToAttribute:true,value:false},holdDown:{type:Boolean,value:false,observer:"_holdDownChanged"},noink:{type:Boolean,value:false},_animating:{type:Boolean},_boundAnimate:{type:Function,value:function(){return this.animate.bind(this)}}},get target(){return this.keyEventTarget},keyBindings:{"enter:keydown":"_onEnterKeydown","space:keydown":"_onSpaceKeydown","space:keyup":"_onSpaceKeyup"},attached:function(){if(this.parentNode.nodeType==11){this.keyEventTarget=Polymer.dom(this).getOwnerRoot().host}else{this.keyEventTarget=this.parentNode}var keyEventTarget=this.keyEventTarget;this.listen(keyEventTarget,"up","uiUpAction");this.listen(keyEventTarget,"down","uiDownAction")},detached:function(){this.unlisten(this.keyEventTarget,"up","uiUpAction");this.unlisten(this.keyEventTarget,"down","uiDownAction");this.keyEventTarget=null},get shouldKeepAnimating(){for(var index=0;index<this.ripples.length;++index){if(!this.ripples[index].isAnimationComplete){return true}}return false},simulatedRipple:function(){this.downAction(null);this.async(function(){this.upAction()},1)},uiDownAction:function(event){if(!this.noink){this.downAction(event)}},downAction:function(event){if(this.holdDown&&this.ripples.length>0){return}var ripple=this.addRipple();ripple.downAction(event);if(!this._animating){this._animating=true;this.animate()}},uiUpAction:function(event){if(!this.noink){this.upAction(event)}},upAction:function(event){if(this.holdDown){return}this.ripples.forEach(function(ripple){ripple.upAction(event)});this._animating=true;this.animate()},onAnimationComplete:function(){this._animating=false;this.$.background.style.backgroundColor=null;this.fire("transitionend")},addRipple:function(){var ripple=new Ripple(this);Polymer.dom(this.$.waves).appendChild(ripple.waveContainer);this.$.background.style.backgroundColor=ripple.color;this.ripples.push(ripple);this._setAnimating(true);return ripple},removeRipple:function(ripple){var rippleIndex=this.ripples.indexOf(ripple);if(rippleIndex<0){return}this.ripples.splice(rippleIndex,1);ripple.remove();if(!this.ripples.length){this._setAnimating(false)}},animate:function(){if(!this._animating){return}var index;var ripple;for(index=0;index<this.ripples.length;++index){ripple=this.ripples[index];ripple.draw();this.$.background.style.opacity=ripple.outerOpacity;if(ripple.isOpacityFullyDecayed&&!ripple.isRestingAtMaxRadius){this.removeRipple(ripple)}}if(!this.shouldKeepAnimating&&this.ripples.length===0){this.onAnimationComplete()}else{window.requestAnimationFrame(this._boundAnimate)}},_onEnterKeydown:function(){this.uiDownAction();this.async(this.uiUpAction,1)},_onSpaceKeydown:function(){this.uiDownAction()},_onSpaceKeyup:function(){this.uiUpAction()},_holdDownChanged:function(newVal,oldVal){if(oldVal===undefined){return}if(newVal){this.downAction()}else{this.upAction()}}})})();Polymer.PaperRippleBehavior={properties:{noink:{type:Boolean,observer:"_noinkChanged"},_rippleContainer:{type:Object}},_buttonStateChanged:function(){if(this.focused){this.ensureRipple()}},_downHandler:function(event){Polymer.IronButtonStateImpl._downHandler.call(this,event);if(this.pressed){this.ensureRipple(event)}},ensureRipple:function(optTriggeringEvent){if(!this.hasRipple()){this._ripple=this._createRipple();this._ripple.noink=this.noink;var rippleContainer=this._rippleContainer||this.root;if(rippleContainer){Polymer.dom(rippleContainer).appendChild(this._ripple)}if(optTriggeringEvent){var domContainer=Polymer.dom(this._rippleContainer||this);var target=Polymer.dom(optTriggeringEvent).rootTarget;if(domContainer.deepContains(target)){this._ripple.uiDownAction(optTriggeringEvent)}}}},getRipple:function(){this.ensureRipple();return this._ripple},hasRipple:function(){return Boolean(this._ripple)},_createRipple:function(){return document.createElement("paper-ripple")},_noinkChanged:function(noink){if(this.hasRipple()){this._ripple.noink=noink}}};Polymer.PaperButtonBehaviorImpl={properties:{elevation:{type:Number,reflectToAttribute:true,readOnly:true}},observers:["_calculateElevation(focused, disabled, active, pressed, receivedFocusFromKeyboard)","_computeKeyboardClass(receivedFocusFromKeyboard)"],hostAttributes:{role:"button",tabindex:"0",animated:true},_calculateElevation:function(){var e=1;if(this.disabled){e=0}else if(this.active||this.pressed){e=4}else if(this.receivedFocusFromKeyboard){e=3}this._setElevation(e)},_computeKeyboardClass:function(receivedFocusFromKeyboard){this.toggleClass("keyboard-focus",receivedFocusFromKeyboard)},_spaceKeyDownHandler:function(event){Polymer.IronButtonStateImpl._spaceKeyDownHandler.call(this,event);if(this.hasRipple()&&this.getRipple().ripples.length<1){this._ripple.uiDownAction()}},_spaceKeyUpHandler:function(event){Polymer.IronButtonStateImpl._spaceKeyUpHandler.call(this,event);if(this.hasRipple()){this._ripple.uiUpAction()}}};Polymer.PaperButtonBehavior=[Polymer.IronButtonState,Polymer.IronControlState,Polymer.PaperRippleBehavior,Polymer.PaperButtonBehaviorImpl];Polymer({is:"paper-button",behaviors:[Polymer.PaperButtonBehavior],properties:{raised:{type:Boolean,reflectToAttribute:true,value:false,observer:"_calculateElevation"}},_calculateElevation:function(){if(!this.raised){this._setElevation(0)}else{Polymer.PaperButtonBehaviorImpl._calculateElevation.apply(this)}}});Polymer({is:"paper-icon-button-light","extends":"button",behaviors:[Polymer.PaperRippleBehavior],listeners:{down:"_rippleDown",up:"_rippleUp",focus:"_rippleDown",blur:"_rippleUp"},_rippleDown:function(){this.getRipple().downAction()},_rippleUp:function(){this.getRipple().upAction()},ensureRipple:function(var_args){var lastRipple=this._ripple;Polymer.PaperRippleBehavior.ensureRipple.apply(this,arguments);if(this._ripple&&this._ripple!==lastRipple){this._ripple.center=true;this._ripple.classList.add("circle")}}});Polymer.IronRangeBehavior={properties:{value:{type:Number,value:0,notify:true,reflectToAttribute:true},min:{type:Number,value:0,notify:true},max:{type:Number,value:100,notify:true},step:{type:Number,value:1,notify:true},ratio:{type:Number,value:0,readOnly:true,notify:true}},observers:["_update(value, min, max, step)"],_calcRatio:function(value){return(this._clampValue(value)-this.min)/(this.max-this.min)},_clampValue:function(value){return Math.min(this.max,Math.max(this.min,this._calcStep(value)))},_calcStep:function(value){value=parseFloat(value);if(!this.step){return value}var numSteps=Math.round((value-this.min)/this.step);if(this.step<1){return numSteps/(1/this.step)+this.min}else{return numSteps*this.step+this.min}},_validateValue:function(){var v=this._clampValue(this.value);this.value=this.oldValue=isNaN(v)?this.oldValue:v;return this.value!==v},_update:function(){this._validateValue();this._setRatio(this._calcRatio(this.value)*100)}};Polymer({is:"paper-progress",behaviors:[Polymer.IronRangeBehavior],properties:{secondaryProgress:{type:Number,value:0},secondaryRatio:{type:Number,value:0,readOnly:true},indeterminate:{type:Boolean,value:false,observer:"_toggleIndeterminate"},disabled:{type:Boolean,value:false,reflectToAttribute:true,observer:"_disabledChanged"}},observers:["_progressChanged(secondaryProgress, value, min, max)"],hostAttributes:{role:"progressbar"},_toggleIndeterminate:function(indeterminate){this.toggleClass("indeterminate",indeterminate,this.$.primaryProgress)},_transformProgress:function(progress,ratio){var transform="scaleX("+ratio/100+")";progress.style.transform=progress.style.webkitTransform=transform},_mainRatioChanged:function(ratio){this._transformProgress(this.$.primaryProgress,ratio)},_progressChanged:function(secondaryProgress,value,min,max){secondaryProgress=this._clampValue(secondaryProgress);value=this._clampValue(value);var secondaryRatio=this._calcRatio(secondaryProgress)*100;var mainRatio=this._calcRatio(value)*100;this._setSecondaryRatio(secondaryRatio);this._transformProgress(this.$.secondaryProgress,secondaryRatio);this._transformProgress(this.$.primaryProgress,mainRatio);this.secondaryProgress=secondaryProgress;this.setAttribute("aria-valuenow",value);this.setAttribute("aria-valuemin",min);this.setAttribute("aria-valuemax",max)},_disabledChanged:function(disabled){this.setAttribute("aria-disabled",disabled?"true":"false")},_hideSecondaryProgress:function(secondaryRatio){return secondaryRatio===0}});Polymer({is:"iron-iconset-svg",properties:{name:{type:String,observer:"_nameChanged"},size:{type:Number,value:24},rtlMirroring:{type:Boolean,value:false}},_targetIsRTL:function(target){if(target&&target.nodeType!==Node.ELEMENT_NODE){target=target.host}return target&&window.getComputedStyle(target)["direction"]==="rtl"},attached:function(){this.style.display="none"},getIconNames:function(){this._icons=this._createIconMap();return Object.keys(this._icons).map(function(n){return this.name+":"+n},this)},applyIcon:function(element,iconName){element=element.root||element;this.removeIcon(element);var svg=this._cloneIcon(iconName,this.rtlMirroring&&this._targetIsRTL(element));if(svg){var pde=Polymer.dom(element);pde.insertBefore(svg,pde.childNodes[0]);return element._svgIcon=svg}return null},removeIcon:function(element){element=element.root||element;if(element._svgIcon){Polymer.dom(element).removeChild(element._svgIcon);element._svgIcon=null}},_nameChanged:function(){new Polymer.IronMeta({type:"iconset",key:this.name,value:this});this.async(function(){this.fire("iron-iconset-added",this,{node:window})})},_createIconMap:function(){var icons=Object.create(null);Polymer.dom(this).querySelectorAll("[id]").forEach(function(icon){icons[icon.id]=icon});return icons},_cloneIcon:function(id,mirrorAllowed){this._icons=this._icons||this._createIconMap();return this._prepareSvgClone(this._icons[id],this.size,mirrorAllowed)},_prepareSvgClone:function(sourceSvg,size,mirrorAllowed){if(sourceSvg){var content=sourceSvg.cloneNode(true),svg=document.createElementNS("http://www.w3.org/2000/svg","svg"),viewBox=content.getAttribute("viewBox")||"0 0 "+size+" "+size,cssText="pointer-events: none; display: block; width: 100%; height: 100%;";if(mirrorAllowed&&content.hasAttribute("mirror-in-rtl")){cssText+="-webkit-transform:scale(-1,1);transform:scale(-1,1);"}svg.setAttribute("viewBox",viewBox);svg.setAttribute("preserveAspectRatio","xMidYMid meet");svg.style.cssText=cssText;svg.appendChild(content).removeAttribute("id");return svg}return null}});
 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 cr.define("downloads",function(){var Item=Polymer({is:"downloads-item",properties:{data:{type:Object},completelyOnDisk_:{computed:"computeCompletelyOnDisk_("+"data.state, data.file_externally_removed)",type:Boolean,value:true},controlledBy_:{computed:"computeControlledBy_(data.by_ext_id, data.by_ext_name)",type:String,value:""},isActive_:{computed:"computeIsActive_("+"data.state, data.file_externally_removed)",type:Boolean,value:true},isDangerous_:{computed:"computeIsDangerous_(data.state)",type:Boolean,value:false},isMalware_:{computed:"computeIsMalware_(isDangerous_, data.danger_type)",type:Boolean,value:false},isInProgress_:{computed:"computeIsInProgress_(data.state)",type:Boolean,value:false},pauseOrResumeText_:{computed:"computePauseOrResumeText_(isInProgress_, data.resume)",type:String},showCancel_:{computed:"computeShowCancel_(data.state)",type:Boolean,value:false},showProgress_:{computed:"computeShowProgress_(showCancel_, data.percent)",type:Boolean,value:false}},observers:["observeControlledBy_(controlledBy_)","observeIsDangerous_(isDangerous_, data)"],ready:function(){this.content=this.$.content},chopUrl_:function(url){return url.slice(0,300)},computeClass_:function(){var classes=[];if(this.isActive_)classes.push("is-active");if(this.isDangerous_)classes.push("dangerous");if(this.showProgress_)classes.push("show-progress");return classes.join(" ")},computeCompletelyOnDisk_:function(){return this.data.state==downloads.States.COMPLETE&&!this.data.file_externally_removed},computeControlledBy_:function(){if(!this.data.by_ext_id||!this.data.by_ext_name)return"";var url="chrome://extensions#"+this.data.by_ext_id;var name=this.data.by_ext_name;return loadTimeData.getStringF("controlledByUrl",url,name)},computeDangerIcon_:function(){if(!this.isDangerous_)return"";switch(this.data.danger_type){case downloads.DangerType.DANGEROUS_CONTENT:case downloads.DangerType.DANGEROUS_HOST:case downloads.DangerType.DANGEROUS_URL:case downloads.DangerType.POTENTIALLY_UNWANTED:case downloads.DangerType.UNCOMMON_CONTENT:return"downloads:remove-circle";default:return"cr:warning"}},computeDate_:function(){assert(typeof this.data.hideDate=="boolean");if(this.data.hideDate)return"";return assert(this.data.since_string||this.data.date_string)},computeDescription_:function(){var data=this.data;switch(data.state){case downloads.States.DANGEROUS:var fileName=data.file_name;switch(data.danger_type){case downloads.DangerType.DANGEROUS_FILE:return loadTimeData.getString("dangerFileDesc");case downloads.DangerType.DANGEROUS_URL:case downloads.DangerType.DANGEROUS_CONTENT:case downloads.DangerType.DANGEROUS_HOST:return loadTimeData.getString("dangerDownloadDesc");case downloads.DangerType.UNCOMMON_CONTENT:return loadTimeData.getString("dangerUncommonDesc");case downloads.DangerType.POTENTIALLY_UNWANTED:return loadTimeData.getString("dangerSettingsDesc")}break;case downloads.States.IN_PROGRESS:case downloads.States.PAUSED:return data.progress_status_text}return""},computeIsActive_:function(){return this.data.state!=downloads.States.CANCELLED&&this.data.state!=downloads.States.INTERRUPTED&&!this.data.file_externally_removed},computeIsDangerous_:function(){return this.data.state==downloads.States.DANGEROUS},computeIsInProgress_:function(){return this.data.state==downloads.States.IN_PROGRESS},computeIsMalware_:function(){return this.isDangerous_&&(this.data.danger_type==downloads.DangerType.DANGEROUS_CONTENT||this.data.danger_type==downloads.DangerType.DANGEROUS_HOST||this.data.danger_type==downloads.DangerType.DANGEROUS_URL||this.data.danger_type==downloads.DangerType.POTENTIALLY_UNWANTED)},computePauseOrResumeText_:function(){if(this.isInProgress_)return loadTimeData.getString("controlPause");if(this.data.resume)return loadTimeData.getString("controlResume");return""},computeRemoveStyle_:function(){var canDelete=loadTimeData.getBoolean("allowDeletingHistory");var hideRemove=this.isDangerous_||this.showCancel_||!canDelete;return hideRemove?"visibility: hidden":""},computeShowCancel_:function(){return this.data.state==downloads.States.IN_PROGRESS||this.data.state==downloads.States.PAUSED},computeShowProgress_:function(){return this.showCancel_&&this.data.percent>=-1},computeTag_:function(){switch(this.data.state){case downloads.States.CANCELLED:return loadTimeData.getString("statusCancelled");case downloads.States.INTERRUPTED:return this.data.last_reason_text;case downloads.States.COMPLETE:return this.data.file_externally_removed?loadTimeData.getString("statusRemoved"):""}return""},isIndeterminate_:function(){return this.data.percent==-1},observeControlledBy_:function(){this.$["controlled-by"].innerHTML=this.controlledBy_},observeIsDangerous_:function(){if(!this.data)return;if(this.isDangerous_){this.$.url.removeAttribute("href")}else{this.$.url.href=assert(this.data.url);var filePath=encodeURIComponent(this.data.file_path);var scaleFactor="?scale="+window.devicePixelRatio+"x";this.$["file-icon"].src="chrome://fileicon/"+filePath+scaleFactor}},onCancelTap_:function(){downloads.ActionService.getInstance().cancel(this.data.id)},onDiscardDangerousTap_:function(){downloads.ActionService.getInstance().discardDangerous(this.data.id)},onDragStart_:function(e){e.preventDefault();downloads.ActionService.getInstance().drag(this.data.id)},onFileLinkTap_:function(e){e.preventDefault();downloads.ActionService.getInstance().openFile(this.data.id)},onPauseOrResumeTap_:function(){if(this.isInProgress_)downloads.ActionService.getInstance().pause(this.data.id);else downloads.ActionService.getInstance().resume(this.data.id)},onRemoveTap_:function(){downloads.ActionService.getInstance().remove(this.data.id)},onRetryTap_:function(){downloads.ActionService.getInstance().download(this.data.url)},onSaveDangerousTap_:function(){downloads.ActionService.getInstance().saveDangerous(this.data.id)},onShowTap_:function(){downloads.ActionService.getInstance().show(this.data.id)}});return{Item:Item}});Polymer.PaperItemBehaviorImpl={hostAttributes:{role:"option",tabindex:"0"}};Polymer.PaperItemBehavior=[Polymer.IronButtonState,Polymer.IronControlState,Polymer.PaperItemBehaviorImpl];Polymer({is:"paper-item",behaviors:[Polymer.PaperItemBehavior]});Polymer.IronSelection=function(selectCallback){this.selection=[];this.selectCallback=selectCallback};Polymer.IronSelection.prototype={get:function(){return this.multi?this.selection.slice():this.selection[0]},clear:function(excludes){this.selection.slice().forEach(function(item){if(!excludes||excludes.indexOf(item)<0){this.setItemSelected(item,false)}},this)},isSelected:function(item){return this.selection.indexOf(item)>=0},setItemSelected:function(item,isSelected){if(item!=null){if(isSelected!==this.isSelected(item)){if(isSelected){this.selection.push(item)}else{var i=this.selection.indexOf(item);if(i>=0){this.selection.splice(i,1)}}if(this.selectCallback){this.selectCallback(item,isSelected)}}}},select:function(item){if(this.multi){this.toggle(item)}else if(this.get()!==item){this.setItemSelected(this.get(),false);this.setItemSelected(item,true)}},toggle:function(item){this.setItemSelected(item,!this.isSelected(item))}};Polymer.IronSelectableBehavior={properties:{attrForSelected:{type:String,value:null},selected:{type:String,notify:true},selectedItem:{type:Object,readOnly:true,notify:true},activateEvent:{type:String,value:"tap",observer:"_activateEventChanged"},selectable:String,selectedClass:{type:String,value:"iron-selected"},selectedAttribute:{type:String,value:null},fallbackSelection:{type:String,value:null},items:{type:Array,readOnly:true,notify:true,value:function(){return[]}},_excludedLocalNames:{type:Object,value:function(){return{template:1}}}},observers:["_updateAttrForSelected(attrForSelected)","_updateSelected(selected)","_checkFallback(fallbackSelection)"],created:function(){this._bindFilterItem=this._filterItem.bind(this);this._selection=new Polymer.IronSelection(this._applySelection.bind(this))},attached:function(){this._observer=this._observeItems(this);this._updateItems();if(!this._shouldUpdateSelection){this._updateSelected()}this._addListener(this.activateEvent)},detached:function(){if(this._observer){Polymer.dom(this).unobserveNodes(this._observer)}this._removeListener(this.activateEvent)},indexOf:function(item){return this.items.indexOf(item)},select:function(value){this.selected=value},selectPrevious:function(){var length=this.items.length;var index=(Number(this._valueToIndex(this.selected))-1+length)%length;this.selected=this._indexToValue(index)},selectNext:function(){var index=(Number(this._valueToIndex(this.selected))+1)%this.items.length;this.selected=this._indexToValue(index)},selectIndex:function(index){this.select(this._indexToValue(index))},forceSynchronousItemUpdate:function(){this._updateItems()},get _shouldUpdateSelection(){return this.selected!=null},_checkFallback:function(){if(this._shouldUpdateSelection){this._updateSelected()}},_addListener:function(eventName){this.listen(this,eventName,"_activateHandler")},_removeListener:function(eventName){this.unlisten(this,eventName,"_activateHandler")},_activateEventChanged:function(eventName,old){this._removeListener(old);this._addListener(eventName)},_updateItems:function(){var nodes=Polymer.dom(this).queryDistributedElements(this.selectable||"*");nodes=Array.prototype.filter.call(nodes,this._bindFilterItem);this._setItems(nodes)},_updateAttrForSelected:function(){if(this._shouldUpdateSelection){this.selected=this._indexToValue(this.indexOf(this.selectedItem))}},_updateSelected:function(){this._selectSelected(this.selected)},_selectSelected:function(selected){this._selection.select(this._valueToItem(this.selected));if(this.fallbackSelection&&this.items.length&&this._selection.get()===undefined){this.selected=this.fallbackSelection}},_filterItem:function(node){return!this._excludedLocalNames[node.localName]},_valueToItem:function(value){return value==null?null:this.items[this._valueToIndex(value)]},_valueToIndex:function(value){if(this.attrForSelected){for(var i=0,item;item=this.items[i];i++){if(this._valueForItem(item)==value){return i}}}else{return Number(value)}},_indexToValue:function(index){if(this.attrForSelected){var item=this.items[index];if(item){return this._valueForItem(item)}}else{return index}},_valueForItem:function(item){var propValue=item[Polymer.CaseMap.dashToCamelCase(this.attrForSelected)];return propValue!=undefined?propValue:item.getAttribute(this.attrForSelected)},_applySelection:function(item,isSelected){if(this.selectedClass){this.toggleClass(this.selectedClass,isSelected,item)}if(this.selectedAttribute){this.toggleAttribute(this.selectedAttribute,isSelected,item)}this._selectionChange();this.fire("iron-"+(isSelected?"select":"deselect"),{item:item})},_selectionChange:function(){this._setSelectedItem(this._selection.get())},_observeItems:function(node){return Polymer.dom(node).observeNodes(function(mutation){this._updateItems();if(this._shouldUpdateSelection){this._updateSelected()}this.fire("iron-items-changed",mutation,{bubbles:false,cancelable:false})})},_activateHandler:function(e){var t=e.target;var items=this.items;while(t&&t!=this){var i=items.indexOf(t);if(i>=0){var value=this._indexToValue(i);this._itemActivate(value,t);return}t=t.parentNode}},_itemActivate:function(value,item){if(!this.fire("iron-activate",{selected:value,item:item},{cancelable:true}).defaultPrevented){this.select(value)}}};Polymer.IronMultiSelectableBehaviorImpl={properties:{multi:{type:Boolean,value:false,observer:"multiChanged"},selectedValues:{type:Array,notify:true},selectedItems:{type:Array,readOnly:true,notify:true}},observers:["_updateSelected(selectedValues.splices)"],select:function(value){if(this.multi){if(this.selectedValues){this._toggleSelected(value)}else{this.selectedValues=[value]}}else{this.selected=value}},multiChanged:function(multi){this._selection.multi=multi},get _shouldUpdateSelection(){return this.selected!=null||this.selectedValues!=null&&this.selectedValues.length},_updateAttrForSelected:function(){if(!this.multi){Polymer.IronSelectableBehavior._updateAttrForSelected.apply(this)}else if(this._shouldUpdateSelection){this.selectedValues=this.selectedItems.map(function(selectedItem){return this._indexToValue(this.indexOf(selectedItem))},this).filter(function(unfilteredValue){return unfilteredValue!=null},this)}},_updateSelected:function(){if(this.multi){this._selectMulti(this.selectedValues)}else{this._selectSelected(this.selected)}},_selectMulti:function(values){if(values){var selectedItems=this._valuesToItems(values);this._selection.clear(selectedItems);for(var i=0;i<selectedItems.length;i++){this._selection.setItemSelected(selectedItems[i],true)}if(this.fallbackSelection&&this.items.length&&!this._selection.get().length){var fallback=this._valueToItem(this.fallbackSelection);if(fallback){this.selectedValues=[this.fallbackSelection]}}}else{this._selection.clear()}},_selectionChange:function(){var s=this._selection.get();if(this.multi){this._setSelectedItems(s)}else{this._setSelectedItems([s]);this._setSelectedItem(s)}},_toggleSelected:function(value){var i=this.selectedValues.indexOf(value);var unselected=i<0;if(unselected){this.push("selectedValues",value)}else{this.splice("selectedValues",i,1)}},_valuesToItems:function(values){return values==null?null:values.map(function(value){return this._valueToItem(value)},this)}};Polymer.IronMultiSelectableBehavior=[Polymer.IronSelectableBehavior,Polymer.IronMultiSelectableBehaviorImpl];Polymer.IronMenuBehaviorImpl={properties:{focusedItem:{observer:"_focusedItemChanged",readOnly:true,type:Object},attrForItemTitle:{type:String}},hostAttributes:{role:"menu",tabindex:"0"},observers:["_updateMultiselectable(multi)"],listeners:{focus:"_onFocus",keydown:"_onKeydown","iron-items-changed":"_onIronItemsChanged"},keyBindings:{up:"_onUpKey",down:"_onDownKey",esc:"_onEscKey","shift+tab:keydown":"_onShiftTabDown"},attached:function(){this._resetTabindices()},select:function(value){if(this._defaultFocusAsync){this.cancelAsync(this._defaultFocusAsync);this._defaultFocusAsync=null}var item=this._valueToItem(value);if(item&&item.hasAttribute("disabled"))return;this._setFocusedItem(item);Polymer.IronMultiSelectableBehaviorImpl.select.apply(this,arguments)},_resetTabindices:function(){var selectedItem=this.multi?this.selectedItems&&this.selectedItems[0]:this.selectedItem;this.items.forEach(function(item){item.setAttribute("tabindex",item===selectedItem?"0":"-1")},this)},_updateMultiselectable:function(multi){if(multi){this.setAttribute("aria-multiselectable","true")}else{this.removeAttribute("aria-multiselectable")}},_focusWithKeyboardEvent:function(event){for(var i=0,item;item=this.items[i];i++){var attr=this.attrForItemTitle||"textContent";var title=item[attr]||item.getAttribute(attr);if(!item.hasAttribute("disabled")&&title&&title.trim().charAt(0).toLowerCase()===String.fromCharCode(event.keyCode).toLowerCase()){this._setFocusedItem(item);break}}},_focusPrevious:function(){var length=this.items.length;var curFocusIndex=Number(this.indexOf(this.focusedItem));for(var i=1;i<length+1;i++){var item=this.items[(curFocusIndex-i+length)%length];if(!item.hasAttribute("disabled")){var owner=Polymer.dom(item).getOwnerRoot()||document;this._setFocusedItem(item);if(Polymer.dom(owner).activeElement==item){return}}}},_focusNext:function(){var length=this.items.length;var curFocusIndex=Number(this.indexOf(this.focusedItem));for(var i=1;i<length+1;i++){var item=this.items[(curFocusIndex+i)%length];if(!item.hasAttribute("disabled")){var owner=Polymer.dom(item).getOwnerRoot()||document;this._setFocusedItem(item);if(Polymer.dom(owner).activeElement==item){return}}}},_applySelection:function(item,isSelected){if(isSelected){item.setAttribute("aria-selected","true")}else{item.removeAttribute("aria-selected")}Polymer.IronSelectableBehavior._applySelection.apply(this,arguments)},_focusedItemChanged:function(focusedItem,old){old&&old.setAttribute("tabindex","-1");if(focusedItem){focusedItem.setAttribute("tabindex","0");focusedItem.focus()}},_onIronItemsChanged:function(event){if(event.detail.addedNodes.length){this._resetTabindices()}},_onShiftTabDown:function(event){var oldTabIndex=this.getAttribute("tabindex");Polymer.IronMenuBehaviorImpl._shiftTabPressed=true;this._setFocusedItem(null);this.setAttribute("tabindex","-1");this.async(function(){this.setAttribute("tabindex",oldTabIndex);Polymer.IronMenuBehaviorImpl._shiftTabPressed=false},1)},_onFocus:function(event){if(Polymer.IronMenuBehaviorImpl._shiftTabPressed){return}var rootTarget=Polymer.dom(event).rootTarget;if(rootTarget!==this&&typeof rootTarget.tabIndex!=="undefined"&&!this.isLightDescendant(rootTarget)){return}this._defaultFocusAsync=this.async(function(){var selectedItem=this.multi?this.selectedItems&&this.selectedItems[0]:this.selectedItem;this._setFocusedItem(null);if(selectedItem){this._setFocusedItem(selectedItem)}else if(this.items[0]){this._focusNext()}})},_onUpKey:function(event){this._focusPrevious();event.detail.keyboardEvent.preventDefault()},_onDownKey:function(event){this._focusNext();event.detail.keyboardEvent.preventDefault()},_onEscKey:function(event){this.focusedItem.blur()},_onKeydown:function(event){if(!this.keyboardEventMatchesKeys(event,"up down esc")){this._focusWithKeyboardEvent(event)}event.stopPropagation()},_activateHandler:function(event){Polymer.IronSelectableBehavior._activateHandler.call(this,event);event.stopPropagation()}};Polymer.IronMenuBehaviorImpl._shiftTabPressed=false;Polymer.IronMenuBehavior=[Polymer.IronMultiSelectableBehavior,Polymer.IronA11yKeysBehavior,Polymer.IronMenuBehaviorImpl];(function(){Polymer({is:"paper-menu",behaviors:[Polymer.IronMenuBehavior]})})();Polymer.IronFitBehavior={properties:{sizingTarget:{type:Object,value:function(){return this}},fitInto:{type:Object,value:window},noOverlap:{type:Boolean},positionTarget:{type:Element},horizontalAlign:{type:String},verticalAlign:{type:String},dynamicAlign:{type:Boolean},horizontalOffset:{type:Number,value:0,notify:true},verticalOffset:{type:Number,value:0,notify:true},autoFitOnAttach:{type:Boolean,value:false},_fitInfo:{type:Object}},get _fitWidth(){var fitWidth;if(this.fitInto===window){fitWidth=this.fitInto.innerWidth}else{fitWidth=this.fitInto.getBoundingClientRect().width}return fitWidth},get _fitHeight(){var fitHeight;if(this.fitInto===window){fitHeight=this.fitInto.innerHeight}else{fitHeight=this.fitInto.getBoundingClientRect().height}return fitHeight},get _fitLeft(){var fitLeft;if(this.fitInto===window){fitLeft=0}else{fitLeft=this.fitInto.getBoundingClientRect().left}return fitLeft},get _fitTop(){var fitTop;if(this.fitInto===window){fitTop=0}else{fitTop=this.fitInto.getBoundingClientRect().top}return fitTop},get _defaultPositionTarget(){var parent=Polymer.dom(this).parentNode;if(parent&&parent.nodeType===Node.DOCUMENT_FRAGMENT_NODE){parent=parent.host}return parent},get _localeHorizontalAlign(){if(this._isRTL){if(this.horizontalAlign==="right"){return"left"}if(this.horizontalAlign==="left"){return"right"}}return this.horizontalAlign},attached:function(){this._isRTL=window.getComputedStyle(this).direction=="rtl";this.positionTarget=this.positionTarget||this._defaultPositionTarget;if(this.autoFitOnAttach){if(window.getComputedStyle(this).display==="none"){setTimeout(function(){this.fit()}.bind(this))}else{this.fit()}}},fit:function(){this.position();this.constrain();this.center()},_discoverInfo:function(){if(this._fitInfo){return}var target=window.getComputedStyle(this);var sizer=window.getComputedStyle(this.sizingTarget);this._fitInfo={inlineStyle:{top:this.style.top||"",left:this.style.left||"",position:this.style.position||""},sizerInlineStyle:{maxWidth:this.sizingTarget.style.maxWidth||"",maxHeight:this.sizingTarget.style.maxHeight||"",boxSizing:this.sizingTarget.style.boxSizing||""},positionedBy:{vertically:target.top!=="auto"?"top":target.bottom!=="auto"?"bottom":null,horizontally:target.left!=="auto"?"left":target.right!=="auto"?"right":null},sizedBy:{height:sizer.maxHeight!=="none",width:sizer.maxWidth!=="none",minWidth:parseInt(sizer.minWidth,10)||0,minHeight:parseInt(sizer.minHeight,10)||0},margin:{top:parseInt(target.marginTop,10)||0,right:parseInt(target.marginRight,10)||0,bottom:parseInt(target.marginBottom,10)||0,left:parseInt(target.marginLeft,10)||0}};if(this.verticalOffset){this._fitInfo.margin.top=this._fitInfo.margin.bottom=this.verticalOffset;this._fitInfo.inlineStyle.marginTop=this.style.marginTop||"";this._fitInfo.inlineStyle.marginBottom=this.style.marginBottom||"";this.style.marginTop=this.style.marginBottom=this.verticalOffset+"px"}if(this.horizontalOffset){this._fitInfo.margin.left=this._fitInfo.margin.right=this.horizontalOffset;this._fitInfo.inlineStyle.marginLeft=this.style.marginLeft||"";this._fitInfo.inlineStyle.marginRight=this.style.marginRight||"";this.style.marginLeft=this.style.marginRight=this.horizontalOffset+"px"}},resetFit:function(){var info=this._fitInfo||{};for(var property in info.sizerInlineStyle){this.sizingTarget.style[property]=info.sizerInlineStyle[property]}for(var property in info.inlineStyle){this.style[property]=info.inlineStyle[property]}this._fitInfo=null},refit:function(){var scrollLeft=this.sizingTarget.scrollLeft;var scrollTop=this.sizingTarget.scrollTop;this.resetFit();this.fit();this.sizingTarget.scrollLeft=scrollLeft;this.sizingTarget.scrollTop=scrollTop},position:function(){if(!this.horizontalAlign&&!this.verticalAlign){return}this._discoverInfo();this.style.position="fixed";this.sizingTarget.style.boxSizing="border-box";this.style.left="0px";this.style.top="0px";var rect=this.getBoundingClientRect();var positionRect=this.__getNormalizedRect(this.positionTarget);var fitRect=this.__getNormalizedRect(this.fitInto);var margin=this._fitInfo.margin;var size={width:rect.width+margin.left+margin.right,height:rect.height+margin.top+margin.bottom};var position=this.__getPosition(this._localeHorizontalAlign,this.verticalAlign,size,positionRect,fitRect);var left=position.left+margin.left;var top=position.top+margin.top;var right=Math.min(fitRect.right-margin.right,left+rect.width);var bottom=Math.min(fitRect.bottom-margin.bottom,top+rect.height);var minWidth=this._fitInfo.sizedBy.minWidth;var minHeight=this._fitInfo.sizedBy.minHeight;if(left<margin.left){left=margin.left;if(right-left<minWidth){left=right-minWidth}}if(top<margin.top){top=margin.top;if(bottom-top<minHeight){top=bottom-minHeight}}this.sizingTarget.style.maxWidth=right-left+"px";this.sizingTarget.style.maxHeight=bottom-top+"px";this.style.left=left-rect.left+"px";this.style.top=top-rect.top+"px"},constrain:function(){if(this.horizontalAlign||this.verticalAlign){return}this._discoverInfo();var info=this._fitInfo;if(!info.positionedBy.vertically){this.style.position="fixed";this.style.top="0px"}if(!info.positionedBy.horizontally){this.style.position="fixed";this.style.left="0px"}this.sizingTarget.style.boxSizing="border-box";var rect=this.getBoundingClientRect();if(!info.sizedBy.height){this.__sizeDimension(rect,info.positionedBy.vertically,"top","bottom","Height")}if(!info.sizedBy.width){this.__sizeDimension(rect,info.positionedBy.horizontally,"left","right","Width")}},_sizeDimension:function(rect,positionedBy,start,end,extent){this.__sizeDimension(rect,positionedBy,start,end,extent)},__sizeDimension:function(rect,positionedBy,start,end,extent){var info=this._fitInfo;var fitRect=this.__getNormalizedRect(this.fitInto);var max=extent==="Width"?fitRect.width:fitRect.height;var flip=positionedBy===end;var offset=flip?max-rect[end]:rect[start];var margin=info.margin[flip?start:end];var offsetExtent="offset"+extent;var sizingOffset=this[offsetExtent]-this.sizingTarget[offsetExtent];this.sizingTarget.style["max"+extent]=max-margin-offset-sizingOffset+"px"},center:function(){if(this.horizontalAlign||this.verticalAlign){return}this._discoverInfo();var positionedBy=this._fitInfo.positionedBy;if(positionedBy.vertically&&positionedBy.horizontally){return}this.style.position="fixed";if(!positionedBy.vertically){this.style.top="0px"}if(!positionedBy.horizontally){this.style.left="0px"}var rect=this.getBoundingClientRect();var fitRect=this.__getNormalizedRect(this.fitInto);if(!positionedBy.vertically){var top=fitRect.top-rect.top+(fitRect.height-rect.height)/2;this.style.top=top+"px"}if(!positionedBy.horizontally){var left=fitRect.left-rect.left+(fitRect.width-rect.width)/2;this.style.left=left+"px"}},__getNormalizedRect:function(target){if(target===document.documentElement||target===window){return{top:0,left:0,width:window.innerWidth,height:window.innerHeight,right:window.innerWidth,bottom:window.innerHeight}}return target.getBoundingClientRect()},__getCroppedArea:function(position,size,fitRect){var verticalCrop=Math.min(0,position.top)+Math.min(0,fitRect.bottom-(position.top+size.height));var horizontalCrop=Math.min(0,position.left)+Math.min(0,fitRect.right-(position.left+size.width));return Math.abs(verticalCrop)*size.width+Math.abs(horizontalCrop)*size.height},__getPosition:function(hAlign,vAlign,size,positionRect,fitRect){var positions=[{verticalAlign:"top",horizontalAlign:"left",top:positionRect.top,left:positionRect.left},{verticalAlign:"top",horizontalAlign:"right",top:positionRect.top,left:positionRect.right-size.width},{verticalAlign:"bottom",horizontalAlign:"left",top:positionRect.bottom-size.height,left:positionRect.left},{verticalAlign:"bottom",horizontalAlign:"right",top:positionRect.bottom-size.height,left:positionRect.right-size.width}];if(this.noOverlap){for(var i=0,l=positions.length;i<l;i++){var copy={};for(var key in positions[i]){copy[key]=positions[i][key]}positions.push(copy)}positions[0].top=positions[1].top+=positionRect.height;positions[2].top=positions[3].top-=positionRect.height;positions[4].left=positions[6].left+=positionRect.width;positions[5].left=positions[7].left-=positionRect.width}vAlign=vAlign==="auto"?null:vAlign;hAlign=hAlign==="auto"?null:hAlign;var position;for(var i=0;i<positions.length;i++){var pos=positions[i];if(!this.dynamicAlign&&!this.noOverlap&&pos.verticalAlign===vAlign&&pos.horizontalAlign===hAlign){position=pos;break}var alignOk=(!vAlign||pos.verticalAlign===vAlign)&&(!hAlign||pos.horizontalAlign===hAlign);if(!this.dynamicAlign&&!alignOk){continue}position=position||pos;pos.croppedArea=this.__getCroppedArea(pos,size,fitRect);var diff=pos.croppedArea-position.croppedArea;if(diff<0||diff===0&&alignOk){position=pos}if(position.croppedArea===0&&alignOk){break}}return position}};(function(){"use strict";Polymer({is:"iron-overlay-backdrop",properties:{opened:{reflectToAttribute:true,type:Boolean,value:false,observer:"_openedChanged"}},listeners:{transitionend:"_onTransitionend"},created:function(){this.__openedRaf=null},attached:function(){this.opened&&this._openedChanged(this.opened)},prepare:function(){if(this.opened&&!this.parentNode){Polymer.dom(document.body).appendChild(this)}},open:function(){this.opened=true},close:function(){this.opened=false},complete:function(){if(!this.opened&&this.parentNode===document.body){Polymer.dom(this.parentNode).removeChild(this)}},_onTransitionend:function(event){if(event&&event.target===this){this.complete()}},_openedChanged:function(opened){if(opened){this.prepare()}else{var cs=window.getComputedStyle(this);if(cs.transitionDuration==="0s"||cs.opacity==0){this.complete()}}if(!this.isAttached){return}if(this.__openedRaf){window.cancelAnimationFrame(this.__openedRaf);this.__openedRaf=null}this.scrollTop=this.scrollTop;this.__openedRaf=window.requestAnimationFrame(function(){this.__openedRaf=null;this.toggleClass("opened",this.opened)}.bind(this))}})})();Polymer.IronOverlayManagerClass=function(){this._overlays=[];this._minimumZ=101;this._backdropElement=null;Polymer.Gestures.add(document,"tap",this._onCaptureClick.bind(this));document.addEventListener("focus",this._onCaptureFocus.bind(this),true);document.addEventListener("keydown",this._onCaptureKeyDown.bind(this),true)};Polymer.IronOverlayManagerClass.prototype={constructor:Polymer.IronOverlayManagerClass,get backdropElement(){if(!this._backdropElement){this._backdropElement=document.createElement("iron-overlay-backdrop")}return this._backdropElement},get deepActiveElement(){var active=document.activeElement||document.body;while(active.root&&Polymer.dom(active.root).activeElement){active=Polymer.dom(active.root).activeElement}return active},_bringOverlayAtIndexToFront:function(i){var overlay=this._overlays[i];if(!overlay){return}var lastI=this._overlays.length-1;var currentOverlay=this._overlays[lastI];if(currentOverlay&&this._shouldBeBehindOverlay(overlay,currentOverlay)){lastI--}if(i>=lastI){return}var minimumZ=Math.max(this.currentOverlayZ(),this._minimumZ);if(this._getZ(overlay)<=minimumZ){this._applyOverlayZ(overlay,minimumZ)}while(i<lastI){this._overlays[i]=this._overlays[i+1];i++}this._overlays[lastI]=overlay},addOrRemoveOverlay:function(overlay){if(overlay.opened){this.addOverlay(overlay)}else{this.removeOverlay(overlay)}},addOverlay:function(overlay){var i=this._overlays.indexOf(overlay);if(i>=0){this._bringOverlayAtIndexToFront(i);this.trackBackdrop();return}var insertionIndex=this._overlays.length;var currentOverlay=this._overlays[insertionIndex-1];var minimumZ=Math.max(this._getZ(currentOverlay),this._minimumZ);var newZ=this._getZ(overlay);if(currentOverlay&&this._shouldBeBehindOverlay(overlay,currentOverlay)){this._applyOverlayZ(currentOverlay,minimumZ);insertionIndex--;var previousOverlay=this._overlays[insertionIndex-1];minimumZ=Math.max(this._getZ(previousOverlay),this._minimumZ)}if(newZ<=minimumZ){this._applyOverlayZ(overlay,minimumZ)}this._overlays.splice(insertionIndex,0,overlay);this.trackBackdrop()},removeOverlay:function(overlay){var i=this._overlays.indexOf(overlay);if(i===-1){return}this._overlays.splice(i,1);this.trackBackdrop()},currentOverlay:function(){var i=this._overlays.length-1;return this._overlays[i]},currentOverlayZ:function(){return this._getZ(this.currentOverlay())},ensureMinimumZ:function(minimumZ){this._minimumZ=Math.max(this._minimumZ,minimumZ)},focusOverlay:function(){var current=this.currentOverlay();if(current){current._applyFocus()}},trackBackdrop:function(){var overlay=this._overlayWithBackdrop();if(!overlay&&!this._backdropElement){return}this.backdropElement.style.zIndex=this._getZ(overlay)-1;this.backdropElement.opened=!!overlay},getBackdrops:function(){var backdrops=[];for(var i=0;i<this._overlays.length;i++){if(this._overlays[i].withBackdrop){backdrops.push(this._overlays[i])}}return backdrops},backdropZ:function(){return this._getZ(this._overlayWithBackdrop())-1},_overlayWithBackdrop:function(){for(var i=0;i<this._overlays.length;i++){if(this._overlays[i].withBackdrop){return this._overlays[i]}}},_getZ:function(overlay){var z=this._minimumZ;if(overlay){var z1=Number(overlay.style.zIndex||window.getComputedStyle(overlay).zIndex);if(z1===z1){z=z1}}return z},_setZ:function(element,z){element.style.zIndex=z},_applyOverlayZ:function(overlay,aboveZ){this._setZ(overlay,aboveZ+2)},_overlayInPath:function(path){path=path||[];for(var i=0;i<path.length;i++){if(path[i]._manager===this){return path[i]}}},_onCaptureClick:function(event){var overlay=this.currentOverlay();if(overlay&&this._overlayInPath(Polymer.dom(event).path)!==overlay){overlay._onCaptureClick(event)}},_onCaptureFocus:function(event){var overlay=this.currentOverlay();if(overlay){overlay._onCaptureFocus(event)}},_onCaptureKeyDown:function(event){var overlay=this.currentOverlay();if(overlay){if(Polymer.IronA11yKeysBehavior.keyboardEventMatchesKeys(event,"esc")){overlay._onCaptureEsc(event)}else if(Polymer.IronA11yKeysBehavior.keyboardEventMatchesKeys(event,"tab")){overlay._onCaptureTab(event)}}},_shouldBeBehindOverlay:function(overlay1,overlay2){return!overlay1.alwaysOnTop&&overlay2.alwaysOnTop}};Polymer.IronOverlayManager=new Polymer.IronOverlayManagerClass;(function(){"use strict";Polymer.IronOverlayBehaviorImpl={properties:{opened:{observer:"_openedChanged",type:Boolean,value:false,notify:true},canceled:{
 observer:"_canceledChanged",readOnly:true,type:Boolean,value:false},withBackdrop:{observer:"_withBackdropChanged",type:Boolean},noAutoFocus:{type:Boolean,value:false},noCancelOnEscKey:{type:Boolean,value:false},noCancelOnOutsideClick:{type:Boolean,value:false},closingReason:{type:Object},restoreFocusOnClose:{type:Boolean,value:false},alwaysOnTop:{type:Boolean},_manager:{type:Object,value:Polymer.IronOverlayManager},_focusedChild:{type:Object}},listeners:{"iron-resize":"_onIronResize"},get backdropElement(){return this._manager.backdropElement},get _focusNode(){return this._focusedChild||Polymer.dom(this).querySelector("[autofocus]")||this},get _focusableNodes(){var FOCUSABLE_WITH_DISABLED=["a[href]","area[href]","iframe","[tabindex]","[contentEditable=true]"];var FOCUSABLE_WITHOUT_DISABLED=["input","select","textarea","button"];var selector=FOCUSABLE_WITH_DISABLED.join(':not([tabindex="-1"]),')+':not([tabindex="-1"]),'+FOCUSABLE_WITHOUT_DISABLED.join(':not([disabled]):not([tabindex="-1"]),')+':not([disabled]):not([tabindex="-1"])';var focusables=Polymer.dom(this).querySelectorAll(selector);if(this.tabIndex>=0){focusables.splice(0,0,this)}return focusables.sort(function(a,b){if(a.tabIndex===b.tabIndex){return 0}if(a.tabIndex===0||a.tabIndex>b.tabIndex){return 1}return-1})},ready:function(){this.__isAnimating=false;this.__shouldRemoveTabIndex=false;this.__firstFocusableNode=this.__lastFocusableNode=null;this.__raf=null;this.__restoreFocusNode=null;this._ensureSetup()},attached:function(){if(this.opened){this._openedChanged(this.opened)}this._observer=Polymer.dom(this).observeNodes(this._onNodesChange)},detached:function(){Polymer.dom(this).unobserveNodes(this._observer);this._observer=null;if(this.__raf){window.cancelAnimationFrame(this.__raf);this.__raf=null}this._manager.removeOverlay(this)},toggle:function(){this._setCanceled(false);this.opened=!this.opened},open:function(){this._setCanceled(false);this.opened=true},close:function(){this._setCanceled(false);this.opened=false},cancel:function(event){var cancelEvent=this.fire("iron-overlay-canceled",event,{cancelable:true});if(cancelEvent.defaultPrevented){return}this._setCanceled(true);this.opened=false},_ensureSetup:function(){if(this._overlaySetup){return}this._overlaySetup=true;this.style.outline="none";this.style.display="none"},_openedChanged:function(opened){if(opened){this.removeAttribute("aria-hidden")}else{this.setAttribute("aria-hidden","true")}if(!this.isAttached){return}this.__isAnimating=true;this.__onNextAnimationFrame(this.__openedChanged)},_canceledChanged:function(){this.closingReason=this.closingReason||{};this.closingReason.canceled=this.canceled},_withBackdropChanged:function(){if(this.withBackdrop&&!this.hasAttribute("tabindex")){this.setAttribute("tabindex","-1");this.__shouldRemoveTabIndex=true}else if(this.__shouldRemoveTabIndex){this.removeAttribute("tabindex");this.__shouldRemoveTabIndex=false}if(this.opened&&this.isAttached){this._manager.trackBackdrop()}},_prepareRenderOpened:function(){this.__restoreFocusNode=this._manager.deepActiveElement;this._preparePositioning();this.refit();this._finishPositioning();if(this.noAutoFocus&&document.activeElement===this._focusNode){this._focusNode.blur();this.__restoreFocusNode.focus()}},_renderOpened:function(){this._finishRenderOpened()},_renderClosed:function(){this._finishRenderClosed()},_finishRenderOpened:function(){this.notifyResize();this.__isAnimating=false;var focusableNodes=this._focusableNodes;this.__firstFocusableNode=focusableNodes[0];this.__lastFocusableNode=focusableNodes[focusableNodes.length-1];this.fire("iron-overlay-opened")},_finishRenderClosed:function(){this.style.display="none";this.style.zIndex="";this.notifyResize();this.__isAnimating=false;this.fire("iron-overlay-closed",this.closingReason)},_preparePositioning:function(){this.style.transition=this.style.webkitTransition="none";this.style.transform=this.style.webkitTransform="none";this.style.display=""},_finishPositioning:function(){this.style.display="none";this.scrollTop=this.scrollTop;this.style.transition=this.style.webkitTransition="";this.style.transform=this.style.webkitTransform="";this.style.display="";this.scrollTop=this.scrollTop},_applyFocus:function(){if(this.opened){if(!this.noAutoFocus){this._focusNode.focus()}}else{this._focusNode.blur();this._focusedChild=null;if(this.restoreFocusOnClose&&this.__restoreFocusNode){this.__restoreFocusNode.focus()}this.__restoreFocusNode=null;var currentOverlay=this._manager.currentOverlay();if(currentOverlay&&this!==currentOverlay){currentOverlay._applyFocus()}}},_onCaptureClick:function(event){if(!this.noCancelOnOutsideClick){this.cancel(event)}},_onCaptureFocus:function(event){if(!this.withBackdrop){return}var path=Polymer.dom(event).path;if(path.indexOf(this)===-1){event.stopPropagation();this._applyFocus()}else{this._focusedChild=path[0]}},_onCaptureEsc:function(event){if(!this.noCancelOnEscKey){this.cancel(event)}},_onCaptureTab:function(event){if(!this.withBackdrop){return}var shift=event.shiftKey;var nodeToCheck=shift?this.__firstFocusableNode:this.__lastFocusableNode;var nodeToSet=shift?this.__lastFocusableNode:this.__firstFocusableNode;var shouldWrap=false;if(nodeToCheck===nodeToSet){shouldWrap=true}else{var focusedNode=this._manager.deepActiveElement;shouldWrap=focusedNode===nodeToCheck||focusedNode===this}if(shouldWrap){event.preventDefault();this._focusedChild=nodeToSet;this._applyFocus()}},_onIronResize:function(){if(this.opened&&!this.__isAnimating){this.__onNextAnimationFrame(this.refit)}},_onNodesChange:function(){if(this.opened&&!this.__isAnimating){this.notifyResize()}},__openedChanged:function(){if(this.opened){this._prepareRenderOpened();this._manager.addOverlay(this);this._applyFocus();this._renderOpened()}else{this._manager.removeOverlay(this);this._applyFocus();this._renderClosed()}},__onNextAnimationFrame:function(callback){if(this.__raf){window.cancelAnimationFrame(this.__raf)}var self=this;this.__raf=window.requestAnimationFrame(function nextAnimationFrame(){self.__raf=null;callback.call(self)})}};Polymer.IronOverlayBehavior=[Polymer.IronFitBehavior,Polymer.IronResizableBehavior,Polymer.IronOverlayBehaviorImpl]})();Polymer.NeonAnimatableBehavior={properties:{animationConfig:{type:Object},entryAnimation:{observer:"_entryAnimationChanged",type:String},exitAnimation:{observer:"_exitAnimationChanged",type:String}},_entryAnimationChanged:function(){this.animationConfig=this.animationConfig||{};this.animationConfig["entry"]=[{name:this.entryAnimation,node:this}]},_exitAnimationChanged:function(){this.animationConfig=this.animationConfig||{};this.animationConfig["exit"]=[{name:this.exitAnimation,node:this}]},_copyProperties:function(config1,config2){for(var property in config2){config1[property]=config2[property]}},_cloneConfig:function(config){var clone={isClone:true};this._copyProperties(clone,config);return clone},_getAnimationConfigRecursive:function(type,map,allConfigs){if(!this.animationConfig){return}if(this.animationConfig.value&&typeof this.animationConfig.value==="function"){this._warn(this._logf("playAnimation","Please put 'animationConfig' inside of your components 'properties' object instead of outside of it."));return}var thisConfig;if(type){thisConfig=this.animationConfig[type]}else{thisConfig=this.animationConfig}if(!Array.isArray(thisConfig)){thisConfig=[thisConfig]}if(thisConfig){for(var config,index=0;config=thisConfig[index];index++){if(config.animatable){config.animatable._getAnimationConfigRecursive(config.type||type,map,allConfigs)}else{if(config.id){var cachedConfig=map[config.id];if(cachedConfig){if(!cachedConfig.isClone){map[config.id]=this._cloneConfig(cachedConfig);cachedConfig=map[config.id]}this._copyProperties(cachedConfig,config)}else{map[config.id]=config}}else{allConfigs.push(config)}}}}},getAnimationConfig:function(type){var map={};var allConfigs=[];this._getAnimationConfigRecursive(type,map,allConfigs);for(var key in map){allConfigs.push(map[key])}return allConfigs}};Polymer.NeonAnimationRunnerBehaviorImpl={_configureAnimations:function(configs){var results=[];if(configs.length>0){for(var config,index=0;config=configs[index];index++){var neonAnimation=document.createElement(config.name);if(neonAnimation.isNeonAnimation){var result=null;try{result=neonAnimation.configure(config);if(typeof result.cancel!="function"){result=document.timeline.play(result)}}catch(e){result=null;console.warn("Couldnt play","(",config.name,").",e)}if(result){results.push({neonAnimation:neonAnimation,config:config,animation:result})}}else{console.warn(this.is+":",config.name,"not found!")}}}return results},_shouldComplete:function(activeEntries){var finished=true;for(var i=0;i<activeEntries.length;i++){if(activeEntries[i].animation.playState!="finished"){finished=false;break}}return finished},_complete:function(activeEntries){for(var i=0;i<activeEntries.length;i++){activeEntries[i].neonAnimation.complete(activeEntries[i].config)}for(var i=0;i<activeEntries.length;i++){activeEntries[i].animation.cancel()}},playAnimation:function(type,cookie){var configs=this.getAnimationConfig(type);if(!configs){return}this._active=this._active||{};if(this._active[type]){this._complete(this._active[type]);delete this._active[type]}var activeEntries=this._configureAnimations(configs);if(activeEntries.length==0){this.fire("neon-animation-finish",cookie,{bubbles:false});return}this._active[type]=activeEntries;for(var i=0;i<activeEntries.length;i++){activeEntries[i].animation.onfinish=function(){if(this._shouldComplete(activeEntries)){this._complete(activeEntries);delete this._active[type];this.fire("neon-animation-finish",cookie,{bubbles:false})}}.bind(this)}},cancelAnimation:function(){for(var k in this._animations){this._animations[k].cancel()}this._animations={}}};Polymer.NeonAnimationRunnerBehavior=[Polymer.NeonAnimatableBehavior,Polymer.NeonAnimationRunnerBehaviorImpl];Polymer.NeonAnimationBehavior={properties:{animationTiming:{type:Object,value:function(){return{duration:500,easing:"cubic-bezier(0.4, 0, 0.2, 1)",fill:"both"}}}},isNeonAnimation:true,timingFromConfig:function(config){if(config.timing){for(var property in config.timing){this.animationTiming[property]=config.timing[property]}}return this.animationTiming},setPrefixedProperty:function(node,property,value){var map={transform:["webkitTransform"],transformOrigin:["mozTransformOrigin","webkitTransformOrigin"]};var prefixes=map[property];for(var prefix,index=0;prefix=prefixes[index];index++){node.style[prefix]=value}node.style[property]=value},complete:function(){}};Polymer({is:"opaque-animation",behaviors:[Polymer.NeonAnimationBehavior],configure:function(config){var node=config.node;this._effect=new KeyframeEffect(node,[{opacity:"1"},{opacity:"1"}],this.timingFromConfig(config));node.style.opacity="0";return this._effect},complete:function(config){config.node.style.opacity=""}});(function(){"use strict";var LAST_TOUCH_POSITION={pageX:0,pageY:0};var ROOT_TARGET=null;var SCROLLABLE_NODES=[];Polymer.IronDropdownScrollManager={get currentLockingElement(){return this._lockingElements[this._lockingElements.length-1]},elementIsScrollLocked:function(element){var currentLockingElement=this.currentLockingElement;if(currentLockingElement===undefined)return false;var scrollLocked;if(this._hasCachedLockedElement(element)){return true}if(this._hasCachedUnlockedElement(element)){return false}scrollLocked=!!currentLockingElement&&currentLockingElement!==element&&!this._composedTreeContains(currentLockingElement,element);if(scrollLocked){this._lockedElementCache.push(element)}else{this._unlockedElementCache.push(element)}return scrollLocked},pushScrollLock:function(element){if(this._lockingElements.indexOf(element)>=0){return}if(this._lockingElements.length===0){this._lockScrollInteractions()}this._lockingElements.push(element);this._lockedElementCache=[];this._unlockedElementCache=[]},removeScrollLock:function(element){var index=this._lockingElements.indexOf(element);if(index===-1){return}this._lockingElements.splice(index,1);this._lockedElementCache=[];this._unlockedElementCache=[];if(this._lockingElements.length===0){this._unlockScrollInteractions()}},_lockingElements:[],_lockedElementCache:null,_unlockedElementCache:null,_hasCachedLockedElement:function(element){return this._lockedElementCache.indexOf(element)>-1},_hasCachedUnlockedElement:function(element){return this._unlockedElementCache.indexOf(element)>-1},_composedTreeContains:function(element,child){var contentElements;var distributedNodes;var contentIndex;var nodeIndex;if(element.contains(child)){return true}contentElements=Polymer.dom(element).querySelectorAll("content");for(contentIndex=0;contentIndex<contentElements.length;++contentIndex){distributedNodes=Polymer.dom(contentElements[contentIndex]).getDistributedNodes();for(nodeIndex=0;nodeIndex<distributedNodes.length;++nodeIndex){if(this._composedTreeContains(distributedNodes[nodeIndex],child)){return true}}}return false},_scrollInteractionHandler:function(event){if(event.cancelable&&this._shouldPreventScrolling(event)){event.preventDefault()}if(event.targetTouches){var touch=event.targetTouches[0];LAST_TOUCH_POSITION.pageX=touch.pageX;LAST_TOUCH_POSITION.pageY=touch.pageY}},_lockScrollInteractions:function(){this._boundScrollHandler=this._boundScrollHandler||this._scrollInteractionHandler.bind(this);document.addEventListener("wheel",this._boundScrollHandler,true);document.addEventListener("mousewheel",this._boundScrollHandler,true);document.addEventListener("DOMMouseScroll",this._boundScrollHandler,true);document.addEventListener("touchstart",this._boundScrollHandler,true);document.addEventListener("touchmove",this._boundScrollHandler,true)},_unlockScrollInteractions:function(){document.removeEventListener("wheel",this._boundScrollHandler,true);document.removeEventListener("mousewheel",this._boundScrollHandler,true);document.removeEventListener("DOMMouseScroll",this._boundScrollHandler,true);document.removeEventListener("touchstart",this._boundScrollHandler,true);document.removeEventListener("touchmove",this._boundScrollHandler,true)},_shouldPreventScrolling:function(event){var target=Polymer.dom(event).rootTarget;if(event.type!=="touchmove"&&ROOT_TARGET!==target){ROOT_TARGET=target;SCROLLABLE_NODES=this._getScrollableNodes(Polymer.dom(event).path)}if(!SCROLLABLE_NODES.length){return true}if(event.type==="touchstart"){return false}var info=this._getScrollInfo(event);return!this._getScrollingNode(SCROLLABLE_NODES,info.deltaX,info.deltaY)},_getScrollableNodes:function(nodes){var scrollables=[];var lockingIndex=nodes.indexOf(this.currentLockingElement);for(var i=0;i<=lockingIndex;i++){var node=nodes[i];if(node.nodeType===11){continue}var style=node.style;if(style.overflow!=="scroll"&&style.overflow!=="auto"){style=window.getComputedStyle(node)}if(style.overflow==="scroll"||style.overflow==="auto"){scrollables.push(node)}}return scrollables},_getScrollingNode:function(nodes,deltaX,deltaY){if(!deltaX&&!deltaY){return}var verticalScroll=Math.abs(deltaY)>=Math.abs(deltaX);for(var i=0;i<nodes.length;i++){var node=nodes[i];var canScroll=false;if(verticalScroll){canScroll=deltaY<0?node.scrollTop>0:node.scrollTop<node.scrollHeight-node.clientHeight}else{canScroll=deltaX<0?node.scrollLeft>0:node.scrollLeft<node.scrollWidth-node.clientWidth}if(canScroll){return node}}},_getScrollInfo:function(event){var info={deltaX:event.deltaX,deltaY:event.deltaY};if("deltaX"in event){}else if("wheelDeltaX"in event){info.deltaX=-event.wheelDeltaX;info.deltaY=-event.wheelDeltaY}else if("axis"in event){info.deltaX=event.axis===1?event.detail:0;info.deltaY=event.axis===2?event.detail:0}else if(event.targetTouches){var touch=event.targetTouches[0];info.deltaX=LAST_TOUCH_POSITION.pageX-touch.pageX;info.deltaY=LAST_TOUCH_POSITION.pageY-touch.pageY}return info}}})();(function(){"use strict";Polymer({is:"iron-dropdown",behaviors:[Polymer.IronControlState,Polymer.IronA11yKeysBehavior,Polymer.IronOverlayBehavior,Polymer.NeonAnimationRunnerBehavior],properties:{horizontalAlign:{type:String,value:"left",reflectToAttribute:true},verticalAlign:{type:String,value:"top",reflectToAttribute:true},openAnimationConfig:{type:Object},closeAnimationConfig:{type:Object},focusTarget:{type:Object},noAnimations:{type:Boolean,value:false},allowOutsideScroll:{type:Boolean,value:false},_boundOnCaptureScroll:{type:Function,value:function(){return this._onCaptureScroll.bind(this)}}},listeners:{"neon-animation-finish":"_onNeonAnimationFinish"},observers:["_updateOverlayPosition(positionTarget, verticalAlign, horizontalAlign, verticalOffset, horizontalOffset)"],get containedElement(){return Polymer.dom(this.$.content).getDistributedNodes()[0]},get _focusTarget(){return this.focusTarget||this.containedElement},ready:function(){this._scrollTop=0;this._scrollLeft=0;this._refitOnScrollRAF=null},attached:function(){if(!this.sizingTarget||this.sizingTarget===this){this.sizingTarget=this.containedElement}},detached:function(){this.cancelAnimation();document.removeEventListener("scroll",this._boundOnCaptureScroll);Polymer.IronDropdownScrollManager.removeScrollLock(this)},_openedChanged:function(){if(this.opened&&this.disabled){this.cancel()}else{this.cancelAnimation();this._updateAnimationConfig();this._saveScrollPosition();if(this.opened){document.addEventListener("scroll",this._boundOnCaptureScroll);!this.allowOutsideScroll&&Polymer.IronDropdownScrollManager.pushScrollLock(this)}else{document.removeEventListener("scroll",this._boundOnCaptureScroll);Polymer.IronDropdownScrollManager.removeScrollLock(this)}Polymer.IronOverlayBehaviorImpl._openedChanged.apply(this,arguments)}},_renderOpened:function(){if(!this.noAnimations&&this.animationConfig.open){this.$.contentWrapper.classList.add("animating");this.playAnimation("open")}else{Polymer.IronOverlayBehaviorImpl._renderOpened.apply(this,arguments)}},_renderClosed:function(){if(!this.noAnimations&&this.animationConfig.close){this.$.contentWrapper.classList.add("animating");this.playAnimation("close")}else{Polymer.IronOverlayBehaviorImpl._renderClosed.apply(this,arguments)}},_onNeonAnimationFinish:function(){this.$.contentWrapper.classList.remove("animating");if(this.opened){this._finishRenderOpened()}else{this._finishRenderClosed()}},_onCaptureScroll:function(){if(!this.allowOutsideScroll){this._restoreScrollPosition()}else{this._refitOnScrollRAF&&window.cancelAnimationFrame(this._refitOnScrollRAF);this._refitOnScrollRAF=window.requestAnimationFrame(this.refit.bind(this))}},_saveScrollPosition:function(){if(document.scrollingElement){this._scrollTop=document.scrollingElement.scrollTop;this._scrollLeft=document.scrollingElement.scrollLeft}else{this._scrollTop=Math.max(document.documentElement.scrollTop,document.body.scrollTop);this._scrollLeft=Math.max(document.documentElement.scrollLeft,document.body.scrollLeft)}},_restoreScrollPosition:function(){if(document.scrollingElement){document.scrollingElement.scrollTop=this._scrollTop;document.scrollingElement.scrollLeft=this._scrollLeft}else{document.documentElement.scrollTop=this._scrollTop;document.documentElement.scrollLeft=this._scrollLeft;document.body.scrollTop=this._scrollTop;document.body.scrollLeft=this._scrollLeft}},_updateAnimationConfig:function(){var animations=(this.openAnimationConfig||[]).concat(this.closeAnimationConfig||[]);for(var i=0;i<animations.length;i++){animations[i].node=this.containedElement}this.animationConfig={open:this.openAnimationConfig,close:this.closeAnimationConfig}},_updateOverlayPosition:function(){if(this.isAttached){this.notifyResize()}},_applyFocus:function(){var focusTarget=this.focusTarget||this.containedElement;if(focusTarget&&this.opened&&!this.noAutoFocus){focusTarget.focus()}else{Polymer.IronOverlayBehaviorImpl._applyFocus.apply(this,arguments)}}})})();Polymer({is:"fade-in-animation",behaviors:[Polymer.NeonAnimationBehavior],configure:function(config){var node=config.node;this._effect=new KeyframeEffect(node,[{opacity:"0"},{opacity:"1"}],this.timingFromConfig(config));return this._effect}});Polymer({is:"fade-out-animation",behaviors:[Polymer.NeonAnimationBehavior],configure:function(config){var node=config.node;this._effect=new KeyframeEffect(node,[{opacity:"1"},{opacity:"0"}],this.timingFromConfig(config));return this._effect}});Polymer({is:"paper-menu-grow-height-animation",behaviors:[Polymer.NeonAnimationBehavior],configure:function(config){var node=config.node;var rect=node.getBoundingClientRect();var height=rect.height;this._effect=new KeyframeEffect(node,[{height:height/2+"px"},{height:height+"px"}],this.timingFromConfig(config));return this._effect}});Polymer({is:"paper-menu-grow-width-animation",behaviors:[Polymer.NeonAnimationBehavior],configure:function(config){var node=config.node;var rect=node.getBoundingClientRect();var width=rect.width;this._effect=new KeyframeEffect(node,[{width:width/2+"px"},{width:width+"px"}],this.timingFromConfig(config));return this._effect}});Polymer({is:"paper-menu-shrink-width-animation",behaviors:[Polymer.NeonAnimationBehavior],configure:function(config){var node=config.node;var rect=node.getBoundingClientRect();var width=rect.width;this._effect=new KeyframeEffect(node,[{width:width+"px"},{width:width-width/20+"px"}],this.timingFromConfig(config));return this._effect}});Polymer({is:"paper-menu-shrink-height-animation",behaviors:[Polymer.NeonAnimationBehavior],configure:function(config){var node=config.node;var rect=node.getBoundingClientRect();var height=rect.height;var top=rect.top;this.setPrefixedProperty(node,"transformOrigin","0 0");this._effect=new KeyframeEffect(node,[{height:height+"px",transform:"translateY(0)"},{height:height/2+"px",transform:"translateY(-20px)"}],this.timingFromConfig(config));return this._effect}});(function(){"use strict";var config={ANIMATION_CUBIC_BEZIER:"cubic-bezier(.3,.95,.5,1)",MAX_ANIMATION_TIME_MS:400};var PaperMenuButton=Polymer({is:"paper-menu-button",behaviors:[Polymer.IronA11yKeysBehavior,Polymer.IronControlState],properties:{opened:{type:Boolean,value:false,notify:true,observer:"_openedChanged"},horizontalAlign:{type:String,value:"left",reflectToAttribute:true},verticalAlign:{type:String,value:"top",reflectToAttribute:true},dynamicAlign:{type:Boolean},horizontalOffset:{type:Number,value:0,notify:true},verticalOffset:{type:Number,value:0,notify:true},noOverlap:{type:Boolean},noAnimations:{type:Boolean,value:false},ignoreSelect:{type:Boolean,value:false},closeOnActivate:{type:Boolean,value:false},openAnimationConfig:{type:Object,value:function(){return[{name:"fade-in-animation",timing:{delay:100,duration:200}},{name:"paper-menu-grow-width-animation",timing:{delay:100,duration:150,easing:config.ANIMATION_CUBIC_BEZIER}},{name:"paper-menu-grow-height-animation",timing:{delay:100,duration:275,easing:config.ANIMATION_CUBIC_BEZIER}}]}},closeAnimationConfig:{type:Object,value:function(){return[{name:"fade-out-animation",timing:{duration:150}},{name:"paper-menu-shrink-width-animation",timing:{delay:100,duration:50,easing:config.ANIMATION_CUBIC_BEZIER}},{name:"paper-menu-shrink-height-animation",timing:{duration:200,easing:"ease-in"}}]}},allowOutsideScroll:{type:Boolean,value:false},restoreFocusOnClose:{type:Boolean,value:true},_dropdownContent:{type:Object}},hostAttributes:{role:"group","aria-haspopup":"true"},listeners:{"iron-activate":"_onIronActivate","iron-select":"_onIronSelect"},get contentElement(){return Polymer.dom(this.$.content).getDistributedNodes()[0]},toggle:function(){if(this.opened){this.close()}else{this.open()}},open:function(){if(this.disabled){return}this.$.dropdown.open()},close:function(){this.$.dropdown.close()},_onIronSelect:function(event){if(!this.ignoreSelect){this.close()}},_onIronActivate:function(event){if(this.closeOnActivate){this.close()}},_openedChanged:function(opened,oldOpened){if(opened){this._dropdownContent=this.contentElement;this.fire("paper-dropdown-open")}else if(oldOpened!=null){this.fire("paper-dropdown-close")}},_disabledChanged:function(disabled){Polymer.IronControlState._disabledChanged.apply(this,arguments);if(disabled&&this.opened){this.close()}},__onIronOverlayCanceled:function(event){var uiEvent=event.detail;var target=Polymer.dom(uiEvent).rootTarget;var trigger=this.$.trigger;var path=Polymer.dom(uiEvent).path;if(path.indexOf(trigger)>-1){event.preventDefault()}}});Object.keys(config).forEach(function(key){PaperMenuButton[key]=config[key]});Polymer.PaperMenuButton=PaperMenuButton})();Polymer.PaperInkyFocusBehaviorImpl={observers:["_focusedChanged(receivedFocusFromKeyboard)"],_focusedChanged:function(receivedFocusFromKeyboard){if(receivedFocusFromKeyboard){this.ensureRipple()}if(this.hasRipple()){this._ripple.holdDown=receivedFocusFromKeyboard}},_createRipple:function(){var ripple=Polymer.PaperRippleBehavior._createRipple();ripple.id="ink";ripple.setAttribute("center","");ripple.classList.add("circle");return ripple}};Polymer.PaperInkyFocusBehavior=[Polymer.IronButtonState,Polymer.IronControlState,Polymer.PaperRippleBehavior,Polymer.PaperInkyFocusBehaviorImpl];Polymer({is:"paper-icon-button",hostAttributes:{role:"button",tabindex:"0"},behaviors:[Polymer.PaperInkyFocusBehavior],properties:{src:{type:String},icon:{type:String},alt:{type:String,observer:"_altChanged"}},_altChanged:function(newValue,oldValue){var label=this.getAttribute("aria-label");if(!label||oldValue==label){this.setAttribute("aria-label",newValue)}}});Polymer({is:"iron-media-query",properties:{queryMatches:{type:Boolean,value:false,readOnly:true,notify:true},query:{type:String,observer:"queryChanged"},full:{type:Boolean,value:false},_boundMQHandler:{value:function(){return this.queryHandler.bind(this)}},_mq:{value:null}},attached:function(){this.style.display="none";this.queryChanged()},detached:function(){this._remove()},_add:function(){if(this._mq){this._mq.addListener(this._boundMQHandler)}},_remove:function(){if(this._mq){this._mq.removeListener(this._boundMQHandler)}this._mq=null},queryChanged:function(){this._remove();var query=this.query;if(!query){return}if(!this.full&&query[0]!=="("){query="("+query+")"}this._mq=window.matchMedia(query);this._add();this.queryHandler(this._mq)},queryHandler:function(mq){this._setQueryMatches(mq.matches)}});(function(){"use strict";Polymer.IronA11yAnnouncer=Polymer({is:"iron-a11y-announcer",properties:{mode:{type:String,value:"polite"},_text:{type:String,value:""}},created:function(){if(!Polymer.IronA11yAnnouncer.instance){Polymer.IronA11yAnnouncer.instance=this}document.body.addEventListener("iron-announce",this._onIronAnnounce.bind(this))},announce:function(text){this._text="";this.async(function(){this._text=text},100)},_onIronAnnounce:function(event){if(event.detail&&event.detail.text){this.announce(event.detail.text)}}});Polymer.IronA11yAnnouncer.instance=null;Polymer.IronA11yAnnouncer.requestAvailability=function(){if(!Polymer.IronA11yAnnouncer.instance){Polymer.IronA11yAnnouncer.instance=document.createElement("iron-a11y-announcer")}document.body.appendChild(Polymer.IronA11yAnnouncer.instance)}})();Polymer.IronValidatableBehaviorMeta=null;Polymer.IronValidatableBehavior={properties:{validator:{type:String},invalid:{notify:true,reflectToAttribute:true,type:Boolean,value:false},_validatorMeta:{type:Object},validatorType:{type:String,value:"validator"},_validator:{type:Object,computed:"__computeValidator(validator)"}},observers:["_invalidChanged(invalid)"],registered:function(){Polymer.IronValidatableBehaviorMeta=new Polymer.IronMeta({type:"validator"})},_invalidChanged:function(){if(this.invalid){this.setAttribute("aria-invalid","true")}else{this.removeAttribute("aria-invalid")}},hasValidator:function(){return this._validator!=null},validate:function(value){this.invalid=!this._getValidity(value);return!this.invalid},_getValidity:function(value){if(this.hasValidator()){return this._validator.validate(value)}return true},__computeValidator:function(){return Polymer.IronValidatableBehaviorMeta&&Polymer.IronValidatableBehaviorMeta.byKey(this.validator)}};Polymer({is:"iron-input","extends":"input",behaviors:[Polymer.IronValidatableBehavior],properties:{bindValue:{observer:"_bindValueChanged",type:String},preventInvalidInput:{type:Boolean},allowedPattern:{type:String,observer:"_allowedPatternChanged"},_previousValidInput:{type:String,value:""},_patternAlreadyChecked:{type:Boolean,value:false}},listeners:{input:"_onInput",keypress:"_onKeypress"},registered:function(){if(!this._canDispatchEventOnDisabled()){this._origDispatchEvent=this.dispatchEvent;this.dispatchEvent=this._dispatchEventFirefoxIE}},created:function(){Polymer.IronA11yAnnouncer.requestAvailability()},_canDispatchEventOnDisabled:function(){var input=document.createElement("input");var canDispatch=false;input.disabled=true;input.addEventListener("feature-check-dispatch-event",function(){canDispatch=true});try{input.dispatchEvent(new Event("feature-check-dispatch-event"))}catch(e){}return canDispatch},_dispatchEventFirefoxIE:function(){var disabled=this.disabled;this.disabled=false;this._origDispatchEvent.apply(this,arguments);this.disabled=disabled},get _patternRegExp(){var pattern;if(this.allowedPattern){pattern=new RegExp(this.allowedPattern)}else{switch(this.type){case"number":pattern=/[0-9.,e-]/;break}}return pattern},ready:function(){this.bindValue=this.value},_bindValueChanged:function(){if(this.value!==this.bindValue){this.value=!(this.bindValue||this.bindValue===0||this.bindValue===false)?"":this.bindValue}this.fire("bind-value-changed",{value:this.bindValue})},_allowedPatternChanged:function(){this.preventInvalidInput=this.allowedPattern?true:false},_onInput:function(){if(this.preventInvalidInput&&!this._patternAlreadyChecked){var valid=this._checkPatternValidity();if(!valid){this._announceInvalidCharacter("Invalid string of characters not entered.");this.value=this._previousValidInput}}this.bindValue=this.value;this._previousValidInput=this.value;this._patternAlreadyChecked=false},_isPrintable:function(event){var anyNonPrintable=event.keyCode==8||event.keyCode==9||event.keyCode==13||event.keyCode==27;var mozNonPrintable=event.keyCode==19||event.keyCode==20||event.keyCode==45||event.keyCode==46||event.keyCode==144||event.keyCode==145||event.keyCode>32&&event.keyCode<41||event.keyCode>111&&event.keyCode<124;return!anyNonPrintable&&!(event.charCode==0&&mozNonPrintable)},_onKeypress:function(event){if(!this.preventInvalidInput&&this.type!=="number"){return}var regexp=this._patternRegExp;if(!regexp){return}if(event.metaKey||event.ctrlKey||event.altKey)return;this._patternAlreadyChecked=true;var thisChar=String.fromCharCode(event.charCode);if(this._isPrintable(event)&&!regexp.test(thisChar)){event.preventDefault();this._announceInvalidCharacter("Invalid character "+thisChar+" not entered.")}},_checkPatternValidity:function(){var regexp=this._patternRegExp;if(!regexp){return true}for(var i=0;i<this.value.length;i++){if(!regexp.test(this.value[i])){return false}}return true},validate:function(){var valid=this.checkValidity();if(valid){if(this.required&&this.value===""){valid=false}else if(this.hasValidator()){valid=Polymer.IronValidatableBehavior.validate.call(this,this.value)}}this.invalid=!valid;this.fire("iron-input-validate");return valid},_announceInvalidCharacter:function(message){this.fire("iron-announce",{text:message})}});Polymer({is:"paper-input-container",properties:{noLabelFloat:{type:Boolean,value:false},alwaysFloatLabel:{type:Boolean,value:false},attrForValue:{type:String,value:"bind-value"},autoValidate:{type:Boolean,value:false},invalid:{observer:"_invalidChanged",type:Boolean,value:false},focused:{readOnly:true,type:Boolean,value:false,notify:true},_addons:{type:Array},_inputHasContent:{type:Boolean,value:false},_inputSelector:{type:String,value:"input,textarea,.paper-input-input"},_boundOnFocus:{type:Function,value:function(){return this._onFocus.bind(this)}},_boundOnBlur:{type:Function,value:function(){return this._onBlur.bind(this)}},_boundOnInput:{type:Function,value:function(){return this._onInput.bind(this);
 
 }},_boundValueChanged:{type:Function,value:function(){return this._onValueChanged.bind(this)}}},listeners:{"addon-attached":"_onAddonAttached","iron-input-validate":"_onIronInputValidate"},get _valueChangedEvent(){return this.attrForValue+"-changed"},get _propertyForValue(){return Polymer.CaseMap.dashToCamelCase(this.attrForValue)},get _inputElement(){return Polymer.dom(this).querySelector(this._inputSelector)},get _inputElementValue(){return this._inputElement[this._propertyForValue]||this._inputElement.value},ready:function(){if(!this._addons){this._addons=[]}this.addEventListener("focus",this._boundOnFocus,true);this.addEventListener("blur",this._boundOnBlur,true)},attached:function(){if(this.attrForValue){this._inputElement.addEventListener(this._valueChangedEvent,this._boundValueChanged)}else{this.addEventListener("input",this._onInput)}if(this._inputElementValue!=""){this._handleValueAndAutoValidate(this._inputElement)}else{this._handleValue(this._inputElement)}},_onAddonAttached:function(event){if(!this._addons){this._addons=[]}var target=event.target;if(this._addons.indexOf(target)===-1){this._addons.push(target);if(this.isAttached){this._handleValue(this._inputElement)}}},_onFocus:function(){this._setFocused(true)},_onBlur:function(){this._setFocused(false);this._handleValueAndAutoValidate(this._inputElement)},_onInput:function(event){this._handleValueAndAutoValidate(event.target)},_onValueChanged:function(event){this._handleValueAndAutoValidate(event.target)},_handleValue:function(inputElement){var value=this._inputElementValue;if(value||value===0||inputElement.type==="number"&&!inputElement.checkValidity()){this._inputHasContent=true}else{this._inputHasContent=false}this.updateAddons({inputElement:inputElement,value:value,invalid:this.invalid})},_handleValueAndAutoValidate:function(inputElement){if(this.autoValidate){var valid;if(inputElement.validate){valid=inputElement.validate(this._inputElementValue)}else{valid=inputElement.checkValidity()}this.invalid=!valid}this._handleValue(inputElement)},_onIronInputValidate:function(event){this.invalid=this._inputElement.invalid},_invalidChanged:function(){if(this._addons){this.updateAddons({invalid:this.invalid})}},updateAddons:function(state){for(var addon,index=0;addon=this._addons[index];index++){addon.update(state)}},_computeInputContentClass:function(noLabelFloat,alwaysFloatLabel,focused,invalid,_inputHasContent){var cls="input-content";if(!noLabelFloat){var label=this.querySelector("label");if(alwaysFloatLabel||_inputHasContent){cls+=" label-is-floating";this.$.labelAndInputContainer.style.position="static";if(invalid){cls+=" is-invalid"}else if(focused){cls+=" label-is-highlighted"}}else{if(label){this.$.labelAndInputContainer.style.position="relative"}}}else{if(_inputHasContent){cls+=" label-is-hidden"}}return cls},_computeUnderlineClass:function(focused,invalid){var cls="underline";if(invalid){cls+=" is-invalid"}else if(focused){cls+=" is-highlighted"}return cls},_computeAddOnContentClass:function(focused,invalid){var cls="add-on-content";if(invalid){cls+=" is-invalid"}else if(focused){cls+=" is-highlighted"}return cls}});Polymer.PaperSpinnerBehavior={listeners:{animationend:"__reset",webkitAnimationEnd:"__reset"},properties:{active:{type:Boolean,value:false,reflectToAttribute:true,observer:"__activeChanged"},alt:{type:String,value:"loading",observer:"__altChanged"},__coolingDown:{type:Boolean,value:false}},__computeContainerClasses:function(active,coolingDown){return[active||coolingDown?"active":"",coolingDown?"cooldown":""].join(" ")},__activeChanged:function(active,old){this.__setAriaHidden(!active);this.__coolingDown=!active&&old},__altChanged:function(alt){if(alt===this.getPropertyInfo("alt").value){this.alt=this.getAttribute("aria-label")||alt}else{this.__setAriaHidden(alt==="");this.setAttribute("aria-label",alt)}},__setAriaHidden:function(hidden){var attr="aria-hidden";if(hidden){this.setAttribute(attr,"true")}else{this.removeAttribute(attr)}},__reset:function(){this.active=false;this.__coolingDown=false}};Polymer({is:"paper-spinner-lite",behaviors:[Polymer.PaperSpinnerBehavior]});
 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-var CrSearchFieldBehavior={properties:{label:{type:String,value:""},clearLabel:{type:String,value:""},showingSearch:{type:Boolean,value:false,notify:true,observer:"showingSearchChanged_",reflectToAttribute:true},lastValue_:{type:String,value:""}},getSearchInput:function(){},getValue:function(){return this.getSearchInput().value},setValue:function(value){this.getSearchInput().bindValue=value;this.onValueChanged_(value)},showAndFocus:function(){this.showingSearch=true;this.focus_()},focus_:function(){this.getSearchInput().focus()},onSearchTermSearch:function(){this.onValueChanged_(this.getValue())},onValueChanged_:function(newValue){if(newValue==this.lastValue_)return;this.lastValue_=newValue;this.fire("search-changed",newValue)},onSearchTermKeydown:function(e){if(e.key=="Escape")this.showingSearch=false},showingSearchChanged_:function(){if(this.showingSearch){this.focus_();return}this.setValue("");this.getSearchInput().blur()}};
+var CrSearchFieldBehavior={properties:{label:{type:String,value:""},clearLabel:{type:String,value:""},showingSearch:{type:Boolean,value:false,notify:true,observer:"showingSearchChanged_",reflectToAttribute:true},lastValue_:{type:String,value:""}},getSearchInput:function(){},getValue:function(){return this.getSearchInput().value},setValue:function(value){this.getSearchInput().bindValue=value;this.onValueChanged_(value)},showAndFocus:function(){this.showingSearch=true;this.focus_()},focus_:function(){this.getSearchInput().focus()},onSearchTermSearch:function(){this.onValueChanged_(this.getValue())},onValueChanged_:function(newValue){if(newValue==this.lastValue_)return;this.lastValue_=newValue;this.fire("search-changed",newValue)},onSearchTermKeydown:function(e){if(e.key=="Escape")this.showingSearch=false},showingSearchChanged_:function(current,previous){if(previous==undefined)return;if(this.showingSearch){this.focus_();return}this.setValue("");this.getSearchInput().blur()}};
 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 Polymer({is:"cr-toolbar-search-field",behaviors:[CrSearchFieldBehavior],properties:{narrow:{type:Boolean,reflectToAttribute:true},label:String,clearLabel:String,spinnerActive:{type:Boolean,reflectToAttribute:true},hasSearchText_:Boolean,isSpinnerShown_:{type:Boolean,computed:"computeIsSpinnerShown_(spinnerActive, showingSearch)"}},listeners:{tap:"showSearch_","searchInput.bind-value-changed":"onBindValueChanged_"},getSearchInput:function(){return this.$.searchInput},isSearchFocused:function(){return this.$.searchTerm.focused},computeIconTabIndex_:function(narrow){return narrow?0:-1},computeIsSpinnerShown_:function(){return this.spinnerActive&&this.showingSearch},onInputBlur_:function(){if(!this.hasSearchText_)this.showingSearch=false},onBindValueChanged_:function(){var newValue=this.$.searchInput.bindValue;this.hasSearchText_=newValue!="";if(newValue!="")this.showingSearch=true},showSearch_:function(e){if(e.target!=this.$.clearSearch)this.showingSearch=true},clearSearch_:function(e){this.setValue("");this.getSearchInput().focus()}});
 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 Polymer({is:"cr-toolbar",properties:{pageName:String,searchPrompt:String,clearLabel:String,menuLabel:String,menuPromo:String,spinnerActive:Boolean,showMenu:{type:Boolean,value:false},showMenuPromo:{type:Boolean,value:false},closeMenuPromo:String,narrow_:{type:Boolean,reflectToAttribute:true},showingSearch_:{type:Boolean,reflectToAttribute:true}},observers:["possiblyShowMenuPromo_(showMenu, showMenuPromo, showingSearch_)"],getSearchField:function(){return this.$.search},onClosePromoTap_:function(){this.fire("cr-toolbar-menu-promo-close")},onMenuTap_:function(){this.fire("cr-toolbar-menu-tap")},possiblyShowMenuPromo_:function(){Polymer.RenderStatus.afterNextRender(this,function(){if(this.showMenu&&this.showMenuPromo&&!this.showingSearch_){this.$$("#menuPromo").animate({opacity:[0,.9]},{duration:500,fill:"forwards"});this.fire("cr-toolbar-menu-promo-shown")}}.bind(this))},titleIfNotShowMenuPromo_:function(title,showMenuPromo){return showMenuPromo?"":title}});
 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 cr.define("downloads",function(){var Toolbar=Polymer({is:"downloads-toolbar",properties:{downloadsShowing:{reflectToAttribute:true,type:Boolean,value:false,observer:"downloadsShowingChanged_"},spinnerActive:{type:Boolean,notify:true}},listeners:{"paper-dropdown-close":"onPaperDropdownClose_","paper-dropdown-open":"onPaperDropdownOpen_"},canUndo:function(){return!this.$.toolbar.getSearchField().isSearchFocused()},canClearAll:function(){return!this.$.toolbar.getSearchField().getValue()&&this.downloadsShowing},onFindCommand:function(){this.$.toolbar.getSearchField().showAndFocus()},closeMoreActions_:function(){this.$.more.close()},downloadsShowingChanged_:function(){this.updateClearAll_()},onClearAllTap_:function(){assert(this.canClearAll());downloads.ActionService.getInstance().clearAll()},onPaperDropdownClose_:function(){window.removeEventListener("resize",assert(this.boundClose_))},onItemBlur_:function(e){var menu=this.$$("paper-menu");if(menu.items.indexOf(e.relatedTarget)>=0)return;this.$.more.restoreFocusOnClose=false;this.closeMoreActions_();this.$.more.restoreFocusOnClose=true},onPaperDropdownOpen_:function(){this.boundClose_=this.boundClose_||this.closeMoreActions_.bind(this);window.addEventListener("resize",this.boundClose_)},onSearchChanged_:function(event){var actionService=downloads.ActionService.getInstance();if(actionService.search(event.detail))this.spinnerActive=actionService.isSearching();this.updateClearAll_()},onOpenDownloadsFolderTap_:function(){downloads.ActionService.getInstance().openDownloadsFolder()},updateClearAll_:function(){this.$$("paper-menu .clear-all").hidden=!this.canClearAll()}});return{Toolbar:Toolbar}});
 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 cr.define("downloads",function(){var Manager=Polymer({is:"downloads-manager",properties:{hasDownloads_:{observer:"hasDownloadsChanged_",type:Boolean},hasShadow_:{type:Boolean,value:false,reflectToAttribute:true},inSearchMode_:{type:Boolean,value:false},items_:{type:Array,value:function(){return[]}},spinnerActive_:{type:Boolean,notify:true}},hostAttributes:{loading:true},listeners:{"downloads-list.scroll":"onListScroll_","toolbar.search-changed":"onSearchChanged_"},observers:["itemsChanged_(items_.*)"],clearAll_:function(){this.set("items_",[])},hasDownloadsChanged_:function(){if(loadTimeData.getBoolean("allowDeletingHistory"))this.$.toolbar.downloadsShowing=this.hasDownloads_;if(this.hasDownloads_)this.$["downloads-list"].fire("iron-resize")},insertItems_:function(index,list){this.splice.apply(this,["items_",index,0].concat(list));this.updateHideDates_(index,index+list.length);this.removeAttribute("loading");this.spinnerActive_=false},itemsChanged_:function(){this.hasDownloads_=this.items_.length>0},noDownloadsText_:function(){return loadTimeData.getString(this.inSearchMode_?"noSearchResults":"noDownloads")},onCanExecute_:function(e){e=e;switch(e.command.id){case"undo-command":e.canExecute=this.$.toolbar.canUndo();break;case"clear-all-command":e.canExecute=this.$.toolbar.canClearAll();break;case"find-command":e.canExecute=true;break}},onCommand_:function(e){if(e.command.id=="clear-all-command")downloads.ActionService.getInstance().clearAll();else if(e.command.id=="undo-command")downloads.ActionService.getInstance().undo();else if(e.command.id=="find-command")this.$.toolbar.onFindCommand()},onListScroll_:function(){var list=this.$["downloads-list"];if(list.scrollHeight-list.scrollTop-list.offsetHeight<=100){downloads.ActionService.getInstance().loadMore()}this.hasShadow_=list.scrollTop>0},onLoad_:function(){cr.ui.decorate("command",cr.ui.Command);document.addEventListener("canExecute",this.onCanExecute_.bind(this));document.addEventListener("command",this.onCommand_.bind(this));downloads.ActionService.getInstance().loadMore()},onSearchChanged_:function(){this.inSearchMode_=downloads.ActionService.getInstance().isSearching()},removeItem_:function(index){this.splice("items_",index,1);this.updateHideDates_(index,index);this.onListScroll_()},updateHideDates_:function(start,end){for(var i=start;i<=end;++i){var current=this.items_[i];if(!current)continue;var prev=this.items_[i-1];var hideDate=!!prev&&prev.date_string==current.date_string;this.set("items_."+i+".hideDate",hideDate)}},updateItem_:function(index,data){this.set("items_."+index,data);this.updateHideDates_(index,index);var list=this.$["downloads-list"];list.updateSizeForItem(index)}});Manager.clearAll=function(){Manager.get().clearAll_()};Manager.get=function(){return queryRequiredElement("downloads-manager")};Manager.insertItems=function(index,list){Manager.get().insertItems_(index,list)};Manager.onLoad=function(){Manager.get().onLoad_()};Manager.removeItem=function(index){Manager.get().removeItem_(index)};Manager.updateItem=function(index,data){Manager.get().updateItem_(index,data)};return{Manager:Manager}});
 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 window.addEventListener("load",function(){downloads.Manager.onLoad();document.fonts.load("bold 12px Roboto")});