/* Riot v2.5.0, @license MIT */ !function(e,t){"use strict";function n(e,t,n){var r={};return r[e.key]=t,e.pos&&(r[e.pos]=n),r}function r(e,t){for(var n,r=t.length,o=e.length;r>o;)n=t[--r],t.splice(r,1),n.unmount()}function o(e,t){Object.keys(e.tags).forEach(function(n){var r=e.tags[n];A(r)?g(r,function(e){E(e,n,t)}):E(r,n,t)})}function i(e,t,n){var r,o=e._root;for(e._virts=[];o;)r=o.nextSibling,n?t.insertBefore(o,n._root):t.appendChild(o),e._virts.push(o),o=r}function a(e,t,n,r){for(var o,i=e._root,a=0;a0,o.ns=r}),e)},enumerable:!1,writable:!1,configurable:!1},off:{value:function(r,o){return"*"!=r||o?t(r,function(e,t,r){if(o||r)for(var i,a=n[e],u=0;i=a&&a[u];++u)(i==o||r&&i.ns==r)&&a.splice(u--,1);else delete n[e]}):n={},e},enumerable:!1,writable:!1,configurable:!1},one:{value:function(t,n){function r(){e.off(t,r),n.apply(e,arguments)}return e.on(t,r)},enumerable:!1,writable:!1,configurable:!1},trigger:{value:function(o){for(var i,a=arguments.length-1,u=new Array(a),s=0;sa-zA-Z0-9'",;\\]/.test(e))throw new Error('Unsupported brackets "'+e+'"');return t=t.concat(e.replace(/(?=[[\]()*+?.^$|])/g,"\\").split(" ")),t[4]=n(t[1].length>1?/{[\S\s]*?}/:m[4],t),t[5]=n(e.length>3?/\\({|})/g:m[5],t),t[6]=n(m[6],t),t[7]=RegExp("\\\\("+t[3]+")|([[({])|("+t[3]+")|"+p,c),t[8]=e,t}function o(e){return e instanceof RegExp?u(e):v[e]}function i(e){(e||(e=g))!==v[8]&&(v=r(e),u=e===g?t:n,v[9]=u(m[9])),h=e}function a(e){var t;e=e||{},t=e.brackets,Object.defineProperty(e,"brackets",{set:i,get:function(){return h},enumerable:!0}),s=e,i(t)}var u,s,c="g",f=/\/\*[^*]*\*+(?:[^*\/][^*]*\*+)*\//g,l=/"[^"\\]*(?:\\[\S\s][^"\\]*)*"|'[^'\\]*(?:\\[\S\s][^'\\]*)*'/g,p=l.source+"|"+/(?:\breturn\s+|(?:[$\w\)\]]|\+\+|--)\s*(\/)(?![*\/]))/.source+"|"+/\/(?=[^*\/])[^[\/\\]*(?:(?:\[(?:\\.|[^\]\\]*)*\]|\\.)[^[\/\\]*)*?(\/)[gim]*/.source,d={"(":RegExp("([()])|"+p,c),"[":RegExp("([[\\]])|"+p,c),"{":RegExp("([{}])|"+p,c)},g="{ }",m=["{","}","{","}",/{[^}]*}/,/\\([{}])/g,/\\({)|{/g,RegExp("\\\\(})|([[({])|(})|"+p,c),g,/^\s*{\^?\s*([$\w]+)(?:\s*,\s*(\S+))?\s+in\s+(\S.*)\s*}/,/(^|[^\\]){=[\S\s]*?}/],h=e,v=[];return o.split=function(e,t,n){function r(e){t||a?c.push(e&&e.replace(n[5],"$1")):c.push(e)}function o(e,t,n){var r,o=d[t];for(o.lastIndex=n,n=1;(r=o.exec(e))&&(!r[1]||(r[1]===t?++n:--n)););return n?e.length:o.lastIndex}n||(n=v);var i,a,u,s,c=[],f=n[6];for(a=u=f.lastIndex=0;i=f.exec(e);){if(s=i.index,a){if(i[2]){f.lastIndex=o(e,i[2],f.lastIndex);continue}if(!i[3])continue}i[1]||(r(e.slice(u,s)),u=f.lastIndex,f=n[6+(a^=1)],f.lastIndex=u)}return e&&u2||r[0]){var o,a,u=[];for(o=a=0;o2&&!t?s+(n.push(e)-1)+"~":e}).replace(/\s+/g," ").trim().replace(/\ ?([[\({},?\.:])\ ?/g,"$1")){for(var o,i=[],u=0;e&&(o=e.match(c))&&!o.index;){var l,p,g=/,|([[{(])|$/g;for(e=RegExp.rightContext,l=o[2]?n[o[2]].slice(1,-1).trim().replace(/\s+/g," "):o[1];p=(o=g.exec(e))[1];)r(p,g);p=e.slice(0,o.index),e=RegExp.rightContext,i[u++]=a(p,1,l)}e=u?u>1?"["+i.join(",")+'].join(" ").trim()':i[0]:a(e,t)}return e}function a(e,t,n){var r;return e=e.replace(m,function(e,t,n,o,i){return n&&(o=r?0:o+e.length,"this"!==n&&"global"!==n&&"window"!==n?(e=t+'("'+n+g+n,o&&(r="."===(i=i[o])||"("===i||"["===i)):o&&(r=!h.test(i.slice(o)))),e}),r&&(e="try{return "+e+"}catch(e){E(e,this)}"),n?e=(r?"function(){"+e+"}.call(this)":"("+e+")")+'?"'+n+'":""':t&&(e="function(v){"+(r?e.replace("return ","v="):"v=("+e+")")+';return v||v===0?v:""}.call(this)'),e}var u={};t.haveRaw=le.hasRaw,t.hasExpr=le.hasExpr,t.loopKeys=le.loopKeys,t.errorHandler=null;var s="⁗",c=/^(?:(-?[_A-Za-z\xA0-\xFF][-\w\xA0-\xFF]*)|\u2057(\d+)~):/,f=RegExp(le.S_QBLOCKS,"g"),l=/\u2057/g,p=/\u2057(\d+)~/g,d={"(":/[()]/g,"[":/[[\]]/g,"{":/[{}]/g},g='"in this?this:'+("object"!=typeof e?"global":"window")+").",m=/[,{][$\w]+:|(^ *|[^$\w\.])(?!(?:typeof|true|false|null|undefined|in|instanceof|is(?:Finite|NaN)|void|NaN|new|Date|RegExp|Math)(?![$\w]))([$_A-Za-z][$\w]*)/g,h=/^(?=(\.[$\w]+))\1(?:[^.[(]|$)/;return t.parse=function(e){return e},t.version=le.version="v2.4.0",t}(),de=function e(){function e(e,r){var o=e&&e.match(/^\s*<([-\w]+)/),i=o&&o[1].toLowerCase(),a=H("div",x(i));return e=n(e,r),s.test(i)?a=t(a,e,i):v(a,e),a.stub=!0,a}function t(e,t,n){var r="o"===n[0],o=r?"select>":"table>";if(e.innerHTML="<"+o+t.trim()+"|>([\S\s]*?)<\/yield\s*>|>)/gi,i=/]*)['"]\s*>([\S\s]*?)<\/yield\s*>/gi,a=/|>([\S\s]*?)<\/yield\s*>)/gi,u={tr:"tbody",th:"tr",td:"tr",col:"colgroup"},s=ce&&ce<10?ae:/^(?:t(?:body|head|foot|[rhd])|caption|col(?:group)?)$/;return e}(),ge=function(t){if(!e)return{add:function(){},inject:function(){}};var n=function(){var e=H("style");C(e,"type","text/css");var t=q("style[type=riot]");return t?(t.id&&(e.id=t.id),t.parentNode.replaceChild(e,t)):document.getElementsByTagName("head")[0].appendChild(e),e}(),r=n.styleSheet,o="";return Object.defineProperty(t,"styleNode",{value:n,writable:!0}),{add:function(e){o+=e},inject:function(){o&&(r?r.cssText+=o:n.innerHTML+=o,o="")}}}(V),me=function(e){var t=e.requestAnimationFrame||e.mozRequestAnimationFrame||e.webkitRequestAnimationFrame;if(!t||/iP(ad|hone|od).*OS 6/.test(e.navigator.userAgent)){var n=0;t=function(e){var t=Date.now(),r=Math.max(16-(t-n),0);setTimeout(function(){e(n=t+r)},r)}}return t}(e||{});V.util={brackets:le,tmpl:pe},V.mixin=function(){var e={},t=e[J]={},n=0;return function(r,o,i){if(y(r))return void V.mixin("__unnamed_"+n++,r,!0);var a=i?t:e;if(!o){if(typeof a[r]===oe)throw new Error("Unregistered mixin: "+r);return a[r]}m(o)?(T(o.prototype,a[r]||{}),a[r]=o):a[r]=T(a[r]||{},o)}}(),V.tag=function(e,t,n,r,o){return m(r)&&(o=r,/^[\w\-]+\s?=/.test(n)?(r=n,n=""):r=""),n&&(m(n)?o=n:ge.add(n)),e=e.toLowerCase(),X[e]={name:e,tmpl:t,attrs:r,fn:o},e},V.tag2=function(e,t,n,r,o){return n&&ge.add(n),X[e]={name:e,tmpl:t,attrs:r,fn:o},e},V.mount=function(e,t,n){function r(e){var t="";return g(e,function(e){/[^-\w]/.test(e)||(e=e.trim().toLowerCase(),t+=",["+te+'="'+e+'"],['+ee+'="'+e+'"]')}),t}function o(){var e=Object.keys(X);return e+r(e)}function i(e){if(e.tagName){var r=_(e,te)||_(e,ee);t&&r!==t&&(r=t,C(e,te,t),C(e,ee,t));var o=G(e,r||e.tagName.toLowerCase(),n);o&&s.push(o)}else e.length&&g(e,i)}var a,u,s=[];if(ge.inject(),y(t)&&(n=t,t=0),typeof e===ne?("*"===e?e=u=o():e+=r(e.split(/, */)),a=e?B(e):[]):a=e,"*"===t){if(t=u||o(),a.tagName)a=B(t,a);else{var c=[];g(a,function(e){c.push(B(t,e))}),a=c}t=0}return i(a),s},V.update=function(){return g(W,function(e){e.update()})},V.vdom=W,V.Tag=f;var he=function(e){function t(t){var n=e[t];if(n)return n;throw new Error('Parser "'+t+'" not loaded.')}function n(e){var t=e.split(".");if(2!==t.length)throw new Error("Bad format for parsers._req");var n=i[t[0]][t[1]];if(n)return n;throw new Error('Parser "'+e+'" not found.')}function r(e,t){if(t)for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e}function o(e,n,o,i){return o=r({pretty:!0,filename:i,doctype:"html"},o),t(e).render(n,o)}var i={};return i.html={jade:function(e,t,n){return console.log('DEPRECATION WARNING: jade was renamed "pug" - The jade parser will be removed in riot@3.0.0!'),o("jade",e,t,n)},pug:function(e,t,n){return o("pug",e,t,n)}},i.css={less:function(e,n,o,i){var a;return o=r({sync:!0,syncImport:!0,filename:i},o),t("less").render(n,o,function(e,t){if(e)throw e;a=t.css}),a}},i.js={es6:function(e,n){return n=r({blacklist:["useStrict","strict","react"],sourceMaps:!1,comments:!1},n),t("babel").transform(e,n).code},babel:function(e,n,o){return t("babel").transform(e,r({filename:o},n)).code},coffee:function(e,n){return t("CoffeeScript").compile(e,r({bare:!0},n))},livescript:function(e,n){return t("livescript").compile(e,r({bare:!0,header:!1},n))},typescript:function(e,n){return t("typescript")(e,n)},none:function(e){return e}},i.js.javascript=i.js.none,i.js.coffeescript=i.js.coffee,i._req=n,i.utils={extend:r},i}(e||global);V.parsers=he;var ve=function(){function e(e){var t,n=j;for(~e.indexOf("\r")&&(e=e.replace(/\r\n?/g,"\n")),n.lastIndex=0;t=n.exec(e);)"<"===t[0][0]&&(e=RegExp.leftContext+RegExp.rightContext,n.lastIndex=t[3]+1);return e}function t(e,t){var n,r,o,i=[];for(L.lastIndex=0,e=e.replace(/\s+/g," ");n=L.exec(e);){var a=n[1].toLowerCase(),u=n[2];u?(u[0]!==z&&(u=z+(u[0]===K?u.slice(1,-1):u)+z),"type"===a&&k.test(u)?r=u:(H.test(u)&&("value"===a?o=1:R.test(a)?a="__"+a:~A.indexOf(a)&&(a="riot-"+a)),i.push(a+"="+u))):i.push(a)}return r&&(o&&(r=z+t._bp[0]+K+r.slice(1,-1)+K+t._bp[1]+z),i.push("type="+r)),i.join(" ")}function n(e,t,n){var r=n._bp;if(e&&r[4].test(e)){for(var o,i=t.expr&&(t.parser||t.type)?c:0,a=le.split(e,0,r),u=1;u"}),!o.whitespace){var a=[];/]/.test(e)&&(e=e.replace($,function(e){return a.push(e),""})),e=e.trim().replace(/\s+/g," "),a.length&&(e=e.replace(/\u0002/g,function(){return a.shift()}))}return o.compact&&(e=e.replace(T,"><$1")),r(e,i).replace(P,"")}function u(t,n,r){return Array.isArray(n)?(r=n,n={}):(r||(r=[]),n||(n={})),r._bp=le.array(n.brackets),a(e(t),n,r)}function s(e){function t(e,t,n){for(t.lastIndex=0;n=t.exec(e);)"/"!==n[0][0]||n[1]||n[2]||(e=s.leftContext+" "+s.rightContext,t.lastIndex=n[3]+1);return e}function n(e,t){var n,r=1;for(t.lastIndex=0;r&&(n=t.exec(e));)"{"===n[0]?++r:"}"===n[0]&&--r;return r?e.length:t.lastIndex}var r,o,i,a,u=[],s=RegExp;for(~e.indexOf("/")&&(e=t(e,Q));r=e.match(Z);)u.push(s.leftContext),e=s.rightContext,i=n(e,G),a=r[1],o=!/^(?:if|while|for|switch|catch|function)$/.test(a),a=o?r[0].replace(a,"this."+a+" = function"):r[0],u.push(a,e.slice(0,i)),e=e.slice(i),o&&!/^\s*.\s*bind\b/.test(e)&&u.push(".bind(this)");return u.length?u.join("")+e:e}function c(e,t,n,r,o){if(!/\S/.test(e))return"";n||(n=t.type);var i=t.parser||n&&he._req("js."+n,!0)||s;return i(e,r,o).replace(/\r\n?/g,"\n").replace(P,"")}function f(e,t,n,r){return"string"==typeof t&&(r=n,n=t,t={}),n&&"object"==typeof n&&(r=n,n=""),r||(r={}),c(e,t||{},n,r.parserOptions,r.url)}function l(e,t){var n=":scope";return t.replace(W,function(t,r,o){return o?(o=o.replace(/[^,]+/g,function(t){var r=t.trim();return r&&"from"!==r&&"to"!==r&&"%"!==r.slice(-1)?r=r.indexOf(n)<0?e+" "+r+',[riot-tag="'+e+'"] '+r+',[data-is="'+e+'"] '+r:r.replace(n,e)+","+r.replace(n,'[riot-tag="'+e+'"]')+","+r.replace(n,'[data-is="'+e+'"]'):t}),r?r+" "+o:o):t})}function p(e,t,n,r){var o=(r||(r={})).scoped;if(n)if("scoped-css"===n)o=!0;else if("css"!==n){var i=he._req("css."+n,!0);e=i(t,e,r.parserOpts||{},r.url)}if(e=e.replace(le.R_MLCOMMS,"").replace(/\s+/g," ").trim(),o){if(!t)throw new Error("Can not parse scoped CSS without a tagName");e=l(t,e)}return e}function d(e,t,n){return t&&"object"==typeof t?(n=t,t=""):n||(n={}),p(e,n.tagName,t,n)}function g(e,t){return e?(e=K+e.replace(/\\/g,"\\\\").replace(/'/g,"\\'")+K,t&&~e.indexOf("\n")?e.replace(/\n/g,"\\n"):e):"''"}function m(e,t,n,r,o,i,a){var u=a.debug?",\n ":", ",s="});";return o&&"\n"!==o.slice(-1)&&(s="\n"+s),i+"riot.tag2('"+e+K+u+g(t,1)+u+g(n)+u+g(r)+", function(opts) {\n"+o+s}function h(e){if(/<[-\w]/.test(e))for(var t,n=e.lastIndexOf("<"),r=e.length;~n;){if(t=e.slice(n,r).match(Y))return n+=t.index+t[0].length,[e.slice(0,n),e.slice(n)];r=n,n=e.lastIndexOf("<",n-1)}return["",e]}function v(e){if(e){var t=e.match(X);if(t=t&&(t[2]||t[3]))return t.replace("text/","")}return""}function x(e,t){if(e){var n=e.match(RegExp("\\s"+t+J,"i"));if(n=n&&n[1])return/^['"]/.test(n)?n.slice(1,-1):n}return""}function y(e){return e.replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/"/g,'"').replace(/'/g,"'")}function b(e){var t=y(x(e,"options"));return t?JSON.parse(t):null}function w(e,t,n,r){var o=v(n),i=x(n,"src"),a=O({},t.parserOptions.js);return!i&&c(e,t,o,O(a,b(n)),r)}function _(e,t,n,r,o){var i=O({},t.parserOptions.style),a={parserOpts:O(i,b(n)),scoped:n&&/\sscoped(\s|=|$)/i.test(n),url:r};return p(e,o,v(n)||t.style,a)}function C(e,t,n,r){var o=he._req("html."+n,!0);return o(e,r,t)}function S(u,s,f){var l,p=[],d={template:{},js:{},style:{}};s||(s={}),s.parserOptions=O(d,s.parserOptions||{}),l=s.exclude?function(e){return s.exclude.indexOf(e)<0}:function(){return 1},f||(f="");var g=le.array(s.brackets);return s.template&&(u=C(u,f,s.template,s.parserOptions.template)),u=e(u).replace(ee,function(e,u,d,v,x,y){var b="",C="",S="",O="",E=[];if(E._bp=g,d=d.toLowerCase(),v=v&&l("attribs")?r(t(n(v,s,E),E),E):"",(x||(x=y))&&/\S/.test(x))if(y)l("html")&&(S=a(y,s,E));else{x=x.replace(RegExp("^"+u,"gm"),""),x=x.replace(ne,function(e,t,n){return l("css")&&(C+=(C?" ":"")+_(n,s,t,f,d)),""}),x=x.replace(te,function(e,t,n){if(l("js")){var r=w(n,s,t,f);r&&(b+=(b?"\n":"")+r)}return""});var N=h(x.replace(P,""));l("html")&&(S=a(N[0],s,E)),l("js")&&(x=c(N[1],s,null,null,f),O=o(b),b=i(b),x&&(b+=(b?"\n":"")+x))}return b=/\S/.test(b)?b.replace(/\n{3,}/g,"\n\n"):"",s.entities?(p.push({tagName:d,html:S,css:C,attribs:v,js:b}),""):m(d,S,C,v,b,O,s)}),s.entities?p:u}var O=he.utils.extend,E=/"[^"\n\\]*(?:\\[\S\s][^"\n\\]*)*"|'[^'\n\\]*(?:\\[\S\s][^'\n\\]*)*'/.source,N=le.R_STRINGS.source,L=/ *([-\w:\xA0-\xFF]+) ?(?:= ?('[^']*'|"[^"]*"|\S+))?/g,j=RegExp(//.source+"|"+E,"g"),M=/<(-?[A-Za-z][-\w\xA0-\xFF]*)(?:\s+([^"'\/>]*(?:(?:"[^"]*"|'[^']*'|\/[^>])[^'"\/>]*)*)|\s*)(\/?)>/g,T=/>[ \t]+<(-?[A-Za-z]|\/[-A-Za-z])/g,R=RegExp("^(?:disabled|checked|readonly|required|allowfullscreen|auto(?:focus|play)|compact|controls|default|formnovalidate|hidden|ismap|itemscope|loop|multiple|muted|no(?:resize|shade|validate|wrap)?|open|reversed|seamless|selected|sortable|truespeed|typemustmatch)$"),A=["style","src","d"],I=/^(?:input|img|br|wbr|hr|area|base|col|embed|keygen|link|meta|param|source|track)$/,$=/]*|"[^"]*")*)?>([\S\s]+?)<\/pre\s*>/gi,k=/^"(?:number|date(?:time)?|time|month|email|color)\b/i,F=/^(?: )*(?:import)(?:(?:.*))*$/gm,P=/[ \t]+$/gm,H=U(/@#\d/,"x01"),B=U(/@#(\d+)/g,"x01"),q="#",D="⁗",z='"',K="'",Z=/^[ \t]*([$_A-Za-z][$\w]*)\s*\([^()]*\)\s*{/m,G=RegExp("[{}]|"+le.S_QBLOCKS,"g"),Q=RegExp(le.R_MLCOMMS.source+"|//[^\r\n]*|"+le.S_QBLOCKS,"g"),W=RegExp("([{}]|^)[ ;]*([^@ ;{}][^{}]*)(?={)|"+E,"g"),X=/\stype\s*=\s*(?:(['"])(.+?)\1|(\S+))/i,J="\\s*=\\s*("+N+"|{[^}]+}|\\S+)",Y=/\/>\n|^<(?:\/?-?[A-Za-z][-\w\xA0-\xFF]*\s*|-?[A-Za-z][-\w\xA0-\xFF]*\s+[-\w:\xA0-\xFF][\S\s]*?)>\n/,ee=RegExp(/^([ \t]*)<(-?[A-Za-z][-\w\xA0-\xFF]*)(?:\s+([^'"\/>]+(?:(?:@|\/[^>])[^'"\/>]*)*)|\s*)?(?:\/>|>[ \t]*\n?([\S\s]*)^\1<\/\2\s*>|>(.*)<\/\2\s*>)/.source.replace("@",N),"gim"),te=/]*)?>\n?([\S\s]*?)<\/script\s*>/gi,ne=/]*)?>\n?([\S\s]*?)<\/style\s*>/gi;return V.util.compiler={compile:S,html:u,css:d,js:f,version:"v2.5.2"},S}();V.compile=function(){function e(e,t,n){var r=new XMLHttpRequest;r.onreadystatechange=function(){4===r.readyState&&(200===r.status||!r.status&&r.responseText.length)&&t(r.responseText,n,e)},r.open("GET",e,!0),r.send("")}function n(e,t){if(typeof e===ne){var n=H("script"),r=document.documentElement;t&&(e+="\n//# sourceURL="+t+".js"),n.text=e,r.appendChild(n),r.removeChild(n)}}function r(t,r){function a(){o.trigger("ready"),i=!0,t&&t()}function u(e,t,r){var o=ve(e,t,r);n(o,r),--c||a()}var s=B('script[type="riot/tag"]'),c=s.length;if(c)for(var f=0;f>>0,i=arguments[1],a=0;n>a;a++)if(t=e[a],r.call(i,t,a,e))return t;return void 0});var r=[];var t={hash:"#!",add:function u(n){if(!n||!n.name){throw"Please specify a state name";return}var i=e(n);if(i)i=n;else{if(n.url&&n.url[0]=="/")n.url=n.url.substr(1);r.push(n)}t.trigger("add",i);return this},remove:function f(e){var n=undefined;r=r.filter(function(r){if(r.name!=e)return r;else n=r});t.trigger("remove",n);return this},go:function s(r,n,i){if(!t.active||!r)return;var o=e(r);if(!o){throw"State '"+r+"' has not been configured";return}if(n)o.params=n;var u=r.split(".");u=u.map(function(r,t){if(t>0){return u.slice(0,t).join(".")+"."+r}else{return r}});u.forEach(function(r,t){if(t from the passed element. * * @param {Element} el to search from * @return {HTMLDialogElement} dialog found */ function findNearestDialog(el) { while (el) { if (el.nodeName.toUpperCase() == 'DIALOG') { return /** @type {HTMLDialogElement} */ (el); } el = el.parentElement; } return null; } /** * Blur the specified element, as long as it's not the HTML body element. * This works around an IE9/10 bug - blurring the body causes Windows to * blur the whole application. * * @param {Element} el to blur */ function safeBlur(el) { if (el && el.blur && el != document.body) { el.blur(); } } /** * @param {!NodeList} nodeList to search * @param {Node} node to find * @return {boolean} whether node is inside nodeList */ function inNodeList(nodeList, node) { for (var i = 0; i < nodeList.length; ++i) { if (nodeList[i] == node) { return true; } } return false; } /** * @param {!HTMLDialogElement} dialog to upgrade * @constructor */ function dialogPolyfillInfo(dialog) { this.dialog_ = dialog; this.replacedStyleTop_ = false; this.openAsModal_ = false; // Set a11y role. Browsers that support dialog implicitly know this already. if (!dialog.hasAttribute('role')) { dialog.setAttribute('role', 'dialog'); } dialog.show = this.show.bind(this); dialog.showModal = this.showModal.bind(this); dialog.close = this.close.bind(this); if (!('returnValue' in dialog)) { dialog.returnValue = ''; } this.maybeHideModal = this.maybeHideModal.bind(this); if ('MutationObserver' in window) { // IE11+, most other browsers. var mo = new MutationObserver(this.maybeHideModal); mo.observe(dialog, { attributes: true, attributeFilter: ['open'] }); } else { dialog.addEventListener('DOMAttrModified', this.maybeHideModal); } // Note that the DOM is observed inside DialogManager while any dialog // is being displayed as a modal, to catch modal removal from the DOM. Object.defineProperty(dialog, 'open', { set: this.setOpen.bind(this), get: dialog.hasAttribute.bind(dialog, 'open') }); this.backdrop_ = document.createElement('div'); this.backdrop_.className = 'backdrop'; this.backdropClick_ = this.backdropClick_.bind(this); } dialogPolyfillInfo.prototype = { get dialog() { return this.dialog_; }, /** * Maybe remove this dialog from the modal top layer. This is called when * a modal dialog may no longer be tenable, e.g., when the dialog is no * longer open or is no longer part of the DOM. */ maybeHideModal: function() { if (!this.openAsModal_) { return; } if (this.dialog_.hasAttribute('open') && document.body.contains(this.dialog_)) { return; } this.openAsModal_ = false; this.dialog_.style.zIndex = ''; // This won't match the native