//     keymaster.js
//     (c) 2011 Thomas Fuchs
//     keymaster.js may be freely distributed under the MIT license.
(function(a){function m(a,b,c){a.addEventListener?a.addEventListener(b,c,!1):a.attachEvent&&a.attachEvent("on"+b,function(){c(window.event)})}function l(a){e=a||"all"}function k(a,b,d){var e,h,i,j;d===undefined&&(d=b,b="all"),a=a.replace(/\s/g,""),e=a.split(","),e[e.length-1]==""&&(e[e.length-2]+=",");for(i=0;i<e.length;i++){h=[],a=e[i].split("+");if(a.length>1){h=a.slice(0,a.length-1);for(j=0;j<h.length;j++)h[j]=f[h[j]];a=[a[a.length-1]]}a=a[0],a=g[a]||a.toUpperCase().charCodeAt(0),a in c||(c[a]=[]),c[a].push({shortcut:e[i],scope:b,method:d,key:e[i],mods:h})}}function j(a){var b=a.keyCode,c;if(b==93||b==224)b=91;if(b in d){d[b]=!1;for(c in f)f[c]==b&&(k[c]=!1)}}function i(a){var b,g,i,j,l,m;g=(a.target||a.srcElement).tagName,b=a.keyCode;if(b==93||b==224)b=91;if(b in d){d[b]=!0;for(j in f)f[j]==b&&(k[j]=!0)}else{if(g=="INPUT"||g=="SELECT"||g=="TEXTAREA")return;if(!(b in c))return;for(l=0;l<c[b].length;l++){i=c[b][l];if(i.scope==e||i.scope=="all"){m=i.mods.length>0;for(j in d)if(!d[j]&&h(i.mods,+j)>-1||d[j]&&h(i.mods,+j)==-1)m=!1;(i.mods.length==0&&!d[16]&&!d[18]&&!d[17]&&!d[91]||m)&&i.method(a,i)===!1&&(a.preventDefault?a.preventDefault():a.returnValue=!1,a.stopPropagation&&a.stopPropagation(),a.cancelBubble&&(a.cancelBubble=!0))}}}}function h(a,b){var c=a.length;while(c--)if(a[c]===b)return c;return-1}var b,c={},d={16:!1,18:!1,17:!1,91:!1},e="all",f={"⇧":16,shift:16,"⌥":18,alt:18,option:18,"⌃":17,ctrl:17,control:17,"⌘":91,command:91},g={backspace:8,tab:9,clear:12,enter:13,"return":13,esc:27,escape:27,space:32,left:37,up:38,right:39,down:40,del:46,"delete":46,home:36,end:35,pageup:33,pagedown:34,",":188,".":190,"/":191,"`":192,"-":189,"=":187,";":186,"'":222,"[":219,"]":221,"\\":220};for(b=1;b<20;b++)f["f"+b]=111+b;for(b in f)k[b]=!1;m(document,"keydown",i),m(document,"keyup",j),a.key=k,a.key.setScope=l,typeof module!="undefined"&&(module.exports=key)})(this)