14 lines
3.3 KiB
JavaScript
14 lines
3.3 KiB
JavaScript
/*
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keymage.js - Javascript keyboard bindings handling
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http://github.com/piranha/keymage
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(c) 2012-2016 Alexander Solovyov under terms of ISC License
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*/
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(function(h,u){h(function(){function h(b){var a=b.split(/-(?!$)/),c=a[a.length-1],e={code:l[c]};if(!e.code)throw'Unknown key "'+c+'" in keystring "'+b+'"';for(var f,d=0;d<a.length-1;d++){c=a[d];f=z[c];if(!f)throw'Unknown modifier "'+c+'" in keystring "'+b+'"';e[f]=!0}return e}function q(b){for(var a="",c=0;c<r.length;c++)b[r[c]]&&(a+=r[c]+"-");return a+=n[b.code]}function A(b){for(var a=[],c=b.split(" "),e=0;e<c.length;e++){var f=h(c[e]),f=q(f);a.push(f)}a.original=b;return a}function B(b){for(var a=
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{code:b.keyCode},c=0;c<v.length;c++){var e=v[c];b[e]&&(a[e.slice(0,e.length-3)]=!0)}return q(a)}function w(b,a,c){b=b.split(".");var e=s;b=b.concat(a);a=0;for(var f=b.length;a<f;a++){var d=b[a];if(d&&(e=e[d]||(e[d]={}),c&&c._keymage.preventDefault&&(e.preventDefault=!0),a===f-1))return e.handlers||(e.handlers=[])}}function C(b,a,c){w(b,a,c).push(c)}function x(b,a,c){b=w(b,a);c=b.indexOf(c);~c&&b.splice(c,1)}function y(b,a,c,e){if(a===u&&c===u)return function(a,c){return g(b,a,c)};"function"===typeof a&&
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(e=c,c=a,a=b,b="");a=A(a);return[b,a,c,e]}function g(b,a,c,e){var d=y(b,a,c,e);c=d[2];e=d[3];c._keymage=e||{};c._keymage.original=a;C.apply(null,d);return function(){x.apply(null,d)}}var v=["shiftKey","ctrlKey","altKey","metaKey"],z={shift:"shift",ctrl:"ctrl",control:"ctrl",alt:"alt",option:"alt",win:"meta",cmd:"meta","super":"meta",meta:"meta",defmod:"undefined"!==typeof navigator&&~navigator.userAgent.indexOf("Mac OS X")?"meta":"ctrl"},r=["shift","ctrl","alt","meta"],D=[16,17,18,91],l={backspace:8,
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tab:9,enter:13,"return":13,pause:19,caps:20,capslock:20,escape:27,esc:27,space:32,pgup:33,pageup:33,pgdown:34,pagedown:34,end:35,home:36,ins:45,insert:45,del:46,"delete":46,left:37,up:38,right:39,down:40,"*":106,"+":107,plus:107,minus:109,";":186,"=":187,",":188,"-":189,".":190,"/":191,"`":192,"[":219,"\\":220,"]":221,"'":222},d;for(d=0;10>d;d++)l["num-"+d]=d+95;for(d=0;10>d;d++)l[""+d]=d+48;for(d=1;25>d;d++)l["f"+d]=d+111;for(d=65;91>d;d++)l[String.fromCharCode(d).toLowerCase()]=d;var n={},p;for(p in l)if(d=
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l[p],!n[d]||n[d].length<p.length)n[d]=p;var k="",s={},t=[];g.unbind=function(b,a,c){b=y(b,a,c);x.apply(null,b)};g.parse=h;g.stringify=q;g.bindings=s;g.setScope=function(b){k=b?b:""};g.getScope=function(){return k};g.pushScope=function(b){return k=(k?k+".":"")+b};g.popScope=function(b){var a;if(!b)return a=k.lastIndexOf("."),b=k.slice(a+1),k=-1==a?"":k.slice(0,a),b;k=k.replace(RegExp("(^|\\.)"+b+"(\\.|$).*"),"");return b};g.version="1.1.3";window.addEventListener("keydown",function(b){if(!~D.indexOf(b.keyCode)){var a=
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t.slice();a.push(B(b));for(var c=k.split("."),d,f,g,m=c.length;0<=m;m--){f=s;g=c.slice(0,m);for(var h=0;h<g.length;h++){var l=g[h];l&&(f=f[l]);if(!f)break}if(f){d=!0;for(h=0;h<a.length;h++){g=a[h];if(!f[g]){d=!1;break}f=f[g]}if(d)break}}c=c.slice(0,m).join(".");g=f.preventDefault;if(d&&!f.handlers)t=a,g&&b.preventDefault();else{if(d)for(m=0;m<f.handlers.length;m++)a=f.handlers[m],d=a._keymage,(!1===a.call(d.context,b,{shortcut:d.original,scope:k,definitionScope:c})||g)&&b.preventDefault();t=[]}}},
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!1);return g})})("undefined"!==typeof define?define:function(h){"undefined"!==typeof module?module.exports=h():window.keymage=h()});
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