jquery.event.drop-2.0.min.js

/*! 
 * jquery.event.drop - v 2.0.0 
 * Copyright (c) 2010 Three Dub Media - http://threedubmedia.com
 * Open Source MIT License - http://threedubmedia.com/code/license
 */
;(function(f){f.fn.drop=function(c,a,d){var g=typeof c=="string"?c:"",e=f.isFunction(c)?c:f.isFunction(a)?a:null;if(g.indexOf("drop")!==0)g="drop"+g;d=(c==e?a:d)||{};return e?this.bind(g,d,e):this.trigger(g)};f.drop=function(c){c=c||{};b.multi=c.multi===true?Infinity:c.multi===false?1:!isNaN(c.multi)?c.multi:b.multi;b.delay=c.delay||b.delay;b.tolerance=f.isFunction(c.tolerance)?c.tolerance:c.tolerance===null?null:b.tolerance;b.mode=c.mode||b.mode||"intersect"};var l=f.event,i=l.special,b=f.event.special.drop= {multi:1,delay:20,mode:"overlap",targets:[],datakey:"dropdata",livekey:"livedrop",add:function(c){var a=f.data(this,b.datakey);a.related+=1;if(!a.live&&c.selector){a.live=true;l.add(this,"dropinit."+b.livekey,b.delegate)}},remove:function(){f.data(this,b.datakey).related-=1},setup:function(){if(!f.data(this,b.datakey)){f.data(this,b.datakey,{related:0,active:[],anyactive:0,winner:0,location:{}});b.targets.push(this)}},teardown:function(){if(!f.data(this,b.datakey).related){f.removeData(this,b.datakey); l.remove(this,"dropinit",b.delegate);var c=this;b.targets=f.grep(b.targets,function(a){return a!==c})}},handler:function(c,a){var d;if(a)switch(c.type){case "mousedown":d=f(b.targets);if(typeof a.drop=="string")d=d.filter(a.drop);d.each(function(){var g=f.data(this,b.datakey);g.active=[];g.anyactive=0;g.winner=0});a.droppable=d;b.delegates=[];i.drag.hijack(c,"dropinit",a);b.delegates=f.unique(i.drag.flatten(b.delegates));break;case "mousemove":b.event=c;b.timer||b.tolerate(a);break;case "mouseup":b.timer= clearTimeout(b.timer);if(a.propagates){i.drag.hijack(c,"drop",a);i.drag.hijack(c,"dropend",a);f.each(b.delegates||[],function(){l.remove(this,"."+b.livekey)})}break}},delegate:function(c){var a=[],d,g=f.data(this,"events")||{};f.each(g.live||[],function(e,h){if(h.preType.indexOf("drop")===0){d=f(c.currentTarget).find(h.selector);d.length&&d.each(function(){l.add(this,h.origType+"."+b.livekey,h.origHandler,h.data);f.inArray(this,a)<0&&a.push(this)})}});b.delegates.push(a);return a.length?f(a):false}, locate:function(c,a){var d=f.data(c,b.datakey),g=f(c),e=g.offset()||{},h=g.outerHeight();g=g.outerWidth();e={elem:c,width:g,height:h,top:e.top,left:e.left,right:e.left+g,bottom:e.top+h};if(d){d.location=e;d.index=a;d.elem=c}return e},contains:function(c,a){return(a[0]||a.left)>=c.left&&(a[0]||a.right)<=c.right&&(a[1]||a.top)>=c.top&&(a[1]||a.bottom)<=c.bottom},modes:{intersect:function(c,a,d){return this.contains(d,[c.pageX,c.pageY])?1E9:this.modes.overlap.apply(this,arguments)},overlap:function(c, a,d){return Math.max(0,Math.min(d.bottom,a.bottom)-Math.max(d.top,a.top))*Math.max(0,Math.min(d.right,a.right)-Math.max(d.left,a.left))},fit:function(c,a,d){return this.contains(d,a)?1:0},middle:function(c,a,d){return this.contains(d,[a.left+a.width*0.5,a.top+a.height*0.5])?1:0}},sort:function(c,a){return a.winner-c.winner||c.index-a.index},tolerate:function(c){var a,d,g,e,h,m,j=0,k,p=c.interactions.length,n=[b.event.pageX,b.event.pageY],o=b.tolerance||b.modes[b.mode];do if(k=c.interactions[j]){if(!k)return; k.drop=[];h=[];m=k.droppable.length;if(o)g=b.locate(k.proxy);a=0;do if(d=k.droppable[a]){e=f.data(d,b.datakey);if(d=e.location){e.winner=o?o.call(b,b.event,g,d):b.contains(d,n)?1:0;h.push(e)}}while(++a<m);h.sort(b.sort);a=0;do if(e=h[a])if(e.winner&&k.drop.length<b.multi){if(!e.active[j]&&!e.anyactive)if(i.drag.hijack(b.event,"dropstart",c,j,e.elem)[0]!==false){e.active[j]=1;e.anyactive+=1}else e.winner=0;e.winner&&k.drop.push(e.elem)}else if(e.active[j]&&e.anyactive==1){i.drag.hijack(b.event,"dropend", c,j,e.elem);e.active[j]=0;e.anyactive-=1}while(++a<m)}while(++j<p);if(b.last&&n[0]==b.last.pageX&&n[1]==b.last.pageY)delete b.timer;else b.timer=setTimeout(function(){b.tolerate(c)},b.delay);b.last=b.event}};i.dropinit=i.dropstart=i.dropend=b})(jQuery);