libjs-jquery-event-drop 12-1 / usr / share / javascript / jquery-event-drop / jquery.event.drop.min.js

(function($){$.fn.drop=function(fn1,fn2,fn3){if(fn2)this.bind("dropstart",fn1);if(fn3)this.bind("dropend",fn3);return!fn1?this.trigger("drop"):this.bind("drop",fn2?fn2:fn1)};$.dropManage=function(opts){opts=opts||{};drop.data=[];drop.filter=opts.filter||"*";drop.delay=opts.delay||drop.delay;drop.tolerance=opts.tolerance||null;drop.mode=opts.mode||drop.mode||"intersect";return drop.$targets.filter(drop.filter).each(function(){drop.data[drop.data.length]=drop.locate(this)})};var $event=$.event,$special=$event.special,drop=$special.drop={delay:100,mode:"intersect",$targets:$([]),data:[],setup:function(){drop.$targets=drop.$targets.add(this);drop.data[drop.data.length]=drop.locate(this)},teardown:function(){var elem=this;drop.$targets=drop.$targets.not(this);drop.data=$.grep(drop.data,function(obj){return obj.elem!==elem})},handler:function(event){var dropstart=null,dropped;event.dropTarget=drop.dropping||undefined;if(drop.data.length&&event.dragTarget){switch(event.type){case"drag":drop.event=event;if(!drop.timer)drop.timer=setTimeout(tolerate,20);break;case"mouseup":drop.timer=clearTimeout(drop.timer);if(!drop.dropping)break;if(drop.allowed)dropped=hijack(event,"drop",drop.dropping);dropstart=false;case drop.dropping&&"dropstart":dropstart=dropstart===null&&drop.allowed?true:false;case drop.dropping&&"dropend":hijack(event,"dropend",drop.dropping);drop.dropping=null;if(dropped===false)event.dropTarget=undefined;if(!dropstart)break;case drop.allowed&&"dropstart":event.dropTarget=this;drop.dropping=hijack(event,"dropstart",this)!==false?this:null;break}}},locate:function(elem){var $el=$(elem),pos=$el.offset(),h=$el.outerHeight(),w=$el.outerWidth();return{elem:elem,L:pos.left,R:pos.left+w,T:pos.top,B:pos.top+h,W:w,H:h}},contains:function(target,test){return(test[0]||test.L)>=target.L&&(test[0]||test.R)<=target.R&&(test[1]||test.T)>=target.T&&(test[1]||test.B)<=target.B},modes:{intersect:function(event,proxy,target){return this.contains(target,[event.pageX,event.pageY])?target:this.modes["overlap"].apply(this,arguments)},overlap:function(event,proxy,target){target.overlap=Math.max(0,Math.min(target.B,proxy.B)-Math.max(target.T,proxy.T))*Math.max(0,Math.min(target.R,proxy.R)-Math.max(target.L,proxy.L));if(target.overlap>((this.best||{}).overlap||0))this.best=target;return null},fit:function(event,proxy,target){return this.contains(target,proxy)?target:null},middle:function(event,proxy,target){return this.contains(target,[proxy.L+proxy.W/2,proxy.T+proxy.H/2])?target:null}}};function hijack(event,type,elem){event.type=type;try{var result=$event.handle.call(elem,event)}catch(ex){}return result===false?false:result||event.result}function tolerate(){var i=0,drp,winner,xy=[drop.event.pageX,drop.event.pageY],drg=drop.locate(drop.event.dragProxy);drop.tolerance=drop.tolerance||drop.modes[drop.mode];do{if(drp=drop.data[i]){winner=drop.tolerance?drop.tolerance.call(drop,drop.event,drg,drp):drop.contains(drp,xy)?drp:null}}while(++i<drop.data.length&&!winner);drop.event.type=(winner=winner||drop.best)?"dropstart":"dropend";if(drop.event.type=="dropend"||winner.elem!=drop.dropping)drop.handler.call(winner?winner.elem:drop.dropping,drop.event);if(drop.last&&xy[0]==drop.last.pageX&&xy[1]==drop.last.pageY)delete drop.timer;else drop.timer=setTimeout(tolerate,drop.delay);drop.last=drop.event;drop.best=null}})(jQuery);