window.Sys.ie6&&document.execCommand("BackgroundImageCache", false, true);
視窗.$ = 函數(Id){
return document.getElementById(Id);
};
window.addListener = function(element,e,fn){
!element.events&&(element.events = {});
element.events[e]&&(element.events[e][addListener.guid ]=fn)||(element.events[e] = {'0':fn});
element.addEventListener?element.addEventListener(e,fn,false):element.attachEvent("on" e,fn);
};
window.addListener.guid = 1;
window.removeListener = function(element,e,fn){
var handlers = element.events[e],type;
如果（fn）{
for（輸入處理程序）
if(handlers[type]===fn){
element.removeEventListener?element.removeEventListener(e,fn,false):element.detachEvent("on" e,fn);
移除處理程序[型別];
}
}其他{
for（輸入處理程序）{
element.removeEventListener?element.removeEventListener(e,handlers[type],false):element.detachEvent("on" e,handlers[type]);
移除處理程序[型別];
}
}
};
window.setStyle = function(e,o){
if(typeof o=="string")
e.style.cssText=o;
否則
for(var i in o)
e.style[i] = o[i];
};
var slice = Array.prototype.slice;
window.Bind = function(object, fun) {
var args = slice.call(arguments).slice(2);
回傳函數() {
return fun.apply(object, args);
};
};
window.BindAsEventListener = function(object, fun,args) {
var args = slice.call(arguments).slice(2);
返回函數（事件）{
return fun.apply(object, [event || window.event].concat(args));
}
};
//從jQ
複製
window.extend = function(){
var 目標 = 參數[0] || {}, i = 1, length = argument.length, deep = true, options;
if ( typeof target === "boolean" ) {
深度=目標；
目標=參數[1] || {};
我 = 2;
}
if ( typeof target !== "object" && Object.prototype.toString.call(target)!="[object Function]")
目標 = {};
for(;i
if ( (options = argument[ i ]) != null )
for(選項中的變項名稱){
var src = target[ name ], copy = options[ name ];
if ( 目標 === 複製 )
續；
if ( deep && copy && typeof copy === "object" && !copy.nodeType ){
地
}
else if(複製！==未定義)
目標[姓名]=複製；
}
}
回目標；
};
//從jQ
複製
window.each = 函數（物件、回呼、參數）{
var name, i = 0, length = object.length;
if ( args ) {
args = Array.prototype.slice.call(arguments).slice(2);
if ( 長度 === 未定義 ) {
for (物件中的名稱)
if (callback.apply( object[ name ],[name,object[ name ]].concat(args) ) === fargalse ) === 發現
休息;
} 其他
for ( ; i
if (callback.apply( object[ i ],[i,object[ i ]].concat(args)) === false ) //
休息;
} 其他 {
if ( 長度 === 未定義 ) {
for (物件中的名稱)
if (callback.call(物件[姓名],名稱,物件[姓名])=== false)
休息;
} 其他
for ( var value = object[0];
我
}
回傳物件；
};
window.currentStyle = 函數(元素){
回傳元素.currentStyle || document.defaultView.getCompulatedStyle(element, null);
};
window.objPos = 函數(elem){
var 左 = 0，上 = 0，右 = 0，下 = 0，doc = elem ？ elem.ownerDocument ：文件；
if ( !elem.getBoundingClientRect || window.Sys.ie8 ) {
var n = elem;
while (n) { 左 = n.offsetLeft, 上 = n.offsetTop; n = n.offsetParent; };
右 = 左 elem.offsetWidth;底部 = 頂部 elem.offsetHeight;
} 其他 {
var rect = elem.getBoundingClientRect();
左 = 右 = doc.documentElement.scrollLeft || doc.body.scrollLeft;
上方 = 底部 = doc.documentElement.scrollLeft || doc.body.scrollLeft;
左 = 長方形.左;右 = 直角.右;
上方 = 長方形.上方;底部 = rect.bottom;
}
return { "left": 左, "top": 上, "right": 右, "bottom": 下 };
};
window.hasClass = function(element, className){
return element.className.match(new RegExp('(\s|^)' className '(\s|$)'));
};
window.addClass = function(element, className){
!window.hasClass(element, className)&&(element.className = " " className);
};
window.removeClass = function(element, className){
window.hasClass(element, className)&&(element.className = element.className.replace(new RegExp('(\s|^)' className '(\s|$)'),' ' ));
}
})(視窗);
var 拖曳 = {
elem ：空，
zindex：0，
選項：{},
初始化 : function(){
每個（參數，函數（i，elem，oThis）{
addListener(elem,'mousedown',BindAsEventListener(oThis,oThis.start,elem));
},這個);
},
開始：函數（e，elem）{
var elem=this.elem = elem;
elem.style.zIndex= this.zindex;
this.x = e.clientX - elem.offsetLeft ;
this.y = e.clientY - elem.offsetTop;
this.marginLeft = parseInt(currentStyle(elem).marginLeft)||0;
this.marginTop = parseInt(currentStyle(elem).marginTop)||0;
Sys.ie?elem.setCapture():e.preventDefault();
addListener(document,"mousemove",BindAsEventListener(this,this.move));
addListener(文檔,"mouseup",Bind(this,this.up));
this.options.callbackmove&&this.options.callbackmove(this.elem);
},
移動：函數(e){
窗口.getSelection ？ window.getSelection().removeAllRanges() : document.selection.empty();
var iLeft = e.clientX - this.x,iTop = e.clientY - this.y;obj = this.elem;
obj.style.left = iLeft - this.marginLeft "px";
obj.style.top = iTop - this.marginTop "px";
this.options.callbackmove&&this.options.callbackmove(this.elem);
},
向上：函數（）{
removeListener(document,'mousemove');
removeListener(document,'mouseup');
Sys.ie&&this.elem.releaseCapture();
this.options.callbackup&&this.options.callbackup(this.elem);
}
};
var 重疊 = {
宿舍 :{}, //所有需要計算重疊的元素
overlapList :{}, // 已重疊的元素
初始化：函數（elems）{
各（elems，函數（i，elem，oThis）{
elem.setAttribute('重疊),i);
var ret = objPos(elem),l=ret.left,t=ret.top,b=ret.bottom,r=ret.right;
oThis.hostel[i]={elem:elem,leftTopDot:{x:l,y:t},leftBottomDot:{x:l,y:b},rightTopDot:{x:r,y:t},rightBottomDot: {x:r,y:b}};
},這個);
},
setElem:函數(elem){
if(!elem)return;
var ret = objPos(elem),l=ret.left,t=ret.top,b=ret.bottom,r=ret.right;
this.hostel[elem.getAttribute('overlap')] ={elem:elem,leftTopDot:{x:l,y:t},leftBottomDot:{x:l,y:b},rightTopDot:{x:r, y:t},rightBottomDot:{x:r,y:b}};
},
//判斷是否重疊
isOverlap : 函數(我的){
var obj= {}, my = this.hostel[my.getAttribute('overlap')];
各(this.hostel,function(key,config,oThis){
// 是元素本身則回傳
if(config.elem === my.elem)return ;
//判斷2個div是否重疊則回復
if(my.leftBottomDot.y=config.leftBottomDot.y||my.rightTopDot.x =config.rightTopDot.x)
返回；
obj[config.elem.getAttribute('overlap')] = [config.elem,oThis.howOverlap(my,config)];
},這個);
返回物件；
},
//判斷重疊面積
howOverlap ：函數（我的，其他）{
var l=other.leftBottomDot.x,r=other.rightTopDot.x,t=other.leftTopDot.y,b=other.leftBottomDot.y,arr=[],
lt = this.include(my.leftTopDot,l,r,t,b,'leftTopDot-rightBottomDot'),
lb = this.include(my.leftBottomDot,l,r,t,b,'leftBottomDot-rightTopDot'),
rt = this.include(my.rightTopDot,l,r,t,b,'rightTopDot-leftBottomDot'),
rb = this.include(my.rightBottomDot,l,r,t,b,'rightBottomDot-leftTopDot');
lt&&arr.push(lt)||lb&&arr.push(lb)||rt&&arr.push(rt)||rb&&arr.push(rb);
if(!arr[0]) return 0;
if(arr.length====1||arr.length====2){
var key = arr[0].split('-'),x1=my[key[0]].x,y1=my[key[0]].y,x2=other[key[1]].x ,y2=其他[鍵[1]].y;
返回 Math.abs((x1-x2)*(y1-y2));
};
//完全重疊
if(arr.length===4){
返回162*162；
};
},
// 看點不是在另一個div中
包括：函數（點，l，r，t，b，鍵）{
return (dot.x>=l&&dot.x=t&&dot.y
}
};
window.onload = function(){
擴充(Drag.options,{callbackmove:move,callbackup:up});
函數向上（elem）{
for(重疊中的 var n.overlapList)
removeClass(overlap.overlapList[n][0],'focus')
overlap.overlapList = {};
Drag.elem.innerHTML =Drag.elem.id;
};
function move(elem){
overlap.setElem(elem);
//p為判斷回傳的obj是不是空的
var obj = overlap.isOverlap(elem),name,p = function(o){
for (name in o)
return 稱為;
return true;
}(obj);
//如果為空物件 則回傳 不進行下面的遍歷
if(p){
up();
return;
};
var str ='';
overlap.overlapList = obj;
each(overlap.hostel,function(key,config){
if(obj[key]){
addClass(obj[key][0],'focus');
str = str '與' obj[key][0].id '重疊的面積為:' obj[key][1] '';
}else{
removeClass(config.elem,'focus');
}
});
Drag.elem.innerHTML = str;
};
Drag.init($('demo1'),$('demo2'),$('demo3'),$('demo4'),$('demo5'),$('demo6'),$('demo7 '),$('demo8'),$('demo9'));
overlap.init([$('demo1'),$('demo2'),$('demo3'),$('demo4'),$('demo5'),$('demo6'),$(' demo7'),$('demo8'),$('demo9')]);
};
