109 lines
3.2 KiB
JavaScript
109 lines
3.2 KiB
JavaScript
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//>>built
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define("dojox/mdnd/AutoScroll",["dojo/_base/kernel","dojo/_base/declare","dojo/_base/lang","dojo/_base/connect","dojo/_base/window"],function(_1){
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var as=_1.declare("dojox.mdnd.AutoScroll",null,{interval:3,recursiveTimer:10,marginMouse:50,constructor:function(){
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this.resizeHandler=_1.connect(_1.global,"onresize",this,function(){
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this.getViewport();
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});
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_1.ready(_1.hitch(this,"init"));
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},init:function(){
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this._html=(_1.isWebKit)?_1.body():_1.body().parentNode;
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this.getViewport();
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},getViewport:function(){
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var d=_1.doc,dd=d.documentElement,w=window,b=_1.body();
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if(_1.isMozilla){
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this._v={"w":dd.clientWidth,"h":w.innerHeight};
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}else{
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if(!_1.isOpera&&w.innerWidth){
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this._v={"w":w.innerWidth,"h":w.innerHeight};
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}else{
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if(!_1.isOpera&&dd&&dd.clientWidth){
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this._v={"w":dd.clientWidth,"h":dd.clientHeight};
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}else{
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if(b.clientWidth){
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this._v={"w":b.clientWidth,"h":b.clientHeight};
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}
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}
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}
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}
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},setAutoScrollNode:function(_2){
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this._node=_2;
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},setAutoScrollMaxPage:function(){
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this._yMax=this._html.scrollHeight;
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this._xMax=this._html.scrollWidth;
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},checkAutoScroll:function(e){
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if(this._autoScrollActive){
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this.stopAutoScroll();
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}
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this._y=e.pageY;
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this._x=e.pageX;
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if(e.clientX<this.marginMouse){
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this._autoScrollActive=true;
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this._autoScrollLeft(e);
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}else{
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if(e.clientX>this._v.w-this.marginMouse){
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this._autoScrollActive=true;
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this._autoScrollRight(e);
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}
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}
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if(e.clientY<this.marginMouse){
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this._autoScrollActive=true;
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this._autoScrollUp(e);
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}else{
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if(e.clientY>this._v.h-this.marginMouse){
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this._autoScrollActive=true;
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this._autoScrollDown();
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}
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}
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},_autoScrollDown:function(){
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if(this._timer){
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clearTimeout(this._timer);
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}
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if(this._autoScrollActive&&this._y+this.marginMouse<this._yMax){
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this._html.scrollTop+=this.interval;
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this._node.style.top=(parseInt(this._node.style.top)+this.interval)+"px";
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this._y+=this.interval;
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this._timer=setTimeout(_1.hitch(this,"_autoScrollDown"),this.recursiveTimer);
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}
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},_autoScrollUp:function(){
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if(this._timer){
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clearTimeout(this._timer);
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}
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if(this._autoScrollActive&&this._y-this.marginMouse>0){
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this._html.scrollTop-=this.interval;
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this._node.style.top=(parseInt(this._node.style.top)-this.interval)+"px";
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this._y-=this.interval;
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this._timer=setTimeout(_1.hitch(this,"_autoScrollUp"),this.recursiveTimer);
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}
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},_autoScrollRight:function(){
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if(this._timer){
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clearTimeout(this._timer);
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}
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if(this._autoScrollActive&&this._x+this.marginMouse<this._xMax){
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this._html.scrollLeft+=this.interval;
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this._node.style.left=(parseInt(this._node.style.left)+this.interval)+"px";
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this._x+=this.interval;
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this._timer=setTimeout(_1.hitch(this,"_autoScrollRight"),this.recursiveTimer);
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}
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},_autoScrollLeft:function(e){
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if(this._timer){
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clearTimeout(this._timer);
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}
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if(this._autoScrollActive&&this._x-this.marginMouse>0){
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this._html.scrollLeft-=this.interval;
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this._node.style.left=(parseInt(this._node.style.left)-this.interval)+"px";
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this._x-=this.interval;
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this._timer=setTimeout(_1.hitch(this,"_autoScrollLeft"),this.recursiveTimer);
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}
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},stopAutoScroll:function(){
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if(this._timer){
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clearTimeout(this._timer);
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}
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this._autoScrollActive=false;
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},destroy:function(){
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_1.disconnect(this.resizeHandler);
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}});
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dojox.mdnd.autoScroll=null;
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dojox.mdnd.autoScroll=new dojox.mdnd.AutoScroll();
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return as;
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});
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