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66 lines
1.9 KiB
JavaScript
66 lines
1.9 KiB
JavaScript
14 years ago
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/*
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Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojo.dnd.Mover"]){
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dojo._hasResource["dojo.dnd.Mover"]=true;
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dojo.provide("dojo.dnd.Mover");
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dojo.require("dojo.dnd.common");
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dojo.require("dojo.dnd.autoscroll");
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dojo.declare("dojo.dnd.Mover",null,{constructor:function(_1,e,_2){
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this.node=dojo.byId(_1);
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this.marginBox={l:e.pageX,t:e.pageY};
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this.mouseButton=e.button;
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var h=this.host=_2,d=_1.ownerDocument,_3=dojo.connect(d,"onmousemove",this,"onFirstMove");
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this.events=[dojo.connect(d,"onmousemove",this,"onMouseMove"),dojo.connect(d,"onmouseup",this,"onMouseUp"),dojo.connect(d,"ondragstart",dojo.stopEvent),dojo.connect(d.body,"onselectstart",dojo.stopEvent),_3];
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if(h&&h.onMoveStart){
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h.onMoveStart(this);
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}
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},onMouseMove:function(e){
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dojo.dnd.autoScroll(e);
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var m=this.marginBox;
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this.host.onMove(this,{l:m.l+e.pageX,t:m.t+e.pageY},e);
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dojo.stopEvent(e);
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},onMouseUp:function(e){
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if(dojo.isWebKit&&dojo.isMac&&this.mouseButton==2?e.button==0:this.mouseButton==e.button){
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this.destroy();
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}
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dojo.stopEvent(e);
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},onFirstMove:function(e){
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var s=this.node.style,l,t,h=this.host;
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switch(s.position){
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case "relative":
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case "absolute":
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l=Math.round(parseFloat(s.left))||0;
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t=Math.round(parseFloat(s.top))||0;
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break;
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default:
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s.position="absolute";
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var m=dojo.marginBox(this.node);
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var b=dojo.doc.body;
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var bs=dojo.getComputedStyle(b);
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var bm=dojo._getMarginBox(b,bs);
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var bc=dojo._getContentBox(b,bs);
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l=m.l-(bc.l-bm.l);
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t=m.t-(bc.t-bm.t);
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break;
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}
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this.marginBox.l=l-this.marginBox.l;
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this.marginBox.t=t-this.marginBox.t;
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if(h&&h.onFirstMove){
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h.onFirstMove(this,e);
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}
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dojo.disconnect(this.events.pop());
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},destroy:function(){
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dojo.forEach(this.events,dojo.disconnect);
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var h=this.host;
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if(h&&h.onMoveStop){
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h.onMoveStop(this);
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}
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this.events=this.node=this.host=null;
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}});
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}
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