ToolMan._dragFactory={createSimpleGroup:function(element,handle){handle=handle?handle:element
var group=this.createGroup(element)
group.setHandle(handle)
group.transparentDrag()
group.onTopWhileDragging()
return group},createGroup:function(element){var group=new _ToolManDragGroup(this,element)
var position=ToolMan.css().readStyle(element,'position')
if(position=='static'){element.style["position"]='relative'}else if(position=='absolute'){ToolMan.coordinates().topLeftOffset(element).reposition(element)}
group.register('draginit',this._showDragEventStatus)
group.register('dragmove',this._showDragEventStatus)
group.register('dragend',this._showDragEventStatus)
return group},_showDragEventStatus:function(dragEvent){window.status=dragEvent.toString()},constraints:function(){return this._constraintFactory},_createEvent:function(type,event,group){return new _ToolManDragEvent(type,event,group)}}
function _ToolManDragGroup(factory,element){this.factory=factory
this.element=element
this._handle=null
this._thresholdDistance=0
this._transforms=new Array()
this._listeners=new Array()
this._listeners['draginit']=new Array()
this._listeners['dragstart']=new Array()
this._listeners['dragmove']=new Array()
this._listeners['dragend']=new Array()}
_ToolManDragGroup.prototype={setHandle:function(handle){var events=ToolMan.events()
handle.toolManDragGroup=this
events.register(handle,'mousedown',this._dragInit)
handle.onmousedown=function(){return false}
if(this.element!=handle)
events.unregister(this.element,'mousedown',this._dragInit)},register:function(type,func){this._listeners[type].push(func)},addTransform:function(transformFunc){this._transforms.push(transformFunc)},verticalOnly:function(){this.addTransform(this.factory.constraints().vertical())},horizontalOnly:function(){this.addTransform(this.factory.constraints().horizontal())},setThreshold:function(thresholdDistance){this._thresholdDistance=thresholdDistance},transparentDrag:function(opacity){var opacity=typeof(opacity)!="undefined"?opacity:0.75;var originalOpacity=ToolMan.css().readStyle(this.element,"opacity")
this.register('dragstart',function(dragEvent){var element=dragEvent.group.element
element.style.opacity=opacity
element.style.filter='alpha(opacity='+(opacity*100)+')'})
this.register('dragend',function(dragEvent){var element=dragEvent.group.element
element.style.opacity=originalOpacity
element.style.filter='alpha(opacity=100)'})},onTopWhileDragging:function(zIndex){var zIndex=typeof(zIndex)!="undefined"?zIndex:100000;var originalZIndex=ToolMan.css().readStyle(this.element,"z-index")
this.register('dragstart',function(dragEvent){dragEvent.group.element.style.zIndex=zIndex})
this.register('dragend',function(dragEvent){dragEvent.group.element.style.zIndex=originalZIndex})},_dragInit:function(event){event=ToolMan.events().fix(event)
var group=document.toolManDragGroup=this.toolManDragGroup
var dragEvent=group.factory._createEvent('draginit',event,group)
group._isThresholdExceeded=false
group._initialMouseOffset=dragEvent.mouseOffset
group._grabOffset=dragEvent.mouseOffset.minus(dragEvent.topLeftOffset)
ToolMan.events().register(document,'mousemove',group._drag)
document.onmousemove=function(){return false}
ToolMan.events().register(document,'mouseup',group._dragEnd)
group._notifyListeners(dragEvent)},_drag:function(event){event=ToolMan.events().fix(event)
var coordinates=ToolMan.coordinates()
var group=this.toolManDragGroup
if(!group)return
var dragEvent=group.factory._createEvent('dragmove',event,group)
var newTopLeftOffset=dragEvent.mouseOffset.minus(group._grabOffset)
if(!group._isThresholdExceeded){var distance=dragEvent.mouseOffset.distance(group._initialMouseOffset)
if(distance<group._thresholdDistance)return
group._isThresholdExceeded=true
group._notifyListeners(group.factory._createEvent('dragstart',event,group))}
for(i in group._transforms){var transform=group._transforms[i]
newTopLeftOffset=transform(newTopLeftOffset,dragEvent)}
var dragDelta=newTopLeftOffset.minus(dragEvent.topLeftOffset)
var newTopLeftPosition=dragEvent.topLeftPosition.plus(dragDelta)
newTopLeftPosition.reposition(group.element)
dragEvent.transformedMouseOffset=newTopLeftOffset.plus(group._grabOffset)
group._notifyListeners(dragEvent)
var errorDelta=newTopLeftOffset.minus(coordinates.topLeftOffset(group.element))
if(errorDelta.x!=0||errorDelta.y!=0){coordinates.topLeftPosition(group.element).plus(errorDelta).reposition(group.element)}},_dragEnd:function(event){event=ToolMan.events().fix(event)
var group=this.toolManDragGroup
var dragEvent=group.factory._createEvent('dragend',event,group)
group._notifyListeners(dragEvent)
this.toolManDragGroup=null
ToolMan.events().unregister(document,'mousemove',group._drag)
document.onmousemove=null
ToolMan.events().unregister(document,'mouseup',group._dragEnd)},_notifyListeners:function(dragEvent){var listeners=this._listeners[dragEvent.type]
for(i in listeners){listeners[i](dragEvent)}}}
function _ToolManDragEvent(type,event,group){this.type=type
this.group=group
this.mousePosition=ToolMan.coordinates().mousePosition(event)
this.mouseOffset=ToolMan.coordinates().mouseOffset(event)
this.transformedMouseOffset=this.mouseOffset
this.topLeftPosition=ToolMan.coordinates().topLeftPosition(group.element)
this.topLeftOffset=ToolMan.coordinates().topLeftOffset(group.element)}
_ToolManDragEvent.prototype={toString:function(){return"mouse: "+this.mousePosition+this.mouseOffset+"    "+"xmouse: "+this.transformedMouseOffset+"    "+"left,top: "+this.topLeftPosition+this.topLeftOffset}}
ToolMan._dragFactory._constraintFactory={vertical:function(){return function(coordinate,dragEvent){var x=dragEvent.topLeftOffset.x
return coordinate.x!=x?coordinate.factory.create(x,coordinate.y):coordinate}},horizontal:function(){return function(coordinate,dragEvent){var y=dragEvent.topLeftOffset.y
return coordinate.y!=y?coordinate.factory.create(coordinate.x,y):coordinate}}}