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Class YAHOO.util.DDProxy

Object
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   +--YAHOO.util.DragDrop
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         +--YAHOO.util.DD
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               +--YAHOO.util.DDProxy
class YAHOO.util.DDProxy
extends YAHOO.util.DD
Quick Links:  Field Summary | Constructor Summary | Method Summary | Method Details

Field Summary [top]

int borderWidth
The border width of the frame. 
boolean centerFrame
By default the frame is positioned exactly where the drag element is, so we use the cursor offset provided by YAHOO.util.DD. 
boolean resizeFrame
By default we resize the drag frame to be the same size as the element we want to drag (this is to get the frame effect). 
String dragElId
the drag frame div id 
HTMLElement frameDiv
A reference to the one proxy div element we create for all instances of this class 

Fields inherited from class YAHOO.util.DD [top]

scroll

Fields inherited from class YAHOO.util.DragDrop [top]

id, invalidHandleTypes, groups, isTarget, padding, maintainOffset, xTicks, yTicks, primaryButtonOnly

Constructor Summary [top]

YAHOO.util.DDProxy
A DragDrop implementation that inserts an empty, bordered div into the document that follows the cursor during drag operations. 

Method Summary [top]

void b4MouseDown (e)
Event that fires prior to the onMouseDown event. 
void endDrag (<Event> e)
Fired when we are done dragging the object 
void initFrame ()
Initialization for the drag frame element. 
void createFrame ()
Create the drag frame if needed 

Methods inherited from class YAHOO.util.DD

autoOffset, setDelta, setDragElPos, alignElWithMouse, cachePosition, b4Drag

Methods inherited from class YAHOO.util.DragDrop

lock, unlock, startDrag, onDrag, onDragEnter, onDragOver, onDragOut, onDragDrop, onMouseDown, onMouseUp, getEl, getDragEl, init, initTarget, setPadding, setInitPosition, addToGroup, setDragElId, setHandleElId, setOuterHandleElId, unreg, isLocked, addInvalidHandleType, removeInvalidHandleType, isValidHandleChild, setXConstraint, setYConstraint, resetConstraints, toString

Field Detail [top]

borderWidth

int   borderWidth
The border width of the frame. This is used when we resize the frame to the size of the linked element. We substract the border width to make the div the correct size.

centerFrame

boolean   centerFrame
By default the frame is positioned exactly where the drag element is, so we use the cursor offset provided by YAHOO.util.DD. Another option that works only if you do not have constraints on the obj is to have the drag frame centered around the cursor. Set centerFrame to true for this effect. Ex: ygDDMy2

resizeFrame

boolean   resizeFrame
By default we resize the drag frame to be the same size as the element we want to drag (this is to get the frame effect). We can turn it off if we want a different behavior (ex: ygDDMy2)

dragElId

String   dragElId
the drag frame div id

frameDiv

HTMLElement   frameDiv
A reference to the one proxy div element we create for all instances of this class

Constructor Detail [top]

YAHOO.util.DDProxy

YAHOO.util.DDProxy ()
A DragDrop implementation that inserts an empty, bordered div into the document that follows the cursor during drag operations. At the time of the click, the frame div is resized to the dimensions of the linked html element, and moved to the exact location of the linked element. References to the "frame" element refer to the single proxy element that was created to be dragged in place of all DDProxy elements on the page.
Parameters:
id - the id of the linked html element
sGroup - the group of related DragDrop objects

Method Detail [top]

b4MouseDown

void b4MouseDown (e)
Event that fires prior to the onMouseDown event. Overrides YAHOO.util.DragDrop.

endDrag

void endDrag (<Event> e)
Fired when we are done dragging the object
Parameters:
e -

initFrame

void initFrame ()
Initialization for the drag frame element. Must be called in the constructor of all subclasses

createFrame

void createFrame ()
Create the drag frame if needed