Class Roo.dd.DragDropMgr

Helper function for getting the best match from the list of drag
and drop objects returned by the drag and drop events when we are
in INTERSECT mode. It returns either the first object that the
cursor is over, or the object that has the greatest overlap with
the dragged element.

Parameters:

DragDrop[] dds

The array of drag and drop objects
targeted

Returns:

DragDrop The best single match

Returns the style property for the DOM element (i.e.,
document.getElById(id).style)

Parameters:

String id

the id of the elment to get

Deprecated:

use Roo.getDom instead

Returns:

Object The style property of the element

Returns the DragDrop instance for a given id

Parameters:

String id

the id of the DragDrop object

Returns:

DragDrop the drag drop object, null if it is not found

Returns the actual DOM element

Parameters:

String id

the id of the elment to get

Deprecated:

use Roo.getDom instead

Returns:

Object The element

Returns a Region object containing the drag and drop element's position
and size, including the padding configured for it

Parameters:

DragDrop oDD

the drag and drop object to get the
location for

Returns:

Roo.lib.Region a Region object representing the total area
the element occupies, including any padding
the instance is configured for.

Returns the X position of an html element

Parameters:

el

the element for which to get the position

Deprecated:

use Roo.lib.Dom.getX instead

Returns:

int the X coordinate

Returns the Y position of an html element

Parameters:

el

the element for which to get the position

Deprecated:

use Roo.lib.Dom.getY instead

Returns:

int the Y coordinate

Returns the drag and drop instances that are in all groups the
passed in instance belongs to.

Parameters:

DragDrop p_oDD

the obj to get related data for

boolean bTargetsOnly

if true, only return targetable objs

Returns:

DragDrop[] the related instances

Gets the scrollLeft

Returns:

int the document's scrollTop

Gets the scrollTop

Returns:

int the document's scrollTop

Returns the specified element style property

Parameters:

HTMLElement el

the element

string styleProp

the style property

Deprecated:

use Roo.lib.Dom.getStyle

Returns:

string The value of the style property

Recursively searches the immediate parent and all child nodes for
the handle element in order to determine wheter or not it was
clicked.

Parameters:

node

the html element to inspect

Utility function to determine if a given element has been
registered as a drag drop item.

Parameters:

String id

the element id to check

Returns:

boolean true if this element is a DragDrop item,
false otherwise

Utility function to determine if a given element has been
registered as a drag drop handle for the given Drag Drop object.

Parameters:

String id

the element id to check

Returns:

boolean true if this element is a DragDrop handle, false
otherwise

Returns true if the specified dd target is a legal target for
the specifice drag obj

Parameters:

DragDrop the

drag obj

DragDrop the

target

Returns:

boolean true if the target is a legal target for the
dd obj

Is drag and drop locked?

Returns:

boolean True if drag and drop is locked, false otherwise.

My goal is to be able to transparently determine if an object is
typeof DragDrop, and the exact subclass of DragDrop. typeof
returns "object", oDD.constructor.toString() always returns
"DragDrop" and not the name of the subclass. So for now it just
evaluates a well-known variable in DragDrop.

Parameters:

Object the

object to evaluate

Returns:

boolean true if typeof oDD = DragDrop

Lock all drag and drop functionality

Sets the x/y position of an element to the location of the
target element.

Parameters:

HTMLElement moveEl

The element to move

HTMLElement targetEl

The position reference element

Numeric array sort function

Refreshes the cache of the top-left and bottom-right points of the
drag and drop objects in the specified group(s). This is in the
format that is stored in the drag and drop instance, so typical
usage is:

Roo.dd.DragDropMgr.refreshCache(ddinstance.groups);

Alternatively:

Roo.dd.DragDropMgr.refreshCache({group1:true, group2:true});


Parameters:

Object groups

an associative array of groups to refresh

Each DragDrop instance must be registered with the DragDropMgr.
This is executed in DragDrop.init()

Parameters:

DragDrop oDD

the DragDrop object to register

String sGroup

the name of the group this element belongs to

Each DragDrop handle element must be registered. This is done
automatically when executing DragDrop.setHandleElId()

Parameters:

String sDDId

the DragDrop id this element is a handle for

String sHandleId

the id of the element that is the drag
handle

Fired when either the drag pixel threshol or the mousedown hold
time threshold has been met.

Parameters:

x

{int} the X position of the original mousedown

y

{int} the Y position of the original mousedown

Utility to stop event propagation and event default, if these
features are turned on.

Parameters:

Event e

the event as returned by this.getEvent()

Swap two nodes. In IE, we use the native method, for others we
emulate the IE behavior

Parameters:

n1

the first node to swap

n2

the other node to swap

Unlock all drag and drop functionality

This checks to make sure an element exists and is in the DOM. The
main purpose is to handle cases where innerHTML is used to remove
drag and drop objects from the DOM. IE provides an 'unspecified
error' when trying to access the offsetParent of such an element

Parameters:

HTMLElement el

the element to check

Returns:

boolean true if the element looks usable