Class VDragEvent

Method Detail

• getTransferable

  public VTransferable getTransferable()

  Deprecated.

  Returns the VTransferable instance that represents the original dragged element.

  Returns:

  the transferable instance

• getCurrentGwtEvent

  public com.google.gwt.dom.client.NativeEvent getCurrentGwtEvent()

  Deprecated.

  Returns the latest NativeEvent that relates to this drag and drop operation. For example on VDropHandler.dragEnter(VDragEvent) this is commonly a MouseOverEvent.

  Returns:

  the latest event

• setCurrentGwtEvent

  public void setCurrentGwtEvent​(com.google.gwt.dom.client.NativeEvent event)

  Deprecated.

  Sets the latest NativeEvent that relates to this drag and drop operation. For example on VDropHandler.dragEnter(VDragEvent) this is commonly a MouseOverEvent.

  Parameters:

  event - the latest event

• getElementOver

  public com.google.gwt.user.client.Element getElementOver()

  Deprecated.

  Detecting the element on which the the event is happening may be problematic during drag and drop operation. This is especially the case if a drag image (often called also drag proxy) is kept under the mouse cursor (see createDragImage(Element, boolean). Drag and drop event handlers (like the one provided by VDragAndDropManager ) should set elmentOver field to reflect the the actual element on which the pointer currently is (drag image excluded). VDropHandlers can then more easily react properly on drag events by reading the element via this method.

  Returns:

  the element in VDropHandler on which mouse cursor is on

• setElementOver

  @Deprecated
  public void setElementOver​(com.google.gwt.user.client.Element targetElement)

  Deprecated.

  As of 7.2, call or override setElementOver(Element) instead

  Parameters:

  targetElement - target element over which DnD event has happened

  See Also:

  getElementOver()

• setElementOver

  public void setElementOver​(com.google.gwt.dom.client.Element targetElement)

  Deprecated.

  Parameters:

  targetElement - target element over which DnD event has happened

  Since:

  7.2

  See Also:

  getElementOver()

• setDragImage

  @Deprecated
  public void setDragImage​(com.google.gwt.user.client.Element node)

  Deprecated.

  As of 7.2, call or override setDragImage(Element) instead

  Sets the drag image used for current drag and drop operation. Drag image is displayed next to mouse cursor during drag and drop.

  The element to be used as drag image will automatically get CSS style name "v-drag-element". TODO decide if this method should be here or in VTransferable (in HTML5 it is in DataTransfer) or VDragAndDropManager TODO should be possible to override behavior. Like to proxy the element to HTML5 DataTransfer

  Parameters:

  node - a cloned node or other representation of the original element that is dragged

• setDragImage

  public void setDragImage​(com.google.gwt.dom.client.Element node)

  Deprecated.

  Sets the drag image used for current drag and drop operation. Drag image is displayed next to mouse cursor during drag and drop.

  The element to be used as drag image will automatically get CSS style name "v-drag-element". TODO decide if this method should be here or in VTransferable (in HTML5 it is in DataTransfer) or VDragAndDropManager TODO should be possible to override behavior. Like to proxy the element to HTML5 DataTransfer

  Parameters:

  node - a cloned node or other representation of the original element that is dragged

  Since:

  7.2

• getDropDetails

  public Map<String,​Object> getDropDetails()

  Deprecated.

  Returns the details of the drag and drop operation. TODO consider using similar smaller (than map) API as in Transferable TODO clean up when drop handler changes

  Returns:

  the drop details

• setDragImage

  @Deprecated
  public void setDragImage​(com.google.gwt.user.client.Element element,
                           int offsetX,
                           int offsetY)

  Deprecated.

  As of 7.2, call or override setDragImage(Element,int,int) instead

  Sets the drag image used for current drag and drop operation. Drag image is displayed next to mouse cursor during drag and drop.

  The element to be used as drag image will automatically get CSS style name "v-drag-element".

  Parameters:

  element - the dom element to be positioned next to mouse cursor

  offsetX - the horizontal offset of drag image from mouse cursor

  offsetY - the vertical offset of drag image from mouse cursor

• setDragImage

  public void setDragImage​(com.google.gwt.dom.client.Element element,
                           int offsetX,
                           int offsetY)

  Deprecated.

  Sets the drag image used for current drag and drop operation. Drag image is displayed next to mouse cursor during drag and drop.

  The element to be used as drag image will automatically get CSS style name "v-drag-element".

  Parameters:

  element - the dom element to be positioned next to mouse cursor

  offsetX - the horizontal offset of drag image from mouse cursor

  offsetY - the vertical offset of drag image from mouse cursor

  Since:

  7.2

• getDragImage

  public com.google.gwt.user.client.Element getDragImage()

  Deprecated.

  Returns:

  the current Element used as a drag image (aka drag proxy) or null if drag image is not currently set for this drag operation.

• createDragImage

  @Deprecated
  public void createDragImage​(com.google.gwt.user.client.Element element,
                              boolean alignImageToEvent)

  Deprecated.

  As of 7.2, call or override createDragImage(Element,boolean) instead

  Automatically tries to create a proxy image from given element.

  Parameters:

  element - the original element that is dragged

  alignImageToEvent - if true, proxy image is aligned to start event, else next to mouse cursor

• createDragImage

  public void createDragImage​(com.google.gwt.dom.client.Element element,
                              boolean alignImageToEvent)

  Deprecated.

  Automatically tries to create a proxy image from given element.

  Parameters:

  element - the original element that is dragged

  alignImageToEvent - if true, proxy image is aligned to start event, else next to mouse cursor

  Since:

  7.2