com.google.gwt.event.dom.client

## Class DragDropEventBase<H extends EventHandler>

- java.lang.Object
- - com.google.web.bindery.event.shared.Event<H>
  - - com.google.gwt.event.shared.GwtEvent<H>
    - - com.google.gwt.event.dom.client.DomEvent<H>
      - - com.google.gwt.event.dom.client.DragDropEventBase<H>

- Type Parameters:
    `H` - handler type
  All Implemented Interfaces:
    HasNativeEvent
  Direct Known Subclasses:
    DragEndEvent, DragEnterEvent, DragEvent, DragLeaveEvent, DragOverEvent, DragStartEvent, DropEvent

      public abstract class DragDropEventBase<H extends EventHandler>
      extends DomEvent<H>

  Base class for drag and drop events.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `(package private) static class` | `DragDropEventBase.DragSupportDetector` Detector for browser support of drag events.
    `(package private) static class` | `DragDropEventBase.DragSupportDetectorNo` Detector for permutations that do not support drag events.

    - ### Nested classes/interfaces inherited from class com.google.gwt.event.dom.client.DomEvent

      `DomEvent.Type<H extends EventHandler>`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `DragDropEventBase()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String` | `getData(java.lang.String format)` Get the data for the specified format from the `DataTransfer` object.
    `DataTransfer` | `getDataTransfer()` Get the `DataTransfer` associated with the current drag event.
    `static boolean` | `isSupported()` Runtime check for whether drag events are supported in this browser.
    `void` | `setData(java.lang.String format, java.lang.String data)` Set the data in the `DataTransfer` object for the specified format.

    - ### Methods inherited from class com.google.gwt.event.dom.client.DomEvent

      `fireNativeEvent, fireNativeEvent, getAssociatedType, getNativeEvent, getRelativeElement, init, preventDefault, setNativeEvent, setRelativeElement, stopPropagation`

    - ### Methods inherited from class com.google.gwt.event.shared.GwtEvent

      `assertLive, dispatch, getSource, isLive, kill, revive`

    - ### Methods inherited from class com.google.web.bindery.event.shared.Event

      `setSource, toDebugString, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### DragDropEventBase

          public DragDropEventBase()

  - ### Method Detail

    - #### isSupported

          public static boolean isSupported()

      Runtime check for whether drag events are supported in this browser.
      Returns:
        true if supported, false if not

    - #### getData

          public java.lang.String getData(java.lang.String format)

      Get the data for the specified format from the `DataTransfer` object.
      Parameters:
        `format` - the format
      Returns:
        the data for the specified format

    - #### getDataTransfer

          public DataTransfer getDataTransfer()

      Get the `DataTransfer` associated with the current drag event.
      Returns:
        the `DataTransfer` object

    - #### setData

          public void setData(java.lang.String format,
                     java.lang.String data)

      Set the data in the `DataTransfer` object for the specified format.
      Parameters:
        `format` - the format
        `data` - the data to associate with the format