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src/java.desktop/share/classes/java/awt/dnd/DragSourceAdapter.java

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*** 28,53 **** /** * An abstract adapter class for receiving drag source events. The methods in * this class are empty. This class exists only as a convenience for creating * listener objects. * <p> ! * Extend this class to create a <code>DragSourceEvent</code> listener * and override the methods for the events of interest. (If you implement the ! * <code>DragSourceListener</code> interface, you have to define all of * the methods in it. This abstract class defines null methods for them * all, so you only have to define methods for events you care about.) * <p> * Create a listener object using the extended class and then register it with ! * a <code>DragSource</code>. When the drag enters, moves over, or exits * a drop site, when the drop action changes, and when the drag ends, the * relevant method in the listener object is invoked, and the ! * <code>DragSourceEvent</code> is passed to it. * <p> ! * The drop site is <i>associated with the previous <code>dragEnter()</code> ! * invocation</i> if the latest invocation of <code>dragEnter()</code> on this * adapter corresponds to that drop site and is not followed by a ! * <code>dragExit()</code> invocation on this adapter. * * @see DragSourceEvent * @see DragSourceListener * @see DragSourceMotionListener * --- 28,53 ---- /** * An abstract adapter class for receiving drag source events. The methods in * this class are empty. This class exists only as a convenience for creating * listener objects. * <p> ! * Extend this class to create a {@code DragSourceEvent} listener * and override the methods for the events of interest. (If you implement the ! * {@code DragSourceListener} interface, you have to define all of * the methods in it. This abstract class defines null methods for them * all, so you only have to define methods for events you care about.) * <p> * Create a listener object using the extended class and then register it with ! * a {@code DragSource}. When the drag enters, moves over, or exits * a drop site, when the drop action changes, and when the drag ends, the * relevant method in the listener object is invoked, and the ! * {@code DragSourceEvent} is passed to it. * <p> ! * The drop site is <i>associated with the previous {@code dragEnter()} ! * invocation</i> if the latest invocation of {@code dragEnter()} on this * adapter corresponds to that drop site and is not followed by a ! * {@code dragExit()} invocation on this adapter. * * @see DragSourceEvent * @see DragSourceListener * @see DragSourceMotionListener *
*** 65,75 **** * a platform-dependent drop site. * <LI>The drop site is active. * <LI>The drop site accepts the drag. * </UL> * ! * @param dsde the <code>DragSourceDragEvent</code> */ public void dragEnter(DragSourceDragEvent dsde) {} /** * Called as the cursor's hotspot moves over a platform-dependent drop site. --- 65,75 ---- * a platform-dependent drop site. * <LI>The drop site is active. * <LI>The drop site accepts the drag. * </UL> * ! * @param dsde the {@code DragSourceDragEvent} */ public void dragEnter(DragSourceDragEvent dsde) {} /** * Called as the cursor's hotspot moves over a platform-dependent drop site.
*** 80,108 **** * dragEnter() invocation. * <LI>The drop site is still active. * <LI>The drop site accepts the drag. * </UL> * ! * @param dsde the <code>DragSourceDragEvent</code> */ public void dragOver(DragSourceDragEvent dsde) {} /** * Called whenever the mouse is moved during a drag operation. * ! * @param dsde the <code>DragSourceDragEvent</code> */ public void dragMouseMoved(DragSourceDragEvent dsde) {} /** * Called when the user has modified the drop gesture. * This method is invoked when the state of the input * device(s) that the user is interacting with changes. * Such devices are typically the mouse buttons or keyboard * modifiers that the user is interacting with. * ! * @param dsde the <code>DragSourceDragEvent</code> */ public void dropActionChanged(DragSourceDragEvent dsde) {} /** * Called as the cursor's hotspot exits a platform-dependent drop site. --- 80,108 ---- * dragEnter() invocation. * <LI>The drop site is still active. * <LI>The drop site accepts the drag. * </UL> * ! * @param dsde the {@code DragSourceDragEvent} */ public void dragOver(DragSourceDragEvent dsde) {} /** * Called whenever the mouse is moved during a drag operation. * ! * @param dsde the {@code DragSourceDragEvent} */ public void dragMouseMoved(DragSourceDragEvent dsde) {} /** * Called when the user has modified the drop gesture. * This method is invoked when the state of the input * device(s) that the user is interacting with changes. * Such devices are typically the mouse buttons or keyboard * modifiers that the user is interacting with. * ! * @param dsde the {@code DragSourceDragEvent} */ public void dropActionChanged(DragSourceDragEvent dsde) {} /** * Called as the cursor's hotspot exits a platform-dependent drop site.
*** 120,142 **** * <UL> * <LI> The drop site associated with the previous dragEnter() invocation * has rejected the drag. * </UL> * ! * @param dse the <code>DragSourceEvent</code> */ public void dragExit(DragSourceEvent dse) {} /** * This method is invoked to signify that the Drag and Drop * operation is complete. The getDropSuccess() method of ! * the <code>DragSourceDropEvent</code> can be used to * determine the termination state. The getDropAction() method * returns the operation that the drop site selected * to apply to the Drop operation. Once this method is complete, the ! * current <code>DragSourceContext</code> and * associated resources become invalid. * ! * @param dsde the <code>DragSourceDropEvent</code> */ public void dragDropEnd(DragSourceDropEvent dsde) {} } --- 120,142 ---- * <UL> * <LI> The drop site associated with the previous dragEnter() invocation * has rejected the drag. * </UL> * ! * @param dse the {@code DragSourceEvent} */ public void dragExit(DragSourceEvent dse) {} /** * This method is invoked to signify that the Drag and Drop * operation is complete. The getDropSuccess() method of ! * the {@code DragSourceDropEvent} can be used to * determine the termination state. The getDropAction() method * returns the operation that the drop site selected * to apply to the Drop operation. Once this method is complete, the ! * current {@code DragSourceContext} and * associated resources become invalid. * ! * @param dsde the {@code DragSourceDropEvent} */ public void dragDropEnd(DragSourceDropEvent dsde) {} }
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