Merge "Integrate OnReceiveContentListener in View.onDragEvent" into sc-dev am: 1b2051e372 (50c31a58) · Commits · e / os / android_frameworks_base

core/java/android/view/View.java

+34 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package android.view;

		import static android.content.res.Resources.ID_NULL;
		import static android.view.ContentInfo.SOURCE_DRAG_AND_DROP;
		import static android.view.accessibility.AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED;
		import static android.view.displayhash.DisplayHashResultCallback.DISPLAY_HASH_ERROR_INVALID_BOUNDS;
		import static android.view.displayhash.DisplayHashResultCallback.DISPLAY_HASH_ERROR_MISSING_WINDOW;
		@@ -26747,6 +26748,21 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
		* {@link android.view.DragEvent#getAction()} returns one of the action type constants defined
		* in DragEvent. The method uses these to determine what is happening in the drag and drop
		* operation.
		* </p>
		* <p>
		* The default implementation returns false, except if an {@link OnReceiveContentListener}
		* is {@link #setOnReceiveContentListener set} for this view. If an
		* {@link OnReceiveContentListener} is set, the default implementation...
		* <ul>
		* <li>returns true for an
		* {@link android.view.DragEvent#ACTION_DRAG_STARTED ACTION_DRAG_STARTED} event
		* <li>calls {@link #performReceiveContent} for an
		* {@link android.view.DragEvent#ACTION_DROP ACTION_DROP} event
		* <li>returns true for an {@link android.view.DragEvent#ACTION_DROP ACTION_DROP} event, if
		* the listener consumed some or all of the content
		* </ul>
		* </p>
		*
		* @param event The {@link android.view.DragEvent} sent by the system.
		* The {@link android.view.DragEvent#getAction()} method returns an action type constant defined
		* in DragEvent, indicating the type of drag event represented by this object.
		@@ -26766,6 +26782,24 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
		* </p>
		*/
		public boolean onDragEvent(DragEvent event) {
		if (mListenerInfo == null \|\| mListenerInfo.mOnReceiveContentListener == null) {
		return false;
		}
		// Accept drag events by default if there's an OnReceiveContentListener set.
		if (event.getAction() == DragEvent.ACTION_DRAG_STARTED) {
		return true;
		}
		if (event.getAction() == DragEvent.ACTION_DROP) {
		final DragAndDropPermissions permissions = DragAndDropPermissions.obtain(event);
		if (permissions != null) {
		permissions.takeTransient();
		}
		final ContentInfo payload = new ContentInfo.Builder(
		event.getClipData(), SOURCE_DRAG_AND_DROP).build();
		ContentInfo remainingPayload = performReceiveContent(payload);
		// Return true unless none of the payload was consumed.
		return remainingPayload != payload;
		}
		return false;
		}

core/java/android/widget/TextView.java

+27 −1

Original line number	Diff line number	Diff line
		@@ -13071,11 +13071,37 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		return getLayout().getOffsetForHorizontal(line, x);
		}

		/**
		* Handles drag events sent by the system following a call to
		* {@link android.view.View#startDragAndDrop(ClipData,DragShadowBuilder,Object,int)
		* startDragAndDrop()}.
		*
		* <p>If this text view is not editable, delegates to the default {@link View#onDragEvent}
		* implementation.
		*
		* <p>If this text view is editable, accepts all drag actions (returns true for an
		* {@link android.view.DragEvent#ACTION_DRAG_STARTED ACTION_DRAG_STARTED} event and all
		* subsequent drag events). While the drag is in progress, updates the cursor position
		* to follow the touch location. Once a drop event is received, handles content insertion
		* via {@link #performReceiveContent}.
		*
		* @param event The {@link android.view.DragEvent} sent by the system.
		* The {@link android.view.DragEvent#getAction()} method returns an action type constant
		* defined in DragEvent, indicating the type of drag event represented by this object.
		* @return Returns true if this text view is editable and delegates to super otherwise.
		* See {@link View#onDragEvent}.
		*/
		@Override
		public boolean onDragEvent(DragEvent event) {
		if (mEditor == null \|\| !mEditor.hasInsertionController()) {
		// If this TextView is not editable, defer to the default View implementation. This
		// will check for the presence of an OnReceiveContentListener and accept/reject
		// drag events depending on whether the listener is/isn't set.
		return super.onDragEvent(event);
		}
		switch (event.getAction()) {
		case DragEvent.ACTION_DRAG_STARTED:
		return mEditor != null && mEditor.hasInsertionController();
		return true;

		case DragEvent.ACTION_DRAG_ENTERED:
		TextView.this.requestFocus();