@Override
public boolean canAcceptDrop() {
if (mOnDropDelegate != null) {
return mOnDropDelegate.checkDropDataAcceptable(null, this);
}
return false;
}
@Override
public boolean onDragEnded(DragEvent event) {
boolean success = event.getResult();
if (mOnDropDelegate != null) {
if (!success) {
mOnDropDelegate.onDropFailed(this);
}
}
return false;
}
@Override
public boolean onDrop(DragEvent event) {
if (mUseAsAdapterViewChild) {
setBackgroundColor(APLAH_TRANSPARENT);
}
if (mHoverCountDownTimer != null) {
mHoverCountDownTimer.cancel();
}
if (mOnDropDelegate != null) {
Object data = mOnDropDelegate.generateDropData();
boolean result = true;
if (mOnDropDelegate.checkDropDataAcceptable(data, this)) {
result = mOnDropDelegate.handleDrop(data, this);
if (result) {
mOnDropDelegate.onDropSuccess(this);
} else {
mOnDropDelegate.onDropFailed(this);
}
} else {
if (mOnDropDelegate.shouldDispathUnacceptableDropToParent(this)) {
Log.i(TAG, "dispatch unacceptable drop to parent.");
result = super.onDragEvent(event);
} else {
// Only notify drop denial when the view has indicated it could possibly
// accept drop (Actual it could not)
// Task 'canOpen' as a possible drop indicator because it also changed the UI
// as the 'canAcceptDrop' did. User might tend to think it is dropable.
if (canOpen()) {
mOnDropDelegate.notifyDropDataDenied(data, this);
}
mOnDropDelegate.onDropFailed(this);
}
}
return result;
}
return false;
}
@Override
public void onHover() {
if (mOnDropDelegate != null) {
mOnDropDelegate.onHover(this);
}
}