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package com.android.dialer.list;
import android.view.View;
import com.android.dialer.list.PhoneFavoritesTileAdapter.ContactTileRow;
import java.util.ArrayList;
import java.util.List;
/**
* Class that handles and combines drag events generated from multiple views, and then fires
* off events to any OnDragDropListeners that have registered for callbacks.
*/
public class DragDropController {
private List<OnDragDropListener> mOnDragDropListeners = new ArrayList<OnDragDropListener>();
/**
* @return True if the drag is started, false if the drag is cancelled for some reason.
*/
boolean handleDragStarted(int x, int y, ContactTileRow tileRow) {
final PhoneFavoriteTileView tileView =
(PhoneFavoriteTileView) tileRow.getViewAtPosition(x, y);
final int itemIndex = tileRow.getItemIndex(x, y);
if (itemIndex != -1 && !mOnDragDropListeners.isEmpty()) {
for (int i = 0; i < mOnDragDropListeners.size(); i++) {
mOnDragDropListeners.get(i).onDragStarted(itemIndex, x, y, tileView);
}
}
return true;
}
public void handleDragHovered(int x, int y, View view) {
int itemIndex;
if (!(view instanceof ContactTileRow)) {
itemIndex = -1;
} else {
final ContactTileRow tile = (ContactTileRow) view;
itemIndex = tile.getItemIndex(x, y);
}
for (int i = 0; i < mOnDragDropListeners.size(); i++) {
mOnDragDropListeners.get(i).onDragHovered(itemIndex, x, y);
}
}
public void handleDragFinished(int x, int y, boolean isRemoveView) {
if (isRemoveView) {
for (int i = 0; i < mOnDragDropListeners.size(); i++) {
mOnDragDropListeners.get(i).onDroppedOnRemove();
}
}
for (int i = 0; i < mOnDragDropListeners.size(); i++) {
mOnDragDropListeners.get(i).onDragFinished(x, y);
}
}
public void addOnDragDropListener(OnDragDropListener listener) {
if (!mOnDragDropListeners.contains(listener)) {
mOnDragDropListeners.add(listener);
}
}
public void removeOnDragDropListener(OnDragDropListener listener) {
if (mOnDragDropListeners.contains(listener)) {
mOnDragDropListeners.remove(listener);
}
}
}
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