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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.dialer.list;
import android.graphics.Rect;
import android.util.Log;
import android.view.DragEvent;
import android.view.View;
import android.view.View.OnDragListener;
import com.android.dialer.list.PhoneFavoritesTileAdapter.ContactTileRow;
/**
* Implements the OnLongClickListener and OnDragListener for phone's favorite tiles and rows.
*/
public class PhoneFavoriteDragAndDropListeners {
private static final String TAG = PhoneFavoriteDragAndDropListeners.class.getSimpleName();
private static final boolean DEBUG = false;
/**
* Implements the OnDragListener to handle drag events.
*/
public static class PhoneFavoriteDragListener implements OnDragListener {
/** Location of the drag event. */
private float mX = 0;
private float mY = 0;
private final ContactTileRow mContactTileRow;
private final PhoneFavoritesTileAdapter mTileAdapter;
public PhoneFavoriteDragListener(ContactTileRow contactTileRow,
PhoneFavoritesTileAdapter tileAdapter) {
super();
mContactTileRow = contactTileRow;
mTileAdapter = tileAdapter;
}
@Override
public boolean onDrag(View v, DragEvent event) {
if (DEBUG) {
Log.v(TAG, event.toString());
}
// Handles drag events.
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
if (mTileAdapter != null && mContactTileRow != null
&& !mTileAdapter.getInDragging()) {
mX = event.getX();
mY = event.getY();
if (DEBUG) {
Log.v(TAG, String.valueOf(mX) + "; " + String.valueOf(mY));
}
final int[] rowLocation = new int[2];
mContactTileRow.getLocationOnScreen(rowLocation);
final Rect locationRect = new Rect(rowLocation[0], rowLocation[1],
rowLocation[0] + mContactTileRow.getWidth(),
rowLocation[1] + mContactTileRow.getHeight());
if (locationRect.contains((int) mX, (int) mY)) {
// Finds out which item is being dragged.
// Computes relative coordinates as we get absolute coordinates.
final int dragIndex = mContactTileRow.getItemIndex(
mX - rowLocation[0], mY - rowLocation[1]);
if (DEBUG) {
Log.v(TAG, "Start dragging " + String.valueOf(dragIndex));
}
// Indicates a drag has started.
mTileAdapter.setInDragging(true);
// Temporarily pops out the Contact entry.
mTileAdapter.popContactEntry(dragIndex);
}
}
break;
case DragEvent.ACTION_DRAG_ENTERED:
break;
case DragEvent.ACTION_DRAG_EXITED:
break;
case DragEvent.ACTION_DROP:
mX = event.getX();
mY = event.getY();
if (DEBUG) {
Log.v(TAG, String.valueOf(mX) + "; " + String.valueOf(mY));
}
// Indicates a drag has finished.
if (mTileAdapter != null && mContactTileRow != null) {
mTileAdapter.setInDragging(false);
// Finds out at which position of the list the Contact is being dropped.
final int dropIndex = mContactTileRow.getItemIndex(mX, mY);
if (DEBUG) {
Log.v(TAG, "Stop dragging " + String.valueOf(dropIndex));
}
// Adds the dragged contact to the drop position.
mTileAdapter.dropContactEntry(dropIndex);
}
break;
case DragEvent.ACTION_DRAG_ENDED:
if (mTileAdapter.getInDragging()) {
// If the drag and drop ends when the drop happens outside of any rows,
// we will end the drag here and put the item back to where it was dragged
// from before.
mTileAdapter.setInDragging(false);
mTileAdapter.dropToUnsupportedView();
}
break;
case DragEvent.ACTION_DRAG_LOCATION:
break;
default:
break;
}
return true;
}
}
}
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