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/*
* Copyright (C) 2016 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.util;
import android.graphics.Point;
/**
* Singleton class to keep track of where the user last touched the screen.
*
* <p>Used to pass on to the InCallUI for animation.
*/
public class TouchPointManager {
public static final String TOUCH_POINT = "touchPoint";
private static TouchPointManager instance = new TouchPointManager();
private Point point = new Point();
/** Private constructor. Instance should only be acquired through getRunningInstance(). */
private TouchPointManager() {}
public static TouchPointManager getInstance() {
return instance;
}
public Point getPoint() {
return point;
}
public void setPoint(int x, int y) {
point.set(x, y);
}
/**
* When a point is initialized, its value is (0,0). Since it is highly unlikely a user will touch
* at that exact point, if the point in TouchPointManager is (0,0), it is safe to assume that the
* TouchPointManager has not yet collected a touch.
*
* @return True if there is a valid point saved. Define a valid point as any point that is not
* (0,0).
*/
public boolean hasValidPoint() {
return point.x != 0 || point.y != 0;
}
}
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