com.eje_c.android.view.CompositeGestureDetector.java Source code

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Here is the source code for com.eje_c.android.view.CompositeGestureDetector.java

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/*
 * Copyright (c) 2014 eje inc.
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.eje_c.android.view;

import android.content.Context;
import android.support.v4.view.GestureDetectorCompat;
import android.view.GestureDetector.OnDoubleTapListener;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.view.ScaleGestureDetector;
import android.view.ScaleGestureDetector.OnScaleGestureListener;

import com.eje_c.android.view.RotateGestureDetector.OnRotateGestureListener;

public class CompositeGestureDetector {
    public static interface OnCompositeGestureListener
            extends OnGestureListener, OnDoubleTapListener, OnScaleGestureListener, OnRotateGestureListener {
        void onUp(MotionEvent event);
    }

    public static class SimpleOnCompositeGestureListener implements OnCompositeGestureListener {

        @Override
        public boolean onDown(MotionEvent e) {
            return false;
        }

        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            return false;
        }

        @Override
        public void onLongPress(MotionEvent e) {
        }

        @Override
        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
            return false;
        }

        @Override
        public void onShowPress(MotionEvent e) {
        }

        @Override
        public boolean onSingleTapUp(MotionEvent e) {
            return false;
        }

        @Override
        public boolean onDoubleTap(MotionEvent e) {
            return false;
        }

        @Override
        public boolean onDoubleTapEvent(MotionEvent e) {
            return false;
        }

        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            return false;
        }

        @Override
        public boolean onScale(ScaleGestureDetector detector) {
            return false;
        }

        @Override
        public boolean onScaleBegin(ScaleGestureDetector detector) {
            return true;
        }

        @Override
        public void onScaleEnd(ScaleGestureDetector detector) {
        }

        @Override
        public boolean onRotate(float degrees, float focusX, float focusY) {
            return false;
        }

        @Override
        public void onUp(MotionEvent event) {
        }
    }

    private GestureDetectorCompat gestureDetector;
    private ScaleGestureDetector scaleGestureDetector;
    private RotateGestureDetector rotateGestureDetector;
    private OnCompositeGestureListener listener;
    private MotionEvent currentEvent;
    private MotionEvent previousEvent;

    public CompositeGestureDetector(Context context, OnCompositeGestureListener listener) {
        this.listener = listener;
        gestureDetector = new GestureDetectorCompat(context, listener);
        scaleGestureDetector = new ScaleGestureDetector(context, listener);
        rotateGestureDetector = new RotateGestureDetector(context, listener);
    }

    public boolean onTouchEvent(MotionEvent event) {
        currentEvent = event;
        gestureDetector.onTouchEvent(event);
        scaleGestureDetector.onTouchEvent(event);
        rotateGestureDetector.onTouchEvent(event);

        if (event.getAction() == MotionEvent.ACTION_UP) {
            listener.onUp(event);
        }

        previousEvent = event;
        return true;
    }

    public MotionEvent getCurrentEvent() {
        return currentEvent;
    }

    public MotionEvent getPreviousEvent() {
        return previousEvent;
    }
}