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/*
* Copyright © 2014 Jerzy Chalupski
* Copyright © 2017-2018 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.widget.fab;
import android.graphics.Rect;
import androidx.annotation.Nullable;
import android.view.MotionEvent;
import android.view.TouchDelegate;
import android.view.View;
import java.util.ArrayList;
import java.util.Collection;
public class TouchDelegateGroup extends TouchDelegate {
private static final Rect USELESS_HACKY_RECT = new Rect();
private final Collection<TouchDelegate> mTouchDelegates = new ArrayList<>();
@Nullable private TouchDelegate mCurrentTouchDelegate;
private boolean mEnabled;
public TouchDelegateGroup(final View uselessHackyView) {
super(USELESS_HACKY_RECT, uselessHackyView);
}
public void addTouchDelegate(final TouchDelegate touchDelegate) {
mTouchDelegates.add(touchDelegate);
}
public void clearTouchDelegates() {
mTouchDelegates.clear();
mCurrentTouchDelegate = null;
}
@Override
public boolean onTouchEvent(final MotionEvent event) {
if (!mEnabled)
return false;
TouchDelegate delegate = null;
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
for (final TouchDelegate touchDelegate : mTouchDelegates) {
if (touchDelegate.onTouchEvent(event)) {
mCurrentTouchDelegate = touchDelegate;
return true;
}
}
break;
case MotionEvent.ACTION_MOVE:
delegate = mCurrentTouchDelegate;
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
delegate = mCurrentTouchDelegate;
mCurrentTouchDelegate = null;
break;
}
return delegate != null && delegate.onTouchEvent(event);
}
public void removeTouchDelegate(final TouchDelegate touchDelegate) {
mTouchDelegates.remove(touchDelegate);
if (mCurrentTouchDelegate == touchDelegate) {
mCurrentTouchDelegate = null;
}
}
public void setEnabled(final boolean enabled) {
mEnabled = enabled;
}
}
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