| /* |
| * Copyright (C) 2020 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.wallpaper.picker; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.GestureDetector; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.widget.FrameLayout; |
| |
| /** A frame layout that listens to touch events and routes them to another view. */ |
| public class TouchForwardingLayout extends FrameLayout { |
| |
| private View mView; |
| private boolean mForwardingEnabled; |
| private GestureDetector mGestureDetector; |
| |
| public TouchForwardingLayout(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mGestureDetector = new GestureDetector(context, |
| new GestureDetector.SimpleOnGestureListener() { |
| @Override |
| public boolean onSingleTapConfirmed(MotionEvent e) { |
| return performClick(); |
| } |
| }); |
| } |
| |
| @Override |
| public boolean dispatchTouchEvent(MotionEvent ev) { |
| mGestureDetector.onTouchEvent(ev); |
| if (mView != null && mForwardingEnabled) { |
| mView.dispatchTouchEvent(ev); |
| } |
| return true; |
| } |
| |
| /** Set the view that the touch events are routed to */ |
| public void setTargetView(View view) { |
| mView = view; |
| } |
| |
| public void setForwardingEnabled(boolean forwardingEnabled) { |
| mForwardingEnabled = forwardingEnabled; |
| } |
| } |