/* * 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.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; public TouchForwardingLayout(Context context, AttributeSet attrs) { super(context, attrs); } @Override public boolean dispatchTouchEvent(MotionEvent 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; } }