1 /** 2 * Copyright (C) 2014 Google Inc. 3 * Licensed to The Android Open Source Project. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package com.android.mail.ui; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.MotionEvent; 22 import android.widget.FrameLayout; 23 24 /** 25 * Empty frame to steal events for two-pane view when the drawer is open. 26 */ 27 public class ConversationViewFrame extends FrameLayout { 28 29 public interface DownEventListener { onInterceptCVDownEvent()30 boolean onInterceptCVDownEvent(); 31 } 32 33 private DownEventListener mDownEventListener; 34 ConversationViewFrame(Context c)35 public ConversationViewFrame(Context c) { 36 super(c, null); 37 } 38 ConversationViewFrame(Context c, AttributeSet attrs)39 public ConversationViewFrame(Context c, AttributeSet attrs) { 40 super(c, attrs); 41 } 42 setDownEventListener(DownEventListener l)43 public void setDownEventListener(DownEventListener l) { 44 mDownEventListener = l; 45 } 46 47 @Override onInterceptTouchEvent(MotionEvent ev)48 public boolean onInterceptTouchEvent(MotionEvent ev) { 49 boolean steal = false; 50 if (ev.getActionMasked() == MotionEvent.ACTION_DOWN && mDownEventListener != null) { 51 steal = mDownEventListener.onInterceptCVDownEvent(); 52 // just drop the event stream that follows when we steal; we closed the drawer and 53 // that's enough. 54 } 55 return steal; 56 } 57 58 } 59