Garfield, Tan | 48ef36f | 2016-06-09 12:04:22 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.documentsui.testing; |
| 18 | |
| 19 | import android.os.Handler; |
| 20 | import android.os.Looper; |
| 21 | import android.os.Message; |
| 22 | |
| 23 | import java.util.TimerTask; |
| 24 | |
| 25 | /** |
| 26 | * A test double of {@link Handler}, backed by {@link TestTimer}. |
| 27 | */ |
| 28 | public class TestHandler extends Handler { |
| 29 | private TestTimer mTimer = new TestTimer(); |
| 30 | |
| 31 | public TestHandler() { |
| 32 | // Use main looper to trick underlying handler, we're not using it at all. |
| 33 | super(Looper.getMainLooper()); |
| 34 | } |
| 35 | |
| 36 | public boolean hasScheduledMessage() { |
| 37 | return mTimer.hasScheduledTask(); |
| 38 | } |
| 39 | |
| 40 | public void dispatchNextMessage() { |
| 41 | mTimer.fastForwardToNextTask(); |
| 42 | } |
| 43 | |
| 44 | @Override |
| 45 | public boolean sendMessageAtTime(Message msg, long uptimeMillis) { |
| 46 | msg.setTarget(this); |
| 47 | TimerTask task = new MessageTimerTask(msg); |
| 48 | mTimer.scheduleAtTime(new TestTimer.Task(task), uptimeMillis); |
| 49 | return true; |
| 50 | } |
| 51 | |
| 52 | private static class MessageTimerTask extends TimerTask { |
| 53 | private Message mMessage; |
| 54 | |
| 55 | private MessageTimerTask(Message message) { |
| 56 | mMessage = message; |
| 57 | } |
| 58 | |
| 59 | @Override |
| 60 | public void run() { |
| 61 | mMessage.getTarget().dispatchMessage(mMessage); |
| 62 | } |
| 63 | } |
| 64 | } |