1/*
2 * Copyright (C) 2011 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
17package com.android.systemui.screenshot;
18
19import android.app.Service;
20import android.content.Intent;
21import android.os.Handler;
22import android.os.IBinder;
23import android.os.Message;
24import android.os.Messenger;
25import android.os.RemoteException;
26import android.os.UserManager;
27import android.util.Log;
28import android.view.WindowManager;
29
30public class TakeScreenshotService extends Service {
31    private static final String TAG = "TakeScreenshotService";
32
33    private static GlobalScreenshot mScreenshot;
34
35    private Handler mHandler = new Handler() {
36        @Override
37        public void handleMessage(Message msg) {
38            final Messenger callback = msg.replyTo;
39            Runnable finisher = new Runnable() {
40                @Override
41                public void run() {
42                    Message reply = Message.obtain(null, 1);
43                    try {
44                        callback.send(reply);
45                    } catch (RemoteException e) {
46                    }
47                }
48            };
49
50            // If the storage for this user is locked, we have no place to store
51            // the screenshot, so skip taking it instead of showing a misleading
52            // animation and error notification.
53            if (!getSystemService(UserManager.class).isUserUnlocked()) {
54                Log.w(TAG, "Skipping screenshot because storage is locked!");
55                post(finisher);
56                return;
57            }
58
59            if (mScreenshot == null) {
60                mScreenshot = new GlobalScreenshot(TakeScreenshotService.this);
61            }
62
63            switch (msg.what) {
64                case WindowManager.TAKE_SCREENSHOT_FULLSCREEN:
65                    mScreenshot.takeScreenshot(finisher, msg.arg1 > 0, msg.arg2 > 0);
66                    break;
67                case WindowManager.TAKE_SCREENSHOT_SELECTED_REGION:
68                    mScreenshot.takeScreenshotPartial(finisher, msg.arg1 > 0, msg.arg2 > 0);
69                    break;
70            }
71        }
72    };
73
74    @Override
75    public IBinder onBind(Intent intent) {
76        return new Messenger(mHandler).getBinder();
77    }
78
79    @Override
80    public boolean onUnbind(Intent intent) {
81        if (mScreenshot != null) mScreenshot.stopScreenshot();
82        return true;
83    }
84}
85