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 17 package com.android.systemui.screenshot; 18 19 import android.app.Service; 20 import android.content.Intent; 21 import android.os.Handler; 22 import android.os.IBinder; 23 import android.os.Message; 24 import android.os.Messenger; 25 import android.os.RemoteException; 26 import android.os.UserManager; 27 import android.util.Log; 28 import android.view.WindowManager; 29 30 public 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 onBind(Intent intent)75 public IBinder onBind(Intent intent) { 76 return new Messenger(mHandler).getBinder(); 77 } 78 79 @Override onUnbind(Intent intent)80 public boolean onUnbind(Intent intent) { 81 if (mScreenshot != null) mScreenshot.stopScreenshot(); 82 return true; 83 } 84 } 85