KeyguardService.java revision e7c285725d1b6af76e7655a79a3e71f3809fdd9f 
1/*
2 * Copyright (C) 2013 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.keyguard;
18
19import java.io.FileDescriptor;
20import java.io.PrintWriter;
21
22import android.app.Service;
23import android.content.Intent;
24import static android.content.pm.PackageManager.PERMISSION_GRANTED;
25
26import android.os.Binder;
27import android.os.Bundle;
28import android.os.Debug;
29import android.os.IBinder;
30import android.util.Log;
31import android.view.MotionEvent;
32
33import com.android.internal.policy.IKeyguardService;
34import com.android.internal.policy.IKeyguardExitCallback;
35import com.android.internal.policy.IKeyguardShowCallback;
36import com.android.internal.widget.LockPatternUtils;
37
38public class KeyguardService extends Service {
39    static final String TAG = "KeyguardService";
40    static final String PERMISSION = android.Manifest.permission.CONTROL_KEYGUARD;
41    private KeyguardViewMediator mKeyguardViewMediator;
42
43    @Override
44    public void onCreate() {
45        if (mKeyguardViewMediator == null) {
46            mKeyguardViewMediator = new KeyguardViewMediator(
47                    KeyguardService.this, new LockPatternUtils(KeyguardService.this));
48        }
49        Log.v(TAG, "onCreate()");
50    }
51
52    @Override
53    public IBinder onBind(Intent intent) {
54        return mBinder;
55    }
56
57    @Override
58    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
59        // TODO
60    }
61
62    void checkPermission() {
63        if (getBaseContext().checkCallingOrSelfPermission(PERMISSION) != PERMISSION_GRANTED) {
64            Log.w(TAG, "Caller needs permission '" + PERMISSION + "' to call " + Debug.getCaller());
65            throw new SecurityException("Access denied to process: " + Binder.getCallingPid()
66                    + ", must have permission " + PERMISSION);
67        }
68    }
69
70    private final IKeyguardService.Stub mBinder = new IKeyguardService.Stub() {
71        private boolean mSetHiddenCalled;
72        private boolean mIsHidden;
73        public boolean isShowing() {
74            return mKeyguardViewMediator.isShowing();
75        }
76        public boolean isSecure() {
77            return mKeyguardViewMediator.isSecure();
78        }
79        public boolean isShowingAndNotHidden() {
80            return mKeyguardViewMediator.isShowingAndNotHidden();
81        }
82        public boolean isInputRestricted() {
83            return mKeyguardViewMediator.isInputRestricted();
84        }
85        public void verifyUnlock(IKeyguardExitCallback callback) {
86            mKeyguardViewMediator.verifyUnlock(callback);
87        }
88        public void keyguardDone(boolean authenticated, boolean wakeup) {
89            checkPermission();
90            mKeyguardViewMediator.keyguardDone(authenticated, wakeup);
91        }
92        public void setHidden(boolean isHidden) {
93            checkPermission();
94            if (mSetHiddenCalled && mIsHidden == isHidden) return;
95            mKeyguardViewMediator.setHidden(isHidden);
96            mSetHiddenCalled = true;
97            mIsHidden = isHidden;
98        }
99        public void dismiss() {
100            mKeyguardViewMediator.dismiss();
101        }
102        public void onDreamingStarted() {
103            checkPermission();
104            mKeyguardViewMediator.onDreamingStarted();
105        }
106        public void onDreamingStopped() {
107            checkPermission();
108            mKeyguardViewMediator.onDreamingStopped();
109        }
110        public void onScreenTurnedOff(int reason) {
111            checkPermission();
112            mKeyguardViewMediator.onScreenTurnedOff(reason);
113        }
114        public void onScreenTurnedOn(IKeyguardShowCallback callback) {
115            checkPermission();
116            mKeyguardViewMediator.onScreenTurnedOn(callback);
117        }
118        public void setKeyguardEnabled(boolean enabled) {
119            checkPermission();
120            mKeyguardViewMediator.setKeyguardEnabled(enabled);
121        }
122        public boolean isDismissable() {
123            return mKeyguardViewMediator.isDismissable();
124        }
125        public void onSystemReady() {
126            checkPermission();
127            mKeyguardViewMediator.onSystemReady();
128        }
129        public void doKeyguardTimeout(Bundle options) {
130            checkPermission();
131            mKeyguardViewMediator.doKeyguardTimeout(options);
132        }
133        public void setCurrentUser(int userId) {
134            checkPermission();
135            mKeyguardViewMediator.setCurrentUser(userId);
136        }
137        public void showAssistant() {
138            checkPermission();
139            mKeyguardViewMediator.showAssistant();
140        }
141        public void dispatch(MotionEvent event) {
142            checkPermission();
143            mKeyguardViewMediator.dispatch(event);
144        }
145        public void launchCamera() {
146            checkPermission();
147            mKeyguardViewMediator.launchCamera();
148        }
149        public void onBootCompleted() {
150            checkPermission();
151            mKeyguardViewMediator.onBootCompleted();
152        }
153    };
154
155}
156
157