1/*
2 * Copyright (C) 2008 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.internal.policy;
18
19import android.app.KeyguardManager;
20import android.app.SearchManager;
21import android.content.ActivityNotFoundException;
22import android.content.Context;
23import android.content.Intent;
24import android.content.res.Configuration;
25import android.media.AudioManager;
26import android.media.session.MediaSessionLegacyHelper;
27import android.os.UserHandle;
28import android.provider.Settings;
29import android.telephony.TelephonyManager;
30import android.util.Log;
31import android.view.FallbackEventHandler;
32import android.view.HapticFeedbackConstants;
33import android.view.KeyEvent;
34import android.view.View;
35import com.android.internal.policy.PhoneWindow;
36
37/**
38 * @hide
39 */
40public class PhoneFallbackEventHandler implements FallbackEventHandler {
41    private static String TAG = "PhoneFallbackEventHandler";
42    private static final boolean DEBUG = false;
43
44    Context mContext;
45    View mView;
46
47    AudioManager mAudioManager;
48    KeyguardManager mKeyguardManager;
49    SearchManager mSearchManager;
50    TelephonyManager mTelephonyManager;
51
52    public PhoneFallbackEventHandler(Context context) {
53        mContext = context;
54    }
55
56    public void setView(View v) {
57        mView = v;
58    }
59
60    public void preDispatchKeyEvent(KeyEvent event) {
61        getAudioManager().preDispatchKeyEvent(event, AudioManager.USE_DEFAULT_STREAM_TYPE);
62    }
63
64    public boolean dispatchKeyEvent(KeyEvent event) {
65
66        final int action = event.getAction();
67        final int keyCode = event.getKeyCode();
68
69        if (action == KeyEvent.ACTION_DOWN) {
70            return onKeyDown(keyCode, event);
71        } else {
72            return onKeyUp(keyCode, event);
73        }
74    }
75
76    boolean onKeyDown(int keyCode, KeyEvent event) {
77        /* ****************************************************************************
78         * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
79         * See the comment in PhoneWindow.onKeyDown
80         * ****************************************************************************/
81        final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState();
82
83        switch (keyCode) {
84            case KeyEvent.KEYCODE_VOLUME_UP:
85            case KeyEvent.KEYCODE_VOLUME_DOWN:
86            case KeyEvent.KEYCODE_VOLUME_MUTE: {
87                MediaSessionLegacyHelper.getHelper(mContext).sendVolumeKeyEvent(event, false);
88                return true;
89            }
90
91
92            case KeyEvent.KEYCODE_MEDIA_PLAY:
93            case KeyEvent.KEYCODE_MEDIA_PAUSE:
94            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
95                /* Suppress PLAY/PAUSE toggle when phone is ringing or in-call
96                 * to avoid music playback */
97                if (getTelephonyManager().getCallState() != TelephonyManager.CALL_STATE_IDLE) {
98                    return true;  // suppress key event
99                }
100            case KeyEvent.KEYCODE_MUTE:
101            case KeyEvent.KEYCODE_HEADSETHOOK:
102            case KeyEvent.KEYCODE_MEDIA_STOP:
103            case KeyEvent.KEYCODE_MEDIA_NEXT:
104            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
105            case KeyEvent.KEYCODE_MEDIA_REWIND:
106            case KeyEvent.KEYCODE_MEDIA_RECORD:
107            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
108            case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: {
109                handleMediaKeyEvent(event);
110                return true;
111            }
112
113            case KeyEvent.KEYCODE_CALL: {
114                if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
115                    break;
116                }
117                if (event.getRepeatCount() == 0) {
118                    dispatcher.startTracking(event, this);
119                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
120                    dispatcher.performedLongPress(event);
121                    if (isUserSetupComplete()) {
122                        mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
123                        // launch the VoiceDialer
124                        Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND);
125                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
126                        try {
127                            sendCloseSystemWindows();
128                            mContext.startActivity(intent);
129                        } catch (ActivityNotFoundException e) {
130                            startCallActivity();
131                        }
132                    } else {
133                        Log.i(TAG, "Not starting call activity because user "
134                                + "setup is in progress.");
135                    }
136                }
137                return true;
138            }
139
140            case KeyEvent.KEYCODE_CAMERA: {
141                if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
142                    break;
143                }
144                if (event.getRepeatCount() == 0) {
145                    dispatcher.startTracking(event, this);
146                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
147                    dispatcher.performedLongPress(event);
148                    if (isUserSetupComplete()) {
149                        mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
150                        sendCloseSystemWindows();
151                        // Broadcast an intent that the Camera button was longpressed
152                        Intent intent = new Intent(Intent.ACTION_CAMERA_BUTTON, null);
153                        intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
154                        intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
155                        mContext.sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT_OR_SELF,
156                                null, null, null, 0, null, null);
157                    } else {
158                        Log.i(TAG, "Not dispatching CAMERA long press because user "
159                                + "setup is in progress.");
160                    }
161                }
162                return true;
163            }
164
165            case KeyEvent.KEYCODE_SEARCH: {
166                if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
167                    break;
168                }
169                if (event.getRepeatCount() == 0) {
170                    dispatcher.startTracking(event, this);
171                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
172                    Configuration config = mContext.getResources().getConfiguration();
173                    if (config.keyboard == Configuration.KEYBOARD_NOKEYS
174                            || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) {
175                        if (isUserSetupComplete()) {
176                            // launch the search activity
177                            Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS);
178                            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
179                            try {
180                                mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
181                                sendCloseSystemWindows();
182                                getSearchManager().stopSearch();
183                                mContext.startActivity(intent);
184                                // Only clear this if we successfully start the
185                                // activity; otherwise we will allow the normal short
186                                // press action to be performed.
187                                dispatcher.performedLongPress(event);
188                                return true;
189                            } catch (ActivityNotFoundException e) {
190                                // Ignore
191                            }
192                        } else {
193                            Log.i(TAG, "Not dispatching SEARCH long press because user "
194                                    + "setup is in progress.");
195                        }
196                    }
197                }
198                break;
199            }
200        }
201        return false;
202    }
203
204    boolean onKeyUp(int keyCode, KeyEvent event) {
205        if (DEBUG) {
206            Log.d(TAG, "up " + keyCode);
207        }
208        final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState();
209        if (dispatcher != null) {
210            dispatcher.handleUpEvent(event);
211        }
212
213        switch (keyCode) {
214            case KeyEvent.KEYCODE_VOLUME_UP:
215            case KeyEvent.KEYCODE_VOLUME_DOWN:
216            case KeyEvent.KEYCODE_VOLUME_MUTE: {
217                if (!event.isCanceled()) {
218                    MediaSessionLegacyHelper.getHelper(mContext).sendVolumeKeyEvent(event, false);
219                }
220                return true;
221            }
222
223            case KeyEvent.KEYCODE_HEADSETHOOK:
224            case KeyEvent.KEYCODE_MUTE:
225            case KeyEvent.KEYCODE_MEDIA_PLAY:
226            case KeyEvent.KEYCODE_MEDIA_PAUSE:
227            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
228            case KeyEvent.KEYCODE_MEDIA_STOP:
229            case KeyEvent.KEYCODE_MEDIA_NEXT:
230            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
231            case KeyEvent.KEYCODE_MEDIA_REWIND:
232            case KeyEvent.KEYCODE_MEDIA_RECORD:
233            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
234            case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: {
235                handleMediaKeyEvent(event);
236                return true;
237            }
238
239            case KeyEvent.KEYCODE_CAMERA: {
240                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
241                    break;
242                }
243                if (event.isTracking() && !event.isCanceled()) {
244                    // Add short press behavior here if desired
245                }
246                return true;
247            }
248
249            case KeyEvent.KEYCODE_CALL: {
250                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
251                    break;
252                }
253                if (event.isTracking() && !event.isCanceled()) {
254                    if (isUserSetupComplete()) {
255                        startCallActivity();
256                    } else {
257                        Log.i(TAG, "Not starting call activity because user "
258                                + "setup is in progress.");
259                    }
260                }
261                return true;
262            }
263        }
264        return false;
265    }
266
267    void startCallActivity() {
268        sendCloseSystemWindows();
269        Intent intent = new Intent(Intent.ACTION_CALL_BUTTON);
270        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
271        try {
272            mContext.startActivity(intent);
273        } catch (ActivityNotFoundException e) {
274            Log.w(TAG, "No activity found for android.intent.action.CALL_BUTTON.");
275        }
276    }
277
278    SearchManager getSearchManager() {
279        if (mSearchManager == null) {
280            mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
281        }
282        return mSearchManager;
283    }
284
285    TelephonyManager getTelephonyManager() {
286        if (mTelephonyManager == null) {
287            mTelephonyManager = (TelephonyManager)mContext.getSystemService(
288                    Context.TELEPHONY_SERVICE);
289        }
290        return mTelephonyManager;
291    }
292
293    KeyguardManager getKeyguardManager() {
294        if (mKeyguardManager == null) {
295            mKeyguardManager = (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE);
296        }
297        return mKeyguardManager;
298    }
299
300    AudioManager getAudioManager() {
301        if (mAudioManager == null) {
302            mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
303        }
304        return mAudioManager;
305    }
306
307    void sendCloseSystemWindows() {
308        PhoneWindow.sendCloseSystemWindows(mContext, null);
309    }
310
311    private void handleMediaKeyEvent(KeyEvent keyEvent) {
312        MediaSessionLegacyHelper.getHelper(mContext).sendMediaButtonEvent(keyEvent, false);
313    }
314
315    private boolean isUserSetupComplete() {
316        return Settings.Secure.getInt(mContext.getContentResolver(),
317                Settings.Secure.USER_SETUP_COMPLETE, 0) != 0;
318    }
319}
320
321