PhoneFallbackEventHandler.java revision 47e6b1b5eef8ee99872f278f66bc498c4fcca0d8 
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.impl;
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.telephony.TelephonyManager;
27import android.util.EventLog;
28import android.util.Slog;
29import android.view.View;
30import android.view.HapticFeedbackConstants;
31import android.view.FallbackEventHandler;
32import android.view.KeyEvent;
33
34public class PhoneFallbackEventHandler implements FallbackEventHandler {
35    private static String TAG = "PhoneFallbackEventHandler";
36    private static final boolean DEBUG = false;
37
38    Context mContext;
39    View mView;
40
41    AudioManager mAudioManager;
42    KeyguardManager mKeyguardManager;
43    SearchManager mSearchManager;
44    TelephonyManager mTelephonyManager;
45
46    public PhoneFallbackEventHandler(Context context) {
47        mContext = context;
48    }
49
50    public void setView(View v) {
51        mView = v;
52    }
53
54    public void preDispatchKeyEvent(KeyEvent event) {
55        getAudioManager().preDispatchKeyEvent(event.getKeyCode(),
56                AudioManager.USE_DEFAULT_STREAM_TYPE);
57    }
58
59    public boolean dispatchKeyEvent(KeyEvent event) {
60
61        final int action = event.getAction();
62        final int keyCode = event.getKeyCode();
63
64        if (action == KeyEvent.ACTION_DOWN) {
65            return onKeyDown(keyCode, event);
66        } else {
67            return onKeyUp(keyCode, event);
68        }
69    }
70
71    boolean onKeyDown(int keyCode, KeyEvent event) {
72        /* ****************************************************************************
73         * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
74         * See the comment in PhoneWindow.onKeyDown
75         * ****************************************************************************/
76        final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState();
77
78        switch (keyCode) {
79            case KeyEvent.KEYCODE_VOLUME_UP:
80            case KeyEvent.KEYCODE_VOLUME_DOWN:
81            case KeyEvent.KEYCODE_VOLUME_MUTE: {
82                getAudioManager().handleKeyDown(keyCode, AudioManager.USE_DEFAULT_STREAM_TYPE);
83                return true;
84            }
85
86
87            case KeyEvent.KEYCODE_MEDIA_PLAY:
88            case KeyEvent.KEYCODE_MEDIA_PAUSE:
89            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
90                /* Suppress PLAY/PAUSE toggle when phone is ringing or in-call
91                 * to avoid music playback */
92                if (getTelephonyManager().getCallState() != TelephonyManager.CALL_STATE_IDLE) {
93                    return true;  // suppress key event
94                }
95            case KeyEvent.KEYCODE_MUTE:
96            case KeyEvent.KEYCODE_HEADSETHOOK:
97            case KeyEvent.KEYCODE_MEDIA_STOP:
98            case KeyEvent.KEYCODE_MEDIA_NEXT:
99            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
100            case KeyEvent.KEYCODE_MEDIA_REWIND:
101            case KeyEvent.KEYCODE_MEDIA_RECORD:
102            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
103                Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
104                intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
105                mContext.sendOrderedBroadcast(intent, null);
106                return true;
107            }
108
109            case KeyEvent.KEYCODE_CALL: {
110                if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
111                    break;
112                }
113                if (event.getRepeatCount() == 0) {
114                    dispatcher.startTracking(event, this);
115                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
116                    dispatcher.performedLongPress(event);
117                    mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
118                    // launch the VoiceDialer
119                    Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND);
120                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
121                    try {
122                        sendCloseSystemWindows();
123                        mContext.startActivity(intent);
124                    } catch (ActivityNotFoundException e) {
125                        startCallActivity();
126                    }
127                }
128                return true;
129            }
130
131            case KeyEvent.KEYCODE_CAMERA: {
132                if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
133                    break;
134                }
135                if (event.getRepeatCount() == 0) {
136                    dispatcher.startTracking(event, this);
137                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
138                    dispatcher.performedLongPress(event);
139                    mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
140                    sendCloseSystemWindows();
141                    // Broadcast an intent that the Camera button was longpressed
142                    Intent intent = new Intent(Intent.ACTION_CAMERA_BUTTON, null);
143                    intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
144                    mContext.sendOrderedBroadcast(intent, null);
145                }
146                return true;
147            }
148
149            case KeyEvent.KEYCODE_SEARCH: {
150                if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
151                    break;
152                }
153                if (event.getRepeatCount() == 0) {
154                    dispatcher.startTracking(event, this);
155                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
156                    Configuration config = mContext.getResources().getConfiguration();
157                    if (config.keyboard == Configuration.KEYBOARD_NOKEYS
158                            || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) {
159                        // launch the search activity
160                        Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS);
161                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
162                        try {
163                            mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
164                            sendCloseSystemWindows();
165                            getSearchManager().stopSearch();
166                            mContext.startActivity(intent);
167                            // Only clear this if we successfully start the
168                            // activity; otherwise we will allow the normal short
169                            // press action to be performed.
170                            dispatcher.performedLongPress(event);
171                            return true;
172                        } catch (ActivityNotFoundException e) {
173                            // Ignore
174                        }
175                    }
176                }
177                break;
178            }
179        }
180        return false;
181    }
182
183    boolean onKeyUp(int keyCode, KeyEvent event) {
184        if (DEBUG) {
185            Slog.d(TAG, "up " + keyCode);
186        }
187        final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState();
188        if (dispatcher != null) {
189            dispatcher.handleUpEvent(event);
190        }
191
192        switch (keyCode) {
193            case KeyEvent.KEYCODE_VOLUME_UP:
194            case KeyEvent.KEYCODE_VOLUME_DOWN:
195            case KeyEvent.KEYCODE_VOLUME_MUTE: {
196                if (!event.isCanceled()) {
197                    AudioManager audioManager = (AudioManager)mContext.getSystemService(
198                            Context.AUDIO_SERVICE);
199                    if (audioManager != null) {
200                        getAudioManager().handleKeyUp(keyCode,
201                                AudioManager.USE_DEFAULT_STREAM_TYPE);
202                    }
203                }
204                return true;
205            }
206
207            case KeyEvent.KEYCODE_HEADSETHOOK:
208            case KeyEvent.KEYCODE_MUTE:
209            case KeyEvent.KEYCODE_MEDIA_PLAY:
210            case KeyEvent.KEYCODE_MEDIA_PAUSE:
211            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
212            case KeyEvent.KEYCODE_MEDIA_STOP:
213            case KeyEvent.KEYCODE_MEDIA_NEXT:
214            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
215            case KeyEvent.KEYCODE_MEDIA_REWIND:
216            case KeyEvent.KEYCODE_MEDIA_RECORD:
217            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
218                Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
219                intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
220                mContext.sendOrderedBroadcast(intent, null);
221                return true;
222            }
223
224            case KeyEvent.KEYCODE_CAMERA: {
225                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
226                    break;
227                }
228                if (event.isTracking() && !event.isCanceled()) {
229                    // Add short press behavior here if desired
230                }
231                return true;
232            }
233
234            case KeyEvent.KEYCODE_CALL: {
235                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
236                    break;
237                }
238                if (event.isTracking() && !event.isCanceled()) {
239                    startCallActivity();
240                }
241                return true;
242            }
243        }
244        return false;
245    }
246
247    void startCallActivity() {
248        sendCloseSystemWindows();
249        Intent intent = new Intent(Intent.ACTION_CALL_BUTTON);
250        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
251        try {
252            mContext.startActivity(intent);
253        } catch (ActivityNotFoundException e) {
254            Slog.w(TAG, "No activity found for android.intent.action.CALL_BUTTON.");
255        }
256    }
257
258    SearchManager getSearchManager() {
259        if (mSearchManager == null) {
260            mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
261        }
262        return mSearchManager;
263    }
264
265    TelephonyManager getTelephonyManager() {
266        if (mTelephonyManager == null) {
267            mTelephonyManager = (TelephonyManager)mContext.getSystemService(
268                    Context.TELEPHONY_SERVICE);
269        }
270        return mTelephonyManager;
271    }
272
273    KeyguardManager getKeyguardManager() {
274        if (mKeyguardManager == null) {
275            mKeyguardManager = (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE);
276        }
277        return mKeyguardManager;
278    }
279
280    AudioManager getAudioManager() {
281        if (mAudioManager == null) {
282            mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
283        }
284        return mAudioManager;
285    }
286
287    void sendCloseSystemWindows() {
288        PhoneWindowManager.sendCloseSystemWindows(mContext, null);
289    }
290}
291
292