Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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.camera; |
| 18 | |
| 19 | import android.app.backup.BackupManager; |
| 20 | import android.content.Context; |
| 21 | import android.content.SharedPreferences; |
| 22 | import android.content.SharedPreferences.OnSharedPreferenceChangeListener; |
| 23 | import android.preference.PreferenceManager; |
| 24 | |
| 25 | import java.util.Map; |
| 26 | import java.util.Set; |
| 27 | import java.util.WeakHashMap; |
| 28 | import java.util.concurrent.CopyOnWriteArrayList; |
| 29 | |
Sascha Haeberling | 8e963a5 | 2013-08-06 11:43:02 -0700 | [diff] [blame] | 30 | import com.android.camera.util.UsageStatistics; |
| 31 | |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 32 | public class ComboPreferences implements |
| 33 | SharedPreferences, |
| 34 | OnSharedPreferenceChangeListener { |
| 35 | private SharedPreferences mPrefGlobal; // global preferences |
| 36 | private SharedPreferences mPrefLocal; // per-camera preferences |
Doris Liu | 4e72c90 | 2013-02-07 12:32:42 -0800 | [diff] [blame] | 37 | private String mPackageName; |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 38 | private CopyOnWriteArrayList<OnSharedPreferenceChangeListener> mListeners; |
Doris Liu | 4e72c90 | 2013-02-07 12:32:42 -0800 | [diff] [blame] | 39 | // TODO: Remove this WeakHashMap in the camera code refactoring |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 40 | private static WeakHashMap<Context, ComboPreferences> sMap = |
| 41 | new WeakHashMap<Context, ComboPreferences>(); |
| 42 | |
| 43 | public ComboPreferences(Context context) { |
Doris Liu | 4e72c90 | 2013-02-07 12:32:42 -0800 | [diff] [blame] | 44 | mPackageName = context.getPackageName(); |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 45 | mPrefGlobal = context.getSharedPreferences( |
| 46 | getGlobalSharedPreferencesName(context), Context.MODE_PRIVATE); |
| 47 | mPrefGlobal.registerOnSharedPreferenceChangeListener(this); |
| 48 | |
| 49 | synchronized (sMap) { |
| 50 | sMap.put(context, this); |
| 51 | } |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 52 | mListeners = new CopyOnWriteArrayList<OnSharedPreferenceChangeListener>(); |
| 53 | |
| 54 | // The global preferences was previously stored in the default |
| 55 | // shared preferences file. They should be stored in the camera-specific |
| 56 | // shared preferences file so we can backup them solely. |
| 57 | SharedPreferences oldprefs = |
| 58 | PreferenceManager.getDefaultSharedPreferences(context); |
| 59 | if (!mPrefGlobal.contains(CameraSettings.KEY_VERSION) |
| 60 | && oldprefs.contains(CameraSettings.KEY_VERSION)) { |
| 61 | moveGlobalPrefsFrom(oldprefs); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | public static ComboPreferences get(Context context) { |
| 66 | synchronized (sMap) { |
| 67 | return sMap.get(context); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | private static String getLocalSharedPreferencesName( |
| 72 | Context context, int cameraId) { |
| 73 | return context.getPackageName() + "_preferences_" + cameraId; |
| 74 | } |
| 75 | |
| 76 | private static String getGlobalSharedPreferencesName(Context context) { |
| 77 | return context.getPackageName() + "_preferences_camera"; |
| 78 | } |
| 79 | |
| 80 | private void movePrefFrom( |
| 81 | Map<String, ?> m, String key, SharedPreferences src) { |
| 82 | if (m.containsKey(key)) { |
| 83 | Object v = m.get(key); |
| 84 | if (v instanceof String) { |
| 85 | mPrefGlobal.edit().putString(key, (String) v).apply(); |
| 86 | } else if (v instanceof Integer) { |
| 87 | mPrefGlobal.edit().putInt(key, (Integer) v).apply(); |
| 88 | } else if (v instanceof Long) { |
| 89 | mPrefGlobal.edit().putLong(key, (Long) v).apply(); |
| 90 | } else if (v instanceof Float) { |
| 91 | mPrefGlobal.edit().putFloat(key, (Float) v).apply(); |
| 92 | } else if (v instanceof Boolean) { |
| 93 | mPrefGlobal.edit().putBoolean(key, (Boolean) v).apply(); |
| 94 | } |
| 95 | src.edit().remove(key).apply(); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | private void moveGlobalPrefsFrom(SharedPreferences src) { |
| 100 | Map<String, ?> prefMap = src.getAll(); |
| 101 | movePrefFrom(prefMap, CameraSettings.KEY_VERSION, src); |
| 102 | movePrefFrom(prefMap, CameraSettings.KEY_VIDEO_TIME_LAPSE_FRAME_INTERVAL, src); |
| 103 | movePrefFrom(prefMap, CameraSettings.KEY_CAMERA_ID, src); |
| 104 | movePrefFrom(prefMap, CameraSettings.KEY_RECORD_LOCATION, src); |
| 105 | movePrefFrom(prefMap, CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN, src); |
| 106 | movePrefFrom(prefMap, CameraSettings.KEY_VIDEO_FIRST_USE_HINT_SHOWN, src); |
| 107 | movePrefFrom(prefMap, CameraSettings.KEY_VIDEO_EFFECT, src); |
| 108 | } |
| 109 | |
| 110 | public static String[] getSharedPreferencesNames(Context context) { |
| 111 | int numOfCameras = CameraHolder.instance().getNumberOfCameras(); |
| 112 | String prefNames[] = new String[numOfCameras + 1]; |
| 113 | prefNames[0] = getGlobalSharedPreferencesName(context); |
| 114 | for (int i = 0; i < numOfCameras; i++) { |
| 115 | prefNames[i + 1] = getLocalSharedPreferencesName(context, i); |
| 116 | } |
| 117 | return prefNames; |
| 118 | } |
| 119 | |
| 120 | // Sets the camera id and reads its preferences. Each camera has its own |
| 121 | // preferences. |
| 122 | public void setLocalId(Context context, int cameraId) { |
| 123 | String prefName = getLocalSharedPreferencesName(context, cameraId); |
| 124 | if (mPrefLocal != null) { |
| 125 | mPrefLocal.unregisterOnSharedPreferenceChangeListener(this); |
| 126 | } |
| 127 | mPrefLocal = context.getSharedPreferences( |
| 128 | prefName, Context.MODE_PRIVATE); |
| 129 | mPrefLocal.registerOnSharedPreferenceChangeListener(this); |
| 130 | } |
| 131 | |
| 132 | public SharedPreferences getGlobal() { |
| 133 | return mPrefGlobal; |
| 134 | } |
| 135 | |
| 136 | public SharedPreferences getLocal() { |
| 137 | return mPrefLocal; |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public Map<String, ?> getAll() { |
| 142 | throw new UnsupportedOperationException(); // Can be implemented if needed. |
| 143 | } |
| 144 | |
| 145 | private static boolean isGlobal(String key) { |
| 146 | return key.equals(CameraSettings.KEY_VIDEO_TIME_LAPSE_FRAME_INTERVAL) |
| 147 | || key.equals(CameraSettings.KEY_CAMERA_ID) |
| 148 | || key.equals(CameraSettings.KEY_RECORD_LOCATION) |
| 149 | || key.equals(CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN) |
| 150 | || key.equals(CameraSettings.KEY_VIDEO_FIRST_USE_HINT_SHOWN) |
| 151 | || key.equals(CameraSettings.KEY_VIDEO_EFFECT) |
| 152 | || key.equals(CameraSettings.KEY_TIMER) |
Angus Kong | 1580df6 | 2013-03-15 17:32:59 -0700 | [diff] [blame] | 153 | || key.equals(CameraSettings.KEY_TIMER_SOUND_EFFECTS) |
| 154 | || key.equals(CameraSettings.KEY_PHOTOSPHERE_PICTURESIZE); |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public String getString(String key, String defValue) { |
| 159 | if (isGlobal(key) || !mPrefLocal.contains(key)) { |
| 160 | return mPrefGlobal.getString(key, defValue); |
| 161 | } else { |
| 162 | return mPrefLocal.getString(key, defValue); |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | @Override |
| 167 | public int getInt(String key, int defValue) { |
| 168 | if (isGlobal(key) || !mPrefLocal.contains(key)) { |
| 169 | return mPrefGlobal.getInt(key, defValue); |
| 170 | } else { |
| 171 | return mPrefLocal.getInt(key, defValue); |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | @Override |
| 176 | public long getLong(String key, long defValue) { |
| 177 | if (isGlobal(key) || !mPrefLocal.contains(key)) { |
| 178 | return mPrefGlobal.getLong(key, defValue); |
| 179 | } else { |
| 180 | return mPrefLocal.getLong(key, defValue); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | @Override |
| 185 | public float getFloat(String key, float defValue) { |
| 186 | if (isGlobal(key) || !mPrefLocal.contains(key)) { |
| 187 | return mPrefGlobal.getFloat(key, defValue); |
| 188 | } else { |
| 189 | return mPrefLocal.getFloat(key, defValue); |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | @Override |
| 194 | public boolean getBoolean(String key, boolean defValue) { |
| 195 | if (isGlobal(key) || !mPrefLocal.contains(key)) { |
| 196 | return mPrefGlobal.getBoolean(key, defValue); |
| 197 | } else { |
| 198 | return mPrefLocal.getBoolean(key, defValue); |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | // This method is not used. |
| 203 | @Override |
| 204 | public Set<String> getStringSet(String key, Set<String> defValues) { |
| 205 | throw new UnsupportedOperationException(); |
| 206 | } |
| 207 | |
| 208 | @Override |
| 209 | public boolean contains(String key) { |
Bobby Georgescu | 806e78b | 2013-04-01 14:31:40 -0700 | [diff] [blame] | 210 | return mPrefLocal.contains(key) || mPrefGlobal.contains(key); |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | private class MyEditor implements Editor { |
| 214 | private Editor mEditorGlobal; |
| 215 | private Editor mEditorLocal; |
| 216 | |
| 217 | MyEditor() { |
| 218 | mEditorGlobal = mPrefGlobal.edit(); |
| 219 | mEditorLocal = mPrefLocal.edit(); |
| 220 | } |
| 221 | |
| 222 | @Override |
| 223 | public boolean commit() { |
| 224 | boolean result1 = mEditorGlobal.commit(); |
| 225 | boolean result2 = mEditorLocal.commit(); |
| 226 | return result1 && result2; |
| 227 | } |
| 228 | |
| 229 | @Override |
| 230 | public void apply() { |
| 231 | mEditorGlobal.apply(); |
| 232 | mEditorLocal.apply(); |
| 233 | } |
| 234 | |
| 235 | // Note: clear() and remove() affects both local and global preferences. |
| 236 | @Override |
| 237 | public Editor clear() { |
| 238 | mEditorGlobal.clear(); |
| 239 | mEditorLocal.clear(); |
| 240 | return this; |
| 241 | } |
| 242 | |
| 243 | @Override |
| 244 | public Editor remove(String key) { |
| 245 | mEditorGlobal.remove(key); |
| 246 | mEditorLocal.remove(key); |
| 247 | return this; |
| 248 | } |
| 249 | |
| 250 | @Override |
| 251 | public Editor putString(String key, String value) { |
| 252 | if (isGlobal(key)) { |
| 253 | mEditorGlobal.putString(key, value); |
| 254 | } else { |
| 255 | mEditorLocal.putString(key, value); |
| 256 | } |
| 257 | return this; |
| 258 | } |
| 259 | |
| 260 | @Override |
| 261 | public Editor putInt(String key, int value) { |
| 262 | if (isGlobal(key)) { |
| 263 | mEditorGlobal.putInt(key, value); |
| 264 | } else { |
| 265 | mEditorLocal.putInt(key, value); |
| 266 | } |
| 267 | return this; |
| 268 | } |
| 269 | |
| 270 | @Override |
| 271 | public Editor putLong(String key, long value) { |
| 272 | if (isGlobal(key)) { |
| 273 | mEditorGlobal.putLong(key, value); |
| 274 | } else { |
| 275 | mEditorLocal.putLong(key, value); |
| 276 | } |
| 277 | return this; |
| 278 | } |
| 279 | |
| 280 | @Override |
| 281 | public Editor putFloat(String key, float value) { |
| 282 | if (isGlobal(key)) { |
| 283 | mEditorGlobal.putFloat(key, value); |
| 284 | } else { |
| 285 | mEditorLocal.putFloat(key, value); |
| 286 | } |
| 287 | return this; |
| 288 | } |
| 289 | |
| 290 | @Override |
| 291 | public Editor putBoolean(String key, boolean value) { |
| 292 | if (isGlobal(key)) { |
| 293 | mEditorGlobal.putBoolean(key, value); |
| 294 | } else { |
| 295 | mEditorLocal.putBoolean(key, value); |
| 296 | } |
| 297 | return this; |
| 298 | } |
| 299 | |
| 300 | // This method is not used. |
| 301 | @Override |
| 302 | public Editor putStringSet(String key, Set<String> values) { |
| 303 | throw new UnsupportedOperationException(); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | // Note the remove() and clear() of the returned Editor may not work as |
| 308 | // expected because it doesn't touch the global preferences at all. |
| 309 | @Override |
| 310 | public Editor edit() { |
| 311 | return new MyEditor(); |
| 312 | } |
| 313 | |
| 314 | @Override |
| 315 | public void registerOnSharedPreferenceChangeListener( |
| 316 | OnSharedPreferenceChangeListener listener) { |
| 317 | mListeners.add(listener); |
| 318 | } |
| 319 | |
| 320 | @Override |
| 321 | public void unregisterOnSharedPreferenceChangeListener( |
| 322 | OnSharedPreferenceChangeListener listener) { |
| 323 | mListeners.remove(listener); |
| 324 | } |
| 325 | |
| 326 | @Override |
| 327 | public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, |
| 328 | String key) { |
| 329 | for (OnSharedPreferenceChangeListener listener : mListeners) { |
| 330 | listener.onSharedPreferenceChanged(this, key); |
| 331 | } |
Doris Liu | 4e72c90 | 2013-02-07 12:32:42 -0800 | [diff] [blame] | 332 | BackupManager.dataChanged(mPackageName); |
Bobby Georgescu | 806e78b | 2013-04-01 14:31:40 -0700 | [diff] [blame] | 333 | UsageStatistics.onEvent("CameraSettingsChange", null, key); |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 334 | } |
| 335 | } |