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| 1 /* | |
| 2 * This file is part of Adblock Plus <https://adblockplus.org/>, | |
| 3 * Copyright (C) 2006-present eyeo GmbH | |
| 4 * | |
| 5 * Adblock Plus is free software: you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License version 3 as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * Adblock Plus is distributed in the hope that it will be useful, | |
| 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 * GNU General Public License for more details. | |
| 13 * | |
| 14 * You should have received a copy of the GNU General Public License | |
| 15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. | |
| 16 */ | |
| 17 | |
| 18 package org.adblockplus.libadblockplus.android.settings; | |
| 19 | |
| 20 import android.content.Context; | |
| 21 import android.content.SharedPreferences; | |
| 22 import android.util.Log; | |
| 23 | |
| 24 import org.adblockplus.libadblockplus.android.AdblockEngine; | |
| 25 import org.adblockplus.libadblockplus.android.AdblockEngineProvider; | |
| 26 import org.adblockplus.libadblockplus.android.SingleInstanceEngineProvider; | |
| 27 import org.adblockplus.libadblockplus.android.Utils; | |
| 28 | |
| 29 /** | |
| 30 * AdblockHelper shared resources | |
| 31 * (singleton) | |
| 32 */ | |
| 33 public class AdblockHelper | |
| 34 { | |
| 35 private static final String TAG = Utils.getTag(AdblockHelper.class); | |
| 36 | |
| 37 /** | |
| 38 * Suggested preference name to store settings | |
| 39 */ | |
| 40 public static final String PREFERENCE_NAME = "ADBLOCK"; | |
| 41 | |
| 42 /** | |
| 43 * Suggested preference name to store intercepted subscription requests | |
| 44 */ | |
| 45 public static final String PRELOAD_PREFERENCE_NAME = "ADBLOCK_PRELOAD"; | |
| 46 private static AdblockHelper _instance; | |
| 47 | |
| 48 private SingleInstanceEngineProvider provider; | |
| 49 private AdblockSettingsStorage storage; | |
| 50 | |
| 51 private final Runnable engineCreatedCallback = new Runnable() | |
| 52 { | |
| 53 @Override | |
| 54 public void run() | |
| 55 { | |
| 56 AdblockSettings settings = storage.load(); | |
| 57 if (settings != null) | |
| 58 { | |
| 59 Log.d(TAG, "Applying saved adblock settings to adblock engine"); | |
| 60 // apply last saved settings to adblock engine. | |
| 61 // all the settings except `enabled` and whitelisted domains list | |
| 62 // are saved by adblock engine itself | |
| 63 provider.getEngine().setEnabled(settings.isAdblockEnabled()); | |
| 64 provider.getEngine().setWhitelistedDomains(settings.getWhitelistedDomain
s()); | |
| 65 | |
| 66 // allowed connection type is saved by filter engine but we need to over
ride it | |
| 67 // as filter engine can be not created when changing | |
| 68 String connectionType = (settings.getAllowedConnectionType() != null | |
| 69 ? settings.getAllowedConnectionType().getValue() | |
| 70 : null); | |
| 71 provider.getEngine().getFilterEngine().setAllowedConnectionType(connecti
onType); | |
| 72 } | |
| 73 else | |
| 74 { | |
| 75 Log.w(TAG, "No saved adblock settings"); | |
| 76 } | |
| 77 } | |
| 78 }; | |
| 79 | |
| 80 private final Runnable engineDisposedCallback = new Runnable() | |
| 81 { | |
| 82 @Override | |
| 83 public void run() | |
| 84 { | |
| 85 Log.d(TAG, "Releasing adblock settings storage"); | |
| 86 storage = null; | |
| 87 } | |
| 88 }; | |
| 89 | |
| 90 // singleton | |
| 91 protected AdblockHelper() | |
| 92 { | |
| 93 // prevents instantiation | |
| 94 } | |
| 95 | |
| 96 /** | |
| 97 * Use to get AdblockHelper instance | |
| 98 * @return adblock instance | |
| 99 */ | |
| 100 public static synchronized AdblockHelper get() | |
| 101 { | |
| 102 if (_instance == null) | |
| 103 { | |
| 104 _instance = new AdblockHelper(); | |
| 105 } | |
| 106 | |
| 107 return _instance; | |
| 108 } | |
| 109 | |
| 110 public AdblockEngineProvider getProvider() | |
| 111 { | |
| 112 if (provider == null) | |
| 113 { | |
| 114 throw new IllegalStateException("Usage exception: call init(...) first"); | |
| 115 } | |
| 116 return provider; | |
| 117 } | |
| 118 | |
| 119 public AdblockSettingsStorage getStorage() | |
| 120 { | |
| 121 if (storage == null) | |
| 122 { | |
| 123 throw new IllegalStateException("Usage exception: call init(...) first"); | |
| 124 } | |
| 125 return storage; | |
| 126 } | |
| 127 | |
| 128 /** | |
| 129 * Init with context | |
| 130 * @param context application context | |
| 131 * @param basePath file system root to store files | |
| 132 * | |
| 133 * Adblock Plus library will download subscription files and s
tore them on | |
| 134 * the path passed. The path should exist and the directory co
ntent should not be | |
| 135 * cleared out occasionally. Using `context.getCacheDir().getA
bsolutePath()` is not | |
| 136 * recommended because it can be cleared by the system. | |
| 137 * @param developmentBuild debug or release? | |
| 138 * @param preferenceName Shared Preferences name to store adblock settings | |
| 139 */ | |
| 140 public SingleInstanceEngineProvider init(Context context, String basePath, | |
| 141 boolean developmentBuild, String pref
erenceName) | |
| 142 { | |
| 143 initProvider(context, basePath, developmentBuild); | |
| 144 initStorage(context, preferenceName); | |
| 145 return provider; | |
| 146 } | |
| 147 | |
| 148 private void initProvider(Context context, String basePath, boolean developmen
tBuild) | |
| 149 { | |
| 150 provider = new SingleInstanceEngineProvider(context, basePath, developmentBu
ild); | |
| 151 provider.setEngineCreatedCallback(engineCreatedCallback); | |
| 152 provider.setEngineDisposedCallback(engineDisposedCallback); | |
| 153 } | |
| 154 | |
| 155 private void initStorage(Context context, String settingsPreferenceName) | |
| 156 { | |
| 157 // read and apply current settings | |
| 158 SharedPreferences settingsPrefs = context.getSharedPreferences( | |
| 159 settingsPreferenceName, | |
| 160 Context.MODE_PRIVATE); | |
| 161 | |
| 162 storage = new SharedPrefsStorage(settingsPrefs); | |
| 163 } | |
| 164 | |
| 165 /** | |
| 166 * @deprecated The method is deprecated: use .getProvider().retain() instead | |
| 167 */ | |
| 168 @Deprecated | |
| 169 public boolean retain(boolean asynchronous) | |
| 170 { | |
| 171 return provider.retain(asynchronous); | |
| 172 } | |
| 173 | |
| 174 /** | |
| 175 * @deprecated The method is deprecated: use .getProvider().waitForReady() ins
tead | |
| 176 */ | |
| 177 @Deprecated | |
| 178 public void waitForReady() | |
| 179 { | |
| 180 provider.waitForReady(); | |
| 181 } | |
| 182 | |
| 183 /** | |
| 184 * @deprecated The method is deprecated: use .getProvider().getEngine() instea
d | |
| 185 */ | |
| 186 @Deprecated | |
| 187 public AdblockEngine getEngine() | |
| 188 { | |
| 189 return provider.getEngine(); | |
| 190 } | |
| 191 | |
| 192 /** | |
| 193 * @deprecated The method is deprecated: use .getProvider().release() instead | |
| 194 */ | |
| 195 @Deprecated | |
| 196 public boolean release() | |
| 197 { | |
| 198 return provider.release(); | |
| 199 } | |
| 200 | |
| 201 /** | |
| 202 * @deprecated The method is deprecated: use .getProvider().getCounter() inste
ad | |
| 203 */ | |
| 204 @Deprecated | |
| 205 public int getCounter() | |
| 206 { | |
| 207 return provider.getCounter(); | |
| 208 } | |
| 209 } | |
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