Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 android.view.textclassifier; |
| 18 | |
Abodunrinwa Toki | 88be5a6 | 2018-03-23 04:01:28 +0000 | [diff] [blame] | 19 | import android.annotation.NonNull; |
Abodunrinwa Toki | df61b03 | 2017-03-29 22:41:57 +0100 | [diff] [blame] | 20 | import android.annotation.Nullable; |
Jeff Sharkey | d86b8fe | 2017-06-02 17:36:26 -0600 | [diff] [blame] | 21 | import android.annotation.SystemService; |
Mathew Inwood | a570dee | 2018-08-17 14:56:00 +0100 | [diff] [blame] | 22 | import android.annotation.UnsupportedAppUsage; |
Tony Mak | fc37457 | 2019-03-05 14:46:24 +0000 | [diff] [blame] | 23 | import android.app.ActivityThread; |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 24 | import android.content.Context; |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 25 | import android.database.ContentObserver; |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 26 | import android.os.ServiceManager; |
Tony Mak | fc37457 | 2019-03-05 14:46:24 +0000 | [diff] [blame] | 27 | import android.provider.DeviceConfig; |
Matt Pape | 15769e2 | 2019-04-19 12:31:24 -0700 | [diff] [blame] | 28 | import android.provider.DeviceConfig.Properties; |
Abodunrinwa Toki | db8fc31 | 2018-02-26 21:37:51 +0000 | [diff] [blame] | 29 | import android.provider.Settings; |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 30 | import android.service.textclassifier.TextClassifierService; |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 31 | import android.view.textclassifier.TextClassifier.TextClassifierType; |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 32 | |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 33 | import com.android.internal.annotations.GuardedBy; |
Tony Mak | 751afc9 | 2019-04-02 18:23:54 +0100 | [diff] [blame] | 34 | import com.android.internal.annotations.VisibleForTesting; |
Tony Mak | f93e9e5 | 2018-07-16 14:46:29 +0200 | [diff] [blame] | 35 | import com.android.internal.util.IndentingPrintWriter; |
Abodunrinwa Toki | 43e0350 | 2017-01-13 13:46:33 -0800 | [diff] [blame] | 36 | import com.android.internal.util.Preconditions; |
| 37 | |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 38 | import java.lang.ref.WeakReference; |
| 39 | |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 40 | /** |
| 41 | * Interface to the text classification service. |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 42 | */ |
Jeff Sharkey | d86b8fe | 2017-06-02 17:36:26 -0600 | [diff] [blame] | 43 | @SystemService(Context.TEXT_CLASSIFICATION_SERVICE) |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 44 | public final class TextClassificationManager { |
| 45 | |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 46 | private static final String LOG_TAG = "TextClassificationManager"; |
| 47 | |
Abodunrinwa Toki | 0634af3 | 2019-04-04 13:10:59 +0100 | [diff] [blame^] | 48 | private static final TextClassificationConstants sDefaultSettings = |
| 49 | new TextClassificationConstants(() -> null); |
| 50 | |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 51 | private final Object mLock = new Object(); |
Abodunrinwa Toki | 88be5a6 | 2018-03-23 04:01:28 +0000 | [diff] [blame] | 52 | private final TextClassificationSessionFactory mDefaultSessionFactory = |
| 53 | classificationContext -> new TextClassificationSession( |
| 54 | classificationContext, getTextClassifier()); |
Abodunrinwa Toki | b89cf02 | 2017-02-06 19:53:22 +0000 | [diff] [blame] | 55 | |
Abodunrinwa Toki | 43e0350 | 2017-01-13 13:46:33 -0800 | [diff] [blame] | 56 | private final Context mContext; |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 57 | private final SettingsObserver mSettingsObserver; |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 58 | |
| 59 | @GuardedBy("mLock") |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 60 | @Nullable |
| 61 | private TextClassifier mCustomTextClassifier; |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 62 | @GuardedBy("mLock") |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 63 | @Nullable |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 64 | private TextClassifier mLocalTextClassifier; |
| 65 | @GuardedBy("mLock") |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 66 | @Nullable |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 67 | private TextClassifier mSystemTextClassifier; |
Abodunrinwa Toki | 88be5a6 | 2018-03-23 04:01:28 +0000 | [diff] [blame] | 68 | @GuardedBy("mLock") |
| 69 | private TextClassificationSessionFactory mSessionFactory; |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 70 | @GuardedBy("mLock") |
| 71 | private TextClassificationConstants mSettings; |
Abodunrinwa Toki | 43e0350 | 2017-01-13 13:46:33 -0800 | [diff] [blame] | 72 | |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 73 | /** @hide */ |
Abodunrinwa Toki | 43e0350 | 2017-01-13 13:46:33 -0800 | [diff] [blame] | 74 | public TextClassificationManager(Context context) { |
| 75 | mContext = Preconditions.checkNotNull(context); |
Abodunrinwa Toki | 88be5a6 | 2018-03-23 04:01:28 +0000 | [diff] [blame] | 76 | mSessionFactory = mDefaultSessionFactory; |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 77 | mSettingsObserver = new SettingsObserver(this); |
Abodunrinwa Toki | 43e0350 | 2017-01-13 13:46:33 -0800 | [diff] [blame] | 78 | } |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 79 | |
Abodunrinwa Toki | df61b03 | 2017-03-29 22:41:57 +0100 | [diff] [blame] | 80 | /** |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 81 | * Returns the text classifier that was set via {@link #setTextClassifier(TextClassifier)}. |
| 82 | * If this is null, this method returns a default text classifier (i.e. either the system text |
Tony Mak | 31ff135 | 2019-01-22 21:26:05 +0000 | [diff] [blame] | 83 | * classifier if one exists, or a local text classifier running in this process.) |
| 84 | * <p> |
Abodunrinwa Toki | 324572e | 2019-02-12 19:01:01 +0000 | [diff] [blame] | 85 | * Note that requests to the TextClassifier may be handled in an OEM-provided process rather |
| 86 | * than in the calling app's process. |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 87 | * |
| 88 | * @see #setTextClassifier(TextClassifier) |
Abodunrinwa Toki | df61b03 | 2017-03-29 22:41:57 +0100 | [diff] [blame] | 89 | */ |
Abodunrinwa Toki | 88be5a6 | 2018-03-23 04:01:28 +0000 | [diff] [blame] | 90 | @NonNull |
Abodunrinwa Toki | df61b03 | 2017-03-29 22:41:57 +0100 | [diff] [blame] | 91 | public TextClassifier getTextClassifier() { |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 92 | synchronized (mLock) { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 93 | if (mCustomTextClassifier != null) { |
| 94 | return mCustomTextClassifier; |
| 95 | } else if (isSystemTextClassifierEnabled()) { |
| 96 | return getSystemTextClassifier(); |
| 97 | } else { |
| 98 | return getLocalTextClassifier(); |
Abodunrinwa Toki | 43e0350 | 2017-01-13 13:46:33 -0800 | [diff] [blame] | 99 | } |
Abodunrinwa Toki | df61b03 | 2017-03-29 22:41:57 +0100 | [diff] [blame] | 100 | } |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Sets the text classifier. |
| 105 | * Set to null to use the system default text classifier. |
| 106 | * Set to {@link TextClassifier#NO_OP} to disable text classifier features. |
| 107 | */ |
| 108 | public void setTextClassifier(@Nullable TextClassifier textClassifier) { |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 109 | synchronized (mLock) { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 110 | mCustomTextClassifier = textClassifier; |
Abodunrinwa Toki | 43e0350 | 2017-01-13 13:46:33 -0800 | [diff] [blame] | 111 | } |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 112 | } |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 113 | |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 114 | /** |
| 115 | * Returns a specific type of text classifier. |
| 116 | * If the specified text classifier cannot be found, this returns {@link TextClassifier#NO_OP}. |
| 117 | * |
| 118 | * @see TextClassifier#LOCAL |
| 119 | * @see TextClassifier#SYSTEM |
| 120 | * @hide |
| 121 | */ |
Mathew Inwood | a570dee | 2018-08-17 14:56:00 +0100 | [diff] [blame] | 122 | @UnsupportedAppUsage |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 123 | public TextClassifier getTextClassifier(@TextClassifierType int type) { |
| 124 | switch (type) { |
| 125 | case TextClassifier.LOCAL: |
| 126 | return getLocalTextClassifier(); |
| 127 | default: |
| 128 | return getSystemTextClassifier(); |
| 129 | } |
| 130 | } |
| 131 | |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 132 | private TextClassificationConstants getSettings() { |
| 133 | synchronized (mLock) { |
| 134 | if (mSettings == null) { |
Abodunrinwa Toki | 0634af3 | 2019-04-04 13:10:59 +0100 | [diff] [blame^] | 135 | mSettings = new TextClassificationConstants( |
| 136 | () -> Settings.Global.getString( |
| 137 | getApplicationContext().getContentResolver(), |
| 138 | Settings.Global.TEXT_CLASSIFIER_CONSTANTS)); |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 139 | } |
| 140 | return mSettings; |
| 141 | } |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 142 | } |
| 143 | |
Abodunrinwa Toki | 88be5a6 | 2018-03-23 04:01:28 +0000 | [diff] [blame] | 144 | /** |
| 145 | * Call this method to start a text classification session with the given context. |
| 146 | * A session is created with a context helping the classifier better understand |
| 147 | * what the user needs and consists of queries and feedback events. The queries |
| 148 | * are directly related to providing useful functionality to the user and the events |
| 149 | * are a feedback loop back to the classifier helping it learn and better serve |
| 150 | * future queries. |
| 151 | * |
| 152 | * <p> All interactions with the returned classifier are considered part of a single |
| 153 | * session and are logically grouped. For example, when a text widget is focused |
| 154 | * all user interactions around text editing (selection, editing, etc) can be |
| 155 | * grouped together to allow the classifier get better. |
| 156 | * |
| 157 | * @param classificationContext The context in which classification would occur |
| 158 | * |
| 159 | * @return An instance to perform classification in the given context |
| 160 | */ |
| 161 | @NonNull |
| 162 | public TextClassifier createTextClassificationSession( |
| 163 | @NonNull TextClassificationContext classificationContext) { |
| 164 | Preconditions.checkNotNull(classificationContext); |
| 165 | final TextClassifier textClassifier = |
| 166 | mSessionFactory.createTextClassificationSession(classificationContext); |
| 167 | Preconditions.checkNotNull(textClassifier, "Session Factory should never return null"); |
| 168 | return textClassifier; |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * @see #createTextClassificationSession(TextClassificationContext, TextClassifier) |
| 173 | * @hide |
| 174 | */ |
| 175 | public TextClassifier createTextClassificationSession( |
| 176 | TextClassificationContext classificationContext, TextClassifier textClassifier) { |
| 177 | Preconditions.checkNotNull(classificationContext); |
| 178 | Preconditions.checkNotNull(textClassifier); |
| 179 | return new TextClassificationSession(classificationContext, textClassifier); |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Sets a TextClassificationSessionFactory to be used to create session-aware TextClassifiers. |
| 184 | * |
| 185 | * @param factory the textClassification session factory. If this is null, the default factory |
| 186 | * will be used. |
| 187 | */ |
| 188 | public void setTextClassificationSessionFactory( |
| 189 | @Nullable TextClassificationSessionFactory factory) { |
| 190 | synchronized (mLock) { |
| 191 | if (factory != null) { |
| 192 | mSessionFactory = factory; |
| 193 | } else { |
| 194 | mSessionFactory = mDefaultSessionFactory; |
| 195 | } |
| 196 | } |
| 197 | } |
| 198 | |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 199 | @Override |
| 200 | protected void finalize() throws Throwable { |
| 201 | try { |
| 202 | // Note that fields could be null if the constructor threw. |
Michael Wright | b112f26 | 2018-05-24 13:41:50 +0100 | [diff] [blame] | 203 | if (mSettingsObserver != null) { |
| 204 | getApplicationContext().getContentResolver() |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 205 | .unregisterContentObserver(mSettingsObserver); |
John Reck | bcc0b91 | 2019-03-29 14:49:05 -0700 | [diff] [blame] | 206 | if (ConfigParser.ENABLE_DEVICE_CONFIG) { |
Matt Pape | 15769e2 | 2019-04-19 12:31:24 -0700 | [diff] [blame] | 207 | DeviceConfig.removeOnPropertiesChangedListener(mSettingsObserver); |
John Reck | bcc0b91 | 2019-03-29 14:49:05 -0700 | [diff] [blame] | 208 | } |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 209 | } |
| 210 | } finally { |
| 211 | super.finalize(); |
| 212 | } |
| 213 | } |
| 214 | |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 215 | private TextClassifier getSystemTextClassifier() { |
| 216 | synchronized (mLock) { |
| 217 | if (mSystemTextClassifier == null && isSystemTextClassifierEnabled()) { |
| 218 | try { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 219 | mSystemTextClassifier = new SystemTextClassifier(mContext, getSettings()); |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 220 | Log.d(LOG_TAG, "Initialized SystemTextClassifier"); |
| 221 | } catch (ServiceManager.ServiceNotFoundException e) { |
| 222 | Log.e(LOG_TAG, "Could not initialize SystemTextClassifier", e); |
| 223 | } |
| 224 | } |
| 225 | } |
| 226 | if (mSystemTextClassifier != null) { |
| 227 | return mSystemTextClassifier; |
| 228 | } |
| 229 | return TextClassifier.NO_OP; |
| 230 | } |
| 231 | |
Tony Mak | 31ff135 | 2019-01-22 21:26:05 +0000 | [diff] [blame] | 232 | /** |
| 233 | * Returns a local textclassifier, which is running in this process. |
Tony Mak | 31ff135 | 2019-01-22 21:26:05 +0000 | [diff] [blame] | 234 | */ |
| 235 | @NonNull |
Abodunrinwa Toki | 324572e | 2019-02-12 19:01:01 +0000 | [diff] [blame] | 236 | private TextClassifier getLocalTextClassifier() { |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 237 | synchronized (mLock) { |
| 238 | if (mLocalTextClassifier == null) { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 239 | if (getSettings().isLocalTextClassifierEnabled()) { |
Abodunrinwa Toki | 253827f | 2018-04-24 19:19:48 +0100 | [diff] [blame] | 240 | mLocalTextClassifier = |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 241 | new TextClassifierImpl(mContext, getSettings(), TextClassifier.NO_OP); |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 242 | } else { |
| 243 | Log.d(LOG_TAG, "Local TextClassifier disabled"); |
Abodunrinwa Toki | 253827f | 2018-04-24 19:19:48 +0100 | [diff] [blame] | 244 | mLocalTextClassifier = TextClassifier.NO_OP; |
Abodunrinwa Toki | c7073a4 | 2018-02-28 23:02:13 +0000 | [diff] [blame] | 245 | } |
| 246 | } |
| 247 | return mLocalTextClassifier; |
| 248 | } |
| 249 | } |
| 250 | |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 251 | private boolean isSystemTextClassifierEnabled() { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 252 | return getSettings().isSystemTextClassifierEnabled() |
Abodunrinwa Toki | d32906c | 2018-01-18 04:34:44 -0800 | [diff] [blame] | 253 | && TextClassifierService.getServiceComponentName(mContext) != null; |
| 254 | } |
Abodunrinwa Toki | db8fc31 | 2018-02-26 21:37:51 +0000 | [diff] [blame] | 255 | |
Tony Mak | 751afc9 | 2019-04-02 18:23:54 +0100 | [diff] [blame] | 256 | /** @hide */ |
| 257 | @VisibleForTesting |
Abodunrinwa Toki | 0634af3 | 2019-04-04 13:10:59 +0100 | [diff] [blame^] | 258 | public void invalidateForTesting() { |
| 259 | invalidate(); |
| 260 | } |
| 261 | |
| 262 | private void invalidate() { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 263 | synchronized (mLock) { |
| 264 | mSettings = null; |
| 265 | mLocalTextClassifier = null; |
| 266 | mSystemTextClassifier = null; |
| 267 | } |
| 268 | } |
| 269 | |
Michael Wright | b112f26 | 2018-05-24 13:41:50 +0100 | [diff] [blame] | 270 | Context getApplicationContext() { |
| 271 | return mContext.getApplicationContext() != null |
| 272 | ? mContext.getApplicationContext() |
| 273 | : mContext; |
| 274 | } |
| 275 | |
Tony Mak | f93e9e5 | 2018-07-16 14:46:29 +0200 | [diff] [blame] | 276 | /** @hide **/ |
| 277 | public void dump(IndentingPrintWriter pw) { |
| 278 | getLocalTextClassifier().dump(pw); |
| 279 | getSystemTextClassifier().dump(pw); |
| 280 | getSettings().dump(pw); |
| 281 | } |
| 282 | |
Abodunrinwa Toki | db8fc31 | 2018-02-26 21:37:51 +0000 | [diff] [blame] | 283 | /** @hide */ |
| 284 | public static TextClassificationConstants getSettings(Context context) { |
| 285 | Preconditions.checkNotNull(context); |
| 286 | final TextClassificationManager tcm = |
| 287 | context.getSystemService(TextClassificationManager.class); |
| 288 | if (tcm != null) { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 289 | return tcm.getSettings(); |
Abodunrinwa Toki | db8fc31 | 2018-02-26 21:37:51 +0000 | [diff] [blame] | 290 | } else { |
Abodunrinwa Toki | 0634af3 | 2019-04-04 13:10:59 +0100 | [diff] [blame^] | 291 | // Use default settings if there is no tcm. |
| 292 | return sDefaultSettings; |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 293 | } |
| 294 | } |
| 295 | |
Tony Mak | fc37457 | 2019-03-05 14:46:24 +0000 | [diff] [blame] | 296 | private static final class SettingsObserver extends ContentObserver |
Matt Pape | 15769e2 | 2019-04-19 12:31:24 -0700 | [diff] [blame] | 297 | implements DeviceConfig.OnPropertiesChangedListener { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 298 | |
| 299 | private final WeakReference<TextClassificationManager> mTcm; |
| 300 | |
| 301 | SettingsObserver(TextClassificationManager tcm) { |
| 302 | super(null); |
| 303 | mTcm = new WeakReference<>(tcm); |
Michael Wright | b112f26 | 2018-05-24 13:41:50 +0100 | [diff] [blame] | 304 | tcm.getApplicationContext().getContentResolver().registerContentObserver( |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 305 | Settings.Global.getUriFor(Settings.Global.TEXT_CLASSIFIER_CONSTANTS), |
| 306 | false /* notifyForDescendants */, |
| 307 | this); |
John Reck | bcc0b91 | 2019-03-29 14:49:05 -0700 | [diff] [blame] | 308 | if (ConfigParser.ENABLE_DEVICE_CONFIG) { |
Matt Pape | 15769e2 | 2019-04-19 12:31:24 -0700 | [diff] [blame] | 309 | DeviceConfig.addOnPropertiesChangedListener( |
John Reck | bcc0b91 | 2019-03-29 14:49:05 -0700 | [diff] [blame] | 310 | DeviceConfig.NAMESPACE_TEXTCLASSIFIER, |
| 311 | ActivityThread.currentApplication().getMainExecutor(), |
| 312 | this); |
| 313 | } |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | @Override |
| 317 | public void onChange(boolean selfChange) { |
Tony Mak | fc37457 | 2019-03-05 14:46:24 +0000 | [diff] [blame] | 318 | invalidateSettings(); |
| 319 | } |
| 320 | |
| 321 | @Override |
Matt Pape | 15769e2 | 2019-04-19 12:31:24 -0700 | [diff] [blame] | 322 | public void onPropertiesChanged(Properties properties) { |
Tony Mak | fc37457 | 2019-03-05 14:46:24 +0000 | [diff] [blame] | 323 | invalidateSettings(); |
| 324 | } |
| 325 | |
| 326 | private void invalidateSettings() { |
Abodunrinwa Toki | c2449b8 | 2018-05-01 21:36:48 +0100 | [diff] [blame] | 327 | final TextClassificationManager tcm = mTcm.get(); |
| 328 | if (tcm != null) { |
| 329 | tcm.invalidate(); |
| 330 | } |
Abodunrinwa Toki | db8fc31 | 2018-02-26 21:37:51 +0000 | [diff] [blame] | 331 | } |
| 332 | } |
Abodunrinwa Toki | f001fef | 2017-01-04 23:51:42 +0000 | [diff] [blame] | 333 | } |