| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.provider; |
| |
| import java.util.Locale; |
| |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.net.Uri; |
| import android.text.TextUtils; |
| |
| /** |
| * A provider of user defined words for input methods to use for predictive text input. |
| * Applications and input methods may add words into the dictionary. Words can have associated |
| * frequency information and locale information. |
| */ |
| public class UserDictionary { |
| |
| /** Authority string for this provider. */ |
| public static final String AUTHORITY = "user_dictionary"; |
| |
| /** |
| * The content:// style URL for this provider |
| */ |
| public static final Uri CONTENT_URI = |
| Uri.parse("content://" + AUTHORITY); |
| |
| /** |
| * Contains the user defined words. |
| */ |
| public static class Words implements BaseColumns { |
| /** |
| * The content:// style URL for this table |
| */ |
| public static final Uri CONTENT_URI = |
| Uri.parse("content://" + AUTHORITY + "/words"); |
| |
| /** |
| * The MIME type of {@link #CONTENT_URI} providing a directory of words. |
| */ |
| public static final String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.google.userword"; |
| |
| /** |
| * The MIME type of a {@link #CONTENT_URI} sub-directory of a single word. |
| */ |
| public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.google.userword"; |
| |
| public static final String _ID = BaseColumns._ID; |
| |
| /** |
| * The word column. |
| * <p>TYPE: TEXT</p> |
| */ |
| public static final String WORD = "word"; |
| |
| /** |
| * The frequency column. A value between 1 and 255. Higher values imply higher frequency. |
| * <p>TYPE: INTEGER</p> |
| */ |
| public static final String FREQUENCY = "frequency"; |
| |
| /** |
| * The locale that this word belongs to. Null if it pertains to all |
| * locales. Locale is as defined by the string returned by Locale.toString(). |
| * <p>TYPE: TEXT</p> |
| */ |
| public static final String LOCALE = "locale"; |
| |
| /** |
| * The uid of the application that inserted the word. |
| * <p>TYPE: INTEGER</p> |
| */ |
| public static final String APP_ID = "appid"; |
| |
| /** The locale type to specify that the word is common to all locales. */ |
| public static final int LOCALE_TYPE_ALL = 0; |
| |
| /** The locale type to specify that the word is for the current locale. */ |
| public static final int LOCALE_TYPE_CURRENT = 1; |
| |
| /** |
| * Sort by descending order of frequency. |
| */ |
| public static final String DEFAULT_SORT_ORDER = FREQUENCY + " DESC"; |
| |
| /** Adds a word to the dictionary, with the given frequency and the specified |
| * specified locale type. |
| * @param context the current application context |
| * @param word the word to add to the dictionary. This should not be null or |
| * empty. |
| * @param localeType the locale type for this word. It should be one of |
| * {@link #LOCALE_TYPE_ALL} or {@link #LOCALE_TYPE_CURRENT}. |
| */ |
| public static void addWord(Context context, String word, |
| int frequency, int localeType) { |
| final ContentResolver resolver = context.getContentResolver(); |
| |
| if (TextUtils.isEmpty(word) || localeType < 0 || localeType > 1) { |
| return; |
| } |
| |
| if (frequency < 0) frequency = 0; |
| if (frequency > 255) frequency = 255; |
| |
| String locale = null; |
| |
| // TODO: Verify if this is the best way to get the current locale |
| if (localeType == LOCALE_TYPE_CURRENT) { |
| locale = Locale.getDefault().toString(); |
| } |
| ContentValues values = new ContentValues(4); |
| |
| values.put(WORD, word); |
| values.put(FREQUENCY, frequency); |
| values.put(LOCALE, locale); |
| values.put(APP_ID, 0); // TODO: Get App UID |
| |
| Uri result = resolver.insert(CONTENT_URI, values); |
| // It's ok if the insert doesn't succeed because the word |
| // already exists. |
| } |
| } |
| } |