From 8533a8f88d7acdf7db347af14a5503a4cbbe9df3 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Wed, 29 Apr 2009 17:39:09 -0700 Subject: import all files from p4 --- .../applications/ApplicationLauncher.java | 59 ++++ .../applications/ApplicationsProvider.java | 339 +++++++++++++++++++++ 2 files changed, 398 insertions(+) create mode 100644 src/com/android/providers/applications/ApplicationLauncher.java create mode 100644 src/com/android/providers/applications/ApplicationsProvider.java (limited to 'src/com') diff --git a/src/com/android/providers/applications/ApplicationLauncher.java b/src/com/android/providers/applications/ApplicationLauncher.java new file mode 100644 index 0000000..8463fb6 --- /dev/null +++ b/src/com/android/providers/applications/ApplicationLauncher.java @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2009 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 com.android.providers.applications; + +import android.app.Activity; +import android.content.ComponentName; +import android.content.Intent; +import android.net.Uri; +import android.os.Bundle; +import android.util.Log; + +/** + * This class is purely here to get launch intents. + */ +public class ApplicationLauncher extends Activity { + private static final String TAG = ApplicationLauncher.class.getSimpleName(); + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + Intent intent = getIntent(); + boolean handled = false; + if (intent != null) { + String action = intent.getAction(); + if (Intent.ACTION_MAIN.equals(action)) { + // Launch the component given in the query string + Uri contentUri = intent.getData(); + ComponentName componentName = ApplicationsProvider.getComponentName(contentUri); + if (componentName != null) { + Intent launchIntent = new Intent(Intent.ACTION_MAIN); + launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | + Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); + launchIntent.setComponent(componentName); + startActivity(launchIntent); + handled = true; + } + } + } + if (!handled) { + Log.w(TAG, "Unhandled intent: " + intent); + } + finish(); + } + +} diff --git a/src/com/android/providers/applications/ApplicationsProvider.java b/src/com/android/providers/applications/ApplicationsProvider.java new file mode 100644 index 0000000..11e5d4a --- /dev/null +++ b/src/com/android/providers/applications/ApplicationsProvider.java @@ -0,0 +1,339 @@ +/* + * Copyright (C) 2009 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 com.android.providers.applications; + +import android.app.SearchManager; +import android.content.BroadcastReceiver; +import android.content.ComponentName; +import android.content.ContentProvider; +import android.content.ContentResolver; +import android.content.ContentValues; +import android.content.Context; +import android.content.Intent; +import android.content.IntentFilter; +import android.content.UriMatcher; +import android.content.pm.PackageManager; +import android.content.pm.ResolveInfo; +import android.database.Cursor; +import android.database.DatabaseUtils; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteQueryBuilder; +import android.net.Uri; +import android.provider.Applications; +import android.text.TextUtils; +import android.util.Log; + +import java.util.HashMap; +import java.util.List; + +/** + * Fetches the list of applications installed on the phone to provide search suggestions. + * If the functionality of this provider changes, the documentation at + * {@link android.provider.Applications} should be updated. + */ +public class ApplicationsProvider extends ContentProvider { + + private static final boolean DBG = false; + + private static final String TAG = "ApplicationsProvider"; + + private static final UriMatcher sURIMatcher = new UriMatcher(UriMatcher.NO_MATCH); + private static final int SEARCH_SUGGEST = 0; + + static { + sURIMatcher.addURI(Applications.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, + SEARCH_SUGGEST); + sURIMatcher.addURI(Applications.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", + SEARCH_SUGGEST); + }; + + // TODO: Move these to android.provider.Applications? + public static final String _ID = "_id"; + public static final String NAME = "name"; + public static final String DESCRIPTION = "description"; + public static final String PACKAGE = "package"; + public static final String CLASS = "class"; + public static final String ICON = "icon"; + + private static final String APPLICATIONS_TABLE = "applications"; + + private static final HashMap sSearchSuggestionsProjectionMap = + buildSuggestionsProjectionMap(); + + private SQLiteDatabase mDb; + + // Broadcast receiver for updating applications list. + private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { + @Override + public void onReceive(Context context, Intent intent) { + String action = intent.getAction(); + if (Intent.ACTION_PACKAGE_ADDED.equals(action) + || Intent.ACTION_PACKAGE_REMOVED.equals(action) + || Intent.ACTION_PACKAGE_CHANGED.equals(action)) { + // TODO: Instead of rebuilding the whole list on every change, + // just add, remove or update the application that has changed. + // Adding and updating seem tricky, since I can't see an easy way to list the + // launchable activities in a given package. + updateApplicationsList(); + } + } + }; + + @Override + public boolean onCreate() { + createDatabase(); + registerBroadcastReceiver(); + updateApplicationsList(); + return true; + } + + /** + * Creates an in-memory database for storing application info. + */ + private void createDatabase() { + mDb = SQLiteDatabase.create(null); + mDb.execSQL("CREATE TABLE IF NOT EXISTS " + APPLICATIONS_TABLE + " ("+ + _ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + + NAME + " TEXT COLLATE LOCALIZED," + + DESCRIPTION + " description TEXT," + + PACKAGE + " TEXT," + + CLASS + " TEXT," + + ICON + " TEXT" + + ");"); + // Needed for efficient update and remove + mDb.execSQL("CREATE INDEX applicationsComponentIndex ON " + APPLICATIONS_TABLE + " (" + + PACKAGE + "," + CLASS + ");"); + // Maps token from the app name to records in the applications table + mDb.execSQL("CREATE TABLE applicationsLookup (" + + "token TEXT," + + "source INTEGER REFERENCES " + APPLICATIONS_TABLE + "(" + _ID + ")" + + ");"); + mDb.execSQL("CREATE INDEX applicationsLookupIndex ON applicationsLookup (" + + "token," + + "source" + + ");"); + // Triggers to keep the applicationsLookup table up to date + mDb.execSQL("CREATE TRIGGER applicationsLookup_update UPDATE OF " + NAME + " ON " + + APPLICATIONS_TABLE + " " + + "BEGIN " + + "DELETE FROM applicationsLookup WHERE source = new." + _ID + ";" + + "SELECT _TOKENIZE('applicationsLookup', new." + _ID + ", new." + NAME + ", ' ');" + + "END"); + mDb.execSQL("CREATE TRIGGER applicationsLookup_insert AFTER INSERT ON " + + APPLICATIONS_TABLE + " " + + "BEGIN " + + "SELECT _TOKENIZE('applicationsLookup', new." + _ID + ", new." + NAME + ", ' ');" + + "END"); + mDb.execSQL("CREATE TRIGGER applicationsLookup_delete DELETE ON " + + APPLICATIONS_TABLE + " " + + "BEGIN " + + "DELETE FROM applicationsLookup WHERE source = old." + _ID + ";" + + "END"); + } + + /** + * Registers a receiver which will be notified when packages are added, removed, + * or changed. + */ + private void registerBroadcastReceiver() { + IntentFilter packageFilter = new IntentFilter(); + packageFilter.addAction(Intent.ACTION_PACKAGE_ADDED); + packageFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); + packageFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); + packageFilter.addDataScheme("package"); + getContext().registerReceiver(mBroadcastReceiver, packageFilter); + } + + /** + * This will always return {@link SearchManager#SUGGEST_MIME_TYPE} as this + * provider is purely to provide suggestions. + */ + @Override + public String getType(Uri uri) { + return SearchManager.SUGGEST_MIME_TYPE; + } + + /** + * Queries for a given search term and returns a cursor containing + * suggestions ordered by best match. + */ + @Override + public Cursor query(Uri uri, String[] projectionIn, String selection, + String[] selectionArgs, String sortOrder) { + + if (sURIMatcher.match(uri) != SEARCH_SUGGEST) { + throw new IllegalArgumentException("Unknown URL " + uri); + } + + // Get the search text + String query = null; + if (uri.getPathSegments().size() > 1) { + query = uri.getLastPathSegment().toLowerCase(); + } + if (TextUtils.isEmpty(query)) { + return null; + } + + // Build SQL query + SQLiteQueryBuilder qb = new SQLiteQueryBuilder(); + qb.setTables(APPLICATIONS_TABLE); + qb.setProjectionMap(sSearchSuggestionsProjectionMap); + qb.appendWhere(buildApplicationsLookupWhereClause(query)); + + Cursor cursor = qb.query(mDb, projectionIn, selection, selectionArgs, + null, null, sortOrder); + return cursor; + } + + // Stolen from ContactsProvider.buildPeopleLookupWhereClause(String) + @SuppressWarnings("deprecation") + private String buildApplicationsLookupWhereClause(String filterParam) { + StringBuilder filter = new StringBuilder( + APPLICATIONS_TABLE + "." + _ID + + " IN (SELECT source FROM applicationsLookup WHERE token GLOB "); + // NOTE: Query parameters won't work here since the SQL compiler + // needs to parse the actual string to know that it can use the + // index to do a prefix scan. + DatabaseUtils.appendEscapedSQLString(filter, + DatabaseUtils.getHexCollationKey(filterParam) + "*"); + filter.append(')'); + return filter.toString(); + } + + private static HashMap buildSuggestionsProjectionMap() { + HashMap map = new HashMap(); + map.put(_ID, _ID); + map.put(SearchManager.SUGGEST_COLUMN_TEXT_1, + NAME + " AS " + SearchManager.SUGGEST_COLUMN_TEXT_1); + map.put(SearchManager.SUGGEST_COLUMN_TEXT_2, + DESCRIPTION + " AS " + SearchManager.SUGGEST_COLUMN_TEXT_2); + map.put(SearchManager.SUGGEST_COLUMN_INTENT_DATA, + "'content://" + Applications.AUTHORITY + "/applications/'" + + " || " + PACKAGE + " || '/' || " + CLASS + + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA); + map.put(SearchManager.SUGGEST_COLUMN_ICON_1, + ICON + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1); + map.put(SearchManager.SUGGEST_COLUMN_ICON_2, + "NULL AS " + SearchManager.SUGGEST_COLUMN_ICON_2); + return map; + } + + /** + * Updates the cached list of installed applications. + */ + private void updateApplicationsList() { + if (DBG) Log.d(TAG, "Updating database..."); + + DatabaseUtils.InsertHelper inserter = + new DatabaseUtils.InsertHelper(mDb, APPLICATIONS_TABLE); + int nameCol = inserter.getColumnIndex(NAME); + int descriptionCol = inserter.getColumnIndex(DESCRIPTION); + int packageCol = inserter.getColumnIndex(PACKAGE); + int classCol = inserter.getColumnIndex(CLASS); + int iconCol = inserter.getColumnIndex(ICON); + + mDb.beginTransaction(); + try { + mDb.execSQL("DELETE FROM " + APPLICATIONS_TABLE); + String description = getContext().getString(R.string.application_desc); + // Iterate and find all the activities which have the LAUNCHER category set. + Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); + mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); + final PackageManager manager = getContext().getPackageManager(); + for (ResolveInfo info : manager.queryIntentActivities(mainIntent, 0)) { + String title = info.loadLabel(manager).toString(); + if (TextUtils.isEmpty(title)) { + title = info.activityInfo.name; + } + // Use a resource Uri for the icon. + String icon = new Uri.Builder() + .scheme(ContentResolver.SCHEME_ANDROID_RESOURCE) + .authority(info.activityInfo.applicationInfo.packageName) + .encodedPath(String.valueOf(info.activityInfo.getIconResource())) + .toString(); + inserter.prepareForInsert(); + inserter.bind(nameCol, title); + inserter.bind(descriptionCol, description); + inserter.bind(packageCol, info.activityInfo.applicationInfo.packageName); + inserter.bind(classCol, info.activityInfo.name); + inserter.bind(iconCol, icon); + inserter.execute(); + } + mDb.setTransactionSuccessful(); + } finally { + mDb.endTransaction(); + } + if (DBG) Log.d(TAG, "Finished updating database."); + } + + + @Override + public Uri insert(Uri uri, ContentValues values) { + throw new UnsupportedOperationException(); + } + + @Override + public int update(Uri uri, ContentValues values, String selection, + String[] selectionArgs) { + throw new UnsupportedOperationException(); + } + + @Override + public int delete(Uri uri, String selection, String[] selectionArgs) { + throw new UnsupportedOperationException(); + } + + /** + * Gets the application component name from an application URI. + * TODO: Move this to android.provider.Applications? + * + * @param appUri A URI of the form + * "content://applications/applications/<packageName>/<className>". + * @return The component name for the application, or + * null if the given URI was null + * or malformed. + */ + public static ComponentName getComponentName(Uri appUri) { + if (appUri == null) { + return null; + } + List pathSegments = appUri.getPathSegments(); + if (pathSegments.size() < 3) { + return null; + } + String packageName = pathSegments.get(1); + String name = pathSegments.get(2); + return new ComponentName(packageName, name); + } + + /** + * Gets the URI for an application. + * TODO: Move this to android.provider.Applications? + * + * @param packageName The name of the application's package. + * @param className The class name of the application. + * @return A URI of the form + * "content://applications/applications/<packageName>/<className>". + */ + public static Uri getUri(String packageName, String className) { + return Applications.CONTENT_URI.buildUpon() + .appendEncodedPath("applications") + .appendPath(packageName) + .appendPath(className) + .build(); + } +} -- cgit v1.2.3