mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-02-18 02:08:20 +00:00
ab2f808196
This allows support for easily setting up default layouts Bug: 277345535 Test: Presubmit Flag: N/A Change-Id: I1c089d60ac3f8add8d7e1060d343e04d30afe094
313 lines
12 KiB
Java
313 lines
12 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3;
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import android.annotation.TargetApi;
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import android.appwidget.AppWidgetManager;
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import android.content.ComponentName;
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import android.content.ContentProvider;
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import android.content.ContentProviderOperation;
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import android.content.ContentProviderResult;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.OperationApplicationException;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteQueryBuilder;
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import android.net.Uri;
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import android.os.Binder;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Process;
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import android.text.TextUtils;
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import android.util.Log;
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import com.android.launcher3.LauncherSettings.Favorites;
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import com.android.launcher3.config.FeatureFlags;
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import com.android.launcher3.model.ModelDbController;
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import com.android.launcher3.provider.LauncherDbUtils.SQLiteTransaction;
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import com.android.launcher3.widget.LauncherWidgetHolder;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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import java.util.ArrayList;
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public class LauncherProvider extends ContentProvider {
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private static final String TAG = "LauncherProvider";
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public static final String AUTHORITY = BuildConfig.APPLICATION_ID + ".settings";
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protected ModelDbController mModelDbController;
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/**
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* $ adb shell dumpsys activity provider com.android.launcher3
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*/
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@Override
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public void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
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LauncherAppState appState = LauncherAppState.getInstanceNoCreate();
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if (appState == null || !appState.getModel().isModelLoaded()) {
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return;
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}
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appState.getModel().dumpState("", fd, writer, args);
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}
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@Override
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public boolean onCreate() {
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if (FeatureFlags.IS_STUDIO_BUILD) {
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Log.d(TAG, "Launcher process started");
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}
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mModelDbController = new ModelDbController(getContext());
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// The content provider exists for the entire duration of the launcher main process and
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// is the first component to get created.
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MainProcessInitializer.initialize(getContext().getApplicationContext());
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return true;
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}
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@Override
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public String getType(Uri uri) {
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SqlArguments args = new SqlArguments(uri, null, null);
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if (TextUtils.isEmpty(args.where)) {
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return "vnd.android.cursor.dir/" + args.table;
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} else {
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return "vnd.android.cursor.item/" + args.table;
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}
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}
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@Override
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public Cursor query(Uri uri, String[] projection, String selection,
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String[] selectionArgs, String sortOrder) {
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SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
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SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
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qb.setTables(args.table);
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Cursor result = mModelDbController.query(
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args.table, projection, args.where, args.args, sortOrder);
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result.setNotificationUri(getContext().getContentResolver(), uri);
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return result;
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}
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private void reloadLauncherIfExternal() {
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if (Binder.getCallingPid() != Process.myPid()) {
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LauncherAppState app = LauncherAppState.getInstanceNoCreate();
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if (app != null) {
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app.getModel().forceReload();
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}
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}
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}
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@Override
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public Uri insert(Uri uri, ContentValues initialValues) {
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// In very limited cases, we support system|signature permission apps to modify the db.
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if (Binder.getCallingPid() != Process.myPid()) {
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if (!initializeExternalAdd(initialValues)) {
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return null;
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}
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}
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SqlArguments args = new SqlArguments(uri);
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int rowId = mModelDbController.insert(args.table, initialValues);
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if (rowId < 0) return null;
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uri = ContentUris.withAppendedId(uri, rowId);
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reloadLauncherIfExternal();
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return uri;
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}
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private boolean initializeExternalAdd(ContentValues values) {
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// 1. Ensure that externally added items have a valid item id
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int id = mModelDbController.generateNewItemId();
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values.put(LauncherSettings.Favorites._ID, id);
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// 2. In the case of an app widget, and if no app widget id is specified, we
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// attempt allocate and bind the widget.
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Integer itemType = values.getAsInteger(LauncherSettings.Favorites.ITEM_TYPE);
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if (itemType != null &&
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itemType.intValue() == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET &&
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!values.containsKey(LauncherSettings.Favorites.APPWIDGET_ID)) {
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final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(getContext());
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ComponentName cn = ComponentName.unflattenFromString(
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values.getAsString(Favorites.APPWIDGET_PROVIDER));
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if (cn != null) {
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LauncherWidgetHolder widgetHolder = LauncherWidgetHolder.newInstance(getContext());
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try {
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int appWidgetId = widgetHolder.allocateAppWidgetId();
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values.put(LauncherSettings.Favorites.APPWIDGET_ID, appWidgetId);
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if (!appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId,cn)) {
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widgetHolder.deleteAppWidgetId(appWidgetId);
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return false;
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}
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} catch (RuntimeException e) {
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Log.e(TAG, "Failed to initialize external widget", e);
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return false;
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} finally {
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// Necessary to destroy the holder to free up possible activity context
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widgetHolder.destroy();
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}
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} else {
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return false;
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}
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}
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return true;
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}
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@Override
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public int bulkInsert(Uri uri, ContentValues[] values) {
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SqlArguments args = new SqlArguments(uri);
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mModelDbController.bulkInsert(args.table, values);
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reloadLauncherIfExternal();
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return values.length;
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}
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@TargetApi(Build.VERSION_CODES.M)
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@Override
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public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations)
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throws OperationApplicationException {
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try (SQLiteTransaction t = mModelDbController.newTransaction()) {
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final int numOperations = operations.size();
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final ContentProviderResult[] results = new ContentProviderResult[numOperations];
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for (int i = 0; i < numOperations; i++) {
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ContentProviderOperation op = operations.get(i);
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results[i] = op.apply(this, results, i);
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}
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t.commit();
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reloadLauncherIfExternal();
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return results;
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}
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}
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@Override
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public int delete(Uri uri, String selection, String[] selectionArgs) {
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SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
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int count = mModelDbController.delete(args.table, args.where, args.args);
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if (count > 0) {
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reloadLauncherIfExternal();
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}
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return count;
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}
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@Override
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public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
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SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
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int count = mModelDbController.update(args.table, values, args.where, args.args);
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reloadLauncherIfExternal();
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return count;
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}
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@Override
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public Bundle call(String method, final String arg, final Bundle extras) {
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if (Binder.getCallingUid() != Process.myUid()) {
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return null;
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}
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switch (method) {
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case LauncherSettings.Settings.METHOD_CLEAR_EMPTY_DB_FLAG: {
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mModelDbController.clearEmptyDbFlag();
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return null;
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}
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case LauncherSettings.Settings.METHOD_DELETE_EMPTY_FOLDERS: {
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Bundle result = new Bundle();
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result.putIntArray(LauncherSettings.Settings.EXTRA_VALUE,
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mModelDbController.deleteEmptyFolders().toArray());
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return result;
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}
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case LauncherSettings.Settings.METHOD_NEW_ITEM_ID: {
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Bundle result = new Bundle();
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result.putInt(LauncherSettings.Settings.EXTRA_VALUE,
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mModelDbController.generateNewItemId());
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return result;
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}
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case LauncherSettings.Settings.METHOD_NEW_SCREEN_ID: {
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Bundle result = new Bundle();
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result.putInt(LauncherSettings.Settings.EXTRA_VALUE,
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mModelDbController.getNewScreenId());
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return result;
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}
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case LauncherSettings.Settings.METHOD_CREATE_EMPTY_DB: {
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mModelDbController.createEmptyDB();
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return null;
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}
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case LauncherSettings.Settings.METHOD_LOAD_DEFAULT_FAVORITES: {
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mModelDbController.loadDefaultFavoritesIfNecessary();
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return null;
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}
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case LauncherSettings.Settings.METHOD_REMOVE_GHOST_WIDGETS: {
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mModelDbController.removeGhostWidgets();
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return null;
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}
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case LauncherSettings.Settings.METHOD_NEW_TRANSACTION: {
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Bundle result = new Bundle();
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result.putBinder(LauncherSettings.Settings.EXTRA_VALUE,
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mModelDbController.newTransaction());
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return result;
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}
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case LauncherSettings.Settings.METHOD_REFRESH_HOTSEAT_RESTORE_TABLE: {
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mModelDbController.refreshHotseatRestoreTable();
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return null;
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}
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case LauncherSettings.Settings.METHOD_UPDATE_CURRENT_OPEN_HELPER: {
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Bundle result = new Bundle();
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result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE,
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mModelDbController.updateCurrentOpenHelper(arg /* dbFile */));
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return result;
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}
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case LauncherSettings.Settings.METHOD_PREP_FOR_PREVIEW: {
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Bundle result = new Bundle();
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result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE,
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mModelDbController.prepareForPreview(arg /* dbFile */));
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return result;
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}
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}
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return null;
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}
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static class SqlArguments {
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public final String table;
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public final String where;
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public final String[] args;
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SqlArguments(Uri url, String where, String[] args) {
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if (url.getPathSegments().size() == 1) {
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this.table = url.getPathSegments().get(0);
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this.where = where;
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this.args = args;
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} else if (url.getPathSegments().size() != 2) {
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throw new IllegalArgumentException("Invalid URI: " + url);
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} else if (!TextUtils.isEmpty(where)) {
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throw new UnsupportedOperationException("WHERE clause not supported: " + url);
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} else {
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this.table = url.getPathSegments().get(0);
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this.where = "_id=" + ContentUris.parseId(url);
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this.args = null;
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}
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}
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SqlArguments(Uri url) {
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if (url.getPathSegments().size() == 1) {
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table = url.getPathSegments().get(0);
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where = null;
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args = null;
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} else {
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throw new IllegalArgumentException("Invalid URI: " + url);
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}
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}
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}
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}
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