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/*
* Copyright (C) 2019 The LineageOS 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.launcher3.lineage.hidden.db;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
public class HiddenDatabaseHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
private static final String DATABSE_NAME = "hidden_apps_db";
private static final String TABLE_NAME = "hidden_apps";
private static final String KEY_UID = "uid";
private static final String KEY_PKGNAME = "pkgname";
@Nullable
private static HiddenDatabaseHelper sSingleton;
private HiddenDatabaseHelper(@NonNull Context context) {
super(context, DATABSE_NAME, null, DATABASE_VERSION);
}
public static synchronized HiddenDatabaseHelper getInstance(@NonNull Context context) {
if (sSingleton == null) {
sSingleton = new HiddenDatabaseHelper(context);
}
return sSingleton;
}
@Override
public void onCreate(SQLiteDatabase db) {
String CMD_CREATE_TABLE = "CREATE TABLE " + TABLE_NAME +
"(" +
KEY_UID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
KEY_PKGNAME + " TEXT" +
")";
db.execSQL(CMD_CREATE_TABLE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
public void addApp(@NonNull String packageName) {
if (isPackageHidden(packageName)) {
return;
}
SQLiteDatabase db = getWritableDatabase();
db.beginTransaction();
try {
ContentValues values = new ContentValues();
values.put(KEY_PKGNAME, packageName);
db.insertOrThrow(TABLE_NAME, null, values);
db.setTransactionSuccessful();
} catch (Exception e) {
// Ignored
} finally {
db.endTransaction();
}
}
public void removeApp(@NonNull String packageName) {
if (!isPackageHidden(packageName)) {
return;
}
SQLiteDatabase db = getWritableDatabase();
db.beginTransaction();
try {
db.delete(TABLE_NAME, KEY_PKGNAME + "=?", new String[]{packageName});
db.setTransactionSuccessful();
} catch (Exception e) {
// Ignored
} finally {
db.endTransaction();
}
}
public boolean isPackageHidden(@NonNull String packageName) {
String query = String.format("SELECT * FROM %s WHERE %s = ?", TABLE_NAME, KEY_PKGNAME);
SQLiteDatabase db = getReadableDatabase();
Cursor cursor = db.rawQuery(query, new String[]{packageName});
boolean result = false;
try {
result = cursor.getCount() != 0;
} catch (Exception e) {
// Ignored
} finally {
if (cursor != null && !cursor.isClosed()) {
cursor.close();
}
}
return result;
}
}
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