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/*
* Copyright (C) 2015 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.usbtuner;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.AsyncTask;
import android.os.Bundle;
import com.android.tv.common.SoftPreconditions;
import com.android.usbtuner.UsbTunerPreferenceProvider.Preferences;
import com.android.usbtuner.util.TisConfiguration;
/**
* A helper class for the USB tuner preferences.
*/
// TODO: Change this class to run on the worker thread.
public class UsbTunerPreferences {
private static final String TAG = "UsbTunerPreferences";
private static final String PREFS_KEY_CHANNEL_DATA_VERSION = "channel_data_version";
private static final String PREFS_KEY_SCANNED_CHANNEL_COUNT = "scanned_channel_count";
private static final String PREFS_KEY_SCAN_DONE = "scan_done";
private static final String PREFS_KEY_LAUNCH_SETUP = "launch_setup";
private static final String SHARED_PREFS_NAME = "com.android.usbtuner.preferences";
private static final Bundle PREFERENCE_VALUES = new Bundle();
private static boolean useContentProvider(Context context) {
// If TIS is a part of LC, it should use ContentProvider to resolve multiple process access.
return TisConfiguration.isPackagedWithLiveChannels(context);
}
public static int getChannelDataVersion(Context context) {
if (useContentProvider(context)) {
return getPreferenceInt(context, PREFS_KEY_CHANNEL_DATA_VERSION);
} else {
return getSharedPreferences(context)
.getInt(UsbTunerPreferences.PREFS_KEY_CHANNEL_DATA_VERSION, 0);
}
}
public static void setChannelDataVersion(Context context, int version) {
if (useContentProvider(context)) {
setPreference(context, PREFS_KEY_CHANNEL_DATA_VERSION, version);
} else {
getSharedPreferences(context).edit()
.putInt(UsbTunerPreferences.PREFS_KEY_CHANNEL_DATA_VERSION, version)
.apply();
}
}
public static int getScannedChannelCount(Context context) {
if (useContentProvider(context)) {
return getPreferenceInt(context, PREFS_KEY_SCANNED_CHANNEL_COUNT);
} else {
return getSharedPreferences(context)
.getInt(UsbTunerPreferences.PREFS_KEY_SCANNED_CHANNEL_COUNT, 0);
}
}
public static void setScannedChannelCount(Context context, int channelCount) {
if (useContentProvider(context)) {
setPreference(context, PREFS_KEY_SCANNED_CHANNEL_COUNT, channelCount);
} else {
getSharedPreferences(context).edit()
.putInt(UsbTunerPreferences.PREFS_KEY_SCANNED_CHANNEL_COUNT, channelCount)
.apply();
}
}
public static boolean isScanDone(Context context) {
if (useContentProvider(context)) {
return getPreferenceBoolean(context, PREFS_KEY_SCAN_DONE);
} else {
return getSharedPreferences(context)
.getBoolean(UsbTunerPreferences.PREFS_KEY_SCAN_DONE, false);
}
}
public static void setScanDone(Context context) {
if (useContentProvider(context)) {
setPreference(context, PREFS_KEY_SCAN_DONE, true);
} else {
getSharedPreferences(context).edit()
.putBoolean(UsbTunerPreferences.PREFS_KEY_SCAN_DONE, true)
.apply();
}
}
public static boolean shouldShowSetupActivity(Context context) {
if (useContentProvider(context)) {
return getPreferenceBoolean(context, PREFS_KEY_LAUNCH_SETUP);
} else {
return getSharedPreferences(context)
.getBoolean(UsbTunerPreferences.PREFS_KEY_LAUNCH_SETUP, false);
}
}
public static void setShouldShowSetupActivity(Context context, boolean need) {
if (useContentProvider(context)) {
setPreference(context, PREFS_KEY_LAUNCH_SETUP, need);
} else {
getSharedPreferences(context).edit()
.putBoolean(UsbTunerPreferences.PREFS_KEY_LAUNCH_SETUP, need)
.apply();
}
}
private static SharedPreferences getSharedPreferences(Context context) {
return context.getSharedPreferences(SHARED_PREFS_NAME, Context.MODE_PRIVATE);
}
// Content provider helpers
private static String getPreference(Context context, String key) {
ContentResolver resolver = context.getContentResolver();
String[] projection = new String[] { Preferences.COLUMN_VALUE };
String selection = Preferences.COLUMN_KEY + " like ?";
String[] selectionArgs = new String[] { key };
try (Cursor cursor = resolver.query(UsbTunerPreferenceProvider.buildPreferenceUri(key),
projection, selection, selectionArgs, null)) {
if (cursor != null && cursor.moveToFirst()) {
return cursor.getString(0);
}
} catch (Exception e) {
SoftPreconditions.warn(TAG, "getPreference", "Error querying preference values", e);
}
return null;
}
private static int getPreferenceInt(Context context, String key) {
if (PREFERENCE_VALUES.containsKey(key)) {
return PREFERENCE_VALUES.getInt(key);
}
try {
return Integer.parseInt(getPreference(context, key));
} catch (NumberFormatException e) {
return 0;
}
}
private static boolean getPreferenceBoolean(Context context, String key) {
if (PREFERENCE_VALUES.containsKey(key)) {
return PREFERENCE_VALUES.getBoolean(key);
}
return Boolean.valueOf(getPreference(context, key));
}
private static void setPreference(final Context context, final String key, final String value) {
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
ContentResolver resolver = context.getContentResolver();
ContentValues values = new ContentValues();
values.put(Preferences.COLUMN_KEY, key);
values.put(Preferences.COLUMN_VALUE, value);
try {
resolver.insert(Preferences.CONTENT_URI, values);
} catch (Exception e) {
SoftPreconditions.warn(TAG, "setPreference", "Error writing preference values",
e);
}
return null;
}
}.execute();
}
private static void setPreference(Context context, String key, int value) {
PREFERENCE_VALUES.putInt(key, value);
setPreference(context, key, Integer.toString(value));
}
private static void setPreference(Context context, String key, boolean value) {
PREFERENCE_VALUES.putBoolean(key, value);
setPreference(context, key, Boolean.toString(value));
}
}
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