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/*
* 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 com.android.settings.bluetooth;
import android.app.QueuedWork;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.text.TextUtils;
import android.util.Log;
import com.android.settingslib.bluetooth.LocalBluetoothAdapter;
import com.android.settingslib.bluetooth.LocalBluetoothManager;
/**
* LocalBluetoothPreferences provides an interface to the preferences
* related to Bluetooth.
*/
final class LocalBluetoothPreferences {
private static final String TAG = "LocalBluetoothPreferences";
private static final boolean DEBUG = Utils.D;
private static final String SHARED_PREFERENCES_NAME = "bluetooth_settings";
// If a device was picked from the device picker or was in discoverable mode
// in the last 60 seconds, show the pairing dialogs in foreground instead
// of raising notifications
private static final int GRACE_PERIOD_TO_SHOW_DIALOGS_IN_FOREGROUND = 60 * 1000;
private static final String KEY_DISCOVERING_TIMESTAMP = "last_discovering_time";
private static final String KEY_LAST_SELECTED_DEVICE = "last_selected_device";
private static final String KEY_LAST_SELECTED_DEVICE_TIME = "last_selected_device_time";
private static final String KEY_DOCK_AUTO_CONNECT = "auto_connect_to_dock";
private static final String KEY_DISCOVERABLE_END_TIMESTAMP = "discoverable_end_timestamp";
private LocalBluetoothPreferences() {
}
private static SharedPreferences getSharedPreferences(Context context) {
return context.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
}
static long getDiscoverableEndTimestamp(Context context) {
return getSharedPreferences(context).getLong(
KEY_DISCOVERABLE_END_TIMESTAMP, 0);
}
static boolean shouldShowDialogInForeground(Context context,
String deviceAddress, String deviceName) {
LocalBluetoothManager manager = Utils.getLocalBtManager(context);
if (manager == null) {
if (DEBUG) Log.v(TAG, "manager == null - do not show dialog.");
return false;
}
// If Bluetooth Settings is visible
if (manager.isForegroundActivity()) {
return true;
}
// If in appliance mode, do not show dialog in foreground.
if ((context.getResources().getConfiguration().uiMode &
Configuration.UI_MODE_TYPE_APPLIANCE) == Configuration.UI_MODE_TYPE_APPLIANCE) {
if (DEBUG) Log.v(TAG, "in appliance mode - do not show dialog.");
return false;
}
long currentTimeMillis = System.currentTimeMillis();
SharedPreferences sharedPreferences = getSharedPreferences(context);
// If the device was in discoverABLE mode recently
long lastDiscoverableEndTime = sharedPreferences.getLong(
KEY_DISCOVERABLE_END_TIMESTAMP, 0);
if ((lastDiscoverableEndTime + GRACE_PERIOD_TO_SHOW_DIALOGS_IN_FOREGROUND)
> currentTimeMillis) {
return true;
}
// If the device was discoverING recently
LocalBluetoothAdapter adapter = manager.getBluetoothAdapter();
if (adapter != null && adapter.isDiscovering()) {
return true;
} else if ((sharedPreferences.getLong(KEY_DISCOVERING_TIMESTAMP, 0) +
GRACE_PERIOD_TO_SHOW_DIALOGS_IN_FOREGROUND) > currentTimeMillis) {
return true;
}
// If the device was picked in the device picker recently
if (deviceAddress != null) {
String lastSelectedDevice = sharedPreferences.getString(
KEY_LAST_SELECTED_DEVICE, null);
if (deviceAddress.equals(lastSelectedDevice)) {
long lastDeviceSelectedTime = sharedPreferences.getLong(
KEY_LAST_SELECTED_DEVICE_TIME, 0);
if ((lastDeviceSelectedTime + GRACE_PERIOD_TO_SHOW_DIALOGS_IN_FOREGROUND)
> currentTimeMillis) {
return true;
}
}
}
if (!TextUtils.isEmpty(deviceName)) {
// If the device is a custom BT keyboard specifically for this device
String packagedKeyboardName = context.getString(
com.android.internal.R.string.config_packagedKeyboardName);
if (deviceName.equals(packagedKeyboardName)) {
if (DEBUG) Log.v(TAG, "showing dialog for packaged keyboard");
return true;
}
}
if (DEBUG) Log.v(TAG, "Found no reason to show the dialog - do not show dialog.");
return false;
}
static void persistSelectedDeviceInPicker(Context context, String deviceAddress) {
SharedPreferences.Editor editor = getSharedPreferences(context).edit();
editor.putString(KEY_LAST_SELECTED_DEVICE,
deviceAddress);
editor.putLong(KEY_LAST_SELECTED_DEVICE_TIME,
System.currentTimeMillis());
editor.apply();
}
static void persistDiscoverableEndTimestamp(Context context, long endTimestamp) {
SharedPreferences.Editor editor = getSharedPreferences(context).edit();
editor.putLong(KEY_DISCOVERABLE_END_TIMESTAMP, endTimestamp);
editor.apply();
}
static void persistDiscoveringTimestamp(final Context context) {
// Load the shared preferences and edit it on a background
// thread (but serialized!).
QueuedWork.singleThreadExecutor().submit(new Runnable() {
public void run() {
SharedPreferences.Editor editor = getSharedPreferences(context).edit();
editor.putLong(
KEY_DISCOVERING_TIMESTAMP,
System.currentTimeMillis());
editor.apply();
}
});
}
static boolean hasDockAutoConnectSetting(Context context, String addr) {
return getSharedPreferences(context).contains(KEY_DOCK_AUTO_CONNECT + addr);
}
static boolean getDockAutoConnectSetting(Context context, String addr) {
return getSharedPreferences(context).getBoolean(KEY_DOCK_AUTO_CONNECT + addr,
false);
}
static void saveDockAutoConnectSetting(Context context, String addr, boolean autoConnect) {
SharedPreferences.Editor editor = getSharedPreferences(context).edit();
editor.putBoolean(KEY_DOCK_AUTO_CONNECT + addr, autoConnect);
editor.apply();
}
static void removeDockAutoConnectSetting(Context context, String addr) {
SharedPreferences.Editor editor = getSharedPreferences(context).edit();
editor.remove(KEY_DOCK_AUTO_CONNECT + addr);
editor.apply();
}
}
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