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/**
* Copyright (c) 2020 LEAP Encryption Access Project and contributers
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package se.leap.bitmaskclient.tethering;
import androidx.annotation.NonNull;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
public class TetheringObservable {
private static TetheringObservable instance;
private TetheringState tetheringState;
private final PropertyChangeSupport changeSupport;
public static final String PROPERTY_CHANGE = "TetheringObservable";
private TetheringObservable() {
tetheringState = new TetheringState();
changeSupport = new PropertyChangeSupport(this);
}
public static TetheringObservable getInstance() {
if (instance == null) {
instance = new TetheringObservable();
}
return instance;
}
public void addObserver(PropertyChangeListener propertyChangeListener) {
changeSupport.addPropertyChangeListener(propertyChangeListener);
}
public void deleteObserver(PropertyChangeListener propertyChangeListener) {
changeSupport.removePropertyChangeListener(propertyChangeListener);
}
public static void allowVpnWifiTethering(boolean enabled) {
if (getInstance().tetheringState.isVpnWifiTetheringAllowed != enabled) {
getInstance().tetheringState.isVpnWifiTetheringAllowed = enabled;
getInstance().notifyObservers();
}
}
public static void allowVpnUsbTethering(boolean enabled) {
if (getInstance().tetheringState.isVpnUsbTetheringAllowed != enabled) {
getInstance().tetheringState.isVpnUsbTetheringAllowed = enabled;
getInstance().notifyObservers();
}
}
public static void allowVpnBluetoothTethering(boolean enabled) {
if (getInstance().tetheringState.isVpnBluetoothTetheringAllowed != enabled) {
getInstance().tetheringState.isVpnBluetoothTetheringAllowed = enabled;
getInstance().notifyObservers();
}
}
static void setWifiTethering(boolean enabled, @NonNull String address, @NonNull String interfaceName) {
if (getInstance().tetheringState.isWifiTetheringEnabled != enabled ||
!getInstance().tetheringState.wifiInterface.equals(interfaceName) ||
!getInstance().tetheringState.wifiAddress.equals(address)) {
TetheringState state = getInstance().tetheringState;
state.isWifiTetheringEnabled = enabled;
state.wifiInterface = interfaceName;
state.wifiAddress = address;
state.lastSeenWifiAddress = address.isEmpty() ? state.lastSeenWifiAddress : address;
state.lastSeenWifiInterface = interfaceName.isEmpty() ? state.lastSeenWifiInterface : interfaceName;
getInstance().notifyObservers();
}
}
static void setUsbTethering(boolean enabled, @NonNull String address, @NonNull String interfaceName) {
if (getInstance().tetheringState.isUsbTetheringEnabled != enabled ||
!getInstance().tetheringState.usbAddress.equals(address) ||
!getInstance().tetheringState.usbInterface.equals(interfaceName)) {
TetheringState state = getInstance().tetheringState;
state.isUsbTetheringEnabled = enabled;
state.usbAddress = address;
state.usbInterface = interfaceName;
state.lastSeenUsbAddress = address.isEmpty() ? state.lastSeenUsbAddress : address;
state.lastSeenUsbInterface = interfaceName.isEmpty() ? state.lastSeenUsbInterface : interfaceName;
getInstance().notifyObservers();
}
}
static void setBluetoothTethering(boolean enabled, @NonNull String address, @NonNull String interfaceName) {
if (getInstance().tetheringState.isBluetoothTetheringEnabled != enabled ||
!getInstance().tetheringState.bluetoothAddress.equals(address) ||
!getInstance().tetheringState.bluetoothInterface.equals(interfaceName)) {
TetheringState state = getInstance().tetheringState;
state.isBluetoothTetheringEnabled = enabled;
state.bluetoothAddress = address;
state.bluetoothInterface = interfaceName;
state.lastSeenBluetoothAddress = address.isEmpty() ? state.lastSeenBluetoothAddress : address;
state.lastSeenBluetoothInterface = interfaceName.isEmpty() ? state.lastSeenBluetoothInterface : interfaceName;
getInstance().notifyObservers();
}
}
public boolean isBluetoothTetheringEnabled() {
return tetheringState.isBluetoothTetheringEnabled;
}
public boolean isUsbTetheringEnabled() {
return tetheringState.isUsbTetheringEnabled;
}
public boolean isWifiTetheringEnabled() {
return tetheringState.isWifiTetheringEnabled;
}
public TetheringState getTetheringState() {
return tetheringState;
}
private void notifyObservers() {
changeSupport.firePropertyChange(PROPERTY_CHANGE, null, getInstance());
}
}
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