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/*
* Copyright (C) 2020 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.development;
import android.content.ContentResolver;
import android.content.Context;
import android.database.ContentObserver;
import android.debug.IAdbManager;
import android.net.ConnectivityManager;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.Uri;
import android.os.Handler;
import android.os.Looper;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.provider.Settings;
import android.util.Log;
import android.widget.Toast;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.settings.R;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settings.widget.PrimarySwitchPreference;
import com.android.settingslib.core.lifecycle.Lifecycle;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnPause;
import com.android.settingslib.core.lifecycle.events.OnResume;
import com.android.settingslib.development.DeveloperOptionsPreferenceController;
/**
* This controls the primary switch controller in the developer options page for
* "Wireless debugging".
*/
public class WirelessDebuggingPreferenceController extends DeveloperOptionsPreferenceController
implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin,
LifecycleObserver, OnResume, OnPause {
private static final String TAG = "WirelessDebugPrefCtrl";
private final IAdbManager mAdbManager;
private final ContentResolver mContentResolver;
private final ContentObserver mSettingsObserver;
private final Handler mHandler = new Handler(Looper.getMainLooper());
public static final String KEY_TOGGLE_ADB_WIRELESS = "toggle_adb_wireless";
public WirelessDebuggingPreferenceController(Context context, Lifecycle lifecycle) {
super(context);
if (lifecycle != null) {
lifecycle.addObserver(this);
}
mAdbManager = IAdbManager.Stub.asInterface(ServiceManager.getService(Context.ADB_SERVICE));
mSettingsObserver = new ContentObserver(mHandler) {
@Override
public void onChange(boolean selfChange, Uri uri) {
updateState(mPreference);
}
};
mContentResolver = context.getContentResolver();
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
}
@Override
public boolean isAvailable() {
try {
return mAdbManager.isAdbWifiSupported();
} catch (RemoteException e) {
Log.e(TAG, "Unable to check if adb wifi is supported.", e);
}
return false;
}
@Override
public String getPreferenceKey() {
return KEY_TOGGLE_ADB_WIRELESS;
}
/**
* Called when developer options is enabled and the preference is available
*/
@Override
protected void onDeveloperOptionsSwitchEnabled() {
super.onDeveloperOptionsSwitchEnabled();
mPreference.setEnabled(true);
}
/**
* Called when developer options is disabled and the preference is available
*/
@Override
protected void onDeveloperOptionsSwitchDisabled() {
super.onDeveloperOptionsSwitchDisabled();
mPreference.setEnabled(false);
Settings.Global.putInt(mContext.getContentResolver(),
Settings.Global.ADB_WIFI_ENABLED,
AdbPreferenceController.ADB_SETTING_OFF);
}
@Override
public void onResume() {
mContentResolver.registerContentObserver(
Settings.Global.getUriFor(Settings.Global.ADB_WIFI_ENABLED), false,
mSettingsObserver);
}
@Override
public void onPause() {
mContentResolver.unregisterContentObserver(mSettingsObserver);
}
@Override
public void updateState(Preference preference) {
boolean enabled = Settings.Global.getInt(mContentResolver,
Settings.Global.ADB_WIFI_ENABLED, AdbPreferenceController.ADB_SETTING_OFF)
!= AdbPreferenceController.ADB_SETTING_OFF;
((PrimarySwitchPreference) preference).setChecked(enabled);
}
/**
* Returns true if connected to Wi-Fi network.
*/
public static boolean isWifiConnected(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(
Context.CONNECTIVITY_SERVICE);
if (cm == null) {
return false;
}
for (Network network : cm.getAllNetworks()) {
final NetworkCapabilities nc = cm.getNetworkCapabilities(network);
if (nc == null) {
continue;
}
if (nc.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
return true;
}
}
return false;
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
final boolean enabled = (Boolean) newValue;
if (enabled && !isWifiConnected(mContext)) {
// Cannot enable ADB over Wi-Fi if we're not connected to wifi.
Toast.makeText(
mContext, R.string.adb_wireless_no_network_msg, Toast.LENGTH_LONG)
.show();
return false;
}
Settings.Global.putInt(mContext.getContentResolver(),
Settings.Global.ADB_WIFI_ENABLED,
enabled ? AdbPreferenceController.ADB_SETTING_ON
: AdbPreferenceController.ADB_SETTING_OFF);
return true;
}
}
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