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/*
* Copyright (C) 2017 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.wifi;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkScoreManager;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.text.TextUtils;
import androidx.annotation.VisibleForTesting;
import com.android.settings.R;
import com.android.settings.widget.SummaryUpdater;
import com.android.settingslib.wifi.WifiStatusTracker;
/**
* Helper class that listeners to wifi callback and notify client when there is update in
* wifi summary info.
*/
public final class WifiSummaryUpdater extends SummaryUpdater {
private final WifiStatusTracker mWifiTracker;
private final BroadcastReceiver mReceiver;
private static final IntentFilter INTENT_FILTER;
static {
INTENT_FILTER = new IntentFilter();
INTENT_FILTER.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
INTENT_FILTER.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
INTENT_FILTER.addAction(WifiManager.RSSI_CHANGED_ACTION);
}
public WifiSummaryUpdater(Context context, OnSummaryChangeListener listener) {
this(context, listener, null);
}
@VisibleForTesting
public WifiSummaryUpdater(Context context, OnSummaryChangeListener listener,
WifiStatusTracker wifiTracker) {
super(context, listener);
mWifiTracker = wifiTracker != null ? wifiTracker :
new WifiStatusTracker(context, context.getSystemService(WifiManager.class),
context.getSystemService(NetworkScoreManager.class),
context.getSystemService(ConnectivityManager.class),
this::notifyChangeIfNeeded);
mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
mWifiTracker.handleBroadcast(intent);
notifyChangeIfNeeded();
}
};
}
@Override
public void register(boolean register) {
if (register) {
mWifiTracker.fetchInitialState();
notifyChangeIfNeeded();
mContext.registerReceiver(mReceiver, INTENT_FILTER);
} else {
mContext.unregisterReceiver(mReceiver);
}
mWifiTracker.setListening(register);
}
@Override
public String getSummary() {
if (!mWifiTracker.enabled) {
return mContext.getString(R.string.switch_off_text);
}
if (!mWifiTracker.connected) {
return mContext.getString(R.string.disconnected);
}
String ssid = WifiInfo.sanitizeSsid(mWifiTracker.ssid);
if (TextUtils.isEmpty(mWifiTracker.statusLabel)) {
return ssid;
}
return mContext.getResources().getString(
com.android.settingslib.R.string.preference_summary_default_combination,
ssid, mWifiTracker.statusLabel);
}
/**
* return true if Wi-Fi connected.
*/
public boolean isWifiConnected() {
return mWifiTracker.connected;
}
}
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