| /* |
| * 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.systemui.statusbar.policy; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.NetworkCapabilities; |
| import android.net.NetworkInfo; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiInfo; |
| import android.net.wifi.WifiManager; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.util.Log; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.AsyncChannel; |
| import com.android.systemui.statusbar.policy.NetworkController.NetworkSignalChangedCallback; |
| import com.android.systemui.statusbar.policy.NetworkControllerImpl.SignalCluster; |
| |
| import java.util.List; |
| import java.util.Objects; |
| |
| |
| public class WifiSignalController extends |
| SignalController<WifiSignalController.WifiState, SignalController.IconGroup> { |
| private final WifiManager mWifiManager; |
| private final AsyncChannel mWifiChannel; |
| private final boolean mHasMobileData; |
| |
| public WifiSignalController(Context context, boolean hasMobileData, |
| List<NetworkSignalChangedCallback> signalCallbacks, |
| List<SignalCluster> signalClusters, NetworkControllerImpl networkController) { |
| super("WifiSignalController", context, NetworkCapabilities.TRANSPORT_WIFI, |
| signalCallbacks, signalClusters, networkController); |
| mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); |
| mHasMobileData = hasMobileData; |
| Handler handler = new WifiHandler(); |
| mWifiChannel = new AsyncChannel(); |
| Messenger wifiMessenger = mWifiManager.getWifiServiceMessenger(); |
| if (wifiMessenger != null) { |
| mWifiChannel.connect(context, handler, wifiMessenger); |
| } |
| // WiFi only has one state. |
| mCurrentState.iconGroup = mLastState.iconGroup = new IconGroup( |
| "Wi-Fi Icons", |
| WifiIcons.WIFI_SIGNAL_STRENGTH, |
| WifiIcons.QS_WIFI_SIGNAL_STRENGTH, |
| AccessibilityContentDescriptions.WIFI_CONNECTION_STRENGTH, |
| WifiIcons.WIFI_NO_NETWORK, |
| WifiIcons.QS_WIFI_NO_NETWORK, |
| WifiIcons.WIFI_NO_NETWORK, |
| WifiIcons.QS_WIFI_NO_NETWORK, |
| AccessibilityContentDescriptions.WIFI_NO_CONNECTION |
| ); |
| } |
| |
| @Override |
| protected WifiState cleanState() { |
| return new WifiState(); |
| } |
| |
| @Override |
| public void notifyListeners() { |
| // only show wifi in the cluster if connected or if wifi-only |
| boolean wifiVisible = mCurrentState.enabled |
| && (mCurrentState.connected || !mHasMobileData); |
| String wifiDesc = wifiVisible ? mCurrentState.ssid : null; |
| boolean ssidPresent = wifiVisible && mCurrentState.ssid != null; |
| String contentDescription = getStringIfExists(getContentDescription()); |
| int length = mSignalsChangedCallbacks.size(); |
| for (int i = 0; i < length; i++) { |
| mSignalsChangedCallbacks.get(i).onWifiSignalChanged(mCurrentState.enabled, |
| mCurrentState.connected, getQsCurrentIconId(), |
| ssidPresent && mCurrentState.activityIn, |
| ssidPresent && mCurrentState.activityOut, contentDescription, wifiDesc); |
| } |
| |
| int signalClustersLength = mSignalClusters.size(); |
| for (int i = 0; i < signalClustersLength; i++) { |
| mSignalClusters.get(i).setWifiIndicators(wifiVisible, getCurrentIconId(), |
| contentDescription); |
| } |
| } |
| |
| /** |
| * Extract wifi state directly from broadcasts about changes in wifi state. |
| */ |
| public void handleBroadcast(Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) { |
| mCurrentState.enabled = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, |
| WifiManager.WIFI_STATE_UNKNOWN) == WifiManager.WIFI_STATE_ENABLED; |
| } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) { |
| final NetworkInfo networkInfo = (NetworkInfo) |
| intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO); |
| mCurrentState.connected = networkInfo != null && networkInfo.isConnected(); |
| // If Connected grab the signal strength and ssid. |
| if (mCurrentState.connected) { |
| // try getting it out of the intent first |
| WifiInfo info = intent.getParcelableExtra(WifiManager.EXTRA_WIFI_INFO) != null |
| ? (WifiInfo) intent.getParcelableExtra(WifiManager.EXTRA_WIFI_INFO) |
| : mWifiManager.getConnectionInfo(); |
| if (info != null) { |
| mCurrentState.ssid = getSsid(info); |
| } else { |
| mCurrentState.ssid = null; |
| } |
| } else if (!mCurrentState.connected) { |
| mCurrentState.ssid = null; |
| } |
| } else if (action.equals(WifiManager.RSSI_CHANGED_ACTION)) { |
| // Default to -200 as its below WifiManager.MIN_RSSI. |
| mCurrentState.rssi = intent.getIntExtra(WifiManager.EXTRA_NEW_RSSI, -200); |
| mCurrentState.level = WifiManager.calculateSignalLevel( |
| mCurrentState.rssi, WifiIcons.WIFI_LEVEL_COUNT); |
| } |
| |
| notifyListenersIfNecessary(); |
| } |
| |
| private String getSsid(WifiInfo info) { |
| String ssid = info.getSSID(); |
| if (ssid != null) { |
| return ssid; |
| } |
| // OK, it's not in the connectionInfo; we have to go hunting for it |
| List<WifiConfiguration> networks = mWifiManager.getConfiguredNetworks(); |
| int length = networks.size(); |
| for (int i = 0; i < length; i++) { |
| if (networks.get(i).networkId == info.getNetworkId()) { |
| return networks.get(i).SSID; |
| } |
| } |
| return null; |
| } |
| |
| @VisibleForTesting |
| void setActivity(int wifiActivity) { |
| mCurrentState.activityIn = wifiActivity == WifiManager.DATA_ACTIVITY_INOUT |
| || wifiActivity == WifiManager.DATA_ACTIVITY_IN; |
| mCurrentState.activityOut = wifiActivity == WifiManager.DATA_ACTIVITY_INOUT |
| || wifiActivity == WifiManager.DATA_ACTIVITY_OUT; |
| notifyListenersIfNecessary(); |
| } |
| |
| /** |
| * Handler to receive the data activity on wifi. |
| */ |
| private class WifiHandler extends Handler { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: |
| if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { |
| mWifiChannel.sendMessage(Message.obtain(this, |
| AsyncChannel.CMD_CHANNEL_FULL_CONNECTION)); |
| } else { |
| Log.e(mTag, "Failed to connect to wifi"); |
| } |
| break; |
| case WifiManager.DATA_ACTIVITY_NOTIFICATION: |
| setActivity(msg.arg1); |
| break; |
| default: |
| // Ignore |
| break; |
| } |
| } |
| } |
| |
| static class WifiState extends SignalController.State { |
| String ssid; |
| |
| @Override |
| public void copyFrom(State s) { |
| super.copyFrom(s); |
| WifiState state = (WifiState) s; |
| ssid = state.ssid; |
| } |
| |
| @Override |
| protected void toString(StringBuilder builder) { |
| super.toString(builder); |
| builder.append(',').append("ssid=").append(ssid); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return super.equals(o) |
| && Objects.equals(((WifiState) o).ssid, ssid); |
| } |
| } |
| } |