The Tor Browser / file comparison
comparison: mobile/android/base/GeckoConnectivityReceiver.java
mobile/android/base/GeckoConnectivityReceiver.java
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| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 package org.mozilla.gecko; | |
| 7 | |
| 8 import android.content.BroadcastReceiver; | |
| 9 import android.content.Context; | |
| 10 import android.content.Intent; | |
| 11 import android.content.IntentFilter; | |
| 12 import android.net.ConnectivityManager; | |
| 13 import android.net.NetworkInfo; | |
| 14 import android.util.Log; | |
| 15 | |
| 16 public class GeckoConnectivityReceiver extends BroadcastReceiver { | |
| 17 /* | |
| 18 * Keep the below constants in sync with | |
| 19 * http://mxr.mozilla.org/mozilla-central/source/netwerk/base/public/nsINetworkLinkService.idl | |
| 20 */ | |
| 21 private static final String LINK_DATA_UP = "up"; | |
| 22 private static final String LINK_DATA_DOWN = "down"; | |
| 23 private static final String LINK_DATA_UNKNOWN = "unknown"; | |
| 24 | |
| 25 private static final String LOGTAG = "GeckoConnectivityReceiver"; | |
| 26 | |
| 27 private static GeckoConnectivityReceiver sInstance = new GeckoConnectivityReceiver(); | |
| 28 | |
| 29 private final IntentFilter mFilter; | |
| 30 private Context mApplicationContext; | |
| 31 private boolean mIsEnabled; | |
| 32 | |
| 33 public static GeckoConnectivityReceiver getInstance() { | |
| 34 return sInstance; | |
| 35 } | |
| 36 | |
| 37 private GeckoConnectivityReceiver() { | |
| 38 mFilter = new IntentFilter(); | |
| 39 mFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION); | |
| 40 } | |
| 41 | |
| 42 public synchronized void start(Context context) { | |
| 43 if (mIsEnabled) { | |
| 44 Log.w(LOGTAG, "Already started!"); | |
| 45 return; | |
| 46 } | |
| 47 | |
| 48 mApplicationContext = context.getApplicationContext(); | |
| 49 | |
| 50 // registerReceiver will return null if registering fails. | |
| 51 if (mApplicationContext.registerReceiver(this, mFilter) == null) { | |
| 52 Log.e(LOGTAG, "Registering receiver failed"); | |
| 53 } else { | |
| 54 mIsEnabled = true; | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 public synchronized void stop() { | |
| 59 if (!mIsEnabled) { | |
| 60 Log.w(LOGTAG, "Already stopped!"); | |
| 61 return; | |
| 62 } | |
| 63 | |
| 64 mApplicationContext.unregisterReceiver(this); | |
| 65 mApplicationContext = null; | |
| 66 mIsEnabled = false; | |
| 67 } | |
| 68 | |
| 69 @Override | |
| 70 public void onReceive(Context context, Intent intent) { | |
| 71 ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE); | |
| 72 NetworkInfo info = cm.getActiveNetworkInfo(); | |
| 73 | |
| 74 final String status; | |
| 75 if (info == null) { | |
| 76 status = LINK_DATA_UNKNOWN; | |
| 77 } else if (!info.isConnected()) { | |
| 78 status = LINK_DATA_DOWN; | |
| 79 } else { | |
| 80 status = LINK_DATA_UP; | |
| 81 } | |
| 82 | |
| 83 if (GeckoThread.checkLaunchState(GeckoThread.LaunchState.GeckoRunning)) { | |
| 84 GeckoAppShell.sendEventToGecko(GeckoEvent.createNetworkLinkChangeEvent(status)); | |
| 85 } | |
| 86 } | |
| 87 } |
