The Tor Browser: mobile/android/base/GeckoConnectivityReceiver.java@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 package org.mozilla.gecko;

     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;

    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";

    25     private static final String LOGTAG = "GeckoConnectivityReceiver";

    27     private static GeckoConnectivityReceiver sInstance = new GeckoConnectivityReceiver();

    29     private final IntentFilter mFilter;

    30     private Context mApplicationContext;

    31     private boolean mIsEnabled;

    33     public static GeckoConnectivityReceiver getInstance() {

    34         return sInstance;

    35     }

    37     private GeckoConnectivityReceiver() {

    38         mFilter = new IntentFilter();

    39         mFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);

    40     }

    42     public synchronized void start(Context context) {

    43         if (mIsEnabled) {

    44             Log.w(LOGTAG, "Already started!");

    45             return;

    46         }

    48         mApplicationContext = context.getApplicationContext();

    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     }

    58     public synchronized void stop() {

    59         if (!mIsEnabled) {

    60             Log.w(LOGTAG, "Already stopped!");

    61             return;

    62         }

    64         mApplicationContext.unregisterReceiver(this);

    65         mApplicationContext = null;

    66         mIsEnabled = false;

    67     }

    69     @Override

    70     public void onReceive(Context context, Intent intent) {

    71         ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

    72         NetworkInfo info = cm.getActiveNetworkInfo();

    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         }

    83         if (GeckoThread.checkLaunchState(GeckoThread.LaunchState.GeckoRunning)) {

    84             GeckoAppShell.sendEventToGecko(GeckoEvent.createNetworkLinkChangeEvent(status));

    85         }

    86     }

    87 }

The Tor Browser / file revision