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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;
public class GeckoConnectivityReceiver extends BroadcastReceiver {
/*
* Keep the below constants in sync with
* http://mxr.mozilla.org/mozilla-central/source/netwerk/base/public/nsINetworkLinkService.idl
*/
private static final String LINK_DATA_UP = "up";
private static final String LINK_DATA_DOWN = "down";
private static final String LINK_DATA_UNKNOWN = "unknown";
private static final String LOGTAG = "GeckoConnectivityReceiver";
private static GeckoConnectivityReceiver sInstance = new GeckoConnectivityReceiver();
private IntentFilter mFilter;
private Context mApplicationContext;
private boolean mIsEnabled;
public static GeckoConnectivityReceiver getInstance() {
return sInstance;
}
private GeckoConnectivityReceiver() {
mFilter = new IntentFilter();
mFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
}
public void init(Context context) {
mApplicationContext = context.getApplicationContext();
}
public synchronized void start() {
if (!mIsEnabled) {
// registerReceiver will return null if registering fails
if (mApplicationContext.registerReceiver(this, mFilter) == null) {
Log.e(LOGTAG, "Registering receiver failed");
} else {
mIsEnabled = true;
}
}
}
public synchronized void stop() {
if (mIsEnabled) {
mApplicationContext.unregisterReceiver(this);
mIsEnabled = false;
}
}
@Override
public void onReceive(Context context, Intent intent) {
ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = cm.getActiveNetworkInfo();
String status;
if (info == null) {
status = LINK_DATA_UNKNOWN;
} else if (!info.isConnected()) {
status = LINK_DATA_DOWN;
} else {
status = LINK_DATA_UP;
}
if (GeckoThread.checkLaunchState(GeckoThread.LaunchState.GeckoRunning)) {
GeckoAppShell.sendEventToGecko(GeckoEvent.createNetworkLinkChangeEvent(status));
}
}
}
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