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