michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsComponentManagerUtils.h"
michael@0: #include "nsServiceManagerUtils.h"
michael@0: #include "nsThreadUtils.h"
michael@0: #include "nsXPCOM.h"
michael@0: #include "nsXPCOMCID.h"
michael@0: #include "nsIObserver.h"
michael@0: #include "nsIObserverService.h"
michael@0: #include "nsWifiMonitor.h"
michael@0: #include "nsWifiAccessPoint.h"
michael@0: 
michael@0: #include "nsServiceManagerUtils.h"
michael@0: #include "nsComponentManagerUtils.h"
michael@0: #include "mozilla/Services.h"
michael@0: 
michael@0: #include "nsIInterfaceRequestor.h"
michael@0: #include "nsIInterfaceRequestorUtils.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: #if defined(PR_LOGGING)
michael@0: PRLogModuleInfo *gWifiMonitorLog;
michael@0: #endif
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsWifiMonitor,
michael@0:                   nsIWifiMonitor,
michael@0:                   nsIObserver,
michael@0:                   nsIWifiScanResultsReady)
michael@0: 
michael@0: nsWifiMonitor::nsWifiMonitor()
michael@0: {
michael@0: #if defined(PR_LOGGING)
michael@0:   gWifiMonitorLog = PR_NewLogModule("WifiMonitor");
michael@0: #endif
michael@0: 
michael@0:   nsCOMPtr<nsIObserverService> obsSvc = mozilla::services::GetObserverService();
michael@0:   if (obsSvc) {
michael@0:     obsSvc->AddObserver(this, "xpcom-shutdown", false);
michael@0:   }
michael@0:   LOG(("@@@@@ wifimonitor created\n"));
michael@0: }
michael@0: 
michael@0: nsWifiMonitor::~nsWifiMonitor()
michael@0: {
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWifiMonitor::StartWatching(nsIWifiListener *aListener)
michael@0: {
michael@0:   LOG(("@@@@@ nsWifiMonitor::StartWatching\n"));
michael@0:   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
michael@0:   if (!aListener) {
michael@0:     return NS_ERROR_NULL_POINTER;
michael@0:   }
michael@0: 
michael@0:   mListeners.AppendElement(nsWifiListener(new nsMainThreadPtrHolder<nsIWifiListener>(aListener)));
michael@0: 
michael@0:   if (!mTimer) {
michael@0:     mTimer = do_CreateInstance("@mozilla.org/timer;1");
michael@0:     mTimer->Init(this, 5000, nsITimer::TYPE_REPEATING_SLACK);
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWifiMonitor::StopWatching(nsIWifiListener *aListener)
michael@0: {
michael@0:   LOG(("@@@@@ nsWifiMonitor::StopWatching\n"));
michael@0:   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
michael@0:   if (!aListener) {
michael@0:     return NS_ERROR_NULL_POINTER;
michael@0:   }
michael@0: 
michael@0:   for (uint32_t i = 0; i < mListeners.Length(); i++) {
michael@0:     if (mListeners[i].mListener == aListener) {
michael@0:       mListeners.RemoveElementAt(i);
michael@0:       break;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   if (mListeners.Length() == 0) {
michael@0:     ClearTimer();
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWifiMonitor::Observe(nsISupports *subject, const char *topic,
michael@0:                        const char16_t *data)
michael@0: {
michael@0:   if (!strcmp(topic, "timer-callback")) {
michael@0:     LOG(("timer callback\n"));
michael@0: 
michael@0:     nsCOMPtr<nsIInterfaceRequestor> ir = do_GetService("@mozilla.org/telephony/system-worker-manager;1");
michael@0:     nsCOMPtr<nsIWifi> wifi = do_GetInterface(ir);
michael@0:     if (!wifi) {
michael@0:       return NS_ERROR_UNEXPECTED;
michael@0:     }
michael@0: 
michael@0:     wifi->GetWifiScanResults(this);
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   if (!strcmp(topic, "xpcom-shutdown")) {
michael@0:     LOG(("Shutting down\n"));
michael@0:     ClearTimer();
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   return NS_ERROR_UNEXPECTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWifiMonitor::Onready(uint32_t count, nsIWifiScanResult **results)
michael@0: {
michael@0:   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
michael@0:   LOG(("@@@@@ About to send data to the wifi listeners\n"));
michael@0: 
michael@0:   nsCOMArray<nsWifiAccessPoint> accessPoints;
michael@0: 
michael@0:   for (uint32_t i = 0; i < count; i++) {
michael@0:     nsRefPtr<nsWifiAccessPoint> ap = new nsWifiAccessPoint();
michael@0: 
michael@0:     nsString temp;
michael@0:     results[i]->GetBssid(temp);
michael@0:     //   00:00:00:00:00:00 --> 00-00-00-00-00-00
michael@0:     for (int32_t x=0; x<6; x++) {
michael@0:       temp.ReplaceSubstring(NS_LITERAL_STRING(":"), NS_LITERAL_STRING("-")); // would it be too much to ask for a ReplaceAll()?
michael@0:     }
michael@0: 
michael@0:     nsCString mac;
michael@0:     mac.AssignWithConversion(temp);
michael@0: 
michael@0:     results[i]->GetSsid(temp);
michael@0: 
michael@0:     nsCString ssid;
michael@0:     ssid.AssignWithConversion(temp);
michael@0: 
michael@0:     uint32_t signal;
michael@0:     results[i]->GetSignalStrength(&signal);
michael@0: 
michael@0:     ap->setSignal(signal);
michael@0:     ap->setMacRaw(mac.get());
michael@0:     ap->setSSIDRaw(ssid.get(), ssid.Length());
michael@0: 
michael@0:     accessPoints.AppendObject(ap);
michael@0:   }
michael@0: 
michael@0:   bool accessPointsChanged = !AccessPointsEqual(accessPoints, mLastAccessPoints);
michael@0:   ReplaceArray(mLastAccessPoints, accessPoints);
michael@0: 
michael@0:   nsTArray<nsIWifiAccessPoint*> ac;
michael@0:   uint32_t resultCount = mLastAccessPoints.Count();
michael@0:   for (uint32_t i = 0; i < resultCount; i++) {
michael@0:     ac.AppendElement(mLastAccessPoints[i]);
michael@0:   }
michael@0: 
michael@0:   for (uint32_t i = 0; i < mListeners.Length(); i++) {
michael@0:     if (!mListeners[i].mHasSentData || accessPointsChanged) {
michael@0:       mListeners[i].mHasSentData = true;
michael@0:       mListeners[i].mListener->OnChange(ac.Elements(), ac.Length());
michael@0:     }
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWifiMonitor::Onfailure()
michael@0: {
michael@0:   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
michael@0:   LOG(("@@@@@ About to send error to the wifi listeners\n"));
michael@0:   for (uint32_t i = 0; i < mListeners.Length(); i++) {
michael@0:     mListeners[i].mListener->OnError(NS_ERROR_UNEXPECTED);
michael@0:   }
michael@0: 
michael@0:   ClearTimer();
michael@0:   return NS_OK;
michael@0: }