[Wifi] Add new enums and make some API changes

- Now QtWifi can provide feedback when incorrect password is
  entered.

- networkStateChanged signal provides a reference to the
  currently active network connection.

- bug fixes in QWifiManager::connect

Task-number: QTEE-408

Change-Id: Ic7458b864f09aef3cfca40fb081dec45e0bba7db
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@digia.com>

1 files changed, 44 insertions, 15 deletions

diff --git a/src/imports/wifi/qwifinetworklistmodel.cpp b/src/imports/wifi/qwifinetworklistmodel.cpp
index bd1d37d..4fbf25f 100644
--- a/src/imports/wifi/qwifinetworklistmodel.cpp
+++ b/src/imports/wifi/qwifinetworklistmodel.cpp
@@ -27,6 +27,14 @@ QWifiNetworkListModel::QWifiNetworkListModel(QWifiManager *manager)
 {
 }
 
+QWifiNetworkListModel::~QWifiNetworkListModel()
+{
+    qDeleteAll(m_networks);
+    qDeleteAll(m_outOfRangeNetworks);
+    m_networks.clear();
+    m_outOfRangeNetworks.clear();
+}
+
 QHash<int, QByteArray> QWifiNetworkListModel::roleNames() const
 {
     QHash<int, QByteArray> names;
@@ -48,7 +56,7 @@ QVariant QWifiNetworkListModel::data(const QModelIndex &index, int role) const
 
 QWifiNetwork *QWifiNetworkListModel::networkForSSID(const QByteArray &ssid, int *pos)
 {
-    for (int i=0; i<m_networks.size(); ++i) {
+    for (int i = 0; i < m_networks.size(); ++i) {
         if (m_networks.at(i)->ssid() == ssid) {
             if (pos)
                 *pos = i;
@@ -58,21 +66,32 @@ QWifiNetwork *QWifiNetworkListModel::networkForSSID(const QByteArray &ssid, int
     return 0;
 }
 
+QWifiNetwork *QWifiNetworkListModel::outOfRangeListContains(const QByteArray &ssid)
+{
+    for (int i = 0; i < m_outOfRangeNetworks.length(); ++i)
+        if (m_outOfRangeNetworks.at(i)->ssid() == ssid)
+            return m_outOfRangeNetworks.takeAt(i);
+    return 0;
+}
+
 void QWifiNetworkListModel::parseScanResults(const QByteArray &results)
 {
     QList<QByteArray> lines = results.split('\n');
-
     QSet<QByteArray> sensibleNetworks;
-    for (int i=1; i<lines.size(); ++i) {
+
+    for (int i = 1; i < lines.size(); ++i) {
         QList<QByteArray> info = lines.at(i).split('\t');
         if (info.size() < 5 || info.at(4).isEmpty() || info.at(0).isEmpty())
             continue;
         int pos = 0;
-        if (!sensibleNetworks.contains(info.at(4)))
-            sensibleNetworks.insert(info.at(4));
-        QWifiNetwork *existingNetwork = networkForSSID(info.at(4), &pos);
-        if (!existingNetwork) {
+        sensibleNetworks.insert(info.at(4));
+        QWifiNetwork *knownNetwork = networkForSSID(info.at(4), &pos);
+        if (!knownNetwork)
+            knownNetwork = outOfRangeListContains(info.at(4));
+
+        if (!knownNetwork) {
             QWifiNetwork *network = new QWifiNetwork();
+            network->setOutOfRange(false);
             network->setBssid(info.at(0));
             network->setFlags(info.at(3));
             // signal strength is in dBm
@@ -82,13 +101,23 @@ void QWifiNetworkListModel::parseScanResults(const QByteArray &results)
             m_networks << network;
             endInsertRows();
         } else {
+            if (knownNetwork->outOfRange()) {
+                // known network has come back into a range
+                knownNetwork->setOutOfRange(false);
+                beginInsertRows(QModelIndex(), m_networks.size(), m_networks.size());
+                m_networks << knownNetwork;
+                endInsertRows();
+                pos = m_networks.length() - 1;
+            }
             // ssids are the same, compare bssids..
-            if (existingNetwork->bssid() == info.at(0)) {
+            if (knownNetwork->bssid() == info.at(0)) {
                 // same access point, simply update the signal strength
-                existingNetwork->setSignalStrength(info.at(2).toInt());
+                knownNetwork->setSignalStrength(info.at(2).toInt());
+                knownNetwork->setOutOfRange(false);
                 dataChanged(createIndex(pos, 0), createIndex(pos, 0));
-            } else if (existingNetwork->signalStrength() < info.at(2).toInt()) {
+            } else if (knownNetwork->signalStrength() < info.at(2).toInt()) {
                 // replace with a stronger access point within the same network
+                m_networks.at(pos)->setOutOfRange(false);
                 m_networks.at(pos)->setBssid(info.at(0));
                 m_networks.at(pos)->setFlags(info.at(3));
                 m_networks.at(pos)->setSignalStrength(info.at(2).toInt());
@@ -97,16 +126,16 @@ void QWifiNetworkListModel::parseScanResults(const QByteArray &results)
             }
         }
     }
-    // remove networks that have gone out of range
-    for (int i = 0; i < m_networks.size(); ++i) {
+    // remove out-of-range networks from the data model
+    for (int i = 0; i < m_networks.size();) {
         if (!sensibleNetworks.contains(m_networks.at(i)->ssid())) {
             beginRemoveRows(QModelIndex(), i, i);
-            delete m_networks.takeAt(i);
+            QWifiNetwork *n = m_networks.takeAt(i);
+            n->setOutOfRange(true);
+            m_outOfRangeNetworks.append(n);
             endRemoveRows();
         } else {
             ++i;
         }
     }
 }
-
-