[coverity] Fixes for issues found by scan.coverity.com

src/lib/3rdparty/fancytabwidget.cpp

@@ -248,6 +248,7 @@ void FancyTab::setFader(float value)
 
 FancyTabBar::FancyTabBar(QWidget* parent)
     : QWidget(parent)
+    , m_currentIndex(-1)
 {
     setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);
     //setStyle(new QWindowsStyle);

src/lib/3rdparty/processinfo.cpp

@@ -61,7 +61,7 @@ bool ProcessInfo::IsNumeric(const char* ccharptr_CharacterList) const
 
 pid_t ProcessInfo::GetPIDbyName(const char* cchrptr_ProcessName) const
 {
-    char chrarry_CommandLinePath[100]  ;
+    char chrarry_CommandLinePath[260]  ;
     char chrarry_NameOfProcess[300]  ;
     char* chrptr_StringToCompare = NULL ;
     pid_t pid_ProcessIdentifier = (pid_t) - 1 ;

src/lib/app/mainapplication.cpp

@@ -86,6 +86,7 @@ MainApplication::MainApplication(int &argc, char** argv)
     , m_networkmanager(0)
     , m_cookiejar(0)
     , m_rssmanager(0)
+    , m_plugins(0)
     , m_bookmarksModel(0)
     , m_downloadManager(0)
     , m_autofill(0)

src/lib/autofill/autofill.cpp

@@ -81,7 +81,10 @@ bool AutoFill::isStoringEnabled(const QUrl &url)
     query.prepare("SELECT count(id) FROM autofill_exceptions WHERE server=?");
     query.addBindValue(server);
     query.exec();
-    query.next();
+
+    if (!query.next()) {
+        return false;
+    }
 
     return query.value(0).toInt() <= 0;
 }

src/lib/autofill/passwordbackends/databaseencryptedpasswordbackend.h

@@ -88,8 +88,6 @@ private:
     bool m_askPasswordDialogVisible;
     bool m_askMasterPassword;
     QByteArray m_masterPassword;
-
-    MasterPasswordDialog* m_masterPasswordDialog;
 };
 
 namespace Ui

src/lib/bookmarks/bookmarksmodel.cpp

@@ -96,8 +96,13 @@ bool BookmarksModel::isBookmarked(const QUrl &url)
     QSqlQuery query;
     query.prepare("SELECT count(id) FROM bookmarks WHERE url=?");
     query.bindValue(0, url.toString());
-    query.exec();
+
+    if (!query.exec()) {
+        return false;
+    }
+
     query.next();
+
     return query.value(0).toInt() > 0;
 }
 

src/lib/bookmarksimport/bookmarksimportdialog.cpp

@@ -37,6 +37,7 @@ BookmarksImportDialog::BookmarksImportDialog(QWidget* parent)
     : QDialog(parent)
     , ui(new Ui::BookmarksImportDialog)
     , m_currentPage(0)
+    , m_browser(Firefox)
     , m_fetcher(0)
     , m_fetcherThread(0)
 {

src/lib/downloads/downloadfilehelper.cpp

@@ -48,6 +48,7 @@ DownloadFileHelper::DownloadFileHelper(const QString &lastDownloadPath, const QS
     , m_useNativeDialog(useNativeDialog)
     , m_timer(0)
     , m_reply(0)
+    , m_fileSize(0)
     , m_openFileChoosed(false)
     , m_listWidget(0)
     , m_iconProvider(new QFileIconProvider)

src/lib/downloads/downloadmanager.cpp

@@ -38,6 +38,7 @@ DownloadManager::DownloadManager(QWidget* parent)
     : QWidget(parent)
     , ui(new Ui::DownloadManager)
     , m_isClosing(false)
+    , m_lastDownloadOption(NoOption)
 {
     setWindowFlags(windowFlags() ^ Qt::WindowMaximizeButtonHint);
     ui->setupUi(this);

src/lib/downloads/downloadmanager.h

@@ -42,7 +42,7 @@ class QT_QUPZILLA_EXPORT DownloadManager : public QWidget
 {
     Q_OBJECT
 public:
-    enum DownloadOption { OpenFile, SaveFile, ExternalManager };
+    enum DownloadOption { OpenFile, SaveFile, ExternalManager, NoOption };
 
     struct DownloadInfo {
         WebPage* page;

src/lib/history/history.cpp

@@ -146,8 +146,10 @@ void History::deleteHistoryEntry(const QList<int> &list)
         QSqlQuery query;
         query.prepare("SELECT count, date, url, title FROM history WHERE id=?");
         query.addBindValue(index);
-        query.exec();
+
-        query.next();
+        if (!query.exec() || !query.next()) {
+            continue;
+        }
 
         HistoryEntry entry;
         entry.id = index;

src/lib/history/history.h

@@ -27,7 +27,6 @@
 
 class QIcon;
 
-class QupZilla;
 class WebView;
 class HistoryModel;
 
@@ -79,8 +78,6 @@ signals:
 
 private:
     bool m_isSaving;
-
-    QupZilla* p_QupZilla;
     HistoryModel* m_model;
 };
 

src/lib/navigation/completer/locationcompleterview.cpp

@@ -174,6 +174,7 @@ bool LocationCompleterView::eventFilter(QObject* object, QEvent* event)
                 return true;
             }
         }
+        break;
     }
 
 

src/lib/network/cabundleupdater.cpp

@@ -31,6 +31,7 @@ CaBundleUpdater::CaBundleUpdater(NetworkManager* manager, QObject* parent)
     : QObject(parent)
     , m_manager(manager)
     , m_progress(Start)
+    , m_reply(0)
     , m_latestBundleVersion(0)
 {
     m_bundleVersionFileName = mApp->PROFILEDIR + "certificates/bundle_version";

src/lib/network/networkproxyfactory.cpp

@@ -67,6 +67,7 @@ NetworkProxyFactory::NetworkProxyFactory()
     , m_proxyType(QNetworkProxy::HttpProxy)
     , m_port(0)
     , m_httpsPort(0)
+    , m_useDifferentProxyForHttps(false)
 {
 }
 

src/lib/other/updater.cpp

@@ -28,6 +28,10 @@
 #include <QNetworkReply>
 
 Updater::Version::Version(const QString &s)
+    : isValid(false)
+    , majorVersion(-1)
+    , minorVersion(-1)
+    , revisionNumber(-1)
 {
     isValid = false;
 

src/lib/other/useragentmanager.cpp

@@ -23,6 +23,7 @@
 #include <QWebPage> // QTWEBKIT_VERSION_CHECK macro
 
 UserAgentManager::UserAgentManager()
+    : m_usePerDomainUserAgent(false)
 {
     m_fakeUserAgent = QString("Mozilla/5.0 (%1) AppleWebKit/%2 (KHTML, like Gecko) Chrome/10.0 Safari/%2").arg(QzTools::operatingSystem(), QupZilla::WEBKITVERSION);
 }

src/lib/plugins/clicktoflash.cpp

@@ -185,8 +185,7 @@ void ClickToFlash::findElement()
 
     QList<QWebFrame*> frames;
     frames.append(objectFrame);
-    m_mainFrame = view->page()->mainFrame();
+    frames.append(view->page()->mainFrame());
-    frames.append(m_mainFrame);
 
     while (!frames.isEmpty()) {
         QWebFrame* frame = frames.takeFirst();

src/lib/plugins/clicktoflash.h

@@ -81,7 +81,6 @@ private:
     QStringList m_argumentNames;
     QStringList m_argumentValues;
     QWebElement m_element;
-    QWebFrame* m_mainFrame;
 
     QToolButton* m_toolButton;
     QHBoxLayout* m_layout1;

src/lib/plugins/qtwebkit/spellcheck/speller.cpp

@@ -40,6 +40,8 @@ Speller::Speller(QObject* parent)
     , m_textCodec(0)
     , m_hunspell(0)
     , m_enabled(false)
+    , m_startPos(0)
+    , m_endPos(0)
 {
     loadSettings();
 }

src/lib/plugins/speeddial.cpp

@@ -35,6 +35,7 @@ SpeedDial::SpeedDial(QObject* parent)
     : QObject(parent)
     , m_maxPagesInRow(4)
     , m_sizeOfSpeedDials(231)
+    , m_sdcentered(false)
     , m_loaded(false)
     , m_regenerateScript(true)
 {

src/lib/preferences/thememanager.cpp

@@ -106,6 +106,7 @@ void ThemeManager::currentChanged()
 ThemeManager::Theme ThemeManager::parseTheme(const QString &path, const QString &name)
 {
     Theme info;
+    info.isValid = false;
 
     if (!QFile(path + "main.css").exists() || !QFile(path + "theme.info").exists()) {
         info.isValid = false;

src/lib/preferences/useragentdialog.cpp

@@ -180,6 +180,10 @@ void UserAgentDialog::enablePerSiteFrame(bool enable)
 
 bool UserAgentDialog::showEditDialog(const QString &title, QString* rSite, QString* rUserAgent)
 {
+    if (!rSite || !rUserAgent) {
+        return false;
+    }
+
     QDialog* dialog = new QDialog(this);
     QFormLayout* layout = new QFormLayout(dialog);
     QLineEdit* editSite = new QLineEdit(dialog);
@@ -199,13 +203,11 @@ bool UserAgentDialog::showEditDialog(const QString &title, QString* rSite, QStri
     layout->addRow(new QLabel(tr("User Agent: ")), editAgent);
     layout->addRow(box);
 
-    if (rSite && rUserAgent) {
+    editSite->setText(*rSite);
-        editSite->setText(*rSite);
+    editAgent->lineEdit()->setText(*rUserAgent);
-        editAgent->lineEdit()->setText(*rUserAgent);
 
-        editSite->setFocus();
+    editSite->setFocus();
-        editAgent->lineEdit()->setCursorPosition(0);
+    editAgent->lineEdit()->setCursorPosition(0);
-    }
 
     dialog->setWindowTitle(title);
     dialog->setMinimumSize(550, 100);

src/lib/tools/animatedwidget.cpp

@@ -24,6 +24,7 @@ AnimatedWidget::AnimatedWidget(const Direction &direction, int duration, QWidget
     , m_direction(direction)
     , m_stepHeight(0)
     , m_stepY(0)
+    , m_startY(0)
     , m_widget(new QWidget(this))
 {
     m_timeLine.setDuration(duration);

src/lib/tools/closedtabsmanager.cpp

@@ -45,6 +45,8 @@ void ClosedTabsManager::saveView(WebTab* tab, int position)
 ClosedTabsManager::Tab ClosedTabsManager::getFirstClosedTab()
 {
     Tab tab;
+    tab.position = -1;
+
     if (m_closedTabs.count() > 0) {
         tab = m_closedTabs.first();
         m_closedTabs.remove(0);
@@ -56,6 +58,8 @@ ClosedTabsManager::Tab ClosedTabsManager::getFirstClosedTab()
 ClosedTabsManager::Tab ClosedTabsManager::getTabAt(int index)
 {
     Tab tab;
+    tab.position = -1;
+
     if (QzTools::vectorContainsIndex(m_closedTabs, index)) {
         tab = m_closedTabs.at(index);
         m_closedTabs.remove(index);

src/lib/tools/headerview.cpp

@@ -24,6 +24,7 @@ HeaderView::HeaderView(QAbstractItemView* parent)
     : QHeaderView(Qt::Horizontal, parent)
     , m_parent(parent)
     , m_menu(0)
+    , m_resizeOnShow(false)
 {
 #if QT_VERSION >= 0x050000
     setSectionsMovable(true);

src/lib/tools/treewidget.cpp

@@ -103,7 +103,7 @@ void TreeWidget::setMimeType(const QString &mimeType)
     m_mimeType = mimeType;
 }
 
-Qt::DropActions TreeWidget::supportedDropActions()
+Qt::DropActions TreeWidget::supportedDropActions() const
 {
     return Qt::CopyAction;
 }
@@ -193,7 +193,7 @@ bool TreeWidget::dropMimeData(QTreeWidgetItem* parent, int,
         bool parentIsRoot = item->data(0, ITEM_IS_TOPLEVEL).toBool();
         QString oldParentTitle = item->data(0, ITEM_PARENT_TITLE).toString();
 
-        bool isFolder = (item && item->text(1).isEmpty());
+        bool isFolder = item->text(1).isEmpty();
         if (isFolder && (item->text(0) == _bookmarksMenu ||
                          item->text(0) == _bookmarksToolbar)) {
             continue;

src/lib/tools/treewidget.h

@@ -67,7 +67,7 @@ private:
     void mousePressEvent(QMouseEvent* event);
     void iterateAllItems(QTreeWidgetItem* parent);
 
-    Qt::DropActions supportedDropActions();
+    Qt::DropActions supportedDropActions() const;
     QStringList mimeTypes() const;
     QMimeData* mimeData(const QList<QTreeWidgetItem*> items) const;
     bool dropMimeData(QTreeWidgetItem* parent, int, const QMimeData* data, Qt::DropAction action);

src/lib/webview/siteinfo.h

@@ -33,7 +33,6 @@ class QTreeWidgetItem;
 
 class WebView;
 class CertificateInfoWidget;
-class ListItemDelegate;
 
 class QT_QUPZILLA_EXPORT SiteInfo : public QDialog
 {
@@ -58,7 +57,6 @@ private:
     Ui::SiteInfo* ui;
     CertificateInfoWidget* m_certWidget;
     WebView* m_view;
-    ListItemDelegate* m_delegate;
 
     QPixmap m_activePixmap;
     QUrl m_baseUrl;

src/lib/webview/tabbar.cpp

@@ -46,6 +46,7 @@ TabBar::TabBar(QupZilla* mainClass, TabWidget* tabWidget)
     , m_tabWidget(tabWidget)
     , m_tabPreview(new TabPreview(mainClass, mainClass))
     , m_showTabPreviews(false)
+    , m_hideTabBarWithOneTab(false)
     , m_clickedTab(0)
     , m_normalTabWidth(0)
     , m_activeTabWidth(0)

src/lib/webview/tabwidget.cpp

@@ -752,6 +752,10 @@ void TabWidget::restoreClosedTab(QObject* obj)
         tab = m_closedTabsManager->getFirstClosedTab();
     }
 
+    if (tab.position < 0) {
+        return;
+    }
+
     int index = addView(QUrl(), tab.title, Qz::NT_CleanSelectedTab, false, tab.position);
     WebTab* webTab = weTab(index);
     webTab->p_restoreTab(tab.url, tab.history);

src/lib/webview/webpage.cpp

@@ -326,6 +326,7 @@ void WebPage::handleUnsupportedContent(QNetworkReply* reply)
             dManager->handleUnsupportedContent(reply, this);
             return;
         }
+        // Falling unsupported content with invalid ContentTypeHeader to be handled as UnknownProtocol
 
     case QNetworkReply::ProtocolUnknownError: {
         if (url.scheme() == QLatin1String("file")) {

src/lib/webview/webview.cpp

@@ -1295,6 +1295,7 @@ void WebView::keyPressEvent(QKeyEvent* event)
             const QString direction = elementHasCursor.styleProperty("direction", QWebElement::ComputedStyle);
             if (direction == QLatin1String("rtl")) {
                 eventKey = eventKey == Qt::Key_Left ? Qt::Key_Right : Qt::Key_Left;
+                // FIXME: !!!!!!!!!!!!
                 QKeyEvent ev(event->type(), eventKey, event->modifiers(), event->text(), event->isAutoRepeat());
                 event = &ev;
             }

src/plugins/GreaseMonkey/gm_downloader.cpp

@@ -34,12 +34,14 @@
 GM_Downloader::GM_Downloader(const QNetworkRequest &request, GM_Manager* manager)
     : QObject()
     , m_manager(manager)
+    , m_widget(0)
 {
     m_reply = new FollowRedirectReply(request.url(), mApp->networkManager());
     connect(m_reply, SIGNAL(finished()), this, SLOT(scriptDownloaded()));
 
     QVariant v = request.attribute((QNetworkRequest::Attribute)(QNetworkRequest::User + 100));
     WebPage* webPage = static_cast<WebPage*>(v.value<void*>());
+
     if (WebPage::isPointerSafeToUse(webPage)) {
         m_widget = webPage->view();
     }

src/plugins/GreaseMonkey/gm_plugin.cpp

@@ -41,7 +41,7 @@ PluginSpec GM_Plugin::pluginSpec()
     spec.name = "GreaseMonkey";
     spec.info = "Userscripts for QupZilla";
     spec.description = "Provides support for userscripts (www.userscripts.org)";
-    spec.version = "0.4.2";
+    spec.version = "0.4.3";
     spec.author = "David Rosca <nowrep@gmail.com>";
     spec.icon = QPixmap(":gm/data/icon.png");
     spec.hasSettings = true;

src/plugins/MouseGestures/3rdparty/QjtMouseGestureFilter.cpp

@@ -133,28 +133,28 @@ bool QjtMouseGestureFilter::eventFilter(QObject* obj, QEvent* event)
 {
     switch (event->type()) {
     case QEvent::MouseButtonPress:
-        if (mouseButtonPressEvent(dynamic_cast<QMouseEvent*>(event), obj)) {
+        if (mouseButtonPressEvent(static_cast<QMouseEvent*>(event), obj)) {
             return true;
         }
 
         break;
 
     case QEvent::MouseButtonRelease:
-        if (mouseButtonReleaseEvent(dynamic_cast<QMouseEvent*>(event), obj)) {
+        if (mouseButtonReleaseEvent(static_cast<QMouseEvent*>(event), obj)) {
             return true;
         }
 
         break;
 
     case QEvent::MouseMove:
-        if (mouseMoveEvent(dynamic_cast<QMouseEvent*>(event), obj)) {
+        if (mouseMoveEvent(static_cast<QMouseEvent*>(event), obj)) {
             return true;
         }
 
         break;
 
     case QEvent::Paint:
-        if (paintEvent(obj, dynamic_cast<QPaintEvent*>(event))) {
+        if (paintEvent(obj, static_cast<QPaintEvent*>(event))) {
             return true;
         }