Fixed bug with starting up if the local socket wasn't cleaned up

7 files changed, 64 insertions, 43 deletions

diff --git a/smolbote.qbs b/smolbote.qbs
index 0637da3..045f8ce 100644
--- a/smolbote.qbs
+++ b/smolbote.qbs
@@ -65,6 +65,7 @@ Project {
                 defines.push("QT_DEPRECATED_WARNINGS", "QT_DISABLE_DEPRECATED_BEFORE="+project.deprecatedBefore);
             return defines;
         }
+        cpp.cxxLanguageVersion: "c++14"
 
         Group {
             name: "main"
diff --git a/src/browser.cpp b/src/browser.cpp
index 897b0ad..c01c165 100644
--- a/src/browser.cpp
+++ b/src/browser.cpp
@@ -30,15 +30,12 @@
 Browser::Browser(int &argc, char *argv[]) :
     SingleApplication(argc, argv)
 {
-    m_settings = nullptr;
-
-    m_networkAccessManager = nullptr;
-    m_urlRequestInterceptor = nullptr;
-    m_bookmarksManager = nullptr;
-    m_downloadManager = nullptr;
-    m_blocklistManager = nullptr;
-
-    m_plugin = nullptr;
+    setApplicationName("smolbote");
+#ifdef GIT_VERSION
+    setApplicationVersion(GIT_VERSION);
+#else
+    setApplicationVersion("1.0.0");
+#endif
 }
 
 Browser::~Browser()
@@ -208,23 +205,27 @@ void Browser::loadSettings(const QString &path)
 #endif
 }
 
-MainWindow *Browser::mainWindow()
+MainWindow *Browser::activeWindow()
 {
-    if(m_windows.isEmpty()) {
+    if(m_windows.empty()) {
         addWindow(new MainWindow());
     }
-    return m_windows.first();
+
+    for(auto it = m_windows.cbegin(); it != m_windows.cend(); it++) {
+        if(it->data()->isActiveWindow()) {
+            return it->data();
+        }
+    }
+    return m_windows.first().data();
 }
 
 void Browser::addWindow(MainWindow *window)
 {
-    if(m_windows.contains(window)) {
-        return;
-    }
+    Q_ASSERT(window != nullptr);
 
-    m_windows.append(window);
-    connect(window, &QObject::destroyed, [this, window]() {
-        this->removeWindow(window);
+    m_windows.append(QPointer<MainWindow>(window));
+    connect(window, &QObject::destroyed, [this]() {
+        this->clean();
     });
 
     window->show();
@@ -237,9 +238,13 @@ MainWindow *Browser::addWindow(const QStringList params)
     return w;
 }
 
-void Browser::removeWindow(MainWindow *window)
+void Browser::clean()
 {
-    m_windows.removeOne(window);
+    for(int i = m_windows.size(); i >= 0; i--) {
+        if(m_windows[i].isNull()) {
+            m_windows.removeAt(i);
+        }
+    }
 }
 
 WebEngineProfile* Browser::profile(const QString name)
diff --git a/src/browser.h b/src/browser.h
index 0edaf0c..43ff1f4 100644
--- a/src/browser.h
+++ b/src/browser.h
@@ -22,7 +22,6 @@
 #define BROWSER_H
 
 #include "singleapplication.h"
-#include <QVector>
 #include <bookmarks/bookmarkswidget.h>
 #include "forms/downloadswidget.h"
 #include "settings.h"
@@ -34,8 +33,9 @@
 
 #ifdef qApp
 #undef qApp
-#define qApp Browser::instance()
 #endif
+#define qApp Browser::instance()
+
 #define sSettings Browser::instance()->settings()
 #define sNetwork Browser::instance()->network()
 
@@ -45,7 +45,7 @@ class Browser : public SingleApplication
     Q_OBJECT
 
 public:
-    Browser(int &argc, char *argv[]);
+    explicit Browser(int &argc, char *argv[]);
     ~Browser();
 
     QString applicationLongVersion() const;
@@ -62,7 +62,7 @@ public:
     DownloadsWidget *downloads();
     BlockerManager *blocklists();
 
-    MainWindow *mainWindow();
+    MainWindow *activeWindow();
 
     WebEngineProfile *profile(const QString name);
     QStringList profiles();
@@ -73,21 +73,23 @@ public:
 public slots:
     void addWindow(MainWindow* window);
     MainWindow *addWindow(const QStringList params);
-    void removeWindow(MainWindow* window);
+    void clean();
 
 private:
-    Settings *m_settings;
+    Q_DISABLE_COPY(Browser)
+
+    Settings *m_settings = nullptr;
 
-    QVector<MainWindow *> m_windows;
+    QVector<QPointer<MainWindow>> m_windows;
     QHash<QString, WebEngineProfile *> m_profiles;
 
-    QNetworkAccessManager *m_networkAccessManager;
-    UrlRequestInterceptor *m_urlRequestInterceptor;
-    BookmarksWidget *m_bookmarksManager;
-    DownloadsWidget *m_downloadManager;
-    BlockerManager *m_blocklistManager;
+    QNetworkAccessManager *m_networkAccessManager = nullptr;
+    UrlRequestInterceptor *m_urlRequestInterceptor = nullptr;
+    BookmarksWidget *m_bookmarksManager = nullptr;
+    DownloadsWidget *m_downloadManager = nullptr;
+    BlockerManager *m_blocklistManager = nullptr;
 
-    QObject *m_plugin;
+    QObject *m_plugin = nullptr;
 
 };
 
diff --git a/src/main.cpp b/src/main.cpp
index 36a30da..86b39db 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -41,12 +41,6 @@ int main(int argc, char *argv[])
 {
     // Create application object
     Browser app(argc, argv);
-    app.setApplicationName("smolbote");
-#ifdef GIT_VERSION
-    app.setApplicationVersion(GIT_VERSION);
-#else
-    app.setApplicationVersion("1.0.0");
-#endif
 
     // parse command line options
     QCommandLineParser parser;
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 7f8e251..398e460 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -68,6 +68,8 @@ private slots:
     void handleTitleUpdated(const QString &title);
 
 private:
+    Q_DISABLE_COPY(MainWindow)
+
     Ui::MainWindow *ui;
     QToolBar *navigationToolBar, *tabToolBar;
     WebViewTabBar *tabBar;
diff --git a/src/singleapplication.cpp b/src/singleapplication.cpp
index 01b2e65..331268b 100644
--- a/src/singleapplication.cpp
+++ b/src/singleapplication.cpp
@@ -38,10 +38,22 @@ SingleApplication::~SingleApplication()
 void SingleApplication::bindLocalSocket()
 {
     m_localServer = new QLocalServer(this);
-    connect(m_localServer, SIGNAL(newConnection()), this, SLOT(slot_receiveMessage()));
+    connect(m_localServer, &QLocalServer::newConnection, this, &SingleApplication::slot_receiveMessage);
 
-    if(!m_localServer->listen(LOCALSERVER_KEY)) {
-        qWarning("Cannot bind local server [%s]", qUtf8Printable(LOCALSERVER_KEY));
+    // check for running local server by connecting to it
+    QLocalSocket socket;
+    socket.connectToServer(LOCALSERVER_KEY);
+    if(socket.waitForConnected(LOCALSERVER_TIMEOUT)) {
+        // there is another server
+        qWarning("Another server is running");
+        socket.close();
+        return;
+    } else {
+        // no other server
+        QLocalServer::removeServer(LOCALSERVER_KEY);
+        if(!m_localServer->listen(LOCALSERVER_KEY)) {
+            qWarning("Cannot bind local server [%s]", qUtf8Printable(LOCALSERVER_KEY));
+        }
     }
 
 }
@@ -80,6 +92,11 @@ void SingleApplication::slot_receiveMessage()
 
     QByteArray argumentData = socket->readAll();
 
+    // skip if we got no data
+    if(argumentData.isEmpty()) {
+        return;
+    }
+
     QHash<QString, QVariant> params;
     QDataStream ds(argumentData);
     ds >> params;
diff --git a/src/singleapplication.h b/src/singleapplication.h
index e14625a..b512b34 100644
--- a/src/singleapplication.h
+++ b/src/singleapplication.h
@@ -44,7 +44,7 @@ private slots:
 
 private:
     const int LOCALSERVER_TIMEOUT = 500;
-    const QString LOCALSERVER_KEY = "smolbote_KEY";
+    const QString LOCALSERVER_KEY = "smolbote_socket";
 
     QLocalServer *m_localServer;
 };