DOCUMENT: Handle the case when the document is already loaded

src/Document/VivyDocumentStore.cc

@@ -32,6 +32,12 @@ VivyDocumentStore::loadDocument(const QString &file) noexcept
     return ret;
 }
 
+bool
+VivyDocumentStore::isDocumentPresent(const QString &name) noexcept
+{
+    return documents.count(name) >= 1;
+}
+
 VivyDocument *
 VivyDocumentStore::newDocument([[maybe_unused]] const QString &name) noexcept
 {

src/Document/VivyDocumentStore.h

@@ -22,6 +22,9 @@ public:
     [[nodiscard("allocated")]] VivyDocument *loadDocument(const QString &file) noexcept;
     [[nodiscard("allocated")]] VivyDocument *newDocument(const QString &name) noexcept;
 
+    /* Get to see if a document is already present or not */
+    [[nodiscard("handle-it")]] bool isDocumentPresent(const QString &name) noexcept;
+
     /* Close a document, please be sure to not used any of the dangling
      * references to the closed document... */
     void closeDocument(const QString &name) noexcept;

src/MainWindow.cc

@@ -28,6 +28,7 @@ MainWindow::MainWindow(QWidget *parent) noexcept
     documents->setTabsClosable(true);
     documents->setElideMode(Qt::ElideRight);
     documents->setUsesScrollButtons(true);
+    documents->setDocumentMode(true);
     connect(documents, &QTabWidget::tabCloseRequested, this, &MainWindow::closeDocument);
     setCentralWidget(documents);
 
@@ -75,6 +76,11 @@ MainWindow::openDocument() noexcept
     }
 
     QFileInfo fileInfo(filename);
+    const QString baseName = fileInfo.baseName();
+    if (documentStore.isDocumentPresent(baseName)) {
+        qWarning() << "The document " << baseName << " is already loaded";
+        return;
+    }
     qDebug() << "Trying to open file " << filename;
 
     VivyDocument *document = documentStore.loadDocument(filename);