Method loadFile

src/documentmanager.cpp:718–793

}

bool DocumentManagerPrivate::loadFile(const Bookmark &location)
{
    Q_Q(DocumentManager);

    QFile inputFile(location.filePath());

    if (!inputFile.open(QIODevice::ReadOnly)) {
        MessageBoxHelper::critical(editor, DocumentManager::tr("Could not read %1").arg(location.filePath()), inputFile.errorString());

        return false;
    }

    // NOTE: Must set editor's text cursor to the beginning
    // of the document before clearing the document/editor
    // of text to prevent a crash in Qt 5.10 on opening or
    // reloading a file if a file has already been previously
    // opened in the editor.
    //
    QTextCursor cursor(document);
    cursor.setPosition(0);
    editor->setTextCursor(cursor);

    document->clearUndoRedoStacks();
    document->setUndoRedoEnabled(false);
    document->clear();

    QApplication::setOverrideCursor(Qt::WaitCursor);
    emit q->operationStarted(DocumentManager::tr("opening %1").arg(location.filePath()));
    QTextStream inStream(&inputFile);

    // Markdown files need to be in UTF-8 format, so assume that is
    // what the user is opening by default.  Enable autodetection
    // of of UTF-16 or UTF-32 BOM in case the file isn't UTF-8 encoded.
    //
    inStream.setEncoding(QStringConverter::Utf8);
    inStream.setAutoDetectUnicode(true);

    QString text = inStream.readAll();

    if (QFile::NoError != inputFile.error()) {
        MessageBoxHelper::critical(editor, DocumentManager::tr("Could not read %1").arg(location.filePath()), inputFile.errorString());

        inputFile.close();
        return false;
    }

    inputFile.close();

    setFilePath(location.filePath());
    editor->setPlainText(text);
    editor->navigateDocument(0);
    emit q->operationUpdate();

    document->setUndoRedoEnabled(true);

    editor->navigateDocument(location.cursorPosition());
    editor->setReadOnly(!location.isWriteable());
    document->setReadOnly(!location.isWriteable());