qquickfilenamefilter.cpp

Enable keyboard shortcuts

// Copyright (C) 2021 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#include "qquickfilenamefilter_p.h"

#include <QtCore/qloggingcategory.h>

QT_BEGIN_NAMESPACE

Q_STATIC_LOGGING_CATEGORY(lcFileNameFilter, "qt.quick.dialogs.qquickfilenamefilter")

QQuickFileNameFilter::QQuickFileNameFilter(QObject *parent)

    : QObject(parent), m_index(-1)

int QQuickFileNameFilter::index() const

    return m_index;

void QQuickFileNameFilter::setIndex(int index)

    if (m_index == index)

        return;

    m_index = index;

    emit indexChanged(index);

QString QQuickFileNameFilter::name() const

    return m_name;

QStringList QQuickFileNameFilter::extensions() const

    return m_extensions;

QStringList QQuickFileNameFilter::globs() const

    return m_globs;

QSharedPointer<QFileDialogOptions> QQuickFileNameFilter::options() const

    return m_options;

void QQuickFileNameFilter::setOptions(const QSharedPointer<QFileDialogOptions> &options)

    m_options = options;

static QString extractName(const QString &filter)

    return filter.left(filter.indexOf(QLatin1Char('(')) - 1);

static QString extractExtension(QStringView filter)

    return filter.mid(filter.indexOf(QLatin1Char('.')) + 1).toString();

static void extractExtensionsAndGlobs(QStringView filter, QStringList &extensions, QStringList &globs)

    extensions.clear();

    globs.clear();

    const int from = filter.indexOf(QLatin1Char('('));

    const int to = filter.lastIndexOf(QLatin1Char(')')) - 1;

    if (from >= 0 && from < to) {

        const QStringView ref = filter.mid(from + 1, to - from);

        const QList<QStringView> exts = ref.split(QLatin1Char(' '), Qt::SkipEmptyParts);

        // For example, given the filter "HTML files (*.html *.htm)",

        // "ref" would be "*.html" and "*.htm".

        for (const QStringView &ref : exts) {

            extensions += extractExtension(ref);

            globs += ref.toString();

void QQuickFileNameFilter::update(const QString &filter)

    const QStringList filters = nameFilters();

    const int oldIndex = m_index;

    const QString oldName = m_name;

    const QStringList oldExtensions = m_extensions;

    const QStringList oldGlobs = m_globs;

    m_index = filters.indexOf(filter);

    m_name = extractName(filter);

    extractExtensionsAndGlobs(filter, m_extensions, m_globs);

    if (oldIndex != m_index)

        emit indexChanged(m_index);

    if (oldName != m_name)

        emit nameChanged(m_name);

    if (oldExtensions != m_extensions)

        emit extensionsChanged(m_extensions);

    if (oldGlobs != m_globs)

        emit globsChanged(m_globs);

    qCDebug(lcFileNameFilter).nospace() << "update called on " << this << " of " << parent()

        << " with filter " << filter << " (current filters are " << filters << "):"

        << "\n    old index=" << oldIndex << "new index=" << m_index

        << "\n    old name=" << oldName << "new name=" << m_name

        << "\n    old extensions=" << oldExtensions << "new extensions=" << m_extensions

        << "\n    old glob=s" << oldGlobs << "new globs=" << m_globs;

QStringList QQuickFileNameFilter::nameFilters() const

    return m_options ? m_options->nameFilters() : QStringList();

QString QQuickFileNameFilter::nameFilter(int index) const

    return m_options ? m_options->nameFilters().value(index) : QString();

QT_END_NAMESPACE

#include "moc_qquickfilenamefilter_p.cpp"