qquickfolderdialog.cpp

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// 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
 
#include "qquickfolderdialog_p.h"
 
#include <QtCore/qloggingcategory.h>
#include <QtQml/qqmlfile.h>
 
QT_BEGIN_NAMESPACE
 
Q_DECLARE_LOGGING_CATEGORY(lcDialogs)
 
 
 
QQuickFolderDialog::QQuickFolderDialog(QObject *parent)
    : QQuickAbstractDialog(QQuickDialogType::FolderDialog, parent),
      m_options(QFileDialogOptions::create())
{
    m_options->setFileMode(QFileDialogOptions::Directory);
    m_options->setAcceptMode(QFileDialogOptions::AcceptOpen);
    m_options->setInitialDirectory(QUrl::fromLocalFile(QDir::currentPath()));
}
 
QUrl QQuickFolderDialog::currentFolder() const
{
    if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(handle()))
        return fileDialog->directory();
    return m_options->initialDirectory();
}
 
void QQuickFolderDialog::setCurrentFolder(const QUrl &folder)
{
    if (folder == m_options->initialDirectory())
        return;
 
    m_options->setInitialDirectory(folder);
    emit currentFolderChanged();
}
 
QUrl QQuickFolderDialog::selectedFolder() const
{
    if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(handle())) {
        const QList<QUrl> selectedFiles = fileDialog->selectedFiles();
        if (!selectedFiles.isEmpty())
            return selectedFiles.first();
    }
    return QUrl();
}
 
void QQuickFolderDialog::setSelectedFolder(const QUrl &folder)
{
    if (folder == selectedFolder())
        return;
 
    if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(handle())) {
        fileDialog->selectFile(folder);
        emit selectedFolderChanged();
    }
}
 
QFileDialogOptions::FileDialogOptions QQuickFolderDialog::options() const
{
    return m_options->options();
}
 
void QQuickFolderDialog::setOptions(QFileDialogOptions::FileDialogOptions options)
{
    if (options == m_options->options())
        return;
 
    m_options->setOptions(options);
    emit optionsChanged();
}
 
void QQuickFolderDialog::resetOptions()
{
    setOptions({});
}
 
QString QQuickFolderDialog::acceptLabel() const
{
    return m_options->labelText(QFileDialogOptions::Accept);
}
 
void QQuickFolderDialog::setAcceptLabel(const QString &label)
{
    if (label == m_options->labelText(QFileDialogOptions::Accept))
        return;
 
    m_options->setLabelText(QFileDialogOptions::Accept, label);
    emit acceptLabelChanged();
}
 
void QQuickFolderDialog::resetAcceptLabel()
{
    setAcceptLabel(QString());
}
 
QString QQuickFolderDialog::rejectLabel() const
{
    return m_options->labelText(QFileDialogOptions::Reject);
}
 
void QQuickFolderDialog::setRejectLabel(const QString &label)
{
    if (label == m_options->labelText(QFileDialogOptions::Reject))
        return;
 
    m_options->setLabelText(QFileDialogOptions::Reject, label);
    emit rejectLabelChanged();
}
 
void QQuickFolderDialog::resetRejectLabel()
{
    setRejectLabel(QString());
}
 
bool QQuickFolderDialog::useNativeDialog() const
{
    if (!QQuickAbstractDialog::useNativeDialog())
        return false;
 
    if (m_options->testOption(QFileDialogOptions::DontUseNativeDialog)) {
        qCDebug(lcDialogs) << "  - the FolderDialog was told not to use a native dialog; not using native dialog";
        return false;
    }
 
    return true;
}
 
void QQuickFolderDialog::onCreate(QPlatformDialogHelper *dialog)
{
    if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(dialog)) {
        connect(fileDialog, &QPlatformFileDialogHelper::directoryEntered, this, &QQuickFolderDialog::currentFolderChanged);
        connect(fileDialog, &QPlatformFileDialogHelper::currentChanged, this, &QQuickFolderDialog::selectedFolderChanged);
        fileDialog->setOptions(m_options);
    }
}
 
void QQuickFolderDialog::onShow(QPlatformDialogHelper *dialog)
{
    m_options->setWindowTitle(title());
    if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(dialog)) {
        fileDialog->setOptions(m_options);
 
        const QUrl initialDir = m_options->initialDirectory();
        // If it's not valid, we shouldn't set it.
        if (m_firstShow && initialDir.isValid() && QDir(QQmlFile::urlToLocalFileOrQrc(initialDir)).exists())
            fileDialog->setDirectory(m_options->initialDirectory());
    }
    QQuickAbstractDialog::onShow(dialog);
}
 
QT_END_NAMESPACE
 
#include "moc_qquickfolderdialog_p.cpp"