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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 "qquickplatformfiledialog_p.h"
#include <QtCore/qloggingcategory.h>
#include <QtGui/qwindow.h>
#include <QtQml/qqmlcontext.h>
#include <QtQml/qqmlinfo.h>
#include <QtQuick/qquickwindow.h>
#include <QtQuickDialogs2Utils/private/qquickfilenamefilter_p.h>
#include <QtQuickTemplates2/private/qquickdialog_p.h>
#include <QtQuickTemplates2/private/qquickpopup_p_p.h>
#include <QtQuickTemplates2/private/qquickpopupanchors_p.h>
#include "qquickfiledialogimpl_p.h"
QT_BEGIN_NAMESPACE
Q_LOGGING_CATEGORY(lcQuickPlatformFileDialog, "qt.quick.dialogs.quickplatformfiledialog")
/*!
\class QQuickPlatformFileDialog
\internal
An interface that QQuickFileDialog can use to access the non-native Qt Quick FileDialog.
Both this and the native implementations are created in QQuickAbstractDialog::create().
*/
QQuickPlatformFileDialog::QQuickPlatformFileDialog(QObject *parent)
{
qCDebug(lcQuickPlatformFileDialog) << "creating non-native Qt Quick FileDialog with parent" << parent;
// Set a parent so that we get deleted if we can't be shown for whatever reason.
// Our eventual parent should be the window, though.
setParent(parent);
auto qmlContext = ::qmlContext(parent);
if (!qmlContext) {
qmlWarning(parent) << "No QQmlContext for QQuickPlatformFileDialog; can't create non-native FileDialog implementation";
return;
}
const auto dialogQmlUrl = QUrl(QStringLiteral("qrc:/qt-project.org/imports/QtQuick/Dialogs/quickimpl/qml/FileDialog.qml"));
QQmlComponent fileDialogComponent(qmlContext->engine(), dialogQmlUrl, parent);
if (!fileDialogComponent.isReady()) {
qmlWarning(parent) << "Failed to load non-native FileDialog implementation:\n" << fileDialogComponent.errorString();
return;
}
m_dialog = qobject_cast<QQuickFileDialogImpl*>(fileDialogComponent.create());
if (!m_dialog) {
qmlWarning(parent) << "Failed to create an instance of the non-native FileDialog:\n" << fileDialogComponent.errorString();
return;
}
// Give it a parent until it's parented to the window in show().
m_dialog->setParent(this);
connect(m_dialog, &QQuickDialog::accepted, this, &QPlatformDialogHelper::accept);
connect(m_dialog, &QQuickDialog::rejected, this, &QPlatformDialogHelper::reject);
connect(m_dialog, &QQuickFileDialogImpl::fileSelected, this, &QQuickPlatformFileDialog::fileSelected);
// TODO: add support for multiple file selection (QTBUG-92585)
// connect(m_dialog, &QQuickFileDialogImpl::filesSelected, [this](const QList<QString> &files) {
// QList<QUrl> urls;
// urls.reserve(files.count());
// for (const QString &file : files)
// urls += QUrl::fromLocalFile(file);
// emit filesSelected(urls);
// });
connect(m_dialog, &QQuickFileDialogImpl::selectedFileChanged, this, &QQuickPlatformFileDialog::currentChanged);
connect(m_dialog, &QQuickFileDialogImpl::currentFolderChanged, this, &QQuickPlatformFileDialog::directoryEntered);
connect(m_dialog, &QQuickFileDialogImpl::filterSelected, this, &QQuickPlatformFileDialog::filterSelected);
}
bool QQuickPlatformFileDialog::isValid() const
{
return m_dialog;
}
bool QQuickPlatformFileDialog::defaultNameFilterDisables() const
{
return false;
}
void QQuickPlatformFileDialog::setDirectory(const QUrl &directory)
{
if (!m_dialog)
return;
m_dialog->setCurrentFolder(directory);
}
QUrl QQuickPlatformFileDialog::directory() const
{
if (!m_dialog)
return {};
return m_dialog->currentFolder();
}
void QQuickPlatformFileDialog::selectFile(const QUrl &file)
{
if (!m_dialog)
return;
if (m_dialog->isVisible()) {
qWarning() << "Cannot set an initial selectedFile while FileDialog is open";
return;
}
// Since we're only called once each time the FileDialog is shown,
// we call setInitialCurrentFolderAndSelectedFile here, which will ensure that
// the first currentIndex change (to 0, as a result of the ListView's model changing
// as a result of the FolderListModel directory change) is effectively
// ignored and the correct index for the initial selectedFile is maintained.
m_dialog->setInitialCurrentFolderAndSelectedFile(file);
}
// TODO: support for multiple selected files
QList<QUrl> QQuickPlatformFileDialog::selectedFiles() const
{
if (m_dialog->selectedFile().isEmpty())
return {};
return { m_dialog->selectedFile() };
}
void QQuickPlatformFileDialog::setFilter()
{
}
void QQuickPlatformFileDialog::selectNameFilter(const QString &filter)
{
// There is a bit of a problem with order here - QQuickFileDialog::onShow()
// is called before our show(), but it needs to set the selected filter
// (which we can't do in our show() because we don't know about QQuickFileDialog).
// So, delay setting the filter until we're shown. This shouldn't be an issue
// in practice, since it doesn't make sense for the filter to programmatically
// change while the dialog is visible.
m_pendingNameFilter = filter;
}
QString QQuickPlatformFileDialog::selectedNameFilter() const
{
return m_dialog->selectedNameFilter()->name();
}
void QQuickPlatformFileDialog::exec()
{
qCWarning(lcQuickPlatformFileDialog) << "exec() is not supported for the Qt Quick FileDialog fallback";
}
/*!
\internal
This is called after QQuickFileDialog::onShow().
Both are called in QQuickAbstractDialog::open().
*/
bool QQuickPlatformFileDialog::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent)
{
qCDebug(lcQuickPlatformFileDialog) << "show called with flags" << flags <<
"modality" << modality << "parent" << parent;
if (!m_dialog)
return false;
if (!parent)
return false;
auto quickWindow = qobject_cast<QQuickWindow*>(parent);
if (!quickWindow) {
qmlInfo(this->parent()) << "Parent window (" << parent << ") of non-native dialog is not a QQuickWindow";
return false;
}
m_dialog->setParent(parent);
m_dialog->resetParentItem();
auto popupPrivate = QQuickPopupPrivate::get(m_dialog);
popupPrivate->getAnchors()->setCenterIn(m_dialog->parentItem());
QSharedPointer<QFileDialogOptions> options = QPlatformFileDialogHelper::options();
m_dialog->setTitle(options->windowTitle());
m_dialog->setOptions(options);
m_dialog->selectNameFilter(m_pendingNameFilter);
m_pendingNameFilter.clear();
m_dialog->setAcceptLabel(options->isLabelExplicitlySet(QFileDialogOptions::Accept)
? options->labelText(QFileDialogOptions::Accept) : QString());
m_dialog->setRejectLabel(options->isLabelExplicitlySet(QFileDialogOptions::Reject)
? options->labelText(QFileDialogOptions::Reject) : QString());
if (options->initiallySelectedFiles().isEmpty()) {
if (m_dialog->currentFolder().isEmpty()) {
// The user didn't set an initial selectedFile nor currentFolder, so we'll set it to the working directory.
qCDebug(lcQuickPlatformFileDialog) << "- calling setCurrentFolder(QDir()) on quick dialog" << parent;
m_dialog->setCurrentFolder(QUrl::fromLocalFile(QDir().absolutePath()));
}
}
m_dialog->open();
return true;
}
void QQuickPlatformFileDialog::hide()
{
if (!m_dialog)
return;
m_dialog->close();
}
QQuickFileDialogImpl *QQuickPlatformFileDialog::dialog() const
{
return m_dialog;
}
QT_END_NAMESPACE
#include "moc_qquickplatformfiledialog_p.cpp"
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