diff options
Diffstat (limited to 'src/imports/platform/qquickplatformfiledialog.cpp')
| -rw-r--r-- | src/imports/platform/qquickplatformfiledialog.cpp | 183 |
1 files changed, 167 insertions, 16 deletions
diff --git a/src/imports/platform/qquickplatformfiledialog.cpp b/src/imports/platform/qquickplatformfiledialog.cpp index 9da774d4..6a0f4e13 100644 --- a/src/imports/platform/qquickplatformfiledialog.cpp +++ b/src/imports/platform/qquickplatformfiledialog.cpp @@ -36,6 +36,8 @@ #include "qquickplatformfiledialog_p.h" +#include <QtCore/qvector.h> + QT_BEGIN_NAMESPACE /*! @@ -97,7 +99,8 @@ QT_BEGIN_NAMESPACE QQuickPlatformFileDialog::QQuickPlatformFileDialog(QObject *parent) : QQuickPlatformDialog(QPlatformTheme::FileDialog, parent), m_fileMode(OpenFile), - m_options(QFileDialogOptions::create()) + m_options(QFileDialogOptions::create()), + m_selectedNameFilter(nullptr) { m_options->setFileMode(QFileDialogOptions::ExistingFile); m_options->setAcceptMode(QFileDialogOptions::AcceptOpen); @@ -335,6 +338,12 @@ void QQuickPlatformFileDialog::setNameFilters(const QStringList &filters) return; m_options->setNameFilters(filters); + if (m_selectedNameFilter) { + int index = m_selectedNameFilter->index(); + if (index < 0 || index >= filters.count()) + index = 0; + m_selectedNameFilter->update(filters.value(index)); + } emit nameFiltersChanged(); } @@ -344,24 +353,57 @@ void QQuickPlatformFileDialog::resetNameFilters() } /*! - \qmlproperty string Qt.labs.platform::FileDialog::selectedNameFilter + \qmlpropertygroup Qt.labs.platform::FileDialog::selectedNameFilter + \qmlproperty int Qt.labs.platform::FileDialog::selectedNameFilter.index + \qmlproperty string Qt.labs.platform::FileDialog::selectedNameFilter.name + \qmlproperty list<string> Qt.labs.platform::FileDialog::selectedNameFilter.extensions + + These properties hold the currently selected name filter. + + \table + \header + \li Name + \li Description + \row + \li \b index : int + \li This property determines which \l {nameFilters}{name filter} is selected. + The specified filter is selected when the dialog is opened. The value is + updated when the user selects another filter. + \row + \li [read-only] \b name : string + \li This property holds the name of the selected filter. In the + example below, the name of the first filter is \c {"Text files"} + and the second is \c {"HTML files"}. + \row + \li [read-only] \b extensions : list<string> + \li This property holds the list of extensions of the selected filter. + In the example below, the list of extensions of the first filter is + \c {["txt"]} and the second is \c {["html", "htm"]}. + \endtable - This property holds the currently selected name filter. + \code + FileDialog { + id: fileDialog + selectedNameFilter.index: 1 + nameFilters: ["Text files (*.txt)", "HTML files (*.html *.htm)"] + } + + MyDocument { + id: document + fileType: fileDialog.selectedNameFilter.extensions[0] + } + \endcode \sa nameFilters */ -QString QQuickPlatformFileDialog::selectedNameFilter() const +QQuickPlatformFileNameFilter *QQuickPlatformFileDialog::selectedNameFilter() const { - if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(handle())) - return fileDialog->selectedNameFilter(); - return m_options->initiallySelectedNameFilter(); -} - -void QQuickPlatformFileDialog::setSelectedNameFilter(const QString &filter) -{ - if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(handle())) - fileDialog->selectNameFilter(filter); - m_options->setInitiallySelectedNameFilter(filter); + if (!m_selectedNameFilter) { + QQuickPlatformFileDialog *that = const_cast<QQuickPlatformFileDialog *>(this); + m_selectedNameFilter = new QQuickPlatformFileNameFilter(that); + m_selectedNameFilter->setOptions(m_options); + } + return m_selectedNameFilter; } /*! @@ -468,7 +510,6 @@ void QQuickPlatformFileDialog::onCreate(QPlatformDialogHelper *dialog) connect(fileDialog, &QPlatformFileDialogHelper::currentChanged, this, &QQuickPlatformFileDialog::currentFileChanged); connect(fileDialog, &QPlatformFileDialogHelper::currentChanged, this, &QQuickPlatformFileDialog::currentFilesChanged); connect(fileDialog, &QPlatformFileDialogHelper::directoryEntered, this, &QQuickPlatformFileDialog::folderChanged); - connect(fileDialog, &QPlatformFileDialogHelper::filterSelected, this, &QQuickPlatformFileDialog::selectedNameFilterChanged); fileDialog->setOptions(m_options); } } @@ -476,8 +517,24 @@ void QQuickPlatformFileDialog::onCreate(QPlatformDialogHelper *dialog) void QQuickPlatformFileDialog::onShow(QPlatformDialogHelper *dialog) { m_options->setWindowTitle(title()); - if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(dialog)) + if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(dialog)) { fileDialog->setOptions(m_options); + if (m_selectedNameFilter) { + const int index = m_selectedNameFilter->index(); + const QString filter = m_options->nameFilters().value(index); + m_options->setInitiallySelectedNameFilter(filter); + fileDialog->selectNameFilter(filter); + connect(fileDialog, &QPlatformFileDialogHelper::filterSelected, m_selectedNameFilter, &QQuickPlatformFileNameFilter::update); + } + } +} + +void QQuickPlatformFileDialog::onHide(QPlatformDialogHelper *dialog) +{ + if (QPlatformFileDialogHelper *fileDialog = qobject_cast<QPlatformFileDialogHelper *>(dialog)) { + if (m_selectedNameFilter) + disconnect(fileDialog, &QPlatformFileDialogHelper::filterSelected, m_selectedNameFilter, &QQuickPlatformFileNameFilter::update); + } } void QQuickPlatformFileDialog::accept() @@ -506,4 +563,98 @@ QList<QUrl> QQuickPlatformFileDialog::addDefaultSuffixes(const QList<QUrl> &file return urls; } +QQuickPlatformFileNameFilter::QQuickPlatformFileNameFilter(QObject *parent) + : QObject(parent), m_index(-1) +{ +} + +int QQuickPlatformFileNameFilter::index() const +{ + return m_index; +} + +void QQuickPlatformFileNameFilter::setIndex(int index) +{ + if (m_index == index) + return; + + m_index = index; + emit indexChanged(index); +} + +QString QQuickPlatformFileNameFilter::name() const +{ + return m_name; +} + +QStringList QQuickPlatformFileNameFilter::extensions() const +{ + return m_extensions; +} + +QSharedPointer<QFileDialogOptions> QQuickPlatformFileNameFilter::options() const +{ + return m_options; +} + +void QQuickPlatformFileNameFilter::setOptions(const QSharedPointer<QFileDialogOptions> &options) +{ + m_options = options; +} + +static QString extractName(const QString &filter) +{ + return filter.left(filter.indexOf(QLatin1Char('(')) - 1); +} + +static QString extractExtension(const QString &filter) +{ + return filter.mid(filter.indexOf(QLatin1Char('.')) + 1); +} + +static QStringList extractExtensions(const QString &filter) +{ + QStringList extensions; + const int from = filter.indexOf(QLatin1Char('(')); + const int to = filter.lastIndexOf(QLatin1Char(')')) - 1; + if (from >= 0 && from < to) { + const QStringRef ref = filter.midRef(from + 1, to - from); + const QVector<QStringRef> exts = ref.split(QLatin1Char(' '), QString::SkipEmptyParts); + for (const QStringRef &ref : exts) + extensions += extractExtension(ref.toString()); + } + + return extensions; +} + +void QQuickPlatformFileNameFilter::update(const QString &filter) +{ + const QStringList filters = nameFilters(); + + const int oldIndex = m_index; + const QString oldName = m_name; + const QStringList oldExtensions = m_extensions; + + m_index = filters.indexOf(filter); + m_name = extractName(filter); + m_extensions = extractExtensions(filter); + + if (oldIndex != m_index) + emit indexChanged(m_index); + if (oldName != m_name) + emit nameChanged(m_name); + if (oldExtensions != m_extensions) + emit extensionsChanged(m_extensions); +} + +QStringList QQuickPlatformFileNameFilter::nameFilters() const +{ + return m_options ? m_options->nameFilters() : QStringList(); +} + +QString QQuickPlatformFileNameFilter::nameFilter(int index) const +{ + return m_options ? m_options->nameFilters().value(index) : QString(); +} + QT_END_NAMESPACE |