Copy filepicker classes from gtk3_kde5, don't build yet

Change-Id: Ic18add9e1e0a6a7e4480df17885670a0796f074a

4 files changed, 949 insertions, 0 deletions

diff --git a/vcl/unx/kde5/KDE5FilePicker.cxx b/vcl/unx/kde5/KDE5FilePicker.cxx
new file mode 100644
index 000000000000..f3b48b837836
--- /dev/null
+++ b/vcl/unx/kde5/KDE5FilePicker.cxx
@@ -0,0 +1,246 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "kde5_filepicker.hxx"
+
+#include <KWindowSystem>
+#include <KFileWidget>
+
+#include <QtCore/QDebug>
+#include <QtCore/QUrl>
+#include <QtGui/QClipboard>
+#include <QtGui/QWindow>
+#include <QtWidgets/QCheckBox>
+#include <QtWidgets/QFileDialog>
+#include <QtWidgets/QGridLayout>
+#include <QtWidgets/QWidget>
+#include <QtWidgets/QApplication>
+
+// KDE5FilePicker
+
+KDE5FilePicker::KDE5FilePicker(QObject* parent)
+    : QObject(parent)
+    , _dialog(new QFileDialog(nullptr, {}, QDir::homePath()))
+    , _extraControls(new QWidget)
+    , _layout(new QGridLayout(_extraControls))
+    , _winId(0)
+    , allowRemoteUrls(false)
+{
+    _dialog->setSupportedSchemes({
+        QStringLiteral("file"),
+        QStringLiteral("ftp"),
+        QStringLiteral("http"),
+        QStringLiteral("https"),
+        QStringLiteral("webdav"),
+        QStringLiteral("webdavs"),
+        QStringLiteral("smb"),
+    });
+
+    setMultiSelectionMode(false);
+
+    connect(_dialog, &QFileDialog::filterSelected, this, &KDE5FilePicker::filterChanged);
+    connect(_dialog, &QFileDialog::fileSelected, this, &KDE5FilePicker::selectionChanged);
+
+    qApp->installEventFilter(this);
+}
+
+void KDE5FilePicker::enableFolderMode()
+{
+    _dialog->setOption(QFileDialog::ShowDirsOnly, true);
+    _dialog->setFileMode(QFileDialog::Directory);
+}
+
+KDE5FilePicker::~KDE5FilePicker()
+{
+    delete _extraControls;
+    delete _dialog;
+}
+
+void KDE5FilePicker::setTitle(const QString& title) { _dialog->setWindowTitle(title); }
+
+bool KDE5FilePicker::execute()
+{
+    if (!_filters.isEmpty())
+        _dialog->setNameFilters(_filters);
+    if (!_currentFilter.isEmpty())
+        _dialog->selectNameFilter(_currentFilter);
+
+    _dialog->show();
+    //block and wait for user input
+    return _dialog->exec() == QFileDialog::Accepted;
+}
+
+void KDE5FilePicker::setMultiSelectionMode(bool multiSelect)
+{
+    _dialog->setFileMode(multiSelect ? QFileDialog::ExistingFiles : QFileDialog::ExistingFile);
+}
+
+void KDE5FilePicker::setDefaultName(const QString& name) { _dialog->selectUrl(QUrl(name)); }
+
+void KDE5FilePicker::setDisplayDirectory(const QString& dir) { _dialog->selectUrl(QUrl(dir)); }
+
+QString KDE5FilePicker::getDisplayDirectory() const { return _dialog->directoryUrl().url(); }
+
+QList<QUrl> KDE5FilePicker::getSelectedFiles() const { return _dialog->selectedUrls(); }
+
+void KDE5FilePicker::appendFilter(const QString& title, const QString& filter)
+{
+    QString t = title;
+    QString f = filter;
+    // '/' need to be escaped else they are assumed to be mime types by kfiledialog
+    //see the docs
+    t.replace("/", "\\/");
+
+    // openoffice gives us filters separated by ';' qt dialogs just want space separated
+    f.replace(";", " ");
+
+    // make sure "*.*" is not used as "all files"
+    f.replace("*.*", "*");
+
+    _filters << QStringLiteral("%1 (%2)").arg(t, f);
+    _titleToFilters[t] = _filters.constLast();
+}
+
+void KDE5FilePicker::setCurrentFilter(const QString& title)
+{
+    _currentFilter = _titleToFilters.value(title);
+}
+
+QString KDE5FilePicker::getCurrentFilter() const
+{
+    QString filter = _titleToFilters.key(_dialog->selectedNameFilter());
+
+    //default if not found
+    if (filter.isEmpty())
+        filter = "ODF Text Document (.odt)";
+
+    return filter;
+}
+
+void KDE5FilePicker::setValue(sal_Int16 controlId, sal_Int16 /*nControlAction*/, bool value)
+{
+    if (_customWidgets.contains(controlId))
+    {
+        QCheckBox* cb = dynamic_cast<QCheckBox*>(_customWidgets.value(controlId));
+        if (cb)
+            cb->setChecked(value);
+    }
+    else
+        qWarning() << "set value on unknown control" << controlId;
+}
+
+bool KDE5FilePicker::getValue(sal_Int16 controlId, sal_Int16 /*nControlAction*/) const
+{
+    bool ret = false;
+    if (_customWidgets.contains(controlId))
+    {
+        QCheckBox* cb = dynamic_cast<QCheckBox*>(_customWidgets.value(controlId));
+        if (cb)
+            ret = cb->isChecked();
+    }
+    else
+        qWarning() << "get value on unknown control" << controlId;
+
+    return ret;
+}
+
+void KDE5FilePicker::enableControl(sal_Int16 controlId, bool enable)
+{
+    if (_customWidgets.contains(controlId))
+        _customWidgets.value(controlId)->setEnabled(enable);
+    else
+        qWarning() << "enable on unknown control" << controlId;
+}
+
+void KDE5FilePicker::setLabel(sal_Int16 controlId, const QString& label)
+{
+    if (_customWidgets.contains(controlId))
+    {
+        QCheckBox* cb = dynamic_cast<QCheckBox*>(_customWidgets.value(controlId));
+        if (cb)
+            cb->setText(label);
+    }
+    else
+        qWarning() << "set label on unknown control" << controlId;
+}
+
+QString KDE5FilePicker::getLabel(sal_Int16 controlId) const
+{
+    QString label;
+    if (_customWidgets.contains(controlId))
+    {
+        QCheckBox* cb = dynamic_cast<QCheckBox*>(_customWidgets.value(controlId));
+        if (cb)
+            label = cb->text();
+    }
+    else
+        qWarning() << "get label on unknown control" << controlId;
+
+    return label;
+}
+
+void KDE5FilePicker::addCheckBox(sal_Int16 controlId, const QString& label, bool hidden)
+{
+    auto resString = label;
+    resString.replace('~', '&');
+
+    auto widget = new QCheckBox(resString, _extraControls);
+    widget->setHidden(hidden);
+    if (!hidden)
+    {
+        _layout->addWidget(widget);
+    }
+    _customWidgets.insert(controlId, widget);
+}
+
+void KDE5FilePicker::initialize(bool saveDialog)
+{
+    //default is opening
+    QFileDialog::AcceptMode operationMode
+        = saveDialog ? QFileDialog::AcceptSave : QFileDialog::AcceptOpen;
+
+    _dialog->setAcceptMode(operationMode);
+
+    if (saveDialog)
+    {
+        _dialog->setConfirmOverwrite(true);
+        _dialog->setFileMode(QFileDialog::AnyFile);
+    }
+}
+
+void KDE5FilePicker::setWinId(sal_uIntPtr winId) { _winId = winId; }
+
+bool KDE5FilePicker::eventFilter(QObject* o, QEvent* e)
+{
+    if (e->type() == QEvent::Show && o->isWidgetType())
+    {
+        auto* w = static_cast<QWidget*>(o);
+        if (!w->parentWidget() && w->isModal())
+        {
+            KWindowSystem::setMainWindow(w, _winId);
+            if (auto* fileWidget = w->findChild<KFileWidget*>({}, Qt::FindDirectChildrenOnly))
+                fileWidget->setCustomWidget(_extraControls);
+        }
+    }
+    return QObject::eventFilter(o, e);
+}
+
+#include <kde5_filepicker.moc>
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/kde5/KDE5FilePicker.hxx b/vcl/unx/kde5/KDE5FilePicker.hxx
new file mode 100644
index 000000000000..d999f7bf7a09
--- /dev/null
+++ b/vcl/unx/kde5/KDE5FilePicker.hxx
@@ -0,0 +1,110 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <QtCore/QObject>
+#include <QtCore/QString>
+#include <QtCore/QStringList>
+#include <QtCore/QHash>
+
+#include <sal/types.h>
+
+class QFileDialog;
+class QWidget;
+class QGridLayout;
+
+class KDE5FilePicker : public QObject
+{
+    Q_OBJECT
+protected:
+    //the dialog to display
+    QFileDialog* _dialog;
+
+    //running filter string to add to dialog
+    QStringList _filters;
+    // map of filter titles to full filter for selection
+    QHash<QString, QString> _titleToFilters;
+    // string to set the current filter
+    QString _currentFilter;
+
+    //mapping of SAL control ID's to created custom controls
+    QHash<sal_Int16, QWidget*> _customWidgets;
+
+    //widget to contain extra custom controls
+    QWidget* _extraControls;
+
+    //layout for extra custom controls
+    QGridLayout* _layout;
+
+    sal_uIntPtr _winId;
+
+    bool allowRemoteUrls;
+
+public:
+    explicit KDE5FilePicker(QObject* parent = nullptr);
+    ~KDE5FilePicker() override;
+
+    void enableFolderMode();
+
+    // XExecutableDialog functions
+    void setTitle(const QString& rTitle);
+    bool execute();
+
+    // XFilePicker functions
+    void setMultiSelectionMode(bool bMode);
+    void setDefaultName(const QString& rName);
+    void setDisplayDirectory(const QString& rDirectory);
+    QString getDisplayDirectory() const;
+
+    // XFilterManager functions
+    void appendFilter(const QString& rTitle, const QString& rFilter);
+    void setCurrentFilter(const QString& rTitle);
+    QString getCurrentFilter() const;
+
+    // XFilePickerControlAccess functions
+    void setValue(sal_Int16 nControlId, sal_Int16 nControlAction, bool rValue);
+    bool getValue(sal_Int16 nControlId, sal_Int16 nControlAction) const;
+    void enableControl(sal_Int16 nControlId, bool bEnable);
+    void setLabel(sal_Int16 nControlId, const QString& rLabel);
+    QString getLabel(sal_Int16 nControlId) const;
+
+    // XFilePicker2 functions
+    QList<QUrl> getSelectedFiles() const;
+
+    // XInitialization
+    void initialize(bool saveDialog);
+
+    //add a custom control widget to the file dialog
+    void addCheckBox(sal_Int16 nControlId, const QString& label, bool hidden);
+
+    void setWinId(sal_uIntPtr winId);
+
+private:
+    Q_DISABLE_COPY(KDE5FilePicker)
+
+protected:
+    bool eventFilter(QObject* watched, QEvent* event) override;
+
+Q_SIGNALS:
+    void filterChanged();
+    void selectionChanged();
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/kde5/KDE5FilePicker2.cxx b/vcl/unx/kde5/KDE5FilePicker2.cxx
new file mode 100644
index 000000000000..011769091f6d
--- /dev/null
+++ b/vcl/unx/kde5/KDE5FilePicker2.cxx
@@ -0,0 +1,457 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "gtk3_kde5_filepicker.hxx"
+
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <cppuhelper/interfacecontainer.h>
+#include <cppuhelper/supportsservice.hxx>
+#include <com/sun/star/ui/dialogs/TemplateDescription.hpp>
+#include <com/sun/star/ui/dialogs/CommonFilePickerElementIds.hpp>
+#include <com/sun/star/ui/dialogs/ExtendedFilePickerElementIds.hpp>
+#include <com/sun/star/ui/dialogs/ControlActions.hpp>
+#include <com/sun/star/ui/dialogs/ExecutableDialogResults.hpp>
+
+#include <osl/mutex.hxx>
+
+#include <fpicker/strings.hrc>
+
+#include "FPServiceInfo.hxx"
+
+#undef Region
+
+#include <unx/geninst.h>
+
+#include <strings.hrc>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::ui::dialogs;
+using namespace ::com::sun::star::ui::dialogs::TemplateDescription;
+using namespace ::com::sun::star::ui::dialogs::ExtendedFilePickerElementIds;
+using namespace ::com::sun::star::ui::dialogs::CommonFilePickerElementIds;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::uno;
+
+// helper functions
+
+namespace
+{
+uno::Sequence<OUString> FilePicker_getSupportedServiceNames()
+{
+    uno::Sequence<OUString> aRet(3);
+    aRet[0] = "com.sun.star.ui.dialogs.FilePicker";
+    aRet[1] = "com.sun.star.ui.dialogs.SystemFilePicker";
+    aRet[2] = "com.sun.star.ui.dialogs.KDE5FilePicker2";
+    return aRet;
+}
+}
+
+// KDE5FilePicker2
+
+KDE5FilePicker2::KDE5FilePicker2(const uno::Reference<uno::XComponentContext>&)
+    : KDE5FilePicker2_Base(_helperMutex)
+{
+    setMultiSelectionMode(false);
+}
+
+KDE5FilePicker2::~KDE5FilePicker2() = default;
+
+void SAL_CALL
+KDE5FilePicker2::addFilePickerListener(const uno::Reference<XFilePickerListener>& xListener)
+{
+    SolarMutexGuard aGuard;
+    m_xListener = xListener;
+}
+
+void SAL_CALL KDE5FilePicker2::removeFilePickerListener(const uno::Reference<XFilePickerListener>&)
+{
+    SolarMutexGuard aGuard;
+    m_xListener.clear();
+}
+
+void SAL_CALL KDE5FilePicker2::setTitle(const OUString& title)
+{
+    m_ipc.sendCommand(Commands::SetTitle, title);
+}
+
+sal_Int16 SAL_CALL KDE5FilePicker2::execute() { return m_ipc.execute(); }
+
+void SAL_CALL KDE5FilePicker2::setMultiSelectionMode(sal_Bool multiSelect)
+{
+    m_ipc.sendCommand(Commands::SetMultiSelectionMode, bool(multiSelect));
+}
+
+void SAL_CALL KDE5FilePicker2::setDefaultName(const OUString& name)
+{
+    m_ipc.sendCommand(Commands::SetDefaultName, name);
+}
+
+void SAL_CALL KDE5FilePicker2::setDisplayDirectory(const OUString& dir)
+{
+    m_ipc.sendCommand(Commands::SetDisplayDirectory, dir);
+}
+
+OUString SAL_CALL KDE5FilePicker2::getDisplayDirectory()
+{
+    auto id = m_ipc.sendCommand(Commands::GetDisplayDirectory);
+    OUString dir;
+    m_ipc.readResponse(id, dir);
+    return dir;
+}
+
+uno::Sequence<OUString> SAL_CALL KDE5FilePicker2::getFiles()
+{
+    uno::Sequence<OUString> seq = getSelectedFiles();
+    if (seq.getLength() > 1)
+        seq.realloc(1);
+    return seq;
+}
+
+uno::Sequence<OUString> SAL_CALL KDE5FilePicker2::getSelectedFiles()
+{
+    auto id = m_ipc.sendCommand(Commands::GetSelectedFiles);
+    uno::Sequence<OUString> seq;
+    m_ipc.readResponse(id, seq);
+    return seq;
+}
+
+void SAL_CALL KDE5FilePicker2::appendFilter(const OUString& title, const OUString& filter)
+{
+    m_ipc.sendCommand(Commands::AppendFilter, title, filter);
+}
+
+void SAL_CALL KDE5FilePicker2::setCurrentFilter(const OUString& title)
+{
+    m_ipc.sendCommand(Commands::SetCurrentFilter, title);
+}
+
+OUString SAL_CALL KDE5FilePicker2::getCurrentFilter()
+{
+    auto id = m_ipc.sendCommand(Commands::GetCurrentFilter);
+    OUString filter;
+    m_ipc.readResponse(id, filter);
+    return filter;
+}
+
+void SAL_CALL KDE5FilePicker2::appendFilterGroup(const OUString& /*rGroupTitle*/,
+                                                 const uno::Sequence<beans::StringPair>& filters)
+{
+    const sal_uInt16 length = filters.getLength();
+    for (sal_uInt16 i = 0; i < length; ++i)
+    {
+        beans::StringPair aPair = filters[i];
+        appendFilter(aPair.First, aPair.Second);
+    }
+}
+
+void SAL_CALL KDE5FilePicker2::setValue(sal_Int16 controlId, sal_Int16 nControlAction,
+                                        const uno::Any& value)
+{
+    if (value.has<bool>())
+    {
+        m_ipc.sendCommand(Commands::SetValue, controlId, nControlAction, value.get<bool>());
+    }
+    else
+    {
+        OSL_TRACE("set value of unhandled type %d", controlId);
+    }
+}
+
+uno::Any SAL_CALL KDE5FilePicker2::getValue(sal_Int16 controlId, sal_Int16 nControlAction)
+{
+    if (CHECKBOX_AUTOEXTENSION == controlId)
+        // We ignore this one and rely on QFileDialog to provide the function.
+        // Always return false, to pretend we do not support this, otherwise
+        // LO core would try to be smart and cut the extension in some places,
+        // interfering with QFileDialog's handling of it. QFileDialog also
+        // saves the value of the setting, so LO core is not needed for that either.
+        return uno::Any(false);
+
+    auto id = m_ipc.sendCommand(Commands::GetValue, controlId, nControlAction);
+
+    bool value = false;
+    m_ipc.readResponse(id, value);
+
+    return uno::Any(value);
+}
+
+void SAL_CALL KDE5FilePicker2::enableControl(sal_Int16 controlId, sal_Bool enable)
+{
+    m_ipc.sendCommand(Commands::EnableControl, controlId, bool(enable));
+}
+
+void SAL_CALL KDE5FilePicker2::setLabel(sal_Int16 controlId, const OUString& label)
+{
+    m_ipc.sendCommand(Commands::SetLabel, controlId, label);
+}
+
+OUString SAL_CALL KDE5FilePicker2::getLabel(sal_Int16 controlId)
+{
+    auto id = m_ipc.sendCommand(Commands::GetLabel, controlId);
+    OUString label;
+    m_ipc.readResponse(id, label);
+    return label;
+}
+
+void KDE5FilePicker2::addCustomControl(sal_Int16 controlId)
+{
+    const char* resId = nullptr;
+
+    switch (controlId)
+    {
+        case CHECKBOX_AUTOEXTENSION:
+            resId = STR_FPICKER_AUTO_EXTENSION;
+            break;
+        case CHECKBOX_PASSWORD:
+            resId = STR_FPICKER_PASSWORD;
+            break;
+        case CHECKBOX_FILTEROPTIONS:
+            resId = STR_FPICKER_FILTER_OPTIONS;
+            break;
+        case CHECKBOX_READONLY:
+            resId = STR_FPICKER_READONLY;
+            break;
+        case CHECKBOX_LINK:
+            resId = STR_FPICKER_INSERT_AS_LINK;
+            break;
+        case CHECKBOX_PREVIEW:
+            resId = STR_FPICKER_SHOW_PREVIEW;
+            break;
+        case CHECKBOX_SELECTION:
+            resId = STR_FPICKER_SELECTION;
+            break;
+        case CHECKBOX_GPGENCRYPTION:
+            resId = STR_FPICKER_GPGENCRYPT;
+            break;
+        case PUSHBUTTON_PLAY:
+            resId = STR_FPICKER_PLAY;
+            break;
+        case LISTBOX_VERSION:
+            resId = STR_FPICKER_VERSION;
+            break;
+        case LISTBOX_TEMPLATE:
+            resId = STR_FPICKER_TEMPLATES;
+            break;
+        case LISTBOX_IMAGE_TEMPLATE:
+            resId = STR_FPICKER_IMAGE_TEMPLATE;
+            break;
+        case LISTBOX_IMAGE_ANCHOR:
+            resId = STR_FPICKER_IMAGE_ANCHOR;
+            break;
+        case LISTBOX_VERSION_LABEL:
+        case LISTBOX_TEMPLATE_LABEL:
+        case LISTBOX_IMAGE_TEMPLATE_LABEL:
+        case LISTBOX_IMAGE_ANCHOR_LABEL:
+        case LISTBOX_FILTER_SELECTOR:
+            break;
+    }
+
+    switch (controlId)
+    {
+        case CHECKBOX_AUTOEXTENSION:
+        case CHECKBOX_PASSWORD:
+        case CHECKBOX_FILTEROPTIONS:
+        case CHECKBOX_READONLY:
+        case CHECKBOX_LINK:
+        case CHECKBOX_PREVIEW:
+        case CHECKBOX_SELECTION:
+        case CHECKBOX_GPGENCRYPTION:
+        {
+            // the checkbox is created even for CHECKBOX_AUTOEXTENSION to simplify
+            // code, but the checkbox is hidden and ignored
+            bool hidden = controlId == CHECKBOX_AUTOEXTENSION;
+
+            m_ipc.sendCommand(Commands::AddCheckBox, controlId, hidden, getResString(resId));
+
+            break;
+        }
+        case PUSHBUTTON_PLAY:
+        case LISTBOX_VERSION:
+        case LISTBOX_TEMPLATE:
+        case LISTBOX_IMAGE_TEMPLATE:
+        case LISTBOX_IMAGE_ANCHOR:
+        case LISTBOX_VERSION_LABEL:
+        case LISTBOX_TEMPLATE_LABEL:
+        case LISTBOX_IMAGE_TEMPLATE_LABEL:
+        case LISTBOX_IMAGE_ANCHOR_LABEL:
+        case LISTBOX_FILTER_SELECTOR:
+            break;
+    }
+}
+
+void SAL_CALL KDE5FilePicker2::initialize(const uno::Sequence<uno::Any>& args)
+{
+    // parameter checking
+    uno::Any arg;
+    if (args.getLength() == 0)
+    {
+        throw lang::IllegalArgumentException("no arguments", static_cast<XFilePicker2*>(this), 1);
+    }
+
+    arg = args[0];
+
+    if ((arg.getValueType() != cppu::UnoType<sal_Int16>::get())
+        && (arg.getValueType() != cppu::UnoType<sal_Int8>::get()))
+    {
+        throw lang::IllegalArgumentException("invalid argument type",
+                                             static_cast<XFilePicker2*>(this), 1);
+    }
+
+    sal_Int16 templateId = -1;
+    arg >>= templateId;
+
+    bool saveDialog = false;
+    switch (templateId)
+    {
+        case FILEOPEN_SIMPLE:
+            break;
+
+        case FILESAVE_SIMPLE:
+            saveDialog = true;
+            break;
+
+        case FILESAVE_AUTOEXTENSION:
+            saveDialog = true;
+            addCustomControl(CHECKBOX_AUTOEXTENSION);
+            break;
+
+        case FILESAVE_AUTOEXTENSION_PASSWORD:
+        {
+            saveDialog = true;
+            addCustomControl(CHECKBOX_PASSWORD);
+            addCustomControl(CHECKBOX_GPGENCRYPTION);
+            break;
+        }
+        case FILESAVE_AUTOEXTENSION_PASSWORD_FILTEROPTIONS:
+        {
+            saveDialog = true;
+            addCustomControl(CHECKBOX_AUTOEXTENSION);
+            addCustomControl(CHECKBOX_PASSWORD);
+            addCustomControl(CHECKBOX_GPGENCRYPTION);
+            addCustomControl(CHECKBOX_FILTEROPTIONS);
+            break;
+        }
+        case FILESAVE_AUTOEXTENSION_SELECTION:
+            saveDialog = true;
+            addCustomControl(CHECKBOX_AUTOEXTENSION);
+            addCustomControl(CHECKBOX_SELECTION);
+            break;
+
+        case FILESAVE_AUTOEXTENSION_TEMPLATE:
+            saveDialog = true;
+            addCustomControl(CHECKBOX_AUTOEXTENSION);
+            addCustomControl(LISTBOX_TEMPLATE);
+            break;
+
+        case FILEOPEN_LINK_PREVIEW_IMAGE_TEMPLATE:
+            addCustomControl(CHECKBOX_LINK);
+            addCustomControl(CHECKBOX_PREVIEW);
+            addCustomControl(LISTBOX_IMAGE_TEMPLATE);
+            break;
+
+        case FILEOPEN_LINK_PREVIEW_IMAGE_ANCHOR:
+            addCustomControl(CHECKBOX_LINK);
+            addCustomControl(CHECKBOX_PREVIEW);
+            addCustomControl(LISTBOX_IMAGE_ANCHOR);
+            break;
+
+        case FILEOPEN_PLAY:
+            addCustomControl(PUSHBUTTON_PLAY);
+            break;
+
+        case FILEOPEN_LINK_PLAY:
+            addCustomControl(CHECKBOX_LINK);
+            addCustomControl(PUSHBUTTON_PLAY);
+            break;
+
+        case FILEOPEN_READONLY_VERSION:
+            addCustomControl(CHECKBOX_READONLY);
+            addCustomControl(LISTBOX_VERSION);
+            break;
+
+        case FILEOPEN_LINK_PREVIEW:
+            addCustomControl(CHECKBOX_LINK);
+            addCustomControl(CHECKBOX_PREVIEW);
+            break;
+
+        case FILEOPEN_PREVIEW:
+            addCustomControl(CHECKBOX_PREVIEW);
+            break;
+
+        default:
+            OSL_TRACE("Unknown templates %d", templateId);
+            return;
+    }
+
+    setTitle(getResString(saveDialog ? STR_FPICKER_SAVE : STR_FPICKER_OPEN));
+
+    m_ipc.sendCommand(Commands::Initialize, saveDialog);
+}
+
+void SAL_CALL KDE5FilePicker2::cancel()
+{
+    // TODO
+}
+
+void KDE5FilePicker2::disposing(const lang::EventObject& rEvent)
+{
+    uno::Reference<XFilePickerListener> xFilePickerListener(rEvent.Source, uno::UNO_QUERY);
+
+    if (xFilePickerListener.is())
+    {
+        removeFilePickerListener(xFilePickerListener);
+    }
+}
+
+OUString SAL_CALL KDE5FilePicker2::getImplementationName()
+{
+    return OUString(FILE_PICKER_IMPL_NAME);
+}
+
+sal_Bool SAL_CALL KDE5FilePicker2::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+uno::Sequence<OUString> SAL_CALL KDE5FilePicker2::getSupportedServiceNames()
+{
+    return FilePicker_getSupportedServiceNames();
+}
+
+void KDE5FilePicker2::filterChanged()
+{
+    FilePickerEvent aEvent;
+    aEvent.ElementId = LISTBOX_FILTER;
+    OSL_TRACE("filter changed");
+    if (m_xListener.is())
+        m_xListener->controlStateChanged(aEvent);
+}
+
+void KDE5FilePicker2::selectionChanged()
+{
+    FilePickerEvent aEvent;
+    OSL_TRACE("file selection changed");
+    if (m_xListener.is())
+        m_xListener->fileSelectionChanged(aEvent);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/kde5/KDE5FilePicker2.hxx b/vcl/unx/kde5/KDE5FilePicker2.hxx
new file mode 100644
index 000000000000..ca98191def89
--- /dev/null
+++ b/vcl/unx/kde5/KDE5FilePicker2.hxx
@@ -0,0 +1,136 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <cppuhelper/compbase.hxx>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/ui/dialogs/XFilePicker3.hpp>
+#include <com/sun/star/ui/dialogs/XFilePickerControlAccess.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+#include <osl/conditn.hxx>
+#include <osl/mutex.hxx>
+
+#include <rtl/ustrbuf.hxx>
+
+#include "gtk3_kde5_filepicker_ipc.hxx"
+
+#include <functional>
+
+typedef ::cppu::WeakComponentImplHelper<css::ui::dialogs::XFilePicker3,
+                                        css::ui::dialogs::XFilePickerControlAccess
+                                        // TODO css::ui::dialogs::XFilePreview
+                                        ,
+                                        css::lang::XInitialization, css::lang::XServiceInfo>
+    KDE5FilePicker2_Base;
+
+class KDE5FilePicker2 : public KDE5FilePicker2_Base
+{
+protected:
+    css::uno::Reference<css::ui::dialogs::XFilePickerListener> m_xListener;
+
+    osl::Mutex _helperMutex;
+    KDE5FilePicker2Ipc m_ipc;
+
+public:
+    explicit KDE5FilePicker2(const css::uno::Reference<css::uno::XComponentContext>&);
+    virtual ~KDE5FilePicker2() override;
+
+    // XFilePickerNotifier
+    virtual void SAL_CALL addFilePickerListener(
+        const css::uno::Reference<css::ui::dialogs::XFilePickerListener>& xListener) override;
+    virtual void SAL_CALL removeFilePickerListener(
+        const css::uno::Reference<css::ui::dialogs::XFilePickerListener>& xListener) override;
+
+    // XExecutableDialog functions
+    virtual void SAL_CALL setTitle(const OUString& rTitle) override;
+    virtual sal_Int16 SAL_CALL execute() override;
+
+    // XFilePicker functions
+    virtual void SAL_CALL setMultiSelectionMode(sal_Bool bMode) override;
+    virtual void SAL_CALL setDefaultName(const OUString& rName) override;
+    virtual void SAL_CALL setDisplayDirectory(const OUString& rDirectory) override;
+    virtual OUString SAL_CALL getDisplayDirectory() override;
+    virtual css::uno::Sequence<OUString> SAL_CALL getFiles() override;
+
+    // XFilterManager functions
+    virtual void SAL_CALL appendFilter(const OUString& rTitle, const OUString& rFilter) override;
+    virtual void SAL_CALL setCurrentFilter(const OUString& rTitle) override;
+    virtual OUString SAL_CALL getCurrentFilter() override;
+
+    // XFilterGroupManager functions
+    virtual void SAL_CALL
+    appendFilterGroup(const OUString& rGroupTitle,
+                      const css::uno::Sequence<css::beans::StringPair>& rFilters) override;
+
+    // XFilePickerControlAccess functions
+    virtual void SAL_CALL setValue(sal_Int16 nControlId, sal_Int16 nControlAction,
+                                   const css::uno::Any& rValue) override;
+    virtual css::uno::Any SAL_CALL getValue(sal_Int16 nControlId,
+                                            sal_Int16 nControlAction) override;
+    virtual void SAL_CALL enableControl(sal_Int16 nControlId, sal_Bool bEnable) override;
+    virtual void SAL_CALL setLabel(sal_Int16 nControlId, const OUString& rLabel) override;
+    virtual OUString SAL_CALL getLabel(sal_Int16 nControlId) override;
+
+    /* TODO XFilePreview
+
+    virtual css::uno::Sequence< sal_Int16 > SAL_CALL getSupportedImageFormats(  );
+    virtual sal_Int32 SAL_CALL  getTargetColorDepth(  );
+    virtual sal_Int32 SAL_CALL  getAvailableWidth(  );
+    virtual sal_Int32 SAL_CALL  getAvailableHeight(  );
+    virtual void SAL_CALL       setImage( sal_Int16 aImageFormat, const css::uno::Any &rImage );
+    virtual sal_Bool SAL_CALL   setShowState( sal_Bool bShowState );
+    virtual sal_Bool SAL_CALL   getShowState(  );
+    */
+
+    // XFilePicker2 functions
+    virtual css::uno::Sequence<OUString> SAL_CALL getSelectedFiles() override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize(const css::uno::Sequence<css::uno::Any>& rArguments) override;
+
+    // XCancellable
+    virtual void SAL_CALL cancel() override;
+
+    // XEventListener
+    virtual void disposing(const css::lang::EventObject& rEvent);
+    using cppu::WeakComponentImplHelperBase::disposing;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& rServiceName) override;
+    virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+
+private:
+    KDE5FilePicker2(const KDE5FilePicker2&) = delete;
+    KDE5FilePicker2& operator=(const KDE5FilePicker2&) = delete;
+
+    //add a custom control widget to the file dialog
+    void addCustomControl(sal_Int16 controlId);
+
+    // emit XFilePickerListener controlStateChanged event
+    void filterChanged();
+    // emit XFilePickerListener fileSelectionChanged event
+    void selectionChanged();
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */