Drop KDE5FilePicker::getDirectory

Use base class's 'Qt5FilePicker::getDirectory' instead
to reduce duplication.

Strictly speaking, the 'KDE5FilePicker::implGetDirectory'
implementation used by 'KDE5FilePicker::getDirectory'
suggests that the display directory is returned
rather than the selected directory, and the same
method 'implGetDirectory()' was actually previously used
by the 'KDE5FilePicker::getDisplayDirectory()' method
as well (removed in a previous commit).

The code worked fine inside KDE5FilePicker (where the
native Plasma/kde5 file dialog is used) but would lead
to incorrect results when used inside Qt5FilePicker, e.g.
for the following scenario

* open  folder picker displaying $HOME that contains
  a directory "bar"
* do a single mouse click on the "bar" directory
* click "OK"

The call to 'toOUString(m_pFileDialog->directoryUrl().url())'
inside 'getDirectory()' would return '$HOME/bar' for the native
QFileDialog on KDE Plasma 5, but '$HOME' when
used with the non-native QFileDialog

Anyway, the implementation inside 'Qt5FilePicker::getDirectory'
works fine for both cases, so just drop the KDE5FilePicker one.

Reviewed-on: https://gerrit.libreoffice.org/68050
Tested-by: Jenkins
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>
(cherry picked from commit fa738707)

Change-Id: I86dcf98ed310636b899ad289d8a8a8fa263dd2e9
Reviewed-on: https://gerrit.libreoffice.org/72647
Tested-by: Jenkins
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>

vcl/unx/kde5/KDE5FilePicker.hxx

@@ -96,7 +96,6 @@ public:
     virtual OUString SAL_CALL getLabel(sal_Int16 nControlId) override;
 
     // XFolderPicker stuff
-    virtual OUString SAL_CALL getDirectory() override;
     virtual void SAL_CALL setDescription(const OUString& rDescription) override;
 
     /* TODO XFilePreview
@@ -126,14 +125,12 @@ private:
     void addCustomControl(sal_Int16 controlId);
     void handleSetListValue(QComboBox* pQComboBox, sal_Int16 nAction, const css::uno::Any& rValue);
     css::uno::Any handleGetListValue(QComboBox* pQComboBox, sal_Int16 nAction);
-    OUString implGetDirectory();
 
 protected:
     bool eventFilter(QObject* watched, QEvent* event) override;
 
 Q_SIGNALS:
     sal_Int16 executeSignal();
-    OUString getDirectorySignal();
     void setValueSignal(sal_Int16 nControlId, sal_Int16 nControlAction,
                         const css::uno::Any& rValue);
     css::uno::Any getValueSignal(sal_Int16 nControlId, sal_Int16 nControlAction);
@@ -147,7 +144,6 @@ Q_SIGNALS:
     OUString getCurrentFilterSignal();
 
 private Q_SLOTS:
-    OUString getDirectorySlot() { return implGetDirectory(); }
     void setValueSlot(sal_Int16 nControlId, sal_Int16 nControlAction, const css::uno::Any& rValue)
     {
         return setValue(nControlId, nControlAction, rValue);

vcl/unx/kde5/KDE5FilePicker2.cxx

@@ -101,9 +101,6 @@ KDE5FilePicker::KDE5FilePicker(QFileDialog::FileMode eMode)
     connect(this, &KDE5FilePicker::executeSignal, this, &KDE5FilePicker::execute,
             Qt::BlockingQueuedConnection);
 
-    // XFolderPicker
-    connect(this, &KDE5FilePicker::getDirectorySignal, this, &KDE5FilePicker::getDirectorySlot,
-            Qt::BlockingQueuedConnection);
     // XFilterManager
     connect(this, &KDE5FilePicker::appendFilterSignal, this, &KDE5FilePicker::appendFilterSlot,
             Qt::BlockingQueuedConnection);
@@ -338,18 +335,6 @@ OUString SAL_CALL KDE5FilePicker::getLabel(sal_Int16 controlId)
     return label;
 }
 
-// XFolderPicker
-OUString SAL_CALL KDE5FilePicker::getDirectory()
-{
-    if (qApp->thread() != QThread::currentThread())
-    {
-        SolarMutexReleaser aReleaser;
-        return Q_EMIT getDirectorySignal();
-    }
-
-    return implGetDirectory();
-}
-
 void SAL_CALL KDE5FilePicker::setDescription(const OUString&) {}
 
 void KDE5FilePicker::addCustomControl(sal_Int16 controlId)
@@ -531,12 +516,6 @@ uno::Any KDE5FilePicker::handleGetListValue(QComboBox* pQComboBox, sal_Int16 nAc
     return aAny;
 }
 
-OUString KDE5FilePicker::implGetDirectory()
-{
-    OUString dir = toOUString(m_pFileDialog->directoryUrl().url());
-    return dir;
-}
-
 // XInitialization
 void SAL_CALL KDE5FilePicker::initialize(const uno::Sequence<uno::Any>& args)
 {