1 files changed, 128 insertions, 0 deletions
diff --git a/vcl/inc/unx/gtk/gtkinst.hxx b/vcl/inc/unx/gtk/gtkinst.hxx
index a7c489b7bf5d..b91ec5248416 100644
--- a/vcl/inc/unx/gtk/gtkinst.hxx
+++ b/vcl/inc/unx/gtk/gtkinst.hxx
@@ -23,6 +23,12 @@
 #include <unx/salinst.h>
 #include <generic/gensys.h>
 #include <headless/svpinst.hxx>
+#include <com/sun/star/datatransfer/DataFlavor.hpp>
+#include <com/sun/star/datatransfer/dnd/XDragSource.hpp>
+#include <com/sun/star/datatransfer/dnd/XDropTarget.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <cppuhelper/compbase.hxx>
 #include <gtk/gtk.h>
 
 namespace vcl
@@ -44,6 +50,126 @@ public:
     void ThreadsLeave();
 };
 
+#if GTK_CHECK_VERSION(3,0,0)
+class GtkSalFrame;
+
+struct VclToGtkHelper
+{
+    std::vector<css::datatransfer::DataFlavor> aInfoToFlavor;
+    std::vector<GtkTargetEntry> FormatsToGtk(const css::uno::Sequence<css::datatransfer::DataFlavor> &rFormats);
+    void setSelectionData(const css::uno::Reference<css::datatransfer::XTransferable> &rTrans,
+                          GtkSelectionData *selection_data, guint info);
+private:
+    GtkTargetEntry makeGtkTargetEntry(const css::datatransfer::DataFlavor& rFlavor);
+};
+
+class GtkTransferable : public cppu::WeakImplHelper<css::datatransfer::XTransferable>
+{
+protected:
+    std::map<OUString, GdkAtom> m_aMimeTypeToAtom;
+
+    std::vector<css::datatransfer::DataFlavor> getTransferDataFlavorsAsVector(GdkAtom *targets, gint n_targets);
+public:
+
+    virtual css::uno::Any SAL_CALL getTransferData(const css::datatransfer::DataFlavor& rFlavor)
+        throw(css::datatransfer::UnsupportedFlavorException,
+              css::io::IOException,
+              css::uno::RuntimeException, std::exception) override = 0;
+
+    virtual std::vector<css::datatransfer::DataFlavor> getTransferDataFlavorsAsVector() = 0;
+
+    virtual css::uno::Sequence<css::datatransfer::DataFlavor> SAL_CALL getTransferDataFlavors()
+        throw(css::uno::RuntimeException, std::exception) override;
+    virtual sal_Bool SAL_CALL isDataFlavorSupported(const css::datatransfer::DataFlavor& rFlavor)
+        throw(css::uno::RuntimeException, std::exception) override;
+};
+
+class GtkDropTarget : public cppu::WeakComponentImplHelper<css::datatransfer::dnd::XDropTarget,
+                                                           css::lang::XInitialization,
+                                                           css::lang::XServiceInfo>
+{
+    osl::Mutex m_aMutex;
+    GtkSalFrame* m_pFrame;
+    bool m_bActive;
+    sal_Int8 m_nDefaultActions;
+    std::list<css::uno::Reference<css::datatransfer::dnd::XDropTargetListener>> m_aListeners;
+public:
+    GtkDropTarget();
+    virtual ~GtkDropTarget();
+
+    // XInitialization
+    virtual void        SAL_CALL initialize(const css::uno::Sequence<css::uno::Any>& rArgs)
+                                    throw (css::uno::Exception, std::exception) override;
+            void        deinitialize();
+
+    // XDropTarget
+    virtual void        SAL_CALL addDropTargetListener(const css::uno::Reference<css::datatransfer::dnd::XDropTargetListener>&)
+                                    throw (std::exception) override;
+    virtual void        SAL_CALL removeDropTargetListener(const css::uno::Reference<css::datatransfer::dnd::XDropTargetListener>&)
+                                    throw (std::exception) override;
+    virtual sal_Bool    SAL_CALL isActive() throw(std::exception) override;
+    virtual void        SAL_CALL setActive(sal_Bool active) throw(std::exception) override;
+    virtual sal_Int8    SAL_CALL getDefaultActions() throw(std::exception) override;
+    virtual void        SAL_CALL setDefaultActions(sal_Int8 actions) throw(std::exception) override;
+
+    OUString SAL_CALL getImplementationName()
+                throw (css::uno::RuntimeException, std::exception) override;
+
+    sal_Bool SAL_CALL supportsService(OUString const & ServiceName)
+                throw (css::uno::RuntimeException, std::exception) override;
+
+    css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames()
+                throw (css::uno::RuntimeException, std::exception) override;
+
+    void fire_dragEnter(const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee);
+    void fire_dragOver(const css::datatransfer::dnd::DropTargetDragEvent& dtde);
+    void fire_drop(const css::datatransfer::dnd::DropTargetDropEvent& dtde);
+    void fire_dragExit(const css::datatransfer::dnd::DropTargetEvent& dte);
+};
+
+class GtkDragSource : public cppu::WeakComponentImplHelper<css::datatransfer::dnd::XDragSource,
+                                                           css::lang::XInitialization,
+                                                           css::lang::XServiceInfo>
+{
+    osl::Mutex m_aMutex;
+    GtkSalFrame* m_pFrame;
+    css::uno::Reference<css::datatransfer::dnd::XDragSourceListener> m_xListener;
+    css::uno::Reference<css::datatransfer::XTransferable> m_xTrans;
+    VclToGtkHelper m_aConversionHelper;
+public:
+    GtkDragSource() : WeakComponentImplHelper( m_aMutex ) {}
+    virtual ~GtkDragSource();
+
+    // XDragSource
+    virtual sal_Bool    SAL_CALL isDragImageSupported() throw(std::exception) override;
+    virtual sal_Int32   SAL_CALL getDefaultCursor(sal_Int8 dragAction) throw(std::exception) override;
+    virtual void        SAL_CALL startDrag(
+        const css::datatransfer::dnd::DragGestureEvent& trigger, sal_Int8 sourceActions, sal_Int32 cursor, sal_Int32 image,
+        const css::uno::Reference< css::datatransfer::XTransferable >& transferable,
+        const css::uno::Reference< css::datatransfer::dnd::XDragSourceListener >& listener) throw(std::exception) override;
+
+    // XInitialization
+    virtual void        SAL_CALL initialize(const css::uno::Sequence<css::uno::Any >& rArguments)
+        throw (css::uno::Exception, std::exception) override;
+            void        deinitialize();
+
+    OUString SAL_CALL getImplementationName()
+        throw (css::uno::RuntimeException, std::exception) override;
+
+    sal_Bool SAL_CALL supportsService(OUString const & ServiceName)
+        throw (css::uno::RuntimeException, std::exception) override;
+
+    css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames()
+        throw (css::uno::RuntimeException, std::exception) override;
+
+    void dragFailed();
+    void dragDelete();
+    void dragEnd(GdkDragContext* context);
+    void dragDataGet(GtkSelectionData *data, guint info);
+};
+
+#endif
+
 class GtkSalTimer;
 #if GTK_CHECK_VERSION(3,0,0)
 class GtkInstance : public SvpSalInstance
@@ -94,6 +220,8 @@ public:
 
 #if GTK_CHECK_VERSION(3,0,0)
     virtual css::uno::Reference< css::uno::XInterface > CreateClipboard( const css::uno::Sequence< css::uno::Any >& i_rArguments ) override;
+    virtual css::uno::Reference< css::uno::XInterface > CreateDragSource() override;
+    virtual css::uno::Reference< css::uno::XInterface > CreateDropTarget() override;
 #endif
 
     virtual const cairo_font_options_t* GetCairoFontOptions() override;