tdf#126316 revert Clipboard to PrimarySelection

Regression from commit ce9795954d39 ("fix crash in header/footer
calc dialog"), which replaced some GetPrimarySelection() calls
with GetClipboard() calls.

This replaces the Window class calls for clipboard with global
GetSystem* calls in vcl/transfer.hxx. Not sure if this is the
best place, but the crowded Window class is definitly not.

Change-Id: Ic5f9e575c1ac5d43df234426c5616eca616dea30
Reviewed-on: https://gerrit.libreoffice.org/75318
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

2 files changed, 52 insertions, 58 deletions

diff --git a/vcl/source/treelist/transfer2.cxx b/vcl/source/treelist/transfer2.cxx
index a731ec2abf23..9160ba416e02 100644
--- a/vcl/source/treelist/transfer2.cxx
+++ b/vcl/source/treelist/transfer2.cxx
@@ -17,6 +17,8 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_features.h>
+
 #include <osl/mutex.hxx>
 #include <sot/exchange.hxx>
 #include <sot/storage.hxx>
@@ -26,9 +28,12 @@
 #include <vcl/svapp.hxx>
 #include <vcl/window.hxx>
 #include <comphelper/fileformat.h>
+#include <comphelper/processfactory.hxx>
+#include <com/sun/star/datatransfer/clipboard/SystemClipboard.hpp>
 #include <com/sun/star/datatransfer/dnd/XDropTargetDragContext.hpp>
 #include <com/sun/star/datatransfer/dnd/XDragGestureRecognizer.hpp>
 #include <com/sun/star/datatransfer/dnd/XDropTarget.hpp>
+#include <com/sun/star/uno/DeploymentException.hpp>
 #include <svl/urlbmk.hxx>
 #include <vcl/inetimg.hxx>
 #include <vcl/imap.hxx>
@@ -460,4 +465,40 @@ void TransferDataContainer::DragFinished( sal_Int8 nDropAction )
     pImpl->aFinshedLnk.Call( nDropAction );
 }
 
+Reference<XClipboard> GetSystemClipboard()
+{
+    Reference<XClipboard> xClipboard;
+    try
+    {
+        xClipboard = css::datatransfer::clipboard::SystemClipboard::create(
+            comphelper::getProcessComponentContext());
+    }
+    catch (DeploymentException const &) {}
+    return xClipboard;
+}
+
+Reference<XClipboard> GetSystemPrimarySelection()
+{
+    Reference<XClipboard> xSelection;
+    try
+    {
+        Reference<XComponentContext> xContext(comphelper::getProcessComponentContext());
+#if HAVE_FEATURE_X11
+        // A hack, making the primary selection available as an instance
+        // of the SystemClipboard service on X11:
+        Sequence< Any > args(1);
+        args[0] <<= OUString("PRIMARY");
+        xSelection.set(xContext->getServiceManager()->createInstanceWithArgumentsAndContext(
+            "com.sun.star.datatransfer.clipboard.SystemClipboard", args, xContext), UNO_QUERY_THROW);
+#else
+        static Reference< XClipboard > s_xSelection(
+            xContext->getServiceManager()->createInstanceWithContext(
+                "com.sun.star.datatransfer.clipboard.GenericClipboard", xContext), UNO_QUERY);
+        xSelection = s_xSelection;
+#endif
+    }
+    catch (RuntimeException const &) {}
+    return xSelection;
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/window/window.cxx b/vcl/source/window/window.cxx
index 826ba0cbadbe..3b26f70d7040 100644
--- a/vcl/source/window/window.cxx
+++ b/vcl/source/window/window.cxx
@@ -46,6 +46,7 @@
 #include <vcl/sysdata.hxx>
 #include <vcl/ptrstyle.hxx>
 #include <vcl/IDialogRenderable.hxx>
+#include <vcl/transfer.hxx>
 
 #include <vcl/uitest/uiobject.hxx>
 #include <vcl/uitest/uitest.hxx>
@@ -3273,68 +3274,20 @@ void Window::SetClipboard(Reference<XClipboard> const & xClipboard)
 
 Reference< XClipboard > Window::GetClipboard()
 {
-
-    if( mpWindowImpl->mpFrameData )
-    {
-        if( ! mpWindowImpl->mpFrameData->mxClipboard.is() )
-        {
-            try
-            {
-                mpWindowImpl->mpFrameData->mxClipboard
-                    = css::datatransfer::clipboard::SystemClipboard::create(
-                        comphelper::getProcessComponentContext());
-            }
-            catch (DeploymentException const &)
-            {
-                TOOLS_WARN_EXCEPTION("vcl.window", "ignoring");
-            }
-        }
-
-        return mpWindowImpl->mpFrameData->mxClipboard;
-    }
-
-    return static_cast < XClipboard * > (nullptr);
+    if (!mpWindowImpl->mpFrameData)
+        return static_cast<XClipboard*>(nullptr);
+    if (!mpWindowImpl->mpFrameData->mxClipboard.is())
+        mpWindowImpl->mpFrameData->mxClipboard = GetSystemClipboard();
+    return mpWindowImpl->mpFrameData->mxClipboard;
 }
 
 Reference< XClipboard > Window::GetPrimarySelection()
 {
-
-    if( mpWindowImpl->mpFrameData )
-    {
-        if( ! mpWindowImpl->mpFrameData->mxSelection.is() )
-        {
-            try
-            {
-                Reference< XComponentContext > xContext( comphelper::getProcessComponentContext() );
-
-#if HAVE_FEATURE_X11
-                // A hack, making the primary selection available as an instance
-                // of the SystemClipboard service on X11:
-                Sequence< Any > args(1);
-                args[0] <<= OUString("PRIMARY");
-                mpWindowImpl->mpFrameData->mxSelection.set(
-                    (xContext->getServiceManager()->
-                     createInstanceWithArgumentsAndContext(
-                         "com.sun.star.datatransfer.clipboard.SystemClipboard",
-                         args, xContext)),
-                    UNO_QUERY_THROW);
-#else
-                static Reference< XClipboard > s_xSelection(
-                    xContext->getServiceManager()->createInstanceWithContext( "com.sun.star.datatransfer.clipboard.GenericClipboard", xContext ), UNO_QUERY );
-
-                mpWindowImpl->mpFrameData->mxSelection = s_xSelection;
-#endif
-            }
-            catch (RuntimeException const &)
-            {
-                TOOLS_WARN_EXCEPTION("vcl.window", "ignoring");
-            }
-        }
-
-        return mpWindowImpl->mpFrameData->mxSelection;
-    }
-
-    return static_cast < XClipboard * > (nullptr);
+    if (!mpWindowImpl->mpFrameData)
+        return static_cast<XClipboard*>(nullptr);
+    if (!mpWindowImpl->mpFrameData->mxSelection.is())
+        mpWindowImpl->mpFrameData->mxSelection = GetSystemPrimarySelection();
+    return mpWindowImpl->mpFrameData->mxSelection;
 }
 
 void Window::RecordLayoutData( vcl::ControlLayoutData* pLayout, const tools::Rectangle& rRect )