LOK: add lok::Document::setTextSelection()

What's interesting about this is that it allows adjusting the position
of both the point and mark of the selection, while the normal UI only
allows adjusting the point.

Change-Id: If61f57c68c28c67fec252f2b666a706f52dd8d26

8 files changed, 86 insertions, 0 deletions

diff --git a/desktop/source/lib/init.cxx b/desktop/source/lib/init.cxx
index 5a5f609325e4..d7ca1438709b 100644
--- a/desktop/source/lib/init.cxx
+++ b/desktop/source/lib/init.cxx
@@ -207,6 +207,10 @@ static void doc_postMouseEvent (LibreOfficeKitDocument* pThis,
                                 int nX,
                                 int nY,
                                 int nCount);
+static void doc_setTextSelection (LibreOfficeKitDocument* pThis,
+                                  int nType,
+                                  int nX,
+                                  int nY);
 
 struct LibLODocument_Impl : public _LibreOfficeKitDocument
 {
@@ -235,6 +239,7 @@ struct LibLODocument_Impl : public _LibreOfficeKitDocument
             m_pDocumentClass->initializeForRendering = doc_initializeForRendering;
             m_pDocumentClass->registerCallback = doc_registerCallback;
             m_pDocumentClass->postMouseEvent = doc_postMouseEvent;
+            m_pDocumentClass->setTextSelection = doc_setTextSelection;
 
             gDocumentClass = m_pDocumentClass;
         }
@@ -673,6 +678,17 @@ static void doc_postMouseEvent(LibreOfficeKitDocument* pThis, int nType, int nX,
     pDoc->postMouseEvent(nType, nX, nY, nCount);
 }
 
+static void doc_setTextSelection(LibreOfficeKitDocument* pThis, int nType, int nX, int nY)
+{
+    ITiledRenderable* pDoc = getTiledRenderable(pThis);
+    if (!pDoc)
+    {
+        gImpl->maLastExceptionMsg = "Document doesn't support tiled rendering";
+        return;
+    }
+
+    pDoc->setTextSelection(nType, nX, nY);
+}
 
 static char* lo_getError (LibreOfficeKit *pThis)
 {
diff --git a/include/LibreOfficeKit/LibreOfficeKit.h b/include/LibreOfficeKit/LibreOfficeKit.h
index 204479502eb7..eccf19bd82ce 100644
--- a/include/LibreOfficeKit/LibreOfficeKit.h
+++ b/include/LibreOfficeKit/LibreOfficeKit.h
@@ -117,6 +117,15 @@ typedef enum
 }
 LibreOfficeKitMouseEventType;
 
+typedef enum
+{
+    /// The start of selection is to be adjusted.
+    LOK_SETTEXTSELECTION_START,
+    /// The end of selection is to be adjusted.
+    LOK_SETTEXTSELECTION_END
+}
+LibreOfficeKitSetTextSelectionType;
+
 typedef void (*LibreOfficeKitCallback)(int nType, const char* pPayload, void* pData);
 #endif // LOK_USE_UNSTABLE_API
 
@@ -204,6 +213,11 @@ struct _LibreOfficeKitDocumentClass
                          int nX,
                          int nY,
                          int nCount);
+  /// @see lok::Document::setTextSelection
+  void (*setTextSelection)(LibreOfficeKitDocument* pThis,
+                         int nType,
+                         int nX,
+                         int nY);
 #endif // LOK_USE_UNSTABLE_API
 };
 
diff --git a/include/LibreOfficeKit/LibreOfficeKit.hxx b/include/LibreOfficeKit/LibreOfficeKit.hxx
index 8448fcd75204..ef365ce04f4e 100644
--- a/include/LibreOfficeKit/LibreOfficeKit.hxx
+++ b/include/LibreOfficeKit/LibreOfficeKit.hxx
@@ -117,6 +117,18 @@ public:
     {
         mpDoc->pClass->postMouseEvent(mpDoc, nType, nX, nY, nCount);
     }
+
+    /**
+     * Sets the start or end of a text selection.
+     *
+     * @param nType @see LibreOfficeKitSetTextSelectionType
+     * @param nX horizontal position in document coordinates
+     * @param nY vertical position in document coordinates
+     */
+    inline void setTextSelection(int nType, int nX, int nY)
+    {
+        mpDoc->pClass->setTextSelection(mpDoc, nType, nX, nY);
+    }
 #endif // LOK_USE_UNSTABLE_API
 };
 
diff --git a/include/vcl/ITiledRenderable.hxx b/include/vcl/ITiledRenderable.hxx
index 9edd7a11aa9e..d5b3e8077923 100644
--- a/include/vcl/ITiledRenderable.hxx
+++ b/include/vcl/ITiledRenderable.hxx
@@ -107,6 +107,13 @@ public:
      * @see lok::Document::postMouseEvent().
      */
     virtual void postMouseEvent(int /*nType*/, int /*nX*/, int /*nY*/, int /*nCount*/) { }
+
+    /**
+     * Sets the start or end of a text selection.
+     *
+     * @see lok::Document::setTextSelection().
+     */
+    virtual void setTextSelection(int /*nType*/, int /*nX*/, int /*nY*/) { }
 };
 
 } // namespace vcl
diff --git a/sw/inc/unotxdoc.hxx b/sw/inc/unotxdoc.hxx
index 894a12714946..6ffa02fff8ca 100644
--- a/sw/inc/unotxdoc.hxx
+++ b/sw/inc/unotxdoc.hxx
@@ -415,6 +415,8 @@ public:
     virtual void registerCallback(LibreOfficeKitCallback pCallback, void* pData) SAL_OVERRIDE;
     /// @see vcl::ITiledRenderable::postMouseEvent().
     virtual void postMouseEvent(int nType, int nX, int nY, int nCount) SAL_OVERRIDE;
+    /// @see vcl::ITiledRenderable::setTextSelection().
+    virtual void setTextSelection(int nType, int nX, int nY) SAL_OVERRIDE;
 
     void                        Invalidate();
     void                        Reactivate(SwDocShell* pNewDocShell);
diff --git a/sw/source/uibase/docvw/edtwin.cxx b/sw/source/uibase/docvw/edtwin.cxx
index 6666249466da..bb592175fde4 100644
--- a/sw/source/uibase/docvw/edtwin.cxx
+++ b/sw/source/uibase/docvw/edtwin.cxx
@@ -6256,4 +6256,18 @@ void SwEditWin::LogicMouseButtonUp(const MouseEvent& rMouseEvent)
     MouseButtonUp(rMouseEvent);
 }
 
+void SwEditWin::SetCursorLogicPosition(bool bPoint, const Point& rPosition)
+{
+    // Not an SwWrtShell, as that would make SwCrsrShell::GetCrsr() inaccessible.
+    SwEditShell& rShell = m_rView.GetWrtShell();
+    SwMvContext aMvContext(&rShell);
+    // If the mark is to be updated, then exchange the point and mark before
+    // and after, as we can't easily set the mark.
+    if (!bPoint)
+        rShell.GetCrsr()->Exchange();
+    rShell.SetCrsr(rPosition);
+    if (!bPoint)
+        rShell.GetCrsr()->Exchange();
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/uibase/inc/edtwin.hxx b/sw/source/uibase/inc/edtwin.hxx
index 5557321a5a1a..9af94460629c 100644
--- a/sw/source/uibase/inc/edtwin.hxx
+++ b/sw/source/uibase/inc/edtwin.hxx
@@ -305,6 +305,8 @@ public:
     void LogicMouseButtonDown(const MouseEvent& rMouseEvent);
     /// Same as MouseButtonUp(), but coordinates are in logic unit.
     void LogicMouseButtonUp(const MouseEvent& rMouseEvent);
+    /// Allows adjusting the point or mark of the selection to a document coordinate.
+    void SetCursorLogicPosition(bool bPoint, const Point& rPosition);
 };
 
 #endif
diff --git a/sw/source/uibase/uno/unotxdoc.cxx b/sw/source/uibase/uno/unotxdoc.cxx
index 70abbac57cbf..3a98cd955384 100644
--- a/sw/source/uibase/uno/unotxdoc.cxx
+++ b/sw/source/uibase/uno/unotxdoc.cxx
@@ -3194,6 +3194,25 @@ void SwXTextDocument::postMouseEvent(int nType, int nX, int nY, int nCount)
     }
 }
 
+void SwXTextDocument::setTextSelection(int nType, int nX, int nY)
+{
+    SolarMutexGuard aGuard;
+
+    SwEditWin& rEditWin = pDocShell->GetView()->GetEditWin();
+    switch (nType)
+    {
+    case LOK_SETTEXTSELECTION_START:
+        rEditWin.SetCursorLogicPosition(/*bPoint=*/false, Point(nX, nY));
+        break;
+    case LOK_SETTEXTSELECTION_END:
+        rEditWin.SetCursorLogicPosition(/*bPoint=*/true, Point(nX, nY));
+        break;
+    default:
+        assert(false);
+        break;
+    }
+}
+
 void * SAL_CALL SwXTextDocument::operator new( size_t t) throw()
 {
     return SwXTextDocumentBaseClass::operator new(t);