sw undo: implement SfxUndoAction::GetViewShellId() interface

With this, it's possible to tell which view shell created which undo
actions. It's visible only in the doc model xml dump only, though.

Change-Id: Ia76d218a1d8b578aaad00ab733c772b10dda39f0
Reviewed-on: https://gerrit.libreoffice.org/27693
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/sw/inc/undobj.hxx b/sw/inc/undobj.hxx
index 79d890cf022a..14e099fd93de 100644
--- a/sw/inc/undobj.hxx
+++ b/sw/inc/undobj.hxx
@@ -49,6 +49,7 @@ class SwUndo
 {
     SwUndoId const m_nId;
     sal_uInt16 nOrigRedlineMode;
+    sal_Int32 m_nViewShellId;
 
 protected:
     bool bCacheComment;
@@ -81,6 +82,8 @@ public: // should not be public, but ran into trouble in untbl.cxx
     virtual void RedoImpl( ::sw::UndoRedoContext & ) = 0;
 
 private:
+    /// Try to obtain the view shell ID of the current view.
+    static sal_Int32 CreateViewShellId(const SwDoc* pDoc);
     // SfxUndoAction
     virtual void Undo() override;
     virtual void Redo() override;
@@ -90,7 +93,7 @@ private:
     virtual bool CanRepeat(SfxRepeatTarget &) const override;
 
 public:
-    SwUndo(SwUndoId const nId);
+    SwUndo(SwUndoId const nId, const SwDoc* pDoc);
     virtual ~SwUndo();
 
     /**
@@ -104,6 +107,9 @@ public:
     */
     virtual OUString GetComment() const override;
 
+    /// See SfxUndoAction::GetViewShellId().
+    sal_Int32 GetViewShellId() const override;
+
     // UndoObject remembers which mode was turned on.
     // In Undo/Redo/Repeat this remembered mode is switched on.
     sal_uInt16 GetRedlineMode() const { return nOrigRedlineMode; }