sw: implement select-all for the frame shell

There is no reason why Ctrl-A should be a NOP when you have an image
selected.

No test, there is one in the cp-6.0 copy&paste code, that coverage will
arrive as part of that copy&paste code forward-port.

Change-Id: If0013ee0e9ff9a6fb038a22de7b5d3c76e5c52b9
Reviewed-on: https://gerrit.libreoffice.org/73118Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

sw/sdi/_frmsh.sdi

@@ -406,5 +406,10 @@ interface BaseTextFrame
         ExecMethod = Execute ;
         DisableFlags="SfxDisableFlags::SwOnProtectedCursor";
     ]
+    SID_SELECTALL
+    [
+        ExecMethod = ExecMove ;
+        StateMethod = NoState ;
+    ]
 }
 

sw/source/uibase/inc/frmsh.hxx

@@ -35,6 +35,7 @@ public:
     virtual ~SwFrameShell() override;
 
     void    Execute(SfxRequest &);
+    void    ExecMove(SfxRequest& rReq);
     void    GetState(SfxItemSet &);
     void    ExecFrameStyle(SfxRequest const & rReq);
     void    GetLineStyleState(SfxItemSet &rSet);

sw/source/uibase/shells/frmsh.cxx

@@ -115,6 +115,19 @@ void SwFrameShell::InitInterface_Impl()
     GetStaticInterface()->RegisterObjectBar(SFX_OBJECTBAR_OBJECT, SfxVisibilityFlags::Invisible, ToolbarId::Frame_Toolbox);
 }
 
+void SwFrameShell::ExecMove(SfxRequest& rReq)
+{
+    SwWrtShell& rSh = GetShell();
+    sal_uInt16 nSlot = rReq.GetSlot();
+    switch (nSlot)
+    {
+        case SID_SELECTALL:
+            rSh.SelAll();
+            rReq.Done();
+            break;
+    }
+}
+
 void SwFrameShell::Execute(SfxRequest &rReq)
 {
     //First those who do not need FrameMgr.