Docking - upgrading from 2015

Vincent Parrett

Hi

I'm about to upgrade from Docking pack 2015 to 2019 - is there anything I should look out for? I do use my own styles that I created using your style editor.  I also use the DockPersister to save and load the layout. Looking through the code, there are only a few places I interact with the docking library

procedure TMainForm.MainDockSiteUpdateHotSpots(Sender: TObject;

  AZone: TLMDDockZone; var EnabledAreas: TLMDActiveAreas);

begin

  //Don't allow users to dock into the center tabs.. to be added later!

 if (AZone <> nil) and (AZone.Panel = CenterDockPanel) then

   Exclude(EnabledAreas,hsaTabAreas );

end;

When persisting the layout, I call this first to ensure we persist with the first tab selected (better user experience when starting up) :

  procedure EnsureFirstTabsSelected(const AZone: TLMDDockZone);

  var

    iZoneIdx: Integer;

  begin

    for iZoneIdx := 0 to AZone.ZoneCount - 1 do

    begin

      case AZone.Zones[iZoneIdx].Kind of

        zkTabs :

        begin

          if AZone.Zones[iZoneIdx].ZoneCount > 0 then

            AZone.Zones[iZoneIdx].SelectedPage := AZone.Zones[iZoneIdx].Zones[0];

        end;

      end;

      //Recurse down the tree.

      EnsureFirstTabsSelected(AZone.Zones[iZoneIdx]);

    end;

  end;

  //By default select all the first tabs in each docked tab control set.

  EnsureFirstTabsSelected(MainDockSite.RootZone);

  DockPersister.SaveToFile(FDefaultLayoutFileName);

I do also write to the persisted layout with the OnWriteAppInfo event.

I am upgrading from XE7 to 10.3.2 and do use vcl styles, I don't think the 2015 docking pack had support for them, so that might be an issue? 

FWIW, this has been in production now for years with thousands of users using FinalBuilder 8 and I can't remember the last time I had an issue that wasn't user induced (and I have a reset dock layout item on the view menu for those situations). 

Thanks

Vincent

Eugene Balabuev (LMD)

Its actually hard to say. Generally, it should work for you without problems. Moreover small bug are fixed from time to time, so, new version should work even better.

But, you nevertheless should check it yourself.