[libreoffice-dev] - questions about calc extension

[Stephan Bergmann]

On 01/09/2013 07:41 PM, Kohei Yoshida wrote:
> On 01/09/2013 01:12 PM, Rai, Neeraj wrote:
>> What is the correct way to get a
>> handle to spreadsheet in extension code.
>
> I don't want you to look too close to this (since I no longer maintain
> this), bug this code of mine
>
> http://code.google.com/p/scsolver/source/browse/source/ui/xcalc.cxx
>
> may give you some hint, especially the top 3 methods,
> getCurrentComponent(), updateCurrentComponent(), and getServiceManager()
> should give you how to get the current component object from the current
> context object.  As an extension, you are given access to the current
> context object, and you can reach the current component from that one
> way or another.

Some comments on the above code, for the benefit of fresh development:

Obtaining the com.sun.star.frame.Desktop service (variable xDesktop) in 
updateCurrentComponent can be greatly simplified through the use of 
so-called new-style service constructors (and Noel's ongoing work of 
changing existing old-style services into new-style ones in UNOIDL):

   Reference< frame::XDesktop2 > xDesktop(
       frame::Desktop::create(m_xCC));

- It already returns the proper interface of the service (in this case 
XDesktop2, derived from XDesktop), so no need for querying from 
XInterface to the correct type.

- It directly uses the component context, no need for the service 
manager.  (In general, demand for explicitly using the service manager 
should go away more and more over time.)

Stephan