How do various apps and DEs handle the primary selection?

[Michael Stahl]

On 08.07.19 12:46, Jan-Marek Glogowski wrote:
> Hi Miklos
> 
> Am 08.07.19 um 09:22 schrieb Miklos Vajna:
>> On Mon, Jul 08, 2019 at 01:07:38AM +0200, Jan-Marek Glogowski <glogow at fbihome.de> wrote:
>>> And Writer clears it when a Shell closes, while Calc (~ScTabView) and Draw
>>> (:~View) clear it when the view is closed. But I'm a bit confused by the terms
>>> Shell and View and then there is even a ViewShell...
>>
>> A "shell" on its own is not clear. An object shell usually refers to an
>> SfxObjectShell sublcass, there is one instance for one opened document.
>> If you go to Window -> New Window, you can have multiple views for the
>> same document. Then you get multiple SfxViewShell subclasses.
> 
> I like the term "usually" in the first sentence ;-)
> 
>> In the Writer case, the subclasses are called SwDocShell and SwView.
> 
> My understanding has been, that a View displays stuff and a Shell manages input
> for the View; kind of. Can there be a Shell without a View? Does that even make
> sense?

iirc it's possible but i forgot what the corner case was...

> And then there is "class SwViewShell : public sw::Ring<SwViewShell>" with no
> SfxShell anywhere I can see it.

it's not related to SfxShell but to SfxViewShell... via SwView being a 
subclass of SfxViewShell and SwView::m_pWrtShell

but note that there can be instances of SwViewShell too that aren't 
subclassed and thus have no SwView, e.g. for the print preview.