Notebookbar: Impress: add a button to insert canvas slide & reshuffle pages

[mohit-marathe]

Change-Id: I82120479cf599f9058a6151cda0827ea12c8d777

• Target version: master

This feature is currently experimental as there are some bugs that I want to fix.

[pedropintosilva]

@mohit-marathe this is what I see:

I'm a bit confused, I thought we would have always in the maximum one canvas slide per presentation. What maybe I understood it wrong? (What would be the user flow that requires more than one?)

That apart, I think we should use a split button instead in the insert button. The same as we use in the home tab (with icon view) and then just add a button at the bottom (similar as we have for that Margins button in Writer > Layout or in Calc. And then we would have the New Canvas Slide button on both Home and Insert tab:

[mohit-marathe]

@pedropintosilva

I'm a bit confused, I thought we would have always in the maximum one canvas slide per presentation.

That's right.
I think the label can be more clear. I just followed the convention for labeling this uno command from: https://github.com/LibreOffice/core/blob/distro/collabora/co-25.04/officecfg/registry/data/org/openoffice/Office/UI/DrawImpressCommands.xcu#L827..L845

[pedropintosilva]

Mohit has confirmed there is only one canvas slide per document, always.