Blender Git Loki

Fix error in rBb9e1cc931ee9

Bad copy paste...

Fix T86122: Performance Debug View Viewport Not Working

The performance debug menu isn't used that often anymore as render doc
also show the timings. This patch will make sure that enabling the
performance debug view (21) does not crash blender.

UI: Expose an "is first search" boolean to search button callbacks

Currently when you open an RNA collection search button, like a
vertex group selector, the search filter isn't applied until you
start typing, in order to display every option at the start.
Otherwise they wouldn't be visible, since the search filter would
run for the current text.

Currently this check happens in one place, but it relies on the
`changed` value of `uiBut`. This is fine in the interface directory,
but anywhere else it would require exposing `uiBut.changed`, which
is probably too low-level to expose.

The solution is adding an `is_first` argument to the search callbacks,
which is nice for a few reasons:
- They work at a higher level of abstraction, meaning they don't
have to worry about how exactly to tell if this is the first
search.
- It makes it easier to do special behavior when the search menu
is first opened.
- Then, obviously, it makes that state accessible without including
`interface_intern.h`.

Needed for attribute search: T85658

Differential Revision: https://developer.blender.org/D10528

Refactor UIList template for further changes and to fix some glitches

Could go further than that, I think this would benefit from some C++
features, but we can do that in another pass.

Merge branch 'master' into ui-asset-view-template

Merge branch 'master' into ui-asset-view-template

Initial AssetList API & use it to load assets for the asset view tempate

Lots of hacks and temporary code here. I wanted a first working version to find
possible pain points before getting into details.

Basic idea is to store each asset library in an `AssetList`, with a globally
accessible storage. Internally the list uses the File Browser's `FileList`
which already does a fair amount of heavy lifting (threaded file & external
asset reading, lazy loading of visible previews, ...). The File Browser could
access the global asset-list storage as well.

The asset view template uses the new asset list to load and display the assets.

Current state: {F9856940}

Open TODOs: https://developer.blender.org/maniphest/query/M6RWFxFSDor3/#R

Add initial asset-view template, with dummy contents (palette colors)

Idea is to be able to display a list of assets in a layout, by giving it
some custom filtering settings (not done yet). This would be just a
uiList managed by Blender, displaying previews similar to the Asset
Browser.
I decided to use uiLists for this because it already deals with stuff
like writing its UI data to .blends (e.g. filtering and sort settings),
filtering and scrolling. But I think we'll have to do a number of
general improvements to them. Here I just added a new (C-only for now)
"flexible grid" list display type, which uses bigger previews and
behaves much better than the currend "grid" one.

There's a bit of hacking going on here and things will probably change.
For now I'm just interested in getting the basics done to see if the
direction is good.