This PR reworks the rendering of the collab panel to use `gpui::list`,
so that we don't render any items that are not visible on the screen.
In the process we also fixed some bugs in the channel list:
- Fixed the context menu for channels not deploying when activated via
keyboard
- Fixed drag and drop for channels
- Made it so when navigating the collab panel via keyboard the list only
scrolls enough to reveal the next item when navigating to an item that
is currently off-screen
Release Notes:
- N/A
Also add the ability to unnest a channel by dragging it to the "Channels"
header. This is currently not working due to a collab server issue.
Co-authored-by: Max <max@zed.dev>
Rework gpui2 drag API so that receivers need not specify the dragged view type.
co-authored-by: Max <max@zed.dev>
co-authored-by: Conrad <conrad@zed.dev>
Header and footer are gonna be added in a separate PR as they require
changes to Picker trait that I feel are separate from the contents of
this PR.
Release Notes:
- N/A
This PR implements the `VisibleOnHover` trait for `IconButton`s.
I noticed that in a lot of places we were wrapping an `IconButton` in an
extra `div` just so we could call `visible_on_hover` on it. By
implementing the trait on `IconButton` directly it allows us to avoid
the interstitial `div` entirely.
Release Notes:
- N/A
This PR adds a `.visible_on_hover` helper method that can be used to
make an element only visible on hover.
I noticed we were repeating this similar stanza in a bunch of different
spots:
```rs
some_element
.invisible()
.group_hover("", |style| style.visible())
```
so it seemed like a nice thing to factor out into a reusable utility.
Release Notes:
- N/A
This PR reworks the `ListItem` and `ListHeader` components to use
slot-based APIs, making them less opinionated about their contents.
Splitting this out of the collab UI styling PR so we can land it to
avoid conflicts.
Co-authored-by: Nate <nate@zed.dev>
Release Notes:
- N/A
