This reverts #9053 and #9375 because they introduced a regression on
`main` that broke the titlebars on macOS:

Two things are off:
- Left padding is missing
- Titlebar height is less than it was before, which means the
traffic-light buttons are not centered vertically
What @as-cii and I noticed while looking into this: the `cfg!(macos)`
macros that were used don't work like that. You need to check for
`cfg!(target = "macos")` etc. Means that on macOS we never used the
macOS-specific code because the condition was always false.
Overall height, we're not sure about.
Release Notes:
- N/A
This PR changes GPUI to open windows with a default size and location,
and to otherwise inherit from their spawning window.
Note: The linux build now crashes on startup.
Release Notes:
- N/A
---------
Co-authored-by: Nathan <nathan@zed.dev>
Co-authored-by: Ezekiel Warren <zaucy@users.noreply.github.com>
See https://zed.dev/channel/gpui-536
Fixes https://github.com/zed-industries/zed/issues/9010
Fixes https://github.com/zed-industries/zed/issues/8883
Fixes https://github.com/zed-industries/zed/issues/8640
Fixes https://github.com/zed-industries/zed/issues/8598
Fixes https://github.com/zed-industries/zed/issues/8579
Fixes https://github.com/zed-industries/zed/issues/8363
Fixes https://github.com/zed-industries/zed/issues/8207
### Problem
After transitioning Zed to GPUI 2, we started noticing that interacting
with the mouse on many UI elements would lead to a pretty annoying
flicker. The main issue with the old approach was that hover state was
calculated based on the previous frame. That is, when computing whether
a given element was hovered in the current frame, we would use
information about the same element in the previous frame.
However, inspecting the previous frame tells us very little about what
should be hovered in the current frame, as elements in the current frame
may have changed significantly.
### Solution
This pull request's main contribution is the introduction of a new
`after_layout` phase when redrawing the window. The key idea is that
we'll give every element a chance to register a hitbox (see
`ElementContext::insert_hitbox`) before painting anything. Then, during
the `paint` phase, elements can determine whether they're the topmost
and draw their hover state accordingly.
We are also removing the ability to give an arbitrary z-index to
elements. Instead, we will follow the much simpler painter's algorithm.
That is, an element that gets painted after will be drawn on top of an
element that got painted earlier. Elements can still escape their
current "stacking context" by using the new `ElementContext::defer_draw`
method (see `Overlay` for an example). Elements drawn using this method
will still be logically considered as being children of their original
parent (for keybinding, focus and cache invalidation purposes) but their
layout and paint passes will be deferred until the currently-drawn
element is done.
With these changes we also reworked geometry batching within the
`Scene`. The new approach uses an AABB tree to determine geometry
occlusion, which allows the GPU to render non-overlapping geometry in
parallel.
### Performance
Performance is slightly better than on `main` even though this new
approach is more correct and we're maintaining an extra data structure
(the AABB tree).

Release Notes:
- Fixed a bug that was causing popovers to flicker.
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Thorsten <thorsten@zed.dev>
This adds a GPUI fallback for window prompts. Linux does not support
this feature by default, so we have to implement it ourselves.
This implementation also makes it possible for GPUI clients to override
the platform prompts with their own implementations.
This is just a first pass. These alerts are not keyboard accessible yet,
does not reflect the prompt level, they're implemented in-window, rather
than as popups, and the whole feature need a pass from a designer.
Regardless, this gets us one step closer to Linux support :)
<img width="650" alt="Screenshot 2024-03-06 at 5 58 08 PM"
src="https://github.com/zed-industries/zed/assets/2280405/972ebb55-fd1f-4066-969c-a87f63b22a6f">
Release Notes:
- N/A
Also adds a new command `cli: Register Zed Scheme` that will cause URLs
to be opened in the current zed version, and we call this implicitly if
you install the CLI
Also add some status reporting to install cli
Fixes: #8857
Release Notes:
- Added success/error reporting to `cli: Install Cli`
([#8857](https://github.com/zed-industries/zed/issues/8857)).
- Removed `zed-{preview,nightly,dev}:` url schemes (used by channel
links)
- Added `cli: Register Zed Scheme` to control which zed handles the
`zed://` scheme (defaults to the most recently installed, or
the version that you last used `cli: Install Cli` with)
This practice makes it difficult to locate todo!s in my code when I'm
working. Let's take out the bang if we want to keep doing this.
Release Notes:
- N/A
This reverts commit 0cebf68306.
Although this thing is very cool, it is a top source of crashes.
Example crash:
```
Segmentation fault: 11 on thread 26
objc_retain +16
invocation function for block in Overlay::onCommandBufferCommit(id<MTLCommandBuffer>) +60
MTLDispatchListApply +52
```
Release Notes:
- Removed "Toggle Graphics Profiler" as it crashes too much.
Release Notes:
- Added `workspace::SendKeystrokes` to enable mapping from one key to a
sequence of others
([#7033](https://github.com/zed-industries/zed/issues/7033)).
Improves #7033. Big thank you to @ConradIrwin who did most of the heavy
lifting on this one.
This PR allows the user to send multiple keystrokes via custom
keybinding. For example, the following keybinding would go down four
lines and then right four characters.
```json
[
{
"context": "Editor && VimControl && !VimWaiting && !menu",
"bindings": {
"g z": [
"workspace::SendKeystrokes",
"j j j j l l l l"
],
}
}
]
```
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Depends on https://github.com/zed-industries/font-kit/pull/2 and
https://github.com/kvark/blade/pull/77
This change enables Blade to be also used on MacOS. It will also make it
easier to use it on Windows.
What works: most of the things. Zed loads as fast and appears equally
responsive to the current renderer.
<img width="306" alt="Screenshot 2024-02-11 at 12 09 15 AM"
src="https://github.com/zed-industries/zed/assets/107301/66d82f45-5ea2-4e2b-86c6-5b3ed333c827">
Things missing:
- [x] video streaming. ~~Requires a bit of plumbing on both Blade and
Zed sides, but all fairly straightforward.~~
- verified with a local setup
- [x] resize. ~~Not sure where exactly to hook up the reaction on the
window size change. Once we know where, the fix is one line.~~
- [ ] fine-tune CA Layer
- this isn't a blocker for merging the PR, but it would be a blocker if
we wanted to switch to the new path by default
- [ ] rebase on latest, get the dependency merged (need review/merge of
https://github.com/zed-industries/font-kit/pull/2!)
Update: I implemented resize support as well as "surface" rendering on
the Blade path (which will be useful on Linux/Windows later on). I
haven't tested the latter though - not sure how to get something
streaming. Would appreciate some help! I don't think this should be a
blocker to this PR, anyway.
The only little piece that's missing for the Blade on MacOS path to be
full-featured is fine-tuning the CALayer configuration. Zed does a lot
of careful logic in configuring the layer, such as switching the
"present with transaction" on/off intermittently, which Blade path
doesn't have yet.
Release Notes:
- N/A
---------
Co-authored-by: Mikayla <mikayla@zed.dev>
On macOS, this will enable or disable the Metal HUD at runtime. Note
that this only works when Zed is bundled because it requires to set the
`MetalHudEnabled` key in the Info.plist.
Release Notes:
- Added a new `ToggleGraphicsProfiler` command that can be used as an
action (or via the `Help -> Toggle Graphics Profiler` menu) to
investigate graphics performance.
Release Notes:
- Fixed a bug that caused Zed to render at 60fps even on ProMotion
displays.
- Fixed a bug that could saturate the main thread event loop in certain
circumstances.
---------
Co-authored-by: Thorsten <thorsten@zed.dev>
Co-authored-by: Nathan <nathan@zed.dev>
Co-authored-by: Max <max@zed.dev>
This PR changes our approach to initializing the `SystemAppearance` so
that we can do it earlier in the startup process.
Previously we were using the appearance from the window, meaning that we
couldn't initialize the value until we first opened the window.
Now we read the `window_appearance` from the `AppContext`. On macOS this
is backed by the
[`effectiveAppearance`](https://developer.apple.com/documentation/appkit/nsapplication/2967171-effectiveappearance)
on the `NSApplication`.
We currently still watch for changes to the appearance at the window
level, as the only hook I could find in the documentation is
[`viewDidChangeEffectiveAppearance`](https://developer.apple.com/documentation/appkit/nsview/2977088-viewdidchangeeffectiveappearance),
which is at the `NSView` level.
In my testing this makes it so Zed appropriately chooses the correct
light/dark theme on startup.
Release Notes:
- N/A
This re-introduces the changes of #7305 but this time we create a
display link using the `NSScreen` associated with the window. We're
hoping we'll get these frame requests more reliably, and this seems
supported by the fact that awakening my laptop restores the frame
requests.
Release Notes:
- See #7305.
Co-authored-by: Nathan <nathan@zed.dev>
This is achieved by starting a `CADisplayLink` that will invoke the
`on_request_frame` callback at the refresh interval of the display.
We only actually draw frames when the window was dirty, or for 2 extra
seconds after the last input event to ensure ProMotion doesn't downclock
the refresh rate when the user is actively interacting with the window.
Release Notes:
- Improved performance when using a ProMotion display with fast key
repeat rates.
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
- Send app version and release stage to collab on connect
- Read the new header on the server
Release Notes:
- Added the ability to collaborate with users on different releases of
Zed.
The fonts we embed in Zed binary (Zed Sans & Zed Mono) weigh about 30Mb in total and we are cloning them several times during startup and loading of embedded assets (once explicitly in Zed and then under the hood in font-kit). Moreover, after loading we have at least 2 copies of each font in our program; one in .rdata and the other on the heap for use by font-kit.
This commit does away with that distinction (we're no longer allocating the font data) and slightly relaxes the interface of `TextSystem::add_fonts` by expecting one to pass `Cow<[u8]>` instead of `Arc<Vec<u8>>`. Additionally, `AssetSource::get` now returns `Cow<'static, [u8]>` instead of `Cow<'self, [u8]>`; all existing implementations conform with that change.
Note that this optimization takes effect only in Release builds, as the library we use for asset embedding - rust-embed - embeds the assets only in Release mode and in Dev builds it simply loads data from disk. Thus it returns `Cow<[u8]>` in it's interface. Therefore, we still copy that memory around in Dev builds, but that's not really an issue.
This patch makes no assumptions about the build profile we're running under, that's just an intrinsic property of rust-embed.
Tl;dr: this should shave off about 30Mb of memory usage and a fair chunk (~30ms) of startup time.
Release Notes:
- Improved startup time and memory usage.
Before this change if you had a matching binding and a pending key,
the matching binding happened unconditionally.
Now we will wait a second before triggering that binding to give you
time to complete the action.
When the `List` element's state is `ListState::reset()`, it eagerly
trashes it's cached element heights in anticipation of a prompt render.
But, due to the recent `display_layer` changes, that re-render is not
always forthcoming. This is a problem for `ListState::scroll()`, which
depends on these cached elements to correctly calculate the new logical
scroll offset.
Solutions we attempted:
- Cache the element heights and continue the scroll calculation
- This was conceptually incorrect, reset should only be called when the
underlying data has been changed, making any calculation with the old
results meaningless.
- Lazily re-compute the element heights in scroll
- Beyond being a non-trivial refactor, this would probably also cause us
to double-render the list in a single frame, which is bad.
- Cache the scroll offset and only calculate it in paint
- This solution felt awkward to implement and meant we can't supply
synchronous list scroll events.
- Delay resetting until paint
- This means that all of the other APIs that `ListState` supplies would
give temporarily incorrect results, worsening the problem
Given these issues, we settled on the solution with the least
compromises: drop scroll events if the state has been `reset()` between
`paint()` and `scroll()`. This shifts the responsibility for the problem
out of the List element and into consumers of `List`, if you want
perfectly smooth scrolling then you need to use `reset()` judiciously
and prefer `splice()`.
That said, I tested this by aggressively scrolling the Collab panel, and
it seems to work as well as it did before.
This PR also includes some initial testing infrastructure for working
with input from the platform and rendered elements.
Release Notes:
- N/A
I essentially went through the publicly exported items and marked these
that are e.g. leaky reexports as pub(crate). I expect that'd be done on
Tuesday anyways.
Release Notes:
- N/A