Release Notes:
- N/A
---
- Set `.SystemUIFont` as the GPUI default font.
- Add `Arial` to font fallback list.
- Add `Adwaita Sans` to default fallback list for Gnome.
- Move `Ubuntu` font to front of Gnome to make sure Ubuntu System takes
priority over `Ubuntu` font.
Our application get some crash report:
```
panicked at /Users/admin/.cargo/git/checkouts/zed-a70e2ad075855582/f1db3b4/crates/gpui/src/text_system.rs:150:9:
failed to resolve font 'Helvetica' or any of the fallbacks: Zed Plex Mono, Helvetica, Segoe UI, Cantarell, Ubuntu, Noto Sans, DejaVu Sans
```
This change to add `Arial` to fallback list, this font was included in
macOS and Windows.
Ref link (search "Arial"):
> Mac OS X (now known as [macOS](https://en.wikipedia.org/wiki/MacOS))
was the first Mac OS version to include Arial;
> https://en.wikipedia.org/wiki/Arial
- macOS Sequoia: https://support.apple.com/en-us/120414
- Windows 10:
https://learn.microsoft.com/en-us/typography/fonts/windows_10_font_list
- Gnome: https://developer.gnome.org/hig/guidelines/typography.html
Add an auto-profiler for our tests, to hopefully allow better triage of
performance impacts resulting from code changes. Comprehensive usage
docs are in the code.
Currently, it uses hyperfine under the hood and prints markdown to the
command line for all crates with relevant tests enabled. We may want to
expand this to allow outputting json in the future to allow e.g.
automatically comparing the difference between two runs on different
commits, and in general a lot of functionality could be added (maybe
measuring memory usage?).
It's enabled (mostly as an example) on two tests inside `gpui` and a
bunch of those inside `vim`. I'd have happily used `cargo bench`, but that's nightly-only.
Release Notes:
- N/A
Closes https://github.com/zed-industries/zed/issues/37621
Improves https://github.com/zed-industries/zed/issues/24623
Adding scrollbars withing Zed's UI currently is rather cumbersome, as it
requires the copying of a lot of code in order for these to work. Wiring
up settings for scrollbar visibilty always has to be done at the call
site and the state has to be saved and maintained by the caller as well.
Similarly, reserving space has to also be handled by the caller.
This PR changes the way scrollbars work in Zed fundamentally by making
use of the new `use_keyed_state` APIs: Instead of saving the state at
the call site, the window now keeps track of the state corresponding to
scrollbars. This enables us to add scrollbars with e.g. one simple call
on divs:
```rust
div()
.vertical_scrollbar(window, cx)
```
will add a scrollbar to the corresponding container. There are some more
improvements regarding tracking of scrollbar visibility settings (which
is now handled by a trait for each setting that supports this) as well
as reserving space.
Additionally, all needed stuff for layouting, catching events and
reserving space is also now managed by the scrollbar component instead.
This drastically reduces the amount of event listeners and makes
layouting of two scrollbars easier.
Furthermore, this paves the way for more improvements to scrollbars,
such as graceful auto-hide. Only downsight here is that we lose some
customizability in a few areas. However, once this lands, we gain the
ability to quickly follow these up without breaking stuff elsewhere.
This also already fixes a few bugs:
- Scrollbars no longer flicker on first render.
- Auto-hide now properly works for all scrollbars.
- If the content size changes, the scrollbar is updated on the same
frame. Both of these happened because we were computing the scrollbar
sizes too early, causing us to use the sizes from the previous frame or
unitialized sizes.
- The project panel no longer jumps if scrolled all the way to the
bottom and the scrollbar actually auto-hides.
Still TODO:
- [x] Fix scrolling in the debugger memory view
- [x] Clean up some more in the scrollbar component and reduce clones
there
- [x] Ensure we don't over-notify the entity the scrollbar is rendered
within
- [x] Make sure auto-hide properly works for all cases
- [x] Check whether we want to implement the scrollbar trait for
`UniformList`s as well
- ~~ [ ] Use for uniformlist where possible~~ Postponed
- [x] Improve layout for cases where we render both scrollbars.
Release Notes:
- N/A
Whilst looking into adding support for RainbowBrackes, we stumbled upon
this: Whereas for all properties during this blending, we take the value
of `other` if it is set, for the color we actually take `self.color`
instead of `other.color` if `self.color` is at full opacity.
`Hsla::blend` returns the latter color if it is at full opacity, which
seems wrong for this case. Hence, this PR swaps these.
Will not merge before the next release, to ensure that we don't break
something somewhere unexpected.
Release Notes:
- N/A
This reverts commit 40199266b6.
The issue with the commit is: ContentMask<Pixels>::intersect is doing
intersection of corner radii which makes inner containers use the max
corner radius out of all the parents when it should be more complex to
correctly clip children (clip sorting..?)
Release Notes:
- N/A
Editing JSON styles is not very helpful for bringing style changes back
to the actual code. This PR adds a buffer that pretends to be Rust,
applying any style attribute identifiers it finds. Also supports
completions with display of documentation. The effect of the currently
selected completion is previewed. Warning diagnostics appear on any
unrecognized identifier.
https://github.com/user-attachments/assets/af39ff0a-26a5-4835-a052-d8f642b2080c
Adds a `#[derive_inspector_reflection]` macro which allows these methods
to be enumerated and called by their name. The macro code changes were
95% generated by Zed Agent + Opus 4.
Release Notes:
* Added an element inspector for development. On debug builds,
`dev::ToggleInspector` will open a pane allowing inspecting of element
info and modifying styles.
Open inspector with `dev: toggle inspector` from command palette or
`cmd-alt-i` on mac or `ctrl-alt-i` on linux.
https://github.com/user-attachments/assets/54c43034-d40b-414e-ba9b-190bed2e6d2f
* Picking of elements via the mouse, with scroll wheel to inspect
occluded elements.
* Temporary manipulation of the selected element.
* Layout info and JSON-based style manipulation for `Div`.
* Navigation to code that constructed the element.
Big thanks to @as-cii and @maxdeviant for sorting out how to implement
the core of an inspector.
Release Notes:
- N/A
---------
Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Marshall Bowers <git@maxdeviant.com>
Co-authored-by: Federico Dionisi <code@fdionisi.me>
This seems more correct as corners are not necessarily only for rounding
radii.
Also applies clamping after scaling in `paint_quad`, deduplicating that
logic. This also provides a more precise result by doing the clamping
after scaling, avoiding floating point rounding issues (probably a
non-issue).
Release Notes:
- N/A
This PR adds a new `restrict_scroll_to_axis` style to allow consumers to
opt-in to the scrolling behavior found on the web.
When this is enabled the behavior will be such that:
- Scrolling using the mouse wheel will only scroll the Y axis
- Scrolling using the mouse wheel with <kbd>Shift</kbd> held will only
scroll the X axis
This behavior is useful in scenarios where you have some
vertically-scrollable content that is interspersed with
horizontally-scrollable elements, as otherwise the scroll will be
constantly hijacked by the horizontally-scrollable elements while trying
to scroll up and down in the vertically-scrollable container.
I think that this behavior should be the default, but it's a bit of a
sweeping change to make all at once, so for now it remains opt-in.
Release Notes:
- N/A
Adds a text property for controlling left, center, or right text
alignment.
#8792 should stay open since this doesn't add support for `justify`
(which would require a much bigger change since this can just alter the
origin of each line, but justify requires changing spacing, whereas
justify requires changes to each platform's shaping code).
Release Notes:
- N/A
TODO:
- [x] BackgroundOrientation
- [x] PatternDash
- [x] `pattern_horizontal_dash` & `pattern_vertical_dash`
- [x] Metal dash shader
- [x] Blade dash shader
- [x] Update ui::Divider to use new pattern
---
This PR introduces proper dashed dividers using the new `PatternDash`
background shader.

Before this we were using 128 elements to create a dashed divider, which
is both expensive, and would not scale beyond a certain size. This
allows us to simplify the divider element as well.
Changes:
- Adds `BackgroundOrientation` to `gpui::color::Background` to allow
specifying a direction for a pattern
- Adds the PatternDash pattern variant
- Updates `ui::Divider`'s dashed variants to be more efficient
Misc:
- Documents the `ui::Divider` component
- Treat `.metal` files as `C` in the Zed project until we get some metal
syntax highlighting.
Release Notes:
- N/A
TODO:
- [x] Add BackgroundTag::PatternSlash
- [x] Support metal slash pattern fills
- [x] Support blade slash pattern fills
---
Adds support for a new background type in gpui, `pattern_slash`.
Usage:
```rust
div().size(px(56.0)).bg(pattern_slash(gpui::red()))
```
This will create a 56px square with a red slash pattern fill.
You can run the pattern example with `cargo run -p gpui --example
pattern`:

---
After talking with @as-cii at length about how we want to support
patterns in gpui, we decided for now we'll simply add a new
BackgroundTag specific to this pattern.
It isn't the best long term plan however – we'll likely want to
introduce the concept of a `Fill` at some point so we can have
`Fill::Solid`, `Fill::Gradient(LinearGradient)`, etc in the future.
The pattern is designed to seamlessly tile vertically for elements of
the same height. For example, for use in editor line backgrounds:

---
Release Notes:
(do we do gpui release notes?)
- Adds support for slash pattern fills in `gpui`.
---------
Co-authored-by: Antonio Scandurra <me@as-cii.com>
There's still a bit more work to do on this, but this PR is compiling
(with warnings) after eliminating the key types. When the tasks below
are complete, this will be the new narrative for GPUI:
- `Entity<T>` - This replaces `View<T>`/`Model<T>`. It represents a unit
of state, and if `T` implements `Render`, then `Entity<T>` implements
`Element`.
- `&mut App` This replaces `AppContext` and represents the app.
- `&mut Context<T>` This replaces `ModelContext` and derefs to `App`. It
is provided by the framework when updating an entity.
- `&mut Window` Broken out of `&mut WindowContext` which no longer
exists. Every method that once took `&mut WindowContext` now takes `&mut
Window, &mut App` and every method that took `&mut ViewContext<T>` now
takes `&mut Window, &mut Context<T>`
Not pictured here are the two other failed attempts. It's been quite a
month!
Tasks:
- [x] Remove `View`, `ViewContext`, `WindowContext` and thread through
`Window`
- [x] [@cole-miller @mikayla-maki] Redraw window when entities change
- [x] [@cole-miller @mikayla-maki] Get examples and Zed running
- [x] [@cole-miller @mikayla-maki] Fix Zed rendering
- [x] [@mikayla-maki] Fix todo! macros and comments
- [x] Fix a bug where the editor would not be redrawn because of view
caching
- [x] remove publicness window.notify() and replace with
`AppContext::notify`
- [x] remove `observe_new_window_models`, replace with
`observe_new_models` with an optional window
- [x] Fix a bug where the project panel would not be redrawn because of
the wrong refresh() call being used
- [x] Fix the tests
- [x] Fix warnings by eliminating `Window` params or using `_`
- [x] Fix conflicts
- [x] Simplify generic code where possible
- [x] Rename types
- [ ] Update docs
### issues post merge
- [x] Issues switching between normal and insert mode
- [x] Assistant re-rendering failure
- [x] Vim test failures
- [x] Mac build issue
Release Notes:
- N/A
---------
Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: Mikayla <mikayla@zed.dev>
Co-authored-by: Joseph <joseph@zed.dev>
Co-authored-by: max <max@zed.dev>
Co-authored-by: Michael Sloan <michael@zed.dev>
Co-authored-by: Mikayla Maki <mikaylamaki@Mikaylas-MacBook-Pro.local>
Co-authored-by: Mikayla <mikayla.c.maki@gmail.com>
Co-authored-by: joão <joao@zed.dev>
Release Notes:
- N/A
---
Add this for let GPUI element to support fade in-out animation.
## Platform test
- [x] macOS
- [x] blade `cargo run -p gpui --example opacity --features macos-blade`
## Usage
```rs
div()
.opacity(0.5)
.bg(gpui::black())
.text_color(gpui::black())
.child("Hello world")
```
This will apply the `opacity` it self and all children to use `opacity`
value to render colors.
## Example
```
cargo run -p gpui --example opacity
cargo run -p gpui --example opacity --features macos-blade
```
<img width="612" alt="image"
src="https://github.com/user-attachments/assets/f1da87ed-31f5-4b55-a023-39e8ee1ba349">
For future reference: WIP branch of copy/pasting a mixture of images and
text: https://github.com/zed-industries/zed/tree/copy-paste-images -
we'll come back to that one after landing this one.
Release Notes:
- You can now paste images into the Assistant Panel to include them as
context. Currently works only on Mac, and with Anthropic models. Future
support is planned for more models, operating systems, and image
clipboard operations.
---------
Co-authored-by: Antonio <antonio@zed.dev>
Co-authored-by: Mikayla <mikayla@zed.dev>
Co-authored-by: Jason <jason@zed.dev>
Co-authored-by: Kyle <kylek@zed.dev>
Supersedes https://github.com/zed-industries/zed/pull/12090fixes#5180fixes#5055
See original PR for an example of the feature at work.
This PR changes the settings interface to be backwards compatible, and
adds the `ui_font_fallbacks`, `buffer_font_fallbacks`, and
`terminal.font_fallbacks` settings.
Release Notes:
- Added support for font fallbacks via three new settings:
`ui_font_fallbacks`, `buffer_font_fallbacks`, and
`terminal.font_fallbacks`.(#5180, #5055).
---------
Co-authored-by: Junkui Zhang <364772080@qq.com>
Release Notes:
- Fixed default font_family crash on Windows, use `Segoe UI`.
## Crash error message
```
thread 'main' panicked at crates\gpui\src\text_system.rs:150:9:
failed to resolve font 'Helvetica' or any of the fallbacks:
Zed Plex Mono, Helvetica, Cantarell, Ubuntu, Noto Sans, DejaVu Sans
```
Still TODO:
* Disable the new save-as for local projects
* Wire up sending the new path to the remote server
Release Notes:
- Added the ability to "Save-as" in remote projects
---------
Co-authored-by: Nathan <nathan@zed.dev>
Co-authored-by: Bennet <bennetbo@gmx.de>
The new `ElementContext` was originally introduced to ensure the element
APIs could only be used inside of elements. Unfortunately, there were
many places where some of those APIs needed to be used, so
`WindowContext::with_element_context` was introduced, which defeated the
original safety purposes of having a specific context for elements.
This pull request merges `ElementContext` into `WindowContext` and adds
(debug) runtime checks to APIs that can only be used during certain
phases of element drawing.
Release Notes:
- N/A
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
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 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 is a rebase of @gabydds text_system updates. with some small
cleanups.
Currently cannot test this as build is not working in linux. Im just
putting it up here before I forget about it.
---------
Co-authored-by: gabydd <gabydinnerdavid@gmail.com>
Co-authored-by: Mikayla Maki <mikayla@zed.dev>
This PR fixes this error when compiling a release build:
<img width="504" alt="Screenshot 2024-01-30 at 2 30 38 PM"
src="https://github.com/zed-industries/zed/assets/1486634/96470735-2b9e-4945-b4c3-c86ef0168b8c">
`DebugBelow` only exists when compiling with `debug_assertions`, so we
only want to implement it using that same criterion.
Release Notes:
- N/A
This should prevent a class of bugs where one queries the wrong type of
global, which results in oddities at runtime.
Release Notes:
- N/A
---------
Co-authored-by: Marshall <marshall@zed.dev>
Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>