## Motivation
This PR unifies the async execution infrastructure between GPUI and
other components that depend on the `scheduler` crate (such as our cloud
codebase). By having a scheduler that lives independently of GPUI, we
can enable deterministic testing across the entire stack - testing GPUI
applications alongside cloud services with a single, unified scheduler.
## Summary
This PR completes the integration of the `scheduler` crate into GPUI,
unifying async execution and enabling deterministic testing of GPUI
combined with other components that depend on the scheduler crate.
## Key Changes
### Scheduler Integration (Phases 1-5, previously completed)
- `TestDispatcher` now delegates to `TestScheduler` for timing, clock,
RNG, and task scheduling
- `PlatformScheduler` implements the `Scheduler` trait for production
use
- GPUI executors wrap scheduler executors, selecting `TestScheduler` or
`PlatformScheduler` based on environment
- Unified blocking logic via `Scheduler::block()`
### Dead Code Cleanup
- Deleted orphaned `crates/gpui/src/platform/platform_scheduler.rs`
(older incompatible version)
## Intentional Removals
### `spawn_labeled` and `deprioritize` removed
The `TaskLabel` system (`spawn_labeled`, `deprioritize`) was removed
during this integration. It was only used in a few places for test
ordering control.
cc @maxbrunsfeld @as-cii - The new priority-weighted scheduling in
`TestScheduler` provides similar functionality through
`Priority::High/Medium/Low`. If `deprioritize` is important for specific
test scenarios, we could add it back to the scheduler crate. Let me know
if this is blocking anything.
### `start_waiting` / `finish_waiting` debug methods removed
Replaced by `TracingWaker` in `TestScheduler` - run tests with
`PENDING_TRACES=1` to see backtraces of pending futures when parking is
forbidden.
### Realtime Priority removed
The realtime priority feature was unused in the codebase. I'd prefer to
reintroduce it when we have an actual use case, as the implementation
(bounded channel with capacity 1) could potentially block the main
thread. Having a real use case will help us validate the design.
## Testing
- All GPUI tests pass
- All scheduler tests pass
- Clippy clean
## Architecture
```
┌─────────────────────────────────────────────────────────────┐
│ GPUI │
│ ┌──────────────────────┐ ┌────────────────────────────┐ │
│ │ gpui::Background- │ │ gpui::ForegroundExecutor │ │
│ │ Executor │ │ - wraps scheduler:: │ │
│ │ - scheduler: Arc< │ │ ForegroundExecutor │ │
│ │ dyn Scheduler> │ └────────────┬───────────────┘ │
│ └──────────┬───────────┘ │ │
│ │ │ │
│ └──────────┬──────────────────┘ │
│ ▼ │
│ ┌───────────────────────┐ │
│ │ Arc<dyn Scheduler> │ │
│ └───────────┬───────────┘ │
│ ┌──────────────┴──────────────┐ │
│ ▼ ▼ │
│ ┌──────────────────┐ ┌────────────────────┐ │
│ │ PlatformScheduler│ │ TestScheduler │ │
│ │ (production) │ │ (deterministic) │ │
│ └──────────────────┘ └────────────────────┘ │
└─────────────────────────────────────────────────────────────┘
```
Release Notes:
- N/A
---------
Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: Yara <git@yara.blue>
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
Closes https://github.com/zed-industries/zed/issues/43208
This PR essentially unblocks the editable number field. The function
that shapes editor lines was hard-coding text alignment to the left,
meaning that whatever different alignment we'd pass through
`EditorStyles`would be ignored. To solve this, I just added a text align
and align width fields to the line paint function and updated all call
sites keeping the default configuration. Had to also add an
`alignment_offset()` helper to make sure the cursor positioning, the
selection background element, and the click-to-focus functionality were
kept in-sync with the non-left aligned editor.
Then... the big star of the show here is being able to add the `mode`
method to the number field, which uses `TextAlign::Center`, thus making
it work as we designed it to work.
https://github.com/user-attachments/assets/3539c976-d7bf-4d94-8188-a14328f94fbf
Next up, is turning the number filed to edit mode where applicable.
Release Notes:
- Fixed a bug where different text alignment configurations (i.e.,
center and right-aligned) wouldn't take effect in editors.
This PR is an additive change introducing the `truncate_start` method to
labels, which gives us the ability to add an ellipsis at the beginning
of the text as opposed to the regular `truncate`. This will be generally
used for truncating file paths, where the end is typically more relevant
than the beginning, but given it's a general method, there's the
possibility to be used anywhere else, too.
<img width="500" height="690" alt="Screenshot 2025-12-17 at 12 35@2x"
src="https://github.com/user-attachments/assets/f853f5a3-60b3-4380-a11c-bb47868a4470"
/>
Release Notes:
- N/A
---------
Co-authored-by: Lukas Wirth <lukas@zed.dev>
Closes#43355
Fixes the issue were code actions with long labels would get cut off
without being able to see the full description. We now properly truncate
those labels with an ellipsis and show the full description in an aside.
Release Notes:
- Added ellipsis to truncated code actions and an aside showing the full
action description.
This reverts commit 082b80ec89.
This broke clicking, e.g. in snippets like
```rs
let x = vec![
1, 2, //
3,
];
```
clicking between `2` and `,` is quite off now.
Release Notes:
- N/A
Supersedes https://github.com/zed-industries/zed/pull/39910
At some point, these two (`index_for_x` and `closest_index_for_x`)
methods where separated out and some code paths used one, while other
code paths took the other. That said, their behavior is almost
identical:
- `index_for_x` computes the index behind the pixel offset, and returns
`None` if there's an overshoot
- `closest_index_for_x` computes the nearest index to the pixel offset,
taking into account whether the offset is over halfway through or not.
If there's an overshoot, it returns the length of the line.
Given these two behaviors, `closest_index_for_x` seems to be a more
useful API than `index_for_x`, and indeed the display map and other core
editor features use it extensively. So this PR is an experiment in
simply replacing one behavior with the other.
Release Notes:
- Improved the accuracy of mouse selections in Markdown
Release Notes:
- N/A
When I was implementing Input, I often used `TextRun`, but `background`,
`underline` and `strikethrough` were often not used.
So make change to simplify it.
The issues is that the closure supplied to `request_measured_layout`
could be run multiple times with differing `known_dimensions`. This in
turn will mean we truncate the font runs once, inserting a multibyte
char at the end but then in the next iteration use those truncated runs
for possible the original untruncated string which has multibyte
characters overlapping the now truncated run end resulting in a faulty
utf8 boundary index.
Solution to this is simple, truncate a clone of the runs when needed
instead of modifying the original.
Fixes https://github.com/zed-industries/zed/issues/36925
Fixed ZED-2FF
Fixes ZED-2KM
Fixes ZED-2KK
Fixes ZED-1FF
Fixes ZED-255
Fixes ZED-2JD
Fixes ZED-2FX
Fixes ZED-2K2
Fixes ZED-2JX
Fixes ZED-2GE
Fixes ZED-2FC
Fixes ZED-2GD
Fixes ZED-2HY
Fixes ZED-2HR
Fixes ZED-2FN
Fixes ZED-2GT
Fixes ZED-2FK
Fixes ZED-2EY
Fixes ZED-27E
Fixes ZED-272
Fixes ZED-2EM
Fixes ZED-2CC
Fixes ZED-29V
Fixes ZED-25B
Fixes ZED-257
Fixes ZED-24R
Fixes ZED-24Q
Fixes ZED-23Z
Fixes ZED-227
Release Notes:
- Fixed a crash in text shaping when truncating rendered text
Close#35715
Release Notes:
- Fixed to wrap long URLs in editor.
<img width="836" height="740" alt="image"
src="https://github.com/user-attachments/assets/635ce792-5f19-4c76-b131-0d270d09b103"
/>
I remember when I was working on CJK line wrapping support in the early
days, I considered making `\` a line wrapping character, but for some
reason it was on the list of characters that were not allowed to wrap.
In reference to VS Code, it looks like `&`, `/`, `?` should wrap, so I
removed all of them.
---------
Co-authored-by: Mikayla Maki <mikayla@zed.dev>
This relands https://github.com/zed-industries/zed/pull/37175 as
https://github.com/zed-industries/zed/pull/39886 fixed the jiggling
issue.
Currently when we render text with differing styles adjacently we might
form a ligature between the text, causing the ligature forming
characters to take on one of the two styles. This can especially become
confusing when a ligature is formed between actual text and inlay hints.
Annoyingly, the only ways to prevent this with core text is to either
render each run separately, or to insert a zero-width non-joiner to
force core text to break the ligatures apart, as it otherwise will merge
subsequent font runs of the same fonts.
We currently do layouting on a per line basis and it is unlikely we want
to change that as it would incur a lot of complexity and annoyances to
merge things back into a line, so this goes with the other approach of
inserting ZWNJ characters instead.
Note that neither linux nor windows seem to currently render ligatures,
so this only concerns macOS rendering at the moment.
Closes https://github.com/zed-industries/zed/issues/23194
Release Notes:
- Fixed ligatures forming between real text and inlay hints on macOS
Reverts zed-industries/zed#39581
This has done its job uncovering incorrect constructions of the
highlight ranges pretty fast. Reverting this to prevent this from
spilling into preview until I can fix the call sites next week
Closes#5355
Release Notes:
- Fixed rendering glitches with files with more than 16 million lines
(that occured due to floating number rounding errors).
---------
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
serde 1.0.221 introduced serde_core into the build graph, which should
render explicitly depending on serde_derive for faster build times an
obsolote method.
Besides, I'm not even sure if that worked for us. My hunch is that at
least one of our deps would have `serde` with derive feature enabled..
and then, most of the crates using `serde_derive` explicitly were also
depending on gpui, which depended on `serde`.. thus, we wouldn't have
gained anything from explicit dep on `serde_derive`
Release Notes:
- N/A
Currently when we render text with differing styles adjacently we might
form a ligature between the text, causing the ligature forming
characters to take on one of the two styles. This can especially become
confusing when a ligature is formed between actual text and inlay hints.
Annoyingly, the only ways to prevent this with core text is to either
render each run separately, or to insert a zero-width non-joiner to
force core text to break the ligatures apart, as it otherwise will merge
subsequent font runs of the same fonts.
We currently do layouting on a per line basis and it is unlikely we want
to change that as it would incur a lot of complexity and annoyances to
merge things back into a line, so this goes with the other approach of
inserting ZWNJ characters instead.
Note that neither linux nor windows seem to currently render ligatures,
so this only concerns macOS rendering at the moment.
Release Notes:
- Fixed ligatures forming between real text and inlay hints on macOS
The Zed Plex fonts were found to violate the OFL by using the word Plex
in the name.
Lilex has better ligatures and box-drawing characters than Zed Plex
Mono, but Zed Plex Sans should be identical
to IBM Plex Sans.
Closes#15542Closeszed-industries/zed-fonts#31
Release Notes:
- The "Zed Plex Sans" and "Zed Plex Mono" fonts have been replaced with
"IBM Plex Sans" and "Lilex". The old names still work for backward
compatibility. Other than fixing line-drawing characters, and improving
the ligatures, there should be little visual change as the fonts are all
of the same family.
- Introduced ".ZedSans" and ".ZedMono" as aliases to allow us to easily
change the default fonts in the future. These currently default to "IBM
Plex Sans" and "Lilex" respectively.
Closes#18263
Improvements:
• **Batch text rendering** - Combine adjacent cells with identical
styling into single text runs to reduce draw calls
• **Throttle hyperlink searches** - Limit hyperlink detection to every
100ms or when mouse moves >5px to reduce CPU usage
• **Pre-allocate collections** - Use `Vec::with_capacity()` for cells,
runs, and regions to minimize reallocations
• **Optimize background regions** - Merge adjacent background rectangles
to reduce number of draw operations
• **Cache selection text** - Only compute terminal selection string when
selection exists
Release Notes:
- Improved terminal rendering performance.
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Closes#30017
* While generating the settings JSON schema, defaults all schema
definitions to reject unknown fields via `additionalProperties: false`.
* Uses `unevaluatedProperties: false` at the top level to check fields
that remain after the settings field names + release stage override
field names.
* Changes json schema version from `draft07` to `draft_2019_09` to have
support for `unevaluatedProperties`.
Release Notes:
- Added warnings for unknown fields when editing `settings.json`.
The major change in schemars 1.0 is that now schemas are represented as
plain json values instead of specialized datatypes. This allows for more
concise construction and manipulation.
This change also improves how settings schemas are generated. Each top
level settings type was being generated as a full root schema including
the definitions it references, and then these were merged. This meant
generating all shared definitions multiple times, and might have bugs in
cases where there are two types with the same names.
Now instead the schemar generator's `definitions` are built up as they
normally are and the `Settings` trait no longer has a special
`json_schema` method. To handle types that have schema that vary at
runtime (`FontFamilyName`, `ThemeName`, etc), values of
`ParameterizedJsonSchema` are collected by `inventory`, and the schema
definitions for these types are replaced.
To help check that this doesn't break anything, I tried to minimize the
overall [schema
diff](https://gist.github.com/mgsloan/1de549def20399d6f37943a3c1583ee7)
with some patches to make the order more consistent + schemas also
sorted with `jq -S .`. A skim of the diff shows that the diffs come
from:
* `enum: ["value"]` turning into `const: "value"`
* Differences in handling of newlines for "description"
* Schemas for generic types no longer including the parameter name, now
all disambiguation is with numeric suffixes
* Enums now using `oneOf` instead of `anyOf`.
Release Notes:
- N/A
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 glyphs field is usually larger than 8 elements, and SmallVec is not
efficient when it cannot store the value inline.
This change also adds precise glyphs run preallocation in some places
`ShapedRun` is constructed.
Release Notes:
- N/A
This PR renames the `regex_search` tool to `grep` because I think it
conveys more meaning to the model, the idea of searching the filesystem
with a regular expression. It's also one word and the model seems to be
using it effectively after some additional prompt tuning.
It also takes an include pattern to filter on the specific files we try
to search. I'd like to encourage the model to scope its searches more
aggressively, as in my testing, I'm only seeing it filter on file
extension.
Release Notes:
- N/A
Earlier, I merged #24723
Before merging it, I made a change that was incorrect and fast followed
with a fix: #28548
Following that fix, @bennetbo discovered that the modals where no longer
highlighting correctly, particularly the outline modal.
So I'm going to revert it all.
Release Notes:
- N/A
Release Notes:
- N/A
---
Fix this long-standing issue so that we can support Link hover colors.
And renamed `text_layout` example to `text_style`.
---
I spent some time studying the process of this text style change and
found it a bit complicated.
At first, I thought there was a problem with refine and it was not
passed properly. After changing it, I found that it was not the problem.
Then I found that it was because `TextRun` had already stored the
`color`, `background`, `underline`, `strikethrough` in TextRun in the
`request_layout` stage. They area calculate at the `request_layout`
stage, but request_layout stage there was no `hitbox`, so the hover
state was not obtained.
```bash
cargo run -p gpui --example text_style
```
https://github.com/user-attachments/assets/24f88f73-775e-41d3-a502-75a7a39ac82b
---------
Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>
Release Notes:
- Fixed a rendering bug that caused context in the agent to not wrap
properly.
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Zed AI <ai+claude-3.7@zed.dev>
