When adding selections above/below with `skip_soft_wrap: true`, use
buffer column positions instead of pixel positions. This ensures
selections are placed at the same column offset in the buffer rather
than at the same visual position, which was incorrect for soft-wrapped
lines.
For example, selecting "how" in a wrapped line:
````
1. Very long line to
show [how] a wrapped
line would look
2. Very long line to
show how a wrapped
line would look
````
Now correctly adds a selection at the same buffer column in the next
line:
````
1. Very long line to
show [how] a wrapped
line would look
2. Very long line to
show [how] a wrapped
line would look
````
Closes#42137
Release Notes:
- Improved `editor: add selection above` and `editor: add selection
below` to select at the same text column when skipping soft-wrapped
lines, instead of the same visual position
Closes#45046
The root of the issue is anchor resolution. When we apply adjacent
edits, they get merged into a single edit. In the scenario described in
the issue, this is what happens:
1. We create an anchor at the end of each selection (bias::right) on the
snapshot before the edits.
2. We collect the edits and apply them to the buffer.
3. Since the edits are adjacent (>=), the buffer merges them into a
single edit.
4. As a result, we apply one edit to the text buffer, creating a single
visible fragment with length = 3.
5. The buffer ends up with fragments like: [F(len = 3, visible = true),
F(len = 1, visible = false), ...]
6. After the edits, we resolve the previously created anchors to produce
zero-width selections (cursors).
7. All anchors resolve into deleted fragments, so their resolved offset
equals the cumulative visible offset, which is 3.
8. We now have 3 cursors with identical coordinates (0;3).
9. These cursors get merged into a single cursor.
I tried several approaches, but they either felt wrong or didn’t work.
In particular, I tried adjusting anchor resolution using the delta
stored in handle_input, but this doesn’t help because selections are
merged immediately after anchor resolution.
The only workable solution I found is to avoid anchors entirely for the
adjacent-edit case. Instead, we can compute the final cursor positions
directly from the edits and create the selections based on that
information.
Release Notes:
- Fixed an issue where adjacent selection insert would merge cursors
---------
Signed-off-by: Marco Mihai Condrache <52580954+marcocondrache@users.noreply.github.com>
Co-authored-by: Lukas Wirth <me@lukaswirth.dev>
This mimics VSCode's `files.readonlyExclude` setting, to allow setting
specific path matches as readonly locations like lockfiles and generated
sources etc.
Also renders a lock icon to the right side of the path names for
readonly files now.
This does a couple more things for completion sake:
- Tabs of readonly buffers now render a file lock icon
- Multibuffer buffer headers now render a file lock icon if the excerpts
buffer is readonly
- ReadWrite multibuffers now no longer allow edits to read only buffers
contained within
Release Notes:
- Added `read_only_files` setting to allow specifying glob patterns of
files that should not be editable by default
---------
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
## Summary
Fixes#44812
The hover highlight for clickable inlay hints was not covering the last
character when the label contained multi-byte UTF-8 characters (e.g.,
`→`).
## Problem
When hovering over an inlay hint like `→ app/Livewire/UserProfile.php`,
the highlight/underline stopped one character short, leaving the final
character unhighlighted.
**Root cause:** `find_hovered_hint_part()` in `hover_popover.rs` used
`part.value.chars().count()` (character count) but `InlayOffset` wraps
`MultiBufferOffset(pub usize)` which is byte-based.
For a label like `→ app/Livewire/UserProfile.php`:
- Byte length: 32 (the `→` character is 3 bytes in UTF-8)
- Character count: 30
This mismatch caused the calculated highlight range to end 2 bytes
short.
## Changes
1. **Use byte length instead of character count** (line 112):
```rust
// Before (buggy)
let part_len = part.value.chars().count();
// After (correct)
let part_len = part.value.len();
```
2. **Fix boundary condition** (line 113): Changed `>` to `>=` for
correct `[start, end)` range semantics when hovering at part boundaries.
3. **Rename variable** for clarity: `hovered_character` →
`offset_in_hint` since it's a byte offset, not a character position.
4. **Add unit test** reproducing the exact scenario from the issue with
multi-byte UTF-8 characters.
## Testing
Added `test_find_hovered_hint_part_with_multibyte_characters` which:
- Verifies the label `→ app/Livewire/UserProfile.php` has 32 bytes but
30 characters
- Tests hovering at the last byte correctly returns the full range
- Tests boundary behavior with multiple label parts containing
multi-byte characters
Release Notes:
- Fixed inlay hint hover highlight not covering the last character when
the label contains multi-byte UTF-8 characters
Closes#45496
Should help #43460
And probably also #44503
The minimap usually renders about 10x more lines of code and shaped text
than the editor. With expensive fonts such as Google Sans Code, this can
cause noticeable lag, since we attempt to synthesize 300+ lines of code
using a heavy font. Because minimap text is rendered at around 2px and
is essentially illegible, it doesn’t make sense to use the custom buffer
font.
Release Notes:
- Improved minimap performance when using custom fonts
---------
Signed-off-by: Marco Mihai Condrache <52580954+marcocondrache@users.noreply.github.com>
Closes#45960
Release Notes:
- Made the `extension` key context case-insensitive. This e.g. enables
the `markdown: Open Preview` action to also handle files where the
extension is capitalised as MD (case-sensitive file system).
This PR reworks the (still feature-gated) side-by-side diff view to use
a different approach to representing the multibuffers on the left- and
right-hand sides.
Previously, these two multibuffers used identical sets of buffers and
excerpts, and were made to behave differently by adding a new knob to
the multibuffer controlling how diffs are displayed. Specifically, the
left-hand side multibuffer would filter out the added range of each hunk
from the excerpts using a new `FilteredInsertedHunk` diff transform, and
the right-hand side would simply not show the deleted sides of expanded
hunks. This approach has some problems:
- Line numbers, and actions that navigate by line number, behaved
incorrectly for the left-hand side.
- Syntax highlighting and other features that use the buffer syntax tree
also behaved incorrectly for the left-hand side.
In this PR, we've switched to using independent buffers to build the
left-hand side. These buffers are constructed using the base texts for
the corresponding diffs, and their lifecycle is managed by `BufferDiff`.
The red "deleted" regions on the left-hand side are represented by
`BufferContent` diff transforms, not `DeletedHunk` transforms. This
means each excerpt on the left represents a contiguous slice of a single
buffer, which fixes the above issues by construction.
The tradeoff with this new approach is that we now have to manually
synchronize excerpt ranges from the right side to the left, which we do
using `BufferDiffSnapshot::row_to_base_text_row`.
Release Notes:
- N/A
---------
Co-authored-by: cameron <cameron.studdstreet@gmail.com>
Co-authored-by: HactarCE <6060305+HactarCE@users.noreply.github.com>
Co-authored-by: Miguel Raz Guzmán Macedo <miguel@zed.dev>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Cameron <cameron@zed.dev>
Closes https://github.com/zed-industries/zed/issues/45630
Remote host location alone is not enough to distinguish between remote
worktrees: different remote projects open in different windows will have
the same remote host location and _will_ have the same `WorktreeId`.
Thus, require an associated `WorktreeStore` with all
`WorktreeId`-related trust questions, and store those IDs based on the
store key.
Release Notes:
- Fixed worktree trust handling of multiple projects on the same remote
host
There were several places adding a copy icon button, so thought of
encapsulating the logic to copy a given string into the clipboard (and
other small details like swapping the icon and tooltip if copied) into a
component, making it easier to introduce this sort of functionality in
the future, with fewer lines of code.
All it takes (for the simplest case) is:
```rs
CopyButton::new(your_message)
```
<img width="600" height="714" alt="Screenshot 2025-12-29 at 10 50@2x"
src="https://github.com/user-attachments/assets/e6949863-a056-4855-82d8-e4ffb5d62c90"
/>
Release Notes:
- N/A
Follow-up to https://github.com/zed-industries/zed/pull/45164 which
caused the active line number to always be `0` instead of the actual
current line number. No release notes since its only on nightly
Release Notes:
- N/A
Closes#23158
Release Notes:
- Added a right-click context menu for the thread view in the agent
panel.
---------
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Closes#18287
Release Notes:
- Added autocomplete for lsp initialization_options
## Description
This MR adds the following code-changes:
- `initialization_options_schema` to the `LspAdapter` to get JSON
Schema's from the language server
- Adds a post-processing step to inject schema request paths into the
settings schema in `SettingsStore::json_schema`
- Adds an implementation for fetching the schema for rust-analyzer which
fetches it from the binary it is provided with
- Similarly for ruff
<img width="857" height="836" alt="image"
src="https://github.com/user-attachments/assets/3cc10883-364f-4f04-b3b9-3c3881f64252"
/>
## Open Questions(Would be nice to get some advice here)
- Binary Fetching:
- I'm pretty sure the binary fetching is suboptimal. The main problem
here was getting access to the delegate but i figured that out
eventually in a way that i _hope_ should be fine.
- The toolchain and binary options can differ from what the user has
configured potentially leading to mismatches in the autocomplete values
returned(these are probably rarely changed though). I could not really
find a way to fetch these in this context so the provided ones are for
now just `default` values.
- For the trait API it is just provided a binary, since i wanted to use
the potentially cached binary from the CachedLspAdapter. Is that fine
our should the arguments be passed to the LspAdapter such that it can
potentially download the LSP?
- As for those LSPs with JSON schema files in their repositories i can
add the files to zed manually e.g. in
languages/language/initialization_options_schema.json, which could cause
mismatches with the actual binary. Is there a preferred approach for Zed
here also with regards to updating them?
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.
The failure would happen if the current version of the file was open as
an editor. This happened because the git blob and current version of the
buffer would have the same `ProjectPath`.
The fix was adding a new `DiskState::Historic` variant to represent
buffers that are past versions of a file (usually a snapshot from
version control). Historic buffers don't return a `ProjectPath` because
the file isn't real, thus there isn't and shouldn't be a `ProjectPath`
to it. (At least with the current way we represent a project path)
I also change the display name to use the local OS's path style instead
of being hardcoded to Posix, and cleaned up some code too.
Release Notes:
- N/A
---------
Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: cameron <cameron.studdstreet@gmail.com>
Co-authored-by: xipengjin <jinxp18@gmail.com>
Closes#42586
This includes a rewrite of `calculate_relative_line_numbers()`. Now it's
linear-time with respect to the number of rows displayed, instead of
linear time with respect to the number of rows displayed _plus_ the
distance to the base row.
Release Notes:
- Improved performance when using relative line numbers in large files
- Fixed relative line numbers not appearing in sticky headers
Closes#5089
Release notes:
- Markdown lists now continue automatically when you press Enter
(unordered, ordered, and task lists). This can be configured with
`extend_list_on_newline` (default: true).
- You can now indent list markers with Tab to quickly create nested
lists. This can be configured with `indent_list_on_tab` (default: true).
---------
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
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#23367
**Summary**
- Prevents inline diagnostics, code actions, blame annotations, and
hover popovers from overlapping with the right-click context menu by
checking for `mouse_context_menu` presence before rendering these UI
elements.
PS: Same behaviour is present in other editors like VS Code.
**Screen recording**
https://github.com/user-attachments/assets/8290412b-0f86-4985-8c70-13440686e530
Release Notes:
- N/A *or* Added/Fixed/Improved ...
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.
Closes#13304
Release Notes:
- Add global `git status` and `git diff` on/off in one place instead of
control everywhere
We can first review to ensure this change meets both `Zed` and user
requirements, as well as code rules. Currently, we only support
user-level settings. We can wait for this PR:
https://github.com/zed-industries/zed/pull/43173 to be merged, then
modify it to support both user and project levels.
Closes#42934
Release Notes:
- Fix toggling adjacent git-diff hunks based on the reported behaviour
in #42934
---------
Co-authored-by: Jakub Konka <kubkon@jakubkonka.com>
Closes#26424
Supersedes #35328
Originally, `git::blame` uses its own `ParsedCommitMessage` as the
source for the commit information, including the PR section. This
changes unifies this with `git::repository` and `git_ui::git_panel` by
moving this and some other commit-related structs to `git::commit`
instead, and making both `git_ui::blame_ui` and `git_ui::git_panel` pull
their information from these structs.
Release notes :
- (Let's Git Together) Fixed the commit tooltip in the git panel not
showing information like avatars.
---------
Co-authored-by: Cole Miller <cole@zed.dev>
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
This PR introduces support for Next Edit Suggestions while doing away
with calling legacy endpoints. In the process we've also removed support
for cycling completions, as NES will give us a single prediction, for
the most part.
Closes#30124
Release Notes:
- Zed now supports Copilot's [Next Edit
Suggestions](https://code.visualstudio.com/blogs/2025/02/12/next-edit-suggestions).
## Summary
Addresses #16965
This PR adds support for **opening and saving** files with legacy
encodings (non-UTF-8).
Previously, Zed failed to open files encoded in Shift-JIS, EUC-JP, Big5,
etc., displaying a "Could not open file" error screen. This PR
implements automatic encoding detection upon opening and ensures the
original encoding is preserved when saving.
## Implementation Details
1. **Worktree (Loading)**:
* Updated `load_file` to use `chardetng` for automatic encoding
detection.
* Files are decoded to UTF-8 internal strings for editing, while
preserving the detected `Encoding` metadata.
2. **Language / Buffer**:
* Added an `encoding` field to the `Buffer` struct to store the detected
encoding.
3. **Worktree (Saving)**:
* Updated `write_file` to accept the stored encoding.
* **Performance Optimization**:
* **UTF-8 Path**: Uses the existing optimized `fs.save` (streaming
chunks directly from Rope), ensuring no performance regression for the
vast majority of files.
* **Legacy Encoding Path**: Implemented a fallback that converts the
Rope to a contiguous `String/Bytes` in memory, re-encodes it to the
target format (e.g., Shift-JIS), and writes it to disk.
* *Note*: This fallback involves memory allocation, but it is necessary
to support legacy encodings without refactoring the `fs` crate's
streaming interfaces.
## Changes
- `crates/worktree`:
- Add dependencies: `encoding_rs`, `chardetng`.
- Update `load_file` to detect encoding and decode content.
- Update `write_file` to handle re-encoding on save.
- `crates/language`: Add `encoding` field and accessors to `Buffer`.
- `crates/project`: Pass encoding information between Worktree and
Buffer.
- `crates/vim`: Update `:w` command to use the new `write_file`
signature.
## Verification
I validated this manually using a Rust script to generate test files
with various encodings.
**Results:**
* ✅ **Success (Opened & Saved correctly):**
* **Japanese:** `Shift-JIS` (CP932), `EUC-JP`, `ISO-2022-JP`
* **Chinese:** `Big5` (Traditional), `GBK/GB2312` (Simplified)
* **Western/Unicode:** `Windows-1252` (CP1252), `UTF-16LE`, `UTF-16BE`
* ⚠️ **limitations (Detection accuracy):**
* Some specific encodings like `KOI8-R` or generic `Latin1` (ISO-8859-1)
may partially display replacement characters (`?`) depending on the file
content length. This is a known limitation of the heuristic detection
library (`chardetng`) rather than the saving logic.
Release Notes:
- Added support for opening and saving files with legacy encodings
(Shift-JIS, Big5, etc.)
---------
Co-authored-by: CrazyboyQCD <53971641+CrazyboyQCD@users.noreply.github.com>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Closes #ISSUE
Problem:
- The status bar’s pending keystroke indicator (shown next to --NORMAL--
in Vim mode) didn’t clear when focus moved to another context, e.g.
hitting g in the editor then clicking the Git panel. The keymap state
correctly canceled the prefix, but observers that render the indicator
never received a “pending input changed” notification, so the UI kept
showing stale prefixes until a new keystroke occurred.
Fix:
- The change introduces a `pending_input_changed_queued` flag and a new
helper `notify_pending_input_if_needed` which will flushes the queued
notification as soon as we have an App context. The
`pending_input_changed` now resets the flag after notifying subscribers.
Before:
https://github.com/user-attachments/assets/7bec4c34-acbf-42bd-b0d1-88df5ff099aa
After:
https://github.com/user-attachments/assets/2264dc93-3405-4d63-ad8f-50ada6733ae7
Release Notes:
- Fixed: pending keybinding prefixes on the status bar now clear
immediately when focus moves to another panel or UI context.
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Release Notes:
- Improved display map rendering performance with many lines in the the multi-buffer.
---------
Co-authored-by: cameron <cameron.studdstreet@gmail.com>
Co-authored-by: Cole Miller <cole@zed.dev>
Some refactoring I ran into while working on automatic Markdown list
continuation on newline.
This PR:
- Moves `comment_delimiter` and `documentation_delimiter` computation
outside of newline method.
- Adds `NewlineFormatting`, which holds info about how newlines affect
indentation and other formatting we need.
- Moves newline-specific methods into the new `NewlineFormatting`
struct.
Release Notes:
- N/A
Fixes an issue where we would update the imports after a file rename in
TypeScript, but those changes wouldn't surface anywhere until those
buffers were manually opened
(https://github.com/zed-industries/zed/issues/35930#issuecomment-3366852945).
In https://github.com/zed-industries/zed/pull/36681 we already added
support for opening a multibuffer with edits, but vtsls has a different
flow for renames.
Release Notes:
- Files with updated imports now open in a multibuffer when renaming or
moving TypeScript or JavaScript files
Closes#43722
Release Notes:
- Fixed an issue where auto-indentation didn’t work correctly for Python
code blocks in Markdown.
---------
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
Fixes the hang introduced in #44995 (which was reverted in #45011) and
re-enables the optimization.
## Background
PR #44995 introduced an optimization to skip rendering lines that are
clipped by parent containers (e.g., when a large AutoHeight editor is
inside a scrollable List). This significantly improved performance for
large diffs in the Agent Panel.
However, #45011 reverted this change because it caused the main thread
to hang for 100+ seconds in certain scenarios, requiring a force quit to
recover.
## Root Cause
The original analysis in #45011 suggested that visible_bounds wasn’t
being intersected properly, but that was incorrect—the intersection via
with_content_mask works correctly. The actual bug: when an editor is
positioned above the visible viewport (e.g., scrolled past in a List),
the clipping calculation produces a start_row that exceeds max_row:
1. Editor’s bounds.origin.y becomes very negative (e.g., -10000px)
2. After intersection, visible_bounds.origin.y is at the viewport top
(e.g., 0)
3. clipped_top_in_lines = (0 - (-10000)) / line_height = huge number
4. start_row = huge number, but end_row is clamped to max_row
5. This creates an invalid range where start_row > end_row
This caused two different failures depending on build mode:
- Debug mode: Panic from subtraction overflow in
Range<DisplayRow>::len()
- Release mode: Integer wraparound causing blocks_in_range to enter an
infinite loop (the 100+ second hang)
## Fix
Simply clamp start_row to max_row, ensuring the row range is always
valid:
```rs
let start_row = cmp::min(
DisplayRow((scroll_position.y + clipped_top_in_lines).floor() as u32),
max_row,
);
```
## Testing
Added a regression test that draws an editor at y=-10000 to simulate an
editor that’s been scrolled past in a List. This would panic in debug
mode (and hang in release mode) before the fix.
Release Notes:
- Improved agent panel performance when rendering large diffs.
Follow-up of https://github.com/zed-industries/zed/pull/44887
This fixes remote server builds.
Additionally:
* slightly rewords workspace trust text in the security modal
* eagerly ask for worktree trust on open
Release Notes:
- N/A
Closes https://github.com/zed-industries/zed/issues/12589
Forces Zed to require user permissions before running any basic
potentially dangerous actions: parsing and synchronizing
`.zed/settings.json`, downloading and spawning any language and MCP
servers (includes `prettier` and `copilot` instances) and all
`NodeRuntime` interactions.
There are more we can add later, among the ideas: DAP downloads on
debugger start, Python virtual environment, etc.
By default, Zed starts in restricted mode and shows a `! Restricted
Mode` in the title bar, no aforementioned actions are executed.
Clicking it or calling `workspace::ToggleWorktreeSecurity` command will
bring a modal to trust worktrees or dismiss the modal:
<img width="1341" height="475" alt="1"
src="https://github.com/user-attachments/assets/4fabe63a-6494-42c7-b0ea-606abb1c0c20"
/>
Agent Panel shows a message too:
<img width="644" height="106" alt="2"
src="https://github.com/user-attachments/assets/0a4554bc-1f1e-455b-b97d-244d7d6a3259"
/>
This works on local, SSH and WSL remote projects, trusted worktrees are
persisted between Zed restarts.
There's a way to clear all persisted trust with
`workspace::ClearTrustedWorktrees`, this will restart Zed.
This mechanism can be turned off with settings:
```jsonc
"session": {
"trust_all_worktrees": true
}
```
in this mode, all worktrees will be trusted by default, allowing all
actions, but no auto trust will be persisted: hence, when the setting is
changed back, auto trusted worktrees will require another trust
confirmation.
This settings switch was added to the onboarding view also.
Release Notes:
- Introduced worktree trust mechanism, can be turned off with
`"session": { "trust_all_worktrees": true }`
---------
Co-authored-by: Matt Miller <mattrx@gmail.com>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: John D. Swanson <swanson.john.d@gmail.com>
This reverts commit f576ec7a15 (#44995).
The optimization introduced a regression that causes the main thread to
hang for **100+ seconds** in certain scenarios, requiring a force quit
to recover.
## Analysis from spindump
When a large `AutoHeight` editor is displayed inside a `List` (e.g.,
Agent Panel thread view), the clipping calculation can produce invalid
row ranges:
1. `visible_bounds` from `window.content_mask().bounds` represents the
window's content mask, not the intersection with the editor
2. When the editor is partially scrolled out of view,
`clipped_top_in_lines` becomes extremely large
3. This causes `start_row` to be computed as an astronomically high
value
4. `blocks_in_range(start_row..end_row)` then spends excessive time in
`Cursor::search_forward` iterating through the block tree
The spindump showed **~46% of samples** (459/1001 over 10+ seconds)
stuck in `BlockSnapshot::blocks_in_range()`, specifically in cursor
iteration.
### Heaviest stack trace
```
EditorElement::prepaint
└─ blocks_in_range + 236
└─ Cursor::search_forward (459 samples)
```
## Symptoms
- Main thread unresponsive for 33-113 seconds before sampling even began
- UI completely frozen
- High CPU usage on main thread (10+ seconds of CPU time in the sample)
- Force quit required to recover
## Path forward
The original optimization goal (reducing line layout work for clipped
editors) is valid, but the implementation needs to:
1. Correctly calculate the **intersection** of editor bounds with the
visible viewport
2. Ensure row calculations stay within valid ranges (clamped to
`max_row`)
3. Handle edge cases where the editor is completely outside the visible
bounds
Release Notes:
- Fixed a hang that could occur when viewing large diffs in the Agent
Panel
Fixes#44997
## Summary
Optimizes editor rendering when an editor is partially clipped by a
parent container (e.g., a `List`). The editor now only lays out and
renders lines that are actually visible within the viewport, rather than
all lines in the document.
## Problem
When an `AutoHeight` editor with thousands of lines is placed inside a
scrollable `List` (such as in the Agent Panel thread view), the editor
would lay out **all** lines during prepaint, even though only a small
portion was visible. Profiling showed that ~50% of frame time was spent
in `EditorElement::prepaint` → `LineWithInvisibles::from_chunks`,
processing thousands of invisible lines.
## Solution
Calculate the intersection of the editor's bounds with the current
content mask (which represents the visible viewport after all parent
clipping). Use this to determine:
1. `clipped_top_in_lines` - how many lines are clipped above the
viewport
2. `visible_height_in_lines` - how many lines are actually visible
Then adjust `start_row` and `end_row` to only include visible lines. The
parent container handles positioning, so `scroll_position` remains
unchanged for paint calculations.
## Example
For a 3000-line editor where only 50 lines are visible:
- **Before**: Lay out and render 3000 lines
- **After**: Lay out and render ~50 lines
## Testing
Verified the following scenarios work correctly:
- Editor fully visible (no clipping)
- Editor clipped from top
- Editor clipped from bottom
- Editor completely outside viewport (renders nothing)
- Fractional line clipping at boundaries
- Scrollable editors with internal scroll state inside a clipped
container
Release Notes:
- Improved agent panel performance when rendering large diffs.
Closes#44306
This PR makes two changes:
- Uses the new `grid_cols_min_content` API. See more here:
https://github.com/zed-industries/zed/pull/44973.
- Changes Markdown table rendering to use a single grid instead of
creating a new grid per row, so column widths stay consistent across
rows.
Release Notes:
- Fixed an issue where Markdown tables wouldn't render in the hover
popover.
Hi,
This PR fixes nothing. I just miss the option to open recent projects
quickly upon opening Zed, so I made this. Hope I can see it soon in
Preview channel.
If there is any suggestion, just comment. I will take it seriously.
Thank you!
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|empty pane|<img width="1571" height="941" alt="Screenshot 2025-12-03 at
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src="https://github.com/user-attachments/assets/753cbbc5-ddca-4143-aed8-0832ca59b8e7"
/>|<img width="1604" height="952" alt="Screenshot 2025-12-03 at 12 34
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src="https://github.com/user-attachments/assets/2f591d48-ef86-4886-a220-0f78a0bcad92"
/>|
|new window|<img width="1571" height="941" alt="Screenshot 2025-12-03 at
12 39 21"
src="https://github.com/user-attachments/assets/a3a1b110-a278-4f8b-980e-75f5bc96b609"
/>|<img width="1604" height="952" alt="Screenshot 2025-12-04 at 10 43
17"
src="https://github.com/user-attachments/assets/74a00d91-50da-41a2-8fc2-24511d548063"
/>|
---
Release Notes:
- Added a new value to the `restore_on_startup` setting called
`launchpad`. This value makes Zed open with a variant of the welcome
screen ("the launchpad") upon startup. Additionally, this same page
variant is now also what is displayed if you close all tabs in an
existing window that doesn't contain any folders open. The launchpad
page shows you up to 5 recent projects, making it easy to open something
you were working recently.
---------
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
- **Fix editor::OpenUrl on zed links**
- **Fix cmd-clicking links too**
Closes#44293Closes#43833
Release Notes:
- The `editor::OpenUrl` action now works for links to https://zed.dev
- Clicking on a link to a Zed channel or channel-note within the editor
no-longer redirects you via the web.
---------
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
Dino