Oleksandr KholiavkoandAnthony Eid
45ea641c6a
This PR adds spreadsheet-style independently resizable columns (dragging
changes total table width) and fixes scrolling issues in variable list
mode.
**What changed:**
- Adds `ResizableColumnsState` struct for independently resizable
columns (spreadsheet-style)
- Adds `ColumnWidthConfig::Resizable` variant for spreadsheet mode
- Adds `DraggedResizableColumn` drag payload type
- Adds `ResizableHeaderInfo` for double-click-to-reset functionality
- Adds `render_resize_handles_resizable` function for resize handles
rendering
- Adds horizontal scroll handle to `TableInteractionState`
- Adds `.on_drag_move::<DraggedResizableColumn>` handler to Table for
drag resizing
**Bug fixes:**
- Fixed missing vertical scrollbar in variable list mode
- Fixed half-broken scrolling in variable list mode (added
.measure_all() to make scrollbar aware of the height of the table)
- Moved vertical scrollbar to be pinned at the right side of the pane
with table — previously it was attached to the table content and was
pushed off-screen when table content was too wide
**API addition:**
```rust
// New variant added:
pub enum ColumnWidthConfig {
Static { widths: StaticColumnWidths, table_width: Option<DefiniteLength> },
Redistributable { entity: Entity<RedistributableColumnsState>, table_width: Option<DefiniteLength> },
Resizable(Entity<ResizableColumnsState>), // NEW: spreadsheet-style
}
```
**Callers updated:**
- csv_preview: Changed from `ColumnWidthConfig::redistributable()` to
use new resizable mode
- git_graph: Added `resizable_info` parameter
**Context:**
This is part 3 of a 3-PR series improving data table column width
handling:
1. [#51059](https://github.com/zed-industries/zed/pull/51059) - Extract
modules into separate files (mechanical change)
2. [#51120](https://github.com/zed-industries/zed/pull/51120) -
Introduce width config enum for redistributable column widths (API
rework)
3. **This PR**: Add independently resizable columns + fix variable list
scrolling (new feature + bug fixes)
The series builds on previously merged infrastructure:
- [#46341](https://github.com/zed-industries/zed/pull/46341) - Data
table dynamic column support
- [#46190](https://github.com/zed-industries/zed/pull/46190) - Variable
row height mode for data tables
Primary beneficiary: CSV preview feature
([#48207](https://github.com/zed-industries/zed/pull/48207))
This work is based on the [original draft PR
#44344](https://github.com/zed-industries/zed/pull/44344), decomposed
into reviewable pieces.
-----
Self-Review Checklist:
- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
Closes #ISSUE
Release Notes:
- N/A or Added/Fixed/Improved ...
---------
Co-authored-by: Anthony Eid <anthony@zed.dev>
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