d195116426
# Objective #### Goals * Stop layout updates from overwriting `ScrollPosition`. * Make `ScrollPosition` respect scale factor. * Automatically allocate space for a scrollbar on an axis when `OverflowAxis::Scroll` is set. #### Non-Goals * Overflow-auto support (I was certain Taffy had this already, but apparently I was hallucinating). * Implement any sort of scrollbar widgets. * Stability (not needed because no overflow-auto support). * Maybe in the future we could make a `ScrollbarWidth` enum to more closely match the CSS API with its auto/narrow/none options. For now `scrollbar_width` is just an `f32` which matches Taffy's API. ## Solution * Layout updates no longer overwrite `ScrollPosition`'s value. * Added the field `scrollbar_width: f32` to `Node`. This is sent to `Taffy` which will automatically allocate space for scrollbars with this width in the layout as needed. * Added the fields `scrollbar_width: f32` and `scroll_position: Vec2` to `ComputedNode`. These are updated automatically during layout. * `ScrollPosition` now respects scale factor. * `ScrollPosition` is no longer automatically added to every UI node entity by `ui_layout_system`. If every node needs it, it should just be required by (or be a field on) `Node`. Not sure if that's necessary or not. ## Testing For testing you can look at: * The `scrollbars` example, which should work as before. * The new example `drag_to_scroll`. * The `scroll` example which automatically allocates space for scrollbars on the left hand scrolling list. Did not implement actual scrollbars so you'll just see a gap atm. --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> |
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| migration_guides.md | ||
| README.md | ||
| release_notes_template.md | ||
| release_notes.md | ||
Release Content
This directory contains drafts of documentation for the current development cycle, which will be published to the website during the next release. You can find more information in the release notes and migration guides files.