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Add support for scrolling via accesskit / kittest (#7286)

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I need to scroll in a snapshot test in my app, and kittest had no
utilities for this. Event::MouseWheel is error prone. This adds support
for some accesskit scroll actions, and uses this in kittest to add
helpers to scroll to a node / scroll the scroll area surrounding a node.

The accesskit code says down/up/left/right `Scrolls by approximately one
screen in a specific direction.`. Unfortunately it's difficult to get
the size of a "screen" (I guess that would be the size of the containing
scroll area)where I implemented the scrolling, so for now I've hardcoded
it to 100px. I think scrolling a fixed amount is still better than not
scrolling at all.

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Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
This commit is contained in:
Lucas Meurer
2025-07-03 12:02:05 +02:00
committed by GitHub
parent 378e22e6ec
commit 6d312cc4c7
7 changed files with 186 additions and 6 deletions
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crates/egui_kittest/tests/snapshots/test_scroll_initial.png Normal file
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