bjoernager/rust
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rustdoc: use CSS overscroll-behavior instead of JavaScript

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Fixes the desktop scrolling weirdness mentioned in
https://github.com/rust-lang/rust/pull/98775#issuecomment-1182575603

As described in the MDN page for this property:

* The current Firefox ESR is 102, and the first Firefox version
  to support this feature is 59.
* The current Chrome version 112, and the first version to support
  this is 63.
* Edge is described as having a minor bug in `none` mode, but we
  use `contain` mode anyway, so it doesn't matter.
* Safari 16, released September 2022, is the last browser to
  add this feature, and is also the oldest version we officially
  support.
This commit is contained in:
Michael Howell 2023-04-10 16:15:51 -07:00
parent 661b33f524
commit bb7ed64f45
5 changed files with 19 additions and 96 deletions
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12
tests/rustdoc-gui/sidebar-source-code-display.goml
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@ -183,22 +183,12 @@ wait-for-css: (".sidebar", {"left": "-1000px"})
// The "scrollTop" property should be the same.
assert-window-property: {"pageYOffset": "2542"}
// We now check that the scroll position is restored if the window is resized.
set-window-size: (500, 700)
click: "#src-sidebar-toggle"
wait-for-css: ("#source-sidebar", {"visibility": "visible"})
assert-window-property: {"pageYOffset": "0"}
set-window-size: (900, 900)
assert-window-property: {"pageYOffset": "2542"}
set-window-size: (500, 700)
click: "#src-sidebar-toggle"
wait-for-css: ("#source-sidebar", {"visibility": "hidden"})
// We now check that opening the sidebar and clicking a link will close it.
// The behavior here on mobile is different than the behavior on desktop,
// but common sense dictates that if you have a list of files that fills the entire screen, and
// you click one of them, you probably want to actually see the file's contents, and not just
// make it the current selection.
set-window-size: (500, 700)
click: "#src-sidebar-toggle"
wait-for-css: ("#source-sidebar", {"visibility": "visible"})
assert-local-storage: {"rustdoc-source-sidebar-show": "true"}