[Webkit-unassigned] [Bug 250334] New: REGRESSION(258522 at main): Ensure the slider style is applied to an <input> element before drawing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=250334

            Bug ID: 250334
           Summary: REGRESSION(258522 at main): Ensure the slider style is
                    applied to an <input> element before drawing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

The appearance style can be applied to any non <input> element like this this one:

<style>
  html {
    appearance: slider-vertical;
  }
</style>

In 258522 at main createSliderTrackPartForRenderer() was refactored from RenderTheme::paintSliderTicks() which makes an early return "if (!is<HTMLInputElement>(o.node()))". We need to port this check to createSliderTrackPartForRenderer().

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