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LibWeb: Implement adoptedStyleSheets attribute for Document

Browse source 
https://drafts.csswg.org/cssom/#dom-documentorshadowroot-adoptedstylesheets

The attribute implementation for ShadowRoot is currently missing
because we do not yet distinguish between the style sheets of
ShadowRoot and Document, and we need to address the issue first.
This commit is contained in:
Aliaksandr Kalenik 2024-03-07 23:36:52 +01:00 • committed by Andreas Kling
parent fceba6a257
commit 7c322ec710
6 changed files with 171 additions and 2 deletions
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11
Tests/LibWeb/Text/expected/document-adopted-style-sheets.txt Normal file
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color with no adopted style sheets: rgb(0, 0, 0)
document.adoptedStyleSheets.length=(1)
add style sheet using Array.prototype.push(): rgb(255, 0, 0)
document.adoptedStyleSheets.length=(0)
delete added style sheet using Array.prototype.pop(): rgb(0, 0, 0)
document.adoptedStyleSheets.length=(1)
add style by assigning array to document.adoptedStyleSheets: rgb(255, 0, 0)
document.adoptedStyleSheets.length=(1)
add style by assigning Set to document.adoptedStyleSheets: rgb(0, 128, 0)
assignment of non-iterable value to document.adoptedStyleSheets throws "1 is not iterable"
assignment of value that is not CSSStyleSheet throws "Not an object of type CSSStyleSheet"