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Make the parser accept @font-face rules without font-family or src.
Fix #16165. Also, it turns out that the CSSFontFaceRule IDL specified in the css-fonts spec is not web-compatible. Instead browsers implement a .style attribute like in CSSStyleRule: https://github.com/w3c/csswg-drafts/issues/825 This in turn requires preserving data about which descriptors were set or not (distinguishing unset from set to a value that happens to be the initial value), so this commit also makes every field `Option<_>`.
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7 changed files with 169 additions and 168 deletions
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@ -2,16 +2,13 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// https://drafts.csswg.org/css-fonts/#cssfontfacerule
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// https://drafts.csswg.org/css-fonts/#cssfontfacerule is unfortunately not web-compatible:
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// https://github.com/w3c/csswg-drafts/issues/825
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// https://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113/css.html#CSS-CSSFontFaceRule ,
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// plus extended attributes matching CSSStyleRule
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[Exposed=Window]
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interface CSSFontFaceRule : CSSRule {
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// attribute DOMString family;
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// attribute DOMString src;
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// attribute DOMString style;
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// attribute DOMString weight;
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// attribute DOMString stretch;
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// attribute DOMString unicodeRange;
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// attribute DOMString variant;
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// attribute DOMString featureSettings;
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// [SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style;
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};
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