279 commits

Author	SHA1	Message	Date
Sam Atkins	d9aeffa302	LibWeb/CSS: Adjust grammar definitions ... Corresponds to: e2903b127e 1b4ea44fc8	2025-07-08 10:24:49 +01:00
Callum Law	9ab7c5d08d	LibWeb: Support relative lengths in calc color values ... Gains us ~40 WPT tests.	2025-07-04 13:18:55 +01:00
Callum Law	62d138ebf7	LibWeb: Allow passing a resolution context to CSSStyleValue::to_color ... This will be used for resolving any calculated style values within the various `CSSColorValue` sub-classes. No functionality changes.	2025-07-04 13:18:55 +01:00
Timothy Flynn	62d9a84b8d	AK+Everywhere: Replace custom number parsers with fast_float ... Our floating point number parser was based on the fast_float library: https://github.com/fastfloat/fast_float However, our implementation only supports 8-bit characters. To support UTF-16, we will need to be able to convert char16_t-based strings to numbers as well. This works out-of-the-box with fast_float. We can also use fast_float for integer parsing.	2025-07-03 09:51:56 -04:00
Tim Ledbetter	923deb0c01	LibWeb: Parse border-image shorthand property	2025-07-03 10:19:44 +01:00
Tim Ledbetter	245905b833	LibWeb: Parse the border-image-slice property	2025-07-03 10:19:44 +01:00
Tim Ledbetter	af60e36122	LibWeb/CSS: Don't remove whitespace early when parsing descriptor values	2025-07-03 08:22:30 +01:00
Tim Ledbetter	78b6032940	LibWeb: Validate operator count when parsing a calculation ... Previously, we would allow calc values such as `calc(min(1 2))`, which would be simplified to `calc(3)` because we assumed that numbers not separated by an operator represented a sum. We now validate that the number of operators we see is as we would expect before collecting these values into a sum node.	2025-07-02 10:12:58 +01:00
Gingeh	b8f78e3bc1	LibWeb: Don't crash with invalid transform-origin values	2025-07-01 14:19:10 +01:00
Tim Ledbetter	ac25f47e8f	LibWeb/SVG: Disallow negative stroke-dasharray values	2025-06-27 23:00:13 +02:00
Aliaksandr Kalenik	594194eb60	LibWeb: Skip serialization of implicit grid lines created during layout ... StyleValues created for grid-template-rows and grid-template-columns by GFC should not include `-start`/`-end` lines implicitly created by grid areas.	2025-06-25 20:45:48 +02:00
Tim Ledbetter	7a6e4f5ec8	LibWeb: Treat a CSS declaration with a "--" property name as invalid	2025-06-25 17:09:29 +01:00
Tim Ledbetter	b00e57139f	LibWeb/CSS: Treat block at-rules with no block as invalid	2025-06-25 09:02:45 +02:00
Aliaksandr Kalenik	8d6f2390f6	LibWeb: Set grid-auto-* to initial values when parsing grid-template ... ...as `grid` property value.	2025-06-24 19:14:08 +02:00
Callum Law	6584ae0080	LibWeb: Treat CSS selectors containing undeclared namespaces as invalid ... Selectors containing undeclared namespaces should be considered invalid, not just not matching any elements. Gains us 3 new WPT passes.	2025-06-24 12:51:12 +01:00
Callum Law	5fcf3d0b05	LibWeb: Combine shared stylesheet parsing functionality ... No functionality changes	2025-06-24 12:51:12 +01:00
Tim Ledbetter	9b6da84fff	LibWeb/CSS: Implement the font-kerning property ... This sets whether the kerning information stored on the current font is used.	2025-06-23 13:26:48 +01:00
Callum Law	6144154e4f	LibWeb: Ensure valid placement of @import and @namespace rules ... These rules should appear before all other rules (excluding @layer statements and @charset) with @import appearing first.	2025-06-23 12:52:40 +01:00
Aliaksandr Kalenik	af602b2555	LibWeb: Align CSS Grid properties parsing with the specification ... Reimplements `grid`, `grid-template`, `grid-template-rows`, and `grid-template-columns` in a way that uses a separate function for each grammar rule defined in the specification. This change results in many additional passing tests from the already imported WPT suite. Most of the remaining test failures are related to incorrect serialization of grid properties.	2025-06-21 22:07:08 +02:00
Callum Law	d7036daa89	LibWeb: Disallow trailing tokens in @supports(<declaration>)	2025-06-21 11:49:43 +01:00
Tim Ledbetter	269d5bb40e	LibWeb: Resolve percentages for opacity properties at parse time	2025-06-19 10:27:35 +02:00
Aliaksandr Kalenik	6169e91994	LibWeb: Delete redundant GridFitContent class from track representation ... GridSize already supports the FitContent type, so there is no need to additionally wrap it in a GridFitContent class.	2025-06-18 15:51:10 +01:00
Tim Ledbetter	fa1e02e5d7	LibWeb: Allow calc() values in cubic-bezier() easing functions	2025-06-18 08:57:06 +02:00
Tim Ledbetter	c5a3eaaf45	LibWeb: Allow calc() values in steps() easing functions	2025-06-18 08:57:06 +02:00
Sam Atkins	a263ba78ed	LibWeb/CSS: Add FIXME that color-mix() now takes 1+ colors, not 2 ... Corresponds to 83c7bffe51	2025-06-17 12:38:27 +01:00
Tim Ledbetter	59a2e10a4e	LibWeb: Distinguish between empty block at-rules and statement at-rules	2025-06-17 08:58:00 +01:00
Tim Ledbetter	701fcb9e87	LibWeb: Allow anonymous layer block rule with no declarations	2025-06-17 08:58:00 +01:00
Tim Ledbetter	96d8bed35b	LibWeb/CSS: Serialize contain values in canonical order	2025-06-17 08:17:33 +01:00
Tim Ledbetter	7faeef8d0d	LibWeb: Treat font-variant values with unknown keywords as invalid	2025-06-15 16:44:51 +02:00
Tim Ledbetter	d89a67ffee	LibWeb: Don't serialize omitted box-shadow and text-shadow values	2025-06-15 16:05:12 +02:00
Tim Ledbetter	68d3ddb1a7	LibWeb: Parse the transform-origin z-value	2025-06-15 16:01:54 +02:00
Tim Ledbetter	a8d5758777	LibWeb: Only resolve transform-origin keywords for the computed value ... Previously, we were resolving these keywords at parse time, which gave an incorrect serialization of the specified value.	2025-06-15 16:01:54 +02:00
Tim Ledbetter	a3f6e71e33	LibWeb/CSS: Disallow third argument in 2D scale functions	2025-06-15 15:59:02 +02:00
Tim Ledbetter	39cef6eeb5	LibWeb: Disallow default as a keyframe name	2025-06-14 17:56:10 -04:00
Tim Ledbetter	64728aef6c	LibWeb: Disallow non-ASCII font-language-override values	2025-06-14 16:05:04 -04:00
Tim Ledbetter	c55f281475	LibWeb: Disallow empty font-language-override string values	2025-06-14 16:05:04 -04:00
Tim Ledbetter	028bcd3d67	LibWeb/CSS: Backtrack the parser if a property does not accept a value	2025-06-14 08:22:56 +02:00
Tim Ledbetter	26293114d8	LibWeb/CSS: Treat repeated text-decoration-line values as invalid	2025-06-14 08:19:47 +02:00
Callum Law	d31a58a7d6	LibWeb: Add support for the 'all' CSS property ... The "longhands" array is populated in the code generator to avoid the overhead of manually maintaining the list in Properties.json There is one subtest that still fails in 'cssstyledeclaration-csstext-all-shorthand', this is related to us not maintaining the relative order of CSS declarations for custom vs non-custom properties.	2025-06-12 15:25:35 +01:00
Sam Atkins	00f76ccbf4	LibWeb/CSS: Add alternative src() syntax for URLs ... url() has some limitations because of allowing unquoted URLs as its contents. For example, it can't use `var()`. To get around this, there's an alternative `src()` function which behaves the same as `url()` except that it is parsed as a regular function, which makes `var()` and friends work properly. There's no WPT test for this as far as I can tell, so I added our own.	2025-06-11 16:26:23 +02:00
Callum Law	f53bec3a67	LibWeb: Throw error on insertRule with disallowed @namespace rule ... Resolves a FIXME in `CSSRuleList::insert_a_css_rule`. Gets us a bit closer to passing https://wpt.live/css/cssom/at-namespace.html but that requires more work around parsing of selectors with namespaces (namely disallowing use of undeclared selectors), which I have added a FIXME for.	2025-06-09 11:56:24 +01:00
Sam Atkins	ea101c6336	LibWeb/CSS: Limit string values for font format() to the spec's set ... A couple of differences from before: - Only the fixed set of strings are allowed. Some formats can only be an ident (eg, svg). - We don't allow these foo-variations values in ident form. - The comparison is done case-insensitively. It's unclear if this is more or less correct, but as most things in CSS are insensitive, including idents, it makes sense that these would be too.	2025-06-05 12:10:29 +01:00
Sam Atkins	d611806f18	LibWeb/CSS: Parse and use tech() in @font-face { src }	2025-06-05 12:10:29 +01:00
Tim Ledbetter	e2d0d8e2b9	LibWeb/CSS: Implement the scrollbar-color property ... This allows the user to set the scrollbar thumb and track colors.	2025-06-02 00:17:51 +02:00
Lucien Fiorini	0fcb574041	LibGfx+LibWeb: Turn Gfx::Filter into a SkImageFilter wrapper	2025-06-01 23:22:10 +02:00
Callum Law	94f5a51820	LibWeb: Convert white-space CSS property to shorthand ... This exposed a few bugs which caused the following tests to behave incorrectly: - `tab-size-text-wrap.html`: This previously relied on a bug where we incorrectly treated `white-space: pre` as allowing text wrapping. The fix here is to implement the text-wrap CSS shorthand property. - `execCommand-preserveWhitespace.html`: We don't correctly serialize shorthand properties. This is covered by an existing FIXME in `CSSStyleProperties::serialized()` - `white-space-shorthand.html`: The last 5 subtests here fail as we don't correctly handle shorthand properties in `CSSStyleProperties::remove_property()`. This is covered by an existing FIXME in said function.	2025-05-29 12:04:28 +02:00
Callum Law	9480b1fc5c	LibWeb: Parse and propagate white-space-trim CSS property	2025-05-29 12:04:28 +02:00
Sam Atkins	ea44a1c2c7	LibWeb/CSS: Don't treat "-foo" as vendor-prefixed ... To be vendor-prefixed, an ident has to start with a '-', then have another '-' later. If the ident simply starts with a '-' then that's perfectly fine. Fixes 62 in-tree WPT subtests. :^)	2025-05-23 19:39:23 +01:00
Sam Atkins	f5825ab18c	LibWeb/CSS: Stop erasing font-variant-css2 value in font shorthand ... We don't want to reset the values of `font-variant-*` here, as that will override whatever our parsed font-variant-css2 was, so stop doing that. Also, font-stretch is mentioned in the spec, but it's a legacy name alias for font-width, so we don't need to do anything for it. Gets us 319 WPT passes!	2025-05-23 19:39:23 +01:00
Sam Atkins	d9a8349d8c	LibWeb/CSS: Parse font-variant and font-weight parts of font properly ... These are not the same as parsing their properties, but are limited to a small set of keywords each. The easiest way to handle these is parsing them directly here. Update some comments while I'm here.	2025-05-23 19:39:23 +01:00