mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-07-06 09:01:53 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

LibWeb: Bring parse_as_sizes_attribute() up to date with the spec

Browse source 
The following spec algorithms had changed since we implemented them:
- "parse a sizes attribute"
- "update the source set"
- "create a source set"

This commit brings them up to date, as well as adding some additional
logging when parsing the sizes attribute fails in some way.
This commit is contained in:
Sam Atkins 2024-09-11 16:41:18 +01:00 • committed by Andreas Kling
parent 99718653e2
commit 2a0f6fd23e
Notes: github-actions[bot] 2024-09-12 05:40:06 +00:00
5 changed files with 80 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

14
Userland/Libraries/LibWeb/HTML/SourceSet.cpp
View file

@ -339,15 +339,17 @@ descriptor_parser:
}
// https://html.spec.whatwg.org/multipage/images.html#parse-a-sizes-attribute
CSS::LengthOrCalculated parse_a_sizes_attribute(DOM::Document const& document, StringView sizes)
CSS::LengthOrCalculated parse_a_sizes_attribute(DOM::Element const& element, StringView sizes, HTML::HTMLImageElement const* img)
{
auto css_parser = CSS::Parser::Parser::create(CSS::Parser::ParsingContext { document }, sizes);
return css_parser.parse_as_sizes_attribute();
auto css_parser = CSS::Parser::Parser::create(CSS::Parser::ParsingContext { element.document() }, sizes);
return css_parser.parse_as_sizes_attribute(element, img);
}
// https://html.spec.whatwg.org/multipage/images.html#create-a-source-set
SourceSet SourceSet::create(DOM::Element const& element, String default_source, String srcset, String sizes)
SourceSet SourceSet::create(DOM::Element const& element, String const& default_source, String const& srcset, String const& sizes, HTML::HTMLImageElement const* img)
{
// When asked to create a source set given a string default source, a string srcset, a string sizes, and an element or null img:
// 1. Let source set be an empty source set.
SourceSet source_set;
@ -355,8 +357,8 @@ SourceSet SourceSet::create(DOM::Element const& element, String default_source,
if (!srcset.is_empty())
source_set = parse_a_srcset_attribute(srcset);
// 3. Let source size be the result of parsing sizes.
source_set.m_source_size = parse_a_sizes_attribute(element.document(), sizes);
// 3. Let source size be the result of parsing sizes with img.
source_set.m_source_size = parse_a_sizes_attribute(element, sizes, img);
// 4. If default source is not the empty string and source set does not contain an image source
// with a pixel density descriptor value of 1, and no image source with a width descriptor,