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LibWeb: Don't tolerate unit-less lengths (except 0) in standards mode

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"width: 500" is not a valid CSS property in standards mode and should
be ignored.

To plumb the quirks-mode flag into CSS parsing, this patch adds a new
CSS::ParsingContext object that must be passed to the CSS parser.
Currently it only allows you to check the quirks-mode flag. In the
future it will be a good place to put additional information needed
for things like relative URL resolution, etc.

This narrows <div class=parser> on ACID2 to the correct width. :^)
This commit is contained in:
Andreas Kling 2020-06-28 12:43:22 +02:00
parent c1acf67715
commit 9e642827fc
7 changed files with 221 additions and 112 deletions
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4
Libraries/LibWeb/DOM/Document.cpp
View file

@ -346,7 +346,7 @@ NonnullRefPtrVector<Element> Document::get_elements_by_tag_name(const String& ta
RefPtr<Element> Document::query_selector(const StringView& selector_text)
{
auto selector = parse_selector(selector_text);
auto selector = parse_selector(CSS::ParsingContext(*this), selector_text);
if (!selector.has_value())
return {};
@ -366,7 +366,7 @@ RefPtr<Element> Document::query_selector(const StringView& selector_text)
NonnullRefPtrVector<Element> Document::query_selector_all(const StringView& selector_text)
{
auto selector = parse_selector(selector_text);
auto selector = parse_selector(CSS::ParsingContext(*this), selector_text);
if (!selector.has_value())
return {};

2
Libraries/LibWeb/DOM/HTMLLinkElement.cpp
View file

@ -63,7 +63,7 @@ void HTMLLinkElement::resource_did_load()
dbg() << "HTMLLinkElement: Resource did load, looks good! " << href();
auto sheet = parse_css(resource()->encoded_data());
auto sheet = parse_css(CSS::ParsingContext(document()), resource()->encoded_data());
if (!sheet) {
dbg() << "HTMLLinkElement: Failed to parse stylesheet: " << href();
return;

2
Libraries/LibWeb/DOM/HTMLStyleElement.cpp
View file

@ -48,7 +48,7 @@ void HTMLStyleElement::children_changed()
if (is<Text>(child))
builder.append(to<Text>(child).text_content());
});
m_stylesheet = parse_css(builder.to_string());
m_stylesheet = parse_css(CSS::ParsingContext(document()), builder.to_string());
if (m_stylesheet)
document().style_sheets().add_sheet(*m_stylesheet);
else

3
Libraries/LibWeb/DOM/HTMLTableElement.cpp
View file

@ -42,7 +42,8 @@ void HTMLTableElement::apply_presentational_hints(StyleProperties& style) const
{
for_each_attribute([&](auto& name, auto& value) {
if (name == HTML::AttributeNames::width) {
style.set_property(CSS::PropertyID::Width, parse_css_value(value));
if (auto parsed_value = parse_css_value(CSS::ParsingContext(document()), value))
style.set_property(CSS::PropertyID::Width, parsed_value.release_nonnull());
return;
}
if (name == HTML::AttributeNames::bgcolor) {