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LibWeb: Implement counter-[increment,reset,set] properties

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These control the state of CSS counters.

Parsing code for `reversed(counter-name)` is implemented, but disabled
for now until we are able to resolve values for those.
This commit is contained in:
Sam Atkins 2024-07-24 15:47:11 +01:00
commit 017d6c3314
Notes: github-actions[bot] 2024-07-26 10:05:39 +00:00
15 changed files with 315 additions and 5 deletions
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37
Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
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@ -11,6 +11,7 @@
#include <LibWeb/CSS/StyleProperties.h>
#include <LibWeb/CSS/StyleValues/AngleStyleValue.h>
#include <LibWeb/CSS/StyleValues/ContentStyleValue.h>
#include <LibWeb/CSS/StyleValues/CounterDefinitionsStyleValue.h>
#include <LibWeb/CSS/StyleValues/DisplayStyleValue.h>
#include <LibWeb/CSS/StyleValues/GridAutoFlowStyleValue.h>
#include <LibWeb/CSS/StyleValues/GridTemplateAreaStyleValue.h>
@ -1093,6 +1094,42 @@ QuotesData StyleProperties::quotes() const
return InitialValues::quotes();
}
Vector<CounterData> StyleProperties::counter_data(PropertyID property_id) const
{
auto value = property(property_id);
if (value->is_counter_definitions()) {
auto& counter_definitions = value->as_counter_definitions().counter_definitions();
Vector<CounterData> result;
for (auto& counter : counter_definitions) {
CounterData data {
.name = counter.name,
.is_reversed = counter.is_reversed,
.value = {},
};
if (counter.value) {
if (counter.value->is_integer()) {
data.value = AK::clamp_to<i32>(counter.value->as_integer().integer());
} else if (counter.value->is_calculated()) {
auto maybe_int = counter.value->as_calculated().resolve_integer();
if (maybe_int.has_value())
data.value = AK::clamp_to<i32>(*maybe_int);
} else {
dbgln("Unimplemented type for {} integer value: '{}'", string_from_property_id(property_id), counter.value->to_string());
}
}
result.append(move(data));
}
return result;
}
if (value->to_identifier() == ValueID::None)
return {};
dbgln("Unhandled type for {} value: '{}'", string_from_property_id(property_id), value->to_string());
return {};
}
Optional<CSS::ScrollbarWidth> StyleProperties::scrollbar_width() const
{
auto value = property(CSS::PropertyID::ScrollbarWidth);