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LibWeb: Use [Reflect] to implement HTMLImageElement.decoding

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This ensures the correct behavior when the value of the `decoding`
attribute is changed with `setAttribute()`.
This commit is contained in:
Tim Ledbetter 2024-11-26 18:27:11 +00:00 • committed by Tim Ledbetter
commit e176871fdf
Notes: github-actions[bot] 2024-11-26 21:57:24 +00:00
4 changed files with 15 additions and 40 deletions
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1
Libraries/LibWeb/HTML/AttributeNames.h
View file

@ -60,6 +60,7 @@ namespace AttributeNames {
__ENUMERATE_HTML_ATTRIBUTE(data) \
__ENUMERATE_HTML_ATTRIBUTE(datetime) \
__ENUMERATE_HTML_ATTRIBUTE(declare) \
__ENUMERATE_HTML_ATTRIBUTE(decoding) \
__ENUMERATE_HTML_ATTRIBUTE(default_) \
__ENUMERATE_HTML_ATTRIBUTE(defaultchecked) \
__ENUMERATE_HTML_ATTRIBUTE(defaultselected) \

31
Libraries/LibWeb/HTML/HTMLImageElement.cpp
View file

@ -127,6 +127,11 @@ void HTMLImageElement::form_associated_element_attribute_changed(FlyString const
if (layout_node())
did_update_alt_text(verify_cast<Layout::ImageBox>(*layout_node()));
}
if (name == HTML::AttributeNames::decoding) {
if (value.has_value() && (value->equals_ignoring_ascii_case("sync"sv) || value->equals_ignoring_ascii_case("async"sv)))
dbgln("FIXME: HTMLImageElement.decoding = '{}' is not implemented yet", value->to_ascii_lowercase());
}
}
GC::Ptr<Layout::Node> HTMLImageElement::create_layout_node(CSS::StyleProperties style)
@ -1171,32 +1176,6 @@ void HTMLImageElement::animate()
paintable()->set_needs_display();
}
StringView HTMLImageElement::decoding() const
{
switch (m_decoding_hint) {
case ImageDecodingHint::Sync:
return "sync"sv;
case ImageDecodingHint::Async:
return "async"sv;
case ImageDecodingHint::Auto:
return "auto"sv;
default:
VERIFY_NOT_REACHED();
}
}
void HTMLImageElement::set_decoding(String decoding)
{
if (decoding == "sync"sv) {
dbgln("FIXME: HTMLImageElement.decoding = 'sync' is not implemented yet");
m_decoding_hint = ImageDecodingHint::Sync;
} else if (decoding == "async"sv) {
dbgln("FIXME: HTMLImageElement.decoding = 'async' is not implemented yet");
m_decoding_hint = ImageDecodingHint::Async;
} else
m_decoding_hint = ImageDecodingHint::Auto;
}
bool HTMLImageElement::allows_auto_sizes() const
{
// An img element allows auto-sizes if:

13
Libraries/LibWeb/HTML/HTMLImageElement.h
View file

@ -87,10 +87,6 @@ public:
// https://html.spec.whatwg.org/multipage/images.html#select-an-image-source
[[nodiscard]] Optional<ImageSourceAndPixelDensity> select_an_image_source();
StringView decoding() const;
void set_decoding(String);
void set_source_set(SourceSet);
ImageRequest& current_request() { return *m_current_request; }
@ -162,15 +158,6 @@ private:
SourceSet m_source_set;
CSSPixelSize m_last_seen_viewport_size;
// https://html.spec.whatwg.org/multipage/images.html#image-decoding-hint
enum class ImageDecodingHint {
Auto,
Sync,
Async
};
ImageDecodingHint m_decoding_hint = ImageDecodingHint::Auto;
};
}

10
Libraries/LibWeb/HTML/HTMLImageElement.idl
View file

@ -2,6 +2,14 @@
#import <HTML/HTMLElement.idl>
#import <HTML/Scripting/Fetching.idl>
// https://html.spec.whatwg.org/multipage/images.html#image-decoding-hint
[MissingValueDefault=auto, InvalidValueDefault=auto]
enum Decoding {
"sync",
"async",
"auto"
};
// https://html.spec.whatwg.org/multipage/embedded-content.html#htmlimageelement
[Exposed=Window, LegacyFactoryFunction=Image(optional unsigned long width, optional unsigned long height)]
interface HTMLImageElement : HTMLElement {
@ -22,7 +30,7 @@ interface HTMLImageElement : HTMLElement {
readonly attribute boolean complete;
readonly attribute USVString currentSrc;
[CEReactions, Reflect=referrerpolicy, Enumerated=ReferrerPolicy] attribute DOMString referrerPolicy;
[CEReactions] attribute DOMString decoding;
[CEReactions, Enumerated=Decoding, Reflect] attribute DOMString decoding;
[CEReactions, Enumerated=LazyLoadingAttribute, Reflect] attribute DOMString loading;
[CEReactions, Enumerated=FetchPriorityAttribute, Reflect=fetchpriority] attribute DOMString fetchPriority;