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LibWeb: Begin implementing the HTMLInputElement 'image' type state

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This implements enough to represent <input type=image> with its loaded
source image (or fallback to its alt text, if applicable). This does not
implement acquring coordinates from user-activated click events on the
image.
This commit is contained in:
Timothy Flynn 2024-02-18 21:12:14 -05:00 • committed by Andreas Kling
parent 45a47cb32b
commit debb5690ce
7 changed files with 214 additions and 2 deletions
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19
Userland/Libraries/LibWeb/HTML/HTMLInputElement.h
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@ -8,10 +8,12 @@
#pragma once
#include <LibWeb/DOM/DocumentLoadEventDelayer.h>
#include <LibWeb/DOM/Text.h>
#include <LibWeb/FileAPI/FileList.h>
#include <LibWeb/HTML/FormAssociatedElement.h>
#include <LibWeb/HTML/HTMLElement.h>
#include <LibWeb/Layout/ImageProvider.h>
#include <LibWeb/WebIDL/DOMException.h>
namespace Web::HTML {
@ -44,7 +46,8 @@ namespace Web::HTML {
class HTMLInputElement final
: public HTMLElement
, public FormAssociatedElement
, public DOM::EditableTextNodeOwner {
, public DOM::EditableTextNodeOwner
, public Layout::ImageProvider {
WEB_PLATFORM_OBJECT(HTMLInputElement, HTMLElement);
JS_DECLARE_ALLOCATOR(HTMLInputElement);
FORM_ASSOCIATED_ELEMENT(HTMLElement, HTMLInputElement)
@ -186,6 +189,14 @@ private:
// ^DOM::Element
virtual i32 default_tab_index_value() const override;
// ^Layout::ImageProvider
virtual bool is_image_available() const override;
virtual Optional<CSSPixels> intrinsic_width() const override;
virtual Optional<CSSPixels> intrinsic_height() const override;
virtual Optional<CSSPixelFraction> intrinsic_aspect_ratio() const override;
virtual RefPtr<Gfx::ImmutableBitmap> current_image_bitmap(Gfx::IntSize = {}) const override;
virtual void set_visible_in_viewport(bool) override;
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
@ -212,6 +223,7 @@ private:
void set_checked_within_group();
void handle_readonly_attribute(Optional<String> const& value);
WebIDL::ExceptionOr<void> handle_src_attribute(StringView value);
// https://html.spec.whatwg.org/multipage/input.html#value-sanitization-algorithm
String value_sanitization_algorithm(String const&) const;
@ -238,6 +250,11 @@ private:
void update_slider_thumb_element();
JS::GCPtr<DOM::Element> m_slider_thumb;
JS::GCPtr<DecodedImageData> image_data() const;
JS::GCPtr<SharedImageRequest> m_image_request;
Optional<DOM::DocumentLoadEventDelayer> m_load_event_delayer;
// https://html.spec.whatwg.org/multipage/input.html#dom-input-indeterminate
bool m_indeterminate { false };