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LibWeb: Add DocumentTimeline IDL object
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sideshowbarker
2024-07-17 14:36:19 +09:00
Author: https://github.com/mattco98 Commit: https://github.com/SerenityOS/serenity/commit/734076946b Pull-request: https://github.com/SerenityOS/serenity/pull/21801 Reviewed-by: https://github.com/awesomekling ✅
80
Userland/Libraries/LibWeb/Animations/DocumentTimeline.cpp
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80
Userland/Libraries/LibWeb/Animations/DocumentTimeline.cpp
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/*
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* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Heap/Heap.h>
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#include <LibJS/Runtime/Realm.h>
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#include <LibWeb/Animations/DocumentTimeline.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::Animations {
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JS::NonnullGCPtr<DocumentTimeline> DocumentTimeline::create(JS::Realm& realm, DOM::Document& document, HighResolutionTime::DOMHighResTimeStamp origin_time)
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{
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return realm.heap().allocate<DocumentTimeline>(realm, realm, document, origin_time);
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}
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// https://www.w3.org/TR/web-animations-1/#dom-documenttimeline-documenttimeline
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WebIDL::ExceptionOr<JS::NonnullGCPtr<DocumentTimeline>> DocumentTimeline::construct_impl(JS::Realm& realm, DocumentTimelineOptions options)
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{
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// Creates a new DocumentTimeline. The Document with which the timeline is associated is the Document associated
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// with the Window that is the current global object.
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auto& window = verify_cast<HTML::Window>(realm.global_object());
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return create(realm, window.associated_document(), options.origin_time);
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}
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// https://www.w3.org/TR/web-animations-1/#ref-for-timeline-time-to-origin-relative-time
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Optional<double> DocumentTimeline::convert_a_timeline_time_to_an_original_relative_time(Optional<double> timeline_time)
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{
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// To convert a timeline time, timeline time, to an origin-relative time for a document timeline, timeline, return
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// the sum of the timeline time and timeline’s origin time. If timeline is inactive, return an unresolved time
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// value.
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if (is_inactive() || !timeline_time.has_value())
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return {};
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return timeline_time.value() + m_origin_time;
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}
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// https://www.w3.org/TR/web-animations-1/#origin-time
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WebIDL::ExceptionOr<void> DocumentTimeline::set_current_time(Optional<double> current_time)
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{
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// A document timeline is a type of timeline that is associated with a document and whose current time is calculated
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// as a fixed offset from the now timestamp provided each time the update animations and send events procedure is
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// run. This fixed offset is referred to as the document timeline’s origin time.
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if (!current_time.has_value())
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TRY(Base::set_current_time({}));
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else
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TRY(Base::set_current_time(current_time.value() - m_origin_time));
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// After a document timeline becomes active, it is monotonically increasing.
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if (!is_inactive())
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VERIFY(is_monotonically_increasing());
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return {};
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}
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// https://www.w3.org/TR/web-animations-1/#document-timelines
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bool DocumentTimeline::is_inactive() const
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{
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// A document timeline that is associated with a Document which is not an active document is also considered to be
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// inactive.
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return Base::is_inactive() || !associated_document()->is_active();
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}
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DocumentTimeline::DocumentTimeline(JS::Realm& realm, DOM::Document& document, HighResolutionTime::DOMHighResTimeStamp origin_time)
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: AnimationTimeline(realm)
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, m_origin_time(origin_time)
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{
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set_associated_document(document);
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}
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void DocumentTimeline::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::DocumentTimelinePrototype>(realm, "DocumentTimeline"));
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}
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}
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42
Userland/Libraries/LibWeb/Animations/DocumentTimeline.h
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Userland/Libraries/LibWeb/Animations/DocumentTimeline.h
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/*
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* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/Animations/AnimationTimeline.h>
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#include <LibWeb/HighResolutionTime/DOMHighResTimeStamp.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::Animations {
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// https://www.w3.org/TR/web-animations-1/#dictdef-documenttimelineoptions
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struct DocumentTimelineOptions {
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HighResolutionTime::DOMHighResTimeStamp origin_time { 0.0 };
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};
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// https://www.w3.org/TR/web-animations-1/#the-documenttimeline-interface
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class DocumentTimeline : public AnimationTimeline {
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WEB_PLATFORM_OBJECT(DocumentTimeline, AnimationTimeline);
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public:
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static JS::NonnullGCPtr<DocumentTimeline> create(JS::Realm&, DOM::Document&, HighResolutionTime::DOMHighResTimeStamp origin_time);
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<DocumentTimeline>> construct_impl(JS::Realm&, DocumentTimelineOptions options = {});
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virtual WebIDL::ExceptionOr<void> set_current_time(Optional<double> current_time) override;
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virtual bool is_inactive() const override;
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virtual Optional<double> convert_a_timeline_time_to_an_original_relative_time(Optional<double>) override;
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virtual bool can_convert_a_timeline_time_to_an_original_relative_time() const override { return true; }
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private:
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DocumentTimeline(JS::Realm&, DOM::Document&, HighResolutionTime::DOMHighResTimeStamp origin_time);
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virtual void initialize(JS::Realm&) override;
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HighResolutionTime::DOMHighResTimeStamp m_origin_time;
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};
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}
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13
Userland/Libraries/LibWeb/Animations/DocumentTimeline.idl
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13
Userland/Libraries/LibWeb/Animations/DocumentTimeline.idl
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#import <Animations/AnimationTimeline.idl>
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#import <HighResolutionTime/DOMHighResTimeStamp.idl>
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// https://www.w3.org/TR/web-animations-1/#dictdef-documenttimelineoptions
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dictionary DocumentTimelineOptions {
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DOMHighResTimeStamp originTime = 0;
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};
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// https://www.w3.org/TR/web-animations-1/#documenttimeline
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[Exposed=Window]
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interface DocumentTimeline : AnimationTimeline {
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constructor(optional DocumentTimelineOptions options = {});
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};
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@ -3,6 +3,7 @@ include(accelerated_graphics)
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set(SOURCES
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Animations/AnimationTimeline.cpp
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Animations/DocumentTimeline.cpp
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ARIA/AriaData.cpp
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ARIA/ARIAMixin.cpp
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ARIA/Roles.cpp
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@ -28,6 +28,7 @@ class RecordingPainter;
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namespace Web::Animations {
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class AnimationTimeline;
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class DocumentTimeline;
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}
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namespace Web::ARIA {
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@ -2,6 +2,7 @@
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# It is defined here so that there is no need to go to the Meta directory when adding new idl files
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libweb_js_bindings(Animations/AnimationTimeline)
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libweb_js_bindings(Animations/DocumentTimeline)
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libweb_js_bindings(Crypto/Crypto)
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libweb_js_bindings(Crypto/SubtleCrypto)
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libweb_js_bindings(CSS/CSSConditionRule)
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