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https://github.com/LadybirdBrowser/ladybird
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5adfd1c43a
Previously we were inconsistent by generating code for enum definitions but not generating code for dictionaries. With future changes to the IDL generator to expose helpers to convert to and from IDL values this produced circular depdendencies. To solve this problem, also generate the dictionary definitions in bindings headers.
94 lines
4.2 KiB
C++
94 lines
4.2 KiB
C++
/*
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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 <LibGC/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/Bindings/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/HighResolutionTime/Performance.h>
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#include <LibWeb/HighResolutionTime/TimeOrigin.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::Animations {
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GC_DEFINE_ALLOCATOR(DocumentTimeline);
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GC::Ref<DocumentTimeline> DocumentTimeline::create(JS::Realm& realm, DOM::Document& document, HighResolutionTime::DOMHighResTimeStamp origin_time)
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{
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auto timeline = realm.create<DocumentTimeline>(realm, document, origin_time);
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auto current_time = document.last_animation_frame_timestamp();
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if (!current_time.has_value()) {
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// The document hasn't processed an animation frame yet, we use the navigation start time, which is either the time
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// that the previous document started to be unloaded or the creation time of the current document.
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current_time = HighResolutionTime::relative_high_resolution_time(document.load_timing_info().navigation_start_time, realm.global_object());
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}
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timeline->update_current_time(current_time.value());
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return timeline;
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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<GC::Ref<DocumentTimeline>> DocumentTimeline::construct_impl(JS::Realm& realm, Bindings::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 = as<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_origin_relative_time(Optional<TimeValue> 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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// NB: We know the timeline time of a DocumentTimeline is always in milliseconds because it's only ever set from
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// update_current_time()
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VERIFY(timeline_time->type == TimeValue::Type::Milliseconds);
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return timeline_time->value + m_origin_time;
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}
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// https://drafts.csswg.org/web-animations-1/#document-timeline
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void DocumentTimeline::update_current_time(double timestamp)
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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 equal to the current time of the default document timeline when this timeline’s current
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// time was zero, and is thus referred to as the document timeline’s origin time.
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set_current_time(TimeValue { TimeValue::Type::Milliseconds, timestamp - m_origin_time });
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// https://drafts.csswg.org/web-animations-1/#ref-for-active-timeline
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// After a document timeline becomes active, it is monotonically increasing.
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if (!m_is_monotonically_increasing && !is_inactive())
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m_is_monotonically_increasing = true;
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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, document)
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, m_origin_time(origin_time)
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{
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}
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void DocumentTimeline::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(DocumentTimeline);
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Base::initialize(realm);
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}
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}
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