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LibWeb: Add KeyframeEffect IDL objects
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169
Userland/Libraries/LibWeb/Animations/KeyframeEffect.cpp
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169
Userland/Libraries/LibWeb/Animations/KeyframeEffect.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 <LibWeb/Animations/KeyframeEffect.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::Animations {
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JS::NonnullGCPtr<KeyframeEffect> KeyframeEffect::create(JS::Realm& realm)
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{
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return realm.heap().allocate<KeyframeEffect>(realm, realm);
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}
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// https://www.w3.org/TR/web-animations-1/#dom-keyframeeffect-keyframeeffect
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WebIDL::ExceptionOr<JS::NonnullGCPtr<KeyframeEffect>> KeyframeEffect::construct_impl(
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JS::Realm& realm,
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JS::Handle<DOM::Element> const& target,
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JS::Handle<JS::Object> const& keyframes,
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Variant<double, KeyframeEffectOptions> options)
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{
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auto& vm = realm.vm();
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// 1. Create a new KeyframeEffect object, effect.
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auto effect = vm.heap().allocate<KeyframeEffect>(realm, realm);
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// 2. Set the target element of effect to target.
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effect->set_target(target);
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// 3. Set the target pseudo-selector to the result corresponding to the first matching condition from below.
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// If options is a KeyframeEffectOptions object with a pseudoElement property,
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if (options.has<KeyframeEffectOptions>()) {
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// Set the target pseudo-selector to the value of the pseudoElement property.
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//
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// When assigning this property, the error-handling defined for the pseudoElement setter on the interface is
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// applied. If the setter requires an exception to be thrown, this procedure must throw the same exception and
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// abort all further steps.
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effect->set_pseudo_element(options.get<KeyframeEffectOptions>().pseudo_element);
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}
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// Otherwise,
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else {
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// Set the target pseudo-selector to null.
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// Note: This is the default when constructed
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}
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// 4. Let timing input be the result corresponding to the first matching condition from below.
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EffectTiming timing_input;
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// If options is a KeyframeEffectOptions object,
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if (options.has<KeyframeEffectOptions>()) {
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// Let timing input be options.
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timing_input = options.get<KeyframeEffectOptions>();
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}
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// Otherwise (if options is a double),
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else {
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// Let timing input be a new EffectTiming object with all members set to their default values and duration set
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// to options.
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timing_input = { .duration = options.get<double>() };
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}
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// 5. Call the procedure to update the timing properties of an animation effect of effect from timing input.
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// If that procedure causes an exception to be thrown, propagate the exception and abort this procedure.
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TRY(effect->update_timing(timing_input.to_optional_effect_timing()));
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// 6. If options is a KeyframeEffectOptions object, assign the composite property of effect to the corresponding
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// value from options.
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//
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// When assigning this property, the error-handling defined for the corresponding setter on the KeyframeEffect
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// interface is applied. If the setter requires an exception to be thrown for the value specified by options,
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// this procedure must throw the same exception and abort all further steps.
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if (options.has<KeyframeEffectOptions>())
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effect->set_composite(options.get<KeyframeEffectOptions>().composite);
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// 7. Initialize the set of keyframes by performing the procedure defined for setKeyframes() passing keyframes as
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// the input.
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TRY(effect->set_keyframes(keyframes));
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return effect;
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}
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WebIDL::ExceptionOr<JS::NonnullGCPtr<KeyframeEffect>> KeyframeEffect::construct_impl(JS::Realm& realm, JS::NonnullGCPtr<KeyframeEffect> source)
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{
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auto& vm = realm.vm();
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// 1. Create a new KeyframeEffect object, effect.
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auto effect = vm.heap().allocate<KeyframeEffect>(realm, realm);
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// 2. Set the following properties of effect using the corresponding values of source:
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// - effect target,
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effect->m_target_element = source->target();
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// FIXME:
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// - keyframes,
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// - composite operation, and
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effect->set_composite(source->composite());
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// - all specified timing properties:
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// - start delay,
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effect->m_start_delay = source->m_start_delay;
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// - end delay,
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effect->m_end_delay = source->m_end_delay;
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// - fill mode,
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effect->m_fill_mode = source->m_fill_mode;
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// - iteration start,
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effect->m_iteration_start = source->m_iteration_start;
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// - iteration count,
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effect->m_iteration_count = source->m_iteration_count;
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// - iteration duration,
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effect->m_iteration_duration = source->m_iteration_duration;
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// - playback direction, and
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effect->m_playback_direction = source->m_playback_direction;
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// - timing function.
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effect->m_easing_function = source->m_easing_function;
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return effect;
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}
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void KeyframeEffect::set_pseudo_element(Optional<String> pseudo_element)
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{
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// FIXME: Implement this
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(void)pseudo_element;
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}
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// https://www.w3.org/TR/web-animations-1/#dom-keyframeeffect-getkeyframes
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WebIDL::ExceptionOr<Vector<JS::Object*>> KeyframeEffect::get_keyframes() const
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{
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// FIXME: Implement this
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return Vector<JS::Object*> {};
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}
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// https://www.w3.org/TR/web-animations-1/#dom-keyframeeffect-setkeyframes
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WebIDL::ExceptionOr<void> KeyframeEffect::set_keyframes(JS::Object* keyframe_object)
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{
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// FIXME: Implement this
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(void)keyframe_object;
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return {};
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}
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KeyframeEffect::KeyframeEffect(JS::Realm& realm)
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: AnimationEffect(realm)
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{
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}
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void KeyframeEffect::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::KeyframeEffectPrototype>(realm, "KeyframeEffect"));
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}
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void KeyframeEffect::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_target_element);
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}
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}
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