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		e90752cc21
		
	
	
	
	
		
			
			This partially implements CSS-Animations-1 (though there are references to CSS-Animations-2). Current limitations: - Multi-selector keyframes are not supported. - Most animation properties are ignored. - Timing functions are not applied. - Non-absolute values are not interpolated unless the target is also of the same non-absolute type (e.g. 10% -> 25%, but not 10% -> 20px). - The JavaScript interface is left as an exercise for the next poor soul looking at this code. With those said, this commit implements: - Interpolation for most common types - Proper keyframe resolution (including the synthetic from-keyframe containing the initial state) - Properly driven animations, and proper style invalidation Co-Authored-By: Andreas Kling <kling@serenityos.org>
		
			
				
	
	
		
			69 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
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			69 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
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|  * Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #include <LibWeb/Bindings/CSSGroupingRulePrototype.h>
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| #include <LibWeb/Bindings/Intrinsics.h>
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| #include <LibWeb/Bindings/MainThreadVM.h>
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| #include <LibWeb/CSS/CSSGroupingRule.h>
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| #include <LibWeb/CSS/CSSRuleList.h>
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| #include <LibWeb/HTML/Window.h>
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| 
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| namespace Web::CSS {
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| 
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| CSSGroupingRule::CSSGroupingRule(JS::Realm& realm, CSSRuleList& rules)
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|     : CSSRule(realm)
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|     , m_rules(rules)
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| {
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|     for (auto& rule : *m_rules)
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|         rule->set_parent_rule(this);
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| }
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| 
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| JS::ThrowCompletionOr<void> CSSGroupingRule::initialize(JS::Realm& realm)
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| {
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|     MUST_OR_THROW_OOM(Base::initialize(realm));
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|     set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSGroupingRulePrototype>(realm, "CSSGroupingRule"));
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| 
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|     return {};
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| }
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| 
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| void CSSGroupingRule::visit_edges(Cell::Visitor& visitor)
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| {
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|     Base::visit_edges(visitor);
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|     visitor.visit(m_rules);
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| }
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| 
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| WebIDL::ExceptionOr<u32> CSSGroupingRule::insert_rule(StringView rule, u32 index)
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| {
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|     TRY(m_rules->insert_a_css_rule(rule, index));
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|     // NOTE: The spec doesn't say where to set the parent rule, so we'll do it here.
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|     m_rules->item(index)->set_parent_rule(this);
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|     return index;
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| }
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| 
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| WebIDL::ExceptionOr<void> CSSGroupingRule::delete_rule(u32 index)
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| {
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|     return m_rules->remove_a_css_rule(index);
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| }
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| 
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| void CSSGroupingRule::for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const
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| {
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|     m_rules->for_each_effective_style_rule(callback);
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| }
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| 
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| void CSSGroupingRule::for_each_effective_keyframes_at_rule(Function<void(CSSKeyframesRule const&)> const& callback) const
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| {
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|     m_rules->for_each_effective_keyframes_at_rule(callback);
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| }
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| 
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| void CSSGroupingRule::set_parent_style_sheet(CSSStyleSheet* parent_style_sheet)
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| {
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|     CSSRule::set_parent_style_sheet(parent_style_sheet);
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|     for (auto& rule : *m_rules)
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|         rule->set_parent_style_sheet(parent_style_sheet);
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| }
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| 
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| }
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