ladybird/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.h
Ali Mohammad Pur e90752cc21 LibWeb: Add preliminary support for CSS animations
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>
2023-05-29 05:35:41 +02:00

44 lines
1.3 KiB
C++

/*
* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <AK/NonnullRefPtr.h>
#include <LibWeb/CSS/CSSRule.h>
#include <LibWeb/CSS/CSSRuleList.h>
#include <LibWeb/Forward.h>
namespace Web::CSS {
class CSSGroupingRule : public CSSRule {
WEB_PLATFORM_OBJECT(CSSGroupingRule, CSSRule);
public:
virtual ~CSSGroupingRule() = default;
CSSRuleList const& css_rules() const { return m_rules; }
CSSRuleList& css_rules() { return m_rules; }
CSSRuleList* css_rules_for_bindings() { return m_rules; }
WebIDL::ExceptionOr<u32> insert_rule(StringView rule, u32 index = 0);
WebIDL::ExceptionOr<void> delete_rule(u32 index);
virtual void for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const;
virtual void for_each_effective_keyframes_at_rule(Function<void(CSSKeyframesRule const&)> const& callback) const;
virtual void set_parent_style_sheet(CSSStyleSheet*) override;
protected:
CSSGroupingRule(JS::Realm&, CSSRuleList&);
virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
private:
JS::NonnullGCPtr<CSSRuleList> m_rules;
};
}