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ladybird/Libraries/LibWeb/CSS/CSSConditionRule.h

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LibWeb: Add CSSConditionRule https://www.w3.org/TR/css-conditional-3/#the-cssconditionrule-interface This simply exposes a condition string, which is implemented differently in each sub-class.
2021-09-28 16:53:15 +01:00
/*
LibWeb/CSS: Replace style-rule iteration methods with a generic one I didn't want to add another set of boilerplatey tree-walking methods, so here's a general-purpose one. :^) `for_each_effective_rule()` walks the tree of effective style rules, and runs the callback on each one, in either pre- or postorder. The previous `for_each_effective_style/keyframes_rule()` methods of `CSSStyleSheet` are then reimplemented in terms of `for_each_effective_rule()`, and we can get rid of their equivalents elsewhere.
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* Copyright (c) 2021-2024, Sam Atkins <sam@ladybird.org>
LibWeb: Add CSSConditionRule https://www.w3.org/TR/css-conditional-3/#the-cssconditionrule-interface This simply exposes a condition string, which is implemented differently in each sub-class.
2021-09-28 16:53:15 +01:00
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullRefPtr.h>
#include <LibWeb/CSS/CSSGroupingRule.h>
#include <LibWeb/Forward.h>
namespace Web::CSS {
class CSSConditionRule : public CSSGroupingRule {
LibWeb+LibJS: Make the EventTarget hierarchy (incl. DOM) GC-allocated This is a monster patch that turns all EventTargets into GC-allocated PlatformObjects. Their C++ wrapper classes are removed, and the LibJS garbage collector is now responsible for their lifetimes. There's a fair amount of hacks and band-aids in this patch, and we'll have a lot of cleanup to do after this.
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WEB_PLATFORM_OBJECT(CSSConditionRule, CSSGroupingRule);
LibWeb: Add CSSConditionRule https://www.w3.org/TR/css-conditional-3/#the-cssconditionrule-interface This simply exposes a condition string, which is implemented differently in each sub-class.
2021-09-28 16:53:15 +01:00
public:
LibWeb: Add CSSConditionRule wrapper
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virtual ~CSSConditionRule() = default;
LibWeb: Add CSSConditionRule https://www.w3.org/TR/css-conditional-3/#the-cssconditionrule-interface This simply exposes a condition string, which is implemented differently in each sub-class.
2021-09-28 16:53:15 +01:00
LibWeb: Port CSSConditionRule interface from DeprecatedString to String
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virtual String condition_text() const = 0;
LibWeb: Make style-rule iteration aware of CSSMediaRule The logic is handled by `CSSGroupingRule` and `CSSConditionRule`, so `CSSMediaRule` only has to report if its condition matches. Right now, that condition is always false because we do not evaluate the media query.
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virtual bool condition_matches() const = 0;
LibWeb/CSS: Replace style-rule iteration methods with a generic one I didn't want to add another set of boilerplatey tree-walking methods, so here's a general-purpose one. :^) `for_each_effective_rule()` walks the tree of effective style rules, and runs the callback on each one, in either pre- or postorder. The previous `for_each_effective_style/keyframes_rule()` methods of `CSSStyleSheet` are then reimplemented in terms of `for_each_effective_rule()`, and we can get rid of their equivalents elsewhere.
2024-09-03 11:43:20 +01:00
virtual void for_each_effective_rule(TraversalOrder, Function<void(CSSRule const&)> const& callback) const override;
LibWeb: Add CSSConditionRule https://www.w3.org/TR/css-conditional-3/#the-cssconditionrule-interface This simply exposes a condition string, which is implemented differently in each sub-class.
2021-09-28 16:53:15 +01:00
protected:
LibWeb: Make `CSSRule::type()` non-virtual All its overrides return constants, and without virtual dispatch the `qualified_layer_name` and `absolutized_selectors` functions can benefit from slightly better optimizations. `CSSRule`s aren't allocated that often, so the memory impact is minimal.
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CSSConditionRule(JS::Realm&, CSSRuleList&, Type);
LibWeb: Move setting of Web object prototypes to initialize() This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
2023-01-10 06:28:20 -05:00
LibJS: Make Cell::initialize() return void Stop worrying about tiny OOMs. Work towards #20405
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virtual void initialize(JS::Realm&) override;
LibWeb: Add CSSConditionRule https://www.w3.org/TR/css-conditional-3/#the-cssconditionrule-interface This simply exposes a condition string, which is implemented differently in each sub-class.
2021-09-28 16:53:15 +01:00
};
}
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