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ladybird/Libraries/LibWeb/CSS/CSSConditionRule.cpp

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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>
Meta: Update my e-mail address everywhere
2024-10-04 13:19:50 +02:00
* Copyright (c) 2022, Andreas Kling <andreas@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
*/
LibWeb: Remove unecessary dependence on Window from CSS classes These classes only needed Window to get at its realm. Pass a realm directly to construct CSS classes.
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#include <LibWeb/Bindings/CSSConditionRulePrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
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.
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#include <LibWeb/CSS/CSSConditionRule.h>
namespace Web::CSS {
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::CSSConditionRule(JS::Realm& realm, CSSRuleList& rules, Type type)
: CSSGroupingRule(realm, rules, type)
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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void CSSConditionRule::for_each_effective_rule(TraversalOrder order, Function<void(Web::CSS::CSSRule const&)> const& callback) const
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.
2021-10-08 17:02:47 +01:00
{
if (condition_matches())
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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CSSGroupingRule::for_each_effective_rule(order, callback);
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>
2023-05-26 23:30:54 +03:30
}
LibJS: Make Cell::initialize() return void Stop worrying about tiny OOMs. Work towards #20405
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void CSSConditionRule::initialize(JS::Realm& realm)
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.
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{
LibJS: Make Cell::initialize() return void Stop worrying about tiny OOMs. Work towards #20405
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Base::initialize(realm);
LibWeb: Avoid FlyString lookups when setting IDL interface prototypes This commit introduces a WEB_SET_PROTOTYPE_FOR_INTERFACE macro that caches the interface name in a local static FlyString. This means that we only pay for FlyString-from-literal lookup once per browser lifetime instead of every time the interface is instantiated.
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WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSConditionRule);
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
}
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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