mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-07-29 20:29:18 +00:00
Everywhere: Hoist the Libraries folder to the top-level
This commit is contained in:
Timothy Flynn
Andreas Kling
parent
950e819ee7
commit
93712b24bf
Notes:
github-actions[bot]
2024-11-10 11:51:52 +00:00
Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker
4547 changed files with 104 additions and 113 deletions
291
Libraries/LibWeb/CSS/StyleComputer.h
Normal file
291
Libraries/LibWeb/CSS/StyleComputer.h
Normal file
|
|
@ -0,0 +1,291 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2024, Andreas Kling <andreas@ladybird.org>
|
||||
* Copyright (c) 2021-2024, Sam Atkins <sam@ladybird.org>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/HashMap.h>
|
||||
#include <AK/Optional.h>
|
||||
#include <AK/OwnPtr.h>
|
||||
#include <LibGfx/Font/Typeface.h>
|
||||
#include <LibWeb/Animations/KeyframeEffect.h>
|
||||
#include <LibWeb/CSS/CSSFontFaceRule.h>
|
||||
#include <LibWeb/CSS/CSSKeyframesRule.h>
|
||||
#include <LibWeb/CSS/CSSStyleDeclaration.h>
|
||||
#include <LibWeb/CSS/Selector.h>
|
||||
#include <LibWeb/CSS/StyleProperties.h>
|
||||
#include <LibWeb/Forward.h>
|
||||
#include <LibWeb/Loader/ResourceLoader.h>
|
||||
|
||||
namespace Web::CSS {
|
||||
|
||||
// A counting bloom filter with 2 hash functions.
|
||||
// NOTE: If a counter overflows, it's kept maxed-out until the whole filter is cleared.
|
||||
template<typename CounterType, size_t key_bits>
|
||||
class CountingBloomFilter {
|
||||
public:
|
||||
CountingBloomFilter() { }
|
||||
|
||||
void clear() { __builtin_memset(m_buckets, 0, sizeof(m_buckets)); }
|
||||
|
||||
void increment(u32 key)
|
||||
{
|
||||
auto& first = bucket1(key);
|
||||
if (first < NumericLimits<CounterType>::max())
|
||||
++first;
|
||||
auto& second = bucket2(key);
|
||||
if (second < NumericLimits<CounterType>::max())
|
||||
++second;
|
||||
}
|
||||
|
||||
void decrement(u32 key)
|
||||
{
|
||||
auto& first = bucket1(key);
|
||||
if (first < NumericLimits<CounterType>::max())
|
||||
--first;
|
||||
auto& second = bucket2(key);
|
||||
if (second < NumericLimits<CounterType>::max())
|
||||
--second;
|
||||
}
|
||||
|
||||
[[nodiscard]] bool may_contain(u32 hash) const
|
||||
{
|
||||
return bucket1(hash) && bucket2(hash);
|
||||
}
|
||||
|
||||
private:
|
||||
static constexpr u32 bucket_count = 1 << key_bits;
|
||||
static constexpr u32 key_mask = bucket_count - 1;
|
||||
|
||||
[[nodiscard]] u32 hash1(u32 key) const { return key & key_mask; }
|
||||
[[nodiscard]] u32 hash2(u32 key) const { return (key >> 16) & key_mask; }
|
||||
|
||||
[[nodiscard]] CounterType& bucket1(u32 key) { return m_buckets[hash1(key)]; }
|
||||
[[nodiscard]] CounterType& bucket2(u32 key) { return m_buckets[hash2(key)]; }
|
||||
[[nodiscard]] CounterType bucket1(u32 key) const { return m_buckets[hash1(key)]; }
|
||||
[[nodiscard]] CounterType bucket2(u32 key) const { return m_buckets[hash2(key)]; }
|
||||
|
||||
CounterType m_buckets[bucket_count];
|
||||
};
|
||||
|
||||
// https://www.w3.org/TR/css-cascade/#origin
|
||||
enum class CascadeOrigin : u8 {
|
||||
Author,
|
||||
User,
|
||||
UserAgent,
|
||||
Animation,
|
||||
Transition,
|
||||
};
|
||||
|
||||
struct MatchingRule {
|
||||
JS::GCPtr<DOM::ShadowRoot const> shadow_root;
|
||||
JS::GCPtr<CSSRule const> rule; // Either CSSStyleRule or CSSNestedDeclarations
|
||||
JS::GCPtr<CSSStyleSheet const> sheet;
|
||||
size_t style_sheet_index { 0 };
|
||||
size_t rule_index { 0 };
|
||||
size_t selector_index { 0 };
|
||||
|
||||
u32 specificity { 0 };
|
||||
CascadeOrigin cascade_origin;
|
||||
bool contains_pseudo_element { false };
|
||||
bool can_use_fast_matches { false };
|
||||
bool must_be_hovered { false };
|
||||
bool skip { false };
|
||||
|
||||
// Helpers to deal with the fact that `rule` might be a CSSStyleRule or a CSSNestedDeclarations
|
||||
PropertyOwningCSSStyleDeclaration const& declaration() const;
|
||||
SelectorList const& absolutized_selectors() const;
|
||||
FlyString const& qualified_layer_name() const;
|
||||
};
|
||||
|
||||
struct FontFaceKey {
|
||||
FlyString family_name;
|
||||
int weight { 0 };
|
||||
int slope { 0 };
|
||||
|
||||
[[nodiscard]] u32 hash() const { return pair_int_hash(family_name.hash(), pair_int_hash(weight, slope)); }
|
||||
[[nodiscard]] bool operator==(FontFaceKey const&) const = default;
|
||||
};
|
||||
|
||||
class FontLoader;
|
||||
|
||||
class StyleComputer {
|
||||
public:
|
||||
enum class AllowUnresolved {
|
||||
Yes,
|
||||
No,
|
||||
};
|
||||
static void for_each_property_expanding_shorthands(PropertyID, CSSStyleValue const&, AllowUnresolved, Function<void(PropertyID, CSSStyleValue const&)> const& set_longhand_property);
|
||||
static void set_property_expanding_shorthands(StyleProperties&, PropertyID, CSSStyleValue const&, CSS::CSSStyleDeclaration const*, StyleProperties const& style_for_revert, StyleProperties const& style_for_revert_layer, Important = Important::No);
|
||||
static NonnullRefPtr<CSSStyleValue const> get_inherit_value(JS::Realm& initial_value_context_realm, CSS::PropertyID, DOM::Element const*, Optional<CSS::Selector::PseudoElement::Type> = {});
|
||||
|
||||
static Optional<String> user_agent_style_sheet_source(StringView name);
|
||||
|
||||
explicit StyleComputer(DOM::Document&);
|
||||
~StyleComputer();
|
||||
|
||||
DOM::Document& document() { return m_document; }
|
||||
DOM::Document const& document() const { return m_document; }
|
||||
|
||||
void reset_ancestor_filter();
|
||||
void push_ancestor(DOM::Element const&);
|
||||
void pop_ancestor(DOM::Element const&);
|
||||
|
||||
StyleProperties create_document_style() const;
|
||||
|
||||
StyleProperties compute_style(DOM::Element&, Optional<CSS::Selector::PseudoElement::Type> = {}) const;
|
||||
Optional<StyleProperties> compute_pseudo_element_style_if_needed(DOM::Element&, Optional<CSS::Selector::PseudoElement::Type>) const;
|
||||
|
||||
Vector<MatchingRule> collect_matching_rules(DOM::Element const&, CascadeOrigin, Optional<CSS::Selector::PseudoElement::Type>, FlyString const& qualified_layer_name = {}) const;
|
||||
|
||||
void invalidate_rule_cache();
|
||||
|
||||
Gfx::Font const& initial_font() const;
|
||||
|
||||
void did_load_font(FlyString const& family_name);
|
||||
|
||||
Optional<FontLoader&> load_font_face(ParsedFontFace const&, ESCAPING Function<void(FontLoader const&)> on_load = {}, ESCAPING Function<void()> on_fail = {});
|
||||
|
||||
void load_fonts_from_sheet(CSSStyleSheet&);
|
||||
void unload_fonts_from_sheet(CSSStyleSheet&);
|
||||
|
||||
RefPtr<Gfx::FontCascadeList const> compute_font_for_style_values(DOM::Element const* element, Optional<CSS::Selector::PseudoElement::Type> pseudo_element, CSSStyleValue const& font_family, CSSStyleValue const& font_size, CSSStyleValue const& font_style, CSSStyleValue const& font_weight, CSSStyleValue const& font_stretch, int math_depth = 0) const;
|
||||
|
||||
void set_viewport_rect(Badge<DOM::Document>, CSSPixelRect const& viewport_rect) { m_viewport_rect = viewport_rect; }
|
||||
|
||||
enum class AnimationRefresh {
|
||||
No,
|
||||
Yes,
|
||||
};
|
||||
void collect_animation_into(DOM::Element&, Optional<CSS::Selector::PseudoElement::Type>, JS::NonnullGCPtr<Animations::KeyframeEffect> animation, StyleProperties& style_properties, AnimationRefresh = AnimationRefresh::No) const;
|
||||
|
||||
[[nodiscard]] bool has_has_selectors() const { return m_has_has_selectors; }
|
||||
|
||||
size_t number_of_css_font_faces_with_loading_in_progress() const;
|
||||
|
||||
private:
|
||||
enum class ComputeStyleMode {
|
||||
Normal,
|
||||
CreatePseudoElementStyleIfNeeded,
|
||||
};
|
||||
|
||||
struct MatchingFontCandidate;
|
||||
|
||||
[[nodiscard]] bool should_reject_with_ancestor_filter(Selector const&) const;
|
||||
|
||||
Optional<StyleProperties> compute_style_impl(DOM::Element&, Optional<CSS::Selector::PseudoElement::Type>, ComputeStyleMode) const;
|
||||
void compute_cascaded_values(StyleProperties&, DOM::Element&, Optional<CSS::Selector::PseudoElement::Type>, bool& did_match_any_pseudo_element_rules, ComputeStyleMode) const;
|
||||
static RefPtr<Gfx::FontCascadeList const> find_matching_font_weight_ascending(Vector<MatchingFontCandidate> const& candidates, int target_weight, float font_size_in_pt, bool inclusive);
|
||||
static RefPtr<Gfx::FontCascadeList const> find_matching_font_weight_descending(Vector<MatchingFontCandidate> const& candidates, int target_weight, float font_size_in_pt, bool inclusive);
|
||||
RefPtr<Gfx::FontCascadeList const> font_matching_algorithm(FontFaceKey const& key, float font_size_in_pt) const;
|
||||
void compute_font(StyleProperties&, DOM::Element const*, Optional<CSS::Selector::PseudoElement::Type>) const;
|
||||
void compute_math_depth(StyleProperties&, DOM::Element const*, Optional<CSS::Selector::PseudoElement::Type>) const;
|
||||
void compute_defaulted_values(StyleProperties&, DOM::Element const*, Optional<CSS::Selector::PseudoElement::Type>) const;
|
||||
void start_needed_transitions(StyleProperties const& old_style, StyleProperties& new_style, DOM::Element&, Optional<Selector::PseudoElement::Type>) const;
|
||||
void absolutize_values(StyleProperties&) const;
|
||||
void resolve_effective_overflow_values(StyleProperties&) const;
|
||||
void transform_box_type_if_needed(StyleProperties&, DOM::Element const&, Optional<CSS::Selector::PseudoElement::Type>) const;
|
||||
|
||||
void compute_defaulted_property_value(StyleProperties&, DOM::Element const*, CSS::PropertyID, Optional<CSS::Selector::PseudoElement::Type>) const;
|
||||
|
||||
void set_all_properties(DOM::Element&, Optional<CSS::Selector::PseudoElement::Type>, StyleProperties&, CSSStyleValue const&, DOM::Document&, CSS::CSSStyleDeclaration const*, StyleProperties const& style_for_revert, StyleProperties const& style_for_revert_layer, Important = Important::No) const;
|
||||
|
||||
template<typename Callback>
|
||||
void for_each_stylesheet(CascadeOrigin, Callback) const;
|
||||
|
||||
[[nodiscard]] CSSPixelRect viewport_rect() const { return m_viewport_rect; }
|
||||
|
||||
[[nodiscard]] Length::FontMetrics calculate_root_element_font_metrics(StyleProperties const&) const;
|
||||
|
||||
Vector<FlyString> m_qualified_layer_names_in_order;
|
||||
void build_qualified_layer_names_cache();
|
||||
|
||||
struct LayerMatchingRules {
|
||||
FlyString qualified_layer_name;
|
||||
Vector<MatchingRule> rules;
|
||||
};
|
||||
|
||||
struct MatchingRuleSet {
|
||||
Vector<MatchingRule> user_agent_rules;
|
||||
Vector<MatchingRule> user_rules;
|
||||
Vector<LayerMatchingRules> author_rules;
|
||||
};
|
||||
|
||||
void cascade_declarations(StyleProperties&, DOM::Element&, Optional<CSS::Selector::PseudoElement::Type>, Vector<MatchingRule> const&, CascadeOrigin, Important, StyleProperties const& style_for_revert, StyleProperties const& style_for_revert_layer) const;
|
||||
|
||||
void build_rule_cache();
|
||||
void build_rule_cache_if_needed() const;
|
||||
|
||||
JS::NonnullGCPtr<DOM::Document> m_document;
|
||||
|
||||
struct RuleCache {
|
||||
HashMap<FlyString, Vector<MatchingRule>> rules_by_id;
|
||||
HashMap<FlyString, Vector<MatchingRule>> rules_by_class;
|
||||
HashMap<FlyString, Vector<MatchingRule>> rules_by_tag_name;
|
||||
HashMap<FlyString, Vector<MatchingRule>, AK::ASCIICaseInsensitiveFlyStringTraits> rules_by_attribute_name;
|
||||
Array<Vector<MatchingRule>, to_underlying(CSS::Selector::PseudoElement::Type::KnownPseudoElementCount)> rules_by_pseudo_element;
|
||||
Vector<MatchingRule> root_rules;
|
||||
Vector<MatchingRule> other_rules;
|
||||
|
||||
HashMap<FlyString, NonnullRefPtr<Animations::KeyframeEffect::KeyFrameSet>> rules_by_animation_keyframes;
|
||||
|
||||
bool has_has_selectors { false };
|
||||
};
|
||||
|
||||
NonnullOwnPtr<RuleCache> make_rule_cache_for_cascade_origin(CascadeOrigin);
|
||||
|
||||
RuleCache const& rule_cache_for_cascade_origin(CascadeOrigin) const;
|
||||
|
||||
bool m_has_has_selectors { false };
|
||||
OwnPtr<RuleCache> m_author_rule_cache;
|
||||
OwnPtr<RuleCache> m_user_rule_cache;
|
||||
OwnPtr<RuleCache> m_user_agent_rule_cache;
|
||||
JS::Handle<CSSStyleSheet> m_user_style_sheet;
|
||||
|
||||
using FontLoaderList = Vector<NonnullOwnPtr<FontLoader>>;
|
||||
HashMap<FontFaceKey, FontLoaderList> m_loaded_fonts;
|
||||
|
||||
Length::FontMetrics m_default_font_metrics;
|
||||
Length::FontMetrics m_root_element_font_metrics;
|
||||
|
||||
CSSPixelRect m_viewport_rect;
|
||||
|
||||
CountingBloomFilter<u8, 14> m_ancestor_filter;
|
||||
};
|
||||
|
||||
class FontLoader : public ResourceClient {
|
||||
public:
|
||||
FontLoader(StyleComputer& style_computer, FlyString family_name, Vector<Gfx::UnicodeRange> unicode_ranges, Vector<URL::URL> urls, ESCAPING Function<void(FontLoader const&)> on_load = {}, ESCAPING Function<void()> on_fail = {});
|
||||
|
||||
virtual ~FontLoader() override;
|
||||
|
||||
Vector<Gfx::UnicodeRange> const& unicode_ranges() const { return m_unicode_ranges; }
|
||||
RefPtr<Gfx::Typeface> vector_font() const { return m_vector_font; }
|
||||
|
||||
RefPtr<Gfx::Font> font_with_point_size(float point_size);
|
||||
void start_loading_next_url();
|
||||
|
||||
bool is_loading() const { return resource() && resource()->is_pending(); }
|
||||
|
||||
private:
|
||||
// ^ResourceClient
|
||||
virtual void resource_did_load() override;
|
||||
virtual void resource_did_fail() override;
|
||||
|
||||
void resource_did_load_or_fail();
|
||||
|
||||
ErrorOr<NonnullRefPtr<Gfx::Typeface>> try_load_font();
|
||||
|
||||
StyleComputer& m_style_computer;
|
||||
FlyString m_family_name;
|
||||
Vector<Gfx::UnicodeRange> m_unicode_ranges;
|
||||
RefPtr<Gfx::Typeface> m_vector_font;
|
||||
Vector<URL::URL> m_urls;
|
||||
Function<void(FontLoader const&)> m_on_load;
|
||||
Function<void()> m_on_fail;
|
||||
};
|
||||
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue