6f433c8656
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.
125 lines
4.4 KiB
C++
125 lines
4.4 KiB
C++
/*
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* Copyright (c) 2018-2022, 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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#pragma once
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/CSS/StyleValue.h>
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namespace Web::CSS {
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enum class Important {
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No,
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Yes,
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};
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struct StyleProperty {
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Important important { Important::No };
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CSS::PropertyID property_id;
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NonnullRefPtr<StyleValue> value;
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String custom_name {};
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};
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class CSSStyleDeclaration : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(CSSStyleDeclaration, Bindings::PlatformObject);
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public:
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virtual ~CSSStyleDeclaration() = default;
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virtual size_t length() const = 0;
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virtual String item(size_t index) const = 0;
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virtual Optional<StyleProperty> property(PropertyID) const = 0;
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virtual DOM::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority = ""sv) = 0;
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virtual DOM::ExceptionOr<String> remove_property(PropertyID) = 0;
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DOM::ExceptionOr<void> set_property(StringView property_name, StringView css_text, StringView priority);
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DOM::ExceptionOr<String> remove_property(StringView property_name);
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String get_property_value(StringView property) const;
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String get_property_priority(StringView property) const;
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String css_text() const;
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void set_css_text(StringView);
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virtual String serialized() const = 0;
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virtual JS::ThrowCompletionOr<bool> internal_has_property(JS::PropertyKey const& name) const override;
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virtual JS::ThrowCompletionOr<JS::Value> internal_get(JS::PropertyKey const&, JS::Value receiver) const override;
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virtual JS::ThrowCompletionOr<bool> internal_set(JS::PropertyKey const&, JS::Value value, JS::Value receiver) override;
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protected:
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explicit CSSStyleDeclaration(HTML::Window&);
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};
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class PropertyOwningCSSStyleDeclaration : public CSSStyleDeclaration {
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WEB_PLATFORM_OBJECT(PropertyOwningCSSStyleDeclaration, CSSStyleDeclaration);
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friend class ElementInlineCSSStyleDeclaration;
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public:
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static PropertyOwningCSSStyleDeclaration* create(HTML::Window&, Vector<StyleProperty>, HashMap<String, StyleProperty> custom_properties);
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virtual ~PropertyOwningCSSStyleDeclaration() override = default;
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virtual size_t length() const override;
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virtual String item(size_t index) const override;
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virtual Optional<StyleProperty> property(PropertyID) const override;
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virtual DOM::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority) override;
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virtual DOM::ExceptionOr<String> remove_property(PropertyID) override;
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Vector<StyleProperty> const& properties() const { return m_properties; }
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HashMap<String, StyleProperty> const& custom_properties() const { return m_custom_properties; }
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Optional<StyleProperty> custom_property(String const& custom_property_name) const { return m_custom_properties.get(custom_property_name); }
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size_t custom_property_count() const { return m_custom_properties.size(); }
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virtual String serialized() const final override;
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protected:
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PropertyOwningCSSStyleDeclaration(HTML::Window&, Vector<StyleProperty>, HashMap<String, StyleProperty>);
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virtual void update_style_attribute() { }
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private:
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bool set_a_css_declaration(PropertyID, NonnullRefPtr<StyleValue>, Important);
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Vector<StyleProperty> m_properties;
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HashMap<String, StyleProperty> m_custom_properties;
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};
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class ElementInlineCSSStyleDeclaration final : public PropertyOwningCSSStyleDeclaration {
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WEB_PLATFORM_OBJECT(ElementInlineCSSStyleDeclaration, PropertyOwningCSSStyleDeclaration);
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public:
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static ElementInlineCSSStyleDeclaration* create(DOM::Element&, Vector<StyleProperty> properties, HashMap<String, StyleProperty> custom_properties);
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virtual ~ElementInlineCSSStyleDeclaration() override = default;
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DOM::Element* element() { return m_element.ptr(); }
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const DOM::Element* element() const { return m_element.ptr(); }
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bool is_updating() const { return m_updating; }
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private:
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explicit ElementInlineCSSStyleDeclaration(DOM::Element&, Vector<StyleProperty> properties, HashMap<String, StyleProperty> custom_properties);
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virtual void visit_edges(Cell::Visitor&) override;
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virtual void update_style_attribute() override;
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JS::GCPtr<DOM::Element> m_element;
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// https://drafts.csswg.org/cssom/#cssstyledeclaration-updating-flag
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bool m_updating { false };
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};
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}
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WRAPPER_HACK(CSSStyleDeclaration, Web::CSS)
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