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a2ccb00e1d
These classes only needed Window to get at its realm. Pass a realm directly to construct CSS classes.
115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/*
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* Copyright (c) 2019-2022, 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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#include <LibWeb/Bindings/CSSStyleSheetPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSStyleSheet.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/CSS/StyleSheetList.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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CSSStyleSheet* CSSStyleSheet::create(JS::Realm& realm, CSSRuleList& rules, Optional<AK::URL> location)
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{
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return realm.heap().allocate<CSSStyleSheet>(realm, realm, rules, move(location));
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}
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CSSStyleSheet::CSSStyleSheet(JS::Realm& realm, CSSRuleList& rules, Optional<AK::URL> location)
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: StyleSheet(realm)
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, m_rules(&rules)
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{
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set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSStyleSheetPrototype>(realm, "CSSStyleSheet"));
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if (location.has_value())
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set_location(location->to_string());
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for (auto& rule : *m_rules)
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rule.set_parent_style_sheet(this);
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}
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void CSSStyleSheet::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_style_sheet_list.ptr());
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visitor.visit(m_rules);
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visitor.visit(m_owner_css_rule);
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}
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// https://www.w3.org/TR/cssom/#dom-cssstylesheet-insertrule
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WebIDL::ExceptionOr<unsigned> CSSStyleSheet::insert_rule(StringView rule, unsigned index)
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{
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// FIXME: 1. If the origin-clean flag is unset, throw a SecurityError exception.
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// FIXME: 2. If the disallow modification flag is set, throw a NotAllowedError DOMException.
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// 3. Let parsed rule be the return value of invoking parse a rule with rule.
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auto parsed_rule = parse_css_rule(CSS::Parser::ParsingContext {}, rule);
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// 4. If parsed rule is a syntax error, return parsed rule.
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if (!parsed_rule)
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return WebIDL::SyntaxError::create(realm(), "Unable to parse CSS rule.");
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// FIXME: 5. If parsed rule is an @import rule, and the constructed flag is set, throw a SyntaxError DOMException.
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// 6. Return the result of invoking insert a CSS rule rule in the CSS rules at index.
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auto result = m_rules->insert_a_css_rule(parsed_rule, index);
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if (!result.is_exception()) {
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// NOTE: The spec doesn't say where to set the parent style sheet, so we'll do it here.
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parsed_rule->set_parent_style_sheet(this);
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if (m_style_sheet_list) {
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m_style_sheet_list->document().style_computer().invalidate_rule_cache();
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m_style_sheet_list->document().invalidate_style();
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}
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}
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return result;
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}
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// https://www.w3.org/TR/cssom/#dom-cssstylesheet-deleterule
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WebIDL::ExceptionOr<void> CSSStyleSheet::delete_rule(unsigned index)
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{
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// FIXME: 1. If the origin-clean flag is unset, throw a SecurityError exception.
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// FIXME: 2. If the disallow modification flag is set, throw a NotAllowedError DOMException.
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// 3. Remove a CSS rule in the CSS rules at index.
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auto result = m_rules->remove_a_css_rule(index);
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if (!result.is_exception()) {
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if (m_style_sheet_list) {
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m_style_sheet_list->document().style_computer().invalidate_rule_cache();
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m_style_sheet_list->document().invalidate_style();
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}
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}
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return result;
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}
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// https://www.w3.org/TR/cssom/#dom-cssstylesheet-removerule
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WebIDL::ExceptionOr<void> CSSStyleSheet::remove_rule(unsigned index)
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{
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// The removeRule(index) method must run the same steps as deleteRule().
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return delete_rule(index);
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}
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void CSSStyleSheet::for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const
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{
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m_rules->for_each_effective_style_rule(callback);
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}
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bool CSSStyleSheet::evaluate_media_queries(HTML::Window const& window)
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{
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return m_rules->evaluate_media_queries(window);
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}
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void CSSStyleSheet::set_style_sheet_list(Badge<StyleSheetList>, StyleSheetList* list)
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{
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m_style_sheet_list = list;
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}
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}
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