759bfbb572
Get rid of the old, roundabout way of invalidating the rule cache by incrementing the StyleSheetList "generation". Instead, when something wants to invalidate the rule cache, just have it directly invalidate the rule cache. This makes it much easier to see what's happening anyway.
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/*
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* Copyright (c) 2019-2021, 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/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/DOM/ExceptionOr.h>
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namespace Web::CSS {
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CSSStyleSheet::CSSStyleSheet(NonnullRefPtrVector<CSSRule> rules)
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: m_rules(CSSRuleList::create(move(rules)))
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{
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}
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CSSStyleSheet::~CSSStyleSheet()
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{
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}
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// https://www.w3.org/TR/cssom/#dom-cssstylesheet-insertrule
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DOM::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::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 DOM::SyntaxError::create("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.release_nonnull(), 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-deleterule
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DOM::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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DOM::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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