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LibWeb: Split CSS::StyleSheet into StyleSheet and CSSStyleSheet
This is a little convoluted but matches the CSSOM specification.
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17 changed files with 162 additions and 82 deletions
88
Userland/Libraries/LibWeb/CSS/CSSStyleSheet.h
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88
Userland/Libraries/LibWeb/CSS/CSSStyleSheet.h
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/*
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* Copyright (c) 2019-2021, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/TypeCasts.h>
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#include <LibWeb/CSS/CSSImportRule.h>
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#include <LibWeb/CSS/CSSRule.h>
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#include <LibWeb/CSS/StyleSheet.h>
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#include <LibWeb/Loader/Resource.h>
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namespace Web::CSS {
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class CSSStyleSheet final : public StyleSheet {
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public:
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static NonnullRefPtr<CSSStyleSheet> create(NonnullRefPtrVector<CSSRule> rules)
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{
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return adopt(*new CSSStyleSheet(move(rules)));
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}
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virtual ~CSSStyleSheet();
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const NonnullRefPtrVector<CSSRule>& rules() const { return m_rules; }
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NonnullRefPtrVector<CSSRule>& rules() { return m_rules; }
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template<typename Callback>
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void for_each_effective_style_rule(Callback callback) const
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{
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for (auto& rule : m_rules)
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if (rule.type() == CSSRule::Type::Style) {
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callback(downcast<CSSStyleRule>(rule));
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} else if (rule.type() == CSSRule::Type::Import) {
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const auto& import_rule = downcast<CSSImportRule>(rule);
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if (import_rule.has_import_result())
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import_rule.loaded_style_sheet()->for_each_effective_style_rule(callback);
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}
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}
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template<typename Callback>
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bool for_first_not_loaded_import_rule(Callback callback)
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{
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for (auto& rule : m_rules)
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if (rule.type() == CSSRule::Type::Import) {
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auto& import_rule = downcast<CSSImportRule>(rule);
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if (!import_rule.has_import_result()) {
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callback(import_rule);
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return true;
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}
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if (import_rule.loaded_style_sheet()->for_first_not_loaded_import_rule(callback)) {
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return true;
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}
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}
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return false;
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}
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private:
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explicit CSSStyleSheet(NonnullRefPtrVector<CSSRule>);
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NonnullRefPtrVector<CSSRule> m_rules;
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};
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}
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