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29a4da30b7
The StyleResolver can find the specified CSS values for the parent element via the DOM. Forcing everyone to locate specified values for their parent was completely unnecessary.
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, 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/OwnPtr.h>
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#include <LibWeb/CSS/StyleProperties.h>
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#include <LibWeb/Forward.h>
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namespace Web::CSS {
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struct MatchingRule {
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RefPtr<StyleRule> rule;
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size_t style_sheet_index { 0 };
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size_t rule_index { 0 };
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size_t selector_index { 0 };
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};
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class StyleResolver {
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public:
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explicit StyleResolver(DOM::Document&);
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~StyleResolver();
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DOM::Document& document() { return m_document; }
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const DOM::Document& document() const { return m_document; }
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NonnullRefPtr<StyleProperties> resolve_style(const DOM::Element&) const;
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Vector<MatchingRule> collect_matching_rules(const DOM::Element&) const;
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void sort_matching_rules(Vector<MatchingRule>&) const;
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static bool is_inherited_property(CSS::PropertyID);
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private:
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template<typename Callback>
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void for_each_stylesheet(Callback) const;
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DOM::Document& m_document;
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};
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}
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