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Libraries: Move to Userland/Libraries/

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Andreas Kling 2021-01-12 12:17:30 +01:00
parent dc28c07fa5
commit 13d7c09125
1857 changed files with 266 additions and 274 deletions
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74
Libraries/LibWeb/CSS/StyleInvalidator.cpp
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@ -1,74 +0,0 @@
/*
* Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibWeb/CSS/StyleInvalidator.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Element.h>
namespace Web::CSS {
StyleInvalidator::StyleInvalidator(DOM::Document& document)
: m_document(document)
{
if (!m_document.should_invalidate_styles_on_attribute_changes())
return;
auto& style_resolver = m_document.style_resolver();
m_document.for_each_in_subtree_of_type<DOM::Element>([&](auto& element) {
m_elements_and_matching_rules_before.set(&element, style_resolver.collect_matching_rules(element));
return IterationDecision::Continue;
});
}
StyleInvalidator::~StyleInvalidator()
{
if (!m_document.should_invalidate_styles_on_attribute_changes())
return;
auto& style_resolver = m_document.style_resolver();
m_document.for_each_in_subtree_of_type<DOM::Element>([&](auto& element) {
auto maybe_matching_rules_before = m_elements_and_matching_rules_before.get(&element);
if (!maybe_matching_rules_before.has_value()) {
element.set_needs_style_update(true);
return IterationDecision::Continue;
}
auto& matching_rules_before = maybe_matching_rules_before.value();
auto matching_rules_after = style_resolver.collect_matching_rules(element);
if (matching_rules_before.size() != matching_rules_after.size()) {
element.set_needs_style_update(true);
return IterationDecision::Continue;
}
style_resolver.sort_matching_rules(matching_rules_before);
style_resolver.sort_matching_rules(matching_rules_after);
for (size_t i = 0; i < matching_rules_before.size(); ++i) {
if (matching_rules_before[i].rule != matching_rules_after[i].rule) {
element.set_needs_style_update(true);
break;
}
}
return IterationDecision::Continue;
});
}
}