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/*
* Copyright (c) 2020, Luke Wilde <luke.wilde@live.co.uk>
* 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/Parser/DeprecatedCSSParser.h>
#include <LibWeb/CSS/SelectorEngine.h>
#include <LibWeb/DOM/ParentNode.h>
#include <LibWeb/Dump.h>
namespace Web::DOM {
RefPtr<Element> ParentNode::query_selector(const StringView& selector_text)
{
auto selector = parse_selector(CSS::ParsingContext(*this), selector_text);
if (!selector.has_value())
return {};
dump_selector(selector.value());
RefPtr<Element> result;
for_each_in_inclusive_subtree_of_type<Element>([&](auto& element) {
if (SelectorEngine::matches(selector.value(), element)) {
result = element;
return IterationDecision::Break;
}
return IterationDecision::Continue;
});
return result;
}
NonnullRefPtrVector<Element> ParentNode::query_selector_all(const StringView& selector_text)
{
auto selector = parse_selector(CSS::ParsingContext(*this), selector_text);
if (!selector.has_value())
return {};
dump_selector(selector.value());
NonnullRefPtrVector<Element> elements;
for_each_in_inclusive_subtree_of_type<Element>([&](auto& element) {
if (SelectorEngine::matches(selector.value(), element)) {
elements.append(element);
}
return IterationDecision::Continue;
});
return elements;
}
RefPtr<Element> ParentNode::first_element_child()
{
return first_child_of_type<Element>();
}
RefPtr<Element> ParentNode::last_element_child()
{
return last_child_of_type<Element>();
}
// https://dom.spec.whatwg.org/#dom-parentnode-childelementcount
u32 ParentNode::child_element_count() const
{
u32 count = 0;
for (auto* child = first_child(); child; child = child->next_sibling()) {
if (is<Element>(child))
++count;
}
return count;
}
}
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