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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* 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 <AK/StringBuilder.h>
#include <LibWeb/CSS/StyleResolver.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/DOM/HTMLAnchorElement.h>
#include <LibWeb/DOM/Node.h>
#include <LibWeb/Layout/LayoutBlock.h>
#include <LibWeb/Layout/LayoutDocument.h>
#include <LibWeb/Layout/LayoutInline.h>
#include <LibWeb/Layout/LayoutNode.h>
#include <LibWeb/Layout/LayoutText.h>
namespace Web {
Node::Node(Document& document, NodeType type)
: m_document(document)
, m_type(type)
{
}
Node::~Node()
{
}
const HTMLAnchorElement* Node::enclosing_link_element() const
{
for (auto* node = this; node; node = node->parent()) {
if (is<HTMLAnchorElement>(*node) && to<HTMLAnchorElement>(*node).has_attribute("href"))
return to<HTMLAnchorElement>(node);
}
return nullptr;
}
const HTMLElement* Node::enclosing_html_element() const
{
return first_ancestor_of_type<HTMLElement>();
}
String Node::text_content() const
{
Vector<String> strings;
StringBuilder builder;
for (auto* child = first_child(); child; child = child->next_sibling()) {
auto text = child->text_content();
if (!text.is_empty()) {
builder.append(child->text_content());
builder.append(' ');
}
}
if (builder.length() > 1)
builder.trim(1);
return builder.to_string();
}
const Element* Node::next_element_sibling() const
{
for (auto* node = next_sibling(); node; node = node->next_sibling()) {
if (node->is_element())
return static_cast<const Element*>(node);
}
return nullptr;
}
const Element* Node::previous_element_sibling() const
{
for (auto* node = previous_sibling(); node; node = node->previous_sibling()) {
if (node->is_element())
return static_cast<const Element*>(node);
}
return nullptr;
}
RefPtr<LayoutNode> Node::create_layout_node(const StyleProperties*) const
{
return nullptr;
}
void Node::invalidate_style()
{
for_each_in_subtree_of_type<Element>([&](auto& element) {
element.set_needs_style_update(true);
return IterationDecision::Continue;
});
document().schedule_style_update();
}
bool Node::is_link() const
{
auto* enclosing_link = enclosing_link_element();
if (!enclosing_link)
return false;
return enclosing_link->has_attribute("href");
}
}
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