96f34d26c9
Use a zero-timer to schedule a style update after invalidating style on any node. Nodes now have a needs_style_update flag which helps us batch and coalesce the work. We also start style updates at the root and work our way through the document, updating any node that has the needs_style_update flag set. This is slower than what we were doing before, but far more correct. There is a ton of room for improvement here. :^)
78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
#include <AK/StringBuilder.h>
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#include <LibHTML/CSS/StyleResolver.h>
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#include <LibHTML/DOM/Element.h>
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#include <LibHTML/DOM/HTMLAnchorElement.h>
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#include <LibHTML/DOM/Node.h>
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#include <LibHTML/Layout/LayoutBlock.h>
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#include <LibHTML/Layout/LayoutDocument.h>
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#include <LibHTML/Layout/LayoutInline.h>
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#include <LibHTML/Layout/LayoutNode.h>
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#include <LibHTML/Layout/LayoutText.h>
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Node::Node(Document& document, NodeType type)
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: m_document(document)
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, m_type(type)
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{
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}
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Node::~Node()
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{
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}
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const HTMLAnchorElement* Node::enclosing_link_element() const
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{
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return first_ancestor_of_type<HTMLAnchorElement>();
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}
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const HTMLElement* Node::enclosing_html_element() const
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{
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return first_ancestor_of_type<HTMLElement>();
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}
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String Node::text_content() const
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{
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Vector<String> strings;
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StringBuilder builder;
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for (auto* child = first_child(); child; child = child->next_sibling()) {
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auto text = child->text_content();
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if (!text.is_empty()) {
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builder.append(child->text_content());
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builder.append(' ');
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}
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}
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if (builder.length() > 1)
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builder.trim(1);
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return builder.to_string();
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}
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const Element* Node::next_element_sibling() const
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{
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for (auto* node = next_sibling(); node; node = node->next_sibling()) {
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if (node->is_element())
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return static_cast<const Element*>(node);
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}
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return nullptr;
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}
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const Element* Node::previous_element_sibling() const
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{
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for (auto* node = previous_sibling(); node; node = node->previous_sibling()) {
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if (node->is_element())
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return static_cast<const Element*>(node);
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}
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return nullptr;
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}
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RefPtr<LayoutNode> Node::create_layout_node(const StyleProperties*) const
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{
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return nullptr;
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}
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void Node::invalidate_style()
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{
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for_each_in_subtree([&](auto& node) {
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if (is<Element>(node))
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node.set_needs_style_update(true);
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});
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document().schedule_style_update();
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}
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