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LibHTML: Have Document track its hovered Node

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This gets set from HtmlView::mousemove_event() at the moment.
This commit is contained in:
Andreas Kling 2019-09-29 11:50:35 +02:00
parent 754e6e0f67
commit 88de955073
Notes: sideshowbarker 2024-07-19 11:53:53 +09:00
3 changed files with 18 additions and 1 deletions
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5
Libraries/LibHTML/DOM/Document.h
View file

@ -25,7 +25,12 @@ public:
virtual String tag_name() const override { return "#document"; }
void set_hovered_node(Node* node) { m_hovered_node = node; }
Node* hovered_node() { return m_hovered_node; }
const Node* hovered_node() const { return m_hovered_node; }
private:
OwnPtr<StyleResolver> m_style_resolver;
NonnullRefPtrVector<StyleSheet> m_sheets;
RefPtr<Node> m_hovered_node;
};

8
Libraries/LibHTML/HtmlView.cpp
View file

@ -85,11 +85,17 @@ void HtmlView::mousemove_event(GMouseEvent& event)
if (!m_layout_root)
return GScrollableWidget::mousemove_event(event);
bool hovered_node_changed = false;
auto result = m_layout_root->hit_test(event.position());
if (result.layout_node) {
if (auto* node = result.layout_node->node()) {
auto* node = result.layout_node->node();
m_document->set_hovered_node(const_cast<Node*>(node));
hovered_node_changed = node == m_document->hovered_node();
if (node) {
dbg() << "HtmlView: mousemove: " << node->tag_name() << "{" << node << "}";
}
}
if (hovered_node_changed)
update();
event.accept();
}

6
Libraries/LibHTML/Layout/LayoutNode.cpp
View file

@ -1,9 +1,11 @@
#include <LibGUI/GPainter.h>
#include <LibHTML/DOM/Document.h>
#include <LibHTML/DOM/Element.h>
#include <LibHTML/Layout/LayoutBlock.h>
#include <LibHTML/Layout/LayoutNode.h>
//#define DRAW_BOXES_AROUND_LAYOUT_NODES
//#define DRAW_BOXES_AROUND_HOVERED_NODES
LayoutNode::LayoutNode(const Node* node, StyleProperties&& style_properties)
: m_node(node)
@ -35,6 +37,10 @@ void LayoutNode::render(RenderingContext& context)
{
#ifdef DRAW_BOXES_AROUND_LAYOUT_NODES
context.painter().draw_rect(m_rect, Color::Blue);
#endif
#ifdef DRAW_BOXES_AROUND_HOVERED_NODES
if (!is_anonymous() && node() == document().hovered_node())
context.painter().draw_rect(m_rect, Color::Red);
#endif
// TODO: render our background and border
for_each_child([&](auto& child) {