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LibHTML: Implement basic :hover pseudo-class support

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This is currently very aggressive. Whenever the Document's hovered node
changes, we invalidate all style and do a full relayout.

It does look cool though. So cool that I'm adding it to the default
stylesheet. :^)
This commit is contained in:
Andreas Kling 2019-10-14 17:54:17 +02:00
parent 605a225b53
commit 61ef17b87a
6 changed files with 52 additions and 1 deletions
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10
Libraries/LibHTML/DOM/Document.cpp
View file

@ -195,3 +195,13 @@ const LayoutDocument* Document::layout_node() const
{
return static_cast<const LayoutDocument*>(Node::layout_node());
}
void Document::set_hovered_node(Node* node)
{
if (m_hovered_node == node)
return;
m_hovered_node = node;
invalidate_style();
}

2
Libraries/LibHTML/DOM/Document.h
View file

@ -38,7 +38,7 @@ public:
virtual String tag_name() const override { return "#document"; }
void set_hovered_node(Node* node) { m_hovered_node = node; }
void set_hovered_node(Node*);
Node* hovered_node() { return m_hovered_node; }
const Node* hovered_node() const { return m_hovered_node; }