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LibWeb: Dispatch mouseenter and mouseleave events when required

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I've left a FIXME here about populating the events with mouse
coordinates, button states, etc. We also need to verify that the
dispatch order either doesn't matter or at least match other engines.
This commit is contained in:
Andreas Kling 2022-10-03 14:51:59 +02:00
parent f260afedb1
commit 9749eda09f
Notes: sideshowbarker 2024-07-17 08:37:36 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/9749eda09f
1 changed files with 20 additions and 1 deletions
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21
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -936,10 +936,29 @@ void Document::set_hovered_node(Node* node)
JS::GCPtr<Node> old_hovered_node = move(m_hovered_node);
m_hovered_node = node;
if (auto* common_ancestor = find_common_ancestor(old_hovered_node, m_hovered_node))
auto* common_ancestor = find_common_ancestor(old_hovered_node, m_hovered_node);
if (common_ancestor)
common_ancestor->invalidate_style();
else
invalidate_style();
// https://w3c.github.io/uievents/#mouseleave
if (old_hovered_node && (!m_hovered_node || !m_hovered_node->is_descendant_of(*old_hovered_node))) {
// FIXME: Check if we need to dispatch these events in a specific order.
for (auto target = old_hovered_node; target && target.ptr() != common_ancestor; target = target->parent()) {
// FIXME: Populate the event with mouse coordinates, etc.
target->dispatch_event(*UIEvents::MouseEvent::create(realm(), UIEvents::EventNames::mouseleave));
}
}
// https://w3c.github.io/uievents/#mouseenter
if (m_hovered_node && (!old_hovered_node || !m_hovered_node->is_ancestor_of(*old_hovered_node))) {
// FIXME: Check if we need to dispatch these events in a specific order.
for (auto target = m_hovered_node; target.ptr() != common_ancestor; target = target->parent()) {
// FIXME: Populate the event with mouse coordinates, etc.
target->dispatch_event(*UIEvents::MouseEvent::create(realm(), UIEvents::EventNames::mouseenter));
}
}
}
JS::NonnullGCPtr<HTMLCollection> Document::get_elements_by_name(String const& name)