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LibWeb: Add DOMTreeModel::index_for_node()

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This is needed for telling the DOM Inspector to select a given Node.
This commit is contained in:
Sam Atkins 2021-08-17 16:33:07 +01:00 • committed by Andreas Kling
parent 3ef4ba810a
commit 8eef509c1b
2 changed files with 18 additions and 0 deletions
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16
Userland/Libraries/LibWeb/DOMTreeModel.cpp
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@ -131,4 +131,20 @@ GUI::Variant DOMTreeModel::data(const GUI::ModelIndex& index, GUI::ModelRole rol
return {};
}
GUI::ModelIndex DOMTreeModel::index_for_node(DOM::Node* node) const
{
if (!node)
return {};
DOM::Node* parent = node->parent();
if (!parent)
return {};
auto maybe_row = parent->index_of_child(*node);
if (maybe_row.has_value())
return create_index(maybe_row.value(), 0, node);
return {};
}
}