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LibWeb: Implement DOMTreeModel::index_for_node()

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This will be used to find the index to select when the DOM Inspector is
told to inspect a specific node.
This commit is contained in:
Sam Atkins 2021-08-27 17:36:10 +01:00 • committed by Andreas Kling
parent fe820f6d5a
commit e824454ab4
2 changed files with 21 additions and 0 deletions
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18
Userland/Libraries/LibWeb/DOMTreeModel.cpp
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@ -155,6 +155,7 @@ GUI::Variant DOMTreeModel::data(const GUI::ModelIndex& index, GUI::ModelRole rol
void DOMTreeModel::map_dom_nodes_to_parent(JsonObject const* parent, JsonObject const* node)
{
m_dom_node_to_parent_map.set(node, parent);
m_node_id_to_dom_node_map.set(node->get("id").to_i32(), node);
auto const* children = get_children(*node);
if (!children)
@ -166,4 +167,21 @@ void DOMTreeModel::map_dom_nodes_to_parent(JsonObject const* parent, JsonObject
});
}
GUI::ModelIndex DOMTreeModel::index_for_node(i32 node_id) const
{
auto node = m_node_id_to_dom_node_map.get(node_id).value_or(nullptr);
if (node) {
auto* parent = get_parent(*node);
auto parent_children = get_children(*parent);
for (size_t i = 0; i < parent_children->size(); i++) {
if (&parent_children->at(i).as_object() == node) {
return create_index(i, 0, node);
}
}
}
dbgln("Didn't find index for node {}!", node_id);
return {};
}
}