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LibGUI: Only report toggled directories once on subtree collapse/expansion

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This prevents redundant calls to on_toggle for the same indices when
subtrees are collapsed or expanded.
This commit is contained in:
thankyouverycool 2020-07-11 18:28:06 -04:00 • committed by Andreas Kling
parent f1bbc39148
commit 366d7e6d05
1 changed files with 6 additions and 3 deletions
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9
Libraries/LibGUI/TreeView.cpp
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@ -110,13 +110,16 @@ void TreeView::doubleclick_event(MouseEvent& event)
void TreeView::set_open_state_of_all_in_subtree(const ModelIndex& root, bool open)
{
if (root.is_valid())
if (root.is_valid()) {
ensure_metadata_for_index(root).open = open;
if (model()->row_count(root)) {
if (on_toggle)
on_toggle(root, open);
}
}
int row_count = model()->row_count(root);
int column = model()->tree_column();
for (int row = 0; row < row_count; ++row) {
if (on_toggle)
on_toggle(root, open);
auto index = model()->index(row, column, root);
set_open_state_of_all_in_subtree(index, open);
}