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Fix SceneTree dock filter crash

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The filter was crashing for two reasons:
1) Deleting a child invalidated the iteration of children
2) Child was accessed after deletion
This commit is contained in:
lawnjelly 2024-02-28 05:38:33 +00:00
parent 50fa1896b8
commit 39e61b76c6
1 changed files with 12 additions and 3 deletions
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15
editor/scene_tree_editor.cpp
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@ -594,9 +594,16 @@ bool SceneTreeEditor::_update_filter(TreeItem *p_parent, bool p_scroll_to_select
}
bool keep_for_children = false;
// Get the list of children ahead of time, as the list may be invalidated by deleting one of them.
LocalVector<TreeItem *> children;
for (TreeItem *child = p_parent->get_children(); child; child = child->get_next()) {
children.push_back(child);
}
for (uint32_t n = 0; n < children.size(); n++) {
// Always keep if at least one of the children are kept.
keep_for_children = _update_filter(child, p_scroll_to_selected) || keep_for_children;
keep_for_children = _update_filter(children[n], p_scroll_to_selected) || keep_for_children;
}
// Now find other reasons to keep this Node, too.
@ -617,8 +624,6 @@ bool SceneTreeEditor::_update_filter(TreeItem *p_parent, bool p_scroll_to_select
}
}
}
} else {
memdelete(p_parent);
}
if (editor_selection) {
@ -635,6 +640,10 @@ bool SceneTreeEditor::_update_filter(TreeItem *p_parent, bool p_scroll_to_select
}
}
if (!(keep || keep_for_children)) {
memdelete(p_parent);
}
return keep || keep_for_children;
}