void
VariablesView::TreeTableNodeExpandedChanged(TreeTable* table,
const TreeTablePath& path, bool expanded)
{
if (expanded) {
ModelNode* node = (ModelNode*)fVariableTableModel->NodeForPath(path);
if (node == NULL)
return;
fVariableTableModel->NodeExpanded(node);
// request the values of all children that don't have any yet
// If the node only has a hidden child, directly load the child's
// children's values.
if (node->CountChildren() == 1) {
ModelNode* child = node->ChildAt(0);
if (child->IsHidden())
node = child;
}
// request the values
for (int32 i = 0; ModelNode* child = node->ChildAt(i); i++) {
if (child->IsPresentationNode())
continue;
_RequestNodeValue(child);
}
}
}
int32
VariablesView::VariableTableModel::CountChildren(void* parent) const
{
if (parent == this)
return fNodes.CountItems();
// If the node only has a hidden child, pretend the node directly has the
// child's children.
ModelNode* modelNode = (ModelNode*)parent;
int32 childCount = modelNode->CountChildren();
if (childCount == 1) {
ModelNode* child = modelNode->ChildAt(0);
if (child->IsHidden())
return child->CountChildren();
}
return childCount;
}