// Rule: UselessLayout
//
// Description: Checks whether current node can be removed.
//
// Conditions:
// - The node has children
// - The node does not have siblings
// - The node's parent is not a scroll view (horizontal or vertical)
// - The node does not have a background or its parent does not have a
//   background or neither the node and its parent have a background
// - The parent is not a <merge/>

if (!node.isRoot() && !(node['..'].name() in ["ScrollView", "HorizontalScrollView"]) &&
        node['..']['*'].size() == 1 && node['*'].size() > 0 && ((node.'@android:background' ||
        node['..'].'@android:background') || (!node.'@android:background' &&
        !node['..'].'@android:background'))) {
    analysis << "This ${node.name()} layout or its ${node['..'].name()} parent is " +
            "${node['..'].'@android:id' ? "possibly useless" : "useless"}"
}