Assertion: tree's node | /r/HasProperty | visible
Facets:
Source sentences:
text: The code creates a node, inserts it into the tree model, and then, if appropriate, requests that the nodes above it be expanded and the tree scrolled so that the new node is visible.
text: Up to this point we've calculated which nodes should be visible and their computed styles, but we have not calculated their exact position and size within the viewport of the device---that's the "layout" stage, also known as "reflow.