AsyncMeasureSize<E> typedef

AsyncMeasureSize<E> = Stream<Rectangle<num>> Function(E element, {bool track})

A handler to return the position and size of the content of element.

If track is true, should observe the DOM for layout changes. This is used to decouple DomPopupSource from the Ruler package.

Implementation

typedef AsyncMeasureSize<E> = Stream<Rectangle> Function(E element,
    {bool track});