layerLinkConfig property
see LayerLinkConfig
WheelOverLayEntryContent
uses layerLinkConfig to decide whether to
link this overlay to a target.
This link is necessary for metric changes or scroll when you want
the layer to stick to some element(target).
When layerLinkConfig is not provided in constructor, it defaults to not-enabled, which causes the overlay to be a full-screen overlay with dimmer. alignment should be set to center in this case.
When layerLinkConfig is provided and enabled, the layer will stick to the target, alignment should be set to topLeft in this case. TODO: refactor this part to have more flexible behaviour
Implementation
final LayerLinkConfig layerLinkConfig;