IntersectionController

Purpose

Utility controller to wire up other controller actions when an element comes into or leaves the viewport.

Actions

Action	Purpose
-	-

Targets

Target	Purpose	Default
-	-	-

Classes

Class	Purpose	Default
-	-	-

Values

Value	Type	Description	Default
threshold	String	The single number or comma-separated list of thresholds to report intersection at. See IntersectionObserver constructor options for more.	0,1

Events

Event	When	Dispatched on	event.detail
intersection:appear	When the observed element enters the viewport	the controller root element	element: the observed controller root element
intersection:disappear	When the observed element leaves the viewport	the controller root element	element: the observed controller root element

Side Effects

Installs an IntersectionObserver to watch the controller element

How to Use