Doc > Nodes > EVENT > ScrollTrigger

Triggers events based on page scroll

Description

In order to test the event/ScrollTrigger node, you can create the following setup:

using Polygonjs local app, add the following line to the EditorConfig.ts file, inside the configureEditor function:

options.api.panel.viewer.setData({viewerId: 'my-viewer', html: require('./viewer.html')})

and create a file viewer.html in the same folder as EditorConfig.ts, containing the following:

<div id="main-container" style="position: relative; height: 100%"> <div id="my-viewer" style="position: absolute; width: 100%; height: 100%"></div> <div id="scroll-container" style="position: relative; height: 100%; overflow-y: scroll"> <div id="checkpoint1" style="height: 400px; color: white">checkpoint 1</div> <div id="checkpoint2" style="height: 400px; color: red">checkpoint 2</div> <div id="checkpoint3" style="height: 400px; color: green">checkpoint 3</div> <div id="checkpoint4" style="height: 400px; color: lightred">checkpoint 4</div> </div> </div>

Then reload the editor. You will then see the viewer with a scrollbar and other divs inside.

Then create a event/ScrollTrigger node, and set its parameters as follow:

• param element to #checkpoint2
• param useViewport to false
• param scroller to #scroll-container
• param markers to true

You should now be able to connect other event nodes to the outputs of the scrollTrigger node, and have those be triggered as you scroll.

Parameters