search

flackr / scroll-timeline

A polyfill of ScrollTimeline.
Apache License 2.0
979 stars 95 forks source link

Prevent ViewTimeline from being initialized as ScrollTimeline first #246

Open johannesodland opened 9 months ago

johannesodland commented 9 months ago

ViewTimeline inherits from ScrollTimeline and invokes the ScrollTimeline constructor first during initialization. As a result, the timeline is initialized with document.scrollingElement as the source first, including measuring the source, setting up a scroll listener, ResizeObserver and MutationObserver.

This PR splits initialization of ScrollTimeline and ViewTimeline, preventing source from being initialized multiple times.