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/*
When showing the sticky version warning, the warning will cover the
scroll target when navigating to #id hash locations. Take over scrolling
to adjust the position to account for the height of the warning.
*/
$(() => {
const versionWarning = $('.version-warning')
// Skip if there is no version warning, regular browser behavior is
// fine in that case.
if (versionWarning.length) {
const height = versionWarning.outerHeight(true)
const target = $(':target')
// Adjust position when the initial link has a hash.
if (target.length) {
// Use absolute scrollTo instead of relative scrollBy to avoid
// scrolling when the viewport is already at the bottom of the
// document and has space.
const y = target.offset().top - height
// Delayed because the initial browser scroll doesn't seem to
// happen until after the document ready event, so scrolling
// immediately will be overridden.
setTimeout(() => scrollTo(0, y), 100)
}
// Listen to clicks on hash anchors.
$('a[href^="#"]').on('click', e => {
// Stop default scroll. Also stops the automatic URL hash update.
e.preventDefault()
// Get the id to scroll to and set the URL hash manually.
const id = $(e.currentTarget).attr('href').substring(1)
location.hash = id
// Use getElementById since the hash may have dots in it.
const target = $(document.getElementById(id))
// Scroll to top of target with space for the version warning.
scrollTo(0, target.offset().top - height)
})
}
})
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