JQuery Scroll to Next Section
Question
Can someone please help?
I seem to have two issues:
- page isn't scrolling and
- when trigger-scroll clicked 3x, .top is undefined.
.hero-banner is a full screen slideshow. When .trigger-scroll is clicked, page needs to scroll to sections.scroll-here. When reached last section needs to scroll to top.
Thanks in advance for your answers.
HTML:
<section class="hero-banner">full screen section</section>
<div class="trigger-scroll"></div>
<section class="scroll-here" id="first-section">some content</section>
<section class="scroll-here" id="second-section">some content</section>
<section class="scroll-here" id="third-section">some content</section>
JS:
$(document).ready(function() {
$('.page-scroller', function() {
var $scrollSection = $('.scroll-here')
var $scrollTrigger = $('.trigger-scroll')
var nextSection = 0;
$scrollTrigger.on( 'click', function() {
$(this).removeClass('go-to-top');
// If at last section, scroll back to top on next click:
if (nextSection >= $scrollSection.length) {
$('html, body').animate({ scrollTop: 0 }, 1000);
nextSection = 0;
return;
}
// If you've already scrolled down and then click button, run a check
// to find next section position so you don't go backwards:
while ( $('body').scrollTop() > $($scrollSection[nextSection]).offset().top ) {
nextSection++;
}
// If next section is the last, add class to rotate arrow graphic:
if (nextSection === ($scrollSection.length - 1)) {
$(this).addClass('go-to-top');
}
// Move to next section and increment counter check:
$( 'html, body' ).animate({ scrollTop: $($scrollSection[nextSection]).offset().top }, 1000);
nextSection++;
});
});
});
1 answers
solution1
0 2014-08-22 00:36:15
After a few hours trying to figure out why <scrollTop> wasn't working, I found that <body> tag had a css style of <height:100%;> which was messing up the <offset> . Alex thanks for your help. For others, here is a working JSFiddle Link
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