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Refactor post.hbs JS

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This commit is contained in:
Kevin Ansfield 2017-06-19 00:11:32 +01:00
parent 397a096949
commit c97defd40a
1 changed files with 47 additions and 58 deletions
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105
post.hbs
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@ -151,77 +151,66 @@ into the {body} of the default.hbs template --}}
{{!-- The #contentFor helper here will send everything inside it up to the matching #block helper found in default.hbs --}} {{!-- The #contentFor helper here will send everything inside it up to the matching #block helper found in default.hbs --}}
{{#contentFor "scripts"}} {{#contentFor "scripts"}}
<script> <script>
// TODO: SOMEONE PLEASE REFACTOR THIS SHITSHOW? 😭
// Note: Scroll performance is poor in Safari
$(document).ready(function(){
$(function() {
// Start fitVids
var $postContent = $(".post-full-content");
$postContent.fitVids();
// End fitVids
// Start show/hide floating header // NOTE: Scroll performance is poor in Safari
$(window).scroll(function() { // - this appears to be due to the events firing much more slowly in Safari.
var header = $(".floating-header"); // Dropping the scroll event and using only a raf loop results in smoother
var title = $(".post-full-title"); // scrolling but continuous processing even when not scrolling
var trigger = title.offset().top; $(document).ready(function () {
var scroll = $(window).scrollTop(); // Start fitVids
var $postContent = $(".post-full-content");
$postContent.fitVids();
// End fitVids
if (scroll >= trigger + title.height() + 35 ) { var progressBar = document.querySelector('progress');
header.addClass("floating-active"); var header = document.querySelector('.floating-header');
} else { var title = document.querySelector('.post-full-title');
header.removeClass("floating-active");
}
});
// End show/hide floating header
});
// Start scroll-progress bar var lastScrollY = window.scrollY;
// Source: https://codepen.io/pankajparashar/pen/towxF var lastWindowHeight = window.innerHeight;
// Markup: floating-header.hbs var lastDocumentHeight = $(document).height();
var getMax = function(){ var ticking = false;
return $(document).height() - $(window).height();
function onScroll() {
lastScrollY = window.scrollY;
requestTick();
} }
var getValue = function(){ function onResize() {
return $(window).scrollTop(); lastWindowHeight = window.innerHeight;
lastDocumentHeight = $(document).height();
requestTick();
} }
if('max' in document.createElement('progress')){ function requestTick() {
var progressBar = $('progress'); if (!ticking) {
progressBar.attr({ max: getMax() }); requestAnimationFrame(update);
}
$(document).on('scroll', function(){ ticking = true;
progressBar.attr({ value: getValue() });
});
$(window).resize(function(){
progressBar.attr({ max: getMax(), value: getValue() });
});
} }
else {
var progressBar = $('.progress-bar'),
max = getMax(),
value, width;
var getWidth = function(){ function update() {
value = getValue(); var trigger = title.getBoundingClientRect().top + window.scrollY;
width = (value/max) * 100; var triggerOffset = title.offsetHeight + 35;
width = width + '%'; var progressMax = lastDocumentHeight - lastWindowHeight;
return width;
// show/hide floating header
if (lastScrollY >= trigger + triggerOffset) {
header.classList.add('floating-active');
} else {
header.classList.remove('floating-active');
} }
var setWidth = function(){ progressBar.setAttribute('max', progressMax);
progressBar.css({ width: getWidth() }); progressBar.setAttribute('value', lastScrollY);
}
$(document).on('scroll', setWidth); ticking = false;
$(window).on('resize', function(){
max = getMax();
setWidth();
});
} }
// End scroll-progress bar
window.addEventListener('scroll', onScroll, {passive: true});
window.addEventListener('resize', onResize, false);
update();
}); });
</script> </script>
{{/contentFor}} {{/contentFor}}