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Johndev #2

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43816c8
Add js files to demo.
Johnrae Aug 25, 2016
a731f52
Update jquery cdn
Johnrae Aug 25, 2016
9bbb500
Update jquery cdn
Johnrae Aug 25, 2016
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106 changes: 106 additions & 0 deletions demo/hamster-wheel.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,106 @@
/*
*
*
*
* Copyright (c) 2016 Polar Notion
* Licensed under the MIT license.
*/
(function ($) {
$.fn.hamsterWheel = function(options) {
'use strict';

//create all the things
var settings = $.extend({}, $.fn.hamsterWheel.defaults, options),
$div = $(this),
$section = $div.children().first(),
sectionHeight = $section.height(),
height = $div.outerHeight(true),
offset = $div.offset(),
lastScrollTop = 0,
windowHeight = window.innerHeight,
divBottom = Math.round(height + offset.top - window.innerHeight),
scrollSpeed = settings.scrollSpeed,
scrollTimer;

function cloneSections(num) {
for (var i = 0; i < num; i++) {
$section.clone(true).appendTo($div);
}
}

function setHeight() {
height = $div.outerHeight(true);
offset = $div.offset();
divBottom = Math.round(height + offset.top - windowHeight);
}

if ( settings.scrollbar === false ) {
$('body').append('<style>::-webkit-scrollbar{display:none;}</style>');
}

if ( settings.autoscroll ) {
// move timeout call somewhere else maybe? timeout is blowing the stack
var scrollDown = function() {
window.scrollBy(0,1);
scrollTimer = setTimeout(scrollDown, scrollSpeed);
};
var scrollUp = function() {
window.scrollBy(0,-1);
scrollTimer = setTimeout(scrollUp, scrollSpeed);
};
}

if (settings.infinite) {
$(window).scroll(function() {
var st = $(this).scrollTop();
// skip to top or bottom of the page
if ( st > lastScrollTop && st >= divBottom) {
//scrolling down
$(document).scrollTop(offset.top + sectionHeight - windowHeight );
} else if ( st < lastScrollTop && st <= offset.top ) {
//scrolling upgit
$(document).scrollTop(divBottom - sectionHeight + windowHeight);
}
var delta = settings.scrollDelta;
// If you scroll fast enough, change scroll direction
if( Math.abs(lastScrollTop - st) >= delta && Math.abs(lastScrollTop - st) < 200 && settings.autoscroll === true ) {

if ( st > lastScrollTop ) {
//scrolling down
clearTimeout(scrollTimer);
scrollDown();
} else if ( st < lastScrollTop ) {
//scrolling up
clearTimeout(scrollTimer);
scrollUp();
} else {
return false;
}
}
lastScrollTop = st;
});
}

function init(sectionNumber) {
cloneSections(sectionNumber);
if( settings.infinite ){ setHeight(); }
if( settings.autoscroll ){ scrollDown(); }
}

init(settings.clones);
$(window).resize( function(){
setHeight();
});
return this;
};

$.fn.hamsterWheel.defaults = {
autoscroll: true,
infinite: true,
scrollSpeed: 40,
scrollDelta: 15,
clones: 6,
scrollbar: false
};

}(jQuery));
6 changes: 3 additions & 3 deletions demo/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -2,14 +2,14 @@
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Plugin Playground</title>
<title>Hamsterwheel</title>
<meta name="viewport" content="width=device-width, initial-scale=1">

<!-- Load local jQuery. -->
<script src="../bower_components/jquery/dist/jquery.js"></script>
<script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<!-- Load local lib and tests. -->
<script src="../src/hamster-wheel.js"></script>
<script src="./hamster-wheel.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="css/main.css">
</head>
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