File Manager
/*
_ _ _____ _ _
| | | __ \ | | (_)
___ ___ _ __ ___ | | | |__) |_____ _____ __ _| | _ ___
/ __|/ __| '__/ _ \| | | _ // _ \ \ / / _ \/ _` | | | / __|
\__ \ (__| | | (_) | | | | \ \ __/\ V / __/ (_| | |_| \__ \
|___/\___|_| \___/|_|_|_| \_\___| \_/ \___|\__,_|_(_) |___/
_/ |
|__/
"Declarative on-scroll reveal animations."
/*=============================================================================
scrollReveal.js is inspired by cbpScroller.js, © 2014, Codrops.
Licensed under the MIT license.
http://www.opensource.org/licenses/mit-license.php
scrollReveal.js, © 2014 https://twitter.com/julianlloyd
=============================================================================*/
;(function (window) {
'use strict';
var docElem = window.document.documentElement;
function getViewportH () {
var client = docElem['clientHeight'],
inner = window['innerHeight'];
return (client < inner) ? inner : client;
}
function getOffset (el) {
var offsetTop = 0,
offsetLeft = 0;
do {
if (!isNaN(el.offsetTop)) {
offsetTop += el.offsetTop;
}
if (!isNaN(el.offsetLeft)) {
offsetLeft += el.offsetLeft;
}
} while (el = el.offsetParent)
return {
top: offsetTop,
left: offsetLeft
}
}
function isElementInViewport (el, h) {
var scrolled = window.pageYOffset,
viewed = scrolled + getViewportH(),
elH = el.offsetHeight,
elTop = getOffset(el).top,
elBottom = elTop + elH,
h = h || 0;
return (elTop + elH * h) <= viewed && (elBottom) >= scrolled;
}
function extend (a, b) {
for (var key in b) {
if (b.hasOwnProperty(key)) {
a[key] = b[key];
}
}
return a;
}
function scrollReveal(options) {
this.options = extend(this.defaults, options);
this._init();
}
scrollReveal.prototype = {
defaults: {
axis: 'y',
distance: '60px',
duration: '0.55s',
delay: '0.15s',
// if 0, the element is considered in the viewport as soon as it enters
// if 1, the element is considered in the viewport when it's fully visible
viewportFactor: 0.33
},
/*=============================================================================*/
_init: function () {
var self = this;
this.elems = Array.prototype.slice.call(docElem.querySelectorAll('[data-scrollReveal]'));
this.scrolled = false;
// Initialize all scrollreveals, triggering all
// reveals on visible elements.
this.elems.forEach(function (el, i) {
self.animate(el);
});
var scrollHandler = function () {
if (!self.scrolled) {
self.scrolled = true;
setTimeout(function () {
self._scrollPage();
}, 60);
}
};
var resizeHandler = function () {
function delayed() {
self._scrollPage();
self.resizeTimeout = null;
}
if (self.resizeTimeout) {
clearTimeout(self.resizeTimeout);
}
self.resizeTimeout = setTimeout(delayed, 200);
};
window.addEventListener('scroll', scrollHandler, false);
window.addEventListener('resize', resizeHandler, false);
},
/*=============================================================================*/
_scrollPage: function () {
var self = this;
this.elems.forEach(function (el, i) {
if (isElementInViewport(el, self.options.viewportFactor)) {
self.animate(el);
}
});
this.scrolled = false;
},
/*=============================================================================*/
parseLanguage: function (el) {
// Splits on a sequence of one or more commas or spaces.
var words = el.getAttribute('data-scrollreveal').split(/[, ]+/),
enterFrom,
parsed = {};
function filter (words) {
var ret = [],
blacklist = [
"from",
"the",
"and",
"then",
"but"
];
words.forEach(function (word, i) {
if (blacklist.indexOf(word) > -1) {
return;
}
ret.push(word);
});
return ret;
}
words = filter(words);
words.forEach(function (word, i) {
switch (word) {
case "enter":
enterFrom = words[i + 1];
if (enterFrom == "top" || enterFrom == "bottom") {
parsed.axis = "y";
}
if (enterFrom == "left" || enterFrom == "right") {
parsed.axis = "x";
}
return;
case "after":
parsed.delay = words[i + 1];
return;
case "wait":
parsed.delay = words[i + 1];
return;
case "move":
parsed.distance = words[i + 1];
return;
case "over":
parsed.duration = words[i + 1];
return;
case "trigger":
parsed.eventName = words[i + 1];
return;
default:
// Unrecognizable words; do nothing.
return;
}
});
// After all values are parsed, let’s make sure our our
// pixel distance is negative for top and left entrances.
//
// ie. "move 25px from top" starts at 'top: -25px' in CSS.
if (enterFrom == "top" || enterFrom == "left") {
if (!typeof parsed.distance == "undefined") {
parsed.distance = "-" + parsed.distance;
}
else {
parsed.distance = "-" + this.options.distance;
}
}
return parsed;
},
/*=============================================================================*/
genCSS: function (el) {
var parsed = this.parseLanguage(el);
var dist = parsed.distance || this.options.distance,
dur = parsed.duration || this.options.duration,
delay = parsed.delay || this.options.delay,
axis = parsed.axis || this.options.axis;
var transition = "-webkit-transition: all " + dur + " ease " + delay + ";" +
"-moz-transition: all " + dur + " ease " + delay + ";" +
"-o-transition: all " + dur + " ease " + delay + ";" +
"-ms-transition: all " + dur + " ease " + delay + ";" +
"transition: all " + dur + " ease " + delay + ";";
var initial = "-webkit-transform: translate" + axis + "(" + dist + ");" +
"-moz-transform: translate" + axis + "(" + dist + ");" +
"-ms-transform: translate" + axis + "(" + dist + ");" +
"transform: translate" + axis + "(" + dist + ");" +
"opacity: 0;";
var target = "-webkit-transform: translate" + axis + "(0);" +
"-moz-transform: translate" + axis + "(0);" +
"-ms-transform: translate" + axis + "(0);" +
"transform: translate" + axis + "(0);" +
"opacity: 1;";
return {
transition: transition,
initial: initial,
target: target,
totalDuration: ((parseFloat(dur) + parseFloat(delay)) * 1000)
};
},
/*=============================================================================*/
animate: function (el) {
var css = this.genCSS(el);
if (!el.getAttribute('data-sr-init')) {
el.setAttribute('style', css.initial);
el.setAttribute('data-sr-init', true);
}
if (el.getAttribute('data-sr-complete')) {
return;
}
if (isElementInViewport(el, this.options.viewportFactor)) {
el.setAttribute('style', css.target + css.transition);
setTimeout(function () {
el.removeAttribute('style');
el.setAttribute('data-sr-complete', true);
}, css.totalDuration);
}
}
}; // end scrollReveal.prototype
document.addEventListener("DOMContentLoaded", function (evt) {
window.scrollReveal = new scrollReveal();
});
})(window);
File Manager Version 1.0, Coded By Lucas
Email: hehe@yahoo.com