metamaps--metamaps/app/assets/javascripts/librariesForAllPages/jquery.textillate.js

262 lines
6.9 KiB
JavaScript

/*
* textillate.js
* http://jschr.github.com/textillate
* MIT licensed
*
* Copyright (C) 2012-2013 Jordan Schroter
*/
(function ($) {
"use strict";
function isInEffect (effect) {
return /In/.test(effect) || $.inArray(effect, $.fn.textillate.defaults.inEffects) >= 0;
};
function isOutEffect (effect) {
return /Out/.test(effect) || $.inArray(effect, $.fn.textillate.defaults.outEffects) >= 0;
};
// custom get data api method
function getData (node) {
var attrs = node.attributes || []
, data = {};
if (!attrs.length) return data;
$.each(attrs, function (i, attr) {
if (/^data-in-*/.test(attr.nodeName)) {
data.in = data.in || {};
data.in[attr.nodeName.replace(/data-in-/, '')] = attr.nodeValue;
} else if (/^data-out-*/.test(attr.nodeName)) {
data.out = data.out || {};
data.out[attr.nodeName.replace(/data-out-/, '')] = attr.nodeValue;
} else if (/^data-*/.test(attr.nodeName)) {
data[attr.nodeName] = attr.nodeValue;
}
})
return data;
}
function shuffle (o) {
for (var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
}
function animate ($c, effect, cb) {
$c.addClass('animated ' + effect)
.css('visibility', 'visible')
.show();
$c.one('animationend webkitAnimationEnd oAnimationEnd', function () {
$c.removeClass('animated ' + effect);
cb && cb();
});
}
function animateChars ($chars, options, cb) {
var that = this
, count = $chars.length;
if (!count) {
cb && cb();
return;
}
if (options.shuffle) $chars = shuffle($chars);
if (options.reverse) $chars = $chars.toArray().reverse();
$.each($chars, function (i, c) {
var $char = $(c);
function complete () {
if (isInEffect(options.effect)) {
$char.css('visibility', 'visible');
} else if (isOutEffect(options.effect)) {
$char.css('visibility', 'hidden');
}
count -= 1;
if (!count && cb) cb();
}
var delay = options.sync ? options.delay : options.delay * i * options.delayScale;
$char.text() ?
setTimeout(function () { animate($char, options.effect, complete) }, delay) :
complete();
});
};
var Textillate = function (element, options) {
var base = this
, $element = $(element);
base.init = function () {
base.$texts = $element.find(options.selector);
if (!base.$texts.length) {
base.$texts = $('<ul class="texts"><li>' + $element.html() + '</li></ul>');
$element.html(base.$texts);
}
base.$texts.hide();
base.$current = $('<span>')
.text(base.$texts.find(':first-child').html())
.prependTo($element);
if (isInEffect(options.effect)) {
base.$current.css('visibility', 'hidden');
} else if (isOutEffect(options.effect)) {
base.$current.css('visibility', 'visible');
}
base.setOptions(options);
setTimeout(function () {
base.options.autoStart && base.start();
}, base.options.initialDelay)
};
base.setOptions = function (options) {
base.options = options;
};
base.triggerEvent = function (name) {
var e = $.Event(name + '.tlt', { data: base });
$element.trigger(e);
return e;
};
base.in = function (index, cb) {
index = index || 0;
var $elem = base.$texts.find(':nth-child(' + (index + 1) + ')')
, options = $.extend({}, base.options, getData($elem))
, $chars;
base.triggerEvent('inAnimationBegin');
base.$current
.text($elem.html())
.lettering('words');
base.$current.find('[class^="word"]')
.css({
'display': 'inline-block',
// fix for poor ios performance
'-webkit-transform': 'translate3d(0,0,0)',
'-moz-transform': 'translate3d(0,0,0)',
'-o-transform': 'translate3d(0,0,0)',
'transform': 'translate3d(0,0,0)'
})
.each(function () { $(this).lettering() });
$chars = base.$current
.find('[class^="char"]')
.css('display', 'inline-block');
if (isInEffect(options.in.effect)) {
$chars.css('visibility', 'hidden');
} else if (isOutEffect(options.in.effect)) {
$chars.css('visibility', 'visible');
}
base.currentIndex = index;
animateChars($chars, options.in, function () {
base.triggerEvent('inAnimationEnd');
if (options.in.callback) options.in.callback();
if (cb) cb(base);
});
};
base.out = function (cb) {
var $elem = base.$texts.find(':nth-child(' + (base.currentIndex + 1) + ')')
, $chars = base.$current.find('[class^="char"]')
, options = $.extend({}, base.options, getData($elem));
base.triggerEvent('outAnimationBegin');
animateChars($chars, options.out, function () {
base.triggerEvent('outAnimationEnd');
if (options.out.callback) options.out.callback();
if (cb) cb(base);
});
};
base.start = function (index) {
base.triggerEvent('start');
(function run (index) {
base.in(index, function () {
var length = base.$texts.children().length;
index += 1;
if (!base.options.loop && index >= length) {
if (base.options.callback) base.options.callback();
base.triggerEvent('end');
} else {
index = index % length;
setTimeout(function () {
base.out(function () {
run(index)
});
}, base.options.minDisplayTime);
}
});
}(index || 0));
};
base.init();
}
$.fn.textillate = function (settings, args) {
return this.each(function () {
var $this = $(this)
, data = $this.data('textillate')
, options = $.extend(true, {}, $.fn.textillate.defaults, getData(this), typeof settings == 'object' && settings);
if (!data) {
$this.data('textillate', (data = new Textillate(this, options)));
} else if (typeof settings == 'string') {
data[settings].apply(data, [].concat(args));
} else {
data.setOptions.call(data, options);
}
})
};
$.fn.textillate.defaults = {
selector: '.texts',
loop: false,
minDisplayTime: 2000,
initialDelay: 0,
in: {
effect: 'fadeInLeftBig',
delayScale: 1.5,
delay: 50,
sync: false,
reverse: false,
shuffle: false,
callback: function () {}
},
out: {
effect: 'hinge',
delayScale: 1.5,
delay: 50,
sync: false,
reverse: false,
shuffle: false,
callback: function () {}
},
autoStart: true,
inEffects: [],
outEffects: [ 'hinge' ],
callback: function () {}
};
}(jQuery));