mirror of
https://github.com/dillonzq/LoveIt.git
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53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
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var mv_dynamic_to_top = {
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'text': '0',
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'version': '0',
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'min': '200',
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"speed": '300',
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'easing': 'easeInOutExpo',
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'margin': '20',
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};
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jQuery(function($) {
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$.fn.DynamicToTop = function(options) {
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var defaults = {
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text: mv_dynamic_to_top.text,
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min: parseInt(mv_dynamic_to_top.min, 10),
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fade_in: 600,
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fade_out: 400,
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speed: parseInt(mv_dynamic_to_top.speed, 10),
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easing: mv_dynamic_to_top.easing,
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version: mv_dynamic_to_top.version,
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id: 'dynamic-to-top',
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},
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settings = $.extend(defaults, options);
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if (settings.version === '' || settings.version === '0') {
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settings.text = '<span> </span>';
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}
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if (!$.isFunction(settings.easing)) {
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settings.easing = 'linear';
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}
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var $toTop = $('<a href=\"#\" id=\"' + settings.id + '\"></a>').html(settings.text);
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$toTop.hide().appendTo('body').click(function() {
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$('html, body').stop().animate({
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scrollTop: 0
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}, settings.speed, settings.easing);
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return false;
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});
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$(window).scroll(function() {
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var sd = $(window).scrollTop();
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if (typeof document.body.style.maxHeight === 'undefined') {
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$toTop.css({
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'position': 'absolute',
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'top': sd + $(window).height() - mv_dynamic_to_top.margin
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});
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}
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if (sd > settings.min) {
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$toTop.fadeIn(settings.fade_in);
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} else {
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$toTop.fadeOut(settings.fade_out);
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}
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});
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};
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$('body').DynamicToTop();
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});
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