+++ /dev/null
-/*!
- * Readmore.js jQuery plugin
- * Author: @jed_foster
- * Project home: jedfoster.github.io/Readmore.js
- * Licensed under the MIT license
- */
-
-;(function($) {
-
- var readmore = 'readmore',
- defaults = {
- speed: 100,
- maxHeight: 200,
- heightMargin: 16,
- moreLink: '<a href="#">Read More</a>',
- lessLink: '<a href="#">Close</a>',
- embedCSS: true,
- sectionCSS: 'display: block; width: 100%;',
- startOpen: false,
- expandedClass: 'readmore-js-expanded',
- collapsedClass: 'readmore-js-collapsed',
-
- // callbacks
- beforeToggle: function(){},
- afterToggle: function(){}
- },
- cssEmbedded = false;
-
- function Readmore( element, options ) {
- this.element = element;
-
- this.options = $.extend( {}, defaults, options);
-
- $(this.element).data('max-height', this.options.maxHeight);
- $(this.element).data('height-margin', this.options.heightMargin);
-
- delete(this.options.maxHeight);
-
- if(this.options.embedCSS && ! cssEmbedded) {
- var styles = '.readmore-js-toggle, .readmore-js-section { ' + this.options.sectionCSS + ' } .readmore-js-section { overflow: hidden; }';
-
- (function(d,u) {
- var css=d.createElement('style');
- css.type = 'text/css';
- if(css.styleSheet) {
- css.styleSheet.cssText = u;
- }
- else {
- css.appendChild(d.createTextNode(u));
- }
- d.getElementsByTagName('head')[0].appendChild(css);
- }(document, styles));
-
- cssEmbedded = true;
- }
-
- this._defaults = defaults;
- this._name = readmore;
-
- this.init();
- }
-
- Readmore.prototype = {
-
- init: function() {
- var $this = this;
-
- $(this.element).each(function() {
- var current = $(this),
- maxHeight = (current.css('max-height').replace(/[^-\d\.]/g, '') > current.data('max-height')) ? current.css('max-height').replace(/[^-\d\.]/g, '') : current.data('max-height'),
- heightMargin = current.data('height-margin');
-
- if(current.css('max-height') != 'none') {
- current.css('max-height', 'none');
- }
-
- $this.setBoxHeight(current);
-
- if(current.outerHeight(true) <= maxHeight + heightMargin) {
- // The block is shorter than the limit, so there's no need to truncate it.
- return true;
- }
- else {
- current.addClass('readmore-js-section ' + $this.options.collapsedClass).data('collapsedHeight', maxHeight);
-
- var useLink = $this.options.startOpen ? $this.options.lessLink : $this.options.moreLink;
- current.after($(useLink).on('click', function(event) { $this.toggleSlider(this, current, event) }).addClass('readmore-js-toggle'));
-
- if(!$this.options.startOpen) {
- current.css({height: maxHeight});
- }
- }
- });
-
- $(window).on('resize', function(event) {
- $this.resizeBoxes();
- });
- },
-
- toggleSlider: function(trigger, element, event)
- {
- event.preventDefault();
-
- var $this = this,
- newHeight = newLink = sectionClass = '',
- expanded = false,
- collapsedHeight = $(element).data('collapsedHeight');
-
- if ($(element).height() <= collapsedHeight) {
- newHeight = $(element).data('expandedHeight') + 'px';
- newLink = 'lessLink';
- expanded = true;
- sectionClass = $this.options.expandedClass;
- }
-
- else {
- newHeight = collapsedHeight;
- newLink = 'moreLink';
- sectionClass = $this.options.collapsedClass;
- }
-
- // Fire beforeToggle callback
- $this.options.beforeToggle(trigger, element, expanded);
-
- $(element).animate({'height': newHeight}, {duration: $this.options.speed, complete: function() {
- // Fire afterToggle callback
- $this.options.afterToggle(trigger, element, expanded);
-
- $(trigger).replaceWith($($this.options[newLink]).on('click', function(event) { $this.toggleSlider(this, element, event) }).addClass('readmore-js-toggle'));
-
- $(this).removeClass($this.options.collapsedClass + ' ' + $this.options.expandedClass).addClass(sectionClass);
- }
- });
- },
-
- setBoxHeight: function(element) {
- var el = element.clone().css({'height': 'auto', 'width': element.width(), 'overflow': 'hidden'}).insertAfter(element),
- height = el.outerHeight(true);
-
- el.remove();
-
- element.data('expandedHeight', height);
- },
-
- resizeBoxes: function() {
- var $this = this;
-
- $('.readmore-js-section').each(function() {
- var current = $(this);
-
- $this.setBoxHeight(current);
-
- if(current.height() > current.data('expandedHeight') || (current.hasClass($this.options.expandedClass) && current.height() < current.data('expandedHeight')) ) {
- current.css('height', current.data('expandedHeight'));
- }
- });
- },
-
- destroy: function() {
- var $this = this;
-
- $(this.element).each(function() {
- var current = $(this);
-
- current.removeClass('readmore-js-section ' + $this.options.collapsedClass + ' ' + $this.options.expandedClass).css({'max-height': '', 'height': 'auto'}).next('.readmore-js-toggle').remove();
-
- current.removeData();
- });
- }
- };
-
- $.fn[readmore] = function( options ) {
- var args = arguments;
- if (options === undefined || typeof options === 'object') {
- return this.each(function () {
- if ($.data(this, 'plugin_' + readmore)) {
- var instance = $.data(this, 'plugin_' + readmore);
- instance['destroy'].apply(instance);
- }
-
- $.data(this, 'plugin_' + readmore, new Readmore( this, options ));
- });
- } else if (typeof options === 'string' && options[0] !== '_' && options !== 'init') {
- return this.each(function () {
- var instance = $.data(this, 'plugin_' + readmore);
- if (instance instanceof Readmore && typeof instance[options] === 'function') {
- instance[options].apply( instance, Array.prototype.slice.call( args, 1 ) );
- }
- });
- }
- }
-})(jQuery);
\ No newline at end of file
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