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//Title: Custom DropDown plugin by PC |
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//Documentation: http://designwithpc.com/Plugins/ddslick |
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//Author: PC |
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//Website: http://designwithpc.com |
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//Twitter: http://twitter.com/chaudharyp |
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|
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(function ($) { |
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|
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$.fn.ddslick = function (method) { |
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if (methods[method]) { |
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return methods[method].apply(this, Array.prototype.slice.call(arguments, 1)); |
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} else if (typeof method === 'object' || !method) { |
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return methods.init.apply(this, arguments); |
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} else { |
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$.error('Method ' + method + ' does not exists.'); |
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} |
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}; |
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|
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var methods = {}, |
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|
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//Set defauls for the control |
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defaults = { |
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data: [], |
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keepJSONItemsOnTop: false, |
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width: 260, |
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height: null, |
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background: "#eee", |
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selectText: "", |
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defaultSelectedIndex: null, |
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truncateDescription: true, |
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imagePosition: "left", |
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showSelectedHTML: true, |
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clickOffToClose: true, |
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embedCSS: true, |
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onSelected: function () { } |
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}, |
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|
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ddSelectHtml = '<div class="dd-select"><input class="dd-selected-value" type="hidden" /><a class="dd-selected"></a><span class="dd-pointer dd-pointer-down"></span></div>', |
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ddOptionsHtml = '<ul class="dd-options"></ul>', |
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|
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//CSS for ddSlick |
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ddslickCSS = '<style id="css-ddslick" type="text/css">' + |
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'.dd-select{ border-radius:2px; border:solid 1px #ccc; position:relative; cursor:pointer;}' + |
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'.dd-desc { color:#aaa; display:block; overflow: hidden; font-weight:normal; line-height: 1.4em; }' + |
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'.dd-selected{ overflow:hidden; display:block; padding:10px; font-weight:bold;}' + |
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'.dd-pointer{ width:0; height:0; position:absolute; right:10px; top:50%; margin-top:-3px;}' + |
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'.dd-pointer-down{ border:solid 5px transparent; border-top:solid 5px #000; }' + |
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'.dd-pointer-up{border:solid 5px transparent !important; border-bottom:solid 5px #000 !important; margin-top:-8px;}' + |
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'.dd-options{ border:solid 1px #ccc; border-top:none; list-style:none; box-shadow:0px 1px 5px #ddd; display:none; position:absolute; z-index:2000; margin:0; padding:0;background:#fff; overflow:auto;}' + |
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'.dd-option{ padding:10px; display:block; border-bottom:solid 1px #ddd; overflow:hidden; text-decoration:none; color:#333; cursor:pointer;-webkit-transition: all 0.25s ease-in-out; -moz-transition: all 0.25s ease-in-out;-o-transition: all 0.25s ease-in-out;-ms-transition: all 0.25s ease-in-out; }' + |
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'.dd-options > li:last-child > .dd-option{ border-bottom:none;}' + |
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'.dd-option:hover{ background:#f3f3f3; color:#000;}' + |
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'.dd-selected-description-truncated { text-overflow: ellipsis; white-space:nowrap; }' + |
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'.dd-option-selected { background:#f6f6f6; }' + |
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'.dd-option-image, .dd-selected-image { vertical-align:middle; float:left; margin-right:5px; max-width:64px;}' + |
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'.dd-image-right { float:right; margin-right:15px; margin-left:5px;}' + |
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'.dd-container{ position:relative;} .dd-selected-text { font-weight:bold}</style>'; |
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|
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//Public methods |
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methods.init = function (userOptions) { |
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//Preserve the original defaults by passing an empty object as the target |
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//The object is used to get global flags like embedCSS. |
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var options = $.extend({}, defaults, userOptions); |
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|
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//CSS styles are only added once. |
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if ($('#css-ddslick').length <= 0 && options.embedCSS) { |
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$(ddslickCSS).appendTo('head'); |
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} |
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|
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//Apply on all selected elements |
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return this.each(function () { |
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//Preserve the original defaults by passing an empty object as the target |
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//The object is used to save drop-down's corresponding settings and data. |
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var options = $.extend({}, defaults, userOptions); |
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|
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var obj = $(this), |
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data = obj.data('ddslick'); |
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//If the plugin has not been initialized yet |
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if (!data) { |
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|
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var ddSelect = [], ddJson = options.data; |
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|
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//Get data from HTML select options |
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obj.find('option').each(function () { |
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var $this = $(this), thisData = $this.data(); |
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ddSelect.push({ |
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text: $.trim($this.text()), |
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value: $this.val(), |
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selected: $this.is(':selected'), |
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description: thisData.description, |
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imageSrc: thisData.imagesrc //keep it lowercase for HTML5 data-attributes |
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}); |
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}); |
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|
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//Update Plugin data merging both HTML select data and JSON data for the dropdown |
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if (options.keepJSONItemsOnTop) |
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$.merge(options.data, ddSelect); |
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else options.data = $.merge(ddSelect, options.data); |
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|
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//Replace HTML select with empty placeholder, keep the original |
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var original = obj, placeholder = $('<div').attr('id', obj.attr('id') + '-dd-placeholder'); |
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obj.replaceWith(placeholder); |
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obj = placeholder; |
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|
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//Add classes and append ddSelectHtml & ddOptionsHtml to the container |
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obj.addClass('dd-container').append(ddSelectHtml).append(ddOptionsHtml); |
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|
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// Inherit name attribute from original element |
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obj.find("input.dd-selected-value") |
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.attr("id", $(original).attr("id")) |
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.attr("name", $(original).attr("name")); |
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|
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//Get newly created ddOptions and ddSelect to manipulate |
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var ddSelect = obj.find('.dd-select'), |
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ddOptions = obj.find('.dd-options'); |
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|
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//Set widths |
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ddOptions.css({ width: options.width }); |
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ddSelect.css({ width: options.width, background: options.background }); |
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obj.css({ width: options.width }); |
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|
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//Set height |
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if (options.height != null) |
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ddOptions.css({ height: options.height, overflow: 'auto' }); |
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|
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//Add ddOptions to the container. Replace with template engine later. |
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$.each(options.data, function (index, item) { |
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if (item.selected) options.defaultSelectedIndex = index; |
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ddOptions.append('<li>' + |
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'<a class="dd-option">' + |
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(item.value ? ' <input class="dd-option-value" type="hidden" value="' + item.value + '" />' : '') + |
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(item.imageSrc ? ' <img class="dd-option-image' + (options.imagePosition == "right" ? ' dd-image-right' : '') + '" src="' + item.imageSrc + '" />' : '') + |
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(item.text ? ' <label class="dd-option-text">' + item.text + '</label>' : '') + |
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(item.description ? ' <small class="dd-option-description dd-desc">' + item.description + '</small>' : '') + |
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'</a>' + |
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'</li>'); |
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}); |
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|
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//Save plugin data. |
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var pluginData = { |
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settings: options, |
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original: original, |
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selectedIndex: -1, |
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selectedItem: null, |
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selectedData: null |
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} |
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obj.data('ddslick', pluginData); |
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|
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//Check if needs to show the select text, otherwise show selected or default selection |
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if (options.selectText.length > 0 && options.defaultSelectedIndex == null) { |
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obj.find('.dd-selected').html(options.selectText); |
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} |
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else { |
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var index = (options.defaultSelectedIndex != null && options.defaultSelectedIndex >= 0 && options.defaultSelectedIndex < options.data.length) |
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? options.defaultSelectedIndex |
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: 0; |
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selectIndex(obj, index); |
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} |
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|
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//EVENTS |
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//Displaying options |
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obj.find('.dd-select').on('click.ddslick', function () { |
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open(obj); |
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}); |
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|
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//Selecting an option |
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obj.find('.dd-option').on('click.ddslick', function () { |
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selectIndex(obj, $(this).closest('li').index()); |
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}); |
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|
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//Click anywhere to close |
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if (options.clickOffToClose) { |
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ddOptions.addClass('dd-click-off-close'); |
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obj.on('click.ddslick', function (e) { e.stopPropagation(); }); |
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$('body').on('click', function () { |
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$('.dd-open').removeClass('dd-open'); |
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$('.dd-click-off-close').slideUp(50).siblings('.dd-select').find('.dd-pointer').removeClass('dd-pointer-up'); |
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}); |
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} |
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} |
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}); |
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}; |
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|
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//Public method to select an option by its index |
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methods.select = function (options) { |
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return this.each(function () { |
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if (options.index!==undefined) |
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selectIndex($(this), options.index); |
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if (options.id) |
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selectId($(this), options.id); |
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}); |
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} |
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|
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//Public method to open drop down |
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methods.open = function () { |
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return this.each(function () { |
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var $this = $(this), |
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pluginData = $this.data('ddslick'); |
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|
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//Check if plugin is initialized |
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if (pluginData) |
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open($this); |
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}); |
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}; |
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|
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//Public method to close drop down |
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methods.close = function () { |
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return this.each(function () { |
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var $this = $(this), |
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pluginData = $this.data('ddslick'); |
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|
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//Check if plugin is initialized |
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if (pluginData) |
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close($this); |
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}); |
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}; |
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|
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//Public method to destroy. Unbind all events and restore the original Html select/options |
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methods.destroy = function () { |
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return this.each(function () { |
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var $this = $(this), |
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pluginData = $this.data('ddslick'); |
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|
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//Check if already destroyed |
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if (pluginData) { |
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var originalElement = pluginData.original; |
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$this.removeData('ddslick').unbind('.ddslick').replaceWith(originalElement); |
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} |
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}); |
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} |
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|
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//Private: Select id |
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function selectId(obj, id) { |
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|
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var index = obj.find(".dd-option-value[value= '" + id + "']").parents("li").prevAll().length; |
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selectIndex(obj, index); |
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|
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} |
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|
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//Private: Select index |
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function selectIndex(obj, index) { |
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|
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//Get plugin data |
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var pluginData = obj.data('ddslick'); |
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|
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//Get required elements |
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var ddSelected = obj.find('.dd-selected'), |
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ddSelectedValue = ddSelected.siblings('.dd-selected-value'), |
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ddOptions = obj.find('.dd-options'), |
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ddPointer = ddSelected.siblings('.dd-pointer'), |
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selectedOption = obj.find('.dd-option').eq(index), |
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selectedLiItem = selectedOption.closest('li'), |
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settings = pluginData.settings, |
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selectedData = pluginData.settings.data[index]; |
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|
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//Highlight selected option |
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obj.find('.dd-option').removeClass('dd-option-selected'); |
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selectedOption.addClass('dd-option-selected'); |
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|
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//Update or Set plugin data with new selection |
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pluginData.selectedIndex = index; |
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pluginData.selectedItem = selectedLiItem; |
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pluginData.selectedData = selectedData; |
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|
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//If set to display to full html, add html |
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if (settings.showSelectedHTML) { |
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ddSelected.html( |
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(selectedData.imageSrc ? '<img class="dd-selected-image' + (settings.imagePosition == "right" ? ' dd-image-right' : '') + '" src="' + selectedData.imageSrc + '" />' : '') + |
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(selectedData.text ? '<label class="dd-selected-text">' + selectedData.text + '</label>' : '') + |
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(selectedData.description ? '<small class="dd-selected-description dd-desc' + (settings.truncateDescription ? ' dd-selected-description-truncated' : '') + '" >' + selectedData.description + '</small>' : '') |
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); |
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|
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} |
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//Else only display text as selection |
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else ddSelected.html(selectedData.text); |
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|
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//Updating selected option value |
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ddSelectedValue.val(selectedData.value); |
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|
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//BONUS! Update the original element attribute with the new selection |
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pluginData.original.val(selectedData.value); |
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obj.data('ddslick', pluginData); |
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|
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//Close options on selection |
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close(obj); |
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|
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//Adjust appearence for selected option |
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adjustSelectedHeight(obj); |
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|
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//Callback function on selection |
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if (typeof settings.onSelected == 'function') { |
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settings.onSelected.call(this, pluginData); |
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} |
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} |
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|
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//Private: Close the drop down options |
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function open(obj) { |
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|
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var $this = obj.find('.dd-select'), |
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ddOptions = $this.siblings('.dd-options'), |
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ddPointer = $this.find('.dd-pointer'), |
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wasOpen = ddOptions.is(':visible'); |
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|
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//Close all open options (multiple plugins) on the page |
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$('.dd-click-off-close').not(ddOptions).slideUp(50); |
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$('.dd-pointer').removeClass('dd-pointer-up'); |
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$this.removeClass('dd-open'); |
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|
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if (wasOpen) { |
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ddOptions.slideUp('fast'); |
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ddPointer.removeClass('dd-pointer-up'); |
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$this.removeClass('dd-open'); |
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} |
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else { |
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$this.addClass('dd-open'); |
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ddOptions.slideDown('fast'); |
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ddPointer.addClass('dd-pointer-up'); |
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} |
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|
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//Fix text height (i.e. display title in center), if there is no description |
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adjustOptionsHeight(obj); |
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} |
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|
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//Private: Close the drop down options |
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function close(obj) { |
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//Close drop down and adjust pointer direction |
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obj.find('.dd-select').removeClass('dd-open'); |
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obj.find('.dd-options').slideUp(50); |
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obj.find('.dd-pointer').removeClass('dd-pointer-up').removeClass('dd-pointer-up'); |
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} |
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|
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//Private: Adjust appearence for selected option (move title to middle), when no desripction |
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function adjustSelectedHeight(obj) { |
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|
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//Get height of dd-selected |
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var lSHeight = obj.find('.dd-select').css('height'); |
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|
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//Check if there is selected description |
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var descriptionSelected = obj.find('.dd-selected-description'); |
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var imgSelected = obj.find('.dd-selected-image'); |
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if (descriptionSelected.length <= 0 && imgSelected.length > 0) { |
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obj.find('.dd-selected-text').css('lineHeight', lSHeight); |
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} |
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} |
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|
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//Private: Adjust appearence for drop down options (move title to middle), when no desripction |
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function adjustOptionsHeight(obj) { |
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obj.find('.dd-option').each(function () { |
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var $this = $(this); |
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var lOHeight = $this.css('height'); |
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var descriptionOption = $this.find('.dd-option-description'); |
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var imgOption = obj.find('.dd-option-image'); |
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if (descriptionOption.length <= 0 && imgOption.length > 0) { |
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$this.find('.dd-option-text').css('lineHeight', lOHeight); |
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} |
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}); |
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} |
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|
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})(jQuery); |
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|
