413 lines
16 KiB
JavaScript
413 lines
16 KiB
JavaScript
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!function($) {
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var Selectpicker = function(element, options, e) {
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if (e ) {
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e.stopPropagation();
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e.preventDefault();
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}
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this.$element = $(element);
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this.$newElement = null;
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this.button = null;
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//Merge defaults, options and data-attributes to make our options
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this.options = $.extend({}, $.fn.selectpicker.defaults, this.$element.data(), typeof options == 'object' && options);
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//If we have no title yet, check the attribute 'title' (this is missed by jq as its not a data-attribute
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if(this.options.title==null)
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this.options.title = this.$element.attr('title');
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//Expose public methods
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this.val = Selectpicker.prototype.val;
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this.render = Selectpicker.prototype.render;
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this.init();
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};
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Selectpicker.prototype = {
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constructor: Selectpicker,
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init: function (e) {
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var _this = this;
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this.$element.hide();
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this.multiple = this.$element.prop('multiple');
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var classList = this.$element.attr('class') !== undefined ? this.$element.attr('class').split(/\s+/) : '';
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var id = this.$element.attr('id');
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this.$element.after( this.createView() );
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this.$newElement = this.$element.next('.select');
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var select = this.$newElement;
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var menu = this.$newElement.find('.dropdown-menu');
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var menuArrow = this.$newElement.find('.dropdown-arrow');
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var menuA = menu.find('li > a');
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var liHeight = select.addClass('open').find('.dropdown-menu li > a').outerHeight();
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select.removeClass('open');
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var divHeight = menu.find('li .divider').outerHeight(true);
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var selectOffset_top = this.$newElement.offset().top;
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var size = 0;
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var menuHeight = 0;
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var selectHeight = this.$newElement.outerHeight();
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this.button = this.$newElement.find('> button');
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if (id !== undefined) {
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this.button.attr('id', id);
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$('label[for="' + id + '"]').click(function(){ select.find('button#'+id).focus(); })
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}
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for (var i = 0; i < classList.length; i++) {
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if(classList[i] != 'selectpicker') {
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this.$newElement.addClass(classList[i]);
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}
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}
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//If we are multiple, then add the show-tick class by default
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if(this.multiple) {
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this.$newElement.addClass('select-multiple');
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}
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this.button.addClass(this.options.style);
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menu.addClass(this.options.menuStyle);
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menuArrow.addClass(function() {
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if (_this.options.menuStyle) {
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return _this.options.menuStyle.replace('dropdown-', 'dropdown-arrow-');
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}
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});
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this.checkDisabled();
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this.checkTabIndex();
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this.clickListener();
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var menuPadding = parseInt(menu.css('padding-top')) + parseInt(menu.css('padding-bottom')) + parseInt(menu.css('border-top-width')) + parseInt(menu.css('border-bottom-width'));
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if (this.options.size == 'auto') {
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function getSize() {
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var selectOffset_top_scroll = selectOffset_top - $(window).scrollTop();
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var windowHeight = $(window).innerHeight;
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var menuExtras = menuPadding + parseInt(menu.css('margin-top')) + parseInt(menu.css('margin-bottom')) + 2;
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var selectOffset_bot = windowHeight - selectOffset_top_scroll - selectHeight - menuExtras;
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menuHeight = selectOffset_bot;
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if (select.hasClass('dropup')) {
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menuHeight = selectOffset_top_scroll - menuExtras;
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}
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menu.css({'max-height' : menuHeight + 'px', 'overflow-y' : 'auto', 'min-height' : liHeight*3 + 'px'});
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}
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getSize();
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$(window).resize(getSize);
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$(window).scroll(getSize);
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this.$element.bind('DOMNodeInserted', getSize);
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} else if (this.options.size && this.options.size != 'auto' && menu.find('li').length > this.options.size) {
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var optIndex = menu.find("li > *").filter(':not(.divider)').slice(0,this.options.size).last().parent().index();
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var divLength = menu.find("li").slice(0,optIndex + 1).find('.divider').length;
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menuHeight = liHeight*this.options.size + divLength*divHeight + menuPadding;
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menu.css({'max-height' : menuHeight + 'px', 'overflow-y' : 'scroll'});
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}
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//Listen for updates to the DOM and re render...
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this.$element.bind('DOMNodeInserted', $.proxy(this.reloadLi, this));
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this.render();
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},
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createDropdown: function() {
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var drop =
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"<div class='btn-group select'>" +
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"<button class='btn dropdown-toggle clearfix' data-toggle='dropdown'>" +
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"<span class='filter-option pull-left'></span> " +
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"<span class='caret'></span>" +
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"</button>" +
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"<span class='dropdown-arrow'></span>" +
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"<ul class='dropdown-menu' role='menu'>" +
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"</ul>" +
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"</div>";
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return $(drop);
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},
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createView: function() {
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var $drop = this.createDropdown();
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var $li = this.createLi();
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$drop.find('ul').append($li);
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return $drop;
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},
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reloadLi: function() {
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//Remove all children.
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this.destroyLi();
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//Re build
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$li = this.createLi();
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this.$newElement.find('ul').append( $li );
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//render view
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this.render();
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},
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destroyLi:function() {
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this.$newElement.find('li').remove();
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},
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createLi: function() {
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var _this = this;
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var _li = [];
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var _liA = [];
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var _liHtml = '';
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this.$element.find('option').each(function(){
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_li.push($(this).text());
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});
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this.$element.find('option').each(function(index) {
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//Get the class and text for the option
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var optionClass = $(this).attr("class") !== undefined ? $(this).attr("class") : '';
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var text = $(this).text();
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var subtext = $(this).data('subtext') !== undefined ? '<small class="muted">'+$(this).data('subtext')+'</small>' : '';
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//Append any subtext to the main text.
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text+=subtext;
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if ($(this).parent().is('optgroup') && $(this).data('divider') != true) {
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if ($(this).index() == 0) {
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//Get the opt group label
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var label = $(this).parent().attr('label');
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var labelSubtext = $(this).parent().data('subtext') !== undefined ? '<small class="muted">'+$(this).parent().data('subtext')+'</small>' : '';
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label += labelSubtext;
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if ($(this)[0].index != 0) {
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_liA.push(
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'<div class="divider"></div>'+
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'<dt>'+label+'</dt>'+
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_this.createA(text, "opt " + optionClass )
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);
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} else {
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_liA.push(
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'<dt>'+label+'</dt>'+
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_this.createA(text, "opt " + optionClass ));
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}
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} else {
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_liA.push( _this.createA(text, "opt " + optionClass ) );
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}
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} else if ($(this).data('divider') == true) {
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_liA.push('<div class="divider"></div>');
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} else {
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_liA.push( _this.createA(text, optionClass ) );
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}
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});
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if (_li.length > 0) {
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for (var i = 0; i < _li.length; i++) {
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var $option = this.$element.find('option').eq(i);
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_liHtml += "<li rel=" + i + ">" + _liA[i] + "</li>";
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}
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}
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//If we dont have a selected item, and we dont have a title, select the first element so something is set in the button
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if(this.$element.find('option:selected').length==0 && !_this.options.title) {
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this.$element.find('option').eq(0).prop('selected', true).attr('selected', 'selected');
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}
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return $(_liHtml);
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},
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createA:function(test, classes) {
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return '<a tabindex="-1" href="#" class="'+classes+'">' +
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'<span class="pull-left">' + test + '</span>' +
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'</a>';
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},
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render:function() {
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var _this = this;
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//Set width of select
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if (this.options.width == 'auto') {
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var ulWidth = this.$newElement.find('.dropdown-menu').css('width');
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this.$newElement.css('width',ulWidth);
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} else if (this.options.width && this.options.width != 'auto') {
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this.$newElement.css('width',this.options.width);
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}
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//Update the LI to match the SELECT
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this.$element.find('option').each(function(index) {
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_this.setDisabled(index, $(this).is(':disabled') || $(this).parent().is(':disabled') );
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_this.setSelected(index, $(this).is(':selected') );
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});
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var selectedItems = this.$element.find('option:selected').map(function(index,value) {
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if($(this).attr('title')!=undefined) {
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return $(this).attr('title');
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} else {
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return $(this).text();
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}
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}).toArray();
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//Convert all the values into a comma delimited string
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var title = selectedItems.join(", ");
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//If this is multi select, and the selectText type is count, the show 1 of 2 selected etc..
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if(_this.multiple && _this.options.selectedTextFormat.indexOf('count') > -1) {
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var max = _this.options.selectedTextFormat.split(">");
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if( (max.length>1 && selectedItems.length > max[1]) || (max.length==1 && selectedItems.length>=2)) {
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title = selectedItems.length +' of ' + this.$element.find('option').length + ' selected';
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}
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}
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//If we dont have a title, then use the default, or if nothing is set at all, use the not selected text
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if(!title) {
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title = _this.options.title != undefined ? _this.options.title : _this.options.noneSelectedText;
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}
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this.$element.next('.select').find('.filter-option').html( title );
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},
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setSelected:function(index, selected) {
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if(selected) {
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this.$newElement.find('li').eq(index).addClass('selected');
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} else {
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this.$newElement.find('li').eq(index).removeClass('selected');
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}
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},
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setDisabled:function(index, disabled) {
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if(disabled) {
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this.$newElement.find('li').eq(index).addClass('disabled');
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} else {
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this.$newElement.find('li').eq(index).removeClass('disabled');
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}
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},
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checkDisabled: function() {
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if (this.$element.is(':disabled')) {
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this.button.addClass('disabled');
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this.button.click(function(e) {
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e.preventDefault();
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});
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}
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},
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checkTabIndex: function() {
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if (this.$element.is('[tabindex]')) {
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var tabindex = this.$element.attr("tabindex");
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this.button.attr('tabindex', tabindex);
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}
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},
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clickListener: function() {
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var _this = this;
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$('body').on('touchstart.dropdown', '.dropdown-menu', function (e) { e.stopPropagation(); });
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this.$newElement.on('click', 'li a', function(e){
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var clickedIndex = $(this).parent().index(),
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$this = $(this).parent(),
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$select = $this.parents('.select');
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//Dont close on multi choice menu
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if(_this.multiple) {
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e.stopPropagation();
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}
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e.preventDefault();
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//Dont run if we have been disabled
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if ($select.prev('select').not(':disabled') && !$(this).parent().hasClass('disabled')){
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//Deselect all others if not multi select box
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if (!_this.multiple) {
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$select.prev('select').find('option').removeAttr('selected');
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$select.prev('select').find('option').eq(clickedIndex).prop('selected', true).attr('selected', 'selected');
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}
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//Else toggle the one we have chosen if we are multi selet.
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else {
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var selected = $select.prev('select').find('option').eq(clickedIndex).prop('selected');
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if(selected) {
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$select.prev('select').find('option').eq(clickedIndex).removeAttr('selected');
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} else {
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$select.prev('select').find('option').eq(clickedIndex).prop('selected', true).attr('selected', 'selected');
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}
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}
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$select.find('.filter-option').html($this.text());
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$select.find('button').focus();
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// Trigger select 'change'
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$select.prev('select').trigger('change');
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}
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});
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this.$newElement.on('click', 'li.disabled a, li dt, li .divider', function(e) {
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e.preventDefault();
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e.stopPropagation();
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$select = $(this).parent().parents('.select');
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$select.find('button').focus();
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});
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this.$element.on('change', function(e) {
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_this.render();
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});
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},
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val:function(value) {
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if(value!=undefined) {
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this.$element.val( value );
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this.$element.trigger('change');
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return this.$element;
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} else {
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return this.$element.val();
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}
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}
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};
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$.fn.selectpicker = function(option, event) {
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//get the args of the outer function..
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var args = arguments;
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var value;
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var chain = this.each(function () {
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var $this = $(this),
|
||
|
|
data = $this.data('selectpicker'),
|
||
|
|
options = typeof option == 'object' && option;
|
||
|
|
|
||
|
|
if (!data) {
|
||
|
|
$this.data('selectpicker', (data = new Selectpicker(this, options, event)));
|
||
|
|
} else {
|
||
|
|
for(var i in option) {
|
||
|
|
data[i]=option[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof option == 'string') {
|
||
|
|
//Copy the value of option, as once we shift the arguments
|
||
|
|
//it also shifts the value of option.
|
||
|
|
property = option;
|
||
|
|
if(data[property] instanceof Function) {
|
||
|
|
[].shift.apply(args);
|
||
|
|
value = data[property].apply(data, args);
|
||
|
|
} else {
|
||
|
|
value = data[property];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
if(value!=undefined) {
|
||
|
|
return value;
|
||
|
|
} else {
|
||
|
|
return chain;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
$.fn.selectpicker.defaults = {
|
||
|
|
style: null,
|
||
|
|
size: 'auto',
|
||
|
|
title: null,
|
||
|
|
selectedTextFormat : 'values',
|
||
|
|
noneSelectedText : 'Nothing selected',
|
||
|
|
width: null,
|
||
|
|
menuStyle: null,
|
||
|
|
toggleSize: null
|
||
|
|
}
|
||
|
|
|
||
|
|
}(window.jQuery);
|