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- /*
- * jQuery selectbox plugin
- *
- * Copyright (c) 2007 Sadri Sahraoui (brainfault.com)
- * Licensed under the GPL license and MIT:
- * http://www.opensource.org/licenses/GPL-license.php
- * http://www.opensource.org/licenses/mit-license.php
- *
- * The code is inspired from Autocomplete plugin (http://www.dyve.net/jquery/?autocomplete)
- *
- * Revision: $Id$
- * Version: 1.2
- *
- * Changelog :
- * Version 1.2 By Guillaume Vergnolle (web-opensource.com)
- * - Add optgroup support
- * - possibility to choose between span or input as replacement of the select box
- * - support for jquery change event
- * - add a max height option for drop down list
- * Version 1.1
- * - Fix IE bug
- * Version 1.0
- * - Support jQuery noConflict option
- * - Add callback for onChange event, thanks to Jason
- * - Fix IE8 support
- * - Fix auto width support
- * - Fix focus on firefox dont show the carret
- * Version 0.6
- * - Fix IE scrolling problem
- * Version 0.5
- * - separate css style for current selected element and hover element which solve the highlight issue
- * Version 0.4
- * - Fix width when the select is in a hidden div @Pawel Maziarz
- * - Add a unique id for generated li to avoid conflict with other selects and empty values @Pawel Maziarz
- */
- jQuery.fn.extend({
- selectbox: function(options) {
- return this.each(function() {
- new jQuery.SelectBox(this, options);
- });
- }
- });
- /* pawel maziarz: work around for ie logging */
- if (!window.console) {
- var console = {
- log: function(msg) {
- }
- }
- }
- /* */
- jQuery.SelectBox = function(selectobj, options) {
- var opt = options || {};
- opt.inputType = opt.inputType || "input";
- opt.inputClass = opt.inputClass || "selectbox";
- opt.containerClass = opt.containerClass || "selectbox-wrapper";
- opt.hoverClass = opt.hoverClass || "current";
- opt.currentClass = opt.currentClass || "selected";
- opt.groupClass = opt.groupClass || "groupname"; //css class for group
- opt.maxHeight = opt.maxHeight || 200; // max height of dropdown list
- opt.loopnoStep = opt.loopnoStep || false; // to remove the step in list moves loop
- opt.onChangeCallback = opt.onChangeCallback || false;
- opt.onChangeParams = opt.onChangeParams || false;
- opt.debug = opt.debug || false;
- var elm_id = selectobj.id;
- var active = 0;
- var inFocus = false;
- var hasfocus = 0;
- //jquery object for select element
- var $select = jQuery(selectobj);
- // jquery container object
- var $container = setupContainer(opt);
- //jquery input object
- var $input = setupInput(opt);
- // hide select and append newly created elements
- $select.hide().before($input).before($container);
- init();
- $input
- .click(function(){
- if (!inFocus) {
- $container.toggle();
- }
- })
- .focus(function(){
- if ($container.not(':visible')) {
- inFocus = true;
- $container.show();
- }
- })
- .keydown(function(event) {
- switch(event.keyCode) {
- case 38: // up
- event.preventDefault();
- moveSelect(-1);
- break;
- case 40: // down
- event.preventDefault();
- moveSelect(1);
- break;
- //case 9: // tab
- case 13: // return
- event.preventDefault(); // seems not working in mac !
- $('li.'+opt.hoverClass).trigger('click');
- break;
- case 27: //escape
- hideMe();
- break;
- }
- })
- .blur(function() {
- if ($container.is(':visible') && hasfocus > 0 ) {
- if(opt.debug) console.log('container visible and has focus')
- } else {
- // Workaround for ie scroll - thanks to Bernd Matzner
- if((jQuery.browser.msie && jQuery.browser.version.substr(0,1) < 8) || jQuery.browser.safari){ // check for safari too - workaround for webkit
- if(document.activeElement.getAttribute('id').indexOf('_container')==-1){
- hideMe();
- } else {
- $input.focus();
- }
- } else {
- hideMe();
- }
- }
- });
- function hideMe() {
- hasfocus = 0;
- $container.hide();
- }
- function init() {
- $container.append(getSelectOptions($input.attr('id'))).hide();
- var width = $input.css('width');
- if($container.height() > opt.maxHeight){
- $container.width(parseInt(width)+parseInt($input.css('paddingRight'))+parseInt($input.css('paddingLeft')));
- $container.height(opt.maxHeight);
- } else $container.width(width);
- }
- function setupContainer(options) {
- var container = document.createElement("div");
- $container = jQuery(container);
- $container.attr('id', elm_id+'_container');
- $container.addClass(options.containerClass);
- $container.css('display', 'none');
- return $container;
- }
- function setupInput(options) {
- if(opt.inputType == "span"){
- var input = document.createElement("span");
- var $input = jQuery(input);
- $input.attr("id", elm_id+"_input");
- $input.addClass(options.inputClass);
- $input.attr("tabIndex", $select.attr("tabindex"));
- } else {
- var input = document.createElement("input");
- var $input = jQuery(input);
- $input.attr("id", elm_id+"_input");
- $input.attr("type", "text");
- $input.addClass(options.inputClass);
- $input.attr("autocomplete", "off");
- $input.attr("readonly", "readonly");
- $input.attr("tabIndex", $select.attr("tabindex")); // "I" capital is important for ie
- $input.css("width", $select.css("width"));
- }
- return $input;
- }
- function moveSelect(step) {
- var lis = jQuery("li", $container);
- if (!lis || lis.length == 0) return false;
- // find the first non-group (first option)
- firstchoice = 0;
- while($(lis[firstchoice]).hasClass(opt.groupClass)) firstchoice++;
- active += step;
- // if we are on a group step one more time
- if($(lis[active]).hasClass(opt.groupClass)) active += step;
- //loop through list from the first possible option
- if (active < firstchoice) {
- (opt.loopnoStep ? active = lis.size()-1 : active = lis.size() );
- } else if (opt.loopnoStep && active > lis.size()-1) {
- active = firstchoice;
- } else if (active > lis.size()) {
- active = firstchoice;
- }
- scroll(lis, active);
- lis.removeClass(opt.hoverClass);
- jQuery(lis[active]).addClass(opt.hoverClass);
- }
- function scroll(list, active) {
- var el = jQuery(list[active]).get(0);
- var list = $container.get(0);
- if (el.offsetTop + el.offsetHeight > list.scrollTop + list.clientHeight) {
- list.scrollTop = el.offsetTop + el.offsetHeight - list.clientHeight;
- } else if(el.offsetTop < list.scrollTop) {
- list.scrollTop = el.offsetTop;
- }
- }
- function setCurrent() {
- var li = jQuery("li."+opt.currentClass, $container).get(0);
- var ar = (''+li.id).split('_');
- var el = ar[ar.length-1];
- if (opt.onChangeCallback){
- $select.get(0).selectedIndex = $('li', $container).index(li);
- opt.onChangeParams = { selectedVal : $select.val() };
- opt.onChangeCallback(opt.onChangeParams);
- } else {
- $select.val(el);
- $select.change();
- }
- if(opt.inputType == 'span') $input.html($(li).html());
- else $input.val($(li).html());
- return true;
- }
- // select value
- function getCurrentSelected() {
- return $select.val();
- }
- // input value
- function getCurrentValue() {
- return $input.val();
- }
- function getSelectOptions(parentid) {
- var select_options = new Array();
- var ul = document.createElement('ul');
- select_options = $select.children('option');
- if(select_options.length == 0) {
- var select_optgroups = new Array();
- select_optgroups = $select.children('optgroup');
- for(x=0;x<select_optgroups.length;x++){
- select_options = $("#"+select_optgroups[x].id).children('option');
- var li = document.createElement('li');
- li.setAttribute('id', parentid + '_' + $(this).val());
- li.innerHTML = $("#"+select_optgroups[x].id).attr('label');
- li.className = opt.groupClass;
- ul.appendChild(li);
- select_options.each(function() {
- var li = document.createElement('li');
- li.setAttribute('id', parentid + '_' + $(this).val());
- li.innerHTML = $(this).html();
- if ($(this).is(':selected')) {
- $input.html($(this).html());
- $(li).addClass(opt.currentClass);
- }
- ul.appendChild(li);
- $(li)
- .mouseover(function(event) {
- hasfocus = 1;
- if (opt.debug) console.log('over on : '+this.id);
- jQuery(event.target, $container).addClass(opt.hoverClass);
- })
- .mouseout(function(event) {
- hasfocus = -1;
- if (opt.debug) console.log('out on : '+this.id);
- jQuery(event.target, $container).removeClass(opt.hoverClass);
- })
- .click(function(event) {
- var fl = $('li.'+opt.hoverClass, $container).get(0);
- if (opt.debug) console.log('click on :'+this.id);
- $('li.'+opt.currentClass, $container).removeClass(opt.currentClass);
- $(this).addClass(opt.currentClass);
- setCurrent();
- $select.get(0).blur();
- hideMe();
- });
- });
- }
- } else select_options.each(function() {
- var li = document.createElement('li');
- li.setAttribute('id', parentid + '_' + $(this).val());
- li.innerHTML = $(this).html();
- if ($(this).is(':selected')) {
- $input.val($(this).html());
- $(li).addClass(opt.currentClass);
- }
- ul.appendChild(li);
- $(li)
- .mouseover(function(event) {
- hasfocus = 1;
- if (opt.debug) console.log('over on : '+this.id);
- jQuery(event.target, $container).addClass(opt.hoverClass);
- })
- .mouseout(function(event) {
- hasfocus = -1;
- if (opt.debug) console.log('out on : '+this.id);
- jQuery(event.target, $container).removeClass(opt.hoverClass);
- })
- .click(function(event) {
- var fl = $('li.'+opt.hoverClass, $container).get(0);
- if (opt.debug) console.log('click on :'+this.id);
- $('li.'+opt.currentClass, $container).removeClass(opt.currentClass);
- $(this).addClass(opt.currentClass);
- setCurrent();
- $select.get(0).blur();
- hideMe();
- });
- });
- return ul;
- }
- };
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