https://azamn.com/skin/js/jqselect.js

1jQuery.fn.extend({
2	selectbox: function(options) {
3		return this.each(function() {
4			new jQuery.SelectBox(this, options);
5		});
6	}
7});
8
9
10/* pawel maziarz: work around for ie logging */
11if (!window.console) {
12	var console = {
13		log: function(msg) { 
14	 }
15	}
16}
17/* */
18
19jQuery.SelectBox = function(selectobj, options) {
20	
21	var opt = options || {};
22	opt.inputClass = opt.inputClass || "selectbox";
23	opt.containerClass = opt.containerClass || "selectbox-wrapper";
24	opt.hoverClass = opt.hoverClass || "current";
25	opt.currentClass = opt.selectedClass || "selected"
26	opt.debug = opt.debug || false;
27	
28	var elm_id = selectobj.id;
29	var active = 0;
30	var inFocus = false;
31	var hasfocus = 0;
32	//jquery object for select element
33	var $select = $(selectobj);
34	// jquery container object
35	var $container = setupContainer(opt);
36	//jquery input object 
37	var $input = setupInput(opt);
38	// hide select and append newly created elements
39	$select.hide().before($input).before($container);
40	
41	
42	init();
43	
44	$input
45	.click(function(){
46    if (!inFocus) {
47		  $container.toggle();
48		}
49	})
50	.focus(function(){
51	   if ($container.not(':visible')) {
52	       inFocus = true;
53	       $container.show();
54	   }
55	})
56	.keydown(function(event) {	   
57		switch(event.keyCode) {
58			case 38: // up
59				event.preventDefault();
60				moveSelect(-1);
61				break;
62			case 40: // down
63				event.preventDefault();
64				moveSelect(1);
65				break;
66			//case 9:  // tab 
67			case 13: // return
68				event.preventDefault(); // seems not working in mac !
69				$('li.'+opt.hoverClass).trigger('click');
70				break;
71			case 27: //escape
72			  hideMe();
73			  break;
74		}
75	})
76	.blur(function() {
77		if ($container.is(':visible') && hasfocus > 0 ) {
78			if(opt.debug) console.log('container visible and has focus')
79		} else {
80		  // Workaround for ie scroll - thanks to Bernd Matzner

81		  if($.browser.msie || $.browser.safari){ // check for safari too - workaround for webkit
82        if(document.activeElement.getAttribute('id').indexOf('_container')==-1){
83          hideMe();
84        } else {
85          $input.focus();
86        }
87      } else {
88        hideMe();
89      }
90		}
91	});
92
93
94	function hideMe() { 
95		hasfocus = 0;
96		$container.hide(); 
97	}
98	
99	function init() {
100		$container.append(getSelectOptions($input.attr('id'))).hide();
101		var width = $input.css('width');
102
103    }
104	
105	function setupContainer(options) {
106		var container = document.createElement("div");
107		$container = $(container);
108		$container.attr('id', elm_id+'_container');
109		$container.addClass(options.containerClass);
110		
111		return $container;
112	}
113	
114	function setupInput(options) {
115		var input = document.createElement("input");
116		var $input = $(input);
117		$input.attr("id", elm_id+"_input");
118		$input.attr("type", "text");
119		$input.addClass(options.inputClass);
120		$input.attr("autocomplete", "off");
121		$input.attr("readonly", "readonly");
122		$input.attr("tabIndex", $select.attr("tabindex")); // "I" capital is important for ie
123		
124		return $input;	
125	}
126	
127	function moveSelect(step) {
128		var lis = $("li", $container);
129		if (!lis || lis.length == 0) return false;
130		active += step;
131    //loop through list
132		if (active < 0) {
133			active = lis.size();
134		} else if (active > lis.size()) {
135			active = 0;
136		}
137    scroll(lis, active);
138		lis.removeClass(opt.hoverClass);
139
140		$(lis[active]).addClass(opt.hoverClass);
141	}
142	
143	function scroll(list, active) {
144      var el = $(list[active]).get(0);
145      var list = $container.get(0);
146      
147      if (el.offsetTop + el.offsetHeight > list.scrollTop + list.clientHeight) {
148        list.scrollTop = el.offsetTop + el.offsetHeight - list.clientHeight;      
149      } else if(el.offsetTop < list.scrollTop) {
150        list.scrollTop = el.offsetTop;
151      }
152	}
153	
154	function setCurrent() {	
155		var li = $("li."+opt.currentClass, $container).get(0);
156		var ar = (''+li.id).split('_');
157		var el = ar[ar.length-1];
158		$select.val(el);
159		$input.val($(li).html());
160		return true;
161	}
162	
163	// select value
164	function getCurrentSelected() {
165		return $select.val();
166	}
167	
168	// input value
169	function getCurrentValue() {
170		return $input.val();
171	}
172	
173	function getSelectOptions(parentid) {
174		var select_options = new Array();
175		var ul = document.createElement('ul');
176		$select.children('option').each(function() {
177			var li = document.createElement('li');
178			li.setAttribute('id', parentid + '_' + $(this).val());
179			li.innerHTML = $(this).html();
180			if ($(this).is(':selected')) {
181				$input.val($(this).html());
182				$(li).addClass(opt.currentClass);
183			}
184			ul.appendChild(li);
185			$(li)
186			.mouseover(function(event) {
187				hasfocus = 1;
188				if (opt.debug) console.log('over on : '+this.id);
189				jQuery(event.target, $container).addClass(opt.hoverClass);
190			})
191			.mouseout(function(event) {
192				hasfocus = -1;
193				if (opt.debug) console.log('out on : '+this.id);
194				jQuery(event.target, $container).removeClass(opt.hoverClass);
195			})
196			.click(function(event) {
197			  var fl = $('li.'+opt.hoverClass, $container).get(0);
198				if (opt.debug) console.log('click on :'+this.id);
199				$('#' + elm_id + '_container' + ' li.'+opt.currentClass).removeClass(opt.currentClass); 
200				$(this).addClass(opt.currentClass);
201				setCurrent();
202				//$select.change();
203				$select.get(0).blur();
204				hideMe();
205			});
206		});
207		return ul;
208	}
209	
210	
211	
212};