4 Animated linetabs by frequency decoder (http://www.frequency-decoder.com/)
6 Based on an idea by Rob L Glazebrook (http://www.rootarcana.com/test/smartmini/) itself
7 derived from the original idea of Stephen Clark (http://www.sgclark.com/sandbox/minislide/)
9 Rewritten by Thierry Parmentelat -- INRIA
11 support multiple instances
17 function linetabs () {
26 this.animInterval = null;
27 this.elem_div_linetabs = null;
32 linetabs.prototype.init = function (div) {
33 this.ul = div.down('ul');
34 /* the array of <li>'s */
35 this.li_s = this.ul.select('li');
36 /* the array of active <input>'s - without any hidden one */
37 this.input_s = this.ul.select('input.linetabs-submit');
39 /* attach event handlers */
40 this.li_s.each ( function (li) {
41 li.observe ('mouseover', function(event) {
42 var elem = event.element();
43 /* make sure we're on the 'li' element */
44 if ( ! elem.match('li') ) elem=elem.up('li');
45 /* determine current position */
47 while(elem.previousSibling) {
48 elem = elem.previousSibling;
49 if (elem.tagName && elem.tagName == "LI") pos++;
51 linetabs_namespace.the_linetabs(elem).initSlide(pos,true);
55 this.ul.observe('mouseout', function (event) {
56 var mt = linetabs_namespace.the_linetabs(event.element());
57 mt.initSlide(mt.currentTab,true);
58 mt.setActive (mt.activeTab,false);
61 /* set active and current, default is index 0, set 'active' class otherwise */
62 this.input_s.each ( function (input) {
63 if (input.hasClassName("active")) this.activeTab = this.currentTab = i;
66 /* create slice object */
67 this.slideObj = this.ul.parentNode.appendChild(document.createElement("div"));
68 this.slideObj.appendChild(document.createTextNode(String.fromCharCode(160)));
69 this.slideObj.id = "linetabs-sliding";
73 this.slideObj.style.left = (this.ul.offsetLeft + this.li_s[this.activeTab].offsetLeft +
74 this.input_s[this.activeTab].offsetLeft) + "px";
75 this.slideObj.style.width = this.input_s[this.activeTab].offsetWidth + "px";
76 this.aHeight = (this.ul.offsetTop + this.li_s[this.activeTab].offsetTop +
77 this.input_s[this.activeTab].offsetTop);
79 this.initSlide(this.activeTab, true);
83 linetabs.prototype.initSlide = function (pos, force) {
85 if(!force && pos == this.activeTab) return;
86 this.setActive (this.activeTab,false);
88 this.setActive (this.activeTab,true);
92 linetabs.prototype.setActive = function (pos,active) {
93 var input=this.li_s[pos].select('input.linetabs-submit')[0];
95 input.addClassName('active');
97 input.removeClassName('active');
100 linetabs.prototype.setSlidingTop = function () {
102 /* up 5px for firefox */
103 /*window.console.log('agent=' + navigator.userAgent);*/
104 if (navigator.userAgent.match(/Firefox/)) delta=-5;
105 this.slideObj.style.top = (this.ul.offsetTop + this.li_s[this.activeTab].offsetTop
106 + this.input_s[this.activeTab].offsetTop + delta ) + "px";
109 linetabs.prototype.initAnim = function() {
110 /* search for the input with type != hidden */
111 var input=this.li_s[this.activeTab].select('input.linetabs-submit')[0];
112 this.destX = parseInt(this.li_s[this.activeTab].offsetLeft + input.offsetLeft
113 + this.ul.offsetLeft);
114 this.destW = parseInt(input.offsetWidth);
116 this.b = this.slideObj.offsetLeft;
117 this.c = this.destX - this.b;
119 this.bW = this.slideObj.offsetWidth;
120 this.cW = this.destW - this.bW;
122 this.setSlidingTop();
125 linetabs.prototype.slideIt = function() {
127 // Has the browser text size changed?
128 var active_li = this.li_s[this.activeTab];
129 var active_input = this.input_s[this.activeTab];
130 if (this.aHeight != this.ul.offsetTop + active_li.offsetTop + active_input.offsetTop) {
132 this.aHeight = this.ul.offsetTop + active_li.offsetTop + active_input.offsetTop;
136 if (this.t++ < this.d) {
137 var x = this.animate(this.t,this.b,this.c,this.d);
138 var w = this.animate(this.t,this.bW,this.cW,this.d);
140 this.slideObj.style.left = parseInt(x) + "px";
141 this.slideObj.style.width = parseInt(w) + "px";
143 this.slideObj.style.left = this.destX + "px";
144 this.slideObj.style.width = this.destW +"px";
148 linetabs.prototype.animate = function(t,b,c,d) {
149 if ((t/=d/2) < 1) return c/2*t*t + b;
150 return -c/2 * ((--t)*(t-2) - 1) + b;
153 linetabs.prototype.submit = function (message) {
154 /* save activeTab before confirmation; some browsers - firefox - send mouseout during confirm .. */
155 var submitTab = this.activeTab;
156 /* ask for confirmation if message is not empty */
157 if (message && ! confirm (message) ) return;
159 /* get the form and trigger */
160 this.li_s[submitTab].down('form').submit();
165 var linetabs_namespace = {
167 // just give it a little time to load everything.
168 setTimeout('linetabs_namespace.lazyInit()', 1000);
171 lazyInit: function() {
172 linetabs_namespace.elem_div_linetabs = $$('div.linetabs');
174 Event.observe('linetabs',
177 linetabs_namespace.elem_div_linetabs = $$('div.linetabs');
180 linetabs_namespace.elem_div_linetabs.each (function (div) {
181 /* create instance and attach it to the <div> element */
182 div.linetabs = new linetabs ();
183 div.linetabs.init(div);
186 var intervalMethod = function () {
187 linetabs_namespace.elem_div_linetabs.each (function (div) {
188 linetabs_namespace.the_linetabs(div).slideIt();
191 linetabs_namespace.animInterval = setInterval(intervalMethod,10);
194 cleanUp: function() {
195 clearInterval(linetabs_namespace.animInterval);
196 linetabs_namespace.animInterval = null;
197 linetabs_namespace.elem_div_linetabs = null;
200 resize: function (e) {
201 $$('div.linetabs').each ( function (div) {
202 var mt = div.linetabs;
203 mt.initSlide(mt.activeTab,true);
207 submit: function (id,message) {
208 $(id).linetabs.submit(message);
211 // find the enclosing linetabs object
212 the_linetabs: function (elem) {
213 if (elem.match('div.linetabs'))
214 return elem.linetabs;
216 return elem.up('div.linetabs').linetabs;
221 Event.observe(window, 'load', linetabs_namespace.init);
222 Event.observe(window, 'unload', linetabs_namespace.cleanUp);
223 Event.observe(window, 'resize', linetabs_namespace.resize);