+/*
+ $Id$
+
+ Animated miniTabs by frequency decoder (http://www.frequency-decoder.com/)
+
+ Based on an idea by Rob L Glazebrook (http://www.rootarcana.com/test/smartmini/) itself
+ derived from the original idea of Stephen Clark (http://www.sgclark.com/sandbox/minislide/)
+
+ Rewritten by Thierry Parmentelat -- INRIA
+ support http-POST
+ support multiple instances
+ uses prototype.js
+
+*/
+
+/* class */
+function minitabs () {
+ this.currentTab = 0;
+ this.activeTab = 0;
+ this.destX = 0;
+ this.destW = 0;
+ this.t = 0;
+ this.b = 0;
+ this.c = 0;
+ this.d = 20;
+ this.animInterval = null;
+ this.slideObj = null;
+ this.aHeight = 0;
+}
+
+minitabs.prototype.init = function (div) {
+ this.ul = div.down('ul');
+ /* the array of <li>'s */
+ this.li_s = this.ul.select('li');
+ /* the array of active <input>'s - without any hidden one */
+ this.input_s = this.ul.select('input.minitabs-submit');
+
+ /* attach event handlers */
+ this.li_s.each ( function (li) {
+ li.observe ('mouseover', function(event) {
+ var elem = event.element();
+ /* make sure we're on the 'li' element */
+ if ( ! elem.match('li') ) elem=elem.up('li');
+ /* determine current position */
+ var pos = 0;
+ while(elem.previousSibling) {
+ elem = elem.previousSibling;
+ if (elem.tagName && elem.tagName == "LI") pos++;
+ }
+ minitabs_namespace.the_minitabs(elem).initSlide(pos,true);
+ } )
+ } );
+
+ this.ul.observe('mouseout', function (event) {
+ var mt = minitabs_namespace.the_minitabs(event.element());
+ mt.initSlide(mt.currentTab,true);
+ mt.setActive (mt.activeTab,false);
+ });
+
+ /* set active and current, default is index 0, set 'active' class otherwise */
+ this.input_s.each ( function (input) {
+ if (input.hasClassName("active")) this.activeTab = this.currentTab = i;
+ });
+
+ /* create slice object */
+ this.slideObj = this.ul.parentNode.appendChild(document.createElement("div"));
+ this.slideObj.appendChild(document.createTextNode(String.fromCharCode(160)));
+ this.slideObj.id = "minitabs-sliding";
+
+ /* position it */
+ this.setSlidingTop();
+ this.slideObj.style.left = (this.ul.offsetLeft + this.li_s[this.activeTab].offsetLeft +
+ this.input_s[this.activeTab].offsetLeft) + "px";
+ this.slideObj.style.width = this.input_s[this.activeTab].offsetWidth + "px";
+ this.aHeight = (this.ul.offsetTop + this.li_s[this.activeTab].offsetTop +
+ this.input_s[this.activeTab].offsetTop);
+
+ this.initSlide(this.activeTab, true);
+
+};
+
+minitabs.prototype.initSlide = function (pos, force) {
+
+ if(!force && pos == this.activeTab) return;
+ this.setActive (this.activeTab,false);
+ this.activeTab = pos;
+ this.setActive (this.activeTab,true);
+ this.initAnim();
+};
+
+minitabs.prototype.setActive = function (pos,active) {
+ var input=this.li_s[pos].select('input.minitabs-submit')[0];
+ if (active)
+ input.addClassName('active');
+ else
+ input.removeClassName('active');
+};
+
+minitabs.prototype.setSlidingTop = function () {
+ var delta=0;
+ /* up 5px for firefox */
+ /*window.console.log('agent=' + navigator.userAgent);*/
+ if (navigator.userAgent.match(/Firefox/)) delta=-5;
+ this.slideObj.style.top = (this.ul.offsetTop + this.li_s[this.activeTab].offsetTop
+ + this.input_s[this.activeTab].offsetTop + delta ) + "px";
+};
+
+minitabs.prototype.initAnim = function() {
+ /* search for the input with type != hidden */
+ var input=this.li_s[this.activeTab].select('input.minitabs-submit')[0];
+ this.destX = parseInt(this.li_s[this.activeTab].offsetLeft + input.offsetLeft
+ + this.ul.offsetLeft);
+ this.destW = parseInt(input.offsetWidth);
+ this.t = 0;
+ this.b = this.slideObj.offsetLeft;
+ this.c = this.destX - this.b;
+
+ this.bW = this.slideObj.offsetWidth;
+ this.cW = this.destW - this.bW;
+
+ this.setSlidingTop();
+};
+
+minitabs.prototype.slideIt = function() {
+
+ // Has the browser text size changed?
+ var active_li = this.li_s[this.activeTab];
+ var active_input = this.input_s[this.activeTab];
+ if (this.aHeight != this.ul.offsetTop + active_li.offsetTop + active_input.offsetTop) {
+ this.initAnim();
+ this.aHeight = this.ul.offsetTop + active_li.offsetTop + active_input.offsetTop;
+ }
+
+
+ if (this.t++ < this.d) {
+ var x = this.animate(this.t,this.b,this.c,this.d);
+ var w = this.animate(this.t,this.bW,this.cW,this.d);
+
+ this.slideObj.style.left = parseInt(x) + "px";
+ this.slideObj.style.width = parseInt(w) + "px";
+ } else {
+ this.slideObj.style.left = this.destX + "px";
+ this.slideObj.style.width = this.destW +"px";
+ }
+};
+
+minitabs.prototype.animate = function(t,b,c,d) {
+ if ((t/=d/2) < 1) return c/2*t*t + b;
+ return -c/2 * ((--t)*(t-2) - 1) + b;
+};
+
+minitabs.prototype.submit = function (message) {
+ /* save activeTab before confirmation; some browsers - firefox - send mouseout during confirm .. */
+ var submitTab = this.activeTab;
+ /* ask for confirmation if message is not empty */
+ if (message && ! confirm (message) ) return;
+
+ /* get the form and trigger */
+ this.li_s[submitTab].down('form').submit();
+
+}
+
+// globals
+var minitabs_namespace = {
+ init: function () {
+ $$('div.minitabs').each (function (div) {
+ /* create instance and attach it to the <div> element */
+ div.minitabs = new minitabs ();
+ div.minitabs.init(div);
+ } ) ;
+
+ var intervalMethod = function () {
+ $$('div.minitabs').each (function (div) {
+ minitabs_namespace.the_minitabs(div).slideIt();
+ } ) ;
+ } ;
+ minitabs_namespace.animInterval = setInterval(intervalMethod,10);
+ },
+
+ cleanUp: function() {
+ clearInterval(minitabs_namespace.animInterval);
+ minitabs_namespace.animInterval = null;
+ },
+
+ resize: function (e) {
+ $$('div.minitabs').each ( function (div) {
+ var mt = div.minitabs;
+ mt.initSlide(mt.activeTab,true);
+ } );
+ },
+
+ submit: function (id,message) {
+ $(id).minitabs.submit(message);
+ },
+
+ // find the enclosing minitabs object
+ the_minitabs: function (elem) {
+ if (elem.match('div.minitabs'))
+ return elem.minitabs;
+ else
+ return elem.up('div.minitabs').minitabs;
+ }
+
+};
+
+window.onload = minitabs_namespace.init;
+window.onunload = minitabs_namespace.cleanUp;
+window.onresize = minitabs_namespace.resize;