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/*
* Tabs 3 - New Wave Tabs
*
* Copyright (c) 2007 Klaus Hartl (stilbuero.de)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*/
(function($) {
// if the UI scope is not availalable, add it
$.ui = $.ui || {};
// tabs initialization
$.fn.tabs = function(initial, options) {
if (initial && initial.constructor == Object) { // shift arguments
options = initial;
initial = null;
}
options = options || {};
initial = initial && initial.constructor == Number && --initial || 0;
return this.each(function() {
new $.ui.tabs(this, $.extend(options, { initial: initial }));
});
};
// other chainable tabs methods
$.each(['Add', 'Remove', 'Enable', 'Disable', 'Click', 'Load', 'Href'], function(i, method) {
$.fn['tabs' + method] = function() {
var args = arguments;
return this.each(function() {
var instance = $.ui.tabs.getInstance(this);
instance[method.toLowerCase()].apply(instance, args);
});
};
});
$.fn.tabsSelected = function() {
var selected = -1;
if (this[0]) {
var instance = $.ui.tabs.getInstance(this[0]),
$lis = $('li', this);
selected = $lis.index( $lis.filter('.' + instance.options.selectedClass)[0] );
}
return selected >= 0 ? ++selected : -1;
};
// tabs class
$.ui.tabs = function(el, options) {
this.source = el;
this.options = $.extend({
// basic setup
initial: 0,
event: 'click',
disabled: [],
cookie: null, // pass options object as expected by cookie plugin: { expires: 7, path: '/', domain: 'jquery.com', secure: true }
// TODO bookmarkable: $.ajaxHistory ? true : false,
unselected: false,
unselect: options.unselected ? true : false,
// Ajax
spinner: 'Loading…',
cache: false,
idPrefix: 'ui-tabs-',
ajaxOptions: {},
// animations
/*fxFade: null,
fxSlide: null,
fxShow: null,
fxHide: null,*/
fxSpeed: 'normal',
/*fxShowSpeed: null,
fxHideSpeed: null,*/
// callbacks
add: function() {},
remove: function() {},
enable: function() {},
disable: function() {},
click: function() {},
hide: function() {},
show: function() {},
load: function() {},
// templates
tabTemplate: '<li><a href="#{href}"><span>#{text}</span></a></li>',
panelTemplate: '<div></div>',
// CSS classes
navClass: 'ui-tabs-nav',
selectedClass: 'ui-tabs-selected',
unselectClass: 'ui-tabs-unselect',
disabledClass: 'ui-tabs-disabled',
panelClass: 'ui-tabs-panel',
hideClass: 'ui-tabs-hide',
loadingClass: 'ui-tabs-loading'
}, options);
this.options.event += '.ui-tabs'; // namespace event
this.options.cookie = $.cookie && $.cookie.constructor == Function && this.options.cookie;
// save instance for later
$.data(el, $.ui.tabs.INSTANCE_KEY, this);
// create tabs
this.tabify(true);
};
// static
$.ui.tabs.INSTANCE_KEY = 'ui_tabs_instance';
$.ui.tabs.getInstance = function(el) {
return $.data(el, $.ui.tabs.INSTANCE_KEY);
};
// instance methods
$.extend($.ui.tabs.prototype, {
tabId: function(a) {
return a.title ? a.title.replace(/\s/g, '_')
: this.options.idPrefix + $.data(a);
},
tabify: function(init) {
this.$tabs = $('a:first-child', this.source);
this.$panels = $([]);
var self = this, o = this.options;
this.$tabs.each(function(i, a) {
// inline tab
if (a.hash && a.hash.replace('#', '')) { // Safari 2 reports '#' for an empty hash
self.$panels = self.$panels.add(a.hash);
}
// remote tab
else if ($(a).attr('href') != '#') { // prevent loading the page itself if href is just "#"
$.data(a, 'href', a.href);
var id = self.tabId(a);
a.href = '#' + id;
self.$panels = self.$panels.add(
$('#' + id)[0] || $(o.panelTemplate).attr('id', id).addClass(o.panelClass)
.insertAfter( self.$panels[i - 1] || self.source )
);
}
// invalid tab href
else {
o.disabled.push(i + 1);
}
});
if (init) {
// attach necessary classes for styling if not present
$(this.source).hasClass(o.navClass) || $(this.source).addClass(o.navClass);
this.$panels.each(function() {
var $this = $(this);
$this.hasClass(o.panelClass) || $this.addClass(o.panelClass);
});
// disabled tabs
for (var i = 0, position; position = o.disabled[i]; i++) {
this.disable(position);
}
// Try to retrieve initial tab:
// 1. from fragment identifier in url if present
// 2. from cookie
// 3. from selected class attribute on <li>
// 4. otherwise use given initial argument
// 5. check if tab is disabled
this.$tabs.each(function(i, a) {
if (location.hash) {
if (a.hash == location.hash) {
o.initial = i;
// prevent page scroll to fragment
//if (($.browser.msie || $.browser.opera) && !o.remote) {
if ($.browser.msie || $.browser.opera) {
var $toShow = $(location.hash), toShowId = $toShow.attr('id');
$toShow.attr('id', '');
setTimeout(function() {
$toShow.attr('id', toShowId); // restore id
}, 500);
}
scrollTo(0, 0);
return false; // break
}
} else if (o.cookie) {
o.initial = parseInt($.cookie( $.ui.tabs.INSTANCE_KEY + $.data(self.source) )) || 0;
return false; // break
} else if ( $(a).parent('li').hasClass(o.selectedClass) ) {
o.initial = i;
return false; // break
}
});
var n = this.$tabs.length;
while ( this.$tabs.eq(o.initial).parent('li').hasClass(o.disabledClass) && n) {
o.initial = ++o.initial < this.$tabs.length ? o.initial : 0;
n--;
}
if (!n) { // all tabs disabled, set option unselected to true
o.unselected = o.unselect = true;
}
// highlight selected tab
var $lis = this.$tabs.parent('li');
this.$panels.addClass(o.hideClass);
$lis.removeClass(o.selectedClass);
if (!o.unselected) {
this.$panels.eq(o.initial).show().removeClass(o.hideClass); // use show and remove class to show in any case no matter how it has been hidden before
$lis.eq(o.initial).addClass(o.selectedClass);
}
// load if remote tab
var href = !o.unselected && $.data(this.$tabs[o.initial], 'href');
if (href) {
this.load(o.initial + 1, href);
}
}
// setup animations
var showAnim = {}, showSpeed = o.fxShowSpeed || o.fxSpeed,
hideAnim = {}, hideSpeed = o.fxHideSpeed || o.fxSpeed;
if (o.fxSlide || o.fxFade) {
if (o.fxSlide) {
showAnim['height'] = 'show';
hideAnim['height'] = 'hide';
}
if (o.fxFade) {
showAnim['opacity'] = 'show';
hideAnim['opacity'] = 'hide';
}
} else {
if (o.fxShow) {
showAnim = o.fxShow;
} else { // use some kind of animation to prevent browser scrolling to the tab
showAnim['min-width'] = 0; // avoid opacity, causes flicker in Firefox
showSpeed = 1; // as little as 1 is sufficient
}
if (o.fxHide) {
hideAnim = o.fxHide;
} else { // use some kind of animation to prevent browser scrolling to the tab
hideAnim['min-width'] = 0; // avoid opacity, causes flicker in Firefox
hideSpeed = 1; // as little as 1 is sufficient
}
}
// reset some styles to maintain print style sheets etc.
var resetCSS = { display: '', overflow: '', height: '' };
if (!$.browser.msie) { // not in IE to prevent ClearType font issue
resetCSS['opacity'] = '';
}
// Hide a tab, animation prevents browser scrolling to fragment,
// $show is optional.
function hideTab(clicked, $hide, $show) {
$hide.animate(hideAnim, hideSpeed, function() { //
$hide.addClass(o.hideClass).css(resetCSS); // maintain flexible height and accessibility in print etc.
if ($.browser.msie && hideAnim['opacity']) {
$hide[0].style.filter = '';
}
o.hide(clicked, $hide[0], $show && $show[0] || null);
if ($show) {
showTab(clicked, $show, $hide);
}
});
}
// Show a tab, animation prevents browser scrolling to fragment,
// $hide is optional
function showTab(clicked, $show, $hide) {
if (!(o.fxSlide || o.fxFade || o.fxShow)) {
$show.css('display', 'block'); // prevent occasionally occuring flicker in Firefox cause by gap between showing and hiding the tab panels
}
$show.animate(showAnim, showSpeed, function() {
$show.removeClass(o.hideClass).css(resetCSS); // maintain flexible height and accessibility in print etc.
if ($.browser.msie && showAnim['opacity']) {
$show[0].style.filter = '';
}
o.show(clicked, $show[0], $hide && $hide[0] || null);
});
}
// switch a tab
function switchTab(clicked, $hide, $show) {
/*if (o.bookmarkable && trueClick) { // add to history only if true click occured, not a triggered click
$.ajaxHistory.update(clicked.hash);
}*/
$(clicked).parents('li:eq(0)').addClass(o.selectedClass)
.siblings().removeClass(o.selectedClass);
hideTab(clicked, $hide, $show);
}
// attach tab click event, avoid duplicates from former tabifying
this.$tabs.unbind(o.event).bind(o.event, function() {
//var trueClick = e.clientX; // add to history only if true click occured, not a triggered click
var $li = $(this).parent('li'),
$hide = self.$panels.filter(':visible'),
$show = $(this.hash);
// If tab is already selected and not unselectable or tab disabled or click callback returns false stop here.
// Check if click handler returns false last so that it is not executed for a disabled tab!
if (($li.hasClass(o.selectedClass) && !o.unselect) || $li.hasClass(o.disabledClass)
|| o.click(this, $show[0], $hide[0]) === false) {
this.blur();
return false;
}
if (o.cookie) {
$.cookie($.ui.tabs.INSTANCE_KEY + $.data(self.source), self.$tabs.index(this), o.cookie);
}
// if tab may be closed
if (o.unselect) {
if ($li.hasClass(o.selectedClass)) {
$li.removeClass(o.selectedClass);
self.$panels.stop();
hideTab(this, $hide);
this.blur();
return false;
} else if (!$hide.length) {
self.$panels.stop();
if ($.data(this, 'href')) { // remote tab
var a = this;
self.load(self.$tabs.index(this) + 1, $.data(this, 'href'), function() {
$li.addClass(o.selectedClass).addClass(o.unselectClass);
showTab(a, $show);
});
} else {
$li.addClass(o.selectedClass).addClass(o.unselectClass);
showTab(this, $show);
}
this.blur();
return false;
}
}
// stop possibly running animations
self.$panels.stop();
// show new tab
if ($show.length) {
// prevent scrollbar scrolling to 0 and than back in IE7, happens only if bookmarking/history is enabled
/*if ($.browser.msie && o.bookmarkable) {
var showId = this.hash.replace('#', '');
$show.attr('id', '');
setTimeout(function() {
$show.attr('id', showId); // restore id
}, 0);
}*/
if ($.data(this, 'href')) { // remote tab
var a = this;
self.load(self.$tabs.index(this) + 1, $.data(this, 'href'), function() {
switchTab(a, $hide, $show);
});
} else {
switchTab(this, $hide, $show);
}
// Set scrollbar to saved position - need to use timeout with 0 to prevent browser scroll to target of hash
/*var scrollX = window.pageXOffset || document.documentElement && document.documentElement.scrollLeft || document.body.scrollLeft || 0;
var scrollY = window.pageYOffset || document.documentElement && document.documentElement.scrollTop || document.body.scrollTop || 0;
setTimeout(function() {
scrollTo(scrollX, scrollY);
}, 0);*/
} else {
throw 'jQuery UI Tabs: Mismatching fragment identifier.';
}
this.blur(); // prevent IE from keeping other link focussed when using the back button
//return o.bookmarkable && !!trueClick; // convert trueClick == undefined to Boolean required in IE
return false;
});
},
add: function(url, text, position) {
if (url && text) {
position = position || this.$tabs.length; // append by default
var o = this.options,
$li = $(o.tabTemplate.replace(/#\{href\}/, url).replace(/#\{text\}/, text));
var id = url.indexOf('#') == 0 ? url.replace('#', '') : this.tabId( $('a:first-child', $li)[0] );
// try to find an existing element before creating a new one
var $panel = $('#' + id);
$panel = $panel.length && $panel
|| $(o.panelTemplate).attr('id', id).addClass(o.panelClass).addClass(o.hideClass);
if (position >= this.$tabs.length) {
$li.appendTo(this.source);
$panel.appendTo(this.source.parentNode);
} else {
$li.insertBefore(this.$tabs.eq(position - 1).parent('li'));
$panel.insertBefore(this.$panels[position - 1]);
}
this.tabify();
if (this.$tabs.length == 1) {
$li.addClass(o.selectedClass);
$panel.removeClass(o.hideClass);
var href = $.data(this.$tabs[0], 'href');
if (href) {
this.load(position + 1, href);
}
}
o.add(this.$tabs[position], this.$panels[position]); // callback
} else {
throw 'jQuery UI Tabs: Not enough arguments to add tab.';
}
},
remove: function(position) {
if (position && position.constructor == Number) {
var o = this.options, $li = this.$tabs.eq(position - 1).parent('li').remove(),
$panel = this.$panels.eq(position - 1).remove();
// If selected tab was removed focus tab to the right or
// tab to the left if last tab was removed.
if ($li.hasClass(o.selectedClass) && this.$tabs.length > 1) {
this.click(position + (position < this.$tabs.length ? 1 : -1));
}
this.tabify();
o.remove($li.end()[0], $panel[0]); // callback
}
},
enable: function(position) {
var o = this.options, $li = this.$tabs.eq(position - 1).parent('li');
$li.removeClass(o.disabledClass);
if ($.browser.safari) { // fix disappearing tab (that used opacity indicating disabling) after enabling in Safari 2...
$li.css('display', 'inline-block');
setTimeout(function() {
$li.css('display', 'block')
}, 0)
}
o.enable(this.$tabs[position - 1], this.$panels[position - 1]); // callback
},
disable: function(position) {
var o = this.options;
this.$tabs.eq(position - 1).parent('li').addClass(o.disabledClass);
o.disable(this.$tabs[position - 1], this.$panels[position - 1]); // callback
},
click: function(position) {
this.$tabs.eq(position - 1).trigger(this.options.event);
},
load: function(position, url, callback) {
var self = this, o = this.options,
$a = this.$tabs.eq(position - 1), a = $a[0], $span = $('span', a);
// shift arguments
if (url && url.constructor == Function) {
callback = url;
url = null;
}
// set new URL or get existing
if (url) {
$.data(a, 'href', url);
} else {
url = $.data(a, 'href');
}
// load
if (o.spinner) {
$.data(a, 'title', $span.html());
$span.html('<em>' + o.spinner + '</em>');
}
var finish = function() {
self.$tabs.filter('.' + o.loadingClass).each(function() {
$(this).removeClass(o.loadingClass);
if (o.spinner) {
$('span', this).html( $.data(this, 'title') );
}
});
self.xhr = null;
};
var ajaxOptions = $.extend(o.ajaxOptions, {
url: url,
success: function(r) {
$(a.hash).html(r);
finish();
// This callback is required because the switch has to take
// place after loading has completed.
if (callback && callback.constructor == Function) {
callback();
}
if (o.cache) {
$.removeData(a, 'href'); // if loaded once do not load them again
}
o.load(self.$tabs[position - 1], self.$panels[position - 1]); // callback
}
});
if (this.xhr) {
// terminate pending requests from other tabs and restore title
this.xhr.abort();
finish();
}
$a.addClass(o.loadingClass);
setTimeout(function() { // timeout is again required in IE, "wait" for id being restored
self.xhr = $.ajax(ajaxOptions);
}, 0);
},
href: function(position, href) {
$.data(this.$tabs.eq(position - 1)[0], 'href', href);
}
});
})(jQuery);