Tabs: solved spinner issues and ajax loading not being stopped when selecting a static page tab, fixes #4109, #3929

tests/unit/tabs/tabs.html

@@ -24,9 +24,9 @@
 	<div id="main">
 		<div id="tabs1">
 			<ul>
-				<li><a href="#fragment-1">1</a></li>
+				<li><a href="#fragment-1"><span>1</span></a></li>
-				<li><a href="#fragment-2">2</a></li>
+				<li><a href="#fragment-2"><span>2</span></a></li>
-				<li><a href="#fragment-3">3</a></li>
+				<li><a href="#fragment-3"><span>3</span></a></li>
 			</ul>
 			<div id="fragment-1"></div>
 			<div id="fragment-2"></div>
@@ -34,9 +34,9 @@
 		</div>
 		<div id="tabs2">
 			<ul>
-				<li><a href="#colon:test">1</a></li>
+				<li><a href="#colon:test"><span>1</span></a></li>
-				<li><a href="#inline-style">2</a></li>
+				<li><a href="#inline-style"><span>2</span></a></li>
-				<li><a href="test.html#test">1</a></li>
+				<li><a href="test.html#test"><span>3</span></a></li>
 			</ul>
 			<div id="colon:test"></div>
 			<div style="height: 300px;" id="inline-style"></div>

tests/unit/tabs/tabs_core.js

@@ -7,4 +7,33 @@ var el;
 
 module("tabs: core");
 
+test('ajax', function() {
+	expect(4);
+	stop();
+	
+	el = $('#tabs2');
+	
+	el.tabs({
+		selected: 2,
+		load: function() {
+			// spinner: default spinner
+			equals($('li:eq(2) > a > span', el).length, 1, "should restore tab markup after spinner is removed");
+			equals($('li:eq(2) > a > span', el).html(), '3', "should restore tab label after spinner is removed");
+			el.tabs('destroy');
+			el.tabs({
+				selected: 2,
+				spinner: '<img src="spinner.gif" alt="">',
+				load: function() {
+					// spinner: image
+					equals($('li:eq(2) > a > span', el).length, 1, "should restore tab markup after spinner is removed");
+					equals($('li:eq(2) > a > span', el).html(), '3', "should restore tab label after spinner is removed");
+					start();
+				}
+			});			
+		}
+	});
+	
+});
+	
+	
 })(jQuery);

tests/unit/tabs/tabs_defaults.js

@@ -12,7 +12,7 @@ var tabs_defaults = {
 	fx: null,
 	idPrefix: 'ui-tabs-',
 	panelTemplate: '<div></div>',
-	spinner: 'Loading&#8230;',
+	spinner: '<em>Loading&#8230;</em>',
 	tabTemplate: '<li><a href="#{href}"><span>#{label}</span></a></li>'
 };
 

tests/unit/tabs/test.html

@@ -0,0 +1 @@
+<p>&#8230;content loaded via Ajax.</p>

themes/base/ui.tabs.css

@@ -5,7 +5,7 @@
 .ui-tabs .ui-tabs-nav li { position: relative; float: left; border-bottom-width: 0 !important; margin: 0 .2em -1px 0; padding: 0; }
 .ui-tabs .ui-tabs-nav li a { float: left; text-decoration: none; padding: .5em 1em; }
 .ui-tabs .ui-tabs-nav li.ui-tabs-selected { padding-bottom: .1em; border-bottom-width: 0; }
-.ui-tabs .ui-tabs-nav li.ui-tabs-selected a { cursor: text; }
+.ui-tabs .ui-tabs-nav li.ui-tabs-selected a, .ui-tabs .ui-tabs-nav li.ui-state-processing a { cursor: text; }
 .ui-tabs .ui-tabs-nav li a, .ui-tabs.ui-tabs-collapsible .ui-tabs-nav li.ui-tabs-selected a { cursor: pointer; } /* first selector in group seems obsolete, but required to overcome bug in Opera applying cursor: text overall if defined elsewhere... */
 .ui-tabs .ui-tabs-panel { padding: 1em 1.4em; display: block; border-width: 0; background: none; }
 .ui-tabs .ui-tabs-hide { display: none !important; }

ui/ui.tabs.js

@@ -58,6 +58,16 @@ $.widget("ui.tabs", {
 		};
 	},
 
+	_cleanup: function() {
+		// restore all former loading tabs labels
+		this.$lis.filter('.ui-state-processing').removeClass('ui-state-processing')
+				.find('span:data(label.tabs)')
+				.each(function() {
+					var el = $(this);
+					el.html(el.data('label.tabs'));
+				});
+	},
+
 	_tabify: function(init) {
 
 		this.list = this.element.children('ul:first, ol:first').eq(0);
@@ -276,7 +286,7 @@ $.widget("ui.tabs", {
 			// for a disabled or loading tab!
 			if (($li.hasClass('ui-tabs-selected') && !o.collapsible)
 				|| $li.hasClass('ui-state-disabled')
-				|| $(this).hasClass('ui-tabs-loading')
+				|| $li.hasClass('ui-state-processing')
 				|| self._trigger('select', null, self._ui(this, $show[0])) === false
 				) {
 				this.blur();
@@ -285,6 +295,8 @@ $.widget("ui.tabs", {
 
 			o.selected = self.$tabs.index(this);
 
+			self.abort();
+
 			// if tab may be closed TODO avoid redundant code in this block
 			if (o.collapsible) {
 				if ($li.hasClass('ui-tabs-selected')) {
@@ -292,13 +304,11 @@ $.widget("ui.tabs", {
 					if (o.cookie) self._cookie(o.selected, o.cookie);
 					$li.removeClass('ui-tabs-selected ui-state-active')
 						.addClass('ui-state-default');
-					self.$panels.stop();
 					hideTab(this, $hide);
 					this.blur();
 					return false;
 				} else if (!$hide.length) {
 					if (o.cookie) self._cookie(o.selected, o.cookie);
-					self.$panels.stop();
 					var a = this;
 					self.load(self.$tabs.index(this), function() {
 						$li.addClass('ui-tabs-selected ui-state-active')
@@ -312,9 +322,6 @@ $.widget("ui.tabs", {
 
 			if (o.cookie) self._cookie(o.selected, o.cookie);
 
-			// stop possibly running animations
-			self.$panels.stop(false, true);
-
 			// show new tab
 			if ($show.length) {
 				var a = this;
@@ -327,8 +334,10 @@ $.widget("ui.tabs", {
 						showTab(a, $show);
 					}
 				);
-			} else
+			}
+			else {
 				throw 'jQuery UI Tabs: Mismatching fragment identifier.';
+			}
 
 			// Prevent IE from keeping other link focussed when using the back button
 			// and remove dotted border from clicked link. This is controlled via CSS
@@ -487,8 +496,10 @@ $.widget("ui.tabs", {
 	load: function(index, callback) { // callback is for internal usage only
 		callback = callback || function() {};
 
-		var self = this, o = this.options, $a = this.$tabs.eq(index), a = $a[0],
+		var self = this, o = this.options, a = this.$tabs.eq(index)[0],
-				bypassCache = callback == undefined, url = $a.data('load.tabs');
+				bypassCache = callback == undefined, url = $.data(a, 'load.tabs');
+
+		this.abort();
 
 		// not remote or from cache - just finish with callback
 		if (!url || !bypassCache && $.data(a, 'cache.tabs')) {
@@ -497,55 +508,53 @@ $.widget("ui.tabs", {
 		}
 
 		// load remote from here on
-
+		this.$lis.eq(index).addClass('ui-state-processing');
-		var inner = function(parent) {
-			var $parent = $(parent), $inner = $parent.find('*:last');
-			return $inner.length && $inner.is(':not(img)') && $inner || $parent;
-		};
-		var cleanup = function() {
-			self.$tabs.filter('.ui-tabs-loading').removeClass('ui-tabs-loading')
-					.each(function() {
-						if (o.spinner)
-							inner(this).parent().html(inner(this).data('label.tabs'));
-					});
-			self.xhr = null;
-		};
 
 		if (o.spinner) {
-			var label = inner(a).html();
+			var span = $('span', a);
-			inner(a).wrapInner('<em></em>')
+			span.data('label.tabs', span.html()).html(o.spinner);
-				.find('em').data('label.tabs', label).html(o.spinner);
 		}
 
-		var ajaxOptions = $.extend({}, o.ajaxOptions, {
+		this.xhr = $.ajax($.extend({}, o.ajaxOptions, {
 			url: url,
 			success: function(r, s) {
 				$(self._sanitizeSelector(a.hash)).html(r);
-				cleanup();
 
-				if (o.cache)
+				// take care of tab labels
+				self._cleanup();
+
+				if (o.cache) {
 					$.data(a, 'cache.tabs', true); // if loaded once do not load them again
+				}
 
 				// callbacks
 				self._trigger('load', null, self._ui(self.$tabs[index], self.$panels[index]));
 				try {
 					o.ajaxOptions.success(r, s);
 				}
-				catch (er) {}
+				catch (e) {}
 
 				// This callback is required because the switch has to take
 				// place after loading has completed. Call last in order to
 				// fire load before show callback...
 				callback();
 			}
-		});
+		}));
+	},
+
+	abort: function() {
+		// stop possibly running animations
+		this.$panels.stop(false, true);
+
+		// terminate pending requests from other tabs
 		if (this.xhr) {
-			// terminate pending requests from other tabs and restore tab label
 			this.xhr.abort();
-			cleanup();
+			delete this.xhr;
 		}
-		$a.addClass('ui-tabs-loading');
+
-		self.xhr = $.ajax(ajaxOptions);
+		// take care of tab labels
+		this._cleanup();
+
 	},
 
 	url: function(index, url) {
@@ -571,7 +580,7 @@ $.extend($.ui.tabs, {
 		fx: null, // e.g. { height: 'toggle', opacity: 'toggle', duration: 200 }
 		idPrefix: 'ui-tabs-',
 		panelTemplate: '<div></div>',
-		spinner: 'Loading&#8230;',
+		spinner: '<em>Loading&#8230;</em>',
 		tabTemplate: '<li><a href="#{href}"><span>#{label}</span></a></li>'
 	}
 });