wradmin/wradmin/public/yui/tabview/tabview-debug.js

   1 /*
   2 Copyright (c) 2009, Yahoo! Inc. All rights reserved.
   3 Code licensed under the BSD License:
   4 http://developer.yahoo.net/yui/license.txt
   5 version: 2.7.0
   6 */
   7 (function() {
   8
   9     /**
  10      * The tabview module provides a widget for managing content bound to tabs.
  11      * @module tabview
  12      * @requires yahoo, dom, event, element
  13      *
  14      */
  15
  16     var Y = YAHOO.util,
  17         Dom = Y.Dom,
  18         Event = Y.Event,
  19         document = window.document,
  20
  21         // STRING CONSTANTS
  22         ACTIVE = 'active',
  23         ACTIVE_INDEX = 'activeIndex',
  24         ACTIVE_TAB = 'activeTab',
  25         CONTENT_EL = 'contentEl',
  26         ELEMENT = 'element',
  27
  28     /**
  29      * A widget to control tabbed views.
  30      * @namespace YAHOO.widget
  31      * @class TabView
  32      * @extends YAHOO.util.Element
  33      * @constructor
  34      * @param {HTMLElement | String | Object} el(optional) The html
  35      * element that represents the TabView, or the attribute object to use.
  36      * An element will be created if none provided.
  37      * @param {Object} attr (optional) A key map of the tabView's
  38      * initial attributes.  Ignored if first arg is attributes object.
  39      */
  40     TabView = function(el, attr) {
  41         attr = attr || {};
  42         if (arguments.length == 1 && !YAHOO.lang.isString(el) && !el.nodeName) {
  43             attr = el; // treat first arg as attr object
  44             el = attr.element || null;
  45         }
  46
  47         if (!el && !attr.element) { // create if we dont have one
  48             el = this._createTabViewElement(attr);
  49         }
  50         TabView.superclass.constructor.call(this, el, attr);
  51     };
  52
  53     YAHOO.extend(TabView, Y.Element, {
  54         /**
  55          * The className to add when building from scratch.
  56          * @property CLASSNAME
  57          * @default "navset"
  58          */
  59         CLASSNAME: 'yui-navset',
  60
  61         /**
  62          * The className of the HTMLElement containing the TabView's tab elements
  63          * to look for when building from existing markup, or to add when building
  64          * from scratch.
  65          * All childNodes of the tab container are treated as Tabs when building
  66          * from existing markup.
  67          * @property TAB_PARENT_CLASSNAME
  68          * @default "nav"
  69          */
  70         TAB_PARENT_CLASSNAME: 'yui-nav',
  71
  72         /**
  73          * The className of the HTMLElement containing the TabView's label elements
  74          * to look for when building from existing markup, or to add when building
  75          * from scratch.
  76          * All childNodes of the content container are treated as content elements when
  77          * building from existing markup.
  78          * @property CONTENT_PARENT_CLASSNAME
  79          * @default "nav-content"
  80          */
  81         CONTENT_PARENT_CLASSNAME: 'yui-content',
  82
  83         _tabParent: null,
  84         _contentParent: null,
  85
  86         /**
  87          * Adds a Tab to the TabView instance.
  88          * If no index is specified, the tab is added to the end of the tab list.
  89          * @method addTab
  90          * @param {YAHOO.widget.Tab} tab A Tab instance to add.
  91          * @param {Integer} index The position to add the tab.
  92          * @return void
  93          */
  94         addTab: function(tab, index) {
  95             var tabs = this.get('tabs'),
  96                 before = this.getTab(index),
  97                 tabParent = this._tabParent,
  98                 contentParent = this._contentParent,
  99                 tabElement = tab.get(ELEMENT),
 100                 contentEl = tab.get(CONTENT_EL);
 101
 102             if (!tabs) { // not ready yet
 103                 this._queue[this._queue.length] = ['addTab', arguments];
 104                 return false;
 105             }
 106
 107             index = (index === undefined) ? tabs.length : index;
 108
 109             if ( before ) {
 110                 tabParent.insertBefore(tabElement, before.get(ELEMENT));
 111             } else {
 112                 tabParent.appendChild(tabElement);
 113             }
 114
 115             if ( contentEl && !Dom.isAncestor(contentParent, contentEl) ) {
 116                 contentParent.appendChild(contentEl);
 117             }
 118
 119             if ( !tab.get(ACTIVE) ) {
 120                 tab.set('contentVisible', false, true); /* hide if not active */
 121             } else {
 122                 this.set(ACTIVE_TAB, tab, true);
 123
 124             }
 125
 126             this._initTabEvents(tab);
 127             tabs.splice(index, 0, tab);
 128         },
 129
 130         _initTabEvents: function(tab) {
 131             tab.addListener( tab.get('activationEvent'), tab._onActivate, this, tab);
 132
 133             tab.addListener('activationEventChange', function(e) {
 134                 if (e.prevValue != e.newValue) {
 135                     tab.removeListener(e.prevValue, tab._onActivate);
 136                     tab.addListener(e.newValue, tab._onActivate, this, tab);
 137                 }
 138             });
 139         },
 140
 141         /**
 142          * Routes childNode events.
 143          * @method DOMEventHandler
 144          * @param {event} e The Dom event that is being handled.
 145          * @return void
 146          */
 147         DOMEventHandler: function(e) {
 148             var target = Event.getTarget(e),
 149                 tabParent = this._tabParent,
 150                 tabs = this.get('tabs'),
 151                 tab,
 152                 tabEl,
 153                 contentEl;
 154
 155
 156             if (Dom.isAncestor(tabParent, target) ) {
 157                 for (var i = 0, len = tabs.length; i < len; i++) {
 158                     tabEl = tabs[i].get(ELEMENT);
 159                     contentEl = tabs[i].get(CONTENT_EL);
 160
 161                     if ( target == tabEl || Dom.isAncestor(tabEl, target) ) {
 162                         tab = tabs[i];
 163                         break; // note break
 164                     }
 165                 }
 166
 167                 if (tab) {
 168                     tab.fireEvent(e.type, e);
 169                 }
 170             }
 171         },
 172
 173         /**
 174          * Returns the Tab instance at the specified index.
 175          * @method getTab
 176          * @param {Integer} index The position of the Tab.
 177          * @return YAHOO.widget.Tab
 178          */
 179         getTab: function(index) {
 180             return this.get('tabs')[index];
 181         },
 182
 183         /**
 184          * Returns the index of given tab.
 185          * @method getTabIndex
 186          * @param {YAHOO.widget.Tab} tab The tab whose index will be returned.
 187          * @return int
 188          */
 189         getTabIndex: function(tab) {
 190             var index = null,
 191                 tabs = this.get('tabs');
 192             for (var i = 0, len = tabs.length; i < len; ++i) {
 193                 if (tab == tabs[i]) {
 194                     index = i;
 195                     break;
 196                 }
 197             }
 198
 199             return index;
 200         },
 201
 202         /**
 203          * Removes the specified Tab from the TabView.
 204          * @method removeTab
 205          * @param {YAHOO.widget.Tab} item The Tab instance to be removed.
 206          * @return void
 207          */
 208         removeTab: function(tab) {
 209             var tabCount = this.get('tabs').length,
 210                 index = this.getTabIndex(tab);
 211
 212             if ( tab === this.get(ACTIVE_TAB) ) {
 213                 if (tabCount > 1) { // select another tab
 214                     if (index + 1 === tabCount) { // if last, activate previous
 215                         this.set(ACTIVE_INDEX, index - 1);
 216                     } else { // activate next tab
 217                         this.set(ACTIVE_INDEX, index + 1);
 218                     }
 219                 } else { // no more tabs
 220                     this.set(ACTIVE_TAB, null);
 221                 }
 222             }
 223
 224             this._tabParent.removeChild( tab.get(ELEMENT) );
 225             this._contentParent.removeChild( tab.get(CONTENT_EL) );
 226             this._configs.tabs.value.splice(index, 1);
 227
 228             tab.fireEvent('remove', { type: 'remove', tabview: this });
 229         },
 230
 231         /**
 232          * Provides a readable name for the TabView instance.
 233          * @method toString
 234          * @return String
 235          */
 236         toString: function() {
 237             var name = this.get('id') || this.get('tagName');
 238             return "TabView " + name;
 239         },
 240
 241         /**
 242          * The transiton to use when switching between tabs.
 243          * @method contentTransition
 244          */
 245         contentTransition: function(newTab, oldTab) {
 246             if (newTab) {
 247                 newTab.set('contentVisible', true);
 248             }
 249             if (oldTab) {
 250                 oldTab.set('contentVisible', false);
 251             }
 252         },
 253
 254         /**
 255          * setAttributeConfigs TabView specific properties.
 256          * @method initAttributes
 257          * @param {Object} attr Hash of initial attributes
 258          */
 259         initAttributes: function(attr) {
 260             TabView.superclass.initAttributes.call(this, attr);
 261
 262             if (!attr.orientation) {
 263                 attr.orientation = 'top';
 264             }
 265
 266             var el = this.get(ELEMENT);
 267
 268             if (!Dom.hasClass(el, this.CLASSNAME)) {
 269                 Dom.addClass(el, this.CLASSNAME);
 270             }
 271
 272             /**
 273              * The Tabs belonging to the TabView instance.
 274              * @attribute tabs
 275              * @type Array
 276              */
 277             this.setAttributeConfig('tabs', {
 278                 value: [],
 279                 readOnly: true
 280             });
 281
 282             /**
 283              * The container of the tabView's label elements.
 284              * @property _tabParent
 285              * @private
 286              * @type HTMLElement
 287              */
 288             this._tabParent =
 289                     this.getElementsByClassName(this.TAB_PARENT_CLASSNAME,
 290                             'ul' )[0] || this._createTabParent();
 291
 292             /**
 293              * The container of the tabView's content elements.
 294              * @property _contentParent
 295              * @type HTMLElement
 296              * @private
 297              */
 298             this._contentParent =
 299                     this.getElementsByClassName(this.CONTENT_PARENT_CLASSNAME,
 300                             'div')[0] ||  this._createContentParent();
 301
 302             /**
 303              * How the Tabs should be oriented relative to the TabView.
 304              * @attribute orientation
 305              * @type String
 306              * @default "top"
 307              */
 308             this.setAttributeConfig('orientation', {
 309                 value: attr.orientation,
 310                 method: function(value) {
 311                     var current = this.get('orientation');
 312                     this.addClass('yui-navset-' + value);
 313
 314                     if (current != value) {
 315                         this.removeClass('yui-navset-' + current);
 316                     }
 317
 318                     if (value === 'bottom') {
 319                         this.appendChild(this._tabParent);
 320                     }
 321                 }
 322             });
 323
 324             /**
 325              * The index of the tab currently active.
 326              * @attribute activeIndex
 327              * @type Int
 328              */
 329             this.setAttributeConfig(ACTIVE_INDEX, {
 330                 value: attr.activeIndex,
 331                 method: function(value) {
 332                 },
 333                 validator: function(value) {
 334                     var ret = true;
 335                     if (value && this.getTab(value).get('disabled')) { // cannot activate if disabled
 336                         ret = false;
 337                     }
 338                     return ret;
 339                 }
 340             });
 341
 342             /**
 343              * The tab currently active.
 344              * @attribute activeTab
 345              * @type YAHOO.widget.Tab
 346              */
 347             this.setAttributeConfig(ACTIVE_TAB, {
 348                 value: attr.activeTab,
 349                 method: function(tab) {
 350                     var activeTab = this.get(ACTIVE_TAB);
 351
 352                     if (tab) {
 353                         tab.set(ACTIVE, true);
 354                     }
 355
 356                     if (activeTab && activeTab !== tab) {
 357                         activeTab.set(ACTIVE, false);
 358                     }
 359
 360                     if (activeTab && tab !== activeTab) { // no transition if only 1
 361                         this.contentTransition(tab, activeTab);
 362                     } else if (tab) {
 363                         tab.set('contentVisible', true);
 364                     }
 365                 },
 366                 validator: function(value) {
 367                     var ret = true;
 368                     if (value && value.get('disabled')) { // cannot activate if disabled
 369                         ret = false;
 370                     }
 371                     return ret;
 372                 }
 373             });
 374
 375             this.on('activeTabChange', this._onActiveTabChange);
 376             this.on('activeIndexChange', this._onActiveIndexChange);
 377
 378             YAHOO.log('attributes initialized', 'info', 'TabView');
 379             if ( this._tabParent ) {
 380                 this._initTabs();
 381             }
 382
 383             // Due to delegation we add all DOM_EVENTS to the TabView container
 384             // but IE will leak when unsupported events are added, so remove these
 385             this.DOM_EVENTS.submit = false;
 386             this.DOM_EVENTS.focus = false;
 387             this.DOM_EVENTS.blur = false;
 388
 389             for (var type in this.DOM_EVENTS) {
 390                 if ( YAHOO.lang.hasOwnProperty(this.DOM_EVENTS, type) ) {
 391                     this.addListener.call(this, type, this.DOMEventHandler);
 392                 }
 393             }
 394         },
 395
 396         /**
 397          * Removes selected state from the given tab if it is the activeTab
 398          * @method deselectTab
 399          * @param {Int} index The tab index to deselect
 400          */
 401         deselectTab: function(index) {
 402             if (this.getTab(index) === this.get('activeTab')) {
 403                 this.set('activeTab', null);
 404             }
 405         },
 406
 407         /**
 408          * Makes the tab at the given index the active tab
 409          * @method selectTab
 410          * @param {Int} index The tab index to be made active
 411          */
 412         selectTab: function(index) {
 413             this.set('activeTab', this.getTab(index));
 414         },
 415
 416         _onActiveTabChange: function(e) {
 417             var activeIndex = this.get(ACTIVE_INDEX),
 418                 newIndex = this.getTabIndex(e.newValue);
 419
 420             if (activeIndex !== newIndex) {
 421                 if (!(this.set(ACTIVE_INDEX, newIndex)) ) { // NOTE: setting
 422                      // revert if activeIndex update fails (cancelled via beforeChange)
 423                     this.set(ACTIVE_TAB, e.prevValue);
 424                 }
 425             }
 426         },
 427
 428         _onActiveIndexChange: function(e) {
 429             // no set if called from ActiveTabChange event
 430             if (e.newValue !== this.getTabIndex(this.get(ACTIVE_TAB))) {
 431                 if (!(this.set(ACTIVE_TAB, this.getTab(e.newValue))) ) { // NOTE: setting
 432                      // revert if activeTab update fails (cancelled via beforeChange)
 433                     this.set(ACTIVE_INDEX, e.prevValue);
 434                 }
 435             }
 436         },
 437
 438         /**
 439          * Creates Tab instances from a collection of HTMLElements.
 440          * @method _initTabs
 441          * @private
 442          * @return void
 443          */
 444         _initTabs: function() {
 445             var tabs = Dom.getChildren(this._tabParent),
 446                 contentElements = Dom.getChildren(this._contentParent),
 447                 activeIndex = this.get(ACTIVE_INDEX),
 448                 tab,
 449                 attr,
 450                 active;
 451
 452             for (var i = 0, len = tabs.length; i < len; ++i) {
 453                 attr = {};
 454
 455                 if (contentElements[i]) {
 456                     attr.contentEl = contentElements[i];
 457                 }
 458
 459                 tab = new YAHOO.widget.Tab(tabs[i], attr);
 460                 this.addTab(tab);
 461
 462                 if (tab.hasClass(tab.ACTIVE_CLASSNAME) ) {
 463                     active = tab;
 464                 }
 465             }
 466             if (activeIndex) {
 467                 this.set(ACTIVE_TAB, this.getTab(activeIndex));
 468             } else {
 469                 this._configs.activeTab.value = active; // dont invoke method
 470                 this._configs.activeIndex.value = this.getTabIndex(active);
 471             }
 472         },
 473
 474         _createTabViewElement: function(attr) {
 475             var el = document.createElement('div');
 476
 477             if ( this.CLASSNAME ) {
 478                 el.className = this.CLASSNAME;
 479             }
 480
 481             YAHOO.log('TabView Dom created', 'info', 'TabView');
 482             return el;
 483         },
 484
 485         _createTabParent: function(attr) {
 486             var el = document.createElement('ul');
 487
 488             if ( this.TAB_PARENT_CLASSNAME ) {
 489                 el.className = this.TAB_PARENT_CLASSNAME;
 490             }
 491
 492             this.get(ELEMENT).appendChild(el);
 493
 494             return el;
 495         },
 496
 497         _createContentParent: function(attr) {
 498             var el = document.createElement('div');
 499
 500             if ( this.CONTENT_PARENT_CLASSNAME ) {
 501                 el.className = this.CONTENT_PARENT_CLASSNAME;
 502             }
 503
 504             this.get(ELEMENT).appendChild(el);
 505
 506             return el;
 507         }
 508     });
 509
 510
 511     YAHOO.widget.TabView = TabView;
 512 })();
 513
 514 (function() {
 515     var Y = YAHOO.util,
 516         Dom = Y.Dom,
 517         Lang = YAHOO.lang,
 518
 519
 520     // STRING CONSTANTS
 521         ACTIVE_TAB = 'activeTab',
 522         LABEL = 'label',
 523         LABEL_EL = 'labelEl',
 524         CONTENT = 'content',
 525         CONTENT_EL = 'contentEl',
 526         ELEMENT = 'element',
 527         CACHE_DATA = 'cacheData',
 528         DATA_SRC = 'dataSrc',
 529         DATA_LOADED = 'dataLoaded',
 530         DATA_TIMEOUT = 'dataTimeout',
 531         LOAD_METHOD = 'loadMethod',
 532         POST_DATA = 'postData',
 533         DISABLED = 'disabled',
 534
 535     /**
 536      * A representation of a Tab's label and content.
 537      * @namespace YAHOO.widget
 538      * @class Tab
 539      * @extends YAHOO.util.Element
 540      * @constructor
 541      * @param element {HTMLElement | String} (optional) The html element that
 542      * represents the TabView. An element will be created if none provided.
 543      * @param {Object} properties A key map of initial properties
 544      */
 545     Tab = function(el, attr) {
 546         attr = attr || {};
 547         if (arguments.length == 1 && !Lang.isString(el) && !el.nodeName) {
 548             attr = el;
 549             el = attr.element;
 550         }
 551
 552         if (!el && !attr.element) {
 553             el = this._createTabElement(attr);
 554         }
 555
 556         this.loadHandler =  {
 557             success: function(o) {
 558                 this.set(CONTENT, o.responseText);
 559             },
 560             failure: function(o) {
 561             }
 562         };
 563
 564         Tab.superclass.constructor.call(this, el, attr);
 565
 566         this.DOM_EVENTS = {}; // delegating to tabView
 567     };
 568
 569     YAHOO.extend(Tab, YAHOO.util.Element, {
 570         /**
 571          * The default tag name for a Tab's inner element.
 572          * @property LABEL_INNER_TAGNAME
 573          * @type String
 574          * @default "em"
 575          */
 576         LABEL_TAGNAME: 'em',
 577
 578         /**
 579          * The class name applied to active tabs.
 580          * @property ACTIVE_CLASSNAME
 581          * @type String
 582          * @default "selected"
 583          */
 584         ACTIVE_CLASSNAME: 'selected',
 585
 586         /**
 587          * The class name applied to active tabs.
 588          * @property ACTIVE_CLASSNAME
 589          * @type String
 590          * @default "selected"
 591          */
 592         HIDDEN_CLASSNAME: 'yui-hidden',
 593
 594         /**
 595          * The title applied to active tabs.
 596          * @property ACTIVE_TITLE
 597          * @type String
 598          * @default "active"
 599          */
 600         ACTIVE_TITLE: 'active',
 601
 602         /**
 603          * The class name applied to disabled tabs.
 604          * @property DISABLED_CLASSNAME
 605          * @type String
 606          * @default "disabled"
 607          */
 608         DISABLED_CLASSNAME: DISABLED,
 609
 610         /**
 611          * The class name applied to dynamic tabs while loading.
 612          * @property LOADING_CLASSNAME
 613          * @type String
 614          * @default "disabled"
 615          */
 616         LOADING_CLASSNAME: 'loading',
 617
 618         /**
 619          * Provides a reference to the connection request object when data is
 620          * loaded dynamically.
 621          * @property dataConnection
 622          * @type Object
 623          */
 624         dataConnection: null,
 625
 626         /**
 627          * Object containing success and failure callbacks for loading data.
 628          * @property loadHandler
 629          * @type object
 630          */
 631         loadHandler: null,
 632
 633         _loading: false,
 634
 635         /**
 636          * Provides a readable name for the tab.
 637          * @method toString
 638          * @return String
 639          */
 640         toString: function() {
 641             var el = this.get(ELEMENT),
 642                 id = el.id || el.tagName;
 643             return "Tab " + id;
 644         },
 645
 646         /**
 647          * setAttributeConfigs TabView specific properties.
 648          * @method initAttributes
 649          * @param {Object} attr Hash of initial attributes
 650          */
 651         initAttributes: function(attr) {
 652             attr = attr || {};
 653             Tab.superclass.initAttributes.call(this, attr);
 654
 655             /**
 656              * The event that triggers the tab's activation.
 657              * @attribute activationEvent
 658              * @type String
 659              */
 660             this.setAttributeConfig('activationEvent', {
 661                 value: attr.activationEvent || 'click'
 662             });
 663
 664             /**
 665              * The element that contains the tab's label.
 666              * @attribute labelEl
 667              * @type HTMLElement
 668              */
 669             this.setAttributeConfig(LABEL_EL, {
 670                 value: attr[LABEL_EL] || this._getLabelEl(),
 671                 method: function(value) {
 672                     value = Dom.get(value);
 673                     var current = this.get(LABEL_EL);
 674
 675                     if (current) {
 676                         if (current == value) {
 677                             return false; // already set
 678                         }
 679
 680                         current.parentNode.replaceChild(value, current);
 681                         this.set(LABEL, value.innerHTML);
 682                     }
 683                 }
 684             });
 685
 686             /**
 687              * The tab's label text (or innerHTML).
 688              * @attribute label
 689              * @type String
 690              */
 691             this.setAttributeConfig(LABEL, {
 692                 value: attr.label || this._getLabel(),
 693                 method: function(value) {
 694                     var labelEl = this.get(LABEL_EL);
 695                     if (!labelEl) { // create if needed
 696                         this.set(LABEL_EL, this._createLabelEl());
 697                     }
 698
 699                     labelEl.innerHTML = value;
 700                 }
 701             });
 702
 703             /**
 704              * The HTMLElement that contains the tab's content.
 705              * @attribute contentEl
 706              * @type HTMLElement
 707              */
 708             this.setAttributeConfig(CONTENT_EL, {
 709                 value: attr[CONTENT_EL] || document.createElement('div'),
 710                 method: function(value) {
 711                     value = Dom.get(value);
 712                     var current = this.get(CONTENT_EL);
 713
 714                     if (current) {
 715                         if (current === value) {
 716                             return false; // already set
 717                         }
 718                         if (!this.get('selected')) {
 719                             Dom.addClass(value, 'yui-hidden');
 720                         }
 721                         current.parentNode.replaceChild(value, current);
 722                         this.set(CONTENT, value.innerHTML);
 723                     }
 724                 }
 725             });
 726
 727             /**
 728              * The tab's content.
 729              * @attribute content
 730              * @type String
 731              */
 732             this.setAttributeConfig(CONTENT, {
 733                 value: attr[CONTENT],
 734                 method: function(value) {
 735                     this.get(CONTENT_EL).innerHTML = value;
 736                 }
 737             });
 738
 739             /**
 740              * The tab's data source, used for loading content dynamically.
 741              * @attribute dataSrc
 742              * @type String
 743              */
 744             this.setAttributeConfig(DATA_SRC, {
 745                 value: attr.dataSrc
 746             });
 747
 748             /**
 749              * Whether or not content should be reloaded for every view.
 750              * @attribute cacheData
 751              * @type Boolean
 752              * @default false
 753              */
 754             this.setAttributeConfig(CACHE_DATA, {
 755                 value: attr.cacheData || false,
 756                 validator: Lang.isBoolean
 757             });
 758
 759             /**
 760              * The method to use for the data request.
 761              * @attribute loadMethod
 762              * @type String
 763              * @default "GET"
 764              */
 765             this.setAttributeConfig(LOAD_METHOD, {
 766                 value: attr.loadMethod || 'GET',
 767                 validator: Lang.isString
 768             });
 769
 770             /**
 771              * Whether or not any data has been loaded from the server.
 772              * @attribute dataLoaded
 773              * @type Boolean
 774              */
 775             this.setAttributeConfig(DATA_LOADED, {
 776                 value: false,
 777                 validator: Lang.isBoolean,
 778                 writeOnce: true
 779             });
 780
 781             /**
 782              * Number if milliseconds before aborting and calling failure handler.
 783              * @attribute dataTimeout
 784              * @type Number
 785              * @default null
 786              */
 787             this.setAttributeConfig(DATA_TIMEOUT, {
 788                 value: attr.dataTimeout || null,
 789                 validator: Lang.isNumber
 790             });
 791
 792             /**
 793              * Arguments to pass when POST method is used
 794              * @attribute postData
 795              * @default null
 796              */
 797             this.setAttributeConfig(POST_DATA, {
 798                 value: attr.postData || null
 799             });
 800
 801             /**
 802              * Whether or not the tab is currently active.
 803              * If a dataSrc is set for the tab, the content will be loaded from
 804              * the given source.
 805              * @attribute active
 806              * @type Boolean
 807              */
 808             this.setAttributeConfig('active', {
 809                 value: attr.active || this.hasClass(this.ACTIVE_CLASSNAME),
 810                 method: function(value) {
 811                     if (value === true) {
 812                         this.addClass(this.ACTIVE_CLASSNAME);
 813                         this.set('title', this.ACTIVE_TITLE);
 814                     } else {
 815                         this.removeClass(this.ACTIVE_CLASSNAME);
 816                         this.set('title', '');
 817                     }
 818                 },
 819                 validator: function(value) {
 820                     return Lang.isBoolean(value) && !this.get(DISABLED) ;
 821                 }
 822             });
 823
 824             /**
 825              * Whether or not the tab is disabled.
 826              * @attribute disabled
 827              * @type Boolean
 828              */
 829             this.setAttributeConfig(DISABLED, {
 830                 value: attr.disabled || this.hasClass(this.DISABLED_CLASSNAME),
 831                 method: function(value) {
 832                     if (value === true) {
 833                         Dom.addClass(this.get(ELEMENT), this.DISABLED_CLASSNAME);
 834                     } else {
 835                         Dom.removeClass(this.get(ELEMENT), this.DISABLED_CLASSNAME);
 836                     }
 837                 },
 838                 validator: Lang.isBoolean
 839             });
 840
 841             /**
 842              * The href of the tab's anchor element.
 843              * @attribute href
 844              * @type String
 845              * @default '#'
 846              */
 847             this.setAttributeConfig('href', {
 848                 value: attr.href ||
 849                         this.getElementsByTagName('a')[0].getAttribute('href', 2) || '#',
 850                 method: function(value) {
 851                     this.getElementsByTagName('a')[0].href = value;
 852                 },
 853                 validator: Lang.isString
 854             });
 855
 856             /**
 857              * The Whether or not the tab's content is visible.
 858              * @attribute contentVisible
 859              * @type Boolean
 860              * @default false
 861              */
 862             this.setAttributeConfig('contentVisible', {
 863                 value: attr.contentVisible,
 864                 method: function(value) {
 865                     if (value) {
 866                         Dom.removeClass(this.get(CONTENT_EL), this.HIDDEN_CLASSNAME);
 867
 868                         if ( this.get(DATA_SRC) ) {
 869                          // load dynamic content unless already loading or loaded and caching
 870                             if ( !this._loading && !(this.get(DATA_LOADED) && this.get(CACHE_DATA)) ) {
 871                                 this._dataConnect();
 872                             }
 873                         }
 874                     } else {
 875                         Dom.addClass(this.get(CONTENT_EL), this.HIDDEN_CLASSNAME);
 876                     }
 877                 },
 878                 validator: Lang.isBoolean
 879             });
 880             YAHOO.log('attributes initialized', 'info', 'Tab');
 881         },
 882
 883         _dataConnect: function() {
 884             if (!Y.Connect) {
 885                 YAHOO.log('YAHOO.util.Connect dependency not met',
 886                         'error', 'Tab');
 887                 return false;
 888             }
 889
 890             Dom.addClass(this.get(CONTENT_EL).parentNode, this.LOADING_CLASSNAME);
 891             this._loading = true;
 892             this.dataConnection = Y.Connect.asyncRequest(
 893                 this.get(LOAD_METHOD),
 894                 this.get(DATA_SRC),
 895                 {
 896                     success: function(o) {
 897                         YAHOO.log('content loaded successfully', 'info', 'Tab');
 898                         this.loadHandler.success.call(this, o);
 899                         this.set(DATA_LOADED, true);
 900                         this.dataConnection = null;
 901                         Dom.removeClass(this.get(CONTENT_EL).parentNode,
 902                                 this.LOADING_CLASSNAME);
 903                         this._loading = false;
 904                     },
 905                     failure: function(o) {
 906                         YAHOO.log('loading failed: ' + o.statusText, 'error', 'Tab');
 907                         this.loadHandler.failure.call(this, o);
 908                         this.dataConnection = null;
 909                         Dom.removeClass(this.get(CONTENT_EL).parentNode,
 910                                 this.LOADING_CLASSNAME);
 911                         this._loading = false;
 912                     },
 913                     scope: this,
 914                     timeout: this.get(DATA_TIMEOUT)
 915                 },
 916
 917                 this.get(POST_DATA)
 918             );
 919         },
 920         _createTabElement: function(attr) {
 921             var el = document.createElement('li'),
 922                 a = document.createElement('a'),
 923                 label = attr.label || null,
 924                 labelEl = attr.labelEl || null;
 925
 926             a.href = attr.href || '#'; // TODO: Use Dom.setAttribute?
 927             el.appendChild(a);
 928
 929             if (labelEl) { // user supplied labelEl
 930                 if (!label) { // user supplied label
 931                     label = this._getLabel();
 932                 }
 933             } else {
 934                 labelEl = this._createLabelEl();
 935             }
 936
 937             a.appendChild(labelEl);
 938
 939             YAHOO.log('creating Tab Dom', 'info', 'Tab');
 940             return el;
 941         },
 942
 943         _getLabelEl: function() {
 944             return this.getElementsByTagName(this.LABEL_TAGNAME)[0];
 945         },
 946
 947         _createLabelEl: function() {
 948             var el = document.createElement(this.LABEL_TAGNAME);
 949             return el;
 950         },
 951
 952
 953         _getLabel: function() {
 954             var el = this.get(LABEL_EL);
 955
 956                 if (!el) {
 957                     return undefined;
 958                 }
 959
 960             return el.innerHTML;
 961         },
 962
 963         _onActivate: function(e, tabview) {
 964             var tab = this,
 965                 silent = false;
 966
 967
 968             Y.Event.preventDefault(e);
 969             if (tab === tabview.get(ACTIVE_TAB)) {
 970                 silent = true; // dont fire activeTabChange if already active
 971             }
 972             tabview.set(ACTIVE_TAB, tab, silent);
 973         }
 974     });
 975
 976
 977     /**
 978      * Fires when a tab is removed from the tabview
 979      * @event remove
 980      * @type CustomEvent
 981      * @param {Event} An event object with fields for "type" ("remove")
 982      * and "tabview" (the tabview instance it was removed from)
 983      */
 984
 985     YAHOO.widget.Tab = Tab;
 986 })();
 987
 988 YAHOO.register("tabview", YAHOO.widget.TabView, {version: "2.7.0", build: "1799"});