4 * Copyright(c) 2006-2007, Ext JS, LLC.
6 * Originally Released Under LGPL - original licence link has changed is not relivant.
9 * <script type="text/javascript">
12 * @class Roo.panel.Tab
13 * @extends Roo.util.Observable
14 * A lightweight tab container.
18 // basic tabs 1, built from existing content
19 var tabs = new Roo.panel.Tab("tabs1");
20 tabs.addTab("script", "View Script");
21 tabs.addTab("markup", "View Markup");
22 tabs.activate("script");
24 // more advanced tabs, built from javascript
25 var jtabs = new Roo.panel.Tab("jtabs");
26 jtabs.addTab("jtabs-1", "Normal Tab", "My content was added during construction.");
28 // set up the UpdateManager
29 var tab2 = jtabs.addTab("jtabs-2", "Ajax Tab 1");
30 var updater = tab2.getUpdateManager();
31 updater.setDefaultUrl("ajax1.htm");
32 tab2.on('activate', updater.refresh, updater, true);
34 // Use setUrl for Ajax loading
35 var tab3 = jtabs.addTab("jtabs-3", "Ajax Tab 2");
36 tab3.setUrl("ajax2.htm", null, true);
39 var tab4 = jtabs.addTab("tabs1-5", "Disabled Tab", "Can't see me cause I'm disabled");
42 jtabs.activate("jtabs-1");
45 * Create a new TabPanel.
46 * @param {String/HTMLElement/Roo.Element} container The id, DOM element or Roo.Element container where this TabPanel is to be rendered.
47 * @param {Object/Boolean} config Config object to set any properties for this TabPanel, or true to render the tabs on the bottom.
49 Roo.panel.Tab = function(container, config){
51 * The container element for this TabPanel.
54 this.el = Roo.get(container, true);
56 if(typeof config == "boolean"){
57 this.tabPosition = config ? "bottom" : "top";
59 Roo.apply(this, config);
62 if(this.tabPosition == "bottom"){
63 this.bodyEl = Roo.get(this.createBody(this.el.dom));
64 this.el.addClass("x-tabs-bottom");
66 this.stripWrap = Roo.get(this.createStrip(this.el.dom), true);
67 this.stripEl = Roo.get(this.createStripList(this.stripWrap.dom), true);
68 this.stripBody = Roo.get(this.stripWrap.dom.firstChild.firstChild, true);
70 Roo.fly(this.stripWrap.dom.firstChild).setStyle("overflow-x", "hidden");
72 if(this.tabPosition != "bottom"){
73 /** The body element that contains {@link Roo.panel.TabItem} bodies. +
76 this.bodyEl = Roo.get(this.createBody(this.el.dom));
77 this.el.addClass("x-tabs-top");
81 this.bodyEl.setStyle("position", "relative");
84 this.activateDelegate = this.activate.createDelegate(this);
89 * Fires when the active tab changes
90 * @param {Roo.panel.Tab} this
91 * @param {Roo.panel.TabItem} activePanel The new active tab
95 * @event beforetabchange
96 * Fires before the active tab changes, set cancel to true on the "e" parameter to cancel the change
97 * @param {Roo.panel.Tab} this
98 * @param {Object} e Set cancel to true on this object to cancel the tab change
99 * @param {Roo.panel.TabItem} tab The tab being changed to
101 "beforetabchange" : true
104 Roo.EventManager.onWindowResize(this.onResize, this);
105 this.cpad = this.el.getPadding("lr");
106 this.hiddenCount = 0;
109 // toolbar on the tabbar support...
111 var tcfg = this.toolbar;
112 tcfg.container = this.stripEl.child('td.x-tab-strip-toolbar');
113 this.toolbar = new Roo.Toolbar(tcfg);
115 var tbl = tcfg.container.child('table', true);
116 tbl.setAttribute('width', '100%');
123 Roo.panel.Tab.superclass.constructor.call(this);
126 Roo.extend(Roo.panel.Tab, Roo.util.Observable, {
128 *@cfg {String} tabPosition "top" or "bottom" (defaults to "top")
132 *@cfg {Number} currentTabWidth The width of the current tab (defaults to 0)
136 *@cfg {Number} minTabWidth The minimum width of a tab (defaults to 40) (ignored if {@link #resizeTabs} is not true)
140 *@cfg {Number} maxTabWidth The maximum width of a tab (defaults to 250) (ignored if {@link #resizeTabs} is not true)
144 *@cfg {Number} preferredTabWidth The preferred (default) width of a tab (defaults to 175) (ignored if {@link #resizeTabs} is not true)
146 preferredTabWidth : 175,
148 *@cfg {Boolean} resizeTabs True to enable dynamic tab resizing (defaults to false)
152 *@cfg {Boolean} monitorResize Set this to true to turn on window resize monitoring (ignored if {@link #resizeTabs} is not true) (defaults to true)
154 monitorResize : true,
156 *@cfg {Object} toolbar xtype description of toolbar to show at the right of the tab bar.
161 * Creates a new {@link Roo.panel.TabItem} by looking for an existing element with the provided id -- if it's not found it creates one.
162 * @param {String} id The id of the div to use <b>or create</b>
163 * @param {String} text The text for the tab
164 * @param {String} content (optional) Content to put in the TabPanelItem body
165 * @param {Boolean} closable (optional) True to create a close icon on the tab
166 * @return {Roo.panel.TabItem} The created TabPanelItem
168 addTab : function(id, text, content, closable){
169 var item = new Roo.panel.TabItem(this, id, text, closable);
170 this.addTabItem(item);
172 item.setContent(content);
178 * Returns the {@link Roo.panel.TabItem} with the specified id/index
179 * @param {String/Number} id The id or index of the TabPanelItem to fetch.
180 * @return {Roo.panel.TabItem}
182 getTab : function(id){
183 return this.items[id];
187 * Hides the {@link Roo.panel.TabItem} with the specified id/index
188 * @param {String/Number} id The id or index of the TabPanelItem to hide.
190 hideTab : function(id){
191 var t = this.items[id];
200 * "Unhides" the {@link Roo.panel.TabItem} with the specified id/index.
201 * @param {String/Number} id The id or index of the TabPanelItem to unhide.
203 unhideTab : function(id){
204 var t = this.items[id];
213 * Adds an existing {@link Roo.panel.TabItem}.
214 * @param {Roo.panel.TabItem} item The TabPanelItem to add
216 addTabItem : function(item){
217 this.items[item.id] = item;
218 this.items.push(item);
220 item.setWidth(this.currentTabWidth || this.preferredTabWidth);
228 * Removes a {@link Roo.panel.TabItem}.
229 * @param {String/Number} id The id or index of the TabPanelItem to remove.
231 removeTab : function(id){
232 var items = this.items;
235 var index = items.indexOf(tab);
236 if(this.active == tab && items.length > 1){
237 var newTab = this.getNextAvailable(index);
242 this.stripEl.dom.removeChild(tab.pnode.dom);
243 if(tab.bodyEl.dom.parentNode == this.bodyEl.dom){ // if it was moved already prevent error
244 this.bodyEl.dom.removeChild(tab.bodyEl.dom);
246 items.splice(index, 1);
247 delete this.items[tab.id];
248 tab.fireEvent("close", tab);
249 tab.purgeListeners();
253 getNextAvailable : function(start){
254 var items = this.items;
256 // look for a next tab that will slide over to
257 // replace the one being removed
258 while(index < items.length){
259 var item = items[++index];
260 if(item && !item.isHidden()){
264 // if one isn't found select the previous tab (on the left)
267 var item = items[--index];
268 if(item && !item.isHidden()){
276 * Disables a {@link Roo.panel.TabItem}. It cannot be the active tab, if it is this call is ignored.
277 * @param {String/Number} id The id or index of the TabPanelItem to disable.
279 disableTab : function(id){
280 var tab = this.items[id];
281 if(tab && this.active != tab){
287 * Enables a {@link Roo.panel.TabItem} that is disabled.
288 * @param {String/Number} id The id or index of the TabPanelItem to enable.
290 enableTab : function(id){
291 var tab = this.items[id];
296 * Activates a {@link Roo.panel.TabItem}. The currently active one will be deactivated.
297 * @param {String/Number} id The id or index of the TabPanelItem to activate.
298 * @return {Roo.panel.TabItem} The TabPanelItem.
300 activate : function(id){
301 var tab = this.items[id];
305 if(tab == this.active || tab.disabled){
309 this.fireEvent("beforetabchange", this, e, tab);
310 if(e.cancel !== true && !tab.disabled){
314 this.active = this.items[id];
316 this.fireEvent("tabchange", this, this.active);
322 * Gets the active {@link Roo.panel.TabItem}.
323 * @return {Roo.panel.TabItem} The active TabPanelItem or null if none are active.
325 getActiveTab : function(){
330 * Updates the tab body element to fit the height of the container element
331 * for overflow scrolling
332 * @param {Number} targetHeight (optional) Override the starting height from the elements height
334 syncHeight : function(targetHeight){
335 var height = (targetHeight || this.el.getHeight())-this.el.getBorderWidth("tb")-this.el.getPadding("tb");
336 var bm = this.bodyEl.getMargins();
337 var newHeight = height-(this.stripWrap.getHeight()||0)-(bm.top+bm.bottom);
338 this.bodyEl.setHeight(newHeight);
342 onResize : function(){
343 if(this.monitorResize){
349 * Disables tab resizing while tabs are being added (if {@link #resizeTabs} is false this does nothing)
351 beginUpdate : function(){
352 this.updating = true;
356 * Stops an update and resizes the tabs (if {@link #resizeTabs} is false this does nothing)
358 endUpdate : function(){
359 this.updating = false;
364 * Manual call to resize the tabs (if {@link #resizeTabs} is false this does nothing)
366 autoSizeTabs : function(){
367 var count = this.items.length;
368 var vcount = count - this.hiddenCount;
369 if(!this.resizeTabs || count < 1 || vcount < 1 || this.updating) {
372 var w = Math.max(this.el.getWidth() - this.cpad, 10);
373 var availWidth = Math.floor(w / vcount);
374 var b = this.stripBody;
375 if(b.getWidth() > w){
376 var tabs = this.items;
377 this.setTabWidth(Math.max(availWidth, this.minTabWidth)-2);
378 if(availWidth < this.minTabWidth){
379 /*if(!this.sleft){ // incomplete scrolling code
380 this.createScrollButtons();
383 this.stripClip.setWidth(w - (this.sleft.getWidth()+this.sright.getWidth()));*/
386 if(this.currentTabWidth < this.preferredTabWidth){
387 this.setTabWidth(Math.min(availWidth, this.preferredTabWidth)-2);
393 * Returns the number of tabs in this TabPanel.
396 getCount : function(){
397 return this.items.length;
401 * Resizes all the tabs to the passed width
402 * @param {Number} The new width
404 setTabWidth : function(width){
405 this.currentTabWidth = width;
406 for(var i = 0, len = this.items.length; i < len; i++) {
407 if(!this.items[i].isHidden()) {
408 this.items[i].setWidth(width);
414 * Destroys this TabPanel
415 * @param {Boolean} removeEl (optional) True to remove the element from the DOM as well (defaults to undefined)
417 destroy : function(removeEl){
418 Roo.EventManager.removeResizeListener(this.onResize, this);
419 for(var i = 0, len = this.items.length; i < len; i++){
420 this.items[i].purgeListeners();
422 if(removeEl === true){
431 Roo.panel.Tab.prototype.createStripList = function(strip){
432 // div wrapper for retard IE
433 // returns the "tr" element.
434 strip.innerHTML = '<div class="x-tabs-strip-wrap">'+
435 '<table class="x-tabs-strip" cellspacing="0" cellpadding="0" border="0"><tbody><tr>'+
436 '<td class="x-tab-strip-toolbar"></td></tr></tbody></table></div>';
437 return strip.firstChild.firstChild.firstChild.firstChild;
440 Roo.panel.Tab.prototype.createBody = function(container){
441 var body = document.createElement("div");
442 Roo.id(body, "tab-body");
443 Roo.fly(body).addClass("x-tabs-body");
444 container.appendChild(body);
448 Roo.panel.Tab.prototype.createItemBody = function(bodyEl, id){
449 var body = Roo.getDom(id);
451 body = document.createElement("div");
454 Roo.fly(body).addClass("x-tabs-item-body");
455 bodyEl.insertBefore(body, bodyEl.firstChild);
459 Roo.panel.Tab.prototype.createStripElements = function(stripEl, text, closable){
460 var td = document.createElement("td");
461 stripEl.insertBefore(td, stripEl.childNodes[stripEl.childNodes.length-1]);
462 //stripEl.appendChild(td);
464 td.className = "x-tabs-closable";
466 this.closeTpl = new Roo.Template(
467 '<a href="#" class="x-tabs-right"><span class="x-tabs-left"><em class="x-tabs-inner">' +
468 '<span unselectable="on"' + (this.disableTooltips ? '' : ' title="{text}"') +' class="x-tabs-text">{text}</span>' +
469 '<div unselectable="on" class="close-icon"> </div></em></span></a>'
472 var el = this.closeTpl.overwrite(td, {"text": text});
473 var close = el.getElementsByTagName("div")[0];
474 var inner = el.getElementsByTagName("em")[0];
475 return {"el": el, "close": close, "inner": inner};
478 this.tabTpl = new Roo.Template(
479 '<a href="#" class="x-tabs-right"><span class="x-tabs-left"><em class="x-tabs-inner">' +
480 '<span unselectable="on"' + (this.disableTooltips ? '' : ' title="{text}"') +' class="x-tabs-text">{text}</span></em></span></a>'
483 var el = this.tabTpl.overwrite(td, {"text": text});
484 var inner = el.getElementsByTagName("em")[0];
485 return {"el": el, "inner": inner};