TabPanel.js
/**
* @class Ext.TabPanel
* <p>A basic tab container. TabPanels can be used exactly like a standard {@link Ext.Panel} for layout
* purposes, but also have special support for containing child Components that are managed using a CardLayout
* layout manager, and displayed as seperate tabs.
* </p>
* <p><b>Note:</b> TabPanels use their {@link Ext.Panel#header header} or {@link Ext.Panel#footer footer} element
* (depending on the {@link #tabPosition} configuration) to accommodate the tab selector buttons. This means that a TabPanel
* will not display any configured title, and will not display any configured header {@link Ext.Panel#tools tools}.
* To display a header, embed the TabPanel in a {@link Ext.Panel Panel} which uses
* <b><tt>{@link Ext.Container#layout layout: 'fit'}</tt></b>.
* </p>
* <p><b>Note:</b> It is advisable to configure all child items of a TabPanel (and any Container which uses a CardLayout) with
* <b><tt>{@link Ext.Component#hideMode hideMode: 'offsets'}</tt></b> to avoid rendering errors in child components hidden
* using the CSS <tt>display</tt> style.
* </p>
* <p>There is no actual tab class — each tab is simply a {@link Ext.BoxComponent Component} such
* as a {@link Ext.Panel Panel}. However, when rendered in a TabPanel, each child Component can fire
* additional events that only exist for tabs and are not available from other Component. These are:
* </p>
* <ul>
* <li><b>activate</b>: Fires when this Component becomes the active tab.
* <div class="mdetail-params">
* <strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong>
* <ul><li><code>tab</code> : Panel<div class="sub-desc">The tab that was activated</div></li></ul>
* </div></li>
* <li><b>deactivate</b>: Fires when the Component that was the active tab becomes deactivated.
* <div class="mdetail-params">
* <strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong>
* <ul><li><code>tab</code> : Panel<div class="sub-desc">The tab that was deactivated</div></li></ul>
* </div></li>
* </ul>
* <p>To add Components to a TabPanel which are generated dynamically on the server, it is necessary to
* create a server script to generate the Javascript to create the Component required.</p>
* For example, to add a GridPanel to a TabPanel where the GridPanel is generated by the server
* based on certain parameters, you would need to execute an Ajax request to invoke your the script,
* and process the response object to add it to the TabPanel:</p><pre><code>
Ext.Ajax.request({
url: 'gen-invoice-grid.php',
params: {
startDate : Ext.getCmp('start-date').getValue(),
endDate : Ext.getCmp('end-date').getValue()
},
success: function(xhr) {
var newComponent = eval(xhr.responseText);
myTabPanel.add(newComponent);
myTabPanel.setActiveTab(newComponent);
},
failure: function() {
Ext.Msg.alert("Grid create failed", "Server communication failure");
}
});
</code></pre>
* <p>The server script would need to return an executable Javascript statement which, when processed
* using <tt>eval()</tt> will return either a config object with an {@link Ext.Component#xtype xtype},
* or an instantiated Component. For example:</p><pre><code>
(function() {
function formatDate(value){
return value ? value.dateFormat('M d, Y') : '';
};
var store = new Ext.data.Store({
url: 'get-invoice-data.php',
baseParams: {
startDate: '01/01/2008',
endDate: '01/31/2008'
},
reader: new Ext.data.JsonReader({
record: 'transaction',
id: 'id',
totalRecords: 'total'
}, [
'customer',
'invNo',
{name: 'date', type: 'date', dateFormat: 'm/d/Y'},
{name: 'value', type: 'float'}
])
});
var grid = new Ext.grid.GridPanel({
title: 'Invoice Report',
bbar: new Ext.PagingToolbar(store),
store: store,
columns: [
{header: "Customer", width: 250, dataIndex: 'customer', sortable: true},
{header: "Invoice Number", width: 120, dataIndex: 'invNo', sortable: true},
{header: "Invoice Date", width: 100, dataIndex: 'date', renderer: formatDate, sortable: true},
{header: "Value", width: 120, dataIndex: 'value', renderer: 'usMoney', sortable: true}
],
});
store.load();
return grid;
})();
</code></pre>
* <p>Since that code is <i>generated</i> by a server script, the <tt>baseParams</tt> for the Store
* can be configured into the Store. The metadata to allow generation of the Record layout, and the
* ColumnModel is also known on the server, so these can be generated into the code.</p>
* <p>When that code fragment is passed through the <tt>eval</tt> function in the success handler
* of the Ajax request, the code is executed by the Javascript processor, and the anonymous function
* runs, and returns the grid.</p>
* <p>There are several other methods available for creating TabPanels. The output of the following
* examples should produce exactly the same appearance. The tabs can be created and rendered completely
* in code, as in this example:</p>
* <pre><code>
var tabs = new Ext.TabPanel({
renderTo: Ext.getBody(),
activeTab: 0,
items: [{
title: 'Tab 1',
html: 'A simple tab'
},{
title: 'Tab 2',
html: 'Another one'
}]
});
</code></pre>
* <p>TabPanels can also be rendered from pre-existing markup in a couple of ways. See the {@link #autoTabs} example for
* rendering entirely from markup that is already structured correctly as a TabPanel (a container div with
* one or more nested tab divs with class 'x-tab'). You can also render from markup that is not strictly
* structured by simply specifying by id which elements should be the container and the tabs. Using this method,
* tab content can be pulled from different elements within the page by id regardless of page structure. Note
* that the tab divs in this example contain the class 'x-hide-display' so that they can be rendered deferred
* without displaying outside the tabs. You could alternately set {@link #deferredRender} to false to render all
* content tabs on page load. For example:
* <pre><code>
var tabs = new Ext.TabPanel({
renderTo: 'my-tabs',
activeTab: 0,
items:[
{contentEl:'tab1', title:'Tab 1'},
{contentEl:'tab2', title:'Tab 2'}
]
});
// Note that the tabs do not have to be nested within the container (although they can be)
<div id="my-tabs"></div>
<div id="tab1" class="x-hide-display">A simple tab</div>
<div id="tab2" class="x-hide-display">Another one</div>
</code></pre>
* @extends Ext.Panel
* @constructor
* @param {Object} config The configuration options
*/
Ext.TabPanel = Ext.extend(Ext.Panel, {
/**
* @cfg {Boolean} layoutOnTabChange Set to true to do a layout of tab items as tabs are changed.
*/
// holder
/***
* @cfg {String} tabCls <b>This config option is used on <u>child Components</u> of ths TabPanel.</b> A CSS
* class name applied to the tab strip item representing the child Component, allowing special
* styling to be applied.
*/
// holder
/***
* @cfg {Boolean} monitorResize True to automatically monitor window resize events and rerender the layout on
* browser resize (defaults to true).
*/
monitorResize : true,
/**
* @cfg {Boolean} deferredRender Internally, the TabPanel uses a {@link Ext.layout.CardLayout} to manage its tabs.
* This property will be passed on to the layout as its {@link Ext.layout.CardLayout#deferredRender} config value,
* determining whether or not each tab is rendered only when first accessed (defaults to true).
* <p>Be aware that leaving deferredRender as <b><tt>true</tt></b> means that, if the TabPanel is within
* a {@link Ext.form.FormPanel form}, then until a tab is activated, any Fields within that tab will not
* be rendered, and will therefore not be submitted and will not be available to either
* {@link Ext.form.BasicForm#getValues getValues} or {@link Ext.form.BasicForm#setValues setValues}.</p>
*/
deferredRender : true,
/**
* @cfg {Number} tabWidth The initial width in pixels of each new tab (defaults to 120).
*/
tabWidth: 120,
/**
* @cfg {Number} minTabWidth The minimum width in pixels for each tab when {@link #resizeTabs} = true (defaults to 30).
*/
minTabWidth: 30,
/**
* @cfg {Boolean} resizeTabs True to automatically resize each tab so that the tabs will completely fill the
* tab strip (defaults to false). Setting this to true may cause specific widths that might be set per tab to
* be overridden in order to fit them all into view (although {@link #minTabWidth} will always be honored).
*/
resizeTabs:false,
/**
* @cfg {Boolean} enableTabScroll True to enable scrolling to tabs that may be invisible due to overflowing the
* overall TabPanel width. Only available with tabPosition:'top' (defaults to false).
*/
enableTabScroll: false,
/**
* @cfg {Number} scrollIncrement The number of pixels to scroll each time a tab scroll button is pressed (defaults
* to 100, or if {@link #resizeTabs} = true, the calculated tab width). Only applies when {@link #enableTabScroll} = true.
*/
scrollIncrement : 0,
/**
* @cfg {Number} scrollRepeatInterval Number of milliseconds between each scroll while a tab scroll button is
* continuously pressed (defaults to 400).
*/
scrollRepeatInterval : 400,
/**
* @cfg {Float} scrollDuration The number of milliseconds that each scroll animation should last (defaults to .35).
* Only applies when {@link #animScroll} = true.
*/
scrollDuration : .35,
/**
* @cfg {Boolean} animScroll True to animate tab scrolling so that hidden tabs slide smoothly into view (defaults
* to true). Only applies when {@link #enableTabScroll} = true.
*/
animScroll : true,
/**
* @cfg {String} tabPosition The position where the tab strip should be rendered (defaults to 'top'). The only
* other supported value is 'bottom'. Note that tab scrolling is only supported for position 'top'.
*/
tabPosition: 'top',
/**
* @cfg {String} baseCls The base CSS class applied to the panel (defaults to 'x-tab-panel').
*/
baseCls: 'x-tab-panel',
/**
* @cfg {Boolean} autoTabs
* <p>True to query the DOM for any divs with a class of 'x-tab' to be automatically converted
* to tabs and added to this panel (defaults to false). Note that the query will be executed within the scope of
* the container element only (so that multiple tab panels from markup can be supported via this method).</p>
* <p>This method is only possible when the markup is structured correctly as a container with nested
* divs containing the class 'x-tab'. To create TabPanels without these limitations, or to pull tab content from
* other elements on the page, see the example at the top of the class for generating tabs from markup.</p>
* <p>There are a couple of things to note when using this method:<ul>
* <li>When using the autoTabs config (as opposed to passing individual tab configs in the TabPanel's
* {@link #items} collection), you must use {@link #applyTo} to correctly use the specified id as the tab container.
* The autoTabs method <em>replaces</em> existing content with the TabPanel components.</li>
* <li>Make sure that you set {@link #deferredRender} to false so that the content elements for each tab will be
* rendered into the TabPanel immediately upon page load, otherwise they will not be transformed until each tab
* is activated and will be visible outside the TabPanel.</li>
* </ul>Example usage:</p>
* <pre><code>
var tabs = new Ext.TabPanel({
applyTo: 'my-tabs',
activeTab: 0,
deferredRender: false,
autoTabs: true
});
// This markup will be converted to a TabPanel from the code above
<div id="my-tabs">
<div class="x-tab" title="Tab 1">A simple tab</div>
<div class="x-tab" title="Tab 2">Another one</div>
</div>
</code></pre>
*/
autoTabs : false,
/**
* @cfg {String} autoTabSelector The CSS selector used to search for tabs in existing markup when {@link #autoTabs}
* = true (defaults to 'div.x-tab'). This can be any valid selector supported by {@link Ext.DomQuery#select}.
* Note that the query will be executed within the scope of this tab panel only (so that multiple tab panels from
* markup can be supported on a page).
*/
autoTabSelector:'div.x-tab',
/**
* @cfg {String/Number} activeTab A string id or the numeric index of the tab that should be initially
* activated on render (defaults to none).
*/
activeTab : null,
/**
* @cfg {Number} tabMargin The number of pixels of space to calculate into the sizing and scrolling of tabs. If you
* change the margin in CSS, you will need to update this value so calculations are correct with either resizeTabs
* or scrolling tabs. (defaults to 2)
*/
tabMargin : 2,
/**
* @cfg {Boolean} plain True to render the tab strip without a background container image (defaults to false).
*/
plain: false,
/**
* @cfg {Number} wheelIncrement For scrolling tabs, the number of pixels to increment on mouse wheel scrolling (defaults to 20).
*/
wheelIncrement : 20,
/*
* This is a protected property used when concatenating tab ids to the TabPanel id for internal uniqueness.
* It does not generally need to be changed, but can be if external code also uses an id scheme that can
* potentially clash with this one.
*/
idDelimiter : '__',
// private
itemCls : 'x-tab-item',
// private config overrides
elements: 'body',
headerAsText: false,
frame: false,
hideBorders:true,
// private
initComponent : function(){
this.frame = false;
Ext.TabPanel.superclass.initComponent.call(this);
this.addEvents(
/**
* @event beforetabchange
* Fires before the active tab changes. Handlers can return false to cancel the tab change.
* @param {TabPanel} this
* @param {Panel} newTab The tab being activated
* @param {Panel} currentTab The current active tab
*/
'beforetabchange',
/**
* @event tabchange
* Fires after the active tab has changed.
* @param {TabPanel} this
* @param {Panel} tab The new active tab
*/
'tabchange',
/**
* @event contextmenu
* Relays the contextmenu event from a tab selector element in the tab strip.
* @param {TabPanel} this
* @param {Panel} tab The target tab
* @param {EventObject} e
*/
'contextmenu'
);
this.setLayout(new Ext.layout.CardLayout({
deferredRender: this.deferredRender
}));
if(this.tabPosition == 'top'){
this.elements += ',header';
this.stripTarget = 'header';
}else {
this.elements += ',footer';
this.stripTarget = 'footer';
}
if(!this.stack){
this.stack = Ext.TabPanel.AccessStack();
}
this.initItems();
},
// private
render : function(){
Ext.TabPanel.superclass.render.apply(this, arguments);
if(this.activeTab !== undefined){
var item = this.activeTab;
delete this.activeTab;
this.setActiveTab(item);
}
},
// private
onRender : function(ct, position){
Ext.TabPanel.superclass.onRender.call(this, ct, position);
if(this.plain){
var pos = this.tabPosition == 'top' ? 'header' : 'footer';
this[pos].addClass('x-tab-panel-'+pos+'-plain');
}
var st = this[this.stripTarget];
this.stripWrap = st.createChild({cls:'x-tab-strip-wrap', cn:{
tag:'ul', cls:'x-tab-strip x-tab-strip-'+this.tabPosition}});
var beforeEl = (this.tabPosition=='bottom' ? this.stripWrap : null);
this.stripSpacer = st.createChild({cls:'x-tab-strip-spacer'}, beforeEl);
this.strip = new Ext.Element(this.stripWrap.dom.firstChild);
this.edge = this.strip.createChild({tag:'li', cls:'x-tab-edge'});
this.strip.createChild({cls:'x-clear'});
this.body.addClass('x-tab-panel-body-'+this.tabPosition);
if(!this.itemTpl){
var tt = new Ext.Template(
'<li class="{cls}" id="{id}"><a class="x-tab-strip-close" onclick="return false;"></a>',
'<a class="x-tab-right" href="#" onclick="return false;"><em class="x-tab-left">',
'<span class="x-tab-strip-inner"><span class="x-tab-strip-text {iconCls}">{text}</span></span>',
'</em></a></li>'
);
tt.disableFormats = true;
tt.compile();
Ext.TabPanel.prototype.itemTpl = tt;
}
this.items.each(this.initTab, this);
},
// private
afterRender : function(){
Ext.TabPanel.superclass.afterRender.call(this);
if(this.autoTabs){
this.readTabs(false);
}
},
// private
initEvents : function(){
Ext.TabPanel.superclass.initEvents.call(this);
this.on('add', this.onAdd, this);
this.on('remove', this.onRemove, this);
this.strip.on('mousedown', this.onStripMouseDown, this);
this.strip.on('contextmenu', this.onStripContextMenu, this);
if(this.enableTabScroll){
this.strip.on('mousewheel', this.onWheel, this);
}
},
// private
findTargets : function(e){
var item = null;
var itemEl = e.getTarget('li', this.strip);
if(itemEl){
item = this.getComponent(itemEl.id.split(this.idDelimiter)[1]);
if(item.disabled){
return {
close : null,
item : null,
el : null
};
}
}
return {
close : e.getTarget('.x-tab-strip-close', this.strip),
item : item,
el : itemEl
};
},
// private
onStripMouseDown : function(e){
if(e.button != 0){
return;
}
e.preventDefault();
var t = this.findTargets(e);
if(t.close){
this.remove(t.item);
return;
}
if(t.item && t.item != this.activeTab){
this.setActiveTab(t.item);
}
},
// private
onStripContextMenu : function(e){
e.preventDefault();
var t = this.findTargets(e);
if(t.item){
this.fireEvent('contextmenu', this, t.item, e);
}
},
/**
* True to scan the markup in this tab panel for autoTabs using the autoTabSelector
* @param {Boolean} removeExisting True to remove existing tabs
*/
readTabs : function(removeExisting){
if(removeExisting === true){
this.items.each(function(item){
this.remove(item);
}, this);
}
var tabs = this.el.query(this.autoTabSelector);
for(var i = 0, len = tabs.length; i < len; i++){
var tab = tabs[i];
var title = tab.getAttribute('title');
tab.removeAttribute('title');
this.add({
title: title,
contentEl: tab
});
}
},
// private
initTab : function(item, index){
var before = this.strip.dom.childNodes[index];
var cls = item.closable ? 'x-tab-strip-closable' : '';
if(item.disabled){
cls += ' x-item-disabled';
}
if(item.iconCls){
cls += ' x-tab-with-icon';
}
if(item.tabCls){
cls += ' ' + item.tabCls;
}
var p = {
id: this.id + this.idDelimiter + item.getItemId(),
text: item.title,
cls: cls,
iconCls: item.iconCls || ''
};
var el = before ?
this.itemTpl.insertBefore(before, p) :
this.itemTpl.append(this.strip, p);
Ext.fly(el).addClassOnOver('x-tab-strip-over');
if(item.tabTip){
Ext.fly(el).child('span.x-tab-strip-text', true).qtip = item.tabTip;
}
item.tabEl = el;
item.on('disable', this.onItemDisabled, this);
item.on('enable', this.onItemEnabled, this);
item.on('titlechange', this.onItemTitleChanged, this);
item.on('iconchange', this.onItemIconChanged, this);
item.on('beforeshow', this.onBeforeShowItem, this);
},
// private
onAdd : function(tp, item, index){
this.initTab(item, index);
if(this.items.getCount() == 1){
this.syncSize();
}
this.delegateUpdates();
},
// private
onBeforeAdd : function(item){
var existing = item.events ? (this.items.containsKey(item.getItemId()) ? item : null) : this.items.get(item);
if(existing){
this.setActiveTab(item);
return false;
}
Ext.TabPanel.superclass.onBeforeAdd.apply(this, arguments);
var es = item.elements;
item.elements = es ? es.replace(',header', '') : es;
item.border = (item.border === true);
},
// private
onRemove : function(tp, item){
Ext.destroy(Ext.get(this.getTabEl(item)));
this.stack.remove(item);
item.un('disable', this.onItemDisabled, this);
item.un('enable', this.onItemEnabled, this);
item.un('titlechange', this.onItemTitleChanged, this);
item.un('iconchange', this.onItemIconChanged, this);
item.un('beforeshow', this.onBeforeShowItem, this);
if(item == this.activeTab){
var next = this.stack.next();
if(next){
this.setActiveTab(next);
}else if(this.items.getCount() > 0){
this.setActiveTab(0);
}else{
this.activeTab = null;
}
}
this.delegateUpdates();
},
// private
onBeforeShowItem : function(item){
if(item != this.activeTab){
this.setActiveTab(item);
return false;
}
},
// private
onItemDisabled : function(item){
var el = this.getTabEl(item);
if(el){
Ext.fly(el).addClass('x-item-disabled');
}
this.stack.remove(item);
},
// private
onItemEnabled : function(item){
var el = this.getTabEl(item);
if(el){
Ext.fly(el).removeClass('x-item-disabled');
}
},
// private
onItemTitleChanged : function(item){
var el = this.getTabEl(item);
if(el){
Ext.fly(el).child('span.x-tab-strip-text', true).innerHTML = item.title;
}
},
//private
onItemIconChanged: function(item, iconCls, oldCls){
var el = this.getTabEl(item);
if(el){
Ext.fly(el).child('span.x-tab-strip-text').replaceClass(oldCls, iconCls);
}
},
/**
* Gets the DOM element for tab strip item which activates the
* child panel with the specified ID. Access this to change the visual treatment of the
* item, for example by changing the CSS class name.
* @param {Panel/Number} tab The tab component, or the tab's index
* @return {HTMLElement} The DOM node
*/
getTabEl : function(item){
var itemId = (typeof item === 'number')?this.items.items[item].getItemId() : item.getItemId();
return document.getElementById(this.id+this.idDelimiter+itemId);
},
// private
onResize : function(){
Ext.TabPanel.superclass.onResize.apply(this, arguments);
this.delegateUpdates();
},
/**
* Suspends any internal calculations or scrolling while doing a bulk operation. See {@link #endUpdate}
*/
beginUpdate : function(){
this.suspendUpdates = true;
},
/**
* Resumes calculations and scrolling at the end of a bulk operation. See {@link #beginUpdate}
*/
endUpdate : function(){
this.suspendUpdates = false;
this.delegateUpdates();
},
/**
* Hides the tab strip item for the passed tab
* @param {Number/String/Panel} item The tab index, id or item
*/
hideTabStripItem : function(item){
item = this.getComponent(item);
var el = this.getTabEl(item);
if(el){
el.style.display = 'none';
this.delegateUpdates();
}
this.stack.remove(item);
},
/**
* Unhides the tab strip item for the passed tab
* @param {Number/String/Panel} item The tab index, id or item
*/
unhideTabStripItem : function(item){
item = this.getComponent(item);
var el = this.getTabEl(item);
if(el){
el.style.display = '';
this.delegateUpdates();
}
},
// private
delegateUpdates : function(){
if(this.suspendUpdates){
return;
}
if(this.resizeTabs && this.rendered){
this.autoSizeTabs();
}
if(this.enableTabScroll && this.rendered){
this.autoScrollTabs();
}
},
// private
autoSizeTabs : function(){
var count = this.items.length;
var ce = this.tabPosition != 'bottom' ? 'header' : 'footer';
var ow = this[ce].dom.offsetWidth;
var aw = this[ce].dom.clientWidth;
if(!this.resizeTabs || count < 1 || !aw){ // !aw for display:none
return;
}
var each = Math.max(Math.min(Math.floor((aw-4) / count) - this.tabMargin, this.tabWidth), this.minTabWidth); // -4 for float errors in IE
this.lastTabWidth = each;
var lis = this.stripWrap.dom.getElementsByTagName('li');
for(var i = 0, len = lis.length-1; i < len; i++) { // -1 for the "edge" li
var li = lis[i];
var inner = li.childNodes[1].firstChild.firstChild;
var tw = li.offsetWidth;
var iw = inner.offsetWidth;
inner.style.width = (each - (tw-iw)) + 'px';
}
},
// private
adjustBodyWidth : function(w){
if(this.header){
this.header.setWidth(w);
}
if(this.footer){
this.footer.setWidth(w);
}
return w;
},
/**
* Sets the specified tab as the active tab. This method fires the {@link #beforetabchange} event which
* can return false to cancel the tab change.
* @param {String/Panel} tab The id or tab Panel to activate
*/
setActiveTab : function(item){
item = this.getComponent(item);
if(!item || this.fireEvent('beforetabchange', this, item, this.activeTab) === false){
return;
}
if(!this.rendered){
this.activeTab = item;
return;
}
if(this.activeTab != item){
if(this.activeTab){
var oldEl = this.getTabEl(this.activeTab);
if(oldEl){
Ext.fly(oldEl).removeClass('x-tab-strip-active');
}
this.activeTab.fireEvent('deactivate', this.activeTab);
}
var el = this.getTabEl(item);
Ext.fly(el).addClass('x-tab-strip-active');
this.activeTab = item;
this.stack.add(item);
this.layout.setActiveItem(item);
if(this.layoutOnTabChange && item.doLayout){
item.doLayout();
}
if(this.scrolling){
this.scrollToTab(item, this.animScroll);
}
item.fireEvent('activate', item);
this.fireEvent('tabchange', this, item);
}
},
/**
* Gets the currently active tab.
* @return {Panel} The active tab
*/
getActiveTab : function(){
return this.activeTab || null;
},
/**
* Gets the specified tab by id.
* @param {String} id The tab id
* @return {Panel} The tab
*/
getItem : function(item){
return this.getComponent(item);
},
// private
autoScrollTabs : function(){
this.pos = this.tabPosition=='bottom' ? this.footer : this.header;
var count = this.items.length;
var ow = this.pos.dom.offsetWidth;
var tw = this.pos.dom.clientWidth;
var wrap = this.stripWrap;
var wd = wrap.dom;
var cw = wd.offsetWidth;
var pos = this.getScrollPos();
var l = this.edge.getOffsetsTo(this.stripWrap)[0] + pos;
if(!this.enableTabScroll || count < 1 || cw < 20){ // 20 to prevent display:none issues
return;
}
if(l <= tw){
wd.scrollLeft = 0;
wrap.setWidth(tw);
if(this.scrolling){
this.scrolling = false;
this.pos.removeClass('x-tab-scrolling');
this.scrollLeft.hide();
this.scrollRight.hide();
// See here: http://extjs.com/forum/showthread.php?t=49308&highlight=isSafari
if(Ext.isAir || Ext.isWebKit){
wd.style.marginLeft = '';
wd.style.marginRight = '';
}
}
}else{
if(!this.scrolling){
this.pos.addClass('x-tab-scrolling');
// See here: http://extjs.com/forum/showthread.php?t=49308&highlight=isSafari
if(Ext.isAir || Ext.isWebKit){
wd.style.marginLeft = '18px';
wd.style.marginRight = '18px';
}
}
tw -= wrap.getMargins('lr');
wrap.setWidth(tw > 20 ? tw : 20);
if(!this.scrolling){
if(!this.scrollLeft){
this.createScrollers();
}else{
this.scrollLeft.show();
this.scrollRight.show();
}
}
this.scrolling = true;
if(pos > (l-tw)){ // ensure it stays within bounds
wd.scrollLeft = l-tw;
}else{ // otherwise, make sure the active tab is still visible
this.scrollToTab(this.activeTab, false);
}
this.updateScrollButtons();
}
},
// private
createScrollers : function(){
this.pos.addClass('x-tab-scrolling-' + this.tabPosition);
var h = this.stripWrap.dom.offsetHeight;
// left
var sl = this.pos.insertFirst({
cls:'x-tab-scroller-left'
});
sl.setHeight(h);
sl.addClassOnOver('x-tab-scroller-left-over');
this.leftRepeater = new Ext.util.ClickRepeater(sl, {
interval : this.scrollRepeatInterval,
handler: this.onScrollLeft,
scope: this
});
this.scrollLeft = sl;
// right
var sr = this.pos.insertFirst({
cls:'x-tab-scroller-right'
});
sr.setHeight(h);
sr.addClassOnOver('x-tab-scroller-right-over');
this.rightRepeater = new Ext.util.ClickRepeater(sr, {
interval : this.scrollRepeatInterval,
handler: this.onScrollRight,
scope: this
});
this.scrollRight = sr;
},
// private
getScrollWidth : function(){
return this.edge.getOffsetsTo(this.stripWrap)[0] + this.getScrollPos();
},
// private
getScrollPos : function(){
return parseInt(this.stripWrap.dom.scrollLeft, 10) || 0;
},
// private
getScrollArea : function(){
return parseInt(this.stripWrap.dom.clientWidth, 10) || 0;
},
// private
getScrollAnim : function(){
return {duration:this.scrollDuration, callback: this.updateScrollButtons, scope: this};
},
// private
getScrollIncrement : function(){
return this.scrollIncrement || (this.resizeTabs ? this.lastTabWidth+2 : 100);
},
/**
* Scrolls to a particular tab if tab scrolling is enabled
* @param {Panel} item The item to scroll to
* @param {Boolean} animate True to enable animations
*/
scrollToTab : function(item, animate){
if(!item){ return; }
var el = this.getTabEl(item);
var pos = this.getScrollPos(), area = this.getScrollArea();
var left = Ext.fly(el).getOffsetsTo(this.stripWrap)[0] + pos;
var right = left + el.offsetWidth;
if(left < pos){
this.scrollTo(left, animate);
}else if(right > (pos + area)){
this.scrollTo(right - area, animate);
}
},
// private
scrollTo : function(pos, animate){
this.stripWrap.scrollTo('left', pos, animate ? this.getScrollAnim() : false);
if(!animate){
this.updateScrollButtons();
}
},
onWheel : function(e){
var d = e.getWheelDelta()*this.wheelIncrement*-1;
e.stopEvent();
var pos = this.getScrollPos();
var newpos = pos + d;
var sw = this.getScrollWidth()-this.getScrollArea();
var s = Math.max(0, Math.min(sw, newpos));
if(s != pos){
this.scrollTo(s, false);
}
},
// private
onScrollRight : function(){
var sw = this.getScrollWidth()-this.getScrollArea();
var pos = this.getScrollPos();
var s = Math.min(sw, pos + this.getScrollIncrement());
if(s != pos){
this.scrollTo(s, this.animScroll);
}
},
// private
onScrollLeft : function(){
var pos = this.getScrollPos();
var s = Math.max(0, pos - this.getScrollIncrement());
if(s != pos){
this.scrollTo(s, this.animScroll);
}
},
// private
updateScrollButtons : function(){
var pos = this.getScrollPos();
this.scrollLeft[pos == 0 ? 'addClass' : 'removeClass']('x-tab-scroller-left-disabled');
this.scrollRight[pos >= (this.getScrollWidth()-this.getScrollArea()) ? 'addClass' : 'removeClass']('x-tab-scroller-right-disabled');
},
// private
beforeDestroy : function() {
if(this.items){
this.items.each(function(item){
if(item && item.tabEl){
Ext.get(item.tabEl).removeAllListeners();
item.tabEl = null;
}
}, this);
}
if(this.strip){
this.strip.removeAllListeners();
}
Ext.TabPanel.superclass.beforeDestroy.apply(this);
}
/**
* @cfg {Boolean} collapsible
* @hide
*/
// holder
/***
* @cfg {String} header
* @hide
*/
// holder
/***
* @cfg {Boolean} headerAsText
* @hide
*/
// holder
/***
* @property header
* @hide
*/
// holder
/***
* @property title
* @hide
*/
// holder
/***
* @cfg {Array} tools
* @hide
*/
// holder
/***
* @cfg {Boolean} hideCollapseTool
* @hide
*/
// holder
/***
* @cfg {Boolean} titleCollapse
* @hide
*/
// holder
/***
* @cfg {Boolean} collapsed
* @hide
*/
// holder
/***
* @cfg {String} layout
* @hide
*/
// holder
/***
* @cfg {Object} layoutConfig
* @hide
*/
});
Ext.reg('tabpanel', Ext.TabPanel);
/**
* Sets the specified tab as the active tab. This method fires the {@link #beforetabchange} event which
* can return false to cancel the tab change.
* @param {String/Panel} tab The id or tab Panel to activate
* @method activate
*/
Ext.TabPanel.prototype.activate = Ext.TabPanel.prototype.setActiveTab;
// private utility class used by TabPanel
Ext.TabPanel.AccessStack = function(){
var items = [];
return {
add : function(item){
items.push(item);
if(items.length > 10){
items.shift();
}
},
remove : function(item){
var s = [];
for(var i = 0, len = items.length; i < len; i++) {
if(items[i] != item){
s.push(items[i]);
}
}
items = s;
},
next : function(){
return items.pop();
}
};
};
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All rights reserved.