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<html>
<head>
<title>The source code</title>
<link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
<script type="text/javascript" src="../resources/prettify/prettify.js"></script>
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<pre class="prettyprint lang-js">/*!
* Ext JS Library 3.0.3
* Copyright(c) 2006-2009 Ext JS, LLC
* licensing@extjs.com
* http://www.extjs.com/license
*/
<div id="cls-Ext.layout.ContainerLayout"></div>/**
* @class Ext.layout.ContainerLayout
* <p>The ContainerLayout class is the default layout manager delegated by {@link Ext.Container} to
* render any child Components when no <tt>{@link Ext.Container#layout layout}</tt> is configured into
* a {@link Ext.Container Container}. ContainerLayout provides the basic foundation for all other layout
* classes in Ext. It simply renders all child Components into the Container, performing no sizing or
* positioning services. To utilize a layout that provides sizing and positioning of child Components,
* specify an appropriate <tt>{@link Ext.Container#layout layout}</tt>.</p>
* <p>This class is intended to be extended or created via the <tt><b>{@link Ext.Container#layout layout}</b></tt>
* configuration property. See <tt><b>{@link Ext.Container#layout}</b></tt> for additional details.</p>
*/
Ext.layout.ContainerLayout = function(config){
Ext.apply(this, config);
};
Ext.layout.ContainerLayout.prototype = {
<div id="cfg-Ext.layout.ContainerLayout-extraCls"></div>/**
* @cfg {String} extraCls
* <p>An optional extra CSS class that will be added to the container. This can be useful for adding
* customized styles to the container or any of its children using standard CSS rules. See
* {@link Ext.Component}.{@link Ext.Component#ctCls ctCls} also.</p>
* <p><b>Note</b>: <tt>extraCls</tt> defaults to <tt>''</tt> except for the following classes
* which assign a value by default:
* <div class="mdetail-params"><ul>
* <li>{@link Ext.layout.AbsoluteLayout Absolute Layout} : <tt>'x-abs-layout-item'</tt></li>
* <li>{@link Ext.layout.Box Box Layout} : <tt>'x-box-item'</tt></li>
* <li>{@link Ext.layout.ColumnLayout Column Layout} : <tt>'x-column'</tt></li>
* </ul></div>
* To configure the above Classes with an extra CSS class append to the default. For example,
* for ColumnLayout:<pre><code>
* extraCls: 'x-column custom-class'
* </code></pre>
* </p>
*/
<div id="cfg-Ext.layout.ContainerLayout-renderHidden"></div>/**
* @cfg {Boolean} renderHidden
* True to hide each contained item on render (defaults to false).
*/
<div id="prop-Ext.layout.ContainerLayout-activeItem"></div>/**
* A reference to the {@link Ext.Component} that is active. For example, <pre><code>
* if(myPanel.layout.activeItem.id == 'item-1') { ... }
* </code></pre>
* <tt>activeItem</tt> only applies to layout styles that can display items one at a time
* (like {@link Ext.layout.AccordionLayout}, {@link Ext.layout.CardLayout}
* and {@link Ext.layout.FitLayout}). Read-only. Related to {@link Ext.Container#activeItem}.
* @type {Ext.Component}
* @property activeItem
*/
// private
monitorResize:false,
// private
activeItem : null,
// private
layout : function(){
var target = this.container.getLayoutTarget();
this.onLayout(this.container, target);
this.container.fireEvent('afterlayout', this.container, this);
},
// private
onLayout : function(ct, target){
this.renderAll(ct, target);
},
// private
isValidParent : function(c, target){
return target && c.getDomPositionEl().dom.parentNode == (target.dom || target);
},
// private
renderAll : function(ct, target){
var items = ct.items.items;
for(var i = 0, len = items.length; i < len; i++) {
var c = items[i];
if(c && (!c.rendered || !this.isValidParent(c, target))){
this.renderItem(c, i, target);
}
}
},
// private
renderItem : function(c, position, target){
if(c && !c.rendered){
c.render(target, position);
this.configureItem(c, position);
}else if(c && !this.isValidParent(c, target)){
if(Ext.isNumber(position)){
position = target.dom.childNodes[position];
}
target.dom.insertBefore(c.getDomPositionEl().dom, position || null);
c.container = target;
this.configureItem(c, position);
}
},
// private
configureItem: function(c, position){
if(this.extraCls){
var t = c.getPositionEl ? c.getPositionEl() : c;
t.addClass(this.extraCls);
}
if (this.renderHidden && c != this.activeItem) {
c.hide();
}
if(c.doLayout && this.forceLayout){
c.doLayout(false, true);
}
},
onRemove: function(c){
if(this.activeItem == c){
delete this.activeItem;
}
if(c.rendered && this.extraCls){
var t = c.getPositionEl ? c.getPositionEl() : c;
t.removeClass(this.extraCls);
}
},
// private
onResize: function(){
var ct = this.container,
b;
if(ct.collapsed){
return;
}
if(b = ct.bufferResize){
// Only allow if we should buffer the layout
if(ct.shouldBufferLayout()){
if(!this.resizeTask){
this.resizeTask = new Ext.util.DelayedTask(this.runLayout, this);
this.resizeBuffer = Ext.isNumber(b) ? b : 50;
}
ct.layoutPending = true;
this.resizeTask.delay(this.resizeBuffer);
}
}else{
ct.doLayout();
}
},
// private
runLayout: function(){
var ct = this.container;
ct.doLayout();
delete ct.layoutPending;
},
// private
setContainer : function(ct){
if(this.monitorResize && ct != this.container){
var old = this.container;
if(old){
old.un(old.resizeEvent, this.onResize, this);
}
if(ct){
ct.on(ct.resizeEvent, this.onResize, this);
}
}
this.container = ct;
},
// private
parseMargins : function(v){
if(Ext.isNumber(v)){
v = v.toString();
}
var ms = v.split(' ');
var len = ms.length;
if(len == 1){
ms[1] = ms[0];
ms[2] = ms[0];
ms[3] = ms[0];
}
if(len == 2){
ms[2] = ms[0];
ms[3] = ms[1];
}
if(len == 3){
ms[3] = ms[1];
}
return {
top:parseInt(ms[0], 10) || 0,
right:parseInt(ms[1], 10) || 0,
bottom:parseInt(ms[2], 10) || 0,
left:parseInt(ms[3], 10) || 0
};
},
<div id="prop-Ext.layout.ContainerLayout-fieldTpl"></div>/**
* The {@link Ext.Template Ext.Template} used by Field rendering layout classes (such as
* {@link Ext.layout.FormLayout}) to create the DOM structure of a fully wrapped,
* labeled and styled form Field. A default Template is supplied, but this may be
* overriden to create custom field structures. The template processes values returned from
* {@link Ext.layout.FormLayout#getTemplateArgs}.
* @property fieldTpl
* @type Ext.Template
*/
fieldTpl: (function() {
var t = new Ext.Template(
'<div class="x-form-item {itemCls}" tabIndex="-1">',
'<label for="{id}" style="{labelStyle}" class="x-form-item-label">{label}{labelSeparator}</label>',
'<div class="x-form-element" id="x-form-el-{id}" style="{elementStyle}">',
'</div><div class="{clearCls}"></div>',
'</div>'
);
t.disableFormats = true;
return t.compile();
})(),
/*
* Destroys this layout. This is a template method that is empty by default, but should be implemented
* by subclasses that require explicit destruction to purge event handlers or remove DOM nodes.
* @protected
*/
destroy : Ext.emptyFn
};
Ext.Container.LAYOUTS['auto'] = Ext.layout.ContainerLayout;</pre>
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