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<html><head><title>BasicLayoutRegion.js</title><link rel="stylesheet" type="text/css" href="../resources/style.css" media="screen"/></head><body><h1>BasicLayoutRegion.js</h1><pre class="highlighted"><code><i>/**
* @class Ext.BasicLayoutRegion
* @extends Ext.util.Observable
* This class represents a lightweight region <b>in</b> a layout manager. This region does not move dom nodes
* and does not have a titlebar, tabs or any other features. All it does is size and position
* panels. To create a BasicLayoutRegion, add lightweight:true or basic:true to your regions config.
*/</i>
Ext.BasicLayoutRegion = <b>function</b>(mgr, config, pos, skipConfig){
<b>this</b>.mgr = mgr;
<b>this</b>.position = pos;
<b>this</b>.events = {
<i>/**
* @event beforeremove
* Fires before a panel is removed (or closed). To cancel the removal set &quot;e.cancel = true&quot; on the event argument.
* @param {Ext.LayoutRegion} <b>this</b>
* @param {Ext.ContentPanel} panel The panel
* @param {Object} e The cancel event object
*/</i>
&quot;beforeremove&quot; : true,
<i>/**
* @event invalidated
* Fires when the layout <b>for</b> this region is changed.
* @param {Ext.LayoutRegion} <b>this</b>
*/</i>
&quot;invalidated&quot; : true,
<i>/**
* @event visibilitychange
* Fires when <b>this</b> region is shown or hidden
* @param {Ext.LayoutRegion} <b>this</b>
* @param {Boolean} visibility true or false
*/</i>
&quot;visibilitychange&quot; : true,
<i>/**
* @event paneladded
* Fires when a panel is added.
* @param {Ext.LayoutRegion} <b>this</b>
* @param {Ext.ContentPanel} panel The panel
*/</i>
&quot;paneladded&quot; : true,
<i>/**
* @event panelremoved
* Fires when a panel is removed.
* @param {Ext.LayoutRegion} <b>this</b>
* @param {Ext.ContentPanel} panel The panel
*/</i>
&quot;panelremoved&quot; : true,
<i>/**
* @event collapsed
* Fires when <b>this</b> region is collapsed.
* @param {Ext.LayoutRegion} <b>this</b>
*/</i>
&quot;collapsed&quot; : true,
<i>/**
* @event expanded
* Fires when <b>this</b> region is expanded.
* @param {Ext.LayoutRegion} <b>this</b>
*/</i>
&quot;expanded&quot; : true,
<i>/**
* @event slideshow
* Fires when <b>this</b> region is slid into view.
* @param {Ext.LayoutRegion} <b>this</b>
*/</i>
&quot;slideshow&quot; : true,
<i>/**
* @event slidehide
* Fires when <b>this</b> region slides out of view.
* @param {Ext.LayoutRegion} <b>this</b>
*/</i>
&quot;slidehide&quot; : true,
<i>/**
* @event panelactivated
* Fires when a panel is activated.
* @param {Ext.LayoutRegion} <b>this</b>
* @param {Ext.ContentPanel} panel The activated panel
*/</i>
&quot;panelactivated&quot; : true,
<i>/**
* @event resized
* Fires when the user resizes <b>this</b> region.
* @param {Ext.LayoutRegion} <b>this</b>
* @param {Number} newSize The <b>new</b> size (width <b>for</b> east/west, height <b>for</b> north/south)
*/</i>
&quot;resized&quot; : true
};
<i>/** A collection of panels <b>in</b> this region. @type Ext.util.MixedCollection */</i>
<b>this</b>.panels = <b>new</b> Ext.util.MixedCollection();
<b>this</b>.panels.getKey = <b>this</b>.getPanelId.createDelegate(<b>this</b>);
<b>this</b>.box = null;
<b>this</b>.activePanel = null;
<b>if</b>(skipConfig !== true){
<b>this</b>.applyConfig(config);
}
};
Ext.extend(Ext.BasicLayoutRegion, Ext.util.Observable, {
getPanelId : <b>function</b>(p){
<b>return</b> p.getId();
},
applyConfig : <b>function</b>(config){
<b>this</b>.margins = config.margins || <b>this</b>.margins || {top: 0, left: 0, right:0, bottom: 0};
<b>this</b>.config = config;
},
<i>/**
* Resizes the region to the specified size. For vertical regions (west, east) <b>this</b> adjusts
* the width, <b>for</b> horizontal (north, south) the height.
* @param {Number} newSize The <b>new</b> width or height
*/</i>
resizeTo : <b>function</b>(newSize){
<b>var</b> el = <b>this</b>.el ? <b>this</b>.el :
(<b>this</b>.activePanel ? <b>this</b>.activePanel.getEl() : null);
<b>if</b>(el){
<b>switch</b>(this.position){
<b>case</b> &quot;east&quot;:
<b>case</b> &quot;west&quot;:
el.setWidth(newSize);
<b>this</b>.fireEvent(&quot;resized&quot;, <b>this</b>, newSize);
<b>break</b>;
<b>case</b> &quot;north&quot;:
<b>case</b> &quot;south&quot;:
el.setHeight(newSize);
<b>this</b>.fireEvent(&quot;resized&quot;, <b>this</b>, newSize);
<b>break</b>;
}
}
},
getBox : <b>function</b>(){
<b>return</b> this.activePanel ? <b>this</b>.activePanel.getEl().getBox(false, true) : null;
},
getMargins : <b>function</b>(){
<b>return</b> this.margins;
},
updateBox : <b>function</b>(box){
<b>this</b>.box = box;
<b>var</b> el = <b>this</b>.activePanel.getEl();
el.dom.style.left = box.x + &quot;px&quot;;
el.dom.style.top = box.y + &quot;px&quot;;
<b>this</b>.activePanel.setSize(box.width, box.height);
},
<i>/**
* Returns the container element <b>for</b> this region.
* @<b>return</b> {Ext.Element}
*/</i>
getEl : <b>function</b>(){
<b>return</b> this.activePanel;
},
<i>/**
* Returns true <b>if</b> this region is currently visible.
* @<b>return</b> {Boolean}
*/</i>
isVisible : <b>function</b>(){
<b>return</b> this.activePanel ? true : false;
},
setActivePanel : <b>function</b>(panel){
panel = <b>this</b>.getPanel(panel);
<b>if</b>(this.activePanel &amp;&amp; <b>this</b>.activePanel != panel){
<b>this</b>.activePanel.setActiveState(false);
<b>this</b>.activePanel.getEl().setLeftTop(-10000,-10000);
}
<b>this</b>.activePanel = panel;
panel.setActiveState(true);
<b>if</b>(this.box){
panel.setSize(<b>this</b>.box.width, <b>this</b>.box.height);
}
<b>this</b>.fireEvent(&quot;panelactivated&quot;, <b>this</b>, panel);
<b>this</b>.fireEvent(&quot;invalidated&quot;);
},
<i>/**
* Show the specified panel.
* @param {Number/String/ContentPanel} panelId The panels index, id or the panel itself
* @<b>return</b> {Ext.ContentPanel} The shown panel or null
*/</i>
showPanel : <b>function</b>(panel){
<b>if</b>(panel = <b>this</b>.getPanel(panel)){
<b>this</b>.setActivePanel(panel);
}
<b>return</b> panel;
},
<i>/**
* Get the active panel <b>for</b> this region.
* @<b>return</b> {Ext.ContentPanel} The active panel or null
*/</i>
getActivePanel : <b>function</b>(){
<b>return</b> this.activePanel;
},
<i>/**
* Add the passed ContentPanel(s)
* @param {ContentPanel...} panel The ContentPanel(s) to add (you can pass more than one)
* @<b>return</b> {Ext.ContentPanel} The panel added (<b>if</b> only one was added)
*/</i>
add : <b>function</b>(panel){
<b>if</b>(arguments.length &gt; 1){
<b>for</b>(var i = 0, len = arguments.length; i &lt; len; i++) {
<b>this</b>.add(arguments[i]);
}
<b>return</b> null;
}
<b>if</b>(this.hasPanel(panel)){
<b>this</b>.showPanel(panel);
<b>return</b> panel;
}
<b>var</b> el = panel.getEl();
<b>if</b>(el.dom.parentNode != <b>this</b>.mgr.el.dom){
<b>this</b>.mgr.el.dom.appendChild(el.dom);
}
<b>if</b>(panel.setRegion){
panel.setRegion(<b>this</b>);
}
<b>this</b>.panels.add(panel);
el.setStyle(&quot;position&quot;, &quot;absolute&quot;);
<b>if</b>(!panel.background){
<b>this</b>.setActivePanel(panel);
<b>if</b>(this.config.initialSize &amp;&amp; <b>this</b>.panels.getCount()==1){
<b>this</b>.resizeTo(<b>this</b>.config.initialSize);
}
}
<b>this</b>.fireEvent(&quot;paneladded&quot;, <b>this</b>, panel);
<b>return</b> panel;
},
<i>/**
* Returns true <b>if</b> the panel is <b>in</b> this region.
* @param {Number/String/ContentPanel} panel The panels index, id or the panel itself
* @<b>return</b> {Boolean}
*/</i>
hasPanel : <b>function</b>(panel){
<b>if</b>(typeof panel == &quot;object&quot;){ <i>// must be panel obj</i>
panel = panel.getId();
}
<b>return</b> this.getPanel(panel) ? true : false;
},
<i>/**
* Removes the specified panel. If preservePanel is not true (either here or <b>in</b> the config), the panel is destroyed.
* @param {Number/String/ContentPanel} panel The panels index, id or the panel itself
* @param {Boolean} preservePanel Overrides the config preservePanel option
* @<b>return</b> {Ext.ContentPanel} The panel that was removed
*/</i>
remove : <b>function</b>(panel, preservePanel){
panel = <b>this</b>.getPanel(panel);
<b>if</b>(!panel){
<b>return</b> null;
}
<b>var</b> e = {};
<b>this</b>.fireEvent(&quot;beforeremove&quot;, <b>this</b>, panel, e);
<b>if</b>(e.cancel === true){
<b>return</b> null;
}
<b>var</b> panelId = panel.getId();
<b>this</b>.panels.removeKey(panelId);
<b>return</b> panel;
},
<i>/**
* Returns the panel specified or null <b>if</b> it's not <b>in</b> this region.
* @param {Number/String/ContentPanel} panel The panels index, id or the panel itself
* @<b>return</b> {Ext.ContentPanel}
*/</i>
getPanel : <b>function</b>(id){
<b>if</b>(typeof id == &quot;object&quot;){ <i>// must be panel obj</i>
<b>return</b> id;
}
<b>return</b> this.panels.get(id);
},
<i>/**
* Returns <b>this</b> regions position (north/south/east/west/center).
* @<b>return</b> {String}
*/</i>
getPosition: <b>function</b>(){
<b>return</b> this.position;
}
});</code></pre><hr><div style="font-size:10px;text-align:center;color:gray;">Ext - Copyright &copy; 2006-2007 Ext JS, LLC<br />All rights reserved.</div>
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