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<pre class="prettyprint lang-js"><span id='Ext-form-TextArea-method-constructor'><span id='Ext-form-TextArea'>/**
</span></span> * @class Ext.form.TextArea
* @extends Ext.form.TextField
* Multiline text field. Can be used as a direct replacement for traditional textarea fields, plus adds
* support for auto-sizing.
* @constructor
* Creates a new TextArea
* @param {Object} config Configuration options
* @xtype textarea
*/
Ext.form.TextArea = Ext.extend(Ext.form.TextField, {
<span id='Ext-form-TextArea-cfg-growMin'> /**
</span> * @cfg {Number} growMin The minimum height to allow when <tt>{@link Ext.form.TextField#grow grow}=true</tt>
* (defaults to <tt>60</tt>)
*/
growMin : 60,
<span id='Ext-form-TextArea-cfg-growMax'> /**
</span> * @cfg {Number} growMax The maximum height to allow when <tt>{@link Ext.form.TextField#grow grow}=true</tt>
* (defaults to <tt>1000</tt>)
*/
growMax: 1000,
<span id='Ext-form-TextArea-property-growAppend'> growAppend : '&#160;\n&#160;',
</span>
<span id='Ext-form-TextArea-property-enterIsSpecial'> enterIsSpecial : false,
</span>
<span id='Ext-form-TextArea-cfg-preventScrollbars'> /**
</span> * @cfg {Boolean} preventScrollbars <tt>true</tt> to prevent scrollbars from appearing regardless of how much text is
* in the field. This option is only relevant when {@link #grow} is <tt>true</tt>. Equivalent to setting overflow: hidden, defaults to
* <tt>false</tt>.
*/
preventScrollbars: false,
<span id='Ext-form-TextArea-cfg-autoCreate'> /**
</span> * @cfg {String/Object} autoCreate <p>A {@link Ext.DomHelper DomHelper} element spec, or true for a default
* element spec. Used to create the {@link Ext.Component#getEl Element} which will encapsulate this Component.
* See <tt>{@link Ext.Component#autoEl autoEl}</tt> for details. Defaults to:</p>
* <pre><code>{tag: "textarea", style: "width:100px;height:60px;", autocomplete: "off"}</code></pre>
*/
<span id='Ext-form-TextArea-method-onRender'> // private
</span> onRender : function(ct, position){
if(!this.el){
this.defaultAutoCreate = {
tag: "textarea",
style:"width:100px;height:60px;",
autocomplete: "off"
};
}
Ext.form.TextArea.superclass.onRender.call(this, ct, position);
if(this.grow){
this.textSizeEl = Ext.DomHelper.append(document.body, {
tag: "pre", cls: "x-form-grow-sizer"
});
if(this.preventScrollbars){
this.el.setStyle("overflow", "hidden");
}
this.el.setHeight(this.growMin);
}
},
<span id='Ext-form-TextArea-method-onDestroy'> onDestroy : function(){
</span> Ext.removeNode(this.textSizeEl);
Ext.form.TextArea.superclass.onDestroy.call(this);
},
<span id='Ext-form-TextArea-method-fireKey'> fireKey : function(e){
</span> if(e.isSpecialKey() && (this.enterIsSpecial || (e.getKey() != e.ENTER || e.hasModifier()))){
this.fireEvent("specialkey", this, e);
}
},
<span id='Ext-form-TextArea-method-doAutoSize'> // private
</span> doAutoSize : function(e){
return !e.isNavKeyPress() || e.getKey() == e.ENTER;
},
<span id='Ext-form-TextArea-method-filterValidation'> // inherit docs
</span> filterValidation: function(e) {
if(!e.isNavKeyPress() || (!this.enterIsSpecial && e.keyCode == e.ENTER)){
this.validationTask.delay(this.validationDelay);
}
},
<span id='Ext-form-TextArea-method-autoSize'> /**
</span> * Automatically grows the field to accomodate the height of the text up to the maximum field height allowed.
* This only takes effect if grow = true, and fires the {@link #autosize} event if the height changes.
*/
autoSize: function(){
if(!this.grow || !this.textSizeEl){
return;
}
var el = this.el,
v = Ext.util.Format.htmlEncode(el.dom.value),
ts = this.textSizeEl,
h;
Ext.fly(ts).setWidth(this.el.getWidth());
if(v.length < 1){
v = "&#160;&#160;";
}else{
v += this.growAppend;
if(Ext.isIE){
v = v.replace(/\n/g, '&#160;<br />');
}
}
ts.innerHTML = v;
h = Math.min(this.growMax, Math.max(ts.offsetHeight, this.growMin));
if(h != this.lastHeight){
this.lastHeight = h;
this.el.setHeight(h);
this.fireEvent("autosize", this, h);
}
}
});
Ext.reg('textarea', Ext.form.TextArea);</pre>
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