-/*!
- * Ext JS Library 3.1.1
- * Copyright(c) 2006-2010 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-/**
- * @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, {
- /**
- * @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,
- /**
- * @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,
- growAppend : ' \n ',
-
- enterIsSpecial : false,
-
- /**
- * @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,
- /**
- * @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>
- */
-
- // private
- 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);
- }
- },
-
- onDestroy : function(){
- Ext.removeNode(this.textSizeEl);
- Ext.form.TextArea.superclass.onDestroy.call(this);
- },
-
- fireKey : function(e){
- if(e.isSpecialKey() && (this.enterIsSpecial || (e.getKey() != e.ENTER || e.hasModifier()))){
- this.fireEvent("specialkey", this, e);
- }
- },
-
- // private
- doAutoSize : function(e){
- return !e.isNavKeyPress() || e.getKey() == e.ENTER;
- },
-
- /**
- * 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 = "  ";
- }else{
- v += this.growAppend;
- if(Ext.isIE){
- v = v.replace(/\n/g, ' <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);
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