X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/src/widgets/form/TextArea.js?ds=sidebyside diff --git a/src/widgets/form/TextArea.js b/src/widgets/form/TextArea.js new file mode 100644 index 00000000..0d2a4217 --- /dev/null +++ b/src/widgets/form/TextArea.js @@ -0,0 +1,117 @@ +/*! + * Ext JS Library 3.0.0 + * Copyright(c) 2006-2009 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 {@link Ext.form.TextField#grow grow}=true + * (defaults to 60) + */ + growMin : 60, + /** + * @cfg {Number} growMax The maximum height to allow when {@link Ext.form.TextField#grow grow}=true + * (defaults to 1000) + */ + growMax: 1000, + growAppend : ' \n ', + growPad : Ext.isWebKit ? -6 : 0, + + enterIsSpecial : false, + + /** + * @cfg {Boolean} preventScrollbars true to prevent scrollbars from appearing regardless of how much text is + * in the field (equivalent to setting overflow: hidden, defaults to false) + */ + preventScrollbars: false, + /** + * @cfg {String/Object} autoCreate

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 {@link Ext.Component#autoEl autoEl} for details. Defaults to:

+ *
{tag: "textarea", style: "width:100px;height:60px;", autocomplete: "off"}
+ */ + + // 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.destroy(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 + onKeyUp : function(e){ + if(!e.isNavKeyPress() || e.getKey() == e.ENTER){ + this.autoSize(); + } + Ext.form.TextArea.superclass.onKeyUp.call(this, e); + }, + + /** + * 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; + var v = el.dom.value; + var ts = this.textSizeEl; + ts.innerHTML = ''; + ts.appendChild(document.createTextNode(v)); + v = ts.innerHTML; + Ext.fly(ts).setWidth(this.el.getWidth()); + if(v.length < 1){ + v = "  "; + }else{ + v += this.growAppend; + if(Ext.isIE){ + v = v.replace(/\n/g, '
'); + } + } + ts.innerHTML = v; + var h = Math.min(this.growMax, Math.max(ts.offsetHeight, this.growMin) + this.growPad); + if(h != this.lastHeight){ + this.lastHeight = h; + this.el.setHeight(h); + this.fireEvent("autosize", this, h); + } + } +}); +Ext.reg('textarea', Ext.form.TextArea); \ No newline at end of file