source: [view]
define("dijit/form/SimpleTextarea", ["dojo", "dijit", "dijit/form/TextBox"], function(dojo, dijit) {
dojo.declare("dijit.form.SimpleTextarea",
dijit.form.TextBox,
{
// summary:
// A simple textarea that degrades, and responds to
// minimal LayoutContainer usage, and works with dijit.form.Form.
// Doesn't automatically size according to input, like Textarea.
//
// example:
// |
//
// example:
// | new dijit.form.SimpleTextarea({ rows:20, cols:30 }, "foo");
baseClass: "dijitTextBox dijitTextArea",
attributeMap: dojo.delegate(dijit.form._FormValueWidget.prototype.attributeMap, {
rows:"textbox", cols: "textbox"
}),
// rows: Number
// The number of rows of text.
rows: "3",
// rows: Number
// The number of characters per line.
cols: "20",
templateString: "",
postMixInProperties: function(){
// Copy value from srcNodeRef, unless user specified a value explicitly (or there is no srcNodeRef)
// TODO: parser will handle this in 2.0
if(!this.value && this.srcNodeRef){
this.value = this.srcNodeRef.value;
}
this.inherited(arguments);
},
buildRendering: function(){
this.inherited(arguments);
if(dojo.isIE && this.cols){ // attribute selectors is not supported in IE6
dojo.addClass(this.textbox, "dijitTextAreaCols");
}
},
filter: function(/*String*/ value){
// Override TextBox.filter to deal with newlines... specifically (IIRC) this is for IE which writes newlines
// as \r\n instead of just \n
if(value){
value = value.replace(/\r/g,"");
}
return this.inherited(arguments);
},
_previousValue: "",
_onInput: function(/*Event?*/ e){
// Override TextBox._onInput() to enforce maxLength restriction
if(this.maxLength){
var maxLength = parseInt(this.maxLength);
var value = this.textbox.value.replace(/\r/g,'');
var overflow = value.length - maxLength;
if(overflow > 0){
if(e){ dojo.stopEvent(e); }
var textarea = this.textbox;
if(textarea.selectionStart){
var pos = textarea.selectionStart;
var cr = 0;
if(dojo.isOpera){
cr = (this.textbox.value.substring(0,pos).match(/\r/g) || []).length;
}
this.textbox.value = value.substring(0,pos-overflow-cr)+value.substring(pos-cr);
textarea.setSelectionRange(pos-overflow, pos-overflow);
}else if(dojo.doc.selection){ //IE
textarea.focus();
var range = dojo.doc.selection.createRange();
// delete overflow characters
range.moveStart("character", -overflow);
range.text = '';
// show cursor
range.select();
}
}
this._previousValue = this.textbox.value;
}
this.inherited(arguments);