93 lines
2.7 KiB
JavaScript
93 lines
2.7 KiB
JavaScript
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dojo.provide("dijit.form.SimpleTextarea");
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dojo.require("dijit.form.TextBox");
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dojo.declare("dijit.form.SimpleTextarea",
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dijit.form.TextBox,
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{
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// summary:
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// A simple textarea that degrades, and responds to
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// minimal LayoutContainer usage, and works with dijit.form.Form.
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// Doesn't automatically size according to input, like Textarea.
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//
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// example:
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// | <textarea dojoType="dijit.form.SimpleTextarea" name="foo" value="bar" rows=30 cols=40></textarea>
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//
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// example:
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// | new dijit.form.SimpleTextarea({ rows:20, cols:30 }, "foo");
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baseClass: "dijitTextArea",
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attributeMap: dojo.delegate(dijit.form._FormValueWidget.prototype.attributeMap, {
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rows:"textbox", cols: "textbox"
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}),
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// rows: Number
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// The number of rows of text.
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rows: "3",
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// rows: Number
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// The number of characters per line.
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cols: "20",
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templatePath: null,
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templateString: "<textarea ${nameAttrSetting} dojoAttachPoint='focusNode,containerNode,textbox' autocomplete='off'></textarea>",
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postMixInProperties: function(){
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// Copy value from srcNodeRef, unless user specified a value explicitly (or there is no srcNodeRef)
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if(!this.value && this.srcNodeRef){
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this.value = this.srcNodeRef.value;
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}
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this.inherited(arguments);
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},
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filter: function(/*String*/ value){
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// Override TextBox.filter to deal with newlines... specifically (IIRC) this is for IE which writes newlines
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// as \r\n instead of just \n
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if(value){
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value = value.replace(/\r/g,"");
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}
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return this.inherited(arguments);
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},
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postCreate: function(){
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this.inherited(arguments);
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if(dojo.isIE && this.cols){ // attribute selectors is not supported in IE6
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dojo.addClass(this.domNode, "dijitTextAreaCols");
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}
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},
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_previousValue: "",
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_onInput: function(e){
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// Override TextBox._onInput() to enforce maxLength restriction
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if(this.maxLength){
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var maxLength = parseInt(this.maxLength);
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var value = this.textbox.value.replace(/\r/g,'');
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var overflow = value.length - maxLength;
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if(overflow > 0){
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dojo.stopEvent(e);
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var textarea = this.textbox;
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if(textarea.selectionStart){
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var pos = textarea.selectionStart;
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var cr = 0;
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if(dojo.isOpera){
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cr = (this.textbox.value.substring(0,pos).match(/\r/g)||[]).length;
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}
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this.textbox.value = value.substring(0,pos-overflow-cr)+value.substring(pos-cr);
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textarea.setSelectionRange(pos-overflow, pos-overflow);
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}else if(dojo.doc.selection){ //IE
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textarea.focus();
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var range = dojo.doc.selection.createRange();
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// delete overflow characters
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range.moveStart("character", -overflow);
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range.text = '';
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// show cursor
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range.select();
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}
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}
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this._previousValue = this.textbox.value;
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}
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this.inherited(arguments);
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}
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});
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