[619] | 1 | /* |
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| 2 | * Ext JS Library 2.2.1 |
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| 3 | * Copyright(c) 2006-2009, Ext JS, LLC. |
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| 4 | * licensing@extjs.com |
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| 5 | * |
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| 6 | * http://extjs.com/license |
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| 7 | */ |
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| 8 | |
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| 9 | /** |
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| 10 | * @class Ext.form.NumberField |
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| 11 | * @extends Ext.form.TextField |
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| 12 | * Numeric text field that provides automatic keystroke filtering and numeric validation. |
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| 13 | * @constructor |
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| 14 | * Creates a new NumberField |
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| 15 | * @param {Object} config Configuration options |
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| 16 | */ |
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| 17 | Ext.form.NumberField = Ext.extend(Ext.form.TextField, { |
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| 18 | /** |
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| 19 | * @cfg {RegExp} stripCharsRe @hide |
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| 20 | */ |
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| 21 | /** |
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| 22 | * @cfg {String} fieldClass The default CSS class for the field (defaults to "x-form-field x-form-num-field") |
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| 23 | */ |
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| 24 | fieldClass: "x-form-field x-form-num-field", |
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| 25 | /** |
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| 26 | * @cfg {Boolean} allowDecimals False to disallow decimal values (defaults to true) |
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| 27 | */ |
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| 28 | allowDecimals : true, |
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| 29 | /** |
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| 30 | * @cfg {String} decimalSeparator Character(s) to allow as the decimal separator (defaults to '.') |
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| 31 | */ |
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| 32 | decimalSeparator : ".", |
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| 33 | /** |
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| 34 | * @cfg {Number} decimalPrecision The maximum precision to display after the decimal separator (defaults to 2) |
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| 35 | */ |
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| 36 | decimalPrecision : 2, |
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| 37 | /** |
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| 38 | * @cfg {Boolean} allowNegative False to prevent entering a negative sign (defaults to true) |
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| 39 | */ |
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| 40 | allowNegative : true, |
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| 41 | /** |
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| 42 | * @cfg {Number} minValue The minimum allowed value (defaults to Number.NEGATIVE_INFINITY) |
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| 43 | */ |
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| 44 | minValue : Number.NEGATIVE_INFINITY, |
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| 45 | /** |
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| 46 | * @cfg {Number} maxValue The maximum allowed value (defaults to Number.MAX_VALUE) |
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| 47 | */ |
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| 48 | maxValue : Number.MAX_VALUE, |
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| 49 | /** |
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| 50 | * @cfg {String} minText Error text to display if the minimum value validation fails (defaults to "The minimum value for this field is {minValue}") |
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| 51 | */ |
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| 52 | minText : "The minimum value for this field is {0}", |
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| 53 | /** |
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| 54 | * @cfg {String} maxText Error text to display if the maximum value validation fails (defaults to "The maximum value for this field is {maxValue}") |
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| 55 | */ |
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| 56 | maxText : "The maximum value for this field is {0}", |
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| 57 | /** |
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| 58 | * @cfg {String} nanText Error text to display if the value is not a valid number. For example, this can happen |
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| 59 | * if a valid character like '.' or '-' is left in the field with no number (defaults to "{value} is not a valid number") |
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| 60 | */ |
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| 61 | nanText : "{0} is not a valid number", |
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| 62 | /** |
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| 63 | * @cfg {String} baseChars The base set of characters to evaluate as valid numbers (defaults to '0123456789'). |
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| 64 | */ |
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| 65 | baseChars : "0123456789", |
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| 66 | |
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| 67 | // private |
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| 68 | initEvents : function(){ |
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| 69 | Ext.form.NumberField.superclass.initEvents.call(this); |
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| 70 | var allowed = this.baseChars+''; |
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| 71 | if(this.allowDecimals){ |
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| 72 | allowed += this.decimalSeparator; |
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| 73 | } |
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| 74 | if(this.allowNegative){ |
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| 75 | allowed += "-"; |
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| 76 | } |
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| 77 | this.stripCharsRe = new RegExp('[^'+allowed+']', 'gi'); |
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| 78 | var keyPress = function(e){ |
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| 79 | var k = e.getKey(); |
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| 80 | if(!Ext.isIE && (e.isSpecialKey() || k == e.BACKSPACE || k == e.DELETE)){ |
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| 81 | return; |
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| 82 | } |
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| 83 | var c = e.getCharCode(); |
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| 84 | if(allowed.indexOf(String.fromCharCode(c)) === -1){ |
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| 85 | e.stopEvent(); |
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| 86 | } |
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| 87 | }; |
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| 88 | this.el.on("keypress", keyPress, this); |
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| 89 | }, |
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| 90 | |
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| 91 | // private |
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| 92 | validateValue : function(value){ |
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| 93 | if(!Ext.form.NumberField.superclass.validateValue.call(this, value)){ |
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| 94 | return false; |
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| 95 | } |
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| 96 | if(value.length < 1){ // if it's blank and textfield didn't flag it then it's valid |
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| 97 | return true; |
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| 98 | } |
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| 99 | value = String(value).replace(this.decimalSeparator, "."); |
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| 100 | if(isNaN(value)){ |
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| 101 | this.markInvalid(String.format(this.nanText, value)); |
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| 102 | return false; |
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| 103 | } |
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| 104 | var num = this.parseValue(value); |
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| 105 | if(num < this.minValue){ |
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| 106 | this.markInvalid(String.format(this.minText, this.minValue)); |
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| 107 | return false; |
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| 108 | } |
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| 109 | if(num > this.maxValue){ |
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| 110 | this.markInvalid(String.format(this.maxText, this.maxValue)); |
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| 111 | return false; |
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| 112 | } |
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| 113 | return true; |
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| 114 | }, |
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| 115 | |
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| 116 | getValue : function(){ |
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| 117 | return this.fixPrecision(this.parseValue(Ext.form.NumberField.superclass.getValue.call(this))); |
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| 118 | }, |
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| 119 | |
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| 120 | setValue : function(v){ |
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| 121 | v = typeof v == 'number' ? v : parseFloat(String(v).replace(this.decimalSeparator, ".")); |
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| 122 | v = isNaN(v) ? '' : String(v).replace(".", this.decimalSeparator); |
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| 123 | Ext.form.NumberField.superclass.setValue.call(this, v); |
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| 124 | }, |
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| 125 | |
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| 126 | // private |
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| 127 | parseValue : function(value){ |
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| 128 | value = parseFloat(String(value).replace(this.decimalSeparator, ".")); |
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| 129 | return isNaN(value) ? '' : value; |
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| 130 | }, |
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| 131 | |
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| 132 | // private |
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| 133 | fixPrecision : function(value){ |
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| 134 | var nan = isNaN(value); |
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| 135 | if(!this.allowDecimals || this.decimalPrecision == -1 || nan || !value){ |
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| 136 | return nan ? '' : value; |
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| 137 | } |
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| 138 | return parseFloat(parseFloat(value).toFixed(this.decimalPrecision)); |
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| 139 | }, |
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| 140 | |
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| 141 | beforeBlur : function(){ |
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| 142 | var v = this.parseValue(this.getRawValue()); |
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| 143 | if(v || v === 0){ |
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| 144 | this.setValue(this.fixPrecision(v)); |
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| 145 | } |
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| 146 | } |
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| 147 | }); |
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| 148 | Ext.reg('numberfield', Ext.form.NumberField); |
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