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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