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upgraded yui to 2.2.2 and yui-ext to 1.0.1a

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JT Smith 2007-07-05 04:23:55 +00:00
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<html><head><title>NumberField.js</title><link rel="stylesheet" type="text/css" href="../resources/style.css" media="screen"/></head><body><h1>NumberField.js</h1><pre class="highlighted"><code><i>/**
* @class Ext.form.NumberField
* @extends Ext.form.TextField
* Numeric text field that provides automatic keystroke filtering and numeric validation.
* @constructor
* Creates a <b>new</b> NumberField
* @param {Object} config Configuration options
*/</i>
Ext.form.NumberField = <b>function</b>(config){
Ext.form.NumberField.superclass.constructor.call(<b>this</b>, config);
};
Ext.extend(Ext.form.NumberField, Ext.form.TextField, {
<i>/**
* @cfg {String} fieldClass The <b>default</b> CSS class <b>for</b> the field (defaults to &quot;x-form-field x-form-num-field&quot;)
*/</i>
fieldClass: &quot;x-form-field x-form-num-field&quot;,
<i>/**
* @cfg {Boolean} allowDecimals False to disallow decimal values (defaults to true)
*/</i>
allowDecimals : true,
<i>/**
* @cfg {String} decimalSeparator Character(s) to allow as the decimal separator (defaults to '.')
*/</i>
decimalSeparator : &quot;.&quot;,
<i>/**
* @cfg {Number} decimalPrecision The maximum precision to display after the decimal separator (defaults to 2)
*/</i>
decimalPrecision : 2,
<i>/**
* @cfg {Boolean} allowNegative False to require only positive numbers (defaults to true)
*/</i>
allowNegative : true,
<i>/**
* @cfg {Number} minValue The minimum allowed value (defaults to Number.NEGATIVE_INFINITY)
*/</i>
minValue : Number.NEGATIVE_INFINITY,
<i>/**
* @cfg {Number} maxValue The maximum allowed value (defaults to Number.MAX_VALUE)
*/</i>
maxValue : Number.MAX_VALUE,
<i>/**
* @cfg {String} minText Error text to display <b>if</b> the minimum value validation fails (defaults to &quot;The minimum value <b>for</b> this field is {minValue}&quot;)
*/</i>
minText : &quot;The minimum value <b>for</b> this field is {0}&quot;,
<i>/**
* @cfg {String} maxText Error text to display <b>if</b> the maximum value validation fails (defaults to &quot;The maximum value <b>for</b> this field is {maxValue}&quot;)
*/</i>
maxText : &quot;The maximum value <b>for</b> this field is {0}&quot;,
<i>/**
* @cfg {String} nanText Error text to display <b>if</b> the value is not a valid number. For example, <b>this</b> can happen
* <b>if</b> a valid character like '.' or '-' is left <b>in</b> the field <b>with</b> no number (defaults to &quot;{value} is not a valid number&quot;)
*/</i>
nanText : &quot;{0} is not a valid number&quot;,
<i>// private</i>
initEvents : <b>function</b>(){
Ext.form.NumberField.superclass.initEvents.call(<b>this</b>);
<b>var</b> allowed = &quot;0123456789&quot;;
<b>if</b>(this.allowDecimals){
allowed += <b>this</b>.decimalSeparator;
}
<b>if</b>(this.allowNegative){
allowed += &quot;-&quot;;
}
<b>var</b> keyPress = <b>function</b>(e){
<b>var</b> k = e.getKey();
<b>if</b>(!Ext.isIE &amp;&amp; (e.isNavKeyPress() || k == e.BACKSPACE || (k == e.DELETE &amp;&amp; e.button == -1))){
<b>return</b>;
}
<b>var</b> c = e.getCharCode();
<b>if</b>(allowed.indexOf(String.fromCharCode(c)) === -1){
e.stopEvent();
}
};
<b>this</b>.el.on(&quot;keypress&quot;, keyPress, <b>this</b>);
},
<i>// private</i>
validateValue : <b>function</b>(value){
<b>if</b>(!Ext.form.NumberField.superclass.validateValue.call(<b>this</b>, value)){
<b>return</b> false;
}
<b>if</b>(value.length &lt; 1){ <i>// <b>if</b> it's blank and textfield didn't flag it then it's valid</i>
<b>return</b> true;
}
value = String(value).replace(<b>this</b>.decimalSeparator, &quot;.&quot;);
<b>if</b>(isNaN(value)){
<b>this</b>.markInvalid(String.format(<b>this</b>.nanText, value));
<b>return</b> false;
}
<b>var</b> num = <b>this</b>.parseValue(value);
<b>if</b>(num &lt; <b>this</b>.minValue){
<b>this</b>.markInvalid(String.format(<b>this</b>.minText, <b>this</b>.minValue));
<b>return</b> false;
}
<b>if</b>(num &gt; <b>this</b>.maxValue){
<b>this</b>.markInvalid(String.format(<b>this</b>.maxText, <b>this</b>.maxValue));
<b>return</b> false;
}
<b>return</b> true;
},
<i>// private</i>
parseValue : <b>function</b>(value){
<b>return</b> parseFloat(String(value).replace(<b>this</b>.decimalSeparator, &quot;.&quot;));
},
<i>// private</i>
fixPrecision : <b>function</b>(value){
<b>if</b>(!<b>this</b>.allowDecimals || <b>this</b>.decimalPrecision == -1 || isNaN(value) || value == 0 || !value){
<b>return</b> value;
}
<i>// <b>this</b> should work but doesn't due to precision error <b>in</b> JS</i>
<i>// <b>var</b> scale = Math.pow(10, <b>this</b>.decimalPrecision);</i>
<i>// <b>var</b> fixed = <b>this</b>.decimalPrecisionFcn(value * scale);</i>
<i>// <b>return</b> fixed / scale;</i>
<i>//</i>
<i>// so here's our workaround:</i>
<b>var</b> scale = Math.pow(10, <b>this</b>.decimalPrecision+1);
<b>var</b> fixed = <b>this</b>.decimalPrecisionFcn(value * scale);
fixed = <b>this</b>.decimalPrecisionFcn(fixed/10);
<b>return</b> fixed / (scale/10);
},
<i>// private</i>
decimalPrecisionFcn : <b>function</b>(v){
<b>return</b> Math.floor(v);
}
});</code></pre><hr><div style="font-size:10px;text-align:center;color:gray;">Ext - Copyright &copy; 2006-2007 Ext JS, LLC<br />All rights reserved.</div>
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