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Max value #37

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Max value #37

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31 changes: 29 additions & 2 deletions numeric/jquery.numeric.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,8 @@
* @example $(".numeric").numeric();
* @example $(".numeric").numeric(","); // use , as separator
* @example $(".numeric").numeric({ decimal : "," }); // use , as separator
* @example $(".numeric").numeric({ max : 999 }); // max value
* @example $(".numeric").numeric({ max : 'auto' }); // max value <input type="text" data-max="999" />
* @example $(".numeric").numeric({ negative : false }); // do not allow negative values
* @example $(".numeric").numeric(null, callback); // use default values, pass on the 'callback' function
*
Expand All @@ -34,14 +36,17 @@ $.fn.numeric = function(config, callback)
config = config || {};
// if config.negative undefined, set to true (default is to allow negative numbers)
if(typeof config.negative == "undefined") { config.negative = true; }
if(typeof config.max == "undefined") { config.max = false; }
// set decimal point
var decimal = (config.decimal === false) ? "" : config.decimal || ".";
// allow negatives
var negative = (config.negative === true) ? true : false;
// max value
var max = (config.max === false) ? false : config.max;
// callback function
callback = (typeof(callback) == "function" ? callback : function() {});
// set data and methods
return this.data("numeric.decimal", decimal).data("numeric.negative", negative).data("numeric.callback", callback).keypress($.fn.numeric.keypress).keyup($.fn.numeric.keyup).blur($.fn.numeric.blur);
return this.data("numeric.decimal", decimal).data("numeric.negative", negative).data("numeric.max", max).data("numeric.callback", callback).keypress($.fn.numeric.keypress).keyup($.fn.numeric.keyup).blur($.fn.numeric.blur);
};

$.fn.numeric.keypress = function(e)
Expand Down Expand Up @@ -134,12 +139,16 @@ $.fn.numeric.keypress = function(e)
{
allow = true;
}
if(allow)
{
allow = $.fn.checkMaxValue(this);
}
return allow;
};

$.fn.numeric.keyup = function(e)
{
var val = $(this).value;
var val = this.value;
if(val && val.length > 0)
{
// get carat (cursor) position
Expand Down Expand Up @@ -217,6 +226,7 @@ $.fn.numeric.keyup = function(e)
}
// set the value and prevent the cursor moving to the end
this.value = val;
$.fn.checkMaxValue(this);
$.fn.setSelection(this, carat);
}
};
Expand Down Expand Up @@ -277,4 +287,21 @@ $.fn.setSelection = function(o, p)
}
};

// check max value
$.fn.checkMaxValue = function(e)
{
var max = $.data(e, "numeric.max");
if(max == 'auto')
{
max = $(e).data("max");
}
var value = $(e).val();
if(max && value >= max)
{
$(e).val(max);
return false;
}
return true;
};

})(jQuery);
6 changes: 6 additions & 0 deletions numeric/test.html
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,10 @@
<input class="numeric" type="text" />
Integers only:
<input class="integer" type="text" />
Integers only, max 999:
<input class="integer-max" type="text" />
Integers only, max auto:
<input class="integer-max-auto" type="text" data-max="999"/>
No negative values:
<input class="positive" type="text" />
No negative values (integer only):
Expand All @@ -19,6 +23,8 @@
<script type="text/javascript">
$(".numeric").numeric();
$(".integer").numeric(false, function() { alert("Integers only"); this.value = ""; this.focus(); });
$(".integer-max").numeric({ max: 999 });
$(".integer-max-auto").numeric({ max: 'auto' });
$(".positive").numeric({ negative: false }, function() { alert("No negative values"); this.value = ""; this.focus(); });
$(".positive-integer").numeric({ decimal: false, negative: false }, function() { alert("Positive integers only"); this.value = ""; this.focus(); });
$("#remove").click(
Expand Down