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class Range

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This commit is contained in:
Michael Yoshitaka Erlewine 2010-06-19 16:58:51 -04:00
parent dda8552088
commit 9fabd1adb8
1 changed files with 41 additions and 0 deletions
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41
browser/base/content/tabcandy/core/utils.js
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@ -20,6 +20,7 @@
*
* Contributor(s):
* Ian Gilman <ian@iangilman.com>
* Michael Yoshitaka Erlewine <mitcho@mitcho.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
@ -249,6 +250,46 @@ window.Rect.prototype = {
}
};
// ##########
// Class: Range
// A physical interval, with a min and max.
//
// Constructor: Range
// Creates a Range with the given min and max
window.Range = function(min, max) {
this.min = min;
this.max = max;
};
// ----------
window.isRange = function(r) {
return (r
&& Utils.isNumber(r.min)
&& Utils.isNumber(r.max));
};
window.Range.prototype = {
// ----------
// Function: contains
// Whether the <Range> contains the given value or not
//
// Paramaters
// - a number
contains: function(value) {
return( value >= this.min && value <= this.max );
},
// ----------
// Function: containsWithin
// Whether the <Range>'s interior contains the given value or not
//
// Paramaters
// - a number
containsWithin: function(value) {
return( value > this.min && value < this.max );
},
};
// ##########
// Class: Subscribable
// A mix-in for allowing objects to collect subscribers for custom events.