build/slider/slider.js

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/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.4.0
*/
/**
 * The Slider component is a UI control that enables the user to adjust 
 * values in a finite range along one or two axes. Typically, the Slider 
 * control is used in a web application as a rich, visual replacement 
 * for an input box that takes a number as input. The Slider control can 
 * also easily accommodate a second dimension, providing x,y output for 
 * a selection point chosen from a rectangular region.
 *
 * @module    slider
 * @title     Slider Widget
 * @namespace YAHOO.widget
 * @requires  yahoo,dom,dragdrop,event
 * @optional  animation
 */

/**
 * A DragDrop implementation that can be used as a background for a
 * slider.  It takes a reference to the thumb instance 
 * so it can delegate some of the events to it.  The goal is to make the 
 * thumb jump to the location on the background when the background is 
 * clicked.  
 *
 * @class Slider
 * @extends YAHOO.util.DragDrop
 * @uses YAHOO.util.EventProvider
 * @constructor
 * @param {String}      id     The id of the element linked to this instance
 * @param {String}      sGroup The group of related DragDrop items
 * @param {SliderThumb} oThumb The thumb for this slider
 * @param {String}      sType  The type of slider (horiz, vert, region)
 */
YAHOO.widget.Slider = function(sElementId, sGroup, oThumb, sType) {

    YAHOO.widget.Slider.ANIM_AVAIL = 
        (!YAHOO.lang.isUndefined(YAHOO.util.Anim));

    if (sElementId) {
        this.init(sElementId, sGroup, true);
        this.initSlider(sType);
        this.initThumb(oThumb);
    }
};

/**
 * Factory method for creating a horizontal slider
 * @method YAHOO.widget.Slider.getHorizSlider
 * @static
 * @param {String} sBGElId the id of the slider's background element
 * @param {String} sHandleElId the id of the thumb element
 * @param {int} iLeft the number of pixels the element can move left
 * @param {int} iRight the number of pixels the element can move right
 * @param {int} iTickSize optional parameter for specifying that the element 
 * should move a certain number pixels at a time.
 * @return {Slider} a horizontal slider control
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