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2072 lines
64 KiB
2072 lines
64 KiB
YUI.add('yui2-slider', function(Y) {
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var YAHOO = Y.YUI2;
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/*
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Copyright (c) 2011, Yahoo! Inc. All rights reserved.
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Code licensed under the BSD License:
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http://developer.yahoo.com/yui/license.html
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version: 2.9.0
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*/
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/**
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* The Slider component is a UI control that enables the user to adjust
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* values in a finite range along one or two axes. Typically, the Slider
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* control is used in a web application as a rich, visual replacement
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* for an input box that takes a number as input. The Slider control can
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* also easily accommodate a second dimension, providing x,y output for
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* a selection point chosen from a rectangular region.
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*
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* @module slider
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* @title Slider Widget
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* @namespace YAHOO.widget
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* @requires yahoo,dom,dragdrop,event
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* @optional animation
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*/
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(function () {
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var getXY = YAHOO.util.Dom.getXY,
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Event = YAHOO.util.Event,
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_AS = Array.prototype.slice;
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/**
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* A DragDrop implementation that can be used as a background for a
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* slider. It takes a reference to the thumb instance
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* so it can delegate some of the events to it. The goal is to make the
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* thumb jump to the location on the background when the background is
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* clicked.
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*
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* @class Slider
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* @extends YAHOO.util.DragDrop
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* @uses YAHOO.util.EventProvider
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* @constructor
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* @param {String} id The id of the element linked to this instance
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* @param {String} sGroup The group of related DragDrop items
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* @param {SliderThumb} oThumb The thumb for this slider
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* @param {String} sType The type of slider (horiz, vert, region)
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*/
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function Slider(sElementId, sGroup, oThumb, sType) {
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Slider.ANIM_AVAIL = (!YAHOO.lang.isUndefined(YAHOO.util.Anim));
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if (sElementId) {
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this.init(sElementId, sGroup, true);
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this.initSlider(sType);
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this.initThumb(oThumb);
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}
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}
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YAHOO.lang.augmentObject(Slider,{
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/**
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* Factory method for creating a horizontal slider
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* @method YAHOO.widget.Slider.getHorizSlider
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* @static
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* @param {String} sBGElId the id of the slider's background element
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* @param {String} sHandleElId the id of the thumb element
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* @param {int} iLeft the number of pixels the element can move left
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* @param {int} iRight the number of pixels the element can move right
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* @param {int} iTickSize optional parameter for specifying that the element
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* should move a certain number pixels at a time.
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* @return {Slider} a horizontal slider control
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*/
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getHorizSlider :
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function (sBGElId, sHandleElId, iLeft, iRight, iTickSize) {
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return new Slider(sBGElId, sBGElId,
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new YAHOO.widget.SliderThumb(sHandleElId, sBGElId,
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iLeft, iRight, 0, 0, iTickSize), "horiz");
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},
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/**
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* Factory method for creating a vertical slider
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* @method YAHOO.widget.Slider.getVertSlider
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* @static
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* @param {String} sBGElId the id of the slider's background element
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* @param {String} sHandleElId the id of the thumb element
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* @param {int} iUp the number of pixels the element can move up
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* @param {int} iDown the number of pixels the element can move down
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* @param {int} iTickSize optional parameter for specifying that the element
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* should move a certain number pixels at a time.
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* @return {Slider} a vertical slider control
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*/
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getVertSlider :
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function (sBGElId, sHandleElId, iUp, iDown, iTickSize) {
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return new Slider(sBGElId, sBGElId,
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new YAHOO.widget.SliderThumb(sHandleElId, sBGElId, 0, 0,
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iUp, iDown, iTickSize), "vert");
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},
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/**
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* Factory method for creating a slider region like the one in the color
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* picker example
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* @method YAHOO.widget.Slider.getSliderRegion
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* @static
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* @param {String} sBGElId the id of the slider's background element
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* @param {String} sHandleElId the id of the thumb element
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* @param {int} iLeft the number of pixels the element can move left
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* @param {int} iRight the number of pixels the element can move right
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* @param {int} iUp the number of pixels the element can move up
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* @param {int} iDown the number of pixels the element can move down
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* @param {int} iTickSize optional parameter for specifying that the element
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* should move a certain number pixels at a time.
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* @return {Slider} a slider region control
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*/
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getSliderRegion :
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function (sBGElId, sHandleElId, iLeft, iRight, iUp, iDown, iTickSize) {
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return new Slider(sBGElId, sBGElId,
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new YAHOO.widget.SliderThumb(sHandleElId, sBGElId, iLeft, iRight,
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iUp, iDown, iTickSize), "region");
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},
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/**
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* Constant for valueChangeSource, indicating that the user clicked or
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* dragged the slider to change the value.
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* @property Slider.SOURCE_UI_EVENT
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* @final
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* @static
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* @default 1
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*/
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SOURCE_UI_EVENT : 1,
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/**
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* Constant for valueChangeSource, indicating that the value was altered
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* by a programmatic call to setValue/setRegionValue.
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* @property Slider.SOURCE_SET_VALUE
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* @final
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* @static
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* @default 2
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*/
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SOURCE_SET_VALUE : 2,
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/**
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* Constant for valueChangeSource, indicating that the value was altered
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* by hitting any of the supported keyboard characters.
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* @property Slider.SOURCE_KEY_EVENT
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* @final
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* @static
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* @default 2
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*/
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SOURCE_KEY_EVENT : 3,
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/**
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* By default, animation is available if the animation utility is detected.
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* @property Slider.ANIM_AVAIL
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* @static
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* @type boolean
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*/
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ANIM_AVAIL : false
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},true);
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YAHOO.extend(Slider, YAHOO.util.DragDrop, {
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/**
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* Tracks the state of the mouse button to aid in when events are fired.
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*
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* @property _mouseDown
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* @type boolean
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* @default false
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* @private
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*/
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_mouseDown : false,
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/**
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* Override the default setting of dragOnly to true.
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* @property dragOnly
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* @type boolean
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* @default true
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*/
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dragOnly : true,
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/**
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* Initializes the slider. Executed in the constructor
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* @method initSlider
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* @param {string} sType the type of slider (horiz, vert, region)
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*/
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initSlider: function(sType) {
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/**
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* The type of the slider (horiz, vert, region)
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* @property type
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* @type string
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*/
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this.type = sType;
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//this.removeInvalidHandleType("A");
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/**
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* Event the fires when the value of the control changes. If
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* the control is animated the event will fire every point
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* along the way.
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* @event change
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* @param {int} newOffset|x the new offset for normal sliders, or the new
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* x offset for region sliders
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* @param {int} y the number of pixels the thumb has moved on the y axis
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* (region sliders only)
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*/
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this.createEvent("change", this);
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/**
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* Event that fires at the beginning of a slider thumb move.
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* @event slideStart
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*/
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this.createEvent("slideStart", this);
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/**
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* Event that fires at the end of a slider thumb move
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* @event slideEnd
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*/
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this.createEvent("slideEnd", this);
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/**
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* Overrides the isTarget property in YAHOO.util.DragDrop
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* @property isTarget
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* @private
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*/
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this.isTarget = false;
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/**
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* Flag that determines if the thumb will animate when moved
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* @property animate
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* @type boolean
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*/
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this.animate = Slider.ANIM_AVAIL;
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/**
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* Set to false to disable a background click thumb move
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* @property backgroundEnabled
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* @type boolean
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*/
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this.backgroundEnabled = true;
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/**
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* Adjustment factor for tick animation, the more ticks, the
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* faster the animation (by default)
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* @property tickPause
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* @type int
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*/
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this.tickPause = 40;
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/**
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* Enables the arrow, home and end keys, defaults to true.
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* @property enableKeys
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* @type boolean
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*/
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this.enableKeys = true;
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/**
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* Specifies the number of pixels the arrow keys will move the slider.
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* Default is 20.
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* @property keyIncrement
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* @type int
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*/
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this.keyIncrement = 20;
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/**
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* moveComplete is set to true when the slider has moved to its final
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* destination. For animated slider, this value can be checked in
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* the onChange handler to make it possible to execute logic only
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* when the move is complete rather than at all points along the way.
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* Deprecated because this flag is only useful when the background is
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* clicked and the slider is animated. If the user drags the thumb,
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* the flag is updated when the drag is over ... the final onDrag event
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* fires before the mouseup the ends the drag, so the implementer will
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* never see it.
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*
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* @property moveComplete
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* @type Boolean
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* @deprecated use the slideEnd event instead
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*/
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this.moveComplete = true;
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/**
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* If animation is configured, specifies the length of the animation
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* in seconds.
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* @property animationDuration
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* @type int
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* @default 0.2
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*/
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this.animationDuration = 0.2;
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/**
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* Constant for valueChangeSource, indicating that the user clicked or
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* dragged the slider to change the value.
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* @property SOURCE_UI_EVENT
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* @final
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* @default 1
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* @deprecated use static Slider.SOURCE_UI_EVENT
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*/
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this.SOURCE_UI_EVENT = 1;
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/**
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* Constant for valueChangeSource, indicating that the value was altered
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* by a programmatic call to setValue/setRegionValue.
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* @property SOURCE_SET_VALUE
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* @final
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* @default 2
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* @deprecated use static Slider.SOURCE_SET_VALUE
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*/
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this.SOURCE_SET_VALUE = 2;
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/**
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* When the slider value changes, this property is set to identify where
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* the update came from. This will be either 1, meaning the slider was
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* clicked or dragged, or 2, meaning that it was set via a setValue() call.
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* This can be used within event handlers to apply some of the logic only
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* when dealing with one source or another.
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* @property valueChangeSource
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* @type int
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* @since 2.3.0
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*/
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this.valueChangeSource = 0;
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/**
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* Indicates whether or not events will be supressed for the current
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* slide operation
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* @property _silent
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* @type boolean
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* @private
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*/
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this._silent = false;
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/**
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* Saved offset used to protect against NaN problems when slider is
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* set to display:none
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* @property lastOffset
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* @type [int, int]
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*/
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this.lastOffset = [0,0];
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},
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/**
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* Initializes the slider's thumb. Executed in the constructor.
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* @method initThumb
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* @param {YAHOO.widget.SliderThumb} t the slider thumb
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*/
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initThumb: function(t) {
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var self = this;
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/**
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* A YAHOO.widget.SliderThumb instance that we will use to
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* reposition the thumb when the background is clicked
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* @property thumb
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* @type YAHOO.widget.SliderThumb
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*/
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this.thumb = t;
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t.cacheBetweenDrags = true;
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if (t._isHoriz && t.xTicks && t.xTicks.length) {
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this.tickPause = Math.round(360 / t.xTicks.length);
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} else if (t.yTicks && t.yTicks.length) {
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this.tickPause = Math.round(360 / t.yTicks.length);
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}
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// delegate thumb methods
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t.onAvailable = function() {
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return self.setStartSliderState();
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};
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t.onMouseDown = function () {
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self._mouseDown = true;
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return self.focus();
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};
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t.startDrag = function() {
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self._slideStart();
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};
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t.onDrag = function() {
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self.fireEvents(true);
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};
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t.onMouseUp = function() {
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self.thumbMouseUp();
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};
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},
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/**
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* Executed when the slider element is available
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* @method onAvailable
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*/
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onAvailable: function() {
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this._bindKeyEvents();
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},
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/**
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* Sets up the listeners for keydown and key press events.
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*
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* @method _bindKeyEvents
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* @protected
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*/
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_bindKeyEvents : function () {
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Event.on(this.id, "keydown", this.handleKeyDown, this, true);
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Event.on(this.id, "keypress", this.handleKeyPress, this, true);
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},
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/**
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* Executed when a keypress event happens with the control focused.
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* Prevents the default behavior for navigation keys. The actual
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* logic for moving the slider thumb in response to a key event
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* happens in handleKeyDown.
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* @param {Event} e the keypress event
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*/
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handleKeyPress: function(e) {
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if (this.enableKeys) {
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var kc = Event.getCharCode(e);
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switch (kc) {
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case 0x25: // left
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case 0x26: // up
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case 0x27: // right
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case 0x28: // down
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case 0x24: // home
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case 0x23: // end
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Event.preventDefault(e);
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break;
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default:
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}
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}
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},
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/**
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* Executed when a keydown event happens with the control focused.
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* Updates the slider value and display when the keypress is an
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* arrow key, home, or end as long as enableKeys is set to true.
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* @param {Event} e the keydown event
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*/
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handleKeyDown: function(e) {
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if (this.enableKeys) {
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var kc = Event.getCharCode(e),
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t = this.thumb,
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h = this.getXValue(),
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v = this.getYValue(),
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changeValue = true;
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switch (kc) {
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// left
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case 0x25: h -= this.keyIncrement; break;
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// up
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case 0x26: v -= this.keyIncrement; break;
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// right
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case 0x27: h += this.keyIncrement; break;
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// down
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case 0x28: v += this.keyIncrement; break;
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// home
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case 0x24: h = t.leftConstraint;
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v = t.topConstraint;
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break;
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// end
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case 0x23: h = t.rightConstraint;
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v = t.bottomConstraint;
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break;
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default: changeValue = false;
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}
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if (changeValue) {
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if (t._isRegion) {
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this._setRegionValue(Slider.SOURCE_KEY_EVENT, h, v, true);
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} else {
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this._setValue(Slider.SOURCE_KEY_EVENT,
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(t._isHoriz ? h : v), true);
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}
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Event.stopEvent(e);
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}
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}
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},
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|
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/**
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* Initialization that sets up the value offsets once the elements are ready
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* @method setStartSliderState
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*/
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setStartSliderState: function() {
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this.setThumbCenterPoint();
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/**
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* The basline position of the background element, used
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|
* to determine if the background has moved since the last
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* operation.
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* @property baselinePos
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* @type [int, int]
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*/
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this.baselinePos = getXY(this.getEl());
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this.thumb.startOffset = this.thumb.getOffsetFromParent(this.baselinePos);
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if (this.thumb._isRegion) {
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if (this.deferredSetRegionValue) {
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this._setRegionValue.apply(this, this.deferredSetRegionValue);
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this.deferredSetRegionValue = null;
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} else {
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this.setRegionValue(0, 0, true, true, true);
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}
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} else {
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if (this.deferredSetValue) {
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this._setValue.apply(this, this.deferredSetValue);
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this.deferredSetValue = null;
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} else {
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this.setValue(0, true, true, true);
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}
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}
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},
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|
|
/**
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|
* When the thumb is available, we cache the centerpoint of the element so
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* we can position the element correctly when the background is clicked
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|
* @method setThumbCenterPoint
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|
*/
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|
setThumbCenterPoint: function() {
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var el = this.thumb.getEl();
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|
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if (el) {
|
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/**
|
|
* The center of the slider element is stored so we can
|
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* place it in the correct position when the background is clicked.
|
|
* @property thumbCenterPoint
|
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* @type {"x": int, "y": int}
|
|
*/
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|
this.thumbCenterPoint = {
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x: parseInt(el.offsetWidth/2, 10),
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y: parseInt(el.offsetHeight/2, 10)
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};
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}
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},
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|
|
/**
|
|
* Locks the slider, overrides YAHOO.util.DragDrop
|
|
* @method lock
|
|
*/
|
|
lock: function() {
|
|
this.thumb.lock();
|
|
this.locked = true;
|
|
},
|
|
|
|
/**
|
|
* Unlocks the slider, overrides YAHOO.util.DragDrop
|
|
* @method unlock
|
|
*/
|
|
unlock: function() {
|
|
this.thumb.unlock();
|
|
this.locked = false;
|
|
},
|
|
|
|
/**
|
|
* Handles mouseup event on the thumb
|
|
* @method thumbMouseUp
|
|
* @private
|
|
*/
|
|
thumbMouseUp: function() {
|
|
this._mouseDown = false;
|
|
if (!this.isLocked()) {
|
|
this.endMove();
|
|
}
|
|
|
|
},
|
|
|
|
onMouseUp: function() {
|
|
this._mouseDown = false;
|
|
if (this.backgroundEnabled && !this.isLocked()) {
|
|
this.endMove();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns a reference to this slider's thumb
|
|
* @method getThumb
|
|
* @return {SliderThumb} this slider's thumb
|
|
*/
|
|
getThumb: function() {
|
|
return this.thumb;
|
|
},
|
|
|
|
/**
|
|
* Try to focus the element when clicked so we can add
|
|
* accessibility features
|
|
* @method focus
|
|
* @private
|
|
*/
|
|
focus: function() {
|
|
this.valueChangeSource = Slider.SOURCE_UI_EVENT;
|
|
|
|
// Focus the background element if possible
|
|
var el = this.getEl();
|
|
|
|
if (el.focus) {
|
|
try {
|
|
el.focus();
|
|
} catch(e) {
|
|
// Prevent permission denied unhandled exception in FF that can
|
|
// happen when setting focus while another element is handling
|
|
// the blur. @TODO this is still writing to the error log
|
|
// (unhandled error) in FF1.5 with strict error checking on.
|
|
}
|
|
}
|
|
|
|
this.verifyOffset();
|
|
|
|
return !this.isLocked();
|
|
},
|
|
|
|
/**
|
|
* Event that fires when the value of the slider has changed
|
|
* @method onChange
|
|
* @param {int} firstOffset the number of pixels the thumb has moved
|
|
* from its start position. Normal horizontal and vertical sliders will only
|
|
* have the firstOffset. Regions will have both, the first is the horizontal
|
|
* offset, the second the vertical.
|
|
* @param {int} secondOffset the y offset for region sliders
|
|
* @deprecated use instance.subscribe("change") instead
|
|
*/
|
|
onChange: function (firstOffset, secondOffset) {
|
|
/* override me */
|
|
},
|
|
|
|
/**
|
|
* Event that fires when the at the beginning of the slider thumb move
|
|
* @method onSlideStart
|
|
* @deprecated use instance.subscribe("slideStart") instead
|
|
*/
|
|
onSlideStart: function () {
|
|
/* override me */
|
|
},
|
|
|
|
/**
|
|
* Event that fires at the end of a slider thumb move
|
|
* @method onSliderEnd
|
|
* @deprecated use instance.subscribe("slideEnd") instead
|
|
*/
|
|
onSlideEnd: function () {
|
|
/* override me */
|
|
},
|
|
|
|
/**
|
|
* Returns the slider's thumb offset from the start position
|
|
* @method getValue
|
|
* @return {int} the current value
|
|
*/
|
|
getValue: function () {
|
|
return this.thumb.getValue();
|
|
},
|
|
|
|
/**
|
|
* Returns the slider's thumb X offset from the start position
|
|
* @method getXValue
|
|
* @return {int} the current horizontal offset
|
|
*/
|
|
getXValue: function () {
|
|
return this.thumb.getXValue();
|
|
},
|
|
|
|
/**
|
|
* Returns the slider's thumb Y offset from the start position
|
|
* @method getYValue
|
|
* @return {int} the current vertical offset
|
|
*/
|
|
getYValue: function () {
|
|
return this.thumb.getYValue();
|
|
},
|
|
|
|
/**
|
|
* Provides a way to set the value of the slider in code.
|
|
*
|
|
* @method setValue
|
|
* @param {int} newOffset the number of pixels the thumb should be
|
|
* positioned away from the initial start point
|
|
* @param {boolean} skipAnim set to true to disable the animation
|
|
* for this move action (but not others).
|
|
* @param {boolean} force ignore the locked setting and set value anyway
|
|
* @param {boolean} silent when true, do not fire events
|
|
* @return {boolean} true if the move was performed, false if it failed
|
|
*/
|
|
setValue: function() {
|
|
var args = _AS.call(arguments);
|
|
args.unshift(Slider.SOURCE_SET_VALUE);
|
|
return this._setValue.apply(this,args);
|
|
},
|
|
|
|
/**
|
|
* Worker function to execute the value set operation. Accepts type of
|
|
* set operation in addition to the usual setValue params.
|
|
*
|
|
* @method _setValue
|
|
* @param source {int} what triggered the set (e.g. Slider.SOURCE_SET_VALUE)
|
|
* @param {int} newOffset the number of pixels the thumb should be
|
|
* positioned away from the initial start point
|
|
* @param {boolean} skipAnim set to true to disable the animation
|
|
* for this move action (but not others).
|
|
* @param {boolean} force ignore the locked setting and set value anyway
|
|
* @param {boolean} silent when true, do not fire events
|
|
* @return {boolean} true if the move was performed, false if it failed
|
|
* @protected
|
|
*/
|
|
_setValue: function(source, newOffset, skipAnim, force, silent) {
|
|
var t = this.thumb, newX, newY;
|
|
|
|
if (!t.available) {
|
|
this.deferredSetValue = arguments;
|
|
return false;
|
|
}
|
|
|
|
if (this.isLocked() && !force) {
|
|
return false;
|
|
}
|
|
|
|
if ( isNaN(newOffset) ) {
|
|
return false;
|
|
}
|
|
|
|
if (t._isRegion) {
|
|
return false;
|
|
}
|
|
|
|
|
|
this._silent = silent;
|
|
this.valueChangeSource = source || Slider.SOURCE_SET_VALUE;
|
|
|
|
t.lastOffset = [newOffset, newOffset];
|
|
this.verifyOffset();
|
|
|
|
this._slideStart();
|
|
|
|
if (t._isHoriz) {
|
|
newX = t.initPageX + newOffset + this.thumbCenterPoint.x;
|
|
this.moveThumb(newX, t.initPageY, skipAnim);
|
|
} else {
|
|
newY = t.initPageY + newOffset + this.thumbCenterPoint.y;
|
|
this.moveThumb(t.initPageX, newY, skipAnim);
|
|
}
|
|
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Provides a way to set the value of the region slider in code.
|
|
* @method setRegionValue
|
|
* @param {int} newOffset the number of pixels the thumb should be
|
|
* positioned away from the initial start point (x axis for region)
|
|
* @param {int} newOffset2 the number of pixels the thumb should be
|
|
* positioned away from the initial start point (y axis for region)
|
|
* @param {boolean} skipAnim set to true to disable the animation
|
|
* for this move action (but not others).
|
|
* @param {boolean} force ignore the locked setting and set value anyway
|
|
* @param {boolean} silent when true, do not fire events
|
|
* @return {boolean} true if the move was performed, false if it failed
|
|
*/
|
|
setRegionValue : function () {
|
|
var args = _AS.call(arguments);
|
|
args.unshift(Slider.SOURCE_SET_VALUE);
|
|
return this._setRegionValue.apply(this,args);
|
|
},
|
|
|
|
/**
|
|
* Worker function to execute the value set operation. Accepts type of
|
|
* set operation in addition to the usual setValue params.
|
|
*
|
|
* @method _setRegionValue
|
|
* @param source {int} what triggered the set (e.g. Slider.SOURCE_SET_VALUE)
|
|
* @param {int} newOffset the number of pixels the thumb should be
|
|
* positioned away from the initial start point (x axis for region)
|
|
* @param {int} newOffset2 the number of pixels the thumb should be
|
|
* positioned away from the initial start point (y axis for region)
|
|
* @param {boolean} skipAnim set to true to disable the animation
|
|
* for this move action (but not others).
|
|
* @param {boolean} force ignore the locked setting and set value anyway
|
|
* @param {boolean} silent when true, do not fire events
|
|
* @return {boolean} true if the move was performed, false if it failed
|
|
* @protected
|
|
*/
|
|
_setRegionValue: function(source, newOffset, newOffset2, skipAnim, force, silent) {
|
|
var t = this.thumb, newX, newY;
|
|
|
|
if (!t.available) {
|
|
this.deferredSetRegionValue = arguments;
|
|
return false;
|
|
}
|
|
|
|
if (this.isLocked() && !force) {
|
|
return false;
|
|
}
|
|
|
|
if ( isNaN(newOffset) ) {
|
|
return false;
|
|
}
|
|
|
|
if (!t._isRegion) {
|
|
return false;
|
|
}
|
|
|
|
this._silent = silent;
|
|
|
|
this.valueChangeSource = source || Slider.SOURCE_SET_VALUE;
|
|
|
|
t.lastOffset = [newOffset, newOffset2];
|
|
this.verifyOffset();
|
|
|
|
this._slideStart();
|
|
|
|
newX = t.initPageX + newOffset + this.thumbCenterPoint.x;
|
|
newY = t.initPageY + newOffset2 + this.thumbCenterPoint.y;
|
|
this.moveThumb(newX, newY, skipAnim);
|
|
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Checks the background position element position. If it has moved from the
|
|
* baseline position, the constraints for the thumb are reset
|
|
* @method verifyOffset
|
|
* @return {boolean} True if the offset is the same as the baseline.
|
|
*/
|
|
verifyOffset: function() {
|
|
|
|
var xy = getXY(this.getEl()),
|
|
t = this.thumb;
|
|
|
|
if (!this.thumbCenterPoint || !this.thumbCenterPoint.x) {
|
|
this.setThumbCenterPoint();
|
|
}
|
|
|
|
if (xy) {
|
|
|
|
|
|
if (xy[0] != this.baselinePos[0] || xy[1] != this.baselinePos[1]) {
|
|
|
|
// Reset background
|
|
this.setInitPosition();
|
|
this.baselinePos = xy;
|
|
|
|
// Reset thumb
|
|
t.initPageX = this.initPageX + t.startOffset[0];
|
|
t.initPageY = this.initPageY + t.startOffset[1];
|
|
t.deltaSetXY = null;
|
|
this.resetThumbConstraints();
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Move the associated slider moved to a timeout to try to get around the
|
|
* mousedown stealing moz does when I move the slider element between the
|
|
* cursor and the background during the mouseup event
|
|
* @method moveThumb
|
|
* @param {int} x the X coordinate of the click
|
|
* @param {int} y the Y coordinate of the click
|
|
* @param {boolean} skipAnim don't animate if the move happend onDrag
|
|
* @param {boolean} midMove set to true if this is not terminating
|
|
* the slider movement
|
|
* @private
|
|
*/
|
|
moveThumb: function(x, y, skipAnim, midMove) {
|
|
|
|
var t = this.thumb,
|
|
self = this,
|
|
p,_p,anim;
|
|
|
|
if (!t.available) {
|
|
return;
|
|
}
|
|
|
|
|
|
t.setDelta(this.thumbCenterPoint.x, this.thumbCenterPoint.y);
|
|
|
|
_p = t.getTargetCoord(x, y);
|
|
p = [Math.round(_p.x), Math.round(_p.y)];
|
|
|
|
if (this.animate && t._graduated && !skipAnim) {
|
|
this.lock();
|
|
|
|
// cache the current thumb pos
|
|
this.curCoord = getXY(this.thumb.getEl());
|
|
this.curCoord = [Math.round(this.curCoord[0]), Math.round(this.curCoord[1])];
|
|
|
|
setTimeout( function() { self.moveOneTick(p); }, this.tickPause );
|
|
|
|
} else if (this.animate && Slider.ANIM_AVAIL && !skipAnim) {
|
|
|
|
this.lock();
|
|
|
|
anim = new YAHOO.util.Motion(
|
|
t.id, { points: { to: p } },
|
|
this.animationDuration,
|
|
YAHOO.util.Easing.easeOut );
|
|
|
|
anim.onComplete.subscribe( function() {
|
|
self.unlock();
|
|
if (!self._mouseDown) {
|
|
self.endMove();
|
|
}
|
|
});
|
|
anim.animate();
|
|
|
|
} else {
|
|
t.setDragElPos(x, y);
|
|
if (!midMove && !this._mouseDown) {
|
|
this.endMove();
|
|
}
|
|
}
|
|
},
|
|
|
|
_slideStart: function() {
|
|
if (!this._sliding) {
|
|
if (!this._silent) {
|
|
this.onSlideStart();
|
|
this.fireEvent("slideStart");
|
|
}
|
|
this._sliding = true;
|
|
this.moveComplete = false; // for backward compatibility. Deprecated
|
|
}
|
|
},
|
|
|
|
_slideEnd: function() {
|
|
if (this._sliding) {
|
|
// Reset state before firing slideEnd
|
|
var silent = this._silent;
|
|
this._sliding = false;
|
|
this.moveComplete = true; // for backward compatibility. Deprecated
|
|
this._silent = false;
|
|
if (!silent) {
|
|
this.onSlideEnd();
|
|
this.fireEvent("slideEnd");
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Move the slider one tick mark towards its final coordinate. Used
|
|
* for the animation when tick marks are defined
|
|
* @method moveOneTick
|
|
* @param {int[]} the destination coordinate
|
|
* @private
|
|
*/
|
|
moveOneTick: function(finalCoord) {
|
|
|
|
var t = this.thumb,
|
|
self = this,
|
|
nextCoord = null,
|
|
tmpX, tmpY;
|
|
|
|
if (t._isRegion) {
|
|
nextCoord = this._getNextX(this.curCoord, finalCoord);
|
|
tmpX = (nextCoord !== null) ? nextCoord[0] : this.curCoord[0];
|
|
nextCoord = this._getNextY(this.curCoord, finalCoord);
|
|
tmpY = (nextCoord !== null) ? nextCoord[1] : this.curCoord[1];
|
|
|
|
nextCoord = tmpX !== this.curCoord[0] || tmpY !== this.curCoord[1] ?
|
|
[ tmpX, tmpY ] : null;
|
|
} else if (t._isHoriz) {
|
|
nextCoord = this._getNextX(this.curCoord, finalCoord);
|
|
} else {
|
|
nextCoord = this._getNextY(this.curCoord, finalCoord);
|
|
}
|
|
|
|
|
|
if (nextCoord) {
|
|
|
|
// cache the position
|
|
this.curCoord = nextCoord;
|
|
|
|
// move to the next coord
|
|
this.thumb.alignElWithMouse(t.getEl(), nextCoord[0] + this.thumbCenterPoint.x, nextCoord[1] + this.thumbCenterPoint.y);
|
|
|
|
// check if we are in the final position, if not make a recursive call
|
|
if (!(nextCoord[0] == finalCoord[0] && nextCoord[1] == finalCoord[1])) {
|
|
setTimeout(function() { self.moveOneTick(finalCoord); },
|
|
this.tickPause);
|
|
} else {
|
|
this.unlock();
|
|
if (!this._mouseDown) {
|
|
this.endMove();
|
|
}
|
|
}
|
|
} else {
|
|
this.unlock();
|
|
if (!this._mouseDown) {
|
|
this.endMove();
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns the next X tick value based on the current coord and the target coord.
|
|
* @method _getNextX
|
|
* @private
|
|
*/
|
|
_getNextX: function(curCoord, finalCoord) {
|
|
var t = this.thumb,
|
|
thresh,
|
|
tmp = [],
|
|
nextCoord = null;
|
|
|
|
if (curCoord[0] > finalCoord[0]) {
|
|
thresh = t.tickSize - this.thumbCenterPoint.x;
|
|
tmp = t.getTargetCoord( curCoord[0] - thresh, curCoord[1] );
|
|
nextCoord = [tmp.x, tmp.y];
|
|
} else if (curCoord[0] < finalCoord[0]) {
|
|
thresh = t.tickSize + this.thumbCenterPoint.x;
|
|
tmp = t.getTargetCoord( curCoord[0] + thresh, curCoord[1] );
|
|
nextCoord = [tmp.x, tmp.y];
|
|
} else {
|
|
// equal, do nothing
|
|
}
|
|
|
|
return nextCoord;
|
|
},
|
|
|
|
/**
|
|
* Returns the next Y tick value based on the current coord and the target coord.
|
|
* @method _getNextY
|
|
* @private
|
|
*/
|
|
_getNextY: function(curCoord, finalCoord) {
|
|
var t = this.thumb,
|
|
thresh,
|
|
tmp = [],
|
|
nextCoord = null;
|
|
|
|
if (curCoord[1] > finalCoord[1]) {
|
|
thresh = t.tickSize - this.thumbCenterPoint.y;
|
|
tmp = t.getTargetCoord( curCoord[0], curCoord[1] - thresh );
|
|
nextCoord = [tmp.x, tmp.y];
|
|
} else if (curCoord[1] < finalCoord[1]) {
|
|
thresh = t.tickSize + this.thumbCenterPoint.y;
|
|
tmp = t.getTargetCoord( curCoord[0], curCoord[1] + thresh );
|
|
nextCoord = [tmp.x, tmp.y];
|
|
} else {
|
|
// equal, do nothing
|
|
}
|
|
|
|
return nextCoord;
|
|
},
|
|
|
|
/**
|
|
* Resets the constraints before moving the thumb.
|
|
* @method b4MouseDown
|
|
* @private
|
|
*/
|
|
b4MouseDown: function(e) {
|
|
if (!this.backgroundEnabled) {
|
|
return false;
|
|
}
|
|
|
|
this.thumb.autoOffset();
|
|
this.baselinePos = [];
|
|
},
|
|
|
|
/**
|
|
* Handles the mousedown event for the slider background
|
|
* @method onMouseDown
|
|
* @private
|
|
*/
|
|
onMouseDown: function(e) {
|
|
if (!this.backgroundEnabled || this.isLocked()) {
|
|
return false;
|
|
}
|
|
|
|
this._mouseDown = true;
|
|
|
|
var x = Event.getPageX(e),
|
|
y = Event.getPageY(e);
|
|
|
|
|
|
this.focus();
|
|
this._slideStart();
|
|
this.moveThumb(x, y);
|
|
},
|
|
|
|
/**
|
|
* Handles the onDrag event for the slider background
|
|
* @method onDrag
|
|
* @private
|
|
*/
|
|
onDrag: function(e) {
|
|
if (this.backgroundEnabled && !this.isLocked()) {
|
|
var x = Event.getPageX(e),
|
|
y = Event.getPageY(e);
|
|
this.moveThumb(x, y, true, true);
|
|
this.fireEvents();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Fired when the slider movement ends
|
|
* @method endMove
|
|
* @private
|
|
*/
|
|
endMove: function () {
|
|
this.unlock();
|
|
this.fireEvents();
|
|
this._slideEnd();
|
|
},
|
|
|
|
/**
|
|
* Resets the X and Y contraints for the thumb. Used in lieu of the thumb
|
|
* instance's inherited resetConstraints because some logic was not
|
|
* applicable.
|
|
* @method resetThumbConstraints
|
|
* @protected
|
|
*/
|
|
resetThumbConstraints: function () {
|
|
var t = this.thumb;
|
|
|
|
t.setXConstraint(t.leftConstraint, t.rightConstraint, t.xTickSize);
|
|
t.setYConstraint(t.topConstraint, t.bottomConstraint, t.xTickSize);
|
|
},
|
|
|
|
/**
|
|
* Fires the change event if the value has been changed. Ignored if we are in
|
|
* the middle of an animation as the event will fire when the animation is
|
|
* complete
|
|
* @method fireEvents
|
|
* @param {boolean} thumbEvent set to true if this event is fired from an event
|
|
* that occurred on the thumb. If it is, the state of the
|
|
* thumb dd object should be correct. Otherwise, the event
|
|
* originated on the background, so the thumb state needs to
|
|
* be refreshed before proceeding.
|
|
* @private
|
|
*/
|
|
fireEvents: function (thumbEvent) {
|
|
|
|
var t = this.thumb, newX, newY, newVal;
|
|
|
|
if (!thumbEvent) {
|
|
t.cachePosition();
|
|
}
|
|
|
|
if (! this.isLocked()) {
|
|
if (t._isRegion) {
|
|
newX = t.getXValue();
|
|
newY = t.getYValue();
|
|
|
|
if (newX != this.previousX || newY != this.previousY) {
|
|
if (!this._silent) {
|
|
this.onChange(newX, newY);
|
|
this.fireEvent("change", { x: newX, y: newY });
|
|
}
|
|
}
|
|
|
|
this.previousX = newX;
|
|
this.previousY = newY;
|
|
|
|
} else {
|
|
newVal = t.getValue();
|
|
if (newVal != this.previousVal) {
|
|
if (!this._silent) {
|
|
this.onChange( newVal );
|
|
this.fireEvent("change", newVal);
|
|
}
|
|
}
|
|
this.previousVal = newVal;
|
|
}
|
|
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Slider toString
|
|
* @method toString
|
|
* @return {string} string representation of the instance
|
|
*/
|
|
toString: function () {
|
|
return ("Slider (" + this.type +") " + this.id);
|
|
}
|
|
|
|
});
|
|
|
|
YAHOO.lang.augmentProto(Slider, YAHOO.util.EventProvider);
|
|
|
|
YAHOO.widget.Slider = Slider;
|
|
})();
|
|
/**
|
|
* A drag and drop implementation to be used as the thumb of a slider.
|
|
* @class SliderThumb
|
|
* @extends YAHOO.util.DD
|
|
* @constructor
|
|
* @param {String} id the id of the slider html element
|
|
* @param {String} sGroup the group of related DragDrop items
|
|
* @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} iUp the number of pixels the element can move up
|
|
* @param {int} iDown the number of pixels the element can move down
|
|
* @param {int} iTickSize optional parameter for specifying that the element
|
|
* should move a certain number pixels at a time.
|
|
*/
|
|
YAHOO.widget.SliderThumb = function(id, sGroup, iLeft, iRight, iUp, iDown, iTickSize) {
|
|
|
|
if (id) {
|
|
YAHOO.widget.SliderThumb.superclass.constructor.call(this, id, sGroup);
|
|
|
|
/**
|
|
* The id of the thumbs parent HTML element (the slider background
|
|
* element).
|
|
* @property parentElId
|
|
* @type string
|
|
*/
|
|
this.parentElId = sGroup;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Overrides the isTarget property in YAHOO.util.DragDrop
|
|
* @property isTarget
|
|
* @private
|
|
*/
|
|
this.isTarget = false;
|
|
|
|
/**
|
|
* The tick size for this slider
|
|
* @property tickSize
|
|
* @type int
|
|
* @private
|
|
*/
|
|
this.tickSize = iTickSize;
|
|
|
|
/**
|
|
* Informs the drag and drop util that the offsets should remain when
|
|
* resetting the constraints. This preserves the slider value when
|
|
* the constraints are reset
|
|
* @property maintainOffset
|
|
* @type boolean
|
|
* @private
|
|
*/
|
|
this.maintainOffset = true;
|
|
|
|
this.initSlider(iLeft, iRight, iUp, iDown, iTickSize);
|
|
|
|
/**
|
|
* Turns off the autoscroll feature in drag and drop
|
|
* @property scroll
|
|
* @private
|
|
*/
|
|
this.scroll = false;
|
|
|
|
};
|
|
|
|
YAHOO.extend(YAHOO.widget.SliderThumb, YAHOO.util.DD, {
|
|
|
|
/**
|
|
* The (X and Y) difference between the thumb location and its parent
|
|
* (the slider background) when the control is instantiated.
|
|
* @property startOffset
|
|
* @type [int, int]
|
|
*/
|
|
startOffset: null,
|
|
|
|
/**
|
|
* Override the default setting of dragOnly to true.
|
|
* @property dragOnly
|
|
* @type boolean
|
|
* @default true
|
|
*/
|
|
dragOnly : true,
|
|
|
|
/**
|
|
* Flag used to figure out if this is a horizontal or vertical slider
|
|
* @property _isHoriz
|
|
* @type boolean
|
|
* @private
|
|
*/
|
|
_isHoriz: false,
|
|
|
|
/**
|
|
* Cache the last value so we can check for change
|
|
* @property _prevVal
|
|
* @type int
|
|
* @private
|
|
*/
|
|
_prevVal: 0,
|
|
|
|
/**
|
|
* The slider is _graduated if there is a tick interval defined
|
|
* @property _graduated
|
|
* @type boolean
|
|
* @private
|
|
*/
|
|
_graduated: false,
|
|
|
|
|
|
/**
|
|
* Returns the difference between the location of the thumb and its parent.
|
|
* @method getOffsetFromParent
|
|
* @param {[int, int]} parentPos Optionally accepts the position of the parent
|
|
* @type [int, int]
|
|
*/
|
|
getOffsetFromParent0: function(parentPos) {
|
|
var myPos = YAHOO.util.Dom.getXY(this.getEl()),
|
|
ppos = parentPos || YAHOO.util.Dom.getXY(this.parentElId);
|
|
|
|
return [ (myPos[0] - ppos[0]), (myPos[1] - ppos[1]) ];
|
|
},
|
|
|
|
getOffsetFromParent: function(parentPos) {
|
|
|
|
var el = this.getEl(), newOffset,
|
|
myPos,ppos,l,t,deltaX,deltaY,newLeft,newTop;
|
|
|
|
if (!this.deltaOffset) {
|
|
|
|
myPos = YAHOO.util.Dom.getXY(el);
|
|
ppos = parentPos || YAHOO.util.Dom.getXY(this.parentElId);
|
|
|
|
newOffset = [ (myPos[0] - ppos[0]), (myPos[1] - ppos[1]) ];
|
|
|
|
l = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
|
|
t = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
|
|
|
|
deltaX = l - newOffset[0];
|
|
deltaY = t - newOffset[1];
|
|
|
|
if (isNaN(deltaX) || isNaN(deltaY)) {
|
|
} else {
|
|
this.deltaOffset = [deltaX, deltaY];
|
|
}
|
|
|
|
} else {
|
|
newLeft = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
|
|
newTop = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
|
|
|
|
newOffset = [newLeft + this.deltaOffset[0], newTop + this.deltaOffset[1]];
|
|
}
|
|
|
|
return newOffset;
|
|
},
|
|
|
|
/**
|
|
* Set up the slider, must be called in the constructor of all subclasses
|
|
* @method initSlider
|
|
* @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} iUp the number of pixels the element can move up
|
|
* @param {int} iDown the number of pixels the element can move down
|
|
* @param {int} iTickSize the width of the tick interval.
|
|
*/
|
|
initSlider: function (iLeft, iRight, iUp, iDown, iTickSize) {
|
|
this.initLeft = iLeft;
|
|
this.initRight = iRight;
|
|
this.initUp = iUp;
|
|
this.initDown = iDown;
|
|
|
|
this.setXConstraint(iLeft, iRight, iTickSize);
|
|
this.setYConstraint(iUp, iDown, iTickSize);
|
|
|
|
if (iTickSize && iTickSize > 1) {
|
|
this._graduated = true;
|
|
}
|
|
|
|
this._isHoriz = (iLeft || iRight);
|
|
this._isVert = (iUp || iDown);
|
|
this._isRegion = (this._isHoriz && this._isVert);
|
|
|
|
},
|
|
|
|
/**
|
|
* Clear's the slider's ticks
|
|
* @method clearTicks
|
|
*/
|
|
clearTicks: function () {
|
|
YAHOO.widget.SliderThumb.superclass.clearTicks.call(this);
|
|
this.tickSize = 0;
|
|
this._graduated = false;
|
|
},
|
|
|
|
|
|
/**
|
|
* Gets the current offset from the element's start position in
|
|
* pixels.
|
|
* @method getValue
|
|
* @return {int} the number of pixels (positive or negative) the
|
|
* slider has moved from the start position.
|
|
*/
|
|
getValue: function () {
|
|
return (this._isHoriz) ? this.getXValue() : this.getYValue();
|
|
},
|
|
|
|
/**
|
|
* Gets the current X offset from the element's start position in
|
|
* pixels.
|
|
* @method getXValue
|
|
* @return {int} the number of pixels (positive or negative) the
|
|
* slider has moved horizontally from the start position.
|
|
*/
|
|
getXValue: function () {
|
|
if (!this.available) {
|
|
return 0;
|
|
}
|
|
var newOffset = this.getOffsetFromParent();
|
|
if (YAHOO.lang.isNumber(newOffset[0])) {
|
|
this.lastOffset = newOffset;
|
|
return (newOffset[0] - this.startOffset[0]);
|
|
} else {
|
|
return (this.lastOffset[0] - this.startOffset[0]);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Gets the current Y offset from the element's start position in
|
|
* pixels.
|
|
* @method getYValue
|
|
* @return {int} the number of pixels (positive or negative) the
|
|
* slider has moved vertically from the start position.
|
|
*/
|
|
getYValue: function () {
|
|
if (!this.available) {
|
|
return 0;
|
|
}
|
|
var newOffset = this.getOffsetFromParent();
|
|
if (YAHOO.lang.isNumber(newOffset[1])) {
|
|
this.lastOffset = newOffset;
|
|
return (newOffset[1] - this.startOffset[1]);
|
|
} else {
|
|
return (this.lastOffset[1] - this.startOffset[1]);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Thumb toString
|
|
* @method toString
|
|
* @return {string} string representation of the instance
|
|
*/
|
|
toString: function () {
|
|
return "SliderThumb " + this.id;
|
|
},
|
|
|
|
/**
|
|
* The onchange event for the handle/thumb is delegated to the YAHOO.widget.Slider
|
|
* instance it belongs to.
|
|
* @method onChange
|
|
* @private
|
|
*/
|
|
onChange: function (x, y) {
|
|
}
|
|
|
|
});
|
|
/**
|
|
* A slider with two thumbs, one that represents the min value and
|
|
* the other the max. Actually a composition of two sliders, both with
|
|
* the same background. The constraints for each slider are adjusted
|
|
* dynamically so that the min value of the max slider is equal or greater
|
|
* to the current value of the min slider, and the max value of the min
|
|
* slider is the current value of the max slider.
|
|
* Constructor assumes both thumbs are positioned absolutely at the 0 mark on
|
|
* the background.
|
|
*
|
|
* @namespace YAHOO.widget
|
|
* @class DualSlider
|
|
* @uses YAHOO.util.EventProvider
|
|
* @constructor
|
|
* @param {Slider} minSlider The Slider instance used for the min value thumb
|
|
* @param {Slider} maxSlider The Slider instance used for the max value thumb
|
|
* @param {int} range The number of pixels the thumbs may move within
|
|
* @param {Array} initVals (optional) [min,max] Initial thumb placement
|
|
*/
|
|
(function () {
|
|
|
|
var Event = YAHOO.util.Event,
|
|
YW = YAHOO.widget;
|
|
|
|
function DualSlider(minSlider, maxSlider, range, initVals) {
|
|
|
|
var self = this,
|
|
ready = { min : false, max : false },
|
|
minThumbOnMouseDown, maxThumbOnMouseDown;
|
|
|
|
/**
|
|
* A slider instance that keeps track of the lower value of the range.
|
|
* <strong>read only</strong>
|
|
* @property minSlider
|
|
* @type Slider
|
|
*/
|
|
this.minSlider = minSlider;
|
|
|
|
/**
|
|
* A slider instance that keeps track of the upper value of the range.
|
|
* <strong>read only</strong>
|
|
* @property maxSlider
|
|
* @type Slider
|
|
*/
|
|
this.maxSlider = maxSlider;
|
|
|
|
/**
|
|
* The currently active slider (min or max). <strong>read only</strong>
|
|
* @property activeSlider
|
|
* @type Slider
|
|
*/
|
|
this.activeSlider = minSlider;
|
|
|
|
/**
|
|
* Is the DualSlider oriented horizontally or vertically?
|
|
* <strong>read only</strong>
|
|
* @property isHoriz
|
|
* @type boolean
|
|
*/
|
|
this.isHoriz = minSlider.thumb._isHoriz;
|
|
|
|
//FIXME: this is horrible
|
|
minThumbOnMouseDown = this.minSlider.thumb.onMouseDown;
|
|
maxThumbOnMouseDown = this.maxSlider.thumb.onMouseDown;
|
|
this.minSlider.thumb.onMouseDown = function() {
|
|
self.activeSlider = self.minSlider;
|
|
minThumbOnMouseDown.apply(this,arguments);
|
|
};
|
|
this.maxSlider.thumb.onMouseDown = function () {
|
|
self.activeSlider = self.maxSlider;
|
|
maxThumbOnMouseDown.apply(this,arguments);
|
|
};
|
|
|
|
this.minSlider.thumb.onAvailable = function () {
|
|
minSlider.setStartSliderState();
|
|
ready.min = true;
|
|
if (ready.max) {
|
|
self.fireEvent('ready',self);
|
|
}
|
|
};
|
|
this.maxSlider.thumb.onAvailable = function () {
|
|
maxSlider.setStartSliderState();
|
|
ready.max = true;
|
|
if (ready.min) {
|
|
self.fireEvent('ready',self);
|
|
}
|
|
};
|
|
|
|
// dispatch mousedowns to the active slider
|
|
minSlider.onMouseDown =
|
|
maxSlider.onMouseDown = function(e) {
|
|
return this.backgroundEnabled && self._handleMouseDown(e);
|
|
};
|
|
|
|
// Fix the drag behavior so that only the active slider
|
|
// follows the drag
|
|
minSlider.onDrag =
|
|
maxSlider.onDrag = function(e) {
|
|
self._handleDrag(e);
|
|
};
|
|
|
|
// Likely only the minSlider's onMouseUp will be executed, but both are
|
|
// overridden just to be safe
|
|
minSlider.onMouseUp =
|
|
maxSlider.onMouseUp = function (e) {
|
|
self._handleMouseUp(e);
|
|
};
|
|
|
|
// Replace the _bindKeyEvents for the minSlider and remove that for the
|
|
// maxSlider since they share the same bg element.
|
|
minSlider._bindKeyEvents = function () {
|
|
self._bindKeyEvents(this);
|
|
};
|
|
maxSlider._bindKeyEvents = function () {};
|
|
|
|
// The core events for each slider are handled so we can expose a single
|
|
// event for when the event happens on either slider
|
|
minSlider.subscribe("change", this._handleMinChange, minSlider, this);
|
|
minSlider.subscribe("slideStart", this._handleSlideStart, minSlider, this);
|
|
minSlider.subscribe("slideEnd", this._handleSlideEnd, minSlider, this);
|
|
|
|
maxSlider.subscribe("change", this._handleMaxChange, maxSlider, this);
|
|
maxSlider.subscribe("slideStart", this._handleSlideStart, maxSlider, this);
|
|
maxSlider.subscribe("slideEnd", this._handleSlideEnd, maxSlider, this);
|
|
|
|
/**
|
|
* Event that fires when the slider is finished setting up
|
|
* @event ready
|
|
* @param {DualSlider} dualslider the DualSlider instance
|
|
*/
|
|
this.createEvent("ready", this);
|
|
|
|
/**
|
|
* Event that fires when either the min or max value changes
|
|
* @event change
|
|
* @param {DualSlider} dualslider the DualSlider instance
|
|
*/
|
|
this.createEvent("change", this);
|
|
|
|
/**
|
|
* Event that fires when one of the thumbs begins to move
|
|
* @event slideStart
|
|
* @param {Slider} activeSlider the moving slider
|
|
*/
|
|
this.createEvent("slideStart", this);
|
|
|
|
/**
|
|
* Event that fires when one of the thumbs finishes moving
|
|
* @event slideEnd
|
|
* @param {Slider} activeSlider the moving slider
|
|
*/
|
|
this.createEvent("slideEnd", this);
|
|
|
|
// Validate initial values
|
|
initVals = YAHOO.lang.isArray(initVals) ? initVals : [0,range];
|
|
initVals[0] = Math.min(Math.max(parseInt(initVals[0],10)|0,0),range);
|
|
initVals[1] = Math.max(Math.min(parseInt(initVals[1],10)|0,range),0);
|
|
// Swap initVals if min > max
|
|
if (initVals[0] > initVals[1]) {
|
|
initVals.splice(0,2,initVals[1],initVals[0]);
|
|
}
|
|
this.minVal = initVals[0];
|
|
this.maxVal = initVals[1];
|
|
|
|
// Set values so initial assignment when the slider thumbs are ready will
|
|
// use these values
|
|
this.minSlider.setValue(this.minVal,true,true,true);
|
|
this.maxSlider.setValue(this.maxVal,true,true,true);
|
|
|
|
}
|
|
|
|
DualSlider.prototype = {
|
|
|
|
/**
|
|
* The current value of the min thumb. <strong>read only</strong>.
|
|
* @property minVal
|
|
* @type int
|
|
*/
|
|
minVal : -1,
|
|
|
|
/**
|
|
* The current value of the max thumb. <strong>read only</strong>.
|
|
* @property maxVal
|
|
* @type int
|
|
*/
|
|
maxVal : -1,
|
|
|
|
/**
|
|
* Pixel distance to maintain between thumbs.
|
|
* @property minRange
|
|
* @type int
|
|
* @default 0
|
|
*/
|
|
minRange : 0,
|
|
|
|
/**
|
|
* Executed when one of the sliders fires the slideStart event
|
|
* @method _handleSlideStart
|
|
* @private
|
|
*/
|
|
_handleSlideStart: function(data, slider) {
|
|
this.fireEvent("slideStart", slider);
|
|
},
|
|
|
|
/**
|
|
* Executed when one of the sliders fires the slideEnd event
|
|
* @method _handleSlideEnd
|
|
* @private
|
|
*/
|
|
_handleSlideEnd: function(data, slider) {
|
|
this.fireEvent("slideEnd", slider);
|
|
},
|
|
|
|
/**
|
|
* Overrides the onDrag method for both sliders
|
|
* @method _handleDrag
|
|
* @private
|
|
*/
|
|
_handleDrag: function(e) {
|
|
YW.Slider.prototype.onDrag.call(this.activeSlider, e);
|
|
},
|
|
|
|
/**
|
|
* Executed when the min slider fires the change event
|
|
* @method _handleMinChange
|
|
* @private
|
|
*/
|
|
_handleMinChange: function() {
|
|
this.activeSlider = this.minSlider;
|
|
this.updateValue();
|
|
},
|
|
|
|
/**
|
|
* Executed when the max slider fires the change event
|
|
* @method _handleMaxChange
|
|
* @private
|
|
*/
|
|
_handleMaxChange: function() {
|
|
this.activeSlider = this.maxSlider;
|
|
this.updateValue();
|
|
},
|
|
|
|
/**
|
|
* Set up the listeners for the keydown and keypress events.
|
|
*
|
|
* @method _bindKeyEvents
|
|
* @protected
|
|
*/
|
|
_bindKeyEvents : function (slider) {
|
|
Event.on(slider.id,'keydown', this._handleKeyDown, this,true);
|
|
Event.on(slider.id,'keypress',this._handleKeyPress,this,true);
|
|
},
|
|
|
|
/**
|
|
* Delegate event handling to the active Slider. See Slider.handleKeyDown.
|
|
*
|
|
* @method _handleKeyDown
|
|
* @param e {Event} the mousedown DOM event
|
|
* @protected
|
|
*/
|
|
_handleKeyDown : function (e) {
|
|
this.activeSlider.handleKeyDown.apply(this.activeSlider,arguments);
|
|
},
|
|
|
|
/**
|
|
* Delegate event handling to the active Slider. See Slider.handleKeyPress.
|
|
*
|
|
* @method _handleKeyPress
|
|
* @param e {Event} the mousedown DOM event
|
|
* @protected
|
|
*/
|
|
_handleKeyPress : function (e) {
|
|
this.activeSlider.handleKeyPress.apply(this.activeSlider,arguments);
|
|
},
|
|
|
|
/**
|
|
* Sets the min and max thumbs to new values.
|
|
* @method setValues
|
|
* @param min {int} Pixel offset to assign to the min thumb
|
|
* @param max {int} Pixel offset to assign to the max thumb
|
|
* @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
|
|
* Default false
|
|
* @param force {boolean} (optional) ignore the locked setting and set
|
|
* value anyway. Default false
|
|
* @param silent {boolean} (optional) Set to true to skip firing change
|
|
* events. Default false
|
|
*/
|
|
setValues : function (min, max, skipAnim, force, silent) {
|
|
var mins = this.minSlider,
|
|
maxs = this.maxSlider,
|
|
mint = mins.thumb,
|
|
maxt = maxs.thumb,
|
|
self = this,
|
|
done = { min : false, max : false };
|
|
|
|
// Clear constraints to prevent animated thumbs from prematurely
|
|
// stopping when hitting a constraint that's moving with the other
|
|
// thumb.
|
|
if (mint._isHoriz) {
|
|
mint.setXConstraint(mint.leftConstraint,maxt.rightConstraint,mint.tickSize);
|
|
maxt.setXConstraint(mint.leftConstraint,maxt.rightConstraint,maxt.tickSize);
|
|
} else {
|
|
mint.setYConstraint(mint.topConstraint,maxt.bottomConstraint,mint.tickSize);
|
|
maxt.setYConstraint(mint.topConstraint,maxt.bottomConstraint,maxt.tickSize);
|
|
}
|
|
|
|
// Set up one-time slideEnd callbacks to call updateValue when both
|
|
// thumbs have been set
|
|
this._oneTimeCallback(mins,'slideEnd',function () {
|
|
done.min = true;
|
|
if (done.max) {
|
|
self.updateValue(silent);
|
|
// Clean the slider's slideEnd events on a timeout since this
|
|
// will be executed from inside the event's fire
|
|
setTimeout(function () {
|
|
self._cleanEvent(mins,'slideEnd');
|
|
self._cleanEvent(maxs,'slideEnd');
|
|
},0);
|
|
}
|
|
});
|
|
|
|
this._oneTimeCallback(maxs,'slideEnd',function () {
|
|
done.max = true;
|
|
if (done.min) {
|
|
self.updateValue(silent);
|
|
// Clean both sliders' slideEnd events on a timeout since this
|
|
// will be executed from inside one of the event's fire
|
|
setTimeout(function () {
|
|
self._cleanEvent(mins,'slideEnd');
|
|
self._cleanEvent(maxs,'slideEnd');
|
|
},0);
|
|
}
|
|
});
|
|
|
|
// Must emit Slider slideEnd event to propagate to updateValue
|
|
mins.setValue(min,skipAnim,force,false);
|
|
maxs.setValue(max,skipAnim,force,false);
|
|
},
|
|
|
|
/**
|
|
* Set the min thumb position to a new value.
|
|
* @method setMinValue
|
|
* @param min {int} Pixel offset for min thumb
|
|
* @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
|
|
* Default false
|
|
* @param force {boolean} (optional) ignore the locked setting and set
|
|
* value anyway. Default false
|
|
* @param silent {boolean} (optional) Set to true to skip firing change
|
|
* events. Default false
|
|
*/
|
|
setMinValue : function (min, skipAnim, force, silent) {
|
|
var mins = this.minSlider,
|
|
self = this;
|
|
|
|
this.activeSlider = mins;
|
|
|
|
// Use a one-time event callback to delay the updateValue call
|
|
// until after the slide operation is done
|
|
self = this;
|
|
this._oneTimeCallback(mins,'slideEnd',function () {
|
|
self.updateValue(silent);
|
|
// Clean the slideEnd event on a timeout since this
|
|
// will be executed from inside the event's fire
|
|
setTimeout(function () { self._cleanEvent(mins,'slideEnd'); }, 0);
|
|
});
|
|
|
|
mins.setValue(min, skipAnim, force);
|
|
},
|
|
|
|
/**
|
|
* Set the max thumb position to a new value.
|
|
* @method setMaxValue
|
|
* @param max {int} Pixel offset for max thumb
|
|
* @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
|
|
* Default false
|
|
* @param force {boolean} (optional) ignore the locked setting and set
|
|
* value anyway. Default false
|
|
* @param silent {boolean} (optional) Set to true to skip firing change
|
|
* events. Default false
|
|
*/
|
|
setMaxValue : function (max, skipAnim, force, silent) {
|
|
var maxs = this.maxSlider,
|
|
self = this;
|
|
|
|
this.activeSlider = maxs;
|
|
|
|
// Use a one-time event callback to delay the updateValue call
|
|
// until after the slide operation is done
|
|
this._oneTimeCallback(maxs,'slideEnd',function () {
|
|
self.updateValue(silent);
|
|
// Clean the slideEnd event on a timeout since this
|
|
// will be executed from inside the event's fire
|
|
setTimeout(function () { self._cleanEvent(maxs,'slideEnd'); }, 0);
|
|
});
|
|
|
|
maxs.setValue(max, skipAnim, force);
|
|
},
|
|
|
|
/**
|
|
* Executed when one of the sliders is moved
|
|
* @method updateValue
|
|
* @param silent {boolean} (optional) Set to true to skip firing change
|
|
* events. Default false
|
|
* @private
|
|
*/
|
|
updateValue: function(silent) {
|
|
var min = this.minSlider.getValue(),
|
|
max = this.maxSlider.getValue(),
|
|
changed = false,
|
|
mint,maxt,dim,minConstraint,maxConstraint,thumbInnerWidth;
|
|
|
|
if (min != this.minVal || max != this.maxVal) {
|
|
changed = true;
|
|
|
|
mint = this.minSlider.thumb;
|
|
maxt = this.maxSlider.thumb;
|
|
dim = this.isHoriz ? 'x' : 'y';
|
|
|
|
thumbInnerWidth = this.minSlider.thumbCenterPoint[dim] +
|
|
this.maxSlider.thumbCenterPoint[dim];
|
|
|
|
// Establish barriers within the respective other thumb's edge, less
|
|
// the minRange. Limit to the Slider's range in the case of
|
|
// negative minRanges.
|
|
minConstraint = Math.max(max-thumbInnerWidth-this.minRange,0);
|
|
maxConstraint = Math.min(-min-thumbInnerWidth-this.minRange,0);
|
|
|
|
if (this.isHoriz) {
|
|
minConstraint = Math.min(minConstraint,maxt.rightConstraint);
|
|
|
|
mint.setXConstraint(mint.leftConstraint,minConstraint, mint.tickSize);
|
|
|
|
maxt.setXConstraint(maxConstraint,maxt.rightConstraint, maxt.tickSize);
|
|
} else {
|
|
minConstraint = Math.min(minConstraint,maxt.bottomConstraint);
|
|
mint.setYConstraint(mint.leftConstraint,minConstraint, mint.tickSize);
|
|
|
|
maxt.setYConstraint(maxConstraint,maxt.bottomConstraint, maxt.tickSize);
|
|
}
|
|
}
|
|
|
|
this.minVal = min;
|
|
this.maxVal = max;
|
|
|
|
if (changed && !silent) {
|
|
this.fireEvent("change", this);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A background click will move the slider thumb nearest to the click.
|
|
* Override if you need different behavior.
|
|
* @method selectActiveSlider
|
|
* @param e {Event} the mousedown event
|
|
* @private
|
|
*/
|
|
selectActiveSlider: function(e) {
|
|
var min = this.minSlider,
|
|
max = this.maxSlider,
|
|
minLocked = min.isLocked() || !min.backgroundEnabled,
|
|
maxLocked = max.isLocked() || !min.backgroundEnabled,
|
|
Ev = YAHOO.util.Event,
|
|
d;
|
|
|
|
if (minLocked || maxLocked) {
|
|
this.activeSlider = minLocked ? max : min;
|
|
} else {
|
|
if (this.isHoriz) {
|
|
d = Ev.getPageX(e)-min.thumb.initPageX-min.thumbCenterPoint.x;
|
|
} else {
|
|
d = Ev.getPageY(e)-min.thumb.initPageY-min.thumbCenterPoint.y;
|
|
}
|
|
|
|
this.activeSlider = d*2 > max.getValue()+min.getValue() ? max : min;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Delegates the onMouseDown to the appropriate Slider
|
|
*
|
|
* @method _handleMouseDown
|
|
* @param e {Event} mouseup event
|
|
* @protected
|
|
*/
|
|
_handleMouseDown: function(e) {
|
|
if (!e._handled && !this.minSlider._sliding && !this.maxSlider._sliding) {
|
|
e._handled = true;
|
|
this.selectActiveSlider(e);
|
|
return YW.Slider.prototype.onMouseDown.call(this.activeSlider, e);
|
|
} else {
|
|
return false;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Delegates the onMouseUp to the active Slider
|
|
*
|
|
* @method _handleMouseUp
|
|
* @param e {Event} mouseup event
|
|
* @protected
|
|
*/
|
|
_handleMouseUp : function (e) {
|
|
YW.Slider.prototype.onMouseUp.apply(
|
|
this.activeSlider, arguments);
|
|
},
|
|
|
|
/**
|
|
* Schedule an event callback that will execute once, then unsubscribe
|
|
* itself.
|
|
* @method _oneTimeCallback
|
|
* @param o {EventProvider} Object to attach the event to
|
|
* @param evt {string} Name of the event
|
|
* @param fn {Function} function to execute once
|
|
* @private
|
|
*/
|
|
_oneTimeCallback : function (o,evt,fn) {
|
|
var sub = function () {
|
|
// Unsubscribe myself
|
|
o.unsubscribe(evt, sub);
|
|
// Pass the event handler arguments to the one time callback
|
|
fn.apply({},arguments);
|
|
};
|
|
o.subscribe(evt,sub);
|
|
},
|
|
|
|
/**
|
|
* Clean up the slideEnd event subscribers array, since each one-time
|
|
* callback will be replaced in the event's subscribers property with
|
|
* null. This will cause memory bloat and loss of performance.
|
|
* @method _cleanEvent
|
|
* @param o {EventProvider} object housing the CustomEvent
|
|
* @param evt {string} name of the CustomEvent
|
|
* @private
|
|
*/
|
|
_cleanEvent : function (o,evt) {
|
|
var ce,i,len,j,subs,newSubs;
|
|
|
|
if (o.__yui_events && o.events[evt]) {
|
|
for (i = o.__yui_events.length; i >= 0; --i) {
|
|
if (o.__yui_events[i].type === evt) {
|
|
ce = o.__yui_events[i];
|
|
break;
|
|
}
|
|
}
|
|
if (ce) {
|
|
subs = ce.subscribers;
|
|
newSubs = [];
|
|
j = 0;
|
|
for (i = 0, len = subs.length; i < len; ++i) {
|
|
if (subs[i]) {
|
|
newSubs[j++] = subs[i];
|
|
}
|
|
}
|
|
ce.subscribers = newSubs;
|
|
}
|
|
}
|
|
}
|
|
|
|
};
|
|
|
|
YAHOO.lang.augmentProto(DualSlider, YAHOO.util.EventProvider);
|
|
|
|
|
|
/**
|
|
* Factory method for creating a horizontal dual-thumb slider
|
|
* @for YAHOO.widget.Slider
|
|
* @method YAHOO.widget.Slider.getHorizDualSlider
|
|
* @static
|
|
* @param {String} bg the id of the slider's background element
|
|
* @param {String} minthumb the id of the min thumb
|
|
* @param {String} maxthumb the id of the thumb thumb
|
|
* @param {int} range the number of pixels the thumbs can move within
|
|
* @param {int} iTickSize (optional) the element should move this many pixels
|
|
* at a time
|
|
* @param {Array} initVals (optional) [min,max] Initial thumb placement
|
|
* @return {DualSlider} a horizontal dual-thumb slider control
|
|
*/
|
|
YW.Slider.getHorizDualSlider =
|
|
function (bg, minthumb, maxthumb, range, iTickSize, initVals) {
|
|
var mint = new YW.SliderThumb(minthumb, bg, 0, range, 0, 0, iTickSize),
|
|
maxt = new YW.SliderThumb(maxthumb, bg, 0, range, 0, 0, iTickSize);
|
|
|
|
return new DualSlider(
|
|
new YW.Slider(bg, bg, mint, "horiz"),
|
|
new YW.Slider(bg, bg, maxt, "horiz"),
|
|
range, initVals);
|
|
};
|
|
|
|
/**
|
|
* Factory method for creating a vertical dual-thumb slider.
|
|
* @for YAHOO.widget.Slider
|
|
* @method YAHOO.widget.Slider.getVertDualSlider
|
|
* @static
|
|
* @param {String} bg the id of the slider's background element
|
|
* @param {String} minthumb the id of the min thumb
|
|
* @param {String} maxthumb the id of the thumb thumb
|
|
* @param {int} range the number of pixels the thumbs can move within
|
|
* @param {int} iTickSize (optional) the element should move this many pixels
|
|
* at a time
|
|
* @param {Array} initVals (optional) [min,max] Initial thumb placement
|
|
* @return {DualSlider} a vertical dual-thumb slider control
|
|
*/
|
|
YW.Slider.getVertDualSlider =
|
|
function (bg, minthumb, maxthumb, range, iTickSize, initVals) {
|
|
var mint = new YW.SliderThumb(minthumb, bg, 0, 0, 0, range, iTickSize),
|
|
maxt = new YW.SliderThumb(maxthumb, bg, 0, 0, 0, range, iTickSize);
|
|
|
|
return new YW.DualSlider(
|
|
new YW.Slider(bg, bg, mint, "vert"),
|
|
new YW.Slider(bg, bg, maxt, "vert"),
|
|
range, initVals);
|
|
};
|
|
|
|
YAHOO.widget.DualSlider = DualSlider;
|
|
|
|
})();
|
|
YAHOO.register("slider", YAHOO.widget.Slider, {version: "2.9.0", build: "2800"});
|
|
|
|
}, '2.9.0' ,{"requires": ["yui2-yahoo", "yui2-dom", "yui2-skin-sam-slider", "yui2-event", "yui2-dragdrop"], "optional": ["yui2-animation"]});
|
|
|