Proyectos de Subversion Moodle

Rev

| Ultima modificación | Ver Log |

Rev Autor Línea Nro. Línea
1 efrain 1
YUI.add('yui2-slider', function(Y) {
2
    var YAHOO    = Y.YUI2;
3
    /*
4
Copyright (c) 2011, Yahoo! Inc. All rights reserved.
5
Code licensed under the BSD License:
6
http://developer.yahoo.com/yui/license.html
7
version: 2.9.0
8
*/
9
/**
10
 * The Slider component is a UI control that enables the user to adjust
11
 * values in a finite range along one or two axes. Typically, the Slider
12
 * control is used in a web application as a rich, visual replacement
13
 * for an input box that takes a number as input. The Slider control can
14
 * also easily accommodate a second dimension, providing x,y output for
15
 * a selection point chosen from a rectangular region.
16
 *
17
 * @module    slider
18
 * @title     Slider Widget
19
 * @namespace YAHOO.widget
20
 * @requires  yahoo,dom,dragdrop,event
21
 * @optional  animation
22
 */
23
 (function () {
24
 
25
var getXY = YAHOO.util.Dom.getXY,
26
    Event = YAHOO.util.Event,
27
    _AS   = Array.prototype.slice;
28
 
29
/**
30
 * A DragDrop implementation that can be used as a background for a
31
 * slider.  It takes a reference to the thumb instance
32
 * so it can delegate some of the events to it.  The goal is to make the
33
 * thumb jump to the location on the background when the background is
34
 * clicked.
35
 *
36
 * @class Slider
37
 * @extends YAHOO.util.DragDrop
38
 * @uses YAHOO.util.EventProvider
39
 * @constructor
40
 * @param {String}      id     The id of the element linked to this instance
41
 * @param {String}      sGroup The group of related DragDrop items
42
 * @param {SliderThumb} oThumb The thumb for this slider
43
 * @param {String}      sType  The type of slider (horiz, vert, region)
44
 */
45
function Slider(sElementId, sGroup, oThumb, sType) {
46
 
47
    Slider.ANIM_AVAIL = (!YAHOO.lang.isUndefined(YAHOO.util.Anim));
48
 
49
    if (sElementId) {
50
        this.init(sElementId, sGroup, true);
51
        this.initSlider(sType);
52
        this.initThumb(oThumb);
53
    }
54
}
55
 
56
YAHOO.lang.augmentObject(Slider,{
57
    /**
58
     * Factory method for creating a horizontal slider
59
     * @method YAHOO.widget.Slider.getHorizSlider
60
     * @static
61
     * @param {String} sBGElId the id of the slider's background element
62
     * @param {String} sHandleElId the id of the thumb element
63
     * @param {int} iLeft the number of pixels the element can move left
64
     * @param {int} iRight the number of pixels the element can move right
65
     * @param {int} iTickSize optional parameter for specifying that the element
66
     * should move a certain number pixels at a time.
67
     * @return {Slider} a horizontal slider control
68
     */
69
    getHorizSlider :
70
        function (sBGElId, sHandleElId, iLeft, iRight, iTickSize) {
71
            return new Slider(sBGElId, sBGElId,
72
                new YAHOO.widget.SliderThumb(sHandleElId, sBGElId,
73
                                   iLeft, iRight, 0, 0, iTickSize), "horiz");
74
    },
75
 
76
    /**
77
     * Factory method for creating a vertical slider
78
     * @method YAHOO.widget.Slider.getVertSlider
79
     * @static
80
     * @param {String} sBGElId the id of the slider's background element
81
     * @param {String} sHandleElId the id of the thumb element
82
     * @param {int} iUp the number of pixels the element can move up
83
     * @param {int} iDown the number of pixels the element can move down
84
     * @param {int} iTickSize optional parameter for specifying that the element
85
     * should move a certain number pixels at a time.
86
     * @return {Slider} a vertical slider control
87
     */
88
    getVertSlider :
89
        function (sBGElId, sHandleElId, iUp, iDown, iTickSize) {
90
            return new Slider(sBGElId, sBGElId,
91
                new YAHOO.widget.SliderThumb(sHandleElId, sBGElId, 0, 0,
92
                                   iUp, iDown, iTickSize), "vert");
93
    },
94
 
95
    /**
96
     * Factory method for creating a slider region like the one in the color
97
     * picker example
98
     * @method YAHOO.widget.Slider.getSliderRegion
99
     * @static
100
     * @param {String} sBGElId the id of the slider's background element
101
     * @param {String} sHandleElId the id of the thumb element
102
     * @param {int} iLeft the number of pixels the element can move left
103
     * @param {int} iRight the number of pixels the element can move right
104
     * @param {int} iUp the number of pixels the element can move up
105
     * @param {int} iDown the number of pixels the element can move down
106
     * @param {int} iTickSize optional parameter for specifying that the element
107
     * should move a certain number pixels at a time.
108
     * @return {Slider} a slider region control
109
     */
110
    getSliderRegion :
111
        function (sBGElId, sHandleElId, iLeft, iRight, iUp, iDown, iTickSize) {
112
            return new Slider(sBGElId, sBGElId,
113
                new YAHOO.widget.SliderThumb(sHandleElId, sBGElId, iLeft, iRight,
114
                                   iUp, iDown, iTickSize), "region");
115
    },
116
 
117
    /**
118
     * Constant for valueChangeSource, indicating that the user clicked or
119
     * dragged the slider to change the value.
120
     * @property Slider.SOURCE_UI_EVENT
121
     * @final
122
     * @static
123
     * @default 1
124
     */
125
    SOURCE_UI_EVENT : 1,
126
 
127
    /**
128
     * Constant for valueChangeSource, indicating that the value was altered
129
     * by a programmatic call to setValue/setRegionValue.
130
     * @property Slider.SOURCE_SET_VALUE
131
     * @final
132
     * @static
133
     * @default 2
134
     */
135
    SOURCE_SET_VALUE : 2,
136
 
137
    /**
138
     * Constant for valueChangeSource, indicating that the value was altered
139
     * by hitting any of the supported keyboard characters.
140
     * @property Slider.SOURCE_KEY_EVENT
141
     * @final
142
     * @static
143
     * @default 2
144
     */
145
    SOURCE_KEY_EVENT : 3,
146
 
147
    /**
148
     * By default, animation is available if the animation utility is detected.
149
     * @property Slider.ANIM_AVAIL
150
     * @static
151
     * @type boolean
152
     */
153
    ANIM_AVAIL : false
154
},true);
155
 
156
YAHOO.extend(Slider, YAHOO.util.DragDrop, {
157
 
158
    /**
159
     * Tracks the state of the mouse button to aid in when events are fired.
160
     *
161
     * @property _mouseDown
162
     * @type boolean
163
     * @default false
164
     * @private
165
     */
166
    _mouseDown : false,
167
 
168
    /**
169
     * Override the default setting of dragOnly to true.
170
     * @property dragOnly
171
     * @type boolean
172
     * @default true
173
     */
174
    dragOnly : true,
175
 
176
    /**
177
     * Initializes the slider.  Executed in the constructor
178
     * @method initSlider
179
     * @param {string} sType the type of slider (horiz, vert, region)
180
     */
181
    initSlider: function(sType) {
182
 
183
        /**
184
         * The type of the slider (horiz, vert, region)
185
         * @property type
186
         * @type string
187
         */
188
        this.type = sType;
189
 
190
        //this.removeInvalidHandleType("A");
191
 
192
        this.logger = new YAHOO.widget.LogWriter(this.toString());
193
 
194
        /**
195
         * Event the fires when the value of the control changes.  If
196
         * the control is animated the event will fire every point
197
         * along the way.
198
         * @event change
199
         * @param {int} newOffset|x the new offset for normal sliders, or the new
200
         *                          x offset for region sliders
201
         * @param {int} y the number of pixels the thumb has moved on the y axis
202
         *                (region sliders only)
203
         */
204
        this.createEvent("change", this);
205
 
206
        /**
207
         * Event that fires at the beginning of a slider thumb move.
208
         * @event slideStart
209
         */
210
        this.createEvent("slideStart", this);
211
 
212
        /**
213
         * Event that fires at the end of a slider thumb move
214
         * @event slideEnd
215
         */
216
        this.createEvent("slideEnd", this);
217
 
218
        /**
219
         * Overrides the isTarget property in YAHOO.util.DragDrop
220
         * @property isTarget
221
         * @private
222
         */
223
        this.isTarget = false;
224
 
225
        /**
226
         * Flag that determines if the thumb will animate when moved
227
         * @property animate
228
         * @type boolean
229
         */
230
        this.animate = Slider.ANIM_AVAIL;
231
 
232
        /**
233
         * Set to false to disable a background click thumb move
234
         * @property backgroundEnabled
235
         * @type boolean
236
         */
237
        this.backgroundEnabled = true;
238
 
239
        /**
240
         * Adjustment factor for tick animation, the more ticks, the
241
         * faster the animation (by default)
242
         * @property tickPause
243
         * @type int
244
         */
245
        this.tickPause = 40;
246
 
247
        /**
248
         * Enables the arrow, home and end keys, defaults to true.
249
         * @property enableKeys
250
         * @type boolean
251
         */
252
        this.enableKeys = true;
253
 
254
        /**
255
         * Specifies the number of pixels the arrow keys will move the slider.
256
         * Default is 20.
257
         * @property keyIncrement
258
         * @type int
259
         */
260
        this.keyIncrement = 20;
261
 
262
        /**
263
         * moveComplete is set to true when the slider has moved to its final
264
         * destination.  For animated slider, this value can be checked in
265
         * the onChange handler to make it possible to execute logic only
266
         * when the move is complete rather than at all points along the way.
267
         * Deprecated because this flag is only useful when the background is
268
         * clicked and the slider is animated.  If the user drags the thumb,
269
         * the flag is updated when the drag is over ... the final onDrag event
270
         * fires before the mouseup the ends the drag, so the implementer will
271
         * never see it.
272
         *
273
         * @property moveComplete
274
         * @type Boolean
275
         * @deprecated use the slideEnd event instead
276
         */
277
        this.moveComplete = true;
278
 
279
        /**
280
         * If animation is configured, specifies the length of the animation
281
         * in seconds.
282
         * @property animationDuration
283
         * @type int
284
         * @default 0.2
285
         */
286
        this.animationDuration = 0.2;
287
 
288
        /**
289
         * Constant for valueChangeSource, indicating that the user clicked or
290
         * dragged the slider to change the value.
291
         * @property SOURCE_UI_EVENT
292
         * @final
293
         * @default 1
294
         * @deprecated use static Slider.SOURCE_UI_EVENT
295
         */
296
        this.SOURCE_UI_EVENT = 1;
297
 
298
        /**
299
         * Constant for valueChangeSource, indicating that the value was altered
300
         * by a programmatic call to setValue/setRegionValue.
301
         * @property SOURCE_SET_VALUE
302
         * @final
303
         * @default 2
304
         * @deprecated use static Slider.SOURCE_SET_VALUE
305
         */
306
        this.SOURCE_SET_VALUE = 2;
307
 
308
        /**
309
         * When the slider value changes, this property is set to identify where
310
         * the update came from.  This will be either 1, meaning the slider was
311
         * clicked or dragged, or 2, meaning that it was set via a setValue() call.
312
         * This can be used within event handlers to apply some of the logic only
313
         * when dealing with one source or another.
314
         * @property valueChangeSource
315
         * @type int
316
         * @since 2.3.0
317
         */
318
        this.valueChangeSource = 0;
319
 
320
        /**
321
         * Indicates whether or not events will be supressed for the current
322
         * slide operation
323
         * @property _silent
324
         * @type boolean
325
         * @private
326
         */
327
        this._silent = false;
328
 
329
        /**
330
         * Saved offset used to protect against NaN problems when slider is
331
         * set to display:none
332
         * @property lastOffset
333
         * @type [int, int]
334
         */
335
        this.lastOffset = [0,0];
336
    },
337
 
338
    /**
339
     * Initializes the slider's thumb. Executed in the constructor.
340
     * @method initThumb
341
     * @param {YAHOO.widget.SliderThumb} t the slider thumb
342
     */
343
    initThumb: function(t) {
344
 
345
        var self = this;
346
 
347
        /**
348
         * A YAHOO.widget.SliderThumb instance that we will use to
349
         * reposition the thumb when the background is clicked
350
         * @property thumb
351
         * @type YAHOO.widget.SliderThumb
352
         */
353
        this.thumb = t;
354
 
355
        t.cacheBetweenDrags = true;
356
 
357
        if (t._isHoriz && t.xTicks && t.xTicks.length) {
358
            this.tickPause = Math.round(360 / t.xTicks.length);
359
        } else if (t.yTicks && t.yTicks.length) {
360
            this.tickPause = Math.round(360 / t.yTicks.length);
361
        }
362
 
363
        this.logger.log("tickPause: " + this.tickPause);
364
 
365
        // delegate thumb methods
366
        t.onAvailable = function() {
367
                return self.setStartSliderState();
368
            };
369
        t.onMouseDown = function () {
370
                self._mouseDown = true;
371
                self.logger.log('thumb mousedown');
372
                return self.focus();
373
            };
374
        t.startDrag = function() {
375
                self.logger.log('thumb startDrag');
376
                self._slideStart();
377
            };
378
        t.onDrag = function() {
379
                self.logger.log('thumb drag');
380
                self.fireEvents(true);
381
            };
382
        t.onMouseUp = function() {
383
                self.thumbMouseUp();
384
            };
385
 
386
    },
387
 
388
    /**
389
     * Executed when the slider element is available
390
     * @method onAvailable
391
     */
392
    onAvailable: function() {
393
        this._bindKeyEvents();
394
    },
395
 
396
    /**
397
     * Sets up the listeners for keydown and key press events.
398
     *
399
     * @method _bindKeyEvents
400
     * @protected
401
     */
402
    _bindKeyEvents : function () {
403
        Event.on(this.id, "keydown",  this.handleKeyDown,  this, true);
404
        Event.on(this.id, "keypress", this.handleKeyPress, this, true);
405
    },
406
 
407
    /**
408
     * Executed when a keypress event happens with the control focused.
409
     * Prevents the default behavior for navigation keys.  The actual
410
     * logic for moving the slider thumb in response to a key event
411
     * happens in handleKeyDown.
412
     * @param {Event} e the keypress event
413
     */
414
    handleKeyPress: function(e) {
415
        if (this.enableKeys) {
416
            var kc = Event.getCharCode(e);
417
 
418
            switch (kc) {
419
                case 0x25: // left
420
                case 0x26: // up
421
                case 0x27: // right
422
                case 0x28: // down
423
                case 0x24: // home
424
                case 0x23: // end
425
                    Event.preventDefault(e);
426
                    break;
427
                default:
428
            }
429
        }
430
    },
431
 
432
    /**
433
     * Executed when a keydown event happens with the control focused.
434
     * Updates the slider value and display when the keypress is an
435
     * arrow key, home, or end as long as enableKeys is set to true.
436
     * @param {Event} e the keydown event
437
     */
438
    handleKeyDown: function(e) {
439
        if (this.enableKeys) {
440
            var kc = Event.getCharCode(e),
441
                t  = this.thumb,
442
                h  = this.getXValue(),
443
                v  = this.getYValue(),
444
                changeValue = true;
445
 
446
            switch (kc) {
447
 
448
                // left
449
                case 0x25: h -= this.keyIncrement; break;
450
 
451
                // up
452
                case 0x26: v -= this.keyIncrement; break;
453
 
454
                // right
455
                case 0x27: h += this.keyIncrement; break;
456
 
457
                // down
458
                case 0x28: v += this.keyIncrement; break;
459
 
460
                // home
461
                case 0x24: h = t.leftConstraint;
462
                           v = t.topConstraint;
463
                           break;
464
 
465
                // end
466
                case 0x23: h = t.rightConstraint;
467
                           v = t.bottomConstraint;
468
                           break;
469
 
470
                default:   changeValue = false;
471
            }
472
 
473
            if (changeValue) {
474
                if (t._isRegion) {
475
                    this._setRegionValue(Slider.SOURCE_KEY_EVENT, h, v, true);
476
                } else {
477
                    this._setValue(Slider.SOURCE_KEY_EVENT,
478
                        (t._isHoriz ? h : v), true);
479
                }
480
                Event.stopEvent(e);
481
            }
482
 
483
        }
484
    },
485
 
486
    /**
487
     * Initialization that sets up the value offsets once the elements are ready
488
     * @method setStartSliderState
489
     */
490
    setStartSliderState: function() {
491
 
492
        this.logger.log("Fixing state");
493
 
494
        this.setThumbCenterPoint();
495
 
496
        /**
497
         * The basline position of the background element, used
498
         * to determine if the background has moved since the last
499
         * operation.
500
         * @property baselinePos
501
         * @type [int, int]
502
         */
503
        this.baselinePos = getXY(this.getEl());
504
 
505
        this.thumb.startOffset = this.thumb.getOffsetFromParent(this.baselinePos);
506
 
507
        if (this.thumb._isRegion) {
508
            if (this.deferredSetRegionValue) {
509
                this._setRegionValue.apply(this, this.deferredSetRegionValue);
510
                this.deferredSetRegionValue = null;
511
            } else {
512
                this.setRegionValue(0, 0, true, true, true);
513
            }
514
        } else {
515
            if (this.deferredSetValue) {
516
                this._setValue.apply(this, this.deferredSetValue);
517
                this.deferredSetValue = null;
518
            } else {
519
                this.setValue(0, true, true, true);
520
            }
521
        }
522
    },
523
 
524
    /**
525
     * When the thumb is available, we cache the centerpoint of the element so
526
     * we can position the element correctly when the background is clicked
527
     * @method setThumbCenterPoint
528
     */
529
    setThumbCenterPoint: function() {
530
 
531
        var el = this.thumb.getEl();
532
 
533
        if (el) {
534
            /**
535
             * The center of the slider element is stored so we can
536
             * place it in the correct position when the background is clicked.
537
             * @property thumbCenterPoint
538
             * @type {"x": int, "y": int}
539
             */
540
            this.thumbCenterPoint = {
541
                    x: parseInt(el.offsetWidth/2, 10),
542
                    y: parseInt(el.offsetHeight/2, 10)
543
            };
544
        }
545
 
546
    },
547
 
548
    /**
549
     * Locks the slider, overrides YAHOO.util.DragDrop
550
     * @method lock
551
     */
552
    lock: function() {
553
        this.logger.log("locking");
554
        this.thumb.lock();
555
        this.locked = true;
556
    },
557
 
558
    /**
559
     * Unlocks the slider, overrides YAHOO.util.DragDrop
560
     * @method unlock
561
     */
562
    unlock: function() {
563
        this.logger.log("unlocking");
564
        this.thumb.unlock();
565
        this.locked = false;
566
    },
567
 
568
    /**
569
     * Handles mouseup event on the thumb
570
     * @method thumbMouseUp
571
     * @private
572
     */
573
    thumbMouseUp: function() {
574
        this._mouseDown = false;
575
        this.logger.log("thumb mouseup");
576
        if (!this.isLocked()) {
577
            this.endMove();
578
        }
579
 
580
    },
581
 
582
    onMouseUp: function() {
583
        this._mouseDown = false;
584
        this.logger.log("background mouseup");
585
        if (this.backgroundEnabled && !this.isLocked()) {
586
            this.endMove();
587
        }
588
    },
589
 
590
    /**
591
     * Returns a reference to this slider's thumb
592
     * @method getThumb
593
     * @return {SliderThumb} this slider's thumb
594
     */
595
    getThumb: function() {
596
        return this.thumb;
597
    },
598
 
599
    /**
600
     * Try to focus the element when clicked so we can add
601
     * accessibility features
602
     * @method focus
603
     * @private
604
     */
605
    focus: function() {
606
        this.logger.log("focus");
607
        this.valueChangeSource = Slider.SOURCE_UI_EVENT;
608
 
609
        // Focus the background element if possible
610
        var el = this.getEl();
611
 
612
        if (el.focus) {
613
            try {
614
                el.focus();
615
            } catch(e) {
616
                // Prevent permission denied unhandled exception in FF that can
617
                // happen when setting focus while another element is handling
618
                // the blur.  @TODO this is still writing to the error log
619
                // (unhandled error) in FF1.5 with strict error checking on.
620
            }
621
        }
622
 
623
        this.verifyOffset();
624
 
625
        return !this.isLocked();
626
    },
627
 
628
    /**
629
     * Event that fires when the value of the slider has changed
630
     * @method onChange
631
     * @param {int} firstOffset the number of pixels the thumb has moved
632
     * from its start position. Normal horizontal and vertical sliders will only
633
     * have the firstOffset.  Regions will have both, the first is the horizontal
634
     * offset, the second the vertical.
635
     * @param {int} secondOffset the y offset for region sliders
636
     * @deprecated use instance.subscribe("change") instead
637
     */
638
    onChange: function (firstOffset, secondOffset) {
639
        /* override me */
640
        this.logger.log("onChange: " + firstOffset + ", " + secondOffset);
641
    },
642
 
643
    /**
644
     * Event that fires when the at the beginning of the slider thumb move
645
     * @method onSlideStart
646
     * @deprecated use instance.subscribe("slideStart") instead
647
     */
648
    onSlideStart: function () {
649
        /* override me */
650
        this.logger.log("onSlideStart");
651
    },
652
 
653
    /**
654
     * Event that fires at the end of a slider thumb move
655
     * @method onSliderEnd
656
     * @deprecated use instance.subscribe("slideEnd") instead
657
     */
658
    onSlideEnd: function () {
659
        /* override me */
660
        this.logger.log("onSlideEnd");
661
    },
662
 
663
    /**
664
     * Returns the slider's thumb offset from the start position
665
     * @method getValue
666
     * @return {int} the current value
667
     */
668
    getValue: function () {
669
        return this.thumb.getValue();
670
    },
671
 
672
    /**
673
     * Returns the slider's thumb X offset from the start position
674
     * @method getXValue
675
     * @return {int} the current horizontal offset
676
     */
677
    getXValue: function () {
678
        return this.thumb.getXValue();
679
    },
680
 
681
    /**
682
     * Returns the slider's thumb Y offset from the start position
683
     * @method getYValue
684
     * @return {int} the current vertical offset
685
     */
686
    getYValue: function () {
687
        return this.thumb.getYValue();
688
    },
689
 
690
    /**
691
     * Provides a way to set the value of the slider in code.
692
     *
693
     * @method setValue
694
     * @param {int} newOffset the number of pixels the thumb should be
695
     * positioned away from the initial start point
696
     * @param {boolean} skipAnim set to true to disable the animation
697
     * for this move action (but not others).
698
     * @param {boolean} force ignore the locked setting and set value anyway
699
     * @param {boolean} silent when true, do not fire events
700
     * @return {boolean} true if the move was performed, false if it failed
701
     */
702
    setValue: function() {
703
        var args = _AS.call(arguments);
704
        args.unshift(Slider.SOURCE_SET_VALUE);
705
        return this._setValue.apply(this,args);
706
    },
707
 
708
    /**
709
     * Worker function to execute the value set operation.  Accepts type of
710
     * set operation in addition to the usual setValue params.
711
     *
712
     * @method _setValue
713
     * @param source {int} what triggered the set (e.g. Slider.SOURCE_SET_VALUE)
714
     * @param {int} newOffset the number of pixels the thumb should be
715
     * positioned away from the initial start point
716
     * @param {boolean} skipAnim set to true to disable the animation
717
     * for this move action (but not others).
718
     * @param {boolean} force ignore the locked setting and set value anyway
719
     * @param {boolean} silent when true, do not fire events
720
     * @return {boolean} true if the move was performed, false if it failed
721
     * @protected
722
     */
723
    _setValue: function(source, newOffset, skipAnim, force, silent) {
724
        var t = this.thumb, newX, newY;
725
 
726
        if (!t.available) {
727
            this.logger.log("defer setValue until after onAvailble");
728
            this.deferredSetValue = arguments;
729
            return false;
730
        }
731
 
732
        if (this.isLocked() && !force) {
733
            this.logger.log("Can't set the value, the control is locked");
734
            return false;
735
        }
736
 
737
        if ( isNaN(newOffset) ) {
738
            this.logger.log("setValue, Illegal argument: " + newOffset);
739
            return false;
740
        }
741
 
742
        if (t._isRegion) {
743
            this.logger.log("Call to setValue for region Slider ignored. Use setRegionValue","warn");
744
            return false;
745
        }
746
 
747
        this.logger.log("setValue " + newOffset);
748
 
749
        this._silent = silent;
750
        this.valueChangeSource = source || Slider.SOURCE_SET_VALUE;
751
 
752
        t.lastOffset = [newOffset, newOffset];
753
        this.verifyOffset();
754
 
755
        this._slideStart();
756
 
757
        if (t._isHoriz) {
758
            newX = t.initPageX + newOffset + this.thumbCenterPoint.x;
759
            this.moveThumb(newX, t.initPageY, skipAnim);
760
        } else {
761
            newY = t.initPageY + newOffset + this.thumbCenterPoint.y;
762
            this.moveThumb(t.initPageX, newY, skipAnim);
763
        }
764
 
765
        return true;
766
    },
767
 
768
    /**
769
     * Provides a way to set the value of the region slider in code.
770
     * @method setRegionValue
771
     * @param {int} newOffset the number of pixels the thumb should be
772
     * positioned away from the initial start point (x axis for region)
773
     * @param {int} newOffset2 the number of pixels the thumb should be
774
     * positioned away from the initial start point (y axis for region)
775
     * @param {boolean} skipAnim set to true to disable the animation
776
     * for this move action (but not others).
777
     * @param {boolean} force ignore the locked setting and set value anyway
778
     * @param {boolean} silent when true, do not fire events
779
     * @return {boolean} true if the move was performed, false if it failed
780
     */
781
    setRegionValue : function () {
782
        var args = _AS.call(arguments);
783
        args.unshift(Slider.SOURCE_SET_VALUE);
784
        return this._setRegionValue.apply(this,args);
785
    },
786
 
787
    /**
788
     * Worker function to execute the value set operation.  Accepts type of
789
     * set operation in addition to the usual setValue params.
790
     *
791
     * @method _setRegionValue
792
     * @param source {int} what triggered the set (e.g. Slider.SOURCE_SET_VALUE)
793
     * @param {int} newOffset the number of pixels the thumb should be
794
     * positioned away from the initial start point (x axis for region)
795
     * @param {int} newOffset2 the number of pixels the thumb should be
796
     * positioned away from the initial start point (y axis for region)
797
     * @param {boolean} skipAnim set to true to disable the animation
798
     * for this move action (but not others).
799
     * @param {boolean} force ignore the locked setting and set value anyway
800
     * @param {boolean} silent when true, do not fire events
801
     * @return {boolean} true if the move was performed, false if it failed
802
     * @protected
803
     */
804
    _setRegionValue: function(source, newOffset, newOffset2, skipAnim, force, silent) {
805
        var t = this.thumb, newX, newY;
806
 
807
        if (!t.available) {
808
            this.logger.log("defer setRegionValue until after onAvailble");
809
            this.deferredSetRegionValue = arguments;
810
            return false;
811
        }
812
 
813
        if (this.isLocked() && !force) {
814
            this.logger.log("Can't set the value, the control is locked");
815
            return false;
816
        }
817
 
818
        if ( isNaN(newOffset) ) {
819
            this.logger.log("setRegionValue, Illegal argument: " + newOffset);
820
            return false;
821
        }
822
 
823
        if (!t._isRegion) {
824
            this.logger.log("Call to setRegionValue for non-region Slider ignored. Use setValue","warn");
825
            return false;
826
        }
827
 
828
        this._silent = silent;
829
 
830
        this.valueChangeSource = source || Slider.SOURCE_SET_VALUE;
831
 
832
        t.lastOffset = [newOffset, newOffset2];
833
        this.verifyOffset();
834
 
835
        this._slideStart();
836
 
837
        newX = t.initPageX + newOffset + this.thumbCenterPoint.x;
838
        newY = t.initPageY + newOffset2 + this.thumbCenterPoint.y;
839
        this.moveThumb(newX, newY, skipAnim);
840
 
841
        return true;
842
    },
843
 
844
    /**
845
     * Checks the background position element position.  If it has moved from the
846
     * baseline position, the constraints for the thumb are reset
847
     * @method verifyOffset
848
     * @return {boolean} True if the offset is the same as the baseline.
849
     */
850
    verifyOffset: function() {
851
 
852
        var xy = getXY(this.getEl()),
853
            t  = this.thumb;
854
 
855
        if (!this.thumbCenterPoint || !this.thumbCenterPoint.x) {
856
            this.setThumbCenterPoint();
857
        }
858
 
859
        if (xy) {
860
 
861
            this.logger.log("newPos: " + xy);
862
 
863
            if (xy[0] != this.baselinePos[0] || xy[1] != this.baselinePos[1]) {
864
                this.logger.log("background moved, resetting constraints");
865
 
866
                // Reset background
867
                this.setInitPosition();
868
                this.baselinePos = xy;
869
 
870
                // Reset thumb
871
                t.initPageX = this.initPageX + t.startOffset[0];
872
                t.initPageY = this.initPageY + t.startOffset[1];
873
                t.deltaSetXY = null;
874
                this.resetThumbConstraints();
875
 
876
                return false;
877
            }
878
        }
879
 
880
        return true;
881
    },
882
 
883
    /**
884
     * Move the associated slider moved to a timeout to try to get around the
885
     * mousedown stealing moz does when I move the slider element between the
886
     * cursor and the background during the mouseup event
887
     * @method moveThumb
888
     * @param {int} x the X coordinate of the click
889
     * @param {int} y the Y coordinate of the click
890
     * @param {boolean} skipAnim don't animate if the move happend onDrag
891
     * @param {boolean} midMove set to true if this is not terminating
892
     * the slider movement
893
     * @private
894
     */
895
    moveThumb: function(x, y, skipAnim, midMove) {
896
 
897
        var t = this.thumb,
898
            self = this,
899
            p,_p,anim;
900
 
901
        if (!t.available) {
902
            this.logger.log("thumb is not available yet, aborting move");
903
            return;
904
        }
905
 
906
        this.logger.log("move thumb, x: "  + x + ", y: " + y);
907
 
908
        t.setDelta(this.thumbCenterPoint.x, this.thumbCenterPoint.y);
909
 
910
        _p = t.getTargetCoord(x, y);
911
        p = [Math.round(_p.x), Math.round(_p.y)];
912
 
913
        if (this.animate && t._graduated && !skipAnim) {
914
            this.logger.log("graduated");
915
            this.lock();
916
 
917
            // cache the current thumb pos
918
            this.curCoord = getXY(this.thumb.getEl());
919
            this.curCoord = [Math.round(this.curCoord[0]), Math.round(this.curCoord[1])];
920
 
921
            setTimeout( function() { self.moveOneTick(p); }, this.tickPause );
922
 
923
        } else if (this.animate && Slider.ANIM_AVAIL && !skipAnim) {
924
            this.logger.log("animating to " + p);
925
 
926
            this.lock();
927
 
928
            anim = new YAHOO.util.Motion(
929
                    t.id, { points: { to: p } },
930
                    this.animationDuration,
931
                    YAHOO.util.Easing.easeOut );
932
 
933
            anim.onComplete.subscribe( function() {
934
                    self.logger.log("Animation completed _mouseDown:" + self._mouseDown);
935
                    self.unlock();
936
                    if (!self._mouseDown) {
937
                        self.endMove();
938
                    }
939
                });
940
            anim.animate();
941
 
942
        } else {
943
            t.setDragElPos(x, y);
944
            if (!midMove && !this._mouseDown) {
945
                this.endMove();
946
            }
947
        }
948
    },
949
 
950
    _slideStart: function() {
951
        if (!this._sliding) {
952
            if (!this._silent) {
953
                this.onSlideStart();
954
                this.fireEvent("slideStart");
955
            }
956
            this._sliding = true;
957
            this.moveComplete = false; // for backward compatibility. Deprecated
958
        }
959
    },
960
 
961
    _slideEnd: function() {
962
        if (this._sliding) {
963
            // Reset state before firing slideEnd
964
            var silent = this._silent;
965
            this._sliding = false;
966
            this.moveComplete = true; // for backward compatibility. Deprecated
967
            this._silent = false;
968
            if (!silent) {
969
                this.onSlideEnd();
970
                this.fireEvent("slideEnd");
971
            }
972
        }
973
    },
974
 
975
    /**
976
     * Move the slider one tick mark towards its final coordinate.  Used
977
     * for the animation when tick marks are defined
978
     * @method moveOneTick
979
     * @param {int[]} the destination coordinate
980
     * @private
981
     */
982
    moveOneTick: function(finalCoord) {
983
 
984
        var t = this.thumb,
985
            self = this,
986
            nextCoord = null,
987
            tmpX, tmpY;
988
 
989
        if (t._isRegion) {
990
            nextCoord = this._getNextX(this.curCoord, finalCoord);
991
            tmpX = (nextCoord !== null) ? nextCoord[0] : this.curCoord[0];
992
            nextCoord = this._getNextY(this.curCoord, finalCoord);
993
            tmpY = (nextCoord !== null) ? nextCoord[1] : this.curCoord[1];
994
 
995
            nextCoord = tmpX !== this.curCoord[0] || tmpY !== this.curCoord[1] ?
996
                [ tmpX, tmpY ] : null;
997
        } else if (t._isHoriz) {
998
            nextCoord = this._getNextX(this.curCoord, finalCoord);
999
        } else {
1000
            nextCoord = this._getNextY(this.curCoord, finalCoord);
1001
        }
1002
 
1003
        this.logger.log("moveOneTick: " +
1004
                " finalCoord: " + finalCoord +
1005
                " this.curCoord: " + this.curCoord +
1006
                " nextCoord: " + nextCoord);
1007
 
1008
        if (nextCoord) {
1009
 
1010
            // cache the position
1011
            this.curCoord = nextCoord;
1012
 
1013
            // move to the next coord
1014
            this.thumb.alignElWithMouse(t.getEl(), nextCoord[0] + this.thumbCenterPoint.x, nextCoord[1] + this.thumbCenterPoint.y);
1015
 
1016
            // check if we are in the final position, if not make a recursive call
1017
            if (!(nextCoord[0] == finalCoord[0] && nextCoord[1] == finalCoord[1])) {
1018
                setTimeout(function() { self.moveOneTick(finalCoord); },
1019
                        this.tickPause);
1020
            } else {
1021
                this.unlock();
1022
                if (!this._mouseDown) {
1023
                    this.endMove();
1024
                }
1025
            }
1026
        } else {
1027
            this.unlock();
1028
            if (!this._mouseDown) {
1029
                this.endMove();
1030
            }
1031
        }
1032
    },
1033
 
1034
    /**
1035
     * Returns the next X tick value based on the current coord and the target coord.
1036
     * @method _getNextX
1037
     * @private
1038
     */
1039
    _getNextX: function(curCoord, finalCoord) {
1040
        this.logger.log("getNextX: " + curCoord + ", " + finalCoord);
1041
        var t = this.thumb,
1042
            thresh,
1043
            tmp = [],
1044
            nextCoord = null;
1045
 
1046
        if (curCoord[0] > finalCoord[0]) {
1047
            thresh = t.tickSize - this.thumbCenterPoint.x;
1048
            tmp = t.getTargetCoord( curCoord[0] - thresh, curCoord[1] );
1049
            nextCoord = [tmp.x, tmp.y];
1050
        } else if (curCoord[0] < finalCoord[0]) {
1051
            thresh = t.tickSize + this.thumbCenterPoint.x;
1052
            tmp = t.getTargetCoord( curCoord[0] + thresh, curCoord[1] );
1053
            nextCoord = [tmp.x, tmp.y];
1054
        } else {
1055
            // equal, do nothing
1056
        }
1057
 
1058
        return nextCoord;
1059
    },
1060
 
1061
    /**
1062
     * Returns the next Y tick value based on the current coord and the target coord.
1063
     * @method _getNextY
1064
     * @private
1065
     */
1066
    _getNextY: function(curCoord, finalCoord) {
1067
        var t = this.thumb,
1068
            thresh,
1069
            tmp = [],
1070
            nextCoord = null;
1071
 
1072
        if (curCoord[1] > finalCoord[1]) {
1073
            thresh = t.tickSize - this.thumbCenterPoint.y;
1074
            tmp = t.getTargetCoord( curCoord[0], curCoord[1] - thresh );
1075
            nextCoord = [tmp.x, tmp.y];
1076
        } else if (curCoord[1] < finalCoord[1]) {
1077
            thresh = t.tickSize + this.thumbCenterPoint.y;
1078
            tmp = t.getTargetCoord( curCoord[0], curCoord[1] + thresh );
1079
            nextCoord = [tmp.x, tmp.y];
1080
        } else {
1081
            // equal, do nothing
1082
        }
1083
 
1084
        return nextCoord;
1085
    },
1086
 
1087
    /**
1088
     * Resets the constraints before moving the thumb.
1089
     * @method b4MouseDown
1090
     * @private
1091
     */
1092
    b4MouseDown: function(e) {
1093
        if (!this.backgroundEnabled) {
1094
            return false;
1095
        }
1096
 
1097
        this.thumb.autoOffset();
1098
        this.baselinePos = [];
1099
    },
1100
 
1101
    /**
1102
     * Handles the mousedown event for the slider background
1103
     * @method onMouseDown
1104
     * @private
1105
     */
1106
    onMouseDown: function(e) {
1107
        if (!this.backgroundEnabled || this.isLocked()) {
1108
            return false;
1109
        }
1110
 
1111
        this._mouseDown = true;
1112
 
1113
        var x = Event.getPageX(e),
1114
            y = Event.getPageY(e);
1115
 
1116
        this.logger.log("bg mousedown: " + x + "," + y);
1117
 
1118
        this.focus();
1119
        this._slideStart();
1120
        this.moveThumb(x, y);
1121
    },
1122
 
1123
    /**
1124
     * Handles the onDrag event for the slider background
1125
     * @method onDrag
1126
     * @private
1127
     */
1128
    onDrag: function(e) {
1129
        this.logger.log("background drag");
1130
        if (this.backgroundEnabled && !this.isLocked()) {
1131
            var x = Event.getPageX(e),
1132
                y = Event.getPageY(e);
1133
            this.moveThumb(x, y, true, true);
1134
            this.fireEvents();
1135
        }
1136
    },
1137
 
1138
    /**
1139
     * Fired when the slider movement ends
1140
     * @method endMove
1141
     * @private
1142
     */
1143
    endMove: function () {
1144
        this.logger.log("endMove");
1145
        this.unlock();
1146
        this.fireEvents();
1147
        this._slideEnd();
1148
    },
1149
 
1150
    /**
1151
     * Resets the X and Y contraints for the thumb.  Used in lieu of the thumb
1152
     * instance's inherited resetConstraints because some logic was not
1153
     * applicable.
1154
     * @method resetThumbConstraints
1155
     * @protected
1156
     */
1157
    resetThumbConstraints: function () {
1158
        var t = this.thumb;
1159
 
1160
        t.setXConstraint(t.leftConstraint, t.rightConstraint, t.xTickSize);
1161
        t.setYConstraint(t.topConstraint, t.bottomConstraint, t.xTickSize);
1162
    },
1163
 
1164
    /**
1165
     * Fires the change event if the value has been changed.  Ignored if we are in
1166
     * the middle of an animation as the event will fire when the animation is
1167
     * complete
1168
     * @method fireEvents
1169
     * @param {boolean} thumbEvent set to true if this event is fired from an event
1170
     *                  that occurred on the thumb.  If it is, the state of the
1171
     *                  thumb dd object should be correct.  Otherwise, the event
1172
     *                  originated on the background, so the thumb state needs to
1173
     *                  be refreshed before proceeding.
1174
     * @private
1175
     */
1176
    fireEvents: function (thumbEvent) {
1177
 
1178
        var t = this.thumb, newX, newY, newVal;
1179
 
1180
        if (!thumbEvent) {
1181
            t.cachePosition();
1182
        }
1183
 
1184
        if (! this.isLocked()) {
1185
            if (t._isRegion) {
1186
                newX = t.getXValue();
1187
                newY = t.getYValue();
1188
 
1189
                if (newX != this.previousX || newY != this.previousY) {
1190
                    if (!this._silent) {
1191
                        this.onChange(newX, newY);
1192
                        this.fireEvent("change", { x: newX, y: newY });
1193
                    }
1194
                }
1195
 
1196
                this.previousX = newX;
1197
                this.previousY = newY;
1198
 
1199
            } else {
1200
                newVal = t.getValue();
1201
                if (newVal != this.previousVal) {
1202
                    this.logger.log("Firing onchange: " + newVal);
1203
                    if (!this._silent) {
1204
                        this.onChange( newVal );
1205
                        this.fireEvent("change", newVal);
1206
                    }
1207
                }
1208
                this.previousVal = newVal;
1209
            }
1210
 
1211
        }
1212
    },
1213
 
1214
    /**
1215
     * Slider toString
1216
     * @method toString
1217
     * @return {string} string representation of the instance
1218
     */
1219
    toString: function () {
1220
        return ("Slider (" + this.type +") " + this.id);
1221
    }
1222
 
1223
});
1224
 
1225
YAHOO.lang.augmentProto(Slider, YAHOO.util.EventProvider);
1226
 
1227
YAHOO.widget.Slider = Slider;
1228
})();
1229
/**
1230
 * A drag and drop implementation to be used as the thumb of a slider.
1231
 * @class SliderThumb
1232
 * @extends YAHOO.util.DD
1233
 * @constructor
1234
 * @param {String} id the id of the slider html element
1235
 * @param {String} sGroup the group of related DragDrop items
1236
 * @param {int} iLeft the number of pixels the element can move left
1237
 * @param {int} iRight the number of pixels the element can move right
1238
 * @param {int} iUp the number of pixels the element can move up
1239
 * @param {int} iDown the number of pixels the element can move down
1240
 * @param {int} iTickSize optional parameter for specifying that the element
1241
 * should move a certain number pixels at a time.
1242
 */
1243
YAHOO.widget.SliderThumb = function(id, sGroup, iLeft, iRight, iUp, iDown, iTickSize) {
1244
 
1245
    if (id) {
1246
        YAHOO.widget.SliderThumb.superclass.constructor.call(this, id, sGroup);
1247
 
1248
        /**
1249
         * The id of the thumbs parent HTML element (the slider background
1250
         * element).
1251
         * @property parentElId
1252
         * @type string
1253
         */
1254
        this.parentElId = sGroup;
1255
    }
1256
 
1257
 
1258
    this.logger = new YAHOO.widget.LogWriter(this.toString());
1259
 
1260
    /**
1261
     * Overrides the isTarget property in YAHOO.util.DragDrop
1262
     * @property isTarget
1263
     * @private
1264
     */
1265
    this.isTarget = false;
1266
 
1267
    /**
1268
     * The tick size for this slider
1269
     * @property tickSize
1270
     * @type int
1271
     * @private
1272
     */
1273
    this.tickSize = iTickSize;
1274
 
1275
    /**
1276
     * Informs the drag and drop util that the offsets should remain when
1277
     * resetting the constraints.  This preserves the slider value when
1278
     * the constraints are reset
1279
     * @property maintainOffset
1280
     * @type boolean
1281
     * @private
1282
     */
1283
    this.maintainOffset = true;
1284
 
1285
    this.initSlider(iLeft, iRight, iUp, iDown, iTickSize);
1286
 
1287
    /**
1288
     * Turns off the autoscroll feature in drag and drop
1289
     * @property scroll
1290
     * @private
1291
     */
1292
    this.scroll = false;
1293
 
1294
};
1295
 
1296
YAHOO.extend(YAHOO.widget.SliderThumb, YAHOO.util.DD, {
1297
 
1298
    /**
1299
     * The (X and Y) difference between the thumb location and its parent
1300
     * (the slider background) when the control is instantiated.
1301
     * @property startOffset
1302
     * @type [int, int]
1303
     */
1304
    startOffset: null,
1305
 
1306
    /**
1307
     * Override the default setting of dragOnly to true.
1308
     * @property dragOnly
1309
     * @type boolean
1310
     * @default true
1311
     */
1312
    dragOnly : true,
1313
 
1314
    /**
1315
     * Flag used to figure out if this is a horizontal or vertical slider
1316
     * @property _isHoriz
1317
     * @type boolean
1318
     * @private
1319
     */
1320
    _isHoriz: false,
1321
 
1322
    /**
1323
     * Cache the last value so we can check for change
1324
     * @property _prevVal
1325
     * @type int
1326
     * @private
1327
     */
1328
    _prevVal: 0,
1329
 
1330
    /**
1331
     * The slider is _graduated if there is a tick interval defined
1332
     * @property _graduated
1333
     * @type boolean
1334
     * @private
1335
     */
1336
    _graduated: false,
1337
 
1338
 
1339
    /**
1340
     * Returns the difference between the location of the thumb and its parent.
1341
     * @method getOffsetFromParent
1342
     * @param {[int, int]} parentPos Optionally accepts the position of the parent
1343
     * @type [int, int]
1344
     */
1345
    getOffsetFromParent0: function(parentPos) {
1346
        var myPos = YAHOO.util.Dom.getXY(this.getEl()),
1347
            ppos  = parentPos || YAHOO.util.Dom.getXY(this.parentElId);
1348
 
1349
        return [ (myPos[0] - ppos[0]), (myPos[1] - ppos[1]) ];
1350
    },
1351
 
1352
    getOffsetFromParent: function(parentPos) {
1353
 
1354
        var el = this.getEl(), newOffset,
1355
            myPos,ppos,l,t,deltaX,deltaY,newLeft,newTop;
1356
 
1357
        if (!this.deltaOffset) {
1358
 
1359
            myPos = YAHOO.util.Dom.getXY(el);
1360
            ppos  = parentPos || YAHOO.util.Dom.getXY(this.parentElId);
1361
 
1362
            newOffset = [ (myPos[0] - ppos[0]), (myPos[1] - ppos[1]) ];
1363
 
1364
            l = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
1365
            t = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
1366
 
1367
            deltaX = l - newOffset[0];
1368
            deltaY = t - newOffset[1];
1369
 
1370
            if (isNaN(deltaX) || isNaN(deltaY)) {
1371
                this.logger.log("element does not have a position style def yet");
1372
            } else {
1373
                this.deltaOffset = [deltaX, deltaY];
1374
            }
1375
 
1376
        } else {
1377
            newLeft = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
1378
            newTop  = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
1379
 
1380
            newOffset  = [newLeft + this.deltaOffset[0], newTop + this.deltaOffset[1]];
1381
        }
1382
 
1383
        return newOffset;
1384
    },
1385
 
1386
    /**
1387
     * Set up the slider, must be called in the constructor of all subclasses
1388
     * @method initSlider
1389
     * @param {int} iLeft the number of pixels the element can move left
1390
     * @param {int} iRight the number of pixels the element can move right
1391
     * @param {int} iUp the number of pixels the element can move up
1392
     * @param {int} iDown the number of pixels the element can move down
1393
     * @param {int} iTickSize the width of the tick interval.
1394
     */
1395
    initSlider: function (iLeft, iRight, iUp, iDown, iTickSize) {
1396
        this.initLeft = iLeft;
1397
        this.initRight = iRight;
1398
        this.initUp = iUp;
1399
        this.initDown = iDown;
1400
 
1401
        this.setXConstraint(iLeft, iRight, iTickSize);
1402
        this.setYConstraint(iUp, iDown, iTickSize);
1403
 
1404
        if (iTickSize && iTickSize > 1) {
1405
            this._graduated = true;
1406
        }
1407
 
1408
        this._isHoriz  = (iLeft || iRight);
1409
        this._isVert   = (iUp   || iDown);
1410
        this._isRegion = (this._isHoriz && this._isVert);
1411
 
1412
    },
1413
 
1414
    /**
1415
     * Clear's the slider's ticks
1416
     * @method clearTicks
1417
     */
1418
    clearTicks: function () {
1419
        YAHOO.widget.SliderThumb.superclass.clearTicks.call(this);
1420
        this.tickSize = 0;
1421
        this._graduated = false;
1422
    },
1423
 
1424
 
1425
    /**
1426
     * Gets the current offset from the element's start position in
1427
     * pixels.
1428
     * @method getValue
1429
     * @return {int} the number of pixels (positive or negative) the
1430
     * slider has moved from the start position.
1431
     */
1432
    getValue: function () {
1433
        return (this._isHoriz) ? this.getXValue() : this.getYValue();
1434
    },
1435
 
1436
    /**
1437
     * Gets the current X offset from the element's start position in
1438
     * pixels.
1439
     * @method getXValue
1440
     * @return {int} the number of pixels (positive or negative) the
1441
     * slider has moved horizontally from the start position.
1442
     */
1443
    getXValue: function () {
1444
        if (!this.available) {
1445
            return 0;
1446
        }
1447
        var newOffset = this.getOffsetFromParent();
1448
        if (YAHOO.lang.isNumber(newOffset[0])) {
1449
            this.lastOffset = newOffset;
1450
            return (newOffset[0] - this.startOffset[0]);
1451
        } else {
1452
            this.logger.log("can't get offset, using old value: " +
1453
                this.lastOffset[0]);
1454
            return (this.lastOffset[0] - this.startOffset[0]);
1455
        }
1456
    },
1457
 
1458
    /**
1459
     * Gets the current Y offset from the element's start position in
1460
     * pixels.
1461
     * @method getYValue
1462
     * @return {int} the number of pixels (positive or negative) the
1463
     * slider has moved vertically from the start position.
1464
     */
1465
    getYValue: function () {
1466
        if (!this.available) {
1467
            return 0;
1468
        }
1469
        var newOffset = this.getOffsetFromParent();
1470
        if (YAHOO.lang.isNumber(newOffset[1])) {
1471
            this.lastOffset = newOffset;
1472
            return (newOffset[1] - this.startOffset[1]);
1473
        } else {
1474
            this.logger.log("can't get offset, using old value: " +
1475
                this.lastOffset[1]);
1476
            return (this.lastOffset[1] - this.startOffset[1]);
1477
        }
1478
    },
1479
 
1480
    /**
1481
     * Thumb toString
1482
     * @method toString
1483
     * @return {string} string representation of the instance
1484
     */
1485
    toString: function () {
1486
        return "SliderThumb " + this.id;
1487
    },
1488
 
1489
    /**
1490
     * The onchange event for the handle/thumb is delegated to the YAHOO.widget.Slider
1491
     * instance it belongs to.
1492
     * @method onChange
1493
     * @private
1494
     */
1495
    onChange: function (x, y) {
1496
    }
1497
 
1498
});
1499
/**
1500
 * A slider with two thumbs, one that represents the min value and
1501
 * the other the max.  Actually a composition of two sliders, both with
1502
 * the same background.  The constraints for each slider are adjusted
1503
 * dynamically so that the min value of the max slider is equal or greater
1504
 * to the current value of the min slider, and the max value of the min
1505
 * slider is the current value of the max slider.
1506
 * Constructor assumes both thumbs are positioned absolutely at the 0 mark on
1507
 * the background.
1508
 *
1509
 * @namespace YAHOO.widget
1510
 * @class DualSlider
1511
 * @uses YAHOO.util.EventProvider
1512
 * @constructor
1513
 * @param {Slider} minSlider The Slider instance used for the min value thumb
1514
 * @param {Slider} maxSlider The Slider instance used for the max value thumb
1515
 * @param {int}    range The number of pixels the thumbs may move within
1516
 * @param {Array}  initVals (optional) [min,max] Initial thumb placement
1517
 */
1518
(function () {
1519
 
1520
var Event = YAHOO.util.Event,
1521
    YW = YAHOO.widget;
1522
 
1523
function DualSlider(minSlider, maxSlider, range, initVals) {
1524
 
1525
    var self  = this,
1526
        ready = { min : false, max : false },
1527
        minThumbOnMouseDown, maxThumbOnMouseDown;
1528
 
1529
    /**
1530
     * A slider instance that keeps track of the lower value of the range.
1531
     * <strong>read only</strong>
1532
     * @property minSlider
1533
     * @type Slider
1534
     */
1535
    this.minSlider = minSlider;
1536
 
1537
    /**
1538
     * A slider instance that keeps track of the upper value of the range.
1539
     * <strong>read only</strong>
1540
     * @property maxSlider
1541
     * @type Slider
1542
     */
1543
    this.maxSlider = maxSlider;
1544
 
1545
    /**
1546
     * The currently active slider (min or max). <strong>read only</strong>
1547
     * @property activeSlider
1548
     * @type Slider
1549
     */
1550
    this.activeSlider = minSlider;
1551
 
1552
    /**
1553
     * Is the DualSlider oriented horizontally or vertically?
1554
     * <strong>read only</strong>
1555
     * @property isHoriz
1556
     * @type boolean
1557
     */
1558
    this.isHoriz = minSlider.thumb._isHoriz;
1559
 
1560
    //FIXME: this is horrible
1561
    minThumbOnMouseDown = this.minSlider.thumb.onMouseDown;
1562
    maxThumbOnMouseDown = this.maxSlider.thumb.onMouseDown;
1563
    this.minSlider.thumb.onMouseDown = function() {
1564
        self.activeSlider = self.minSlider;
1565
        minThumbOnMouseDown.apply(this,arguments);
1566
    };
1567
    this.maxSlider.thumb.onMouseDown = function () {
1568
        self.activeSlider = self.maxSlider;
1569
        maxThumbOnMouseDown.apply(this,arguments);
1570
    };
1571
 
1572
    this.minSlider.thumb.onAvailable = function () {
1573
        minSlider.setStartSliderState();
1574
        ready.min = true;
1575
        if (ready.max) {
1576
            self.fireEvent('ready',self);
1577
        }
1578
    };
1579
    this.maxSlider.thumb.onAvailable = function () {
1580
        maxSlider.setStartSliderState();
1581
        ready.max = true;
1582
        if (ready.min) {
1583
            self.fireEvent('ready',self);
1584
        }
1585
    };
1586
 
1587
    // dispatch mousedowns to the active slider
1588
    minSlider.onMouseDown =
1589
    maxSlider.onMouseDown = function(e) {
1590
        return this.backgroundEnabled && self._handleMouseDown(e);
1591
    };
1592
 
1593
    // Fix the drag behavior so that only the active slider
1594
    // follows the drag
1595
    minSlider.onDrag =
1596
    maxSlider.onDrag = function(e) {
1597
        self._handleDrag(e);
1598
    };
1599
 
1600
    // Likely only the minSlider's onMouseUp will be executed, but both are
1601
    // overridden just to be safe
1602
    minSlider.onMouseUp =
1603
    maxSlider.onMouseUp = function (e) {
1604
        self._handleMouseUp(e);
1605
    };
1606
 
1607
    // Replace the _bindKeyEvents for the minSlider and remove that for the
1608
    // maxSlider since they share the same bg element.
1609
    minSlider._bindKeyEvents = function () {
1610
        self._bindKeyEvents(this);
1611
    };
1612
    maxSlider._bindKeyEvents = function () {};
1613
 
1614
    // The core events for each slider are handled so we can expose a single
1615
    // event for when the event happens on either slider
1616
    minSlider.subscribe("change", this._handleMinChange, minSlider, this);
1617
    minSlider.subscribe("slideStart", this._handleSlideStart, minSlider, this);
1618
    minSlider.subscribe("slideEnd", this._handleSlideEnd, minSlider, this);
1619
 
1620
    maxSlider.subscribe("change", this._handleMaxChange, maxSlider, this);
1621
    maxSlider.subscribe("slideStart", this._handleSlideStart, maxSlider, this);
1622
    maxSlider.subscribe("slideEnd", this._handleSlideEnd, maxSlider, this);
1623
 
1624
    /**
1625
     * Event that fires when the slider is finished setting up
1626
     * @event ready
1627
     * @param {DualSlider} dualslider the DualSlider instance
1628
     */
1629
    this.createEvent("ready", this);
1630
 
1631
    /**
1632
     * Event that fires when either the min or max value changes
1633
     * @event change
1634
     * @param {DualSlider} dualslider the DualSlider instance
1635
     */
1636
    this.createEvent("change", this);
1637
 
1638
    /**
1639
     * Event that fires when one of the thumbs begins to move
1640
     * @event slideStart
1641
     * @param {Slider} activeSlider the moving slider
1642
     */
1643
    this.createEvent("slideStart", this);
1644
 
1645
    /**
1646
     * Event that fires when one of the thumbs finishes moving
1647
     * @event slideEnd
1648
     * @param {Slider} activeSlider the moving slider
1649
     */
1650
    this.createEvent("slideEnd", this);
1651
 
1652
    // Validate initial values
1653
    initVals = YAHOO.lang.isArray(initVals) ? initVals : [0,range];
1654
    initVals[0] = Math.min(Math.max(parseInt(initVals[0],10)|0,0),range);
1655
    initVals[1] = Math.max(Math.min(parseInt(initVals[1],10)|0,range),0);
1656
    // Swap initVals if min > max
1657
    if (initVals[0] > initVals[1]) {
1658
        initVals.splice(0,2,initVals[1],initVals[0]);
1659
    }
1660
    this.minVal = initVals[0];
1661
    this.maxVal = initVals[1];
1662
 
1663
    // Set values so initial assignment when the slider thumbs are ready will
1664
    // use these values
1665
    this.minSlider.setValue(this.minVal,true,true,true);
1666
    this.maxSlider.setValue(this.maxVal,true,true,true);
1667
 
1668
    YAHOO.log("Setting initial values " + this.minVal + ", " + this.maxVal,"info","DualSlider");
1669
}
1670
 
1671
DualSlider.prototype = {
1672
 
1673
    /**
1674
     * The current value of the min thumb. <strong>read only</strong>.
1675
     * @property minVal
1676
     * @type int
1677
     */
1678
    minVal : -1,
1679
 
1680
    /**
1681
     * The current value of the max thumb. <strong>read only</strong>.
1682
     * @property maxVal
1683
     * @type int
1684
     */
1685
    maxVal : -1,
1686
 
1687
    /**
1688
     * Pixel distance to maintain between thumbs.
1689
     * @property minRange
1690
     * @type int
1691
     * @default 0
1692
     */
1693
    minRange : 0,
1694
 
1695
    /**
1696
     * Executed when one of the sliders fires the slideStart event
1697
     * @method _handleSlideStart
1698
     * @private
1699
     */
1700
    _handleSlideStart: function(data, slider) {
1701
        this.fireEvent("slideStart", slider);
1702
    },
1703
 
1704
    /**
1705
     * Executed when one of the sliders fires the slideEnd event
1706
     * @method _handleSlideEnd
1707
     * @private
1708
     */
1709
    _handleSlideEnd: function(data, slider) {
1710
        this.fireEvent("slideEnd", slider);
1711
    },
1712
 
1713
    /**
1714
     * Overrides the onDrag method for both sliders
1715
     * @method _handleDrag
1716
     * @private
1717
     */
1718
    _handleDrag: function(e) {
1719
        YW.Slider.prototype.onDrag.call(this.activeSlider, e);
1720
    },
1721
 
1722
    /**
1723
     * Executed when the min slider fires the change event
1724
     * @method _handleMinChange
1725
     * @private
1726
     */
1727
    _handleMinChange: function() {
1728
        this.activeSlider = this.minSlider;
1729
        this.updateValue();
1730
    },
1731
 
1732
    /**
1733
     * Executed when the max slider fires the change event
1734
     * @method _handleMaxChange
1735
     * @private
1736
     */
1737
    _handleMaxChange: function() {
1738
        this.activeSlider = this.maxSlider;
1739
        this.updateValue();
1740
    },
1741
 
1742
    /**
1743
     * Set up the listeners for the keydown and keypress events.
1744
     *
1745
     * @method _bindKeyEvents
1746
     * @protected
1747
     */
1748
    _bindKeyEvents : function (slider) {
1749
        Event.on(slider.id,'keydown', this._handleKeyDown, this,true);
1750
        Event.on(slider.id,'keypress',this._handleKeyPress,this,true);
1751
    },
1752
 
1753
    /**
1754
     * Delegate event handling to the active Slider.  See Slider.handleKeyDown.
1755
     *
1756
     * @method _handleKeyDown
1757
     * @param e {Event} the mousedown DOM event
1758
     * @protected
1759
     */
1760
    _handleKeyDown : function (e) {
1761
        this.activeSlider.handleKeyDown.apply(this.activeSlider,arguments);
1762
    },
1763
 
1764
    /**
1765
     * Delegate event handling to the active Slider.  See Slider.handleKeyPress.
1766
     *
1767
     * @method _handleKeyPress
1768
     * @param e {Event} the mousedown DOM event
1769
     * @protected
1770
     */
1771
    _handleKeyPress : function (e) {
1772
        this.activeSlider.handleKeyPress.apply(this.activeSlider,arguments);
1773
    },
1774
 
1775
    /**
1776
     * Sets the min and max thumbs to new values.
1777
     * @method setValues
1778
     * @param min {int} Pixel offset to assign to the min thumb
1779
     * @param max {int} Pixel offset to assign to the max thumb
1780
     * @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
1781
     * Default false
1782
     * @param force {boolean} (optional) ignore the locked setting and set
1783
     * value anyway. Default false
1784
     * @param silent {boolean} (optional) Set to true to skip firing change
1785
     * events.  Default false
1786
     */
1787
    setValues : function (min, max, skipAnim, force, silent) {
1788
        var mins = this.minSlider,
1789
            maxs = this.maxSlider,
1790
            mint = mins.thumb,
1791
            maxt = maxs.thumb,
1792
            self = this,
1793
            done = { min : false, max : false };
1794
 
1795
        // Clear constraints to prevent animated thumbs from prematurely
1796
        // stopping when hitting a constraint that's moving with the other
1797
        // thumb.
1798
        if (mint._isHoriz) {
1799
            mint.setXConstraint(mint.leftConstraint,maxt.rightConstraint,mint.tickSize);
1800
            maxt.setXConstraint(mint.leftConstraint,maxt.rightConstraint,maxt.tickSize);
1801
        } else {
1802
            mint.setYConstraint(mint.topConstraint,maxt.bottomConstraint,mint.tickSize);
1803
            maxt.setYConstraint(mint.topConstraint,maxt.bottomConstraint,maxt.tickSize);
1804
        }
1805
 
1806
        // Set up one-time slideEnd callbacks to call updateValue when both
1807
        // thumbs have been set
1808
        this._oneTimeCallback(mins,'slideEnd',function () {
1809
            done.min = true;
1810
            if (done.max) {
1811
                self.updateValue(silent);
1812
                // Clean the slider's slideEnd events on a timeout since this
1813
                // will be executed from inside the event's fire
1814
                setTimeout(function () {
1815
                    self._cleanEvent(mins,'slideEnd');
1816
                    self._cleanEvent(maxs,'slideEnd');
1817
                },0);
1818
            }
1819
        });
1820
 
1821
        this._oneTimeCallback(maxs,'slideEnd',function () {
1822
            done.max = true;
1823
            if (done.min) {
1824
                self.updateValue(silent);
1825
                // Clean both sliders' slideEnd events on a timeout since this
1826
                // will be executed from inside one of the event's fire
1827
                setTimeout(function () {
1828
                    self._cleanEvent(mins,'slideEnd');
1829
                    self._cleanEvent(maxs,'slideEnd');
1830
                },0);
1831
            }
1832
        });
1833
 
1834
        // Must emit Slider slideEnd event to propagate to updateValue
1835
        mins.setValue(min,skipAnim,force,false);
1836
        maxs.setValue(max,skipAnim,force,false);
1837
    },
1838
 
1839
    /**
1840
     * Set the min thumb position to a new value.
1841
     * @method setMinValue
1842
     * @param min {int} Pixel offset for min thumb
1843
     * @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
1844
     * Default false
1845
     * @param force {boolean} (optional) ignore the locked setting and set
1846
     * value anyway. Default false
1847
     * @param silent {boolean} (optional) Set to true to skip firing change
1848
     * events.  Default false
1849
     */
1850
    setMinValue : function (min, skipAnim, force, silent) {
1851
        var mins = this.minSlider,
1852
            self = this;
1853
 
1854
        this.activeSlider = mins;
1855
 
1856
        // Use a one-time event callback to delay the updateValue call
1857
        // until after the slide operation is done
1858
        self = this;
1859
        this._oneTimeCallback(mins,'slideEnd',function () {
1860
            self.updateValue(silent);
1861
            // Clean the slideEnd event on a timeout since this
1862
            // will be executed from inside the event's fire
1863
            setTimeout(function () { self._cleanEvent(mins,'slideEnd'); }, 0);
1864
        });
1865
 
1866
        mins.setValue(min, skipAnim, force);
1867
    },
1868
 
1869
    /**
1870
     * Set the max thumb position to a new value.
1871
     * @method setMaxValue
1872
     * @param max {int} Pixel offset for max thumb
1873
     * @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
1874
     * Default false
1875
     * @param force {boolean} (optional) ignore the locked setting and set
1876
     * value anyway. Default false
1877
     * @param silent {boolean} (optional) Set to true to skip firing change
1878
     * events.  Default false
1879
     */
1880
    setMaxValue : function (max, skipAnim, force, silent) {
1881
        var maxs = this.maxSlider,
1882
            self = this;
1883
 
1884
        this.activeSlider = maxs;
1885
 
1886
        // Use a one-time event callback to delay the updateValue call
1887
        // until after the slide operation is done
1888
        this._oneTimeCallback(maxs,'slideEnd',function () {
1889
            self.updateValue(silent);
1890
            // Clean the slideEnd event on a timeout since this
1891
            // will be executed from inside the event's fire
1892
            setTimeout(function () { self._cleanEvent(maxs,'slideEnd'); }, 0);
1893
        });
1894
 
1895
        maxs.setValue(max, skipAnim, force);
1896
    },
1897
 
1898
    /**
1899
     * Executed when one of the sliders is moved
1900
     * @method updateValue
1901
     * @param silent {boolean} (optional) Set to true to skip firing change
1902
     * events.  Default false
1903
     * @private
1904
     */
1905
    updateValue: function(silent) {
1906
        var min     = this.minSlider.getValue(),
1907
            max     = this.maxSlider.getValue(),
1908
            changed = false,
1909
            mint,maxt,dim,minConstraint,maxConstraint,thumbInnerWidth;
1910
 
1911
        if (min != this.minVal || max != this.maxVal) {
1912
            changed = true;
1913
 
1914
            mint = this.minSlider.thumb;
1915
            maxt = this.maxSlider.thumb;
1916
            dim  = this.isHoriz ? 'x' : 'y';
1917
 
1918
            thumbInnerWidth = this.minSlider.thumbCenterPoint[dim] +
1919
                              this.maxSlider.thumbCenterPoint[dim];
1920
 
1921
            // Establish barriers within the respective other thumb's edge, less
1922
            // the minRange.  Limit to the Slider's range in the case of
1923
            // negative minRanges.
1924
            minConstraint = Math.max(max-thumbInnerWidth-this.minRange,0);
1925
            maxConstraint = Math.min(-min-thumbInnerWidth-this.minRange,0);
1926
 
1927
            if (this.isHoriz) {
1928
                minConstraint = Math.min(minConstraint,maxt.rightConstraint);
1929
 
1930
                mint.setXConstraint(mint.leftConstraint,minConstraint, mint.tickSize);
1931
 
1932
                maxt.setXConstraint(maxConstraint,maxt.rightConstraint, maxt.tickSize);
1933
            } else {
1934
                minConstraint = Math.min(minConstraint,maxt.bottomConstraint);
1935
                mint.setYConstraint(mint.leftConstraint,minConstraint, mint.tickSize);
1936
 
1937
                maxt.setYConstraint(maxConstraint,maxt.bottomConstraint, maxt.tickSize);
1938
            }
1939
        }
1940
 
1941
        this.minVal = min;
1942
        this.maxVal = max;
1943
 
1944
        if (changed && !silent) {
1945
            this.fireEvent("change", this);
1946
        }
1947
    },
1948
 
1949
    /**
1950
     * A background click will move the slider thumb nearest to the click.
1951
     * Override if you need different behavior.
1952
     * @method selectActiveSlider
1953
     * @param e {Event} the mousedown event
1954
     * @private
1955
     */
1956
    selectActiveSlider: function(e) {
1957
        var min = this.minSlider,
1958
            max = this.maxSlider,
1959
            minLocked = min.isLocked() || !min.backgroundEnabled,
1960
            maxLocked = max.isLocked() || !min.backgroundEnabled,
1961
            Ev  = YAHOO.util.Event,
1962
            d;
1963
 
1964
        if (minLocked || maxLocked) {
1965
            this.activeSlider = minLocked ? max : min;
1966
        } else {
1967
            if (this.isHoriz) {
1968
                d = Ev.getPageX(e)-min.thumb.initPageX-min.thumbCenterPoint.x;
1969
            } else {
1970
                d = Ev.getPageY(e)-min.thumb.initPageY-min.thumbCenterPoint.y;
1971
            }
1972
 
1973
            this.activeSlider = d*2 > max.getValue()+min.getValue() ? max : min;
1974
        }
1975
    },
1976
 
1977
    /**
1978
     * Delegates the onMouseDown to the appropriate Slider
1979
     *
1980
     * @method _handleMouseDown
1981
     * @param e {Event} mouseup event
1982
     * @protected
1983
     */
1984
    _handleMouseDown: function(e) {
1985
        if (!e._handled && !this.minSlider._sliding && !this.maxSlider._sliding) {
1986
            e._handled = true;
1987
            this.selectActiveSlider(e);
1988
            return YW.Slider.prototype.onMouseDown.call(this.activeSlider, e);
1989
        } else {
1990
            return false;
1991
        }
1992
    },
1993
 
1994
    /**
1995
     * Delegates the onMouseUp to the active Slider
1996
     *
1997
     * @method _handleMouseUp
1998
     * @param e {Event} mouseup event
1999
     * @protected
2000
     */
2001
    _handleMouseUp : function (e) {
2002
        YW.Slider.prototype.onMouseUp.apply(
2003
            this.activeSlider, arguments);
2004
    },
2005
 
2006
    /**
2007
     * Schedule an event callback that will execute once, then unsubscribe
2008
     * itself.
2009
     * @method _oneTimeCallback
2010
     * @param o {EventProvider} Object to attach the event to
2011
     * @param evt {string} Name of the event
2012
     * @param fn {Function} function to execute once
2013
     * @private
2014
     */
2015
    _oneTimeCallback : function (o,evt,fn) {
2016
        var sub = function () {
2017
            // Unsubscribe myself
2018
            o.unsubscribe(evt, sub);
2019
            // Pass the event handler arguments to the one time callback
2020
            fn.apply({},arguments);
2021
        };
2022
        o.subscribe(evt,sub);
2023
    },
2024
 
2025
    /**
2026
     * Clean up the slideEnd event subscribers array, since each one-time
2027
     * callback will be replaced in the event's subscribers property with
2028
     * null.  This will cause memory bloat and loss of performance.
2029
     * @method _cleanEvent
2030
     * @param o {EventProvider} object housing the CustomEvent
2031
     * @param evt {string} name of the CustomEvent
2032
     * @private
2033
     */
2034
    _cleanEvent : function (o,evt) {
2035
        var ce,i,len,j,subs,newSubs;
2036
 
2037
        if (o.__yui_events && o.events[evt]) {
2038
            for (i = o.__yui_events.length; i >= 0; --i) {
2039
                if (o.__yui_events[i].type === evt) {
2040
                    ce = o.__yui_events[i];
2041
                    break;
2042
                }
2043
            }
2044
            if (ce) {
2045
                subs    = ce.subscribers;
2046
                newSubs = [];
2047
                j = 0;
2048
                for (i = 0, len = subs.length; i < len; ++i) {
2049
                    if (subs[i]) {
2050
                        newSubs[j++] = subs[i];
2051
                    }
2052
                }
2053
                ce.subscribers = newSubs;
2054
            }
2055
        }
2056
    }
2057
 
2058
};
2059
 
2060
YAHOO.lang.augmentProto(DualSlider, YAHOO.util.EventProvider);
2061
 
2062
 
2063
/**
2064
 * Factory method for creating a horizontal dual-thumb slider
2065
 * @for YAHOO.widget.Slider
2066
 * @method YAHOO.widget.Slider.getHorizDualSlider
2067
 * @static
2068
 * @param {String} bg the id of the slider's background element
2069
 * @param {String} minthumb the id of the min thumb
2070
 * @param {String} maxthumb the id of the thumb thumb
2071
 * @param {int} range the number of pixels the thumbs can move within
2072
 * @param {int} iTickSize (optional) the element should move this many pixels
2073
 * at a time
2074
 * @param {Array}  initVals (optional) [min,max] Initial thumb placement
2075
 * @return {DualSlider} a horizontal dual-thumb slider control
2076
 */
2077
YW.Slider.getHorizDualSlider =
2078
    function (bg, minthumb, maxthumb, range, iTickSize, initVals) {
2079
        var mint = new YW.SliderThumb(minthumb, bg, 0, range, 0, 0, iTickSize),
2080
            maxt = new YW.SliderThumb(maxthumb, bg, 0, range, 0, 0, iTickSize);
2081
 
2082
        return new DualSlider(
2083
                    new YW.Slider(bg, bg, mint, "horiz"),
2084
                    new YW.Slider(bg, bg, maxt, "horiz"),
2085
                    range, initVals);
2086
};
2087
 
2088
/**
2089
 * Factory method for creating a vertical dual-thumb slider.
2090
 * @for YAHOO.widget.Slider
2091
 * @method YAHOO.widget.Slider.getVertDualSlider
2092
 * @static
2093
 * @param {String} bg the id of the slider's background element
2094
 * @param {String} minthumb the id of the min thumb
2095
 * @param {String} maxthumb the id of the thumb thumb
2096
 * @param {int} range the number of pixels the thumbs can move within
2097
 * @param {int} iTickSize (optional) the element should move this many pixels
2098
 * at a time
2099
 * @param {Array}  initVals (optional) [min,max] Initial thumb placement
2100
 * @return {DualSlider} a vertical dual-thumb slider control
2101
 */
2102
YW.Slider.getVertDualSlider =
2103
    function (bg, minthumb, maxthumb, range, iTickSize, initVals) {
2104
        var mint = new YW.SliderThumb(minthumb, bg, 0, 0, 0, range, iTickSize),
2105
            maxt = new YW.SliderThumb(maxthumb, bg, 0, 0, 0, range, iTickSize);
2106
 
2107
        return new YW.DualSlider(
2108
                    new YW.Slider(bg, bg, mint, "vert"),
2109
                    new YW.Slider(bg, bg, maxt, "vert"),
2110
                    range, initVals);
2111
};
2112
 
2113
YAHOO.widget.DualSlider = DualSlider;
2114
 
2115
})();
2116
YAHOO.register("slider", YAHOO.widget.Slider, {version: "2.9.0", build: "2800"});
2117
 
2118
}, '2.9.0' ,{"requires": ["yui2-yahoo", "yui2-dom", "yui2-skin-sam-slider", "yui2-event", "yui2-dragdrop"], "optional": ["yui2-animation"]});