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https://www.brainproducts.com/wp-content/plugins/ultimate-member/assets/libs/pickadate/picker.js

js brainproducts.com collected 2026-09-24 08:59:53 UTC 38,437 bytes, 1,206 lines download raw bytes

1/*!
2 * pickadate.js v3.6.2, 2019/03/19
3 * By Amsul, http://amsul.ca
4 * Hosted on http://amsul.github.io/pickadate.js
5 * Licensed under MIT
6 */
7
8(function ( factory ) {
9
10    // AMD.
11    if ( typeof define == 'function' && define.amd )
12        define( 'picker', ['jquery'], factory )
13
14    // Node.js/browserify.
15    else if ( typeof exports == 'object' )
16        module.exports = factory( require('jquery') )
17
18    // Browser globals.
19    else this.Picker = factory( jQuery )
20
21}(function( $ ) {
22
23var $window = $( window )
24var $document = $( document )
25var $html = $( document.documentElement )
26var supportsTransitions = document.documentElement.style.transition != null
27
28
29/**
30 * The picker constructor that creates a blank picker.
31 */
32function PickerConstructor( ELEMENT, NAME, COMPONENT, OPTIONS ) {
33
34    // If there’s no element, return the picker constructor.
35    if ( !ELEMENT ) return PickerConstructor
36
37
38    var
39        IS_DEFAULT_THEME = false,
40
41
42        // The state of the picker.
43        STATE = {
44            id: ELEMENT.id || 'P' + Math.abs( ~~(Math.random() * new Date()) )
45        },
46
47
48        // Merge the defaults and options passed.
49        SETTINGS = COMPONENT ? $.extend( true, {}, COMPONENT.defaults, OPTIONS ) : OPTIONS || {},
50
51
52        // Merge the default classes with the settings classes.
53        CLASSES = $.extend( {}, PickerConstructor.klasses(), SETTINGS.klass ),
54
55
56        // The element node wrapper into a jQuery object.
57        $ELEMENT = $( ELEMENT ),
58
59
60        // Pseudo picker constructor.
61        PickerInstance = function() {
62            return this.start()
63        },
64
65
66        // The picker prototype.
67        P = PickerInstance.prototype = {
68
69            constructor: PickerInstance,
70
71            $node: $ELEMENT,
72
73
74            /**
75             * Initialize everything
76             */
77            start: function() {
78
79                // If it’s already started, do nothing.
80                if ( STATE && STATE.start ) return P
81
82
83                // Update the picker states.
84                STATE.methods = {}
85                STATE.start = true
86                STATE.open = false
87                STATE.type = ELEMENT.type
88
89
90                // Confirm focus state, convert into text input to remove UA stylings,
91                // and set as readonly to prevent keyboard popup.
92                ELEMENT.autofocus = ELEMENT == getActiveElement()
93                ELEMENT.readOnly = !SETTINGS.editable
94                ELEMENT.id = ELEMENT.id || STATE.id
95                if ( ELEMENT.type != 'text' ) {
96                    ELEMENT.type = 'text'
97                }
98
99
100                // Create a new picker component with the settings.
101                P.component = new COMPONENT(P, SETTINGS)
102
103
104                // Create the picker root and then prepare it.
105                P.$root = $( '<div class="' + CLASSES.picker + '" id="' + ELEMENT.id + '_root" />' )
106                prepareElementRoot()
107
108
109                // Create the picker holder and then prepare it.
110                P.$holder = $( createWrappedComponent() ).appendTo( P.$root )
111                prepareElementHolder()
112
113
114                // If there’s a format for the hidden input element, create the element.
115                if ( SETTINGS.formatSubmit ) {
116                    prepareElementHidden()
117                }
118
119
120                // Prepare the input element.
121                prepareElement()
122
123
124                // Insert the hidden input as specified in the settings.
125                if ( SETTINGS.containerHidden ) $( SETTINGS.containerHidden ).append( P._hidden )
126                else $ELEMENT.after( P._hidden )
127
128
129                // Insert the root as specified in the settings.
130                if ( SETTINGS.container ) $( SETTINGS.container ).append( P.$root )
131                else $ELEMENT.after( P.$root )
132
133
134                // Bind the default component and settings events.
135                P.on({
136                    start: P.component.onStart,
137                    render: P.component.onRender,
138                    stop: P.component.onStop,
139                    open: P.component.onOpen,
140                    close: P.component.onClose,
141                    set: P.component.onSet
142                }).on({
143                    start: SETTINGS.onStart,
144                    render: SETTINGS.onRender,
145                    stop: SETTINGS.onStop,
146                    open: SETTINGS.onOpen,
147                    close: SETTINGS.onClose,
148                    set: SETTINGS.onSet
149                })
150
151
152                // Once we’re all set, check the theme in use.
153                IS_DEFAULT_THEME = isUsingDefaultTheme( P.$holder[0] )
154
155
156                // If the element has autofocus, open the picker.
157                if ( ELEMENT.autofocus ) {
158                    P.open()
159                }
160
161
162                // Trigger queued the “start” and “render” events.
163                return P.trigger( 'start' ).trigger( 'render' )
164            }, //start
165
166
167            /**
168             * Render a new picker
169             */
170            render: function( entireComponent ) {
171
172                // Insert a new component holder in the root or box.
173                if ( entireComponent ) {
174                    P.$holder = $( createWrappedComponent() )
175                    prepareElementHolder()
176                    P.$root.html( P.$holder )
177                }
178                else P.$root.find( '.' + CLASSES.box ).html( P.component.nodes( STATE.open ) )
179
180                // Trigger the queued “render” events.
181                return P.trigger( 'render' )
182            }, //render
183
184
185            /**
186             * Destroy everything
187             */
188            stop: function() {
189
190                // If it’s already stopped, do nothing.
191                if ( !STATE.start ) return P
192
193                // Then close the picker.
194                P.close()
195
196                // Remove the hidden field.
197                if ( P._hidden ) {
198                    P._hidden.parentNode.removeChild( P._hidden )
199                }
200
201                // Remove the root.
202                P.$root.remove()
203
204                // Remove the input class, remove the stored data, and unbind
205                // the events (after a tick for IE - see `P.close`).
206                $ELEMENT.removeClass( CLASSES.input ).removeData( NAME )
207                setTimeout( function() {
208                    $ELEMENT.off( '.' + STATE.id )
209                }, 0)
210
211                // Restore the element state
212                ELEMENT.type = STATE.type
213                ELEMENT.readOnly = false
214
215                // Trigger the queued “stop” events.
216                P.trigger( 'stop' )
217
218                // Reset the picker states.
219                STATE.methods = {}
220                STATE.start = false
221
222                return P
223            }, //stop
224
225
226            /**
227             * Open up the picker
228             */
229            open: function( dontGiveFocus ) {
230
231                // If it’s already open, do nothing.
232                if ( STATE.open ) return P
233
234                // Add the “active” class.
235                $ELEMENT.addClass( CLASSES.active )
236                aria( ELEMENT, 'expanded', true )
237
238                // * A Firefox bug, when `html` has `overflow:hidden`, results in
239                //   killing transitions :(. So add the “opened” state on the next tick.
240                //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
241                setTimeout( function() {
242
243                    // Add the “opened” class to the picker root.
244                    P.$root.addClass( CLASSES.opened )
245                    aria( P.$root[0], 'hidden', false )
246
247                }, 0 )
248
249                // If we have to give focus, bind the element and doc events.
250                if ( dontGiveFocus !== false ) {
251
252                    // Set it as open.
253                    STATE.open = true
254
255                    // Prevent the page from scrolling.
256                    if ( IS_DEFAULT_THEME ) {
257                        $('body').
258                            css( 'overflow', 'hidden' ).
259                            css( 'padding-right', '+=' + getScrollbarWidth() )
260                    }
261
262                    // Pass focus to the root element’s jQuery object.
263                    focusPickerOnceOpened()
264
265                    // Bind the document events.
266                    $document.on( 'click.' + STATE.id + ' focusin.' + STATE.id, function( event ) {
267
268                        var target = getRealEventTarget( event, ELEMENT )
269
270                        // If the target of the event is not the element, close the picker picker.
271                        // * Don’t worry about clicks or focusins on the root because those don’t bubble up.
272                        //   Also, for Firefox, a click on an `option` element bubbles up directly
273                        //   to the doc. So make sure the target wasn't the doc.
274                        // * In Firefox stopPropagation() doesn’t prevent right-click events from bubbling,
275                        //   which causes the picker to unexpectedly close when right-clicking it. So make
276                        //   sure the event wasn’t a right-click.
277                        // * In Chrome 62 and up, password autofill causes a simulated focusin event which
278                        //   closes the picker.
279                        if ( ! event.isSimulated && target != ELEMENT && target != document && event.which != 3 ) {
280
281                            // If the target was the holder that c
281overs the screen,
282                            // keep the element focused to maintain tabindex.
283                            P.close( target === P.$holder[0] )
284                        }
285
286                    }).on( 'keydown.' + STATE.id, function( event ) {
287
288                        var
289                            // Get the keycode.
290                            keycode = event.keyCode,
291
292                            // Translate that to a selection change.
293                            keycodeToMove = P.component.key[ keycode ],
294
295                            // Grab the target.
296                            target = getRealEventTarget( event, ELEMENT )
297
298
299                        // On escape, close the picker and give focus.
300                        if ( keycode == 27 ) {
301                            P.close( true )
302                        }
303
304
305                        // Check if there is a key movement or “enter” keypress on the element.
306                        else if ( target == P.$holder[0] && ( keycodeToMove || keycode == 13 ) ) {
307
308                            // Prevent the default action to stop page movement.
309                            event.preventDefault()
310
311                            // Trigger the key movement action.
312                            if ( keycodeToMove ) {
313                                PickerConstructor._.trigger( P.component.key.go, P, [ PickerConstructor._.trigger( keycodeToMove ) ] )
314                            }
315
316                            // On “enter”, if the highlighted item isn’t disabled, set the value and close.
317                            else if ( !P.$root.find( '.' + CLASSES.highlighted ).hasClass( CLASSES.disabled ) ) {
318                                P.set( 'select', P.component.item.highlight )
319                                if ( SETTINGS.closeOnSelect ) {
320                                    P.close( true )
321                                }
322                            }
323                        }
324
325
326                        // If the target is within the root and “enter” is pressed,
327                        // prevent the default action and trigger a click on the target instead.
328                        else if ( $.contains( P.$root[0], target ) && keycode == 13 ) {
329                            event.preventDefault()
330                            target.click()
331                        }
332                    })
333                }
334
335                // Trigger the queued “open” events.
336                return P.trigger( 'open' )
337            }, //open
338
339
340            /**
341             * Close the picker
342             */
343            close: function( giveFocus ) {
344
345                // If we need to give focus, do it before changing states.
346                if ( giveFocus ) {
347                    if ( SETTINGS.editable ) {
348                        ELEMENT.focus()
349                    }
350                    else {
351                        // ....ah yes! It would’ve been incomplete without a crazy workaround for IE :|
352                        // The focus is triggered *after* the close has completed - causing it
353                        // to open again. So unbind and rebind the event at the next tick.
354                        P.$holder.off( 'focus.toOpen' ).focus()
355                        setTimeout( function() {
356                            P.$holder.on( 'focus.toOpen', handleFocusToOpenEvent )
357                        }, 0 )
358                    }
359                }
360
361                // Remove the “active” class.
362                $ELEMENT.removeClass( CLASSES.active )
363                aria( ELEMENT, 'expanded', false )
364
365                // * A Firefox bug, when `html` has `overflow:hidden`, results in
366                //   killing transitions :(. So remove the “opened” state on the next tick.
367                //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
368                setTimeout( function() {
369
370                    // Remove the “opened” and “focused” class from the picker root.
371                    P.$root.removeClass( CLASSES.opened + ' ' + CLASSES.focused )
372                    aria( P.$root[0], 'hidden', true )
373
374                }, 0 )
375
376                // If it’s already closed, do nothing more.
377                if ( !STATE.open ) return P
378
379                // Set it as closed.
380                STATE.open = false
381
382                // Allow the page to scroll.
383                if ( IS_DEFAULT_THEME ) {
384                    $('body').
385                        css( 'overflow', '' ).
386                        css( 'padding-right', '-=' + getScrollbarWidth() )
387                }
388
389                // Unbind the document events.
390                $document.off( '.' + STATE.id )
391
392                // Trigger the queued “close” events.
393                return P.trigger( 'close' )
394            }, //close
395
396
397            /**
398             * Clear the values
399             */
400            clear: function( options ) {
401                return P.set( 'clear', null, options )
402            }, //clear
403
404
405            /**
406             * Set something
407             */
408            set: function( thing, value, options ) {
409
410                var thingItem, thingValue,
411                    thingIsObject = $.isPlainObject( thing ),
412                    thingObject = thingIsObject ? thing : {}
413
414                // Make sure we have usable options.
415                options = thingIsObject && $.isPlainObject( value ) ? value : options || {}
416
417                if ( thing ) {
418
419                    // If the thing isn’t an object, make it one.
420                    if ( !thingIsObject ) {
421                        thingObject[ thing ] = value
422                    }
423
424                    // Go through the things of items to set.
425                    for ( thingItem in thingObject ) {
426
427                        // Grab the value of the thing.
428                        thingValue = thingObject[ thingItem ]
429
430                        // First, if the item exists and there’s a value, set it.
431                        if ( thingItem in P.component.item ) {
432                            if ( thingValue === undefined ) thingValue = null
433                            P.component.set( thingItem, thingValue, options )
434                        }
435
436                        // Then, check to update the element value and broadcast a change.
437                        if ( ( thingItem == 'select' || thingItem == 'clear' ) && SETTINGS.updateInput ) {
438                            $ELEMENT.
439                                val( thingItem == 'clear' ? '' : P.get( thingItem, SETTINGS.format ) ).
440                                trigger( 'change' )
441                        }
442                    }
443
444                    // Render a new picker.
445                    P.render()
446                }
447
448                // When the method isn’t muted, trigger queued “set” events and pass the `thingObject`.
449                return options.muted ? P : P.trigger( 'set', thingObject )
450            }, //set
451
452
453            /**
454             * Get something
455             */
456            get: function( thing, format ) {
457
458                // Make sure there’s something to get.
459                thing = thing || 'value'
460
461                // If a picker state exists, return that.
462                if ( STATE[ thing ] != null ) {
463                    return STATE[ thing ]
464                }
465
466                // Return the submission value, if that.
467                if ( thing == 'valueSubmit' ) {
468                    if ( P._hidden ) {
469                        return P._hidden.value
470                    }
471                    thing = 'value'
472                }
473
474                // Return the value, if that.
475                if ( thing == 'value' ) {
476                    return ELEMENT.value
477                }
478
479                // Check if a component item exists, return that.
480                if ( thing in P.component.item ) {
481                    if ( typeof format == 'string' ) {
482                        var thingValue = P.component.get( thing )
483                        return thingValue ?
484                            PickerConstructor._.trigger(
485                                P.component.formats.toString,
486                                P.component,
487                                [ format, thingValue ]
488                            ) : ''
489                    }
490                    return P.component.get( thing )
491                }
492            }, //get
493
494
495
496            /**
497             * Bind events on the things.
498             */
499            on: function( thing, method, internal ) {
500
501                var thingName, thingMethod,
502                    thingIsObject = $.isPlainObject( thing ),
503                    thingObject = thingIsObject ? thing : {}
504
505                if ( thing ) {
506
507                    // If the thing isn’t an object, make it one.
508                    if ( !thingIsObject ) {
509                        thingObject[ thing ] = method
510                    }
511
512                    // Go through the things to bind to.
513                    for ( thingName in thingObject ) {
514
515                        // Grab the method of the thing.
516                        thingMethod = thingObject[ thingName ]
517
518                        // If it was an internal binding, prefix it.
519                        if ( internal ) {
520                            thingName = '_' + thingName
521                        }
522
523                        // Make sure the thing methods collection exists.
524                        STATE.methods[ thingName ] = STATE.methods[ thingName ] || []
525
526                        // Add the method to the relative method collection.
527                        STATE.methods[ thingName ].push( thingMethod )
528                    }
529                }
530
531                return P
532            }, //on
533
534
535
536            /**
537             * Unbind events on the things.
538             */
539            off: function() {
540                var i, thingName,
541                    names = arguments;
542                for ( i = 0, namesCount = names.length; i < namesCount; i += 1 ) {
543                    thingName = names[i]
544                    if ( thingName in STATE.methods ) {
545                        delete STATE.methods[thingName]
546                    }
547                }
548                return P
549            },
550
551
552            /**
553             * Fire off method events.
554             */
555            trigger: function( name, data ) {
556                var _trigger = function( name ) {
557                    var methodList = STATE.methods[ name ]
558                    if ( methodList ) {
559                        methodList.map( function( method ) {
560                            PickerConstructor._.trigger( method, P, [ data ] )
561                        })
562                    }
563                }
564                _trigger( '_' + name )
565                _trigger( name )
566                return P
567            }
567 //trigger
568        } //PickerInstance.prototype
569
570
571    /**
572     * Wrap the picker holder components together.
573     */
574    function createWrappedComponent() {
575
576        // Create a picker wrapper holder
577        return PickerConstructor._.node( 'div',
578
579            // Create a picker wrapper node
580            PickerConstructor._.node( 'div',
581
582                // Create a picker frame
583                PickerConstructor._.node( 'div',
584
585                    // Create a picker box node
586                    PickerConstructor._.node( 'div',
587
588                        // Create the components nodes.
589                        P.component.nodes( STATE.open ),
590
591                        // The picker box class
592                        CLASSES.box
593                    ),
594
595                    // Picker wrap class
596                    CLASSES.wrap
597                ),
598
599                // Picker frame class
600                CLASSES.frame
601            ),
602
603            // Picker holder class
604            CLASSES.holder,
605
606            'tabindex="-1"'
607        ) //endreturn
608    } //createWrappedComponent
609
610    /**
611     * Prepare the input element with all bindings.
612     */
613    function prepareElement() {
614
615        $ELEMENT.
616
617            // Store the picker data by component name.
618            data(NAME, P).
619
620            // Add the “input” class name.
621            addClass(CLASSES.input).
622
623            // If there’s a `data-value`, update the value of the element.
624            val( $ELEMENT.data('value') ?
625                P.get('select', SETTINGS.format) :
626                ELEMENT.value
627            ).
628
629            // On focus/click, open the picker.
630            on( 'focus.' + STATE.id + ' click.' + STATE.id,
631            debounce(function(event) {
632                event.preventDefault()
633                P.open()
634            }, 100))
635
636        // Only bind keydown events if the element isn’t editable.
637        if ( !SETTINGS.editable ) {
638
639            $ELEMENT.
640
641                // Handle keyboard event based on the picker being opened or not.
642                on( 'keydown.' + STATE.id, handleKeydownEvent )
643        }
644
645
646        // Update the aria attributes.
647        aria(ELEMENT, {
648            haspopup: true,
649            expanded: false,
650            readonly: false,
651            owns: ELEMENT.id + '_root'
652        })
653    }
654
655
656    /**
657     * Prepare the root picker element with all bindings.
658     */
659    function prepareElementRoot() {
660        aria( P.$root[0], 'hidden', true )
661    }
662
663
664     /**
665      * Prepare the holder picker element with all bindings.
666      */
667    function prepareElementHolder() {
668
669        P.$holder.
670
671            on({
672
673                // For iOS8.
674                keydown: handleKeydownEvent,
675
676                'focus.toOpen': handleFocusToOpenEvent,
677
678                blur: function() {
679                    // Remove the “target” class.
680                    $ELEMENT.removeClass( CLASSES.target )
681                },
682
683                // When something within the holder is focused, stop from bubbling
684                // to the doc and remove the “focused” state from the root.
685                focusin: function( event ) {
686                    P.$root.removeClass( CLASSES.focused )
687                    event.stopPropagation()
688                },
689
690                // When something within the holder is clicked, stop it
691                // from bubbling to the doc.
692                'mousedown click': function( event ) {
693
694                    var target = getRealEventTarget( event, ELEMENT )
695
696                    // Make sure the target isn’t the root holder so it can bubble up.
697                    if ( target != P.$holder[0] ) {
698
699                        event.stopPropagation()
700
701                        // * For mousedown events, cancel the default action in order to
702                        //   prevent cases where focus is shifted onto external elements
703                        //   when using things like jQuery mobile or MagnificPopup (ref: #249 & #120).
704                        //   Also, for Firefox, don’t prevent action on the `option` element.
705                        if ( event.type == 'mousedown' && !$( target ).is( 'input, select, textarea, button, option' )) {
706
707                            event.preventDefault()
708
709                            // Re-focus onto the holder so that users can click away
710                            // from elements focused within the picker.
711                            P.$holder.eq(0).focus()
712                        }
713                    }
714                }
715
716            }).
717
718            // If there’s a click on an actionable element, carry out the actions.
719            on( 'click', '[data-pick], [data-nav], [data-clear], [data-close]', function() {
720
721                var $target = $( this ),
722                    targetData = $target.data(),
723                    targetDisabled = $target.hasClass( CLASSES.navDisabled ) || $target.hasClass( CLASSES.disabled ),
724
725                    // * For IE, non-focusable elements can be active elements as well
726                    //   (http://stackoverflow.com/a/2684561).
727                    activeElement = getActiveElement()
728                    activeElement = activeElement && ( (activeElement.type || activeElement.href ) ? activeElement : null);
729
730                // If it’s disabled or nothing inside is actively focused, re-focus the element.
731                if ( targetDisabled || activeElement && !$.contains( P.$root[0], activeElement ) ) {
732                    P.$holder.eq(0).focus()
733                }
734
735                // If something is superficially changed, update the `highlight` based on the `nav`.
736                if ( !targetDisabled && targetData.nav ) {
737                    P.set( 'highlight', P.component.item.highlight, { nav: targetData.nav } )
738                }
739
740                // If something is picked, set `select` then close with focus.
741                else if ( !targetDisabled && 'pick' in targetData ) {
742                    P.set( 'select', targetData.pick )
743                    if ( SETTINGS.closeOnSelect ) {
744                        P.close( true )
745                    }
746                }
747
748                // If a “clear” button is pressed, empty the values and close with focus.
749                else if ( targetData.clear ) {
750                    P.clear()
751                    if ( SETTINGS.closeOnClear ) {
752                        P.close( true )
753                    }
754                }
755
756                else if ( targetData.close ) {
757                    P.close( true )
758                }
759
760            }) //P.$holder
761
762    }
763
764
765     /**
766      * Prepare the hidden input element along with all bindings.
767      */
768    function prepareElementHidden() {
769
770        var name
771
772        if ( SETTINGS.hiddenName === true ) {
773            name = ELEMENT.name
774            ELEMENT.name = ''
775        }
776        else {
777            name = [
778                typeof SETTINGS.hiddenPrefix == 'string' ? SETTINGS.hiddenPrefix : '',
779                typeof SETTINGS.hiddenSuffix == 'string' ? SETTINGS.hiddenSuffix : '_submit'
780            ]
781            name = name[0] + ELEMENT.name + name[1]
782        }
783
784        P._hidden = $(
785            '<input ' +
786            'type=hidden ' +
787
788            // Create the name using the original input’s with a prefix and suffix.
789            'name="' + name + '"' +
790
791            // If the element has a value, set the hidden value as well.
792            (
793                $ELEMENT.data('value') || ELEMENT.value ?
794                    ' value="' + P.get('select', SETTINGS.formatSubmit) + '"' :
795                    ''
796            ) +
797            '>'
798        )[0]
799
800        $ELEMENT.
801
802            // If the value changes, update the hidden input with the correct format.
803            on('change.' + STATE.id, function() {
804                P._hidden.value = ELEMENT.value ?
805                    P.get('select', SETTINGS.formatSubmit) :
806                    ''
807            })
808    }
809
810
811    // Wait for transitions to end before focusing the holder. Otherwise, while
812    // using the `container` option, the view jumps to the container.
813    function focusPickerOnceOpened() {
814
815        if (IS_DEFAULT_THEME && supportsTransitions) {
816            P.$holder.find('.' + CLASSES.frame).one('transitionend', function() {
817                P.$holder.eq(0).focus()
818            })
819        }
820        else {
821            setTimeout(function() {
822                P.$holder.eq(0).focus()
823            }, 0)
824        }
825    }
826
827
828    function handleFocusToOpenEvent(event) {
829
830        // Stop the event from propagating to the doc.
831        event.stopPropagation()
832
833        // Add the “target” class.
834        $ELEMENT.addClass( CLASSES.target )
835
836        // Add the “focused” class to the root.
837        P.$root.addClass( CLASSES.focused )
838
839        // And then finally open the picker.
840        P.open()
841    }
842
843
844    // For iOS8.
845    function handleKeydownEvent( event ) {
846
847        var keycode = event.keyCode,
848
849            // Check if one of the delete keys was pressed.
850            isKeycodeDelete = /^(8|46)$/.test(keycode)
851
852        // For some reason IE clears the input value on “escape”.
853        if ( keycode == 27 ) {
854            P.close( true )
855            return false
856        }
857
858        // Check if `space` or `delete` was pressed or the picker is closed with a key movement.
859        if ( keycode == 32 || isKeycodeDelete || !STATE.open && P.component.key[keycode] ) {
860
861            // Prevent it from moving the page and bubbling to doc.
862            event.preventDefault()
863            event.stopPropagation()
864
865            // If `delete` was pressed, clear the values and close the picker.
866            // Otherwise open the picker.
867            if ( isKeycodeDelete ) { P.clear().close() }
868            else { P.open() }
869        }
870    }
871
872
873    // Return a new picker instance.
874    return new PickerInstance()
875} //PickerConstructor
876
877
878
879/**
880 * The default classes and prefix to use for the HTML classes.
881 */
882PickerConstructor.klasses = function( prefix ) {
883    prefix = prefix || 'picker'
884    return {
885
886        picker: prefix,
887        opened: prefix + '--opened',
888        focused: prefix + '--focused',
889
890        input: prefix + '__input',
891        active: prefix + '__input--active',
892        target: prefix + '__input--target',
893
894        holder: prefix + '__holder',
895
896        frame: prefix + '__frame',
897        wrap: prefix + '__wrap',
898
899        box: prefix + '__box'
900    }
901} //PickerConstructor.klasses
902
903
904
905/**
906 * Check if the default theme is being used.
907 */
908function isUsingDefaultTheme( element ) {
909
910    var theme,
911        prop = 'position'
912
913    // For IE.
914    if ( element.currentStyle ) {
915        theme = element.currentStyle[prop]
916    }
917
918    // For normal browsers.
919    else if ( window.getComputedStyle ) {
920        theme = getComputedStyle( element )[prop]
921    }
922
923    return theme == 'fixed'
924}
925
926
927
928/**
929 * Get the width of the browser’s scrollbar.
930 * Taken from: https://github.com/VodkaBears/Remodal/blob/master/src/jquery.remodal.js
931 */
932function getScrollbarWidth() {
933
934    if ( $html.height() <= $window.height() ) {
935        return 0
936    }
937
938    var $outer = $( '<div style="visibility:hidden;width:100px" />' ).
939        appendTo( 'body' )
940
941    // Get the width without scrollbars.
942    var widthWithoutScroll = $outer[0].offsetWidth
943
944    // Force adding scrollbars.
945    $outer.css( 'overflow', 'scroll' )
946
947    // Add the inner div.
948    var $inner = $( '<div style="width:100%" />' ).appendTo( $outer )
949
950    // Get the width with scrollbars.
951    var widthWithScroll = $inner[0].offsetWidth
952
953    // Remove the divs.
954    $outer.remove()
955
956    // Return the difference between the widths.
957    return widthWithoutScroll - widthWithScroll
958}
959
960
961
962/**
963 * Get the target element from the event.
964 * If ELEMENT is supplied and present in the event path (ELEMENT is ancestor of the target),
965 * returns ELEMENT instead
966 */
967function getRealEventTarget( event, ELEMENT ) {
968
969    var path = []
970
971    if ( event.path ) {
972        path = event.path
973    }
974
975    if ( event.originalEvent && event.originalEvent.path ) {
976        path = event.originalEvent.path
977    }
978
979    if ( path && path.length > 0 ) {
980        if ( ELEMENT && path.indexOf( ELEMENT ) >= 0 ) {
981            return ELEMENT
982        } else {
983            return path[0]
984        }
985    }
986
987    return event.target
988}
989
990// taken from https://davidwalsh.name/javascript-debounce-function
991function debounce(func, wait, immediate) {
992    var timeout;
993    return function() {
994        var context = this, args = arguments;
995        var later = function() {
996            timeout = null;
997            if (!immediate) func.apply(context, args);
998        };
999        var callNow = immediate && !timeout;
1000        clearTimeout(timeout);
1001        timeout = setTimeout(later, wait);
1002        if (callNow) func.apply(context, args);
1003    };
1004}
1005
1006/**
1007 * PickerConstructor helper methods.
1008 */
1009PickerConstructor._ = {
1010
1011    /**
1012     * Create a group of nodes. Expects:
1013     * `
1014        {
1015            min:    {Integer},
1016            max:    {Integer},
1017            i:      {Integer},
1018            node:   {String},
1019            item:   {Function}
1020        }
1021     * `
1022     */
1023    group: function( groupObject ) {
1024
1025        var
1026            // Scope for the looped object
1027            loopObjectScope,
1028
1029            // Create the nodes list
1030            nodesList = '',
1031
1032            // The counter starts from the `min`
1033            counter = PickerConstructor._.trigger( groupObject.min, groupObject )
1034
1035
1036        // Loop from the `min` to `max`, incrementing by `i`
1037        for ( ; counter <= PickerConstructor._.trigger( groupObject.max, groupObject, [ counter ] ); counter += groupObject.i ) {
1038
1039            // Trigger the `item` function within scope of the object
1040            loopObjectScope = PickerConstructor._.trigger( groupObject.item, groupObject, [ counter ] )
1041
1042            // Splice the subgroup and create nodes out of the sub nodes
1043            nodesList += PickerConstructor._.node(
1044                groupObject.node,
1045                loopObjectScope[ 0 ],   // the node
1046                loopObjectScope[ 1 ],   // the classes
1047                loopObjectScope[ 2 ]    // the attributes
1048            )
1049        }
1050
1051        // Return the list of nodes
1052        return nodesList
1053    }, //group
1054
1055
1056    /**
1057     * Create a dom node string
1058     */
1059    node: function( wrapper, item, klass, attribute ) {
1060
1061        // If the item is false-y, just return an empty string
1062        if ( !item ) return ''
1063
1064        // If the item is an array, do a join
1065        item = $.isArray( item ) ? item.join( '' ) : item
1066
1067        // Check for the class
1068        klass = klass ? ' class="' + klass + '"' : ''
1069
1070        // Check for any attributes
1071        attribute = attribute ? ' ' + attribute : ''
1072
1073        // Return the wrapped item
1074        return '<' + wrapper + klass + attribute + '>' + item + '</' + wrapper + '>'
1075    }, //node
1076
1077
1078    /**
1079     * Lead numbers below 10 with a zero.
1080     */
1081    lead: function( number ) {
1082        return ( number < 10 ? '0': '' ) + number
1083    },
1084
1085
1086    /**
1087     * Trigger a function otherwise return the value.
1088     */
1089    trigger: function( callback, scope, args ) {
1090        return typeof callback == 'function' ? callback.apply( scope, args || [] ) : callback
1091    },
1092
1093
1094    /**
1095     * If the second character is a digit, length is 2 otherwise 1.
1096     */
1097    digits: function( string ) {
1098        return ( /\d/ ).test( string[ 1 ] ) ? 2 : 1
1099    },
1100
1101
1102    /**
1103     * Tell if something is a date object.
1104     */
1105    isDate: function( value ) {
1106        return {}.toString.call( value ).indexOf( 'Date' ) > -1 && this.isInteger( value.getDate() )
1107    },
1108
1109
1110    /**
1111     * Tell if something is an integer.
1112     */
1113    isInteger: function( value ) {
1114        return {}.toString.call( value ).indexOf( 'Number' ) > -1 && value % 1 === 0
1115    },
1116
1117
1118    /**
1119     * Create ARIA attribute strings.
1120     */
1121    ariaAttr: ariaAttr
1122} //PickerConstructor._
1123
1124
1125
1126/**
1127 * Extend the picker with a component and defaults.
1128 */
1129PickerConstructor.extend = function( name, Component ) {
1130
1131    // Extend jQuery.
1132    $.fn[ name ] = function( options, action ) {
1133
1134        // Grab the component data.
1135        var componentData = this.data( name )
1136
1137        // If the picker is requested, return the data object.
1138        if ( options == 'picker' ) {
1139            return componentData
1140        }
1141
1142        // If the component data exists and `options` is a string, carry out the action.
1143        if ( componentData && typeof options == 'string' ) {
1144            return PickerConstructor._.trigger( componentData[ options ], componentData, [ action ] )
1145        }
1146
1147        // Otherwise go through each matched element and if the component
1148        // doesn’t exist, create a new picker using `this` element
1149        // and merging the defaults and options with a deep copy.
1150        return this.each( function() {
1151            var $this = $( this )
1152            if ( !$this.data( name ) ) {
1153                new PickerConstructor( this, name, Component, options )
1154            }
1155        })
1156    }
1157
1158    // Set the defaults.
1159    $.fn[ name ].defaults = Component.defaults
1160} //PickerConstructor.extend
1161
1162
1163
1164function aria(element, attribute, value) {
1165    if ( $.isPlainObject(attribute) ) {
1166        for ( var key in attribute ) {
1167            ariaSet(element, key, attribute[key])
1168        }
1169    }
1170    else {
1171        ariaSet(element, attribute, value)
1172    }
1173}
1174function ariaSet(element, attribute, value) {
1175    element.setAttribute(
1176        (attribute == 'role' ? '' : 'aria-') + attribute,
1177        value
1178    )
1179}
1180function ariaAttr(attribute, data) {
1181    if ( !$.isPlainObject(attribute) ) {
1182        attribute = { attribute: data }
1183    }
1184    data = ''
1185    for ( var key in attribute ) {
1186        var attr = (key == 'role' ? '' : 'aria-') + key,
1187            attrVal = attribute[key]
1188        data += attrVal == null ? '' : attr + '="' + attribute[key] + '"'
1189    }
1190    return data
1191}
1192
1193// IE8 bug throws an error for activeElements within iframes.
1194function getActiveElement() {
1195    try {
1196        return document.activeElement
1197    } catch ( err ) { }
1198}
1199
1200
1201
1202// Expose the picker constructor.
1203return PickerConstructor
1204
1205
1206}));

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