/
modaal.js
1390 lines (1143 loc) · 46.9 KB
/
modaal.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*!
Modaal - accessible modals - v0.4.4
by Humaan, for all humans.
http://humaan.com
*/
/**
Modaal jQuery Plugin : Accessible Modals
==== General Options ===
type (string) : ajax, inline, image, iframe, confirm. Defaults to 'inline'
content_source (stribg) : Accepts a string value for your target element, such as '#my-content'. This allows for when trigger element is
an `<a href="#">` link. Not to be confused with the already existing `source` event.
animation (string) : Fade, expand, down, up. Defaults to 'fade'
after_callback_delay (integer) : Specify a delay value for the after open callbacks. This is necessary because with the bundled animations
have a set duration in the bundled CSS. Specify a delay of the same amount as the animation duration in so
more accurately fire the after open/close callbacks. Defaults 350, does not apply if animation is 'none',
after open callbacks are dispatched immediately
is_locked (boolean) : Set this to true to disable closing the modal via keypress or clicking the background. Beware that if
type != 'confirm' there will be no interface to dismiss the modal if is_locked = true, you'd have to
programmatically arrange to dismiss the modal. Confirm modals are always locked regardless of this option
Defaults to false
hide_close (boolean) : Set this to true to hide the close modal button. Key press and overlay click will still close the modal.
This method is best used when you want to put a custom close button inside the modal container space.
background (string) : Background overlay style. Defaults to '#000'
overlay_opacity (float) : Background overlay transparency. Defaults to 0.8
overlay_close (boolean) : Set this to false if you want to disable click to close on overlay background.
accessible_title (string) : Accessible title. Default 'Dialog Window'
start_open (boolean) : Set this to true to launch the Modaal window immediately on page open
fullscreen (boolean) : Set this to true to make the modaal fill the entire screen, false will default to own width/height attributes.
custom_class (string) : Fill in this string with a custom class that will be applied to the outer most modal wrapper.
width (integer) : Desired width of the modal. Required for iframe type. Defaults to undefined //TODO
height (integer) : Desired height of the modal. Required for iframe type. Defaults to undefined //TODO
background_scroll (boolean) : Set this to true to enable the page to scroll behind the open modal.
should_open (boolean|function) : Boolean or closure that returns a boolean to determine whether to open the modal or not.
close_text : String for close button text. Available for localisation and alternative languages to be used.
close_aria_label : String for close button aria-label attribute (value that screen readers will read out). Available for localisation and alternative languages to be used.
=== Events ===
before_open (function) : Callback function executed before modal is opened
after_open (function) : Callback function executed after modal is opened
before_close (function) : Callback function executed before modal is closed
after_close (function) : Callback function executed after modal is closed
source (function(element, src)) : Callback function executed on the default source, it is intended to transform the
source (href in an AJAX modal or iframe). The function passes in the triggering element
as well as the default source depending of the modal type. The default output of the
function is an untransformed default source.
=== Confirm Options & Events ===
confirm_button_text (string) : Text on the confirm button. Defaults to 'Confirm'
confirm_cancel_button_text (string) : Text on the confirm modal cancel button. Defaults to 'Cancel'
confirm_title (string) : Title for confirm modal. Default 'Confirm Title'
confirm_content (string) : HTML content for confirm message
confirm_callback (function) : Callback function for when the confirm button is pressed as opposed to cancel
confirm_cancel_callback (function) : Callback function for when the cancel button is pressed
=== Gallery Options & Events ===
gallery_active_class (string) : Active class applied to the currently active image or image slide in a gallery 'gallery_active_item'
outer_controls (boolean) : Set to true to put the next/prev controls outside the Modaal wrapper, at the edges of the browser window.
before_image_change (function) : Callback function executed before the image slide changes in a gallery modal. Default function( current_item, incoming_item )
after_image_change (function) : Callback function executed after the image slide changes in a gallery modal. Default function ( current_item )
=== AJAX Options & Events ===
loading_content (string) : HTML content for loading message. Default 'Loading …'
loading_class (string) : Class name to be applied while content is loaded via AJAX. Default 'is_loading'
ajax_error_class (string) : Class name to be applied when content has failed to load. Default is 'modaal-error'
ajax_success (function) : Callback for when AJAX content is loaded in
=== SOCIAL CONTENT ===
instagram_id (string) : Unique photo ID for an Instagram photo.
*/
( function( $ ) {
var modaal_loading_spinner = '<div class="modaal-loading-spinner"><div><div></div></div><div><div></div></div><div><div></div></div><div><div></div></div><div><div></div></div><div><div></div></div><div><div></div></div><div><div></div></div></div>'
var Modaal = {
init : function(options, elem) {
var self = this;
self.dom = $('body');
self.$elem = $(elem);
self.options = $.extend({}, $.fn.modaal.options, self.$elem.data(), options);
self.xhr = null;
// set up the scope
self.scope = {
is_open: false,
id: 'modaal_' + ( new Date().getTime() ) + ( Math.random().toString(16).substring(2) ),
source: self.options.content_source ? self.options.content_source : self.$elem.attr('href')
};
// add scope attribute to trigger element
self.$elem.attr('data-modaal-scope', self.scope.id);
// private options
self.private_options = {
active_class: 'is_active'
};
self.lastFocus = null;
// if is_locked
if ( self.options.is_locked || self.options.type == 'confirm' || self.options.hide_close ) {
self.scope.close_btn = '';
} else {
self.scope.close_btn = '<button type="button" class="modaal-close" id="modaal-close" aria-label="' + self.options.close_aria_label + '"><span>' + self.options.close_text + '</span></button>';
}
// reset animation_speed
if (self.options.animation === 'none' ){
self.options.animation_speed = 0;
self.options.after_callback_delay = 0;
}
// On click to open modal
$(elem).on('click.Modaal', function(e) {
e.preventDefault();
self.create_modaal(self, e);
});
// Define next/prev buttons
if (self.options.outer_controls === true) {
var mod_class = 'outer';
} else {
var mod_class = 'inner';
}
self.scope.prev_btn = '<button type="button" class="modaal-gallery-control modaal-gallery-prev modaal-gallery-prev-' + mod_class + '" id="modaal-gallery-prev" aria-label="Previous image (use left arrow to change)"><span>Previous Image</span></button>';
self.scope.next_btn = '<button type="button" class="modaal-gallery-control modaal-gallery-next modaal-gallery-next-' + mod_class + '" id="modaal-gallery-next" aria-label="Next image (use right arrow to change)"><span>Next Image</span></button>';
// Check for start_open
if (self.options.start_open === true ){
self.create_modaal( self );
}
},
// Initial create to determine which content type it requires
// ----------------------------------------------------------------
create_modaal : function(self, e) {
var self = this;
var source;
// Save last active state before modal
self.lastFocus = self.$elem;
if ( self.options.should_open === false || ( typeof self.options.should_open === 'function' && self.options.should_open() === false ) ) {
return;
}
// CB: before_open
self.options.before_open.call(self, e);
switch (self.options.type) {
case 'inline':
self.create_basic();
break;
case 'ajax':
source = self.options.source( self.$elem, self.scope.source );
self.fetch_ajax( source );
break;
case 'confirm':
self.options.is_locked = true;
self.create_confirm();
break;
case 'image':
self.create_image();
break;
case 'iframe':
source = self.options.source( self.$elem, self.scope.source );
self.create_iframe( source );
break;
case 'video':
self.create_video(self.scope.source);
break;
case 'instagram':
self.create_instagram();
break;
}
// call events to be watched (click, tab, keyup, keydown etc.)
self.watch_events();
},
// Watching Modal
// ----------------------------------------------------------------
watch_events : function() {
var self = this;
self.dom.off('click.Modaal keyup.Modaal keydown.Modaal');
// Body keydown
self.dom.on('keydown.Modaal', function(e) {
var key = e.keyCode;
var target = e.target;
// look for tab change and reset focus to modal window
// done in keydown so the check fires repeatedly when you hold the tab key down
if (key == 9 && self.scope.is_open) {
if (!$.contains(document.getElementById(self.scope.id), target) ) {
$('#' + self.scope.id).find('*[tabindex="0"]').focus();
}
}
});
// Body keyup
self.dom.on('keyup.Modaal', function(e) {
var key = e.keyCode;
var target = e.target;
if ( (e.shiftKey && e.keyCode == 9) && self.scope.is_open) {
// Watch for shift + tab key press. if open shift focus to close button.
if (!$.contains(document.getElementById(self.scope.id), target) ) {
$('#' + self.scope.id).find('.modaal-close').focus();
}
}
if ( !self.options.is_locked ){
// On escape key press close modal
if (key == 27 && self.scope.is_open ) {
if ( $(document.activeElement).is('input:not(:checkbox):not(:radio)') ) {
return false;
}
self.modaal_close();
return;
}
}
// is gallery open and images length is > 1
if ( self.options.type == 'image' ) {
// arrow left for back
if (key == 37 && self.scope.is_open && (!$('#' + self.scope.id + ' .modaal-gallery-prev').hasClass('is_hidden')) ) {
self.gallery_update('prev');
}
// arrow right for next
if (key == 39 && self.scope.is_open && (!$('#' + self.scope.id + ' .modaal-gallery-next').hasClass('is_hidden')) ) {
self.gallery_update('next');
}
return;
}
});
// Body click/touch
self.dom.on('click.Modaal', function(e) {
var trigger = $(e.target);
// General Controls: If it's not locked allow greedy close
if ( !self.options.is_locked ){
if ( (self.options.overlay_close && trigger.is('.modaal-inner-wrapper')) || trigger.is('.modaal-close') || trigger.closest('.modaal-close').length ) {
self.modaal_close();
return;
}
}
//Confirm Controls
if ( trigger.is('.modaal-confirm-btn' ) ){
// if 'OK' button is clicked, run confirm_callback()
if ( trigger.is('.modaal-ok') ) {
self.options.confirm_callback.call(self, self.lastFocus);
}
if ( trigger.is('.modaal-cancel') ) {
self.options.confirm_cancel_callback.call(self, self.lastFocus);
}
self.modaal_close();
return;
}
// Gallery Controls
if ( trigger.is( '.modaal-gallery-control' ) ){
// it not active, don't do nuthin!
if ( trigger.hasClass('is_hidden') ) {
return;
}
// trigger previous
if ( trigger.is('.modaal-gallery-prev') ) {
self.gallery_update('prev');
}
// trigger next
if ( trigger.is('.modaal-gallery-next') ) {
self.gallery_update('next');
}
return;
}
});
},
// Append markup into DOM
build_modal : function(content) {
var self = this;
// if is instagram
var igClass = '';
if ( self.options.type == 'instagram' ) {
igClass = ' modaal-instagram';
}
var wrap_class = (self.options.type == 'video') ? 'modaal-video-wrap' : 'modaal-content';
/*
modaal-start_none : fully hidden via display:none;
modaal-start_fade : hidden via opacity:0
modaal-start_slidedown : ...
*/
var animation_class;
switch ( self.options.animation ) {
case 'fade' :
animation_class = ' modaal-start_fade';
break;
case 'slide-down' :
animation_class = ' modaal-start_slidedown';
break;
default :
animation_class = ' modaal-start_none'
}
// fullscreen check
var fullscreen_class = '';
if ( self.options.fullscreen ) {
fullscreen_class = ' modaal-fullscreen';
}
// custom class check
if ( self.options.custom_class !== '' || typeof(self.options.custom_class) !== 'undefined' ) {
self.options.custom_class = ' ' + self.options.custom_class;
}
// if width and heights exists and is typeof number
var dimensionsStyle = '';
if ( self.options.width && self.options.height && typeof self.options.width == 'number' && typeof self.options.height == 'number' ) {
// if width and height exist, and they are both numbers
dimensionsStyle = ' style="max-width:' + self.options.width + 'px;height:' + self.options.height + 'px;overflow:auto;"';
} else if ( self.options.width && typeof self.options.width == 'number' ) {
// if only width
dimensionsStyle = ' style="max-width:' + self.options.width + 'px;"';
} else if ( self.options.height && typeof self.options.height == 'number' ) {
// if only height
dimensionsStyle = ' style="height:' + self.options.height + 'px;overflow:auto;"';
}
// Reset dimensions style (width and height) for certain types
if ( self.options.type == 'image' || self.options.type == 'video' || self.options.type == 'instagram' || self.options.fullscreen ) {
dimensionsStyle = '';
}
// if is touch
// this is a bug fix for iOS to allow regular click events on div elements.
var touchTrigger = '';
if ( self.is_touch() ) {
touchTrigger = ' style="cursor:pointer;"'
}
var build_markup = '<div class="modaal-wrapper modaal-' + self.options.type + animation_class + igClass + fullscreen_class + self.options.custom_class + '" id="' + self.scope.id + '"><div class="modaal-outer-wrapper"><div class="modaal-inner-wrapper"' + touchTrigger + '>';
// hide if video
if (self.options.type != 'video') {
build_markup += '<div class="modaal-container"' + dimensionsStyle + '>';
}
// add the guts of the content
build_markup += '<div class="' + wrap_class + ' modaal-focus" aria-hidden="false" aria-label="' + self.options.accessible_title + ' - ' + self.options.close_aria_label + '" role="dialog">';
// If it's inline type, we want to clone content instead of dropping it straight in
if (self.options.type == 'inline') {
build_markup += '<div class="modaal-content-container" role="document"></div>';
} else {
// Drop in the content if it's not inline
build_markup += content;
}
// close wrap_class
build_markup += '</div>' + self.scope.close_btn;
// hide if video
if (self.options.type != 'video') {
build_markup += '</div>';
}
// close off modaal-inner-wrapper
build_markup += '</div>';
// If type is image AND outer_controls is true: add gallery next and previous controls.
if (self.options.type == 'image' && self.options.outer_controls === true) {
build_markup += self.scope.prev_btn + self.scope.next_btn;
}
// close off modaal-wrapper
build_markup += '</div></div>';
// append ajax modal markup to dom
if ($('#' + self.scope.id + '_overlay').length < 1) {
self.dom.append(build_markup);
}
// if inline, clone content into space
if (self.options.type == 'inline') {
content.appendTo('#' + self.scope.id + ' .modaal-content-container');
}
// Trigger overlay show (which triggers modal show)
self.modaal_overlay('show');
},
// Create Basic Inline Modal
// ----------------------------------------------------------------
create_basic : function() {
var self = this;
var target = $(self.scope.source);
var content = '';
if (target.length) {
content = target.contents().detach();
target.empty();
} else {
content = 'Content could not be loaded. Please check the source and try again.';
}
// now push content into markup
self.build_modal(content);
},
// Create Instagram Modal
// ----------------------------------------------------------------
create_instagram : function() {
var self = this;
var id = self.options.instagram_id;
var content = '';
var error_msg = 'Instagram photo couldn\'t be loaded, please check the embed code and try again.';
self.build_modal('<div class="modaal-content-container' + ( self.options.loading_class != '' ? ' ' + self.options.loading_class : '' ) + '">' + self.options.loading_content + '</div>' );
// ID exists, is not empty null or undefined.
if ( id != '' && id !== null && id !== undefined ) {
// set up oembed url
var ig_url = 'https://api.instagram.com/oembed?url=http://instagr.am/p/' + id + '/';
$.ajax({
url: ig_url,
dataType: "jsonp",
cache: false,
success: function (data) {
// Create temp dom element from which we'll clone into the modaal instance. This is required to bypass the unusual small thumb issue instagram oembed was serving up
self.dom.append('<div id="temp-ig" style="width:0;height:0;overflow:hidden;">' + data.html + '</div>');
// Check if it has loaded once before.
// This is to stop the Embeds.process from throwing and error the first time it's being loaded.
// private_options are individual to a modaal_scope so will not work across multiple scopes when checking if true, only that one item.
if ( self.dom.attr('data-igloaded') ) {
window.instgrm.Embeds.process();
} else {
// first time it's loaded, let's set a new private option to use next time it's opened.
self.dom.attr('data-igloaded', 'true');
}
// now set location for new content
// timeout is required as well to bypass the unusual small thumb issue instagram oembed was serving up
var target = '#' + self.scope.id + ' .modaal-content-container';
if ( $(target).length > 0) {
setTimeout(function() {
$('#temp-ig').contents().clone().appendTo( target );
$('#temp-ig').remove();
}, 1000);
}
},
error: function() {
content = error_msg;
// now set location for new content
var target = $('#' + self.scope.id + ' .modaal-content-container');
if ( target.length > 0) {
target.removeClass( self.options.loading_class ).addClass( self.options.ajax_error_class );
target.html(content);
}
}
});
} else {
content = error_msg;
}
return false;
},
// Fetch Ajax Data
// ----------------------------------------------------------------
fetch_ajax : function(url) {
var self = this;
var content = '';
// If no accessible title, set it to 'Dialog Window'
if ( self.options.accessible_title == null ) {
self.options.accessible_title = 'Dialog Window'
}
if ( self.xhr !== null ){
self.xhr.abort();
self.xhr = null;
}
self.build_modal('<div class="modaal-content-container' + ( self.options.loading_class != '' ? ' ' + self.options.loading_class : '' ) + '">' + self.options.loading_content + '</div>' );
self.xhr = $.ajax(url, {
success: function(data) {
// content fetch is successful so push it into markup
var target = $('#' + self.scope.id).find('.modaal-content-container');
if ( target.length > 0){
target.removeClass( self.options.loading_class );
target.html( data );
self.options.ajax_success.call(self, target);
}
},
error: function( xhr ) {
// There were some errors so return an error message
if ( xhr.statusText == 'abort' ){
return;
}
var target = $('#' + self.scope.id + ' .modaal-content-container');
if ( target.length > 0){
target.removeClass( self.options.loading_class ).addClass( self.options.ajax_error_class );
target.html( 'Content could not be loaded. Please check the source and try again.' );
}
}
});
},
// Create Confirm Modal
// ----------------------------------------------------------------
create_confirm : function() {
var self = this;
var content;
content = '<div class="modaal-content-container">' +
'<h1 id="modaal-title">' + self.options.confirm_title + '</h1>' +
'<div class="modaal-confirm-content">' + self.options.confirm_content + '</div>' +
'<div class="modaal-confirm-wrap">' +
'<button type="button" class="modaal-confirm-btn modaal-ok" aria-label="Confirm">' + self.options.confirm_button_text + '</button>' +
'<button type="button" class="modaal-confirm-btn modaal-cancel" aria-label="Cancel">' + self.options.confirm_cancel_button_text + '</button>' +
'</div>' +
'</div>' +
'</div>';
// now push content into markup
self.build_modal(content);
},
// Create Image/Gallery Modal
// ----------------------------------------------------------------
create_image : function() {
var self = this;
var content;
var modaal_image_markup = '';
var gallery_total;
// If has group attribute
if ( self.$elem.is('[data-group]') || self.$elem.is('[rel]') ) {
// find gallery groups
var use_group = self.$elem.is('[data-group]');
var gallery_group = use_group ? self.$elem.attr('data-group') : self.$elem.attr('rel');
var gallery_group_items = use_group ? $('[data-group="' + gallery_group + '"]') : $('[rel="' + gallery_group + '"]');
// remove any previous active attribute to any in the group
gallery_group_items.removeAttr('data-gallery-active', 'is_active');
// add active attribute to the item clicked
self.$elem.attr('data-gallery-active', 'is_active');
// how many in the grouping are there (-1 to connect with each function starting with 0)
gallery_total = gallery_group_items.length - 1;
// prepare array for gallery data
var gallery = [];
// start preparing markup
modaal_image_markup = '<div class="modaal-gallery-item-wrap">';
// loop each grouping item and push it into our gallery array
gallery_group_items.each(function(i, item) {
// setup default content
var img_src = '';
var img_alt = '';
var img_description = '';
var img_active = false;
var img_src_error = false;
var data_modaal_desc = item.getAttribute('data-modaal-desc');
var data_item_active = item.getAttribute('data-gallery-active');
// if item has inline custom source, use that instead of href. Fall back to href if available.
if ( $(item).attr('data-modaal-content-source') ) {
img_src = $(item).attr('data-modaal-content-source');
} else if ( $(item).attr('href') ) {
img_src = $(item).attr('href');
} else if ( $(item).attr('src') ) {
img_src = $(item).attr('src');
} else {
img_src = 'trigger requires href or data-modaal-content-source attribute';
img_src_error = true;
}
// Does it have a modaal description
if ( data_modaal_desc != '' && data_modaal_desc !== null && data_modaal_desc !== undefined ) {
img_alt = data_modaal_desc;
img_description = '<div class="modaal-gallery-label"><span class="modaal-accessible-hide">Image ' + (i+1) + ' - </span>' + data_modaal_desc.replace(/</g, "<").replace(/>/g, ">") + '</div>'
} else {
img_description = '<div class="modaal-gallery-label"><span class="modaal-accessible-hide">Image ' + (i+1) + '</span></div>';
}
// is it the active item
if ( data_item_active ) {
img_active = true
}
// set new object for values we want
var gallery_item = {
'url': img_src,
'alt': img_alt,
'rawdesc': data_modaal_desc,
'desc': img_description,
'active': img_active,
'src_error': img_src_error
};
// push object into gallery array
gallery.push( gallery_item );
});
// now loop through all items in the gallery and build up the markup
for (var i = 0; i < gallery.length; i++) {
// Set default active class, then check if array item active is true and update string for class
var is_active = '';
var aria_label = gallery[i].rawdesc ? 'Image: ' + gallery[i].rawdesc : 'Image ' + i + ' no description';
if ( gallery[i].active ) {
is_active = ' ' + self.private_options.active_class;
}
// if gallery item has source error, output message rather than undefined image
var image_output = gallery[i].src_error ? gallery[i].url : '<img src="' + gallery[i].url + '" alt=" " style="width:100%">';
// for each item build up the markup
modaal_image_markup += '<div class="modaal-gallery-item gallery-item-' + i + is_active + '" aria-label="' + aria_label + '">' +
image_output + gallery[i].desc +
'</div>';
}
// Close off the markup for the gallery
modaal_image_markup += '</div>';
// Add next and previous buttons if outside
if (self.options.outer_controls != true) {
modaal_image_markup += self.scope.prev_btn + self.scope.next_btn;
}
} else {
// This is only a single gallery item so let's grab the necessary values
// define the source, check if content_source option exists, and use that or fall back to href.
var this_img_src;
var img_src_error = false;
if ( self.$elem.attr('data-modaal-content-source') ) {
this_img_src = self.$elem.attr('data-modaal-content-source');
} else if ( self.$elem.attr('href') ) {
this_img_src = self.$elem.attr('href');
} else if ( self.$elem.attr('src') ) {
this_img_src = self.$elem.attr('src');
} else {
this_img_src = 'trigger requires href or data-modaal-content-source attribute';
img_src_error = true;
}
var this_img_alt_txt = '';
var this_img_alt = '';
var aria_label = '';
if ( self.$elem.attr('data-modaal-desc') ) {
aria_label = self.$elem.attr('data-modaal-desc');
this_img_alt_txt = self.$elem.attr('data-modaal-desc');
this_img_alt = '<div class="modaal-gallery-label"><span class="modaal-accessible-hide">Image - </span>' + this_img_alt_txt.replace(/</g, "<").replace(/>/g, ">") + '</div>';
} else {
aria_label = "Image with no description";
}
// if image item has source error, output message rather than undefined image
var image_output = img_src_error ? this_img_src : '<img src="' + this_img_src + '" alt=" " style="width:100%">';
// build up the html
modaal_image_markup = '<div class="modaal-gallery-item is_active" aria-label="' + aria_label + '">' +
image_output + this_img_alt +
'</div>';
}
// Update content variable
content = modaal_image_markup;
// now push content into markup
self.build_modal(content);
// setup next & prev buttons
if ( $('.modaal-gallery-item.is_active').is('.gallery-item-0') ) {
$('.modaal-gallery-prev').hide();
}
if ( $('.modaal-gallery-item.is_active').is('.gallery-item-' + gallery_total) ) {
$('.modaal-gallery-next').hide();
}
},
// Gallery Change Image
// ----------------------------------------------------------------
gallery_update : function(direction) {
var self = this;
var this_gallery = $('#' + self.scope.id);
var this_gallery_item = this_gallery.find('.modaal-gallery-item');
var this_gallery_total = this_gallery_item.length - 1;
// if single item, don't proceed
if ( this_gallery_total == 0 ) {
return false;
}
var prev_btn = this_gallery.find('.modaal-gallery-prev'),
next_btn = this_gallery.find('.modaal-gallery-next');
var duration = 250;
var new_img_w = 0,
new_img_h = 0;
// CB: Before image change
var current_item = this_gallery.find( '.modaal-gallery-item.' + self.private_options.active_class ),
incoming_item = ( direction == 'next' ? current_item.next( '.modaal-gallery-item' ) : current_item.prev( '.modaal-gallery-item' ) );
self.options.before_image_change.call(self, current_item, incoming_item);
// stop change if at start of end
if ( direction == 'prev' && this_gallery.find('.gallery-item-0').hasClass('is_active') ) {
return false;
} else if ( direction == 'next' && this_gallery.find('.gallery-item-' + this_gallery_total).hasClass('is_active') ) {
return false;
}
// lock dimensions
current_item.stop().animate({
opacity: 0
}, duration, function(){
// Move to appropriate image
incoming_item.addClass('is_next').css({
'position': 'absolute',
'display': 'block',
'opacity': 0
});
// Collect doc width
var doc_width = $(document).width();
var width_threshold = doc_width > 1140 ? 280 : 50;
// start toggle to 'is_next'
new_img_w = this_gallery.find('.modaal-gallery-item.is_next').width();
new_img_h = this_gallery.find('.modaal-gallery-item.is_next').height();
var new_natural_w = this_gallery.find('.modaal-gallery-item.is_next img').prop('naturalWidth');
var new_natural_h = this_gallery.find('.modaal-gallery-item.is_next img').prop('naturalHeight');
// if new image is wider than doc width
if ( new_natural_w > (doc_width - width_threshold) ) {
// set new width just below doc width
new_img_w = doc_width - width_threshold;
// Set temp widths so we can calulate the correct height;
this_gallery.find('.modaal-gallery-item.is_next').css({ 'width': new_img_w });
this_gallery.find('.modaal-gallery-item.is_next img').css({ 'width': new_img_w });
// Set new height variable
new_img_h = this_gallery.find('.modaal-gallery-item.is_next').find('img').height();
} else {
// new img is not wider than screen, so let's set the new dimensions
new_img_w = new_natural_w;
new_img_h = new_natural_h;
}
// resize gallery region
this_gallery.find('.modaal-gallery-item-wrap').stop().animate({
'width': new_img_w,
'height': new_img_h
}, duration, function() {
// hide old active image
current_item.removeClass(self.private_options.active_class + ' ' + self.options.gallery_active_class).removeAttr('style');
current_item.find('img').removeAttr('style');
// show new image
incoming_item.addClass(self.private_options.active_class + ' ' + self.options.gallery_active_class).removeClass('is_next').css('position','');
// animate in new image (now has the normal is_active class
incoming_item.stop().animate({
opacity: 1
}, duration, function(){
$(this).removeAttr('style').css({
'width': '100%'
});
$(this).find('img').css('width', '100%');
// remove dimension lock
this_gallery.find('.modaal-gallery-item-wrap').removeAttr('style');
// CB: After image change
self.options.after_image_change.call( self, incoming_item );
});
// Focus on the new gallery item
this_gallery.find('.modaal-gallery-item').removeAttr('tabindex');
this_gallery.find('.modaal-gallery-item.' + self.private_options.active_class + '').attr('tabindex', '0').focus();
// hide/show next/prev
if ( this_gallery.find('.modaal-gallery-item.' + self.private_options.active_class).is('.gallery-item-0') ) {
prev_btn.stop().animate({
opacity: 0
}, 150, function(){
$(this).hide();
});
} else {
prev_btn.stop().css({
'display': 'block',
'opacity': prev_btn.css('opacity')
}).animate({
opacity: 1
}, 150);
}
if ( this_gallery.find('.modaal-gallery-item.' + self.private_options.active_class).is('.gallery-item-' + this_gallery_total) ) {
next_btn.stop().animate({
opacity: 0
}, 150, function(){
$(this).hide();
});
} else {
next_btn.stop().css({
'display': 'block',
'opacity': prev_btn.css('opacity')
}).animate({
opacity: 1
}, 150);
}
});
});
},
// Create Video Modal
// ----------------------------------------------------------------
create_video : function(url) {
var self = this;
var content;
// video markup
content = '<iframe src="' + url + '" class="modaal-video-frame" frameborder="0" allowfullscreen></iframe>';
// now push content into markup
self.build_modal('<div class="modaal-video-container">' + content + '</div>');
},
// Create iFrame Modal
// ----------------------------------------------------------------
create_iframe : function(url) {
var self = this;
var content;
if ( self.options.width !== null || self.options.width !== undefined || self.options.height !== null || self.options.height !== undefined ) {
// video markup
content = '<iframe src="' + url + '" class="modaal-iframe-elem" frameborder="0" allowfullscreen></iframe>';
} else {
content = '<div class="modaal-content-container">Please specify a width and height for your iframe</div>';
}
// now push content into markup
self.build_modal(content);
},
// Open Modaal
// ----------------------------------------------------------------
modaal_open : function() {
var self = this;
var modal_wrapper = $( '#' + self.scope.id );
var animation_type = self.options.animation;
if (animation_type === 'none' ){
modal_wrapper.removeClass('modaal-start_none');
self.options.after_open.call(self, modal_wrapper);
}
// Open with fade
if (animation_type === 'fade') {
modal_wrapper.removeClass('modaal-start_fade');
}
// Open with slide down
if (animation_type === 'slide-down') {
modal_wrapper.removeClass('modaal-start_slide_down');
}
var focusTarget = modal_wrapper;
// Switch focusTarget tabindex (switch from other modal if exists)
$('.modaal-wrapper *[tabindex=0]').removeAttr('tabindex');
if ( self.options.type == 'image' ) {
focusTarget = $('#' + self.scope.id).find('.modaal-gallery-item.' + self.private_options.active_class);
} else if ( modal_wrapper.find('.modaal-iframe-elem').length ) {
focusTarget = modal_wrapper.find('.modaal-iframe-elem');
} else if ( modal_wrapper.find('.modaal-video-wrap').length ) {
focusTarget = modal_wrapper.find('.modaal-video-wrap');
} else {
focusTarget = modal_wrapper.find('.modaal-focus');
}
// now set the focus
focusTarget.attr('tabindex', '0').focus();
// Run after_open
if (animation_type !== 'none') {
// CB: after_open
setTimeout(function() {
self.options.after_open.call(self, modal_wrapper)
}, self.options.after_callback_delay);
}
},
// Close Modal
// ----------------------------------------------------------------
modaal_close : function() {
var self = this;
var modal_wrapper = $( '#' + self.scope.id );
// CB: before_close
self.options.before_close.call(self, modal_wrapper);
if (self.xhr !== null){
self.xhr.abort();
self.xhr = null;
}
// Now we close the modal
if (self.options.animation === 'none' ){
modal_wrapper.addClass('modaal-start_none');
}
// Close with fade
if (self.options.animation === 'fade') {
modal_wrapper.addClass('modaal-start_fade');
}
// Close with slide up (using initial slide down)
if (self.options.animation === 'slide-down') {
modal_wrapper.addClass('modaal-start_slide_down');
}
// CB: after_close and remove
setTimeout(function() {
// clone inline content back to origin place
if (self.options.type == 'inline') {
$('#' + self.scope.id + ' .modaal-content-container').contents().detach().appendTo( self.scope.source )
}
// remove markup from dom
modal_wrapper.remove();
// CB: after_close
self.options.after_close.call(self);
// scope is now closed
self.scope.is_open = false;
}, self.options.after_callback_delay);
// Call overlay hide
self.modaal_overlay('hide');
// Roll back to last focus state before modal open. If was closed programmatically, this might not be set