/
index.html
829 lines (760 loc) · 44.8 KB
/
index.html
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
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>HTML5 <x-knob> rotating knob web component</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<!--
Required for browsers that do not yet support the latest technologies.
http://webcomponents.org/
https://github.com/webcomponents/webcomponentsjs/releases
-->
<script type="text/javascript">
if (!document.registerElement) {
document.writeln(decodeURI('%3Cscript%20src=%22https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/0.7.12/webcomponents.min.js%22%20type=%22text/javascript%22%3E%3C/script%3E'));
}
</script>
<script src="xknob.js" type="text/javascript" async></script>
<link href="xknob.css" type="text/css" rel="stylesheet">
<style type="text/css">
html, body {
background: white;
color: black;
}
h2 {
border-top: 1px solid black;
margin: 2em 0 1ex;
}
:target {
background: #eeeeec;
}
table#bigdemo {
border-collapse: collapse;
}
table#bigdemo td > label {
display: block;
}
table#bigdemo th {
text-align: right;
font: inherit;
padding-left: 0.5em;
padding-right: 0.5em;
}
#big_container {
position: relative;
padding: 0;
}
#big_bg {
display: block;
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
width: 100%;
height: 100%;
}
#big {
display: block;
position: relative;
width: 13em;
height: 13em;
background-repeat: no-repeat;
background-size: contain;
background-position: center center;
}
#sizes x-knob {
outline: 1px blue dotted;
}
#sizes x-knob:nth-child(1) { width: 1em; height: 1em; }
#sizes x-knob:nth-child(2) { width: 2em; height: 2em; }
#sizes x-knob:nth-child(3) { width: 4em; height: 2em; }
#sizes x-knob:nth-child(4) { width: 2em; height: 4em; }
#sizes x-knob:nth-child(5) { width: 4em; height: 4em; }
#clock-example {
display: flex;
flex-direction: row;
flex-wrap: wrap;
justify-content: flex-start;
align-items: center;
}
#clock-block {
width: 16em;
height: 16em;
position: relative;
flex: 0 0 auto;
margin-right: 2em;
}
#clock-output {
flex: 1 1 auto;
font-size: 3em;
width: 5em;
}
#clock-block > svg,
#clock-block > x-knob {
display: block;
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
width: 100%;
height: 100%;
}
</style>
<style type="text/css" shim-shadowdom>
/* Requires shim-shadowdom and webcomponentsjs in Firefox (due to lack of ::shadow support). https://github.com/Polymer/docs/issues/269 */
#transition x-knob::shadow .knob_gfx { transition: 125ms transform; }
</style>
<svg style="display: none;">
<!-- Most of the colors are from Tango palette -->
<defs id="sample_gfx">
<symbol id="circle-with-dot" viewBox="-6 -6 12 12">
<circle cx="0" cy="0" r="5.875" stroke="#2e3436" fill="#babdb6" stroke-width="0.25"/>
<circle cx="0" cy="-3.75" r="0.75" stroke="none" fill="#2e3436"/>
</symbol>
<symbol id="long-stick" viewBox="-6 -6 12 12">
<circle cx="0" cy="0" r="2.5" stroke="#2e3436" fill="#888a85" stroke-width="0.25"/>
<rect x="-1" y="-5" rx="1" ry="1" width="2" height="10" stroke="#2e3436" fill="#babdb6" stroke-width="0.25"/>
<line x1="0" y1="-3.75" x2="0" y2="-4.5" stroke="#2e3436" stroke-width="0.5px" stroke-linecap="round"/>
</symbol>
<symbol id="arrow" viewBox="-3 -3 6 6">
<path fill="#2e3436" d="M0,-3 l2,3 h-1 v2.5 h-2 v-2.5 h-1 z"/>
</symbol>
<symbol id="arrow-inside-circle" viewBox="-3 -3 6 6">
<circle cx="0" cy="0" r="3" fill="#fce94f"/>
<path fill="#2e3436" d="M0,-3 l2,3 h-1 v2.5 h-2 v-2.5 h-1 z"/>
</symbol>
<symbol id="arrow-too-big" viewBox="-3 -3 6 6">
<circle cx="0" cy="0" r="3" fill="#fce94f"/>
<path fill="#a40000" d="M0,-3 l3,3 h-1 v3 h-4 v-3 h-1 z"/>
</symbol>
<symbol id="transparent-circle" viewBox="-4 -4 8 8">
<!-- A transparent SVG object still receives pointer events. -->
<circle cx="0" cy="0" r="4" opacity="0"/>
<path fill="#2e3436" d="M0,-4 l0.5,5 h-1 z"/>
</symbol>
<symbol id="chromatic-wheel" viewBox="-4 -4 8 8">
<!-- Inspired by https://openclipart.org/detail/181641/chromatic-wheel-1 -->
<!-- Generated using:
var r = 4;
var steps = 36;
var angle = Math.PI * 2 / steps / 2;
var a1 = [0, -(r - 1)];
var a2 = [0, -r];
var rotate = function(p, angle) { return [p[0] * Math.cos(angle) - p[1] * Math.sin(angle), p[0] * Math.sin(angle) + p[1] * Math.cos(angle)]; };
var points = [
rotate(a1, angle),
rotate(a2, angle),
rotate(a2, -angle),
rotate(a1, -angle),
];
var d = 'M' + points.map(function(p){return p.join(',');}).join(' ') + ' z';
-->
<g visibility="hidden">
<path id="circle-section" d="M-0.2614672282429745,-2.988584094275237 -0.34862297099063266,-3.984778792366982 0.34862297099063266,-3.984778792366982 0.2614672282429745,-2.988584094275237 z"/>
</g>
<!-- Any referenced element inside this symbol must be defined also inside it, otherwise <x-knob> won't copy it. -->
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(0, 100%, 50%)" transform="rotate(0)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(10, 100%, 50%)" transform="rotate(10)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(20, 100%, 50%)" transform="rotate(20)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(30, 100%, 50%)" transform="rotate(30)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(40, 100%, 50%)" transform="rotate(40)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(50, 100%, 50%)" transform="rotate(50)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(60, 100%, 50%)" transform="rotate(60)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(70, 100%, 50%)" transform="rotate(70)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(80, 100%, 50%)" transform="rotate(80)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(90, 100%, 50%)" transform="rotate(90)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(100, 100%, 50%)" transform="rotate(100)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(110, 100%, 50%)" transform="rotate(110)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(120, 100%, 50%)" transform="rotate(120)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(130, 100%, 50%)" transform="rotate(130)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(140, 100%, 50%)" transform="rotate(140)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(150, 100%, 50%)" transform="rotate(150)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(160, 100%, 50%)" transform="rotate(160)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(170, 100%, 50%)" transform="rotate(170)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(180, 100%, 50%)" transform="rotate(180)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(190, 100%, 50%)" transform="rotate(190)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(200, 100%, 50%)" transform="rotate(200)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(210, 100%, 50%)" transform="rotate(210)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(220, 100%, 50%)" transform="rotate(220)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(230, 100%, 50%)" transform="rotate(230)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(240, 100%, 50%)" transform="rotate(240)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(250, 100%, 50%)" transform="rotate(250)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(260, 100%, 50%)" transform="rotate(260)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(270, 100%, 50%)" transform="rotate(270)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(280, 100%, 50%)" transform="rotate(280)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(290, 100%, 50%)" transform="rotate(290)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(300, 100%, 50%)" transform="rotate(300)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(310, 100%, 50%)" transform="rotate(310)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(320, 100%, 50%)" transform="rotate(320)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(330, 100%, 50%)" transform="rotate(330)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(340, 100%, 50%)" transform="rotate(340)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(350, 100%, 50%)" transform="rotate(350)"/>
</symbol>
<symbol id="chromatic-wheel-labeled" viewBox="-5 -5 10 10">
<g visibility="hidden">
<path id="circle-section" d="M-0.2614672282429745,-2.988584094275237 -0.34862297099063266,-3.984778792366982 0.34862297099063266,-3.984778792366982 0.2614672282429745,-2.988584094275237 z"/>
</g>
<!-- Any referenced element inside this symbol must be defined also inside it, otherwise <x-knob> won't copy it. -->
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(0, 100%, 50%)" transform="rotate(0)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(10, 100%, 50%)" transform="rotate(10)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(20, 100%, 50%)" transform="rotate(20)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(30, 100%, 50%)" transform="rotate(30)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(40, 100%, 50%)" transform="rotate(40)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(50, 100%, 50%)" transform="rotate(50)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(60, 100%, 50%)" transform="rotate(60)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(70, 100%, 50%)" transform="rotate(70)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(80, 100%, 50%)" transform="rotate(80)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(90, 100%, 50%)" transform="rotate(90)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(100, 100%, 50%)" transform="rotate(100)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(110, 100%, 50%)" transform="rotate(110)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(120, 100%, 50%)" transform="rotate(120)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(130, 100%, 50%)" transform="rotate(130)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(140, 100%, 50%)" transform="rotate(140)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(150, 100%, 50%)" transform="rotate(150)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(160, 100%, 50%)" transform="rotate(160)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(170, 100%, 50%)" transform="rotate(170)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(180, 100%, 50%)" transform="rotate(180)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(190, 100%, 50%)" transform="rotate(190)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(200, 100%, 50%)" transform="rotate(200)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(210, 100%, 50%)" transform="rotate(210)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(220, 100%, 50%)" transform="rotate(220)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(230, 100%, 50%)" transform="rotate(230)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(240, 100%, 50%)" transform="rotate(240)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(250, 100%, 50%)" transform="rotate(250)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(260, 100%, 50%)" transform="rotate(260)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(270, 100%, 50%)" transform="rotate(270)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(280, 100%, 50%)" transform="rotate(280)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(290, 100%, 50%)" transform="rotate(290)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(300, 100%, 50%)" transform="rotate(300)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(310, 100%, 50%)" transform="rotate(310)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(320, 100%, 50%)" transform="rotate(320)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(330, 100%, 50%)" transform="rotate(330)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(340, 100%, 50%)" transform="rotate(340)"/>
<use xlink:href="#circle-section" x="0" y="0" fill="hsl(350, 100%, 50%)" transform="rotate(350)"/>
<g text-anchor="middle" dominant-baseline="central" font-family="Arial, sans-serif" font-size="0.4px">
<text x="0" y="-4.5" transform="rotate(0)">0</text>
<text x="0" y="-4.5" transform="rotate(10)">10</text>
<text x="0" y="-4.5" transform="rotate(20)">20</text>
<text x="0" y="-4.5" transform="rotate(30)">30</text>
<text x="0" y="-4.5" transform="rotate(40)">40</text>
<text x="0" y="-4.5" transform="rotate(50)">50</text>
<text x="0" y="-4.5" transform="rotate(60)">60</text>
<text x="0" y="-4.5" transform="rotate(70)">70</text>
<text x="0" y="-4.5" transform="rotate(80)">80</text>
<text x="0" y="-4.5" transform="rotate(90)">90</text>
<text x="0" y="-4.5" transform="rotate(100)">100</text>
<text x="0" y="-4.5" transform="rotate(110)">110</text>
<text x="0" y="-4.5" transform="rotate(120)">120</text>
<text x="0" y="-4.5" transform="rotate(130)">130</text>
<text x="0" y="-4.5" transform="rotate(140)">140</text>
<text x="0" y="-4.5" transform="rotate(150)">150</text>
<text x="0" y="-4.5" transform="rotate(160)">160</text>
<text x="0" y="-4.5" transform="rotate(170)">170</text>
<text x="0" y="-4.5" transform="rotate(180)">180</text>
<text x="0" y="-4.5" transform="rotate(190)">190</text>
<text x="0" y="-4.5" transform="rotate(200)">200</text>
<text x="0" y="-4.5" transform="rotate(210)">210</text>
<text x="0" y="-4.5" transform="rotate(220)">220</text>
<text x="0" y="-4.5" transform="rotate(230)">230</text>
<text x="0" y="-4.5" transform="rotate(240)">240</text>
<text x="0" y="-4.5" transform="rotate(250)">250</text>
<text x="0" y="-4.5" transform="rotate(260)">260</text>
<text x="0" y="-4.5" transform="rotate(270)">270</text>
<text x="0" y="-4.5" transform="rotate(280)">280</text>
<text x="0" y="-4.5" transform="rotate(290)">290</text>
<text x="0" y="-4.5" transform="rotate(300)">300</text>
<text x="0" y="-4.5" transform="rotate(310)">310</text>
<text x="0" y="-4.5" transform="rotate(320)">320</text>
<text x="0" y="-4.5" transform="rotate(330)">330</text>
<text x="0" y="-4.5" transform="rotate(340)">340</text>
<text x="0" y="-4.5" transform="rotate(350)">350</text>
</g>
</symbol>
<!-- Driving wheel clipart from https://openclipart.org/detail/172010/driving-wheel -->
<!-- Compatibility results:
* As <image>:
* Works fine in Chrome 44. Square-shaped clickable area.
* Almost works in Firefox 40. Square-shaped tinted background instead of fully transparent.
* As <use>:
* Does not work in Chrome 44. Nothing is displayed. Unsure about the reason.
* Works perfectly in Firefox 40. Precise clickable area.
-->
<symbol id="driving-wheel-as-image" viewBox="0 0 1 1">
<image xlink:href="drivingwheel.svg" x="0" y="0" width="1" height="1"/>
</symbol>
<symbol id="driving-wheel-as-use" viewBox="0 0 1 1">
<!-- https://css-tricks.com/svg-use-external-source/ -->
<use xlink:href="drivingwheel.svg#drivingwheel" x="0" y="0" width="1" height="1"/>
</symbol>
<!-- Clock hands from http://www.3quarks.com/en/SVGClock/ http://www.3quarks.com/images/svg/station-clock.svg -->
<symbol id="hourHandSiemens" viewBox="0 0 200 200">
<g style="fill:#222">
<rect x="97.3" y="65" width="5.4" height="35" style="stroke:none"/>
<circle cx="97.3" cy="58.5" r="9" style="stroke:none"/>
<circle cx="102.7" cy="58.5" r="9" style="stroke:none"/>
<path d="M 88.3,58.5 Q 88.3,52 100,37.5 Q 111.7,52 111.7,58.5 Z" style="stroke:none"/>
<path d="M 93.5,123 Q 100,125.5 106.5,123 Q 103,116 102.7,100 L 97.3,100 Q 97.3,116 93.5,123 Z" style="stroke:none"/>
<circle cx="100" cy="100" r="7.4" style="stroke:none"/>
</g>
</symbol>
<symbol id="minuteHandSiemens" viewBox="0 0 200 200">
<g style="fill:#222">
<polygon points="95.3,49 99.5,2 100.5,2 104.7,49 102.7,100 97.3,100" style="stroke:none"/>
<path d="M 93.5,123 Q 100,125.5 106.5,123 Q 103,116 102.7,100 L 97.3,100 Q 97.3,116 93.5,123 Z" style="stroke:none"/>
<circle cx="100" cy="100" r="7" style="stroke:none"/>
</g>
</symbol>
<symbol id="secondHandDIN41071.2" viewBox="0 0 200 200">
<g style="fill:#ad1a14; stroke:#ad1a14">
<polygon points="98.8,11 100,9.8 101.2,11 101.6,42 98.4,42" style="stroke:none"/>
<polygon points="98.1,58 101.9,58 102.5,122 97.5,122" style="stroke:none"/>
<circle cx="100" cy="50" r="8.5" style="fill:none; stroke-width:6.5"/>
</g>
</symbol>
</defs>
<defs id="sample_bg">
<symbol id="bg-green" viewBox="0 0 1 1">
<rect x="0" y="0" width="1" height="1" fill="#8ae234"/>
</symbol>
<symbol id="bg-green-circle" viewBox="-1 -1 2 2">
<circle cx="0" cy="0" r="1" fill="#8ae234"/>
</symbol>
<symbol id="bg-radial-lines-2" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(180)"/>
</symbol>
<symbol id="bg-radial-lines-3" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(120)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(240)"/>
</symbol>
<symbol id="bg-radial-lines-4" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 90)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(180)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(270)"/>
</symbol>
<symbol id="bg-radial-lines-5" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 72)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(144)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(216)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(288)"/>
</symbol>
<symbol id="bg-radial-lines-6" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 60)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(120)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(180)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(240)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(300)"/>
</symbol>
<symbol id="bg-radial-lines-8" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 45)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 90)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(135)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(180)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(225)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(270)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(315)"/>
</symbol>
<symbol id="bg-radial-lines-12" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 30)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 60)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 90)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(120)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(150)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(180)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(210)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(240)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(270)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(300)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(330)"/>
</symbol>
<symbol id="bg-radial-lines-24" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 15)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 30)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 45)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 60)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 75)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 90)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(105)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(120)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(135)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(150)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(165)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(180)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(195)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(210)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(225)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(240)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(255)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(270)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(285)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(300)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(315)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(330)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(345)"/>
</symbol>
<symbol id="bg-radial-lines-36" viewBox="-1 -1 2 2">
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 0)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 10)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 20)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 30)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 40)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 50)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 60)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 70)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 80)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate( 90)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(100)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(110)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(120)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(130)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(140)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(150)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(160)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(170)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(180)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(190)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(200)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(210)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(220)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(230)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(240)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(250)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(260)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(270)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(280)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(290)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(300)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(310)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(320)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(330)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(340)"/>
<line x1="0" y1="0" x2="0" y2="-1" stroke="#2e3436" stroke-width="0.0078125px" transform="rotate(350)"/>
</symbol>
</defs>
</svg>
</head>
<body>
<h1><code><x-knob></code> Web Component</h1>
<p><a href="https://github.com/denilsonsa/html5-knob">View this project on GitHub!</a></p>
<script type="text/javascript">
if (window.WebComponents) {
document.writeln('<p>Note: <code>document.registerElement()</code> not detected, enabling the <a href="https://github.com/webcomponents/webcomponentsjs/releases">webcomponentsjs</a> polyfill.</p>');
}
</script>
<h2>Playaround demo</h2>
<p>A demo with a single <code><x-knob></code> element with all attributes exposed. It's easy to get a feel on how it works by just interacting with this demo.</p>
<!-- I'm sorry I'm using a table for layout. But my intent is to demonstrate the knob, not the table. -->
<table id="bigdemo">
<tr>
<td rowspan="9" id="big_container">
<!-- Just a background. -->
<svg id="big_bg" viewBox="0 0 1 1"></svg>
<!-- This is the main element! -->
<x-knob id="big"></x-knob>
</td>
<th><label for="bigdivisions"><code>divisions</code></label></th>
<td><input type="number" id="bigdivisions" min="0" step="1" value="0" title="Accepts integers starting from 2. Any other value is ignored."></td>
</tr>
<tr>
<th><label for="bigmin"><code>min</code></label></th>
<td><input type="number" id="bigmin" step="any" value="" title="Any float, or null/empty for not having a limit."></td>
</tr>
<tr>
<th><label for="bigmax"><code>max</code></label></th>
<td><input type="number" id="bigmax" step="any" value="" title="Any float, or null/empty for not having a limit."></td>
</tr>
<tr>
<th></th>
<td><label><input type="checkbox" id="bigdisabled"> <code>disabled</code></td>
</tr>
<tr>
<th></th>
<td><label><input type="checkbox" id="bigreadonly"> <code>readonly</code></td>
</tr>
<tr>
<th><label for="bigsvgsymbolid"><code>svgsymbolid</code></label></th>
<td><select id="bigsvgsymbolid">
<option value="" selected><empty></option>
</select>
<script type="text/javascript">
(function(){
// Filling up the <select> with all available sample graphics.
var select = document.getElementById('bigsvgsymbolid');
Array.prototype.forEach.call(
document.querySelectorAll('#sample_gfx symbol[id]'),
function(curr, index, arr) {
var option = document.createElement('option');
var id = curr.getAttribute('id');
option.textContent = id;
option.setAttribute('value', id);
select.appendChild(option);
}
);
})();
</script></td>
</tr>
<tr>
<th><label for="bigbackground">background</label></th>
<td><select id="bigbackground">
<option value="" selected>none</option>
</select>
<script type="text/javascript">
(function(){
// Filling up the <select> with all available sample backgrounds.
var select = document.getElementById('bigbackground');
Array.prototype.forEach.call(
document.querySelectorAll('#sample_bg symbol[id]'),
function(curr, index, arr) {
var option = document.createElement('option');
var id = curr.getAttribute('id');
option.textContent = id;
option.setAttribute('value', id);
select.appendChild(option);
}
);
})();
</script></td>
</tr>
<tr>
<th></th>
<td><label><input type="checkbox" id="bigpadding"> Add padding</td>
</tr>
<tr>
<th><label for="bigvalue"><code>value</code></label></th>
<td><input type="number" id="bigvalue" step="any" value=""></td>
</tr>
</table>
<script type="text/javascript">
document.getElementById('bigdemo').addEventListener('input', function(ev) {
if (['bigdivisions', 'bigmin', 'bigmax', 'bigsvgsymbolid', 'bigvalue'].indexOf(ev.target.id) > -1) {
var attr = ev.target.id.replace('big', '');
document.getElementById('big')[attr] = ev.target.value;
} else if (ev.target.id === 'bigbackground') {
document.getElementById('big_bg').innerHTML = '<use xlink:href="#' + ev.target.value + '" x="0" y="0" width="1" height="1"/>';
}
document.getElementById('bigvalue').value = document.getElementById('big').value;
});
document.getElementById('bigpadding').addEventListener('click', function(ev) {
document.getElementById('big').style.padding = ev.target.checked ? '1em' : '0';
});
document.getElementById('bigdisabled').addEventListener('click', function(ev) {
document.getElementById('big').disabled = ev.target.checked;
});
document.getElementById('bigreadonly').addEventListener('click', function(ev) {
document.getElementById('big').readonly = ev.target.checked;
});
// 'input' event does not fire for <select> in Firefox.
// This (ugly) workaround will cause the 'input' event to fire twice for <select> in other browsers.
Array.prototype.forEach.call(
document.querySelectorAll('select'),
function(curr, index, arr) {
curr.addEventListener('change', function(ev) {
curr.dispatchEvent(new Event('input', {
'bubbles': ev.bubbles,
'cancelable': ev.cancelable
}));
});
}
);
</script>
<h2>Interactive clock demo</h2>
<p>A more realistic and complex demonstration. Click/touch each clock hand and drag them around. The clock graphic is from <a href="http://www.3quarks.com/en/SVGClock/">"SVG Railway Station Clock" by Rüdiger Appel</a>. Each hand is a <code><x-knob></code> element. (Known issue: the event handlers written for this demo make it impossible to change the hours hand by keyboard.)</p>
<p id="clock-example">
<span id="clock-block">
<!-- Clock from http://www.3quarks.com/en/SVGClock/ http://www.3quarks.com/images/svg/station-clock.svg -->
<svg viewBox="0 0 200 200">
<defs>
<!-- hour stroke (DIN 41091.4) -->
<symbol id="hourStrokeDIN41091.4">
<rect x="97" y="0" width="6" height="7"/>
</symbol>
<!-- minute stroke (DIN 41091.4) -->
<symbol id="minuteStrokeDIN41091.4">
<rect x="98.75" y="0" width="2.5" height="7"/>
</symbol>
<!-- five minutes strokes (DIN 41091.4) -->
<symbol id="fiveMinutesStrokesDIN41091.4">
<use xlink:href="#hourStrokeDIN41091.4"/>
<use xlink:href="#minuteStrokeDIN41091.4" transform="rotate( 6, 100, 100)"/>
<use xlink:href="#minuteStrokeDIN41091.4" transform="rotate(12, 100, 100)"/>
<use xlink:href="#minuteStrokeDIN41091.4" transform="rotate(18, 100, 100)"/>
<use xlink:href="#minuteStrokeDIN41091.4" transform="rotate(24, 100, 100)"/>
</symbol>
<!-- quarter strokes (DIN 41091.4) -->
<symbol id="quarterStrokesDIN41091.4">
<use xlink:href="#fiveMinutesStrokesDIN41091.4"/>
<use xlink:href="#fiveMinutesStrokesDIN41091.4" transform="rotate(30, 100, 100)"/>
<use xlink:href="#fiveMinutesStrokesDIN41091.4" transform="rotate(60, 100, 100)"/>
</symbol>
<!-- visible dial circle -->
<clipPath id="dialCircle">
<circle cx="100" cy="100" r="100"/>
</clipPath>
</defs>
<g clip-path="url(#dialCircle)">
<!-- background -->
<g id="background" style="fill:none">
<circle cx="100" cy="100" r="100" style="stroke:none"/>
</g>
<g id="dial" style="fill:#333">
<g id="dialDIN41091.4">
<use xlink:href="#quarterStrokesDIN41091.4" style="stroke:none"/>
<use xlink:href="#quarterStrokesDIN41091.4" style="stroke:none" transform="rotate( 90, 100, 100)"/>
<use xlink:href="#quarterStrokesDIN41091.4" style="stroke:none" transform="rotate(180, 100, 100)"/>
<use xlink:href="#quarterStrokesDIN41091.4" style="stroke:none" transform="rotate(270, 100, 100)"/>
<g text-anchor="middle" letter-spacing="-2" font-family="sans-serif" font-size="24px" style="stroke:none">
<text x="100" y="30">12</text>
<text x="143" y="41">1</text>
<text x="171" y="70">2</text>
<text x="182" y="109">3</text>
<text x="171" y="147">4</text>
<text x="142" y="176">5</text>
<text x="100" y="188">6</text>
<text x="60" y="176">7</text>
<text x="30" y="147">8</text>
<text x="18" y="109">9</text>
<text x="34" y="70">10</text>
<text x="61" y="41">11</text>
</g>
</g>
</g>
</g>
</svg>
<x-knob id="clock-seconds" divisions="60" value="0" svgsymbolid="secondHandDIN41071.2"></x-knob>
<x-knob id="clock-minutes" divisions="60" value="0" svgsymbolid="minuteHandSiemens"></x-knob>
<x-knob id="clock-hours" divisions="0" value="0" svgsymbolid="hourHandSiemens"></x-knob>
<svg viewBox="0 0 200 200" style="pointer-events: none;">
<!-- axis cover -->
<g id="axisCover" style="pointer-events: auto;">
<circle id="axisCoverCircle" cx="100" cy="100" r="10" style="stroke:none"/>
</g>
</svg>
</span>
<span id="clock-output">
The time is <output id="clock-hours-output">0</output> hours, <output id="clock-minutes-output">0</output> minutes, <output id="clock-seconds-output">0</output> seconds.
</span>
</p>
<script type="text/javascript">
// If you want to avoid drifiting, try the following algorithm:
//
// 1. Store hours/minutes/seconds in some variable.
// 2. At `input` event handler, never update the knob that triggered the event.
// 3. Instead of clamping the current knob value to 0..1 range, don't change it.
// 4. When calculating the overflow/underflow of seconds or minutes, use the last saved value plus the knob value.
// 5. At `change` event handler, update the hours/minutes/seconds variable.
document.getElementById('clock-example').addEventListener('input', function(ev) {
var hand_seconds = document.getElementById('clock-seconds');
var hand_minutes = document.getElementById('clock-minutes');
var hand_hours = document.getElementById('clock-hours');
var seconds = Math.floor(hand_seconds.value * 60);
var minutes = Math.floor(hand_minutes.value * 60);
var hours = Math.floor(hand_hours.value * 12);
if (seconds < 0 || seconds >= 60) {
minutes += Math.floor(seconds / 60);
seconds -= Math.floor(seconds / 60) * 60;
hand_seconds.value = seconds / 60; // Subtle drifting!
}
if (minutes < 0 || minutes >= 60) {
hours += Math.floor(minutes / 60);
minutes -= Math.floor(minutes / 60) * 60;
hand_minutes.value = minutes / 60; // Subtle drifting!
}
hours = ((hours % 12) + 12) % 12;
console.assert(seconds >=0 && seconds < 60 && minutes >=0 && minutes < 60 && hours >=0 && hours < 12, {'hours': hours, 'minutes': minutes, 'seconds': seconds});
if (ev.target !== hand_hours) {
hand_hours.value = (hours + (minutes / 60)) / 12;
}
if (ev.target !== hand_minutes) {
hand_minutes.value = minutes / 60;
}
if (ev.target !== hand_seconds) {
hand_seconds.value = seconds / 60;
}
document.getElementById('clock-hours-output').value = hours === 0 ? 12 : hours;
document.getElementById('clock-minutes-output').value = minutes;
document.getElementById('clock-seconds-output').value = seconds;
});
document.getElementById('clock-hours').addEventListener('change', function(ev) {
var hand_minutes = document.getElementById('clock-minutes');
var hand_hours = document.getElementById('clock-hours');
var minutes = Math.floor(hand_minutes.value * 60);
var hours = Math.floor(hand_hours.value * 12);
hand_hours.value = (hours + (minutes / 60)) / 12;
});
document.getElementById('clock-example').addEventListener('change', function(ev) {
console.log(ev.type + ' on ' + ev.target.id);
});
window.addEventListener('load', function() {
// Must be after the document is loaded because of webcomponentsjs polyfill.
document.getElementById('clock-seconds').value = 42 / 60;
document.getElementById('clock-minutes').value = 9 / 60;
document.getElementById('clock-hours').value = (10 + (9 / 60)) / 12;
document.getElementById('clock-hours').dispatchEvent(new Event('input', {'bubbles': true}));
});
</script>
<h2>Misc. demos</h2>
<p>Several small demonstrations trying to showcase specific features or behaviors.</p>
<p id="simple"><x-knob></x-knob> Simplest markup "just works" with some reasonable defaults. It only requires importing <code>xknob.js</code> and <code>xknob.css</code>.</p>
<p id="sizes"><x-knob></x-knob> <x-knob></x-knob> <x-knob></x-knob> <x-knob></x-knob> <x-knob></x-knob> SVG graphics adapting to any size. Also means the click region is precisely the graphic itself, and nothing else.</p>
<p id="disabledreadonly"><x-knob disabled></x-knob> <x-knob readonly></x-knob> <x-knob disabled readonly></x-knob> Attributes <code>disabled</code> and <code>readonly</code> are available, but don't change the look.</p>
<p id="gfx"><x-knob svgsymbolid="circle-with-dot"></x-knob> <x-knob svgsymbolid="long-stick"></x-knob> <x-knob svgsymbolid="arrow"></x-knob> A custom SVG graphic can be selected by passing an <code>id</code> of an SVG <code><symbol></code> available from within the same document. The symbol will be (deep-)copied into the shadow DOM of the <code>x-knob</code> element. Symbols from external files are not supported.</p>
<p id="events"><x-knob id="eventsdemo"></x-knob> Supports <code>input</code> event (value = <output id="oninputvalue"></output>) and <code>change</code> event (value = <output id="onchangevalue"></output>). The <code>change</code> event is triggered if the value has changed after the mouse button is released, after the touch has ended, or after a keyboard press. The <code>input</code> event is triggered immediately.</p>
<p id="bubbling"><x-knob data-name="first knob"></x-knob> <x-knob data-name="second knob"></x-knob> The events bubble correctly: <output id="bubblingoutput"></output></p>
<p id="snap"><x-knob divisions="2"></x-knob> <x-knob divisions="3"></x-knob> <x-knob divisions="4"></x-knob> <x-knob divisions="8"></x-knob> <x-knob divisions="16"></x-knob> Optionally snaps the knob to discrete rotations. <output id="snapoutput"></output></p>
<p id="transition"><x-knob divisions="2"></x-knob> <x-knob divisions="3"></x-knob> <x-knob divisions="4"></x-knob> <x-knob divisions="8"></x-knob> <x-knob divisions="16"></x-knob> CSS transitions work fine together with discrete rotations, but don't look good on a continuous (analog) knob. <x-knob></x-knob></p>
<p id="minmax"><x-knob min="-1" max="1"></x-knob> <x-knob min="0"></x-knob> <x-knob max="2"></x-knob> <x-knob min="-0.3333" max="0.3333"></x-knob> Has support for <code>min</code> and <code>max</code> attributes. <output id="minmaxoutput"></output></p>
<p id="attrs"><input id="attrsdivisions" type="number" min="2" step="1" value="8" style="width: 4em" title="divisions"> <x-knob id="attrsmin" value="-1" title="min"></x-knob> <x-knob id="attrsmax" value="1" title="max"></x-knob> <x-knob id="attrsvalue"></x-knob> All attributes (<code>divisions</code>, <code>min</code>, <code>max</code>, <code>svgsymbolid</code>, <code>value</code>) can be set using standard DOM methods (such as <code>setAttribute()</code>) or directly to the object. <x-knob id="attrsdom"></x-knob> <x-knob id="attrsdirect"></x-knob></p>
<p id="updatingvalue"><x-knob divisions="0"></x-knob> <x-knob divisions="2"></x-knob> <x-knob divisions="3"></x-knob> <x-knob divisions="4"></x-knob> <x-knob divisions="8"></x-knob> <x-knob divisions="16"></x-knob> Updating the <code>value</code> of a knob that is being rotated may cause drifting. <output id="updatingvalueoutput"></output></p>
<script type="text/javascript">
var eventsdemo = document.getElementById('eventsdemo');
eventsdemo.addEventListener('input', function(ev) {
document.getElementById('oninputvalue').value = ev.target.value;
});
eventsdemo.addEventListener('change', function(ev) {
document.getElementById('onchangevalue').value = ev.target.value;
});
var bubbling = document.getElementById('bubbling'); // This is the <p> element.
var bubbling_handler = function(ev) {
document.getElementById('bubblingoutput').value = ev.type + ' on ' + ev.target.dataset.name;
};
bubbling.addEventListener('input', bubbling_handler);
bubbling.addEventListener('change', bubbling_handler);
document.getElementById('snap').addEventListener('input', function(ev) {
document.getElementById('snapoutput').value = Array.prototype.map.call(
ev.currentTarget.querySelectorAll('x-knob'),
function(x) { return x.value.toFixed(2); }
).join(' | ');
});
document.getElementById('minmax').addEventListener('input', function(ev) {
document.getElementById('minmaxoutput').value = Array.prototype.map.call(
ev.currentTarget.querySelectorAll('x-knob'),
function(x) { return x.value.toFixed(2); }
).join(' | ');
});
document.getElementById('attrs').addEventListener('input', function(ev) {
if (['attrsdivisions', 'attrsmin', 'attrsmax', 'attrsvalue'].indexOf(ev.target.id) > -1) {
var attr = ev.target.id.replace('attrs', '');
document.getElementById('attrsdom').setAttribute(attr, ev.target.value);
document.getElementById('attrsdirect')[attr] = ev.target.value;
}
});
document.getElementById('updatingvalue').addEventListener('input', function(ev) {
// Since .value has a setter function, the following line may cause side-effects.
ev.target.value = ev.target.value;
document.getElementById('updatingvalueoutput').value = Array.prototype.map.call(
ev.currentTarget.querySelectorAll('x-knob'),
function(x) { return x.value.toFixed(2); }
).join(' | ');
});
</script>
</body>
</html>