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wip

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Files changed (31) hide show
  1. css/chessboard-1.0.0.css +54 -0
  2. css/chessboard-1.0.0.min.css +2 -0
  3. ggml-tiny.en.bin +0 -3
  4. img/chesspieces/wikipedia/bB.png +0 -0
  5. img/chesspieces/wikipedia/bK.png +0 -0
  6. img/chesspieces/wikipedia/bN.png +0 -0
  7. img/chesspieces/wikipedia/bP.png +0 -0
  8. img/chesspieces/wikipedia/bQ.png +0 -0
  9. img/chesspieces/wikipedia/bR.png +0 -0
  10. img/chesspieces/wikipedia/wB.png +0 -0
  11. img/chesspieces/wikipedia/wK.png +0 -0
  12. img/chesspieces/wikipedia/wN.png +0 -0
  13. img/chesspieces/wikipedia/wP.png +0 -0
  14. img/chesspieces/wikipedia/wQ.png +0 -0
  15. img/chesspieces/wikipedia/wR.png +0 -0
  16. index.html +432 -877
  17. js/chess.js +0 -0
  18. js/chessboard-1.0.0.js +1817 -0
  19. js/chessboard-1.0.0.min.js +2 -0
  20. helpers.js → js/helpers.js +21 -9
  21. js/jquery-3.7.1.min.js +2 -0
  22. js/wchess.wasm.js +0 -0
  23. js/wchess.wasm.worker.js +1 -0
  24. libmain.worker.js +0 -1
  25. libwhisper.worker.js +0 -1
  26. models/.gitattributes +0 -51
  27. models/README.md +0 -24
  28. models/ggml-base.bin +0 -3
  29. models/ggml-base.en.bin +0 -3
  30. models/ggml-tiny.bin +0 -3
  31. models/ggml-tiny.en.bin +0 -3
css/chessboard-1.0.0.css ADDED
@@ -0,0 +1,54 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ /*! chessboard.js v1.0.0 | (c) 2019 Chris Oakman | MIT License chessboardjs.com/license */
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+
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+ .clearfix-7da63 {
4
+ clear: both;
5
+ }
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+
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+ .board-b72b1 {
8
+ border: 2px solid #404040;
9
+ box-sizing: content-box;
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+ }
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+
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+ .square-55d63 {
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+ float: left;
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+ position: relative;
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+
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+ /* disable any native browser highlighting */
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+ -webkit-touch-callout: none;
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+ -webkit-user-select: none;
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+ -khtml-user-select: none;
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+ -moz-user-select: none;
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+ -ms-user-select: none;
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+ user-select: none;
23
+ }
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+
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+ .white-1e1d7 {
26
+ background-color: #f0d9b5;
27
+ color: #b58863;
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+ }
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+
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+ .black-3c85d {
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+ background-color: #b58863;
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+ color: #f0d9b5;
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+ }
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+
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+ .highlight1-32417, .highlight2-9c5d2 {
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+ box-shadow: inset 0 0 3px 3px yellow;
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+ }
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+
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+ .notation-322f9 {
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+ cursor: default;
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+ font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
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+ font-size: 14px;
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+ position: absolute;
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+ }
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+
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+ .alpha-d2270 {
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+ bottom: 1px;
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+ right: 3px;
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+ }
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+
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+ .numeric-fc462 {
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+ top: 2px;
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+ left: 2px;
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+ }
css/chessboard-1.0.0.min.css ADDED
@@ -0,0 +1,2 @@
 
 
 
1
+ /*! chessboard.js v1.0.0 | (c) 2019 Chris Oakman | MIT License chessboardjs.com/license */
2
+ .clearfix-7da63{clear:both}.board-b72b1{border:2px solid #404040;box-sizing:content-box}.square-55d63{float:left;position:relative;-webkit-touch-callout:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.white-1e1d7{background-color:#f0d9b5;color:#b58863}.black-3c85d{background-color:#b58863;color:#f0d9b5}.highlight1-32417,.highlight2-9c5d2{box-shadow:inset 0 0 3px 3px #ff0}.notation-322f9{cursor:default;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;position:absolute}.alpha-d2270{bottom:1px;right:3px}.numeric-fc462{top:2px;left:2px}
ggml-tiny.en.bin DELETED
@@ -1,3 +0,0 @@
1
- version https://git-lfs.github.com/spec/v1
2
- oid sha256:921e4cf8686fdd993dcd081a5da5b6c365bfde1162e72b08d75ac75289920b1f
3
- size 77704715
 
 
 
 
img/chesspieces/wikipedia/bB.png ADDED
img/chesspieces/wikipedia/bK.png ADDED
img/chesspieces/wikipedia/bN.png ADDED
img/chesspieces/wikipedia/bP.png ADDED
img/chesspieces/wikipedia/bQ.png ADDED
img/chesspieces/wikipedia/bR.png ADDED
img/chesspieces/wikipedia/wB.png ADDED
img/chesspieces/wikipedia/wK.png ADDED
img/chesspieces/wikipedia/wN.png ADDED
img/chesspieces/wikipedia/wP.png ADDED
img/chesspieces/wikipedia/wQ.png ADDED
img/chesspieces/wikipedia/wR.png ADDED
index.html CHANGED
@@ -1,886 +1,441 @@
1
  <!doctype html>
2
  <html lang="en-us">
3
- <head>
4
- <title>whisper.cpp : WASM example</title>
5
- <script src="https://cdnjs.cloudflare.com/ajax/libs/iframe-resizer/4.3.1/iframeResizer.contentWindow.min.js"></script>
6
-
7
- <style>
8
- #output {
9
- width: 100%;
10
- height: 100%;
11
- margin: 0 auto;
12
- margin-top: 10px;
13
- border-left: 0px;
14
- border-right: 0px;
15
- padding-left: 0px;
16
- padding-right: 0px;
17
- display: block;
18
- background-color: black;
19
- color: white;
20
- font-size: 10px;
21
- font-family: "Lucida Console", Monaco, monospace;
22
- outline: none;
23
- white-space: pre;
24
- overflow-wrap: normal;
25
- overflow-x: scroll;
26
- }
27
- </style>
28
- </head>
29
- <body>
30
- <div id="main-container">
31
- <div id="warning" style="display: none; padding: 1rem">
32
- <b style="color: red; font-size: large"
33
- >Warning: your browser does not support SharedArrayBuffer please try
34
- open the page in a new tab.
35
- </b>
36
- <!-- <a target="_blank" href="https://radames-whisper-wasm.hf.space" target="_blank"
37
- >https://radames-whisper-wasm.hf.space</a
38
- > -->
39
- </div>
40
- <b
41
- >Minimal
42
- <a target="_blank" href="https://github.com/ggerganov/whisper.cpp">whisper.cpp</a>
43
- example running fully in the browser</b
44
- >
45
-
46
- <br /><br />
47
-
48
- Usage instructions:<br />
49
- <ul>
50
- <li>
51
- Load a ggml model file (you can obtain one from
52
- <a target="_blank" href="https://ggml.ggerganov.com/">here</a>, recommended:
53
- <b>tiny</b> or <b>base</b>)
54
- </li>
55
- <li>
56
- Select audio file to transcribe or record audio from the microphone
57
- (sample: <a target="_blank" href="https://whisper.ggerganov.com/jfk.wav">jfk.wav</a>)
58
- </li>
59
- <li>Click on the "Transcribe" button to start the transcription</li>
60
- </ul>
61
-
62
- Note that the computation is quite heavy and may take a few seconds to
63
- complete.<br />
64
- The transcription results will be displayed in the text area below.<br /><br />
65
- <b>Important:</b>
66
- <ul>
67
- <li>
68
- your browser must support WASM SIMD instructions for this to work
69
- </li>
70
- <li>
71
- Firefox cannot load files larger than 256 MB - use Chrome instead
72
- </li>
73
- </ul>
74
-
75
- <b>More examples:</b>
76
- <a target="_blank" href="https://whisper.ggerganov.com/">main</a> |
77
- <a target="_blank" href="https://whisper.ggerganov.com/bench">bench</a> |
78
- <a target="_blank" href="https://whisper.ggerganov.com/stream">stream</a> |
79
- <a target="_blank" href="https://whisper.ggerganov.com/command">command</a> |
80
- <a target="_blank" href="https://whisper.ggerganov.com/talk">talk</a> |
81
-
82
- <hr />
83
-
84
- <div id="model">
85
- Whisper models: <span id="model-whisper-status"></span><br /><br />
86
- <button id="fetch-whisper-tiny-en" onclick="loadWhisper('tiny.en')">
87
- tiny.en (75 MB)
88
- </button>
89
- <button id="fetch-whisper-tiny" onclick="loadWhisper('tiny')">
90
- tiny (75 MB)
91
- </button>
92
- <button id="fetch-whisper-base-en" onclick="loadWhisper('base.en')">
93
- base.en (142 MB)
94
- </button>
95
- <button id="fetch-whisper-base" onclick="loadWhisper('base')">
96
- base (142 MB)
97
- </button>
98
- <button id="fetch-whisper-small-en" onclick="loadWhisper('small.en')">
99
- small.en (466 MB)
100
- </button>
101
- <button id="fetch-whisper-small" onclick="loadWhisper('small')">
102
- small (466 MB)
103
- </button>
104
- <input
105
- type="file"
106
- id="whisper-file"
107
- name="file"
108
- onchange="loadFile(event, 'whisper.bin')"
109
- />
110
- <br /><br />
111
- Quantized models:<br /><br />
112
- <button
113
- id="fetch-whisper-tiny-en-q5_1"
114
- onclick="loadWhisper('tiny-en-q5_1')"
115
- >
116
- tiny.en (Q5_1, 31 MB)
117
- </button>
118
- <button id="fetch-whisper-tiny-q5_1" onclick="loadWhisper('tiny-q5_1')">
119
- tiny (Q5_1, 31 MB)
120
- </button>
121
- <button
122
- id="fetch-whisper-base-en-q5_1"
123
- onclick="loadWhisper('base-en-q5_1')"
124
- >
125
- base.en (Q5_1, 57 MB)
126
- </button>
127
- <button id="fetch-whisper-base-q5_1" onclick="loadWhisper('base-q5_1')">
128
- base (Q5_1, 57 MB)
129
- </button>
130
- <button
131
- id="fetch-whisper-small-en-q5_1"
132
- onclick="loadWhisper('small-en-q5_1')"
133
- >
134
- small.en (Q5_1, 182 MB)
135
- </button>
136
- <button
137
- id="fetch-whisper-small-q5_1"
138
- onclick="loadWhisper('small-q5_1')"
139
- >
140
- small (Q5_1, 182 MB)</button
141
- ><br />
142
- <button
143
- id="fetch-whisper-medium-en-q5_0"
144
- onclick="loadWhisper('medium-en-q5_0')"
145
- >
146
- medium.en (Q5_0, 515 MB)
147
- </button>
148
- <button
149
- id="fetch-whisper-medium-q5_0"
150
- onclick="loadWhisper('medium-q5_0')"
151
- >
152
- medium (Q5_0, 515 MB)
153
- </button>
154
- <button
155
- id="fetch-whisper-large-q5_0"
156
- onclick="loadWhisper('large-q5_0')"
157
- >
158
- large (Q5_0, 1030 MB)
159
- </button>
160
- <span id="fetch-whisper-progress"></span>
161
- </div>
162
-
163
- <br />
164
-
165
- <!-- radio button to select between file upload or microphone -->
166
- <div id="input">
167
- Input:
168
- <input
169
- type="radio"
170
- id="file"
171
- name="input"
172
- value="file"
173
- checked="checked"
174
- onchange="changeInput('file')"
175
- />
176
- <label for="file">File</label>
177
- <input
178
- type="radio"
179
- id="mic"
180
- name="input"
181
- value="mic"
182
- onchange="changeInput('mic')"
183
- />
184
- <label for="mic">Microphone</label>
185
- </div>
186
-
187
- <br />
188
-
189
- <div id="input_file">
190
- Audio file:
191
- <input type="file" id="file" name="file" onchange="loadAudio(event)" />
192
- </div>
193
-
194
- <div id="input_mic" style="display: none">
195
- Microphone:
196
- <button id="start" onclick="startRecording()">Start</button>
197
- <button id="stop" onclick="stopRecording()" disabled>Stop</button>
198
-
199
- <!-- progress bar to show recording progress -->
200
- <br /><br />
201
- <div id="progress" style="display: none">
202
- <div
203
- id="progress-bar"
204
- style="width: 0%; height: 10px; background-color: #4caf50"
205
- ></div>
206
- <div id="progress-text">0%</div>
207
  </div>
208
- </div>
209
-
210
- <a target="_blank"udio controls="controls" id="audio" loop hidden>
211
- Your browser does not support the &lt;audio&gt; tag.
212
- <source id="source" src="" type="audio/wav" />
213
- </audio>
214
-
215
- <hr />
216
- <br />
217
-
218
- <table>
219
- <tr>
220
- <td>
221
- Language:
222
- <select id="language" name="language">
223
- <option value="en">English</option>
224
- <option value="ar">Arabic</option>
225
- <option value="hy">Armenian</option>
226
- <option value="az">Azerbaijani</option>
227
- <option value="eu">Basque</option>
228
- <option value="be">Belarusian</option>
229
- <option value="bn">Bengali</option>
230
- <option value="bg">Bulgarian</option>
231
- <option value="ca">Catalan</option>
232
- <option value="zh">Chinese</option>
233
- <option value="hr">Croatian</option>
234
- <option value="cs">Czech</option>
235
- <option value="da">Danish</option>
236
- <option value="nl">Dutch</option>
237
- <option value="en">English</option>
238
- <option value="et">Estonian</option>
239
- <option value="tl">Filipino</option>
240
- <option value="fi">Finnish</option>
241
- <option value="fr">French</option>
242
- <option value="gl">Galician</option>
243
- <option value="ka">Georgian</option>
244
- <option value="de">German</option>
245
- <option value="el">Greek</option>
246
- <option value="gu">Gujarati</option>
247
- <option value="iw">Hebrew</option>
248
- <option value="hi">Hindi</option>
249
- <option value="hu">Hungarian</option>
250
- <option value="is">Icelandic</option>
251
- <option value="id">Indonesian</option>
252
- <option value="ga">Irish</option>
253
- <option value="it">Italian</option>
254
- <option value="ja">Japanese</option>
255
- <option value="kn">Kannada</option>
256
- <option value="ko">Korean</option>
257
- <option value="la">Latin</option>
258
- <option value="lv">Latvian</option>
259
- <option value="lt">Lithuanian</option>
260
- <option value="mk">Macedonian</option>
261
- <option value="ms">Malay</option>
262
- <option value="mt">Maltese</option>
263
- <option value="no">Norwegian</option>
264
- <option value="fa">Persian</option>
265
- <option value="pl">Polish</option>
266
- <option value="pt">Portuguese</option>
267
- <option value="ro">Romanian</option>
268
- <option value="ru">Russian</option>
269
- <option value="sr">Serbian</option>
270
- <option value="sk">Slovak</option>
271
- <option value="sl">Slovenian</option>
272
- <option value="es">Spanish</option>
273
- <option value="sw">Swahili</option>
274
- <option value="sv">Swedish</option>
275
- <option value="ta">Tamil</option>
276
- <option value="te">Telugu</option>
277
- <option value="th">Thai</option>
278
- <option value="tr">Turkish</option>
279
- <option value="uk">Ukrainian</option>
280
- <option value="ur">Urdu</option>
281
- <option value="vi">Vietnamese</option>
282
- <option value="cy">Welsh</option>
283
- <option value="yi">Yiddish</option>
284
- </select>
285
- </td>
286
- <!-- Slider to select number of threads between 1 and 16 -->
287
- <td>
288
- Threads:
289
- <input
290
- type="range"
291
- id="threads"
292
- name="threads"
293
- min="1"
294
- max="16"
295
- value="8"
296
- onchange="changeThreads(this.value)"
297
- />
298
- <span id="threads-value">8</span>
299
- </td>
300
- <td>
301
- <button onclick="onProcess(false);">Transcribe</button>
302
- </td>
303
- <td>
304
- <button onclick="onProcess(true);">Translate</button>
305
- </td>
306
- </tr>
307
- </table>
308
-
309
- <br />
310
-
311
- <!-- textarea with height filling the rest of the page -->
312
- <textarea id="output" rows="20"></textarea>
313
-
314
- <br /><br />
315
-
316
- <div class="cell-version">
317
- <span>
318
- | Build time: <span class="nav-link">@GIT_DATE@</span> | Commit hash:
319
- <a target="_blank"
320
- class="nav-link"
321
- href="https://github.com/ggerganov/whisper.cpp/commit/@GIT_SHA1@"
322
- >@GIT_SHA1@</a
323
- >
324
- | Commit subject: <span class="nav-link">@GIT_COMMIT_SUBJECT@</span> |
325
- <a target="_blank"
326
- class="nav-link"
327
- href="https://github.com/ggerganov/whisper.cpp/tree/master/examples/whisper.wasm"
328
- >Source Code</a
329
- >
330
- |
331
- </span>
332
- </div>
333
- </div>
334
-
335
- <script type="text/javascript" src="helpers.js"></script>
336
- <script type="text/javascript">
337
- document.addEventListener("DOMContentLoaded", () => {
338
- //check is shared array buffer is supported
339
- if (!window.SharedArrayBuffer) {
340
- document.querySelector("#warning").style.display = "block";
341
- }
342
- });
343
- // TODO: convert audio buffer to WAV
344
- function setAudio(audio) {
345
- //if (audio) {
346
- // // convert to 16-bit PCM
347
- // var blob = new Blob([audio], { type: 'audio/wav' });
348
- // var url = URL.createObjectURL(blob);
349
- // document.getElementById('source').src = url;
350
- // document.getElementById('audio').hidden = false;
351
- // document.getElementById('audio').loop = false;
352
- // document.getElementById('audio').load();
353
- //} else {
354
- // document.getElementById('audio').hidden = true;
355
- //}
356
- }
357
-
358
- function changeInput(input) {
359
- if (input == "file") {
360
- document.getElementById("input_file").style.display = "block";
361
- document.getElementById("input_mic").style.display = "none";
362
- document.getElementById("progress").style.display = "none";
363
- } else {
364
- document.getElementById("input_file").style.display = "none";
365
- document.getElementById("input_mic").style.display = "block";
366
- document.getElementById("progress").style.display = "block";
367
- }
368
- }
369
-
370
- var Module = {
371
- print: printTextarea,
372
- printErr: printTextarea,
373
- setStatus: function (text) {
374
- printTextarea("js: " + text);
375
- },
376
- monitorRunDependencies: function (left) {},
377
- };
378
-
379
- // web audio context
380
- var context = null;
381
-
382
- // audio data
383
- var audio = null;
384
-
385
- // the whisper instance
386
- var instance = null;
387
- var model_whisper = "";
388
-
389
- // helper function
390
- function convertTypedArray(src, type) {
391
- var buffer = new ArrayBuffer(src.byteLength);
392
- var baseView = new src.constructor(buffer).set(src);
393
- return new type(buffer);
394
- }
395
-
396
- //
397
- // load model
398
- //
399
-
400
- let dbVersion = 1;
401
- let dbName = "whisper.ggerganov.com";
402
- let indexedDB =
403
- window.indexedDB ||
404
- window.mozIndexedDB ||
405
- window.webkitIndexedDB ||
406
- window.msIndexedDB;
407
-
408
- function storeFS(fname, buf) {
409
- // write to WASM file using FS_createDataFile
410
- // if the file exists, delete it
411
- try {
412
- Module.FS_unlink(fname);
413
- } catch (e) {
414
- // ignore
415
- }
416
-
417
- Module.FS_createDataFile("/", fname, buf, true, true);
418
-
419
- //model_whisper = fname;
420
-
421
- document.getElementById("model-whisper-status").innerHTML =
422
- 'loaded "' + model_whisper + '"!';
423
-
424
- printTextarea(
425
- "storeFS: stored model: " + fname + " size: " + buf.length
426
- );
427
-
428
- document.getElementById("model").innerHTML =
429
- "Model fetched: " + model_whisper;
430
- }
431
-
432
- function loadFile(event, fname) {
433
- var file = event.target.files[0] || null;
434
- if (file == null) {
435
- return;
436
- }
437
-
438
- printTextarea(
439
- "loadFile: loading model: " +
440
- file.name +
441
- ", size: " +
442
- file.size +
443
- " bytes"
444
- );
445
- printTextarea("loadFile: please wait ...");
446
-
447
- var reader = new FileReader();
448
- reader.onload = function (event) {
449
- var buf = new Uint8Array(reader.result);
450
- storeFS(fname, buf);
451
- };
452
- reader.readAsArrayBuffer(file);
453
-
454
- document.getElementById("fetch-whisper-tiny-en").style.display = "none";
455
- document.getElementById("fetch-whisper-base-en").style.display = "none";
456
- document.getElementById("fetch-whisper-small-en").style.display =
457
- "none";
458
- document.getElementById("fetch-whisper-tiny").style.display = "none";
459
- document.getElementById("fetch-whisper-base").style.display = "none";
460
- document.getElementById("fetch-whisper-small").style.display = "none";
461
-
462
- document.getElementById("fetch-whisper-tiny-en-q5_1").style.display =
463
- "none";
464
- document.getElementById("fetch-whisper-tiny-q5_1").style.display =
465
- "none";
466
- document.getElementById("fetch-whisper-base-en-q5_1").style.display =
467
- "none";
468
- document.getElementById("fetch-whisper-base-q5_1").style.display =
469
- "none";
470
- document.getElementById("fetch-whisper-small-en-q5_1").style.display =
471
- "none";
472
- document.getElementById("fetch-whisper-small-q5_1").style.display =
473
- "none";
474
- document.getElementById("fetch-whisper-medium-en-q5_0").style.display =
475
- "none";
476
- document.getElementById("fetch-whisper-medium-q5_0").style.display =
477
- "none";
478
- document.getElementById("fetch-whisper-large-q5_0").style.display =
479
- "none";
480
-
481
- document.getElementById("whisper-file").style.display = "none";
482
- document.getElementById("model-whisper-status").innerHTML =
483
- "loaded model: " + file.name;
484
- }
485
-
486
- function loadWhisper(model) {
487
- const baseURL =
488
- "https://huggingface.co/ggerganov/whisper.cpp/resolve/main";
489
- let urls = {
490
- "tiny.en": `${baseURL}/ggml-tiny.en.bin`,
491
- tiny: `${baseURL}/ggml-tiny.bin`,
492
- "base.en": `${baseURL}/ggml-base.en.bin`,
493
- base: `${baseURL}/ggml-base.bin`,
494
- "small.en": `${baseURL}/ggml-small.en.bin`,
495
- small: `${baseURL}/ggml-small.bin`,
496
-
497
- "tiny-en-q5_1": `${baseURL}/ggml-model-whisper-tiny.en-q5_1.bin`,
498
- "tiny-q5_1": `${baseURL}/ggml-model-whisper-tiny-q5_1.bin`,
499
- "base-en-q5_1": `${baseURL}/ggml-model-whisper-base.en-q5_1.bin`,
500
- "base-q5_1": `${baseURL}/ggml-model-whisper-base-q5_1.bin`,
501
- "small-en-q5_1": `${baseURL}/ggml-model-whisper-small.en-q5_1.bin`,
502
- "small-q5_1": `${baseURL}/ggml-model-whisper-small-q5_1.bin`,
503
- "medium-en-q5_0": `${baseURL}/ggml-model-whisper-medium.en-q5_0.bin`,
504
- "medium-q5_0": `${baseURL}/ggml-model-whisper-medium-q5_0.bin`,
505
- "large-q5_0": `${baseURL}/ggml-model-whisper-large-q5_0.bin`,
506
- };
507
-
508
- let sizes = {
509
- "tiny.en": 75,
510
- tiny: 75,
511
- "base.en": 142,
512
- base: 142,
513
- "small.en": 466,
514
- small: 466,
515
-
516
- "tiny-en-q5_1": 31,
517
- "tiny-q5_1": 31,
518
- "base-en-q5_1": 57,
519
- "base-q5_1": 57,
520
- "small-en-q5_1": 182,
521
- "small-q5_1": 182,
522
- "medium-en-q5_0": 515,
523
- "medium-q5_0": 515,
524
- "large-q5_0": 1030,
525
- };
526
-
527
- let url = urls[model];
528
- let dst = "whisper.bin";
529
- let size_mb = sizes[model];
530
-
531
- model_whisper = model;
532
-
533
- document.getElementById("fetch-whisper-tiny-en").style.display = "none";
534
- document.getElementById("fetch-whisper-base-en").style.display = "none";
535
- document.getElementById("fetch-whisper-small-en").style.display =
536
- "none";
537
- document.getElementById("fetch-whisper-tiny").style.display = "none";
538
- document.getElementById("fetch-whisper-base").style.display = "none";
539
- document.getElementById("fetch-whisper-small").style.display = "none";
540
-
541
- document.getElementById("fetch-whisper-tiny-en-q5_1").style.display =
542
- "none";
543
- document.getElementById("fetch-whisper-tiny-q5_1").style.display =
544
- "none";
545
- document.getElementById("fetch-whisper-base-en-q5_1").style.display =
546
- "none";
547
- document.getElementById("fetch-whisper-base-q5_1").style.display =
548
- "none";
549
- document.getElementById("fetch-whisper-small-en-q5_1").style.display =
550
- "none";
551
- document.getElementById("fetch-whisper-small-q5_1").style.display =
552
- "none";
553
- document.getElementById("fetch-whisper-medium-en-q5_0").style.display =
554
- "none";
555
- document.getElementById("fetch-whisper-medium-q5_0").style.display =
556
- "none";
557
- document.getElementById("fetch-whisper-large-q5_0").style.display =
558
- "none";
559
-
560
- document.getElementById("whisper-file").style.display = "none";
561
- document.getElementById("model-whisper-status").innerHTML =
562
- "loading model: " + model;
563
-
564
- cbProgress = function (p) {
565
- let el = document.getElementById("fetch-whisper-progress");
566
- el.innerHTML = Math.round(100 * p) + "%";
567
- };
568
-
569
- cbCancel = function () {
570
- var el;
571
-
572
- el = document.getElementById("fetch-whisper-tiny-en");
573
- if (el) el.style.display = "inline-block";
574
- el = document.getElementById("fetch-whisper-base-en");
575
- if (el) el.style.display = "inline-block";
576
- el = document.getElementById("fetch-whisper-small-en");
577
- if (el) el.style.display = "inline-block";
578
- el = document.getElementById("fetch-whisper-tiny");
579
- if (el) el.style.display = "inline-block";
580
- el = document.getElementById("fetch-whisper-base");
581
- if (el) el.style.display = "inline-block";
582
- el = document.getElementById("fetch-whisper-small");
583
- if (el) el.style.display = "inline-block";
584
-
585
- el = document.getElementById("fetch-whisper-tiny-en-q5_1");
586
- if (el) el.style.display = "inline-block";
587
- el = document.getElementById("fetch-whisper-tiny-q5_1");
588
- if (el) el.style.display = "inline-block";
589
- el = document.getElementById("fetch-whisper-base-en-q5_1");
590
- if (el) el.style.display = "inline-block";
591
- el = document.getElementById("fetch-whisper-base-q5_1");
592
- if (el) el.style.display = "inline-block";
593
- el = document.getElementById("fetch-whisper-small-en-q5_1");
594
- if (el) el.style.display = "inline-block";
595
- el = document.getElementById("fetch-whisper-small-q5_1");
596
- if (el) el.style.display = "inline-block";
597
- el = document.getElementById("fetch-whisper-medium-en-q5_0");
598
- if (el) el.style.display = "inline-block";
599
- el = document.getElementById("fetch-whisper-medium-q5_0");
600
- if (el) el.style.display = "inline-block";
601
- el = document.getElementById("fetch-whisper-large-q5_0");
602
- if (el) el.style.display = "inline-block";
603
-
604
- el = document.getElementById("whisper-file");
605
- if (el) el.style.display = "inline-block";
606
- el = document.getElementById("model-whisper-status");
607
- if (el) el.innerHTML = "";
608
- };
609
-
610
- loadRemote(
611
- url,
612
- dst,
613
- size_mb,
614
- cbProgress,
615
- storeFS,
616
- cbCancel,
617
- printTextarea
618
- );
619
- }
620
-
621
- //
622
- // audio file
623
- //
624
-
625
- const kMaxAudio_s = 30 * 60;
626
- const kMaxRecording_s = 2 * 60;
627
- const kSampleRate = 16000;
628
-
629
- window.AudioContext = window.AudioContext || window.webkitAudioContext;
630
- window.OfflineAudioContext =
631
- window.OfflineAudioContext || window.webkitOfflineAudioContext;
632
-
633
- function loadAudio(event) {
634
- if (!context) {
635
- context = new AudioContext({
636
- sampleRate: kSampleRate,
637
- channelCount: 1,
638
- echoCancellation: false,
639
- autoGainControl: true,
640
- noiseSuppression: true,
641
- });
642
- }
643
-
644
- var file = event.target.files[0] || null;
645
- if (file == null) {
646
- return;
647
- }
648
-
649
- printTextarea(
650
- "js: loading audio: " + file.name + ", size: " + file.size + " bytes"
651
- );
652
- printTextarea("js: please wait ...");
653
-
654
- var reader = new FileReader();
655
- reader.onload = function (event) {
656
- var buf = new Uint8Array(reader.result);
657
-
658
- context.decodeAudioData(
659
- buf.buffer,
660
- function (audioBuffer) {
661
- var offlineContext = new OfflineAudioContext(
662
- audioBuffer.numberOfChannels,
663
- audioBuffer.length,
664
- audioBuffer.sampleRate
665
- );
666
- var source = offlineContext.createBufferSource();
667
- source.buffer = audioBuffer;
668
- source.connect(offlineContext.destination);
669
- source.start(0);
670
-
671
- offlineContext.startRendering().then(function (renderedBuffer) {
672
- audio = renderedBuffer.getChannelData(0);
673
- printTextarea("js: audio loaded, size: " + audio.length);
674
-
675
- // truncate to first 30 seconds
676
- if (audio.length > kMaxAudio_s * kSampleRate) {
677
- audio = audio.slice(0, kMaxAudio_s * kSampleRate);
678
- printTextarea(
679
- "js: truncated audio to first " + kMaxAudio_s + " seconds"
680
- );
681
  }
 
682
 
683
- setAudio(audio);
684
- });
685
- },
686
- function (e) {
687
- printTextarea("js: error decoding audio: " + e);
688
- audio = null;
689
- setAudio(audio);
690
  }
691
- );
692
- };
693
- reader.readAsArrayBuffer(file);
694
- }
695
-
696
- //
697
- // microphone
698
- //
699
-
700
- var mediaRecorder = null;
701
- var doRecording = false;
702
- var startTime = 0;
703
-
704
- function stopRecording() {
705
- doRecording = false;
706
- }
707
-
708
- // record up to kMaxRecording_s seconds of audio from the microphone
709
- // check if doRecording is false every 1000 ms and stop recording if so
710
- // update progress information
711
- function startRecording() {
712
- if (!context) {
713
- context = new AudioContext({
714
- sampleRate: kSampleRate,
715
- channelCount: 1,
716
- echoCancellation: false,
717
- autoGainControl: true,
718
- noiseSuppression: true,
719
- });
720
- }
721
-
722
- document.getElementById("start").disabled = true;
723
- document.getElementById("stop").disabled = false;
724
-
725
- document.getElementById("progress-bar").style.width = "0%";
726
- document.getElementById("progress-text").innerHTML = "0%";
727
-
728
- doRecording = true;
729
- startTime = Date.now();
730
-
731
- var chunks = [];
732
- var stream = null;
733
-
734
- navigator.mediaDevices
735
- .getUserMedia({ audio: true, video: false })
736
- .then(function (s) {
737
- stream = s;
738
- mediaRecorder = new MediaRecorder(stream);
739
- mediaRecorder.ondataavailable = function (e) {
740
- chunks.push(e.data);
741
- };
742
- mediaRecorder.onstop = function (e) {
743
- var blob = new Blob(chunks, { type: "audio/ogg; codecs=opus" });
744
- chunks = [];
745
-
746
- document.getElementById("start").disabled = false;
747
- document.getElementById("stop").disabled = true;
748
-
749
- var reader = new FileReader();
750
- reader.onload = function (event) {
751
- var buf = new Uint8Array(reader.result);
752
-
753
- context.decodeAudioData(
754
- buf.buffer,
755
- function (audioBuffer) {
756
- var offlineContext = new OfflineAudioContext(
757
- audioBuffer.numberOfChannels,
758
- audioBuffer.length,
759
- audioBuffer.sampleRate
760
- );
761
- var source = offlineContext.createBufferSource();
762
- source.buffer = audioBuffer;
763
- source.connect(offlineContext.destination);
764
- source.start(0);
765
-
766
- offlineContext
767
- .startRendering()
768
- .then(function (renderedBuffer) {
769
- audio = renderedBuffer.getChannelData(0);
770
- printTextarea(
771
- "js: audio recorded, size: " + audio.length
772
- );
773
-
774
- // truncate to first 30 seconds
775
- if (audio.length > kMaxRecording_s * kSampleRate) {
776
- audio = audio.slice(0, kMaxRecording_s * kSampleRate);
777
- printTextarea(
778
- "js: truncated audio to first " +
779
- kMaxRecording_s +
780
- " seconds"
781
- );
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
782
  }
783
- setAudio(audio);
784
- });
785
- },
786
- function (e) {
787
- printTextarea("js: error decoding audio: " + e);
788
- audio = null;
789
- setAudio(audio);
790
- }
791
- );
792
- };
793
-
794
- reader.readAsArrayBuffer(blob);
795
- };
796
- mediaRecorder.start();
797
- })
798
- .catch(function (err) {
799
- printTextarea("js: error getting audio stream: " + err);
800
- });
801
-
802
- var interval = setInterval(function () {
803
- if (!doRecording) {
804
- clearInterval(interval);
805
- mediaRecorder.stop();
806
- stream.getTracks().forEach(function (track) {
807
- track.stop();
808
- });
809
- }
810
-
811
- document.getElementById("progress-bar").style.width =
812
- (100 * (Date.now() - startTime)) / 1000 / kMaxRecording_s + "%";
813
- document.getElementById("progress-text").innerHTML =
814
- ((100 * (Date.now() - startTime)) / 1000 / kMaxRecording_s).toFixed(
815
- 0
816
- ) + "%";
817
- }, 1000);
818
-
819
- printTextarea("js: recording ...");
820
-
821
- setTimeout(function () {
822
- if (doRecording) {
823
- printTextarea(
824
- "js: recording stopped after " + kMaxRecording_s + " seconds"
825
- );
826
- stopRecording();
827
- }
828
- }, kMaxRecording_s * 1000);
829
- }
830
-
831
- //
832
- // transcribe
833
- //
834
-
835
- var nthreads = 8;
836
-
837
- function changeThreads(value) {
838
- nthreads = value;
839
- document.getElementById("threads-value").innerHTML = nthreads;
840
- }
841
-
842
- function onProcess(translate) {
843
- if (!instance) {
844
- instance = Module.init("whisper.bin");
845
-
846
- if (instance) {
847
- printTextarea("js: whisper initialized, instance: " + instance);
848
- document.getElementById("model").innerHTML =
849
- "Model loaded: " + model_whisper;
850
- }
851
- }
852
-
853
- if (!instance) {
854
- printTextarea("js: failed to initialize whisper");
855
- return;
856
- }
857
-
858
- if (!audio) {
859
- printTextarea("js: no audio data");
860
- return;
861
- }
862
-
863
- if (instance) {
864
- printTextarea("");
865
- printTextarea("js: processing - this might take a while ...");
866
- printTextarea("");
867
-
868
- setTimeout(function () {
869
- var ret = Module.full_default(
870
- instance,
871
- audio,
872
- document.getElementById("language").value,
873
- nthreads,
874
- translate
875
- );
876
- console.log("js: full_default returned: " + ret);
877
- if (ret) {
878
- printTextarea("js: whisper returned: " + ret);
879
  }
880
- }, 100);
881
- }
882
- }
883
- </script>
884
- <script type="text/javascript" src="main.js"></script>
885
- </body>
886
  </html>
 
1
  <!doctype html>
2
  <html lang="en-us">
3
+ <head>
4
+ <title>wchess : voice-controlled chess using Whisper + WebAssembly</title>
5
+ <script src="https://cdnjs.cloudflare.com/ajax/libs/iframe-resizer/4.3.1/iframeResizer.contentWindow.min.js"></script>
6
+
7
+ <meta name="viewport" content="width=device-width, initial-scale=0.4, maximum-scale=1, minimum-scale=1, user-scalable=no"/>
8
+ <meta name="apple-mobile-web-app-capable" content="yes" />
9
+
10
+ <style>
11
+ #output {
12
+ width: 100%;
13
+ height: 100%;
14
+ margin: 0 auto;
15
+ margin-top: 10px;
16
+ border-left: 0px;
17
+ border-right: 0px;
18
+ padding-left: 0px;
19
+ padding-right: 0px;
20
+ display: block;
21
+ background-color: black;
22
+ color: white;
23
+ font-size: 10px;
24
+ font-family: 'Lucida Console', Monaco, monospace;
25
+ outline: none;
26
+ white-space: pre;
27
+ overflow-wrap: normal;
28
+ overflow-x: scroll;
29
+ }
30
+ .button {
31
+ background-color: #000000;
32
+ color: #FFFFFF;
33
+ padding: 20px;
34
+ border-radius: 10px;
35
+ -moz-border-radius: 10px;
36
+ -webkit-border-radius: 10px;
37
+ margin:10px;
38
+ width: 100px;
39
+ height: 50px;
40
+ -webkit-touch-callout: none; /* Safari */
41
+ -webkit-user-select: none; /* Chrome */
42
+ -moz-user-select: none; /* Firefox */
43
+ -ms-user-select: none; /* Internet Explorer/Edge */
44
+ user-select: none;
45
+ }
46
+ .center {
47
+ display: flex;
48
+ justify-content: center;
49
+ align-items: center;
50
+ width: 300px;
51
+ }
52
+ </style>
53
+ <link rel="stylesheet" href="css/chessboard-1.0.0.min.css" integrity="sha384-q94+BZtLrkL1/ohfjR8c6L+A6qzNH9R2hBLwyoAfu3i/WCvQjzL2RQJ3uNHDISdU" crossorigin="anonymous">
54
+ </head>
55
+ <body onload="loadWhisper()">
56
+ <div id="main-container">
57
+ <b>wchess : voice-controlled chess using Whisper + WebAssembly</b>
58
+
59
+ <br><br>
60
+
61
+ This is a demonstration of using Whisper to recognize voice commands in the browser.
62
+
63
+ <br><br>
64
+
65
+ Usage:<br>
66
+
67
+ <ul>
68
+ <li>Hold the button and say a chess move (e.g. "e2-e4")</li>
69
+ <li>Release the button and wait for the move to be recognized</li>
70
+ <li>Repeat</li>
71
+ </ul>
72
+
73
+ Examples:<br>
74
+
75
+ <ul>
76
+ <li><b>"d4"</b></li>
77
+ <li><b>"e2 e4"</b></li>
78
+ <li><b>"Knight to f3"</b></li>
79
+ <li><b>"Bishop to b5"</b></li>
80
+ </ul>
81
+
82
+ Note that not all chess moves are supported. For example, castling and pawn promotion<br>
83
+ currently do not work, but can be easily implemented. The main purpose of this example<br>
84
+ is to demonstrate the capabilities of Whisper and it's application in the browser.
85
+
86
+ <br><br>
87
+
88
+ Features:<br>
89
+
90
+ <ul>
91
+ <li>Model quantization for reduced memory footprint (~42MB)</li>
92
+ <li><a href="https://github.com/ggerganov/whisper.cpp/pull/1229">Grammar-based sampling</a> for improved recognition accuracy</li>
93
+ </ul>
94
+
95
+ You can find more about this project on <a href="https://github.com/ggerganov/whisper.cpp/tree/master/examples/wchess">GitHub</a>.
96
+
97
+ <br><br>
98
+
99
+ <b>More examples:</b>
100
+ <a href="https://whisper.ggerganov.com/">main</a> |
101
+ <a href="https://whisper.ggerganov.com/bench">bench</a> |
102
+ <a href="https://whisper.ggerganov.com/stream">stream</a> |
103
+ <a href="https://whisper.ggerganov.com/command">command</a> |
104
+ <a href="https://whisper.ggerganov.com/talk">talk</a> |
105
+
106
+ <br><br>
107
+
108
+ <hr>
109
+
110
+ <div id="model-whisper">
111
+ Whisper model: <span id="model-whisper-status"></span>
112
+ <span id="fetch-whisper-progress"></span>
113
+ <br><br>
114
+ <button id="clear" onclick="clearCache()">Clear Cache</button>
115
+ <!--
116
+ <input type="file" id="file" name="file" onchange="loadFile(event, 'whisper.bin')" />
117
+ -->
118
+ </div>
119
+
120
+ <br>
121
+ <div id="chessboard" style="width: 300px"></div>
122
+ <script src="js/jquery-3.7.1.min.js"></script>
123
+ <script src="js/chessboard-1.0.0.min.js"></script>
124
+ <script>
125
+ var board = Chessboard('chessboard', 'start')
126
+ var move_count = 0;
127
+ </script>
128
+
129
+ <br>
130
+
131
+ <div id="input" class="center">
132
+ <button id="toggler" class="button" onselectstart="return false" disabled>Hold</button>
133
+ </div>
134
+
135
+ <br>
136
+
137
+ <div id="state">
138
+ Status: <b><span id="state-status">not started</span></b>
139
+
140
+ <pre id="state-moves">[The moves will be displayed here]</pre>
141
+ </div>
142
+
143
+ <hr>
144
+
145
+ Debug output:
146
+ <textarea id="output" rows="20"></textarea>
147
+
148
+ <br>
149
+
150
+ <b>Troubleshooting</b>
151
+
152
+ <br><br>
153
+
154
+ The page does some heavy computations, so make sure:
155
+
156
+ <ul>
157
+ <li>To use a modern web browser (e.g. Chrome, Firefox)</li>
158
+ <li>Your browser supports WASM <a href="https://webassembly.org/roadmap/">Fixed-width SIMD</a></li>
159
+ </ul>
160
+
161
+ <div class="cell-version">
162
+ <span>
163
+ |
164
+ Build time: <span class="nav-link">Fri Dec 8 10:03:41 2023</span> |
165
+ Commit hash: <a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/commit/be5cd736">be5cd736</a> |
166
+ Commit subject: <span class="nav-link">wchess: touchstart, touchend events</span> |
167
+ <a class="nav-link" href="https://github.com/ggerganov/whisper.cpp/tree/master/examples/command.wasm">Source Code</a> |
168
+ </span>
169
+ </div>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
170
  </div>
171
+
172
+ <script type="text/javascript" src="js/helpers.js"></script>
173
+ <script type='text/javascript'>
174
+ // web audio context
175
+ var context = null;
176
+
177
+ // the command instance
178
+ var instance = null;
179
+
180
+ // model name
181
+ var model_whisper = null;
182
+ var model_file = null;
183
+
184
+ var module_ready = null;
185
+
186
+ var Module = {
187
+ print: printTextarea,
188
+ printErr: printTextarea,
189
+ setStatus: function(text) {
190
+ printTextarea('js: ' + text);
191
+ },
192
+ monitorRunDependencies: function(left) {
193
+ },
194
+ preRun: function() {
195
+ printTextarea('js: Preparing ...');
196
+ },
197
+ postRun: function() {
198
+ printTextarea('js: Module initialized successfully!');
199
+ module_ready = true;
200
+ initInstance();
201
+ }
202
+ };
203
+
204
+ function initInstance() {
205
+ if (!module_ready || !model_file || instance) return
206
+
207
+ instance = Module.init(model_file);
208
+
209
+ if (instance) {
210
+ document.getElementById('toggler').disabled = false;
211
+ setStatus('Ready');
212
+ printTextarea("js: whisper initialized, instance: " + instance);
213
+ }
214
+ else {
215
+ printTextarea("js: failed to initialize whisper");
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
216
  }
217
+ }
218
 
219
+ function setStatus(text) {
220
+ document.getElementById('state-status').innerHTML = text;
 
 
 
 
 
221
  }
222
+
223
+ //
224
+ // fetch models
225
+ //
226
+
227
+ let dbVersion = 1
228
+ let dbName = 'whisper.ggerganov.com';
229
+ let indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB
230
+
231
+ function storeFS(fname, buf) {
232
+ // write to WASM file using FS_createDataFile
233
+ // if the file exists, delete it
234
+ try {
235
+ Module.FS_unlink(fname);
236
+ } catch (e) {
237
+ // ignore
238
+ }
239
+
240
+ Module.FS_createDataFile("/", fname, buf, true, true);
241
+
242
+ printTextarea('storeFS: stored model: ' + fname + ' size: ' + buf.length);
243
+
244
+ document.getElementById('model-whisper-status').innerHTML = 'loaded "' + model_whisper + '"!';
245
+
246
+ model_file = fname;
247
+ initInstance();
248
+ }
249
+
250
+ function loadWhisper() {
251
+ setStatus('Loading')
252
+ //let url = 'https://whisper.ggerganov.com/ggml-model-whisper-tiny.en-q8_0.bin';
253
+ let url = 'https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-tiny.en-q8_0.bin';
254
+ let dst = 'whisper.bin';
255
+ let size_mb = 42;
256
+
257
+ model_whisper = 'tiny.en-q8_0';
258
+
259
+ document.getElementById('model-whisper-status').innerHTML = 'loading "' + model_whisper + '" ... ';
260
+
261
+ cbProgress = function(p) {
262
+ let el = document.getElementById('fetch-whisper-progress');
263
+ el.innerHTML = Math.round(100*p) + '%';
264
+ };
265
+
266
+ cbCancel = function() {
267
+ var el;
268
+ el = document.getElementById('model-whisper-status'); if (el) el.innerHTML = '';
269
+ };
270
+
271
+ loadRemote(url, dst, size_mb, cbProgress, storeFS, cbCancel, printTextarea);
272
+ }
273
+
274
+ //
275
+ // microphone
276
+ //
277
+
278
+ const kSampleRate = 16000;
279
+ const kRestartRecording_s = 120;
280
+ const kIntervalAudio_ms = 250; // pass the recorded audio to the C++ instance at this rate
281
+
282
+ var mediaRecorder = null;
283
+ var doRecording = false;
284
+ var startTime = 0;
285
+
286
+ window.AudioContext = window.AudioContext || window.webkitAudioContext;
287
+ window.OfflineAudioContext = window.OfflineAudioContext || window.webkitOfflineAudioContext;
288
+
289
+ function stopRecording() {
290
+ mediaRecorder.stop();
291
+ }
292
+
293
+ function startRecording() {
294
+ if (!context) {
295
+ context = new AudioContext({
296
+ sampleRate: kSampleRate,
297
+ channelCount: 1,
298
+ echoCancellation: false,
299
+ autoGainControl: true,
300
+ noiseSuppression: true,
301
+ });
302
+ }
303
+
304
+ startTime = Date.now();
305
+
306
+ var chunks = [];
307
+ var stream = null;
308
+
309
+ navigator.mediaDevices.getUserMedia({audio: true, video: false})
310
+ .then(function(s) {
311
+ stream = s;
312
+ mediaRecorder = new MediaRecorder(stream);
313
+ mediaRecorder.ondataavailable = function(e) {
314
+ chunks.push(e.data);
315
+
316
+ var blob = new Blob(chunks, { 'type' : 'audio/ogg; codecs=opus' });
317
+ var reader = new FileReader();
318
+
319
+ reader.onload = function(event) {
320
+ var buf = new Uint8Array(reader.result);
321
+ context.decodeAudioData(buf.buffer, function(audioBuffer) {
322
+ var offlineContext = new OfflineAudioContext(audioBuffer.numberOfChannels, audioBuffer.length, audioBuffer.sampleRate);
323
+ var source = offlineContext.createBufferSource();
324
+ source.buffer = audioBuffer;
325
+ source.connect(offlineContext.destination);
326
+ source.start(0);
327
+
328
+ offlineContext.startRendering().then(function(renderedBuffer) {
329
+ let audio = renderedBuffer.getChannelData(0);
330
+ printTextarea('js: number of samples: ' + audio.length);
331
+ Module.set_audio(instance, audio);
332
+ });
333
+
334
+ mediaRecorder = null;
335
+ context = null;
336
+ });
337
+ }
338
+
339
+ reader.readAsArrayBuffer(blob);
340
+ };
341
+
342
+ mediaRecorder.onstop = function(e) {
343
+ stream.getTracks().forEach(function(track) {
344
+ track.stop();
345
+ });
346
+ };
347
+
348
+ mediaRecorder.start();
349
+ })
350
+ .catch(function(err) {
351
+ printTextarea('js: error getting audio stream: ' + err);
352
+ });
353
+ }
354
+
355
+ //
356
+ // main
357
+ //
358
+
359
+ var nLines = 0;
360
+ var movesAll = '';
361
+
362
+ // document.body.addEventListener('keydown', function(event) {
363
+ // if (event.keyCode === 32) {
364
+ // document.getElementById('toggler').innerText = "";
365
+ // onStart();
366
+ // }
367
+ // }, true);
368
+
369
+ // document.body.addEventListener('keyup', function(event) {
370
+ // if (event.keyCode === 32) {
371
+ // document.getElementById('toggler').innerText = "Hold";
372
+ // onStop();
373
+ // }
374
+ // }, true);
375
+
376
+ document.getElementById('toggler').addEventListener("touchstart", function(event){
377
+ this.innerText = "";
378
+ onStart();
379
+ }, true);
380
+
381
+ document.getElementById('toggler').addEventListener("touchend", function(event){
382
+ this.innerText = "Hold";
383
+ onStop();
384
+ }, true)
385
+
386
+ document.getElementById('toggler').addEventListener('mousedown', function(event) {
387
+ this.innerText = "";
388
+ onStart();
389
+ }, true);
390
+
391
+ document.getElementById('toggler').addEventListener('mouseup', function(event) {
392
+ this.innerText = "Hold";
393
+ onStop();
394
+ }, true);
395
+
396
+ function onStart() {
397
+ if (!instance) return;
398
+ setStatus('Listening');
399
+
400
+ startRecording();
401
+ }
402
+
403
+ function onStop() {
404
+ setStatus('Processing');
405
+ printTextarea('js: stopping recording ...');
406
+ stopRecording();
407
+ }
408
+
409
+ function setMove(move, prob) {
410
+ if (move != null && move.length > 1) {
411
+ let gameOver = move[move.length - 1] === '#';
412
+ if (gameOver) {
413
+ move = move.substring(0, move.length - 1);
414
+ document.getElementById('toggler').disabled = true;
415
+ }
416
+ board.move(move);
417
+
418
+ movesAll += move + ', prob = ' + prob.toFixed(2) + '% <br>';
419
+ nLines++;
420
+
421
+ // if more than 10 lines, remove the first line
422
+ if (nLines > 10) {
423
+ var i = movesAll.indexOf('<br>');
424
+ if (i > 0) {
425
+ movesAll = movesAll.substring(i + 4);
426
+ nLines--;
427
  }
428
+ }
429
+ ++move_count;
430
+ setStatus(gameOver ? 'Done' : move_count % 2 ? 'Black\'s turn' : 'White\'s turn');
431
+ document.getElementById('state-moves').innerHTML = movesAll;
432
+ }
433
+ else {
434
+ setStatus('Failed. ' + (move_count % 2 ? 'Black\'s turn' : 'White\'s turn'));
435
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
436
  }
437
+
438
+ </script>
439
+ <script type="text/javascript" src="js/chess.js"></script>
440
+ </body>
 
 
441
  </html>
js/chess.js ADDED
The diff for this file is too large to render. See raw diff
 
js/chessboard-1.0.0.js ADDED
@@ -0,0 +1,1817 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ // chessboard.js v1.0.0
2
+ // https://github.com/oakmac/chessboardjs/
3
+ //
4
+ // Copyright (c) 2019, Chris Oakman
5
+ // Released under the MIT license
6
+ // https://github.com/oakmac/chessboardjs/blob/master/LICENSE.md
7
+
8
+ // start anonymous scope
9
+ ;(function () {
10
+ 'use strict'
11
+
12
+ var $ = window['jQuery']
13
+
14
+ // ---------------------------------------------------------------------------
15
+ // Constants
16
+ // ---------------------------------------------------------------------------
17
+
18
+ var COLUMNS = 'abcdefgh'.split('')
19
+ var DEFAULT_DRAG_THROTTLE_RATE = 20
20
+ var ELLIPSIS = '…'
21
+ var MINIMUM_JQUERY_VERSION = '1.8.3'
22
+ var RUN_ASSERTS = false
23
+ var START_FEN = 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR'
24
+ var START_POSITION = fenToObj(START_FEN)
25
+
26
+ // default animation speeds
27
+ var DEFAULT_APPEAR_SPEED = 200
28
+ var DEFAULT_MOVE_SPEED = 200
29
+ var DEFAULT_SNAPBACK_SPEED = 60
30
+ var DEFAULT_SNAP_SPEED = 30
31
+ var DEFAULT_TRASH_SPEED = 100
32
+
33
+ // use unique class names to prevent clashing with anything else on the page
34
+ // and simplify selectors
35
+ // NOTE: these should never change
36
+ var CSS = {}
37
+ CSS['alpha'] = 'alpha-d2270'
38
+ CSS['black'] = 'black-3c85d'
39
+ CSS['board'] = 'board-b72b1'
40
+ CSS['chessboard'] = 'chessboard-63f37'
41
+ CSS['clearfix'] = 'clearfix-7da63'
42
+ CSS['highlight1'] = 'highlight1-32417'
43
+ CSS['highlight2'] = 'highlight2-9c5d2'
44
+ CSS['notation'] = 'notation-322f9'
45
+ CSS['numeric'] = 'numeric-fc462'
46
+ CSS['piece'] = 'piece-417db'
47
+ CSS['row'] = 'row-5277c'
48
+ CSS['sparePieces'] = 'spare-pieces-7492f'
49
+ CSS['sparePiecesBottom'] = 'spare-pieces-bottom-ae20f'
50
+ CSS['sparePiecesTop'] = 'spare-pieces-top-4028b'
51
+ CSS['square'] = 'square-55d63'
52
+ CSS['white'] = 'white-1e1d7'
53
+
54
+ // ---------------------------------------------------------------------------
55
+ // Misc Util Functions
56
+ // ---------------------------------------------------------------------------
57
+
58
+ function throttle (f, interval, scope) {
59
+ var timeout = 0
60
+ var shouldFire = false
61
+ var args = []
62
+
63
+ var handleTimeout = function () {
64
+ timeout = 0
65
+ if (shouldFire) {
66
+ shouldFire = false
67
+ fire()
68
+ }
69
+ }
70
+
71
+ var fire = function () {
72
+ timeout = window.setTimeout(handleTimeout, interval)
73
+ f.apply(scope, args)
74
+ }
75
+
76
+ return function (_args) {
77
+ args = arguments
78
+ if (!timeout) {
79
+ fire()
80
+ } else {
81
+ shouldFire = true
82
+ }
83
+ }
84
+ }
85
+
86
+ // function debounce (f, interval, scope) {
87
+ // var timeout = 0
88
+ // return function (_args) {
89
+ // window.clearTimeout(timeout)
90
+ // var args = arguments
91
+ // timeout = window.setTimeout(function () {
92
+ // f.apply(scope, args)
93
+ // }, interval)
94
+ // }
95
+ // }
96
+
97
+ function uuid () {
98
+ return 'xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx'.replace(/x/g, function (c) {
99
+ var r = (Math.random() * 16) | 0
100
+ return r.toString(16)
101
+ })
102
+ }
103
+
104
+ function deepCopy (thing) {
105
+ return JSON.parse(JSON.stringify(thing))
106
+ }
107
+
108
+ function parseSemVer (version) {
109
+ var tmp = version.split('.')
110
+ return {
111
+ major: parseInt(tmp[0], 10),
112
+ minor: parseInt(tmp[1], 10),
113
+ patch: parseInt(tmp[2], 10)
114
+ }
115
+ }
116
+
117
+ // returns true if version is >= minimum
118
+ function validSemanticVersion (version, minimum) {
119
+ version = parseSemVer(version)
120
+ minimum = parseSemVer(minimum)
121
+
122
+ var versionNum = (version.major * 100000 * 100000) +
123
+ (version.minor * 100000) +
124
+ version.patch
125
+ var minimumNum = (minimum.major * 100000 * 100000) +
126
+ (minimum.minor * 100000) +
127
+ minimum.patch
128
+
129
+ return versionNum >= minimumNum
130
+ }
131
+
132
+ function interpolateTemplate (str, obj) {
133
+ for (var key in obj) {
134
+ if (!obj.hasOwnProperty(key)) continue
135
+ var keyTemplateStr = '{' + key + '}'
136
+ var value = obj[key]
137
+ while (str.indexOf(keyTemplateStr) !== -1) {
138
+ str = str.replace(keyTemplateStr, value)
139
+ }
140
+ }
141
+ return str
142
+ }
143
+
144
+ if (RUN_ASSERTS) {
145
+ console.assert(interpolateTemplate('abc', {a: 'x'}) === 'abc')
146
+ console.assert(interpolateTemplate('{a}bc', {}) === '{a}bc')
147
+ console.assert(interpolateTemplate('{a}bc', {p: 'q'}) === '{a}bc')
148
+ console.assert(interpolateTemplate('{a}bc', {a: 'x'}) === 'xbc')
149
+ console.assert(interpolateTemplate('{a}bc{a}bc', {a: 'x'}) === 'xbcxbc')
150
+ console.assert(interpolateTemplate('{a}{a}{b}', {a: 'x', b: 'y'}) === 'xxy')
151
+ }
152
+
153
+ // ---------------------------------------------------------------------------
154
+ // Predicates
155
+ // ---------------------------------------------------------------------------
156
+
157
+ function isString (s) {
158
+ return typeof s === 'string'
159
+ }
160
+
161
+ function isFunction (f) {
162
+ return typeof f === 'function'
163
+ }
164
+
165
+ function isInteger (n) {
166
+ return typeof n === 'number' &&
167
+ isFinite(n) &&
168
+ Math.floor(n) === n
169
+ }
170
+
171
+ function validAnimationSpeed (speed) {
172
+ if (speed === 'fast' || speed === 'slow') return true
173
+ if (!isInteger(speed)) return false
174
+ return speed >= 0
175
+ }
176
+
177
+ function validThrottleRate (rate) {
178
+ return isInteger(rate) &&
179
+ rate >= 1
180
+ }
181
+
182
+ function validMove (move) {
183
+ // move should be a string
184
+ if (!isString(move)) return false
185
+
186
+ // move should be in the form of "e2-e4", "f6-d5"
187
+ var squares = move.split('-')
188
+ if (squares.length !== 2) return false
189
+
190
+ return validSquare(squares[0]) && validSquare(squares[1])
191
+ }
192
+
193
+ function validSquare (square) {
194
+ return isString(square) && square.search(/^[a-h][1-8]$/) !== -1
195
+ }
196
+
197
+ if (RUN_ASSERTS) {
198
+ console.assert(validSquare('a1'))
199
+ console.assert(validSquare('e2'))
200
+ console.assert(!validSquare('D2'))
201
+ console.assert(!validSquare('g9'))
202
+ console.assert(!validSquare('a'))
203
+ console.assert(!validSquare(true))
204
+ console.assert(!validSquare(null))
205
+ console.assert(!validSquare({}))
206
+ }
207
+
208
+ function validPieceCode (code) {
209
+ return isString(code) && code.search(/^[bw][KQRNBP]$/) !== -1
210
+ }
211
+
212
+ if (RUN_ASSERTS) {
213
+ console.assert(validPieceCode('bP'))
214
+ console.assert(validPieceCode('bK'))
215
+ console.assert(validPieceCode('wK'))
216
+ console.assert(validPieceCode('wR'))
217
+ console.assert(!validPieceCode('WR'))
218
+ console.assert(!validPieceCode('Wr'))
219
+ console.assert(!validPieceCode('a'))
220
+ console.assert(!validPieceCode(true))
221
+ console.assert(!validPieceCode(null))
222
+ console.assert(!validPieceCode({}))
223
+ }
224
+
225
+ function validFen (fen) {
226
+ if (!isString(fen)) return false
227
+
228
+ // cut off any move, castling, etc info from the end
229
+ // we're only interested in position information
230
+ fen = fen.replace(/ .+$/, '')
231
+
232
+ // expand the empty square numbers to just 1s
233
+ fen = expandFenEmptySquares(fen)
234
+
235
+ // FEN should be 8 sections separated by slashes
236
+ var chunks = fen.split('/')
237
+ if (chunks.length !== 8) return false
238
+
239
+ // check each section
240
+ for (var i = 0; i < 8; i++) {
241
+ if (chunks[i].length !== 8 ||
242
+ chunks[i].search(/[^kqrnbpKQRNBP1]/) !== -1) {
243
+ return false
244
+ }
245
+ }
246
+
247
+ return true
248
+ }
249
+
250
+ if (RUN_ASSERTS) {
251
+ console.assert(validFen(START_FEN))
252
+ console.assert(validFen('8/8/8/8/8/8/8/8'))
253
+ console.assert(validFen('r1bqkbnr/pppp1ppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R'))
254
+ console.assert(validFen('3r3r/1p4pp/2nb1k2/pP3p2/8/PB2PN2/p4PPP/R4RK1 b - - 0 1'))
255
+ console.assert(!validFen('3r3z/1p4pp/2nb1k2/pP3p2/8/PB2PN2/p4PPP/R4RK1 b - - 0 1'))
256
+ console.assert(!validFen('anbqkbnr/8/8/8/8/8/PPPPPPPP/8'))
257
+ console.assert(!validFen('rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/'))
258
+ console.assert(!validFen('rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBN'))
259
+ console.assert(!validFen('888888/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR'))
260
+ console.assert(!validFen('888888/pppppppp/74/8/8/8/PPPPPPPP/RNBQKBNR'))
261
+ console.assert(!validFen({}))
262
+ }
263
+
264
+ function validPositionObject (pos) {
265
+ if (!$.isPlainObject(pos)) return false
266
+
267
+ for (var i in pos) {
268
+ if (!pos.hasOwnProperty(i)) continue
269
+
270
+ if (!validSquare(i) || !validPieceCode(pos[i])) {
271
+ return false
272
+ }
273
+ }
274
+
275
+ return true
276
+ }
277
+
278
+ if (RUN_ASSERTS) {
279
+ console.assert(validPositionObject(START_POSITION))
280
+ console.assert(validPositionObject({}))
281
+ console.assert(validPositionObject({e2: 'wP'}))
282
+ console.assert(validPositionObject({e2: 'wP', d2: 'wP'}))
283
+ console.assert(!validPositionObject({e2: 'BP'}))
284
+ console.assert(!validPositionObject({y2: 'wP'}))
285
+ console.assert(!validPositionObject(null))
286
+ console.assert(!validPositionObject('start'))
287
+ console.assert(!validPositionObject(START_FEN))
288
+ }
289
+
290
+ function isTouchDevice () {
291
+ return 'ontouchstart' in document.documentElement
292
+ }
293
+
294
+ function validJQueryVersion () {
295
+ return typeof window.$ &&
296
+ $.fn &&
297
+ $.fn.jquery &&
298
+ validSemanticVersion($.fn.jquery, MINIMUM_JQUERY_VERSION)
299
+ }
300
+
301
+ // ---------------------------------------------------------------------------
302
+ // Chess Util Functions
303
+ // ---------------------------------------------------------------------------
304
+
305
+ // convert FEN piece code to bP, wK, etc
306
+ function fenToPieceCode (piece) {
307
+ // black piece
308
+ if (piece.toLowerCase() === piece) {
309
+ return 'b' + piece.toUpperCase()
310
+ }
311
+
312
+ // white piece
313
+ return 'w' + piece.toUpperCase()
314
+ }
315
+
316
+ // convert bP, wK, etc code to FEN structure
317
+ function pieceCodeToFen (piece) {
318
+ var pieceCodeLetters = piece.split('')
319
+
320
+ // white piece
321
+ if (pieceCodeLetters[0] === 'w') {
322
+ return pieceCodeLetters[1].toUpperCase()
323
+ }
324
+
325
+ // black piece
326
+ return pieceCodeLetters[1].toLowerCase()
327
+ }
328
+
329
+ // convert FEN string to position object
330
+ // returns false if the FEN string is invalid
331
+ function fenToObj (fen) {
332
+ if (!validFen(fen)) return false
333
+
334
+ // cut off any move, castling, etc info from the end
335
+ // we're only interested in position information
336
+ fen = fen.replace(/ .+$/, '')
337
+
338
+ var rows = fen.split('/')
339
+ var position = {}
340
+
341
+ var currentRow = 8
342
+ for (var i = 0; i < 8; i++) {
343
+ var row = rows[i].split('')
344
+ var colIdx = 0
345
+
346
+ // loop through each character in the FEN section
347
+ for (var j = 0; j < row.length; j++) {
348
+ // number / empty squares
349
+ if (row[j].search(/[1-8]/) !== -1) {
350
+ var numEmptySquares = parseInt(row[j], 10)
351
+ colIdx = colIdx + numEmptySquares
352
+ } else {
353
+ // piece
354
+ var square = COLUMNS[colIdx] + currentRow
355
+ position[square] = fenToPieceCode(row[j])
356
+ colIdx = colIdx + 1
357
+ }
358
+ }
359
+
360
+ currentRow = currentRow - 1
361
+ }
362
+
363
+ return position
364
+ }
365
+
366
+ // position object to FEN string
367
+ // returns false if the obj is not a valid position object
368
+ function objToFen (obj) {
369
+ if (!validPositionObject(obj)) return false
370
+
371
+ var fen = ''
372
+
373
+ var currentRow = 8
374
+ for (var i = 0; i < 8; i++) {
375
+ for (var j = 0; j < 8; j++) {
376
+ var square = COLUMNS[j] + currentRow
377
+
378
+ // piece exists
379
+ if (obj.hasOwnProperty(square)) {
380
+ fen = fen + pieceCodeToFen(obj[square])
381
+ } else {
382
+ // empty space
383
+ fen = fen + '1'
384
+ }
385
+ }
386
+
387
+ if (i !== 7) {
388
+ fen = fen + '/'
389
+ }
390
+
391
+ currentRow = currentRow - 1
392
+ }
393
+
394
+ // squeeze the empty numbers together
395
+ fen = squeezeFenEmptySquares(fen)
396
+
397
+ return fen
398
+ }
399
+
400
+ if (RUN_ASSERTS) {
401
+ console.assert(objToFen(START_POSITION) === START_FEN)
402
+ console.assert(objToFen({}) === '8/8/8/8/8/8/8/8')
403
+ console.assert(objToFen({a2: 'wP', 'b2': 'bP'}) === '8/8/8/8/8/8/Pp6/8')
404
+ }
405
+
406
+ function squeezeFenEmptySquares (fen) {
407
+ return fen.replace(/11111111/g, '8')
408
+ .replace(/1111111/g, '7')
409
+ .replace(/111111/g, '6')
410
+ .replace(/11111/g, '5')
411
+ .replace(/1111/g, '4')
412
+ .replace(/111/g, '3')
413
+ .replace(/11/g, '2')
414
+ }
415
+
416
+ function expandFenEmptySquares (fen) {
417
+ return fen.replace(/8/g, '11111111')
418
+ .replace(/7/g, '1111111')
419
+ .replace(/6/g, '111111')
420
+ .replace(/5/g, '11111')
421
+ .replace(/4/g, '1111')
422
+ .replace(/3/g, '111')
423
+ .replace(/2/g, '11')
424
+ }
425
+
426
+ // returns the distance between two squares
427
+ function squareDistance (squareA, squareB) {
428
+ var squareAArray = squareA.split('')
429
+ var squareAx = COLUMNS.indexOf(squareAArray[0]) + 1
430
+ var squareAy = parseInt(squareAArray[1], 10)
431
+
432
+ var squareBArray = squareB.split('')
433
+ var squareBx = COLUMNS.indexOf(squareBArray[0]) + 1
434
+ var squareBy = parseInt(squareBArray[1], 10)
435
+
436
+ var xDelta = Math.abs(squareAx - squareBx)
437
+ var yDelta = Math.abs(squareAy - squareBy)
438
+
439
+ if (xDelta >= yDelta) return xDelta
440
+ return yDelta
441
+ }
442
+
443
+ // returns the square of the closest instance of piece
444
+ // returns false if no instance of piece is found in position
445
+ function findClosestPiece (position, piece, square) {
446
+ // create array of closest squares from square
447
+ var closestSquares = createRadius(square)
448
+
449
+ // search through the position in order of distance for the piece
450
+ for (var i = 0; i < closestSquares.length; i++) {
451
+ var s = closestSquares[i]
452
+
453
+ if (position.hasOwnProperty(s) && position[s] === piece) {
454
+ return s
455
+ }
456
+ }
457
+
458
+ return false
459
+ }
460
+
461
+ // returns an array of closest squares from square
462
+ function createRadius (square) {
463
+ var squares = []
464
+
465
+ // calculate distance of all squares
466
+ for (var i = 0; i < 8; i++) {
467
+ for (var j = 0; j < 8; j++) {
468
+ var s = COLUMNS[i] + (j + 1)
469
+
470
+ // skip the square we're starting from
471
+ if (square === s) continue
472
+
473
+ squares.push({
474
+ square: s,
475
+ distance: squareDistance(square, s)
476
+ })
477
+ }
478
+ }
479
+
480
+ // sort by distance
481
+ squares.sort(function (a, b) {
482
+ return a.distance - b.distance
483
+ })
484
+
485
+ // just return the square code
486
+ var surroundingSquares = []
487
+ for (i = 0; i < squares.length; i++) {
488
+ surroundingSquares.push(squares[i].square)
489
+ }
490
+
491
+ return surroundingSquares
492
+ }
493
+
494
+ // given a position and a set of moves, return a new position
495
+ // with the moves executed
496
+ function calculatePositionFromMoves (position, moves) {
497
+ var newPosition = deepCopy(position)
498
+
499
+ for (var i in moves) {
500
+ if (!moves.hasOwnProperty(i)) continue
501
+
502
+ // skip the move if the position doesn't have a piece on the source square
503
+ if (!newPosition.hasOwnProperty(i)) continue
504
+
505
+ var piece = newPosition[i]
506
+ delete newPosition[i]
507
+ newPosition[moves[i]] = piece
508
+ }
509
+
510
+ return newPosition
511
+ }
512
+
513
+ // TODO: add some asserts here for calculatePositionFromMoves
514
+
515
+ // ---------------------------------------------------------------------------
516
+ // HTML
517
+ // ---------------------------------------------------------------------------
518
+
519
+ function buildContainerHTML (hasSparePieces) {
520
+ var html = '<div class="{chessboard}">'
521
+
522
+ if (hasSparePieces) {
523
+ html += '<div class="{sparePieces} {sparePiecesTop}"></div>'
524
+ }
525
+
526
+ html += '<div class="{board}"></div>'
527
+
528
+ if (hasSparePieces) {
529
+ html += '<div class="{sparePieces} {sparePiecesBottom}"></div>'
530
+ }
531
+
532
+ html += '</div>'
533
+
534
+ return interpolateTemplate(html, CSS)
535
+ }
536
+
537
+ // ---------------------------------------------------------------------------
538
+ // Config
539
+ // ---------------------------------------------------------------------------
540
+
541
+ function expandConfigArgumentShorthand (config) {
542
+ if (config === 'start') {
543
+ config = {position: deepCopy(START_POSITION)}
544
+ } else if (validFen(config)) {
545
+ config = {position: fenToObj(config)}
546
+ } else if (validPositionObject(config)) {
547
+ config = {position: deepCopy(config)}
548
+ }
549
+
550
+ // config must be an object
551
+ if (!$.isPlainObject(config)) config = {}
552
+
553
+ return config
554
+ }
555
+
556
+ // validate config / set default options
557
+ function expandConfig (config) {
558
+ // default for orientation is white
559
+ if (config.orientation !== 'black') config.orientation = 'white'
560
+
561
+ // default for showNotation is true
562
+ if (config.showNotation !== false) config.showNotation = true
563
+
564
+ // default for draggable is false
565
+ if (config.draggable !== true) config.draggable = false
566
+
567
+ // default for dropOffBoard is 'snapback'
568
+ if (config.dropOffBoard !== 'trash') config.dropOffBoard = 'snapback'
569
+
570
+ // default for sparePieces is false
571
+ if (config.sparePieces !== true) config.sparePieces = false
572
+
573
+ // draggable must be true if sparePieces is enabled
574
+ if (config.sparePieces) config.draggable = true
575
+
576
+ // default piece theme is wikipedia
577
+ if (!config.hasOwnProperty('pieceTheme') ||
578
+ (!isString(config.pieceTheme) && !isFunction(config.pieceTheme))) {
579
+ config.pieceTheme = 'img/chesspieces/wikipedia/{piece}.png'
580
+ }
581
+
582
+ // animation speeds
583
+ if (!validAnimationSpeed(config.appearSpeed)) config.appearSpeed = DEFAULT_APPEAR_SPEED
584
+ if (!validAnimationSpeed(config.moveSpeed)) config.moveSpeed = DEFAULT_MOVE_SPEED
585
+ if (!validAnimationSpeed(config.snapbackSpeed)) config.snapbackSpeed = DEFAULT_SNAPBACK_SPEED
586
+ if (!validAnimationSpeed(config.snapSpeed)) config.snapSpeed = DEFAULT_SNAP_SPEED
587
+ if (!validAnimationSpeed(config.trashSpeed)) config.trashSpeed = DEFAULT_TRASH_SPEED
588
+
589
+ // throttle rate
590
+ if (!validThrottleRate(config.dragThrottleRate)) config.dragThrottleRate = DEFAULT_DRAG_THROTTLE_RATE
591
+
592
+ return config
593
+ }
594
+
595
+ // ---------------------------------------------------------------------------
596
+ // Dependencies
597
+ // ---------------------------------------------------------------------------
598
+
599
+ // check for a compatible version of jQuery
600
+ function checkJQuery () {
601
+ if (!validJQueryVersion()) {
602
+ var errorMsg = 'Chessboard Error 1005: Unable to find a valid version of jQuery. ' +
603
+ 'Please include jQuery ' + MINIMUM_JQUERY_VERSION + ' or higher on the page' +
604
+ '\n\n' +
605
+ 'Exiting' + ELLIPSIS
606
+ window.alert(errorMsg)
607
+ return false
608
+ }
609
+
610
+ return true
611
+ }
612
+
613
+ // return either boolean false or the $container element
614
+ function checkContainerArg (containerElOrString) {
615
+ if (containerElOrString === '') {
616
+ var errorMsg1 = 'Chessboard Error 1001: ' +
617
+ 'The first argument to Chessboard() cannot be an empty string.' +
618
+ '\n\n' +
619
+ 'Exiting' + ELLIPSIS
620
+ window.alert(errorMsg1)
621
+ return false
622
+ }
623
+
624
+ // convert containerEl to query selector if it is a string
625
+ if (isString(containerElOrString) &&
626
+ containerElOrString.charAt(0) !== '#') {
627
+ containerElOrString = '#' + containerElOrString
628
+ }
629
+
630
+ // containerEl must be something that becomes a jQuery collection of size 1
631
+ var $container = $(containerElOrString)
632
+ if ($container.length !== 1) {
633
+ var errorMsg2 = 'Chessboard Error 1003: ' +
634
+ 'The first argument to Chessboard() must be the ID of a DOM node, ' +
635
+ 'an ID query selector, or a single DOM node.' +
636
+ '\n\n' +
637
+ 'Exiting' + ELLIPSIS
638
+ window.alert(errorMsg2)
639
+ return false
640
+ }
641
+
642
+ return $container
643
+ }
644
+
645
+ // ---------------------------------------------------------------------------
646
+ // Constructor
647
+ // ---------------------------------------------------------------------------
648
+
649
+ function constructor (containerElOrString, config) {
650
+ // first things first: check basic dependencies
651
+ if (!checkJQuery()) return null
652
+ var $container = checkContainerArg(containerElOrString)
653
+ if (!$container) return null
654
+
655
+ // ensure the config object is what we expect
656
+ config = expandConfigArgumentShorthand(config)
657
+ config = expandConfig(config)
658
+
659
+ // DOM elements
660
+ var $board = null
661
+ var $draggedPiece = null
662
+ var $sparePiecesTop = null
663
+ var $sparePiecesBottom = null
664
+
665
+ // constructor return object
666
+ var widget = {}
667
+
668
+ // -------------------------------------------------------------------------
669
+ // Stateful
670
+ // -------------------------------------------------------------------------
671
+
672
+ var boardBorderSize = 2
673
+ var currentOrientation = 'white'
674
+ var currentPosition = {}
675
+ var draggedPiece = null
676
+ var draggedPieceLocation = null
677
+ var draggedPieceSource = null
678
+ var isDragging = false
679
+ var sparePiecesElsIds = {}
680
+ var squareElsIds = {}
681
+ var squareElsOffsets = {}
682
+ var squareSize = 16
683
+
684
+ // -------------------------------------------------------------------------
685
+ // Validation / Errors
686
+ // -------------------------------------------------------------------------
687
+
688
+ function error (code, msg, obj) {
689
+ // do nothing if showErrors is not set
690
+ if (
691
+ config.hasOwnProperty('showErrors') !== true ||
692
+ config.showErrors === false
693
+ ) {
694
+ return
695
+ }
696
+
697
+ var errorText = 'Chessboard Error ' + code + ': ' + msg
698
+
699
+ // print to console
700
+ if (
701
+ config.showErrors === 'console' &&
702
+ typeof console === 'object' &&
703
+ typeof console.log === 'function'
704
+ ) {
705
+ console.log(errorText)
706
+ if (arguments.length >= 2) {
707
+ console.log(obj)
708
+ }
709
+ return
710
+ }
711
+
712
+ // alert errors
713
+ if (config.showErrors === 'alert') {
714
+ if (obj) {
715
+ errorText += '\n\n' + JSON.stringify(obj)
716
+ }
717
+ window.alert(errorText)
718
+ return
719
+ }
720
+
721
+ // custom function
722
+ if (isFunction(config.showErrors)) {
723
+ config.showErrors(code, msg, obj)
724
+ }
725
+ }
726
+
727
+ function setInitialState () {
728
+ currentOrientation = config.orientation
729
+
730
+ // make sure position is valid
731
+ if (config.hasOwnProperty('position')) {
732
+ if (config.position === 'start') {
733
+ currentPosition = deepCopy(START_POSITION)
734
+ } else if (validFen(config.position)) {
735
+ currentPosition = fenToObj(config.position)
736
+ } else if (validPositionObject(config.position)) {
737
+ currentPosition = deepCopy(config.position)
738
+ } else {
739
+ error(
740
+ 7263,
741
+ 'Invalid value passed to config.position.',
742
+ config.position
743
+ )
744
+ }
745
+ }
746
+ }
747
+
748
+ // -------------------------------------------------------------------------
749
+ // DOM Misc
750
+ // -------------------------------------------------------------------------
751
+
752
+ // calculates square size based on the width of the container
753
+ // got a little CSS black magic here, so let me explain:
754
+ // get the width of the container element (could be anything), reduce by 1 for
755
+ // fudge factor, and then keep reducing until we find an exact mod 8 for
756
+ // our square size
757
+ function calculateSquareSize () {
758
+ var containerWidth = parseInt($container.width(), 10)
759
+
760
+ // defensive, prevent infinite loop
761
+ if (!containerWidth || containerWidth <= 0) {
762
+ return 0
763
+ }
764
+
765
+ // pad one pixel
766
+ var boardWidth = containerWidth - 1
767
+
768
+ while (boardWidth % 8 !== 0 && boardWidth > 0) {
769
+ boardWidth = boardWidth - 1
770
+ }
771
+
772
+ return boardWidth / 8
773
+ }
774
+
775
+ // create random IDs for elements
776
+ function createElIds () {
777
+ // squares on the board
778
+ for (var i = 0; i < COLUMNS.length; i++) {
779
+ for (var j = 1; j <= 8; j++) {
780
+ var square = COLUMNS[i] + j
781
+ squareElsIds[square] = square + '-' + uuid()
782
+ }
783
+ }
784
+
785
+ // spare pieces
786
+ var pieces = 'KQRNBP'.split('')
787
+ for (i = 0; i < pieces.length; i++) {
788
+ var whitePiece = 'w' + pieces[i]
789
+ var blackPiece = 'b' + pieces[i]
790
+ sparePiecesElsIds[whitePiece] = whitePiece + '-' + uuid()
791
+ sparePiecesElsIds[blackPiece] = blackPiece + '-' + uuid()
792
+ }
793
+ }
794
+
795
+ // -------------------------------------------------------------------------
796
+ // Markup Building
797
+ // -------------------------------------------------------------------------
798
+
799
+ function buildBoardHTML (orientation) {
800
+ if (orientation !== 'black') {
801
+ orientation = 'white'
802
+ }
803
+
804
+ var html = ''
805
+
806
+ // algebraic notation / orientation
807
+ var alpha = deepCopy(COLUMNS)
808
+ var row = 8
809
+ if (orientation === 'black') {
810
+ alpha.reverse()
811
+ row = 1
812
+ }
813
+
814
+ var squareColor = 'white'
815
+ for (var i = 0; i < 8; i++) {
816
+ html += '<div class="{row}">'
817
+ for (var j = 0; j < 8; j++) {
818
+ var square = alpha[j] + row
819
+
820
+ html += '<div class="{square} ' + CSS[squareColor] + ' ' +
821
+ 'square-' + square + '" ' +
822
+ 'style="width:' + squareSize + 'px;height:' + squareSize + 'px;" ' +
823
+ 'id="' + squareElsIds[square] + '" ' +
824
+ 'data-square="' + square + '">'
825
+
826
+ if (config.showNotation) {
827
+ // alpha notation
828
+ if ((orientation === 'white' && row === 1) ||
829
+ (orientation === 'black' && row === 8)) {
830
+ html += '<div class="{notation} {alpha}">' + alpha[j] + '</div>'
831
+ }
832
+
833
+ // numeric notation
834
+ if (j === 0) {
835
+ html += '<div class="{notation} {numeric}">' + row + '</div>'
836
+ }
837
+ }
838
+
839
+ html += '</div>' // end .square
840
+
841
+ squareColor = (squareColor === 'white') ? 'black' : 'white'
842
+ }
843
+ html += '<div class="{clearfix}"></div></div>'
844
+
845
+ squareColor = (squareColor === 'white') ? 'black' : 'white'
846
+
847
+ if (orientation === 'white') {
848
+ row = row - 1
849
+ } else {
850
+ row = row + 1
851
+ }
852
+ }
853
+
854
+ return interpolateTemplate(html, CSS)
855
+ }
856
+
857
+ function buildPieceImgSrc (piece) {
858
+ if (isFunction(config.pieceTheme)) {
859
+ return config.pieceTheme(piece)
860
+ }
861
+
862
+ if (isString(config.pieceTheme)) {
863
+ return interpolateTemplate(config.pieceTheme, {piece: piece})
864
+ }
865
+
866
+ // NOTE: this should never happen
867
+ error(8272, 'Unable to build image source for config.pieceTheme.')
868
+ return ''
869
+ }
870
+
871
+ function buildPieceHTML (piece, hidden, id) {
872
+ var html = '<img src="' + buildPieceImgSrc(piece) + '" '
873
+ if (isString(id) && id !== '') {
874
+ html += 'id="' + id + '" '
875
+ }
876
+ html += 'alt="" ' +
877
+ 'class="{piece}" ' +
878
+ 'data-piece="' + piece + '" ' +
879
+ 'style="width:' + squareSize + 'px;' + 'height:' + squareSize + 'px;'
880
+
881
+ if (hidden) {
882
+ html += 'display:none;'
883
+ }
884
+
885
+ html += '" />'
886
+
887
+ return interpolateTemplate(html, CSS)
888
+ }
889
+
890
+ function buildSparePiecesHTML (color) {
891
+ var pieces = ['wK', 'wQ', 'wR', 'wB', 'wN', 'wP']
892
+ if (color === 'black') {
893
+ pieces = ['bK', 'bQ', 'bR', 'bB', 'bN', 'bP']
894
+ }
895
+
896
+ var html = ''
897
+ for (var i = 0; i < pieces.length; i++) {
898
+ html += buildPieceHTML(pieces[i], false, sparePiecesElsIds[pieces[i]])
899
+ }
900
+
901
+ return html
902
+ }
903
+
904
+ // -------------------------------------------------------------------------
905
+ // Animations
906
+ // -------------------------------------------------------------------------
907
+
908
+ function animateSquareToSquare (src, dest, piece, completeFn) {
909
+ // get information about the source and destination squares
910
+ var $srcSquare = $('#' + squareElsIds[src])
911
+ var srcSquarePosition = $srcSquare.offset()
912
+ var $destSquare = $('#' + squareElsIds[dest])
913
+ var destSquarePosition = $destSquare.offset()
914
+
915
+ // create the animated piece and absolutely position it
916
+ // over the source square
917
+ var animatedPieceId = uuid()
918
+ $('body').append(buildPieceHTML(piece, true, animatedPieceId))
919
+ var $animatedPiece = $('#' + animatedPieceId)
920
+ $animatedPiece.css({
921
+ display: '',
922
+ position: 'absolute',
923
+ top: srcSquarePosition.top,
924
+ left: srcSquarePosition.left
925
+ })
926
+
927
+ // remove original piece from source square
928
+ $srcSquare.find('.' + CSS.piece).remove()
929
+
930
+ function onFinishAnimation1 () {
931
+ // add the "real" piece to the destination square
932
+ $destSquare.append(buildPieceHTML(piece))
933
+
934
+ // remove the animated piece
935
+ $animatedPiece.remove()
936
+
937
+ // run complete function
938
+ if (isFunction(completeFn)) {
939
+ completeFn()
940
+ }
941
+ }
942
+
943
+ // animate the piece to the destination square
944
+ var opts = {
945
+ duration: config.moveSpeed,
946
+ complete: onFinishAnimation1
947
+ }
948
+ $animatedPiece.animate(destSquarePosition, opts)
949
+ }
950
+
951
+ function animateSparePieceToSquare (piece, dest, completeFn) {
952
+ var srcOffset = $('#' + sparePiecesElsIds[piece]).offset()
953
+ var $destSquare = $('#' + squareElsIds[dest])
954
+ var destOffset = $destSquare.offset()
955
+
956
+ // create the animate piece
957
+ var pieceId = uuid()
958
+ $('body').append(buildPieceHTML(piece, true, pieceId))
959
+ var $animatedPiece = $('#' + pieceId)
960
+ $animatedPiece.css({
961
+ display: '',
962
+ position: 'absolute',
963
+ left: srcOffset.left,
964
+ top: srcOffset.top
965
+ })
966
+
967
+ // on complete
968
+ function onFinishAnimation2 () {
969
+ // add the "real" piece to the destination square
970
+ $destSquare.find('.' + CSS.piece).remove()
971
+ $destSquare.append(buildPieceHTML(piece))
972
+
973
+ // remove the animated piece
974
+ $animatedPiece.remove()
975
+
976
+ // run complete function
977
+ if (isFunction(completeFn)) {
978
+ completeFn()
979
+ }
980
+ }
981
+
982
+ // animate the piece to the destination square
983
+ var opts = {
984
+ duration: config.moveSpeed,
985
+ complete: onFinishAnimation2
986
+ }
987
+ $animatedPiece.animate(destOffset, opts)
988
+ }
989
+
990
+ // execute an array of animations
991
+ function doAnimations (animations, oldPos, newPos) {
992
+ if (animations.length === 0) return
993
+
994
+ var numFinished = 0
995
+ function onFinishAnimation3 () {
996
+ // exit if all the animations aren't finished
997
+ numFinished = numFinished + 1
998
+ if (numFinished !== animations.length) return
999
+
1000
+ drawPositionInstant()
1001
+
1002
+ // run their onMoveEnd function
1003
+ if (isFunction(config.onMoveEnd)) {
1004
+ config.onMoveEnd(deepCopy(oldPos), deepCopy(newPos))
1005
+ }
1006
+ }
1007
+
1008
+ for (var i = 0; i < animations.length; i++) {
1009
+ var animation = animations[i]
1010
+
1011
+ // clear a piece
1012
+ if (animation.type === 'clear') {
1013
+ $('#' + squareElsIds[animation.square] + ' .' + CSS.piece)
1014
+ .fadeOut(config.trashSpeed, onFinishAnimation3)
1015
+
1016
+ // add a piece with no spare pieces - fade the piece onto the square
1017
+ } else if (animation.type === 'add' && !config.sparePieces) {
1018
+ $('#' + squareElsIds[animation.square])
1019
+ .append(buildPieceHTML(animation.piece, true))
1020
+ .find('.' + CSS.piece)
1021
+ .fadeIn(config.appearSpeed, onFinishAnimation3)
1022
+
1023
+ // add a piece with spare pieces - animate from the spares
1024
+ } else if (animation.type === 'add' && config.sparePieces) {
1025
+ animateSparePieceToSquare(animation.piece, animation.square, onFinishAnimation3)
1026
+
1027
+ // move a piece from squareA to squareB
1028
+ } else if (animation.type === 'move') {
1029
+ animateSquareToSquare(animation.source, animation.destination, animation.piece, onFinishAnimation3)
1030
+ }
1031
+ }
1032
+ }
1033
+
1034
+ // calculate an array of animations that need to happen in order to get
1035
+ // from pos1 to pos2
1036
+ function calculateAnimations (pos1, pos2) {
1037
+ // make copies of both
1038
+ pos1 = deepCopy(pos1)
1039
+ pos2 = deepCopy(pos2)
1040
+
1041
+ var animations = []
1042
+ var squaresMovedTo = {}
1043
+
1044
+ // remove pieces that are the same in both positions
1045
+ for (var i in pos2) {
1046
+ if (!pos2.hasOwnProperty(i)) continue
1047
+
1048
+ if (pos1.hasOwnProperty(i) && pos1[i] === pos2[i]) {
1049
+ delete pos1[i]
1050
+ delete pos2[i]
1051
+ }
1052
+ }
1053
+
1054
+ // find all the "move" animations
1055
+ for (i in pos2) {
1056
+ if (!pos2.hasOwnProperty(i)) continue
1057
+
1058
+ var closestPiece = findClosestPiece(pos1, pos2[i], i)
1059
+ if (closestPiece) {
1060
+ animations.push({
1061
+ type: 'move',
1062
+ source: closestPiece,
1063
+ destination: i,
1064
+ piece: pos2[i]
1065
+ })
1066
+
1067
+ delete pos1[closestPiece]
1068
+ delete pos2[i]
1069
+ squaresMovedTo[i] = true
1070
+ }
1071
+ }
1072
+
1073
+ // "add" animations
1074
+ for (i in pos2) {
1075
+ if (!pos2.hasOwnProperty(i)) continue
1076
+
1077
+ animations.push({
1078
+ type: 'add',
1079
+ square: i,
1080
+ piece: pos2[i]
1081
+ })
1082
+
1083
+ delete pos2[i]
1084
+ }
1085
+
1086
+ // "clear" animations
1087
+ for (i in pos1) {
1088
+ if (!pos1.hasOwnProperty(i)) continue
1089
+
1090
+ // do not clear a piece if it is on a square that is the result
1091
+ // of a "move", ie: a piece capture
1092
+ if (squaresMovedTo.hasOwnProperty(i)) continue
1093
+
1094
+ animations.push({
1095
+ type: 'clear',
1096
+ square: i,
1097
+ piece: pos1[i]
1098
+ })
1099
+
1100
+ delete pos1[i]
1101
+ }
1102
+
1103
+ return animations
1104
+ }
1105
+
1106
+ // -------------------------------------------------------------------------
1107
+ // Control Flow
1108
+ // -------------------------------------------------------------------------
1109
+
1110
+ function drawPositionInstant () {
1111
+ // clear the board
1112
+ $board.find('.' + CSS.piece).remove()
1113
+
1114
+ // add the pieces
1115
+ for (var i in currentPosition) {
1116
+ if (!currentPosition.hasOwnProperty(i)) continue
1117
+
1118
+ $('#' + squareElsIds[i]).append(buildPieceHTML(currentPosition[i]))
1119
+ }
1120
+ }
1121
+
1122
+ function drawBoard () {
1123
+ $board.html(buildBoardHTML(currentOrientation, squareSize, config.showNotation))
1124
+ drawPositionInstant()
1125
+
1126
+ if (config.sparePieces) {
1127
+ if (currentOrientation === 'white') {
1128
+ $sparePiecesTop.html(buildSparePiecesHTML('black'))
1129
+ $sparePiecesBottom.html(buildSparePiecesHTML('white'))
1130
+ } else {
1131
+ $sparePiecesTop.html(buildSparePiecesHTML('white'))
1132
+ $sparePiecesBottom.html(buildSparePiecesHTML('black'))
1133
+ }
1134
+ }
1135
+ }
1136
+
1137
+ function setCurrentPosition (position) {
1138
+ var oldPos = deepCopy(currentPosition)
1139
+ var newPos = deepCopy(position)
1140
+ var oldFen = objToFen(oldPos)
1141
+ var newFen = objToFen(newPos)
1142
+
1143
+ // do nothing if no change in position
1144
+ if (oldFen === newFen) return
1145
+
1146
+ // run their onChange function
1147
+ if (isFunction(config.onChange)) {
1148
+ config.onChange(oldPos, newPos)
1149
+ }
1150
+
1151
+ // update state
1152
+ currentPosition = position
1153
+ }
1154
+
1155
+ function isXYOnSquare (x, y) {
1156
+ for (var i in squareElsOffsets) {
1157
+ if (!squareElsOffsets.hasOwnProperty(i)) continue
1158
+
1159
+ var s = squareElsOffsets[i]
1160
+ if (x >= s.left &&
1161
+ x < s.left + squareSize &&
1162
+ y >= s.top &&
1163
+ y < s.top + squareSize) {
1164
+ return i
1165
+ }
1166
+ }
1167
+
1168
+ return 'offboard'
1169
+ }
1170
+
1171
+ // records the XY coords of every square into memory
1172
+ function captureSquareOffsets () {
1173
+ squareElsOffsets = {}
1174
+
1175
+ for (var i in squareElsIds) {
1176
+ if (!squareElsIds.hasOwnProperty(i)) continue
1177
+
1178
+ squareElsOffsets[i] = $('#' + squareElsIds[i]).offset()
1179
+ }
1180
+ }
1181
+
1182
+ function removeSquareHighlights () {
1183
+ $board
1184
+ .find('.' + CSS.square)
1185
+ .removeClass(CSS.highlight1 + ' ' + CSS.highlight2)
1186
+ }
1187
+
1188
+ function snapbackDraggedPiece () {
1189
+ // there is no "snapback" for spare pieces
1190
+ if (draggedPieceSource === 'spare') {
1191
+ trashDraggedPiece()
1192
+ return
1193
+ }
1194
+
1195
+ removeSquareHighlights()
1196
+
1197
+ // animation complete
1198
+ function complete () {
1199
+ drawPositionInstant()
1200
+ $draggedPiece.css('display', 'none')
1201
+
1202
+ // run their onSnapbackEnd function
1203
+ if (isFunction(config.onSnapbackEnd)) {
1204
+ config.onSnapbackEnd(
1205
+ draggedPiece,
1206
+ draggedPieceSource,
1207
+ deepCopy(currentPosition),
1208
+ currentOrientation
1209
+ )
1210
+ }
1211
+ }
1212
+
1213
+ // get source square position
1214
+ var sourceSquarePosition = $('#' + squareElsIds[draggedPieceSource]).offset()
1215
+
1216
+ // animate the piece to the target square
1217
+ var opts = {
1218
+ duration: config.snapbackSpeed,
1219
+ complete: complete
1220
+ }
1221
+ $draggedPiece.animate(sourceSquarePosition, opts)
1222
+
1223
+ // set state
1224
+ isDragging = false
1225
+ }
1226
+
1227
+ function trashDraggedPiece () {
1228
+ removeSquareHighlights()
1229
+
1230
+ // remove the source piece
1231
+ var newPosition = deepCopy(currentPosition)
1232
+ delete newPosition[draggedPieceSource]
1233
+ setCurrentPosition(newPosition)
1234
+
1235
+ // redraw the position
1236
+ drawPositionInstant()
1237
+
1238
+ // hide the dragged piece
1239
+ $draggedPiece.fadeOut(config.trashSpeed)
1240
+
1241
+ // set state
1242
+ isDragging = false
1243
+ }
1244
+
1245
+ function dropDraggedPieceOnSquare (square) {
1246
+ removeSquareHighlights()
1247
+
1248
+ // update position
1249
+ var newPosition = deepCopy(currentPosition)
1250
+ delete newPosition[draggedPieceSource]
1251
+ newPosition[square] = draggedPiece
1252
+ setCurrentPosition(newPosition)
1253
+
1254
+ // get target square information
1255
+ var targetSquarePosition = $('#' + squareElsIds[square]).offset()
1256
+
1257
+ // animation complete
1258
+ function onAnimationComplete () {
1259
+ drawPositionInstant()
1260
+ $draggedPiece.css('display', 'none')
1261
+
1262
+ // execute their onSnapEnd function
1263
+ if (isFunction(config.onSnapEnd)) {
1264
+ config.onSnapEnd(draggedPieceSource, square, draggedPiece)
1265
+ }
1266
+ }
1267
+
1268
+ // snap the piece to the target square
1269
+ var opts = {
1270
+ duration: config.snapSpeed,
1271
+ complete: onAnimationComplete
1272
+ }
1273
+ $draggedPiece.animate(targetSquarePosition, opts)
1274
+
1275
+ // set state
1276
+ isDragging = false
1277
+ }
1278
+
1279
+ function beginDraggingPiece (source, piece, x, y) {
1280
+ // run their custom onDragStart function
1281
+ // their custom onDragStart function can cancel drag start
1282
+ if (isFunction(config.onDragStart) &&
1283
+ config.onDragStart(source, piece, deepCopy(currentPosition), currentOrientation) === false) {
1284
+ return
1285
+ }
1286
+
1287
+ // set state
1288
+ isDragging = true
1289
+ draggedPiece = piece
1290
+ draggedPieceSource = source
1291
+
1292
+ // if the piece came from spare pieces, location is offboard
1293
+ if (source === 'spare') {
1294
+ draggedPieceLocation = 'offboard'
1295
+ } else {
1296
+ draggedPieceLocation = source
1297
+ }
1298
+
1299
+ // capture the x, y coords of all squares in memory
1300
+ captureSquareOffsets()
1301
+
1302
+ // create the dragged piece
1303
+ $draggedPiece.attr('src', buildPieceImgSrc(piece)).css({
1304
+ display: '',
1305
+ position: 'absolute',
1306
+ left: x - squareSize / 2,
1307
+ top: y - squareSize / 2
1308
+ })
1309
+
1310
+ if (source !== 'spare') {
1311
+ // highlight the source square and hide the piece
1312
+ $('#' + squareElsIds[source])
1313
+ .addClass(CSS.highlight1)
1314
+ .find('.' + CSS.piece)
1315
+ .css('display', 'none')
1316
+ }
1317
+ }
1318
+
1319
+ function updateDraggedPiece (x, y) {
1320
+ // put the dragged piece over the mouse cursor
1321
+ $draggedPiece.css({
1322
+ left: x - squareSize / 2,
1323
+ top: y - squareSize / 2
1324
+ })
1325
+
1326
+ // get location
1327
+ var location = isXYOnSquare(x, y)
1328
+
1329
+ // do nothing if the location has not changed
1330
+ if (location === draggedPieceLocation) return
1331
+
1332
+ // remove highlight from previous square
1333
+ if (validSquare(draggedPieceLocation)) {
1334
+ $('#' + squareElsIds[draggedPieceLocation]).removeClass(CSS.highlight2)
1335
+ }
1336
+
1337
+ // add highlight to new square
1338
+ if (validSquare(location)) {
1339
+ $('#' + squareElsIds[location]).addClass(CSS.highlight2)
1340
+ }
1341
+
1342
+ // run onDragMove
1343
+ if (isFunction(config.onDragMove)) {
1344
+ config.onDragMove(
1345
+ location,
1346
+ draggedPieceLocation,
1347
+ draggedPieceSource,
1348
+ draggedPiece,
1349
+ deepCopy(currentPosition),
1350
+ currentOrientation
1351
+ )
1352
+ }
1353
+
1354
+ // update state
1355
+ draggedPieceLocation = location
1356
+ }
1357
+
1358
+ function stopDraggedPiece (location) {
1359
+ // determine what the action should be
1360
+ var action = 'drop'
1361
+ if (location === 'offboard' && config.dropOffBoard === 'snapback') {
1362
+ action = 'snapback'
1363
+ }
1364
+ if (location === 'offboard' && config.dropOffBoard === 'trash') {
1365
+ action = 'trash'
1366
+ }
1367
+
1368
+ // run their onDrop function, which can potentially change the drop action
1369
+ if (isFunction(config.onDrop)) {
1370
+ var newPosition = deepCopy(currentPosition)
1371
+
1372
+ // source piece is a spare piece and position is off the board
1373
+ // if (draggedPieceSource === 'spare' && location === 'offboard') {...}
1374
+ // position has not changed; do nothing
1375
+
1376
+ // source piece is a spare piece and position is on the board
1377
+ if (draggedPieceSource === 'spare' && validSquare(location)) {
1378
+ // add the piece to the board
1379
+ newPosition[location] = draggedPiece
1380
+ }
1381
+
1382
+ // source piece was on the board and position is off the board
1383
+ if (validSquare(draggedPieceSource) && location === 'offboard') {
1384
+ // remove the piece from the board
1385
+ delete newPosition[draggedPieceSource]
1386
+ }
1387
+
1388
+ // source piece was on the board and position is on the board
1389
+ if (validSquare(draggedPieceSource) && validSquare(location)) {
1390
+ // move the piece
1391
+ delete newPosition[draggedPieceSource]
1392
+ newPosition[location] = draggedPiece
1393
+ }
1394
+
1395
+ var oldPosition = deepCopy(currentPosition)
1396
+
1397
+ var result = config.onDrop(
1398
+ draggedPieceSource,
1399
+ location,
1400
+ draggedPiece,
1401
+ newPosition,
1402
+ oldPosition,
1403
+ currentOrientation
1404
+ )
1405
+ if (result === 'snapback' || result === 'trash') {
1406
+ action = result
1407
+ }
1408
+ }
1409
+
1410
+ // do it!
1411
+ if (action === 'snapback') {
1412
+ snapbackDraggedPiece()
1413
+ } else if (action === 'trash') {
1414
+ trashDraggedPiece()
1415
+ } else if (action === 'drop') {
1416
+ dropDraggedPieceOnSquare(location)
1417
+ }
1418
+ }
1419
+
1420
+ // -------------------------------------------------------------------------
1421
+ // Public Methods
1422
+ // -------------------------------------------------------------------------
1423
+
1424
+ // clear the board
1425
+ widget.clear = function (useAnimation) {
1426
+ widget.position({}, useAnimation)
1427
+ }
1428
+
1429
+ // remove the widget from the page
1430
+ widget.destroy = function () {
1431
+ // remove markup
1432
+ $container.html('')
1433
+ $draggedPiece.remove()
1434
+
1435
+ // remove event handlers
1436
+ $container.unbind()
1437
+ }
1438
+
1439
+ // shorthand method to get the current FEN
1440
+ widget.fen = function () {
1441
+ return widget.position('fen')
1442
+ }
1443
+
1444
+ // flip orientation
1445
+ widget.flip = function () {
1446
+ return widget.orientation('flip')
1447
+ }
1448
+
1449
+ // move pieces
1450
+ // TODO: this method should be variadic as well as accept an array of moves
1451
+ widget.move = function () {
1452
+ // no need to throw an error here; just do nothing
1453
+ // TODO: this should return the current position
1454
+ if (arguments.length === 0) return
1455
+
1456
+ var useAnimation = true
1457
+
1458
+ // collect the moves into an object
1459
+ var moves = {}
1460
+ for (var i = 0; i < arguments.length; i++) {
1461
+ // any "false" to this function means no animations
1462
+ if (arguments[i] === false) {
1463
+ useAnimation = false
1464
+ continue
1465
+ }
1466
+
1467
+ // skip invalid arguments
1468
+ if (!validMove(arguments[i])) {
1469
+ error(2826, 'Invalid move passed to the move method.', arguments[i])
1470
+ continue
1471
+ }
1472
+
1473
+ var tmp = arguments[i].split('-')
1474
+ moves[tmp[0]] = tmp[1]
1475
+ }
1476
+
1477
+ // calculate position from moves
1478
+ var newPos = calculatePositionFromMoves(currentPosition, moves)
1479
+
1480
+ // update the board
1481
+ widget.position(newPos, useAnimation)
1482
+
1483
+ // return the new position object
1484
+ return newPos
1485
+ }
1486
+
1487
+ widget.orientation = function (arg) {
1488
+ // no arguments, return the current orientation
1489
+ if (arguments.length === 0) {
1490
+ return currentOrientation
1491
+ }
1492
+
1493
+ // set to white or black
1494
+ if (arg === 'white' || arg === 'black') {
1495
+ currentOrientation = arg
1496
+ drawBoard()
1497
+ return currentOrientation
1498
+ }
1499
+
1500
+ // flip orientation
1501
+ if (arg === 'flip') {
1502
+ currentOrientation = currentOrientation === 'white' ? 'black' : 'white'
1503
+ drawBoard()
1504
+ return currentOrientation
1505
+ }
1506
+
1507
+ error(5482, 'Invalid value passed to the orientation method.', arg)
1508
+ }
1509
+
1510
+ widget.position = function (position, useAnimation) {
1511
+ // no arguments, return the current position
1512
+ if (arguments.length === 0) {
1513
+ return deepCopy(currentPosition)
1514
+ }
1515
+
1516
+ // get position as FEN
1517
+ if (isString(position) && position.toLowerCase() === 'fen') {
1518
+ return objToFen(currentPosition)
1519
+ }
1520
+
1521
+ // start position
1522
+ if (isString(position) && position.toLowerCase() === 'start') {
1523
+ position = deepCopy(START_POSITION)
1524
+ }
1525
+
1526
+ // convert FEN to position object
1527
+ if (validFen(position)) {
1528
+ position = fenToObj(position)
1529
+ }
1530
+
1531
+ // validate position object
1532
+ if (!validPositionObject(position)) {
1533
+ error(6482, 'Invalid value passed to the position method.', position)
1534
+ return
1535
+ }
1536
+
1537
+ // default for useAnimations is true
1538
+ if (useAnimation !== false) useAnimation = true
1539
+
1540
+ if (useAnimation) {
1541
+ // start the animations
1542
+ var animations = calculateAnimations(currentPosition, position)
1543
+ doAnimations(animations, currentPosition, position)
1544
+
1545
+ // set the new position
1546
+ setCurrentPosition(position)
1547
+ } else {
1548
+ // instant update
1549
+ setCurrentPosition(position)
1550
+ drawPositionInstant()
1551
+ }
1552
+ }
1553
+
1554
+ widget.resize = function () {
1555
+ // calulate the new square size
1556
+ squareSize = calculateSquareSize()
1557
+
1558
+ // set board width
1559
+ $board.css('width', squareSize * 8 + 'px')
1560
+
1561
+ // set drag piece size
1562
+ $draggedPiece.css({
1563
+ height: squareSize,
1564
+ width: squareSize
1565
+ })
1566
+
1567
+ // spare pieces
1568
+ if (config.sparePieces) {
1569
+ $container
1570
+ .find('.' + CSS.sparePieces)
1571
+ .css('paddingLeft', squareSize + boardBorderSize + 'px')
1572
+ }
1573
+
1574
+ // redraw the board
1575
+ drawBoard()
1576
+ }
1577
+
1578
+ // set the starting position
1579
+ widget.start = function (useAnimation) {
1580
+ widget.position('start', useAnimation)
1581
+ }
1582
+
1583
+ // -------------------------------------------------------------------------
1584
+ // Browser Events
1585
+ // -------------------------------------------------------------------------
1586
+
1587
+ function stopDefault (evt) {
1588
+ evt.preventDefault()
1589
+ }
1590
+
1591
+ function mousedownSquare (evt) {
1592
+ // do nothing if we're not draggable
1593
+ if (!config.draggable) return
1594
+
1595
+ // do nothing if there is no piece on this square
1596
+ var square = $(this).attr('data-square')
1597
+ if (!validSquare(square)) return
1598
+ if (!currentPosition.hasOwnProperty(square)) return
1599
+
1600
+ beginDraggingPiece(square, currentPosition[square], evt.pageX, evt.pageY)
1601
+ }
1602
+
1603
+ function touchstartSquare (e) {
1604
+ // do nothing if we're not draggable
1605
+ if (!config.draggable) return
1606
+
1607
+ // do nothing if there is no piece on this square
1608
+ var square = $(this).attr('data-square')
1609
+ if (!validSquare(square)) return
1610
+ if (!currentPosition.hasOwnProperty(square)) return
1611
+
1612
+ e = e.originalEvent
1613
+ beginDraggingPiece(
1614
+ square,
1615
+ currentPosition[square],
1616
+ e.changedTouches[0].pageX,
1617
+ e.changedTouches[0].pageY
1618
+ )
1619
+ }
1620
+
1621
+ function mousedownSparePiece (evt) {
1622
+ // do nothing if sparePieces is not enabled
1623
+ if (!config.sparePieces) return
1624
+
1625
+ var piece = $(this).attr('data-piece')
1626
+
1627
+ beginDraggingPiece('spare', piece, evt.pageX, evt.pageY)
1628
+ }
1629
+
1630
+ function touchstartSparePiece (e) {
1631
+ // do nothing if sparePieces is not enabled
1632
+ if (!config.sparePieces) return
1633
+
1634
+ var piece = $(this).attr('data-piece')
1635
+
1636
+ e = e.originalEvent
1637
+ beginDraggingPiece(
1638
+ 'spare',
1639
+ piece,
1640
+ e.changedTouches[0].pageX,
1641
+ e.changedTouches[0].pageY
1642
+ )
1643
+ }
1644
+
1645
+ function mousemoveWindow (evt) {
1646
+ if (isDragging) {
1647
+ updateDraggedPiece(evt.pageX, evt.pageY)
1648
+ }
1649
+ }
1650
+
1651
+ var throttledMousemoveWindow = throttle(mousemoveWindow, config.dragThrottleRate)
1652
+
1653
+ function touchmoveWindow (evt) {
1654
+ // do nothing if we are not dragging a piece
1655
+ if (!isDragging) return
1656
+
1657
+ // prevent screen from scrolling
1658
+ evt.preventDefault()
1659
+
1660
+ updateDraggedPiece(evt.originalEvent.changedTouches[0].pageX,
1661
+ evt.originalEvent.changedTouches[0].pageY)
1662
+ }
1663
+
1664
+ var throttledTouchmoveWindow = throttle(touchmoveWindow, config.dragThrottleRate)
1665
+
1666
+ function mouseupWindow (evt) {
1667
+ // do nothing if we are not dragging a piece
1668
+ if (!isDragging) return
1669
+
1670
+ // get the location
1671
+ var location = isXYOnSquare(evt.pageX, evt.pageY)
1672
+
1673
+ stopDraggedPiece(location)
1674
+ }
1675
+
1676
+ function touchendWindow (evt) {
1677
+ // do nothing if we are not dragging a piece
1678
+ if (!isDragging) return
1679
+
1680
+ // get the location
1681
+ var location = isXYOnSquare(evt.originalEvent.changedTouches[0].pageX,
1682
+ evt.originalEvent.changedTouches[0].pageY)
1683
+
1684
+ stopDraggedPiece(location)
1685
+ }
1686
+
1687
+ function mouseenterSquare (evt) {
1688
+ // do not fire this event if we are dragging a piece
1689
+ // NOTE: this should never happen, but it's a safeguard
1690
+ if (isDragging) return
1691
+
1692
+ // exit if they did not provide a onMouseoverSquare function
1693
+ if (!isFunction(config.onMouseoverSquare)) return
1694
+
1695
+ // get the square
1696
+ var square = $(evt.currentTarget).attr('data-square')
1697
+
1698
+ // NOTE: this should never happen; defensive
1699
+ if (!validSquare(square)) return
1700
+
1701
+ // get the piece on this square
1702
+ var piece = false
1703
+ if (currentPosition.hasOwnProperty(square)) {
1704
+ piece = currentPosition[square]
1705
+ }
1706
+
1707
+ // execute their function
1708
+ config.onMouseoverSquare(square, piece, deepCopy(currentPosition), currentOrientation)
1709
+ }
1710
+
1711
+ function mouseleaveSquare (evt) {
1712
+ // do not fire this event if we are dragging a piece
1713
+ // NOTE: this should never happen, but it's a safeguard
1714
+ if (isDragging) return
1715
+
1716
+ // exit if they did not provide an onMouseoutSquare function
1717
+ if (!isFunction(config.onMouseoutSquare)) return
1718
+
1719
+ // get the square
1720
+ var square = $(evt.currentTarget).attr('data-square')
1721
+
1722
+ // NOTE: this should never happen; defensive
1723
+ if (!validSquare(square)) return
1724
+
1725
+ // get the piece on this square
1726
+ var piece = false
1727
+ if (currentPosition.hasOwnProperty(square)) {
1728
+ piece = currentPosition[square]
1729
+ }
1730
+
1731
+ // execute their function
1732
+ config.onMouseoutSquare(square, piece, deepCopy(currentPosition), currentOrientation)
1733
+ }
1734
+
1735
+ // -------------------------------------------------------------------------
1736
+ // Initialization
1737
+ // -------------------------------------------------------------------------
1738
+
1739
+ function addEvents () {
1740
+ // prevent "image drag"
1741
+ $('body').on('mousedown mousemove', '.' + CSS.piece, stopDefault)
1742
+
1743
+ // mouse drag pieces
1744
+ $board.on('mousedown', '.' + CSS.square, mousedownSquare)
1745
+ $container.on('mousedown', '.' + CSS.sparePieces + ' .' + CSS.piece, mousedownSparePiece)
1746
+
1747
+ // mouse enter / leave square
1748
+ $board
1749
+ .on('mouseenter', '.' + CSS.square, mouseenterSquare)
1750
+ .on('mouseleave', '.' + CSS.square, mouseleaveSquare)
1751
+
1752
+ // piece drag
1753
+ var $window = $(window)
1754
+ $window
1755
+ .on('mousemove', throttledMousemoveWindow)
1756
+ .on('mouseup', mouseupWindow)
1757
+
1758
+ // touch drag pieces
1759
+ if (isTouchDevice()) {
1760
+ $board.on('touchstart', '.' + CSS.square, touchstartSquare)
1761
+ $container.on('touchstart', '.' + CSS.sparePieces + ' .' + CSS.piece, touchstartSparePiece)
1762
+ $window
1763
+ .on('touchmove', throttledTouchmoveWindow)
1764
+ .on('touchend', touchendWindow)
1765
+ }
1766
+ }
1767
+
1768
+ function initDOM () {
1769
+ // create unique IDs for all the elements we will create
1770
+ createElIds()
1771
+
1772
+ // build board and save it in memory
1773
+ $container.html(buildContainerHTML(config.sparePieces))
1774
+ $board = $container.find('.' + CSS.board)
1775
+
1776
+ if (config.sparePieces) {
1777
+ $sparePiecesTop = $container.find('.' + CSS.sparePiecesTop)
1778
+ $sparePiecesBottom = $container.find('.' + CSS.sparePiecesBottom)
1779
+ }
1780
+
1781
+ // create the drag piece
1782
+ var draggedPieceId = uuid()
1783
+ $('body').append(buildPieceHTML('wP', true, draggedPieceId))
1784
+ $draggedPiece = $('#' + draggedPieceId)
1785
+
1786
+ // TODO: need to remove this dragged piece element if the board is no
1787
+ // longer in the DOM
1788
+
1789
+ // get the border size
1790
+ boardBorderSize = parseInt($board.css('borderLeftWidth'), 10)
1791
+
1792
+ // set the size and draw the board
1793
+ widget.resize()
1794
+ }
1795
+
1796
+ // -------------------------------------------------------------------------
1797
+ // Initialization
1798
+ // -------------------------------------------------------------------------
1799
+
1800
+ setInitialState()
1801
+ initDOM()
1802
+ addEvents()
1803
+
1804
+ // return the widget object
1805
+ return widget
1806
+ } // end constructor
1807
+
1808
+ // TODO: do module exports here
1809
+ window['Chessboard'] = constructor
1810
+
1811
+ // support legacy ChessBoard name
1812
+ window['ChessBoard'] = window['Chessboard']
1813
+
1814
+ // expose util functions
1815
+ window['Chessboard']['fenToObj'] = fenToObj
1816
+ window['Chessboard']['objToFen'] = objToFen
1817
+ })() // end anonymous wrapper
js/chessboard-1.0.0.min.js ADDED
@@ -0,0 +1,2 @@
 
 
 
1
+ /*! chessboard.js v1.0.0 | (c) 2019 Chris Oakman | MIT License chessboardjs.com/license */
2
+ !function(){"use strict";var z=window.jQuery,F="abcdefgh".split(""),r=20,A="…",W="1.8.3",e="rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR",G=pe(e),n=200,t=200,o=60,a=30,i=100,H={};function V(e,r,n){function t(){o=0,a&&(a=!1,s())}var o=0,a=!1,i=[],s=function(){o=window.setTimeout(t,r),e.apply(n,i)};return function(e){i=arguments,o?a=!0:s()}}function Z(){return"xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx".replace(/x/g,function(e){return(16*Math.random()|0).toString(16)})}function _(e){return JSON.parse(JSON.stringify(e))}function s(e){var r=e.split(".");return{major:parseInt(r[0],10),minor:parseInt(r[1],10),patch:parseInt(r[2],10)}}function ee(e,r){for(var n in r)if(r.hasOwnProperty(n))for(var t="{"+n+"}",o=r[n];-1!==e.indexOf(t);)e=e.replace(t,o);return e}function re(e){return"string"==typeof e}function ne(e){return"function"==typeof e}function p(e){return"number"==typeof e&&isFinite(e)&&Math.floor(e)===e}function c(e){return"fast"===e||"slow"===e||!!p(e)&&0<=e}function te(e){if(!re(e))return!1;var r=e.split("-");return 2===r.length&&(oe(r[0])&&oe(r[1]))}function oe(e){return re(e)&&-1!==e.search(/^[a-h][1-8]$/)}function u(e){return re(e)&&-1!==e.search(/^[bw][KQRNBP]$/)}function ae(e){if(!re(e))return!1;var r=(e=function(e){return e.replace(/8/g,"11111111").replace(/7/g,"1111111").replace(/6/g,"111111").replace(/5/g,"11111").replace(/4/g,"1111").replace(/3/g,"111").replace(/2/g,"11")}(e=e.replace(/ .+$/,""))).split("/");if(8!==r.length)return!1;for(var n=0;n<8;n++)if(8!==r[n].length||-1!==r[n].search(/[^kqrnbpKQRNBP1]/))return!1;return!0}function ie(e){if(!z.isPlainObject(e))return!1;for(var r in e)if(e.hasOwnProperty(r)&&(!oe(r)||!u(e[r])))return!1;return!0}function se(){return typeof window.$&&z.fn&&z.fn.jquery&&function(e,r){e=s(e),r=s(r);var n=1e5*e.major*1e5+1e5*e.minor+e.patch;return 1e5*r.major*1e5+1e5*r.minor+r.patch<=n}(z.fn.jquery,W)}function pe(e){if(!ae(e))return!1;for(var r,n=(e=e.replace(/ .+$/,"")).split("/"),t={},o=8,a=0;a<8;a++){for(var i=n[a].split(""),s=0,p=0;p<i.length;p++){if(-1!==i[p].search(/[1-8]/))s+=parseInt(i[p],10);else t[F[s]+o]=(r=i[p]).toLowerCase()===r?"b"+r.toUpperCase():"w"+r.toUpperCase(),s+=1}o-=1}return t}function ce(e){if(!ie(e))return!1;for(var r,n,t="",o=8,a=0;a<8;a++){for(var i=0;i<8;i++){var s=F[i]+o;e.hasOwnProperty(s)?t+=(r=e[s],n=void 0,"w"===(n=r.split(""))[0]?n[1].toUpperCase():n[1].toLowerCase()):t+="1"}7!==a&&(t+="/"),o-=1}return t=function(e){return e.replace(/11111111/g,"8").replace(/1111111/g,"7").replace(/111111/g,"6").replace(/11111/g,"5").replace(/1111/g,"4").replace(/111/g,"3").replace(/11/g,"2")}(t)}function ue(e,r,n){for(var t=function(e){for(var r=[],n=0;n<8;n++)for(var t=0;t<8;t++){var o=F[n]+(t+1);e!==o&&r.push({square:o,distance:(a=e,i=o,void 0,void 0,void 0,void 0,void 0,void 0,void 0,void 0,s=a.split(""),p=F.indexOf(s[0])+1,c=parseInt(s[1],10),u=i.split(""),f=F.indexOf(u[0])+1,d=parseInt(u[1],10),h=Math.abs(p-f),l=Math.abs(c-d),l<=h?h:l)})}var a,i,s,p,c,u,f,d,h,l;r.sort(function(e,r){return e.distance-r.distance});var v=[];for(n=0;n<r.length;n++)v.push(r[n].square);return v}(n),o=0;o<t.length;o++){var a=t[o];if(e.hasOwnProperty(a)&&e[a]===r)return a}return!1}function fe(e){return"black"!==e.orientation&&(e.orientation="white"),!1!==e.showNotation&&(e.showNotation=!0),!0!==e.draggable&&(e.draggable=!1),"trash"!==e.dropOffBoard&&(e.dropOffBoard="snapback"),!0!==e.sparePieces&&(e.sparePieces=!1),e.sparePieces&&(e.draggable=!0),e.hasOwnProperty("pieceTheme")&&(re(e.pieceTheme)||ne(e.pieceTheme))||(e.pieceTheme="img/chesspieces/wikipedia/{piece}.png"),c(e.appearSpeed)||(e.appearSpeed=n),c(e.moveSpeed)||(e.moveSpeed=t),c(e.snapbackSpeed)||(e.snapbackSpeed=o),c(e.snapSpeed)||(e.snapSpeed=a),c(e.trashSpeed)||(e.trashSpeed=i),function(e){return p(e)&&1<=e}(e.dragThrottleRate)||(e.dragThrottleRate=r),e}H.alpha="alpha-d2270",H.black="black-3c85d",H.board="board-b72b1",H.chessboard="chessboard-63f37",H.clearfix="clearfix-7da63",H.highlight1="highlight1-32417",H.highlight2="highlight2-9c5d2",H.notation="notation-322f9",H.numeric="numeric-fc462",H.piece="piece-417db",H.row="row-5277c",H.sparePieces="spare-pieces-7492f",H.sparePiecesBottom="spare-pieces-bottom-ae20f",H.sparePiecesTop="spare-pieces-top-4028b",H.square="square-55d63",H.white="white-1e1d7",window.Chessboard=function(e,f){if(!function(){if(se())return!0;var e="Chessboard Error 1005: Unable to find a valid version of jQuery. Please include jQuery "+W+" or higher on the page\n\nExiting"+A;return window.alert(e),!1}())return null;var n=function(e){if(""===e){var r="Chessboard Error 1001: The first argument to Chessboard() cannot be an empty string.\n\nExiting"+A;return window.alert(r),!1}re(e)&&"#"!==e.charAt(0)&&(e="#"+e);var n=z(e);if(1===n.length)return n;var t="Chessboard Error 1003: The first argument to Chessboard() must be the ID of a DOM node, an ID query selector, or a single DOM node.\n\nExiting"+A;return window.alert(t),!1}(e);if(!n)return null;f=fe(f=function(e){return"start"===e?e={position:_(G)}:ae(e)?e={position:pe(e)}:ie(e)&&(e={position:_(e)}),z.isPlainObject(e)||(e={}),e}(f));var r=null,a=null,t=null,o=null,i={},s=2,p="white",c={},u=null,d=null,h=null,l=!1,v={},g={},w={},b=16;function m(e,r,n){if(!0===f.hasOwnProperty("showErrors")&&!1!==f.showErrors){var t="Chessboard Error "+e+": "+r;return"console"===f.showErrors&&"object"==typeof console&&"function"==typeof console.log?(console.log(t),void(2<=arguments.length&&console.log(n))):"alert"===f.showErrors?(n&&(t+="\n\n"+JSON.stringify(n)),void window.alert(t)):void(ne(f.showErrors)&&f.showErrors(e,r,n))}}function P(e){return ne(f.pieceTheme)?f.pieceTheme(e):re(f.pieceTheme)?ee(f.pieceTheme,{piece:e}):(m(8272,"Unable to build image source for config.pieceTheme."),"")}function y(e,r,n){var t='<img src="'+P(e)+'" ';return re(n)&&""!==n&&(t+='id="'+n+'" '),t+='alt="" class="{piece}" data-piece="'+e+'" style="width:'+b+"px;height:"+b+"px;",r&&(t+="display:none;"),ee(t+='" />',H)}function x(e){var r=["wK","wQ","wR","wB","wN","wP"];"black"===e&&(r=["bK","bQ","bR","bB","bN","bP"]);for(var n="",t=0;t<r.length;t++)n+=y(r[t],!1,v[r[t]]);return n}function O(e,r,n,t){var o=z("#"+g[e]),a=o.offset(),i=z("#"+g[r]),s=i.offset(),p=Z();z("body").append(y(n,!0,p));var c=z("#"+p);c.css({display:"",position:"absolute",top:a.top,left:a.left}),o.find("."+H.piece).remove();var u={duration:f.moveSpeed,complete:function(){i.append(y(n)),c.remove(),ne(t)&&t()}};c.animate(s,u)}function S(e,r,n){var t=z("#"+v[e]).offset(),o=z("#"+g[r]),a=o.offset(),i=Z();z("body").append(y(e,!0,i));var s=z("#"+i);s.css({display:"",position:"absolute",left:t.left,top:t.top});var p={duration:f.moveSpeed,complete:function(){o.find("."+H.piece).remove(),o.append(y(e)),s.remove(),ne(n)&&n()}};s.animate(a,p)}function T(){for(var e in r.find("."+H.piece).remove(),c)c.hasOwnProperty(e)&&z("#"+g[e]).append(y(c[e]))}function q(){r.html(function(e){"black"!==e&&(e="white");var r="",n=_(F),t=8;"black"===e&&(n.reverse(),t=1);for(var o="white",a=0;a<8;a++){r+='<div class="{row}">';for(var i=0;i<8;i++){var s=n[i]+t;r+='<div class="{square} '+H[o]+" square-"+s+'" style="width:'+b+"px;height:"+b+'px;" id="'+g[s]+'" data-square="'+s+'">',f.showNotation&&(("white"===e&&1===t||"black"===e&&8===t)&&(r+='<div class="{notation} {alpha}">'+n[i]+"</div>"),0===i&&(r+='<div class="{notation} {numeric}">'+t+"</div>")),r+="</div>",o="white"===o?"black":"white"}r+='<div class="{clearfix}"></div></div>',o="white"===o?"black":"white","white"===e?t-=1:t+=1}return ee(r,H)}(p,f.showNotation)),T(),f.sparePieces&&("white"===p?(t.html(x("black")),o.html(x("white"))):(t.html(x("white")),o.html(x("black"))))}function k(e){var r=_(c),n=_(e);ce(r)!==ce(n)&&(ne(f.onChange)&&f.onChange(r,n),c=e)}function E(e,r){for(var n in w)if(w.hasOwnProperty(n)){var t=w[n];if(e>=t.left&&e<t.left+b&&r>=t.top&&r<t.top+b)return n}return"offboard"}function C(){r.find("."+H.square).removeClass(H.highlight1+" "+H.highlight2)}function B(){C();var e=_(c);delete e[h],k(e),T(),a.fadeOut(f.trashSpeed),l=!1}function I(e,r,n,t){ne(f.onDragStart)&&!1===f.onDragStart(e,r,_(c),p)||(l=!0,u=r,d="spare"===(h=e)?"offboard":e,function(){for(var e in w={},g)g.hasOwnProperty(e)&&(w[e]=z("#"+g[e]).offset())}(),a.attr("src",P(r)).css({display:"",position:"absolute",left:n-b/2,top:t-b/2}),"spare"!==e&&z("#"+g[e]).addClass(H.highlight1).find("."+H.piece).css("display","none"))}function M(e,r){a.css({left:e-b/2,top:r-b/2});var n=E(e,r);n!==d&&(oe(d)&&z("#"+g[d]).removeClass(H.highlight2),oe(n)&&z("#"+g[n]).addClass(H.highlight2),ne(f.onDragMove)&&f.onDragMove(n,d,h,u,_(c),p),d=n)}function N(e){var r="drop";if("offboard"===e&&"snapback"===f.dropOffBoard&&(r="snapback"),"offboard"===e&&"trash"===f.dropOffBoard&&(r="trash"),ne(f.onDrop)){var n=_(c);"spare"===h&&oe(e)&&(n[e]=u),oe(h)&&"offboard"===e&&delete n[h],oe(h)&&oe(e)&&(delete n[h],n[e]=u);var t=_(c),o=f.onDrop(h,e,u,n,t,p);"snapback"!==o&&"trash"!==o||(r=o)}"snapback"===r?function(){if("spare"!==h){C();var e=z("#"+g[h]).offset(),r={duration:f.snapbackSpeed,complete:function(){T(),a.css("display","none"),ne(f.onSnapbackEnd)&&f.onSnapbackEnd(u,h,_(c),p)}};a.animate(e,r),l=!1}else B()}():"trash"===r?B():"drop"===r&&function(e){C();var r=_(c);delete r[h],r[e]=u,k(r);var n=z("#"+g[e]).offset(),t={duration:f.snapSpeed,complete:function(){T(),a.css("display","none"),ne(f.onSnapEnd)&&f.onSnapEnd(h,e,u)}};a.animate(n,t),l=!1}(e)}function j(e){e.preventDefault()}function D(e){if(f.draggable){var r=z(this).attr("data-square");oe(r)&&c.hasOwnProperty(r)&&I(r,c[r],e.pageX,e.pageY)}}function R(e){if(f.draggable){var r=z(this).attr("data-square");oe(r)&&c.hasOwnProperty(r)&&(e=e.originalEvent,I(r,c[r],e.changedTouches[0].pageX,e.changedTouches[0].pageY))}}function Q(e){f.sparePieces&&I("spare",z(this).attr("data-piece"),e.pageX,e.pageY)}function X(e){f.sparePieces&&I("spare",z(this).attr("data-piece"),(e=e.originalEvent).changedTouches[0].pageX,e.changedTouches[0].pageY)}i.clear=function(e){i.position({},e)},i.destroy=function(){n.html(""),a.remove(),n.unbind()},i.fen=function(){return i.position("fen")},i.flip=function(){return i.orientation("flip")},i.move=function(){if(0!==arguments.length){for(var e=!0,r={},n=0;n<arguments.length;n++)if(!1!==arguments[n])if(te(arguments[n])){var t=arguments[n].split("-");r[t[0]]=t[1]}else m(2826,"Invalid move passed to the move method.",arguments[n]);else e=!1;var o=function(e,r){var n=_(e);for(var t in r)if(r.hasOwnProperty(t)&&n.hasOwnProperty(t)){var o=n[t];delete n[t],n[r[t]]=o}return n}(c,r);return i.position(o,e),o}},i.orientation=function(e){return 0===arguments.length?p:"white"===e||"black"===e?(p=e,q(),p):"flip"===e?(p="white"===p?"black":"white",q(),p):void m(5482,"Invalid value passed to the orientation method.",e)},i.position=function(e,r){if(0===arguments.length)return _(c);if(re(e)&&"fen"===e.toLowerCase())return ce(c);(re(e)&&"start"===e.toLowerCase()&&(e=_(G)),ae(e)&&(e=pe(e)),ie(e))?(!1!==r&&(r=!0),r?(function(e,r,n){if(0!==e.length)for(var t=0,o=0;o<e.length;o++){var a=e[o];"clear"===a.type?z("#"+g[a.square]+" ."+H.piece).fadeOut(f.trashSpeed,i):"add"!==a.type||f.sparePieces?"add"===a.type&&f.sparePieces?S(a.piece,a.square,i):"move"===a.type&&O(a.source,a.destination,a.piece,i):z("#"+g[a.square]).append(y(a.piece,!0)).find("."+H.piece).fadeIn(f.appearSpeed,i)}function i(){(t+=1)===e.length&&(T(),ne(f.onMoveEnd)&&f.onMoveEnd(_(r),_(n)))}}(function(e,r){e=_(e),r=_(r);var n=[],t={};for(var o in r)r.hasOwnProperty(o)&&e.hasOwnProperty(o)&&e[o]===r[o]&&(delete e[o],delete r[o]);for(o in r)if(r.hasOwnProperty(o)){var a=ue(e,r[o],o);a&&(n.push({type:"move",source:a,destination:o,piece:r[o]}),delete e[a],delete r[o],t[o]=!0)}for(o in r)r.hasOwnProperty(o)&&(n.push({type:"add",square:o,piece:r[o]}),delete r[o]);for(o in e)e.hasOwnProperty(o)&&(t.hasOwnProperty(o)||(n.push({type:"clear",square:o,piece:e[o]}),delete e[o]));return n}(c,e),c,e),k(e)):(k(e),T())):m(6482,"Invalid value passed to the position method.",e)},i.resize=function(){b=function(){var e=parseInt(n.width(),10);if(!e||e<=0)return 0;for(var r=e-1;r%8!=0&&0<r;)r-=1;return r/8}(),r.css("width",8*b+"px"),a.css({height:b,width:b}),f.sparePieces&&n.find("."+H.sparePieces).css("paddingLeft",b+s+"px"),q()},i.start=function(e){i.position("start",e)};var Y=V(function(e){l&&M(e.pageX,e.pageY)},f.dragThrottleRate),K=V(function(e){l&&(e.preventDefault(),M(e.originalEvent.changedTouches[0].pageX,e.originalEvent.changedTouches[0].pageY))},f.dragThrottleRate);function L(e){l&&N(E(e.pageX,e.pageY))}function U(e){l&&N(E(e.originalEvent.changedTouches[0].pageX,e.originalEvent.changedTouches[0].pageY))}function $(e){if(!l&&ne(f.onMouseoverSquare)){var r=z(e.currentTarget).attr("data-square");if(oe(r)){var n=!1;c.hasOwnProperty(r)&&(n=c[r]),f.onMouseoverSquare(r,n,_(c),p)}}}function J(e){if(!l&&ne(f.onMouseoutSquare)){var r=z(e.currentTarget).attr("data-square");if(oe(r)){var n=!1;c.hasOwnProperty(r)&&(n=c[r]),f.onMouseoutSquare(r,n,_(c),p)}}}return p=f.orientation,f.hasOwnProperty("position")&&("start"===f.position?c=_(G):ae(f.position)?c=pe(f.position):ie(f.position)?c=_(f.position):m(7263,"Invalid value passed to config.position.",f.position)),function(){!function(){for(var e=0;e<F.length;e++)for(var r=1;r<=8;r++){var n=F[e]+r;g[n]=n+"-"+Z()}var t="KQRNBP".split("");for(e=0;e<t.length;e++){var o="w"+t[e],a="b"+t[e];v[o]=o+"-"+Z(),v[a]=a+"-"+Z()}}(),n.html(function(e){var r='<div class="{chessboard}">';return e&&(r+='<div class="{sparePieces} {sparePiecesTop}"></div>'),r+='<div class="{board}"></div>',e&&(r+='<div class="{sparePieces} {sparePiecesBottom}"></div>'),ee(r+="</div>",H)}(f.sparePieces)),r=n.find("."+H.board),f.sparePieces&&(t=n.find("."+H.sparePiecesTop),o=n.find("."+H.sparePiecesBottom));var e=Z();z("body").append(y("wP",!0,e)),a=z("#"+e),s=parseInt(r.css("borderLeftWidth"),10),i.resize()}(),function(){z("body").on("mousedown mousemove","."+H.piece,j),r.on("mousedown","."+H.square,D),n.on("mousedown","."+H.sparePieces+" ."+H.piece,Q),r.on("mouseenter","."+H.square,$).on("mouseleave","."+H.square,J);var e=z(window);e.on("mousemove",Y).on("mouseup",L),"ontouchstart"in document.documentElement&&(r.on("touchstart","."+H.square,R),n.on("touchstart","."+H.sparePieces+" ."+H.piece,X),e.on("touchmove",K).on("touchend",U))}(),i},window.ChessBoard=window.Chessboard,window.Chessboard.fenToObj=pe,window.Chessboard.objToFen=ce}();
helpers.js → js/helpers.js RENAMED
@@ -8,7 +8,7 @@ function convertTypedArray(src, type) {
8
 
9
  var printTextarea = (function() {
10
  var element = document.getElementById('output');
11
- if (element) element.alue = ''; // clear browser cache
12
  return function(text) {
13
  if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
14
  console.log(text);
@@ -22,6 +22,7 @@ var printTextarea = (function() {
22
  async function clearCache() {
23
  if (confirm('Are you sure you want to clear the cache?\nAll the models will be downloaded again.')) {
24
  indexedDB.deleteDatabase(dbName);
 
25
  }
26
  }
27
 
@@ -88,11 +89,15 @@ async function fetchRemote(url, cbProgress, cbPrint) {
88
  // - check if the data is already in the IndexedDB
89
  // - if not, fetch it from the remote URL and store it in the IndexedDB
90
  function loadRemote(url, dst, size_mb, cbProgress, cbReady, cbCancel, cbPrint) {
91
- // query the storage quota and print it
92
- navigator.storage.estimate().then(function (estimate) {
93
- cbPrint('loadRemote: storage quota: ' + estimate.quota + ' bytes');
94
- cbPrint('loadRemote: storage usage: ' + estimate.usage + ' bytes');
95
- });
 
 
 
 
96
 
97
  // check if the data is already in the IndexedDB
98
  var rq = indexedDB.open(dbName, dbVersion);
@@ -141,7 +146,15 @@ function loadRemote(url, dst, size_mb, cbProgress, cbReady, cbCancel, cbPrint) {
141
  var db = event.target.result;
142
  var tx = db.transaction(['models'], 'readwrite');
143
  var os = tx.objectStore('models');
144
- var rq = os.put(data, url);
 
 
 
 
 
 
 
 
145
 
146
  rq.onsuccess = function (event) {
147
  cbPrint('loadRemote: "' + url + '" stored in the IndexedDB');
@@ -176,7 +189,6 @@ function loadRemote(url, dst, size_mb, cbProgress, cbReady, cbCancel, cbPrint) {
176
 
177
  rq.onabort = function (event) {
178
  cbPrint('loadRemote: failed to open IndexedDB: abort');
179
-
180
  };
181
  }
182
-
 
8
 
9
  var printTextarea = (function() {
10
  var element = document.getElementById('output');
11
+ if (element) element.value = ''; // clear browser cache
12
  return function(text) {
13
  if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
14
  console.log(text);
 
22
  async function clearCache() {
23
  if (confirm('Are you sure you want to clear the cache?\nAll the models will be downloaded again.')) {
24
  indexedDB.deleteDatabase(dbName);
25
+ location.reload();
26
  }
27
  }
28
 
 
89
  // - check if the data is already in the IndexedDB
90
  // - if not, fetch it from the remote URL and store it in the IndexedDB
91
  function loadRemote(url, dst, size_mb, cbProgress, cbReady, cbCancel, cbPrint) {
92
+ if (!navigator.storage || !navigator.storage.estimate) {
93
+ cbPrint('loadRemote: navigator.storage.estimate() is not supported');
94
+ } else {
95
+ // query the storage quota and print it
96
+ navigator.storage.estimate().then(function (estimate) {
97
+ cbPrint('loadRemote: storage quota: ' + estimate.quota + ' bytes');
98
+ cbPrint('loadRemote: storage usage: ' + estimate.usage + ' bytes');
99
+ });
100
+ }
101
 
102
  // check if the data is already in the IndexedDB
103
  var rq = indexedDB.open(dbName, dbVersion);
 
146
  var db = event.target.result;
147
  var tx = db.transaction(['models'], 'readwrite');
148
  var os = tx.objectStore('models');
149
+
150
+ var rq = null;
151
+ try {
152
+ var rq = os.put(data, url);
153
+ } catch (e) {
154
+ cbPrint('loadRemote: failed to store "' + url + '" in the IndexedDB: \n' + e);
155
+ cbCancel();
156
+ return;
157
+ }
158
 
159
  rq.onsuccess = function (event) {
160
  cbPrint('loadRemote: "' + url + '" stored in the IndexedDB');
 
189
 
190
  rq.onabort = function (event) {
191
  cbPrint('loadRemote: failed to open IndexedDB: abort');
192
+ cbCancel();
193
  };
194
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- *.ftz filter=lfs diff=lfs merge=lfs -text
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- *.gz filter=lfs diff=lfs merge=lfs -text
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- *.h5 filter=lfs diff=lfs merge=lfs -text
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- *.joblib filter=lfs diff=lfs merge=lfs -text
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- *.lfs.* filter=lfs diff=lfs merge=lfs -text
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- *.lz4 filter=lfs diff=lfs merge=lfs -text
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- *.model filter=lfs diff=lfs merge=lfs -text
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- *.msgpack filter=lfs diff=lfs merge=lfs -text
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- *.npy filter=lfs diff=lfs merge=lfs -text
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- *.npz filter=lfs diff=lfs merge=lfs -text
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- *.onnx filter=lfs diff=lfs merge=lfs -text
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- *.ot filter=lfs diff=lfs merge=lfs -text
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- *.parquet filter=lfs diff=lfs merge=lfs -text
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- *.pb filter=lfs diff=lfs merge=lfs -text
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- *.pickle filter=lfs diff=lfs merge=lfs -text
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- *.pkl filter=lfs diff=lfs merge=lfs -text
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- *.pt filter=lfs diff=lfs merge=lfs -text
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- *.pth filter=lfs diff=lfs merge=lfs -text
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- *.rar filter=lfs diff=lfs merge=lfs -text
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- saved_model/**/* filter=lfs diff=lfs merge=lfs -text
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- *.tar.* filter=lfs diff=lfs merge=lfs -text
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- *.tflite filter=lfs diff=lfs merge=lfs -text
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- *.tgz filter=lfs diff=lfs merge=lfs -text
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- *.wasm filter=lfs diff=lfs merge=lfs -text
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- *.xz filter=lfs diff=lfs merge=lfs -text
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- *.zip filter=lfs diff=lfs merge=lfs -text
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- *.zst filter=lfs diff=lfs merge=lfs -text
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- *tfevents* filter=lfs diff=lfs merge=lfs -text
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- # Audio files - uncompressed
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- *.pcm filter=lfs diff=lfs merge=lfs -text
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- *.sam filter=lfs diff=lfs merge=lfs -text
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- *.raw filter=lfs diff=lfs merge=lfs -text
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- # Audio files - compressed
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- *.aac filter=lfs diff=lfs merge=lfs -text
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- *.flac filter=lfs diff=lfs merge=lfs -text
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- *.mp3 filter=lfs diff=lfs merge=lfs -text
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- *.ogg filter=lfs diff=lfs merge=lfs -text
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- *.wav filter=lfs diff=lfs merge=lfs -text
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- # Image files - uncompressed
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- *.bmp filter=lfs diff=lfs merge=lfs -text
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- *.gif filter=lfs diff=lfs merge=lfs -text
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- *.png filter=lfs diff=lfs merge=lfs -text
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- *.tiff filter=lfs diff=lfs merge=lfs -text
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- # Image files - compressed
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- *.jpg filter=lfs diff=lfs merge=lfs -text
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- *.jpeg filter=lfs diff=lfs merge=lfs -text
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- *.webp filter=lfs diff=lfs merge=lfs -text
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
models/README.md DELETED
@@ -1,24 +0,0 @@
1
- ---
2
- license: mit
3
- ---
4
-
5
- # OpenAI's Whisper models converted to ggml format
6
-
7
- [Available models](https://huggingface.co/datasets/ggerganov/whisper.cpp/tree/main)
8
-
9
- | Model | Disk | Mem | SHA |
10
- | --- | --- | --- | --- |
11
- | tiny | 75 MB | ~390 MB | `bd577a113a864445d4c299885e0cb97d4ba92b5f` |
12
- | tiny.en | 75 MB | ~390 MB | `c78c86eb1a8faa21b369bcd33207cc90d64ae9df` |
13
- | base | 142 MB | ~500 MB | `465707469ff3a37a2b9b8d8f89f2f99de7299dac` |
14
- | base.en | 142 MB | ~500 MB | `137c40403d78fd54d454da0f9bd998f78703390c` |
15
- | small | 466 MB | ~1.0 GB | `55356645c2b361a969dfd0ef2c5a50d530afd8d5` |
16
- | small.en | 466 MB | ~1.0 GB | `db8a495a91d927739e50b3fc1cc4c6b8f6c2d022` |
17
- | medium | 1.5 GB | ~2.6 GB | `fd9727b6e1217c2f614f9b698455c4ffd82463b4` |
18
- | medium.en | 1.5 GB | ~2.6 GB | `8c30f0e44ce9560643ebd10bbe50cd20eafd3723` |
19
- | large-v1 | 2.9 GB | ~4.7 GB | `b1caaf735c4cc1429223d5a74f0f4d0b9b59a299` |
20
- | large | 2.9 GB | ~4.7 GB | `0f4c8e34f21cf1a914c59d8b3ce882345ad349d6` |
21
-
22
- For more information, visit:
23
-
24
- https://github.com/ggerganov/whisper.cpp/tree/master/models
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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- size 147951465
 
 
 
 
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- size 147964211
 
 
 
 
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- version https://git-lfs.github.com/spec/v1
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- oid sha256:be07e048e1e599ad46341c8d2a135645097a538221678b7acdd1b1919c6e1b21
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- size 77691713
 
 
 
 
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- version https://git-lfs.github.com/spec/v1
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- oid sha256:921e4cf8686fdd993dcd081a5da5b6c365bfde1162e72b08d75ac75289920b1f
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- size 77704715