forked from puppetlabs/showoff
/
showoff.js
639 lines (555 loc) · 13.4 KB
/
showoff.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
/* ShowOff JS Logic */
var ShowOff = {};
var preso_started = false
var slidenum = 0
var slideTotal = 0
var slides
var currentSlide
var totalslides = 0
var slidesLoaded = false
var incrSteps = 0
var incrElem
var incrCurr = 0
var incrCode = false
var debugMode = false
var gotoSlidenum = 0
var shiftKeyActive = false
var loadSlidesBool
var loadSlidesPrefix
function setupPreso(load_slides, prefix) {
if (preso_started)
{
alert("already started")
return
}
preso_started = true
loadSlidesBool = load_slides
loadSlidesPrefix = prefix
loadSlides(loadSlidesBool, loadSlidesPrefix)
doDebugStuff()
// bind event handlers
document.onkeydown = keyDown
document.onkeyup = keyUp
/* window.onresize = resized; */
/* window.onscroll = scrolled; */
/* window.onunload = unloaded; */
$('body').addSwipeEvents().
bind('tap', swipeLeft). // next
bind('swipeleft', swipeLeft). // next
bind('swiperight', swipeRight); // prev
}
function loadSlides(load_slides, prefix) {
//load slides offscreen, wait for images and then initialize
if (load_slides) {
$("#slides").load("slides", false, function(){
$("#slides img").batchImageLoad({
loadingCompleteCallback: initializePresentation(prefix)
})
})
} else {
$("#slides img").batchImageLoad({
loadingCompleteCallback: initializePresentation(prefix)
})
}
}
function initializePresentation(prefix) {
// unhide for height to work in static mode
$("#slides").show();
//center slides offscreen
centerSlides($('#slides > .slide'))
//copy into presentation area
$("#preso").empty()
$('#slides > .slide').appendTo($("#preso"))
//populate vars
slides = $('#preso > .slide')
slideTotal = slides.size()
//setup manual jquery cycle
$('#preso').cycle({
timeout: 0
})
setupMenu()
if (slidesLoaded) {
showSlide()
} else {
showFirstSlide();
slidesLoaded = true
}
setupSlideParamsCheck();
sh_highlightDocument(prefix+'/js/sh_lang/', '.min.js')
$("#preso").trigger("showoff:loaded");
}
function centerSlides(slides) {
slides.each(function(s, slide) {
centerSlide(slide)
})
}
function centerSlide(slide) {
var slide_content = $(slide).children(".content").first()
var height = slide_content.height()
var mar_top = (0.5 * parseFloat($(slide).height())) - (0.5 * parseFloat(height))
if (mar_top < 0) {
mar_top = 0
}
slide_content.css('margin-top', mar_top)
}
function setupMenu() {
$('#navmenu').hide();
var currSlide = 0
var menu = new ListMenu()
slides.each(function(s, elem) {
content = $(elem).children(".content")
shortTxt = $(content).text().substr(0, 20)
path = $(content).attr('ref').split('/')
currSlide += 1
menu.addItem(path, shortTxt, currSlide)
})
$('#navigation').html(menu.getList())
$('#navmenu').menu({
content: $('#navigation').html(),
flyOut: true
});
}
function checkSlideParameter() {
if (slideParam = currentSlideFromParams()) {
slidenum = slideParam;
}
}
function currentSlideFromParams() {
var result;
if (result = window.location.hash.match(/#([0-9]+)/)) {
return result[result.length - 1] - 1;
}
}
function setupSlideParamsCheck() {
var check = function() {
var currentSlide = currentSlideFromParams();
if (slidenum != currentSlide) {
slidenum = currentSlide;
showSlide();
}
setTimeout(check, 100);
}
setTimeout(check, 100);
}
function gotoSlide(slideNum) {
slidenum = parseInt(slideNum)
if (!isNaN(slidenum)) {
showSlide()
}
}
function showFirstSlide() {
slidenum = 0
checkSlideParameter();
showSlide()
}
function showSlide(back_step) {
if(slidenum < 0) {
slidenum = 0
return
}
if(slidenum > (slideTotal - 1)) {
slidenum = slideTotal - 1
return
}
currentSlide = slides.eq(slidenum)
var transition = currentSlide.attr('data-transition')
var fullPage = currentSlide.find(".content").is('.full-page');
if (back_step || fullPage) {
transition = 'none'
}
$('#preso').cycle(slidenum, transition)
if (fullPage) {
$('#preso').css({'width' : '100%', 'overflow' : 'visible'});
currentSlide.css({'width' : '100%', 'text-align' : 'center', 'overflow' : 'visible'});
}
percent = getSlidePercent()
$("#slideInfo").text((slidenum + 1) + '/' + slideTotal + ' - ' + percent + '%')
if(!back_step) {
// determine if there are incremental bullets to show
// unless we are moving backward
determineIncremental()
} else {
incrCurr = 0
incrSteps = 0
}
location.hash = slidenum + 1;
removeResults();
var currentContent = $(currentSlide).find(".content")
currentContent.trigger("showoff:show");
return getCurrentNotes()
}
function getSlideProgress()
{
return (slidenum + 1) + '/' + slideTotal
}
function getCurrentNotes()
{
var notes = currentSlide.find("p.notes").text()
$('#notesInfo').text(notes)
return notes
}
function getSlidePercent()
{
return Math.ceil(((slidenum + 1) / slideTotal) * 100)
}
function determineIncremental()
{
incrCurr = 0
incrCode = false
incrElem = currentSlide.find(".incremental > ul > li")
incrSteps = incrElem.size()
if(incrSteps == 0) {
// also look for commandline
incrElem = currentSlide.find(".incremental > pre > code > code")
incrSteps = incrElem.size()
incrCode = true
}
incrElem.each(function(s, elem) {
$(elem).css('visibility', 'hidden');
})
}
function prevStep()
{
var event = jQuery.Event("showoff:prev");
$(currentSlide).find(".content").trigger(event);
if (event.isDefaultPrevented()) {
return;
}
slidenum--
return showSlide(true) // We show the slide fully loaded
}
function nextStep()
{
var event = jQuery.Event("showoff:next");
$(currentSlide).find(".content").trigger(event);
if (event.isDefaultPrevented()) {
return;
}
if (incrCurr >= incrSteps) {
slidenum++
return showSlide()
} else {
elem = incrElem.eq(incrCurr)
if (incrCode && elem.hasClass('command')) {
incrElem.eq(incrCurr).css('visibility', 'visible').jTypeWriter({duration:1.0})
} else {
incrElem.eq(incrCurr).css('visibility', 'visible')
}
incrCurr++
}
}
function doDebugStuff()
{
if (debugMode) {
$('#debugInfo').show()
debug('debug mode on')
} else {
$('#debugInfo').hide()
}
}
var notesMode = false
function toggleNotes()
{
notesMode = !notesMode
if (notesMode) {
$('#notesInfo').show()
debug('notes mode on')
} else {
$('#notesInfo').hide()
}
}
function debug(data)
{
$('#debugInfo').text(data)
}
// See e.g. http://www.quirksmode.org/js/keys.html for keycodes
function keyDown(event)
{
var key = event.keyCode;
if (event.ctrlKey || event.altKey || event.metaKey)
return true;
debug('keyDown: ' + key)
if (key >= 48 && key <= 57) // 0 - 9
{
gotoSlidenum = gotoSlidenum * 10 + (key - 48);
return true;
}
if (key == 13) {
if (gotoSlidenum > 0) {
debug('go to ' + gotoSlidenum);
slidenum = gotoSlidenum - 1;
showSlide(true);
gotoSlidenum = 0;
} else {
debug('executeCode');
var $jsCode = $('.execute .sh_javascript code:visible')
if ($jsCode.length > 0) {
executeCode.call($jsCode);
}
var $rubyCode = $('.execute .sh_ruby code:visible')
if ($rubyCode.length > 0) {
executeRuby.call($rubyCode);
}
var $coffeeCode = $('.execute .sh_coffeescript code:visible')
if ($coffeeCode.length > 0) {
executeCoffee.call($coffeeCode);
}
}
}
if (key == 16) // shift key
{
shiftKeyActive = true;
}
if (key == 32) // space bar
{
if (shiftKeyActive) {
prevStep()
} else {
nextStep()
}
}
else if (key == 68) // 'd' for debug
{
debugMode = !debugMode
doDebugStuff()
}
else if (key == 37 || key == 33 || key == 38) // Left arrow, page up, or up arrow
{
prevStep()
}
else if (key == 39 || key == 34 || key == 40) // Right arrow, page down, or down arrow
{
nextStep()
}
else if (key == 82) // R for reload
{
if (confirm('really reload slides?')) {
loadSlides(loadSlidesBool, loadSlidesPrefix)
showSlide()
}
}
else if (key == 84 || key == 67) // T or C for table of contents
{
$('#navmenu').toggle().trigger('click')
}
else if (key == 90 || key == 191) // z or ? for help
{
$('#help').toggle()
}
else if (key == 66 || key == 70) // f for footer (also "b" which is what kensington remote "stop" button sends
{
toggleFooter()
}
else if (key == 78) // 'n' for notes
{
toggleNotes()
}
else if (key == 27) // esc
{
removeResults();
}
else if (key == 80) // 'p' for preshow
{
runPreShow();
}
return true
}
function toggleFooter()
{
$('#footer').toggle()
}
function keyUp(event) {
var key = event.keyCode;
debug('keyUp: ' + key);
if (key == 16) // shift key
{
shiftKeyActive = false;
}
}
function swipeLeft() {
nextStep();
}
function swipeRight() {
prevStep();
}
function ListMenu(s)
{
this.slide = s
this.typeName = 'ListMenu'
this.itemLength = 0;
this.items = new Array();
this.addItem = function (key, text, slide) {
if (key.length > 1) {
thisKey = key.shift()
if (!this.items[thisKey]) {
this.items[thisKey] = new ListMenu(slide)
}
this.items[thisKey].addItem(key, text, slide)
} else {
thisKey = key.shift()
this.items[thisKey] = new ListMenuItem(text, slide)
}
}
this.getList = function() {
var newMenu = $("<ul>")
for(var i in this.items) {
var item = this.items[i]
var domItem = $("<li>")
if (item.typeName == 'ListMenu') {
choice = $("<a rel=\"" + (item.slide - 1) + "\" href=\"#\">" + i + "</a>")
domItem.append(choice)
domItem.append(item.getList())
}
if (item.typeName == 'ListMenuItem') {
choice = $("<a rel=\"" + (item.slide - 1) + "\" href=\"#\">" + item.slide + '. ' + item.textName + "</a>")
domItem.append(choice)
}
newMenu.append(domItem)
}
return newMenu
}
}
function ListMenuItem(t, s)
{
this.typeName = "ListMenuItem"
this.slide = s
this.textName = t
}
var removeResults = function() {
$('.results').remove();
};
var print = function(text) {
removeResults();
var _results = $('<div>').addClass('results').html($.print(text, {max_string:500}));
$('body').append(_results);
_results.click(removeResults);
};
function executeCode () {
result = null;
var codeDiv = $(this);
codeDiv.addClass("executing");
eval(codeDiv.text());
setTimeout(function() { codeDiv.removeClass("executing");}, 250 );
if (result != null) print(result);
}
$('.execute .sh_javascript code').live("click", executeCode);
function executeRuby () {
var codeDiv = $(this);
codeDiv.addClass("executing");
$.get('/eval_ruby', {code: codeDiv.text()}, function(result) {
if (result != null) print(result);
codeDiv.removeClass("executing");
});
}
$('.execute .sh_ruby code').live("click", executeRuby);
function executeCoffee() {
result = null;
var codeDiv = $(this);
codeDiv.addClass("executing");
// Coffeescript encapsulates everything, so result must be attached to window.
var code = codeDiv.text() + ';window.result=result;'
eval(CoffeeScript.compile(code));
setTimeout(function() { codeDiv.removeClass("executing");}, 250 );
if (result != null) print(result);
}
$('.execute .sh_coffeescript code').live("click", executeCoffee);
/********************
PreShow Code
********************/
var preshow_seconds = 0;
var preshow_secondsLeft = 0;
var preshow_secondsPer = 8;
var preshow_running = false;
var preshow_timerRunning = false;
var preshow_current = 0;
var preshow_images;
var preshow_imagesTotal = 0;
var preshow_des = null;
function runPreShow() {
if(preshow_running) {
stopPreShow()
} else {
var minutes = prompt("Minutes from now to start")
preshow_secondsLeft = parseFloat(minutes) * 60
toggleFooter()
$.getJSON("preshow_files", false, function(data) {
$('#preso').after("<div id='preshow'></div><div id='tips'></div><div id='preshow_timer'></div>")
$.each(data, function(i, n) {
if(n == "preshow.json") {
// has a descriptions file
$.getJSON("/file/_preshow/preshow.json", false, function(data) {
preshow_des = data
})
} else {
$('#preshow').append('<img ref="' + n + '" src="/file/_preshow/' + n + '"/>')
}
})
startPreShow()
})
}
}
function startPreShow() {
if (!preshow_running) {
preshow_running = true
preshow_seconds = 0
preshow_images = $('#preshow > img')
preshow_imagesTotal = preshow_images.size()
nextPreShowImage()
if(!preshow_timerRunning) {
setInterval(function() {
preshow_timerRunning = true
if (!preshow_running) { return }
preshow_seconds++
preshow_secondsLeft--
if (preshow_secondsLeft < 0) {
stopPreShow()
}
if (preshow_seconds == preshow_secondsPer) {
preshow_seconds = 0
nextPreShowImage()
}
addPreShowTips()
}, 1000)
}
}
}
function addPreShowTips() {
time = secondsToTime(preshow_secondsLeft)
$('#preshow_timer').text(time + ' to go-time')
var des = preshow_des && preshow_des[tmpImg.attr("ref")]
if(des) {
$('#tips').show()
$('#tips').text(des)
} else {
$('#tips').hide()
}
}
function secondsToTime(sec) {
min = Math.floor(sec / 60)
sec = sec - (min * 60)
if(sec < 10) {
sec = "0" + sec
}
return min + ":" + sec
}
function stopPreShow() {
preshow_running = false
$('#preshow').remove()
$('#tips').remove()
$('#preshow_timer').remove()
toggleFooter()
loadSlides(loadSlidesBool, loadSlidesPrefix);
}
function nextPreShowImage() {
preshow_current += 1
if((preshow_current + 1) > preshow_imagesTotal) {
preshow_current = 0
}
$("#preso").empty()
tmpImg = preshow_images.eq(preshow_current).clone()
$(tmpImg).attr('width', '1020')
$("#preso").html(tmpImg)
}
/********************
End PreShow Code
********************/