simpleWebSlides.js

   1 /*
   2   Namespace object.
   3 */
   4
   5 var SWS = SWS || {};
   6
   7
   8
   9 SWS.Utils = new function () {
  10     var self = this;
  11
  12     self.isUndefined = function (o) { return typeof o == "undefined"; };
  13     self.push2 = function (t, i, v) {
  14         if ((typeof t[i]) == 'undefined') {
  15             t[i] = new Array();
  16         };
  17         var l = t[i].length;
  18         t[i][l] = v;
  19     };
  20
  21     self.isEmpty = function (o) {
  22         for(var _ in o) return false;
  23         return true;
  24     };
  25
  26     self.parseFrameSpec = function (s) {
  27         var elems = s.split("_");
  28         var result = {};
  29         var min_last = 10000;
  30         var max_value = -1;
  31         for(var i = 0; i < elems.length; i++){
  32             var bounds = elems[i].split("-");
  33             if (bounds.length > 2 || bounds.length == 0) return {};
  34             if (bounds.length == 1) bounds[1] = bounds[0];
  35             var a = parseInt(bounds[0]);
  36             var b = parseInt(bounds[1])
  37             if (!isFinite(a) || !isFinite(b)) return {};
  38             a = Math.min(a, 1000); // don't allow more than 1000 frames/slide
  39             b = Math.min(b, 1000);
  40             if (b > max_value) max_value = b;
  41             for (var j = a; j <= b; j++)
  42                 result[j] = true;
  43         };
  44         return result;
  45     };
  46
  47     self.getParameterByName = function (name) {
  48         name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
  49         var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
  50         results = regex.exec(location.search);
  51         return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
  52     }
  53 };
  54
  55
  56
  57
  58 SWS.Templates = new function () {
  59     var self = this;
  60     self.helpPanel = "<div id='sws-help-panel-canvas'>\
  61 <h1>Keyboard shortcuts</h1>\
  62 <table>\
  63 <tr ><td style='color:#f55;'>h</td><td style='color:#f55;'> toggle help</td></tr>\
  64 <tr><td>c</td><td> toggle the control panel</td></tr>\
  65 <tr><td>Left, PgUp,swipe left</td><td> previous step</td></tr>\
  66 <tr><td>Right, PgDown, Space, swipe right</td><td> next step</td></tr>\
  67 <tr><td>p</td><td> previous slide</td></tr>\
  68 <tr><td>n</td><td> next slide</td></tr>\
  69 <tr><td>Home</td><td> first slide</td></tr>\
  70 <tr><td>End</td><td> last slide</td></tr>\
  71 </table>\
  72 </div>";
  73     self.controlPanel = "<div id='sws-control-panel-canvas'><div id='sws-control-panel'>\
  74 <div id='sws-control-panel-title-bar'>\
  75 <a title='Toggle fullscreen' id='sws-control-panel-fullscreen' class='sws-symbol' onclick='SWS.Presentation.toggleFullScreen();'></a>\
  76 <a title='Close panel' id='sws-control-panel-close' onclick='$(\"#sws-control-panel-canvas\").toggle();'>&#x2716;</a>\
  77 </div>\
  78 <div id='sws-control-panel-options'>\
  79 <span title='Change the aspect ratio' class='sws-symbol' >&#x1f4bb;</span><select id='sws-aspect-select' onchange='SWS.Presentation.changeAspect();'>\
  80 <option value='sws-aspect-4-3' selected='selected'>4:3</option>\
  81 <option value='sws-aspect-16-9'>16:9</option>\
  82 <option value='sws-aspect-16-10'>16:10</option>\
  83 </select>\
  84 <span title='Change the theme' class='sws-symbol'>&#x1f3a8;</span><select id='sws-theme-select' onchange='SWS.Presentation.changeTheme();'></select>\
  85 <a onclick='SWS.Presentation.openPrint()' ><span title='Open Print-Out' class='sws-symbol'>&#59158;</span></a>\
  86 </div>\
  87 <div id='sws-control-panel-navigation'>\
  88 <a title='First slide' class='sws-symbol' onclick='SWS.Presentation.goToSlide(SWS.Presentation.firstSlide());' >&#x23ee;</a>\
  89 <a title='Previous slide' class='sws-symbol' onclick='SWS.Presentation.previousSlide();SWS.Presentation.refresh();'>&#x23ea;</a>\
  90 <a title='Previous step' class='sws-symbol' style='-webkit-transform: scaleX(-1);' onclick='SWS.Presentation.previous();SWS.Presentation.refresh();'>&#x25b6;</a>\
  91 <a title='Next step' class='sws-symbol' onclick='SWS.Presentation.next();SWS.Presentation.refresh();'>&#x25b6;</a>\
  92 <a title='Next slide' class='sws-symbol' onclick='SWS.Presentation.nextSlide();SWS.Presentation.refresh();'>&#x23e9;</a>\
  93 <a title='Last slide' class='sws-symbol' onclick='SWS.Presentation.goToSlide(SWS.Presentation.lastSlide());'>&#x23ed;</a>\
  94 <br/>\
  95 <span class='sws-symbol'>&#xe4ae;</span><input type='text' id='sws-control-panel-slide-input' oninput='SWS.Presentation.goToSlide($(\"#sws-control-panel-slide-input\").val()-1);'></input><span id='sws-control-panel-total-slides'></span>\
  96 <input type='range' title='Navigate the presentation' id='sws-control-panel-navigation-bar' onchange='SWS.Presentation.navigate();' step='1'></input>\
  97 </div>\
  98 </div>\
  99 </div>";
 100     self.slideActivate = function (o) {
 101         if (!(o.hasClass("sws-active-slide"))){
 102             o.removeClass("sws-inactive-slide").addClass("sws-active-slide");
 103         };
 104     };
 105
 106     self.slideDeactivate = function (o) {
 107         if (!(o.hasClass("sws-inactive-slide"))){
 108             o.removeClass("sws-active-slide").addClass("sws-inactive-slide");
 109         };
 110     };
 111
 112     self.slideChange = function (from, to) {
 113         var canvas = $(".sws-canvas");
 114         self.slideDeactivate($(canvas[from]));
 115         self.slideActivate($(canvas[to]));
 116     };
 117
 118     self.objectActivate = function (o) {
 119         if (!(o.hasClass("sws-active-object"))){
 120             o.removeClass("sws-inactive-object").addClass("sws-active-object");
 121             return true;
 122         };
 123         return false;
 124     };
 125
 126     self.objectDeactivate = function (o) {
 127         if (!(o.hasClass("sws-inactive-object"))){
 128             o.addClass("sws-inactive-object").removeClass("sws-active-object");
 129             return true;
 130         };
 131         return false;
 132     };
 133
 134     self.updateFooter = function (o) {
 135         var footer = o.find(".sws-footer");
 136         if (footer.length && (footer.children("*").length == 0)) {
 137             var i = SWS.Presentation.getCurrentSlide();
 138             var cur = $( "<span class='sws-current-slide-number'>"
 139                          + (i + 1)
 140                          +"</span>");
 141             var sep = $( "<span class='sws-slide-num-sep' />");
 142             var tot = $( "<span class='sws-last-slide-number'>"
 143                          + (SWS.Presentation.getNumSlides())
 144                          +"</span>");
 145             footer.append(cur).append(sep).append(tot);
 146         };
 147     };
 148     self.updateHeader = function (o) {};
 149 };
 150 SWS.ConfigBuilder = function () {
 151     var self = this;
 152     self['sws-object-activate'] = SWS.Templates.objectActivate;
 153     self['sws-object-deactivate'] = SWS.Templates.objectDeactivate;
 154     self['sws-slide-change'] = SWS.Templates.slideChange;
 155     self['sws-update-footer'] = SWS.Templates.updateFooter;
 156     self['sws-update-header'] = SWS.Templates.updateHeader;
 157 };
 158
 159 SWS.Defaults = new SWS.ConfigBuilder ();
 160
 161 SWS.Config = new SWS.ConfigBuilder ();
 162
 163
 164 SWS.Effects = new function () {
 165     var self = this;
 166
 167     self.objectDeactivateFadeOut = function (o) {
 168         if (o.is("embed")) return;
 169         o.animate({'opacity': '0'}, 200,
 170                   function () {
 171
 172                       SWS.Templates.objectDeactivate(o);
 173                   });
 174     };
 175
 176     self.objectActivateFadeIn = function (o) {
 177
 178         if (SWS.Templates.objectActivate(o)){
 179             o.animate({'opacity': '1' }, 200);
 180         };
 181
 182     };
 183
 184     self.slideChangeHorizontalFlip = function (from, to){
 185         var f = SWS.Presentation.getSlide(from);
 186         var t = SWS.Presentation.getSlide(to);
 187         f.animate({ 'left': '50%', 'width': '0pt', 'opacity':'0' }, 150,
 188                   function  () {
 189                       SWS.Templates.slideDeactivate(f);
 190                       f.css({'left':'0%', 'width': '100%'});
 191                       t.css({ 'left': '50%', 'width': '0pt','opacity':'0' });
 192                       SWS.Templates.slideActivate(t);
 193                       t.animate({'left':'0%', 'width': '100%','opacity':'1'});
 194                   });
 195     };
 196     self.slideChangeFadeOutIn = function (from, to) {
 197         var f = SWS.Presentation.getSlide(from);
 198         var t = SWS.Presentation.getSlide(to);
 199         f.animate({ 'opacity': '0'}, 150,
 200                   function () { SWS.Templates.slideDeactivate(f);
 201                                 SWS.Templates.slideActivate(t);
 202                                 t.css('opacity', '0');
 203                                 t.animate({ 'opacity': '1'}, 150);
 204                               });
 205     };
 206     self.slideChangeHorizontalSlide = function (from, to) {
 207         var f = SWS.Presentation.getSlide(from);
 208         var t = SWS.Presentation.getSlide(to);
 209         if (from < to) {
 210             t.css('left', '100%');
 211             t.css('opacity', '1');
 212             SWS.Templates.slideActivate(t);
 213             f.animate({ 'left': '-100%' }, 250, function () { SWS.Templates.slideDeactivate(f);
 214                                                               f.css('opacity', '0');
 215                                                               t.animate({ 'left': '0%' }, 250);
 216                                                             });
 217         } else {
 218             t.css('left', '-100%');
 219             SWS.Templates.slideActivate(t);
 220             f.animate({ 'left': '100%' }, 250, function () { SWS.Templates.slideDeactivate(f);
 221                                                              f.css('opacity', '0');
 222                                                            });
 223             t.css('opacity', '1');
 224             t.animate({ 'left': '0%' }, 250);
 225         };
 226     };
 227
 228
 229     self.slideChangeVerticalSlide = function (from, to) {
 230         var f = SWS.Presentation.getSlide(from);
 231         var t = SWS.Presentation.getSlide(to);
 232         if (from < to) {
 233             t.css('top', '100%');
 234             SWS.Templates.slideActivate(t);
 235             f.animate({ 'top': '-100%' }, 250, function () { SWS.Templates.slideDeactivate(f); });
 236             t.animate({ 'top': '0%' }, 250);
 237         } else {
 238             t.css('top', '-100%');
 239             SWS.Templates.slideActivate(t);
 240             f.animate({ 'top': '100%' }, 250, function () { SWS.Templates.slideDeactivate(f); });
 241             t.animate({ 'top': '0%' }, 250);
 242         };
 243     };
 244
 245 };
 246
 247 SWS.Fullscreen = new function () {
 248     var self = this;
 249
 250     if (SWS.Utils.isUndefined(document.fullScreen)) {
 251         if (SWS.Utils.isUndefined(document.mozfullScreen)) {
 252             self.status = function () { return document.webkitIsFullScreen; };
 253             self.enter = function(e) {
 254                 e.webkitRequestFullScreen();
 255             };
 256             self.exit = function () {
 257                 document.webkitCancelFullScreen();
 258             };
 259
 260         } else {
 261             self.status = function () { return document.mozfullScreen; };
 262             self.enter = function(e) {
 263                 e.mozRequestFullScreen();
 264             };
 265             self.exit = function () {
 266                 document.mozCancelFullScreen();
 267             };
 268
 269         };
 270     } else {
 271             self.status = function () { return document.fullScreen; };
 272             self.enter = function(e) {
 273                 e.requestFullScreen();
 274             };
 275             self.exit = function () {
 276                 document.cancelFullScreen();
 277             };
 278
 279     };
 280
 281
 282 };
 283
 284 SWS.Presentation = new function () {
 285
 286
 287     var self = this;
 288
 289     //TODO move outside of the Presentation object
 290
 291
 292     var _total_slides;
 293     var _initialized = false;
 294     var _disable_input_events = false;
 295     var _print_mode = false;
 296     var _slide_callbacks = new Array ();
 297     var _total_steps = -1;
 298     var _current_theme = "";
 299
 300     self.getNumSlides = function () { return _total_slides; };
 301
 302     self.getSlide = function(i) {
 303         return $($(".sws-canvas")[i]);
 304     };
 305
 306     self.registerCallback = function (i, f) {
 307         if (_initialized) return;
 308         //jQuery does not seem to work well
 309         //on a partial DOM
 310         var slides = $(".sws-slide");
 311         var h1s = $("body").children("h1");
 312         var slide_num = slides.add(h1s).length - 1;
 313
 314         SWS.Utils.push2(_slide_callbacks, slide_num,{ 'fn': f, 'frame': i });
 315
 316     };
 317
 318     if (typeof(Storage)!=="undefined"){
 319         self.getCurrentSlide = function () {
 320             //unary + casts to integer
 321             var i = +(sessionStorage.getItem("current_slide"));
 322             if (!(i >= 0 && i < self.getNumSlides())){
 323                 return 0;
 324             } else {
 325                 return i;
 326             };
 327         };
 328
 329         self.setCurrentSlide = function (i) {
 330             sessionStorage.setItem("current_slide", i);
 331         };
 332
 333         self.showHelpAtStartup = function () {
 334             var r = sessionStorage.getItem("show_help");
 335             if (r == "hide") return false;
 336             sessionStorage.setItem("show_help", "hide");
 337             return true;
 338         };
 339
 340     } else {
 341         var _current_slide = 0;
 342         self.getCurrentSlide = function () { return _current_slide; };
 343         self.setCurrentSlide = function (i) { _current_slide = i; };
 344         self.showHelpAtStartup = function () { return false; };
 345     };
 346     self.firstSlide = function () { return 0; };
 347     self.lastSlide = function () { return self.getNumSlides() - 1; };
 348     self.refresh = function () {
 349         /* block upcoming input event until all animations are finished */
 350         _disable_input_events = true;
 351
 352         var canvas = $(".sws-canvas");
 353         var from_slide_num = canvas.index($(".sws-active-slide"));
 354         var to_slide_num = self.getCurrentSlide();
 355         var watch_slide_anim = false;
 356         var to_slide = $(canvas[to_slide_num]);
 357         var from_slide = $(canvas[from_slide_num]);
 358         var slide_change = (from_slide_num != to_slide_num);
 359
 360
 361         var info = to_slide.data("sws-frame-info");
 362         SWS.Config['sws-update-header'](to_slide);
 363         SWS.Config['sws-update-footer'](to_slide);
 364
 365         if (slide_change) {
 366             //Launch a slide transition:
 367             SWS.Config['sws-slide-change'](from_slide_num, to_slide_num);
 368             watch_slide_anim = true;
 369             for (var i = 0; i < info.callbacks.at_slide.length;i++){
 370                 info.callbacks.at_slide[i](to_slide);
 371             };
 372         };
 373
 374
 375         var cur = info.current;
 376         var custom = info.custom;
 377         var real_slide = to_slide.find(".sws-slide");
 378         var dont_touch = real_slide.find("sws-protect").find("*").addBack();
 379         real_slide.find("*").addBack().not(dont_touch).each(function (i){
 380             var frameset = $(this).data("sws-frame-set") || {};
 381             if (frameset[cur])
 382                 SWS.Config['sws-object-activate']($(this));
 383             else
 384                 SWS.Config['sws-object-deactivate']($(this));
 385         });
 386
 387
 388         var all = $(from_slide).add(to_slide);
 389         all.find("*").addBack().promise().done(function() {
 390             var callbacks;
 391             //execute callbacks when all elements are finished transitioning
 392             if (callbacks = info.callbacks.at_frame[self.getCurrentFrame()]){
 393                 for (var k = 0; k < callbacks.length; k++)
 394                     callbacks[k]($(to_slide));
 395             };
 396             all.find("*").addBack().promise().done(function() {
 397                 //wait for all elements to finish transitionning, in case a callback animate something
 398                 //an denable _input_events again.
 399                 _disable_input_events = false;
 400             });
 401         });
 402     };
 403
 404     self.nextSlide = function () {
 405         self.setCurrentSlide(Math.min(self.getCurrentSlide()+1,
 406                                       self.lastSlide()));
 407         self.setCurrentFrame(self.firstFrame());
 408     };
 409
 410     self.previousSlide = function () {
 411         self.setCurrentSlide(Math.max(self.getCurrentSlide()-1,
 412                                       self.firstSlide()));
 413         self.setCurrentFrame(self.firstFrame());
 414     };
 415
 416     self.getFrameInfo = function () {
 417
 418         var i = self.getCurrentSlide();
 419         var canvas = $($(".sws-canvas")[i]);
 420         var infos = canvas.data("sws-frame-info");
 421         return infos;
 422     };
 423
 424     self.getTotalSteps = function () {
 425         if (_total_steps >= 0) return _total_steps;
 426         _total_steps = 0;
 427         $(".sws-canvas").each(function(i) {
 428             var canvas = $($(".sws-canvas")[i]);
 429             var infos = canvas.data("sws-frame-info");
 430             _total_steps += infos.last + 1;
 431         });
 432         return _total_steps;
 433     };
 434
 435     self.getCurrentFrame = function () { return self.getFrameInfo().current; };
 436     self.setCurrentFrame = function (i) { self.getFrameInfo().current = i; };
 437     self.firstFrame = function () { return 0; };
 438     self.lastFrame = function () { return self.getFrameInfo().last; };
 439
 440     self.nextFrame = function () {
 441         self.setCurrentFrame(Math.min(self.getCurrentFrame()+1,
 442                                       self.lastFrame()));
 443
 444     };
 445     self.previousFrame = function () {
 446         self.setCurrentFrame(Math.max(self.getCurrentFrame()-1,
 447                                        self.firstFrame()));
 448     };
 449
 450     self.next = function () {
 451         var i = self.getCurrentFrame();
 452         if (i == self.lastFrame()) {
 453             self.nextSlide();
 454             self.setCurrentFrame(self.firstFrame());
 455         } else
 456             self.nextFrame();
 457     };
 458
 459     self.previous = function () {
 460         var i = self.getCurrentFrame();
 461         if (i == self.firstFrame()){
 462             self.previousSlide();
 463             self.setCurrentFrame(self.lastFrame());
 464         }
 465         else
 466             self.previousFrame();
 467     };
 468
 469     self.goToSlide = function (s, f) {
 470         if (SWS.Utils.isUndefined(f))
 471             f = 0;
 472         if (!(s >= self.firstSlide() && s <= self.lastSlide())) return;
 473         self.setCurrentSlide(s);
 474         if (!(f >= self.firstFrame() && f <= self.lastFrame())) f = 0;
 475         self.setCurrentFrame(f);
 476         self.refresh();
 477     };
 478
 479     self.cycleStyle = function() {
 480         var styles = $("head").children('link[rel$="stylesheet"][title]');
 481         var j = styles.index(styles.filter(':not(:disabled)'));
 482         styles[j].disabled = true;
 483         if (++j == styles.length) j = 0;
 484         styles[j].disabled = false;
 485     };
 486
 487
 488     self.printMode = function () {
 489         _print_mode = true;
 490         var progress = $("<div style='position:fixed;top:0pt;left:0pt;background:white;color:black;width:100%;height:100vh;z-index:200;' id='sws-print-progress'>Rendering presentation: <span id='sws-percent-progress'></span>%</div>");
 491         $("body").append(progress);
 492
 493         $("html").removeClass("sws-display").addClass("sws-print");
 494         self.goToSlide(0,0);
 495         var steps = self.getTotalSteps();
 496         var total_steps = steps;
 497         var loop;
 498         loop = function () {
 499             if (steps >= 0) {
 500                 //Crazy workaround for chromium
 501                 ($("link.sws-theme[rel='stylesheet']")[0]).disabled = false;
 502                 $(".sws-canvas").find("*").addBack().promise().done(function() {
 503                     var percent = ((total_steps - steps) / total_steps) * 100;
 504                     $("#sws-percent-progress").text(Math.round(percent));
 505                     SWS.Config['sws-slide-change'] = SWS.Templates.slideChange;
 506                     self.refresh();
 507                     $($(".sws-canvas")[self.getCurrentSlide()]).css('opacity', 1 );
 508                     self.next();
 509                     steps--;
 510                     loop();
 511                     })
 512             } else {
 513                 $("#sws-percent-progress").text(100);
 514                 progress.remove();
 515                 window.status = 'Ready';
 516                 window.print();
 517             }
 518         };
 519         loop();
 520
 521     }
 522
 523     self.buildFullTOC = function () {
 524
 525         var build_sections = function (doc) {
 526             var res = [];
 527             var h1s = doc.find("body").first().children("h1");
 528             var slides = doc.find("body").first().children(".sws-slide");
 529             var slide_num = 1;
 530             var collection = h1s.add(slides);
 531             collection.each (function () {
 532                 if ($(this).is("h1")) {
 533                     res.push({ 'title' : $(this).text(),
 534                                'slide' : slide_num });
 535                 } else {
 536                     slide_num++;
 537                 }
 538             });
 539             return res;
 540         };
 541
 542         var toc = [];
 543
 544         var append = function (a,e) {
 545             return a.push(e);
 546         };
 547         var prepend = function (a,e) {
 548             return a.unshift(e);
 549         };
 550
 551         var loop = function (doc, dir, add, ignoreFirst) {
 552             if (ignoreFirst !== true) {
 553                 var this_toc = { 'title' : doc.find("title").first().text()
 554                                  .replace ("&", "&amp;")
 555                                  .replace("'","&apos;")
 556                                  .replace('"', "&quot;")
 557                                  .replace("<", "&lt;")
 558                                  .replace(">", "&gt;"),
 559                                  'sections' : build_sections(doc) };
 560                 add(toc, this_toc);
 561             };
 562             var url = doc.find(dir).first().attr("href");
 563             if (!SWS.Utils.isUndefined(url) && url != "") {
 564                 $.ajax({ 'url' : url, 'async' : false ,'success' : function (page) {
 565                     loop ($(page), dir, add, false);
 566                 }});
 567             };
 568         };
 569         loop ($(document), ".sws-previous", prepend, false);
 570         return toc;
 571
 572     };
 573
 574
 575
 576     var _startTouch = null;
 577
 578     self.inputHandler = function (event) {
 579         if (_disable_input_events || _print_mode) return;
 580         var code = 0;
 581         switch (event.type) {
 582         case 'touchstart':
 583             _startTouch = event.changedTouches[0];
 584             return;
 585         case 'touchend':
 586             if (!_startTouch) return;
 587             var _endTouch = event.changedTouches[0];
 588             var Xdist = _endTouch.clientX - _startTouch.clientX;
 589             var Ydist = _endTouch.clientY - _startTouch.clientY;
 590             if (Xdist > 40) code = 39
 591             else if (Xdist < -40) code = 37
 592             else if (Ydist > 20 && !$("#sws-control-panel-canvas").is(":visible")) code = 67;
 593             else if (Ydist < -20  && $("#sws-control-panel-canvas").is(":visible")) code = 67;
 594             else code = 39;
 595             break;
 596         case 'keydown':
 597             code = event.which;
 598             break;
 599         default:
 600             return;
 601         };
 602
 603         switch (code) {
 604         case 36:/* Home */
 605             self.setCurrentSlide(self.firstSlide());
 606             break;
 607
 608         case 35:/* End */
 609             self.setCurrentSlide(self.lastSlide());
 610             break;
 611         case 32: /* space */
 612         case 34: /* PgDown */
 613         case 39: /* -> */
 614         case 176: /* Multimedia skip forward */
 615         case 179: /* Multimedia play/pause */
 616             if (self.getCurrentSlide() == self.lastSlide()
 617                 && self.getCurrentFrame() == self.lastFrame()) return;
 618             self.next();
 619             break;
 620         case 78: /* n */
 621             self.nextSlide();
 622             break;
 623         case 8: /* backspace */
 624         case 33: /* PgUp */
 625         case 37: /* <-   */
 626         case 177: /* Multimedia skip backward */
 627             self.previous();
 628             break;
 629         case 80: /* p */
 630             self.previousSlide();
 631             break;
 632         case 83: /* s */
 633                 self.cycleStyle();
 634             return;
 635         case 67: /* c */
 636             $("#sws-control-panel-canvas").toggle();
 637             return;
 638         case 72: /* h */
 639             $("#sws-help-panel-canvas").toggle();
 640
 641         default:
 642             return;
 643         };
 644         self.refresh();
 645 };
 646
 647
 648
 649     function init_canvas(canvas, custom) {
 650         var cur_frame = 0;
 651         var last_frame = canvas.find(".sws-pause").length;
 652         //Add all regular elements to the frame list
 653         var slide = $(canvas.find(".sws-slide")[0]);
 654
 655         var callbacks = { at_slide : new Array(),
 656                           at_frame : new Array() }
 657
 658         if (SWS.Utils.isUndefined(custom)) {
 659             custom = new Array ();
 660         };
 661
 662         for (var i = 0; i < custom.length; i++) {
 663             if (isFinite(custom[i].frame)){
 664                 var num = +(custom[i].frame);
 665                 if (num > last_frame) last_frame = num;
 666                 SWS.Utils.push2(callbacks.at_frame, num, custom[i].fn);
 667             } else if (custom[i].frame == "slide")
 668                 callbacks.at_slide.push(custom[i].fn);
 669             else {
 670                 var frame_set = SWS.Utils.parseFrameSpec(custom[i].frame);
 671                 for(var f in frame_set){
 672                     if (f > last_frame) last_frame = f;
 673                     SWS.Utils.push2(callbacks.at_frame, +(f), custom[i].fn);
 674                 };
 675             }
 676         };
 677
 678         var specials = $([]);
 679
 680         slide.find('*[class*="sws-onframe-"]').each(function(_){
 681             var cls = $(this).attr('class');
 682             var idx = cls.indexOf("sws-onframe-");
 683             if (idx >= 0) {
 684                 var end = cls.indexOf(" ", idx);
 685                 end = (end == -1) ? cls.length : end;
 686                 var spec = cls.substring(idx+12, end);
 687                 var o = SWS.Utils.parseFrameSpec(spec);
 688                 for(var f in o)
 689                     if (f > last_frame) last_frame = f;
 690                 $(this).find("*").andSelf().each(function(_){
 691                     if (!SWS.Utils.isEmpty(o)){
 692                         $(this).data("sws-frame-set", o);
 693                     }
 694                     specials = specials.add($(this));
 695                 });
 696             };
 697         });
 698
 699         slide.find("*").andSelf().not(specials).each(function(i) {
 700             if ($(this).hasClass("sws-pause"))  cur_frame++;
 701             var o = {};
 702             for (var j = cur_frame; j <= last_frame; j++)
 703                 o[ j ] = true;
 704             if (!SWS.Utils.isEmpty(o))
 705                 $(this).data("sws-frame-set", o);
 706         });
 707
 708         canvas.data("sws-frame-info", { current: 0,
 709                                         last: (last_frame - 0), // force cast to integer
 710                                         callbacks: callbacks
 711                                       });
 712
 713     };
 714
 715     /* Forces redrawing the page without reloading */
 716     self.redraw = function (f) {
 717         if (SWS.Utils.isUndefined(f))
 718             $("body").hide().show(400, function () {
 719                 $("body").css("display","block");
 720                 if (!SWS.Utils.isUndefined(f))
 721                     f();
 722             });
 723     };
 724     self.changeAspect = function() {
 725         if (_print_mode) return;
 726         var newClass = $("#sws-aspect-select").val();
 727         var args = newClass.split("-");
 728         var targetRatio = (args[2] - 0) / (args[3] - 0);
 729         var realRatio = window.innerWidth / window.innerHeight;
 730         var byClass = (targetRatio > realRatio ) ? "sws-by-height" : "sws-by-width";
 731         if ($("html").hasClass(newClass)
 732             && $("html").hasClass(byClass))
 733             return;
 734
 735         $("html").removeClass("sws-aspect-4-3")
 736             .removeClass("sws-aspect-16-9")
 737             .removeClass("sws-aspect-16-10")
 738             .removeClass("sws-by-width")
 739             .removeClass("sws-by-height")
 740             .addClass(newClass).addClass(byClass);
 741         self.redraw();
 742     };
 743
 744     self.getCurrentTheme = function () {
 745         var l = $("link.sws-theme[rel='stylesheet']")[0];
 746
 747         if (l) {
 748             return  l.title;
 749         } else
 750             return ""
 751     };
 752
 753     self.changeTheme = function (name) {
 754         var theme_name;
 755         if (typeof name === 'undefined')
 756             theme_name = $("#sws-theme-select").val()
 757         else
 758             theme_name = name;
 759
 760         _current_theme = theme_name;
 761         $("link.sws-theme").each (function (i) {
 762             var e = this;
 763             var title =  e.title;
 764             if (title == theme_name) {
 765                 e.rel = "stylesheet";
 766                 e.disabled = false;
 767                 e.media="all";
 768             } else {
 769                 e.rel = "alternate stylesheet";
 770                 e.disabled = true;
 771                 e.media="all";
 772             };
 773         });
 774         self.redraw();
 775
 776     };
 777
 778     self.openPrint = function () {
 779         window.open ("?mode=print&theme=" + self.getCurrentTheme());
 780     }
 781     var _fullscreen_icon_on = "&#xe746;";
 782     var _fullscreen_icon_off = "&#xe744;";
 783
 784     self.toggleFullScreen = function () {
 785         if (SWS.Fullscreen.status()) {
 786             SWS.Fullscreen.exit();
 787             $("a#sws-control-panel-fullscreen")
 788                 .html(_fullscreen_icon_off);
 789
 790
 791
 792         } else {
 793             SWS.Fullscreen.enter($("body")[0]);
 794             $("a#sws-control-panel-fullscreen")
 795                 .html(_fullscreen_icon_on);
 796         };
 797     };
 798     function _update_ui() {
 799         var nav = $('#sws-control-panel-navigation-bar');
 800         nav.val(SWS.Presentation.getCurrentSlide() + 1);
 801         $('#sws-control-panel-slide-input').val(nav.val());
 802     }
 803     self.navigate = function () {
 804         self.goToSlide($("#sws-control-panel-navigation-bar").val()-1);
 805         _update_ui();
 806     };
 807
 808
 809     self.init = function () {
 810
 811
 812         $("html").addClass("sws-display");
 813         //$(window).resize(self.redraw);
 814
 815         var slides = $(".sws-slide");
 816         var h1s = $("body").children("h1");
 817         var slide_num = slides.add(h1s).length - 1;
 818
 819         _total_slides = $(".sws-slide").add($("body").children("h1")).length;
 820
 821         var cur = self.getCurrentSlide();
 822         var toc = self.buildFullTOC();
 823         var common_html = "<div class='sws-slide sws-toc'><h1>Plan</h1><ul style='list-style-type:none'>";
 824         var i;
 825         for (i= 0; i < toc.length - 1; i++)
 826             common_html += "<li class='done'>" + (i+1) +
 827             ' ' + toc[i].title + "</li>";
 828
 829         common_html += "<li>" + toc.length + ' ' + toc[toc.length - 1].title;
 830         common_html += "<ul style='list-style-type:none' >";
 831         var sections = toc[toc.length - 1].sections;
 832         $("body").children("h1").each(function (i) {
 833             var this_html = common_html;
 834             var j;
 835             var secnum = toc.length + '.';
 836             for (j = 0; j < i; ++j)
 837                 this_html += "<li class='done'>" + secnum + (j+1) + ' ' +
 838                 sections[j].title + "</li>";
 839             this_html += "<li class='hl'>" + secnum + (i+1) + ' ' +
 840                 sections[i].title + "</li>";
 841             for (j = i+1; j < sections.length; j++)
 842                 this_html += "<li>" + secnum + (j+1) + ' '
 843                 +sections[j].title + "</li>";
 844             this_html += "</ul></li></ul></div>";
 845             $(this).after(this_html);
 846         });
 847
 848         $(".sws-slide").each(function (i) {
 849
 850             var par = $(this).parent();
 851
 852
 853             $(this).remove();
 854             var canvas = $('<div class="sws-canvas"/>');
 855
 856             if (!($(this).hasClass("sws-option-noheader"))) {
 857                 canvas.append($('<div class="sws-header"/>'));
 858             };
 859
 860             if (!$(this).hasClass("sws-cover")) {
 861                 var title = $($(this).find("h1")[0]);
 862                 var title_div = $('<div class="sws-title" />');
 863                 title_div.append(title);
 864                 canvas.append(title_div);
 865             };
 866
 867             var inner = $('<div class="sws-inner-canvas"/>');
 868             var content = $('<div class="sws-content"/>');
 869             $(this).find('script[type="text/javascript"]').remove();
 870             content.append($(this));
 871             inner.append(content);
 872             canvas.append(inner);
 873             var that = this;
 874             [ "sws-cover", "sws-toc" ].forEach(
 875                 function(v) {
 876                     if ($(that).hasClass(v)) {
 877                         inner.addClass(v);
 878                         $(that).removeClass(v);
 879                     }
 880                 });
 881
 882             if (!($(this).hasClass("sws-option-nofooter"))) {
 883                 canvas.append($('<div class="sws-footer"/>'));
 884             };
 885
 886             par.append(canvas);
 887
 888             if (i == cur) {
 889                 canvas
 890                     .addClass("sws-active-slide")
 891                     .removeClass("sws-inactive-slide");
 892             } else {
 893                 canvas
 894                     .addClass("sws-inactive-slide")
 895                     .removeClass("sws-active-slide");
 896             };
 897             init_canvas(canvas,_slide_callbacks[i]);
 898
 899         });
 900
 901         // Initialize the control panel
 902         $("body").append($(SWS.Templates.controlPanel));
 903         $("body").append($(SWS.Templates.helpPanel));
 904         // Fill the theme switcher
 905         $("link.sws-theme").each (function (i) {
 906             var e = $(this);
 907             var opt = "<option value='";
 908             opt += e.attr("title");
 909             opt += "' ";
 910             if (e.attr("rel") == "stylesheet") {
 911                 opt+= "selected='selected'";
 912             };
 913             opt += ">" + e.attr("title") + "</option>";
 914             $("#sws-theme-select").append($(opt));
 915         });
 916         // Set the fullscreen icon
 917         if (SWS.Fullscreen.status()) {
 918             $("a#sws-control-panel-fullscreen")
 919                 .html(_fullscreen_icon_on);
 920         } else {
 921             $("a#sws-control-panel-fullscreen")
 922                 .html(_fullscreen_icon_off);
 923         };
 924         // Put the navigation range at the correct position
 925         var nav = $('#sws-control-panel-navigation-bar');
 926         nav.attr("min", SWS.Presentation.firstSlide() + 1);
 927         nav.attr("max", SWS.Presentation.lastSlide() + 1);
 928         $('#sws-control-panel-total-slides').text('/' + SWS.Presentation.getNumSlides());
 929         _update_ui();
 930         _slide_callbacks = null; /* avoid a leak */
 931         var passed_theme = SWS.Utils.getParameterByName("theme");
 932
 933
 934         //workaround weird chrome CSS loading bug
 935         var f =
 936             function () {
 937                 if (passed_theme == "")
 938                     self.changeTheme();
 939                 else
 940                     self.changeTheme(passed_theme);
 941                 if (SWS.Utils.getParameterByName("mode") == "print") {
 942                     self.printMode();
 943                 }
 944                 else {
 945                     if (self.showHelpAtStartup()) $("#sws-help-panel-canvas").show().delay(5000).hide();
 946                     self.changeAspect();
 947                     self.refresh();
 948                 };
 949                 $(document).keydown(self.inputHandler);
 950                 document.body.addEventListener('touchstart',self.inputHandler, false);
 951                 document.body.addEventListener('touchend',self.inputHandler, false);
 952                 $(window).resize(self.changeAspect);
 953                 _initialized = true;
 954             };
 955         //setTimeout(f, 100);
 956         f();
 957     };
 958
 959 };