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.controlPanel = "<div id='sws-control-panel-canvas'><div id='sws-control-panel'>\
  61 <div id='sws-control-panel-title-bar'>\
  62 <a title='Toggle fullscreen' id='sws-control-panel-fullscreen' class='sws-symbol' onclick='SWS.Presentation.toggleFullScreen();'></a>\
  63 <a title='Close panel' id='sws-control-panel-close' onclick='$(\"#sws-control-panel-canvas\").toggle();'>&#x2716;</a>\
  64 </div>\
  65 <div id='sws-control-panel-options'>\
  66 <span title='Change the aspect ratio' class='sws-symbol' >&#x1f4bb;</span><select id='sws-aspect-select' onchange='SWS.Presentation.changeAspect();'>\
  67 <option value='sws-aspect-4-3'>4:3</option>\
  68 <option value='sws-aspect-16-9'>16:9</option>\
  69 <option value='sws-aspect-16-10'>16:10</option>\
  70 </select>\
  71 <span title='Change the theme' class='sws-symbol'>&#x1f3a8;</span><select id='sws-theme-select' onchange='SWS.Presentation.changeTheme();'></select>\
  72 <a onclick='SWS.Presentation.openPrint()' ><span title='Open Print-Out' class='sws-symbol'>&#59158;</span></a>\
  73 </div>\
  74 <div id='sws-control-panel-navigation'>\
  75 <a title='First slide' class='sws-symbol' onclick='SWS.Presentation.goToSlide(SWS.Presentation.firstSlide());' >&#x23ee;</a>\
  76 <a title='Previous slide' class='sws-symbol' onclick='SWS.Presentation.previousSlide();SWS.Presentation.refresh();'>&#x23ea;</a>\
  77 <a title='Previous step' class='sws-symbol' style='-webkit-transform: scaleX(-1);' onclick='SWS.Presentation.previous();SWS.Presentation.refresh();'>&#x25b6;</a>\
  78 <a title='Next step' class='sws-symbol' onclick='SWS.Presentation.next();SWS.Presentation.refresh();'>&#x25b6;</a>\
  79 <a title='Next slide' class='sws-symbol' onclick='SWS.Presentation.nextSlide();SWS.Presentation.refresh();'>&#x23e9;</a>\
  80 <a title='Last slide' class='sws-symbol' onclick='SWS.Presentation.goToSlide(SWS.Presentation.lastSlide());'>&#x23ed;</a>\
  81 <br/>\
  82 <span class='sws-symbol'>&#xe4ae;</span><input type='text' id='sws-control-panel-slide-input' oninput='SWS.Presentation.goToSlide($(\"#sws-control-panel-slide-input\").val()-1);'></input><span id='sws-control-panel-total-slides'></span>\
  83 <input type='range' title='Navigate the presentation' id='sws-control-panel-navigation-bar' onchange='SWS.Presentation.navigate();' step='1'></input>\
  84 </div>\
  85 </div>\
  86 </div>";
  87     self.slideActivate = function (o) {
  88         if (!(o.hasClass("sws-active-slide"))){
  89             o.removeClass("sws-inactive-slide").addClass("sws-active-slide");
  90         };
  91     };
  92
  93     self.slideDeactivate = function (o) {
  94         if (!(o.hasClass("sws-inactive-slide"))){
  95             o.removeClass("sws-active-slide").addClass("sws-inactive-slide");
  96         };
  97     };
  98
  99     self.slideChange = function (from, to) {
 100         var canvas = $(".sws-canvas");
 101         self.slideDeactivate($(canvas[from]));
 102         self.slideActivate($(canvas[to]));
 103     };
 104
 105     self.objectActivate = function (o) {
 106         if (!(o.hasClass("sws-active-object"))){
 107             o.removeClass("sws-inactive-object").addClass("sws-active-object");
 108             return true;
 109         };
 110         return false;
 111     };
 112
 113     self.objectDeactivate = function (o) {
 114         if (!(o.hasClass("sws-inactive-object"))){
 115             o.addClass("sws-inactive-object").removeClass("sws-active-object");
 116             return true;
 117         };
 118         return false;
 119     };
 120
 121     self.updateFooter = function (o) {
 122         var footer = o.find(".sws-footer");
 123         if (footer.length && (footer.children("*").length == 0)) {
 124             var i = SWS.Presentation.getCurrentSlide();
 125             var cur = $( "<span class='sws-current-slide-number'>"
 126                          + (i + 1)
 127                          +"</span>");
 128             var sep = $( "<span class='sws-slide-num-sep' />");
 129             var tot = $( "<span class='sws-last-slide-number'>"
 130                          + (SWS.Presentation.getNumSlides())
 131                          +"</span>");
 132             footer.append(cur).append(sep).append(tot);
 133         };
 134     };
 135     self.updateHeader = function (o) {};
 136 };
 137 SWS.ConfigBuilder = function () {
 138     var self = this;
 139     self['sws-object-activate'] = SWS.Templates.objectActivate;
 140     self['sws-object-deactivate'] = SWS.Templates.objectDeactivate;
 141     self['sws-slide-change'] = SWS.Templates.slideChange;
 142     self['sws-update-footer'] = SWS.Templates.updateFooter;
 143     self['sws-update-header'] = SWS.Templates.updateHeader;
 144 };
 145
 146 SWS.Defaults = new SWS.ConfigBuilder ();
 147
 148 SWS.Config = new SWS.ConfigBuilder ();
 149
 150
 151 SWS.Effects = new function () {
 152     var self = this;
 153
 154     self.objectDeactivateFadeOut = function (o) {
 155         o.animate({'opacity': '0'}, 200,
 156                   function () {
 157
 158                       SWS.Templates.objectDeactivate(o);
 159                   });
 160     };
 161
 162     self.objectActivateFadeIn = function (o) {
 163
 164         if (SWS.Templates.objectActivate(o)){
 165             o.animate({'opacity': '1' }, 200);
 166         };
 167
 168     };
 169
 170     self.slideChangeHorizontalFlip = function (from, to){
 171         var f = SWS.Presentation.getSlide(from);
 172         var t = SWS.Presentation.getSlide(to);
 173         f.animate({ 'left': '50%', 'width': '0pt', 'opacity':'0' }, 150,
 174                   function  () {
 175                       SWS.Templates.slideDeactivate(f);
 176                       f.css({'left':'0%', 'width': '100%'});
 177                       t.css({ 'left': '50%', 'width': '0pt','opacity':'0' });
 178                       SWS.Templates.slideActivate(t);
 179                       t.animate({'left':'0%', 'width': '100%','opacity':'1'});
 180                   });
 181     };
 182     self.slideChangeFadeOutIn = function (from, to) {
 183         var f = SWS.Presentation.getSlide(from);
 184         var t = SWS.Presentation.getSlide(to);
 185         f.animate({ 'opacity': '0'}, 150,
 186                   function () { SWS.Templates.slideDeactivate(f);
 187                                 SWS.Templates.slideActivate(t);
 188                                 t.css('opacity', '0');
 189                                 t.animate({ 'opacity': '1'}, 150);
 190                               });
 191     };
 192     self.slideChangeHorizontalSlide = function (from, to) {
 193         var f = SWS.Presentation.getSlide(from);
 194         var t = SWS.Presentation.getSlide(to);
 195         if (from < to) {
 196             t.css('left', '100%');
 197             t.css('opacity', '1');
 198             SWS.Templates.slideActivate(t);
 199             f.animate({ 'left': '-100%' }, 250, function () { SWS.Templates.slideDeactivate(f);
 200                                                               f.css('opacity', '0');
 201                                                               t.animate({ 'left': '0%' }, 250);
 202                                                             });
 203         } else {
 204             t.css('left', '-100%');
 205             SWS.Templates.slideActivate(t);
 206             f.animate({ 'left': '100%' }, 250, function () { SWS.Templates.slideDeactivate(f);
 207                                                              f.css('opacity', '0');
 208                                                            });
 209             t.css('opacity', '1');
 210             t.animate({ 'left': '0%' }, 250);
 211         };
 212     };
 213
 214
 215     self.slideChangeVerticalSlide = function (from, to) {
 216         var f = SWS.Presentation.getSlide(from);
 217         var t = SWS.Presentation.getSlide(to);
 218         if (from < to) {
 219             t.css('top', '100%');
 220             SWS.Templates.slideActivate(t);
 221             f.animate({ 'top': '-100%' }, 250, function () { SWS.Templates.slideDeactivate(f); });
 222             t.animate({ 'top': '0%' }, 250);
 223         } else {
 224             t.css('top', '-100%');
 225             SWS.Templates.slideActivate(t);
 226             f.animate({ 'top': '100%' }, 250, function () { SWS.Templates.slideDeactivate(f); });
 227             t.animate({ 'top': '0%' }, 250);
 228         };
 229     };
 230
 231 };
 232
 233 SWS.Fullscreen = new function () {
 234     var self = this;
 235
 236     if (SWS.Utils.isUndefined(document.fullScreen)) {
 237         if (SWS.Utils.isUndefined(document.mozfullScreen)) {
 238             self.status = function () { return document.webkitIsFullScreen; };
 239             self.enter = function(e) {
 240                 e.webkitRequestFullScreen();
 241             };
 242             self.exit = function () {
 243                 document.webkitCancelFullScreen();
 244             };
 245
 246         } else {
 247             self.status = function () { return document.mozfullScreen; };
 248             self.enter = function(e) {
 249                 e.mozRequestFullScreen();
 250             };
 251             self.exit = function () {
 252                 document.mozCancelFullScreen();
 253             };
 254
 255         };
 256     } else {
 257             self.status = function () { return document.fullScreen; };
 258             self.enter = function(e) {
 259                 e.requestFullScreen();
 260             };
 261             self.exit = function () {
 262                 document.cancelFullScreen();
 263             };
 264
 265     };
 266
 267
 268 };
 269
 270 SWS.Presentation = new function () {
 271
 272
 273     var self = this;
 274
 275     //TODO move outside of the Presentation object
 276
 277
 278     var _total_slides;
 279     var _initialized = false;
 280     var _disable_input_events = false;
 281     var _print_mode = false;
 282     var _slide_callbacks = new Array ();
 283     var _total_steps = -1;
 284     var _current_theme = "";
 285
 286     self.getNumSlides = function () { return _total_slides; };
 287
 288     self.getSlide = function(i) {
 289         return $($(".sws-canvas")[i]);
 290     };
 291
 292     self.registerCallback = function (i, f) {
 293         if (_initialized) return;
 294         //jQuery does not seem to work well
 295         //on a partial DOM
 296
 297         var slide_num = $(".sws-slide").length - 1;
 298
 299         SWS.Utils.push2(_slide_callbacks, slide_num,{ 'fn': f, 'frame': i });
 300
 301     };
 302
 303     if (typeof(Storage)!=="undefined"){
 304         self.getCurrentSlide = function () {
 305             //unary + casts to integer
 306             var i = +(sessionStorage.getItem("current_slide"));
 307             if (!(i >= 0 && i < self.getNumSlides())){
 308                 return 0;
 309             } else {
 310                 return i;
 311             };
 312         };
 313
 314         self.setCurrentSlide = function (i) {
 315             sessionStorage.setItem("current_slide", i);
 316         };
 317
 318     } else {
 319         var _current_slide = 0;
 320         self.getCurrentSlide = function () { return _current_slide; };
 321         self.setCurrentSlide = function (i) { _current_slide = i; };
 322
 323     };
 324     self.firstSlide = function () { return 0; };
 325     self.lastSlide = function () { return self.getNumSlides() - 1; };
 326     self.refresh = function () {
 327         /* block upcoming input event until all animations are finished */
 328         _disable_input_events = true;
 329
 330         var canvas = $(".sws-canvas");
 331         var from_slide_num = canvas.index($(".sws-active-slide"));
 332         var to_slide_num = self.getCurrentSlide();
 333         var watch_slide_anim = false;
 334         var to_slide = $(canvas[to_slide_num]);
 335         var from_slide = $(canvas[from_slide_num]);
 336         var slide_change = (from_slide_num != to_slide_num);
 337
 338
 339         var info = to_slide.data("sws-frame-info");
 340         SWS.Config['sws-update-header'](to_slide);
 341         SWS.Config['sws-update-footer'](to_slide);
 342
 343         if (slide_change) {
 344             //Launch a slide transition:
 345             SWS.Config['sws-slide-change'](from_slide_num, to_slide_num);
 346             watch_slide_anim = true;
 347             for (var i = 0; i < info.callbacks.at_slide.length;i++){
 348                 info.callbacks.at_slide[i](to_slide);
 349             };
 350         };
 351
 352
 353         var cur = info.current;
 354         var custom = info.custom;
 355         var real_slide = to_slide.find(".sws-slide");
 356
 357         real_slide.find("*").andSelf().each(function (i){
 358             var frameset = $(this).data("sws-frame-set") || {};
 359             if (frameset[cur])
 360                 SWS.Config['sws-object-activate']($(this));
 361             else
 362                 SWS.Config['sws-object-deactivate']($(this));
 363         });
 364         var callbacks;
 365         if (callbacks = info.callbacks.at_frame[self.getCurrentFrame()]){
 366             for (var k = 0; k < callbacks.length; k++)
 367                 callbacks[k]($(to_slide));
 368         };
 369
 370         var all = $(from_slide).add(to_slide);
 371         all.find("*").addBack().promise().done(function() {
 372             _disable_input_events = false;
 373         });
 374     };
 375
 376     self.nextSlide = function () {
 377         self.setCurrentSlide(Math.min(self.getCurrentSlide()+1,
 378                                       self.lastSlide()));
 379         self.setCurrentFrame(self.firstFrame());
 380     };
 381
 382     self.previousSlide = function () {
 383         self.setCurrentSlide(Math.max(self.getCurrentSlide()-1,
 384                                       self.firstSlide()));
 385         self.setCurrentFrame(self.firstFrame());
 386     };
 387
 388     self.getFrameInfo = function () {
 389
 390         var i = self.getCurrentSlide();
 391         var canvas = $($(".sws-canvas")[i]);
 392         var infos = canvas.data("sws-frame-info");
 393         return infos;
 394     };
 395
 396     self.getTotalSteps = function () {
 397         if (_total_steps >= 0) return _total_steps;
 398         _total_steps = 0;
 399         $(".sws-canvas").each(function(i) {
 400             var canvas = $($(".sws-canvas")[i]);
 401             var infos = canvas.data("sws-frame-info");
 402             _total_steps += infos.last + 1;
 403         });
 404         return _total_steps;
 405     };
 406
 407     self.getCurrentFrame = function () { return self.getFrameInfo().current; };
 408     self.setCurrentFrame = function (i) { self.getFrameInfo().current = i; };
 409     self.firstFrame = function () { return 0; };
 410     self.lastFrame = function () { return self.getFrameInfo().last; };
 411
 412     self.nextFrame = function () {
 413         self.setCurrentFrame(Math.min(self.getCurrentFrame()+1,
 414                                       self.lastFrame()));
 415
 416     };
 417     self.previousFrame = function () {
 418         self.setCurrentFrame(Math.max(self.getCurrentFrame()-1,
 419                                        self.firstFrame()));
 420     };
 421
 422     self.next = function () {
 423         var i = self.getCurrentFrame();
 424         if (i == self.lastFrame()) {
 425             self.nextSlide();
 426             self.setCurrentFrame(self.firstFrame());
 427         } else
 428             self.nextFrame();
 429     };
 430
 431     self.previous = function () {
 432         var i = self.getCurrentFrame();
 433         if (i == self.firstFrame()){
 434             self.previousSlide();
 435             self.setCurrentFrame(self.lastFrame());
 436         }
 437         else
 438             self.previousFrame();
 439     };
 440
 441     self.goToSlide = function (s, f) {
 442         if (SWS.Utils.isUndefined(f))
 443             f = 0;
 444         if (!(s >= self.firstSlide() && s <= self.lastSlide())) return;
 445         self.setCurrentSlide(s);
 446         if (!(f >= self.firstFrame() && f <= self.lastFrame())) f = 0;
 447         self.setCurrentFrame(f);
 448         self.refresh();
 449     };
 450
 451     self.cycleStyle = function() {
 452         var styles = $("head").children('link[rel$="stylesheet"][title]');
 453         var j = styles.index(styles.filter(':not(:disabled)'));
 454         styles[j].disabled = true;
 455         if (++j == styles.length) j = 0;
 456         styles[j].disabled = false;
 457     };
 458
 459
 460     self.printMode = function () {
 461         _print_mode = true;
 462         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>");
 463         $("body").append(progress);
 464
 465         $("html").removeClass("sws-display").addClass("sws-print");
 466         self.goToSlide(0,0);
 467         var steps = self.getTotalSteps();
 468         var total_steps = steps;
 469         var loop;
 470         loop = function () {
 471             if (steps >= 0) {
 472                 //Crazy workaround for chromium
 473                 ($("link.sws-theme[rel='stylesheet']")[0]).disabled = false;
 474                 $(".sws-canvas").find("*").addBack().promise().done(function() {
 475                     var percent = ((total_steps - steps) / total_steps) * 100;
 476                     $("#sws-percent-progress").text(Math.round(percent));
 477                     SWS.Config['sws-slide-change'] = SWS.Templates.slideChange;
 478                     self.refresh();
 479                     $($(".sws-canvas")[self.getCurrentSlide()]).css('opacity', 1 );
 480                     self.next();
 481                     steps--;
 482                     loop();
 483                     })
 484             } else {
 485                 $("#sws-percent-progress").text(100);
 486                 progress.remove();
 487             }
 488         };
 489         loop();
 490
 491     }
 492
 493
 494     var _xstart = 0;
 495     self.inputHandler = function (event) {
 496         if (_disable_input_events || _print_mode) return;
 497         var code = 0;
 498         switch (event.type) {
 499         case 'touchstart':
 500             _xstart = event.changedTouches[0].clientX;
 501             return;
 502         case 'touchend':
 503
 504             var dist = event.changedTouches[0].clientX - _xstart;
 505             if (dist > 20) code = 37
 506             else if (dist < -20) code = 39
 507             else if (!$("#sws-control-panel-canvas").is(":visible")) code = 67;
 508             break;
 509         case 'keydown':
 510             code = event.which;
 511             break;
 512         default:
 513             return;
 514         };
 515         switch (code) {
 516         case 36:/* Home */
 517             self.setCurrentSlide(self.firstSlide());
 518             break;
 519
 520         case 35:/* End */
 521             self.setCurrentSlide(self.lastSlide());
 522             break;
 523         case 32: /* space */
 524         case 34: /* PgDown */
 525         case 39: /* -> */
 526             if (self.getCurrentSlide() == self.lastSlide()
 527                 && self.getCurrentFrame() == self.lastFrame()) return;
 528             self.next();
 529             break;
 530         case 78: /* n */
 531             self.nextSlide();
 532             break;
 533         case 8: /* backspace */
 534         case 33: /* PgUp */
 535         case 37: /* <-   */
 536             self.previous();
 537             break;
 538         case 80: /* p */
 539             self.previousSlide();
 540             break;
 541         case 83: /* s */
 542                 self.cycleStyle();
 543             return;
 544         case 67: /* c */
 545             $("#sws-control-panel-canvas").toggle();
 546
 547         default:
 548             return;
 549         };
 550         self.refresh();
 551 };
 552
 553
 554
 555     function init_canvas(canvas, custom) {
 556         var cur_frame = 0;
 557         var last_frame = canvas.find(".sws-pause").length;
 558         //Add all regular elements to the frame list
 559         var slide = $(canvas.find(".sws-slide")[0]);
 560
 561         var callbacks = { at_slide : new Array(),
 562                           at_frame : new Array() }
 563
 564         if (SWS.Utils.isUndefined(custom)) {
 565             custom = new Array ();
 566         };
 567
 568         for (var i = 0; i < custom.length; i++) {
 569             if (isFinite(custom[i].frame)){
 570                 var num = +(custom[i].frame);
 571                 if (num > last_frame) last_frame = num;
 572                 SWS.Utils.push2(callbacks.at_frame, num, custom[i].fn);
 573             } else if (custom[i].frame == "slide")
 574                 callbacks.at_slide.push(custom[i].fn);
 575             else {
 576                 var frame_set = SWS.Utils.parseFrameSpec(custom[i].frame);
 577                 for(var f in frame_set){
 578                     if (f > last_frame) last_frame = f;
 579                     SWS.Utils.push2(callbacks.at_frame, +(f), custom[i].fn);
 580                 };
 581             }
 582         };
 583
 584         var specials = $([]);
 585
 586         slide.find('*[class*="sws-onframe-"]').each(function(_){
 587             var cls = $(this).attr('class');
 588             var idx = cls.indexOf("sws-onframe-");
 589             if (idx >= 0) {
 590                 var end = cls.indexOf(" ", idx);
 591                 end = (end == -1) ? cls.length : end;
 592                 var spec = cls.substring(idx+12, end);
 593                 var o = SWS.Utils.parseFrameSpec(spec);
 594                 for(var f in o)
 595                     if (f > last_frame) last_frame = f;
 596                 $(this).find("*").andSelf().each(function(_){
 597                     if (!SWS.Utils.isEmpty(o)){
 598                         $(this).data("sws-frame-set", o);
 599                     }
 600                     specials = specials.add($(this));
 601                 });
 602             };
 603         });
 604
 605         slide.find("*").andSelf().not(specials).each(function(i) {
 606             if ($(this).hasClass("sws-pause"))  cur_frame++;
 607             var o = {};
 608             for (var j = cur_frame; j <= last_frame; j++)
 609                 o[ j ] = true;
 610             if (!SWS.Utils.isEmpty(o))
 611                 $(this).data("sws-frame-set", o);
 612         });
 613
 614         canvas.data("sws-frame-info", { current: 0,
 615                                         last: (last_frame - 0), // force cast to integer
 616                                         callbacks: callbacks
 617                                       });
 618
 619     };
 620
 621     /* Forces redrawing the page without reloading */
 622     self.redraw = function (f) {
 623         if (SWS.Utils.isUndefined(f))
 624             $("body").hide().show(400, function () {
 625                 $("body").css("display","block");
 626                 if (!SWS.Utils.isUndefined(f))
 627                     f();
 628             });
 629     };
 630     self.changeAspect = function() {
 631         $("html").removeClass("sws-aspect-4-3")
 632             .removeClass("sws-aspect-16-9")
 633             .removeClass("sws-aspect-16-10")
 634             .addClass($("#sws-aspect-select").val());
 635         self.redraw();
 636     };
 637
 638     self.getCurrentTheme = function () {
 639         var l = $("link.sws-theme[rel='stylesheet']")[0];
 640
 641         if (l) {
 642             return  l.title;
 643         } else
 644             return ""
 645     };
 646
 647     self.changeTheme = function (name) {
 648         var theme_name;
 649         if (typeof name === 'undefined')
 650             theme_name = $("#sws-theme-select").val()
 651         else
 652             theme_name = name;
 653
 654         _current_theme = theme_name;
 655         $("link.sws-theme").each (function (i) {
 656             var e = this;
 657             var title =  e.title;
 658             if (title == theme_name) {
 659                 e.rel = "stylesheet";
 660                 e.disabled = false;
 661                 e.media="all";
 662             } else {
 663                 e.rel = "alternate stylesheet";
 664                 e.disabled = true;
 665                 e.media="all";
 666             };
 667         });
 668         self.redraw();
 669
 670     };
 671
 672     self.openPrint = function () {
 673         window.open ("?mode=print&theme=" + self.getCurrentTheme());
 674     }
 675     var _fullscreen_icon_on = "&#xe746;";
 676     var _fullscreen_icon_off = "&#xe744;";
 677
 678     self.toggleFullScreen = function () {
 679         if (SWS.Fullscreen.status()) {
 680             SWS.Fullscreen.exit();
 681             $("a#sws-control-panel-fullscreen")
 682                 .html(_fullscreen_icon_off);
 683
 684
 685
 686         } else {
 687             SWS.Fullscreen.enter($("body")[0]);
 688             $("a#sws-control-panel-fullscreen")
 689                 .html(_fullscreen_icon_on);
 690         };
 691     };
 692     function _update_ui() {
 693         var nav = $('#sws-control-panel-navigation-bar');
 694         nav.val(SWS.Presentation.getCurrentSlide() + 1);
 695         $('#sws-control-panel-slide-input').val(nav.val());
 696     }
 697     self.navigate = function () {
 698         self.goToSlide($("#sws-control-panel-navigation-bar").val()-1);
 699         _update_ui();
 700     };
 701
 702
 703     self.init = function () {
 704
 705
 706         $("html").addClass("sws-display");
 707         //$(window).resize(self.redraw);
 708
 709
 710
 711         _total_slides = $(".sws-slide").length;
 712
 713         var cur = self.getCurrentSlide();
 714
 715         $(".sws-slide").each(function (i) {
 716
 717             var par = $(this).parent();
 718
 719
 720             $(this).remove();
 721             var canvas = $('<div class="sws-canvas"/>');
 722
 723             if (!($(this).hasClass("sws-option-noheader"))) {
 724                 canvas.append($('<div class="sws-header"/>'));
 725             };
 726             if (!$(this).hasClass("sws-cover")) {
 727                 var title = $($(this).find("h1")[0]);
 728                 var title_div = $('<div class="sws-title" />');
 729                 title_div.append(title);
 730                 canvas.append(title_div);
 731             }
 732             var inner = $('<div class="sws-inner-canvas"/>');
 733             var content = $('<div class="sws-content"/>');
 734             $(this).find('script[type="text/javascript"]').remove();
 735             content.append($(this));
 736             inner.append(content);
 737             canvas.append(inner);
 738
 739             if (!($(this).hasClass("sws-option-nofooter"))) {
 740                 canvas.append($('<div class="sws-footer"/>'));
 741             };
 742
 743             par.append(canvas);
 744
 745             if (i == cur) {
 746                 canvas
 747                     .addClass("sws-active-slide")
 748                     .removeClass("sws-inactive-slide");
 749             } else {
 750                 canvas
 751                     .addClass("sws-inactive-slide")
 752                     .removeClass("sws-active-slide");
 753             };
 754             init_canvas(canvas,_slide_callbacks[i]);
 755
 756         });
 757
 758         // Initialize the control panel
 759         $("body").append($(SWS.Templates.controlPanel));
 760         // Fill the theme switcher
 761         $("link.sws-theme").each (function (i) {
 762             var e = $(this);
 763             var opt = "<option value='";
 764             opt += e.attr("title");
 765             opt += "' ";
 766             if (e.attr("rel") == "stylesheet") {
 767                 opt+= "selected='selected'";
 768             };
 769             opt += ">" + e.attr("title") + "</option>";
 770             $("#sws-theme-select").append($(opt));
 771         });
 772         // Set the fullscreen icon
 773         if (SWS.Fullscreen.status()) {
 774             $("a#sws-control-panel-fullscreen")
 775                 .html(_fullscreen_icon_on);
 776         } else {
 777             $("a#sws-control-panel-fullscreen")
 778                 .html(_fullscreen_icon_off);
 779         };
 780         // Put the navigation range at the correct position
 781         var nav = $('#sws-control-panel-navigation-bar');
 782         nav.attr("min", SWS.Presentation.firstSlide() + 1);
 783         nav.attr("max", SWS.Presentation.lastSlide() + 1);
 784         $('#sws-control-panel-total-slides').text('/' + SWS.Presentation.getNumSlides());
 785         _update_ui();
 786
 787         _slide_callbacks = null; /* avoid a leak */
 788         var passed_theme = SWS.Utils.getParameterByName("theme");
 789         //workaround weird chrome CSS loading bug
 790         var f =
 791             function () {
 792                 if (passed_theme == "")
 793                     self.changeTheme();
 794                 else
 795                     self.changeTheme(passed_theme);
 796                 if (SWS.Utils.getParameterByName("mode") == "print") {
 797                     self.printMode();
 798                 }
 799                 else
 800                     self.refresh();
 801                 $(document).keydown(self.inputHandler);
 802                 document.body.addEventListener('touchstart',self.inputHandler, false);
 803                 document.body.addEventListener('touchend',self.inputHandler, false);
 804
 805                 _initialized = true;
 806             };
 807         setTimeout(f, 100);
 808     };
 809
 810 };