1// S5 v1.1 slides.js -- released into the Public Domain 2// 3// Please see http://www.meyerweb.com/eric/tools/s5/credits.html for information 4// about all the wonderful and talented contributors to this code! 5 6var undef; 7var slideCSS = ''; 8var snum = 0; 9var smax = 1; 10var incpos = 0; 11var number = undef; 12var s5mode = true; 13var defaultView = 'slideshow'; 14var controlVis = 'visible'; 15 16var isIE = navigator.appName == 'Microsoft Internet Explorer' ? 1 : 0; 17var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0; 18var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0; 19 20function hasClass(object, className) { 21 if (!object.className) return false; 22 return (object.className.search('(^|\\s)' + className + '(\\s|$)') != -1); 23} 24 25function hasValue(object, value) { 26 if (!object) return false; 27 return (object.search('(^|\\s)' + value + '(\\s|$)') != -1); 28} 29 30function removeClass(object,className) { 31 if (!object) return; 32 object.className = object.className.replace(new RegExp('(^|\\s)'+className+'(\\s|$)'), RegExp.$1+RegExp.$2); 33} 34 35function addClass(object,className) { 36 if (!object || hasClass(object, className)) return; 37 if (object.className) { 38 object.className += ' '+className; 39 } else { 40 object.className = className; 41 } 42} 43 44function GetElementsWithClassName(elementName,className) { 45 var allElements = document.getElementsByTagName(elementName); 46 var elemColl = new Array(); 47 for (var i = 0; i< allElements.length; i++) { 48 if (hasClass(allElements[i], className)) { 49 elemColl[elemColl.length] = allElements[i]; 50 } 51 } 52 return elemColl; 53} 54 55function isParentOrSelf(element, id) { 56 if (element == null || element.nodeName=='BODY') return false; 57 else if (element.id == id) return true; 58 else return isParentOrSelf(element.parentNode, id); 59} 60 61function nodeValue(node) { 62 var result = ""; 63 if (node.nodeType == 1) { 64 var children = node.childNodes; 65 for (var i = 0; i < children.length; ++i) { 66 result += nodeValue(children[i]); 67 } 68 } 69 else if (node.nodeType == 3) { 70 result = node.nodeValue; 71 } 72 return(result); 73} 74 75function slideLabel() { 76 var slideColl = GetElementsWithClassName('*','slide'); 77 var list = document.getElementById('jumplist'); 78 smax = slideColl.length; 79 for (var n = 0; n < smax; n++) { 80 var obj = slideColl[n]; 81 82 var did = 'slide' + n.toString(); 83 obj.setAttribute('id',did); 84 if (isOp) continue; 85 86 var otext = ''; 87 var menu = obj.firstChild; 88 if (!menu) continue; // to cope with empty slides 89 while (menu && menu.nodeType == 3) { 90 menu = menu.nextSibling; 91 } 92 if (!menu) continue; // to cope with slides with only text nodes 93 94 var menunodes = menu.childNodes; 95 for (var o = 0; o < menunodes.length; o++) { 96 otext += nodeValue(menunodes[o]); 97 } 98 list.options[list.length] = new Option(n + ' : ' + otext, n); 99 } 100} 101 102function currentSlide() { 103 var cs; 104 if (document.getElementById) { 105 cs = document.getElementById('currentSlide'); 106 } else { 107 cs = document.currentSlide; 108 } 109 cs.innerHTML = '<span id="csHere">' + snum + '<\/span> ' + 110 '<span id="csSep">\/<\/span> ' + 111 '<span id="csTotal">' + (smax-1) + '<\/span>'; 112 if (snum == 0) { 113 cs.style.visibility = 'hidden'; 114 } else { 115 cs.style.visibility = 'visible'; 116 } 117 window.location.replace( window.location.search + '#slide' + snum); 118} 119 120function go(step) { 121 if (document.getElementById('slideProj').disabled || step == 0) return; 122 var jl = document.getElementById('jumplist'); 123 var cid = 'slide' + snum; 124 var ce = document.getElementById(cid); 125 if (incrementals[snum].length > 0) { 126 for (var i = 0; i < incrementals[snum].length; i++) { 127 removeClass(incrementals[snum][i], 'current'); 128 removeClass(incrementals[snum][i], 'incremental'); 129 } 130 } 131 if (step != 'j') { 132 snum += step; 133 lmax = smax - 1; 134 if (snum > lmax) snum = lmax; 135 if (snum < 0) snum = 0; 136 } else 137 snum = parseInt(jl.value); 138 var nid = 'slide' + snum; 139 var ne = document.getElementById(nid); 140 if (!ne) { 141 ne = document.getElementById('slide0'); 142 snum = 0; 143 } 144 if (step < 0) {incpos = incrementals[snum].length} else {incpos = 0;} 145 if (incrementals[snum].length > 0 && incpos == 0) { 146 for (var i = 0; i < incrementals[snum].length; i++) { 147 if (hasClass(incrementals[snum][i], 'current')) 148 incpos = i + 1; 149 else 150 addClass(incrementals[snum][i], 'incremental'); 151 } 152 } 153 if (incrementals[snum].length > 0 && incpos > 0) 154 addClass(incrementals[snum][incpos - 1], 'current'); 155 ce.style.visibility = 'hidden'; 156 ne.style.visibility = 'visible'; 157 jl.selectedIndex = snum; 158 currentSlide(); 159 number = 0; 160} 161 162function goTo(target) { 163 if (target >= smax || target == snum) return; 164 go(target - snum); 165} 166 167function subgo(step) { 168 if (step > 0) { 169 removeClass(incrementals[snum][incpos - 1],'current'); 170 removeClass(incrementals[snum][incpos], 'incremental'); 171 addClass(incrementals[snum][incpos],'current'); 172 incpos++; 173 } else { 174 incpos--; 175 removeClass(incrementals[snum][incpos],'current'); 176 addClass(incrementals[snum][incpos], 'incremental'); 177 addClass(incrementals[snum][incpos - 1],'current'); 178 } 179} 180 181function toggle() { 182 var slideColl = GetElementsWithClassName('*','slide'); 183 var slides = document.getElementById('slideProj'); 184 var outline = document.getElementById('outlineStyle'); 185 if (!slides.disabled) { 186 slides.disabled = true; 187 outline.disabled = false; 188 s5mode = false; 189 fontSize('1em'); 190 for (var n = 0; n < smax; n++) { 191 var slide = slideColl[n]; 192 slide.style.visibility = 'visible'; 193 } 194 } else { 195 slides.disabled = false; 196 outline.disabled = true; 197 s5mode = true; 198 fontScale(); 199 for (var n = 0; n < smax; n++) { 200 var slide = slideColl[n]; 201 slide.style.visibility = 'hidden'; 202 } 203 slideColl[snum].style.visibility = 'visible'; 204 } 205} 206 207function showHide(action) { 208 var obj = GetElementsWithClassName('*','hideme')[0]; 209 switch (action) { 210 case 's': obj.style.visibility = 'visible'; break; 211 case 'h': obj.style.visibility = 'hidden'; break; 212 case 'k': 213 if (obj.style.visibility != 'visible') { 214 obj.style.visibility = 'visible'; 215 } else { 216 obj.style.visibility = 'hidden'; 217 } 218 break; 219 } 220} 221 222// 'keys' code adapted from MozPoint (http://mozpoint.mozdev.org/) 223function keys(key) { 224 if (!key) { 225 key = event; 226 key.which = key.keyCode; 227 } 228 if (key.which == 84) { 229 toggle(); 230 return; 231 } 232 if (s5mode) { 233 switch (key.which) { 234 case 10: // return 235 case 13: // enter 236 if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return; 237 if (key.target && isParentOrSelf(key.target, 'controls')) return; 238 if(number != undef) { 239 goTo(number); 240 break; 241 } 242 case 32: // spacebar 243 case 34: // page down 244 case 39: // rightkey 245 case 40: // downkey 246 if(number != undef) { 247 go(number); 248 } else if (!incrementals[snum] || incpos >= incrementals[snum].length) { 249 go(1); 250 } else { 251 subgo(1); 252 } 253 break; 254 case 33: // page up 255 case 37: // leftkey 256 case 38: // upkey 257 if(number != undef) { 258 go(-1 * number); 259 } else if (!incrementals[snum] || incpos <= 0) { 260 go(-1); 261 } else { 262 subgo(-1); 263 } 264 break; 265 case 36: // home 266 goTo(0); 267 break; 268 case 35: // end 269 goTo(smax-1); 270 break; 271 case 67: // c 272 showHide('k'); 273 break; 274 } 275 if (key.which < 48 || key.which > 57) { 276 number = undef; 277 } else { 278 if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return; 279 if (key.target && isParentOrSelf(key.target, 'controls')) return; 280 number = (((number != undef) ? number : 0) * 10) + (key.which - 48); 281 } 282 } 283 return false; 284} 285 286function clicker(e) { 287 number = undef; 288 var target; 289 if (window.event) { 290 target = window.event.srcElement; 291 e = window.event; 292 } else target = e.target; 293 if (target.getAttribute('href') != null || hasValue(target.rel, 'external') || isParentOrSelf(target, 'controls') || isParentOrSelf(target,'embed') || isParentOrSelf(target,'object')) return true; 294 if (!e.which || e.which == 1) { 295 if (!incrementals[snum] || incpos >= incrementals[snum].length) { 296 go(1); 297 } else { 298 subgo(1); 299 } 300 } 301} 302 303function findSlide(hash) { 304 var target = null; 305 var slides = GetElementsWithClassName('*','slide'); 306 for (var i = 0; i < slides.length; i++) { 307 var targetSlide = slides[i]; 308 if ( (targetSlide.name && targetSlide.name == hash) 309 || (targetSlide.id && targetSlide.id == hash) ) { 310 target = targetSlide; 311 break; 312 } 313 } 314 while(target != null && target.nodeName != 'BODY') { 315 if (hasClass(target, 'slide')) { 316 return parseInt(target.id.slice(5)); 317 } 318 target = target.parentNode; 319 } 320 return null; 321} 322 323function slideJump() { 324 if (window.location.hash == null) return; 325 var sregex = /^#slide(\d+)$/; 326 var matches = sregex.exec(window.location.hash); 327 var dest = null; 328 if (matches != null) { 329 dest = parseInt(matches[1]); 330 } else { 331 dest = findSlide(window.location.hash.slice(1)); 332 } 333 if (dest != null) 334 go(dest - snum); 335} 336 337function fixLinks() { 338 var thisUri = window.location.href; 339 thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length); 340 var aelements = document.getElementsByTagName('A'); 341 for (var i = 0; i < aelements.length; i++) { 342 var a = aelements[i].href; 343 var slideID = a.match('\#slide[0-9]{1,2}'); 344 if ((slideID) && (slideID[0].slice(0,1) == '#')) { 345 var dest = findSlide(slideID[0].slice(1)); 346 if (dest != null) { 347 if (aelements[i].addEventListener) { 348 aelements[i].addEventListener("click", new Function("e", 349 "if (document.getElementById('slideProj').disabled) return;" + 350 "go("+dest+" - snum); " + 351 "if (e.preventDefault) e.preventDefault();"), true); 352 } else if (aelements[i].attachEvent) { 353 aelements[i].attachEvent("onclick", new Function("", 354 "if (document.getElementById('slideProj').disabled) return;" + 355 "go("+dest+" - snum); " + 356 "event.returnValue = false;")); 357 } 358 } 359 } 360 } 361} 362 363function externalLinks() { 364 if (!document.getElementsByTagName) return; 365 var anchors = document.getElementsByTagName('a'); 366 for (var i=0; i<anchors.length; i++) { 367 var anchor = anchors[i]; 368 if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) { 369 anchor.target = '_blank'; 370 addClass(anchor,'external'); 371 } 372 } 373} 374 375function createControls() { 376 var controlsDiv = document.getElementById("controls"); 377 if (!controlsDiv) return; 378 var hider = ' onmouseover="showHide(\'s\');" onmouseout="showHide(\'h\');"'; 379 var hideDiv, hideList = ''; 380 if (controlVis == 'hidden') { 381 hideDiv = hider; 382 } else { 383 hideList = hider; 384 } 385 controlsDiv.innerHTML = '<form action="#" id="controlForm"' + hideDiv + '>' + 386 '<div id="navLinks">' + 387 '<a accesskey="t" id="toggle" href="javascript:toggle();">Ø<\/a>' + 388 '<a accesskey="z" id="prev" href="javascript:go(-1);">«<\/a>' + 389 '<a accesskey="x" id="next" href="javascript:go(1);">»<\/a>' + 390 '<div id="navList"' + hideList + '><select id="jumplist" onchange="go(\'j\');"><\/select><\/div>' + 391 '<\/div><\/form>'; 392 if (controlVis == 'hidden') { 393 var hidden = document.getElementById('navLinks'); 394 } else { 395 var hidden = document.getElementById('jumplist'); 396 } 397 addClass(hidden,'hideme'); 398} 399 400function fontScale() { // causes layout problems in FireFox that get fixed if browser's Reload is used; same may be true of other Gecko-based browsers 401 if (!s5mode) return false; 402 var vScale = 22; // both yield 32 (after rounding) at 1024x768 403 var hScale = 32; // perhaps should auto-calculate based on theme's declared value? 404 if (window.innerHeight) { 405 var vSize = window.innerHeight; 406 var hSize = window.innerWidth; 407 } else if (document.documentElement.clientHeight) { 408 var vSize = document.documentElement.clientHeight; 409 var hSize = document.documentElement.clientWidth; 410 } else if (document.body.clientHeight) { 411 var vSize = document.body.clientHeight; 412 var hSize = document.body.clientWidth; 413 } else { 414 var vSize = 700; // assuming 1024x768, minus chrome and such 415 var hSize = 1024; // these do not account for kiosk mode or Opera Show 416 } 417 var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale)); 418 fontSize(newSize + 'px'); 419 if (isGe) { // hack to counter incremental reflow bugs 420 var obj = document.getElementsByTagName('body')[0]; 421 obj.style.display = 'none'; 422 obj.style.display = 'block'; 423 } 424} 425 426function fontSize(value) { 427 if (!(s5ss = document.getElementById('s5ss'))) { 428 if (!isIE) { 429 document.getElementsByTagName('head')[0].appendChild(s5ss = document.createElement('style')); 430 s5ss.setAttribute('media','screen, projection'); 431 s5ss.setAttribute('id','s5ss'); 432 } else { 433 document.createStyleSheet(); 434 document.s5ss = document.styleSheets[document.styleSheets.length - 1]; 435 } 436 } 437 if (!isIE) { 438 while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild); 439 s5ss.appendChild(document.createTextNode('body {font-size: ' + value + ' !important;}')); 440 } else { 441 document.s5ss.addRule('body','font-size: ' + value + ' !important;'); 442 } 443} 444 445function notOperaFix() { 446 slideCSS = document.getElementById('slideProj').href; 447 var slides = document.getElementById('slideProj'); 448 var outline = document.getElementById('outlineStyle'); 449 slides.setAttribute('media','screen'); 450 outline.disabled = true; 451 if (isGe) { 452 slides.setAttribute('href','null'); // Gecko fix 453 slides.setAttribute('href',slideCSS); // Gecko fix 454 } 455 if (isIE && document.styleSheets && document.styleSheets[0]) { 456 document.styleSheets[0].addRule('img', 'behavior: url(ui/default/iepngfix.htc)'); 457 document.styleSheets[0].addRule('div', 'behavior: url(ui/default/iepngfix.htc)'); 458 document.styleSheets[0].addRule('.slide', 'behavior: url(ui/default/iepngfix.htc)'); 459 } 460} 461 462function getIncrementals(obj) { 463 var incrementals = new Array(); 464 if (!obj) 465 return incrementals; 466 var children = obj.childNodes; 467 for (var i = 0; i < children.length; i++) { 468 var child = children[i]; 469 if (hasClass(child, 'incremental')) { 470 if (child.nodeName == 'OL' || child.nodeName == 'UL') { 471 removeClass(child, 'incremental'); 472 for (var j = 0; j < child.childNodes.length; j++) { 473 if (child.childNodes[j].nodeType == 1) { 474 addClass(child.childNodes[j], 'incremental'); 475 } 476 } 477 } else { 478 incrementals[incrementals.length] = child; 479 removeClass(child,'incremental'); 480 } 481 } 482 if (hasClass(child, 'show-first')) { 483 if (child.nodeName == 'OL' || child.nodeName == 'UL') { 484 removeClass(child, 'show-first'); 485 if (child.childNodes[isGe].nodeType == 1) { 486 removeClass(child.childNodes[isGe], 'incremental'); 487 } 488 } else { 489 incrementals[incrementals.length] = child; 490 } 491 } 492 incrementals = incrementals.concat(getIncrementals(child)); 493 } 494 return incrementals; 495} 496 497function createIncrementals() { 498 var incrementals = new Array(); 499 for (var i = 0; i < smax; i++) { 500 incrementals[i] = getIncrementals(document.getElementById('slide'+i)); 501 } 502 return incrementals; 503} 504 505function defaultCheck() { 506 var allMetas = document.getElementsByTagName('meta'); 507 for (var i = 0; i< allMetas.length; i++) { 508 if (allMetas[i].name == 'defaultView') { 509 defaultView = allMetas[i].content; 510 } 511 if (allMetas[i].name == 'controlVis') { 512 controlVis = allMetas[i].content; 513 } 514 } 515} 516 517// Key trap fix, new function body for trap() 518function trap(e) { 519 if (!e) { 520 e = event; 521 e.which = e.keyCode; 522 } 523 try { 524 modifierKey = e.ctrlKey || e.altKey || e.metaKey; 525 } 526 catch(e) { 527 modifierKey = false; 528 } 529 return modifierKey || e.which == 0; 530} 531 532function startup() { 533 defaultCheck(); 534 if (!isOp) createControls(); 535 slideLabel(); 536 fixLinks(); 537 externalLinks(); 538 fontScale(); 539 if (!isOp) { 540 notOperaFix(); 541 incrementals = createIncrementals(); 542 slideJump(); 543 if (defaultView == 'outline') { 544 toggle(); 545 } 546 document.onkeyup = keys; 547 document.onkeypress = trap; 548 document.onclick = clicker; 549 } 550} 551 552window.onload = startup; 553window.onresize = function(){setTimeout('fontScale()', 50);} 554