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