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comparison docs/pycon2010/ui/pycon/slides.js @ 372:bf314710e64b

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can't make theme work
author cat@eee
date Fri, 19 Feb 2010 00:23:18 -0500
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371:e84703583996 372:bf314710e64b
1 // S5 v1.1 slides.js -- released into the Public Domain
2 // Modified for Docutils (http://docutils.sf.net) by David Goodger
3 //
4 // Please see http://www.meyerweb.com/eric/tools/s5/credits.html for
5 // information about all the wonderful and talented contributors to this code!
6
7 var undef;
8 var slideCSS = '';
9 var snum = 0;
10 var smax = 1;
11 var slideIDs = new Array();
12 var incpos = 0;
13 var number = undef;
14 var s5mode = true;
15 var defaultView = 'slideshow';
16 var controlVis = 'visible';
17
18 var isIE = navigator.appName == 'Microsoft Internet Explorer' ? 1 : 0;
19 var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0;
20 var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0;
21
22 function hasClass(object, className) {
23 if (!object.className) return false;
24 return (object.className.search('(^|\\s)' + className + '(\\s|$)') != -1);
25 }
26
27 function hasValue(object, value) {
28 if (!object) return false;
29 return (object.search('(^|\\s)' + value + '(\\s|$)') != -1);
30 }
31
32 function removeClass(object,className) {
33 if (!object) return;
34 object.className = object.className.replace(new RegExp('(^|\\s)'+className+'(\\s|$)'), RegExp.$1+RegExp.$2);
35 }
36
37 function addClass(object,className) {
38 if (!object || hasClass(object, className)) return;
39 if (object.className) {
40 object.className += ' '+className;
41 } else {
42 object.className = className;
43 }
44 }
45
46 function GetElementsWithClassName(elementName,className) {
47 var allElements = document.getElementsByTagName(elementName);
48 var elemColl = new Array();
49 for (var i = 0; i< allElements.length; i++) {
50 if (hasClass(allElements[i], className)) {
51 elemColl[elemColl.length] = allElements[i];
52 }
53 }
54 return elemColl;
55 }
56
57 function isParentOrSelf(element, id) {
58 if (element == null || element.nodeName=='BODY') return false;
59 else if (element.id == id) return true;
60 else return isParentOrSelf(element.parentNode, id);
61 }
62
63 function nodeValue(node) {
64 var result = "";
65 if (node.nodeType == 1) {
66 var children = node.childNodes;
67 for (var i = 0; i < children.length; ++i) {
68 result += nodeValue(children[i]);
69 }
70 }
71 else if (node.nodeType == 3) {
72 result = node.nodeValue;
73 }
74 return(result);
75 }
76
77 function slideLabel() {
78 var slideColl = GetElementsWithClassName('*','slide');
79 var list = document.getElementById('jumplist');
80 smax = slideColl.length;
81 for (var n = 0; n < smax; n++) {
82 var obj = slideColl[n];
83
84 var did = 'slide' + n.toString();
85 if (obj.getAttribute('id')) {
86 slideIDs[n] = obj.getAttribute('id');
87 }
88 else {
89 obj.setAttribute('id',did);
90 slideIDs[n] = did;
91 }
92 if (isOp) continue;
93
94 var otext = '';
95 var menu = obj.firstChild;
96 if (!menu) continue; // to cope with empty slides
97 while (menu && menu.nodeType == 3) {
98 menu = menu.nextSibling;
99 }
100 if (!menu) continue; // to cope with slides with only text nodes
101
102 var menunodes = menu.childNodes;
103 for (var o = 0; o < menunodes.length; o++) {
104 otext += nodeValue(menunodes[o]);
105 }
106 list.options[list.length] = new Option(n + ' : ' + otext, n);
107 }
108 }
109
110 function currentSlide() {
111 var cs;
112 var footer_nodes;
113 var vis = 'visible';
114 if (document.getElementById) {
115 cs = document.getElementById('currentSlide');
116 footer_nodes = document.getElementById('footer').childNodes;
117 } else {
118 cs = document.currentSlide;
119 footer = document.footer.childNodes;
120 }
121 cs.innerHTML = '<span id="csHere">' + snum + '<\/span> ' +
122 '<span id="csSep">\/<\/span> ' +
123 '<span id="csTotal">' + (smax-1) + '<\/span>';
124 if (snum == 0) {
125 vis = 'hidden';
126 }
127 cs.style.visibility = vis;
128 for (var i = 0; i < footer_nodes.length; i++) {
129 if (footer_nodes[i].nodeType == 1) {
130 footer_nodes[i].style.visibility = vis;
131 }
132 }
133 }
134
135 function go(step) {
136 if (document.getElementById('slideProj').disabled || step == 0) return;
137 var jl = document.getElementById('jumplist');
138 var cid = slideIDs[snum];
139 var ce = document.getElementById(cid);
140 if (incrementals[snum].length > 0) {
141 for (var i = 0; i < incrementals[snum].length; i++) {
142 removeClass(incrementals[snum][i], 'current');
143 removeClass(incrementals[snum][i], 'incremental');
144 }
145 }
146 if (step != 'j') {
147 snum += step;
148 lmax = smax - 1;
149 if (snum > lmax) snum = lmax;
150 if (snum < 0) snum = 0;
151 } else
152 snum = parseInt(jl.value);
153 var nid = slideIDs[snum];
154 var ne = document.getElementById(nid);
155 if (!ne) {
156 ne = document.getElementById(slideIDs[0]);
157 snum = 0;
158 }
159 if (step < 0) {incpos = incrementals[snum].length} else {incpos = 0;}
160 if (incrementals[snum].length > 0 && incpos == 0) {
161 for (var i = 0; i < incrementals[snum].length; i++) {
162 if (hasClass(incrementals[snum][i], 'current'))
163 incpos = i + 1;
164 else
165 addClass(incrementals[snum][i], 'incremental');
166 }
167 }
168 if (incrementals[snum].length > 0 && incpos > 0)
169 addClass(incrementals[snum][incpos - 1], 'current');
170 ce.style.visibility = 'hidden';
171 ne.style.visibility = 'visible';
172 jl.selectedIndex = snum;
173 currentSlide();
174 number = 0;
175 }
176
177 function goTo(target) {
178 if (target >= smax || target == snum) return;
179 go(target - snum);
180 }
181
182 function subgo(step) {
183 if (step > 0) {
184 removeClass(incrementals[snum][incpos - 1],'current');
185 removeClass(incrementals[snum][incpos], 'incremental');
186 addClass(incrementals[snum][incpos],'current');
187 incpos++;
188 } else {
189 incpos--;
190 removeClass(incrementals[snum][incpos],'current');
191 addClass(incrementals[snum][incpos], 'incremental');
192 addClass(incrementals[snum][incpos - 1],'current');
193 }
194 }
195
196 function toggle() {
197 var slideColl = GetElementsWithClassName('*','slide');
198 var slides = document.getElementById('slideProj');
199 var outline = document.getElementById('outlineStyle');
200 if (!slides.disabled) {
201 slides.disabled = true;
202 outline.disabled = false;
203 s5mode = false;
204 fontSize('1em');
205 for (var n = 0; n < smax; n++) {
206 var slide = slideColl[n];
207 slide.style.visibility = 'visible';
208 }
209 } else {
210 slides.disabled = false;
211 outline.disabled = true;
212 s5mode = true;
213 fontScale();
214 for (var n = 0; n < smax; n++) {
215 var slide = slideColl[n];
216 slide.style.visibility = 'hidden';
217 }
218 slideColl[snum].style.visibility = 'visible';
219 }
220 }
221
222 function showHide(action) {
223 var obj = GetElementsWithClassName('*','hideme')[0];
224 switch (action) {
225 case 's': obj.style.visibility = 'visible'; break;
226 case 'h': obj.style.visibility = 'hidden'; break;
227 case 'k':
228 if (obj.style.visibility != 'visible') {
229 obj.style.visibility = 'visible';
230 } else {
231 obj.style.visibility = 'hidden';
232 }
233 break;
234 }
235 }
236
237 // 'keys' code adapted from MozPoint (http://mozpoint.mozdev.org/)
238 function keys(key) {
239 if (!key) {
240 key = event;
241 key.which = key.keyCode;
242 }
243 if (key.which == 84) {
244 toggle();
245 return;
246 }
247 if (s5mode) {
248 switch (key.which) {
249 case 10: // return
250 case 13: // enter
251 if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
252 if (key.target && isParentOrSelf(key.target, 'controls')) return;
253 if(number != undef) {
254 goTo(number);
255 break;
256 }
257 case 32: // spacebar
258 case 34: // page down
259 case 39: // rightkey
260 case 40: // downkey
261 if(number != undef) {
262 go(number);
263 } else if (!incrementals[snum] || incpos >= incrementals[snum].length) {
264 go(1);
265 } else {
266 subgo(1);
267 }
268 break;
269 case 33: // page up
270 case 37: // leftkey
271 case 38: // upkey
272 if(number != undef) {
273 go(-1 * number);
274 } else if (!incrementals[snum] || incpos <= 0) {
275 go(-1);
276 } else {
277 subgo(-1);
278 }
279 break;
280 case 36: // home
281 goTo(0);
282 break;
283 case 35: // end
284 goTo(smax-1);
285 break;
286 case 67: // c
287 showHide('k');
288 break;
289 }
290 if (key.which < 48 || key.which > 57) {
291 number = undef;
292 } else {
293 if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
294 if (key.target && isParentOrSelf(key.target, 'controls')) return;
295 number = (((number != undef) ? number : 0) * 10) + (key.which - 48);
296 }
297 }
298 return false;
299 }
300
301 function clicker(e) {
302 number = undef;
303 var target;
304 if (window.event) {
305 target = window.event.srcElement;
306 e = window.event;
307 } else target = e.target;
308 if (target.href != null || hasValue(target.rel, 'external') || isParentOrSelf(target, 'controls') || isParentOrSelf(target,'embed') || isParentOrSelf(target, 'object')) return true;
309 if (!e.which || e.which == 1) {
310 if (!incrementals[snum] || incpos >= incrementals[snum].length) {
311 go(1);
312 } else {
313 subgo(1);
314 }
315 }
316 }
317
318 function findSlide(hash) {
319 var target = document.getElementById(hash);
320 if (target) {
321 for (var i = 0; i < slideIDs.length; i++) {
322 if (target.id == slideIDs[i]) return i;
323 }
324 }
325 return null;
326 }
327
328 function slideJump() {
329 if (window.location.hash == null || window.location.hash == '') {
330 currentSlide();
331 return;
332 }
333 if (window.location.hash == null) return;
334 var dest = null;
335 dest = findSlide(window.location.hash.slice(1));
336 if (dest == null) {
337 dest = 0;
338 }
339 go(dest - snum);
340 }
341
342 function fixLinks() {
343 var thisUri = window.location.href;
344 thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length);
345 var aelements = document.getElementsByTagName('A');
346 for (var i = 0; i < aelements.length; i++) {
347 var a = aelements[i].href;
348 var slideID = a.match('\#.+');
349 if ((slideID) && (slideID[0].slice(0,1) == '#')) {
350 var dest = findSlide(slideID[0].slice(1));
351 if (dest != null) {
352 if (aelements[i].addEventListener) {
353 aelements[i].addEventListener("click", new Function("e",
354 "if (document.getElementById('slideProj').disabled) return;" +
355 "go("+dest+" - snum); " +
356 "if (e.preventDefault) e.preventDefault();"), true);
357 } else if (aelements[i].attachEvent) {
358 aelements[i].attachEvent("onclick", new Function("",
359 "if (document.getElementById('slideProj').disabled) return;" +
360 "go("+dest+" - snum); " +
361 "event.returnValue = false;"));
362 }
363 }
364 }
365 }
366 }
367
368 function externalLinks() {
369 if (!document.getElementsByTagName) return;
370 var anchors = document.getElementsByTagName('a');
371 for (var i=0; i<anchors.length; i++) {
372 var anchor = anchors[i];
373 if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) {
374 anchor.target = '_blank';
375 addClass(anchor,'external');
376 }
377 }
378 }
379
380 function createControls() {
381 var controlsDiv = document.getElementById("controls");
382 if (!controlsDiv) return;
383 var hider = ' onmouseover="showHide(\'s\');" onmouseout="showHide(\'h\');"';
384 var hideDiv, hideList = '';
385 if (controlVis == 'hidden') {
386 hideDiv = hider;
387 } else {
388 hideList = hider;
389 }
390 controlsDiv.innerHTML = '<form action="#" id="controlForm"' + hideDiv + '>' +
391 '<div id="navLinks">' +
392 '<a accesskey="t" id="toggle" href="javascript:toggle();">&#216;<\/a>' +
393 '<a accesskey="z" id="prev" href="javascript:go(-1);">&laquo;<\/a>' +
394 '<a accesskey="x" id="next" href="javascript:go(1);">&raquo;<\/a>' +
395 '<div id="navList"' + hideList + '><select id="jumplist" onchange="go(\'j\');"><\/select><\/div>' +
396 '<\/div><\/form>';
397 if (controlVis == 'hidden') {
398 var hidden = document.getElementById('navLinks');
399 } else {
400 var hidden = document.getElementById('jumplist');
401 }
402 addClass(hidden,'hideme');
403 }
404
405 function fontScale() { // causes layout problems in FireFox that get fixed if browser's Reload is used; same may be true of other Gecko-based browsers
406 if (!s5mode) return false;
407 var vScale = 22; // both yield 32 (after rounding) at 1024x768
408 var hScale = 32; // perhaps should auto-calculate based on theme's declared value?
409 if (window.innerHeight) {
410 var vSize = window.innerHeight;
411 var hSize = window.innerWidth;
412 } else if (document.documentElement.clientHeight) {
413 var vSize = document.documentElement.clientHeight;
414 var hSize = document.documentElement.clientWidth;
415 } else if (document.body.clientHeight) {
416 var vSize = document.body.clientHeight;
417 var hSize = document.body.clientWidth;
418 } else {
419 var vSize = 700; // assuming 1024x768, minus chrome and such
420 var hSize = 1024; // these do not account for kiosk mode or Opera Show
421 }
422 var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale));
423 fontSize(newSize + 'px');
424 if (isGe) { // hack to counter incremental reflow bugs
425 var obj = document.getElementsByTagName('body')[0];
426 obj.style.display = 'none';
427 obj.style.display = 'block';
428 }
429 }
430
431 function fontSize(value) {
432 if (!(s5ss = document.getElementById('s5ss'))) {
433 if (!isIE) {
434 document.getElementsByTagName('head')[0].appendChild(s5ss = document.createElement('style'));
435 s5ss.setAttribute('media','screen, projection');
436 s5ss.setAttribute('id','s5ss');
437 } else {
438 document.createStyleSheet();
439 document.s5ss = document.styleSheets[document.styleSheets.length - 1];
440 }
441 }
442 if (!isIE) {
443 while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild);
444 s5ss.appendChild(document.createTextNode('body {font-size: ' + value + ' !important;}'));
445 } else {
446 document.s5ss.addRule('body','font-size: ' + value + ' !important;');
447 }
448 }
449
450 function notOperaFix() {
451 slideCSS = document.getElementById('slideProj').href;
452 var slides = document.getElementById('slideProj');
453 var outline = document.getElementById('outlineStyle');
454 slides.setAttribute('media','screen');
455 outline.disabled = true;
456 if (isGe) {
457 slides.setAttribute('href','null'); // Gecko fix
458 slides.setAttribute('href',slideCSS); // Gecko fix
459 }
460 if (isIE && document.styleSheets && document.styleSheets[0]) {
461 document.styleSheets[0].addRule('img', 'behavior: url(ui/default/iepngfix.htc)');
462 document.styleSheets[0].addRule('div', 'behavior: url(ui/default/iepngfix.htc)');
463 document.styleSheets[0].addRule('.slide', 'behavior: url(ui/default/iepngfix.htc)');
464 }
465 }
466
467 function getIncrementals(obj) {
468 var incrementals = new Array();
469 if (!obj)
470 return incrementals;
471 var children = obj.childNodes;
472 for (var i = 0; i < children.length; i++) {
473 var child = children[i];
474 if (hasClass(child, 'incremental')) {
475 if (child.nodeName == 'OL' || child.nodeName == 'UL') {
476 removeClass(child, 'incremental');
477 for (var j = 0; j < child.childNodes.length; j++) {
478 if (child.childNodes[j].nodeType == 1) {
479 addClass(child.childNodes[j], 'incremental');
480 }
481 }
482 } else {
483 incrementals[incrementals.length] = child;
484 removeClass(child,'incremental');
485 }
486 }
487 if (hasClass(child, 'show-first')) {
488 if (child.nodeName == 'OL' || child.nodeName == 'UL') {
489 removeClass(child, 'show-first');
490 if (child.childNodes[isGe].nodeType == 1) {
491 removeClass(child.childNodes[isGe], 'incremental');
492 }
493 } else {
494 incrementals[incrementals.length] = child;
495 }
496 }
497 incrementals = incrementals.concat(getIncrementals(child));
498 }
499 return incrementals;
500 }
501
502 function createIncrementals() {
503 var incrementals = new Array();
504 for (var i = 0; i < smax; i++) {
505 incrementals[i] = getIncrementals(document.getElementById(slideIDs[i]));
506 }
507 return incrementals;
508 }
509
510 function defaultCheck() {
511 var allMetas = document.getElementsByTagName('meta');
512 for (var i = 0; i< allMetas.length; i++) {
513 if (allMetas[i].name == 'defaultView') {
514 defaultView = allMetas[i].content;
515 }
516 if (allMetas[i].name == 'controlVis') {
517 controlVis = allMetas[i].content;
518 }
519 }
520 }
521
522 // Key trap fix, new function body for trap()
523 function trap(e) {
524 if (!e) {
525 e = event;
526 e.which = e.keyCode;
527 }
528 try {
529 modifierKey = e.ctrlKey || e.altKey || e.metaKey;
530 }
531 catch(e) {
532 modifierKey = false;
533 }
534 return modifierKey || e.which == 0;
535 }
536
537 function startup() {
538 defaultCheck();
539 if (!isOp) createControls();
540 slideLabel();
541 fixLinks();
542 externalLinks();
543 fontScale();
544 if (!isOp) {
545 notOperaFix();
546 incrementals = createIncrementals();
547 slideJump();
548 if (defaultView == 'outline') {
549 toggle();
550 }
551 document.onkeyup = keys;
552 document.onkeypress = trap;
553 document.onclick = clicker;
554 }
555 }
556
557 window.onload = startup;
558 window.onresize = function(){setTimeout('fontScale()', 50);}