instiki/public/s5/ui/core/slides.js
Jacques Distler 34082fbf94 Theorem Environments
Implement amsthm-like Theorem environments with Maruku.
Support is based on Maruku "div"s with special class-names.
Classes
    num_*
produce numbered environments, and

    un_*

produce un-numbered environments, where * is one of

   theorem     (for Theorem)
   lemma       (for Lemma)
   prop        (for Proposition)
   cor         (for Corollary)
   def         (for Definition)
   example     (for Example)
   remark      (for Remark)
   note        (for Note)

In addition, the class

   proof

produces a Proof environment.

The LaTeX export works as expected, and these also work in the S5 view.

Bumped version number.
2008-10-17 16:26:17 -05:00

858 lines
26 KiB
JavaScript

// S5 v1.2a2 slides.js -- released into the Public Domain
// Many modifications by Jacques Distler to allow operation as real XHTML.
//
// Please see http://www.meyerweb.com/eric/tools/s5/credits.html for information
// about all the wonderful and talented contributors to this code!
var undef;
var slideCSS = '';
var snum = 0;
var smax = 1;
var incpos = 0;
var number = undef;
var s5mode = true;
var defaultView = 'slideshow';
var controlVis = 'visible';
var s5NotesWindow;
var s5NotesWindowLoaded = false;
var previousSlide = 0;
var presentationStart = new Date();
var slideStart = new Date();
var countdown = {
timer: 0,
state: 'pause',
start: new Date(),
end: 0,
remaining: 0
};
var isIE = navigator.appName == 'Microsoft Internet Explorer' && navigator.userAgent.indexOf('Opera') < 1 ? 1 : 0;
var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0;
var isSa = navigator.userAgent.indexOf('Safari') > -1 ? 1 : 0;
var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0;
function hasClass(object, className) {
if (!object.className ||!object.getAttribute('class')) return false;
return (object.getAttribute('class').search('(^|\\s)' + className + '(\\s|$)') != -1);
}
function hasValue(object, value) {
if (!object) return false;
return (object.search('(^|\\s)' + value + '(\\s|$)') != -1);
}
function removeClass(object,className) {
if (!object || !hasClass(object,className)) return;
object.className = object.className.replace(new RegExp('(^|\\s)'+className+'(\\s|$)'), RegExp.$1+RegExp.$2);
}
function addClass(object,className) {
if (!object || hasClass(object, className)) return;
if (object.className) {
object.className += ' '+className;
} else {
object.className = className;
}
}
function GetElementsWithClassName(elementName,className) {
var allElements = document.getElementsByTagName(elementName);
var elemColl = new Array();
for (var i = 0; i< allElements.length; i++) {
if (hasClass(allElements[i], className)) {
elemColl[elemColl.length] = allElements[i];
}
}
return elemColl;
}
function isParentOrSelf(element, id) {
if (element == null || element.nodeName=='body') return false;
else if (element.id == id) return true;
else return isParentOrSelf(element.parentNode, id);
}
function nodeValue(node) {
var result = "";
if (node.nodeType == 1) {
var children = node.childNodes;
for (var i = 0; i < children.length; ++i) {
result += nodeValue(children[i]);
}
}
else if (node.nodeType == 3) {
result = node.nodeValue;
}
return(result);
}
function slideLabel() {
var slideColl = GetElementsWithClassName('*','slide');
var list = document.getElementById('jumplist');
smax = slideColl.length;
for (var n = 0; n < smax; n++) {
var obj = slideColl[n];
var did = 'slide' + n.toString();
obj.setAttribute('id',did);
// if (isOp) continue; // Opera fix (hallvord)
var otext = '';
var menu = obj.firstChild;
if (!menu) continue; // to cope with empty slides
while (menu && menu.nodeType == 3) {
menu = menu.nextSibling;
}
if (!menu) continue; // to cope with slides with only text nodes
var menunodes = menu.childNodes;
for (var o = 0; o < menunodes.length; o++) {
otext += nodeValue(menunodes[o]);
}
if (isSa) {
var option = createElement('option');
option.setAttribute('value', n);
option.appendChild(document.createTextNode(n + ' : ' + otext) );
list.appendChild(option);
} else {
list.options[list.length] = new Option(n + ' : ' + otext, n);
}
}
}
function currentSlide() {
var cs;
if (document.getElementById) {
cs = document.getElementById('currentSlide');
} else {
cs = document.currentSlide;
}
var plink = createElement('a');
plink.id = 'plink';
plink.setAttribute('href', '');
var csHere = createElement('span');
var csSep = createElement('span');
var csTotal = createElement('span');
csHere.id = 'csHere';
csSep.id = 'csSep';
csTotal.id = 'csTotal';
csHere.appendChild(document.createTextNode(this.snum));
csSep.appendChild(document.createTextNode('/'));
csTotal.appendChild(document.createTextNode(this.smax-1));
plink.appendChild(csHere);
plink.appendChild(csSep);
plink.appendChild(csTotal);
cs.removeChild(cs.firstChild);
cs.appendChild(plink);
if (snum == 0) {
cs.style.visibility = 'hidden';
} else {
cs.style.visibility = 'visible';
}
}
function go(step) {
if (document.getElementById('slideProj').disabled || step == 0) return;
var jl = document.getElementById('jumplist');
var cid = 'slide' + snum;
var ce = document.getElementById(cid);
if (incrementals[snum].length > 0) {
for (var i = 0; i < incrementals[snum].length; i++) {
removeClass(incrementals[snum][i], 'current');
removeClass(incrementals[snum][i], 'incremental');
}
}
if (step != 'j') {
snum += step;
lmax = smax - 1;
if (snum > lmax) snum = lmax;
if (snum < 0) snum = 0;
} else
snum = parseInt(jl.value);
var nid = 'slide' + snum;
var ne = document.getElementById(nid);
if (!ne) {
ne = document.getElementById('slide0');
snum = 0;
}
if (step < 0) {incpos = incrementals[snum].length} else {incpos = 0;}
if (incrementals[snum].length > 0 && incpos == 0) {
for (var i = 0; i < incrementals[snum].length; i++) {
if (hasClass(incrementals[snum][i], 'current'))
incpos = i + 1;
else
addClass(incrementals[snum][i], 'incremental');
}
}
if (incrementals[snum].length > 0 && incpos > 0)
addClass(incrementals[snum][incpos - 1], 'current');
if (isOp) { //hallvord
location.hash = nid;
} else {
ce.style.visibility = 'hidden';
ne.style.visibility = 'visible';
} // /hallvord
jl.selectedIndex = snum;
currentSlide();
loadNote();
permaLink();
number = undef;
}
function goTo(target) {
if (target >= smax || target == snum) return;
go(target - snum);
}
function subgo(step) {
if (step > 0) {
removeClass(incrementals[snum][incpos - 1],'current');
removeClass(incrementals[snum][incpos], 'incremental');
addClass(incrementals[snum][incpos],'current');
incpos++;
} else {
incpos--;
removeClass(incrementals[snum][incpos],'current');
addClass(incrementals[snum][incpos], 'incremental');
addClass(incrementals[snum][incpos - 1],'current');
}
loadNote();
}
function toggle() {
var slideColl = GetElementsWithClassName('*','slide');
var slides = document.getElementById('slideProj');
var outline = document.getElementById('outlineStyle');
if (!slides.disabled) {
slides.disabled = true;
outline.disabled = false;
s5mode = false;
fontSize('1em');
for (var n = 0; n < smax; n++) {
var slide = slideColl[n];
slide.style.visibility = 'visible';
}
} else {
slides.disabled = false;
outline.disabled = true;
s5mode = true;
fontScale();
for (var n = 0; n < smax; n++) {
var slide = slideColl[n];
slide.style.visibility = 'hidden';
}
slideColl[snum].style.visibility = 'visible';
}
}
function showHide(action) {
var obj = GetElementsWithClassName('*','hideme')[0];
switch (action) {
case 's': obj.style.visibility = 'visible'; break;
case 'h': obj.style.visibility = 'hidden'; break;
case 'k':
if (obj.style.visibility != 'visible') {
obj.style.visibility = 'visible';
} else {
obj.style.visibility = 'hidden';
}
break;
}
}
// 'keys' code adapted from MozPoint (http://mozpoint.mozdev.org/)
function keys(key) {
if (!key) {
key = event;
key.which = key.keyCode;
}
if (key.which == 84) {
toggle();
return;
}
if (s5mode) {
switch (key.which) {
case 10: // return
case 13: // enter
if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
if (key.target && isParentOrSelf(key.target, 'controls')) return;
if(number != undef) {
goTo(number);
break;
}
case 32: // spacebar
case 34: // page down
case 39: // rightkey
case 40: // downkey
if(number != undef) {
go(number);
} else if (!incrementals[snum] || incpos >= incrementals[snum].length) {
go(1);
} else {
subgo(1);
}
break;
case 33: // page up
case 37: // leftkey
case 38: // upkey
if(number != undef) {
go(-1 * number);
} else if (!incrementals[snum] || incpos <= 0) {
go(-1);
} else {
subgo(-1);
}
break;
case 36: // home
goTo(0);
break;
case 35: // end
goTo(smax-1);
break;
case 67: // c
showHide('k');
break;
case 78: // n
createNotesWindow();
break;
}
if (key.which < 48 || key.which > 57) {
number = undef;
} else {
if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
if (key.target && isParentOrSelf(key.target, 'controls')) return;
number = (((number != undef) ? number : 0) * 10) + (key.which - 48);
}
}
return false;
}
function clicker(e) {
number = undef;
var target;
if (window.event) {
target = window.event.srcElement;
e = window.event;
} else target = e.target;
if (target.href != null || hasValue(target.rel, 'external') || isParentOrSelf(target, 'controls') || isParentOrSelf(target,'embed') || isParentOrSelf(target,'object')) return true;
if (!e.which || e.which == 1) {
if (!incrementals[snum] || incpos >= incrementals[snum].length) {
go(1);
} else {
subgo(1);
}
}
}
function findSlide(hash) {
var target = null;
var slides = GetElementsWithClassName('*','slide');
for (var i = 0; i < slides.length; i++) {
var targetSlide = slides[i];
if ( (targetSlide.name && targetSlide.name == hash)
|| (targetSlide.id && targetSlide.id == hash) ) {
target = targetSlide;
break;
}
}
while(target != null && target.nodeName != 'body') {
if (hasClass(target, 'slide')) {
return parseInt(target.id.slice(5));
}
target = target.parentNode;
}
return null;
}
function slideJump() {
if (window.location.hash == null) return;
var sregex = /^#slide(\d+)$/;
var matches = sregex.exec(window.location.hash);
var dest = null;
if (matches != null) {
dest = parseInt(matches[1]);
} else {
dest = findSlide(window.location.hash.slice(1));
}
if (dest != null)
go(dest - snum);
}
function fixLinks() {
var thisUri = window.location.href;
thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length);
var aelements = document.getElementsByTagName('a');
for (var i = 0; i < aelements.length; i++) {
var a = aelements[i].href;
var slideID = a.match('\#slide[0-9]{1,2}');
if ((slideID) && (slideID[0].slice(0,1) == '#')) {
var dest = findSlide(slideID[0].slice(1));
if (dest != null) {
if (aelements[i].addEventListener) {
aelements[i].addEventListener("click", new Function("e",
"if (document.getElementById('slideProj').disabled) return;" +
"go("+dest+" - snum); " +
"if (e.preventDefault) e.preventDefault();"), true);
} else if (aelements[i].attachEvent) {
aelements[i].attachEvent("onclick", new Function("",
"if (document.getElementById('slideProj').disabled) return;" +
"go("+dest+" - snum); " +
"event.returnValue = false;"));
}
}
}
}
}
function externalLinks() {
if (!document.getElementsByTagName) return;
var anchors = document.getElementsByTagName('a');
for (var i=0; i<anchors.length; i++) {
var anchor = anchors[i];
if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) {
anchor.target = '_blank';
addClass(anchor,'external');
}
}
}
function permaLink() {
document.getElementById('plink').href = window.location.pathname + '#slide' + snum;
}
function createControls() {
var controlsDiv = document.getElementById("controls");
if (!controlsDiv) return;
var controlForm = createElement('form');
controlForm.id = 'controlForm';
controlForm.setAttribute('action', '#');
if (controlVis == 'hidden') {
controlForm.setAttribute('onmouseover', 'showHide(\'s\');');
controlForm.setAttribute('onmouseout', 'showHide(\'h\');');
}
var navLinks = createElement('div');
navLinks.id = 'navLinks';
var showNotes = createElement('a');
showNotes.id = 'show-notes';
showNotes.setAttribute('accesskey', 'n');
showNotes.setAttribute('href', 'javascript:createNotesWindow();');
showNotes.setAttribute('title', 'Show Notes');
showNotes.appendChild(document.createTextNode('\u2261'));
var toggle = createElement('a');
toggle.id = 'toggle';
toggle.setAttribute('accesskey', 't');
toggle.setAttribute('href', 'javascript:toggle();');
toggle.appendChild(document.createTextNode('\u00D8'));
var prev = createElement('a');
prev.id = 'prev';
prev.setAttribute('accesskey', 'z');
prev.setAttribute('href', 'javascript:go(-1);');
prev.appendChild(document.createTextNode('\u00AB'));
var next = createElement('a');
next.id = 'next';
next.setAttribute('accesskey', 'x');
next.setAttribute('href', 'javascript:go(1);');
next.appendChild(document.createTextNode('\u00BB'));
var navList = createElement('div');
navList.id = 'navList';
if (controlVis != 'hidden') {
navList.setAttribute('onmouseover', 'showHide(\'s\');');
navList.setAttribute('onmouseout', 'showHide(\'h\');');
}
var jumplist = createElement('select');
jumplist.id = 'jumplist';
jumplist.setAttribute('onchange', 'go(\'j\');');
navList.appendChild(jumplist);
navLinks.appendChild(showNotes);
navLinks.appendChild(toggle);
navLinks.appendChild(prev);
navLinks.appendChild(next);
navLinks.appendChild(navList);
controlForm.appendChild(navLinks);
controlsDiv.appendChild(controlForm);
if (controlVis == 'hidden') {
var hidden = document.getElementById('navLinks');
} else {
var hidden = document.getElementById('jumplist');
}
addClass(hidden,'hideme');
}
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
if (!s5mode) return false;
var vScale = 48; // both yield 16 (the usual browser default) at 1024x768
var hScale = 64; // perhaps should auto-calculate based on theme's declared value?
if (window.innerHeight) {
var vSize = window.innerHeight;
var hSize = window.innerWidth;
} else if (document.documentElement.clientHeight) {
var vSize = document.documentElement.clientHeight;
var hSize = document.documentElement.clientWidth;
} else if (document.body.clientHeight) {
var vSize = document.body.clientHeight;
var hSize = document.body.clientWidth;
} else {
var vSize = 700; // assuming 1024x768, minus chrome and such
var hSize = 1024; // these do not account for kiosk mode or Opera Show
}
var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale));
fontSize(newSize + 'px');
if (isGe) { // hack to counter incremental reflow bugs
var obj = document.getElementsByTagName('body')[0];
obj.style.display = 'none';
obj.style.display = 'block';
}
}
function fontSize(value) {
if (!(s5ss = document.getElementById('s5ss'))) {
if (!document.createStyleSheet) {
document.getElementsByTagName('head')[0].appendChild(s5ss = createElement('style'));
s5ss.setAttribute('media','screen, projection');
s5ss.setAttribute('id','s5ss');
} else {
document.createStyleSheet();
document.s5ss = document.styleSheets[document.styleSheets.length - 1];
}
}
if (!(document.s5ss && document.s5ss.addRule)) {
while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild);
s5ss.appendChild(document.createTextNode('html {font-size: ' + value + ' !important;}'));
} else {
document.s5ss.addRule('html','font-size: ' + value + ' !important;');
}
}
function notOperaFix() {
slideCSS = document.getElementById('slideProj').href;
var slides = document.getElementById('slideProj');
var outline = document.getElementById('outlineStyle');
slides.setAttribute('media','screen');
outline.disabled = true;
if (isGe) {
slides.setAttribute('href','null'); // Gecko fix
slides.setAttribute('href',slideCSS); // Gecko fix
}
if (isIE && document.styleSheets && document.styleSheets[0]) {
document.styleSheets[0].addRule('img', 'behavior: url(/s5/ui/default/iepngfix.htc)');
document.styleSheets[0].addRule('div', 'behavior: url(/s5/ui/default/iepngfix.htc)');
document.styleSheets[0].addRule('.slide', 'behavior: url(/s5/ui/default/iepngfix.htc)');
}
}
function getIncrementals(obj) {
var incrementals = new Array();
if (!obj)
return incrementals;
var children = obj.childNodes;
for (var i = 0; i < children.length; i++) {
var child = children[i];
if (hasClass(child, 'incremental')) {
if (child.nodeName == 'ol' || child.nodeName == 'ul' || child.nodeName == 'dl') {
removeClass(child, 'incremental');
for (var j = 0; j < child.childNodes.length; j++) {
if (child.childNodes[j].nodeType == 1) {
addClass(child.childNodes[j], 'incremental');
}
}
} else {
incrementals[incrementals.length] = child;
removeClass(child,'incremental');
}
}
if (hasClass(child, 'show-first')) {
if (child.nodeName == 'ol' || child.nodeName == 'ul' || child.nodeName == 'dl') {
removeClass(child, 'show-first');
if (child.childNodes[isGe].nodeType == 1) {
removeClass(child.childNodes[isGe], 'incremental');
}
} else {
incrementals[incrementals.length] = child;
}
}
incrementals = incrementals.concat(getIncrementals(child));
}
return incrementals;
}
function createIncrementals() {
var incrementals = new Array();
for (var i = 0; i < smax; i++) {
incrementals[i] = getIncrementals(document.getElementById('slide'+i));
}
return incrementals;
}
function defaultCheck() {
var allMetas = document.getElementsByTagName('meta');
for (var i = 0; i< allMetas.length; i++) {
if (allMetas[i].name == 'defaultView') {
defaultView = allMetas[i].content;
}
if (allMetas[i].name == 'controlVis') {
controlVis = allMetas[i].content;
}
}
}
// Key trap fix, new function body for trap()
function trap(e) {
if (!e) {
e = event;
e.which = e.keyCode;
}
try {
modifierKey = e.ctrlKey || e.altKey || e.metaKey;
}
catch(e) {
modifierKey = false;
}
return modifierKey || e.which == 0;
}
function noteLabel() { // Gives notes id's to match parent slides
var notes = GetElementsWithClassName('div','notes');
for (var i = 0; i < notes.length; i++) {
var note = notes[i];
var id = 'note' + note.parentNode.id.substring(5);
note.setAttribute('id',id);
}
resetElapsedSlide();
resetRemainingTime();
window.setInterval('updateElaspedTime()', 1000);
}
function createNotesWindow() { // creates a window for our notes
if (!s5NotesWindow || s5NotesWindow.closed) { // Create the window if it doesn't exist
s5NotesWindowLoaded = false;
// Note: Safari has a tendency to ignore window options preferring to default to the settings of the parent window, grr.
if (isIE) {
s5NotesWindow = window.open('/s5/ui/s5-notes.html', 's5NotesWindow', 'top=0,left=0,resizable=yes,scrollbars=auto');
} else {
s5NotesWindow = window.open('/s5/ui/s5-notes.xhtml', 's5NotesWindow', 'top=0,left=0,resizable=yes,scrollbars=auto');
}
}
if (s5NotesWindowLoaded) { // Load the current note if the Note HTML has loaded
loadNote();
} else { // Keep trying...
window.setTimeout('createNotesWindow()', 50);
}
}
function loadNote() {
// Loads a note into the note window
var notes = nextNotes = '<em class="disclaimer">There are no notes for this slide.</em>';
if (document.getElementById('note' + snum)) {
notes = document.getElementById('note' + snum).innerHTML;
}
if (document.getElementById('note' + (snum + 1))) {
nextNotes = document.getElementById('note' + (snum + 1)).innerHTML;
}
var jl = document.getElementById('jumplist');
var slideTitle = jl.options[jl.selectedIndex].text.replace(/^\d+\s+:\s+/, '') + ((jl.selectedIndex) ? ' (' + jl.selectedIndex + '/' + (smax - 1) + ')' : '');
if (incrementals[snum].length > 0) {
// alert('howdy');
slideTitle += ' <small>[' + incpos + '/' + incrementals[snum].length + ']</small>';
}
if (jl.selectedIndex < smax - 1) {
var nextTitle = jl.options[jl.selectedIndex + 1].text.replace(/^\d+\s+:\s+/, '') + ((jl.selectedIndex + 1) ? ' (' + (jl.selectedIndex + 1) + '/' + (smax - 1) + ')' : '');
} else {
var nextTitle = '[end of slide show]';
}
if (s5NotesWindow && !s5NotesWindow.closed && s5NotesWindow.document) {
s5NotesWindow.document.getElementById('slide').innerHTML = slideTitle;
s5NotesWindow.document.getElementById('notes').innerHTML = notes;
s5NotesWindow.document.getElementById('next').innerHTML = nextTitle;
s5NotesWindow.document.getElementById('nextnotes').innerHTML = nextNotes;
}
resetElapsedSlide();
}
function minimizeTimer(id) {
var obj = s5NotesWindow.document.getElementById(id);
if (hasClass(obj,'collapsed')) {
removeClass(obj,'collapsed');
} else {
addClass(obj,'collapsed');
}
}
function resetElapsedTime() {
presentationStart = new Date();
slideStart = new Date();
updateElaspedTime();
}
function resetElapsedSlide() {
if (snum != previousSlide) {
slideStart = new Date();
previousSlide = snum;
updateElaspedTime();
}
}
function updateElaspedTime() {
if (!s5NotesWindowLoaded || !s5NotesWindow || s5NotesWindow.closed) return;
var now = new Date();
var ep = s5NotesWindow.document.getElementById('elapsed-presentation');
var es = s5NotesWindow.document.getElementById('elapsed-slide');
ep.removeChild(ep.firstChild);
ep.appendChild(document.createTextNode(formatTime(now.valueOf() - presentationStart.valueOf())));
es.removeChild(es.firstChild);
es.appendChild(document.createTextNode(formatTime(now.valueOf() - slideStart.valueOf())));
}
function resetRemainingTime() {
if (!s5NotesWindowLoaded || !s5NotesWindow || s5NotesWindow.closed) return;
var startField = s5NotesWindow.document.getElementById('startFrom');
startFrom = readTime(startField.value);
countdown.remaining = startFrom * 60000; // convert to msecs
countdown.start = new Date().valueOf();
countdown.end = countdown.start + countdown.remaining;
var tl = s5NotesWindow.document.getElementById('timeLeft');
var timeLeft = formatTime(countdown.remaining);
tl.removeChild(tl.firstChild);
tl.appendChild(document.createTextNode(timeLeft));
}
function updateRemainingTime() {
if (!s5NotesWindowLoaded || !s5NotesWindow || s5NotesWindow.closed) return;
var tl = s5NotesWindow.document.getElementById('timeLeft');
var now = new Date();
if (countdown.state == 'run') {
countdown.remaining = countdown.end - now;
}
tl.style.color = '';
tl.style.backgroundColor = '';
if (countdown.remaining >= 0) {
var timeLeft = formatTime(countdown.remaining);
removeClass(tl,'overtime');
if (countdown.remaining < 300000) {
tl.style.color = 'rgb(' + (255-Math.round(countdown.remaining/2000)) + ',0,0)';
tl.style.backgroundColor = 'rgb(255,255,' + (Math.round(countdown.remaining/2000)) + ')';
}
} else {
var timeLeft = '-' + formatTime(-countdown.remaining);
addClass(tl,'overtime');
}
tl.removeChild(tl.firstChild);
tl.appendChild(document.createTextNode(timeLeft));
}
function toggleRemainingTime() {
if (countdown.state == 'pause') countdown.state = 'run'; else countdown.state = 'pause';
if (countdown.state == 'pause') {
window.clearInterval(countdown.timer);
}
if (countdown.state == 'run') {
countdown.start = new Date().valueOf();
countdown.end = countdown.start + countdown.remaining;
countdown.timer = window.setInterval('updateRemainingTime()', 1000);
}
}
function alterRemainingTime(amt) {
var change = amt * 60000; // convert to msecs
countdown.end += change;
countdown.remaining += change;
updateRemainingTime();
}
function formatTime(msecs) {
var time = new Date(msecs);
var hrs = time.getUTCHours() + ((time.getUTCDate() -1) * 24); // I doubt anyone will spend more than 24 hours on a presentation or single slide but just in case...
hrs = (hrs < 10) ? '0'+hrs : hrs;
if (hrs == 'NaN' || isNaN(hrs)) hrs = '--';
var min = time.getUTCMinutes();
min = (min < 10) ? '0'+min : min;
if (min == 'NaN' || isNaN(min)) min = '--';
var sec = time.getUTCSeconds();
sec = (sec < 10) ? '0'+sec : sec;
if (sec == 'NaN' || isNaN(sec)) sec = '--';
return hrs + ':' + min + ':' + sec;
}
function readTime(val) {
var sregex = /:/;
var matches = sregex.exec(val);
if (matches == null) {
return val;
} else {
var times = val.split(':');
var hours = parseInt(times[0]);
var mins = parseInt(times[1]);
var total = (hours * 60) + mins;
return total;
}
}
function createElement(element) {
if (typeof document.createElementNS != 'undefined') {
return document.createElementNS('http://www.w3.org/1999/xhtml', element);
} else {
return document.createElement(element);
}
}
function windowChange() {
fontScale();
}
function fixRunIn() {
// work around lack of gecko support for display:run-in
var re = /^num_|\s+num_|^un_|\s+un_|proof/;
$$('div > h6').each(function(element) {
if(re.test($(element.parentNode).className)) {
var new_span = new Element('span').update(element.textContent);
new_span.addClassName('theorem_label');
var next_el = element.next().firstChild;
next_el.parentNode.insertBefore(new_span, next_el);
var period = new Element('span').update('. ');
next_el.parentNode.insertBefore(period, next_el);
element.remove();
}
});
// add tombstone to proof, since gecko doesn't support :last-child properly
$$('div.proof').each(function(element) {
var l = element.childElements().length -1;
var span = new Element('span').update('\u00a0\u00a0\u25ae');
element.childElements()[l].insert(span);
})
}
function startup() {
defaultCheck();
createControls(); // hallvord
slideLabel();
incrementals = createIncrementals();
noteLabel(); // [SI:060104] must follow slideLabel()
loadNote();
fixLinks();
externalLinks();
fontScale();
fixRunIn();
if (!isOp) notOperaFix();
slideJump();
if (defaultView == 'outline') {
toggle();
}
document.onkeyup = keys;
document.onkeypress = trap;
document.onclick = clicker;
}
window.onload = startup;
window.onresize = function(){setTimeout('windowChange()',5);}