554 lines
16 KiB
JavaScript
554 lines
16 KiB
JavaScript
// S5 v1.1 slides.js -- released into the Public Domain
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//
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// Please see http://www.meyerweb.com/eric/tools/s5/credits.html for information
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// about all the wonderful and talented contributors to this code!
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var undef;
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var slideCSS = '';
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var snum = 0;
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var smax = 1;
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var incpos = 0;
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var number = undef;
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var s5mode = true;
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var defaultView = 'slideshow';
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var controlVis = 'visible';
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var isIE = navigator.appName == 'Microsoft Internet Explorer' && navigator.userAgent.indexOf('Opera') < 1 ? 1 : 0;
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var isOp = navigator.userAgent.indexOf('Opera') > -1 ? 1 : 0;
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var isGe = navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('Safari') < 1 ? 1 : 0;
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function hasClass(object, className) {
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if (!object.className) return false;
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return (object.className.search('(^|\\s)' + className + '(\\s|$)') != -1);
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}
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function hasValue(object, value) {
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if (!object) return false;
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return (object.search('(^|\\s)' + value + '(\\s|$)') != -1);
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}
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function removeClass(object,className) {
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if (!object) return;
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object.className = object.className.replace(new RegExp('(^|\\s)'+className+'(\\s|$)'), RegExp.$1+RegExp.$2);
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}
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function addClass(object,className) {
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if (!object || hasClass(object, className)) return;
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if (object.className) {
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object.className += ' '+className;
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} else {
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object.className = className;
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}
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}
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function GetElementsWithClassName(elementName,className) {
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var allElements = document.getElementsByTagName(elementName);
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var elemColl = new Array();
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for (var i = 0; i< allElements.length; i++) {
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if (hasClass(allElements[i], className)) {
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elemColl[elemColl.length] = allElements[i];
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}
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}
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return elemColl;
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}
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function isParentOrSelf(element, id) {
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if (element == null || element.nodeName=='BODY') return false;
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else if (element.id == id) return true;
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else return isParentOrSelf(element.parentNode, id);
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}
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function nodeValue(node) {
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var result = "";
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if (node.nodeType == 1) {
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var children = node.childNodes;
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for (var i = 0; i < children.length; ++i) {
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result += nodeValue(children[i]);
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}
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}
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else if (node.nodeType == 3) {
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result = node.nodeValue;
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}
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return(result);
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}
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function slideLabel() {
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var slideColl = GetElementsWithClassName('*','slide');
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var list = document.getElementById('jumplist');
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smax = slideColl.length;
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for (var n = 0; n < smax; n++) {
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var obj = slideColl[n];
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var did = 'slide' + n.toString();
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obj.setAttribute('id',did);
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if (isOp) continue;
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var otext = '';
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var menu = obj.firstChild;
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if (!menu) continue; // to cope with empty slides
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while (menu && menu.nodeType == 3) {
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menu = menu.nextSibling;
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}
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if (!menu) continue; // to cope with slides with only text nodes
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var menunodes = menu.childNodes;
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for (var o = 0; o < menunodes.length; o++) {
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otext += nodeValue(menunodes[o]);
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}
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list.options[list.length] = new Option(n + ': ' + otext, n);
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}
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}
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function currentSlide() {
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var cs;
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if (document.getElementById) {
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cs = document.getElementById('currentSlide');
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} else {
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cs = document.currentSlide;
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}
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cs.innerHTML = '<span id="csHere">' + snum + '<\/span> ' +
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'<span id="csSep">\/<\/span> ' +
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'<span id="csTotal">' + (smax-1) + '<\/span>';
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// if (snum == 0) {
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// cs.style.visibility = 'hidden';
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// } else {
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// cs.style.visibility = 'visible';
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// }
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}
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function go(step) {
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if (document.getElementById('slideProj').disabled || step == 0) return;
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var jl = document.getElementById('jumplist');
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var cid = 'slide' + snum;
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var ce = document.getElementById(cid);
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if (incrementals[snum].length > 0) {
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for (var i = 0; i < incrementals[snum].length; i++) {
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removeClass(incrementals[snum][i], 'current');
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removeClass(incrementals[snum][i], 'incremental');
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}
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}
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if (step != 'j') {
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snum += step;
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lmax = smax - 1;
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if (snum > lmax) snum = lmax;
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if (snum < 0) snum = 0;
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} else
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snum = parseInt(jl.value);
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var nid = 'slide' + snum;
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var ne = document.getElementById(nid);
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if (!ne) {
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ne = document.getElementById('slide0');
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snum = 0;
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}
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if (step < 0) {incpos = incrementals[snum].length} else {incpos = 0;}
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if (incrementals[snum].length > 0 && incpos == 0) {
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for (var i = 0; i < incrementals[snum].length; i++) {
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if (hasClass(incrementals[snum][i], 'current'))
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incpos = i + 1;
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else
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addClass(incrementals[snum][i], 'incremental');
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}
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}
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if (incrementals[snum].length > 0 && incpos > 0)
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addClass(incrementals[snum][incpos - 1], 'current');
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ce.style.visibility = 'hidden';
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ne.style.visibility = 'visible';
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jl.selectedIndex = snum;
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currentSlide();
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number = 0;
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}
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function goTo(target) {
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if (target >= smax || target == snum) return;
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go(target - snum);
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}
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function subgo(step) {
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if (step > 0) {
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removeClass(incrementals[snum][incpos - 1],'current');
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removeClass(incrementals[snum][incpos], 'incremental');
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addClass(incrementals[snum][incpos],'current');
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incpos++;
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} else {
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incpos--;
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removeClass(incrementals[snum][incpos],'current');
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addClass(incrementals[snum][incpos], 'incremental');
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addClass(incrementals[snum][incpos - 1],'current');
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}
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}
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function toggle() {
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var slideColl = GetElementsWithClassName('*','slide');
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var slides = document.getElementById('slideProj');
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var outline = document.getElementById('outlineStyle');
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if (!slides.disabled) {
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slides.disabled = true;
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outline.disabled = false;
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s5mode = false;
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fontSize('1em');
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for (var n = 0; n < smax; n++) {
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var slide = slideColl[n];
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slide.style.visibility = 'visible';
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}
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} else {
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slides.disabled = false;
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outline.disabled = true;
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s5mode = true;
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fontScale();
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for (var n = 0; n < smax; n++) {
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var slide = slideColl[n];
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slide.style.visibility = 'hidden';
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}
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slideColl[snum].style.visibility = 'visible';
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}
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}
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function showHide(action) {
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var obj = GetElementsWithClassName('*','hideme')[0];
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switch (action) {
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case 's': obj.style.visibility = 'visible'; break;
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case 'h': obj.style.visibility = 'hidden'; break;
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case 'k':
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if (obj.style.visibility != 'visible') {
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obj.style.visibility = 'visible';
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} else {
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obj.style.visibility = 'hidden';
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}
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break;
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}
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}
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// 'keys' code adapted from MozPoint (http://mozpoint.mozdev.org/)
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function keys(key) {
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if (!key) {
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key = event;
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key.which = key.keyCode;
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}
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if (key.which == 84) {
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toggle();
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return;
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}
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if (s5mode) {
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switch (key.which) {
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case 10: // return
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case 13: // enter
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if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
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if (key.target && isParentOrSelf(key.target, 'controls')) return;
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if(number != undef) {
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goTo(number);
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break;
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}
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case 32: // spacebar
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case 34: // page down
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case 39: // rightkey
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case 40: // downkey
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if(number != undef) {
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go(number);
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} else if (!incrementals[snum] || incpos >= incrementals[snum].length) {
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go(1);
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} else {
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subgo(1);
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}
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break;
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case 33: // page up
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case 37: // leftkey
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case 38: // upkey
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if(number != undef) {
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go(-1 * number);
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} else if (!incrementals[snum] || incpos <= 0) {
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go(-1);
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} else {
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subgo(-1);
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}
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break;
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case 36: // home
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goTo(0);
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break;
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case 35: // end
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goTo(smax-1);
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break;
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case 67: // c
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showHide('k');
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break;
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}
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if (key.which < 48 || key.which > 57) {
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number = undef;
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} else {
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if (window.event && isParentOrSelf(window.event.srcElement, 'controls')) return;
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if (key.target && isParentOrSelf(key.target, 'controls')) return;
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number = (((number != undef) ? number : 0) * 10) + (key.which - 48);
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}
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}
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return false;
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}
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function clicker(e) {
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number = undef;
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var target;
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if (window.event) {
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target = window.event.srcElement;
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e = window.event;
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} else target = e.target;
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if (target.getAttribute('href') != null || target.getAttribute("onclick") != null || target.getAttribute("onchange") != null || hasValue(target.rel, 'external') || isParentOrSelf(target, 'controls') || isParentOrSelf(target,'embed') || isParentOrSelf(target,'object') || isParentOrSelf(target, "jumplist")) return true;
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if (!e.which || e.which == 1) {
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if (!incrementals[snum] || incpos >= incrementals[snum].length) {
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go(1);
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} else {
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subgo(1);
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}
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}
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}
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function findSlide(hash) {
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var target = null;
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var slides = GetElementsWithClassName('*','slide');
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for (var i = 0; i < slides.length; i++) {
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var targetSlide = slides[i];
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if ( (targetSlide.name && targetSlide.name == hash)
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|| (targetSlide.id && targetSlide.id == hash) ) {
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target = targetSlide;
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break;
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}
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}
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while(target != null && target.nodeName != 'BODY') {
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if (hasClass(target, 'slide')) {
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return parseInt(target.id.slice(5));
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}
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target = target.parentNode;
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}
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return null;
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}
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function slideJump() {
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if (window.location.hash == null) return;
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var sregex = /^#slide(\d+)$/;
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var matches = sregex.exec(window.location.hash);
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var dest = null;
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if (matches != null) {
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dest = parseInt(matches[1]);
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} else {
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dest = findSlide(window.location.hash.slice(1));
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}
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if (dest != null)
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go(dest - snum);
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}
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function fixLinks() {
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var thisUri = window.location.href;
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thisUri = thisUri.slice(0, thisUri.length - window.location.hash.length);
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var aelements = document.getElementsByTagName('A');
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for (var i = 0; i < aelements.length; i++) {
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var a = aelements[i].href;
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var slideID = a.match('\#slide[0-9]{1,2}');
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if ((slideID) && (slideID[0].slice(0,1) == '#')) {
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var dest = findSlide(slideID[0].slice(1));
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if (dest != null) {
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if (aelements[i].addEventListener) {
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aelements[i].addEventListener("click", new Function("e",
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"if (document.getElementById('slideProj').disabled) return;" +
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"go("+dest+" - snum); " +
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"if (e.preventDefault) e.preventDefault();"), true);
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} else if (aelements[i].attachEvent) {
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aelements[i].attachEvent("onclick", new Function("",
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"if (document.getElementById('slideProj').disabled) return;" +
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"go("+dest+" - snum); " +
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"event.returnValue = false;"));
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}
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}
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}
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}
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}
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function externalLinks() {
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if (!document.getElementsByTagName) return;
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var anchors = document.getElementsByTagName('a');
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for (var i=0; i<anchors.length; i++) {
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var anchor = anchors[i];
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if (anchor.getAttribute('href') && hasValue(anchor.rel, 'external')) {
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anchor.target = '_blank';
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addClass(anchor,'external');
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}
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}
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}
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function createControls() {
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var controlsDiv = document.getElementById("controls");
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if (!controlsDiv) return;
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var hider = ' onmouseover="showHide(\'s\');" onmouseout="showHide(\'h\');"';
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var hideDiv = '', hideList = '';
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if (controlVis == 'hidden') {
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hideDiv = hider;
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} else {
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hideList = hider;
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}
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controlsDiv.innerHTML = '<form action="#" id="controlForm"' + hideDiv + '>' +
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'<div id="navLinks">' +
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'<a accesskey="t" id="toggle" href="javascript:toggle();">Ø<\/a>' +
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'<a accesskey="z" id="prev" href="javascript:go(-1);">«<\/a>' +
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'<a accesskey="x" id="next" href="javascript:go(1);">»<\/a>' +
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'<div id="navList"' + hideList + '><select id="jumplistx" onchange="go(\'j\');"><\/select><\/div>' +
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'<\/div><\/form>';
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if (controlVis == 'hidden') {
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var hidden = document.getElementById('navLinks');
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} else {
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var hidden = document.getElementById('jumplist');
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}
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addClass(hidden,'hideme');
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}
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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
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if (!s5mode) return false;
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var vScale = 22; // both yield 32 (after rounding) at 1024x768
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var hScale = 32; // perhaps should auto-calculate based on theme's declared value?
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if (window.innerHeight) {
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var vSize = window.innerHeight;
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var hSize = window.innerWidth;
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} else if (document.documentElement.clientHeight) {
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var vSize = document.documentElement.clientHeight;
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var hSize = document.documentElement.clientWidth;
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} else if (document.body.clientHeight) {
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var vSize = document.body.clientHeight;
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var hSize = document.body.clientWidth;
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} else {
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var vSize = 700; // assuming 1024x768, minus chrome and such
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var hSize = 1024; // these do not account for kiosk mode or Opera Show
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}
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var newSize = Math.min(Math.round(vSize/vScale),Math.round(hSize/hScale));
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fontSize(newSize + 'px');
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if (isGe) { // hack to counter incremental reflow bugs
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var obj = document.getElementsByTagName('body')[0];
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obj.style.display = 'none';
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obj.style.display = 'block';
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}
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}
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function fontSize(value) {
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// if (!(s5ss = document.getElementById('s5ss'))) {
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// if (!isIE) {
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// document.getElementsByTagName('head')[0].appendChild(s5ss = document.createElement('style'));
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// s5ss.setAttribute('media','screen, projection');
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// s5ss.setAttribute('id','s5ss');
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// } else {
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// document.createStyleSheet();
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// document.s5ss = document.styleSheets[document.styleSheets.length - 1];
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// }
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// }
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// if (!isIE) {
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// while (s5ss.lastChild) s5ss.removeChild(s5ss.lastChild);
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// s5ss.appendChild(document.createTextNode('body {font-size: ' + value + ' !important;}'));
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// } else {
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// document.s5ss.addRule('body','font-size: ' + value + ' !important;');
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// }
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}
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function notOperaFix() {
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slideCSS = document.getElementById('slideProj').href;
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var slides = document.getElementById('slideProj');
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var outline = document.getElementById('outlineStyle');
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slides.setAttribute('media','screen');
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outline.disabled = true;
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if (isGe) {
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slides.setAttribute('href','null'); // Gecko fix
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slides.setAttribute('href',slideCSS); // Gecko fix
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}
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if (isIE && document.styleSheets && document.styleSheets[0]) {
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document.styleSheets[0].addRule('img', 'behavior: url(ui/default/iepngfix.htc)');
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document.styleSheets[0].addRule('div', 'behavior: url(ui/default/iepngfix.htc)');
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document.styleSheets[0].addRule('.slide', 'behavior: url(ui/default/iepngfix.htc)');
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}
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}
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function getIncrementals(obj) {
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var incrementals = new Array();
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if (!obj)
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return incrementals;
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var children = obj.childNodes;
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for (var i = 0; i < children.length; i++) {
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var child = children[i];
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if (hasClass(child, 'incremental')) {
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if (child.nodeName == 'OL' || child.nodeName == 'UL') {
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removeClass(child, 'incremental');
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for (var j = 0; j < child.childNodes.length; j++) {
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if (child.childNodes[j].nodeType == 1) {
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addClass(child.childNodes[j], 'incremental');
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}
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}
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} else {
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incrementals[incrementals.length] = child;
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removeClass(child,'incremental');
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}
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}
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if (hasClass(child, 'show-first')) {
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if (child.nodeName == 'OL' || child.nodeName == 'UL') {
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removeClass(child, 'show-first');
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if (child.childNodes[isGe].nodeType == 1) {
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removeClass(child.childNodes[isGe], 'incremental');
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}
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} else {
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incrementals[incrementals.length] = child;
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}
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}
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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 startup() {
|
|
defaultCheck();
|
|
createControls();
|
|
slideLabel();
|
|
fixLinks();
|
|
externalLinks();
|
|
// fontScale();
|
|
if (!isOp) {
|
|
notOperaFix();
|
|
incrementals = createIncrementals();
|
|
slideJump();
|
|
if (defaultView == 'outline') {
|
|
toggle();
|
|
}
|
|
document.onkeyup = keys;
|
|
document.onkeypress = trap;
|
|
document.onclick = clicker;
|
|
}
|
|
currentSlide();
|
|
}
|
|
|
|
window.onload = startup;
|
|
// window.onresize = function(){setTimeout('fontScale()', 50);}
|