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6c2e0fe1f9
move talk-20091030 down. add talk given at Stanford 2010/01/12. add doc/go-logo-white.png. R=r CC=golang-dev https://golang.org/cl/186132
2773 lines
62 KiB
JavaScript
2773 lines
62 KiB
JavaScript
/* http://www.w3.org/Talks/Tools/Slidy/slidy.js
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Copyright (c) 2005 W3C (MIT, ERCIM, Keio), All Rights Reserved.
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W3C liability, trademark, document use and software licensing
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rules apply, see:
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http://www.w3.org/Consortium/Legal/copyright-documents
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http://www.w3.org/Consortium/Legal/copyright-software
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*/
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var ns_pos = (typeof window.pageYOffset!='undefined');
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var khtml = ((navigator.userAgent).indexOf("KHTML") >= 0 ? true : false);
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var opera = ((navigator.userAgent).indexOf("Opera") >= 0 ? true : false);
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var ie7 = (!ns_pos && navigator.userAgent.indexOf("MSIE 7") != -1);
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window.onload = startup; // equivalent to onload on body element
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// IE only event handlers to ensure all slides are printed
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// I don't yet know how to emulate these for other browsers
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window.onbeforeprint = beforePrint;
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window.onafterprint = afterPrint;
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// hack to hide slides while loading
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setTimeout(hideAll, 50);
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function hideAll()
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{
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if (document.body)
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document.body.style.visibility = "hidden";
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else
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setTimeout(hideAll, 50);
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}
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var slidenum = 0; // integer slide count: 0, 1, 2, ...
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var slides; // set to array of slide div's
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var slideNumElement; // element containing slide number
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var notes; // set to array of handout div's
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var backgrounds; // set to array of background div's
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var toolbar; // element containing toolbar
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var title; // document title
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var lastShown = null; // last incrementally shown item
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var eos = null; // span element for end of slide indicator
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var toc = null; // table of contents
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var outline = null; // outline element with the focus
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var selectedTextLen; // length of drag selection on document
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var viewAll = 0; // 1 to view all slides + handouts
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var wantToolbar = 1; // 0 if toolbar isn't wanted
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var mouseClickEnabled = true; // enables left click for next slide
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var scrollhack = 0; // IE work around for position: fixed
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var helpAnchor; // used for keyboard focus hack in showToolbar()
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var helpPage = "http://www.w3.org/Talks/Tools/Slidy/help.html";
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var helpText = "Navigate with mouse click, space bar, Cursor Left/Right, " +
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"or Pg Up and Pg Dn. Use S and B to change font size.";
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var sizeIndex = 0;
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var sizeAdjustment = 0;
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var sizes = new Array("10pt", "12pt", "14pt", "16pt", "18pt", "20pt",
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"22pt", "24pt", "26pt", "28pt", "30pt", "32pt");
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var okayForIncremental = incrementalElementList();
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// needed for efficient resizing
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var lastWidth = 0;
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var lastHeight = 0;
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// Needed for cross browser support for relative width/height on
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// object elements. The work around is to save width/height attributes
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// and then to recompute absolute width/height dimensions on resizing
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var objects;
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// updated to language specified by html file
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var lang = "en";
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//var localize = {};
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// for each language there is an associative array
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var strings_es = {
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"slide":"pág.",
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"help?":"Ayuda",
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"contents?":"Índice",
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"table of contents":"tabla de contenidos",
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"Table of Contents":"Tabla de Contenidos",
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"restart presentation":"Reiniciar presentación",
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"restart?":"Inicio"
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};
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strings_es[helpText] =
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"Utilice el ratón, barra espaciadora, teclas Izda/Dhca, " +
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"o Re pág y Av pág. Use S y B para cambiar el tamaño de fuente.";
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var strings_nl = {
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"slide":"pagina",
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"help?":"Help?",
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"contents?":"Inhoud?",
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"table of contents":"inhoudsopgave",
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"Table of Contents":"Inhoudsopgave",
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"restart presentation":"herstart presentatie",
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"restart?":"Herstart?"
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};
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strings_nl[helpText] =
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"Navigeer d.m.v. het muis, spatiebar, Links/Rechts toetsen, " +
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"of PgUp en PgDn. Gebruik S en B om de karaktergrootte te veranderen.";
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var strings_de = {
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"slide":"Seite",
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"help?":"Hilfe",
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"contents?":"Übersicht",
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"table of contents":"Inhaltsverzeichnis",
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"Table of Contents":"Inhaltsverzeichnis",
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"restart presentation":"Präsentation neu starten",
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"restart?":"Neustart"
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};
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strings_de[helpText] =
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"Benutzen Sie die Maus, Leerschlag, die Cursortasten links/rechts" +
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"oder Page up/Page Down zum Wechseln der Seiten und S und B für die Schriftgrösse.";
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var strings_pl = {
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"slide":"slajd",
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"help?":"pomoc?",
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"contents?":"spis treści?",
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"table of contents":"spis treści",
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"Table of Contents":"Spis Treści",
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"restart presentation":"Restartuj prezentację",
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"restart?":"restart?"
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};
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strings_pl[helpText] =
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"Zmieniaj slajdy klikając myszą, naciskając spację, strzałki lewo/prawo" +
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"lub PgUp / PgDn. Użyj klawiszy S i B, aby zmienić rozmiar czczionki.";
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var strings_fr = {
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"slide":"page",
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"help?":"Aide",
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"contents?":"Index",
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"table of contents":"table des matières",
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"Table of Contents":"Table des matières",
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"restart presentation":"Recommencer l'exposé",
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"restart?":"Début"
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};
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strings_fr[helpText] =
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"Naviguez avec la souris, la barre d'espace, les flèches" +
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"gauche/droite ou les touches Pg Up, Pg Dn. Utilisez " +
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"les touches S et B pour modifier la taille de la police.";
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var strings_hu = {
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"slide":"oldal",
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"help?":"segítség",
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"contents?":"tartalom",
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"table of contents":"tartalomjegyzék",
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"Table of Contents":"Tartalomjegyzék",
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"restart presentation":"bemutató újraindítása",
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"restart?":"újraindítás"
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};
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strings_hu[helpText] =
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"Az oldalak közti lépkedéshez kattintson az egérrel, vagy használja a szóköz, a bal, vagy a jobb nyíl, " +
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"illetve a Page Down, Page Up billentyűket. Az S és a B billentyűkkel változtathatja a szöveg méretét.";
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var strings_it = {
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"slide":"pag.",
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"help?":"Aiuto",
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"contents?":"Indice",
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"table of contents":"indice",
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"Table of Contents":"Indice",
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"restart presentation":"Ricominciare la presentazione",
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"restart?":"Inizio"
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};
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strings_it[helpText] =
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"Navigare con mouse, barra spazio, frecce sinistra/destra o " +
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"PgUp e PgDn. Usare S e B per cambiare la dimensione dei caratteri.";
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var strings_el = {
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"slide":"σελίδα",
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"help?":"βοήθεια;",
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"contents?":"περιεχόμενα;",
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"table of contents":"πίνακας περιεχομένων",
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"Table of Contents":"Πίνακας Περιεχομένων",
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"restart presentation":"επανεκκίνηση παρουσίασης",
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"restart?":"επανεκκίνηση;"
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};
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strings_el[helpText] =
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"Πλοηγηθείτε με το κλίκ του ποντικιού, το space, τα βέλη αριστερά/δεξιά, " +
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"ή Page Up και Page Down. Χρησιμοποιήστε τα πλήκτρα S και B για να αλλάξετε " +
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"το μέγεθος της γραμματοσειράς.";
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var strings_ja = {
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"slide":"スライド",
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"help?":"ヘルプ",
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"contents?":"目次",
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"table of contents":"目次を表示",
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"Table of Contents":"目次",
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"restart presentation":"最初から再生",
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"restart?":"最初から"
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};
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strings_ja[helpText] =
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"マウス左クリック ・ スペース ・ 左右キー " +
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"または Page Up ・ Page Downで操作， S ・ Bでフォントサイズ変更";
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// each such language array is declared in the localize array
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// used indirectly as in help.innerHTML = "help".localize();
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var localize = {
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"es":strings_es,
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"nl":strings_nl,
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"de":strings_de,
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"pl":strings_pl,
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"fr":strings_fr,
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"hu":strings_hu,
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"it":strings_it,
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"el":strings_el,
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"jp":strings_ja
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};
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/* general initialization */
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function startup()
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{
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// find human language from html element
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// for use in localizing strings
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lang = document.body.parentNode.getAttribute("lang");
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if (!lang)
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lang = document.body.parentNode.getAttribute("xml:lang");
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if (!lang)
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lang = "en";
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document.body.style.visibility = "visible";
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title = document.title;
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toolbar = addToolbar();
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wrapImplicitSlides();
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slides = collectSlides();
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notes = collectNotes();
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objects = document.body.getElementsByTagName("object");
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backgrounds = collectBackgrounds();
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patchAnchors();
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slidenum = findSlideNumber(location.href);
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window.offscreenbuffering = true;
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sizeAdjustment = findSizeAdjust();
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hideImageToolbar(); // suppress IE image toolbar popup
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initOutliner(); // activate fold/unfold support
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if (slides.length > 0)
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{
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var slide = slides[slidenum];
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slide.style.position = "absolute";
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if (slidenum > 0)
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{
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setVisibilityAllIncremental("visible");
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lastShown = previousIncrementalItem(null);
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setEosStatus(true);
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}
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else
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{
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lastShown = null;
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setVisibilityAllIncremental("hidden");
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setEosStatus(!nextIncrementalItem(lastShown));
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}
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setLocation();
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}
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toc = tableOfContents();
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hideTableOfContents();
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// bind event handlers
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document.onclick = mouseButtonClick;
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document.onmouseup = mouseButtonUp;
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document.onkeydown = keyDown;
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window.onresize = resized;
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window.onscroll = scrolled;
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singleSlideView();
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setLocation();
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resized();
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if (ie7)
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setTimeout("ieHack()", 100);
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showToolbar();
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}
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// add localize method to all strings for use
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// as in help.innerHTML = "help".localize();
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String.prototype.localize = function()
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{
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if (this == "")
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return this;
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// try full language code, e.g. en-US
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var s, lookup = localize[lang];
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if (lookup)
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{
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s = lookup[this];
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if (s)
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return s;
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}
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// try en if undefined for en-US
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var lg = lang.split("-");
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if (lg.length > 1)
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{
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lookup = localize[lg[0]];
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if (lookup)
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{
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s = lookup[this];
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if (s)
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return s;
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}
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}
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// otherwise string as is
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return this;
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}
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// suppress IE's image toolbar pop up
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function hideImageToolbar()
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{
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if (!ns_pos)
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{
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var images = document.getElementsByTagName("IMG");
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for (var i = 0; i < images.length; ++i)
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images[i].setAttribute("galleryimg", "no");
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}
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}
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// hack to persuade IE to compute correct document height
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// as needed for simulating fixed positioning of toolbar
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function ieHack()
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{
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window.resizeBy(0,-1);
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window.resizeBy(0, 1);
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}
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// Firefox reload SVG bug work around
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function reload(e)
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{
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if (!e)
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var e = window.event;
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hideBackgrounds();
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setTimeout("document.reload();", 100);
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stopPropagation(e);
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e.cancel = true;
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e.returnValue = false;
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return false;
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}
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// Safari and Konqueror don't yet support getComputedStyle()
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// and they always reload page when location.href is updated
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function isKHTML()
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{
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var agent = navigator.userAgent;
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return (agent.indexOf("KHTML") >= 0 ? true : false);
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}
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function resized()
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{
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var width = 0;
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if ( typeof( window.innerWidth ) == 'number' )
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width = window.innerWidth; // Non IE browser
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else if (document.documentElement && document.documentElement.clientWidth)
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width = document.documentElement.clientWidth; // IE6
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else if (document.body && document.body.clientWidth)
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width = document.body.clientWidth; // IE4
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var height = 0;
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if ( typeof( window.innerHeight ) == 'number' )
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height = window.innerHeight; // Non IE browser
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else if (document.documentElement && document.documentElement.clientHeight)
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height = document.documentElement.clientHeight; // IE6
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else if (document.body && document.body.clientHeight)
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height = document.body.clientHeight; // IE4
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if (height && (width/height > 1.05*1024/768))
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{
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width = height * 1024.0/768;
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||
}
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// IE fires onresize even when only font size is changed!
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// so we do a check to avoid blocking < and > actions
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if (width != lastWidth || height != lastHeight)
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{
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if (width >= 1100)
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sizeIndex = 5; // 4
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||
else if (width >= 1000)
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sizeIndex = 4; // 3
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else if (width >= 800)
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sizeIndex = 3; // 2
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else if (width >= 600)
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sizeIndex = 2; // 1
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else if (width)
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sizeIndex = 0;
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|
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// add in font size adjustment from meta element e.g.
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// <meta name="font-size-adjustment" content="-2" />
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// useful when slides have too much content ;-)
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if (0 <= sizeIndex + sizeAdjustment &&
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sizeIndex + sizeAdjustment < sizes.length)
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sizeIndex = sizeIndex + sizeAdjustment;
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||
|
||
// enables cross browser use of relative width/height
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||
// on object elements for use with SVG and Flash media
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adjustObjectDimensions(width, height);
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||
|
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document.body.style.fontSize = sizes[sizeIndex];
|
||
|
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lastWidth = width;
|
||
lastHeight = height;
|
||
|
||
// force reflow to work around Mozilla bug
|
||
//if (ns_pos)
|
||
{
|
||
var slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
showSlide(slide);
|
||
}
|
||
|
||
// force correct positioning of toolbar
|
||
refreshToolbar(200);
|
||
}
|
||
}
|
||
|
||
function scrolled()
|
||
{
|
||
if (toolbar && !ns_pos && !ie7)
|
||
{
|
||
hackoffset = scrollXOffset();
|
||
// hide toolbar
|
||
toolbar.style.display = "none";
|
||
|
||
// make it reappear later
|
||
if (scrollhack == 0 && !viewAll)
|
||
{
|
||
setTimeout(showToolbar, 1000);
|
||
scrollhack = 1;
|
||
}
|
||
}
|
||
}
|
||
|
||
// used to ensure IE refreshes toolbar in correct position
|
||
function refreshToolbar(interval)
|
||
{
|
||
if (!ns_pos && !ie7)
|
||
{
|
||
hideToolbar();
|
||
setTimeout(showToolbar, interval);
|
||
}
|
||
}
|
||
|
||
// restores toolbar after short delay
|
||
function showToolbar()
|
||
{
|
||
if (wantToolbar)
|
||
{
|
||
if (!ns_pos)
|
||
{
|
||
// adjust position to allow for scrolling
|
||
var xoffset = scrollXOffset();
|
||
toolbar.style.left = xoffset;
|
||
toolbar.style.right = xoffset;
|
||
|
||
// determine vertical scroll offset
|
||
//var yoffset = scrollYOffset();
|
||
|
||
// bottom is doc height - window height - scroll offset
|
||
//var bottom = documentHeight() - lastHeight - yoffset
|
||
|
||
//if (yoffset > 0 || documentHeight() > lastHeight)
|
||
// bottom += 16; // allow for height of scrollbar
|
||
|
||
toolbar.style.bottom = 0; //bottom;
|
||
}
|
||
|
||
toolbar.style.display = "block";
|
||
toolbar.style.visibility = "visible";
|
||
}
|
||
|
||
scrollhack = 0;
|
||
|
||
|
||
// set the keyboard focus to the help link on the
|
||
// toolbar to ensure that document has the focus
|
||
// IE doesn't always work with window.focus()
|
||
// and this hack has benefit of Enter for help
|
||
|
||
try
|
||
{
|
||
if (!opera)
|
||
helpAnchor.focus();
|
||
}
|
||
catch (e)
|
||
{
|
||
}
|
||
}
|
||
|
||
function test()
|
||
{
|
||
var s = "docH: " + documentHeight() +
|
||
" winH: " + lastHeight +
|
||
" yoffset: " + scrollYOffset() +
|
||
" toolbot: " + (documentHeight() - lastHeight - scrollYOffset());
|
||
|
||
//alert(s);
|
||
|
||
var slide = slides[slidenum];
|
||
// IE getAttribute requires "class" to be "className"
|
||
var name = ns_pos ? "class" : "className";
|
||
var style = (slide.currentStyle ? slide.currentStyle["backgroundColor"] :
|
||
document.defaultView.getComputedStyle(slide, '').getPropertyValue("background-color"));
|
||
alert("class='" + slide.getAttribute(name) + "' backgroundColor: " + style);
|
||
}
|
||
|
||
function hideToolbar()
|
||
{
|
||
toolbar.style.display = "none";
|
||
toolbar.style.visibility = "hidden";
|
||
window.focus();
|
||
}
|
||
|
||
// invoked via F key
|
||
function toggleToolbar()
|
||
{
|
||
if (!viewAll)
|
||
{
|
||
if (toolbar.style.display == "none")
|
||
{
|
||
toolbar.style.display = "block";
|
||
toolbar.style.visibility = "visible";
|
||
wantToolbar = 1;
|
||
}
|
||
else
|
||
{
|
||
toolbar.style.display = "none";
|
||
toolbar.style.visibility = "hidden";
|
||
wantToolbar = 0;
|
||
}
|
||
}
|
||
}
|
||
|
||
function scrollXOffset()
|
||
{
|
||
if (window.pageXOffset)
|
||
return self.pageXOffset;
|
||
|
||
if (document.documentElement &&
|
||
document.documentElement.scrollLeft)
|
||
return document.documentElement.scrollLeft;
|
||
|
||
if (document.body)
|
||
return document.body.scrollLeft;
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
function scrollYOffset()
|
||
{
|
||
if (window.pageYOffset)
|
||
return self.pageYOffset;
|
||
|
||
if (document.documentElement &&
|
||
document.documentElement.scrollTop)
|
||
return document.documentElement.scrollTop;
|
||
|
||
if (document.body)
|
||
return document.body.scrollTop;
|
||
|
||
return 0;
|
||
}
|
||
|
||
// looking for a way to determine height of slide content
|
||
// the slide itself is set to the height of the window
|
||
function optimizeFontSize()
|
||
{
|
||
var slide = slides[slidenum];
|
||
|
||
//var dh = documentHeight(); //getDocHeight(document);
|
||
var dh = slide.scrollHeight;
|
||
var wh = getWindowHeight();
|
||
var u = 100 * dh / wh;
|
||
|
||
alert("window utilization = " + u + "% (doc "
|
||
+ dh + " win " + wh + ")");
|
||
}
|
||
|
||
function getDocHeight(doc) // from document object
|
||
{
|
||
if (!doc)
|
||
doc = document;
|
||
|
||
if (doc && doc.body && doc.body.offsetHeight)
|
||
return doc.body.offsetHeight; // ns/gecko syntax
|
||
|
||
if (doc && doc.body && doc.body.scrollHeight)
|
||
return doc.body.scrollHeight;
|
||
|
||
alert("couldn't determine document height");
|
||
}
|
||
|
||
function getWindowHeight()
|
||
{
|
||
if ( typeof( window.innerHeight ) == 'number' )
|
||
return window.innerHeight; // Non IE browser
|
||
|
||
if (document.documentElement && document.documentElement.clientHeight)
|
||
return document.documentElement.clientHeight; // IE6
|
||
|
||
if (document.body && document.body.clientHeight)
|
||
return document.body.clientHeight; // IE4
|
||
}
|
||
|
||
|
||
|
||
function documentHeight()
|
||
{
|
||
var sh, oh;
|
||
|
||
sh = document.body.scrollHeight;
|
||
oh = document.body.offsetHeight;
|
||
|
||
if (sh && oh)
|
||
{
|
||
return (sh > oh ? sh : oh);
|
||
}
|
||
|
||
// no idea!
|
||
return 0;
|
||
}
|
||
|
||
function smaller()
|
||
{
|
||
if (sizeIndex > 0)
|
||
{
|
||
--sizeIndex;
|
||
}
|
||
|
||
toolbar.style.display = "none";
|
||
document.body.style.fontSize = sizes[sizeIndex];
|
||
var slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
showSlide(slide);
|
||
setTimeout(showToolbar, 300);
|
||
}
|
||
|
||
function bigger()
|
||
{
|
||
if (sizeIndex < sizes.length - 1)
|
||
{
|
||
++sizeIndex;
|
||
}
|
||
|
||
toolbar.style.display = "none";
|
||
document.body.style.fontSize = sizes[sizeIndex];
|
||
var slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
showSlide(slide);
|
||
setTimeout(showToolbar, 300);
|
||
}
|
||
|
||
// enables cross browser use of relative width/height
|
||
// on object elements for use with SVG and Flash media
|
||
// with thanks to Ivan Herman for the suggestion
|
||
function adjustObjectDimensions(width, height)
|
||
{
|
||
for( var i = 0; i < objects.length; i++ )
|
||
{
|
||
var obj = objects[i];
|
||
var mimeType = obj.getAttribute("type");
|
||
|
||
if (mimeType == "image/svg+xml" || mimeType == "application/x-shockwave-flash")
|
||
{
|
||
if ( !obj.initialWidth )
|
||
obj.initialWidth = obj.getAttribute("width");
|
||
|
||
if ( !obj.initialHeight )
|
||
obj.initialHeight = obj.getAttribute("height");
|
||
|
||
if ( obj.initialWidth && obj.initialWidth.charAt(obj.initialWidth.length-1) == "%" )
|
||
{
|
||
var w = parseInt(obj.initialWidth.slice(0, obj.initialWidth.length-1));
|
||
var newW = width * (w/100.0);
|
||
obj.setAttribute("width",newW);
|
||
}
|
||
|
||
if ( obj.initialHeight && obj.initialHeight.charAt(obj.initialHeight.length-1) == "%" )
|
||
{
|
||
var h = parseInt(obj.initialHeight.slice(0, obj.initialHeight.length-1));
|
||
var newH = height * (h/100.0);
|
||
obj.setAttribute("height", newH);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
function cancel(event)
|
||
{
|
||
if (event)
|
||
{
|
||
event.cancel = true;
|
||
event.returnValue = false;
|
||
|
||
if (event.preventDefault)
|
||
event.preventDefault();
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// See e.g. http://www.quirksmode.org/js/events/keys.html for keycodes
|
||
function keyDown(event)
|
||
{
|
||
var key;
|
||
|
||
if (!event)
|
||
var event = window.event;
|
||
|
||
// kludge around NS/IE differences
|
||
if (window.event)
|
||
key = window.event.keyCode;
|
||
else if (event.which)
|
||
key = event.which;
|
||
else
|
||
return true; // Yikes! unknown browser
|
||
|
||
// ignore event if key value is zero
|
||
// as for alt on Opera and Konqueror
|
||
if (!key)
|
||
return true;
|
||
|
||
// check for concurrent control/command/alt key
|
||
// but are these only present on mouse events?
|
||
|
||
if (event.ctrlKey || event.altKey || event.metaKey)
|
||
return true;
|
||
|
||
// dismiss table of contents if visible
|
||
if (isShownToc() && key != 9 && key != 16 && key != 38 && key != 40)
|
||
{
|
||
hideTableOfContents();
|
||
|
||
if (key == 27 || key == 84 || key == 67)
|
||
return cancel(event);
|
||
}
|
||
|
||
if (key == 34) // Page Down
|
||
{
|
||
nextSlide(false);
|
||
return cancel(event);
|
||
}
|
||
else if (key == 33) // Page Up
|
||
{
|
||
previousSlide(false);
|
||
return cancel(event);
|
||
}
|
||
else if (key == 32) // space bar
|
||
{
|
||
nextSlide(true);
|
||
return cancel(event);
|
||
}
|
||
else if (key == 37 || key == 38) // Left arrow || Up arrow
|
||
{
|
||
previousSlide(!event.shiftKey);
|
||
return cancel(event);
|
||
}
|
||
else if (key == 36) // Home
|
||
{
|
||
firstSlide();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 35) // End
|
||
{
|
||
lastSlide();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 39 || key == 40) // Right arrow || Down arrow
|
||
{
|
||
nextSlide(!event.shiftKey);
|
||
return cancel(event);
|
||
}
|
||
else if (key == 13) // Enter
|
||
{
|
||
if (outline)
|
||
{
|
||
if (outline.visible)
|
||
fold(outline);
|
||
else
|
||
unfold(outline);
|
||
|
||
return cancel(event);
|
||
}
|
||
}
|
||
else if (key == 188) // < for smaller fonts
|
||
{
|
||
smaller();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 190) // > for larger fonts
|
||
{
|
||
bigger();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 189 || key == 109) // - for smaller fonts
|
||
{
|
||
smaller();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 187 || key == 191 || key == 107) // = + for larger fonts
|
||
{
|
||
bigger();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 83) // S for smaller fonts
|
||
{
|
||
smaller();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 66) // B for larger fonts
|
||
{
|
||
bigger();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 90) // Z for last slide
|
||
{
|
||
lastSlide();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 70) // F for toggle toolbar
|
||
{
|
||
toggleToolbar();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 65) // A for toggle view single/all slides
|
||
{
|
||
toggleView();
|
||
return cancel(event);
|
||
}
|
||
else if (key == 75) // toggle action of left click for next page
|
||
{
|
||
mouseClickEnabled = !mouseClickEnabled;
|
||
alert((mouseClickEnabled ? "enabled" : "disabled") + " mouse click advance");
|
||
return cancel(event);
|
||
}
|
||
else if (key == 84 || key == 67) // T or C for table of contents
|
||
{
|
||
if (toc)
|
||
showTableOfContents();
|
||
|
||
return cancel(event);
|
||
}
|
||
else if (key == 72) // H for help
|
||
{
|
||
window.location = helpPage;
|
||
return cancel(event);
|
||
}
|
||
|
||
//else if (key == 93) // Windows menu key
|
||
//alert("lastShown is " + lastShown);
|
||
//else alert("key code is "+ key);
|
||
|
||
|
||
return true;
|
||
}
|
||
|
||
// make note of length of selected text
|
||
// as this evaluates to zero in click event
|
||
function mouseButtonUp(e)
|
||
{
|
||
selectedTextLen = getSelectedText().length;
|
||
}
|
||
|
||
// right mouse button click is reserved for context menus
|
||
// it is more reliable to detect rightclick than leftclick
|
||
function mouseButtonClick(e)
|
||
{
|
||
var rightclick = false;
|
||
var leftclick = false;
|
||
var middleclick = false;
|
||
var target;
|
||
|
||
if (!e)
|
||
var e = window.event;
|
||
|
||
if (e.target)
|
||
target = e.target;
|
||
else if (e.srcElement)
|
||
target = e.srcElement;
|
||
|
||
// work around Safari bug
|
||
if (target.nodeType == 3)
|
||
target = target.parentNode;
|
||
|
||
if (e.which) // all browsers except IE
|
||
{
|
||
leftclick = (e.which == 1);
|
||
middleclick = (e.which == 2);
|
||
rightclick = (e.which == 3);
|
||
}
|
||
else if (e.button)
|
||
{
|
||
// Konqueror gives 1 for left, 4 for middle
|
||
// IE6 gives 0 for left and not 1 as I expected
|
||
|
||
if (e.button == 4)
|
||
middleclick = true;
|
||
|
||
// all browsers agree on 2 for right button
|
||
rightclick = (e.button == 2);
|
||
}
|
||
else leftclick = true;
|
||
|
||
// dismiss table of contents
|
||
hideTableOfContents();
|
||
|
||
if (selectedTextLen > 0)
|
||
{
|
||
stopPropagation(e);
|
||
e.cancel = true;
|
||
e.returnValue = false;
|
||
return false;
|
||
}
|
||
|
||
// check if target is something that probably want's clicks
|
||
// e.g. embed, object, input, textarea, select, option
|
||
|
||
if (mouseClickEnabled && leftclick &&
|
||
target.nodeName != "EMBED" &&
|
||
target.nodeName != "OBJECT" &&
|
||
target.nodeName != "INPUT" &&
|
||
target.nodeName != "TEXTAREA" &&
|
||
target.nodeName != "SELECT" &&
|
||
target.nodeName != "OPTION")
|
||
{
|
||
nextSlide(true);
|
||
stopPropagation(e);
|
||
e.cancel = true;
|
||
e.returnValue = false;
|
||
}
|
||
}
|
||
|
||
function previousSlide(incremental)
|
||
{
|
||
if (!viewAll)
|
||
{
|
||
var slide;
|
||
|
||
if ((incremental || slidenum == 0) && lastShown != null)
|
||
{
|
||
lastShown = hidePreviousItem(lastShown);
|
||
setEosStatus(false);
|
||
}
|
||
else if (slidenum > 0)
|
||
{
|
||
slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
|
||
slidenum = slidenum - 1;
|
||
slide = slides[slidenum];
|
||
setVisibilityAllIncremental("visible");
|
||
lastShown = previousIncrementalItem(null);
|
||
setEosStatus(true);
|
||
showSlide(slide);
|
||
}
|
||
|
||
setLocation();
|
||
|
||
if (!ns_pos)
|
||
refreshToolbar(200);
|
||
}
|
||
}
|
||
|
||
function nextSlide(incremental)
|
||
{
|
||
if (!viewAll)
|
||
{
|
||
var slide, last = lastShown;
|
||
|
||
if (incremental || slidenum == slides.length - 1)
|
||
lastShown = revealNextItem(lastShown);
|
||
|
||
if ((!incremental || lastShown == null) && slidenum < slides.length - 1)
|
||
{
|
||
slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
|
||
slidenum = slidenum + 1;
|
||
slide = slides[slidenum];
|
||
lastShown = null;
|
||
setVisibilityAllIncremental("hidden");
|
||
showSlide(slide);
|
||
}
|
||
else if (!lastShown)
|
||
{
|
||
if (last && incremental)
|
||
lastShown = last;
|
||
}
|
||
|
||
setLocation();
|
||
|
||
setEosStatus(!nextIncrementalItem(lastShown));
|
||
|
||
if (!ns_pos)
|
||
refreshToolbar(200);
|
||
}
|
||
}
|
||
|
||
// to first slide with nothing revealed
|
||
// i.e. state at start of presentation
|
||
function firstSlide()
|
||
{
|
||
if (!viewAll)
|
||
{
|
||
var slide;
|
||
|
||
if (slidenum != 0)
|
||
{
|
||
slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
|
||
slidenum = 0;
|
||
slide = slides[slidenum];
|
||
lastShown = null;
|
||
setVisibilityAllIncremental("hidden");
|
||
showSlide(slide);
|
||
}
|
||
|
||
setEosStatus(!nextIncrementalItem(lastShown));
|
||
setLocation();
|
||
}
|
||
}
|
||
|
||
|
||
// to last slide with everything revealed
|
||
// i.e. state at end of presentation
|
||
function lastSlide()
|
||
{
|
||
if (!viewAll)
|
||
{
|
||
var slide;
|
||
|
||
lastShown = null; //revealNextItem(lastShown);
|
||
|
||
if (lastShown == null && slidenum < slides.length - 1)
|
||
{
|
||
slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
slidenum = slides.length - 1;
|
||
slide = slides[slidenum];
|
||
setVisibilityAllIncremental("visible");
|
||
lastShown = previousIncrementalItem(null);
|
||
|
||
showSlide(slide);
|
||
}
|
||
else
|
||
{
|
||
setVisibilityAllIncremental("visible");
|
||
lastShown = previousIncrementalItem(null);
|
||
}
|
||
|
||
setEosStatus(true);
|
||
setLocation();
|
||
}
|
||
}
|
||
|
||
function setEosStatus(state)
|
||
{
|
||
if (eos)
|
||
eos.style.color = (state ? "rgb(240,240,240)" : "red");
|
||
}
|
||
|
||
function showSlide(slide)
|
||
{
|
||
syncBackground(slide);
|
||
window.scrollTo(0,0);
|
||
slide.style.visibility = "visible";
|
||
slide.style.display = "block";
|
||
}
|
||
|
||
function hideSlide(slide)
|
||
{
|
||
slide.style.visibility = "hidden";
|
||
slide.style.display = "none";
|
||
}
|
||
|
||
function beforePrint()
|
||
{
|
||
showAllSlides();
|
||
hideToolbar();
|
||
}
|
||
|
||
function afterPrint()
|
||
{
|
||
if (!viewAll)
|
||
{
|
||
singleSlideView();
|
||
showToolbar();
|
||
}
|
||
}
|
||
|
||
function printSlides()
|
||
{
|
||
beforePrint();
|
||
window.print();
|
||
afterPrint();
|
||
}
|
||
|
||
function toggleView()
|
||
{
|
||
if (viewAll)
|
||
{
|
||
singleSlideView();
|
||
showToolbar();
|
||
viewAll = 0;
|
||
}
|
||
else
|
||
{
|
||
showAllSlides();
|
||
hideToolbar();
|
||
viewAll = 1;
|
||
}
|
||
}
|
||
|
||
// prepare for printing
|
||
function showAllSlides()
|
||
{
|
||
var slide;
|
||
|
||
for (var i = 0; i < slides.length; ++i)
|
||
{
|
||
slide = slides[i];
|
||
|
||
slide.style.position = "relative";
|
||
slide.style.borderTopStyle = "solid";
|
||
slide.style.borderTopWidth = "thin";
|
||
slide.style.borderTopColor = "black";
|
||
|
||
try {
|
||
if (i == 0)
|
||
slide.style.pageBreakBefore = "avoid";
|
||
else
|
||
slide.style.pageBreakBefore = "always";
|
||
}
|
||
catch (e)
|
||
{
|
||
//do nothing
|
||
}
|
||
|
||
setVisibilityAllIncremental("visible");
|
||
showSlide(slide);
|
||
}
|
||
|
||
var note;
|
||
|
||
for (var i = 0; i < notes.length; ++i)
|
||
{
|
||
showSlide(notes[i]);
|
||
}
|
||
|
||
// no easy way to render background under each slide
|
||
// without duplicating the background divs for each slide
|
||
// therefore hide backgrounds to avoid messing up slides
|
||
hideBackgrounds();
|
||
}
|
||
|
||
// restore after printing
|
||
function singleSlideView()
|
||
{
|
||
var slide;
|
||
|
||
for (var i = 0; i < slides.length; ++i)
|
||
{
|
||
slide = slides[i];
|
||
|
||
slide.style.position = "absolute";
|
||
|
||
if (i == slidenum)
|
||
{
|
||
slide.style.borderStyle = "none";
|
||
showSlide(slide);
|
||
}
|
||
else
|
||
{
|
||
slide.style.borderStyle = "none";
|
||
hideSlide(slide);
|
||
}
|
||
}
|
||
|
||
setVisibilityAllIncremental("visible");
|
||
lastShown = previousIncrementalItem(null);
|
||
|
||
var note;
|
||
|
||
for (var i = 0; i < notes.length; ++i)
|
||
{
|
||
hideSlide(notes[i]);
|
||
}
|
||
}
|
||
|
||
// the string str is a whitespace separated list of tokens
|
||
// test if str contains a particular token, e.g. "slide"
|
||
function hasToken(str, token)
|
||
{
|
||
if (str)
|
||
{
|
||
// define pattern as regular expression
|
||
var pattern = /\w+/g;
|
||
|
||
// check for matches
|
||
// place result in array
|
||
var result = str.match(pattern);
|
||
|
||
// now check if desired token is present
|
||
for (var i = 0; i < result.length; i++)
|
||
{
|
||
if (result[i] == token)
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
function getClassList(element)
|
||
{
|
||
if (typeof window.pageYOffset =='undefined')
|
||
return element.getAttribute("className");
|
||
|
||
return element.getAttribute("class");
|
||
}
|
||
|
||
function hasClass(element, name)
|
||
{
|
||
var regexp = new RegExp("(^| )" + name + "\W*");
|
||
|
||
if (regexp.test(getClassList(element)))
|
||
return true;
|
||
|
||
return false;
|
||
|
||
}
|
||
|
||
function removeClass(element, name)
|
||
{
|
||
// IE getAttribute requires "class" to be "className"
|
||
var clsname = ns_pos ? "class" : "className";
|
||
var clsval = element.getAttribute(clsname);
|
||
|
||
var regexp = new RegExp("(^| )" + name + "\W*");
|
||
|
||
if (clsval)
|
||
{
|
||
clsval = clsval.replace(regexp, "");
|
||
element.setAttribute(clsname, clsval);
|
||
}
|
||
}
|
||
|
||
function addClass(element, name)
|
||
{
|
||
if (!hasClass(element, name))
|
||
{
|
||
// IE getAttribute requires "class" to be "className"
|
||
var clsname = ns_pos ? "class" : "className";
|
||
var clsval = element.getAttribute(clsname);
|
||
element.setAttribute(clsname, (clsval ? clsval + " " + name : name));
|
||
}
|
||
}
|
||
|
||
// wysiwyg editors make it hard to use div elements
|
||
// e.g. amaya loses the div when you copy and paste
|
||
// this function wraps div elements around implicit
|
||
// slides which start with an h1 element and continue
|
||
// up to the next heading or div element
|
||
function wrapImplicitSlides()
|
||
{
|
||
var i, heading, node, next, div;
|
||
var headings = document.getElementsByTagName("h1");
|
||
|
||
if (!headings)
|
||
return;
|
||
|
||
for (i = 0; i < headings.length; ++i)
|
||
{
|
||
heading = headings[i];
|
||
|
||
if (heading.parentNode != document.body)
|
||
continue;
|
||
|
||
node = heading.nextSibling;
|
||
|
||
div = document.createElement("div");
|
||
div.setAttribute((ns_pos ? "class" : "className"), "slide");
|
||
document.body.replaceChild(div, heading);
|
||
div.appendChild(heading);
|
||
|
||
while (node)
|
||
{
|
||
if (node.nodeType == 1 && // an element
|
||
(node.nodeName == "H1" ||
|
||
node.nodeName == "h1" ||
|
||
node.nodeName == "DIV" ||
|
||
node.nodeName == "div"))
|
||
break;
|
||
|
||
next = node.nextSibling;
|
||
node = document.body.removeChild(node);
|
||
div.appendChild(node);
|
||
node = next;
|
||
}
|
||
}
|
||
}
|
||
|
||
// return new array of all slides
|
||
function collectSlides()
|
||
{
|
||
var slides = new Array();
|
||
var divs = document.body.getElementsByTagName("div");
|
||
|
||
for (var i = 0; i < divs.length; ++i)
|
||
{
|
||
div = divs.item(i);
|
||
|
||
if (hasClass(div, "slide"))
|
||
{
|
||
// add slide to collection
|
||
slides[slides.length] = div;
|
||
|
||
// hide each slide as it is found
|
||
div.style.display = "none";
|
||
div.style.visibility = "hidden";
|
||
|
||
// add dummy <br/> at end for scrolling hack
|
||
var node1 = document.createElement("br");
|
||
div.appendChild(node1);
|
||
var node2 = document.createElement("br");
|
||
div.appendChild(node2);
|
||
}
|
||
else if (hasClass(div, "background"))
|
||
{ // work around for Firefox SVG reload bug
|
||
// which otherwise replaces 1st SVG graphic with 2nd
|
||
div.style.display = "block";
|
||
}
|
||
}
|
||
|
||
return slides;
|
||
}
|
||
|
||
// return new array of all <div class="handout">
|
||
function collectNotes()
|
||
{
|
||
var notes = new Array();
|
||
var divs = document.body.getElementsByTagName("div");
|
||
|
||
for (var i = 0; i < divs.length; ++i)
|
||
{
|
||
div = divs.item(i);
|
||
|
||
if (hasClass(div, "handout"))
|
||
{
|
||
// add slide to collection
|
||
notes[notes.length] = div;
|
||
|
||
// hide handout notes as they are found
|
||
div.style.display = "none";
|
||
div.style.visibility = "hidden";
|
||
}
|
||
}
|
||
|
||
return notes;
|
||
}
|
||
|
||
// return new array of all <div class="background">
|
||
// including named backgrounds e.g. class="background titlepage"
|
||
function collectBackgrounds()
|
||
{
|
||
var backgrounds = new Array();
|
||
var divs = document.body.getElementsByTagName("div");
|
||
|
||
for (var i = 0; i < divs.length; ++i)
|
||
{
|
||
div = divs.item(i);
|
||
|
||
if (hasClass(div, "background"))
|
||
{
|
||
// add slide to collection
|
||
backgrounds[backgrounds.length] = div;
|
||
|
||
// hide named backgrounds as they are found
|
||
// e.g. class="background epilog"
|
||
if (getClassList(div) != "background")
|
||
{
|
||
div.style.display = "none";
|
||
div.style.visibility = "hidden";
|
||
}
|
||
}
|
||
}
|
||
|
||
return backgrounds;
|
||
}
|
||
|
||
// show just the backgrounds pertinent to this slide
|
||
function syncBackground(slide)
|
||
{
|
||
var background;
|
||
var bgColor;
|
||
|
||
if (slide.currentStyle)
|
||
bgColor = slide.currentStyle["backgroundColor"];
|
||
else if (document.defaultView)
|
||
{
|
||
var styles = document.defaultView.getComputedStyle(slide,null);
|
||
|
||
if (styles)
|
||
bgColor = styles.getPropertyValue("background-color");
|
||
else // broken implementation probably due Safari or Konqueror
|
||
{
|
||
//alert("defective implementation of getComputedStyle()");
|
||
bgColor = "transparent";
|
||
}
|
||
}
|
||
else
|
||
bgColor == "transparent";
|
||
|
||
if (bgColor == "transparent")
|
||
{
|
||
var slideClass = getClassList(slide);
|
||
|
||
for (var i = 0; i < backgrounds.length; i++)
|
||
{
|
||
background = backgrounds[i];
|
||
|
||
var bgClass = getClassList(background);
|
||
|
||
if (matchingBackground(slideClass, bgClass))
|
||
{
|
||
background.style.display = "block";
|
||
background.style.visibility = "visible";
|
||
}
|
||
else
|
||
{
|
||
background.style.display = "none";
|
||
background.style.visibility = "hidden";
|
||
}
|
||
}
|
||
}
|
||
else // forcibly hide all backgrounds
|
||
hideBackgrounds();
|
||
}
|
||
|
||
function hideBackgrounds()
|
||
{
|
||
for (var i = 0; i < backgrounds.length; i++)
|
||
{
|
||
background = backgrounds[i];
|
||
background.style.display = "none";
|
||
background.style.visibility = "hidden";
|
||
}
|
||
}
|
||
|
||
// compare classes for slide and background
|
||
function matchingBackground(slideClass, bgClass)
|
||
{
|
||
if (bgClass == "background")
|
||
return true;
|
||
|
||
// define pattern as regular expression
|
||
var pattern = /\w+/g;
|
||
|
||
// check for matches and place result in array
|
||
var result = slideClass.match(pattern);
|
||
|
||
// now check if desired name is present for background
|
||
for (var i = 0; i < result.length; i++)
|
||
{
|
||
if (hasToken(bgClass, result[i]))
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// left to right traversal of root's content
|
||
function nextNode(root, node)
|
||
{
|
||
if (node == null)
|
||
return root.firstChild;
|
||
|
||
if (node.firstChild)
|
||
return node.firstChild;
|
||
|
||
if (node.nextSibling)
|
||
return node.nextSibling;
|
||
|
||
for (;;)
|
||
{
|
||
node = node.parentNode;
|
||
|
||
if (!node || node == root)
|
||
break;
|
||
|
||
if (node && node.nextSibling)
|
||
return node.nextSibling;
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
// right to left traversal of root's content
|
||
function previousNode(root, node)
|
||
{
|
||
if (node == null)
|
||
{
|
||
node = root.lastChild;
|
||
|
||
if (node)
|
||
{
|
||
while (node.lastChild)
|
||
node = node.lastChild;
|
||
}
|
||
|
||
return node;
|
||
}
|
||
|
||
if (node.previousSibling)
|
||
{
|
||
node = node.previousSibling;
|
||
|
||
while (node.lastChild)
|
||
node = node.lastChild;
|
||
|
||
return node;
|
||
}
|
||
|
||
if (node.parentNode != root)
|
||
return node.parentNode;
|
||
|
||
return null;
|
||
}
|
||
|
||
// HTML elements that can be used with class="incremental"
|
||
// note that you can also put the class on containers like
|
||
// up, ol, dl, and div to make their contents appear
|
||
// incrementally. Upper case is used since this is what
|
||
// browsers report for HTML node names (text/html).
|
||
function incrementalElementList()
|
||
{
|
||
var inclist = new Array();
|
||
inclist["P"] = true;
|
||
inclist["PRE"] = true;
|
||
inclist["LI"] = true;
|
||
inclist["BLOCKQUOTE"] = true;
|
||
inclist["DT"] = true;
|
||
inclist["DD"] = true;
|
||
inclist["H2"] = true;
|
||
inclist["H3"] = true;
|
||
inclist["H4"] = true;
|
||
inclist["H5"] = true;
|
||
inclist["H6"] = true;
|
||
inclist["SPAN"] = true;
|
||
inclist["ADDRESS"] = true;
|
||
inclist["TABLE"] = true;
|
||
inclist["TR"] = true;
|
||
inclist["TH"] = true;
|
||
inclist["TD"] = true;
|
||
inclist["IMG"] = true;
|
||
inclist["OBJECT"] = true;
|
||
return inclist;
|
||
}
|
||
|
||
function nextIncrementalItem(node)
|
||
{
|
||
var slide = slides[slidenum];
|
||
|
||
for (;;)
|
||
{
|
||
node = nextNode(slide, node);
|
||
|
||
if (node == null || node.parentNode == null)
|
||
break;
|
||
|
||
if (node.nodeType == 1) // ELEMENT
|
||
{
|
||
if (node.nodeName == "BR")
|
||
continue;
|
||
|
||
if (hasClass(node, "incremental")
|
||
&& okayForIncremental[node.nodeName])
|
||
return node;
|
||
|
||
if (hasClass(node.parentNode, "incremental")
|
||
&& !hasClass(node, "non-incremental"))
|
||
return node;
|
||
}
|
||
}
|
||
|
||
return node;
|
||
}
|
||
|
||
function previousIncrementalItem(node)
|
||
{
|
||
var slide = slides[slidenum];
|
||
|
||
for (;;)
|
||
{
|
||
node = previousNode(slide, node);
|
||
|
||
if (node == null || node.parentNode == null)
|
||
break;
|
||
|
||
if (node.nodeType == 1)
|
||
{
|
||
if (node.nodeName == "BR")
|
||
continue;
|
||
|
||
if (hasClass(node, "incremental")
|
||
&& okayForIncremental[node.nodeName])
|
||
return node;
|
||
|
||
if (hasClass(node.parentNode, "incremental")
|
||
&& !hasClass(node, "non-incremental"))
|
||
return node;
|
||
}
|
||
}
|
||
|
||
return node;
|
||
}
|
||
|
||
// set visibility for all elements on current slide with
|
||
// a parent element with attribute class="incremental"
|
||
function setVisibilityAllIncremental(value)
|
||
{
|
||
var node = nextIncrementalItem(null);
|
||
|
||
while (node)
|
||
{
|
||
node.style.visibility = value;
|
||
node = nextIncrementalItem(node);
|
||
}
|
||
}
|
||
|
||
// reveal the next hidden item on the slide
|
||
// node is null or the node that was last revealed
|
||
function revealNextItem(node)
|
||
{
|
||
node = nextIncrementalItem(node);
|
||
|
||
if (node && node.nodeType == 1) // an element
|
||
node.style.visibility = "visible";
|
||
|
||
return node;
|
||
}
|
||
|
||
|
||
// exact inverse of revealNextItem(node)
|
||
function hidePreviousItem(node)
|
||
{
|
||
if (node && node.nodeType == 1) // an element
|
||
node.style.visibility = "hidden";
|
||
|
||
return previousIncrementalItem(node);
|
||
}
|
||
|
||
|
||
/* set click handlers on all anchors */
|
||
function patchAnchors()
|
||
{
|
||
var anchors = document.body.getElementsByTagName("a");
|
||
|
||
for (var i = 0; i < anchors.length; ++i)
|
||
{
|
||
anchors[i].onclick = clickedAnchor;
|
||
}
|
||
}
|
||
|
||
function clickedAnchor(e)
|
||
{
|
||
if (!e)
|
||
var e = window.event;
|
||
|
||
// compare this.href with location.href
|
||
// for link to another slide in this doc
|
||
|
||
if (pageAddress(this.href) == pageAddress(location.href))
|
||
{
|
||
// yes, so find new slide number
|
||
var newslidenum = findSlideNumber(this.href);
|
||
|
||
if (newslidenum != slidenum)
|
||
{
|
||
slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
slidenum = newslidenum;
|
||
slide = slides[slidenum];
|
||
showSlide(slide);
|
||
setLocation();
|
||
}
|
||
}
|
||
else if (this.target == null)
|
||
location.href = this.href;
|
||
|
||
this.blur();
|
||
stopPropagation(e);
|
||
}
|
||
|
||
function pageAddress(uri)
|
||
{
|
||
var i = uri.indexOf("#");
|
||
|
||
// check if anchor is entire page
|
||
|
||
if (i < 0)
|
||
return uri; // yes
|
||
|
||
return uri.substr(0, i);
|
||
}
|
||
|
||
function showSlideNumber()
|
||
{
|
||
slideNumElement.innerHTML = "slide".localize() + " " +
|
||
(slidenum + 1) + "/" + slides.length;
|
||
}
|
||
|
||
function setLocation()
|
||
{
|
||
var uri = pageAddress(location.href);
|
||
|
||
//if (slidenum > 0)
|
||
uri = uri + "#(" + (slidenum+1) + ")";
|
||
|
||
if (uri != location.href && !khtml)
|
||
location.href = uri;
|
||
|
||
document.title = title + " (" + (slidenum+1) + ")";
|
||
//document.title = (slidenum+1) + ") " + slideName(slidenum);
|
||
|
||
showSlideNumber();
|
||
}
|
||
|
||
// find current slide based upon location
|
||
// first find target anchor and then look
|
||
// for associated div element enclosing it
|
||
// finally map that to slide number
|
||
function findSlideNumber(uri)
|
||
{
|
||
// first get anchor from page location
|
||
|
||
var i = uri.indexOf("#");
|
||
|
||
// check if anchor is entire page
|
||
|
||
if (i < 0)
|
||
return 0; // yes
|
||
|
||
var anchor = unescape(uri.substr(i+1));
|
||
|
||
// now use anchor as XML ID to find target
|
||
var target = document.getElementById(anchor);
|
||
|
||
if (!target)
|
||
{
|
||
// does anchor look like "(2)" for slide 2 ??
|
||
// where first slide is (1)
|
||
var re = /\((\d)+\)/;
|
||
|
||
if (anchor.match(re))
|
||
{
|
||
var num = parseInt(anchor.substring(1, anchor.length-1));
|
||
|
||
if (num > slides.length)
|
||
num = 1;
|
||
|
||
if (--num < 0)
|
||
num = 0;
|
||
|
||
return num;
|
||
}
|
||
|
||
// accept [2] for backwards compatibility
|
||
re = /\[(\d)+\]/;
|
||
|
||
if (anchor.match(re))
|
||
{
|
||
var num = parseInt(anchor.substring(1, anchor.length-1));
|
||
|
||
if (num > slides.length)
|
||
num = 1;
|
||
|
||
if (--num < 0)
|
||
num = 0;
|
||
|
||
return num;
|
||
}
|
||
|
||
// oh dear unknown anchor
|
||
return 0;
|
||
}
|
||
|
||
// search for enclosing slide
|
||
|
||
while (true)
|
||
{
|
||
// browser coerces html elements to uppercase!
|
||
if (target.nodeName.toLowerCase() == "div" &&
|
||
hasClass(target, "slide"))
|
||
{
|
||
// found the slide element
|
||
break;
|
||
}
|
||
|
||
// otherwise try parent element if any
|
||
|
||
target = target.parentNode;
|
||
|
||
if (!target)
|
||
{
|
||
return 0; // no luck!
|
||
}
|
||
};
|
||
|
||
for (i = 0; i < slides.length; ++i)
|
||
{
|
||
if (slides[i] == target)
|
||
return i; // success
|
||
}
|
||
|
||
// oh dear still no luck
|
||
return 0;
|
||
}
|
||
|
||
// find slide name from first h1 element
|
||
// default to document title + slide number
|
||
function slideName(index)
|
||
{
|
||
var name = null;
|
||
var slide = slides[index];
|
||
|
||
var heading = findHeading(slide);
|
||
|
||
if (heading)
|
||
name = extractText(heading);
|
||
|
||
if (!name)
|
||
name = title + "(" + (index + 1) + ")";
|
||
|
||
name.replace(/\&/g, "&");
|
||
name.replace(/\</g, "<");
|
||
name.replace(/\>/g, ">");
|
||
|
||
return name;
|
||
}
|
||
|
||
// find first h1 element in DOM tree
|
||
function findHeading(node)
|
||
{
|
||
if (!node || node.nodeType != 1)
|
||
return null;
|
||
|
||
if (node.nodeName == "H1" || node.nodeName == "h1")
|
||
return node;
|
||
|
||
var child = node.firstChild;
|
||
|
||
while (child)
|
||
{
|
||
node = findHeading(child);
|
||
|
||
if (node)
|
||
return node;
|
||
|
||
child = child.nextSibling;
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
// recursively extract text from DOM tree
|
||
function extractText(node)
|
||
{
|
||
if (!node)
|
||
return "";
|
||
|
||
// text nodes
|
||
if (node.nodeType == 3)
|
||
return node.nodeValue;
|
||
|
||
// elements
|
||
if (node.nodeType == 1)
|
||
{
|
||
node = node.firstChild;
|
||
var text = "";
|
||
|
||
while (node)
|
||
{
|
||
text = text + extractText(node);
|
||
node = node.nextSibling;
|
||
}
|
||
|
||
return text;
|
||
}
|
||
|
||
return "";
|
||
}
|
||
|
||
|
||
// find copyright text from meta element
|
||
function findCopyright()
|
||
{
|
||
var name, content;
|
||
var meta = document.getElementsByTagName("meta");
|
||
|
||
for (var i = 0; i < meta.length; ++i)
|
||
{
|
||
name = meta[i].getAttribute("name");
|
||
content = meta[i].getAttribute("content");
|
||
|
||
if (name == "copyright")
|
||
return content;
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
function findSizeAdjust()
|
||
{
|
||
var name, content, offset;
|
||
var meta = document.getElementsByTagName("meta");
|
||
|
||
for (var i = 0; i < meta.length; ++i)
|
||
{
|
||
name = meta[i].getAttribute("name");
|
||
content = meta[i].getAttribute("content");
|
||
|
||
if (name == "font-size-adjustment")
|
||
return 1 * content;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
function addToolbar()
|
||
{
|
||
var slideCounter, page;
|
||
|
||
var toolbar = createElement("div");
|
||
toolbar.setAttribute("class", "toolbar");
|
||
|
||
if (ns_pos) // a reasonably behaved browser
|
||
{
|
||
var right = document.createElement("div");
|
||
right.setAttribute("style", "float: right; text-align: right");
|
||
|
||
slideCounter = document.createElement("div")
|
||
slideCounter.innerHTML = "slide".localize() + " n/m";
|
||
right.appendChild(slideCounter);
|
||
toolbar.appendChild(right);
|
||
|
||
var left = document.createElement("div");
|
||
left.setAttribute("style", "text-align: left");
|
||
|
||
// global end of slide indicator
|
||
eos = document.createElement("span");
|
||
eos.innerHTML = "* ";
|
||
left.appendChild(eos);
|
||
|
||
var help = document.createElement("a");
|
||
help.setAttribute("href", helpPage);
|
||
help.setAttribute("title", helpText.localize());
|
||
help.innerHTML = "help?".localize();
|
||
left.appendChild(help);
|
||
helpAnchor = help; // save for focus hack
|
||
|
||
var gap1 = document.createTextNode(" ");
|
||
left.appendChild(gap1);
|
||
|
||
var contents = document.createElement("a");
|
||
contents.setAttribute("href", "javascript:toggleTableOfContents()");
|
||
contents.setAttribute("title", "table of contents".localize());
|
||
contents.innerHTML = "contents?".localize();
|
||
left.appendChild(contents);
|
||
|
||
var gap2 = document.createTextNode(" ");
|
||
left.appendChild(gap2);
|
||
|
||
var i = location.href.indexOf("#");
|
||
|
||
// check if anchor is entire page
|
||
|
||
if (i > 0)
|
||
page = location.href.substr(0, i);
|
||
else
|
||
page = location.href;
|
||
|
||
var start = document.createElement("a");
|
||
start.setAttribute("href", page);
|
||
start.setAttribute("title", "restart presentation".localize());
|
||
start.innerHTML = "restart?".localize();
|
||
// start.setAttribute("href", "javascript:printSlides()");
|
||
// start.setAttribute("title", "print all slides".localize());
|
||
// start.innerHTML = "print!".localize();
|
||
left.appendChild(start);
|
||
|
||
var copyright = findCopyright();
|
||
|
||
if (copyright)
|
||
{
|
||
var span = document.createElement("span");
|
||
span.innerHTML = copyright;
|
||
span.style.color = "black";
|
||
span.style.marginLeft = "4em";
|
||
left.appendChild(span);
|
||
}
|
||
|
||
toolbar.appendChild(left);
|
||
}
|
||
else // IE so need to work around its poor CSS support
|
||
{
|
||
toolbar.style.position = (ie7 ? "fixed" : "absolute");
|
||
toolbar.style.zIndex = "200";
|
||
toolbar.style.width = "99.9%";
|
||
toolbar.style.height = "1.2em";
|
||
toolbar.style.top = "auto";
|
||
toolbar.style.bottom = "0";
|
||
toolbar.style.left = "0";
|
||
toolbar.style.right = "0";
|
||
toolbar.style.textAlign = "left";
|
||
toolbar.style.fontSize = "60%";
|
||
toolbar.style.color = "red";
|
||
toolbar.borderWidth = 0;
|
||
toolbar.style.background = "rgb(240,240,240)";
|
||
|
||
// would like to have help text left aligned
|
||
// and page counter right aligned, floating
|
||
// div's don't work, so instead use nested
|
||
// absolutely positioned div's.
|
||
|
||
var sp = document.createElement("span");
|
||
sp.innerHTML = " * ";
|
||
toolbar.appendChild(sp);
|
||
eos = sp; // end of slide indicator
|
||
|
||
var help = document.createElement("a");
|
||
help.setAttribute("href", helpPage);
|
||
help.setAttribute("title", helpText.localize());
|
||
help.innerHTML = "help?".localize();
|
||
toolbar.appendChild(help);
|
||
helpAnchor = help; // save for focus hack
|
||
|
||
var gap1 = document.createTextNode(" ");
|
||
toolbar.appendChild(gap1);
|
||
|
||
var contents = document.createElement("a");
|
||
contents.setAttribute("href", "javascript:toggleTableOfContents()");
|
||
contents.setAttribute("title", "table of contents".localize());
|
||
contents.innerHTML = "contents?".localize();
|
||
toolbar.appendChild(contents);
|
||
|
||
var gap2 = document.createTextNode(" ");
|
||
toolbar.appendChild(gap2);
|
||
|
||
var i = location.href.indexOf("#");
|
||
|
||
// check if anchor is entire page
|
||
|
||
if (i > 0)
|
||
page = location.href.substr(0, i);
|
||
else
|
||
page = location.href;
|
||
|
||
var start = document.createElement("a");
|
||
start.setAttribute("href", page);
|
||
start.setAttribute("title", "restart presentation".localize());
|
||
start.innerHTML = "restart?".localize();
|
||
// start.setAttribute("href", "javascript:printSlides()");
|
||
// start.setAttribute("title", "print all slides".localize());
|
||
// start.innerHTML = "print!".localize();
|
||
toolbar.appendChild(start);
|
||
|
||
var copyright = findCopyright();
|
||
|
||
if (copyright)
|
||
{
|
||
var span = document.createElement("span");
|
||
span.innerHTML = copyright;
|
||
span.style.color = "black";
|
||
span.style.marginLeft = "2em";
|
||
toolbar.appendChild(span);
|
||
}
|
||
|
||
slideCounter = document.createElement("div")
|
||
slideCounter.style.position = "absolute";
|
||
slideCounter.style.width = "auto"; //"20%";
|
||
slideCounter.style.height = "1.2em";
|
||
slideCounter.style.top = "auto";
|
||
slideCounter.style.bottom = 0;
|
||
slideCounter.style.right = "0";
|
||
slideCounter.style.textAlign = "right";
|
||
slideCounter.style.color = "red";
|
||
slideCounter.style.background = "rgb(240,240,240)";
|
||
|
||
slideCounter.innerHTML = "slide".localize() + " n/m";
|
||
toolbar.appendChild(slideCounter);
|
||
}
|
||
|
||
// ensure that click isn't passed through to the page
|
||
toolbar.onclick = stopPropagation;
|
||
document.body.appendChild(toolbar);
|
||
slideNumElement = slideCounter;
|
||
setEosStatus(false);
|
||
|
||
return toolbar;
|
||
}
|
||
|
||
function isShownToc()
|
||
{
|
||
if (toc && toc.style.visible == "visible")
|
||
return true;
|
||
|
||
return false;
|
||
}
|
||
|
||
function showTableOfContents()
|
||
{
|
||
if (toc)
|
||
{
|
||
if (toc.style.visibility != "visible")
|
||
{
|
||
toc.style.visibility = "visible";
|
||
toc.style.display = "block";
|
||
toc.focus();
|
||
|
||
if (ie7 && slidenum == 0)
|
||
setTimeout("ieHack()", 100);
|
||
}
|
||
else
|
||
hideTableOfContents();
|
||
}
|
||
}
|
||
|
||
function hideTableOfContents()
|
||
{
|
||
if (toc && toc.style.visibility != "hidden")
|
||
{
|
||
toc.style.visibility = "hidden";
|
||
toc.style.display = "none";
|
||
|
||
try
|
||
{
|
||
if (!opera)
|
||
helpAnchor.focus();
|
||
}
|
||
catch (e)
|
||
{
|
||
}
|
||
}
|
||
}
|
||
|
||
function toggleTableOfContents()
|
||
{
|
||
if (toc)
|
||
{
|
||
if (toc.style.visible != "visible")
|
||
showTableOfContents();
|
||
else
|
||
hideTableOfContents();
|
||
}
|
||
}
|
||
|
||
// called on clicking toc entry
|
||
function gotoEntry(e)
|
||
{
|
||
var target;
|
||
|
||
if (!e)
|
||
var e = window.event;
|
||
|
||
if (e.target)
|
||
target = e.target;
|
||
else if (e.srcElement)
|
||
target = e.srcElement;
|
||
|
||
// work around Safari bug
|
||
if (target.nodeType == 3)
|
||
target = target.parentNode;
|
||
|
||
if (target && target.nodeType == 1)
|
||
{
|
||
var uri = target.getAttribute("href");
|
||
|
||
if (uri)
|
||
{
|
||
//alert("going to " + uri);
|
||
var slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
slidenum = findSlideNumber(uri);
|
||
slide = slides[slidenum];
|
||
lastShown = null;
|
||
setLocation();
|
||
setVisibilityAllIncremental("hidden");
|
||
setEosStatus(!nextIncrementalItem(lastShown));
|
||
showSlide(slide);
|
||
//target.focus();
|
||
|
||
try
|
||
{
|
||
if (!opera)
|
||
helpAnchor.focus();
|
||
}
|
||
catch (e)
|
||
{
|
||
}
|
||
}
|
||
}
|
||
|
||
hideTableOfContents(e);
|
||
if (ie7) ieHack();
|
||
stopPropagation(e);
|
||
return cancel(e);
|
||
}
|
||
|
||
// called onkeydown for toc entry
|
||
function gotoTocEntry(event)
|
||
{
|
||
var key;
|
||
|
||
if (!event)
|
||
var event = window.event;
|
||
|
||
// kludge around NS/IE differences
|
||
if (window.event)
|
||
key = window.event.keyCode;
|
||
else if (event.which)
|
||
key = event.which;
|
||
else
|
||
return true; // Yikes! unknown browser
|
||
|
||
// ignore event if key value is zero
|
||
// as for alt on Opera and Konqueror
|
||
if (!key)
|
||
return true;
|
||
|
||
// check for concurrent control/command/alt key
|
||
// but are these only present on mouse events?
|
||
|
||
if (event.ctrlKey || event.altKey)
|
||
return true;
|
||
|
||
if (key == 13)
|
||
{
|
||
var uri = this.getAttribute("href");
|
||
|
||
if (uri)
|
||
{
|
||
//alert("going to " + uri);
|
||
var slide = slides[slidenum];
|
||
hideSlide(slide);
|
||
slidenum = findSlideNumber(uri);
|
||
slide = slides[slidenum];
|
||
lastShown = null;
|
||
setLocation();
|
||
setVisibilityAllIncremental("hidden");
|
||
setEosStatus(!nextIncrementalItem(lastShown));
|
||
showSlide(slide);
|
||
//target.focus();
|
||
|
||
try
|
||
{
|
||
if (!opera)
|
||
helpAnchor.focus();
|
||
}
|
||
catch (e)
|
||
{
|
||
}
|
||
}
|
||
|
||
hideTableOfContents();
|
||
if (ie7) ieHack();
|
||
return cancel(event);
|
||
}
|
||
|
||
if (key == 40 && this.next)
|
||
{
|
||
this.next.focus();
|
||
return cancel(event);
|
||
}
|
||
|
||
if (key == 38 && this.previous)
|
||
{
|
||
this.previous.focus();
|
||
return cancel(event);
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
function isTitleSlide(slide)
|
||
{
|
||
return hasClass(slide, "title");
|
||
}
|
||
|
||
// create div element with links to each slide
|
||
function tableOfContents()
|
||
{
|
||
var toc = document.createElement("div");
|
||
addClass(toc, "toc");
|
||
//toc.setAttribute("tabindex", "0");
|
||
|
||
var heading = document.createElement("div");
|
||
addClass(heading, "toc-heading");
|
||
heading.innerHTML = "Table of Contents".localize();
|
||
|
||
heading.style.textAlign = "center";
|
||
heading.style.width = "100%";
|
||
heading.style.margin = "0";
|
||
heading.style.marginBottom = "1em";
|
||
heading.style.borderBottomStyle = "solid";
|
||
heading.style.borderBottomColor = "rgb(180,180,180)";
|
||
heading.style.borderBottomWidth = "1px";
|
||
|
||
toc.appendChild(heading);
|
||
var previous = null;
|
||
|
||
for (var i = 0; i < slides.length; ++i)
|
||
{
|
||
var title = hasClass(slides[i], "title");
|
||
var num = document.createTextNode((i + 1) + ". ");
|
||
|
||
toc.appendChild(num);
|
||
|
||
var a = document.createElement("a");
|
||
a.setAttribute("href", "#(" + (i+1) + ")");
|
||
|
||
if (title)
|
||
addClass(a, "titleslide");
|
||
|
||
var name = document.createTextNode(slideName(i));
|
||
a.appendChild(name);
|
||
a.onclick = gotoEntry;
|
||
a.onkeydown = gotoTocEntry;
|
||
a.previous = previous;
|
||
|
||
if (previous)
|
||
previous.next = a;
|
||
|
||
toc.appendChild(a);
|
||
|
||
if (i == 0)
|
||
toc.first = a;
|
||
|
||
if (i < slides.length - 1)
|
||
{
|
||
var br = document.createElement("br");
|
||
toc.appendChild(br);
|
||
}
|
||
|
||
previous = a;
|
||
}
|
||
|
||
toc.focus = function () {
|
||
if (this.first)
|
||
this.first.focus();
|
||
}
|
||
|
||
toc.onclick = function (e) {
|
||
e||(e=window.event);
|
||
hideTableOfContents();
|
||
stopPropagation(e);
|
||
|
||
if (e.cancel != undefined)
|
||
e.cancel = true;
|
||
|
||
if (e.returnValue != undefined)
|
||
e.returnValue = false;
|
||
|
||
return false;
|
||
};
|
||
|
||
toc.style.position = "absolute";
|
||
toc.style.zIndex = "300";
|
||
toc.style.width = "60%";
|
||
toc.style.maxWidth = "30em";
|
||
toc.style.height = "30em";
|
||
toc.style.overflow = "auto";
|
||
toc.style.top = "auto";
|
||
toc.style.right = "auto";
|
||
toc.style.left = "4em";
|
||
toc.style.bottom = "4em";
|
||
toc.style.padding = "1em";
|
||
toc.style.background = "rgb(240,240,240)";
|
||
toc.style.borderStyle = "solid";
|
||
toc.style.borderWidth = "2px";
|
||
toc.style.fontSize = "60%";
|
||
|
||
document.body.insertBefore(toc, document.body.firstChild);
|
||
return toc;
|
||
}
|
||
|
||
function replaceByNonBreakingSpace(str)
|
||
{
|
||
for (var i = 0; i < str.length; ++i)
|
||
str[i] = 160;
|
||
}
|
||
|
||
|
||
function initOutliner()
|
||
{
|
||
var items = document.getElementsByTagName("LI");
|
||
|
||
for (var i = 0; i < items.length; ++i)
|
||
{
|
||
var target = items[i];
|
||
|
||
if (!hasClass(target.parentNode, "outline"))
|
||
continue;
|
||
|
||
target.onclick = outlineClick;
|
||
|
||
if (!ns_pos)
|
||
{
|
||
target.onmouseover = hoverOutline;
|
||
target.onmouseout = unhoverOutline;
|
||
}
|
||
|
||
if (foldable(target))
|
||
{
|
||
target.foldable = true;
|
||
target.onfocus = function () {outline = this;};
|
||
target.onblur = function () {outline = null;};
|
||
|
||
if (!target.getAttribute("tabindex"))
|
||
target.setAttribute("tabindex", "0");
|
||
|
||
if (hasClass(target, "expand"))
|
||
unfold(target);
|
||
else
|
||
fold(target);
|
||
}
|
||
else
|
||
{
|
||
addClass(target, "nofold");
|
||
target.visible = true;
|
||
target.foldable = false;
|
||
}
|
||
}
|
||
}
|
||
|
||
function foldable(item)
|
||
{
|
||
if (!item || item.nodeType != 1)
|
||
return false;
|
||
|
||
var node = item.firstChild;
|
||
|
||
while (node)
|
||
{
|
||
if (node.nodeType == 1 && isBlock(node))
|
||
return true;
|
||
|
||
node = node.nextSibling;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
function fold(item)
|
||
{
|
||
if (item)
|
||
{
|
||
removeClass(item, "unfolded");
|
||
addClass(item, "folded");
|
||
}
|
||
|
||
var node = item ? item.firstChild : null;
|
||
|
||
while (node)
|
||
{
|
||
if (node.nodeType == 1 && isBlock(node)) // element
|
||
{
|
||
// note that getElementStyle won't work for Safari 1.3
|
||
node.display = getElementStyle(node, "display", "display");
|
||
node.style.display = "none";
|
||
node.style.visibility = "hidden";
|
||
}
|
||
|
||
node = node.nextSibling;
|
||
}
|
||
|
||
item.visible = false;
|
||
}
|
||
|
||
function unfold(item)
|
||
{
|
||
if (item)
|
||
{
|
||
addClass(item, "unfolded");
|
||
removeClass(item, "folded");
|
||
}
|
||
|
||
var node = item ? item.firstChild : null;
|
||
|
||
while (node)
|
||
{
|
||
if (node.nodeType == 1 && isBlock(node)) // element
|
||
{
|
||
// with fallback for Safari, see above
|
||
node.style.display = (node.display ? node.display : "block");
|
||
node.style.visibility = "visible";
|
||
}
|
||
|
||
node = node.nextSibling;
|
||
}
|
||
|
||
item.visible = true;
|
||
}
|
||
|
||
function outlineClick(e)
|
||
{
|
||
var rightclick = false;
|
||
var target;
|
||
|
||
if (!e)
|
||
var e = window.event;
|
||
|
||
if (e.target)
|
||
target = e.target;
|
||
else if (e.srcElement)
|
||
target = e.srcElement;
|
||
|
||
// work around Safari bug
|
||
if (target.nodeType == 3)
|
||
target = target.parentNode;
|
||
|
||
while (target && target.visible == undefined)
|
||
target = target.parentNode;
|
||
|
||
if (!target)
|
||
return true;
|
||
|
||
if (e.which)
|
||
rightclick = (e.which == 3);
|
||
else if (e.button)
|
||
rightclick = (e.button == 2);
|
||
|
||
if (!rightclick && target.visible != undefined)
|
||
{
|
||
if (target.foldable)
|
||
{
|
||
if (target.visible)
|
||
fold(target);
|
||
else
|
||
unfold(target);
|
||
}
|
||
|
||
stopPropagation(e);
|
||
e.cancel = true;
|
||
e.returnValue = false;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
function hoverOutline(e)
|
||
{
|
||
var target;
|
||
|
||
if (!e)
|
||
var e = window.event;
|
||
|
||
if (e.target)
|
||
target = e.target;
|
||
else if (e.srcElement)
|
||
target = e.srcElement;
|
||
|
||
// work around Safari bug
|
||
if (target.nodeType == 3)
|
||
target = target.parentNode;
|
||
|
||
while (target && target.visible == undefined)
|
||
target = target.parentNode;
|
||
|
||
if (target && target.foldable)
|
||
target.style.cursor = "pointer";
|
||
|
||
return true;
|
||
}
|
||
|
||
function unhoverOutline(e)
|
||
{
|
||
var target;
|
||
|
||
if (!e)
|
||
var e = window.event;
|
||
|
||
if (e.target)
|
||
target = e.target;
|
||
else if (e.srcElement)
|
||
target = e.srcElement;
|
||
|
||
// work around Safari bug
|
||
if (target.nodeType == 3)
|
||
target = target.parentNode;
|
||
|
||
while (target && target.visible == undefined)
|
||
target = target.parentNode;
|
||
|
||
if (target)
|
||
target.style.cursor = "default";
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
function stopPropagation(e)
|
||
{
|
||
if (window.event)
|
||
{
|
||
window.event.cancelBubble = true;
|
||
//window.event.returnValue = false;
|
||
}
|
||
else if (e)
|
||
{
|
||
e.cancelBubble = true;
|
||
e.stopPropagation();
|
||
//e.preventDefault();
|
||
}
|
||
}
|
||
|
||
/* can't rely on display since we set that to none to hide things */
|
||
function isBlock(elem)
|
||
{
|
||
var tag = elem.nodeName;
|
||
|
||
return tag == "OL" || tag == "UL" || tag == "P" ||
|
||
tag == "LI" || tag == "TABLE" || tag == "PRE" ||
|
||
tag == "H1" || tag == "H2" || tag == "H3" ||
|
||
tag == "H4" || tag == "H5" || tag == "H6" ||
|
||
tag == "BLOCKQUOTE" || tag == "ADDRESS";
|
||
}
|
||
|
||
function getElementStyle(elem, IEStyleProp, CSSStyleProp)
|
||
{
|
||
if (elem.currentStyle)
|
||
{
|
||
return elem.currentStyle[IEStyleProp];
|
||
}
|
||
else if (window.getComputedStyle)
|
||
{
|
||
var compStyle = window.getComputedStyle(elem, "");
|
||
return compStyle.getPropertyValue(CSSStyleProp);
|
||
}
|
||
return "";
|
||
}
|
||
|
||
// works with text/html and text/xhtml+xml with thanks to Simon Willison
|
||
function createElement(element)
|
||
{
|
||
if (typeof document.createElementNS != 'undefined')
|
||
{
|
||
return document.createElementNS('http://www.w3.org/1999/xhtml', element);
|
||
}
|
||
|
||
if (typeof document.createElement != 'undefined')
|
||
{
|
||
return document.createElement(element);
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// designed to work with both text/html and text/xhtml+xml
|
||
function getElementsByTagName(name)
|
||
{
|
||
if (typeof document.getElementsByTagNameNS != 'undefined')
|
||
{
|
||
return document.getElementsByTagNameNS('http://www.w3.org/1999/xhtml', name);
|
||
}
|
||
|
||
if (typeof document.getElementsByTagName != 'undefined')
|
||
{
|
||
return document.getElementsByTagName(name);
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
/*
|
||
// clean alternative to innerHTML method, but on IE6
|
||
// it doesn't work with named entities like
|
||
// which need to be replaced by numeric entities
|
||
function insertText(element, text)
|
||
{
|
||
try
|
||
{
|
||
element.textContent = text; // DOM3 only
|
||
}
|
||
catch (e)
|
||
{
|
||
if (element.firstChild)
|
||
{
|
||
// remove current children
|
||
while (element.firstChild)
|
||
element.removeChild(element.firstChild);
|
||
}
|
||
|
||
element.appendChild(document.createTextNode(text));
|
||
}
|
||
}
|
||
|
||
// as above, but as method of all element nodes
|
||
// doesn't work in IE6 which doesn't allow you to
|
||
// add methods to the HTMLElement prototype
|
||
if (HTMLElement != undefined)
|
||
{
|
||
HTMLElement.prototype.insertText = function(text) {
|
||
var element = this;
|
||
|
||
try
|
||
{
|
||
element.textContent = text; // DOM3 only
|
||
}
|
||
catch (e)
|
||
{
|
||
if (element.firstChild)
|
||
{
|
||
// remove current children
|
||
while (element.firstChild)
|
||
element.removeChild(element.firstChild);
|
||
}
|
||
|
||
element.appendChild(document.createTextNode(text));
|
||
}
|
||
};
|
||
}
|
||
*/
|
||
|
||
function getSelectedText()
|
||
{
|
||
try
|
||
{
|
||
if (window.getSelection)
|
||
return window.getSelection().toString();
|
||
|
||
if (document.getSelection)
|
||
return document.getSelection().toString();
|
||
|
||
if (document.selection)
|
||
return document.selection.createRange().text;
|
||
}
|
||
catch (e)
|
||
{
|
||
return "";
|
||
}
|
||
return "";
|
||
}
|