xobs/lca2020-pay-it-forward
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added optional presentation progress bar

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This commit is contained in:
Hakim El Hattab
2011-12-22 00:00:29 -08:00
parent 2026c9645c
commit bdff009c74
3 changed files with 61 additions and 3 deletions
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20
js/reveal.js
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@ -59,6 +59,9 @@
* - Support for themes at initialization (default/linear/concave)
* - Code highlighting via highlight.js
*
* version 1.1:
* - Optional progress bar UI element
*
* TODO:
* - Touch/swipe interactions
* - Presentation overview via keyboard shortcut
@ -77,6 +80,7 @@ var Reveal = (function(){
// Configurations options, including;
// > {Boolean} controls
// > {Boolean} progress
// > {String} theme
// > {Boolean} rollingLinks
config = {},
@ -90,6 +94,7 @@ var Reveal = (function(){
*/
function initialize( options ) {
// Cache references to DOM elements
dom.progress = document.querySelector( 'body>progress' );
dom.controls = document.querySelector( '.controls' );
dom.controlsLeft = document.querySelector( '.controls .left' );
dom.controlsRight = document.querySelector( '.controls .right' );
@ -108,12 +113,18 @@ var Reveal = (function(){
// Fall back on default options
config.rollingLinks = options.rollingLinks === undefined ? true : options.rollingLinks;
config.controls = options.controls === undefined ? false : options.controls;
config.progress = options.progress === undefined ? false : options.progress;
config.theme = options.theme === undefined ? 'default' : options.theme;
if( config.controls ) {
dom.controls.style.display = 'block';
}
if( config.progress ) {
dom.progress.style.display = 'block';
dom.progress.max = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ).length - 1;
}
if( config.theme !== 'default' ) {
document.body.classList.add( config.theme );
}
@ -238,8 +249,8 @@ var Reveal = (function(){
for( var i = 0, len = nodes.length; i < len; i++ ) {
var node = nodes[i];
if( !node.className || !node.className.match( /roll/g ) ) {
if( node.textContent && ( !node.className || !node.className.match( /roll/g ) ) ) {
node.className += ' roll';
node.innerHTML = '<span data-title="'+ node.text +'">' + node.innerHTML + '</span>';
}
@ -300,6 +311,11 @@ var Reveal = (function(){
indexh = updateSlides( HORIZONTAL_SLIDES_SELECTOR, indexh );
indexv = updateSlides( VERTICAL_SLIDES_SELECTOR, indexv );
// Update progress if enabled
if( config.progress ) {
dom.progress.value = indexh;
}
updateControls();
writeURL();