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add override flag to overview toggle, code cleanup

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This commit is contained in:
Hakim El Hattab 2012-10-04 08:56:43 -04:00
parent b0cc9fee45
commit 7d5c8b550d
2 changed files with 98 additions and 84 deletions
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126
js/reveal.js
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@ -1,5 +1,5 @@
/*!
* reveal.js 2.1 r26
* reveal.js 2.1 r27
* http://lab.hakim.se/reveal-js
* MIT licensed
*
@ -171,7 +171,7 @@ var Reveal = (function(){
// Extension may contain callback functions
if( typeof s.callback === 'function' ) {
head.ready( s.src.match( /([\w\d_-]*)\.?[^\\\/]*$/i )[0], s.callback );
head.ready( s.src.match( /([\w\d_\-]*)\.?[^\\\/]*$/i )[0], s.callback );
}
}
}
@ -232,8 +232,9 @@ var Reveal = (function(){
// Load the theme in the config, if it's not already loaded
if( config.theme && dom.theme ) {
var themeURL = dom.theme.getAttribute( 'href' );
var themeFinder = /[^/]*?(?=\.css)/;
var themeFinder = /[^\/]*?(?=\.css)/;
var themeName = themeURL.match(themeFinder)[0];
if( config.theme !== themeName ) {
themeURL = themeURL.replace(themeFinder, config.theme);
dom.theme.setAttribute( 'href', themeURL );
@ -335,6 +336,17 @@ var Reveal = (function(){
window.scrollTo( 0, 1 );
}, 0 );
}
/**
* Dispatches an event of the specified type from the
* reveal DOM element.
*/
function dispatchEvent( type, properties ) {
var event = document.createEvent( "HTMLEvents", 1, 2 );
event.initEvent( type, true, true );
extend( event, properties );
dom.wrapper.dispatchEvent( event );
}
/**
* Handler for the document level 'keydown' event.
@ -345,30 +357,32 @@ var Reveal = (function(){
// Disregard the event if the target is editable or a
// modifier is present
if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
var triggered = false;
var triggered = true;
switch( event.keyCode ) {
// p, page up
case 80: case 33: navigatePrev(); triggered = true; break;
case 80: case 33: navigatePrev(); break;
// n, page down
case 78: case 34: navigateNext(); triggered = true; break;
case 78: case 34: navigateNext(); break;
// h, left
case 72: case 37: navigateLeft(); triggered = true; break;
case 72: case 37: navigateLeft(); break;
// l, right
case 76: case 39: navigateRight(); triggered = true; break;
case 76: case 39: navigateRight(); break;
// k, up
case 75: case 38: navigateUp(); triggered = true; break;
case 75: case 38: navigateUp(); break;
// j, down
case 74: case 40: navigateDown(); triggered = true; break;
case 74: case 40: navigateDown(); break;
// home
case 36: navigateTo( 0 ); triggered = true; break;
case 36: navigateTo( 0 ); break;
// end
case 35: navigateTo( Number.MAX_VALUE ); triggered = true; break;
case 35: navigateTo( Number.MAX_VALUE ); break;
// space
case 32: overviewIsActive() ? deactivateOverview() : navigateNext(); triggered = true; break;
case 32: overviewIsActive() ? deactivateOverview() : navigateNext(); break;
// return
case 13: if( overviewIsActive() ) { deactivateOverview(); triggered = true; } break;
case 13: overviewIsActive() ? deactivateOverview() : triggered = false; break;
default:
triggered = false;
}
// If the input resulted in a triggered action we should prevent
@ -507,6 +521,24 @@ var Reveal = (function(){
readURL();
}
/**
* Invoked when a slide is and we're in the overview.
*/
function onOverviewSlideClicked( event ) {
// TODO There's a bug here where the event listeners are not
// removed after deactivating the overview.
if( overviewIsActive() ) {
event.preventDefault();
deactivateOverview();
indexh = this.getAttribute( 'data-index-h' );
indexv = this.getAttribute( 'data-index-v' );
slide();
}
}
/**
* Wrap all links in 3D goodness.
*/
@ -625,24 +657,6 @@ var Reveal = (function(){
return dom.wrapper.classList.contains( 'overview' );
}
/**
* Invoked when a slide is and we're in the overview.
*/
function onOverviewSlideClicked( event ) {
// TODO There's a bug here where the event listeners are not
// removed after deactivating the overview.
if( overviewIsActive() ) {
event.preventDefault();
deactivateOverview();
indexh = this.getAttribute( 'data-index-h' );
indexv = this.getAttribute( 'data-index-v' );
slide();
}
}
/**
* Updates one dimension of slides by showing the slide
* with the specified index.
@ -730,8 +744,12 @@ var Reveal = (function(){
}
/**
* Updates the visual slides to represent the currently
* set indices.
* Steps from the current point in the presentation to the
* slide which matches the specified horizontal and vertical
* indices.
*
* @param {int} h Horizontal index of the target slide
* @param {int} v Vertical index of the target slide
*/
function slide( h, v ) {
// Remember where we were at before
@ -777,7 +795,7 @@ var Reveal = (function(){
dom.progressbar.style.width = ( indexh / ( document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ).length - 1 ) ) * window.innerWidth + 'px';
}
// Close the overview if it's active
// If the overview is active, re-activate it to update positions
if( overviewIsActive() ) {
activateOverview();
}
@ -848,8 +866,8 @@ var Reveal = (function(){
* @return {Object} containing four booleans: left/right/up/down
*/
function availableRoutes() {
var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR );
var verticalSlides = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR );
var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ),
verticalSlides = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR );
return {
left: indexh > 0,
@ -871,7 +889,7 @@ var Reveal = (function(){
// If the first bit is invalid and there is a name we can
// assume that this is a named link
if( isNaN( parseInt( bits[0] ) ) && name.length ) {
if( isNaN( parseInt( bits[0], 10 ) ) && name.length ) {
// Find the slide with the specified name
var slide = document.querySelector( '#' + name );
@ -887,8 +905,8 @@ var Reveal = (function(){
}
else {
// Read the index components of the hash
var h = parseInt( bits[0] ) || 0,
v = parseInt( bits[1] ) || 0;
var h = parseInt( bits[0], 10 ) || 0,
v = parseInt( bits[1], 10 ) || 0;
navigateTo( h, v );
}
@ -911,17 +929,6 @@ var Reveal = (function(){
}
}
/**
* Dispatches an event of the specified type from the
* reveal DOM element.
*/
function dispatchEvent( type, properties ) {
var event = document.createEvent( "HTMLEvents", 1, 2 );
event.initEvent( type, true, true );
extend( event, properties );
dom.wrapper.dispatchEvent( event );
}
/**
* Navigate to the next slide fragment.
*
@ -1016,18 +1023,21 @@ var Reveal = (function(){
slide( indexh - 1, 0 );
}
}
function navigateRight() {
// Prioritize revealing fragments
if( overviewIsActive() || nextFragment() === false ) {
slide( indexh + 1, 0 );
}
}
function navigateUp() {
// Prioritize hiding fragments
if( overviewIsActive() || previousFragment() === false ) {
slide( indexh, indexv - 1 );
}
}
function navigateDown() {
// Prioritize revealing fragments
if( overviewIsActive() || nextFragment() === false ) {
@ -1076,13 +1086,17 @@ var Reveal = (function(){
/**
* Toggles the slide overview mode on and off.
*
* @param {Boolean} override Optional flag which overrides the
* toggle logic and forcibly sets the desired state. True means
* overview is open, false means it's closed.
*/
function toggleOverview() {
if( overviewIsActive() ) {
deactivateOverview();
function toggleOverview( override ) {
if( typeof override === 'boolean' ) {
override ? activateOverview() : deactivateOverview();
}
else {
activateOverview();
overviewIsActive() ? deactivateOverview() : activateOverview();
}
}

56
js/reveal.min.js vendored
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