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working on #227

edit
Federico Fissore 2012-11-05 16:38:24 +01:00
parent f51067b00e
commit 6ffa60f5d2
2 changed files with 81 additions and 28 deletions
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2
README.md
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@ -125,7 +125,7 @@ The Reveal class provides a minimal JavaScript API for controlling navigation an
```javascript
// Navigation
Reveal.slide( indexh, indexv );
Reveal.slide( indexh, indexv, indexf );
Reveal.left();
Reveal.right();
Reveal.up();

103
js/reveal.js
View File

@ -61,6 +61,9 @@ var Reveal = (function(){
indexh = 0,
indexv = 0,
// the fragment index
indexf = 0,
// The previous and current slide HTML elements
previousSlide,
currentSlide,
@ -626,7 +629,7 @@ var Reveal = (function(){
* @param {int} h Horizontal index of the target slide
* @param {int} v Vertical index of the target slide
*/
function slide( h, v ) {
function slide( h, v, f) {
// Remember where we were at before
previousSlide = currentSlide;
@ -643,6 +646,24 @@ var Reveal = (function(){
indexh = updateSlides( HORIZONTAL_SLIDES_SELECTOR, h === undefined ? indexh : h );
indexv = updateSlides( VERTICAL_SLIDES_SELECTOR, v === undefined ? indexv : v );
// Show fragment, if specified
if ( typeof f !== undefined ) {
// Hide all fragments in current slide
while ( previousFragment() ) {
// loop
}
if ( f !== 0 ) {
var fragmentIndex = 0;
while ( indexf < f && nextFragment() ) {
fragmentIndex++;
}
// We cannot trust nextFragment for setting indexf: it can go beyond the max number of fragments available
indexf = fragmentIndex;
}
} else {
indexf = 0;
}
// Apply the new state
stateLoop: for( var i = 0, len = state.length; i < len; i++ ) {
// Check if this state existed on the previous slide. If it
@ -677,10 +698,7 @@ var Reveal = (function(){
updateControls();
// Update the URL hash after a delay since updating it mid-transition
// is likely to cause visual lag
clearTimeout( writeURLTimeout );
writeURLTimeout = setTimeout( writeURL, 1500 );
updateURL();
// Query all horizontal slides in the deck
var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR );
@ -855,9 +873,11 @@ var Reveal = (function(){
function readURL() {
var hash = window.location.hash;
var hashParts = hash.split( '?' );
// Attempt to parse the hash as either an index or name
var bits = hash.slice( 2 ).split( '/' ),
name = hash.replace( /#|\//gi, '' );
var bits = hashParts[0].slice( 2 ).split( '/' ),
name = hashParts[0].replace( /#|\//gi, '' );
// If the first bit is invalid and there is a name we can
// assume that this is a named link
@ -880,8 +900,20 @@ var Reveal = (function(){
var h = parseInt( bits[0], 10 ) || 0,
v = parseInt( bits[1], 10 ) || 0;
slide( h, v );
var f = 0;
if ( hashParts.length > 1 ) {
f = parseInt( hashParts[1] );
}
slide( h, v, f );
}
}
function updateURL () {
// Update the URL hash after a delay since updating it mid-transition
// is likely to cause visual lag
clearTimeout( writeURLTimeout );
writeURLTimeout = setTimeout( writeURL, 1500 );
}
/**
@ -896,6 +928,7 @@ var Reveal = (function(){
// the URL
if( indexh > 0 || indexv > 0 ) url += indexh;
if( indexv > 0 ) url += '/' + indexv;
if( indexf > 0 ) url += '?' + indexf;
window.location.hash = url;
}
@ -944,14 +977,15 @@ var Reveal = (function(){
*/
function nextFragment() {
// Vertical slides:
var fragment,
fragmentFound = false;
if( document.querySelector( VERTICAL_SLIDES_SELECTOR + '.present' ) ) {
var verticalFragments = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR + '.present .fragment:not(.visible)' );
if( verticalFragments.length ) {
verticalFragments[0].classList.add( 'visible' );
// Notify subscribers of the change
dispatchEvent( 'fragmentshown', { fragment: verticalFragments[0] } );
return true;
fragment = verticalFragments[0];
fragmentFound = true;
}
}
// Horizontal slides:
@ -959,14 +993,23 @@ var Reveal = (function(){
var horizontalFragments = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.present .fragment:not(.visible)' );
if( horizontalFragments.length ) {
horizontalFragments[0].classList.add( 'visible' );
fragment = horizontalFragments[0];
fragmentFound = true;
}
}
if ( fragmentFound ) {
indexf++;
// Notify subscribers of the change
dispatchEvent( 'fragmentshown', { fragment: horizontalFragments[0] } );
return true;
}
dispatchEvent( 'fragmentshown', { fragment: fragment, index: indexf } );
updateURL();
} else {
indexf = 0;
}
return false;
return fragmentFound;
}
/**
@ -976,15 +1019,16 @@ var Reveal = (function(){
* false otherwise
*/
function previousFragment() {
var fragment,
fragmentFound = false;
// Vertical slides:
if( document.querySelector( VERTICAL_SLIDES_SELECTOR + '.present' ) ) {
var verticalFragments = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR + '.present .fragment.visible' );
if( verticalFragments.length ) {
verticalFragments[ verticalFragments.length - 1 ].classList.remove( 'visible' );
// Notify subscribers of the change
dispatchEvent( 'fragmenthidden', { fragment: verticalFragments[ verticalFragments.length - 1 ] } );
return true;
fragment = verticalFragments[ verticalFragments.length - 1 ];
fragmentFound = true;
}
}
// Horizontal slides:
@ -992,14 +1036,23 @@ var Reveal = (function(){
var horizontalFragments = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.present .fragment.visible' );
if( horizontalFragments.length ) {
horizontalFragments[ horizontalFragments.length - 1 ].classList.remove( 'visible' );
fragment = horizontalFragments[ horizontalFragments.length - 1 ];
fragmentFound = true;
}
}
if ( fragmentFound ) {
indexf--;
// Notify subscribers of the change
dispatchEvent( 'fragmenthidden', { fragment: horizontalFragments[ horizontalFragments.length - 1 ] } );
return true;
}
dispatchEvent( 'fragmenthidden', { fragment: fragment, index: indexf } );
updateURL();
} else {
indexf = 0;
}
return false;
return fragmentFound;
}
/**
@ -1017,7 +1070,7 @@ var Reveal = (function(){
function navigateLeft() {
// Prioritize hiding fragments
if( availableRoutes().left && ( isOverviewActive() || previousFragment() === false ) ) {
slide( indexh - 1, 0 );
slide( indexh - 1, 0, Number.MAX_VALUE );
}
}