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Merge pull request #2133 from sean-parent/master 

Adding support for hash linked slideNumber
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Hakim El Hattab 2018-04-16 09:31:05 +02:00 committed by GitHub
parent 397feab8b4 97c1a0ecc1
commit f713d9d67d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 52 additions and 33 deletions
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85
js/reveal.js
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@ -68,6 +68,10 @@
// Display the page number of the current slide // Display the page number of the current slide
slideNumber: false, slideNumber: false,
// Use 1 based indexing for # links to match slide number (default is zero
// based)
hashOneBasedIndex: false,
// Determine which displays to show the slide number on // Determine which displays to show the slide number on
showSlideNumber: 'all', showSlideNumber: 'all',
@ -2251,7 +2255,41 @@
return overview; return overview;
} }
/**
* Return a hash URL that will resolve to the current slide location.
*/
function locationHash() {
var url = '/';
// Attempt to create a named link based on the slide's ID
var id = currentSlide ? currentSlide.getAttribute( 'id' ) : null;
if( id ) {
id = encodeURIComponent( id );
}
var indexf;
if( config.fragmentInURL ) {
indexf = getIndices().f;
}
// If the current slide has an ID, use that as a named link,
// but we don't support named links with a fragment index
if( typeof id === 'string' && id.length && indexf === undefined ) {
url = '/' + id;
}
// Otherwise use the /h/v index
else {
if( indexh > 0 || indexv > 0 || indexf !== undefined ) url += indexh + config.hashOneBasedIndex;
if( indexv > 0 || indexf !== undefined ) url += '/' + (indexv + config.hashOneBasedIndex);
if( indexf !== undefined ) url += '/' + indexf;
}
return url;
}
/** /**
* Checks if the current or specified slide is vertical * Checks if the current or specified slide is vertical
* (nested within another slide). * (nested within another slide).
@ -2917,6 +2955,7 @@
} }
/** /**
* Updates the slide number div to reflect the current slide. * Updates the slide number div to reflect the current slide.
* *
@ -2970,14 +3009,18 @@
* @return {string} HTML string fragment * @return {string} HTML string fragment
*/ */
function formatSlideNumber( a, delimiter, b ) { function formatSlideNumber( a, delimiter, b ) {
var url = '#' + locationHash();
if( typeof b === 'number' && !isNaN( b ) ) { if( typeof b === 'number' && !isNaN( b ) ) {
return '<span class="slide-number-a">'+ a +'</span>' + return '<a href="' + url + '">' +
'<span class="slide-number-a">'+ a +'</span>' +
'<span class="slide-number-delimiter">'+ delimiter +'</span>' + '<span class="slide-number-delimiter">'+ delimiter +'</span>' +
'<span class="slide-number-b">'+ b +'</span>'; '<span class="slide-number-b">'+ b +'</span>' +
'</a>';
} }
else { else {
return '<span class="slide-number-a">'+ a +'</span>'; return '<a href="' + url + '">' +
'<span class="slide-number-a">'+ a +'</span>' +
'</a>';
} }
} }
@ -3796,8 +3839,9 @@
} }
else { else {
// Read the index components of the hash // Read the index components of the hash
var h = parseInt( bits[0], 10 ) || 0,
v = parseInt( bits[1], 10 ) || 0, var h = parseInt( bits[0], 10 ) || 0 - config.hashOneBasedIndex,
v = parseInt( bits[1], 10 ) || 0 - config.hashOneBasedIndex,
f; f;
if( config.fragmentInURL ) { if( config.fragmentInURL ) {
f = parseInt( bits[2], 10 ); f = parseInt( bits[2], 10 );
@ -3812,7 +3856,7 @@
} }
} }
/** /**
* Updates the page URL (hash) to reflect the current * Updates the page URL (hash) to reflect the current
* state. * state.
@ -3832,32 +3876,7 @@
writeURLTimeout = setTimeout( writeURL, delay ); writeURLTimeout = setTimeout( writeURL, delay );
} }
else if( currentSlide ) { else if( currentSlide ) {
var url = '/'; window.location.hash = locationHash();
// Attempt to create a named link based on the slide's ID
var id = currentSlide.getAttribute( 'id' );
if( id ) {
id = encodeURIComponent( id );
}
var indexf;
if( config.fragmentInURL ) {
indexf = getIndices().f;
}
// If the current slide has an ID, use that as a named link,
// but we don't support named links with a fragment index
if( typeof id === 'string' && id.length && indexf === undefined ) {
url = '/' + id;
}
// Otherwise use the /h/v index
else {
if( indexh > 0 || indexv > 0 || indexf !== undefined ) url += indexh;
if( indexv > 0 || indexf !== undefined ) url += '/' + indexv;
if( indexf !== undefined ) url += '/' + indexf;
}
window.location.hash = url;
} }
} }