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honor slide number config in pdf mode

edit
Dougal J. Sutherland 2019-03-02 09:21:29 -08:00
parent 1cf5ffe029
commit c189a21efd
2 changed files with 64 additions and 61 deletions
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4
README.md
View File

@ -1011,9 +1011,9 @@ Reveal.configure({ slideNumber: true });
Reveal.configure({ slideNumber: 'c/t' });
// You can provide a function to fully customize the number:
Reveal.configure({ slideNumber: function() {
Reveal.configure({ slideNumber: function( slide ) {
// Ignore numbering of vertical slides
return [ Reveal.getIndices().h ];
return [ Reveal.getIndices( slide ).h ];
}});
// Control which views the slide number displays on using the "showSlideNumber" value:

121
js/reveal.js
View File

@ -77,9 +77,9 @@
// - "c/t": Flattened slide number / total slides
//
// Alternatively, you can provide a function that returns the slide
// number for the current slide. The function needs to return an array
// with one string [slideNumber] or three strings [n1,delimiter,n2].
// See #formatSlideNumber().
// number for the current slide. The function should take in a slide
// object and return an array with one string [slideNumber] or
// three strings [n1,delimiter,n2]. See #formatSlideNumber().
slideNumber: false,
// Can be used to limit the contexts in which the slide number appears
@ -850,17 +850,10 @@
// Make sure stretch elements fit on slide
layoutSlideContents( slideWidth, slideHeight );
// Add each slide's index as attributes on itself, we need these
// indices to generate slide numbers below
toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( hslide, h ) {
hslide.setAttribute( 'data-index-h', h );
if( hslide.classList.contains( 'stack' ) ) {
toArray( hslide.querySelectorAll( 'section' ) ).forEach( function( vslide, v ) {
vslide.setAttribute( 'data-index-h', h );
vslide.setAttribute( 'data-index-v', v );
} );
}
// Compute slide numbers now, before we start duplicating slides
var doingSlideNumbers = config.slideNumber && /all|print/i.test( config.showSlideNumber );
toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) {
slide.setAttribute( 'data-slide-number', getSlideNumber( slide ) );
} );
// Slide and slide background layout
@ -931,14 +924,11 @@
}
// Inject slide numbers if `slideNumbers` are enabled
if( config.slideNumber && /all|print/i.test( config.showSlideNumber ) ) {
var slideNumberH = parseInt( slide.getAttribute( 'data-index-h' ), 10 ) + 1,
slideNumberV = parseInt( slide.getAttribute( 'data-index-v' ), 10 ) + 1;
if( doingSlideNumbers ) {
var numberElement = document.createElement( 'div' );
numberElement.classList.add( 'slide-number' );
numberElement.classList.add( 'slide-number-pdf' );
numberElement.innerHTML = formatSlideNumber( slideNumberH, '.', slideNumberV );
numberElement.innerHTML = slide.getAttribute( 'data-slide-number' );
page.appendChild( numberElement );
}
@ -3425,48 +3415,58 @@
// Update slide number if enabled
if( config.slideNumber && dom.slideNumber ) {
var value;
var format = 'h.v';
if( typeof config.slideNumber === 'function' ) {
value = config.slideNumber();
}
else {
// Check if a custom number format is available
if( typeof config.slideNumber === 'string' ) {
format = config.slideNumber;
}
// If there are ONLY vertical slides in this deck, always use
// a flattened slide number
if( !/c/.test( format ) && dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ).length === 1 ) {
format = 'c';
}
value = [];
switch( format ) {
case 'c':
value.push( getSlidePastCount() + 1 );
break;
case 'c/t':
value.push( getSlidePastCount() + 1, '/', getTotalSlides() );
break;
case 'h/v':
value.push( indexh + 1 );
if( isVerticalSlide() ) value.push( '/', indexv + 1 );
break;
default:
value.push( indexh + 1 );
if( isVerticalSlide() ) value.push( '.', indexv + 1 );
}
}
dom.slideNumber.innerHTML = formatSlideNumber( value[0], value[1], value[2] );
dom.slideNumber.innerHTML = getSlideNumber();
}
}
/**
* Returns the HTML string corresponding to the current slide number,
* including formatting.
*/
function getSlideNumber( slide ) {
var value;
var format = 'h.v';
if( slide === undefined ) {
slide = currentSlide;
}
if ( typeof config.slideNumber === 'function' ) {
value = config.slideNumber( slide );
} else {
// Check if a custom number format is available
if( typeof config.slideNumber === 'string' ) {
format = config.slideNumber;
}
// If there are ONLY vertical slides in this deck, always use
// a flattened slide number
if( !/c/.test( format ) && dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ).length === 1 ) {
format = 'c';
}
value = [];
switch( format ) {
case 'c':
value.push( getSlidePastCount( slide ) + 1 );
break;
case 'c/t':
value.push( getSlidePastCount( slide ) + 1, '/', getTotalSlides() );
break;
default:
var indices = getIndices( slide );
value.push( indices.h + 1 );
var sep = format === 'h/v' ? '/' : '.';
if( isVerticalSlide( slide ) ) value.push( sep, indices.v + 1 );
}
}
var url = '#' + locationHash( slide );
return formatSlideNumber( value[0], value[1], value[2], url );
}
/**
* Applies HTML formatting to a slide number before it's
* written to the DOM.
@ -3474,11 +3474,14 @@
* @param {number} a Current slide
* @param {string} delimiter Character to separate slide numbers
* @param {(number|*)} b Total slides
* @param {HTMLElement} [url='#'+locationHash()] The url to link to
* @return {string} HTML string fragment
*/
function formatSlideNumber( a, delimiter, b ) {
function formatSlideNumber( a, delimiter, b, url ) {
var url = '#' + locationHash();
if( url === undefined ) {
url = '#' + locationHash();
}
if( typeof b === 'number' && !isNaN( b ) ) {
return '<a href="' + url + '">' +
'<span class="slide-number-a">'+ a +'</span>' +