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Merge pull request #2315 from dougalsutherland/slide-formats

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allow custom slide numbering functions
This commit is contained in:
Hakim El Hattab 2019-02-01 09:49:39 +01:00 committed by GitHub
commit d0337246f2
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1 changed files with 32 additions and 24 deletions
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56
js/reveal.js
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@ -3269,40 +3269,48 @@
* "h/v": horizontal / vertical slide number
* "c": flattened slide number
* "c/t": flattened slide number / total slides
*
* Alternatively, config.slideNumber can be a function returning a
* three-element array with arguments to formatSlideNumber().
*/
function updateSlideNumber() {
// Update slide number if enabled
if( config.slideNumber && dom.slideNumber ) {
var value = [];
var value;
var format = 'h.v';
// Check if a custom number format is available
if( typeof config.slideNumber === 'string' ) {
format = config.slideNumber;
}
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';
}
// 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';
}
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 );
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] );