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support for custom slide number formatting #965

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This commit is contained in:
Hakim El Hattab 2015-01-16 13:48:13 +01:00
parent 817bb3bf43
commit 5fb81b1b3c
2 changed files with 28 additions and 5 deletions
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9
README.md
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@ -572,7 +572,16 @@ By default, Reveal is configured with [highlight.js](http://softwaremaniacs.org/
If you would like to display the page number of the current slide you can do so using the ```slideNumber``` configuration value. If you would like to display the page number of the current slide you can do so using the ```slideNumber``` configuration value.
```javascript ```javascript
// Shows the slide number using default formatting
Reveal.configure({ slideNumber: true }); Reveal.configure({ slideNumber: true });
// Slide number formatting can be configured using these variables:
// h: current slide's horizontal index
// v: current slide's vertical index
// c: current slide index (flattened)
// t: total number of slides (flattened)
Reveal.configure({ slideNumber: 'c / t' });
``` ```

24
js/reveal.js
View File

@ -2331,19 +2331,33 @@
/** /**
* Updates the slide number div to reflect the current slide. * Updates the slide number div to reflect the current slide.
*
* Slide number format can be defined as a string using the
* following variables:
* h: current slide's horizontal index
* v: current slide's vertical index
* c: current slide index (flattened)
* t: total number of slides (flattened)
*/ */
function updateSlideNumber() { function updateSlideNumber() {
// Update slide number if enabled // Update slide number if enabled
if( config.slideNumber && dom.slideNumber) { if( config.slideNumber && dom.slideNumber) {
// Display the number of the page using 'indexh - indexv' format // Default to only showing the current slide number
var indexString = indexh; var format = 'c';
if( indexv > 0 ) {
indexString += ' - ' + indexv; // Check if a custom slide number format is available
if( typeof config.slideNumber === 'string' ) {
format = config.slideNumber;
} }
dom.slideNumber.innerHTML = indexString; var totalSlides = getTotalSlides();
dom.slideNumber.innerHTML = format.replace( /h/g, indexh )
.replace( /v/g, indexv )
.replace( /c/g, Math.round( getProgress() * totalSlides ) + 1 )
.replace( /t/g, totalSlides + 1 );
} }
} }