Update to reveal.js 4.1.2 (#136)
- New tools/ script to manually keep step for updates
- Plugins are all updated
- Template update following latest Pandoc version
- updated README for documentation
- Help page updated
- See other change in NEWS file
diff --git a/inst/reveal.js-4.1.2/js/controllers/slidenumber.js b/inst/reveal.js-4.1.2/js/controllers/slidenumber.js
new file mode 100644
index 0000000..ba124c0
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+++ b/inst/reveal.js-4.1.2/js/controllers/slidenumber.js
@@ -0,0 +1,126 @@
+/**
+ * Handles the display of reveal.js' optional slide number.
+ */
+export default class SlideNumber {
+
+ constructor( Reveal ) {
+
+ this.Reveal = Reveal;
+
+ }
+
+ render() {
+
+ this.element = document.createElement( 'div' );
+ this.element.className = 'slide-number';
+ this.Reveal.getRevealElement().appendChild( this.element );
+
+ }
+
+ /**
+ * Called when the reveal.js config is updated.
+ */
+ configure( config, oldConfig ) {
+
+ let slideNumberDisplay = 'none';
+ if( config.slideNumber && !this.Reveal.isPrintingPDF() ) {
+ if( config.showSlideNumber === 'all' ) {
+ slideNumberDisplay = 'block';
+ }
+ else if( config.showSlideNumber === 'speaker' && this.Reveal.isSpeakerNotes() ) {
+ slideNumberDisplay = 'block';
+ }
+ }
+
+ this.element.style.display = slideNumberDisplay;
+
+ }
+
+ /**
+ * Updates the slide number to match the current slide.
+ */
+ update() {
+
+ // Update slide number if enabled
+ if( this.Reveal.getConfig().slideNumber && this.element ) {
+ this.element.innerHTML = this.getSlideNumber();
+ }
+
+ }
+
+ /**
+ * Returns the HTML string corresponding to the current slide
+ * number, including formatting.
+ */
+ getSlideNumber( slide = this.Reveal.getCurrentSlide() ) {
+
+ let config = this.Reveal.getConfig();
+ let value;
+ let format = 'h.v';
+
+ 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 ) && this.Reveal.getHorizontalSlides().length === 1 ) {
+ format = 'c';
+ }
+
+ // Offset the current slide number by 1 to make it 1-indexed
+ let horizontalOffset = slide && slide.dataset.visibility === 'uncounted' ? 0 : 1;
+
+ value = [];
+ switch( format ) {
+ case 'c':
+ value.push( this.Reveal.getSlidePastCount( slide ) + horizontalOffset );
+ break;
+ case 'c/t':
+ value.push( this.Reveal.getSlidePastCount( slide ) + horizontalOffset, '/', this.Reveal.getTotalSlides() );
+ break;
+ default:
+ let indices = this.Reveal.getIndices( slide );
+ value.push( indices.h + horizontalOffset );
+ let sep = format === 'h/v' ? '/' : '.';
+ if( this.Reveal.isVerticalSlide( slide ) ) value.push( sep, indices.v + 1 );
+ }
+ }
+
+ let url = '#' + this.Reveal.location.getHash( slide );
+ return this.formatNumber( value[0], value[1], value[2], url );
+
+ }
+
+ /**
+ * Applies HTML formatting to a slide number before it's
+ * written to the DOM.
+ *
+ * @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
+ */
+ formatNumber( a, delimiter, b, url = '#' + this.Reveal.location.getHash() ) {
+
+ if( typeof b === 'number' && !isNaN( b ) ) {
+ return `<a href="${url}">
+ <span class="slide-number-a">${a}</span>
+ <span class="slide-number-delimiter">${delimiter}</span>
+ <span class="slide-number-b">${b}</span>
+ </a>`;
+ }
+ else {
+ return `<a href="${url}">
+ <span class="slide-number-a">${a}</span>
+ </a>`;
+ }
+
+ }
+
+}
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