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/location.js b/inst/reveal.js-4.1.2/js/controllers/location.js
new file mode 100644
index 0000000..42fff62
--- /dev/null
+++ b/inst/reveal.js-4.1.2/js/controllers/location.js
@@ -0,0 +1,209 @@
+/**
+ * Reads and writes the URL based on reveal.js' current state.
+ */
+export default class Location {
+
+ constructor( Reveal ) {
+
+ this.Reveal = Reveal;
+
+ // Delays updates to the URL due to a Chrome thumbnailer bug
+ this.writeURLTimeout = 0;
+
+ this.onWindowHashChange = this.onWindowHashChange.bind( this );
+
+ }
+
+ bind() {
+
+ window.addEventListener( 'hashchange', this.onWindowHashChange, false );
+
+ }
+
+ unbind() {
+
+ window.removeEventListener( 'hashchange', this.onWindowHashChange, false );
+
+ }
+
+ /**
+ * Reads the current URL (hash) and navigates accordingly.
+ */
+ readURL() {
+
+ let config = this.Reveal.getConfig();
+ let indices = this.Reveal.getIndices();
+ let currentSlide = this.Reveal.getCurrentSlide();
+
+ let hash = window.location.hash;
+
+ // Attempt to parse the hash as either an index or name
+ let bits = hash.slice( 2 ).split( '/' ),
+ name = hash.replace( /#\/?/gi, '' );
+
+ // If the first bit is not fully numeric and there is a name we
+ // can assume that this is a named link
+ if( !/^[0-9]*$/.test( bits[0] ) && name.length ) {
+ let element;
+
+ let f;
+
+ // Parse named links with fragments (#/named-link/2)
+ if( /\/[-\d]+$/g.test( name ) ) {
+ f = parseInt( name.split( '/' ).pop(), 10 );
+ f = isNaN(f) ? undefined : f;
+ name = name.split( '/' ).shift();
+ }
+
+ // Ensure the named link is a valid HTML ID attribute
+ try {
+ element = document.getElementById( decodeURIComponent( name ) );
+ }
+ catch ( error ) { }
+
+ // Ensure that we're not already on a slide with the same name
+ let isSameNameAsCurrentSlide = currentSlide ? currentSlide.getAttribute( 'id' ) === name : false;
+
+ if( element ) {
+ // If the slide exists and is not the current slide...
+ if ( !isSameNameAsCurrentSlide || typeof f !== 'undefined' ) {
+ // ...find the position of the named slide and navigate to it
+ let slideIndices = this.Reveal.getIndices( element );
+ this.Reveal.slide( slideIndices.h, slideIndices.v, f );
+ }
+ }
+ // If the slide doesn't exist, navigate to the current slide
+ else {
+ this.Reveal.slide( indices.h || 0, indices.v || 0 );
+ }
+ }
+ else {
+ let hashIndexBase = config.hashOneBasedIndex ? 1 : 0;
+
+ // Read the index components of the hash
+ let h = ( parseInt( bits[0], 10 ) - hashIndexBase ) || 0,
+ v = ( parseInt( bits[1], 10 ) - hashIndexBase ) || 0,
+ f;
+
+ if( config.fragmentInURL ) {
+ f = parseInt( bits[2], 10 );
+ if( isNaN( f ) ) {
+ f = undefined;
+ }
+ }
+
+ if( h !== indices.h || v !== indices.v || f !== undefined ) {
+ this.Reveal.slide( h, v, f );
+ }
+ }
+
+ }
+
+ /**
+ * Updates the page URL (hash) to reflect the current
+ * state.
+ *
+ * @param {number} delay The time in ms to wait before
+ * writing the hash
+ */
+ writeURL( delay ) {
+
+ let config = this.Reveal.getConfig();
+ let currentSlide = this.Reveal.getCurrentSlide();
+
+ // Make sure there's never more than one timeout running
+ clearTimeout( this.writeURLTimeout );
+
+ // If a delay is specified, timeout this call
+ if( typeof delay === 'number' ) {
+ this.writeURLTimeout = setTimeout( this.writeURL, delay );
+ }
+ else if( currentSlide ) {
+
+ let hash = this.getHash();
+
+ // If we're configured to push to history OR the history
+ // API is not avaialble.
+ if( config.history ) {
+ window.location.hash = hash;
+ }
+ // If we're configured to reflect the current slide in the
+ // URL without pushing to history.
+ else if( config.hash ) {
+ // If the hash is empty, don't add it to the URL
+ if( hash === '/' ) {
+ window.history.replaceState( null, null, window.location.pathname + window.location.search );
+ }
+ else {
+ window.history.replaceState( null, null, '#' + hash );
+ }
+ }
+ // UPDATE: The below nuking of all hash changes breaks
+ // anchors on pages where reveal.js is running. Removed
+ // in 4.0. Why was it here in the first place? ¯\_(ツ)_/¯
+ //
+ // If history and hash are both disabled, a hash may still
+ // be added to the URL by clicking on a href with a hash
+ // target. Counter this by always removing the hash.
+ // else {
+ // window.history.replaceState( null, null, window.location.pathname + window.location.search );
+ // }
+
+ }
+
+ }
+
+ /**
+ * Return a hash URL that will resolve to the given slide location.
+ *
+ * @param {HTMLElement} [slide=currentSlide] The slide to link to
+ */
+ getHash( slide ) {
+
+ let url = '/';
+
+ // Attempt to create a named link based on the slide's ID
+ let s = slide || this.Reveal.getCurrentSlide();
+ let id = s ? s.getAttribute( 'id' ) : null;
+ if( id ) {
+ id = encodeURIComponent( id );
+ }
+
+ let index = this.Reveal.getIndices( slide );
+ if( !this.Reveal.getConfig().fragmentInURL ) {
+ index.f = undefined;
+ }
+
+ // 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 ) {
+ url = '/' + id;
+
+ // If there is also a fragment, append that at the end
+ // of the named link, like: #/named-link/2
+ if( index.f >= 0 ) url += '/' + index.f;
+ }
+ // Otherwise use the /h/v index
+ else {
+ let hashIndexBase = this.Reveal.getConfig().hashOneBasedIndex ? 1 : 0;
+ if( index.h > 0 || index.v > 0 || index.f >= 0 ) url += index.h + hashIndexBase;
+ if( index.v > 0 || index.f >= 0 ) url += '/' + (index.v + hashIndexBase );
+ if( index.f >= 0 ) url += '/' + index.f;
+ }
+
+ return url;
+
+ }
+
+ /**
+ * Handler for the window level 'hashchange' event.
+ *
+ * @param {object} [event]
+ */
+ onWindowHashChange( event ) {
+
+ this.readURL();
+
+ }
+
+}
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