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@@ -1,5 +1,5 @@
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/*!
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- * reveal.js 2.1 r32
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+ * reveal.js 2.1 r33
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* http://lab.hakim.se/reveal-js
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* MIT licensed
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*
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@@ -285,18 +285,6 @@ var Reveal = (function(){
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dom.progress.style.display = 'block';
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}
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- // Load the theme in the config, if it's not already loaded
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- if( config.theme && dom.theme ) {
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- var themeURL = dom.theme.getAttribute( 'href' );
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- var themeFinder = /[^\/]*?(?=\.css)/;
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- var themeName = themeURL.match(themeFinder)[0];
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-
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- if( config.theme !== themeName ) {
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- themeURL = themeURL.replace(themeFinder, config.theme);
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- dom.theme.setAttribute( 'href', themeURL );
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- }
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- }
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-
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if( config.transition !== 'default' ) {
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dom.wrapper.classList.add( config.transition );
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}
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@@ -306,12 +294,27 @@ var Reveal = (function(){
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document.addEventListener( 'mousewheel', onDocumentMouseScroll, false );
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}
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+ // 3D links
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if( config.rollingLinks ) {
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- // Add some 3D magic to our anchors
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linkify();
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}
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+
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+ // Load the theme in the config, if it's not already loaded
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+ if( config.theme && dom.theme ) {
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+ var themeURL = dom.theme.getAttribute( 'href' );
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+ var themeFinder = /[^\/]*?(?=\.css)/;
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+ var themeName = themeURL.match(themeFinder)[0];
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+
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+ if( config.theme !== themeName ) {
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+ themeURL = themeURL.replace(themeFinder, config.theme);
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+ dom.theme.setAttribute( 'href', themeURL );
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+ }
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+ }
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}
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+ /**
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+ * Binds all event listeners.
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+ */
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function addEventListeners() {
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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@@ -330,6 +333,9 @@ var Reveal = (function(){
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}
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}
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+ /**
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+ * Unbinds all event listeners.
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+ */
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function removeEventListeners() {
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document.removeEventListener( 'keydown', onDocumentKeyDown, false );
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document.removeEventListener( 'touchstart', onDocumentTouchStart, false );
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@@ -403,210 +409,6 @@ var Reveal = (function(){
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extend( event, properties );
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dom.wrapper.dispatchEvent( event );
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}
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-
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- /**
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- * Handler for the document level 'keydown' event.
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- *
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- * @param {Object} event
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- */
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- function onDocumentKeyDown( event ) {
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- // Disregard the event if the target is editable or a
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- // modifier is present
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- if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
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-
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- var triggered = true;
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-
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- switch( event.keyCode ) {
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- // p, page up
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- case 80: case 33: navigatePrev(); break;
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- // n, page down
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- case 78: case 34: navigateNext(); break;
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- // h, left
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- case 72: case 37: navigateLeft(); break;
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- // l, right
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- case 76: case 39: navigateRight(); break;
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- // k, up
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- case 75: case 38: navigateUp(); break;
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- // j, down
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- case 74: case 40: navigateDown(); break;
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- // home
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- case 36: navigateTo( 0 ); break;
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- // end
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- case 35: navigateTo( Number.MAX_VALUE ); break;
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- // space
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- case 32: isOverviewActive() ? deactivateOverview() : navigateNext(); break;
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- // return
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- case 13: isOverviewActive() ? deactivateOverview() : triggered = false; break;
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- // b, period
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- case 66: case 190: togglePause(); break;
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- // f
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- case 70: enterFullscreen(); break;
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- default:
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- triggered = false;
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- }
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-
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- // If the input resulted in a triggered action we should prevent
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- // the browsers default behavior
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- if( triggered ) {
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- event.preventDefault();
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- }
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- else if ( event.keyCode === 27 && supports3DTransforms ) {
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- toggleOverview();
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-
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- event.preventDefault();
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- }
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-
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- // If auto-sliding is enabled we need to cue up
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- // another timeout
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- cueAutoSlide();
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-
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- }
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-
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- /**
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- * Handler for the document level 'touchstart' event,
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- * enables support for swipe and pinch gestures.
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- */
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- function onDocumentTouchStart( event ) {
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- touch.startX = event.touches[0].clientX;
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- touch.startY = event.touches[0].clientY;
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- touch.startCount = event.touches.length;
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-
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- // If there's two touches we need to memorize the distance
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- // between those two points to detect pinching
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- if( event.touches.length === 2 && config.overview ) {
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- touch.startSpan = distanceBetween( {
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- x: event.touches[1].clientX,
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- y: event.touches[1].clientY
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- }, {
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- x: touch.startX,
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- y: touch.startY
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- } );
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- }
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- }
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-
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- /**
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- * Handler for the document level 'touchmove' event.
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- */
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- function onDocumentTouchMove( event ) {
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- // Each touch should only trigger one action
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- if( !touch.handled ) {
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- var currentX = event.touches[0].clientX;
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- var currentY = event.touches[0].clientY;
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-
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- // If the touch started off with two points and still has
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- // two active touches; test for the pinch gesture
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- if( event.touches.length === 2 && touch.startCount === 2 && config.overview ) {
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-
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- // The current distance in pixels between the two touch points
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- var currentSpan = distanceBetween( {
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- x: event.touches[1].clientX,
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- y: event.touches[1].clientY
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- }, {
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- x: touch.startX,
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- y: touch.startY
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- } );
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-
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- // If the span is larger than the desire amount we've got
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- // ourselves a pinch
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- if( Math.abs( touch.startSpan - currentSpan ) > touch.threshold ) {
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- touch.handled = true;
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-
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- if( currentSpan < touch.startSpan ) {
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- activateOverview();
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- }
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- else {
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- deactivateOverview();
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- }
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- }
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-
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- event.preventDefault();
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-
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- }
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- // There was only one touch point, look for a swipe
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- else if( event.touches.length === 1 && touch.startCount !== 2 ) {
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-
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- var deltaX = currentX - touch.startX,
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- deltaY = currentY - touch.startY;
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-
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- if( deltaX > touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
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- touch.handled = true;
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- navigateLeft();
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- }
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- else if( deltaX < -touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
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- touch.handled = true;
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- navigateRight();
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- }
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- else if( deltaY > touch.threshold ) {
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- touch.handled = true;
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- navigateUp();
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- }
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- else if( deltaY < -touch.threshold ) {
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- touch.handled = true;
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- navigateDown();
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- }
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-
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- event.preventDefault();
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-
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- }
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- }
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- // There's a bug with swiping on some Android devices unless
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- // the default action is always prevented
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- else if( navigator.userAgent.match( /android/gi ) ) {
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- event.preventDefault();
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- }
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- }
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-
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- /**
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- * Handler for the document level 'touchend' event.
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- */
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- function onDocumentTouchEnd( event ) {
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- touch.handled = false;
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- }
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-
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- /**
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- * Handles mouse wheel scrolling, throttled to avoid
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- * skipping multiple slides.
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- */
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- function onDocumentMouseScroll( event ){
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- clearTimeout( mouseWheelTimeout );
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-
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- mouseWheelTimeout = setTimeout( function() {
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- var delta = event.detail || -event.wheelDelta;
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- if( delta > 0 ) {
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- navigateNext();
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- }
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- else {
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- navigatePrev();
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- }
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- }, 100 );
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- }
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-
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- /**
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- * Handler for the window level 'hashchange' event.
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- *
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- * @param {Object} event
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- */
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- function onWindowHashChange( event ) {
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- readURL();
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- }
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-
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- /**
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- * Invoked when a slide is and we're in the overview.
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- */
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- function onOverviewSlideClicked( event ) {
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- // TODO There's a bug here where the event listeners are not
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- // removed after deactivating the overview.
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- if( isOverviewActive() ) {
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- event.preventDefault();
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-
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- deactivateOverview();
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-
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- indexh = this.getAttribute( 'data-index-h' );
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- indexv = this.getAttribute( 'data-index-v' );
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-
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- slide();
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- }
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- }
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/**
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* Wrap all links in 3D goodness.
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@@ -795,109 +597,14 @@ var Reveal = (function(){
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function isPaused() {
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return dom.wrapper.classList.contains( 'paused' );
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}
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-
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+
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/**
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- * Updates one dimension of slides by showing the slide
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- * with the specified index.
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- *
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- * @param {String} selector A CSS selector that will fetch
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- * the group of slides we are working with
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- * @param {Number} index The index of the slide that should be
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- * shown
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- *
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- * @return {Number} The index of the slide that is now shown,
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- * might differ from the passed in index if it was out of
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- * bounds.
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- */
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- function updateSlides( selector, index ) {
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- // Select all slides and convert the NodeList result to
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- // an array
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- var slides = Array.prototype.slice.call( document.querySelectorAll( selector ) ),
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- slidesLength = slides.length;
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-
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- if( slidesLength ) {
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-
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- // Should the index loop?
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- if( config.loop ) {
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- index %= slidesLength;
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-
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- if( index < 0 ) {
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- index = slidesLength + index;
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- }
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- }
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-
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- // Enforce max and minimum index bounds
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- index = Math.max( Math.min( index, slidesLength - 1 ), 0 );
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-
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- for( var i = 0; i < slidesLength; i++ ) {
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- var slide = slides[i];
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-
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- // Optimization; hide all slides that are three or more steps
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- // away from the present slide
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- if( isOverviewActive() === false ) {
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- // The distance loops so that it measures 1 between the first
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- // and last slides
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- var distance = Math.abs( ( index - i ) % ( slidesLength - 3 ) ) || 0;
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-
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- slide.style.display = distance > 3 ? 'none' : 'block';
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- }
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-
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- slides[i].classList.remove( 'past' );
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- slides[i].classList.remove( 'present' );
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- slides[i].classList.remove( 'future' );
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-
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- if( i < index ) {
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- // Any element previous to index is given the 'past' class
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- slides[i].classList.add( 'past' );
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- }
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- else if( i > index ) {
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- // Any element subsequent to index is given the 'future' class
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- slides[i].classList.add( 'future' );
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- }
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-
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- // If this element contains vertical slides
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- if( slide.querySelector( 'section' ) ) {
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- slides[i].classList.add( 'stack' );
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- }
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- }
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-
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- // Mark the current slide as present
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- slides[index].classList.add( 'present' );
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-
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- // If this slide has a state associated with it, add it
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- // onto the current state of the deck
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- var slideState = slides[index].getAttribute( 'data-state' );
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- if( slideState ) {
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- state = state.concat( slideState.split( ' ' ) );
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- }
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-
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- // If this slide has a data-autoslide attribtue associated use this as
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- // autoSlide value otherwise use the global configured time
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- var slideAutoSlide = slides[index].getAttribute( 'data-autoslide' );
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- if( slideAutoSlide ) {
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- autoSlide = parseInt( slideAutoSlide );
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- } else {
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- autoSlide = config.autoSlide
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- }
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-
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- }
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- else {
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- // Since there are no slides we can't be anywhere beyond the
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- // zeroth index
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- index = 0;
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- }
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-
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- return index;
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-
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- }
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-
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- /**
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- * Steps from the current point in the presentation to the
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- * slide which matches the specified horizontal and vertical
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- * indices.
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- *
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- * @param {int} h Horizontal index of the target slide
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- * @param {int} v Vertical index of the target slide
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+ * Steps from the current point in the presentation to the
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+ * slide which matches the specified horizontal and vertical
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+ * indices.
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+ *
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+ * @param {int} h Horizontal index of the target slide
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+ * @param {int} v Vertical index of the target slide
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*/
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function slide( h, v ) {
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// Remember where we were at before
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|
@@ -986,26 +693,121 @@ var Reveal = (function(){
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}
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}
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|
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+ /**
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+ * Updates one dimension of slides by showing the slide
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+ * with the specified index.
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+ *
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+ * @param {String} selector A CSS selector that will fetch
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+ * the group of slides we are working with
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+ * @param {Number} index The index of the slide that should be
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+ * shown
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+ *
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+ * @return {Number} The index of the slide that is now shown,
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+ * might differ from the passed in index if it was out of
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+ * bounds.
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+ */
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+ function updateSlides( selector, index ) {
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+ // Select all slides and convert the NodeList result to
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+ // an array
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+ var slides = Array.prototype.slice.call( document.querySelectorAll( selector ) ),
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+ slidesLength = slides.length;
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+
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+ if( slidesLength ) {
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+
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+ // Should the index loop?
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+ if( config.loop ) {
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+ index %= slidesLength;
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+
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+ if( index < 0 ) {
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+ index = slidesLength + index;
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+ }
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+ }
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+
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+ // Enforce max and minimum index bounds
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+ index = Math.max( Math.min( index, slidesLength - 1 ), 0 );
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+
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+ for( var i = 0; i < slidesLength; i++ ) {
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+ var element = slides[i];
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+
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+ // Optimization; hide all slides that are three or more steps
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+ // away from the present slide
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+ if( isOverviewActive() === false ) {
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+ // The distance loops so that it measures 1 between the first
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+ // and last slides
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+ var distance = Math.abs( ( index - i ) % ( slidesLength - 3 ) ) || 0;
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+
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+ element.style.display = distance > 3 ? 'none' : 'block';
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|
+ }
|
|
|
+
|
|
|
+ slides[i].classList.remove( 'past' );
|
|
|
+ slides[i].classList.remove( 'present' );
|
|
|
+ slides[i].classList.remove( 'future' );
|
|
|
+
|
|
|
+ if( i < index ) {
|
|
|
+ // Any element previous to index is given the 'past' class
|
|
|
+ slides[i].classList.add( 'past' );
|
|
|
+ }
|
|
|
+ else if( i > index ) {
|
|
|
+ // Any element subsequent to index is given the 'future' class
|
|
|
+ slides[i].classList.add( 'future' );
|
|
|
+ }
|
|
|
+
|
|
|
+ // If this element contains vertical slides
|
|
|
+ if( element.querySelector( 'section' ) ) {
|
|
|
+ slides[i].classList.add( 'stack' );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // Mark the current slide as present
|
|
|
+ slides[index].classList.add( 'present' );
|
|
|
+
|
|
|
+ // If this slide has a state associated with it, add it
|
|
|
+ // onto the current state of the deck
|
|
|
+ var slideState = slides[index].getAttribute( 'data-state' );
|
|
|
+ if( slideState ) {
|
|
|
+ state = state.concat( slideState.split( ' ' ) );
|
|
|
+ }
|
|
|
+
|
|
|
+ // If this slide has a data-autoslide attribtue associated use this as
|
|
|
+ // autoSlide value otherwise use the global configured time
|
|
|
+ var slideAutoSlide = slides[index].getAttribute( 'data-autoslide' );
|
|
|
+ if( slideAutoSlide ) {
|
|
|
+ autoSlide = parseInt( slideAutoSlide );
|
|
|
+ } else {
|
|
|
+ autoSlide = config.autoSlide
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ // Since there are no slides we can't be anywhere beyond the
|
|
|
+ // zeroth index
|
|
|
+ index = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ return index;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
/**
|
|
|
* Updates the state and link pointers of the controls.
|
|
|
*/
|
|
|
function updateControls() {
|
|
|
- if ( !config.controls || !dom.controls ) {
|
|
|
- return;
|
|
|
+ if ( config.controls && dom.controls ) {
|
|
|
+
|
|
|
+ var routes = availableRoutes();
|
|
|
+
|
|
|
+ // Remove the 'enabled' class from all directions
|
|
|
+ [ dom.controlsLeft, dom.controlsRight, dom.controlsUp, dom.controlsDown ].forEach( function( node ) {
|
|
|
+ node.classList.remove( 'enabled' );
|
|
|
+ } );
|
|
|
+
|
|
|
+ // Add the 'enabled' class to the available routes
|
|
|
+ if( routes.left ) dom.controlsLeft.classList.add( 'enabled' );
|
|
|
+ if( routes.right ) dom.controlsRight.classList.add( 'enabled' );
|
|
|
+ if( routes.up ) dom.controlsUp.classList.add( 'enabled' );
|
|
|
+ if( routes.down ) dom.controlsDown.classList.add( 'enabled' );
|
|
|
+
|
|
|
}
|
|
|
-
|
|
|
- var routes = availableRoutes();
|
|
|
-
|
|
|
- // Remove the 'enabled' class from all directions
|
|
|
- [ dom.controlsLeft, dom.controlsRight, dom.controlsUp, dom.controlsDown ].forEach( function( node ) {
|
|
|
- node.classList.remove( 'enabled' );
|
|
|
- } );
|
|
|
-
|
|
|
- // Add the 'enabled' class to the available routes
|
|
|
- if( routes.left ) dom.controlsLeft.classList.add( 'enabled' );
|
|
|
- if( routes.right ) dom.controlsRight.classList.add( 'enabled' );
|
|
|
- if( routes.up ) dom.controlsUp.classList.add( 'enabled' );
|
|
|
- if( routes.down ) dom.controlsDown.classList.add( 'enabled' );
|
|
|
}
|
|
|
|
|
|
/**
|
|
@@ -1039,16 +841,16 @@ var Reveal = (function(){
|
|
|
// assume that this is a named link
|
|
|
if( isNaN( parseInt( bits[0], 10 ) ) && name.length ) {
|
|
|
// Find the slide with the specified name
|
|
|
- var slide = document.querySelector( '#' + name );
|
|
|
+ var element = document.querySelector( '#' + name );
|
|
|
|
|
|
- if( slide ) {
|
|
|
+ if( element ) {
|
|
|
// Find the position of the named slide and navigate to it
|
|
|
- var indices = Reveal.getIndices( slide );
|
|
|
- navigateTo( indices.h, indices.v );
|
|
|
+ var indices = Reveal.getIndices( element );
|
|
|
+ slide( indices.h, indices.v );
|
|
|
}
|
|
|
// If the slide doesn't exist, navigate to the current slide
|
|
|
else {
|
|
|
- navigateTo( indexh, indexv );
|
|
|
+ slide( indexh, indexv );
|
|
|
}
|
|
|
}
|
|
|
else {
|
|
@@ -1056,7 +858,7 @@ var Reveal = (function(){
|
|
|
var h = parseInt( bits[0], 10 ) || 0,
|
|
|
v = parseInt( bits[1], 10 ) || 0;
|
|
|
|
|
|
- navigateTo( h, v );
|
|
|
+ slide( h, v );
|
|
|
}
|
|
|
}
|
|
|
|
|
@@ -1077,6 +879,41 @@ var Reveal = (function(){
|
|
|
}
|
|
|
}
|
|
|
|
|
|
+ /**
|
|
|
+ * Retrieves the h/v location of the current, or specified,
|
|
|
+ * slide.
|
|
|
+ *
|
|
|
+ * @param {HTMLElement} slide If specified, the returned
|
|
|
+ * index will be for this slide rather than the currently
|
|
|
+ * active one
|
|
|
+ *
|
|
|
+ * @return {Object} { h: <int>, v: <int> }
|
|
|
+ */
|
|
|
+ function getIndices( slide ) {
|
|
|
+ // By default, return the current indices
|
|
|
+ var h = indexh,
|
|
|
+ v = indexv;
|
|
|
+
|
|
|
+ // If a slide is specified, return the indices of that slide
|
|
|
+ if( slide ) {
|
|
|
+ var isVertical = !!slide.parentNode.nodeName.match( /section/gi );
|
|
|
+ var slideh = isVertical ? slide.parentNode : slide;
|
|
|
+
|
|
|
+ // Select all horizontal slides
|
|
|
+ var horizontalSlides = Array.prototype.slice.call( document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) );
|
|
|
+
|
|
|
+ // Now that we know which the horizontal slide is, get its index
|
|
|
+ h = Math.max( horizontalSlides.indexOf( slideh ), 0 );
|
|
|
+
|
|
|
+ // If this is a vertical slide, grab the vertical index
|
|
|
+ if( isVertical ) {
|
|
|
+ v = Math.max( Array.prototype.slice.call( slide.parentNode.children ).indexOf( slide ), 0 );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return { h: h, v: v };
|
|
|
+ }
|
|
|
+
|
|
|
/**
|
|
|
* Navigate to the next slide fragment.
|
|
|
*
|
|
@@ -1155,16 +992,6 @@ var Reveal = (function(){
|
|
|
}
|
|
|
}
|
|
|
|
|
|
- /**
|
|
|
- * Triggers a navigation to the specified indices.
|
|
|
- *
|
|
|
- * @param {Number} h The horizontal index of the slide to show
|
|
|
- * @param {Number} v The vertical index of the slide to show
|
|
|
- */
|
|
|
- function navigateTo( h, v ) {
|
|
|
- slide( h, v );
|
|
|
- }
|
|
|
-
|
|
|
function navigateLeft() {
|
|
|
// Prioritize hiding fragments
|
|
|
if( isOverviewActive() || previousFragment() === false ) {
|
|
@@ -1232,16 +1059,244 @@ var Reveal = (function(){
|
|
|
cueAutoSlide();
|
|
|
}
|
|
|
|
|
|
- // Expose some methods publicly
|
|
|
+
|
|
|
+ // --------------------------------------------------------------------//
|
|
|
+ // ----------------------------- EVENTS -------------------------------//
|
|
|
+ // --------------------------------------------------------------------//
|
|
|
+
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Handler for the document level 'keydown' event.
|
|
|
+ *
|
|
|
+ * @param {Object} event
|
|
|
+ */
|
|
|
+ function onDocumentKeyDown( event ) {
|
|
|
+ // Disregard the event if the target is editable or a
|
|
|
+ // modifier is present
|
|
|
+ if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
|
|
|
+
|
|
|
+ var triggered = true;
|
|
|
+
|
|
|
+ switch( event.keyCode ) {
|
|
|
+ // p, page up
|
|
|
+ case 80: case 33: navigatePrev(); break;
|
|
|
+ // n, page down
|
|
|
+ case 78: case 34: navigateNext(); break;
|
|
|
+ // h, left
|
|
|
+ case 72: case 37: navigateLeft(); break;
|
|
|
+ // l, right
|
|
|
+ case 76: case 39: navigateRight(); break;
|
|
|
+ // k, up
|
|
|
+ case 75: case 38: navigateUp(); break;
|
|
|
+ // j, down
|
|
|
+ case 74: case 40: navigateDown(); break;
|
|
|
+ // home
|
|
|
+ case 36: slide( 0 ); break;
|
|
|
+ // end
|
|
|
+ case 35: slide( Number.MAX_VALUE ); break;
|
|
|
+ // space
|
|
|
+ case 32: isOverviewActive() ? deactivateOverview() : navigateNext(); break;
|
|
|
+ // return
|
|
|
+ case 13: isOverviewActive() ? deactivateOverview() : triggered = false; break;
|
|
|
+ // b, period
|
|
|
+ case 66: case 190: togglePause(); break;
|
|
|
+ // f
|
|
|
+ case 70: enterFullscreen(); break;
|
|
|
+ default:
|
|
|
+ triggered = false;
|
|
|
+ }
|
|
|
+
|
|
|
+ // If the input resulted in a triggered action we should prevent
|
|
|
+ // the browsers default behavior
|
|
|
+ if( triggered ) {
|
|
|
+ event.preventDefault();
|
|
|
+ }
|
|
|
+ else if ( event.keyCode === 27 && supports3DTransforms ) {
|
|
|
+ toggleOverview();
|
|
|
+
|
|
|
+ event.preventDefault();
|
|
|
+ }
|
|
|
+
|
|
|
+ // If auto-sliding is enabled we need to cue up
|
|
|
+ // another timeout
|
|
|
+ cueAutoSlide();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Handler for the document level 'touchstart' event,
|
|
|
+ * enables support for swipe and pinch gestures.
|
|
|
+ */
|
|
|
+ function onDocumentTouchStart( event ) {
|
|
|
+ touch.startX = event.touches[0].clientX;
|
|
|
+ touch.startY = event.touches[0].clientY;
|
|
|
+ touch.startCount = event.touches.length;
|
|
|
+
|
|
|
+ // If there's two touches we need to memorize the distance
|
|
|
+ // between those two points to detect pinching
|
|
|
+ if( event.touches.length === 2 && config.overview ) {
|
|
|
+ touch.startSpan = distanceBetween( {
|
|
|
+ x: event.touches[1].clientX,
|
|
|
+ y: event.touches[1].clientY
|
|
|
+ }, {
|
|
|
+ x: touch.startX,
|
|
|
+ y: touch.startY
|
|
|
+ } );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Handler for the document level 'touchmove' event.
|
|
|
+ */
|
|
|
+ function onDocumentTouchMove( event ) {
|
|
|
+ // Each touch should only trigger one action
|
|
|
+ if( !touch.handled ) {
|
|
|
+ var currentX = event.touches[0].clientX;
|
|
|
+ var currentY = event.touches[0].clientY;
|
|
|
+
|
|
|
+ // If the touch started off with two points and still has
|
|
|
+ // two active touches; test for the pinch gesture
|
|
|
+ if( event.touches.length === 2 && touch.startCount === 2 && config.overview ) {
|
|
|
+
|
|
|
+ // The current distance in pixels between the two touch points
|
|
|
+ var currentSpan = distanceBetween( {
|
|
|
+ x: event.touches[1].clientX,
|
|
|
+ y: event.touches[1].clientY
|
|
|
+ }, {
|
|
|
+ x: touch.startX,
|
|
|
+ y: touch.startY
|
|
|
+ } );
|
|
|
+
|
|
|
+ // If the span is larger than the desire amount we've got
|
|
|
+ // ourselves a pinch
|
|
|
+ if( Math.abs( touch.startSpan - currentSpan ) > touch.threshold ) {
|
|
|
+ touch.handled = true;
|
|
|
+
|
|
|
+ if( currentSpan < touch.startSpan ) {
|
|
|
+ activateOverview();
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ deactivateOverview();
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ event.preventDefault();
|
|
|
+
|
|
|
+ }
|
|
|
+ // There was only one touch point, look for a swipe
|
|
|
+ else if( event.touches.length === 1 && touch.startCount !== 2 ) {
|
|
|
+
|
|
|
+ var deltaX = currentX - touch.startX,
|
|
|
+ deltaY = currentY - touch.startY;
|
|
|
+
|
|
|
+ if( deltaX > touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
|
|
|
+ touch.handled = true;
|
|
|
+ navigateLeft();
|
|
|
+ }
|
|
|
+ else if( deltaX < -touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
|
|
|
+ touch.handled = true;
|
|
|
+ navigateRight();
|
|
|
+ }
|
|
|
+ else if( deltaY > touch.threshold ) {
|
|
|
+ touch.handled = true;
|
|
|
+ navigateUp();
|
|
|
+ }
|
|
|
+ else if( deltaY < -touch.threshold ) {
|
|
|
+ touch.handled = true;
|
|
|
+ navigateDown();
|
|
|
+ }
|
|
|
+
|
|
|
+ event.preventDefault();
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+ // There's a bug with swiping on some Android devices unless
|
|
|
+ // the default action is always prevented
|
|
|
+ else if( navigator.userAgent.match( /android/gi ) ) {
|
|
|
+ event.preventDefault();
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Handler for the document level 'touchend' event.
|
|
|
+ */
|
|
|
+ function onDocumentTouchEnd( event ) {
|
|
|
+ touch.handled = false;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Handles mouse wheel scrolling, throttled to avoid
|
|
|
+ * skipping multiple slides.
|
|
|
+ */
|
|
|
+ function onDocumentMouseScroll( event ){
|
|
|
+ clearTimeout( mouseWheelTimeout );
|
|
|
+
|
|
|
+ mouseWheelTimeout = setTimeout( function() {
|
|
|
+ var delta = event.detail || -event.wheelDelta;
|
|
|
+ if( delta > 0 ) {
|
|
|
+ navigateNext();
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ navigatePrev();
|
|
|
+ }
|
|
|
+ }, 100 );
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Handler for the window level 'hashchange' event.
|
|
|
+ *
|
|
|
+ * @param {Object} event
|
|
|
+ */
|
|
|
+ function onWindowHashChange( event ) {
|
|
|
+ readURL();
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Invoked when a slide is and we're in the overview.
|
|
|
+ */
|
|
|
+ function onOverviewSlideClicked( event ) {
|
|
|
+ // TODO There's a bug here where the event listeners are not
|
|
|
+ // removed after deactivating the overview.
|
|
|
+ if( isOverviewActive() ) {
|
|
|
+ event.preventDefault();
|
|
|
+
|
|
|
+ deactivateOverview();
|
|
|
+
|
|
|
+ indexh = this.getAttribute( 'data-index-h' );
|
|
|
+ indexv = this.getAttribute( 'data-index-v' );
|
|
|
+
|
|
|
+ slide();
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ // --------------------------------------------------------------------//
|
|
|
+ // ------------------------------- API --------------------------------//
|
|
|
+ // --------------------------------------------------------------------//
|
|
|
+
|
|
|
+
|
|
|
return {
|
|
|
initialize: initialize,
|
|
|
- navigateTo: navigateTo,
|
|
|
+
|
|
|
+ // Navigation methods
|
|
|
+ slide: slide,
|
|
|
+ left: navigateLeft,
|
|
|
+ right: navigateRight,
|
|
|
+ up: navigateUp,
|
|
|
+ down: navigateDown,
|
|
|
+ prev: navigatePrev,
|
|
|
+ next: navigateNext,
|
|
|
+
|
|
|
+ // Deprecated aliases
|
|
|
+ navigateTo: slide,
|
|
|
navigateLeft: navigateLeft,
|
|
|
navigateRight: navigateRight,
|
|
|
navigateUp: navigateUp,
|
|
|
navigateDown: navigateDown,
|
|
|
navigatePrev: navigatePrev,
|
|
|
navigateNext: navigateNext,
|
|
|
+
|
|
|
+ // Toggles the overview mode on/off
|
|
|
toggleOverview: toggleOverview,
|
|
|
|
|
|
// Adds or removes all internal event listeners (such as keyboard)
|
|
@@ -1249,30 +1304,7 @@ var Reveal = (function(){
|
|
|
removeEventListeners: removeEventListeners,
|
|
|
|
|
|
// Returns the indices of the current, or specified, slide
|
|
|
- getIndices: function( slide ) {
|
|
|
- // By default, return the current indices
|
|
|
- var h = indexh,
|
|
|
- v = indexv;
|
|
|
-
|
|
|
- // If a slide is specified, return the indices of that slide
|
|
|
- if( slide ) {
|
|
|
- var isVertical = !!slide.parentNode.nodeName.match( /section/gi );
|
|
|
- var slideh = isVertical ? slide.parentNode : slide;
|
|
|
-
|
|
|
- // Select all horizontal slides
|
|
|
- var horizontalSlides = Array.prototype.slice.call( document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) );
|
|
|
-
|
|
|
- // Now that we know which the horizontal slide is, get its index
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- h = Math.max( horizontalSlides.indexOf( slideh ), 0 );
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-
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- // If this is a vertical slide, grab the vertical index
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- if( isVertical ) {
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|
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- v = Math.max( Array.prototype.slice.call( slide.parentNode.children ).indexOf( slide ), 0 );
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- }
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- }
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-
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- return { h: h, v: v };
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- },
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+ getIndices: getIndices,
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// Returns the previous slide element, may be null
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getPreviousSlide: function() {
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