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@@ -199,13 +199,13 @@
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},
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// Holds information about the keyboard shortcuts
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- keyboard_shortcuts = {
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- 'p': 'Previous slide',
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- 'n': 'Next slide',
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- 'h': 'Navigate left',
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- 'l': 'Navigate right',
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- 'k': 'Navigate up',
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- 'j': 'Navigate down',
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+ keyboardShortcuts = {
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+ 'P': 'Previous slide',
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+ 'N': 'Next slide',
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+ 'H': 'Navigate left',
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+ 'L': 'Navigate right',
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+ 'K': 'Navigate up',
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+ 'J': 'Navigate down',
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'Home': 'First slide',
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'End': 'Last slide',
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'b': 'Pause',
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@@ -1233,15 +1233,16 @@
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/**
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* Opens a preview window for the target URL.
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*/
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- function openPreview( url ) {
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+ function showPreview( url ) {
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- closePreview();
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+ closeOverlay();
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- dom.preview = document.createElement( 'div' );
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- dom.preview.classList.add( 'preview-link-overlay' );
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- dom.wrapper.appendChild( dom.preview );
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+ dom.overlay = document.createElement( 'div' );
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+ dom.overlay.classList.add( 'overlay' );
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+ dom.overlay.classList.add( 'overlay-preview' );
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+ dom.wrapper.appendChild( dom.overlay );
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- dom.preview.innerHTML = [
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+ dom.overlay.innerHTML = [
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'<header>',
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'<a class="close" href="#"><span class="icon"></span></a>',
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'<a class="external" href="'+ url +'" target="_blank"><span class="icon"></span></a>',
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@@ -1252,76 +1253,79 @@
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'</div>'
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].join('');
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- dom.preview.querySelector( 'iframe' ).addEventListener( 'load', function( event ) {
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- dom.preview.classList.add( 'loaded' );
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+ dom.overlay.querySelector( 'iframe' ).addEventListener( 'load', function( event ) {
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+ dom.overlay.classList.add( 'loaded' );
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}, false );
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- dom.preview.querySelector( '.close' ).addEventListener( 'click', function( event ) {
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- closePreview();
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+ dom.overlay.querySelector( '.close' ).addEventListener( 'click', function( event ) {
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+ closeOverlay();
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event.preventDefault();
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}, false );
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- dom.preview.querySelector( '.external' ).addEventListener( 'click', function( event ) {
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- closePreview();
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+ dom.overlay.querySelector( '.external' ).addEventListener( 'click', function( event ) {
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+ closeOverlay();
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}, false );
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setTimeout( function() {
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- dom.preview.classList.add( 'visible' );
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+ dom.overlay.classList.add( 'visible' );
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}, 1 );
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}
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/**
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- * Closes the iframe preview window.
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+ * Opens a overlay window with help material.
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*/
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- function closePreview() {
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+ function showHelp() {
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- if( dom.preview ) {
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- dom.preview.setAttribute( 'src', '' );
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- dom.preview.parentNode.removeChild( dom.preview );
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- dom.preview = null;
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- }
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-
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- }
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+ closeOverlay();
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- /**
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- * Opens a overlay window for the keyboard shortcuts.
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- */
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- function openShortcutsOverlay() {
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+ dom.overlay = document.createElement( 'div' );
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+ dom.overlay.classList.add( 'overlay' );
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+ dom.overlay.classList.add( 'overlay-help' );
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+ dom.wrapper.appendChild( dom.overlay );
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- closePreview();
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+ var html = '<p class="title">Keyboard Shortcuts</p><br/>';
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- dom.preview = document.createElement( 'div' );
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- dom.preview.classList.add( 'preview-link-overlay' );
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- dom.wrapper.appendChild( dom.preview );
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-
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- var html = '<h5>Keyboard Shortcuts</h5><br/>';
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- html += '<table> <th>KEY</th> <th>ACTION</th>';
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- for( var key in keyboard_shortcuts ) {
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- html += '<tr> <td>' + key + '</td> <td>' + keyboard_shortcuts[key] + '</td> </tr>'
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+ html += '<table><th>KEY</th><th>ACTION</th>';
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+ for( var key in keyboardShortcuts ) {
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+ html += '<tr><td>' + key + '</td><td>' + keyboardShortcuts[ key ] + '</td></tr>';
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}
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+
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html += '</table>';
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- dom.preview.innerHTML = [
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+ dom.overlay.innerHTML = [
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'<header>',
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'<a class="close" href="#"><span class="icon"></span></a>',
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'</header>',
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'<div class="viewport">',
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- '<div class="shortcuts">'+html+'</div>',
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+ '<div class="viewport-inner">'+ html +'</div>',
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'</div>'
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].join('');
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- dom.preview.querySelector( '.close' ).addEventListener( 'click', function( event ) {
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- closePreview();
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+ dom.overlay.querySelector( '.close' ).addEventListener( 'click', function( event ) {
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+ closeOverlay();
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event.preventDefault();
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}, false );
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setTimeout( function() {
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- dom.preview.classList.add( 'visible' );
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+ dom.overlay.classList.add( 'visible' );
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}, 1 );
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}
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+ /**
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+ * Closes any currently open overlay.
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+ */
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+ function closeOverlay() {
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+
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+ if( dom.overlay ) {
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+ dom.overlay.setAttribute( 'src', '' );
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+ dom.overlay.parentNode.removeChild( dom.overlay );
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+ dom.overlay = null;
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+ }
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+
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+ }
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+
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/**
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* Applies JavaScript-controlled layout rules to the
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* presentation.
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@@ -3289,12 +3293,13 @@
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/**
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* Handler for the document level 'keypress' event.
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*/
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-
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function onDocumentKeyPress( event ) {
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+
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// Check if the pressed key is question mark
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- if( event.shiftKey && event.charCode == 63 ) {
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- openShortcutsOverlay();
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+ if( event.shiftKey && event.charCode === 63 ) {
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+ showHelp();
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}
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+
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}
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/**
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@@ -3402,8 +3407,8 @@
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}
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// ESC or O key
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else if ( ( event.keyCode === 27 || event.keyCode === 79 ) && features.transforms3d ) {
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- if( dom.preview ) {
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- closePreview();
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+ if( dom.overlay ) {
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+ closeOverlay();
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}
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else {
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toggleOverview();
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@@ -3701,7 +3706,7 @@
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var url = event.target.getAttribute( 'href' );
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if( url ) {
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- openPreview( url );
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+ showPreview( url );
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event.preventDefault();
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}
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