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\ No newline at end of file diff --git a/js/controllers/plugins.js b/js/controllers/plugins.js index 9e52866..300b0ba 100644 --- a/js/controllers/plugins.js +++ b/js/controllers/plugins.js @@ -1,4 +1,4 @@ -import { loadScript } from './../utils/util.js' +import { loadScript } from '../utils/loader.js' /** * Manages loading and registering of reveal.js plugins. diff --git a/js/reveal.js b/js/reveal.js index c4508c0..feb94fa 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -1,6 +1,12 @@ import Plugins from './controllers/plugins.js' import Playback from './components/playback.js' import defaultConfig from './config.js' +import { + SLIDES_SELECTOR, + HORIZONTAL_SLIDES_SELECTOR, + VERTICAL_SLIDES_SELECTOR, + POST_MESSAGE_METHOD_BLACKLIST +} from './utils/constants.js' import { extend, toArray, @@ -9,10 +15,9 @@ import { transformElement, injectStyleSheet, closestParent, - colorToRgb, - colorBrightness, enterFullscreen } from './utils/util.js' +import { colorToRgb, colorBrightness } from './utils/color.js' /** * reveal.js @@ -28,16 +33,8 @@ export default function( revealElement, options ) { // The reveal.js version const VERSION = '4.0.0-dev'; - const SLIDES_SELECTOR = '.slides section'; - const HORIZONTAL_SLIDES_SELECTOR = '.slides>section'; - const VERTICAL_SLIDES_SELECTOR = '.slides>section.present>section'; - const HOME_SLIDE_SELECTOR = '.slides>section:first-of-type'; - const UA = navigator.userAgent; - // Methods that may not be invoked via the postMessage API - const POST_MESSAGE_METHOD_BLACKLIST = /registerPlugin|registerKeyboardShortcut|addKeyBinding|addEventListener/; - // Configuration defaults, can be overridden at initialization time let config, @@ -147,7 +144,7 @@ export default function( revealElement, options ) { function initialize() { if( !revealElement ) { - console.warn( 'reveal.js must be instantiated with a valid .reveal element' ); + console.warn( 'reveal.js can not initialize without a valid .reveal element.' ); return; } @@ -160,16 +157,10 @@ export default function( revealElement, options ) { // Force a layout when the whole page, incl fonts, has loaded window.addEventListener( 'load', layout, false ); - let query = Reveal.getQueryHash(); - - // Do not accept new dependencies via query config to avoid - // the potential of malicious script injection - if( typeof query['dependencies'] !== 'undefined' ) delete query['dependencies']; - // Copy options over to our config object - config = { ...defaultConfig, ...options, ...query }; + config = { ...defaultConfig, ...options, ...Reveal.getQueryHash() }; - // Load plugins and move on to #start() once done + // Load plugins then move on to #start() plugins.load( config.dependencies ).then( start ) return Reveal; @@ -5471,7 +5462,7 @@ export default function( revealElement, options ) { Reveal = { - VERSION: VERSION, + VERSION, initialize, configure, @@ -5623,6 +5614,10 @@ export default function( revealElement, options ) { query[ i ] = deserialize( unescape( value ) ); } + // Do not accept new dependencies via query config to avoid + // the potential of malicious script injection + if( typeof query['dependencies'] !== 'undefined' ) delete query['dependencies']; + return query; }, diff --git a/js/utils/color.js b/js/utils/color.js new file mode 100644 index 0000000..1043f83 --- /dev/null +++ b/js/utils/color.js @@ -0,0 +1,77 @@ +/** + * Converts various color input formats to an {r:0,g:0,b:0} object. + * + * @param {string} color The string representation of a color + * @example + * colorToRgb('#000'); + * @example + * colorToRgb('#000000'); + * @example + * colorToRgb('rgb(0,0,0)'); + * @example + * colorToRgb('rgba(0,0,0)'); + * + * @return {{r: number, g: number, b: number, [a]: number}|null} + */ +export const colorToRgb = ( color ) => { + + let hex3 = color.match( /^#([0-9a-f]{3})$/i ); + if( hex3 && hex3[1] ) { + hex3 = hex3[1]; + return { + r: parseInt( hex3.charAt( 0 ), 16 ) * 0x11, + g: parseInt( hex3.charAt( 1 ), 16 ) * 0x11, + b: parseInt( hex3.charAt( 2 ), 16 ) * 0x11 + }; + } + + let hex6 = color.match( /^#([0-9a-f]{6})$/i ); + if( hex6 && hex6[1] ) { + hex6 = hex6[1]; + return { + r: parseInt( hex6.substr( 0, 2 ), 16 ), + g: parseInt( hex6.substr( 2, 2 ), 16 ), + b: parseInt( hex6.substr( 4, 2 ), 16 ) + }; + } + + let rgb = color.match( /^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i ); + if( rgb ) { + return { + r: parseInt( rgb[1], 10 ), + g: parseInt( rgb[2], 10 ), + b: parseInt( rgb[3], 10 ) + }; + } + + let rgba = color.match( /^rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\,\s*([\d]+|[\d]*.[\d]+)\s*\)$/i ); + if( rgba ) { + return { + r: parseInt( rgba[1], 10 ), + g: parseInt( rgba[2], 10 ), + b: parseInt( rgba[3], 10 ), + a: parseFloat( rgba[4] ) + }; + } + + return null; + +} + +/** + * Calculates brightness on a scale of 0-255. + * + * @param {string} color See colorToRgb for supported formats. + * @see {@link colorToRgb} + */ +export const colorBrightness = ( color ) => { + + if( typeof color === 'string' ) color = colorToRgb( color ); + + if( color ) { + return ( color.r * 299 + color.g * 587 + color.b * 114 ) / 1000; + } + + return null; + +} \ No newline at end of file diff --git a/js/utils/constants.js b/js/utils/constants.js new file mode 100644 index 0000000..46faf27 --- /dev/null +++ b/js/utils/constants.js @@ -0,0 +1,7 @@ + +export const SLIDES_SELECTOR = '.slides section'; +export const HORIZONTAL_SLIDES_SELECTOR = '.slides>section'; +export const VERTICAL_SLIDES_SELECTOR = '.slides>section.present>section'; + +// Methods that may not be invoked via the postMessage API +export const POST_MESSAGE_METHOD_BLACKLIST = /registerPlugin|registerKeyboardShortcut|addKeyBinding|addEventListener/; \ No newline at end of file diff --git a/js/utils/loader.js b/js/utils/loader.js new file mode 100644 index 0000000..58d39ac --- /dev/null +++ b/js/utils/loader.js @@ -0,0 +1,46 @@ +/** + * Loads a JavaScript file from the given URL and executes it. + * + * @param {string} url Address of the .js file to load + * @param {function} callback Method to invoke when the script + * has loaded and executed + */ +export const loadScript = ( url, callback ) => { + + const script = document.createElement( 'script' ); + script.type = 'text/javascript'; + script.async = false; + script.defer = false; + script.src = url; + + if( typeof callback === 'function' ) { + + // Success callback + script.onload = script.onreadystatechange = event => { + if( event.type === 'load' || /loaded|complete/.test( script.readyState ) ) { + + // Kill event listeners + script.onload = script.onreadystatechange = script.onerror = null; + + callback(); + + } + }; + + // Error callback + script.onerror = err => { + + // Kill event listeners + script.onload = script.onreadystatechange = script.onerror = null; + + callback( new Error( 'Failed loading script: ' + script.src + '\n' + err ) ); + + }; + + } + + // Append the script at the end of + const head = document.querySelector( 'head' ); + head.insertBefore( script, head.lastChild ); + +} \ No newline at end of file diff --git a/js/utils/util.js b/js/utils/util.js index b96fe29..a7aae7b 100644 --- a/js/utils/util.js +++ b/js/utils/util.js @@ -112,84 +112,6 @@ export const closestParent = ( target, selector ) => { } -/** - * Converts various color input formats to an {r:0,g:0,b:0} object. - * - * @param {string} color The string representation of a color - * @example - * colorToRgb('#000'); - * @example - * colorToRgb('#000000'); - * @example - * colorToRgb('rgb(0,0,0)'); - * @example - * colorToRgb('rgba(0,0,0)'); - * - * @return {{r: number, g: number, b: number, [a]: number}|null} - */ -export const colorToRgb = ( color ) => { - - let hex3 = color.match( /^#([0-9a-f]{3})$/i ); - if( hex3 && hex3[1] ) { - hex3 = hex3[1]; - return { - r: parseInt( hex3.charAt( 0 ), 16 ) * 0x11, - g: parseInt( hex3.charAt( 1 ), 16 ) * 0x11, - b: parseInt( hex3.charAt( 2 ), 16 ) * 0x11 - }; - } - - let hex6 = color.match( /^#([0-9a-f]{6})$/i ); - if( hex6 && hex6[1] ) { - hex6 = hex6[1]; - return { - r: parseInt( hex6.substr( 0, 2 ), 16 ), - g: parseInt( hex6.substr( 2, 2 ), 16 ), - b: parseInt( hex6.substr( 4, 2 ), 16 ) - }; - } - - let rgb = color.match( /^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i ); - if( rgb ) { - return { - r: parseInt( rgb[1], 10 ), - g: parseInt( rgb[2], 10 ), - b: parseInt( rgb[3], 10 ) - }; - } - - let rgba = color.match( /^rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\,\s*([\d]+|[\d]*.[\d]+)\s*\)$/i ); - if( rgba ) { - return { - r: parseInt( rgba[1], 10 ), - g: parseInt( rgba[2], 10 ), - b: parseInt( rgba[3], 10 ), - a: parseFloat( rgba[4] ) - }; - } - - return null; - -} - -/** - * Calculates brightness on a scale of 0-255. - * - * @param {string} color See colorToRgb for supported formats. - * @see {@link colorToRgb} - */ -export const colorBrightness = ( color ) => { - - if( typeof color === 'string' ) color = colorToRgb( color ); - - if( color ) { - return ( color.r * 299 + color.g * 587 + color.b * 114 ) / 1000; - } - - return null; - -} - /** * Handling the fullscreen functionality via the fullscreen API * @@ -230,51 +152,4 @@ export const injectStyleSheet = ( value ) => { } document.getElementsByTagName( 'head' )[0].appendChild( tag ); -} - -/** - * Loads a JavaScript file from the given URL and executes it. - * - * @param {string} url Address of the .js file to load - * @param {function} callback Method to invoke when the script - * has loaded and executed - */ -export const loadScript = ( url, callback ) => { - - const script = document.createElement( 'script' ); - script.type = 'text/javascript'; - script.async = false; - script.defer = false; - script.src = url; - - if( typeof callback === 'function' ) { - - // Success callback - script.onload = script.onreadystatechange = event => { - if( event.type === 'load' || /loaded|complete/.test( script.readyState ) ) { - - // Kill event listeners - script.onload = script.onreadystatechange = script.onerror = null; - - callback(); - - } - }; - - // Error callback - script.onerror = err => { - - // Kill event listeners - script.onload = script.onreadystatechange = script.onerror = null; - - callback( new Error( 'Failed loading script: ' + script.src + '\n' + err ) ); - - }; - - } - - // Append the script at the end of - const head = document.querySelector( 'head' ); - head.insertBefore( script, head.lastChild ); - } \ No newline at end of file