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add color, constant and loader modules

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This commit is contained in:
Hakim El Hattab 2020-03-07 18:48:39 +01:00
parent 7f94a79c27
commit 49bb498d9d
7 changed files with 147 additions and 147 deletions
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2
dist/reveal.min.js vendored
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File diff suppressed because one or more lines are too long

2
js/controllers/plugins.js
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@ -1,4 +1,4 @@
import { loadScript } from './../utils/util.js'
import { loadScript } from '../utils/loader.js'
/**
* Manages loading and registering of reveal.js plugins.

35
js/reveal.js
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@ -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;
},

77
js/utils/color.js Normal file
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@ -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;
}

7
js/utils/constants.js Normal file
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@ -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/;

46
js/utils/loader.js Normal file
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@ -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 <head>
const head = document.querySelector( 'head' );
head.insertBefore( script, head.lastChild );
}

125
js/utils/util.js
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@ -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 <head>
const head = document.querySelector( 'head' );
head.insertBefore( script, head.lastChild );
}