move out additional util methods, use shorthands for api
This commit is contained in:
Hakim El Hattab
parent
313ad46e30
commit
4cfd254086
@ -406,9 +406,14 @@ Reveal.addEventListener( 'customevent', function() {
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</div>
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<script src="dist/reveal.min.js"></script>
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<script type="module" src="js/index.js"></script>
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<script>
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<script type="module">
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// WIP support for multiple reveal.js instances
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// let a = new Reveal(document.querySelector( '.reveal' ), {controls: false});
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// let b = new Reveal(document.querySelector( '.reveal' ), {controls: true});
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// console.log(a.getConfig().controls,b.getConfig().controls);
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// More info https://github.com/hakimel/reveal.js#configuration
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Reveal.initialize({
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2
dist/reveal.min.js
vendored
2
dist/reveal.min.js
vendored
File diff suppressed because one or more lines are too long
291
js/reveal.js
291
js/reveal.js
@ -1,5 +1,17 @@
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import Playback from './components/playback.js'
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import defaultConfig from './config.js'
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import {
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extend,
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toArray,
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distanceBetween,
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deserialize,
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transformElement,
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injectStyleSheet,
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closestParent,
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colorToRgb,
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colorBrightness,
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enterFullscreen
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} from './utils/util.js'
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/**
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* reveal.js
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@ -1350,84 +1362,6 @@ export default function( revealElement, options ) {
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}
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/**
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* Extend object a with the properties of object b.
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* If there's a conflict, object b takes precedence.
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*
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* @param {object} a
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* @param {object} b
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*/
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function extend( a, b ) {
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for( var i in b ) {
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a[ i ] = b[ i ];
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}
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return a;
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}
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/**
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* Converts the target object to an array.
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*
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* @param {object} o
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* @return {object[]}
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*/
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function toArray( o ) {
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return Array.prototype.slice.call( o );
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}
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/**
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* Utility for deserializing a value.
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*
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* @param {*} value
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* @return {*}
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*/
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function deserialize( value ) {
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if( typeof value === 'string' ) {
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if( value === 'null' ) return null;
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else if( value === 'true' ) return true;
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else if( value === 'false' ) return false;
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else if( value.match( /^-?[\d\.]+$/ ) ) return parseFloat( value );
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}
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return value;
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}
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/**
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* Measures the distance in pixels between point a
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* and point b.
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*
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* @param {object} a point with x/y properties
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* @param {object} b point with x/y properties
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*
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* @return {number}
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*/
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function distanceBetween( a, b ) {
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var dx = a.x - b.x,
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dy = a.y - b.y;
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return Math.sqrt( dx*dx + dy*dy );
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}
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/**
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* Applies a CSS transform to the target element.
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*
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* @param {HTMLElement} element
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* @param {string} transform
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*/
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function transformElement( element, transform ) {
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element.style.transform = transform;
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}
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/**
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* Applies CSS transforms to the slides container. The container
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* is transformed from two separate sources: layout and the overview
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@ -1451,139 +1385,6 @@ export default function( revealElement, options ) {
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}
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/**
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* Injects the given CSS styles into the DOM.
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*
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* @param {string} value
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*/
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function injectStyleSheet( value ) {
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let tag = document.createElement( 'style' );
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tag.type = 'text/css';
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if( tag.styleSheet ) {
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tag.styleSheet.cssText = value;
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}
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else {
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tag.appendChild( document.createTextNode( value ) );
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}
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document.getElementsByTagName( 'head' )[0].appendChild( tag );
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}
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/**
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* Find the closest parent that matches the given
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* selector.
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*
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* @param {HTMLElement} target The child element
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* @param {String} selector The CSS selector to match
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* the parents against
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*
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* @return {HTMLElement} The matched parent or null
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* if no matching parent was found
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*/
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function closestParent( target, selector ) {
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let parent = target.parentNode;
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while( parent ) {
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// There's some overhead doing this each time, we don't
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// want to rewrite the element prototype but should still
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// be enough to feature detect once at startup...
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let matchesMethod = parent.matches || parent.matchesSelector || parent.msMatchesSelector;
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// If we find a match, we're all set
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if( matchesMethod && matchesMethod.call( parent, selector ) ) {
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return parent;
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}
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// Keep searching
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parent = parent.parentNode;
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}
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return null;
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}
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/**
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* Converts various color input formats to an {r:0,g:0,b:0} object.
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*
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* @param {string} color The string representation of a color
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* @example
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* colorToRgb('#000');
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* @example
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* colorToRgb('#000000');
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* @example
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* colorToRgb('rgb(0,0,0)');
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* @example
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* colorToRgb('rgba(0,0,0)');
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*
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* @return {{r: number, g: number, b: number, [a]: number}|null}
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*/
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function colorToRgb( color ) {
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let hex3 = color.match( /^#([0-9a-f]{3})$/i );
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if( hex3 && hex3[1] ) {
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hex3 = hex3[1];
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return {
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r: parseInt( hex3.charAt( 0 ), 16 ) * 0x11,
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g: parseInt( hex3.charAt( 1 ), 16 ) * 0x11,
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b: parseInt( hex3.charAt( 2 ), 16 ) * 0x11
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};
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}
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let hex6 = color.match( /^#([0-9a-f]{6})$/i );
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if( hex6 && hex6[1] ) {
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hex6 = hex6[1];
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return {
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r: parseInt( hex6.substr( 0, 2 ), 16 ),
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g: parseInt( hex6.substr( 2, 2 ), 16 ),
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b: parseInt( hex6.substr( 4, 2 ), 16 )
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};
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}
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let rgb = color.match( /^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i );
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if( rgb ) {
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return {
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r: parseInt( rgb[1], 10 ),
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g: parseInt( rgb[2], 10 ),
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b: parseInt( rgb[3], 10 )
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};
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}
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let rgba = color.match( /^rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\,\s*([\d]+|[\d]*.[\d]+)\s*\)$/i );
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if( rgba ) {
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return {
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r: parseInt( rgba[1], 10 ),
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g: parseInt( rgba[2], 10 ),
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b: parseInt( rgba[3], 10 ),
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a: parseFloat( rgba[4] )
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};
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}
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return null;
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}
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/**
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* Calculates brightness on a scale of 0-255.
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*
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* @param {string} color See colorToRgb for supported formats.
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* @see {@link colorToRgb}
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*/
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function colorBrightness( color ) {
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if( typeof color === 'string' ) color = colorToRgb( color );
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if( color ) {
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return ( color.r * 299 + color.g * 587 + color.b * 114 ) / 1000;
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}
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return null;
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}
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/**
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* Returns the remaining height within the parent of the
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* target element.
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@ -2293,29 +2094,6 @@ export default function( revealElement, options ) {
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}
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/**
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* Handling the fullscreen functionality via the fullscreen API
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*
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* @see http://fullscreen.spec.whatwg.org/
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* @see https://developer.mozilla.org/en-US/docs/DOM/Using_fullscreen_mode
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*/
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function enterFullscreen() {
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let element = document.documentElement;
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// Check which implementation is available
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let requestMethod = element.requestFullscreen ||
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element.webkitRequestFullscreen ||
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element.webkitRequestFullScreen ||
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element.mozRequestFullScreen ||
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element.msRequestFullscreen;
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if( requestMethod ) {
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requestMethod.apply( element );
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}
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}
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/**
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* Shows the mouse pointer after it has been hidden with
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* #hideCursor.
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@ -4541,6 +4319,7 @@ export default function( revealElement, options ) {
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}
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}
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/**
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* Retrieves the h/v location and fragment of the current,
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* or specified, slide.
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@ -6015,24 +5794,16 @@ export default function( revealElement, options ) {
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getComputedSlideSize,
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// Returns the previous slide element, may be null
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getPreviousSlide: () => {
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return previousSlide;
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},
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getPreviousSlide: () => previousSlide,
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// Returns the current slide element
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getCurrentSlide: () => {
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return currentSlide;
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},
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getCurrentSlide: () => currentSlide,
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// Returns the current scale of the presentation content
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getScale: () => {
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return scale;
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},
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getScale: () => scale,
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// Returns the current configuration object
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getConfig: () => {
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return config;
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},
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getConfig: () => config,
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// Helper method, retrieves query string as a key/value hash
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getQueryHash: () => {
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@ -6053,19 +5824,13 @@ export default function( revealElement, options ) {
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},
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// Returns the top-level DOM element
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getRevealElement: () => {
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return dom.wrapper || document.querySelector( '.reveal' );
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},
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getRevealElement: () => dom.wrapper || document.querySelector( '.reveal' ),
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// Returns a hash with all registered plugins
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getPlugins: () => {
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return plugins;
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},
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getPlugins: () => plugins,
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// Returns true if we're currently on the first slide
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isFirstSlide: () => {
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return indexh === 0 && indexv === 0;
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},
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isFirstSlide: () => indexh === 0 && indexv === 0,
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// Returns true if we're currently on the last slide
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isLastSlide: () => {
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@ -6096,31 +5861,21 @@ export default function( revealElement, options ) {
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},
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// Checks if reveal.js has been loaded and is ready for use
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isReady: () => {
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return loaded;
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},
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isReady: () => loaded,
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// Forward event binding to the reveal DOM element
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addEventListener: ( type, listener, useCapture ) => {
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if( 'addEventListener' in window ) {
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Reveal.getRevealElement().addEventListener( type, listener, useCapture );
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}
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},
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removeEventListener: ( type, listener, useCapture ) => {
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if( 'addEventListener' in window ) {
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Reveal.getRevealElement().removeEventListener( type, listener, useCapture );
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}
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},
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// Programmatically triggers a keyboard event
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triggerKey: keyCode => {
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onDocumentKeyDown( { keyCode } );
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},
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triggerKey: keyCode => onDocumentKeyDown( { keyCode } ),
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// Registers a new shortcut to include in the help overlay
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registerKeyboardShortcut: ( key, value ) => {
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keyboardShortcuts[key] = value;
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}
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registerKeyboardShortcut: ( key, value ) => keyboardShortcuts[key] = value
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};
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return init();
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233
js/utils/util.js
Normal file
233
js/utils/util.js
Normal file
@ -0,0 +1,233 @@
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/**
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* Extend object a with the properties of object b.
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* If there's a conflict, object b takes precedence.
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*
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* @param {object} a
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* @param {object} b
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*/
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export const extend = ( a, b ) => {
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for( var i in b ) {
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a[ i ] = b[ i ];
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}
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return a;
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}
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/**
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* Converts the target object to an array.
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*
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* @param {object} o
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* @return {object[]}
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*/
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export const toArray = ( o ) => {
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return Array.prototype.slice.call( o );
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}
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/**
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* Utility for deserializing a value.
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*
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* @param {*} value
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* @return {*}
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*/
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export const deserialize = ( value ) => {
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if( typeof value === 'string' ) {
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if( value === 'null' ) return null;
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else if( value === 'true' ) return true;
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else if( value === 'false' ) return false;
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else if( value.match( /^-?[\d\.]+$/ ) ) return parseFloat( value );
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}
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return value;
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}
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/**
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* Measures the distance in pixels between point a
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* and point b.
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*
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* @param {object} a point with x/y properties
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* @param {object} b point with x/y properties
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*
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* @return {number}
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*/
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export const distanceBetween = ( a, b ) => {
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var dx = a.x - b.x,
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dy = a.y - b.y;
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return Math.sqrt( dx*dx + dy*dy );
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}
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/**
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* Applies a CSS transform to the target element.
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*
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* @param {HTMLElement} element
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* @param {string} transform
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*/
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export const transformElement = ( element, transform ) => {
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element.style.transform = transform;
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}
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/**
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* Injects the given CSS styles into the DOM.
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*
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* @param {string} value
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*/
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export const injectStyleSheet = ( value ) => {
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let tag = document.createElement( 'style' );
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tag.type = 'text/css';
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if( tag.styleSheet ) {
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tag.styleSheet.cssText = value;
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}
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else {
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tag.appendChild( document.createTextNode( value ) );
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}
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document.getElementsByTagName( 'head' )[0].appendChild( tag );
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}
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/**
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* Find the closest parent that matches the given
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* selector.
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*
|
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* @param {HTMLElement} target The child element
|
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* @param {String} selector The CSS selector to match
|
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* the parents against
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*
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* @return {HTMLElement} The matched parent or null
|
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* if no matching parent was found
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*/
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export const closestParent = ( target, selector ) => {
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let parent = target.parentNode;
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while( parent ) {
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|
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// There's some overhead doing this each time, we don't
|
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// want to rewrite the element prototype but should still
|
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// be enough to feature detect once at startup...
|
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let matchesMethod = parent.matches || parent.matchesSelector || parent.msMatchesSelector;
|
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|
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// If we find a match, we're all set
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if( matchesMethod && matchesMethod.call( parent, selector ) ) {
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return parent;
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}
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// Keep searching
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parent = parent.parentNode;
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}
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return null;
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}
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/**
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* Converts various color input formats to an {r:0,g:0,b:0} object.
|
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*
|
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* @param {string} color The string representation of a color
|
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* @example
|
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* colorToRgb('#000');
|
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* @example
|
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* colorToRgb('#000000');
|
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* @example
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* colorToRgb('rgb(0,0,0)');
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* @example
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* colorToRgb('rgba(0,0,0)');
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*
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* @return {{r: number, g: number, b: number, [a]: number}|null}
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*/
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export const colorToRgb = ( color ) => {
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let hex3 = color.match( /^#([0-9a-f]{3})$/i );
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if( hex3 && hex3[1] ) {
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hex3 = hex3[1];
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return {
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r: parseInt( hex3.charAt( 0 ), 16 ) * 0x11,
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g: parseInt( hex3.charAt( 1 ), 16 ) * 0x11,
|
||||
b: parseInt( hex3.charAt( 2 ), 16 ) * 0x11
|
||||
};
|
||||
}
|
||||
|
||||
let hex6 = color.match( /^#([0-9a-f]{6})$/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
|
||||
*
|
||||
* @see http://fullscreen.spec.whatwg.org/
|
||||
* @see https://developer.mozilla.org/en-US/docs/DOM/Using_fullscreen_mode
|
||||
*/
|
||||
export const enterFullscreen = () => {
|
||||
|
||||
let element = document.documentElement;
|
||||
|
||||
// Check which implementation is available
|
||||
let requestMethod = element.requestFullscreen ||
|
||||
element.webkitRequestFullscreen ||
|
||||
element.webkitRequestFullScreen ||
|
||||
element.mozRequestFullScreen ||
|
||||
element.msRequestFullscreen;
|
||||
|
||||
if( requestMethod ) {
|
||||
requestMethod.apply( element );
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user