add focus controller, manages keyboard focus across multiple embedded decks
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Hakim El Hattab committed
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6 files changed
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+2
-2
@@ -1,9 +1,9 @@
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/*!
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* reveal.js 4.0.0-dev (Fri May 08 2020)
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* reveal.js 4.0.0-dev (Mon May 11 2020)
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* https://revealjs.com
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* MIT licensed
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*
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* Copyright (C) 2020 Hakim El Hattab, https://hakim.se
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*/
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//# sourceMappingURL=reveal.esm.js.map
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Vendored
+2
-2
@@ -1,9 +1,9 @@
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/*!
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* reveal.js 4.0.0-dev (Fri May 08 2020)
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* reveal.js 4.0.0-dev (Mon May 11 2020)
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* https://revealjs.com
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* MIT licensed
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*
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* Copyright (C) 2020 Hakim El Hattab, https://hakim.se
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*/
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0!==arguments[3]?arguments[3]:"",a=e.querySelectorAll("."+i),s=0;s<a.length;s++){var r=a[s];if(r.parentNode===e)return r}var o=document.createElement(t);return o.className=i,o.innerHTML=n,e.appendChild(o),o},y=function(e){var t=document.createElement("style");return t.type="text/css",e&&e.length>0&&(t.styleSheet?t.styleSheet.cssText=e:t.appendChild(document.createTextNode(e))),document.head.appendChild(t),t},b=function(){var e={};for(var t in location.search.replace(/[A-Z0-9]+?=([\w\.%-]*)/gi,(function(t){e[t.split("=").shift()]=t.split("=").pop()})),e){var i=e[t];e[t]=f(unescape(i))}return void 0!==e.dependencies&&delete e.dependencies,e},k=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(e){var i,n=e.style.height;return e.style.height="0px",e.parentNode.style.height="auto",i=t-e.parentNode.offsetHeight,e.style.height=n+"px",e.parentNode.style.removeProperty("height"),i}return t},w=navigator.userAgent,R=document.createElement("div"),A=/(iphone|ipod|ipad|android)/gi.test(w)||"MacIntel"===navigator.platform&&navigator.maxTouchPoints>1,E=/chrome/i.test(w)&&!/edge/i.test(w),S=/android/gi.test(w),L="zoom"in R.style&&!A&&(E||/Version\/[\d\.]+.*Safari/.test(w)),x="function"==typeof window.history.replaceState&&!/PhantomJS/.test(w),C=function(){function e(i){t(this,e),this.Reveal=i,this.startEmbeddedIframe=this.startEmbeddedIframe.bind(this)}return n(e,[{key:"shouldPreload",value:function(e){var t=this.Reveal.getConfig().preloadIframes;return"boolean"!=typeof t&&(t=e.hasAttribute("data-preload")),t}},{key:"load",value:function(e){var t=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};e.style.display=this.Reveal.getConfig().display,h(e,"img[data-src], video[data-src], audio[data-src], iframe[data-src]").forEach((function(e){("IFRAME"!==e.tagName||t.shouldPreload(e))&&(e.setAttribute("src",e.getAttribute("data-src")),e.setAttribute("data-lazy-loaded",""),e.removeAttribute("data-src"))})),h(e,"video, audio").forEach((function(e){var t=0;h(e,"source[data-src]").forEach((function(e){e.setALine truncated
|
||||
//# sourceMappingURL=reveal.js.map
|
||||
@@ -57,6 +57,15 @@
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<style>
|
||||
.reveal {
|
||||
border: 4px solid #ccc;
|
||||
}
|
||||
.reveal.focused {
|
||||
border-color: #94b5ff;
|
||||
}
|
||||
</style>
|
||||
|
||||
<script src="../dist/reveal.js"></script>
|
||||
<script src="../dist/plugin/highlight.js"></script>
|
||||
<script src="../dist/plugin/markdown.js"></script>
|
||||
@@ -65,7 +74,8 @@
|
||||
|
||||
let deck1 = new Reveal( document.querySelector( '.deck1' ), {
|
||||
embedded: true,
|
||||
keyboard: false,
|
||||
progress: false,
|
||||
keyboardCondition: 'focused',
|
||||
plugins: [ RevealHighlight ]
|
||||
} );
|
||||
deck1.on( 'slidechanged', () => {
|
||||
@@ -75,7 +85,8 @@
|
||||
|
||||
let deck2 = new Reveal( document.querySelector( '.deck2' ), {
|
||||
embedded: true,
|
||||
keyboard: true,
|
||||
progress: false,
|
||||
keyboardCondition: 'focused',
|
||||
plugins: [ RevealMarkdown, RevealMath ]
|
||||
} );
|
||||
deck2.initialize().then( () => {
|
||||
|
||||
@@ -0,0 +1,95 @@
|
||||
/**
|
||||
* Manages focus when a presentation is embedded. This
|
||||
* helps us only capture keyboard from the presentation
|
||||
* a user is currently interacting with in a page where
|
||||
* multiple presentations are embedded.
|
||||
*/
|
||||
|
||||
const STATE_FOCUS = 'focus';
|
||||
const STATE_BLUR = 'blur';
|
||||
|
||||
export default class Focus {
|
||||
|
||||
constructor( Reveal ) {
|
||||
|
||||
this.Reveal = Reveal;
|
||||
|
||||
this.onRevealPointerDown = this.onRevealPointerDown.bind( this );
|
||||
this.onDocumentPointerDown = this.onDocumentPointerDown.bind( this );
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Called when the reveal.js config is updated.
|
||||
*/
|
||||
configure( config, oldConfig ) {
|
||||
|
||||
if( config.embedded ) {
|
||||
this.blur();
|
||||
}
|
||||
else {
|
||||
this.focus();
|
||||
this.unbind();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
bind() {
|
||||
|
||||
if( this.Reveal.getConfig().embedded ) {
|
||||
this.Reveal.getRevealElement().addEventListener( 'pointerdown', this.onRevealPointerDown, false );
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
unbind() {
|
||||
|
||||
this.Reveal.getRevealElement().removeEventListener( 'pointerdown', this.onRevealPointerDown, false );
|
||||
document.removeEventListener( 'pointerdown', this.onDocumentPointerDown, false );
|
||||
|
||||
}
|
||||
|
||||
focus() {
|
||||
|
||||
if( this.state !== STATE_FOCUS ) {
|
||||
this.Reveal.getRevealElement().classList.add( 'focused' );
|
||||
document.addEventListener( 'pointerdown', this.onDocumentPointerDown, false );
|
||||
}
|
||||
|
||||
this.state = STATE_FOCUS;
|
||||
|
||||
}
|
||||
|
||||
blur() {
|
||||
|
||||
if( this.state !== STATE_BLUR ) {
|
||||
this.Reveal.getRevealElement().classList.remove( 'focused' );
|
||||
document.removeEventListener( 'pointerdown', this.onDocumentPointerDown, false );
|
||||
}
|
||||
|
||||
this.state = STATE_BLUR;
|
||||
|
||||
}
|
||||
|
||||
isFocused() {
|
||||
|
||||
return this.state === STATE_FOCUS;
|
||||
|
||||
}
|
||||
|
||||
onRevealPointerDown( event ) {
|
||||
|
||||
this.focus();
|
||||
|
||||
}
|
||||
|
||||
onDocumentPointerDown( event ) {
|
||||
|
||||
let revealElement = event.target.closest( '.reveal' );
|
||||
if( !revealElement || revealElement !== this.Reveal.getRevealElement() ) {
|
||||
this.blur();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -151,6 +151,12 @@ export default class Keyboard {
|
||||
return true;
|
||||
}
|
||||
|
||||
// If keyboardCondition is set, only capture keyboard events
|
||||
// for embedded decks when they are focused
|
||||
if( config.keyboardCondition === 'focused' && !this.Reveal.isFocused() ) {
|
||||
return true;
|
||||
}
|
||||
|
||||
// Shorthand
|
||||
let keyCode = event.keyCode;
|
||||
|
||||
|
||||
@@ -12,6 +12,7 @@ import Pointer from './controllers/pointer.js'
|
||||
import Plugins from './controllers/plugins.js'
|
||||
import Print from './controllers/print.js'
|
||||
import Touch from './controllers/touch.js'
|
||||
import Focus from './controllers/focus.js'
|
||||
import Notes from './controllers/notes.js'
|
||||
import Playback from './components/playback.js'
|
||||
import defaultConfig from './config.js'
|
||||
@@ -111,6 +112,7 @@ export default function( revealElement, options ) {
|
||||
pointer = new Pointer( Reveal ),
|
||||
plugins = new Plugins( Reveal ),
|
||||
print = new Print( Reveal ),
|
||||
focus = new Focus( Reveal ),
|
||||
touch = new Touch( Reveal ),
|
||||
notes = new Notes( Reveal );
|
||||
|
||||
@@ -464,6 +466,7 @@ export default function( revealElement, options ) {
|
||||
}
|
||||
|
||||
notes.configure( config, oldConfig );
|
||||
focus.configure( config, oldConfig );
|
||||
pointer.configure( config, oldConfig );
|
||||
controls.configure( config, oldConfig );
|
||||
progress.configure( config, oldConfig );
|
||||
@@ -489,6 +492,7 @@ export default function( revealElement, options ) {
|
||||
if( config.progress ) progress.bind();
|
||||
if( config.respondToHashChanges ) location.bind();
|
||||
controls.bind();
|
||||
focus.bind();
|
||||
|
||||
dom.slides.addEventListener( 'transitionend', onTransitionEnd, false );
|
||||
dom.pauseOverlay.addEventListener( 'click', resume, false );
|
||||
@@ -507,6 +511,7 @@ export default function( revealElement, options ) {
|
||||
eventsAreBound = false;
|
||||
|
||||
touch.unbind();
|
||||
focus.unbind();
|
||||
keyboard.unbind();
|
||||
controls.unbind();
|
||||
progress.unbind();
|
||||
@@ -2438,6 +2443,7 @@ export default function( revealElement, options ) {
|
||||
isAutoSliding,
|
||||
isSpeakerNotes: notes.isSpeakerNotesWindow.bind( notes ),
|
||||
isOverview: overview.isActive.bind( overview ),
|
||||
isFocused: focus.isFocused.bind( focus ),
|
||||
isPrintingPDF: print.isPrintingPDF.bind( print ),
|
||||
|
||||
// Checks if reveal.js has been loaded and is ready for use
|
||||
@@ -2548,6 +2554,7 @@ export default function( revealElement, options ) {
|
||||
|
||||
// Controllers
|
||||
print,
|
||||
focus,
|
||||
progress,
|
||||
controls,
|
||||
location,
|
||||
|
||||
Reference in new issue
Block a user