chuckya/app/javascript/themes/glitch/util/fullscreen.js

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JavaScript
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// APIs for normalizing fullscreen operations. Note that Edge uses
// the WebKit-prefixed APIs currently (as of Edge 16).
export const isFullscreen = () => document.fullscreenElement ||
document.webkitFullscreenElement ||
document.mozFullScreenElement;
export const exitFullscreen = () => {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
}
};
export const requestFullscreen = el => {
if (el.requestFullscreen) {
el.requestFullscreen();
} else if (el.webkitRequestFullscreen) {
el.webkitRequestFullscreen();
} else if (el.mozRequestFullScreen) {
el.mozRequestFullScreen();
}
};
export const attachFullscreenListener = (listener) => {
if ('onfullscreenchange' in document) {
document.addEventListener('fullscreenchange', listener);
} else if ('onwebkitfullscreenchange' in document) {
document.addEventListener('webkitfullscreenchange', listener);
} else if ('onmozfullscreenchange' in document) {
document.addEventListener('mozfullscreenchange', listener);
}
};
export const detachFullscreenListener = (listener) => {
if ('onfullscreenchange' in document) {
document.removeEventListener('fullscreenchange', listener);
} else if ('onwebkitfullscreenchange' in document) {
document.removeEventListener('webkitfullscreenchange', listener);
} else if ('onmozfullscreenchange' in document) {
document.removeEventListener('mozfullscreenchange', listener);
}
};