The Document.fullscreenEnabled read-only property returns a Boolean that reports whether or not full-screen mode is available. Full screen mode is available only for a page that has no windowed plug-ins in any of its documents, and if all <iframe> elements which contain the document have their allowfullscreen attribute set.
Although this property is read-only, it will not throw if it is modified (even in strict mode); the setter is a no-operation and it will be ignored.
Syntax
var isFullscreenAvailable = document.fullscreenEnabled;
On return, isFullscreenAvailable is true if the document can be put into full-screen mode.
Example
function requestFullScreen() {
if (document.fullscreenEnabled) {
videoElement.requestFullScreen();
} else {
console.log('Your browser cannot use fullscreen right now');
}
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| Fullscreen API The definition of 'Document.fullscreenEnabled' in that specification. |
Living Standard | Initial definition |