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-rw-r--r--ext/mixed/js/dom.js18
1 files changed, 18 insertions, 0 deletions
diff --git a/ext/mixed/js/dom.js b/ext/mixed/js/dom.js
index 05764443..59fea9f6 100644
--- a/ext/mixed/js/dom.js
+++ b/ext/mixed/js/dom.js
@@ -77,6 +77,24 @@ class DOM {
return (typeof key === 'string' ? (key.length === 1 ? key.toUpperCase() : key) : '');
}
+ static addFullscreenChangeEventListener(onFullscreenChanged, eventListenerCollection=null) {
+ const target = document;
+ const options = false;
+ const fullscreenEventNames = [
+ 'fullscreenchange',
+ 'MSFullscreenChange',
+ 'mozfullscreenchange',
+ 'webkitfullscreenchange'
+ ];
+ for (const eventName of fullscreenEventNames) {
+ if (eventListenerCollection === null) {
+ target.addEventListener(eventName, onFullscreenChanged, options);
+ } else {
+ eventListenerCollection.addEventListener(target, eventName, onFullscreenChanged, options);
+ }
+ }
+ }
+
static getFullscreenElement() {
return (
document.fullscreenElement ||