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refactor: drop vendor-prefixed Page Visibility API support #8638

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Merged
willeastcott merged 1 commit into from
Apr 22, 2026
Merged

refactor: drop vendor-prefixed Page Visibility API support #8638

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21 changes: 2 additions & 19 deletions src/framework/app-base.js
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Original file line number Diff line number Diff line change
Expand Up @@ -556,22 +556,8 @@ class AppBase extends EventHandler {

this._visibilityChangeHandler = this.onVisibilityChange.bind(this);

// Depending on browser add the correct visibilitychange event and store the name of the
// hidden attribute in this._hiddenAttr.
if (typeof document !== 'undefined') {
if (document.hidden !== undefined) {
this._hiddenAttr = 'hidden';
document.addEventListener('visibilitychange', this._visibilityChangeHandler, false);
} else if (document.mozHidden !== undefined) {
this._hiddenAttr = 'mozHidden';
document.addEventListener('mozvisibilitychange', this._visibilityChangeHandler, false);
} else if (document.msHidden !== undefined) {
this._hiddenAttr = 'msHidden';
document.addEventListener('msvisibilitychange', this._visibilityChangeHandler, false);
} else if (document.webkitHidden !== undefined) {
this._hiddenAttr = 'webkitHidden';
document.addEventListener('webkitvisibilitychange', this._visibilityChangeHandler, false);
}
document.addEventListener('visibilitychange', this._visibilityChangeHandler, false);
}

// bind tick function to current scope
Expand Down Expand Up @@ -1247,7 +1233,7 @@ class AppBase extends EventHandler {
* @returns {boolean} True if the application is not visible and false otherwise.
*/
isHidden() {
return document[this._hiddenAttr];
return document.hidden;
}

/**
Expand Down Expand Up @@ -1867,9 +1853,6 @@ class AppBase extends EventHandler {

if (typeof document !== 'undefined') {
document.removeEventListener('visibilitychange', this._visibilityChangeHandler, false);
document.removeEventListener('mozvisibilitychange', this._visibilityChangeHandler, false);
document.removeEventListener('msvisibilitychange', this._visibilityChangeHandler, false);
document.removeEventListener('webkitvisibilitychange', this._visibilityChangeHandler, false);
}
this._visibilityChangeHandler = null;

Expand Down