How to Make a Window Full Screen with Javascript (Stretching All over the Screen)
Introduction
Achieving a full-screen experience for your website visitors is crucial for immersive content. In the past, this was challenging due to browser compatibility issues. However, with the advent of modern browsers and advancements in JavaScript, it has become possible to make a window go full screen with relative ease.
Solution
To make a visitor's browser go full screen using JavaScript, you can leverage the following approach:
function requestFullScreen(element) {
// Supports most browsers and their versions.
var requestMethod = element.requestFullScreen || element.webkitRequestFullScreen || element.mozRequestFullScreen || element.msRequestFullScreen;
if (requestMethod) { // Native full screen.
requestMethod.call(element);
} else if (typeof window.ActiveXObject !== "undefined") { // Older IE.
var wscript = new ActiveXObject("WScript.Shell");
if (wscript !== null) {
wscript.SendKeys("{F11}");
}
}
}
var elem = document.body; // Make the body go full screen.
requestFullScreen(elem);
Explanation
- The requestFullScreen() function checks for the native full screen request methods supported by different browsers.
- If a native method is available, it calls that method on the specified element (in this case, the body element to make the entire page full screen).
- For older versions of Internet Explorer, it uses an ActiveXObject to send the F11 keystroke, which triggers the full screen mode.
Additional Notes
- Full screen mode requires user consent, so it's important to have a user-initiated action (e.g., a button click) to trigger the request.
- Some older browsers may not fully support this functionality, so it's recommended to check browser compatibility before implementing this solution.
Reference
- [Using full-screen mode | MDN](https://developer.mozilla.org/en/DOM/Using_full-screen_mode)
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