allowfullscreen
an HTML attribute for the iframe tag

What alternatives exist for fullscreen functionality if allowfullscreen is not used?

Answers:

  • If the allowfullscreen attribute is not used with iframes or elements, there are several alternatives to achieve similar fullscreen functionality. Here are some methods:

    1. JavaScript Fullscreen API:

      • The Fullscreen API allows elements to be displayed in fullscreen mode programmatically. You can use it on video elements, divs, etc. Here's a simple example:
      function openFullscreen(element) {
    if (element.requestFullscreen) {
        element.requestFullscreen();
    } else if (element.mozRequestFullScreen) { // Firefox
        element.mozRequestFullScreen();
    } else if (element.webkitRequestFullscreen) { // Chrome, Safari and Opera
        element.webkitRequestFullscreen();
    } else if (element.msRequestFullscreen) { // IE/Edge
        element.msRequestFullscreen();
    }
}

let elem = document.getElementById("myElement");
openFullscreen(elem);

    2. Using CSS for Fullscreen-like Layout:

      • You can use CSS to make an element take up the full viewport size, which can simulate a fullscreen experience without true fullscreen capabilities. Example:
      .fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999; /* Adjust as needed */
}

      You can attach this class to any element when the user wants to go fullscreen.

    3. Custom Modal Implementation:

      • Create a modal window that covers the entire screen. When a user clicks a button or link, you can display this modal with the content you'd like to show in fullscreen.

    4. Using Third-Party Libraries:

      • There are libraries and frameworks like Video.js, Plyr, or Fancybox that manage fullscreen functionality internally and might provide a better user experience.

    5. Responsive Design:

      • For functions that do not require true fullscreen, ensuring that your design is responsive can give an expansive feel, allowing content to adapt and use all available screen space.

    6. HTML5 Video Controls:

      • If you're working with HTML5 videos, it's important to leverage the built-in video controls that typically come with the <video> element in modern browsers which usually support fullscreen natively unless restricted.

    In most cases, the Fullscreen API will probably offer the best compatibility and user experience if you're looking for true fullscreen capabilities without using the allowfullscreen attribute.

Related Questions: