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How to Handle Printing Events Across Browsers Without onbeforeprint() and onafterprint()?

Susan Sarandon
Release: 2024-11-02 00:11:02
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How to Handle Printing Events Across Browsers Without onbeforeprint() and onafterprint()?

Alternative to onbeforeprint() and onafterprint() for Cross-Browser Printing Events

The events onbeforeprint() and onafterprint() are supported by Internet Explorer, but they lack cross-browser compatibility. This article explores an alternative approach that utilizes more modern and widely supported technologies.

To implement a browser-agnostic solution for intercepting print events, consider using a combination of the window.matchMedia API and window.onbeforeprint or window.onafterprint. window.matchMedia allows you to detect when specific CSS media queries, such as print, are satisfied.

Here's a sample code snippet that illustrates this approach:

<code class="javascript">if ('matchMedia' in window) {
    // Chrome, Firefox, and IE 10+ support mediaMatch listeners
    window.matchMedia('print').addListener(function(media) {
        if (media.matches) {
            beforePrint();
        } else {
            // Fires immediately, so wait for the first mouse movement
            $(document).one('mouseover', afterPrint);
        }
    });
} else {
    // IE and Firefox fire before/after events
    $(window).on('beforeprint', beforePrint);
    $(window).on('afterprint', afterPrint);
}</code>
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By combining matchMedia and onbeforeprint/onafterprint, this solution provides a cross-browser way to detect and respond to print events. Note that multiple calls to beforePrint() and afterPrint() may occur in some browsers, depending on the print behavior.

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