Bootstrap snippet. Resource efficient image zoom jQuery

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You can also download the HTML, CSS, and JS code.

HTML code

This is the html code used to create this bootstrap snippet, You can copy and paste the following html code inside a page with bootstrap 5.1.3 included, to get the result that you can see in the preview selection

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<!DOCTYPE html>
<html lang="en">
<head>
    <title>Resource efficient image zoom jQuery</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css" integrity="sha512-1ycn6IcaQQ40/MKBW2W4Rhis/DbILU74C1vSrLJxCq57o941Ym01SwNsOMqvEBFlcgUa6xLiPY/NS5R+E6ztJQ==" crossorigin="anonymous" referrerpolicy="no-referrer" />
</head>
<body>
<div class="container pt-5">
    <div class="row">
        <div class="col-12">
            <h1>Resource efficient image zoom jQuery</h1>
            <hr>
            <p>Initialize the plugin:</p>
            <textarea class="form-control mb-4" rows="3">$(document).ready(function () {
    $(document).find('[data-toggle="image-zoom"]').modalZoom();
});</textarea>
            <p>Element sample:</p>
            <textarea class="form-control mb-4" rows="8"><img
                    src="https://www.bootdey.com/image/150/000/fff?Text=mmltools.com"
                    data-toggle="image-zoom"
                    data-src="https://www.bootdey.com/image/1920x1080/000/fff?Text=mmltools.com"
                    data-caption="Test Caption"
                    data-description="Test description"
                    alt=""
                    class="mr-3 image-zoom" /></textarea>
            <p>Data elements:</p>
            <ul>
                <li><strong>src</strong> - Full or relative path to the thumbnail</li>
                <li><strong>data-toggle="image-zoom"</strong> - Tells the script that this image can be zoomed</li>
                <li><strong>data-src</strong> - Full or relative path to the big image</li>
                <li><strong>data-caption</strong> - Title of the image, if not set, it won't show anything</li>
                <li><strong>data-description</strong> - Description of the image, if not set, it won't show anything</li>
            </ul>
            <p>Click the image below:</p>
            <img src="https://www.bootdey.com/image/150/000/fff?Text=mmltools.com" data-toggle="image-zoom" data-src="https://www.bootdey.com/image/1920x1080/000/fff?Text=mmltools.com" data-caption="Test Caption" data-description="Test description" alt="" class="mr-3 image-zoom" />
        </div>
    </div>
</div>
</body>
<div style="position: fixed;bottom: 5%;right: 5%;padding: 1rem;background: #fff;border: 1px solid #e9ecef;border-radius: 0.35rem;color: #a9aeb3;box-shadow: 0 0 20px #e9ecef;">
    <h5 style="margin-bottom: 1rem;padding-bottom: 1rem;text-align: center;">Support my work @ MMLTech</h5>
    <div style="display: flex;align-items: center;">
        <a style="margin-right:1rem;background: #d1e6fd;display: block;padding: 1rem;border-radius: 0.25rem;border: 1px solid #e9ecef;color: #000;font-weight: bold;" href="https://ko-fi.com/mmltech" target="_blank"><img src="https://storage.ko-fi.com/cdn/Kofi_Logo_Blue.svg" width="60px"/> Buy me a coffee</a>
        <a style="background: #d1e6fd;display: block;padding: 1rem;border-radius: 0.25rem;border: 1px solid #e9ecef;color: #000;font-weight: bold;" href="https://obscountdown.com" target="_blank"><img src="https://streamcd.net/Assets/images/logo-white.png" width="60px" height="19px" /> My projects</a>
    </div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
</html>

CSS code

This is the css code used to create this bootstrap snippet, You can copy and paste the following css code inside a page with bootstrap 5.1.3 included, to get the result that you can see in the preview selection

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.image-zoom-modal .modal-fit-content {
  max-width: 70%;
  width: -moz-fit-content;
  width: fit-content;
}
.image-zoom-modal .modal-fit-content .image-zoom-out {
  max-width: 100%;
  cursor: zoom-out;
}

.image-zoom {
  cursor: zoom-in;
}

/*# sourceMappingURL=style.css.map */

Javascript/Jquery code

This is the javascript code used to create this bootstrap snippet, You can copy and paste the following javascript code inside a page with bootstrap 5.1.3 included, to get the result that you can see in the preview selection

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(function($){
    $.fn.modalZoom = function(options) {

        let caption = "",
            description = "",
            src = "";

        let ShowModal = function(){
            let modal_element = $('<div class="modal image-zoom-modal" tabindex="-1" role="dialog" id="DonationModal"></div>'),
                dialog_element = $('<div class="modal-dialog modal-fit-content" role="document"></div>'),
                content_element = $('<div class="modal-content"></div>'),
                body_element = $('<div class="modal-body mt-4"></div>'),
                src_element = $('<img class="image-zoom-out">'),
                caption_element = $('<h4 class="image-zoom-caption">' + caption + '</h4>'),
                description_element = $('<p class="image-zoom-description">' + description + '</p>'),
                close_element = $('<button type="button" class="close modal-close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>');

            close_element.css({
                position: "absolute",
                right: "5px",
                opacity: 1
            });
            if(src.length > 0)
            {
                src_element.attr("src", src);
                body_element.append(src_element);
            }
            if(caption.length > 0)
                body_element.append(caption_element);
            if(src.length > 0)
                body_element.append(description_element);

            content_element.append(close_element);
            content_element.append(body_element);
            dialog_element.append(content_element);
            modal_element.append(dialog_element);

            $("body").append(modal_element);
            modal_element.modal("show");
        };

        let build = function (e) {
            /**
             * Build the modal using the dom element data items
             */
            $(e).on("click", function () {
                caption = $(this).attr("data-caption");
                description = $(this).attr("data-description");
                src = $(this).attr("data-src");
                ShowModal();
            });

            /**
             * Close the modal if zoom-out image is clicked
             */
            $(document).on("click", ".image-zoom-out", function () {
               $(document).find(".modal").modal("hide");
            });

            /**
             * Remove the modal from DOM
             */
            $(document).on("hidden.bs.modal", ".image-zoom-modal", function () {
               $(this).remove();
            })
        };

        return this.each(function() {
            return new build(this);
        });

    };
})(jQuery);

$(document).ready(function () {
    $(document).find('[data-toggle="image-zoom"]').modalZoom();
});
 

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Bootstrap Resource efficient image zoom jQuery example

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This snippet currectly have 153 views, Using this bootstrap snippet you have the following benefits:

Bootstrap 5.1.3

This snippet is based on bootstrap 5.1.3 and the grid system of this framework

Responsive

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Crossbrowser compatibility

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Jquery plugins

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