Refreshing canvas with new javascript content following an ajax request

Issue: When using ajax driven pagination to load canvas based portfolio items, script tags are not within the canvas tags.

Attempted Solution: Tried placing script tags before canvas tags, but scripts still did not load (seems to be a loading script issue).

Investigation: Discovered that it is a security issue preventing the retrieval of scripts when using ajax calls, referred to this Stack Overflow post on "jquery script not working".

Potential workaround: Considering adding canvas content from outside canvas tags, but faced with challenges in passing dynamically created portfolio title tags.

Code:


    <ul id="products-list">
        <?php
            $i = 0;
            while($the_list->have_posts()): $the_list->the_post(); //wordpress loops through posts
        ?>

        <li  class="product-item<?php echo $i;?>">
            <script>functionForMakingACanvasOverlayUsingThePostTitle("<?php echo get_the_title() ?>");</script>
            <canvas></canvas>
        </li>

        <?php $i++; ?>

    <?php endwhile; ?>
    </ul>

The current setup displays 6 items per page and uses ajax for loading the next set of 6 items.

Any suggestions or advice would be greatly appreciated. Thank you.

Answer №1

You cannot incorporate JavaScript code using AJAX without resorting to the controversial eval method. However, in your specific scenario, there is a better approach. Instead of directly calling the JavaScript, you should invoke external JavaScript on an object. The snippet you've provided is quite brief, so the example below is purely illustrative and may require adaptation to fit your actual requirements:

<canvas><div id="mytitle"></div></canvas>
<script>
    function drawTitleOverlay(title){
        var titleoverlayhtml = buildTitleOverlayHTMLFromTitle(title);
        document.getElementById('mytitle').innerHTML = titleoverlayhtml;
    }

    function nextPage(){
        var data = getAJAXData();
        var title = getTitleFromData(data);
        drawTitleOverlay(title);
    }
</script>

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