Is there a way to trigger javascript on Amazon once the "Next Page" button is clicked?

My Greasemonkey script is designed to run on Amazon's search results page. However, I've noticed that when the "Next Page" button is clicked and new results are dynamically loaded, my script only executes once after the initial page load.

Here's an example scenario: If I visit an Amazon page like this one and my script processes the results, clicking the "Next Page" link at the bottom of the page causes the script to stop working because it doesn't apply to the updated results.

I'm looking for a solution to ensure that my script can handle the new set of results whenever they are loaded due to user interaction with the pagination links. How can this be achieved?

javascriptajaxgreasemonkey

Answer №1

When Amazon updates the results using AJAX, it does not trigger the hashchange event or change the title.

However, there is a solution for this - you can utilize the waitForKeyElements() utility.

For instance, take a look at this basic script that modifies the color of the results:

// ==UserScript==
// @name     _Amazon: Stripe Search Results
// @include  http://www.amazon.com/s/*
// @require  http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js
// @require  https://gist.github.com/raw/2625891/waitForKeyElements.js
// @grant    GM_addStyle
// ==/UserScript==
/*- The @grant directive is needed to work around a design change
    introduced in GM 1.0.   It restores the sandbox.
*/
waitForKeyElements("#searchTemplate div.results div.result", stripeAlternateRows);

function stripeAlternateRows(jNode) {
    var rezRow = jNode.attr("id").replace(/result_/, "");
    rezRow = parseInt(rezRow, 10) || 0;

    if (rezRow % 2) {
        //-- Color every odd row.
        jNode.css("background", "#EEFFEE");
    }
}

Reference:

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