Userscript to add a handy button to Trove works and versions to save permalink to clipboard.

trove_copy_permalink.user.js

// ==UserScript==
// @name         Trove Copy Permalink
// @namespace    http://timsherratt.org/trovecopypermalink
// @version      0.1.2
// @description  Add a button to Trove works/versions to easily save permalink to clipboard
// @author       Tim Sherratt (@wragge)
// @match        http://trove.nla.gov.au/work/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    function copyToClipboard() {
        // This function will be called when you click on the 'copy to clipboard' button
        // Clipboard stuff copied from https://developers.google.com/web/updates/2015/04/cut-and-copy-commands
        var range = document.createRange();
        range.selectNode(link);
        window.getSelection().addRange(range);
        try {
            // Now that we've selected the link, execute the copy command
            var successful = document.execCommand('copy');
            var msg = successful ? 'successful' : 'unsuccessful';
            // Log the result of the copy command
            console.log('Copy link command was ' + msg);
            // Change the button text
            button.textContent = 'copied!';
        } catch(err) {
            console.log('Oops, unable to copy');
        }
        // Remove the selections
        window.getSelection().removeAllRanges();
    }
    // Find the permalink bookmark
    var link = document.querySelector('dl.details dd a');
    // If there's a permalink, add a button
    if (link !== null) {
        // Create a button element
        var button = document.createElement('button');
        // Text for the button
        var copyText = document.createTextNode('copy to clipboard');
        // A bit of space to offset button from link
        var spacer = document.createTextNode(' ');
        // Add the text to the button
        button.appendChild(copyText);
        // Add the copyToClipboard() function to the button's click event
        button.onclick = copyToClipboard;
        // Reset the text of the button
        button.onmouseenter = function() { button.textContent = 'copy to clipboard'; };
        // Set the style of the button
        button.style.cursor = "pointer";
        button.style.color = "#ffffff";
        button.style.backgroundColor = "#690";
        button.style.border = "None";
        button.style.padding = "4px";
        button.style.borderRadius = "4px";
        // Add the spacer after the bookmark link
        link.parentElement.appendChild(spacer);
        // Add the button after the spacer
        link.parentElement.appendChild(button);
    }
})();

See here for some information on installing userscripts: http://timsherratt.org/digital-heritage-handbook/docs/installing-userscripts/

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