Generate hyperlinks for Jira, Gitlab, ServiceNow or drupal.org and copy to clipboard

hyperlinks-markdown-jira.js

// ==UserScript==
// @name         Generate hyperlinks for Jira, Gitlab, ServiceNow or drupal.org and copy to clipboard
// @namespace    https://gist.github.com/fengtan/4493530e0989b896692d3804937e17a9
// @version      1.0
// @description  View a page on Jira, Gitlab, ServiceNow or drupal.org, and then hit Alt+M or Alt+J: this will build a markdown or jira-formatted hyperlink to the clipboard
// @author       fengtan
// @include      *gitlab*
// @include      *jira*/browse/*
// @include      *jira*/issues/*
// @include      *.service-now.com/*
// @include      *.drupal.org/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function copyToClipboard(copy) {
        // Copy to clipboard.
        const element = document.createElement('textarea');
        element.value = copy;
        element.setAttribute('readonly', '');
        element.style.position = 'absolute';
        element.style.left = '-9999px';
        document.body.appendChild(element);
        element.select();
        document.execCommand('copy');
        document.body.removeChild(element);

        // Inform user.
        alert("Copied to clipboard:\n\n"+copy);
    };

    document.addEventListener('keyup', function(e) {
        var event = window.event || e;

        // Listen for Alt key.
        if (event.altKey) {

            // Go through the list of supported URLs (see @include rules above) and extract hyperlink text & url.
            // The most reliable patterns go first (the format of ServiceNow urls is hard to predict).
            var href = window.location.href;
            var url;
            var text;
            if (href.indexOf('gitlab') > -1) {
                var jsonld = JSON.parse(document.querySelector('script[type="application/ld+json"]').innerText);
                var lastCrumb = jsonld.itemListElement.slice(-1).pop();
                url = lastCrumb.item;
                text = lastCrumb.name;
            } else if (href.indexOf('jira') > -1) {
                url = href;
                text = href.split("?")[0].split('/').slice(-1).pop();
            } else if (href.indexOf('service-now.com') > -1) {
                url = href;
                var xpath="//input[contains(@id, 'sys_readonly') and contains(@id, 'number')]/@value";
                var result = document.evaluate(xpath, document, null, XPathResult.STRING_TYPE, null);
                text = result.stringValue;
            } else if (href.indexOf('drupal.org') > -1) {
                url = href;
                text = href.split("?")[0].split('/').slice(-1).pop();
                if (!isNaN(text)) {
                    text = "#"+text;
                }
            } else {
                url = href;
                text = 'link';
            }

            switch (event.keyCode) {
                // Alt+M: build markdown and copy to clipboard.
                case 77:
                    copyToClipboard("[" + text + "](" + url + ")");
                    break;
                // Alt+J: build jira markup and copy to clipboard.
                case 74:
                    copyToClipboard("[" + text + "|" + url + "]");
                    break;
            }
        }
    }, false);
})();