Copy issue key and title for creating git branch

jira-helper.user.js

// ==UserScript==
// @name         Jira: helper
// @namespace    https://gist.github.com/Bonno/7519fe74b51615b1db302b51dc05549a/raw/52f500ceb603800a98c0abb15bda45372ed9361e/jira-helper.user.js
// @version      1.0.0
// @description  features: 1. copy issue key and title for creating git branch
// @author       Rain Chen / Bonno
// @license      MIT
// @match        https://*.atlassian.net/secure/*
// @match        https://*.atlassian.net/browse/*
// @grant        none

// @require      https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/1.7.1/clipboard.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/notify/0.4.2/notify.min.js

// ==/UserScript==

(function($, JIRA) {
    'use strict';

    function addCopyButton() {
      //console.info('addCopyButton');
      
      var container = $('#jira-issue-header-actions>div').first();
      if (typeof container == 'undefined') {
          //console.info('container is undefined');
      }
      if(!$('#clipboardKeyBtn').next().length) {
        $('#clipboardKeyBtn').remove();
        container.prepend("<a id='clipboardKeyBtn' class='btn aui-button aui-button-primary aui-style'>Copy issue key</a>");
      }

      if(!$('#clipboardBtn').next().length) {
        $('#clipboardBtn').remove();
        container.prepend("<a id='clipboardBtn' class='btn aui-button aui-button-primary aui-style'>Copy issue title</a>");
      }
    }

    function getIssueFullTitle () {
      var issueKey = getIssueKey();
      var issueTitle = $("h1[data-test-id='issue.views.issue-base.foundation.summary.heading']").text();
      return '[' + issueKey + '] ' + issueTitle;
    }

    function getIssueKey () {
      var issueKey = "";
      if($('div[data-test-id="issue.views.issue-base.foundation.breadcrumbs.breadcrumb-current-issue-container"]').find('a').length){
        issueKey = $('div[data-test-id="issue.views.issue-base.foundation.breadcrumbs.breadcrumb-current-issue-container"]').find('a').text();
      }
      if($('#key-val').length){
        issueKey = $('#key-val').text();
      }

      return issueKey;
    }

    function handleCopyButton () {
      //console.info('handleCopyButton');

      var clipboard = new Clipboard('#clipboardBtn', {
        text: function(trigger) {
          return getIssueFullTitle();
        }
      });

      clipboard.on('success', function(e) {
        $.notify("Copied to clipboard", "success");
        $.notify(getIssueFullTitle(), "success");
      });

      clipboard.on('error', function(e) {
        $.notify("Access granted", "error");
      });
        
      var clipboardKey = new Clipboard('#clipboardKeyBtn', {
        text: function(trigger) {
          return getIssueKey();
        }
      });

      clipboardKey.on('success', function(e) {
        $.notify("Copied to clipboard", "success");
        $.notify(getIssueKey(), "success");
      });

      clipboard.on('error', function(e) {
        $.notify("Access granted", "error");
      });
    }

    function init() {
      //console.info("init");
      updateHandlers();
      handleCopyButton();
      addCopyButton();

      JIRA.bind(JIRA.Events.NEW_CONTENT_ADDED, function() {
        updateHandlers();
      });
    }

    function updateHandlers() {
      //console.info('updateHandlers');
      addCopyButton();
    }

    // init when page ready
    document.onreadystatechange = function() {
      if (document.readyState == "complete") {
        //init();
        var checkExist = setInterval(function() {
          if ($('#jira-issue-header-actions>div').length) {
            //console.info("Exists!");
            clearInterval(checkExist);
            init();
          }
        }, 100);
      }
    };


})(window.jQuery, window.JIRA);