https://blog.coach.me/wp-content/plugins/convertkit/resources/backend/js/quicktags.js?ver=3.4.4

1/**
2 * Registers Blocks in the text editor as QuickTag Buttons.
3 *
4 * @since   1.9.6
5 *
6 * @author ConvertKit
7 */
8
9for (const block in convertkit_quicktags) {
10	convertKitQuickTagRegister(convertkit_quicktags[block]);
11}
12
13/**
14 * Registers the given block as a Quick Tag, with a button in
15 * the Text Editor toolbar.
16 *
17 * @since 	1.9.6
18 *
19 * @param {Object} block Block.
20 */
21function convertKitQuickTagRegister(block) {
22	QTags.addButton('convertkit-' + block.name, block.title, function () {
23		// Perform an AJAX call to load the modal's view.
24		fetch(
25			convertkit_admin_tinymce.ajaxurl +
26				'/' +
27				block.name +
28				'/' +
29				'quicktags',
30			{
31				method: 'GET',
32				headers: {
33					'X-WP-Nonce': convertkit_admin_tinymce.nonce,
34				},
35			}
36		)
37			.then(function (response) {
38				return response.json();
39			})
40			.then(function (result) {
41				// Show Modal.
42				convertKitQuickTagsModal.open();
43
44				// Get Modal.
45				const quicktagsModal = document.querySelector(
46						'div.convertkit-quicktags-modal div.media-modal.wp-core-ui'
47					),
48					quicktagsModalHeader = quicktagsModal.querySelector(
49						'div.media-frame-title'
50					),
51					quicktagsModalFooter = quicktagsModal.querySelector(
52						'div.media-frame-toolbar div.media-toolbar'
53					);
54
55				// Resize Modal so it's not full screen.
56				quicktagsModal.style.width = block.modal.width + 'px';
57				quicktagsModal.style.height =
58					block.modal.height +
59					quicktagsModalHeader.offsetHeight +
60					quicktagsModalFooter.offsetHeight +
61					'px'; // Prevents a vertical scroll bar.
62
63				// Set Title.
64				document.querySelector(
65					'#convertkit-quicktags-modal .media-frame-title h1'
66				).textContent = block.title;
67
68				// Inject HTML into modal.
69				document.querySelector(
70					'#convertkit-quicktags-modal .media-frame-content'
71				).innerHTML = result;
72
73				// Initialize tabbed interface.
74				convertKitTabsInit();
75
76				// Listen for color input changes.
77				convertKitColorInputInit();
78
79				// Initialize conditional fields.
80				convertKitConditionallyDisplayTinyMCEModalFields();
81
82				// Listen for field changes.
83				convertKitConditionalFieldsInit();
84
85				// Bind refresh resource event listeners.
86				convertKitRefreshResourcesInitEventListeners();
87			})
88			.catch(function (error) {
89				console.error(error);
90			});
91	});
92}