archived-linsa/web/components/la-editor/extensions/link/link.ts

import { mergeAttributes } from "@tiptap/core"
import TiptapLink from "@tiptap/extension-link"
import { EditorView } from "@tiptap/pm/view"
import { getMarkRange } from "@tiptap/core"
import { Plugin, TextSelection } from "@tiptap/pm/state"

export const Link = TiptapLink.extend({
	/*
	 * Determines whether typing next to a link automatically becomes part of the link.
	 * In this case, we dont want any characters to be included as part of the link.
	 */
	inclusive: false,

	/*
	 * Match all <a> elements that have an href attribute, except for:
	 * - <a> elements with a data-type attribute set to button
	 * - <a> elements with an href attribute that contains 'javascript:'
	 */
	parseHTML() {
		return [{ tag: 'a[href]:not([data-type="button"]):not([href *= "javascript:" i])' }]
	},

	renderHTML({ HTMLAttributes }) {
		return ["a", mergeAttributes(this.options.HTMLAttributes, HTMLAttributes), 0]
	},

	addOptions() {
		return {
			...this.parent?.(),
			openOnClick: false,
			HTMLAttributes: {
				class: "link"
			}
		}
	},

	addProseMirrorPlugins() {
		const { editor } = this

		return [
			...(this.parent?.() || []),
			new Plugin({
				props: {
					handleKeyDown: (view: EditorView, event: KeyboardEvent) => {
						const { selection } = editor.state

						/*
						 * Handles the 'Escape' key press when there's a selection within the link.
						 * This will move the cursor to the end of the link.
						 */
						if (event.key === "Escape" && selection.empty !== true) {
							editor.commands.focus(selection.to, { scrollIntoView: false })
						}

						return false
					},
					handleClick(view, pos) {
						/*
						 * Marks the entire link when the user clicks on it.
						 */

						const { schema, doc, tr } = view.state
						const range = getMarkRange(doc.resolve(pos), schema.marks.link)

						if (!range) {
							return
						}

						const { from, to } = range
						const start = Math.min(from, to)
						const end = Math.max(from, to)

						if (pos < start || pos > end) {
							return
						}

						const $start = doc.resolve(start)
						const $end = doc.resolve(end)
						const transaction = tr.setSelection(new TextSelection($start, $end))

						view.dispatch(transaction)
					}
				}
			})
		]
	}
})

export default Link