open local links in same tab

When navigating between different text documents
one does not expect to open new windows all the time.

Next steps:

* open in new tab on middle click.

Signed-off-by: Azul <azul@riseup.net>

src/marks/index.js

@@ -21,6 +21,8 @@
  */
 
 import { Bold, Italic as TipTapItalic, Strike as TipTapStrike, Link as TipTapLink } from 'tiptap-extensions'
+import { Plugin } from 'tiptap'
+import { getMarkAttrs } from 'tiptap-utils'
 import { domHref, parseHref } from './../helpers/links'
 
 /**
@@ -102,6 +104,33 @@ class Link extends TipTapLink {
 		}
 	}
 
+	get plugins() {
+		if (!this.options.openOnClick) {
+			return []
+		}
+
+		return [
+			new Plugin({
+				props: {
+					handleClick: (view, pos, event) => {
+						const { schema } = view.state
+						const attrs = getMarkAttrs(view.state, schema.marks.link)
+
+						if (attrs.href && event.target instanceof HTMLAnchorElement) {
+							event.stopPropagation()
+							const htmlHref = event.target.attributes.href.value
+							if (htmlHref.match(/^\?/)) {
+								window.location = htmlHref
+							} else {
+								window.open(attrs.href)
+							}
+						}
+					},
+				},
+			}),
+		]
+	}
+
 }
 
 /** Strike is currently unsupported by prosemirror-markdown */