EditorView.clickAddsSelectionRange using alt causes weird behaviors

[lishid]

Describe the issue

When using clickAddsSelectionRange to change the multiple selection behavior from using Ctrl to use Alt, there are several things that stops working:

• Adding a cursor by clicking on the empty area of the line doesn't work.
• Adding a cursor by clicking on the empty area of a wrapped line causes the first line to be selected.

CodeMirror try repro

import {basicSetup, EditorView} from "codemirror"
import {javascript} from "@codemirror/lang-javascript"

new EditorView({
  doc: "console.log('hello')console.log('hello')console.log('hello')console.log('hello')console.log('hello')console.log('hello')console.log('hello')console.log('hello')console.log('hello')\nconsole.log('hello')\nconsole.log('hello')\nconsole.log('hello')\nconsole.log('hello')\n",
  extensions: [basicSetup, javascript(),
               EditorView.lineWrapping,
    EditorView.clickAddsSelectionRange.of(evt => evt.altKey && !evt.ctrlKey && !evt.metaKey)],
  parent: document.body
})

Video: Note I am holding down Alt the entire time.

Browser and platform

Windows/Chrome

Reproduction link

No response

[marijnh]

Looks like you have the rectangular selection extension also enabled, which also wants to use alt clicks. Remove that from your set of extensions and things should work better.

[lishid]

Just tested it and it does seem to work better, thanks!