wp.mce.views with focus causes JS errors when toggling visual editor view

[Clorith]

As reported by @maniu in ​https://wordpress.org/support/topic/wpmceviews-update-switching-visualtextvisual-causes-appendchild-js-error

When switching views between visual and text mode in the post editor the visual editor will fail to render upon toggle if a view was currently active/had focus when you moved away from the visual mode.

In previous versions we appear to move the focus in the editor to the first point before the view element when we change views.

[azaozz]

Caused by trying to remove a view that doesn't exist any more as we reload the editor content (and recreate all views) on switching Text => Visual.

[azaozz]

In 31998.patch:

• Remove selected views when inserting content but not when loading all content.
• Remove the ref. to the selected view node on resetting the views.

[iseulde]

Patch works well here and solves the problem.

[ocean90]

Looks good.

[azaozz]

In 32140:

TinyMCE wpView:

• Remove selected views when inserting content but not when loading all content.
• Remove the ref. to the selected view node on resetting the views.

Fixes #31998.

[ianatkins]

Did this make it into 4.2.2? I'm experiencing similar issues.

[azaozz]

Replying to ianatkins:

Of course: https://core.trac.wordpress.org/browser/tags/4.2.2/src/wp-includes/js/tinymce/plugins/wpview/plugin.js#L186

If you're seeing similar problems, please open a new ticket with steps to reproduce.