TinyMCE custom plugin breaking in 5.1.2

Plone Support Add-on Development
1

I have a custom plugin that works in Plone 5.1 but breaks in 5.1.2. I believe you updated the version of tinymce between these releases. I don't think it's a problem with my plugin.js - even if that is blank, tinymce fails to render at all if I have any value in the custom_plugins section.

The error message varies by browser and might be related to https://github.com/tinymce/tinymce/issues/3670

  • Firefox: TypeError: editor.getDoc(...) is null
  • Google Chrome: Uncaught TypeError: Cannot read property 'documentElement' of null

Has anyone been able to use a custom plugin in 5.1.2 at all? And if so, did you have to change the config on the Plone side?

2

it seems dubious, the issue is closed, the fix is not explicited but from the post dates it could be this release, probably
' bug where various api calls would be throwing exceptions if they where invoked on a removed editor instance.'
The Tinymce version for 5.1.1 is 4.7.6 so this particular bug should be fixed.

Currently my take on this problem is here.

3

Plone 5.1.4 has a new version of TinyMCE which thankfully has an error message on failed plugins that finally made the problem clear to me.

http://localhost:8082/newjersey/++plone++static/components/tinymce-builded/js/tinymce/tinymce_latex/editor_plugin.js

Obviously that's no good - that's the location of Plone's TinyMCE build and my custom plugin certainly doesn't live there. Looking in Plugins and Toolbars -> Custom Plugins I have this entry:

latex|tinymce_latex/editor_plugin.js

(This is in skins for now). So while on previous versions of plone this was taken to be a path relative to the portal root, it is now taken to be relative to the path of the tinymce build. I need to change it to

latex|../../../../../tinymce_latex/editor_plugin.js

This seems a bit silly, but it works. Is there a good reason why Plone can't assume this is relative to the portal root?

FYI the change in TinyMCE API proved to not be relevant to my case.