https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=30474

--- Comment #15 from Owen Leonard <[email protected]> ---
Created attachment 134610
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=134610&action=edit
Bug 30474: (follow-up) Tie editor initialization to tab activation

The way Bootstrap tabs manipulate the DOM, CodeMirror has problems
initializing correctly, I think because of redraws and CodeMirror's
attemps to position things absolutely.

The solution seems to be to wait until after a Bootstrap tab has
activated before initializing the CodeMirror instance. This patch
implements that, along with a check to prevent double-initializing the
same textarea.

I've also made a similar change to the way TinyMCE is initialized, which
I hope will help with the issue of the editor not always loading
correctly.

To test, apply the patch and go to Tools -> HTML customizations.

- Test creation and editing of HTML customization entries using both
  the default editor and the text editor (Edit -> Edit with text
  editor).
- Verify that the editor (CodeMirror or TinyMCE) loads correctly and
  looks correct, both upon page load and upon switching tabs between
  "Default" and other language tabs
- Verify that your edits are saved correctly.

Signed-off-by: Lucas Gass <[email protected]>
Signed-off-by: Martin Renvoize <[email protected]>

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