Broken with multiple TinyMCE ( patch idea)

Briefly, the problem was that when you have more than one tinyMCE editor in the post editing window, clicking a language switching tab would clear the contents of the editor. This was the case only in Visual (tinyMCE) mode.

I dug into the problem.

When switching a language tab, mqTranslate javascript calls TinyMCE.triggerSave(), which triggers qtrans_hook_on_tinyMCE, which in turn calls qtrans_save(e.content) for ALL TinyMCE editors.

qtrans_save puts the contents of the last TinyMCE editor processed in the #content textarea, which is later read by switchEditors.go when updating the current value of the tinyMCE editor (to the language that was just selected).

How I fixed it manually was change one line in qtrans_hook_on_tinyMCE like this:
if (!ed.isHidden()) => if (ed.id == 'qtrans_textarea_content' && !ed.isHidden())

An alternative solution would be to call editor.save() for the relevant editor instead of calling tinyMCE.triggerSave() that saves all editors.

Let me know if you need extra info.

https://ww.wp.xz.cn/plugins/mqtranslate/