Set language from context when using copy endpoint

[tmkarlsen]

Copy endpoint flow

Ensure the language from context (NDLA = articles) is set when opening CA to create copies. Edlib (Hub) seems to have gotten this info, as it displays the correct language in the header.
Note: this is the same behavior as when new content is created today -> the language from the article is set within CA + H5P.

Desired solution:

• the language selector in Edlib should be set according to article language
• the language selector in H5P settings and texts should be set according to article language

Screenshot shows the desired outcome

[chrieinv]

@tmkarlsen
In the image above, you had Norwegian Bokmål selected in the NDLA editor, and used the copy function on a Norwegian Nynorsk content, and this should cause the two language selectors to show Norwegian Bokmål?

[tmkarlsen]

@chrieinv my bad.

• The image above shows the desired outcome (header is edited to describe this now)

• The desired solution is now described in the unordered list in the text (also edited to be more precise)

[chrieinv]

The translations in the "Texts overrides and translations" section in the H5P are stored in the H5P content. The switching of language is handled by the H5P editor in JavaScript when the user selects a different language from the dropdown. It may be possible to trigger this change after the H5P editor and H5P content are loaded, but a dialog will appear. This may also be possible to handle in JavaScript, but the user experience will not be good.

The other option is to copy the code that does the handling, this however increases the complexity when updating H5P Editor as we must verify that the code hasn't changed.