Whent trying to upload/rename/create files in a folder that was removed
or rename, the correct error message is now shown.
In the case of upload of multiple files, the upload is cancelled.
This situation can happen if the target folder was renamed or removed
from another browser window or client.
The determineIcon() method was expecting attributes to be set which
caused warnings about undefined indices in the error log.
This fix pre-initializes the array with 'directory' and
'isPreviewAvailable' to make them disappear.
Whenever a file is renamed, if the extension changes, the mime type and
preview might change. This fix passes the updated info to the client
that updates it.
- show tooltip when violating naming constraints while typing
- when target filename exists on server fallback to dialog to interrupt the users flow because something unexpected went wrong
- fixes#5062
- also fixes some whitespace and codestyle issues in files js
- uses css selector over filterAttr in touched js files
