check_plain().
Add carefulness when using $file.
Handle removal of files from slideshow_slide to avoid orphan slides.
Better name and doc.
WIP, handle removal of a slide.
Cleaner code.
Docs.
Docs.
Skeleton to retrieve widget identifier for a node.
Merge branch 'SCHOLAR-3.x' of github.com:openscholar/openscholar into SCHOLAR-3.x
Merge branch 'SCHOLAR-3.x' into 5720-shushu
Irrelevant.
Remove on viewing the widget.
Delete node when deleting slide.
Better namings.
Merge pull request #5788 from openscholar/5720-shushu

Handle removing files related to slideshows