Different downstream bugreport mention problems with ristretto not loading a specific image when the problem actually is inside gdk-pixbuf, or the mime-type not being detected correctly. Ristretto should show a message to the user to indicate a failure.
Created attachment 4241 Reports errors with broken images This patch adds the feature to report image-loading errors to the user.
IMO: The image-viewer widget should show the error as a tooltip when there is one. What do you think?
Created attachment 4242 Report errors with broken images and show 'image-missing' icon. Also, set the tooltip for the image-viewer widget.
This patch is applied to master and the 0.3 branch.
i'm wondering whether it would be good to use the gtk infobar widget for that. at least it seems like a reasonable usecase for it.