Merge lp://qastaging/~elementary-pantheon/scratch/confirm-heavy-files into lp://qastaging/~elementary-apps/scratch/scratch

Maybe a couple inline comments

Okay, here is a more elegant version :)

I'm not sure this is a great metric. For example the Scratch binary is under 1MB as are a number of other apps. It catches the one case, I dunno if it completely solves the issue of dropping in a binary.

I'm also not sure AlertView is the right widget for this. There's no obvious way to cancel.

This is not fixing the binary problem but loading very large files that just make Scratch crash. Well as any file you open, the way to "cancel" is to close the tab.

I needed to merge the trunk before it would build (although there were no conflicts).

Since AlertView is presumably intended for some kind of warning, it is strange that the option for a cancel button is missing but that should be fixed in Granite if required. It would also make sense for the font sizes to match those in the Welcome widget.

It would be good to combine the check with one for content-type but that could be left to another branch.

The branch works as described but in my opinion the phrase "very heavy files" may be mistranslated and should be something more specific such as "files exceeding 1Mb in size" so the user knows which files they *can* open.