Interact Could Warn if Resize is Enabled But All Edges Are Disabled

[machineghost]

I'm an Interact.js n00b, and I just recently lost a bit of time because I made the mistake of enabling resizing, but not setting any edges. Debugging this was tricky because the library still fired resize events ... but rect never changed and deltaRect was all 0's.

Eventually by experimenting with the options I figured the problem out, but as a convenience to newer users it might be nice to give some sort of warning when a resize event triggers and and interact instance has resizing enabled but does not have any edges enabled. Since this is sort of a garbage case anyway (what's the point of turning resizing on if you can't resize?) this might even warrant throwing an exception.

Just a thought. Regardless, thanks for writing Interact.js!

[taye]

I see the value in this but a lot of people are opposed to harmless warnings (#240, #277) so I'll have to refuse. I'll try to remember to add an entry to the FAQ or elsewhere in the docs though.

Thanks for bringing this up.

[machineghost]

Thanks, at least that's better than nothing.

Just out of curiosity, what is the legitimate use case for this scenario (ie. why not just make it throw an exception instead of a warning, if it's a case that should never occur)?

[taye]

Having all edges disabled could be used to intentionally disable resizing so it's worth allowing it to happen.