Add file filtering to gtk dialogs. #903
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Generally looks good, just a few things. Also, please add a changelog entry.
druid/examples/open_save.rs
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| .allowed_types(vec![txt, other]) | ||
| .default_type(txt); |
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Let's reverse the vector to [other, txt] so that this sample can show the default type working. Does it work for you? On my Ubuntu 19.10 it doesn't seem to actually choose the text file if other is first in the vector.
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Indeed, it wasn't working with the other order. I've added some extra checks in dialog.rs, and now all the combinations I've tried seem to work.
xStrom
added
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| // allowed filters, but it's not ok (or at least, doesn't work in gtk) | ||
| // to provide a default filter that isn't in the (present) list | ||
| // of allowed filters. | ||
| log::warn!("default file type not found in allowed types"); |
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This warning should be removed, because there is an explictly documented behavior for this case.
If it's None or not present in allowed_types then the first entry in allowed_types will be used as default.
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But it seems unreasonable for the user to provide a default that is not even available.
If this happens, it most definitely seems to be an accident and should log a warning (on all platforms), at least I think so.
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I guess that's reasonable. We can keep the warning then.
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Note that (and I can change this if it isn't desired druid behavior), if allowed_types is empty then the default type is allowed to be present: it applies a filter that cannot be changed.
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Just to be clear, my previous comment is about gtk's behavior.
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So if I interpret that code correctly, on Windows Some(default_type) is ignored if allowed_types is None. On mac the default type seems to be ignored all together.
I'm not sure what the 'correct' behavior would be (at least not the mac one).
Maybe we should allow having default be Some while allowed is None?
Fixes GTK part of #390.