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window: Only accept drops of correct type

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This got lost with having a custom "accept" signal handler since
the signal uses g_signal_accumulator_first_wins. Fixing this also
works around GTK not properly checking the drops and ending up
in criticals.

Fixes #234
This commit is contained in:
Sophie Herold 2023-09-05 23:07:18 +02:00
parent 4994ec9b59
commit 896508deee
1 changed files with 6 additions and 2 deletions
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8
src/window.rs
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@ -379,10 +379,14 @@ mod imp {
self.drop_target.set_types(&[gdk::FileList::static_type()]);
// Only accept drops from external sources or different windows
self.drop_target.connect_accept(
clone!(@weak obj => @default-return false, move |_drop_target, drop| {
drop.drag().is_none() || drop.drag() != obj.image_view().drag_source().drag()
// Only accept drops from external sources or different windows
let different_source = drop.drag().is_none() || drop.drag() != obj.image_view().drag_source().drag();
// We have to do this manually since we are overwriting the default handler
let correct_format = drop.formats().contains_type(gdk::FileList::static_type());
different_source && correct_format
}),
);