gdk4/content_provider.rs
1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::translate::*;
4
5use crate::{ffi, prelude::*, ContentProvider};
6
7mod sealed {
8 pub trait Sealed {}
9 impl<T: super::IsA<super::ContentProvider>> Sealed for T {}
10}
11
12// rustdoc-stripper-ignore-next
13/// Trait containing manually implemented methods of
14/// [`ContentProvider`](crate::ContentProvider).
15pub trait ContentProviderExtManual: sealed::Sealed + IsA<ContentProvider> {
16 /// Gets the contents of @self stored in @value.
17 ///
18 /// The @value will have been initialized to the `GType` the value should be
19 /// provided in. This given `GType` does not need to be listed in the formats
20 /// returned by [`ContentProviderExt::formats()`][crate::prelude::ContentProviderExt::formats()]. However, if the
21 /// given `GType` is not supported, this operation can fail and
22 /// `G_IO_ERROR_NOT_SUPPORTED` will be reported.
23 ///
24 /// # Returns
25 ///
26 /// [`true`] if the value was set successfully. Otherwise
27 /// @error will be set to describe the failure.
28 ///
29 /// ## `value`
30 /// the `GValue` to fill
31 #[doc(alias = "gdk_content_provider_get_value")]
32 fn value(&self, type_: glib::Type) -> Result<glib::Value, glib::Error> {
33 unsafe {
34 let mut error = std::ptr::null_mut();
35 let mut value = glib::Value::from_type(type_);
36 let _ = ffi::gdk_content_provider_get_value(
37 self.as_ref().to_glib_none().0,
38 value.to_glib_none_mut().0,
39 &mut error,
40 );
41 if error.is_null() {
42 Ok(value)
43 } else {
44 Err(from_glib_full(error))
45 }
46 }
47 }
48}
49
50impl<O: IsA<ContentProvider>> ContentProviderExtManual for O {}