gtk4/subclass/
filter.rs
1use glib::{translate::*, Object};
7
8use crate::{ffi, prelude::*, subclass::prelude::*, Filter, FilterMatch};
9
10pub trait FilterImpl: FilterImplExt + ObjectImpl {
11 #[doc(alias = "get_strictness")]
25 fn strictness(&self) -> FilterMatch {
26 self.parent_strictness()
27 }
28 fn match_(&self, item: &Object) -> bool {
36 self.parent_match_(item)
37 }
38}
39
40mod sealed {
41 pub trait Sealed {}
42 impl<T: super::FilterImplExt> Sealed for T {}
43}
44
45pub trait FilterImplExt: sealed::Sealed + ObjectSubclass {
46 fn parent_strictness(&self) -> FilterMatch {
47 unsafe {
48 let data = Self::type_data();
49 let parent_class = data.as_ref().parent_class() as *mut ffi::GtkFilterClass;
50 let f = (*parent_class)
51 .get_strictness
52 .expect("No parent class impl for \"get_strictness\"");
53 from_glib(f(self.obj().unsafe_cast_ref::<Filter>().to_glib_none().0))
54 }
55 }
56
57 fn parent_match_(&self, item: &Object) -> bool {
58 unsafe {
59 let data = Self::type_data();
60 let parent_class = data.as_ref().parent_class() as *mut ffi::GtkFilterClass;
61 let f = (*parent_class)
62 .match_
63 .expect("No parent class impl for \"match\"");
64 from_glib(f(
65 self.obj().unsafe_cast_ref::<Filter>().to_glib_none().0,
66 item.to_glib_none().0,
67 ))
68 }
69 }
70}
71
72impl<T: FilterImpl> FilterImplExt for T {}
73
74unsafe impl<T: FilterImpl> IsSubclassable<T> for Filter {
75 fn class_init(class: &mut glib::Class<Self>) {
76 Self::parent_class_init::<T>(class);
77
78 assert_initialized_main_thread!();
79
80 let klass = class.as_mut();
81 klass.match_ = Some(filter_match::<T>);
82 klass.get_strictness = Some(filter_get_strictness::<T>);
83 }
84}
85
86unsafe extern "C" fn filter_get_strictness<T: FilterImpl>(
87 ptr: *mut ffi::GtkFilter,
88) -> ffi::GtkFilterMatch {
89 let instance = &*(ptr as *mut T::Instance);
90 let imp = instance.imp();
91
92 imp.strictness().into_glib()
93}
94
95unsafe extern "C" fn filter_match<T: FilterImpl>(
96 ptr: *mut ffi::GtkFilter,
97 itemptr: *mut glib::gobject_ffi::GObject,
98) -> glib::ffi::gboolean {
99 let instance = &*(ptr as *mut T::Instance);
100 let imp = instance.imp();
101
102 imp.match_(&from_glib_borrow(itemptr)).into_glib()
103}