gtk/subclass/
entry.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::object::Cast;
4use glib::subclass::prelude::*;
5use glib::translate::*;
6
7use super::widget::WidgetImpl;
8use crate::Widget;
9use crate::{Entry, ffi};
10
11pub trait EntryImpl: EntryImplExt + WidgetImpl {
12    /// Class handler for the [`populate-popup`][struct@crate::Entry#populate-popup] signal. If
13    ///  non-[`None`], this will be called to add additional entries to the context
14    ///  menu when it is displayed.
15    fn populate_popup(&self, popup: &Widget) {
16        self.parent_populate_popup(popup)
17    }
18
19    /// Class handler for the [`activate`][struct@crate::Entry#activate] signal. The default
20    ///  implementation calls [`GtkWindowExt::activate_default()`][crate::prelude::GtkWindowExt::activate_default()] on the entry’s top-level
21    ///  window.
22    fn activate(&self) {
23        self.parent_activate()
24    }
25}
26
27mod sealed {
28    pub trait Sealed {}
29    impl<T: super::EntryImpl> Sealed for T {}
30}
31
32pub trait EntryImplExt: ObjectSubclass + sealed::Sealed {
33    fn parent_populate_popup(&self, popup: &Widget) {
34        unsafe {
35            let data = Self::type_data();
36            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkEntryClass;
37            if let Some(f) = (*parent_class).populate_popup {
38                f(
39                    self.obj().unsafe_cast_ref::<Entry>().to_glib_none().0,
40                    popup.to_glib_none().0,
41                )
42            }
43        }
44    }
45    fn parent_activate(&self) {
46        unsafe {
47            let data = Self::type_data();
48            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkEntryClass;
49            if let Some(f) = (*parent_class).activate {
50                f(self.obj().unsafe_cast_ref::<Entry>().to_glib_none().0)
51            }
52        }
53    }
54}
55
56impl<T: EntryImpl> EntryImplExt for T {}
57
58unsafe impl<T: EntryImpl> IsSubclassable<T> for Entry {
59    fn class_init(class: &mut glib::Class<Self>) {
60        Self::parent_class_init::<T>(class);
61
62        if !crate::rt::is_initialized() {
63            panic!("GTK has to be initialized first");
64        }
65
66        let klass = class.as_mut();
67        klass.populate_popup = Some(entry_populate_popup::<T>);
68        klass.activate = Some(entry_activate::<T>);
69    }
70}
71
72unsafe extern "C" fn entry_populate_popup<T: EntryImpl>(
73    ptr: *mut ffi::GtkEntry,
74    popupptr: *mut ffi::GtkWidget,
75) {
76    unsafe {
77        let instance = &*(ptr as *mut T::Instance);
78        let imp = instance.imp();
79        let popup: Borrowed<Widget> = from_glib_borrow(popupptr);
80
81        imp.populate_popup(&popup)
82    }
83}
84
85unsafe extern "C" fn entry_activate<T: EntryImpl>(ptr: *mut ffi::GtkEntry) {
86    unsafe {
87        let instance = &*(ptr as *mut T::Instance);
88        let imp = instance.imp();
89
90        imp.activate()
91    }
92}
gtk/subclass/entry.rs

gtk/subclass/
entry.rs
