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use glib::subclass::prelude::*;
use glib::translate::*;
use glib::Cast;
use super::bin::BinImpl;
use crate::Button;
pub trait ButtonImpl: ButtonImplExt + BinImpl {
fn activate(&self) {
self.parent_activate()
}
fn clicked(&self) {
self.parent_clicked()
}
}
pub trait ButtonImplExt: ObjectSubclass {
fn parent_activate(&self);
fn parent_clicked(&self);
}
impl<T: ButtonImpl> ButtonImplExt for T {
fn parent_activate(&self) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkButtonClass;
if let Some(f) = (*parent_class).activate {
f(self.instance().unsafe_cast_ref::<Button>().to_glib_none().0)
}
}
}
fn parent_clicked(&self) {
unsafe {
let data = T::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GtkButtonClass;
if let Some(f) = (*parent_class).clicked {
f(self.instance().unsafe_cast_ref::<Button>().to_glib_none().0)
}
}
}
}
unsafe impl<T: ButtonImpl> IsSubclassable<T> for Button {
fn class_init(class: &mut glib::Class<Self>) {
Self::parent_class_init::<T>(class);
if !crate::rt::is_initialized() {
panic!("GTK has to be initialized first");
}
let klass = class.as_mut();
klass.activate = Some(button_activate::<T>);
klass.clicked = Some(button_clicked::<T>);
}
}
unsafe extern "C" fn button_activate<T: ButtonImpl>(ptr: *mut ffi::GtkButton) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
imp.activate()
}
unsafe extern "C" fn button_clicked<T: ButtonImpl>(ptr: *mut ffi::GtkButton) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.imp();
imp.clicked()
}