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Use Rc instead of Arc for DropTarget

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This commit is contained in:
Jussi Viiri 2023-06-10 22:01:23 +03:00
parent 4f0a71736c
commit 2019efde65
1 changed files with 11 additions and 11 deletions
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22
src/win/window.rs
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@ -472,7 +472,7 @@ struct WindowState {
handler: RefCell<Option<Box<dyn WindowHandler>>>,
scale_policy: WindowScalePolicy,
dw_style: u32,
_drop_target: Option<Arc<DropTarget>>,
_drop_target: Option<Rc<DropTarget>>,
/// Tasks that should be executed at the end of `wnd_proc`. This is needed to avoid mutably
/// borrowing the fields from `WindowState` more than once. For instance, when the window
@ -726,10 +726,10 @@ impl Window<'_> {
};
let window_state_ptr = Box::into_raw(window_state);
let drop_target = Arc::new(DropTarget::new(window_state_ptr));
let drop_target = Rc::new(DropTarget::new(window_state_ptr));
OleInitialize(null_mut());
RegisterDragDrop(hwnd, Arc::as_ptr(&drop_target) as LPDROPTARGET);
RegisterDragDrop(hwnd, Rc::as_ptr(&drop_target) as LPDROPTARGET);
(*window_state_ptr)._drop_target = Some(drop_target);
@ -924,21 +924,21 @@ impl DropTarget {
}
unsafe extern "system" fn add_ref(this: *mut IUnknown) -> ULONG {
let arc = Arc::from_raw(this);
let result = Arc::strong_count(&arc) + 1;
let _ = Arc::into_raw(arc);
let arc = Rc::from_raw(this);
let result = Rc::strong_count(&arc) + 1;
let _ = Rc::into_raw(arc);
Arc::increment_strong_count(this);
Rc::increment_strong_count(this);
result as ULONG
}
unsafe extern "system" fn release(this: *mut IUnknown) -> ULONG {
let arc = Arc::from_raw(this);
let result = Arc::strong_count(&arc) - 1;
let _ = Arc::into_raw(arc);
let arc = Rc::from_raw(this);
let result = Rc::strong_count(&arc) - 1;
let _ = Rc::into_raw(arc);
Arc::decrement_strong_count(this);
Rc::decrement_strong_count(this);
result as ULONG
}