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Fix device description leak (#2758)

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* Fix device description leak

* Update CHANGELOG.md

---------

Co-authored-by: Xiaopeng Li <lixiaopeng.jetspark@bytedance.com>
This commit is contained in:
Xiaopeng Li
2023-05-08 22:58:34 +08:00
committed by Kirill Chibisov
parent 340202f842
commit 5278441547
2 changed files with 18 additions and 13 deletions
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1
CHANGELOG.md
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@@ -17,6 +17,7 @@ And please only add new entries to the top of this list, right below the `# Unre
- On macOS, fix empty marked text blocking regular input.
- On macOS, fixed potential panic when getting refresh rate.
- On macOS, fix crash when calling `Window::set_ime_position` from another thread.
- On macOS, fixed memory leak when getting monitor handle.
# 0.28.3

30
src/platform_impl/macos/appkit/screen.rs
View File

@@ -39,21 +39,25 @@ extern_methods!(
}
pub fn display_id(&self) -> u32 {
let device_description = self.deviceDescription();
let key = ns_string!("NSScreenNumber");
// Retrieve the CGDirectDisplayID associated with this screen
//
// SAFETY: The value from @"NSScreenNumber" in deviceDescription is guaranteed
// to be an NSNumber. See documentation for `deviceDescription` for details:
// <https://developer.apple.com/documentation/appkit/nsscreen/1388360-devicedescription?language=objc>
let obj = device_description
.get(ns_string!("NSScreenNumber"))
.expect("failed getting screen display id from device description");
let obj: *const Object = obj;
let obj: *const NSNumber = obj.cast();
let obj: &NSNumber = unsafe { &*obj };
objc2::rc::autoreleasepool(|_| {
let device_description = self.deviceDescription();
obj.as_u32()
// Retrieve the CGDirectDisplayID associated with this screen
//
// SAFETY: The value from @"NSScreenNumber" in deviceDescription is guaranteed
// to be an NSNumber. See documentation for `deviceDescription` for details:
// <https://developer.apple.com/documentation/appkit/nsscreen/1388360-devicedescription?language=objc>
let obj = device_description
.get(key)
.expect("failed getting screen display id from device description");
let obj: *const Object = obj;
let obj: *const NSNumber = obj.cast();
let obj: &NSNumber = unsafe { &*obj };
obj.as_u32()
})
}
#[sel(backingScaleFactor)]