Use wrapper type for CFUUID retired from (rust-windowing/winit#4032)

docs/docs/features/shell-integration.md

@@ -10,3 +10,17 @@ Rio supports integrating with the shell through the following means:
 - OSC 1337 Escape sequences to set user vars for tracking additional shell state.
 
 OSC is escape sequence jargon for Operating System Command.
+
+## Title integration
+
+Programs notify Rio of the current working directory and document by sending it commands. You may need to configure your shell or other programs to enable this behavior.
+
+The working directory and location of the current document may be set using the Operating System Command (OSC) escape sequence:
+
+```
+ESC ] Ps ; Pt BEL
+```
+
+The parameter Ps is either 6 (document) or 7 (working directory) and Pt is a “file:” URL. The URL should include a hostname to disambiguate local and remote paths, and characters must be percent-encoded as appropriate.
+
+When both the working directory and document are set only the document is displayed.

rio-window/src/platform_impl/macos/monitor.rs

@@ -6,6 +6,7 @@ use std::fmt;
 use core_foundation::array::{CFArrayGetCount, CFArrayGetValueAtIndex};
 use core_foundation::base::{CFRelease, TCFType};
 use core_foundation::string::CFString;
+use core_foundation::uuid::{CFUUIDGetUUIDBytes, CFUUID};
 use core_graphics::display::{
     CGDirectDisplayID, CGDisplay, CGDisplayBounds, CGDisplayCopyDisplayMode,
 };
@@ -102,15 +103,42 @@ impl VideoModeHandle {
 #[derive(Clone)]
 pub struct MonitorHandle(CGDirectDisplayID);
 
+type MonitorUuid = [u8; 16];
+
+impl MonitorHandle {
+    /// Internal comparisons of [`MonitorHandle`]s are done first requesting a UUID for the handle.
+    fn uuid(&self) -> MonitorUuid {
+        let cf_uuid = unsafe {
+            CFUUID::wrap_under_create_rule(ffi::CGDisplayCreateUUIDFromDisplayID(self.0))
+        };
+        let uuid = unsafe { CFUUIDGetUUIDBytes(cf_uuid.as_concrete_TypeRef()) };
+        MonitorUuid::from([
+            uuid.byte0,
+            uuid.byte1,
+            uuid.byte2,
+            uuid.byte3,
+            uuid.byte4,
+            uuid.byte5,
+            uuid.byte6,
+            uuid.byte7,
+            uuid.byte8,
+            uuid.byte9,
+            uuid.byte10,
+            uuid.byte11,
+            uuid.byte12,
+            uuid.byte13,
+            uuid.byte14,
+            uuid.byte15,
+        ])
+    }
+}
+
 // `CGDirectDisplayID` changes on video mode change, so we cannot rely on that
 // for comparisons, but we can use `CGDisplayCreateUUIDFromDisplayID` to get an
 // unique identifier that persists even across system reboots
 impl PartialEq for MonitorHandle {
     fn eq(&self, other: &Self) -> bool {
-        unsafe {
-            ffi::CGDisplayCreateUUIDFromDisplayID(self.0)
-                == ffi::CGDisplayCreateUUIDFromDisplayID(other.0)
-        }
+        self.uuid() == other.uuid()
     }
 }
 
@@ -124,18 +152,13 @@ impl PartialOrd for MonitorHandle {
 
 impl Ord for MonitorHandle {
     fn cmp(&self, other: &Self) -> std::cmp::Ordering {
-        unsafe {
-            ffi::CGDisplayCreateUUIDFromDisplayID(self.0)
-                .cmp(&ffi::CGDisplayCreateUUIDFromDisplayID(other.0))
-        }
+        self.uuid().cmp(&other.uuid())
     }
 }
 
 impl std::hash::Hash for MonitorHandle {
     fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
-        unsafe {
-            ffi::CGDisplayCreateUUIDFromDisplayID(self.0).hash(state);
-        }
+        self.uuid().hash(state);
     }
 }
 
@@ -308,15 +331,11 @@ impl MonitorHandle {
     }
 
     pub(crate) fn ns_screen(&self, mtm: MainThreadMarker) -> Option<Retained<NSScreen>> {
-        let uuid = unsafe { ffi::CGDisplayCreateUUIDFromDisplayID(self.0) };
+        let uuid = self.uuid();
         NSScreen::screens(mtm).into_iter().find(|screen| {
             let other_native_id = get_display_id(screen);
-            let other_uuid = unsafe {
-                ffi::CGDisplayCreateUUIDFromDisplayID(
-                    other_native_id as CGDirectDisplayID,
-                )
-            };
-            uuid == other_uuid
+            let other = MonitorHandle::new(other_native_id);
+            uuid == other.uuid()
         })
     }
 }