From 9bdbab753a414c9153df4fc808951b4b93bfe45a Mon Sep 17 00:00:00 2001
From: Jason Tsai <jason@pews.dev>
Date: Wed, 15 May 2024 17:58:45 +0800
Subject: [PATCH 1/2] feat(macos): add setters to set title bar style on macOS

---
 .changes/feat-set-title-bar-style.md |  5 +++++
 src/platform/macos.rs                | 20 ++++++++++++++++++++
 src/platform_impl/macos/window.rs    | 18 ++++++++++++++++++
 3 files changed, 43 insertions(+)
 create mode 100644 .changes/feat-set-title-bar-style.md

diff --git a/.changes/feat-set-title-bar-style.md b/.changes/feat-set-title-bar-style.md
new file mode 100644
index 000000000..b9f5e146d
--- /dev/null
+++ b/.changes/feat-set-title-bar-style.md
@@ -0,0 +1,5 @@
+---
+'tao': patch
+---
+
+On macOS, add `set_fullsize_content_view` and `set_titlebar_transparent` to `Window` to set the title bar style.
diff --git a/src/platform/macos.rs b/src/platform/macos.rs
index 568287149..f288895b6 100644
--- a/src/platform/macos.rs
+++ b/src/platform/macos.rs
@@ -74,6 +74,16 @@ pub trait WindowExtMacOS {
 
   /// Returns the window's tabbing identifier.
   fn tabbing_identifier(&self) -> String;
+
+  /// The content view consumes the full size of the window.
+  ///
+  /// <https://developer.apple.com/documentation/appkit/nsfullsizecontentviewwindowmask>
+  fn set_fullsize_content_view(&self, fullsize: bool);
+
+  /// A Boolean value that indicates whether the title bar draws its background.
+  ///
+  /// <https://developer.apple.com/documentation/appkit/nswindow/1419167-titlebarappearstransparent>
+  fn set_titlebar_transparent(&self, transparent: bool);
 }
 
 impl WindowExtMacOS for Window {
@@ -141,6 +151,16 @@ impl WindowExtMacOS for Window {
   fn tabbing_identifier(&self) -> String {
     self.window.tabbing_identifier()
   }
+
+  #[inline]
+  fn set_fullsize_content_view(&self, fullsize: bool) {
+    self.window.set_fullsize_content_view(fullsize);
+  }
+
+  #[inline]
+  fn set_titlebar_transparent(&self, transparent: bool) {
+    self.window.set_titlebar_transparent(transparent);
+  }
 }
 
 /// Corresponds to `NSApplicationActivationPolicy`.
diff --git a/src/platform_impl/macos/window.rs b/src/platform_impl/macos/window.rs
index 7a5aba1d5..e15fa08e1 100644
--- a/src/platform_impl/macos/window.rs
+++ b/src/platform_impl/macos/window.rs
@@ -1613,6 +1613,24 @@ impl WindowExtMacOS for UnownedWindow {
       ns_string_to_rust(tabbing_identifier)
     }
   }
+
+  #[inline]
+  fn set_fullsize_content_view(&self, fullsize: bool) {
+    let mut mask = unsafe { self.ns_window.styleMask() };
+    if fullsize {
+      mask |= NSWindowStyleMask::NSFullSizeContentViewWindowMask;
+    } else {
+      mask &= !NSWindowStyleMask::NSFullSizeContentViewWindowMask;
+    }
+    self.set_style_mask_sync(mask);
+  }
+
+  #[inline]
+  fn set_titlebar_transparent(&self, transparent: bool) {
+    unsafe {
+      self.ns_window.setTitlebarAppearsTransparent_(transparent);
+    }
+  }
 }
 
 impl Drop for UnownedWindow {

From fed1027ec8d910b5f8c59868cf62f4f32f363abd Mon Sep 17 00:00:00 2001
From: Jason Tsai <jason@pews.dev>
Date: Wed, 15 May 2024 18:15:25 +0800
Subject: [PATCH 2/2] fix: bool to BOOL

---
 src/platform_impl/macos/window.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/platform_impl/macos/window.rs b/src/platform_impl/macos/window.rs
index e15fa08e1..c59f71808 100644
--- a/src/platform_impl/macos/window.rs
+++ b/src/platform_impl/macos/window.rs
@@ -1628,7 +1628,9 @@ impl WindowExtMacOS for UnownedWindow {
   #[inline]
   fn set_titlebar_transparent(&self, transparent: bool) {
     unsafe {
-      self.ns_window.setTitlebarAppearsTransparent_(transparent);
+      self
+        .ns_window
+        .setTitlebarAppearsTransparent_(transparent as BOOL);
     }
   }
 }