1 files changed, 56 insertions, 0 deletions
diff --git a/toolkit/crashreporter/client/app/src/ui/windows/font.rs b/toolkit/crashreporter/client/app/src/ui/windows/font.rs
new file mode 100644
index 0000000000..3ec48316eb
--- /dev/null
+++ b/toolkit/crashreporter/client/app/src/ui/windows/font.rs
@@ -0,0 +1,56 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use windows_sys::Win32::{Foundation::S_OK, Graphics::Gdi, UI::Controls};
+
+/// Windows font handle (`HFONT`).
+pub struct Font(Gdi::HFONT);
+
+impl Font {
+    /// Get the system theme caption font.
+    ///
+    /// Panics if the font cannot be retrieved.
+    pub fn caption() -> Self {
+        unsafe {
+            let mut font = std::mem::zeroed::<Gdi::LOGFONTW>();
+            success!(hresult
+                Controls::GetThemeSysFont(0, Controls::TMT_CAPTIONFONT as i32, &mut font)
+            );
+            Font(success!(pointer Gdi::CreateFontIndirectW(&font)))
+        }
+    }
+
+    /// Get the system theme bold caption font.
+    ///
+    /// Returns `None` if the font cannot be retrieved.
+    pub fn caption_bold() -> Option<Self> {
+        unsafe {
+            let mut font = std::mem::zeroed::<Gdi::LOGFONTW>();
+            if Controls::GetThemeSysFont(0, Controls::TMT_CAPTIONFONT as i32, &mut font) != S_OK {
+                return None;
+            }
+            font.lfWeight = Gdi::FW_BOLD as i32;
+
+            let ptr = Gdi::CreateFontIndirectW(&font);
+            if ptr == 0 {
+                return None;
+            }
+            Some(Font(ptr))
+        }
+    }
+}
+
+impl std::ops::Deref for Font {
+    type Target = Gdi::HFONT;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl Drop for Font {
+    fn drop(&mut self) {
+        unsafe { Gdi::DeleteObject(self.0 as _) };
+    }
+}