windows: Refactor clipboard implementation (#14347)

This PR provides a similar implementation to the macOS clipboard
implementation, adds support for metadata and includes tests.

Release Notes:

- N/A

crates/gpui/src/platform/windows/direct_write.rs

@@ -1,4 +1,4 @@
-use std::{borrow::Cow, sync::Arc};
+use std::{borrow::Cow, mem::ManuallyDrop, sync::Arc};
 
 use ::util::ResultExt;
 use anyhow::{anyhow, Result};
@@ -39,7 +39,7 @@ pub(crate) struct DirectWriteTextSystem(RwLock<DirectWriteState>);
 struct DirectWriteComponent {
     locale: String,
     factory: IDWriteFactory5,
-    bitmap_factory: IWICImagingFactory2,
+    bitmap_factory: ManuallyDrop<IWICImagingFactory2>,
     d2d1_factory: ID2D1Factory,
     in_memory_loader: IDWriteInMemoryFontFileLoader,
     builder: IDWriteFontSetBuilder1,
@@ -79,6 +79,7 @@ impl DirectWriteComponent {
             let factory: IDWriteFactory5 = DWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED)?;
             let bitmap_factory: IWICImagingFactory2 =
                 CoCreateInstance(&CLSID_WICImagingFactory2, None, CLSCTX_INPROC_SERVER)?;
+            let bitmap_factory = ManuallyDrop::new(bitmap_factory);
             let d2d1_factory: ID2D1Factory =
                 D2D1CreateFactory(D2D1_FACTORY_TYPE_MULTI_THREADED, None)?;
             // The `IDWriteInMemoryFontFileLoader` here is supported starting from
@@ -238,6 +239,11 @@ impl PlatformTextSystem for DirectWriteTextSystem {
                 ..Default::default()
             })
     }
+
+    fn destroy(&self) {
+        let mut lock = self.0.write();
+        unsafe { ManuallyDrop::drop(&mut lock.components.bitmap_factory) };
+    }
 }
 
 impl DirectWriteState {