Vendor dependencies for 0.3.0 release

vendor/metal/src/drawable.rs

@@ -0,0 +1,39 @@
+// Copyright 2016 GFX developers
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
+
+use block::Block;
+
+use super::NSUInteger;
+
+type DrawablePresentedHandler<'a> = Block<(&'a DrawableRef,), ()>;
+type CFTimeInterval = f64;
+
+/// See <https://developer.apple.com/documentation/metal/mtldrawable>
+pub enum MTLDrawable {}
+
+foreign_obj_type! {
+    type CType = MTLDrawable;
+    pub struct Drawable;
+}
+
+impl DrawableRef {
+    pub fn present(&self) {
+        unsafe { msg_send![self, present] }
+    }
+
+    pub fn drawable_id(&self) -> NSUInteger {
+        unsafe { msg_send![self, drawableID] }
+    }
+
+    pub fn add_presented_handler(&self, block: &DrawablePresentedHandler) {
+        unsafe { msg_send![self, addPresentedHandler: block] }
+    }
+
+    pub fn presented_time(&self) -> CFTimeInterval {
+        unsafe { msg_send![self, presentedTime] }
+    }
+}