From 951ba2a595c3496dee2279be5bcfaae691ca3bdb Mon Sep 17 00:00:00 2001
From: Micah Johnston <micah@glowcoil.com>
Date: Mon, 25 May 2020 16:14:42 -0500
Subject: [PATCH] initial macos code

---
 Cargo.toml        |  7 +++++--
 examples/macos.rs | 10 ++++++++++
 src/lib.rs        |  3 +++
 src/macos.rs      | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 64 insertions(+), 2 deletions(-)
 create mode 100644 examples/macos.rs
 create mode 100644 src/macos.rs

diff --git a/Cargo.toml b/Cargo.toml
index d27fcb2..02ca731 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,8 @@ version = "0.1.0"
 authors = [
     "William Light <git@wrl.lhiaudio.com>",
     "Charles Saracco <crsaracco@gmail.com>",
-    "Mirko Covizzi <mrkcvzz@gmail.com>"
+    "Mirko Covizzi <mrkcvzz@gmail.com>",
+    "Micah Johnston <micah@glowcoil.com>",
 ]
 edition = "2018"
 
@@ -16,4 +17,6 @@ xcb = { version = "0.9", features = ["thread", "xlib_xcb", "dri2"] }
 [target.'cfg(target_os="windows")'.dependencies]
 winapi = { version = "0.3.8", features = ["libloaderapi", "winuser", "windef", "minwindef", "guiddef", "combaseapi"] }
 
-# [target.'cfg(target_os="macos")'.dependencies]
+[target.'cfg(target_os="macos")'.dependencies]
+cocoa = "0.20.1"
+objc = "0.2.7"
diff --git a/examples/macos.rs b/examples/macos.rs
new file mode 100644
index 0000000..924a382
--- /dev/null
+++ b/examples/macos.rs
@@ -0,0 +1,10 @@
+fn main() {
+    let window_open_options = baseview::WindowOpenOptions {
+        title: "baseview",
+        width: 512,
+        height: 512,
+        parent: baseview::Parent::None,
+    };
+
+    baseview::Window::open(window_open_options);
+}
diff --git a/src/lib.rs b/src/lib.rs
index 1f469d7..aacc02a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,6 +6,9 @@ use std::ffi::c_void;
 
 mod x11;
 
+mod macos;
+pub use macos::Window;
+
 pub enum Parent {
     None,
     AsIfParented,
diff --git a/src/macos.rs b/src/macos.rs
new file mode 100644
index 0000000..64ca90d
--- /dev/null
+++ b/src/macos.rs
@@ -0,0 +1,46 @@
+use cocoa::appkit::{
+    NSApp, NSApplication, NSApplicationActivateIgnoringOtherApps,
+    NSApplicationActivationPolicyRegular, NSBackingStoreBuffered, NSRunningApplication, NSView,
+    NSWindow, NSWindowStyleMask,
+};
+use cocoa::base::{nil, NO};
+use cocoa::foundation::{NSAutoreleasePool, NSPoint, NSRect, NSSize, NSString};
+
+use crate::WindowOpenOptions;
+
+pub struct Window;
+
+impl Window {
+    pub fn open(options: WindowOpenOptions) {
+        unsafe {
+            let _pool = NSAutoreleasePool::new(nil);
+
+            let app = NSApp();
+            app.setActivationPolicy_(NSApplicationActivationPolicyRegular);
+
+            let rect = NSRect::new(
+                NSPoint::new(0.0, 0.0),
+                NSSize::new(options.width as f64, options.height as f64),
+            );
+
+            let window = NSWindow::alloc(nil)
+                .initWithContentRect_styleMask_backing_defer_(
+                    rect,
+                    NSWindowStyleMask::NSTitledWindowMask,
+                    NSBackingStoreBuffered,
+                    NO,
+                )
+                .autorelease();
+            window.center();
+            window.setTitle_(NSString::alloc(nil).init_str(options.title));
+            window.makeKeyAndOrderFront_(nil);
+
+            let view = NSView::alloc(nil).init();
+            window.setContentView_(view);
+
+            let current_app = NSRunningApplication::currentApplication(nil);
+            current_app.activateWithOptions_(NSApplicationActivateIgnoringOtherApps);
+            app.run();
+        }
+    }
+}