Move some implementations around

src/platform/android/ffi.rs

@@ -0,0 +1,108 @@
+#![allow(dead_code)]
+#![allow(non_snake_case)]
+#![allow(non_camel_case_types)]
+#![allow(non_upper_case_globals)]
+
+use libc;
+use std::os::raw;
+
+#[link(name = "android")]
+#[link(name = "EGL")]
+#[link(name = "GLESv2")]
+extern {}
+
+/**
+ * asset_manager.h
+ */
+pub type AAssetManager = raw::c_void;
+
+/**
+ * native_window.h
+ */
+pub type ANativeWindow = raw::c_void;
+
+extern {
+    pub fn ANativeWindow_getHeight(window: *const ANativeWindow) -> libc::int32_t;
+    pub fn ANativeWindow_getWidth(window: *const ANativeWindow) -> libc::int32_t;
+}
+
+/**
+ * native_activity.h
+ */
+pub type JavaVM = ();
+pub type JNIEnv = ();
+pub type jobject = *const libc::c_void;
+
+pub type AInputQueue = ();  // FIXME: wrong
+pub type ARect = ();  // FIXME: wrong
+
+#[repr(C)]
+pub struct ANativeActivity {
+    pub callbacks: *mut ANativeActivityCallbacks,
+    pub vm: *mut JavaVM,
+    pub env: *mut JNIEnv,
+    pub clazz: jobject,
+    pub internalDataPath: *const libc::c_char,
+    pub externalDataPath: *const libc::c_char,
+    pub sdkVersion: libc::int32_t,
+    pub instance: *mut libc::c_void,
+    pub assetManager: *mut AAssetManager,
+    pub obbPath: *const libc::c_char,
+}
+
+#[repr(C)]
+pub struct ANativeActivityCallbacks {
+    pub onStart: extern fn(*mut ANativeActivity),
+    pub onResume: extern fn(*mut ANativeActivity),
+    pub onSaveInstanceState: extern fn(*mut ANativeActivity, *mut libc::size_t),
+    pub onPause: extern fn(*mut ANativeActivity),
+    pub onStop: extern fn(*mut ANativeActivity),
+    pub onDestroy: extern fn(*mut ANativeActivity),
+    pub onWindowFocusChanged: extern fn(*mut ANativeActivity, libc::c_int),
+    pub onNativeWindowCreated: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onNativeWindowResized: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onNativeWindowRedrawNeeded: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onNativeWindowDestroyed: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onInputQueueCreated: extern fn(*mut ANativeActivity, *mut AInputQueue),
+    pub onInputQueueDestroyed: extern fn(*mut ANativeActivity, *mut AInputQueue),
+    pub onContentRectChanged: extern fn(*mut ANativeActivity, *const ARect),
+    pub onConfigurationChanged: extern fn(*mut ANativeActivity),
+    pub onLowMemory: extern fn(*mut ANativeActivity),
+}
+
+/**
+ * looper.h
+ */
+pub type ALooper = ();
+
+#[link(name = "android")]
+extern {
+    pub fn ALooper_forThread() -> *const ALooper;
+    pub fn ALooper_acquire(looper: *const ALooper);
+    pub fn ALooper_release(looper: *const ALooper);
+    pub fn ALooper_prepare(opts: libc::c_int) -> *const ALooper;
+    pub fn ALooper_pollOnce(timeoutMillis: libc::c_int, outFd: *mut libc::c_int,
+        outEvents: *mut libc::c_int, outData: *mut *mut libc::c_void) -> libc::c_int;
+    pub fn ALooper_pollAll(timeoutMillis: libc::c_int, outFd: *mut libc::c_int,
+        outEvents: *mut libc::c_int, outData: *mut *mut libc::c_void) -> libc::c_int;
+    pub fn ALooper_wake(looper: *const ALooper);
+    pub fn ALooper_addFd(looper: *const ALooper, fd: libc::c_int, ident: libc::c_int,
+        events: libc::c_int, callback: ALooper_callbackFunc, data: *mut libc::c_void)
+        -> libc::c_int;
+    pub fn ALooper_removeFd(looper: *const ALooper, fd: libc::c_int) -> libc::c_int;
+}
+
+pub const ALOOPER_PREPARE_ALLOW_NON_CALLBACKS: libc::c_int = 1 << 0;
+
+pub const ALOOPER_POLL_WAKE: libc::c_int = -1;
+pub const ALOOPER_POLL_CALLBACK: libc::c_int = -2;
+pub const ALOOPER_POLL_TIMEOUT: libc::c_int = -3;
+pub const ALOOPER_POLL_ERROR: libc::c_int = -4;
+
+pub const ALOOPER_EVENT_INPUT: libc::c_int = 1 << 0;
+pub const ALOOPER_EVENT_OUTPUT: libc::c_int = 1 << 1;
+pub const ALOOPER_EVENT_ERROR: libc::c_int = 1 << 2;
+pub const ALOOPER_EVENT_HANGUP: libc::c_int = 1 << 3;
+pub const ALOOPER_EVENT_INVALID: libc::c_int = 1 << 4;
+
+pub type ALooper_callbackFunc = extern fn(libc::c_int, libc::c_int, *mut libc::c_void) -> libc::c_int;

src/platform/android/mod.rs

@@ -1,3 +1,256 @@
 #![cfg(target_os = "android")]
 
-pub use api::android::*;
+extern crate android_glue;
+
+use libc;
+use std::ffi::{CString};
+use std::sync::mpsc::{Receiver, channel};
+use std::os::raw::c_void;
+use {CreationError, Event, MouseCursor};
+use CreationError::OsError;
+use events::ElementState::{Pressed, Released};
+use events::{Touch, TouchPhase};
+
+use std::collections::VecDeque;
+
+use CursorState;
+use WindowAttributes;
+use native_monitor::NativeMonitorId;
+
+pub struct Window {
+    native_window: *const c_void,
+    event_rx: Receiver<android_glue::Event>,
+}
+
+#[derive(Clone)]
+pub struct MonitorId;
+
+mod ffi;
+
+#[inline]
+pub fn get_available_monitors() -> VecDeque<MonitorId> {
+    let mut rb = VecDeque::new();
+    rb.push_back(MonitorId);
+    rb
+}
+
+#[inline]
+pub fn get_primary_monitor() -> MonitorId {
+    MonitorId
+}
+
+impl MonitorId {
+    #[inline]
+    pub fn get_name(&self) -> Option<String> {
+        Some("Primary".to_string())
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> NativeMonitorId {
+        NativeMonitorId::Unavailable
+    }
+
+    #[inline]
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        unimplemented!()
+    }
+}
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificWindowBuilderAttributes;
+#[derive(Clone, Default)]
+pub struct PlatformSpecificHeadlessBuilderAttributes;
+
+pub struct PollEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for PollEventsIterator<'a> {
+    type Item = Event;
+
+    fn next(&mut self) -> Option<Event> {
+        match self.window.event_rx.try_recv() {
+            Ok(android_glue::Event::EventMotion(motion)) => {
+                Some(Event::Touch(Touch {
+                    phase: match motion.action {
+                        android_glue::MotionAction::Down => TouchPhase::Started,
+                        android_glue::MotionAction::Move => TouchPhase::Moved,
+                        android_glue::MotionAction::Up => TouchPhase::Ended,
+                        android_glue::MotionAction::Cancel => TouchPhase::Cancelled,
+                    },
+                    location: (motion.x as f64, motion.y as f64),
+                    id: motion.pointer_id as u64,
+                }))
+            }
+            _ => {
+                None
+            }
+        }
+    }
+}
+
+pub struct WaitEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for WaitEventsIterator<'a> {
+    type Item = Event;
+
+    #[inline]
+    fn next(&mut self) -> Option<Event> {
+        loop {
+            // calling poll_events()
+            if let Some(ev) = self.window.poll_events().next() {
+                return Some(ev);
+            }
+
+            // TODO: Implement a proper way of sleeping on the event queue
+            // timer::sleep(Duration::milliseconds(16));
+        }
+    }
+}
+
+impl Window {
+    pub fn new(win_attribs: &WindowAttributes, _: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window, CreationError>
+    {
+        use std::{mem, ptr};
+
+        // not implemented
+        assert!(win_attribs.min_dimensions.is_none());
+        assert!(win_attribs.max_dimensions.is_none());
+
+        let native_window = unsafe { android_glue::get_native_window() };
+        if native_window.is_null() {
+            return Err(OsError(format!("Android's native window is null")));
+        }
+
+        let (tx, rx) = channel();
+        android_glue::add_sender(tx);
+        android_glue::set_multitouch(win_attribs.multitouch);
+
+        Ok(Window {
+            native_window: native_window as *const _,
+            event_rx: rx,
+        })
+    }
+
+    #[inline]
+    pub fn get_native_window(&self) -> *const c_void {
+        self.native_window
+    }
+
+    #[inline]
+    pub fn is_closed(&self) -> bool {
+        false
+    }
+
+    #[inline]
+    pub fn set_title(&self, _: &str) {
+    }
+
+    #[inline]
+    pub fn show(&self) {
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+    }
+
+    #[inline]
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        None
+    }
+
+    #[inline]
+    pub fn set_position(&self, _x: i32, _y: i32) {
+    }
+
+    #[inline]
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        let native_window = unsafe { android_glue::get_native_window() };
+
+        if native_window.is_null() {
+            None
+        } else {
+            Some((
+                unsafe { ffi::ANativeWindow_getWidth(native_window as *const _) } as u32,
+                unsafe { ffi::ANativeWindow_getHeight(native_window as *const _) } as u32
+            ))
+        }
+    }
+
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        self.get_inner_size()
+    }
+
+    #[inline]
+    pub fn set_inner_size(&self, _x: u32, _y: u32) {
+    }
+
+    #[inline]
+    pub fn create_window_proxy(&self) -> WindowProxy {
+        WindowProxy
+    }
+
+    #[inline]
+    pub fn poll_events(&self) -> PollEventsIterator {
+        PollEventsIterator {
+            window: self
+        }
+    }
+
+    #[inline]
+    pub fn wait_events(&self) -> WaitEventsIterator {
+        WaitEventsIterator {
+            window: self
+        }
+    }
+
+    #[inline]
+    pub fn platform_display(&self) -> *mut libc::c_void {
+        unimplemented!();
+    }
+
+    #[inline]
+    pub fn platform_window(&self) -> *mut libc::c_void {
+        unimplemented!()
+    }
+
+    #[inline]
+    pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
+    }
+
+    #[inline]
+    pub fn set_cursor(&self, _: MouseCursor) {
+    }
+
+    #[inline]
+    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+        Ok(())
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+        1.0
+    }
+
+    #[inline]
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        unimplemented!();
+    }
+}
+
+unsafe impl Send for Window {}
+unsafe impl Sync for Window {}
+
+#[derive(Clone)]
+pub struct WindowProxy;
+
+impl WindowProxy {
+    #[inline]
+    pub fn wakeup_event_loop(&self) {
+        unimplemented!()
+    }
+}

src/platform/macos/event.rs

@@ -0,0 +1,136 @@
+use events;
+
+pub fn vkeycode_to_element(code: u16) -> Option<events::VirtualKeyCode> {
+    Some(match code {
+        0x00 => events::VirtualKeyCode::A,
+        0x01 => events::VirtualKeyCode::S,
+        0x02 => events::VirtualKeyCode::D,
+        0x03 => events::VirtualKeyCode::F,
+        0x04 => events::VirtualKeyCode::H,
+        0x05 => events::VirtualKeyCode::G,
+        0x06 => events::VirtualKeyCode::Z,
+        0x07 => events::VirtualKeyCode::X,
+        0x08 => events::VirtualKeyCode::C,
+        0x09 => events::VirtualKeyCode::V,
+        //0x0a => World 1,
+        0x0b => events::VirtualKeyCode::B,
+        0x0c => events::VirtualKeyCode::Q,
+        0x0d => events::VirtualKeyCode::W,
+        0x0e => events::VirtualKeyCode::E,
+        0x0f => events::VirtualKeyCode::R,
+        0x10 => events::VirtualKeyCode::Y,
+        0x11 => events::VirtualKeyCode::T,
+        0x12 => events::VirtualKeyCode::Key1,
+        0x13 => events::VirtualKeyCode::Key2,
+        0x14 => events::VirtualKeyCode::Key3,
+        0x15 => events::VirtualKeyCode::Key4,
+        0x16 => events::VirtualKeyCode::Key6,
+        0x17 => events::VirtualKeyCode::Key5,
+        0x18 => events::VirtualKeyCode::Equals,
+        0x19 => events::VirtualKeyCode::Key9,
+        0x1a => events::VirtualKeyCode::Key7,
+        0x1b => events::VirtualKeyCode::Minus,
+        0x1c => events::VirtualKeyCode::Key8,
+        0x1d => events::VirtualKeyCode::Key0,
+        0x1e => events::VirtualKeyCode::RBracket,
+        0x1f => events::VirtualKeyCode::O,
+        0x20 => events::VirtualKeyCode::U,
+        0x21 => events::VirtualKeyCode::LBracket,
+        0x22 => events::VirtualKeyCode::I,
+        0x23 => events::VirtualKeyCode::P,
+        0x24 => events::VirtualKeyCode::Return,
+        0x25 => events::VirtualKeyCode::L,
+        0x26 => events::VirtualKeyCode::J,
+        0x27 => events::VirtualKeyCode::Apostrophe,
+        0x28 => events::VirtualKeyCode::K,
+        0x29 => events::VirtualKeyCode::Semicolon,
+        0x2a => events::VirtualKeyCode::Backslash,
+        0x2b => events::VirtualKeyCode::Comma,
+        0x2c => events::VirtualKeyCode::Slash,
+        0x2d => events::VirtualKeyCode::N,
+        0x2e => events::VirtualKeyCode::M,
+        0x2f => events::VirtualKeyCode::Period,
+        0x30 => events::VirtualKeyCode::Tab,
+        0x31 => events::VirtualKeyCode::Space,
+        0x32 => events::VirtualKeyCode::Grave,
+        0x33 => events::VirtualKeyCode::Back,
+        //0x34 => unkown,
+        0x35 => events::VirtualKeyCode::Escape,
+        0x36 => events::VirtualKeyCode::RWin,
+        0x37 => events::VirtualKeyCode::LWin,
+        0x38 => events::VirtualKeyCode::LShift,
+        //0x39 => Caps lock,
+        //0x3a => Left alt,
+        0x3b => events::VirtualKeyCode::LControl,
+        0x3c => events::VirtualKeyCode::RShift,
+        //0x3d => Right alt,
+        0x3e => events::VirtualKeyCode::RControl,
+        //0x3f => Fn key,
+        //0x40 => F17 Key,
+        0x41 => events::VirtualKeyCode::Decimal,
+        //0x42 -> unkown,
+        0x43 => events::VirtualKeyCode::Multiply,
+        //0x44 => unkown,
+        0x45 => events::VirtualKeyCode::Add,
+        //0x46 => unkown,
+        0x47 => events::VirtualKeyCode::Numlock,
+        //0x48 => KeypadClear,
+        0x49 => events::VirtualKeyCode::VolumeUp,
+        0x4a => events::VirtualKeyCode::VolumeDown,
+        0x4b => events::VirtualKeyCode::Divide,
+        0x4c => events::VirtualKeyCode::NumpadEnter,
+        //0x4d => unkown,
+        0x4e => events::VirtualKeyCode::Subtract,
+        //0x4f => F18 key,
+        //0x50 => F19 Key,
+        0x51 => events::VirtualKeyCode::NumpadEquals,
+        0x52 => events::VirtualKeyCode::Numpad0,
+        0x53 => events::VirtualKeyCode::Numpad1,
+        0x54 => events::VirtualKeyCode::Numpad2,
+        0x55 => events::VirtualKeyCode::Numpad3,
+        0x56 => events::VirtualKeyCode::Numpad4,
+        0x57 => events::VirtualKeyCode::Numpad5,
+        0x58 => events::VirtualKeyCode::Numpad6,
+        0x59 => events::VirtualKeyCode::Numpad7,
+        //0x5a => F20 Key,
+        0x5b => events::VirtualKeyCode::Numpad8,
+        0x5c => events::VirtualKeyCode::Numpad9,
+        //0x5d => unkown,
+        //0x5e => unkown,
+        //0x5f => unkown,
+        0x60 => events::VirtualKeyCode::F5,
+        0x61 => events::VirtualKeyCode::F6,
+        0x62 => events::VirtualKeyCode::F7,
+        0x63 => events::VirtualKeyCode::F3,
+        0x64 => events::VirtualKeyCode::F8,
+        0x65 => events::VirtualKeyCode::F9,
+        //0x66 => unkown,
+        0x67 => events::VirtualKeyCode::F11,
+        //0x68 => unkown,
+        0x69 => events::VirtualKeyCode::F13,
+        //0x6a => F16 Key,
+        0x6b => events::VirtualKeyCode::F14,
+        //0x6c => unkown,
+        0x6d => events::VirtualKeyCode::F10,
+        //0x6e => unkown,
+        0x6f => events::VirtualKeyCode::F12,
+        //0x70 => unkown,
+        0x71 => events::VirtualKeyCode::F15,
+        0x72 => events::VirtualKeyCode::Insert,
+        0x73 => events::VirtualKeyCode::Home,
+        0x74 => events::VirtualKeyCode::PageUp,
+        0x75 => events::VirtualKeyCode::Delete,
+        0x76 => events::VirtualKeyCode::F4,
+        0x77 => events::VirtualKeyCode::End,
+        0x78 => events::VirtualKeyCode::F2,
+        0x79 => events::VirtualKeyCode::PageDown,
+        0x7a => events::VirtualKeyCode::F1,
+        0x7b => events::VirtualKeyCode::Left,
+        0x7c => events::VirtualKeyCode::Right,
+        0x7d => events::VirtualKeyCode::Down,
+        0x7e => events::VirtualKeyCode::Up,
+        //0x7f =>  unkown,
+
+        _ => return None,
+    })
+}

src/platform/macos/mod.rs

@@ -1,3 +1,771 @@
 #![cfg(target_os = "macos")]
 
-pub use api::cocoa::*;
+use {CreationError, Event, MouseCursor, CursorState};
+use CreationError::OsError;
+use libc;
+
+use WindowAttributes;
+use native_monitor::NativeMonitorId;
+use os::macos::ActivationPolicy;
+
+use objc::runtime::{Class, Object, Sel, BOOL, YES, NO};
+use objc::declare::ClassDecl;
+
+use cocoa::base::{id, nil};
+use cocoa::foundation::{NSAutoreleasePool, NSDate, NSDefaultRunLoopMode, NSPoint, NSRect, NSSize,
+                        NSString, NSUInteger};
+use cocoa::appkit::{self, NSApplication, NSEvent, NSView, NSWindow};
+
+use core_graphics::display::{CGAssociateMouseAndMouseCursorPosition, CGMainDisplayID, CGDisplayPixelsHigh, CGWarpMouseCursorPosition};
+
+use std::ffi::CStr;
+use std::collections::VecDeque;
+use std::str::from_utf8;
+use std::sync::Mutex;
+use std::ops::Deref;
+use std::os::raw::c_void;
+
+use os::macos::WindowExt;
+use events::ElementState;
+use events::{self, MouseButton, TouchPhase};
+
+pub use self::monitor::{MonitorId, get_available_monitors, get_primary_monitor};
+
+mod monitor;
+mod event;
+
+static mut shift_pressed: bool = false;
+static mut ctrl_pressed: bool = false;
+static mut win_pressed: bool = false;
+static mut alt_pressed: bool = false;
+
+struct DelegateState {
+    view: IdRef,
+    window: IdRef,
+    resize_handler: Option<fn(u32, u32)>,
+
+    /// Events that have been retreived with XLib but not dispatched with iterators yet
+    pending_events: Mutex<VecDeque<Event>>,
+}
+
+struct WindowDelegate {
+    state: Box<DelegateState>,
+    _this: IdRef,
+}
+
+impl WindowDelegate {
+    /// Get the delegate class, initiailizing it neccessary
+    fn class() -> *const Class {
+        use std::os::raw::c_void;
+        use std::sync::{Once, ONCE_INIT};
+
+        extern fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = state as *mut DelegateState;
+                (*state).pending_events.lock().unwrap().push_back(Event::Closed);
+            }
+            YES
+        }
+
+        extern fn window_did_resize(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = &mut *(state as *mut DelegateState);
+
+                // need to notify context before (?) event
+                // let _: () = msg_send![*state.context, update];
+
+                if let Some(handler) = state.resize_handler {
+                    let rect = NSView::frame(*state.view);
+                    let scale_factor = NSWindow::backingScaleFactor(*state.window) as f32;
+                    (handler)((scale_factor * rect.size.width as f32) as u32,
+                              (scale_factor * rect.size.height as f32) as u32);
+                }
+            }
+        }
+
+        extern fn window_did_become_key(this: &Object, _: Sel, _: id) {
+            unsafe {
+                // TODO: center the cursor if the window had mouse grab when it
+                // lost focus
+
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = state as *mut DelegateState;
+                (*state).pending_events.lock().unwrap().push_back(Event::Focused(true));
+            }
+        }
+
+        extern fn window_did_resign_key(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = state as *mut DelegateState;
+                (*state).pending_events.lock().unwrap().push_back(Event::Focused(false));
+            }
+        }
+
+        static mut delegate_class: *const Class = 0 as *const Class;
+        static INIT: Once = ONCE_INIT;
+
+        INIT.call_once(|| unsafe {
+            // Create new NSWindowDelegate
+            let superclass = Class::get("NSObject").unwrap();
+            let mut decl = ClassDecl::new("GlutinWindowDelegate", superclass).unwrap();
+
+            // Add callback methods
+            decl.add_method(sel!(windowShouldClose:),
+                window_should_close as extern fn(&Object, Sel, id) -> BOOL);
+            decl.add_method(sel!(windowDidResize:),
+                window_did_resize as extern fn(&Object, Sel, id));
+
+            decl.add_method(sel!(windowDidBecomeKey:),
+                window_did_become_key as extern fn(&Object, Sel, id));
+            decl.add_method(sel!(windowDidResignKey:),
+                window_did_resign_key as extern fn(&Object, Sel, id));
+
+            // Store internal state as user data
+            decl.add_ivar::<*mut c_void>("glutinState");
+
+            delegate_class = decl.register();
+        });
+
+        unsafe {
+            delegate_class
+        }
+    }
+
+    fn new(state: DelegateState) -> WindowDelegate {
+        // Box the state so we can give a pointer to it
+        let mut state = Box::new(state);
+        let state_ptr: *mut DelegateState = &mut *state;
+        unsafe {
+            let delegate = IdRef::new(msg_send![WindowDelegate::class(), new]);
+
+            (&mut **delegate).set_ivar("glutinState", state_ptr as *mut ::std::os::raw::c_void);
+            let _: () = msg_send![*state.window, setDelegate:*delegate];
+
+            WindowDelegate { state: state, _this: delegate }
+        }
+    }
+}
+
+impl Drop for WindowDelegate {
+    fn drop(&mut self) {
+        unsafe {
+            // Nil the window's delegate so it doesn't still reference us
+            let _: () = msg_send![*self.state.window, setDelegate:nil];
+        }
+    }
+}
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificWindowBuilderAttributes {
+    pub activation_policy: ActivationPolicy,
+}
+
+pub struct Window {
+    view: IdRef,
+    window: IdRef,
+    delegate: WindowDelegate,
+}
+
+unsafe impl Send for Window {}
+unsafe impl Sync for Window {}
+
+impl WindowExt for Window {
+    #[inline]
+    fn get_nswindow(&self) -> *mut c_void {
+        *self.window as *mut c_void
+    }
+
+    #[inline]
+    fn get_nsview(&self) -> *mut c_void {
+        *self.view as *mut c_void
+    }
+}
+
+#[derive(Clone)]
+pub struct WindowProxy;
+
+impl WindowProxy {
+    pub fn wakeup_event_loop(&self) {
+        unsafe {
+            let pool = NSAutoreleasePool::new(nil);
+            let event =
+                NSEvent::otherEventWithType_location_modifierFlags_timestamp_windowNumber_context_subtype_data1_data2_(
+                    nil, appkit::NSApplicationDefined, NSPoint::new(0.0, 0.0), appkit::NSEventModifierFlags::empty(),
+                    0.0, 0, nil, appkit::NSEventSubtype::NSApplicationActivatedEventType, 0, 0);
+            appkit::NSApp().postEvent_atStart_(event, NO);
+            pool.drain();
+        }
+    }
+}
+
+pub struct PollEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for PollEventsIterator<'a> {
+    type Item = Event;
+
+    fn next(&mut self) -> Option<Event> {
+        if let Some(ev) = self.window.delegate.state.pending_events.lock().unwrap().pop_front() {
+            return Some(ev);
+        }
+
+        let event: Option<Event>;
+        unsafe {
+            let pool = NSAutoreleasePool::new(nil);
+
+            let nsevent = appkit::NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
+                appkit::NSAnyEventMask.bits() | appkit::NSEventMaskPressure.bits(),
+                NSDate::distantPast(nil),
+                NSDefaultRunLoopMode,
+                YES);
+            event = NSEventToEvent(self.window, nsevent);
+
+            let _: () = msg_send![pool, release];
+        }
+        event
+    }
+}
+
+pub struct WaitEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for WaitEventsIterator<'a> {
+    type Item = Event;
+
+    fn next(&mut self) -> Option<Event> {
+        if let Some(ev) = self.window.delegate.state.pending_events.lock().unwrap().pop_front() {
+            return Some(ev);
+        }
+
+        let event: Option<Event>;
+        unsafe {
+            let pool = NSAutoreleasePool::new(nil);
+
+            let nsevent = appkit::NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
+                appkit::NSAnyEventMask.bits() | appkit::NSEventMaskPressure.bits(),
+                NSDate::distantFuture(nil),
+                NSDefaultRunLoopMode,
+                YES);
+            event = NSEventToEvent(self.window, nsevent);
+
+            let _: () = msg_send![pool, release];
+        }
+
+        if event.is_none() {
+            return Some(Event::Awakened);
+        } else {
+            return event;
+        }
+    }
+}
+
+impl Window {
+    pub fn new(win_attribs: &WindowAttributes,
+               pl_attribs: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window, CreationError>
+    {
+        // not implemented
+        assert!(win_attribs.min_dimensions.is_none());
+        assert!(win_attribs.max_dimensions.is_none());
+
+        // let app = match Window::create_app() {
+        let app = match Window::create_app(pl_attribs.activation_policy) {
+            Some(app) => app,
+            None      => { return Err(OsError(format!("Couldn't create NSApplication"))); },
+        };
+
+        let window = match Window::create_window(win_attribs)
+        {
+            Some(window) => window,
+            None         => { return Err(OsError(format!("Couldn't create NSWindow"))); },
+        };
+        let view = match Window::create_view(*window) {
+            Some(view) => view,
+            None       => { return Err(OsError(format!("Couldn't create NSView"))); },
+        };
+
+        unsafe {
+            if win_attribs.transparent {
+                unimplemented!();
+            }
+
+            app.activateIgnoringOtherApps_(YES);
+            if win_attribs.visible {
+                window.makeKeyAndOrderFront_(nil);
+            } else {
+                window.makeKeyWindow();
+            }
+        }
+
+        let ds = DelegateState {
+            view: view.clone(),
+            window: window.clone(),
+            resize_handler: None,
+            pending_events: Mutex::new(VecDeque::new()),
+        };
+
+        let window = Window {
+            view: view,
+            window: window,
+            delegate: WindowDelegate::new(ds),
+        };
+
+        Ok(window)
+    }
+
+    fn create_app(activation_policy: ActivationPolicy) -> Option<id> {
+        unsafe {
+            let app = appkit::NSApp();
+            if app == nil {
+                None
+            } else {
+                app.setActivationPolicy_(activation_policy.into());
+                app.finishLaunching();
+                Some(app)
+            }
+        }
+    }
+
+    fn create_window(attrs: &WindowAttributes) -> Option<IdRef> {
+        unsafe {
+            let screen = match attrs.monitor {
+                Some(ref monitor_id) => {
+                    let native_id = match monitor_id.get_native_identifier() {
+                        NativeMonitorId::Numeric(num) => num,
+                        _ => panic!("OS X monitors should always have a numeric native ID")
+                    };
+                    let matching_screen = {
+                        let screens = appkit::NSScreen::screens(nil);
+                        let count: NSUInteger = msg_send![screens, count];
+                        let key = IdRef::new(NSString::alloc(nil).init_str("NSScreenNumber"));
+                        let mut matching_screen: Option<id> = None;
+                        for i in 0..count {
+                            let screen = msg_send![screens, objectAtIndex:i as NSUInteger];
+                            let device_description = appkit::NSScreen::deviceDescription(screen);
+                            let value: id = msg_send![device_description, objectForKey:*key];
+                            if value != nil {
+                                let screen_number: NSUInteger = msg_send![value, unsignedIntegerValue];
+                                if screen_number as u32 == native_id {
+                                    matching_screen = Some(screen);
+                                    break;
+                                }
+                            }
+                        }
+                        matching_screen
+                    };
+                    Some(matching_screen.unwrap_or(appkit::NSScreen::mainScreen(nil)))
+                },
+                None => None
+            };
+            let frame = match screen {
+                Some(screen) => appkit::NSScreen::frame(screen),
+                None => {
+                    let (width, height) = attrs.dimensions.unwrap_or((800, 600));
+                    NSRect::new(NSPoint::new(0., 0.), NSSize::new(width as f64, height as f64))
+                }
+            };
+
+            let masks = if screen.is_some() || attrs.transparent {
+                // Fullscreen or transparent window
+                appkit::NSBorderlessWindowMask as NSUInteger |
+                appkit::NSResizableWindowMask as NSUInteger |
+                appkit::NSTitledWindowMask as NSUInteger
+            } else if attrs.decorations {
+                // Classic opaque window with titlebar
+                appkit::NSClosableWindowMask as NSUInteger |
+                appkit::NSMiniaturizableWindowMask as NSUInteger |
+                appkit::NSResizableWindowMask as NSUInteger |
+                appkit::NSTitledWindowMask as NSUInteger
+            } else {
+                // Opaque window without a titlebar
+                appkit::NSClosableWindowMask as NSUInteger |
+                appkit::NSMiniaturizableWindowMask as NSUInteger |
+                appkit::NSResizableWindowMask as NSUInteger |
+                appkit::NSTitledWindowMask as NSUInteger |
+                appkit::NSFullSizeContentViewWindowMask as NSUInteger
+            };
+
+            let window = IdRef::new(NSWindow::alloc(nil).initWithContentRect_styleMask_backing_defer_(
+                frame,
+                masks,
+                appkit::NSBackingStoreBuffered,
+                NO,
+            ));
+            window.non_nil().map(|window| {
+                let title = IdRef::new(NSString::alloc(nil).init_str(&attrs.title));
+                window.setReleasedWhenClosed_(NO);
+                window.setTitle_(*title);
+                window.setAcceptsMouseMovedEvents_(YES);
+
+                if !attrs.decorations {
+                    window.setTitleVisibility_(appkit::NSWindowTitleVisibility::NSWindowTitleHidden);
+                    window.setTitlebarAppearsTransparent_(YES);
+                }
+
+                if screen.is_some() {
+                    window.setLevel_(appkit::NSMainMenuWindowLevel as i64 + 1);
+                }
+                else {
+                    window.center();
+                }
+                window
+            })
+        }
+    }
+
+    fn create_view(window: id) -> Option<IdRef> {
+        unsafe {
+            let view = IdRef::new(NSView::alloc(nil).init());
+            view.non_nil().map(|view| {
+                view.setWantsBestResolutionOpenGLSurface_(YES);
+                window.setContentView_(*view);
+                view
+            })
+        }
+    }
+
+    pub fn set_title(&self, title: &str) {
+        unsafe {
+            let title = IdRef::new(NSString::alloc(nil).init_str(title));
+            self.window.setTitle_(*title);
+        }
+    }
+
+    #[inline]
+    pub fn show(&self) {
+        unsafe { NSWindow::makeKeyAndOrderFront_(*self.window, nil); }
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+        unsafe { NSWindow::orderOut_(*self.window, nil); }
+    }
+
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        unsafe {
+            let content_rect = NSWindow::contentRectForFrameRect_(*self.window, NSWindow::frame(*self.window));
+
+            // TODO: consider extrapolating the calculations for the y axis to
+            // a private method
+            Some((content_rect.origin.x as i32, (CGDisplayPixelsHigh(CGMainDisplayID()) as f64 - (content_rect.origin.y + content_rect.size.height)) as i32))
+        }
+    }
+
+    pub fn set_position(&self, x: i32, y: i32) {
+        unsafe {
+            let frame = NSWindow::frame(*self.view);
+
+            // NOTE: `setFrameOrigin` might not give desirable results when
+            // setting window, as it treats bottom left as origin.
+            // `setFrameTopLeftPoint` treats top left as origin (duh), but
+            // does not equal the value returned by `get_window_position`
+            // (there is a difference by 22 for me on yosemite)
+
+            // TODO: consider extrapolating the calculations for the y axis to
+            // a private method
+            let dummy = NSRect::new(NSPoint::new(x as f64, CGDisplayPixelsHigh(CGMainDisplayID()) as f64 - (frame.size.height + y as f64)), NSSize::new(0f64, 0f64));
+            let conv = NSWindow::frameRectForContentRect_(*self.window, dummy);
+
+            // NSWindow::setFrameTopLeftPoint_(*self.window, conv.origin);
+            NSWindow::setFrameOrigin_(*self.window, conv.origin);
+        }
+    }
+
+    #[inline]
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        unsafe {
+            let view_frame = NSView::frame(*self.view);
+            Some((view_frame.size.width as u32, view_frame.size.height as u32))
+        }
+    }
+
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        unsafe {
+            let window_frame = NSWindow::frame(*self.window);
+            Some((window_frame.size.width as u32, window_frame.size.height as u32))
+        }
+    }
+
+    #[inline]
+    pub fn set_inner_size(&self, width: u32, height: u32) {
+        unsafe {
+            NSWindow::setContentSize_(*self.window, NSSize::new(width as f64, height as f64));
+        }
+    }
+
+    #[inline]
+    pub fn create_window_proxy(&self) -> WindowProxy {
+        WindowProxy
+    }
+
+    #[inline]
+    pub fn poll_events(&self) -> PollEventsIterator {
+        PollEventsIterator {
+            window: self
+        }
+    }
+
+    #[inline]
+    pub fn wait_events(&self) -> WaitEventsIterator {
+        WaitEventsIterator {
+            window: self
+        }
+    }
+
+    unsafe fn modifier_event(event: id, keymask: appkit::NSEventModifierFlags, key: events::VirtualKeyCode, key_pressed: bool) -> Option<Event> {
+        if !key_pressed && NSEvent::modifierFlags(event).contains(keymask) {
+            return Some(Event::KeyboardInput(ElementState::Pressed, NSEvent::keyCode(event) as u8, Some(key)));
+        } else if key_pressed && !NSEvent::modifierFlags(event).contains(keymask) {
+            return Some(Event::KeyboardInput(ElementState::Released, NSEvent::keyCode(event) as u8, Some(key)));
+        }
+
+        return None;
+    }
+
+    #[inline]
+    pub fn platform_display(&self) -> *mut libc::c_void {
+        unimplemented!()
+    }
+
+    #[inline]
+    pub fn platform_window(&self) -> *mut libc::c_void {
+        *self.window as *mut libc::c_void
+    }
+
+    #[inline]
+    pub fn set_window_resize_callback(&mut self, callback: Option<fn(u32, u32)>) {
+        self.delegate.state.resize_handler = callback;
+    }
+
+    pub fn set_cursor(&self, cursor: MouseCursor) {
+        let cursor_name = match cursor {
+            MouseCursor::Arrow | MouseCursor::Default => "arrowCursor",
+            MouseCursor::Hand => "pointingHandCursor",
+            MouseCursor::Grabbing | MouseCursor::Grab => "closedHandCursor",
+            MouseCursor::Text => "IBeamCursor",
+            MouseCursor::VerticalText => "IBeamCursorForVerticalLayout",
+            MouseCursor::Copy => "dragCopyCursor",
+            MouseCursor::Alias => "dragLinkCursor",
+            MouseCursor::NotAllowed | MouseCursor::NoDrop => "operationNotAllowedCursor",
+            MouseCursor::ContextMenu => "contextualMenuCursor",
+            MouseCursor::Crosshair => "crosshairCursor",
+            MouseCursor::EResize => "resizeRightCursor",
+            MouseCursor::NResize => "resizeUpCursor",
+            MouseCursor::WResize => "resizeLeftCursor",
+            MouseCursor::SResize => "resizeDownCursor",
+            MouseCursor::EwResize | MouseCursor::ColResize => "resizeLeftRightCursor",
+            MouseCursor::NsResize | MouseCursor::RowResize => "resizeUpDownCursor",
+
+            /// TODO: Find appropriate OSX cursors
+            MouseCursor::NeResize | MouseCursor::NwResize |
+            MouseCursor::SeResize | MouseCursor::SwResize |
+            MouseCursor::NwseResize | MouseCursor::NeswResize |
+
+            MouseCursor::Cell | MouseCursor::NoneCursor |
+            MouseCursor::Wait | MouseCursor::Progress | MouseCursor::Help |
+            MouseCursor::Move | MouseCursor::AllScroll | MouseCursor::ZoomIn |
+            MouseCursor::ZoomOut => "arrowCursor",
+        };
+        let sel = Sel::register(cursor_name);
+        let cls = Class::get("NSCursor").unwrap();
+        unsafe {
+            use objc::Message;
+            let cursor: id = cls.send_message(sel, ()).unwrap();
+            let _: () = msg_send![cursor, set];
+        }
+    }
+
+    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+        let cls = Class::get("NSCursor").unwrap();
+
+        // TODO: Check for errors.
+        match state {
+            CursorState::Normal => {
+                let _: () = unsafe { msg_send![cls, unhide] };
+                let _: i32 = unsafe { CGAssociateMouseAndMouseCursorPosition(true) };
+                Ok(())
+            },
+            CursorState::Hide => {
+                let _: () = unsafe { msg_send![cls, hide] };
+                Ok(())
+            },
+            CursorState::Grab => {
+                let _: i32 = unsafe { CGAssociateMouseAndMouseCursorPosition(false) };
+                Ok(())
+            }
+        }
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+        unsafe {
+            NSWindow::backingScaleFactor(*self.window) as f32
+        }
+    }
+
+    #[inline]
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        let (window_x, window_y) = self.get_position().unwrap_or((0, 0));
+        let (cursor_x, cursor_y) = (window_x + x, window_y + y);
+
+        unsafe {
+            // TODO: Check for errors.
+            let _ = CGWarpMouseCursorPosition(appkit::CGPoint {
+                x: cursor_x as appkit::CGFloat,
+                y: cursor_y as appkit::CGFloat,
+            });
+            let _ = CGAssociateMouseAndMouseCursorPosition(true);
+        }
+
+        Ok(())
+    }
+}
+
+struct IdRef(id);
+
+impl IdRef {
+    fn new(i: id) -> IdRef {
+        IdRef(i)
+    }
+
+    #[allow(dead_code)]
+    fn retain(i: id) -> IdRef {
+        if i != nil {
+            let _: id = unsafe { msg_send![i, retain] };
+        }
+        IdRef(i)
+    }
+
+    fn non_nil(self) -> Option<IdRef> {
+        if self.0 == nil { None } else { Some(self) }
+    }
+}
+
+impl Drop for IdRef {
+    fn drop(&mut self) {
+        if self.0 != nil {
+            let _: () = unsafe { msg_send![self.0, release] };
+        }
+    }
+}
+
+impl Deref for IdRef {
+    type Target = id;
+    fn deref<'a>(&'a self) -> &'a id {
+        &self.0
+    }
+}
+
+impl Clone for IdRef {
+    fn clone(&self) -> IdRef {
+        if self.0 != nil {
+            let _: id = unsafe { msg_send![self.0, retain] };
+        }
+        IdRef(self.0)
+    }
+}
+
+#[allow(non_snake_case, non_upper_case_globals)]
+unsafe fn NSEventToEvent(window: &Window, nsevent: id) -> Option<Event> {
+    if nsevent == nil { return None; }
+
+    let event_type = nsevent.eventType();
+    appkit::NSApp().sendEvent_(if let appkit::NSKeyDown = event_type { nil } else { nsevent });
+
+    match event_type {
+        appkit::NSLeftMouseDown         => { Some(Event::MouseInput(ElementState::Pressed, MouseButton::Left)) },
+        appkit::NSLeftMouseUp           => { Some(Event::MouseInput(ElementState::Released, MouseButton::Left)) },
+        appkit::NSRightMouseDown        => { Some(Event::MouseInput(ElementState::Pressed, MouseButton::Right)) },
+        appkit::NSRightMouseUp          => { Some(Event::MouseInput(ElementState::Released, MouseButton::Right)) },
+        appkit::NSMouseMoved            |
+        appkit::NSLeftMouseDragged      |
+        appkit::NSOtherMouseDragged     |
+        appkit::NSRightMouseDragged     => {
+            let window_point = nsevent.locationInWindow();
+            let cWindow: id = msg_send![nsevent, window];
+            let view_point = if cWindow == nil {
+                let window_rect = window.window.convertRectFromScreen_(NSRect::new(window_point, NSSize::new(0.0, 0.0)));
+                window.view.convertPoint_fromView_(window_rect.origin, nil)
+            } else {
+                window.view.convertPoint_fromView_(window_point, nil)
+            };
+            let view_rect = NSView::frame(*window.view);
+            let scale_factor = window.hidpi_factor();
+
+            Some(Event::MouseMoved((scale_factor * view_point.x as f32) as i32,
+                                   (scale_factor * (view_rect.size.height - view_point.y) as f32) as i32))
+        },
+        appkit::NSKeyDown => {
+            let mut events = VecDeque::new();
+            let received_c_str = nsevent.characters().UTF8String();
+            let received_str = CStr::from_ptr(received_c_str);
+            for received_char in from_utf8(received_str.to_bytes()).unwrap().chars() {
+                events.push_back(Event::ReceivedCharacter(received_char));
+            }
+
+            let vkey =  event::vkeycode_to_element(NSEvent::keyCode(nsevent));
+            events.push_back(Event::KeyboardInput(ElementState::Pressed, NSEvent::keyCode(nsevent) as u8, vkey));
+            let event = events.pop_front();
+            window.delegate.state.pending_events.lock().unwrap().extend(events.into_iter());
+            event
+        },
+        appkit::NSKeyUp => {
+            let vkey =  event::vkeycode_to_element(NSEvent::keyCode(nsevent));
+
+            Some(Event::KeyboardInput(ElementState::Released, NSEvent::keyCode(nsevent) as u8, vkey))
+        },
+        appkit::NSFlagsChanged => {
+            let mut events = VecDeque::new();
+            let shift_modifier = Window::modifier_event(nsevent, appkit::NSShiftKeyMask, events::VirtualKeyCode::LShift, shift_pressed);
+            if shift_modifier.is_some() {
+                shift_pressed = !shift_pressed;
+                events.push_back(shift_modifier.unwrap());
+            }
+            let ctrl_modifier = Window::modifier_event(nsevent, appkit::NSControlKeyMask, events::VirtualKeyCode::LControl, ctrl_pressed);
+            if ctrl_modifier.is_some() {
+                ctrl_pressed = !ctrl_pressed;
+                events.push_back(ctrl_modifier.unwrap());
+            }
+            let win_modifier = Window::modifier_event(nsevent, appkit::NSCommandKeyMask, events::VirtualKeyCode::LWin, win_pressed);
+            if win_modifier.is_some() {
+                win_pressed = !win_pressed;
+                events.push_back(win_modifier.unwrap());
+            }
+            let alt_modifier = Window::modifier_event(nsevent, appkit::NSAlternateKeyMask, events::VirtualKeyCode::LAlt, alt_pressed);
+            if alt_modifier.is_some() {
+                alt_pressed = !alt_pressed;
+                events.push_back(alt_modifier.unwrap());
+            }
+            let event = events.pop_front();
+            window.delegate.state.pending_events.lock().unwrap().extend(events.into_iter());
+            event
+        },
+        appkit::NSScrollWheel => {
+            use events::MouseScrollDelta::{LineDelta, PixelDelta};
+            let scale_factor = window.hidpi_factor();
+            let delta = if nsevent.hasPreciseScrollingDeltas() == YES {
+                PixelDelta(scale_factor * nsevent.scrollingDeltaX() as f32,
+                           scale_factor * nsevent.scrollingDeltaY() as f32)
+            } else {
+                LineDelta(scale_factor * nsevent.scrollingDeltaX() as f32,
+                          scale_factor * nsevent.scrollingDeltaY() as f32)
+            };
+            let phase = match nsevent.phase() {
+                appkit::NSEventPhaseMayBegin | appkit::NSEventPhaseBegan => TouchPhase::Started,
+                appkit::NSEventPhaseEnded => TouchPhase::Ended,
+                _ => TouchPhase::Moved,
+            };
+            Some(Event::MouseWheel(delta, phase))
+        },
+        appkit::NSEventTypePressure => {
+            Some(Event::TouchpadPressure(nsevent.pressure(), nsevent.stage()))
+        },
+        _  => { None },
+    }
+}

src/platform/macos/monitor.rs

@@ -0,0 +1,56 @@
+use core_graphics::display;
+use std::collections::VecDeque;
+use native_monitor::NativeMonitorId;
+
+#[derive(Clone)]
+pub struct MonitorId(u32);
+
+pub fn get_available_monitors() -> VecDeque<MonitorId> {
+    let mut monitors = VecDeque::new();
+    unsafe {
+        let max_displays = 10u32;
+        let mut active_displays = [0u32; 10];
+        let mut display_count = 0;
+        display::CGGetActiveDisplayList(max_displays,
+                                                        &mut active_displays[0],
+                                                        &mut display_count);
+        for i in 0..display_count as usize {
+            monitors.push_back(MonitorId(active_displays[i]));
+        }
+    }
+    monitors
+}
+
+#[inline]
+pub fn get_primary_monitor() -> MonitorId {
+    let id = unsafe {
+        MonitorId(display::CGMainDisplayID())
+    };
+    id
+}
+
+impl MonitorId {
+    pub fn get_name(&self) -> Option<String> {
+        let MonitorId(display_id) = *self;
+        let screen_num = unsafe {
+            display::CGDisplayModelNumber(display_id)
+        };
+        Some(format!("Monitor #{}", screen_num))
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> NativeMonitorId {
+        let MonitorId(display_id) = *self;
+        NativeMonitorId::Numeric(display_id)
+    }
+
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        let MonitorId(display_id) = *self;
+        let dimension = unsafe {
+            let height = display::CGDisplayPixelsHigh(display_id);
+            let width = display::CGDisplayPixelsWide(display_id);
+            (width as u32, height as u32)
+        };
+        dimension
+    }
+}