#[cfg(feature = "headless")]
pub use self::headless::HeadlessContext;
use {CreationError, Event};
use CreationError::OsError;
use libc;
use BuilderAttribs;
use cocoa::base::{id, NSUInteger, nil, objc_allocateClassPair, class, objc_registerClassPair};
use cocoa::base::{selector, msg_send, class_addMethod, class_addIvar};
use cocoa::base::{object_setInstanceVariable, object_getInstanceVariable};
use cocoa::appkit;
use cocoa::appkit::*;
use core_foundation::base::TCFType;
use core_foundation::string::CFString;
use core_foundation::bundle::{CFBundleGetBundleWithIdentifier, CFBundleGetFunctionPointerForName};
use std::cell::Cell;
use std::c_str::CString;
use std::mem;
use std::ptr;
use std::collections::RingBuf;
use events::Event::{MouseInput, MouseMoved, ReceivedCharacter, KeyboardInput, MouseWheel};
use events::ElementState::{Pressed, Released};
use events::MouseButton::{LeftMouseButton, RightMouseButton};
use events;
pub use self::monitor::{MonitorID, get_available_monitors, get_primary_monitor};
mod monitor;
mod event;
#[cfg(feature = "headless")]
mod headless;
static mut shift_pressed: bool = false;
static mut ctrl_pressed: bool = false;
static mut win_pressed: bool = false;
static mut alt_pressed: bool = false;
static DELEGATE_NAME: &'static [u8] = b"glutin_window_delegate\0";
static DELEGATE_STATE_IVAR: &'static [u8] = b"glutin_state";
struct DelegateState<'a> {
is_closed: bool,
context: id,
view: id,
handler: Option<fn(uint, uint)>,
}
pub struct Window {
view: id,
window: id,
context: id,
delegate: id,
resize: Option<fn(uint, uint)>,
is_closed: Cell<bool>,
}
#[cfg(feature = "window")]
impl Window {
pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> {
if builder.sharing.is_some() {
unimplemented!()
}
Window::new_impl(builder.dimensions, builder.title.as_slice(), builder.monitor, builder.vsync, builder.visible)
}
}
#[cfg(feature = "window")]
unsafe impl Send for Window {}
#[cfg(feature = "window")]
unsafe impl Sync for Window {}
#[cfg(feature = "window")]
#[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,
NSApplicationDefined,
NSPoint::new(0.0, 0.0),
0,
0.0,
0,
ptr::null_mut(),
0,
0,
0);
NSApp().postEvent_atStart_(event, true);
pool.drain();
}
}
}
extern fn window_should_close(this: id, _: id) -> id {
unsafe {
let mut stored_value = ptr::null_mut();
object_getInstanceVariable(this, DELEGATE_STATE_IVAR.as_ptr() as *const i8, &mut stored_value);
let state = stored_value as *mut DelegateState;
(*state).is_closed = true;
}
0
}
extern fn window_did_resize(this: id, _: id) -> id {
unsafe {
let mut stored_value = ptr::null_mut();
object_getInstanceVariable(this, DELEGATE_STATE_IVAR.as_ptr() as *const i8, &mut stored_value);
let state = &mut *(stored_value as *mut DelegateState);
let _: id = msg_send()(state.context, selector("update"));
match state.handler {
Some(handler) => {
let rect = NSView::frame(state.view);
(handler)(rect.size.width as uint, rect.size.height as uint);
}
None => {}
}
}
0
}
impl Window {
fn new_impl(dimensions: Option<(uint, uint)>, title: &str, monitor: Option<MonitorID>,
vsync: bool, visible: bool) -> Result<Window, CreationError> {
let app = match Window::create_app() {
Some(app) => app,
None => { return Err(OsError(format!("Couldn't create NSApplication"))); },
};
let window = match Window::create_window(dimensions.unwrap_or((800, 600)), title, monitor) {
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"))); },
};
let context = match Window::create_context(view, vsync) {
Some(context) => context,
None => { return Err(OsError(format!("Couldn't create OpenGL context"))); },
};
unsafe {
app.activateIgnoringOtherApps_(true);
if visible {
window.makeKeyAndOrderFront_(nil);
} else {
window.makeKeyWindow();
}
}
let ptr_size = mem::size_of::<libc::intptr_t>() as u64;
let ns_object = class("NSObject");
let delegate = unsafe {
let delegate = objc_allocateClassPair(ns_object, DELEGATE_NAME.as_ptr() as *const i8, 0);
class_addMethod(delegate, selector("windowShouldClose:"), window_should_close, "B@:@".to_c_str().as_ptr());
class_addMethod(delegate, selector("windowDidResize:"), window_did_resize, "V@:@".to_c_str().as_ptr());
class_addIvar(delegate, DELEGATE_STATE_IVAR.as_ptr() as *const i8, ptr_size, 3, "?".to_c_str().as_ptr());
objc_registerClassPair(delegate);
let del_obj = msg_send()(delegate, selector("alloc"));
let del_obj: id = msg_send()(del_obj, selector("init"));
let _: id = msg_send()(window, selector("setDelegate:"), del_obj);
del_obj
};
let window = Window {
view: view,
window: window,
context: context,
delegate: delegate,
resize: None,
is_closed: Cell::new(false),
};
Ok(window)
}
fn create_app() -> Option<id> {
unsafe {
let app = NSApp();
if app == nil {
None
} else {
app.setActivationPolicy_(NSApplicationActivationPolicyRegular);
app.finishLaunching();
Some(app)
}
}
}
fn create_window(dimensions: (uint, uint), title: &str, monitor: Option<MonitorID>) -> Option<id> {
unsafe {
let scr_frame = match monitor {
Some(_) => {
let screen = NSScreen::mainScreen(nil);
NSScreen::frame(screen)
}
None => {
let (width, height) = dimensions;
NSRect::new(NSPoint::new(0., 0.), NSSize::new(width as f64, height as f64))
}
};
let masks = match monitor {
Some(_) => NSBorderlessWindowMask as NSUInteger,
None => NSTitledWindowMask as NSUInteger |
NSClosableWindowMask as NSUInteger |
NSMiniaturizableWindowMask as NSUInteger |
NSResizableWindowMask as NSUInteger,
};
let window = NSWindow::alloc(nil).initWithContentRect_styleMask_backing_defer_(
scr_frame,
masks,
NSBackingStoreBuffered,
false,
);
if window == nil {
None
} else {
let title = NSString::alloc(nil).init_str(title);
window.setTitle_(title);
window.setAcceptsMouseMovedEvents_(true);
if monitor.is_some() {
window.setLevel_(NSMainMenuWindowLevel as i64 + 1);
}
else {
window.center();
}
Some(window)
}
}
}
fn create_view(window: id) -> Option<id> {
unsafe {
let view = NSView::alloc(nil).init();
if view == nil {
None
} else {
view.setWantsBestResolutionOpenGLSurface_(true);
window.setContentView_(view);
Some(view)
}
}
}
fn create_context(view: id, vsync: bool) -> Option<id> {
unsafe {
let attributes = [
NSOpenGLPFADoubleBuffer as uint,
NSOpenGLPFAClosestPolicy as uint,
NSOpenGLPFAColorSize as uint, 24,
NSOpenGLPFAAlphaSize as uint, 8,
NSOpenGLPFADepthSize as uint, 24,
NSOpenGLPFAStencilSize as uint, 8,
0
];
let pixelformat = NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes);
if pixelformat == nil {
return None;
}
let context = NSOpenGLContext::alloc(nil).initWithFormat_shareContext_(pixelformat, nil);
if context == nil {
None
} else {
context.setView_(view);
if vsync {
let value = 1;
context.setValues_forParameter_(&value, NSOpenGLContextParameter::NSOpenGLCPSwapInterval);
}
Some(context)
}
}
}
pub fn is_closed(&self) -> bool {
self.is_closed.get()
}
pub fn set_title(&self, title: &str) {
unsafe {
let title = NSString::alloc(nil).init_str(title);
self.window.setTitle_(title);
}
}
pub fn show(&self) {
}
pub fn hide(&self) {
}
pub fn get_position(&self) -> Option<(int, int)> {
unimplemented!()
}
pub fn set_position(&self, _x: int, _y: int) {
unimplemented!()
}
pub fn get_inner_size(&self) -> Option<(uint, uint)> {
let rect = unsafe { NSView::frame(self.view) };
Some((rect.size.width as uint, rect.size.height as uint))
}
pub fn get_outer_size(&self) -> Option<(uint, uint)> {
unimplemented!()
}
pub fn set_inner_size(&self, _x: uint, _y: uint) {
unimplemented!()
}
pub fn create_window_proxy(&self) -> WindowProxy {
WindowProxy
}
pub fn poll_events(&self) -> RingBuf<Event> {
let mut events = RingBuf::new();
loop {
unsafe {
let event = NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
NSAnyEventMask as u64,
NSDate::distantPast(nil),
NSDefaultRunLoopMode,
true);
if event == nil { break; }
{
let mut ds = DelegateState {
is_closed: self.is_closed.get(),
context: self.context,
view: self.view,
handler: self.resize,
};
object_setInstanceVariable(self.delegate,
DELEGATE_STATE_IVAR.as_ptr() as *const i8,
&mut ds as *mut DelegateState as *mut libc::c_void);
NSApp().sendEvent_(event);
object_setInstanceVariable(self.delegate,
DELEGATE_STATE_IVAR.as_ptr() as *const i8,
ptr::null_mut());
self.is_closed.set(ds.is_closed);
}
match event.get_type() {
NSLeftMouseDown => { events.push_back(MouseInput(Pressed, LeftMouseButton)); },
NSLeftMouseUp => { events.push_back(MouseInput(Released, LeftMouseButton)); },
NSRightMouseDown => { events.push_back(MouseInput(Pressed, RightMouseButton)); },
NSRightMouseUp => { events.push_back(MouseInput(Released, RightMouseButton)); },
NSMouseMoved => {
let window_point = event.locationInWindow();
let view_point = self.view.convertPoint_fromView_(window_point, nil);
events.push_back(MouseMoved((view_point.x as int, view_point.y as int)));
},
NSKeyDown => {
let received_str = CString::new(event.characters().UTF8String(), false);
for received_char in received_str.as_str().unwrap().chars() {
if received_char.is_ascii() {
events.push_back(ReceivedCharacter(received_char));
}
}
let vkey = event::vkeycode_to_element(event.keycode());
events.push_back(KeyboardInput(Pressed, event.keycode() as u8, vkey));
},
NSKeyUp => {
let vkey = event::vkeycode_to_element(event.keycode());
events.push_back(KeyboardInput(Released, event.keycode() as u8, vkey));
},
NSFlagsChanged => {
let shift_modifier = Window::modifier_event(event, appkit::NSShiftKeyMask as u64, 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(event, appkit::NSControlKeyMask as u64, 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(event, appkit::NSCommandKeyMask as u64, 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(event, appkit::NSAlternateKeyMask as u64, events::VirtualKeyCode::LAlt, alt_pressed);
if alt_modifier.is_some() {
alt_pressed = !alt_pressed;
events.push_back(alt_modifier.unwrap());
}
},
NSScrollWheel => { events.push_back(MouseWheel(-event.scrollingDeltaY() as i32)); },
NSOtherMouseDown => { },
NSOtherMouseUp => { },
NSOtherMouseDragged => { },
_ => { },
}
}
}
events
}
unsafe fn modifier_event(event: id, keymask: u64, key: events::VirtualKeyCode, key_pressed: bool) -> Option<Event> {
if !key_pressed && Window::modifier_key_pressed(event, keymask) {
return Some(KeyboardInput(Pressed, event.keycode() as u8, Some(key)));
}
else if key_pressed && !Window::modifier_key_pressed(event, keymask) {
return Some(KeyboardInput(Released, event.keycode() as u8, Some(key)));
}
return None;
}
unsafe fn modifier_key_pressed(event: id, modifier: u64) -> bool {
event.modifierFlags() & modifier != 0
}
pub fn wait_events(&self) -> RingBuf<Event> {
unsafe {
let event = NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
NSAnyEventMask as u64,
NSDate::distantFuture(nil),
NSDefaultRunLoopMode,
false);
NSApp().sendEvent_(event);
self.poll_events()
}
}
pub unsafe fn make_current(&self) {
self.context.makeCurrentContext();
}
pub fn get_proc_address(&self, _addr: &str) -> *const () {
let symbol_name: CFString = from_str(_addr).unwrap();
let framework_name: CFString = from_str("com.apple.opengl").unwrap();
let framework = unsafe {
CFBundleGetBundleWithIdentifier(framework_name.as_concrete_TypeRef())
};
let symbol = unsafe {
CFBundleGetFunctionPointerForName(framework, symbol_name.as_concrete_TypeRef())
};
symbol as *const ()
}
pub fn swap_buffers(&self) {
unsafe { self.context.flushBuffer(); }
}
pub fn platform_display(&self) -> *mut libc::c_void {
unimplemented!()
}
pub fn get_api(&self) -> ::Api {
::Api::OpenGl
}
pub fn set_window_resize_callback(&mut self, callback: Option<fn(uint, uint)>) {
self.resize = callback;
}
}