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Merge pull request #132 from mitchmindtree/macos_event_loop

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Update the macOS backend to the new futures-compatible API.
This commit is contained in:
tomaka 2017-02-14 09:52:10 +01:00 committed by GitHub
parent 3ad1274a6d 24b44e3b8e
commit adf42909c8
6 changed files with 1242 additions and 969 deletions
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136
src/platform/macos/event.rs
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@ -1,136 +0,0 @@
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,
})
}

577
src/platform/macos/events_loop.rs Normal file
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@ -0,0 +1,577 @@
use cocoa::{self, appkit, foundation};
use cocoa::appkit::{NSApplication, NSEvent, NSView, NSWindow};
use events::{self, ElementState, Event, MouseButton, TouchPhase, WindowEvent};
use super::window::Window;
use std;
pub struct EventsLoop {
pub windows: std::sync::Mutex<Vec<std::sync::Arc<Window>>>,
pub pending_events: std::sync::Mutex<std::collections::VecDeque<Event>>,
modifiers: std::sync::Mutex<Modifiers>,
interrupted: std::sync::atomic::AtomicBool,
// The user event callback given via either of the `poll_events` or `run_forever` methods.
//
// We store the user's callback here so that it may be accessed by each of the window delegate
// callbacks (e.g. resize, close, etc) for the duration of a call to either of the
// `poll_events` or `run_forever` methods.
//
// This is *only* `Some` for the duration of a call to either of these methods and will be
// `None` otherwise.
pub user_callback: UserCallback,
}
struct Modifiers {
shift_pressed: bool,
ctrl_pressed: bool,
win_pressed: bool,
alt_pressed: bool,
}
// Wrapping the user callback in a type allows us to:
//
// - ensure the callback pointer is never accidentally cloned
// - ensure that only the `EventsLoop` can `store` and `drop` the callback pointer
// - `unsafe impl Send` and `Sync` so that `Send` and `Sync` can be implemented for `EventsLoop`.
pub struct UserCallback {
mutex: std::sync::Mutex<Option<*mut FnMut(Event)>>,
}
unsafe impl Send for UserCallback {}
unsafe impl Sync for UserCallback {}
impl UserCallback {
// Here we store user's `callback` behind the mutex so that they may be safely shared between
// each of the window delegates.
//
// In order to make sure that the pointer is always valid, we must manually guarantee that it
// is dropped before the callback itself is dropped. Thus, this should *only* be called at the
// beginning of a call to `poll_events` and `run_forever`, both of which *must* drop the
// callback at the end of their scope using the `drop` method.
fn store<F>(&self, callback: &mut F)
where F: FnMut(Event)
{
let trait_object = callback as &mut FnMut(Event);
let trait_object_ptr = trait_object as *const FnMut(Event) as *mut FnMut(Event);
*self.mutex.lock().unwrap() = Some(trait_object_ptr);
}
// Emits the given event via the user-given callback.
//
// This is *only* called within the `poll_events` and `run_forever` methods so we know that it
// is safe to `unwrap` the callback without causing a panic as there must be at least one
// callback stored.
//
// This is unsafe as it requires dereferencing the pointer to the user-given callback. We
// guarantee this is safe by ensuring the `UserCallback` never lives longer than the user-given
// callback.
pub unsafe fn call_with_event(&self, event: Event) {
let callback: *mut FnMut(Event) = self.mutex.lock().unwrap().take().unwrap();
(*callback)(event);
*self.mutex.lock().unwrap() = Some(callback);
}
// Used to drop the user callback pointer at the end of the `poll_events` and `run_forever`
// methods. This is done to enforce our guarantee that the top callback will never live longer
// than the call to either `poll_events` or `run_forever` to which it was given.
fn drop(&self) {
self.mutex.lock().unwrap().take();
}
}
impl EventsLoop {
pub fn new() -> Self {
let modifiers = Modifiers {
shift_pressed: false,
ctrl_pressed: false,
win_pressed: false,
alt_pressed: false,
};
EventsLoop {
windows: std::sync::Mutex::new(Vec::new()),
pending_events: std::sync::Mutex::new(std::collections::VecDeque::new()),
modifiers: std::sync::Mutex::new(modifiers),
interrupted: std::sync::atomic::AtomicBool::new(false),
user_callback: UserCallback { mutex: std::sync::Mutex::new(None) },
}
}
pub fn poll_events<F>(&self, mut callback: F)
where F: FnMut(Event),
{
unsafe {
if !msg_send![cocoa::base::class("NSThread"), isMainThread] {
panic!("Events can only be polled from the main thread on macOS");
}
}
self.user_callback.store(&mut callback);
// Loop as long as we have pending events to return.
loop {
unsafe {
// First, yield all pending events.
while let Some(event) = self.pending_events.lock().unwrap().pop_front() {
self.user_callback.call_with_event(event);
}
let pool = foundation::NSAutoreleasePool::new(cocoa::base::nil);
// Poll for the next event, returning `nil` if there are none.
let ns_event = appkit::NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
appkit::NSAnyEventMask.bits() | appkit::NSEventMaskPressure.bits(),
foundation::NSDate::distantPast(cocoa::base::nil),
foundation::NSDefaultRunLoopMode,
cocoa::base::YES);
let event = self.ns_event_to_event(ns_event);
let _: () = msg_send![pool, release];
match event {
// Call the user's callback.
Some(event) => self.user_callback.call_with_event(event),
None => break,
}
}
}
self.user_callback.drop();
}
pub fn run_forever<F>(&self, mut callback: F)
where F: FnMut(Event)
{
self.interrupted.store(false, std::sync::atomic::Ordering::Relaxed);
unsafe {
if !msg_send![cocoa::base::class("NSThread"), isMainThread] {
panic!("Events can only be polled from the main thread on macOS");
}
}
self.user_callback.store(&mut callback);
loop {
unsafe {
// First, yield all pending events.
while let Some(event) = self.pending_events.lock().unwrap().pop_front() {
self.user_callback.call_with_event(event);
}
let pool = foundation::NSAutoreleasePool::new(cocoa::base::nil);
// Wait for the next event. Note that this function blocks during resize.
let ns_event = appkit::NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
appkit::NSAnyEventMask.bits() | appkit::NSEventMaskPressure.bits(),
foundation::NSDate::distantFuture(cocoa::base::nil),
foundation::NSDefaultRunLoopMode,
cocoa::base::YES);
let maybe_event = self.ns_event_to_event(ns_event);
// Release the pool before calling the top callback in case the user calls either
// `run_forever` or `poll_events` within the callback.
let _: () = msg_send![pool, release];
if let Some(event) = maybe_event {
self.user_callback.call_with_event(event);
}
}
if self.interrupted.load(std::sync::atomic::Ordering::Relaxed) {
self.interrupted.store(false, std::sync::atomic::Ordering::Relaxed);
break;
}
}
self.user_callback.drop();
}
pub fn interrupt(&self) {
self.interrupted.store(true, std::sync::atomic::Ordering::Relaxed);
// Awaken the event loop by triggering `NSApplicationActivatedEventType`.
unsafe {
let pool = foundation::NSAutoreleasePool::new(cocoa::base::nil);
let event =
NSEvent::otherEventWithType_location_modifierFlags_timestamp_windowNumber_context_subtype_data1_data2_(
cocoa::base::nil,
appkit::NSApplicationDefined,
foundation::NSPoint::new(0.0, 0.0),
appkit::NSEventModifierFlags::empty(),
0.0,
0,
cocoa::base::nil,
appkit::NSEventSubtype::NSApplicationActivatedEventType,
0,
0);
appkit::NSApp().postEvent_atStart_(event, cocoa::base::NO);
foundation::NSAutoreleasePool::drain(pool);
}
}
// Convert some given `NSEvent` into a winit `Event`.
unsafe fn ns_event_to_event(&self, ns_event: cocoa::base::id) -> Option<Event> {
if ns_event == cocoa::base::nil {
return None;
}
// FIXME: Despite not being documented anywhere, an `NSEvent` is produced when a user opens
// Spotlight while the NSApplication is in focus. This `NSEvent` produces a `NSEventType`
// with value `21`. This causes a SEGFAULT as soon as we try to match on the `NSEventType`
// enum as there is no variant associated with the value. Thus, we return early if this
// sneaky event occurs. If someone does find some documentation on this, please fix this by
// adding an appropriate variant to the `NSEventType` enum in the cocoa-rs crate.
if ns_event.eventType() as u64 == 21 {
return None;
}
let event_type = ns_event.eventType();
let ns_window = ns_event.window();
let window_id = super::window::get_window_id(ns_window);
let windows = self.windows.lock().unwrap();
let maybe_window = windows.iter().find(|window| window_id == window.id());
// FIXME: Document this. Why do we do this? Seems like it passes on events to window/app.
// If we don't do this, window does not become main for some reason.
match event_type {
appkit::NSKeyDown => (),
_ => appkit::NSApp().sendEvent_(ns_event),
}
let into_event = |window_event| Event::WindowEvent {
window_id: ::WindowId(window_id),
event: window_event,
};
// Returns `Some` window if one of our windows is the key window.
let maybe_key_window = || windows.iter().find(|window| {
let is_key_window: cocoa::base::BOOL = msg_send![*window.window, isKeyWindow];
is_key_window == cocoa::base::YES
});
match event_type {
appkit::NSKeyDown => {
let mut events = std::collections::VecDeque::new();
let received_c_str = foundation::NSString::UTF8String(ns_event.characters());
let received_str = std::ffi::CStr::from_ptr(received_c_str);
for received_char in std::str::from_utf8(received_str.to_bytes()).unwrap().chars() {
let window_event = WindowEvent::ReceivedCharacter(received_char);
events.push_back(into_event(window_event));
}
let vkey = to_virtual_key_code(NSEvent::keyCode(ns_event));
let state = ElementState::Pressed;
let code = NSEvent::keyCode(ns_event) as u8;
let window_event = WindowEvent::KeyboardInput(state, code, vkey);
events.push_back(into_event(window_event));
let event = events.pop_front();
self.pending_events.lock().unwrap().extend(events.into_iter());
event
},
appkit::NSKeyUp => {
let vkey = to_virtual_key_code(NSEvent::keyCode(ns_event));
let state = ElementState::Released;
let code = NSEvent::keyCode(ns_event) as u8;
let window_event = WindowEvent::KeyboardInput(state, code, vkey);
Some(into_event(window_event))
},
appkit::NSFlagsChanged => {
let mut modifiers = self.modifiers.lock().unwrap();
unsafe fn modifier_event(event: cocoa::base::id,
keymask: appkit::NSEventModifierFlags,
key: events::VirtualKeyCode,
key_pressed: bool) -> Option<WindowEvent>
{
if !key_pressed && NSEvent::modifierFlags(event).contains(keymask) {
let state = ElementState::Pressed;
let code = NSEvent::keyCode(event) as u8;
let window_event = WindowEvent::KeyboardInput(state, code, Some(key));
Some(window_event)
} else if key_pressed && !NSEvent::modifierFlags(event).contains(keymask) {
let state = ElementState::Released;
let code = NSEvent::keyCode(event) as u8;
let window_event = WindowEvent::KeyboardInput(state, code, Some(key));
Some(window_event)
} else {
None
}
}
let mut events = std::collections::VecDeque::new();
if let Some(window_event) = modifier_event(ns_event,
appkit::NSShiftKeyMask,
events::VirtualKeyCode::LShift,
modifiers.shift_pressed)
{
modifiers.shift_pressed = !modifiers.shift_pressed;
events.push_back(into_event(window_event));
}
if let Some(window_event) = modifier_event(ns_event,
appkit::NSControlKeyMask,
events::VirtualKeyCode::LControl,
modifiers.ctrl_pressed)
{
modifiers.ctrl_pressed = !modifiers.ctrl_pressed;
events.push_back(into_event(window_event));
}
if let Some(window_event) = modifier_event(ns_event,
appkit::NSCommandKeyMask,
events::VirtualKeyCode::LWin,
modifiers.win_pressed)
{
modifiers.win_pressed = !modifiers.win_pressed;
events.push_back(into_event(window_event));
}
if let Some(window_event) = modifier_event(ns_event,
appkit::NSAlternateKeyMask,
events::VirtualKeyCode::LAlt,
modifiers.alt_pressed)
{
modifiers.alt_pressed = !modifiers.alt_pressed;
events.push_back(into_event(window_event));
}
let event = events.pop_front();
self.pending_events.lock().unwrap().extend(events.into_iter());
event
},
appkit::NSLeftMouseDown => { Some(into_event(WindowEvent::MouseInput(ElementState::Pressed, MouseButton::Left))) },
appkit::NSLeftMouseUp => { Some(into_event(WindowEvent::MouseInput(ElementState::Released, MouseButton::Left))) },
appkit::NSRightMouseDown => { Some(into_event(WindowEvent::MouseInput(ElementState::Pressed, MouseButton::Right))) },
appkit::NSRightMouseUp => { Some(into_event(WindowEvent::MouseInput(ElementState::Released, MouseButton::Right))) },
appkit::NSOtherMouseDown => { Some(into_event(WindowEvent::MouseInput(ElementState::Pressed, MouseButton::Middle))) },
appkit::NSOtherMouseUp => { Some(into_event(WindowEvent::MouseInput(ElementState::Released, MouseButton::Middle))) },
appkit::NSMouseEntered => { Some(into_event(WindowEvent::MouseEntered)) },
appkit::NSMouseExited => { Some(into_event(WindowEvent::MouseLeft)) },
appkit::NSMouseMoved |
appkit::NSLeftMouseDragged |
appkit::NSOtherMouseDragged |
appkit::NSRightMouseDragged => {
// If the mouse movement was on one of our windows, use it.
// Otherwise, if one of our windows is the key window (receiving input), use it.
// Otherwise, return `None`.
let window = match maybe_window.or_else(maybe_key_window) {
Some(window) => window,
None => return None,
};
let window_point = ns_event.locationInWindow();
let view_point = if ns_window == cocoa::base::nil {
let ns_size = foundation::NSSize::new(0.0, 0.0);
let ns_rect = foundation::NSRect::new(window_point, ns_size);
let window_rect = window.window.convertRectFromScreen_(ns_rect);
window.view.convertPoint_fromView_(window_rect.origin, cocoa::base::nil)
} else {
window.view.convertPoint_fromView_(window_point, cocoa::base::nil)
};
let view_rect = NSView::frame(*window.view);
let scale_factor = window.hidpi_factor();
let x = (scale_factor * view_point.x as f32) as i32;
let y = (scale_factor * (view_rect.size.height - view_point.y) as f32) as i32;
let window_event = WindowEvent::MouseMoved(x, y);
let event = Event::WindowEvent { window_id: ::WindowId(window.id()), event: window_event };
Some(event)
},
appkit::NSScrollWheel => {
// If none of the windows received the scroll, return `None`.
let window = match maybe_window {
Some(window) => window,
None => return None,
};
use events::MouseScrollDelta::{LineDelta, PixelDelta};
let scale_factor = window.hidpi_factor();
let delta = if ns_event.hasPreciseScrollingDeltas() == cocoa::base::YES {
PixelDelta(scale_factor * ns_event.scrollingDeltaX() as f32,
scale_factor * ns_event.scrollingDeltaY() as f32)
} else {
LineDelta(scale_factor * ns_event.scrollingDeltaX() as f32,
scale_factor * ns_event.scrollingDeltaY() as f32)
};
let phase = match ns_event.phase() {
appkit::NSEventPhaseMayBegin | appkit::NSEventPhaseBegan => TouchPhase::Started,
appkit::NSEventPhaseEnded => TouchPhase::Ended,
_ => TouchPhase::Moved,
};
let window_event = WindowEvent::MouseWheel(delta, phase);
Some(into_event(window_event))
},
appkit::NSEventTypePressure => {
let pressure = ns_event.pressure();
let stage = ns_event.stage();
let window_event = WindowEvent::TouchpadPressure(pressure, stage);
Some(into_event(window_event))
},
appkit::NSApplicationDefined => match ns_event.subtype() {
appkit::NSEventSubtype::NSApplicationActivatedEventType => {
Some(into_event(WindowEvent::Awakened))
},
_ => None,
},
_ => None,
}
}
}
fn to_virtual_key_code(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,
})
}

852
src/platform/macos/mod.rs
View file

@ -1,849 +1,37 @@
#![cfg(target_os = "macos")] #![cfg(target_os = "macos")]
use {CreationError, WindowEvent as Event, MouseCursor, CursorState}; pub use self::events_loop::EventsLoop;
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, NSColor, 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};
gen_api_transition!();
pub use self::monitor::{MonitorId, get_available_monitors, get_primary_monitor}; pub use self::monitor::{MonitorId, get_available_monitors, get_primary_monitor};
pub use self::window::{Id as WindowId, PlatformSpecificWindowBuilderAttributes, Window};
mod monitor; use {CreationError};
mod event;
static mut SHIFT_PRESSED: bool = false; pub struct Window2 {
static mut CTRL_PRESSED: bool = false; pub window: ::std::sync::Arc<Window>,
static mut WIN_PRESSED: bool = false;
static mut ALT_PRESSED: bool = false;
struct DelegateState {
view: IdRef,
window: IdRef,
resize_handler: Option<fn(u32, u32)>,
pending_resize: Mutex<Option<(u32, u32)>>,
/// Events that have been retreived with XLib but not dispatched with iterators yet
pending_events: Mutex<VecDeque<Event>>,
} }
struct WindowDelegate { impl ::std::ops::Deref for Window2 {
state: Box<DelegateState>, type Target = Window;
_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];
let rect = NSView::frame(*state.view);
let scale_factor = NSWindow::backingScaleFactor(*state.window) as f32;
let width = (scale_factor * rect.size.width as f32) as u32;
let height = (scale_factor * rect.size.height as f32) as u32;
if let Some(handler) = state.resize_handler {
(handler)(width, height);
}
*state.pending_resize.lock().unwrap() = Some((width, height));
}
}
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] #[inline]
fn get_nswindow(&self) -> *mut c_void { fn deref(&self) -> &Window {
*self.window as *mut c_void &*self.window
}
#[inline]
fn get_nsview(&self) -> *mut c_void {
*self.view as *mut c_void
} }
} }
#[derive(Clone)] impl Window2 {
pub struct WindowProxy;
impl WindowProxy { pub fn new(events_loop: ::std::sync::Arc<EventsLoop>,
pub fn wakeup_event_loop(&self) { attributes: &::WindowAttributes,
unsafe { pl_attribs: &PlatformSpecificWindowBuilderAttributes) -> Result<Self, CreationError>
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((width, height)) = self.window.delegate.state.pending_resize.lock().unwrap().take() {
return Some(Event::Resized(width, height));
}
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((width, height)) = self.window.delegate.state.pending_resize.lock().unwrap().take() {
return Some(Event::Resized(width, height));
}
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>
{ {
// let app = match Window::create_app() { let weak_events_loop = ::std::sync::Arc::downgrade(&events_loop);
let app = match Window::create_app(pl_attribs.activation_policy) { let window = ::std::sync::Arc::new(try!(Window::new(weak_events_loop, attributes, pl_attribs)));
Some(app) => app, events_loop.windows.lock().unwrap().push(window.clone());
None => { return Err(OsError(format!("Couldn't create NSApplication"))); }, Ok(Window2 { window: window })
};
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 {
(*window as id).setOpaque_(NO);
(*window as id).setBackgroundColor_(NSColor::clearColor(nil));
}
app.activateIgnoringOtherApps_(YES);
if win_attribs.visible {
window.makeKeyAndOrderFront_(nil);
} else {
window.makeKeyWindow();
}
if let Some((width, height)) = win_attribs.min_dimensions {
nswindow_set_min_dimensions(window.0, width.into(), height.into());
}
if let Some((width, height)) = win_attribs.max_dimensions {
nswindow_set_max_dimensions(window.0, width.into(), height.into());
}
}
let ds = DelegateState {
view: view.clone(),
window: window.clone(),
resize_handler: None,
pending_resize: Mutex::new(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(())
}
} }
unsafe fn nswindow_set_min_dimensions<V: NSWindow + Copy>( mod events_loop;
window: V, min_width: f64, min_height: f64) mod monitor;
{ mod window;
window.setMinSize_(NSSize {
width: min_width,
height: min_height,
});
// If necessary, resize the window to match constraint
let mut current_rect = NSWindow::frame(window);
if current_rect.size.width < min_width {
current_rect.size.width = min_width;
window.setFrame_display_(current_rect, 0)
}
if current_rect.size.height < min_height {
// The origin point of a rectangle is at its bottom left in Cocoa. To
// ensure the window's top-left point remains the same:
current_rect.origin.y +=
current_rect.size.height - min_height;
current_rect.size.height = min_height;
window.setFrame_display_(current_rect, 0)
}
}
unsafe fn nswindow_set_max_dimensions<V: NSWindow + Copy>(
window: V, max_width: f64, max_height: f64)
{
window.setMaxSize_(NSSize {
width: max_width,
height: max_height,
});
// If necessary, resize the window to match constraint
let mut current_rect = NSWindow::frame(window);
if current_rect.size.width > max_width {
current_rect.size.width = max_width;
window.setFrame_display_(current_rect, 0)
}
if current_rect.size.height > max_height {
// The origin point of a rectangle is at its bottom left in
// Cocoa. To ensure the window's top-left point remains the
// same:
current_rect.origin.y +=
current_rect.size.height - max_height;
current_rect.size.height = max_height;
window.setFrame_display_(current_rect, 0)
}
}
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::NSOtherMouseDown => { Some(Event::MouseInput(ElementState::Pressed, MouseButton::Middle)) },
appkit::NSOtherMouseUp => { Some(Event::MouseInput(ElementState::Released, MouseButton::Middle)) },
appkit::NSMouseEntered => { Some(Event::MouseEntered) },
appkit::NSMouseExited => { Some(Event::MouseLeft) },
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()))
},
appkit::NSApplicationDefined => {
match nsevent.subtype() {
appkit::NSEventSubtype::NSApplicationActivatedEventType => { Some(Event::Awakened) }
_ => { None }
}
},
_ => { None },
}
}

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use {CreationError, Event, WindowEvent, WindowId, MouseCursor, CursorState};
use CreationError::OsError;
use libc;
use WindowAttributes;
use native_monitor::NativeMonitorId;
use os::macos::ActivationPolicy;
use objc;
use objc::runtime::{Class, Object, Sel, BOOL, YES, NO};
use objc::declare::ClassDecl;
use cocoa;
use cocoa::base::{id, nil};
use cocoa::foundation::{NSPoint, NSRect, NSSize, NSString, NSUInteger};
use cocoa::appkit::{self, NSApplication, NSColor, NSView, NSWindow};
use core_graphics::display::{CGAssociateMouseAndMouseCursorPosition, CGMainDisplayID, CGDisplayPixelsHigh, CGWarpMouseCursorPosition};
use std;
use std::ops::Deref;
use std::os::raw::c_void;
use os::macos::WindowExt;
#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Id(pub usize);
struct DelegateState {
view: IdRef,
window: IdRef,
events_loop: std::sync::Weak<super::EventsLoop>,
}
pub 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;
// Emits an event via the `EventsLoop`'s callback.
//
// The `Eventloop`'s callback should always be `Some` while the `WindowDelegate`'s methods
// are called as the delegate methods should only be called during a call to
// `nextEventMatchingMask` (called via EventsLoop::poll_events and
// EventsLoop::run_forever).
unsafe fn emit_event(state: &mut DelegateState, window_event: WindowEvent) {
let window_id = get_window_id(*state.window);
let event = Event::WindowEvent {
window_id: WindowId(window_id),
event: window_event,
};
if let Some(events_loop) = state.events_loop.upgrade() {
events_loop.user_callback.call_with_event(event);
}
}
extern fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
unsafe {
let state: *mut c_void = *this.get_ivar("winitState");
let state = &mut *(state as *mut DelegateState);
emit_event(state, WindowEvent::Closed);
}
YES
}
extern fn window_did_resize(this: &Object, _: Sel, _: id) {
unsafe {
let state: *mut c_void = *this.get_ivar("winitState");
let state = &mut *(state as *mut DelegateState);
let rect = NSView::frame(*state.view);
let scale_factor = NSWindow::backingScaleFactor(*state.window) as f32;
let width = (scale_factor * rect.size.width as f32) as u32;
let height = (scale_factor * rect.size.height as f32) as u32;
emit_event(state, WindowEvent::Resized(width, height));
}
}
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("winitState");
let state = &mut *(state as *mut DelegateState);
emit_event(state, WindowEvent::Focused(true));
}
}
extern fn window_did_resign_key(this: &Object, _: Sel, _: id) {
unsafe {
let state: *mut c_void = *this.get_ivar("winitState");
let state = &mut *(state as *mut DelegateState);
emit_event(state, WindowEvent::Focused(false));
}
}
static mut DELEGATE_CLASS: *const Class = 0 as *const Class;
static INIT: std::sync::Once = std::sync::ONCE_INIT;
INIT.call_once(|| unsafe {
// Create new NSWindowDelegate
let superclass = Class::get("NSObject").unwrap();
let mut decl = ClassDecl::new("WinitWindowDelegate", 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>("winitState");
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("winitState", 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 {
pub view: IdRef,
pub window: IdRef,
pub delegate: WindowDelegate,
}
unsafe impl Send for Window {}
unsafe impl Sync for Window {}
impl Drop for Window {
fn drop(&mut self) {
// Remove this window from the `EventLoop`s list of windows.
let id = self.id();
if let Some(ev) = self.delegate.state.events_loop.upgrade() {
let mut windows = ev.windows.lock().unwrap();
windows.retain(|w| w.id() != id)
}
}
}
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
}
}
impl Window {
pub fn new(events_loop: std::sync::Weak<super::EventsLoop>,
win_attribs: &WindowAttributes,
pl_attribs: &PlatformSpecificWindowBuilderAttributes)
-> Result<Window, CreationError>
{
unsafe {
if !msg_send![cocoa::base::class("NSThread"), isMainThread] {
panic!("Windows can only be created on the main thread on macOS");
}
}
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 {
(*window as id).setOpaque_(NO);
(*window as id).setBackgroundColor_(NSColor::clearColor(nil));
}
app.activateIgnoringOtherApps_(YES);
if win_attribs.visible {
window.makeKeyAndOrderFront_(nil);
} else {
window.makeKeyWindow();
}
if let Some((width, height)) = win_attribs.min_dimensions {
nswindow_set_min_dimensions(window.0, width.into(), height.into());
}
if let Some((width, height)) = win_attribs.max_dimensions {
nswindow_set_max_dimensions(window.0, width.into(), height.into());
}
}
let ds = DelegateState {
view: view.clone(),
window: window.clone(),
events_loop: events_loop,
};
let window = Window {
view: view,
window: window,
delegate: WindowDelegate::new(ds),
};
Ok(window)
}
pub fn id(&self) -> Id {
get_window_id(*self.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 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
}
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(())
}
}
// Convert the `cocoa::base::id` associated with a window to a usize to use as a unique identifier
// for the window.
pub fn get_window_id(window_cocoa_id: cocoa::base::id) -> Id {
Id(window_cocoa_id as *const objc::runtime::Object as usize)
}
unsafe fn nswindow_set_min_dimensions<V: NSWindow + Copy>(
window: V, min_width: f64, min_height: f64)
{
window.setMinSize_(NSSize {
width: min_width,
height: min_height,
});
// If necessary, resize the window to match constraint
let mut current_rect = NSWindow::frame(window);
if current_rect.size.width < min_width {
current_rect.size.width = min_width;
window.setFrame_display_(current_rect, 0)
}
if current_rect.size.height < min_height {
// The origin point of a rectangle is at its bottom left in Cocoa. To
// ensure the window's top-left point remains the same:
current_rect.origin.y +=
current_rect.size.height - min_height;
current_rect.size.height = min_height;
window.setFrame_display_(current_rect, 0)
}
}
unsafe fn nswindow_set_max_dimensions<V: NSWindow + Copy>(
window: V, max_width: f64, max_height: f64)
{
window.setMaxSize_(NSSize {
width: max_width,
height: max_height,
});
// If necessary, resize the window to match constraint
let mut current_rect = NSWindow::frame(window);
if current_rect.size.width > max_width {
current_rect.size.width = max_width;
window.setFrame_display_(current_rect, 0)
}
if current_rect.size.height > max_height {
// The origin point of a rectangle is at its bottom left in
// Cocoa. To ensure the window's top-left point remains the
// same:
current_rect.origin.y +=
current_rect.size.height - max_height;
current_rect.size.height = max_height;
window.setFrame_display_(current_rect, 0)
}
}
pub 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)
}
}

1
src/window.rs
View file

@ -2,7 +2,6 @@ use std::collections::vec_deque::IntoIter as VecDequeIter;
use CreationError; use CreationError;
use CursorState; use CursorState;
use WindowEvent as Event;
use EventsLoop; use EventsLoop;
use MouseCursor; use MouseCursor;
use Window; use Window;

11
tests/events_loop.rs Normal file
View file

@ -0,0 +1,11 @@
extern crate winit;
// A part of the API requirement for `EventsLoop` is that it is `Send` + `Sync`.
//
// This short test will only compile if the `EventsLoop` is `Send` + `Sync`.
#[test]
fn send_sync() {
fn check_send_sync<T: Send + Sync>(_: T) {}
let events_loop = winit::EventsLoop::new();
check_send_sync(events_loop);
}