winit/src/platform_impl/android/mod.rs

881 lines
34 KiB
Rust

#![cfg(target_os = "android")]
use crate::{
dpi::{PhysicalPosition, PhysicalSize, Position, Size},
error,
event::{self, VirtualKeyCode},
event_loop::{self, ControlFlow},
monitor, window,
};
use ndk::{
configuration::Configuration,
event::{InputEvent, KeyAction, Keycode, MotionAction},
looper::{ForeignLooper, Poll, ThreadLooper},
};
use ndk_glue::{Event, Rect};
use raw_window_handle::{AndroidNdkHandle, RawWindowHandle};
use std::{
collections::VecDeque,
sync::{Arc, Mutex, RwLock},
time::{Duration, Instant},
};
lazy_static! {
static ref CONFIG: RwLock<Configuration> = RwLock::new(Configuration::from_asset_manager(
#[allow(deprecated)] // TODO: rust-windowing/winit#2196
&ndk_glue::native_activity().asset_manager()
));
// If this is `Some()` a `Poll::Wake` is considered an `EventSource::Internal` with the event
// contained in the `Option`. The event is moved outside of the `Option` replacing it with a
// `None`.
//
// This allows us to inject event into the event loop without going through `ndk-glue` and
// calling unsafe function that should only be called by Android.
static ref INTERNAL_EVENT: RwLock<Option<InternalEvent>> = RwLock::new(None);
}
enum InternalEvent {
RedrawRequested,
}
enum EventSource {
Callback,
InputQueue,
User,
Internal(InternalEvent),
}
fn ndk_keycode_to_virtualkeycode(keycode: Keycode) -> Option<event::VirtualKeyCode> {
match keycode {
Keycode::A => Some(VirtualKeyCode::A),
Keycode::B => Some(VirtualKeyCode::B),
Keycode::C => Some(VirtualKeyCode::C),
Keycode::D => Some(VirtualKeyCode::D),
Keycode::E => Some(VirtualKeyCode::E),
Keycode::F => Some(VirtualKeyCode::F),
Keycode::G => Some(VirtualKeyCode::G),
Keycode::H => Some(VirtualKeyCode::H),
Keycode::I => Some(VirtualKeyCode::I),
Keycode::J => Some(VirtualKeyCode::J),
Keycode::K => Some(VirtualKeyCode::K),
Keycode::L => Some(VirtualKeyCode::L),
Keycode::M => Some(VirtualKeyCode::M),
Keycode::N => Some(VirtualKeyCode::N),
Keycode::O => Some(VirtualKeyCode::O),
Keycode::P => Some(VirtualKeyCode::P),
Keycode::Q => Some(VirtualKeyCode::Q),
Keycode::R => Some(VirtualKeyCode::R),
Keycode::S => Some(VirtualKeyCode::S),
Keycode::T => Some(VirtualKeyCode::T),
Keycode::U => Some(VirtualKeyCode::U),
Keycode::V => Some(VirtualKeyCode::V),
Keycode::W => Some(VirtualKeyCode::W),
Keycode::X => Some(VirtualKeyCode::X),
Keycode::Y => Some(VirtualKeyCode::Y),
Keycode::Z => Some(VirtualKeyCode::Z),
Keycode::Keycode0 => Some(VirtualKeyCode::Key0),
Keycode::Keycode1 => Some(VirtualKeyCode::Key1),
Keycode::Keycode2 => Some(VirtualKeyCode::Key2),
Keycode::Keycode3 => Some(VirtualKeyCode::Key3),
Keycode::Keycode4 => Some(VirtualKeyCode::Key4),
Keycode::Keycode5 => Some(VirtualKeyCode::Key5),
Keycode::Keycode6 => Some(VirtualKeyCode::Key6),
Keycode::Keycode7 => Some(VirtualKeyCode::Key7),
Keycode::Keycode8 => Some(VirtualKeyCode::Key8),
Keycode::Keycode9 => Some(VirtualKeyCode::Key9),
Keycode::Numpad0 => Some(VirtualKeyCode::Numpad0),
Keycode::Numpad1 => Some(VirtualKeyCode::Numpad1),
Keycode::Numpad2 => Some(VirtualKeyCode::Numpad2),
Keycode::Numpad3 => Some(VirtualKeyCode::Numpad3),
Keycode::Numpad4 => Some(VirtualKeyCode::Numpad4),
Keycode::Numpad5 => Some(VirtualKeyCode::Numpad5),
Keycode::Numpad6 => Some(VirtualKeyCode::Numpad6),
Keycode::Numpad7 => Some(VirtualKeyCode::Numpad7),
Keycode::Numpad8 => Some(VirtualKeyCode::Numpad8),
Keycode::Numpad9 => Some(VirtualKeyCode::Numpad9),
Keycode::NumpadAdd => Some(VirtualKeyCode::NumpadAdd),
Keycode::NumpadSubtract => Some(VirtualKeyCode::NumpadSubtract),
Keycode::NumpadMultiply => Some(VirtualKeyCode::NumpadMultiply),
Keycode::NumpadDivide => Some(VirtualKeyCode::NumpadDivide),
Keycode::NumpadEnter => Some(VirtualKeyCode::NumpadEnter),
Keycode::NumpadEquals => Some(VirtualKeyCode::NumpadEquals),
Keycode::NumpadComma => Some(VirtualKeyCode::NumpadComma),
Keycode::NumpadDot => Some(VirtualKeyCode::NumpadDecimal),
Keycode::NumLock => Some(VirtualKeyCode::Numlock),
Keycode::DpadLeft => Some(VirtualKeyCode::Left),
Keycode::DpadRight => Some(VirtualKeyCode::Right),
Keycode::DpadUp => Some(VirtualKeyCode::Up),
Keycode::DpadDown => Some(VirtualKeyCode::Down),
Keycode::F1 => Some(VirtualKeyCode::F1),
Keycode::F2 => Some(VirtualKeyCode::F2),
Keycode::F3 => Some(VirtualKeyCode::F3),
Keycode::F4 => Some(VirtualKeyCode::F4),
Keycode::F5 => Some(VirtualKeyCode::F5),
Keycode::F6 => Some(VirtualKeyCode::F6),
Keycode::F7 => Some(VirtualKeyCode::F7),
Keycode::F8 => Some(VirtualKeyCode::F8),
Keycode::F9 => Some(VirtualKeyCode::F9),
Keycode::F10 => Some(VirtualKeyCode::F10),
Keycode::F11 => Some(VirtualKeyCode::F11),
Keycode::F12 => Some(VirtualKeyCode::F12),
Keycode::Space => Some(VirtualKeyCode::Space),
Keycode::Escape => Some(VirtualKeyCode::Escape),
Keycode::Enter => Some(VirtualKeyCode::Return), // not on the Numpad
Keycode::Tab => Some(VirtualKeyCode::Tab),
Keycode::PageUp => Some(VirtualKeyCode::PageUp),
Keycode::PageDown => Some(VirtualKeyCode::PageDown),
Keycode::MoveHome => Some(VirtualKeyCode::Home),
Keycode::MoveEnd => Some(VirtualKeyCode::End),
Keycode::Insert => Some(VirtualKeyCode::Insert),
Keycode::Del => Some(VirtualKeyCode::Back), // Backspace (above Enter)
Keycode::ForwardDel => Some(VirtualKeyCode::Delete), // Delete (below Insert)
Keycode::Copy => Some(VirtualKeyCode::Copy),
Keycode::Paste => Some(VirtualKeyCode::Paste),
Keycode::Cut => Some(VirtualKeyCode::Cut),
Keycode::VolumeUp => Some(VirtualKeyCode::VolumeUp),
Keycode::VolumeDown => Some(VirtualKeyCode::VolumeDown),
Keycode::VolumeMute => Some(VirtualKeyCode::Mute), // ???
Keycode::Mute => Some(VirtualKeyCode::Mute), // ???
Keycode::MediaPlayPause => Some(VirtualKeyCode::PlayPause),
Keycode::MediaStop => Some(VirtualKeyCode::MediaStop), // ??? simple "Stop"?
Keycode::MediaNext => Some(VirtualKeyCode::NextTrack),
Keycode::MediaPrevious => Some(VirtualKeyCode::PrevTrack),
Keycode::Plus => Some(VirtualKeyCode::Plus),
Keycode::Minus => Some(VirtualKeyCode::Minus),
Keycode::Equals => Some(VirtualKeyCode::Equals),
Keycode::Semicolon => Some(VirtualKeyCode::Semicolon),
Keycode::Slash => Some(VirtualKeyCode::Slash),
Keycode::Backslash => Some(VirtualKeyCode::Backslash),
Keycode::Comma => Some(VirtualKeyCode::Comma),
Keycode::Period => Some(VirtualKeyCode::Period),
Keycode::Apostrophe => Some(VirtualKeyCode::Apostrophe),
Keycode::Grave => Some(VirtualKeyCode::Grave),
Keycode::At => Some(VirtualKeyCode::At),
// TODO: Maybe mapping this to Snapshot makes more sense? See: "PrtScr/SysRq"
Keycode::Sysrq => Some(VirtualKeyCode::Sysrq),
// These are usually the same (Pause/Break)
Keycode::Break => Some(VirtualKeyCode::Pause),
// These are exactly the same
Keycode::ScrollLock => Some(VirtualKeyCode::Scroll),
Keycode::Yen => Some(VirtualKeyCode::Yen),
Keycode::Kana => Some(VirtualKeyCode::Kana),
Keycode::CtrlLeft => Some(VirtualKeyCode::LControl),
Keycode::CtrlRight => Some(VirtualKeyCode::RControl),
Keycode::ShiftLeft => Some(VirtualKeyCode::LShift),
Keycode::ShiftRight => Some(VirtualKeyCode::RShift),
Keycode::AltLeft => Some(VirtualKeyCode::LAlt),
Keycode::AltRight => Some(VirtualKeyCode::RAlt),
// Different names for the same keys
Keycode::MetaLeft => Some(VirtualKeyCode::LWin),
Keycode::MetaRight => Some(VirtualKeyCode::RWin),
Keycode::LeftBracket => Some(VirtualKeyCode::LBracket),
Keycode::RightBracket => Some(VirtualKeyCode::RBracket),
Keycode::Power => Some(VirtualKeyCode::Power),
Keycode::Sleep => Some(VirtualKeyCode::Sleep), // what about SoftSleep?
Keycode::Wakeup => Some(VirtualKeyCode::Wake),
Keycode::NavigateNext => Some(VirtualKeyCode::NavigateForward),
Keycode::NavigatePrevious => Some(VirtualKeyCode::NavigateBackward),
Keycode::Calculator => Some(VirtualKeyCode::Calculator),
Keycode::Explorer => Some(VirtualKeyCode::MyComputer), // "close enough"
Keycode::Envelope => Some(VirtualKeyCode::Mail), // "close enough"
Keycode::Star => Some(VirtualKeyCode::Asterisk), // ???
Keycode::AllApps => Some(VirtualKeyCode::Apps), // ???
Keycode::AppSwitch => Some(VirtualKeyCode::Apps), // ???
Keycode::Refresh => Some(VirtualKeyCode::WebRefresh), // ???
_ => None,
}
}
fn poll(poll: Poll) -> Option<EventSource> {
match poll {
Poll::Event { ident, .. } => match ident {
ndk_glue::NDK_GLUE_LOOPER_EVENT_PIPE_IDENT => Some(EventSource::Callback),
ndk_glue::NDK_GLUE_LOOPER_INPUT_QUEUE_IDENT => Some(EventSource::InputQueue),
_ => unreachable!(),
},
Poll::Timeout => None,
Poll::Wake => Some(
INTERNAL_EVENT
.write()
.unwrap()
.take()
.map_or(EventSource::User, EventSource::Internal),
),
Poll::Callback => unreachable!(),
}
}
pub struct EventLoop<T: 'static> {
window_target: event_loop::EventLoopWindowTarget<T>,
user_queue: Arc<Mutex<VecDeque<T>>>,
first_event: Option<EventSource>,
start_cause: event::StartCause,
looper: ThreadLooper,
running: bool,
}
#[derive(Default, Debug, Copy, Clone, PartialEq, Hash)]
pub(crate) struct PlatformSpecificEventLoopAttributes {}
macro_rules! call_event_handler {
( $event_handler:expr, $window_target:expr, $cf:expr, $event:expr ) => {{
if let ControlFlow::ExitWithCode(code) = $cf {
$event_handler($event, $window_target, &mut ControlFlow::ExitWithCode(code));
} else {
$event_handler($event, $window_target, &mut $cf);
}
}};
}
impl<T: 'static> EventLoop<T> {
pub(crate) fn new(_: &PlatformSpecificEventLoopAttributes) -> Self {
Self {
window_target: event_loop::EventLoopWindowTarget {
p: EventLoopWindowTarget {
_marker: std::marker::PhantomData,
},
_marker: std::marker::PhantomData,
},
user_queue: Default::default(),
first_event: None,
start_cause: event::StartCause::Init,
looper: ThreadLooper::for_thread().unwrap(),
running: false,
}
}
pub fn run<F>(mut self, event_handler: F) -> !
where
F: 'static
+ FnMut(event::Event<'_, T>, &event_loop::EventLoopWindowTarget<T>, &mut ControlFlow),
{
let exit_code = self.run_return(event_handler);
::std::process::exit(exit_code);
}
pub fn run_return<F>(&mut self, mut event_handler: F) -> i32
where
F: FnMut(event::Event<'_, T>, &event_loop::EventLoopWindowTarget<T>, &mut ControlFlow),
{
let mut control_flow = ControlFlow::default();
'event_loop: loop {
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::NewEvents(self.start_cause)
);
let mut redraw = false;
let mut resized = false;
match self.first_event.take() {
Some(EventSource::Callback) => match ndk_glue::poll_events().unwrap() {
Event::WindowCreated => {
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::Resumed
);
}
Event::WindowResized => resized = true,
Event::WindowRedrawNeeded => redraw = true,
Event::WindowDestroyed => {
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::Suspended
);
}
Event::Pause => self.running = false,
Event::Resume => self.running = true,
Event::ConfigChanged => {
#[allow(deprecated)] // TODO: rust-windowing/winit#2196
let am = ndk_glue::native_activity().asset_manager();
let config = Configuration::from_asset_manager(&am);
let old_scale_factor = MonitorHandle.scale_factor();
*CONFIG.write().unwrap() = config;
let scale_factor = MonitorHandle.scale_factor();
if (scale_factor - old_scale_factor).abs() < f64::EPSILON {
let mut size = MonitorHandle.size();
let event = event::Event::WindowEvent {
window_id: window::WindowId(WindowId),
event: event::WindowEvent::ScaleFactorChanged {
new_inner_size: &mut size,
scale_factor,
},
};
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event
);
}
}
Event::WindowHasFocus => {
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::WindowEvent {
window_id: window::WindowId(WindowId),
event: event::WindowEvent::Focused(true),
}
);
}
Event::WindowLostFocus => {
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::WindowEvent {
window_id: window::WindowId(WindowId),
event: event::WindowEvent::Focused(false),
}
);
}
_ => {}
},
Some(EventSource::InputQueue) => {
if let Some(input_queue) = ndk_glue::input_queue().as_ref() {
while let Some(event) = input_queue.get_event() {
if let Some(event) = input_queue.pre_dispatch(event) {
let mut handled = true;
let window_id = window::WindowId(WindowId);
let device_id = event::DeviceId(DeviceId);
match &event {
InputEvent::MotionEvent(motion_event) => {
let phase = match motion_event.action() {
MotionAction::Down | MotionAction::PointerDown => {
Some(event::TouchPhase::Started)
}
MotionAction::Up | MotionAction::PointerUp => {
Some(event::TouchPhase::Ended)
}
MotionAction::Move => Some(event::TouchPhase::Moved),
MotionAction::Cancel => {
Some(event::TouchPhase::Cancelled)
}
_ => {
handled = false;
None // TODO mouse events
}
};
if let Some(phase) = phase {
let pointers: Box<
dyn Iterator<Item = ndk::event::Pointer<'_>>,
> = match phase {
event::TouchPhase::Started
| event::TouchPhase::Ended => Box::new(
std::iter::once(motion_event.pointer_at_index(
motion_event.pointer_index(),
)),
),
event::TouchPhase::Moved
| event::TouchPhase::Cancelled => {
Box::new(motion_event.pointers())
}
};
for pointer in pointers {
let location = PhysicalPosition {
x: pointer.x() as _,
y: pointer.y() as _,
};
let event = event::Event::WindowEvent {
window_id,
event: event::WindowEvent::Touch(
event::Touch {
device_id,
phase,
location,
id: pointer.pointer_id() as u64,
force: None,
},
),
};
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event
);
}
}
}
InputEvent::KeyEvent(key) => {
let state = match key.action() {
KeyAction::Down => event::ElementState::Pressed,
KeyAction::Up => event::ElementState::Released,
_ => event::ElementState::Released,
};
#[allow(deprecated)]
let event = event::Event::WindowEvent {
window_id,
event: event::WindowEvent::KeyboardInput {
device_id,
input: event::KeyboardInput {
scancode: key.scan_code() as u32,
state,
virtual_keycode: ndk_keycode_to_virtualkeycode(
key.key_code(),
),
modifiers: event::ModifiersState::default(),
},
is_synthetic: false,
},
};
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event
);
}
};
input_queue.finish_event(event, handled);
}
}
}
}
Some(EventSource::User) => {
let mut user_queue = self.user_queue.lock().unwrap();
while let Some(event) = user_queue.pop_front() {
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::UserEvent(event)
);
}
}
Some(EventSource::Internal(internal)) => match internal {
InternalEvent::RedrawRequested => redraw = true,
},
None => {}
}
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::MainEventsCleared
);
if resized && self.running {
let size = MonitorHandle.size();
let event = event::Event::WindowEvent {
window_id: window::WindowId(WindowId),
event: event::WindowEvent::Resized(size),
};
call_event_handler!(event_handler, self.window_target(), control_flow, event);
}
if redraw && self.running {
let event = event::Event::RedrawRequested(window::WindowId(WindowId));
call_event_handler!(event_handler, self.window_target(), control_flow, event);
}
call_event_handler!(
event_handler,
self.window_target(),
control_flow,
event::Event::RedrawEventsCleared
);
match control_flow {
ControlFlow::ExitWithCode(code) => {
self.first_event = poll(
self.looper
.poll_once_timeout(Duration::from_millis(0))
.unwrap(),
);
self.start_cause = event::StartCause::WaitCancelled {
start: Instant::now(),
requested_resume: None,
};
break 'event_loop code;
}
ControlFlow::Poll => {
self.first_event = poll(
self.looper
.poll_all_timeout(Duration::from_millis(0))
.unwrap(),
);
self.start_cause = event::StartCause::Poll;
}
ControlFlow::Wait => {
self.first_event = poll(self.looper.poll_all().unwrap());
self.start_cause = event::StartCause::WaitCancelled {
start: Instant::now(),
requested_resume: None,
}
}
ControlFlow::WaitUntil(instant) => {
let start = Instant::now();
let duration = if instant <= start {
Duration::default()
} else {
instant - start
};
self.first_event = poll(self.looper.poll_all_timeout(duration).unwrap());
self.start_cause = if self.first_event.is_some() {
event::StartCause::WaitCancelled {
start,
requested_resume: Some(instant),
}
} else {
event::StartCause::ResumeTimeReached {
start,
requested_resume: instant,
}
}
}
}
}
}
pub fn window_target(&self) -> &event_loop::EventLoopWindowTarget<T> {
&self.window_target
}
pub fn create_proxy(&self) -> EventLoopProxy<T> {
EventLoopProxy {
queue: self.user_queue.clone(),
looper: ForeignLooper::for_thread().expect("called from event loop thread"),
}
}
}
pub struct EventLoopProxy<T: 'static> {
queue: Arc<Mutex<VecDeque<T>>>,
looper: ForeignLooper,
}
impl<T> EventLoopProxy<T> {
pub fn send_event(&self, event: T) -> Result<(), event_loop::EventLoopClosed<T>> {
self.queue.lock().unwrap().push_back(event);
self.looper.wake();
Ok(())
}
}
impl<T> Clone for EventLoopProxy<T> {
fn clone(&self) -> Self {
EventLoopProxy {
queue: self.queue.clone(),
looper: self.looper.clone(),
}
}
}
pub struct EventLoopWindowTarget<T: 'static> {
_marker: std::marker::PhantomData<T>,
}
impl<T: 'static> EventLoopWindowTarget<T> {
pub fn primary_monitor(&self) -> Option<monitor::MonitorHandle> {
Some(monitor::MonitorHandle {
inner: MonitorHandle,
})
}
pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
let mut v = VecDeque::with_capacity(1);
v.push_back(MonitorHandle);
v
}
}
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct WindowId;
impl WindowId {
pub const fn dummy() -> Self {
WindowId
}
}
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct DeviceId;
impl DeviceId {
pub const fn dummy() -> Self {
DeviceId
}
}
#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
pub struct PlatformSpecificWindowBuilderAttributes;
pub struct Window;
impl Window {
pub fn new<T: 'static>(
_el: &EventLoopWindowTarget<T>,
_window_attrs: window::WindowAttributes,
_: PlatformSpecificWindowBuilderAttributes,
) -> Result<Self, error::OsError> {
// FIXME this ignores requested window attributes
Ok(Self)
}
pub fn id(&self) -> WindowId {
WindowId
}
pub fn primary_monitor(&self) -> Option<monitor::MonitorHandle> {
Some(monitor::MonitorHandle {
inner: MonitorHandle,
})
}
pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
let mut v = VecDeque::with_capacity(1);
v.push_back(MonitorHandle);
v
}
pub fn current_monitor(&self) -> Option<monitor::MonitorHandle> {
Some(monitor::MonitorHandle {
inner: MonitorHandle,
})
}
pub fn scale_factor(&self) -> f64 {
MonitorHandle.scale_factor()
}
pub fn request_redraw(&self) {
*INTERNAL_EVENT.write().unwrap() = Some(InternalEvent::RedrawRequested);
ForeignLooper::for_thread().unwrap().wake();
}
pub fn inner_position(&self) -> Result<PhysicalPosition<i32>, error::NotSupportedError> {
Err(error::NotSupportedError::new())
}
pub fn outer_position(&self) -> Result<PhysicalPosition<i32>, error::NotSupportedError> {
Err(error::NotSupportedError::new())
}
pub fn set_outer_position(&self, _position: Position) {
// no effect
}
pub fn inner_size(&self) -> PhysicalSize<u32> {
self.outer_size()
}
pub fn set_inner_size(&self, _size: Size) {
warn!("Cannot set window size on Android");
}
pub fn outer_size(&self) -> PhysicalSize<u32> {
MonitorHandle.size()
}
pub fn set_min_inner_size(&self, _: Option<Size>) {}
pub fn set_max_inner_size(&self, _: Option<Size>) {}
pub fn set_title(&self, _title: &str) {}
pub fn set_visible(&self, _visibility: bool) {}
pub fn is_visible(&self) -> Option<bool> {
None
}
pub fn set_resizable(&self, _resizeable: bool) {}
pub fn is_resizable(&self) -> bool {
false
}
pub fn set_minimized(&self, _minimized: bool) {}
pub fn set_maximized(&self, _maximized: bool) {}
pub fn is_maximized(&self) -> bool {
false
}
pub fn set_fullscreen(&self, _monitor: Option<window::Fullscreen>) {
warn!("Cannot set fullscreen on Android");
}
pub fn fullscreen(&self) -> Option<window::Fullscreen> {
None
}
pub fn set_decorations(&self, _decorations: bool) {}
pub fn is_decorated(&self) -> bool {
true
}
pub fn set_always_on_top(&self, _always_on_top: bool) {}
pub fn set_window_icon(&self, _window_icon: Option<crate::icon::Icon>) {}
pub fn set_ime_position(&self, _position: Position) {}
pub fn focus_window(&self) {}
pub fn request_user_attention(&self, _request_type: Option<window::UserAttentionType>) {}
pub fn set_cursor_icon(&self, _: window::CursorIcon) {}
pub fn set_cursor_position(&self, _: Position) -> Result<(), error::ExternalError> {
Err(error::ExternalError::NotSupported(
error::NotSupportedError::new(),
))
}
pub fn set_cursor_grab(&self, _: bool) -> Result<(), error::ExternalError> {
Err(error::ExternalError::NotSupported(
error::NotSupportedError::new(),
))
}
pub fn set_cursor_visible(&self, _: bool) {}
pub fn drag_window(&self) -> Result<(), error::ExternalError> {
Err(error::ExternalError::NotSupported(
error::NotSupportedError::new(),
))
}
pub fn raw_window_handle(&self) -> RawWindowHandle {
let mut handle = AndroidNdkHandle::empty();
if let Some(native_window) = ndk_glue::native_window().as_ref() {
handle.a_native_window = unsafe { native_window.ptr().as_mut() as *mut _ as *mut _ }
} else {
panic!("Cannot get the native window, it's null and will always be null before Event::Resumed and after Event::Suspended. Make sure you only call this function between those events.");
};
RawWindowHandle::AndroidNdk(handle)
}
pub fn config(&self) -> Configuration {
CONFIG.read().unwrap().clone()
}
pub fn content_rect(&self) -> Rect {
ndk_glue::content_rect()
}
}
#[derive(Default, Clone, Debug)]
pub struct OsError;
use std::fmt::{self, Display, Formatter};
impl Display for OsError {
fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), fmt::Error> {
write!(fmt, "Android OS Error")
}
}
pub(crate) use crate::icon::NoIcon as PlatformIcon;
#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct MonitorHandle;
impl MonitorHandle {
pub fn name(&self) -> Option<String> {
Some("Android Device".to_owned())
}
pub fn size(&self) -> PhysicalSize<u32> {
if let Some(native_window) = ndk_glue::native_window().as_ref() {
let width = native_window.width() as _;
let height = native_window.height() as _;
PhysicalSize::new(width, height)
} else {
PhysicalSize::new(0, 0)
}
}
pub fn position(&self) -> PhysicalPosition<i32> {
(0, 0).into()
}
pub fn scale_factor(&self) -> f64 {
let config = CONFIG.read().unwrap();
config
.density()
.map(|dpi| dpi as f64 / 160.0)
.unwrap_or(1.0)
}
pub fn video_modes(&self) -> impl Iterator<Item = monitor::VideoMode> {
let size = self.size().into();
let mut v = Vec::new();
// FIXME this is not the real refresh rate
// (it is guarunteed to support 32 bit color though)
v.push(monitor::VideoMode {
video_mode: VideoMode {
size,
bit_depth: 32,
refresh_rate: 60,
monitor: self.clone(),
},
});
v.into_iter()
}
}
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub struct VideoMode {
size: (u32, u32),
bit_depth: u16,
refresh_rate: u16,
monitor: MonitorHandle,
}
impl VideoMode {
pub fn size(&self) -> PhysicalSize<u32> {
self.size.into()
}
pub fn bit_depth(&self) -> u16 {
self.bit_depth
}
pub fn refresh_rate(&self) -> u16 {
self.refresh_rate
}
pub fn monitor(&self) -> monitor::MonitorHandle {
monitor::MonitorHandle {
inner: self.monitor.clone(),
}
}
}