mirror of
https://github.com/italicsjenga/winit-sonoma-fix.git
synced 2024-12-26 23:21:30 +11:00
594 lines
17 KiB
Rust
594 lines
17 KiB
Rust
#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd", target_os = "openbsd"))]
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use std::collections::VecDeque;
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use std::{env, mem, fmt};
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use std::ffi::CStr;
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use std::os::raw::*;
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use std::sync::Arc;
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use parking_lot::Mutex;
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use sctk::reexports::client::ConnectError;
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use dpi::{LogicalPosition, LogicalSize, PhysicalPosition, PhysicalSize};
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use icon::Icon;
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use error::{ExternalError, NotSupportedError, OsError as RootOsError};
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use event::Event;
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use event_loop::{EventLoopClosed, ControlFlow, EventLoopWindowTarget as RootELW};
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use monitor::{MonitorHandle as RootMonitorHandle, VideoMode};
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use window::{WindowAttributes, CursorIcon};
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use self::x11::{XConnection, XError};
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use self::x11::ffi::XVisualInfo;
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pub use self::x11::XNotSupported;
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mod dlopen;
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pub mod wayland;
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pub mod x11;
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/// Environment variable specifying which backend should be used on unix platform.
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///
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/// Legal values are x11 and wayland. If this variable is set only the named backend
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/// will be tried by winit. If it is not set, winit will try to connect to a wayland connection,
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/// and if it fails will fallback on x11.
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///
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/// If this variable is set with any other value, winit will panic.
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const BACKEND_PREFERENCE_ENV_VAR: &str = "WINIT_UNIX_BACKEND";
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#[derive(Clone, Default)]
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pub struct PlatformSpecificWindowBuilderAttributes {
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pub visual_infos: Option<XVisualInfo>,
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pub screen_id: Option<i32>,
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pub resize_increments: Option<(u32, u32)>,
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pub base_size: Option<(u32, u32)>,
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pub class: Option<(String, String)>,
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pub override_redirect: bool,
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pub x11_window_type: x11::util::WindowType,
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pub gtk_theme_variant: Option<String>,
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pub app_id: Option<String>
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}
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lazy_static!(
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pub static ref X11_BACKEND: Mutex<Result<Arc<XConnection>, XNotSupported>> = {
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Mutex::new(XConnection::new(Some(x_error_callback)).map(Arc::new))
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};
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);
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#[derive(Debug, Clone)]
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pub enum OsError {
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XError(XError),
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XMisc(&'static str),
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}
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impl fmt::Display for OsError {
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fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
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match self {
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OsError::XError(e) => formatter.pad(&e.description),
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OsError::XMisc(e) => formatter.pad(e),
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}
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}
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}
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pub enum Window {
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X(x11::Window),
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Wayland(wayland::Window),
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}
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#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub enum WindowId {
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X(x11::WindowId),
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Wayland(wayland::WindowId),
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}
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impl WindowId {
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pub unsafe fn dummy() -> Self {
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WindowId::Wayland(wayland::WindowId::dummy())
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}
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}
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#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub enum DeviceId {
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X(x11::DeviceId),
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Wayland(wayland::DeviceId),
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}
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impl DeviceId {
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pub unsafe fn dummy() -> Self {
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DeviceId::Wayland(wayland::DeviceId::dummy())
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}
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}
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#[derive(Debug, Clone)]
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pub enum MonitorHandle {
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X(x11::MonitorHandle),
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Wayland(wayland::MonitorHandle),
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}
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impl MonitorHandle {
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#[inline]
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pub fn name(&self) -> Option<String> {
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match self {
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&MonitorHandle::X(ref m) => m.name(),
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&MonitorHandle::Wayland(ref m) => m.name(),
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}
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}
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#[inline]
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pub fn native_identifier(&self) -> u32 {
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match self {
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&MonitorHandle::X(ref m) => m.native_identifier(),
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&MonitorHandle::Wayland(ref m) => m.native_identifier(),
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}
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}
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#[inline]
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pub fn size(&self) -> PhysicalSize {
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match self {
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&MonitorHandle::X(ref m) => m.size(),
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&MonitorHandle::Wayland(ref m) => m.size(),
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}
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}
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#[inline]
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pub fn position(&self) -> PhysicalPosition {
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match self {
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&MonitorHandle::X(ref m) => m.position(),
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&MonitorHandle::Wayland(ref m) => m.position(),
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}
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}
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#[inline]
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pub fn hidpi_factor(&self) -> f64 {
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match self {
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&MonitorHandle::X(ref m) => m.hidpi_factor(),
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&MonitorHandle::Wayland(ref m) => m.hidpi_factor() as f64,
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}
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}
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#[inline]
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pub fn video_modes(&self) -> Box<dyn Iterator<Item = VideoMode>> {
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match self {
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MonitorHandle::X(m) => Box::new(m.video_modes()),
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MonitorHandle::Wayland(m) => Box::new(m.video_modes()),
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}
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}
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}
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impl Window {
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#[inline]
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pub fn new<T>(
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window_target: &EventLoopWindowTarget<T>,
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attribs: WindowAttributes,
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pl_attribs: PlatformSpecificWindowBuilderAttributes,
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) -> Result<Self, RootOsError> {
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match *window_target {
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EventLoopWindowTarget::Wayland(ref window_target) => {
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wayland::Window::new(window_target, attribs, pl_attribs).map(Window::Wayland)
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},
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EventLoopWindowTarget::X(ref window_target) => {
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x11::Window::new(window_target, attribs, pl_attribs).map(Window::X)
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},
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}
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}
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#[inline]
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pub fn id(&self) -> WindowId {
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match self {
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&Window::X(ref w) => WindowId::X(w.id()),
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&Window::Wayland(ref w) => WindowId::Wayland(w.id()),
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}
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}
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#[inline]
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pub fn set_title(&self, title: &str) {
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match self {
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&Window::X(ref w) => w.set_title(title),
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&Window::Wayland(ref w) => w.set_title(title),
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}
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}
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#[inline]
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pub fn set_visible(&self, visible: bool) {
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match self {
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&Window::X(ref w) => w.set_visible(visible),
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&Window::Wayland(ref w) => w.set_visible(visible),
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}
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}
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#[inline]
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pub fn outer_position(&self) -> Result<LogicalPosition, NotSupportedError> {
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match self {
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&Window::X(ref w) => w.outer_position(),
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&Window::Wayland(ref w) => w.outer_position(),
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}
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}
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#[inline]
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pub fn inner_position(&self) -> Result<LogicalPosition, NotSupportedError> {
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match self {
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&Window::X(ref m) => m.inner_position(),
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&Window::Wayland(ref m) => m.inner_position(),
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}
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}
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#[inline]
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pub fn set_outer_position(&self, position: LogicalPosition) {
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match self {
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&Window::X(ref w) => w.set_outer_position(position),
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&Window::Wayland(ref w) => w.set_outer_position(position),
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}
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}
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#[inline]
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pub fn inner_size(&self) -> LogicalSize {
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match self {
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&Window::X(ref w) => w.inner_size(),
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&Window::Wayland(ref w) => w.inner_size(),
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}
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}
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#[inline]
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pub fn outer_size(&self) -> LogicalSize {
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match self {
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&Window::X(ref w) => w.outer_size(),
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&Window::Wayland(ref w) => w.outer_size(),
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}
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}
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#[inline]
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pub fn set_inner_size(&self, size: LogicalSize) {
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match self {
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&Window::X(ref w) => w.set_inner_size(size),
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&Window::Wayland(ref w) => w.set_inner_size(size),
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}
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}
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#[inline]
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pub fn set_min_inner_size(&self, dimensions: Option<LogicalSize>) {
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match self {
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&Window::X(ref w) => w.set_min_inner_size(dimensions),
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&Window::Wayland(ref w) => w.set_min_inner_size(dimensions),
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}
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}
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#[inline]
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pub fn set_max_inner_size(&self, dimensions: Option<LogicalSize>) {
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match self {
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&Window::X(ref w) => w.set_max_inner_size(dimensions),
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&Window::Wayland(ref w) => w.set_max_inner_size(dimensions),
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}
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}
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#[inline]
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pub fn set_resizable(&self, resizable: bool) {
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match self {
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&Window::X(ref w) => w.set_resizable(resizable),
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&Window::Wayland(ref w) => w.set_resizable(resizable),
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}
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}
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#[inline]
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pub fn set_cursor_icon(&self, cursor: CursorIcon) {
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match self {
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&Window::X(ref w) => w.set_cursor_icon(cursor),
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&Window::Wayland(ref w) => w.set_cursor_icon(cursor)
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}
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}
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#[inline]
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pub fn set_cursor_grab(&self, grab: bool) -> Result<(), ExternalError> {
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match self {
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&Window::X(ref window) => window.set_cursor_grab(grab),
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&Window::Wayland(ref window) => window.set_cursor_grab(grab),
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}
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}
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#[inline]
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pub fn set_cursor_visible(&self, visible: bool) {
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match self {
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&Window::X(ref window) => window.set_cursor_visible(visible),
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&Window::Wayland(ref window) => window.set_cursor_visible(visible),
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}
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}
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#[inline]
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pub fn hidpi_factor(&self) -> f64 {
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match self {
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&Window::X(ref w) => w.hidpi_factor(),
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&Window::Wayland(ref w) => w.hidpi_factor() as f64,
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}
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}
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#[inline]
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pub fn set_cursor_position(&self, position: LogicalPosition) -> Result<(), ExternalError> {
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match self {
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&Window::X(ref w) => w.set_cursor_position(position),
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&Window::Wayland(ref w) => w.set_cursor_position(position),
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}
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}
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#[inline]
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pub fn set_maximized(&self, maximized: bool) {
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match self {
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&Window::X(ref w) => w.set_maximized(maximized),
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&Window::Wayland(ref w) => w.set_maximized(maximized),
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}
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}
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#[inline]
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pub fn fullscreen(&self) -> Option<RootMonitorHandle> {
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match self {
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&Window::X(ref w) => w.fullscreen(),
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&Window::Wayland(ref w) => w.fullscreen()
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.map(|monitor_id| RootMonitorHandle { inner: MonitorHandle::Wayland(monitor_id) })
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}
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}
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#[inline]
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pub fn set_fullscreen(&self, monitor: Option<RootMonitorHandle>) {
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match self {
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&Window::X(ref w) => w.set_fullscreen(monitor),
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&Window::Wayland(ref w) => w.set_fullscreen(monitor)
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}
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}
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#[inline]
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pub fn set_decorations(&self, decorations: bool) {
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match self {
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&Window::X(ref w) => w.set_decorations(decorations),
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&Window::Wayland(ref w) => w.set_decorations(decorations)
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}
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}
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#[inline]
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pub fn set_always_on_top(&self, always_on_top: bool) {
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match self {
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&Window::X(ref w) => w.set_always_on_top(always_on_top),
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&Window::Wayland(_) => (),
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}
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}
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#[inline]
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pub fn set_window_icon(&self, window_icon: Option<Icon>) {
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match self {
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&Window::X(ref w) => w.set_window_icon(window_icon),
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&Window::Wayland(_) => (),
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}
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}
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#[inline]
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pub fn set_ime_position(&self, position: LogicalPosition) {
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match self {
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&Window::X(ref w) => w.set_ime_position(position),
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&Window::Wayland(_) => (),
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}
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}
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#[inline]
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pub fn request_redraw(&self) {
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match self {
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&Window::X(ref w) => w.request_redraw(),
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&Window::Wayland(ref w) => w.request_redraw(),
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}
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}
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#[inline]
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pub fn current_monitor(&self) -> RootMonitorHandle {
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match self {
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&Window::X(ref window) => RootMonitorHandle { inner: MonitorHandle::X(window.current_monitor()) },
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&Window::Wayland(ref window) => RootMonitorHandle { inner: MonitorHandle::Wayland(window.current_monitor()) },
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}
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}
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#[inline]
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pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
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match self {
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&Window::X(ref window) => window.available_monitors()
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.into_iter()
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.map(MonitorHandle::X)
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.collect(),
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&Window::Wayland(ref window) => window.available_monitors()
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.into_iter()
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.map(MonitorHandle::Wayland)
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.collect(),
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}
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}
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#[inline]
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pub fn primary_monitor(&self) -> MonitorHandle {
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match self {
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&Window::X(ref window) => MonitorHandle::X(window.primary_monitor()),
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&Window::Wayland(ref window) => MonitorHandle::Wayland(window.primary_monitor()),
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}
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}
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}
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unsafe extern "C" fn x_error_callback(
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display: *mut x11::ffi::Display,
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event: *mut x11::ffi::XErrorEvent,
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) -> c_int {
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let xconn_lock = X11_BACKEND.lock();
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if let Ok(ref xconn) = *xconn_lock {
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let mut buf: [c_char; 1024] = mem::uninitialized();
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(xconn.xlib.XGetErrorText)(
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display,
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(*event).error_code as c_int,
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buf.as_mut_ptr(),
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buf.len() as c_int,
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);
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let description = CStr::from_ptr(buf.as_ptr()).to_string_lossy();
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let error = XError {
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description: description.into_owned(),
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error_code: (*event).error_code,
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request_code: (*event).request_code,
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minor_code: (*event).minor_code,
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};
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error!("X11 error: {:#?}", error);
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*xconn.latest_error.lock() = Some(error);
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}
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// Fun fact: this return value is completely ignored.
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0
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}
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pub enum EventLoop<T: 'static> {
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Wayland(wayland::EventLoop<T>),
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X(x11::EventLoop<T>)
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}
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#[derive(Clone)]
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pub enum EventLoopProxy<T: 'static> {
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X(x11::EventLoopProxy<T>),
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Wayland(wayland::EventLoopProxy<T>),
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}
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impl<T:'static> EventLoop<T> {
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pub fn new() -> EventLoop<T> {
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if let Ok(env_var) = env::var(BACKEND_PREFERENCE_ENV_VAR) {
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match env_var.as_str() {
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"x11" => {
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// TODO: propagate
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return EventLoop::new_x11().expect("Failed to initialize X11 backend");
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},
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"wayland" => {
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return EventLoop::new_wayland()
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.expect("Failed to initialize Wayland backend");
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},
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_ => panic!(
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"Unknown environment variable value for {}, try one of `x11`,`wayland`",
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BACKEND_PREFERENCE_ENV_VAR,
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),
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}
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}
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let wayland_err = match EventLoop::new_wayland() {
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Ok(event_loop) => return event_loop,
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Err(err) => err,
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};
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let x11_err = match EventLoop::new_x11() {
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Ok(event_loop) => return event_loop,
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Err(err) => err,
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};
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let err_string = format!(
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"Failed to initialize any backend! Wayland status: {:?} X11 status: {:?}",
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wayland_err,
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x11_err,
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);
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panic!(err_string);
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}
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pub fn new_wayland() -> Result<EventLoop<T>, ConnectError> {
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wayland::EventLoop::new()
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.map(EventLoop::Wayland)
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}
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pub fn new_x11() -> Result<EventLoop<T>, XNotSupported> {
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X11_BACKEND
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.lock()
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.as_ref()
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.map(Arc::clone)
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.map(x11::EventLoop::new)
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.map(EventLoop::X)
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.map_err(|err| err.clone())
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}
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#[inline]
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pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
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match *self {
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EventLoop::Wayland(ref evlp) => evlp
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.available_monitors()
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.into_iter()
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.map(MonitorHandle::Wayland)
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.collect(),
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EventLoop::X(ref evlp) => evlp
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.x_connection()
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.available_monitors()
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.into_iter()
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.map(MonitorHandle::X)
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.collect(),
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}
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}
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#[inline]
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pub fn primary_monitor(&self) -> MonitorHandle {
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match *self {
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EventLoop::Wayland(ref evlp) => MonitorHandle::Wayland(evlp.primary_monitor()),
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EventLoop::X(ref evlp) => MonitorHandle::X(evlp.x_connection().primary_monitor()),
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}
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}
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pub fn create_proxy(&self) -> EventLoopProxy<T> {
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match *self {
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EventLoop::Wayland(ref evlp) => EventLoopProxy::Wayland(evlp.create_proxy()),
|
|
EventLoop::X(ref evlp) => EventLoopProxy::X(evlp.create_proxy()),
|
|
}
|
|
}
|
|
|
|
pub fn run_return<F>(&mut self, callback: F)
|
|
where F: FnMut(::event::Event<T>, &RootELW<T>, &mut ControlFlow)
|
|
{
|
|
match *self {
|
|
EventLoop::Wayland(ref mut evlp) => evlp.run_return(callback),
|
|
EventLoop::X(ref mut evlp) => evlp.run_return(callback)
|
|
}
|
|
}
|
|
|
|
pub fn run<F>(self, callback: F) -> !
|
|
where F: 'static + FnMut(::event::Event<T>, &RootELW<T>, &mut ControlFlow)
|
|
{
|
|
match self {
|
|
EventLoop::Wayland(evlp) => evlp.run(callback),
|
|
EventLoop::X(evlp) => evlp.run(callback)
|
|
}
|
|
}
|
|
|
|
#[inline]
|
|
pub fn is_wayland(&self) -> bool {
|
|
match *self {
|
|
EventLoop::Wayland(_) => true,
|
|
EventLoop::X(_) => false,
|
|
}
|
|
}
|
|
|
|
pub fn window_target(&self) -> &::event_loop::EventLoopWindowTarget<T> {
|
|
match *self {
|
|
EventLoop::Wayland(ref evl) => evl.window_target(),
|
|
EventLoop::X(ref evl) => evl.window_target()
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T: 'static> EventLoopProxy<T> {
|
|
pub fn send_event(&self, event: T) -> Result<(), EventLoopClosed> {
|
|
match *self {
|
|
EventLoopProxy::Wayland(ref proxy) => proxy.send_event(event),
|
|
EventLoopProxy::X(ref proxy) => proxy.send_event(event),
|
|
}
|
|
}
|
|
}
|
|
|
|
pub enum EventLoopWindowTarget<T> {
|
|
Wayland(wayland::EventLoopWindowTarget<T>),
|
|
X(x11::EventLoopWindowTarget<T>)
|
|
}
|
|
|
|
fn sticky_exit_callback<T, F>(
|
|
evt: Event<T>, target: &RootELW<T>, control_flow: &mut ControlFlow, callback: &mut F
|
|
) where F: FnMut(Event<T>, &RootELW<T>, &mut ControlFlow)
|
|
{
|
|
// make ControlFlow::Exit sticky by providing a dummy
|
|
// control flow reference if it is already Exit.
|
|
let mut dummy = ControlFlow::Exit;
|
|
let cf = if *control_flow == ControlFlow::Exit {
|
|
&mut dummy
|
|
} else {
|
|
control_flow
|
|
};
|
|
// user callback
|
|
callback(evt, target, cf)
|
|
}
|