StratoSDK is a framework with a declarative approach similar to Flutter/React, written and designed entirely for Rust.
| 1 | //! Module containing the definition of the current windowing [`System`] the application is |
| 2 | //! rendering to. |
| 3 | |
| 4 | use std::fmt::{Display, Formatter}; |
| 5 | |
| 6 | use raw_window_handle::RawDisplayHandle; |
| 7 | |
| 8 | /// The windowing system that is being used. |
| 9 | #[derive(Copy, Clone, Debug)] |
| 10 | pub enum System { |
| 11 | X11 { is_x_wayland: bool }, |
| 12 | Wayland, |
| 13 | AppKit, |
| 14 | Windows, |
| 15 | } |
| 16 | |
| 17 | impl System { |
| 18 | /// Whether this window server protocol allows windows to programmatically "activate" or |
| 19 | /// show/focus themselves. |
| 20 | pub fn allows_programmatic_window_activation(&self) -> bool { |
| 21 | match self { |
| 22 | Self::AppKit | Self::X11 { .. } | Self::Windows => true, |
| 23 | Self::Wayland => false, |
| 24 | } |
| 25 | } |
| 26 | } |
| 27 | |
| 28 | impl Display for System { |
| 29 | fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { |
| 30 | match self { |
| 31 | System::X11 { is_x_wayland } => { |
| 32 | if *is_x_wayland { |
| 33 | write!(f, "Xwayland") |
| 34 | } else { |
| 35 | write!(f, "X11") |
| 36 | } |
| 37 | } |
| 38 | System::Wayland => write!(f, "Wayland"), |
| 39 | System::AppKit => write!(f, "AppKit"), |
| 40 | System::Windows => write!(f, "Windows"), |
| 41 | } |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | impl TryFrom<RawDisplayHandle> for System { |
| 46 | type Error = CreateWindowingSystemError; |
| 47 | |
| 48 | fn try_from(raw_display_handle: RawDisplayHandle) -> Result<Self, Self::Error> { |
| 49 | let display = match raw_display_handle { |
| 50 | RawDisplayHandle::AppKit(_) => System::AppKit, |
| 51 | RawDisplayHandle::Wayland(_) => System::Wayland, |
| 52 | RawDisplayHandle::Xlib(_) | RawDisplayHandle::Xcb(_) => System::X11 { |
| 53 | is_x_wayland: std::env::var("WAYLAND_DISPLAY") |
| 54 | .ok() |
| 55 | .filter(|val| !val.is_empty()) |
| 56 | .is_some(), |
| 57 | }, |
| 58 | RawDisplayHandle::Windows(_) => System::Windows, |
| 59 | _ => { |
| 60 | return Err(Self::Error::UnrecognizedDisplayHandle); |
| 61 | } |
| 62 | }; |
| 63 | |
| 64 | Ok(display) |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | #[derive(thiserror::Error, Debug)] |
| 69 | pub enum CreateWindowingSystemError { |
| 70 | #[error("Unrecognized DisplayHandle")] |
| 71 | UnrecognizedDisplayHandle, |
| 72 | } |
| 73 |