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use std::io;
use Proxy;
use wayland_sys::client::*;
pub mod compositor {
pub use sys::wayland::client::{WlCompositor, WlRegion, WlSurface};
pub use sys::wayland::client::WlSurfaceEvent;
}
pub mod data_device {
pub use sys::wayland::client::{WlDataDevice, WlDataDeviceManager, WlDataOffer, WlDataSource};
pub use sys::wayland::client::{WlDataDeviceEvent, WlDataOfferEvent, WlDataSourceEvent};
}
pub mod output {
pub use sys::wayland::client::WlOutput;
pub use sys::wayland::client::WlOutputEvent;
pub use sys::wayland::client::{WlOutputMode, WlOutputSubpixel, WlOutputTransform};
}
pub mod seat {
pub use sys::wayland::client::{WlKeyboard, WlPointer, WlSeat, WlTouch};
pub use sys::wayland::client::{WlKeyboardEvent, WlPointerEvent, WlSeatEvent, WlTouchEvent};
pub use sys::wayland::client::{WlKeyboardKeyState, WlKeyboardKeymapFormat, WlPointerAxis, WlPointerButtonState, WlSeatCapability};
}
pub mod shell {
pub use sys::wayland::client::{WlShell, WlShellSurface};
pub use sys::wayland::client::WlShellSurfaceEvent;
pub use sys::wayland::client::{WlShellSurfaceFullscreenMethod, WlShellSurfaceResize, WlShellSurfaceTransient};
}
pub mod shm {
pub use sys::wayland::client::{WlBuffer, WlShm, WlShmPool};
pub use sys::wayland::client::{WlBufferEvent, WlShmEvent};
pub use sys::wayland::client::WlShmFormat;
}
pub mod subcompositor {
pub use sys::wayland::client::{WlSubcompositor, WlSubsurface};
}
pub use sys::wayland::client::{WlCallback, WlDisplay, WlRegistry};
pub use sys::wayland::client::{WlCallbackEvent, WlDisplayEvent, WlRegistryEvent};
pub use sys::wayland::client::WaylandProtocolEvent;
pub fn get_display() -> Option<WlDisplay> {
if !::wayland_sys::client::is_lib_available() { return None }
let ptr = unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_connect, ::std::ptr::null()) };
if ptr.is_null() {
None
} else {
Some(unsafe { WlDisplay::from_ptr(ptr as *mut _) })
}
}
impl WlDisplay {
/// Synchronous roundtrip
///
/// This call will cause a synchonous roundtrip with the wayland server. I will block until all
/// pending requests are send to the server and it has processed all of them and send the
/// appropriate events.
///
/// On success returns the number of dispatched events.
pub fn sync_roundtrip(&mut self) -> io::Result<i32> {
let ret = unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_roundtrip, self.ptr() as *mut _) };
if ret >= 0 { Ok(ret) } else { Err(io::Error::last_os_error()) }
}
/// Blocking dispatch
///
/// Will dispatch all pending events from the internal buffer to the events iterators.
/// If the buffer was empty, will read new events from the server socket, blocking if necessary.
///
/// On success returns the number of dispatched events.
pub fn dispatch(&mut self) -> io::Result<i32> {
let ret = unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_dispatch, self.ptr() as *mut _) };
if ret >= 0 { Ok(ret) } else { Err(io::Error::last_os_error()) }
}
/// Non-blocking dispatch
///
/// Will dispatch all pending events from the internal buffer to the events iterators.
/// Will not try to read events from the server socket, hence never blocks.
///
/// On success returns the number of dispatched events.
pub fn dispatch_pending(&self) -> io::Result<i32> {
let ret = unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_dispatch_pending, self.ptr() as *mut _) };
if ret >= 0 { Ok(ret) } else { Err(io::Error::last_os_error()) }
}
/// Prepare an conccurent read
///
/// Will declare your intention to read events from the server socket. Contrarily to `dispatch()`
/// or `sync_roundtrip()`, this method can be called several times conccurently.
///
/// Will return `None` if there are still some events awaiting dispatch. In this case, you need
/// to call `dispatch_pending()` before calling this method again.
///
/// As long as the returned guard is in scope, no events can be dispatched to any event iterator.
///
/// The guard can then be destroyed by two means:
///
/// - Calling its `cancel()` method (or letting it go out of scope): the read intention will
/// be cancelled
/// - Calling its `read_events()` method: will block until all existing guards are destroyed
/// by one of these methods, then events will be read and all blocked `read_events()` calls
/// will return.
///
/// This call will otherwise not block on the server socket if it is empty, and return
/// an io error `WouldBlock` in such cases.
pub fn prepare_read(&self) -> Option<ReadEventsGuard> {
let ret = unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_prepare_read, self.ptr() as *mut _) };
if ret >= 0 { Some(ReadEventsGuard { display: self.ptr() as *mut _ }) } else { None }
}
/// Non-blocking write to the server
///
/// Will write as many requests as possible to the server socket. Never blocks: if not all
/// requests coul be written, will return an io error `WouldBlock`.
///
/// On success returns the number of written requests.
pub fn flush(&self) -> io::Result<i32> {
let ret = unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_flush, self.ptr() as *mut _) };
if ret >= 0 { Ok(ret) } else { Err(io::Error::last_os_error()) }
}
}
impl Drop for WlDisplay {
fn drop(&mut self) {
unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_disconnect, self.ptr() as *mut _) }
}
}
/// A guard over a read intention.
///
/// See `WlDisplay::prepare_read()` for details about its use.
pub struct ReadEventsGuard {
display: *mut wl_display
}
impl ReadEventsGuard {
/// Read events
///
/// Reads events from the server socket. If other `ReadEventsGuard` exists, will block
/// until they are all destroyed.
pub fn read_events(self) -> io::Result<i32> {
let ret = unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_read_events, self.display) };
// Don't run destructor that would cancel the read intent
::std::mem::forget(self);
if ret >= 0 { Ok(ret) } else { Err(io::Error::last_os_error()) }
}
/// Cancel the read
///
/// Will cancel the read intention associated with this guard. Never blocks.
///
/// Has the same effet as letting the guard go out of scope.
pub fn cancel(self) {
// just run the destructor
}
}
impl Drop for ReadEventsGuard {
fn drop(&mut self) {
unsafe { ffi_dispatch!(WAYLAND_CLIENT_HANDLE, wl_display_cancel_read, self.display) }
}
}