diff options
Diffstat (limited to 'src/api')
| -rw-r--r-- | src/api/x11/ffi.rs | 2 | ||||
| -rw-r--r-- | src/api/x11/xdisplay.rs | 37 |
2 files changed, 31 insertions, 8 deletions
diff --git a/src/api/x11/ffi.rs b/src/api/x11/ffi.rs index 3d4f0ed..465aa95 100644 --- a/src/api/x11/ffi.rs +++ b/src/api/x11/ffi.rs @@ -5,6 +5,8 @@ pub use x11_dl::xlib::*; pub use x11_dl::xinput::*; pub use x11_dl::xinput2::*; +pub use x11_dl::error::OpenError; + pub use self::glx::types::GLXContext; /// GLX bindings diff --git a/src/api/x11/xdisplay.rs b/src/api/x11/xdisplay.rs index d48d947..2aa5d95 100644 --- a/src/api/x11/xdisplay.rs +++ b/src/api/x11/xdisplay.rs @@ -26,10 +26,10 @@ unsafe impl Sync for XConnection {} impl XConnection { pub fn new() -> Result<XConnection, XNotSupported> { // opening the libraries - let xlib = try!(ffi::Xlib::open().map_err(|_| XNotSupported)); - let xcursor = try!(ffi::Xcursor::open().map_err(|_| XNotSupported)); - let xf86vmode = try!(ffi::Xf86vmode::open().map_err(|_| XNotSupported)); - let xinput2 = try!(ffi::XInput2::open().map_err(|_| XNotSupported)); + let xlib = try!(ffi::Xlib::open()); + let xcursor = try!(ffi::Xcursor::open()); + let xf86vmode = try!(ffi::Xf86vmode::open()); + let xinput2 = try!(ffi::XInput2::open()); unsafe extern "C" fn x_error_callback(_: *mut ffi::Display, event: *mut ffi::XErrorEvent) -> libc::c_int @@ -80,7 +80,7 @@ impl XConnection { let display = unsafe { let display = (xlib.XOpenDisplay)(ptr::null()); if display.is_null() { - return Err(XNotSupported); + return Err(XNotSupported::XOpenDisplayFailed); } display }; @@ -104,12 +104,33 @@ impl Drop for XConnection { } /// Error returned if this system doesn't have XLib or can't create an X connection. -#[derive(Copy, Clone, Debug)] -pub struct XNotSupported; +#[derive(Clone, Debug)] +pub enum XNotSupported { + /// Failed to load one or several shared libraries. + LibraryOpenError(ffi::OpenError), + /// Connecting to the X server with `XOpenDisplay` failed. + XOpenDisplayFailed, // TODO: add better message +} + +impl From<ffi::OpenError> for XNotSupported { + fn from(err: ffi::OpenError) -> XNotSupported { + XNotSupported::LibraryOpenError(err) + } +} impl Error for XNotSupported { fn description(&self) -> &str { - "The X windowing system could not be initialized" + match *self { + XNotSupported::LibraryOpenError(_) => "Failed to load one of xlib's shared libraries", + XNotSupported::XOpenDisplayFailed => "Failed to open connection to X server", + } + } + + fn cause(&self) -> Option<&Error> { + match *self { + XNotSupported::LibraryOpenError(ref err) => Some(err), + _ => None + } } } |