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#![warn(missing_docs)]
extern crate libnotify_sys as sys;
extern crate glib_2_0_sys as glib;
extern crate gtypes;
use std::ffi::{self, CStr, CString};
use std::marker::PhantomData;
use std::fmt;
use std::error::Error;
use gtypes::{TRUE, FALSE};
#[derive(Debug)]
pub enum ContextCreationError {
AlreadyExists,
InitError,
NulError(ffi::NulError),
}
impl fmt::Display for ContextCreationError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use ContextCreationError::*;
match *self {
AlreadyExists => write!(f, "A Libnotify context already exists."),
InitError => write!(f, "Failed to initialize libnotify."),
NulError(ref e) => write!(f, "{}", e),
}
}
}
impl From<ffi::NulError> for ContextCreationError {
fn from(src: ffi::NulError) -> Self {
ContextCreationError::NulError(src)
}
}
#[derive(Debug)]
pub enum NotificationCreationError {
NulError(ffi::NulError),
Unknown,
}
impl fmt::Display for NotificationCreationError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use NotificationCreationError::*;
match *self {
NulError(ref e) => write!(f, "{}", e),
Unknown => write!(f, "Unknown error"),
}
}
}
impl From<ffi::NulError> for NotificationCreationError {
fn from(src: ffi::NulError) -> Self {
NotificationCreationError::NulError(src)
}
}
impl Error for NotificationCreationError {
fn description(&self) -> &str {
"notification creation error"
}
}
pub struct Context;
impl Context {
pub fn new(app_name: &str) -> Result<Context, ContextCreationError> {
unsafe {
if sys::notify_is_initted() == TRUE {
return Err(ContextCreationError::AlreadyExists);
}
let app_name = try!(CString::new(app_name));
if sys::notify_init(app_name.as_ptr()) == FALSE {
return Err(ContextCreationError::InitError);
}
}
Ok(Context)
}
pub fn new_notification(&self,
summary: &str,
body: Option<&str>,
icon: Option<&str>)
-> Result<Notification, NotificationCreationError> {
let summary = try!(CString::new(summary));
let body = match body {
Some(body) => Some(try!(CString::new(body))),
None => None,
};
let body_ptr = match body {
Some(body) => body.as_ptr(),
None => std::ptr::null(),
};
let icon = match icon {
Some(icon) => Some(try!(CString::new(icon))),
None => None,
};
let icon_ptr = match icon {
Some(icon) => icon.as_ptr(),
None => std::ptr::null(),
};
unsafe {
let n = sys::notify_notification_new(summary.as_ptr(), body_ptr, icon_ptr);
if n.is_null() {
return Err(NotificationCreationError::Unknown);
}
Ok(Notification {
handle: n,
_phantom: PhantomData,
})
}
}
pub fn show(&self,
summary: &str,
body: Option<&str>,
icon: Option<&str>)
-> Result<(), Box<Error>> {
let notif = try!(self.new_notification(summary, body, icon));
try!(notif.show());
Ok(())
}
}
impl Drop for Context {
fn drop(&mut self) {
unsafe {
sys::notify_uninit();
}
}
}
pub struct Notification<'a> {
handle: *mut sys::NotifyNotification,
_phantom: PhantomData<&'a Context>,
}
impl<'a> Notification<'a> {
pub fn show(&'a self) -> Result<(), NotificationShowError> {
unsafe {
let mut err: *mut glib::GError = std::ptr::null_mut();
sys::notify_notification_show(self.handle, &mut err);
if !err.is_null() {
let result = Err(NotificationShowError {
message: CStr::from_ptr((*err).message).to_string_lossy().into_owned(),
});
glib::g_error_free(err);
return result;
}
Ok(())
}
}
}
#[derive(Debug)]
pub struct NotificationShowError {
message: String,
}
impl fmt::Display for NotificationShowError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Error showing notification: {}", self.message)
}
}
impl Error for NotificationShowError {
fn description(&self) -> &str {
"notification show error"
}
}