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-rw-r--r--src/x11/window/mod.rs50
1 files changed, 27 insertions, 23 deletions
diff --git a/src/x11/window/mod.rs b/src/x11/window/mod.rs
index 9d79ad4..cff2c61 100644
--- a/src/x11/window/mod.rs
+++ b/src/x11/window/mod.rs
@@ -17,13 +17,19 @@ mod monitor;
static THREAD_INIT: Once = ONCE_INIT;
fn ensure_thread_init() {
- THREAD_INIT.doit(|| {
+ THREAD_INIT.call_once(|| {
unsafe {
ffi::XInitThreads();
}
});
}
+fn with_c_str<F, T>(s: &str, f: F) -> T where F: FnOnce(*const i8) -> T {
+ use std::ffi::CString;
+ let c_str = CString::from_slice(s.as_bytes());
+ f(c_str.as_slice_with_nul().as_ptr())
+}
+
struct XWindow {
display: *mut ffi::Display,
window: ffi::Window,
@@ -234,13 +240,13 @@ impl Window {
// creating window, step 2
let wm_delete_window = unsafe {
- use std::c_str::ToCStr;
-
- let delete_window = "WM_DELETE_WINDOW".to_c_str();
- let mut wm_delete_window = ffi::XInternAtom(display, delete_window.as_ptr(), 0);
+ let mut wm_delete_window = with_c_str("WM_DELETE_WINDOW", |delete_window|
+ ffi::XInternAtom(display, delete_window, 0)
+ );
ffi::XSetWMProtocols(display, window, &mut wm_delete_window, 1);
- let c_title = builder.title.to_c_str();
- ffi::XStoreName(display, window, c_title.as_ptr());
+ with_c_str(&*builder.title, |title| {;
+ ffi::XStoreName(display, window, title);
+ });
ffi::XFlush(display);
wm_delete_window
@@ -257,13 +263,15 @@ impl Window {
// creating input context
let ic = unsafe {
- use std::c_str::ToCStr;
-
- let input_style = "inputStyle".to_c_str();
- let client_window = "clientWindow".to_c_str();
- let ic = ffi::XCreateIC(im, input_style.as_ptr(),
- ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window.as_ptr(),
- window, ptr::null());
+ let ic = with_c_str("inputStyle", |input_style|
+ with_c_str("clientWindow", |client_window|
+ ffi::XCreateIC(
+ im, input_style,
+ ffi::XIMPreeditNothing | ffi::XIMStatusNothing, client_window,
+ window, ptr::null()
+ )
+ )
+ );
if ic.is_null() {
return Err(OsError(format!("XCreateIC failed")));
}
@@ -302,8 +310,7 @@ impl Window {
// loading the extra GLX functions
let extra_functions = ffi::glx_extra::Glx::load_with(|addr| {
- use std::c_str::ToCStr;
- addr.with_c_str(|s| {
+ with_c_str(addr, |s| {
use libc;
ffi::glx::GetProcAddress(s as *const u8) as *const libc::c_void
})
@@ -356,12 +363,10 @@ impl Window {
}
pub fn set_title(&self, title: &str) {
- use std::c_str::ToCStr;
- let c_title = title.to_c_str();
- unsafe {
- ffi::XStoreName(self.x.display, self.x.window, c_title.as_ptr());
+ with_c_str(title, |title| unsafe {
+ ffi::XStoreName(self.x.display, self.x.window, title);
ffi::XFlush(self.x.display);
- }
+ })
}
pub fn show(&self) {
@@ -582,11 +587,10 @@ impl Window {
}
pub fn get_proc_address(&self, addr: &str) -> *const () {
- use std::c_str::ToCStr;
use std::mem;
unsafe {
- addr.with_c_str(|s| {
+ with_c_str(addr, |s| {
ffi::glx::GetProcAddress(mem::transmute(s)) as *const ()
})
}