add support for X input method (#691)

1 files changed, 32 insertions, 0 deletions

diff --git a/src/window.rs b/src/window.rs
index 4fbe8631..8126454d 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -183,6 +183,8 @@ impl Window {
         title: &str
     ) -> Result<Window> {
         let event_loop = EventsLoop::new();
+
+        Window::platform_window_init();
         let window = WindowBuilder::new()
             .with_title(title);
         let context = ContextBuilder::new()
@@ -282,6 +284,36 @@ impl Window {
         }
     }
 
+    #[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd"))]
+    pub fn platform_window_init() {
+        /// Set up env to make XIM work correctly
+        use x11_dl::xlib;
+        use libc::{setlocale, LC_CTYPE};
+        let xlib = xlib::Xlib::open().expect("get xlib");
+        unsafe {
+            /// Use empty c string to fallback to LC_CTYPE in environment variables
+            setlocale(LC_CTYPE, b"\0".as_ptr() as *const _);
+            /// Use empty c string for implementation dependent behavior,
+            /// which might be the XMODIFIERS set in env
+            (xlib.XSetLocaleModifiers)(b"\0".as_ptr() as *const _);
+        }
+    }
+
+    /// TODO: change this directive when adding functions for other platforms
+    #[cfg(not(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd")))]
+    pub fn platform_window_init() {
+    }
+
+    #[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd"))]
+    pub fn send_xim_spot(&self, x: i16, y: i16) {
+        use glutin::os::unix::WindowExt;
+        self.window.send_xim_spot(x, y);
+    }
+
+    #[cfg(not(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd")))]
+    pub fn send_xim_spot(&self, x: i16, y: i16) {
+    }
+
     #[cfg(not(target_os = "macos"))]
     pub fn get_window_id(&self) -> Option<usize> {
         use glutin::os::unix::WindowExt;