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Merge pull request #203 from Determinant/xim-improvement

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XIM: Increase the string lookup buffer size and add IC focus/unfocus.
This commit is contained in:
tomaka 2017-07-12 19:14:11 +02:00 committed by GitHub
parent e1fba7d92f 75856e0e39
commit 9462a51f32
1 changed files with 27 additions and 4 deletions
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31
src/platform/linux/x11/mod.rs
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@ -290,13 +290,26 @@ impl EventsLoop {
let written = unsafe { let written = unsafe {
use std::str; use std::str;
const INIT_BUFF_SIZE: usize = 16;
let mut windows = self.windows.lock().unwrap(); let mut windows = self.windows.lock().unwrap();
let window_data = windows.get_mut(&WindowId(xwindow)).unwrap(); let window_data = windows.get_mut(&WindowId(xwindow)).unwrap();
let mut buffer: [u8; 16] = [mem::uninitialized(); 16]; /* buffer allocated on heap instead of stack, due to the possible
let mut keysym = 0; * reallocation */
let count = (self.display.xlib.Xutf8LookupString)(window_data.ic, xkev, let mut buffer: Vec<u8> = vec![mem::uninitialized(); INIT_BUFF_SIZE];
let mut keysym: ffi::KeySym = 0;
let mut status: ffi::Status = 0;
let mut count = (self.display.xlib.Xutf8LookupString)(window_data.ic, xkev,
mem::transmute(buffer.as_mut_ptr()), mem::transmute(buffer.as_mut_ptr()),
buffer.len() as libc::c_int, &mut keysym, ptr::null_mut()); buffer.len() as libc::c_int,
&mut keysym, &mut status);
/* buffer overflowed, dynamically reallocate */
if status == ffi::XBufferOverflow {
buffer = vec![mem::uninitialized(); count as usize];
count = (self.display.xlib.Xutf8LookupString)(window_data.ic, xkev,
mem::transmute(buffer.as_mut_ptr()),
buffer.len() as libc::c_int,
&mut keysym, &mut status);
}
{ {
// Translate x event state to mods // Translate x event state to mods
@ -451,10 +464,20 @@ impl EventsLoop {
} }
ffi::XI_FocusIn => { ffi::XI_FocusIn => {
let xev: &ffi::XIFocusInEvent = unsafe { &*(xev.data as *const _) }; let xev: &ffi::XIFocusInEvent = unsafe { &*(xev.data as *const _) };
unsafe {
let mut windows = self.windows.lock().unwrap();
let window_data = windows.get_mut(&WindowId(xev.event)).unwrap();
(self.display.xlib.XSetICFocus)(window_data.ic);
}
callback(Event::WindowEvent { window_id: mkwid(xev.event), event: Focused(true) }) callback(Event::WindowEvent { window_id: mkwid(xev.event), event: Focused(true) })
} }
ffi::XI_FocusOut => { ffi::XI_FocusOut => {
let xev: &ffi::XIFocusOutEvent = unsafe { &*(xev.data as *const _) }; let xev: &ffi::XIFocusOutEvent = unsafe { &*(xev.data as *const _) };
unsafe {
let mut windows = self.windows.lock().unwrap();
let window_data = windows.get_mut(&WindowId(xev.event)).unwrap();
(self.display.xlib.XUnsetICFocus)(window_data.ic);
}
callback(Event::WindowEvent { window_id: mkwid(xev.event), event: Focused(false) }) callback(Event::WindowEvent { window_id: mkwid(xev.event), event: Focused(false) })
} }