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Set WM_CLASS and WM_NAME before mapping window

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ICCCM 4.1.2.5 (https://tronche.com/gui/x/icccm/sec-4.html#WM_CLASS)
states that:

> This property must be present when the window leaves the Withdrawn
> state and may be changed only while the window is in the Withdrawn
> state.

Previously, we would first map the window, and then set these
properties, causing sadness for window managers (#167,
tomaka/glutin#879). This patch changes that by setting the class and
name attributes immediately after the window is created, and before it
is mapped.

Fixes #167.
This commit is contained in:
Jon Gjengset 2017-05-04 17:34:45 -04:00
parent 6c99546035
commit 4087627b12
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GPG key ID: D64AC9D67176DC71
1 changed files with 13 additions and 12 deletions
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25
src/platform/linux/x11/window.rs
View file

@ -403,6 +403,19 @@ impl Window {
win
};
// Set ICCCM WM_CLASS property based on initial window title
// Must be done *before* mapping the window by ICCCM 4.1.2.5
unsafe {
with_c_str(&*window_attrs.title, |c_name| {
let hint = (display.xlib.XAllocClassHint)();
(*hint).res_name = c_name as *mut libc::c_char;
(*hint).res_class = c_name as *mut libc::c_char;
(display.xlib.XSetClassHint)(display.display, window, hint);
display.check_errors().expect("Failed to call XSetClassHint");
(display.xlib.XFree)(hint as *mut _);
});
}
// set visibility
if window_attrs.visible {
unsafe {
@ -466,18 +479,6 @@ impl Window {
}
}
// Set ICCCM WM_CLASS property based on initial window title
unsafe {
with_c_str(&*window_attrs.title, |c_name| {
let hint = (display.xlib.XAllocClassHint)();
(*hint).res_name = c_name as *mut libc::c_char;
(*hint).res_class = c_name as *mut libc::c_char;
(display.xlib.XSetClassHint)(display.display, window, hint);
display.check_errors().expect("Failed to call XSetClassHint");
(display.xlib.XFree)(hint as *mut _);
});
}
let is_fullscreen = window_attrs.monitor.is_some();
if is_fullscreen {