86 lines
2.2 KiB
Rust
86 lines
2.2 KiB
Rust
use crate::geom;
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use crate::Atoms;
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use std::os::raw::*;
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use std::ptr::null;
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use x11::xlib::{self, Display};
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pub type ErrorHandler =
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unsafe extern "C" fn(*mut Display, *mut xlib::XErrorEvent) -> c_int;
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pub struct Xbase {
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program_title: String,
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x_display: *mut Display,
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x_screen: c_int,
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x_root: c_ulong,
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screen_sizes: geom::Sizes,
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// x_error: Option<ErrorHandler>,
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atoms: Atoms,
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}
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impl Xbase {
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pub fn new(
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program_title: String,
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// x_error_handler: ErrorHandler,
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) -> Result<Self, Box<dyn std::error::Error>> {
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unsafe {
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if xlib::XSupportsLocale() == 0 {
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return Err("no locale support in X".into());
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}
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let x_display = xlib::XOpenDisplay(null());
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if x_display.is_null() {
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return Err("cannot open X display".into());
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}
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let x_screen = xlib::XDefaultScreen(x_display);
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let x_root = xlib::XRootWindow(x_display, x_screen);
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let screen_sizes = geom::Sizes::new(
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xlib::XDisplayWidth(x_display, x_screen),
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xlib::XDisplayHeight(x_display, x_screen),
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);
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// let x_error = xlib::XSetErrorHandler(Some(x_error_wm_check));
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xlib::XSelectInput(
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x_display,
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xlib::XDefaultRootWindow(x_display),
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xlib::SubstructureRedirectMask,
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);
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xlib::XSync(x_display, xlib::False);
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// xlib::XSetErrorHandler(Some(x_error_handler));
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xlib::XSync(x_display, xlib::False);
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let atoms = Atoms::create(x_display);
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Ok(Self {
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program_title,
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x_display,
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x_screen,
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x_root,
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screen_sizes,
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// x_error,
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atoms,
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})
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}
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}
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}
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impl Drop for Xbase {
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fn drop(&mut self) {
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unsafe { xlib::XCloseDisplay(self.x_display) };
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}
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}
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/*
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unsafe extern "C" fn x_error_wm_check(
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_display: *mut Display,
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_x_error_event: *mut xlib::XErrorEvent,
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) -> c_int {
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// FIXME:
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// panic!("another window manager is already running");
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0
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}
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*/
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