added a safe wrapper for used x11 apis

This commit is contained in:
Schrottkatze 2022-06-15 11:25:58 +02:00
parent 99d36c93a4
commit 8d47ad6475
3 changed files with 115 additions and 37 deletions

View file

@ -10,6 +10,7 @@ use clap::Parser;
use x11::keysym::{XK_d, XK_Super_L};
use x11::xtest::{XTestFakeButtonEvent, XTestFakeKeyEvent, XTestFakeMotionEvent, XTestGrabControl, XTestQueryExtension};
use x11_keysymdef::lookup_by_name;
use easymacros::x11_safe_wrapper::XDisplay;
/// Macro program inspired by xmacro.
#[derive(Parser, Debug)]
@ -18,57 +19,36 @@ struct Args {
/// Display
#[clap(short, long)]
display: String,
/// xmacro compatibility
#[clap(long)]
xmacro: bool,
}
fn main () {
let args = Args::parse();
let xmacro_mode = args.xmacro;
let display = get_remote(args.display);
let display = get_remote(None);
let super_l_str_ptr = b"Super_L\0".as_ptr();
let super_l_sym = unsafe { XStringToKeysym(super_l_str_ptr as *const i8) };
let super_l_code = unsafe { XKeysymToKeycode(display, super_l_sym) };
display.send_fake_keypress_from_string(b"Super_L\0");
display.send_fake_keypress_from_string(b"d\0");
display.send_fake_keyrelease_from_string(b"d\0");
display.send_fake_keyrelease_from_string(b"Super_L\0");
let d_str_ptr = b"d\0".as_ptr();
let d_sym = unsafe { XStringToKeysym(d_str_ptr as *const i8) };
let d_code = unsafe { XKeysymToKeycode(display, d_sym) };
unsafe {
XTestFakeKeyEvent(display, super_l_code as c_uint, c_int::from(true), 10);
XFlush(display);
XTestFakeKeyEvent(display, d_code as c_uint, c_int::from(true), 10);
XFlush(display);
XTestFakeKeyEvent(display, d_code as c_uint, c_int::from(false), 10);
XFlush(display);
XTestFakeKeyEvent(display, super_l_code as c_uint, c_int::from(false), 10);
XFlush(display);
XCloseDisplay(display);
}
println!("play: {}", add(5, 10));
display.close();
}
fn get_remote(dpy_name: String) -> *mut Display {
let dpy_name = CString::new(dpy_name).unwrap();
let display_ptr: *const u8 = dpy_name.as_bytes().as_ptr();
let display = unsafe { XOpenDisplay(display_ptr as *const i8) };
fn get_remote(display_name: Option<String>) -> XDisplay {
let display = XDisplay::open(display_name);
let mut ev = c_int::default();
let mut err = c_int::default();
let mut version = (c_int::default(), c_int::default());
if unsafe { XTestQueryExtension(display, &mut ev, &mut err, &mut version.0, &mut version.1) } == 0 {
if !display.has_xtest() {
eprintln!("XTest not supported!");
unsafe { XCloseDisplay(display) };
display.close();
exit(1)
}
unsafe {
XTestGrabControl(display, c_int::from(true));
XSync(display, c_int::from(false));
};
display.grab_control();
display.sync();
display
}

View file

@ -1,3 +1,7 @@
extern crate core;
pub mod x11_safe_wrapper;
pub fn add(a: i32, b: i32) -> i32 {
a + b
}

94
src/x11_safe_wrapper.rs Normal file
View file

@ -0,0 +1,94 @@
use std::env;
use std::ffi::{CStr, CString};
use std::os::raw::{c_char, c_int, c_uchar, c_uint, c_ulong};
use x11::xlib::{Display, XCloseDisplay, XFlush, XKeysymToKeycode, XOpenDisplay, XStringToKeysym, XSync};
use x11::xtest::{XTestFakeKeyEvent, XTestGrabControl, XTestQueryExtension};
pub struct XDisplay {
ptr: *mut Display,
}
type Keysym = c_ulong;
type Keycode = c_uint;
const FALSE_C: c_int = 0;
const TRUE_C: c_int = 1;
impl XDisplay {
pub fn open(display_name: Option<String>) -> Self {
let name = CString::new(if let Some(name) = display_name { name } else { env::var("DISPLAY").expect("DISPLAY is not set") }).unwrap();
let name_ptr = name.as_bytes().as_ptr();
let display_ptr = unsafe { XOpenDisplay(name_ptr as *const i8) };
Self { ptr: display_ptr }
}
pub fn close(self) {
unsafe { XCloseDisplay(self.ptr) };
}
pub fn sync(&self) {
unsafe { XSync(self.ptr, c_int::from(false)); }
}
pub fn flush(&self) {
unsafe { XFlush(self.ptr); }
}
pub fn keysym_to_keycode(&self, keysym: c_ulong) -> Keycode {
unsafe { XKeysymToKeycode(self.ptr, keysym) as Keycode }
}
pub fn string_to_keycode(&self, string: &[u8]) -> Keycode {
self.keysym_to_keycode(string_to_keysym(string))
}
pub fn has_xtest(&self) -> bool {
let mut vals: (c_int, c_int, c_int, c_int) = (0, 0, 0, 0);
let has_extension = unsafe {
XTestQueryExtension(
self.ptr,
&mut vals.0,
&mut vals.1,
&mut vals.2,
&mut vals.3
)
};
has_extension != 0
}
pub fn send_fake_keypress_from_string(&self, string: &[u8]) {
self.send_fake_keypress_from_keysym(string_to_keysym(string))
}
pub fn send_fake_keypress_from_keysym(&self, ks: Keysym) {
self.send_fake_keypress_from_code(self.keysym_to_keycode(ks))
}
pub fn send_fake_keypress_from_code(&self, code: Keycode) {
unsafe { XTestFakeKeyEvent(self.ptr, code, TRUE_C, 10) };
self.flush();
}
pub fn send_fake_keyrelease_from_string(&self, string: &[u8]) {
self.send_fake_keyrelease_from_keysym(string_to_keysym(string))
}
pub fn send_fake_keyrelease_from_keysym(&self, ks: Keysym) {
self.send_fake_keyrelease_from_code(self.keysym_to_keycode(ks))
}
pub fn send_fake_keyrelease_from_code(&self, code: Keycode) {
unsafe { XTestFakeKeyEvent(self.ptr, code, FALSE_C, 10) };
self.flush();
}
pub fn grab_control(&self) {
unsafe { XTestGrabControl(self.ptr, TRUE_C); }
}
}
/// Wrapper for XStringToKeysym. Remember to give a null terminated string!
pub fn string_to_keysym(string: &[u8]) -> Keysym {
unsafe { XStringToKeysym(string.as_ptr() as *const c_char) }
}