First implementation of x11 source

This commit is contained in:
Federico Terzi 2021-01-31 18:09:03 +01:00
parent e77e013ae7
commit a450ee18fa
11 changed files with 910 additions and 128 deletions

184
Cargo.lock generated
View File

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"checksum proc-macro2 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)" = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
"checksum quote 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "991431c3519a3f36861882da93630ce66b52918dcf1b8e2fd66b397fc96f28df"
"checksum ryu 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
"checksum serde 1.0.123 (registry+https://github.com/rust-lang/crates.io-index)" = "92d5161132722baa40d802cc70b15262b98258453e85e5d1d365c757c73869ae"
"checksum serde_derive 1.0.123 (registry+https://github.com/rust-lang/crates.io-index)" = "9391c295d64fc0abb2c556bad848f33cb8296276b1ad2677d1ae1ace4f258f31"
"checksum serde_json 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)" = "4fceb2595057b6891a4ee808f70054bd2d12f0e97f1cbb78689b59f676df325a"
"checksum simplelog 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4bc0ffd69814a9b251d43afcabf96dad1b29f5028378056257be9e3fecc9f720"
"checksum syn 1.0.60 (registry+https://github.com/rust-lang/crates.io-index)" = "c700597eca8a5a762beb35753ef6b94df201c81cca676604f547495a0d7f0081"
"checksum termcolor 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
"checksum thiserror 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)" = "76cc616c6abf8c8928e2fdcc0dbfab37175edd8fb49a4641066ad1364fdab146"
"checksum thiserror-impl 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)" = "9be73a2caec27583d0046ef3796c3794f868a5bc813db689eed00c7631275cd1"
"checksum time 0.1.44 (registry+https://github.com/rust-lang/crates.io-index)" = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
"checksum unicode-segmentation 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bb0d2e7be6ae3a5fa87eed5fb451aff96f2573d2694942e40543ae0bbe19c796"
"checksum unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
"checksum wasi 0.10.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
"checksum widestring 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c168940144dd21fd8046987c16a46a33d5fc84eec29ef9dcddc2ac9e31526b7c"
"checksum winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
"checksum winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

View File

@ -7,10 +7,10 @@ build="build.rs"
[dependencies] [dependencies]
log = "0.4.14" log = "0.4.14"
lazycell = "1.3.0"
[target.'cfg(windows)'.dependencies] [target.'cfg(windows)'.dependencies]
widestring = "0.4.3" widestring = "0.4.3"
lazycell = "1.3.0"
[build-dependencies] [build-dependencies]
cc = "1.0.66" cc = "1.0.66"

View File

@ -35,11 +35,17 @@ fn cc_config() {
#[cfg(target_os = "linux")] #[cfg(target_os = "linux")]
fn cc_config() { fn cc_config() {
println!("cargo:rerun-if-changed=src/x11/native.cpp");
println!("cargo:rerun-if-changed=src/x11/native.h");
cc::Build::new()
.cpp(true)
.include("src/x11/native.h")
.file("src/x11/native.cpp")
.compile("espansodetect");
println!("cargo:rustc-link-search=native=/usr/lib/x86_64-linux-gnu/"); println!("cargo:rustc-link-search=native=/usr/lib/x86_64-linux-gnu/");
println!("cargo:rustc-link-lib=static=linuxbridge"); println!("cargo:rustc-link-lib=static=espansodetect");
println!("cargo:rustc-link-lib=dylib=X11"); println!("cargo:rustc-link-lib=dylib=X11");
println!("cargo:rustc-link-lib=dylib=Xtst"); println!("cargo:rustc-link-lib=dylib=Xtst");
println!("cargo:rustc-link-lib=dylib=xdo");
} }
#[cfg(target_os = "macos")] #[cfg(target_os = "macos")]

View File

@ -0,0 +1,2 @@
This is a great starting point for wayland support:
https://github.com/xkbcommon/libxkbcommon/blob/master/tools/interactive-evdev.c

View File

@ -21,3 +21,6 @@ pub mod event;
#[cfg(target_os = "windows")] #[cfg(target_os = "windows")]
pub mod win32; pub mod win32;
#[cfg(target_os = "linux")]
pub mod x11;

View File

@ -91,7 +91,7 @@ impl Win32Source {
let handle = unsafe { detect_initialize(self as *const Win32Source) }; let handle = unsafe { detect_initialize(self as *const Win32Source) };
if handle.is_null() { if handle.is_null() {
panic!("Unable to initialize Win32EventLoop"); panic!("Unable to initialize Win32Source");
} }
self.handle = handle; self.handle = handle;
@ -135,7 +135,7 @@ impl Drop for Win32Source {
let result = unsafe { detect_destroy(self.handle) }; let result = unsafe { detect_destroy(self.handle) };
if result != 0 { if result != 0 {
error!("Win32EventLoop destruction returned non-zero code"); error!("Win32Source destruction returned non-zero code");
} }
} }
} }

View File

@ -0,0 +1,359 @@
/*
* This file is part of espanso.
*
* Copyright (C) 2019-2021 Federico Terzi
*
* espanso is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* espanso is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with espanso. If not, see <https://www.gnu.org/licenses/>.
*/
use std::{
ffi::{c_void, CStr},
};
use lazycell::LazyCell;
use log::{error, trace, warn};
use crate::event::Status::*;
use crate::event::Variant::*;
use crate::event::{InputEvent, Key, KeyboardEvent, Variant};
use crate::event::{Key::*, MouseButton, MouseEvent};
const INPUT_EVENT_TYPE_KEYBOARD: i32 = 1;
const INPUT_EVENT_TYPE_MOUSE: i32 = 2;
const INPUT_STATUS_PRESSED: i32 = 1;
const INPUT_STATUS_RELEASED: i32 = 2;
const INPUT_MOUSE_LEFT_BUTTON: i32 = 1;
const INPUT_MOUSE_RIGHT_BUTTON: i32 = 3;
const INPUT_MOUSE_MIDDLE_BUTTON: i32 = 2;
const INPUT_MOUSE_BUTTON_1: i32 = 9;
const INPUT_MOUSE_BUTTON_2: i32 = 8;
// Take a look at the native.h header file for an explanation of the fields
#[repr(C)]
pub struct RawInputEvent {
pub event_type: i32,
pub buffer: [u8; 24],
pub buffer_len: i32,
pub key_sym: i32,
pub key_code: i32,
pub status: i32,
}
#[allow(improper_ctypes)]
#[link(name = "espansodetect", kind = "static")]
extern "C" {
pub fn detect_check_x11() -> i32;
pub fn detect_initialize(_self: *const X11Source, error_code: *mut i32) -> *mut c_void;
pub fn detect_eventloop(
window: *const c_void,
event_callback: extern "C" fn(_self: *mut X11Source, event: RawInputEvent),
) -> i32;
pub fn detect_destroy(window: *const c_void) -> i32;
}
pub type X11SourceCallback = Box<dyn Fn(InputEvent)>;
pub struct X11Source {
handle: *mut c_void,
callback: LazyCell<X11SourceCallback>,
}
#[allow(clippy::new_without_default)]
impl X11Source {
pub fn new() -> X11Source {
Self {
handle: std::ptr::null_mut(),
callback: LazyCell::new(),
}
}
pub fn is_compatible() -> bool {
unsafe { detect_check_x11() != 0 }
}
pub fn initialize(&mut self) {
let mut error_code = 0;
let handle = unsafe { detect_initialize(self as *const X11Source, &mut error_code) };
if handle.is_null() {
match error_code {
-1 => panic!("Unable to initialize X11Source, cannot open displays"),
-2 => panic!("Unable to initialize X11Source, X Record Extension is not installed"),
-3 => panic!("Unable to initialize X11Source, X Keyboard Extension is not installed"),
-4 => panic!("Unable to initialize X11Source, cannot initialize record range"),
-5 => panic!("Unable to initialize X11Source, cannot initialize XRecord context"),
-6 => panic!("Unable to initialize X11Source, cannot enable XRecord context"),
_ => panic!("Unable to initialize X11Source, unknown error"),
}
}
self.handle = handle;
}
pub fn eventloop(&self, event_callback: X11SourceCallback) {
if self.handle.is_null() {
panic!("Attempt to start X11Source eventloop without initialization");
}
if self.callback.fill(event_callback).is_err() {
panic!("Unable to set X11Source event callback");
}
extern "C" fn callback(_self: *mut X11Source, event: RawInputEvent) {
let event: Option<InputEvent> = event.into();
if let Some(callback) = unsafe { (*_self).callback.borrow() } {
if let Some(event) = event {
callback(event)
} else {
trace!("Unable to convert raw event to input event");
}
}
}
let error_code = unsafe { detect_eventloop(self.handle, callback) };
if error_code <= 0 {
panic!("X11Source eventloop returned a negative error code");
}
}
}
impl Drop for X11Source {
fn drop(&mut self) {
if self.handle.is_null() {
error!("X11Source destruction cannot be performed, handle is null");
return;
}
let result = unsafe { detect_destroy(self.handle) };
if result != 0 {
error!("X11Source destruction returned non-zero code");
}
}
}
impl From<RawInputEvent> for Option<InputEvent> {
fn from(raw: RawInputEvent) -> Option<InputEvent> {
let status = match raw.status {
INPUT_STATUS_RELEASED => Released,
INPUT_STATUS_PRESSED => Pressed,
_ => Pressed,
};
match raw.event_type {
// Keyboard events
INPUT_EVENT_TYPE_KEYBOARD => {
let (key, variant) = key_sym_to_key(raw.key_sym);
let value = if raw.buffer_len > 0 {
let raw_string_result =
CStr::from_bytes_with_nul(&raw.buffer[..((raw.buffer_len + 1) as usize)]);
match raw_string_result {
Ok(c_string) => {
let string_result = c_string.to_str();
match string_result {
Ok(value) => Some(value.to_string()),
Err(err) => {
warn!("char conversion error: {}", err);
None
}
}
}
Err(err) => {
warn!("Received malformed char: {}", err);
None
}
}
} else {
None
};
return Some(InputEvent::Keyboard(KeyboardEvent {
key,
value,
status,
variant,
}));
}
// Mouse events
INPUT_EVENT_TYPE_MOUSE => {
let button = raw_to_mouse_button(raw.key_code);
if let Some(button) = button {
return Some(InputEvent::Mouse(MouseEvent { button, status }));
}
}
_ => {}
}
None
}
}
// Mappings from: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values
// TODO: might need to add also the variants
fn key_sym_to_key(key_sym: i32) -> (Key, Option<Variant>) {
match key_sym {
// Modifiers
0xFFE9 => (Alt, Some(Left)),
0xFFEA => (Alt, Some(Right)),
0xFFE5 => (CapsLock, None),
0xFFE3 => (Control, Some(Left)),
0xFFE4 => (Control, Some(Right)),
0xFFE7 | 0xFFEB => (Meta, Some(Left)),
0xFFE8 | 0xFFEC => (Meta, Some(Right)),
0xFF7F => (NumLock, None),
0xFFE1 => (Shift, Some(Left)),
0xFFE2 => (Shift, Some(Right)),
// Whitespace
0xFF0D => (Enter, None),
0xFF09 => (Tab, None),
0x20 => (Space, None),
// Navigation
0xFF54 => (ArrowDown, None),
0xFF51 => (ArrowLeft, None),
0xFF53 => (ArrowRight, None),
0xFF52 => (ArrowUp, None),
0xFF57 => (End, None),
0xFF50 => (Home, None),
0xFF56 => (PageDown, None),
0xFF55 => (PageUp, None),
// Editing keys
0xFF08 => (Backspace, None),
// Function keys
0xFFBE => (F1, None),
0xFFBF => (F2, None),
0xFFC0 => (F3, None),
0xFFC1 => (F4, None),
0xFFC2 => (F5, None),
0xFFC3 => (F6, None),
0xFFC4 => (F7, None),
0xFFC5 => (F8, None),
0xFFC6 => (F9, None),
0xFFC7 => (F10, None),
0xFFC8 => (F11, None),
0xFFC9 => (F12, None),
0xFFCA => (F13, None),
0xFFCB => (F14, None),
0xFFCC => (F15, None),
0xFFCD => (F16, None),
0xFFCE => (F17, None),
0xFFCF => (F18, None),
0xFFD0 => (F19, None),
0xFFD1 => (F20, None),
// Other keys, includes the raw code provided by the operating system
_ => (Other(key_sym), None),
}
}
fn raw_to_mouse_button(raw: i32) -> Option<MouseButton> {
match raw {
INPUT_MOUSE_LEFT_BUTTON => Some(MouseButton::Left),
INPUT_MOUSE_RIGHT_BUTTON => Some(MouseButton::Right),
INPUT_MOUSE_MIDDLE_BUTTON => Some(MouseButton::Middle),
INPUT_MOUSE_BUTTON_1 => Some(MouseButton::Button1),
INPUT_MOUSE_BUTTON_2 => Some(MouseButton::Button2),
_ => None,
}
}
#[cfg(test)]
mod tests {
use std::ffi::CString;
use super::*;
fn default_raw_input_event() -> RawInputEvent {
RawInputEvent {
event_type: INPUT_EVENT_TYPE_KEYBOARD,
buffer: [0; 24],
buffer_len: 0,
key_code: 0,
key_sym: 0,
status: INPUT_STATUS_PRESSED,
}
}
#[test]
fn raw_to_input_event_keyboard_works_correctly() {
let c_string = CString::new("k".to_string()).unwrap();
let mut buffer: [u8; 24] = [0; 24];
buffer[..1].copy_from_slice(c_string.as_bytes());
let mut raw = default_raw_input_event();
raw.buffer = buffer;
raw.buffer_len = 1;
raw.status = INPUT_STATUS_RELEASED;
raw.key_sym = 0x4B;
let result: Option<InputEvent> = raw.into();
assert_eq!(
result.unwrap(),
InputEvent::Keyboard(KeyboardEvent {
key: Other(0x4B),
status: Released,
value: Some("k".to_string()),
variant: None,
})
);
}
#[test]
fn raw_to_input_event_mouse_works_correctly() {
let mut raw = default_raw_input_event();
raw.event_type = INPUT_EVENT_TYPE_MOUSE;
raw.status = INPUT_STATUS_RELEASED;
raw.key_code = INPUT_MOUSE_RIGHT_BUTTON;
let result: Option<InputEvent> = raw.into();
assert_eq!(
result.unwrap(),
InputEvent::Mouse(MouseEvent {
status: Released,
button: MouseButton::Right,
})
);
}
#[test]
fn raw_to_input_invalid_buffer() {
let buffer: [u8; 24] = [123; 24];
let mut raw = default_raw_input_event();
raw.buffer = buffer;
raw.buffer_len = 5;
let result: Option<InputEvent> = raw.into();
assert!(result.unwrap().into_keyboard().unwrap().value.is_none());
}
#[test]
fn raw_to_input_event_returns_none_when_missing_type() {
let mut raw = default_raw_input_event();
raw.event_type = 0;
let result: Option<InputEvent> = raw.into();
assert!(result.is_none());
}
}

View File

@ -0,0 +1,345 @@
/*
* This file is part of espanso.
*
* Copyright (C) 2019-2021 Federico Terzi
*
* espanso is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* espanso is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with espanso. If not, see <https://www.gnu.org/licenses/>.
*/
/*
This code uses the X11 Record Extension to receive keyboard
events. Documentation of this library can be found here:
https://www.x.org/releases/X11R7.6/doc/libXtst/recordlib.html
We will refer to this extension as RE from now on.
*/
#include "native.h"
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <array>
#include <string.h>
#include <memory>
#include <X11/Xlibint.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/keysymdef.h>
#include <X11/keysym.h>
#include <X11/extensions/record.h>
#include <X11/extensions/XTest.h>
#include <X11/XKBlib.h>
#include <X11/Xatom.h>
/*
This struct is needed to receive events from the RE.
The funny thing is: it's not defined there, it should though.
The only place this is mentioned is the libxnee library,
so check that out if you need a reference.
*/
typedef union
{
unsigned char type;
xEvent event;
xResourceReq req;
xGenericReply reply;
xError error;
xConnSetupPrefix setup;
} XRecordDatum;
typedef struct
{
// Connections to the X server, RE recommends 2 connections:
// one for recording control and one for reading the recorded data.
Display *data_disp;
Display *ctrl_disp;
XRecordRange *record_range;
XRecordContext x_context;
void *rust_instance;
EventCallback event_callback;
} DetectContext;
void detect_event_callback(XPointer, XRecordInterceptData *);
int detect_error_callback(Display *display, XErrorEvent *error);
int32_t detect_check_x11()
{
Display *check_disp = XOpenDisplay(NULL);
if (!check_disp)
{
return 0;
}
XCloseDisplay(check_disp);
return 1;
}
void *detect_initialize(void *_rust_instance, int32_t *error_code)
{
setlocale(LC_ALL, "");
std::unique_ptr<DetectContext> context;
context.reset(new DetectContext());
context->rust_instance = _rust_instance;
// Open the connections to the X server.
// RE recommends to open 2 connections to the X server:
// one for the recording control and one to read the protocol
// data.
context->ctrl_disp = XOpenDisplay(NULL);
context->data_disp = XOpenDisplay(NULL);
if (!context->ctrl_disp || !context->data_disp)
{ // Display error
*error_code = -1;
return nullptr;
}
// We must set the ctrl_disp to sync mode, or, when we the enable
// context in data_disp, there will be a fatal X error.
XSynchronize(context->ctrl_disp, True);
int dummy;
// Make sure the X RE is installed in this system.
if (!XRecordQueryVersion(context->ctrl_disp, &dummy, &dummy))
{
*error_code = -2;
return nullptr;
}
// Make sure the X Keyboard Extension is installed
if (!XkbQueryExtension(context->ctrl_disp, &dummy, &dummy, &dummy, &dummy, &dummy))
{
*error_code = -3;
return nullptr;
}
// Initialize the record range, that is the kind of events we want to track.
context->record_range = XRecordAllocRange();
if (!context->record_range)
{
*error_code = -4;
return nullptr;
}
context->record_range->device_events.first = KeyPress;
context->record_range->device_events.last = ButtonRelease;
// We want to get the keys from all clients
XRecordClientSpec client_spec;
client_spec = XRecordAllClients;
// Initialize the context
context->x_context = XRecordCreateContext(context->ctrl_disp, 0, &client_spec, 1, &context->record_range, 1);
if (!context->x_context)
{
*error_code = -5;
return nullptr;
}
if (!XRecordEnableContextAsync(context->data_disp, context->x_context, detect_event_callback, (XPointer)context.get()))
{
*error_code = -6;
return nullptr;
}
// Setup a custom error handler
XSetErrorHandler(&detect_error_callback);
// Note: We might never get a MappingNotify event if the
// modifier and keymap information was never cached in Xlib.
// The next line makes sure that this happens initially.
XKeysymToKeycode(context->ctrl_disp, XK_F1);
// Release the unique_ptr to avoid freeing the context right-away.
return context.release();
}
int32_t detect_eventloop(void *_context, EventCallback _callback)
{
DetectContext *context = (DetectContext *)_context;
if (!context)
{
return -1;
}
context->event_callback = _callback;
bool running = true;
int ctrl_fd = XConnectionNumber(context->ctrl_disp);
int data_fd = XConnectionNumber(context->data_disp);
while (running)
{
fd_set fds;
FD_ZERO(&fds);
FD_SET(ctrl_fd, &fds);
FD_SET(data_fd, &fds);
timeval timeout;
timeout.tv_sec = 2;
timeout.tv_usec = 0;
select(max(ctrl_fd, data_fd) + 1,
&fds, NULL, NULL, &timeout);
if (FD_ISSET(data_fd, &fds))
{
XRecordProcessReplies(context->data_disp);
}
if (FD_ISSET(ctrl_fd, &fds))
{
XEvent event;
XNextEvent(context->ctrl_disp, &event);
if (event.type == MappingNotify)
{
XMappingEvent *e = (XMappingEvent *)&event;
if (e->request == MappingKeyboard)
{
XRefreshKeyboardMapping(e);
}
}
}
}
return 1;
}
int32_t detect_destroy(void *_context)
{
DetectContext *context = (DetectContext *)_context;
if (!context)
{
return -1;
}
XRecordDisableContext(context->ctrl_disp, context->x_context);
XRecordFreeContext(context->ctrl_disp, context->x_context);
XFree(context->record_range);
XCloseDisplay(context->data_disp);
XCloseDisplay(context->ctrl_disp);
delete context;
return 1;
}
void detect_event_callback(XPointer p, XRecordInterceptData *hook)
{
DetectContext *context = (DetectContext *)p;
if (!context)
{
return;
}
// Make sure the event comes from the X11 server
if (hook->category != XRecordFromServer)
{
XRecordFreeData(hook);
return;
}
// Cast the event payload to a XRecordDatum, needed later to access the fields
// This struct was hard to find and understand. Turn's out that all the
// required data are included in the "event" field of this structure.
// The funny thing is that it's not a XEvent as one might expect,
// but a xEvent, a very different beast defined in the Xproto.h header.
// I suggest you to look at that header if you want to understand where the
// upcoming field where taken from.
XRecordDatum *data = (XRecordDatum *)hook->data;
int event_type = data->type;
int key_code = data->event.u.u.detail;
// In order to convert the key_code into the corresponding string,
// we need to synthesize an artificial XKeyEvent, to feed later to the
// XLookupString function.
XKeyEvent raw_event;
raw_event.display = context->ctrl_disp;
raw_event.window = data->event.u.focus.window;
raw_event.root = XDefaultRootWindow(context->ctrl_disp);
raw_event.subwindow = None;
raw_event.time = data->event.u.keyButtonPointer.time;
raw_event.x = 1;
raw_event.y = 1;
raw_event.x_root = 1;
raw_event.y_root = 1;
raw_event.same_screen = True;
raw_event.keycode = key_code;
raw_event.state = data->event.u.keyButtonPointer.state;
raw_event.type = event_type;
InputEvent event = {};
// Extract the corresponding chars.
int res = XLookupString(&raw_event, event.buffer, sizeof(event.buffer) - 1, NULL, NULL);
if (res > 0)
{
event.buffer_len = res;
}
else
{
memset(event.buffer, 0, sizeof(event.buffer));
event.buffer_len = 0;
}
KeySym key_sym = XLookupKeysym(&raw_event, 0);
switch (event_type)
{
case KeyPress:
{
event.event_type = INPUT_EVENT_TYPE_KEYBOARD;
event.key_code = key_code;
event.key_sym = key_sym;
event.status = INPUT_STATUS_PRESSED;
break;
}
case KeyRelease:
{
event.event_type = INPUT_EVENT_TYPE_KEYBOARD;
event.key_code = key_code;
event.key_sym = key_sym;
event.status = INPUT_STATUS_RELEASED;
break;
}
case ButtonPress:
{
event.event_type = INPUT_EVENT_TYPE_MOUSE;
event.key_code = key_code;
event.status = INPUT_STATUS_PRESSED;
break;
}
case ButtonRelease:
{
event.event_type = INPUT_EVENT_TYPE_MOUSE;
event.key_code = key_code;
event.status = INPUT_STATUS_RELEASED;
break;
}
}
if (event.event_type != 0 && context->event_callback)
{
context->event_callback(context->rust_instance, event);
}
XRecordFreeData(hook);
}
int detect_error_callback(Display *, XErrorEvent *error)
{
fprintf(stderr, "X11 Reported an error, code: %d, request_code: %d, minor_code: %d\n", error->error_code, error->request_code, error->minor_code);
return 0;
}

View File

@ -0,0 +1,66 @@
/*
* This file is part of espanso.
*
* Copyright (C) 2019-2021 Federico Terzi
*
* espanso is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* espanso is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with espanso. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef ESPANSO_DETECT_H
#define ESPANSO_DETECT_H
#include <stdint.h>
#define INPUT_EVENT_TYPE_KEYBOARD 1
#define INPUT_EVENT_TYPE_MOUSE 2
#define INPUT_STATUS_PRESSED 1
#define INPUT_STATUS_RELEASED 2
typedef struct
{
// Keyboard or Mouse event
int32_t event_type;
// Contains the string corresponding to the key, if any
char buffer[24];
// Length of the extracted string. Equals 0 if no string is extracted
int32_t buffer_len;
// Code of the pressed key.
int32_t key_sym;
// Virtual key code of the pressed key in case of keyboard events
// Mouse button code otherwise.
int32_t key_code;
// Pressed or Released status
int32_t status;
} InputEvent;
typedef void (*EventCallback)(void *rust_istance, InputEvent data);
// Check if a X11 context is available, returning a non-zero code if true.
extern "C" int32_t detect_check_x11();
// Initialize the XRecord API and return the context pointer
extern "C" void *detect_initialize(void *rust_istance, int32_t *error_code);
// Run the event loop. Blocking call.
extern "C" int32_t detect_eventloop(void *context, EventCallback callback);
// Unregister from the XRecord API and destroy the context.
extern "C" int32_t detect_destroy(void *context);
#endif //ESPANSO_DETECT_H

View File

@ -40,11 +40,11 @@ fn cc_config() {
#[cfg(target_os = "linux")] #[cfg(target_os = "linux")]
fn cc_config() { fn cc_config() {
println!("cargo:rustc-link-search=native=/usr/lib/x86_64-linux-gnu/"); // println!("cargo:rustc-link-search=native=/usr/lib/x86_64-linux-gnu/");
println!("cargo:rustc-link-lib=static=linuxbridge"); // println!("cargo:rustc-link-lib=static=linuxbridge");
println!("cargo:rustc-link-lib=dylib=X11"); // println!("cargo:rustc-link-lib=dylib=X11");
println!("cargo:rustc-link-lib=dylib=Xtst"); // println!("cargo:rustc-link-lib=dylib=Xtst");
println!("cargo:rustc-link-lib=dylib=xdo"); // println!("cargo:rustc-link-lib=dylib=xdo");
} }
#[cfg(target_os = "macos")] #[cfg(target_os = "macos")]

View File

@ -25,15 +25,17 @@ fn main() {
), ),
]; ];
let (remote, mut eventloop) = espanso_ui::win32::create(espanso_ui::win32::Win32UIOptions {
show_icon: true, // let (remote, mut eventloop) = espanso_ui::win32::create(espanso_ui::win32::Win32UIOptions {
icon_paths: &icon_paths, // show_icon: true,
notification_icon_path: r"C:\Users\Freddy\Insync\Development\Espanso\Images\icongreensmall.png" // icon_paths: &icon_paths,
.to_string(), // notification_icon_path: r"C:\Users\Freddy\Insync\Development\Espanso\Images\icongreensmall.png"
}); // .to_string(),
// });
std::thread::spawn(move || { let handle = std::thread::spawn(move || {
let mut source = espanso_detect::win32::Win32Source::new(); //let mut source = espanso_detect::win32::Win32Source::new();
let mut source = espanso_detect::x11::X11Source::new();
source.initialize(); source.initialize();
source.eventloop(Box::new(move |event: InputEvent| { source.eventloop(Box::new(move |event: InputEvent| {
println!("ev {:?}", event); println!("ev {:?}", event);
@ -49,21 +51,22 @@ fn main() {
})); }));
}); });
eventloop.initialize(); // eventloop.initialize();
eventloop.run(Box::new(move |event| { // eventloop.run(Box::new(move |event| {
println!("ui {:?}", event); // println!("ui {:?}", event);
let menu = Menu::from(vec![ // let menu = Menu::from(vec![
MenuItem::Simple(SimpleMenuItem::new("open", "Open")), // MenuItem::Simple(SimpleMenuItem::new("open", "Open")),
MenuItem::Separator, // MenuItem::Separator,
MenuItem::Sub(SubMenuItem::new( // MenuItem::Sub(SubMenuItem::new(
"Sub", // "Sub",
vec![ // vec![
MenuItem::Simple(SimpleMenuItem::new("sub1", "Sub 1")), // MenuItem::Simple(SimpleMenuItem::new("sub1", "Sub 1")),
MenuItem::Simple(SimpleMenuItem::new("sub2", "Sub 2")), // MenuItem::Simple(SimpleMenuItem::new("sub2", "Sub 2")),
], // ],
)), // )),
]) // ])
.unwrap(); // .unwrap();
remote.show_context_menu(&menu); // remote.show_context_menu(&menu);
})) // }))
handle.join();
} }