commit 6f0d10fa2fcfd0ced397d4163a81c0b5ddad548c
Author: eater <=@eater.me>
Date:   Mon Dec 9 02:23:58 2019 +0100

    Initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53eaa21
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..6a5bb24
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,79 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "autocfg"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "bitflags"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "cc"
+version = "1.0.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "libc"
+version = "0.2.66"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "maplit"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "misclick"
+version = "0.1.0"
+dependencies = [
+ "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rlua 0.16.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "x11 2.18.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pkg-config"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "rlua"
+version = "0.16.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "x11"
+version = "2.18.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[metadata]
+"checksum autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
+"checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+"checksum cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)" = "f52a465a666ca3d838ebbf08b241383421412fe7ebb463527bba275526d89f76"
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+"checksum maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
+"checksum num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c81ffc11c212fa327657cb19dd85eb7419e163b5b076bede2bdb5c974c07e4"
+"checksum pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
+"checksum rlua 0.16.3 (registry+https://github.com/rust-lang/crates.io-index)" = "62fc0e980c94fe9ef795b1bb3874649c8c6e9bb67d3b90d48380ba24c69c23ea"
+"checksum x11 2.18.1 (registry+https://github.com/rust-lang/crates.io-index)" = "39697e3123f715483d311b5826e254b6f3cfebdd83cf7ef3358f579c3d68e235"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..65d90e6
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "misclick"
+version = "0.1.0"
+authors = ["eater <=@eater.me>"]
+edition = "2018"
+
+[dependencies]
+rlua = "0.16.3"
+maplit = "1.0.2"
+
+[dependencies.x11]
+version = "2.18.1"
+features = ["xlib", "xtest"]
\ No newline at end of file
diff --git a/example/misclick.lua b/example/misclick.lua
new file mode 100644
index 0000000..92e165c
--- /dev/null
+++ b/example/misclick.lua
@@ -0,0 +1,2 @@
+bind(k.x, m.n(12))
+sync(m.left, k.n(132))
\ No newline at end of file
diff --git a/src/config.rs b/src/config.rs
new file mode 100644
index 0000000..95424f0
--- /dev/null
+++ b/src/config.rs
@@ -0,0 +1,7 @@
+use std::collections::HashMap;
+use crate::types::{Bind, Handler};
+
+#[derive(Default, Debug)]
+pub struct Config {
+    pub binds: HashMap<Bind, Handler>
+}
diff --git a/src/lua_config.rs b/src/lua_config.rs
new file mode 100644
index 0000000..f8bec1d
--- /dev/null
+++ b/src/lua_config.rs
@@ -0,0 +1,39 @@
+use rlua::{Lua, Context, Error};
+use crate::maps::init_lua;
+use crate::types::{Bind, Action, Handler};
+use crate::config::Config;
+use std::default::Default;
+
+pub fn load_config(lua_config: &str) -> Result<Config, Error> {
+    let lua = Lua::new();
+
+    let bind: Result<_, Error> = lua.context(|c: Context| {
+        init_lua(c)?;
+
+        let g = c.globals();
+
+        let mut config = Config::default();
+
+        c.scope::<_, Result<_, Error>>(|scope| {
+            g.set("sync", scope.create_function_mut(|_: Context, args: (Bind, Bind, Option<bool>)| {
+                println!("config -> sync({:?}, {:?}, {:?})", args.0, args.1, args.2);
+                config
+                    .binds
+                    .insert(args.0, Handler {
+                        action: Action::Sync(args.1),
+                        passthrough: args.2.unwrap_or(false),
+                    });
+
+                Ok(())
+            })?)?;
+
+            c.load(lua_config).exec()?;
+
+            Ok(())
+        })?;
+
+        Ok(config)
+    });
+
+    Ok(bind?)
+}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..804310b
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,190 @@
+mod types;
+mod config;
+mod maps;
+mod lua_config;
+
+extern crate x11;
+
+use x11::xlib;
+use x11::xtest;
+
+use std::mem;
+use std::ffi::{CStr, CString};
+use std::ptr::null;
+use x11::xlib::{AnyModifier, ButtonPress, ButtonRelease, ButtonReleaseMask, ButtonPressMask, GrabModeAsync, RevertToNone, BadCursor, XEvent, xError, XAnyEvent, xEvent, Display, XKeyEvent, InputFocus, KeyPress, KeyRelease, KeyPressMask, KeyReleaseMask, XButtonEvent, CurrentTime, Button1Mask, Button2Mask, Window};
+use std::io::Cursor;
+use x11::xinput2::XINotifyDetailNone;
+use crate::types::{Bind, Action, Handler};
+use std::os::raw::c_long;
+use std::collections::HashMap;
+use crate::types::Bind::{Key, Mouse};
+
+struct XInfo {
+    root: u64,
+    display: *mut Display,
+}
+
+struct Subscription {
+    on: Bind,
+    handler: Handler,
+}
+
+impl Subscription {
+    pub fn subscribe(&self, xinfo: &XInfo) {
+        unsafe {
+            match self.on {
+                Bind::Key(key) => {
+                    xlib::XGrabKey(xinfo.display, key as i32, AnyModifier, xinfo.root, 0, GrabModeAsync, GrabModeAsync);
+                }
+
+                Bind::Mouse(button) => {
+                    xlib::XGrabButton(xinfo.display, button, AnyModifier, xinfo.root, 0, (ButtonReleaseMask | ButtonPressMask) as u32, GrabModeAsync, GrabModeAsync, xinfo.root, 0);
+                }
+
+                _ => {}
+            }
+        }
+    }
+
+    pub fn unsubscribe(&self, xinfo: &XInfo) {
+        unsafe {
+            match self.on {
+                Bind::Key(key) => {
+                    xlib::XUngrabKey(xinfo.display, key as i32, AnyModifier, xinfo.root);
+                }
+
+                Bind::Mouse(button) => {
+                    xlib::XUngrabButton(xinfo.display, button, AnyModifier, xinfo.root);
+                }
+
+                _ => {}
+            }
+        }
+    }
+
+    pub fn handle(&self, pressed: bool, xinfo: &XInfo, coords: Target) {
+        println!("Handling trigger={:?} pressed={:?} action={:?}", self.on, pressed, self.handler.action);
+
+        match &self.handler.action {
+            Action::Sync(bind) => {
+                match bind {
+                    Bind::Key(key) => {
+                        unsafe {
+                            xtest::XTestFakeKeyEvent(xinfo.display, *key, pressed as i32, CurrentTime);
+                        }
+                    }
+
+                    Bind::Mouse(key) => {
+                        unsafe {
+                            xtest::XTestFakeButtonEvent(xinfo.display, *key, pressed as i32, CurrentTime);
+                        }
+                    }
+
+                    _ => {}
+                }
+            }
+            _ => {}
+        }
+    }
+}
+
+fn main() {
+    let config = lua_config::load_config("\
+
+    # sync up keys with others
+    # tables defined in maps.rs
+    # manual key codes can be given via k.n() or m.n()
+    sync(k.n(52), m.left)\
+    \
+    ").unwrap();
+
+    let display = unsafe { xlib::XOpenDisplay(null()) };
+    let root = unsafe { xlib::XDefaultRootWindow(display) };
+
+    unsafe { xtest::XTestGrabControl(display, true as i32) };
+
+    let xinfo = XInfo { display, root };
+
+    let mut subs: HashMap<Bind, Subscription> = HashMap::new();
+
+    for (bind, handler) in config.binds.iter() {
+        let sub = Subscription { handler: (*handler).clone(), on: (*bind).clone() };
+        sub.subscribe(&xinfo);
+        subs.insert((*bind).clone(), sub);
+    }
+
+    let mut event: xlib::XEvent = unsafe { mem::MaybeUninit::uninit().assume_init() };
+    loop {
+        unsafe { xlib::XNextEvent(display, &mut event); }
+        match event.get_type() {
+            xlib::KeyPress => {
+                let key = Key(unsafe { event.key.keycode });
+                if let Some(sub) = subs.get(&key) {
+                    sub.handle(true, &xinfo, unsafe { event.key.to_coords() });
+                }
+            }
+
+            xlib::KeyRelease => {
+                let key = Key(unsafe { event.key.keycode });
+                if let Some(sub) = subs.get(&key) {
+                    sub.handle(false, &xinfo, unsafe { event.key.to_coords() });
+                }
+            }
+
+            xlib::ButtonPress => {
+                let key = Mouse(unsafe { event.button.button });
+                if let Some(sub) = subs.get(&key) {
+                    sub.handle(true, &xinfo, unsafe { event.button.to_coords() });
+                }
+            }
+
+            xlib::ButtonRelease => {
+                let key = Mouse(unsafe { event.button.button });
+                if let Some(sub) = subs.get(&key) {
+                    sub.handle(false, &xinfo, unsafe { event.button.to_coords() });
+                }
+            }
+
+            _ => {}
+        }
+    }
+}
+
+struct Target {
+    x: i32,
+    y: i32,
+    x_root: i32,
+    y_root: i32,
+    window: Window,
+    subwindow: Window,
+}
+
+trait ToCoords {
+    fn to_coords(&self) -> Target;
+}
+
+impl ToCoords for XKeyEvent {
+    fn to_coords(&self) -> Target {
+        Target {
+            x: self.x,
+            y: self.y,
+            x_root: self.x_root,
+            y_root: self.y_root,
+            window: self.window,
+            subwindow: self.subwindow,
+        }
+    }
+}
+
+impl ToCoords for XButtonEvent {
+    fn to_coords(&self) -> Target {
+        Target {
+            x: self.x,
+            y: self.y,
+            x_root: self.x_root,
+            y_root: self.y_root,
+            window: self.window,
+            subwindow: self.subwindow,
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/maps.rs b/src/maps.rs
new file mode 100644
index 0000000..a818ea5
--- /dev/null
+++ b/src/maps.rs
@@ -0,0 +1,32 @@
+use rlua::{Result, Context};
+use crate::types::Bind;
+
+pub fn init_lua(lua: Context) -> Result<()> {
+    create_button_map(lua)?;
+
+    Ok(())
+}
+
+fn create_button_map(lua: Context) -> Result<()> {
+    let globals = lua.globals();
+
+    let mouse_table = lua.create_table()?;
+
+    mouse_table.set("n", lua.create_function(|_, n: u32| Ok(Bind::Mouse(n)))?)?;
+    mouse_table.set("left", Bind::Mouse(1))?;
+    mouse_table.set("middle", Bind::Mouse(2))?;
+    mouse_table.set("right", Bind::Mouse(3))?;
+    mouse_table.set("scroll_up", Bind::Mouse(4))?;
+    mouse_table.set("scroll_down", Bind::Mouse(5))?;
+
+    globals.set("mouse", mouse_table.clone())?;
+    globals.set("m", mouse_table)?;
+
+    let key_table = lua.create_table()?;
+    key_table.set("n", lua.create_function(|_, n: u32| Ok(Bind::Key(n)))?)?;
+
+    globals.set("key", key_table.clone())?;
+    globals.set("k", key_table.clone())?;
+
+    return Ok(());
+}
\ No newline at end of file
diff --git a/src/types.rs b/src/types.rs
new file mode 100644
index 0000000..53a8b60
--- /dev/null
+++ b/src/types.rs
@@ -0,0 +1,90 @@
+use rlua::{FromLua, Context, Value, Error, ToLua};
+use std::convert::TryFrom;
+
+#[derive(Hash, Ord, PartialOrd, Eq, PartialEq, Debug, Clone)]
+pub enum Bind {
+    Mouse(u32),
+    Key(u32),
+    Ping(String),
+}
+
+#[derive(Debug, Clone)]
+pub struct Handler {
+    pub passthrough: bool,
+    pub action: Action,
+}
+
+#[derive(Debug, Clone)]
+pub enum Action {
+    Sync(Bind),
+    Press(Bind),
+    Release(Bind),
+    Sleep(u32),
+    List(Vec<Action>),
+}
+
+impl<'lua> FromLua<'lua> for Bind {
+    fn from_lua(lua_value: Value<'lua>, _: Context<'lua>) -> Result<Self, Error> {
+        if let Value::Integer(n) = lua_value {
+            return Ok(Bind::Key(u32::try_from(n).map_err(|e| Error::external(e))?));
+        }
+
+        if let Value::String(c) = lua_value {
+            return Ok(Bind::Ping(String::from(c.to_str()?)));
+        }
+
+        if let Value::Table(table) = lua_value {
+            let typ: String = table.get("type")?;
+            let bind = match typ.as_str() {
+                "mouse" => Bind::Mouse(table.get("code")?),
+                "key" => Bind::Key(table.get("code")?),
+                "ping" => Bind::Ping(table.get("code")?),
+                _ => return Err(Error::RuntimeError("Type should be one of mouse, key or ping".to_string()))
+            };
+
+            return Ok(bind);
+        }
+
+        Err(Error::RuntimeError("Can't create Bind from non-table".to_string()))
+    }
+}
+
+impl<'lua> ToLua<'lua> for Bind {
+    fn to_lua(self, lua: Context<'lua>) -> Result<Value<'lua>, Error> {
+        let table = lua.create_table()?;
+        table.set("type", match self {
+            Bind::Key(_) => "key",
+            Bind::Ping(_) => "ping",
+            Bind::Mouse(_) => "mouse",
+        })?;
+
+        match self {
+            Bind::Key(n) => table.set("code", n)?,
+            Bind::Mouse(n) => table.set("code", n)?,
+            Bind::Ping(c) => table.set("code", c)?,
+        }
+
+        Ok(table.to_lua(lua)?)
+    }
+}
+
+impl<'lua> FromLua<'lua> for Action {
+    fn from_lua(lua_value: Value<'lua>, _: Context<'lua>) -> Result<Self, Error> {
+        let table = if let Value::Table(table) = lua_value {
+            table
+        } else {
+            return Err(Error::RuntimeError("Action should be a table".to_string()));
+        };
+
+        let res = match table.get::<&str, String>("type")?.as_str() {
+            "sync" => Action::Sync(table.get("bind")?),
+            "press" => Action::Press(table.get("bind")?),
+            "release" => Action::Release(table.get("bind")?),
+            "sleep" => Action::Sleep(table.get("time")?),
+            "list" => Action::List(table.get("items")?),
+            _ => return Err(Error::RuntimeError("Action type is invalid, should be one of sync, release, press, sleep, list".to_string()))
+        };
+
+        Ok(res)
+    }
+}