Linux grab (#52)

* WIP: add linux grabbing

* add working linux grabbing (requires root)

test_grab fails because simulate() operates on the level of x11, but
grab() operates at a lower level, so never sees simulated events.

* add a few more keys, better comments

* Fixing unstable_grab for linux (with root privileges required.)

* Rebase hiccup.

* Adding cargo fmt

* Clippy.

* Fixing clippy on mac os + cast_ptr_alignment.

* Fixing MacOS again ?

* Correct clippy allow

* Fixing windows test.

Co-authored-by: Max Blachman <blachmanmax@gmail.com>

Author: Narsil

.github/workflows/rust.yml

@@ -28,6 +28,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: CargoFmt
+      run: rustup component add rustfmt
     - name: Dependencies
       run: ${{matrix.dependencies}}
     - name: Setup headless environment

Cargo.toml

@@ -18,11 +18,11 @@ serde = {version = "1.0", features = ["derive"], optional=true}
 
 [features]
 serialize = ["serde"]
-unstable_grab = []
+unstable_grab = ["evdev-rs", "epoll", "inotify"]
 
 [target.'cfg(target_os = "macos")'.dependencies]
 lazy_static = "1.4.0"
-cocoa = "0.20"
+cocoa = "0.22"
 core-graphics = {version = "0.19.0", features = ["highsierra"]}
 core-foundation = {version = "0.7"}
 core-foundation-sys = {version = "0.7"}
@@ -31,7 +31,9 @@ core-foundation-sys = {version = "0.7"}
 [target.'cfg(target_os = "linux")'.dependencies]
 libc = "0.2"
 x11 = {version = "2.18", features = ["xlib", "xrecord", "xinput"]}
-xproto = "1.1"
+evdev-rs = {version = "0.4.0", optional=true}
+epoll = {version = "4.1.0", optional=true}
+inotify = {version = "0.8.2", default-features=false, optional=true}
 
 [target.'cfg(target_os = "windows")'.dependencies]
 lazy_static = "1.4.0"
@@ -45,7 +47,6 @@ serde_json = "1.0"
 # to run thoses tests in sequence instead.
 serial_test = "0.4"
 
-
 [[example]]
 name = "serialize"
 required-features = ["serialize"]

examples/listen.rs

@@ -9,8 +9,4 @@ fn main() {
 
 fn callback(event: Event) {
     println!("My callback {:?}", event);
-    match event.name {
-        Some(_) => (), // println!("User wrote {:?}", string),
-        None => (),
-    }
 }

examples/serialize.rs

@@ -1,5 +1,4 @@
 use rdev::{Event, EventType, Key};
-use serde_json;
 use std::time::SystemTime;
 
 fn main() {

src/linux/common.rs

@@ -35,15 +35,15 @@ pub fn convert_event(code: c_uchar, type_: c_int, x: f64, y: f64) -> Option<Even
                 delta_x: 0,
             }),
             #[allow(clippy::identity_conversion)]
-            code => Some(EventType::ButtonPress(Button::Unknown(code.into()))),
+            code => Some(EventType::ButtonPress(Button::Unknown(code))),
         },
         xlib::ButtonRelease => match code {
             1 => Some(EventType::ButtonRelease(Button::Left)),
             2 => Some(EventType::ButtonRelease(Button::Middle)),
             3 => Some(EventType::ButtonRelease(Button::Right)),
             4 | 5 => None,
             #[allow(clippy::identity_conversion)]
-            _ => Some(EventType::ButtonRelease(Button::Unknown(code.into()))),
+            _ => Some(EventType::ButtonRelease(Button::Unknown(code))),
         },
         xlib::MotionNotify => Some(EventType::MouseMove { x, y }),
         _ => None,