init: initial keypress send

license
2026-01-09 20:44:12 +05:30
commit 2de7020ce8
8 changed files with 231 additions and 0 deletions
--- a/.envrc
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+.direnv
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -0,0 +1,97 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "bitflags"
+version = "2.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "812e12b5285cc515a9c72a5c1d3b6d46a19dac5acfef5265968c166106e31dd3"
+
+[[package]]
+name = "bitvec"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bc2832c24239b0141d5674bb9174f9d68a8b5b3f2753311927c172ca46f7e9c"
+dependencies = [
+ "funty",
+ "radium",
+ "tap",
+ "wyz",
+]
+
+[[package]]
+name = "cfg-if"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
+
+[[package]]
+name = "cfg_aliases"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
+
+[[package]]
+name = "evdev"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25b686663ba7f08d92880ff6ba22170f1df4e83629341cba34cf82cd65ebea99"
+dependencies = [
+ "bitvec",
+ "cfg-if",
+ "libc",
+ "nix",
+]
+
+[[package]]
+name = "funty"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
+
+[[package]]
+name = "kwargs"
+version = "0.1.0"
+dependencies = [
+ "evdev",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.180"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"
+
+[[package]]
+name = "nix"
+version = "0.29.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "cfg_aliases",
+ "libc",
+]
+
+[[package]]
+name = "radium"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
+
+[[package]]
+name = "tap"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
+
+[[package]]
+name = "wyz"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
+dependencies = [
+ "tap",
+]
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "lollipop"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+evdev = "0.13.2"
--- a/21
+++ b/21
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Himadri Bhattacharjee
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/flake.lock
+++ b/flake.lock
@@ -0,0 +1,25 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1767364772,
+        "narHash": "sha256-fFUnEYMla8b7UKjijLnMe+oVFOz6HjijGGNS1l7dYaQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "16c7794d0a28b5a37904d55bcca36003b9109aaa",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
--- a/flake.nix
+++ b/flake.nix
@@ -0,0 +1,32 @@
+{
+  description = "flake for github:lavafroth/shush";
+
+  outputs =
+    {
+      nixpkgs,
+      ...
+    }:
+    let
+      forAllSystems =
+        f:
+        nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed (system: f nixpkgs.legacyPackages.${system});
+    in
+    {
+
+      devShells = forAllSystems (pkgs: {
+
+        default = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            stdenv.cc.cc.lib
+          ];
+          LD_LIBRARY_PATH = with pkgs; lib.makeLibraryPath [
+            wayland-protocols
+            wayland
+            libxkbcommon
+            libGL
+          ];
+        };
+
+      });
+    };
+}
--- a/src/main.rs
+++ b/src/main.rs
@@ -0,0 +1,46 @@
+use evdev::uinput::VirtualDevice;
+use evdev::{AttributeSet, EventType, InputEvent, KeyCode, KeyEvent};
+use std::thread::sleep;
+use std::time::Duration;
+
+pub enum KeyState {
+    Latched(),
+    Locked,
+    None,
+}
+
+fn main() -> std::io::Result<()> {
+    let mut keys = AttributeSet::<KeyCode>::default();
+    keys.insert(KeyCode::KEY_A);
+
+    let mut device = VirtualDevice::builder()?
+        .name("lollipop")
+        .with_keys(&keys)?
+        .build()?;
+
+    for path in device.enumerate_dev_nodes_blocking()? {
+        let path = path?;
+        println!("Available as {}", path.display());
+    }
+
+    sleep(Duration::from_secs(2));
+
+    let code = KeyCode::KEY_A.code();
+
+    loop {
+        // this guarantees a key event
+        let down_event = *KeyEvent::new(KeyCode(code), 1);
+        device.emit(&[down_event]).unwrap();
+        println!("Pressed.");
+        sleep(Duration::from_secs(2));
+
+        // alternativeley we can create a InputEvent, which will be any variant of InputEvent
+        // depending on the type_ value
+        let up_event = InputEvent::new(EventType::KEY.0, code, 0);
+        device.emit(&[up_event]).unwrap();
+        println!("Released.");
+        sleep(Duration::from_secs(2));
+    }
+
+    Ok(())
+}