From 29b50eb7b5092a7d42c8e12d80f1ca6c22664a41 Mon Sep 17 00:00:00 2001
From: noonebtw <noonebtw@gmail.com>
Date: Sat, 9 Jan 2021 08:55:36 +0100
Subject: [PATCH] initial commit

---
 .gitignore  |   1 +
 Cargo.toml  |  10 +++++
 src/main.rs | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 128 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..f189bb7
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "wm"
+version = "0.1.0"
+authors = ["noonebtw <noonebtw@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+x11 = {version = "2.18.2", features = ["xlib"] }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..e8a31cd
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,117 @@
+use x11::xlib;
+
+use std::ptr::{null, null_mut};
+use std::sync::Arc;
+use std::ffi::CString;
+use std::io::{Result /*, Error, ErrorKind */};
+use std::sync::atomic::{AtomicPtr, Ordering};
+
+
+type Display = Arc<AtomicPtr<xlib::Display>>;
+
+#[derive(Debug)]
+struct XlibState {
+	display: Display,
+}
+
+impl XlibState {
+	fn new() -> Result<Self> {
+		let display = unsafe { xlib::XOpenDisplay(null()) };
+		assert_ne!(display, null_mut());
+
+		let display = Display::new(AtomicPtr::new(display));
+
+		Ok(Self {
+			display,
+		})
+	}
+
+	fn dpy(&self) -> *mut xlib::Display {
+		self.display.load(Ordering::SeqCst)
+	}
+
+	fn root(&self) -> u64 {
+		unsafe { xlib::XDefaultRootWindow(self.dpy()) } 
+	}
+
+	fn keycode<S: Into<String>>(&self, string: S) -> i32 {
+		let c_string = CString::new(string.into()).unwrap();
+		unsafe {
+			let keysym = xlib::XStringToKeysym(c_string.as_ptr());
+			xlib::XKeysymToKeycode(self.dpy(), keysym) as i32
+		}
+	}
+}
+
+use x11::xlib::{ButtonPressMask, ButtonReleaseMask, PointerMotionMask, GrabModeAsync, Mod1Mask};
+
+fn main() -> Result<()> {
+    println!("Hello, world!");
+
+	let state = XlibState::new()?;
+
+	unsafe {
+		xlib::XGrabKey(state.dpy(),
+					   state.keycode("F1"),
+					   Mod1Mask,
+					   state.root(),
+					   1 /* true */,
+					   GrabModeAsync,
+					   GrabModeAsync);
+
+		xlib::XGrabButton(state.dpy(),
+						  1,
+						  Mod1Mask,
+						  state.root(),
+						  1 /*true */,
+						  (ButtonPressMask | ButtonReleaseMask | PointerMotionMask) as u32,
+						  GrabModeAsync, GrabModeAsync, 0, 0);
+
+		xlib::XGrabButton(state.dpy(),
+						  3,
+						  Mod1Mask,
+						  state.root(),
+						  1 /*true */,
+						  (ButtonPressMask | ButtonReleaseMask | PointerMotionMask) as u32,
+						  GrabModeAsync, GrabModeAsync, 0, 0);
+	}
+
+	let mut attr: xlib::XWindowAttributes = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+	let mut start: xlib::XButtonEvent = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+
+	loop {
+
+
+		unsafe {
+			let mut event: xlib::XEvent = std::mem::MaybeUninit::uninit().assume_init();
+			xlib::XNextEvent(state.dpy(), &mut event);
+
+			if event.get_type() == xlib::KeyPress && event.key.subwindow != 0 {
+				xlib::XRaiseWindow(state.dpy(), event.key.subwindow);
+			}
+			else if event.get_type() == xlib::ButtonPress && event.button.subwindow != 0 {
+				xlib::XGetWindowAttributes(state.dpy(), event.button.subwindow, &mut attr);
+				start = event.button;
+			}
+			else if event.get_type() == xlib::MotionNotify && start.subwindow != 0 {
+				let xdiff = event.button.x_root - start.x_root;
+				let ydiff = event.button.y_root - start.y_root;
+
+				xlib::XMoveResizeWindow(state.dpy(),
+										start.subwindow,
+										attr.x + if start.button == 1 { xdiff } else { 0 },
+										attr.y + if start.button == 1 { ydiff } else { 0 },
+										std::cmp::max(1, attr.width +
+													  if start.button == 3 { xdiff }
+													  else { 0 }) as u32,
+										std::cmp::max(1, attr.height +
+													  if start.button == 3 { ydiff }
+													  else { 0 }) as u32);
+			}
+			else if event.get_type() == xlib::ButtonRelease {
+				start.subwindow = 0;
+			}
+		}
+
+	}
+}