1 files changed, 197 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..8f9a8aa
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,197 @@
+use std::thread;
+use std::time::{Duration, Instant};
+
+fn main() {
+    let win_width = 500u16;
+    let win_height = 500u16;
+
+    let (conn, screen_num) = xcb::Connection::connect(None).unwrap();
+    let setup = conn.get_setup();
+    let screen = setup.roots().nth(screen_num as usize).unwrap();
+
+    let depths = screen.allowed_depths();
+    let mut alpha_depths = depths.filter(|d| d.depth() == 32u8);
+
+    let visual = alpha_depths
+        .next()
+        .unwrap()
+        .visuals()
+        .nth(1 as usize)
+        .unwrap();
+
+    let win_start_x = 0;
+    let win_start_y = 0;
+
+    let colormap = conn.generate_id();
+    xcb::create_colormap(
+        &conn,
+        xcb::COLORMAP_ALLOC_NONE as u8,
+        colormap,
+        screen.root(),
+        visual.visual_id(),
+    );
+
+    let win = conn.generate_id();
+    xcb::create_window(
+        &conn,
+        32u8,
+        win,
+        screen.root(),
+        win_start_x,
+        win_start_y,
+        win_width,
+        win_height,
+        2,
+        xcb::WINDOW_CLASS_INPUT_OUTPUT as u16,
+        visual.visual_id(),
+        &[
+            (xcb::CW_BACK_PIXEL, 0x00),
+            (xcb::CW_BORDER_PIXEL, 0x00),
+            //(xcb::CW_OVERRIDE_REDIRECT, 1u32),
+            (xcb::CW_EVENT_MASK, xcb::EVENT_MASK_EXPOSURE),
+            (xcb::CW_COLORMAP, colormap),
+        ],
+    );
+
+    let gfx_ctx = conn.generate_id();
+    xcb::create_gc(
+        &conn,
+        gfx_ctx,
+        win,
+        &[
+            (xcb::GC_FOREGROUND, screen.white_pixel()),
+            (xcb::GC_GRAPHICS_EXPOSURES, 0),
+            (xcb::GC_LINE_WIDTH, 1),
+        ],
+    );
+
+    xcb::free_colormap(&conn, colormap);
+
+    let win_type_atom = xcb::intern_atom(&conn, true, "_NET_WM_WINDOW_TYPE")
+        .get_reply()
+        .unwrap()
+        .atom();
+    let win_menu_atom = xcb::intern_atom(&conn, true, "_NET_WM_WINDOW_TYPE_SPLASH")
+        .get_reply()
+        .unwrap()
+        .atom();
+
+    let win_state_atom = xcb::intern_atom(&conn, true, "_NET_WM_STATE")
+        .get_reply()
+        .unwrap()
+        .atom();
+    let win_on_top_atom = xcb::intern_atom(&conn, true, "_NET_WM_STATE_STAYS_ON_TOP")
+        .get_reply()
+        .unwrap()
+        .atom();
+
+    xcb::change_property(
+        &conn,
+        xcb::PROP_MODE_REPLACE as u8,
+        win,
+        win_type_atom,
+        xcb::ATOM_ATOM,
+        32,
+        &[win_menu_atom],
+    );
+    xcb::change_property(
+        &conn,
+        xcb::PROP_MODE_APPEND as u8,
+        win,
+        win_state_atom,
+        xcb::ATOM_ATOM,
+        32,
+        &[win_on_top_atom],
+    );
+
+    let mut circles = (1u16..10u16)
+        .map(|i| {
+            xcb::Arc::new(
+                win_start_x + 25 * i as i16,
+                win_start_y + 25 * i as i16,
+                win_width - 50 * i,
+                win_height - 50 * i,
+                0,
+                360 << 6,
+            )
+        })
+        .collect::<Vec<xcb::Arc>>()
+        .into_iter();
+
+    xcb::map_window(&conn, win);
+    conn.flush();
+
+    loop {
+        let event = conn.wait_for_event();
+        match event {
+            None => {
+                break;
+            }
+            Some(e) => {
+                let r = e.response_type() & !0x80;
+                match r {
+                    xcb::EXPOSE => {
+                        xcb::poly_arc(&conn, win, gfx_ctx, &[circles.next().unwrap()]);
+                        conn.flush();
+                        break;
+                    }
+                    _ => {
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    let pointer = xcb::query_pointer(&conn, win).get_reply().unwrap();
+    let p_x = pointer.root_x();
+    let p_y = pointer.root_y();
+
+    move_win_to_cursor(&conn, win, win_width, win_height, p_x, p_y);
+
+    let loop_start = Instant::now();
+    let anim_duration = Duration::from_millis(600);
+    let circle_duration = Duration::from_millis(60);
+    loop {
+        match circles.next() {
+            Some(c) => {
+                let _ = xcb::poly_arc(&conn, win, gfx_ctx, &[c]);
+                conn.flush();
+            }
+            None => {}
+        };
+        thread::sleep(circle_duration);
+        let now = Instant::now();
+        if now.duration_since(loop_start) > anim_duration {
+            break;
+        }
+    }
+    thread::sleep(Duration::from_millis(100));
+}
+
+fn move_win_to_cursor(
+    conn: &xcb::Connection,
+    win: u32,
+    win_width: u16,
+    win_height: u16,
+    p_x: i16,
+    p_y: i16,
+) {
+    let win_x = p_x - (win_width as i16) / 2;
+    let win_y = p_y - (win_height as i16) / 2;
+    xcb::configure_window(
+        &conn,
+        win,
+        &[
+            (
+                xcb::CONFIG_WINDOW_X as u16,
+                if win_x < 0 { 0 } else { win_x as u32 },
+            ),
+            (
+                xcb::CONFIG_WINDOW_Y as u16,
+                if win_y < 0 { 0 } else { win_y as u32 },
+            ),
+        ],
+    );
+    conn.flush();
+}