From 642fa1e416e1fa7ae02fa244b430a2412cdb695c Mon Sep 17 00:00:00 2001
From: Gergely Polonkai <gergely@polonkai.eu>
Date: Mon, 16 May 2022 15:15:34 +0200
Subject: [PATCH] Initial version that creates an empty window

---
 .gitignore  |   1 +
 Cargo.lock  | 320 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |   7 ++
 README.md   |   3 +
 src/main.rs | 121 ++++++++++++++++++++
 5 files changed, 452 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 README.md
 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.lock b/Cargo.lock
new file mode 100644
index 0000000..676de7c
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,320 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "calloop"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf2eec61efe56aa1e813f5126959296933cf0700030e4314786c48779a66ab82"
+dependencies = [
+ "log",
+ "nix",
+]
+
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "dlib"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac1b7517328c04c2aa68422fc60a41b92208182142ed04a25879c26c8f878794"
+dependencies = [
+ "libloading",
+]
+
+[[package]]
+name = "downcast-rs"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
+
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
+[[package]]
+name = "libc"
+version = "0.2.121"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "efaa7b300f3b5fe8eb6bf21ce3895e1751d9665086af2d64b42f19701015ff4f"
+
+[[package]]
+name = "libloading"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "efbc0f03f9a775e9f6aed295c6a1ba2253c5757a9e03d55c6caa46a681abcddd"
+dependencies = [
+ "cfg-if",
+ "winapi",
+]
+
+[[package]]
+name = "log"
+version = "0.4.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "memchr"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+
+[[package]]
+name = "memmap2"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b6c2ebff6180198788f5db08d7ce3bc1d0b617176678831a7510825973e357"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "memoffset"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "minimal-lexical"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
+
+[[package]]
+name = "nix"
+version = "0.22.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e4916f159ed8e5de0082076562152a76b7a1f64a01fd9d1e0fea002c37624faf"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if",
+ "libc",
+ "memoffset",
+]
+
+[[package]]
+name = "nom"
+version = "7.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8903e5a29a317527874d0402f867152a3d21c908bb0b933e416c65e301d4c36"
+dependencies = [
+ "memchr",
+ "minimal-lexical",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
+
+[[package]]
+name = "pkg-config"
+version = "0.3.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.36"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "632d02bff7f874a36f33ea8bb416cd484b90cc66c1194b1a1110d067a7013f58"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "scoped-tls"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
+
+[[package]]
+name = "smallvec"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
+
+[[package]]
+name = "smithay-client-toolkit"
+version = "0.15.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a28f16a97fa0e8ce563b2774d1e732dd5d4025d2772c5dba0a41a0f90a29da3"
+dependencies = [
+ "bitflags",
+ "calloop",
+ "dlib",
+ "lazy_static",
+ "log",
+ "memmap2",
+ "nix",
+ "pkg-config",
+ "wayland-client",
+ "wayland-cursor",
+ "wayland-protocols",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+
+[[package]]
+name = "wayland-client"
+version = "0.29.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91223460e73257f697d9e23d401279123d36039a3f7a449e983f123292d4458f"
+dependencies = [
+ "bitflags",
+ "downcast-rs",
+ "libc",
+ "nix",
+ "scoped-tls",
+ "wayland-commons",
+ "wayland-scanner",
+ "wayland-sys",
+]
+
+[[package]]
+name = "wayland-commons"
+version = "0.29.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94f6e5e340d7c13490eca867898c4cec5af56c27a5ffe5c80c6fc4708e22d33e"
+dependencies = [
+ "nix",
+ "once_cell",
+ "smallvec",
+ "wayland-sys",
+]
+
+[[package]]
+name = "wayland-cursor"
+version = "0.29.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c52758f13d5e7861fc83d942d3d99bf270c83269575e52ac29e5b73cb956a6bd"
+dependencies = [
+ "nix",
+ "wayland-client",
+ "xcursor",
+]
+
+[[package]]
+name = "wayland-protocols"
+version = "0.29.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60147ae23303402e41fe034f74fb2c35ad0780ee88a1c40ac09a3be1e7465741"
+dependencies = [
+ "bitflags",
+ "wayland-client",
+ "wayland-commons",
+ "wayland-scanner",
+]
+
+[[package]]
+name = "wayland-scanner"
+version = "0.29.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39a1ed3143f7a143187156a2ab52742e89dac33245ba505c17224df48939f9e0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "xml-rs",
+]
+
+[[package]]
+name = "wayland-sys"
+version = "0.29.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9341df79a8975679188e37dab3889bfa57c44ac2cb6da166f519a81cbe452d4"
+dependencies = [
+ "dlib",
+ "lazy_static",
+ "pkg-config",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "wl-seasonal-hours-clock"
+version = "0.1.0"
+dependencies = [
+ "smithay-client-toolkit",
+]
+
+[[package]]
+name = "xcursor"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "463705a63313cd4301184381c5e8042f0a7e9b4bb63653f216311d4ae74690b7"
+dependencies = [
+ "nom",
+]
+
+[[package]]
+name = "xml-rs"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2d7d3948613f75c98fd9328cfdcc45acc4d360655289d0a7d4ec931392200a3"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..808823b
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "wl-seasonal-hours-clock"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+smithay-client-toolkit = "0.15"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..68dd41b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# Seasonal Hours Clock on Wayland
+
+This is a Rust implementation of cinnamon’s [Seasonal Hours Clock](https://github.com/cinnamon-bun/seasonal-hours-clock), running as a native Wayland application.
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..923868e
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,121 @@
+extern crate smithay_client_toolkit as sctk;
+
+use sctk::reexports::client::protocol::{wl_shm, wl_surface};
+use sctk::shm::AutoMemPool;
+use sctk::window::{Event as WEvent, FallbackFrame};
+
+sctk::default_environment!(SeasonalClock, desktop);
+
+fn main() {
+    let (env, _display, mut queue) = sctk::new_default_environment!(SeasonalClock, desktop)
+        .expect("Unable to connect to a Wayland compositor");
+
+    let surface = env
+        .create_surface_with_scale_callback(|dpi, _surface, _dispatch_data| {
+            println!("dpi changed to {}", dpi);
+        })
+        .detach();
+
+    let mut next_action = None::<WEvent>;
+
+    let mut window = env
+        .create_window::<FallbackFrame, _>(
+            surface,
+            None,
+            (100, 100),
+            move |evt, mut dispatch_data| {
+                let next_action = dispatch_data.get::<Option<WEvent>>().unwrap();
+                let replace = matches!(
+                    (&evt, &*next_action),
+                    (_, &None)
+                        | (_, &Some(WEvent::Refresh))
+                        | (&WEvent::Configure { .. }, &Some(WEvent::Configure { .. }))
+                        | (&WEvent::Close, _)
+                );
+
+                if replace {
+                    *next_action = Some(evt);
+                }
+            },
+        )
+        .expect("Failed to create a window !");
+
+    window.set_title("Seasonal Hours Clock".to_string());
+
+    let mut pool = env.create_auto_pool().expect("Failed to create the memory pool.");
+    let mut need_redraw = false;
+    let mut dimensions = (100, 100);
+
+    if !env.get_shell().unwrap().needs_configure() {
+        redraw(&mut pool, window.surface(), dimensions)
+            .expect("Failed to draw");
+        window.refresh()
+    }
+
+    loop {
+        match next_action.take() {
+            Some(WEvent::Close) => break,
+            Some(WEvent::Refresh) => {
+                window.refresh();
+                window.surface().commit();
+            }
+            Some(WEvent::Configure { new_size, states: _ }) => {
+                if let Some((w, h)) = new_size {
+                    if dimensions != (w, h) {
+                        dimensions = (w, h);
+                    }
+                }
+                window.resize(dimensions.0, dimensions.1);
+                window.refresh();
+                need_redraw = true;
+            }
+            None => {}
+        }
+
+        if need_redraw {
+            need_redraw = false;
+
+            redraw(
+                &mut pool,
+                window.surface(),
+                dimensions,
+            )
+                .expect("Failed to draw")
+        }
+
+        queue.dispatch(&mut next_action, |_, _, _| {}).unwrap();
+    }
+}
+
+fn redraw(
+    pool: &mut AutoMemPool,
+    surface: &wl_surface::WlSurface,
+    (buf_x, buf_y): (u32, u32),
+) -> Result<(), ::std::io::Error> {
+    let (canvas, new_buffer) = pool.buffer(
+        buf_x as i32,
+        buf_y as i32,
+        4 * buf_x as i32,
+        wl_shm::Format::Argb8888,
+    )?;
+
+    // We do not have anything to draw yet, so draw an empty surface
+    for dst_pixel in canvas.chunks_exact_mut(4) {
+        dst_pixel[0] = 0x00;
+        dst_pixel[1] = 0x00;
+        dst_pixel[2] = 0x00;
+        dst_pixel[3] = 0xFF;
+    }
+
+    surface.attach(Some(&new_buffer), 0, 0);
+
+    if surface.as_ref().version() >= 4 {
+        surface.damage_buffer(0, 0, buf_x as i32, buf_y as i32);
+    } else {
+        surface.damage(0, 0, buf_x as i32, buf_y as i32);
+    }
+
+    surface.commit();
+
+    Ok(())
+}