1 files changed, 50 insertions, 0 deletions
diff --git a/src/conn_info/colours.rs b/src/conn_info/colours.rs
new file mode 100644
index 0000000..22b4fc2
--- /dev/null
+++ b/src/conn_info/colours.rs
@@ -0,0 +1,50 @@
+use crate::error::Result;
+use xcb::{
+    x::{AllocColor, Colormap},
+    Connection,
+};
+
+/// Caches colours in an X11 color map.
+pub struct Colours {
+    #[allow(unused)] // Make sure the colour map we're using doesn't go anywhere
+    cmap: Colormap,
+    border_normal: u32,
+    border_focused: u32,
+}
+
+impl Colours {
+    /// Load the colours into the given colour map
+    pub fn new_with(conn: &Connection, cmap: Colormap) -> Result<Self> {
+        // TODO: Move these colours out to config.rs
+        let (border_normal, border_focused) = (
+            conn.wait_for_reply(conn.send_request(&AllocColor {
+                cmap,
+                red: 0,
+                green: 0,
+                blue: 0,
+            }))?,
+            conn.wait_for_reply(conn.send_request(&AllocColor {
+                cmap,
+                red: u16::MAX,
+                green: 0,
+                blue: u16::MAX,
+            }))?,
+        );
+
+        Ok(Self {
+            cmap,
+            border_normal: border_normal.pixel(),
+            border_focused: border_focused.pixel(),
+        })
+    }
+
+    /// Get the pixel ID of the colour for an unfocused window's border.
+    pub const fn border_normal(&self) -> u32 {
+        self.border_normal
+    }
+
+    /// Get the pixel ID of the colour for a focused window's border.
+    pub const fn border_focused(&self) -> u32 {
+        self.border_focused
+    }
+}