Decouple iced from coffee

src/input/mouse/button.rs

@@ -0,0 +1,7 @@
+#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
+pub enum Button {
+    Left,
+    Right,
+    Middle,
+    Other(u8),
+}

src/input/mouse/event.rs

@@ -0,0 +1,39 @@
+use super::Button;
+use crate::input::ButtonState;
+
+/// A mouse event.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum Event {
+    /// The mouse cursor entered the window.
+    CursorEntered,
+
+    /// The mouse cursor left the window.
+    CursorLeft,
+
+    /// The mouse cursor was moved
+    CursorMoved {
+        /// The X coordinate of the mouse position
+        x: f32,
+
+        /// The Y coordinate of the mouse position
+        y: f32,
+    },
+
+    /// A mouse button was pressed or released.
+    Input {
+        /// The state of the button
+        state: ButtonState,
+
+        /// The button identifier
+        button: Button,
+    },
+
+    /// The mouse wheel was scrolled.
+    WheelScrolled {
+        /// The number of horizontal lines scrolled
+        delta_x: f32,
+
+        /// The number of vertical lines scrolled
+        delta_y: f32,
+    },
+}