From e3af509358dd57e24e3073de8a32640d6a3832d5 Mon Sep 17 00:00:00 2001
From: Joscha <joscha@plugh.de>
Date: Sat, 8 Mar 2025 19:10:29 +0100
Subject: [PATCH] Add bell widget

---
 CHANGELOG.md        |  1 +
 src/widgets.rs      |  2 ++
 src/widgets/bell.rs | 55 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 58 insertions(+)
 create mode 100644 src/widgets/bell.rs

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c43f3dc..c30abdf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ Procedure when bumping the version number:
 
 ### Added
 - `Frame::set_bell` to print a bell character when the frame is displayed
+- `widgets::bell`
 
 ## v0.3.3 - 2025-02-28
 
diff --git a/src/widgets.rs b/src/widgets.rs
index 28b44d8..cbbff7c 100644
--- a/src/widgets.rs
+++ b/src/widgets.rs
@@ -1,4 +1,5 @@
 pub mod background;
+pub mod bell;
 pub mod border;
 pub mod boxed;
 pub mod cursor;
@@ -16,6 +17,7 @@ pub mod text;
 pub mod title;
 
 pub use background::*;
+pub use bell::*;
 pub use border::*;
 pub use boxed::*;
 pub use cursor::*;
diff --git a/src/widgets/bell.rs b/src/widgets/bell.rs
new file mode 100644
index 0000000..b37fb67
--- /dev/null
+++ b/src/widgets/bell.rs
@@ -0,0 +1,55 @@
+use crate::{Frame, Size, Widget, WidthDb};
+
+///////////
+// State //
+///////////
+
+#[derive(Debug, Default, Clone)]
+pub struct BellState {
+    // Whether the bell should be rung the next time the widget is displayed.
+    pub ring: bool,
+}
+
+impl BellState {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn widget(&mut self) -> Bell<'_> {
+        Bell { state: self }
+    }
+}
+
+////////////
+// Widget //
+////////////
+
+#[derive(Debug)]
+pub struct Bell<'a> {
+    state: &'a mut BellState,
+}
+
+impl Bell<'_> {
+    pub fn state(&mut self) -> &mut BellState {
+        self.state
+    }
+}
+
+impl<E> Widget<E> for Bell<'_> {
+    fn size(
+        &self,
+        _widthdb: &mut WidthDb,
+        _max_width: Option<u16>,
+        _max_height: Option<u16>,
+    ) -> Result<Size, E> {
+        Ok(Size::ZERO)
+    }
+
+    fn draw(self, frame: &mut Frame) -> Result<(), E> {
+        if self.state.ring {
+            frame.set_bell(true);
+            self.state.ring = false
+        }
+        Ok(())
+    }
+}