From c2e2ee52e85112fd33b1baecfc33f3791e9d7d98 Mon Sep 17 00:00:00 2001
From: Joscha <joscha@plugh.de>
Date: Thu, 21 Jul 2022 14:38:23 +0200
Subject: [PATCH] Add Border widget

---
 Cargo.lock               |  2 +-
 Cargo.toml               |  2 +-
 src/ui/widgets.rs        |  1 +
 src/ui/widgets/border.rs | 49 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 52 insertions(+), 2 deletions(-)
 create mode 100644 src/ui/widgets/border.rs

diff --git a/Cargo.lock b/Cargo.lock
index fa89f66..6e2c475 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1241,7 +1241,7 @@ dependencies = [
 [[package]]
 name = "toss"
 version = "0.1.0"
-source = "git+https://github.com/Garmelon/toss.git?rev=14aedaf25212cd50924566821ad37645a4cacf28#14aedaf25212cd50924566821ad37645a4cacf28"
+source = "git+https://github.com/Garmelon/toss.git?rev=53b2728c827c9f93a743d5860c1b31cb1399875b#53b2728c827c9f93a743d5860c1b31cb1399875b"
 dependencies = [
  "crossterm",
  "unicode-linebreak",
diff --git a/Cargo.toml b/Cargo.toml
index 6517aef..5abd4a4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,4 +30,4 @@ features = ["rustls-tls-native-roots"]
 
 [dependencies.toss]
 git = "https://github.com/Garmelon/toss.git"
-rev = "14aedaf25212cd50924566821ad37645a4cacf28"
+rev = "53b2728c827c9f93a743d5860c1b31cb1399875b"
diff --git a/src/ui/widgets.rs b/src/ui/widgets.rs
index 75fc727..1b93931 100644
--- a/src/ui/widgets.rs
+++ b/src/ui/widgets.rs
@@ -1,4 +1,5 @@
 pub mod background;
+pub mod border;
 pub mod empty;
 pub mod join;
 pub mod list;
diff --git a/src/ui/widgets/border.rs b/src/ui/widgets/border.rs
new file mode 100644
index 0000000..cb18090
--- /dev/null
+++ b/src/ui/widgets/border.rs
@@ -0,0 +1,49 @@
+use async_trait::async_trait;
+use toss::frame::{Frame, Pos, Size};
+
+use super::{BoxedWidget, Widget};
+
+pub struct Border(BoxedWidget);
+
+impl Border {
+    pub fn new<W: Into<BoxedWidget>>(inner: W) -> Self {
+        Self(inner.into())
+    }
+}
+
+#[async_trait]
+impl Widget for Border {
+    fn size(&self, frame: &mut Frame, max_width: Option<u16>, max_height: Option<u16>) -> Size {
+        let max_width = max_width.map(|w| w.saturating_sub(2));
+        let max_height = max_height.map(|h| h.saturating_sub(2));
+        let size = self.0.size(frame, max_width, max_height);
+        size + Size::new(2, 2)
+    }
+
+    async fn render(self: Box<Self>, frame: &mut Frame) {
+        let mut size = frame.size();
+        size.width = size.width.max(2);
+        size.height = size.height.max(2);
+
+        let right = size.width as i32 - 1;
+        let bottom = size.height as i32 - 1;
+        frame.write(Pos::new(0, 0), "┌");
+        frame.write(Pos::new(right, 0), "┐");
+        frame.write(Pos::new(0, bottom), "└");
+        frame.write(Pos::new(right, bottom), "┘");
+
+        for y in 1..bottom {
+            frame.write(Pos::new(0, y), "│");
+            frame.write(Pos::new(right, y), "│");
+        }
+
+        for x in 1..right {
+            frame.write(Pos::new(x, 0), "─");
+            frame.write(Pos::new(x, bottom), "─");
+        }
+
+        frame.push(Pos::new(1, 1), size - Size::new(2, 2));
+        self.0.render(frame).await;
+        frame.pop();
+    }
+}