From 0b5028b1ab47707a469176e9bf20cacdd3a19861 Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Sun, 19 Apr 2020 14:39:30 +0200
Subject: Draft `Program` interactivity for `Canvas`

---
 wgpu/src/widget/canvas/program.rs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 wgpu/src/widget/canvas/program.rs

(limited to 'wgpu/src/widget/canvas/program.rs')

diff --git a/wgpu/src/widget/canvas/program.rs b/wgpu/src/widget/canvas/program.rs
new file mode 100644
index 00000000..c65a078b
--- /dev/null
+++ b/wgpu/src/widget/canvas/program.rs
@@ -0,0 +1,16 @@
+use crate::canvas::{Event, Layer, Size};
+
+pub trait Program {
+    type Input;
+
+    fn layers<'a>(&'a self, input: &'a Self::Input)
+        -> Vec<Box<dyn Layer + 'a>>;
+
+    fn update<'a>(
+        &'a mut self,
+        _event: Event,
+        _bounds: Size,
+        _input: &'a Self::Input,
+    ) {
+    }
+}
-- 
cgit