From 52719c7076cafb7b01967edf4df11ea72ae45aff Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Wed, 29 Apr 2020 03:16:03 +0200
Subject: Let a `canvas::Program` control the mouse cursor

---
 wgpu/src/widget/canvas.rs         | 2 +-
 wgpu/src/widget/canvas/program.rs | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

(limited to 'wgpu/src/widget')

diff --git a/wgpu/src/widget/canvas.rs b/wgpu/src/widget/canvas.rs
index c0506cf7..0006ca8d 100644
--- a/wgpu/src/widget/canvas.rs
+++ b/wgpu/src/widget/canvas.rs
@@ -210,7 +210,7 @@ impl<Message, P: Program<Message>> Widget<Message, Renderer>
                         .collect(),
                 }),
             },
-            MouseCursor::Idle,
+            self.program.mouse_cursor(size),
         )
     }
 
diff --git a/wgpu/src/widget/canvas/program.rs b/wgpu/src/widget/canvas/program.rs
index 8e35fdfb..9e4aca89 100644
--- a/wgpu/src/widget/canvas/program.rs
+++ b/wgpu/src/widget/canvas/program.rs
@@ -1,4 +1,5 @@
 use crate::canvas::{Event, Geometry, Size};
+use iced_native::MouseCursor;
 
 pub trait Program<Message> {
     fn update(&mut self, _event: Event, _bounds: Size) -> Option<Message> {
@@ -6,6 +7,10 @@ pub trait Program<Message> {
     }
 
     fn draw(&self, bounds: Size) -> Vec<Geometry>;
+
+    fn mouse_cursor(&self, _bounds: Size) -> MouseCursor {
+        MouseCursor::default()
+    }
 }
 
 impl<T, Message> Program<Message> for &mut T
@@ -19,4 +24,8 @@ where
     fn draw(&self, bounds: Size) -> Vec<Geometry> {
         T::draw(self, bounds)
     }
+
+    fn mouse_cursor(&self, bounds: Size) -> MouseCursor {
+        T::mouse_cursor(self, bounds)
+    }
 }
-- 
cgit