Add `Runtime` concept to abstract caching

1 files changed, 0 insertions, 77 deletions

diff --git a/src/interface.rs b/src/interface.rs
deleted file mode 100644
index 6c4982e5..00000000
--- a/src/interface.rs
+++ /dev/null
@@ -1,77 +0,0 @@
-use std::hash::Hasher;
-use stretch::result;
-
-use crate::{Element, Event, Layout, MouseCursor, Point};
-
-pub struct Interface<'a, Message, Renderer> {
-    hash: u64,
-    root: Element<'a, Message, Renderer>,
-    layout: result::Layout,
-}
-
-pub struct Cache {
-    hash: u64,
-    layout: result::Layout,
-}
-
-impl<'a, Message, Renderer> Interface<'a, Message, Renderer> {
-    pub fn compute(
-        root: Element<'a, Message, Renderer>,
-        renderer: &Renderer,
-    ) -> Interface<'a, Message, Renderer> {
-        let hasher = &mut crate::Hasher::default();
-        root.hash(hasher);
-
-        let hash = hasher.finish();
-        let layout = root.compute_layout(renderer);
-
-        Interface { hash, root, layout }
-    }
-
-    pub fn compute_with_cache(
-        root: Element<'a, Message, Renderer>,
-        renderer: &Renderer,
-        cache: Cache,
-    ) -> Interface<'a, Message, Renderer> {
-        let hasher = &mut crate::Hasher::default();
-        root.hash(hasher);
-
-        let hash = hasher.finish();
-
-        let layout = if hash == cache.hash {
-            cache.layout
-        } else {
-            root.compute_layout(renderer)
-        };
-
-        Interface { hash, root, layout }
-    }
-
-    pub fn on_event(&mut self, event: Event, cursor_position: Point, messages: &mut Vec<Message>) {
-        let Interface { root, layout, .. } = self;
-
-        root.widget
-            .on_event(event, Self::layout(layout), cursor_position, messages);
-    }
-
-    pub fn draw(&self, renderer: &mut Renderer, cursor_position: Point) -> MouseCursor {
-        let Interface { root, layout, .. } = self;
-
-        let cursor = root
-            .widget
-            .draw(renderer, Self::layout(layout), cursor_position);
-
-        cursor
-    }
-
-    pub fn cache(self) -> Cache {
-        Cache {
-            hash: self.hash,
-            layout: self.layout,
-        }
-    }
-
-    fn layout(layout: &result::Layout) -> Layout<'_> {
-        Layout::new(layout, Point::new(0.0, 0.0))
-    }
-}