WIP

gpui/src/elements/empty.rs

@@ -0,0 +1,45 @@
+use crate::{
+    AfterLayoutContext, AppContext, Element, Event, EventContext, LayoutContext, MutableAppContext,
+    PaintContext, SizeConstraint,
+};
+use pathfinder_geometry::vector::Vector2F;
+
+pub struct Empty {
+    size: Option<Vector2F>,
+    origin: Option<Vector2F>,
+}
+
+impl Empty {
+    pub fn new() -> Self {
+        Self {
+            size: None,
+            origin: None,
+        }
+    }
+}
+
+impl Element for Empty {
+    fn layout(
+        &mut self,
+        constraint: SizeConstraint,
+        _: &mut LayoutContext,
+        _: &AppContext,
+    ) -> Vector2F {
+        self.size = Some(constraint.min);
+        constraint.max
+    }
+
+    fn after_layout(&mut self, _: &mut AfterLayoutContext, _: &mut MutableAppContext) {}
+
+    fn paint(&mut self, origin: Vector2F, _: &mut PaintContext, _: &AppContext) {
+        self.origin = Some(origin);
+    }
+
+    fn dispatch_event(&self, _: &Event, _: &mut EventContext, _: &AppContext) -> bool {
+        false
+    }
+
+    fn size(&self) -> Option<Vector2F> {
+        self.size
+    }
+}