Move all crates to a top-level crates folder

Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>

crates/gpui/src/elements/empty.rs

@@ -0,0 +1,74 @@
+use crate::{
+    geometry::{
+        rect::RectF,
+        vector::{vec2f, Vector2F},
+    },
+    json::{json, ToJson},
+    DebugContext,
+};
+use crate::{Element, Event, EventContext, LayoutContext, PaintContext, SizeConstraint};
+
+pub struct Empty;
+
+impl Empty {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+impl Element for Empty {
+    type LayoutState = ();
+    type PaintState = ();
+
+    fn layout(
+        &mut self,
+        constraint: SizeConstraint,
+        _: &mut LayoutContext,
+    ) -> (Vector2F, Self::LayoutState) {
+        let x = if constraint.max.x().is_finite() {
+            constraint.max.x()
+        } else {
+            constraint.min.x()
+        };
+        let y = if constraint.max.y().is_finite() {
+            constraint.max.y()
+        } else {
+            constraint.min.y()
+        };
+
+        (vec2f(x, y), ())
+    }
+
+    fn paint(
+        &mut self,
+        _: RectF,
+        _: RectF,
+        _: &mut Self::LayoutState,
+        _: &mut PaintContext,
+    ) -> Self::PaintState {
+    }
+
+    fn dispatch_event(
+        &mut self,
+        _: &Event,
+        _: RectF,
+        _: &mut Self::LayoutState,
+        _: &mut Self::PaintState,
+        _: &mut EventContext,
+    ) -> bool {
+        false
+    }
+
+    fn debug(
+        &self,
+        bounds: RectF,
+        _: &Self::LayoutState,
+        _: &Self::PaintState,
+        _: &DebugContext,
+    ) -> serde_json::Value {
+        json!({
+            "type": "Empty",
+            "bounds": bounds.to_json(),
+        })
+    }
+}