Update mouse position during file drag and drop

crates/gpui2/src/window.rs

@@ -1,7 +1,7 @@
 use crate::{
     px, size, Action, AnyBox, AnyDrag, AnyView, AppContext, AsyncWindowContext, AvailableSpace,
-    Bounds, BoxShadow, Context, Corners, DevicePixels, DispatchContext, DisplayId, ExternalPaths,
-    Edges, Effect, Element, EntityId, EventEmitter, FileDropEvent, FocusEvent, FontId,
+    Bounds, BoxShadow, Context, Corners, DevicePixels, DispatchContext, DisplayId, Edges, Effect,
+    Element, EntityId, EventEmitter, ExternalPaths, FileDropEvent, FocusEvent, FontId,
     GlobalElementId, GlyphId, Handle, Hsla, ImageData, InputEvent, IsZero, KeyListener, KeyMatch,
     KeyMatcher, Keystroke, LayoutId, MainThread, MainThreadOnly, Modifiers, MonochromeSprite,
     MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, Path, Pixels, PlatformAtlas,
@@ -899,6 +899,7 @@ impl<'a, 'w> WindowContext<'a, 'w> {
             }
             InputEvent::FileDrop(file_drop) => match file_drop {
                 FileDropEvent::Entered { position, files } => {
+                    self.window.mouse_position = position;
                     self.active_drag.get_or_insert_with(|| AnyDrag {
                         drag_handle_view: None,
                         cursor_offset: position,
@@ -912,17 +913,23 @@ impl<'a, 'w> WindowContext<'a, 'w> {
                         modifiers: Modifiers::default(),
                     })
                 }
-                FileDropEvent::Pending { position } => InputEvent::MouseMove(MouseMoveEvent {
-                    position,
-                    pressed_button: Some(MouseButton::Left),
-                    modifiers: Modifiers::default(),
-                }),
-                FileDropEvent::Submit { position } => InputEvent::MouseUp(MouseUpEvent {
-                    button: MouseButton::Left,
-                    position,
-                    modifiers: Modifiers::default(),
-                    click_count: 1,
-                }),
+                FileDropEvent::Pending { position } => {
+                    self.window.mouse_position = position;
+                    InputEvent::MouseMove(MouseMoveEvent {
+                        position,
+                        pressed_button: Some(MouseButton::Left),
+                        modifiers: Modifiers::default(),
+                    })
+                }
+                FileDropEvent::Submit { position } => {
+                    self.window.mouse_position = position;
+                    InputEvent::MouseUp(MouseUpEvent {
+                        button: MouseButton::Left,
+                        position,
+                        modifiers: Modifiers::default(),
+                        click_count: 1,
+                    })
+                }
                 FileDropEvent::Exited => InputEvent::MouseUp(MouseUpEvent {
                     button: MouseButton::Left,
                     position: Point::default(),

crates/ui2/src/components/panes.rs

@@ -56,7 +56,6 @@ impl<S: 'static + Send + Sync> Pane<S> {
                     .children(self.children.drain(..)),
             )
             .child(
-                // TODO kb! Figure out why we can't we see the red background when we drag a file over this div.
                 div()
                     .z_index(1)
                     .id("drag-target")