Refine mouse event naming

Nathan Sobo created

Change summary

crates/drag_and_drop/src/drag_and_drop.rs       |   4 
crates/gpui/src/elements/mouse_event_handler.rs |  29 -
crates/gpui/src/elements/resizable.rs           |   4 
crates/gpui/src/elements/uniform_list.rs        |   4 
crates/gpui/src/presenter.rs                    |  72 ++---
crates/gpui/src/scene.rs                        |   4 
crates/gpui/src/scene/mouse_event.rs            | 233 +++++++++++++++++++
crates/gpui/src/scene/mouse_region.rs           | 139 ++++------
crates/gpui/src/scene/mouse_region_event.rs     | 233 -------------------
crates/terminal/src/mappings/mouse.rs           |   4 
crates/terminal/src/terminal.rs                 |  20 
11 files changed, 353 insertions(+), 393 deletions(-)

Detailed changes

crates/drag_and_drop/src/drag_and_drop.rs 🔗

@@ -4,7 +4,7 @@ use collections::HashSet;
 use gpui::{
     elements::{MouseEventHandler, Overlay},
     geometry::vector::Vector2F,
-    scene::DragRegionEvent,
+    scene::MouseDrag,
     CursorStyle, Element, ElementBox, EventContext, MouseButton, MutableAppContext, RenderContext,
     View, WeakViewHandle,
 };
@@ -70,7 +70,7 @@ impl<V: View> DragAndDrop<V> {
     }
 
     pub fn dragging<T: Any>(
-        event: DragRegionEvent,
+        event: MouseDrag,
         payload: Rc<T>,
         cx: &mut EventContext,
         render: Rc<impl 'static + Fn(&T, &mut RenderContext<V>) -> ElementBox>,

crates/gpui/src/elements/mouse_event_handler.rs 🔗

@@ -6,9 +6,8 @@ use crate::{
     },
     platform::CursorStyle,
     scene::{
-        ClickRegionEvent, CursorRegion, DownOutRegionEvent, DownRegionEvent, DragRegionEvent,
-        HandlerSet, HoverRegionEvent, MoveRegionEvent, ScrollWheelRegionEvent, UpOutRegionEvent,
-        UpRegionEvent,
+        CursorRegion, HandlerSet, MouseClick, MouseDown, MouseDownOut, MouseDrag, MouseHover,
+        MouseMove, MouseScrollWheel, MouseUp, MouseUpOut,
     },
     DebugContext, Element, ElementBox, Event, EventContext, LayoutContext, MeasurementContext,
     MouseButton, MouseRegion, MouseState, PaintContext, RenderContext, SizeConstraint, View,
@@ -61,10 +60,7 @@ impl<Tag> MouseEventHandler<Tag> {
         self
     }
 
-    pub fn on_move(
-        mut self,
-        handler: impl Fn(MoveRegionEvent, &mut EventContext) + 'static,
-    ) -> Self {
+    pub fn on_move(mut self, handler: impl Fn(MouseMove, &mut EventContext) + 'static) -> Self {
         self.handlers = self.handlers.on_move(handler);
         self
     }
@@ -72,7 +68,7 @@ impl<Tag> MouseEventHandler<Tag> {
     pub fn on_down(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DownRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDown, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_down(button, handler);
         self
@@ -81,7 +77,7 @@ impl<Tag> MouseEventHandler<Tag> {
     pub fn on_up(
         mut self,
         button: MouseButton,
-        handler: impl Fn(UpRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseUp, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_up(button, handler);
         self
@@ -90,7 +86,7 @@ impl<Tag> MouseEventHandler<Tag> {
     pub fn on_click(
         mut self,
         button: MouseButton,
-        handler: impl Fn(ClickRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseClick, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_click(button, handler);
         self
@@ -99,7 +95,7 @@ impl<Tag> MouseEventHandler<Tag> {
     pub fn on_down_out(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DownOutRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDownOut, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_down_out(button, handler);
         self
@@ -108,7 +104,7 @@ impl<Tag> MouseEventHandler<Tag> {
     pub fn on_up_out(
         mut self,
         button: MouseButton,
-        handler: impl Fn(UpOutRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseUpOut, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_up_out(button, handler);
         self
@@ -117,23 +113,20 @@ impl<Tag> MouseEventHandler<Tag> {
     pub fn on_drag(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DragRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDrag, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_drag(button, handler);
         self
     }
 
-    pub fn on_hover(
-        mut self,
-        handler: impl Fn(HoverRegionEvent, &mut EventContext) + 'static,
-    ) -> Self {
+    pub fn on_hover(mut self, handler: impl Fn(MouseHover, &mut EventContext) + 'static) -> Self {
         self.handlers = self.handlers.on_hover(handler);
         self
     }
 
     pub fn on_scroll(
         mut self,
-        handler: impl Fn(ScrollWheelRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseScrollWheel, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_scroll(handler);
         self

crates/gpui/src/elements/resizable.rs 🔗

@@ -4,7 +4,7 @@ use pathfinder_geometry::vector::{vec2f, Vector2F};
 use serde_json::json;
 
 use crate::{
-    geometry::rect::RectF, scene::DragRegionEvent, Axis, CursorStyle, Element, ElementBox,
+    geometry::rect::RectF, scene::MouseDrag, Axis, CursorStyle, Element, ElementBox,
     ElementStateHandle, MouseButton, MouseRegion, RenderContext, View,
 };
 
@@ -42,7 +42,7 @@ impl Side {
         }
     }
 
-    fn compute_delta(&self, e: DragRegionEvent) -> f32 {
+    fn compute_delta(&self, e: MouseDrag) -> f32 {
         if self.before_content() {
             self.relevant_component(e.prev_mouse_position) - self.relevant_component(e.position)
         } else {

crates/gpui/src/elements/uniform_list.rs 🔗

@@ -6,7 +6,7 @@ use crate::{
     },
     json::{self, json},
     presenter::MeasurementContext,
-    scene::ScrollWheelRegionEvent,
+    scene::MouseScrollWheel,
     ElementBox, MouseRegion, RenderContext, ScrollWheelEvent, View,
 };
 use json::ToJson;
@@ -292,7 +292,7 @@ impl Element for UniformList {
             MouseRegion::new::<Self>(self.view_id, 0, visible_bounds).on_scroll({
                 let scroll_max = layout.scroll_max;
                 let state = self.state.clone();
-                move |ScrollWheelRegionEvent {
+                move |MouseScrollWheel {
                           platform_event:
                               ScrollWheelEvent {
                                   position,

crates/gpui/src/presenter.rs 🔗

@@ -7,9 +7,8 @@ use crate::{
     keymap::Keystroke,
     platform::{CursorStyle, Event},
     scene::{
-        ClickRegionEvent, CursorRegion, DownOutRegionEvent, DownRegionEvent, DragRegionEvent,
-        HoverRegionEvent, MouseRegionEvent, MoveRegionEvent, ScrollWheelRegionEvent,
-        UpOutRegionEvent, UpRegionEvent,
+        CursorRegion, MouseClick, MouseDown, MouseDownOut, MouseDrag, MouseEvent, MouseHover,
+        MouseMove, MouseScrollWheel, MouseUp, MouseUpOut,
     },
     text_layout::TextLayoutCache,
     Action, AnyModelHandle, AnyViewHandle, AnyWeakModelHandle, AnyWeakViewHandle, Appearance,
@@ -230,12 +229,12 @@ impl Presenter {
         cx: &mut MutableAppContext,
     ) -> bool {
         if let Some(root_view_id) = cx.root_view_id(self.window_id) {
-            let mut events_to_send = Vec::new();
+            let mut mouse_events = SmallVec::<[_; 2]>::new();
             let mut notified_views: HashSet<usize> = Default::default();
 
-            // 1. Allocate the correct set of GPUI events generated from the platform events
+            // 1. Map the platform event into mouse events, which interact with mouse regions.
             //  -> These are usually small: [Mouse Down] or [Mouse up, Click] or [Mouse Moved, Mouse Dragged?]
-            //  -> Also moves around mouse related state
+            //  -> Also updates mouse-related state
             match &event {
                 Event::MouseDown(e) => {
                     // Click events are weird because they can be fired after a drag event.
@@ -260,28 +259,28 @@ impl Presenter {
                         self.clicked_button = Some(e.button);
                     }
 
-                    events_to_send.push(MouseRegionEvent::Down(DownRegionEvent {
+                    mouse_events.push(MouseEvent::Down(MouseDown {
                         region: Default::default(),
                         platform_event: e.clone(),
                     }));
-                    events_to_send.push(MouseRegionEvent::DownOut(DownOutRegionEvent {
+                    mouse_events.push(MouseEvent::DownOut(MouseDownOut {
                         region: Default::default(),
                         platform_event: e.clone(),
                     }));
                 }
                 Event::MouseUp(e) => {
                     // NOTE: The order of event pushes is important! MouseUp events MUST be fired
-                    // before click events, and so the UpRegionEvent events need to be pushed before
-                    // ClickRegionEvents
-                    events_to_send.push(MouseRegionEvent::Up(UpRegionEvent {
+                    // before click events, and so the MouseUp events need to be pushed before
+                    // MouseClick events.
+                    mouse_events.push(MouseEvent::Up(MouseUp {
                         region: Default::default(),
                         platform_event: e.clone(),
                     }));
-                    events_to_send.push(MouseRegionEvent::UpOut(UpOutRegionEvent {
+                    mouse_events.push(MouseEvent::UpOut(MouseUpOut {
                         region: Default::default(),
                         platform_event: e.clone(),
                     }));
-                    events_to_send.push(MouseRegionEvent::Click(ClickRegionEvent {
+                    mouse_events.push(MouseEvent::Click(MouseClick {
                         region: Default::default(),
                         platform_event: e.clone(),
                     }));
@@ -304,7 +303,7 @@ impl Presenter {
 
                     if !event_reused {
                         if pressed_button.is_some() {
-                            events_to_send.push(MouseRegionEvent::Drag(DragRegionEvent {
+                            mouse_events.push(MouseEvent::Drag(MouseDrag {
                                 region: Default::default(),
                                 prev_mouse_position: self.mouse_position,
                                 platform_event: e.clone(),
@@ -312,27 +311,27 @@ impl Presenter {
                         } else if let Some(clicked_button) = self.clicked_button {
                             // Mouse up event happened outside the current window. Simulate mouse up button event
                             let button_event = e.to_button_event(clicked_button);
-                            events_to_send.push(MouseRegionEvent::Up(UpRegionEvent {
+                            mouse_events.push(MouseEvent::Up(MouseUp {
                                 region: Default::default(),
                                 platform_event: button_event.clone(),
                             }));
-                            events_to_send.push(MouseRegionEvent::UpOut(UpOutRegionEvent {
+                            mouse_events.push(MouseEvent::UpOut(MouseUpOut {
                                 region: Default::default(),
                                 platform_event: button_event.clone(),
                             }));
-                            events_to_send.push(MouseRegionEvent::Click(ClickRegionEvent {
+                            mouse_events.push(MouseEvent::Click(MouseClick {
                                 region: Default::default(),
                                 platform_event: button_event.clone(),
                             }));
                         }
 
-                        events_to_send.push(MouseRegionEvent::Move(MoveRegionEvent {
+                        mouse_events.push(MouseEvent::Move(MouseMove {
                             region: Default::default(),
                             platform_event: e.clone(),
                         }));
                     }
 
-                    events_to_send.push(MouseRegionEvent::Hover(HoverRegionEvent {
+                    mouse_events.push(MouseEvent::Hover(MouseHover {
                         region: Default::default(),
                         platform_event: e.clone(),
                         started: false,
@@ -341,7 +340,7 @@ impl Presenter {
                     self.last_mouse_moved_event = Some(event.clone());
                 }
                 Event::ScrollWheel(e) => {
-                    events_to_send.push(MouseRegionEvent::ScrollWheel(ScrollWheelRegionEvent {
+                    mouse_events.push(MouseEvent::ScrollWheel(MouseScrollWheel {
                         region: Default::default(),
                         platform_event: e.clone(),
                     }))
@@ -354,17 +353,16 @@ impl Presenter {
                 self.mouse_position = position;
             }
 
+            // 2. Dispatch mouse events on regions
             let mut any_event_handled = false;
-            // 2. Process the raw mouse events into region events
-            for mut region_event in events_to_send {
+            for mut mouse_event in mouse_events {
                 let mut valid_regions = Vec::new();
 
                 // GPUI elements are arranged by depth but sibling elements can register overlapping
                 // mouse regions. As such, hover events are only fired on overlapping elements which
                 // are at the same depth as the topmost element which overlaps with the mouse.
-
-                match &region_event {
-                    MouseRegionEvent::Hover(_) => {
+                match &mouse_event {
+                    MouseEvent::Hover(_) => {
                         let mut top_most_depth = None;
                         let mouse_position = self.mouse_position.clone();
                         for (region, depth) in self.mouse_regions.iter().rev() {
@@ -402,7 +400,7 @@ impl Presenter {
                             }
                         }
                     }
-                    MouseRegionEvent::Down(_) | MouseRegionEvent::Up(_) => {
+                    MouseEvent::Down(_) | MouseEvent::Up(_) => {
                         for (region, _) in self.mouse_regions.iter().rev() {
                             if region.bounds.contains_point(self.mouse_position) {
                                 if region.notify_on_click {
@@ -412,7 +410,7 @@ impl Presenter {
                             }
                         }
                     }
-                    MouseRegionEvent::Click(e) => {
+                    MouseEvent::Click(e) => {
                         // Only raise click events if the released button is the same as the one stored
                         if self
                             .clicked_button
@@ -434,7 +432,7 @@ impl Presenter {
                             }
                         }
                     }
-                    MouseRegionEvent::Drag(_) => {
+                    MouseEvent::Drag(_) => {
                         for (mouse_region, _) in self.mouse_regions.iter().rev() {
                             if self.clicked_region_ids.contains(&mouse_region.id()) {
                                 valid_regions.push(mouse_region.clone());
@@ -442,7 +440,7 @@ impl Presenter {
                         }
                     }
 
-                    MouseRegionEvent::UpOut(_) | MouseRegionEvent::DownOut(_) => {
+                    MouseEvent::UpOut(_) | MouseEvent::DownOut(_) => {
                         for (mouse_region, _) in self.mouse_regions.iter().rev() {
                             // NOT contains
                             if !mouse_region.bounds.contains_point(self.mouse_position) {
@@ -465,29 +463,29 @@ impl Presenter {
                 for valid_region in valid_regions.into_iter() {
                     let mut event_cx = self.build_event_context(&mut notified_views, cx);
 
-                    region_event.set_region(valid_region.bounds);
-                    if let MouseRegionEvent::Hover(e) = &mut region_event {
+                    mouse_event.set_region(valid_region.bounds);
+                    if let MouseEvent::Hover(e) = &mut mouse_event {
                         e.started = hovered_region_ids.contains(&valid_region.id())
                     }
                     // Handle Down events if the MouseRegion has a Click or Drag handler. This makes the api more intuitive as you would
                     // not expect a MouseRegion to be transparent to Down events if it also has a Click handler.
                     // This behavior can be overridden by adding a Down handler that calls cx.propogate_event
-                    if let MouseRegionEvent::Down(e) = &region_event {
+                    if let MouseEvent::Down(e) = &mouse_event {
                         if valid_region
                             .handlers
-                            .contains_handler(MouseRegionEvent::click_disc(), Some(e.button))
+                            .contains_handler(MouseEvent::click_disc(), Some(e.button))
                             || valid_region
                                 .handlers
-                                .contains_handler(MouseRegionEvent::drag_disc(), Some(e.button))
+                                .contains_handler(MouseEvent::drag_disc(), Some(e.button))
                         {
                             event_cx.handled = true;
                         }
                     }
 
-                    if let Some(callback) = valid_region.handlers.get(&region_event.handler_key()) {
+                    if let Some(callback) = valid_region.handlers.get(&mouse_event.handler_key()) {
                         event_cx.handled = true;
                         event_cx.with_current_view(valid_region.id().view_id(), {
-                            let region_event = region_event.clone();
+                            let region_event = mouse_event.clone();
                             |cx| {
                                 callback(region_event, cx);
                             }
@@ -497,7 +495,7 @@ impl Presenter {
                     any_event_handled = any_event_handled || event_cx.handled;
                     // For bubbling events, if the event was handled, don't continue dispatching
                     // This only makes sense for local events.
-                    if event_cx.handled && region_event.is_capturable() {
+                    if event_cx.handled && mouse_event.is_capturable() {
                         break;
                     }
                 }

crates/gpui/src/scene.rs 🔗

@@ -1,5 +1,5 @@
+mod mouse_event;
 mod mouse_region;
-mod mouse_region_event;
 
 #[cfg(debug_assertions)]
 use collections::HashSet;
@@ -15,8 +15,8 @@ use crate::{
     platform::{current::Surface, CursorStyle},
     ImageData,
 };
+pub use mouse_event::*;
 pub use mouse_region::*;
-pub use mouse_region_event::*;
 
 pub struct Scene {
     scale_factor: f32,

crates/gpui/src/scene/mouse_event.rs 🔗

@@ -0,0 +1,233 @@
+use std::{
+    mem::{discriminant, Discriminant},
+    ops::Deref,
+};
+
+use pathfinder_geometry::{rect::RectF, vector::Vector2F};
+
+use crate::{MouseButton, MouseButtonEvent, MouseMovedEvent, ScrollWheelEvent};
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseMove {
+    pub region: RectF,
+    pub platform_event: MouseMovedEvent,
+}
+
+impl Deref for MouseMove {
+    type Target = MouseMovedEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseDrag {
+    pub region: RectF,
+    pub prev_mouse_position: Vector2F,
+    pub platform_event: MouseMovedEvent,
+}
+
+impl Deref for MouseDrag {
+    type Target = MouseMovedEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseHover {
+    pub region: RectF,
+    pub started: bool,
+    pub platform_event: MouseMovedEvent,
+}
+
+impl Deref for MouseHover {
+    type Target = MouseMovedEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseDown {
+    pub region: RectF,
+    pub platform_event: MouseButtonEvent,
+}
+
+impl Deref for MouseDown {
+    type Target = MouseButtonEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseUp {
+    pub region: RectF,
+    pub platform_event: MouseButtonEvent,
+}
+
+impl Deref for MouseUp {
+    type Target = MouseButtonEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseClick {
+    pub region: RectF,
+    pub platform_event: MouseButtonEvent,
+}
+
+impl Deref for MouseClick {
+    type Target = MouseButtonEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseDownOut {
+    pub region: RectF,
+    pub platform_event: MouseButtonEvent,
+}
+
+impl Deref for MouseDownOut {
+    type Target = MouseButtonEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseUpOut {
+    pub region: RectF,
+    pub platform_event: MouseButtonEvent,
+}
+
+impl Deref for MouseUpOut {
+    type Target = MouseButtonEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct MouseScrollWheel {
+    pub region: RectF,
+    pub platform_event: ScrollWheelEvent,
+}
+
+impl Deref for MouseScrollWheel {
+    type Target = ScrollWheelEvent;
+
+    fn deref(&self) -> &Self::Target {
+        &self.platform_event
+    }
+}
+
+#[derive(Debug, Clone)]
+pub enum MouseEvent {
+    Move(MouseMove),
+    Drag(MouseDrag),
+    Hover(MouseHover),
+    Down(MouseDown),
+    Up(MouseUp),
+    Click(MouseClick),
+    DownOut(MouseDownOut),
+    UpOut(MouseUpOut),
+    ScrollWheel(MouseScrollWheel),
+}
+
+impl MouseEvent {
+    pub fn set_region(&mut self, region: RectF) {
+        match self {
+            MouseEvent::Move(r) => r.region = region,
+            MouseEvent::Drag(r) => r.region = region,
+            MouseEvent::Hover(r) => r.region = region,
+            MouseEvent::Down(r) => r.region = region,
+            MouseEvent::Up(r) => r.region = region,
+            MouseEvent::Click(r) => r.region = region,
+            MouseEvent::DownOut(r) => r.region = region,
+            MouseEvent::UpOut(r) => r.region = region,
+            MouseEvent::ScrollWheel(r) => r.region = region,
+        }
+    }
+
+    /// When true, mouse event handlers must call cx.propagate_event() to bubble
+    /// the event to handlers they are painted on top of.
+    pub fn is_capturable(&self) -> bool {
+        match self {
+            MouseEvent::Move(_) => true,
+            MouseEvent::Drag(_) => true,
+            MouseEvent::Hover(_) => false,
+            MouseEvent::Down(_) => true,
+            MouseEvent::Up(_) => true,
+            MouseEvent::Click(_) => true,
+            MouseEvent::DownOut(_) => false,
+            MouseEvent::UpOut(_) => false,
+            MouseEvent::ScrollWheel(_) => true,
+        }
+    }
+}
+
+impl MouseEvent {
+    pub fn move_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::Move(Default::default()))
+    }
+
+    pub fn drag_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::Drag(Default::default()))
+    }
+
+    pub fn hover_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::Hover(Default::default()))
+    }
+
+    pub fn down_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::Down(Default::default()))
+    }
+
+    pub fn up_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::Up(Default::default()))
+    }
+
+    pub fn up_out_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::UpOut(Default::default()))
+    }
+
+    pub fn click_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::Click(Default::default()))
+    }
+
+    pub fn down_out_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::DownOut(Default::default()))
+    }
+
+    pub fn scroll_wheel_disc() -> Discriminant<MouseEvent> {
+        discriminant(&MouseEvent::ScrollWheel(Default::default()))
+    }
+
+    pub fn handler_key(&self) -> (Discriminant<MouseEvent>, Option<MouseButton>) {
+        match self {
+            MouseEvent::Move(_) => (Self::move_disc(), None),
+            MouseEvent::Drag(e) => (Self::drag_disc(), e.pressed_button),
+            MouseEvent::Hover(_) => (Self::hover_disc(), None),
+            MouseEvent::Down(e) => (Self::down_disc(), Some(e.button)),
+            MouseEvent::Up(e) => (Self::up_disc(), Some(e.button)),
+            MouseEvent::Click(e) => (Self::click_disc(), Some(e.button)),
+            MouseEvent::UpOut(e) => (Self::up_out_disc(), Some(e.button)),
+            MouseEvent::DownOut(e) => (Self::down_out_disc(), Some(e.button)),
+            MouseEvent::ScrollWheel(_) => (Self::scroll_wheel_disc(), None),
+        }
+    }
+}

crates/gpui/src/scene/mouse_region.rs 🔗

@@ -7,11 +7,11 @@ use pathfinder_geometry::rect::RectF;
 use crate::{EventContext, MouseButton};
 
 use super::{
-    mouse_region_event::{
-        ClickRegionEvent, DownOutRegionEvent, DownRegionEvent, DragRegionEvent, HoverRegionEvent,
-        MouseRegionEvent, MoveRegionEvent, UpOutRegionEvent, UpRegionEvent,
+    mouse_event::{
+        MouseClick, MouseDown, MouseDownOut, MouseDrag, MouseEvent, MouseHover, MouseMove, MouseUp,
+        MouseUpOut,
     },
-    ScrollWheelRegionEvent,
+    MouseScrollWheel,
 };
 
 #[derive(Clone)]
@@ -62,7 +62,7 @@ impl MouseRegion {
     pub fn on_down(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DownRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDown, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_down(button, handler);
         self
@@ -71,7 +71,7 @@ impl MouseRegion {
     pub fn on_up(
         mut self,
         button: MouseButton,
-        handler: impl Fn(UpRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseUp, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_up(button, handler);
         self
@@ -80,7 +80,7 @@ impl MouseRegion {
     pub fn on_click(
         mut self,
         button: MouseButton,
-        handler: impl Fn(ClickRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseClick, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_click(button, handler);
         self
@@ -89,7 +89,7 @@ impl MouseRegion {
     pub fn on_down_out(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DownOutRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDownOut, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_down_out(button, handler);
         self
@@ -98,7 +98,7 @@ impl MouseRegion {
     pub fn on_up_out(
         mut self,
         button: MouseButton,
-        handler: impl Fn(UpOutRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseUpOut, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_up_out(button, handler);
         self
@@ -107,31 +107,25 @@ impl MouseRegion {
     pub fn on_drag(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DragRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDrag, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_drag(button, handler);
         self
     }
 
-    pub fn on_hover(
-        mut self,
-        handler: impl Fn(HoverRegionEvent, &mut EventContext) + 'static,
-    ) -> Self {
+    pub fn on_hover(mut self, handler: impl Fn(MouseHover, &mut EventContext) + 'static) -> Self {
         self.handlers = self.handlers.on_hover(handler);
         self
     }
 
-    pub fn on_move(
-        mut self,
-        handler: impl Fn(MoveRegionEvent, &mut EventContext) + 'static,
-    ) -> Self {
+    pub fn on_move(mut self, handler: impl Fn(MouseMove, &mut EventContext) + 'static) -> Self {
         self.handlers = self.handlers.on_move(handler);
         self
     }
 
     pub fn on_scroll(
         mut self,
-        handler: impl Fn(ScrollWheelRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseScrollWheel, &mut EventContext) + 'static,
     ) -> Self {
         self.handlers = self.handlers.on_scroll(handler);
         self
@@ -187,8 +181,8 @@ impl MouseRegionId {
 pub struct HandlerSet {
     #[allow(clippy::type_complexity)]
     pub set: HashMap<
-        (Discriminant<MouseRegionEvent>, Option<MouseButton>),
-        Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>,
+        (Discriminant<MouseEvent>, Option<MouseButton>),
+        Rc<dyn Fn(MouseEvent, &mut EventContext)>,
     >,
 }
 
@@ -196,68 +190,50 @@ impl HandlerSet {
     pub fn capture_all() -> Self {
         #[allow(clippy::type_complexity)]
         let mut set: HashMap<
-            (Discriminant<MouseRegionEvent>, Option<MouseButton>),
-            Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>,
+            (Discriminant<MouseEvent>, Option<MouseButton>),
+            Rc<dyn Fn(MouseEvent, &mut EventContext)>,
         > = Default::default();
 
-        set.insert((MouseRegionEvent::move_disc(), None), Rc::new(|_, _| {}));
-        set.insert((MouseRegionEvent::hover_disc(), None), Rc::new(|_, _| {}));
+        set.insert((MouseEvent::move_disc(), None), Rc::new(|_, _| {}));
+        set.insert((MouseEvent::hover_disc(), None), Rc::new(|_, _| {}));
         for button in MouseButton::all() {
+            set.insert((MouseEvent::drag_disc(), Some(button)), Rc::new(|_, _| {}));
+            set.insert((MouseEvent::down_disc(), Some(button)), Rc::new(|_, _| {}));
+            set.insert((MouseEvent::up_disc(), Some(button)), Rc::new(|_, _| {}));
+            set.insert((MouseEvent::click_disc(), Some(button)), Rc::new(|_, _| {}));
             set.insert(
-                (MouseRegionEvent::drag_disc(), Some(button)),
-                Rc::new(|_, _| {}),
-            );
-            set.insert(
-                (MouseRegionEvent::down_disc(), Some(button)),
-                Rc::new(|_, _| {}),
-            );
-            set.insert(
-                (MouseRegionEvent::up_disc(), Some(button)),
+                (MouseEvent::down_out_disc(), Some(button)),
                 Rc::new(|_, _| {}),
             );
             set.insert(
-                (MouseRegionEvent::click_disc(), Some(button)),
-                Rc::new(|_, _| {}),
-            );
-            set.insert(
-                (MouseRegionEvent::down_out_disc(), Some(button)),
-                Rc::new(|_, _| {}),
-            );
-            set.insert(
-                (MouseRegionEvent::up_out_disc(), Some(button)),
+                (MouseEvent::up_out_disc(), Some(button)),
                 Rc::new(|_, _| {}),
             );
         }
-        set.insert(
-            (MouseRegionEvent::scroll_wheel_disc(), None),
-            Rc::new(|_, _| {}),
-        );
+        set.insert((MouseEvent::scroll_wheel_disc(), None), Rc::new(|_, _| {}));
 
         HandlerSet { set }
     }
 
     pub fn get(
         &self,
-        key: &(Discriminant<MouseRegionEvent>, Option<MouseButton>),
-    ) -> Option<Rc<dyn Fn(MouseRegionEvent, &mut EventContext)>> {
+        key: &(Discriminant<MouseEvent>, Option<MouseButton>),
+    ) -> Option<Rc<dyn Fn(MouseEvent, &mut EventContext)>> {
         self.set.get(key).cloned()
     }
 
     pub fn contains_handler(
         &self,
-        event: Discriminant<MouseRegionEvent>,
+        event: Discriminant<MouseEvent>,
         button: Option<MouseButton>,
     ) -> bool {
         self.set.contains_key(&(event, button))
     }
 
-    pub fn on_move(
-        mut self,
-        handler: impl Fn(MoveRegionEvent, &mut EventContext) + 'static,
-    ) -> Self {
-        self.set.insert((MouseRegionEvent::move_disc(), None),
+    pub fn on_move(mut self, handler: impl Fn(MouseMove, &mut EventContext) + 'static) -> Self {
+        self.set.insert((MouseEvent::move_disc(), None),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::Move(e) = region_event {
+                if let MouseEvent::Move(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -271,11 +247,11 @@ impl HandlerSet {
     pub fn on_down(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DownRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDown, &mut EventContext) + 'static,
     ) -> Self {
-        self.set.insert((MouseRegionEvent::down_disc(), Some(button)),
+        self.set.insert((MouseEvent::down_disc(), Some(button)),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::Down(e) = region_event {
+                if let MouseEvent::Down(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -289,11 +265,11 @@ impl HandlerSet {
     pub fn on_up(
         mut self,
         button: MouseButton,
-        handler: impl Fn(UpRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseUp, &mut EventContext) + 'static,
     ) -> Self {
-        self.set.insert((MouseRegionEvent::up_disc(), Some(button)),
+        self.set.insert((MouseEvent::up_disc(), Some(button)),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::Up(e) = region_event {
+                if let MouseEvent::Up(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -307,11 +283,11 @@ impl HandlerSet {
     pub fn on_click(
         mut self,
         button: MouseButton,
-        handler: impl Fn(ClickRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseClick, &mut EventContext) + 'static,
     ) -> Self {
-        self.set.insert((MouseRegionEvent::click_disc(), Some(button)),
+        self.set.insert((MouseEvent::click_disc(), Some(button)),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::Click(e) = region_event {
+                if let MouseEvent::Click(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -325,11 +301,11 @@ impl HandlerSet {
     pub fn on_down_out(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DownOutRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDownOut, &mut EventContext) + 'static,
     ) -> Self {
-        self.set.insert((MouseRegionEvent::down_out_disc(), Some(button)),
+        self.set.insert((MouseEvent::down_out_disc(), Some(button)),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::DownOut(e) = region_event {
+                if let MouseEvent::DownOut(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -343,11 +319,11 @@ impl HandlerSet {
     pub fn on_up_out(
         mut self,
         button: MouseButton,
-        handler: impl Fn(UpOutRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseUpOut, &mut EventContext) + 'static,
     ) -> Self {
-        self.set.insert((MouseRegionEvent::up_out_disc(), Some(button)),
+        self.set.insert((MouseEvent::up_out_disc(), Some(button)),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::UpOut(e) = region_event {
+                if let MouseEvent::UpOut(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -361,11 +337,11 @@ impl HandlerSet {
     pub fn on_drag(
         mut self,
         button: MouseButton,
-        handler: impl Fn(DragRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseDrag, &mut EventContext) + 'static,
     ) -> Self {
-        self.set.insert((MouseRegionEvent::drag_disc(), Some(button)),
+        self.set.insert((MouseEvent::drag_disc(), Some(button)),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::Drag(e) = region_event {
+                if let MouseEvent::Drag(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -376,13 +352,10 @@ impl HandlerSet {
         self
     }
 
-    pub fn on_hover(
-        mut self,
-        handler: impl Fn(HoverRegionEvent, &mut EventContext) + 'static,
-    ) -> Self {
-        self.set.insert((MouseRegionEvent::hover_disc(), None),
+    pub fn on_hover(mut self, handler: impl Fn(MouseHover, &mut EventContext) + 'static) -> Self {
+        self.set.insert((MouseEvent::hover_disc(), None),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::Hover(e) = region_event {
+                if let MouseEvent::Hover(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(
@@ -395,11 +368,11 @@ impl HandlerSet {
 
     pub fn on_scroll(
         mut self,
-        handler: impl Fn(ScrollWheelRegionEvent, &mut EventContext) + 'static,
+        handler: impl Fn(MouseScrollWheel, &mut EventContext) + 'static,
     ) -> Self {
-        self.set.insert((MouseRegionEvent::scroll_wheel_disc(), None),
+        self.set.insert((MouseEvent::scroll_wheel_disc(), None),
             Rc::new(move |region_event, cx| {
-                if let MouseRegionEvent::ScrollWheel(e) = region_event {
+                if let MouseEvent::ScrollWheel(e) = region_event {
                     handler(e, cx);
                 } else {
                     panic!(

crates/gpui/src/scene/mouse_region_event.rs 🔗

@@ -1,233 +0,0 @@
-use std::{
-    mem::{discriminant, Discriminant},
-    ops::Deref,
-};
-
-use pathfinder_geometry::{rect::RectF, vector::Vector2F};
-
-use crate::{MouseButton, MouseButtonEvent, MouseMovedEvent, ScrollWheelEvent};
-
-#[derive(Debug, Default, Clone)]
-pub struct MoveRegionEvent {
-    pub region: RectF,
-    pub platform_event: MouseMovedEvent,
-}
-
-impl Deref for MoveRegionEvent {
-    type Target = MouseMovedEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct DragRegionEvent {
-    pub region: RectF,
-    pub prev_mouse_position: Vector2F,
-    pub platform_event: MouseMovedEvent,
-}
-
-impl Deref for DragRegionEvent {
-    type Target = MouseMovedEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct HoverRegionEvent {
-    pub region: RectF,
-    pub started: bool,
-    pub platform_event: MouseMovedEvent,
-}
-
-impl Deref for HoverRegionEvent {
-    type Target = MouseMovedEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct DownRegionEvent {
-    pub region: RectF,
-    pub platform_event: MouseButtonEvent,
-}
-
-impl Deref for DownRegionEvent {
-    type Target = MouseButtonEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct UpRegionEvent {
-    pub region: RectF,
-    pub platform_event: MouseButtonEvent,
-}
-
-impl Deref for UpRegionEvent {
-    type Target = MouseButtonEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct ClickRegionEvent {
-    pub region: RectF,
-    pub platform_event: MouseButtonEvent,
-}
-
-impl Deref for ClickRegionEvent {
-    type Target = MouseButtonEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct DownOutRegionEvent {
-    pub region: RectF,
-    pub platform_event: MouseButtonEvent,
-}
-
-impl Deref for DownOutRegionEvent {
-    type Target = MouseButtonEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct UpOutRegionEvent {
-    pub region: RectF,
-    pub platform_event: MouseButtonEvent,
-}
-
-impl Deref for UpOutRegionEvent {
-    type Target = MouseButtonEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct ScrollWheelRegionEvent {
-    pub region: RectF,
-    pub platform_event: ScrollWheelEvent,
-}
-
-impl Deref for ScrollWheelRegionEvent {
-    type Target = ScrollWheelEvent;
-
-    fn deref(&self) -> &Self::Target {
-        &self.platform_event
-    }
-}
-
-#[derive(Debug, Clone)]
-pub enum MouseRegionEvent {
-    Move(MoveRegionEvent),
-    Drag(DragRegionEvent),
-    Hover(HoverRegionEvent),
-    Down(DownRegionEvent),
-    Up(UpRegionEvent),
-    Click(ClickRegionEvent),
-    DownOut(DownOutRegionEvent),
-    UpOut(UpOutRegionEvent),
-    ScrollWheel(ScrollWheelRegionEvent),
-}
-
-impl MouseRegionEvent {
-    pub fn set_region(&mut self, region: RectF) {
-        match self {
-            MouseRegionEvent::Move(r) => r.region = region,
-            MouseRegionEvent::Drag(r) => r.region = region,
-            MouseRegionEvent::Hover(r) => r.region = region,
-            MouseRegionEvent::Down(r) => r.region = region,
-            MouseRegionEvent::Up(r) => r.region = region,
-            MouseRegionEvent::Click(r) => r.region = region,
-            MouseRegionEvent::DownOut(r) => r.region = region,
-            MouseRegionEvent::UpOut(r) => r.region = region,
-            MouseRegionEvent::ScrollWheel(r) => r.region = region,
-        }
-    }
-
-    /// When true, mouse event handlers must call cx.propagate_event() to bubble
-    /// the event to handlers they are painted on top of.
-    pub fn is_capturable(&self) -> bool {
-        match self {
-            MouseRegionEvent::Move(_) => true,
-            MouseRegionEvent::Drag(_) => true,
-            MouseRegionEvent::Hover(_) => false,
-            MouseRegionEvent::Down(_) => true,
-            MouseRegionEvent::Up(_) => true,
-            MouseRegionEvent::Click(_) => true,
-            MouseRegionEvent::DownOut(_) => false,
-            MouseRegionEvent::UpOut(_) => false,
-            MouseRegionEvent::ScrollWheel(_) => true,
-        }
-    }
-}
-
-impl MouseRegionEvent {
-    pub fn move_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::Move(Default::default()))
-    }
-
-    pub fn drag_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::Drag(Default::default()))
-    }
-
-    pub fn hover_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::Hover(Default::default()))
-    }
-
-    pub fn down_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::Down(Default::default()))
-    }
-
-    pub fn up_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::Up(Default::default()))
-    }
-
-    pub fn up_out_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::UpOut(Default::default()))
-    }
-
-    pub fn click_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::Click(Default::default()))
-    }
-
-    pub fn down_out_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::DownOut(Default::default()))
-    }
-
-    pub fn scroll_wheel_disc() -> Discriminant<MouseRegionEvent> {
-        discriminant(&MouseRegionEvent::ScrollWheel(Default::default()))
-    }
-
-    pub fn handler_key(&self) -> (Discriminant<MouseRegionEvent>, Option<MouseButton>) {
-        match self {
-            MouseRegionEvent::Move(_) => (Self::move_disc(), None),
-            MouseRegionEvent::Drag(e) => (Self::drag_disc(), e.pressed_button),
-            MouseRegionEvent::Hover(_) => (Self::hover_disc(), None),
-            MouseRegionEvent::Down(e) => (Self::down_disc(), Some(e.button)),
-            MouseRegionEvent::Up(e) => (Self::up_disc(), Some(e.button)),
-            MouseRegionEvent::Click(e) => (Self::click_disc(), Some(e.button)),
-            MouseRegionEvent::UpOut(e) => (Self::up_out_disc(), Some(e.button)),
-            MouseRegionEvent::DownOut(e) => (Self::down_out_disc(), Some(e.button)),
-            MouseRegionEvent::ScrollWheel(_) => (Self::scroll_wheel_disc(), None),
-        }
-    }
-}

crates/terminal/src/mappings/mouse.rs 🔗

@@ -6,7 +6,7 @@ use alacritty_terminal::grid::Dimensions;
 /// with modifications for our circumstances
 use alacritty_terminal::index::{Column as GridCol, Line as GridLine, Point, Side};
 use alacritty_terminal::term::TermMode;
-use gpui::scene::ScrollWheelRegionEvent;
+use gpui::scene::MouseScrollWheel;
 use gpui::{geometry::vector::Vector2F, MouseButtonEvent, MouseMovedEvent, ScrollWheelEvent};
 
 use crate::TerminalSize;
@@ -115,7 +115,7 @@ impl MouseButton {
 pub fn scroll_report(
     point: Point,
     scroll_lines: i32,
-    e: &ScrollWheelRegionEvent,
+    e: &MouseScrollWheel,
     mode: TermMode,
 ) -> Option<impl Iterator<Item = Vec<u8>>> {
     if mode.intersects(TermMode::MOUSE_MODE) {

crates/terminal/src/terminal.rs 🔗

@@ -53,7 +53,7 @@ use thiserror::Error;
 use gpui::{
     geometry::vector::{vec2f, Vector2F},
     keymap::Keystroke,
-    scene::{DownRegionEvent, DragRegionEvent, ScrollWheelRegionEvent, UpRegionEvent},
+    scene::{MouseDown, MouseDrag, MouseScrollWheel, MouseUp},
     ClipboardItem, Entity, ModelContext, MouseButton, MouseMovedEvent, MutableAppContext, Task,
 };
 
@@ -971,7 +971,7 @@ impl Terminal {
         }
     }
 
-    pub fn mouse_drag(&mut self, e: DragRegionEvent, origin: Vector2F) {
+    pub fn mouse_drag(&mut self, e: MouseDrag, origin: Vector2F) {
         let position = e.position.sub(origin);
         self.last_mouse_position = Some(position);
 
@@ -997,7 +997,7 @@ impl Terminal {
         }
     }
 
-    fn drag_line_delta(&mut self, e: DragRegionEvent) -> Option<f32> {
+    fn drag_line_delta(&mut self, e: MouseDrag) -> Option<f32> {
         //TODO: Why do these need to be doubled? Probably the same problem that the IME has
         let top = e.region.origin_y() + (self.last_content.size.line_height * 2.);
         let bottom = e.region.lower_left().y() - (self.last_content.size.line_height * 2.);
@@ -1011,7 +1011,7 @@ impl Terminal {
         Some(scroll_delta)
     }
 
-    pub fn mouse_down(&mut self, e: &DownRegionEvent, origin: Vector2F) {
+    pub fn mouse_down(&mut self, e: &MouseDown, origin: Vector2F) {
         let position = e.position.sub(origin);
         let point = grid_point(
             position,
@@ -1029,7 +1029,7 @@ impl Terminal {
         }
     }
 
-    pub fn left_click(&mut self, e: &DownRegionEvent, origin: Vector2F) {
+    pub fn left_click(&mut self, e: &MouseDown, origin: Vector2F) {
         let position = e.position.sub(origin);
         if !self.mouse_mode(e.shift) {
             //Hyperlinks
@@ -1071,7 +1071,7 @@ impl Terminal {
         }
     }
 
-    pub fn mouse_up(&mut self, e: &UpRegionEvent, origin: Vector2F, cx: &mut ModelContext<Self>) {
+    pub fn mouse_up(&mut self, e: &MouseUp, origin: Vector2F, cx: &mut ModelContext<Self>) {
         let settings = cx.global::<Settings>();
         let copy_on_select = settings
             .terminal_overrides
@@ -1103,7 +1103,7 @@ impl Terminal {
     }
 
     ///Scroll the terminal
-    pub fn scroll_wheel(&mut self, e: ScrollWheelRegionEvent, origin: Vector2F) {
+    pub fn scroll_wheel(&mut self, e: MouseScrollWheel, origin: Vector2F) {
         let mouse_mode = self.mouse_mode(e.shift);
 
         if let Some(scroll_lines) = self.determine_scroll_lines(&e, mouse_mode) {
@@ -1142,11 +1142,7 @@ impl Terminal {
         self.hyperlink_from_position(self.last_mouse_position);
     }
 
-    fn determine_scroll_lines(
-        &mut self,
-        e: &ScrollWheelRegionEvent,
-        mouse_mode: bool,
-    ) -> Option<i32> {
+    fn determine_scroll_lines(&mut self, e: &MouseScrollWheel, mouse_mode: bool) -> Option<i32> {
         let scroll_multiplier = if mouse_mode { 1. } else { SCROLL_MULTIPLIER };
 
         match e.phase {