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Add mouse down out handlers

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These will fire whenever the left/right mouse button is pressed down outside a specific region. I'll use these to cancel the context menu in the next commit.
This commit is contained in:
Nathan Sobo 2022-05-27 12:56:44 -06:00
parent 9909fc529b
commit 44c8ee5709
3 changed files with 52 additions and 29 deletions
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46
crates/gpui/src/elements/mouse_event_handler.rs
View File

@ -18,11 +18,13 @@ pub struct MouseEventHandler {
tag: TypeId,
id: usize,
cursor_style: Option<CursorStyle>,
mouse_down_handler: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
click_handler: Option<Rc<dyn Fn(Vector2F, usize, &mut EventContext)>>,
right_mouse_down_handler: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
right_click_handler: Option<Rc<dyn Fn(Vector2F, usize, &mut EventContext)>>,
drag_handler: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
mouse_down: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
click: Option<Rc<dyn Fn(Vector2F, usize, &mut EventContext)>>,
right_mouse_down: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
right_click: Option<Rc<dyn Fn(Vector2F, usize, &mut EventContext)>>,
mouse_down_out: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
right_mouse_down_out: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
drag: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
padding: Padding,
}
@ -38,11 +40,13 @@ impl MouseEventHandler {
tag: TypeId::of::<Tag>(),
child: render_child(cx.mouse_state::<Tag>(id), cx),
cursor_style: None,
mouse_down_handler: None,
click_handler: None,
right_mouse_down_handler: None,
right_click_handler: None,
drag_handler: None,
mouse_down: None,
click: None,
right_mouse_down: None,
right_click: None,
mouse_down_out: None,
right_mouse_down_out: None,
drag: None,
padding: Default::default(),
}
}
@ -56,7 +60,7 @@ impl MouseEventHandler {
mut self,
handler: impl Fn(Vector2F, &mut EventContext) + 'static,
) -> Self {
self.mouse_down_handler = Some(Rc::new(handler));
self.mouse_down = Some(Rc::new(handler));
self
}
@ -64,7 +68,7 @@ impl MouseEventHandler {
mut self,
handler: impl Fn(Vector2F, usize, &mut EventContext) + 'static,
) -> Self {
self.click_handler = Some(Rc::new(handler));
self.click = Some(Rc::new(handler));
self
}
@ -72,7 +76,7 @@ impl MouseEventHandler {
mut self,
handler: impl Fn(Vector2F, &mut EventContext) + 'static,
) -> Self {
self.right_mouse_down_handler = Some(Rc::new(handler));
self.right_mouse_down = Some(Rc::new(handler));
self
}
@ -80,12 +84,12 @@ impl MouseEventHandler {
mut self,
handler: impl Fn(Vector2F, usize, &mut EventContext) + 'static,
) -> Self {
self.right_click_handler = Some(Rc::new(handler));
self.right_click = Some(Rc::new(handler));
self
}
pub fn on_drag(mut self, handler: impl Fn(Vector2F, &mut EventContext) + 'static) -> Self {
self.drag_handler = Some(Rc::new(handler));
self.drag = Some(Rc::new(handler));
self
}
@ -134,11 +138,13 @@ impl Element for MouseEventHandler {
discriminant: Some((self.tag, self.id)),
bounds: self.hit_bounds(bounds),
hover: None,
click: self.click_handler.clone(),
mouse_down: self.mouse_down_handler.clone(),
right_click: self.right_click_handler.clone(),
right_mouse_down: self.right_mouse_down_handler.clone(),
drag: self.drag_handler.clone(),
click: self.click.clone(),
mouse_down: self.mouse_down.clone(),
right_click: self.right_click.clone(),
right_mouse_down: self.right_mouse_down.clone(),
mouse_down_out: self.mouse_down_out.clone(),
right_mouse_down_out: self.right_mouse_down_out.clone(),
drag: self.drag.clone(),
});
self.child.paint(bounds.origin(), visible_bounds, cx);

33
crates/gpui/src/presenter.rs
View File

@ -222,6 +222,7 @@ impl Presenter {
let mut invalidated_views = Vec::new();
let mut hovered_regions = Vec::new();
let mut unhovered_regions = Vec::new();
let mut mouse_down_out_handlers = Vec::new();
let mut mouse_down_region = None;
let mut clicked_region = None;
let mut right_mouse_down_region = None;
@ -230,13 +231,18 @@ impl Presenter {
match event {
Event::LeftMouseDown { position, .. } => {
let mut hit = false;
for (region, _) in self.mouse_regions.iter().rev() {
if region.bounds.contains_point(position) {
invalidated_views.push(region.view_id);
mouse_down_region = Some((region.clone(), position));
self.clicked_region = Some(region.clone());
self.prev_drag_position = Some(position);
break;
if !hit {
hit = true;
invalidated_views.push(region.view_id);
mouse_down_region = Some((region.clone(), position));
self.clicked_region = Some(region.clone());
self.prev_drag_position = Some(position);
}
} else if let Some(handler) = region.mouse_down_out.clone() {
mouse_down_out_handlers.push((handler, region.view_id, position));
}
}
}
@ -254,12 +260,17 @@ impl Presenter {
}
}
Event::RightMouseDown { position, .. } => {
let mut hit = false;
for (region, _) in self.mouse_regions.iter().rev() {
if region.bounds.contains_point(position) {
invalidated_views.push(region.view_id);
right_mouse_down_region = Some((region.clone(), position));
self.right_clicked_region = Some(region.clone());
break;
if !hit {
hit = true;
invalidated_views.push(region.view_id);
right_mouse_down_region = Some((region.clone(), position));
self.right_clicked_region = Some(region.clone());
}
} else if let Some(handler) = region.right_mouse_down_out.clone() {
mouse_down_out_handlers.push((handler, region.view_id, position));
}
}
}
@ -355,6 +366,10 @@ impl Presenter {
}
}
for (handler, view_id, position) in mouse_down_out_handlers {
event_cx.with_current_view(view_id, |event_cx| handler(position, event_cx))
}
if let Some((mouse_down_region, position)) = mouse_down_region {
if let Some(mouse_down_callback) = mouse_down_region.mouse_down {
handled = true;

2
crates/gpui/src/scene.rs
View File

@ -54,6 +54,8 @@ pub struct MouseRegion {
pub right_mouse_down: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
pub right_click: Option<Rc<dyn Fn(Vector2F, usize, &mut EventContext)>>,
pub drag: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
pub mouse_down_out: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
pub right_mouse_down_out: Option<Rc<dyn Fn(Vector2F, &mut EventContext)>>,
}
#[derive(Copy, Clone, Eq, PartialEq, Hash)]