WIP
This commit is contained in:
Antonio Scandurra
@@ -0,0 +1,239 @@
|
||||
use super::DraggedItem;
|
||||
use crate::{Pane, SplitDirection, Workspace};
|
||||
use gpui2::{
|
||||
color::Color,
|
||||
elements::{Canvas, MouseEventHandler, ParentElement, Stack},
|
||||
geometry::{rect::RectF, vector::Vector2F},
|
||||
platform::MouseButton,
|
||||
scene::MouseUp,
|
||||
AppContext, Element, EventContext, MouseState, Quad, ViewContext, WeakViewHandle,
|
||||
};
|
||||
use project2::ProjectEntryId;
|
||||
|
||||
pub fn dragged_item_receiver<Tag, D, F>(
|
||||
pane: &Pane,
|
||||
region_id: usize,
|
||||
drop_index: usize,
|
||||
allow_same_pane: bool,
|
||||
split_margin: Option<f32>,
|
||||
cx: &mut ViewContext<Pane>,
|
||||
render_child: F,
|
||||
) -> MouseEventHandler<Pane>
|
||||
where
|
||||
Tag: 'static,
|
||||
D: Element<Pane>,
|
||||
F: FnOnce(&mut MouseState, &mut ViewContext<Pane>) -> D,
|
||||
{
|
||||
let drag_and_drop = cx.global::<DragAndDrop<Workspace>>();
|
||||
let drag_position = if (pane.can_drop)(drag_and_drop, cx) {
|
||||
drag_and_drop
|
||||
.currently_dragged::<DraggedItem>(cx.window())
|
||||
.map(|(drag_position, _)| drag_position)
|
||||
.or_else(|| {
|
||||
drag_and_drop
|
||||
.currently_dragged::<ProjectEntryId>(cx.window())
|
||||
.map(|(drag_position, _)| drag_position)
|
||||
})
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
let mut handler = MouseEventHandler::above::<Tag, _>(region_id, cx, |state, cx| {
|
||||
// Observing hovered will cause a render when the mouse enters regardless
|
||||
// of if mouse position was accessed before
|
||||
let drag_position = if state.dragging() {
|
||||
drag_position
|
||||
} else {
|
||||
None
|
||||
};
|
||||
Stack::new()
|
||||
.with_child(render_child(state, cx))
|
||||
.with_children(drag_position.map(|drag_position| {
|
||||
Canvas::new(move |bounds, _, _, cx| {
|
||||
if bounds.contains_point(drag_position) {
|
||||
let overlay_region = split_margin
|
||||
.and_then(|split_margin| {
|
||||
drop_split_direction(drag_position, bounds, split_margin)
|
||||
.map(|dir| (dir, split_margin))
|
||||
})
|
||||
.map(|(dir, margin)| dir.along_edge(bounds, margin))
|
||||
.unwrap_or(bounds);
|
||||
|
||||
cx.scene().push_stacking_context(None, None);
|
||||
let background = overlay_color(cx);
|
||||
cx.scene().push_quad(Quad {
|
||||
bounds: overlay_region,
|
||||
background: Some(background),
|
||||
border: Default::default(),
|
||||
corner_radii: Default::default(),
|
||||
});
|
||||
cx.scene().pop_stacking_context();
|
||||
}
|
||||
})
|
||||
}))
|
||||
});
|
||||
|
||||
if drag_position.is_some() {
|
||||
handler = handler
|
||||
.on_up(MouseButton::Left, {
|
||||
move |event, pane, cx| {
|
||||
let workspace = pane.workspace.clone();
|
||||
let pane = cx.weak_handle();
|
||||
handle_dropped_item(
|
||||
event,
|
||||
workspace,
|
||||
&pane,
|
||||
drop_index,
|
||||
allow_same_pane,
|
||||
split_margin,
|
||||
cx,
|
||||
);
|
||||
cx.notify();
|
||||
}
|
||||
})
|
||||
.on_move(|_, _, cx| {
|
||||
let drag_and_drop = cx.global::<DragAndDrop<Workspace>>();
|
||||
|
||||
if drag_and_drop
|
||||
.currently_dragged::<DraggedItem>(cx.window())
|
||||
.is_some()
|
||||
|| drag_and_drop
|
||||
.currently_dragged::<ProjectEntryId>(cx.window())
|
||||
.is_some()
|
||||
{
|
||||
cx.notify();
|
||||
} else {
|
||||
cx.propagate_event();
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
handler
|
||||
}
|
||||
|
||||
pub fn handle_dropped_item<V: 'static>(
|
||||
event: MouseUp,
|
||||
workspace: WeakViewHandle<Workspace>,
|
||||
pane: &WeakViewHandle<Pane>,
|
||||
index: usize,
|
||||
allow_same_pane: bool,
|
||||
split_margin: Option<f32>,
|
||||
cx: &mut EventContext<V>,
|
||||
) {
|
||||
enum Action {
|
||||
Move(WeakViewHandle<Pane>, usize),
|
||||
Open(ProjectEntryId),
|
||||
}
|
||||
let drag_and_drop = cx.global::<DragAndDrop<Workspace>>();
|
||||
let action = if let Some((_, dragged_item)) =
|
||||
drag_and_drop.currently_dragged::<DraggedItem>(cx.window())
|
||||
{
|
||||
Action::Move(dragged_item.pane.clone(), dragged_item.handle.id())
|
||||
} else if let Some((_, project_entry)) =
|
||||
drag_and_drop.currently_dragged::<ProjectEntryId>(cx.window())
|
||||
{
|
||||
Action::Open(*project_entry)
|
||||
} else {
|
||||
cx.propagate_event();
|
||||
return;
|
||||
};
|
||||
|
||||
if let Some(split_direction) =
|
||||
split_margin.and_then(|margin| drop_split_direction(event.position, event.region, margin))
|
||||
{
|
||||
let pane_to_split = pane.clone();
|
||||
match action {
|
||||
Action::Move(from, item_id_to_move) => {
|
||||
cx.window_context().defer(move |cx| {
|
||||
if let Some(workspace) = workspace.upgrade(cx) {
|
||||
workspace.update(cx, |workspace, cx| {
|
||||
workspace.split_pane_with_item(
|
||||
pane_to_split,
|
||||
split_direction,
|
||||
from,
|
||||
item_id_to_move,
|
||||
cx,
|
||||
);
|
||||
})
|
||||
}
|
||||
});
|
||||
}
|
||||
Action::Open(project_entry) => {
|
||||
cx.window_context().defer(move |cx| {
|
||||
if let Some(workspace) = workspace.upgrade(cx) {
|
||||
workspace.update(cx, |workspace, cx| {
|
||||
if let Some(task) = workspace.split_pane_with_project_entry(
|
||||
pane_to_split,
|
||||
split_direction,
|
||||
project_entry,
|
||||
cx,
|
||||
) {
|
||||
task.detach_and_log_err(cx);
|
||||
}
|
||||
})
|
||||
}
|
||||
});
|
||||
}
|
||||
};
|
||||
} else {
|
||||
match action {
|
||||
Action::Move(from, item_id) => {
|
||||
if pane != &from || allow_same_pane {
|
||||
let pane = pane.clone();
|
||||
cx.window_context().defer(move |cx| {
|
||||
if let Some(((workspace, from), to)) = workspace
|
||||
.upgrade(cx)
|
||||
.zip(from.upgrade(cx))
|
||||
.zip(pane.upgrade(cx))
|
||||
{
|
||||
workspace.update(cx, |workspace, cx| {
|
||||
workspace.move_item(from, to, item_id, index, cx);
|
||||
})
|
||||
}
|
||||
});
|
||||
} else {
|
||||
cx.propagate_event();
|
||||
}
|
||||
}
|
||||
Action::Open(project_entry) => {
|
||||
let pane = pane.clone();
|
||||
cx.window_context().defer(move |cx| {
|
||||
if let Some(workspace) = workspace.upgrade(cx) {
|
||||
workspace.update(cx, |workspace, cx| {
|
||||
if let Some(path) =
|
||||
workspace.project.read(cx).path_for_entry(project_entry, cx)
|
||||
{
|
||||
workspace
|
||||
.open_path(path, Some(pane), true, cx)
|
||||
.detach_and_log_err(cx);
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn drop_split_direction(
|
||||
position: Vector2F,
|
||||
region: RectF,
|
||||
split_margin: f32,
|
||||
) -> Option<SplitDirection> {
|
||||
let mut min_direction = None;
|
||||
let mut min_distance = split_margin;
|
||||
for direction in SplitDirection::all() {
|
||||
let edge_distance = (direction.edge(region) - direction.axis().component(position)).abs();
|
||||
|
||||
if edge_distance < min_distance {
|
||||
min_direction = Some(direction);
|
||||
min_distance = edge_distance;
|
||||
}
|
||||
}
|
||||
|
||||
min_direction
|
||||
}
|
||||
|
||||
fn overlay_color(cx: &AppContext) -> Color {
|
||||
theme2::current(cx).workspace.drop_target_overlay_color
|
||||
}
|
||||
Reference in New Issue
Block a user