fd256d159d
Release Notes: - Improve to keep drag cursor style on dragging resize handles. --- ### Before https://github.com/user-attachments/assets/d4100d01-ac02-42b8-b923-9f2b4633c458 ### After https://github.com/user-attachments/assets/b5a450cd-c6de-4b39-a79c-2d73fcbad209 With example: ``` cargo run -p gpui --example drag_drop ``` https://github.com/user-attachments/assets/4cba1966-1578-40ce-a435-64ec11bcace5
137 lines
4.1 KiB
Rust
137 lines
4.1 KiB
Rust
use gpui::{
|
|
App, Application, Bounds, Context, Half, Hsla, Pixels, Point, Window, WindowBounds,
|
|
WindowOptions, div, prelude::*, px, rgb, size,
|
|
};
|
|
|
|
#[derive(Clone, Copy)]
|
|
struct DragInfo {
|
|
ix: usize,
|
|
color: Hsla,
|
|
position: Point<Pixels>,
|
|
}
|
|
|
|
impl DragInfo {
|
|
fn new(ix: usize, color: Hsla) -> Self {
|
|
Self {
|
|
ix,
|
|
color,
|
|
position: Point::default(),
|
|
}
|
|
}
|
|
|
|
fn position(mut self, pos: Point<Pixels>) -> Self {
|
|
self.position = pos;
|
|
self
|
|
}
|
|
}
|
|
|
|
impl Render for DragInfo {
|
|
fn render(&mut self, _: &mut Window, _: &mut Context<'_, Self>) -> impl IntoElement {
|
|
let size = gpui::size(px(120.), px(50.));
|
|
|
|
div()
|
|
.pl(self.position.x - size.width.half())
|
|
.pt(self.position.y - size.height.half())
|
|
.child(
|
|
div()
|
|
.flex()
|
|
.justify_center()
|
|
.items_center()
|
|
.w(size.width)
|
|
.h(size.height)
|
|
.bg(self.color.opacity(0.5))
|
|
.text_color(gpui::white())
|
|
.text_xs()
|
|
.shadow_md()
|
|
.child(format!("Item {}", self.ix)),
|
|
)
|
|
}
|
|
}
|
|
|
|
struct DragDrop {
|
|
drop_on: Option<DragInfo>,
|
|
}
|
|
|
|
impl DragDrop {
|
|
fn new() -> Self {
|
|
Self { drop_on: None }
|
|
}
|
|
}
|
|
|
|
impl Render for DragDrop {
|
|
fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
|
|
let items = [gpui::blue(), gpui::red(), gpui::green()];
|
|
|
|
div()
|
|
.size_full()
|
|
.flex()
|
|
.flex_col()
|
|
.gap_5()
|
|
.bg(gpui::white())
|
|
.justify_center()
|
|
.items_center()
|
|
.text_color(rgb(0x333333))
|
|
.child(div().text_xl().text_center().child("Drop & Drop"))
|
|
.child(
|
|
div()
|
|
.w_full()
|
|
.mb_10()
|
|
.justify_center()
|
|
.flex()
|
|
.flex_row()
|
|
.gap_4()
|
|
.items_center()
|
|
.children(items.into_iter().enumerate().map(|(ix, color)| {
|
|
let drag_info = DragInfo::new(ix, color);
|
|
|
|
div()
|
|
.id(("item", ix))
|
|
.size_32()
|
|
.flex()
|
|
.justify_center()
|
|
.items_center()
|
|
.border_2()
|
|
.border_color(color)
|
|
.text_color(color)
|
|
.cursor_move()
|
|
.hover(|this| this.bg(color.opacity(0.2)))
|
|
.child(format!("Item ({})", ix))
|
|
.on_drag(drag_info, |info: &DragInfo, position, _, cx| {
|
|
cx.new(|_| info.position(position))
|
|
})
|
|
})),
|
|
)
|
|
.child(
|
|
div()
|
|
.id("drop-target")
|
|
.w_128()
|
|
.h_32()
|
|
.flex()
|
|
.justify_center()
|
|
.items_center()
|
|
.border_3()
|
|
.border_color(self.drop_on.map(|info| info.color).unwrap_or(gpui::black()))
|
|
.when_some(self.drop_on, |this, info| this.bg(info.color.opacity(0.5)))
|
|
.on_drop(cx.listener(|this, info: &DragInfo, _, _| {
|
|
this.drop_on = Some(*info);
|
|
}))
|
|
.child("Drop items here"),
|
|
)
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
Application::new().run(|cx: &mut App| {
|
|
let bounds = Bounds::centered(None, size(px(800.), px(600.0)), cx);
|
|
cx.open_window(
|
|
WindowOptions {
|
|
window_bounds: Some(WindowBounds::Windowed(bounds)),
|
|
..Default::default()
|
|
},
|
|
|_, cx| cx.new(|_| DragDrop::new()),
|
|
)
|
|
.unwrap();
|
|
|
|
cx.activate(true);
|
|
});
|
|
}
|