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tiles: Add active_panel method to Tiles. (#656)

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Jason Lee 2025-02-25 12:00:43 +08:00 committed by GitHub
parent 6d7f20cd4f
commit 806c6dffe8
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1 changed files with 45 additions and 12 deletions
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57
crates/ui/src/dock/tiles.rs
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@ -15,11 +15,11 @@ use crate::{
use super::{DockArea, Panel, PanelEvent, PanelInfo, PanelState, PanelView, TabPanel, TileMeta};
use gpui::{
actions, canvas, div, point, prelude::FluentBuilder as _, px, size, AnyElement, App,
AppContext, Bounds, Context, DismissEvent, DragMoveEvent, Empty, EntityId, EventEmitter,
FocusHandle, Focusable, Half, InteractiveElement, IntoElement, MouseButton, MouseDownEvent,
MouseUpEvent, ParentElement, Pixels, Point, Render, ScrollHandle, Size,
StatefulInteractiveElement, Styled, WeakEntity, Window,
actions, canvas, div, point, px, size, AnyElement, App, AppContext, Bounds, Context,
DismissEvent, DragMoveEvent, Empty, EntityId, EventEmitter, FocusHandle, Focusable, Half,
InteractiveElement, IntoElement, MouseButton, MouseDownEvent, MouseUpEvent, ParentElement,
Pixels, Point, Render, ScrollHandle, Size, StatefulInteractiveElement, Styled, WeakEntity,
Window,
};
actions!(tiles, [Undo, Redo,]);
@ -131,6 +131,7 @@ pub struct Tiles {
dragging_initial_mouse: Point<Pixels>,
dragging_initial_bounds: Bounds<Pixels>,
resizing_index: Option<usize>,
active_index: Option<usize>,
resizing_drag_data: Option<ResizeDrag>,
bounds: Bounds<Pixels>,
history: History<TileChange>,
@ -190,6 +191,7 @@ impl Tiles {
history: History::new().group_interval(std::time::Duration::from_millis(100)),
scroll_state: Rc::new(Cell::new(ScrollbarState::default())),
scroll_handle: ScrollHandle::default(),
active_index: None,
}
}
@ -405,7 +407,11 @@ impl Tiles {
}
/// Bring the panel of target_index to front, returns (old_index, new_index) if successful
fn bring_to_front(&mut self, target_index: Option<usize>) -> Option<(usize, usize)> {
fn bring_to_front(
&mut self,
target_index: Option<usize>,
cx: &mut Context<Self>,
) -> Option<(usize, usize)> {
if let Some(old_index) = target_index {
if old_index < self.panels.len() {
let item = self.panels.remove(old_index);
@ -419,6 +425,7 @@ impl Tiles {
new_order: Some(new_index),
version: 0,
});
cx.notify();
return Some((old_index, new_index));
}
}
@ -479,6 +486,24 @@ impl Tiles {
cx.notify();
}
/// Returns the active panel, if any.
pub fn active_panel(&self) -> Option<Arc<dyn PanelView>> {
let Some(active_index) = self.active_index else {
return None;
};
self.panels.get(active_index).map(|item| item.panel.clone())
}
fn set_active_index(&mut self, index: Option<usize>, cx: &mut Context<Self>) {
if self.active_index == index {
return;
}
self.active_index = index;
cx.notify();
}
/// Produce a vector of AnyElement representing the three possible resize handles
fn render_resize_handles(
&mut self,
@ -531,7 +556,8 @@ impl Tiles {
last_bounds: panel_bounds,
};
this.update_resizing_drag(drag_data, window, cx);
if let Some((_, new_ix)) = this.bring_to_front(this.resizing_index) {
if let Some((_, new_ix)) = this.bring_to_front(this.resizing_index, cx)
{
this.resizing_index = Some(new_ix);
}
}
@ -587,7 +613,8 @@ impl Tiles {
last_bounds: panel_bounds,
};
this.update_resizing_drag(drag_data, window, cx);
if let Some((_, new_ix)) = this.bring_to_front(this.resizing_index) {
if let Some((_, new_ix)) = this.bring_to_front(this.resizing_index, cx)
{
this.resizing_index = Some(new_ix);
}
}
@ -645,7 +672,8 @@ impl Tiles {
last_bounds: panel_bounds,
};
this.update_resizing_drag(drag_data, window, cx);
if let Some((_, new_ix)) = this.bring_to_front(this.resizing_index) {
if let Some((_, new_ix)) = this.bring_to_front(this.resizing_index, cx)
{
this.resizing_index = Some(new_ix);
}
}
@ -717,7 +745,7 @@ impl Tiles {
cx.listener(move |this, event: &MouseDownEvent, window, cx| {
let last_position = event.position;
this.update_initial_position(last_position, window, cx);
if let Some((_, new_ix)) = this.bring_to_front(this.dragging_index) {
if let Some((_, new_ix)) = this.bring_to_front(this.dragging_index, cx) {
this.dragging_index = Some(new_ix);
}
}),
@ -780,10 +808,15 @@ impl Tiles {
.h(item.bounds.size.height + px(1.))
.overflow_hidden()
.rounded(cx.theme().radius)
.when(cx.theme().tile_shadow, |this| this.shadow_md())
.child(h_flex().size_full().child(panel_view))
.children(self.render_resize_handles(window, cx, entity_id, &item, &is_occluded))
.child(self.render_drag_bar(window, cx, entity_id, &item, &is_occluded))
.on_mouse_up(
MouseButton::Left,
cx.listener(move |this, _, _, cx| {
this.set_active_index(Some(ix), cx);
}),
)
}
/// Handle the mouse up event to finalize drag or resize operations
@ -927,7 +960,7 @@ impl Render for Tiles {
if this.resizing_index.is_none() && this.dragging_index.is_none() {
let position = event.position;
if let Some((index, _)) = this.find_at_position(position) {
this.bring_to_front(Some(index));
this.bring_to_front(Some(index), cx);
cx.notify();
}
}