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chore: improve chat panel

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This commit is contained in:
reya
2025-02-19 09:08:29 +07:00
parent 50242981a5
commit 61fb90bd34
8 changed files with 211 additions and 134 deletions
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142
crates/ui/src/scroll/scrollbar.rs
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@@ -1,6 +1,14 @@
use gpui::*;
use gpui::{
fill, point, px, relative, App, Bounds, ContentMask, CursorStyle, Edges, Element, EntityId,
Hitbox, Hsla, IntoElement, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, Pixels,
Point, Position, ScrollHandle, ScrollWheelEvent, UniformListScrollHandle, Window,
};
use serde::{Deserialize, Serialize};
use std::{cell::Cell, rc::Rc, time::Instant};
use std::{
cell::Cell,
rc::Rc,
time::{Duration, Instant},
};
use crate::theme::{scale::ColorScaleStep, ActiveTheme};
@@ -10,18 +18,24 @@ pub enum ScrollbarShow {
#[default]
Scrolling,
Hover,
Always,
}
impl ScrollbarShow {
fn is_hover(&self) -> bool {
matches!(self, Self::Hover)
}
fn is_always(&self) -> bool {
matches!(self, Self::Always)
}
}
const BORDER_WIDTH: Pixels = px(0.);
pub(crate) const WIDTH: Pixels = px(12.);
const MIN_THUMB_SIZE: f32 = 80.;
const THUMB_RADIUS: Pixels = Pixels(3.0);
const THUMB_INSET: Pixels = Pixels(4.);
const THUMB_RADIUS: Pixels = Pixels(4.0);
const THUMB_INSET: Pixels = Pixels(3.);
const FADE_OUT_DURATION: f32 = 3.0;
const FADE_OUT_DELAY: f32 = 2.0;
@@ -65,6 +79,8 @@ pub struct ScrollbarState {
drag_pos: Point<Pixels>,
last_scroll_offset: Point<Pixels>,
last_scroll_time: Option<Instant>,
// Last update offset
last_update: Instant,
}
impl Default for ScrollbarState {
@@ -76,6 +92,7 @@ impl Default for ScrollbarState {
drag_pos: point(px(0.), px(0.)),
last_scroll_offset: point(px(0.), px(0.)),
last_scroll_time: None,
last_update: Instant::now(),
}
}
}
@@ -106,8 +123,8 @@ impl ScrollbarState {
fn with_hovered(&self, axis: Option<ScrollbarAxis>) -> Self {
let mut state = *self;
state.hovered_axis = axis;
if self.is_scrollbar_visible() {
state.last_scroll_time = Some(Instant::now());
if axis.is_some() {
state.last_scroll_time = Some(std::time::Instant::now());
}
state
}
@@ -115,6 +132,9 @@ impl ScrollbarState {
fn with_hovered_on_thumb(&self, axis: Option<ScrollbarAxis>) -> Self {
let mut state = *self;
state.hovered_on_thumb = axis;
if axis.is_some() {
state.last_scroll_time = Some(std::time::Instant::now());
}
state
}
@@ -135,7 +155,18 @@ impl ScrollbarState {
state
}
fn with_last_update(&self, t: Instant) -> Self {
let mut state = *self;
state.last_update = t;
state
}
fn is_scrollbar_visible(&self) -> bool {
// On drag
if self.dragged_axis.is_some() {
return true;
}
if let Some(last_time) = self.last_scroll_time {
let elapsed = Instant::now().duration_since(last_time).as_secs_f32();
elapsed < FADE_OUT_DURATION
@@ -178,9 +209,9 @@ impl ScrollbarAxis {
match self {
Self::Vertical => vec![Self::Vertical],
Self::Horizontal => vec![Self::Horizontal],
// This should keep vertical first, vertical is the primary axis
// if vertical not need display, then horizontal will not keep right margin.
Self::Both => vec![Self::Vertical, Self::Horizontal],
// This should keep Horizontal first, Vertical is the primary axis
// if Vertical not need display, then Horizontal will not keep right margin.
Self::Both => vec![Self::Horizontal, Self::Vertical],
}
}
}
@@ -189,11 +220,14 @@ impl ScrollbarAxis {
pub struct Scrollbar {
view_id: EntityId,
axis: ScrollbarAxis,
/// When is vertical, this is the height of the scrollbar.
width: Pixels,
scroll_handle: Rc<Box<dyn ScrollHandleOffsetable>>,
scroll_size: gpui::Size<Pixels>,
state: Rc<Cell<ScrollbarState>>,
/// Maximum frames per second for scrolling by drag. Default is 120 FPS.
///
/// This is used to limit the update rate of the scrollbar when it is
/// being dragged for some complex interactions for reducing CPU usage.
max_fps: usize,
}
impl Scrollbar {
@@ -209,8 +243,8 @@ impl Scrollbar {
state,
axis,
scroll_size,
width: px(12.),
scroll_handle: Rc::new(Box::new(scroll_handle)),
max_fps: 120,
}
}
@@ -290,11 +324,21 @@ impl Scrollbar {
self
}
/// Set maximum frames per second for scrolling by drag. Default is 120 FPS.
///
/// If you have very high CPU usage, consider reducing this value to improve performance.
///
/// Available values: 30..120
pub fn max_fps(mut self, max_fps: usize) -> Self {
self.max_fps = max_fps.clamp(30, 120);
self
}
fn style_for_active(cx: &App) -> (Hsla, Hsla, Hsla, Pixels, Pixels) {
(
cx.theme().scrollbar_thumb_hover,
cx.theme().scrollbar,
cx.theme().base.step(cx, ColorScaleStep::THREE),
cx.theme().base.step(cx, ColorScaleStep::SEVEN),
THUMB_INSET - px(1.),
THUMB_RADIUS,
)
@@ -304,7 +348,7 @@ impl Scrollbar {
(
cx.theme().scrollbar_thumb_hover,
cx.theme().scrollbar,
cx.theme().base.step(cx, ColorScaleStep::THREE),
cx.theme().base.step(cx, ColorScaleStep::SIX),
THUMB_INSET - px(1.),
THUMB_RADIUS,
)
@@ -382,11 +426,11 @@ impl Element for Scrollbar {
window: &mut Window,
cx: &mut App,
) -> (gpui::LayoutId, Self::RequestLayoutState) {
let style = Style {
let style = gpui::Style {
position: Position::Absolute,
flex_grow: 1.0,
flex_shrink: 1.0,
size: Size {
size: gpui::Size {
width: relative(1.).into(),
height: relative(1.).into(),
},
@@ -409,7 +453,6 @@ impl Element for Scrollbar {
});
let mut states = vec![];
let mut has_both = self.axis.is_both();
for axis in self.axis.all().into_iter() {
@@ -430,7 +473,7 @@ impl Element for Scrollbar {
// The horizontal scrollbar is set avoid overlapping with the vertical scrollbar, if the vertical scrollbar is visible.
let margin_end = if has_both && !is_vertical {
self.width
WIDTH
} else {
px(0.)
};
@@ -449,31 +492,29 @@ impl Element for Scrollbar {
let bounds = Bounds {
origin: if is_vertical {
point(
hitbox.origin.x + hitbox.size.width - self.width,
hitbox.origin.y,
)
point(hitbox.origin.x + hitbox.size.width - WIDTH, hitbox.origin.y)
} else {
point(
hitbox.origin.x,
hitbox.origin.y + hitbox.size.height - self.width,
hitbox.origin.y + hitbox.size.height - WIDTH,
)
},
size: gpui::Size {
width: if is_vertical {
self.width
WIDTH
} else {
hitbox.size.width
},
height: if is_vertical {
hitbox.size.height
} else {
self.width
WIDTH
},
},
};
let state = self.state.clone();
let is_always_to_show = cx.theme().scrollbar_show.is_always();
let is_hover_to_show = cx.theme().scrollbar_show.is_hover();
let is_hovered_on_bar = state.get().hovered_axis == Some(axis);
let is_hovered_on_thumb = state.get().hovered_on_thumb == Some(axis);
@@ -481,7 +522,9 @@ impl Element for Scrollbar {
let (thumb_bg, bar_bg, bar_border, inset, radius) =
if state.get().dragged_axis == Some(axis) {
Self::style_for_active(cx)
} else if is_hover_to_show && is_hovered_on_bar {
} else if (is_hover_to_show || is_always_to_show)
&& (is_hovered_on_bar || is_hovered_on_thumb)
{
if is_hovered_on_thumb {
Self::style_for_hovered_thumb(cx)
} else {
@@ -520,12 +563,12 @@ impl Element for Scrollbar {
let thumb_bounds = if is_vertical {
Bounds::from_corners(
point(bounds.origin.x, bounds.origin.y + thumb_start),
point(bounds.origin.x + self.width, bounds.origin.y + thumb_end),
point(bounds.origin.x + WIDTH, bounds.origin.y + thumb_end),
)
} else {
Bounds::from_corners(
point(bounds.origin.x + thumb_start, bounds.origin.y),
point(bounds.origin.x + thumb_end, bounds.origin.y + self.width),
point(bounds.origin.x + thumb_end, bounds.origin.y + WIDTH),
)
};
let thumb_fill_bounds = if is_vertical {
@@ -535,7 +578,7 @@ impl Element for Scrollbar {
bounds.origin.y + thumb_start + inset,
),
point(
bounds.origin.x + self.width - inset,
bounds.origin.x + WIDTH - inset,
bounds.origin.y + thumb_end - inset,
),
)
@@ -547,7 +590,7 @@ impl Element for Scrollbar {
),
point(
bounds.origin.x + thumb_end - inset,
bounds.origin.y + self.width - inset,
bounds.origin.y + WIDTH - inset,
),
)
};
@@ -589,6 +632,15 @@ impl Element for Scrollbar {
let is_visible = self.state.get().is_scrollbar_visible();
let is_hover_to_show = cx.theme().scrollbar_show.is_hover();
// Update last_scroll_time when offset is changed.
if self.scroll_handle.offset() != self.state.get().last_scroll_offset {
self.state.set(
self.state
.get()
.with_last_scroll(self.scroll_handle.offset(), Some(Instant::now())),
);
}
window.with_content_mask(
Some(ContentMask {
bounds: hitbox_bounds,
@@ -711,30 +763,36 @@ impl Element for Scrollbar {
let scroll_handle = self.scroll_handle.clone();
let state = self.state.clone();
let view_id = self.view_id;
let max_fps_duration = Duration::from_millis((1000 / self.max_fps) as u64);
move |event: &MouseMoveEvent, _, _, cx| {
let mut notify = false;
// When is hover to show mode or it was visible,
// we need to update the hovered state and increase the last_scroll_time.
let need_hover_to_update = is_hover_to_show || is_visible;
// Update hovered state for scrollbar
if bounds.contains(&event.position) {
if bounds.contains(&event.position) && need_hover_to_update {
state.set(state.get().with_hovered(Some(axis)));
if state.get().hovered_axis != Some(axis) {
state.set(state.get().with_hovered(Some(axis)));
cx.notify(view_id);
notify = true;
}
} else if state.get().hovered_axis == Some(axis)
&& state.get().hovered_axis.is_some()
{
state.set(state.get().with_hovered(None));
cx.notify(view_id);
notify = true;
}
// Update hovered state for scrollbar thumb
if thumb_bounds.contains(&event.position) {
if state.get().hovered_on_thumb != Some(axis) {
state.set(state.get().with_hovered_on_thumb(Some(axis)));
cx.notify(view_id);
notify = true;
}
} else if state.get().hovered_on_thumb == Some(axis) {
state.set(state.get().with_hovered_on_thumb(None));
cx.notify(view_id);
notify = true;
}
// Move thumb position on dragging
@@ -769,10 +827,18 @@ impl Element for Scrollbar {
if (scroll_handle.offset().y - offset.y).abs() > px(1.)
|| (scroll_handle.offset().x - offset.x).abs() > px(1.)
{
scroll_handle.set_offset(offset);
cx.notify(view_id);
// Limit update rate
if state.get().last_update.elapsed() > max_fps_duration {
scroll_handle.set_offset(offset);
state.set(state.get().with_last_update(Instant::now()));
notify = true;
}
}
}
if notify {
cx.notify(view_id);
}
}
});