513 lines
15 KiB
Rust
513 lines
15 KiB
Rust
use gpui2::elements::div::Div;
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use gpui2::{Hsla, WindowContext};
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use crate::prelude::*;
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use crate::{
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h_stack, theme, token, v_stack, Avatar, DisclosureControlVisibility, Icon, IconColor,
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IconElement, IconSize, InteractionState, Label, LabelColor, LabelSize, SystemColor,
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ToggleState,
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};
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#[derive(Clone, Copy, Default, Debug, PartialEq)]
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pub enum ListItemVariant {
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/// The list item extends to the far left and right of the list.
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#[default]
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FullWidth,
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Inset,
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}
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#[derive(Element, Clone, Copy)]
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pub struct ListHeader {
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label: &'static str,
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left_icon: Option<Icon>,
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variant: ListItemVariant,
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state: InteractionState,
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toggleable: Toggleable,
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}
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impl ListHeader {
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pub fn new(label: &'static str) -> Self {
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Self {
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label,
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left_icon: None,
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variant: ListItemVariant::default(),
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state: InteractionState::default(),
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toggleable: Toggleable::default(),
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}
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}
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pub fn set_toggle(mut self, toggle: ToggleState) -> Self {
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self.toggleable = toggle.into();
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self
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}
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pub fn set_toggleable(mut self, toggleable: Toggleable) -> Self {
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self.toggleable = toggleable;
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self
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}
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pub fn left_icon(mut self, left_icon: Option<Icon>) -> Self {
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self.left_icon = left_icon;
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self
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}
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pub fn state(mut self, state: InteractionState) -> Self {
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self.state = state;
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self
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}
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fn disclosure_control<V: 'static>(&self) -> Div<V> {
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let is_toggleable = self.toggleable != Toggleable::NotToggleable;
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let is_toggled = Toggleable::is_toggled(&self.toggleable);
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match (is_toggleable, is_toggled) {
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(false, _) => div(),
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(_, true) => div().child(IconElement::new(Icon::ChevronRight).color(IconColor::Muted)),
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(_, false) => div().child(IconElement::new(Icon::ChevronDown).size(IconSize::Small)),
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}
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}
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fn background_color(&self, cx: &WindowContext) -> Hsla {
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let theme = theme(cx);
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let system_color = SystemColor::new();
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match self.state {
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InteractionState::Hovered => theme.lowest.base.hovered.background,
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InteractionState::Active => theme.lowest.base.pressed.background,
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InteractionState::Enabled => theme.lowest.on.default.background,
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_ => system_color.transparent,
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}
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}
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fn label_color(&self) -> LabelColor {
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match self.state {
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InteractionState::Disabled => LabelColor::Disabled,
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_ => Default::default(),
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}
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}
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fn icon_color(&self) -> IconColor {
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match self.state {
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InteractionState::Disabled => IconColor::Disabled,
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_ => Default::default(),
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}
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}
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fn render<V: 'static>(&mut self, _: &mut V, cx: &mut ViewContext<V>) -> impl IntoElement<V> {
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let theme = theme(cx);
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let token = token();
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let system_color = SystemColor::new();
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let background_color = self.background_color(cx);
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let is_toggleable = self.toggleable != Toggleable::NotToggleable;
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let is_toggled = Toggleable::is_toggled(&self.toggleable);
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let disclosure_control = self.disclosure_control();
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h_stack()
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.flex_1()
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.w_full()
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.fill(background_color)
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.when(self.state == InteractionState::Focused, |this| {
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this.border()
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.border_color(theme.lowest.accent.default.border)
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})
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.relative()
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.py_1()
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.child(
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div()
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.h_6()
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.when(self.variant == ListItemVariant::Inset, |this| this.px_2())
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.flex()
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.flex_1()
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.w_full()
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.gap_1()
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.items_center()
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.justify_between()
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.child(
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div()
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.flex()
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.gap_1()
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.items_center()
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.children(self.left_icon.map(|i| {
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IconElement::new(i)
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.color(IconColor::Muted)
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.size(IconSize::Small)
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}))
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.child(
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Label::new(self.label)
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.color(LabelColor::Muted)
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.size(LabelSize::Small),
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),
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)
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.child(disclosure_control),
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)
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}
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}
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#[derive(Element, Clone, Copy)]
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pub struct ListSubHeader {
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label: &'static str,
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left_icon: Option<Icon>,
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variant: ListItemVariant,
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}
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impl ListSubHeader {
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pub fn new(label: &'static str) -> Self {
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Self {
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label,
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left_icon: None,
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variant: ListItemVariant::default(),
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}
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}
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pub fn left_icon(mut self, left_icon: Option<Icon>) -> Self {
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self.left_icon = left_icon;
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self
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}
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fn render<V: 'static>(&mut self, _: &mut V, cx: &mut ViewContext<V>) -> impl IntoElement<V> {
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let theme = theme(cx);
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let token = token();
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h_stack().flex_1().w_full().relative().py_1().child(
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div()
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.h_6()
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.when(self.variant == ListItemVariant::Inset, |this| this.px_2())
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.flex()
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.flex_1()
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.w_full()
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.gap_1()
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.items_center()
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.justify_between()
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.child(
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div()
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.flex()
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.gap_1()
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.items_center()
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.children(self.left_icon.map(|i| {
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IconElement::new(i)
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.color(IconColor::Muted)
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.size(IconSize::Small)
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}))
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.child(
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Label::new(self.label)
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.color(LabelColor::Muted)
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.size(LabelSize::Small),
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),
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),
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)
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}
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}
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#[derive(Clone)]
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pub enum LeftContent {
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Icon(Icon),
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Avatar(&'static str),
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}
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#[derive(Default, PartialEq, Copy, Clone)]
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pub enum ListEntrySize {
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#[default]
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Small,
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Medium,
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}
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#[derive(Clone, Element)]
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pub enum ListItem {
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Entry(ListEntry),
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Separator(ListSeparator),
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Header(ListSubHeader),
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}
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impl From<ListEntry> for ListItem {
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fn from(entry: ListEntry) -> Self {
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Self::Entry(entry)
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}
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}
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impl From<ListSeparator> for ListItem {
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fn from(entry: ListSeparator) -> Self {
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Self::Separator(entry)
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}
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}
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impl From<ListSubHeader> for ListItem {
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fn from(entry: ListSubHeader) -> Self {
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Self::Header(entry)
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}
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}
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impl ListItem {
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fn render<V: 'static>(&mut self, v: &mut V, cx: &mut ViewContext<V>) -> impl IntoElement<V> {
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match self {
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ListItem::Entry(entry) => div().child(entry.render(v, cx)),
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ListItem::Separator(separator) => div().child(separator.render(v, cx)),
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ListItem::Header(header) => div().child(header.render(v, cx)),
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}
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}
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pub fn new(label: Label) -> Self {
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Self::Entry(ListEntry::new(label))
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}
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pub fn as_entry(&mut self) -> Option<&mut ListEntry> {
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if let Self::Entry(entry) = self {
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Some(entry)
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} else {
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None
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}
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}
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}
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#[derive(Element, Clone)]
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pub struct ListEntry {
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disclosure_control_style: DisclosureControlVisibility,
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indent_level: u32,
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label: Label,
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left_content: Option<LeftContent>,
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variant: ListItemVariant,
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size: ListEntrySize,
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state: InteractionState,
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toggle: Option<ToggleState>,
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}
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impl ListEntry {
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pub fn new(label: Label) -> Self {
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Self {
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disclosure_control_style: DisclosureControlVisibility::default(),
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indent_level: 0,
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label,
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variant: ListItemVariant::default(),
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left_content: None,
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size: ListEntrySize::default(),
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state: InteractionState::default(),
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toggle: None,
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}
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}
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pub fn variant(mut self, variant: ListItemVariant) -> Self {
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self.variant = variant;
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self
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}
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pub fn indent_level(mut self, indent_level: u32) -> Self {
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self.indent_level = indent_level;
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self
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}
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pub fn set_toggle(mut self, toggle: ToggleState) -> Self {
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self.toggle = Some(toggle);
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self
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}
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pub fn left_content(mut self, left_content: LeftContent) -> Self {
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self.left_content = Some(left_content);
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self
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}
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pub fn left_icon(mut self, left_icon: Icon) -> Self {
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self.left_content = Some(LeftContent::Icon(left_icon));
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self
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}
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pub fn left_avatar(mut self, left_avatar: &'static str) -> Self {
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self.left_content = Some(LeftContent::Avatar(left_avatar));
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self
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}
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pub fn state(mut self, state: InteractionState) -> Self {
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self.state = state;
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self
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}
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pub fn size(mut self, size: ListEntrySize) -> Self {
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self.size = size;
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self
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}
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pub fn disclosure_control_style(
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mut self,
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disclosure_control_style: DisclosureControlVisibility,
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) -> Self {
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self.disclosure_control_style = disclosure_control_style;
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self
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}
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fn background_color(&self, cx: &WindowContext) -> Hsla {
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let theme = theme(cx);
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let system_color = SystemColor::new();
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match self.state {
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InteractionState::Hovered => theme.lowest.base.hovered.background,
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InteractionState::Active => theme.lowest.base.pressed.background,
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InteractionState::Enabled => theme.lowest.on.default.background,
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_ => system_color.transparent,
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}
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}
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fn label_color(&self) -> LabelColor {
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match self.state {
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InteractionState::Disabled => LabelColor::Disabled,
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_ => Default::default(),
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}
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}
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fn icon_color(&self) -> IconColor {
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match self.state {
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InteractionState::Disabled => IconColor::Disabled,
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_ => Default::default(),
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}
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}
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fn disclosure_control<V: 'static>(
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&mut self,
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cx: &mut ViewContext<V>,
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) -> Option<impl IntoElement<V>> {
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let theme = theme(cx);
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let token = token();
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let disclosure_control_icon = if let Some(ToggleState::Toggled) = self.toggle {
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IconElement::new(Icon::ChevronDown)
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} else {
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IconElement::new(Icon::ChevronRight)
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}
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.color(IconColor::Muted)
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.size(IconSize::Small);
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match (self.toggle, self.disclosure_control_style) {
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(Some(_), DisclosureControlVisibility::OnHover) => {
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Some(div().absolute().neg_left_5().child(disclosure_control_icon))
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}
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(Some(_), DisclosureControlVisibility::Always) => {
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Some(div().child(disclosure_control_icon))
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}
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(None, _) => None,
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}
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}
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fn render<V: 'static>(&mut self, _: &mut V, cx: &mut ViewContext<V>) -> impl IntoElement<V> {
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let theme = theme(cx);
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let token = token();
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let system_color = SystemColor::new();
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let background_color = self.background_color(cx);
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let left_content = match self.left_content {
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Some(LeftContent::Icon(i)) => {
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Some(h_stack().child(IconElement::new(i).size(IconSize::Small)))
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}
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Some(LeftContent::Avatar(src)) => Some(h_stack().child(Avatar::new(src))),
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None => None,
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};
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let sized_item = match self.size {
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ListEntrySize::Small => div().h_6(),
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ListEntrySize::Medium => div().h_7(),
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};
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div()
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.fill(background_color)
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.when(self.state == InteractionState::Focused, |this| {
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this.border()
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.border_color(theme.lowest.accent.default.border)
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})
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.relative()
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.py_1()
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.child(
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sized_item
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.when(self.variant == ListItemVariant::Inset, |this| this.px_2())
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// .ml(rems(0.75 * self.indent_level as f32))
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.children((0..self.indent_level).map(|_| {
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div()
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.w(token.list_indent_depth)
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.h_full()
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.flex()
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.justify_center()
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.child(h_stack().child(div().w_px().h_full()).child(
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div().w_px().h_full().fill(theme.middle.base.default.border),
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))
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}))
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.flex()
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.gap_1()
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.items_center()
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.relative()
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.children(self.disclosure_control(cx))
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.children(left_content)
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.child(self.label.clone()),
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)
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}
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}
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#[derive(Clone, Default, Element)]
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pub struct ListSeparator;
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impl ListSeparator {
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pub fn new() -> Self {
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Self::default()
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}
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fn render<V: 'static>(&mut self, _: &mut V, cx: &mut ViewContext<V>) -> impl IntoElement<V> {
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let theme = theme(cx);
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div().h_px().w_full().fill(theme.lowest.base.default.border)
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}
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}
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#[derive(Element)]
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pub struct List {
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items: Vec<ListItem>,
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empty_message: &'static str,
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header: Option<ListHeader>,
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toggleable: Toggleable,
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}
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impl List {
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pub fn new(items: Vec<ListItem>) -> Self {
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Self {
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items,
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empty_message: "No items",
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header: None,
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toggleable: Toggleable::default(),
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}
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}
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pub fn empty_message(mut self, empty_message: &'static str) -> Self {
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self.empty_message = empty_message;
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self
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}
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pub fn header(mut self, header: ListHeader) -> Self {
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self.header = Some(header);
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self
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}
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pub fn set_toggle(mut self, toggle: ToggleState) -> Self {
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self.toggleable = toggle.into();
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self
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}
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fn render<V: 'static>(&mut self, _: &mut V, cx: &mut ViewContext<V>) -> impl IntoElement<V> {
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let theme = theme(cx);
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let token = token();
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let is_toggleable = self.toggleable != Toggleable::NotToggleable;
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let is_toggled = Toggleable::is_toggled(&self.toggleable);
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let disclosure_control = if is_toggleable {
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IconElement::new(Icon::ChevronRight)
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} else {
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IconElement::new(Icon::ChevronDown)
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};
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let list_content = match (self.items.is_empty(), is_toggled) {
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(_, false) => div(),
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(false, _) => div().children(self.items.iter().cloned()),
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(true, _) => div().child(Label::new(self.empty_message).color(LabelColor::Muted)),
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};
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v_stack()
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.py_1()
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.children(
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self.header
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.clone()
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.map(|header| header.set_toggleable(self.toggleable)),
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)
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.child(list_content)
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}
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}
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