385 lines
15 KiB
Rust
385 lines
15 KiB
Rust
use std::sync::Arc;
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use gpui2::{div, DefiniteLength, Hsla, MouseButton, WindowContext};
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use crate::{h_stack, Icon, IconColor, IconElement, Label, LabelColor};
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use crate::{prelude::*, LineHeightStyle};
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#[derive(Default, PartialEq, Clone, Copy)]
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pub enum IconPosition {
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#[default]
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Left,
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Right,
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}
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#[derive(Default, Copy, Clone, PartialEq)]
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pub enum ButtonVariant {
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#[default]
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Ghost,
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Filled,
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}
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impl ButtonVariant {
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pub fn bg_color(&self, cx: &mut WindowContext) -> Hsla {
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let theme = theme(cx);
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match self {
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ButtonVariant::Ghost => theme.ghost_element,
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ButtonVariant::Filled => theme.filled_element,
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}
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}
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pub fn bg_color_hover(&self, cx: &mut WindowContext) -> Hsla {
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let theme = theme(cx);
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match self {
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ButtonVariant::Ghost => theme.ghost_element_hover,
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ButtonVariant::Filled => theme.filled_element_hover,
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}
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}
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pub fn bg_color_active(&self, cx: &mut WindowContext) -> Hsla {
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let theme = theme(cx);
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match self {
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ButtonVariant::Ghost => theme.ghost_element_active,
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ButtonVariant::Filled => theme.filled_element_active,
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}
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}
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}
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pub type ClickHandler<S> = Arc<dyn Fn(&mut S, &mut ViewContext<S>) + Send + Sync>;
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struct ButtonHandlers<V: 'static> {
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click: Option<ClickHandler<V>>,
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}
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unsafe impl<S> Send for ButtonHandlers<S> {}
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unsafe impl<S> Sync for ButtonHandlers<S> {}
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impl<V: 'static> Default for ButtonHandlers<V> {
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fn default() -> Self {
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Self { click: None }
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}
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}
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#[derive(Component)]
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pub struct Button<V: 'static> {
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disabled: bool,
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handlers: ButtonHandlers<V>,
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icon: Option<Icon>,
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icon_position: Option<IconPosition>,
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label: SharedString,
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variant: ButtonVariant,
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width: Option<DefiniteLength>,
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}
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impl<V: 'static> Button<V> {
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pub fn new(label: impl Into<SharedString>) -> Self {
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Self {
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disabled: false,
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handlers: ButtonHandlers::default(),
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icon: None,
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icon_position: None,
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label: label.into(),
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variant: Default::default(),
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width: Default::default(),
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}
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}
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pub fn ghost(label: impl Into<SharedString>) -> Self {
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Self::new(label).variant(ButtonVariant::Ghost)
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}
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pub fn variant(mut self, variant: ButtonVariant) -> Self {
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self.variant = variant;
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self
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}
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pub fn icon(mut self, icon: Icon) -> Self {
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self.icon = Some(icon);
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self
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}
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pub fn icon_position(mut self, icon_position: IconPosition) -> Self {
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if self.icon.is_none() {
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panic!("An icon must be present if an icon_position is provided.");
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}
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self.icon_position = Some(icon_position);
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self
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}
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pub fn width(mut self, width: Option<DefiniteLength>) -> Self {
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self.width = width;
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self
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}
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pub fn on_click(mut self, handler: ClickHandler<V>) -> Self {
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self.handlers.click = Some(handler);
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self
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}
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pub fn disabled(mut self, disabled: bool) -> Self {
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self.disabled = disabled;
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self
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}
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fn label_color(&self) -> LabelColor {
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if self.disabled {
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LabelColor::Disabled
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} else {
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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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if self.disabled {
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IconColor::Disabled
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} else {
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Default::default()
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}
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}
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fn render_label(&self) -> Label {
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Label::new(self.label.clone())
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.color(self.label_color())
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.line_height_style(LineHeightStyle::UILabel)
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}
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fn render_icon(&self, icon_color: IconColor) -> Option<IconElement> {
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self.icon.map(|i| IconElement::new(i).color(icon_color))
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}
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pub fn render(self, _view: &mut V, cx: &mut ViewContext<V>) -> impl Component<V> {
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let icon_color = self.icon_color();
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let mut button = h_stack()
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.relative()
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.id(SharedString::from(format!("{}", self.label)))
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.p_1()
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.text_size(ui_size(cx, 1.))
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.rounded_md()
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.bg(self.variant.bg_color(cx))
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.hover(|style| style.bg(self.variant.bg_color_hover(cx)))
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.active(|style| style.bg(self.variant.bg_color_active(cx)));
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match (self.icon, self.icon_position) {
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(Some(_), Some(IconPosition::Left)) => {
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button = button
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.gap_1()
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.child(self.render_label())
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.children(self.render_icon(icon_color))
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}
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(Some(_), Some(IconPosition::Right)) => {
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button = button
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.gap_1()
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.children(self.render_icon(icon_color))
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.child(self.render_label())
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}
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(_, _) => button = button.child(self.render_label()),
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}
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if let Some(width) = self.width {
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button = button.w(width).justify_center();
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}
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if let Some(click_handler) = self.handlers.click.clone() {
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button = button.on_mouse_down(MouseButton::Left, move |state, event, cx| {
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click_handler(state, cx);
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});
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}
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button
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}
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}
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#[derive(Component)]
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pub struct ButtonGroup<V: 'static> {
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buttons: Vec<Button<V>>,
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}
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impl<V: 'static> ButtonGroup<V> {
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pub fn new(buttons: Vec<Button<V>>) -> Self {
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Self { buttons }
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}
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fn render(self, _view: &mut V, cx: &mut ViewContext<V>) -> impl Component<V> {
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let mut el = h_stack().text_size(ui_size(cx, 1.));
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for button in self.buttons {
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el = el.child(button.render(_view, cx));
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}
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el
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}
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}
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#[cfg(feature = "stories")]
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pub use stories::*;
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#[cfg(feature = "stories")]
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mod stories {
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use gpui2::rems;
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use strum::IntoEnumIterator;
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use crate::{h_stack, v_stack, LabelColor, Story};
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use super::*;
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#[derive(Component)]
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pub struct ButtonStory;
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impl ButtonStory {
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fn render<V: 'static>(self, _view: &mut V, cx: &mut ViewContext<V>) -> impl Component<V> {
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let states = InteractionState::iter();
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Story::container(cx)
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.child(Story::title_for::<_, Button<V>>(cx))
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.child(
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div()
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.flex()
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.gap_8()
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.child(
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div()
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.child(Story::label(cx, "Ghost (Default)"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label").variant(ButtonVariant::Ghost), // .state(state),
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)
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})))
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.child(Story::label(cx, "Ghost – Left Icon"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Ghost)
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.icon(Icon::Plus)
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.icon_position(IconPosition::Left), // .state(state),
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)
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})))
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.child(Story::label(cx, "Ghost – Right Icon"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Ghost)
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.icon(Icon::Plus)
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.icon_position(IconPosition::Right), // .state(state),
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)
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}))),
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)
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.child(
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div()
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.child(Story::label(cx, "Filled"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label").variant(ButtonVariant::Filled), // .state(state),
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)
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})))
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.child(Story::label(cx, "Filled – Left Button"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Filled)
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.icon(Icon::Plus)
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.icon_position(IconPosition::Left), // .state(state),
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)
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})))
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.child(Story::label(cx, "Filled – Right Button"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Filled)
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.icon(Icon::Plus)
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.icon_position(IconPosition::Right), // .state(state),
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)
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}))),
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)
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.child(
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div()
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.child(Story::label(cx, "Fixed With"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Filled)
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// .state(state)
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.width(Some(rems(6.).into())),
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)
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})))
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.child(Story::label(cx, "Fixed With – Left Icon"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Filled)
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// .state(state)
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.icon(Icon::Plus)
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.icon_position(IconPosition::Left)
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.width(Some(rems(6.).into())),
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)
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})))
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.child(Story::label(cx, "Fixed With – Right Icon"))
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.child(h_stack().gap_2().children(states.clone().map(|state| {
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v_stack()
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.gap_1()
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.child(
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Label::new(state.to_string()).color(LabelColor::Muted),
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)
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Filled)
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// .state(state)
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.icon(Icon::Plus)
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.icon_position(IconPosition::Right)
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.width(Some(rems(6.).into())),
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)
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}))),
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),
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)
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.child(Story::label(cx, "Button with `on_click`"))
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.child(
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Button::new("Label")
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.variant(ButtonVariant::Ghost)
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.on_click(Arc::new(|_view, _cx| println!("Button clicked."))),
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)
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}
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}
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}
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