guise-ui 1.5.3

A component library for gpui, Zed's GPU-accelerated UI framework: a themed palette, sizing tokens, 130+ composable components, a reactive state layer, and an in-app Safari-style inspector.
Documentation 
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//! `Alert` — an inline callout for info, success, warning, and error states.

use gpui::prelude::*;
use gpui::{div, px, App, ClickEvent, FontWeight, IntoElement, SharedString, Window};

use crate::devtools::Probed;
use crate::icon::Glyph;
use crate::input::ClickHandler;
use crate::style::{surface, ColorValue, Variant};
use crate::theme::{theme, Size};

/// A colored message callout.
#[derive(IntoElement)]
pub struct Alert {
  title: Option<SharedString>,
  message: SharedString,
  variant: Variant,
  color: ColorValue,
  icon: Option<Glyph>,
  on_close: Option<ClickHandler>,
}

impl Alert {
  pub fn new(message: impl Into<SharedString>) -> Self {
    Alert {
      title: None,
      message: message.into(),
      variant: Variant::Light,
      color: ColorValue::default(),
      icon: None,
      on_close: None,
    }
  }

  pub fn title(mut self, title: impl Into<SharedString>) -> Self {
    self.title = Some(title.into());
    self
  }

  pub fn variant(mut self, variant: Variant) -> Self {
    self.variant = variant;
    self
  }

  pub fn color(mut self, color: impl Into<ColorValue>) -> Self {
    self.color = color.into();
    self
  }

  /// A leading glyph (a Lucide [`IconName`](crate::IconName) or a character).
  pub fn icon(mut self, icon: impl Into<Glyph>) -> Self {
    self.icon = Some(icon.into());
    self
  }

  pub fn on_close(
    mut self,
    handler: impl Fn(&ClickEvent, &mut Window, &mut App) + 'static,
  ) -> Self {
    self.on_close = Some(Box::new(handler));
    self
  }
}

impl RenderOnce for Alert {
  fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
    let t = theme(cx);
    let s = surface(t, self.color, self.variant);
    let filled = self.variant == Variant::Filled;
    let body_color = if filled { s.fg } else { t.text().hsla() };
    let radius = t.radius(Size::Md);
    let pad = t.spacing(Size::Md);

    let mut content = div().flex().flex_col().gap(px(2.0)).flex_1();
    if let Some(title) = self.title {
      content = content.child(
        div()
          .font_weight(FontWeight::BOLD)
          .text_size(px(t.font_size(Size::Sm)))
          .text_color(s.fg)
          .child(title),
      );
    }
    content = content.child(
      div()
        .text_size(px(t.font_size(Size::Sm)))
        .text_color(body_color)
        .child(self.message),
    );

    let mut row = div()
      .flex()
      .items_start()
      .gap(px(10.0))
      .p(px(pad))
      .rounded(px(radius))
      .bg(s.bg);
    if let Some(border) = s.border {
      row = row.border_1().border_color(border);
    }
    if let Some(icon) = self.icon {
      row = row.child(
        div()
          .text_size(px(t.font_size(Size::Md)))
          .text_color(s.fg)
          .child(icon),
      );
    }
    row = row.child(content);
    if let Some(handler) = self.on_close {
      let close_color = if filled { s.fg } else { t.dimmed().hsla() };
      row = row.child(
        div()
          .id("guise-alert-close")
          .text_color(close_color)
          .child(SharedString::new_static("\u{00d7}"))
          .on_click(handler),
      );
    }
    row.probe("Alert").attr("variant", self.variant.label())
  }
}