guise-ui 1.5.2

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.
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//! `Indicator` — a dot or count badge overlaid on a child element.

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

use crate::devtools::Probed;
use crate::theme::{theme, ColorName};

/// A corner indicator over any child.
#[derive(IntoElement)]
pub struct Indicator {
  child: AnyElement,
  label: Option<SharedString>,
  color: ColorName,
  disabled: bool,
}

impl Indicator {
  pub fn new(child: impl IntoElement) -> Self {
    Indicator {
      child: child.into_any_element(),
      label: None,
      color: ColorName::Red,
      disabled: false,
    }
  }

  /// Show a count/text instead of a plain dot.
  pub fn label(mut self, label: impl Into<SharedString>) -> Self {
    self.label = Some(label.into());
    self
  }

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

  /// Hide the indicator (but keep the child).
  pub fn disabled(mut self, disabled: bool) -> Self {
    self.disabled = disabled;
    self
  }
}

impl RenderOnce for Indicator {
  fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
    let t = theme(cx);
    let accent = t.color(self.color, t.primary_shade());
    let fg = accent.contrasting().hsla();
    let bg = accent.hsla();

    let mut root = div().relative().child(self.child);
    if !self.disabled {
      let dot = match self.label {
        Some(label) => div()
          .absolute()
          .top(px(-4.0))
          .right(px(-4.0))
          .h(px(16.0))
          .min_w(px(16.0))
          .px(px(4.0))
          .flex()
          .items_center()
          .justify_center()
          .rounded(px(16.0))
          .bg(bg)
          .text_color(fg)
          .text_size(px(10.0))
          .font_weight(FontWeight::BOLD)
          .child(label),
        None => div()
          .absolute()
          .top(px(-2.0))
          .right(px(-2.0))
          .w(px(10.0))
          .h(px(10.0))
          .rounded(px(10.0))
          .bg(bg),
      };
      root = root.child(dot);
    }
    root.probe("Indicator")
  }
}