gpui-component 0.6.0

GPUI Component: the styled component library of GPUI Kit, with 60+ desktop UI components for GPUI.
Documentation 
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use gpui::{
    App, Context, EventEmitter, FocusHandle, Focusable, IntoElement, ParentElement as _, Render,
    SharedString, Styled as _, Window, div,
};
use gpui_base::dock::{PanelEvent, PanelState};

use crate::{ActiveTheme as _, dock::Panel};

/// Stands in for a panel this build cannot construct — one whose
/// `panel_name` no [`PanelRegistry`](gpui_base::dock::PanelRegistry) builder
/// answers to.
///
/// It reports the original [`PanelState`] from
/// [`dump`](gpui_base::dock::Panel::dump), so a layout written by a build that
/// knows the panel survives a load and a save here rather than losing it.
pub(crate) struct InvalidPanel {
    name: SharedString,
    focus_handle: FocusHandle,
    old_state: PanelState,
}

impl InvalidPanel {
    pub(crate) fn new(
        name: impl Into<SharedString>,
        state: PanelState,
        cx: &mut Context<Self>,
    ) -> Self {
        Self {
            focus_handle: cx.focus_handle(),
            name: name.into(),
            old_state: state,
        }
    }
}

impl gpui_base::dock::Panel for InvalidPanel {
    fn panel_name(&self) -> &'static str {
        "InvalidPanel"
    }

    fn dump(&self, _: &App) -> PanelState {
        self.old_state.clone()
    }
}

impl Panel for InvalidPanel {}

impl EventEmitter<PanelEvent> for InvalidPanel {}

impl Focusable for InvalidPanel {
    fn focus_handle(&self, _: &App) -> FocusHandle {
        self.focus_handle.clone()
    }
}

impl Render for InvalidPanel {
    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        div()
            .size_full()
            .my_6()
            .flex()
            .flex_col()
            .items_center()
            .justify_center()
            .text_color(cx.theme().muted_foreground)
            .child(format!(
                "The `{}` panel type is not registered in PanelRegistry.",
                self.name.clone()
            ))
    }
}