80f89059aa
Also change Zed's standard style to use `.track_focus(&self.focus_handle(cx))`, instead of `.track_focus(&self.focus_handle)`, to catch these kinds of errors more easily in the future. Release Notes: - N/A --------- Co-authored-by: Conrad <conrad@zed.dev>
64 lines
1.7 KiB
Rust
64 lines
1.7 KiB
Rust
use std::sync::Arc;
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use editor::{Editor, EditorEvent};
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use gpui::{prelude::*, AppContext, FocusHandle, FocusableView, View};
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use ui::prelude::*;
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/// The head of a [`Picker`](crate::Picker).
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pub(crate) enum Head {
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/// Picker has an editor that allows the user to filter the list.
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Editor(View<Editor>),
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/// Picker has no head, it's just a list of items.
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Empty(View<EmptyHead>),
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}
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impl Head {
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pub fn editor<V: 'static>(
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placeholder_text: Arc<str>,
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edit_handler: impl FnMut(&mut V, View<Editor>, &EditorEvent, &mut ViewContext<'_, V>) + 'static,
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cx: &mut ViewContext<V>,
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) -> Self {
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let editor = cx.new_view(|cx| {
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let mut editor = Editor::single_line(cx);
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editor.set_placeholder_text(placeholder_text, cx);
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editor
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});
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cx.subscribe(&editor, edit_handler).detach();
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Self::Editor(editor)
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}
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pub fn empty<V: 'static>(
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blur_handler: impl FnMut(&mut V, &mut ViewContext<'_, V>) + 'static,
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cx: &mut ViewContext<V>,
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) -> Self {
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let head = cx.new_view(EmptyHead::new);
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cx.on_blur(&head.focus_handle(cx), blur_handler).detach();
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Self::Empty(head)
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}
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}
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/// An invisible element that can hold focus.
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pub(crate) struct EmptyHead {
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focus_handle: FocusHandle,
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}
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impl EmptyHead {
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fn new(cx: &mut ViewContext<Self>) -> Self {
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Self {
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focus_handle: cx.focus_handle(),
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}
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}
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}
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impl Render for EmptyHead {
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fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
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div().track_focus(&self.focus_handle(cx))
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}
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}
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impl FocusableView for EmptyHead {
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fn focus_handle(&self, _: &AppContext) -> FocusHandle {
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self.focus_handle.clone()
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}
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}
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