2c7251e4f9
Release Notes: - Added settings status_bar.show_active_language_button to show/hide the language button in the status bar. The motivation for this is visual, I have had zero issues with its functionality. The language switcher can still be accessed by the command palette, menu, or a keyboard shortcut. ------ This is my first Zed and first Rust PR, so criticism is very welcome. I know there has been discussion around how the status bar settings are structured and named, and I am happy to change it to whatever is best. I was also not sure what order to put it in in the settings default.json. Feedback welcome. Here is a picture of it in action:  --------- Co-authored-by: zumbalogy <3770982+zumbalogy@users.noreply.github.com> Co-authored-by: Kirill Bulatov <kirill@zed.dev>
93 lines
3.1 KiB
Rust
93 lines
3.1 KiB
Rust
use editor::{Editor, EditorSettings};
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use gpui::{
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Context, Entity, IntoElement, ParentElement, Render, Subscription, WeakEntity, Window, div,
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};
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use language::LanguageName;
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use settings::Settings as _;
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use ui::{Button, ButtonCommon, Clickable, FluentBuilder, LabelSize, Tooltip};
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use workspace::{StatusItemView, Workspace, item::ItemHandle};
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use crate::{LanguageSelector, Toggle};
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pub struct ActiveBufferLanguage {
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active_language: Option<Option<LanguageName>>,
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workspace: WeakEntity<Workspace>,
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_observe_active_editor: Option<Subscription>,
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}
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impl ActiveBufferLanguage {
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pub fn new(workspace: &Workspace) -> Self {
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Self {
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active_language: None,
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workspace: workspace.weak_handle(),
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_observe_active_editor: None,
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}
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}
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fn update_language(&mut self, editor: Entity<Editor>, _: &mut Window, cx: &mut Context<Self>) {
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self.active_language = Some(None);
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let editor = editor.read(cx);
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if let Some((_, buffer, _)) = editor.active_excerpt(cx) {
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if let Some(language) = buffer.read(cx).language() {
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self.active_language = Some(Some(language.name()));
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}
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}
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cx.notify();
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}
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}
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impl Render for ActiveBufferLanguage {
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fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
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if !EditorSettings::get_global(cx)
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.status_bar
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.active_language_button
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{
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return div();
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}
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div().when_some(self.active_language.as_ref(), |el, active_language| {
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let active_language_text = if let Some(active_language_text) = active_language {
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active_language_text.to_string()
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} else {
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"Unknown".to_string()
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};
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el.child(
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Button::new("change-language", active_language_text)
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.label_size(LabelSize::Small)
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.on_click(cx.listener(|this, _, window, cx| {
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if let Some(workspace) = this.workspace.upgrade() {
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workspace.update(cx, |workspace, cx| {
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LanguageSelector::toggle(workspace, window, cx)
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});
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}
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}))
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.tooltip(|window, cx| {
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Tooltip::for_action("Select Language", &Toggle, window, cx)
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}),
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)
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})
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}
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}
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impl StatusItemView for ActiveBufferLanguage {
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fn set_active_pane_item(
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&mut self,
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active_pane_item: Option<&dyn ItemHandle>,
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window: &mut Window,
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cx: &mut Context<Self>,
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) {
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if let Some(editor) = active_pane_item.and_then(|item| item.downcast::<Editor>()) {
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self._observe_active_editor =
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Some(cx.observe_in(&editor, window, Self::update_language));
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self.update_language(editor, window, cx);
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} else {
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self.active_language = None;
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self._observe_active_editor = None;
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}
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cx.notify();
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}
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}
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