use std::ops::Range; use crate::{    actions::Format, selections_collection::SelectionsCollection, Copy, CopyPermalinkToLine, Cut,    DisplayPoint, DisplaySnapshot, Editor, EditorMode, FindAllReferences, GoToDeclaration,    GoToDefinition, GoToImplementation, GoToTypeDefinition, Paste, Rename, RevealInFileManager,    SelectMode, ToDisplayPoint, ToggleCodeActions,};use gpui::prelude::FluentBuilder;use gpui::{DismissEvent, Pixels, Point, Subscription, View, ViewContext};use workspace::OpenInTerminal; #[derive(Debug)]pub enum MenuPosition {    /// When the editor is scrolled, the context menu stays on the exact    /// same position on the screen, never disappearing.    PinnedToScreen(Point<Pixels>),    /// When the editor is scrolled, the context menu follows the position it is associated with.    /// Disappears when the position is no longer visible.    PinnedToEditor {        source: multi_buffer::Anchor,        offset_x: Pixels,        offset_y: Pixels,    },} pub struct MouseContextMenu {    pub(crate) position: MenuPosition,    pub(crate) context_menu: View<ui::ContextMenu>,    _subscription: Subscription,} impl std::fmt::Debug for MouseContextMenu {    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {        f.debug_struct("MouseContextMenu")            .field("position", &self.position)            .field("context_menu", &self.context_menu)            .finish()    }} impl MouseContextMenu {    pub(crate) fn pinned_to_editor(        editor: &mut Editor,        source: multi_buffer::Anchor,        position: Point<Pixels>,        context_menu: View<ui::ContextMenu>,        cx: &mut ViewContext<Editor>,    ) -> Option<Self> {        let context_menu_focus = context_menu.focus_handle(cx);        cx.focus(&context_menu_focus);         let _subscription = cx.subscribe(            &context_menu,            move |editor, _, _event: &DismissEvent, cx| {                editor.mouse_context_menu.take();                if context_menu_focus.contains_focused(cx) {                    editor.focus(cx);                }            },        );         let editor_snapshot = editor.snapshot(cx);        let source_point = editor.to_pixel_point(source, &editor_snapshot, cx)?;        let offset = position - source_point;         Some(Self {            position: MenuPosition::PinnedToEditor {                source,                offset_x: offset.x,                offset_y: offset.y,            },            context_menu,            _subscription,        })    }     pub(crate) fn pinned_to_screen(        position: Point<Pixels>,        context_menu: View<ui::ContextMenu>,        cx: &mut ViewContext<Editor>,    ) -> Self {        let context_menu_focus = context_menu.focus_handle(cx);        cx.focus(&context_menu_focus);         let _subscription = cx.subscribe(            &context_menu,            move |editor, _, _event: &DismissEvent, cx| {                editor.mouse_context_menu.take();                if context_menu_focus.contains_focused(cx) {                    editor.focus(cx);                }            },        );         Self {            position: MenuPosition::PinnedToScreen(position),            context_menu,            _subscription,        }    }} fn display_ranges<'a>(    display_map: &'a DisplaySnapshot,    selections: &'a SelectionsCollection,) -> impl Iterator<Item = Range<DisplayPoint>> + 'a {    let pending = selections        .pending        .as_ref()        .map(|pending| &pending.selection);    selections        .disjoint        .iter()        .chain(pending)        .map(move |s| s.start.to_display_point(display_map)..s.end.to_display_point(display_map))} pub fn deploy_context_menu(    editor: &mut Editor,    position: Point<Pixels>,    point: DisplayPoint,    cx: &mut ViewContext<Editor>,) {    if !editor.is_focused(cx) {        editor.focus(cx);    }     // Don't show context menu for inline editors    if editor.mode() != EditorMode::Full {        return;    }     let display_map = editor.selections.display_map(cx);    let source_anchor = display_map.display_point_to_anchor(point, text::Bias::Right);    let context_menu = if let Some(custom) = editor.custom_context_menu.take() {        let menu = custom(editor, point, cx);        editor.custom_context_menu = Some(custom);        let Some(menu) = menu else {            return;        };        menu    } else {        // Don't show the context menu if there isn't a project associated with this editor        if editor.project.is_none() {            return;        }         let display_map = editor.selections.display_map(cx);        let buffer = &editor.snapshot(cx).buffer_snapshot;        let anchor = buffer.anchor_before(point.to_point(&display_map));        if !display_ranges(&display_map, &editor.selections).any(|r| r.contains(&point)) {            // Move the cursor to the clicked location so that dispatched actions make sense            editor.change_selections(None, cx, |s| {                s.clear_disjoint();                s.set_pending_anchor_range(anchor..anchor, SelectMode::Character);            });        }         let focus = cx.focused();        ui::ContextMenu::build(cx, |menu, _cx| {            let builder = menu                .on_blur_subscription(Subscription::new(|| {}))                .action("Go to Definition", Box::new(GoToDefinition))                .action("Go to Declaration", Box::new(GoToDeclaration))                .action("Go to Type Definition", Box::new(GoToTypeDefinition))                .action("Go to Implementation", Box::new(GoToImplementation))                .action("Find All References", Box::new(FindAllReferences))                .separator()                .action("Rename Symbol", Box::new(Rename))                .action("Format Buffer", Box::new(Format))                .action(                    "Code Actions",                    Box::new(ToggleCodeActions {                        deployed_from_indicator: None,                    }),                )                .separator()                .action("Cut", Box::new(Cut))                .action("Copy", Box::new(Copy))                .action("Paste", Box::new(Paste))                .separator()                .when(cfg!(target_os = "macos"), |builder| {                    builder.action("Reveal in Finder", Box::new(RevealInFileManager))                })                .when(cfg!(not(target_os = "macos")), |builder| {                    builder.action("Reveal in File Manager", Box::new(RevealInFileManager))                })                .action("Open in Terminal", Box::new(OpenInTerminal))                .action("Copy Permalink", Box::new(CopyPermalinkToLine));            match focus {                Some(focus) => builder.context(focus),                None => builder,            }        })    };     editor.mouse_context_menu =        MouseContextMenu::pinned_to_editor(editor, source_anchor, position, context_menu, cx);    cx.notify();} #[cfg(test)]mod tests {    use super::*;    use crate::{editor_tests::init_test, test::editor_lsp_test_context::EditorLspTestContext};    use indoc::indoc;     #[gpui::test]    async fn test_mouse_context_menu(cx: &mut gpui::TestAppContext) {        init_test(cx, |_| {});         let mut cx = EditorLspTestContext::new_rust(            lsp::ServerCapabilities {                hover_provider: Some(lsp::HoverProviderCapability::Simple(true)),                ..Default::default()            },            cx,        )        .await;         cx.set_state(indoc! {"            fn teˇst() {                do_work();            }        "});        let point = cx.display_point(indoc! {"            fn test() {                do_wˇork();            }        "});        cx.editor(|editor, _app| assert!(editor.mouse_context_menu.is_none()));        cx.update_editor(|editor, cx| deploy_context_menu(editor, Default::default(), point, cx));         cx.assert_editor_state(indoc! {"            fn test() {                do_wˇork();            }        "});        cx.editor(|editor, _app| assert!(editor.mouse_context_menu.is_some()));    }}