mouse_context_menu.rs

  1use std::ops::Range;
  2
  3use crate::{
  4    selections_collection::SelectionsCollection, Copy, CopyPermalinkToLine, Cut, DisplayPoint,
  5    DisplaySnapshot, Editor, EditorMode, FindAllReferences, GoToDefinition, GoToImplementation,
  6    GoToTypeDefinition, Paste, Rename, RevealInFileManager, SelectMode, ToDisplayPoint,
  7    ToggleCodeActions,
  8};
  9use gpui::prelude::FluentBuilder;
 10use gpui::{DismissEvent, Pixels, Point, Subscription, View, ViewContext};
 11use workspace::OpenInTerminal;
 12
 13pub enum MenuPosition {
 14    /// When the editor is scrolled, the context menu stays on the exact
 15    /// same position on the screen, never disappearing.
 16    PinnedToScreen(Point<Pixels>),
 17    /// When the editor is scrolled, the context menu follows the position it is associated with.
 18    /// Disappears when the position is no longer visible.
 19    PinnedToEditor {
 20        source: multi_buffer::Anchor,
 21        offset_x: Pixels,
 22        offset_y: Pixels,
 23    },
 24}
 25
 26pub struct MouseContextMenu {
 27    pub(crate) position: MenuPosition,
 28    pub(crate) context_menu: View<ui::ContextMenu>,
 29    _subscription: Subscription,
 30}
 31
 32impl MouseContextMenu {
 33    pub(crate) fn pinned_to_editor(
 34        editor: &mut Editor,
 35        source: multi_buffer::Anchor,
 36        position: Point<Pixels>,
 37        context_menu: View<ui::ContextMenu>,
 38        cx: &mut ViewContext<Editor>,
 39    ) -> Option<Self> {
 40        let context_menu_focus = context_menu.focus_handle(cx);
 41        cx.focus(&context_menu_focus);
 42
 43        let _subscription = cx.subscribe(
 44            &context_menu,
 45            move |editor, _, _event: &DismissEvent, cx| {
 46                editor.mouse_context_menu.take();
 47                if context_menu_focus.contains_focused(cx) {
 48                    editor.focus(cx);
 49                }
 50            },
 51        );
 52
 53        let editor_snapshot = editor.snapshot(cx);
 54        let source_point = editor.to_pixel_point(source, &editor_snapshot, cx)?;
 55        let offset = position - source_point;
 56
 57        Some(Self {
 58            position: MenuPosition::PinnedToEditor {
 59                source,
 60                offset_x: offset.x,
 61                offset_y: offset.y,
 62            },
 63            context_menu,
 64            _subscription,
 65        })
 66    }
 67
 68    pub(crate) fn pinned_to_screen(
 69        position: Point<Pixels>,
 70        context_menu: View<ui::ContextMenu>,
 71        cx: &mut ViewContext<Editor>,
 72    ) -> Self {
 73        let context_menu_focus = context_menu.focus_handle(cx);
 74        cx.focus(&context_menu_focus);
 75
 76        let _subscription = cx.subscribe(
 77            &context_menu,
 78            move |editor, _, _event: &DismissEvent, cx| {
 79                editor.mouse_context_menu.take();
 80                if context_menu_focus.contains_focused(cx) {
 81                    editor.focus(cx);
 82                }
 83            },
 84        );
 85
 86        Self {
 87            position: MenuPosition::PinnedToScreen(position),
 88            context_menu,
 89            _subscription,
 90        }
 91    }
 92}
 93
 94fn display_ranges<'a>(
 95    display_map: &'a DisplaySnapshot,
 96    selections: &'a SelectionsCollection,
 97) -> impl Iterator<Item = Range<DisplayPoint>> + 'a {
 98    let pending = selections
 99        .pending
100        .as_ref()
101        .map(|pending| &pending.selection);
102    selections
103        .disjoint
104        .iter()
105        .chain(pending)
106        .map(move |s| s.start.to_display_point(&display_map)..s.end.to_display_point(&display_map))
107}
108
109pub fn deploy_context_menu(
110    editor: &mut Editor,
111    position: Point<Pixels>,
112    point: DisplayPoint,
113    cx: &mut ViewContext<Editor>,
114) {
115    if !editor.is_focused(cx) {
116        editor.focus(cx);
117    }
118
119    // Don't show context menu for inline editors
120    if editor.mode() != EditorMode::Full {
121        return;
122    }
123
124    let display_map = editor.selections.display_map(cx);
125    let source_anchor = display_map.display_point_to_anchor(point, text::Bias::Right);
126    let context_menu = if let Some(custom) = editor.custom_context_menu.take() {
127        let menu = custom(editor, point, cx);
128        editor.custom_context_menu = Some(custom);
129        let Some(menu) = menu else {
130            return;
131        };
132        menu
133    } else {
134        // Don't show the context menu if there isn't a project associated with this editor
135        if editor.project.is_none() {
136            return;
137        }
138
139        let display_map = editor.selections.display_map(cx);
140        let buffer = &editor.snapshot(cx).buffer_snapshot;
141        let anchor = buffer.anchor_before(point.to_point(&display_map));
142        if !display_ranges(&display_map, &editor.selections).any(|r| r.contains(&point)) {
143            // Move the cursor to the clicked location so that dispatched actions make sense
144            editor.change_selections(None, cx, |s| {
145                s.clear_disjoint();
146                s.set_pending_anchor_range(anchor..anchor, SelectMode::Character);
147            });
148        }
149
150        let focus = cx.focused();
151        ui::ContextMenu::build(cx, |menu, _cx| {
152            let builder = menu
153                .on_blur_subscription(Subscription::new(|| {}))
154                .action("Rename Symbol", Box::new(Rename))
155                .action("Go to Definition", Box::new(GoToDefinition))
156                .action("Go to Type Definition", Box::new(GoToTypeDefinition))
157                .action("Go to Implementation", Box::new(GoToImplementation))
158                .action("Find All References", Box::new(FindAllReferences))
159                .action(
160                    "Code Actions",
161                    Box::new(ToggleCodeActions {
162                        deployed_from_indicator: None,
163                    }),
164                )
165                .separator()
166                .action("Cut", Box::new(Cut))
167                .action("Copy", Box::new(Copy))
168                .action("Paste", Box::new(Paste))
169                .separator()
170                .when(cfg!(target_os = "macos"), |builder| {
171                    builder.action("Reveal in Finder", Box::new(RevealInFileManager))
172                })
173                .when(cfg!(not(target_os = "macos")), |builder| {
174                    builder.action("Reveal in File Manager", Box::new(RevealInFileManager))
175                })
176                .action("Open in Terminal", Box::new(OpenInTerminal))
177                .action("Copy Permalink", Box::new(CopyPermalinkToLine));
178            match focus {
179                Some(focus) => builder.context(focus),
180                None => builder,
181            }
182        })
183    };
184
185    editor.mouse_context_menu =
186        MouseContextMenu::pinned_to_editor(editor, source_anchor, position, context_menu, cx);
187    cx.notify();
188}
189
190#[cfg(test)]
191mod tests {
192    use super::*;
193    use crate::{editor_tests::init_test, test::editor_lsp_test_context::EditorLspTestContext};
194    use indoc::indoc;
195
196    #[gpui::test]
197    async fn test_mouse_context_menu(cx: &mut gpui::TestAppContext) {
198        init_test(cx, |_| {});
199
200        let mut cx = EditorLspTestContext::new_rust(
201            lsp::ServerCapabilities {
202                hover_provider: Some(lsp::HoverProviderCapability::Simple(true)),
203                ..Default::default()
204            },
205            cx,
206        )
207        .await;
208
209        cx.set_state(indoc! {"
210            fn teˇst() {
211                do_work();
212            }
213        "});
214        let point = cx.display_point(indoc! {"
215            fn test() {
216                do_wˇork();
217            }
218        "});
219        cx.editor(|editor, _app| assert!(editor.mouse_context_menu.is_none()));
220        cx.update_editor(|editor, cx| deploy_context_menu(editor, Default::default(), point, cx));
221
222        cx.assert_editor_state(indoc! {"
223            fn test() {
224                do_wˇork();
225            }
226        "});
227        cx.editor(|editor, _app| assert!(editor.mouse_context_menu.is_some()));
228    }
229}