mouse_context_menu.rs

  1use crate::{
  2    Copy, CopyAndTrim, CopyPermalinkToLine, Cut, DisplayPoint, DisplaySnapshot, Editor,
  3    EvaluateSelectedText, FindAllReferences, GoToDeclaration, GoToDefinition, GoToImplementation,
  4    GoToTypeDefinition, Paste, Rename, RevealInFileManager, RunToCursor, SelectMode,
  5    SelectionEffects, SelectionExt, ToDisplayPoint, ToggleCodeActions,
  6    actions::{Format, FormatSelections},
  7    selections_collection::SelectionsCollection,
  8};
  9use gpui::prelude::FluentBuilder;
 10use gpui::{Context, DismissEvent, Entity, Focusable as _, Pixels, Point, Subscription, Window};
 11use std::ops::Range;
 12use text::PointUtf16;
 13use workspace::OpenInTerminal;
 14
 15#[derive(Debug)]
 16pub enum MenuPosition {
 17    /// When the editor is scrolled, the context menu stays on the exact
 18    /// same position on the screen, never disappearing.
 19    PinnedToScreen(Point<Pixels>),
 20    /// When the editor is scrolled, the context menu follows the position it is associated with.
 21    /// Disappears when the position is no longer visible.
 22    PinnedToEditor {
 23        source: multi_buffer::Anchor,
 24        offset: Point<Pixels>,
 25    },
 26}
 27
 28pub struct MouseContextMenu {
 29    pub(crate) position: MenuPosition,
 30    pub(crate) context_menu: Entity<ui::ContextMenu>,
 31    _dismiss_subscription: Subscription,
 32    _cursor_move_subscription: Subscription,
 33}
 34
 35impl std::fmt::Debug for MouseContextMenu {
 36    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 37        f.debug_struct("MouseContextMenu")
 38            .field("position", &self.position)
 39            .field("context_menu", &self.context_menu)
 40            .finish()
 41    }
 42}
 43
 44impl MouseContextMenu {
 45    pub(crate) fn pinned_to_editor(
 46        editor: &mut Editor,
 47        source: multi_buffer::Anchor,
 48        position: Point<Pixels>,
 49        context_menu: Entity<ui::ContextMenu>,
 50        window: &mut Window,
 51        cx: &mut Context<Editor>,
 52    ) -> Option<Self> {
 53        let editor_snapshot = editor.snapshot(window, cx);
 54        let content_origin = editor.last_bounds?.origin
 55            + Point {
 56                x: editor.gutter_dimensions.width,
 57                y: Pixels(0.0),
 58            };
 59        let source_position = editor.to_pixel_point(source, &editor_snapshot, window)?;
 60        let menu_position = MenuPosition::PinnedToEditor {
 61            source,
 62            offset: position - (source_position + content_origin),
 63        };
 64        Some(MouseContextMenu::new(
 65            editor,
 66            menu_position,
 67            context_menu,
 68            window,
 69            cx,
 70        ))
 71    }
 72
 73    pub(crate) fn new(
 74        editor: &Editor,
 75        position: MenuPosition,
 76        context_menu: Entity<ui::ContextMenu>,
 77        window: &mut Window,
 78        cx: &mut Context<Editor>,
 79    ) -> Self {
 80        let context_menu_focus = context_menu.focus_handle(cx);
 81        window.focus(&context_menu_focus);
 82
 83        let _dismiss_subscription = cx.subscribe_in(&context_menu, window, {
 84            let context_menu_focus = context_menu_focus.clone();
 85            move |editor, _, _event: &DismissEvent, window, cx| {
 86                editor.mouse_context_menu.take();
 87                if context_menu_focus.contains_focused(window, cx) {
 88                    window.focus(&editor.focus_handle(cx));
 89                }
 90            }
 91        });
 92
 93        let selection_init = editor.selections.newest_anchor().clone();
 94
 95        let _cursor_move_subscription = cx.subscribe_in(
 96            &cx.entity(),
 97            window,
 98            move |editor, _, event: &crate::EditorEvent, window, cx| {
 99                let crate::EditorEvent::SelectionsChanged { local: true } = event else {
100                    return;
101                };
102                let display_snapshot = &editor
103                    .display_map
104                    .update(cx, |display_map, cx| display_map.snapshot(cx));
105                let selection_init_range = selection_init.display_range(display_snapshot);
106                let selection_now_range = editor
107                    .selections
108                    .newest_anchor()
109                    .display_range(display_snapshot);
110                if selection_now_range == selection_init_range {
111                    return;
112                }
113                editor.mouse_context_menu.take();
114                if context_menu_focus.contains_focused(window, cx) {
115                    window.focus(&editor.focus_handle(cx));
116                }
117            },
118        );
119
120        Self {
121            position,
122            context_menu,
123            _dismiss_subscription,
124            _cursor_move_subscription,
125        }
126    }
127}
128
129fn display_ranges<'a>(
130    display_map: &'a DisplaySnapshot,
131    selections: &'a SelectionsCollection,
132) -> impl Iterator<Item = Range<DisplayPoint>> + 'a {
133    let pending = selections.pending_anchor();
134    selections
135        .disjoint_anchors()
136        .iter()
137        .chain(pending)
138        .map(move |s| s.start.to_display_point(display_map)..s.end.to_display_point(display_map))
139}
140
141pub fn deploy_context_menu(
142    editor: &mut Editor,
143    position: Option<Point<Pixels>>,
144    point: DisplayPoint,
145    window: &mut Window,
146    cx: &mut Context<Editor>,
147) {
148    if !editor.is_focused(window) {
149        window.focus(&editor.focus_handle(cx));
150    }
151
152    // Don't show context menu for inline editors
153    if !editor.mode().is_full() {
154        return;
155    }
156
157    let display_map = editor.selections.display_map(cx);
158    let source_anchor = display_map.display_point_to_anchor(point, text::Bias::Right);
159    let context_menu = if let Some(custom) = editor.custom_context_menu.take() {
160        let menu = custom(editor, point, window, cx);
161        editor.custom_context_menu = Some(custom);
162        let Some(menu) = menu else {
163            return;
164        };
165        menu
166    } else {
167        // Don't show the context menu if there isn't a project associated with this editor
168        let Some(project) = editor.project.clone() else {
169            return;
170        };
171
172        let display_map = editor.selections.display_map(cx);
173        let buffer = &editor.snapshot(window, cx).buffer_snapshot;
174        let anchor = buffer.anchor_before(point.to_point(&display_map));
175        if !display_ranges(&display_map, &editor.selections).any(|r| r.contains(&point)) {
176            // Move the cursor to the clicked location so that dispatched actions make sense
177            editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
178                s.clear_disjoint();
179                s.set_pending_anchor_range(anchor..anchor, SelectMode::Character);
180            });
181        }
182
183        let focus = window.focused(cx);
184        let has_reveal_target = editor.target_file(cx).is_some();
185        let has_selections = editor
186            .selections
187            .all::<PointUtf16>(cx)
188            .into_iter()
189            .any(|s| !s.is_empty());
190        let has_git_repo = buffer
191            .buffer_id_for_anchor(anchor)
192            .is_some_and(|buffer_id| {
193                project
194                    .read(cx)
195                    .git_store()
196                    .read(cx)
197                    .repository_and_path_for_buffer_id(buffer_id, cx)
198                    .is_some()
199            });
200
201        let evaluate_selection = window.is_action_available(&EvaluateSelectedText, cx);
202        let run_to_cursor = window.is_action_available(&RunToCursor, cx);
203
204        ui::ContextMenu::build(window, cx, |menu, _window, _cx| {
205            let builder = menu
206                .on_blur_subscription(Subscription::new(|| {}))
207                .when(run_to_cursor, |builder| {
208                    builder.action("Run to Cursor", Box::new(RunToCursor))
209                })
210                .when(evaluate_selection && has_selections, |builder| {
211                    builder.action("Evaluate Selection", Box::new(EvaluateSelectedText))
212                })
213                .when(
214                    run_to_cursor || (evaluate_selection && has_selections),
215                    |builder| builder.separator(),
216                )
217                .action("Go to Definition", Box::new(GoToDefinition))
218                .action("Go to Declaration", Box::new(GoToDeclaration))
219                .action("Go to Type Definition", Box::new(GoToTypeDefinition))
220                .action("Go to Implementation", Box::new(GoToImplementation))
221                .action("Find All References", Box::new(FindAllReferences))
222                .separator()
223                .action("Rename Symbol", Box::new(Rename))
224                .action("Format Buffer", Box::new(Format))
225                .when(has_selections, |cx| {
226                    cx.action("Format Selections", Box::new(FormatSelections))
227                })
228                .action(
229                    "Show Code Actions",
230                    Box::new(ToggleCodeActions {
231                        deployed_from: None,
232                        quick_launch: false,
233                    }),
234                )
235                .separator()
236                .action("Cut", Box::new(Cut))
237                .action("Copy", Box::new(Copy))
238                .action("Copy and Trim", Box::new(CopyAndTrim))
239                .action("Paste", Box::new(Paste))
240                .separator()
241                .action_disabled_when(
242                    !has_reveal_target,
243                    if cfg!(target_os = "macos") {
244                        "Reveal in Finder"
245                    } else {
246                        "Reveal in File Manager"
247                    },
248                    Box::new(RevealInFileManager),
249                )
250                .action_disabled_when(
251                    !has_reveal_target,
252                    "Open in Terminal",
253                    Box::new(OpenInTerminal),
254                )
255                .action_disabled_when(
256                    !has_git_repo,
257                    "Copy Permalink",
258                    Box::new(CopyPermalinkToLine),
259                );
260            match focus {
261                Some(focus) => builder.context(focus),
262                None => builder,
263            }
264        })
265    };
266
267    editor.mouse_context_menu = match position {
268        Some(position) => MouseContextMenu::pinned_to_editor(
269            editor,
270            source_anchor,
271            position,
272            context_menu,
273            window,
274            cx,
275        ),
276        None => {
277            let character_size = editor.character_dimensions(window);
278            let menu_position = MenuPosition::PinnedToEditor {
279                source: source_anchor,
280                offset: gpui::point(character_size.em_width, character_size.line_height),
281            };
282            Some(MouseContextMenu::new(
283                editor,
284                menu_position,
285                context_menu,
286                window,
287                cx,
288            ))
289        }
290    };
291    cx.notify();
292}
293
294#[cfg(test)]
295mod tests {
296    use super::*;
297    use crate::{editor_tests::init_test, test::editor_lsp_test_context::EditorLspTestContext};
298    use indoc::indoc;
299
300    #[gpui::test]
301    async fn test_mouse_context_menu(cx: &mut gpui::TestAppContext) {
302        init_test(cx, |_| {});
303
304        let mut cx = EditorLspTestContext::new_rust(
305            lsp::ServerCapabilities {
306                hover_provider: Some(lsp::HoverProviderCapability::Simple(true)),
307                ..Default::default()
308            },
309            cx,
310        )
311        .await;
312
313        cx.set_state(indoc! {"
314            fn teˇst() {
315                do_work();
316            }
317        "});
318        let point = cx.display_point(indoc! {"
319            fn test() {
320                do_wˇork();
321            }
322        "});
323        cx.editor(|editor, _window, _app| assert!(editor.mouse_context_menu.is_none()));
324        cx.update_editor(|editor, window, cx| {
325            deploy_context_menu(editor, Some(Default::default()), point, window, cx)
326        });
327
328        cx.assert_editor_state(indoc! {"
329            fn test() {
330                do_wˇork();
331            }
332        "});
333        cx.editor(|editor, _window, _app| assert!(editor.mouse_context_menu.is_some()));
334    }
335}