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
134        .pending
135        .as_ref()
136        .map(|pending| &pending.selection);
137    selections
138        .disjoint
139        .iter()
140        .chain(pending)
141        .map(move |s| s.start.to_display_point(display_map)..s.end.to_display_point(display_map))
142}
143
144pub fn deploy_context_menu(
145    editor: &mut Editor,
146    position: Option<Point<Pixels>>,
147    point: DisplayPoint,
148    window: &mut Window,
149    cx: &mut Context<Editor>,
150) {
151    if !editor.is_focused(window) {
152        window.focus(&editor.focus_handle(cx));
153    }
154
155    // Don't show context menu for inline editors
156    if !editor.mode().is_full() {
157        return;
158    }
159
160    let display_map = editor.selections.display_map(cx);
161    let source_anchor = display_map.display_point_to_anchor(point, text::Bias::Right);
162    let context_menu = if let Some(custom) = editor.custom_context_menu.take() {
163        let menu = custom(editor, point, window, cx);
164        editor.custom_context_menu = Some(custom);
165        let Some(menu) = menu else {
166            return;
167        };
168        menu
169    } else {
170        // Don't show the context menu if there isn't a project associated with this editor
171        let Some(project) = editor.project.clone() else {
172            return;
173        };
174
175        let display_map = editor.selections.display_map(cx);
176        let buffer = &editor.snapshot(window, cx).buffer_snapshot;
177        let anchor = buffer.anchor_before(point.to_point(&display_map));
178        if !display_ranges(&display_map, &editor.selections).any(|r| r.contains(&point)) {
179            // Move the cursor to the clicked location so that dispatched actions make sense
180            editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
181                s.clear_disjoint();
182                s.set_pending_anchor_range(anchor..anchor, SelectMode::Character);
183            });
184        }
185
186        let focus = window.focused(cx);
187        let has_reveal_target = editor.target_file(cx).is_some();
188        let has_selections = editor
189            .selections
190            .all::<PointUtf16>(cx)
191            .into_iter()
192            .any(|s| !s.is_empty());
193        let has_git_repo = buffer
194            .buffer_id_for_anchor(anchor)
195            .is_some_and(|buffer_id| {
196                project
197                    .read(cx)
198                    .git_store()
199                    .read(cx)
200                    .repository_and_path_for_buffer_id(buffer_id, cx)
201                    .is_some()
202            });
203
204        let evaluate_selection = window.is_action_available(&EvaluateSelectedText, cx);
205        let run_to_cursor = window.is_action_available(&RunToCursor, cx);
206
207        ui::ContextMenu::build(window, cx, |menu, _window, _cx| {
208            let builder = menu
209                .on_blur_subscription(Subscription::new(|| {}))
210                .when(run_to_cursor, |builder| {
211                    builder.action("Run to Cursor", Box::new(RunToCursor))
212                })
213                .when(evaluate_selection && has_selections, |builder| {
214                    builder.action("Evaluate Selection", Box::new(EvaluateSelectedText))
215                })
216                .when(
217                    run_to_cursor || (evaluate_selection && has_selections),
218                    |builder| builder.separator(),
219                )
220                .action("Go to Definition", Box::new(GoToDefinition))
221                .action("Go to Declaration", Box::new(GoToDeclaration))
222                .action("Go to Type Definition", Box::new(GoToTypeDefinition))
223                .action("Go to Implementation", Box::new(GoToImplementation))
224                .action("Find All References", Box::new(FindAllReferences))
225                .separator()
226                .action("Rename Symbol", Box::new(Rename))
227                .action("Format Buffer", Box::new(Format))
228                .when(has_selections, |cx| {
229                    cx.action("Format Selections", Box::new(FormatSelections))
230                })
231                .action(
232                    "Show Code Actions",
233                    Box::new(ToggleCodeActions {
234                        deployed_from: None,
235                        quick_launch: false,
236                    }),
237                )
238                .separator()
239                .action("Cut", Box::new(Cut))
240                .action("Copy", Box::new(Copy))
241                .action("Copy and Trim", Box::new(CopyAndTrim))
242                .action("Paste", Box::new(Paste))
243                .separator()
244                .action_disabled_when(
245                    !has_reveal_target,
246                    if cfg!(target_os = "macos") {
247                        "Reveal in Finder"
248                    } else {
249                        "Reveal in File Manager"
250                    },
251                    Box::new(RevealInFileManager),
252                )
253                .action_disabled_when(
254                    !has_reveal_target,
255                    "Open in Terminal",
256                    Box::new(OpenInTerminal),
257                )
258                .action_disabled_when(
259                    !has_git_repo,
260                    "Copy Permalink",
261                    Box::new(CopyPermalinkToLine),
262                );
263            match focus {
264                Some(focus) => builder.context(focus),
265                None => builder,
266            }
267        })
268    };
269
270    editor.mouse_context_menu = match position {
271        Some(position) => MouseContextMenu::pinned_to_editor(
272            editor,
273            source_anchor,
274            position,
275            context_menu,
276            window,
277            cx,
278        ),
279        None => {
280            let character_size = editor.character_dimensions(window);
281            let menu_position = MenuPosition::PinnedToEditor {
282                source: source_anchor,
283                offset: gpui::point(character_size.em_width, character_size.line_height),
284            };
285            Some(MouseContextMenu::new(
286                editor,
287                menu_position,
288                context_menu,
289                window,
290                cx,
291            ))
292        }
293    };
294    cx.notify();
295}
296
297#[cfg(test)]
298mod tests {
299    use super::*;
300    use crate::{editor_tests::init_test, test::editor_lsp_test_context::EditorLspTestContext};
301    use indoc::indoc;
302
303    #[gpui::test]
304    async fn test_mouse_context_menu(cx: &mut gpui::TestAppContext) {
305        init_test(cx, |_| {});
306
307        let mut cx = EditorLspTestContext::new_rust(
308            lsp::ServerCapabilities {
309                hover_provider: Some(lsp::HoverProviderCapability::Simple(true)),
310                ..Default::default()
311            },
312            cx,
313        )
314        .await;
315
316        cx.set_state(indoc! {"
317            fn teˇst() {
318                do_work();
319            }
320        "});
321        let point = cx.display_point(indoc! {"
322            fn test() {
323                do_wˇork();
324            }
325        "});
326        cx.editor(|editor, _window, _app| assert!(editor.mouse_context_menu.is_none()));
327        cx.update_editor(|editor, window, cx| {
328            deploy_context_menu(editor, Some(Default::default()), point, window, cx)
329        });
330
331        cx.assert_editor_state(indoc! {"
332            fn test() {
333                do_wˇork();
334            }
335        "});
336        cx.editor(|editor, _window, _app| assert!(editor.mouse_context_menu.is_some()));
337    }
338}