1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 display_map::{
4 BlockContext, BlockStyle, DisplaySnapshot, FoldStatus, HighlightedChunk, ToDisplayPoint,
5 TransformBlock,
6 },
7 editor_settings::{DoubleClickInMultibuffer, MultiCursorModifier, ShowScrollbar},
8 git::{blame::GitBlame, diff_hunk_to_display, DisplayDiffHunk},
9 hover_popover::{
10 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
11 },
12 items::BufferSearchHighlights,
13 mouse_context_menu::{self, MouseContextMenu},
14 scroll::scroll_amount::ScrollAmount,
15 CodeActionsMenu, CursorShape, DisplayPoint, DocumentHighlightRead, DocumentHighlightWrite,
16 Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts,
17 GutterDimensions, HalfPageDown, HalfPageUp, HoveredCursor, HunkToExpand, LineDown, LineUp,
18 OpenExcerpts, PageDown, PageUp, Point, SelectPhase, Selection, SoftWrap, ToPoint,
19 CURSORS_VISIBLE_FOR, MAX_LINE_LEN,
20};
21use anyhow::Result;
22use client::ParticipantIndex;
23use collections::{BTreeMap, HashMap, HashSet};
24use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
25use gpui::{
26 anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
27 transparent_black, Action, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClipboardItem,
28 ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
29 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, ModifiersChangedEvent,
30 MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels,
31 ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size, Stateful,
32 StatefulInteractiveElement, Style, Styled, TextRun, TextStyle, TextStyleRefinement, View,
33 ViewContext, WeakView, WindowContext,
34};
35use itertools::Itertools;
36use language::language_settings::ShowWhitespaceSetting;
37use lsp::DiagnosticSeverity;
38use multi_buffer::Anchor;
39use project::{
40 project_settings::{GitGutterSetting, ProjectSettings},
41 ProjectPath,
42};
43use settings::Settings;
44use smallvec::SmallVec;
45use std::{
46 any::TypeId,
47 borrow::Cow,
48 cmp::{self, max, Ordering},
49 fmt::Write,
50 iter, mem,
51 ops::{Deref, Range},
52 sync::Arc,
53};
54use sum_tree::Bias;
55use theme::{ActiveTheme, PlayerColor};
56use ui::prelude::*;
57use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
58use util::ResultExt;
59use workspace::{item::Item, Workspace};
60
61struct SelectionLayout {
62 head: DisplayPoint,
63 cursor_shape: CursorShape,
64 is_newest: bool,
65 is_local: bool,
66 range: Range<DisplayPoint>,
67 active_rows: Range<u32>,
68 user_name: Option<SharedString>,
69}
70
71impl SelectionLayout {
72 fn new<T: ToPoint + ToDisplayPoint + Clone>(
73 selection: Selection<T>,
74 line_mode: bool,
75 cursor_shape: CursorShape,
76 map: &DisplaySnapshot,
77 is_newest: bool,
78 is_local: bool,
79 user_name: Option<SharedString>,
80 ) -> Self {
81 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
82 let display_selection = point_selection.map(|p| p.to_display_point(map));
83 let mut range = display_selection.range();
84 let mut head = display_selection.head();
85 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
86 ..map.next_line_boundary(point_selection.end).1.row();
87
88 // vim visual line mode
89 if line_mode {
90 let point_range = map.expand_to_line(point_selection.range());
91 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
92 }
93
94 // any vim visual mode (including line mode)
95 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
96 && !range.is_empty()
97 && !selection.reversed
98 {
99 if head.column() > 0 {
100 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
101 } else if head.row() > 0 && head != map.max_point() {
102 head = map.clip_point(
103 DisplayPoint::new(head.row() - 1, map.line_len(head.row() - 1)),
104 Bias::Left,
105 );
106 // updating range.end is a no-op unless you're cursor is
107 // on the newline containing a multi-buffer divider
108 // in which case the clip_point may have moved the head up
109 // an additional row.
110 range.end = DisplayPoint::new(head.row() + 1, 0);
111 active_rows.end = head.row();
112 }
113 }
114
115 Self {
116 head,
117 cursor_shape,
118 is_newest,
119 is_local,
120 range,
121 active_rows,
122 user_name,
123 }
124 }
125}
126
127pub struct EditorElement {
128 editor: View<Editor>,
129 style: EditorStyle,
130}
131
132impl EditorElement {
133 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
134 Self {
135 editor: editor.clone(),
136 style,
137 }
138 }
139
140 fn register_actions(&self, cx: &mut WindowContext) {
141 let view = &self.editor;
142 view.update(cx, |editor, cx| {
143 for action in editor.editor_actions.iter() {
144 (action)(cx)
145 }
146 });
147
148 crate::rust_analyzer_ext::apply_related_actions(view, cx);
149 register_action(view, cx, Editor::move_left);
150 register_action(view, cx, Editor::move_right);
151 register_action(view, cx, Editor::move_down);
152 register_action(view, cx, Editor::move_down_by_lines);
153 register_action(view, cx, Editor::select_down_by_lines);
154 register_action(view, cx, Editor::move_up);
155 register_action(view, cx, Editor::move_up_by_lines);
156 register_action(view, cx, Editor::select_up_by_lines);
157 register_action(view, cx, Editor::cancel);
158 register_action(view, cx, Editor::newline);
159 register_action(view, cx, Editor::newline_above);
160 register_action(view, cx, Editor::newline_below);
161 register_action(view, cx, Editor::backspace);
162 register_action(view, cx, Editor::delete);
163 register_action(view, cx, Editor::tab);
164 register_action(view, cx, Editor::tab_prev);
165 register_action(view, cx, Editor::indent);
166 register_action(view, cx, Editor::outdent);
167 register_action(view, cx, Editor::delete_line);
168 register_action(view, cx, Editor::join_lines);
169 register_action(view, cx, Editor::sort_lines_case_sensitive);
170 register_action(view, cx, Editor::sort_lines_case_insensitive);
171 register_action(view, cx, Editor::reverse_lines);
172 register_action(view, cx, Editor::shuffle_lines);
173 register_action(view, cx, Editor::convert_to_upper_case);
174 register_action(view, cx, Editor::convert_to_lower_case);
175 register_action(view, cx, Editor::convert_to_title_case);
176 register_action(view, cx, Editor::convert_to_snake_case);
177 register_action(view, cx, Editor::convert_to_kebab_case);
178 register_action(view, cx, Editor::convert_to_upper_camel_case);
179 register_action(view, cx, Editor::convert_to_lower_camel_case);
180 register_action(view, cx, Editor::convert_to_opposite_case);
181 register_action(view, cx, Editor::delete_to_previous_word_start);
182 register_action(view, cx, Editor::delete_to_previous_subword_start);
183 register_action(view, cx, Editor::delete_to_next_word_end);
184 register_action(view, cx, Editor::delete_to_next_subword_end);
185 register_action(view, cx, Editor::delete_to_beginning_of_line);
186 register_action(view, cx, Editor::delete_to_end_of_line);
187 register_action(view, cx, Editor::cut_to_end_of_line);
188 register_action(view, cx, Editor::duplicate_line_up);
189 register_action(view, cx, Editor::duplicate_line_down);
190 register_action(view, cx, Editor::move_line_up);
191 register_action(view, cx, Editor::move_line_down);
192 register_action(view, cx, Editor::transpose);
193 register_action(view, cx, Editor::cut);
194 register_action(view, cx, Editor::copy);
195 register_action(view, cx, Editor::paste);
196 register_action(view, cx, Editor::undo);
197 register_action(view, cx, Editor::redo);
198 register_action(view, cx, Editor::move_page_up);
199 register_action(view, cx, Editor::move_page_down);
200 register_action(view, cx, Editor::next_screen);
201 register_action(view, cx, Editor::scroll_cursor_top);
202 register_action(view, cx, Editor::scroll_cursor_center);
203 register_action(view, cx, Editor::scroll_cursor_bottom);
204 register_action(view, cx, |editor, _: &LineDown, cx| {
205 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
206 });
207 register_action(view, cx, |editor, _: &LineUp, cx| {
208 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
209 });
210 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
211 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
212 });
213 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
214 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
215 });
216 register_action(view, cx, |editor, _: &PageDown, cx| {
217 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
218 });
219 register_action(view, cx, |editor, _: &PageUp, cx| {
220 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
221 });
222 register_action(view, cx, Editor::move_to_previous_word_start);
223 register_action(view, cx, Editor::move_to_previous_subword_start);
224 register_action(view, cx, Editor::move_to_next_word_end);
225 register_action(view, cx, Editor::move_to_next_subword_end);
226 register_action(view, cx, Editor::move_to_beginning_of_line);
227 register_action(view, cx, Editor::move_to_end_of_line);
228 register_action(view, cx, Editor::move_to_start_of_paragraph);
229 register_action(view, cx, Editor::move_to_end_of_paragraph);
230 register_action(view, cx, Editor::move_to_beginning);
231 register_action(view, cx, Editor::move_to_end);
232 register_action(view, cx, Editor::select_up);
233 register_action(view, cx, Editor::select_down);
234 register_action(view, cx, Editor::select_left);
235 register_action(view, cx, Editor::select_right);
236 register_action(view, cx, Editor::select_to_previous_word_start);
237 register_action(view, cx, Editor::select_to_previous_subword_start);
238 register_action(view, cx, Editor::select_to_next_word_end);
239 register_action(view, cx, Editor::select_to_next_subword_end);
240 register_action(view, cx, Editor::select_to_beginning_of_line);
241 register_action(view, cx, Editor::select_to_end_of_line);
242 register_action(view, cx, Editor::select_to_start_of_paragraph);
243 register_action(view, cx, Editor::select_to_end_of_paragraph);
244 register_action(view, cx, Editor::select_to_beginning);
245 register_action(view, cx, Editor::select_to_end);
246 register_action(view, cx, Editor::select_all);
247 register_action(view, cx, |editor, action, cx| {
248 editor.select_all_matches(action, cx).log_err();
249 });
250 register_action(view, cx, Editor::select_line);
251 register_action(view, cx, Editor::split_selection_into_lines);
252 register_action(view, cx, Editor::add_selection_above);
253 register_action(view, cx, Editor::add_selection_below);
254 register_action(view, cx, |editor, action, cx| {
255 editor.select_next(action, cx).log_err();
256 });
257 register_action(view, cx, |editor, action, cx| {
258 editor.select_previous(action, cx).log_err();
259 });
260 register_action(view, cx, Editor::toggle_comments);
261 register_action(view, cx, Editor::select_larger_syntax_node);
262 register_action(view, cx, Editor::select_smaller_syntax_node);
263 register_action(view, cx, Editor::move_to_enclosing_bracket);
264 register_action(view, cx, Editor::undo_selection);
265 register_action(view, cx, Editor::redo_selection);
266 if !view.read(cx).is_singleton(cx) {
267 register_action(view, cx, Editor::expand_excerpts);
268 }
269 register_action(view, cx, Editor::go_to_diagnostic);
270 register_action(view, cx, Editor::go_to_prev_diagnostic);
271 register_action(view, cx, Editor::go_to_hunk);
272 register_action(view, cx, Editor::go_to_prev_hunk);
273 register_action(view, cx, |editor, a, cx| {
274 editor.go_to_definition(a, cx).detach_and_log_err(cx);
275 });
276 register_action(view, cx, |editor, a, cx| {
277 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
278 });
279 register_action(view, cx, |editor, a, cx| {
280 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
281 });
282 register_action(view, cx, |editor, a, cx| {
283 editor
284 .go_to_implementation_split(a, cx)
285 .detach_and_log_err(cx);
286 });
287 register_action(view, cx, |editor, a, cx| {
288 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
289 });
290 register_action(view, cx, |editor, a, cx| {
291 editor
292 .go_to_type_definition_split(a, cx)
293 .detach_and_log_err(cx);
294 });
295 register_action(view, cx, Editor::open_url);
296 register_action(view, cx, Editor::fold);
297 register_action(view, cx, Editor::fold_at);
298 register_action(view, cx, Editor::unfold_lines);
299 register_action(view, cx, Editor::unfold_at);
300 register_action(view, cx, Editor::fold_selected_ranges);
301 register_action(view, cx, Editor::show_completions);
302 register_action(view, cx, Editor::toggle_code_actions);
303 register_action(view, cx, Editor::open_excerpts);
304 register_action(view, cx, Editor::open_excerpts_in_split);
305 register_action(view, cx, Editor::toggle_soft_wrap);
306 register_action(view, cx, Editor::toggle_line_numbers);
307 register_action(view, cx, Editor::toggle_inlay_hints);
308 register_action(view, cx, hover_popover::hover);
309 register_action(view, cx, Editor::reveal_in_finder);
310 register_action(view, cx, Editor::copy_path);
311 register_action(view, cx, Editor::copy_relative_path);
312 register_action(view, cx, Editor::copy_highlight_json);
313 register_action(view, cx, Editor::copy_permalink_to_line);
314 register_action(view, cx, Editor::open_permalink_to_line);
315 register_action(view, cx, Editor::toggle_git_blame);
316 register_action(view, cx, Editor::toggle_git_blame_inline);
317 register_action(view, cx, Editor::toggle_hunk_diff);
318 register_action(view, cx, Editor::expand_all_hunk_diffs);
319 register_action(view, cx, |editor, action, cx| {
320 if let Some(task) = editor.format(action, cx) {
321 task.detach_and_log_err(cx);
322 } else {
323 cx.propagate();
324 }
325 });
326 register_action(view, cx, Editor::restart_language_server);
327 register_action(view, cx, Editor::show_character_palette);
328 register_action(view, cx, |editor, action, cx| {
329 if let Some(task) = editor.confirm_completion(action, cx) {
330 task.detach_and_log_err(cx);
331 } else {
332 cx.propagate();
333 }
334 });
335 register_action(view, cx, |editor, action, cx| {
336 if let Some(task) = editor.confirm_code_action(action, cx) {
337 task.detach_and_log_err(cx);
338 } else {
339 cx.propagate();
340 }
341 });
342 register_action(view, cx, |editor, action, cx| {
343 if let Some(task) = editor.rename(action, cx) {
344 task.detach_and_log_err(cx);
345 } else {
346 cx.propagate();
347 }
348 });
349 register_action(view, cx, |editor, action, cx| {
350 if let Some(task) = editor.confirm_rename(action, cx) {
351 task.detach_and_log_err(cx);
352 } else {
353 cx.propagate();
354 }
355 });
356 register_action(view, cx, |editor, action, cx| {
357 if let Some(task) = editor.find_all_references(action, cx) {
358 task.detach_and_log_err(cx);
359 } else {
360 cx.propagate();
361 }
362 });
363 register_action(view, cx, Editor::next_inline_completion);
364 register_action(view, cx, Editor::previous_inline_completion);
365 register_action(view, cx, Editor::show_inline_completion);
366 register_action(view, cx, Editor::context_menu_first);
367 register_action(view, cx, Editor::context_menu_prev);
368 register_action(view, cx, Editor::context_menu_next);
369 register_action(view, cx, Editor::context_menu_last);
370 register_action(view, cx, Editor::display_cursor_names);
371 register_action(view, cx, Editor::unique_lines_case_insensitive);
372 register_action(view, cx, Editor::unique_lines_case_sensitive);
373 register_action(view, cx, Editor::accept_partial_inline_completion);
374 register_action(view, cx, Editor::revert_selected_hunks);
375 register_action(view, cx, Editor::open_active_item_in_terminal)
376 }
377
378 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
379 let position_map = layout.position_map.clone();
380 cx.on_key_event({
381 let editor = self.editor.clone();
382 let text_hitbox = layout.text_hitbox.clone();
383 move |event: &ModifiersChangedEvent, phase, cx| {
384 if phase != DispatchPhase::Bubble {
385 return;
386 }
387
388 editor.update(cx, |editor, cx| {
389 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
390 })
391 }
392 });
393 }
394
395 fn modifiers_changed(
396 editor: &mut Editor,
397 event: &ModifiersChangedEvent,
398 position_map: &PositionMap,
399 text_hitbox: &Hitbox,
400 cx: &mut ViewContext<Editor>,
401 ) {
402 let mouse_position = cx.mouse_position();
403 if !text_hitbox.is_hovered(cx) {
404 return;
405 }
406
407 editor.update_hovered_link(
408 position_map.point_for_position(text_hitbox.bounds, mouse_position),
409 &position_map.snapshot,
410 event.modifiers,
411 cx,
412 )
413 }
414
415 fn mouse_left_down(
416 editor: &mut Editor,
417 event: &MouseDownEvent,
418 hovered_hunk: Option<&HunkToExpand>,
419 position_map: &PositionMap,
420 text_hitbox: &Hitbox,
421 gutter_hitbox: &Hitbox,
422 cx: &mut ViewContext<Editor>,
423 ) {
424 if cx.default_prevented() {
425 return;
426 }
427
428 let mut click_count = event.click_count;
429 let mut modifiers = event.modifiers;
430
431 if let Some(hovered_hunk) = hovered_hunk {
432 editor.expand_diff_hunk(None, hovered_hunk, cx);
433 cx.notify();
434 return;
435 } else if gutter_hitbox.is_hovered(cx) {
436 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
437 } else if !text_hitbox.is_hovered(cx) {
438 return;
439 }
440
441 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
442 match EditorSettings::get_global(cx).double_click_in_multibuffer {
443 DoubleClickInMultibuffer::Select => {
444 // do nothing special on double click, all selection logic is below
445 }
446 DoubleClickInMultibuffer::Open => {
447 if modifiers.alt {
448 // if double click is made with alt, pretend it's a regular double click without opening and alt,
449 // and run the selection logic.
450 modifiers.alt = false;
451 } else {
452 // if double click is made without alt, open the corresponding excerp
453 editor.open_excerpts(&OpenExcerpts, cx);
454 return;
455 }
456 }
457 }
458 }
459
460 let point_for_position =
461 position_map.point_for_position(text_hitbox.bounds, event.position);
462 let position = point_for_position.previous_valid;
463 if modifiers.shift && modifiers.alt {
464 editor.select(
465 SelectPhase::BeginColumnar {
466 position,
467 goal_column: point_for_position.exact_unclipped.column(),
468 },
469 cx,
470 );
471 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
472 {
473 editor.select(
474 SelectPhase::Extend {
475 position,
476 click_count,
477 },
478 cx,
479 );
480 } else {
481 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
482 let multi_cursor_modifier = match multi_cursor_setting {
483 MultiCursorModifier::Alt => modifiers.alt,
484 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
485 };
486 editor.select(
487 SelectPhase::Begin {
488 position,
489 add: multi_cursor_modifier,
490 click_count,
491 },
492 cx,
493 );
494 }
495
496 cx.stop_propagation();
497 }
498
499 fn mouse_right_down(
500 editor: &mut Editor,
501 event: &MouseDownEvent,
502 position_map: &PositionMap,
503 text_hitbox: &Hitbox,
504 cx: &mut ViewContext<Editor>,
505 ) {
506 if !text_hitbox.is_hovered(cx) {
507 return;
508 }
509 let point_for_position =
510 position_map.point_for_position(text_hitbox.bounds, event.position);
511 mouse_context_menu::deploy_context_menu(
512 editor,
513 event.position,
514 point_for_position.previous_valid,
515 cx,
516 );
517 cx.stop_propagation();
518 }
519
520 fn mouse_middle_down(
521 editor: &mut Editor,
522 event: &MouseDownEvent,
523 position_map: &PositionMap,
524 text_hitbox: &Hitbox,
525 cx: &mut ViewContext<Editor>,
526 ) {
527 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
528 return;
529 }
530
531 if let Some(item) = cx.read_from_primary() {
532 let point_for_position =
533 position_map.point_for_position(text_hitbox.bounds, event.position);
534 let position = point_for_position.previous_valid;
535
536 editor.select(
537 SelectPhase::Begin {
538 position,
539 add: false,
540 click_count: 1,
541 },
542 cx,
543 );
544 editor.insert(item.text(), cx);
545 }
546 }
547
548 fn mouse_up(
549 editor: &mut Editor,
550 event: &MouseUpEvent,
551 position_map: &PositionMap,
552 text_hitbox: &Hitbox,
553 cx: &mut ViewContext<Editor>,
554 ) {
555 let end_selection = editor.has_pending_selection();
556 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
557
558 if end_selection {
559 editor.select(SelectPhase::End, cx);
560 }
561
562 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
563 let multi_cursor_modifier = match multi_cursor_setting {
564 MultiCursorModifier::Alt => event.modifiers.secondary(),
565 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
566 };
567
568 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
569 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
570 editor.handle_click_hovered_link(point, event.modifiers, cx);
571
572 cx.stop_propagation();
573 } else if end_selection {
574 cx.stop_propagation();
575 }
576 }
577
578 fn mouse_dragged(
579 editor: &mut Editor,
580 event: &MouseMoveEvent,
581 position_map: &PositionMap,
582 text_bounds: Bounds<Pixels>,
583 cx: &mut ViewContext<Editor>,
584 ) {
585 if !editor.has_pending_selection() {
586 return;
587 }
588
589 let point_for_position = position_map.point_for_position(text_bounds, event.position);
590 let mut scroll_delta = gpui::Point::<f32>::default();
591 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
592 let top = text_bounds.origin.y + vertical_margin;
593 let bottom = text_bounds.lower_left().y - vertical_margin;
594 if event.position.y < top {
595 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
596 }
597 if event.position.y > bottom {
598 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
599 }
600
601 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
602 let left = text_bounds.origin.x + horizontal_margin;
603 let right = text_bounds.upper_right().x - horizontal_margin;
604 if event.position.x < left {
605 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
606 }
607 if event.position.x > right {
608 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
609 }
610
611 editor.select(
612 SelectPhase::Update {
613 position: point_for_position.previous_valid,
614 goal_column: point_for_position.exact_unclipped.column(),
615 scroll_delta,
616 },
617 cx,
618 );
619 }
620
621 fn mouse_moved(
622 editor: &mut Editor,
623 event: &MouseMoveEvent,
624 position_map: &PositionMap,
625 text_hitbox: &Hitbox,
626 gutter_hitbox: &Hitbox,
627 cx: &mut ViewContext<Editor>,
628 ) {
629 let modifiers = event.modifiers;
630 let gutter_hovered = gutter_hitbox.is_hovered(cx);
631 editor.set_gutter_hovered(gutter_hovered, cx);
632
633 // Don't trigger hover popover if mouse is hovering over context menu
634 if text_hitbox.is_hovered(cx) {
635 let point_for_position =
636 position_map.point_for_position(text_hitbox.bounds, event.position);
637
638 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
639
640 if let Some(point) = point_for_position.as_valid() {
641 let anchor = position_map
642 .snapshot
643 .buffer_snapshot
644 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
645 hover_at(editor, Some(anchor), cx);
646 Self::update_visible_cursor(editor, point, position_map, cx);
647 } else {
648 hover_at(editor, None, cx);
649 }
650 } else {
651 editor.hide_hovered_link(cx);
652 hover_at(editor, None, cx);
653 if gutter_hovered {
654 cx.stop_propagation();
655 }
656 }
657 }
658
659 fn update_visible_cursor(
660 editor: &mut Editor,
661 point: DisplayPoint,
662 position_map: &PositionMap,
663 cx: &mut ViewContext<Editor>,
664 ) {
665 let snapshot = &position_map.snapshot;
666 let Some(hub) = editor.collaboration_hub() else {
667 return;
668 };
669 let range = DisplayPoint::new(point.row(), point.column().saturating_sub(1))
670 ..DisplayPoint::new(
671 point.row(),
672 (point.column() + 1).min(snapshot.line_len(point.row())),
673 );
674
675 let range = snapshot
676 .buffer_snapshot
677 .anchor_at(range.start.to_point(&snapshot.display_snapshot), Bias::Left)
678 ..snapshot
679 .buffer_snapshot
680 .anchor_at(range.end.to_point(&snapshot.display_snapshot), Bias::Right);
681
682 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
683 return;
684 };
685 let key = crate::HoveredCursor {
686 replica_id: selection.replica_id,
687 selection_id: selection.selection.id,
688 };
689 editor.hovered_cursors.insert(
690 key.clone(),
691 cx.spawn(|editor, mut cx| async move {
692 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
693 editor
694 .update(&mut cx, |editor, cx| {
695 editor.hovered_cursors.remove(&key);
696 cx.notify();
697 })
698 .ok();
699 }),
700 );
701 cx.notify()
702 }
703
704 fn layout_selections(
705 &self,
706 start_anchor: Anchor,
707 end_anchor: Anchor,
708 snapshot: &EditorSnapshot,
709 start_row: u32,
710 end_row: u32,
711 cx: &mut WindowContext,
712 ) -> (
713 Vec<(PlayerColor, Vec<SelectionLayout>)>,
714 BTreeMap<u32, bool>,
715 Option<DisplayPoint>,
716 ) {
717 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
718 let mut active_rows = BTreeMap::new();
719 let mut newest_selection_head = None;
720 let editor = self.editor.read(cx);
721
722 if editor.show_local_selections {
723 let mut local_selections: Vec<Selection<Point>> = editor
724 .selections
725 .disjoint_in_range(start_anchor..end_anchor, cx);
726 local_selections.extend(editor.selections.pending(cx));
727 let mut layouts = Vec::new();
728 let newest = editor.selections.newest(cx);
729 for selection in local_selections.drain(..) {
730 let is_empty = selection.start == selection.end;
731 let is_newest = selection == newest;
732
733 let layout = SelectionLayout::new(
734 selection,
735 editor.selections.line_mode,
736 editor.cursor_shape,
737 &snapshot.display_snapshot,
738 is_newest,
739 editor.leader_peer_id.is_none(),
740 None,
741 );
742 if is_newest {
743 newest_selection_head = Some(layout.head);
744 }
745
746 for row in cmp::max(layout.active_rows.start, start_row)
747 ..=cmp::min(layout.active_rows.end, end_row)
748 {
749 let contains_non_empty_selection = active_rows.entry(row).or_insert(!is_empty);
750 *contains_non_empty_selection |= !is_empty;
751 }
752 layouts.push(layout);
753 }
754
755 let player = if editor.read_only(cx) {
756 cx.theme().players().read_only()
757 } else {
758 self.style.local_player
759 };
760
761 selections.push((player, layouts));
762 }
763
764 if let Some(collaboration_hub) = &editor.collaboration_hub {
765 // When following someone, render the local selections in their color.
766 if let Some(leader_id) = editor.leader_peer_id {
767 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
768 if let Some(participant_index) = collaboration_hub
769 .user_participant_indices(cx)
770 .get(&collaborator.user_id)
771 {
772 if let Some((local_selection_style, _)) = selections.first_mut() {
773 *local_selection_style = cx
774 .theme()
775 .players()
776 .color_for_participant(participant_index.0);
777 }
778 }
779 }
780 }
781
782 let mut remote_selections = HashMap::default();
783 for selection in snapshot.remote_selections_in_range(
784 &(start_anchor..end_anchor),
785 collaboration_hub.as_ref(),
786 cx,
787 ) {
788 let selection_style = Self::get_participant_color(selection.participant_index, cx);
789
790 // Don't re-render the leader's selections, since the local selections
791 // match theirs.
792 if Some(selection.peer_id) == editor.leader_peer_id {
793 continue;
794 }
795 let key = HoveredCursor {
796 replica_id: selection.replica_id,
797 selection_id: selection.selection.id,
798 };
799
800 let is_shown =
801 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
802
803 remote_selections
804 .entry(selection.replica_id)
805 .or_insert((selection_style, Vec::new()))
806 .1
807 .push(SelectionLayout::new(
808 selection.selection,
809 selection.line_mode,
810 selection.cursor_shape,
811 &snapshot.display_snapshot,
812 false,
813 false,
814 if is_shown { selection.user_name } else { None },
815 ));
816 }
817
818 selections.extend(remote_selections.into_values());
819 }
820 (selections, active_rows, newest_selection_head)
821 }
822
823 #[allow(clippy::too_many_arguments)]
824 fn layout_folds(
825 &self,
826 snapshot: &EditorSnapshot,
827 content_origin: gpui::Point<Pixels>,
828 visible_anchor_range: Range<Anchor>,
829 visible_display_row_range: Range<u32>,
830 scroll_pixel_position: gpui::Point<Pixels>,
831 line_height: Pixels,
832 line_layouts: &[LineWithInvisibles],
833 cx: &mut WindowContext,
834 ) -> Vec<FoldLayout> {
835 snapshot
836 .folds_in_range(visible_anchor_range.clone())
837 .filter_map(|fold| {
838 let fold_range = fold.range.clone();
839 let display_range = fold.range.start.to_display_point(&snapshot)
840 ..fold.range.end.to_display_point(&snapshot);
841 debug_assert_eq!(display_range.start.row(), display_range.end.row());
842 let row = display_range.start.row();
843 debug_assert!(row < visible_display_row_range.end);
844 let line_layout = line_layouts
845 .get((row - visible_display_row_range.start) as usize)
846 .map(|l| &l.line)?;
847
848 let start_x = content_origin.x
849 + line_layout.x_for_index(display_range.start.column() as usize)
850 - scroll_pixel_position.x;
851 let start_y = content_origin.y + row as f32 * line_height - scroll_pixel_position.y;
852 let end_x = content_origin.x
853 + line_layout.x_for_index(display_range.end.column() as usize)
854 - scroll_pixel_position.x;
855
856 let fold_bounds = Bounds {
857 origin: point(start_x, start_y),
858 size: size(end_x - start_x, line_height),
859 };
860
861 let mut hover_element = div()
862 .id(fold.id)
863 .size_full()
864 .cursor_pointer()
865 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
866 .on_click(
867 cx.listener_for(&self.editor, move |editor: &mut Editor, _, cx| {
868 editor.unfold_ranges(
869 [fold_range.start..fold_range.end],
870 true,
871 false,
872 cx,
873 );
874 cx.stop_propagation();
875 }),
876 )
877 .into_any();
878 hover_element.prepaint_as_root(fold_bounds.origin, fold_bounds.size.into(), cx);
879 Some(FoldLayout {
880 display_range,
881 hover_element,
882 })
883 })
884 .collect()
885 }
886
887 fn collect_cursors(
888 &self,
889 snapshot: &EditorSnapshot,
890 cx: &mut WindowContext,
891 ) -> Vec<(DisplayPoint, Hsla)> {
892 let editor = self.editor.read(cx);
893 let mut cursors = Vec::new();
894 let mut skip_local = false;
895 let mut add_cursor = |anchor: Anchor, color| {
896 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
897 };
898 // Remote cursors
899 if let Some(collaboration_hub) = &editor.collaboration_hub {
900 for remote_selection in snapshot.remote_selections_in_range(
901 &(Anchor::min()..Anchor::max()),
902 collaboration_hub.deref(),
903 cx,
904 ) {
905 let color = Self::get_participant_color(remote_selection.participant_index, cx);
906 add_cursor(remote_selection.selection.head(), color.cursor);
907 if Some(remote_selection.peer_id) == editor.leader_peer_id {
908 skip_local = true;
909 }
910 }
911 }
912 // Local cursors
913 if !skip_local {
914 let color = cx.theme().players().local().cursor;
915 editor.selections.disjoint.iter().for_each(|selection| {
916 add_cursor(selection.head(), color);
917 });
918 if let Some(ref selection) = editor.selections.pending_anchor() {
919 add_cursor(selection.head(), color);
920 }
921 }
922 cursors
923 }
924
925 #[allow(clippy::too_many_arguments)]
926 fn layout_visible_cursors(
927 &self,
928 snapshot: &EditorSnapshot,
929 selections: &[(PlayerColor, Vec<SelectionLayout>)],
930 visible_display_row_range: Range<u32>,
931 line_layouts: &[LineWithInvisibles],
932 text_hitbox: &Hitbox,
933 content_origin: gpui::Point<Pixels>,
934 scroll_position: gpui::Point<f32>,
935 scroll_pixel_position: gpui::Point<Pixels>,
936 line_height: Pixels,
937 em_width: Pixels,
938 autoscroll_containing_element: bool,
939 cx: &mut WindowContext,
940 ) -> Vec<CursorLayout> {
941 let mut autoscroll_bounds = None;
942 let cursor_layouts = self.editor.update(cx, |editor, cx| {
943 let mut cursors = Vec::new();
944 for (player_color, selections) in selections {
945 for selection in selections {
946 let cursor_position = selection.head;
947
948 let in_range = visible_display_row_range.contains(&cursor_position.row());
949 if (selection.is_local && !editor.show_local_cursors(cx)) || !in_range {
950 continue;
951 }
952
953 let cursor_row_layout = &line_layouts
954 [(cursor_position.row() - visible_display_row_range.start) as usize]
955 .line;
956 let cursor_column = cursor_position.column() as usize;
957
958 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
959 let mut block_width =
960 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
961 if block_width == Pixels::ZERO {
962 block_width = em_width;
963 }
964 let block_text = if let CursorShape::Block = selection.cursor_shape {
965 snapshot.display_chars_at(cursor_position).next().and_then(
966 |(character, _)| {
967 let text = if character == '\n' {
968 SharedString::from(" ")
969 } else {
970 SharedString::from(character.to_string())
971 };
972 let len = text.len();
973
974 let font = cursor_row_layout
975 .font_id_for_index(cursor_column)
976 .and_then(|cursor_font_id| {
977 cx.text_system().get_font_for_id(cursor_font_id)
978 })
979 .unwrap_or(self.style.text.font());
980
981 cx.text_system()
982 .shape_line(
983 text,
984 cursor_row_layout.font_size,
985 &[TextRun {
986 len,
987 font,
988 color: self.style.background,
989 background_color: None,
990 strikethrough: None,
991 underline: None,
992 }],
993 )
994 .log_err()
995 },
996 )
997 } else {
998 None
999 };
1000
1001 let x = cursor_character_x - scroll_pixel_position.x;
1002 let y = (cursor_position.row() as f32 - scroll_pixel_position.y / line_height)
1003 * line_height;
1004 if selection.is_newest {
1005 editor.pixel_position_of_newest_cursor = Some(point(
1006 text_hitbox.origin.x + x + block_width / 2.,
1007 text_hitbox.origin.y + y + line_height / 2.,
1008 ));
1009
1010 if autoscroll_containing_element {
1011 let top = text_hitbox.origin.y
1012 + (cursor_position.row() as f32 - scroll_position.y - 3.).max(0.)
1013 * line_height;
1014 let left = text_hitbox.origin.x
1015 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1016 .max(0.)
1017 * em_width;
1018
1019 let bottom = text_hitbox.origin.y
1020 + (cursor_position.row() as f32 - scroll_position.y + 4.)
1021 * line_height;
1022 let right = text_hitbox.origin.x
1023 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1024 * em_width;
1025
1026 autoscroll_bounds =
1027 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1028 }
1029 }
1030
1031 let mut cursor = CursorLayout {
1032 color: player_color.cursor,
1033 block_width,
1034 origin: point(x, y),
1035 line_height,
1036 shape: selection.cursor_shape,
1037 block_text,
1038 cursor_name: None,
1039 };
1040 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1041 string: name,
1042 color: self.style.background,
1043 is_top_row: cursor_position.row() == 0,
1044 });
1045 cursor.layout(content_origin, cursor_name, cx);
1046 cursors.push(cursor);
1047 }
1048 }
1049 cursors
1050 });
1051
1052 if let Some(bounds) = autoscroll_bounds {
1053 cx.request_autoscroll(bounds);
1054 }
1055
1056 cursor_layouts
1057 }
1058
1059 fn layout_scrollbar(
1060 &self,
1061 snapshot: &EditorSnapshot,
1062 bounds: Bounds<Pixels>,
1063 scroll_position: gpui::Point<f32>,
1064 rows_per_page: f32,
1065 non_visible_cursors: bool,
1066 cx: &mut WindowContext,
1067 ) -> Option<ScrollbarLayout> {
1068 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1069 let show_scrollbars = match scrollbar_settings.show {
1070 ShowScrollbar::Auto => {
1071 let editor = self.editor.read(cx);
1072 let is_singleton = editor.is_singleton(cx);
1073 // Git
1074 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1075 ||
1076 // Buffer Search Results
1077 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1078 ||
1079 // Selected Symbol Occurrences
1080 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1081 ||
1082 // Diagnostics
1083 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1084 ||
1085 // Cursors out of sight
1086 non_visible_cursors
1087 ||
1088 // Scrollmanager
1089 editor.scroll_manager.scrollbars_visible()
1090 }
1091 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1092 ShowScrollbar::Always => true,
1093 ShowScrollbar::Never => false,
1094 };
1095 if snapshot.mode != EditorMode::Full {
1096 return None;
1097 }
1098
1099 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1100
1101 // If a drag took place after we started dragging the scrollbar,
1102 // cancel the scrollbar drag.
1103 if cx.has_active_drag() {
1104 self.editor.update(cx, |editor, cx| {
1105 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1106 });
1107 }
1108
1109 let track_bounds = Bounds::from_corners(
1110 point(self.scrollbar_left(&bounds), bounds.origin.y),
1111 point(bounds.lower_right().x, bounds.lower_left().y),
1112 );
1113
1114 let height = bounds.size.height;
1115 let total_rows = snapshot.max_point().row() as f32 + rows_per_page;
1116 let px_per_row = height / total_rows;
1117 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1118 let row_height = (height - thumb_height) / snapshot.max_point().row() as f32;
1119
1120 Some(ScrollbarLayout {
1121 hitbox: cx.insert_hitbox(track_bounds, false),
1122 visible_row_range,
1123 row_height,
1124 visible: show_scrollbars,
1125 thumb_height,
1126 })
1127 }
1128
1129 #[allow(clippy::too_many_arguments)]
1130 fn layout_gutter_fold_indicators(
1131 &self,
1132 fold_statuses: Vec<Option<(FoldStatus, u32, bool)>>,
1133 line_height: Pixels,
1134 gutter_dimensions: &GutterDimensions,
1135 gutter_settings: crate::editor_settings::Gutter,
1136 scroll_pixel_position: gpui::Point<Pixels>,
1137 gutter_hitbox: &Hitbox,
1138 cx: &mut WindowContext,
1139 ) -> Vec<Option<AnyElement>> {
1140 let mut indicators = self.editor.update(cx, |editor, cx| {
1141 editor.render_fold_indicators(
1142 fold_statuses,
1143 &self.style,
1144 editor.gutter_hovered,
1145 line_height,
1146 gutter_dimensions.margin,
1147 cx,
1148 )
1149 });
1150
1151 for (ix, fold_indicator) in indicators.iter_mut().enumerate() {
1152 if let Some(fold_indicator) = fold_indicator {
1153 debug_assert!(gutter_settings.folds);
1154 let available_space = size(
1155 AvailableSpace::MinContent,
1156 AvailableSpace::Definite(line_height * 0.55),
1157 );
1158 let fold_indicator_size = fold_indicator.layout_as_root(available_space, cx);
1159
1160 let position = point(
1161 gutter_dimensions.width - gutter_dimensions.right_padding,
1162 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1163 );
1164 let centering_offset = point(
1165 (gutter_dimensions.right_padding + gutter_dimensions.margin
1166 - fold_indicator_size.width)
1167 / 2.,
1168 (line_height - fold_indicator_size.height) / 2.,
1169 );
1170 let origin = gutter_hitbox.origin + position + centering_offset;
1171 fold_indicator.prepaint_as_root(origin, available_space, cx);
1172 }
1173 }
1174
1175 indicators
1176 }
1177
1178 // Folds contained in a hunk are ignored apart from shrinking visual size
1179 // If a fold contains any hunks then that fold line is marked as modified
1180 fn layout_git_gutters(
1181 &self,
1182 line_height: Pixels,
1183 gutter_hitbox: &Hitbox,
1184 display_rows: Range<u32>,
1185 snapshot: &EditorSnapshot,
1186 cx: &mut WindowContext,
1187 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1188 let buffer_snapshot = &snapshot.buffer_snapshot;
1189
1190 let buffer_start_row = DisplayPoint::new(display_rows.start, 0)
1191 .to_point(snapshot)
1192 .row;
1193 let buffer_end_row = DisplayPoint::new(display_rows.end, 0)
1194 .to_point(snapshot)
1195 .row;
1196
1197 let expanded_hunk_display_rows = self.editor.update(cx, |editor, _| {
1198 editor
1199 .expanded_hunks
1200 .hunks(false)
1201 .map(|expanded_hunk| {
1202 let start_row = expanded_hunk
1203 .hunk_range
1204 .start
1205 .to_display_point(snapshot)
1206 .row();
1207 let end_row = expanded_hunk
1208 .hunk_range
1209 .end
1210 .to_display_point(snapshot)
1211 .row();
1212 (start_row, end_row)
1213 })
1214 .collect::<HashMap<_, _>>()
1215 });
1216
1217 buffer_snapshot
1218 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1219 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
1220 .dedup()
1221 .map(|hunk| {
1222 let hitbox = if let DisplayDiffHunk::Unfolded {
1223 display_row_range, ..
1224 } = &hunk
1225 {
1226 let was_expanded = expanded_hunk_display_rows
1227 .get(&display_row_range.start)
1228 .map(|expanded_end_row| expanded_end_row == &display_row_range.end)
1229 .unwrap_or(false);
1230 if was_expanded {
1231 None
1232 } else {
1233 let hunk_bounds = Self::diff_hunk_bounds(
1234 &snapshot,
1235 line_height,
1236 gutter_hitbox.bounds,
1237 &hunk,
1238 );
1239 Some(cx.insert_hitbox(hunk_bounds, true))
1240 }
1241 } else {
1242 None
1243 };
1244 (hunk, hitbox)
1245 })
1246 .collect()
1247 }
1248
1249 #[allow(clippy::too_many_arguments)]
1250 fn layout_inline_blame(
1251 &self,
1252 display_row: u32,
1253 display_snapshot: &DisplaySnapshot,
1254 line_layout: &LineWithInvisibles,
1255 em_width: Pixels,
1256 content_origin: gpui::Point<Pixels>,
1257 scroll_pixel_position: gpui::Point<Pixels>,
1258 line_height: Pixels,
1259 cx: &mut WindowContext,
1260 ) -> Option<AnyElement> {
1261 if !self
1262 .editor
1263 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1264 {
1265 return None;
1266 }
1267
1268 let workspace = self
1269 .editor
1270 .read(cx)
1271 .workspace
1272 .as_ref()
1273 .map(|(w, _)| w.clone());
1274
1275 let display_point = DisplayPoint::new(display_row, 0);
1276 let buffer_row = display_point.to_point(display_snapshot).row;
1277
1278 let blame = self.editor.read(cx).blame.clone()?;
1279 let blame_entry = blame
1280 .update(cx, |blame, cx| {
1281 blame.blame_for_rows([Some(buffer_row)], cx).next()
1282 })
1283 .flatten()?;
1284
1285 let mut element =
1286 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1287
1288 let start_y = content_origin.y
1289 + line_height * (display_row as f32 - scroll_pixel_position.y / line_height);
1290
1291 let start_x = {
1292 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1293
1294 let padded_line_width =
1295 line_layout.line.width + (em_width * INLINE_BLAME_PADDING_EM_WIDTHS);
1296
1297 let min_column = ProjectSettings::get_global(cx)
1298 .git
1299 .inline_blame
1300 .and_then(|settings| settings.min_column)
1301 .map(|col| self.column_pixels(col as usize, cx))
1302 .unwrap_or(px(0.));
1303
1304 (content_origin.x - scroll_pixel_position.x) + max(padded_line_width, min_column)
1305 };
1306
1307 let absolute_offset = point(start_x, start_y);
1308 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1309
1310 element.prepaint_as_root(absolute_offset, available_space, cx);
1311
1312 Some(element)
1313 }
1314
1315 #[allow(clippy::too_many_arguments)]
1316 fn layout_blame_entries(
1317 &self,
1318 buffer_rows: impl Iterator<Item = Option<u32>>,
1319 em_width: Pixels,
1320 scroll_position: gpui::Point<f32>,
1321 line_height: Pixels,
1322 gutter_hitbox: &Hitbox,
1323 max_width: Option<Pixels>,
1324 cx: &mut WindowContext,
1325 ) -> Option<Vec<AnyElement>> {
1326 if !self
1327 .editor
1328 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1329 {
1330 return None;
1331 }
1332
1333 let blame = self.editor.read(cx).blame.clone()?;
1334 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1335 blame.blame_for_rows(buffer_rows, cx).collect()
1336 });
1337
1338 let width = if let Some(max_width) = max_width {
1339 AvailableSpace::Definite(max_width)
1340 } else {
1341 AvailableSpace::MaxContent
1342 };
1343 let scroll_top = scroll_position.y * line_height;
1344 let start_x = em_width * 1;
1345
1346 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1347
1348 let shaped_lines = blamed_rows
1349 .into_iter()
1350 .enumerate()
1351 .flat_map(|(ix, blame_entry)| {
1352 if let Some(blame_entry) = blame_entry {
1353 let mut element = render_blame_entry(
1354 ix,
1355 &blame,
1356 blame_entry,
1357 &self.style,
1358 &mut last_used_color,
1359 self.editor.clone(),
1360 cx,
1361 );
1362
1363 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1364 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1365
1366 element.prepaint_as_root(
1367 absolute_offset,
1368 size(width, AvailableSpace::MinContent),
1369 cx,
1370 );
1371
1372 Some(element)
1373 } else {
1374 None
1375 }
1376 })
1377 .collect();
1378
1379 Some(shaped_lines)
1380 }
1381
1382 fn layout_run_indicators(
1383 &self,
1384 line_height: Pixels,
1385 scroll_pixel_position: gpui::Point<Pixels>,
1386 gutter_dimensions: &GutterDimensions,
1387 gutter_hitbox: &Hitbox,
1388 snapshot: &EditorSnapshot,
1389 cx: &mut WindowContext,
1390 ) -> Vec<AnyElement> {
1391 self.editor.update(cx, |editor, cx| {
1392 let active_task_indicator_row =
1393 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1394 deployed_from_indicator,
1395 actions,
1396 ..
1397 })) = editor.context_menu.read().as_ref()
1398 {
1399 actions
1400 .tasks
1401 .as_ref()
1402 .map(|tasks| tasks.position.row)
1403 .or_else(|| *deployed_from_indicator)
1404 } else {
1405 None
1406 };
1407 editor
1408 .tasks
1409 .keys()
1410 .map(|row| {
1411 let button = editor.render_run_indicator(
1412 &self.style,
1413 Some(*row) == active_task_indicator_row,
1414 *row,
1415 cx,
1416 );
1417 let display_row = Point::new(*row, 0)
1418 .to_display_point(&snapshot.display_snapshot)
1419 .row();
1420 let button = prepaint_gutter_button(
1421 button,
1422 display_row,
1423 line_height,
1424 gutter_dimensions,
1425 scroll_pixel_position,
1426 gutter_hitbox,
1427 cx,
1428 );
1429 button
1430 })
1431 .collect_vec()
1432 })
1433 }
1434
1435 fn layout_code_actions_indicator(
1436 &self,
1437 line_height: Pixels,
1438 newest_selection_head: DisplayPoint,
1439 scroll_pixel_position: gpui::Point<Pixels>,
1440 gutter_dimensions: &GutterDimensions,
1441 gutter_hitbox: &Hitbox,
1442 cx: &mut WindowContext,
1443 ) -> Option<AnyElement> {
1444 let mut active = false;
1445 let mut button = None;
1446 let row = newest_selection_head.row();
1447 self.editor.update(cx, |editor, cx| {
1448 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1449 deployed_from_indicator,
1450 ..
1451 })) = editor.context_menu.read().as_ref()
1452 {
1453 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1454 };
1455 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1456 });
1457
1458 let button = prepaint_gutter_button(
1459 button?,
1460 row,
1461 line_height,
1462 gutter_dimensions,
1463 scroll_pixel_position,
1464 gutter_hitbox,
1465 cx,
1466 );
1467
1468 Some(button)
1469 }
1470
1471 fn get_participant_color(
1472 participant_index: Option<ParticipantIndex>,
1473 cx: &WindowContext,
1474 ) -> PlayerColor {
1475 if let Some(index) = participant_index {
1476 cx.theme().players().color_for_participant(index.0)
1477 } else {
1478 cx.theme().players().absent()
1479 }
1480 }
1481
1482 fn calculate_relative_line_numbers(
1483 &self,
1484 snapshot: &EditorSnapshot,
1485 rows: &Range<u32>,
1486 relative_to: Option<u32>,
1487 ) -> HashMap<u32, u32> {
1488 let mut relative_rows: HashMap<u32, u32> = Default::default();
1489 let Some(relative_to) = relative_to else {
1490 return relative_rows;
1491 };
1492
1493 let start = rows.start.min(relative_to);
1494 let end = rows.end.max(relative_to);
1495
1496 let buffer_rows = snapshot
1497 .buffer_rows(start)
1498 .take(1 + (end - start) as usize)
1499 .collect::<Vec<_>>();
1500
1501 let head_idx = relative_to - start;
1502 let mut delta = 1;
1503 let mut i = head_idx + 1;
1504 while i < buffer_rows.len() as u32 {
1505 if buffer_rows[i as usize].is_some() {
1506 if rows.contains(&(i + start)) {
1507 relative_rows.insert(i + start, delta);
1508 }
1509 delta += 1;
1510 }
1511 i += 1;
1512 }
1513 delta = 1;
1514 i = head_idx.min(buffer_rows.len() as u32 - 1);
1515 while i > 0 && buffer_rows[i as usize].is_none() {
1516 i -= 1;
1517 }
1518
1519 while i > 0 {
1520 i -= 1;
1521 if buffer_rows[i as usize].is_some() {
1522 if rows.contains(&(i + start)) {
1523 relative_rows.insert(i + start, delta);
1524 }
1525 delta += 1;
1526 }
1527 }
1528
1529 relative_rows
1530 }
1531
1532 fn layout_line_numbers(
1533 &self,
1534 rows: Range<u32>,
1535 buffer_rows: impl Iterator<Item = Option<u32>>,
1536 active_rows: &BTreeMap<u32, bool>,
1537 newest_selection_head: Option<DisplayPoint>,
1538 snapshot: &EditorSnapshot,
1539 cx: &WindowContext,
1540 ) -> (
1541 Vec<Option<ShapedLine>>,
1542 Vec<Option<(FoldStatus, BufferRow, bool)>>,
1543 ) {
1544 let editor = self.editor.read(cx);
1545 let is_singleton = editor.is_singleton(cx);
1546 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1547 let newest = editor.selections.newest::<Point>(cx);
1548 SelectionLayout::new(
1549 newest,
1550 editor.selections.line_mode,
1551 editor.cursor_shape,
1552 &snapshot.display_snapshot,
1553 true,
1554 true,
1555 None,
1556 )
1557 .head
1558 });
1559 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1560 let include_line_numbers =
1561 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full;
1562 let include_fold_statuses =
1563 EditorSettings::get_global(cx).gutter.folds && snapshot.mode == EditorMode::Full;
1564 let mut shaped_line_numbers = Vec::with_capacity(rows.len());
1565 let mut fold_statuses = Vec::with_capacity(rows.len());
1566 let mut line_number = String::new();
1567 let is_relative = EditorSettings::get_global(cx).relative_line_numbers;
1568 let relative_to = if is_relative {
1569 Some(newest_selection_head.row())
1570 } else {
1571 None
1572 };
1573
1574 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1575
1576 for (ix, row) in buffer_rows.into_iter().enumerate() {
1577 let display_row = rows.start + ix as u32;
1578 let (active, color) = if active_rows.contains_key(&display_row) {
1579 (true, cx.theme().colors().editor_active_line_number)
1580 } else {
1581 (false, cx.theme().colors().editor_line_number)
1582 };
1583 if let Some(buffer_row) = row {
1584 if include_line_numbers {
1585 line_number.clear();
1586 let default_number = buffer_row + 1;
1587 let number = relative_rows
1588 .get(&(ix as u32 + rows.start))
1589 .unwrap_or(&default_number);
1590 write!(&mut line_number, "{}", number).unwrap();
1591 let run = TextRun {
1592 len: line_number.len(),
1593 font: self.style.text.font(),
1594 color,
1595 background_color: None,
1596 underline: None,
1597 strikethrough: None,
1598 };
1599 let shaped_line = cx
1600 .text_system()
1601 .shape_line(line_number.clone().into(), font_size, &[run])
1602 .unwrap();
1603 shaped_line_numbers.push(Some(shaped_line));
1604 }
1605 if include_fold_statuses {
1606 fold_statuses.push(
1607 is_singleton
1608 .then(|| {
1609 snapshot
1610 .fold_for_line(buffer_row)
1611 .map(|fold_status| (fold_status, buffer_row, active))
1612 })
1613 .flatten(),
1614 )
1615 }
1616 } else {
1617 fold_statuses.push(None);
1618 shaped_line_numbers.push(None);
1619 }
1620 }
1621
1622 (shaped_line_numbers, fold_statuses)
1623 }
1624
1625 fn layout_lines(
1626 &self,
1627 rows: Range<u32>,
1628 line_number_layouts: &[Option<ShapedLine>],
1629 snapshot: &EditorSnapshot,
1630 cx: &WindowContext,
1631 ) -> Vec<LineWithInvisibles> {
1632 if rows.start >= rows.end {
1633 return Vec::new();
1634 }
1635
1636 // Show the placeholder when the editor is empty
1637 if snapshot.is_empty() {
1638 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1639 let placeholder_color = cx.theme().colors().text_placeholder;
1640 let placeholder_text = snapshot.placeholder_text();
1641
1642 let placeholder_lines = placeholder_text
1643 .as_ref()
1644 .map_or("", AsRef::as_ref)
1645 .split('\n')
1646 .skip(rows.start as usize)
1647 .chain(iter::repeat(""))
1648 .take(rows.len());
1649 placeholder_lines
1650 .filter_map(move |line| {
1651 let run = TextRun {
1652 len: line.len(),
1653 font: self.style.text.font(),
1654 color: placeholder_color,
1655 background_color: None,
1656 underline: Default::default(),
1657 strikethrough: None,
1658 };
1659 cx.text_system()
1660 .shape_line(line.to_string().into(), font_size, &[run])
1661 .log_err()
1662 })
1663 .map(|line| LineWithInvisibles {
1664 line,
1665 invisibles: Vec::new(),
1666 })
1667 .collect()
1668 } else {
1669 let chunks = snapshot.highlighted_chunks(rows.clone(), true, &self.style);
1670 LineWithInvisibles::from_chunks(
1671 chunks,
1672 &self.style.text,
1673 MAX_LINE_LEN,
1674 rows.len(),
1675 line_number_layouts,
1676 snapshot.mode,
1677 cx,
1678 )
1679 }
1680 }
1681
1682 #[allow(clippy::too_many_arguments)]
1683 fn build_blocks(
1684 &self,
1685 rows: Range<u32>,
1686 snapshot: &EditorSnapshot,
1687 hitbox: &Hitbox,
1688 text_hitbox: &Hitbox,
1689 scroll_width: &mut Pixels,
1690 gutter_dimensions: &GutterDimensions,
1691 em_width: Pixels,
1692 text_x: Pixels,
1693 line_height: Pixels,
1694 line_layouts: &[LineWithInvisibles],
1695 cx: &mut WindowContext,
1696 ) -> Vec<BlockLayout> {
1697 let mut block_id = 0;
1698 let (fixed_blocks, non_fixed_blocks) = snapshot
1699 .blocks_in_range(rows.clone())
1700 .partition::<Vec<_>, _>(|(_, block)| match block {
1701 TransformBlock::ExcerptHeader { .. } => false,
1702 TransformBlock::Custom(block) => block.style() == BlockStyle::Fixed,
1703 });
1704
1705 let render_block = |block: &TransformBlock,
1706 available_space: Size<AvailableSpace>,
1707 block_id: usize,
1708 block_row_start: u32,
1709 cx: &mut WindowContext| {
1710 let mut element = match block {
1711 TransformBlock::Custom(block) => {
1712 let align_to = block
1713 .position()
1714 .to_point(&snapshot.buffer_snapshot)
1715 .to_display_point(snapshot);
1716 let anchor_x = text_x
1717 + if rows.contains(&align_to.row()) {
1718 line_layouts[(align_to.row() - rows.start) as usize]
1719 .line
1720 .x_for_index(align_to.column() as usize)
1721 } else {
1722 layout_line(align_to.row(), snapshot, &self.style, cx)
1723 .unwrap()
1724 .x_for_index(align_to.column() as usize)
1725 };
1726
1727 block.render(&mut BlockContext {
1728 context: cx,
1729 anchor_x,
1730 gutter_dimensions,
1731 line_height,
1732 em_width,
1733 block_id,
1734 max_width: text_hitbox.size.width.max(*scroll_width),
1735 editor_style: &self.style,
1736 })
1737 }
1738
1739 TransformBlock::ExcerptHeader {
1740 buffer,
1741 range,
1742 starts_new_buffer,
1743 height,
1744 id,
1745 ..
1746 } => {
1747 let include_root = self
1748 .editor
1749 .read(cx)
1750 .project
1751 .as_ref()
1752 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
1753 .unwrap_or_default();
1754
1755 #[derive(Clone)]
1756 struct JumpData {
1757 position: Point,
1758 anchor: text::Anchor,
1759 path: ProjectPath,
1760 line_offset_from_top: u32,
1761 }
1762
1763 let jump_data = project::File::from_dyn(buffer.file()).map(|file| {
1764 let jump_path = ProjectPath {
1765 worktree_id: file.worktree_id(cx),
1766 path: file.path.clone(),
1767 };
1768 let jump_anchor = range
1769 .primary
1770 .as_ref()
1771 .map_or(range.context.start, |primary| primary.start);
1772
1773 let excerpt_start = range.context.start;
1774 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
1775 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
1776 0
1777 } else {
1778 let excerpt_start_row =
1779 language::ToPoint::to_point(&jump_anchor, buffer).row;
1780 jump_position.row - excerpt_start_row
1781 };
1782
1783 let line_offset_from_top =
1784 block_row_start + *height as u32 + offset_from_excerpt_start
1785 - snapshot
1786 .scroll_anchor
1787 .scroll_position(&snapshot.display_snapshot)
1788 .y as u32;
1789
1790 JumpData {
1791 position: jump_position,
1792 anchor: jump_anchor,
1793 path: jump_path,
1794 line_offset_from_top,
1795 }
1796 });
1797
1798 let element = if *starts_new_buffer {
1799 let path = buffer.resolve_file_path(cx, include_root);
1800 let mut filename = None;
1801 let mut parent_path = None;
1802 // Can't use .and_then() because `.file_name()` and `.parent()` return references :(
1803 if let Some(path) = path {
1804 filename = path.file_name().map(|f| f.to_string_lossy().to_string());
1805 parent_path = path
1806 .parent()
1807 .map(|p| SharedString::from(p.to_string_lossy().to_string() + "/"));
1808 }
1809
1810 v_flex()
1811 .id(("path header container", block_id))
1812 .size_full()
1813 .justify_center()
1814 .p(gpui::px(6.))
1815 .child(
1816 h_flex()
1817 .id("path header block")
1818 .size_full()
1819 .pl(gpui::px(12.))
1820 .pr(gpui::px(8.))
1821 .rounded_md()
1822 .shadow_md()
1823 .border_1()
1824 .border_color(cx.theme().colors().border)
1825 .bg(cx.theme().colors().editor_subheader_background)
1826 .justify_between()
1827 .hover(|style| style.bg(cx.theme().colors().element_hover))
1828 .child(
1829 h_flex().gap_3().child(
1830 h_flex()
1831 .gap_2()
1832 .child(
1833 filename
1834 .map(SharedString::from)
1835 .unwrap_or_else(|| "untitled".into()),
1836 )
1837 .when_some(parent_path, |then, path| {
1838 then.child(
1839 div().child(path).text_color(
1840 cx.theme().colors().text_muted,
1841 ),
1842 )
1843 }),
1844 ),
1845 )
1846 .when_some(jump_data.clone(), |this, jump_data| {
1847 this.cursor_pointer()
1848 .tooltip(|cx| {
1849 Tooltip::for_action(
1850 "Jump to File",
1851 &OpenExcerpts,
1852 cx,
1853 )
1854 })
1855 .on_mouse_down(MouseButton::Left, |_, cx| {
1856 cx.stop_propagation()
1857 })
1858 .on_click(cx.listener_for(&self.editor, {
1859 move |editor, _, cx| {
1860 editor.jump(
1861 jump_data.path.clone(),
1862 jump_data.position,
1863 jump_data.anchor,
1864 jump_data.line_offset_from_top,
1865 cx,
1866 );
1867 }
1868 }))
1869 }),
1870 )
1871 } else {
1872 v_flex()
1873 .id(("collapsed context", block_id))
1874 .size_full()
1875 .child(
1876 div()
1877 .flex()
1878 .v_flex()
1879 .justify_start()
1880 .id("jump to collapsed context")
1881 .w(relative(1.0))
1882 .h_full()
1883 .child(
1884 div()
1885 .h_px()
1886 .w_full()
1887 .bg(cx.theme().colors().border_variant)
1888 .group_hover("excerpt-jump-action", |style| {
1889 style.bg(cx.theme().colors().border)
1890 }),
1891 ),
1892 )
1893 .child(
1894 h_flex()
1895 .justify_end()
1896 .flex_none()
1897 .w(
1898 gutter_dimensions.width - (gutter_dimensions.left_padding), // + gutter_dimensions.right_padding)
1899 )
1900 .h_full()
1901 .child(
1902 ButtonLike::new("expand-icon")
1903 .style(ButtonStyle::Transparent)
1904 .child(
1905 svg()
1906 .path(IconName::ExpandVertical.path())
1907 .size(IconSize::XSmall.rems())
1908 .text_color(
1909 cx.theme().colors().editor_line_number,
1910 )
1911 .group("")
1912 .hover(|style| {
1913 style.text_color(
1914 cx.theme()
1915 .colors()
1916 .editor_active_line_number,
1917 )
1918 }),
1919 )
1920 .on_click(cx.listener_for(&self.editor, {
1921 let id = *id;
1922 move |editor, _, cx| {
1923 editor.expand_excerpt(id, cx);
1924 }
1925 }))
1926 .tooltip({
1927 move |cx| {
1928 Tooltip::for_action(
1929 "Expand Excerpt",
1930 &ExpandExcerpts { lines: 0 },
1931 cx,
1932 )
1933 }
1934 }),
1935 ),
1936 )
1937 .group("excerpt-jump-action")
1938 .cursor_pointer()
1939 .when_some(jump_data.clone(), |this, jump_data| {
1940 this.on_click(cx.listener_for(&self.editor, {
1941 let path = jump_data.path.clone();
1942 move |editor, _, cx| {
1943 cx.stop_propagation();
1944
1945 editor.jump(
1946 path.clone(),
1947 jump_data.position,
1948 jump_data.anchor,
1949 jump_data.line_offset_from_top,
1950 cx,
1951 );
1952 }
1953 }))
1954 .tooltip(move |cx| {
1955 Tooltip::for_action(
1956 format!(
1957 "Jump to {}:L{}",
1958 jump_data.path.path.display(),
1959 jump_data.position.row + 1
1960 ),
1961 &OpenExcerpts,
1962 cx,
1963 )
1964 })
1965 })
1966 };
1967 element.into_any()
1968 }
1969 };
1970
1971 let size = element.layout_as_root(available_space, cx);
1972 (element, size)
1973 };
1974
1975 let mut fixed_block_max_width = Pixels::ZERO;
1976 let mut blocks = Vec::new();
1977 for (row, block) in fixed_blocks {
1978 let available_space = size(
1979 AvailableSpace::MinContent,
1980 AvailableSpace::Definite(block.height() as f32 * line_height),
1981 );
1982 let (element, element_size) = render_block(block, available_space, block_id, row, cx);
1983 block_id += 1;
1984 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
1985 blocks.push(BlockLayout {
1986 row,
1987 element,
1988 available_space,
1989 style: BlockStyle::Fixed,
1990 });
1991 }
1992 for (row, block) in non_fixed_blocks {
1993 let style = match block {
1994 TransformBlock::Custom(block) => block.style(),
1995 TransformBlock::ExcerptHeader { .. } => BlockStyle::Sticky,
1996 };
1997 let width = match style {
1998 BlockStyle::Sticky => hitbox.size.width,
1999 BlockStyle::Flex => hitbox
2000 .size
2001 .width
2002 .max(fixed_block_max_width)
2003 .max(gutter_dimensions.width + *scroll_width),
2004 BlockStyle::Fixed => unreachable!(),
2005 };
2006 let available_space = size(
2007 AvailableSpace::Definite(width),
2008 AvailableSpace::Definite(block.height() as f32 * line_height),
2009 );
2010 let (element, _) = render_block(block, available_space, block_id, row, cx);
2011 block_id += 1;
2012 blocks.push(BlockLayout {
2013 row,
2014 element,
2015 available_space,
2016 style,
2017 });
2018 }
2019
2020 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2021 blocks
2022 }
2023
2024 fn layout_blocks(
2025 &self,
2026 blocks: &mut Vec<BlockLayout>,
2027 hitbox: &Hitbox,
2028 line_height: Pixels,
2029 scroll_pixel_position: gpui::Point<Pixels>,
2030 cx: &mut WindowContext,
2031 ) {
2032 for block in blocks {
2033 let mut origin = hitbox.origin
2034 + point(
2035 Pixels::ZERO,
2036 block.row as f32 * line_height - scroll_pixel_position.y,
2037 );
2038 if !matches!(block.style, BlockStyle::Sticky) {
2039 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2040 }
2041 block
2042 .element
2043 .prepaint_as_root(origin, block.available_space, cx);
2044 }
2045 }
2046
2047 #[allow(clippy::too_many_arguments)]
2048 fn layout_context_menu(
2049 &self,
2050 line_height: Pixels,
2051 hitbox: &Hitbox,
2052 text_hitbox: &Hitbox,
2053 content_origin: gpui::Point<Pixels>,
2054 start_row: u32,
2055 scroll_pixel_position: gpui::Point<Pixels>,
2056 line_layouts: &[LineWithInvisibles],
2057 newest_selection_head: DisplayPoint,
2058 gutter_overshoot: Pixels,
2059 cx: &mut WindowContext,
2060 ) -> bool {
2061 let max_height = cmp::min(
2062 12. * line_height,
2063 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2064 );
2065 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2066 if editor.context_menu_visible() {
2067 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2068 } else {
2069 None
2070 }
2071 }) else {
2072 return false;
2073 };
2074
2075 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2076 let context_menu_size = context_menu.layout_as_root(available_space, cx);
2077
2078 let (x, y) = match position {
2079 crate::ContextMenuOrigin::EditorPoint(point) => {
2080 let cursor_row_layout = &line_layouts[(point.row() - start_row) as usize].line;
2081 let x = cursor_row_layout.x_for_index(point.column() as usize)
2082 - scroll_pixel_position.x;
2083 let y = (point.row() + 1) as f32 * line_height - scroll_pixel_position.y;
2084 (x, y)
2085 }
2086 crate::ContextMenuOrigin::GutterIndicator(row) => {
2087 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the indicator than just a plain first column of the
2088 // text field.
2089 let snapshot = self.editor.update(cx, |this, cx| this.snapshot(cx));
2090 let row = Point::new(row, 0)
2091 .to_display_point(&snapshot.display_snapshot)
2092 .row();
2093 let x = -gutter_overshoot;
2094 let y = (row + 1) as f32 * line_height - scroll_pixel_position.y;
2095 (x, y)
2096 }
2097 };
2098
2099 let mut list_origin = content_origin + point(x, y);
2100 let list_width = context_menu_size.width;
2101 let list_height = context_menu_size.height;
2102
2103 // Snap the right edge of the list to the right edge of the window if
2104 // its horizontal bounds overflow.
2105 if list_origin.x + list_width > cx.viewport_size().width {
2106 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2107 }
2108
2109 if list_origin.y + list_height > text_hitbox.lower_right().y {
2110 list_origin.y -= line_height + list_height;
2111 }
2112
2113 cx.defer_draw(context_menu, list_origin, 1);
2114 true
2115 }
2116
2117 fn layout_mouse_context_menu(&self, cx: &mut WindowContext) -> Option<AnyElement> {
2118 let mouse_context_menu = self.editor.read(cx).mouse_context_menu.as_ref()?;
2119 let mut element = deferred(
2120 anchored()
2121 .position(mouse_context_menu.position)
2122 .child(mouse_context_menu.context_menu.clone())
2123 .anchor(AnchorCorner::TopLeft)
2124 .snap_to_window(),
2125 )
2126 .with_priority(1)
2127 .into_any();
2128
2129 element.prepaint_as_root(gpui::Point::default(), AvailableSpace::min_size(), cx);
2130 Some(element)
2131 }
2132
2133 #[allow(clippy::too_many_arguments)]
2134 fn layout_hover_popovers(
2135 &self,
2136 snapshot: &EditorSnapshot,
2137 hitbox: &Hitbox,
2138 text_hitbox: &Hitbox,
2139 visible_display_row_range: Range<u32>,
2140 content_origin: gpui::Point<Pixels>,
2141 scroll_pixel_position: gpui::Point<Pixels>,
2142 line_layouts: &[LineWithInvisibles],
2143 line_height: Pixels,
2144 em_width: Pixels,
2145 cx: &mut WindowContext,
2146 ) {
2147 struct MeasuredHoverPopover {
2148 element: AnyElement,
2149 size: Size<Pixels>,
2150 horizontal_offset: Pixels,
2151 }
2152
2153 let max_size = size(
2154 (120. * em_width) // Default size
2155 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2156 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2157 (16. * line_height) // Default size
2158 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2159 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2160 );
2161
2162 let hover_popovers = self.editor.update(cx, |editor, cx| {
2163 editor.hover_state.render(
2164 &snapshot,
2165 &self.style,
2166 visible_display_row_range.clone(),
2167 max_size,
2168 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2169 cx,
2170 )
2171 });
2172 let Some((position, hover_popovers)) = hover_popovers else {
2173 return;
2174 };
2175
2176 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2177
2178 // This is safe because we check on layout whether the required row is available
2179 let hovered_row_layout =
2180 &line_layouts[(position.row() - visible_display_row_range.start) as usize].line;
2181
2182 // Compute Hovered Point
2183 let x =
2184 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2185 let y = position.row() as f32 * line_height - scroll_pixel_position.y;
2186 let hovered_point = content_origin + point(x, y);
2187
2188 let mut overall_height = Pixels::ZERO;
2189 let mut measured_hover_popovers = Vec::new();
2190 for mut hover_popover in hover_popovers {
2191 let size = hover_popover.layout_as_root(available_space, cx);
2192 let horizontal_offset =
2193 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2194
2195 overall_height += HOVER_POPOVER_GAP + size.height;
2196
2197 measured_hover_popovers.push(MeasuredHoverPopover {
2198 element: hover_popover,
2199 size,
2200 horizontal_offset,
2201 });
2202 }
2203 overall_height += HOVER_POPOVER_GAP;
2204
2205 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2206 let mut occlusion = div()
2207 .size_full()
2208 .occlude()
2209 .on_mouse_move(|_, cx| cx.stop_propagation())
2210 .into_any_element();
2211 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2212 cx.defer_draw(occlusion, origin, 2);
2213 }
2214
2215 if hovered_point.y > overall_height {
2216 // There is enough space above. Render popovers above the hovered point
2217 let mut current_y = hovered_point.y;
2218 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2219 let size = popover.size;
2220 let popover_origin = point(
2221 hovered_point.x + popover.horizontal_offset,
2222 current_y - size.height,
2223 );
2224
2225 cx.defer_draw(popover.element, popover_origin, 2);
2226 if position != itertools::Position::Last {
2227 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2228 draw_occluder(size.width, origin, cx);
2229 }
2230
2231 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2232 }
2233 } else {
2234 // There is not enough space above. Render popovers below the hovered point
2235 let mut current_y = hovered_point.y + line_height;
2236 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2237 let size = popover.size;
2238 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2239
2240 cx.defer_draw(popover.element, popover_origin, 2);
2241 if position != itertools::Position::Last {
2242 let origin = point(popover_origin.x, popover_origin.y + size.height);
2243 draw_occluder(size.width, origin, cx);
2244 }
2245
2246 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2247 }
2248 }
2249 }
2250
2251 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2252 cx.paint_layer(layout.hitbox.bounds, |cx| {
2253 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2254 let gutter_bg = cx.theme().colors().editor_gutter_background;
2255 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2256 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2257
2258 if let EditorMode::Full = layout.mode {
2259 let mut active_rows = layout.active_rows.iter().peekable();
2260 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2261 let mut end_row = *start_row;
2262 while active_rows.peek().map_or(false, |r| {
2263 *r.0 == end_row + 1 && r.1 == contains_non_empty_selection
2264 }) {
2265 active_rows.next().unwrap();
2266 end_row += 1;
2267 }
2268
2269 if !contains_non_empty_selection {
2270 let origin = point(
2271 layout.hitbox.origin.x,
2272 layout.hitbox.origin.y
2273 + (*start_row as f32 - scroll_top)
2274 * layout.position_map.line_height,
2275 );
2276 let size = size(
2277 layout.hitbox.size.width,
2278 layout.position_map.line_height * (end_row - start_row + 1) as f32,
2279 );
2280 let active_line_bg = cx.theme().colors().editor_active_line_background;
2281 cx.paint_quad(fill(Bounds { origin, size }, active_line_bg));
2282 }
2283 }
2284
2285 let mut paint_highlight =
2286 |highlight_row_start: u32, highlight_row_end: u32, color| {
2287 let origin = point(
2288 layout.hitbox.origin.x,
2289 layout.hitbox.origin.y
2290 + (highlight_row_start as f32 - scroll_top)
2291 * layout.position_map.line_height,
2292 );
2293 let size = size(
2294 layout.hitbox.size.width,
2295 layout.position_map.line_height
2296 * (highlight_row_end + 1 - highlight_row_start) as f32,
2297 );
2298 cx.paint_quad(fill(Bounds { origin, size }, color));
2299 };
2300
2301 let mut current_paint: Option<(Hsla, Range<u32>)> = None;
2302 for (&new_row, &new_color) in &layout.highlighted_rows {
2303 match &mut current_paint {
2304 Some((current_color, current_range)) => {
2305 let current_color = *current_color;
2306 let new_range_started =
2307 current_color != new_color || current_range.end + 1 != new_row;
2308 if new_range_started {
2309 paint_highlight(
2310 current_range.start,
2311 current_range.end,
2312 current_color,
2313 );
2314 current_paint = Some((new_color, new_row..new_row));
2315 continue;
2316 } else {
2317 current_range.end += 1;
2318 }
2319 }
2320 None => current_paint = Some((new_color, new_row..new_row)),
2321 };
2322 }
2323 if let Some((color, range)) = current_paint {
2324 paint_highlight(range.start, range.end, color);
2325 }
2326
2327 let scroll_left =
2328 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
2329
2330 for (wrap_position, active) in layout.wrap_guides.iter() {
2331 let x = (layout.text_hitbox.origin.x
2332 + *wrap_position
2333 + layout.position_map.em_width / 2.)
2334 - scroll_left;
2335
2336 let show_scrollbars = layout
2337 .scrollbar_layout
2338 .as_ref()
2339 .map_or(false, |scrollbar| scrollbar.visible);
2340 if x < layout.text_hitbox.origin.x
2341 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
2342 {
2343 continue;
2344 }
2345
2346 let color = if *active {
2347 cx.theme().colors().editor_active_wrap_guide
2348 } else {
2349 cx.theme().colors().editor_wrap_guide
2350 };
2351 cx.paint_quad(fill(
2352 Bounds {
2353 origin: point(x, layout.text_hitbox.origin.y),
2354 size: size(px(1.), layout.text_hitbox.size.height),
2355 },
2356 color,
2357 ));
2358 }
2359 }
2360 })
2361 }
2362
2363 fn paint_gutter(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2364 let line_height = layout.position_map.line_height;
2365
2366 let scroll_position = layout.position_map.snapshot.scroll_position();
2367 let scroll_top = scroll_position.y * line_height;
2368
2369 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
2370 for (_, hunk_hitbox) in &layout.display_hunks {
2371 if let Some(hunk_hitbox) = hunk_hitbox {
2372 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
2373 }
2374 }
2375
2376 let show_git_gutter = matches!(
2377 ProjectSettings::get_global(cx).git.git_gutter,
2378 Some(GitGutterSetting::TrackedFiles)
2379 );
2380 if show_git_gutter {
2381 Self::paint_diff_hunks(layout.gutter_hitbox.bounds, layout, cx)
2382 }
2383
2384 if layout.blamed_display_rows.is_some() {
2385 self.paint_blamed_display_rows(layout, cx);
2386 }
2387
2388 for (ix, line) in layout.line_numbers.iter().enumerate() {
2389 if let Some(line) = line {
2390 let line_origin = layout.gutter_hitbox.origin
2391 + point(
2392 layout.gutter_hitbox.size.width
2393 - line.width
2394 - layout.gutter_dimensions.right_padding,
2395 ix as f32 * line_height - (scroll_top % line_height),
2396 );
2397
2398 line.paint(line_origin, line_height, cx).log_err();
2399 }
2400 }
2401
2402 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2403 cx.with_element_namespace("gutter_fold_indicators", |cx| {
2404 for fold_indicator in layout.fold_indicators.iter_mut().flatten() {
2405 fold_indicator.paint(cx);
2406 }
2407 });
2408
2409 for test_indicators in layout.test_indicators.iter_mut() {
2410 test_indicators.paint(cx);
2411 }
2412
2413 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
2414 indicator.paint(cx);
2415 }
2416 });
2417 }
2418
2419 fn paint_diff_hunks(
2420 gutter_bounds: Bounds<Pixels>,
2421 layout: &EditorLayout,
2422 cx: &mut WindowContext,
2423 ) {
2424 if layout.display_hunks.is_empty() {
2425 return;
2426 }
2427
2428 let line_height = layout.position_map.line_height;
2429 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2430 for (hunk, hitbox) in &layout.display_hunks {
2431 let hunk_to_paint = match hunk {
2432 DisplayDiffHunk::Folded { .. } => {
2433 let hunk_bounds = Self::diff_hunk_bounds(
2434 &layout.position_map.snapshot,
2435 line_height,
2436 gutter_bounds,
2437 &hunk,
2438 );
2439 Some((
2440 hunk_bounds,
2441 cx.theme().status().modified,
2442 Corners::all(1. * line_height),
2443 ))
2444 }
2445 DisplayDiffHunk::Unfolded { status, .. } => {
2446 hitbox.as_ref().map(|hunk_hitbox| match status {
2447 DiffHunkStatus::Added => (
2448 hunk_hitbox.bounds,
2449 cx.theme().status().created,
2450 Corners::all(0.05 * line_height),
2451 ),
2452 DiffHunkStatus::Modified => (
2453 hunk_hitbox.bounds,
2454 cx.theme().status().modified,
2455 Corners::all(0.05 * line_height),
2456 ),
2457 DiffHunkStatus::Removed => (
2458 hunk_hitbox.bounds,
2459 cx.theme().status().deleted,
2460 Corners::all(1. * line_height),
2461 ),
2462 })
2463 }
2464 };
2465
2466 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
2467 cx.paint_quad(quad(
2468 hunk_bounds,
2469 corner_radii,
2470 background_color,
2471 Edges::default(),
2472 transparent_black(),
2473 ));
2474 }
2475 }
2476 });
2477 }
2478
2479 fn diff_hunk_bounds(
2480 snapshot: &EditorSnapshot,
2481 line_height: Pixels,
2482 bounds: Bounds<Pixels>,
2483 hunk: &DisplayDiffHunk,
2484 ) -> Bounds<Pixels> {
2485 let scroll_position = snapshot.scroll_position();
2486 let scroll_top = scroll_position.y * line_height;
2487
2488 match hunk {
2489 DisplayDiffHunk::Folded { display_row, .. } => {
2490 let start_y = *display_row as f32 * line_height - scroll_top;
2491 let end_y = start_y + line_height;
2492
2493 let width = 0.275 * line_height;
2494 let highlight_origin = bounds.origin + point(-width, start_y);
2495 let highlight_size = size(width * 2., end_y - start_y);
2496 Bounds::new(highlight_origin, highlight_size)
2497 }
2498 DisplayDiffHunk::Unfolded {
2499 display_row_range,
2500 status,
2501 ..
2502 } => match status {
2503 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
2504 let start_row = display_row_range.start;
2505 let end_row = display_row_range.end;
2506 // If we're in a multibuffer, row range span might include an
2507 // excerpt header, so if we were to draw the marker straight away,
2508 // the hunk might include the rows of that header.
2509 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
2510 // Instead, we simply check whether the range we're dealing with includes
2511 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
2512 let end_row_in_current_excerpt = snapshot
2513 .blocks_in_range(start_row..end_row)
2514 .find_map(|(start_row, block)| {
2515 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
2516 Some(start_row)
2517 } else {
2518 None
2519 }
2520 })
2521 .unwrap_or(end_row);
2522
2523 let start_y = start_row as f32 * line_height - scroll_top;
2524 let end_y = end_row_in_current_excerpt as f32 * line_height - scroll_top;
2525
2526 let width = 0.275 * line_height;
2527 let highlight_origin = bounds.origin + point(-width, start_y);
2528 let highlight_size = size(width * 2., end_y - start_y);
2529 Bounds::new(highlight_origin, highlight_size)
2530 }
2531 DiffHunkStatus::Removed => {
2532 let row = display_row_range.start;
2533
2534 let offset = line_height / 2.;
2535 let start_y = row as f32 * line_height - offset - scroll_top;
2536 let end_y = start_y + line_height;
2537
2538 let width = 0.35 * line_height;
2539 let highlight_origin = bounds.origin + point(-width, start_y);
2540 let highlight_size = size(width * 2., end_y - start_y);
2541 Bounds::new(highlight_origin, highlight_size)
2542 }
2543 },
2544 }
2545 }
2546
2547 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2548 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
2549 return;
2550 };
2551
2552 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2553 for mut blame_element in blamed_display_rows.into_iter() {
2554 blame_element.paint(cx);
2555 }
2556 })
2557 }
2558
2559 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2560 cx.with_content_mask(
2561 Some(ContentMask {
2562 bounds: layout.text_hitbox.bounds,
2563 }),
2564 |cx| {
2565 let cursor_style = if self
2566 .editor
2567 .read(cx)
2568 .hovered_link_state
2569 .as_ref()
2570 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
2571 {
2572 CursorStyle::PointingHand
2573 } else {
2574 CursorStyle::IBeam
2575 };
2576 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
2577
2578 cx.with_element_namespace("folds", |cx| self.paint_folds(layout, cx));
2579 let invisible_display_ranges = self.paint_highlights(layout, cx);
2580 self.paint_lines(&invisible_display_ranges, layout, cx);
2581 self.paint_redactions(layout, cx);
2582 self.paint_cursors(layout, cx);
2583 self.paint_inline_blame(layout, cx);
2584 },
2585 )
2586 }
2587
2588 fn paint_highlights(
2589 &mut self,
2590 layout: &mut EditorLayout,
2591 cx: &mut WindowContext,
2592 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
2593 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2594 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
2595 let line_end_overshoot = 0.15 * layout.position_map.line_height;
2596 for (range, color) in &layout.highlighted_ranges {
2597 self.paint_highlighted_range(
2598 range.clone(),
2599 *color,
2600 Pixels::ZERO,
2601 line_end_overshoot,
2602 layout,
2603 cx,
2604 );
2605 }
2606
2607 let corner_radius = 0.15 * layout.position_map.line_height;
2608
2609 for (player_color, selections) in &layout.selections {
2610 for selection in selections.into_iter() {
2611 self.paint_highlighted_range(
2612 selection.range.clone(),
2613 player_color.selection,
2614 corner_radius,
2615 corner_radius * 2.,
2616 layout,
2617 cx,
2618 );
2619
2620 if selection.is_local && !selection.range.is_empty() {
2621 invisible_display_ranges.push(selection.range.clone());
2622 }
2623 }
2624 }
2625 invisible_display_ranges
2626 })
2627 }
2628
2629 fn paint_lines(
2630 &mut self,
2631 invisible_display_ranges: &[Range<DisplayPoint>],
2632 layout: &EditorLayout,
2633 cx: &mut WindowContext,
2634 ) {
2635 let whitespace_setting = self
2636 .editor
2637 .read(cx)
2638 .buffer
2639 .read(cx)
2640 .settings_at(0, cx)
2641 .show_whitespaces;
2642
2643 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
2644 let row = layout.visible_display_row_range.start + ix as u32;
2645 line_with_invisibles.draw(
2646 layout,
2647 row,
2648 layout.content_origin,
2649 whitespace_setting,
2650 invisible_display_ranges,
2651 cx,
2652 )
2653 }
2654 }
2655
2656 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
2657 if layout.redacted_ranges.is_empty() {
2658 return;
2659 }
2660
2661 let line_end_overshoot = layout.line_end_overshoot();
2662
2663 // A softer than perfect black
2664 let redaction_color = gpui::rgb(0x0e1111);
2665
2666 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2667 for range in layout.redacted_ranges.iter() {
2668 self.paint_highlighted_range(
2669 range.clone(),
2670 redaction_color.into(),
2671 Pixels::ZERO,
2672 line_end_overshoot,
2673 layout,
2674 cx,
2675 );
2676 }
2677 });
2678 }
2679
2680 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2681 for cursor in &mut layout.visible_cursors {
2682 cursor.paint(layout.content_origin, cx);
2683 }
2684 }
2685
2686 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2687 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
2688 return;
2689 };
2690
2691 let thumb_bounds = scrollbar_layout.thumb_bounds();
2692 if scrollbar_layout.visible {
2693 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
2694 cx.paint_quad(quad(
2695 scrollbar_layout.hitbox.bounds,
2696 Corners::default(),
2697 cx.theme().colors().scrollbar_track_background,
2698 Edges {
2699 top: Pixels::ZERO,
2700 right: Pixels::ZERO,
2701 bottom: Pixels::ZERO,
2702 left: ScrollbarLayout::BORDER_WIDTH,
2703 },
2704 cx.theme().colors().scrollbar_track_border,
2705 ));
2706
2707 let fast_markers =
2708 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
2709 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
2710 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
2711
2712 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
2713 for marker in markers.iter().chain(&fast_markers) {
2714 let mut marker = marker.clone();
2715 marker.bounds.origin += scrollbar_layout.hitbox.origin;
2716 cx.paint_quad(marker);
2717 }
2718
2719 cx.paint_quad(quad(
2720 thumb_bounds,
2721 Corners::default(),
2722 cx.theme().colors().scrollbar_thumb_background,
2723 Edges {
2724 top: Pixels::ZERO,
2725 right: Pixels::ZERO,
2726 bottom: Pixels::ZERO,
2727 left: ScrollbarLayout::BORDER_WIDTH,
2728 },
2729 cx.theme().colors().scrollbar_thumb_border,
2730 ));
2731 });
2732 }
2733
2734 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
2735
2736 let row_height = scrollbar_layout.row_height;
2737 let row_range = scrollbar_layout.visible_row_range.clone();
2738
2739 cx.on_mouse_event({
2740 let editor = self.editor.clone();
2741 let hitbox = scrollbar_layout.hitbox.clone();
2742 let mut mouse_position = cx.mouse_position();
2743 move |event: &MouseMoveEvent, phase, cx| {
2744 if phase == DispatchPhase::Capture {
2745 return;
2746 }
2747
2748 editor.update(cx, |editor, cx| {
2749 if event.pressed_button == Some(MouseButton::Left)
2750 && editor.scroll_manager.is_dragging_scrollbar()
2751 {
2752 let y = mouse_position.y;
2753 let new_y = event.position.y;
2754 if (hitbox.top()..hitbox.bottom()).contains(&y) {
2755 let mut position = editor.scroll_position(cx);
2756 position.y += (new_y - y) / row_height;
2757 if position.y < 0.0 {
2758 position.y = 0.0;
2759 }
2760 editor.set_scroll_position(position, cx);
2761 }
2762
2763 cx.stop_propagation();
2764 } else {
2765 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2766 if hitbox.is_hovered(cx) {
2767 editor.scroll_manager.show_scrollbar(cx);
2768 }
2769 }
2770 mouse_position = event.position;
2771 })
2772 }
2773 });
2774
2775 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
2776 cx.on_mouse_event({
2777 let editor = self.editor.clone();
2778 move |_: &MouseUpEvent, phase, cx| {
2779 if phase == DispatchPhase::Capture {
2780 return;
2781 }
2782
2783 editor.update(cx, |editor, cx| {
2784 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2785 cx.stop_propagation();
2786 });
2787 }
2788 });
2789 } else {
2790 cx.on_mouse_event({
2791 let editor = self.editor.clone();
2792 let hitbox = scrollbar_layout.hitbox.clone();
2793 move |event: &MouseDownEvent, phase, cx| {
2794 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
2795 return;
2796 }
2797
2798 editor.update(cx, |editor, cx| {
2799 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
2800
2801 let y = event.position.y;
2802 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
2803 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
2804 let top_row = center_row
2805 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
2806 let mut position = editor.scroll_position(cx);
2807 position.y = top_row as f32;
2808 editor.set_scroll_position(position, cx);
2809 } else {
2810 editor.scroll_manager.show_scrollbar(cx);
2811 }
2812
2813 cx.stop_propagation();
2814 });
2815 }
2816 });
2817 }
2818 }
2819
2820 fn collect_fast_scrollbar_markers(
2821 &self,
2822 layout: &EditorLayout,
2823 scrollbar_layout: &ScrollbarLayout,
2824 cx: &mut WindowContext,
2825 ) -> Vec<PaintQuad> {
2826 const LIMIT: usize = 100;
2827 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
2828 return vec![];
2829 }
2830 let cursor_ranges = layout
2831 .cursors
2832 .iter()
2833 .map(|(point, color)| ColoredRange {
2834 start: point.row(),
2835 end: point.row(),
2836 color: *color,
2837 })
2838 .collect_vec();
2839 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
2840 }
2841
2842 fn refresh_slow_scrollbar_markers(
2843 &self,
2844 layout: &EditorLayout,
2845 scrollbar_layout: &ScrollbarLayout,
2846 cx: &mut WindowContext,
2847 ) {
2848 self.editor.update(cx, |editor, cx| {
2849 if !editor.is_singleton(cx)
2850 || !editor
2851 .scrollbar_marker_state
2852 .should_refresh(scrollbar_layout.hitbox.size)
2853 {
2854 return;
2855 }
2856
2857 let scrollbar_layout = scrollbar_layout.clone();
2858 let background_highlights = editor.background_highlights.clone();
2859 let snapshot = layout.position_map.snapshot.clone();
2860 let theme = cx.theme().clone();
2861 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
2862 let max_row = layout.max_row;
2863
2864 editor.scrollbar_marker_state.dirty = false;
2865 editor.scrollbar_marker_state.pending_refresh =
2866 Some(cx.spawn(|editor, mut cx| async move {
2867 let scrollbar_size = scrollbar_layout.hitbox.size;
2868 let scrollbar_markers = cx
2869 .background_executor()
2870 .spawn(async move {
2871 let mut marker_quads = Vec::new();
2872
2873 if scrollbar_settings.git_diff {
2874 let marker_row_ranges = snapshot
2875 .buffer_snapshot
2876 .git_diff_hunks_in_range(0..max_row)
2877 .map(|hunk| {
2878 let start_display_row =
2879 Point::new(hunk.associated_range.start, 0)
2880 .to_display_point(&snapshot.display_snapshot)
2881 .row();
2882 let mut end_display_row =
2883 Point::new(hunk.associated_range.end, 0)
2884 .to_display_point(&snapshot.display_snapshot)
2885 .row();
2886 if end_display_row != start_display_row {
2887 end_display_row -= 1;
2888 }
2889 let color = match hunk.status() {
2890 DiffHunkStatus::Added => theme.status().created,
2891 DiffHunkStatus::Modified => theme.status().modified,
2892 DiffHunkStatus::Removed => theme.status().deleted,
2893 };
2894 ColoredRange {
2895 start: start_display_row,
2896 end: end_display_row,
2897 color,
2898 }
2899 });
2900
2901 marker_quads.extend(
2902 scrollbar_layout
2903 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
2904 );
2905 }
2906
2907 for (background_highlight_id, (_, background_ranges)) in
2908 background_highlights.iter()
2909 {
2910 let is_search_highlights = *background_highlight_id
2911 == TypeId::of::<BufferSearchHighlights>();
2912 let is_symbol_occurrences = *background_highlight_id
2913 == TypeId::of::<DocumentHighlightRead>()
2914 || *background_highlight_id
2915 == TypeId::of::<DocumentHighlightWrite>();
2916 if (is_search_highlights && scrollbar_settings.search_results)
2917 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
2918 {
2919 let mut color = theme.status().info;
2920 if is_symbol_occurrences {
2921 color.fade_out(0.5);
2922 }
2923 let marker_row_ranges =
2924 background_ranges.into_iter().map(|range| {
2925 let display_start = range
2926 .start
2927 .to_display_point(&snapshot.display_snapshot);
2928 let display_end = range
2929 .end
2930 .to_display_point(&snapshot.display_snapshot);
2931 ColoredRange {
2932 start: display_start.row(),
2933 end: display_end.row(),
2934 color,
2935 }
2936 });
2937 marker_quads.extend(
2938 scrollbar_layout
2939 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
2940 );
2941 }
2942 }
2943
2944 if scrollbar_settings.diagnostics {
2945 let max_point =
2946 snapshot.display_snapshot.buffer_snapshot.max_point();
2947
2948 let diagnostics = snapshot
2949 .buffer_snapshot
2950 .diagnostics_in_range::<_, Point>(
2951 Point::zero()..max_point,
2952 false,
2953 )
2954 // We want to sort by severity, in order to paint the most severe diagnostics last.
2955 .sorted_by_key(|diagnostic| {
2956 std::cmp::Reverse(diagnostic.diagnostic.severity)
2957 });
2958
2959 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
2960 let start_display = diagnostic
2961 .range
2962 .start
2963 .to_display_point(&snapshot.display_snapshot);
2964 let end_display = diagnostic
2965 .range
2966 .end
2967 .to_display_point(&snapshot.display_snapshot);
2968 let color = match diagnostic.diagnostic.severity {
2969 DiagnosticSeverity::ERROR => theme.status().error,
2970 DiagnosticSeverity::WARNING => theme.status().warning,
2971 DiagnosticSeverity::INFORMATION => theme.status().info,
2972 _ => theme.status().hint,
2973 };
2974 ColoredRange {
2975 start: start_display.row(),
2976 end: end_display.row(),
2977 color,
2978 }
2979 });
2980 marker_quads.extend(
2981 scrollbar_layout
2982 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
2983 );
2984 }
2985
2986 Arc::from(marker_quads)
2987 })
2988 .await;
2989
2990 editor.update(&mut cx, |editor, cx| {
2991 editor.scrollbar_marker_state.markers = scrollbar_markers;
2992 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
2993 editor.scrollbar_marker_state.pending_refresh = None;
2994 cx.notify();
2995 })?;
2996
2997 Ok(())
2998 }));
2999 });
3000 }
3001
3002 #[allow(clippy::too_many_arguments)]
3003 fn paint_highlighted_range(
3004 &self,
3005 range: Range<DisplayPoint>,
3006 color: Hsla,
3007 corner_radius: Pixels,
3008 line_end_overshoot: Pixels,
3009 layout: &EditorLayout,
3010 cx: &mut WindowContext,
3011 ) {
3012 let start_row = layout.visible_display_row_range.start;
3013 let end_row = layout.visible_display_row_range.end;
3014 if range.start != range.end {
3015 let row_range = if range.end.column() == 0 {
3016 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3017 } else {
3018 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row() + 1, end_row)
3019 };
3020
3021 let highlighted_range = HighlightedRange {
3022 color,
3023 line_height: layout.position_map.line_height,
3024 corner_radius,
3025 start_y: layout.content_origin.y
3026 + row_range.start as f32 * layout.position_map.line_height
3027 - layout.position_map.scroll_pixel_position.y,
3028 lines: row_range
3029 .into_iter()
3030 .map(|row| {
3031 let line_layout =
3032 &layout.position_map.line_layouts[(row - start_row) as usize].line;
3033 HighlightedRangeLine {
3034 start_x: if row == range.start.row() {
3035 layout.content_origin.x
3036 + line_layout.x_for_index(range.start.column() as usize)
3037 - layout.position_map.scroll_pixel_position.x
3038 } else {
3039 layout.content_origin.x
3040 - layout.position_map.scroll_pixel_position.x
3041 },
3042 end_x: if row == range.end.row() {
3043 layout.content_origin.x
3044 + line_layout.x_for_index(range.end.column() as usize)
3045 - layout.position_map.scroll_pixel_position.x
3046 } else {
3047 layout.content_origin.x + line_layout.width + line_end_overshoot
3048 - layout.position_map.scroll_pixel_position.x
3049 },
3050 }
3051 })
3052 .collect(),
3053 };
3054
3055 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3056 }
3057 }
3058
3059 fn paint_folds(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3060 if layout.folds.is_empty() {
3061 return;
3062 }
3063
3064 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3065 let fold_corner_radius = 0.15 * layout.position_map.line_height;
3066 for mut fold in mem::take(&mut layout.folds) {
3067 fold.hover_element.paint(cx);
3068
3069 let hover_element = fold.hover_element.downcast_mut::<Stateful<Div>>().unwrap();
3070 let fold_background = if hover_element.interactivity().active.unwrap() {
3071 cx.theme().colors().ghost_element_active
3072 } else if hover_element.interactivity().hovered.unwrap() {
3073 cx.theme().colors().ghost_element_hover
3074 } else {
3075 cx.theme().colors().ghost_element_background
3076 };
3077
3078 self.paint_highlighted_range(
3079 fold.display_range.clone(),
3080 fold_background,
3081 fold_corner_radius,
3082 fold_corner_radius * 2.,
3083 layout,
3084 cx,
3085 );
3086 }
3087 })
3088 }
3089
3090 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3091 if let Some(mut inline_blame) = layout.inline_blame.take() {
3092 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3093 inline_blame.paint(cx);
3094 })
3095 }
3096 }
3097
3098 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3099 for mut block in layout.blocks.drain(..) {
3100 block.element.paint(cx);
3101 }
3102 }
3103
3104 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3105 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3106 mouse_context_menu.paint(cx);
3107 }
3108 }
3109
3110 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3111 cx.on_mouse_event({
3112 let position_map = layout.position_map.clone();
3113 let editor = self.editor.clone();
3114 let hitbox = layout.hitbox.clone();
3115 let mut delta = ScrollDelta::default();
3116
3117 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3118 // accidentally turn off their scrolling.
3119 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3120
3121 move |event: &ScrollWheelEvent, phase, cx| {
3122 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3123 delta = delta.coalesce(event.delta);
3124 editor.update(cx, |editor, cx| {
3125 let position_map: &PositionMap = &position_map;
3126
3127 let line_height = position_map.line_height;
3128 let max_glyph_width = position_map.em_width;
3129 let (delta, axis) = match delta {
3130 gpui::ScrollDelta::Pixels(mut pixels) => {
3131 //Trackpad
3132 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3133 (pixels, axis)
3134 }
3135
3136 gpui::ScrollDelta::Lines(lines) => {
3137 //Not trackpad
3138 let pixels =
3139 point(lines.x * max_glyph_width, lines.y * line_height);
3140 (pixels, None)
3141 }
3142 };
3143
3144 let current_scroll_position = position_map.snapshot.scroll_position();
3145 let x = (current_scroll_position.x * max_glyph_width
3146 - (delta.x * scroll_sensitivity))
3147 / max_glyph_width;
3148 let y = (current_scroll_position.y * line_height
3149 - (delta.y * scroll_sensitivity))
3150 / line_height;
3151 let mut scroll_position =
3152 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
3153 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
3154 if forbid_vertical_scroll {
3155 scroll_position.y = current_scroll_position.y;
3156 if scroll_position == current_scroll_position {
3157 return;
3158 }
3159 }
3160 editor.scroll(scroll_position, axis, cx);
3161 cx.stop_propagation();
3162 });
3163 }
3164 }
3165 });
3166 }
3167
3168 fn paint_mouse_listeners(
3169 &mut self,
3170 layout: &EditorLayout,
3171 hovered_hunk: Option<HunkToExpand>,
3172 cx: &mut WindowContext,
3173 ) {
3174 self.paint_scroll_wheel_listener(layout, cx);
3175
3176 cx.on_mouse_event({
3177 let position_map = layout.position_map.clone();
3178 let editor = self.editor.clone();
3179 let text_hitbox = layout.text_hitbox.clone();
3180 let gutter_hitbox = layout.gutter_hitbox.clone();
3181
3182 move |event: &MouseDownEvent, phase, cx| {
3183 if phase == DispatchPhase::Bubble {
3184 match event.button {
3185 MouseButton::Left => editor.update(cx, |editor, cx| {
3186 Self::mouse_left_down(
3187 editor,
3188 event,
3189 hovered_hunk.as_ref(),
3190 &position_map,
3191 &text_hitbox,
3192 &gutter_hitbox,
3193 cx,
3194 );
3195 }),
3196 MouseButton::Right => editor.update(cx, |editor, cx| {
3197 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
3198 }),
3199 MouseButton::Middle => editor.update(cx, |editor, cx| {
3200 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
3201 }),
3202 _ => {}
3203 };
3204 }
3205 }
3206 });
3207
3208 cx.on_mouse_event({
3209 let editor = self.editor.clone();
3210 let position_map = layout.position_map.clone();
3211 let text_hitbox = layout.text_hitbox.clone();
3212
3213 move |event: &MouseUpEvent, phase, cx| {
3214 if phase == DispatchPhase::Bubble {
3215 editor.update(cx, |editor, cx| {
3216 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
3217 });
3218 }
3219 }
3220 });
3221 cx.on_mouse_event({
3222 let position_map = layout.position_map.clone();
3223 let editor = self.editor.clone();
3224 let text_hitbox = layout.text_hitbox.clone();
3225 let gutter_hitbox = layout.gutter_hitbox.clone();
3226
3227 move |event: &MouseMoveEvent, phase, cx| {
3228 if phase == DispatchPhase::Bubble {
3229 editor.update(cx, |editor, cx| {
3230 if event.pressed_button == Some(MouseButton::Left) {
3231 Self::mouse_dragged(
3232 editor,
3233 event,
3234 &position_map,
3235 text_hitbox.bounds,
3236 cx,
3237 )
3238 }
3239
3240 Self::mouse_moved(
3241 editor,
3242 event,
3243 &position_map,
3244 &text_hitbox,
3245 &gutter_hitbox,
3246 cx,
3247 )
3248 });
3249 }
3250 }
3251 });
3252 }
3253
3254 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
3255 bounds.upper_right().x - self.style.scrollbar_width
3256 }
3257
3258 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
3259 let style = &self.style;
3260 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3261 let layout = cx
3262 .text_system()
3263 .shape_line(
3264 SharedString::from(" ".repeat(column)),
3265 font_size,
3266 &[TextRun {
3267 len: column,
3268 font: style.text.font(),
3269 color: Hsla::default(),
3270 background_color: None,
3271 underline: None,
3272 strikethrough: None,
3273 }],
3274 )
3275 .unwrap();
3276
3277 layout.width
3278 }
3279
3280 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
3281 let digit_count = (snapshot.max_buffer_row() as f32 + 1.).log10().floor() as usize + 1;
3282 self.column_pixels(digit_count, cx)
3283 }
3284}
3285
3286fn prepaint_gutter_button(
3287 button: IconButton,
3288 row: u32,
3289 line_height: Pixels,
3290 gutter_dimensions: &GutterDimensions,
3291 scroll_pixel_position: gpui::Point<Pixels>,
3292 gutter_hitbox: &Hitbox,
3293 cx: &mut WindowContext<'_>,
3294) -> AnyElement {
3295 let mut button = button.into_any_element();
3296 let available_space = size(
3297 AvailableSpace::MinContent,
3298 AvailableSpace::Definite(line_height),
3299 );
3300 let indicator_size = button.layout_as_root(available_space, cx);
3301
3302 let blame_width = gutter_dimensions
3303 .git_blame_entries_width
3304 .unwrap_or(Pixels::ZERO);
3305
3306 let mut x = blame_width;
3307 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
3308 - indicator_size.width
3309 - blame_width;
3310 x += available_width / 2.;
3311
3312 let mut y = row as f32 * line_height - scroll_pixel_position.y;
3313 y += (line_height - indicator_size.height) / 2.;
3314
3315 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
3316 button
3317}
3318
3319fn render_inline_blame_entry(
3320 blame: &gpui::Model<GitBlame>,
3321 blame_entry: BlameEntry,
3322 style: &EditorStyle,
3323 workspace: Option<WeakView<Workspace>>,
3324 cx: &mut WindowContext<'_>,
3325) -> AnyElement {
3326 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3327
3328 let author = blame_entry.author.as_deref().unwrap_or_default();
3329 let text = format!("{}, {}", author, relative_timestamp);
3330
3331 let details = blame.read(cx).details_for_entry(&blame_entry);
3332
3333 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
3334
3335 h_flex()
3336 .id("inline-blame")
3337 .w_full()
3338 .font_family(style.text.font().family)
3339 .text_color(cx.theme().status().hint)
3340 .line_height(style.text.line_height)
3341 .child(Icon::new(IconName::FileGit).color(Color::Hint))
3342 .child(text)
3343 .gap_2()
3344 .hoverable_tooltip(move |_| tooltip.clone().into())
3345 .into_any()
3346}
3347
3348fn render_blame_entry(
3349 ix: usize,
3350 blame: &gpui::Model<GitBlame>,
3351 blame_entry: BlameEntry,
3352 style: &EditorStyle,
3353 last_used_color: &mut Option<(PlayerColor, Oid)>,
3354 editor: View<Editor>,
3355 cx: &mut WindowContext<'_>,
3356) -> AnyElement {
3357 let mut sha_color = cx
3358 .theme()
3359 .players()
3360 .color_for_participant(blame_entry.sha.into());
3361 // If the last color we used is the same as the one we get for this line, but
3362 // the commit SHAs are different, then we try again to get a different color.
3363 match *last_used_color {
3364 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
3365 let index: u32 = blame_entry.sha.into();
3366 sha_color = cx.theme().players().color_for_participant(index + 1);
3367 }
3368 _ => {}
3369 };
3370 last_used_color.replace((sha_color, blame_entry.sha));
3371
3372 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3373
3374 let short_commit_id = blame_entry.sha.display_short();
3375
3376 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
3377 let name = util::truncate_and_trailoff(author_name, 20);
3378
3379 let details = blame.read(cx).details_for_entry(&blame_entry);
3380
3381 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
3382
3383 let tooltip = cx.new_view(|_| {
3384 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
3385 });
3386
3387 h_flex()
3388 .w_full()
3389 .font_family(style.text.font().family)
3390 .line_height(style.text.line_height)
3391 .id(("blame", ix))
3392 .children([
3393 div()
3394 .text_color(sha_color.cursor)
3395 .child(short_commit_id)
3396 .mr_2(),
3397 div()
3398 .w_full()
3399 .h_flex()
3400 .justify_between()
3401 .text_color(cx.theme().status().hint)
3402 .child(name)
3403 .child(relative_timestamp),
3404 ])
3405 .on_mouse_down(MouseButton::Right, {
3406 let blame_entry = blame_entry.clone();
3407 move |event, cx| {
3408 deploy_blame_entry_context_menu(&blame_entry, editor.clone(), event.position, cx);
3409 }
3410 })
3411 .hover(|style| style.bg(cx.theme().colors().element_hover))
3412 .when_some(
3413 details.and_then(|details| details.permalink),
3414 |this, url| {
3415 let url = url.clone();
3416 this.cursor_pointer().on_click(move |_, cx| {
3417 cx.stop_propagation();
3418 cx.open_url(url.as_str())
3419 })
3420 },
3421 )
3422 .hoverable_tooltip(move |_| tooltip.clone().into())
3423 .into_any()
3424}
3425
3426fn deploy_blame_entry_context_menu(
3427 blame_entry: &BlameEntry,
3428 editor: View<Editor>,
3429 position: gpui::Point<Pixels>,
3430 cx: &mut WindowContext<'_>,
3431) {
3432 let context_menu = ContextMenu::build(cx, move |this, _| {
3433 let sha = format!("{}", blame_entry.sha);
3434 this.entry("Copy commit SHA", None, move |cx| {
3435 cx.write_to_clipboard(ClipboardItem::new(sha.clone()));
3436 })
3437 });
3438
3439 editor.update(cx, move |editor, cx| {
3440 editor.mouse_context_menu = Some(MouseContextMenu::new(position, context_menu, cx));
3441 cx.notify();
3442 });
3443}
3444
3445#[derive(Debug)]
3446pub(crate) struct LineWithInvisibles {
3447 pub line: ShapedLine,
3448 invisibles: Vec<Invisible>,
3449}
3450
3451impl LineWithInvisibles {
3452 fn from_chunks<'a>(
3453 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
3454 text_style: &TextStyle,
3455 max_line_len: usize,
3456 max_line_count: usize,
3457 line_number_layouts: &[Option<ShapedLine>],
3458 editor_mode: EditorMode,
3459 cx: &WindowContext,
3460 ) -> Vec<Self> {
3461 let mut layouts = Vec::with_capacity(max_line_count);
3462 let mut line = String::new();
3463 let mut invisibles = Vec::new();
3464 let mut styles = Vec::new();
3465 let mut non_whitespace_added = false;
3466 let mut row = 0;
3467 let mut line_exceeded_max_len = false;
3468 let font_size = text_style.font_size.to_pixels(cx.rem_size());
3469
3470 for highlighted_chunk in chunks.chain([HighlightedChunk {
3471 chunk: "\n",
3472 style: None,
3473 is_tab: false,
3474 }]) {
3475 for (ix, mut line_chunk) in highlighted_chunk.chunk.split('\n').enumerate() {
3476 if ix > 0 {
3477 let shaped_line = cx
3478 .text_system()
3479 .shape_line(line.clone().into(), font_size, &styles)
3480 .unwrap();
3481 layouts.push(Self {
3482 line: shaped_line,
3483 invisibles: std::mem::take(&mut invisibles),
3484 });
3485
3486 line.clear();
3487 styles.clear();
3488 row += 1;
3489 line_exceeded_max_len = false;
3490 non_whitespace_added = false;
3491 if row == max_line_count {
3492 return layouts;
3493 }
3494 }
3495
3496 if !line_chunk.is_empty() && !line_exceeded_max_len {
3497 let text_style = if let Some(style) = highlighted_chunk.style {
3498 Cow::Owned(text_style.clone().highlight(style))
3499 } else {
3500 Cow::Borrowed(text_style)
3501 };
3502
3503 if line.len() + line_chunk.len() > max_line_len {
3504 let mut chunk_len = max_line_len - line.len();
3505 while !line_chunk.is_char_boundary(chunk_len) {
3506 chunk_len -= 1;
3507 }
3508 line_chunk = &line_chunk[..chunk_len];
3509 line_exceeded_max_len = true;
3510 }
3511
3512 styles.push(TextRun {
3513 len: line_chunk.len(),
3514 font: text_style.font(),
3515 color: text_style.color,
3516 background_color: text_style.background_color,
3517 underline: text_style.underline,
3518 strikethrough: text_style.strikethrough,
3519 });
3520
3521 if editor_mode == EditorMode::Full {
3522 // Line wrap pads its contents with fake whitespaces,
3523 // avoid printing them
3524 let inside_wrapped_string = line_number_layouts
3525 .get(row)
3526 .and_then(|layout| layout.as_ref())
3527 .is_none();
3528 if highlighted_chunk.is_tab {
3529 if non_whitespace_added || !inside_wrapped_string {
3530 invisibles.push(Invisible::Tab {
3531 line_start_offset: line.len(),
3532 });
3533 }
3534 } else {
3535 invisibles.extend(
3536 line_chunk
3537 .chars()
3538 .enumerate()
3539 .filter(|(_, line_char)| {
3540 let is_whitespace = line_char.is_whitespace();
3541 non_whitespace_added |= !is_whitespace;
3542 is_whitespace
3543 && (non_whitespace_added || !inside_wrapped_string)
3544 })
3545 .map(|(whitespace_index, _)| Invisible::Whitespace {
3546 line_offset: line.len() + whitespace_index,
3547 }),
3548 )
3549 }
3550 }
3551
3552 line.push_str(line_chunk);
3553 }
3554 }
3555 }
3556
3557 layouts
3558 }
3559
3560 fn draw(
3561 &self,
3562 layout: &EditorLayout,
3563 row: u32,
3564 content_origin: gpui::Point<Pixels>,
3565 whitespace_setting: ShowWhitespaceSetting,
3566 selection_ranges: &[Range<DisplayPoint>],
3567 cx: &mut WindowContext,
3568 ) {
3569 let line_height = layout.position_map.line_height;
3570 let line_y =
3571 line_height * (row as f32 - layout.position_map.scroll_pixel_position.y / line_height);
3572
3573 let line_origin =
3574 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
3575 self.line.paint(line_origin, line_height, cx).log_err();
3576
3577 self.draw_invisibles(
3578 &selection_ranges,
3579 layout,
3580 content_origin,
3581 line_y,
3582 row,
3583 line_height,
3584 whitespace_setting,
3585 cx,
3586 );
3587 }
3588
3589 #[allow(clippy::too_many_arguments)]
3590 fn draw_invisibles(
3591 &self,
3592 selection_ranges: &[Range<DisplayPoint>],
3593 layout: &EditorLayout,
3594 content_origin: gpui::Point<Pixels>,
3595 line_y: Pixels,
3596 row: u32,
3597 line_height: Pixels,
3598 whitespace_setting: ShowWhitespaceSetting,
3599 cx: &mut WindowContext,
3600 ) {
3601 let allowed_invisibles_regions = match whitespace_setting {
3602 ShowWhitespaceSetting::None => return,
3603 ShowWhitespaceSetting::Selection => Some(selection_ranges),
3604 ShowWhitespaceSetting::All => None,
3605 };
3606
3607 for invisible in &self.invisibles {
3608 let (&token_offset, invisible_symbol) = match invisible {
3609 Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
3610 Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
3611 };
3612
3613 let x_offset = self.line.x_for_index(token_offset);
3614 let invisible_offset =
3615 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
3616 let origin = content_origin
3617 + gpui::point(
3618 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
3619 line_y,
3620 );
3621
3622 if let Some(allowed_regions) = allowed_invisibles_regions {
3623 let invisible_point = DisplayPoint::new(row, token_offset as u32);
3624 if !allowed_regions
3625 .iter()
3626 .any(|region| region.start <= invisible_point && invisible_point < region.end)
3627 {
3628 continue;
3629 }
3630 }
3631 invisible_symbol.paint(origin, line_height, cx).log_err();
3632 }
3633 }
3634}
3635
3636#[derive(Debug, Clone, Copy, PartialEq, Eq)]
3637enum Invisible {
3638 Tab { line_start_offset: usize },
3639 Whitespace { line_offset: usize },
3640}
3641
3642impl Element for EditorElement {
3643 type RequestLayoutState = ();
3644 type PrepaintState = EditorLayout;
3645
3646 fn id(&self) -> Option<ElementId> {
3647 None
3648 }
3649
3650 fn request_layout(
3651 &mut self,
3652 _: Option<&GlobalElementId>,
3653 cx: &mut WindowContext,
3654 ) -> (gpui::LayoutId, ()) {
3655 self.editor.update(cx, |editor, cx| {
3656 editor.set_style(self.style.clone(), cx);
3657
3658 let layout_id = match editor.mode {
3659 EditorMode::SingleLine => {
3660 let rem_size = cx.rem_size();
3661 let mut style = Style::default();
3662 style.size.width = relative(1.).into();
3663 style.size.height = self.style.text.line_height_in_pixels(rem_size).into();
3664 cx.request_layout(&style, None)
3665 }
3666 EditorMode::AutoHeight { max_lines } => {
3667 let editor_handle = cx.view().clone();
3668 let max_line_number_width =
3669 self.max_line_number_width(&editor.snapshot(cx), cx);
3670 cx.request_measured_layout(Style::default(), move |known_dimensions, _, cx| {
3671 editor_handle
3672 .update(cx, |editor, cx| {
3673 compute_auto_height_layout(
3674 editor,
3675 max_lines,
3676 max_line_number_width,
3677 known_dimensions,
3678 cx,
3679 )
3680 })
3681 .unwrap_or_default()
3682 })
3683 }
3684 EditorMode::Full => {
3685 let mut style = Style::default();
3686 style.size.width = relative(1.).into();
3687 style.size.height = relative(1.).into();
3688 cx.request_layout(&style, None)
3689 }
3690 };
3691
3692 (layout_id, ())
3693 })
3694 }
3695
3696 fn prepaint(
3697 &mut self,
3698 _: Option<&GlobalElementId>,
3699 bounds: Bounds<Pixels>,
3700 _: &mut Self::RequestLayoutState,
3701 cx: &mut WindowContext,
3702 ) -> Self::PrepaintState {
3703 let text_style = TextStyleRefinement {
3704 font_size: Some(self.style.text.font_size),
3705 line_height: Some(self.style.text.line_height),
3706 ..Default::default()
3707 };
3708 cx.set_view_id(self.editor.entity_id());
3709 cx.with_text_style(Some(text_style), |cx| {
3710 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
3711 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
3712 let style = self.style.clone();
3713
3714 let font_id = cx.text_system().resolve_font(&style.text.font());
3715 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3716 let line_height = style.text.line_height_in_pixels(cx.rem_size());
3717 let em_width = cx
3718 .text_system()
3719 .typographic_bounds(font_id, font_size, 'm')
3720 .unwrap()
3721 .size
3722 .width;
3723 let em_advance = cx
3724 .text_system()
3725 .advance(font_id, font_size, 'm')
3726 .unwrap()
3727 .width;
3728
3729 let gutter_dimensions = snapshot.gutter_dimensions(
3730 font_id,
3731 font_size,
3732 em_width,
3733 self.max_line_number_width(&snapshot, cx),
3734 cx,
3735 );
3736 let text_width = bounds.size.width - gutter_dimensions.width;
3737 let overscroll = size(em_width, px(0.));
3738
3739 snapshot = self.editor.update(cx, |editor, cx| {
3740 editor.last_bounds = Some(bounds);
3741 editor.gutter_dimensions = gutter_dimensions;
3742 editor.set_visible_line_count(bounds.size.height / line_height, cx);
3743
3744 let editor_width =
3745 text_width - gutter_dimensions.margin - overscroll.width - em_width;
3746 let wrap_width = match editor.soft_wrap_mode(cx) {
3747 SoftWrap::None => None,
3748 SoftWrap::PreferLine => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
3749 SoftWrap::EditorWidth => Some(editor_width),
3750 SoftWrap::Column(column) => {
3751 Some(editor_width.min(column as f32 * em_advance))
3752 }
3753 };
3754
3755 if editor.set_wrap_width(wrap_width, cx) {
3756 editor.snapshot(cx)
3757 } else {
3758 snapshot
3759 }
3760 });
3761
3762 let wrap_guides = self
3763 .editor
3764 .read(cx)
3765 .wrap_guides(cx)
3766 .iter()
3767 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
3768 .collect::<SmallVec<[_; 2]>>();
3769
3770 let hitbox = cx.insert_hitbox(bounds, false);
3771 let gutter_hitbox = cx.insert_hitbox(
3772 Bounds {
3773 origin: bounds.origin,
3774 size: size(gutter_dimensions.width, bounds.size.height),
3775 },
3776 false,
3777 );
3778 let text_hitbox = cx.insert_hitbox(
3779 Bounds {
3780 origin: gutter_hitbox.upper_right(),
3781 size: size(text_width, bounds.size.height),
3782 },
3783 false,
3784 );
3785 // Offset the content_bounds from the text_bounds by the gutter margin (which
3786 // is roughly half a character wide) to make hit testing work more like how we want.
3787 let content_origin =
3788 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
3789
3790 let mut autoscroll_containing_element = false;
3791 let mut autoscroll_horizontally = false;
3792 self.editor.update(cx, |editor, cx| {
3793 autoscroll_containing_element =
3794 editor.autoscroll_requested() || editor.has_pending_selection();
3795 autoscroll_horizontally = editor.autoscroll_vertically(bounds, line_height, cx);
3796 snapshot = editor.snapshot(cx);
3797 });
3798
3799 let mut scroll_position = snapshot.scroll_position();
3800 // The scroll position is a fractional point, the whole number of which represents
3801 // the top of the window in terms of display rows.
3802 let start_row = scroll_position.y as u32;
3803 let height_in_lines = bounds.size.height / line_height;
3804 let max_row = snapshot.max_point().row();
3805 let end_row = cmp::min(
3806 (scroll_position.y + height_in_lines).ceil() as u32,
3807 max_row + 1,
3808 );
3809
3810 let buffer_rows = snapshot
3811 .buffer_rows(start_row)
3812 .take((start_row..end_row).len());
3813
3814 let start_anchor = if start_row == 0 {
3815 Anchor::min()
3816 } else {
3817 snapshot.buffer_snapshot.anchor_before(
3818 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
3819 )
3820 };
3821 let end_anchor = if end_row > max_row {
3822 Anchor::max()
3823 } else {
3824 snapshot.buffer_snapshot.anchor_before(
3825 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
3826 )
3827 };
3828
3829 let highlighted_rows = self.editor.update(cx, |editor, cx| {
3830 editor.highlighted_display_rows(HashSet::default(), cx)
3831 });
3832 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
3833 start_anchor..end_anchor,
3834 &snapshot.display_snapshot,
3835 cx.theme().colors(),
3836 );
3837
3838 let redacted_ranges = self.editor.read(cx).redacted_ranges(
3839 start_anchor..end_anchor,
3840 &snapshot.display_snapshot,
3841 cx,
3842 );
3843
3844 let (selections, active_rows, newest_selection_head) = self.layout_selections(
3845 start_anchor,
3846 end_anchor,
3847 &snapshot,
3848 start_row,
3849 end_row,
3850 cx,
3851 );
3852
3853 let (line_numbers, fold_statuses) = self.layout_line_numbers(
3854 start_row..end_row,
3855 buffer_rows.clone(),
3856 &active_rows,
3857 newest_selection_head,
3858 &snapshot,
3859 cx,
3860 );
3861
3862 let display_hunks = self.layout_git_gutters(
3863 line_height,
3864 &gutter_hitbox,
3865 start_row..end_row,
3866 &snapshot,
3867 cx,
3868 );
3869
3870 let mut max_visible_line_width = Pixels::ZERO;
3871 let line_layouts =
3872 self.layout_lines(start_row..end_row, &line_numbers, &snapshot, cx);
3873 for line_with_invisibles in &line_layouts {
3874 if line_with_invisibles.line.width > max_visible_line_width {
3875 max_visible_line_width = line_with_invisibles.line.width;
3876 }
3877 }
3878
3879 let longest_line_width = layout_line(snapshot.longest_row(), &snapshot, &style, cx)
3880 .unwrap()
3881 .width;
3882 let mut scroll_width =
3883 longest_line_width.max(max_visible_line_width) + overscroll.width;
3884
3885 let mut blocks = cx.with_element_namespace("blocks", |cx| {
3886 self.build_blocks(
3887 start_row..end_row,
3888 &snapshot,
3889 &hitbox,
3890 &text_hitbox,
3891 &mut scroll_width,
3892 &gutter_dimensions,
3893 em_width,
3894 gutter_dimensions.width + gutter_dimensions.margin,
3895 line_height,
3896 &line_layouts,
3897 cx,
3898 )
3899 });
3900
3901 let scroll_pixel_position = point(
3902 scroll_position.x * em_width,
3903 scroll_position.y * line_height,
3904 );
3905
3906 let mut inline_blame = None;
3907 if let Some(newest_selection_head) = newest_selection_head {
3908 let display_row = newest_selection_head.row();
3909 if (start_row..end_row).contains(&display_row) {
3910 let line_layout = &line_layouts[(display_row - start_row) as usize];
3911 inline_blame = self.layout_inline_blame(
3912 display_row,
3913 &snapshot.display_snapshot,
3914 line_layout,
3915 em_width,
3916 content_origin,
3917 scroll_pixel_position,
3918 line_height,
3919 cx,
3920 );
3921 }
3922 }
3923
3924 let blamed_display_rows = self.layout_blame_entries(
3925 buffer_rows,
3926 em_width,
3927 scroll_position,
3928 line_height,
3929 &gutter_hitbox,
3930 gutter_dimensions.git_blame_entries_width,
3931 cx,
3932 );
3933
3934 let scroll_max = point(
3935 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
3936 max_row as f32,
3937 );
3938
3939 self.editor.update(cx, |editor, cx| {
3940 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
3941
3942 let autoscrolled = if autoscroll_horizontally {
3943 editor.autoscroll_horizontally(
3944 start_row,
3945 text_hitbox.size.width,
3946 scroll_width,
3947 em_width,
3948 &line_layouts,
3949 cx,
3950 )
3951 } else {
3952 false
3953 };
3954
3955 if clamped || autoscrolled {
3956 snapshot = editor.snapshot(cx);
3957 scroll_position = snapshot.scroll_position();
3958 }
3959 });
3960
3961 cx.with_element_namespace("blocks", |cx| {
3962 self.layout_blocks(
3963 &mut blocks,
3964 &hitbox,
3965 line_height,
3966 scroll_pixel_position,
3967 cx,
3968 );
3969 });
3970
3971 let cursors = self.collect_cursors(&snapshot, cx);
3972 let visible_row_range = start_row..end_row;
3973 let non_visible_cursors = cursors
3974 .iter()
3975 .any(move |c| !visible_row_range.contains(&c.0.row()));
3976
3977 let visible_cursors = self.layout_visible_cursors(
3978 &snapshot,
3979 &selections,
3980 start_row..end_row,
3981 &line_layouts,
3982 &text_hitbox,
3983 content_origin,
3984 scroll_position,
3985 scroll_pixel_position,
3986 line_height,
3987 em_width,
3988 autoscroll_containing_element,
3989 cx,
3990 );
3991
3992 let scrollbar_layout = self.layout_scrollbar(
3993 &snapshot,
3994 bounds,
3995 scroll_position,
3996 height_in_lines,
3997 non_visible_cursors,
3998 cx,
3999 );
4000
4001 let folds = cx.with_element_namespace("folds", |cx| {
4002 self.layout_folds(
4003 &snapshot,
4004 content_origin,
4005 start_anchor..end_anchor,
4006 start_row..end_row,
4007 scroll_pixel_position,
4008 line_height,
4009 &line_layouts,
4010 cx,
4011 )
4012 });
4013
4014 let gutter_settings = EditorSettings::get_global(cx).gutter;
4015
4016 let mut context_menu_visible = false;
4017 let mut code_actions_indicator = None;
4018 if let Some(newest_selection_head) = newest_selection_head {
4019 if (start_row..end_row).contains(&newest_selection_head.row()) {
4020 context_menu_visible = self.layout_context_menu(
4021 line_height,
4022 &hitbox,
4023 &text_hitbox,
4024 content_origin,
4025 start_row,
4026 scroll_pixel_position,
4027 &line_layouts,
4028 newest_selection_head,
4029 gutter_dimensions.width - gutter_dimensions.left_padding,
4030 cx,
4031 );
4032 if gutter_settings.code_actions {
4033 let newest_selection_point =
4034 newest_selection_head.to_point(&snapshot.display_snapshot);
4035 let has_test_indicator = self
4036 .editor
4037 .read(cx)
4038 .tasks
4039 .contains_key(&newest_selection_point.row);
4040 if !has_test_indicator {
4041 code_actions_indicator = self.layout_code_actions_indicator(
4042 line_height,
4043 newest_selection_head,
4044 scroll_pixel_position,
4045 &gutter_dimensions,
4046 &gutter_hitbox,
4047 cx,
4048 );
4049 }
4050 }
4051 }
4052 }
4053
4054 let test_indicators = self.layout_run_indicators(
4055 line_height,
4056 scroll_pixel_position,
4057 &gutter_dimensions,
4058 &gutter_hitbox,
4059 &snapshot,
4060 cx,
4061 );
4062
4063 if !context_menu_visible && !cx.has_active_drag() {
4064 self.layout_hover_popovers(
4065 &snapshot,
4066 &hitbox,
4067 &text_hitbox,
4068 start_row..end_row,
4069 content_origin,
4070 scroll_pixel_position,
4071 &line_layouts,
4072 line_height,
4073 em_width,
4074 cx,
4075 );
4076 }
4077
4078 let mouse_context_menu = self.layout_mouse_context_menu(cx);
4079
4080 let fold_indicators = if gutter_settings.folds {
4081 cx.with_element_namespace("gutter_fold_indicators", |cx| {
4082 self.layout_gutter_fold_indicators(
4083 fold_statuses,
4084 line_height,
4085 &gutter_dimensions,
4086 gutter_settings,
4087 scroll_pixel_position,
4088 &gutter_hitbox,
4089 cx,
4090 )
4091 })
4092 } else {
4093 Vec::new()
4094 };
4095
4096 let invisible_symbol_font_size = font_size / 2.;
4097 let tab_invisible = cx
4098 .text_system()
4099 .shape_line(
4100 "→".into(),
4101 invisible_symbol_font_size,
4102 &[TextRun {
4103 len: "→".len(),
4104 font: self.style.text.font(),
4105 color: cx.theme().colors().editor_invisible,
4106 background_color: None,
4107 underline: None,
4108 strikethrough: None,
4109 }],
4110 )
4111 .unwrap();
4112 let space_invisible = cx
4113 .text_system()
4114 .shape_line(
4115 "•".into(),
4116 invisible_symbol_font_size,
4117 &[TextRun {
4118 len: "•".len(),
4119 font: self.style.text.font(),
4120 color: cx.theme().colors().editor_invisible,
4121 background_color: None,
4122 underline: None,
4123 strikethrough: None,
4124 }],
4125 )
4126 .unwrap();
4127
4128 EditorLayout {
4129 mode: snapshot.mode,
4130 position_map: Arc::new(PositionMap {
4131 size: bounds.size,
4132 scroll_pixel_position,
4133 scroll_max,
4134 line_layouts,
4135 line_height,
4136 em_width,
4137 em_advance,
4138 snapshot,
4139 }),
4140 visible_display_row_range: start_row..end_row,
4141 wrap_guides,
4142 hitbox,
4143 text_hitbox,
4144 gutter_hitbox,
4145 gutter_dimensions,
4146 content_origin,
4147 scrollbar_layout,
4148 max_row,
4149 active_rows,
4150 highlighted_rows,
4151 highlighted_ranges,
4152 redacted_ranges,
4153 line_numbers,
4154 display_hunks,
4155 blamed_display_rows,
4156 inline_blame,
4157 folds,
4158 blocks,
4159 cursors,
4160 visible_cursors,
4161 selections,
4162 mouse_context_menu,
4163 test_indicators,
4164 code_actions_indicator,
4165 fold_indicators,
4166 tab_invisible,
4167 space_invisible,
4168 }
4169 })
4170 })
4171 }
4172
4173 fn paint(
4174 &mut self,
4175 _: Option<&GlobalElementId>,
4176 bounds: Bounds<gpui::Pixels>,
4177 _: &mut Self::RequestLayoutState,
4178 layout: &mut Self::PrepaintState,
4179 cx: &mut WindowContext,
4180 ) {
4181 let focus_handle = self.editor.focus_handle(cx);
4182 let key_context = self.editor.read(cx).key_context(cx);
4183 cx.set_focus_handle(&focus_handle);
4184 cx.set_key_context(key_context);
4185 cx.handle_input(
4186 &focus_handle,
4187 ElementInputHandler::new(bounds, self.editor.clone()),
4188 );
4189 self.register_actions(cx);
4190 self.register_key_listeners(cx, layout);
4191
4192 let text_style = TextStyleRefinement {
4193 font_size: Some(self.style.text.font_size),
4194 line_height: Some(self.style.text.line_height),
4195 ..Default::default()
4196 };
4197 let mouse_position = cx.mouse_position();
4198 let hovered_hunk = layout
4199 .display_hunks
4200 .iter()
4201 .find_map(|(hunk, hunk_hitbox)| match hunk {
4202 DisplayDiffHunk::Folded { .. } => None,
4203 DisplayDiffHunk::Unfolded {
4204 diff_base_byte_range,
4205 multi_buffer_range,
4206 status,
4207 ..
4208 } => {
4209 if hunk_hitbox
4210 .as_ref()
4211 .map(|hitbox| hitbox.contains(&mouse_position))
4212 .unwrap_or(false)
4213 {
4214 Some(HunkToExpand {
4215 status: *status,
4216 multi_buffer_range: multi_buffer_range.clone(),
4217 diff_base_byte_range: diff_base_byte_range.clone(),
4218 })
4219 } else {
4220 None
4221 }
4222 }
4223 });
4224 cx.with_text_style(Some(text_style), |cx| {
4225 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
4226 self.paint_mouse_listeners(layout, hovered_hunk, cx);
4227 self.paint_background(layout, cx);
4228 if layout.gutter_hitbox.size.width > Pixels::ZERO {
4229 self.paint_gutter(layout, cx)
4230 }
4231
4232 self.paint_text(layout, cx);
4233
4234 if !layout.blocks.is_empty() {
4235 cx.with_element_namespace("blocks", |cx| {
4236 self.paint_blocks(layout, cx);
4237 });
4238 }
4239
4240 self.paint_scrollbar(layout, cx);
4241 self.paint_mouse_context_menu(layout, cx);
4242 });
4243 })
4244 }
4245}
4246
4247impl IntoElement for EditorElement {
4248 type Element = Self;
4249
4250 fn into_element(self) -> Self::Element {
4251 self
4252 }
4253}
4254
4255type BufferRow = u32;
4256
4257pub struct EditorLayout {
4258 position_map: Arc<PositionMap>,
4259 hitbox: Hitbox,
4260 text_hitbox: Hitbox,
4261 gutter_hitbox: Hitbox,
4262 gutter_dimensions: GutterDimensions,
4263 content_origin: gpui::Point<Pixels>,
4264 scrollbar_layout: Option<ScrollbarLayout>,
4265 mode: EditorMode,
4266 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
4267 visible_display_row_range: Range<u32>,
4268 active_rows: BTreeMap<u32, bool>,
4269 highlighted_rows: BTreeMap<u32, Hsla>,
4270 line_numbers: Vec<Option<ShapedLine>>,
4271 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
4272 blamed_display_rows: Option<Vec<AnyElement>>,
4273 inline_blame: Option<AnyElement>,
4274 folds: Vec<FoldLayout>,
4275 blocks: Vec<BlockLayout>,
4276 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
4277 redacted_ranges: Vec<Range<DisplayPoint>>,
4278 cursors: Vec<(DisplayPoint, Hsla)>,
4279 visible_cursors: Vec<CursorLayout>,
4280 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
4281 max_row: u32,
4282 code_actions_indicator: Option<AnyElement>,
4283 test_indicators: Vec<AnyElement>,
4284 fold_indicators: Vec<Option<AnyElement>>,
4285 mouse_context_menu: Option<AnyElement>,
4286 tab_invisible: ShapedLine,
4287 space_invisible: ShapedLine,
4288}
4289
4290impl EditorLayout {
4291 fn line_end_overshoot(&self) -> Pixels {
4292 0.15 * self.position_map.line_height
4293 }
4294}
4295
4296struct ColoredRange<T> {
4297 start: T,
4298 end: T,
4299 color: Hsla,
4300}
4301
4302#[derive(Clone)]
4303struct ScrollbarLayout {
4304 hitbox: Hitbox,
4305 visible_row_range: Range<f32>,
4306 visible: bool,
4307 row_height: Pixels,
4308 thumb_height: Pixels,
4309}
4310
4311impl ScrollbarLayout {
4312 const BORDER_WIDTH: Pixels = px(1.0);
4313 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
4314 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
4315 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
4316
4317 fn thumb_bounds(&self) -> Bounds<Pixels> {
4318 let thumb_top = self.y_for_row(self.visible_row_range.start);
4319 let thumb_bottom = thumb_top + self.thumb_height;
4320 Bounds::from_corners(
4321 point(self.hitbox.left(), thumb_top),
4322 point(self.hitbox.right(), thumb_bottom),
4323 )
4324 }
4325
4326 fn y_for_row(&self, row: f32) -> Pixels {
4327 self.hitbox.top() + row * self.row_height
4328 }
4329
4330 fn marker_quads_for_ranges(
4331 &self,
4332 row_ranges: impl IntoIterator<Item = ColoredRange<u32>>,
4333 column: Option<usize>,
4334 ) -> Vec<PaintQuad> {
4335 struct MinMax {
4336 min: Pixels,
4337 max: Pixels,
4338 }
4339 let (x_range, height_limit) = if let Some(column) = column {
4340 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
4341 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
4342 let end = start + column_width;
4343 (
4344 Range { start, end },
4345 MinMax {
4346 min: Self::MIN_MARKER_HEIGHT,
4347 max: px(f32::MAX),
4348 },
4349 )
4350 } else {
4351 (
4352 Range {
4353 start: Self::BORDER_WIDTH,
4354 end: self.hitbox.size.width,
4355 },
4356 MinMax {
4357 min: Self::LINE_MARKER_HEIGHT,
4358 max: Self::LINE_MARKER_HEIGHT,
4359 },
4360 )
4361 };
4362
4363 let row_to_y = |row: u32| row as f32 * self.row_height;
4364 let mut pixel_ranges = row_ranges
4365 .into_iter()
4366 .map(|range| {
4367 let start_y = row_to_y(range.start);
4368 let end_y = row_to_y(range.end)
4369 + self.row_height.max(height_limit.min).min(height_limit.max);
4370 ColoredRange {
4371 start: start_y,
4372 end: end_y,
4373 color: range.color,
4374 }
4375 })
4376 .peekable();
4377
4378 let mut quads = Vec::new();
4379 while let Some(mut pixel_range) = pixel_ranges.next() {
4380 while let Some(next_pixel_range) = pixel_ranges.peek() {
4381 if pixel_range.end >= next_pixel_range.start - px(1.0)
4382 && pixel_range.color == next_pixel_range.color
4383 {
4384 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
4385 pixel_ranges.next();
4386 } else {
4387 break;
4388 }
4389 }
4390
4391 let bounds = Bounds::from_corners(
4392 point(x_range.start, pixel_range.start),
4393 point(x_range.end, pixel_range.end),
4394 );
4395 quads.push(quad(
4396 bounds,
4397 Corners::default(),
4398 pixel_range.color,
4399 Edges::default(),
4400 Hsla::transparent_black(),
4401 ));
4402 }
4403
4404 quads
4405 }
4406}
4407
4408struct FoldLayout {
4409 display_range: Range<DisplayPoint>,
4410 hover_element: AnyElement,
4411}
4412
4413struct PositionMap {
4414 size: Size<Pixels>,
4415 line_height: Pixels,
4416 scroll_pixel_position: gpui::Point<Pixels>,
4417 scroll_max: gpui::Point<f32>,
4418 em_width: Pixels,
4419 em_advance: Pixels,
4420 line_layouts: Vec<LineWithInvisibles>,
4421 snapshot: EditorSnapshot,
4422}
4423
4424#[derive(Debug, Copy, Clone)]
4425pub struct PointForPosition {
4426 pub previous_valid: DisplayPoint,
4427 pub next_valid: DisplayPoint,
4428 pub exact_unclipped: DisplayPoint,
4429 pub column_overshoot_after_line_end: u32,
4430}
4431
4432impl PointForPosition {
4433 pub fn as_valid(&self) -> Option<DisplayPoint> {
4434 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
4435 Some(self.previous_valid)
4436 } else {
4437 None
4438 }
4439 }
4440}
4441
4442impl PositionMap {
4443 fn point_for_position(
4444 &self,
4445 text_bounds: Bounds<Pixels>,
4446 position: gpui::Point<Pixels>,
4447 ) -> PointForPosition {
4448 let scroll_position = self.snapshot.scroll_position();
4449 let position = position - text_bounds.origin;
4450 let y = position.y.max(px(0.)).min(self.size.height);
4451 let x = position.x + (scroll_position.x * self.em_width);
4452 let row = ((y / self.line_height) + scroll_position.y) as u32;
4453
4454 let (column, x_overshoot_after_line_end) = if let Some(line) = self
4455 .line_layouts
4456 .get(row as usize - scroll_position.y as usize)
4457 .map(|LineWithInvisibles { line, .. }| line)
4458 {
4459 if let Some(ix) = line.index_for_x(x) {
4460 (ix as u32, px(0.))
4461 } else {
4462 (line.len as u32, px(0.).max(x - line.width))
4463 }
4464 } else {
4465 (0, x)
4466 };
4467
4468 let mut exact_unclipped = DisplayPoint::new(row, column);
4469 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
4470 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
4471
4472 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
4473 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
4474 PointForPosition {
4475 previous_valid,
4476 next_valid,
4477 exact_unclipped,
4478 column_overshoot_after_line_end,
4479 }
4480 }
4481}
4482
4483struct BlockLayout {
4484 row: u32,
4485 element: AnyElement,
4486 available_space: Size<AvailableSpace>,
4487 style: BlockStyle,
4488}
4489
4490fn layout_line(
4491 row: u32,
4492 snapshot: &EditorSnapshot,
4493 style: &EditorStyle,
4494 cx: &WindowContext,
4495) -> Result<ShapedLine> {
4496 let mut line = snapshot.line(row);
4497
4498 if line.len() > MAX_LINE_LEN {
4499 let mut len = MAX_LINE_LEN;
4500 while !line.is_char_boundary(len) {
4501 len -= 1;
4502 }
4503
4504 line.truncate(len);
4505 }
4506
4507 cx.text_system().shape_line(
4508 line.into(),
4509 style.text.font_size.to_pixels(cx.rem_size()),
4510 &[TextRun {
4511 len: snapshot.line_len(row) as usize,
4512 font: style.text.font(),
4513 color: Hsla::default(),
4514 background_color: None,
4515 underline: None,
4516 strikethrough: None,
4517 }],
4518 )
4519}
4520
4521pub struct CursorLayout {
4522 origin: gpui::Point<Pixels>,
4523 block_width: Pixels,
4524 line_height: Pixels,
4525 color: Hsla,
4526 shape: CursorShape,
4527 block_text: Option<ShapedLine>,
4528 cursor_name: Option<AnyElement>,
4529}
4530
4531#[derive(Debug)]
4532pub struct CursorName {
4533 string: SharedString,
4534 color: Hsla,
4535 is_top_row: bool,
4536}
4537
4538impl CursorLayout {
4539 pub fn new(
4540 origin: gpui::Point<Pixels>,
4541 block_width: Pixels,
4542 line_height: Pixels,
4543 color: Hsla,
4544 shape: CursorShape,
4545 block_text: Option<ShapedLine>,
4546 ) -> CursorLayout {
4547 CursorLayout {
4548 origin,
4549 block_width,
4550 line_height,
4551 color,
4552 shape,
4553 block_text,
4554 cursor_name: None,
4555 }
4556 }
4557
4558 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4559 Bounds {
4560 origin: self.origin + origin,
4561 size: size(self.block_width, self.line_height),
4562 }
4563 }
4564
4565 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4566 match self.shape {
4567 CursorShape::Bar => Bounds {
4568 origin: self.origin + origin,
4569 size: size(px(2.0), self.line_height),
4570 },
4571 CursorShape::Block | CursorShape::Hollow => Bounds {
4572 origin: self.origin + origin,
4573 size: size(self.block_width, self.line_height),
4574 },
4575 CursorShape::Underscore => Bounds {
4576 origin: self.origin
4577 + origin
4578 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
4579 size: size(self.block_width, px(2.0)),
4580 },
4581 }
4582 }
4583
4584 pub fn layout(
4585 &mut self,
4586 origin: gpui::Point<Pixels>,
4587 cursor_name: Option<CursorName>,
4588 cx: &mut WindowContext,
4589 ) {
4590 if let Some(cursor_name) = cursor_name {
4591 let bounds = self.bounds(origin);
4592 let text_size = self.line_height / 1.5;
4593
4594 let name_origin = if cursor_name.is_top_row {
4595 point(bounds.right() - px(1.), bounds.top())
4596 } else {
4597 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
4598 };
4599 let mut name_element = div()
4600 .bg(self.color)
4601 .text_size(text_size)
4602 .px_0p5()
4603 .line_height(text_size + px(2.))
4604 .text_color(cursor_name.color)
4605 .child(cursor_name.string.clone())
4606 .into_any_element();
4607
4608 name_element.prepaint_as_root(
4609 name_origin,
4610 size(AvailableSpace::MinContent, AvailableSpace::MinContent),
4611 cx,
4612 );
4613
4614 self.cursor_name = Some(name_element);
4615 }
4616 }
4617
4618 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
4619 let bounds = self.bounds(origin);
4620
4621 //Draw background or border quad
4622 let cursor = if matches!(self.shape, CursorShape::Hollow) {
4623 outline(bounds, self.color)
4624 } else {
4625 fill(bounds, self.color)
4626 };
4627
4628 if let Some(name) = &mut self.cursor_name {
4629 name.paint(cx);
4630 }
4631
4632 cx.paint_quad(cursor);
4633
4634 if let Some(block_text) = &self.block_text {
4635 block_text
4636 .paint(self.origin + origin, self.line_height, cx)
4637 .log_err();
4638 }
4639 }
4640
4641 pub fn shape(&self) -> CursorShape {
4642 self.shape
4643 }
4644}
4645
4646#[derive(Debug)]
4647pub struct HighlightedRange {
4648 pub start_y: Pixels,
4649 pub line_height: Pixels,
4650 pub lines: Vec<HighlightedRangeLine>,
4651 pub color: Hsla,
4652 pub corner_radius: Pixels,
4653}
4654
4655#[derive(Debug)]
4656pub struct HighlightedRangeLine {
4657 pub start_x: Pixels,
4658 pub end_x: Pixels,
4659}
4660
4661impl HighlightedRange {
4662 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
4663 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
4664 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
4665 self.paint_lines(
4666 self.start_y + self.line_height,
4667 &self.lines[1..],
4668 bounds,
4669 cx,
4670 );
4671 } else {
4672 self.paint_lines(self.start_y, &self.lines, bounds, cx);
4673 }
4674 }
4675
4676 fn paint_lines(
4677 &self,
4678 start_y: Pixels,
4679 lines: &[HighlightedRangeLine],
4680 _bounds: Bounds<Pixels>,
4681 cx: &mut WindowContext,
4682 ) {
4683 if lines.is_empty() {
4684 return;
4685 }
4686
4687 let first_line = lines.first().unwrap();
4688 let last_line = lines.last().unwrap();
4689
4690 let first_top_left = point(first_line.start_x, start_y);
4691 let first_top_right = point(first_line.end_x, start_y);
4692
4693 let curve_height = point(Pixels::ZERO, self.corner_radius);
4694 let curve_width = |start_x: Pixels, end_x: Pixels| {
4695 let max = (end_x - start_x) / 2.;
4696 let width = if max < self.corner_radius {
4697 max
4698 } else {
4699 self.corner_radius
4700 };
4701
4702 point(width, Pixels::ZERO)
4703 };
4704
4705 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
4706 let mut path = gpui::Path::new(first_top_right - top_curve_width);
4707 path.curve_to(first_top_right + curve_height, first_top_right);
4708
4709 let mut iter = lines.iter().enumerate().peekable();
4710 while let Some((ix, line)) = iter.next() {
4711 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
4712
4713 if let Some((_, next_line)) = iter.peek() {
4714 let next_top_right = point(next_line.end_x, bottom_right.y);
4715
4716 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
4717 Ordering::Equal => {
4718 path.line_to(bottom_right);
4719 }
4720 Ordering::Less => {
4721 let curve_width = curve_width(next_top_right.x, bottom_right.x);
4722 path.line_to(bottom_right - curve_height);
4723 if self.corner_radius > Pixels::ZERO {
4724 path.curve_to(bottom_right - curve_width, bottom_right);
4725 }
4726 path.line_to(next_top_right + curve_width);
4727 if self.corner_radius > Pixels::ZERO {
4728 path.curve_to(next_top_right + curve_height, next_top_right);
4729 }
4730 }
4731 Ordering::Greater => {
4732 let curve_width = curve_width(bottom_right.x, next_top_right.x);
4733 path.line_to(bottom_right - curve_height);
4734 if self.corner_radius > Pixels::ZERO {
4735 path.curve_to(bottom_right + curve_width, bottom_right);
4736 }
4737 path.line_to(next_top_right - curve_width);
4738 if self.corner_radius > Pixels::ZERO {
4739 path.curve_to(next_top_right + curve_height, next_top_right);
4740 }
4741 }
4742 }
4743 } else {
4744 let curve_width = curve_width(line.start_x, line.end_x);
4745 path.line_to(bottom_right - curve_height);
4746 if self.corner_radius > Pixels::ZERO {
4747 path.curve_to(bottom_right - curve_width, bottom_right);
4748 }
4749
4750 let bottom_left = point(line.start_x, bottom_right.y);
4751 path.line_to(bottom_left + curve_width);
4752 if self.corner_radius > Pixels::ZERO {
4753 path.curve_to(bottom_left - curve_height, bottom_left);
4754 }
4755 }
4756 }
4757
4758 if first_line.start_x > last_line.start_x {
4759 let curve_width = curve_width(last_line.start_x, first_line.start_x);
4760 let second_top_left = point(last_line.start_x, start_y + self.line_height);
4761 path.line_to(second_top_left + curve_height);
4762 if self.corner_radius > Pixels::ZERO {
4763 path.curve_to(second_top_left + curve_width, second_top_left);
4764 }
4765 let first_bottom_left = point(first_line.start_x, second_top_left.y);
4766 path.line_to(first_bottom_left - curve_width);
4767 if self.corner_radius > Pixels::ZERO {
4768 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
4769 }
4770 }
4771
4772 path.line_to(first_top_left + curve_height);
4773 if self.corner_radius > Pixels::ZERO {
4774 path.curve_to(first_top_left + top_curve_width, first_top_left);
4775 }
4776 path.line_to(first_top_right - top_curve_width);
4777
4778 cx.paint_path(path, self.color);
4779 }
4780}
4781
4782pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4783 (delta.pow(1.5) / 100.0).into()
4784}
4785
4786fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4787 (delta.pow(1.2) / 300.0).into()
4788}
4789
4790#[cfg(test)]
4791mod tests {
4792 use super::*;
4793 use crate::{
4794 display_map::{BlockDisposition, BlockProperties},
4795 editor_tests::{init_test, update_test_language_settings},
4796 Editor, MultiBuffer,
4797 };
4798 use gpui::{TestAppContext, VisualTestContext};
4799 use language::language_settings;
4800 use log::info;
4801 use std::num::NonZeroU32;
4802 use ui::Context;
4803 use util::test::sample_text;
4804
4805 #[gpui::test]
4806 fn test_shape_line_numbers(cx: &mut TestAppContext) {
4807 init_test(cx, |_| {});
4808 let window = cx.add_window(|cx| {
4809 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
4810 Editor::new(EditorMode::Full, buffer, None, cx)
4811 });
4812
4813 let editor = window.root(cx).unwrap();
4814 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4815 let element = EditorElement::new(&editor, style);
4816 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
4817
4818 let layouts = cx
4819 .update_window(*window, |_, cx| {
4820 element
4821 .layout_line_numbers(
4822 0..6,
4823 (0..6).map(Some),
4824 &Default::default(),
4825 Some(DisplayPoint::new(0, 0)),
4826 &snapshot,
4827 cx,
4828 )
4829 .0
4830 })
4831 .unwrap();
4832 assert_eq!(layouts.len(), 6);
4833
4834 let relative_rows = window
4835 .update(cx, |editor, cx| {
4836 let snapshot = editor.snapshot(cx);
4837 element.calculate_relative_line_numbers(&snapshot, &(0..6), Some(3))
4838 })
4839 .unwrap();
4840 assert_eq!(relative_rows[&0], 3);
4841 assert_eq!(relative_rows[&1], 2);
4842 assert_eq!(relative_rows[&2], 1);
4843 // current line has no relative number
4844 assert_eq!(relative_rows[&4], 1);
4845 assert_eq!(relative_rows[&5], 2);
4846
4847 // works if cursor is before screen
4848 let relative_rows = window
4849 .update(cx, |editor, cx| {
4850 let snapshot = editor.snapshot(cx);
4851 element.calculate_relative_line_numbers(&snapshot, &(3..6), Some(1))
4852 })
4853 .unwrap();
4854 assert_eq!(relative_rows.len(), 3);
4855 assert_eq!(relative_rows[&3], 2);
4856 assert_eq!(relative_rows[&4], 3);
4857 assert_eq!(relative_rows[&5], 4);
4858
4859 // works if cursor is after screen
4860 let relative_rows = window
4861 .update(cx, |editor, cx| {
4862 let snapshot = editor.snapshot(cx);
4863 element.calculate_relative_line_numbers(&snapshot, &(0..3), Some(6))
4864 })
4865 .unwrap();
4866 assert_eq!(relative_rows.len(), 3);
4867 assert_eq!(relative_rows[&0], 5);
4868 assert_eq!(relative_rows[&1], 4);
4869 assert_eq!(relative_rows[&2], 3);
4870 }
4871
4872 #[gpui::test]
4873 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
4874 init_test(cx, |_| {});
4875
4876 let window = cx.add_window(|cx| {
4877 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
4878 Editor::new(EditorMode::Full, buffer, None, cx)
4879 });
4880 let cx = &mut VisualTestContext::from_window(*window, cx);
4881 let editor = window.root(cx).unwrap();
4882 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4883
4884 window
4885 .update(cx, |editor, cx| {
4886 editor.cursor_shape = CursorShape::Block;
4887 editor.change_selections(None, cx, |s| {
4888 s.select_ranges([
4889 Point::new(0, 0)..Point::new(1, 0),
4890 Point::new(3, 2)..Point::new(3, 3),
4891 Point::new(5, 6)..Point::new(6, 0),
4892 ]);
4893 });
4894 })
4895 .unwrap();
4896
4897 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
4898 EditorElement::new(&editor, style)
4899 });
4900
4901 assert_eq!(state.selections.len(), 1);
4902 let local_selections = &state.selections[0].1;
4903 assert_eq!(local_selections.len(), 3);
4904 // moves cursor back one line
4905 assert_eq!(local_selections[0].head, DisplayPoint::new(0, 6));
4906 assert_eq!(
4907 local_selections[0].range,
4908 DisplayPoint::new(0, 0)..DisplayPoint::new(1, 0)
4909 );
4910
4911 // moves cursor back one column
4912 assert_eq!(
4913 local_selections[1].range,
4914 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 3)
4915 );
4916 assert_eq!(local_selections[1].head, DisplayPoint::new(3, 2));
4917
4918 // leaves cursor on the max point
4919 assert_eq!(
4920 local_selections[2].range,
4921 DisplayPoint::new(5, 6)..DisplayPoint::new(6, 0)
4922 );
4923 assert_eq!(local_selections[2].head, DisplayPoint::new(6, 0));
4924
4925 // active lines does not include 1 (even though the range of the selection does)
4926 assert_eq!(
4927 state.active_rows.keys().cloned().collect::<Vec<u32>>(),
4928 vec![0, 3, 5, 6]
4929 );
4930
4931 // multi-buffer support
4932 // in DisplayPoint coordinates, this is what we're dealing with:
4933 // 0: [[file
4934 // 1: header]]
4935 // 2: aaaaaa
4936 // 3: bbbbbb
4937 // 4: cccccc
4938 // 5:
4939 // 6: ...
4940 // 7: ffffff
4941 // 8: gggggg
4942 // 9: hhhhhh
4943 // 10:
4944 // 11: [[file
4945 // 12: header]]
4946 // 13: bbbbbb
4947 // 14: cccccc
4948 // 15: dddddd
4949 let window = cx.add_window(|cx| {
4950 let buffer = MultiBuffer::build_multi(
4951 [
4952 (
4953 &(sample_text(8, 6, 'a') + "\n"),
4954 vec![
4955 Point::new(0, 0)..Point::new(3, 0),
4956 Point::new(4, 0)..Point::new(7, 0),
4957 ],
4958 ),
4959 (
4960 &(sample_text(8, 6, 'a') + "\n"),
4961 vec![Point::new(1, 0)..Point::new(3, 0)],
4962 ),
4963 ],
4964 cx,
4965 );
4966 Editor::new(EditorMode::Full, buffer, None, cx)
4967 });
4968 let editor = window.root(cx).unwrap();
4969 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4970 let _state = window.update(cx, |editor, cx| {
4971 editor.cursor_shape = CursorShape::Block;
4972 editor.change_selections(None, cx, |s| {
4973 s.select_display_ranges([
4974 DisplayPoint::new(4, 0)..DisplayPoint::new(7, 0),
4975 DisplayPoint::new(10, 0)..DisplayPoint::new(13, 0),
4976 ]);
4977 });
4978 });
4979
4980 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
4981 EditorElement::new(&editor, style)
4982 });
4983 assert_eq!(state.selections.len(), 1);
4984 let local_selections = &state.selections[0].1;
4985 assert_eq!(local_selections.len(), 2);
4986
4987 // moves cursor on excerpt boundary back a line
4988 // and doesn't allow selection to bleed through
4989 assert_eq!(
4990 local_selections[0].range,
4991 DisplayPoint::new(4, 0)..DisplayPoint::new(6, 0)
4992 );
4993 assert_eq!(local_selections[0].head, DisplayPoint::new(5, 0));
4994 // moves cursor on buffer boundary back two lines
4995 // and doesn't allow selection to bleed through
4996 assert_eq!(
4997 local_selections[1].range,
4998 DisplayPoint::new(10, 0)..DisplayPoint::new(11, 0)
4999 );
5000 assert_eq!(local_selections[1].head, DisplayPoint::new(10, 0));
5001 }
5002
5003 #[gpui::test]
5004 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
5005 init_test(cx, |_| {});
5006
5007 let window = cx.add_window(|cx| {
5008 let buffer = MultiBuffer::build_simple("", cx);
5009 Editor::new(EditorMode::Full, buffer, None, cx)
5010 });
5011 let cx = &mut VisualTestContext::from_window(*window, cx);
5012 let editor = window.root(cx).unwrap();
5013 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5014 window
5015 .update(cx, |editor, cx| {
5016 editor.set_placeholder_text("hello", cx);
5017 editor.insert_blocks(
5018 [BlockProperties {
5019 style: BlockStyle::Fixed,
5020 disposition: BlockDisposition::Above,
5021 height: 3,
5022 position: Anchor::min(),
5023 render: Box::new(|_| div().into_any()),
5024 }],
5025 None,
5026 cx,
5027 );
5028
5029 // Blur the editor so that it displays placeholder text.
5030 cx.blur();
5031 })
5032 .unwrap();
5033
5034 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5035 EditorElement::new(&editor, style)
5036 });
5037 assert_eq!(state.position_map.line_layouts.len(), 4);
5038 assert_eq!(
5039 state
5040 .line_numbers
5041 .iter()
5042 .map(Option::is_some)
5043 .collect::<Vec<_>>(),
5044 &[false, false, false, true]
5045 );
5046 }
5047
5048 #[gpui::test]
5049 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
5050 const TAB_SIZE: u32 = 4;
5051
5052 let input_text = "\t \t|\t| a b";
5053 let expected_invisibles = vec![
5054 Invisible::Tab {
5055 line_start_offset: 0,
5056 },
5057 Invisible::Whitespace {
5058 line_offset: TAB_SIZE as usize,
5059 },
5060 Invisible::Tab {
5061 line_start_offset: TAB_SIZE as usize + 1,
5062 },
5063 Invisible::Tab {
5064 line_start_offset: TAB_SIZE as usize * 2 + 1,
5065 },
5066 Invisible::Whitespace {
5067 line_offset: TAB_SIZE as usize * 3 + 1,
5068 },
5069 Invisible::Whitespace {
5070 line_offset: TAB_SIZE as usize * 3 + 3,
5071 },
5072 ];
5073 assert_eq!(
5074 expected_invisibles.len(),
5075 input_text
5076 .chars()
5077 .filter(|initial_char| initial_char.is_whitespace())
5078 .count(),
5079 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5080 );
5081
5082 init_test(cx, |s| {
5083 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5084 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
5085 });
5086
5087 let actual_invisibles =
5088 collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, px(500.0));
5089
5090 assert_eq!(expected_invisibles, actual_invisibles);
5091 }
5092
5093 #[gpui::test]
5094 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
5095 init_test(cx, |s| {
5096 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5097 s.defaults.tab_size = NonZeroU32::new(4);
5098 });
5099
5100 for editor_mode_without_invisibles in [
5101 EditorMode::SingleLine,
5102 EditorMode::AutoHeight { max_lines: 100 },
5103 ] {
5104 let invisibles = collect_invisibles_from_new_editor(
5105 cx,
5106 editor_mode_without_invisibles,
5107 "\t\t\t| | a b",
5108 px(500.0),
5109 );
5110 assert!(invisibles.is_empty(),
5111 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
5112 }
5113 }
5114
5115 #[gpui::test]
5116 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
5117 let tab_size = 4;
5118 let input_text = "a\tbcd ".repeat(9);
5119 let repeated_invisibles = [
5120 Invisible::Tab {
5121 line_start_offset: 1,
5122 },
5123 Invisible::Whitespace {
5124 line_offset: tab_size as usize + 3,
5125 },
5126 Invisible::Whitespace {
5127 line_offset: tab_size as usize + 4,
5128 },
5129 Invisible::Whitespace {
5130 line_offset: tab_size as usize + 5,
5131 },
5132 ];
5133 let expected_invisibles = std::iter::once(repeated_invisibles)
5134 .cycle()
5135 .take(9)
5136 .flatten()
5137 .collect::<Vec<_>>();
5138 assert_eq!(
5139 expected_invisibles.len(),
5140 input_text
5141 .chars()
5142 .filter(|initial_char| initial_char.is_whitespace())
5143 .count(),
5144 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5145 );
5146 info!("Expected invisibles: {expected_invisibles:?}");
5147
5148 init_test(cx, |_| {});
5149
5150 // Put the same string with repeating whitespace pattern into editors of various size,
5151 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
5152 let resize_step = 10.0;
5153 let mut editor_width = 200.0;
5154 while editor_width <= 1000.0 {
5155 update_test_language_settings(cx, |s| {
5156 s.defaults.tab_size = NonZeroU32::new(tab_size);
5157 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5158 s.defaults.preferred_line_length = Some(editor_width as u32);
5159 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
5160 });
5161
5162 let actual_invisibles = collect_invisibles_from_new_editor(
5163 cx,
5164 EditorMode::Full,
5165 &input_text,
5166 px(editor_width),
5167 );
5168
5169 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
5170 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
5171 let mut i = 0;
5172 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
5173 i = actual_index;
5174 match expected_invisibles.get(i) {
5175 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
5176 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
5177 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
5178 _ => {
5179 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
5180 }
5181 },
5182 None => panic!("Unexpected extra invisible {actual_invisible:?} at index {i}"),
5183 }
5184 }
5185 let missing_expected_invisibles = &expected_invisibles[i + 1..];
5186 assert!(
5187 missing_expected_invisibles.is_empty(),
5188 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
5189 );
5190
5191 editor_width += resize_step;
5192 }
5193 }
5194
5195 fn collect_invisibles_from_new_editor(
5196 cx: &mut TestAppContext,
5197 editor_mode: EditorMode,
5198 input_text: &str,
5199 editor_width: Pixels,
5200 ) -> Vec<Invisible> {
5201 info!(
5202 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
5203 editor_width.0
5204 );
5205 let window = cx.add_window(|cx| {
5206 let buffer = MultiBuffer::build_simple(&input_text, cx);
5207 Editor::new(editor_mode, buffer, None, cx)
5208 });
5209 let cx = &mut VisualTestContext::from_window(*window, cx);
5210 let editor = window.root(cx).unwrap();
5211 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5212 window
5213 .update(cx, |editor, cx| {
5214 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
5215 editor.set_wrap_width(Some(editor_width), cx);
5216 })
5217 .unwrap();
5218 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5219 EditorElement::new(&editor, style)
5220 });
5221 state
5222 .position_map
5223 .line_layouts
5224 .iter()
5225 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
5226 .cloned()
5227 .collect()
5228 }
5229}
5230
5231pub fn register_action<T: Action>(
5232 view: &View<Editor>,
5233 cx: &mut WindowContext,
5234 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
5235) {
5236 let view = view.clone();
5237 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
5238 let action = action.downcast_ref().unwrap();
5239 if phase == DispatchPhase::Bubble {
5240 view.update(cx, |editor, cx| {
5241 listener(editor, action, cx);
5242 })
5243 }
5244 })
5245}
5246
5247fn compute_auto_height_layout(
5248 editor: &mut Editor,
5249 max_lines: usize,
5250 max_line_number_width: Pixels,
5251 known_dimensions: Size<Option<Pixels>>,
5252 cx: &mut ViewContext<Editor>,
5253) -> Option<Size<Pixels>> {
5254 let width = known_dimensions.width?;
5255 if let Some(height) = known_dimensions.height {
5256 return Some(size(width, height));
5257 }
5258
5259 let style = editor.style.as_ref().unwrap();
5260 let font_id = cx.text_system().resolve_font(&style.text.font());
5261 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5262 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5263 let em_width = cx
5264 .text_system()
5265 .typographic_bounds(font_id, font_size, 'm')
5266 .unwrap()
5267 .size
5268 .width;
5269
5270 let mut snapshot = editor.snapshot(cx);
5271 let gutter_dimensions =
5272 snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
5273
5274 editor.gutter_dimensions = gutter_dimensions;
5275 let text_width = width - gutter_dimensions.width;
5276 let overscroll = size(em_width, px(0.));
5277
5278 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
5279 if editor.set_wrap_width(Some(editor_width), cx) {
5280 snapshot = editor.snapshot(cx);
5281 }
5282
5283 let scroll_height = Pixels::from(snapshot.max_point().row() + 1) * line_height;
5284 let height = scroll_height
5285 .max(line_height)
5286 .min(line_height * max_lines as f32);
5287
5288 Some(size(width, height))
5289}