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::{
9 blame::{CommitDetails, GitBlame},
10 diff_hunk_to_display, DisplayDiffHunk,
11 },
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 hunk_status,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MouseContextMenu},
18 scroll::scroll_amount::ScrollAmount,
19 CodeActionsMenu, CursorShape, DisplayPoint, DisplayRow, DocumentHighlightRead,
20 DocumentHighlightWrite, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
21 ExpandExcerpts, GutterDimensions, HalfPageDown, HalfPageUp, HoveredCursor, HunkToExpand,
22 LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase,
23 Selection, SoftWrap, ToPoint, CURSORS_VISIBLE_FOR, MAX_LINE_LEN,
24};
25use anyhow::Result;
26use client::ParticipantIndex;
27use collections::{BTreeMap, HashMap, HashSet};
28use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
29use gpui::{
30 anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
31 transparent_black, Action, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClipboardItem,
32 ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
33 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, ModifiersChangedEvent,
34 MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels,
35 ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size, Stateful,
36 StatefulInteractiveElement, Style, Styled, TextRun, TextStyle, TextStyleRefinement, View,
37 ViewContext, WeakView, WindowContext,
38};
39use itertools::Itertools;
40use language::language_settings::ShowWhitespaceSetting;
41use lsp::DiagnosticSeverity;
42use multi_buffer::{Anchor, MultiBufferPoint, MultiBufferRow};
43use project::{
44 project_settings::{GitGutterSetting, ProjectSettings},
45 ProjectPath,
46};
47use settings::Settings;
48use smallvec::SmallVec;
49use std::{
50 any::TypeId,
51 borrow::Cow,
52 cmp::{self, max, Ordering},
53 fmt::Write,
54 iter, mem,
55 ops::{Deref, Range},
56 sync::Arc,
57};
58use sum_tree::Bias;
59use theme::{ActiveTheme, PlayerColor};
60use ui::prelude::*;
61use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
62use util::ResultExt;
63use workspace::{item::Item, Workspace};
64
65struct SelectionLayout {
66 head: DisplayPoint,
67 cursor_shape: CursorShape,
68 is_newest: bool,
69 is_local: bool,
70 range: Range<DisplayPoint>,
71 active_rows: Range<DisplayRow>,
72 user_name: Option<SharedString>,
73}
74
75impl SelectionLayout {
76 fn new<T: ToPoint + ToDisplayPoint + Clone>(
77 selection: Selection<T>,
78 line_mode: bool,
79 cursor_shape: CursorShape,
80 map: &DisplaySnapshot,
81 is_newest: bool,
82 is_local: bool,
83 user_name: Option<SharedString>,
84 ) -> Self {
85 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
86 let display_selection = point_selection.map(|p| p.to_display_point(map));
87 let mut range = display_selection.range();
88 let mut head = display_selection.head();
89 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
90 ..map.next_line_boundary(point_selection.end).1.row();
91
92 // vim visual line mode
93 if line_mode {
94 let point_range = map.expand_to_line(point_selection.range());
95 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
96 }
97
98 // any vim visual mode (including line mode)
99 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
100 && !range.is_empty()
101 && !selection.reversed
102 {
103 if head.column() > 0 {
104 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
105 } else if head.row().0 > 0 && head != map.max_point() {
106 head = map.clip_point(
107 DisplayPoint::new(
108 head.row().previous_row(),
109 map.line_len(head.row().previous_row()),
110 ),
111 Bias::Left,
112 );
113 // updating range.end is a no-op unless you're cursor is
114 // on the newline containing a multi-buffer divider
115 // in which case the clip_point may have moved the head up
116 // an additional row.
117 range.end = DisplayPoint::new(head.row().next_row(), 0);
118 active_rows.end = head.row();
119 }
120 }
121
122 Self {
123 head,
124 cursor_shape,
125 is_newest,
126 is_local,
127 range,
128 active_rows,
129 user_name,
130 }
131 }
132}
133
134pub struct EditorElement {
135 editor: View<Editor>,
136 style: EditorStyle,
137}
138
139type DisplayRowDelta = u32;
140
141impl EditorElement {
142 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(13.);
143
144 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
145 Self {
146 editor: editor.clone(),
147 style,
148 }
149 }
150
151 fn register_actions(&self, cx: &mut WindowContext) {
152 let view = &self.editor;
153 view.update(cx, |editor, cx| {
154 for action in editor.editor_actions.iter() {
155 (action)(cx)
156 }
157 });
158
159 crate::rust_analyzer_ext::apply_related_actions(view, cx);
160 register_action(view, cx, Editor::move_left);
161 register_action(view, cx, Editor::move_right);
162 register_action(view, cx, Editor::move_down);
163 register_action(view, cx, Editor::move_down_by_lines);
164 register_action(view, cx, Editor::select_down_by_lines);
165 register_action(view, cx, Editor::move_up);
166 register_action(view, cx, Editor::move_up_by_lines);
167 register_action(view, cx, Editor::select_up_by_lines);
168 register_action(view, cx, Editor::cancel);
169 register_action(view, cx, Editor::newline);
170 register_action(view, cx, Editor::newline_above);
171 register_action(view, cx, Editor::newline_below);
172 register_action(view, cx, Editor::backspace);
173 register_action(view, cx, Editor::delete);
174 register_action(view, cx, Editor::tab);
175 register_action(view, cx, Editor::tab_prev);
176 register_action(view, cx, Editor::indent);
177 register_action(view, cx, Editor::outdent);
178 register_action(view, cx, Editor::delete_line);
179 register_action(view, cx, Editor::join_lines);
180 register_action(view, cx, Editor::sort_lines_case_sensitive);
181 register_action(view, cx, Editor::sort_lines_case_insensitive);
182 register_action(view, cx, Editor::reverse_lines);
183 register_action(view, cx, Editor::shuffle_lines);
184 register_action(view, cx, Editor::convert_to_upper_case);
185 register_action(view, cx, Editor::convert_to_lower_case);
186 register_action(view, cx, Editor::convert_to_title_case);
187 register_action(view, cx, Editor::convert_to_snake_case);
188 register_action(view, cx, Editor::convert_to_kebab_case);
189 register_action(view, cx, Editor::convert_to_upper_camel_case);
190 register_action(view, cx, Editor::convert_to_lower_camel_case);
191 register_action(view, cx, Editor::convert_to_opposite_case);
192 register_action(view, cx, Editor::delete_to_previous_word_start);
193 register_action(view, cx, Editor::delete_to_previous_subword_start);
194 register_action(view, cx, Editor::delete_to_next_word_end);
195 register_action(view, cx, Editor::delete_to_next_subword_end);
196 register_action(view, cx, Editor::delete_to_beginning_of_line);
197 register_action(view, cx, Editor::delete_to_end_of_line);
198 register_action(view, cx, Editor::cut_to_end_of_line);
199 register_action(view, cx, Editor::duplicate_line_up);
200 register_action(view, cx, Editor::duplicate_line_down);
201 register_action(view, cx, Editor::move_line_up);
202 register_action(view, cx, Editor::move_line_down);
203 register_action(view, cx, Editor::transpose);
204 register_action(view, cx, Editor::cut);
205 register_action(view, cx, Editor::copy);
206 register_action(view, cx, Editor::paste);
207 register_action(view, cx, Editor::undo);
208 register_action(view, cx, Editor::redo);
209 register_action(view, cx, Editor::move_page_up);
210 register_action(view, cx, Editor::move_page_down);
211 register_action(view, cx, Editor::next_screen);
212 register_action(view, cx, Editor::scroll_cursor_top);
213 register_action(view, cx, Editor::scroll_cursor_center);
214 register_action(view, cx, Editor::scroll_cursor_bottom);
215 register_action(view, cx, |editor, _: &LineDown, cx| {
216 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
217 });
218 register_action(view, cx, |editor, _: &LineUp, cx| {
219 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
220 });
221 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
222 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
223 });
224 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
225 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
226 });
227 register_action(view, cx, |editor, _: &PageDown, cx| {
228 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
229 });
230 register_action(view, cx, |editor, _: &PageUp, cx| {
231 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
232 });
233 register_action(view, cx, Editor::move_to_previous_word_start);
234 register_action(view, cx, Editor::move_to_previous_subword_start);
235 register_action(view, cx, Editor::move_to_next_word_end);
236 register_action(view, cx, Editor::move_to_next_subword_end);
237 register_action(view, cx, Editor::move_to_beginning_of_line);
238 register_action(view, cx, Editor::move_to_end_of_line);
239 register_action(view, cx, Editor::move_to_start_of_paragraph);
240 register_action(view, cx, Editor::move_to_end_of_paragraph);
241 register_action(view, cx, Editor::move_to_beginning);
242 register_action(view, cx, Editor::move_to_end);
243 register_action(view, cx, Editor::select_up);
244 register_action(view, cx, Editor::select_down);
245 register_action(view, cx, Editor::select_left);
246 register_action(view, cx, Editor::select_right);
247 register_action(view, cx, Editor::select_to_previous_word_start);
248 register_action(view, cx, Editor::select_to_previous_subword_start);
249 register_action(view, cx, Editor::select_to_next_word_end);
250 register_action(view, cx, Editor::select_to_next_subword_end);
251 register_action(view, cx, Editor::select_to_beginning_of_line);
252 register_action(view, cx, Editor::select_to_end_of_line);
253 register_action(view, cx, Editor::select_to_start_of_paragraph);
254 register_action(view, cx, Editor::select_to_end_of_paragraph);
255 register_action(view, cx, Editor::select_to_beginning);
256 register_action(view, cx, Editor::select_to_end);
257 register_action(view, cx, Editor::select_all);
258 register_action(view, cx, |editor, action, cx| {
259 editor.select_all_matches(action, cx).log_err();
260 });
261 register_action(view, cx, Editor::select_line);
262 register_action(view, cx, Editor::split_selection_into_lines);
263 register_action(view, cx, Editor::add_selection_above);
264 register_action(view, cx, Editor::add_selection_below);
265 register_action(view, cx, |editor, action, cx| {
266 editor.select_next(action, cx).log_err();
267 });
268 register_action(view, cx, |editor, action, cx| {
269 editor.select_previous(action, cx).log_err();
270 });
271 register_action(view, cx, Editor::toggle_comments);
272 register_action(view, cx, Editor::select_larger_syntax_node);
273 register_action(view, cx, Editor::select_smaller_syntax_node);
274 register_action(view, cx, Editor::move_to_enclosing_bracket);
275 register_action(view, cx, Editor::undo_selection);
276 register_action(view, cx, Editor::redo_selection);
277 if !view.read(cx).is_singleton(cx) {
278 register_action(view, cx, Editor::expand_excerpts);
279 }
280 register_action(view, cx, Editor::go_to_diagnostic);
281 register_action(view, cx, Editor::go_to_prev_diagnostic);
282 register_action(view, cx, Editor::go_to_hunk);
283 register_action(view, cx, Editor::go_to_prev_hunk);
284 register_action(view, cx, |editor, a, cx| {
285 editor.go_to_definition(a, cx).detach_and_log_err(cx);
286 });
287 register_action(view, cx, |editor, a, cx| {
288 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
289 });
290 register_action(view, cx, |editor, a, cx| {
291 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
292 });
293 register_action(view, cx, |editor, a, cx| {
294 editor
295 .go_to_implementation_split(a, cx)
296 .detach_and_log_err(cx);
297 });
298 register_action(view, cx, |editor, a, cx| {
299 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
300 });
301 register_action(view, cx, |editor, a, cx| {
302 editor
303 .go_to_type_definition_split(a, cx)
304 .detach_and_log_err(cx);
305 });
306 register_action(view, cx, Editor::open_url);
307 register_action(view, cx, Editor::fold);
308 register_action(view, cx, Editor::fold_at);
309 register_action(view, cx, Editor::unfold_lines);
310 register_action(view, cx, Editor::unfold_at);
311 register_action(view, cx, Editor::fold_selected_ranges);
312 register_action(view, cx, Editor::show_completions);
313 register_action(view, cx, Editor::toggle_code_actions);
314 register_action(view, cx, Editor::open_excerpts);
315 register_action(view, cx, Editor::open_excerpts_in_split);
316 register_action(view, cx, Editor::toggle_soft_wrap);
317 register_action(view, cx, Editor::toggle_line_numbers);
318 register_action(view, cx, Editor::toggle_inlay_hints);
319 register_action(view, cx, hover_popover::hover);
320 register_action(view, cx, Editor::reveal_in_finder);
321 register_action(view, cx, Editor::copy_path);
322 register_action(view, cx, Editor::copy_relative_path);
323 register_action(view, cx, Editor::copy_highlight_json);
324 register_action(view, cx, Editor::copy_permalink_to_line);
325 register_action(view, cx, Editor::open_permalink_to_line);
326 register_action(view, cx, Editor::toggle_git_blame);
327 register_action(view, cx, Editor::toggle_git_blame_inline);
328 register_action(view, cx, Editor::toggle_hunk_diff);
329 register_action(view, cx, Editor::expand_all_hunk_diffs);
330 register_action(view, cx, |editor, action, cx| {
331 if let Some(task) = editor.format(action, cx) {
332 task.detach_and_log_err(cx);
333 } else {
334 cx.propagate();
335 }
336 });
337 register_action(view, cx, Editor::restart_language_server);
338 register_action(view, cx, Editor::show_character_palette);
339 register_action(view, cx, |editor, action, cx| {
340 if let Some(task) = editor.confirm_completion(action, cx) {
341 task.detach_and_log_err(cx);
342 } else {
343 cx.propagate();
344 }
345 });
346 register_action(view, cx, |editor, action, cx| {
347 if let Some(task) = editor.confirm_code_action(action, cx) {
348 task.detach_and_log_err(cx);
349 } else {
350 cx.propagate();
351 }
352 });
353 register_action(view, cx, |editor, action, cx| {
354 if let Some(task) = editor.rename(action, cx) {
355 task.detach_and_log_err(cx);
356 } else {
357 cx.propagate();
358 }
359 });
360 register_action(view, cx, |editor, action, cx| {
361 if let Some(task) = editor.confirm_rename(action, cx) {
362 task.detach_and_log_err(cx);
363 } else {
364 cx.propagate();
365 }
366 });
367 register_action(view, cx, |editor, action, cx| {
368 if let Some(task) = editor.find_all_references(action, cx) {
369 task.detach_and_log_err(cx);
370 } else {
371 cx.propagate();
372 }
373 });
374 register_action(view, cx, Editor::next_inline_completion);
375 register_action(view, cx, Editor::previous_inline_completion);
376 register_action(view, cx, Editor::show_inline_completion);
377 register_action(view, cx, Editor::context_menu_first);
378 register_action(view, cx, Editor::context_menu_prev);
379 register_action(view, cx, Editor::context_menu_next);
380 register_action(view, cx, Editor::context_menu_last);
381 register_action(view, cx, Editor::display_cursor_names);
382 register_action(view, cx, Editor::unique_lines_case_insensitive);
383 register_action(view, cx, Editor::unique_lines_case_sensitive);
384 register_action(view, cx, Editor::accept_partial_inline_completion);
385 register_action(view, cx, Editor::revert_selected_hunks);
386 register_action(view, cx, Editor::open_active_item_in_terminal)
387 }
388
389 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
390 let position_map = layout.position_map.clone();
391 cx.on_key_event({
392 let editor = self.editor.clone();
393 let text_hitbox = layout.text_hitbox.clone();
394 move |event: &ModifiersChangedEvent, phase, cx| {
395 if phase != DispatchPhase::Bubble {
396 return;
397 }
398
399 editor.update(cx, |editor, cx| {
400 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
401 })
402 }
403 });
404 }
405
406 fn modifiers_changed(
407 editor: &mut Editor,
408 event: &ModifiersChangedEvent,
409 position_map: &PositionMap,
410 text_hitbox: &Hitbox,
411 cx: &mut ViewContext<Editor>,
412 ) {
413 let mouse_position = cx.mouse_position();
414 if !text_hitbox.is_hovered(cx) {
415 return;
416 }
417
418 editor.update_hovered_link(
419 position_map.point_for_position(text_hitbox.bounds, mouse_position),
420 &position_map.snapshot,
421 event.modifiers,
422 cx,
423 )
424 }
425
426 fn mouse_left_down(
427 editor: &mut Editor,
428 event: &MouseDownEvent,
429 hovered_hunk: Option<&HunkToExpand>,
430 position_map: &PositionMap,
431 text_hitbox: &Hitbox,
432 gutter_hitbox: &Hitbox,
433 cx: &mut ViewContext<Editor>,
434 ) {
435 if cx.default_prevented() {
436 return;
437 }
438
439 let mut click_count = event.click_count;
440 let mut modifiers = event.modifiers;
441
442 if let Some(hovered_hunk) = hovered_hunk {
443 editor.expand_diff_hunk(None, hovered_hunk, cx);
444 cx.notify();
445 return;
446 } else if gutter_hitbox.is_hovered(cx) {
447 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
448 } else if !text_hitbox.is_hovered(cx) {
449 return;
450 }
451
452 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
453 match EditorSettings::get_global(cx).double_click_in_multibuffer {
454 DoubleClickInMultibuffer::Select => {
455 // do nothing special on double click, all selection logic is below
456 }
457 DoubleClickInMultibuffer::Open => {
458 if modifiers.alt {
459 // if double click is made with alt, pretend it's a regular double click without opening and alt,
460 // and run the selection logic.
461 modifiers.alt = false;
462 } else {
463 // if double click is made without alt, open the corresponding excerp
464 editor.open_excerpts(&OpenExcerpts, cx);
465 return;
466 }
467 }
468 }
469 }
470
471 let point_for_position =
472 position_map.point_for_position(text_hitbox.bounds, event.position);
473 let position = point_for_position.previous_valid;
474 if modifiers.shift && modifiers.alt {
475 editor.select(
476 SelectPhase::BeginColumnar {
477 position,
478 goal_column: point_for_position.exact_unclipped.column(),
479 },
480 cx,
481 );
482 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
483 {
484 editor.select(
485 SelectPhase::Extend {
486 position,
487 click_count,
488 },
489 cx,
490 );
491 } else {
492 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
493 let multi_cursor_modifier = match multi_cursor_setting {
494 MultiCursorModifier::Alt => modifiers.alt,
495 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
496 };
497 editor.select(
498 SelectPhase::Begin {
499 position,
500 add: multi_cursor_modifier,
501 click_count,
502 },
503 cx,
504 );
505 }
506
507 cx.stop_propagation();
508 }
509
510 fn mouse_right_down(
511 editor: &mut Editor,
512 event: &MouseDownEvent,
513 position_map: &PositionMap,
514 text_hitbox: &Hitbox,
515 cx: &mut ViewContext<Editor>,
516 ) {
517 if !text_hitbox.is_hovered(cx) {
518 return;
519 }
520 let point_for_position =
521 position_map.point_for_position(text_hitbox.bounds, event.position);
522 mouse_context_menu::deploy_context_menu(
523 editor,
524 event.position,
525 point_for_position.previous_valid,
526 cx,
527 );
528 cx.stop_propagation();
529 }
530
531 fn mouse_middle_down(
532 editor: &mut Editor,
533 event: &MouseDownEvent,
534 position_map: &PositionMap,
535 text_hitbox: &Hitbox,
536 cx: &mut ViewContext<Editor>,
537 ) {
538 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
539 return;
540 }
541
542 if let Some(item) = cx.read_from_primary() {
543 let point_for_position =
544 position_map.point_for_position(text_hitbox.bounds, event.position);
545 let position = point_for_position.previous_valid;
546
547 editor.select(
548 SelectPhase::Begin {
549 position,
550 add: false,
551 click_count: 1,
552 },
553 cx,
554 );
555 editor.insert(item.text(), cx);
556 }
557 }
558
559 fn mouse_up(
560 editor: &mut Editor,
561 event: &MouseUpEvent,
562 position_map: &PositionMap,
563 text_hitbox: &Hitbox,
564 cx: &mut ViewContext<Editor>,
565 ) {
566 let end_selection = editor.has_pending_selection();
567 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
568
569 if end_selection {
570 editor.select(SelectPhase::End, cx);
571 }
572
573 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
574 let multi_cursor_modifier = match multi_cursor_setting {
575 MultiCursorModifier::Alt => event.modifiers.secondary(),
576 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
577 };
578
579 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
580 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
581 editor.handle_click_hovered_link(point, event.modifiers, cx);
582
583 cx.stop_propagation();
584 } else if end_selection {
585 cx.stop_propagation();
586 }
587 }
588
589 fn mouse_dragged(
590 editor: &mut Editor,
591 event: &MouseMoveEvent,
592 position_map: &PositionMap,
593 text_bounds: Bounds<Pixels>,
594 cx: &mut ViewContext<Editor>,
595 ) {
596 if !editor.has_pending_selection() {
597 return;
598 }
599
600 let point_for_position = position_map.point_for_position(text_bounds, event.position);
601 let mut scroll_delta = gpui::Point::<f32>::default();
602 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
603 let top = text_bounds.origin.y + vertical_margin;
604 let bottom = text_bounds.lower_left().y - vertical_margin;
605 if event.position.y < top {
606 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
607 }
608 if event.position.y > bottom {
609 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
610 }
611
612 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
613 let left = text_bounds.origin.x + horizontal_margin;
614 let right = text_bounds.upper_right().x - horizontal_margin;
615 if event.position.x < left {
616 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
617 }
618 if event.position.x > right {
619 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
620 }
621
622 editor.select(
623 SelectPhase::Update {
624 position: point_for_position.previous_valid,
625 goal_column: point_for_position.exact_unclipped.column(),
626 scroll_delta,
627 },
628 cx,
629 );
630 }
631
632 fn mouse_moved(
633 editor: &mut Editor,
634 event: &MouseMoveEvent,
635 position_map: &PositionMap,
636 text_hitbox: &Hitbox,
637 gutter_hitbox: &Hitbox,
638 cx: &mut ViewContext<Editor>,
639 ) {
640 let modifiers = event.modifiers;
641 let gutter_hovered = gutter_hitbox.is_hovered(cx);
642 editor.set_gutter_hovered(gutter_hovered, cx);
643
644 // Don't trigger hover popover if mouse is hovering over context menu
645 if text_hitbox.is_hovered(cx) {
646 let point_for_position =
647 position_map.point_for_position(text_hitbox.bounds, event.position);
648
649 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
650
651 if let Some(point) = point_for_position.as_valid() {
652 let anchor = position_map
653 .snapshot
654 .buffer_snapshot
655 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
656 hover_at(editor, Some(anchor), cx);
657 Self::update_visible_cursor(editor, point, position_map, cx);
658 } else {
659 hover_at(editor, None, cx);
660 }
661 } else {
662 editor.hide_hovered_link(cx);
663 hover_at(editor, None, cx);
664 if gutter_hovered {
665 cx.stop_propagation();
666 }
667 }
668 }
669
670 fn update_visible_cursor(
671 editor: &mut Editor,
672 point: DisplayPoint,
673 position_map: &PositionMap,
674 cx: &mut ViewContext<Editor>,
675 ) {
676 let snapshot = &position_map.snapshot;
677 let Some(hub) = editor.collaboration_hub() else {
678 return;
679 };
680 let range = DisplayPoint::new(point.row(), point.column().saturating_sub(1))
681 ..DisplayPoint::new(
682 point.row(),
683 (point.column() + 1).min(snapshot.line_len(point.row())),
684 );
685
686 let range = snapshot
687 .buffer_snapshot
688 .anchor_at(range.start.to_point(&snapshot.display_snapshot), Bias::Left)
689 ..snapshot
690 .buffer_snapshot
691 .anchor_at(range.end.to_point(&snapshot.display_snapshot), Bias::Right);
692
693 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
694 return;
695 };
696 let key = crate::HoveredCursor {
697 replica_id: selection.replica_id,
698 selection_id: selection.selection.id,
699 };
700 editor.hovered_cursors.insert(
701 key.clone(),
702 cx.spawn(|editor, mut cx| async move {
703 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
704 editor
705 .update(&mut cx, |editor, cx| {
706 editor.hovered_cursors.remove(&key);
707 cx.notify();
708 })
709 .ok();
710 }),
711 );
712 cx.notify()
713 }
714
715 fn layout_selections(
716 &self,
717 start_anchor: Anchor,
718 end_anchor: Anchor,
719 snapshot: &EditorSnapshot,
720 start_row: DisplayRow,
721 end_row: DisplayRow,
722 cx: &mut WindowContext,
723 ) -> (
724 Vec<(PlayerColor, Vec<SelectionLayout>)>,
725 BTreeMap<DisplayRow, bool>,
726 Option<DisplayPoint>,
727 ) {
728 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
729 let mut active_rows = BTreeMap::new();
730 let mut newest_selection_head = None;
731 let editor = self.editor.read(cx);
732
733 if editor.show_local_selections {
734 let mut local_selections: Vec<Selection<Point>> = editor
735 .selections
736 .disjoint_in_range(start_anchor..end_anchor, cx);
737 local_selections.extend(editor.selections.pending(cx));
738 let mut layouts = Vec::new();
739 let newest = editor.selections.newest(cx);
740 for selection in local_selections.drain(..) {
741 let is_empty = selection.start == selection.end;
742 let is_newest = selection == newest;
743
744 let layout = SelectionLayout::new(
745 selection,
746 editor.selections.line_mode,
747 editor.cursor_shape,
748 &snapshot.display_snapshot,
749 is_newest,
750 editor.leader_peer_id.is_none(),
751 None,
752 );
753 if is_newest {
754 newest_selection_head = Some(layout.head);
755 }
756
757 for row in cmp::max(layout.active_rows.start.0, start_row.0)
758 ..=cmp::min(layout.active_rows.end.0, end_row.0)
759 {
760 let contains_non_empty_selection =
761 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
762 *contains_non_empty_selection |= !is_empty;
763 }
764 layouts.push(layout);
765 }
766
767 let player = if editor.read_only(cx) {
768 cx.theme().players().read_only()
769 } else {
770 self.style.local_player
771 };
772
773 selections.push((player, layouts));
774 }
775
776 if let Some(collaboration_hub) = &editor.collaboration_hub {
777 // When following someone, render the local selections in their color.
778 if let Some(leader_id) = editor.leader_peer_id {
779 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
780 if let Some(participant_index) = collaboration_hub
781 .user_participant_indices(cx)
782 .get(&collaborator.user_id)
783 {
784 if let Some((local_selection_style, _)) = selections.first_mut() {
785 *local_selection_style = cx
786 .theme()
787 .players()
788 .color_for_participant(participant_index.0);
789 }
790 }
791 }
792 }
793
794 let mut remote_selections = HashMap::default();
795 for selection in snapshot.remote_selections_in_range(
796 &(start_anchor..end_anchor),
797 collaboration_hub.as_ref(),
798 cx,
799 ) {
800 let selection_style = Self::get_participant_color(selection.participant_index, cx);
801
802 // Don't re-render the leader's selections, since the local selections
803 // match theirs.
804 if Some(selection.peer_id) == editor.leader_peer_id {
805 continue;
806 }
807 let key = HoveredCursor {
808 replica_id: selection.replica_id,
809 selection_id: selection.selection.id,
810 };
811
812 let is_shown =
813 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
814
815 remote_selections
816 .entry(selection.replica_id)
817 .or_insert((selection_style, Vec::new()))
818 .1
819 .push(SelectionLayout::new(
820 selection.selection,
821 selection.line_mode,
822 selection.cursor_shape,
823 &snapshot.display_snapshot,
824 false,
825 false,
826 if is_shown { selection.user_name } else { None },
827 ));
828 }
829
830 selections.extend(remote_selections.into_values());
831 }
832 (selections, active_rows, newest_selection_head)
833 }
834
835 #[allow(clippy::too_many_arguments)]
836 fn layout_folds(
837 &self,
838 snapshot: &EditorSnapshot,
839 content_origin: gpui::Point<Pixels>,
840 visible_anchor_range: Range<Anchor>,
841 visible_display_row_range: Range<DisplayRow>,
842 scroll_pixel_position: gpui::Point<Pixels>,
843 line_height: Pixels,
844 line_layouts: &[LineWithInvisibles],
845 cx: &mut WindowContext,
846 ) -> Vec<FoldLayout> {
847 snapshot
848 .folds_in_range(visible_anchor_range.clone())
849 .filter_map(|fold| {
850 let fold_range = fold.range.clone();
851 let display_range = fold.range.start.to_display_point(&snapshot)
852 ..fold.range.end.to_display_point(&snapshot);
853 debug_assert_eq!(display_range.start.row(), display_range.end.row());
854 let row = display_range.start.row();
855 debug_assert!(row < visible_display_row_range.end);
856 let line_layout = line_layouts
857 .get(row.minus(visible_display_row_range.start) as usize)
858 .map(|l| &l.line)?;
859
860 let start_x = content_origin.x
861 + line_layout.x_for_index(display_range.start.column() as usize)
862 - scroll_pixel_position.x;
863 let start_y =
864 content_origin.y + row.as_f32() * line_height - scroll_pixel_position.y;
865 let end_x = content_origin.x
866 + line_layout.x_for_index(display_range.end.column() as usize)
867 - scroll_pixel_position.x;
868
869 let fold_bounds = Bounds {
870 origin: point(start_x, start_y),
871 size: size(end_x - start_x, line_height),
872 };
873
874 let mut hover_element = div()
875 .id(fold.id)
876 .size_full()
877 .cursor_pointer()
878 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
879 .on_click(
880 cx.listener_for(&self.editor, move |editor: &mut Editor, _, cx| {
881 editor.unfold_ranges(
882 [fold_range.start..fold_range.end],
883 true,
884 false,
885 cx,
886 );
887 cx.stop_propagation();
888 }),
889 )
890 .into_any();
891 hover_element.prepaint_as_root(fold_bounds.origin, fold_bounds.size.into(), cx);
892 Some(FoldLayout {
893 display_range,
894 hover_element,
895 })
896 })
897 .collect()
898 }
899
900 fn collect_cursors(
901 &self,
902 snapshot: &EditorSnapshot,
903 cx: &mut WindowContext,
904 ) -> Vec<(DisplayPoint, Hsla)> {
905 let editor = self.editor.read(cx);
906 let mut cursors = Vec::new();
907 let mut skip_local = false;
908 let mut add_cursor = |anchor: Anchor, color| {
909 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
910 };
911 // Remote cursors
912 if let Some(collaboration_hub) = &editor.collaboration_hub {
913 for remote_selection in snapshot.remote_selections_in_range(
914 &(Anchor::min()..Anchor::max()),
915 collaboration_hub.deref(),
916 cx,
917 ) {
918 let color = Self::get_participant_color(remote_selection.participant_index, cx);
919 add_cursor(remote_selection.selection.head(), color.cursor);
920 if Some(remote_selection.peer_id) == editor.leader_peer_id {
921 skip_local = true;
922 }
923 }
924 }
925 // Local cursors
926 if !skip_local {
927 let color = cx.theme().players().local().cursor;
928 editor.selections.disjoint.iter().for_each(|selection| {
929 add_cursor(selection.head(), color);
930 });
931 if let Some(ref selection) = editor.selections.pending_anchor() {
932 add_cursor(selection.head(), color);
933 }
934 }
935 cursors
936 }
937
938 #[allow(clippy::too_many_arguments)]
939 fn layout_visible_cursors(
940 &self,
941 snapshot: &EditorSnapshot,
942 selections: &[(PlayerColor, Vec<SelectionLayout>)],
943 visible_display_row_range: Range<DisplayRow>,
944 line_layouts: &[LineWithInvisibles],
945 text_hitbox: &Hitbox,
946 content_origin: gpui::Point<Pixels>,
947 scroll_position: gpui::Point<f32>,
948 scroll_pixel_position: gpui::Point<Pixels>,
949 line_height: Pixels,
950 em_width: Pixels,
951 autoscroll_containing_element: bool,
952 cx: &mut WindowContext,
953 ) -> Vec<CursorLayout> {
954 let mut autoscroll_bounds = None;
955 let cursor_layouts = self.editor.update(cx, |editor, cx| {
956 let mut cursors = Vec::new();
957 for (player_color, selections) in selections {
958 for selection in selections {
959 let cursor_position = selection.head;
960
961 let in_range = visible_display_row_range.contains(&cursor_position.row());
962 if (selection.is_local && !editor.show_local_cursors(cx)) || !in_range {
963 continue;
964 }
965
966 let cursor_row_layout = &line_layouts
967 [cursor_position.row().minus(visible_display_row_range.start) as usize]
968 .line;
969 let cursor_column = cursor_position.column() as usize;
970
971 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
972 let mut block_width =
973 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
974 if block_width == Pixels::ZERO {
975 block_width = em_width;
976 }
977 let block_text = if let CursorShape::Block = selection.cursor_shape {
978 snapshot.display_chars_at(cursor_position).next().and_then(
979 |(character, _)| {
980 let text = if character == '\n' {
981 SharedString::from(" ")
982 } else {
983 SharedString::from(character.to_string())
984 };
985 let len = text.len();
986
987 let font = cursor_row_layout
988 .font_id_for_index(cursor_column)
989 .and_then(|cursor_font_id| {
990 cx.text_system().get_font_for_id(cursor_font_id)
991 })
992 .unwrap_or(self.style.text.font());
993
994 cx.text_system()
995 .shape_line(
996 text,
997 cursor_row_layout.font_size,
998 &[TextRun {
999 len,
1000 font,
1001 color: self.style.background,
1002 background_color: None,
1003 strikethrough: None,
1004 underline: None,
1005 }],
1006 )
1007 .log_err()
1008 },
1009 )
1010 } else {
1011 None
1012 };
1013
1014 let x = cursor_character_x - scroll_pixel_position.x;
1015 let y = (cursor_position.row().as_f32()
1016 - scroll_pixel_position.y / line_height)
1017 * line_height;
1018 if selection.is_newest {
1019 editor.pixel_position_of_newest_cursor = Some(point(
1020 text_hitbox.origin.x + x + block_width / 2.,
1021 text_hitbox.origin.y + y + line_height / 2.,
1022 ));
1023
1024 if autoscroll_containing_element {
1025 let top = text_hitbox.origin.y
1026 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1027 * line_height;
1028 let left = text_hitbox.origin.x
1029 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1030 .max(0.)
1031 * em_width;
1032
1033 let bottom = text_hitbox.origin.y
1034 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1035 * line_height;
1036 let right = text_hitbox.origin.x
1037 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1038 * em_width;
1039
1040 autoscroll_bounds =
1041 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1042 }
1043 }
1044
1045 let mut cursor = CursorLayout {
1046 color: player_color.cursor,
1047 block_width,
1048 origin: point(x, y),
1049 line_height,
1050 shape: selection.cursor_shape,
1051 block_text,
1052 cursor_name: None,
1053 };
1054 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1055 string: name,
1056 color: self.style.background,
1057 is_top_row: cursor_position.row().0 == 0,
1058 });
1059 cursor.layout(content_origin, cursor_name, cx);
1060 cursors.push(cursor);
1061 }
1062 }
1063 cursors
1064 });
1065
1066 if let Some(bounds) = autoscroll_bounds {
1067 cx.request_autoscroll(bounds);
1068 }
1069
1070 cursor_layouts
1071 }
1072
1073 fn layout_scrollbar(
1074 &self,
1075 snapshot: &EditorSnapshot,
1076 bounds: Bounds<Pixels>,
1077 scroll_position: gpui::Point<f32>,
1078 rows_per_page: f32,
1079 non_visible_cursors: bool,
1080 cx: &mut WindowContext,
1081 ) -> Option<ScrollbarLayout> {
1082 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1083 let show_scrollbars = match scrollbar_settings.show {
1084 ShowScrollbar::Auto => {
1085 let editor = self.editor.read(cx);
1086 let is_singleton = editor.is_singleton(cx);
1087 // Git
1088 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1089 ||
1090 // Buffer Search Results
1091 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1092 ||
1093 // Selected Symbol Occurrences
1094 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1095 ||
1096 // Diagnostics
1097 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1098 ||
1099 // Cursors out of sight
1100 non_visible_cursors
1101 ||
1102 // Scrollmanager
1103 editor.scroll_manager.scrollbars_visible()
1104 }
1105 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1106 ShowScrollbar::Always => true,
1107 ShowScrollbar::Never => false,
1108 };
1109 if snapshot.mode != EditorMode::Full {
1110 return None;
1111 }
1112
1113 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1114
1115 // If a drag took place after we started dragging the scrollbar,
1116 // cancel the scrollbar drag.
1117 if cx.has_active_drag() {
1118 self.editor.update(cx, |editor, cx| {
1119 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1120 });
1121 }
1122
1123 let track_bounds = Bounds::from_corners(
1124 point(self.scrollbar_left(&bounds), bounds.origin.y),
1125 point(bounds.lower_right().x, bounds.lower_left().y),
1126 );
1127
1128 let height = bounds.size.height;
1129 let total_rows = snapshot.max_point().row().as_f32() + rows_per_page;
1130 let px_per_row = height / total_rows;
1131 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1132 let row_height = (height - thumb_height) / snapshot.max_point().row().as_f32();
1133
1134 Some(ScrollbarLayout {
1135 hitbox: cx.insert_hitbox(track_bounds, false),
1136 visible_row_range,
1137 row_height,
1138 visible: show_scrollbars,
1139 thumb_height,
1140 })
1141 }
1142
1143 #[allow(clippy::too_many_arguments)]
1144 fn layout_gutter_fold_indicators(
1145 &self,
1146 fold_statuses: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
1147 line_height: Pixels,
1148 gutter_dimensions: &GutterDimensions,
1149 gutter_settings: crate::editor_settings::Gutter,
1150 scroll_pixel_position: gpui::Point<Pixels>,
1151 gutter_hitbox: &Hitbox,
1152 cx: &mut WindowContext,
1153 ) -> Vec<Option<AnyElement>> {
1154 let mut indicators = self.editor.update(cx, |editor, cx| {
1155 editor.render_fold_indicators(
1156 fold_statuses,
1157 &self.style,
1158 editor.gutter_hovered,
1159 line_height,
1160 gutter_dimensions.margin,
1161 cx,
1162 )
1163 });
1164
1165 for (ix, fold_indicator) in indicators.iter_mut().enumerate() {
1166 if let Some(fold_indicator) = fold_indicator {
1167 debug_assert!(gutter_settings.folds);
1168 let available_space = size(
1169 AvailableSpace::MinContent,
1170 AvailableSpace::Definite(line_height * 0.55),
1171 );
1172 let fold_indicator_size = fold_indicator.layout_as_root(available_space, cx);
1173
1174 let position = point(
1175 gutter_dimensions.width - gutter_dimensions.right_padding,
1176 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1177 );
1178 let centering_offset = point(
1179 (gutter_dimensions.right_padding + gutter_dimensions.margin
1180 - fold_indicator_size.width)
1181 / 2.,
1182 (line_height - fold_indicator_size.height) / 2.,
1183 );
1184 let origin = gutter_hitbox.origin + position + centering_offset;
1185 fold_indicator.prepaint_as_root(origin, available_space, cx);
1186 }
1187 }
1188
1189 indicators
1190 }
1191
1192 // Folds contained in a hunk are ignored apart from shrinking visual size
1193 // If a fold contains any hunks then that fold line is marked as modified
1194 fn layout_git_gutters(
1195 &self,
1196 line_height: Pixels,
1197 gutter_hitbox: &Hitbox,
1198 display_rows: Range<DisplayRow>,
1199 snapshot: &EditorSnapshot,
1200 cx: &mut WindowContext,
1201 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1202 let buffer_snapshot = &snapshot.buffer_snapshot;
1203
1204 let buffer_start_row = MultiBufferRow(
1205 DisplayPoint::new(display_rows.start, 0)
1206 .to_point(snapshot)
1207 .row,
1208 );
1209 let buffer_end_row = MultiBufferRow(
1210 DisplayPoint::new(display_rows.end, 0)
1211 .to_point(snapshot)
1212 .row,
1213 );
1214
1215 let expanded_hunk_display_rows = self.editor.update(cx, |editor, _| {
1216 editor
1217 .expanded_hunks
1218 .hunks(false)
1219 .map(|expanded_hunk| {
1220 let start_row = expanded_hunk
1221 .hunk_range
1222 .start
1223 .to_display_point(snapshot)
1224 .row();
1225 let end_row = expanded_hunk
1226 .hunk_range
1227 .end
1228 .to_display_point(snapshot)
1229 .row();
1230 (start_row, end_row)
1231 })
1232 .collect::<HashMap<_, _>>()
1233 });
1234
1235 buffer_snapshot
1236 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1237 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
1238 .dedup()
1239 .map(|hunk| {
1240 let hitbox = if let DisplayDiffHunk::Unfolded {
1241 display_row_range, ..
1242 } = &hunk
1243 {
1244 let was_expanded = expanded_hunk_display_rows
1245 .get(&display_row_range.start)
1246 .map(|expanded_end_row| expanded_end_row == &display_row_range.end)
1247 .unwrap_or(false);
1248 if was_expanded {
1249 None
1250 } else {
1251 let hunk_bounds = Self::diff_hunk_bounds(
1252 &snapshot,
1253 line_height,
1254 gutter_hitbox.bounds,
1255 &hunk,
1256 );
1257 Some(cx.insert_hitbox(hunk_bounds, true))
1258 }
1259 } else {
1260 None
1261 };
1262 (hunk, hitbox)
1263 })
1264 .collect()
1265 }
1266
1267 #[allow(clippy::too_many_arguments)]
1268 fn layout_inline_blame(
1269 &self,
1270 display_row: DisplayRow,
1271 display_snapshot: &DisplaySnapshot,
1272 line_layout: &LineWithInvisibles,
1273 em_width: Pixels,
1274 content_origin: gpui::Point<Pixels>,
1275 scroll_pixel_position: gpui::Point<Pixels>,
1276 line_height: Pixels,
1277 cx: &mut WindowContext,
1278 ) -> Option<AnyElement> {
1279 if !self
1280 .editor
1281 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1282 {
1283 return None;
1284 }
1285
1286 let workspace = self
1287 .editor
1288 .read(cx)
1289 .workspace
1290 .as_ref()
1291 .map(|(w, _)| w.clone());
1292
1293 let display_point = DisplayPoint::new(display_row, 0);
1294 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1295
1296 let blame = self.editor.read(cx).blame.clone()?;
1297 let blame_entry = blame
1298 .update(cx, |blame, cx| {
1299 blame.blame_for_rows([Some(buffer_row)], cx).next()
1300 })
1301 .flatten()?;
1302
1303 let mut element =
1304 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1305
1306 let start_y = content_origin.y
1307 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1308
1309 let start_x = {
1310 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1311
1312 let padded_line_width =
1313 line_layout.line.width + (em_width * INLINE_BLAME_PADDING_EM_WIDTHS);
1314
1315 let min_column = ProjectSettings::get_global(cx)
1316 .git
1317 .inline_blame
1318 .and_then(|settings| settings.min_column)
1319 .map(|col| self.column_pixels(col as usize, cx))
1320 .unwrap_or(px(0.));
1321
1322 (content_origin.x - scroll_pixel_position.x) + max(padded_line_width, min_column)
1323 };
1324
1325 let absolute_offset = point(start_x, start_y);
1326 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1327
1328 element.prepaint_as_root(absolute_offset, available_space, cx);
1329
1330 Some(element)
1331 }
1332
1333 #[allow(clippy::too_many_arguments)]
1334 fn layout_blame_entries(
1335 &self,
1336 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1337 em_width: Pixels,
1338 scroll_position: gpui::Point<f32>,
1339 line_height: Pixels,
1340 gutter_hitbox: &Hitbox,
1341 max_width: Option<Pixels>,
1342 cx: &mut WindowContext,
1343 ) -> Option<Vec<AnyElement>> {
1344 if !self
1345 .editor
1346 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1347 {
1348 return None;
1349 }
1350
1351 let blame = self.editor.read(cx).blame.clone()?;
1352 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1353 blame.blame_for_rows(buffer_rows, cx).collect()
1354 });
1355
1356 let width = if let Some(max_width) = max_width {
1357 AvailableSpace::Definite(max_width)
1358 } else {
1359 AvailableSpace::MaxContent
1360 };
1361 let scroll_top = scroll_position.y * line_height;
1362 let start_x = em_width * 1;
1363
1364 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1365
1366 let shaped_lines = blamed_rows
1367 .into_iter()
1368 .enumerate()
1369 .flat_map(|(ix, blame_entry)| {
1370 if let Some(blame_entry) = blame_entry {
1371 let mut element = render_blame_entry(
1372 ix,
1373 &blame,
1374 blame_entry,
1375 &self.style,
1376 &mut last_used_color,
1377 self.editor.clone(),
1378 cx,
1379 );
1380
1381 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1382 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1383
1384 element.prepaint_as_root(
1385 absolute_offset,
1386 size(width, AvailableSpace::MinContent),
1387 cx,
1388 );
1389
1390 Some(element)
1391 } else {
1392 None
1393 }
1394 })
1395 .collect();
1396
1397 Some(shaped_lines)
1398 }
1399
1400 fn layout_run_indicators(
1401 &self,
1402 line_height: Pixels,
1403 scroll_pixel_position: gpui::Point<Pixels>,
1404 gutter_dimensions: &GutterDimensions,
1405 gutter_hitbox: &Hitbox,
1406 snapshot: &EditorSnapshot,
1407 cx: &mut WindowContext,
1408 ) -> Vec<AnyElement> {
1409 self.editor.update(cx, |editor, cx| {
1410 let active_task_indicator_row =
1411 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1412 deployed_from_indicator,
1413 actions,
1414 ..
1415 })) = editor.context_menu.read().as_ref()
1416 {
1417 actions
1418 .tasks
1419 .as_ref()
1420 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1421 .or_else(|| *deployed_from_indicator)
1422 } else {
1423 None
1424 };
1425 editor
1426 .tasks
1427 .iter()
1428 .filter_map(|(_, (multibuffer_offset, _))| {
1429 let multibuffer_point = multibuffer_offset.to_point(&snapshot.buffer_snapshot);
1430 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1431 if snapshot.is_line_folded(multibuffer_row) {
1432 return None;
1433 }
1434 let display_row = multibuffer_point.to_display_point(snapshot).row();
1435 let button = editor.render_run_indicator(
1436 &self.style,
1437 Some(display_row) == active_task_indicator_row,
1438 display_row,
1439 cx,
1440 );
1441
1442 let button = prepaint_gutter_button(
1443 button,
1444 display_row,
1445 line_height,
1446 gutter_dimensions,
1447 scroll_pixel_position,
1448 gutter_hitbox,
1449 cx,
1450 );
1451 Some(button)
1452 })
1453 .collect_vec()
1454 })
1455 }
1456
1457 fn layout_code_actions_indicator(
1458 &self,
1459 line_height: Pixels,
1460 newest_selection_head: DisplayPoint,
1461 scroll_pixel_position: gpui::Point<Pixels>,
1462 gutter_dimensions: &GutterDimensions,
1463 gutter_hitbox: &Hitbox,
1464 cx: &mut WindowContext,
1465 ) -> Option<AnyElement> {
1466 let mut active = false;
1467 let mut button = None;
1468 let row = newest_selection_head.row();
1469 self.editor.update(cx, |editor, cx| {
1470 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1471 deployed_from_indicator,
1472 ..
1473 })) = editor.context_menu.read().as_ref()
1474 {
1475 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1476 };
1477 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1478 });
1479
1480 let button = prepaint_gutter_button(
1481 button?,
1482 row,
1483 line_height,
1484 gutter_dimensions,
1485 scroll_pixel_position,
1486 gutter_hitbox,
1487 cx,
1488 );
1489
1490 Some(button)
1491 }
1492
1493 fn get_participant_color(
1494 participant_index: Option<ParticipantIndex>,
1495 cx: &WindowContext,
1496 ) -> PlayerColor {
1497 if let Some(index) = participant_index {
1498 cx.theme().players().color_for_participant(index.0)
1499 } else {
1500 cx.theme().players().absent()
1501 }
1502 }
1503
1504 fn calculate_relative_line_numbers(
1505 &self,
1506 snapshot: &EditorSnapshot,
1507 rows: &Range<DisplayRow>,
1508 relative_to: Option<DisplayRow>,
1509 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1510 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1511 let Some(relative_to) = relative_to else {
1512 return relative_rows;
1513 };
1514
1515 let start = rows.start.min(relative_to);
1516 let end = rows.end.max(relative_to);
1517
1518 let buffer_rows = snapshot
1519 .display_rows(start)
1520 .take(1 + end.minus(start) as usize)
1521 .collect::<Vec<_>>();
1522
1523 let head_idx = relative_to.minus(start);
1524 let mut delta = 1;
1525 let mut i = head_idx + 1;
1526 while i < buffer_rows.len() as u32 {
1527 if buffer_rows[i as usize].is_some() {
1528 if rows.contains(&DisplayRow(i + start.0)) {
1529 relative_rows.insert(DisplayRow(i + start.0), delta);
1530 }
1531 delta += 1;
1532 }
1533 i += 1;
1534 }
1535 delta = 1;
1536 i = head_idx.min(buffer_rows.len() as u32 - 1);
1537 while i > 0 && buffer_rows[i as usize].is_none() {
1538 i -= 1;
1539 }
1540
1541 while i > 0 {
1542 i -= 1;
1543 if buffer_rows[i as usize].is_some() {
1544 if rows.contains(&DisplayRow(i + start.0)) {
1545 relative_rows.insert(DisplayRow(i + start.0), delta);
1546 }
1547 delta += 1;
1548 }
1549 }
1550
1551 relative_rows
1552 }
1553
1554 fn layout_line_numbers(
1555 &self,
1556 rows: Range<DisplayRow>,
1557 buffer_rows: impl Iterator<Item = Option<DisplayRow>>,
1558 active_rows: &BTreeMap<DisplayRow, bool>,
1559 newest_selection_head: Option<DisplayPoint>,
1560 snapshot: &EditorSnapshot,
1561 cx: &WindowContext,
1562 ) -> (
1563 Vec<Option<ShapedLine>>,
1564 Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
1565 ) {
1566 let editor = self.editor.read(cx);
1567 let is_singleton = editor.is_singleton(cx);
1568 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1569 let newest = editor.selections.newest::<Point>(cx);
1570 SelectionLayout::new(
1571 newest,
1572 editor.selections.line_mode,
1573 editor.cursor_shape,
1574 &snapshot.display_snapshot,
1575 true,
1576 true,
1577 None,
1578 )
1579 .head
1580 });
1581 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1582 let include_line_numbers =
1583 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full;
1584 let include_fold_statuses =
1585 EditorSettings::get_global(cx).gutter.folds && snapshot.mode == EditorMode::Full;
1586 let mut shaped_line_numbers = Vec::with_capacity(rows.len());
1587 let mut fold_statuses = Vec::with_capacity(rows.len());
1588 let mut line_number = String::new();
1589 let is_relative = EditorSettings::get_global(cx).relative_line_numbers;
1590 let relative_to = if is_relative {
1591 Some(newest_selection_head.row())
1592 } else {
1593 None
1594 };
1595
1596 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1597
1598 for (ix, row) in buffer_rows.into_iter().enumerate() {
1599 let display_row = DisplayRow(rows.start.0 + ix as u32);
1600 let (active, color) = if active_rows.contains_key(&display_row) {
1601 (true, cx.theme().colors().editor_active_line_number)
1602 } else {
1603 (false, cx.theme().colors().editor_line_number)
1604 };
1605 if let Some(display_row) = row {
1606 if include_line_numbers {
1607 line_number.clear();
1608 let default_number = display_row.0 + 1;
1609 let number = relative_rows
1610 .get(&DisplayRow(ix as u32 + rows.start.0))
1611 .unwrap_or(&default_number);
1612 write!(&mut line_number, "{number}").unwrap();
1613 let run = TextRun {
1614 len: line_number.len(),
1615 font: self.style.text.font(),
1616 color,
1617 background_color: None,
1618 underline: None,
1619 strikethrough: None,
1620 };
1621 let shaped_line = cx
1622 .text_system()
1623 .shape_line(line_number.clone().into(), font_size, &[run])
1624 .unwrap();
1625 shaped_line_numbers.push(Some(shaped_line));
1626 }
1627 if include_fold_statuses {
1628 fold_statuses.push(
1629 is_singleton
1630 .then(|| {
1631 let multibuffer_point =
1632 DisplayPoint::new(display_row, 0).to_point(snapshot);
1633 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1634 snapshot
1635 .fold_for_line(multibuffer_row)
1636 .map(|fold_status| (fold_status, multibuffer_row, active))
1637 })
1638 .flatten(),
1639 )
1640 }
1641 } else {
1642 fold_statuses.push(None);
1643 shaped_line_numbers.push(None);
1644 }
1645 }
1646
1647 (shaped_line_numbers, fold_statuses)
1648 }
1649
1650 fn layout_lines(
1651 &self,
1652 rows: Range<DisplayRow>,
1653 line_number_layouts: &[Option<ShapedLine>],
1654 snapshot: &EditorSnapshot,
1655 cx: &WindowContext,
1656 ) -> Vec<LineWithInvisibles> {
1657 if rows.start >= rows.end {
1658 return Vec::new();
1659 }
1660
1661 // Show the placeholder when the editor is empty
1662 if snapshot.is_empty() {
1663 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1664 let placeholder_color = cx.theme().colors().text_placeholder;
1665 let placeholder_text = snapshot.placeholder_text();
1666
1667 let placeholder_lines = placeholder_text
1668 .as_ref()
1669 .map_or("", AsRef::as_ref)
1670 .split('\n')
1671 .skip(rows.start.0 as usize)
1672 .chain(iter::repeat(""))
1673 .take(rows.len());
1674 placeholder_lines
1675 .filter_map(move |line| {
1676 let run = TextRun {
1677 len: line.len(),
1678 font: self.style.text.font(),
1679 color: placeholder_color,
1680 background_color: None,
1681 underline: Default::default(),
1682 strikethrough: None,
1683 };
1684 cx.text_system()
1685 .shape_line(line.to_string().into(), font_size, &[run])
1686 .log_err()
1687 })
1688 .map(|line| LineWithInvisibles {
1689 line,
1690 invisibles: Vec::new(),
1691 })
1692 .collect()
1693 } else {
1694 let chunks = snapshot.highlighted_chunks(rows.clone(), true, &self.style);
1695 LineWithInvisibles::from_chunks(
1696 chunks,
1697 &self.style.text,
1698 MAX_LINE_LEN,
1699 rows.len(),
1700 line_number_layouts,
1701 snapshot.mode,
1702 cx,
1703 )
1704 }
1705 }
1706
1707 #[allow(clippy::too_many_arguments)]
1708 fn build_blocks(
1709 &self,
1710 rows: Range<DisplayRow>,
1711 snapshot: &EditorSnapshot,
1712 hitbox: &Hitbox,
1713 text_hitbox: &Hitbox,
1714 scroll_width: &mut Pixels,
1715 gutter_dimensions: &GutterDimensions,
1716 em_width: Pixels,
1717 text_x: Pixels,
1718 line_height: Pixels,
1719 line_layouts: &[LineWithInvisibles],
1720 cx: &mut WindowContext,
1721 ) -> Vec<BlockLayout> {
1722 let mut block_id = 0;
1723 let (fixed_blocks, non_fixed_blocks) = snapshot
1724 .blocks_in_range(rows.clone())
1725 .partition::<Vec<_>, _>(|(_, block)| match block {
1726 TransformBlock::ExcerptHeader { .. } => false,
1727 TransformBlock::Custom(block) => block.style() == BlockStyle::Fixed,
1728 });
1729
1730 let render_block = |block: &TransformBlock,
1731 available_space: Size<AvailableSpace>,
1732 block_id: usize,
1733 block_row_start: DisplayRow,
1734 cx: &mut WindowContext| {
1735 let mut element = match block {
1736 TransformBlock::Custom(block) => {
1737 let align_to = block
1738 .position()
1739 .to_point(&snapshot.buffer_snapshot)
1740 .to_display_point(snapshot);
1741 let anchor_x = text_x
1742 + if rows.contains(&align_to.row()) {
1743 line_layouts[align_to.row().minus(rows.start) as usize]
1744 .line
1745 .x_for_index(align_to.column() as usize)
1746 } else {
1747 layout_line(align_to.row(), snapshot, &self.style, cx)
1748 .unwrap()
1749 .x_for_index(align_to.column() as usize)
1750 };
1751
1752 block.render(&mut BlockContext {
1753 context: cx,
1754 anchor_x,
1755 gutter_dimensions,
1756 line_height,
1757 em_width,
1758 block_id,
1759 max_width: text_hitbox.size.width.max(*scroll_width),
1760 editor_style: &self.style,
1761 })
1762 }
1763
1764 TransformBlock::ExcerptHeader {
1765 buffer,
1766 range,
1767 starts_new_buffer,
1768 height,
1769 id,
1770 ..
1771 } => {
1772 let include_root = self
1773 .editor
1774 .read(cx)
1775 .project
1776 .as_ref()
1777 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
1778 .unwrap_or_default();
1779
1780 #[derive(Clone)]
1781 struct JumpData {
1782 position: Point,
1783 anchor: text::Anchor,
1784 path: ProjectPath,
1785 line_offset_from_top: u32,
1786 }
1787
1788 let jump_data = project::File::from_dyn(buffer.file()).map(|file| {
1789 let jump_path = ProjectPath {
1790 worktree_id: file.worktree_id(cx),
1791 path: file.path.clone(),
1792 };
1793 let jump_anchor = range
1794 .primary
1795 .as_ref()
1796 .map_or(range.context.start, |primary| primary.start);
1797
1798 let excerpt_start = range.context.start;
1799 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
1800 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
1801 0
1802 } else {
1803 let excerpt_start_row =
1804 language::ToPoint::to_point(&jump_anchor, buffer).row;
1805 jump_position.row - excerpt_start_row
1806 };
1807
1808 let line_offset_from_top =
1809 block_row_start.0 + *height as u32 + offset_from_excerpt_start
1810 - snapshot
1811 .scroll_anchor
1812 .scroll_position(&snapshot.display_snapshot)
1813 .y as u32;
1814
1815 JumpData {
1816 position: jump_position,
1817 anchor: jump_anchor,
1818 path: jump_path,
1819 line_offset_from_top,
1820 }
1821 });
1822
1823 let element = if *starts_new_buffer {
1824 let path = buffer.resolve_file_path(cx, include_root);
1825 let mut filename = None;
1826 let mut parent_path = None;
1827 // Can't use .and_then() because `.file_name()` and `.parent()` return references :(
1828 if let Some(path) = path {
1829 filename = path.file_name().map(|f| f.to_string_lossy().to_string());
1830 parent_path = path
1831 .parent()
1832 .map(|p| SharedString::from(p.to_string_lossy().to_string() + "/"));
1833 }
1834
1835 v_flex()
1836 .id(("path header container", block_id))
1837 .size_full()
1838 .justify_center()
1839 .p(gpui::px(6.))
1840 .child(
1841 h_flex()
1842 .id("path header block")
1843 .size_full()
1844 .pl(gpui::px(12.))
1845 .pr(gpui::px(8.))
1846 .rounded_md()
1847 .shadow_md()
1848 .border_1()
1849 .border_color(cx.theme().colors().border)
1850 .bg(cx.theme().colors().editor_subheader_background)
1851 .justify_between()
1852 .hover(|style| style.bg(cx.theme().colors().element_hover))
1853 .child(
1854 h_flex().gap_3().child(
1855 h_flex()
1856 .gap_2()
1857 .child(
1858 filename
1859 .map(SharedString::from)
1860 .unwrap_or_else(|| "untitled".into()),
1861 )
1862 .when_some(parent_path, |then, path| {
1863 then.child(
1864 div().child(path).text_color(
1865 cx.theme().colors().text_muted,
1866 ),
1867 )
1868 }),
1869 ),
1870 )
1871 .when_some(jump_data.clone(), |this, jump_data| {
1872 this.cursor_pointer()
1873 .tooltip(|cx| {
1874 Tooltip::for_action(
1875 "Jump to File",
1876 &OpenExcerpts,
1877 cx,
1878 )
1879 })
1880 .on_mouse_down(MouseButton::Left, |_, cx| {
1881 cx.stop_propagation()
1882 })
1883 .on_click(cx.listener_for(&self.editor, {
1884 move |editor, _, cx| {
1885 editor.jump(
1886 jump_data.path.clone(),
1887 jump_data.position,
1888 jump_data.anchor,
1889 jump_data.line_offset_from_top,
1890 cx,
1891 );
1892 }
1893 }))
1894 }),
1895 )
1896 } else {
1897 v_flex()
1898 .id(("collapsed context", block_id))
1899 .size_full()
1900 .child(
1901 div()
1902 .flex()
1903 .v_flex()
1904 .justify_start()
1905 .id("jump to collapsed context")
1906 .w(relative(1.0))
1907 .h_full()
1908 .child(
1909 div()
1910 .h_px()
1911 .w_full()
1912 .bg(cx.theme().colors().border_variant)
1913 .group_hover("excerpt-jump-action", |style| {
1914 style.bg(cx.theme().colors().border)
1915 }),
1916 ),
1917 )
1918 .child(
1919 h_flex()
1920 .justify_end()
1921 .flex_none()
1922 .w(
1923 gutter_dimensions.width - (gutter_dimensions.left_padding), // + gutter_dimensions.right_padding)
1924 )
1925 .h_full()
1926 .child(
1927 ButtonLike::new("expand-icon")
1928 .style(ButtonStyle::Transparent)
1929 .child(
1930 svg()
1931 .path(IconName::ExpandVertical.path())
1932 .size(IconSize::XSmall.rems())
1933 .text_color(
1934 cx.theme().colors().editor_line_number,
1935 )
1936 .group("")
1937 .hover(|style| {
1938 style.text_color(
1939 cx.theme()
1940 .colors()
1941 .editor_active_line_number,
1942 )
1943 }),
1944 )
1945 .on_click(cx.listener_for(&self.editor, {
1946 let id = *id;
1947 move |editor, _, cx| {
1948 editor.expand_excerpt(id, cx);
1949 }
1950 }))
1951 .tooltip({
1952 move |cx| {
1953 Tooltip::for_action(
1954 "Expand Excerpt",
1955 &ExpandExcerpts { lines: 0 },
1956 cx,
1957 )
1958 }
1959 }),
1960 ),
1961 )
1962 .group("excerpt-jump-action")
1963 .cursor_pointer()
1964 .when_some(jump_data.clone(), |this, jump_data| {
1965 this.on_click(cx.listener_for(&self.editor, {
1966 let path = jump_data.path.clone();
1967 move |editor, _, cx| {
1968 cx.stop_propagation();
1969
1970 editor.jump(
1971 path.clone(),
1972 jump_data.position,
1973 jump_data.anchor,
1974 jump_data.line_offset_from_top,
1975 cx,
1976 );
1977 }
1978 }))
1979 .tooltip(move |cx| {
1980 Tooltip::for_action(
1981 format!(
1982 "Jump to {}:L{}",
1983 jump_data.path.path.display(),
1984 jump_data.position.row + 1
1985 ),
1986 &OpenExcerpts,
1987 cx,
1988 )
1989 })
1990 })
1991 };
1992 element.into_any()
1993 }
1994 };
1995
1996 let size = element.layout_as_root(available_space, cx);
1997 (element, size)
1998 };
1999
2000 let mut fixed_block_max_width = Pixels::ZERO;
2001 let mut blocks = Vec::new();
2002 for (row, block) in fixed_blocks {
2003 let available_space = size(
2004 AvailableSpace::MinContent,
2005 AvailableSpace::Definite(block.height() as f32 * line_height),
2006 );
2007 let (element, element_size) = render_block(block, available_space, block_id, row, cx);
2008 block_id += 1;
2009 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2010 blocks.push(BlockLayout {
2011 row,
2012 element,
2013 available_space,
2014 style: BlockStyle::Fixed,
2015 });
2016 }
2017 for (row, block) in non_fixed_blocks {
2018 let style = match block {
2019 TransformBlock::Custom(block) => block.style(),
2020 TransformBlock::ExcerptHeader { .. } => BlockStyle::Sticky,
2021 };
2022 let width = match style {
2023 BlockStyle::Sticky => hitbox.size.width,
2024 BlockStyle::Flex => hitbox
2025 .size
2026 .width
2027 .max(fixed_block_max_width)
2028 .max(gutter_dimensions.width + *scroll_width),
2029 BlockStyle::Fixed => unreachable!(),
2030 };
2031 let available_space = size(
2032 AvailableSpace::Definite(width),
2033 AvailableSpace::Definite(block.height() as f32 * line_height),
2034 );
2035 let (element, _) = render_block(block, available_space, block_id, row, cx);
2036 block_id += 1;
2037 blocks.push(BlockLayout {
2038 row,
2039 element,
2040 available_space,
2041 style,
2042 });
2043 }
2044
2045 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2046 blocks
2047 }
2048
2049 fn layout_blocks(
2050 &self,
2051 blocks: &mut Vec<BlockLayout>,
2052 hitbox: &Hitbox,
2053 line_height: Pixels,
2054 scroll_pixel_position: gpui::Point<Pixels>,
2055 cx: &mut WindowContext,
2056 ) {
2057 for block in blocks {
2058 let mut origin = hitbox.origin
2059 + point(
2060 Pixels::ZERO,
2061 block.row.as_f32() * line_height - scroll_pixel_position.y,
2062 );
2063 if !matches!(block.style, BlockStyle::Sticky) {
2064 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2065 }
2066 block
2067 .element
2068 .prepaint_as_root(origin, block.available_space, cx);
2069 }
2070 }
2071
2072 #[allow(clippy::too_many_arguments)]
2073 fn layout_context_menu(
2074 &self,
2075 line_height: Pixels,
2076 hitbox: &Hitbox,
2077 text_hitbox: &Hitbox,
2078 content_origin: gpui::Point<Pixels>,
2079 start_row: DisplayRow,
2080 scroll_pixel_position: gpui::Point<Pixels>,
2081 line_layouts: &[LineWithInvisibles],
2082 newest_selection_head: DisplayPoint,
2083 gutter_overshoot: Pixels,
2084 cx: &mut WindowContext,
2085 ) -> bool {
2086 let max_height = cmp::min(
2087 12. * line_height,
2088 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2089 );
2090 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2091 if editor.context_menu_visible() {
2092 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2093 } else {
2094 None
2095 }
2096 }) else {
2097 return false;
2098 };
2099
2100 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2101 let context_menu_size = context_menu.layout_as_root(available_space, cx);
2102
2103 let (x, y) = match position {
2104 crate::ContextMenuOrigin::EditorPoint(point) => {
2105 let cursor_row_layout = &line_layouts[point.row().minus(start_row) as usize].line;
2106 let x = cursor_row_layout.x_for_index(point.column() as usize)
2107 - scroll_pixel_position.x;
2108 let y = point.row().next_row().as_f32() * line_height - scroll_pixel_position.y;
2109 (x, y)
2110 }
2111 crate::ContextMenuOrigin::GutterIndicator(row) => {
2112 // 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
2113 // text field.
2114 let x = -gutter_overshoot;
2115 let y = row.next_row().as_f32() * line_height - scroll_pixel_position.y;
2116 (x, y)
2117 }
2118 };
2119
2120 let mut list_origin = content_origin + point(x, y);
2121 let list_width = context_menu_size.width;
2122 let list_height = context_menu_size.height;
2123
2124 // Snap the right edge of the list to the right edge of the window if
2125 // its horizontal bounds overflow.
2126 if list_origin.x + list_width > cx.viewport_size().width {
2127 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2128 }
2129
2130 if list_origin.y + list_height > text_hitbox.lower_right().y {
2131 list_origin.y -= line_height + list_height;
2132 }
2133
2134 cx.defer_draw(context_menu, list_origin, 1);
2135 true
2136 }
2137
2138 fn layout_mouse_context_menu(&self, cx: &mut WindowContext) -> Option<AnyElement> {
2139 let mouse_context_menu = self.editor.read(cx).mouse_context_menu.as_ref()?;
2140 let mut element = deferred(
2141 anchored()
2142 .position(mouse_context_menu.position)
2143 .child(mouse_context_menu.context_menu.clone())
2144 .anchor(AnchorCorner::TopLeft)
2145 .snap_to_window(),
2146 )
2147 .with_priority(1)
2148 .into_any();
2149
2150 element.prepaint_as_root(gpui::Point::default(), AvailableSpace::min_size(), cx);
2151 Some(element)
2152 }
2153
2154 #[allow(clippy::too_many_arguments)]
2155 fn layout_hover_popovers(
2156 &self,
2157 snapshot: &EditorSnapshot,
2158 hitbox: &Hitbox,
2159 text_hitbox: &Hitbox,
2160 visible_display_row_range: Range<DisplayRow>,
2161 content_origin: gpui::Point<Pixels>,
2162 scroll_pixel_position: gpui::Point<Pixels>,
2163 line_layouts: &[LineWithInvisibles],
2164 line_height: Pixels,
2165 em_width: Pixels,
2166 cx: &mut WindowContext,
2167 ) {
2168 struct MeasuredHoverPopover {
2169 element: AnyElement,
2170 size: Size<Pixels>,
2171 horizontal_offset: Pixels,
2172 }
2173
2174 let max_size = size(
2175 (120. * em_width) // Default size
2176 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2177 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2178 (16. * line_height) // Default size
2179 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2180 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2181 );
2182
2183 let hover_popovers = self.editor.update(cx, |editor, cx| {
2184 editor.hover_state.render(
2185 &snapshot,
2186 &self.style,
2187 visible_display_row_range.clone(),
2188 max_size,
2189 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2190 cx,
2191 )
2192 });
2193 let Some((position, hover_popovers)) = hover_popovers else {
2194 return;
2195 };
2196
2197 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2198
2199 // This is safe because we check on layout whether the required row is available
2200 let hovered_row_layout =
2201 &line_layouts[position.row().minus(visible_display_row_range.start) as usize].line;
2202
2203 // Compute Hovered Point
2204 let x =
2205 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2206 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
2207 let hovered_point = content_origin + point(x, y);
2208
2209 let mut overall_height = Pixels::ZERO;
2210 let mut measured_hover_popovers = Vec::new();
2211 for mut hover_popover in hover_popovers {
2212 let size = hover_popover.layout_as_root(available_space, cx);
2213 let horizontal_offset =
2214 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2215
2216 overall_height += HOVER_POPOVER_GAP + size.height;
2217
2218 measured_hover_popovers.push(MeasuredHoverPopover {
2219 element: hover_popover,
2220 size,
2221 horizontal_offset,
2222 });
2223 }
2224 overall_height += HOVER_POPOVER_GAP;
2225
2226 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2227 let mut occlusion = div()
2228 .size_full()
2229 .occlude()
2230 .on_mouse_move(|_, cx| cx.stop_propagation())
2231 .into_any_element();
2232 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2233 cx.defer_draw(occlusion, origin, 2);
2234 }
2235
2236 if hovered_point.y > overall_height {
2237 // There is enough space above. Render popovers above the hovered point
2238 let mut current_y = hovered_point.y;
2239 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2240 let size = popover.size;
2241 let popover_origin = point(
2242 hovered_point.x + popover.horizontal_offset,
2243 current_y - size.height,
2244 );
2245
2246 cx.defer_draw(popover.element, popover_origin, 2);
2247 if position != itertools::Position::Last {
2248 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2249 draw_occluder(size.width, origin, cx);
2250 }
2251
2252 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2253 }
2254 } else {
2255 // There is not enough space above. Render popovers below the hovered point
2256 let mut current_y = hovered_point.y + line_height;
2257 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2258 let size = popover.size;
2259 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2260
2261 cx.defer_draw(popover.element, popover_origin, 2);
2262 if position != itertools::Position::Last {
2263 let origin = point(popover_origin.x, popover_origin.y + size.height);
2264 draw_occluder(size.width, origin, cx);
2265 }
2266
2267 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2268 }
2269 }
2270 }
2271
2272 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2273 cx.paint_layer(layout.hitbox.bounds, |cx| {
2274 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2275 let gutter_bg = cx.theme().colors().editor_gutter_background;
2276 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2277 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2278
2279 if let EditorMode::Full = layout.mode {
2280 let mut active_rows = layout.active_rows.iter().peekable();
2281 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2282 let mut end_row = start_row.0;
2283 while active_rows
2284 .peek()
2285 .map_or(false, |(active_row, has_selection)| {
2286 active_row.0 == end_row + 1
2287 && *has_selection == contains_non_empty_selection
2288 })
2289 {
2290 active_rows.next().unwrap();
2291 end_row += 1;
2292 }
2293
2294 if !contains_non_empty_selection {
2295 let origin = point(
2296 layout.hitbox.origin.x,
2297 layout.hitbox.origin.y
2298 + (start_row.as_f32() - scroll_top)
2299 * layout.position_map.line_height,
2300 );
2301 let size = size(
2302 layout.hitbox.size.width,
2303 layout.position_map.line_height * (end_row - start_row.0 + 1) as f32,
2304 );
2305 let active_line_bg = cx.theme().colors().editor_active_line_background;
2306 cx.paint_quad(fill(Bounds { origin, size }, active_line_bg));
2307 }
2308 }
2309
2310 let mut paint_highlight =
2311 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
2312 let origin = point(
2313 layout.hitbox.origin.x,
2314 layout.hitbox.origin.y
2315 + (highlight_row_start.as_f32() - scroll_top)
2316 * layout.position_map.line_height,
2317 );
2318 let size = size(
2319 layout.hitbox.size.width,
2320 layout.position_map.line_height
2321 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
2322 );
2323 cx.paint_quad(fill(Bounds { origin, size }, color));
2324 };
2325
2326 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
2327 for (&new_row, &new_color) in &layout.highlighted_rows {
2328 match &mut current_paint {
2329 Some((current_color, current_range)) => {
2330 let current_color = *current_color;
2331 let new_range_started = current_color != new_color
2332 || current_range.end.next_row() != new_row;
2333 if new_range_started {
2334 paint_highlight(
2335 current_range.start,
2336 current_range.end,
2337 current_color,
2338 );
2339 current_paint = Some((new_color, new_row..new_row));
2340 continue;
2341 } else {
2342 current_range.end = current_range.end.next_row();
2343 }
2344 }
2345 None => current_paint = Some((new_color, new_row..new_row)),
2346 };
2347 }
2348 if let Some((color, range)) = current_paint {
2349 paint_highlight(range.start, range.end, color);
2350 }
2351
2352 let scroll_left =
2353 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
2354
2355 for (wrap_position, active) in layout.wrap_guides.iter() {
2356 let x = (layout.text_hitbox.origin.x
2357 + *wrap_position
2358 + layout.position_map.em_width / 2.)
2359 - scroll_left;
2360
2361 let show_scrollbars = layout
2362 .scrollbar_layout
2363 .as_ref()
2364 .map_or(false, |scrollbar| scrollbar.visible);
2365 if x < layout.text_hitbox.origin.x
2366 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
2367 {
2368 continue;
2369 }
2370
2371 let color = if *active {
2372 cx.theme().colors().editor_active_wrap_guide
2373 } else {
2374 cx.theme().colors().editor_wrap_guide
2375 };
2376 cx.paint_quad(fill(
2377 Bounds {
2378 origin: point(x, layout.text_hitbox.origin.y),
2379 size: size(px(1.), layout.text_hitbox.size.height),
2380 },
2381 color,
2382 ));
2383 }
2384 }
2385 })
2386 }
2387
2388 fn paint_gutter(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2389 let line_height = layout.position_map.line_height;
2390
2391 let scroll_position = layout.position_map.snapshot.scroll_position();
2392 let scroll_top = scroll_position.y * line_height;
2393
2394 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
2395 for (_, hunk_hitbox) in &layout.display_hunks {
2396 if let Some(hunk_hitbox) = hunk_hitbox {
2397 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
2398 }
2399 }
2400
2401 let show_git_gutter = matches!(
2402 ProjectSettings::get_global(cx).git.git_gutter,
2403 Some(GitGutterSetting::TrackedFiles)
2404 );
2405 if show_git_gutter {
2406 Self::paint_diff_hunks(layout.gutter_hitbox.bounds, layout, cx)
2407 }
2408
2409 if layout.blamed_display_rows.is_some() {
2410 self.paint_blamed_display_rows(layout, cx);
2411 }
2412
2413 for (ix, line) in layout.line_numbers.iter().enumerate() {
2414 if let Some(line) = line {
2415 let line_origin = layout.gutter_hitbox.origin
2416 + point(
2417 layout.gutter_hitbox.size.width
2418 - line.width
2419 - layout.gutter_dimensions.right_padding,
2420 ix as f32 * line_height - (scroll_top % line_height),
2421 );
2422
2423 line.paint(line_origin, line_height, cx).log_err();
2424 }
2425 }
2426
2427 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2428 cx.with_element_namespace("gutter_fold_indicators", |cx| {
2429 for fold_indicator in layout.fold_indicators.iter_mut().flatten() {
2430 fold_indicator.paint(cx);
2431 }
2432 });
2433
2434 for test_indicators in layout.test_indicators.iter_mut() {
2435 test_indicators.paint(cx);
2436 }
2437
2438 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
2439 indicator.paint(cx);
2440 }
2441 });
2442 }
2443
2444 fn paint_diff_hunks(
2445 gutter_bounds: Bounds<Pixels>,
2446 layout: &EditorLayout,
2447 cx: &mut WindowContext,
2448 ) {
2449 if layout.display_hunks.is_empty() {
2450 return;
2451 }
2452
2453 let line_height = layout.position_map.line_height;
2454 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2455 for (hunk, hitbox) in &layout.display_hunks {
2456 let hunk_to_paint = match hunk {
2457 DisplayDiffHunk::Folded { .. } => {
2458 let hunk_bounds = Self::diff_hunk_bounds(
2459 &layout.position_map.snapshot,
2460 line_height,
2461 gutter_bounds,
2462 &hunk,
2463 );
2464 Some((
2465 hunk_bounds,
2466 cx.theme().status().modified,
2467 Corners::all(1. * line_height),
2468 ))
2469 }
2470 DisplayDiffHunk::Unfolded { status, .. } => {
2471 hitbox.as_ref().map(|hunk_hitbox| match status {
2472 DiffHunkStatus::Added => (
2473 hunk_hitbox.bounds,
2474 cx.theme().status().created,
2475 Corners::all(0.05 * line_height),
2476 ),
2477 DiffHunkStatus::Modified => (
2478 hunk_hitbox.bounds,
2479 cx.theme().status().modified,
2480 Corners::all(0.05 * line_height),
2481 ),
2482 DiffHunkStatus::Removed => (
2483 hunk_hitbox.bounds,
2484 cx.theme().status().deleted,
2485 Corners::all(1. * line_height),
2486 ),
2487 })
2488 }
2489 };
2490
2491 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
2492 cx.paint_quad(quad(
2493 hunk_bounds,
2494 corner_radii,
2495 background_color,
2496 Edges::default(),
2497 transparent_black(),
2498 ));
2499 }
2500 }
2501 });
2502 }
2503
2504 fn diff_hunk_bounds(
2505 snapshot: &EditorSnapshot,
2506 line_height: Pixels,
2507 bounds: Bounds<Pixels>,
2508 hunk: &DisplayDiffHunk,
2509 ) -> Bounds<Pixels> {
2510 let scroll_position = snapshot.scroll_position();
2511 let scroll_top = scroll_position.y * line_height;
2512
2513 match hunk {
2514 DisplayDiffHunk::Folded { display_row, .. } => {
2515 let start_y = display_row.as_f32() * line_height - scroll_top;
2516 let end_y = start_y + line_height;
2517
2518 let width = 0.275 * line_height;
2519 let highlight_origin = bounds.origin + point(-width, start_y);
2520 let highlight_size = size(width * 2., end_y - start_y);
2521 Bounds::new(highlight_origin, highlight_size)
2522 }
2523 DisplayDiffHunk::Unfolded {
2524 display_row_range,
2525 status,
2526 ..
2527 } => match status {
2528 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
2529 let start_row = display_row_range.start;
2530 let end_row = display_row_range.end;
2531 // If we're in a multibuffer, row range span might include an
2532 // excerpt header, so if we were to draw the marker straight away,
2533 // the hunk might include the rows of that header.
2534 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
2535 // Instead, we simply check whether the range we're dealing with includes
2536 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
2537 let end_row_in_current_excerpt = snapshot
2538 .blocks_in_range(start_row..end_row)
2539 .find_map(|(start_row, block)| {
2540 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
2541 Some(start_row)
2542 } else {
2543 None
2544 }
2545 })
2546 .unwrap_or(end_row);
2547
2548 let start_y = start_row.as_f32() * line_height - scroll_top;
2549 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
2550
2551 let width = 0.275 * line_height;
2552 let highlight_origin = bounds.origin + point(-width, start_y);
2553 let highlight_size = size(width * 2., end_y - start_y);
2554 Bounds::new(highlight_origin, highlight_size)
2555 }
2556 DiffHunkStatus::Removed => {
2557 let row = display_row_range.start;
2558
2559 let offset = line_height / 2.;
2560 let start_y = row.as_f32() * line_height - offset - scroll_top;
2561 let end_y = start_y + line_height;
2562
2563 let width = 0.35 * line_height;
2564 let highlight_origin = bounds.origin + point(-width, start_y);
2565 let highlight_size = size(width * 2., end_y - start_y);
2566 Bounds::new(highlight_origin, highlight_size)
2567 }
2568 },
2569 }
2570 }
2571
2572 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2573 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
2574 return;
2575 };
2576
2577 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2578 for mut blame_element in blamed_display_rows.into_iter() {
2579 blame_element.paint(cx);
2580 }
2581 })
2582 }
2583
2584 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2585 cx.with_content_mask(
2586 Some(ContentMask {
2587 bounds: layout.text_hitbox.bounds,
2588 }),
2589 |cx| {
2590 let cursor_style = if self
2591 .editor
2592 .read(cx)
2593 .hovered_link_state
2594 .as_ref()
2595 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
2596 {
2597 CursorStyle::PointingHand
2598 } else {
2599 CursorStyle::IBeam
2600 };
2601 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
2602
2603 cx.with_element_namespace("folds", |cx| self.paint_folds(layout, cx));
2604 let invisible_display_ranges = self.paint_highlights(layout, cx);
2605 self.paint_lines(&invisible_display_ranges, layout, cx);
2606 self.paint_redactions(layout, cx);
2607 self.paint_cursors(layout, cx);
2608 self.paint_inline_blame(layout, cx);
2609 },
2610 )
2611 }
2612
2613 fn paint_highlights(
2614 &mut self,
2615 layout: &mut EditorLayout,
2616 cx: &mut WindowContext,
2617 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
2618 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2619 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
2620 let line_end_overshoot = 0.15 * layout.position_map.line_height;
2621 for (range, color) in &layout.highlighted_ranges {
2622 self.paint_highlighted_range(
2623 range.clone(),
2624 *color,
2625 Pixels::ZERO,
2626 line_end_overshoot,
2627 layout,
2628 cx,
2629 );
2630 }
2631
2632 let corner_radius = 0.15 * layout.position_map.line_height;
2633
2634 for (player_color, selections) in &layout.selections {
2635 for selection in selections.into_iter() {
2636 self.paint_highlighted_range(
2637 selection.range.clone(),
2638 player_color.selection,
2639 corner_radius,
2640 corner_radius * 2.,
2641 layout,
2642 cx,
2643 );
2644
2645 if selection.is_local && !selection.range.is_empty() {
2646 invisible_display_ranges.push(selection.range.clone());
2647 }
2648 }
2649 }
2650 invisible_display_ranges
2651 })
2652 }
2653
2654 fn paint_lines(
2655 &mut self,
2656 invisible_display_ranges: &[Range<DisplayPoint>],
2657 layout: &EditorLayout,
2658 cx: &mut WindowContext,
2659 ) {
2660 let whitespace_setting = self
2661 .editor
2662 .read(cx)
2663 .buffer
2664 .read(cx)
2665 .settings_at(0, cx)
2666 .show_whitespaces;
2667
2668 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
2669 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
2670 line_with_invisibles.draw(
2671 layout,
2672 row,
2673 layout.content_origin,
2674 whitespace_setting,
2675 invisible_display_ranges,
2676 cx,
2677 )
2678 }
2679 }
2680
2681 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
2682 if layout.redacted_ranges.is_empty() {
2683 return;
2684 }
2685
2686 let line_end_overshoot = layout.line_end_overshoot();
2687
2688 // A softer than perfect black
2689 let redaction_color = gpui::rgb(0x0e1111);
2690
2691 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2692 for range in layout.redacted_ranges.iter() {
2693 self.paint_highlighted_range(
2694 range.clone(),
2695 redaction_color.into(),
2696 Pixels::ZERO,
2697 line_end_overshoot,
2698 layout,
2699 cx,
2700 );
2701 }
2702 });
2703 }
2704
2705 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2706 for cursor in &mut layout.visible_cursors {
2707 cursor.paint(layout.content_origin, cx);
2708 }
2709 }
2710
2711 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2712 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
2713 return;
2714 };
2715
2716 let thumb_bounds = scrollbar_layout.thumb_bounds();
2717 if scrollbar_layout.visible {
2718 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
2719 cx.paint_quad(quad(
2720 scrollbar_layout.hitbox.bounds,
2721 Corners::default(),
2722 cx.theme().colors().scrollbar_track_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_track_border,
2730 ));
2731
2732 let fast_markers =
2733 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
2734 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
2735 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
2736
2737 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
2738 for marker in markers.iter().chain(&fast_markers) {
2739 let mut marker = marker.clone();
2740 marker.bounds.origin += scrollbar_layout.hitbox.origin;
2741 cx.paint_quad(marker);
2742 }
2743
2744 cx.paint_quad(quad(
2745 thumb_bounds,
2746 Corners::default(),
2747 cx.theme().colors().scrollbar_thumb_background,
2748 Edges {
2749 top: Pixels::ZERO,
2750 right: Pixels::ZERO,
2751 bottom: Pixels::ZERO,
2752 left: ScrollbarLayout::BORDER_WIDTH,
2753 },
2754 cx.theme().colors().scrollbar_thumb_border,
2755 ));
2756 });
2757 }
2758
2759 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
2760
2761 let row_height = scrollbar_layout.row_height;
2762 let row_range = scrollbar_layout.visible_row_range.clone();
2763
2764 cx.on_mouse_event({
2765 let editor = self.editor.clone();
2766 let hitbox = scrollbar_layout.hitbox.clone();
2767 let mut mouse_position = cx.mouse_position();
2768 move |event: &MouseMoveEvent, phase, cx| {
2769 if phase == DispatchPhase::Capture {
2770 return;
2771 }
2772
2773 editor.update(cx, |editor, cx| {
2774 if event.pressed_button == Some(MouseButton::Left)
2775 && editor.scroll_manager.is_dragging_scrollbar()
2776 {
2777 let y = mouse_position.y;
2778 let new_y = event.position.y;
2779 if (hitbox.top()..hitbox.bottom()).contains(&y) {
2780 let mut position = editor.scroll_position(cx);
2781 position.y += (new_y - y) / row_height;
2782 if position.y < 0.0 {
2783 position.y = 0.0;
2784 }
2785 editor.set_scroll_position(position, cx);
2786 }
2787
2788 cx.stop_propagation();
2789 } else {
2790 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2791 if hitbox.is_hovered(cx) {
2792 editor.scroll_manager.show_scrollbar(cx);
2793 }
2794 }
2795 mouse_position = event.position;
2796 })
2797 }
2798 });
2799
2800 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
2801 cx.on_mouse_event({
2802 let editor = self.editor.clone();
2803 move |_: &MouseUpEvent, phase, cx| {
2804 if phase == DispatchPhase::Capture {
2805 return;
2806 }
2807
2808 editor.update(cx, |editor, cx| {
2809 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2810 cx.stop_propagation();
2811 });
2812 }
2813 });
2814 } else {
2815 cx.on_mouse_event({
2816 let editor = self.editor.clone();
2817 let hitbox = scrollbar_layout.hitbox.clone();
2818 move |event: &MouseDownEvent, phase, cx| {
2819 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
2820 return;
2821 }
2822
2823 editor.update(cx, |editor, cx| {
2824 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
2825
2826 let y = event.position.y;
2827 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
2828 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
2829 let top_row = center_row
2830 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
2831 let mut position = editor.scroll_position(cx);
2832 position.y = top_row as f32;
2833 editor.set_scroll_position(position, cx);
2834 } else {
2835 editor.scroll_manager.show_scrollbar(cx);
2836 }
2837
2838 cx.stop_propagation();
2839 });
2840 }
2841 });
2842 }
2843 }
2844
2845 fn collect_fast_scrollbar_markers(
2846 &self,
2847 layout: &EditorLayout,
2848 scrollbar_layout: &ScrollbarLayout,
2849 cx: &mut WindowContext,
2850 ) -> Vec<PaintQuad> {
2851 const LIMIT: usize = 100;
2852 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
2853 return vec![];
2854 }
2855 let cursor_ranges = layout
2856 .cursors
2857 .iter()
2858 .map(|(point, color)| ColoredRange {
2859 start: point.row(),
2860 end: point.row(),
2861 color: *color,
2862 })
2863 .collect_vec();
2864 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
2865 }
2866
2867 fn refresh_slow_scrollbar_markers(
2868 &self,
2869 layout: &EditorLayout,
2870 scrollbar_layout: &ScrollbarLayout,
2871 cx: &mut WindowContext,
2872 ) {
2873 self.editor.update(cx, |editor, cx| {
2874 if !editor.is_singleton(cx)
2875 || !editor
2876 .scrollbar_marker_state
2877 .should_refresh(scrollbar_layout.hitbox.size)
2878 {
2879 return;
2880 }
2881
2882 let scrollbar_layout = scrollbar_layout.clone();
2883 let background_highlights = editor.background_highlights.clone();
2884 let snapshot = layout.position_map.snapshot.clone();
2885 let theme = cx.theme().clone();
2886 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
2887
2888 editor.scrollbar_marker_state.dirty = false;
2889 editor.scrollbar_marker_state.pending_refresh =
2890 Some(cx.spawn(|editor, mut cx| async move {
2891 let scrollbar_size = scrollbar_layout.hitbox.size;
2892 let scrollbar_markers = cx
2893 .background_executor()
2894 .spawn(async move {
2895 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
2896 let mut marker_quads = Vec::new();
2897 if scrollbar_settings.git_diff {
2898 let marker_row_ranges = snapshot
2899 .buffer_snapshot
2900 .git_diff_hunks_in_range(
2901 MultiBufferRow::MIN..MultiBufferRow::MAX,
2902 )
2903 .map(|hunk| {
2904 let start_display_row =
2905 MultiBufferPoint::new(hunk.associated_range.start.0, 0)
2906 .to_display_point(&snapshot.display_snapshot)
2907 .row();
2908 let mut end_display_row =
2909 MultiBufferPoint::new(hunk.associated_range.end.0, 0)
2910 .to_display_point(&snapshot.display_snapshot)
2911 .row();
2912 if end_display_row != start_display_row {
2913 end_display_row.0 -= 1;
2914 }
2915 let color = match hunk_status(&hunk) {
2916 DiffHunkStatus::Added => theme.status().created,
2917 DiffHunkStatus::Modified => theme.status().modified,
2918 DiffHunkStatus::Removed => theme.status().deleted,
2919 };
2920 ColoredRange {
2921 start: start_display_row,
2922 end: end_display_row,
2923 color,
2924 }
2925 });
2926
2927 marker_quads.extend(
2928 scrollbar_layout
2929 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
2930 );
2931 }
2932
2933 for (background_highlight_id, (_, background_ranges)) in
2934 background_highlights.iter()
2935 {
2936 let is_search_highlights = *background_highlight_id
2937 == TypeId::of::<BufferSearchHighlights>();
2938 let is_symbol_occurrences = *background_highlight_id
2939 == TypeId::of::<DocumentHighlightRead>()
2940 || *background_highlight_id
2941 == TypeId::of::<DocumentHighlightWrite>();
2942 if (is_search_highlights && scrollbar_settings.search_results)
2943 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
2944 {
2945 let mut color = theme.status().info;
2946 if is_symbol_occurrences {
2947 color.fade_out(0.5);
2948 }
2949 let marker_row_ranges =
2950 background_ranges.into_iter().map(|range| {
2951 let display_start = range
2952 .start
2953 .to_display_point(&snapshot.display_snapshot);
2954 let display_end = range
2955 .end
2956 .to_display_point(&snapshot.display_snapshot);
2957 ColoredRange {
2958 start: display_start.row(),
2959 end: display_end.row(),
2960 color,
2961 }
2962 });
2963 marker_quads.extend(
2964 scrollbar_layout
2965 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
2966 );
2967 }
2968 }
2969
2970 if scrollbar_settings.diagnostics {
2971 let diagnostics = snapshot
2972 .buffer_snapshot
2973 .diagnostics_in_range::<_, Point>(
2974 Point::zero()..max_point,
2975 false,
2976 )
2977 // We want to sort by severity, in order to paint the most severe diagnostics last.
2978 .sorted_by_key(|diagnostic| {
2979 std::cmp::Reverse(diagnostic.diagnostic.severity)
2980 });
2981
2982 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
2983 let start_display = diagnostic
2984 .range
2985 .start
2986 .to_display_point(&snapshot.display_snapshot);
2987 let end_display = diagnostic
2988 .range
2989 .end
2990 .to_display_point(&snapshot.display_snapshot);
2991 let color = match diagnostic.diagnostic.severity {
2992 DiagnosticSeverity::ERROR => theme.status().error,
2993 DiagnosticSeverity::WARNING => theme.status().warning,
2994 DiagnosticSeverity::INFORMATION => theme.status().info,
2995 _ => theme.status().hint,
2996 };
2997 ColoredRange {
2998 start: start_display.row(),
2999 end: end_display.row(),
3000 color,
3001 }
3002 });
3003 marker_quads.extend(
3004 scrollbar_layout
3005 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
3006 );
3007 }
3008
3009 Arc::from(marker_quads)
3010 })
3011 .await;
3012
3013 editor.update(&mut cx, |editor, cx| {
3014 editor.scrollbar_marker_state.markers = scrollbar_markers;
3015 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
3016 editor.scrollbar_marker_state.pending_refresh = None;
3017 cx.notify();
3018 })?;
3019
3020 Ok(())
3021 }));
3022 });
3023 }
3024
3025 #[allow(clippy::too_many_arguments)]
3026 fn paint_highlighted_range(
3027 &self,
3028 range: Range<DisplayPoint>,
3029 color: Hsla,
3030 corner_radius: Pixels,
3031 line_end_overshoot: Pixels,
3032 layout: &EditorLayout,
3033 cx: &mut WindowContext,
3034 ) {
3035 let start_row = layout.visible_display_row_range.start;
3036 let end_row = layout.visible_display_row_range.end;
3037 if range.start != range.end {
3038 let row_range = if range.end.column() == 0 {
3039 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3040 } else {
3041 cmp::max(range.start.row(), start_row)
3042 ..cmp::min(range.end.row().next_row(), end_row)
3043 };
3044
3045 let highlighted_range = HighlightedRange {
3046 color,
3047 line_height: layout.position_map.line_height,
3048 corner_radius,
3049 start_y: layout.content_origin.y
3050 + row_range.start.as_f32() * layout.position_map.line_height
3051 - layout.position_map.scroll_pixel_position.y,
3052 lines: row_range
3053 .iter_rows()
3054 .map(|row| {
3055 let line_layout =
3056 &layout.position_map.line_layouts[row.minus(start_row) as usize].line;
3057 HighlightedRangeLine {
3058 start_x: if row == range.start.row() {
3059 layout.content_origin.x
3060 + line_layout.x_for_index(range.start.column() as usize)
3061 - layout.position_map.scroll_pixel_position.x
3062 } else {
3063 layout.content_origin.x
3064 - layout.position_map.scroll_pixel_position.x
3065 },
3066 end_x: if row == range.end.row() {
3067 layout.content_origin.x
3068 + line_layout.x_for_index(range.end.column() as usize)
3069 - layout.position_map.scroll_pixel_position.x
3070 } else {
3071 layout.content_origin.x + line_layout.width + line_end_overshoot
3072 - layout.position_map.scroll_pixel_position.x
3073 },
3074 }
3075 })
3076 .collect(),
3077 };
3078
3079 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3080 }
3081 }
3082
3083 fn paint_folds(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3084 if layout.folds.is_empty() {
3085 return;
3086 }
3087
3088 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3089 let fold_corner_radius = 0.15 * layout.position_map.line_height;
3090 for mut fold in mem::take(&mut layout.folds) {
3091 fold.hover_element.paint(cx);
3092
3093 let hover_element = fold.hover_element.downcast_mut::<Stateful<Div>>().unwrap();
3094 let fold_background = if hover_element.interactivity().active.unwrap() {
3095 cx.theme().colors().ghost_element_active
3096 } else if hover_element.interactivity().hovered.unwrap() {
3097 cx.theme().colors().ghost_element_hover
3098 } else {
3099 cx.theme().colors().ghost_element_background
3100 };
3101
3102 self.paint_highlighted_range(
3103 fold.display_range.clone(),
3104 fold_background,
3105 fold_corner_radius,
3106 fold_corner_radius * 2.,
3107 layout,
3108 cx,
3109 );
3110 }
3111 })
3112 }
3113
3114 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3115 if let Some(mut inline_blame) = layout.inline_blame.take() {
3116 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3117 inline_blame.paint(cx);
3118 })
3119 }
3120 }
3121
3122 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3123 for mut block in layout.blocks.drain(..) {
3124 block.element.paint(cx);
3125 }
3126 }
3127
3128 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3129 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3130 mouse_context_menu.paint(cx);
3131 }
3132 }
3133
3134 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3135 cx.on_mouse_event({
3136 let position_map = layout.position_map.clone();
3137 let editor = self.editor.clone();
3138 let hitbox = layout.hitbox.clone();
3139 let mut delta = ScrollDelta::default();
3140
3141 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3142 // accidentally turn off their scrolling.
3143 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3144
3145 move |event: &ScrollWheelEvent, phase, cx| {
3146 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3147 delta = delta.coalesce(event.delta);
3148 editor.update(cx, |editor, cx| {
3149 let position_map: &PositionMap = &position_map;
3150
3151 let line_height = position_map.line_height;
3152 let max_glyph_width = position_map.em_width;
3153 let (delta, axis) = match delta {
3154 gpui::ScrollDelta::Pixels(mut pixels) => {
3155 //Trackpad
3156 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3157 (pixels, axis)
3158 }
3159
3160 gpui::ScrollDelta::Lines(lines) => {
3161 //Not trackpad
3162 let pixels =
3163 point(lines.x * max_glyph_width, lines.y * line_height);
3164 (pixels, None)
3165 }
3166 };
3167
3168 let current_scroll_position = position_map.snapshot.scroll_position();
3169 let x = (current_scroll_position.x * max_glyph_width
3170 - (delta.x * scroll_sensitivity))
3171 / max_glyph_width;
3172 let y = (current_scroll_position.y * line_height
3173 - (delta.y * scroll_sensitivity))
3174 / line_height;
3175 let mut scroll_position =
3176 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
3177 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
3178 if forbid_vertical_scroll {
3179 scroll_position.y = current_scroll_position.y;
3180 if scroll_position == current_scroll_position {
3181 return;
3182 }
3183 }
3184 editor.scroll(scroll_position, axis, cx);
3185 cx.stop_propagation();
3186 });
3187 }
3188 }
3189 });
3190 }
3191
3192 fn paint_mouse_listeners(
3193 &mut self,
3194 layout: &EditorLayout,
3195 hovered_hunk: Option<HunkToExpand>,
3196 cx: &mut WindowContext,
3197 ) {
3198 self.paint_scroll_wheel_listener(layout, cx);
3199
3200 cx.on_mouse_event({
3201 let position_map = layout.position_map.clone();
3202 let editor = self.editor.clone();
3203 let text_hitbox = layout.text_hitbox.clone();
3204 let gutter_hitbox = layout.gutter_hitbox.clone();
3205
3206 move |event: &MouseDownEvent, phase, cx| {
3207 if phase == DispatchPhase::Bubble {
3208 match event.button {
3209 MouseButton::Left => editor.update(cx, |editor, cx| {
3210 Self::mouse_left_down(
3211 editor,
3212 event,
3213 hovered_hunk.as_ref(),
3214 &position_map,
3215 &text_hitbox,
3216 &gutter_hitbox,
3217 cx,
3218 );
3219 }),
3220 MouseButton::Right => editor.update(cx, |editor, cx| {
3221 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
3222 }),
3223 MouseButton::Middle => editor.update(cx, |editor, cx| {
3224 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
3225 }),
3226 _ => {}
3227 };
3228 }
3229 }
3230 });
3231
3232 cx.on_mouse_event({
3233 let editor = self.editor.clone();
3234 let position_map = layout.position_map.clone();
3235 let text_hitbox = layout.text_hitbox.clone();
3236
3237 move |event: &MouseUpEvent, phase, cx| {
3238 if phase == DispatchPhase::Bubble {
3239 editor.update(cx, |editor, cx| {
3240 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
3241 });
3242 }
3243 }
3244 });
3245 cx.on_mouse_event({
3246 let position_map = layout.position_map.clone();
3247 let editor = self.editor.clone();
3248 let text_hitbox = layout.text_hitbox.clone();
3249 let gutter_hitbox = layout.gutter_hitbox.clone();
3250
3251 move |event: &MouseMoveEvent, phase, cx| {
3252 if phase == DispatchPhase::Bubble {
3253 editor.update(cx, |editor, cx| {
3254 if event.pressed_button == Some(MouseButton::Left) {
3255 Self::mouse_dragged(
3256 editor,
3257 event,
3258 &position_map,
3259 text_hitbox.bounds,
3260 cx,
3261 )
3262 }
3263
3264 Self::mouse_moved(
3265 editor,
3266 event,
3267 &position_map,
3268 &text_hitbox,
3269 &gutter_hitbox,
3270 cx,
3271 )
3272 });
3273 }
3274 }
3275 });
3276 }
3277
3278 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
3279 bounds.upper_right().x - self.style.scrollbar_width
3280 }
3281
3282 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
3283 let style = &self.style;
3284 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3285 let layout = cx
3286 .text_system()
3287 .shape_line(
3288 SharedString::from(" ".repeat(column)),
3289 font_size,
3290 &[TextRun {
3291 len: column,
3292 font: style.text.font(),
3293 color: Hsla::default(),
3294 background_color: None,
3295 underline: None,
3296 strikethrough: None,
3297 }],
3298 )
3299 .unwrap();
3300
3301 layout.width
3302 }
3303
3304 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
3305 let digit_count = snapshot
3306 .max_buffer_row()
3307 .next_row()
3308 .as_f32()
3309 .log10()
3310 .floor() as usize
3311 + 1;
3312 self.column_pixels(digit_count, cx)
3313 }
3314}
3315
3316fn prepaint_gutter_button(
3317 button: IconButton,
3318 row: DisplayRow,
3319 line_height: Pixels,
3320 gutter_dimensions: &GutterDimensions,
3321 scroll_pixel_position: gpui::Point<Pixels>,
3322 gutter_hitbox: &Hitbox,
3323 cx: &mut WindowContext<'_>,
3324) -> AnyElement {
3325 let mut button = button.into_any_element();
3326 let available_space = size(
3327 AvailableSpace::MinContent,
3328 AvailableSpace::Definite(line_height),
3329 );
3330 let indicator_size = button.layout_as_root(available_space, cx);
3331
3332 let blame_width = gutter_dimensions
3333 .git_blame_entries_width
3334 .unwrap_or(Pixels::ZERO);
3335
3336 let mut x = blame_width;
3337 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
3338 - indicator_size.width
3339 - blame_width;
3340 x += available_width / 2.;
3341
3342 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
3343 y += (line_height - indicator_size.height) / 2.;
3344
3345 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
3346 button
3347}
3348
3349fn render_inline_blame_entry(
3350 blame: &gpui::Model<GitBlame>,
3351 blame_entry: BlameEntry,
3352 style: &EditorStyle,
3353 workspace: Option<WeakView<Workspace>>,
3354 cx: &mut WindowContext<'_>,
3355) -> AnyElement {
3356 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3357
3358 let author = blame_entry.author.as_deref().unwrap_or_default();
3359 let text = format!("{}, {}", author, relative_timestamp);
3360
3361 let details = blame.read(cx).details_for_entry(&blame_entry);
3362
3363 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
3364
3365 h_flex()
3366 .id("inline-blame")
3367 .w_full()
3368 .font_family(style.text.font().family)
3369 .text_color(cx.theme().status().hint)
3370 .line_height(style.text.line_height)
3371 .child(Icon::new(IconName::FileGit).color(Color::Hint))
3372 .child(text)
3373 .gap_2()
3374 .hoverable_tooltip(move |_| tooltip.clone().into())
3375 .into_any()
3376}
3377
3378fn render_blame_entry(
3379 ix: usize,
3380 blame: &gpui::Model<GitBlame>,
3381 blame_entry: BlameEntry,
3382 style: &EditorStyle,
3383 last_used_color: &mut Option<(PlayerColor, Oid)>,
3384 editor: View<Editor>,
3385 cx: &mut WindowContext<'_>,
3386) -> AnyElement {
3387 let mut sha_color = cx
3388 .theme()
3389 .players()
3390 .color_for_participant(blame_entry.sha.into());
3391 // If the last color we used is the same as the one we get for this line, but
3392 // the commit SHAs are different, then we try again to get a different color.
3393 match *last_used_color {
3394 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
3395 let index: u32 = blame_entry.sha.into();
3396 sha_color = cx.theme().players().color_for_participant(index + 1);
3397 }
3398 _ => {}
3399 };
3400 last_used_color.replace((sha_color, blame_entry.sha));
3401
3402 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3403
3404 let short_commit_id = blame_entry.sha.display_short();
3405
3406 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
3407 let name = util::truncate_and_trailoff(author_name, 20);
3408
3409 let details = blame.read(cx).details_for_entry(&blame_entry);
3410
3411 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
3412
3413 let tooltip = cx.new_view(|_| {
3414 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
3415 });
3416
3417 h_flex()
3418 .w_full()
3419 .font_family(style.text.font().family)
3420 .line_height(style.text.line_height)
3421 .id(("blame", ix))
3422 .children([
3423 div()
3424 .text_color(sha_color.cursor)
3425 .child(short_commit_id)
3426 .mr_2(),
3427 div()
3428 .w_full()
3429 .h_flex()
3430 .justify_between()
3431 .text_color(cx.theme().status().hint)
3432 .child(name)
3433 .child(relative_timestamp),
3434 ])
3435 .on_mouse_down(MouseButton::Right, {
3436 let blame_entry = blame_entry.clone();
3437 let details = details.clone();
3438 move |event, cx| {
3439 deploy_blame_entry_context_menu(
3440 &blame_entry,
3441 details.as_ref(),
3442 editor.clone(),
3443 event.position,
3444 cx,
3445 );
3446 }
3447 })
3448 .hover(|style| style.bg(cx.theme().colors().element_hover))
3449 .when_some(
3450 details.and_then(|details| details.permalink),
3451 |this, url| {
3452 let url = url.clone();
3453 this.cursor_pointer().on_click(move |_, cx| {
3454 cx.stop_propagation();
3455 cx.open_url(url.as_str())
3456 })
3457 },
3458 )
3459 .hoverable_tooltip(move |_| tooltip.clone().into())
3460 .into_any()
3461}
3462
3463fn deploy_blame_entry_context_menu(
3464 blame_entry: &BlameEntry,
3465 details: Option<&CommitDetails>,
3466 editor: View<Editor>,
3467 position: gpui::Point<Pixels>,
3468 cx: &mut WindowContext<'_>,
3469) {
3470 let context_menu = ContextMenu::build(cx, move |this, _| {
3471 let sha = format!("{}", blame_entry.sha);
3472 this.entry("Copy commit SHA", None, move |cx| {
3473 cx.write_to_clipboard(ClipboardItem::new(sha.clone()));
3474 })
3475 .when_some(
3476 details.and_then(|details| details.permalink.clone()),
3477 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
3478 )
3479 });
3480
3481 editor.update(cx, move |editor, cx| {
3482 editor.mouse_context_menu = Some(MouseContextMenu::new(position, context_menu, cx));
3483 cx.notify();
3484 });
3485}
3486
3487#[derive(Debug)]
3488pub(crate) struct LineWithInvisibles {
3489 pub line: ShapedLine,
3490 invisibles: Vec<Invisible>,
3491}
3492
3493impl LineWithInvisibles {
3494 fn from_chunks<'a>(
3495 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
3496 text_style: &TextStyle,
3497 max_line_len: usize,
3498 max_line_count: usize,
3499 line_number_layouts: &[Option<ShapedLine>],
3500 editor_mode: EditorMode,
3501 cx: &WindowContext,
3502 ) -> Vec<Self> {
3503 let mut layouts = Vec::with_capacity(max_line_count);
3504 let mut line = String::new();
3505 let mut invisibles = Vec::new();
3506 let mut styles = Vec::new();
3507 let mut non_whitespace_added = false;
3508 let mut row = 0;
3509 let mut line_exceeded_max_len = false;
3510 let font_size = text_style.font_size.to_pixels(cx.rem_size());
3511
3512 for highlighted_chunk in chunks.chain([HighlightedChunk {
3513 chunk: "\n",
3514 style: None,
3515 is_tab: false,
3516 }]) {
3517 for (ix, mut line_chunk) in highlighted_chunk.chunk.split('\n').enumerate() {
3518 if ix > 0 {
3519 let shaped_line = cx
3520 .text_system()
3521 .shape_line(line.clone().into(), font_size, &styles)
3522 .unwrap();
3523 layouts.push(Self {
3524 line: shaped_line,
3525 invisibles: std::mem::take(&mut invisibles),
3526 });
3527
3528 line.clear();
3529 styles.clear();
3530 row += 1;
3531 line_exceeded_max_len = false;
3532 non_whitespace_added = false;
3533 if row == max_line_count {
3534 return layouts;
3535 }
3536 }
3537
3538 if !line_chunk.is_empty() && !line_exceeded_max_len {
3539 let text_style = if let Some(style) = highlighted_chunk.style {
3540 Cow::Owned(text_style.clone().highlight(style))
3541 } else {
3542 Cow::Borrowed(text_style)
3543 };
3544
3545 if line.len() + line_chunk.len() > max_line_len {
3546 let mut chunk_len = max_line_len - line.len();
3547 while !line_chunk.is_char_boundary(chunk_len) {
3548 chunk_len -= 1;
3549 }
3550 line_chunk = &line_chunk[..chunk_len];
3551 line_exceeded_max_len = true;
3552 }
3553
3554 styles.push(TextRun {
3555 len: line_chunk.len(),
3556 font: text_style.font(),
3557 color: text_style.color,
3558 background_color: text_style.background_color,
3559 underline: text_style.underline,
3560 strikethrough: text_style.strikethrough,
3561 });
3562
3563 if editor_mode == EditorMode::Full {
3564 // Line wrap pads its contents with fake whitespaces,
3565 // avoid printing them
3566 let inside_wrapped_string = line_number_layouts
3567 .get(row)
3568 .and_then(|layout| layout.as_ref())
3569 .is_none();
3570 if highlighted_chunk.is_tab {
3571 if non_whitespace_added || !inside_wrapped_string {
3572 invisibles.push(Invisible::Tab {
3573 line_start_offset: line.len(),
3574 });
3575 }
3576 } else {
3577 invisibles.extend(
3578 line_chunk
3579 .chars()
3580 .enumerate()
3581 .filter(|(_, line_char)| {
3582 let is_whitespace = line_char.is_whitespace();
3583 non_whitespace_added |= !is_whitespace;
3584 is_whitespace
3585 && (non_whitespace_added || !inside_wrapped_string)
3586 })
3587 .map(|(whitespace_index, _)| Invisible::Whitespace {
3588 line_offset: line.len() + whitespace_index,
3589 }),
3590 )
3591 }
3592 }
3593
3594 line.push_str(line_chunk);
3595 }
3596 }
3597 }
3598
3599 layouts
3600 }
3601
3602 fn draw(
3603 &self,
3604 layout: &EditorLayout,
3605 row: DisplayRow,
3606 content_origin: gpui::Point<Pixels>,
3607 whitespace_setting: ShowWhitespaceSetting,
3608 selection_ranges: &[Range<DisplayPoint>],
3609 cx: &mut WindowContext,
3610 ) {
3611 let line_height = layout.position_map.line_height;
3612 let line_y = line_height
3613 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
3614
3615 let line_origin =
3616 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
3617 self.line.paint(line_origin, line_height, cx).log_err();
3618
3619 self.draw_invisibles(
3620 &selection_ranges,
3621 layout,
3622 content_origin,
3623 line_y,
3624 row,
3625 line_height,
3626 whitespace_setting,
3627 cx,
3628 );
3629 }
3630
3631 #[allow(clippy::too_many_arguments)]
3632 fn draw_invisibles(
3633 &self,
3634 selection_ranges: &[Range<DisplayPoint>],
3635 layout: &EditorLayout,
3636 content_origin: gpui::Point<Pixels>,
3637 line_y: Pixels,
3638 row: DisplayRow,
3639 line_height: Pixels,
3640 whitespace_setting: ShowWhitespaceSetting,
3641 cx: &mut WindowContext,
3642 ) {
3643 let allowed_invisibles_regions = match whitespace_setting {
3644 ShowWhitespaceSetting::None => return,
3645 ShowWhitespaceSetting::Selection => Some(selection_ranges),
3646 ShowWhitespaceSetting::All => None,
3647 };
3648
3649 for invisible in &self.invisibles {
3650 let (&token_offset, invisible_symbol) = match invisible {
3651 Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
3652 Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
3653 };
3654
3655 let x_offset = self.line.x_for_index(token_offset);
3656 let invisible_offset =
3657 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
3658 let origin = content_origin
3659 + gpui::point(
3660 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
3661 line_y,
3662 );
3663
3664 if let Some(allowed_regions) = allowed_invisibles_regions {
3665 let invisible_point = DisplayPoint::new(row, token_offset as u32);
3666 if !allowed_regions
3667 .iter()
3668 .any(|region| region.start <= invisible_point && invisible_point < region.end)
3669 {
3670 continue;
3671 }
3672 }
3673 invisible_symbol.paint(origin, line_height, cx).log_err();
3674 }
3675 }
3676}
3677
3678#[derive(Debug, Clone, Copy, PartialEq, Eq)]
3679enum Invisible {
3680 Tab { line_start_offset: usize },
3681 Whitespace { line_offset: usize },
3682}
3683
3684impl Element for EditorElement {
3685 type RequestLayoutState = ();
3686 type PrepaintState = EditorLayout;
3687
3688 fn id(&self) -> Option<ElementId> {
3689 None
3690 }
3691
3692 fn request_layout(
3693 &mut self,
3694 _: Option<&GlobalElementId>,
3695 cx: &mut WindowContext,
3696 ) -> (gpui::LayoutId, ()) {
3697 self.editor.update(cx, |editor, cx| {
3698 editor.set_style(self.style.clone(), cx);
3699
3700 let layout_id = match editor.mode {
3701 EditorMode::SingleLine => {
3702 let rem_size = cx.rem_size();
3703 let mut style = Style::default();
3704 style.size.width = relative(1.).into();
3705 style.size.height = self.style.text.line_height_in_pixels(rem_size).into();
3706 cx.request_layout(style, None)
3707 }
3708 EditorMode::AutoHeight { max_lines } => {
3709 let editor_handle = cx.view().clone();
3710 let max_line_number_width =
3711 self.max_line_number_width(&editor.snapshot(cx), cx);
3712 cx.request_measured_layout(
3713 Style::default(),
3714 move |known_dimensions, available_space, cx| {
3715 editor_handle
3716 .update(cx, |editor, cx| {
3717 compute_auto_height_layout(
3718 editor,
3719 max_lines,
3720 max_line_number_width,
3721 known_dimensions,
3722 available_space.width,
3723 cx,
3724 )
3725 })
3726 .unwrap_or_default()
3727 },
3728 )
3729 }
3730 EditorMode::Full => {
3731 let mut style = Style::default();
3732 style.size.width = relative(1.).into();
3733 style.size.height = relative(1.).into();
3734 cx.request_layout(style, None)
3735 }
3736 };
3737
3738 (layout_id, ())
3739 })
3740 }
3741
3742 fn prepaint(
3743 &mut self,
3744 _: Option<&GlobalElementId>,
3745 bounds: Bounds<Pixels>,
3746 _: &mut Self::RequestLayoutState,
3747 cx: &mut WindowContext,
3748 ) -> Self::PrepaintState {
3749 let text_style = TextStyleRefinement {
3750 font_size: Some(self.style.text.font_size),
3751 line_height: Some(self.style.text.line_height),
3752 ..Default::default()
3753 };
3754 cx.set_view_id(self.editor.entity_id());
3755 cx.with_text_style(Some(text_style), |cx| {
3756 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
3757 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
3758 let style = self.style.clone();
3759
3760 let font_id = cx.text_system().resolve_font(&style.text.font());
3761 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3762 let line_height = style.text.line_height_in_pixels(cx.rem_size());
3763 let em_width = cx
3764 .text_system()
3765 .typographic_bounds(font_id, font_size, 'm')
3766 .unwrap()
3767 .size
3768 .width;
3769 let em_advance = cx
3770 .text_system()
3771 .advance(font_id, font_size, 'm')
3772 .unwrap()
3773 .width;
3774
3775 let gutter_dimensions = snapshot.gutter_dimensions(
3776 font_id,
3777 font_size,
3778 em_width,
3779 self.max_line_number_width(&snapshot, cx),
3780 cx,
3781 );
3782 let text_width = bounds.size.width - gutter_dimensions.width;
3783
3784 let right_margin = if snapshot.mode == EditorMode::Full {
3785 EditorElement::SCROLLBAR_WIDTH
3786 } else {
3787 px(0.)
3788 };
3789 let overscroll = size(em_width + right_margin, px(0.));
3790
3791 snapshot = self.editor.update(cx, |editor, cx| {
3792 editor.last_bounds = Some(bounds);
3793 editor.gutter_dimensions = gutter_dimensions;
3794 editor.set_visible_line_count(bounds.size.height / line_height, cx);
3795
3796 let editor_width =
3797 text_width - gutter_dimensions.margin - overscroll.width - em_width;
3798 let wrap_width = match editor.soft_wrap_mode(cx) {
3799 SoftWrap::None => None,
3800 SoftWrap::PreferLine => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
3801 SoftWrap::EditorWidth => Some(editor_width),
3802 SoftWrap::Column(column) => {
3803 Some(editor_width.min(column as f32 * em_advance))
3804 }
3805 };
3806
3807 if editor.set_wrap_width(wrap_width, cx) {
3808 editor.snapshot(cx)
3809 } else {
3810 snapshot
3811 }
3812 });
3813
3814 let wrap_guides = self
3815 .editor
3816 .read(cx)
3817 .wrap_guides(cx)
3818 .iter()
3819 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
3820 .collect::<SmallVec<[_; 2]>>();
3821
3822 let hitbox = cx.insert_hitbox(bounds, false);
3823 let gutter_hitbox = cx.insert_hitbox(
3824 Bounds {
3825 origin: bounds.origin,
3826 size: size(gutter_dimensions.width, bounds.size.height),
3827 },
3828 false,
3829 );
3830 let text_hitbox = cx.insert_hitbox(
3831 Bounds {
3832 origin: gutter_hitbox.upper_right(),
3833 size: size(text_width, bounds.size.height),
3834 },
3835 false,
3836 );
3837 // Offset the content_bounds from the text_bounds by the gutter margin (which
3838 // is roughly half a character wide) to make hit testing work more like how we want.
3839 let content_origin =
3840 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
3841
3842 let mut autoscroll_containing_element = false;
3843 let mut autoscroll_horizontally = false;
3844 self.editor.update(cx, |editor, cx| {
3845 autoscroll_containing_element =
3846 editor.autoscroll_requested() || editor.has_pending_selection();
3847 autoscroll_horizontally = editor.autoscroll_vertically(bounds, line_height, cx);
3848 snapshot = editor.snapshot(cx);
3849 });
3850
3851 let mut scroll_position = snapshot.scroll_position();
3852 // The scroll position is a fractional point, the whole number of which represents
3853 // the top of the window in terms of display rows.
3854 let start_row = DisplayRow(scroll_position.y as u32);
3855 let height_in_lines = bounds.size.height / line_height;
3856 let max_row = snapshot.max_point().row();
3857 let end_row = cmp::min(
3858 (scroll_position.y + height_in_lines).ceil() as u32,
3859 max_row.next_row().0,
3860 );
3861 let end_row = DisplayRow(end_row);
3862
3863 let buffer_rows = snapshot
3864 .display_rows(start_row)
3865 .take((start_row..end_row).len());
3866
3867 let start_anchor = if start_row == Default::default() {
3868 Anchor::min()
3869 } else {
3870 snapshot.buffer_snapshot.anchor_before(
3871 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
3872 )
3873 };
3874 let end_anchor = if end_row > max_row {
3875 Anchor::max()
3876 } else {
3877 snapshot.buffer_snapshot.anchor_before(
3878 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
3879 )
3880 };
3881
3882 let highlighted_rows = self.editor.update(cx, |editor, cx| {
3883 editor.highlighted_display_rows(HashSet::default(), cx)
3884 });
3885 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
3886 start_anchor..end_anchor,
3887 &snapshot.display_snapshot,
3888 cx.theme().colors(),
3889 );
3890
3891 let redacted_ranges = self.editor.read(cx).redacted_ranges(
3892 start_anchor..end_anchor,
3893 &snapshot.display_snapshot,
3894 cx,
3895 );
3896
3897 let (selections, active_rows, newest_selection_head) = self.layout_selections(
3898 start_anchor,
3899 end_anchor,
3900 &snapshot,
3901 start_row,
3902 end_row,
3903 cx,
3904 );
3905
3906 let (line_numbers, fold_statuses) = self.layout_line_numbers(
3907 start_row..end_row,
3908 buffer_rows.clone(),
3909 &active_rows,
3910 newest_selection_head,
3911 &snapshot,
3912 cx,
3913 );
3914
3915 let display_hunks = self.layout_git_gutters(
3916 line_height,
3917 &gutter_hitbox,
3918 start_row..end_row,
3919 &snapshot,
3920 cx,
3921 );
3922
3923 let mut max_visible_line_width = Pixels::ZERO;
3924 let line_layouts =
3925 self.layout_lines(start_row..end_row, &line_numbers, &snapshot, cx);
3926 for line_with_invisibles in &line_layouts {
3927 if line_with_invisibles.line.width > max_visible_line_width {
3928 max_visible_line_width = line_with_invisibles.line.width;
3929 }
3930 }
3931
3932 let longest_line_width = layout_line(snapshot.longest_row(), &snapshot, &style, cx)
3933 .unwrap()
3934 .width;
3935 let mut scroll_width =
3936 longest_line_width.max(max_visible_line_width) + overscroll.width;
3937
3938 let mut blocks = cx.with_element_namespace("blocks", |cx| {
3939 self.build_blocks(
3940 start_row..end_row,
3941 &snapshot,
3942 &hitbox,
3943 &text_hitbox,
3944 &mut scroll_width,
3945 &gutter_dimensions,
3946 em_width,
3947 gutter_dimensions.width + gutter_dimensions.margin,
3948 line_height,
3949 &line_layouts,
3950 cx,
3951 )
3952 });
3953
3954 let scroll_pixel_position = point(
3955 scroll_position.x * em_width,
3956 scroll_position.y * line_height,
3957 );
3958
3959 let mut inline_blame = None;
3960 if let Some(newest_selection_head) = newest_selection_head {
3961 let display_row = newest_selection_head.row();
3962 if (start_row..end_row).contains(&display_row) {
3963 let line_layout = &line_layouts[display_row.minus(start_row) as usize];
3964 inline_blame = self.layout_inline_blame(
3965 display_row,
3966 &snapshot.display_snapshot,
3967 line_layout,
3968 em_width,
3969 content_origin,
3970 scroll_pixel_position,
3971 line_height,
3972 cx,
3973 );
3974 }
3975 }
3976
3977 let blamed_display_rows = self.layout_blame_entries(
3978 buffer_rows.map(|display_row| {
3979 display_row.map(|row| {
3980 MultiBufferRow(DisplayPoint::new(row, 0).to_point(&snapshot).row)
3981 })
3982 }),
3983 em_width,
3984 scroll_position,
3985 line_height,
3986 &gutter_hitbox,
3987 gutter_dimensions.git_blame_entries_width,
3988 cx,
3989 );
3990
3991 let scroll_max = point(
3992 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
3993 max_row.as_f32(),
3994 );
3995
3996 self.editor.update(cx, |editor, cx| {
3997 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
3998
3999 let autoscrolled = if autoscroll_horizontally {
4000 editor.autoscroll_horizontally(
4001 start_row,
4002 text_hitbox.size.width,
4003 scroll_width,
4004 em_width,
4005 &line_layouts,
4006 cx,
4007 )
4008 } else {
4009 false
4010 };
4011
4012 if clamped || autoscrolled {
4013 snapshot = editor.snapshot(cx);
4014 scroll_position = snapshot.scroll_position();
4015 }
4016 });
4017
4018 cx.with_element_namespace("blocks", |cx| {
4019 self.layout_blocks(
4020 &mut blocks,
4021 &hitbox,
4022 line_height,
4023 scroll_pixel_position,
4024 cx,
4025 );
4026 });
4027
4028 let cursors = self.collect_cursors(&snapshot, cx);
4029 let visible_row_range = start_row..end_row;
4030 let non_visible_cursors = cursors
4031 .iter()
4032 .any(move |c| !visible_row_range.contains(&c.0.row()));
4033
4034 let visible_cursors = self.layout_visible_cursors(
4035 &snapshot,
4036 &selections,
4037 start_row..end_row,
4038 &line_layouts,
4039 &text_hitbox,
4040 content_origin,
4041 scroll_position,
4042 scroll_pixel_position,
4043 line_height,
4044 em_width,
4045 autoscroll_containing_element,
4046 cx,
4047 );
4048
4049 let scrollbar_layout = self.layout_scrollbar(
4050 &snapshot,
4051 bounds,
4052 scroll_position,
4053 height_in_lines,
4054 non_visible_cursors,
4055 cx,
4056 );
4057
4058 let folds = cx.with_element_namespace("folds", |cx| {
4059 self.layout_folds(
4060 &snapshot,
4061 content_origin,
4062 start_anchor..end_anchor,
4063 start_row..end_row,
4064 scroll_pixel_position,
4065 line_height,
4066 &line_layouts,
4067 cx,
4068 )
4069 });
4070
4071 let gutter_settings = EditorSettings::get_global(cx).gutter;
4072
4073 let mut context_menu_visible = false;
4074 let mut code_actions_indicator = None;
4075 if let Some(newest_selection_head) = newest_selection_head {
4076 if (start_row..end_row).contains(&newest_selection_head.row()) {
4077 context_menu_visible = self.layout_context_menu(
4078 line_height,
4079 &hitbox,
4080 &text_hitbox,
4081 content_origin,
4082 start_row,
4083 scroll_pixel_position,
4084 &line_layouts,
4085 newest_selection_head,
4086 gutter_dimensions.width - gutter_dimensions.left_padding,
4087 cx,
4088 );
4089 if gutter_settings.code_actions {
4090 let newest_selection_point =
4091 newest_selection_head.to_point(&snapshot.display_snapshot);
4092 let buffer = snapshot
4093 .buffer_snapshot
4094 .buffer_line_for_row(MultiBufferRow(newest_selection_point.row));
4095 if let Some((buffer, range)) = buffer {
4096 let buffer_id = buffer.remote_id();
4097 let row = range.start.row;
4098 let has_test_indicator =
4099 self.editor.read(cx).tasks.contains_key(&(buffer_id, row));
4100
4101 if !has_test_indicator {
4102 code_actions_indicator = self.layout_code_actions_indicator(
4103 line_height,
4104 newest_selection_head,
4105 scroll_pixel_position,
4106 &gutter_dimensions,
4107 &gutter_hitbox,
4108 cx,
4109 );
4110 }
4111 }
4112 }
4113 }
4114 }
4115
4116 let test_indicators = self.layout_run_indicators(
4117 line_height,
4118 scroll_pixel_position,
4119 &gutter_dimensions,
4120 &gutter_hitbox,
4121 &snapshot,
4122 cx,
4123 );
4124
4125 if !context_menu_visible && !cx.has_active_drag() {
4126 self.layout_hover_popovers(
4127 &snapshot,
4128 &hitbox,
4129 &text_hitbox,
4130 start_row..end_row,
4131 content_origin,
4132 scroll_pixel_position,
4133 &line_layouts,
4134 line_height,
4135 em_width,
4136 cx,
4137 );
4138 }
4139
4140 let mouse_context_menu = self.layout_mouse_context_menu(cx);
4141
4142 let fold_indicators = if gutter_settings.folds {
4143 cx.with_element_namespace("gutter_fold_indicators", |cx| {
4144 self.layout_gutter_fold_indicators(
4145 fold_statuses,
4146 line_height,
4147 &gutter_dimensions,
4148 gutter_settings,
4149 scroll_pixel_position,
4150 &gutter_hitbox,
4151 cx,
4152 )
4153 })
4154 } else {
4155 Vec::new()
4156 };
4157
4158 let invisible_symbol_font_size = font_size / 2.;
4159 let tab_invisible = cx
4160 .text_system()
4161 .shape_line(
4162 "→".into(),
4163 invisible_symbol_font_size,
4164 &[TextRun {
4165 len: "→".len(),
4166 font: self.style.text.font(),
4167 color: cx.theme().colors().editor_invisible,
4168 background_color: None,
4169 underline: None,
4170 strikethrough: None,
4171 }],
4172 )
4173 .unwrap();
4174 let space_invisible = cx
4175 .text_system()
4176 .shape_line(
4177 "•".into(),
4178 invisible_symbol_font_size,
4179 &[TextRun {
4180 len: "•".len(),
4181 font: self.style.text.font(),
4182 color: cx.theme().colors().editor_invisible,
4183 background_color: None,
4184 underline: None,
4185 strikethrough: None,
4186 }],
4187 )
4188 .unwrap();
4189
4190 EditorLayout {
4191 mode: snapshot.mode,
4192 position_map: Arc::new(PositionMap {
4193 size: bounds.size,
4194 scroll_pixel_position,
4195 scroll_max,
4196 line_layouts,
4197 line_height,
4198 em_width,
4199 em_advance,
4200 snapshot,
4201 }),
4202 visible_display_row_range: start_row..end_row,
4203 wrap_guides,
4204 hitbox,
4205 text_hitbox,
4206 gutter_hitbox,
4207 gutter_dimensions,
4208 content_origin,
4209 scrollbar_layout,
4210 active_rows,
4211 highlighted_rows,
4212 highlighted_ranges,
4213 redacted_ranges,
4214 line_numbers,
4215 display_hunks,
4216 blamed_display_rows,
4217 inline_blame,
4218 folds,
4219 blocks,
4220 cursors,
4221 visible_cursors,
4222 selections,
4223 mouse_context_menu,
4224 test_indicators,
4225 code_actions_indicator,
4226 fold_indicators,
4227 tab_invisible,
4228 space_invisible,
4229 }
4230 })
4231 })
4232 }
4233
4234 fn paint(
4235 &mut self,
4236 _: Option<&GlobalElementId>,
4237 bounds: Bounds<gpui::Pixels>,
4238 _: &mut Self::RequestLayoutState,
4239 layout: &mut Self::PrepaintState,
4240 cx: &mut WindowContext,
4241 ) {
4242 let focus_handle = self.editor.focus_handle(cx);
4243 let key_context = self.editor.read(cx).key_context(cx);
4244 cx.set_focus_handle(&focus_handle);
4245 cx.set_key_context(key_context);
4246 cx.handle_input(
4247 &focus_handle,
4248 ElementInputHandler::new(bounds, self.editor.clone()),
4249 );
4250 self.register_actions(cx);
4251 self.register_key_listeners(cx, layout);
4252
4253 let text_style = TextStyleRefinement {
4254 font_size: Some(self.style.text.font_size),
4255 line_height: Some(self.style.text.line_height),
4256 ..Default::default()
4257 };
4258 let mouse_position = cx.mouse_position();
4259 let hovered_hunk = layout
4260 .display_hunks
4261 .iter()
4262 .find_map(|(hunk, hunk_hitbox)| match hunk {
4263 DisplayDiffHunk::Folded { .. } => None,
4264 DisplayDiffHunk::Unfolded {
4265 diff_base_byte_range,
4266 multi_buffer_range,
4267 status,
4268 ..
4269 } => {
4270 if hunk_hitbox
4271 .as_ref()
4272 .map(|hitbox| hitbox.contains(&mouse_position))
4273 .unwrap_or(false)
4274 {
4275 Some(HunkToExpand {
4276 status: *status,
4277 multi_buffer_range: multi_buffer_range.clone(),
4278 diff_base_byte_range: diff_base_byte_range.clone(),
4279 })
4280 } else {
4281 None
4282 }
4283 }
4284 });
4285 cx.with_text_style(Some(text_style), |cx| {
4286 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
4287 self.paint_mouse_listeners(layout, hovered_hunk, cx);
4288 self.paint_background(layout, cx);
4289 if layout.gutter_hitbox.size.width > Pixels::ZERO {
4290 self.paint_gutter(layout, cx)
4291 }
4292
4293 self.paint_text(layout, cx);
4294
4295 if !layout.blocks.is_empty() {
4296 cx.with_element_namespace("blocks", |cx| {
4297 self.paint_blocks(layout, cx);
4298 });
4299 }
4300
4301 self.paint_scrollbar(layout, cx);
4302 self.paint_mouse_context_menu(layout, cx);
4303 });
4304 })
4305 }
4306}
4307
4308impl IntoElement for EditorElement {
4309 type Element = Self;
4310
4311 fn into_element(self) -> Self::Element {
4312 self
4313 }
4314}
4315
4316pub struct EditorLayout {
4317 position_map: Arc<PositionMap>,
4318 hitbox: Hitbox,
4319 text_hitbox: Hitbox,
4320 gutter_hitbox: Hitbox,
4321 gutter_dimensions: GutterDimensions,
4322 content_origin: gpui::Point<Pixels>,
4323 scrollbar_layout: Option<ScrollbarLayout>,
4324 mode: EditorMode,
4325 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
4326 visible_display_row_range: Range<DisplayRow>,
4327 active_rows: BTreeMap<DisplayRow, bool>,
4328 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
4329 line_numbers: Vec<Option<ShapedLine>>,
4330 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
4331 blamed_display_rows: Option<Vec<AnyElement>>,
4332 inline_blame: Option<AnyElement>,
4333 folds: Vec<FoldLayout>,
4334 blocks: Vec<BlockLayout>,
4335 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
4336 redacted_ranges: Vec<Range<DisplayPoint>>,
4337 cursors: Vec<(DisplayPoint, Hsla)>,
4338 visible_cursors: Vec<CursorLayout>,
4339 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
4340 code_actions_indicator: Option<AnyElement>,
4341 test_indicators: Vec<AnyElement>,
4342 fold_indicators: Vec<Option<AnyElement>>,
4343 mouse_context_menu: Option<AnyElement>,
4344 tab_invisible: ShapedLine,
4345 space_invisible: ShapedLine,
4346}
4347
4348impl EditorLayout {
4349 fn line_end_overshoot(&self) -> Pixels {
4350 0.15 * self.position_map.line_height
4351 }
4352}
4353
4354struct ColoredRange<T> {
4355 start: T,
4356 end: T,
4357 color: Hsla,
4358}
4359
4360#[derive(Clone)]
4361struct ScrollbarLayout {
4362 hitbox: Hitbox,
4363 visible_row_range: Range<f32>,
4364 visible: bool,
4365 row_height: Pixels,
4366 thumb_height: Pixels,
4367}
4368
4369impl ScrollbarLayout {
4370 const BORDER_WIDTH: Pixels = px(1.0);
4371 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
4372 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
4373 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
4374
4375 fn thumb_bounds(&self) -> Bounds<Pixels> {
4376 let thumb_top = self.y_for_row(self.visible_row_range.start);
4377 let thumb_bottom = thumb_top + self.thumb_height;
4378 Bounds::from_corners(
4379 point(self.hitbox.left(), thumb_top),
4380 point(self.hitbox.right(), thumb_bottom),
4381 )
4382 }
4383
4384 fn y_for_row(&self, row: f32) -> Pixels {
4385 self.hitbox.top() + row * self.row_height
4386 }
4387
4388 fn marker_quads_for_ranges(
4389 &self,
4390 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
4391 column: Option<usize>,
4392 ) -> Vec<PaintQuad> {
4393 struct MinMax {
4394 min: Pixels,
4395 max: Pixels,
4396 }
4397 let (x_range, height_limit) = if let Some(column) = column {
4398 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
4399 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
4400 let end = start + column_width;
4401 (
4402 Range { start, end },
4403 MinMax {
4404 min: Self::MIN_MARKER_HEIGHT,
4405 max: px(f32::MAX),
4406 },
4407 )
4408 } else {
4409 (
4410 Range {
4411 start: Self::BORDER_WIDTH,
4412 end: self.hitbox.size.width,
4413 },
4414 MinMax {
4415 min: Self::LINE_MARKER_HEIGHT,
4416 max: Self::LINE_MARKER_HEIGHT,
4417 },
4418 )
4419 };
4420
4421 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
4422 let mut pixel_ranges = row_ranges
4423 .into_iter()
4424 .map(|range| {
4425 let start_y = row_to_y(range.start);
4426 let end_y = row_to_y(range.end)
4427 + self.row_height.max(height_limit.min).min(height_limit.max);
4428 ColoredRange {
4429 start: start_y,
4430 end: end_y,
4431 color: range.color,
4432 }
4433 })
4434 .peekable();
4435
4436 let mut quads = Vec::new();
4437 while let Some(mut pixel_range) = pixel_ranges.next() {
4438 while let Some(next_pixel_range) = pixel_ranges.peek() {
4439 if pixel_range.end >= next_pixel_range.start - px(1.0)
4440 && pixel_range.color == next_pixel_range.color
4441 {
4442 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
4443 pixel_ranges.next();
4444 } else {
4445 break;
4446 }
4447 }
4448
4449 let bounds = Bounds::from_corners(
4450 point(x_range.start, pixel_range.start),
4451 point(x_range.end, pixel_range.end),
4452 );
4453 quads.push(quad(
4454 bounds,
4455 Corners::default(),
4456 pixel_range.color,
4457 Edges::default(),
4458 Hsla::transparent_black(),
4459 ));
4460 }
4461
4462 quads
4463 }
4464}
4465
4466struct FoldLayout {
4467 display_range: Range<DisplayPoint>,
4468 hover_element: AnyElement,
4469}
4470
4471struct PositionMap {
4472 size: Size<Pixels>,
4473 line_height: Pixels,
4474 scroll_pixel_position: gpui::Point<Pixels>,
4475 scroll_max: gpui::Point<f32>,
4476 em_width: Pixels,
4477 em_advance: Pixels,
4478 line_layouts: Vec<LineWithInvisibles>,
4479 snapshot: EditorSnapshot,
4480}
4481
4482#[derive(Debug, Copy, Clone)]
4483pub struct PointForPosition {
4484 pub previous_valid: DisplayPoint,
4485 pub next_valid: DisplayPoint,
4486 pub exact_unclipped: DisplayPoint,
4487 pub column_overshoot_after_line_end: u32,
4488}
4489
4490impl PointForPosition {
4491 pub fn as_valid(&self) -> Option<DisplayPoint> {
4492 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
4493 Some(self.previous_valid)
4494 } else {
4495 None
4496 }
4497 }
4498}
4499
4500impl PositionMap {
4501 fn point_for_position(
4502 &self,
4503 text_bounds: Bounds<Pixels>,
4504 position: gpui::Point<Pixels>,
4505 ) -> PointForPosition {
4506 let scroll_position = self.snapshot.scroll_position();
4507 let position = position - text_bounds.origin;
4508 let y = position.y.max(px(0.)).min(self.size.height);
4509 let x = position.x + (scroll_position.x * self.em_width);
4510 let row = ((y / self.line_height) + scroll_position.y) as u32;
4511
4512 let (column, x_overshoot_after_line_end) = if let Some(line) = self
4513 .line_layouts
4514 .get(row as usize - scroll_position.y as usize)
4515 .map(|LineWithInvisibles { line, .. }| line)
4516 {
4517 if let Some(ix) = line.index_for_x(x) {
4518 (ix as u32, px(0.))
4519 } else {
4520 (line.len as u32, px(0.).max(x - line.width))
4521 }
4522 } else {
4523 (0, x)
4524 };
4525
4526 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
4527 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
4528 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
4529
4530 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
4531 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
4532 PointForPosition {
4533 previous_valid,
4534 next_valid,
4535 exact_unclipped,
4536 column_overshoot_after_line_end,
4537 }
4538 }
4539}
4540
4541struct BlockLayout {
4542 row: DisplayRow,
4543 element: AnyElement,
4544 available_space: Size<AvailableSpace>,
4545 style: BlockStyle,
4546}
4547
4548fn layout_line(
4549 row: DisplayRow,
4550 snapshot: &EditorSnapshot,
4551 style: &EditorStyle,
4552 cx: &WindowContext,
4553) -> Result<ShapedLine> {
4554 let mut line = snapshot.line(row);
4555
4556 let len = {
4557 let line_len = line.len();
4558 if line_len > MAX_LINE_LEN {
4559 let mut len = MAX_LINE_LEN;
4560 while !line.is_char_boundary(len) {
4561 len -= 1;
4562 }
4563
4564 line.truncate(len);
4565 len
4566 } else {
4567 line_len
4568 }
4569 };
4570
4571 cx.text_system().shape_line(
4572 line.into(),
4573 style.text.font_size.to_pixels(cx.rem_size()),
4574 &[TextRun {
4575 len,
4576 font: style.text.font(),
4577 color: Hsla::default(),
4578 background_color: None,
4579 underline: None,
4580 strikethrough: None,
4581 }],
4582 )
4583}
4584
4585pub struct CursorLayout {
4586 origin: gpui::Point<Pixels>,
4587 block_width: Pixels,
4588 line_height: Pixels,
4589 color: Hsla,
4590 shape: CursorShape,
4591 block_text: Option<ShapedLine>,
4592 cursor_name: Option<AnyElement>,
4593}
4594
4595#[derive(Debug)]
4596pub struct CursorName {
4597 string: SharedString,
4598 color: Hsla,
4599 is_top_row: bool,
4600}
4601
4602impl CursorLayout {
4603 pub fn new(
4604 origin: gpui::Point<Pixels>,
4605 block_width: Pixels,
4606 line_height: Pixels,
4607 color: Hsla,
4608 shape: CursorShape,
4609 block_text: Option<ShapedLine>,
4610 ) -> CursorLayout {
4611 CursorLayout {
4612 origin,
4613 block_width,
4614 line_height,
4615 color,
4616 shape,
4617 block_text,
4618 cursor_name: None,
4619 }
4620 }
4621
4622 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4623 Bounds {
4624 origin: self.origin + origin,
4625 size: size(self.block_width, self.line_height),
4626 }
4627 }
4628
4629 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4630 match self.shape {
4631 CursorShape::Bar => Bounds {
4632 origin: self.origin + origin,
4633 size: size(px(2.0), self.line_height),
4634 },
4635 CursorShape::Block | CursorShape::Hollow => Bounds {
4636 origin: self.origin + origin,
4637 size: size(self.block_width, self.line_height),
4638 },
4639 CursorShape::Underscore => Bounds {
4640 origin: self.origin
4641 + origin
4642 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
4643 size: size(self.block_width, px(2.0)),
4644 },
4645 }
4646 }
4647
4648 pub fn layout(
4649 &mut self,
4650 origin: gpui::Point<Pixels>,
4651 cursor_name: Option<CursorName>,
4652 cx: &mut WindowContext,
4653 ) {
4654 if let Some(cursor_name) = cursor_name {
4655 let bounds = self.bounds(origin);
4656 let text_size = self.line_height / 1.5;
4657
4658 let name_origin = if cursor_name.is_top_row {
4659 point(bounds.right() - px(1.), bounds.top())
4660 } else {
4661 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
4662 };
4663 let mut name_element = div()
4664 .bg(self.color)
4665 .text_size(text_size)
4666 .px_0p5()
4667 .line_height(text_size + px(2.))
4668 .text_color(cursor_name.color)
4669 .child(cursor_name.string.clone())
4670 .into_any_element();
4671
4672 name_element.prepaint_as_root(
4673 name_origin,
4674 size(AvailableSpace::MinContent, AvailableSpace::MinContent),
4675 cx,
4676 );
4677
4678 self.cursor_name = Some(name_element);
4679 }
4680 }
4681
4682 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
4683 let bounds = self.bounds(origin);
4684
4685 //Draw background or border quad
4686 let cursor = if matches!(self.shape, CursorShape::Hollow) {
4687 outline(bounds, self.color)
4688 } else {
4689 fill(bounds, self.color)
4690 };
4691
4692 if let Some(name) = &mut self.cursor_name {
4693 name.paint(cx);
4694 }
4695
4696 cx.paint_quad(cursor);
4697
4698 if let Some(block_text) = &self.block_text {
4699 block_text
4700 .paint(self.origin + origin, self.line_height, cx)
4701 .log_err();
4702 }
4703 }
4704
4705 pub fn shape(&self) -> CursorShape {
4706 self.shape
4707 }
4708}
4709
4710#[derive(Debug)]
4711pub struct HighlightedRange {
4712 pub start_y: Pixels,
4713 pub line_height: Pixels,
4714 pub lines: Vec<HighlightedRangeLine>,
4715 pub color: Hsla,
4716 pub corner_radius: Pixels,
4717}
4718
4719#[derive(Debug)]
4720pub struct HighlightedRangeLine {
4721 pub start_x: Pixels,
4722 pub end_x: Pixels,
4723}
4724
4725impl HighlightedRange {
4726 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
4727 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
4728 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
4729 self.paint_lines(
4730 self.start_y + self.line_height,
4731 &self.lines[1..],
4732 bounds,
4733 cx,
4734 );
4735 } else {
4736 self.paint_lines(self.start_y, &self.lines, bounds, cx);
4737 }
4738 }
4739
4740 fn paint_lines(
4741 &self,
4742 start_y: Pixels,
4743 lines: &[HighlightedRangeLine],
4744 _bounds: Bounds<Pixels>,
4745 cx: &mut WindowContext,
4746 ) {
4747 if lines.is_empty() {
4748 return;
4749 }
4750
4751 let first_line = lines.first().unwrap();
4752 let last_line = lines.last().unwrap();
4753
4754 let first_top_left = point(first_line.start_x, start_y);
4755 let first_top_right = point(first_line.end_x, start_y);
4756
4757 let curve_height = point(Pixels::ZERO, self.corner_radius);
4758 let curve_width = |start_x: Pixels, end_x: Pixels| {
4759 let max = (end_x - start_x) / 2.;
4760 let width = if max < self.corner_radius {
4761 max
4762 } else {
4763 self.corner_radius
4764 };
4765
4766 point(width, Pixels::ZERO)
4767 };
4768
4769 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
4770 let mut path = gpui::Path::new(first_top_right - top_curve_width);
4771 path.curve_to(first_top_right + curve_height, first_top_right);
4772
4773 let mut iter = lines.iter().enumerate().peekable();
4774 while let Some((ix, line)) = iter.next() {
4775 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
4776
4777 if let Some((_, next_line)) = iter.peek() {
4778 let next_top_right = point(next_line.end_x, bottom_right.y);
4779
4780 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
4781 Ordering::Equal => {
4782 path.line_to(bottom_right);
4783 }
4784 Ordering::Less => {
4785 let curve_width = curve_width(next_top_right.x, bottom_right.x);
4786 path.line_to(bottom_right - curve_height);
4787 if self.corner_radius > Pixels::ZERO {
4788 path.curve_to(bottom_right - curve_width, bottom_right);
4789 }
4790 path.line_to(next_top_right + curve_width);
4791 if self.corner_radius > Pixels::ZERO {
4792 path.curve_to(next_top_right + curve_height, next_top_right);
4793 }
4794 }
4795 Ordering::Greater => {
4796 let curve_width = curve_width(bottom_right.x, next_top_right.x);
4797 path.line_to(bottom_right - curve_height);
4798 if self.corner_radius > Pixels::ZERO {
4799 path.curve_to(bottom_right + curve_width, bottom_right);
4800 }
4801 path.line_to(next_top_right - curve_width);
4802 if self.corner_radius > Pixels::ZERO {
4803 path.curve_to(next_top_right + curve_height, next_top_right);
4804 }
4805 }
4806 }
4807 } else {
4808 let curve_width = curve_width(line.start_x, line.end_x);
4809 path.line_to(bottom_right - curve_height);
4810 if self.corner_radius > Pixels::ZERO {
4811 path.curve_to(bottom_right - curve_width, bottom_right);
4812 }
4813
4814 let bottom_left = point(line.start_x, bottom_right.y);
4815 path.line_to(bottom_left + curve_width);
4816 if self.corner_radius > Pixels::ZERO {
4817 path.curve_to(bottom_left - curve_height, bottom_left);
4818 }
4819 }
4820 }
4821
4822 if first_line.start_x > last_line.start_x {
4823 let curve_width = curve_width(last_line.start_x, first_line.start_x);
4824 let second_top_left = point(last_line.start_x, start_y + self.line_height);
4825 path.line_to(second_top_left + curve_height);
4826 if self.corner_radius > Pixels::ZERO {
4827 path.curve_to(second_top_left + curve_width, second_top_left);
4828 }
4829 let first_bottom_left = point(first_line.start_x, second_top_left.y);
4830 path.line_to(first_bottom_left - curve_width);
4831 if self.corner_radius > Pixels::ZERO {
4832 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
4833 }
4834 }
4835
4836 path.line_to(first_top_left + curve_height);
4837 if self.corner_radius > Pixels::ZERO {
4838 path.curve_to(first_top_left + top_curve_width, first_top_left);
4839 }
4840 path.line_to(first_top_right - top_curve_width);
4841
4842 cx.paint_path(path, self.color);
4843 }
4844}
4845
4846pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4847 (delta.pow(1.5) / 100.0).into()
4848}
4849
4850fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4851 (delta.pow(1.2) / 300.0).into()
4852}
4853
4854#[cfg(test)]
4855mod tests {
4856 use super::*;
4857 use crate::{
4858 display_map::{BlockDisposition, BlockProperties},
4859 editor_tests::{init_test, update_test_language_settings},
4860 Editor, MultiBuffer,
4861 };
4862 use gpui::{TestAppContext, VisualTestContext};
4863 use language::language_settings;
4864 use log::info;
4865 use std::num::NonZeroU32;
4866 use ui::Context;
4867 use util::test::sample_text;
4868
4869 #[gpui::test]
4870 fn test_shape_line_numbers(cx: &mut TestAppContext) {
4871 init_test(cx, |_| {});
4872 let window = cx.add_window(|cx| {
4873 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
4874 Editor::new(EditorMode::Full, buffer, None, cx)
4875 });
4876
4877 let editor = window.root(cx).unwrap();
4878 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4879 let element = EditorElement::new(&editor, style);
4880 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
4881
4882 let layouts = cx
4883 .update_window(*window, |_, cx| {
4884 element
4885 .layout_line_numbers(
4886 DisplayRow(0)..DisplayRow(6),
4887 (0..6).map(DisplayRow).map(Some),
4888 &Default::default(),
4889 Some(DisplayPoint::new(DisplayRow(0), 0)),
4890 &snapshot,
4891 cx,
4892 )
4893 .0
4894 })
4895 .unwrap();
4896 assert_eq!(layouts.len(), 6);
4897
4898 let relative_rows = window
4899 .update(cx, |editor, cx| {
4900 let snapshot = editor.snapshot(cx);
4901 element.calculate_relative_line_numbers(
4902 &snapshot,
4903 &(DisplayRow(0)..DisplayRow(6)),
4904 Some(DisplayRow(3)),
4905 )
4906 })
4907 .unwrap();
4908 assert_eq!(relative_rows[&DisplayRow(0)], 3);
4909 assert_eq!(relative_rows[&DisplayRow(1)], 2);
4910 assert_eq!(relative_rows[&DisplayRow(2)], 1);
4911 // current line has no relative number
4912 assert_eq!(relative_rows[&DisplayRow(4)], 1);
4913 assert_eq!(relative_rows[&DisplayRow(5)], 2);
4914
4915 // works if cursor is before screen
4916 let relative_rows = window
4917 .update(cx, |editor, cx| {
4918 let snapshot = editor.snapshot(cx);
4919 element.calculate_relative_line_numbers(
4920 &snapshot,
4921 &(DisplayRow(3)..DisplayRow(6)),
4922 Some(DisplayRow(1)),
4923 )
4924 })
4925 .unwrap();
4926 assert_eq!(relative_rows.len(), 3);
4927 assert_eq!(relative_rows[&DisplayRow(3)], 2);
4928 assert_eq!(relative_rows[&DisplayRow(4)], 3);
4929 assert_eq!(relative_rows[&DisplayRow(5)], 4);
4930
4931 // works if cursor is after screen
4932 let relative_rows = window
4933 .update(cx, |editor, cx| {
4934 let snapshot = editor.snapshot(cx);
4935 element.calculate_relative_line_numbers(
4936 &snapshot,
4937 &(DisplayRow(0)..DisplayRow(3)),
4938 Some(DisplayRow(6)),
4939 )
4940 })
4941 .unwrap();
4942 assert_eq!(relative_rows.len(), 3);
4943 assert_eq!(relative_rows[&DisplayRow(0)], 5);
4944 assert_eq!(relative_rows[&DisplayRow(1)], 4);
4945 assert_eq!(relative_rows[&DisplayRow(2)], 3);
4946 }
4947
4948 #[gpui::test]
4949 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
4950 init_test(cx, |_| {});
4951
4952 let window = cx.add_window(|cx| {
4953 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
4954 Editor::new(EditorMode::Full, buffer, None, cx)
4955 });
4956 let cx = &mut VisualTestContext::from_window(*window, cx);
4957 let editor = window.root(cx).unwrap();
4958 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4959
4960 window
4961 .update(cx, |editor, cx| {
4962 editor.cursor_shape = CursorShape::Block;
4963 editor.change_selections(None, cx, |s| {
4964 s.select_ranges([
4965 Point::new(0, 0)..Point::new(1, 0),
4966 Point::new(3, 2)..Point::new(3, 3),
4967 Point::new(5, 6)..Point::new(6, 0),
4968 ]);
4969 });
4970 })
4971 .unwrap();
4972
4973 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
4974 EditorElement::new(&editor, style)
4975 });
4976
4977 assert_eq!(state.selections.len(), 1);
4978 let local_selections = &state.selections[0].1;
4979 assert_eq!(local_selections.len(), 3);
4980 // moves cursor back one line
4981 assert_eq!(
4982 local_selections[0].head,
4983 DisplayPoint::new(DisplayRow(0), 6)
4984 );
4985 assert_eq!(
4986 local_selections[0].range,
4987 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
4988 );
4989
4990 // moves cursor back one column
4991 assert_eq!(
4992 local_selections[1].range,
4993 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
4994 );
4995 assert_eq!(
4996 local_selections[1].head,
4997 DisplayPoint::new(DisplayRow(3), 2)
4998 );
4999
5000 // leaves cursor on the max point
5001 assert_eq!(
5002 local_selections[2].range,
5003 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
5004 );
5005 assert_eq!(
5006 local_selections[2].head,
5007 DisplayPoint::new(DisplayRow(6), 0)
5008 );
5009
5010 // active lines does not include 1 (even though the range of the selection does)
5011 assert_eq!(
5012 state.active_rows.keys().cloned().collect::<Vec<_>>(),
5013 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
5014 );
5015
5016 // multi-buffer support
5017 // in DisplayPoint coordinates, this is what we're dealing with:
5018 // 0: [[file
5019 // 1: header]]
5020 // 2: aaaaaa
5021 // 3: bbbbbb
5022 // 4: cccccc
5023 // 5:
5024 // 6: ...
5025 // 7: ffffff
5026 // 8: gggggg
5027 // 9: hhhhhh
5028 // 10:
5029 // 11: [[file
5030 // 12: header]]
5031 // 13: bbbbbb
5032 // 14: cccccc
5033 // 15: dddddd
5034 let window = cx.add_window(|cx| {
5035 let buffer = MultiBuffer::build_multi(
5036 [
5037 (
5038 &(sample_text(8, 6, 'a') + "\n"),
5039 vec![
5040 Point::new(0, 0)..Point::new(3, 0),
5041 Point::new(4, 0)..Point::new(7, 0),
5042 ],
5043 ),
5044 (
5045 &(sample_text(8, 6, 'a') + "\n"),
5046 vec![Point::new(1, 0)..Point::new(3, 0)],
5047 ),
5048 ],
5049 cx,
5050 );
5051 Editor::new(EditorMode::Full, buffer, None, cx)
5052 });
5053 let editor = window.root(cx).unwrap();
5054 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5055 let _state = window.update(cx, |editor, cx| {
5056 editor.cursor_shape = CursorShape::Block;
5057 editor.change_selections(None, cx, |s| {
5058 s.select_display_ranges([
5059 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
5060 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
5061 ]);
5062 });
5063 });
5064
5065 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5066 EditorElement::new(&editor, style)
5067 });
5068 assert_eq!(state.selections.len(), 1);
5069 let local_selections = &state.selections[0].1;
5070 assert_eq!(local_selections.len(), 2);
5071
5072 // moves cursor on excerpt boundary back a line
5073 // and doesn't allow selection to bleed through
5074 assert_eq!(
5075 local_selections[0].range,
5076 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(6), 0)
5077 );
5078 assert_eq!(
5079 local_selections[0].head,
5080 DisplayPoint::new(DisplayRow(5), 0)
5081 );
5082 // moves cursor on buffer boundary back two lines
5083 // and doesn't allow selection to bleed through
5084 assert_eq!(
5085 local_selections[1].range,
5086 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(11), 0)
5087 );
5088 assert_eq!(
5089 local_selections[1].head,
5090 DisplayPoint::new(DisplayRow(10), 0)
5091 );
5092 }
5093
5094 #[gpui::test]
5095 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
5096 init_test(cx, |_| {});
5097
5098 let window = cx.add_window(|cx| {
5099 let buffer = MultiBuffer::build_simple("", cx);
5100 Editor::new(EditorMode::Full, buffer, None, cx)
5101 });
5102 let cx = &mut VisualTestContext::from_window(*window, cx);
5103 let editor = window.root(cx).unwrap();
5104 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5105 window
5106 .update(cx, |editor, cx| {
5107 editor.set_placeholder_text("hello", cx);
5108 editor.insert_blocks(
5109 [BlockProperties {
5110 style: BlockStyle::Fixed,
5111 disposition: BlockDisposition::Above,
5112 height: 3,
5113 position: Anchor::min(),
5114 render: Box::new(|_| div().into_any()),
5115 }],
5116 None,
5117 cx,
5118 );
5119
5120 // Blur the editor so that it displays placeholder text.
5121 cx.blur();
5122 })
5123 .unwrap();
5124
5125 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5126 EditorElement::new(&editor, style)
5127 });
5128 assert_eq!(state.position_map.line_layouts.len(), 4);
5129 assert_eq!(
5130 state
5131 .line_numbers
5132 .iter()
5133 .map(Option::is_some)
5134 .collect::<Vec<_>>(),
5135 &[false, false, false, true]
5136 );
5137 }
5138
5139 #[gpui::test]
5140 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
5141 const TAB_SIZE: u32 = 4;
5142
5143 let input_text = "\t \t|\t| a b";
5144 let expected_invisibles = vec![
5145 Invisible::Tab {
5146 line_start_offset: 0,
5147 },
5148 Invisible::Whitespace {
5149 line_offset: TAB_SIZE as usize,
5150 },
5151 Invisible::Tab {
5152 line_start_offset: TAB_SIZE as usize + 1,
5153 },
5154 Invisible::Tab {
5155 line_start_offset: TAB_SIZE as usize * 2 + 1,
5156 },
5157 Invisible::Whitespace {
5158 line_offset: TAB_SIZE as usize * 3 + 1,
5159 },
5160 Invisible::Whitespace {
5161 line_offset: TAB_SIZE as usize * 3 + 3,
5162 },
5163 ];
5164 assert_eq!(
5165 expected_invisibles.len(),
5166 input_text
5167 .chars()
5168 .filter(|initial_char| initial_char.is_whitespace())
5169 .count(),
5170 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5171 );
5172
5173 init_test(cx, |s| {
5174 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5175 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
5176 });
5177
5178 let actual_invisibles =
5179 collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, px(500.0));
5180
5181 assert_eq!(expected_invisibles, actual_invisibles);
5182 }
5183
5184 #[gpui::test]
5185 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
5186 init_test(cx, |s| {
5187 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5188 s.defaults.tab_size = NonZeroU32::new(4);
5189 });
5190
5191 for editor_mode_without_invisibles in [
5192 EditorMode::SingleLine,
5193 EditorMode::AutoHeight { max_lines: 100 },
5194 ] {
5195 let invisibles = collect_invisibles_from_new_editor(
5196 cx,
5197 editor_mode_without_invisibles,
5198 "\t\t\t| | a b",
5199 px(500.0),
5200 );
5201 assert!(invisibles.is_empty(),
5202 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
5203 }
5204 }
5205
5206 #[gpui::test]
5207 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
5208 let tab_size = 4;
5209 let input_text = "a\tbcd ".repeat(9);
5210 let repeated_invisibles = [
5211 Invisible::Tab {
5212 line_start_offset: 1,
5213 },
5214 Invisible::Whitespace {
5215 line_offset: tab_size as usize + 3,
5216 },
5217 Invisible::Whitespace {
5218 line_offset: tab_size as usize + 4,
5219 },
5220 Invisible::Whitespace {
5221 line_offset: tab_size as usize + 5,
5222 },
5223 ];
5224 let expected_invisibles = std::iter::once(repeated_invisibles)
5225 .cycle()
5226 .take(9)
5227 .flatten()
5228 .collect::<Vec<_>>();
5229 assert_eq!(
5230 expected_invisibles.len(),
5231 input_text
5232 .chars()
5233 .filter(|initial_char| initial_char.is_whitespace())
5234 .count(),
5235 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5236 );
5237 info!("Expected invisibles: {expected_invisibles:?}");
5238
5239 init_test(cx, |_| {});
5240
5241 // Put the same string with repeating whitespace pattern into editors of various size,
5242 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
5243 let resize_step = 10.0;
5244 let mut editor_width = 200.0;
5245 while editor_width <= 1000.0 {
5246 update_test_language_settings(cx, |s| {
5247 s.defaults.tab_size = NonZeroU32::new(tab_size);
5248 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5249 s.defaults.preferred_line_length = Some(editor_width as u32);
5250 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
5251 });
5252
5253 let actual_invisibles = collect_invisibles_from_new_editor(
5254 cx,
5255 EditorMode::Full,
5256 &input_text,
5257 px(editor_width),
5258 );
5259
5260 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
5261 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
5262 let mut i = 0;
5263 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
5264 i = actual_index;
5265 match expected_invisibles.get(i) {
5266 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
5267 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
5268 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
5269 _ => {
5270 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
5271 }
5272 },
5273 None => panic!("Unexpected extra invisible {actual_invisible:?} at index {i}"),
5274 }
5275 }
5276 let missing_expected_invisibles = &expected_invisibles[i + 1..];
5277 assert!(
5278 missing_expected_invisibles.is_empty(),
5279 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
5280 );
5281
5282 editor_width += resize_step;
5283 }
5284 }
5285
5286 fn collect_invisibles_from_new_editor(
5287 cx: &mut TestAppContext,
5288 editor_mode: EditorMode,
5289 input_text: &str,
5290 editor_width: Pixels,
5291 ) -> Vec<Invisible> {
5292 info!(
5293 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
5294 editor_width.0
5295 );
5296 let window = cx.add_window(|cx| {
5297 let buffer = MultiBuffer::build_simple(&input_text, cx);
5298 Editor::new(editor_mode, buffer, None, cx)
5299 });
5300 let cx = &mut VisualTestContext::from_window(*window, cx);
5301 let editor = window.root(cx).unwrap();
5302 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5303 window
5304 .update(cx, |editor, cx| {
5305 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
5306 editor.set_wrap_width(Some(editor_width), cx);
5307 })
5308 .unwrap();
5309 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5310 EditorElement::new(&editor, style)
5311 });
5312 state
5313 .position_map
5314 .line_layouts
5315 .iter()
5316 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
5317 .cloned()
5318 .collect()
5319 }
5320}
5321
5322pub fn register_action<T: Action>(
5323 view: &View<Editor>,
5324 cx: &mut WindowContext,
5325 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
5326) {
5327 let view = view.clone();
5328 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
5329 let action = action.downcast_ref().unwrap();
5330 if phase == DispatchPhase::Bubble {
5331 view.update(cx, |editor, cx| {
5332 listener(editor, action, cx);
5333 })
5334 }
5335 })
5336}
5337
5338fn compute_auto_height_layout(
5339 editor: &mut Editor,
5340 max_lines: usize,
5341 max_line_number_width: Pixels,
5342 known_dimensions: Size<Option<Pixels>>,
5343 available_width: AvailableSpace,
5344 cx: &mut ViewContext<Editor>,
5345) -> Option<Size<Pixels>> {
5346 let width = known_dimensions.width.or_else(|| {
5347 if let AvailableSpace::Definite(available_width) = available_width {
5348 Some(available_width)
5349 } else {
5350 None
5351 }
5352 })?;
5353 if let Some(height) = known_dimensions.height {
5354 return Some(size(width, height));
5355 }
5356
5357 let style = editor.style.as_ref().unwrap();
5358 let font_id = cx.text_system().resolve_font(&style.text.font());
5359 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5360 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5361 let em_width = cx
5362 .text_system()
5363 .typographic_bounds(font_id, font_size, 'm')
5364 .unwrap()
5365 .size
5366 .width;
5367
5368 let mut snapshot = editor.snapshot(cx);
5369 let gutter_dimensions =
5370 snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
5371
5372 editor.gutter_dimensions = gutter_dimensions;
5373 let text_width = width - gutter_dimensions.width;
5374 let overscroll = size(em_width, px(0.));
5375
5376 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
5377 if editor.set_wrap_width(Some(editor_width), cx) {
5378 snapshot = editor.snapshot(cx);
5379 }
5380
5381 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
5382 let height = scroll_height
5383 .max(line_height)
5384 .min(line_height * max_lines as f32);
5385
5386 Some(size(width, height))
5387}