1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 display_map::{
4 BlockContext, BlockStyle, DisplaySnapshot, FoldStatus, HighlightedChunk, ToDisplayPoint,
5 TransformBlock,
6 },
7 editor_settings::{DoubleClickInMultibuffer, MultiCursorModifier, ShowScrollbar},
8 git::{blame::GitBlame, diff_hunk_to_display, DisplayDiffHunk},
9 hover_popover::{
10 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
11 },
12 hunk_status,
13 items::BufferSearchHighlights,
14 mouse_context_menu::{self, MouseContextMenu},
15 scroll::scroll_amount::ScrollAmount,
16 CodeActionsMenu, CursorShape, DisplayPoint, DisplayRow, DocumentHighlightRead,
17 DocumentHighlightWrite, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
18 ExpandExcerpts, GutterDimensions, HalfPageDown, HalfPageUp, HoveredCursor, HunkToExpand,
19 LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase,
20 Selection, SoftWrap, ToPoint, CURSORS_VISIBLE_FOR, MAX_LINE_LEN,
21};
22use anyhow::Result;
23use client::ParticipantIndex;
24use collections::{BTreeMap, HashMap, HashSet};
25use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
26use gpui::{
27 anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
28 transparent_black, Action, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClipboardItem,
29 ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
30 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, ModifiersChangedEvent,
31 MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels,
32 ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size, Stateful,
33 StatefulInteractiveElement, Style, Styled, TextRun, TextStyle, TextStyleRefinement, View,
34 ViewContext, WeakView, WindowContext,
35};
36use itertools::Itertools;
37use language::language_settings::ShowWhitespaceSetting;
38use lsp::DiagnosticSeverity;
39use multi_buffer::{Anchor, MultiBufferPoint, MultiBufferRow};
40use project::{
41 project_settings::{GitGutterSetting, ProjectSettings},
42 ProjectPath,
43};
44use settings::Settings;
45use smallvec::SmallVec;
46use std::{
47 any::TypeId,
48 borrow::Cow,
49 cmp::{self, max, Ordering},
50 fmt::Write,
51 iter, mem,
52 ops::{Deref, Range},
53 sync::Arc,
54};
55use sum_tree::Bias;
56use theme::{ActiveTheme, PlayerColor};
57use ui::prelude::*;
58use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
59use util::ResultExt;
60use workspace::{item::Item, Workspace};
61
62struct SelectionLayout {
63 head: DisplayPoint,
64 cursor_shape: CursorShape,
65 is_newest: bool,
66 is_local: bool,
67 range: Range<DisplayPoint>,
68 active_rows: Range<DisplayRow>,
69 user_name: Option<SharedString>,
70}
71
72impl SelectionLayout {
73 fn new<T: ToPoint + ToDisplayPoint + Clone>(
74 selection: Selection<T>,
75 line_mode: bool,
76 cursor_shape: CursorShape,
77 map: &DisplaySnapshot,
78 is_newest: bool,
79 is_local: bool,
80 user_name: Option<SharedString>,
81 ) -> Self {
82 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
83 let display_selection = point_selection.map(|p| p.to_display_point(map));
84 let mut range = display_selection.range();
85 let mut head = display_selection.head();
86 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
87 ..map.next_line_boundary(point_selection.end).1.row();
88
89 // vim visual line mode
90 if line_mode {
91 let point_range = map.expand_to_line(point_selection.range());
92 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
93 }
94
95 // any vim visual mode (including line mode)
96 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
97 && !range.is_empty()
98 && !selection.reversed
99 {
100 if head.column() > 0 {
101 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
102 } else if head.row().0 > 0 && head != map.max_point() {
103 head = map.clip_point(
104 DisplayPoint::new(
105 head.row().previous_row(),
106 map.line_len(head.row().previous_row()),
107 ),
108 Bias::Left,
109 );
110 // updating range.end is a no-op unless you're cursor is
111 // on the newline containing a multi-buffer divider
112 // in which case the clip_point may have moved the head up
113 // an additional row.
114 range.end = DisplayPoint::new(head.row().next_row(), 0);
115 active_rows.end = head.row();
116 }
117 }
118
119 Self {
120 head,
121 cursor_shape,
122 is_newest,
123 is_local,
124 range,
125 active_rows,
126 user_name,
127 }
128 }
129}
130
131pub struct EditorElement {
132 editor: View<Editor>,
133 style: EditorStyle,
134}
135
136type DisplayRowDelta = u32;
137
138impl EditorElement {
139 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
140 Self {
141 editor: editor.clone(),
142 style,
143 }
144 }
145
146 fn register_actions(&self, cx: &mut WindowContext) {
147 let view = &self.editor;
148 view.update(cx, |editor, cx| {
149 for action in editor.editor_actions.iter() {
150 (action)(cx)
151 }
152 });
153
154 crate::rust_analyzer_ext::apply_related_actions(view, cx);
155 register_action(view, cx, Editor::move_left);
156 register_action(view, cx, Editor::move_right);
157 register_action(view, cx, Editor::move_down);
158 register_action(view, cx, Editor::move_down_by_lines);
159 register_action(view, cx, Editor::select_down_by_lines);
160 register_action(view, cx, Editor::move_up);
161 register_action(view, cx, Editor::move_up_by_lines);
162 register_action(view, cx, Editor::select_up_by_lines);
163 register_action(view, cx, Editor::cancel);
164 register_action(view, cx, Editor::newline);
165 register_action(view, cx, Editor::newline_above);
166 register_action(view, cx, Editor::newline_below);
167 register_action(view, cx, Editor::backspace);
168 register_action(view, cx, Editor::delete);
169 register_action(view, cx, Editor::tab);
170 register_action(view, cx, Editor::tab_prev);
171 register_action(view, cx, Editor::indent);
172 register_action(view, cx, Editor::outdent);
173 register_action(view, cx, Editor::delete_line);
174 register_action(view, cx, Editor::join_lines);
175 register_action(view, cx, Editor::sort_lines_case_sensitive);
176 register_action(view, cx, Editor::sort_lines_case_insensitive);
177 register_action(view, cx, Editor::reverse_lines);
178 register_action(view, cx, Editor::shuffle_lines);
179 register_action(view, cx, Editor::convert_to_upper_case);
180 register_action(view, cx, Editor::convert_to_lower_case);
181 register_action(view, cx, Editor::convert_to_title_case);
182 register_action(view, cx, Editor::convert_to_snake_case);
183 register_action(view, cx, Editor::convert_to_kebab_case);
184 register_action(view, cx, Editor::convert_to_upper_camel_case);
185 register_action(view, cx, Editor::convert_to_lower_camel_case);
186 register_action(view, cx, Editor::convert_to_opposite_case);
187 register_action(view, cx, Editor::delete_to_previous_word_start);
188 register_action(view, cx, Editor::delete_to_previous_subword_start);
189 register_action(view, cx, Editor::delete_to_next_word_end);
190 register_action(view, cx, Editor::delete_to_next_subword_end);
191 register_action(view, cx, Editor::delete_to_beginning_of_line);
192 register_action(view, cx, Editor::delete_to_end_of_line);
193 register_action(view, cx, Editor::cut_to_end_of_line);
194 register_action(view, cx, Editor::duplicate_line_up);
195 register_action(view, cx, Editor::duplicate_line_down);
196 register_action(view, cx, Editor::move_line_up);
197 register_action(view, cx, Editor::move_line_down);
198 register_action(view, cx, Editor::transpose);
199 register_action(view, cx, Editor::cut);
200 register_action(view, cx, Editor::copy);
201 register_action(view, cx, Editor::paste);
202 register_action(view, cx, Editor::undo);
203 register_action(view, cx, Editor::redo);
204 register_action(view, cx, Editor::move_page_up);
205 register_action(view, cx, Editor::move_page_down);
206 register_action(view, cx, Editor::next_screen);
207 register_action(view, cx, Editor::scroll_cursor_top);
208 register_action(view, cx, Editor::scroll_cursor_center);
209 register_action(view, cx, Editor::scroll_cursor_bottom);
210 register_action(view, cx, |editor, _: &LineDown, cx| {
211 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
212 });
213 register_action(view, cx, |editor, _: &LineUp, cx| {
214 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
215 });
216 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
217 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
218 });
219 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
220 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
221 });
222 register_action(view, cx, |editor, _: &PageDown, cx| {
223 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
224 });
225 register_action(view, cx, |editor, _: &PageUp, cx| {
226 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
227 });
228 register_action(view, cx, Editor::move_to_previous_word_start);
229 register_action(view, cx, Editor::move_to_previous_subword_start);
230 register_action(view, cx, Editor::move_to_next_word_end);
231 register_action(view, cx, Editor::move_to_next_subword_end);
232 register_action(view, cx, Editor::move_to_beginning_of_line);
233 register_action(view, cx, Editor::move_to_end_of_line);
234 register_action(view, cx, Editor::move_to_start_of_paragraph);
235 register_action(view, cx, Editor::move_to_end_of_paragraph);
236 register_action(view, cx, Editor::move_to_beginning);
237 register_action(view, cx, Editor::move_to_end);
238 register_action(view, cx, Editor::select_up);
239 register_action(view, cx, Editor::select_down);
240 register_action(view, cx, Editor::select_left);
241 register_action(view, cx, Editor::select_right);
242 register_action(view, cx, Editor::select_to_previous_word_start);
243 register_action(view, cx, Editor::select_to_previous_subword_start);
244 register_action(view, cx, Editor::select_to_next_word_end);
245 register_action(view, cx, Editor::select_to_next_subword_end);
246 register_action(view, cx, Editor::select_to_beginning_of_line);
247 register_action(view, cx, Editor::select_to_end_of_line);
248 register_action(view, cx, Editor::select_to_start_of_paragraph);
249 register_action(view, cx, Editor::select_to_end_of_paragraph);
250 register_action(view, cx, Editor::select_to_beginning);
251 register_action(view, cx, Editor::select_to_end);
252 register_action(view, cx, Editor::select_all);
253 register_action(view, cx, |editor, action, cx| {
254 editor.select_all_matches(action, cx).log_err();
255 });
256 register_action(view, cx, Editor::select_line);
257 register_action(view, cx, Editor::split_selection_into_lines);
258 register_action(view, cx, Editor::add_selection_above);
259 register_action(view, cx, Editor::add_selection_below);
260 register_action(view, cx, |editor, action, cx| {
261 editor.select_next(action, cx).log_err();
262 });
263 register_action(view, cx, |editor, action, cx| {
264 editor.select_previous(action, cx).log_err();
265 });
266 register_action(view, cx, Editor::toggle_comments);
267 register_action(view, cx, Editor::select_larger_syntax_node);
268 register_action(view, cx, Editor::select_smaller_syntax_node);
269 register_action(view, cx, Editor::move_to_enclosing_bracket);
270 register_action(view, cx, Editor::undo_selection);
271 register_action(view, cx, Editor::redo_selection);
272 if !view.read(cx).is_singleton(cx) {
273 register_action(view, cx, Editor::expand_excerpts);
274 }
275 register_action(view, cx, Editor::go_to_diagnostic);
276 register_action(view, cx, Editor::go_to_prev_diagnostic);
277 register_action(view, cx, Editor::go_to_hunk);
278 register_action(view, cx, Editor::go_to_prev_hunk);
279 register_action(view, cx, |editor, a, cx| {
280 editor.go_to_definition(a, cx).detach_and_log_err(cx);
281 });
282 register_action(view, cx, |editor, a, cx| {
283 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
284 });
285 register_action(view, cx, |editor, a, cx| {
286 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
287 });
288 register_action(view, cx, |editor, a, cx| {
289 editor
290 .go_to_implementation_split(a, cx)
291 .detach_and_log_err(cx);
292 });
293 register_action(view, cx, |editor, a, cx| {
294 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
295 });
296 register_action(view, cx, |editor, a, cx| {
297 editor
298 .go_to_type_definition_split(a, cx)
299 .detach_and_log_err(cx);
300 });
301 register_action(view, cx, Editor::open_url);
302 register_action(view, cx, Editor::fold);
303 register_action(view, cx, Editor::fold_at);
304 register_action(view, cx, Editor::unfold_lines);
305 register_action(view, cx, Editor::unfold_at);
306 register_action(view, cx, Editor::fold_selected_ranges);
307 register_action(view, cx, Editor::show_completions);
308 register_action(view, cx, Editor::toggle_code_actions);
309 register_action(view, cx, Editor::open_excerpts);
310 register_action(view, cx, Editor::open_excerpts_in_split);
311 register_action(view, cx, Editor::toggle_soft_wrap);
312 register_action(view, cx, Editor::toggle_line_numbers);
313 register_action(view, cx, Editor::toggle_inlay_hints);
314 register_action(view, cx, hover_popover::hover);
315 register_action(view, cx, Editor::reveal_in_finder);
316 register_action(view, cx, Editor::copy_path);
317 register_action(view, cx, Editor::copy_relative_path);
318 register_action(view, cx, Editor::copy_highlight_json);
319 register_action(view, cx, Editor::copy_permalink_to_line);
320 register_action(view, cx, Editor::open_permalink_to_line);
321 register_action(view, cx, Editor::toggle_git_blame);
322 register_action(view, cx, Editor::toggle_git_blame_inline);
323 register_action(view, cx, Editor::toggle_hunk_diff);
324 register_action(view, cx, Editor::expand_all_hunk_diffs);
325 register_action(view, cx, |editor, action, cx| {
326 if let Some(task) = editor.format(action, cx) {
327 task.detach_and_log_err(cx);
328 } else {
329 cx.propagate();
330 }
331 });
332 register_action(view, cx, Editor::restart_language_server);
333 register_action(view, cx, Editor::show_character_palette);
334 register_action(view, cx, |editor, action, cx| {
335 if let Some(task) = editor.confirm_completion(action, cx) {
336 task.detach_and_log_err(cx);
337 } else {
338 cx.propagate();
339 }
340 });
341 register_action(view, cx, |editor, action, cx| {
342 if let Some(task) = editor.confirm_code_action(action, cx) {
343 task.detach_and_log_err(cx);
344 } else {
345 cx.propagate();
346 }
347 });
348 register_action(view, cx, |editor, action, cx| {
349 if let Some(task) = editor.rename(action, cx) {
350 task.detach_and_log_err(cx);
351 } else {
352 cx.propagate();
353 }
354 });
355 register_action(view, cx, |editor, action, cx| {
356 if let Some(task) = editor.confirm_rename(action, cx) {
357 task.detach_and_log_err(cx);
358 } else {
359 cx.propagate();
360 }
361 });
362 register_action(view, cx, |editor, action, cx| {
363 if let Some(task) = editor.find_all_references(action, cx) {
364 task.detach_and_log_err(cx);
365 } else {
366 cx.propagate();
367 }
368 });
369 register_action(view, cx, Editor::next_inline_completion);
370 register_action(view, cx, Editor::previous_inline_completion);
371 register_action(view, cx, Editor::show_inline_completion);
372 register_action(view, cx, Editor::context_menu_first);
373 register_action(view, cx, Editor::context_menu_prev);
374 register_action(view, cx, Editor::context_menu_next);
375 register_action(view, cx, Editor::context_menu_last);
376 register_action(view, cx, Editor::display_cursor_names);
377 register_action(view, cx, Editor::unique_lines_case_insensitive);
378 register_action(view, cx, Editor::unique_lines_case_sensitive);
379 register_action(view, cx, Editor::accept_partial_inline_completion);
380 register_action(view, cx, Editor::revert_selected_hunks);
381 register_action(view, cx, Editor::open_active_item_in_terminal)
382 }
383
384 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
385 let position_map = layout.position_map.clone();
386 cx.on_key_event({
387 let editor = self.editor.clone();
388 let text_hitbox = layout.text_hitbox.clone();
389 move |event: &ModifiersChangedEvent, phase, cx| {
390 if phase != DispatchPhase::Bubble {
391 return;
392 }
393
394 editor.update(cx, |editor, cx| {
395 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
396 })
397 }
398 });
399 }
400
401 fn modifiers_changed(
402 editor: &mut Editor,
403 event: &ModifiersChangedEvent,
404 position_map: &PositionMap,
405 text_hitbox: &Hitbox,
406 cx: &mut ViewContext<Editor>,
407 ) {
408 let mouse_position = cx.mouse_position();
409 if !text_hitbox.is_hovered(cx) {
410 return;
411 }
412
413 editor.update_hovered_link(
414 position_map.point_for_position(text_hitbox.bounds, mouse_position),
415 &position_map.snapshot,
416 event.modifiers,
417 cx,
418 )
419 }
420
421 fn mouse_left_down(
422 editor: &mut Editor,
423 event: &MouseDownEvent,
424 hovered_hunk: Option<&HunkToExpand>,
425 position_map: &PositionMap,
426 text_hitbox: &Hitbox,
427 gutter_hitbox: &Hitbox,
428 cx: &mut ViewContext<Editor>,
429 ) {
430 if cx.default_prevented() {
431 return;
432 }
433
434 let mut click_count = event.click_count;
435 let mut modifiers = event.modifiers;
436
437 if let Some(hovered_hunk) = hovered_hunk {
438 editor.expand_diff_hunk(None, hovered_hunk, cx);
439 cx.notify();
440 return;
441 } else if gutter_hitbox.is_hovered(cx) {
442 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
443 } else if !text_hitbox.is_hovered(cx) {
444 return;
445 }
446
447 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
448 match EditorSettings::get_global(cx).double_click_in_multibuffer {
449 DoubleClickInMultibuffer::Select => {
450 // do nothing special on double click, all selection logic is below
451 }
452 DoubleClickInMultibuffer::Open => {
453 if modifiers.alt {
454 // if double click is made with alt, pretend it's a regular double click without opening and alt,
455 // and run the selection logic.
456 modifiers.alt = false;
457 } else {
458 // if double click is made without alt, open the corresponding excerp
459 editor.open_excerpts(&OpenExcerpts, cx);
460 return;
461 }
462 }
463 }
464 }
465
466 let point_for_position =
467 position_map.point_for_position(text_hitbox.bounds, event.position);
468 let position = point_for_position.previous_valid;
469 if modifiers.shift && modifiers.alt {
470 editor.select(
471 SelectPhase::BeginColumnar {
472 position,
473 goal_column: point_for_position.exact_unclipped.column(),
474 },
475 cx,
476 );
477 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
478 {
479 editor.select(
480 SelectPhase::Extend {
481 position,
482 click_count,
483 },
484 cx,
485 );
486 } else {
487 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
488 let multi_cursor_modifier = match multi_cursor_setting {
489 MultiCursorModifier::Alt => modifiers.alt,
490 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
491 };
492 editor.select(
493 SelectPhase::Begin {
494 position,
495 add: multi_cursor_modifier,
496 click_count,
497 },
498 cx,
499 );
500 }
501
502 cx.stop_propagation();
503 }
504
505 fn mouse_right_down(
506 editor: &mut Editor,
507 event: &MouseDownEvent,
508 position_map: &PositionMap,
509 text_hitbox: &Hitbox,
510 cx: &mut ViewContext<Editor>,
511 ) {
512 if !text_hitbox.is_hovered(cx) {
513 return;
514 }
515 let point_for_position =
516 position_map.point_for_position(text_hitbox.bounds, event.position);
517 mouse_context_menu::deploy_context_menu(
518 editor,
519 event.position,
520 point_for_position.previous_valid,
521 cx,
522 );
523 cx.stop_propagation();
524 }
525
526 fn mouse_middle_down(
527 editor: &mut Editor,
528 event: &MouseDownEvent,
529 position_map: &PositionMap,
530 text_hitbox: &Hitbox,
531 cx: &mut ViewContext<Editor>,
532 ) {
533 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
534 return;
535 }
536
537 if let Some(item) = cx.read_from_primary() {
538 let point_for_position =
539 position_map.point_for_position(text_hitbox.bounds, event.position);
540 let position = point_for_position.previous_valid;
541
542 editor.select(
543 SelectPhase::Begin {
544 position,
545 add: false,
546 click_count: 1,
547 },
548 cx,
549 );
550 editor.insert(item.text(), cx);
551 }
552 }
553
554 fn mouse_up(
555 editor: &mut Editor,
556 event: &MouseUpEvent,
557 position_map: &PositionMap,
558 text_hitbox: &Hitbox,
559 cx: &mut ViewContext<Editor>,
560 ) {
561 let end_selection = editor.has_pending_selection();
562 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
563
564 if end_selection {
565 editor.select(SelectPhase::End, cx);
566 }
567
568 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
569 let multi_cursor_modifier = match multi_cursor_setting {
570 MultiCursorModifier::Alt => event.modifiers.secondary(),
571 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
572 };
573
574 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
575 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
576 editor.handle_click_hovered_link(point, event.modifiers, cx);
577
578 cx.stop_propagation();
579 } else if end_selection {
580 cx.stop_propagation();
581 }
582 }
583
584 fn mouse_dragged(
585 editor: &mut Editor,
586 event: &MouseMoveEvent,
587 position_map: &PositionMap,
588 text_bounds: Bounds<Pixels>,
589 cx: &mut ViewContext<Editor>,
590 ) {
591 if !editor.has_pending_selection() {
592 return;
593 }
594
595 let point_for_position = position_map.point_for_position(text_bounds, event.position);
596 let mut scroll_delta = gpui::Point::<f32>::default();
597 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
598 let top = text_bounds.origin.y + vertical_margin;
599 let bottom = text_bounds.lower_left().y - vertical_margin;
600 if event.position.y < top {
601 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
602 }
603 if event.position.y > bottom {
604 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
605 }
606
607 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
608 let left = text_bounds.origin.x + horizontal_margin;
609 let right = text_bounds.upper_right().x - horizontal_margin;
610 if event.position.x < left {
611 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
612 }
613 if event.position.x > right {
614 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
615 }
616
617 editor.select(
618 SelectPhase::Update {
619 position: point_for_position.previous_valid,
620 goal_column: point_for_position.exact_unclipped.column(),
621 scroll_delta,
622 },
623 cx,
624 );
625 }
626
627 fn mouse_moved(
628 editor: &mut Editor,
629 event: &MouseMoveEvent,
630 position_map: &PositionMap,
631 text_hitbox: &Hitbox,
632 gutter_hitbox: &Hitbox,
633 cx: &mut ViewContext<Editor>,
634 ) {
635 let modifiers = event.modifiers;
636 let gutter_hovered = gutter_hitbox.is_hovered(cx);
637 editor.set_gutter_hovered(gutter_hovered, cx);
638
639 // Don't trigger hover popover if mouse is hovering over context menu
640 if text_hitbox.is_hovered(cx) {
641 let point_for_position =
642 position_map.point_for_position(text_hitbox.bounds, event.position);
643
644 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
645
646 if let Some(point) = point_for_position.as_valid() {
647 let anchor = position_map
648 .snapshot
649 .buffer_snapshot
650 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
651 hover_at(editor, Some(anchor), cx);
652 Self::update_visible_cursor(editor, point, position_map, cx);
653 } else {
654 hover_at(editor, None, cx);
655 }
656 } else {
657 editor.hide_hovered_link(cx);
658 hover_at(editor, None, cx);
659 if gutter_hovered {
660 cx.stop_propagation();
661 }
662 }
663 }
664
665 fn update_visible_cursor(
666 editor: &mut Editor,
667 point: DisplayPoint,
668 position_map: &PositionMap,
669 cx: &mut ViewContext<Editor>,
670 ) {
671 let snapshot = &position_map.snapshot;
672 let Some(hub) = editor.collaboration_hub() else {
673 return;
674 };
675 let range = DisplayPoint::new(point.row(), point.column().saturating_sub(1))
676 ..DisplayPoint::new(
677 point.row(),
678 (point.column() + 1).min(snapshot.line_len(point.row())),
679 );
680
681 let range = snapshot
682 .buffer_snapshot
683 .anchor_at(range.start.to_point(&snapshot.display_snapshot), Bias::Left)
684 ..snapshot
685 .buffer_snapshot
686 .anchor_at(range.end.to_point(&snapshot.display_snapshot), Bias::Right);
687
688 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
689 return;
690 };
691 let key = crate::HoveredCursor {
692 replica_id: selection.replica_id,
693 selection_id: selection.selection.id,
694 };
695 editor.hovered_cursors.insert(
696 key.clone(),
697 cx.spawn(|editor, mut cx| async move {
698 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
699 editor
700 .update(&mut cx, |editor, cx| {
701 editor.hovered_cursors.remove(&key);
702 cx.notify();
703 })
704 .ok();
705 }),
706 );
707 cx.notify()
708 }
709
710 fn layout_selections(
711 &self,
712 start_anchor: Anchor,
713 end_anchor: Anchor,
714 snapshot: &EditorSnapshot,
715 start_row: DisplayRow,
716 end_row: DisplayRow,
717 cx: &mut WindowContext,
718 ) -> (
719 Vec<(PlayerColor, Vec<SelectionLayout>)>,
720 BTreeMap<DisplayRow, bool>,
721 Option<DisplayPoint>,
722 ) {
723 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
724 let mut active_rows = BTreeMap::new();
725 let mut newest_selection_head = None;
726 let editor = self.editor.read(cx);
727
728 if editor.show_local_selections {
729 let mut local_selections: Vec<Selection<Point>> = editor
730 .selections
731 .disjoint_in_range(start_anchor..end_anchor, cx);
732 local_selections.extend(editor.selections.pending(cx));
733 let mut layouts = Vec::new();
734 let newest = editor.selections.newest(cx);
735 for selection in local_selections.drain(..) {
736 let is_empty = selection.start == selection.end;
737 let is_newest = selection == newest;
738
739 let layout = SelectionLayout::new(
740 selection,
741 editor.selections.line_mode,
742 editor.cursor_shape,
743 &snapshot.display_snapshot,
744 is_newest,
745 editor.leader_peer_id.is_none(),
746 None,
747 );
748 if is_newest {
749 newest_selection_head = Some(layout.head);
750 }
751
752 for row in cmp::max(layout.active_rows.start.0, start_row.0)
753 ..=cmp::min(layout.active_rows.end.0, end_row.0)
754 {
755 let contains_non_empty_selection =
756 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
757 *contains_non_empty_selection |= !is_empty;
758 }
759 layouts.push(layout);
760 }
761
762 let player = if editor.read_only(cx) {
763 cx.theme().players().read_only()
764 } else {
765 self.style.local_player
766 };
767
768 selections.push((player, layouts));
769 }
770
771 if let Some(collaboration_hub) = &editor.collaboration_hub {
772 // When following someone, render the local selections in their color.
773 if let Some(leader_id) = editor.leader_peer_id {
774 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
775 if let Some(participant_index) = collaboration_hub
776 .user_participant_indices(cx)
777 .get(&collaborator.user_id)
778 {
779 if let Some((local_selection_style, _)) = selections.first_mut() {
780 *local_selection_style = cx
781 .theme()
782 .players()
783 .color_for_participant(participant_index.0);
784 }
785 }
786 }
787 }
788
789 let mut remote_selections = HashMap::default();
790 for selection in snapshot.remote_selections_in_range(
791 &(start_anchor..end_anchor),
792 collaboration_hub.as_ref(),
793 cx,
794 ) {
795 let selection_style = Self::get_participant_color(selection.participant_index, cx);
796
797 // Don't re-render the leader's selections, since the local selections
798 // match theirs.
799 if Some(selection.peer_id) == editor.leader_peer_id {
800 continue;
801 }
802 let key = HoveredCursor {
803 replica_id: selection.replica_id,
804 selection_id: selection.selection.id,
805 };
806
807 let is_shown =
808 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
809
810 remote_selections
811 .entry(selection.replica_id)
812 .or_insert((selection_style, Vec::new()))
813 .1
814 .push(SelectionLayout::new(
815 selection.selection,
816 selection.line_mode,
817 selection.cursor_shape,
818 &snapshot.display_snapshot,
819 false,
820 false,
821 if is_shown { selection.user_name } else { None },
822 ));
823 }
824
825 selections.extend(remote_selections.into_values());
826 }
827 (selections, active_rows, newest_selection_head)
828 }
829
830 #[allow(clippy::too_many_arguments)]
831 fn layout_folds(
832 &self,
833 snapshot: &EditorSnapshot,
834 content_origin: gpui::Point<Pixels>,
835 visible_anchor_range: Range<Anchor>,
836 visible_display_row_range: Range<DisplayRow>,
837 scroll_pixel_position: gpui::Point<Pixels>,
838 line_height: Pixels,
839 line_layouts: &[LineWithInvisibles],
840 cx: &mut WindowContext,
841 ) -> Vec<FoldLayout> {
842 snapshot
843 .folds_in_range(visible_anchor_range.clone())
844 .filter_map(|fold| {
845 let fold_range = fold.range.clone();
846 let display_range = fold.range.start.to_display_point(&snapshot)
847 ..fold.range.end.to_display_point(&snapshot);
848 debug_assert_eq!(display_range.start.row(), display_range.end.row());
849 let row = display_range.start.row();
850 debug_assert!(row < visible_display_row_range.end);
851 let line_layout = line_layouts
852 .get(row.minus(visible_display_row_range.start) as usize)
853 .map(|l| &l.line)?;
854
855 let start_x = content_origin.x
856 + line_layout.x_for_index(display_range.start.column() as usize)
857 - scroll_pixel_position.x;
858 let start_y =
859 content_origin.y + row.as_f32() * line_height - scroll_pixel_position.y;
860 let end_x = content_origin.x
861 + line_layout.x_for_index(display_range.end.column() as usize)
862 - scroll_pixel_position.x;
863
864 let fold_bounds = Bounds {
865 origin: point(start_x, start_y),
866 size: size(end_x - start_x, line_height),
867 };
868
869 let mut hover_element = div()
870 .id(fold.id)
871 .size_full()
872 .cursor_pointer()
873 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
874 .on_click(
875 cx.listener_for(&self.editor, move |editor: &mut Editor, _, cx| {
876 editor.unfold_ranges(
877 [fold_range.start..fold_range.end],
878 true,
879 false,
880 cx,
881 );
882 cx.stop_propagation();
883 }),
884 )
885 .into_any();
886 hover_element.prepaint_as_root(fold_bounds.origin, fold_bounds.size.into(), cx);
887 Some(FoldLayout {
888 display_range,
889 hover_element,
890 })
891 })
892 .collect()
893 }
894
895 fn collect_cursors(
896 &self,
897 snapshot: &EditorSnapshot,
898 cx: &mut WindowContext,
899 ) -> Vec<(DisplayPoint, Hsla)> {
900 let editor = self.editor.read(cx);
901 let mut cursors = Vec::new();
902 let mut skip_local = false;
903 let mut add_cursor = |anchor: Anchor, color| {
904 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
905 };
906 // Remote cursors
907 if let Some(collaboration_hub) = &editor.collaboration_hub {
908 for remote_selection in snapshot.remote_selections_in_range(
909 &(Anchor::min()..Anchor::max()),
910 collaboration_hub.deref(),
911 cx,
912 ) {
913 let color = Self::get_participant_color(remote_selection.participant_index, cx);
914 add_cursor(remote_selection.selection.head(), color.cursor);
915 if Some(remote_selection.peer_id) == editor.leader_peer_id {
916 skip_local = true;
917 }
918 }
919 }
920 // Local cursors
921 if !skip_local {
922 let color = cx.theme().players().local().cursor;
923 editor.selections.disjoint.iter().for_each(|selection| {
924 add_cursor(selection.head(), color);
925 });
926 if let Some(ref selection) = editor.selections.pending_anchor() {
927 add_cursor(selection.head(), color);
928 }
929 }
930 cursors
931 }
932
933 #[allow(clippy::too_many_arguments)]
934 fn layout_visible_cursors(
935 &self,
936 snapshot: &EditorSnapshot,
937 selections: &[(PlayerColor, Vec<SelectionLayout>)],
938 visible_display_row_range: Range<DisplayRow>,
939 line_layouts: &[LineWithInvisibles],
940 text_hitbox: &Hitbox,
941 content_origin: gpui::Point<Pixels>,
942 scroll_position: gpui::Point<f32>,
943 scroll_pixel_position: gpui::Point<Pixels>,
944 line_height: Pixels,
945 em_width: Pixels,
946 autoscroll_containing_element: bool,
947 cx: &mut WindowContext,
948 ) -> Vec<CursorLayout> {
949 let mut autoscroll_bounds = None;
950 let cursor_layouts = self.editor.update(cx, |editor, cx| {
951 let mut cursors = Vec::new();
952 for (player_color, selections) in selections {
953 for selection in selections {
954 let cursor_position = selection.head;
955
956 let in_range = visible_display_row_range.contains(&cursor_position.row());
957 if (selection.is_local && !editor.show_local_cursors(cx)) || !in_range {
958 continue;
959 }
960
961 let cursor_row_layout = &line_layouts
962 [cursor_position.row().minus(visible_display_row_range.start) as usize]
963 .line;
964 let cursor_column = cursor_position.column() as usize;
965
966 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
967 let mut block_width =
968 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
969 if block_width == Pixels::ZERO {
970 block_width = em_width;
971 }
972 let block_text = if let CursorShape::Block = selection.cursor_shape {
973 snapshot.display_chars_at(cursor_position).next().and_then(
974 |(character, _)| {
975 let text = if character == '\n' {
976 SharedString::from(" ")
977 } else {
978 SharedString::from(character.to_string())
979 };
980 let len = text.len();
981
982 let font = cursor_row_layout
983 .font_id_for_index(cursor_column)
984 .and_then(|cursor_font_id| {
985 cx.text_system().get_font_for_id(cursor_font_id)
986 })
987 .unwrap_or(self.style.text.font());
988
989 cx.text_system()
990 .shape_line(
991 text,
992 cursor_row_layout.font_size,
993 &[TextRun {
994 len,
995 font,
996 color: self.style.background,
997 background_color: None,
998 strikethrough: None,
999 underline: None,
1000 }],
1001 )
1002 .log_err()
1003 },
1004 )
1005 } else {
1006 None
1007 };
1008
1009 let x = cursor_character_x - scroll_pixel_position.x;
1010 let y = (cursor_position.row().as_f32()
1011 - scroll_pixel_position.y / line_height)
1012 * line_height;
1013 if selection.is_newest {
1014 editor.pixel_position_of_newest_cursor = Some(point(
1015 text_hitbox.origin.x + x + block_width / 2.,
1016 text_hitbox.origin.y + y + line_height / 2.,
1017 ));
1018
1019 if autoscroll_containing_element {
1020 let top = text_hitbox.origin.y
1021 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1022 * line_height;
1023 let left = text_hitbox.origin.x
1024 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1025 .max(0.)
1026 * em_width;
1027
1028 let bottom = text_hitbox.origin.y
1029 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1030 * line_height;
1031 let right = text_hitbox.origin.x
1032 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1033 * em_width;
1034
1035 autoscroll_bounds =
1036 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1037 }
1038 }
1039
1040 let mut cursor = CursorLayout {
1041 color: player_color.cursor,
1042 block_width,
1043 origin: point(x, y),
1044 line_height,
1045 shape: selection.cursor_shape,
1046 block_text,
1047 cursor_name: None,
1048 };
1049 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1050 string: name,
1051 color: self.style.background,
1052 is_top_row: cursor_position.row().0 == 0,
1053 });
1054 cursor.layout(content_origin, cursor_name, cx);
1055 cursors.push(cursor);
1056 }
1057 }
1058 cursors
1059 });
1060
1061 if let Some(bounds) = autoscroll_bounds {
1062 cx.request_autoscroll(bounds);
1063 }
1064
1065 cursor_layouts
1066 }
1067
1068 fn layout_scrollbar(
1069 &self,
1070 snapshot: &EditorSnapshot,
1071 bounds: Bounds<Pixels>,
1072 scroll_position: gpui::Point<f32>,
1073 rows_per_page: f32,
1074 non_visible_cursors: bool,
1075 cx: &mut WindowContext,
1076 ) -> Option<ScrollbarLayout> {
1077 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1078 let show_scrollbars = match scrollbar_settings.show {
1079 ShowScrollbar::Auto => {
1080 let editor = self.editor.read(cx);
1081 let is_singleton = editor.is_singleton(cx);
1082 // Git
1083 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1084 ||
1085 // Buffer Search Results
1086 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1087 ||
1088 // Selected Symbol Occurrences
1089 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1090 ||
1091 // Diagnostics
1092 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1093 ||
1094 // Cursors out of sight
1095 non_visible_cursors
1096 ||
1097 // Scrollmanager
1098 editor.scroll_manager.scrollbars_visible()
1099 }
1100 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1101 ShowScrollbar::Always => true,
1102 ShowScrollbar::Never => false,
1103 };
1104 if snapshot.mode != EditorMode::Full {
1105 return None;
1106 }
1107
1108 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1109
1110 // If a drag took place after we started dragging the scrollbar,
1111 // cancel the scrollbar drag.
1112 if cx.has_active_drag() {
1113 self.editor.update(cx, |editor, cx| {
1114 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1115 });
1116 }
1117
1118 let track_bounds = Bounds::from_corners(
1119 point(self.scrollbar_left(&bounds), bounds.origin.y),
1120 point(bounds.lower_right().x, bounds.lower_left().y),
1121 );
1122
1123 let height = bounds.size.height;
1124 let total_rows = snapshot.max_point().row().as_f32() + rows_per_page;
1125 let px_per_row = height / total_rows;
1126 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1127 let row_height = (height - thumb_height) / snapshot.max_point().row().as_f32();
1128
1129 Some(ScrollbarLayout {
1130 hitbox: cx.insert_hitbox(track_bounds, false),
1131 visible_row_range,
1132 row_height,
1133 visible: show_scrollbars,
1134 thumb_height,
1135 })
1136 }
1137
1138 #[allow(clippy::too_many_arguments)]
1139 fn layout_gutter_fold_indicators(
1140 &self,
1141 fold_statuses: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
1142 line_height: Pixels,
1143 gutter_dimensions: &GutterDimensions,
1144 gutter_settings: crate::editor_settings::Gutter,
1145 scroll_pixel_position: gpui::Point<Pixels>,
1146 gutter_hitbox: &Hitbox,
1147 cx: &mut WindowContext,
1148 ) -> Vec<Option<AnyElement>> {
1149 let mut indicators = self.editor.update(cx, |editor, cx| {
1150 editor.render_fold_indicators(
1151 fold_statuses,
1152 &self.style,
1153 editor.gutter_hovered,
1154 line_height,
1155 gutter_dimensions.margin,
1156 cx,
1157 )
1158 });
1159
1160 for (ix, fold_indicator) in indicators.iter_mut().enumerate() {
1161 if let Some(fold_indicator) = fold_indicator {
1162 debug_assert!(gutter_settings.folds);
1163 let available_space = size(
1164 AvailableSpace::MinContent,
1165 AvailableSpace::Definite(line_height * 0.55),
1166 );
1167 let fold_indicator_size = fold_indicator.layout_as_root(available_space, cx);
1168
1169 let position = point(
1170 gutter_dimensions.width - gutter_dimensions.right_padding,
1171 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1172 );
1173 let centering_offset = point(
1174 (gutter_dimensions.right_padding + gutter_dimensions.margin
1175 - fold_indicator_size.width)
1176 / 2.,
1177 (line_height - fold_indicator_size.height) / 2.,
1178 );
1179 let origin = gutter_hitbox.origin + position + centering_offset;
1180 fold_indicator.prepaint_as_root(origin, available_space, cx);
1181 }
1182 }
1183
1184 indicators
1185 }
1186
1187 // Folds contained in a hunk are ignored apart from shrinking visual size
1188 // If a fold contains any hunks then that fold line is marked as modified
1189 fn layout_git_gutters(
1190 &self,
1191 line_height: Pixels,
1192 gutter_hitbox: &Hitbox,
1193 display_rows: Range<DisplayRow>,
1194 snapshot: &EditorSnapshot,
1195 cx: &mut WindowContext,
1196 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1197 let buffer_snapshot = &snapshot.buffer_snapshot;
1198
1199 let buffer_start_row = MultiBufferRow(
1200 DisplayPoint::new(display_rows.start, 0)
1201 .to_point(snapshot)
1202 .row,
1203 );
1204 let buffer_end_row = MultiBufferRow(
1205 DisplayPoint::new(display_rows.end, 0)
1206 .to_point(snapshot)
1207 .row,
1208 );
1209
1210 let expanded_hunk_display_rows = self.editor.update(cx, |editor, _| {
1211 editor
1212 .expanded_hunks
1213 .hunks(false)
1214 .map(|expanded_hunk| {
1215 let start_row = expanded_hunk
1216 .hunk_range
1217 .start
1218 .to_display_point(snapshot)
1219 .row();
1220 let end_row = expanded_hunk
1221 .hunk_range
1222 .end
1223 .to_display_point(snapshot)
1224 .row();
1225 (start_row, end_row)
1226 })
1227 .collect::<HashMap<_, _>>()
1228 });
1229
1230 buffer_snapshot
1231 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1232 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
1233 .dedup()
1234 .map(|hunk| {
1235 let hitbox = if let DisplayDiffHunk::Unfolded {
1236 display_row_range, ..
1237 } = &hunk
1238 {
1239 let was_expanded = expanded_hunk_display_rows
1240 .get(&display_row_range.start)
1241 .map(|expanded_end_row| expanded_end_row == &display_row_range.end)
1242 .unwrap_or(false);
1243 if was_expanded {
1244 None
1245 } else {
1246 let hunk_bounds = Self::diff_hunk_bounds(
1247 &snapshot,
1248 line_height,
1249 gutter_hitbox.bounds,
1250 &hunk,
1251 );
1252 Some(cx.insert_hitbox(hunk_bounds, true))
1253 }
1254 } else {
1255 None
1256 };
1257 (hunk, hitbox)
1258 })
1259 .collect()
1260 }
1261
1262 #[allow(clippy::too_many_arguments)]
1263 fn layout_inline_blame(
1264 &self,
1265 display_row: DisplayRow,
1266 display_snapshot: &DisplaySnapshot,
1267 line_layout: &LineWithInvisibles,
1268 em_width: Pixels,
1269 content_origin: gpui::Point<Pixels>,
1270 scroll_pixel_position: gpui::Point<Pixels>,
1271 line_height: Pixels,
1272 cx: &mut WindowContext,
1273 ) -> Option<AnyElement> {
1274 if !self
1275 .editor
1276 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1277 {
1278 return None;
1279 }
1280
1281 let workspace = self
1282 .editor
1283 .read(cx)
1284 .workspace
1285 .as_ref()
1286 .map(|(w, _)| w.clone());
1287
1288 let display_point = DisplayPoint::new(display_row, 0);
1289 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1290
1291 let blame = self.editor.read(cx).blame.clone()?;
1292 let blame_entry = blame
1293 .update(cx, |blame, cx| {
1294 blame.blame_for_rows([Some(buffer_row)], cx).next()
1295 })
1296 .flatten()?;
1297
1298 let mut element =
1299 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1300
1301 let start_y = content_origin.y
1302 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1303
1304 let start_x = {
1305 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1306
1307 let padded_line_width =
1308 line_layout.line.width + (em_width * INLINE_BLAME_PADDING_EM_WIDTHS);
1309
1310 let min_column = ProjectSettings::get_global(cx)
1311 .git
1312 .inline_blame
1313 .and_then(|settings| settings.min_column)
1314 .map(|col| self.column_pixels(col as usize, cx))
1315 .unwrap_or(px(0.));
1316
1317 (content_origin.x - scroll_pixel_position.x) + max(padded_line_width, min_column)
1318 };
1319
1320 let absolute_offset = point(start_x, start_y);
1321 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1322
1323 element.prepaint_as_root(absolute_offset, available_space, cx);
1324
1325 Some(element)
1326 }
1327
1328 #[allow(clippy::too_many_arguments)]
1329 fn layout_blame_entries(
1330 &self,
1331 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1332 em_width: Pixels,
1333 scroll_position: gpui::Point<f32>,
1334 line_height: Pixels,
1335 gutter_hitbox: &Hitbox,
1336 max_width: Option<Pixels>,
1337 cx: &mut WindowContext,
1338 ) -> Option<Vec<AnyElement>> {
1339 if !self
1340 .editor
1341 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1342 {
1343 return None;
1344 }
1345
1346 let blame = self.editor.read(cx).blame.clone()?;
1347 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1348 blame.blame_for_rows(buffer_rows, cx).collect()
1349 });
1350
1351 let width = if let Some(max_width) = max_width {
1352 AvailableSpace::Definite(max_width)
1353 } else {
1354 AvailableSpace::MaxContent
1355 };
1356 let scroll_top = scroll_position.y * line_height;
1357 let start_x = em_width * 1;
1358
1359 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1360
1361 let shaped_lines = blamed_rows
1362 .into_iter()
1363 .enumerate()
1364 .flat_map(|(ix, blame_entry)| {
1365 if let Some(blame_entry) = blame_entry {
1366 let mut element = render_blame_entry(
1367 ix,
1368 &blame,
1369 blame_entry,
1370 &self.style,
1371 &mut last_used_color,
1372 self.editor.clone(),
1373 cx,
1374 );
1375
1376 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1377 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1378
1379 element.prepaint_as_root(
1380 absolute_offset,
1381 size(width, AvailableSpace::MinContent),
1382 cx,
1383 );
1384
1385 Some(element)
1386 } else {
1387 None
1388 }
1389 })
1390 .collect();
1391
1392 Some(shaped_lines)
1393 }
1394
1395 fn layout_run_indicators(
1396 &self,
1397 line_height: Pixels,
1398 scroll_pixel_position: gpui::Point<Pixels>,
1399 gutter_dimensions: &GutterDimensions,
1400 gutter_hitbox: &Hitbox,
1401 snapshot: &EditorSnapshot,
1402 cx: &mut WindowContext,
1403 ) -> Vec<AnyElement> {
1404 self.editor.update(cx, |editor, cx| {
1405 let active_task_indicator_row =
1406 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1407 deployed_from_indicator,
1408 actions,
1409 ..
1410 })) = editor.context_menu.read().as_ref()
1411 {
1412 actions
1413 .tasks
1414 .as_ref()
1415 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1416 .or_else(|| *deployed_from_indicator)
1417 } else {
1418 None
1419 };
1420 editor
1421 .tasks
1422 .iter()
1423 .filter_map(|(_, (multibuffer_offset, _))| {
1424 let multibuffer_point = multibuffer_offset.to_point(&snapshot.buffer_snapshot);
1425 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1426 if snapshot.is_line_folded(multibuffer_row) {
1427 return None;
1428 }
1429 let display_row = multibuffer_point.to_display_point(snapshot).row();
1430 let button = editor.render_run_indicator(
1431 &self.style,
1432 Some(display_row) == active_task_indicator_row,
1433 display_row,
1434 cx,
1435 );
1436
1437 let button = prepaint_gutter_button(
1438 button,
1439 display_row,
1440 line_height,
1441 gutter_dimensions,
1442 scroll_pixel_position,
1443 gutter_hitbox,
1444 cx,
1445 );
1446 Some(button)
1447 })
1448 .collect_vec()
1449 })
1450 }
1451
1452 fn layout_code_actions_indicator(
1453 &self,
1454 line_height: Pixels,
1455 newest_selection_head: DisplayPoint,
1456 scroll_pixel_position: gpui::Point<Pixels>,
1457 gutter_dimensions: &GutterDimensions,
1458 gutter_hitbox: &Hitbox,
1459 cx: &mut WindowContext,
1460 ) -> Option<AnyElement> {
1461 let mut active = false;
1462 let mut button = None;
1463 let row = newest_selection_head.row();
1464 self.editor.update(cx, |editor, cx| {
1465 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1466 deployed_from_indicator,
1467 ..
1468 })) = editor.context_menu.read().as_ref()
1469 {
1470 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1471 };
1472 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1473 });
1474
1475 let button = prepaint_gutter_button(
1476 button?,
1477 row,
1478 line_height,
1479 gutter_dimensions,
1480 scroll_pixel_position,
1481 gutter_hitbox,
1482 cx,
1483 );
1484
1485 Some(button)
1486 }
1487
1488 fn get_participant_color(
1489 participant_index: Option<ParticipantIndex>,
1490 cx: &WindowContext,
1491 ) -> PlayerColor {
1492 if let Some(index) = participant_index {
1493 cx.theme().players().color_for_participant(index.0)
1494 } else {
1495 cx.theme().players().absent()
1496 }
1497 }
1498
1499 fn calculate_relative_line_numbers(
1500 &self,
1501 snapshot: &EditorSnapshot,
1502 rows: &Range<DisplayRow>,
1503 relative_to: Option<DisplayRow>,
1504 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1505 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1506 let Some(relative_to) = relative_to else {
1507 return relative_rows;
1508 };
1509
1510 let start = rows.start.min(relative_to);
1511 let end = rows.end.max(relative_to);
1512
1513 let buffer_rows = snapshot
1514 .display_rows(start)
1515 .take(1 + end.minus(start) as usize)
1516 .collect::<Vec<_>>();
1517
1518 let head_idx = relative_to.minus(start);
1519 let mut delta = 1;
1520 let mut i = head_idx + 1;
1521 while i < buffer_rows.len() as u32 {
1522 if buffer_rows[i as usize].is_some() {
1523 if rows.contains(&DisplayRow(i + start.0)) {
1524 relative_rows.insert(DisplayRow(i + start.0), delta);
1525 }
1526 delta += 1;
1527 }
1528 i += 1;
1529 }
1530 delta = 1;
1531 i = head_idx.min(buffer_rows.len() as u32 - 1);
1532 while i > 0 && buffer_rows[i as usize].is_none() {
1533 i -= 1;
1534 }
1535
1536 while i > 0 {
1537 i -= 1;
1538 if buffer_rows[i as usize].is_some() {
1539 if rows.contains(&DisplayRow(i + start.0)) {
1540 relative_rows.insert(DisplayRow(i + start.0), delta);
1541 }
1542 delta += 1;
1543 }
1544 }
1545
1546 relative_rows
1547 }
1548
1549 fn layout_line_numbers(
1550 &self,
1551 rows: Range<DisplayRow>,
1552 buffer_rows: impl Iterator<Item = Option<DisplayRow>>,
1553 active_rows: &BTreeMap<DisplayRow, bool>,
1554 newest_selection_head: Option<DisplayPoint>,
1555 snapshot: &EditorSnapshot,
1556 cx: &WindowContext,
1557 ) -> (
1558 Vec<Option<ShapedLine>>,
1559 Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
1560 ) {
1561 let editor = self.editor.read(cx);
1562 let is_singleton = editor.is_singleton(cx);
1563 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1564 let newest = editor.selections.newest::<Point>(cx);
1565 SelectionLayout::new(
1566 newest,
1567 editor.selections.line_mode,
1568 editor.cursor_shape,
1569 &snapshot.display_snapshot,
1570 true,
1571 true,
1572 None,
1573 )
1574 .head
1575 });
1576 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1577 let include_line_numbers =
1578 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full;
1579 let include_fold_statuses =
1580 EditorSettings::get_global(cx).gutter.folds && snapshot.mode == EditorMode::Full;
1581 let mut shaped_line_numbers = Vec::with_capacity(rows.len());
1582 let mut fold_statuses = Vec::with_capacity(rows.len());
1583 let mut line_number = String::new();
1584 let is_relative = EditorSettings::get_global(cx).relative_line_numbers;
1585 let relative_to = if is_relative {
1586 Some(newest_selection_head.row())
1587 } else {
1588 None
1589 };
1590
1591 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1592
1593 for (ix, row) in buffer_rows.into_iter().enumerate() {
1594 let display_row = DisplayRow(rows.start.0 + ix as u32);
1595 let (active, color) = if active_rows.contains_key(&display_row) {
1596 (true, cx.theme().colors().editor_active_line_number)
1597 } else {
1598 (false, cx.theme().colors().editor_line_number)
1599 };
1600 if let Some(display_row) = row {
1601 if include_line_numbers {
1602 line_number.clear();
1603 let default_number = display_row.0 + 1;
1604 let number = relative_rows
1605 .get(&DisplayRow(ix as u32 + rows.start.0))
1606 .unwrap_or(&default_number);
1607 write!(&mut line_number, "{number}").unwrap();
1608 let run = TextRun {
1609 len: line_number.len(),
1610 font: self.style.text.font(),
1611 color,
1612 background_color: None,
1613 underline: None,
1614 strikethrough: None,
1615 };
1616 let shaped_line = cx
1617 .text_system()
1618 .shape_line(line_number.clone().into(), font_size, &[run])
1619 .unwrap();
1620 shaped_line_numbers.push(Some(shaped_line));
1621 }
1622 if include_fold_statuses {
1623 fold_statuses.push(
1624 is_singleton
1625 .then(|| {
1626 let multibuffer_point =
1627 DisplayPoint::new(display_row, 0).to_point(snapshot);
1628 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1629 snapshot
1630 .fold_for_line(multibuffer_row)
1631 .map(|fold_status| (fold_status, multibuffer_row, active))
1632 })
1633 .flatten(),
1634 )
1635 }
1636 } else {
1637 fold_statuses.push(None);
1638 shaped_line_numbers.push(None);
1639 }
1640 }
1641
1642 (shaped_line_numbers, fold_statuses)
1643 }
1644
1645 fn layout_lines(
1646 &self,
1647 rows: Range<DisplayRow>,
1648 line_number_layouts: &[Option<ShapedLine>],
1649 snapshot: &EditorSnapshot,
1650 cx: &WindowContext,
1651 ) -> Vec<LineWithInvisibles> {
1652 if rows.start >= rows.end {
1653 return Vec::new();
1654 }
1655
1656 // Show the placeholder when the editor is empty
1657 if snapshot.is_empty() {
1658 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1659 let placeholder_color = cx.theme().colors().text_placeholder;
1660 let placeholder_text = snapshot.placeholder_text();
1661
1662 let placeholder_lines = placeholder_text
1663 .as_ref()
1664 .map_or("", AsRef::as_ref)
1665 .split('\n')
1666 .skip(rows.start.0 as usize)
1667 .chain(iter::repeat(""))
1668 .take(rows.len());
1669 placeholder_lines
1670 .filter_map(move |line| {
1671 let run = TextRun {
1672 len: line.len(),
1673 font: self.style.text.font(),
1674 color: placeholder_color,
1675 background_color: None,
1676 underline: Default::default(),
1677 strikethrough: None,
1678 };
1679 cx.text_system()
1680 .shape_line(line.to_string().into(), font_size, &[run])
1681 .log_err()
1682 })
1683 .map(|line| LineWithInvisibles {
1684 line,
1685 invisibles: Vec::new(),
1686 })
1687 .collect()
1688 } else {
1689 let chunks = snapshot.highlighted_chunks(rows.clone(), true, &self.style);
1690 LineWithInvisibles::from_chunks(
1691 chunks,
1692 &self.style.text,
1693 MAX_LINE_LEN,
1694 rows.len(),
1695 line_number_layouts,
1696 snapshot.mode,
1697 cx,
1698 )
1699 }
1700 }
1701
1702 #[allow(clippy::too_many_arguments)]
1703 fn build_blocks(
1704 &self,
1705 rows: Range<DisplayRow>,
1706 snapshot: &EditorSnapshot,
1707 hitbox: &Hitbox,
1708 text_hitbox: &Hitbox,
1709 scroll_width: &mut Pixels,
1710 gutter_dimensions: &GutterDimensions,
1711 em_width: Pixels,
1712 text_x: Pixels,
1713 line_height: Pixels,
1714 line_layouts: &[LineWithInvisibles],
1715 cx: &mut WindowContext,
1716 ) -> Vec<BlockLayout> {
1717 let mut block_id = 0;
1718 let (fixed_blocks, non_fixed_blocks) = snapshot
1719 .blocks_in_range(rows.clone())
1720 .partition::<Vec<_>, _>(|(_, block)| match block {
1721 TransformBlock::ExcerptHeader { .. } => false,
1722 TransformBlock::Custom(block) => block.style() == BlockStyle::Fixed,
1723 });
1724
1725 let render_block = |block: &TransformBlock,
1726 available_space: Size<AvailableSpace>,
1727 block_id: usize,
1728 block_row_start: DisplayRow,
1729 cx: &mut WindowContext| {
1730 let mut element = match block {
1731 TransformBlock::Custom(block) => {
1732 let align_to = block
1733 .position()
1734 .to_point(&snapshot.buffer_snapshot)
1735 .to_display_point(snapshot);
1736 let anchor_x = text_x
1737 + if rows.contains(&align_to.row()) {
1738 line_layouts[align_to.row().minus(rows.start) as usize]
1739 .line
1740 .x_for_index(align_to.column() as usize)
1741 } else {
1742 layout_line(align_to.row(), snapshot, &self.style, cx)
1743 .unwrap()
1744 .x_for_index(align_to.column() as usize)
1745 };
1746
1747 block.render(&mut BlockContext {
1748 context: cx,
1749 anchor_x,
1750 gutter_dimensions,
1751 line_height,
1752 em_width,
1753 block_id,
1754 max_width: text_hitbox.size.width.max(*scroll_width),
1755 editor_style: &self.style,
1756 })
1757 }
1758
1759 TransformBlock::ExcerptHeader {
1760 buffer,
1761 range,
1762 starts_new_buffer,
1763 height,
1764 id,
1765 ..
1766 } => {
1767 let include_root = self
1768 .editor
1769 .read(cx)
1770 .project
1771 .as_ref()
1772 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
1773 .unwrap_or_default();
1774
1775 #[derive(Clone)]
1776 struct JumpData {
1777 position: Point,
1778 anchor: text::Anchor,
1779 path: ProjectPath,
1780 line_offset_from_top: u32,
1781 }
1782
1783 let jump_data = project::File::from_dyn(buffer.file()).map(|file| {
1784 let jump_path = ProjectPath {
1785 worktree_id: file.worktree_id(cx),
1786 path: file.path.clone(),
1787 };
1788 let jump_anchor = range
1789 .primary
1790 .as_ref()
1791 .map_or(range.context.start, |primary| primary.start);
1792
1793 let excerpt_start = range.context.start;
1794 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
1795 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
1796 0
1797 } else {
1798 let excerpt_start_row =
1799 language::ToPoint::to_point(&jump_anchor, buffer).row;
1800 jump_position.row - excerpt_start_row
1801 };
1802
1803 let line_offset_from_top =
1804 block_row_start.0 + *height as u32 + offset_from_excerpt_start
1805 - snapshot
1806 .scroll_anchor
1807 .scroll_position(&snapshot.display_snapshot)
1808 .y as u32;
1809
1810 JumpData {
1811 position: jump_position,
1812 anchor: jump_anchor,
1813 path: jump_path,
1814 line_offset_from_top,
1815 }
1816 });
1817
1818 let element = if *starts_new_buffer {
1819 let path = buffer.resolve_file_path(cx, include_root);
1820 let mut filename = None;
1821 let mut parent_path = None;
1822 // Can't use .and_then() because `.file_name()` and `.parent()` return references :(
1823 if let Some(path) = path {
1824 filename = path.file_name().map(|f| f.to_string_lossy().to_string());
1825 parent_path = path
1826 .parent()
1827 .map(|p| SharedString::from(p.to_string_lossy().to_string() + "/"));
1828 }
1829
1830 v_flex()
1831 .id(("path header container", block_id))
1832 .size_full()
1833 .justify_center()
1834 .p(gpui::px(6.))
1835 .child(
1836 h_flex()
1837 .id("path header block")
1838 .size_full()
1839 .pl(gpui::px(12.))
1840 .pr(gpui::px(8.))
1841 .rounded_md()
1842 .shadow_md()
1843 .border_1()
1844 .border_color(cx.theme().colors().border)
1845 .bg(cx.theme().colors().editor_subheader_background)
1846 .justify_between()
1847 .hover(|style| style.bg(cx.theme().colors().element_hover))
1848 .child(
1849 h_flex().gap_3().child(
1850 h_flex()
1851 .gap_2()
1852 .child(
1853 filename
1854 .map(SharedString::from)
1855 .unwrap_or_else(|| "untitled".into()),
1856 )
1857 .when_some(parent_path, |then, path| {
1858 then.child(
1859 div().child(path).text_color(
1860 cx.theme().colors().text_muted,
1861 ),
1862 )
1863 }),
1864 ),
1865 )
1866 .when_some(jump_data.clone(), |this, jump_data| {
1867 this.cursor_pointer()
1868 .tooltip(|cx| {
1869 Tooltip::for_action(
1870 "Jump to File",
1871 &OpenExcerpts,
1872 cx,
1873 )
1874 })
1875 .on_mouse_down(MouseButton::Left, |_, cx| {
1876 cx.stop_propagation()
1877 })
1878 .on_click(cx.listener_for(&self.editor, {
1879 move |editor, _, cx| {
1880 editor.jump(
1881 jump_data.path.clone(),
1882 jump_data.position,
1883 jump_data.anchor,
1884 jump_data.line_offset_from_top,
1885 cx,
1886 );
1887 }
1888 }))
1889 }),
1890 )
1891 } else {
1892 v_flex()
1893 .id(("collapsed context", block_id))
1894 .size_full()
1895 .child(
1896 div()
1897 .flex()
1898 .v_flex()
1899 .justify_start()
1900 .id("jump to collapsed context")
1901 .w(relative(1.0))
1902 .h_full()
1903 .child(
1904 div()
1905 .h_px()
1906 .w_full()
1907 .bg(cx.theme().colors().border_variant)
1908 .group_hover("excerpt-jump-action", |style| {
1909 style.bg(cx.theme().colors().border)
1910 }),
1911 ),
1912 )
1913 .child(
1914 h_flex()
1915 .justify_end()
1916 .flex_none()
1917 .w(
1918 gutter_dimensions.width - (gutter_dimensions.left_padding), // + gutter_dimensions.right_padding)
1919 )
1920 .h_full()
1921 .child(
1922 ButtonLike::new("expand-icon")
1923 .style(ButtonStyle::Transparent)
1924 .child(
1925 svg()
1926 .path(IconName::ExpandVertical.path())
1927 .size(IconSize::XSmall.rems())
1928 .text_color(
1929 cx.theme().colors().editor_line_number,
1930 )
1931 .group("")
1932 .hover(|style| {
1933 style.text_color(
1934 cx.theme()
1935 .colors()
1936 .editor_active_line_number,
1937 )
1938 }),
1939 )
1940 .on_click(cx.listener_for(&self.editor, {
1941 let id = *id;
1942 move |editor, _, cx| {
1943 editor.expand_excerpt(id, cx);
1944 }
1945 }))
1946 .tooltip({
1947 move |cx| {
1948 Tooltip::for_action(
1949 "Expand Excerpt",
1950 &ExpandExcerpts { lines: 0 },
1951 cx,
1952 )
1953 }
1954 }),
1955 ),
1956 )
1957 .group("excerpt-jump-action")
1958 .cursor_pointer()
1959 .when_some(jump_data.clone(), |this, jump_data| {
1960 this.on_click(cx.listener_for(&self.editor, {
1961 let path = jump_data.path.clone();
1962 move |editor, _, cx| {
1963 cx.stop_propagation();
1964
1965 editor.jump(
1966 path.clone(),
1967 jump_data.position,
1968 jump_data.anchor,
1969 jump_data.line_offset_from_top,
1970 cx,
1971 );
1972 }
1973 }))
1974 .tooltip(move |cx| {
1975 Tooltip::for_action(
1976 format!(
1977 "Jump to {}:L{}",
1978 jump_data.path.path.display(),
1979 jump_data.position.row + 1
1980 ),
1981 &OpenExcerpts,
1982 cx,
1983 )
1984 })
1985 })
1986 };
1987 element.into_any()
1988 }
1989 };
1990
1991 let size = element.layout_as_root(available_space, cx);
1992 (element, size)
1993 };
1994
1995 let mut fixed_block_max_width = Pixels::ZERO;
1996 let mut blocks = Vec::new();
1997 for (row, block) in fixed_blocks {
1998 let available_space = size(
1999 AvailableSpace::MinContent,
2000 AvailableSpace::Definite(block.height() as f32 * line_height),
2001 );
2002 let (element, element_size) = render_block(block, available_space, block_id, row, cx);
2003 block_id += 1;
2004 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2005 blocks.push(BlockLayout {
2006 row,
2007 element,
2008 available_space,
2009 style: BlockStyle::Fixed,
2010 });
2011 }
2012 for (row, block) in non_fixed_blocks {
2013 let style = match block {
2014 TransformBlock::Custom(block) => block.style(),
2015 TransformBlock::ExcerptHeader { .. } => BlockStyle::Sticky,
2016 };
2017 let width = match style {
2018 BlockStyle::Sticky => hitbox.size.width,
2019 BlockStyle::Flex => hitbox
2020 .size
2021 .width
2022 .max(fixed_block_max_width)
2023 .max(gutter_dimensions.width + *scroll_width),
2024 BlockStyle::Fixed => unreachable!(),
2025 };
2026 let available_space = size(
2027 AvailableSpace::Definite(width),
2028 AvailableSpace::Definite(block.height() as f32 * line_height),
2029 );
2030 let (element, _) = render_block(block, available_space, block_id, row, cx);
2031 block_id += 1;
2032 blocks.push(BlockLayout {
2033 row,
2034 element,
2035 available_space,
2036 style,
2037 });
2038 }
2039
2040 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2041 blocks
2042 }
2043
2044 fn layout_blocks(
2045 &self,
2046 blocks: &mut Vec<BlockLayout>,
2047 hitbox: &Hitbox,
2048 line_height: Pixels,
2049 scroll_pixel_position: gpui::Point<Pixels>,
2050 cx: &mut WindowContext,
2051 ) {
2052 for block in blocks {
2053 let mut origin = hitbox.origin
2054 + point(
2055 Pixels::ZERO,
2056 block.row.as_f32() * line_height - scroll_pixel_position.y,
2057 );
2058 if !matches!(block.style, BlockStyle::Sticky) {
2059 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2060 }
2061 block
2062 .element
2063 .prepaint_as_root(origin, block.available_space, cx);
2064 }
2065 }
2066
2067 #[allow(clippy::too_many_arguments)]
2068 fn layout_context_menu(
2069 &self,
2070 line_height: Pixels,
2071 hitbox: &Hitbox,
2072 text_hitbox: &Hitbox,
2073 content_origin: gpui::Point<Pixels>,
2074 start_row: DisplayRow,
2075 scroll_pixel_position: gpui::Point<Pixels>,
2076 line_layouts: &[LineWithInvisibles],
2077 newest_selection_head: DisplayPoint,
2078 gutter_overshoot: Pixels,
2079 cx: &mut WindowContext,
2080 ) -> bool {
2081 let max_height = cmp::min(
2082 12. * line_height,
2083 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2084 );
2085 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2086 if editor.context_menu_visible() {
2087 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2088 } else {
2089 None
2090 }
2091 }) else {
2092 return false;
2093 };
2094
2095 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2096 let context_menu_size = context_menu.layout_as_root(available_space, cx);
2097
2098 let (x, y) = match position {
2099 crate::ContextMenuOrigin::EditorPoint(point) => {
2100 let cursor_row_layout = &line_layouts[point.row().minus(start_row) as usize].line;
2101 let x = cursor_row_layout.x_for_index(point.column() as usize)
2102 - scroll_pixel_position.x;
2103 let y = point.row().next_row().as_f32() * line_height - scroll_pixel_position.y;
2104 (x, y)
2105 }
2106 crate::ContextMenuOrigin::GutterIndicator(row) => {
2107 // 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
2108 // text field.
2109 let x = -gutter_overshoot;
2110 let y = row.next_row().as_f32() * line_height - scroll_pixel_position.y;
2111 (x, y)
2112 }
2113 };
2114
2115 let mut list_origin = content_origin + point(x, y);
2116 let list_width = context_menu_size.width;
2117 let list_height = context_menu_size.height;
2118
2119 // Snap the right edge of the list to the right edge of the window if
2120 // its horizontal bounds overflow.
2121 if list_origin.x + list_width > cx.viewport_size().width {
2122 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2123 }
2124
2125 if list_origin.y + list_height > text_hitbox.lower_right().y {
2126 list_origin.y -= line_height + list_height;
2127 }
2128
2129 cx.defer_draw(context_menu, list_origin, 1);
2130 true
2131 }
2132
2133 fn layout_mouse_context_menu(&self, cx: &mut WindowContext) -> Option<AnyElement> {
2134 let mouse_context_menu = self.editor.read(cx).mouse_context_menu.as_ref()?;
2135 let mut element = deferred(
2136 anchored()
2137 .position(mouse_context_menu.position)
2138 .child(mouse_context_menu.context_menu.clone())
2139 .anchor(AnchorCorner::TopLeft)
2140 .snap_to_window(),
2141 )
2142 .with_priority(1)
2143 .into_any();
2144
2145 element.prepaint_as_root(gpui::Point::default(), AvailableSpace::min_size(), cx);
2146 Some(element)
2147 }
2148
2149 #[allow(clippy::too_many_arguments)]
2150 fn layout_hover_popovers(
2151 &self,
2152 snapshot: &EditorSnapshot,
2153 hitbox: &Hitbox,
2154 text_hitbox: &Hitbox,
2155 visible_display_row_range: Range<DisplayRow>,
2156 content_origin: gpui::Point<Pixels>,
2157 scroll_pixel_position: gpui::Point<Pixels>,
2158 line_layouts: &[LineWithInvisibles],
2159 line_height: Pixels,
2160 em_width: Pixels,
2161 cx: &mut WindowContext,
2162 ) {
2163 struct MeasuredHoverPopover {
2164 element: AnyElement,
2165 size: Size<Pixels>,
2166 horizontal_offset: Pixels,
2167 }
2168
2169 let max_size = size(
2170 (120. * em_width) // Default size
2171 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2172 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2173 (16. * line_height) // Default size
2174 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2175 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2176 );
2177
2178 let hover_popovers = self.editor.update(cx, |editor, cx| {
2179 editor.hover_state.render(
2180 &snapshot,
2181 &self.style,
2182 visible_display_row_range.clone(),
2183 max_size,
2184 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2185 cx,
2186 )
2187 });
2188 let Some((position, hover_popovers)) = hover_popovers else {
2189 return;
2190 };
2191
2192 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2193
2194 // This is safe because we check on layout whether the required row is available
2195 let hovered_row_layout =
2196 &line_layouts[position.row().minus(visible_display_row_range.start) as usize].line;
2197
2198 // Compute Hovered Point
2199 let x =
2200 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2201 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
2202 let hovered_point = content_origin + point(x, y);
2203
2204 let mut overall_height = Pixels::ZERO;
2205 let mut measured_hover_popovers = Vec::new();
2206 for mut hover_popover in hover_popovers {
2207 let size = hover_popover.layout_as_root(available_space, cx);
2208 let horizontal_offset =
2209 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2210
2211 overall_height += HOVER_POPOVER_GAP + size.height;
2212
2213 measured_hover_popovers.push(MeasuredHoverPopover {
2214 element: hover_popover,
2215 size,
2216 horizontal_offset,
2217 });
2218 }
2219 overall_height += HOVER_POPOVER_GAP;
2220
2221 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2222 let mut occlusion = div()
2223 .size_full()
2224 .occlude()
2225 .on_mouse_move(|_, cx| cx.stop_propagation())
2226 .into_any_element();
2227 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2228 cx.defer_draw(occlusion, origin, 2);
2229 }
2230
2231 if hovered_point.y > overall_height {
2232 // There is enough space above. Render popovers above the hovered point
2233 let mut current_y = hovered_point.y;
2234 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2235 let size = popover.size;
2236 let popover_origin = point(
2237 hovered_point.x + popover.horizontal_offset,
2238 current_y - size.height,
2239 );
2240
2241 cx.defer_draw(popover.element, popover_origin, 2);
2242 if position != itertools::Position::Last {
2243 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2244 draw_occluder(size.width, origin, cx);
2245 }
2246
2247 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2248 }
2249 } else {
2250 // There is not enough space above. Render popovers below the hovered point
2251 let mut current_y = hovered_point.y + line_height;
2252 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2253 let size = popover.size;
2254 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2255
2256 cx.defer_draw(popover.element, popover_origin, 2);
2257 if position != itertools::Position::Last {
2258 let origin = point(popover_origin.x, popover_origin.y + size.height);
2259 draw_occluder(size.width, origin, cx);
2260 }
2261
2262 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2263 }
2264 }
2265 }
2266
2267 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2268 cx.paint_layer(layout.hitbox.bounds, |cx| {
2269 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2270 let gutter_bg = cx.theme().colors().editor_gutter_background;
2271 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2272 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2273
2274 if let EditorMode::Full = layout.mode {
2275 let mut active_rows = layout.active_rows.iter().peekable();
2276 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2277 let mut end_row = start_row.0;
2278 while active_rows
2279 .peek()
2280 .map_or(false, |(active_row, has_selection)| {
2281 active_row.0 == end_row + 1
2282 && *has_selection == contains_non_empty_selection
2283 })
2284 {
2285 active_rows.next().unwrap();
2286 end_row += 1;
2287 }
2288
2289 if !contains_non_empty_selection {
2290 let origin = point(
2291 layout.hitbox.origin.x,
2292 layout.hitbox.origin.y
2293 + (start_row.as_f32() - scroll_top)
2294 * layout.position_map.line_height,
2295 );
2296 let size = size(
2297 layout.hitbox.size.width,
2298 layout.position_map.line_height * (end_row - start_row.0 + 1) as f32,
2299 );
2300 let active_line_bg = cx.theme().colors().editor_active_line_background;
2301 cx.paint_quad(fill(Bounds { origin, size }, active_line_bg));
2302 }
2303 }
2304
2305 let mut paint_highlight =
2306 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
2307 let origin = point(
2308 layout.hitbox.origin.x,
2309 layout.hitbox.origin.y
2310 + (highlight_row_start.as_f32() - scroll_top)
2311 * layout.position_map.line_height,
2312 );
2313 let size = size(
2314 layout.hitbox.size.width,
2315 layout.position_map.line_height
2316 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
2317 );
2318 cx.paint_quad(fill(Bounds { origin, size }, color));
2319 };
2320
2321 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
2322 for (&new_row, &new_color) in &layout.highlighted_rows {
2323 match &mut current_paint {
2324 Some((current_color, current_range)) => {
2325 let current_color = *current_color;
2326 let new_range_started = current_color != new_color
2327 || current_range.end.next_row() != new_row;
2328 if new_range_started {
2329 paint_highlight(
2330 current_range.start,
2331 current_range.end,
2332 current_color,
2333 );
2334 current_paint = Some((new_color, new_row..new_row));
2335 continue;
2336 } else {
2337 current_range.end = current_range.end.next_row();
2338 }
2339 }
2340 None => current_paint = Some((new_color, new_row..new_row)),
2341 };
2342 }
2343 if let Some((color, range)) = current_paint {
2344 paint_highlight(range.start, range.end, color);
2345 }
2346
2347 let scroll_left =
2348 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
2349
2350 for (wrap_position, active) in layout.wrap_guides.iter() {
2351 let x = (layout.text_hitbox.origin.x
2352 + *wrap_position
2353 + layout.position_map.em_width / 2.)
2354 - scroll_left;
2355
2356 let show_scrollbars = layout
2357 .scrollbar_layout
2358 .as_ref()
2359 .map_or(false, |scrollbar| scrollbar.visible);
2360 if x < layout.text_hitbox.origin.x
2361 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
2362 {
2363 continue;
2364 }
2365
2366 let color = if *active {
2367 cx.theme().colors().editor_active_wrap_guide
2368 } else {
2369 cx.theme().colors().editor_wrap_guide
2370 };
2371 cx.paint_quad(fill(
2372 Bounds {
2373 origin: point(x, layout.text_hitbox.origin.y),
2374 size: size(px(1.), layout.text_hitbox.size.height),
2375 },
2376 color,
2377 ));
2378 }
2379 }
2380 })
2381 }
2382
2383 fn paint_gutter(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2384 let line_height = layout.position_map.line_height;
2385
2386 let scroll_position = layout.position_map.snapshot.scroll_position();
2387 let scroll_top = scroll_position.y * line_height;
2388
2389 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
2390 for (_, hunk_hitbox) in &layout.display_hunks {
2391 if let Some(hunk_hitbox) = hunk_hitbox {
2392 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
2393 }
2394 }
2395
2396 let show_git_gutter = matches!(
2397 ProjectSettings::get_global(cx).git.git_gutter,
2398 Some(GitGutterSetting::TrackedFiles)
2399 );
2400 if show_git_gutter {
2401 Self::paint_diff_hunks(layout.gutter_hitbox.bounds, layout, cx)
2402 }
2403
2404 if layout.blamed_display_rows.is_some() {
2405 self.paint_blamed_display_rows(layout, cx);
2406 }
2407
2408 for (ix, line) in layout.line_numbers.iter().enumerate() {
2409 if let Some(line) = line {
2410 let line_origin = layout.gutter_hitbox.origin
2411 + point(
2412 layout.gutter_hitbox.size.width
2413 - line.width
2414 - layout.gutter_dimensions.right_padding,
2415 ix as f32 * line_height - (scroll_top % line_height),
2416 );
2417
2418 line.paint(line_origin, line_height, cx).log_err();
2419 }
2420 }
2421
2422 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2423 cx.with_element_namespace("gutter_fold_indicators", |cx| {
2424 for fold_indicator in layout.fold_indicators.iter_mut().flatten() {
2425 fold_indicator.paint(cx);
2426 }
2427 });
2428
2429 for test_indicators in layout.test_indicators.iter_mut() {
2430 test_indicators.paint(cx);
2431 }
2432
2433 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
2434 indicator.paint(cx);
2435 }
2436 });
2437 }
2438
2439 fn paint_diff_hunks(
2440 gutter_bounds: Bounds<Pixels>,
2441 layout: &EditorLayout,
2442 cx: &mut WindowContext,
2443 ) {
2444 if layout.display_hunks.is_empty() {
2445 return;
2446 }
2447
2448 let line_height = layout.position_map.line_height;
2449 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2450 for (hunk, hitbox) in &layout.display_hunks {
2451 let hunk_to_paint = match hunk {
2452 DisplayDiffHunk::Folded { .. } => {
2453 let hunk_bounds = Self::diff_hunk_bounds(
2454 &layout.position_map.snapshot,
2455 line_height,
2456 gutter_bounds,
2457 &hunk,
2458 );
2459 Some((
2460 hunk_bounds,
2461 cx.theme().status().modified,
2462 Corners::all(1. * line_height),
2463 ))
2464 }
2465 DisplayDiffHunk::Unfolded { status, .. } => {
2466 hitbox.as_ref().map(|hunk_hitbox| match status {
2467 DiffHunkStatus::Added => (
2468 hunk_hitbox.bounds,
2469 cx.theme().status().created,
2470 Corners::all(0.05 * line_height),
2471 ),
2472 DiffHunkStatus::Modified => (
2473 hunk_hitbox.bounds,
2474 cx.theme().status().modified,
2475 Corners::all(0.05 * line_height),
2476 ),
2477 DiffHunkStatus::Removed => (
2478 hunk_hitbox.bounds,
2479 cx.theme().status().deleted,
2480 Corners::all(1. * line_height),
2481 ),
2482 })
2483 }
2484 };
2485
2486 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
2487 cx.paint_quad(quad(
2488 hunk_bounds,
2489 corner_radii,
2490 background_color,
2491 Edges::default(),
2492 transparent_black(),
2493 ));
2494 }
2495 }
2496 });
2497 }
2498
2499 fn diff_hunk_bounds(
2500 snapshot: &EditorSnapshot,
2501 line_height: Pixels,
2502 bounds: Bounds<Pixels>,
2503 hunk: &DisplayDiffHunk,
2504 ) -> Bounds<Pixels> {
2505 let scroll_position = snapshot.scroll_position();
2506 let scroll_top = scroll_position.y * line_height;
2507
2508 match hunk {
2509 DisplayDiffHunk::Folded { display_row, .. } => {
2510 let start_y = display_row.as_f32() * line_height - scroll_top;
2511 let end_y = start_y + line_height;
2512
2513 let width = 0.275 * line_height;
2514 let highlight_origin = bounds.origin + point(-width, start_y);
2515 let highlight_size = size(width * 2., end_y - start_y);
2516 Bounds::new(highlight_origin, highlight_size)
2517 }
2518 DisplayDiffHunk::Unfolded {
2519 display_row_range,
2520 status,
2521 ..
2522 } => match status {
2523 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
2524 let start_row = display_row_range.start;
2525 let end_row = display_row_range.end;
2526 // If we're in a multibuffer, row range span might include an
2527 // excerpt header, so if we were to draw the marker straight away,
2528 // the hunk might include the rows of that header.
2529 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
2530 // Instead, we simply check whether the range we're dealing with includes
2531 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
2532 let end_row_in_current_excerpt = snapshot
2533 .blocks_in_range(start_row..end_row)
2534 .find_map(|(start_row, block)| {
2535 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
2536 Some(start_row)
2537 } else {
2538 None
2539 }
2540 })
2541 .unwrap_or(end_row);
2542
2543 let start_y = start_row.as_f32() * line_height - scroll_top;
2544 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
2545
2546 let width = 0.275 * line_height;
2547 let highlight_origin = bounds.origin + point(-width, start_y);
2548 let highlight_size = size(width * 2., end_y - start_y);
2549 Bounds::new(highlight_origin, highlight_size)
2550 }
2551 DiffHunkStatus::Removed => {
2552 let row = display_row_range.start;
2553
2554 let offset = line_height / 2.;
2555 let start_y = row.as_f32() * line_height - offset - scroll_top;
2556 let end_y = start_y + line_height;
2557
2558 let width = 0.35 * line_height;
2559 let highlight_origin = bounds.origin + point(-width, start_y);
2560 let highlight_size = size(width * 2., end_y - start_y);
2561 Bounds::new(highlight_origin, highlight_size)
2562 }
2563 },
2564 }
2565 }
2566
2567 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2568 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
2569 return;
2570 };
2571
2572 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2573 for mut blame_element in blamed_display_rows.into_iter() {
2574 blame_element.paint(cx);
2575 }
2576 })
2577 }
2578
2579 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2580 cx.with_content_mask(
2581 Some(ContentMask {
2582 bounds: layout.text_hitbox.bounds,
2583 }),
2584 |cx| {
2585 let cursor_style = if self
2586 .editor
2587 .read(cx)
2588 .hovered_link_state
2589 .as_ref()
2590 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
2591 {
2592 CursorStyle::PointingHand
2593 } else {
2594 CursorStyle::IBeam
2595 };
2596 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
2597
2598 cx.with_element_namespace("folds", |cx| self.paint_folds(layout, cx));
2599 let invisible_display_ranges = self.paint_highlights(layout, cx);
2600 self.paint_lines(&invisible_display_ranges, layout, cx);
2601 self.paint_redactions(layout, cx);
2602 self.paint_cursors(layout, cx);
2603 self.paint_inline_blame(layout, cx);
2604 },
2605 )
2606 }
2607
2608 fn paint_highlights(
2609 &mut self,
2610 layout: &mut EditorLayout,
2611 cx: &mut WindowContext,
2612 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
2613 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2614 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
2615 let line_end_overshoot = 0.15 * layout.position_map.line_height;
2616 for (range, color) in &layout.highlighted_ranges {
2617 self.paint_highlighted_range(
2618 range.clone(),
2619 *color,
2620 Pixels::ZERO,
2621 line_end_overshoot,
2622 layout,
2623 cx,
2624 );
2625 }
2626
2627 let corner_radius = 0.15 * layout.position_map.line_height;
2628
2629 for (player_color, selections) in &layout.selections {
2630 for selection in selections.into_iter() {
2631 self.paint_highlighted_range(
2632 selection.range.clone(),
2633 player_color.selection,
2634 corner_radius,
2635 corner_radius * 2.,
2636 layout,
2637 cx,
2638 );
2639
2640 if selection.is_local && !selection.range.is_empty() {
2641 invisible_display_ranges.push(selection.range.clone());
2642 }
2643 }
2644 }
2645 invisible_display_ranges
2646 })
2647 }
2648
2649 fn paint_lines(
2650 &mut self,
2651 invisible_display_ranges: &[Range<DisplayPoint>],
2652 layout: &EditorLayout,
2653 cx: &mut WindowContext,
2654 ) {
2655 let whitespace_setting = self
2656 .editor
2657 .read(cx)
2658 .buffer
2659 .read(cx)
2660 .settings_at(0, cx)
2661 .show_whitespaces;
2662
2663 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
2664 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
2665 line_with_invisibles.draw(
2666 layout,
2667 row,
2668 layout.content_origin,
2669 whitespace_setting,
2670 invisible_display_ranges,
2671 cx,
2672 )
2673 }
2674 }
2675
2676 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
2677 if layout.redacted_ranges.is_empty() {
2678 return;
2679 }
2680
2681 let line_end_overshoot = layout.line_end_overshoot();
2682
2683 // A softer than perfect black
2684 let redaction_color = gpui::rgb(0x0e1111);
2685
2686 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2687 for range in layout.redacted_ranges.iter() {
2688 self.paint_highlighted_range(
2689 range.clone(),
2690 redaction_color.into(),
2691 Pixels::ZERO,
2692 line_end_overshoot,
2693 layout,
2694 cx,
2695 );
2696 }
2697 });
2698 }
2699
2700 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2701 for cursor in &mut layout.visible_cursors {
2702 cursor.paint(layout.content_origin, cx);
2703 }
2704 }
2705
2706 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2707 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
2708 return;
2709 };
2710
2711 let thumb_bounds = scrollbar_layout.thumb_bounds();
2712 if scrollbar_layout.visible {
2713 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
2714 cx.paint_quad(quad(
2715 scrollbar_layout.hitbox.bounds,
2716 Corners::default(),
2717 cx.theme().colors().scrollbar_track_background,
2718 Edges {
2719 top: Pixels::ZERO,
2720 right: Pixels::ZERO,
2721 bottom: Pixels::ZERO,
2722 left: ScrollbarLayout::BORDER_WIDTH,
2723 },
2724 cx.theme().colors().scrollbar_track_border,
2725 ));
2726
2727 let fast_markers =
2728 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
2729 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
2730 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
2731
2732 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
2733 for marker in markers.iter().chain(&fast_markers) {
2734 let mut marker = marker.clone();
2735 marker.bounds.origin += scrollbar_layout.hitbox.origin;
2736 cx.paint_quad(marker);
2737 }
2738
2739 cx.paint_quad(quad(
2740 thumb_bounds,
2741 Corners::default(),
2742 cx.theme().colors().scrollbar_thumb_background,
2743 Edges {
2744 top: Pixels::ZERO,
2745 right: Pixels::ZERO,
2746 bottom: Pixels::ZERO,
2747 left: ScrollbarLayout::BORDER_WIDTH,
2748 },
2749 cx.theme().colors().scrollbar_thumb_border,
2750 ));
2751 });
2752 }
2753
2754 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
2755
2756 let row_height = scrollbar_layout.row_height;
2757 let row_range = scrollbar_layout.visible_row_range.clone();
2758
2759 cx.on_mouse_event({
2760 let editor = self.editor.clone();
2761 let hitbox = scrollbar_layout.hitbox.clone();
2762 let mut mouse_position = cx.mouse_position();
2763 move |event: &MouseMoveEvent, phase, cx| {
2764 if phase == DispatchPhase::Capture {
2765 return;
2766 }
2767
2768 editor.update(cx, |editor, cx| {
2769 if event.pressed_button == Some(MouseButton::Left)
2770 && editor.scroll_manager.is_dragging_scrollbar()
2771 {
2772 let y = mouse_position.y;
2773 let new_y = event.position.y;
2774 if (hitbox.top()..hitbox.bottom()).contains(&y) {
2775 let mut position = editor.scroll_position(cx);
2776 position.y += (new_y - y) / row_height;
2777 if position.y < 0.0 {
2778 position.y = 0.0;
2779 }
2780 editor.set_scroll_position(position, cx);
2781 }
2782
2783 cx.stop_propagation();
2784 } else {
2785 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2786 if hitbox.is_hovered(cx) {
2787 editor.scroll_manager.show_scrollbar(cx);
2788 }
2789 }
2790 mouse_position = event.position;
2791 })
2792 }
2793 });
2794
2795 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
2796 cx.on_mouse_event({
2797 let editor = self.editor.clone();
2798 move |_: &MouseUpEvent, phase, cx| {
2799 if phase == DispatchPhase::Capture {
2800 return;
2801 }
2802
2803 editor.update(cx, |editor, cx| {
2804 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2805 cx.stop_propagation();
2806 });
2807 }
2808 });
2809 } else {
2810 cx.on_mouse_event({
2811 let editor = self.editor.clone();
2812 let hitbox = scrollbar_layout.hitbox.clone();
2813 move |event: &MouseDownEvent, phase, cx| {
2814 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
2815 return;
2816 }
2817
2818 editor.update(cx, |editor, cx| {
2819 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
2820
2821 let y = event.position.y;
2822 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
2823 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
2824 let top_row = center_row
2825 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
2826 let mut position = editor.scroll_position(cx);
2827 position.y = top_row as f32;
2828 editor.set_scroll_position(position, cx);
2829 } else {
2830 editor.scroll_manager.show_scrollbar(cx);
2831 }
2832
2833 cx.stop_propagation();
2834 });
2835 }
2836 });
2837 }
2838 }
2839
2840 fn collect_fast_scrollbar_markers(
2841 &self,
2842 layout: &EditorLayout,
2843 scrollbar_layout: &ScrollbarLayout,
2844 cx: &mut WindowContext,
2845 ) -> Vec<PaintQuad> {
2846 const LIMIT: usize = 100;
2847 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
2848 return vec![];
2849 }
2850 let cursor_ranges = layout
2851 .cursors
2852 .iter()
2853 .map(|(point, color)| ColoredRange {
2854 start: point.row(),
2855 end: point.row(),
2856 color: *color,
2857 })
2858 .collect_vec();
2859 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
2860 }
2861
2862 fn refresh_slow_scrollbar_markers(
2863 &self,
2864 layout: &EditorLayout,
2865 scrollbar_layout: &ScrollbarLayout,
2866 cx: &mut WindowContext,
2867 ) {
2868 self.editor.update(cx, |editor, cx| {
2869 if !editor.is_singleton(cx)
2870 || !editor
2871 .scrollbar_marker_state
2872 .should_refresh(scrollbar_layout.hitbox.size)
2873 {
2874 return;
2875 }
2876
2877 let scrollbar_layout = scrollbar_layout.clone();
2878 let background_highlights = editor.background_highlights.clone();
2879 let snapshot = layout.position_map.snapshot.clone();
2880 let theme = cx.theme().clone();
2881 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
2882
2883 editor.scrollbar_marker_state.dirty = false;
2884 editor.scrollbar_marker_state.pending_refresh =
2885 Some(cx.spawn(|editor, mut cx| async move {
2886 let scrollbar_size = scrollbar_layout.hitbox.size;
2887 let scrollbar_markers = cx
2888 .background_executor()
2889 .spawn(async move {
2890 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
2891 let mut marker_quads = Vec::new();
2892 if scrollbar_settings.git_diff {
2893 let marker_row_ranges = snapshot
2894 .buffer_snapshot
2895 .git_diff_hunks_in_range(
2896 MultiBufferRow::MIN..MultiBufferRow::MAX,
2897 )
2898 .map(|hunk| {
2899 let start_display_row =
2900 MultiBufferPoint::new(hunk.associated_range.start.0, 0)
2901 .to_display_point(&snapshot.display_snapshot)
2902 .row();
2903 let mut end_display_row =
2904 MultiBufferPoint::new(hunk.associated_range.end.0, 0)
2905 .to_display_point(&snapshot.display_snapshot)
2906 .row();
2907 if end_display_row != start_display_row {
2908 end_display_row.0 -= 1;
2909 }
2910 let color = match hunk_status(&hunk) {
2911 DiffHunkStatus::Added => theme.status().created,
2912 DiffHunkStatus::Modified => theme.status().modified,
2913 DiffHunkStatus::Removed => theme.status().deleted,
2914 };
2915 ColoredRange {
2916 start: start_display_row,
2917 end: end_display_row,
2918 color,
2919 }
2920 });
2921
2922 marker_quads.extend(
2923 scrollbar_layout
2924 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
2925 );
2926 }
2927
2928 for (background_highlight_id, (_, background_ranges)) in
2929 background_highlights.iter()
2930 {
2931 let is_search_highlights = *background_highlight_id
2932 == TypeId::of::<BufferSearchHighlights>();
2933 let is_symbol_occurrences = *background_highlight_id
2934 == TypeId::of::<DocumentHighlightRead>()
2935 || *background_highlight_id
2936 == TypeId::of::<DocumentHighlightWrite>();
2937 if (is_search_highlights && scrollbar_settings.search_results)
2938 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
2939 {
2940 let mut color = theme.status().info;
2941 if is_symbol_occurrences {
2942 color.fade_out(0.5);
2943 }
2944 let marker_row_ranges =
2945 background_ranges.into_iter().map(|range| {
2946 let display_start = range
2947 .start
2948 .to_display_point(&snapshot.display_snapshot);
2949 let display_end = range
2950 .end
2951 .to_display_point(&snapshot.display_snapshot);
2952 ColoredRange {
2953 start: display_start.row(),
2954 end: display_end.row(),
2955 color,
2956 }
2957 });
2958 marker_quads.extend(
2959 scrollbar_layout
2960 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
2961 );
2962 }
2963 }
2964
2965 if scrollbar_settings.diagnostics {
2966 let diagnostics = snapshot
2967 .buffer_snapshot
2968 .diagnostics_in_range::<_, Point>(
2969 Point::zero()..max_point,
2970 false,
2971 )
2972 // We want to sort by severity, in order to paint the most severe diagnostics last.
2973 .sorted_by_key(|diagnostic| {
2974 std::cmp::Reverse(diagnostic.diagnostic.severity)
2975 });
2976
2977 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
2978 let start_display = diagnostic
2979 .range
2980 .start
2981 .to_display_point(&snapshot.display_snapshot);
2982 let end_display = diagnostic
2983 .range
2984 .end
2985 .to_display_point(&snapshot.display_snapshot);
2986 let color = match diagnostic.diagnostic.severity {
2987 DiagnosticSeverity::ERROR => theme.status().error,
2988 DiagnosticSeverity::WARNING => theme.status().warning,
2989 DiagnosticSeverity::INFORMATION => theme.status().info,
2990 _ => theme.status().hint,
2991 };
2992 ColoredRange {
2993 start: start_display.row(),
2994 end: end_display.row(),
2995 color,
2996 }
2997 });
2998 marker_quads.extend(
2999 scrollbar_layout
3000 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
3001 );
3002 }
3003
3004 Arc::from(marker_quads)
3005 })
3006 .await;
3007
3008 editor.update(&mut cx, |editor, cx| {
3009 editor.scrollbar_marker_state.markers = scrollbar_markers;
3010 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
3011 editor.scrollbar_marker_state.pending_refresh = None;
3012 cx.notify();
3013 })?;
3014
3015 Ok(())
3016 }));
3017 });
3018 }
3019
3020 #[allow(clippy::too_many_arguments)]
3021 fn paint_highlighted_range(
3022 &self,
3023 range: Range<DisplayPoint>,
3024 color: Hsla,
3025 corner_radius: Pixels,
3026 line_end_overshoot: Pixels,
3027 layout: &EditorLayout,
3028 cx: &mut WindowContext,
3029 ) {
3030 let start_row = layout.visible_display_row_range.start;
3031 let end_row = layout.visible_display_row_range.end;
3032 if range.start != range.end {
3033 let row_range = if range.end.column() == 0 {
3034 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3035 } else {
3036 cmp::max(range.start.row(), start_row)
3037 ..cmp::min(range.end.row().next_row(), end_row)
3038 };
3039
3040 let highlighted_range = HighlightedRange {
3041 color,
3042 line_height: layout.position_map.line_height,
3043 corner_radius,
3044 start_y: layout.content_origin.y
3045 + row_range.start.as_f32() * layout.position_map.line_height
3046 - layout.position_map.scroll_pixel_position.y,
3047 lines: row_range
3048 .iter_rows()
3049 .map(|row| {
3050 let line_layout =
3051 &layout.position_map.line_layouts[row.minus(start_row) as usize].line;
3052 HighlightedRangeLine {
3053 start_x: if row == range.start.row() {
3054 layout.content_origin.x
3055 + line_layout.x_for_index(range.start.column() as usize)
3056 - layout.position_map.scroll_pixel_position.x
3057 } else {
3058 layout.content_origin.x
3059 - layout.position_map.scroll_pixel_position.x
3060 },
3061 end_x: if row == range.end.row() {
3062 layout.content_origin.x
3063 + line_layout.x_for_index(range.end.column() as usize)
3064 - layout.position_map.scroll_pixel_position.x
3065 } else {
3066 layout.content_origin.x + line_layout.width + line_end_overshoot
3067 - layout.position_map.scroll_pixel_position.x
3068 },
3069 }
3070 })
3071 .collect(),
3072 };
3073
3074 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3075 }
3076 }
3077
3078 fn paint_folds(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3079 if layout.folds.is_empty() {
3080 return;
3081 }
3082
3083 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3084 let fold_corner_radius = 0.15 * layout.position_map.line_height;
3085 for mut fold in mem::take(&mut layout.folds) {
3086 fold.hover_element.paint(cx);
3087
3088 let hover_element = fold.hover_element.downcast_mut::<Stateful<Div>>().unwrap();
3089 let fold_background = if hover_element.interactivity().active.unwrap() {
3090 cx.theme().colors().ghost_element_active
3091 } else if hover_element.interactivity().hovered.unwrap() {
3092 cx.theme().colors().ghost_element_hover
3093 } else {
3094 cx.theme().colors().ghost_element_background
3095 };
3096
3097 self.paint_highlighted_range(
3098 fold.display_range.clone(),
3099 fold_background,
3100 fold_corner_radius,
3101 fold_corner_radius * 2.,
3102 layout,
3103 cx,
3104 );
3105 }
3106 })
3107 }
3108
3109 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3110 if let Some(mut inline_blame) = layout.inline_blame.take() {
3111 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3112 inline_blame.paint(cx);
3113 })
3114 }
3115 }
3116
3117 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3118 for mut block in layout.blocks.drain(..) {
3119 block.element.paint(cx);
3120 }
3121 }
3122
3123 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3124 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3125 mouse_context_menu.paint(cx);
3126 }
3127 }
3128
3129 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3130 cx.on_mouse_event({
3131 let position_map = layout.position_map.clone();
3132 let editor = self.editor.clone();
3133 let hitbox = layout.hitbox.clone();
3134 let mut delta = ScrollDelta::default();
3135
3136 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3137 // accidentally turn off their scrolling.
3138 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3139
3140 move |event: &ScrollWheelEvent, phase, cx| {
3141 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3142 delta = delta.coalesce(event.delta);
3143 editor.update(cx, |editor, cx| {
3144 let position_map: &PositionMap = &position_map;
3145
3146 let line_height = position_map.line_height;
3147 let max_glyph_width = position_map.em_width;
3148 let (delta, axis) = match delta {
3149 gpui::ScrollDelta::Pixels(mut pixels) => {
3150 //Trackpad
3151 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3152 (pixels, axis)
3153 }
3154
3155 gpui::ScrollDelta::Lines(lines) => {
3156 //Not trackpad
3157 let pixels =
3158 point(lines.x * max_glyph_width, lines.y * line_height);
3159 (pixels, None)
3160 }
3161 };
3162
3163 let current_scroll_position = position_map.snapshot.scroll_position();
3164 let x = (current_scroll_position.x * max_glyph_width
3165 - (delta.x * scroll_sensitivity))
3166 / max_glyph_width;
3167 let y = (current_scroll_position.y * line_height
3168 - (delta.y * scroll_sensitivity))
3169 / line_height;
3170 let mut scroll_position =
3171 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
3172 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
3173 if forbid_vertical_scroll {
3174 scroll_position.y = current_scroll_position.y;
3175 if scroll_position == current_scroll_position {
3176 return;
3177 }
3178 }
3179 editor.scroll(scroll_position, axis, cx);
3180 cx.stop_propagation();
3181 });
3182 }
3183 }
3184 });
3185 }
3186
3187 fn paint_mouse_listeners(
3188 &mut self,
3189 layout: &EditorLayout,
3190 hovered_hunk: Option<HunkToExpand>,
3191 cx: &mut WindowContext,
3192 ) {
3193 self.paint_scroll_wheel_listener(layout, cx);
3194
3195 cx.on_mouse_event({
3196 let position_map = layout.position_map.clone();
3197 let editor = self.editor.clone();
3198 let text_hitbox = layout.text_hitbox.clone();
3199 let gutter_hitbox = layout.gutter_hitbox.clone();
3200
3201 move |event: &MouseDownEvent, phase, cx| {
3202 if phase == DispatchPhase::Bubble {
3203 match event.button {
3204 MouseButton::Left => editor.update(cx, |editor, cx| {
3205 Self::mouse_left_down(
3206 editor,
3207 event,
3208 hovered_hunk.as_ref(),
3209 &position_map,
3210 &text_hitbox,
3211 &gutter_hitbox,
3212 cx,
3213 );
3214 }),
3215 MouseButton::Right => editor.update(cx, |editor, cx| {
3216 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
3217 }),
3218 MouseButton::Middle => editor.update(cx, |editor, cx| {
3219 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
3220 }),
3221 _ => {}
3222 };
3223 }
3224 }
3225 });
3226
3227 cx.on_mouse_event({
3228 let editor = self.editor.clone();
3229 let position_map = layout.position_map.clone();
3230 let text_hitbox = layout.text_hitbox.clone();
3231
3232 move |event: &MouseUpEvent, phase, cx| {
3233 if phase == DispatchPhase::Bubble {
3234 editor.update(cx, |editor, cx| {
3235 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
3236 });
3237 }
3238 }
3239 });
3240 cx.on_mouse_event({
3241 let position_map = layout.position_map.clone();
3242 let editor = self.editor.clone();
3243 let text_hitbox = layout.text_hitbox.clone();
3244 let gutter_hitbox = layout.gutter_hitbox.clone();
3245
3246 move |event: &MouseMoveEvent, phase, cx| {
3247 if phase == DispatchPhase::Bubble {
3248 editor.update(cx, |editor, cx| {
3249 if event.pressed_button == Some(MouseButton::Left) {
3250 Self::mouse_dragged(
3251 editor,
3252 event,
3253 &position_map,
3254 text_hitbox.bounds,
3255 cx,
3256 )
3257 }
3258
3259 Self::mouse_moved(
3260 editor,
3261 event,
3262 &position_map,
3263 &text_hitbox,
3264 &gutter_hitbox,
3265 cx,
3266 )
3267 });
3268 }
3269 }
3270 });
3271 }
3272
3273 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
3274 bounds.upper_right().x - self.style.scrollbar_width
3275 }
3276
3277 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
3278 let style = &self.style;
3279 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3280 let layout = cx
3281 .text_system()
3282 .shape_line(
3283 SharedString::from(" ".repeat(column)),
3284 font_size,
3285 &[TextRun {
3286 len: column,
3287 font: style.text.font(),
3288 color: Hsla::default(),
3289 background_color: None,
3290 underline: None,
3291 strikethrough: None,
3292 }],
3293 )
3294 .unwrap();
3295
3296 layout.width
3297 }
3298
3299 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
3300 let digit_count = snapshot
3301 .max_buffer_row()
3302 .next_row()
3303 .as_f32()
3304 .log10()
3305 .floor() as usize
3306 + 1;
3307 self.column_pixels(digit_count, cx)
3308 }
3309}
3310
3311fn prepaint_gutter_button(
3312 button: IconButton,
3313 row: DisplayRow,
3314 line_height: Pixels,
3315 gutter_dimensions: &GutterDimensions,
3316 scroll_pixel_position: gpui::Point<Pixels>,
3317 gutter_hitbox: &Hitbox,
3318 cx: &mut WindowContext<'_>,
3319) -> AnyElement {
3320 let mut button = button.into_any_element();
3321 let available_space = size(
3322 AvailableSpace::MinContent,
3323 AvailableSpace::Definite(line_height),
3324 );
3325 let indicator_size = button.layout_as_root(available_space, cx);
3326
3327 let blame_width = gutter_dimensions
3328 .git_blame_entries_width
3329 .unwrap_or(Pixels::ZERO);
3330
3331 let mut x = blame_width;
3332 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
3333 - indicator_size.width
3334 - blame_width;
3335 x += available_width / 2.;
3336
3337 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
3338 y += (line_height - indicator_size.height) / 2.;
3339
3340 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
3341 button
3342}
3343
3344fn render_inline_blame_entry(
3345 blame: &gpui::Model<GitBlame>,
3346 blame_entry: BlameEntry,
3347 style: &EditorStyle,
3348 workspace: Option<WeakView<Workspace>>,
3349 cx: &mut WindowContext<'_>,
3350) -> AnyElement {
3351 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3352
3353 let author = blame_entry.author.as_deref().unwrap_or_default();
3354 let text = format!("{}, {}", author, relative_timestamp);
3355
3356 let details = blame.read(cx).details_for_entry(&blame_entry);
3357
3358 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
3359
3360 h_flex()
3361 .id("inline-blame")
3362 .w_full()
3363 .font_family(style.text.font().family)
3364 .text_color(cx.theme().status().hint)
3365 .line_height(style.text.line_height)
3366 .child(Icon::new(IconName::FileGit).color(Color::Hint))
3367 .child(text)
3368 .gap_2()
3369 .hoverable_tooltip(move |_| tooltip.clone().into())
3370 .into_any()
3371}
3372
3373fn render_blame_entry(
3374 ix: usize,
3375 blame: &gpui::Model<GitBlame>,
3376 blame_entry: BlameEntry,
3377 style: &EditorStyle,
3378 last_used_color: &mut Option<(PlayerColor, Oid)>,
3379 editor: View<Editor>,
3380 cx: &mut WindowContext<'_>,
3381) -> AnyElement {
3382 let mut sha_color = cx
3383 .theme()
3384 .players()
3385 .color_for_participant(blame_entry.sha.into());
3386 // If the last color we used is the same as the one we get for this line, but
3387 // the commit SHAs are different, then we try again to get a different color.
3388 match *last_used_color {
3389 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
3390 let index: u32 = blame_entry.sha.into();
3391 sha_color = cx.theme().players().color_for_participant(index + 1);
3392 }
3393 _ => {}
3394 };
3395 last_used_color.replace((sha_color, blame_entry.sha));
3396
3397 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3398
3399 let short_commit_id = blame_entry.sha.display_short();
3400
3401 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
3402 let name = util::truncate_and_trailoff(author_name, 20);
3403
3404 let details = blame.read(cx).details_for_entry(&blame_entry);
3405
3406 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
3407
3408 let tooltip = cx.new_view(|_| {
3409 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
3410 });
3411
3412 h_flex()
3413 .w_full()
3414 .font_family(style.text.font().family)
3415 .line_height(style.text.line_height)
3416 .id(("blame", ix))
3417 .children([
3418 div()
3419 .text_color(sha_color.cursor)
3420 .child(short_commit_id)
3421 .mr_2(),
3422 div()
3423 .w_full()
3424 .h_flex()
3425 .justify_between()
3426 .text_color(cx.theme().status().hint)
3427 .child(name)
3428 .child(relative_timestamp),
3429 ])
3430 .on_mouse_down(MouseButton::Right, {
3431 let blame_entry = blame_entry.clone();
3432 move |event, cx| {
3433 deploy_blame_entry_context_menu(&blame_entry, editor.clone(), event.position, cx);
3434 }
3435 })
3436 .hover(|style| style.bg(cx.theme().colors().element_hover))
3437 .when_some(
3438 details.and_then(|details| details.permalink),
3439 |this, url| {
3440 let url = url.clone();
3441 this.cursor_pointer().on_click(move |_, cx| {
3442 cx.stop_propagation();
3443 cx.open_url(url.as_str())
3444 })
3445 },
3446 )
3447 .hoverable_tooltip(move |_| tooltip.clone().into())
3448 .into_any()
3449}
3450
3451fn deploy_blame_entry_context_menu(
3452 blame_entry: &BlameEntry,
3453 editor: View<Editor>,
3454 position: gpui::Point<Pixels>,
3455 cx: &mut WindowContext<'_>,
3456) {
3457 let context_menu = ContextMenu::build(cx, move |this, _| {
3458 let sha = format!("{}", blame_entry.sha);
3459 this.entry("Copy commit SHA", None, move |cx| {
3460 cx.write_to_clipboard(ClipboardItem::new(sha.clone()));
3461 })
3462 });
3463
3464 editor.update(cx, move |editor, cx| {
3465 editor.mouse_context_menu = Some(MouseContextMenu::new(position, context_menu, cx));
3466 cx.notify();
3467 });
3468}
3469
3470#[derive(Debug)]
3471pub(crate) struct LineWithInvisibles {
3472 pub line: ShapedLine,
3473 invisibles: Vec<Invisible>,
3474}
3475
3476impl LineWithInvisibles {
3477 fn from_chunks<'a>(
3478 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
3479 text_style: &TextStyle,
3480 max_line_len: usize,
3481 max_line_count: usize,
3482 line_number_layouts: &[Option<ShapedLine>],
3483 editor_mode: EditorMode,
3484 cx: &WindowContext,
3485 ) -> Vec<Self> {
3486 let mut layouts = Vec::with_capacity(max_line_count);
3487 let mut line = String::new();
3488 let mut invisibles = Vec::new();
3489 let mut styles = Vec::new();
3490 let mut non_whitespace_added = false;
3491 let mut row = 0;
3492 let mut line_exceeded_max_len = false;
3493 let font_size = text_style.font_size.to_pixels(cx.rem_size());
3494
3495 for highlighted_chunk in chunks.chain([HighlightedChunk {
3496 chunk: "\n",
3497 style: None,
3498 is_tab: false,
3499 }]) {
3500 for (ix, mut line_chunk) in highlighted_chunk.chunk.split('\n').enumerate() {
3501 if ix > 0 {
3502 let shaped_line = cx
3503 .text_system()
3504 .shape_line(line.clone().into(), font_size, &styles)
3505 .unwrap();
3506 layouts.push(Self {
3507 line: shaped_line,
3508 invisibles: std::mem::take(&mut invisibles),
3509 });
3510
3511 line.clear();
3512 styles.clear();
3513 row += 1;
3514 line_exceeded_max_len = false;
3515 non_whitespace_added = false;
3516 if row == max_line_count {
3517 return layouts;
3518 }
3519 }
3520
3521 if !line_chunk.is_empty() && !line_exceeded_max_len {
3522 let text_style = if let Some(style) = highlighted_chunk.style {
3523 Cow::Owned(text_style.clone().highlight(style))
3524 } else {
3525 Cow::Borrowed(text_style)
3526 };
3527
3528 if line.len() + line_chunk.len() > max_line_len {
3529 let mut chunk_len = max_line_len - line.len();
3530 while !line_chunk.is_char_boundary(chunk_len) {
3531 chunk_len -= 1;
3532 }
3533 line_chunk = &line_chunk[..chunk_len];
3534 line_exceeded_max_len = true;
3535 }
3536
3537 styles.push(TextRun {
3538 len: line_chunk.len(),
3539 font: text_style.font(),
3540 color: text_style.color,
3541 background_color: text_style.background_color,
3542 underline: text_style.underline,
3543 strikethrough: text_style.strikethrough,
3544 });
3545
3546 if editor_mode == EditorMode::Full {
3547 // Line wrap pads its contents with fake whitespaces,
3548 // avoid printing them
3549 let inside_wrapped_string = line_number_layouts
3550 .get(row)
3551 .and_then(|layout| layout.as_ref())
3552 .is_none();
3553 if highlighted_chunk.is_tab {
3554 if non_whitespace_added || !inside_wrapped_string {
3555 invisibles.push(Invisible::Tab {
3556 line_start_offset: line.len(),
3557 });
3558 }
3559 } else {
3560 invisibles.extend(
3561 line_chunk
3562 .chars()
3563 .enumerate()
3564 .filter(|(_, line_char)| {
3565 let is_whitespace = line_char.is_whitespace();
3566 non_whitespace_added |= !is_whitespace;
3567 is_whitespace
3568 && (non_whitespace_added || !inside_wrapped_string)
3569 })
3570 .map(|(whitespace_index, _)| Invisible::Whitespace {
3571 line_offset: line.len() + whitespace_index,
3572 }),
3573 )
3574 }
3575 }
3576
3577 line.push_str(line_chunk);
3578 }
3579 }
3580 }
3581
3582 layouts
3583 }
3584
3585 fn draw(
3586 &self,
3587 layout: &EditorLayout,
3588 row: DisplayRow,
3589 content_origin: gpui::Point<Pixels>,
3590 whitespace_setting: ShowWhitespaceSetting,
3591 selection_ranges: &[Range<DisplayPoint>],
3592 cx: &mut WindowContext,
3593 ) {
3594 let line_height = layout.position_map.line_height;
3595 let line_y = line_height
3596 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
3597
3598 let line_origin =
3599 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
3600 self.line.paint(line_origin, line_height, cx).log_err();
3601
3602 self.draw_invisibles(
3603 &selection_ranges,
3604 layout,
3605 content_origin,
3606 line_y,
3607 row,
3608 line_height,
3609 whitespace_setting,
3610 cx,
3611 );
3612 }
3613
3614 #[allow(clippy::too_many_arguments)]
3615 fn draw_invisibles(
3616 &self,
3617 selection_ranges: &[Range<DisplayPoint>],
3618 layout: &EditorLayout,
3619 content_origin: gpui::Point<Pixels>,
3620 line_y: Pixels,
3621 row: DisplayRow,
3622 line_height: Pixels,
3623 whitespace_setting: ShowWhitespaceSetting,
3624 cx: &mut WindowContext,
3625 ) {
3626 let allowed_invisibles_regions = match whitespace_setting {
3627 ShowWhitespaceSetting::None => return,
3628 ShowWhitespaceSetting::Selection => Some(selection_ranges),
3629 ShowWhitespaceSetting::All => None,
3630 };
3631
3632 for invisible in &self.invisibles {
3633 let (&token_offset, invisible_symbol) = match invisible {
3634 Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
3635 Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
3636 };
3637
3638 let x_offset = self.line.x_for_index(token_offset);
3639 let invisible_offset =
3640 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
3641 let origin = content_origin
3642 + gpui::point(
3643 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
3644 line_y,
3645 );
3646
3647 if let Some(allowed_regions) = allowed_invisibles_regions {
3648 let invisible_point = DisplayPoint::new(row, token_offset as u32);
3649 if !allowed_regions
3650 .iter()
3651 .any(|region| region.start <= invisible_point && invisible_point < region.end)
3652 {
3653 continue;
3654 }
3655 }
3656 invisible_symbol.paint(origin, line_height, cx).log_err();
3657 }
3658 }
3659}
3660
3661#[derive(Debug, Clone, Copy, PartialEq, Eq)]
3662enum Invisible {
3663 Tab { line_start_offset: usize },
3664 Whitespace { line_offset: usize },
3665}
3666
3667impl Element for EditorElement {
3668 type RequestLayoutState = ();
3669 type PrepaintState = EditorLayout;
3670
3671 fn id(&self) -> Option<ElementId> {
3672 None
3673 }
3674
3675 fn request_layout(
3676 &mut self,
3677 _: Option<&GlobalElementId>,
3678 cx: &mut WindowContext,
3679 ) -> (gpui::LayoutId, ()) {
3680 self.editor.update(cx, |editor, cx| {
3681 editor.set_style(self.style.clone(), cx);
3682
3683 let layout_id = match editor.mode {
3684 EditorMode::SingleLine => {
3685 let rem_size = cx.rem_size();
3686 let mut style = Style::default();
3687 style.size.width = relative(1.).into();
3688 style.size.height = self.style.text.line_height_in_pixels(rem_size).into();
3689 cx.request_layout(style, None)
3690 }
3691 EditorMode::AutoHeight { max_lines } => {
3692 let editor_handle = cx.view().clone();
3693 let max_line_number_width =
3694 self.max_line_number_width(&editor.snapshot(cx), cx);
3695 cx.request_measured_layout(
3696 Style::default(),
3697 move |known_dimensions, available_space, cx| {
3698 editor_handle
3699 .update(cx, |editor, cx| {
3700 compute_auto_height_layout(
3701 editor,
3702 max_lines,
3703 max_line_number_width,
3704 known_dimensions,
3705 available_space.width,
3706 cx,
3707 )
3708 })
3709 .unwrap_or_default()
3710 },
3711 )
3712 }
3713 EditorMode::Full => {
3714 let mut style = Style::default();
3715 style.size.width = relative(1.).into();
3716 style.size.height = relative(1.).into();
3717 cx.request_layout(style, None)
3718 }
3719 };
3720
3721 (layout_id, ())
3722 })
3723 }
3724
3725 fn prepaint(
3726 &mut self,
3727 _: Option<&GlobalElementId>,
3728 bounds: Bounds<Pixels>,
3729 _: &mut Self::RequestLayoutState,
3730 cx: &mut WindowContext,
3731 ) -> Self::PrepaintState {
3732 let text_style = TextStyleRefinement {
3733 font_size: Some(self.style.text.font_size),
3734 line_height: Some(self.style.text.line_height),
3735 ..Default::default()
3736 };
3737 cx.set_view_id(self.editor.entity_id());
3738 cx.with_text_style(Some(text_style), |cx| {
3739 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
3740 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
3741 let style = self.style.clone();
3742
3743 let font_id = cx.text_system().resolve_font(&style.text.font());
3744 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3745 let line_height = style.text.line_height_in_pixels(cx.rem_size());
3746 let em_width = cx
3747 .text_system()
3748 .typographic_bounds(font_id, font_size, 'm')
3749 .unwrap()
3750 .size
3751 .width;
3752 let em_advance = cx
3753 .text_system()
3754 .advance(font_id, font_size, 'm')
3755 .unwrap()
3756 .width;
3757
3758 let gutter_dimensions = snapshot.gutter_dimensions(
3759 font_id,
3760 font_size,
3761 em_width,
3762 self.max_line_number_width(&snapshot, cx),
3763 cx,
3764 );
3765 let text_width = bounds.size.width - gutter_dimensions.width;
3766 let overscroll = size(em_width, px(0.));
3767
3768 snapshot = self.editor.update(cx, |editor, cx| {
3769 editor.last_bounds = Some(bounds);
3770 editor.gutter_dimensions = gutter_dimensions;
3771 editor.set_visible_line_count(bounds.size.height / line_height, cx);
3772
3773 let editor_width =
3774 text_width - gutter_dimensions.margin - overscroll.width - em_width;
3775 let wrap_width = match editor.soft_wrap_mode(cx) {
3776 SoftWrap::None => None,
3777 SoftWrap::PreferLine => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
3778 SoftWrap::EditorWidth => Some(editor_width),
3779 SoftWrap::Column(column) => {
3780 Some(editor_width.min(column as f32 * em_advance))
3781 }
3782 };
3783
3784 if editor.set_wrap_width(wrap_width, cx) {
3785 editor.snapshot(cx)
3786 } else {
3787 snapshot
3788 }
3789 });
3790
3791 let wrap_guides = self
3792 .editor
3793 .read(cx)
3794 .wrap_guides(cx)
3795 .iter()
3796 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
3797 .collect::<SmallVec<[_; 2]>>();
3798
3799 let hitbox = cx.insert_hitbox(bounds, false);
3800 let gutter_hitbox = cx.insert_hitbox(
3801 Bounds {
3802 origin: bounds.origin,
3803 size: size(gutter_dimensions.width, bounds.size.height),
3804 },
3805 false,
3806 );
3807 let text_hitbox = cx.insert_hitbox(
3808 Bounds {
3809 origin: gutter_hitbox.upper_right(),
3810 size: size(text_width, bounds.size.height),
3811 },
3812 false,
3813 );
3814 // Offset the content_bounds from the text_bounds by the gutter margin (which
3815 // is roughly half a character wide) to make hit testing work more like how we want.
3816 let content_origin =
3817 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
3818
3819 let mut autoscroll_containing_element = false;
3820 let mut autoscroll_horizontally = false;
3821 self.editor.update(cx, |editor, cx| {
3822 autoscroll_containing_element =
3823 editor.autoscroll_requested() || editor.has_pending_selection();
3824 autoscroll_horizontally = editor.autoscroll_vertically(bounds, line_height, cx);
3825 snapshot = editor.snapshot(cx);
3826 });
3827
3828 let mut scroll_position = snapshot.scroll_position();
3829 // The scroll position is a fractional point, the whole number of which represents
3830 // the top of the window in terms of display rows.
3831 let start_row = DisplayRow(scroll_position.y as u32);
3832 let height_in_lines = bounds.size.height / line_height;
3833 let max_row = snapshot.max_point().row();
3834 let end_row = cmp::min(
3835 (scroll_position.y + height_in_lines).ceil() as u32,
3836 max_row.next_row().0,
3837 );
3838 let end_row = DisplayRow(end_row);
3839
3840 let buffer_rows = snapshot
3841 .display_rows(start_row)
3842 .take((start_row..end_row).len());
3843
3844 let start_anchor = if start_row == Default::default() {
3845 Anchor::min()
3846 } else {
3847 snapshot.buffer_snapshot.anchor_before(
3848 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
3849 )
3850 };
3851 let end_anchor = if end_row > max_row {
3852 Anchor::max()
3853 } else {
3854 snapshot.buffer_snapshot.anchor_before(
3855 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
3856 )
3857 };
3858
3859 let highlighted_rows = self.editor.update(cx, |editor, cx| {
3860 editor.highlighted_display_rows(HashSet::default(), cx)
3861 });
3862 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
3863 start_anchor..end_anchor,
3864 &snapshot.display_snapshot,
3865 cx.theme().colors(),
3866 );
3867
3868 let redacted_ranges = self.editor.read(cx).redacted_ranges(
3869 start_anchor..end_anchor,
3870 &snapshot.display_snapshot,
3871 cx,
3872 );
3873
3874 let (selections, active_rows, newest_selection_head) = self.layout_selections(
3875 start_anchor,
3876 end_anchor,
3877 &snapshot,
3878 start_row,
3879 end_row,
3880 cx,
3881 );
3882
3883 let (line_numbers, fold_statuses) = self.layout_line_numbers(
3884 start_row..end_row,
3885 buffer_rows.clone(),
3886 &active_rows,
3887 newest_selection_head,
3888 &snapshot,
3889 cx,
3890 );
3891
3892 let display_hunks = self.layout_git_gutters(
3893 line_height,
3894 &gutter_hitbox,
3895 start_row..end_row,
3896 &snapshot,
3897 cx,
3898 );
3899
3900 let mut max_visible_line_width = Pixels::ZERO;
3901 let line_layouts =
3902 self.layout_lines(start_row..end_row, &line_numbers, &snapshot, cx);
3903 for line_with_invisibles in &line_layouts {
3904 if line_with_invisibles.line.width > max_visible_line_width {
3905 max_visible_line_width = line_with_invisibles.line.width;
3906 }
3907 }
3908
3909 let longest_line_width = layout_line(snapshot.longest_row(), &snapshot, &style, cx)
3910 .unwrap()
3911 .width;
3912 let mut scroll_width =
3913 longest_line_width.max(max_visible_line_width) + overscroll.width;
3914
3915 let mut blocks = cx.with_element_namespace("blocks", |cx| {
3916 self.build_blocks(
3917 start_row..end_row,
3918 &snapshot,
3919 &hitbox,
3920 &text_hitbox,
3921 &mut scroll_width,
3922 &gutter_dimensions,
3923 em_width,
3924 gutter_dimensions.width + gutter_dimensions.margin,
3925 line_height,
3926 &line_layouts,
3927 cx,
3928 )
3929 });
3930
3931 let scroll_pixel_position = point(
3932 scroll_position.x * em_width,
3933 scroll_position.y * line_height,
3934 );
3935
3936 let mut inline_blame = None;
3937 if let Some(newest_selection_head) = newest_selection_head {
3938 let display_row = newest_selection_head.row();
3939 if (start_row..end_row).contains(&display_row) {
3940 let line_layout = &line_layouts[display_row.minus(start_row) as usize];
3941 inline_blame = self.layout_inline_blame(
3942 display_row,
3943 &snapshot.display_snapshot,
3944 line_layout,
3945 em_width,
3946 content_origin,
3947 scroll_pixel_position,
3948 line_height,
3949 cx,
3950 );
3951 }
3952 }
3953
3954 let blamed_display_rows = self.layout_blame_entries(
3955 buffer_rows.map(|display_row| {
3956 display_row.map(|row| {
3957 MultiBufferRow(DisplayPoint::new(row, 0).to_point(&snapshot).row)
3958 })
3959 }),
3960 em_width,
3961 scroll_position,
3962 line_height,
3963 &gutter_hitbox,
3964 gutter_dimensions.git_blame_entries_width,
3965 cx,
3966 );
3967
3968 let scroll_max = point(
3969 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
3970 max_row.as_f32(),
3971 );
3972
3973 self.editor.update(cx, |editor, cx| {
3974 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
3975
3976 let autoscrolled = if autoscroll_horizontally {
3977 editor.autoscroll_horizontally(
3978 start_row,
3979 text_hitbox.size.width,
3980 scroll_width,
3981 em_width,
3982 &line_layouts,
3983 cx,
3984 )
3985 } else {
3986 false
3987 };
3988
3989 if clamped || autoscrolled {
3990 snapshot = editor.snapshot(cx);
3991 scroll_position = snapshot.scroll_position();
3992 }
3993 });
3994
3995 cx.with_element_namespace("blocks", |cx| {
3996 self.layout_blocks(
3997 &mut blocks,
3998 &hitbox,
3999 line_height,
4000 scroll_pixel_position,
4001 cx,
4002 );
4003 });
4004
4005 let cursors = self.collect_cursors(&snapshot, cx);
4006 let visible_row_range = start_row..end_row;
4007 let non_visible_cursors = cursors
4008 .iter()
4009 .any(move |c| !visible_row_range.contains(&c.0.row()));
4010
4011 let visible_cursors = self.layout_visible_cursors(
4012 &snapshot,
4013 &selections,
4014 start_row..end_row,
4015 &line_layouts,
4016 &text_hitbox,
4017 content_origin,
4018 scroll_position,
4019 scroll_pixel_position,
4020 line_height,
4021 em_width,
4022 autoscroll_containing_element,
4023 cx,
4024 );
4025
4026 let scrollbar_layout = self.layout_scrollbar(
4027 &snapshot,
4028 bounds,
4029 scroll_position,
4030 height_in_lines,
4031 non_visible_cursors,
4032 cx,
4033 );
4034
4035 let folds = cx.with_element_namespace("folds", |cx| {
4036 self.layout_folds(
4037 &snapshot,
4038 content_origin,
4039 start_anchor..end_anchor,
4040 start_row..end_row,
4041 scroll_pixel_position,
4042 line_height,
4043 &line_layouts,
4044 cx,
4045 )
4046 });
4047
4048 let gutter_settings = EditorSettings::get_global(cx).gutter;
4049
4050 let mut context_menu_visible = false;
4051 let mut code_actions_indicator = None;
4052 if let Some(newest_selection_head) = newest_selection_head {
4053 if (start_row..end_row).contains(&newest_selection_head.row()) {
4054 context_menu_visible = self.layout_context_menu(
4055 line_height,
4056 &hitbox,
4057 &text_hitbox,
4058 content_origin,
4059 start_row,
4060 scroll_pixel_position,
4061 &line_layouts,
4062 newest_selection_head,
4063 gutter_dimensions.width - gutter_dimensions.left_padding,
4064 cx,
4065 );
4066 if gutter_settings.code_actions {
4067 let newest_selection_point =
4068 newest_selection_head.to_point(&snapshot.display_snapshot);
4069 let buffer = snapshot
4070 .buffer_snapshot
4071 .buffer_line_for_row(MultiBufferRow(newest_selection_point.row));
4072 if let Some((buffer, range)) = buffer {
4073 let buffer_id = buffer.remote_id();
4074 let row = range.start.row;
4075 let has_test_indicator =
4076 self.editor.read(cx).tasks.contains_key(&(buffer_id, row));
4077
4078 if !has_test_indicator {
4079 code_actions_indicator = self.layout_code_actions_indicator(
4080 line_height,
4081 newest_selection_head,
4082 scroll_pixel_position,
4083 &gutter_dimensions,
4084 &gutter_hitbox,
4085 cx,
4086 );
4087 }
4088 }
4089 }
4090 }
4091 }
4092
4093 let test_indicators = self.layout_run_indicators(
4094 line_height,
4095 scroll_pixel_position,
4096 &gutter_dimensions,
4097 &gutter_hitbox,
4098 &snapshot,
4099 cx,
4100 );
4101
4102 if !context_menu_visible && !cx.has_active_drag() {
4103 self.layout_hover_popovers(
4104 &snapshot,
4105 &hitbox,
4106 &text_hitbox,
4107 start_row..end_row,
4108 content_origin,
4109 scroll_pixel_position,
4110 &line_layouts,
4111 line_height,
4112 em_width,
4113 cx,
4114 );
4115 }
4116
4117 let mouse_context_menu = self.layout_mouse_context_menu(cx);
4118
4119 let fold_indicators = if gutter_settings.folds {
4120 cx.with_element_namespace("gutter_fold_indicators", |cx| {
4121 self.layout_gutter_fold_indicators(
4122 fold_statuses,
4123 line_height,
4124 &gutter_dimensions,
4125 gutter_settings,
4126 scroll_pixel_position,
4127 &gutter_hitbox,
4128 cx,
4129 )
4130 })
4131 } else {
4132 Vec::new()
4133 };
4134
4135 let invisible_symbol_font_size = font_size / 2.;
4136 let tab_invisible = cx
4137 .text_system()
4138 .shape_line(
4139 "→".into(),
4140 invisible_symbol_font_size,
4141 &[TextRun {
4142 len: "→".len(),
4143 font: self.style.text.font(),
4144 color: cx.theme().colors().editor_invisible,
4145 background_color: None,
4146 underline: None,
4147 strikethrough: None,
4148 }],
4149 )
4150 .unwrap();
4151 let space_invisible = cx
4152 .text_system()
4153 .shape_line(
4154 "•".into(),
4155 invisible_symbol_font_size,
4156 &[TextRun {
4157 len: "•".len(),
4158 font: self.style.text.font(),
4159 color: cx.theme().colors().editor_invisible,
4160 background_color: None,
4161 underline: None,
4162 strikethrough: None,
4163 }],
4164 )
4165 .unwrap();
4166
4167 EditorLayout {
4168 mode: snapshot.mode,
4169 position_map: Arc::new(PositionMap {
4170 size: bounds.size,
4171 scroll_pixel_position,
4172 scroll_max,
4173 line_layouts,
4174 line_height,
4175 em_width,
4176 em_advance,
4177 snapshot,
4178 }),
4179 visible_display_row_range: start_row..end_row,
4180 wrap_guides,
4181 hitbox,
4182 text_hitbox,
4183 gutter_hitbox,
4184 gutter_dimensions,
4185 content_origin,
4186 scrollbar_layout,
4187 active_rows,
4188 highlighted_rows,
4189 highlighted_ranges,
4190 redacted_ranges,
4191 line_numbers,
4192 display_hunks,
4193 blamed_display_rows,
4194 inline_blame,
4195 folds,
4196 blocks,
4197 cursors,
4198 visible_cursors,
4199 selections,
4200 mouse_context_menu,
4201 test_indicators,
4202 code_actions_indicator,
4203 fold_indicators,
4204 tab_invisible,
4205 space_invisible,
4206 }
4207 })
4208 })
4209 }
4210
4211 fn paint(
4212 &mut self,
4213 _: Option<&GlobalElementId>,
4214 bounds: Bounds<gpui::Pixels>,
4215 _: &mut Self::RequestLayoutState,
4216 layout: &mut Self::PrepaintState,
4217 cx: &mut WindowContext,
4218 ) {
4219 let focus_handle = self.editor.focus_handle(cx);
4220 let key_context = self.editor.read(cx).key_context(cx);
4221 cx.set_focus_handle(&focus_handle);
4222 cx.set_key_context(key_context);
4223 cx.handle_input(
4224 &focus_handle,
4225 ElementInputHandler::new(bounds, self.editor.clone()),
4226 );
4227 self.register_actions(cx);
4228 self.register_key_listeners(cx, layout);
4229
4230 let text_style = TextStyleRefinement {
4231 font_size: Some(self.style.text.font_size),
4232 line_height: Some(self.style.text.line_height),
4233 ..Default::default()
4234 };
4235 let mouse_position = cx.mouse_position();
4236 let hovered_hunk = layout
4237 .display_hunks
4238 .iter()
4239 .find_map(|(hunk, hunk_hitbox)| match hunk {
4240 DisplayDiffHunk::Folded { .. } => None,
4241 DisplayDiffHunk::Unfolded {
4242 diff_base_byte_range,
4243 multi_buffer_range,
4244 status,
4245 ..
4246 } => {
4247 if hunk_hitbox
4248 .as_ref()
4249 .map(|hitbox| hitbox.contains(&mouse_position))
4250 .unwrap_or(false)
4251 {
4252 Some(HunkToExpand {
4253 status: *status,
4254 multi_buffer_range: multi_buffer_range.clone(),
4255 diff_base_byte_range: diff_base_byte_range.clone(),
4256 })
4257 } else {
4258 None
4259 }
4260 }
4261 });
4262 cx.with_text_style(Some(text_style), |cx| {
4263 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
4264 self.paint_mouse_listeners(layout, hovered_hunk, cx);
4265 self.paint_background(layout, cx);
4266 if layout.gutter_hitbox.size.width > Pixels::ZERO {
4267 self.paint_gutter(layout, cx)
4268 }
4269
4270 self.paint_text(layout, cx);
4271
4272 if !layout.blocks.is_empty() {
4273 cx.with_element_namespace("blocks", |cx| {
4274 self.paint_blocks(layout, cx);
4275 });
4276 }
4277
4278 self.paint_scrollbar(layout, cx);
4279 self.paint_mouse_context_menu(layout, cx);
4280 });
4281 })
4282 }
4283}
4284
4285impl IntoElement for EditorElement {
4286 type Element = Self;
4287
4288 fn into_element(self) -> Self::Element {
4289 self
4290 }
4291}
4292
4293pub struct EditorLayout {
4294 position_map: Arc<PositionMap>,
4295 hitbox: Hitbox,
4296 text_hitbox: Hitbox,
4297 gutter_hitbox: Hitbox,
4298 gutter_dimensions: GutterDimensions,
4299 content_origin: gpui::Point<Pixels>,
4300 scrollbar_layout: Option<ScrollbarLayout>,
4301 mode: EditorMode,
4302 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
4303 visible_display_row_range: Range<DisplayRow>,
4304 active_rows: BTreeMap<DisplayRow, bool>,
4305 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
4306 line_numbers: Vec<Option<ShapedLine>>,
4307 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
4308 blamed_display_rows: Option<Vec<AnyElement>>,
4309 inline_blame: Option<AnyElement>,
4310 folds: Vec<FoldLayout>,
4311 blocks: Vec<BlockLayout>,
4312 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
4313 redacted_ranges: Vec<Range<DisplayPoint>>,
4314 cursors: Vec<(DisplayPoint, Hsla)>,
4315 visible_cursors: Vec<CursorLayout>,
4316 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
4317 code_actions_indicator: Option<AnyElement>,
4318 test_indicators: Vec<AnyElement>,
4319 fold_indicators: Vec<Option<AnyElement>>,
4320 mouse_context_menu: Option<AnyElement>,
4321 tab_invisible: ShapedLine,
4322 space_invisible: ShapedLine,
4323}
4324
4325impl EditorLayout {
4326 fn line_end_overshoot(&self) -> Pixels {
4327 0.15 * self.position_map.line_height
4328 }
4329}
4330
4331struct ColoredRange<T> {
4332 start: T,
4333 end: T,
4334 color: Hsla,
4335}
4336
4337#[derive(Clone)]
4338struct ScrollbarLayout {
4339 hitbox: Hitbox,
4340 visible_row_range: Range<f32>,
4341 visible: bool,
4342 row_height: Pixels,
4343 thumb_height: Pixels,
4344}
4345
4346impl ScrollbarLayout {
4347 const BORDER_WIDTH: Pixels = px(1.0);
4348 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
4349 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
4350 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
4351
4352 fn thumb_bounds(&self) -> Bounds<Pixels> {
4353 let thumb_top = self.y_for_row(self.visible_row_range.start);
4354 let thumb_bottom = thumb_top + self.thumb_height;
4355 Bounds::from_corners(
4356 point(self.hitbox.left(), thumb_top),
4357 point(self.hitbox.right(), thumb_bottom),
4358 )
4359 }
4360
4361 fn y_for_row(&self, row: f32) -> Pixels {
4362 self.hitbox.top() + row * self.row_height
4363 }
4364
4365 fn marker_quads_for_ranges(
4366 &self,
4367 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
4368 column: Option<usize>,
4369 ) -> Vec<PaintQuad> {
4370 struct MinMax {
4371 min: Pixels,
4372 max: Pixels,
4373 }
4374 let (x_range, height_limit) = if let Some(column) = column {
4375 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
4376 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
4377 let end = start + column_width;
4378 (
4379 Range { start, end },
4380 MinMax {
4381 min: Self::MIN_MARKER_HEIGHT,
4382 max: px(f32::MAX),
4383 },
4384 )
4385 } else {
4386 (
4387 Range {
4388 start: Self::BORDER_WIDTH,
4389 end: self.hitbox.size.width,
4390 },
4391 MinMax {
4392 min: Self::LINE_MARKER_HEIGHT,
4393 max: Self::LINE_MARKER_HEIGHT,
4394 },
4395 )
4396 };
4397
4398 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
4399 let mut pixel_ranges = row_ranges
4400 .into_iter()
4401 .map(|range| {
4402 let start_y = row_to_y(range.start);
4403 let end_y = row_to_y(range.end)
4404 + self.row_height.max(height_limit.min).min(height_limit.max);
4405 ColoredRange {
4406 start: start_y,
4407 end: end_y,
4408 color: range.color,
4409 }
4410 })
4411 .peekable();
4412
4413 let mut quads = Vec::new();
4414 while let Some(mut pixel_range) = pixel_ranges.next() {
4415 while let Some(next_pixel_range) = pixel_ranges.peek() {
4416 if pixel_range.end >= next_pixel_range.start - px(1.0)
4417 && pixel_range.color == next_pixel_range.color
4418 {
4419 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
4420 pixel_ranges.next();
4421 } else {
4422 break;
4423 }
4424 }
4425
4426 let bounds = Bounds::from_corners(
4427 point(x_range.start, pixel_range.start),
4428 point(x_range.end, pixel_range.end),
4429 );
4430 quads.push(quad(
4431 bounds,
4432 Corners::default(),
4433 pixel_range.color,
4434 Edges::default(),
4435 Hsla::transparent_black(),
4436 ));
4437 }
4438
4439 quads
4440 }
4441}
4442
4443struct FoldLayout {
4444 display_range: Range<DisplayPoint>,
4445 hover_element: AnyElement,
4446}
4447
4448struct PositionMap {
4449 size: Size<Pixels>,
4450 line_height: Pixels,
4451 scroll_pixel_position: gpui::Point<Pixels>,
4452 scroll_max: gpui::Point<f32>,
4453 em_width: Pixels,
4454 em_advance: Pixels,
4455 line_layouts: Vec<LineWithInvisibles>,
4456 snapshot: EditorSnapshot,
4457}
4458
4459#[derive(Debug, Copy, Clone)]
4460pub struct PointForPosition {
4461 pub previous_valid: DisplayPoint,
4462 pub next_valid: DisplayPoint,
4463 pub exact_unclipped: DisplayPoint,
4464 pub column_overshoot_after_line_end: u32,
4465}
4466
4467impl PointForPosition {
4468 pub fn as_valid(&self) -> Option<DisplayPoint> {
4469 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
4470 Some(self.previous_valid)
4471 } else {
4472 None
4473 }
4474 }
4475}
4476
4477impl PositionMap {
4478 fn point_for_position(
4479 &self,
4480 text_bounds: Bounds<Pixels>,
4481 position: gpui::Point<Pixels>,
4482 ) -> PointForPosition {
4483 let scroll_position = self.snapshot.scroll_position();
4484 let position = position - text_bounds.origin;
4485 let y = position.y.max(px(0.)).min(self.size.height);
4486 let x = position.x + (scroll_position.x * self.em_width);
4487 let row = ((y / self.line_height) + scroll_position.y) as u32;
4488
4489 let (column, x_overshoot_after_line_end) = if let Some(line) = self
4490 .line_layouts
4491 .get(row as usize - scroll_position.y as usize)
4492 .map(|LineWithInvisibles { line, .. }| line)
4493 {
4494 if let Some(ix) = line.index_for_x(x) {
4495 (ix as u32, px(0.))
4496 } else {
4497 (line.len as u32, px(0.).max(x - line.width))
4498 }
4499 } else {
4500 (0, x)
4501 };
4502
4503 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
4504 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
4505 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
4506
4507 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
4508 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
4509 PointForPosition {
4510 previous_valid,
4511 next_valid,
4512 exact_unclipped,
4513 column_overshoot_after_line_end,
4514 }
4515 }
4516}
4517
4518struct BlockLayout {
4519 row: DisplayRow,
4520 element: AnyElement,
4521 available_space: Size<AvailableSpace>,
4522 style: BlockStyle,
4523}
4524
4525fn layout_line(
4526 row: DisplayRow,
4527 snapshot: &EditorSnapshot,
4528 style: &EditorStyle,
4529 cx: &WindowContext,
4530) -> Result<ShapedLine> {
4531 let mut line = snapshot.line(row);
4532
4533 let len = {
4534 let line_len = line.len();
4535 if line_len > MAX_LINE_LEN {
4536 let mut len = MAX_LINE_LEN;
4537 while !line.is_char_boundary(len) {
4538 len -= 1;
4539 }
4540
4541 line.truncate(len);
4542 len
4543 } else {
4544 line_len
4545 }
4546 };
4547
4548 cx.text_system().shape_line(
4549 line.into(),
4550 style.text.font_size.to_pixels(cx.rem_size()),
4551 &[TextRun {
4552 len,
4553 font: style.text.font(),
4554 color: Hsla::default(),
4555 background_color: None,
4556 underline: None,
4557 strikethrough: None,
4558 }],
4559 )
4560}
4561
4562pub struct CursorLayout {
4563 origin: gpui::Point<Pixels>,
4564 block_width: Pixels,
4565 line_height: Pixels,
4566 color: Hsla,
4567 shape: CursorShape,
4568 block_text: Option<ShapedLine>,
4569 cursor_name: Option<AnyElement>,
4570}
4571
4572#[derive(Debug)]
4573pub struct CursorName {
4574 string: SharedString,
4575 color: Hsla,
4576 is_top_row: bool,
4577}
4578
4579impl CursorLayout {
4580 pub fn new(
4581 origin: gpui::Point<Pixels>,
4582 block_width: Pixels,
4583 line_height: Pixels,
4584 color: Hsla,
4585 shape: CursorShape,
4586 block_text: Option<ShapedLine>,
4587 ) -> CursorLayout {
4588 CursorLayout {
4589 origin,
4590 block_width,
4591 line_height,
4592 color,
4593 shape,
4594 block_text,
4595 cursor_name: None,
4596 }
4597 }
4598
4599 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4600 Bounds {
4601 origin: self.origin + origin,
4602 size: size(self.block_width, self.line_height),
4603 }
4604 }
4605
4606 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4607 match self.shape {
4608 CursorShape::Bar => Bounds {
4609 origin: self.origin + origin,
4610 size: size(px(2.0), self.line_height),
4611 },
4612 CursorShape::Block | CursorShape::Hollow => Bounds {
4613 origin: self.origin + origin,
4614 size: size(self.block_width, self.line_height),
4615 },
4616 CursorShape::Underscore => Bounds {
4617 origin: self.origin
4618 + origin
4619 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
4620 size: size(self.block_width, px(2.0)),
4621 },
4622 }
4623 }
4624
4625 pub fn layout(
4626 &mut self,
4627 origin: gpui::Point<Pixels>,
4628 cursor_name: Option<CursorName>,
4629 cx: &mut WindowContext,
4630 ) {
4631 if let Some(cursor_name) = cursor_name {
4632 let bounds = self.bounds(origin);
4633 let text_size = self.line_height / 1.5;
4634
4635 let name_origin = if cursor_name.is_top_row {
4636 point(bounds.right() - px(1.), bounds.top())
4637 } else {
4638 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
4639 };
4640 let mut name_element = div()
4641 .bg(self.color)
4642 .text_size(text_size)
4643 .px_0p5()
4644 .line_height(text_size + px(2.))
4645 .text_color(cursor_name.color)
4646 .child(cursor_name.string.clone())
4647 .into_any_element();
4648
4649 name_element.prepaint_as_root(
4650 name_origin,
4651 size(AvailableSpace::MinContent, AvailableSpace::MinContent),
4652 cx,
4653 );
4654
4655 self.cursor_name = Some(name_element);
4656 }
4657 }
4658
4659 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
4660 let bounds = self.bounds(origin);
4661
4662 //Draw background or border quad
4663 let cursor = if matches!(self.shape, CursorShape::Hollow) {
4664 outline(bounds, self.color)
4665 } else {
4666 fill(bounds, self.color)
4667 };
4668
4669 if let Some(name) = &mut self.cursor_name {
4670 name.paint(cx);
4671 }
4672
4673 cx.paint_quad(cursor);
4674
4675 if let Some(block_text) = &self.block_text {
4676 block_text
4677 .paint(self.origin + origin, self.line_height, cx)
4678 .log_err();
4679 }
4680 }
4681
4682 pub fn shape(&self) -> CursorShape {
4683 self.shape
4684 }
4685}
4686
4687#[derive(Debug)]
4688pub struct HighlightedRange {
4689 pub start_y: Pixels,
4690 pub line_height: Pixels,
4691 pub lines: Vec<HighlightedRangeLine>,
4692 pub color: Hsla,
4693 pub corner_radius: Pixels,
4694}
4695
4696#[derive(Debug)]
4697pub struct HighlightedRangeLine {
4698 pub start_x: Pixels,
4699 pub end_x: Pixels,
4700}
4701
4702impl HighlightedRange {
4703 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
4704 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
4705 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
4706 self.paint_lines(
4707 self.start_y + self.line_height,
4708 &self.lines[1..],
4709 bounds,
4710 cx,
4711 );
4712 } else {
4713 self.paint_lines(self.start_y, &self.lines, bounds, cx);
4714 }
4715 }
4716
4717 fn paint_lines(
4718 &self,
4719 start_y: Pixels,
4720 lines: &[HighlightedRangeLine],
4721 _bounds: Bounds<Pixels>,
4722 cx: &mut WindowContext,
4723 ) {
4724 if lines.is_empty() {
4725 return;
4726 }
4727
4728 let first_line = lines.first().unwrap();
4729 let last_line = lines.last().unwrap();
4730
4731 let first_top_left = point(first_line.start_x, start_y);
4732 let first_top_right = point(first_line.end_x, start_y);
4733
4734 let curve_height = point(Pixels::ZERO, self.corner_radius);
4735 let curve_width = |start_x: Pixels, end_x: Pixels| {
4736 let max = (end_x - start_x) / 2.;
4737 let width = if max < self.corner_radius {
4738 max
4739 } else {
4740 self.corner_radius
4741 };
4742
4743 point(width, Pixels::ZERO)
4744 };
4745
4746 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
4747 let mut path = gpui::Path::new(first_top_right - top_curve_width);
4748 path.curve_to(first_top_right + curve_height, first_top_right);
4749
4750 let mut iter = lines.iter().enumerate().peekable();
4751 while let Some((ix, line)) = iter.next() {
4752 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
4753
4754 if let Some((_, next_line)) = iter.peek() {
4755 let next_top_right = point(next_line.end_x, bottom_right.y);
4756
4757 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
4758 Ordering::Equal => {
4759 path.line_to(bottom_right);
4760 }
4761 Ordering::Less => {
4762 let curve_width = curve_width(next_top_right.x, bottom_right.x);
4763 path.line_to(bottom_right - curve_height);
4764 if self.corner_radius > Pixels::ZERO {
4765 path.curve_to(bottom_right - curve_width, bottom_right);
4766 }
4767 path.line_to(next_top_right + curve_width);
4768 if self.corner_radius > Pixels::ZERO {
4769 path.curve_to(next_top_right + curve_height, next_top_right);
4770 }
4771 }
4772 Ordering::Greater => {
4773 let curve_width = curve_width(bottom_right.x, next_top_right.x);
4774 path.line_to(bottom_right - curve_height);
4775 if self.corner_radius > Pixels::ZERO {
4776 path.curve_to(bottom_right + curve_width, bottom_right);
4777 }
4778 path.line_to(next_top_right - curve_width);
4779 if self.corner_radius > Pixels::ZERO {
4780 path.curve_to(next_top_right + curve_height, next_top_right);
4781 }
4782 }
4783 }
4784 } else {
4785 let curve_width = curve_width(line.start_x, line.end_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
4791 let bottom_left = point(line.start_x, bottom_right.y);
4792 path.line_to(bottom_left + curve_width);
4793 if self.corner_radius > Pixels::ZERO {
4794 path.curve_to(bottom_left - curve_height, bottom_left);
4795 }
4796 }
4797 }
4798
4799 if first_line.start_x > last_line.start_x {
4800 let curve_width = curve_width(last_line.start_x, first_line.start_x);
4801 let second_top_left = point(last_line.start_x, start_y + self.line_height);
4802 path.line_to(second_top_left + curve_height);
4803 if self.corner_radius > Pixels::ZERO {
4804 path.curve_to(second_top_left + curve_width, second_top_left);
4805 }
4806 let first_bottom_left = point(first_line.start_x, second_top_left.y);
4807 path.line_to(first_bottom_left - curve_width);
4808 if self.corner_radius > Pixels::ZERO {
4809 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
4810 }
4811 }
4812
4813 path.line_to(first_top_left + curve_height);
4814 if self.corner_radius > Pixels::ZERO {
4815 path.curve_to(first_top_left + top_curve_width, first_top_left);
4816 }
4817 path.line_to(first_top_right - top_curve_width);
4818
4819 cx.paint_path(path, self.color);
4820 }
4821}
4822
4823pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4824 (delta.pow(1.5) / 100.0).into()
4825}
4826
4827fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4828 (delta.pow(1.2) / 300.0).into()
4829}
4830
4831#[cfg(test)]
4832mod tests {
4833 use super::*;
4834 use crate::{
4835 display_map::{BlockDisposition, BlockProperties},
4836 editor_tests::{init_test, update_test_language_settings},
4837 Editor, MultiBuffer,
4838 };
4839 use gpui::{TestAppContext, VisualTestContext};
4840 use language::language_settings;
4841 use log::info;
4842 use std::num::NonZeroU32;
4843 use ui::Context;
4844 use util::test::sample_text;
4845
4846 #[gpui::test]
4847 fn test_shape_line_numbers(cx: &mut TestAppContext) {
4848 init_test(cx, |_| {});
4849 let window = cx.add_window(|cx| {
4850 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
4851 Editor::new(EditorMode::Full, buffer, None, cx)
4852 });
4853
4854 let editor = window.root(cx).unwrap();
4855 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4856 let element = EditorElement::new(&editor, style);
4857 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
4858
4859 let layouts = cx
4860 .update_window(*window, |_, cx| {
4861 element
4862 .layout_line_numbers(
4863 DisplayRow(0)..DisplayRow(6),
4864 (0..6).map(DisplayRow).map(Some),
4865 &Default::default(),
4866 Some(DisplayPoint::new(DisplayRow(0), 0)),
4867 &snapshot,
4868 cx,
4869 )
4870 .0
4871 })
4872 .unwrap();
4873 assert_eq!(layouts.len(), 6);
4874
4875 let relative_rows = window
4876 .update(cx, |editor, cx| {
4877 let snapshot = editor.snapshot(cx);
4878 element.calculate_relative_line_numbers(
4879 &snapshot,
4880 &(DisplayRow(0)..DisplayRow(6)),
4881 Some(DisplayRow(3)),
4882 )
4883 })
4884 .unwrap();
4885 assert_eq!(relative_rows[&DisplayRow(0)], 3);
4886 assert_eq!(relative_rows[&DisplayRow(1)], 2);
4887 assert_eq!(relative_rows[&DisplayRow(2)], 1);
4888 // current line has no relative number
4889 assert_eq!(relative_rows[&DisplayRow(4)], 1);
4890 assert_eq!(relative_rows[&DisplayRow(5)], 2);
4891
4892 // works if cursor is before screen
4893 let relative_rows = window
4894 .update(cx, |editor, cx| {
4895 let snapshot = editor.snapshot(cx);
4896 element.calculate_relative_line_numbers(
4897 &snapshot,
4898 &(DisplayRow(3)..DisplayRow(6)),
4899 Some(DisplayRow(1)),
4900 )
4901 })
4902 .unwrap();
4903 assert_eq!(relative_rows.len(), 3);
4904 assert_eq!(relative_rows[&DisplayRow(3)], 2);
4905 assert_eq!(relative_rows[&DisplayRow(4)], 3);
4906 assert_eq!(relative_rows[&DisplayRow(5)], 4);
4907
4908 // works if cursor is after screen
4909 let relative_rows = window
4910 .update(cx, |editor, cx| {
4911 let snapshot = editor.snapshot(cx);
4912 element.calculate_relative_line_numbers(
4913 &snapshot,
4914 &(DisplayRow(0)..DisplayRow(3)),
4915 Some(DisplayRow(6)),
4916 )
4917 })
4918 .unwrap();
4919 assert_eq!(relative_rows.len(), 3);
4920 assert_eq!(relative_rows[&DisplayRow(0)], 5);
4921 assert_eq!(relative_rows[&DisplayRow(1)], 4);
4922 assert_eq!(relative_rows[&DisplayRow(2)], 3);
4923 }
4924
4925 #[gpui::test]
4926 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
4927 init_test(cx, |_| {});
4928
4929 let window = cx.add_window(|cx| {
4930 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
4931 Editor::new(EditorMode::Full, buffer, None, cx)
4932 });
4933 let cx = &mut VisualTestContext::from_window(*window, cx);
4934 let editor = window.root(cx).unwrap();
4935 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4936
4937 window
4938 .update(cx, |editor, cx| {
4939 editor.cursor_shape = CursorShape::Block;
4940 editor.change_selections(None, cx, |s| {
4941 s.select_ranges([
4942 Point::new(0, 0)..Point::new(1, 0),
4943 Point::new(3, 2)..Point::new(3, 3),
4944 Point::new(5, 6)..Point::new(6, 0),
4945 ]);
4946 });
4947 })
4948 .unwrap();
4949
4950 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
4951 EditorElement::new(&editor, style)
4952 });
4953
4954 assert_eq!(state.selections.len(), 1);
4955 let local_selections = &state.selections[0].1;
4956 assert_eq!(local_selections.len(), 3);
4957 // moves cursor back one line
4958 assert_eq!(
4959 local_selections[0].head,
4960 DisplayPoint::new(DisplayRow(0), 6)
4961 );
4962 assert_eq!(
4963 local_selections[0].range,
4964 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
4965 );
4966
4967 // moves cursor back one column
4968 assert_eq!(
4969 local_selections[1].range,
4970 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
4971 );
4972 assert_eq!(
4973 local_selections[1].head,
4974 DisplayPoint::new(DisplayRow(3), 2)
4975 );
4976
4977 // leaves cursor on the max point
4978 assert_eq!(
4979 local_selections[2].range,
4980 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
4981 );
4982 assert_eq!(
4983 local_selections[2].head,
4984 DisplayPoint::new(DisplayRow(6), 0)
4985 );
4986
4987 // active lines does not include 1 (even though the range of the selection does)
4988 assert_eq!(
4989 state.active_rows.keys().cloned().collect::<Vec<_>>(),
4990 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
4991 );
4992
4993 // multi-buffer support
4994 // in DisplayPoint coordinates, this is what we're dealing with:
4995 // 0: [[file
4996 // 1: header]]
4997 // 2: aaaaaa
4998 // 3: bbbbbb
4999 // 4: cccccc
5000 // 5:
5001 // 6: ...
5002 // 7: ffffff
5003 // 8: gggggg
5004 // 9: hhhhhh
5005 // 10:
5006 // 11: [[file
5007 // 12: header]]
5008 // 13: bbbbbb
5009 // 14: cccccc
5010 // 15: dddddd
5011 let window = cx.add_window(|cx| {
5012 let buffer = MultiBuffer::build_multi(
5013 [
5014 (
5015 &(sample_text(8, 6, 'a') + "\n"),
5016 vec![
5017 Point::new(0, 0)..Point::new(3, 0),
5018 Point::new(4, 0)..Point::new(7, 0),
5019 ],
5020 ),
5021 (
5022 &(sample_text(8, 6, 'a') + "\n"),
5023 vec![Point::new(1, 0)..Point::new(3, 0)],
5024 ),
5025 ],
5026 cx,
5027 );
5028 Editor::new(EditorMode::Full, buffer, None, cx)
5029 });
5030 let editor = window.root(cx).unwrap();
5031 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5032 let _state = window.update(cx, |editor, cx| {
5033 editor.cursor_shape = CursorShape::Block;
5034 editor.change_selections(None, cx, |s| {
5035 s.select_display_ranges([
5036 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
5037 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
5038 ]);
5039 });
5040 });
5041
5042 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5043 EditorElement::new(&editor, style)
5044 });
5045 assert_eq!(state.selections.len(), 1);
5046 let local_selections = &state.selections[0].1;
5047 assert_eq!(local_selections.len(), 2);
5048
5049 // moves cursor on excerpt boundary back a line
5050 // and doesn't allow selection to bleed through
5051 assert_eq!(
5052 local_selections[0].range,
5053 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(6), 0)
5054 );
5055 assert_eq!(
5056 local_selections[0].head,
5057 DisplayPoint::new(DisplayRow(5), 0)
5058 );
5059 // moves cursor on buffer boundary back two lines
5060 // and doesn't allow selection to bleed through
5061 assert_eq!(
5062 local_selections[1].range,
5063 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(11), 0)
5064 );
5065 assert_eq!(
5066 local_selections[1].head,
5067 DisplayPoint::new(DisplayRow(10), 0)
5068 );
5069 }
5070
5071 #[gpui::test]
5072 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
5073 init_test(cx, |_| {});
5074
5075 let window = cx.add_window(|cx| {
5076 let buffer = MultiBuffer::build_simple("", cx);
5077 Editor::new(EditorMode::Full, buffer, None, cx)
5078 });
5079 let cx = &mut VisualTestContext::from_window(*window, cx);
5080 let editor = window.root(cx).unwrap();
5081 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5082 window
5083 .update(cx, |editor, cx| {
5084 editor.set_placeholder_text("hello", cx);
5085 editor.insert_blocks(
5086 [BlockProperties {
5087 style: BlockStyle::Fixed,
5088 disposition: BlockDisposition::Above,
5089 height: 3,
5090 position: Anchor::min(),
5091 render: Box::new(|_| div().into_any()),
5092 }],
5093 None,
5094 cx,
5095 );
5096
5097 // Blur the editor so that it displays placeholder text.
5098 cx.blur();
5099 })
5100 .unwrap();
5101
5102 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5103 EditorElement::new(&editor, style)
5104 });
5105 assert_eq!(state.position_map.line_layouts.len(), 4);
5106 assert_eq!(
5107 state
5108 .line_numbers
5109 .iter()
5110 .map(Option::is_some)
5111 .collect::<Vec<_>>(),
5112 &[false, false, false, true]
5113 );
5114 }
5115
5116 #[gpui::test]
5117 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
5118 const TAB_SIZE: u32 = 4;
5119
5120 let input_text = "\t \t|\t| a b";
5121 let expected_invisibles = vec![
5122 Invisible::Tab {
5123 line_start_offset: 0,
5124 },
5125 Invisible::Whitespace {
5126 line_offset: TAB_SIZE as usize,
5127 },
5128 Invisible::Tab {
5129 line_start_offset: TAB_SIZE as usize + 1,
5130 },
5131 Invisible::Tab {
5132 line_start_offset: TAB_SIZE as usize * 2 + 1,
5133 },
5134 Invisible::Whitespace {
5135 line_offset: TAB_SIZE as usize * 3 + 1,
5136 },
5137 Invisible::Whitespace {
5138 line_offset: TAB_SIZE as usize * 3 + 3,
5139 },
5140 ];
5141 assert_eq!(
5142 expected_invisibles.len(),
5143 input_text
5144 .chars()
5145 .filter(|initial_char| initial_char.is_whitespace())
5146 .count(),
5147 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5148 );
5149
5150 init_test(cx, |s| {
5151 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5152 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
5153 });
5154
5155 let actual_invisibles =
5156 collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, px(500.0));
5157
5158 assert_eq!(expected_invisibles, actual_invisibles);
5159 }
5160
5161 #[gpui::test]
5162 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
5163 init_test(cx, |s| {
5164 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5165 s.defaults.tab_size = NonZeroU32::new(4);
5166 });
5167
5168 for editor_mode_without_invisibles in [
5169 EditorMode::SingleLine,
5170 EditorMode::AutoHeight { max_lines: 100 },
5171 ] {
5172 let invisibles = collect_invisibles_from_new_editor(
5173 cx,
5174 editor_mode_without_invisibles,
5175 "\t\t\t| | a b",
5176 px(500.0),
5177 );
5178 assert!(invisibles.is_empty(),
5179 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
5180 }
5181 }
5182
5183 #[gpui::test]
5184 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
5185 let tab_size = 4;
5186 let input_text = "a\tbcd ".repeat(9);
5187 let repeated_invisibles = [
5188 Invisible::Tab {
5189 line_start_offset: 1,
5190 },
5191 Invisible::Whitespace {
5192 line_offset: tab_size as usize + 3,
5193 },
5194 Invisible::Whitespace {
5195 line_offset: tab_size as usize + 4,
5196 },
5197 Invisible::Whitespace {
5198 line_offset: tab_size as usize + 5,
5199 },
5200 ];
5201 let expected_invisibles = std::iter::once(repeated_invisibles)
5202 .cycle()
5203 .take(9)
5204 .flatten()
5205 .collect::<Vec<_>>();
5206 assert_eq!(
5207 expected_invisibles.len(),
5208 input_text
5209 .chars()
5210 .filter(|initial_char| initial_char.is_whitespace())
5211 .count(),
5212 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5213 );
5214 info!("Expected invisibles: {expected_invisibles:?}");
5215
5216 init_test(cx, |_| {});
5217
5218 // Put the same string with repeating whitespace pattern into editors of various size,
5219 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
5220 let resize_step = 10.0;
5221 let mut editor_width = 200.0;
5222 while editor_width <= 1000.0 {
5223 update_test_language_settings(cx, |s| {
5224 s.defaults.tab_size = NonZeroU32::new(tab_size);
5225 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5226 s.defaults.preferred_line_length = Some(editor_width as u32);
5227 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
5228 });
5229
5230 let actual_invisibles = collect_invisibles_from_new_editor(
5231 cx,
5232 EditorMode::Full,
5233 &input_text,
5234 px(editor_width),
5235 );
5236
5237 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
5238 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
5239 let mut i = 0;
5240 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
5241 i = actual_index;
5242 match expected_invisibles.get(i) {
5243 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
5244 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
5245 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
5246 _ => {
5247 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
5248 }
5249 },
5250 None => panic!("Unexpected extra invisible {actual_invisible:?} at index {i}"),
5251 }
5252 }
5253 let missing_expected_invisibles = &expected_invisibles[i + 1..];
5254 assert!(
5255 missing_expected_invisibles.is_empty(),
5256 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
5257 );
5258
5259 editor_width += resize_step;
5260 }
5261 }
5262
5263 fn collect_invisibles_from_new_editor(
5264 cx: &mut TestAppContext,
5265 editor_mode: EditorMode,
5266 input_text: &str,
5267 editor_width: Pixels,
5268 ) -> Vec<Invisible> {
5269 info!(
5270 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
5271 editor_width.0
5272 );
5273 let window = cx.add_window(|cx| {
5274 let buffer = MultiBuffer::build_simple(&input_text, cx);
5275 Editor::new(editor_mode, buffer, None, cx)
5276 });
5277 let cx = &mut VisualTestContext::from_window(*window, cx);
5278 let editor = window.root(cx).unwrap();
5279 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5280 window
5281 .update(cx, |editor, cx| {
5282 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
5283 editor.set_wrap_width(Some(editor_width), cx);
5284 })
5285 .unwrap();
5286 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5287 EditorElement::new(&editor, style)
5288 });
5289 state
5290 .position_map
5291 .line_layouts
5292 .iter()
5293 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
5294 .cloned()
5295 .collect()
5296 }
5297}
5298
5299pub fn register_action<T: Action>(
5300 view: &View<Editor>,
5301 cx: &mut WindowContext,
5302 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
5303) {
5304 let view = view.clone();
5305 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
5306 let action = action.downcast_ref().unwrap();
5307 if phase == DispatchPhase::Bubble {
5308 view.update(cx, |editor, cx| {
5309 listener(editor, action, cx);
5310 })
5311 }
5312 })
5313}
5314
5315fn compute_auto_height_layout(
5316 editor: &mut Editor,
5317 max_lines: usize,
5318 max_line_number_width: Pixels,
5319 known_dimensions: Size<Option<Pixels>>,
5320 available_width: AvailableSpace,
5321 cx: &mut ViewContext<Editor>,
5322) -> Option<Size<Pixels>> {
5323 let width = known_dimensions.width.or_else(|| {
5324 if let AvailableSpace::Definite(available_width) = available_width {
5325 Some(available_width)
5326 } else {
5327 None
5328 }
5329 })?;
5330 if let Some(height) = known_dimensions.height {
5331 return Some(size(width, height));
5332 }
5333
5334 let style = editor.style.as_ref().unwrap();
5335 let font_id = cx.text_system().resolve_font(&style.text.font());
5336 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5337 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5338 let em_width = cx
5339 .text_system()
5340 .typographic_bounds(font_id, font_size, 'm')
5341 .unwrap()
5342 .size
5343 .width;
5344
5345 let mut snapshot = editor.snapshot(cx);
5346 let gutter_dimensions =
5347 snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
5348
5349 editor.gutter_dimensions = gutter_dimensions;
5350 let text_width = width - gutter_dimensions.width;
5351 let overscroll = size(em_width, px(0.));
5352
5353 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
5354 if editor.set_wrap_width(Some(editor_width), cx) {
5355 snapshot = editor.snapshot(cx);
5356 }
5357
5358 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
5359 let height = scroll_height
5360 .max(line_height)
5361 .min(line_height * max_lines as f32);
5362
5363 Some(size(width, height))
5364}