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(crate) const SCROLLBAR_WIDTH: Pixels = px(13.);
140
141 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
142 Self {
143 editor: editor.clone(),
144 style,
145 }
146 }
147
148 fn register_actions(&self, cx: &mut WindowContext) {
149 let view = &self.editor;
150 view.update(cx, |editor, cx| {
151 for action in editor.editor_actions.iter() {
152 (action)(cx)
153 }
154 });
155
156 crate::rust_analyzer_ext::apply_related_actions(view, cx);
157 register_action(view, cx, Editor::move_left);
158 register_action(view, cx, Editor::move_right);
159 register_action(view, cx, Editor::move_down);
160 register_action(view, cx, Editor::move_down_by_lines);
161 register_action(view, cx, Editor::select_down_by_lines);
162 register_action(view, cx, Editor::move_up);
163 register_action(view, cx, Editor::move_up_by_lines);
164 register_action(view, cx, Editor::select_up_by_lines);
165 register_action(view, cx, Editor::cancel);
166 register_action(view, cx, Editor::newline);
167 register_action(view, cx, Editor::newline_above);
168 register_action(view, cx, Editor::newline_below);
169 register_action(view, cx, Editor::backspace);
170 register_action(view, cx, Editor::delete);
171 register_action(view, cx, Editor::tab);
172 register_action(view, cx, Editor::tab_prev);
173 register_action(view, cx, Editor::indent);
174 register_action(view, cx, Editor::outdent);
175 register_action(view, cx, Editor::delete_line);
176 register_action(view, cx, Editor::join_lines);
177 register_action(view, cx, Editor::sort_lines_case_sensitive);
178 register_action(view, cx, Editor::sort_lines_case_insensitive);
179 register_action(view, cx, Editor::reverse_lines);
180 register_action(view, cx, Editor::shuffle_lines);
181 register_action(view, cx, Editor::convert_to_upper_case);
182 register_action(view, cx, Editor::convert_to_lower_case);
183 register_action(view, cx, Editor::convert_to_title_case);
184 register_action(view, cx, Editor::convert_to_snake_case);
185 register_action(view, cx, Editor::convert_to_kebab_case);
186 register_action(view, cx, Editor::convert_to_upper_camel_case);
187 register_action(view, cx, Editor::convert_to_lower_camel_case);
188 register_action(view, cx, Editor::convert_to_opposite_case);
189 register_action(view, cx, Editor::delete_to_previous_word_start);
190 register_action(view, cx, Editor::delete_to_previous_subword_start);
191 register_action(view, cx, Editor::delete_to_next_word_end);
192 register_action(view, cx, Editor::delete_to_next_subword_end);
193 register_action(view, cx, Editor::delete_to_beginning_of_line);
194 register_action(view, cx, Editor::delete_to_end_of_line);
195 register_action(view, cx, Editor::cut_to_end_of_line);
196 register_action(view, cx, Editor::duplicate_line_up);
197 register_action(view, cx, Editor::duplicate_line_down);
198 register_action(view, cx, Editor::move_line_up);
199 register_action(view, cx, Editor::move_line_down);
200 register_action(view, cx, Editor::transpose);
201 register_action(view, cx, Editor::cut);
202 register_action(view, cx, Editor::copy);
203 register_action(view, cx, Editor::paste);
204 register_action(view, cx, Editor::undo);
205 register_action(view, cx, Editor::redo);
206 register_action(view, cx, Editor::move_page_up);
207 register_action(view, cx, Editor::move_page_down);
208 register_action(view, cx, Editor::next_screen);
209 register_action(view, cx, Editor::scroll_cursor_top);
210 register_action(view, cx, Editor::scroll_cursor_center);
211 register_action(view, cx, Editor::scroll_cursor_bottom);
212 register_action(view, cx, |editor, _: &LineDown, cx| {
213 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
214 });
215 register_action(view, cx, |editor, _: &LineUp, cx| {
216 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
217 });
218 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
219 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
220 });
221 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
222 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
223 });
224 register_action(view, cx, |editor, _: &PageDown, cx| {
225 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
226 });
227 register_action(view, cx, |editor, _: &PageUp, cx| {
228 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
229 });
230 register_action(view, cx, Editor::move_to_previous_word_start);
231 register_action(view, cx, Editor::move_to_previous_subword_start);
232 register_action(view, cx, Editor::move_to_next_word_end);
233 register_action(view, cx, Editor::move_to_next_subword_end);
234 register_action(view, cx, Editor::move_to_beginning_of_line);
235 register_action(view, cx, Editor::move_to_end_of_line);
236 register_action(view, cx, Editor::move_to_start_of_paragraph);
237 register_action(view, cx, Editor::move_to_end_of_paragraph);
238 register_action(view, cx, Editor::move_to_beginning);
239 register_action(view, cx, Editor::move_to_end);
240 register_action(view, cx, Editor::select_up);
241 register_action(view, cx, Editor::select_down);
242 register_action(view, cx, Editor::select_left);
243 register_action(view, cx, Editor::select_right);
244 register_action(view, cx, Editor::select_to_previous_word_start);
245 register_action(view, cx, Editor::select_to_previous_subword_start);
246 register_action(view, cx, Editor::select_to_next_word_end);
247 register_action(view, cx, Editor::select_to_next_subword_end);
248 register_action(view, cx, Editor::select_to_beginning_of_line);
249 register_action(view, cx, Editor::select_to_end_of_line);
250 register_action(view, cx, Editor::select_to_start_of_paragraph);
251 register_action(view, cx, Editor::select_to_end_of_paragraph);
252 register_action(view, cx, Editor::select_to_beginning);
253 register_action(view, cx, Editor::select_to_end);
254 register_action(view, cx, Editor::select_all);
255 register_action(view, cx, |editor, action, cx| {
256 editor.select_all_matches(action, cx).log_err();
257 });
258 register_action(view, cx, Editor::select_line);
259 register_action(view, cx, Editor::split_selection_into_lines);
260 register_action(view, cx, Editor::add_selection_above);
261 register_action(view, cx, Editor::add_selection_below);
262 register_action(view, cx, |editor, action, cx| {
263 editor.select_next(action, cx).log_err();
264 });
265 register_action(view, cx, |editor, action, cx| {
266 editor.select_previous(action, cx).log_err();
267 });
268 register_action(view, cx, Editor::toggle_comments);
269 register_action(view, cx, Editor::select_larger_syntax_node);
270 register_action(view, cx, Editor::select_smaller_syntax_node);
271 register_action(view, cx, Editor::move_to_enclosing_bracket);
272 register_action(view, cx, Editor::undo_selection);
273 register_action(view, cx, Editor::redo_selection);
274 if !view.read(cx).is_singleton(cx) {
275 register_action(view, cx, Editor::expand_excerpts);
276 }
277 register_action(view, cx, Editor::go_to_diagnostic);
278 register_action(view, cx, Editor::go_to_prev_diagnostic);
279 register_action(view, cx, Editor::go_to_hunk);
280 register_action(view, cx, Editor::go_to_prev_hunk);
281 register_action(view, cx, |editor, a, cx| {
282 editor.go_to_definition(a, cx).detach_and_log_err(cx);
283 });
284 register_action(view, cx, |editor, a, cx| {
285 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
286 });
287 register_action(view, cx, |editor, a, cx| {
288 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
289 });
290 register_action(view, cx, |editor, a, cx| {
291 editor
292 .go_to_implementation_split(a, cx)
293 .detach_and_log_err(cx);
294 });
295 register_action(view, cx, |editor, a, cx| {
296 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
297 });
298 register_action(view, cx, |editor, a, cx| {
299 editor
300 .go_to_type_definition_split(a, cx)
301 .detach_and_log_err(cx);
302 });
303 register_action(view, cx, Editor::open_url);
304 register_action(view, cx, Editor::fold);
305 register_action(view, cx, Editor::fold_at);
306 register_action(view, cx, Editor::unfold_lines);
307 register_action(view, cx, Editor::unfold_at);
308 register_action(view, cx, Editor::fold_selected_ranges);
309 register_action(view, cx, Editor::show_completions);
310 register_action(view, cx, Editor::toggle_code_actions);
311 register_action(view, cx, Editor::open_excerpts);
312 register_action(view, cx, Editor::open_excerpts_in_split);
313 register_action(view, cx, Editor::toggle_soft_wrap);
314 register_action(view, cx, Editor::toggle_line_numbers);
315 register_action(view, cx, Editor::toggle_inlay_hints);
316 register_action(view, cx, hover_popover::hover);
317 register_action(view, cx, Editor::reveal_in_finder);
318 register_action(view, cx, Editor::copy_path);
319 register_action(view, cx, Editor::copy_relative_path);
320 register_action(view, cx, Editor::copy_highlight_json);
321 register_action(view, cx, Editor::copy_permalink_to_line);
322 register_action(view, cx, Editor::open_permalink_to_line);
323 register_action(view, cx, Editor::toggle_git_blame);
324 register_action(view, cx, Editor::toggle_git_blame_inline);
325 register_action(view, cx, Editor::toggle_hunk_diff);
326 register_action(view, cx, Editor::expand_all_hunk_diffs);
327 register_action(view, cx, |editor, action, cx| {
328 if let Some(task) = editor.format(action, cx) {
329 task.detach_and_log_err(cx);
330 } else {
331 cx.propagate();
332 }
333 });
334 register_action(view, cx, Editor::restart_language_server);
335 register_action(view, cx, Editor::show_character_palette);
336 register_action(view, cx, |editor, action, cx| {
337 if let Some(task) = editor.confirm_completion(action, cx) {
338 task.detach_and_log_err(cx);
339 } else {
340 cx.propagate();
341 }
342 });
343 register_action(view, cx, |editor, action, cx| {
344 if let Some(task) = editor.confirm_code_action(action, cx) {
345 task.detach_and_log_err(cx);
346 } else {
347 cx.propagate();
348 }
349 });
350 register_action(view, cx, |editor, action, cx| {
351 if let Some(task) = editor.rename(action, cx) {
352 task.detach_and_log_err(cx);
353 } else {
354 cx.propagate();
355 }
356 });
357 register_action(view, cx, |editor, action, cx| {
358 if let Some(task) = editor.confirm_rename(action, cx) {
359 task.detach_and_log_err(cx);
360 } else {
361 cx.propagate();
362 }
363 });
364 register_action(view, cx, |editor, action, cx| {
365 if let Some(task) = editor.find_all_references(action, cx) {
366 task.detach_and_log_err(cx);
367 } else {
368 cx.propagate();
369 }
370 });
371 register_action(view, cx, Editor::next_inline_completion);
372 register_action(view, cx, Editor::previous_inline_completion);
373 register_action(view, cx, Editor::show_inline_completion);
374 register_action(view, cx, Editor::context_menu_first);
375 register_action(view, cx, Editor::context_menu_prev);
376 register_action(view, cx, Editor::context_menu_next);
377 register_action(view, cx, Editor::context_menu_last);
378 register_action(view, cx, Editor::display_cursor_names);
379 register_action(view, cx, Editor::unique_lines_case_insensitive);
380 register_action(view, cx, Editor::unique_lines_case_sensitive);
381 register_action(view, cx, Editor::accept_partial_inline_completion);
382 register_action(view, cx, Editor::revert_selected_hunks);
383 register_action(view, cx, Editor::open_active_item_in_terminal)
384 }
385
386 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
387 let position_map = layout.position_map.clone();
388 cx.on_key_event({
389 let editor = self.editor.clone();
390 let text_hitbox = layout.text_hitbox.clone();
391 move |event: &ModifiersChangedEvent, phase, cx| {
392 if phase != DispatchPhase::Bubble {
393 return;
394 }
395
396 editor.update(cx, |editor, cx| {
397 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
398 })
399 }
400 });
401 }
402
403 fn modifiers_changed(
404 editor: &mut Editor,
405 event: &ModifiersChangedEvent,
406 position_map: &PositionMap,
407 text_hitbox: &Hitbox,
408 cx: &mut ViewContext<Editor>,
409 ) {
410 let mouse_position = cx.mouse_position();
411 if !text_hitbox.is_hovered(cx) {
412 return;
413 }
414
415 editor.update_hovered_link(
416 position_map.point_for_position(text_hitbox.bounds, mouse_position),
417 &position_map.snapshot,
418 event.modifiers,
419 cx,
420 )
421 }
422
423 fn mouse_left_down(
424 editor: &mut Editor,
425 event: &MouseDownEvent,
426 hovered_hunk: Option<&HunkToExpand>,
427 position_map: &PositionMap,
428 text_hitbox: &Hitbox,
429 gutter_hitbox: &Hitbox,
430 cx: &mut ViewContext<Editor>,
431 ) {
432 if cx.default_prevented() {
433 return;
434 }
435
436 let mut click_count = event.click_count;
437 let mut modifiers = event.modifiers;
438
439 if let Some(hovered_hunk) = hovered_hunk {
440 editor.expand_diff_hunk(None, hovered_hunk, cx);
441 cx.notify();
442 return;
443 } else if gutter_hitbox.is_hovered(cx) {
444 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
445 } else if !text_hitbox.is_hovered(cx) {
446 return;
447 }
448
449 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
450 match EditorSettings::get_global(cx).double_click_in_multibuffer {
451 DoubleClickInMultibuffer::Select => {
452 // do nothing special on double click, all selection logic is below
453 }
454 DoubleClickInMultibuffer::Open => {
455 if modifiers.alt {
456 // if double click is made with alt, pretend it's a regular double click without opening and alt,
457 // and run the selection logic.
458 modifiers.alt = false;
459 } else {
460 // if double click is made without alt, open the corresponding excerp
461 editor.open_excerpts(&OpenExcerpts, cx);
462 return;
463 }
464 }
465 }
466 }
467
468 let point_for_position =
469 position_map.point_for_position(text_hitbox.bounds, event.position);
470 let position = point_for_position.previous_valid;
471 if modifiers.shift && modifiers.alt {
472 editor.select(
473 SelectPhase::BeginColumnar {
474 position,
475 goal_column: point_for_position.exact_unclipped.column(),
476 },
477 cx,
478 );
479 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
480 {
481 editor.select(
482 SelectPhase::Extend {
483 position,
484 click_count,
485 },
486 cx,
487 );
488 } else {
489 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
490 let multi_cursor_modifier = match multi_cursor_setting {
491 MultiCursorModifier::Alt => modifiers.alt,
492 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
493 };
494 editor.select(
495 SelectPhase::Begin {
496 position,
497 add: multi_cursor_modifier,
498 click_count,
499 },
500 cx,
501 );
502 }
503
504 cx.stop_propagation();
505 }
506
507 fn mouse_right_down(
508 editor: &mut Editor,
509 event: &MouseDownEvent,
510 position_map: &PositionMap,
511 text_hitbox: &Hitbox,
512 cx: &mut ViewContext<Editor>,
513 ) {
514 if !text_hitbox.is_hovered(cx) {
515 return;
516 }
517 let point_for_position =
518 position_map.point_for_position(text_hitbox.bounds, event.position);
519 mouse_context_menu::deploy_context_menu(
520 editor,
521 event.position,
522 point_for_position.previous_valid,
523 cx,
524 );
525 cx.stop_propagation();
526 }
527
528 fn mouse_middle_down(
529 editor: &mut Editor,
530 event: &MouseDownEvent,
531 position_map: &PositionMap,
532 text_hitbox: &Hitbox,
533 cx: &mut ViewContext<Editor>,
534 ) {
535 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
536 return;
537 }
538
539 if let Some(item) = cx.read_from_primary() {
540 let point_for_position =
541 position_map.point_for_position(text_hitbox.bounds, event.position);
542 let position = point_for_position.previous_valid;
543
544 editor.select(
545 SelectPhase::Begin {
546 position,
547 add: false,
548 click_count: 1,
549 },
550 cx,
551 );
552 editor.insert(item.text(), cx);
553 }
554 }
555
556 fn mouse_up(
557 editor: &mut Editor,
558 event: &MouseUpEvent,
559 position_map: &PositionMap,
560 text_hitbox: &Hitbox,
561 cx: &mut ViewContext<Editor>,
562 ) {
563 let end_selection = editor.has_pending_selection();
564 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
565
566 if end_selection {
567 editor.select(SelectPhase::End, cx);
568 }
569
570 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
571 let multi_cursor_modifier = match multi_cursor_setting {
572 MultiCursorModifier::Alt => event.modifiers.secondary(),
573 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
574 };
575
576 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
577 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
578 editor.handle_click_hovered_link(point, event.modifiers, cx);
579
580 cx.stop_propagation();
581 } else if end_selection {
582 cx.stop_propagation();
583 }
584 }
585
586 fn mouse_dragged(
587 editor: &mut Editor,
588 event: &MouseMoveEvent,
589 position_map: &PositionMap,
590 text_bounds: Bounds<Pixels>,
591 cx: &mut ViewContext<Editor>,
592 ) {
593 if !editor.has_pending_selection() {
594 return;
595 }
596
597 let point_for_position = position_map.point_for_position(text_bounds, event.position);
598 let mut scroll_delta = gpui::Point::<f32>::default();
599 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
600 let top = text_bounds.origin.y + vertical_margin;
601 let bottom = text_bounds.lower_left().y - vertical_margin;
602 if event.position.y < top {
603 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
604 }
605 if event.position.y > bottom {
606 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
607 }
608
609 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
610 let left = text_bounds.origin.x + horizontal_margin;
611 let right = text_bounds.upper_right().x - horizontal_margin;
612 if event.position.x < left {
613 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
614 }
615 if event.position.x > right {
616 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
617 }
618
619 editor.select(
620 SelectPhase::Update {
621 position: point_for_position.previous_valid,
622 goal_column: point_for_position.exact_unclipped.column(),
623 scroll_delta,
624 },
625 cx,
626 );
627 }
628
629 fn mouse_moved(
630 editor: &mut Editor,
631 event: &MouseMoveEvent,
632 position_map: &PositionMap,
633 text_hitbox: &Hitbox,
634 gutter_hitbox: &Hitbox,
635 cx: &mut ViewContext<Editor>,
636 ) {
637 let modifiers = event.modifiers;
638 let gutter_hovered = gutter_hitbox.is_hovered(cx);
639 editor.set_gutter_hovered(gutter_hovered, cx);
640
641 // Don't trigger hover popover if mouse is hovering over context menu
642 if text_hitbox.is_hovered(cx) {
643 let point_for_position =
644 position_map.point_for_position(text_hitbox.bounds, event.position);
645
646 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
647
648 if let Some(point) = point_for_position.as_valid() {
649 let anchor = position_map
650 .snapshot
651 .buffer_snapshot
652 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
653 hover_at(editor, Some(anchor), cx);
654 Self::update_visible_cursor(editor, point, position_map, cx);
655 } else {
656 hover_at(editor, None, cx);
657 }
658 } else {
659 editor.hide_hovered_link(cx);
660 hover_at(editor, None, cx);
661 if gutter_hovered {
662 cx.stop_propagation();
663 }
664 }
665 }
666
667 fn update_visible_cursor(
668 editor: &mut Editor,
669 point: DisplayPoint,
670 position_map: &PositionMap,
671 cx: &mut ViewContext<Editor>,
672 ) {
673 let snapshot = &position_map.snapshot;
674 let Some(hub) = editor.collaboration_hub() else {
675 return;
676 };
677 let range = DisplayPoint::new(point.row(), point.column().saturating_sub(1))
678 ..DisplayPoint::new(
679 point.row(),
680 (point.column() + 1).min(snapshot.line_len(point.row())),
681 );
682
683 let range = snapshot
684 .buffer_snapshot
685 .anchor_at(range.start.to_point(&snapshot.display_snapshot), Bias::Left)
686 ..snapshot
687 .buffer_snapshot
688 .anchor_at(range.end.to_point(&snapshot.display_snapshot), Bias::Right);
689
690 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
691 return;
692 };
693 let key = crate::HoveredCursor {
694 replica_id: selection.replica_id,
695 selection_id: selection.selection.id,
696 };
697 editor.hovered_cursors.insert(
698 key.clone(),
699 cx.spawn(|editor, mut cx| async move {
700 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
701 editor
702 .update(&mut cx, |editor, cx| {
703 editor.hovered_cursors.remove(&key);
704 cx.notify();
705 })
706 .ok();
707 }),
708 );
709 cx.notify()
710 }
711
712 fn layout_selections(
713 &self,
714 start_anchor: Anchor,
715 end_anchor: Anchor,
716 snapshot: &EditorSnapshot,
717 start_row: DisplayRow,
718 end_row: DisplayRow,
719 cx: &mut WindowContext,
720 ) -> (
721 Vec<(PlayerColor, Vec<SelectionLayout>)>,
722 BTreeMap<DisplayRow, bool>,
723 Option<DisplayPoint>,
724 ) {
725 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
726 let mut active_rows = BTreeMap::new();
727 let mut newest_selection_head = None;
728 let editor = self.editor.read(cx);
729
730 if editor.show_local_selections {
731 let mut local_selections: Vec<Selection<Point>> = editor
732 .selections
733 .disjoint_in_range(start_anchor..end_anchor, cx);
734 local_selections.extend(editor.selections.pending(cx));
735 let mut layouts = Vec::new();
736 let newest = editor.selections.newest(cx);
737 for selection in local_selections.drain(..) {
738 let is_empty = selection.start == selection.end;
739 let is_newest = selection == newest;
740
741 let layout = SelectionLayout::new(
742 selection,
743 editor.selections.line_mode,
744 editor.cursor_shape,
745 &snapshot.display_snapshot,
746 is_newest,
747 editor.leader_peer_id.is_none(),
748 None,
749 );
750 if is_newest {
751 newest_selection_head = Some(layout.head);
752 }
753
754 for row in cmp::max(layout.active_rows.start.0, start_row.0)
755 ..=cmp::min(layout.active_rows.end.0, end_row.0)
756 {
757 let contains_non_empty_selection =
758 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
759 *contains_non_empty_selection |= !is_empty;
760 }
761 layouts.push(layout);
762 }
763
764 let player = if editor.read_only(cx) {
765 cx.theme().players().read_only()
766 } else {
767 self.style.local_player
768 };
769
770 selections.push((player, layouts));
771 }
772
773 if let Some(collaboration_hub) = &editor.collaboration_hub {
774 // When following someone, render the local selections in their color.
775 if let Some(leader_id) = editor.leader_peer_id {
776 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
777 if let Some(participant_index) = collaboration_hub
778 .user_participant_indices(cx)
779 .get(&collaborator.user_id)
780 {
781 if let Some((local_selection_style, _)) = selections.first_mut() {
782 *local_selection_style = cx
783 .theme()
784 .players()
785 .color_for_participant(participant_index.0);
786 }
787 }
788 }
789 }
790
791 let mut remote_selections = HashMap::default();
792 for selection in snapshot.remote_selections_in_range(
793 &(start_anchor..end_anchor),
794 collaboration_hub.as_ref(),
795 cx,
796 ) {
797 let selection_style = Self::get_participant_color(selection.participant_index, cx);
798
799 // Don't re-render the leader's selections, since the local selections
800 // match theirs.
801 if Some(selection.peer_id) == editor.leader_peer_id {
802 continue;
803 }
804 let key = HoveredCursor {
805 replica_id: selection.replica_id,
806 selection_id: selection.selection.id,
807 };
808
809 let is_shown =
810 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
811
812 remote_selections
813 .entry(selection.replica_id)
814 .or_insert((selection_style, Vec::new()))
815 .1
816 .push(SelectionLayout::new(
817 selection.selection,
818 selection.line_mode,
819 selection.cursor_shape,
820 &snapshot.display_snapshot,
821 false,
822 false,
823 if is_shown { selection.user_name } else { None },
824 ));
825 }
826
827 selections.extend(remote_selections.into_values());
828 }
829 (selections, active_rows, newest_selection_head)
830 }
831
832 #[allow(clippy::too_many_arguments)]
833 fn layout_folds(
834 &self,
835 snapshot: &EditorSnapshot,
836 content_origin: gpui::Point<Pixels>,
837 visible_anchor_range: Range<Anchor>,
838 visible_display_row_range: Range<DisplayRow>,
839 scroll_pixel_position: gpui::Point<Pixels>,
840 line_height: Pixels,
841 line_layouts: &[LineWithInvisibles],
842 cx: &mut WindowContext,
843 ) -> Vec<FoldLayout> {
844 snapshot
845 .folds_in_range(visible_anchor_range.clone())
846 .filter_map(|fold| {
847 let fold_range = fold.range.clone();
848 let display_range = fold.range.start.to_display_point(&snapshot)
849 ..fold.range.end.to_display_point(&snapshot);
850 debug_assert_eq!(display_range.start.row(), display_range.end.row());
851 let row = display_range.start.row();
852 debug_assert!(row < visible_display_row_range.end);
853 let line_layout = line_layouts
854 .get(row.minus(visible_display_row_range.start) as usize)
855 .map(|l| &l.line)?;
856
857 let start_x = content_origin.x
858 + line_layout.x_for_index(display_range.start.column() as usize)
859 - scroll_pixel_position.x;
860 let start_y =
861 content_origin.y + row.as_f32() * line_height - scroll_pixel_position.y;
862 let end_x = content_origin.x
863 + line_layout.x_for_index(display_range.end.column() as usize)
864 - scroll_pixel_position.x;
865
866 let fold_bounds = Bounds {
867 origin: point(start_x, start_y),
868 size: size(end_x - start_x, line_height),
869 };
870
871 let mut hover_element = div()
872 .id(fold.id)
873 .size_full()
874 .cursor_pointer()
875 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
876 .on_click(
877 cx.listener_for(&self.editor, move |editor: &mut Editor, _, cx| {
878 editor.unfold_ranges(
879 [fold_range.start..fold_range.end],
880 true,
881 false,
882 cx,
883 );
884 cx.stop_propagation();
885 }),
886 )
887 .into_any();
888 hover_element.prepaint_as_root(fold_bounds.origin, fold_bounds.size.into(), cx);
889 Some(FoldLayout {
890 display_range,
891 hover_element,
892 })
893 })
894 .collect()
895 }
896
897 fn collect_cursors(
898 &self,
899 snapshot: &EditorSnapshot,
900 cx: &mut WindowContext,
901 ) -> Vec<(DisplayPoint, Hsla)> {
902 let editor = self.editor.read(cx);
903 let mut cursors = Vec::new();
904 let mut skip_local = false;
905 let mut add_cursor = |anchor: Anchor, color| {
906 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
907 };
908 // Remote cursors
909 if let Some(collaboration_hub) = &editor.collaboration_hub {
910 for remote_selection in snapshot.remote_selections_in_range(
911 &(Anchor::min()..Anchor::max()),
912 collaboration_hub.deref(),
913 cx,
914 ) {
915 let color = Self::get_participant_color(remote_selection.participant_index, cx);
916 add_cursor(remote_selection.selection.head(), color.cursor);
917 if Some(remote_selection.peer_id) == editor.leader_peer_id {
918 skip_local = true;
919 }
920 }
921 }
922 // Local cursors
923 if !skip_local {
924 let color = cx.theme().players().local().cursor;
925 editor.selections.disjoint.iter().for_each(|selection| {
926 add_cursor(selection.head(), color);
927 });
928 if let Some(ref selection) = editor.selections.pending_anchor() {
929 add_cursor(selection.head(), color);
930 }
931 }
932 cursors
933 }
934
935 #[allow(clippy::too_many_arguments)]
936 fn layout_visible_cursors(
937 &self,
938 snapshot: &EditorSnapshot,
939 selections: &[(PlayerColor, Vec<SelectionLayout>)],
940 visible_display_row_range: Range<DisplayRow>,
941 line_layouts: &[LineWithInvisibles],
942 text_hitbox: &Hitbox,
943 content_origin: gpui::Point<Pixels>,
944 scroll_position: gpui::Point<f32>,
945 scroll_pixel_position: gpui::Point<Pixels>,
946 line_height: Pixels,
947 em_width: Pixels,
948 autoscroll_containing_element: bool,
949 cx: &mut WindowContext,
950 ) -> Vec<CursorLayout> {
951 let mut autoscroll_bounds = None;
952 let cursor_layouts = self.editor.update(cx, |editor, cx| {
953 let mut cursors = Vec::new();
954 for (player_color, selections) in selections {
955 for selection in selections {
956 let cursor_position = selection.head;
957
958 let in_range = visible_display_row_range.contains(&cursor_position.row());
959 if (selection.is_local && !editor.show_local_cursors(cx)) || !in_range {
960 continue;
961 }
962
963 let cursor_row_layout = &line_layouts
964 [cursor_position.row().minus(visible_display_row_range.start) as usize]
965 .line;
966 let cursor_column = cursor_position.column() as usize;
967
968 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
969 let mut block_width =
970 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
971 if block_width == Pixels::ZERO {
972 block_width = em_width;
973 }
974 let block_text = if let CursorShape::Block = selection.cursor_shape {
975 snapshot.display_chars_at(cursor_position).next().and_then(
976 |(character, _)| {
977 let text = if character == '\n' {
978 SharedString::from(" ")
979 } else {
980 SharedString::from(character.to_string())
981 };
982 let len = text.len();
983
984 let font = cursor_row_layout
985 .font_id_for_index(cursor_column)
986 .and_then(|cursor_font_id| {
987 cx.text_system().get_font_for_id(cursor_font_id)
988 })
989 .unwrap_or(self.style.text.font());
990
991 cx.text_system()
992 .shape_line(
993 text,
994 cursor_row_layout.font_size,
995 &[TextRun {
996 len,
997 font,
998 color: self.style.background,
999 background_color: None,
1000 strikethrough: None,
1001 underline: None,
1002 }],
1003 )
1004 .log_err()
1005 },
1006 )
1007 } else {
1008 None
1009 };
1010
1011 let x = cursor_character_x - scroll_pixel_position.x;
1012 let y = (cursor_position.row().as_f32()
1013 - scroll_pixel_position.y / line_height)
1014 * line_height;
1015 if selection.is_newest {
1016 editor.pixel_position_of_newest_cursor = Some(point(
1017 text_hitbox.origin.x + x + block_width / 2.,
1018 text_hitbox.origin.y + y + line_height / 2.,
1019 ));
1020
1021 if autoscroll_containing_element {
1022 let top = text_hitbox.origin.y
1023 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1024 * line_height;
1025 let left = text_hitbox.origin.x
1026 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1027 .max(0.)
1028 * em_width;
1029
1030 let bottom = text_hitbox.origin.y
1031 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1032 * line_height;
1033 let right = text_hitbox.origin.x
1034 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1035 * em_width;
1036
1037 autoscroll_bounds =
1038 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1039 }
1040 }
1041
1042 let mut cursor = CursorLayout {
1043 color: player_color.cursor,
1044 block_width,
1045 origin: point(x, y),
1046 line_height,
1047 shape: selection.cursor_shape,
1048 block_text,
1049 cursor_name: None,
1050 };
1051 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1052 string: name,
1053 color: self.style.background,
1054 is_top_row: cursor_position.row().0 == 0,
1055 });
1056 cursor.layout(content_origin, cursor_name, cx);
1057 cursors.push(cursor);
1058 }
1059 }
1060 cursors
1061 });
1062
1063 if let Some(bounds) = autoscroll_bounds {
1064 cx.request_autoscroll(bounds);
1065 }
1066
1067 cursor_layouts
1068 }
1069
1070 fn layout_scrollbar(
1071 &self,
1072 snapshot: &EditorSnapshot,
1073 bounds: Bounds<Pixels>,
1074 scroll_position: gpui::Point<f32>,
1075 rows_per_page: f32,
1076 non_visible_cursors: bool,
1077 cx: &mut WindowContext,
1078 ) -> Option<ScrollbarLayout> {
1079 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1080 let show_scrollbars = match scrollbar_settings.show {
1081 ShowScrollbar::Auto => {
1082 let editor = self.editor.read(cx);
1083 let is_singleton = editor.is_singleton(cx);
1084 // Git
1085 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1086 ||
1087 // Buffer Search Results
1088 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1089 ||
1090 // Selected Symbol Occurrences
1091 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1092 ||
1093 // Diagnostics
1094 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1095 ||
1096 // Cursors out of sight
1097 non_visible_cursors
1098 ||
1099 // Scrollmanager
1100 editor.scroll_manager.scrollbars_visible()
1101 }
1102 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1103 ShowScrollbar::Always => true,
1104 ShowScrollbar::Never => false,
1105 };
1106 if snapshot.mode != EditorMode::Full {
1107 return None;
1108 }
1109
1110 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1111
1112 // If a drag took place after we started dragging the scrollbar,
1113 // cancel the scrollbar drag.
1114 if cx.has_active_drag() {
1115 self.editor.update(cx, |editor, cx| {
1116 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1117 });
1118 }
1119
1120 let track_bounds = Bounds::from_corners(
1121 point(self.scrollbar_left(&bounds), bounds.origin.y),
1122 point(bounds.lower_right().x, bounds.lower_left().y),
1123 );
1124
1125 let height = bounds.size.height;
1126 let total_rows = snapshot.max_point().row().as_f32() + rows_per_page;
1127 let px_per_row = height / total_rows;
1128 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1129 let row_height = (height - thumb_height) / snapshot.max_point().row().as_f32();
1130
1131 Some(ScrollbarLayout {
1132 hitbox: cx.insert_hitbox(track_bounds, false),
1133 visible_row_range,
1134 row_height,
1135 visible: show_scrollbars,
1136 thumb_height,
1137 })
1138 }
1139
1140 #[allow(clippy::too_many_arguments)]
1141 fn layout_gutter_fold_indicators(
1142 &self,
1143 fold_statuses: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
1144 line_height: Pixels,
1145 gutter_dimensions: &GutterDimensions,
1146 gutter_settings: crate::editor_settings::Gutter,
1147 scroll_pixel_position: gpui::Point<Pixels>,
1148 gutter_hitbox: &Hitbox,
1149 cx: &mut WindowContext,
1150 ) -> Vec<Option<AnyElement>> {
1151 let mut indicators = self.editor.update(cx, |editor, cx| {
1152 editor.render_fold_indicators(
1153 fold_statuses,
1154 &self.style,
1155 editor.gutter_hovered,
1156 line_height,
1157 gutter_dimensions.margin,
1158 cx,
1159 )
1160 });
1161
1162 for (ix, fold_indicator) in indicators.iter_mut().enumerate() {
1163 if let Some(fold_indicator) = fold_indicator {
1164 debug_assert!(gutter_settings.folds);
1165 let available_space = size(
1166 AvailableSpace::MinContent,
1167 AvailableSpace::Definite(line_height * 0.55),
1168 );
1169 let fold_indicator_size = fold_indicator.layout_as_root(available_space, cx);
1170
1171 let position = point(
1172 gutter_dimensions.width - gutter_dimensions.right_padding,
1173 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1174 );
1175 let centering_offset = point(
1176 (gutter_dimensions.right_padding + gutter_dimensions.margin
1177 - fold_indicator_size.width)
1178 / 2.,
1179 (line_height - fold_indicator_size.height) / 2.,
1180 );
1181 let origin = gutter_hitbox.origin + position + centering_offset;
1182 fold_indicator.prepaint_as_root(origin, available_space, cx);
1183 }
1184 }
1185
1186 indicators
1187 }
1188
1189 // Folds contained in a hunk are ignored apart from shrinking visual size
1190 // If a fold contains any hunks then that fold line is marked as modified
1191 fn layout_git_gutters(
1192 &self,
1193 line_height: Pixels,
1194 gutter_hitbox: &Hitbox,
1195 display_rows: Range<DisplayRow>,
1196 snapshot: &EditorSnapshot,
1197 cx: &mut WindowContext,
1198 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1199 let buffer_snapshot = &snapshot.buffer_snapshot;
1200
1201 let buffer_start_row = MultiBufferRow(
1202 DisplayPoint::new(display_rows.start, 0)
1203 .to_point(snapshot)
1204 .row,
1205 );
1206 let buffer_end_row = MultiBufferRow(
1207 DisplayPoint::new(display_rows.end, 0)
1208 .to_point(snapshot)
1209 .row,
1210 );
1211
1212 let expanded_hunk_display_rows = self.editor.update(cx, |editor, _| {
1213 editor
1214 .expanded_hunks
1215 .hunks(false)
1216 .map(|expanded_hunk| {
1217 let start_row = expanded_hunk
1218 .hunk_range
1219 .start
1220 .to_display_point(snapshot)
1221 .row();
1222 let end_row = expanded_hunk
1223 .hunk_range
1224 .end
1225 .to_display_point(snapshot)
1226 .row();
1227 (start_row, end_row)
1228 })
1229 .collect::<HashMap<_, _>>()
1230 });
1231
1232 buffer_snapshot
1233 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1234 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
1235 .dedup()
1236 .map(|hunk| {
1237 let hitbox = if let DisplayDiffHunk::Unfolded {
1238 display_row_range, ..
1239 } = &hunk
1240 {
1241 let was_expanded = expanded_hunk_display_rows
1242 .get(&display_row_range.start)
1243 .map(|expanded_end_row| expanded_end_row == &display_row_range.end)
1244 .unwrap_or(false);
1245 if was_expanded {
1246 None
1247 } else {
1248 let hunk_bounds = Self::diff_hunk_bounds(
1249 &snapshot,
1250 line_height,
1251 gutter_hitbox.bounds,
1252 &hunk,
1253 );
1254 Some(cx.insert_hitbox(hunk_bounds, true))
1255 }
1256 } else {
1257 None
1258 };
1259 (hunk, hitbox)
1260 })
1261 .collect()
1262 }
1263
1264 #[allow(clippy::too_many_arguments)]
1265 fn layout_inline_blame(
1266 &self,
1267 display_row: DisplayRow,
1268 display_snapshot: &DisplaySnapshot,
1269 line_layout: &LineWithInvisibles,
1270 em_width: Pixels,
1271 content_origin: gpui::Point<Pixels>,
1272 scroll_pixel_position: gpui::Point<Pixels>,
1273 line_height: Pixels,
1274 cx: &mut WindowContext,
1275 ) -> Option<AnyElement> {
1276 if !self
1277 .editor
1278 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1279 {
1280 return None;
1281 }
1282
1283 let workspace = self
1284 .editor
1285 .read(cx)
1286 .workspace
1287 .as_ref()
1288 .map(|(w, _)| w.clone());
1289
1290 let display_point = DisplayPoint::new(display_row, 0);
1291 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1292
1293 let blame = self.editor.read(cx).blame.clone()?;
1294 let blame_entry = blame
1295 .update(cx, |blame, cx| {
1296 blame.blame_for_rows([Some(buffer_row)], cx).next()
1297 })
1298 .flatten()?;
1299
1300 let mut element =
1301 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1302
1303 let start_y = content_origin.y
1304 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1305
1306 let start_x = {
1307 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1308
1309 let padded_line_width =
1310 line_layout.line.width + (em_width * INLINE_BLAME_PADDING_EM_WIDTHS);
1311
1312 let min_column = ProjectSettings::get_global(cx)
1313 .git
1314 .inline_blame
1315 .and_then(|settings| settings.min_column)
1316 .map(|col| self.column_pixels(col as usize, cx))
1317 .unwrap_or(px(0.));
1318
1319 (content_origin.x - scroll_pixel_position.x) + max(padded_line_width, min_column)
1320 };
1321
1322 let absolute_offset = point(start_x, start_y);
1323 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1324
1325 element.prepaint_as_root(absolute_offset, available_space, cx);
1326
1327 Some(element)
1328 }
1329
1330 #[allow(clippy::too_many_arguments)]
1331 fn layout_blame_entries(
1332 &self,
1333 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1334 em_width: Pixels,
1335 scroll_position: gpui::Point<f32>,
1336 line_height: Pixels,
1337 gutter_hitbox: &Hitbox,
1338 max_width: Option<Pixels>,
1339 cx: &mut WindowContext,
1340 ) -> Option<Vec<AnyElement>> {
1341 if !self
1342 .editor
1343 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1344 {
1345 return None;
1346 }
1347
1348 let blame = self.editor.read(cx).blame.clone()?;
1349 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1350 blame.blame_for_rows(buffer_rows, cx).collect()
1351 });
1352
1353 let width = if let Some(max_width) = max_width {
1354 AvailableSpace::Definite(max_width)
1355 } else {
1356 AvailableSpace::MaxContent
1357 };
1358 let scroll_top = scroll_position.y * line_height;
1359 let start_x = em_width * 1;
1360
1361 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1362
1363 let shaped_lines = blamed_rows
1364 .into_iter()
1365 .enumerate()
1366 .flat_map(|(ix, blame_entry)| {
1367 if let Some(blame_entry) = blame_entry {
1368 let mut element = render_blame_entry(
1369 ix,
1370 &blame,
1371 blame_entry,
1372 &self.style,
1373 &mut last_used_color,
1374 self.editor.clone(),
1375 cx,
1376 );
1377
1378 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1379 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1380
1381 element.prepaint_as_root(
1382 absolute_offset,
1383 size(width, AvailableSpace::MinContent),
1384 cx,
1385 );
1386
1387 Some(element)
1388 } else {
1389 None
1390 }
1391 })
1392 .collect();
1393
1394 Some(shaped_lines)
1395 }
1396
1397 fn layout_run_indicators(
1398 &self,
1399 line_height: Pixels,
1400 scroll_pixel_position: gpui::Point<Pixels>,
1401 gutter_dimensions: &GutterDimensions,
1402 gutter_hitbox: &Hitbox,
1403 snapshot: &EditorSnapshot,
1404 cx: &mut WindowContext,
1405 ) -> Vec<AnyElement> {
1406 self.editor.update(cx, |editor, cx| {
1407 let active_task_indicator_row =
1408 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1409 deployed_from_indicator,
1410 actions,
1411 ..
1412 })) = editor.context_menu.read().as_ref()
1413 {
1414 actions
1415 .tasks
1416 .as_ref()
1417 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1418 .or_else(|| *deployed_from_indicator)
1419 } else {
1420 None
1421 };
1422 editor
1423 .tasks
1424 .iter()
1425 .filter_map(|(_, (multibuffer_offset, _))| {
1426 let multibuffer_point = multibuffer_offset.to_point(&snapshot.buffer_snapshot);
1427 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1428 if snapshot.is_line_folded(multibuffer_row) {
1429 return None;
1430 }
1431 let display_row = multibuffer_point.to_display_point(snapshot).row();
1432 let button = editor.render_run_indicator(
1433 &self.style,
1434 Some(display_row) == active_task_indicator_row,
1435 display_row,
1436 cx,
1437 );
1438
1439 let button = prepaint_gutter_button(
1440 button,
1441 display_row,
1442 line_height,
1443 gutter_dimensions,
1444 scroll_pixel_position,
1445 gutter_hitbox,
1446 cx,
1447 );
1448 Some(button)
1449 })
1450 .collect_vec()
1451 })
1452 }
1453
1454 fn layout_code_actions_indicator(
1455 &self,
1456 line_height: Pixels,
1457 newest_selection_head: DisplayPoint,
1458 scroll_pixel_position: gpui::Point<Pixels>,
1459 gutter_dimensions: &GutterDimensions,
1460 gutter_hitbox: &Hitbox,
1461 cx: &mut WindowContext,
1462 ) -> Option<AnyElement> {
1463 let mut active = false;
1464 let mut button = None;
1465 let row = newest_selection_head.row();
1466 self.editor.update(cx, |editor, cx| {
1467 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1468 deployed_from_indicator,
1469 ..
1470 })) = editor.context_menu.read().as_ref()
1471 {
1472 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1473 };
1474 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1475 });
1476
1477 let button = prepaint_gutter_button(
1478 button?,
1479 row,
1480 line_height,
1481 gutter_dimensions,
1482 scroll_pixel_position,
1483 gutter_hitbox,
1484 cx,
1485 );
1486
1487 Some(button)
1488 }
1489
1490 fn get_participant_color(
1491 participant_index: Option<ParticipantIndex>,
1492 cx: &WindowContext,
1493 ) -> PlayerColor {
1494 if let Some(index) = participant_index {
1495 cx.theme().players().color_for_participant(index.0)
1496 } else {
1497 cx.theme().players().absent()
1498 }
1499 }
1500
1501 fn calculate_relative_line_numbers(
1502 &self,
1503 snapshot: &EditorSnapshot,
1504 rows: &Range<DisplayRow>,
1505 relative_to: Option<DisplayRow>,
1506 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1507 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1508 let Some(relative_to) = relative_to else {
1509 return relative_rows;
1510 };
1511
1512 let start = rows.start.min(relative_to);
1513 let end = rows.end.max(relative_to);
1514
1515 let buffer_rows = snapshot
1516 .display_rows(start)
1517 .take(1 + end.minus(start) as usize)
1518 .collect::<Vec<_>>();
1519
1520 let head_idx = relative_to.minus(start);
1521 let mut delta = 1;
1522 let mut i = head_idx + 1;
1523 while i < buffer_rows.len() as u32 {
1524 if buffer_rows[i as usize].is_some() {
1525 if rows.contains(&DisplayRow(i + start.0)) {
1526 relative_rows.insert(DisplayRow(i + start.0), delta);
1527 }
1528 delta += 1;
1529 }
1530 i += 1;
1531 }
1532 delta = 1;
1533 i = head_idx.min(buffer_rows.len() as u32 - 1);
1534 while i > 0 && buffer_rows[i as usize].is_none() {
1535 i -= 1;
1536 }
1537
1538 while i > 0 {
1539 i -= 1;
1540 if buffer_rows[i as usize].is_some() {
1541 if rows.contains(&DisplayRow(i + start.0)) {
1542 relative_rows.insert(DisplayRow(i + start.0), delta);
1543 }
1544 delta += 1;
1545 }
1546 }
1547
1548 relative_rows
1549 }
1550
1551 fn layout_line_numbers(
1552 &self,
1553 rows: Range<DisplayRow>,
1554 buffer_rows: impl Iterator<Item = Option<DisplayRow>>,
1555 active_rows: &BTreeMap<DisplayRow, bool>,
1556 newest_selection_head: Option<DisplayPoint>,
1557 snapshot: &EditorSnapshot,
1558 cx: &WindowContext,
1559 ) -> (
1560 Vec<Option<ShapedLine>>,
1561 Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
1562 ) {
1563 let editor = self.editor.read(cx);
1564 let is_singleton = editor.is_singleton(cx);
1565 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1566 let newest = editor.selections.newest::<Point>(cx);
1567 SelectionLayout::new(
1568 newest,
1569 editor.selections.line_mode,
1570 editor.cursor_shape,
1571 &snapshot.display_snapshot,
1572 true,
1573 true,
1574 None,
1575 )
1576 .head
1577 });
1578 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1579 let include_line_numbers =
1580 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full;
1581 let include_fold_statuses =
1582 EditorSettings::get_global(cx).gutter.folds && snapshot.mode == EditorMode::Full;
1583 let mut shaped_line_numbers = Vec::with_capacity(rows.len());
1584 let mut fold_statuses = Vec::with_capacity(rows.len());
1585 let mut line_number = String::new();
1586 let is_relative = EditorSettings::get_global(cx).relative_line_numbers;
1587 let relative_to = if is_relative {
1588 Some(newest_selection_head.row())
1589 } else {
1590 None
1591 };
1592
1593 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1594
1595 for (ix, row) in buffer_rows.into_iter().enumerate() {
1596 let display_row = DisplayRow(rows.start.0 + ix as u32);
1597 let (active, color) = if active_rows.contains_key(&display_row) {
1598 (true, cx.theme().colors().editor_active_line_number)
1599 } else {
1600 (false, cx.theme().colors().editor_line_number)
1601 };
1602 if let Some(display_row) = row {
1603 if include_line_numbers {
1604 line_number.clear();
1605 let default_number = display_row.0 + 1;
1606 let number = relative_rows
1607 .get(&DisplayRow(ix as u32 + rows.start.0))
1608 .unwrap_or(&default_number);
1609 write!(&mut line_number, "{number}").unwrap();
1610 let run = TextRun {
1611 len: line_number.len(),
1612 font: self.style.text.font(),
1613 color,
1614 background_color: None,
1615 underline: None,
1616 strikethrough: None,
1617 };
1618 let shaped_line = cx
1619 .text_system()
1620 .shape_line(line_number.clone().into(), font_size, &[run])
1621 .unwrap();
1622 shaped_line_numbers.push(Some(shaped_line));
1623 }
1624 if include_fold_statuses {
1625 fold_statuses.push(
1626 is_singleton
1627 .then(|| {
1628 let multibuffer_point =
1629 DisplayPoint::new(display_row, 0).to_point(snapshot);
1630 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1631 snapshot
1632 .fold_for_line(multibuffer_row)
1633 .map(|fold_status| (fold_status, multibuffer_row, active))
1634 })
1635 .flatten(),
1636 )
1637 }
1638 } else {
1639 fold_statuses.push(None);
1640 shaped_line_numbers.push(None);
1641 }
1642 }
1643
1644 (shaped_line_numbers, fold_statuses)
1645 }
1646
1647 fn layout_lines(
1648 &self,
1649 rows: Range<DisplayRow>,
1650 line_number_layouts: &[Option<ShapedLine>],
1651 snapshot: &EditorSnapshot,
1652 cx: &WindowContext,
1653 ) -> Vec<LineWithInvisibles> {
1654 if rows.start >= rows.end {
1655 return Vec::new();
1656 }
1657
1658 // Show the placeholder when the editor is empty
1659 if snapshot.is_empty() {
1660 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1661 let placeholder_color = cx.theme().colors().text_placeholder;
1662 let placeholder_text = snapshot.placeholder_text();
1663
1664 let placeholder_lines = placeholder_text
1665 .as_ref()
1666 .map_or("", AsRef::as_ref)
1667 .split('\n')
1668 .skip(rows.start.0 as usize)
1669 .chain(iter::repeat(""))
1670 .take(rows.len());
1671 placeholder_lines
1672 .filter_map(move |line| {
1673 let run = TextRun {
1674 len: line.len(),
1675 font: self.style.text.font(),
1676 color: placeholder_color,
1677 background_color: None,
1678 underline: Default::default(),
1679 strikethrough: None,
1680 };
1681 cx.text_system()
1682 .shape_line(line.to_string().into(), font_size, &[run])
1683 .log_err()
1684 })
1685 .map(|line| LineWithInvisibles {
1686 line,
1687 invisibles: Vec::new(),
1688 })
1689 .collect()
1690 } else {
1691 let chunks = snapshot.highlighted_chunks(rows.clone(), true, &self.style);
1692 LineWithInvisibles::from_chunks(
1693 chunks,
1694 &self.style.text,
1695 MAX_LINE_LEN,
1696 rows.len(),
1697 line_number_layouts,
1698 snapshot.mode,
1699 cx,
1700 )
1701 }
1702 }
1703
1704 #[allow(clippy::too_many_arguments)]
1705 fn build_blocks(
1706 &self,
1707 rows: Range<DisplayRow>,
1708 snapshot: &EditorSnapshot,
1709 hitbox: &Hitbox,
1710 text_hitbox: &Hitbox,
1711 scroll_width: &mut Pixels,
1712 gutter_dimensions: &GutterDimensions,
1713 em_width: Pixels,
1714 text_x: Pixels,
1715 line_height: Pixels,
1716 line_layouts: &[LineWithInvisibles],
1717 cx: &mut WindowContext,
1718 ) -> Vec<BlockLayout> {
1719 let mut block_id = 0;
1720 let (fixed_blocks, non_fixed_blocks) = snapshot
1721 .blocks_in_range(rows.clone())
1722 .partition::<Vec<_>, _>(|(_, block)| match block {
1723 TransformBlock::ExcerptHeader { .. } => false,
1724 TransformBlock::Custom(block) => block.style() == BlockStyle::Fixed,
1725 });
1726
1727 let render_block = |block: &TransformBlock,
1728 available_space: Size<AvailableSpace>,
1729 block_id: usize,
1730 block_row_start: DisplayRow,
1731 cx: &mut WindowContext| {
1732 let mut element = match block {
1733 TransformBlock::Custom(block) => {
1734 let align_to = block
1735 .position()
1736 .to_point(&snapshot.buffer_snapshot)
1737 .to_display_point(snapshot);
1738 let anchor_x = text_x
1739 + if rows.contains(&align_to.row()) {
1740 line_layouts[align_to.row().minus(rows.start) as usize]
1741 .line
1742 .x_for_index(align_to.column() as usize)
1743 } else {
1744 layout_line(align_to.row(), snapshot, &self.style, cx)
1745 .unwrap()
1746 .x_for_index(align_to.column() as usize)
1747 };
1748
1749 block.render(&mut BlockContext {
1750 context: cx,
1751 anchor_x,
1752 gutter_dimensions,
1753 line_height,
1754 em_width,
1755 block_id,
1756 max_width: text_hitbox.size.width.max(*scroll_width),
1757 editor_style: &self.style,
1758 })
1759 }
1760
1761 TransformBlock::ExcerptHeader {
1762 buffer,
1763 range,
1764 starts_new_buffer,
1765 height,
1766 id,
1767 ..
1768 } => {
1769 let include_root = self
1770 .editor
1771 .read(cx)
1772 .project
1773 .as_ref()
1774 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
1775 .unwrap_or_default();
1776
1777 #[derive(Clone)]
1778 struct JumpData {
1779 position: Point,
1780 anchor: text::Anchor,
1781 path: ProjectPath,
1782 line_offset_from_top: u32,
1783 }
1784
1785 let jump_data = project::File::from_dyn(buffer.file()).map(|file| {
1786 let jump_path = ProjectPath {
1787 worktree_id: file.worktree_id(cx),
1788 path: file.path.clone(),
1789 };
1790 let jump_anchor = range
1791 .primary
1792 .as_ref()
1793 .map_or(range.context.start, |primary| primary.start);
1794
1795 let excerpt_start = range.context.start;
1796 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
1797 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
1798 0
1799 } else {
1800 let excerpt_start_row =
1801 language::ToPoint::to_point(&jump_anchor, buffer).row;
1802 jump_position.row - excerpt_start_row
1803 };
1804
1805 let line_offset_from_top =
1806 block_row_start.0 + *height as u32 + offset_from_excerpt_start
1807 - snapshot
1808 .scroll_anchor
1809 .scroll_position(&snapshot.display_snapshot)
1810 .y as u32;
1811
1812 JumpData {
1813 position: jump_position,
1814 anchor: jump_anchor,
1815 path: jump_path,
1816 line_offset_from_top,
1817 }
1818 });
1819
1820 let element = if *starts_new_buffer {
1821 let path = buffer.resolve_file_path(cx, include_root);
1822 let mut filename = None;
1823 let mut parent_path = None;
1824 // Can't use .and_then() because `.file_name()` and `.parent()` return references :(
1825 if let Some(path) = path {
1826 filename = path.file_name().map(|f| f.to_string_lossy().to_string());
1827 parent_path = path
1828 .parent()
1829 .map(|p| SharedString::from(p.to_string_lossy().to_string() + "/"));
1830 }
1831
1832 v_flex()
1833 .id(("path header container", block_id))
1834 .size_full()
1835 .justify_center()
1836 .p(gpui::px(6.))
1837 .child(
1838 h_flex()
1839 .id("path header block")
1840 .size_full()
1841 .pl(gpui::px(12.))
1842 .pr(gpui::px(8.))
1843 .rounded_md()
1844 .shadow_md()
1845 .border_1()
1846 .border_color(cx.theme().colors().border)
1847 .bg(cx.theme().colors().editor_subheader_background)
1848 .justify_between()
1849 .hover(|style| style.bg(cx.theme().colors().element_hover))
1850 .child(
1851 h_flex().gap_3().child(
1852 h_flex()
1853 .gap_2()
1854 .child(
1855 filename
1856 .map(SharedString::from)
1857 .unwrap_or_else(|| "untitled".into()),
1858 )
1859 .when_some(parent_path, |then, path| {
1860 then.child(
1861 div().child(path).text_color(
1862 cx.theme().colors().text_muted,
1863 ),
1864 )
1865 }),
1866 ),
1867 )
1868 .when_some(jump_data.clone(), |this, jump_data| {
1869 this.cursor_pointer()
1870 .tooltip(|cx| {
1871 Tooltip::for_action(
1872 "Jump to File",
1873 &OpenExcerpts,
1874 cx,
1875 )
1876 })
1877 .on_mouse_down(MouseButton::Left, |_, cx| {
1878 cx.stop_propagation()
1879 })
1880 .on_click(cx.listener_for(&self.editor, {
1881 move |editor, _, cx| {
1882 editor.jump(
1883 jump_data.path.clone(),
1884 jump_data.position,
1885 jump_data.anchor,
1886 jump_data.line_offset_from_top,
1887 cx,
1888 );
1889 }
1890 }))
1891 }),
1892 )
1893 } else {
1894 v_flex()
1895 .id(("collapsed context", block_id))
1896 .size_full()
1897 .child(
1898 div()
1899 .flex()
1900 .v_flex()
1901 .justify_start()
1902 .id("jump to collapsed context")
1903 .w(relative(1.0))
1904 .h_full()
1905 .child(
1906 div()
1907 .h_px()
1908 .w_full()
1909 .bg(cx.theme().colors().border_variant)
1910 .group_hover("excerpt-jump-action", |style| {
1911 style.bg(cx.theme().colors().border)
1912 }),
1913 ),
1914 )
1915 .child(
1916 h_flex()
1917 .justify_end()
1918 .flex_none()
1919 .w(
1920 gutter_dimensions.width - (gutter_dimensions.left_padding), // + gutter_dimensions.right_padding)
1921 )
1922 .h_full()
1923 .child(
1924 ButtonLike::new("expand-icon")
1925 .style(ButtonStyle::Transparent)
1926 .child(
1927 svg()
1928 .path(IconName::ExpandVertical.path())
1929 .size(IconSize::XSmall.rems())
1930 .text_color(
1931 cx.theme().colors().editor_line_number,
1932 )
1933 .group("")
1934 .hover(|style| {
1935 style.text_color(
1936 cx.theme()
1937 .colors()
1938 .editor_active_line_number,
1939 )
1940 }),
1941 )
1942 .on_click(cx.listener_for(&self.editor, {
1943 let id = *id;
1944 move |editor, _, cx| {
1945 editor.expand_excerpt(id, cx);
1946 }
1947 }))
1948 .tooltip({
1949 move |cx| {
1950 Tooltip::for_action(
1951 "Expand Excerpt",
1952 &ExpandExcerpts { lines: 0 },
1953 cx,
1954 )
1955 }
1956 }),
1957 ),
1958 )
1959 .group("excerpt-jump-action")
1960 .cursor_pointer()
1961 .when_some(jump_data.clone(), |this, jump_data| {
1962 this.on_click(cx.listener_for(&self.editor, {
1963 let path = jump_data.path.clone();
1964 move |editor, _, cx| {
1965 cx.stop_propagation();
1966
1967 editor.jump(
1968 path.clone(),
1969 jump_data.position,
1970 jump_data.anchor,
1971 jump_data.line_offset_from_top,
1972 cx,
1973 );
1974 }
1975 }))
1976 .tooltip(move |cx| {
1977 Tooltip::for_action(
1978 format!(
1979 "Jump to {}:L{}",
1980 jump_data.path.path.display(),
1981 jump_data.position.row + 1
1982 ),
1983 &OpenExcerpts,
1984 cx,
1985 )
1986 })
1987 })
1988 };
1989 element.into_any()
1990 }
1991 };
1992
1993 let size = element.layout_as_root(available_space, cx);
1994 (element, size)
1995 };
1996
1997 let mut fixed_block_max_width = Pixels::ZERO;
1998 let mut blocks = Vec::new();
1999 for (row, block) in fixed_blocks {
2000 let available_space = size(
2001 AvailableSpace::MinContent,
2002 AvailableSpace::Definite(block.height() as f32 * line_height),
2003 );
2004 let (element, element_size) = render_block(block, available_space, block_id, row, cx);
2005 block_id += 1;
2006 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2007 blocks.push(BlockLayout {
2008 row,
2009 element,
2010 available_space,
2011 style: BlockStyle::Fixed,
2012 });
2013 }
2014 for (row, block) in non_fixed_blocks {
2015 let style = match block {
2016 TransformBlock::Custom(block) => block.style(),
2017 TransformBlock::ExcerptHeader { .. } => BlockStyle::Sticky,
2018 };
2019 let width = match style {
2020 BlockStyle::Sticky => hitbox.size.width,
2021 BlockStyle::Flex => hitbox
2022 .size
2023 .width
2024 .max(fixed_block_max_width)
2025 .max(gutter_dimensions.width + *scroll_width),
2026 BlockStyle::Fixed => unreachable!(),
2027 };
2028 let available_space = size(
2029 AvailableSpace::Definite(width),
2030 AvailableSpace::Definite(block.height() as f32 * line_height),
2031 );
2032 let (element, _) = render_block(block, available_space, block_id, row, cx);
2033 block_id += 1;
2034 blocks.push(BlockLayout {
2035 row,
2036 element,
2037 available_space,
2038 style,
2039 });
2040 }
2041
2042 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2043 blocks
2044 }
2045
2046 fn layout_blocks(
2047 &self,
2048 blocks: &mut Vec<BlockLayout>,
2049 hitbox: &Hitbox,
2050 line_height: Pixels,
2051 scroll_pixel_position: gpui::Point<Pixels>,
2052 cx: &mut WindowContext,
2053 ) {
2054 for block in blocks {
2055 let mut origin = hitbox.origin
2056 + point(
2057 Pixels::ZERO,
2058 block.row.as_f32() * line_height - scroll_pixel_position.y,
2059 );
2060 if !matches!(block.style, BlockStyle::Sticky) {
2061 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2062 }
2063 block
2064 .element
2065 .prepaint_as_root(origin, block.available_space, cx);
2066 }
2067 }
2068
2069 #[allow(clippy::too_many_arguments)]
2070 fn layout_context_menu(
2071 &self,
2072 line_height: Pixels,
2073 hitbox: &Hitbox,
2074 text_hitbox: &Hitbox,
2075 content_origin: gpui::Point<Pixels>,
2076 start_row: DisplayRow,
2077 scroll_pixel_position: gpui::Point<Pixels>,
2078 line_layouts: &[LineWithInvisibles],
2079 newest_selection_head: DisplayPoint,
2080 gutter_overshoot: Pixels,
2081 cx: &mut WindowContext,
2082 ) -> bool {
2083 let max_height = cmp::min(
2084 12. * line_height,
2085 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2086 );
2087 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2088 if editor.context_menu_visible() {
2089 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2090 } else {
2091 None
2092 }
2093 }) else {
2094 return false;
2095 };
2096
2097 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2098 let context_menu_size = context_menu.layout_as_root(available_space, cx);
2099
2100 let (x, y) = match position {
2101 crate::ContextMenuOrigin::EditorPoint(point) => {
2102 let cursor_row_layout = &line_layouts[point.row().minus(start_row) as usize].line;
2103 let x = cursor_row_layout.x_for_index(point.column() as usize)
2104 - scroll_pixel_position.x;
2105 let y = point.row().next_row().as_f32() * line_height - scroll_pixel_position.y;
2106 (x, y)
2107 }
2108 crate::ContextMenuOrigin::GutterIndicator(row) => {
2109 // 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
2110 // text field.
2111 let x = -gutter_overshoot;
2112 let y = row.next_row().as_f32() * line_height - scroll_pixel_position.y;
2113 (x, y)
2114 }
2115 };
2116
2117 let mut list_origin = content_origin + point(x, y);
2118 let list_width = context_menu_size.width;
2119 let list_height = context_menu_size.height;
2120
2121 // Snap the right edge of the list to the right edge of the window if
2122 // its horizontal bounds overflow.
2123 if list_origin.x + list_width > cx.viewport_size().width {
2124 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2125 }
2126
2127 if list_origin.y + list_height > text_hitbox.lower_right().y {
2128 list_origin.y -= line_height + list_height;
2129 }
2130
2131 cx.defer_draw(context_menu, list_origin, 1);
2132 true
2133 }
2134
2135 fn layout_mouse_context_menu(&self, cx: &mut WindowContext) -> Option<AnyElement> {
2136 let mouse_context_menu = self.editor.read(cx).mouse_context_menu.as_ref()?;
2137 let mut element = deferred(
2138 anchored()
2139 .position(mouse_context_menu.position)
2140 .child(mouse_context_menu.context_menu.clone())
2141 .anchor(AnchorCorner::TopLeft)
2142 .snap_to_window(),
2143 )
2144 .with_priority(1)
2145 .into_any();
2146
2147 element.prepaint_as_root(gpui::Point::default(), AvailableSpace::min_size(), cx);
2148 Some(element)
2149 }
2150
2151 #[allow(clippy::too_many_arguments)]
2152 fn layout_hover_popovers(
2153 &self,
2154 snapshot: &EditorSnapshot,
2155 hitbox: &Hitbox,
2156 text_hitbox: &Hitbox,
2157 visible_display_row_range: Range<DisplayRow>,
2158 content_origin: gpui::Point<Pixels>,
2159 scroll_pixel_position: gpui::Point<Pixels>,
2160 line_layouts: &[LineWithInvisibles],
2161 line_height: Pixels,
2162 em_width: Pixels,
2163 cx: &mut WindowContext,
2164 ) {
2165 struct MeasuredHoverPopover {
2166 element: AnyElement,
2167 size: Size<Pixels>,
2168 horizontal_offset: Pixels,
2169 }
2170
2171 let max_size = size(
2172 (120. * em_width) // Default size
2173 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2174 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2175 (16. * line_height) // Default size
2176 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2177 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2178 );
2179
2180 let hover_popovers = self.editor.update(cx, |editor, cx| {
2181 editor.hover_state.render(
2182 &snapshot,
2183 &self.style,
2184 visible_display_row_range.clone(),
2185 max_size,
2186 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2187 cx,
2188 )
2189 });
2190 let Some((position, hover_popovers)) = hover_popovers else {
2191 return;
2192 };
2193
2194 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2195
2196 // This is safe because we check on layout whether the required row is available
2197 let hovered_row_layout =
2198 &line_layouts[position.row().minus(visible_display_row_range.start) as usize].line;
2199
2200 // Compute Hovered Point
2201 let x =
2202 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2203 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
2204 let hovered_point = content_origin + point(x, y);
2205
2206 let mut overall_height = Pixels::ZERO;
2207 let mut measured_hover_popovers = Vec::new();
2208 for mut hover_popover in hover_popovers {
2209 let size = hover_popover.layout_as_root(available_space, cx);
2210 let horizontal_offset =
2211 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2212
2213 overall_height += HOVER_POPOVER_GAP + size.height;
2214
2215 measured_hover_popovers.push(MeasuredHoverPopover {
2216 element: hover_popover,
2217 size,
2218 horizontal_offset,
2219 });
2220 }
2221 overall_height += HOVER_POPOVER_GAP;
2222
2223 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2224 let mut occlusion = div()
2225 .size_full()
2226 .occlude()
2227 .on_mouse_move(|_, cx| cx.stop_propagation())
2228 .into_any_element();
2229 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2230 cx.defer_draw(occlusion, origin, 2);
2231 }
2232
2233 if hovered_point.y > overall_height {
2234 // There is enough space above. Render popovers above the hovered point
2235 let mut current_y = hovered_point.y;
2236 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2237 let size = popover.size;
2238 let popover_origin = point(
2239 hovered_point.x + popover.horizontal_offset,
2240 current_y - size.height,
2241 );
2242
2243 cx.defer_draw(popover.element, popover_origin, 2);
2244 if position != itertools::Position::Last {
2245 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2246 draw_occluder(size.width, origin, cx);
2247 }
2248
2249 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2250 }
2251 } else {
2252 // There is not enough space above. Render popovers below the hovered point
2253 let mut current_y = hovered_point.y + line_height;
2254 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2255 let size = popover.size;
2256 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2257
2258 cx.defer_draw(popover.element, popover_origin, 2);
2259 if position != itertools::Position::Last {
2260 let origin = point(popover_origin.x, popover_origin.y + size.height);
2261 draw_occluder(size.width, origin, cx);
2262 }
2263
2264 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2265 }
2266 }
2267 }
2268
2269 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2270 cx.paint_layer(layout.hitbox.bounds, |cx| {
2271 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2272 let gutter_bg = cx.theme().colors().editor_gutter_background;
2273 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2274 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2275
2276 if let EditorMode::Full = layout.mode {
2277 let mut active_rows = layout.active_rows.iter().peekable();
2278 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2279 let mut end_row = start_row.0;
2280 while active_rows
2281 .peek()
2282 .map_or(false, |(active_row, has_selection)| {
2283 active_row.0 == end_row + 1
2284 && *has_selection == contains_non_empty_selection
2285 })
2286 {
2287 active_rows.next().unwrap();
2288 end_row += 1;
2289 }
2290
2291 if !contains_non_empty_selection {
2292 let origin = point(
2293 layout.hitbox.origin.x,
2294 layout.hitbox.origin.y
2295 + (start_row.as_f32() - scroll_top)
2296 * layout.position_map.line_height,
2297 );
2298 let size = size(
2299 layout.hitbox.size.width,
2300 layout.position_map.line_height * (end_row - start_row.0 + 1) as f32,
2301 );
2302 let active_line_bg = cx.theme().colors().editor_active_line_background;
2303 cx.paint_quad(fill(Bounds { origin, size }, active_line_bg));
2304 }
2305 }
2306
2307 let mut paint_highlight =
2308 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
2309 let origin = point(
2310 layout.hitbox.origin.x,
2311 layout.hitbox.origin.y
2312 + (highlight_row_start.as_f32() - scroll_top)
2313 * layout.position_map.line_height,
2314 );
2315 let size = size(
2316 layout.hitbox.size.width,
2317 layout.position_map.line_height
2318 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
2319 );
2320 cx.paint_quad(fill(Bounds { origin, size }, color));
2321 };
2322
2323 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
2324 for (&new_row, &new_color) in &layout.highlighted_rows {
2325 match &mut current_paint {
2326 Some((current_color, current_range)) => {
2327 let current_color = *current_color;
2328 let new_range_started = current_color != new_color
2329 || current_range.end.next_row() != new_row;
2330 if new_range_started {
2331 paint_highlight(
2332 current_range.start,
2333 current_range.end,
2334 current_color,
2335 );
2336 current_paint = Some((new_color, new_row..new_row));
2337 continue;
2338 } else {
2339 current_range.end = current_range.end.next_row();
2340 }
2341 }
2342 None => current_paint = Some((new_color, new_row..new_row)),
2343 };
2344 }
2345 if let Some((color, range)) = current_paint {
2346 paint_highlight(range.start, range.end, color);
2347 }
2348
2349 let scroll_left =
2350 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
2351
2352 for (wrap_position, active) in layout.wrap_guides.iter() {
2353 let x = (layout.text_hitbox.origin.x
2354 + *wrap_position
2355 + layout.position_map.em_width / 2.)
2356 - scroll_left;
2357
2358 let show_scrollbars = layout
2359 .scrollbar_layout
2360 .as_ref()
2361 .map_or(false, |scrollbar| scrollbar.visible);
2362 if x < layout.text_hitbox.origin.x
2363 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
2364 {
2365 continue;
2366 }
2367
2368 let color = if *active {
2369 cx.theme().colors().editor_active_wrap_guide
2370 } else {
2371 cx.theme().colors().editor_wrap_guide
2372 };
2373 cx.paint_quad(fill(
2374 Bounds {
2375 origin: point(x, layout.text_hitbox.origin.y),
2376 size: size(px(1.), layout.text_hitbox.size.height),
2377 },
2378 color,
2379 ));
2380 }
2381 }
2382 })
2383 }
2384
2385 fn paint_gutter(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2386 let line_height = layout.position_map.line_height;
2387
2388 let scroll_position = layout.position_map.snapshot.scroll_position();
2389 let scroll_top = scroll_position.y * line_height;
2390
2391 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
2392 for (_, hunk_hitbox) in &layout.display_hunks {
2393 if let Some(hunk_hitbox) = hunk_hitbox {
2394 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
2395 }
2396 }
2397
2398 let show_git_gutter = matches!(
2399 ProjectSettings::get_global(cx).git.git_gutter,
2400 Some(GitGutterSetting::TrackedFiles)
2401 );
2402 if show_git_gutter {
2403 Self::paint_diff_hunks(layout.gutter_hitbox.bounds, layout, cx)
2404 }
2405
2406 if layout.blamed_display_rows.is_some() {
2407 self.paint_blamed_display_rows(layout, cx);
2408 }
2409
2410 for (ix, line) in layout.line_numbers.iter().enumerate() {
2411 if let Some(line) = line {
2412 let line_origin = layout.gutter_hitbox.origin
2413 + point(
2414 layout.gutter_hitbox.size.width
2415 - line.width
2416 - layout.gutter_dimensions.right_padding,
2417 ix as f32 * line_height - (scroll_top % line_height),
2418 );
2419
2420 line.paint(line_origin, line_height, cx).log_err();
2421 }
2422 }
2423
2424 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2425 cx.with_element_namespace("gutter_fold_indicators", |cx| {
2426 for fold_indicator in layout.fold_indicators.iter_mut().flatten() {
2427 fold_indicator.paint(cx);
2428 }
2429 });
2430
2431 for test_indicators in layout.test_indicators.iter_mut() {
2432 test_indicators.paint(cx);
2433 }
2434
2435 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
2436 indicator.paint(cx);
2437 }
2438 });
2439 }
2440
2441 fn paint_diff_hunks(
2442 gutter_bounds: Bounds<Pixels>,
2443 layout: &EditorLayout,
2444 cx: &mut WindowContext,
2445 ) {
2446 if layout.display_hunks.is_empty() {
2447 return;
2448 }
2449
2450 let line_height = layout.position_map.line_height;
2451 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2452 for (hunk, hitbox) in &layout.display_hunks {
2453 let hunk_to_paint = match hunk {
2454 DisplayDiffHunk::Folded { .. } => {
2455 let hunk_bounds = Self::diff_hunk_bounds(
2456 &layout.position_map.snapshot,
2457 line_height,
2458 gutter_bounds,
2459 &hunk,
2460 );
2461 Some((
2462 hunk_bounds,
2463 cx.theme().status().modified,
2464 Corners::all(1. * line_height),
2465 ))
2466 }
2467 DisplayDiffHunk::Unfolded { status, .. } => {
2468 hitbox.as_ref().map(|hunk_hitbox| match status {
2469 DiffHunkStatus::Added => (
2470 hunk_hitbox.bounds,
2471 cx.theme().status().created,
2472 Corners::all(0.05 * line_height),
2473 ),
2474 DiffHunkStatus::Modified => (
2475 hunk_hitbox.bounds,
2476 cx.theme().status().modified,
2477 Corners::all(0.05 * line_height),
2478 ),
2479 DiffHunkStatus::Removed => (
2480 hunk_hitbox.bounds,
2481 cx.theme().status().deleted,
2482 Corners::all(1. * line_height),
2483 ),
2484 })
2485 }
2486 };
2487
2488 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
2489 cx.paint_quad(quad(
2490 hunk_bounds,
2491 corner_radii,
2492 background_color,
2493 Edges::default(),
2494 transparent_black(),
2495 ));
2496 }
2497 }
2498 });
2499 }
2500
2501 fn diff_hunk_bounds(
2502 snapshot: &EditorSnapshot,
2503 line_height: Pixels,
2504 bounds: Bounds<Pixels>,
2505 hunk: &DisplayDiffHunk,
2506 ) -> Bounds<Pixels> {
2507 let scroll_position = snapshot.scroll_position();
2508 let scroll_top = scroll_position.y * line_height;
2509
2510 match hunk {
2511 DisplayDiffHunk::Folded { display_row, .. } => {
2512 let start_y = display_row.as_f32() * line_height - scroll_top;
2513 let end_y = start_y + line_height;
2514
2515 let width = 0.275 * line_height;
2516 let highlight_origin = bounds.origin + point(-width, start_y);
2517 let highlight_size = size(width * 2., end_y - start_y);
2518 Bounds::new(highlight_origin, highlight_size)
2519 }
2520 DisplayDiffHunk::Unfolded {
2521 display_row_range,
2522 status,
2523 ..
2524 } => match status {
2525 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
2526 let start_row = display_row_range.start;
2527 let end_row = display_row_range.end;
2528 // If we're in a multibuffer, row range span might include an
2529 // excerpt header, so if we were to draw the marker straight away,
2530 // the hunk might include the rows of that header.
2531 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
2532 // Instead, we simply check whether the range we're dealing with includes
2533 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
2534 let end_row_in_current_excerpt = snapshot
2535 .blocks_in_range(start_row..end_row)
2536 .find_map(|(start_row, block)| {
2537 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
2538 Some(start_row)
2539 } else {
2540 None
2541 }
2542 })
2543 .unwrap_or(end_row);
2544
2545 let start_y = start_row.as_f32() * line_height - scroll_top;
2546 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
2547
2548 let width = 0.275 * line_height;
2549 let highlight_origin = bounds.origin + point(-width, start_y);
2550 let highlight_size = size(width * 2., end_y - start_y);
2551 Bounds::new(highlight_origin, highlight_size)
2552 }
2553 DiffHunkStatus::Removed => {
2554 let row = display_row_range.start;
2555
2556 let offset = line_height / 2.;
2557 let start_y = row.as_f32() * line_height - offset - scroll_top;
2558 let end_y = start_y + line_height;
2559
2560 let width = 0.35 * line_height;
2561 let highlight_origin = bounds.origin + point(-width, start_y);
2562 let highlight_size = size(width * 2., end_y - start_y);
2563 Bounds::new(highlight_origin, highlight_size)
2564 }
2565 },
2566 }
2567 }
2568
2569 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2570 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
2571 return;
2572 };
2573
2574 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2575 for mut blame_element in blamed_display_rows.into_iter() {
2576 blame_element.paint(cx);
2577 }
2578 })
2579 }
2580
2581 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2582 cx.with_content_mask(
2583 Some(ContentMask {
2584 bounds: layout.text_hitbox.bounds,
2585 }),
2586 |cx| {
2587 let cursor_style = if self
2588 .editor
2589 .read(cx)
2590 .hovered_link_state
2591 .as_ref()
2592 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
2593 {
2594 CursorStyle::PointingHand
2595 } else {
2596 CursorStyle::IBeam
2597 };
2598 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
2599
2600 cx.with_element_namespace("folds", |cx| self.paint_folds(layout, cx));
2601 let invisible_display_ranges = self.paint_highlights(layout, cx);
2602 self.paint_lines(&invisible_display_ranges, layout, cx);
2603 self.paint_redactions(layout, cx);
2604 self.paint_cursors(layout, cx);
2605 self.paint_inline_blame(layout, cx);
2606 },
2607 )
2608 }
2609
2610 fn paint_highlights(
2611 &mut self,
2612 layout: &mut EditorLayout,
2613 cx: &mut WindowContext,
2614 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
2615 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2616 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
2617 let line_end_overshoot = 0.15 * layout.position_map.line_height;
2618 for (range, color) in &layout.highlighted_ranges {
2619 self.paint_highlighted_range(
2620 range.clone(),
2621 *color,
2622 Pixels::ZERO,
2623 line_end_overshoot,
2624 layout,
2625 cx,
2626 );
2627 }
2628
2629 let corner_radius = 0.15 * layout.position_map.line_height;
2630
2631 for (player_color, selections) in &layout.selections {
2632 for selection in selections.into_iter() {
2633 self.paint_highlighted_range(
2634 selection.range.clone(),
2635 player_color.selection,
2636 corner_radius,
2637 corner_radius * 2.,
2638 layout,
2639 cx,
2640 );
2641
2642 if selection.is_local && !selection.range.is_empty() {
2643 invisible_display_ranges.push(selection.range.clone());
2644 }
2645 }
2646 }
2647 invisible_display_ranges
2648 })
2649 }
2650
2651 fn paint_lines(
2652 &mut self,
2653 invisible_display_ranges: &[Range<DisplayPoint>],
2654 layout: &EditorLayout,
2655 cx: &mut WindowContext,
2656 ) {
2657 let whitespace_setting = self
2658 .editor
2659 .read(cx)
2660 .buffer
2661 .read(cx)
2662 .settings_at(0, cx)
2663 .show_whitespaces;
2664
2665 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
2666 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
2667 line_with_invisibles.draw(
2668 layout,
2669 row,
2670 layout.content_origin,
2671 whitespace_setting,
2672 invisible_display_ranges,
2673 cx,
2674 )
2675 }
2676 }
2677
2678 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
2679 if layout.redacted_ranges.is_empty() {
2680 return;
2681 }
2682
2683 let line_end_overshoot = layout.line_end_overshoot();
2684
2685 // A softer than perfect black
2686 let redaction_color = gpui::rgb(0x0e1111);
2687
2688 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2689 for range in layout.redacted_ranges.iter() {
2690 self.paint_highlighted_range(
2691 range.clone(),
2692 redaction_color.into(),
2693 Pixels::ZERO,
2694 line_end_overshoot,
2695 layout,
2696 cx,
2697 );
2698 }
2699 });
2700 }
2701
2702 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2703 for cursor in &mut layout.visible_cursors {
2704 cursor.paint(layout.content_origin, cx);
2705 }
2706 }
2707
2708 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2709 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
2710 return;
2711 };
2712
2713 let thumb_bounds = scrollbar_layout.thumb_bounds();
2714 if scrollbar_layout.visible {
2715 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
2716 cx.paint_quad(quad(
2717 scrollbar_layout.hitbox.bounds,
2718 Corners::default(),
2719 cx.theme().colors().scrollbar_track_background,
2720 Edges {
2721 top: Pixels::ZERO,
2722 right: Pixels::ZERO,
2723 bottom: Pixels::ZERO,
2724 left: ScrollbarLayout::BORDER_WIDTH,
2725 },
2726 cx.theme().colors().scrollbar_track_border,
2727 ));
2728
2729 let fast_markers =
2730 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
2731 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
2732 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
2733
2734 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
2735 for marker in markers.iter().chain(&fast_markers) {
2736 let mut marker = marker.clone();
2737 marker.bounds.origin += scrollbar_layout.hitbox.origin;
2738 cx.paint_quad(marker);
2739 }
2740
2741 cx.paint_quad(quad(
2742 thumb_bounds,
2743 Corners::default(),
2744 cx.theme().colors().scrollbar_thumb_background,
2745 Edges {
2746 top: Pixels::ZERO,
2747 right: Pixels::ZERO,
2748 bottom: Pixels::ZERO,
2749 left: ScrollbarLayout::BORDER_WIDTH,
2750 },
2751 cx.theme().colors().scrollbar_thumb_border,
2752 ));
2753 });
2754 }
2755
2756 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
2757
2758 let row_height = scrollbar_layout.row_height;
2759 let row_range = scrollbar_layout.visible_row_range.clone();
2760
2761 cx.on_mouse_event({
2762 let editor = self.editor.clone();
2763 let hitbox = scrollbar_layout.hitbox.clone();
2764 let mut mouse_position = cx.mouse_position();
2765 move |event: &MouseMoveEvent, phase, cx| {
2766 if phase == DispatchPhase::Capture {
2767 return;
2768 }
2769
2770 editor.update(cx, |editor, cx| {
2771 if event.pressed_button == Some(MouseButton::Left)
2772 && editor.scroll_manager.is_dragging_scrollbar()
2773 {
2774 let y = mouse_position.y;
2775 let new_y = event.position.y;
2776 if (hitbox.top()..hitbox.bottom()).contains(&y) {
2777 let mut position = editor.scroll_position(cx);
2778 position.y += (new_y - y) / row_height;
2779 if position.y < 0.0 {
2780 position.y = 0.0;
2781 }
2782 editor.set_scroll_position(position, cx);
2783 }
2784
2785 cx.stop_propagation();
2786 } else {
2787 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2788 if hitbox.is_hovered(cx) {
2789 editor.scroll_manager.show_scrollbar(cx);
2790 }
2791 }
2792 mouse_position = event.position;
2793 })
2794 }
2795 });
2796
2797 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
2798 cx.on_mouse_event({
2799 let editor = self.editor.clone();
2800 move |_: &MouseUpEvent, phase, cx| {
2801 if phase == DispatchPhase::Capture {
2802 return;
2803 }
2804
2805 editor.update(cx, |editor, cx| {
2806 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2807 cx.stop_propagation();
2808 });
2809 }
2810 });
2811 } else {
2812 cx.on_mouse_event({
2813 let editor = self.editor.clone();
2814 let hitbox = scrollbar_layout.hitbox.clone();
2815 move |event: &MouseDownEvent, phase, cx| {
2816 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
2817 return;
2818 }
2819
2820 editor.update(cx, |editor, cx| {
2821 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
2822
2823 let y = event.position.y;
2824 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
2825 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
2826 let top_row = center_row
2827 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
2828 let mut position = editor.scroll_position(cx);
2829 position.y = top_row as f32;
2830 editor.set_scroll_position(position, cx);
2831 } else {
2832 editor.scroll_manager.show_scrollbar(cx);
2833 }
2834
2835 cx.stop_propagation();
2836 });
2837 }
2838 });
2839 }
2840 }
2841
2842 fn collect_fast_scrollbar_markers(
2843 &self,
2844 layout: &EditorLayout,
2845 scrollbar_layout: &ScrollbarLayout,
2846 cx: &mut WindowContext,
2847 ) -> Vec<PaintQuad> {
2848 const LIMIT: usize = 100;
2849 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
2850 return vec![];
2851 }
2852 let cursor_ranges = layout
2853 .cursors
2854 .iter()
2855 .map(|(point, color)| ColoredRange {
2856 start: point.row(),
2857 end: point.row(),
2858 color: *color,
2859 })
2860 .collect_vec();
2861 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
2862 }
2863
2864 fn refresh_slow_scrollbar_markers(
2865 &self,
2866 layout: &EditorLayout,
2867 scrollbar_layout: &ScrollbarLayout,
2868 cx: &mut WindowContext,
2869 ) {
2870 self.editor.update(cx, |editor, cx| {
2871 if !editor.is_singleton(cx)
2872 || !editor
2873 .scrollbar_marker_state
2874 .should_refresh(scrollbar_layout.hitbox.size)
2875 {
2876 return;
2877 }
2878
2879 let scrollbar_layout = scrollbar_layout.clone();
2880 let background_highlights = editor.background_highlights.clone();
2881 let snapshot = layout.position_map.snapshot.clone();
2882 let theme = cx.theme().clone();
2883 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
2884
2885 editor.scrollbar_marker_state.dirty = false;
2886 editor.scrollbar_marker_state.pending_refresh =
2887 Some(cx.spawn(|editor, mut cx| async move {
2888 let scrollbar_size = scrollbar_layout.hitbox.size;
2889 let scrollbar_markers = cx
2890 .background_executor()
2891 .spawn(async move {
2892 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
2893 let mut marker_quads = Vec::new();
2894 if scrollbar_settings.git_diff {
2895 let marker_row_ranges = snapshot
2896 .buffer_snapshot
2897 .git_diff_hunks_in_range(
2898 MultiBufferRow::MIN..MultiBufferRow::MAX,
2899 )
2900 .map(|hunk| {
2901 let start_display_row =
2902 MultiBufferPoint::new(hunk.associated_range.start.0, 0)
2903 .to_display_point(&snapshot.display_snapshot)
2904 .row();
2905 let mut end_display_row =
2906 MultiBufferPoint::new(hunk.associated_range.end.0, 0)
2907 .to_display_point(&snapshot.display_snapshot)
2908 .row();
2909 if end_display_row != start_display_row {
2910 end_display_row.0 -= 1;
2911 }
2912 let color = match hunk_status(&hunk) {
2913 DiffHunkStatus::Added => theme.status().created,
2914 DiffHunkStatus::Modified => theme.status().modified,
2915 DiffHunkStatus::Removed => theme.status().deleted,
2916 };
2917 ColoredRange {
2918 start: start_display_row,
2919 end: end_display_row,
2920 color,
2921 }
2922 });
2923
2924 marker_quads.extend(
2925 scrollbar_layout
2926 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
2927 );
2928 }
2929
2930 for (background_highlight_id, (_, background_ranges)) in
2931 background_highlights.iter()
2932 {
2933 let is_search_highlights = *background_highlight_id
2934 == TypeId::of::<BufferSearchHighlights>();
2935 let is_symbol_occurrences = *background_highlight_id
2936 == TypeId::of::<DocumentHighlightRead>()
2937 || *background_highlight_id
2938 == TypeId::of::<DocumentHighlightWrite>();
2939 if (is_search_highlights && scrollbar_settings.search_results)
2940 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
2941 {
2942 let mut color = theme.status().info;
2943 if is_symbol_occurrences {
2944 color.fade_out(0.5);
2945 }
2946 let marker_row_ranges =
2947 background_ranges.into_iter().map(|range| {
2948 let display_start = range
2949 .start
2950 .to_display_point(&snapshot.display_snapshot);
2951 let display_end = range
2952 .end
2953 .to_display_point(&snapshot.display_snapshot);
2954 ColoredRange {
2955 start: display_start.row(),
2956 end: display_end.row(),
2957 color,
2958 }
2959 });
2960 marker_quads.extend(
2961 scrollbar_layout
2962 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
2963 );
2964 }
2965 }
2966
2967 if scrollbar_settings.diagnostics {
2968 let diagnostics = snapshot
2969 .buffer_snapshot
2970 .diagnostics_in_range::<_, Point>(
2971 Point::zero()..max_point,
2972 false,
2973 )
2974 // We want to sort by severity, in order to paint the most severe diagnostics last.
2975 .sorted_by_key(|diagnostic| {
2976 std::cmp::Reverse(diagnostic.diagnostic.severity)
2977 });
2978
2979 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
2980 let start_display = diagnostic
2981 .range
2982 .start
2983 .to_display_point(&snapshot.display_snapshot);
2984 let end_display = diagnostic
2985 .range
2986 .end
2987 .to_display_point(&snapshot.display_snapshot);
2988 let color = match diagnostic.diagnostic.severity {
2989 DiagnosticSeverity::ERROR => theme.status().error,
2990 DiagnosticSeverity::WARNING => theme.status().warning,
2991 DiagnosticSeverity::INFORMATION => theme.status().info,
2992 _ => theme.status().hint,
2993 };
2994 ColoredRange {
2995 start: start_display.row(),
2996 end: end_display.row(),
2997 color,
2998 }
2999 });
3000 marker_quads.extend(
3001 scrollbar_layout
3002 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
3003 );
3004 }
3005
3006 Arc::from(marker_quads)
3007 })
3008 .await;
3009
3010 editor.update(&mut cx, |editor, cx| {
3011 editor.scrollbar_marker_state.markers = scrollbar_markers;
3012 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
3013 editor.scrollbar_marker_state.pending_refresh = None;
3014 cx.notify();
3015 })?;
3016
3017 Ok(())
3018 }));
3019 });
3020 }
3021
3022 #[allow(clippy::too_many_arguments)]
3023 fn paint_highlighted_range(
3024 &self,
3025 range: Range<DisplayPoint>,
3026 color: Hsla,
3027 corner_radius: Pixels,
3028 line_end_overshoot: Pixels,
3029 layout: &EditorLayout,
3030 cx: &mut WindowContext,
3031 ) {
3032 let start_row = layout.visible_display_row_range.start;
3033 let end_row = layout.visible_display_row_range.end;
3034 if range.start != range.end {
3035 let row_range = if range.end.column() == 0 {
3036 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3037 } else {
3038 cmp::max(range.start.row(), start_row)
3039 ..cmp::min(range.end.row().next_row(), end_row)
3040 };
3041
3042 let highlighted_range = HighlightedRange {
3043 color,
3044 line_height: layout.position_map.line_height,
3045 corner_radius,
3046 start_y: layout.content_origin.y
3047 + row_range.start.as_f32() * layout.position_map.line_height
3048 - layout.position_map.scroll_pixel_position.y,
3049 lines: row_range
3050 .iter_rows()
3051 .map(|row| {
3052 let line_layout =
3053 &layout.position_map.line_layouts[row.minus(start_row) as usize].line;
3054 HighlightedRangeLine {
3055 start_x: if row == range.start.row() {
3056 layout.content_origin.x
3057 + line_layout.x_for_index(range.start.column() as usize)
3058 - layout.position_map.scroll_pixel_position.x
3059 } else {
3060 layout.content_origin.x
3061 - layout.position_map.scroll_pixel_position.x
3062 },
3063 end_x: if row == range.end.row() {
3064 layout.content_origin.x
3065 + line_layout.x_for_index(range.end.column() as usize)
3066 - layout.position_map.scroll_pixel_position.x
3067 } else {
3068 layout.content_origin.x + line_layout.width + line_end_overshoot
3069 - layout.position_map.scroll_pixel_position.x
3070 },
3071 }
3072 })
3073 .collect(),
3074 };
3075
3076 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3077 }
3078 }
3079
3080 fn paint_folds(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3081 if layout.folds.is_empty() {
3082 return;
3083 }
3084
3085 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3086 let fold_corner_radius = 0.15 * layout.position_map.line_height;
3087 for mut fold in mem::take(&mut layout.folds) {
3088 fold.hover_element.paint(cx);
3089
3090 let hover_element = fold.hover_element.downcast_mut::<Stateful<Div>>().unwrap();
3091 let fold_background = if hover_element.interactivity().active.unwrap() {
3092 cx.theme().colors().ghost_element_active
3093 } else if hover_element.interactivity().hovered.unwrap() {
3094 cx.theme().colors().ghost_element_hover
3095 } else {
3096 cx.theme().colors().ghost_element_background
3097 };
3098
3099 self.paint_highlighted_range(
3100 fold.display_range.clone(),
3101 fold_background,
3102 fold_corner_radius,
3103 fold_corner_radius * 2.,
3104 layout,
3105 cx,
3106 );
3107 }
3108 })
3109 }
3110
3111 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3112 if let Some(mut inline_blame) = layout.inline_blame.take() {
3113 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3114 inline_blame.paint(cx);
3115 })
3116 }
3117 }
3118
3119 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3120 for mut block in layout.blocks.drain(..) {
3121 block.element.paint(cx);
3122 }
3123 }
3124
3125 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3126 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3127 mouse_context_menu.paint(cx);
3128 }
3129 }
3130
3131 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3132 cx.on_mouse_event({
3133 let position_map = layout.position_map.clone();
3134 let editor = self.editor.clone();
3135 let hitbox = layout.hitbox.clone();
3136 let mut delta = ScrollDelta::default();
3137
3138 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3139 // accidentally turn off their scrolling.
3140 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3141
3142 move |event: &ScrollWheelEvent, phase, cx| {
3143 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3144 delta = delta.coalesce(event.delta);
3145 editor.update(cx, |editor, cx| {
3146 let position_map: &PositionMap = &position_map;
3147
3148 let line_height = position_map.line_height;
3149 let max_glyph_width = position_map.em_width;
3150 let (delta, axis) = match delta {
3151 gpui::ScrollDelta::Pixels(mut pixels) => {
3152 //Trackpad
3153 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3154 (pixels, axis)
3155 }
3156
3157 gpui::ScrollDelta::Lines(lines) => {
3158 //Not trackpad
3159 let pixels =
3160 point(lines.x * max_glyph_width, lines.y * line_height);
3161 (pixels, None)
3162 }
3163 };
3164
3165 let current_scroll_position = position_map.snapshot.scroll_position();
3166 let x = (current_scroll_position.x * max_glyph_width
3167 - (delta.x * scroll_sensitivity))
3168 / max_glyph_width;
3169 let y = (current_scroll_position.y * line_height
3170 - (delta.y * scroll_sensitivity))
3171 / line_height;
3172 let mut scroll_position =
3173 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
3174 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
3175 if forbid_vertical_scroll {
3176 scroll_position.y = current_scroll_position.y;
3177 if scroll_position == current_scroll_position {
3178 return;
3179 }
3180 }
3181 editor.scroll(scroll_position, axis, cx);
3182 cx.stop_propagation();
3183 });
3184 }
3185 }
3186 });
3187 }
3188
3189 fn paint_mouse_listeners(
3190 &mut self,
3191 layout: &EditorLayout,
3192 hovered_hunk: Option<HunkToExpand>,
3193 cx: &mut WindowContext,
3194 ) {
3195 self.paint_scroll_wheel_listener(layout, cx);
3196
3197 cx.on_mouse_event({
3198 let position_map = layout.position_map.clone();
3199 let editor = self.editor.clone();
3200 let text_hitbox = layout.text_hitbox.clone();
3201 let gutter_hitbox = layout.gutter_hitbox.clone();
3202
3203 move |event: &MouseDownEvent, phase, cx| {
3204 if phase == DispatchPhase::Bubble {
3205 match event.button {
3206 MouseButton::Left => editor.update(cx, |editor, cx| {
3207 Self::mouse_left_down(
3208 editor,
3209 event,
3210 hovered_hunk.as_ref(),
3211 &position_map,
3212 &text_hitbox,
3213 &gutter_hitbox,
3214 cx,
3215 );
3216 }),
3217 MouseButton::Right => editor.update(cx, |editor, cx| {
3218 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
3219 }),
3220 MouseButton::Middle => editor.update(cx, |editor, cx| {
3221 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
3222 }),
3223 _ => {}
3224 };
3225 }
3226 }
3227 });
3228
3229 cx.on_mouse_event({
3230 let editor = self.editor.clone();
3231 let position_map = layout.position_map.clone();
3232 let text_hitbox = layout.text_hitbox.clone();
3233
3234 move |event: &MouseUpEvent, phase, cx| {
3235 if phase == DispatchPhase::Bubble {
3236 editor.update(cx, |editor, cx| {
3237 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
3238 });
3239 }
3240 }
3241 });
3242 cx.on_mouse_event({
3243 let position_map = layout.position_map.clone();
3244 let editor = self.editor.clone();
3245 let text_hitbox = layout.text_hitbox.clone();
3246 let gutter_hitbox = layout.gutter_hitbox.clone();
3247
3248 move |event: &MouseMoveEvent, phase, cx| {
3249 if phase == DispatchPhase::Bubble {
3250 editor.update(cx, |editor, cx| {
3251 if event.pressed_button == Some(MouseButton::Left) {
3252 Self::mouse_dragged(
3253 editor,
3254 event,
3255 &position_map,
3256 text_hitbox.bounds,
3257 cx,
3258 )
3259 }
3260
3261 Self::mouse_moved(
3262 editor,
3263 event,
3264 &position_map,
3265 &text_hitbox,
3266 &gutter_hitbox,
3267 cx,
3268 )
3269 });
3270 }
3271 }
3272 });
3273 }
3274
3275 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
3276 bounds.upper_right().x - self.style.scrollbar_width
3277 }
3278
3279 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
3280 let style = &self.style;
3281 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3282 let layout = cx
3283 .text_system()
3284 .shape_line(
3285 SharedString::from(" ".repeat(column)),
3286 font_size,
3287 &[TextRun {
3288 len: column,
3289 font: style.text.font(),
3290 color: Hsla::default(),
3291 background_color: None,
3292 underline: None,
3293 strikethrough: None,
3294 }],
3295 )
3296 .unwrap();
3297
3298 layout.width
3299 }
3300
3301 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
3302 let digit_count = snapshot
3303 .max_buffer_row()
3304 .next_row()
3305 .as_f32()
3306 .log10()
3307 .floor() as usize
3308 + 1;
3309 self.column_pixels(digit_count, cx)
3310 }
3311}
3312
3313fn prepaint_gutter_button(
3314 button: IconButton,
3315 row: DisplayRow,
3316 line_height: Pixels,
3317 gutter_dimensions: &GutterDimensions,
3318 scroll_pixel_position: gpui::Point<Pixels>,
3319 gutter_hitbox: &Hitbox,
3320 cx: &mut WindowContext<'_>,
3321) -> AnyElement {
3322 let mut button = button.into_any_element();
3323 let available_space = size(
3324 AvailableSpace::MinContent,
3325 AvailableSpace::Definite(line_height),
3326 );
3327 let indicator_size = button.layout_as_root(available_space, cx);
3328
3329 let blame_width = gutter_dimensions
3330 .git_blame_entries_width
3331 .unwrap_or(Pixels::ZERO);
3332
3333 let mut x = blame_width;
3334 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
3335 - indicator_size.width
3336 - blame_width;
3337 x += available_width / 2.;
3338
3339 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
3340 y += (line_height - indicator_size.height) / 2.;
3341
3342 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
3343 button
3344}
3345
3346fn render_inline_blame_entry(
3347 blame: &gpui::Model<GitBlame>,
3348 blame_entry: BlameEntry,
3349 style: &EditorStyle,
3350 workspace: Option<WeakView<Workspace>>,
3351 cx: &mut WindowContext<'_>,
3352) -> AnyElement {
3353 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3354
3355 let author = blame_entry.author.as_deref().unwrap_or_default();
3356 let text = format!("{}, {}", author, relative_timestamp);
3357
3358 let details = blame.read(cx).details_for_entry(&blame_entry);
3359
3360 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
3361
3362 h_flex()
3363 .id("inline-blame")
3364 .w_full()
3365 .font_family(style.text.font().family)
3366 .text_color(cx.theme().status().hint)
3367 .line_height(style.text.line_height)
3368 .child(Icon::new(IconName::FileGit).color(Color::Hint))
3369 .child(text)
3370 .gap_2()
3371 .hoverable_tooltip(move |_| tooltip.clone().into())
3372 .into_any()
3373}
3374
3375fn render_blame_entry(
3376 ix: usize,
3377 blame: &gpui::Model<GitBlame>,
3378 blame_entry: BlameEntry,
3379 style: &EditorStyle,
3380 last_used_color: &mut Option<(PlayerColor, Oid)>,
3381 editor: View<Editor>,
3382 cx: &mut WindowContext<'_>,
3383) -> AnyElement {
3384 let mut sha_color = cx
3385 .theme()
3386 .players()
3387 .color_for_participant(blame_entry.sha.into());
3388 // If the last color we used is the same as the one we get for this line, but
3389 // the commit SHAs are different, then we try again to get a different color.
3390 match *last_used_color {
3391 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
3392 let index: u32 = blame_entry.sha.into();
3393 sha_color = cx.theme().players().color_for_participant(index + 1);
3394 }
3395 _ => {}
3396 };
3397 last_used_color.replace((sha_color, blame_entry.sha));
3398
3399 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3400
3401 let short_commit_id = blame_entry.sha.display_short();
3402
3403 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
3404 let name = util::truncate_and_trailoff(author_name, 20);
3405
3406 let details = blame.read(cx).details_for_entry(&blame_entry);
3407
3408 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
3409
3410 let tooltip = cx.new_view(|_| {
3411 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
3412 });
3413
3414 h_flex()
3415 .w_full()
3416 .font_family(style.text.font().family)
3417 .line_height(style.text.line_height)
3418 .id(("blame", ix))
3419 .children([
3420 div()
3421 .text_color(sha_color.cursor)
3422 .child(short_commit_id)
3423 .mr_2(),
3424 div()
3425 .w_full()
3426 .h_flex()
3427 .justify_between()
3428 .text_color(cx.theme().status().hint)
3429 .child(name)
3430 .child(relative_timestamp),
3431 ])
3432 .on_mouse_down(MouseButton::Right, {
3433 let blame_entry = blame_entry.clone();
3434 move |event, cx| {
3435 deploy_blame_entry_context_menu(&blame_entry, editor.clone(), event.position, cx);
3436 }
3437 })
3438 .hover(|style| style.bg(cx.theme().colors().element_hover))
3439 .when_some(
3440 details.and_then(|details| details.permalink),
3441 |this, url| {
3442 let url = url.clone();
3443 this.cursor_pointer().on_click(move |_, cx| {
3444 cx.stop_propagation();
3445 cx.open_url(url.as_str())
3446 })
3447 },
3448 )
3449 .hoverable_tooltip(move |_| tooltip.clone().into())
3450 .into_any()
3451}
3452
3453fn deploy_blame_entry_context_menu(
3454 blame_entry: &BlameEntry,
3455 editor: View<Editor>,
3456 position: gpui::Point<Pixels>,
3457 cx: &mut WindowContext<'_>,
3458) {
3459 let context_menu = ContextMenu::build(cx, move |this, _| {
3460 let sha = format!("{}", blame_entry.sha);
3461 this.entry("Copy commit SHA", None, move |cx| {
3462 cx.write_to_clipboard(ClipboardItem::new(sha.clone()));
3463 })
3464 });
3465
3466 editor.update(cx, move |editor, cx| {
3467 editor.mouse_context_menu = Some(MouseContextMenu::new(position, context_menu, cx));
3468 cx.notify();
3469 });
3470}
3471
3472#[derive(Debug)]
3473pub(crate) struct LineWithInvisibles {
3474 pub line: ShapedLine,
3475 invisibles: Vec<Invisible>,
3476}
3477
3478impl LineWithInvisibles {
3479 fn from_chunks<'a>(
3480 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
3481 text_style: &TextStyle,
3482 max_line_len: usize,
3483 max_line_count: usize,
3484 line_number_layouts: &[Option<ShapedLine>],
3485 editor_mode: EditorMode,
3486 cx: &WindowContext,
3487 ) -> Vec<Self> {
3488 let mut layouts = Vec::with_capacity(max_line_count);
3489 let mut line = String::new();
3490 let mut invisibles = Vec::new();
3491 let mut styles = Vec::new();
3492 let mut non_whitespace_added = false;
3493 let mut row = 0;
3494 let mut line_exceeded_max_len = false;
3495 let font_size = text_style.font_size.to_pixels(cx.rem_size());
3496
3497 for highlighted_chunk in chunks.chain([HighlightedChunk {
3498 chunk: "\n",
3499 style: None,
3500 is_tab: false,
3501 }]) {
3502 for (ix, mut line_chunk) in highlighted_chunk.chunk.split('\n').enumerate() {
3503 if ix > 0 {
3504 let shaped_line = cx
3505 .text_system()
3506 .shape_line(line.clone().into(), font_size, &styles)
3507 .unwrap();
3508 layouts.push(Self {
3509 line: shaped_line,
3510 invisibles: std::mem::take(&mut invisibles),
3511 });
3512
3513 line.clear();
3514 styles.clear();
3515 row += 1;
3516 line_exceeded_max_len = false;
3517 non_whitespace_added = false;
3518 if row == max_line_count {
3519 return layouts;
3520 }
3521 }
3522
3523 if !line_chunk.is_empty() && !line_exceeded_max_len {
3524 let text_style = if let Some(style) = highlighted_chunk.style {
3525 Cow::Owned(text_style.clone().highlight(style))
3526 } else {
3527 Cow::Borrowed(text_style)
3528 };
3529
3530 if line.len() + line_chunk.len() > max_line_len {
3531 let mut chunk_len = max_line_len - line.len();
3532 while !line_chunk.is_char_boundary(chunk_len) {
3533 chunk_len -= 1;
3534 }
3535 line_chunk = &line_chunk[..chunk_len];
3536 line_exceeded_max_len = true;
3537 }
3538
3539 styles.push(TextRun {
3540 len: line_chunk.len(),
3541 font: text_style.font(),
3542 color: text_style.color,
3543 background_color: text_style.background_color,
3544 underline: text_style.underline,
3545 strikethrough: text_style.strikethrough,
3546 });
3547
3548 if editor_mode == EditorMode::Full {
3549 // Line wrap pads its contents with fake whitespaces,
3550 // avoid printing them
3551 let inside_wrapped_string = line_number_layouts
3552 .get(row)
3553 .and_then(|layout| layout.as_ref())
3554 .is_none();
3555 if highlighted_chunk.is_tab {
3556 if non_whitespace_added || !inside_wrapped_string {
3557 invisibles.push(Invisible::Tab {
3558 line_start_offset: line.len(),
3559 });
3560 }
3561 } else {
3562 invisibles.extend(
3563 line_chunk
3564 .chars()
3565 .enumerate()
3566 .filter(|(_, line_char)| {
3567 let is_whitespace = line_char.is_whitespace();
3568 non_whitespace_added |= !is_whitespace;
3569 is_whitespace
3570 && (non_whitespace_added || !inside_wrapped_string)
3571 })
3572 .map(|(whitespace_index, _)| Invisible::Whitespace {
3573 line_offset: line.len() + whitespace_index,
3574 }),
3575 )
3576 }
3577 }
3578
3579 line.push_str(line_chunk);
3580 }
3581 }
3582 }
3583
3584 layouts
3585 }
3586
3587 fn draw(
3588 &self,
3589 layout: &EditorLayout,
3590 row: DisplayRow,
3591 content_origin: gpui::Point<Pixels>,
3592 whitespace_setting: ShowWhitespaceSetting,
3593 selection_ranges: &[Range<DisplayPoint>],
3594 cx: &mut WindowContext,
3595 ) {
3596 let line_height = layout.position_map.line_height;
3597 let line_y = line_height
3598 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
3599
3600 let line_origin =
3601 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
3602 self.line.paint(line_origin, line_height, cx).log_err();
3603
3604 self.draw_invisibles(
3605 &selection_ranges,
3606 layout,
3607 content_origin,
3608 line_y,
3609 row,
3610 line_height,
3611 whitespace_setting,
3612 cx,
3613 );
3614 }
3615
3616 #[allow(clippy::too_many_arguments)]
3617 fn draw_invisibles(
3618 &self,
3619 selection_ranges: &[Range<DisplayPoint>],
3620 layout: &EditorLayout,
3621 content_origin: gpui::Point<Pixels>,
3622 line_y: Pixels,
3623 row: DisplayRow,
3624 line_height: Pixels,
3625 whitespace_setting: ShowWhitespaceSetting,
3626 cx: &mut WindowContext,
3627 ) {
3628 let allowed_invisibles_regions = match whitespace_setting {
3629 ShowWhitespaceSetting::None => return,
3630 ShowWhitespaceSetting::Selection => Some(selection_ranges),
3631 ShowWhitespaceSetting::All => None,
3632 };
3633
3634 for invisible in &self.invisibles {
3635 let (&token_offset, invisible_symbol) = match invisible {
3636 Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
3637 Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
3638 };
3639
3640 let x_offset = self.line.x_for_index(token_offset);
3641 let invisible_offset =
3642 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
3643 let origin = content_origin
3644 + gpui::point(
3645 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
3646 line_y,
3647 );
3648
3649 if let Some(allowed_regions) = allowed_invisibles_regions {
3650 let invisible_point = DisplayPoint::new(row, token_offset as u32);
3651 if !allowed_regions
3652 .iter()
3653 .any(|region| region.start <= invisible_point && invisible_point < region.end)
3654 {
3655 continue;
3656 }
3657 }
3658 invisible_symbol.paint(origin, line_height, cx).log_err();
3659 }
3660 }
3661}
3662
3663#[derive(Debug, Clone, Copy, PartialEq, Eq)]
3664enum Invisible {
3665 Tab { line_start_offset: usize },
3666 Whitespace { line_offset: usize },
3667}
3668
3669impl Element for EditorElement {
3670 type RequestLayoutState = ();
3671 type PrepaintState = EditorLayout;
3672
3673 fn id(&self) -> Option<ElementId> {
3674 None
3675 }
3676
3677 fn request_layout(
3678 &mut self,
3679 _: Option<&GlobalElementId>,
3680 cx: &mut WindowContext,
3681 ) -> (gpui::LayoutId, ()) {
3682 self.editor.update(cx, |editor, cx| {
3683 editor.set_style(self.style.clone(), cx);
3684
3685 let layout_id = match editor.mode {
3686 EditorMode::SingleLine => {
3687 let rem_size = cx.rem_size();
3688 let mut style = Style::default();
3689 style.size.width = relative(1.).into();
3690 style.size.height = self.style.text.line_height_in_pixels(rem_size).into();
3691 cx.request_layout(style, None)
3692 }
3693 EditorMode::AutoHeight { max_lines } => {
3694 let editor_handle = cx.view().clone();
3695 let max_line_number_width =
3696 self.max_line_number_width(&editor.snapshot(cx), cx);
3697 cx.request_measured_layout(
3698 Style::default(),
3699 move |known_dimensions, available_space, cx| {
3700 editor_handle
3701 .update(cx, |editor, cx| {
3702 compute_auto_height_layout(
3703 editor,
3704 max_lines,
3705 max_line_number_width,
3706 known_dimensions,
3707 available_space.width,
3708 cx,
3709 )
3710 })
3711 .unwrap_or_default()
3712 },
3713 )
3714 }
3715 EditorMode::Full => {
3716 let mut style = Style::default();
3717 style.size.width = relative(1.).into();
3718 style.size.height = relative(1.).into();
3719 cx.request_layout(style, None)
3720 }
3721 };
3722
3723 (layout_id, ())
3724 })
3725 }
3726
3727 fn prepaint(
3728 &mut self,
3729 _: Option<&GlobalElementId>,
3730 bounds: Bounds<Pixels>,
3731 _: &mut Self::RequestLayoutState,
3732 cx: &mut WindowContext,
3733 ) -> Self::PrepaintState {
3734 let text_style = TextStyleRefinement {
3735 font_size: Some(self.style.text.font_size),
3736 line_height: Some(self.style.text.line_height),
3737 ..Default::default()
3738 };
3739 cx.set_view_id(self.editor.entity_id());
3740 cx.with_text_style(Some(text_style), |cx| {
3741 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
3742 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
3743 let style = self.style.clone();
3744
3745 let font_id = cx.text_system().resolve_font(&style.text.font());
3746 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3747 let line_height = style.text.line_height_in_pixels(cx.rem_size());
3748 let em_width = cx
3749 .text_system()
3750 .typographic_bounds(font_id, font_size, 'm')
3751 .unwrap()
3752 .size
3753 .width;
3754 let em_advance = cx
3755 .text_system()
3756 .advance(font_id, font_size, 'm')
3757 .unwrap()
3758 .width;
3759
3760 let gutter_dimensions = snapshot.gutter_dimensions(
3761 font_id,
3762 font_size,
3763 em_width,
3764 self.max_line_number_width(&snapshot, cx),
3765 cx,
3766 );
3767 let text_width = bounds.size.width - gutter_dimensions.width;
3768
3769 let right_margin = if snapshot.mode == EditorMode::Full {
3770 EditorElement::SCROLLBAR_WIDTH
3771 } else {
3772 px(0.)
3773 };
3774 let overscroll = size(em_width + right_margin, px(0.));
3775
3776 snapshot = self.editor.update(cx, |editor, cx| {
3777 editor.last_bounds = Some(bounds);
3778 editor.gutter_dimensions = gutter_dimensions;
3779 editor.set_visible_line_count(bounds.size.height / line_height, cx);
3780
3781 let editor_width =
3782 text_width - gutter_dimensions.margin - overscroll.width - em_width;
3783 let wrap_width = match editor.soft_wrap_mode(cx) {
3784 SoftWrap::None => None,
3785 SoftWrap::PreferLine => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
3786 SoftWrap::EditorWidth => Some(editor_width),
3787 SoftWrap::Column(column) => {
3788 Some(editor_width.min(column as f32 * em_advance))
3789 }
3790 };
3791
3792 if editor.set_wrap_width(wrap_width, cx) {
3793 editor.snapshot(cx)
3794 } else {
3795 snapshot
3796 }
3797 });
3798
3799 let wrap_guides = self
3800 .editor
3801 .read(cx)
3802 .wrap_guides(cx)
3803 .iter()
3804 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
3805 .collect::<SmallVec<[_; 2]>>();
3806
3807 let hitbox = cx.insert_hitbox(bounds, false);
3808 let gutter_hitbox = cx.insert_hitbox(
3809 Bounds {
3810 origin: bounds.origin,
3811 size: size(gutter_dimensions.width, bounds.size.height),
3812 },
3813 false,
3814 );
3815 let text_hitbox = cx.insert_hitbox(
3816 Bounds {
3817 origin: gutter_hitbox.upper_right(),
3818 size: size(text_width, bounds.size.height),
3819 },
3820 false,
3821 );
3822 // Offset the content_bounds from the text_bounds by the gutter margin (which
3823 // is roughly half a character wide) to make hit testing work more like how we want.
3824 let content_origin =
3825 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
3826
3827 let mut autoscroll_containing_element = false;
3828 let mut autoscroll_horizontally = false;
3829 self.editor.update(cx, |editor, cx| {
3830 autoscroll_containing_element =
3831 editor.autoscroll_requested() || editor.has_pending_selection();
3832 autoscroll_horizontally = editor.autoscroll_vertically(bounds, line_height, cx);
3833 snapshot = editor.snapshot(cx);
3834 });
3835
3836 let mut scroll_position = snapshot.scroll_position();
3837 // The scroll position is a fractional point, the whole number of which represents
3838 // the top of the window in terms of display rows.
3839 let start_row = DisplayRow(scroll_position.y as u32);
3840 let height_in_lines = bounds.size.height / line_height;
3841 let max_row = snapshot.max_point().row();
3842 let end_row = cmp::min(
3843 (scroll_position.y + height_in_lines).ceil() as u32,
3844 max_row.next_row().0,
3845 );
3846 let end_row = DisplayRow(end_row);
3847
3848 let buffer_rows = snapshot
3849 .display_rows(start_row)
3850 .take((start_row..end_row).len());
3851
3852 let start_anchor = if start_row == Default::default() {
3853 Anchor::min()
3854 } else {
3855 snapshot.buffer_snapshot.anchor_before(
3856 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
3857 )
3858 };
3859 let end_anchor = if end_row > max_row {
3860 Anchor::max()
3861 } else {
3862 snapshot.buffer_snapshot.anchor_before(
3863 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
3864 )
3865 };
3866
3867 let highlighted_rows = self.editor.update(cx, |editor, cx| {
3868 editor.highlighted_display_rows(HashSet::default(), cx)
3869 });
3870 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
3871 start_anchor..end_anchor,
3872 &snapshot.display_snapshot,
3873 cx.theme().colors(),
3874 );
3875
3876 let redacted_ranges = self.editor.read(cx).redacted_ranges(
3877 start_anchor..end_anchor,
3878 &snapshot.display_snapshot,
3879 cx,
3880 );
3881
3882 let (selections, active_rows, newest_selection_head) = self.layout_selections(
3883 start_anchor,
3884 end_anchor,
3885 &snapshot,
3886 start_row,
3887 end_row,
3888 cx,
3889 );
3890
3891 let (line_numbers, fold_statuses) = self.layout_line_numbers(
3892 start_row..end_row,
3893 buffer_rows.clone(),
3894 &active_rows,
3895 newest_selection_head,
3896 &snapshot,
3897 cx,
3898 );
3899
3900 let display_hunks = self.layout_git_gutters(
3901 line_height,
3902 &gutter_hitbox,
3903 start_row..end_row,
3904 &snapshot,
3905 cx,
3906 );
3907
3908 let mut max_visible_line_width = Pixels::ZERO;
3909 let line_layouts =
3910 self.layout_lines(start_row..end_row, &line_numbers, &snapshot, cx);
3911 for line_with_invisibles in &line_layouts {
3912 if line_with_invisibles.line.width > max_visible_line_width {
3913 max_visible_line_width = line_with_invisibles.line.width;
3914 }
3915 }
3916
3917 let longest_line_width = layout_line(snapshot.longest_row(), &snapshot, &style, cx)
3918 .unwrap()
3919 .width;
3920 let mut scroll_width =
3921 longest_line_width.max(max_visible_line_width) + overscroll.width;
3922
3923 let mut blocks = cx.with_element_namespace("blocks", |cx| {
3924 self.build_blocks(
3925 start_row..end_row,
3926 &snapshot,
3927 &hitbox,
3928 &text_hitbox,
3929 &mut scroll_width,
3930 &gutter_dimensions,
3931 em_width,
3932 gutter_dimensions.width + gutter_dimensions.margin,
3933 line_height,
3934 &line_layouts,
3935 cx,
3936 )
3937 });
3938
3939 let scroll_pixel_position = point(
3940 scroll_position.x * em_width,
3941 scroll_position.y * line_height,
3942 );
3943
3944 let mut inline_blame = None;
3945 if let Some(newest_selection_head) = newest_selection_head {
3946 let display_row = newest_selection_head.row();
3947 if (start_row..end_row).contains(&display_row) {
3948 let line_layout = &line_layouts[display_row.minus(start_row) as usize];
3949 inline_blame = self.layout_inline_blame(
3950 display_row,
3951 &snapshot.display_snapshot,
3952 line_layout,
3953 em_width,
3954 content_origin,
3955 scroll_pixel_position,
3956 line_height,
3957 cx,
3958 );
3959 }
3960 }
3961
3962 let blamed_display_rows = self.layout_blame_entries(
3963 buffer_rows.map(|display_row| {
3964 display_row.map(|row| {
3965 MultiBufferRow(DisplayPoint::new(row, 0).to_point(&snapshot).row)
3966 })
3967 }),
3968 em_width,
3969 scroll_position,
3970 line_height,
3971 &gutter_hitbox,
3972 gutter_dimensions.git_blame_entries_width,
3973 cx,
3974 );
3975
3976 let scroll_max = point(
3977 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
3978 max_row.as_f32(),
3979 );
3980
3981 self.editor.update(cx, |editor, cx| {
3982 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
3983
3984 let autoscrolled = if autoscroll_horizontally {
3985 editor.autoscroll_horizontally(
3986 start_row,
3987 text_hitbox.size.width,
3988 scroll_width,
3989 em_width,
3990 &line_layouts,
3991 cx,
3992 )
3993 } else {
3994 false
3995 };
3996
3997 if clamped || autoscrolled {
3998 snapshot = editor.snapshot(cx);
3999 scroll_position = snapshot.scroll_position();
4000 }
4001 });
4002
4003 cx.with_element_namespace("blocks", |cx| {
4004 self.layout_blocks(
4005 &mut blocks,
4006 &hitbox,
4007 line_height,
4008 scroll_pixel_position,
4009 cx,
4010 );
4011 });
4012
4013 let cursors = self.collect_cursors(&snapshot, cx);
4014 let visible_row_range = start_row..end_row;
4015 let non_visible_cursors = cursors
4016 .iter()
4017 .any(move |c| !visible_row_range.contains(&c.0.row()));
4018
4019 let visible_cursors = self.layout_visible_cursors(
4020 &snapshot,
4021 &selections,
4022 start_row..end_row,
4023 &line_layouts,
4024 &text_hitbox,
4025 content_origin,
4026 scroll_position,
4027 scroll_pixel_position,
4028 line_height,
4029 em_width,
4030 autoscroll_containing_element,
4031 cx,
4032 );
4033
4034 let scrollbar_layout = self.layout_scrollbar(
4035 &snapshot,
4036 bounds,
4037 scroll_position,
4038 height_in_lines,
4039 non_visible_cursors,
4040 cx,
4041 );
4042
4043 let folds = cx.with_element_namespace("folds", |cx| {
4044 self.layout_folds(
4045 &snapshot,
4046 content_origin,
4047 start_anchor..end_anchor,
4048 start_row..end_row,
4049 scroll_pixel_position,
4050 line_height,
4051 &line_layouts,
4052 cx,
4053 )
4054 });
4055
4056 let gutter_settings = EditorSettings::get_global(cx).gutter;
4057
4058 let mut context_menu_visible = false;
4059 let mut code_actions_indicator = None;
4060 if let Some(newest_selection_head) = newest_selection_head {
4061 if (start_row..end_row).contains(&newest_selection_head.row()) {
4062 context_menu_visible = self.layout_context_menu(
4063 line_height,
4064 &hitbox,
4065 &text_hitbox,
4066 content_origin,
4067 start_row,
4068 scroll_pixel_position,
4069 &line_layouts,
4070 newest_selection_head,
4071 gutter_dimensions.width - gutter_dimensions.left_padding,
4072 cx,
4073 );
4074 if gutter_settings.code_actions {
4075 let newest_selection_point =
4076 newest_selection_head.to_point(&snapshot.display_snapshot);
4077 let buffer = snapshot
4078 .buffer_snapshot
4079 .buffer_line_for_row(MultiBufferRow(newest_selection_point.row));
4080 if let Some((buffer, range)) = buffer {
4081 let buffer_id = buffer.remote_id();
4082 let row = range.start.row;
4083 let has_test_indicator =
4084 self.editor.read(cx).tasks.contains_key(&(buffer_id, row));
4085
4086 if !has_test_indicator {
4087 code_actions_indicator = self.layout_code_actions_indicator(
4088 line_height,
4089 newest_selection_head,
4090 scroll_pixel_position,
4091 &gutter_dimensions,
4092 &gutter_hitbox,
4093 cx,
4094 );
4095 }
4096 }
4097 }
4098 }
4099 }
4100
4101 let test_indicators = self.layout_run_indicators(
4102 line_height,
4103 scroll_pixel_position,
4104 &gutter_dimensions,
4105 &gutter_hitbox,
4106 &snapshot,
4107 cx,
4108 );
4109
4110 if !context_menu_visible && !cx.has_active_drag() {
4111 self.layout_hover_popovers(
4112 &snapshot,
4113 &hitbox,
4114 &text_hitbox,
4115 start_row..end_row,
4116 content_origin,
4117 scroll_pixel_position,
4118 &line_layouts,
4119 line_height,
4120 em_width,
4121 cx,
4122 );
4123 }
4124
4125 let mouse_context_menu = self.layout_mouse_context_menu(cx);
4126
4127 let fold_indicators = if gutter_settings.folds {
4128 cx.with_element_namespace("gutter_fold_indicators", |cx| {
4129 self.layout_gutter_fold_indicators(
4130 fold_statuses,
4131 line_height,
4132 &gutter_dimensions,
4133 gutter_settings,
4134 scroll_pixel_position,
4135 &gutter_hitbox,
4136 cx,
4137 )
4138 })
4139 } else {
4140 Vec::new()
4141 };
4142
4143 let invisible_symbol_font_size = font_size / 2.;
4144 let tab_invisible = cx
4145 .text_system()
4146 .shape_line(
4147 "→".into(),
4148 invisible_symbol_font_size,
4149 &[TextRun {
4150 len: "→".len(),
4151 font: self.style.text.font(),
4152 color: cx.theme().colors().editor_invisible,
4153 background_color: None,
4154 underline: None,
4155 strikethrough: None,
4156 }],
4157 )
4158 .unwrap();
4159 let space_invisible = cx
4160 .text_system()
4161 .shape_line(
4162 "•".into(),
4163 invisible_symbol_font_size,
4164 &[TextRun {
4165 len: "•".len(),
4166 font: self.style.text.font(),
4167 color: cx.theme().colors().editor_invisible,
4168 background_color: None,
4169 underline: None,
4170 strikethrough: None,
4171 }],
4172 )
4173 .unwrap();
4174
4175 EditorLayout {
4176 mode: snapshot.mode,
4177 position_map: Arc::new(PositionMap {
4178 size: bounds.size,
4179 scroll_pixel_position,
4180 scroll_max,
4181 line_layouts,
4182 line_height,
4183 em_width,
4184 em_advance,
4185 snapshot,
4186 }),
4187 visible_display_row_range: start_row..end_row,
4188 wrap_guides,
4189 hitbox,
4190 text_hitbox,
4191 gutter_hitbox,
4192 gutter_dimensions,
4193 content_origin,
4194 scrollbar_layout,
4195 active_rows,
4196 highlighted_rows,
4197 highlighted_ranges,
4198 redacted_ranges,
4199 line_numbers,
4200 display_hunks,
4201 blamed_display_rows,
4202 inline_blame,
4203 folds,
4204 blocks,
4205 cursors,
4206 visible_cursors,
4207 selections,
4208 mouse_context_menu,
4209 test_indicators,
4210 code_actions_indicator,
4211 fold_indicators,
4212 tab_invisible,
4213 space_invisible,
4214 }
4215 })
4216 })
4217 }
4218
4219 fn paint(
4220 &mut self,
4221 _: Option<&GlobalElementId>,
4222 bounds: Bounds<gpui::Pixels>,
4223 _: &mut Self::RequestLayoutState,
4224 layout: &mut Self::PrepaintState,
4225 cx: &mut WindowContext,
4226 ) {
4227 let focus_handle = self.editor.focus_handle(cx);
4228 let key_context = self.editor.read(cx).key_context(cx);
4229 cx.set_focus_handle(&focus_handle);
4230 cx.set_key_context(key_context);
4231 cx.handle_input(
4232 &focus_handle,
4233 ElementInputHandler::new(bounds, self.editor.clone()),
4234 );
4235 self.register_actions(cx);
4236 self.register_key_listeners(cx, layout);
4237
4238 let text_style = TextStyleRefinement {
4239 font_size: Some(self.style.text.font_size),
4240 line_height: Some(self.style.text.line_height),
4241 ..Default::default()
4242 };
4243 let mouse_position = cx.mouse_position();
4244 let hovered_hunk = layout
4245 .display_hunks
4246 .iter()
4247 .find_map(|(hunk, hunk_hitbox)| match hunk {
4248 DisplayDiffHunk::Folded { .. } => None,
4249 DisplayDiffHunk::Unfolded {
4250 diff_base_byte_range,
4251 multi_buffer_range,
4252 status,
4253 ..
4254 } => {
4255 if hunk_hitbox
4256 .as_ref()
4257 .map(|hitbox| hitbox.contains(&mouse_position))
4258 .unwrap_or(false)
4259 {
4260 Some(HunkToExpand {
4261 status: *status,
4262 multi_buffer_range: multi_buffer_range.clone(),
4263 diff_base_byte_range: diff_base_byte_range.clone(),
4264 })
4265 } else {
4266 None
4267 }
4268 }
4269 });
4270 cx.with_text_style(Some(text_style), |cx| {
4271 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
4272 self.paint_mouse_listeners(layout, hovered_hunk, cx);
4273 self.paint_background(layout, cx);
4274 if layout.gutter_hitbox.size.width > Pixels::ZERO {
4275 self.paint_gutter(layout, cx)
4276 }
4277
4278 self.paint_text(layout, cx);
4279
4280 if !layout.blocks.is_empty() {
4281 cx.with_element_namespace("blocks", |cx| {
4282 self.paint_blocks(layout, cx);
4283 });
4284 }
4285
4286 self.paint_scrollbar(layout, cx);
4287 self.paint_mouse_context_menu(layout, cx);
4288 });
4289 })
4290 }
4291}
4292
4293impl IntoElement for EditorElement {
4294 type Element = Self;
4295
4296 fn into_element(self) -> Self::Element {
4297 self
4298 }
4299}
4300
4301pub struct EditorLayout {
4302 position_map: Arc<PositionMap>,
4303 hitbox: Hitbox,
4304 text_hitbox: Hitbox,
4305 gutter_hitbox: Hitbox,
4306 gutter_dimensions: GutterDimensions,
4307 content_origin: gpui::Point<Pixels>,
4308 scrollbar_layout: Option<ScrollbarLayout>,
4309 mode: EditorMode,
4310 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
4311 visible_display_row_range: Range<DisplayRow>,
4312 active_rows: BTreeMap<DisplayRow, bool>,
4313 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
4314 line_numbers: Vec<Option<ShapedLine>>,
4315 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
4316 blamed_display_rows: Option<Vec<AnyElement>>,
4317 inline_blame: Option<AnyElement>,
4318 folds: Vec<FoldLayout>,
4319 blocks: Vec<BlockLayout>,
4320 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
4321 redacted_ranges: Vec<Range<DisplayPoint>>,
4322 cursors: Vec<(DisplayPoint, Hsla)>,
4323 visible_cursors: Vec<CursorLayout>,
4324 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
4325 code_actions_indicator: Option<AnyElement>,
4326 test_indicators: Vec<AnyElement>,
4327 fold_indicators: Vec<Option<AnyElement>>,
4328 mouse_context_menu: Option<AnyElement>,
4329 tab_invisible: ShapedLine,
4330 space_invisible: ShapedLine,
4331}
4332
4333impl EditorLayout {
4334 fn line_end_overshoot(&self) -> Pixels {
4335 0.15 * self.position_map.line_height
4336 }
4337}
4338
4339struct ColoredRange<T> {
4340 start: T,
4341 end: T,
4342 color: Hsla,
4343}
4344
4345#[derive(Clone)]
4346struct ScrollbarLayout {
4347 hitbox: Hitbox,
4348 visible_row_range: Range<f32>,
4349 visible: bool,
4350 row_height: Pixels,
4351 thumb_height: Pixels,
4352}
4353
4354impl ScrollbarLayout {
4355 const BORDER_WIDTH: Pixels = px(1.0);
4356 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
4357 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
4358 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
4359
4360 fn thumb_bounds(&self) -> Bounds<Pixels> {
4361 let thumb_top = self.y_for_row(self.visible_row_range.start);
4362 let thumb_bottom = thumb_top + self.thumb_height;
4363 Bounds::from_corners(
4364 point(self.hitbox.left(), thumb_top),
4365 point(self.hitbox.right(), thumb_bottom),
4366 )
4367 }
4368
4369 fn y_for_row(&self, row: f32) -> Pixels {
4370 self.hitbox.top() + row * self.row_height
4371 }
4372
4373 fn marker_quads_for_ranges(
4374 &self,
4375 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
4376 column: Option<usize>,
4377 ) -> Vec<PaintQuad> {
4378 struct MinMax {
4379 min: Pixels,
4380 max: Pixels,
4381 }
4382 let (x_range, height_limit) = if let Some(column) = column {
4383 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
4384 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
4385 let end = start + column_width;
4386 (
4387 Range { start, end },
4388 MinMax {
4389 min: Self::MIN_MARKER_HEIGHT,
4390 max: px(f32::MAX),
4391 },
4392 )
4393 } else {
4394 (
4395 Range {
4396 start: Self::BORDER_WIDTH,
4397 end: self.hitbox.size.width,
4398 },
4399 MinMax {
4400 min: Self::LINE_MARKER_HEIGHT,
4401 max: Self::LINE_MARKER_HEIGHT,
4402 },
4403 )
4404 };
4405
4406 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
4407 let mut pixel_ranges = row_ranges
4408 .into_iter()
4409 .map(|range| {
4410 let start_y = row_to_y(range.start);
4411 let end_y = row_to_y(range.end)
4412 + self.row_height.max(height_limit.min).min(height_limit.max);
4413 ColoredRange {
4414 start: start_y,
4415 end: end_y,
4416 color: range.color,
4417 }
4418 })
4419 .peekable();
4420
4421 let mut quads = Vec::new();
4422 while let Some(mut pixel_range) = pixel_ranges.next() {
4423 while let Some(next_pixel_range) = pixel_ranges.peek() {
4424 if pixel_range.end >= next_pixel_range.start - px(1.0)
4425 && pixel_range.color == next_pixel_range.color
4426 {
4427 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
4428 pixel_ranges.next();
4429 } else {
4430 break;
4431 }
4432 }
4433
4434 let bounds = Bounds::from_corners(
4435 point(x_range.start, pixel_range.start),
4436 point(x_range.end, pixel_range.end),
4437 );
4438 quads.push(quad(
4439 bounds,
4440 Corners::default(),
4441 pixel_range.color,
4442 Edges::default(),
4443 Hsla::transparent_black(),
4444 ));
4445 }
4446
4447 quads
4448 }
4449}
4450
4451struct FoldLayout {
4452 display_range: Range<DisplayPoint>,
4453 hover_element: AnyElement,
4454}
4455
4456struct PositionMap {
4457 size: Size<Pixels>,
4458 line_height: Pixels,
4459 scroll_pixel_position: gpui::Point<Pixels>,
4460 scroll_max: gpui::Point<f32>,
4461 em_width: Pixels,
4462 em_advance: Pixels,
4463 line_layouts: Vec<LineWithInvisibles>,
4464 snapshot: EditorSnapshot,
4465}
4466
4467#[derive(Debug, Copy, Clone)]
4468pub struct PointForPosition {
4469 pub previous_valid: DisplayPoint,
4470 pub next_valid: DisplayPoint,
4471 pub exact_unclipped: DisplayPoint,
4472 pub column_overshoot_after_line_end: u32,
4473}
4474
4475impl PointForPosition {
4476 pub fn as_valid(&self) -> Option<DisplayPoint> {
4477 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
4478 Some(self.previous_valid)
4479 } else {
4480 None
4481 }
4482 }
4483}
4484
4485impl PositionMap {
4486 fn point_for_position(
4487 &self,
4488 text_bounds: Bounds<Pixels>,
4489 position: gpui::Point<Pixels>,
4490 ) -> PointForPosition {
4491 let scroll_position = self.snapshot.scroll_position();
4492 let position = position - text_bounds.origin;
4493 let y = position.y.max(px(0.)).min(self.size.height);
4494 let x = position.x + (scroll_position.x * self.em_width);
4495 let row = ((y / self.line_height) + scroll_position.y) as u32;
4496
4497 let (column, x_overshoot_after_line_end) = if let Some(line) = self
4498 .line_layouts
4499 .get(row as usize - scroll_position.y as usize)
4500 .map(|LineWithInvisibles { line, .. }| line)
4501 {
4502 if let Some(ix) = line.index_for_x(x) {
4503 (ix as u32, px(0.))
4504 } else {
4505 (line.len as u32, px(0.).max(x - line.width))
4506 }
4507 } else {
4508 (0, x)
4509 };
4510
4511 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
4512 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
4513 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
4514
4515 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
4516 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
4517 PointForPosition {
4518 previous_valid,
4519 next_valid,
4520 exact_unclipped,
4521 column_overshoot_after_line_end,
4522 }
4523 }
4524}
4525
4526struct BlockLayout {
4527 row: DisplayRow,
4528 element: AnyElement,
4529 available_space: Size<AvailableSpace>,
4530 style: BlockStyle,
4531}
4532
4533fn layout_line(
4534 row: DisplayRow,
4535 snapshot: &EditorSnapshot,
4536 style: &EditorStyle,
4537 cx: &WindowContext,
4538) -> Result<ShapedLine> {
4539 let mut line = snapshot.line(row);
4540
4541 let len = {
4542 let line_len = line.len();
4543 if line_len > MAX_LINE_LEN {
4544 let mut len = MAX_LINE_LEN;
4545 while !line.is_char_boundary(len) {
4546 len -= 1;
4547 }
4548
4549 line.truncate(len);
4550 len
4551 } else {
4552 line_len
4553 }
4554 };
4555
4556 cx.text_system().shape_line(
4557 line.into(),
4558 style.text.font_size.to_pixels(cx.rem_size()),
4559 &[TextRun {
4560 len,
4561 font: style.text.font(),
4562 color: Hsla::default(),
4563 background_color: None,
4564 underline: None,
4565 strikethrough: None,
4566 }],
4567 )
4568}
4569
4570pub struct CursorLayout {
4571 origin: gpui::Point<Pixels>,
4572 block_width: Pixels,
4573 line_height: Pixels,
4574 color: Hsla,
4575 shape: CursorShape,
4576 block_text: Option<ShapedLine>,
4577 cursor_name: Option<AnyElement>,
4578}
4579
4580#[derive(Debug)]
4581pub struct CursorName {
4582 string: SharedString,
4583 color: Hsla,
4584 is_top_row: bool,
4585}
4586
4587impl CursorLayout {
4588 pub fn new(
4589 origin: gpui::Point<Pixels>,
4590 block_width: Pixels,
4591 line_height: Pixels,
4592 color: Hsla,
4593 shape: CursorShape,
4594 block_text: Option<ShapedLine>,
4595 ) -> CursorLayout {
4596 CursorLayout {
4597 origin,
4598 block_width,
4599 line_height,
4600 color,
4601 shape,
4602 block_text,
4603 cursor_name: None,
4604 }
4605 }
4606
4607 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4608 Bounds {
4609 origin: self.origin + origin,
4610 size: size(self.block_width, self.line_height),
4611 }
4612 }
4613
4614 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4615 match self.shape {
4616 CursorShape::Bar => Bounds {
4617 origin: self.origin + origin,
4618 size: size(px(2.0), self.line_height),
4619 },
4620 CursorShape::Block | CursorShape::Hollow => Bounds {
4621 origin: self.origin + origin,
4622 size: size(self.block_width, self.line_height),
4623 },
4624 CursorShape::Underscore => Bounds {
4625 origin: self.origin
4626 + origin
4627 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
4628 size: size(self.block_width, px(2.0)),
4629 },
4630 }
4631 }
4632
4633 pub fn layout(
4634 &mut self,
4635 origin: gpui::Point<Pixels>,
4636 cursor_name: Option<CursorName>,
4637 cx: &mut WindowContext,
4638 ) {
4639 if let Some(cursor_name) = cursor_name {
4640 let bounds = self.bounds(origin);
4641 let text_size = self.line_height / 1.5;
4642
4643 let name_origin = if cursor_name.is_top_row {
4644 point(bounds.right() - px(1.), bounds.top())
4645 } else {
4646 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
4647 };
4648 let mut name_element = div()
4649 .bg(self.color)
4650 .text_size(text_size)
4651 .px_0p5()
4652 .line_height(text_size + px(2.))
4653 .text_color(cursor_name.color)
4654 .child(cursor_name.string.clone())
4655 .into_any_element();
4656
4657 name_element.prepaint_as_root(
4658 name_origin,
4659 size(AvailableSpace::MinContent, AvailableSpace::MinContent),
4660 cx,
4661 );
4662
4663 self.cursor_name = Some(name_element);
4664 }
4665 }
4666
4667 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
4668 let bounds = self.bounds(origin);
4669
4670 //Draw background or border quad
4671 let cursor = if matches!(self.shape, CursorShape::Hollow) {
4672 outline(bounds, self.color)
4673 } else {
4674 fill(bounds, self.color)
4675 };
4676
4677 if let Some(name) = &mut self.cursor_name {
4678 name.paint(cx);
4679 }
4680
4681 cx.paint_quad(cursor);
4682
4683 if let Some(block_text) = &self.block_text {
4684 block_text
4685 .paint(self.origin + origin, self.line_height, cx)
4686 .log_err();
4687 }
4688 }
4689
4690 pub fn shape(&self) -> CursorShape {
4691 self.shape
4692 }
4693}
4694
4695#[derive(Debug)]
4696pub struct HighlightedRange {
4697 pub start_y: Pixels,
4698 pub line_height: Pixels,
4699 pub lines: Vec<HighlightedRangeLine>,
4700 pub color: Hsla,
4701 pub corner_radius: Pixels,
4702}
4703
4704#[derive(Debug)]
4705pub struct HighlightedRangeLine {
4706 pub start_x: Pixels,
4707 pub end_x: Pixels,
4708}
4709
4710impl HighlightedRange {
4711 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
4712 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
4713 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
4714 self.paint_lines(
4715 self.start_y + self.line_height,
4716 &self.lines[1..],
4717 bounds,
4718 cx,
4719 );
4720 } else {
4721 self.paint_lines(self.start_y, &self.lines, bounds, cx);
4722 }
4723 }
4724
4725 fn paint_lines(
4726 &self,
4727 start_y: Pixels,
4728 lines: &[HighlightedRangeLine],
4729 _bounds: Bounds<Pixels>,
4730 cx: &mut WindowContext,
4731 ) {
4732 if lines.is_empty() {
4733 return;
4734 }
4735
4736 let first_line = lines.first().unwrap();
4737 let last_line = lines.last().unwrap();
4738
4739 let first_top_left = point(first_line.start_x, start_y);
4740 let first_top_right = point(first_line.end_x, start_y);
4741
4742 let curve_height = point(Pixels::ZERO, self.corner_radius);
4743 let curve_width = |start_x: Pixels, end_x: Pixels| {
4744 let max = (end_x - start_x) / 2.;
4745 let width = if max < self.corner_radius {
4746 max
4747 } else {
4748 self.corner_radius
4749 };
4750
4751 point(width, Pixels::ZERO)
4752 };
4753
4754 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
4755 let mut path = gpui::Path::new(first_top_right - top_curve_width);
4756 path.curve_to(first_top_right + curve_height, first_top_right);
4757
4758 let mut iter = lines.iter().enumerate().peekable();
4759 while let Some((ix, line)) = iter.next() {
4760 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
4761
4762 if let Some((_, next_line)) = iter.peek() {
4763 let next_top_right = point(next_line.end_x, bottom_right.y);
4764
4765 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
4766 Ordering::Equal => {
4767 path.line_to(bottom_right);
4768 }
4769 Ordering::Less => {
4770 let curve_width = curve_width(next_top_right.x, bottom_right.x);
4771 path.line_to(bottom_right - curve_height);
4772 if self.corner_radius > Pixels::ZERO {
4773 path.curve_to(bottom_right - curve_width, bottom_right);
4774 }
4775 path.line_to(next_top_right + curve_width);
4776 if self.corner_radius > Pixels::ZERO {
4777 path.curve_to(next_top_right + curve_height, next_top_right);
4778 }
4779 }
4780 Ordering::Greater => {
4781 let curve_width = curve_width(bottom_right.x, next_top_right.x);
4782 path.line_to(bottom_right - curve_height);
4783 if self.corner_radius > Pixels::ZERO {
4784 path.curve_to(bottom_right + curve_width, bottom_right);
4785 }
4786 path.line_to(next_top_right - curve_width);
4787 if self.corner_radius > Pixels::ZERO {
4788 path.curve_to(next_top_right + curve_height, next_top_right);
4789 }
4790 }
4791 }
4792 } else {
4793 let curve_width = curve_width(line.start_x, line.end_x);
4794 path.line_to(bottom_right - curve_height);
4795 if self.corner_radius > Pixels::ZERO {
4796 path.curve_to(bottom_right - curve_width, bottom_right);
4797 }
4798
4799 let bottom_left = point(line.start_x, bottom_right.y);
4800 path.line_to(bottom_left + curve_width);
4801 if self.corner_radius > Pixels::ZERO {
4802 path.curve_to(bottom_left - curve_height, bottom_left);
4803 }
4804 }
4805 }
4806
4807 if first_line.start_x > last_line.start_x {
4808 let curve_width = curve_width(last_line.start_x, first_line.start_x);
4809 let second_top_left = point(last_line.start_x, start_y + self.line_height);
4810 path.line_to(second_top_left + curve_height);
4811 if self.corner_radius > Pixels::ZERO {
4812 path.curve_to(second_top_left + curve_width, second_top_left);
4813 }
4814 let first_bottom_left = point(first_line.start_x, second_top_left.y);
4815 path.line_to(first_bottom_left - curve_width);
4816 if self.corner_radius > Pixels::ZERO {
4817 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
4818 }
4819 }
4820
4821 path.line_to(first_top_left + curve_height);
4822 if self.corner_radius > Pixels::ZERO {
4823 path.curve_to(first_top_left + top_curve_width, first_top_left);
4824 }
4825 path.line_to(first_top_right - top_curve_width);
4826
4827 cx.paint_path(path, self.color);
4828 }
4829}
4830
4831pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4832 (delta.pow(1.5) / 100.0).into()
4833}
4834
4835fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4836 (delta.pow(1.2) / 300.0).into()
4837}
4838
4839#[cfg(test)]
4840mod tests {
4841 use super::*;
4842 use crate::{
4843 display_map::{BlockDisposition, BlockProperties},
4844 editor_tests::{init_test, update_test_language_settings},
4845 Editor, MultiBuffer,
4846 };
4847 use gpui::{TestAppContext, VisualTestContext};
4848 use language::language_settings;
4849 use log::info;
4850 use std::num::NonZeroU32;
4851 use ui::Context;
4852 use util::test::sample_text;
4853
4854 #[gpui::test]
4855 fn test_shape_line_numbers(cx: &mut TestAppContext) {
4856 init_test(cx, |_| {});
4857 let window = cx.add_window(|cx| {
4858 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
4859 Editor::new(EditorMode::Full, buffer, None, cx)
4860 });
4861
4862 let editor = window.root(cx).unwrap();
4863 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4864 let element = EditorElement::new(&editor, style);
4865 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
4866
4867 let layouts = cx
4868 .update_window(*window, |_, cx| {
4869 element
4870 .layout_line_numbers(
4871 DisplayRow(0)..DisplayRow(6),
4872 (0..6).map(DisplayRow).map(Some),
4873 &Default::default(),
4874 Some(DisplayPoint::new(DisplayRow(0), 0)),
4875 &snapshot,
4876 cx,
4877 )
4878 .0
4879 })
4880 .unwrap();
4881 assert_eq!(layouts.len(), 6);
4882
4883 let relative_rows = window
4884 .update(cx, |editor, cx| {
4885 let snapshot = editor.snapshot(cx);
4886 element.calculate_relative_line_numbers(
4887 &snapshot,
4888 &(DisplayRow(0)..DisplayRow(6)),
4889 Some(DisplayRow(3)),
4890 )
4891 })
4892 .unwrap();
4893 assert_eq!(relative_rows[&DisplayRow(0)], 3);
4894 assert_eq!(relative_rows[&DisplayRow(1)], 2);
4895 assert_eq!(relative_rows[&DisplayRow(2)], 1);
4896 // current line has no relative number
4897 assert_eq!(relative_rows[&DisplayRow(4)], 1);
4898 assert_eq!(relative_rows[&DisplayRow(5)], 2);
4899
4900 // works if cursor is before screen
4901 let relative_rows = window
4902 .update(cx, |editor, cx| {
4903 let snapshot = editor.snapshot(cx);
4904 element.calculate_relative_line_numbers(
4905 &snapshot,
4906 &(DisplayRow(3)..DisplayRow(6)),
4907 Some(DisplayRow(1)),
4908 )
4909 })
4910 .unwrap();
4911 assert_eq!(relative_rows.len(), 3);
4912 assert_eq!(relative_rows[&DisplayRow(3)], 2);
4913 assert_eq!(relative_rows[&DisplayRow(4)], 3);
4914 assert_eq!(relative_rows[&DisplayRow(5)], 4);
4915
4916 // works if cursor is after screen
4917 let relative_rows = window
4918 .update(cx, |editor, cx| {
4919 let snapshot = editor.snapshot(cx);
4920 element.calculate_relative_line_numbers(
4921 &snapshot,
4922 &(DisplayRow(0)..DisplayRow(3)),
4923 Some(DisplayRow(6)),
4924 )
4925 })
4926 .unwrap();
4927 assert_eq!(relative_rows.len(), 3);
4928 assert_eq!(relative_rows[&DisplayRow(0)], 5);
4929 assert_eq!(relative_rows[&DisplayRow(1)], 4);
4930 assert_eq!(relative_rows[&DisplayRow(2)], 3);
4931 }
4932
4933 #[gpui::test]
4934 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
4935 init_test(cx, |_| {});
4936
4937 let window = cx.add_window(|cx| {
4938 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
4939 Editor::new(EditorMode::Full, buffer, None, cx)
4940 });
4941 let cx = &mut VisualTestContext::from_window(*window, cx);
4942 let editor = window.root(cx).unwrap();
4943 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4944
4945 window
4946 .update(cx, |editor, cx| {
4947 editor.cursor_shape = CursorShape::Block;
4948 editor.change_selections(None, cx, |s| {
4949 s.select_ranges([
4950 Point::new(0, 0)..Point::new(1, 0),
4951 Point::new(3, 2)..Point::new(3, 3),
4952 Point::new(5, 6)..Point::new(6, 0),
4953 ]);
4954 });
4955 })
4956 .unwrap();
4957
4958 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
4959 EditorElement::new(&editor, style)
4960 });
4961
4962 assert_eq!(state.selections.len(), 1);
4963 let local_selections = &state.selections[0].1;
4964 assert_eq!(local_selections.len(), 3);
4965 // moves cursor back one line
4966 assert_eq!(
4967 local_selections[0].head,
4968 DisplayPoint::new(DisplayRow(0), 6)
4969 );
4970 assert_eq!(
4971 local_selections[0].range,
4972 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
4973 );
4974
4975 // moves cursor back one column
4976 assert_eq!(
4977 local_selections[1].range,
4978 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
4979 );
4980 assert_eq!(
4981 local_selections[1].head,
4982 DisplayPoint::new(DisplayRow(3), 2)
4983 );
4984
4985 // leaves cursor on the max point
4986 assert_eq!(
4987 local_selections[2].range,
4988 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
4989 );
4990 assert_eq!(
4991 local_selections[2].head,
4992 DisplayPoint::new(DisplayRow(6), 0)
4993 );
4994
4995 // active lines does not include 1 (even though the range of the selection does)
4996 assert_eq!(
4997 state.active_rows.keys().cloned().collect::<Vec<_>>(),
4998 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
4999 );
5000
5001 // multi-buffer support
5002 // in DisplayPoint coordinates, this is what we're dealing with:
5003 // 0: [[file
5004 // 1: header]]
5005 // 2: aaaaaa
5006 // 3: bbbbbb
5007 // 4: cccccc
5008 // 5:
5009 // 6: ...
5010 // 7: ffffff
5011 // 8: gggggg
5012 // 9: hhhhhh
5013 // 10:
5014 // 11: [[file
5015 // 12: header]]
5016 // 13: bbbbbb
5017 // 14: cccccc
5018 // 15: dddddd
5019 let window = cx.add_window(|cx| {
5020 let buffer = MultiBuffer::build_multi(
5021 [
5022 (
5023 &(sample_text(8, 6, 'a') + "\n"),
5024 vec![
5025 Point::new(0, 0)..Point::new(3, 0),
5026 Point::new(4, 0)..Point::new(7, 0),
5027 ],
5028 ),
5029 (
5030 &(sample_text(8, 6, 'a') + "\n"),
5031 vec![Point::new(1, 0)..Point::new(3, 0)],
5032 ),
5033 ],
5034 cx,
5035 );
5036 Editor::new(EditorMode::Full, buffer, None, cx)
5037 });
5038 let editor = window.root(cx).unwrap();
5039 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5040 let _state = window.update(cx, |editor, cx| {
5041 editor.cursor_shape = CursorShape::Block;
5042 editor.change_selections(None, cx, |s| {
5043 s.select_display_ranges([
5044 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
5045 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
5046 ]);
5047 });
5048 });
5049
5050 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5051 EditorElement::new(&editor, style)
5052 });
5053 assert_eq!(state.selections.len(), 1);
5054 let local_selections = &state.selections[0].1;
5055 assert_eq!(local_selections.len(), 2);
5056
5057 // moves cursor on excerpt boundary back a line
5058 // and doesn't allow selection to bleed through
5059 assert_eq!(
5060 local_selections[0].range,
5061 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(6), 0)
5062 );
5063 assert_eq!(
5064 local_selections[0].head,
5065 DisplayPoint::new(DisplayRow(5), 0)
5066 );
5067 // moves cursor on buffer boundary back two lines
5068 // and doesn't allow selection to bleed through
5069 assert_eq!(
5070 local_selections[1].range,
5071 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(11), 0)
5072 );
5073 assert_eq!(
5074 local_selections[1].head,
5075 DisplayPoint::new(DisplayRow(10), 0)
5076 );
5077 }
5078
5079 #[gpui::test]
5080 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
5081 init_test(cx, |_| {});
5082
5083 let window = cx.add_window(|cx| {
5084 let buffer = MultiBuffer::build_simple("", cx);
5085 Editor::new(EditorMode::Full, buffer, None, cx)
5086 });
5087 let cx = &mut VisualTestContext::from_window(*window, cx);
5088 let editor = window.root(cx).unwrap();
5089 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5090 window
5091 .update(cx, |editor, cx| {
5092 editor.set_placeholder_text("hello", cx);
5093 editor.insert_blocks(
5094 [BlockProperties {
5095 style: BlockStyle::Fixed,
5096 disposition: BlockDisposition::Above,
5097 height: 3,
5098 position: Anchor::min(),
5099 render: Box::new(|_| div().into_any()),
5100 }],
5101 None,
5102 cx,
5103 );
5104
5105 // Blur the editor so that it displays placeholder text.
5106 cx.blur();
5107 })
5108 .unwrap();
5109
5110 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5111 EditorElement::new(&editor, style)
5112 });
5113 assert_eq!(state.position_map.line_layouts.len(), 4);
5114 assert_eq!(
5115 state
5116 .line_numbers
5117 .iter()
5118 .map(Option::is_some)
5119 .collect::<Vec<_>>(),
5120 &[false, false, false, true]
5121 );
5122 }
5123
5124 #[gpui::test]
5125 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
5126 const TAB_SIZE: u32 = 4;
5127
5128 let input_text = "\t \t|\t| a b";
5129 let expected_invisibles = vec![
5130 Invisible::Tab {
5131 line_start_offset: 0,
5132 },
5133 Invisible::Whitespace {
5134 line_offset: TAB_SIZE as usize,
5135 },
5136 Invisible::Tab {
5137 line_start_offset: TAB_SIZE as usize + 1,
5138 },
5139 Invisible::Tab {
5140 line_start_offset: TAB_SIZE as usize * 2 + 1,
5141 },
5142 Invisible::Whitespace {
5143 line_offset: TAB_SIZE as usize * 3 + 1,
5144 },
5145 Invisible::Whitespace {
5146 line_offset: TAB_SIZE as usize * 3 + 3,
5147 },
5148 ];
5149 assert_eq!(
5150 expected_invisibles.len(),
5151 input_text
5152 .chars()
5153 .filter(|initial_char| initial_char.is_whitespace())
5154 .count(),
5155 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5156 );
5157
5158 init_test(cx, |s| {
5159 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5160 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
5161 });
5162
5163 let actual_invisibles =
5164 collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, px(500.0));
5165
5166 assert_eq!(expected_invisibles, actual_invisibles);
5167 }
5168
5169 #[gpui::test]
5170 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
5171 init_test(cx, |s| {
5172 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5173 s.defaults.tab_size = NonZeroU32::new(4);
5174 });
5175
5176 for editor_mode_without_invisibles in [
5177 EditorMode::SingleLine,
5178 EditorMode::AutoHeight { max_lines: 100 },
5179 ] {
5180 let invisibles = collect_invisibles_from_new_editor(
5181 cx,
5182 editor_mode_without_invisibles,
5183 "\t\t\t| | a b",
5184 px(500.0),
5185 );
5186 assert!(invisibles.is_empty(),
5187 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
5188 }
5189 }
5190
5191 #[gpui::test]
5192 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
5193 let tab_size = 4;
5194 let input_text = "a\tbcd ".repeat(9);
5195 let repeated_invisibles = [
5196 Invisible::Tab {
5197 line_start_offset: 1,
5198 },
5199 Invisible::Whitespace {
5200 line_offset: tab_size as usize + 3,
5201 },
5202 Invisible::Whitespace {
5203 line_offset: tab_size as usize + 4,
5204 },
5205 Invisible::Whitespace {
5206 line_offset: tab_size as usize + 5,
5207 },
5208 ];
5209 let expected_invisibles = std::iter::once(repeated_invisibles)
5210 .cycle()
5211 .take(9)
5212 .flatten()
5213 .collect::<Vec<_>>();
5214 assert_eq!(
5215 expected_invisibles.len(),
5216 input_text
5217 .chars()
5218 .filter(|initial_char| initial_char.is_whitespace())
5219 .count(),
5220 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5221 );
5222 info!("Expected invisibles: {expected_invisibles:?}");
5223
5224 init_test(cx, |_| {});
5225
5226 // Put the same string with repeating whitespace pattern into editors of various size,
5227 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
5228 let resize_step = 10.0;
5229 let mut editor_width = 200.0;
5230 while editor_width <= 1000.0 {
5231 update_test_language_settings(cx, |s| {
5232 s.defaults.tab_size = NonZeroU32::new(tab_size);
5233 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5234 s.defaults.preferred_line_length = Some(editor_width as u32);
5235 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
5236 });
5237
5238 let actual_invisibles = collect_invisibles_from_new_editor(
5239 cx,
5240 EditorMode::Full,
5241 &input_text,
5242 px(editor_width),
5243 );
5244
5245 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
5246 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
5247 let mut i = 0;
5248 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
5249 i = actual_index;
5250 match expected_invisibles.get(i) {
5251 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
5252 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
5253 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
5254 _ => {
5255 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
5256 }
5257 },
5258 None => panic!("Unexpected extra invisible {actual_invisible:?} at index {i}"),
5259 }
5260 }
5261 let missing_expected_invisibles = &expected_invisibles[i + 1..];
5262 assert!(
5263 missing_expected_invisibles.is_empty(),
5264 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
5265 );
5266
5267 editor_width += resize_step;
5268 }
5269 }
5270
5271 fn collect_invisibles_from_new_editor(
5272 cx: &mut TestAppContext,
5273 editor_mode: EditorMode,
5274 input_text: &str,
5275 editor_width: Pixels,
5276 ) -> Vec<Invisible> {
5277 info!(
5278 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
5279 editor_width.0
5280 );
5281 let window = cx.add_window(|cx| {
5282 let buffer = MultiBuffer::build_simple(&input_text, cx);
5283 Editor::new(editor_mode, buffer, None, cx)
5284 });
5285 let cx = &mut VisualTestContext::from_window(*window, cx);
5286 let editor = window.root(cx).unwrap();
5287 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5288 window
5289 .update(cx, |editor, cx| {
5290 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
5291 editor.set_wrap_width(Some(editor_width), cx);
5292 })
5293 .unwrap();
5294 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5295 EditorElement::new(&editor, style)
5296 });
5297 state
5298 .position_map
5299 .line_layouts
5300 .iter()
5301 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
5302 .cloned()
5303 .collect()
5304 }
5305}
5306
5307pub fn register_action<T: Action>(
5308 view: &View<Editor>,
5309 cx: &mut WindowContext,
5310 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
5311) {
5312 let view = view.clone();
5313 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
5314 let action = action.downcast_ref().unwrap();
5315 if phase == DispatchPhase::Bubble {
5316 view.update(cx, |editor, cx| {
5317 listener(editor, action, cx);
5318 })
5319 }
5320 })
5321}
5322
5323fn compute_auto_height_layout(
5324 editor: &mut Editor,
5325 max_lines: usize,
5326 max_line_number_width: Pixels,
5327 known_dimensions: Size<Option<Pixels>>,
5328 available_width: AvailableSpace,
5329 cx: &mut ViewContext<Editor>,
5330) -> Option<Size<Pixels>> {
5331 let width = known_dimensions.width.or_else(|| {
5332 if let AvailableSpace::Definite(available_width) = available_width {
5333 Some(available_width)
5334 } else {
5335 None
5336 }
5337 })?;
5338 if let Some(height) = known_dimensions.height {
5339 return Some(size(width, height));
5340 }
5341
5342 let style = editor.style.as_ref().unwrap();
5343 let font_id = cx.text_system().resolve_font(&style.text.font());
5344 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5345 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5346 let em_width = cx
5347 .text_system()
5348 .typographic_bounds(font_id, font_size, 'm')
5349 .unwrap()
5350 .size
5351 .width;
5352
5353 let mut snapshot = editor.snapshot(cx);
5354 let gutter_dimensions =
5355 snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
5356
5357 editor.gutter_dimensions = gutter_dimensions;
5358 let text_width = width - gutter_dimensions.width;
5359 let overscroll = size(em_width, px(0.));
5360
5361 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
5362 if editor.set_wrap_width(Some(editor_width), cx) {
5363 snapshot = editor.snapshot(cx);
5364 }
5365
5366 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
5367 let height = scroll_height
5368 .max(line_height)
5369 .min(line_height * max_lines as f32);
5370
5371 Some(size(width, height))
5372}