1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 display_map::{
4 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
5 },
6 editor_settings::{
7 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
8 ShowScrollbar,
9 },
10 git::blame::{CommitDetails, GitBlame},
11 hover_popover::{
12 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
13 },
14 hunk_diff::{diff_hunk_to_display, DisplayDiffHunk},
15 hunk_status,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::scroll_amount::ScrollAmount,
19 BlockId, ChunkReplacement, CodeActionsMenu, CursorShape, CustomBlockId, DisplayPoint,
20 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, Editor, EditorMode, EditorSettings,
21 EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GutterDimensions, HalfPageDown,
22 HalfPageUp, HandleInput, HoveredCursor, HoveredHunk, JumpData, LineDown, LineUp, OpenExcerpts,
23 PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, Selection, SoftWrap, ToPoint,
24 CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
25 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use client::ParticipantIndex;
28use collections::{BTreeMap, HashMap, HashSet};
29use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
30use gpui::{
31 anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
32 transparent_black, Action, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClipboardItem,
33 ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
34 FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Length,
35 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
36 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
37 StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, View, ViewContext,
38 WeakView, WindowContext,
39};
40use gpui::{ClickEvent, Subscription};
41use itertools::Itertools;
42use language::{
43 language_settings::{
44 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
45 ShowWhitespaceSetting,
46 },
47 ChunkRendererContext,
48};
49use lsp::DiagnosticSeverity;
50use multi_buffer::{Anchor, ExcerptId, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow};
51use project::{
52 project_settings::{GitGutterSetting, ProjectSettings},
53 ProjectPath,
54};
55use settings::Settings;
56use smallvec::{smallvec, SmallVec};
57use std::{
58 any::TypeId,
59 borrow::Cow,
60 cmp::{self, Ordering},
61 fmt::{self, Write},
62 iter, mem,
63 ops::{Deref, Range},
64 rc::Rc,
65 sync::Arc,
66};
67use sum_tree::Bias;
68use theme::{ActiveTheme, Appearance, PlayerColor};
69use ui::prelude::*;
70use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
71use unicode_segmentation::UnicodeSegmentation;
72use util::RangeExt;
73use util::ResultExt;
74use workspace::{item::Item, Workspace};
75
76struct SelectionLayout {
77 head: DisplayPoint,
78 cursor_shape: CursorShape,
79 is_newest: bool,
80 is_local: bool,
81 range: Range<DisplayPoint>,
82 active_rows: Range<DisplayRow>,
83 user_name: Option<SharedString>,
84}
85
86impl SelectionLayout {
87 fn new<T: ToPoint + ToDisplayPoint + Clone>(
88 selection: Selection<T>,
89 line_mode: bool,
90 cursor_shape: CursorShape,
91 map: &DisplaySnapshot,
92 is_newest: bool,
93 is_local: bool,
94 user_name: Option<SharedString>,
95 ) -> Self {
96 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
97 let display_selection = point_selection.map(|p| p.to_display_point(map));
98 let mut range = display_selection.range();
99 let mut head = display_selection.head();
100 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
101 ..map.next_line_boundary(point_selection.end).1.row();
102
103 // vim visual line mode
104 if line_mode {
105 let point_range = map.expand_to_line(point_selection.range());
106 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
107 }
108
109 // any vim visual mode (including line mode)
110 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
111 && !range.is_empty()
112 && !selection.reversed
113 {
114 if head.column() > 0 {
115 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
116 } else if head.row().0 > 0 && head != map.max_point() {
117 head = map.clip_point(
118 DisplayPoint::new(
119 head.row().previous_row(),
120 map.line_len(head.row().previous_row()),
121 ),
122 Bias::Left,
123 );
124 // updating range.end is a no-op unless you're cursor is
125 // on the newline containing a multi-buffer divider
126 // in which case the clip_point may have moved the head up
127 // an additional row.
128 range.end = DisplayPoint::new(head.row().next_row(), 0);
129 active_rows.end = head.row();
130 }
131 }
132
133 Self {
134 head,
135 cursor_shape,
136 is_newest,
137 is_local,
138 range,
139 active_rows,
140 user_name,
141 }
142 }
143}
144
145pub struct EditorElement {
146 editor: View<Editor>,
147 style: EditorStyle,
148}
149
150type DisplayRowDelta = u32;
151
152impl EditorElement {
153 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(13.);
154
155 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
156 Self {
157 editor: editor.clone(),
158 style,
159 }
160 }
161
162 fn register_actions(&self, cx: &mut WindowContext) {
163 let view = &self.editor;
164 view.update(cx, |editor, cx| {
165 for action in editor.editor_actions.borrow().values() {
166 (action)(cx)
167 }
168 });
169
170 crate::rust_analyzer_ext::apply_related_actions(view, cx);
171 crate::clangd_ext::apply_related_actions(view, cx);
172 register_action(view, cx, Editor::move_left);
173 register_action(view, cx, Editor::move_right);
174 register_action(view, cx, Editor::move_down);
175 register_action(view, cx, Editor::move_down_by_lines);
176 register_action(view, cx, Editor::select_down_by_lines);
177 register_action(view, cx, Editor::move_up);
178 register_action(view, cx, Editor::move_up_by_lines);
179 register_action(view, cx, Editor::select_up_by_lines);
180 register_action(view, cx, Editor::select_page_down);
181 register_action(view, cx, Editor::select_page_up);
182 register_action(view, cx, Editor::cancel);
183 register_action(view, cx, Editor::newline);
184 register_action(view, cx, Editor::newline_above);
185 register_action(view, cx, Editor::newline_below);
186 register_action(view, cx, Editor::backspace);
187 register_action(view, cx, Editor::delete);
188 register_action(view, cx, Editor::tab);
189 register_action(view, cx, Editor::tab_prev);
190 register_action(view, cx, Editor::indent);
191 register_action(view, cx, Editor::outdent);
192 register_action(view, cx, Editor::autoindent);
193 register_action(view, cx, Editor::delete_line);
194 register_action(view, cx, Editor::join_lines);
195 register_action(view, cx, Editor::sort_lines_case_sensitive);
196 register_action(view, cx, Editor::sort_lines_case_insensitive);
197 register_action(view, cx, Editor::reverse_lines);
198 register_action(view, cx, Editor::shuffle_lines);
199 register_action(view, cx, Editor::convert_to_upper_case);
200 register_action(view, cx, Editor::convert_to_lower_case);
201 register_action(view, cx, Editor::convert_to_title_case);
202 register_action(view, cx, Editor::convert_to_snake_case);
203 register_action(view, cx, Editor::convert_to_kebab_case);
204 register_action(view, cx, Editor::convert_to_upper_camel_case);
205 register_action(view, cx, Editor::convert_to_lower_camel_case);
206 register_action(view, cx, Editor::convert_to_opposite_case);
207 register_action(view, cx, Editor::delete_to_previous_word_start);
208 register_action(view, cx, Editor::delete_to_previous_subword_start);
209 register_action(view, cx, Editor::delete_to_next_word_end);
210 register_action(view, cx, Editor::delete_to_next_subword_end);
211 register_action(view, cx, Editor::delete_to_beginning_of_line);
212 register_action(view, cx, Editor::delete_to_end_of_line);
213 register_action(view, cx, Editor::cut_to_end_of_line);
214 register_action(view, cx, Editor::duplicate_line_up);
215 register_action(view, cx, Editor::duplicate_line_down);
216 register_action(view, cx, Editor::move_line_up);
217 register_action(view, cx, Editor::move_line_down);
218 register_action(view, cx, Editor::transpose);
219 register_action(view, cx, Editor::rewrap);
220 register_action(view, cx, Editor::cut);
221 register_action(view, cx, Editor::kill_ring_cut);
222 register_action(view, cx, Editor::kill_ring_yank);
223 register_action(view, cx, Editor::copy);
224 register_action(view, cx, Editor::paste);
225 register_action(view, cx, Editor::undo);
226 register_action(view, cx, Editor::redo);
227 register_action(view, cx, Editor::move_page_up);
228 register_action(view, cx, Editor::move_page_down);
229 register_action(view, cx, Editor::next_screen);
230 register_action(view, cx, Editor::scroll_cursor_top);
231 register_action(view, cx, Editor::scroll_cursor_center);
232 register_action(view, cx, Editor::scroll_cursor_bottom);
233 register_action(view, cx, Editor::scroll_cursor_center_top_bottom);
234 register_action(view, cx, |editor, _: &LineDown, cx| {
235 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
236 });
237 register_action(view, cx, |editor, _: &LineUp, cx| {
238 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
239 });
240 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
241 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
242 });
243 register_action(view, cx, |editor, HandleInput(text): &HandleInput, cx| {
244 if text.is_empty() {
245 return;
246 }
247 editor.handle_input(text, cx);
248 });
249 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
250 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
251 });
252 register_action(view, cx, |editor, _: &PageDown, cx| {
253 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
254 });
255 register_action(view, cx, |editor, _: &PageUp, cx| {
256 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
257 });
258 register_action(view, cx, Editor::move_to_previous_word_start);
259 register_action(view, cx, Editor::move_to_previous_subword_start);
260 register_action(view, cx, Editor::move_to_next_word_end);
261 register_action(view, cx, Editor::move_to_next_subword_end);
262 register_action(view, cx, Editor::move_to_beginning_of_line);
263 register_action(view, cx, Editor::move_to_end_of_line);
264 register_action(view, cx, Editor::move_to_start_of_paragraph);
265 register_action(view, cx, Editor::move_to_end_of_paragraph);
266 register_action(view, cx, Editor::move_to_beginning);
267 register_action(view, cx, Editor::move_to_end);
268 register_action(view, cx, Editor::select_up);
269 register_action(view, cx, Editor::select_down);
270 register_action(view, cx, Editor::select_left);
271 register_action(view, cx, Editor::select_right);
272 register_action(view, cx, Editor::select_to_previous_word_start);
273 register_action(view, cx, Editor::select_to_previous_subword_start);
274 register_action(view, cx, Editor::select_to_next_word_end);
275 register_action(view, cx, Editor::select_to_next_subword_end);
276 register_action(view, cx, Editor::select_to_beginning_of_line);
277 register_action(view, cx, Editor::select_to_end_of_line);
278 register_action(view, cx, Editor::select_to_start_of_paragraph);
279 register_action(view, cx, Editor::select_to_end_of_paragraph);
280 register_action(view, cx, Editor::select_to_beginning);
281 register_action(view, cx, Editor::select_to_end);
282 register_action(view, cx, Editor::select_all);
283 register_action(view, cx, |editor, action, cx| {
284 editor.select_all_matches(action, cx).log_err();
285 });
286 register_action(view, cx, Editor::select_line);
287 register_action(view, cx, Editor::split_selection_into_lines);
288 register_action(view, cx, Editor::add_selection_above);
289 register_action(view, cx, Editor::add_selection_below);
290 register_action(view, cx, |editor, action, cx| {
291 editor.select_next(action, cx).log_err();
292 });
293 register_action(view, cx, |editor, action, cx| {
294 editor.select_previous(action, cx).log_err();
295 });
296 register_action(view, cx, Editor::toggle_comments);
297 register_action(view, cx, Editor::select_larger_syntax_node);
298 register_action(view, cx, Editor::select_smaller_syntax_node);
299 register_action(view, cx, Editor::select_enclosing_symbol);
300 register_action(view, cx, Editor::move_to_enclosing_bracket);
301 register_action(view, cx, Editor::undo_selection);
302 register_action(view, cx, Editor::redo_selection);
303 if !view.read(cx).is_singleton(cx) {
304 register_action(view, cx, Editor::expand_excerpts);
305 register_action(view, cx, Editor::expand_excerpts_up);
306 register_action(view, cx, Editor::expand_excerpts_down);
307 }
308 register_action(view, cx, Editor::go_to_diagnostic);
309 register_action(view, cx, Editor::go_to_prev_diagnostic);
310 register_action(view, cx, Editor::go_to_next_hunk);
311 register_action(view, cx, Editor::go_to_prev_hunk);
312 register_action(view, cx, |editor, a, cx| {
313 editor.go_to_definition(a, cx).detach_and_log_err(cx);
314 });
315 register_action(view, cx, |editor, a, cx| {
316 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
317 });
318 register_action(view, cx, |editor, a, cx| {
319 editor.go_to_declaration(a, cx).detach_and_log_err(cx);
320 });
321 register_action(view, cx, |editor, a, cx| {
322 editor.go_to_declaration_split(a, cx).detach_and_log_err(cx);
323 });
324 register_action(view, cx, |editor, a, cx| {
325 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
326 });
327 register_action(view, cx, |editor, a, cx| {
328 editor
329 .go_to_implementation_split(a, cx)
330 .detach_and_log_err(cx);
331 });
332 register_action(view, cx, |editor, a, cx| {
333 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
334 });
335 register_action(view, cx, |editor, a, cx| {
336 editor
337 .go_to_type_definition_split(a, cx)
338 .detach_and_log_err(cx);
339 });
340 register_action(view, cx, Editor::open_url);
341 register_action(view, cx, Editor::open_file);
342 register_action(view, cx, Editor::fold);
343 register_action(view, cx, Editor::fold_at_level);
344 register_action(view, cx, Editor::fold_all);
345 register_action(view, cx, Editor::fold_function_bodies);
346 register_action(view, cx, Editor::fold_at);
347 register_action(view, cx, Editor::fold_recursive);
348 register_action(view, cx, Editor::toggle_fold);
349 register_action(view, cx, Editor::toggle_fold_recursive);
350 register_action(view, cx, Editor::unfold_lines);
351 register_action(view, cx, Editor::unfold_recursive);
352 register_action(view, cx, Editor::unfold_all);
353 register_action(view, cx, Editor::unfold_at);
354 register_action(view, cx, Editor::fold_selected_ranges);
355 register_action(view, cx, Editor::show_completions);
356 register_action(view, cx, Editor::toggle_code_actions);
357 register_action(view, cx, Editor::open_excerpts);
358 register_action(view, cx, Editor::open_excerpts_in_split);
359 register_action(view, cx, Editor::open_proposed_changes_editor);
360 register_action(view, cx, Editor::toggle_soft_wrap);
361 register_action(view, cx, Editor::toggle_tab_bar);
362 register_action(view, cx, Editor::toggle_line_numbers);
363 register_action(view, cx, Editor::toggle_relative_line_numbers);
364 register_action(view, cx, Editor::toggle_indent_guides);
365 register_action(view, cx, Editor::toggle_inlay_hints);
366 register_action(view, cx, Editor::toggle_inline_completions);
367 register_action(view, cx, hover_popover::hover);
368 register_action(view, cx, Editor::reveal_in_finder);
369 register_action(view, cx, Editor::copy_path);
370 register_action(view, cx, Editor::copy_relative_path);
371 register_action(view, cx, Editor::copy_highlight_json);
372 register_action(view, cx, Editor::copy_permalink_to_line);
373 register_action(view, cx, Editor::open_permalink_to_line);
374 register_action(view, cx, Editor::copy_file_location);
375 register_action(view, cx, Editor::toggle_git_blame);
376 register_action(view, cx, Editor::toggle_git_blame_inline);
377 register_action(view, cx, Editor::toggle_hunk_diff);
378 register_action(view, cx, Editor::expand_all_hunk_diffs);
379 register_action(view, cx, |editor, action, cx| {
380 if let Some(task) = editor.format(action, cx) {
381 task.detach_and_log_err(cx);
382 } else {
383 cx.propagate();
384 }
385 });
386 register_action(view, cx, |editor, action, cx| {
387 if let Some(task) = editor.format_selections(action, cx) {
388 task.detach_and_log_err(cx);
389 } else {
390 cx.propagate();
391 }
392 });
393 register_action(view, cx, Editor::restart_language_server);
394 register_action(view, cx, Editor::cancel_language_server_work);
395 register_action(view, cx, Editor::show_character_palette);
396 register_action(view, cx, |editor, action, cx| {
397 if let Some(task) = editor.confirm_completion(action, cx) {
398 task.detach_and_log_err(cx);
399 } else {
400 cx.propagate();
401 }
402 });
403 register_action(view, cx, |editor, action, cx| {
404 if let Some(task) = editor.compose_completion(action, cx) {
405 task.detach_and_log_err(cx);
406 } else {
407 cx.propagate();
408 }
409 });
410 register_action(view, cx, |editor, action, cx| {
411 if let Some(task) = editor.confirm_code_action(action, cx) {
412 task.detach_and_log_err(cx);
413 } else {
414 cx.propagate();
415 }
416 });
417 register_action(view, cx, |editor, action, cx| {
418 if let Some(task) = editor.rename(action, cx) {
419 task.detach_and_log_err(cx);
420 } else {
421 cx.propagate();
422 }
423 });
424 register_action(view, cx, |editor, action, cx| {
425 if let Some(task) = editor.confirm_rename(action, cx) {
426 task.detach_and_log_err(cx);
427 } else {
428 cx.propagate();
429 }
430 });
431 register_action(view, cx, |editor, action, cx| {
432 if let Some(task) = editor.find_all_references(action, cx) {
433 task.detach_and_log_err(cx);
434 } else {
435 cx.propagate();
436 }
437 });
438 register_action(view, cx, Editor::show_signature_help);
439 register_action(view, cx, Editor::next_inline_completion);
440 register_action(view, cx, Editor::previous_inline_completion);
441 register_action(view, cx, Editor::show_inline_completion);
442 register_action(view, cx, Editor::context_menu_first);
443 register_action(view, cx, Editor::context_menu_prev);
444 register_action(view, cx, Editor::context_menu_next);
445 register_action(view, cx, Editor::context_menu_last);
446 register_action(view, cx, Editor::display_cursor_names);
447 register_action(view, cx, Editor::unique_lines_case_insensitive);
448 register_action(view, cx, Editor::unique_lines_case_sensitive);
449 register_action(view, cx, Editor::accept_partial_inline_completion);
450 register_action(view, cx, Editor::accept_inline_completion);
451 register_action(view, cx, Editor::revert_file);
452 register_action(view, cx, Editor::revert_selected_hunks);
453 register_action(view, cx, Editor::apply_all_diff_hunks);
454 register_action(view, cx, Editor::apply_selected_diff_hunks);
455 register_action(view, cx, Editor::open_active_item_in_terminal);
456 register_action(view, cx, Editor::reload_file);
457 register_action(view, cx, Editor::spawn_nearest_task);
458 }
459
460 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
461 let position_map = layout.position_map.clone();
462 cx.on_key_event({
463 let editor = self.editor.clone();
464 let text_hitbox = layout.text_hitbox.clone();
465 move |event: &ModifiersChangedEvent, phase, cx| {
466 if phase != DispatchPhase::Bubble {
467 return;
468 }
469 editor.update(cx, |editor, cx| {
470 if editor.hover_state.focused(cx) {
471 return;
472 }
473 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
474 })
475 }
476 });
477 }
478
479 fn modifiers_changed(
480 editor: &mut Editor,
481 event: &ModifiersChangedEvent,
482 position_map: &PositionMap,
483 text_hitbox: &Hitbox,
484 cx: &mut ViewContext<Editor>,
485 ) {
486 let mouse_position = cx.mouse_position();
487 if !text_hitbox.is_hovered(cx) {
488 return;
489 }
490
491 editor.update_hovered_link(
492 position_map.point_for_position(text_hitbox.bounds, mouse_position),
493 &position_map.snapshot,
494 event.modifiers,
495 cx,
496 )
497 }
498
499 fn mouse_left_down(
500 editor: &mut Editor,
501 event: &MouseDownEvent,
502 hovered_hunk: Option<HoveredHunk>,
503 position_map: &PositionMap,
504 text_hitbox: &Hitbox,
505 gutter_hitbox: &Hitbox,
506 cx: &mut ViewContext<Editor>,
507 ) {
508 if cx.default_prevented() {
509 return;
510 }
511
512 let mut click_count = event.click_count;
513 let mut modifiers = event.modifiers;
514
515 if let Some(hovered_hunk) = hovered_hunk {
516 editor.toggle_hovered_hunk(&hovered_hunk, cx);
517 cx.notify();
518 return;
519 } else if gutter_hitbox.is_hovered(cx) {
520 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
521 } else if !text_hitbox.is_hovered(cx) {
522 return;
523 }
524
525 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
526 match EditorSettings::get_global(cx).double_click_in_multibuffer {
527 DoubleClickInMultibuffer::Select => {
528 // do nothing special on double click, all selection logic is below
529 }
530 DoubleClickInMultibuffer::Open => {
531 if modifiers.alt {
532 // if double click is made with alt, pretend it's a regular double click without opening and alt,
533 // and run the selection logic.
534 modifiers.alt = false;
535 } else {
536 // if double click is made without alt, open the corresponding excerp
537 editor.open_excerpts(&OpenExcerpts, cx);
538 return;
539 }
540 }
541 }
542 }
543
544 let point_for_position =
545 position_map.point_for_position(text_hitbox.bounds, event.position);
546 let position = point_for_position.previous_valid;
547 if modifiers.shift && modifiers.alt {
548 editor.select(
549 SelectPhase::BeginColumnar {
550 position,
551 reset: false,
552 goal_column: point_for_position.exact_unclipped.column(),
553 },
554 cx,
555 );
556 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
557 {
558 editor.select(
559 SelectPhase::Extend {
560 position,
561 click_count,
562 },
563 cx,
564 );
565 } else {
566 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
567 let multi_cursor_modifier = match multi_cursor_setting {
568 MultiCursorModifier::Alt => modifiers.alt,
569 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
570 };
571 editor.select(
572 SelectPhase::Begin {
573 position,
574 add: multi_cursor_modifier,
575 click_count,
576 },
577 cx,
578 );
579 }
580
581 cx.stop_propagation();
582 }
583
584 fn mouse_right_down(
585 editor: &mut Editor,
586 event: &MouseDownEvent,
587 position_map: &PositionMap,
588 text_hitbox: &Hitbox,
589 cx: &mut ViewContext<Editor>,
590 ) {
591 if !text_hitbox.is_hovered(cx) {
592 return;
593 }
594 let point_for_position =
595 position_map.point_for_position(text_hitbox.bounds, event.position);
596 mouse_context_menu::deploy_context_menu(
597 editor,
598 event.position,
599 point_for_position.previous_valid,
600 cx,
601 );
602 cx.stop_propagation();
603 }
604
605 fn mouse_middle_down(
606 editor: &mut Editor,
607 event: &MouseDownEvent,
608 position_map: &PositionMap,
609 text_hitbox: &Hitbox,
610 cx: &mut ViewContext<Editor>,
611 ) {
612 if !text_hitbox.is_hovered(cx) || cx.default_prevented() {
613 return;
614 }
615
616 let point_for_position =
617 position_map.point_for_position(text_hitbox.bounds, event.position);
618 let position = point_for_position.previous_valid;
619
620 editor.select(
621 SelectPhase::BeginColumnar {
622 position,
623 reset: true,
624 goal_column: point_for_position.exact_unclipped.column(),
625 },
626 cx,
627 );
628 }
629
630 fn mouse_up(
631 editor: &mut Editor,
632 event: &MouseUpEvent,
633 position_map: &PositionMap,
634 text_hitbox: &Hitbox,
635 cx: &mut ViewContext<Editor>,
636 ) {
637 let end_selection = editor.has_pending_selection();
638 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
639
640 if end_selection {
641 editor.select(SelectPhase::End, cx);
642 }
643
644 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
645 let multi_cursor_modifier = match multi_cursor_setting {
646 MultiCursorModifier::Alt => event.modifiers.secondary(),
647 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
648 };
649
650 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
651 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
652 editor.handle_click_hovered_link(point, event.modifiers, cx);
653
654 cx.stop_propagation();
655 } else if end_selection && pending_nonempty_selections {
656 cx.stop_propagation();
657 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
658 && event.button == MouseButton::Middle
659 {
660 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
661 return;
662 }
663
664 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
665 if EditorSettings::get_global(cx).middle_click_paste {
666 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
667 let point_for_position =
668 position_map.point_for_position(text_hitbox.bounds, event.position);
669 let position = point_for_position.previous_valid;
670
671 editor.select(
672 SelectPhase::Begin {
673 position,
674 add: false,
675 click_count: 1,
676 },
677 cx,
678 );
679 editor.insert(&text, cx);
680 }
681 cx.stop_propagation()
682 }
683 }
684 }
685
686 fn mouse_dragged(
687 editor: &mut Editor,
688 event: &MouseMoveEvent,
689 position_map: &PositionMap,
690 text_bounds: Bounds<Pixels>,
691 cx: &mut ViewContext<Editor>,
692 ) {
693 if !editor.has_pending_selection() {
694 return;
695 }
696
697 let point_for_position = position_map.point_for_position(text_bounds, event.position);
698 let mut scroll_delta = gpui::Point::<f32>::default();
699 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
700 let top = text_bounds.origin.y + vertical_margin;
701 let bottom = text_bounds.lower_left().y - vertical_margin;
702 if event.position.y < top {
703 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
704 }
705 if event.position.y > bottom {
706 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
707 }
708
709 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
710 let left = text_bounds.origin.x + horizontal_margin;
711 let right = text_bounds.upper_right().x - horizontal_margin;
712 if event.position.x < left {
713 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
714 }
715 if event.position.x > right {
716 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
717 }
718
719 editor.select(
720 SelectPhase::Update {
721 position: point_for_position.previous_valid,
722 goal_column: point_for_position.exact_unclipped.column(),
723 scroll_delta,
724 },
725 cx,
726 );
727 }
728
729 fn mouse_moved(
730 editor: &mut Editor,
731 event: &MouseMoveEvent,
732 position_map: &PositionMap,
733 text_hitbox: &Hitbox,
734 gutter_hitbox: &Hitbox,
735 cx: &mut ViewContext<Editor>,
736 ) {
737 let modifiers = event.modifiers;
738 let gutter_hovered = gutter_hitbox.is_hovered(cx);
739 editor.set_gutter_hovered(gutter_hovered, cx);
740
741 // Don't trigger hover popover if mouse is hovering over context menu
742 if text_hitbox.is_hovered(cx) {
743 let point_for_position =
744 position_map.point_for_position(text_hitbox.bounds, event.position);
745
746 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
747
748 if let Some(point) = point_for_position.as_valid() {
749 let anchor = position_map
750 .snapshot
751 .buffer_snapshot
752 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
753 hover_at(editor, Some(anchor), cx);
754 Self::update_visible_cursor(editor, point, position_map, cx);
755 } else {
756 hover_at(editor, None, cx);
757 }
758 } else {
759 editor.hide_hovered_link(cx);
760 hover_at(editor, None, cx);
761 if gutter_hovered {
762 cx.stop_propagation();
763 }
764 }
765 }
766
767 fn update_visible_cursor(
768 editor: &mut Editor,
769 point: DisplayPoint,
770 position_map: &PositionMap,
771 cx: &mut ViewContext<Editor>,
772 ) {
773 let snapshot = &position_map.snapshot;
774 let Some(hub) = editor.collaboration_hub() else {
775 return;
776 };
777 let start = snapshot.display_snapshot.clip_point(
778 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
779 Bias::Left,
780 );
781 let end = snapshot.display_snapshot.clip_point(
782 DisplayPoint::new(
783 point.row(),
784 (point.column() + 1).min(snapshot.line_len(point.row())),
785 ),
786 Bias::Right,
787 );
788
789 let range = snapshot
790 .buffer_snapshot
791 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
792 ..snapshot
793 .buffer_snapshot
794 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
795
796 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
797 return;
798 };
799 let key = crate::HoveredCursor {
800 replica_id: selection.replica_id,
801 selection_id: selection.selection.id,
802 };
803 editor.hovered_cursors.insert(
804 key.clone(),
805 cx.spawn(|editor, mut cx| async move {
806 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
807 editor
808 .update(&mut cx, |editor, cx| {
809 editor.hovered_cursors.remove(&key);
810 cx.notify();
811 })
812 .ok();
813 }),
814 );
815 cx.notify()
816 }
817
818 #[allow(clippy::too_many_arguments)]
819 fn layout_selections(
820 &self,
821 start_anchor: Anchor,
822 end_anchor: Anchor,
823 local_selections: &[Selection<Point>],
824 snapshot: &EditorSnapshot,
825 start_row: DisplayRow,
826 end_row: DisplayRow,
827 cx: &mut WindowContext,
828 ) -> (
829 Vec<(PlayerColor, Vec<SelectionLayout>)>,
830 BTreeMap<DisplayRow, bool>,
831 Option<DisplayPoint>,
832 ) {
833 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
834 let mut active_rows = BTreeMap::new();
835 let mut newest_selection_head = None;
836 self.editor.update(cx, |editor, cx| {
837 if editor.show_local_selections {
838 let mut layouts = Vec::new();
839 let newest = editor.selections.newest(cx);
840 for selection in local_selections.iter().cloned() {
841 let is_empty = selection.start == selection.end;
842 let is_newest = selection == newest;
843
844 let layout = SelectionLayout::new(
845 selection,
846 editor.selections.line_mode,
847 editor.cursor_shape,
848 &snapshot.display_snapshot,
849 is_newest,
850 editor.leader_peer_id.is_none(),
851 None,
852 );
853 if is_newest {
854 newest_selection_head = Some(layout.head);
855 }
856
857 for row in cmp::max(layout.active_rows.start.0, start_row.0)
858 ..=cmp::min(layout.active_rows.end.0, end_row.0)
859 {
860 let contains_non_empty_selection =
861 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
862 *contains_non_empty_selection |= !is_empty;
863 }
864 layouts.push(layout);
865 }
866
867 let player = if editor.read_only(cx) {
868 cx.theme().players().read_only()
869 } else {
870 self.style.local_player
871 };
872
873 selections.push((player, layouts));
874 }
875
876 if let Some(collaboration_hub) = &editor.collaboration_hub {
877 // When following someone, render the local selections in their color.
878 if let Some(leader_id) = editor.leader_peer_id {
879 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
880 {
881 if let Some(participant_index) = collaboration_hub
882 .user_participant_indices(cx)
883 .get(&collaborator.user_id)
884 {
885 if let Some((local_selection_style, _)) = selections.first_mut() {
886 *local_selection_style = cx
887 .theme()
888 .players()
889 .color_for_participant(participant_index.0);
890 }
891 }
892 }
893 }
894
895 let mut remote_selections = HashMap::default();
896 for selection in snapshot.remote_selections_in_range(
897 &(start_anchor..end_anchor),
898 collaboration_hub.as_ref(),
899 cx,
900 ) {
901 let selection_style =
902 Self::get_participant_color(selection.participant_index, cx);
903
904 // Don't re-render the leader's selections, since the local selections
905 // match theirs.
906 if Some(selection.peer_id) == editor.leader_peer_id {
907 continue;
908 }
909 let key = HoveredCursor {
910 replica_id: selection.replica_id,
911 selection_id: selection.selection.id,
912 };
913
914 let is_shown =
915 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
916
917 remote_selections
918 .entry(selection.replica_id)
919 .or_insert((selection_style, Vec::new()))
920 .1
921 .push(SelectionLayout::new(
922 selection.selection,
923 selection.line_mode,
924 selection.cursor_shape,
925 &snapshot.display_snapshot,
926 false,
927 false,
928 if is_shown { selection.user_name } else { None },
929 ));
930 }
931
932 selections.extend(remote_selections.into_values());
933 } else if !editor.is_focused(cx) && editor.show_cursor_when_unfocused {
934 let player = if editor.read_only(cx) {
935 cx.theme().players().read_only()
936 } else {
937 self.style.local_player
938 };
939 let layouts = snapshot
940 .buffer_snapshot
941 .selections_in_range(&(start_anchor..end_anchor), true)
942 .map(move |(_, line_mode, cursor_shape, selection)| {
943 SelectionLayout::new(
944 selection,
945 line_mode,
946 cursor_shape,
947 &snapshot.display_snapshot,
948 false,
949 false,
950 None,
951 )
952 })
953 .collect::<Vec<_>>();
954 selections.push((player, layouts));
955 }
956 });
957 (selections, active_rows, newest_selection_head)
958 }
959
960 fn collect_cursors(
961 &self,
962 snapshot: &EditorSnapshot,
963 cx: &mut WindowContext,
964 ) -> Vec<(DisplayPoint, Hsla)> {
965 let editor = self.editor.read(cx);
966 let mut cursors = Vec::new();
967 let mut skip_local = false;
968 let mut add_cursor = |anchor: Anchor, color| {
969 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
970 };
971 // Remote cursors
972 if let Some(collaboration_hub) = &editor.collaboration_hub {
973 for remote_selection in snapshot.remote_selections_in_range(
974 &(Anchor::min()..Anchor::max()),
975 collaboration_hub.deref(),
976 cx,
977 ) {
978 let color = Self::get_participant_color(remote_selection.participant_index, cx);
979 add_cursor(remote_selection.selection.head(), color.cursor);
980 if Some(remote_selection.peer_id) == editor.leader_peer_id {
981 skip_local = true;
982 }
983 }
984 }
985 // Local cursors
986 if !skip_local {
987 let color = cx.theme().players().local().cursor;
988 editor.selections.disjoint.iter().for_each(|selection| {
989 add_cursor(selection.head(), color);
990 });
991 if let Some(ref selection) = editor.selections.pending_anchor() {
992 add_cursor(selection.head(), color);
993 }
994 }
995 cursors
996 }
997
998 #[allow(clippy::too_many_arguments)]
999 fn layout_visible_cursors(
1000 &self,
1001 snapshot: &EditorSnapshot,
1002 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1003 block_start_rows: &HashSet<DisplayRow>,
1004 visible_display_row_range: Range<DisplayRow>,
1005 line_layouts: &[LineWithInvisibles],
1006 text_hitbox: &Hitbox,
1007 content_origin: gpui::Point<Pixels>,
1008 scroll_position: gpui::Point<f32>,
1009 scroll_pixel_position: gpui::Point<Pixels>,
1010 line_height: Pixels,
1011 em_width: Pixels,
1012 autoscroll_containing_element: bool,
1013 cx: &mut WindowContext,
1014 ) -> Vec<CursorLayout> {
1015 let mut autoscroll_bounds = None;
1016 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1017 let mut cursors = Vec::new();
1018 for (player_color, selections) in selections {
1019 for selection in selections {
1020 let cursor_position = selection.head;
1021
1022 let in_range = visible_display_row_range.contains(&cursor_position.row());
1023 if (selection.is_local && !editor.show_local_cursors(cx))
1024 || !in_range
1025 || block_start_rows.contains(&cursor_position.row())
1026 {
1027 continue;
1028 }
1029
1030 let cursor_row_layout = &line_layouts
1031 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1032 let cursor_column = cursor_position.column() as usize;
1033
1034 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1035 let mut block_width =
1036 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1037 if block_width == Pixels::ZERO {
1038 block_width = em_width;
1039 }
1040 let block_text = if let CursorShape::Block = selection.cursor_shape {
1041 snapshot
1042 .grapheme_at(cursor_position)
1043 .or_else(|| {
1044 if cursor_column == 0 {
1045 snapshot.placeholder_text().and_then(|s| {
1046 s.graphemes(true).next().map(|s| s.to_string().into())
1047 })
1048 } else {
1049 None
1050 }
1051 })
1052 .and_then(|text| {
1053 let len = text.len();
1054
1055 let font = cursor_row_layout
1056 .font_id_for_index(cursor_column)
1057 .and_then(|cursor_font_id| {
1058 cx.text_system().get_font_for_id(cursor_font_id)
1059 })
1060 .unwrap_or(self.style.text.font());
1061
1062 // Invert the text color for the block cursor. Ensure that the text
1063 // color is opaque enough to be visible against the background color.
1064 //
1065 // 0.75 is an arbitrary threshold to determine if the background color is
1066 // opaque enough to use as a text color.
1067 //
1068 // TODO: In the future we should ensure themes have a `text_inverse` color.
1069 let color = if cx.theme().colors().editor_background.a < 0.75 {
1070 match cx.theme().appearance {
1071 Appearance::Dark => Hsla::black(),
1072 Appearance::Light => Hsla::white(),
1073 }
1074 } else {
1075 cx.theme().colors().editor_background
1076 };
1077
1078 cx.text_system()
1079 .shape_line(
1080 text,
1081 cursor_row_layout.font_size,
1082 &[TextRun {
1083 len,
1084 font,
1085 color,
1086 background_color: None,
1087 strikethrough: None,
1088 underline: None,
1089 }],
1090 )
1091 .log_err()
1092 })
1093 } else {
1094 None
1095 };
1096
1097 let x = cursor_character_x - scroll_pixel_position.x;
1098 let y = (cursor_position.row().as_f32()
1099 - scroll_pixel_position.y / line_height)
1100 * line_height;
1101 if selection.is_newest {
1102 editor.pixel_position_of_newest_cursor = Some(point(
1103 text_hitbox.origin.x + x + block_width / 2.,
1104 text_hitbox.origin.y + y + line_height / 2.,
1105 ));
1106
1107 if autoscroll_containing_element {
1108 let top = text_hitbox.origin.y
1109 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1110 * line_height;
1111 let left = text_hitbox.origin.x
1112 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1113 .max(0.)
1114 * em_width;
1115
1116 let bottom = text_hitbox.origin.y
1117 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1118 * line_height;
1119 let right = text_hitbox.origin.x
1120 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1121 * em_width;
1122
1123 autoscroll_bounds =
1124 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1125 }
1126 }
1127
1128 let mut cursor = CursorLayout {
1129 color: player_color.cursor,
1130 block_width,
1131 origin: point(x, y),
1132 line_height,
1133 shape: selection.cursor_shape,
1134 block_text,
1135 cursor_name: None,
1136 };
1137 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1138 string: name,
1139 color: self.style.background,
1140 is_top_row: cursor_position.row().0 == 0,
1141 });
1142 cursor.layout(content_origin, cursor_name, cx);
1143 cursors.push(cursor);
1144 }
1145 }
1146 cursors
1147 });
1148
1149 if let Some(bounds) = autoscroll_bounds {
1150 cx.request_autoscroll(bounds);
1151 }
1152
1153 cursor_layouts
1154 }
1155
1156 fn layout_scrollbar(
1157 &self,
1158 snapshot: &EditorSnapshot,
1159 bounds: Bounds<Pixels>,
1160 scroll_position: gpui::Point<f32>,
1161 rows_per_page: f32,
1162 non_visible_cursors: bool,
1163 cx: &mut WindowContext,
1164 ) -> Option<ScrollbarLayout> {
1165 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1166 let show_scrollbars = match scrollbar_settings.show {
1167 ShowScrollbar::Auto => {
1168 let editor = self.editor.read(cx);
1169 let is_singleton = editor.is_singleton(cx);
1170 // Git
1171 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1172 ||
1173 // Buffer Search Results
1174 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1175 ||
1176 // Selected Symbol Occurrences
1177 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1178 ||
1179 // Diagnostics
1180 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1181 ||
1182 // Cursors out of sight
1183 non_visible_cursors
1184 ||
1185 // Scrollmanager
1186 editor.scroll_manager.scrollbars_visible()
1187 }
1188 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1189 ShowScrollbar::Always => true,
1190 ShowScrollbar::Never => false,
1191 };
1192 if snapshot.mode != EditorMode::Full {
1193 return None;
1194 }
1195
1196 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1197
1198 // If a drag took place after we started dragging the scrollbar,
1199 // cancel the scrollbar drag.
1200 if cx.has_active_drag() {
1201 self.editor.update(cx, |editor, cx| {
1202 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1203 });
1204 }
1205
1206 let track_bounds = Bounds::from_corners(
1207 point(self.scrollbar_left(&bounds), bounds.origin.y),
1208 point(bounds.lower_right().x, bounds.lower_left().y),
1209 );
1210
1211 let settings = EditorSettings::get_global(cx);
1212 let scroll_beyond_last_line: f32 = match settings.scroll_beyond_last_line {
1213 ScrollBeyondLastLine::OnePage => rows_per_page,
1214 ScrollBeyondLastLine::Off => 1.0,
1215 ScrollBeyondLastLine::VerticalScrollMargin => 1.0 + settings.vertical_scroll_margin,
1216 };
1217 let total_rows =
1218 (snapshot.max_point().row().as_f32() + scroll_beyond_last_line).max(rows_per_page);
1219 let height = bounds.size.height;
1220 let px_per_row = height / total_rows;
1221 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1222 let row_height = (height - thumb_height) / (total_rows - rows_per_page).max(0.);
1223
1224 Some(ScrollbarLayout {
1225 hitbox: cx.insert_hitbox(track_bounds, false),
1226 visible_row_range,
1227 row_height,
1228 visible: show_scrollbars,
1229 thumb_height,
1230 })
1231 }
1232
1233 #[allow(clippy::too_many_arguments)]
1234 fn prepaint_crease_toggles(
1235 &self,
1236 crease_toggles: &mut [Option<AnyElement>],
1237 line_height: Pixels,
1238 gutter_dimensions: &GutterDimensions,
1239 gutter_settings: crate::editor_settings::Gutter,
1240 scroll_pixel_position: gpui::Point<Pixels>,
1241 gutter_hitbox: &Hitbox,
1242 cx: &mut WindowContext,
1243 ) {
1244 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1245 if let Some(crease_toggle) = crease_toggle {
1246 debug_assert!(gutter_settings.folds);
1247 let available_space = size(
1248 AvailableSpace::MinContent,
1249 AvailableSpace::Definite(line_height * 0.55),
1250 );
1251 let crease_toggle_size = crease_toggle.layout_as_root(available_space, cx);
1252
1253 let position = point(
1254 gutter_dimensions.width - gutter_dimensions.right_padding,
1255 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1256 );
1257 let centering_offset = point(
1258 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1259 (line_height - crease_toggle_size.height) / 2.,
1260 );
1261 let origin = gutter_hitbox.origin + position + centering_offset;
1262 crease_toggle.prepaint_as_root(origin, available_space, cx);
1263 }
1264 }
1265 }
1266
1267 #[allow(clippy::too_many_arguments)]
1268 fn prepaint_crease_trailers(
1269 &self,
1270 trailers: Vec<Option<AnyElement>>,
1271 lines: &[LineWithInvisibles],
1272 line_height: Pixels,
1273 content_origin: gpui::Point<Pixels>,
1274 scroll_pixel_position: gpui::Point<Pixels>,
1275 em_width: Pixels,
1276 cx: &mut WindowContext,
1277 ) -> Vec<Option<CreaseTrailerLayout>> {
1278 trailers
1279 .into_iter()
1280 .enumerate()
1281 .map(|(ix, element)| {
1282 let mut element = element?;
1283 let available_space = size(
1284 AvailableSpace::MinContent,
1285 AvailableSpace::Definite(line_height),
1286 );
1287 let size = element.layout_as_root(available_space, cx);
1288
1289 let line = &lines[ix];
1290 let padding = if line.width == Pixels::ZERO {
1291 Pixels::ZERO
1292 } else {
1293 4. * em_width
1294 };
1295 let position = point(
1296 scroll_pixel_position.x + line.width + padding,
1297 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1298 );
1299 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1300 let origin = content_origin + position + centering_offset;
1301 element.prepaint_as_root(origin, available_space, cx);
1302 Some(CreaseTrailerLayout {
1303 element,
1304 bounds: Bounds::new(origin, size),
1305 })
1306 })
1307 .collect()
1308 }
1309
1310 // Folds contained in a hunk are ignored apart from shrinking visual size
1311 // If a fold contains any hunks then that fold line is marked as modified
1312 fn layout_gutter_git_hunks(
1313 &self,
1314 line_height: Pixels,
1315 gutter_hitbox: &Hitbox,
1316 display_rows: Range<DisplayRow>,
1317 anchor_range: Range<Anchor>,
1318 snapshot: &EditorSnapshot,
1319 cx: &mut WindowContext,
1320 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1321 let buffer_snapshot = &snapshot.buffer_snapshot;
1322
1323 let buffer_start_row = MultiBufferRow(
1324 DisplayPoint::new(display_rows.start, 0)
1325 .to_point(snapshot)
1326 .row,
1327 );
1328 let buffer_end_row = MultiBufferRow(
1329 DisplayPoint::new(display_rows.end, 0)
1330 .to_point(snapshot)
1331 .row,
1332 );
1333
1334 let git_gutter_setting = ProjectSettings::get_global(cx)
1335 .git
1336 .git_gutter
1337 .unwrap_or_default();
1338
1339 self.editor.update(cx, |editor, cx| {
1340 let expanded_hunks = &editor.expanded_hunks.hunks;
1341 let expanded_hunks_start_ix = expanded_hunks
1342 .binary_search_by(|hunk| {
1343 hunk.hunk_range
1344 .end
1345 .cmp(&anchor_range.start, &buffer_snapshot)
1346 .then(Ordering::Less)
1347 })
1348 .unwrap_err();
1349 let mut expanded_hunks = expanded_hunks[expanded_hunks_start_ix..].iter().peekable();
1350
1351 let display_hunks = buffer_snapshot
1352 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1353 .filter_map(|hunk| {
1354 let display_hunk = diff_hunk_to_display(&hunk, snapshot);
1355
1356 if let DisplayDiffHunk::Unfolded {
1357 multi_buffer_range,
1358 status,
1359 ..
1360 } = &display_hunk
1361 {
1362 let mut is_expanded = false;
1363 while let Some(expanded_hunk) = expanded_hunks.peek() {
1364 match expanded_hunk
1365 .hunk_range
1366 .start
1367 .cmp(&multi_buffer_range.start, &buffer_snapshot)
1368 {
1369 Ordering::Less => {
1370 expanded_hunks.next();
1371 }
1372 Ordering::Equal => {
1373 is_expanded = true;
1374 break;
1375 }
1376 Ordering::Greater => {
1377 break;
1378 }
1379 }
1380 }
1381 match status {
1382 DiffHunkStatus::Added => {}
1383 DiffHunkStatus::Modified => {}
1384 DiffHunkStatus::Removed => {
1385 if is_expanded {
1386 return None;
1387 }
1388 }
1389 }
1390 }
1391
1392 Some(display_hunk)
1393 })
1394 .dedup()
1395 .map(|hunk| match git_gutter_setting {
1396 GitGutterSetting::TrackedFiles => {
1397 let hitbox = match hunk {
1398 DisplayDiffHunk::Unfolded { .. } => {
1399 let hunk_bounds = Self::diff_hunk_bounds(
1400 snapshot,
1401 line_height,
1402 gutter_hitbox.bounds,
1403 &hunk,
1404 );
1405 Some(cx.insert_hitbox(hunk_bounds, true))
1406 }
1407 DisplayDiffHunk::Folded { .. } => None,
1408 };
1409 (hunk, hitbox)
1410 }
1411 GitGutterSetting::Hide => (hunk, None),
1412 })
1413 .collect();
1414 display_hunks
1415 })
1416 }
1417
1418 #[allow(clippy::too_many_arguments)]
1419 fn layout_inline_blame(
1420 &self,
1421 display_row: DisplayRow,
1422 display_snapshot: &DisplaySnapshot,
1423 line_layout: &LineWithInvisibles,
1424 crease_trailer: Option<&CreaseTrailerLayout>,
1425 em_width: Pixels,
1426 content_origin: gpui::Point<Pixels>,
1427 scroll_pixel_position: gpui::Point<Pixels>,
1428 line_height: Pixels,
1429 cx: &mut WindowContext,
1430 ) -> Option<AnyElement> {
1431 if !self
1432 .editor
1433 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1434 {
1435 return None;
1436 }
1437
1438 let workspace = self
1439 .editor
1440 .read(cx)
1441 .workspace
1442 .as_ref()
1443 .map(|(w, _)| w.clone());
1444
1445 let display_point = DisplayPoint::new(display_row, 0);
1446 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1447
1448 let blame = self.editor.read(cx).blame.clone()?;
1449 let blame_entry = blame
1450 .update(cx, |blame, cx| {
1451 blame.blame_for_rows([Some(buffer_row)], cx).next()
1452 })
1453 .flatten()?;
1454
1455 let mut element =
1456 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1457
1458 let start_y = content_origin.y
1459 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1460
1461 let start_x = {
1462 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1463
1464 let line_end = if let Some(crease_trailer) = crease_trailer {
1465 crease_trailer.bounds.right()
1466 } else {
1467 content_origin.x - scroll_pixel_position.x + line_layout.width
1468 };
1469 let padded_line_end = line_end + em_width * INLINE_BLAME_PADDING_EM_WIDTHS;
1470
1471 let min_column_in_pixels = ProjectSettings::get_global(cx)
1472 .git
1473 .inline_blame
1474 .and_then(|settings| settings.min_column)
1475 .map(|col| self.column_pixels(col as usize, cx))
1476 .unwrap_or(px(0.));
1477 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1478
1479 cmp::max(padded_line_end, min_start)
1480 };
1481
1482 let absolute_offset = point(start_x, start_y);
1483 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), cx);
1484
1485 Some(element)
1486 }
1487
1488 #[allow(clippy::too_many_arguments)]
1489 fn layout_blame_entries(
1490 &self,
1491 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1492 em_width: Pixels,
1493 scroll_position: gpui::Point<f32>,
1494 line_height: Pixels,
1495 gutter_hitbox: &Hitbox,
1496 max_width: Option<Pixels>,
1497 cx: &mut WindowContext,
1498 ) -> Option<Vec<AnyElement>> {
1499 if !self
1500 .editor
1501 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1502 {
1503 return None;
1504 }
1505
1506 let blame = self.editor.read(cx).blame.clone()?;
1507 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1508 blame.blame_for_rows(buffer_rows, cx).collect()
1509 });
1510
1511 let width = if let Some(max_width) = max_width {
1512 AvailableSpace::Definite(max_width)
1513 } else {
1514 AvailableSpace::MaxContent
1515 };
1516 let scroll_top = scroll_position.y * line_height;
1517 let start_x = em_width;
1518
1519 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1520
1521 let shaped_lines = blamed_rows
1522 .into_iter()
1523 .enumerate()
1524 .flat_map(|(ix, blame_entry)| {
1525 if let Some(blame_entry) = blame_entry {
1526 let mut element = render_blame_entry(
1527 ix,
1528 &blame,
1529 blame_entry,
1530 &self.style,
1531 &mut last_used_color,
1532 self.editor.clone(),
1533 cx,
1534 );
1535
1536 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1537 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1538
1539 element.prepaint_as_root(
1540 absolute_offset,
1541 size(width, AvailableSpace::MinContent),
1542 cx,
1543 );
1544
1545 Some(element)
1546 } else {
1547 None
1548 }
1549 })
1550 .collect();
1551
1552 Some(shaped_lines)
1553 }
1554
1555 #[allow(clippy::too_many_arguments)]
1556 fn layout_indent_guides(
1557 &self,
1558 content_origin: gpui::Point<Pixels>,
1559 text_origin: gpui::Point<Pixels>,
1560 visible_buffer_range: Range<MultiBufferRow>,
1561 scroll_pixel_position: gpui::Point<Pixels>,
1562 line_height: Pixels,
1563 snapshot: &DisplaySnapshot,
1564 cx: &mut WindowContext,
1565 ) -> Option<Vec<IndentGuideLayout>> {
1566 let indent_guides = self.editor.update(cx, |editor, cx| {
1567 editor.indent_guides(visible_buffer_range, snapshot, cx)
1568 })?;
1569
1570 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1571 editor
1572 .find_active_indent_guide_indices(&indent_guides, snapshot, cx)
1573 .unwrap_or_default()
1574 });
1575
1576 Some(
1577 indent_guides
1578 .into_iter()
1579 .enumerate()
1580 .filter_map(|(i, indent_guide)| {
1581 let single_indent_width =
1582 self.column_pixels(indent_guide.tab_size as usize, cx);
1583 let total_width = single_indent_width * indent_guide.depth as f32;
1584 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1585 if start_x >= text_origin.x {
1586 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1587 indent_guide.multibuffer_row_range.clone(),
1588 line_height,
1589 snapshot,
1590 );
1591
1592 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1593
1594 Some(IndentGuideLayout {
1595 origin: point(start_x, start_y),
1596 length,
1597 single_indent_width,
1598 depth: indent_guide.depth,
1599 active: active_indent_guide_indices.contains(&i),
1600 settings: indent_guide.settings,
1601 })
1602 } else {
1603 None
1604 }
1605 })
1606 .collect(),
1607 )
1608 }
1609
1610 fn calculate_indent_guide_bounds(
1611 row_range: Range<MultiBufferRow>,
1612 line_height: Pixels,
1613 snapshot: &DisplaySnapshot,
1614 ) -> (gpui::Pixels, gpui::Pixels) {
1615 let start_point = Point::new(row_range.start.0, 0);
1616 let end_point = Point::new(row_range.end.0, 0);
1617
1618 let row_range = start_point.to_display_point(snapshot).row()
1619 ..end_point.to_display_point(snapshot).row();
1620
1621 let mut prev_line = start_point;
1622 prev_line.row = prev_line.row.saturating_sub(1);
1623 let prev_line = prev_line.to_display_point(snapshot).row();
1624
1625 let mut cons_line = end_point;
1626 cons_line.row += 1;
1627 let cons_line = cons_line.to_display_point(snapshot).row();
1628
1629 let mut offset_y = row_range.start.0 as f32 * line_height;
1630 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1631
1632 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1633 if row_range.end == cons_line {
1634 length += line_height;
1635 }
1636
1637 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1638 // we want to extend the indent guide to the start of the block.
1639 let mut block_height = 0;
1640 let mut block_offset = 0;
1641 let mut found_excerpt_header = false;
1642 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1643 if matches!(block, Block::ExcerptBoundary { .. }) {
1644 found_excerpt_header = true;
1645 break;
1646 }
1647 block_offset += block.height();
1648 block_height += block.height();
1649 }
1650 if !found_excerpt_header {
1651 offset_y -= block_offset as f32 * line_height;
1652 length += block_height as f32 * line_height;
1653 }
1654
1655 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1656 // we want to ensure that the indent guide stops before the excerpt header.
1657 let mut block_height = 0;
1658 let mut found_excerpt_header = false;
1659 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1660 if matches!(block, Block::ExcerptBoundary { .. }) {
1661 found_excerpt_header = true;
1662 }
1663 block_height += block.height();
1664 }
1665 if found_excerpt_header {
1666 length -= block_height as f32 * line_height;
1667 }
1668
1669 (offset_y, length)
1670 }
1671
1672 #[allow(clippy::too_many_arguments)]
1673 fn layout_run_indicators(
1674 &self,
1675 line_height: Pixels,
1676 range: Range<DisplayRow>,
1677 scroll_pixel_position: gpui::Point<Pixels>,
1678 gutter_dimensions: &GutterDimensions,
1679 gutter_hitbox: &Hitbox,
1680 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1681 snapshot: &EditorSnapshot,
1682 cx: &mut WindowContext,
1683 ) -> Vec<AnyElement> {
1684 self.editor.update(cx, |editor, cx| {
1685 let active_task_indicator_row =
1686 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1687 deployed_from_indicator,
1688 actions,
1689 ..
1690 })) = editor.context_menu.read().as_ref()
1691 {
1692 actions
1693 .tasks
1694 .as_ref()
1695 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1696 .or(*deployed_from_indicator)
1697 } else {
1698 None
1699 };
1700
1701 editor
1702 .tasks
1703 .iter()
1704 .filter_map(|(_, tasks)| {
1705 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1706 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1707 let display_row = multibuffer_point.to_display_point(snapshot).row();
1708 if range.start > display_row || range.end < display_row {
1709 return None;
1710 }
1711 if snapshot.is_line_folded(multibuffer_row) {
1712 // Skip folded indicators, unless it's the starting line of a fold.
1713 if multibuffer_row
1714 .0
1715 .checked_sub(1)
1716 .map_or(false, |previous_row| {
1717 snapshot.is_line_folded(MultiBufferRow(previous_row))
1718 })
1719 {
1720 return None;
1721 }
1722 }
1723 let button = editor.render_run_indicator(
1724 &self.style,
1725 Some(display_row) == active_task_indicator_row,
1726 display_row,
1727 cx,
1728 );
1729
1730 let button = prepaint_gutter_button(
1731 button,
1732 display_row,
1733 line_height,
1734 gutter_dimensions,
1735 scroll_pixel_position,
1736 gutter_hitbox,
1737 rows_with_hunk_bounds,
1738 cx,
1739 );
1740 Some(button)
1741 })
1742 .collect_vec()
1743 })
1744 }
1745
1746 #[allow(clippy::too_many_arguments)]
1747 fn layout_code_actions_indicator(
1748 &self,
1749 line_height: Pixels,
1750 newest_selection_head: DisplayPoint,
1751 scroll_pixel_position: gpui::Point<Pixels>,
1752 gutter_dimensions: &GutterDimensions,
1753 gutter_hitbox: &Hitbox,
1754 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1755 cx: &mut WindowContext,
1756 ) -> Option<AnyElement> {
1757 let mut active = false;
1758 let mut button = None;
1759 let row = newest_selection_head.row();
1760 self.editor.update(cx, |editor, cx| {
1761 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1762 deployed_from_indicator,
1763 ..
1764 })) = editor.context_menu.read().as_ref()
1765 {
1766 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1767 };
1768 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1769 });
1770
1771 let button = prepaint_gutter_button(
1772 button?,
1773 row,
1774 line_height,
1775 gutter_dimensions,
1776 scroll_pixel_position,
1777 gutter_hitbox,
1778 rows_with_hunk_bounds,
1779 cx,
1780 );
1781
1782 Some(button)
1783 }
1784
1785 fn get_participant_color(
1786 participant_index: Option<ParticipantIndex>,
1787 cx: &WindowContext,
1788 ) -> PlayerColor {
1789 if let Some(index) = participant_index {
1790 cx.theme().players().color_for_participant(index.0)
1791 } else {
1792 cx.theme().players().absent()
1793 }
1794 }
1795
1796 fn calculate_relative_line_numbers(
1797 &self,
1798 snapshot: &EditorSnapshot,
1799 rows: &Range<DisplayRow>,
1800 relative_to: Option<DisplayRow>,
1801 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1802 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1803 let Some(relative_to) = relative_to else {
1804 return relative_rows;
1805 };
1806
1807 let start = rows.start.min(relative_to);
1808 let end = rows.end.max(relative_to);
1809
1810 let buffer_rows = snapshot
1811 .buffer_rows(start)
1812 .take(1 + end.minus(start) as usize)
1813 .collect::<Vec<_>>();
1814
1815 let head_idx = relative_to.minus(start);
1816 let mut delta = 1;
1817 let mut i = head_idx + 1;
1818 while i < buffer_rows.len() as u32 {
1819 if buffer_rows[i as usize].is_some() {
1820 if rows.contains(&DisplayRow(i + start.0)) {
1821 relative_rows.insert(DisplayRow(i + start.0), delta);
1822 }
1823 delta += 1;
1824 }
1825 i += 1;
1826 }
1827 delta = 1;
1828 i = head_idx.min(buffer_rows.len() as u32 - 1);
1829 while i > 0 && buffer_rows[i as usize].is_none() {
1830 i -= 1;
1831 }
1832
1833 while i > 0 {
1834 i -= 1;
1835 if buffer_rows[i as usize].is_some() {
1836 if rows.contains(&DisplayRow(i + start.0)) {
1837 relative_rows.insert(DisplayRow(i + start.0), delta);
1838 }
1839 delta += 1;
1840 }
1841 }
1842
1843 relative_rows
1844 }
1845
1846 fn layout_line_numbers(
1847 &self,
1848 rows: Range<DisplayRow>,
1849 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1850 active_rows: &BTreeMap<DisplayRow, bool>,
1851 newest_selection_head: Option<DisplayPoint>,
1852 snapshot: &EditorSnapshot,
1853 cx: &mut WindowContext,
1854 ) -> Vec<Option<ShapedLine>> {
1855 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
1856 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
1857 });
1858 if !include_line_numbers {
1859 return Vec::new();
1860 }
1861
1862 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
1863 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1864 let newest = editor.selections.newest::<Point>(cx);
1865 SelectionLayout::new(
1866 newest,
1867 editor.selections.line_mode,
1868 editor.cursor_shape,
1869 &snapshot.display_snapshot,
1870 true,
1871 true,
1872 None,
1873 )
1874 .head
1875 });
1876 let is_relative = editor.should_use_relative_line_numbers(cx);
1877 (newest_selection_head, is_relative)
1878 });
1879 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1880
1881 let relative_to = if is_relative {
1882 Some(newest_selection_head.row())
1883 } else {
1884 None
1885 };
1886 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1887 let mut line_number = String::new();
1888 buffer_rows
1889 .into_iter()
1890 .enumerate()
1891 .map(|(ix, multibuffer_row)| {
1892 let multibuffer_row = multibuffer_row?;
1893 let display_row = DisplayRow(rows.start.0 + ix as u32);
1894 let color = if active_rows.contains_key(&display_row) {
1895 cx.theme().colors().editor_active_line_number
1896 } else {
1897 cx.theme().colors().editor_line_number
1898 };
1899 line_number.clear();
1900 let default_number = multibuffer_row.0 + 1;
1901 let number = relative_rows
1902 .get(&DisplayRow(ix as u32 + rows.start.0))
1903 .unwrap_or(&default_number);
1904 write!(&mut line_number, "{number}").unwrap();
1905 let run = TextRun {
1906 len: line_number.len(),
1907 font: self.style.text.font(),
1908 color,
1909 background_color: None,
1910 underline: None,
1911 strikethrough: None,
1912 };
1913 let shaped_line = cx
1914 .text_system()
1915 .shape_line(line_number.clone().into(), font_size, &[run])
1916 .unwrap();
1917 Some(shaped_line)
1918 })
1919 .collect()
1920 }
1921
1922 fn layout_crease_toggles(
1923 &self,
1924 rows: Range<DisplayRow>,
1925 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1926 active_rows: &BTreeMap<DisplayRow, bool>,
1927 snapshot: &EditorSnapshot,
1928 cx: &mut WindowContext,
1929 ) -> Vec<Option<AnyElement>> {
1930 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
1931 && snapshot.mode == EditorMode::Full
1932 && self.editor.read(cx).is_singleton(cx);
1933 if include_fold_statuses {
1934 buffer_rows
1935 .into_iter()
1936 .enumerate()
1937 .map(|(ix, row)| {
1938 if let Some(multibuffer_row) = row {
1939 let display_row = DisplayRow(rows.start.0 + ix as u32);
1940 let active = active_rows.contains_key(&display_row);
1941 snapshot.render_crease_toggle(
1942 multibuffer_row,
1943 active,
1944 self.editor.clone(),
1945 cx,
1946 )
1947 } else {
1948 None
1949 }
1950 })
1951 .collect()
1952 } else {
1953 Vec::new()
1954 }
1955 }
1956
1957 fn layout_crease_trailers(
1958 &self,
1959 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1960 snapshot: &EditorSnapshot,
1961 cx: &mut WindowContext,
1962 ) -> Vec<Option<AnyElement>> {
1963 buffer_rows
1964 .into_iter()
1965 .map(|row| {
1966 if let Some(multibuffer_row) = row {
1967 snapshot.render_crease_trailer(multibuffer_row, cx)
1968 } else {
1969 None
1970 }
1971 })
1972 .collect()
1973 }
1974
1975 fn layout_lines(
1976 rows: Range<DisplayRow>,
1977 snapshot: &EditorSnapshot,
1978 style: &EditorStyle,
1979 editor_width: Pixels,
1980 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
1981 cx: &mut WindowContext,
1982 ) -> Vec<LineWithInvisibles> {
1983 if rows.start >= rows.end {
1984 return Vec::new();
1985 }
1986
1987 // Show the placeholder when the editor is empty
1988 if snapshot.is_empty() {
1989 let font_size = style.text.font_size.to_pixels(cx.rem_size());
1990 let placeholder_color = cx.theme().colors().text_placeholder;
1991 let placeholder_text = snapshot.placeholder_text();
1992
1993 let placeholder_lines = placeholder_text
1994 .as_ref()
1995 .map_or("", AsRef::as_ref)
1996 .split('\n')
1997 .skip(rows.start.0 as usize)
1998 .chain(iter::repeat(""))
1999 .take(rows.len());
2000 placeholder_lines
2001 .filter_map(move |line| {
2002 let run = TextRun {
2003 len: line.len(),
2004 font: style.text.font(),
2005 color: placeholder_color,
2006 background_color: None,
2007 underline: Default::default(),
2008 strikethrough: None,
2009 };
2010 cx.text_system()
2011 .shape_line(line.to_string().into(), font_size, &[run])
2012 .log_err()
2013 })
2014 .map(|line| LineWithInvisibles {
2015 width: line.width,
2016 len: line.len,
2017 fragments: smallvec![LineFragment::Text(line)],
2018 invisibles: Vec::new(),
2019 font_size,
2020 })
2021 .collect()
2022 } else {
2023 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2024 LineWithInvisibles::from_chunks(
2025 chunks,
2026 &style,
2027 MAX_LINE_LEN,
2028 rows.len(),
2029 snapshot.mode,
2030 editor_width,
2031 is_row_soft_wrapped,
2032 cx,
2033 )
2034 }
2035 }
2036
2037 fn prepaint_lines(
2038 &self,
2039 start_row: DisplayRow,
2040 line_layouts: &mut [LineWithInvisibles],
2041 line_height: Pixels,
2042 scroll_pixel_position: gpui::Point<Pixels>,
2043 content_origin: gpui::Point<Pixels>,
2044 cx: &mut WindowContext,
2045 ) -> SmallVec<[AnyElement; 1]> {
2046 let mut line_elements = SmallVec::new();
2047 for (ix, line) in line_layouts.iter_mut().enumerate() {
2048 let row = start_row + DisplayRow(ix as u32);
2049 line.prepaint(
2050 line_height,
2051 scroll_pixel_position,
2052 row,
2053 content_origin,
2054 &mut line_elements,
2055 cx,
2056 );
2057 }
2058 line_elements
2059 }
2060
2061 #[allow(clippy::too_many_arguments)]
2062 fn render_block(
2063 &self,
2064 block: &Block,
2065 available_width: AvailableSpace,
2066 block_id: BlockId,
2067 block_row_start: DisplayRow,
2068 snapshot: &EditorSnapshot,
2069 text_x: Pixels,
2070 rows: &Range<DisplayRow>,
2071 line_layouts: &[LineWithInvisibles],
2072 gutter_dimensions: &GutterDimensions,
2073 line_height: Pixels,
2074 em_width: Pixels,
2075 text_hitbox: &Hitbox,
2076 editor_width: Pixels,
2077 scroll_width: &mut Pixels,
2078 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2079 selections: &[Selection<Point>],
2080 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2081 cx: &mut WindowContext,
2082 ) -> (AnyElement, Size<Pixels>) {
2083 let mut element = match block {
2084 Block::Custom(block) => {
2085 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2086 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2087 let align_to = block_start.to_display_point(snapshot);
2088 let anchor_x = text_x
2089 + if rows.contains(&align_to.row()) {
2090 line_layouts[align_to.row().minus(rows.start) as usize]
2091 .x_for_index(align_to.column() as usize)
2092 } else {
2093 layout_line(
2094 align_to.row(),
2095 snapshot,
2096 &self.style,
2097 editor_width,
2098 is_row_soft_wrapped,
2099 cx,
2100 )
2101 .x_for_index(align_to.column() as usize)
2102 };
2103
2104 let selected = selections
2105 .binary_search_by(|selection| {
2106 if selection.end <= block_start {
2107 Ordering::Less
2108 } else if selection.start >= block_end {
2109 Ordering::Greater
2110 } else {
2111 Ordering::Equal
2112 }
2113 })
2114 .is_ok();
2115
2116 div()
2117 .size_full()
2118 .child(block.render(&mut BlockContext {
2119 context: cx,
2120 anchor_x,
2121 gutter_dimensions,
2122 line_height,
2123 em_width,
2124 block_id,
2125 selected,
2126 max_width: text_hitbox.size.width.max(*scroll_width),
2127 editor_style: &self.style,
2128 }))
2129 .into_any()
2130 }
2131
2132 Block::ExcerptBoundary {
2133 prev_excerpt,
2134 next_excerpt,
2135 show_excerpt_controls,
2136 starts_new_buffer,
2137 height,
2138 ..
2139 } => {
2140 let icon_offset = gutter_dimensions.width
2141 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2142
2143 let header_padding = px(6.0);
2144
2145 let mut result = v_flex().id(block_id).w_full();
2146
2147 if let Some(prev_excerpt) = prev_excerpt {
2148 if *show_excerpt_controls {
2149 result = result.child(
2150 h_flex()
2151 .w(icon_offset)
2152 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2153 .flex_none()
2154 .justify_end()
2155 .child(self.render_expand_excerpt_button(
2156 prev_excerpt.id,
2157 ExpandExcerptDirection::Down,
2158 IconName::ArrowDownFromLine,
2159 cx,
2160 )),
2161 );
2162 }
2163 }
2164
2165 if let Some(next_excerpt) = next_excerpt {
2166 let buffer = &next_excerpt.buffer;
2167 let range = &next_excerpt.range;
2168 let jump_data = {
2169 let jump_path =
2170 project::File::from_dyn(buffer.file()).map(|file| ProjectPath {
2171 worktree_id: file.worktree_id(cx),
2172 path: file.path.clone(),
2173 });
2174 let jump_anchor = range
2175 .primary
2176 .as_ref()
2177 .map_or(range.context.start, |primary| primary.start);
2178
2179 let excerpt_start = range.context.start;
2180 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
2181 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
2182 0
2183 } else {
2184 let excerpt_start_row =
2185 language::ToPoint::to_point(&jump_anchor, buffer).row;
2186 jump_position.row - excerpt_start_row
2187 };
2188 let line_offset_from_top =
2189 block_row_start.0 + *height + offset_from_excerpt_start
2190 - snapshot
2191 .scroll_anchor
2192 .scroll_position(&snapshot.display_snapshot)
2193 .y as u32;
2194 JumpData {
2195 excerpt_id: next_excerpt.id,
2196 anchor: jump_anchor,
2197 position: language::ToPoint::to_point(&jump_anchor, buffer),
2198 path: jump_path,
2199 line_offset_from_top,
2200 }
2201 };
2202
2203 if *starts_new_buffer {
2204 let include_root = self
2205 .editor
2206 .read(cx)
2207 .project
2208 .as_ref()
2209 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2210 .unwrap_or_default();
2211 let path = buffer.resolve_file_path(cx, include_root);
2212 let filename = path
2213 .as_ref()
2214 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2215 let parent_path = path.as_ref().and_then(|path| {
2216 Some(path.parent()?.to_string_lossy().to_string() + "/")
2217 });
2218
2219 result = result.child(
2220 div()
2221 .px(header_padding)
2222 .pt(header_padding)
2223 .w_full()
2224 .h(FILE_HEADER_HEIGHT as f32 * cx.line_height())
2225 .child(
2226 h_flex()
2227 .id("path header block")
2228 .size_full()
2229 .flex_basis(Length::Definite(DefiniteLength::Fraction(
2230 0.667,
2231 )))
2232 .px(gpui::px(12.))
2233 .rounded_md()
2234 .shadow_md()
2235 .border_1()
2236 .border_color(cx.theme().colors().border)
2237 .bg(cx.theme().colors().editor_subheader_background)
2238 .justify_between()
2239 .hover(|style| style.bg(cx.theme().colors().element_hover))
2240 .child(
2241 h_flex().gap_3().child(
2242 h_flex()
2243 .gap_2()
2244 .child(
2245 filename
2246 .map(SharedString::from)
2247 .unwrap_or_else(|| "untitled".into()),
2248 )
2249 .when_some(parent_path, |then, path| {
2250 then.child(div().child(path).text_color(
2251 cx.theme().colors().text_muted,
2252 ))
2253 }),
2254 ),
2255 )
2256 .child(Icon::new(IconName::ArrowUpRight))
2257 .cursor_pointer()
2258 .tooltip(|cx| {
2259 Tooltip::for_action("Jump to File", &OpenExcerpts, cx)
2260 })
2261 .on_mouse_down(MouseButton::Left, |_, cx| {
2262 cx.stop_propagation()
2263 })
2264 .on_click(cx.listener_for(&self.editor, {
2265 move |editor, e: &ClickEvent, cx| {
2266 editor.open_excerpts_common(
2267 Some(jump_data.clone()),
2268 e.down.modifiers.secondary(),
2269 cx,
2270 );
2271 }
2272 })),
2273 ),
2274 );
2275 if *show_excerpt_controls {
2276 result = result.child(
2277 h_flex()
2278 .w(icon_offset)
2279 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2280 .flex_none()
2281 .justify_end()
2282 .child(self.render_expand_excerpt_button(
2283 next_excerpt.id,
2284 ExpandExcerptDirection::Up,
2285 IconName::ArrowUpFromLine,
2286 cx,
2287 )),
2288 );
2289 }
2290 } else {
2291 let editor = self.editor.clone();
2292 result = result.child(
2293 h_flex()
2294 .id("excerpt header block")
2295 .group("excerpt-jump-action")
2296 .justify_start()
2297 .w_full()
2298 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2299 .relative()
2300 .child(
2301 div()
2302 .top(px(0.))
2303 .absolute()
2304 .w_full()
2305 .h_px()
2306 .bg(cx.theme().colors().border_variant)
2307 .group_hover("excerpt-jump-action", |style| {
2308 style.bg(cx.theme().colors().border)
2309 }),
2310 )
2311 .cursor_pointer()
2312 .on_click({
2313 let jump_data = jump_data.clone();
2314 cx.listener_for(&self.editor, {
2315 let jump_data = jump_data.clone();
2316 move |editor, e: &ClickEvent, cx| {
2317 cx.stop_propagation();
2318 editor.open_excerpts_common(
2319 Some(jump_data.clone()),
2320 e.down.modifiers.secondary(),
2321 cx,
2322 );
2323 }
2324 })
2325 })
2326 .tooltip({
2327 let jump_data = jump_data.clone();
2328 move |cx| {
2329 let jump_message = format!(
2330 "Jump to {}:L{}",
2331 match &jump_data.path {
2332 Some(project_path) =>
2333 project_path.path.display().to_string(),
2334 None => {
2335 let editor = editor.read(cx);
2336 editor
2337 .file_at(jump_data.position, cx)
2338 .map(|file| {
2339 file.full_path(cx).display().to_string()
2340 })
2341 .or_else(|| {
2342 Some(
2343 editor
2344 .tab_description(0, cx)?
2345 .to_string(),
2346 )
2347 })
2348 .unwrap_or_else(|| {
2349 "Unknown buffer".to_string()
2350 })
2351 }
2352 },
2353 jump_data.position.row + 1
2354 );
2355 Tooltip::for_action(jump_message, &OpenExcerpts, cx)
2356 }
2357 })
2358 .child(
2359 h_flex()
2360 .w(icon_offset)
2361 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2362 * cx.line_height())
2363 .flex_none()
2364 .justify_end()
2365 .child(if *show_excerpt_controls {
2366 self.render_expand_excerpt_button(
2367 next_excerpt.id,
2368 ExpandExcerptDirection::Up,
2369 IconName::ArrowUpFromLine,
2370 cx,
2371 )
2372 } else {
2373 ButtonLike::new("jump-icon")
2374 .style(ButtonStyle::Transparent)
2375 .child(
2376 svg()
2377 .path(IconName::ArrowUpRight.path())
2378 .size(IconSize::XSmall.rems())
2379 .text_color(
2380 cx.theme().colors().border_variant,
2381 )
2382 .group_hover(
2383 "excerpt-jump-action",
2384 |style| {
2385 style.text_color(
2386 cx.theme().colors().border,
2387 )
2388 },
2389 ),
2390 )
2391 }),
2392 ),
2393 );
2394 }
2395 }
2396
2397 result.into_any()
2398 }
2399 };
2400
2401 // Discover the element's content height, then round up to the nearest multiple of line height.
2402 let preliminary_size =
2403 element.layout_as_root(size(available_width, AvailableSpace::MinContent), cx);
2404 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2405 let final_size = if preliminary_size.height == quantized_height {
2406 preliminary_size
2407 } else {
2408 element.layout_as_root(size(available_width, quantized_height.into()), cx)
2409 };
2410
2411 if let BlockId::Custom(custom_block_id) = block_id {
2412 if block.height() > 0 {
2413 let element_height_in_lines =
2414 ((final_size.height / line_height).ceil() as u32).max(1);
2415 if element_height_in_lines != block.height() {
2416 resized_blocks.insert(custom_block_id, element_height_in_lines);
2417 }
2418 }
2419 }
2420
2421 (element, final_size)
2422 }
2423
2424 fn render_expand_excerpt_button(
2425 &self,
2426 excerpt_id: ExcerptId,
2427 direction: ExpandExcerptDirection,
2428 icon: IconName,
2429 cx: &mut WindowContext,
2430 ) -> ButtonLike {
2431 ButtonLike::new("expand-icon")
2432 .style(ButtonStyle::Transparent)
2433 .child(
2434 svg()
2435 .path(icon.path())
2436 .size(IconSize::XSmall.rems())
2437 .text_color(cx.theme().colors().editor_line_number)
2438 .group("")
2439 .hover(|style| style.text_color(cx.theme().colors().editor_active_line_number)),
2440 )
2441 .on_click(cx.listener_for(&self.editor, {
2442 move |editor, _, cx| {
2443 editor.expand_excerpt(excerpt_id, direction, cx);
2444 }
2445 }))
2446 .tooltip({
2447 move |cx| Tooltip::for_action("Expand Excerpt", &ExpandExcerpts { lines: 0 }, cx)
2448 })
2449 }
2450
2451 #[allow(clippy::too_many_arguments)]
2452 fn render_blocks(
2453 &self,
2454 rows: Range<DisplayRow>,
2455 snapshot: &EditorSnapshot,
2456 hitbox: &Hitbox,
2457 text_hitbox: &Hitbox,
2458 editor_width: Pixels,
2459 scroll_width: &mut Pixels,
2460 gutter_dimensions: &GutterDimensions,
2461 em_width: Pixels,
2462 text_x: Pixels,
2463 line_height: Pixels,
2464 line_layouts: &[LineWithInvisibles],
2465 selections: &[Selection<Point>],
2466 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2467 cx: &mut WindowContext,
2468 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2469 let (fixed_blocks, non_fixed_blocks) = snapshot
2470 .blocks_in_range(rows.clone())
2471 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2472
2473 let mut focused_block = self
2474 .editor
2475 .update(cx, |editor, _| editor.take_focused_block());
2476 let mut fixed_block_max_width = Pixels::ZERO;
2477 let mut blocks = Vec::new();
2478 let mut resized_blocks = HashMap::default();
2479
2480 for (row, block) in fixed_blocks {
2481 let block_id = block.id();
2482
2483 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2484 focused_block = None;
2485 }
2486
2487 let (element, element_size) = self.render_block(
2488 block,
2489 AvailableSpace::MinContent,
2490 block_id,
2491 row,
2492 snapshot,
2493 text_x,
2494 &rows,
2495 line_layouts,
2496 gutter_dimensions,
2497 line_height,
2498 em_width,
2499 text_hitbox,
2500 editor_width,
2501 scroll_width,
2502 &mut resized_blocks,
2503 selections,
2504 is_row_soft_wrapped,
2505 cx,
2506 );
2507 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2508 blocks.push(BlockLayout {
2509 id: block_id,
2510 row: Some(row),
2511 element,
2512 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2513 style: BlockStyle::Fixed,
2514 });
2515 }
2516 for (row, block) in non_fixed_blocks {
2517 let style = block.style();
2518 let width = match style {
2519 BlockStyle::Sticky => hitbox.size.width,
2520 BlockStyle::Flex => hitbox
2521 .size
2522 .width
2523 .max(fixed_block_max_width)
2524 .max(gutter_dimensions.width + *scroll_width),
2525 BlockStyle::Fixed => unreachable!(),
2526 };
2527 let block_id = block.id();
2528
2529 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2530 focused_block = None;
2531 }
2532
2533 let (element, element_size) = self.render_block(
2534 block,
2535 width.into(),
2536 block_id,
2537 row,
2538 snapshot,
2539 text_x,
2540 &rows,
2541 line_layouts,
2542 gutter_dimensions,
2543 line_height,
2544 em_width,
2545 text_hitbox,
2546 editor_width,
2547 scroll_width,
2548 &mut resized_blocks,
2549 selections,
2550 is_row_soft_wrapped,
2551 cx,
2552 );
2553
2554 blocks.push(BlockLayout {
2555 id: block_id,
2556 row: Some(row),
2557 element,
2558 available_space: size(width.into(), element_size.height.into()),
2559 style,
2560 });
2561 }
2562
2563 if let Some(focused_block) = focused_block {
2564 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2565 if focus_handle.is_focused(cx) {
2566 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2567 let style = block.style();
2568 let width = match style {
2569 BlockStyle::Fixed => AvailableSpace::MinContent,
2570 BlockStyle::Flex => AvailableSpace::Definite(
2571 hitbox
2572 .size
2573 .width
2574 .max(fixed_block_max_width)
2575 .max(gutter_dimensions.width + *scroll_width),
2576 ),
2577 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2578 };
2579
2580 let (element, element_size) = self.render_block(
2581 &block,
2582 width,
2583 focused_block.id,
2584 rows.end,
2585 snapshot,
2586 text_x,
2587 &rows,
2588 line_layouts,
2589 gutter_dimensions,
2590 line_height,
2591 em_width,
2592 text_hitbox,
2593 editor_width,
2594 scroll_width,
2595 &mut resized_blocks,
2596 selections,
2597 is_row_soft_wrapped,
2598 cx,
2599 );
2600
2601 blocks.push(BlockLayout {
2602 id: block.id(),
2603 row: None,
2604 element,
2605 available_space: size(width, element_size.height.into()),
2606 style,
2607 });
2608 }
2609 }
2610 }
2611 }
2612
2613 if resized_blocks.is_empty() {
2614 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2615 Ok(blocks)
2616 } else {
2617 Err(resized_blocks)
2618 }
2619 }
2620
2621 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2622 /// a restart of rendering for the editor based on the new sizes.
2623 fn layout_blocks(
2624 &self,
2625 blocks: &mut Vec<BlockLayout>,
2626 block_starts: &mut HashSet<DisplayRow>,
2627 hitbox: &Hitbox,
2628 line_height: Pixels,
2629 scroll_pixel_position: gpui::Point<Pixels>,
2630 cx: &mut WindowContext,
2631 ) {
2632 for block in blocks {
2633 let mut origin = if let Some(row) = block.row {
2634 block_starts.insert(row);
2635 hitbox.origin
2636 + point(
2637 Pixels::ZERO,
2638 row.as_f32() * line_height - scroll_pixel_position.y,
2639 )
2640 } else {
2641 // Position the block outside the visible area
2642 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2643 };
2644
2645 if !matches!(block.style, BlockStyle::Sticky) {
2646 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2647 }
2648
2649 let focus_handle = block
2650 .element
2651 .prepaint_as_root(origin, block.available_space, cx);
2652
2653 if let Some(focus_handle) = focus_handle {
2654 self.editor.update(cx, |editor, _cx| {
2655 editor.set_focused_block(FocusedBlock {
2656 id: block.id,
2657 focus_handle: focus_handle.downgrade(),
2658 });
2659 });
2660 }
2661 }
2662 }
2663
2664 #[allow(clippy::too_many_arguments)]
2665 fn layout_context_menu(
2666 &self,
2667 line_height: Pixels,
2668 hitbox: &Hitbox,
2669 text_hitbox: &Hitbox,
2670 content_origin: gpui::Point<Pixels>,
2671 start_row: DisplayRow,
2672 scroll_pixel_position: gpui::Point<Pixels>,
2673 line_layouts: &[LineWithInvisibles],
2674 newest_selection_head: DisplayPoint,
2675 gutter_overshoot: Pixels,
2676 cx: &mut WindowContext,
2677 ) -> bool {
2678 let max_height = cmp::min(
2679 12. * line_height,
2680 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2681 );
2682 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2683 if editor.context_menu_visible() {
2684 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2685 } else {
2686 None
2687 }
2688 }) else {
2689 return false;
2690 };
2691
2692 let context_menu_size = context_menu.layout_as_root(AvailableSpace::min_size(), cx);
2693
2694 let (x, y) = match position {
2695 crate::ContextMenuOrigin::EditorPoint(point) => {
2696 let cursor_row_layout = &line_layouts[point.row().minus(start_row) as usize];
2697 let x = cursor_row_layout.x_for_index(point.column() as usize)
2698 - scroll_pixel_position.x;
2699 let y = point.row().next_row().as_f32() * line_height - scroll_pixel_position.y;
2700 (x, y)
2701 }
2702 crate::ContextMenuOrigin::GutterIndicator(row) => {
2703 // 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
2704 // text field.
2705 let x = -gutter_overshoot;
2706 let y = row.next_row().as_f32() * line_height - scroll_pixel_position.y;
2707 (x, y)
2708 }
2709 };
2710
2711 let mut list_origin = content_origin + point(x, y);
2712 let list_width = context_menu_size.width;
2713 let list_height = context_menu_size.height;
2714
2715 // Snap the right edge of the list to the right edge of the window if
2716 // its horizontal bounds overflow.
2717 if list_origin.x + list_width > cx.viewport_size().width {
2718 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2719 }
2720
2721 if list_origin.y + list_height > text_hitbox.lower_right().y {
2722 list_origin.y -= line_height + list_height;
2723 }
2724
2725 cx.defer_draw(context_menu, list_origin, 1);
2726 true
2727 }
2728
2729 fn layout_mouse_context_menu(
2730 &self,
2731 editor_snapshot: &EditorSnapshot,
2732 visible_range: Range<DisplayRow>,
2733 cx: &mut WindowContext,
2734 ) -> Option<AnyElement> {
2735 let position = self.editor.update(cx, |editor, cx| {
2736 let visible_start_point = editor.display_to_pixel_point(
2737 DisplayPoint::new(visible_range.start, 0),
2738 editor_snapshot,
2739 cx,
2740 )?;
2741 let visible_end_point = editor.display_to_pixel_point(
2742 DisplayPoint::new(visible_range.end, 0),
2743 editor_snapshot,
2744 cx,
2745 )?;
2746
2747 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
2748 let (source_display_point, position) = match mouse_context_menu.position {
2749 MenuPosition::PinnedToScreen(point) => (None, point),
2750 MenuPosition::PinnedToEditor {
2751 source,
2752 offset_x,
2753 offset_y,
2754 } => {
2755 let source_display_point = source.to_display_point(editor_snapshot);
2756 let mut source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
2757 source_point.x += offset_x;
2758 source_point.y += offset_y;
2759 (Some(source_display_point), source_point)
2760 }
2761 };
2762
2763 let source_included = source_display_point.map_or(true, |source_display_point| {
2764 visible_range
2765 .to_inclusive()
2766 .contains(&source_display_point.row())
2767 });
2768 let position_included =
2769 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
2770 if !source_included && !position_included {
2771 None
2772 } else {
2773 Some(position)
2774 }
2775 })?;
2776
2777 let mut element = self.editor.update(cx, |editor, _| {
2778 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
2779 let context_menu = mouse_context_menu.context_menu.clone();
2780
2781 Some(
2782 deferred(
2783 anchored()
2784 .position(position)
2785 .child(context_menu)
2786 .anchor(AnchorCorner::TopLeft)
2787 .snap_to_window_with_margin(px(8.)),
2788 )
2789 .with_priority(1)
2790 .into_any(),
2791 )
2792 })?;
2793
2794 element.prepaint_as_root(position, AvailableSpace::min_size(), cx);
2795 Some(element)
2796 }
2797
2798 #[allow(clippy::too_many_arguments)]
2799 fn layout_hover_popovers(
2800 &self,
2801 snapshot: &EditorSnapshot,
2802 hitbox: &Hitbox,
2803 text_hitbox: &Hitbox,
2804 visible_display_row_range: Range<DisplayRow>,
2805 content_origin: gpui::Point<Pixels>,
2806 scroll_pixel_position: gpui::Point<Pixels>,
2807 line_layouts: &[LineWithInvisibles],
2808 line_height: Pixels,
2809 em_width: Pixels,
2810 cx: &mut WindowContext,
2811 ) {
2812 struct MeasuredHoverPopover {
2813 element: AnyElement,
2814 size: Size<Pixels>,
2815 horizontal_offset: Pixels,
2816 }
2817
2818 let max_size = size(
2819 (120. * em_width) // Default size
2820 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2821 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2822 (16. * line_height) // Default size
2823 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2824 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2825 );
2826
2827 let hover_popovers = self.editor.update(cx, |editor, cx| {
2828 editor
2829 .hover_state
2830 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
2831 });
2832 let Some((position, hover_popovers)) = hover_popovers else {
2833 return;
2834 };
2835
2836 // This is safe because we check on layout whether the required row is available
2837 let hovered_row_layout =
2838 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
2839
2840 // Compute Hovered Point
2841 let x =
2842 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2843 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
2844 let hovered_point = content_origin + point(x, y);
2845
2846 let mut overall_height = Pixels::ZERO;
2847 let mut measured_hover_popovers = Vec::new();
2848 for mut hover_popover in hover_popovers {
2849 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), cx);
2850 let horizontal_offset =
2851 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2852
2853 overall_height += HOVER_POPOVER_GAP + size.height;
2854
2855 measured_hover_popovers.push(MeasuredHoverPopover {
2856 element: hover_popover,
2857 size,
2858 horizontal_offset,
2859 });
2860 }
2861 overall_height += HOVER_POPOVER_GAP;
2862
2863 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2864 let mut occlusion = div()
2865 .size_full()
2866 .occlude()
2867 .on_mouse_move(|_, cx| cx.stop_propagation())
2868 .into_any_element();
2869 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2870 cx.defer_draw(occlusion, origin, 2);
2871 }
2872
2873 if hovered_point.y > overall_height {
2874 // There is enough space above. Render popovers above the hovered point
2875 let mut current_y = hovered_point.y;
2876 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2877 let size = popover.size;
2878 let popover_origin = point(
2879 hovered_point.x + popover.horizontal_offset,
2880 current_y - size.height,
2881 );
2882
2883 cx.defer_draw(popover.element, popover_origin, 2);
2884 if position != itertools::Position::Last {
2885 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2886 draw_occluder(size.width, origin, cx);
2887 }
2888
2889 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2890 }
2891 } else {
2892 // There is not enough space above. Render popovers below the hovered point
2893 let mut current_y = hovered_point.y + line_height;
2894 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2895 let size = popover.size;
2896 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2897
2898 cx.defer_draw(popover.element, popover_origin, 2);
2899 if position != itertools::Position::Last {
2900 let origin = point(popover_origin.x, popover_origin.y + size.height);
2901 draw_occluder(size.width, origin, cx);
2902 }
2903
2904 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2905 }
2906 }
2907 }
2908
2909 #[allow(clippy::too_many_arguments)]
2910 fn layout_signature_help(
2911 &self,
2912 hitbox: &Hitbox,
2913 content_origin: gpui::Point<Pixels>,
2914 scroll_pixel_position: gpui::Point<Pixels>,
2915 newest_selection_head: Option<DisplayPoint>,
2916 start_row: DisplayRow,
2917 line_layouts: &[LineWithInvisibles],
2918 line_height: Pixels,
2919 em_width: Pixels,
2920 cx: &mut WindowContext,
2921 ) {
2922 if !self.editor.focus_handle(cx).is_focused(cx) {
2923 return;
2924 }
2925 let Some(newest_selection_head) = newest_selection_head else {
2926 return;
2927 };
2928 let selection_row = newest_selection_head.row();
2929 if selection_row < start_row {
2930 return;
2931 }
2932 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
2933 else {
2934 return;
2935 };
2936
2937 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
2938 - scroll_pixel_position.x
2939 + content_origin.x;
2940 let start_y =
2941 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
2942
2943 let max_size = size(
2944 (120. * em_width) // Default size
2945 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2946 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2947 (16. * line_height) // Default size
2948 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2949 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2950 );
2951
2952 let maybe_element = self.editor.update(cx, |editor, cx| {
2953 if let Some(popover) = editor.signature_help_state.popover_mut() {
2954 let element = popover.render(
2955 &self.style,
2956 max_size,
2957 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2958 cx,
2959 );
2960 Some(element)
2961 } else {
2962 None
2963 }
2964 });
2965 if let Some(mut element) = maybe_element {
2966 let window_size = cx.viewport_size();
2967 let size = element.layout_as_root(Size::<AvailableSpace>::default(), cx);
2968 let mut point = point(start_x, start_y - size.height);
2969
2970 // Adjusting to ensure the popover does not overflow in the X-axis direction.
2971 if point.x + size.width >= window_size.width {
2972 point.x = window_size.width - size.width;
2973 }
2974
2975 cx.defer_draw(element, point, 1)
2976 }
2977 }
2978
2979 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2980 cx.paint_layer(layout.hitbox.bounds, |cx| {
2981 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2982 let gutter_bg = cx.theme().colors().editor_gutter_background;
2983 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2984 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2985
2986 if let EditorMode::Full = layout.mode {
2987 let mut active_rows = layout.active_rows.iter().peekable();
2988 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2989 let mut end_row = start_row.0;
2990 while active_rows
2991 .peek()
2992 .map_or(false, |(active_row, has_selection)| {
2993 active_row.0 == end_row + 1
2994 && *has_selection == contains_non_empty_selection
2995 })
2996 {
2997 active_rows.next().unwrap();
2998 end_row += 1;
2999 }
3000
3001 if !contains_non_empty_selection {
3002 let highlight_h_range =
3003 match layout.position_map.snapshot.current_line_highlight {
3004 CurrentLineHighlight::Gutter => Some(Range {
3005 start: layout.hitbox.left(),
3006 end: layout.gutter_hitbox.right(),
3007 }),
3008 CurrentLineHighlight::Line => Some(Range {
3009 start: layout.text_hitbox.bounds.left(),
3010 end: layout.text_hitbox.bounds.right(),
3011 }),
3012 CurrentLineHighlight::All => Some(Range {
3013 start: layout.hitbox.left(),
3014 end: layout.hitbox.right(),
3015 }),
3016 CurrentLineHighlight::None => None,
3017 };
3018 if let Some(range) = highlight_h_range {
3019 let active_line_bg = cx.theme().colors().editor_active_line_background;
3020 let bounds = Bounds {
3021 origin: point(
3022 range.start,
3023 layout.hitbox.origin.y
3024 + (start_row.as_f32() - scroll_top)
3025 * layout.position_map.line_height,
3026 ),
3027 size: size(
3028 range.end - range.start,
3029 layout.position_map.line_height
3030 * (end_row - start_row.0 + 1) as f32,
3031 ),
3032 };
3033 cx.paint_quad(fill(bounds, active_line_bg));
3034 }
3035 }
3036 }
3037
3038 let mut paint_highlight =
3039 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3040 let origin = point(
3041 layout.hitbox.origin.x,
3042 layout.hitbox.origin.y
3043 + (highlight_row_start.as_f32() - scroll_top)
3044 * layout.position_map.line_height,
3045 );
3046 let size = size(
3047 layout.hitbox.size.width,
3048 layout.position_map.line_height
3049 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3050 );
3051 cx.paint_quad(fill(Bounds { origin, size }, color));
3052 };
3053
3054 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
3055 for (&new_row, &new_color) in &layout.highlighted_rows {
3056 match &mut current_paint {
3057 Some((current_color, current_range)) => {
3058 let current_color = *current_color;
3059 let new_range_started = current_color != new_color
3060 || current_range.end.next_row() != new_row;
3061 if new_range_started {
3062 paint_highlight(
3063 current_range.start,
3064 current_range.end,
3065 current_color,
3066 );
3067 current_paint = Some((new_color, new_row..new_row));
3068 continue;
3069 } else {
3070 current_range.end = current_range.end.next_row();
3071 }
3072 }
3073 None => current_paint = Some((new_color, new_row..new_row)),
3074 };
3075 }
3076 if let Some((color, range)) = current_paint {
3077 paint_highlight(range.start, range.end, color);
3078 }
3079
3080 let scroll_left =
3081 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
3082
3083 for (wrap_position, active) in layout.wrap_guides.iter() {
3084 let x = (layout.text_hitbox.origin.x
3085 + *wrap_position
3086 + layout.position_map.em_width / 2.)
3087 - scroll_left;
3088
3089 let show_scrollbars = layout
3090 .scrollbar_layout
3091 .as_ref()
3092 .map_or(false, |scrollbar| scrollbar.visible);
3093 if x < layout.text_hitbox.origin.x
3094 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
3095 {
3096 continue;
3097 }
3098
3099 let color = if *active {
3100 cx.theme().colors().editor_active_wrap_guide
3101 } else {
3102 cx.theme().colors().editor_wrap_guide
3103 };
3104 cx.paint_quad(fill(
3105 Bounds {
3106 origin: point(x, layout.text_hitbox.origin.y),
3107 size: size(px(1.), layout.text_hitbox.size.height),
3108 },
3109 color,
3110 ));
3111 }
3112 }
3113 })
3114 }
3115
3116 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3117 let Some(indent_guides) = &layout.indent_guides else {
3118 return;
3119 };
3120
3121 let faded_color = |color: Hsla, alpha: f32| {
3122 let mut faded = color;
3123 faded.a = alpha;
3124 faded
3125 };
3126
3127 for indent_guide in indent_guides {
3128 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
3129 let settings = indent_guide.settings;
3130
3131 // TODO fixed for now, expose them through themes later
3132 const INDENT_AWARE_ALPHA: f32 = 0.2;
3133 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
3134 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
3135 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
3136
3137 let line_color = match (settings.coloring, indent_guide.active) {
3138 (IndentGuideColoring::Disabled, _) => None,
3139 (IndentGuideColoring::Fixed, false) => {
3140 Some(cx.theme().colors().editor_indent_guide)
3141 }
3142 (IndentGuideColoring::Fixed, true) => {
3143 Some(cx.theme().colors().editor_indent_guide_active)
3144 }
3145 (IndentGuideColoring::IndentAware, false) => {
3146 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
3147 }
3148 (IndentGuideColoring::IndentAware, true) => {
3149 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
3150 }
3151 };
3152
3153 let background_color = match (settings.background_coloring, indent_guide.active) {
3154 (IndentGuideBackgroundColoring::Disabled, _) => None,
3155 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
3156 indent_accent_colors,
3157 INDENT_AWARE_BACKGROUND_ALPHA,
3158 )),
3159 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
3160 indent_accent_colors,
3161 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
3162 )),
3163 };
3164
3165 let requested_line_width = if indent_guide.active {
3166 settings.active_line_width
3167 } else {
3168 settings.line_width
3169 }
3170 .clamp(1, 10);
3171 let mut line_indicator_width = 0.;
3172 if let Some(color) = line_color {
3173 cx.paint_quad(fill(
3174 Bounds {
3175 origin: indent_guide.origin,
3176 size: size(px(requested_line_width as f32), indent_guide.length),
3177 },
3178 color,
3179 ));
3180 line_indicator_width = requested_line_width as f32;
3181 }
3182
3183 if let Some(color) = background_color {
3184 let width = indent_guide.single_indent_width - px(line_indicator_width);
3185 cx.paint_quad(fill(
3186 Bounds {
3187 origin: point(
3188 indent_guide.origin.x + px(line_indicator_width),
3189 indent_guide.origin.y,
3190 ),
3191 size: size(width, indent_guide.length),
3192 },
3193 color,
3194 ));
3195 }
3196 }
3197 }
3198
3199 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3200 let line_height = layout.position_map.line_height;
3201 let scroll_position = layout.position_map.snapshot.scroll_position();
3202 let scroll_top = scroll_position.y * line_height;
3203
3204 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
3205
3206 for (ix, line) in layout.line_numbers.iter().enumerate() {
3207 if let Some(line) = line {
3208 let line_origin = layout.gutter_hitbox.origin
3209 + point(
3210 layout.gutter_hitbox.size.width
3211 - line.width
3212 - layout.gutter_dimensions.right_padding,
3213 ix as f32 * line_height - (scroll_top % line_height),
3214 );
3215
3216 line.paint(line_origin, line_height, cx).log_err();
3217 }
3218 }
3219 }
3220
3221 fn paint_diff_hunks(layout: &mut EditorLayout, cx: &mut WindowContext) {
3222 if layout.display_hunks.is_empty() {
3223 return;
3224 }
3225
3226 let line_height = layout.position_map.line_height;
3227 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3228 for (hunk, hitbox) in &layout.display_hunks {
3229 let hunk_to_paint = match hunk {
3230 DisplayDiffHunk::Folded { .. } => {
3231 let hunk_bounds = Self::diff_hunk_bounds(
3232 &layout.position_map.snapshot,
3233 line_height,
3234 layout.gutter_hitbox.bounds,
3235 hunk,
3236 );
3237 Some((
3238 hunk_bounds,
3239 cx.theme().status().modified,
3240 Corners::all(px(0.)),
3241 ))
3242 }
3243 DisplayDiffHunk::Unfolded { status, .. } => {
3244 hitbox.as_ref().map(|hunk_hitbox| match status {
3245 DiffHunkStatus::Added => (
3246 hunk_hitbox.bounds,
3247 cx.theme().status().created,
3248 Corners::all(px(0.)),
3249 ),
3250 DiffHunkStatus::Modified => (
3251 hunk_hitbox.bounds,
3252 cx.theme().status().modified,
3253 Corners::all(px(0.)),
3254 ),
3255 DiffHunkStatus::Removed => (
3256 Bounds::new(
3257 point(
3258 hunk_hitbox.origin.x - hunk_hitbox.size.width,
3259 hunk_hitbox.origin.y,
3260 ),
3261 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
3262 ),
3263 cx.theme().status().deleted,
3264 Corners::all(1. * line_height),
3265 ),
3266 })
3267 }
3268 };
3269
3270 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
3271 cx.paint_quad(quad(
3272 hunk_bounds,
3273 corner_radii,
3274 background_color,
3275 Edges::default(),
3276 transparent_black(),
3277 ));
3278 }
3279 }
3280 });
3281 }
3282
3283 pub(super) fn diff_hunk_bounds(
3284 snapshot: &EditorSnapshot,
3285 line_height: Pixels,
3286 gutter_bounds: Bounds<Pixels>,
3287 hunk: &DisplayDiffHunk,
3288 ) -> Bounds<Pixels> {
3289 let scroll_position = snapshot.scroll_position();
3290 let scroll_top = scroll_position.y * line_height;
3291
3292 match hunk {
3293 DisplayDiffHunk::Folded { display_row, .. } => {
3294 let start_y = display_row.as_f32() * line_height - scroll_top;
3295 let end_y = start_y + line_height;
3296
3297 let width = Self::diff_hunk_strip_width(line_height);
3298 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3299 let highlight_size = size(width, end_y - start_y);
3300 Bounds::new(highlight_origin, highlight_size)
3301 }
3302 DisplayDiffHunk::Unfolded {
3303 display_row_range,
3304 status,
3305 ..
3306 } => match status {
3307 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
3308 let start_row = display_row_range.start;
3309 let end_row = display_row_range.end;
3310 // If we're in a multibuffer, row range span might include an
3311 // excerpt header, so if we were to draw the marker straight away,
3312 // the hunk might include the rows of that header.
3313 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
3314 // Instead, we simply check whether the range we're dealing with includes
3315 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
3316 let end_row_in_current_excerpt = snapshot
3317 .blocks_in_range(start_row..end_row)
3318 .find_map(|(start_row, block)| {
3319 if matches!(block, Block::ExcerptBoundary { .. }) {
3320 Some(start_row)
3321 } else {
3322 None
3323 }
3324 })
3325 .unwrap_or(end_row);
3326
3327 let start_y = start_row.as_f32() * line_height - scroll_top;
3328 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
3329
3330 let width = Self::diff_hunk_strip_width(line_height);
3331 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3332 let highlight_size = size(width, end_y - start_y);
3333 Bounds::new(highlight_origin, highlight_size)
3334 }
3335 DiffHunkStatus::Removed => {
3336 let row = display_row_range.start;
3337
3338 let offset = line_height / 2.;
3339 let start_y = row.as_f32() * line_height - offset - scroll_top;
3340 let end_y = start_y + line_height;
3341
3342 let width = (0.35 * line_height).floor();
3343 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3344 let highlight_size = size(width, end_y - start_y);
3345 Bounds::new(highlight_origin, highlight_size)
3346 }
3347 },
3348 }
3349 }
3350
3351 /// Returns the width of the diff strip that will be displayed in the gutter.
3352 pub(super) fn diff_hunk_strip_width(line_height: Pixels) -> Pixels {
3353 // We floor the value to prevent pixel rounding.
3354 (0.275 * line_height).floor()
3355 }
3356
3357 fn paint_gutter_indicators(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3358 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3359 cx.with_element_namespace("crease_toggles", |cx| {
3360 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
3361 crease_toggle.paint(cx);
3362 }
3363 });
3364
3365 for test_indicator in layout.test_indicators.iter_mut() {
3366 test_indicator.paint(cx);
3367 }
3368
3369 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
3370 indicator.paint(cx);
3371 }
3372 });
3373 }
3374
3375 fn paint_gutter_highlights(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3376 for (_, hunk_hitbox) in &layout.display_hunks {
3377 if let Some(hunk_hitbox) = hunk_hitbox {
3378 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
3379 }
3380 }
3381
3382 let show_git_gutter = layout
3383 .position_map
3384 .snapshot
3385 .show_git_diff_gutter
3386 .unwrap_or_else(|| {
3387 matches!(
3388 ProjectSettings::get_global(cx).git.git_gutter,
3389 Some(GitGutterSetting::TrackedFiles)
3390 )
3391 });
3392 if show_git_gutter {
3393 Self::paint_diff_hunks(layout, cx)
3394 }
3395
3396 let highlight_width = 0.275 * layout.position_map.line_height;
3397 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
3398 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3399 for (range, color) in &layout.highlighted_gutter_ranges {
3400 let start_row = if range.start.row() < layout.visible_display_row_range.start {
3401 layout.visible_display_row_range.start - DisplayRow(1)
3402 } else {
3403 range.start.row()
3404 };
3405 let end_row = if range.end.row() > layout.visible_display_row_range.end {
3406 layout.visible_display_row_range.end + DisplayRow(1)
3407 } else {
3408 range.end.row()
3409 };
3410
3411 let start_y = layout.gutter_hitbox.top()
3412 + start_row.0 as f32 * layout.position_map.line_height
3413 - layout.position_map.scroll_pixel_position.y;
3414 let end_y = layout.gutter_hitbox.top()
3415 + (end_row.0 + 1) as f32 * layout.position_map.line_height
3416 - layout.position_map.scroll_pixel_position.y;
3417 let bounds = Bounds::from_corners(
3418 point(layout.gutter_hitbox.left(), start_y),
3419 point(layout.gutter_hitbox.left() + highlight_width, end_y),
3420 );
3421 cx.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
3422 }
3423 });
3424 }
3425
3426 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3427 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
3428 return;
3429 };
3430
3431 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3432 for mut blame_element in blamed_display_rows.into_iter() {
3433 blame_element.paint(cx);
3434 }
3435 })
3436 }
3437
3438 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3439 cx.with_content_mask(
3440 Some(ContentMask {
3441 bounds: layout.text_hitbox.bounds,
3442 }),
3443 |cx| {
3444 let cursor_style = if self
3445 .editor
3446 .read(cx)
3447 .hovered_link_state
3448 .as_ref()
3449 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
3450 {
3451 CursorStyle::PointingHand
3452 } else {
3453 CursorStyle::IBeam
3454 };
3455 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
3456
3457 let invisible_display_ranges = self.paint_highlights(layout, cx);
3458 self.paint_lines(&invisible_display_ranges, layout, cx);
3459 self.paint_redactions(layout, cx);
3460 self.paint_cursors(layout, cx);
3461 self.paint_inline_blame(layout, cx);
3462 cx.with_element_namespace("crease_trailers", |cx| {
3463 for trailer in layout.crease_trailers.iter_mut().flatten() {
3464 trailer.element.paint(cx);
3465 }
3466 });
3467 },
3468 )
3469 }
3470
3471 fn paint_highlights(
3472 &mut self,
3473 layout: &mut EditorLayout,
3474 cx: &mut WindowContext,
3475 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
3476 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3477 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
3478 let line_end_overshoot = 0.15 * layout.position_map.line_height;
3479 for (range, color) in &layout.highlighted_ranges {
3480 self.paint_highlighted_range(
3481 range.clone(),
3482 *color,
3483 Pixels::ZERO,
3484 line_end_overshoot,
3485 layout,
3486 cx,
3487 );
3488 }
3489
3490 let corner_radius = 0.15 * layout.position_map.line_height;
3491
3492 for (player_color, selections) in &layout.selections {
3493 for selection in selections.iter() {
3494 self.paint_highlighted_range(
3495 selection.range.clone(),
3496 player_color.selection,
3497 corner_radius,
3498 corner_radius * 2.,
3499 layout,
3500 cx,
3501 );
3502
3503 if selection.is_local && !selection.range.is_empty() {
3504 invisible_display_ranges.push(selection.range.clone());
3505 }
3506 }
3507 }
3508 invisible_display_ranges
3509 })
3510 }
3511
3512 fn paint_lines(
3513 &mut self,
3514 invisible_display_ranges: &[Range<DisplayPoint>],
3515 layout: &mut EditorLayout,
3516 cx: &mut WindowContext,
3517 ) {
3518 let whitespace_setting = self
3519 .editor
3520 .read(cx)
3521 .buffer
3522 .read(cx)
3523 .settings_at(0, cx)
3524 .show_whitespaces;
3525
3526 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
3527 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
3528 line_with_invisibles.draw(
3529 layout,
3530 row,
3531 layout.content_origin,
3532 whitespace_setting,
3533 invisible_display_ranges,
3534 cx,
3535 )
3536 }
3537
3538 for line_element in &mut layout.line_elements {
3539 line_element.paint(cx);
3540 }
3541 }
3542
3543 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3544 if layout.redacted_ranges.is_empty() {
3545 return;
3546 }
3547
3548 let line_end_overshoot = layout.line_end_overshoot();
3549
3550 // A softer than perfect black
3551 let redaction_color = gpui::rgb(0x0e1111);
3552
3553 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3554 for range in layout.redacted_ranges.iter() {
3555 self.paint_highlighted_range(
3556 range.clone(),
3557 redaction_color.into(),
3558 Pixels::ZERO,
3559 line_end_overshoot,
3560 layout,
3561 cx,
3562 );
3563 }
3564 });
3565 }
3566
3567 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3568 for cursor in &mut layout.visible_cursors {
3569 cursor.paint(layout.content_origin, cx);
3570 }
3571 }
3572
3573 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3574 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
3575 return;
3576 };
3577
3578 let thumb_bounds = scrollbar_layout.thumb_bounds();
3579 if scrollbar_layout.visible {
3580 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
3581 cx.paint_quad(quad(
3582 scrollbar_layout.hitbox.bounds,
3583 Corners::default(),
3584 cx.theme().colors().scrollbar_track_background,
3585 Edges {
3586 top: Pixels::ZERO,
3587 right: Pixels::ZERO,
3588 bottom: Pixels::ZERO,
3589 left: ScrollbarLayout::BORDER_WIDTH,
3590 },
3591 cx.theme().colors().scrollbar_track_border,
3592 ));
3593
3594 let fast_markers =
3595 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
3596 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
3597 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
3598
3599 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
3600 for marker in markers.iter().chain(&fast_markers) {
3601 let mut marker = marker.clone();
3602 marker.bounds.origin += scrollbar_layout.hitbox.origin;
3603 cx.paint_quad(marker);
3604 }
3605
3606 cx.paint_quad(quad(
3607 thumb_bounds,
3608 Corners::default(),
3609 cx.theme().colors().scrollbar_thumb_background,
3610 Edges {
3611 top: Pixels::ZERO,
3612 right: Pixels::ZERO,
3613 bottom: Pixels::ZERO,
3614 left: ScrollbarLayout::BORDER_WIDTH,
3615 },
3616 cx.theme().colors().scrollbar_thumb_border,
3617 ));
3618 });
3619 }
3620
3621 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
3622
3623 let row_height = scrollbar_layout.row_height;
3624 let row_range = scrollbar_layout.visible_row_range.clone();
3625
3626 cx.on_mouse_event({
3627 let editor = self.editor.clone();
3628 let hitbox = scrollbar_layout.hitbox.clone();
3629 let mut mouse_position = cx.mouse_position();
3630 move |event: &MouseMoveEvent, phase, cx| {
3631 if phase == DispatchPhase::Capture {
3632 return;
3633 }
3634
3635 editor.update(cx, |editor, cx| {
3636 if event.pressed_button == Some(MouseButton::Left)
3637 && editor.scroll_manager.is_dragging_scrollbar()
3638 {
3639 let y = mouse_position.y;
3640 let new_y = event.position.y;
3641 if (hitbox.top()..hitbox.bottom()).contains(&y) {
3642 let mut position = editor.scroll_position(cx);
3643 position.y += (new_y - y) / row_height;
3644 if position.y < 0.0 {
3645 position.y = 0.0;
3646 }
3647 editor.set_scroll_position(position, cx);
3648 }
3649
3650 cx.stop_propagation();
3651 } else {
3652 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3653 if hitbox.is_hovered(cx) {
3654 editor.scroll_manager.show_scrollbar(cx);
3655 }
3656 }
3657 mouse_position = event.position;
3658 })
3659 }
3660 });
3661
3662 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
3663 cx.on_mouse_event({
3664 let editor = self.editor.clone();
3665 move |_: &MouseUpEvent, phase, cx| {
3666 if phase == DispatchPhase::Capture {
3667 return;
3668 }
3669
3670 editor.update(cx, |editor, cx| {
3671 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3672 cx.stop_propagation();
3673 });
3674 }
3675 });
3676 } else {
3677 cx.on_mouse_event({
3678 let editor = self.editor.clone();
3679 let hitbox = scrollbar_layout.hitbox.clone();
3680 move |event: &MouseDownEvent, phase, cx| {
3681 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
3682 return;
3683 }
3684
3685 editor.update(cx, |editor, cx| {
3686 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
3687
3688 let y = event.position.y;
3689 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
3690 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
3691 let top_row = center_row
3692 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
3693 let mut position = editor.scroll_position(cx);
3694 position.y = top_row as f32;
3695 editor.set_scroll_position(position, cx);
3696 } else {
3697 editor.scroll_manager.show_scrollbar(cx);
3698 }
3699
3700 cx.stop_propagation();
3701 });
3702 }
3703 });
3704 }
3705 }
3706
3707 fn collect_fast_scrollbar_markers(
3708 &self,
3709 layout: &EditorLayout,
3710 scrollbar_layout: &ScrollbarLayout,
3711 cx: &mut WindowContext,
3712 ) -> Vec<PaintQuad> {
3713 const LIMIT: usize = 100;
3714 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
3715 return vec![];
3716 }
3717 let cursor_ranges = layout
3718 .cursors
3719 .iter()
3720 .map(|(point, color)| ColoredRange {
3721 start: point.row(),
3722 end: point.row(),
3723 color: *color,
3724 })
3725 .collect_vec();
3726 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
3727 }
3728
3729 fn refresh_slow_scrollbar_markers(
3730 &self,
3731 layout: &EditorLayout,
3732 scrollbar_layout: &ScrollbarLayout,
3733 cx: &mut WindowContext,
3734 ) {
3735 self.editor.update(cx, |editor, cx| {
3736 if !editor.is_singleton(cx)
3737 || !editor
3738 .scrollbar_marker_state
3739 .should_refresh(scrollbar_layout.hitbox.size)
3740 {
3741 return;
3742 }
3743
3744 let scrollbar_layout = scrollbar_layout.clone();
3745 let background_highlights = editor.background_highlights.clone();
3746 let snapshot = layout.position_map.snapshot.clone();
3747 let theme = cx.theme().clone();
3748 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
3749
3750 editor.scrollbar_marker_state.dirty = false;
3751 editor.scrollbar_marker_state.pending_refresh =
3752 Some(cx.spawn(|editor, mut cx| async move {
3753 let scrollbar_size = scrollbar_layout.hitbox.size;
3754 let scrollbar_markers = cx
3755 .background_executor()
3756 .spawn(async move {
3757 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
3758 let mut marker_quads = Vec::new();
3759 if scrollbar_settings.git_diff {
3760 let marker_row_ranges = snapshot
3761 .buffer_snapshot
3762 .git_diff_hunks_in_range(
3763 MultiBufferRow::MIN..MultiBufferRow::MAX,
3764 )
3765 .map(|hunk| {
3766 let start_display_row =
3767 MultiBufferPoint::new(hunk.row_range.start.0, 0)
3768 .to_display_point(&snapshot.display_snapshot)
3769 .row();
3770 let mut end_display_row =
3771 MultiBufferPoint::new(hunk.row_range.end.0, 0)
3772 .to_display_point(&snapshot.display_snapshot)
3773 .row();
3774 if end_display_row != start_display_row {
3775 end_display_row.0 -= 1;
3776 }
3777 let color = match hunk_status(&hunk) {
3778 DiffHunkStatus::Added => theme.status().created,
3779 DiffHunkStatus::Modified => theme.status().modified,
3780 DiffHunkStatus::Removed => theme.status().deleted,
3781 };
3782 ColoredRange {
3783 start: start_display_row,
3784 end: end_display_row,
3785 color,
3786 }
3787 });
3788
3789 marker_quads.extend(
3790 scrollbar_layout
3791 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
3792 );
3793 }
3794
3795 for (background_highlight_id, (_, background_ranges)) in
3796 background_highlights.iter()
3797 {
3798 let is_search_highlights = *background_highlight_id
3799 == TypeId::of::<BufferSearchHighlights>();
3800 let is_symbol_occurrences = *background_highlight_id
3801 == TypeId::of::<DocumentHighlightRead>()
3802 || *background_highlight_id
3803 == TypeId::of::<DocumentHighlightWrite>();
3804 if (is_search_highlights && scrollbar_settings.search_results)
3805 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
3806 {
3807 let mut color = theme.status().info;
3808 if is_symbol_occurrences {
3809 color.fade_out(0.5);
3810 }
3811 let marker_row_ranges = background_ranges.iter().map(|range| {
3812 let display_start = range
3813 .start
3814 .to_display_point(&snapshot.display_snapshot);
3815 let display_end =
3816 range.end.to_display_point(&snapshot.display_snapshot);
3817 ColoredRange {
3818 start: display_start.row(),
3819 end: display_end.row(),
3820 color,
3821 }
3822 });
3823 marker_quads.extend(
3824 scrollbar_layout
3825 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
3826 );
3827 }
3828 }
3829
3830 if scrollbar_settings.diagnostics {
3831 let diagnostics = snapshot
3832 .buffer_snapshot
3833 .diagnostics_in_range::<_, Point>(
3834 Point::zero()..max_point,
3835 false,
3836 )
3837 // We want to sort by severity, in order to paint the most severe diagnostics last.
3838 .sorted_by_key(|diagnostic| {
3839 std::cmp::Reverse(diagnostic.diagnostic.severity)
3840 });
3841
3842 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
3843 let start_display = diagnostic
3844 .range
3845 .start
3846 .to_display_point(&snapshot.display_snapshot);
3847 let end_display = diagnostic
3848 .range
3849 .end
3850 .to_display_point(&snapshot.display_snapshot);
3851 let color = match diagnostic.diagnostic.severity {
3852 DiagnosticSeverity::ERROR => theme.status().error,
3853 DiagnosticSeverity::WARNING => theme.status().warning,
3854 DiagnosticSeverity::INFORMATION => theme.status().info,
3855 _ => theme.status().hint,
3856 };
3857 ColoredRange {
3858 start: start_display.row(),
3859 end: end_display.row(),
3860 color,
3861 }
3862 });
3863 marker_quads.extend(
3864 scrollbar_layout
3865 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
3866 );
3867 }
3868
3869 Arc::from(marker_quads)
3870 })
3871 .await;
3872
3873 editor.update(&mut cx, |editor, cx| {
3874 editor.scrollbar_marker_state.markers = scrollbar_markers;
3875 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
3876 editor.scrollbar_marker_state.pending_refresh = None;
3877 cx.notify();
3878 })?;
3879
3880 Ok(())
3881 }));
3882 });
3883 }
3884
3885 #[allow(clippy::too_many_arguments)]
3886 fn paint_highlighted_range(
3887 &self,
3888 range: Range<DisplayPoint>,
3889 color: Hsla,
3890 corner_radius: Pixels,
3891 line_end_overshoot: Pixels,
3892 layout: &EditorLayout,
3893 cx: &mut WindowContext,
3894 ) {
3895 let start_row = layout.visible_display_row_range.start;
3896 let end_row = layout.visible_display_row_range.end;
3897 if range.start != range.end {
3898 let row_range = if range.end.column() == 0 {
3899 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3900 } else {
3901 cmp::max(range.start.row(), start_row)
3902 ..cmp::min(range.end.row().next_row(), end_row)
3903 };
3904
3905 let highlighted_range = HighlightedRange {
3906 color,
3907 line_height: layout.position_map.line_height,
3908 corner_radius,
3909 start_y: layout.content_origin.y
3910 + row_range.start.as_f32() * layout.position_map.line_height
3911 - layout.position_map.scroll_pixel_position.y,
3912 lines: row_range
3913 .iter_rows()
3914 .map(|row| {
3915 let line_layout =
3916 &layout.position_map.line_layouts[row.minus(start_row) as usize];
3917 HighlightedRangeLine {
3918 start_x: if row == range.start.row() {
3919 layout.content_origin.x
3920 + line_layout.x_for_index(range.start.column() as usize)
3921 - layout.position_map.scroll_pixel_position.x
3922 } else {
3923 layout.content_origin.x
3924 - layout.position_map.scroll_pixel_position.x
3925 },
3926 end_x: if row == range.end.row() {
3927 layout.content_origin.x
3928 + line_layout.x_for_index(range.end.column() as usize)
3929 - layout.position_map.scroll_pixel_position.x
3930 } else {
3931 layout.content_origin.x + line_layout.width + line_end_overshoot
3932 - layout.position_map.scroll_pixel_position.x
3933 },
3934 }
3935 })
3936 .collect(),
3937 };
3938
3939 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3940 }
3941 }
3942
3943 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3944 if let Some(mut inline_blame) = layout.inline_blame.take() {
3945 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3946 inline_blame.paint(cx);
3947 })
3948 }
3949 }
3950
3951 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3952 for mut block in layout.blocks.drain(..) {
3953 block.element.paint(cx);
3954 }
3955 }
3956
3957 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3958 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3959 mouse_context_menu.paint(cx);
3960 }
3961 }
3962
3963 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3964 cx.on_mouse_event({
3965 let position_map = layout.position_map.clone();
3966 let editor = self.editor.clone();
3967 let hitbox = layout.hitbox.clone();
3968 let mut delta = ScrollDelta::default();
3969
3970 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3971 // accidentally turn off their scrolling.
3972 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3973
3974 move |event: &ScrollWheelEvent, phase, cx| {
3975 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3976 delta = delta.coalesce(event.delta);
3977 editor.update(cx, |editor, cx| {
3978 let position_map: &PositionMap = &position_map;
3979
3980 let line_height = position_map.line_height;
3981 let max_glyph_width = position_map.em_width;
3982 let (delta, axis) = match delta {
3983 gpui::ScrollDelta::Pixels(mut pixels) => {
3984 //Trackpad
3985 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3986 (pixels, axis)
3987 }
3988
3989 gpui::ScrollDelta::Lines(lines) => {
3990 //Not trackpad
3991 let pixels =
3992 point(lines.x * max_glyph_width, lines.y * line_height);
3993 (pixels, None)
3994 }
3995 };
3996
3997 let current_scroll_position = position_map.snapshot.scroll_position();
3998 let x = (current_scroll_position.x * max_glyph_width
3999 - (delta.x * scroll_sensitivity))
4000 / max_glyph_width;
4001 let y = (current_scroll_position.y * line_height
4002 - (delta.y * scroll_sensitivity))
4003 / line_height;
4004 let mut scroll_position =
4005 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
4006 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
4007 if forbid_vertical_scroll {
4008 scroll_position.y = current_scroll_position.y;
4009 }
4010
4011 if scroll_position != current_scroll_position {
4012 editor.scroll(scroll_position, axis, cx);
4013 cx.stop_propagation();
4014 } else if y < 0. {
4015 // Due to clamping, we may fail to detect cases of overscroll to the top;
4016 // We want the scroll manager to get an update in such cases and detect the change of direction
4017 // on the next frame.
4018 cx.notify();
4019 }
4020 });
4021 }
4022 }
4023 });
4024 }
4025
4026 fn paint_mouse_listeners(
4027 &mut self,
4028 layout: &EditorLayout,
4029 hovered_hunk: Option<HoveredHunk>,
4030 cx: &mut WindowContext,
4031 ) {
4032 self.paint_scroll_wheel_listener(layout, cx);
4033
4034 cx.on_mouse_event({
4035 let position_map = layout.position_map.clone();
4036 let editor = self.editor.clone();
4037 let text_hitbox = layout.text_hitbox.clone();
4038 let gutter_hitbox = layout.gutter_hitbox.clone();
4039
4040 move |event: &MouseDownEvent, phase, cx| {
4041 if phase == DispatchPhase::Bubble {
4042 match event.button {
4043 MouseButton::Left => editor.update(cx, |editor, cx| {
4044 Self::mouse_left_down(
4045 editor,
4046 event,
4047 hovered_hunk.clone(),
4048 &position_map,
4049 &text_hitbox,
4050 &gutter_hitbox,
4051 cx,
4052 );
4053 }),
4054 MouseButton::Right => editor.update(cx, |editor, cx| {
4055 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
4056 }),
4057 MouseButton::Middle => editor.update(cx, |editor, cx| {
4058 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
4059 }),
4060 _ => {}
4061 };
4062 }
4063 }
4064 });
4065
4066 cx.on_mouse_event({
4067 let editor = self.editor.clone();
4068 let position_map = layout.position_map.clone();
4069 let text_hitbox = layout.text_hitbox.clone();
4070
4071 move |event: &MouseUpEvent, phase, cx| {
4072 if phase == DispatchPhase::Bubble {
4073 editor.update(cx, |editor, cx| {
4074 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
4075 });
4076 }
4077 }
4078 });
4079 cx.on_mouse_event({
4080 let position_map = layout.position_map.clone();
4081 let editor = self.editor.clone();
4082 let text_hitbox = layout.text_hitbox.clone();
4083 let gutter_hitbox = layout.gutter_hitbox.clone();
4084
4085 move |event: &MouseMoveEvent, phase, cx| {
4086 if phase == DispatchPhase::Bubble {
4087 editor.update(cx, |editor, cx| {
4088 if editor.hover_state.focused(cx) {
4089 return;
4090 }
4091 if event.pressed_button == Some(MouseButton::Left)
4092 || event.pressed_button == Some(MouseButton::Middle)
4093 {
4094 Self::mouse_dragged(
4095 editor,
4096 event,
4097 &position_map,
4098 text_hitbox.bounds,
4099 cx,
4100 )
4101 }
4102
4103 Self::mouse_moved(
4104 editor,
4105 event,
4106 &position_map,
4107 &text_hitbox,
4108 &gutter_hitbox,
4109 cx,
4110 )
4111 });
4112 }
4113 }
4114 });
4115 }
4116
4117 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
4118 bounds.upper_right().x - self.style.scrollbar_width
4119 }
4120
4121 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
4122 let style = &self.style;
4123 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4124 let layout = cx
4125 .text_system()
4126 .shape_line(
4127 SharedString::from(" ".repeat(column)),
4128 font_size,
4129 &[TextRun {
4130 len: column,
4131 font: style.text.font(),
4132 color: Hsla::default(),
4133 background_color: None,
4134 underline: None,
4135 strikethrough: None,
4136 }],
4137 )
4138 .unwrap();
4139
4140 layout.width
4141 }
4142
4143 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
4144 let digit_count = snapshot
4145 .max_buffer_row()
4146 .next_row()
4147 .as_f32()
4148 .log10()
4149 .floor() as usize
4150 + 1;
4151 self.column_pixels(digit_count, cx)
4152 }
4153}
4154
4155#[allow(clippy::too_many_arguments)]
4156fn prepaint_gutter_button(
4157 button: IconButton,
4158 row: DisplayRow,
4159 line_height: Pixels,
4160 gutter_dimensions: &GutterDimensions,
4161 scroll_pixel_position: gpui::Point<Pixels>,
4162 gutter_hitbox: &Hitbox,
4163 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
4164 cx: &mut WindowContext<'_>,
4165) -> AnyElement {
4166 let mut button = button.into_any_element();
4167 let available_space = size(
4168 AvailableSpace::MinContent,
4169 AvailableSpace::Definite(line_height),
4170 );
4171 let indicator_size = button.layout_as_root(available_space, cx);
4172
4173 let blame_width = gutter_dimensions.git_blame_entries_width;
4174 let gutter_width = rows_with_hunk_bounds
4175 .get(&row)
4176 .map(|bounds| bounds.size.width);
4177 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
4178
4179 let mut x = left_offset;
4180 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
4181 - indicator_size.width
4182 - left_offset;
4183 x += available_width / 2.;
4184
4185 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
4186 y += (line_height - indicator_size.height) / 2.;
4187
4188 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
4189 button
4190}
4191
4192fn render_inline_blame_entry(
4193 blame: &gpui::Model<GitBlame>,
4194 blame_entry: BlameEntry,
4195 style: &EditorStyle,
4196 workspace: Option<WeakView<Workspace>>,
4197 cx: &mut WindowContext<'_>,
4198) -> AnyElement {
4199 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4200
4201 let author = blame_entry.author.as_deref().unwrap_or_default();
4202 let summary_enabled = ProjectSettings::get_global(cx)
4203 .git
4204 .show_inline_commit_summary();
4205
4206 let text = match blame_entry.summary.as_ref() {
4207 Some(summary) if summary_enabled => {
4208 format!("{}, {} - {}", author, relative_timestamp, summary)
4209 }
4210 _ => format!("{}, {}", author, relative_timestamp),
4211 };
4212
4213 let details = blame.read(cx).details_for_entry(&blame_entry);
4214
4215 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
4216
4217 h_flex()
4218 .id("inline-blame")
4219 .w_full()
4220 .font_family(style.text.font().family)
4221 .text_color(cx.theme().status().hint)
4222 .line_height(style.text.line_height)
4223 .child(Icon::new(IconName::FileGit).color(Color::Hint))
4224 .child(text)
4225 .gap_2()
4226 .hoverable_tooltip(move |_| tooltip.clone().into())
4227 .into_any()
4228}
4229
4230fn render_blame_entry(
4231 ix: usize,
4232 blame: &gpui::Model<GitBlame>,
4233 blame_entry: BlameEntry,
4234 style: &EditorStyle,
4235 last_used_color: &mut Option<(PlayerColor, Oid)>,
4236 editor: View<Editor>,
4237 cx: &mut WindowContext<'_>,
4238) -> AnyElement {
4239 let mut sha_color = cx
4240 .theme()
4241 .players()
4242 .color_for_participant(blame_entry.sha.into());
4243 // If the last color we used is the same as the one we get for this line, but
4244 // the commit SHAs are different, then we try again to get a different color.
4245 match *last_used_color {
4246 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
4247 let index: u32 = blame_entry.sha.into();
4248 sha_color = cx.theme().players().color_for_participant(index + 1);
4249 }
4250 _ => {}
4251 };
4252 last_used_color.replace((sha_color, blame_entry.sha));
4253
4254 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4255
4256 let short_commit_id = blame_entry.sha.display_short();
4257
4258 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
4259 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
4260
4261 let details = blame.read(cx).details_for_entry(&blame_entry);
4262
4263 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
4264
4265 let tooltip = cx.new_view(|_| {
4266 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
4267 });
4268
4269 h_flex()
4270 .w_full()
4271 .justify_between()
4272 .font_family(style.text.font().family)
4273 .line_height(style.text.line_height)
4274 .id(("blame", ix))
4275 .text_color(cx.theme().status().hint)
4276 .pr_2()
4277 .gap_2()
4278 .child(
4279 h_flex()
4280 .items_center()
4281 .gap_2()
4282 .child(div().text_color(sha_color.cursor).child(short_commit_id))
4283 .child(name),
4284 )
4285 .child(relative_timestamp)
4286 .on_mouse_down(MouseButton::Right, {
4287 let blame_entry = blame_entry.clone();
4288 let details = details.clone();
4289 move |event, cx| {
4290 deploy_blame_entry_context_menu(
4291 &blame_entry,
4292 details.as_ref(),
4293 editor.clone(),
4294 event.position,
4295 cx,
4296 );
4297 }
4298 })
4299 .hover(|style| style.bg(cx.theme().colors().element_hover))
4300 .when_some(
4301 details.and_then(|details| details.permalink),
4302 |this, url| {
4303 let url = url.clone();
4304 this.cursor_pointer().on_click(move |_, cx| {
4305 cx.stop_propagation();
4306 cx.open_url(url.as_str())
4307 })
4308 },
4309 )
4310 .hoverable_tooltip(move |_| tooltip.clone().into())
4311 .into_any()
4312}
4313
4314fn deploy_blame_entry_context_menu(
4315 blame_entry: &BlameEntry,
4316 details: Option<&CommitDetails>,
4317 editor: View<Editor>,
4318 position: gpui::Point<Pixels>,
4319 cx: &mut WindowContext<'_>,
4320) {
4321 let context_menu = ContextMenu::build(cx, move |menu, _| {
4322 let sha = format!("{}", blame_entry.sha);
4323 menu.on_blur_subscription(Subscription::new(|| {}))
4324 .entry("Copy commit SHA", None, move |cx| {
4325 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
4326 })
4327 .when_some(
4328 details.and_then(|details| details.permalink.clone()),
4329 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
4330 )
4331 });
4332
4333 editor.update(cx, move |editor, cx| {
4334 editor.mouse_context_menu = Some(MouseContextMenu::pinned_to_screen(
4335 position,
4336 context_menu,
4337 cx,
4338 ));
4339 cx.notify();
4340 });
4341}
4342
4343#[derive(Debug)]
4344pub(crate) struct LineWithInvisibles {
4345 fragments: SmallVec<[LineFragment; 1]>,
4346 invisibles: Vec<Invisible>,
4347 len: usize,
4348 width: Pixels,
4349 font_size: Pixels,
4350}
4351
4352#[allow(clippy::large_enum_variant)]
4353enum LineFragment {
4354 Text(ShapedLine),
4355 Element {
4356 element: Option<AnyElement>,
4357 size: Size<Pixels>,
4358 len: usize,
4359 },
4360}
4361
4362impl fmt::Debug for LineFragment {
4363 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
4364 match self {
4365 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
4366 LineFragment::Element { size, len, .. } => f
4367 .debug_struct("Element")
4368 .field("size", size)
4369 .field("len", len)
4370 .finish(),
4371 }
4372 }
4373}
4374
4375impl LineWithInvisibles {
4376 #[allow(clippy::too_many_arguments)]
4377 fn from_chunks<'a>(
4378 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
4379 editor_style: &EditorStyle,
4380 max_line_len: usize,
4381 max_line_count: usize,
4382 editor_mode: EditorMode,
4383 text_width: Pixels,
4384 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4385 cx: &mut WindowContext,
4386 ) -> Vec<Self> {
4387 let text_style = &editor_style.text;
4388 let mut layouts = Vec::with_capacity(max_line_count);
4389 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
4390 let mut line = String::new();
4391 let mut invisibles = Vec::new();
4392 let mut width = Pixels::ZERO;
4393 let mut len = 0;
4394 let mut styles = Vec::new();
4395 let mut non_whitespace_added = false;
4396 let mut row = 0;
4397 let mut line_exceeded_max_len = false;
4398 let font_size = text_style.font_size.to_pixels(cx.rem_size());
4399
4400 let ellipsis = SharedString::from("⋯");
4401
4402 for highlighted_chunk in chunks.chain([HighlightedChunk {
4403 text: "\n",
4404 style: None,
4405 is_tab: false,
4406 replacement: None,
4407 }]) {
4408 if let Some(replacement) = highlighted_chunk.replacement {
4409 if !line.is_empty() {
4410 let shaped_line = cx
4411 .text_system()
4412 .shape_line(line.clone().into(), font_size, &styles)
4413 .unwrap();
4414 width += shaped_line.width;
4415 len += shaped_line.len;
4416 fragments.push(LineFragment::Text(shaped_line));
4417 line.clear();
4418 styles.clear();
4419 }
4420
4421 match replacement {
4422 ChunkReplacement::Renderer(renderer) => {
4423 let available_width = if renderer.constrain_width {
4424 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
4425 ellipsis.clone()
4426 } else {
4427 SharedString::from(Arc::from(highlighted_chunk.text))
4428 };
4429 let shaped_line = cx
4430 .text_system()
4431 .shape_line(
4432 chunk,
4433 font_size,
4434 &[text_style.to_run(highlighted_chunk.text.len())],
4435 )
4436 .unwrap();
4437 AvailableSpace::Definite(shaped_line.width)
4438 } else {
4439 AvailableSpace::MinContent
4440 };
4441
4442 let mut element = (renderer.render)(&mut ChunkRendererContext {
4443 context: cx,
4444 max_width: text_width,
4445 });
4446 let line_height = text_style.line_height_in_pixels(cx.rem_size());
4447 let size = element.layout_as_root(
4448 size(available_width, AvailableSpace::Definite(line_height)),
4449 cx,
4450 );
4451
4452 width += size.width;
4453 len += highlighted_chunk.text.len();
4454 fragments.push(LineFragment::Element {
4455 element: Some(element),
4456 size,
4457 len: highlighted_chunk.text.len(),
4458 });
4459 }
4460 ChunkReplacement::Str(x) => {
4461 let text_style = if let Some(style) = highlighted_chunk.style {
4462 Cow::Owned(text_style.clone().highlight(style))
4463 } else {
4464 Cow::Borrowed(text_style)
4465 };
4466
4467 let run = TextRun {
4468 len: x.len(),
4469 font: text_style.font(),
4470 color: text_style.color,
4471 background_color: text_style.background_color,
4472 underline: text_style.underline,
4473 strikethrough: text_style.strikethrough,
4474 };
4475 let line_layout = cx
4476 .text_system()
4477 .shape_line(x, font_size, &[run])
4478 .unwrap()
4479 .with_len(highlighted_chunk.text.len());
4480
4481 width += line_layout.width;
4482 len += highlighted_chunk.text.len();
4483 fragments.push(LineFragment::Text(line_layout))
4484 }
4485 }
4486 } else {
4487 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
4488 if ix > 0 {
4489 let shaped_line = cx
4490 .text_system()
4491 .shape_line(line.clone().into(), font_size, &styles)
4492 .unwrap();
4493 width += shaped_line.width;
4494 len += shaped_line.len;
4495 fragments.push(LineFragment::Text(shaped_line));
4496 layouts.push(Self {
4497 width: mem::take(&mut width),
4498 len: mem::take(&mut len),
4499 fragments: mem::take(&mut fragments),
4500 invisibles: std::mem::take(&mut invisibles),
4501 font_size,
4502 });
4503
4504 line.clear();
4505 styles.clear();
4506 row += 1;
4507 line_exceeded_max_len = false;
4508 non_whitespace_added = false;
4509 if row == max_line_count {
4510 return layouts;
4511 }
4512 }
4513
4514 if !line_chunk.is_empty() && !line_exceeded_max_len {
4515 let text_style = if let Some(style) = highlighted_chunk.style {
4516 Cow::Owned(text_style.clone().highlight(style))
4517 } else {
4518 Cow::Borrowed(text_style)
4519 };
4520
4521 if line.len() + line_chunk.len() > max_line_len {
4522 let mut chunk_len = max_line_len - line.len();
4523 while !line_chunk.is_char_boundary(chunk_len) {
4524 chunk_len -= 1;
4525 }
4526 line_chunk = &line_chunk[..chunk_len];
4527 line_exceeded_max_len = true;
4528 }
4529
4530 styles.push(TextRun {
4531 len: line_chunk.len(),
4532 font: text_style.font(),
4533 color: text_style.color,
4534 background_color: text_style.background_color,
4535 underline: text_style.underline,
4536 strikethrough: text_style.strikethrough,
4537 });
4538
4539 if editor_mode == EditorMode::Full {
4540 // Line wrap pads its contents with fake whitespaces,
4541 // avoid printing them
4542 let is_soft_wrapped = is_row_soft_wrapped(row);
4543 if highlighted_chunk.is_tab {
4544 if non_whitespace_added || !is_soft_wrapped {
4545 invisibles.push(Invisible::Tab {
4546 line_start_offset: line.len(),
4547 line_end_offset: line.len() + line_chunk.len(),
4548 });
4549 }
4550 } else {
4551 invisibles.extend(
4552 line_chunk
4553 .bytes()
4554 .enumerate()
4555 .filter(|(_, line_byte)| {
4556 let is_whitespace =
4557 (*line_byte as char).is_whitespace();
4558 non_whitespace_added |= !is_whitespace;
4559 is_whitespace
4560 && (non_whitespace_added || !is_soft_wrapped)
4561 })
4562 .map(|(whitespace_index, _)| Invisible::Whitespace {
4563 line_offset: line.len() + whitespace_index,
4564 }),
4565 )
4566 }
4567 }
4568
4569 line.push_str(line_chunk);
4570 }
4571 }
4572 }
4573 }
4574
4575 layouts
4576 }
4577
4578 fn prepaint(
4579 &mut self,
4580 line_height: Pixels,
4581 scroll_pixel_position: gpui::Point<Pixels>,
4582 row: DisplayRow,
4583 content_origin: gpui::Point<Pixels>,
4584 line_elements: &mut SmallVec<[AnyElement; 1]>,
4585 cx: &mut WindowContext,
4586 ) {
4587 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
4588 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
4589 for fragment in &mut self.fragments {
4590 match fragment {
4591 LineFragment::Text(line) => {
4592 fragment_origin.x += line.width;
4593 }
4594 LineFragment::Element { element, size, .. } => {
4595 let mut element = element
4596 .take()
4597 .expect("you can't prepaint LineWithInvisibles twice");
4598
4599 // Center the element vertically within the line.
4600 let mut element_origin = fragment_origin;
4601 element_origin.y += (line_height - size.height) / 2.;
4602 element.prepaint_at(element_origin, cx);
4603 line_elements.push(element);
4604
4605 fragment_origin.x += size.width;
4606 }
4607 }
4608 }
4609 }
4610
4611 fn draw(
4612 &self,
4613 layout: &EditorLayout,
4614 row: DisplayRow,
4615 content_origin: gpui::Point<Pixels>,
4616 whitespace_setting: ShowWhitespaceSetting,
4617 selection_ranges: &[Range<DisplayPoint>],
4618 cx: &mut WindowContext,
4619 ) {
4620 let line_height = layout.position_map.line_height;
4621 let line_y = line_height
4622 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
4623
4624 let mut fragment_origin =
4625 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
4626
4627 for fragment in &self.fragments {
4628 match fragment {
4629 LineFragment::Text(line) => {
4630 line.paint(fragment_origin, line_height, cx).log_err();
4631 fragment_origin.x += line.width;
4632 }
4633 LineFragment::Element { size, .. } => {
4634 fragment_origin.x += size.width;
4635 }
4636 }
4637 }
4638
4639 self.draw_invisibles(
4640 selection_ranges,
4641 layout,
4642 content_origin,
4643 line_y,
4644 row,
4645 line_height,
4646 whitespace_setting,
4647 cx,
4648 );
4649 }
4650
4651 #[allow(clippy::too_many_arguments)]
4652 fn draw_invisibles(
4653 &self,
4654 selection_ranges: &[Range<DisplayPoint>],
4655 layout: &EditorLayout,
4656 content_origin: gpui::Point<Pixels>,
4657 line_y: Pixels,
4658 row: DisplayRow,
4659 line_height: Pixels,
4660 whitespace_setting: ShowWhitespaceSetting,
4661 cx: &mut WindowContext,
4662 ) {
4663 let extract_whitespace_info = |invisible: &Invisible| {
4664 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
4665 Invisible::Tab {
4666 line_start_offset,
4667 line_end_offset,
4668 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
4669 Invisible::Whitespace { line_offset } => {
4670 (*line_offset, line_offset + 1, &layout.space_invisible)
4671 }
4672 };
4673
4674 let x_offset = self.x_for_index(token_offset);
4675 let invisible_offset =
4676 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
4677 let origin = content_origin
4678 + gpui::point(
4679 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
4680 line_y,
4681 );
4682
4683 (
4684 [token_offset, token_end_offset],
4685 Box::new(move |cx: &mut WindowContext| {
4686 invisible_symbol.paint(origin, line_height, cx).log_err();
4687 }),
4688 )
4689 };
4690
4691 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
4692 match whitespace_setting {
4693 ShowWhitespaceSetting::None => (),
4694 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
4695 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
4696 let invisible_point = DisplayPoint::new(row, start as u32);
4697 if !selection_ranges
4698 .iter()
4699 .any(|region| region.start <= invisible_point && invisible_point < region.end)
4700 {
4701 return;
4702 }
4703
4704 paint(cx);
4705 }),
4706
4707 // For a whitespace to be on a boundary, any of the following conditions need to be met:
4708 // - It is a tab
4709 // - It is adjacent to an edge (start or end)
4710 // - It is adjacent to a whitespace (left or right)
4711 ShowWhitespaceSetting::Boundary => {
4712 // We'll need to keep track of the last invisible we've seen and then check if we are adjacent to it for some of
4713 // the above cases.
4714 // Note: We zip in the original `invisibles` to check for tab equality
4715 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut WindowContext)>)> = None;
4716 for (([start, end], paint), invisible) in
4717 invisible_iter.zip_eq(self.invisibles.iter())
4718 {
4719 let should_render = match (&last_seen, invisible) {
4720 (_, Invisible::Tab { .. }) => true,
4721 (Some((_, last_end, _)), _) => *last_end == start,
4722 _ => false,
4723 };
4724
4725 if should_render || start == 0 || end == self.len {
4726 paint(cx);
4727
4728 // Since we are scanning from the left, we will skip over the first available whitespace that is part
4729 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
4730 if let Some((should_render_last, last_end, paint_last)) = last_seen {
4731 // Note that we need to make sure that the last one is actually adjacent
4732 if !should_render_last && last_end == start {
4733 paint_last(cx);
4734 }
4735 }
4736 }
4737
4738 // Manually render anything within a selection
4739 let invisible_point = DisplayPoint::new(row, start as u32);
4740 if selection_ranges.iter().any(|region| {
4741 region.start <= invisible_point && invisible_point < region.end
4742 }) {
4743 paint(cx);
4744 }
4745
4746 last_seen = Some((should_render, end, paint));
4747 }
4748 }
4749 }
4750 }
4751
4752 pub fn x_for_index(&self, index: usize) -> Pixels {
4753 let mut fragment_start_x = Pixels::ZERO;
4754 let mut fragment_start_index = 0;
4755
4756 for fragment in &self.fragments {
4757 match fragment {
4758 LineFragment::Text(shaped_line) => {
4759 let fragment_end_index = fragment_start_index + shaped_line.len;
4760 if index < fragment_end_index {
4761 return fragment_start_x
4762 + shaped_line.x_for_index(index - fragment_start_index);
4763 }
4764 fragment_start_x += shaped_line.width;
4765 fragment_start_index = fragment_end_index;
4766 }
4767 LineFragment::Element { len, size, .. } => {
4768 let fragment_end_index = fragment_start_index + len;
4769 if index < fragment_end_index {
4770 return fragment_start_x;
4771 }
4772 fragment_start_x += size.width;
4773 fragment_start_index = fragment_end_index;
4774 }
4775 }
4776 }
4777
4778 fragment_start_x
4779 }
4780
4781 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
4782 let mut fragment_start_x = Pixels::ZERO;
4783 let mut fragment_start_index = 0;
4784
4785 for fragment in &self.fragments {
4786 match fragment {
4787 LineFragment::Text(shaped_line) => {
4788 let fragment_end_x = fragment_start_x + shaped_line.width;
4789 if x < fragment_end_x {
4790 return Some(
4791 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
4792 );
4793 }
4794 fragment_start_x = fragment_end_x;
4795 fragment_start_index += shaped_line.len;
4796 }
4797 LineFragment::Element { len, size, .. } => {
4798 let fragment_end_x = fragment_start_x + size.width;
4799 if x < fragment_end_x {
4800 return Some(fragment_start_index);
4801 }
4802 fragment_start_index += len;
4803 fragment_start_x = fragment_end_x;
4804 }
4805 }
4806 }
4807
4808 None
4809 }
4810
4811 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
4812 let mut fragment_start_index = 0;
4813
4814 for fragment in &self.fragments {
4815 match fragment {
4816 LineFragment::Text(shaped_line) => {
4817 let fragment_end_index = fragment_start_index + shaped_line.len;
4818 if index < fragment_end_index {
4819 return shaped_line.font_id_for_index(index - fragment_start_index);
4820 }
4821 fragment_start_index = fragment_end_index;
4822 }
4823 LineFragment::Element { len, .. } => {
4824 let fragment_end_index = fragment_start_index + len;
4825 if index < fragment_end_index {
4826 return None;
4827 }
4828 fragment_start_index = fragment_end_index;
4829 }
4830 }
4831 }
4832
4833 None
4834 }
4835}
4836
4837#[derive(Debug, Clone, Copy, PartialEq, Eq)]
4838enum Invisible {
4839 /// A tab character
4840 ///
4841 /// A tab character is internally represented by spaces (configured by the user's tab width)
4842 /// aligned to the nearest column, so it's necessary to store the start and end offset for
4843 /// adjacency checks.
4844 Tab {
4845 line_start_offset: usize,
4846 line_end_offset: usize,
4847 },
4848 Whitespace {
4849 line_offset: usize,
4850 },
4851}
4852
4853impl EditorElement {
4854 /// Returns the rem size to use when rendering the [`EditorElement`].
4855 ///
4856 /// This allows UI elements to scale based on the `buffer_font_size`.
4857 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
4858 match self.editor.read(cx).mode {
4859 EditorMode::Full => {
4860 let buffer_font_size = self.style.text.font_size;
4861 match buffer_font_size {
4862 AbsoluteLength::Pixels(pixels) => {
4863 let rem_size_scale = {
4864 // Our default UI font size is 14px on a 16px base scale.
4865 // This means the default UI font size is 0.875rems.
4866 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
4867
4868 // We then determine the delta between a single rem and the default font
4869 // size scale.
4870 let default_font_size_delta = 1. - default_font_size_scale;
4871
4872 // Finally, we add this delta to 1rem to get the scale factor that
4873 // should be used to scale up the UI.
4874 1. + default_font_size_delta
4875 };
4876
4877 Some(pixels * rem_size_scale)
4878 }
4879 AbsoluteLength::Rems(rems) => {
4880 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
4881 }
4882 }
4883 }
4884 // We currently use single-line and auto-height editors in UI contexts,
4885 // so we don't want to scale everything with the buffer font size, as it
4886 // ends up looking off.
4887 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
4888 }
4889 }
4890}
4891
4892impl Element for EditorElement {
4893 type RequestLayoutState = ();
4894 type PrepaintState = EditorLayout;
4895
4896 fn id(&self) -> Option<ElementId> {
4897 None
4898 }
4899
4900 fn request_layout(
4901 &mut self,
4902 _: Option<&GlobalElementId>,
4903 cx: &mut WindowContext,
4904 ) -> (gpui::LayoutId, ()) {
4905 let rem_size = self.rem_size(cx);
4906 cx.with_rem_size(rem_size, |cx| {
4907 self.editor.update(cx, |editor, cx| {
4908 editor.set_style(self.style.clone(), cx);
4909
4910 let layout_id = match editor.mode {
4911 EditorMode::SingleLine { auto_width } => {
4912 let rem_size = cx.rem_size();
4913
4914 let height = self.style.text.line_height_in_pixels(rem_size);
4915 if auto_width {
4916 let editor_handle = cx.view().clone();
4917 let style = self.style.clone();
4918 cx.request_measured_layout(Style::default(), move |_, _, cx| {
4919 let editor_snapshot =
4920 editor_handle.update(cx, |editor, cx| editor.snapshot(cx));
4921 let line = Self::layout_lines(
4922 DisplayRow(0)..DisplayRow(1),
4923 &editor_snapshot,
4924 &style,
4925 px(f32::MAX),
4926 |_| false, // Single lines never soft wrap
4927 cx,
4928 )
4929 .pop()
4930 .unwrap();
4931
4932 let font_id = cx.text_system().resolve_font(&style.text.font());
4933 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4934 let em_width = cx
4935 .text_system()
4936 .typographic_bounds(font_id, font_size, 'm')
4937 .unwrap()
4938 .size
4939 .width;
4940
4941 size(line.width + em_width, height)
4942 })
4943 } else {
4944 let mut style = Style::default();
4945 style.size.height = height.into();
4946 style.size.width = relative(1.).into();
4947 cx.request_layout(style, None)
4948 }
4949 }
4950 EditorMode::AutoHeight { max_lines } => {
4951 let editor_handle = cx.view().clone();
4952 let max_line_number_width =
4953 self.max_line_number_width(&editor.snapshot(cx), cx);
4954 cx.request_measured_layout(
4955 Style::default(),
4956 move |known_dimensions, available_space, cx| {
4957 editor_handle
4958 .update(cx, |editor, cx| {
4959 compute_auto_height_layout(
4960 editor,
4961 max_lines,
4962 max_line_number_width,
4963 known_dimensions,
4964 available_space.width,
4965 cx,
4966 )
4967 })
4968 .unwrap_or_default()
4969 },
4970 )
4971 }
4972 EditorMode::Full => {
4973 let mut style = Style::default();
4974 style.size.width = relative(1.).into();
4975 style.size.height = relative(1.).into();
4976 cx.request_layout(style, None)
4977 }
4978 };
4979
4980 (layout_id, ())
4981 })
4982 })
4983 }
4984
4985 fn prepaint(
4986 &mut self,
4987 _: Option<&GlobalElementId>,
4988 bounds: Bounds<Pixels>,
4989 _: &mut Self::RequestLayoutState,
4990 cx: &mut WindowContext,
4991 ) -> Self::PrepaintState {
4992 let text_style = TextStyleRefinement {
4993 font_size: Some(self.style.text.font_size),
4994 line_height: Some(self.style.text.line_height),
4995 ..Default::default()
4996 };
4997 let focus_handle = self.editor.focus_handle(cx);
4998 cx.set_view_id(self.editor.entity_id());
4999 cx.set_focus_handle(&focus_handle);
5000
5001 let rem_size = self.rem_size(cx);
5002 cx.with_rem_size(rem_size, |cx| {
5003 cx.with_text_style(Some(text_style), |cx| {
5004 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
5005 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
5006 let style = self.style.clone();
5007
5008 let font_id = cx.text_system().resolve_font(&style.text.font());
5009 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5010 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5011 let em_width = cx
5012 .text_system()
5013 .typographic_bounds(font_id, font_size, 'm')
5014 .unwrap()
5015 .size
5016 .width;
5017 let em_advance = cx
5018 .text_system()
5019 .advance(font_id, font_size, 'm')
5020 .unwrap()
5021 .width;
5022
5023 let gutter_dimensions = snapshot.gutter_dimensions(
5024 font_id,
5025 font_size,
5026 em_width,
5027 em_advance,
5028 self.max_line_number_width(&snapshot, cx),
5029 cx,
5030 );
5031 let text_width = bounds.size.width - gutter_dimensions.width;
5032
5033 let right_margin = if snapshot.mode == EditorMode::Full {
5034 EditorElement::SCROLLBAR_WIDTH
5035 } else {
5036 px(0.)
5037 };
5038 let overscroll = size(em_width + right_margin, px(0.));
5039
5040 let editor_width =
5041 text_width - gutter_dimensions.margin - overscroll.width - em_width;
5042
5043 snapshot = self.editor.update(cx, |editor, cx| {
5044 editor.last_bounds = Some(bounds);
5045 editor.gutter_dimensions = gutter_dimensions;
5046 editor.set_visible_line_count(bounds.size.height / line_height, cx);
5047
5048 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
5049 snapshot
5050 } else {
5051 let wrap_width = match editor.soft_wrap_mode(cx) {
5052 SoftWrap::GitDiff => None,
5053 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
5054 SoftWrap::EditorWidth => Some(editor_width),
5055 SoftWrap::Column(column) => Some(column as f32 * em_advance),
5056 SoftWrap::Bounded(column) => {
5057 Some(editor_width.min(column as f32 * em_advance))
5058 }
5059 };
5060
5061 if editor.set_wrap_width(wrap_width, cx) {
5062 editor.snapshot(cx)
5063 } else {
5064 snapshot
5065 }
5066 }
5067 });
5068
5069 let wrap_guides = self
5070 .editor
5071 .read(cx)
5072 .wrap_guides(cx)
5073 .iter()
5074 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
5075 .collect::<SmallVec<[_; 2]>>();
5076
5077 let hitbox = cx.insert_hitbox(bounds, false);
5078 let gutter_hitbox =
5079 cx.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
5080 let text_hitbox = cx.insert_hitbox(
5081 Bounds {
5082 origin: gutter_hitbox.upper_right(),
5083 size: size(text_width, bounds.size.height),
5084 },
5085 false,
5086 );
5087 // Offset the content_bounds from the text_bounds by the gutter margin (which
5088 // is roughly half a character wide) to make hit testing work more like how we want.
5089 let content_origin =
5090 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
5091
5092 let height_in_lines = bounds.size.height / line_height;
5093 let max_row = snapshot.max_point().row().as_f32();
5094 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
5095 (max_row - height_in_lines + 1.).max(0.)
5096 } else {
5097 let settings = EditorSettings::get_global(cx);
5098 match settings.scroll_beyond_last_line {
5099 ScrollBeyondLastLine::OnePage => max_row,
5100 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
5101 ScrollBeyondLastLine::VerticalScrollMargin => {
5102 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
5103 .max(0.)
5104 }
5105 }
5106 };
5107
5108 let mut autoscroll_request = None;
5109 let mut autoscroll_containing_element = false;
5110 let mut autoscroll_horizontally = false;
5111 self.editor.update(cx, |editor, cx| {
5112 autoscroll_request = editor.autoscroll_request();
5113 autoscroll_containing_element =
5114 autoscroll_request.is_some() || editor.has_pending_selection();
5115 autoscroll_horizontally =
5116 editor.autoscroll_vertically(bounds, line_height, max_scroll_top, cx);
5117 snapshot = editor.snapshot(cx);
5118 });
5119
5120 let mut scroll_position = snapshot.scroll_position();
5121 // The scroll position is a fractional point, the whole number of which represents
5122 // the top of the window in terms of display rows.
5123 let start_row = DisplayRow(scroll_position.y as u32);
5124 let max_row = snapshot.max_point().row();
5125 let end_row = cmp::min(
5126 (scroll_position.y + height_in_lines).ceil() as u32,
5127 max_row.next_row().0,
5128 );
5129 let end_row = DisplayRow(end_row);
5130
5131 let buffer_rows = snapshot
5132 .buffer_rows(start_row)
5133 .take((start_row..end_row).len())
5134 .collect::<Vec<_>>();
5135 let is_row_soft_wrapped =
5136 |row| buffer_rows.get(row).copied().flatten().is_none();
5137
5138 let start_anchor = if start_row == Default::default() {
5139 Anchor::min()
5140 } else {
5141 snapshot.buffer_snapshot.anchor_before(
5142 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
5143 )
5144 };
5145 let end_anchor = if end_row > max_row {
5146 Anchor::max()
5147 } else {
5148 snapshot.buffer_snapshot.anchor_before(
5149 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
5150 )
5151 };
5152
5153 let highlighted_rows = self
5154 .editor
5155 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
5156 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
5157 start_anchor..end_anchor,
5158 &snapshot.display_snapshot,
5159 cx.theme().colors(),
5160 );
5161 let highlighted_gutter_ranges =
5162 self.editor.read(cx).gutter_highlights_in_range(
5163 start_anchor..end_anchor,
5164 &snapshot.display_snapshot,
5165 cx,
5166 );
5167
5168 let redacted_ranges = self.editor.read(cx).redacted_ranges(
5169 start_anchor..end_anchor,
5170 &snapshot.display_snapshot,
5171 cx,
5172 );
5173
5174 let local_selections: Vec<Selection<Point>> =
5175 self.editor.update(cx, |editor, cx| {
5176 let mut selections = editor
5177 .selections
5178 .disjoint_in_range(start_anchor..end_anchor, cx);
5179 selections.extend(editor.selections.pending(cx));
5180 selections
5181 });
5182
5183 let (selections, active_rows, newest_selection_head) = self.layout_selections(
5184 start_anchor,
5185 end_anchor,
5186 &local_selections,
5187 &snapshot,
5188 start_row,
5189 end_row,
5190 cx,
5191 );
5192
5193 let line_numbers = self.layout_line_numbers(
5194 start_row..end_row,
5195 buffer_rows.iter().copied(),
5196 &active_rows,
5197 newest_selection_head,
5198 &snapshot,
5199 cx,
5200 );
5201
5202 let mut crease_toggles = cx.with_element_namespace("crease_toggles", |cx| {
5203 self.layout_crease_toggles(
5204 start_row..end_row,
5205 buffer_rows.iter().copied(),
5206 &active_rows,
5207 &snapshot,
5208 cx,
5209 )
5210 });
5211 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5212 self.layout_crease_trailers(buffer_rows.iter().copied(), &snapshot, cx)
5213 });
5214
5215 let display_hunks = self.layout_gutter_git_hunks(
5216 line_height,
5217 &gutter_hitbox,
5218 start_row..end_row,
5219 start_anchor..end_anchor,
5220 &snapshot,
5221 cx,
5222 );
5223
5224 let mut max_visible_line_width = Pixels::ZERO;
5225 let mut line_layouts = Self::layout_lines(
5226 start_row..end_row,
5227 &snapshot,
5228 &self.style,
5229 editor_width,
5230 is_row_soft_wrapped,
5231 cx,
5232 );
5233 for line_with_invisibles in &line_layouts {
5234 if line_with_invisibles.width > max_visible_line_width {
5235 max_visible_line_width = line_with_invisibles.width;
5236 }
5237 }
5238
5239 let longest_line_width = layout_line(
5240 snapshot.longest_row(),
5241 &snapshot,
5242 &style,
5243 editor_width,
5244 is_row_soft_wrapped,
5245 cx,
5246 )
5247 .width;
5248 let mut scroll_width =
5249 longest_line_width.max(max_visible_line_width) + overscroll.width;
5250
5251 let blocks = cx.with_element_namespace("blocks", |cx| {
5252 self.render_blocks(
5253 start_row..end_row,
5254 &snapshot,
5255 &hitbox,
5256 &text_hitbox,
5257 editor_width,
5258 &mut scroll_width,
5259 &gutter_dimensions,
5260 em_width,
5261 gutter_dimensions.full_width(),
5262 line_height,
5263 &line_layouts,
5264 &local_selections,
5265 is_row_soft_wrapped,
5266 cx,
5267 )
5268 });
5269 let mut blocks = match blocks {
5270 Ok(blocks) => blocks,
5271 Err(resized_blocks) => {
5272 self.editor.update(cx, |editor, cx| {
5273 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
5274 });
5275 return self.prepaint(None, bounds, &mut (), cx);
5276 }
5277 };
5278
5279 let start_buffer_row =
5280 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
5281 let end_buffer_row =
5282 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
5283
5284 let scroll_max = point(
5285 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5286 max_row.as_f32(),
5287 );
5288
5289 self.editor.update(cx, |editor, cx| {
5290 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5291
5292 let autoscrolled = if autoscroll_horizontally {
5293 editor.autoscroll_horizontally(
5294 start_row,
5295 text_hitbox.size.width,
5296 scroll_width,
5297 em_width,
5298 &line_layouts,
5299 cx,
5300 )
5301 } else {
5302 false
5303 };
5304
5305 if clamped || autoscrolled {
5306 snapshot = editor.snapshot(cx);
5307 scroll_position = snapshot.scroll_position();
5308 }
5309 });
5310
5311 let scroll_pixel_position = point(
5312 scroll_position.x * em_width,
5313 scroll_position.y * line_height,
5314 );
5315
5316 let indent_guides = self.layout_indent_guides(
5317 content_origin,
5318 text_hitbox.origin,
5319 start_buffer_row..end_buffer_row,
5320 scroll_pixel_position,
5321 line_height,
5322 &snapshot,
5323 cx,
5324 );
5325
5326 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5327 self.prepaint_crease_trailers(
5328 crease_trailers,
5329 &line_layouts,
5330 line_height,
5331 content_origin,
5332 scroll_pixel_position,
5333 em_width,
5334 cx,
5335 )
5336 });
5337
5338 let mut inline_blame = None;
5339 if let Some(newest_selection_head) = newest_selection_head {
5340 let display_row = newest_selection_head.row();
5341 if (start_row..end_row).contains(&display_row) {
5342 let line_ix = display_row.minus(start_row) as usize;
5343 let line_layout = &line_layouts[line_ix];
5344 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
5345 inline_blame = self.layout_inline_blame(
5346 display_row,
5347 &snapshot.display_snapshot,
5348 line_layout,
5349 crease_trailer_layout,
5350 em_width,
5351 content_origin,
5352 scroll_pixel_position,
5353 line_height,
5354 cx,
5355 );
5356 }
5357 }
5358
5359 let blamed_display_rows = self.layout_blame_entries(
5360 buffer_rows.into_iter(),
5361 em_width,
5362 scroll_position,
5363 line_height,
5364 &gutter_hitbox,
5365 gutter_dimensions.git_blame_entries_width,
5366 cx,
5367 );
5368
5369 let scroll_max = point(
5370 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5371 max_scroll_top,
5372 );
5373
5374 self.editor.update(cx, |editor, cx| {
5375 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5376
5377 let autoscrolled = if autoscroll_horizontally {
5378 editor.autoscroll_horizontally(
5379 start_row,
5380 text_hitbox.size.width,
5381 scroll_width,
5382 em_width,
5383 &line_layouts,
5384 cx,
5385 )
5386 } else {
5387 false
5388 };
5389
5390 if clamped || autoscrolled {
5391 snapshot = editor.snapshot(cx);
5392 scroll_position = snapshot.scroll_position();
5393 }
5394 });
5395
5396 let line_elements = self.prepaint_lines(
5397 start_row,
5398 &mut line_layouts,
5399 line_height,
5400 scroll_pixel_position,
5401 content_origin,
5402 cx,
5403 );
5404
5405 let mut block_start_rows = HashSet::default();
5406 cx.with_element_namespace("blocks", |cx| {
5407 self.layout_blocks(
5408 &mut blocks,
5409 &mut block_start_rows,
5410 &hitbox,
5411 line_height,
5412 scroll_pixel_position,
5413 cx,
5414 );
5415 });
5416
5417 let cursors = self.collect_cursors(&snapshot, cx);
5418 let visible_row_range = start_row..end_row;
5419 let non_visible_cursors = cursors
5420 .iter()
5421 .any(move |c| !visible_row_range.contains(&c.0.row()));
5422
5423 let visible_cursors = self.layout_visible_cursors(
5424 &snapshot,
5425 &selections,
5426 &block_start_rows,
5427 start_row..end_row,
5428 &line_layouts,
5429 &text_hitbox,
5430 content_origin,
5431 scroll_position,
5432 scroll_pixel_position,
5433 line_height,
5434 em_width,
5435 autoscroll_containing_element,
5436 cx,
5437 );
5438
5439 let scrollbar_layout = self.layout_scrollbar(
5440 &snapshot,
5441 bounds,
5442 scroll_position,
5443 height_in_lines,
5444 non_visible_cursors,
5445 cx,
5446 );
5447
5448 let gutter_settings = EditorSettings::get_global(cx).gutter;
5449
5450 let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
5451 editor
5452 .expanded_hunks
5453 .hunks(false)
5454 .filter(|hunk| hunk.status == DiffHunkStatus::Added)
5455 .map(|expanded_hunk| {
5456 let start_row = expanded_hunk
5457 .hunk_range
5458 .start
5459 .to_display_point(&snapshot)
5460 .row();
5461 (start_row, expanded_hunk.clone())
5462 })
5463 .collect::<HashMap<_, _>>()
5464 });
5465
5466 let rows_with_hunk_bounds = display_hunks
5467 .iter()
5468 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
5469 .fold(
5470 HashMap::default(),
5471 |mut rows_with_hunk_bounds, (hunk, bounds)| {
5472 match hunk {
5473 DisplayDiffHunk::Folded { display_row } => {
5474 rows_with_hunk_bounds.insert(*display_row, bounds);
5475 }
5476 DisplayDiffHunk::Unfolded {
5477 display_row_range, ..
5478 } => {
5479 for display_row in display_row_range.iter_rows() {
5480 rows_with_hunk_bounds.insert(display_row, bounds);
5481 }
5482 }
5483 }
5484 rows_with_hunk_bounds
5485 },
5486 );
5487 let mut _context_menu_visible = false;
5488 let mut code_actions_indicator = None;
5489 if let Some(newest_selection_head) = newest_selection_head {
5490 if (start_row..end_row).contains(&newest_selection_head.row()) {
5491 _context_menu_visible = self.layout_context_menu(
5492 line_height,
5493 &hitbox,
5494 &text_hitbox,
5495 content_origin,
5496 start_row,
5497 scroll_pixel_position,
5498 &line_layouts,
5499 newest_selection_head,
5500 gutter_dimensions.width - gutter_dimensions.left_padding,
5501 cx,
5502 );
5503
5504 let show_code_actions = snapshot
5505 .show_code_actions
5506 .unwrap_or(gutter_settings.code_actions);
5507 if show_code_actions {
5508 let newest_selection_point =
5509 newest_selection_head.to_point(&snapshot.display_snapshot);
5510 let newest_selection_display_row =
5511 newest_selection_point.to_display_point(&snapshot).row();
5512 if !expanded_add_hunks_by_rows
5513 .contains_key(&newest_selection_display_row)
5514 {
5515 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
5516 MultiBufferRow(newest_selection_point.row),
5517 );
5518 if let Some((buffer, range)) = buffer {
5519 let buffer_id = buffer.remote_id();
5520 let row = range.start.row;
5521 let has_test_indicator = self
5522 .editor
5523 .read(cx)
5524 .tasks
5525 .contains_key(&(buffer_id, row));
5526
5527 if !has_test_indicator {
5528 code_actions_indicator = self
5529 .layout_code_actions_indicator(
5530 line_height,
5531 newest_selection_head,
5532 scroll_pixel_position,
5533 &gutter_dimensions,
5534 &gutter_hitbox,
5535 &rows_with_hunk_bounds,
5536 cx,
5537 );
5538 }
5539 }
5540 }
5541 }
5542 }
5543 }
5544
5545 let test_indicators = if gutter_settings.runnables {
5546 self.layout_run_indicators(
5547 line_height,
5548 start_row..end_row,
5549 scroll_pixel_position,
5550 &gutter_dimensions,
5551 &gutter_hitbox,
5552 &rows_with_hunk_bounds,
5553 &snapshot,
5554 cx,
5555 )
5556 } else {
5557 Vec::new()
5558 };
5559
5560 self.layout_signature_help(
5561 &hitbox,
5562 content_origin,
5563 scroll_pixel_position,
5564 newest_selection_head,
5565 start_row,
5566 &line_layouts,
5567 line_height,
5568 em_width,
5569 cx,
5570 );
5571
5572 if !cx.has_active_drag() {
5573 self.layout_hover_popovers(
5574 &snapshot,
5575 &hitbox,
5576 &text_hitbox,
5577 start_row..end_row,
5578 content_origin,
5579 scroll_pixel_position,
5580 &line_layouts,
5581 line_height,
5582 em_width,
5583 cx,
5584 );
5585 }
5586
5587 let mouse_context_menu =
5588 self.layout_mouse_context_menu(&snapshot, start_row..end_row, cx);
5589
5590 cx.with_element_namespace("crease_toggles", |cx| {
5591 self.prepaint_crease_toggles(
5592 &mut crease_toggles,
5593 line_height,
5594 &gutter_dimensions,
5595 gutter_settings,
5596 scroll_pixel_position,
5597 &gutter_hitbox,
5598 cx,
5599 )
5600 });
5601
5602 let invisible_symbol_font_size = font_size / 2.;
5603 let tab_invisible = cx
5604 .text_system()
5605 .shape_line(
5606 "→".into(),
5607 invisible_symbol_font_size,
5608 &[TextRun {
5609 len: "→".len(),
5610 font: self.style.text.font(),
5611 color: cx.theme().colors().editor_invisible,
5612 background_color: None,
5613 underline: None,
5614 strikethrough: None,
5615 }],
5616 )
5617 .unwrap();
5618 let space_invisible = cx
5619 .text_system()
5620 .shape_line(
5621 "•".into(),
5622 invisible_symbol_font_size,
5623 &[TextRun {
5624 len: "•".len(),
5625 font: self.style.text.font(),
5626 color: cx.theme().colors().editor_invisible,
5627 background_color: None,
5628 underline: None,
5629 strikethrough: None,
5630 }],
5631 )
5632 .unwrap();
5633
5634 EditorLayout {
5635 mode: snapshot.mode,
5636 position_map: Rc::new(PositionMap {
5637 size: bounds.size,
5638 scroll_pixel_position,
5639 scroll_max,
5640 line_layouts,
5641 line_height,
5642 em_width,
5643 em_advance,
5644 snapshot,
5645 }),
5646 visible_display_row_range: start_row..end_row,
5647 wrap_guides,
5648 indent_guides,
5649 hitbox,
5650 text_hitbox,
5651 gutter_hitbox,
5652 gutter_dimensions,
5653 display_hunks,
5654 content_origin,
5655 scrollbar_layout,
5656 active_rows,
5657 highlighted_rows,
5658 highlighted_ranges,
5659 highlighted_gutter_ranges,
5660 redacted_ranges,
5661 line_elements,
5662 line_numbers,
5663 blamed_display_rows,
5664 inline_blame,
5665 blocks,
5666 cursors,
5667 visible_cursors,
5668 selections,
5669 mouse_context_menu,
5670 test_indicators,
5671 code_actions_indicator,
5672 crease_toggles,
5673 crease_trailers,
5674 tab_invisible,
5675 space_invisible,
5676 }
5677 })
5678 })
5679 })
5680 }
5681
5682 fn paint(
5683 &mut self,
5684 _: Option<&GlobalElementId>,
5685 bounds: Bounds<gpui::Pixels>,
5686 _: &mut Self::RequestLayoutState,
5687 layout: &mut Self::PrepaintState,
5688 cx: &mut WindowContext,
5689 ) {
5690 let focus_handle = self.editor.focus_handle(cx);
5691 let key_context = self.editor.update(cx, |editor, cx| editor.key_context(cx));
5692 cx.set_key_context(key_context);
5693 cx.handle_input(
5694 &focus_handle,
5695 ElementInputHandler::new(bounds, self.editor.clone()),
5696 );
5697 self.register_actions(cx);
5698 self.register_key_listeners(cx, layout);
5699
5700 let text_style = TextStyleRefinement {
5701 font_size: Some(self.style.text.font_size),
5702 line_height: Some(self.style.text.line_height),
5703 ..Default::default()
5704 };
5705 let hovered_hunk = layout
5706 .display_hunks
5707 .iter()
5708 .find_map(|(hunk, hunk_hitbox)| match hunk {
5709 DisplayDiffHunk::Folded { .. } => None,
5710 DisplayDiffHunk::Unfolded {
5711 diff_base_byte_range,
5712 multi_buffer_range,
5713 status,
5714 ..
5715 } => {
5716 if hunk_hitbox
5717 .as_ref()
5718 .map(|hitbox| hitbox.is_hovered(cx))
5719 .unwrap_or(false)
5720 {
5721 Some(HoveredHunk {
5722 status: *status,
5723 multi_buffer_range: multi_buffer_range.clone(),
5724 diff_base_byte_range: diff_base_byte_range.clone(),
5725 })
5726 } else {
5727 None
5728 }
5729 }
5730 });
5731 let rem_size = self.rem_size(cx);
5732 cx.with_rem_size(rem_size, |cx| {
5733 cx.with_text_style(Some(text_style), |cx| {
5734 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
5735 self.paint_mouse_listeners(layout, hovered_hunk, cx);
5736 self.paint_background(layout, cx);
5737 self.paint_indent_guides(layout, cx);
5738
5739 if layout.gutter_hitbox.size.width > Pixels::ZERO {
5740 self.paint_blamed_display_rows(layout, cx);
5741 self.paint_line_numbers(layout, cx);
5742 }
5743
5744 self.paint_text(layout, cx);
5745
5746 if layout.gutter_hitbox.size.width > Pixels::ZERO {
5747 self.paint_gutter_highlights(layout, cx);
5748 self.paint_gutter_indicators(layout, cx);
5749 }
5750
5751 if !layout.blocks.is_empty() {
5752 cx.with_element_namespace("blocks", |cx| {
5753 self.paint_blocks(layout, cx);
5754 });
5755 }
5756
5757 self.paint_scrollbar(layout, cx);
5758 self.paint_mouse_context_menu(layout, cx);
5759 });
5760 })
5761 })
5762 }
5763}
5764
5765pub(super) fn gutter_bounds(
5766 editor_bounds: Bounds<Pixels>,
5767 gutter_dimensions: GutterDimensions,
5768) -> Bounds<Pixels> {
5769 Bounds {
5770 origin: editor_bounds.origin,
5771 size: size(gutter_dimensions.width, editor_bounds.size.height),
5772 }
5773}
5774
5775impl IntoElement for EditorElement {
5776 type Element = Self;
5777
5778 fn into_element(self) -> Self::Element {
5779 self
5780 }
5781}
5782
5783pub struct EditorLayout {
5784 position_map: Rc<PositionMap>,
5785 hitbox: Hitbox,
5786 text_hitbox: Hitbox,
5787 gutter_hitbox: Hitbox,
5788 gutter_dimensions: GutterDimensions,
5789 content_origin: gpui::Point<Pixels>,
5790 scrollbar_layout: Option<ScrollbarLayout>,
5791 mode: EditorMode,
5792 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
5793 indent_guides: Option<Vec<IndentGuideLayout>>,
5794 visible_display_row_range: Range<DisplayRow>,
5795 active_rows: BTreeMap<DisplayRow, bool>,
5796 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
5797 line_elements: SmallVec<[AnyElement; 1]>,
5798 line_numbers: Vec<Option<ShapedLine>>,
5799 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
5800 blamed_display_rows: Option<Vec<AnyElement>>,
5801 inline_blame: Option<AnyElement>,
5802 blocks: Vec<BlockLayout>,
5803 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
5804 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
5805 redacted_ranges: Vec<Range<DisplayPoint>>,
5806 cursors: Vec<(DisplayPoint, Hsla)>,
5807 visible_cursors: Vec<CursorLayout>,
5808 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
5809 code_actions_indicator: Option<AnyElement>,
5810 test_indicators: Vec<AnyElement>,
5811 crease_toggles: Vec<Option<AnyElement>>,
5812 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
5813 mouse_context_menu: Option<AnyElement>,
5814 tab_invisible: ShapedLine,
5815 space_invisible: ShapedLine,
5816}
5817
5818impl EditorLayout {
5819 fn line_end_overshoot(&self) -> Pixels {
5820 0.15 * self.position_map.line_height
5821 }
5822}
5823
5824struct ColoredRange<T> {
5825 start: T,
5826 end: T,
5827 color: Hsla,
5828}
5829
5830#[derive(Clone)]
5831struct ScrollbarLayout {
5832 hitbox: Hitbox,
5833 visible_row_range: Range<f32>,
5834 visible: bool,
5835 row_height: Pixels,
5836 thumb_height: Pixels,
5837}
5838
5839impl ScrollbarLayout {
5840 const BORDER_WIDTH: Pixels = px(1.0);
5841 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
5842 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
5843 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
5844
5845 fn thumb_bounds(&self) -> Bounds<Pixels> {
5846 let thumb_top = self.y_for_row(self.visible_row_range.start);
5847 let thumb_bottom = thumb_top + self.thumb_height;
5848 Bounds::from_corners(
5849 point(self.hitbox.left(), thumb_top),
5850 point(self.hitbox.right(), thumb_bottom),
5851 )
5852 }
5853
5854 fn y_for_row(&self, row: f32) -> Pixels {
5855 self.hitbox.top() + row * self.row_height
5856 }
5857
5858 fn marker_quads_for_ranges(
5859 &self,
5860 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
5861 column: Option<usize>,
5862 ) -> Vec<PaintQuad> {
5863 struct MinMax {
5864 min: Pixels,
5865 max: Pixels,
5866 }
5867 let (x_range, height_limit) = if let Some(column) = column {
5868 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
5869 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
5870 let end = start + column_width;
5871 (
5872 Range { start, end },
5873 MinMax {
5874 min: Self::MIN_MARKER_HEIGHT,
5875 max: px(f32::MAX),
5876 },
5877 )
5878 } else {
5879 (
5880 Range {
5881 start: Self::BORDER_WIDTH,
5882 end: self.hitbox.size.width,
5883 },
5884 MinMax {
5885 min: Self::LINE_MARKER_HEIGHT,
5886 max: Self::LINE_MARKER_HEIGHT,
5887 },
5888 )
5889 };
5890
5891 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
5892 let mut pixel_ranges = row_ranges
5893 .into_iter()
5894 .map(|range| {
5895 let start_y = row_to_y(range.start);
5896 let end_y = row_to_y(range.end)
5897 + self.row_height.max(height_limit.min).min(height_limit.max);
5898 ColoredRange {
5899 start: start_y,
5900 end: end_y,
5901 color: range.color,
5902 }
5903 })
5904 .peekable();
5905
5906 let mut quads = Vec::new();
5907 while let Some(mut pixel_range) = pixel_ranges.next() {
5908 while let Some(next_pixel_range) = pixel_ranges.peek() {
5909 if pixel_range.end >= next_pixel_range.start - px(1.0)
5910 && pixel_range.color == next_pixel_range.color
5911 {
5912 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
5913 pixel_ranges.next();
5914 } else {
5915 break;
5916 }
5917 }
5918
5919 let bounds = Bounds::from_corners(
5920 point(x_range.start, pixel_range.start),
5921 point(x_range.end, pixel_range.end),
5922 );
5923 quads.push(quad(
5924 bounds,
5925 Corners::default(),
5926 pixel_range.color,
5927 Edges::default(),
5928 Hsla::transparent_black(),
5929 ));
5930 }
5931
5932 quads
5933 }
5934}
5935
5936struct CreaseTrailerLayout {
5937 element: AnyElement,
5938 bounds: Bounds<Pixels>,
5939}
5940
5941struct PositionMap {
5942 size: Size<Pixels>,
5943 line_height: Pixels,
5944 scroll_pixel_position: gpui::Point<Pixels>,
5945 scroll_max: gpui::Point<f32>,
5946 em_width: Pixels,
5947 em_advance: Pixels,
5948 line_layouts: Vec<LineWithInvisibles>,
5949 snapshot: EditorSnapshot,
5950}
5951
5952#[derive(Debug, Copy, Clone)]
5953pub struct PointForPosition {
5954 pub previous_valid: DisplayPoint,
5955 pub next_valid: DisplayPoint,
5956 pub exact_unclipped: DisplayPoint,
5957 pub column_overshoot_after_line_end: u32,
5958}
5959
5960impl PointForPosition {
5961 pub fn as_valid(&self) -> Option<DisplayPoint> {
5962 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
5963 Some(self.previous_valid)
5964 } else {
5965 None
5966 }
5967 }
5968}
5969
5970impl PositionMap {
5971 fn point_for_position(
5972 &self,
5973 text_bounds: Bounds<Pixels>,
5974 position: gpui::Point<Pixels>,
5975 ) -> PointForPosition {
5976 let scroll_position = self.snapshot.scroll_position();
5977 let position = position - text_bounds.origin;
5978 let y = position.y.max(px(0.)).min(self.size.height);
5979 let x = position.x + (scroll_position.x * self.em_width);
5980 let row = ((y / self.line_height) + scroll_position.y) as u32;
5981
5982 let (column, x_overshoot_after_line_end) = if let Some(line) = self
5983 .line_layouts
5984 .get(row as usize - scroll_position.y as usize)
5985 {
5986 if let Some(ix) = line.index_for_x(x) {
5987 (ix as u32, px(0.))
5988 } else {
5989 (line.len as u32, px(0.).max(x - line.width))
5990 }
5991 } else {
5992 (0, x)
5993 };
5994
5995 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
5996 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
5997 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
5998
5999 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
6000 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
6001 PointForPosition {
6002 previous_valid,
6003 next_valid,
6004 exact_unclipped,
6005 column_overshoot_after_line_end,
6006 }
6007 }
6008}
6009
6010struct BlockLayout {
6011 id: BlockId,
6012 row: Option<DisplayRow>,
6013 element: AnyElement,
6014 available_space: Size<AvailableSpace>,
6015 style: BlockStyle,
6016}
6017
6018fn layout_line(
6019 row: DisplayRow,
6020 snapshot: &EditorSnapshot,
6021 style: &EditorStyle,
6022 text_width: Pixels,
6023 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6024 cx: &mut WindowContext,
6025) -> LineWithInvisibles {
6026 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
6027 LineWithInvisibles::from_chunks(
6028 chunks,
6029 &style,
6030 MAX_LINE_LEN,
6031 1,
6032 snapshot.mode,
6033 text_width,
6034 is_row_soft_wrapped,
6035 cx,
6036 )
6037 .pop()
6038 .unwrap()
6039}
6040
6041#[derive(Debug)]
6042pub struct IndentGuideLayout {
6043 origin: gpui::Point<Pixels>,
6044 length: Pixels,
6045 single_indent_width: Pixels,
6046 depth: u32,
6047 active: bool,
6048 settings: IndentGuideSettings,
6049}
6050
6051pub struct CursorLayout {
6052 origin: gpui::Point<Pixels>,
6053 block_width: Pixels,
6054 line_height: Pixels,
6055 color: Hsla,
6056 shape: CursorShape,
6057 block_text: Option<ShapedLine>,
6058 cursor_name: Option<AnyElement>,
6059}
6060
6061#[derive(Debug)]
6062pub struct CursorName {
6063 string: SharedString,
6064 color: Hsla,
6065 is_top_row: bool,
6066}
6067
6068impl CursorLayout {
6069 pub fn new(
6070 origin: gpui::Point<Pixels>,
6071 block_width: Pixels,
6072 line_height: Pixels,
6073 color: Hsla,
6074 shape: CursorShape,
6075 block_text: Option<ShapedLine>,
6076 ) -> CursorLayout {
6077 CursorLayout {
6078 origin,
6079 block_width,
6080 line_height,
6081 color,
6082 shape,
6083 block_text,
6084 cursor_name: None,
6085 }
6086 }
6087
6088 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6089 Bounds {
6090 origin: self.origin + origin,
6091 size: size(self.block_width, self.line_height),
6092 }
6093 }
6094
6095 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6096 match self.shape {
6097 CursorShape::Bar => Bounds {
6098 origin: self.origin + origin,
6099 size: size(px(2.0), self.line_height),
6100 },
6101 CursorShape::Block | CursorShape::Hollow => Bounds {
6102 origin: self.origin + origin,
6103 size: size(self.block_width, self.line_height),
6104 },
6105 CursorShape::Underline => Bounds {
6106 origin: self.origin
6107 + origin
6108 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
6109 size: size(self.block_width, px(2.0)),
6110 },
6111 }
6112 }
6113
6114 pub fn layout(
6115 &mut self,
6116 origin: gpui::Point<Pixels>,
6117 cursor_name: Option<CursorName>,
6118 cx: &mut WindowContext,
6119 ) {
6120 if let Some(cursor_name) = cursor_name {
6121 let bounds = self.bounds(origin);
6122 let text_size = self.line_height / 1.5;
6123
6124 let name_origin = if cursor_name.is_top_row {
6125 point(bounds.right() - px(1.), bounds.top())
6126 } else {
6127 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
6128 };
6129 let mut name_element = div()
6130 .bg(self.color)
6131 .text_size(text_size)
6132 .px_0p5()
6133 .line_height(text_size + px(2.))
6134 .text_color(cursor_name.color)
6135 .child(cursor_name.string.clone())
6136 .into_any_element();
6137
6138 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), cx);
6139
6140 self.cursor_name = Some(name_element);
6141 }
6142 }
6143
6144 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
6145 let bounds = self.bounds(origin);
6146
6147 //Draw background or border quad
6148 let cursor = if matches!(self.shape, CursorShape::Hollow) {
6149 outline(bounds, self.color)
6150 } else {
6151 fill(bounds, self.color)
6152 };
6153
6154 if let Some(name) = &mut self.cursor_name {
6155 name.paint(cx);
6156 }
6157
6158 cx.paint_quad(cursor);
6159
6160 if let Some(block_text) = &self.block_text {
6161 block_text
6162 .paint(self.origin + origin, self.line_height, cx)
6163 .log_err();
6164 }
6165 }
6166
6167 pub fn shape(&self) -> CursorShape {
6168 self.shape
6169 }
6170}
6171
6172#[derive(Debug)]
6173pub struct HighlightedRange {
6174 pub start_y: Pixels,
6175 pub line_height: Pixels,
6176 pub lines: Vec<HighlightedRangeLine>,
6177 pub color: Hsla,
6178 pub corner_radius: Pixels,
6179}
6180
6181#[derive(Debug)]
6182pub struct HighlightedRangeLine {
6183 pub start_x: Pixels,
6184 pub end_x: Pixels,
6185}
6186
6187impl HighlightedRange {
6188 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
6189 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
6190 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
6191 self.paint_lines(
6192 self.start_y + self.line_height,
6193 &self.lines[1..],
6194 bounds,
6195 cx,
6196 );
6197 } else {
6198 self.paint_lines(self.start_y, &self.lines, bounds, cx);
6199 }
6200 }
6201
6202 fn paint_lines(
6203 &self,
6204 start_y: Pixels,
6205 lines: &[HighlightedRangeLine],
6206 _bounds: Bounds<Pixels>,
6207 cx: &mut WindowContext,
6208 ) {
6209 if lines.is_empty() {
6210 return;
6211 }
6212
6213 let first_line = lines.first().unwrap();
6214 let last_line = lines.last().unwrap();
6215
6216 let first_top_left = point(first_line.start_x, start_y);
6217 let first_top_right = point(first_line.end_x, start_y);
6218
6219 let curve_height = point(Pixels::ZERO, self.corner_radius);
6220 let curve_width = |start_x: Pixels, end_x: Pixels| {
6221 let max = (end_x - start_x) / 2.;
6222 let width = if max < self.corner_radius {
6223 max
6224 } else {
6225 self.corner_radius
6226 };
6227
6228 point(width, Pixels::ZERO)
6229 };
6230
6231 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
6232 let mut path = gpui::Path::new(first_top_right - top_curve_width);
6233 path.curve_to(first_top_right + curve_height, first_top_right);
6234
6235 let mut iter = lines.iter().enumerate().peekable();
6236 while let Some((ix, line)) = iter.next() {
6237 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
6238
6239 if let Some((_, next_line)) = iter.peek() {
6240 let next_top_right = point(next_line.end_x, bottom_right.y);
6241
6242 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
6243 Ordering::Equal => {
6244 path.line_to(bottom_right);
6245 }
6246 Ordering::Less => {
6247 let curve_width = curve_width(next_top_right.x, bottom_right.x);
6248 path.line_to(bottom_right - curve_height);
6249 if self.corner_radius > Pixels::ZERO {
6250 path.curve_to(bottom_right - curve_width, bottom_right);
6251 }
6252 path.line_to(next_top_right + curve_width);
6253 if self.corner_radius > Pixels::ZERO {
6254 path.curve_to(next_top_right + curve_height, next_top_right);
6255 }
6256 }
6257 Ordering::Greater => {
6258 let curve_width = curve_width(bottom_right.x, next_top_right.x);
6259 path.line_to(bottom_right - curve_height);
6260 if self.corner_radius > Pixels::ZERO {
6261 path.curve_to(bottom_right + curve_width, bottom_right);
6262 }
6263 path.line_to(next_top_right - curve_width);
6264 if self.corner_radius > Pixels::ZERO {
6265 path.curve_to(next_top_right + curve_height, next_top_right);
6266 }
6267 }
6268 }
6269 } else {
6270 let curve_width = curve_width(line.start_x, line.end_x);
6271 path.line_to(bottom_right - curve_height);
6272 if self.corner_radius > Pixels::ZERO {
6273 path.curve_to(bottom_right - curve_width, bottom_right);
6274 }
6275
6276 let bottom_left = point(line.start_x, bottom_right.y);
6277 path.line_to(bottom_left + curve_width);
6278 if self.corner_radius > Pixels::ZERO {
6279 path.curve_to(bottom_left - curve_height, bottom_left);
6280 }
6281 }
6282 }
6283
6284 if first_line.start_x > last_line.start_x {
6285 let curve_width = curve_width(last_line.start_x, first_line.start_x);
6286 let second_top_left = point(last_line.start_x, start_y + self.line_height);
6287 path.line_to(second_top_left + curve_height);
6288 if self.corner_radius > Pixels::ZERO {
6289 path.curve_to(second_top_left + curve_width, second_top_left);
6290 }
6291 let first_bottom_left = point(first_line.start_x, second_top_left.y);
6292 path.line_to(first_bottom_left - curve_width);
6293 if self.corner_radius > Pixels::ZERO {
6294 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
6295 }
6296 }
6297
6298 path.line_to(first_top_left + curve_height);
6299 if self.corner_radius > Pixels::ZERO {
6300 path.curve_to(first_top_left + top_curve_width, first_top_left);
6301 }
6302 path.line_to(first_top_right - top_curve_width);
6303
6304 cx.paint_path(path, self.color);
6305 }
6306}
6307
6308pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6309 (delta.pow(1.5) / 100.0).into()
6310}
6311
6312fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6313 (delta.pow(1.2) / 300.0).into()
6314}
6315
6316pub fn register_action<T: Action>(
6317 view: &View<Editor>,
6318 cx: &mut WindowContext,
6319 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
6320) {
6321 let view = view.clone();
6322 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
6323 let action = action.downcast_ref().unwrap();
6324 if phase == DispatchPhase::Bubble {
6325 view.update(cx, |editor, cx| {
6326 listener(editor, action, cx);
6327 })
6328 }
6329 })
6330}
6331
6332fn compute_auto_height_layout(
6333 editor: &mut Editor,
6334 max_lines: usize,
6335 max_line_number_width: Pixels,
6336 known_dimensions: Size<Option<Pixels>>,
6337 available_width: AvailableSpace,
6338 cx: &mut ViewContext<Editor>,
6339) -> Option<Size<Pixels>> {
6340 let width = known_dimensions.width.or({
6341 if let AvailableSpace::Definite(available_width) = available_width {
6342 Some(available_width)
6343 } else {
6344 None
6345 }
6346 })?;
6347 if let Some(height) = known_dimensions.height {
6348 return Some(size(width, height));
6349 }
6350
6351 let style = editor.style.as_ref().unwrap();
6352 let font_id = cx.text_system().resolve_font(&style.text.font());
6353 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6354 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6355 let em_width = cx
6356 .text_system()
6357 .typographic_bounds(font_id, font_size, 'm')
6358 .unwrap()
6359 .size
6360 .width;
6361 let em_advance = cx
6362 .text_system()
6363 .advance(font_id, font_size, 'm')
6364 .unwrap()
6365 .width;
6366
6367 let mut snapshot = editor.snapshot(cx);
6368 let gutter_dimensions = snapshot.gutter_dimensions(
6369 font_id,
6370 font_size,
6371 em_width,
6372 em_advance,
6373 max_line_number_width,
6374 cx,
6375 );
6376
6377 editor.gutter_dimensions = gutter_dimensions;
6378 let text_width = width - gutter_dimensions.width;
6379 let overscroll = size(em_width, px(0.));
6380
6381 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
6382 if editor.set_wrap_width(Some(editor_width), cx) {
6383 snapshot = editor.snapshot(cx);
6384 }
6385
6386 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
6387 let height = scroll_height
6388 .max(line_height)
6389 .min(line_height * max_lines as f32);
6390
6391 Some(size(width, height))
6392}
6393
6394#[cfg(test)]
6395mod tests {
6396 use super::*;
6397 use crate::{
6398 display_map::{BlockPlacement, BlockProperties},
6399 editor_tests::{init_test, update_test_language_settings},
6400 Editor, MultiBuffer,
6401 };
6402 use gpui::{TestAppContext, VisualTestContext};
6403 use language::language_settings;
6404 use log::info;
6405 use std::num::NonZeroU32;
6406 use ui::Context;
6407 use util::test::sample_text;
6408
6409 #[gpui::test]
6410 fn test_shape_line_numbers(cx: &mut TestAppContext) {
6411 init_test(cx, |_| {});
6412 let window = cx.add_window(|cx| {
6413 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
6414 Editor::new(EditorMode::Full, buffer, None, true, cx)
6415 });
6416
6417 let editor = window.root(cx).unwrap();
6418 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6419 let element = EditorElement::new(&editor, style);
6420 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
6421
6422 let layouts = cx
6423 .update_window(*window, |_, cx| {
6424 element.layout_line_numbers(
6425 DisplayRow(0)..DisplayRow(6),
6426 (0..6).map(MultiBufferRow).map(Some),
6427 &Default::default(),
6428 Some(DisplayPoint::new(DisplayRow(0), 0)),
6429 &snapshot,
6430 cx,
6431 )
6432 })
6433 .unwrap();
6434 assert_eq!(layouts.len(), 6);
6435
6436 let relative_rows = window
6437 .update(cx, |editor, cx| {
6438 let snapshot = editor.snapshot(cx);
6439 element.calculate_relative_line_numbers(
6440 &snapshot,
6441 &(DisplayRow(0)..DisplayRow(6)),
6442 Some(DisplayRow(3)),
6443 )
6444 })
6445 .unwrap();
6446 assert_eq!(relative_rows[&DisplayRow(0)], 3);
6447 assert_eq!(relative_rows[&DisplayRow(1)], 2);
6448 assert_eq!(relative_rows[&DisplayRow(2)], 1);
6449 // current line has no relative number
6450 assert_eq!(relative_rows[&DisplayRow(4)], 1);
6451 assert_eq!(relative_rows[&DisplayRow(5)], 2);
6452
6453 // works if cursor is before screen
6454 let relative_rows = window
6455 .update(cx, |editor, cx| {
6456 let snapshot = editor.snapshot(cx);
6457 element.calculate_relative_line_numbers(
6458 &snapshot,
6459 &(DisplayRow(3)..DisplayRow(6)),
6460 Some(DisplayRow(1)),
6461 )
6462 })
6463 .unwrap();
6464 assert_eq!(relative_rows.len(), 3);
6465 assert_eq!(relative_rows[&DisplayRow(3)], 2);
6466 assert_eq!(relative_rows[&DisplayRow(4)], 3);
6467 assert_eq!(relative_rows[&DisplayRow(5)], 4);
6468
6469 // works if cursor is after screen
6470 let relative_rows = window
6471 .update(cx, |editor, cx| {
6472 let snapshot = editor.snapshot(cx);
6473 element.calculate_relative_line_numbers(
6474 &snapshot,
6475 &(DisplayRow(0)..DisplayRow(3)),
6476 Some(DisplayRow(6)),
6477 )
6478 })
6479 .unwrap();
6480 assert_eq!(relative_rows.len(), 3);
6481 assert_eq!(relative_rows[&DisplayRow(0)], 5);
6482 assert_eq!(relative_rows[&DisplayRow(1)], 4);
6483 assert_eq!(relative_rows[&DisplayRow(2)], 3);
6484 }
6485
6486 #[gpui::test]
6487 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
6488 init_test(cx, |_| {});
6489
6490 let window = cx.add_window(|cx| {
6491 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
6492 Editor::new(EditorMode::Full, buffer, None, true, cx)
6493 });
6494 let cx = &mut VisualTestContext::from_window(*window, cx);
6495 let editor = window.root(cx).unwrap();
6496 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6497
6498 window
6499 .update(cx, |editor, cx| {
6500 editor.cursor_shape = CursorShape::Block;
6501 editor.change_selections(None, cx, |s| {
6502 s.select_ranges([
6503 Point::new(0, 0)..Point::new(1, 0),
6504 Point::new(3, 2)..Point::new(3, 3),
6505 Point::new(5, 6)..Point::new(6, 0),
6506 ]);
6507 });
6508 })
6509 .unwrap();
6510
6511 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6512 EditorElement::new(&editor, style)
6513 });
6514
6515 assert_eq!(state.selections.len(), 1);
6516 let local_selections = &state.selections[0].1;
6517 assert_eq!(local_selections.len(), 3);
6518 // moves cursor back one line
6519 assert_eq!(
6520 local_selections[0].head,
6521 DisplayPoint::new(DisplayRow(0), 6)
6522 );
6523 assert_eq!(
6524 local_selections[0].range,
6525 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
6526 );
6527
6528 // moves cursor back one column
6529 assert_eq!(
6530 local_selections[1].range,
6531 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
6532 );
6533 assert_eq!(
6534 local_selections[1].head,
6535 DisplayPoint::new(DisplayRow(3), 2)
6536 );
6537
6538 // leaves cursor on the max point
6539 assert_eq!(
6540 local_selections[2].range,
6541 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
6542 );
6543 assert_eq!(
6544 local_selections[2].head,
6545 DisplayPoint::new(DisplayRow(6), 0)
6546 );
6547
6548 // active lines does not include 1 (even though the range of the selection does)
6549 assert_eq!(
6550 state.active_rows.keys().cloned().collect::<Vec<_>>(),
6551 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
6552 );
6553
6554 // multi-buffer support
6555 // in DisplayPoint coordinates, this is what we're dealing with:
6556 // 0: [[file
6557 // 1: header
6558 // 2: section]]
6559 // 3: aaaaaa
6560 // 4: bbbbbb
6561 // 5: cccccc
6562 // 6:
6563 // 7: [[footer]]
6564 // 8: [[header]]
6565 // 9: ffffff
6566 // 10: gggggg
6567 // 11: hhhhhh
6568 // 12:
6569 // 13: [[footer]]
6570 // 14: [[file
6571 // 15: header
6572 // 16: section]]
6573 // 17: bbbbbb
6574 // 18: cccccc
6575 // 19: dddddd
6576 // 20: [[footer]]
6577 let window = cx.add_window(|cx| {
6578 let buffer = MultiBuffer::build_multi(
6579 [
6580 (
6581 &(sample_text(8, 6, 'a') + "\n"),
6582 vec![
6583 Point::new(0, 0)..Point::new(3, 0),
6584 Point::new(4, 0)..Point::new(7, 0),
6585 ],
6586 ),
6587 (
6588 &(sample_text(8, 6, 'a') + "\n"),
6589 vec![Point::new(1, 0)..Point::new(3, 0)],
6590 ),
6591 ],
6592 cx,
6593 );
6594 Editor::new(EditorMode::Full, buffer, None, true, cx)
6595 });
6596 let editor = window.root(cx).unwrap();
6597 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6598 let _state = window.update(cx, |editor, cx| {
6599 editor.cursor_shape = CursorShape::Block;
6600 editor.change_selections(None, cx, |s| {
6601 s.select_display_ranges([
6602 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
6603 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
6604 ]);
6605 });
6606 });
6607
6608 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6609 EditorElement::new(&editor, style)
6610 });
6611 assert_eq!(state.selections.len(), 1);
6612 let local_selections = &state.selections[0].1;
6613 assert_eq!(local_selections.len(), 2);
6614
6615 // moves cursor on excerpt boundary back a line
6616 // and doesn't allow selection to bleed through
6617 assert_eq!(
6618 local_selections[0].range,
6619 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
6620 );
6621 assert_eq!(
6622 local_selections[0].head,
6623 DisplayPoint::new(DisplayRow(6), 0)
6624 );
6625 // moves cursor on buffer boundary back two lines
6626 // and doesn't allow selection to bleed through
6627 assert_eq!(
6628 local_selections[1].range,
6629 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
6630 );
6631 assert_eq!(
6632 local_selections[1].head,
6633 DisplayPoint::new(DisplayRow(12), 0)
6634 );
6635 }
6636
6637 #[gpui::test]
6638 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
6639 init_test(cx, |_| {});
6640
6641 let window = cx.add_window(|cx| {
6642 let buffer = MultiBuffer::build_simple("", cx);
6643 Editor::new(EditorMode::Full, buffer, None, true, cx)
6644 });
6645 let cx = &mut VisualTestContext::from_window(*window, cx);
6646 let editor = window.root(cx).unwrap();
6647 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6648 window
6649 .update(cx, |editor, cx| {
6650 editor.set_placeholder_text("hello", cx);
6651 editor.insert_blocks(
6652 [BlockProperties {
6653 style: BlockStyle::Fixed,
6654 placement: BlockPlacement::Above(Anchor::min()),
6655 height: 3,
6656 render: Arc::new(|cx| div().h(3. * cx.line_height()).into_any()),
6657 priority: 0,
6658 }],
6659 None,
6660 cx,
6661 );
6662
6663 // Blur the editor so that it displays placeholder text.
6664 cx.blur();
6665 })
6666 .unwrap();
6667
6668 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6669 EditorElement::new(&editor, style)
6670 });
6671 assert_eq!(state.position_map.line_layouts.len(), 4);
6672 assert_eq!(
6673 state
6674 .line_numbers
6675 .iter()
6676 .map(Option::is_some)
6677 .collect::<Vec<_>>(),
6678 &[false, false, false, true]
6679 );
6680 }
6681
6682 #[gpui::test]
6683 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
6684 const TAB_SIZE: u32 = 4;
6685
6686 let input_text = "\t \t|\t| a b";
6687 let expected_invisibles = vec![
6688 Invisible::Tab {
6689 line_start_offset: 0,
6690 line_end_offset: TAB_SIZE as usize,
6691 },
6692 Invisible::Whitespace {
6693 line_offset: TAB_SIZE as usize,
6694 },
6695 Invisible::Tab {
6696 line_start_offset: TAB_SIZE as usize + 1,
6697 line_end_offset: TAB_SIZE as usize * 2,
6698 },
6699 Invisible::Tab {
6700 line_start_offset: TAB_SIZE as usize * 2 + 1,
6701 line_end_offset: TAB_SIZE as usize * 3,
6702 },
6703 Invisible::Whitespace {
6704 line_offset: TAB_SIZE as usize * 3 + 1,
6705 },
6706 Invisible::Whitespace {
6707 line_offset: TAB_SIZE as usize * 3 + 3,
6708 },
6709 ];
6710 assert_eq!(
6711 expected_invisibles.len(),
6712 input_text
6713 .chars()
6714 .filter(|initial_char| initial_char.is_whitespace())
6715 .count(),
6716 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
6717 );
6718
6719 for show_line_numbers in [true, false] {
6720 init_test(cx, |s| {
6721 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
6722 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
6723 });
6724
6725 let actual_invisibles = collect_invisibles_from_new_editor(
6726 cx,
6727 EditorMode::Full,
6728 input_text,
6729 px(500.0),
6730 show_line_numbers,
6731 );
6732
6733 assert_eq!(expected_invisibles, actual_invisibles);
6734 }
6735 }
6736
6737 #[gpui::test]
6738 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
6739 init_test(cx, |s| {
6740 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
6741 s.defaults.tab_size = NonZeroU32::new(4);
6742 });
6743
6744 for editor_mode_without_invisibles in [
6745 EditorMode::SingleLine { auto_width: false },
6746 EditorMode::AutoHeight { max_lines: 100 },
6747 ] {
6748 for show_line_numbers in [true, false] {
6749 let invisibles = collect_invisibles_from_new_editor(
6750 cx,
6751 editor_mode_without_invisibles,
6752 "\t\t\t| | a b",
6753 px(500.0),
6754 show_line_numbers,
6755 );
6756 assert!(invisibles.is_empty(),
6757 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
6758 }
6759 }
6760 }
6761
6762 #[gpui::test]
6763 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
6764 let tab_size = 4;
6765 let input_text = "a\tbcd ".repeat(9);
6766 let repeated_invisibles = [
6767 Invisible::Tab {
6768 line_start_offset: 1,
6769 line_end_offset: tab_size as usize,
6770 },
6771 Invisible::Whitespace {
6772 line_offset: tab_size as usize + 3,
6773 },
6774 Invisible::Whitespace {
6775 line_offset: tab_size as usize + 4,
6776 },
6777 Invisible::Whitespace {
6778 line_offset: tab_size as usize + 5,
6779 },
6780 Invisible::Whitespace {
6781 line_offset: tab_size as usize + 6,
6782 },
6783 Invisible::Whitespace {
6784 line_offset: tab_size as usize + 7,
6785 },
6786 ];
6787 let expected_invisibles = std::iter::once(repeated_invisibles)
6788 .cycle()
6789 .take(9)
6790 .flatten()
6791 .collect::<Vec<_>>();
6792 assert_eq!(
6793 expected_invisibles.len(),
6794 input_text
6795 .chars()
6796 .filter(|initial_char| initial_char.is_whitespace())
6797 .count(),
6798 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
6799 );
6800 info!("Expected invisibles: {expected_invisibles:?}");
6801
6802 init_test(cx, |_| {});
6803
6804 // Put the same string with repeating whitespace pattern into editors of various size,
6805 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
6806 let resize_step = 10.0;
6807 let mut editor_width = 200.0;
6808 while editor_width <= 1000.0 {
6809 for show_line_numbers in [true, false] {
6810 update_test_language_settings(cx, |s| {
6811 s.defaults.tab_size = NonZeroU32::new(tab_size);
6812 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
6813 s.defaults.preferred_line_length = Some(editor_width as u32);
6814 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
6815 });
6816
6817 let actual_invisibles = collect_invisibles_from_new_editor(
6818 cx,
6819 EditorMode::Full,
6820 &input_text,
6821 px(editor_width),
6822 show_line_numbers,
6823 );
6824
6825 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
6826 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
6827 let mut i = 0;
6828 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
6829 i = actual_index;
6830 match expected_invisibles.get(i) {
6831 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
6832 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
6833 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
6834 _ => {
6835 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
6836 }
6837 },
6838 None => {
6839 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
6840 }
6841 }
6842 }
6843 let missing_expected_invisibles = &expected_invisibles[i + 1..];
6844 assert!(
6845 missing_expected_invisibles.is_empty(),
6846 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
6847 );
6848
6849 editor_width += resize_step;
6850 }
6851 }
6852 }
6853
6854 fn collect_invisibles_from_new_editor(
6855 cx: &mut TestAppContext,
6856 editor_mode: EditorMode,
6857 input_text: &str,
6858 editor_width: Pixels,
6859 show_line_numbers: bool,
6860 ) -> Vec<Invisible> {
6861 info!(
6862 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
6863 editor_width.0
6864 );
6865 let window = cx.add_window(|cx| {
6866 let buffer = MultiBuffer::build_simple(input_text, cx);
6867 Editor::new(editor_mode, buffer, None, true, cx)
6868 });
6869 let cx = &mut VisualTestContext::from_window(*window, cx);
6870 let editor = window.root(cx).unwrap();
6871
6872 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6873 window
6874 .update(cx, |editor, cx| {
6875 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
6876 editor.set_wrap_width(Some(editor_width), cx);
6877 editor.set_show_line_numbers(show_line_numbers, cx);
6878 })
6879 .unwrap();
6880 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6881 EditorElement::new(&editor, style)
6882 });
6883 state
6884 .position_map
6885 .line_layouts
6886 .iter()
6887 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
6888 .cloned()
6889 .collect()
6890 }
6891}