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