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::open_context_menu);
173 register_action(view, cx, Editor::move_left);
174 register_action(view, cx, Editor::move_right);
175 register_action(view, cx, Editor::move_down);
176 register_action(view, cx, Editor::move_down_by_lines);
177 register_action(view, cx, Editor::select_down_by_lines);
178 register_action(view, cx, Editor::move_up);
179 register_action(view, cx, Editor::move_up_by_lines);
180 register_action(view, cx, Editor::select_up_by_lines);
181 register_action(view, cx, Editor::select_page_down);
182 register_action(view, cx, Editor::select_page_up);
183 register_action(view, cx, Editor::cancel);
184 register_action(view, cx, Editor::newline);
185 register_action(view, cx, Editor::newline_above);
186 register_action(view, cx, Editor::newline_below);
187 register_action(view, cx, Editor::backspace);
188 register_action(view, cx, Editor::delete);
189 register_action(view, cx, Editor::tab);
190 register_action(view, cx, Editor::tab_prev);
191 register_action(view, cx, Editor::indent);
192 register_action(view, cx, Editor::outdent);
193 register_action(view, cx, Editor::autoindent);
194 register_action(view, cx, Editor::delete_line);
195 register_action(view, cx, Editor::join_lines);
196 register_action(view, cx, Editor::sort_lines_case_sensitive);
197 register_action(view, cx, Editor::sort_lines_case_insensitive);
198 register_action(view, cx, Editor::reverse_lines);
199 register_action(view, cx, Editor::shuffle_lines);
200 register_action(view, cx, Editor::convert_to_upper_case);
201 register_action(view, cx, Editor::convert_to_lower_case);
202 register_action(view, cx, Editor::convert_to_title_case);
203 register_action(view, cx, Editor::convert_to_snake_case);
204 register_action(view, cx, Editor::convert_to_kebab_case);
205 register_action(view, cx, Editor::convert_to_upper_camel_case);
206 register_action(view, cx, Editor::convert_to_lower_camel_case);
207 register_action(view, cx, Editor::convert_to_opposite_case);
208 register_action(view, cx, Editor::delete_to_previous_word_start);
209 register_action(view, cx, Editor::delete_to_previous_subword_start);
210 register_action(view, cx, Editor::delete_to_next_word_end);
211 register_action(view, cx, Editor::delete_to_next_subword_end);
212 register_action(view, cx, Editor::delete_to_beginning_of_line);
213 register_action(view, cx, Editor::delete_to_end_of_line);
214 register_action(view, cx, Editor::cut_to_end_of_line);
215 register_action(view, cx, Editor::duplicate_line_up);
216 register_action(view, cx, Editor::duplicate_line_down);
217 register_action(view, cx, Editor::move_line_up);
218 register_action(view, cx, Editor::move_line_down);
219 register_action(view, cx, Editor::transpose);
220 register_action(view, cx, Editor::rewrap);
221 register_action(view, cx, Editor::cut);
222 register_action(view, cx, Editor::kill_ring_cut);
223 register_action(view, cx, Editor::kill_ring_yank);
224 register_action(view, cx, Editor::copy);
225 register_action(view, cx, Editor::paste);
226 register_action(view, cx, Editor::undo);
227 register_action(view, cx, Editor::redo);
228 register_action(view, cx, Editor::move_page_up);
229 register_action(view, cx, Editor::move_page_down);
230 register_action(view, cx, Editor::next_screen);
231 register_action(view, cx, Editor::scroll_cursor_top);
232 register_action(view, cx, Editor::scroll_cursor_center);
233 register_action(view, cx, Editor::scroll_cursor_bottom);
234 register_action(view, cx, Editor::scroll_cursor_center_top_bottom);
235 register_action(view, cx, |editor, _: &LineDown, cx| {
236 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
237 });
238 register_action(view, cx, |editor, _: &LineUp, cx| {
239 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
240 });
241 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
242 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
243 });
244 register_action(view, cx, |editor, HandleInput(text): &HandleInput, cx| {
245 if text.is_empty() {
246 return;
247 }
248 editor.handle_input(text, cx);
249 });
250 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
251 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
252 });
253 register_action(view, cx, |editor, _: &PageDown, cx| {
254 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
255 });
256 register_action(view, cx, |editor, _: &PageUp, cx| {
257 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
258 });
259 register_action(view, cx, Editor::move_to_previous_word_start);
260 register_action(view, cx, Editor::move_to_previous_subword_start);
261 register_action(view, cx, Editor::move_to_next_word_end);
262 register_action(view, cx, Editor::move_to_next_subword_end);
263 register_action(view, cx, Editor::move_to_beginning_of_line);
264 register_action(view, cx, Editor::move_to_end_of_line);
265 register_action(view, cx, Editor::move_to_start_of_paragraph);
266 register_action(view, cx, Editor::move_to_end_of_paragraph);
267 register_action(view, cx, Editor::move_to_beginning);
268 register_action(view, cx, Editor::move_to_end);
269 register_action(view, cx, Editor::select_up);
270 register_action(view, cx, Editor::select_down);
271 register_action(view, cx, Editor::select_left);
272 register_action(view, cx, Editor::select_right);
273 register_action(view, cx, Editor::select_to_previous_word_start);
274 register_action(view, cx, Editor::select_to_previous_subword_start);
275 register_action(view, cx, Editor::select_to_next_word_end);
276 register_action(view, cx, Editor::select_to_next_subword_end);
277 register_action(view, cx, Editor::select_to_beginning_of_line);
278 register_action(view, cx, Editor::select_to_end_of_line);
279 register_action(view, cx, Editor::select_to_start_of_paragraph);
280 register_action(view, cx, Editor::select_to_end_of_paragraph);
281 register_action(view, cx, Editor::select_to_beginning);
282 register_action(view, cx, Editor::select_to_end);
283 register_action(view, cx, Editor::select_all);
284 register_action(view, cx, |editor, action, cx| {
285 editor.select_all_matches(action, cx).log_err();
286 });
287 register_action(view, cx, Editor::select_line);
288 register_action(view, cx, Editor::split_selection_into_lines);
289 register_action(view, cx, Editor::add_selection_above);
290 register_action(view, cx, Editor::add_selection_below);
291 register_action(view, cx, |editor, action, cx| {
292 editor.select_next(action, cx).log_err();
293 });
294 register_action(view, cx, |editor, action, cx| {
295 editor.select_previous(action, cx).log_err();
296 });
297 register_action(view, cx, Editor::toggle_comments);
298 register_action(view, cx, Editor::select_larger_syntax_node);
299 register_action(view, cx, Editor::select_smaller_syntax_node);
300 register_action(view, cx, Editor::select_enclosing_symbol);
301 register_action(view, cx, Editor::move_to_enclosing_bracket);
302 register_action(view, cx, Editor::undo_selection);
303 register_action(view, cx, Editor::redo_selection);
304 if !view.read(cx).is_singleton(cx) {
305 register_action(view, cx, Editor::expand_excerpts);
306 register_action(view, cx, Editor::expand_excerpts_up);
307 register_action(view, cx, Editor::expand_excerpts_down);
308 }
309 register_action(view, cx, Editor::go_to_diagnostic);
310 register_action(view, cx, Editor::go_to_prev_diagnostic);
311 register_action(view, cx, Editor::go_to_next_hunk);
312 register_action(view, cx, Editor::go_to_prev_hunk);
313 register_action(view, cx, |editor, a, cx| {
314 editor.go_to_definition(a, cx).detach_and_log_err(cx);
315 });
316 register_action(view, cx, |editor, a, cx| {
317 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
318 });
319 register_action(view, cx, |editor, a, cx| {
320 editor.go_to_declaration(a, cx).detach_and_log_err(cx);
321 });
322 register_action(view, cx, |editor, a, cx| {
323 editor.go_to_declaration_split(a, cx).detach_and_log_err(cx);
324 });
325 register_action(view, cx, |editor, a, cx| {
326 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
327 });
328 register_action(view, cx, |editor, a, cx| {
329 editor
330 .go_to_implementation_split(a, cx)
331 .detach_and_log_err(cx);
332 });
333 register_action(view, cx, |editor, a, cx| {
334 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
335 });
336 register_action(view, cx, |editor, a, cx| {
337 editor
338 .go_to_type_definition_split(a, cx)
339 .detach_and_log_err(cx);
340 });
341 register_action(view, cx, Editor::open_url);
342 register_action(view, cx, Editor::open_file);
343 register_action(view, cx, Editor::fold);
344 register_action(view, cx, Editor::fold_at_level);
345 register_action(view, cx, Editor::fold_all);
346 register_action(view, cx, Editor::fold_function_bodies);
347 register_action(view, cx, Editor::fold_at);
348 register_action(view, cx, Editor::fold_recursive);
349 register_action(view, cx, Editor::toggle_fold);
350 register_action(view, cx, Editor::toggle_fold_recursive);
351 register_action(view, cx, Editor::unfold_lines);
352 register_action(view, cx, Editor::unfold_recursive);
353 register_action(view, cx, Editor::unfold_all);
354 register_action(view, cx, Editor::unfold_at);
355 register_action(view, cx, Editor::fold_selected_ranges);
356 register_action(view, cx, Editor::show_completions);
357 register_action(view, cx, Editor::toggle_code_actions);
358 register_action(view, cx, Editor::open_excerpts);
359 register_action(view, cx, Editor::open_excerpts_in_split);
360 register_action(view, cx, Editor::open_proposed_changes_editor);
361 register_action(view, cx, Editor::toggle_soft_wrap);
362 register_action(view, cx, Editor::toggle_tab_bar);
363 register_action(view, cx, Editor::toggle_line_numbers);
364 register_action(view, cx, Editor::toggle_relative_line_numbers);
365 register_action(view, cx, Editor::toggle_indent_guides);
366 register_action(view, cx, Editor::toggle_inlay_hints);
367 register_action(view, cx, Editor::toggle_inline_completions);
368 register_action(view, cx, hover_popover::hover);
369 register_action(view, cx, Editor::reveal_in_finder);
370 register_action(view, cx, Editor::copy_path);
371 register_action(view, cx, Editor::copy_relative_path);
372 register_action(view, cx, Editor::copy_highlight_json);
373 register_action(view, cx, Editor::copy_permalink_to_line);
374 register_action(view, cx, Editor::open_permalink_to_line);
375 register_action(view, cx, Editor::copy_file_location);
376 register_action(view, cx, Editor::toggle_git_blame);
377 register_action(view, cx, Editor::toggle_git_blame_inline);
378 register_action(view, cx, Editor::toggle_hunk_diff);
379 register_action(view, cx, Editor::expand_all_hunk_diffs);
380 register_action(view, cx, |editor, action, cx| {
381 if let Some(task) = editor.format(action, cx) {
382 task.detach_and_log_err(cx);
383 } else {
384 cx.propagate();
385 }
386 });
387 register_action(view, cx, |editor, action, cx| {
388 if let Some(task) = editor.format_selections(action, cx) {
389 task.detach_and_log_err(cx);
390 } else {
391 cx.propagate();
392 }
393 });
394 register_action(view, cx, Editor::restart_language_server);
395 register_action(view, cx, Editor::cancel_language_server_work);
396 register_action(view, cx, Editor::show_character_palette);
397 register_action(view, cx, |editor, action, cx| {
398 if let Some(task) = editor.confirm_completion(action, cx) {
399 task.detach_and_log_err(cx);
400 } else {
401 cx.propagate();
402 }
403 });
404 register_action(view, cx, |editor, action, cx| {
405 if let Some(task) = editor.compose_completion(action, cx) {
406 task.detach_and_log_err(cx);
407 } else {
408 cx.propagate();
409 }
410 });
411 register_action(view, cx, |editor, action, cx| {
412 if let Some(task) = editor.confirm_code_action(action, cx) {
413 task.detach_and_log_err(cx);
414 } else {
415 cx.propagate();
416 }
417 });
418 register_action(view, cx, |editor, action, cx| {
419 if let Some(task) = editor.rename(action, cx) {
420 task.detach_and_log_err(cx);
421 } else {
422 cx.propagate();
423 }
424 });
425 register_action(view, cx, |editor, action, cx| {
426 if let Some(task) = editor.confirm_rename(action, cx) {
427 task.detach_and_log_err(cx);
428 } else {
429 cx.propagate();
430 }
431 });
432 register_action(view, cx, |editor, action, cx| {
433 if let Some(task) = editor.find_all_references(action, cx) {
434 task.detach_and_log_err(cx);
435 } else {
436 cx.propagate();
437 }
438 });
439 register_action(view, cx, Editor::show_signature_help);
440 register_action(view, cx, Editor::next_inline_completion);
441 register_action(view, cx, Editor::previous_inline_completion);
442 register_action(view, cx, Editor::show_inline_completion);
443 register_action(view, cx, Editor::context_menu_first);
444 register_action(view, cx, Editor::context_menu_prev);
445 register_action(view, cx, Editor::context_menu_next);
446 register_action(view, cx, Editor::context_menu_last);
447 register_action(view, cx, Editor::display_cursor_names);
448 register_action(view, cx, Editor::unique_lines_case_insensitive);
449 register_action(view, cx, Editor::unique_lines_case_sensitive);
450 register_action(view, cx, Editor::accept_partial_inline_completion);
451 register_action(view, cx, Editor::accept_inline_completion);
452 register_action(view, cx, Editor::revert_file);
453 register_action(view, cx, Editor::revert_selected_hunks);
454 register_action(view, cx, Editor::apply_all_diff_hunks);
455 register_action(view, cx, Editor::apply_selected_diff_hunks);
456 register_action(view, cx, Editor::open_active_item_in_terminal);
457 register_action(view, cx, Editor::reload_file);
458 register_action(view, cx, Editor::spawn_nearest_task);
459 register_action(view, cx, Editor::insert_uuid_v4);
460 register_action(view, cx, Editor::insert_uuid_v7);
461 }
462
463 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
464 let position_map = layout.position_map.clone();
465 cx.on_key_event({
466 let editor = self.editor.clone();
467 let text_hitbox = layout.text_hitbox.clone();
468 move |event: &ModifiersChangedEvent, phase, cx| {
469 if phase != DispatchPhase::Bubble {
470 return;
471 }
472 editor.update(cx, |editor, cx| {
473 if editor.hover_state.focused(cx) {
474 return;
475 }
476 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
477 })
478 }
479 });
480 }
481
482 fn modifiers_changed(
483 editor: &mut Editor,
484 event: &ModifiersChangedEvent,
485 position_map: &PositionMap,
486 text_hitbox: &Hitbox,
487 cx: &mut ViewContext<Editor>,
488 ) {
489 let mouse_position = cx.mouse_position();
490 if !text_hitbox.is_hovered(cx) {
491 return;
492 }
493
494 editor.update_hovered_link(
495 position_map.point_for_position(text_hitbox.bounds, mouse_position),
496 &position_map.snapshot,
497 event.modifiers,
498 cx,
499 )
500 }
501
502 fn mouse_left_down(
503 editor: &mut Editor,
504 event: &MouseDownEvent,
505 hovered_hunk: Option<HoveredHunk>,
506 position_map: &PositionMap,
507 text_hitbox: &Hitbox,
508 gutter_hitbox: &Hitbox,
509 cx: &mut ViewContext<Editor>,
510 ) {
511 if cx.default_prevented() {
512 return;
513 }
514
515 let mut click_count = event.click_count;
516 let mut modifiers = event.modifiers;
517
518 if let Some(hovered_hunk) = hovered_hunk {
519 editor.toggle_hovered_hunk(&hovered_hunk, cx);
520 cx.notify();
521 return;
522 } else if gutter_hitbox.is_hovered(cx) {
523 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
524 } else if !text_hitbox.is_hovered(cx) {
525 return;
526 }
527
528 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
529 match EditorSettings::get_global(cx).double_click_in_multibuffer {
530 DoubleClickInMultibuffer::Select => {
531 // do nothing special on double click, all selection logic is below
532 }
533 DoubleClickInMultibuffer::Open => {
534 if modifiers.alt {
535 // if double click is made with alt, pretend it's a regular double click without opening and alt,
536 // and run the selection logic.
537 modifiers.alt = false;
538 } else {
539 // if double click is made without alt, open the corresponding excerp
540 editor.open_excerpts(&OpenExcerpts, cx);
541 return;
542 }
543 }
544 }
545 }
546
547 let point_for_position =
548 position_map.point_for_position(text_hitbox.bounds, event.position);
549 let position = point_for_position.previous_valid;
550 if modifiers.shift && modifiers.alt {
551 editor.select(
552 SelectPhase::BeginColumnar {
553 position,
554 reset: false,
555 goal_column: point_for_position.exact_unclipped.column(),
556 },
557 cx,
558 );
559 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
560 {
561 editor.select(
562 SelectPhase::Extend {
563 position,
564 click_count,
565 },
566 cx,
567 );
568 } else {
569 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
570 let multi_cursor_modifier = match multi_cursor_setting {
571 MultiCursorModifier::Alt => modifiers.alt,
572 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
573 };
574 editor.select(
575 SelectPhase::Begin {
576 position,
577 add: multi_cursor_modifier,
578 click_count,
579 },
580 cx,
581 );
582 }
583
584 cx.stop_propagation();
585 }
586
587 fn mouse_right_down(
588 editor: &mut Editor,
589 event: &MouseDownEvent,
590 position_map: &PositionMap,
591 text_hitbox: &Hitbox,
592 cx: &mut ViewContext<Editor>,
593 ) {
594 if !text_hitbox.is_hovered(cx) {
595 return;
596 }
597 let point_for_position =
598 position_map.point_for_position(text_hitbox.bounds, event.position);
599 mouse_context_menu::deploy_context_menu(
600 editor,
601 Some(event.position),
602 point_for_position.previous_valid,
603 cx,
604 );
605 cx.stop_propagation();
606 }
607
608 fn mouse_middle_down(
609 editor: &mut Editor,
610 event: &MouseDownEvent,
611 position_map: &PositionMap,
612 text_hitbox: &Hitbox,
613 cx: &mut ViewContext<Editor>,
614 ) {
615 if !text_hitbox.is_hovered(cx) || cx.default_prevented() {
616 return;
617 }
618
619 let point_for_position =
620 position_map.point_for_position(text_hitbox.bounds, event.position);
621 let position = point_for_position.previous_valid;
622
623 editor.select(
624 SelectPhase::BeginColumnar {
625 position,
626 reset: true,
627 goal_column: point_for_position.exact_unclipped.column(),
628 },
629 cx,
630 );
631 }
632
633 fn mouse_up(
634 editor: &mut Editor,
635 event: &MouseUpEvent,
636 position_map: &PositionMap,
637 text_hitbox: &Hitbox,
638 cx: &mut ViewContext<Editor>,
639 ) {
640 let end_selection = editor.has_pending_selection();
641 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
642
643 if end_selection {
644 editor.select(SelectPhase::End, cx);
645 }
646
647 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
648 let multi_cursor_modifier = match multi_cursor_setting {
649 MultiCursorModifier::Alt => event.modifiers.secondary(),
650 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
651 };
652
653 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
654 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
655 editor.handle_click_hovered_link(point, event.modifiers, cx);
656
657 cx.stop_propagation();
658 } else if end_selection && pending_nonempty_selections {
659 cx.stop_propagation();
660 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
661 && event.button == MouseButton::Middle
662 {
663 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
664 return;
665 }
666
667 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
668 if EditorSettings::get_global(cx).middle_click_paste {
669 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
670 let point_for_position =
671 position_map.point_for_position(text_hitbox.bounds, event.position);
672 let position = point_for_position.previous_valid;
673
674 editor.select(
675 SelectPhase::Begin {
676 position,
677 add: false,
678 click_count: 1,
679 },
680 cx,
681 );
682 editor.insert(&text, cx);
683 }
684 cx.stop_propagation()
685 }
686 }
687 }
688
689 fn mouse_dragged(
690 editor: &mut Editor,
691 event: &MouseMoveEvent,
692 position_map: &PositionMap,
693 text_bounds: Bounds<Pixels>,
694 cx: &mut ViewContext<Editor>,
695 ) {
696 if !editor.has_pending_selection() {
697 return;
698 }
699
700 let point_for_position = position_map.point_for_position(text_bounds, event.position);
701 let mut scroll_delta = gpui::Point::<f32>::default();
702 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
703 let top = text_bounds.origin.y + vertical_margin;
704 let bottom = text_bounds.lower_left().y - vertical_margin;
705 if event.position.y < top {
706 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
707 }
708 if event.position.y > bottom {
709 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
710 }
711
712 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
713 let left = text_bounds.origin.x + horizontal_margin;
714 let right = text_bounds.upper_right().x - horizontal_margin;
715 if event.position.x < left {
716 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
717 }
718 if event.position.x > right {
719 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
720 }
721
722 editor.select(
723 SelectPhase::Update {
724 position: point_for_position.previous_valid,
725 goal_column: point_for_position.exact_unclipped.column(),
726 scroll_delta,
727 },
728 cx,
729 );
730 }
731
732 fn mouse_moved(
733 editor: &mut Editor,
734 event: &MouseMoveEvent,
735 position_map: &PositionMap,
736 text_hitbox: &Hitbox,
737 gutter_hitbox: &Hitbox,
738 cx: &mut ViewContext<Editor>,
739 ) {
740 let modifiers = event.modifiers;
741 let gutter_hovered = gutter_hitbox.is_hovered(cx);
742 editor.set_gutter_hovered(gutter_hovered, cx);
743
744 // Don't trigger hover popover if mouse is hovering over context menu
745 if text_hitbox.is_hovered(cx) {
746 let point_for_position =
747 position_map.point_for_position(text_hitbox.bounds, event.position);
748
749 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
750
751 if let Some(point) = point_for_position.as_valid() {
752 let anchor = position_map
753 .snapshot
754 .buffer_snapshot
755 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
756 hover_at(editor, Some(anchor), cx);
757 Self::update_visible_cursor(editor, point, position_map, cx);
758 } else {
759 hover_at(editor, None, cx);
760 }
761 } else {
762 editor.hide_hovered_link(cx);
763 hover_at(editor, None, cx);
764 if gutter_hovered {
765 cx.stop_propagation();
766 }
767 }
768 }
769
770 fn update_visible_cursor(
771 editor: &mut Editor,
772 point: DisplayPoint,
773 position_map: &PositionMap,
774 cx: &mut ViewContext<Editor>,
775 ) {
776 let snapshot = &position_map.snapshot;
777 let Some(hub) = editor.collaboration_hub() else {
778 return;
779 };
780 let start = snapshot.display_snapshot.clip_point(
781 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
782 Bias::Left,
783 );
784 let end = snapshot.display_snapshot.clip_point(
785 DisplayPoint::new(
786 point.row(),
787 (point.column() + 1).min(snapshot.line_len(point.row())),
788 ),
789 Bias::Right,
790 );
791
792 let range = snapshot
793 .buffer_snapshot
794 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
795 ..snapshot
796 .buffer_snapshot
797 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
798
799 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
800 return;
801 };
802 let key = crate::HoveredCursor {
803 replica_id: selection.replica_id,
804 selection_id: selection.selection.id,
805 };
806 editor.hovered_cursors.insert(
807 key.clone(),
808 cx.spawn(|editor, mut cx| async move {
809 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
810 editor
811 .update(&mut cx, |editor, cx| {
812 editor.hovered_cursors.remove(&key);
813 cx.notify();
814 })
815 .ok();
816 }),
817 );
818 cx.notify()
819 }
820
821 #[allow(clippy::too_many_arguments)]
822 fn layout_selections(
823 &self,
824 start_anchor: Anchor,
825 end_anchor: Anchor,
826 local_selections: &[Selection<Point>],
827 snapshot: &EditorSnapshot,
828 start_row: DisplayRow,
829 end_row: DisplayRow,
830 cx: &mut WindowContext,
831 ) -> (
832 Vec<(PlayerColor, Vec<SelectionLayout>)>,
833 BTreeMap<DisplayRow, bool>,
834 Option<DisplayPoint>,
835 ) {
836 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
837 let mut active_rows = BTreeMap::new();
838 let mut newest_selection_head = None;
839 self.editor.update(cx, |editor, cx| {
840 if editor.show_local_selections {
841 let mut layouts = Vec::new();
842 let newest = editor.selections.newest(cx);
843 for selection in local_selections.iter().cloned() {
844 let is_empty = selection.start == selection.end;
845 let is_newest = selection == newest;
846
847 let layout = SelectionLayout::new(
848 selection,
849 editor.selections.line_mode,
850 editor.cursor_shape,
851 &snapshot.display_snapshot,
852 is_newest,
853 editor.leader_peer_id.is_none(),
854 None,
855 );
856 if is_newest {
857 newest_selection_head = Some(layout.head);
858 }
859
860 for row in cmp::max(layout.active_rows.start.0, start_row.0)
861 ..=cmp::min(layout.active_rows.end.0, end_row.0)
862 {
863 let contains_non_empty_selection =
864 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
865 *contains_non_empty_selection |= !is_empty;
866 }
867 layouts.push(layout);
868 }
869
870 let player = if editor.read_only(cx) {
871 cx.theme().players().read_only()
872 } else {
873 self.style.local_player
874 };
875
876 selections.push((player, layouts));
877 }
878
879 if let Some(collaboration_hub) = &editor.collaboration_hub {
880 // When following someone, render the local selections in their color.
881 if let Some(leader_id) = editor.leader_peer_id {
882 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
883 {
884 if let Some(participant_index) = collaboration_hub
885 .user_participant_indices(cx)
886 .get(&collaborator.user_id)
887 {
888 if let Some((local_selection_style, _)) = selections.first_mut() {
889 *local_selection_style = cx
890 .theme()
891 .players()
892 .color_for_participant(participant_index.0);
893 }
894 }
895 }
896 }
897
898 let mut remote_selections = HashMap::default();
899 for selection in snapshot.remote_selections_in_range(
900 &(start_anchor..end_anchor),
901 collaboration_hub.as_ref(),
902 cx,
903 ) {
904 let selection_style =
905 Self::get_participant_color(selection.participant_index, cx);
906
907 // Don't re-render the leader's selections, since the local selections
908 // match theirs.
909 if Some(selection.peer_id) == editor.leader_peer_id {
910 continue;
911 }
912 let key = HoveredCursor {
913 replica_id: selection.replica_id,
914 selection_id: selection.selection.id,
915 };
916
917 let is_shown =
918 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
919
920 remote_selections
921 .entry(selection.replica_id)
922 .or_insert((selection_style, Vec::new()))
923 .1
924 .push(SelectionLayout::new(
925 selection.selection,
926 selection.line_mode,
927 selection.cursor_shape,
928 &snapshot.display_snapshot,
929 false,
930 false,
931 if is_shown { selection.user_name } else { None },
932 ));
933 }
934
935 selections.extend(remote_selections.into_values());
936 } else if !editor.is_focused(cx) && editor.show_cursor_when_unfocused {
937 let player = if editor.read_only(cx) {
938 cx.theme().players().read_only()
939 } else {
940 self.style.local_player
941 };
942 let layouts = snapshot
943 .buffer_snapshot
944 .selections_in_range(&(start_anchor..end_anchor), true)
945 .map(move |(_, line_mode, cursor_shape, selection)| {
946 SelectionLayout::new(
947 selection,
948 line_mode,
949 cursor_shape,
950 &snapshot.display_snapshot,
951 false,
952 false,
953 None,
954 )
955 })
956 .collect::<Vec<_>>();
957 selections.push((player, layouts));
958 }
959 });
960 (selections, active_rows, newest_selection_head)
961 }
962
963 fn collect_cursors(
964 &self,
965 snapshot: &EditorSnapshot,
966 cx: &mut WindowContext,
967 ) -> Vec<(DisplayPoint, Hsla)> {
968 let editor = self.editor.read(cx);
969 let mut cursors = Vec::new();
970 let mut skip_local = false;
971 let mut add_cursor = |anchor: Anchor, color| {
972 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
973 };
974 // Remote cursors
975 if let Some(collaboration_hub) = &editor.collaboration_hub {
976 for remote_selection in snapshot.remote_selections_in_range(
977 &(Anchor::min()..Anchor::max()),
978 collaboration_hub.deref(),
979 cx,
980 ) {
981 let color = Self::get_participant_color(remote_selection.participant_index, cx);
982 add_cursor(remote_selection.selection.head(), color.cursor);
983 if Some(remote_selection.peer_id) == editor.leader_peer_id {
984 skip_local = true;
985 }
986 }
987 }
988 // Local cursors
989 if !skip_local {
990 let color = cx.theme().players().local().cursor;
991 editor.selections.disjoint.iter().for_each(|selection| {
992 add_cursor(selection.head(), color);
993 });
994 if let Some(ref selection) = editor.selections.pending_anchor() {
995 add_cursor(selection.head(), color);
996 }
997 }
998 cursors
999 }
1000
1001 #[allow(clippy::too_many_arguments)]
1002 fn layout_visible_cursors(
1003 &self,
1004 snapshot: &EditorSnapshot,
1005 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1006 block_start_rows: &HashSet<DisplayRow>,
1007 visible_display_row_range: Range<DisplayRow>,
1008 line_layouts: &[LineWithInvisibles],
1009 text_hitbox: &Hitbox,
1010 content_origin: gpui::Point<Pixels>,
1011 scroll_position: gpui::Point<f32>,
1012 scroll_pixel_position: gpui::Point<Pixels>,
1013 line_height: Pixels,
1014 em_width: Pixels,
1015 autoscroll_containing_element: bool,
1016 cx: &mut WindowContext,
1017 ) -> Vec<CursorLayout> {
1018 let mut autoscroll_bounds = None;
1019 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1020 let mut cursors = Vec::new();
1021 for (player_color, selections) in selections {
1022 for selection in selections {
1023 let cursor_position = selection.head;
1024
1025 let in_range = visible_display_row_range.contains(&cursor_position.row());
1026 if (selection.is_local && !editor.show_local_cursors(cx))
1027 || !in_range
1028 || block_start_rows.contains(&cursor_position.row())
1029 {
1030 continue;
1031 }
1032
1033 let cursor_row_layout = &line_layouts
1034 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1035 let cursor_column = cursor_position.column() as usize;
1036
1037 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1038 let mut block_width =
1039 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1040 if block_width == Pixels::ZERO {
1041 block_width = em_width;
1042 }
1043 let block_text = if let CursorShape::Block = selection.cursor_shape {
1044 snapshot
1045 .grapheme_at(cursor_position)
1046 .or_else(|| {
1047 if cursor_column == 0 {
1048 snapshot.placeholder_text().and_then(|s| {
1049 s.graphemes(true).next().map(|s| s.to_string().into())
1050 })
1051 } else {
1052 None
1053 }
1054 })
1055 .and_then(|text| {
1056 let len = text.len();
1057
1058 let font = cursor_row_layout
1059 .font_id_for_index(cursor_column)
1060 .and_then(|cursor_font_id| {
1061 cx.text_system().get_font_for_id(cursor_font_id)
1062 })
1063 .unwrap_or(self.style.text.font());
1064
1065 // Invert the text color for the block cursor. Ensure that the text
1066 // color is opaque enough to be visible against the background color.
1067 //
1068 // 0.75 is an arbitrary threshold to determine if the background color is
1069 // opaque enough to use as a text color.
1070 //
1071 // TODO: In the future we should ensure themes have a `text_inverse` color.
1072 let color = if cx.theme().colors().editor_background.a < 0.75 {
1073 match cx.theme().appearance {
1074 Appearance::Dark => Hsla::black(),
1075 Appearance::Light => Hsla::white(),
1076 }
1077 } else {
1078 cx.theme().colors().editor_background
1079 };
1080
1081 cx.text_system()
1082 .shape_line(
1083 text,
1084 cursor_row_layout.font_size,
1085 &[TextRun {
1086 len,
1087 font,
1088 color,
1089 background_color: None,
1090 strikethrough: None,
1091 underline: None,
1092 }],
1093 )
1094 .log_err()
1095 })
1096 } else {
1097 None
1098 };
1099
1100 let x = cursor_character_x - scroll_pixel_position.x;
1101 let y = (cursor_position.row().as_f32()
1102 - scroll_pixel_position.y / line_height)
1103 * line_height;
1104 if selection.is_newest {
1105 editor.pixel_position_of_newest_cursor = Some(point(
1106 text_hitbox.origin.x + x + block_width / 2.,
1107 text_hitbox.origin.y + y + line_height / 2.,
1108 ));
1109
1110 if autoscroll_containing_element {
1111 let top = text_hitbox.origin.y
1112 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1113 * line_height;
1114 let left = text_hitbox.origin.x
1115 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1116 .max(0.)
1117 * em_width;
1118
1119 let bottom = text_hitbox.origin.y
1120 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1121 * line_height;
1122 let right = text_hitbox.origin.x
1123 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1124 * em_width;
1125
1126 autoscroll_bounds =
1127 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1128 }
1129 }
1130
1131 let mut cursor = CursorLayout {
1132 color: player_color.cursor,
1133 block_width,
1134 origin: point(x, y),
1135 line_height,
1136 shape: selection.cursor_shape,
1137 block_text,
1138 cursor_name: None,
1139 };
1140 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1141 string: name,
1142 color: self.style.background,
1143 is_top_row: cursor_position.row().0 == 0,
1144 });
1145 cursor.layout(content_origin, cursor_name, cx);
1146 cursors.push(cursor);
1147 }
1148 }
1149 cursors
1150 });
1151
1152 if let Some(bounds) = autoscroll_bounds {
1153 cx.request_autoscroll(bounds);
1154 }
1155
1156 cursor_layouts
1157 }
1158
1159 fn layout_scrollbar(
1160 &self,
1161 snapshot: &EditorSnapshot,
1162 bounds: Bounds<Pixels>,
1163 scroll_position: gpui::Point<f32>,
1164 rows_per_page: f32,
1165 non_visible_cursors: bool,
1166 cx: &mut WindowContext,
1167 ) -> Option<ScrollbarLayout> {
1168 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1169 let show_scrollbars = match scrollbar_settings.show {
1170 ShowScrollbar::Auto => {
1171 let editor = self.editor.read(cx);
1172 let is_singleton = editor.is_singleton(cx);
1173 // Git
1174 (is_singleton && scrollbar_settings.git_diff && !snapshot.diff_map.is_empty())
1175 ||
1176 // Buffer Search Results
1177 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1178 ||
1179 // Selected Symbol Occurrences
1180 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1181 ||
1182 // Diagnostics
1183 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1184 ||
1185 // Cursors out of sight
1186 non_visible_cursors
1187 ||
1188 // Scrollmanager
1189 editor.scroll_manager.scrollbars_visible()
1190 }
1191 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1192 ShowScrollbar::Always => true,
1193 ShowScrollbar::Never => false,
1194 };
1195 if snapshot.mode != EditorMode::Full {
1196 return None;
1197 }
1198
1199 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1200
1201 // If a drag took place after we started dragging the scrollbar,
1202 // cancel the scrollbar drag.
1203 if cx.has_active_drag() {
1204 self.editor.update(cx, |editor, cx| {
1205 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1206 });
1207 }
1208
1209 let track_bounds = Bounds::from_corners(
1210 point(self.scrollbar_left(&bounds), bounds.origin.y),
1211 point(bounds.lower_right().x, bounds.lower_left().y),
1212 );
1213
1214 let settings = EditorSettings::get_global(cx);
1215 let scroll_beyond_last_line: f32 = match settings.scroll_beyond_last_line {
1216 ScrollBeyondLastLine::OnePage => rows_per_page,
1217 ScrollBeyondLastLine::Off => 1.0,
1218 ScrollBeyondLastLine::VerticalScrollMargin => 1.0 + settings.vertical_scroll_margin,
1219 };
1220 let total_rows =
1221 (snapshot.max_point().row().as_f32() + scroll_beyond_last_line).max(rows_per_page);
1222 let height = bounds.size.height;
1223 let px_per_row = height / total_rows;
1224 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1225 let row_height = (height - thumb_height) / (total_rows - rows_per_page).max(0.);
1226
1227 Some(ScrollbarLayout {
1228 hitbox: cx.insert_hitbox(track_bounds, false),
1229 visible_row_range,
1230 row_height,
1231 visible: show_scrollbars,
1232 thumb_height,
1233 })
1234 }
1235
1236 #[allow(clippy::too_many_arguments)]
1237 fn prepaint_crease_toggles(
1238 &self,
1239 crease_toggles: &mut [Option<AnyElement>],
1240 line_height: Pixels,
1241 gutter_dimensions: &GutterDimensions,
1242 gutter_settings: crate::editor_settings::Gutter,
1243 scroll_pixel_position: gpui::Point<Pixels>,
1244 gutter_hitbox: &Hitbox,
1245 cx: &mut WindowContext,
1246 ) {
1247 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1248 if let Some(crease_toggle) = crease_toggle {
1249 debug_assert!(gutter_settings.folds);
1250 let available_space = size(
1251 AvailableSpace::MinContent,
1252 AvailableSpace::Definite(line_height * 0.55),
1253 );
1254 let crease_toggle_size = crease_toggle.layout_as_root(available_space, cx);
1255
1256 let position = point(
1257 gutter_dimensions.width - gutter_dimensions.right_padding,
1258 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1259 );
1260 let centering_offset = point(
1261 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1262 (line_height - crease_toggle_size.height) / 2.,
1263 );
1264 let origin = gutter_hitbox.origin + position + centering_offset;
1265 crease_toggle.prepaint_as_root(origin, available_space, cx);
1266 }
1267 }
1268 }
1269
1270 #[allow(clippy::too_many_arguments)]
1271 fn prepaint_crease_trailers(
1272 &self,
1273 trailers: Vec<Option<AnyElement>>,
1274 lines: &[LineWithInvisibles],
1275 line_height: Pixels,
1276 content_origin: gpui::Point<Pixels>,
1277 scroll_pixel_position: gpui::Point<Pixels>,
1278 em_width: Pixels,
1279 cx: &mut WindowContext,
1280 ) -> Vec<Option<CreaseTrailerLayout>> {
1281 trailers
1282 .into_iter()
1283 .enumerate()
1284 .map(|(ix, element)| {
1285 let mut element = element?;
1286 let available_space = size(
1287 AvailableSpace::MinContent,
1288 AvailableSpace::Definite(line_height),
1289 );
1290 let size = element.layout_as_root(available_space, cx);
1291
1292 let line = &lines[ix];
1293 let padding = if line.width == Pixels::ZERO {
1294 Pixels::ZERO
1295 } else {
1296 4. * em_width
1297 };
1298 let position = point(
1299 scroll_pixel_position.x + line.width + padding,
1300 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1301 );
1302 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1303 let origin = content_origin + position + centering_offset;
1304 element.prepaint_as_root(origin, available_space, cx);
1305 Some(CreaseTrailerLayout {
1306 element,
1307 bounds: Bounds::new(origin, size),
1308 })
1309 })
1310 .collect()
1311 }
1312
1313 // Folds contained in a hunk are ignored apart from shrinking visual size
1314 // If a fold contains any hunks then that fold line is marked as modified
1315 fn layout_gutter_git_hunks(
1316 &self,
1317 line_height: Pixels,
1318 gutter_hitbox: &Hitbox,
1319 display_rows: Range<DisplayRow>,
1320 anchor_range: Range<Anchor>,
1321 snapshot: &EditorSnapshot,
1322 cx: &mut WindowContext,
1323 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1324 let buffer_snapshot = &snapshot.buffer_snapshot;
1325 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1326 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1327
1328 let git_gutter_setting = ProjectSettings::get_global(cx)
1329 .git
1330 .git_gutter
1331 .unwrap_or_default();
1332
1333 self.editor.update(cx, |editor, cx| {
1334 let expanded_hunks = &editor.diff_map.hunks;
1335 let expanded_hunks_start_ix = expanded_hunks
1336 .binary_search_by(|hunk| {
1337 hunk.hunk_range
1338 .end
1339 .cmp(&anchor_range.start, &buffer_snapshot)
1340 .then(Ordering::Less)
1341 })
1342 .unwrap_err();
1343 let mut expanded_hunks = expanded_hunks[expanded_hunks_start_ix..].iter().peekable();
1344
1345 let mut display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)> = editor
1346 .diff_map
1347 .snapshot
1348 .diff_hunks_in_range(buffer_start..buffer_end, &buffer_snapshot)
1349 .filter_map(|hunk| {
1350 let display_hunk = diff_hunk_to_display(&hunk, snapshot);
1351
1352 if let DisplayDiffHunk::Unfolded {
1353 multi_buffer_range,
1354 status,
1355 ..
1356 } = &display_hunk
1357 {
1358 let mut is_expanded = false;
1359 while let Some(expanded_hunk) = expanded_hunks.peek() {
1360 match expanded_hunk
1361 .hunk_range
1362 .start
1363 .cmp(&multi_buffer_range.start, &buffer_snapshot)
1364 {
1365 Ordering::Less => {
1366 expanded_hunks.next();
1367 }
1368 Ordering::Equal => {
1369 is_expanded = true;
1370 break;
1371 }
1372 Ordering::Greater => {
1373 break;
1374 }
1375 }
1376 }
1377 match status {
1378 DiffHunkStatus::Added => {}
1379 DiffHunkStatus::Modified => {}
1380 DiffHunkStatus::Removed => {
1381 if is_expanded {
1382 return None;
1383 }
1384 }
1385 }
1386 }
1387
1388 Some(display_hunk)
1389 })
1390 .dedup()
1391 .map(|hunk| (hunk, None))
1392 .collect();
1393
1394 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1395 for (hunk, hitbox) in &mut display_hunks {
1396 if let DisplayDiffHunk::Unfolded { .. } = hunk {
1397 let hunk_bounds = Self::diff_hunk_bounds(
1398 snapshot,
1399 line_height,
1400 gutter_hitbox.bounds,
1401 &hunk,
1402 );
1403 *hitbox = Some(cx.insert_hitbox(hunk_bounds, true));
1404 };
1405 }
1406 }
1407
1408 display_hunks
1409 })
1410 }
1411
1412 #[allow(clippy::too_many_arguments)]
1413 fn layout_inline_blame(
1414 &self,
1415 display_row: DisplayRow,
1416 display_snapshot: &DisplaySnapshot,
1417 line_layout: &LineWithInvisibles,
1418 crease_trailer: Option<&CreaseTrailerLayout>,
1419 em_width: Pixels,
1420 content_origin: gpui::Point<Pixels>,
1421 scroll_pixel_position: gpui::Point<Pixels>,
1422 line_height: Pixels,
1423 cx: &mut WindowContext,
1424 ) -> Option<AnyElement> {
1425 if !self
1426 .editor
1427 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1428 {
1429 return None;
1430 }
1431
1432 let workspace = self
1433 .editor
1434 .read(cx)
1435 .workspace
1436 .as_ref()
1437 .map(|(w, _)| w.clone());
1438
1439 let display_point = DisplayPoint::new(display_row, 0);
1440 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1441
1442 let blame = self.editor.read(cx).blame.clone()?;
1443 let blame_entry = blame
1444 .update(cx, |blame, cx| {
1445 blame.blame_for_rows([Some(buffer_row)], cx).next()
1446 })
1447 .flatten()?;
1448
1449 let mut element =
1450 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1451
1452 let start_y = content_origin.y
1453 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1454
1455 let start_x = {
1456 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1457
1458 let line_end = if let Some(crease_trailer) = crease_trailer {
1459 crease_trailer.bounds.right()
1460 } else {
1461 content_origin.x - scroll_pixel_position.x + line_layout.width
1462 };
1463 let padded_line_end = line_end + em_width * INLINE_BLAME_PADDING_EM_WIDTHS;
1464
1465 let min_column_in_pixels = ProjectSettings::get_global(cx)
1466 .git
1467 .inline_blame
1468 .and_then(|settings| settings.min_column)
1469 .map(|col| self.column_pixels(col as usize, cx))
1470 .unwrap_or(px(0.));
1471 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1472
1473 cmp::max(padded_line_end, min_start)
1474 };
1475
1476 let absolute_offset = point(start_x, start_y);
1477 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), cx);
1478
1479 Some(element)
1480 }
1481
1482 #[allow(clippy::too_many_arguments)]
1483 fn layout_blame_entries(
1484 &self,
1485 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1486 em_width: Pixels,
1487 scroll_position: gpui::Point<f32>,
1488 line_height: Pixels,
1489 gutter_hitbox: &Hitbox,
1490 max_width: Option<Pixels>,
1491 cx: &mut WindowContext,
1492 ) -> Option<Vec<AnyElement>> {
1493 if !self
1494 .editor
1495 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1496 {
1497 return None;
1498 }
1499
1500 let blame = self.editor.read(cx).blame.clone()?;
1501 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1502 blame.blame_for_rows(buffer_rows, cx).collect()
1503 });
1504
1505 let width = if let Some(max_width) = max_width {
1506 AvailableSpace::Definite(max_width)
1507 } else {
1508 AvailableSpace::MaxContent
1509 };
1510 let scroll_top = scroll_position.y * line_height;
1511 let start_x = em_width;
1512
1513 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1514
1515 let shaped_lines = blamed_rows
1516 .into_iter()
1517 .enumerate()
1518 .flat_map(|(ix, blame_entry)| {
1519 if let Some(blame_entry) = blame_entry {
1520 let mut element = render_blame_entry(
1521 ix,
1522 &blame,
1523 blame_entry,
1524 &self.style,
1525 &mut last_used_color,
1526 self.editor.clone(),
1527 cx,
1528 );
1529
1530 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1531 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1532
1533 element.prepaint_as_root(
1534 absolute_offset,
1535 size(width, AvailableSpace::MinContent),
1536 cx,
1537 );
1538
1539 Some(element)
1540 } else {
1541 None
1542 }
1543 })
1544 .collect();
1545
1546 Some(shaped_lines)
1547 }
1548
1549 #[allow(clippy::too_many_arguments)]
1550 fn layout_indent_guides(
1551 &self,
1552 content_origin: gpui::Point<Pixels>,
1553 text_origin: gpui::Point<Pixels>,
1554 visible_buffer_range: Range<MultiBufferRow>,
1555 scroll_pixel_position: gpui::Point<Pixels>,
1556 line_height: Pixels,
1557 snapshot: &DisplaySnapshot,
1558 cx: &mut WindowContext,
1559 ) -> Option<Vec<IndentGuideLayout>> {
1560 let indent_guides = self.editor.update(cx, |editor, cx| {
1561 editor.indent_guides(visible_buffer_range, snapshot, cx)
1562 })?;
1563
1564 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1565 editor
1566 .find_active_indent_guide_indices(&indent_guides, snapshot, cx)
1567 .unwrap_or_default()
1568 });
1569
1570 Some(
1571 indent_guides
1572 .into_iter()
1573 .enumerate()
1574 .filter_map(|(i, indent_guide)| {
1575 let single_indent_width =
1576 self.column_pixels(indent_guide.tab_size as usize, cx);
1577 let total_width = single_indent_width * indent_guide.depth as f32;
1578 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1579 if start_x >= text_origin.x {
1580 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1581 indent_guide.multibuffer_row_range.clone(),
1582 line_height,
1583 snapshot,
1584 );
1585
1586 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1587
1588 Some(IndentGuideLayout {
1589 origin: point(start_x, start_y),
1590 length,
1591 single_indent_width,
1592 depth: indent_guide.depth,
1593 active: active_indent_guide_indices.contains(&i),
1594 settings: indent_guide.settings,
1595 })
1596 } else {
1597 None
1598 }
1599 })
1600 .collect(),
1601 )
1602 }
1603
1604 fn calculate_indent_guide_bounds(
1605 row_range: Range<MultiBufferRow>,
1606 line_height: Pixels,
1607 snapshot: &DisplaySnapshot,
1608 ) -> (gpui::Pixels, gpui::Pixels) {
1609 let start_point = Point::new(row_range.start.0, 0);
1610 let end_point = Point::new(row_range.end.0, 0);
1611
1612 let row_range = start_point.to_display_point(snapshot).row()
1613 ..end_point.to_display_point(snapshot).row();
1614
1615 let mut prev_line = start_point;
1616 prev_line.row = prev_line.row.saturating_sub(1);
1617 let prev_line = prev_line.to_display_point(snapshot).row();
1618
1619 let mut cons_line = end_point;
1620 cons_line.row += 1;
1621 let cons_line = cons_line.to_display_point(snapshot).row();
1622
1623 let mut offset_y = row_range.start.0 as f32 * line_height;
1624 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1625
1626 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1627 if row_range.end == cons_line {
1628 length += line_height;
1629 }
1630
1631 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1632 // we want to extend the indent guide to the start of the block.
1633 let mut block_height = 0;
1634 let mut block_offset = 0;
1635 let mut found_excerpt_header = false;
1636 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1637 if matches!(block, Block::ExcerptBoundary { .. }) {
1638 found_excerpt_header = true;
1639 break;
1640 }
1641 block_offset += block.height();
1642 block_height += block.height();
1643 }
1644 if !found_excerpt_header {
1645 offset_y -= block_offset as f32 * line_height;
1646 length += block_height as f32 * line_height;
1647 }
1648
1649 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1650 // we want to ensure that the indent guide stops before the excerpt header.
1651 let mut block_height = 0;
1652 let mut found_excerpt_header = false;
1653 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1654 if matches!(block, Block::ExcerptBoundary { .. }) {
1655 found_excerpt_header = true;
1656 }
1657 block_height += block.height();
1658 }
1659 if found_excerpt_header {
1660 length -= block_height as f32 * line_height;
1661 }
1662
1663 (offset_y, length)
1664 }
1665
1666 #[allow(clippy::too_many_arguments)]
1667 fn layout_run_indicators(
1668 &self,
1669 line_height: Pixels,
1670 range: Range<DisplayRow>,
1671 scroll_pixel_position: gpui::Point<Pixels>,
1672 gutter_dimensions: &GutterDimensions,
1673 gutter_hitbox: &Hitbox,
1674 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1675 snapshot: &EditorSnapshot,
1676 cx: &mut WindowContext,
1677 ) -> Vec<AnyElement> {
1678 self.editor.update(cx, |editor, cx| {
1679 let active_task_indicator_row =
1680 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1681 deployed_from_indicator,
1682 actions,
1683 ..
1684 })) = editor.context_menu.read().as_ref()
1685 {
1686 actions
1687 .tasks
1688 .as_ref()
1689 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1690 .or(*deployed_from_indicator)
1691 } else {
1692 None
1693 };
1694
1695 editor
1696 .tasks
1697 .iter()
1698 .filter_map(|(_, tasks)| {
1699 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1700 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1701 let display_row = multibuffer_point.to_display_point(snapshot).row();
1702 if range.start > display_row || range.end < display_row {
1703 return None;
1704 }
1705 if snapshot.is_line_folded(multibuffer_row) {
1706 // Skip folded indicators, unless it's the starting line of a fold.
1707 if multibuffer_row
1708 .0
1709 .checked_sub(1)
1710 .map_or(false, |previous_row| {
1711 snapshot.is_line_folded(MultiBufferRow(previous_row))
1712 })
1713 {
1714 return None;
1715 }
1716 }
1717 let button = editor.render_run_indicator(
1718 &self.style,
1719 Some(display_row) == active_task_indicator_row,
1720 display_row,
1721 cx,
1722 );
1723
1724 let button = prepaint_gutter_button(
1725 button,
1726 display_row,
1727 line_height,
1728 gutter_dimensions,
1729 scroll_pixel_position,
1730 gutter_hitbox,
1731 rows_with_hunk_bounds,
1732 cx,
1733 );
1734 Some(button)
1735 })
1736 .collect_vec()
1737 })
1738 }
1739
1740 #[allow(clippy::too_many_arguments)]
1741 fn layout_code_actions_indicator(
1742 &self,
1743 line_height: Pixels,
1744 newest_selection_head: DisplayPoint,
1745 scroll_pixel_position: gpui::Point<Pixels>,
1746 gutter_dimensions: &GutterDimensions,
1747 gutter_hitbox: &Hitbox,
1748 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1749 cx: &mut WindowContext,
1750 ) -> Option<AnyElement> {
1751 let mut active = false;
1752 let mut button = None;
1753 let row = newest_selection_head.row();
1754 self.editor.update(cx, |editor, cx| {
1755 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1756 deployed_from_indicator,
1757 ..
1758 })) = editor.context_menu.read().as_ref()
1759 {
1760 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1761 };
1762 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1763 });
1764
1765 let button = prepaint_gutter_button(
1766 button?,
1767 row,
1768 line_height,
1769 gutter_dimensions,
1770 scroll_pixel_position,
1771 gutter_hitbox,
1772 rows_with_hunk_bounds,
1773 cx,
1774 );
1775
1776 Some(button)
1777 }
1778
1779 fn get_participant_color(
1780 participant_index: Option<ParticipantIndex>,
1781 cx: &WindowContext,
1782 ) -> PlayerColor {
1783 if let Some(index) = participant_index {
1784 cx.theme().players().color_for_participant(index.0)
1785 } else {
1786 cx.theme().players().absent()
1787 }
1788 }
1789
1790 fn calculate_relative_line_numbers(
1791 &self,
1792 snapshot: &EditorSnapshot,
1793 rows: &Range<DisplayRow>,
1794 relative_to: Option<DisplayRow>,
1795 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1796 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1797 let Some(relative_to) = relative_to else {
1798 return relative_rows;
1799 };
1800
1801 let start = rows.start.min(relative_to);
1802 let end = rows.end.max(relative_to);
1803
1804 let buffer_rows = snapshot
1805 .buffer_rows(start)
1806 .take(1 + end.minus(start) as usize)
1807 .collect::<Vec<_>>();
1808
1809 let head_idx = relative_to.minus(start);
1810 let mut delta = 1;
1811 let mut i = head_idx + 1;
1812 while i < buffer_rows.len() as u32 {
1813 if buffer_rows[i as usize].is_some() {
1814 if rows.contains(&DisplayRow(i + start.0)) {
1815 relative_rows.insert(DisplayRow(i + start.0), delta);
1816 }
1817 delta += 1;
1818 }
1819 i += 1;
1820 }
1821 delta = 1;
1822 i = head_idx.min(buffer_rows.len() as u32 - 1);
1823 while i > 0 && buffer_rows[i as usize].is_none() {
1824 i -= 1;
1825 }
1826
1827 while i > 0 {
1828 i -= 1;
1829 if buffer_rows[i as usize].is_some() {
1830 if rows.contains(&DisplayRow(i + start.0)) {
1831 relative_rows.insert(DisplayRow(i + start.0), delta);
1832 }
1833 delta += 1;
1834 }
1835 }
1836
1837 relative_rows
1838 }
1839
1840 fn layout_line_numbers(
1841 &self,
1842 rows: Range<DisplayRow>,
1843 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1844 active_rows: &BTreeMap<DisplayRow, bool>,
1845 newest_selection_head: Option<DisplayPoint>,
1846 snapshot: &EditorSnapshot,
1847 cx: &mut WindowContext,
1848 ) -> Vec<Option<ShapedLine>> {
1849 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
1850 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
1851 });
1852 if !include_line_numbers {
1853 return Vec::new();
1854 }
1855
1856 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
1857 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1858 let newest = editor.selections.newest::<Point>(cx);
1859 SelectionLayout::new(
1860 newest,
1861 editor.selections.line_mode,
1862 editor.cursor_shape,
1863 &snapshot.display_snapshot,
1864 true,
1865 true,
1866 None,
1867 )
1868 .head
1869 });
1870 let is_relative = editor.should_use_relative_line_numbers(cx);
1871 (newest_selection_head, is_relative)
1872 });
1873 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1874
1875 let relative_to = if is_relative {
1876 Some(newest_selection_head.row())
1877 } else {
1878 None
1879 };
1880 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1881 let mut line_number = String::new();
1882 buffer_rows
1883 .into_iter()
1884 .enumerate()
1885 .map(|(ix, multibuffer_row)| {
1886 let multibuffer_row = multibuffer_row?;
1887 let display_row = DisplayRow(rows.start.0 + ix as u32);
1888 let color = if active_rows.contains_key(&display_row) {
1889 cx.theme().colors().editor_active_line_number
1890 } else {
1891 cx.theme().colors().editor_line_number
1892 };
1893 line_number.clear();
1894 let default_number = multibuffer_row.0 + 1;
1895 let number = relative_rows
1896 .get(&DisplayRow(ix as u32 + rows.start.0))
1897 .unwrap_or(&default_number);
1898 write!(&mut line_number, "{number}").unwrap();
1899 let run = TextRun {
1900 len: line_number.len(),
1901 font: self.style.text.font(),
1902 color,
1903 background_color: None,
1904 underline: None,
1905 strikethrough: None,
1906 };
1907 let shaped_line = cx
1908 .text_system()
1909 .shape_line(line_number.clone().into(), font_size, &[run])
1910 .unwrap();
1911 Some(shaped_line)
1912 })
1913 .collect()
1914 }
1915
1916 fn layout_crease_toggles(
1917 &self,
1918 rows: Range<DisplayRow>,
1919 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1920 active_rows: &BTreeMap<DisplayRow, bool>,
1921 snapshot: &EditorSnapshot,
1922 cx: &mut WindowContext,
1923 ) -> Vec<Option<AnyElement>> {
1924 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
1925 && snapshot.mode == EditorMode::Full
1926 && self.editor.read(cx).is_singleton(cx);
1927 if include_fold_statuses {
1928 buffer_rows
1929 .into_iter()
1930 .enumerate()
1931 .map(|(ix, row)| {
1932 if let Some(multibuffer_row) = row {
1933 let display_row = DisplayRow(rows.start.0 + ix as u32);
1934 let active = active_rows.contains_key(&display_row);
1935 snapshot.render_crease_toggle(
1936 multibuffer_row,
1937 active,
1938 self.editor.clone(),
1939 cx,
1940 )
1941 } else {
1942 None
1943 }
1944 })
1945 .collect()
1946 } else {
1947 Vec::new()
1948 }
1949 }
1950
1951 fn layout_crease_trailers(
1952 &self,
1953 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1954 snapshot: &EditorSnapshot,
1955 cx: &mut WindowContext,
1956 ) -> Vec<Option<AnyElement>> {
1957 buffer_rows
1958 .into_iter()
1959 .map(|row| {
1960 if let Some(multibuffer_row) = row {
1961 snapshot.render_crease_trailer(multibuffer_row, cx)
1962 } else {
1963 None
1964 }
1965 })
1966 .collect()
1967 }
1968
1969 fn layout_lines(
1970 rows: Range<DisplayRow>,
1971 snapshot: &EditorSnapshot,
1972 style: &EditorStyle,
1973 editor_width: Pixels,
1974 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
1975 cx: &mut WindowContext,
1976 ) -> Vec<LineWithInvisibles> {
1977 if rows.start >= rows.end {
1978 return Vec::new();
1979 }
1980
1981 // Show the placeholder when the editor is empty
1982 if snapshot.is_empty() {
1983 let font_size = style.text.font_size.to_pixels(cx.rem_size());
1984 let placeholder_color = cx.theme().colors().text_placeholder;
1985 let placeholder_text = snapshot.placeholder_text();
1986
1987 let placeholder_lines = placeholder_text
1988 .as_ref()
1989 .map_or("", AsRef::as_ref)
1990 .split('\n')
1991 .skip(rows.start.0 as usize)
1992 .chain(iter::repeat(""))
1993 .take(rows.len());
1994 placeholder_lines
1995 .filter_map(move |line| {
1996 let run = TextRun {
1997 len: line.len(),
1998 font: style.text.font(),
1999 color: placeholder_color,
2000 background_color: None,
2001 underline: Default::default(),
2002 strikethrough: None,
2003 };
2004 cx.text_system()
2005 .shape_line(line.to_string().into(), font_size, &[run])
2006 .log_err()
2007 })
2008 .map(|line| LineWithInvisibles {
2009 width: line.width,
2010 len: line.len,
2011 fragments: smallvec![LineFragment::Text(line)],
2012 invisibles: Vec::new(),
2013 font_size,
2014 })
2015 .collect()
2016 } else {
2017 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2018 LineWithInvisibles::from_chunks(
2019 chunks,
2020 &style,
2021 MAX_LINE_LEN,
2022 rows.len(),
2023 snapshot.mode,
2024 editor_width,
2025 is_row_soft_wrapped,
2026 cx,
2027 )
2028 }
2029 }
2030
2031 fn prepaint_lines(
2032 &self,
2033 start_row: DisplayRow,
2034 line_layouts: &mut [LineWithInvisibles],
2035 line_height: Pixels,
2036 scroll_pixel_position: gpui::Point<Pixels>,
2037 content_origin: gpui::Point<Pixels>,
2038 cx: &mut WindowContext,
2039 ) -> SmallVec<[AnyElement; 1]> {
2040 let mut line_elements = SmallVec::new();
2041 for (ix, line) in line_layouts.iter_mut().enumerate() {
2042 let row = start_row + DisplayRow(ix as u32);
2043 line.prepaint(
2044 line_height,
2045 scroll_pixel_position,
2046 row,
2047 content_origin,
2048 &mut line_elements,
2049 cx,
2050 );
2051 }
2052 line_elements
2053 }
2054
2055 #[allow(clippy::too_many_arguments)]
2056 fn render_block(
2057 &self,
2058 block: &Block,
2059 available_width: AvailableSpace,
2060 block_id: BlockId,
2061 block_row_start: DisplayRow,
2062 snapshot: &EditorSnapshot,
2063 text_x: Pixels,
2064 rows: &Range<DisplayRow>,
2065 line_layouts: &[LineWithInvisibles],
2066 gutter_dimensions: &GutterDimensions,
2067 line_height: Pixels,
2068 em_width: Pixels,
2069 text_hitbox: &Hitbox,
2070 editor_width: Pixels,
2071 scroll_width: &mut Pixels,
2072 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2073 selections: &[Selection<Point>],
2074 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2075 cx: &mut WindowContext,
2076 ) -> (AnyElement, Size<Pixels>) {
2077 let mut element = match block {
2078 Block::Custom(block) => {
2079 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2080 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2081 let align_to = block_start.to_display_point(snapshot);
2082 let anchor_x = text_x
2083 + if rows.contains(&align_to.row()) {
2084 line_layouts[align_to.row().minus(rows.start) as usize]
2085 .x_for_index(align_to.column() as usize)
2086 } else {
2087 layout_line(
2088 align_to.row(),
2089 snapshot,
2090 &self.style,
2091 editor_width,
2092 is_row_soft_wrapped,
2093 cx,
2094 )
2095 .x_for_index(align_to.column() as usize)
2096 };
2097
2098 let selected = selections
2099 .binary_search_by(|selection| {
2100 if selection.end <= block_start {
2101 Ordering::Less
2102 } else if selection.start >= block_end {
2103 Ordering::Greater
2104 } else {
2105 Ordering::Equal
2106 }
2107 })
2108 .is_ok();
2109
2110 div()
2111 .size_full()
2112 .child(block.render(&mut BlockContext {
2113 context: cx,
2114 anchor_x,
2115 gutter_dimensions,
2116 line_height,
2117 em_width,
2118 block_id,
2119 selected,
2120 max_width: text_hitbox.size.width.max(*scroll_width),
2121 editor_style: &self.style,
2122 }))
2123 .into_any()
2124 }
2125
2126 Block::ExcerptBoundary {
2127 prev_excerpt,
2128 next_excerpt,
2129 show_excerpt_controls,
2130 starts_new_buffer,
2131 height,
2132 ..
2133 } => {
2134 let icon_offset = gutter_dimensions.width
2135 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2136
2137 let header_padding = px(6.0);
2138
2139 let mut result = v_flex().id(block_id).w_full();
2140
2141 if let Some(prev_excerpt) = prev_excerpt {
2142 if *show_excerpt_controls {
2143 result = result.child(
2144 h_flex()
2145 .w(icon_offset)
2146 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2147 .flex_none()
2148 .justify_end()
2149 .child(self.render_expand_excerpt_button(
2150 prev_excerpt.id,
2151 ExpandExcerptDirection::Down,
2152 IconName::ArrowDownFromLine,
2153 cx,
2154 )),
2155 );
2156 }
2157 }
2158
2159 if let Some(next_excerpt) = next_excerpt {
2160 let buffer = &next_excerpt.buffer;
2161 let range = &next_excerpt.range;
2162 let jump_data = {
2163 let jump_path =
2164 project::File::from_dyn(buffer.file()).map(|file| ProjectPath {
2165 worktree_id: file.worktree_id(cx),
2166 path: file.path.clone(),
2167 });
2168 let jump_anchor = range
2169 .primary
2170 .as_ref()
2171 .map_or(range.context.start, |primary| primary.start);
2172
2173 let excerpt_start = range.context.start;
2174 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
2175 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
2176 0
2177 } else {
2178 let excerpt_start_row =
2179 language::ToPoint::to_point(&jump_anchor, buffer).row;
2180 jump_position.row - excerpt_start_row
2181 };
2182 let line_offset_from_top =
2183 block_row_start.0 + *height + offset_from_excerpt_start
2184 - snapshot
2185 .scroll_anchor
2186 .scroll_position(&snapshot.display_snapshot)
2187 .y as u32;
2188 JumpData {
2189 excerpt_id: next_excerpt.id,
2190 anchor: jump_anchor,
2191 position: language::ToPoint::to_point(&jump_anchor, buffer),
2192 path: jump_path,
2193 line_offset_from_top,
2194 }
2195 };
2196
2197 if *starts_new_buffer {
2198 let include_root = self
2199 .editor
2200 .read(cx)
2201 .project
2202 .as_ref()
2203 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2204 .unwrap_or_default();
2205 let path = buffer.resolve_file_path(cx, include_root);
2206 let filename = path
2207 .as_ref()
2208 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2209 let parent_path = path.as_ref().and_then(|path| {
2210 Some(path.parent()?.to_string_lossy().to_string() + "/")
2211 });
2212
2213 result = result.child(
2214 div()
2215 .px(header_padding)
2216 .pt(header_padding)
2217 .w_full()
2218 .h(FILE_HEADER_HEIGHT as f32 * cx.line_height())
2219 .child(
2220 h_flex()
2221 .id("path header block")
2222 .size_full()
2223 .flex_basis(Length::Definite(DefiniteLength::Fraction(
2224 0.667,
2225 )))
2226 .px(gpui::px(12.))
2227 .rounded_md()
2228 .shadow_md()
2229 .border_1()
2230 .border_color(cx.theme().colors().border)
2231 .bg(cx.theme().colors().editor_subheader_background)
2232 .justify_between()
2233 .hover(|style| style.bg(cx.theme().colors().element_hover))
2234 .child(
2235 h_flex().gap_3().child(
2236 h_flex()
2237 .gap_2()
2238 .child(
2239 filename
2240 .map(SharedString::from)
2241 .unwrap_or_else(|| "untitled".into()),
2242 )
2243 .when_some(parent_path, |then, path| {
2244 then.child(div().child(path).text_color(
2245 cx.theme().colors().text_muted,
2246 ))
2247 }),
2248 ),
2249 )
2250 .child(Icon::new(IconName::ArrowUpRight))
2251 .cursor_pointer()
2252 .tooltip(|cx| {
2253 Tooltip::for_action("Jump to File", &OpenExcerpts, cx)
2254 })
2255 .on_mouse_down(MouseButton::Left, |_, cx| {
2256 cx.stop_propagation()
2257 })
2258 .on_click(cx.listener_for(&self.editor, {
2259 move |editor, e: &ClickEvent, cx| {
2260 editor.open_excerpts_common(
2261 Some(jump_data.clone()),
2262 e.down.modifiers.secondary(),
2263 cx,
2264 );
2265 }
2266 })),
2267 ),
2268 );
2269 if *show_excerpt_controls {
2270 result = result.child(
2271 h_flex()
2272 .w(icon_offset)
2273 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2274 .flex_none()
2275 .justify_end()
2276 .child(self.render_expand_excerpt_button(
2277 next_excerpt.id,
2278 ExpandExcerptDirection::Up,
2279 IconName::ArrowUpFromLine,
2280 cx,
2281 )),
2282 );
2283 }
2284 } else {
2285 let editor = self.editor.clone();
2286 result = result.child(
2287 h_flex()
2288 .id("excerpt header block")
2289 .group("excerpt-jump-action")
2290 .justify_start()
2291 .w_full()
2292 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2293 .relative()
2294 .child(
2295 div()
2296 .top(px(0.))
2297 .absolute()
2298 .w_full()
2299 .h_px()
2300 .bg(cx.theme().colors().border_variant)
2301 .group_hover("excerpt-jump-action", |style| {
2302 style.bg(cx.theme().colors().border)
2303 }),
2304 )
2305 .cursor_pointer()
2306 .on_click({
2307 let jump_data = jump_data.clone();
2308 cx.listener_for(&self.editor, {
2309 let jump_data = jump_data.clone();
2310 move |editor, e: &ClickEvent, cx| {
2311 cx.stop_propagation();
2312 editor.open_excerpts_common(
2313 Some(jump_data.clone()),
2314 e.down.modifiers.secondary(),
2315 cx,
2316 );
2317 }
2318 })
2319 })
2320 .tooltip({
2321 let jump_data = jump_data.clone();
2322 move |cx| {
2323 let jump_message = format!(
2324 "Jump to {}:L{}",
2325 match &jump_data.path {
2326 Some(project_path) =>
2327 project_path.path.display().to_string(),
2328 None => {
2329 let editor = editor.read(cx);
2330 editor
2331 .file_at(jump_data.position, cx)
2332 .map(|file| {
2333 file.full_path(cx).display().to_string()
2334 })
2335 .or_else(|| {
2336 Some(
2337 editor
2338 .tab_description(0, cx)?
2339 .to_string(),
2340 )
2341 })
2342 .unwrap_or_else(|| {
2343 "Unknown buffer".to_string()
2344 })
2345 }
2346 },
2347 jump_data.position.row + 1
2348 );
2349 Tooltip::for_action(jump_message, &OpenExcerpts, cx)
2350 }
2351 })
2352 .child(
2353 h_flex()
2354 .w(icon_offset)
2355 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2356 * cx.line_height())
2357 .flex_none()
2358 .justify_end()
2359 .child(if *show_excerpt_controls {
2360 self.render_expand_excerpt_button(
2361 next_excerpt.id,
2362 ExpandExcerptDirection::Up,
2363 IconName::ArrowUpFromLine,
2364 cx,
2365 )
2366 } else {
2367 ButtonLike::new("jump-icon")
2368 .style(ButtonStyle::Transparent)
2369 .child(
2370 svg()
2371 .path(IconName::ArrowUpRight.path())
2372 .size(IconSize::XSmall.rems())
2373 .text_color(
2374 cx.theme().colors().border_variant,
2375 )
2376 .group_hover(
2377 "excerpt-jump-action",
2378 |style| {
2379 style.text_color(
2380 cx.theme().colors().border,
2381 )
2382 },
2383 ),
2384 )
2385 }),
2386 ),
2387 );
2388 }
2389 }
2390
2391 result.into_any()
2392 }
2393 };
2394
2395 // Discover the element's content height, then round up to the nearest multiple of line height.
2396 let preliminary_size =
2397 element.layout_as_root(size(available_width, AvailableSpace::MinContent), cx);
2398 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2399 let final_size = if preliminary_size.height == quantized_height {
2400 preliminary_size
2401 } else {
2402 element.layout_as_root(size(available_width, quantized_height.into()), cx)
2403 };
2404
2405 if let BlockId::Custom(custom_block_id) = block_id {
2406 if block.height() > 0 {
2407 let element_height_in_lines =
2408 ((final_size.height / line_height).ceil() as u32).max(1);
2409 if element_height_in_lines != block.height() {
2410 resized_blocks.insert(custom_block_id, element_height_in_lines);
2411 }
2412 }
2413 }
2414
2415 (element, final_size)
2416 }
2417
2418 fn render_expand_excerpt_button(
2419 &self,
2420 excerpt_id: ExcerptId,
2421 direction: ExpandExcerptDirection,
2422 icon: IconName,
2423 cx: &mut WindowContext,
2424 ) -> ButtonLike {
2425 ButtonLike::new("expand-icon")
2426 .style(ButtonStyle::Transparent)
2427 .child(
2428 svg()
2429 .path(icon.path())
2430 .size(IconSize::XSmall.rems())
2431 .text_color(cx.theme().colors().editor_line_number)
2432 .group("")
2433 .hover(|style| style.text_color(cx.theme().colors().editor_active_line_number)),
2434 )
2435 .on_click(cx.listener_for(&self.editor, {
2436 move |editor, _, cx| {
2437 editor.expand_excerpt(excerpt_id, direction, cx);
2438 }
2439 }))
2440 .tooltip({
2441 move |cx| Tooltip::for_action("Expand Excerpt", &ExpandExcerpts { lines: 0 }, cx)
2442 })
2443 }
2444
2445 #[allow(clippy::too_many_arguments)]
2446 fn render_blocks(
2447 &self,
2448 rows: Range<DisplayRow>,
2449 snapshot: &EditorSnapshot,
2450 hitbox: &Hitbox,
2451 text_hitbox: &Hitbox,
2452 editor_width: Pixels,
2453 scroll_width: &mut Pixels,
2454 gutter_dimensions: &GutterDimensions,
2455 em_width: Pixels,
2456 text_x: Pixels,
2457 line_height: Pixels,
2458 line_layouts: &[LineWithInvisibles],
2459 selections: &[Selection<Point>],
2460 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2461 cx: &mut WindowContext,
2462 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2463 let (fixed_blocks, non_fixed_blocks) = snapshot
2464 .blocks_in_range(rows.clone())
2465 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2466
2467 let mut focused_block = self
2468 .editor
2469 .update(cx, |editor, _| editor.take_focused_block());
2470 let mut fixed_block_max_width = Pixels::ZERO;
2471 let mut blocks = Vec::new();
2472 let mut resized_blocks = HashMap::default();
2473
2474 for (row, block) in fixed_blocks {
2475 let block_id = block.id();
2476
2477 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2478 focused_block = None;
2479 }
2480
2481 let (element, element_size) = self.render_block(
2482 block,
2483 AvailableSpace::MinContent,
2484 block_id,
2485 row,
2486 snapshot,
2487 text_x,
2488 &rows,
2489 line_layouts,
2490 gutter_dimensions,
2491 line_height,
2492 em_width,
2493 text_hitbox,
2494 editor_width,
2495 scroll_width,
2496 &mut resized_blocks,
2497 selections,
2498 is_row_soft_wrapped,
2499 cx,
2500 );
2501 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2502 blocks.push(BlockLayout {
2503 id: block_id,
2504 row: Some(row),
2505 element,
2506 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2507 style: BlockStyle::Fixed,
2508 });
2509 }
2510 for (row, block) in non_fixed_blocks {
2511 let style = block.style();
2512 let width = match style {
2513 BlockStyle::Sticky => hitbox.size.width,
2514 BlockStyle::Flex => hitbox
2515 .size
2516 .width
2517 .max(fixed_block_max_width)
2518 .max(gutter_dimensions.width + *scroll_width),
2519 BlockStyle::Fixed => unreachable!(),
2520 };
2521 let block_id = block.id();
2522
2523 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2524 focused_block = None;
2525 }
2526
2527 let (element, element_size) = self.render_block(
2528 block,
2529 width.into(),
2530 block_id,
2531 row,
2532 snapshot,
2533 text_x,
2534 &rows,
2535 line_layouts,
2536 gutter_dimensions,
2537 line_height,
2538 em_width,
2539 text_hitbox,
2540 editor_width,
2541 scroll_width,
2542 &mut resized_blocks,
2543 selections,
2544 is_row_soft_wrapped,
2545 cx,
2546 );
2547
2548 blocks.push(BlockLayout {
2549 id: block_id,
2550 row: Some(row),
2551 element,
2552 available_space: size(width.into(), element_size.height.into()),
2553 style,
2554 });
2555 }
2556
2557 if let Some(focused_block) = focused_block {
2558 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2559 if focus_handle.is_focused(cx) {
2560 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2561 let style = block.style();
2562 let width = match style {
2563 BlockStyle::Fixed => AvailableSpace::MinContent,
2564 BlockStyle::Flex => AvailableSpace::Definite(
2565 hitbox
2566 .size
2567 .width
2568 .max(fixed_block_max_width)
2569 .max(gutter_dimensions.width + *scroll_width),
2570 ),
2571 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2572 };
2573
2574 let (element, element_size) = self.render_block(
2575 &block,
2576 width,
2577 focused_block.id,
2578 rows.end,
2579 snapshot,
2580 text_x,
2581 &rows,
2582 line_layouts,
2583 gutter_dimensions,
2584 line_height,
2585 em_width,
2586 text_hitbox,
2587 editor_width,
2588 scroll_width,
2589 &mut resized_blocks,
2590 selections,
2591 is_row_soft_wrapped,
2592 cx,
2593 );
2594
2595 blocks.push(BlockLayout {
2596 id: block.id(),
2597 row: None,
2598 element,
2599 available_space: size(width, element_size.height.into()),
2600 style,
2601 });
2602 }
2603 }
2604 }
2605 }
2606
2607 if resized_blocks.is_empty() {
2608 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2609 Ok(blocks)
2610 } else {
2611 Err(resized_blocks)
2612 }
2613 }
2614
2615 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2616 /// a restart of rendering for the editor based on the new sizes.
2617 fn layout_blocks(
2618 &self,
2619 blocks: &mut Vec<BlockLayout>,
2620 block_starts: &mut HashSet<DisplayRow>,
2621 hitbox: &Hitbox,
2622 line_height: Pixels,
2623 scroll_pixel_position: gpui::Point<Pixels>,
2624 cx: &mut WindowContext,
2625 ) {
2626 for block in blocks {
2627 let mut origin = if let Some(row) = block.row {
2628 block_starts.insert(row);
2629 hitbox.origin
2630 + point(
2631 Pixels::ZERO,
2632 row.as_f32() * line_height - scroll_pixel_position.y,
2633 )
2634 } else {
2635 // Position the block outside the visible area
2636 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2637 };
2638
2639 if !matches!(block.style, BlockStyle::Sticky) {
2640 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2641 }
2642
2643 let focus_handle = block
2644 .element
2645 .prepaint_as_root(origin, block.available_space, cx);
2646
2647 if let Some(focus_handle) = focus_handle {
2648 self.editor.update(cx, |editor, _cx| {
2649 editor.set_focused_block(FocusedBlock {
2650 id: block.id,
2651 focus_handle: focus_handle.downgrade(),
2652 });
2653 });
2654 }
2655 }
2656 }
2657
2658 #[allow(clippy::too_many_arguments)]
2659 fn layout_context_menu(
2660 &self,
2661 line_height: Pixels,
2662 hitbox: &Hitbox,
2663 text_hitbox: &Hitbox,
2664 content_origin: gpui::Point<Pixels>,
2665 start_row: DisplayRow,
2666 scroll_pixel_position: gpui::Point<Pixels>,
2667 line_layouts: &[LineWithInvisibles],
2668 newest_selection_head: DisplayPoint,
2669 gutter_overshoot: Pixels,
2670 cx: &mut WindowContext,
2671 ) -> bool {
2672 let max_height = cmp::min(
2673 12. * line_height,
2674 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2675 );
2676 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2677 if editor.context_menu_visible() {
2678 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2679 } else {
2680 None
2681 }
2682 }) else {
2683 return false;
2684 };
2685
2686 let context_menu_size = context_menu.layout_as_root(AvailableSpace::min_size(), cx);
2687
2688 let (x, y) = match position {
2689 crate::ContextMenuOrigin::EditorPoint(point) => {
2690 let cursor_row_layout = &line_layouts[point.row().minus(start_row) as usize];
2691 let x = cursor_row_layout.x_for_index(point.column() as usize)
2692 - scroll_pixel_position.x;
2693 let y = point.row().next_row().as_f32() * line_height - scroll_pixel_position.y;
2694 (x, y)
2695 }
2696 crate::ContextMenuOrigin::GutterIndicator(row) => {
2697 // 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
2698 // text field.
2699 let x = -gutter_overshoot;
2700 let y = row.next_row().as_f32() * line_height - scroll_pixel_position.y;
2701 (x, y)
2702 }
2703 };
2704
2705 let mut list_origin = content_origin + point(x, y);
2706 let list_width = context_menu_size.width;
2707 let list_height = context_menu_size.height;
2708
2709 // Snap the right edge of the list to the right edge of the window if
2710 // its horizontal bounds overflow.
2711 if list_origin.x + list_width > cx.viewport_size().width {
2712 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2713 }
2714
2715 if list_origin.y + list_height > text_hitbox.lower_right().y {
2716 list_origin.y -= line_height + list_height;
2717 }
2718
2719 cx.defer_draw(context_menu, list_origin, 1);
2720 true
2721 }
2722
2723 fn layout_mouse_context_menu(
2724 &self,
2725 editor_snapshot: &EditorSnapshot,
2726 visible_range: Range<DisplayRow>,
2727 content_origin: gpui::Point<Pixels>,
2728 cx: &mut WindowContext,
2729 ) -> Option<AnyElement> {
2730 let position = self.editor.update(cx, |editor, cx| {
2731 let visible_start_point = editor.display_to_pixel_point(
2732 DisplayPoint::new(visible_range.start, 0),
2733 editor_snapshot,
2734 cx,
2735 )?;
2736 let visible_end_point = editor.display_to_pixel_point(
2737 DisplayPoint::new(visible_range.end, 0),
2738 editor_snapshot,
2739 cx,
2740 )?;
2741
2742 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
2743 let (source_display_point, position) = match mouse_context_menu.position {
2744 MenuPosition::PinnedToScreen(point) => (None, point),
2745 MenuPosition::PinnedToEditor { source, offset } => {
2746 let source_display_point = source.to_display_point(editor_snapshot);
2747 let source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
2748 let position = content_origin + source_point + offset;
2749 (Some(source_display_point), position)
2750 }
2751 };
2752
2753 let source_included = source_display_point.map_or(true, |source_display_point| {
2754 visible_range
2755 .to_inclusive()
2756 .contains(&source_display_point.row())
2757 });
2758 let position_included =
2759 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
2760 if !source_included && !position_included {
2761 None
2762 } else {
2763 Some(position)
2764 }
2765 })?;
2766
2767 let mut element = self.editor.update(cx, |editor, _| {
2768 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
2769 let context_menu = mouse_context_menu.context_menu.clone();
2770
2771 Some(
2772 deferred(
2773 anchored()
2774 .position(position)
2775 .child(context_menu)
2776 .anchor(AnchorCorner::TopLeft)
2777 .snap_to_window_with_margin(px(8.)),
2778 )
2779 .with_priority(1)
2780 .into_any(),
2781 )
2782 })?;
2783
2784 element.prepaint_as_root(position, AvailableSpace::min_size(), cx);
2785 Some(element)
2786 }
2787
2788 #[allow(clippy::too_many_arguments)]
2789 fn layout_hover_popovers(
2790 &self,
2791 snapshot: &EditorSnapshot,
2792 hitbox: &Hitbox,
2793 text_hitbox: &Hitbox,
2794 visible_display_row_range: Range<DisplayRow>,
2795 content_origin: gpui::Point<Pixels>,
2796 scroll_pixel_position: gpui::Point<Pixels>,
2797 line_layouts: &[LineWithInvisibles],
2798 line_height: Pixels,
2799 em_width: Pixels,
2800 cx: &mut WindowContext,
2801 ) {
2802 struct MeasuredHoverPopover {
2803 element: AnyElement,
2804 size: Size<Pixels>,
2805 horizontal_offset: Pixels,
2806 }
2807
2808 let max_size = size(
2809 (120. * em_width) // Default size
2810 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2811 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2812 (16. * line_height) // Default size
2813 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2814 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2815 );
2816
2817 let hover_popovers = self.editor.update(cx, |editor, cx| {
2818 editor
2819 .hover_state
2820 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
2821 });
2822 let Some((position, hover_popovers)) = hover_popovers else {
2823 return;
2824 };
2825
2826 // This is safe because we check on layout whether the required row is available
2827 let hovered_row_layout =
2828 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
2829
2830 // Compute Hovered Point
2831 let x =
2832 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2833 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
2834 let hovered_point = content_origin + point(x, y);
2835
2836 let mut overall_height = Pixels::ZERO;
2837 let mut measured_hover_popovers = Vec::new();
2838 for mut hover_popover in hover_popovers {
2839 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), cx);
2840 let horizontal_offset =
2841 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2842
2843 overall_height += HOVER_POPOVER_GAP + size.height;
2844
2845 measured_hover_popovers.push(MeasuredHoverPopover {
2846 element: hover_popover,
2847 size,
2848 horizontal_offset,
2849 });
2850 }
2851 overall_height += HOVER_POPOVER_GAP;
2852
2853 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2854 let mut occlusion = div()
2855 .size_full()
2856 .occlude()
2857 .on_mouse_move(|_, cx| cx.stop_propagation())
2858 .into_any_element();
2859 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2860 cx.defer_draw(occlusion, origin, 2);
2861 }
2862
2863 if hovered_point.y > overall_height {
2864 // There is enough space above. Render popovers above the hovered point
2865 let mut current_y = hovered_point.y;
2866 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2867 let size = popover.size;
2868 let popover_origin = point(
2869 hovered_point.x + popover.horizontal_offset,
2870 current_y - size.height,
2871 );
2872
2873 cx.defer_draw(popover.element, popover_origin, 2);
2874 if position != itertools::Position::Last {
2875 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2876 draw_occluder(size.width, origin, cx);
2877 }
2878
2879 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2880 }
2881 } else {
2882 // There is not enough space above. Render popovers below the hovered point
2883 let mut current_y = hovered_point.y + line_height;
2884 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2885 let size = popover.size;
2886 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2887
2888 cx.defer_draw(popover.element, popover_origin, 2);
2889 if position != itertools::Position::Last {
2890 let origin = point(popover_origin.x, popover_origin.y + size.height);
2891 draw_occluder(size.width, origin, cx);
2892 }
2893
2894 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2895 }
2896 }
2897 }
2898
2899 #[allow(clippy::too_many_arguments)]
2900 fn layout_signature_help(
2901 &self,
2902 hitbox: &Hitbox,
2903 content_origin: gpui::Point<Pixels>,
2904 scroll_pixel_position: gpui::Point<Pixels>,
2905 newest_selection_head: Option<DisplayPoint>,
2906 start_row: DisplayRow,
2907 line_layouts: &[LineWithInvisibles],
2908 line_height: Pixels,
2909 em_width: Pixels,
2910 cx: &mut WindowContext,
2911 ) {
2912 if !self.editor.focus_handle(cx).is_focused(cx) {
2913 return;
2914 }
2915 let Some(newest_selection_head) = newest_selection_head else {
2916 return;
2917 };
2918 let selection_row = newest_selection_head.row();
2919 if selection_row < start_row {
2920 return;
2921 }
2922 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
2923 else {
2924 return;
2925 };
2926
2927 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
2928 - scroll_pixel_position.x
2929 + content_origin.x;
2930 let start_y =
2931 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
2932
2933 let max_size = size(
2934 (120. * em_width) // Default size
2935 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2936 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2937 (16. * line_height) // Default size
2938 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2939 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2940 );
2941
2942 let maybe_element = self.editor.update(cx, |editor, cx| {
2943 if let Some(popover) = editor.signature_help_state.popover_mut() {
2944 let element = popover.render(
2945 &self.style,
2946 max_size,
2947 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2948 cx,
2949 );
2950 Some(element)
2951 } else {
2952 None
2953 }
2954 });
2955 if let Some(mut element) = maybe_element {
2956 let window_size = cx.viewport_size();
2957 let size = element.layout_as_root(Size::<AvailableSpace>::default(), cx);
2958 let mut point = point(start_x, start_y - size.height);
2959
2960 // Adjusting to ensure the popover does not overflow in the X-axis direction.
2961 if point.x + size.width >= window_size.width {
2962 point.x = window_size.width - size.width;
2963 }
2964
2965 cx.defer_draw(element, point, 1)
2966 }
2967 }
2968
2969 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2970 cx.paint_layer(layout.hitbox.bounds, |cx| {
2971 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2972 let gutter_bg = cx.theme().colors().editor_gutter_background;
2973 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2974 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2975
2976 if let EditorMode::Full = layout.mode {
2977 let mut active_rows = layout.active_rows.iter().peekable();
2978 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2979 let mut end_row = start_row.0;
2980 while active_rows
2981 .peek()
2982 .map_or(false, |(active_row, has_selection)| {
2983 active_row.0 == end_row + 1
2984 && *has_selection == contains_non_empty_selection
2985 })
2986 {
2987 active_rows.next().unwrap();
2988 end_row += 1;
2989 }
2990
2991 if !contains_non_empty_selection {
2992 let highlight_h_range =
2993 match layout.position_map.snapshot.current_line_highlight {
2994 CurrentLineHighlight::Gutter => Some(Range {
2995 start: layout.hitbox.left(),
2996 end: layout.gutter_hitbox.right(),
2997 }),
2998 CurrentLineHighlight::Line => Some(Range {
2999 start: layout.text_hitbox.bounds.left(),
3000 end: layout.text_hitbox.bounds.right(),
3001 }),
3002 CurrentLineHighlight::All => Some(Range {
3003 start: layout.hitbox.left(),
3004 end: layout.hitbox.right(),
3005 }),
3006 CurrentLineHighlight::None => None,
3007 };
3008 if let Some(range) = highlight_h_range {
3009 let active_line_bg = cx.theme().colors().editor_active_line_background;
3010 let bounds = Bounds {
3011 origin: point(
3012 range.start,
3013 layout.hitbox.origin.y
3014 + (start_row.as_f32() - scroll_top)
3015 * layout.position_map.line_height,
3016 ),
3017 size: size(
3018 range.end - range.start,
3019 layout.position_map.line_height
3020 * (end_row - start_row.0 + 1) as f32,
3021 ),
3022 };
3023 cx.paint_quad(fill(bounds, active_line_bg));
3024 }
3025 }
3026 }
3027
3028 let mut paint_highlight =
3029 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3030 let origin = point(
3031 layout.hitbox.origin.x,
3032 layout.hitbox.origin.y
3033 + (highlight_row_start.as_f32() - scroll_top)
3034 * layout.position_map.line_height,
3035 );
3036 let size = size(
3037 layout.hitbox.size.width,
3038 layout.position_map.line_height
3039 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3040 );
3041 cx.paint_quad(fill(Bounds { origin, size }, color));
3042 };
3043
3044 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
3045 for (&new_row, &new_color) in &layout.highlighted_rows {
3046 match &mut current_paint {
3047 Some((current_color, current_range)) => {
3048 let current_color = *current_color;
3049 let new_range_started = current_color != new_color
3050 || current_range.end.next_row() != new_row;
3051 if new_range_started {
3052 paint_highlight(
3053 current_range.start,
3054 current_range.end,
3055 current_color,
3056 );
3057 current_paint = Some((new_color, new_row..new_row));
3058 continue;
3059 } else {
3060 current_range.end = current_range.end.next_row();
3061 }
3062 }
3063 None => current_paint = Some((new_color, new_row..new_row)),
3064 };
3065 }
3066 if let Some((color, range)) = current_paint {
3067 paint_highlight(range.start, range.end, color);
3068 }
3069
3070 let scroll_left =
3071 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
3072
3073 for (wrap_position, active) in layout.wrap_guides.iter() {
3074 let x = (layout.text_hitbox.origin.x
3075 + *wrap_position
3076 + layout.position_map.em_width / 2.)
3077 - scroll_left;
3078
3079 let show_scrollbars = layout
3080 .scrollbar_layout
3081 .as_ref()
3082 .map_or(false, |scrollbar| scrollbar.visible);
3083 if x < layout.text_hitbox.origin.x
3084 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
3085 {
3086 continue;
3087 }
3088
3089 let color = if *active {
3090 cx.theme().colors().editor_active_wrap_guide
3091 } else {
3092 cx.theme().colors().editor_wrap_guide
3093 };
3094 cx.paint_quad(fill(
3095 Bounds {
3096 origin: point(x, layout.text_hitbox.origin.y),
3097 size: size(px(1.), layout.text_hitbox.size.height),
3098 },
3099 color,
3100 ));
3101 }
3102 }
3103 })
3104 }
3105
3106 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3107 let Some(indent_guides) = &layout.indent_guides else {
3108 return;
3109 };
3110
3111 let faded_color = |color: Hsla, alpha: f32| {
3112 let mut faded = color;
3113 faded.a = alpha;
3114 faded
3115 };
3116
3117 for indent_guide in indent_guides {
3118 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
3119 let settings = indent_guide.settings;
3120
3121 // TODO fixed for now, expose them through themes later
3122 const INDENT_AWARE_ALPHA: f32 = 0.2;
3123 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
3124 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
3125 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
3126
3127 let line_color = match (settings.coloring, indent_guide.active) {
3128 (IndentGuideColoring::Disabled, _) => None,
3129 (IndentGuideColoring::Fixed, false) => {
3130 Some(cx.theme().colors().editor_indent_guide)
3131 }
3132 (IndentGuideColoring::Fixed, true) => {
3133 Some(cx.theme().colors().editor_indent_guide_active)
3134 }
3135 (IndentGuideColoring::IndentAware, false) => {
3136 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
3137 }
3138 (IndentGuideColoring::IndentAware, true) => {
3139 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
3140 }
3141 };
3142
3143 let background_color = match (settings.background_coloring, indent_guide.active) {
3144 (IndentGuideBackgroundColoring::Disabled, _) => None,
3145 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
3146 indent_accent_colors,
3147 INDENT_AWARE_BACKGROUND_ALPHA,
3148 )),
3149 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
3150 indent_accent_colors,
3151 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
3152 )),
3153 };
3154
3155 let requested_line_width = if indent_guide.active {
3156 settings.active_line_width
3157 } else {
3158 settings.line_width
3159 }
3160 .clamp(1, 10);
3161 let mut line_indicator_width = 0.;
3162 if let Some(color) = line_color {
3163 cx.paint_quad(fill(
3164 Bounds {
3165 origin: indent_guide.origin,
3166 size: size(px(requested_line_width as f32), indent_guide.length),
3167 },
3168 color,
3169 ));
3170 line_indicator_width = requested_line_width as f32;
3171 }
3172
3173 if let Some(color) = background_color {
3174 let width = indent_guide.single_indent_width - px(line_indicator_width);
3175 cx.paint_quad(fill(
3176 Bounds {
3177 origin: point(
3178 indent_guide.origin.x + px(line_indicator_width),
3179 indent_guide.origin.y,
3180 ),
3181 size: size(width, indent_guide.length),
3182 },
3183 color,
3184 ));
3185 }
3186 }
3187 }
3188
3189 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3190 let line_height = layout.position_map.line_height;
3191 let scroll_position = layout.position_map.snapshot.scroll_position();
3192 let scroll_top = scroll_position.y * line_height;
3193
3194 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
3195
3196 for (ix, line) in layout.line_numbers.iter().enumerate() {
3197 if let Some(line) = line {
3198 let line_origin = layout.gutter_hitbox.origin
3199 + point(
3200 layout.gutter_hitbox.size.width
3201 - line.width
3202 - layout.gutter_dimensions.right_padding,
3203 ix as f32 * line_height - (scroll_top % line_height),
3204 );
3205
3206 line.paint(line_origin, line_height, cx).log_err();
3207 }
3208 }
3209 }
3210
3211 fn paint_diff_hunks(layout: &mut EditorLayout, cx: &mut WindowContext) {
3212 if layout.display_hunks.is_empty() {
3213 return;
3214 }
3215
3216 let line_height = layout.position_map.line_height;
3217 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3218 for (hunk, hitbox) in &layout.display_hunks {
3219 let hunk_to_paint = match hunk {
3220 DisplayDiffHunk::Folded { .. } => {
3221 let hunk_bounds = Self::diff_hunk_bounds(
3222 &layout.position_map.snapshot,
3223 line_height,
3224 layout.gutter_hitbox.bounds,
3225 hunk,
3226 );
3227 Some((
3228 hunk_bounds,
3229 cx.theme().status().modified,
3230 Corners::all(px(0.)),
3231 ))
3232 }
3233 DisplayDiffHunk::Unfolded { status, .. } => {
3234 hitbox.as_ref().map(|hunk_hitbox| match status {
3235 DiffHunkStatus::Added => (
3236 hunk_hitbox.bounds,
3237 cx.theme().status().created,
3238 Corners::all(px(0.)),
3239 ),
3240 DiffHunkStatus::Modified => (
3241 hunk_hitbox.bounds,
3242 cx.theme().status().modified,
3243 Corners::all(px(0.)),
3244 ),
3245 DiffHunkStatus::Removed => (
3246 Bounds::new(
3247 point(
3248 hunk_hitbox.origin.x - hunk_hitbox.size.width,
3249 hunk_hitbox.origin.y,
3250 ),
3251 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
3252 ),
3253 cx.theme().status().deleted,
3254 Corners::all(1. * line_height),
3255 ),
3256 })
3257 }
3258 };
3259
3260 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
3261 cx.paint_quad(quad(
3262 hunk_bounds,
3263 corner_radii,
3264 background_color,
3265 Edges::default(),
3266 transparent_black(),
3267 ));
3268 }
3269 }
3270 });
3271 }
3272
3273 pub(super) fn diff_hunk_bounds(
3274 snapshot: &EditorSnapshot,
3275 line_height: Pixels,
3276 gutter_bounds: Bounds<Pixels>,
3277 hunk: &DisplayDiffHunk,
3278 ) -> Bounds<Pixels> {
3279 let scroll_position = snapshot.scroll_position();
3280 let scroll_top = scroll_position.y * line_height;
3281
3282 match hunk {
3283 DisplayDiffHunk::Folded { display_row, .. } => {
3284 let start_y = display_row.as_f32() * line_height - scroll_top;
3285 let end_y = start_y + line_height;
3286
3287 let width = Self::diff_hunk_strip_width(line_height);
3288 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3289 let highlight_size = size(width, end_y - start_y);
3290 Bounds::new(highlight_origin, highlight_size)
3291 }
3292 DisplayDiffHunk::Unfolded {
3293 display_row_range,
3294 status,
3295 ..
3296 } => match status {
3297 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
3298 let start_row = display_row_range.start;
3299 let end_row = display_row_range.end;
3300 // If we're in a multibuffer, row range span might include an
3301 // excerpt header, so if we were to draw the marker straight away,
3302 // the hunk might include the rows of that header.
3303 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
3304 // Instead, we simply check whether the range we're dealing with includes
3305 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
3306 let end_row_in_current_excerpt = snapshot
3307 .blocks_in_range(start_row..end_row)
3308 .find_map(|(start_row, block)| {
3309 if matches!(block, Block::ExcerptBoundary { .. }) {
3310 Some(start_row)
3311 } else {
3312 None
3313 }
3314 })
3315 .unwrap_or(end_row);
3316
3317 let start_y = start_row.as_f32() * line_height - scroll_top;
3318 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
3319
3320 let width = Self::diff_hunk_strip_width(line_height);
3321 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3322 let highlight_size = size(width, end_y - start_y);
3323 Bounds::new(highlight_origin, highlight_size)
3324 }
3325 DiffHunkStatus::Removed => {
3326 let row = display_row_range.start;
3327
3328 let offset = line_height / 2.;
3329 let start_y = row.as_f32() * line_height - offset - scroll_top;
3330 let end_y = start_y + line_height;
3331
3332 let width = (0.35 * line_height).floor();
3333 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3334 let highlight_size = size(width, end_y - start_y);
3335 Bounds::new(highlight_origin, highlight_size)
3336 }
3337 },
3338 }
3339 }
3340
3341 /// Returns the width of the diff strip that will be displayed in the gutter.
3342 pub(super) fn diff_hunk_strip_width(line_height: Pixels) -> Pixels {
3343 // We floor the value to prevent pixel rounding.
3344 (0.275 * line_height).floor()
3345 }
3346
3347 fn paint_gutter_indicators(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3348 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3349 cx.with_element_namespace("crease_toggles", |cx| {
3350 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
3351 crease_toggle.paint(cx);
3352 }
3353 });
3354
3355 for test_indicator in layout.test_indicators.iter_mut() {
3356 test_indicator.paint(cx);
3357 }
3358
3359 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
3360 indicator.paint(cx);
3361 }
3362 });
3363 }
3364
3365 fn paint_gutter_highlights(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3366 for (_, hunk_hitbox) in &layout.display_hunks {
3367 if let Some(hunk_hitbox) = hunk_hitbox {
3368 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
3369 }
3370 }
3371
3372 let show_git_gutter = layout
3373 .position_map
3374 .snapshot
3375 .show_git_diff_gutter
3376 .unwrap_or_else(|| {
3377 matches!(
3378 ProjectSettings::get_global(cx).git.git_gutter,
3379 Some(GitGutterSetting::TrackedFiles)
3380 )
3381 });
3382 if show_git_gutter {
3383 Self::paint_diff_hunks(layout, cx)
3384 }
3385
3386 let highlight_width = 0.275 * layout.position_map.line_height;
3387 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
3388 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3389 for (range, color) in &layout.highlighted_gutter_ranges {
3390 let start_row = if range.start.row() < layout.visible_display_row_range.start {
3391 layout.visible_display_row_range.start - DisplayRow(1)
3392 } else {
3393 range.start.row()
3394 };
3395 let end_row = if range.end.row() > layout.visible_display_row_range.end {
3396 layout.visible_display_row_range.end + DisplayRow(1)
3397 } else {
3398 range.end.row()
3399 };
3400
3401 let start_y = layout.gutter_hitbox.top()
3402 + start_row.0 as f32 * layout.position_map.line_height
3403 - layout.position_map.scroll_pixel_position.y;
3404 let end_y = layout.gutter_hitbox.top()
3405 + (end_row.0 + 1) as f32 * layout.position_map.line_height
3406 - layout.position_map.scroll_pixel_position.y;
3407 let bounds = Bounds::from_corners(
3408 point(layout.gutter_hitbox.left(), start_y),
3409 point(layout.gutter_hitbox.left() + highlight_width, end_y),
3410 );
3411 cx.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
3412 }
3413 });
3414 }
3415
3416 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3417 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
3418 return;
3419 };
3420
3421 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3422 for mut blame_element in blamed_display_rows.into_iter() {
3423 blame_element.paint(cx);
3424 }
3425 })
3426 }
3427
3428 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3429 cx.with_content_mask(
3430 Some(ContentMask {
3431 bounds: layout.text_hitbox.bounds,
3432 }),
3433 |cx| {
3434 let cursor_style = if self
3435 .editor
3436 .read(cx)
3437 .hovered_link_state
3438 .as_ref()
3439 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
3440 {
3441 CursorStyle::PointingHand
3442 } else {
3443 CursorStyle::IBeam
3444 };
3445 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
3446
3447 let invisible_display_ranges = self.paint_highlights(layout, cx);
3448 self.paint_lines(&invisible_display_ranges, layout, cx);
3449 self.paint_redactions(layout, cx);
3450 self.paint_cursors(layout, cx);
3451 self.paint_inline_blame(layout, cx);
3452 cx.with_element_namespace("crease_trailers", |cx| {
3453 for trailer in layout.crease_trailers.iter_mut().flatten() {
3454 trailer.element.paint(cx);
3455 }
3456 });
3457 },
3458 )
3459 }
3460
3461 fn paint_highlights(
3462 &mut self,
3463 layout: &mut EditorLayout,
3464 cx: &mut WindowContext,
3465 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
3466 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3467 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
3468 let line_end_overshoot = 0.15 * layout.position_map.line_height;
3469 for (range, color) in &layout.highlighted_ranges {
3470 self.paint_highlighted_range(
3471 range.clone(),
3472 *color,
3473 Pixels::ZERO,
3474 line_end_overshoot,
3475 layout,
3476 cx,
3477 );
3478 }
3479
3480 let corner_radius = 0.15 * layout.position_map.line_height;
3481
3482 for (player_color, selections) in &layout.selections {
3483 for selection in selections.iter() {
3484 self.paint_highlighted_range(
3485 selection.range.clone(),
3486 player_color.selection,
3487 corner_radius,
3488 corner_radius * 2.,
3489 layout,
3490 cx,
3491 );
3492
3493 if selection.is_local && !selection.range.is_empty() {
3494 invisible_display_ranges.push(selection.range.clone());
3495 }
3496 }
3497 }
3498 invisible_display_ranges
3499 })
3500 }
3501
3502 fn paint_lines(
3503 &mut self,
3504 invisible_display_ranges: &[Range<DisplayPoint>],
3505 layout: &mut EditorLayout,
3506 cx: &mut WindowContext,
3507 ) {
3508 let whitespace_setting = self
3509 .editor
3510 .read(cx)
3511 .buffer
3512 .read(cx)
3513 .settings_at(0, cx)
3514 .show_whitespaces;
3515
3516 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
3517 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
3518 line_with_invisibles.draw(
3519 layout,
3520 row,
3521 layout.content_origin,
3522 whitespace_setting,
3523 invisible_display_ranges,
3524 cx,
3525 )
3526 }
3527
3528 for line_element in &mut layout.line_elements {
3529 line_element.paint(cx);
3530 }
3531 }
3532
3533 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3534 if layout.redacted_ranges.is_empty() {
3535 return;
3536 }
3537
3538 let line_end_overshoot = layout.line_end_overshoot();
3539
3540 // A softer than perfect black
3541 let redaction_color = gpui::rgb(0x0e1111);
3542
3543 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3544 for range in layout.redacted_ranges.iter() {
3545 self.paint_highlighted_range(
3546 range.clone(),
3547 redaction_color.into(),
3548 Pixels::ZERO,
3549 line_end_overshoot,
3550 layout,
3551 cx,
3552 );
3553 }
3554 });
3555 }
3556
3557 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3558 for cursor in &mut layout.visible_cursors {
3559 cursor.paint(layout.content_origin, cx);
3560 }
3561 }
3562
3563 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3564 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
3565 return;
3566 };
3567
3568 let thumb_bounds = scrollbar_layout.thumb_bounds();
3569 if scrollbar_layout.visible {
3570 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
3571 cx.paint_quad(quad(
3572 scrollbar_layout.hitbox.bounds,
3573 Corners::default(),
3574 cx.theme().colors().scrollbar_track_background,
3575 Edges {
3576 top: Pixels::ZERO,
3577 right: Pixels::ZERO,
3578 bottom: Pixels::ZERO,
3579 left: ScrollbarLayout::BORDER_WIDTH,
3580 },
3581 cx.theme().colors().scrollbar_track_border,
3582 ));
3583
3584 let fast_markers =
3585 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
3586 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
3587 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
3588
3589 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
3590 for marker in markers.iter().chain(&fast_markers) {
3591 let mut marker = marker.clone();
3592 marker.bounds.origin += scrollbar_layout.hitbox.origin;
3593 cx.paint_quad(marker);
3594 }
3595
3596 cx.paint_quad(quad(
3597 thumb_bounds,
3598 Corners::default(),
3599 cx.theme().colors().scrollbar_thumb_background,
3600 Edges {
3601 top: Pixels::ZERO,
3602 right: Pixels::ZERO,
3603 bottom: Pixels::ZERO,
3604 left: ScrollbarLayout::BORDER_WIDTH,
3605 },
3606 cx.theme().colors().scrollbar_thumb_border,
3607 ));
3608 });
3609 }
3610
3611 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
3612
3613 let row_height = scrollbar_layout.row_height;
3614 let row_range = scrollbar_layout.visible_row_range.clone();
3615
3616 cx.on_mouse_event({
3617 let editor = self.editor.clone();
3618 let hitbox = scrollbar_layout.hitbox.clone();
3619 let mut mouse_position = cx.mouse_position();
3620 move |event: &MouseMoveEvent, phase, cx| {
3621 if phase == DispatchPhase::Capture {
3622 return;
3623 }
3624
3625 editor.update(cx, |editor, cx| {
3626 if event.pressed_button == Some(MouseButton::Left)
3627 && editor.scroll_manager.is_dragging_scrollbar()
3628 {
3629 let y = mouse_position.y;
3630 let new_y = event.position.y;
3631 if (hitbox.top()..hitbox.bottom()).contains(&y) {
3632 let mut position = editor.scroll_position(cx);
3633 position.y += (new_y - y) / row_height;
3634 if position.y < 0.0 {
3635 position.y = 0.0;
3636 }
3637 editor.set_scroll_position(position, cx);
3638 }
3639
3640 cx.stop_propagation();
3641 } else {
3642 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3643 if hitbox.is_hovered(cx) {
3644 editor.scroll_manager.show_scrollbar(cx);
3645 }
3646 }
3647 mouse_position = event.position;
3648 })
3649 }
3650 });
3651
3652 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
3653 cx.on_mouse_event({
3654 let editor = self.editor.clone();
3655 move |_: &MouseUpEvent, phase, cx| {
3656 if phase == DispatchPhase::Capture {
3657 return;
3658 }
3659
3660 editor.update(cx, |editor, cx| {
3661 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3662 cx.stop_propagation();
3663 });
3664 }
3665 });
3666 } else {
3667 cx.on_mouse_event({
3668 let editor = self.editor.clone();
3669 let hitbox = scrollbar_layout.hitbox.clone();
3670 move |event: &MouseDownEvent, phase, cx| {
3671 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
3672 return;
3673 }
3674
3675 editor.update(cx, |editor, cx| {
3676 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
3677
3678 let y = event.position.y;
3679 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
3680 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
3681 let top_row = center_row
3682 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
3683 let mut position = editor.scroll_position(cx);
3684 position.y = top_row as f32;
3685 editor.set_scroll_position(position, cx);
3686 } else {
3687 editor.scroll_manager.show_scrollbar(cx);
3688 }
3689
3690 cx.stop_propagation();
3691 });
3692 }
3693 });
3694 }
3695 }
3696
3697 fn collect_fast_scrollbar_markers(
3698 &self,
3699 layout: &EditorLayout,
3700 scrollbar_layout: &ScrollbarLayout,
3701 cx: &mut WindowContext,
3702 ) -> Vec<PaintQuad> {
3703 const LIMIT: usize = 100;
3704 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
3705 return vec![];
3706 }
3707 let cursor_ranges = layout
3708 .cursors
3709 .iter()
3710 .map(|(point, color)| ColoredRange {
3711 start: point.row(),
3712 end: point.row(),
3713 color: *color,
3714 })
3715 .collect_vec();
3716 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
3717 }
3718
3719 fn refresh_slow_scrollbar_markers(
3720 &self,
3721 layout: &EditorLayout,
3722 scrollbar_layout: &ScrollbarLayout,
3723 cx: &mut WindowContext,
3724 ) {
3725 self.editor.update(cx, |editor, cx| {
3726 if !editor.is_singleton(cx)
3727 || !editor
3728 .scrollbar_marker_state
3729 .should_refresh(scrollbar_layout.hitbox.size)
3730 {
3731 return;
3732 }
3733
3734 let scrollbar_layout = scrollbar_layout.clone();
3735 let background_highlights = editor.background_highlights.clone();
3736 let snapshot = layout.position_map.snapshot.clone();
3737 let theme = cx.theme().clone();
3738 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
3739
3740 editor.scrollbar_marker_state.dirty = false;
3741 editor.scrollbar_marker_state.pending_refresh =
3742 Some(cx.spawn(|editor, mut cx| async move {
3743 let scrollbar_size = scrollbar_layout.hitbox.size;
3744 let scrollbar_markers = cx
3745 .background_executor()
3746 .spawn(async move {
3747 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
3748 let mut marker_quads = Vec::new();
3749 if scrollbar_settings.git_diff {
3750 let marker_row_ranges = snapshot
3751 .diff_map
3752 .diff_hunks(&snapshot.buffer_snapshot)
3753 .map(|hunk| {
3754 let start_display_row =
3755 MultiBufferPoint::new(hunk.row_range.start.0, 0)
3756 .to_display_point(&snapshot.display_snapshot)
3757 .row();
3758 let mut end_display_row =
3759 MultiBufferPoint::new(hunk.row_range.end.0, 0)
3760 .to_display_point(&snapshot.display_snapshot)
3761 .row();
3762 if end_display_row != start_display_row {
3763 end_display_row.0 -= 1;
3764 }
3765 let color = match hunk_status(&hunk) {
3766 DiffHunkStatus::Added => theme.status().created,
3767 DiffHunkStatus::Modified => theme.status().modified,
3768 DiffHunkStatus::Removed => theme.status().deleted,
3769 };
3770 ColoredRange {
3771 start: start_display_row,
3772 end: end_display_row,
3773 color,
3774 }
3775 });
3776
3777 marker_quads.extend(
3778 scrollbar_layout
3779 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
3780 );
3781 }
3782
3783 for (background_highlight_id, (_, background_ranges)) in
3784 background_highlights.iter()
3785 {
3786 let is_search_highlights = *background_highlight_id
3787 == TypeId::of::<BufferSearchHighlights>();
3788 let is_symbol_occurrences = *background_highlight_id
3789 == TypeId::of::<DocumentHighlightRead>()
3790 || *background_highlight_id
3791 == TypeId::of::<DocumentHighlightWrite>();
3792 if (is_search_highlights && scrollbar_settings.search_results)
3793 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
3794 {
3795 let mut color = theme.status().info;
3796 if is_symbol_occurrences {
3797 color.fade_out(0.5);
3798 }
3799 let marker_row_ranges = background_ranges.iter().map(|range| {
3800 let display_start = range
3801 .start
3802 .to_display_point(&snapshot.display_snapshot);
3803 let display_end =
3804 range.end.to_display_point(&snapshot.display_snapshot);
3805 ColoredRange {
3806 start: display_start.row(),
3807 end: display_end.row(),
3808 color,
3809 }
3810 });
3811 marker_quads.extend(
3812 scrollbar_layout
3813 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
3814 );
3815 }
3816 }
3817
3818 if scrollbar_settings.diagnostics {
3819 let diagnostics = snapshot
3820 .buffer_snapshot
3821 .diagnostics_in_range::<_, Point>(
3822 Point::zero()..max_point,
3823 false,
3824 )
3825 // We want to sort by severity, in order to paint the most severe diagnostics last.
3826 .sorted_by_key(|diagnostic| {
3827 std::cmp::Reverse(diagnostic.diagnostic.severity)
3828 });
3829
3830 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
3831 let start_display = diagnostic
3832 .range
3833 .start
3834 .to_display_point(&snapshot.display_snapshot);
3835 let end_display = diagnostic
3836 .range
3837 .end
3838 .to_display_point(&snapshot.display_snapshot);
3839 let color = match diagnostic.diagnostic.severity {
3840 DiagnosticSeverity::ERROR => theme.status().error,
3841 DiagnosticSeverity::WARNING => theme.status().warning,
3842 DiagnosticSeverity::INFORMATION => theme.status().info,
3843 _ => theme.status().hint,
3844 };
3845 ColoredRange {
3846 start: start_display.row(),
3847 end: end_display.row(),
3848 color,
3849 }
3850 });
3851 marker_quads.extend(
3852 scrollbar_layout
3853 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
3854 );
3855 }
3856
3857 Arc::from(marker_quads)
3858 })
3859 .await;
3860
3861 editor.update(&mut cx, |editor, cx| {
3862 editor.scrollbar_marker_state.markers = scrollbar_markers;
3863 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
3864 editor.scrollbar_marker_state.pending_refresh = None;
3865 cx.notify();
3866 })?;
3867
3868 Ok(())
3869 }));
3870 });
3871 }
3872
3873 #[allow(clippy::too_many_arguments)]
3874 fn paint_highlighted_range(
3875 &self,
3876 range: Range<DisplayPoint>,
3877 color: Hsla,
3878 corner_radius: Pixels,
3879 line_end_overshoot: Pixels,
3880 layout: &EditorLayout,
3881 cx: &mut WindowContext,
3882 ) {
3883 let start_row = layout.visible_display_row_range.start;
3884 let end_row = layout.visible_display_row_range.end;
3885 if range.start != range.end {
3886 let row_range = if range.end.column() == 0 {
3887 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3888 } else {
3889 cmp::max(range.start.row(), start_row)
3890 ..cmp::min(range.end.row().next_row(), end_row)
3891 };
3892
3893 let highlighted_range = HighlightedRange {
3894 color,
3895 line_height: layout.position_map.line_height,
3896 corner_radius,
3897 start_y: layout.content_origin.y
3898 + row_range.start.as_f32() * layout.position_map.line_height
3899 - layout.position_map.scroll_pixel_position.y,
3900 lines: row_range
3901 .iter_rows()
3902 .map(|row| {
3903 let line_layout =
3904 &layout.position_map.line_layouts[row.minus(start_row) as usize];
3905 HighlightedRangeLine {
3906 start_x: if row == range.start.row() {
3907 layout.content_origin.x
3908 + line_layout.x_for_index(range.start.column() as usize)
3909 - layout.position_map.scroll_pixel_position.x
3910 } else {
3911 layout.content_origin.x
3912 - layout.position_map.scroll_pixel_position.x
3913 },
3914 end_x: if row == range.end.row() {
3915 layout.content_origin.x
3916 + line_layout.x_for_index(range.end.column() as usize)
3917 - layout.position_map.scroll_pixel_position.x
3918 } else {
3919 layout.content_origin.x + line_layout.width + line_end_overshoot
3920 - layout.position_map.scroll_pixel_position.x
3921 },
3922 }
3923 })
3924 .collect(),
3925 };
3926
3927 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3928 }
3929 }
3930
3931 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3932 if let Some(mut inline_blame) = layout.inline_blame.take() {
3933 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3934 inline_blame.paint(cx);
3935 })
3936 }
3937 }
3938
3939 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3940 for mut block in layout.blocks.drain(..) {
3941 block.element.paint(cx);
3942 }
3943 }
3944
3945 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3946 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3947 mouse_context_menu.paint(cx);
3948 }
3949 }
3950
3951 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3952 cx.on_mouse_event({
3953 let position_map = layout.position_map.clone();
3954 let editor = self.editor.clone();
3955 let hitbox = layout.hitbox.clone();
3956 let mut delta = ScrollDelta::default();
3957
3958 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3959 // accidentally turn off their scrolling.
3960 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3961
3962 move |event: &ScrollWheelEvent, phase, cx| {
3963 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3964 delta = delta.coalesce(event.delta);
3965 editor.update(cx, |editor, cx| {
3966 let position_map: &PositionMap = &position_map;
3967
3968 let line_height = position_map.line_height;
3969 let max_glyph_width = position_map.em_width;
3970 let (delta, axis) = match delta {
3971 gpui::ScrollDelta::Pixels(mut pixels) => {
3972 //Trackpad
3973 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3974 (pixels, axis)
3975 }
3976
3977 gpui::ScrollDelta::Lines(lines) => {
3978 //Not trackpad
3979 let pixels =
3980 point(lines.x * max_glyph_width, lines.y * line_height);
3981 (pixels, None)
3982 }
3983 };
3984
3985 let current_scroll_position = position_map.snapshot.scroll_position();
3986 let x = (current_scroll_position.x * max_glyph_width
3987 - (delta.x * scroll_sensitivity))
3988 / max_glyph_width;
3989 let y = (current_scroll_position.y * line_height
3990 - (delta.y * scroll_sensitivity))
3991 / line_height;
3992 let mut scroll_position =
3993 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
3994 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
3995 if forbid_vertical_scroll {
3996 scroll_position.y = current_scroll_position.y;
3997 }
3998
3999 if scroll_position != current_scroll_position {
4000 editor.scroll(scroll_position, axis, cx);
4001 cx.stop_propagation();
4002 } else if y < 0. {
4003 // Due to clamping, we may fail to detect cases of overscroll to the top;
4004 // We want the scroll manager to get an update in such cases and detect the change of direction
4005 // on the next frame.
4006 cx.notify();
4007 }
4008 });
4009 }
4010 }
4011 });
4012 }
4013
4014 fn paint_mouse_listeners(
4015 &mut self,
4016 layout: &EditorLayout,
4017 hovered_hunk: Option<HoveredHunk>,
4018 cx: &mut WindowContext,
4019 ) {
4020 self.paint_scroll_wheel_listener(layout, cx);
4021
4022 cx.on_mouse_event({
4023 let position_map = layout.position_map.clone();
4024 let editor = self.editor.clone();
4025 let text_hitbox = layout.text_hitbox.clone();
4026 let gutter_hitbox = layout.gutter_hitbox.clone();
4027
4028 move |event: &MouseDownEvent, phase, cx| {
4029 if phase == DispatchPhase::Bubble {
4030 match event.button {
4031 MouseButton::Left => editor.update(cx, |editor, cx| {
4032 Self::mouse_left_down(
4033 editor,
4034 event,
4035 hovered_hunk.clone(),
4036 &position_map,
4037 &text_hitbox,
4038 &gutter_hitbox,
4039 cx,
4040 );
4041 }),
4042 MouseButton::Right => editor.update(cx, |editor, cx| {
4043 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
4044 }),
4045 MouseButton::Middle => editor.update(cx, |editor, cx| {
4046 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
4047 }),
4048 _ => {}
4049 };
4050 }
4051 }
4052 });
4053
4054 cx.on_mouse_event({
4055 let editor = self.editor.clone();
4056 let position_map = layout.position_map.clone();
4057 let text_hitbox = layout.text_hitbox.clone();
4058
4059 move |event: &MouseUpEvent, phase, cx| {
4060 if phase == DispatchPhase::Bubble {
4061 editor.update(cx, |editor, cx| {
4062 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
4063 });
4064 }
4065 }
4066 });
4067 cx.on_mouse_event({
4068 let position_map = layout.position_map.clone();
4069 let editor = self.editor.clone();
4070 let text_hitbox = layout.text_hitbox.clone();
4071 let gutter_hitbox = layout.gutter_hitbox.clone();
4072
4073 move |event: &MouseMoveEvent, phase, cx| {
4074 if phase == DispatchPhase::Bubble {
4075 editor.update(cx, |editor, cx| {
4076 if editor.hover_state.focused(cx) {
4077 return;
4078 }
4079 if event.pressed_button == Some(MouseButton::Left)
4080 || event.pressed_button == Some(MouseButton::Middle)
4081 {
4082 Self::mouse_dragged(
4083 editor,
4084 event,
4085 &position_map,
4086 text_hitbox.bounds,
4087 cx,
4088 )
4089 }
4090
4091 Self::mouse_moved(
4092 editor,
4093 event,
4094 &position_map,
4095 &text_hitbox,
4096 &gutter_hitbox,
4097 cx,
4098 )
4099 });
4100 }
4101 }
4102 });
4103 }
4104
4105 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
4106 bounds.upper_right().x - self.style.scrollbar_width
4107 }
4108
4109 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
4110 let style = &self.style;
4111 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4112 let layout = cx
4113 .text_system()
4114 .shape_line(
4115 SharedString::from(" ".repeat(column)),
4116 font_size,
4117 &[TextRun {
4118 len: column,
4119 font: style.text.font(),
4120 color: Hsla::default(),
4121 background_color: None,
4122 underline: None,
4123 strikethrough: None,
4124 }],
4125 )
4126 .unwrap();
4127
4128 layout.width
4129 }
4130
4131 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
4132 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
4133 self.column_pixels(digit_count, cx)
4134 }
4135}
4136
4137#[allow(clippy::too_many_arguments)]
4138fn prepaint_gutter_button(
4139 button: IconButton,
4140 row: DisplayRow,
4141 line_height: Pixels,
4142 gutter_dimensions: &GutterDimensions,
4143 scroll_pixel_position: gpui::Point<Pixels>,
4144 gutter_hitbox: &Hitbox,
4145 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
4146 cx: &mut WindowContext<'_>,
4147) -> AnyElement {
4148 let mut button = button.into_any_element();
4149 let available_space = size(
4150 AvailableSpace::MinContent,
4151 AvailableSpace::Definite(line_height),
4152 );
4153 let indicator_size = button.layout_as_root(available_space, cx);
4154
4155 let blame_width = gutter_dimensions.git_blame_entries_width;
4156 let gutter_width = rows_with_hunk_bounds
4157 .get(&row)
4158 .map(|bounds| bounds.size.width);
4159 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
4160
4161 let mut x = left_offset;
4162 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
4163 - indicator_size.width
4164 - left_offset;
4165 x += available_width / 2.;
4166
4167 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
4168 y += (line_height - indicator_size.height) / 2.;
4169
4170 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
4171 button
4172}
4173
4174fn render_inline_blame_entry(
4175 blame: &gpui::Model<GitBlame>,
4176 blame_entry: BlameEntry,
4177 style: &EditorStyle,
4178 workspace: Option<WeakView<Workspace>>,
4179 cx: &mut WindowContext<'_>,
4180) -> AnyElement {
4181 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4182
4183 let author = blame_entry.author.as_deref().unwrap_or_default();
4184 let summary_enabled = ProjectSettings::get_global(cx)
4185 .git
4186 .show_inline_commit_summary();
4187
4188 let text = match blame_entry.summary.as_ref() {
4189 Some(summary) if summary_enabled => {
4190 format!("{}, {} - {}", author, relative_timestamp, summary)
4191 }
4192 _ => format!("{}, {}", author, relative_timestamp),
4193 };
4194
4195 let details = blame.read(cx).details_for_entry(&blame_entry);
4196
4197 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
4198
4199 h_flex()
4200 .id("inline-blame")
4201 .w_full()
4202 .font_family(style.text.font().family)
4203 .text_color(cx.theme().status().hint)
4204 .line_height(style.text.line_height)
4205 .child(Icon::new(IconName::FileGit).color(Color::Hint))
4206 .child(text)
4207 .gap_2()
4208 .hoverable_tooltip(move |_| tooltip.clone().into())
4209 .into_any()
4210}
4211
4212fn render_blame_entry(
4213 ix: usize,
4214 blame: &gpui::Model<GitBlame>,
4215 blame_entry: BlameEntry,
4216 style: &EditorStyle,
4217 last_used_color: &mut Option<(PlayerColor, Oid)>,
4218 editor: View<Editor>,
4219 cx: &mut WindowContext<'_>,
4220) -> AnyElement {
4221 let mut sha_color = cx
4222 .theme()
4223 .players()
4224 .color_for_participant(blame_entry.sha.into());
4225 // If the last color we used is the same as the one we get for this line, but
4226 // the commit SHAs are different, then we try again to get a different color.
4227 match *last_used_color {
4228 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
4229 let index: u32 = blame_entry.sha.into();
4230 sha_color = cx.theme().players().color_for_participant(index + 1);
4231 }
4232 _ => {}
4233 };
4234 last_used_color.replace((sha_color, blame_entry.sha));
4235
4236 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4237
4238 let short_commit_id = blame_entry.sha.display_short();
4239
4240 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
4241 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
4242
4243 let details = blame.read(cx).details_for_entry(&blame_entry);
4244
4245 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
4246
4247 let tooltip = cx.new_view(|_| {
4248 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
4249 });
4250
4251 h_flex()
4252 .w_full()
4253 .justify_between()
4254 .font_family(style.text.font().family)
4255 .line_height(style.text.line_height)
4256 .id(("blame", ix))
4257 .text_color(cx.theme().status().hint)
4258 .pr_2()
4259 .gap_2()
4260 .child(
4261 h_flex()
4262 .items_center()
4263 .gap_2()
4264 .child(div().text_color(sha_color.cursor).child(short_commit_id))
4265 .child(name),
4266 )
4267 .child(relative_timestamp)
4268 .on_mouse_down(MouseButton::Right, {
4269 let blame_entry = blame_entry.clone();
4270 let details = details.clone();
4271 move |event, cx| {
4272 deploy_blame_entry_context_menu(
4273 &blame_entry,
4274 details.as_ref(),
4275 editor.clone(),
4276 event.position,
4277 cx,
4278 );
4279 }
4280 })
4281 .hover(|style| style.bg(cx.theme().colors().element_hover))
4282 .when_some(
4283 details.and_then(|details| details.permalink),
4284 |this, url| {
4285 let url = url.clone();
4286 this.cursor_pointer().on_click(move |_, cx| {
4287 cx.stop_propagation();
4288 cx.open_url(url.as_str())
4289 })
4290 },
4291 )
4292 .hoverable_tooltip(move |_| tooltip.clone().into())
4293 .into_any()
4294}
4295
4296fn deploy_blame_entry_context_menu(
4297 blame_entry: &BlameEntry,
4298 details: Option<&CommitDetails>,
4299 editor: View<Editor>,
4300 position: gpui::Point<Pixels>,
4301 cx: &mut WindowContext<'_>,
4302) {
4303 let context_menu = ContextMenu::build(cx, move |menu, _| {
4304 let sha = format!("{}", blame_entry.sha);
4305 menu.on_blur_subscription(Subscription::new(|| {}))
4306 .entry("Copy commit SHA", None, move |cx| {
4307 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
4308 })
4309 .when_some(
4310 details.and_then(|details| details.permalink.clone()),
4311 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
4312 )
4313 });
4314
4315 editor.update(cx, move |editor, cx| {
4316 editor.mouse_context_menu = Some(MouseContextMenu::new(
4317 MenuPosition::PinnedToScreen(position),
4318 context_menu,
4319 cx,
4320 ));
4321 cx.notify();
4322 });
4323}
4324
4325#[derive(Debug)]
4326pub(crate) struct LineWithInvisibles {
4327 fragments: SmallVec<[LineFragment; 1]>,
4328 invisibles: Vec<Invisible>,
4329 len: usize,
4330 width: Pixels,
4331 font_size: Pixels,
4332}
4333
4334#[allow(clippy::large_enum_variant)]
4335enum LineFragment {
4336 Text(ShapedLine),
4337 Element {
4338 element: Option<AnyElement>,
4339 size: Size<Pixels>,
4340 len: usize,
4341 },
4342}
4343
4344impl fmt::Debug for LineFragment {
4345 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
4346 match self {
4347 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
4348 LineFragment::Element { size, len, .. } => f
4349 .debug_struct("Element")
4350 .field("size", size)
4351 .field("len", len)
4352 .finish(),
4353 }
4354 }
4355}
4356
4357impl LineWithInvisibles {
4358 #[allow(clippy::too_many_arguments)]
4359 fn from_chunks<'a>(
4360 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
4361 editor_style: &EditorStyle,
4362 max_line_len: usize,
4363 max_line_count: usize,
4364 editor_mode: EditorMode,
4365 text_width: Pixels,
4366 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4367 cx: &mut WindowContext,
4368 ) -> Vec<Self> {
4369 let text_style = &editor_style.text;
4370 let mut layouts = Vec::with_capacity(max_line_count);
4371 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
4372 let mut line = String::new();
4373 let mut invisibles = Vec::new();
4374 let mut width = Pixels::ZERO;
4375 let mut len = 0;
4376 let mut styles = Vec::new();
4377 let mut non_whitespace_added = false;
4378 let mut row = 0;
4379 let mut line_exceeded_max_len = false;
4380 let font_size = text_style.font_size.to_pixels(cx.rem_size());
4381
4382 let ellipsis = SharedString::from("⋯");
4383
4384 for highlighted_chunk in chunks.chain([HighlightedChunk {
4385 text: "\n",
4386 style: None,
4387 is_tab: false,
4388 replacement: None,
4389 }]) {
4390 if let Some(replacement) = highlighted_chunk.replacement {
4391 if !line.is_empty() {
4392 let shaped_line = cx
4393 .text_system()
4394 .shape_line(line.clone().into(), font_size, &styles)
4395 .unwrap();
4396 width += shaped_line.width;
4397 len += shaped_line.len;
4398 fragments.push(LineFragment::Text(shaped_line));
4399 line.clear();
4400 styles.clear();
4401 }
4402
4403 match replacement {
4404 ChunkReplacement::Renderer(renderer) => {
4405 let available_width = if renderer.constrain_width {
4406 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
4407 ellipsis.clone()
4408 } else {
4409 SharedString::from(Arc::from(highlighted_chunk.text))
4410 };
4411 let shaped_line = cx
4412 .text_system()
4413 .shape_line(
4414 chunk,
4415 font_size,
4416 &[text_style.to_run(highlighted_chunk.text.len())],
4417 )
4418 .unwrap();
4419 AvailableSpace::Definite(shaped_line.width)
4420 } else {
4421 AvailableSpace::MinContent
4422 };
4423
4424 let mut element = (renderer.render)(&mut ChunkRendererContext {
4425 context: cx,
4426 max_width: text_width,
4427 });
4428 let line_height = text_style.line_height_in_pixels(cx.rem_size());
4429 let size = element.layout_as_root(
4430 size(available_width, AvailableSpace::Definite(line_height)),
4431 cx,
4432 );
4433
4434 width += size.width;
4435 len += highlighted_chunk.text.len();
4436 fragments.push(LineFragment::Element {
4437 element: Some(element),
4438 size,
4439 len: highlighted_chunk.text.len(),
4440 });
4441 }
4442 ChunkReplacement::Str(x) => {
4443 let text_style = if let Some(style) = highlighted_chunk.style {
4444 Cow::Owned(text_style.clone().highlight(style))
4445 } else {
4446 Cow::Borrowed(text_style)
4447 };
4448
4449 let run = TextRun {
4450 len: x.len(),
4451 font: text_style.font(),
4452 color: text_style.color,
4453 background_color: text_style.background_color,
4454 underline: text_style.underline,
4455 strikethrough: text_style.strikethrough,
4456 };
4457 let line_layout = cx
4458 .text_system()
4459 .shape_line(x, font_size, &[run])
4460 .unwrap()
4461 .with_len(highlighted_chunk.text.len());
4462
4463 width += line_layout.width;
4464 len += highlighted_chunk.text.len();
4465 fragments.push(LineFragment::Text(line_layout))
4466 }
4467 }
4468 } else {
4469 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
4470 if ix > 0 {
4471 let shaped_line = cx
4472 .text_system()
4473 .shape_line(line.clone().into(), font_size, &styles)
4474 .unwrap();
4475 width += shaped_line.width;
4476 len += shaped_line.len;
4477 fragments.push(LineFragment::Text(shaped_line));
4478 layouts.push(Self {
4479 width: mem::take(&mut width),
4480 len: mem::take(&mut len),
4481 fragments: mem::take(&mut fragments),
4482 invisibles: std::mem::take(&mut invisibles),
4483 font_size,
4484 });
4485
4486 line.clear();
4487 styles.clear();
4488 row += 1;
4489 line_exceeded_max_len = false;
4490 non_whitespace_added = false;
4491 if row == max_line_count {
4492 return layouts;
4493 }
4494 }
4495
4496 if !line_chunk.is_empty() && !line_exceeded_max_len {
4497 let text_style = if let Some(style) = highlighted_chunk.style {
4498 Cow::Owned(text_style.clone().highlight(style))
4499 } else {
4500 Cow::Borrowed(text_style)
4501 };
4502
4503 if line.len() + line_chunk.len() > max_line_len {
4504 let mut chunk_len = max_line_len - line.len();
4505 while !line_chunk.is_char_boundary(chunk_len) {
4506 chunk_len -= 1;
4507 }
4508 line_chunk = &line_chunk[..chunk_len];
4509 line_exceeded_max_len = true;
4510 }
4511
4512 styles.push(TextRun {
4513 len: line_chunk.len(),
4514 font: text_style.font(),
4515 color: text_style.color,
4516 background_color: text_style.background_color,
4517 underline: text_style.underline,
4518 strikethrough: text_style.strikethrough,
4519 });
4520
4521 if editor_mode == EditorMode::Full {
4522 // Line wrap pads its contents with fake whitespaces,
4523 // avoid printing them
4524 let is_soft_wrapped = is_row_soft_wrapped(row);
4525 if highlighted_chunk.is_tab {
4526 if non_whitespace_added || !is_soft_wrapped {
4527 invisibles.push(Invisible::Tab {
4528 line_start_offset: line.len(),
4529 line_end_offset: line.len() + line_chunk.len(),
4530 });
4531 }
4532 } else {
4533 invisibles.extend(
4534 line_chunk
4535 .bytes()
4536 .enumerate()
4537 .filter(|(_, line_byte)| {
4538 let is_whitespace =
4539 (*line_byte as char).is_whitespace();
4540 non_whitespace_added |= !is_whitespace;
4541 is_whitespace
4542 && (non_whitespace_added || !is_soft_wrapped)
4543 })
4544 .map(|(whitespace_index, _)| Invisible::Whitespace {
4545 line_offset: line.len() + whitespace_index,
4546 }),
4547 )
4548 }
4549 }
4550
4551 line.push_str(line_chunk);
4552 }
4553 }
4554 }
4555 }
4556
4557 layouts
4558 }
4559
4560 fn prepaint(
4561 &mut self,
4562 line_height: Pixels,
4563 scroll_pixel_position: gpui::Point<Pixels>,
4564 row: DisplayRow,
4565 content_origin: gpui::Point<Pixels>,
4566 line_elements: &mut SmallVec<[AnyElement; 1]>,
4567 cx: &mut WindowContext,
4568 ) {
4569 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
4570 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
4571 for fragment in &mut self.fragments {
4572 match fragment {
4573 LineFragment::Text(line) => {
4574 fragment_origin.x += line.width;
4575 }
4576 LineFragment::Element { element, size, .. } => {
4577 let mut element = element
4578 .take()
4579 .expect("you can't prepaint LineWithInvisibles twice");
4580
4581 // Center the element vertically within the line.
4582 let mut element_origin = fragment_origin;
4583 element_origin.y += (line_height - size.height) / 2.;
4584 element.prepaint_at(element_origin, cx);
4585 line_elements.push(element);
4586
4587 fragment_origin.x += size.width;
4588 }
4589 }
4590 }
4591 }
4592
4593 fn draw(
4594 &self,
4595 layout: &EditorLayout,
4596 row: DisplayRow,
4597 content_origin: gpui::Point<Pixels>,
4598 whitespace_setting: ShowWhitespaceSetting,
4599 selection_ranges: &[Range<DisplayPoint>],
4600 cx: &mut WindowContext,
4601 ) {
4602 let line_height = layout.position_map.line_height;
4603 let line_y = line_height
4604 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
4605
4606 let mut fragment_origin =
4607 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
4608
4609 for fragment in &self.fragments {
4610 match fragment {
4611 LineFragment::Text(line) => {
4612 line.paint(fragment_origin, line_height, cx).log_err();
4613 fragment_origin.x += line.width;
4614 }
4615 LineFragment::Element { size, .. } => {
4616 fragment_origin.x += size.width;
4617 }
4618 }
4619 }
4620
4621 self.draw_invisibles(
4622 selection_ranges,
4623 layout,
4624 content_origin,
4625 line_y,
4626 row,
4627 line_height,
4628 whitespace_setting,
4629 cx,
4630 );
4631 }
4632
4633 #[allow(clippy::too_many_arguments)]
4634 fn draw_invisibles(
4635 &self,
4636 selection_ranges: &[Range<DisplayPoint>],
4637 layout: &EditorLayout,
4638 content_origin: gpui::Point<Pixels>,
4639 line_y: Pixels,
4640 row: DisplayRow,
4641 line_height: Pixels,
4642 whitespace_setting: ShowWhitespaceSetting,
4643 cx: &mut WindowContext,
4644 ) {
4645 let extract_whitespace_info = |invisible: &Invisible| {
4646 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
4647 Invisible::Tab {
4648 line_start_offset,
4649 line_end_offset,
4650 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
4651 Invisible::Whitespace { line_offset } => {
4652 (*line_offset, line_offset + 1, &layout.space_invisible)
4653 }
4654 };
4655
4656 let x_offset = self.x_for_index(token_offset);
4657 let invisible_offset =
4658 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
4659 let origin = content_origin
4660 + gpui::point(
4661 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
4662 line_y,
4663 );
4664
4665 (
4666 [token_offset, token_end_offset],
4667 Box::new(move |cx: &mut WindowContext| {
4668 invisible_symbol.paint(origin, line_height, cx).log_err();
4669 }),
4670 )
4671 };
4672
4673 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
4674 match whitespace_setting {
4675 ShowWhitespaceSetting::None => (),
4676 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
4677 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
4678 let invisible_point = DisplayPoint::new(row, start as u32);
4679 if !selection_ranges
4680 .iter()
4681 .any(|region| region.start <= invisible_point && invisible_point < region.end)
4682 {
4683 return;
4684 }
4685
4686 paint(cx);
4687 }),
4688
4689 // For a whitespace to be on a boundary, any of the following conditions need to be met:
4690 // - It is a tab
4691 // - It is adjacent to an edge (start or end)
4692 // - It is adjacent to a whitespace (left or right)
4693 ShowWhitespaceSetting::Boundary => {
4694 // 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
4695 // the above cases.
4696 // Note: We zip in the original `invisibles` to check for tab equality
4697 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut WindowContext)>)> = None;
4698 for (([start, end], paint), invisible) in
4699 invisible_iter.zip_eq(self.invisibles.iter())
4700 {
4701 let should_render = match (&last_seen, invisible) {
4702 (_, Invisible::Tab { .. }) => true,
4703 (Some((_, last_end, _)), _) => *last_end == start,
4704 _ => false,
4705 };
4706
4707 if should_render || start == 0 || end == self.len {
4708 paint(cx);
4709
4710 // Since we are scanning from the left, we will skip over the first available whitespace that is part
4711 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
4712 if let Some((should_render_last, last_end, paint_last)) = last_seen {
4713 // Note that we need to make sure that the last one is actually adjacent
4714 if !should_render_last && last_end == start {
4715 paint_last(cx);
4716 }
4717 }
4718 }
4719
4720 // Manually render anything within a selection
4721 let invisible_point = DisplayPoint::new(row, start as u32);
4722 if selection_ranges.iter().any(|region| {
4723 region.start <= invisible_point && invisible_point < region.end
4724 }) {
4725 paint(cx);
4726 }
4727
4728 last_seen = Some((should_render, end, paint));
4729 }
4730 }
4731 }
4732 }
4733
4734 pub fn x_for_index(&self, index: usize) -> Pixels {
4735 let mut fragment_start_x = Pixels::ZERO;
4736 let mut fragment_start_index = 0;
4737
4738 for fragment in &self.fragments {
4739 match fragment {
4740 LineFragment::Text(shaped_line) => {
4741 let fragment_end_index = fragment_start_index + shaped_line.len;
4742 if index < fragment_end_index {
4743 return fragment_start_x
4744 + shaped_line.x_for_index(index - fragment_start_index);
4745 }
4746 fragment_start_x += shaped_line.width;
4747 fragment_start_index = fragment_end_index;
4748 }
4749 LineFragment::Element { len, size, .. } => {
4750 let fragment_end_index = fragment_start_index + len;
4751 if index < fragment_end_index {
4752 return fragment_start_x;
4753 }
4754 fragment_start_x += size.width;
4755 fragment_start_index = fragment_end_index;
4756 }
4757 }
4758 }
4759
4760 fragment_start_x
4761 }
4762
4763 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
4764 let mut fragment_start_x = Pixels::ZERO;
4765 let mut fragment_start_index = 0;
4766
4767 for fragment in &self.fragments {
4768 match fragment {
4769 LineFragment::Text(shaped_line) => {
4770 let fragment_end_x = fragment_start_x + shaped_line.width;
4771 if x < fragment_end_x {
4772 return Some(
4773 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
4774 );
4775 }
4776 fragment_start_x = fragment_end_x;
4777 fragment_start_index += shaped_line.len;
4778 }
4779 LineFragment::Element { len, size, .. } => {
4780 let fragment_end_x = fragment_start_x + size.width;
4781 if x < fragment_end_x {
4782 return Some(fragment_start_index);
4783 }
4784 fragment_start_index += len;
4785 fragment_start_x = fragment_end_x;
4786 }
4787 }
4788 }
4789
4790 None
4791 }
4792
4793 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
4794 let mut fragment_start_index = 0;
4795
4796 for fragment in &self.fragments {
4797 match fragment {
4798 LineFragment::Text(shaped_line) => {
4799 let fragment_end_index = fragment_start_index + shaped_line.len;
4800 if index < fragment_end_index {
4801 return shaped_line.font_id_for_index(index - fragment_start_index);
4802 }
4803 fragment_start_index = fragment_end_index;
4804 }
4805 LineFragment::Element { len, .. } => {
4806 let fragment_end_index = fragment_start_index + len;
4807 if index < fragment_end_index {
4808 return None;
4809 }
4810 fragment_start_index = fragment_end_index;
4811 }
4812 }
4813 }
4814
4815 None
4816 }
4817}
4818
4819#[derive(Debug, Clone, Copy, PartialEq, Eq)]
4820enum Invisible {
4821 /// A tab character
4822 ///
4823 /// A tab character is internally represented by spaces (configured by the user's tab width)
4824 /// aligned to the nearest column, so it's necessary to store the start and end offset for
4825 /// adjacency checks.
4826 Tab {
4827 line_start_offset: usize,
4828 line_end_offset: usize,
4829 },
4830 Whitespace {
4831 line_offset: usize,
4832 },
4833}
4834
4835impl EditorElement {
4836 /// Returns the rem size to use when rendering the [`EditorElement`].
4837 ///
4838 /// This allows UI elements to scale based on the `buffer_font_size`.
4839 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
4840 match self.editor.read(cx).mode {
4841 EditorMode::Full => {
4842 let buffer_font_size = self.style.text.font_size;
4843 match buffer_font_size {
4844 AbsoluteLength::Pixels(pixels) => {
4845 let rem_size_scale = {
4846 // Our default UI font size is 14px on a 16px base scale.
4847 // This means the default UI font size is 0.875rems.
4848 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
4849
4850 // We then determine the delta between a single rem and the default font
4851 // size scale.
4852 let default_font_size_delta = 1. - default_font_size_scale;
4853
4854 // Finally, we add this delta to 1rem to get the scale factor that
4855 // should be used to scale up the UI.
4856 1. + default_font_size_delta
4857 };
4858
4859 Some(pixels * rem_size_scale)
4860 }
4861 AbsoluteLength::Rems(rems) => {
4862 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
4863 }
4864 }
4865 }
4866 // We currently use single-line and auto-height editors in UI contexts,
4867 // so we don't want to scale everything with the buffer font size, as it
4868 // ends up looking off.
4869 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
4870 }
4871 }
4872}
4873
4874impl Element for EditorElement {
4875 type RequestLayoutState = ();
4876 type PrepaintState = EditorLayout;
4877
4878 fn id(&self) -> Option<ElementId> {
4879 None
4880 }
4881
4882 fn request_layout(
4883 &mut self,
4884 _: Option<&GlobalElementId>,
4885 cx: &mut WindowContext,
4886 ) -> (gpui::LayoutId, ()) {
4887 let rem_size = self.rem_size(cx);
4888 cx.with_rem_size(rem_size, |cx| {
4889 self.editor.update(cx, |editor, cx| {
4890 editor.set_style(self.style.clone(), cx);
4891
4892 let layout_id = match editor.mode {
4893 EditorMode::SingleLine { auto_width } => {
4894 let rem_size = cx.rem_size();
4895
4896 let height = self.style.text.line_height_in_pixels(rem_size);
4897 if auto_width {
4898 let editor_handle = cx.view().clone();
4899 let style = self.style.clone();
4900 cx.request_measured_layout(Style::default(), move |_, _, cx| {
4901 let editor_snapshot =
4902 editor_handle.update(cx, |editor, cx| editor.snapshot(cx));
4903 let line = Self::layout_lines(
4904 DisplayRow(0)..DisplayRow(1),
4905 &editor_snapshot,
4906 &style,
4907 px(f32::MAX),
4908 |_| false, // Single lines never soft wrap
4909 cx,
4910 )
4911 .pop()
4912 .unwrap();
4913
4914 let font_id = cx.text_system().resolve_font(&style.text.font());
4915 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4916 let em_width = cx
4917 .text_system()
4918 .typographic_bounds(font_id, font_size, 'm')
4919 .unwrap()
4920 .size
4921 .width;
4922
4923 size(line.width + em_width, height)
4924 })
4925 } else {
4926 let mut style = Style::default();
4927 style.size.height = height.into();
4928 style.size.width = relative(1.).into();
4929 cx.request_layout(style, None)
4930 }
4931 }
4932 EditorMode::AutoHeight { max_lines } => {
4933 let editor_handle = cx.view().clone();
4934 let max_line_number_width =
4935 self.max_line_number_width(&editor.snapshot(cx), cx);
4936 cx.request_measured_layout(
4937 Style::default(),
4938 move |known_dimensions, available_space, cx| {
4939 editor_handle
4940 .update(cx, |editor, cx| {
4941 compute_auto_height_layout(
4942 editor,
4943 max_lines,
4944 max_line_number_width,
4945 known_dimensions,
4946 available_space.width,
4947 cx,
4948 )
4949 })
4950 .unwrap_or_default()
4951 },
4952 )
4953 }
4954 EditorMode::Full => {
4955 let mut style = Style::default();
4956 style.size.width = relative(1.).into();
4957 style.size.height = relative(1.).into();
4958 cx.request_layout(style, None)
4959 }
4960 };
4961
4962 (layout_id, ())
4963 })
4964 })
4965 }
4966
4967 fn prepaint(
4968 &mut self,
4969 _: Option<&GlobalElementId>,
4970 bounds: Bounds<Pixels>,
4971 _: &mut Self::RequestLayoutState,
4972 cx: &mut WindowContext,
4973 ) -> Self::PrepaintState {
4974 let text_style = TextStyleRefinement {
4975 font_size: Some(self.style.text.font_size),
4976 line_height: Some(self.style.text.line_height),
4977 ..Default::default()
4978 };
4979 let focus_handle = self.editor.focus_handle(cx);
4980 cx.set_view_id(self.editor.entity_id());
4981 cx.set_focus_handle(&focus_handle);
4982
4983 let rem_size = self.rem_size(cx);
4984 cx.with_rem_size(rem_size, |cx| {
4985 cx.with_text_style(Some(text_style), |cx| {
4986 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
4987 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
4988 let style = self.style.clone();
4989
4990 let font_id = cx.text_system().resolve_font(&style.text.font());
4991 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4992 let line_height = style.text.line_height_in_pixels(cx.rem_size());
4993 let em_width = cx
4994 .text_system()
4995 .typographic_bounds(font_id, font_size, 'm')
4996 .unwrap()
4997 .size
4998 .width;
4999 let em_advance = cx
5000 .text_system()
5001 .advance(font_id, font_size, 'm')
5002 .unwrap()
5003 .width;
5004
5005 let gutter_dimensions = snapshot.gutter_dimensions(
5006 font_id,
5007 font_size,
5008 em_width,
5009 em_advance,
5010 self.max_line_number_width(&snapshot, cx),
5011 cx,
5012 );
5013 let text_width = bounds.size.width - gutter_dimensions.width;
5014
5015 let right_margin = if snapshot.mode == EditorMode::Full {
5016 EditorElement::SCROLLBAR_WIDTH
5017 } else {
5018 px(0.)
5019 };
5020 let overscroll = size(em_width + right_margin, px(0.));
5021
5022 let editor_width =
5023 text_width - gutter_dimensions.margin - overscroll.width - em_width;
5024
5025 snapshot = self.editor.update(cx, |editor, cx| {
5026 editor.last_bounds = Some(bounds);
5027 editor.gutter_dimensions = gutter_dimensions;
5028 editor.set_visible_line_count(bounds.size.height / line_height, cx);
5029
5030 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
5031 snapshot
5032 } else {
5033 let wrap_width = match editor.soft_wrap_mode(cx) {
5034 SoftWrap::GitDiff => None,
5035 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
5036 SoftWrap::EditorWidth => Some(editor_width),
5037 SoftWrap::Column(column) => Some(column as f32 * em_advance),
5038 SoftWrap::Bounded(column) => {
5039 Some(editor_width.min(column as f32 * em_advance))
5040 }
5041 };
5042
5043 if editor.set_wrap_width(wrap_width, cx) {
5044 editor.snapshot(cx)
5045 } else {
5046 snapshot
5047 }
5048 }
5049 });
5050
5051 let wrap_guides = self
5052 .editor
5053 .read(cx)
5054 .wrap_guides(cx)
5055 .iter()
5056 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
5057 .collect::<SmallVec<[_; 2]>>();
5058
5059 let hitbox = cx.insert_hitbox(bounds, false);
5060 let gutter_hitbox =
5061 cx.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
5062 let text_hitbox = cx.insert_hitbox(
5063 Bounds {
5064 origin: gutter_hitbox.upper_right(),
5065 size: size(text_width, bounds.size.height),
5066 },
5067 false,
5068 );
5069 // Offset the content_bounds from the text_bounds by the gutter margin (which
5070 // is roughly half a character wide) to make hit testing work more like how we want.
5071 let content_origin =
5072 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
5073
5074 let height_in_lines = bounds.size.height / line_height;
5075 let max_row = snapshot.max_point().row().as_f32();
5076 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
5077 (max_row - height_in_lines + 1.).max(0.)
5078 } else {
5079 let settings = EditorSettings::get_global(cx);
5080 match settings.scroll_beyond_last_line {
5081 ScrollBeyondLastLine::OnePage => max_row,
5082 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
5083 ScrollBeyondLastLine::VerticalScrollMargin => {
5084 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
5085 .max(0.)
5086 }
5087 }
5088 };
5089
5090 let mut autoscroll_request = None;
5091 let mut autoscroll_containing_element = false;
5092 let mut autoscroll_horizontally = false;
5093 self.editor.update(cx, |editor, cx| {
5094 autoscroll_request = editor.autoscroll_request();
5095 autoscroll_containing_element =
5096 autoscroll_request.is_some() || editor.has_pending_selection();
5097 autoscroll_horizontally =
5098 editor.autoscroll_vertically(bounds, line_height, max_scroll_top, cx);
5099 snapshot = editor.snapshot(cx);
5100 });
5101
5102 let mut scroll_position = snapshot.scroll_position();
5103 // The scroll position is a fractional point, the whole number of which represents
5104 // the top of the window in terms of display rows.
5105 let start_row = DisplayRow(scroll_position.y as u32);
5106 let max_row = snapshot.max_point().row();
5107 let end_row = cmp::min(
5108 (scroll_position.y + height_in_lines).ceil() as u32,
5109 max_row.next_row().0,
5110 );
5111 let end_row = DisplayRow(end_row);
5112
5113 let buffer_rows = snapshot
5114 .buffer_rows(start_row)
5115 .take((start_row..end_row).len())
5116 .collect::<Vec<_>>();
5117 let is_row_soft_wrapped =
5118 |row| buffer_rows.get(row).copied().flatten().is_none();
5119
5120 let start_anchor = if start_row == Default::default() {
5121 Anchor::min()
5122 } else {
5123 snapshot.buffer_snapshot.anchor_before(
5124 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
5125 )
5126 };
5127 let end_anchor = if end_row > max_row {
5128 Anchor::max()
5129 } else {
5130 snapshot.buffer_snapshot.anchor_before(
5131 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
5132 )
5133 };
5134
5135 let highlighted_rows = self
5136 .editor
5137 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
5138 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
5139 start_anchor..end_anchor,
5140 &snapshot.display_snapshot,
5141 cx.theme().colors(),
5142 );
5143 let highlighted_gutter_ranges =
5144 self.editor.read(cx).gutter_highlights_in_range(
5145 start_anchor..end_anchor,
5146 &snapshot.display_snapshot,
5147 cx,
5148 );
5149
5150 let redacted_ranges = self.editor.read(cx).redacted_ranges(
5151 start_anchor..end_anchor,
5152 &snapshot.display_snapshot,
5153 cx,
5154 );
5155
5156 let local_selections: Vec<Selection<Point>> =
5157 self.editor.update(cx, |editor, cx| {
5158 let mut selections = editor
5159 .selections
5160 .disjoint_in_range(start_anchor..end_anchor, cx);
5161 selections.extend(editor.selections.pending(cx));
5162 selections
5163 });
5164
5165 let (selections, active_rows, newest_selection_head) = self.layout_selections(
5166 start_anchor,
5167 end_anchor,
5168 &local_selections,
5169 &snapshot,
5170 start_row,
5171 end_row,
5172 cx,
5173 );
5174
5175 let line_numbers = self.layout_line_numbers(
5176 start_row..end_row,
5177 buffer_rows.iter().copied(),
5178 &active_rows,
5179 newest_selection_head,
5180 &snapshot,
5181 cx,
5182 );
5183
5184 let mut crease_toggles = cx.with_element_namespace("crease_toggles", |cx| {
5185 self.layout_crease_toggles(
5186 start_row..end_row,
5187 buffer_rows.iter().copied(),
5188 &active_rows,
5189 &snapshot,
5190 cx,
5191 )
5192 });
5193 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5194 self.layout_crease_trailers(buffer_rows.iter().copied(), &snapshot, cx)
5195 });
5196
5197 let display_hunks = self.layout_gutter_git_hunks(
5198 line_height,
5199 &gutter_hitbox,
5200 start_row..end_row,
5201 start_anchor..end_anchor,
5202 &snapshot,
5203 cx,
5204 );
5205
5206 let mut max_visible_line_width = Pixels::ZERO;
5207 let mut line_layouts = Self::layout_lines(
5208 start_row..end_row,
5209 &snapshot,
5210 &self.style,
5211 editor_width,
5212 is_row_soft_wrapped,
5213 cx,
5214 );
5215 for line_with_invisibles in &line_layouts {
5216 if line_with_invisibles.width > max_visible_line_width {
5217 max_visible_line_width = line_with_invisibles.width;
5218 }
5219 }
5220
5221 let longest_line_width = layout_line(
5222 snapshot.longest_row(),
5223 &snapshot,
5224 &style,
5225 editor_width,
5226 is_row_soft_wrapped,
5227 cx,
5228 )
5229 .width;
5230 let mut scroll_width =
5231 longest_line_width.max(max_visible_line_width) + overscroll.width;
5232
5233 let blocks = cx.with_element_namespace("blocks", |cx| {
5234 self.render_blocks(
5235 start_row..end_row,
5236 &snapshot,
5237 &hitbox,
5238 &text_hitbox,
5239 editor_width,
5240 &mut scroll_width,
5241 &gutter_dimensions,
5242 em_width,
5243 gutter_dimensions.full_width(),
5244 line_height,
5245 &line_layouts,
5246 &local_selections,
5247 is_row_soft_wrapped,
5248 cx,
5249 )
5250 });
5251 let mut blocks = match blocks {
5252 Ok(blocks) => blocks,
5253 Err(resized_blocks) => {
5254 self.editor.update(cx, |editor, cx| {
5255 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
5256 });
5257 return self.prepaint(None, bounds, &mut (), cx);
5258 }
5259 };
5260
5261 let start_buffer_row =
5262 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
5263 let end_buffer_row =
5264 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
5265
5266 let scroll_max = point(
5267 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5268 max_row.as_f32(),
5269 );
5270
5271 self.editor.update(cx, |editor, cx| {
5272 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5273
5274 let autoscrolled = if autoscroll_horizontally {
5275 editor.autoscroll_horizontally(
5276 start_row,
5277 text_hitbox.size.width,
5278 scroll_width,
5279 em_width,
5280 &line_layouts,
5281 cx,
5282 )
5283 } else {
5284 false
5285 };
5286
5287 if clamped || autoscrolled {
5288 snapshot = editor.snapshot(cx);
5289 scroll_position = snapshot.scroll_position();
5290 }
5291 });
5292
5293 let scroll_pixel_position = point(
5294 scroll_position.x * em_width,
5295 scroll_position.y * line_height,
5296 );
5297
5298 let indent_guides = self.layout_indent_guides(
5299 content_origin,
5300 text_hitbox.origin,
5301 start_buffer_row..end_buffer_row,
5302 scroll_pixel_position,
5303 line_height,
5304 &snapshot,
5305 cx,
5306 );
5307
5308 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5309 self.prepaint_crease_trailers(
5310 crease_trailers,
5311 &line_layouts,
5312 line_height,
5313 content_origin,
5314 scroll_pixel_position,
5315 em_width,
5316 cx,
5317 )
5318 });
5319
5320 let mut inline_blame = None;
5321 if let Some(newest_selection_head) = newest_selection_head {
5322 let display_row = newest_selection_head.row();
5323 if (start_row..end_row).contains(&display_row) {
5324 let line_ix = display_row.minus(start_row) as usize;
5325 let line_layout = &line_layouts[line_ix];
5326 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
5327 inline_blame = self.layout_inline_blame(
5328 display_row,
5329 &snapshot.display_snapshot,
5330 line_layout,
5331 crease_trailer_layout,
5332 em_width,
5333 content_origin,
5334 scroll_pixel_position,
5335 line_height,
5336 cx,
5337 );
5338 }
5339 }
5340
5341 let blamed_display_rows = self.layout_blame_entries(
5342 buffer_rows.into_iter(),
5343 em_width,
5344 scroll_position,
5345 line_height,
5346 &gutter_hitbox,
5347 gutter_dimensions.git_blame_entries_width,
5348 cx,
5349 );
5350
5351 let scroll_max = point(
5352 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5353 max_scroll_top,
5354 );
5355
5356 self.editor.update(cx, |editor, cx| {
5357 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5358
5359 let autoscrolled = if autoscroll_horizontally {
5360 editor.autoscroll_horizontally(
5361 start_row,
5362 text_hitbox.size.width,
5363 scroll_width,
5364 em_width,
5365 &line_layouts,
5366 cx,
5367 )
5368 } else {
5369 false
5370 };
5371
5372 if clamped || autoscrolled {
5373 snapshot = editor.snapshot(cx);
5374 scroll_position = snapshot.scroll_position();
5375 }
5376 });
5377
5378 let line_elements = self.prepaint_lines(
5379 start_row,
5380 &mut line_layouts,
5381 line_height,
5382 scroll_pixel_position,
5383 content_origin,
5384 cx,
5385 );
5386
5387 let mut block_start_rows = HashSet::default();
5388 cx.with_element_namespace("blocks", |cx| {
5389 self.layout_blocks(
5390 &mut blocks,
5391 &mut block_start_rows,
5392 &hitbox,
5393 line_height,
5394 scroll_pixel_position,
5395 cx,
5396 );
5397 });
5398
5399 let cursors = self.collect_cursors(&snapshot, cx);
5400 let visible_row_range = start_row..end_row;
5401 let non_visible_cursors = cursors
5402 .iter()
5403 .any(move |c| !visible_row_range.contains(&c.0.row()));
5404
5405 let visible_cursors = self.layout_visible_cursors(
5406 &snapshot,
5407 &selections,
5408 &block_start_rows,
5409 start_row..end_row,
5410 &line_layouts,
5411 &text_hitbox,
5412 content_origin,
5413 scroll_position,
5414 scroll_pixel_position,
5415 line_height,
5416 em_width,
5417 autoscroll_containing_element,
5418 cx,
5419 );
5420
5421 let scrollbar_layout = self.layout_scrollbar(
5422 &snapshot,
5423 bounds,
5424 scroll_position,
5425 height_in_lines,
5426 non_visible_cursors,
5427 cx,
5428 );
5429
5430 let gutter_settings = EditorSettings::get_global(cx).gutter;
5431
5432 let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
5433 editor
5434 .diff_map
5435 .hunks(false)
5436 .filter(|hunk| hunk.status == DiffHunkStatus::Added)
5437 .map(|expanded_hunk| {
5438 let start_row = expanded_hunk
5439 .hunk_range
5440 .start
5441 .to_display_point(&snapshot)
5442 .row();
5443 (start_row, expanded_hunk.clone())
5444 })
5445 .collect::<HashMap<_, _>>()
5446 });
5447
5448 let rows_with_hunk_bounds = display_hunks
5449 .iter()
5450 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
5451 .fold(
5452 HashMap::default(),
5453 |mut rows_with_hunk_bounds, (hunk, bounds)| {
5454 match hunk {
5455 DisplayDiffHunk::Folded { display_row } => {
5456 rows_with_hunk_bounds.insert(*display_row, bounds);
5457 }
5458 DisplayDiffHunk::Unfolded {
5459 display_row_range, ..
5460 } => {
5461 for display_row in display_row_range.iter_rows() {
5462 rows_with_hunk_bounds.insert(display_row, bounds);
5463 }
5464 }
5465 }
5466 rows_with_hunk_bounds
5467 },
5468 );
5469 let mut _context_menu_visible = false;
5470 let mut code_actions_indicator = None;
5471 if let Some(newest_selection_head) = newest_selection_head {
5472 if (start_row..end_row).contains(&newest_selection_head.row()) {
5473 _context_menu_visible = self.layout_context_menu(
5474 line_height,
5475 &hitbox,
5476 &text_hitbox,
5477 content_origin,
5478 start_row,
5479 scroll_pixel_position,
5480 &line_layouts,
5481 newest_selection_head,
5482 gutter_dimensions.width - gutter_dimensions.left_padding,
5483 cx,
5484 );
5485
5486 let show_code_actions = snapshot
5487 .show_code_actions
5488 .unwrap_or(gutter_settings.code_actions);
5489 if show_code_actions {
5490 let newest_selection_point =
5491 newest_selection_head.to_point(&snapshot.display_snapshot);
5492 let newest_selection_display_row =
5493 newest_selection_point.to_display_point(&snapshot).row();
5494 if !expanded_add_hunks_by_rows
5495 .contains_key(&newest_selection_display_row)
5496 {
5497 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
5498 MultiBufferRow(newest_selection_point.row),
5499 );
5500 if let Some((buffer, range)) = buffer {
5501 let buffer_id = buffer.remote_id();
5502 let row = range.start.row;
5503 let has_test_indicator = self
5504 .editor
5505 .read(cx)
5506 .tasks
5507 .contains_key(&(buffer_id, row));
5508
5509 if !has_test_indicator {
5510 code_actions_indicator = self
5511 .layout_code_actions_indicator(
5512 line_height,
5513 newest_selection_head,
5514 scroll_pixel_position,
5515 &gutter_dimensions,
5516 &gutter_hitbox,
5517 &rows_with_hunk_bounds,
5518 cx,
5519 );
5520 }
5521 }
5522 }
5523 }
5524 }
5525 }
5526
5527 let test_indicators = if gutter_settings.runnables {
5528 self.layout_run_indicators(
5529 line_height,
5530 start_row..end_row,
5531 scroll_pixel_position,
5532 &gutter_dimensions,
5533 &gutter_hitbox,
5534 &rows_with_hunk_bounds,
5535 &snapshot,
5536 cx,
5537 )
5538 } else {
5539 Vec::new()
5540 };
5541
5542 self.layout_signature_help(
5543 &hitbox,
5544 content_origin,
5545 scroll_pixel_position,
5546 newest_selection_head,
5547 start_row,
5548 &line_layouts,
5549 line_height,
5550 em_width,
5551 cx,
5552 );
5553
5554 if !cx.has_active_drag() {
5555 self.layout_hover_popovers(
5556 &snapshot,
5557 &hitbox,
5558 &text_hitbox,
5559 start_row..end_row,
5560 content_origin,
5561 scroll_pixel_position,
5562 &line_layouts,
5563 line_height,
5564 em_width,
5565 cx,
5566 );
5567 }
5568
5569 let mouse_context_menu = self.layout_mouse_context_menu(
5570 &snapshot,
5571 start_row..end_row,
5572 content_origin,
5573 cx,
5574 );
5575
5576 cx.with_element_namespace("crease_toggles", |cx| {
5577 self.prepaint_crease_toggles(
5578 &mut crease_toggles,
5579 line_height,
5580 &gutter_dimensions,
5581 gutter_settings,
5582 scroll_pixel_position,
5583 &gutter_hitbox,
5584 cx,
5585 )
5586 });
5587
5588 let invisible_symbol_font_size = font_size / 2.;
5589 let tab_invisible = cx
5590 .text_system()
5591 .shape_line(
5592 "→".into(),
5593 invisible_symbol_font_size,
5594 &[TextRun {
5595 len: "→".len(),
5596 font: self.style.text.font(),
5597 color: cx.theme().colors().editor_invisible,
5598 background_color: None,
5599 underline: None,
5600 strikethrough: None,
5601 }],
5602 )
5603 .unwrap();
5604 let space_invisible = cx
5605 .text_system()
5606 .shape_line(
5607 "•".into(),
5608 invisible_symbol_font_size,
5609 &[TextRun {
5610 len: "•".len(),
5611 font: self.style.text.font(),
5612 color: cx.theme().colors().editor_invisible,
5613 background_color: None,
5614 underline: None,
5615 strikethrough: None,
5616 }],
5617 )
5618 .unwrap();
5619
5620 EditorLayout {
5621 mode: snapshot.mode,
5622 position_map: Rc::new(PositionMap {
5623 size: bounds.size,
5624 scroll_pixel_position,
5625 scroll_max,
5626 line_layouts,
5627 line_height,
5628 em_width,
5629 em_advance,
5630 snapshot,
5631 }),
5632 visible_display_row_range: start_row..end_row,
5633 wrap_guides,
5634 indent_guides,
5635 hitbox,
5636 text_hitbox,
5637 gutter_hitbox,
5638 gutter_dimensions,
5639 display_hunks,
5640 content_origin,
5641 scrollbar_layout,
5642 active_rows,
5643 highlighted_rows,
5644 highlighted_ranges,
5645 highlighted_gutter_ranges,
5646 redacted_ranges,
5647 line_elements,
5648 line_numbers,
5649 blamed_display_rows,
5650 inline_blame,
5651 blocks,
5652 cursors,
5653 visible_cursors,
5654 selections,
5655 mouse_context_menu,
5656 test_indicators,
5657 code_actions_indicator,
5658 crease_toggles,
5659 crease_trailers,
5660 tab_invisible,
5661 space_invisible,
5662 }
5663 })
5664 })
5665 })
5666 }
5667
5668 fn paint(
5669 &mut self,
5670 _: Option<&GlobalElementId>,
5671 bounds: Bounds<gpui::Pixels>,
5672 _: &mut Self::RequestLayoutState,
5673 layout: &mut Self::PrepaintState,
5674 cx: &mut WindowContext,
5675 ) {
5676 let focus_handle = self.editor.focus_handle(cx);
5677 let key_context = self.editor.update(cx, |editor, cx| editor.key_context(cx));
5678 cx.set_key_context(key_context);
5679 cx.handle_input(
5680 &focus_handle,
5681 ElementInputHandler::new(bounds, self.editor.clone()),
5682 );
5683 self.register_actions(cx);
5684 self.register_key_listeners(cx, layout);
5685
5686 let text_style = TextStyleRefinement {
5687 font_size: Some(self.style.text.font_size),
5688 line_height: Some(self.style.text.line_height),
5689 ..Default::default()
5690 };
5691 let hovered_hunk = layout
5692 .display_hunks
5693 .iter()
5694 .find_map(|(hunk, hunk_hitbox)| match hunk {
5695 DisplayDiffHunk::Folded { .. } => None,
5696 DisplayDiffHunk::Unfolded {
5697 diff_base_byte_range,
5698 multi_buffer_range,
5699 status,
5700 ..
5701 } => {
5702 if hunk_hitbox
5703 .as_ref()
5704 .map(|hitbox| hitbox.is_hovered(cx))
5705 .unwrap_or(false)
5706 {
5707 Some(HoveredHunk {
5708 status: *status,
5709 multi_buffer_range: multi_buffer_range.clone(),
5710 diff_base_byte_range: diff_base_byte_range.clone(),
5711 })
5712 } else {
5713 None
5714 }
5715 }
5716 });
5717 let rem_size = self.rem_size(cx);
5718 cx.with_rem_size(rem_size, |cx| {
5719 cx.with_text_style(Some(text_style), |cx| {
5720 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
5721 self.paint_mouse_listeners(layout, hovered_hunk, cx);
5722 self.paint_background(layout, cx);
5723 self.paint_indent_guides(layout, cx);
5724
5725 if layout.gutter_hitbox.size.width > Pixels::ZERO {
5726 self.paint_blamed_display_rows(layout, cx);
5727 self.paint_line_numbers(layout, cx);
5728 }
5729
5730 self.paint_text(layout, cx);
5731
5732 if layout.gutter_hitbox.size.width > Pixels::ZERO {
5733 self.paint_gutter_highlights(layout, cx);
5734 self.paint_gutter_indicators(layout, cx);
5735 }
5736
5737 if !layout.blocks.is_empty() {
5738 cx.with_element_namespace("blocks", |cx| {
5739 self.paint_blocks(layout, cx);
5740 });
5741 }
5742
5743 self.paint_scrollbar(layout, cx);
5744 self.paint_mouse_context_menu(layout, cx);
5745 });
5746 })
5747 })
5748 }
5749}
5750
5751pub(super) fn gutter_bounds(
5752 editor_bounds: Bounds<Pixels>,
5753 gutter_dimensions: GutterDimensions,
5754) -> Bounds<Pixels> {
5755 Bounds {
5756 origin: editor_bounds.origin,
5757 size: size(gutter_dimensions.width, editor_bounds.size.height),
5758 }
5759}
5760
5761impl IntoElement for EditorElement {
5762 type Element = Self;
5763
5764 fn into_element(self) -> Self::Element {
5765 self
5766 }
5767}
5768
5769pub struct EditorLayout {
5770 position_map: Rc<PositionMap>,
5771 hitbox: Hitbox,
5772 text_hitbox: Hitbox,
5773 gutter_hitbox: Hitbox,
5774 gutter_dimensions: GutterDimensions,
5775 content_origin: gpui::Point<Pixels>,
5776 scrollbar_layout: Option<ScrollbarLayout>,
5777 mode: EditorMode,
5778 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
5779 indent_guides: Option<Vec<IndentGuideLayout>>,
5780 visible_display_row_range: Range<DisplayRow>,
5781 active_rows: BTreeMap<DisplayRow, bool>,
5782 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
5783 line_elements: SmallVec<[AnyElement; 1]>,
5784 line_numbers: Vec<Option<ShapedLine>>,
5785 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
5786 blamed_display_rows: Option<Vec<AnyElement>>,
5787 inline_blame: Option<AnyElement>,
5788 blocks: Vec<BlockLayout>,
5789 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
5790 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
5791 redacted_ranges: Vec<Range<DisplayPoint>>,
5792 cursors: Vec<(DisplayPoint, Hsla)>,
5793 visible_cursors: Vec<CursorLayout>,
5794 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
5795 code_actions_indicator: Option<AnyElement>,
5796 test_indicators: Vec<AnyElement>,
5797 crease_toggles: Vec<Option<AnyElement>>,
5798 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
5799 mouse_context_menu: Option<AnyElement>,
5800 tab_invisible: ShapedLine,
5801 space_invisible: ShapedLine,
5802}
5803
5804impl EditorLayout {
5805 fn line_end_overshoot(&self) -> Pixels {
5806 0.15 * self.position_map.line_height
5807 }
5808}
5809
5810struct ColoredRange<T> {
5811 start: T,
5812 end: T,
5813 color: Hsla,
5814}
5815
5816#[derive(Clone)]
5817struct ScrollbarLayout {
5818 hitbox: Hitbox,
5819 visible_row_range: Range<f32>,
5820 visible: bool,
5821 row_height: Pixels,
5822 thumb_height: Pixels,
5823}
5824
5825impl ScrollbarLayout {
5826 const BORDER_WIDTH: Pixels = px(1.0);
5827 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
5828 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
5829 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
5830
5831 fn thumb_bounds(&self) -> Bounds<Pixels> {
5832 let thumb_top = self.y_for_row(self.visible_row_range.start);
5833 let thumb_bottom = thumb_top + self.thumb_height;
5834 Bounds::from_corners(
5835 point(self.hitbox.left(), thumb_top),
5836 point(self.hitbox.right(), thumb_bottom),
5837 )
5838 }
5839
5840 fn y_for_row(&self, row: f32) -> Pixels {
5841 self.hitbox.top() + row * self.row_height
5842 }
5843
5844 fn marker_quads_for_ranges(
5845 &self,
5846 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
5847 column: Option<usize>,
5848 ) -> Vec<PaintQuad> {
5849 struct MinMax {
5850 min: Pixels,
5851 max: Pixels,
5852 }
5853 let (x_range, height_limit) = if let Some(column) = column {
5854 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
5855 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
5856 let end = start + column_width;
5857 (
5858 Range { start, end },
5859 MinMax {
5860 min: Self::MIN_MARKER_HEIGHT,
5861 max: px(f32::MAX),
5862 },
5863 )
5864 } else {
5865 (
5866 Range {
5867 start: Self::BORDER_WIDTH,
5868 end: self.hitbox.size.width,
5869 },
5870 MinMax {
5871 min: Self::LINE_MARKER_HEIGHT,
5872 max: Self::LINE_MARKER_HEIGHT,
5873 },
5874 )
5875 };
5876
5877 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
5878 let mut pixel_ranges = row_ranges
5879 .into_iter()
5880 .map(|range| {
5881 let start_y = row_to_y(range.start);
5882 let end_y = row_to_y(range.end)
5883 + self.row_height.max(height_limit.min).min(height_limit.max);
5884 ColoredRange {
5885 start: start_y,
5886 end: end_y,
5887 color: range.color,
5888 }
5889 })
5890 .peekable();
5891
5892 let mut quads = Vec::new();
5893 while let Some(mut pixel_range) = pixel_ranges.next() {
5894 while let Some(next_pixel_range) = pixel_ranges.peek() {
5895 if pixel_range.end >= next_pixel_range.start - px(1.0)
5896 && pixel_range.color == next_pixel_range.color
5897 {
5898 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
5899 pixel_ranges.next();
5900 } else {
5901 break;
5902 }
5903 }
5904
5905 let bounds = Bounds::from_corners(
5906 point(x_range.start, pixel_range.start),
5907 point(x_range.end, pixel_range.end),
5908 );
5909 quads.push(quad(
5910 bounds,
5911 Corners::default(),
5912 pixel_range.color,
5913 Edges::default(),
5914 Hsla::transparent_black(),
5915 ));
5916 }
5917
5918 quads
5919 }
5920}
5921
5922struct CreaseTrailerLayout {
5923 element: AnyElement,
5924 bounds: Bounds<Pixels>,
5925}
5926
5927struct PositionMap {
5928 size: Size<Pixels>,
5929 line_height: Pixels,
5930 scroll_pixel_position: gpui::Point<Pixels>,
5931 scroll_max: gpui::Point<f32>,
5932 em_width: Pixels,
5933 em_advance: Pixels,
5934 line_layouts: Vec<LineWithInvisibles>,
5935 snapshot: EditorSnapshot,
5936}
5937
5938#[derive(Debug, Copy, Clone)]
5939pub struct PointForPosition {
5940 pub previous_valid: DisplayPoint,
5941 pub next_valid: DisplayPoint,
5942 pub exact_unclipped: DisplayPoint,
5943 pub column_overshoot_after_line_end: u32,
5944}
5945
5946impl PointForPosition {
5947 pub fn as_valid(&self) -> Option<DisplayPoint> {
5948 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
5949 Some(self.previous_valid)
5950 } else {
5951 None
5952 }
5953 }
5954}
5955
5956impl PositionMap {
5957 fn point_for_position(
5958 &self,
5959 text_bounds: Bounds<Pixels>,
5960 position: gpui::Point<Pixels>,
5961 ) -> PointForPosition {
5962 let scroll_position = self.snapshot.scroll_position();
5963 let position = position - text_bounds.origin;
5964 let y = position.y.max(px(0.)).min(self.size.height);
5965 let x = position.x + (scroll_position.x * self.em_width);
5966 let row = ((y / self.line_height) + scroll_position.y) as u32;
5967
5968 let (column, x_overshoot_after_line_end) = if let Some(line) = self
5969 .line_layouts
5970 .get(row as usize - scroll_position.y as usize)
5971 {
5972 if let Some(ix) = line.index_for_x(x) {
5973 (ix as u32, px(0.))
5974 } else {
5975 (line.len as u32, px(0.).max(x - line.width))
5976 }
5977 } else {
5978 (0, x)
5979 };
5980
5981 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
5982 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
5983 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
5984
5985 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
5986 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
5987 PointForPosition {
5988 previous_valid,
5989 next_valid,
5990 exact_unclipped,
5991 column_overshoot_after_line_end,
5992 }
5993 }
5994}
5995
5996struct BlockLayout {
5997 id: BlockId,
5998 row: Option<DisplayRow>,
5999 element: AnyElement,
6000 available_space: Size<AvailableSpace>,
6001 style: BlockStyle,
6002}
6003
6004fn layout_line(
6005 row: DisplayRow,
6006 snapshot: &EditorSnapshot,
6007 style: &EditorStyle,
6008 text_width: Pixels,
6009 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6010 cx: &mut WindowContext,
6011) -> LineWithInvisibles {
6012 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
6013 LineWithInvisibles::from_chunks(
6014 chunks,
6015 &style,
6016 MAX_LINE_LEN,
6017 1,
6018 snapshot.mode,
6019 text_width,
6020 is_row_soft_wrapped,
6021 cx,
6022 )
6023 .pop()
6024 .unwrap()
6025}
6026
6027#[derive(Debug)]
6028pub struct IndentGuideLayout {
6029 origin: gpui::Point<Pixels>,
6030 length: Pixels,
6031 single_indent_width: Pixels,
6032 depth: u32,
6033 active: bool,
6034 settings: IndentGuideSettings,
6035}
6036
6037pub struct CursorLayout {
6038 origin: gpui::Point<Pixels>,
6039 block_width: Pixels,
6040 line_height: Pixels,
6041 color: Hsla,
6042 shape: CursorShape,
6043 block_text: Option<ShapedLine>,
6044 cursor_name: Option<AnyElement>,
6045}
6046
6047#[derive(Debug)]
6048pub struct CursorName {
6049 string: SharedString,
6050 color: Hsla,
6051 is_top_row: bool,
6052}
6053
6054impl CursorLayout {
6055 pub fn new(
6056 origin: gpui::Point<Pixels>,
6057 block_width: Pixels,
6058 line_height: Pixels,
6059 color: Hsla,
6060 shape: CursorShape,
6061 block_text: Option<ShapedLine>,
6062 ) -> CursorLayout {
6063 CursorLayout {
6064 origin,
6065 block_width,
6066 line_height,
6067 color,
6068 shape,
6069 block_text,
6070 cursor_name: None,
6071 }
6072 }
6073
6074 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6075 Bounds {
6076 origin: self.origin + origin,
6077 size: size(self.block_width, self.line_height),
6078 }
6079 }
6080
6081 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6082 match self.shape {
6083 CursorShape::Bar => Bounds {
6084 origin: self.origin + origin,
6085 size: size(px(2.0), self.line_height),
6086 },
6087 CursorShape::Block | CursorShape::Hollow => Bounds {
6088 origin: self.origin + origin,
6089 size: size(self.block_width, self.line_height),
6090 },
6091 CursorShape::Underline => Bounds {
6092 origin: self.origin
6093 + origin
6094 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
6095 size: size(self.block_width, px(2.0)),
6096 },
6097 }
6098 }
6099
6100 pub fn layout(
6101 &mut self,
6102 origin: gpui::Point<Pixels>,
6103 cursor_name: Option<CursorName>,
6104 cx: &mut WindowContext,
6105 ) {
6106 if let Some(cursor_name) = cursor_name {
6107 let bounds = self.bounds(origin);
6108 let text_size = self.line_height / 1.5;
6109
6110 let name_origin = if cursor_name.is_top_row {
6111 point(bounds.right() - px(1.), bounds.top())
6112 } else {
6113 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
6114 };
6115 let mut name_element = div()
6116 .bg(self.color)
6117 .text_size(text_size)
6118 .px_0p5()
6119 .line_height(text_size + px(2.))
6120 .text_color(cursor_name.color)
6121 .child(cursor_name.string.clone())
6122 .into_any_element();
6123
6124 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), cx);
6125
6126 self.cursor_name = Some(name_element);
6127 }
6128 }
6129
6130 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
6131 let bounds = self.bounds(origin);
6132
6133 //Draw background or border quad
6134 let cursor = if matches!(self.shape, CursorShape::Hollow) {
6135 outline(bounds, self.color)
6136 } else {
6137 fill(bounds, self.color)
6138 };
6139
6140 if let Some(name) = &mut self.cursor_name {
6141 name.paint(cx);
6142 }
6143
6144 cx.paint_quad(cursor);
6145
6146 if let Some(block_text) = &self.block_text {
6147 block_text
6148 .paint(self.origin + origin, self.line_height, cx)
6149 .log_err();
6150 }
6151 }
6152
6153 pub fn shape(&self) -> CursorShape {
6154 self.shape
6155 }
6156}
6157
6158#[derive(Debug)]
6159pub struct HighlightedRange {
6160 pub start_y: Pixels,
6161 pub line_height: Pixels,
6162 pub lines: Vec<HighlightedRangeLine>,
6163 pub color: Hsla,
6164 pub corner_radius: Pixels,
6165}
6166
6167#[derive(Debug)]
6168pub struct HighlightedRangeLine {
6169 pub start_x: Pixels,
6170 pub end_x: Pixels,
6171}
6172
6173impl HighlightedRange {
6174 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
6175 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
6176 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
6177 self.paint_lines(
6178 self.start_y + self.line_height,
6179 &self.lines[1..],
6180 bounds,
6181 cx,
6182 );
6183 } else {
6184 self.paint_lines(self.start_y, &self.lines, bounds, cx);
6185 }
6186 }
6187
6188 fn paint_lines(
6189 &self,
6190 start_y: Pixels,
6191 lines: &[HighlightedRangeLine],
6192 _bounds: Bounds<Pixels>,
6193 cx: &mut WindowContext,
6194 ) {
6195 if lines.is_empty() {
6196 return;
6197 }
6198
6199 let first_line = lines.first().unwrap();
6200 let last_line = lines.last().unwrap();
6201
6202 let first_top_left = point(first_line.start_x, start_y);
6203 let first_top_right = point(first_line.end_x, start_y);
6204
6205 let curve_height = point(Pixels::ZERO, self.corner_radius);
6206 let curve_width = |start_x: Pixels, end_x: Pixels| {
6207 let max = (end_x - start_x) / 2.;
6208 let width = if max < self.corner_radius {
6209 max
6210 } else {
6211 self.corner_radius
6212 };
6213
6214 point(width, Pixels::ZERO)
6215 };
6216
6217 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
6218 let mut path = gpui::Path::new(first_top_right - top_curve_width);
6219 path.curve_to(first_top_right + curve_height, first_top_right);
6220
6221 let mut iter = lines.iter().enumerate().peekable();
6222 while let Some((ix, line)) = iter.next() {
6223 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
6224
6225 if let Some((_, next_line)) = iter.peek() {
6226 let next_top_right = point(next_line.end_x, bottom_right.y);
6227
6228 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
6229 Ordering::Equal => {
6230 path.line_to(bottom_right);
6231 }
6232 Ordering::Less => {
6233 let curve_width = curve_width(next_top_right.x, bottom_right.x);
6234 path.line_to(bottom_right - curve_height);
6235 if self.corner_radius > Pixels::ZERO {
6236 path.curve_to(bottom_right - curve_width, bottom_right);
6237 }
6238 path.line_to(next_top_right + curve_width);
6239 if self.corner_radius > Pixels::ZERO {
6240 path.curve_to(next_top_right + curve_height, next_top_right);
6241 }
6242 }
6243 Ordering::Greater => {
6244 let curve_width = curve_width(bottom_right.x, next_top_right.x);
6245 path.line_to(bottom_right - curve_height);
6246 if self.corner_radius > Pixels::ZERO {
6247 path.curve_to(bottom_right + curve_width, bottom_right);
6248 }
6249 path.line_to(next_top_right - curve_width);
6250 if self.corner_radius > Pixels::ZERO {
6251 path.curve_to(next_top_right + curve_height, next_top_right);
6252 }
6253 }
6254 }
6255 } else {
6256 let curve_width = curve_width(line.start_x, line.end_x);
6257 path.line_to(bottom_right - curve_height);
6258 if self.corner_radius > Pixels::ZERO {
6259 path.curve_to(bottom_right - curve_width, bottom_right);
6260 }
6261
6262 let bottom_left = point(line.start_x, bottom_right.y);
6263 path.line_to(bottom_left + curve_width);
6264 if self.corner_radius > Pixels::ZERO {
6265 path.curve_to(bottom_left - curve_height, bottom_left);
6266 }
6267 }
6268 }
6269
6270 if first_line.start_x > last_line.start_x {
6271 let curve_width = curve_width(last_line.start_x, first_line.start_x);
6272 let second_top_left = point(last_line.start_x, start_y + self.line_height);
6273 path.line_to(second_top_left + curve_height);
6274 if self.corner_radius > Pixels::ZERO {
6275 path.curve_to(second_top_left + curve_width, second_top_left);
6276 }
6277 let first_bottom_left = point(first_line.start_x, second_top_left.y);
6278 path.line_to(first_bottom_left - curve_width);
6279 if self.corner_radius > Pixels::ZERO {
6280 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
6281 }
6282 }
6283
6284 path.line_to(first_top_left + curve_height);
6285 if self.corner_radius > Pixels::ZERO {
6286 path.curve_to(first_top_left + top_curve_width, first_top_left);
6287 }
6288 path.line_to(first_top_right - top_curve_width);
6289
6290 cx.paint_path(path, self.color);
6291 }
6292}
6293
6294pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6295 (delta.pow(1.5) / 100.0).into()
6296}
6297
6298fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6299 (delta.pow(1.2) / 300.0).into()
6300}
6301
6302pub fn register_action<T: Action>(
6303 view: &View<Editor>,
6304 cx: &mut WindowContext,
6305 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
6306) {
6307 let view = view.clone();
6308 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
6309 let action = action.downcast_ref().unwrap();
6310 if phase == DispatchPhase::Bubble {
6311 view.update(cx, |editor, cx| {
6312 listener(editor, action, cx);
6313 })
6314 }
6315 })
6316}
6317
6318fn compute_auto_height_layout(
6319 editor: &mut Editor,
6320 max_lines: usize,
6321 max_line_number_width: Pixels,
6322 known_dimensions: Size<Option<Pixels>>,
6323 available_width: AvailableSpace,
6324 cx: &mut ViewContext<Editor>,
6325) -> Option<Size<Pixels>> {
6326 let width = known_dimensions.width.or({
6327 if let AvailableSpace::Definite(available_width) = available_width {
6328 Some(available_width)
6329 } else {
6330 None
6331 }
6332 })?;
6333 if let Some(height) = known_dimensions.height {
6334 return Some(size(width, height));
6335 }
6336
6337 let style = editor.style.as_ref().unwrap();
6338 let font_id = cx.text_system().resolve_font(&style.text.font());
6339 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6340 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6341 let em_width = cx
6342 .text_system()
6343 .typographic_bounds(font_id, font_size, 'm')
6344 .unwrap()
6345 .size
6346 .width;
6347 let em_advance = cx
6348 .text_system()
6349 .advance(font_id, font_size, 'm')
6350 .unwrap()
6351 .width;
6352
6353 let mut snapshot = editor.snapshot(cx);
6354 let gutter_dimensions = snapshot.gutter_dimensions(
6355 font_id,
6356 font_size,
6357 em_width,
6358 em_advance,
6359 max_line_number_width,
6360 cx,
6361 );
6362
6363 editor.gutter_dimensions = gutter_dimensions;
6364 let text_width = width - gutter_dimensions.width;
6365 let overscroll = size(em_width, px(0.));
6366
6367 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
6368 if editor.set_wrap_width(Some(editor_width), cx) {
6369 snapshot = editor.snapshot(cx);
6370 }
6371
6372 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
6373 let height = scroll_height
6374 .max(line_height)
6375 .min(line_height * max_lines as f32);
6376
6377 Some(size(width, height))
6378}
6379
6380#[cfg(test)]
6381mod tests {
6382 use super::*;
6383 use crate::{
6384 display_map::{BlockPlacement, BlockProperties},
6385 editor_tests::{init_test, update_test_language_settings},
6386 Editor, MultiBuffer,
6387 };
6388 use gpui::{TestAppContext, VisualTestContext};
6389 use language::language_settings;
6390 use log::info;
6391 use std::num::NonZeroU32;
6392 use ui::Context;
6393 use util::test::sample_text;
6394
6395 #[gpui::test]
6396 fn test_shape_line_numbers(cx: &mut TestAppContext) {
6397 init_test(cx, |_| {});
6398 let window = cx.add_window(|cx| {
6399 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
6400 Editor::new(EditorMode::Full, buffer, None, true, cx)
6401 });
6402
6403 let editor = window.root(cx).unwrap();
6404 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6405 let element = EditorElement::new(&editor, style);
6406 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
6407
6408 let layouts = cx
6409 .update_window(*window, |_, cx| {
6410 element.layout_line_numbers(
6411 DisplayRow(0)..DisplayRow(6),
6412 (0..6).map(MultiBufferRow).map(Some),
6413 &Default::default(),
6414 Some(DisplayPoint::new(DisplayRow(0), 0)),
6415 &snapshot,
6416 cx,
6417 )
6418 })
6419 .unwrap();
6420 assert_eq!(layouts.len(), 6);
6421
6422 let relative_rows = window
6423 .update(cx, |editor, cx| {
6424 let snapshot = editor.snapshot(cx);
6425 element.calculate_relative_line_numbers(
6426 &snapshot,
6427 &(DisplayRow(0)..DisplayRow(6)),
6428 Some(DisplayRow(3)),
6429 )
6430 })
6431 .unwrap();
6432 assert_eq!(relative_rows[&DisplayRow(0)], 3);
6433 assert_eq!(relative_rows[&DisplayRow(1)], 2);
6434 assert_eq!(relative_rows[&DisplayRow(2)], 1);
6435 // current line has no relative number
6436 assert_eq!(relative_rows[&DisplayRow(4)], 1);
6437 assert_eq!(relative_rows[&DisplayRow(5)], 2);
6438
6439 // works if cursor is before screen
6440 let relative_rows = window
6441 .update(cx, |editor, cx| {
6442 let snapshot = editor.snapshot(cx);
6443 element.calculate_relative_line_numbers(
6444 &snapshot,
6445 &(DisplayRow(3)..DisplayRow(6)),
6446 Some(DisplayRow(1)),
6447 )
6448 })
6449 .unwrap();
6450 assert_eq!(relative_rows.len(), 3);
6451 assert_eq!(relative_rows[&DisplayRow(3)], 2);
6452 assert_eq!(relative_rows[&DisplayRow(4)], 3);
6453 assert_eq!(relative_rows[&DisplayRow(5)], 4);
6454
6455 // works if cursor is after screen
6456 let relative_rows = window
6457 .update(cx, |editor, cx| {
6458 let snapshot = editor.snapshot(cx);
6459 element.calculate_relative_line_numbers(
6460 &snapshot,
6461 &(DisplayRow(0)..DisplayRow(3)),
6462 Some(DisplayRow(6)),
6463 )
6464 })
6465 .unwrap();
6466 assert_eq!(relative_rows.len(), 3);
6467 assert_eq!(relative_rows[&DisplayRow(0)], 5);
6468 assert_eq!(relative_rows[&DisplayRow(1)], 4);
6469 assert_eq!(relative_rows[&DisplayRow(2)], 3);
6470 }
6471
6472 #[gpui::test]
6473 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
6474 init_test(cx, |_| {});
6475
6476 let window = cx.add_window(|cx| {
6477 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
6478 Editor::new(EditorMode::Full, buffer, None, true, cx)
6479 });
6480 let cx = &mut VisualTestContext::from_window(*window, cx);
6481 let editor = window.root(cx).unwrap();
6482 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6483
6484 window
6485 .update(cx, |editor, cx| {
6486 editor.cursor_shape = CursorShape::Block;
6487 editor.change_selections(None, cx, |s| {
6488 s.select_ranges([
6489 Point::new(0, 0)..Point::new(1, 0),
6490 Point::new(3, 2)..Point::new(3, 3),
6491 Point::new(5, 6)..Point::new(6, 0),
6492 ]);
6493 });
6494 })
6495 .unwrap();
6496
6497 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6498 EditorElement::new(&editor, style)
6499 });
6500
6501 assert_eq!(state.selections.len(), 1);
6502 let local_selections = &state.selections[0].1;
6503 assert_eq!(local_selections.len(), 3);
6504 // moves cursor back one line
6505 assert_eq!(
6506 local_selections[0].head,
6507 DisplayPoint::new(DisplayRow(0), 6)
6508 );
6509 assert_eq!(
6510 local_selections[0].range,
6511 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
6512 );
6513
6514 // moves cursor back one column
6515 assert_eq!(
6516 local_selections[1].range,
6517 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
6518 );
6519 assert_eq!(
6520 local_selections[1].head,
6521 DisplayPoint::new(DisplayRow(3), 2)
6522 );
6523
6524 // leaves cursor on the max point
6525 assert_eq!(
6526 local_selections[2].range,
6527 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
6528 );
6529 assert_eq!(
6530 local_selections[2].head,
6531 DisplayPoint::new(DisplayRow(6), 0)
6532 );
6533
6534 // active lines does not include 1 (even though the range of the selection does)
6535 assert_eq!(
6536 state.active_rows.keys().cloned().collect::<Vec<_>>(),
6537 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
6538 );
6539
6540 // multi-buffer support
6541 // in DisplayPoint coordinates, this is what we're dealing with:
6542 // 0: [[file
6543 // 1: header
6544 // 2: section]]
6545 // 3: aaaaaa
6546 // 4: bbbbbb
6547 // 5: cccccc
6548 // 6:
6549 // 7: [[footer]]
6550 // 8: [[header]]
6551 // 9: ffffff
6552 // 10: gggggg
6553 // 11: hhhhhh
6554 // 12:
6555 // 13: [[footer]]
6556 // 14: [[file
6557 // 15: header
6558 // 16: section]]
6559 // 17: bbbbbb
6560 // 18: cccccc
6561 // 19: dddddd
6562 // 20: [[footer]]
6563 let window = cx.add_window(|cx| {
6564 let buffer = MultiBuffer::build_multi(
6565 [
6566 (
6567 &(sample_text(8, 6, 'a') + "\n"),
6568 vec![
6569 Point::new(0, 0)..Point::new(3, 0),
6570 Point::new(4, 0)..Point::new(7, 0),
6571 ],
6572 ),
6573 (
6574 &(sample_text(8, 6, 'a') + "\n"),
6575 vec![Point::new(1, 0)..Point::new(3, 0)],
6576 ),
6577 ],
6578 cx,
6579 );
6580 Editor::new(EditorMode::Full, buffer, None, true, cx)
6581 });
6582 let editor = window.root(cx).unwrap();
6583 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6584 let _state = window.update(cx, |editor, cx| {
6585 editor.cursor_shape = CursorShape::Block;
6586 editor.change_selections(None, cx, |s| {
6587 s.select_display_ranges([
6588 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
6589 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
6590 ]);
6591 });
6592 });
6593
6594 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6595 EditorElement::new(&editor, style)
6596 });
6597 assert_eq!(state.selections.len(), 1);
6598 let local_selections = &state.selections[0].1;
6599 assert_eq!(local_selections.len(), 2);
6600
6601 // moves cursor on excerpt boundary back a line
6602 // and doesn't allow selection to bleed through
6603 assert_eq!(
6604 local_selections[0].range,
6605 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
6606 );
6607 assert_eq!(
6608 local_selections[0].head,
6609 DisplayPoint::new(DisplayRow(6), 0)
6610 );
6611 // moves cursor on buffer boundary back two lines
6612 // and doesn't allow selection to bleed through
6613 assert_eq!(
6614 local_selections[1].range,
6615 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
6616 );
6617 assert_eq!(
6618 local_selections[1].head,
6619 DisplayPoint::new(DisplayRow(12), 0)
6620 );
6621 }
6622
6623 #[gpui::test]
6624 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
6625 init_test(cx, |_| {});
6626
6627 let window = cx.add_window(|cx| {
6628 let buffer = MultiBuffer::build_simple("", cx);
6629 Editor::new(EditorMode::Full, buffer, None, true, cx)
6630 });
6631 let cx = &mut VisualTestContext::from_window(*window, cx);
6632 let editor = window.root(cx).unwrap();
6633 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6634 window
6635 .update(cx, |editor, cx| {
6636 editor.set_placeholder_text("hello", cx);
6637 editor.insert_blocks(
6638 [BlockProperties {
6639 style: BlockStyle::Fixed,
6640 placement: BlockPlacement::Above(Anchor::min()),
6641 height: 3,
6642 render: Arc::new(|cx| div().h(3. * cx.line_height()).into_any()),
6643 priority: 0,
6644 }],
6645 None,
6646 cx,
6647 );
6648
6649 // Blur the editor so that it displays placeholder text.
6650 cx.blur();
6651 })
6652 .unwrap();
6653
6654 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6655 EditorElement::new(&editor, style)
6656 });
6657 assert_eq!(state.position_map.line_layouts.len(), 4);
6658 assert_eq!(
6659 state
6660 .line_numbers
6661 .iter()
6662 .map(Option::is_some)
6663 .collect::<Vec<_>>(),
6664 &[false, false, false, true]
6665 );
6666 }
6667
6668 #[gpui::test]
6669 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
6670 const TAB_SIZE: u32 = 4;
6671
6672 let input_text = "\t \t|\t| a b";
6673 let expected_invisibles = vec![
6674 Invisible::Tab {
6675 line_start_offset: 0,
6676 line_end_offset: TAB_SIZE as usize,
6677 },
6678 Invisible::Whitespace {
6679 line_offset: TAB_SIZE as usize,
6680 },
6681 Invisible::Tab {
6682 line_start_offset: TAB_SIZE as usize + 1,
6683 line_end_offset: TAB_SIZE as usize * 2,
6684 },
6685 Invisible::Tab {
6686 line_start_offset: TAB_SIZE as usize * 2 + 1,
6687 line_end_offset: TAB_SIZE as usize * 3,
6688 },
6689 Invisible::Whitespace {
6690 line_offset: TAB_SIZE as usize * 3 + 1,
6691 },
6692 Invisible::Whitespace {
6693 line_offset: TAB_SIZE as usize * 3 + 3,
6694 },
6695 ];
6696 assert_eq!(
6697 expected_invisibles.len(),
6698 input_text
6699 .chars()
6700 .filter(|initial_char| initial_char.is_whitespace())
6701 .count(),
6702 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
6703 );
6704
6705 for show_line_numbers in [true, false] {
6706 init_test(cx, |s| {
6707 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
6708 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
6709 });
6710
6711 let actual_invisibles = collect_invisibles_from_new_editor(
6712 cx,
6713 EditorMode::Full,
6714 input_text,
6715 px(500.0),
6716 show_line_numbers,
6717 );
6718
6719 assert_eq!(expected_invisibles, actual_invisibles);
6720 }
6721 }
6722
6723 #[gpui::test]
6724 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
6725 init_test(cx, |s| {
6726 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
6727 s.defaults.tab_size = NonZeroU32::new(4);
6728 });
6729
6730 for editor_mode_without_invisibles in [
6731 EditorMode::SingleLine { auto_width: false },
6732 EditorMode::AutoHeight { max_lines: 100 },
6733 ] {
6734 for show_line_numbers in [true, false] {
6735 let invisibles = collect_invisibles_from_new_editor(
6736 cx,
6737 editor_mode_without_invisibles,
6738 "\t\t\t| | a b",
6739 px(500.0),
6740 show_line_numbers,
6741 );
6742 assert!(invisibles.is_empty(),
6743 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
6744 }
6745 }
6746 }
6747
6748 #[gpui::test]
6749 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
6750 let tab_size = 4;
6751 let input_text = "a\tbcd ".repeat(9);
6752 let repeated_invisibles = [
6753 Invisible::Tab {
6754 line_start_offset: 1,
6755 line_end_offset: tab_size as usize,
6756 },
6757 Invisible::Whitespace {
6758 line_offset: tab_size as usize + 3,
6759 },
6760 Invisible::Whitespace {
6761 line_offset: tab_size as usize + 4,
6762 },
6763 Invisible::Whitespace {
6764 line_offset: tab_size as usize + 5,
6765 },
6766 Invisible::Whitespace {
6767 line_offset: tab_size as usize + 6,
6768 },
6769 Invisible::Whitespace {
6770 line_offset: tab_size as usize + 7,
6771 },
6772 ];
6773 let expected_invisibles = std::iter::once(repeated_invisibles)
6774 .cycle()
6775 .take(9)
6776 .flatten()
6777 .collect::<Vec<_>>();
6778 assert_eq!(
6779 expected_invisibles.len(),
6780 input_text
6781 .chars()
6782 .filter(|initial_char| initial_char.is_whitespace())
6783 .count(),
6784 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
6785 );
6786 info!("Expected invisibles: {expected_invisibles:?}");
6787
6788 init_test(cx, |_| {});
6789
6790 // Put the same string with repeating whitespace pattern into editors of various size,
6791 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
6792 let resize_step = 10.0;
6793 let mut editor_width = 200.0;
6794 while editor_width <= 1000.0 {
6795 for show_line_numbers in [true, false] {
6796 update_test_language_settings(cx, |s| {
6797 s.defaults.tab_size = NonZeroU32::new(tab_size);
6798 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
6799 s.defaults.preferred_line_length = Some(editor_width as u32);
6800 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
6801 });
6802
6803 let actual_invisibles = collect_invisibles_from_new_editor(
6804 cx,
6805 EditorMode::Full,
6806 &input_text,
6807 px(editor_width),
6808 show_line_numbers,
6809 );
6810
6811 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
6812 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
6813 let mut i = 0;
6814 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
6815 i = actual_index;
6816 match expected_invisibles.get(i) {
6817 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
6818 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
6819 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
6820 _ => {
6821 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
6822 }
6823 },
6824 None => {
6825 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
6826 }
6827 }
6828 }
6829 let missing_expected_invisibles = &expected_invisibles[i + 1..];
6830 assert!(
6831 missing_expected_invisibles.is_empty(),
6832 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
6833 );
6834
6835 editor_width += resize_step;
6836 }
6837 }
6838 }
6839
6840 fn collect_invisibles_from_new_editor(
6841 cx: &mut TestAppContext,
6842 editor_mode: EditorMode,
6843 input_text: &str,
6844 editor_width: Pixels,
6845 show_line_numbers: bool,
6846 ) -> Vec<Invisible> {
6847 info!(
6848 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
6849 editor_width.0
6850 );
6851 let window = cx.add_window(|cx| {
6852 let buffer = MultiBuffer::build_simple(input_text, cx);
6853 Editor::new(editor_mode, buffer, None, true, cx)
6854 });
6855 let cx = &mut VisualTestContext::from_window(*window, cx);
6856 let editor = window.root(cx).unwrap();
6857
6858 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6859 window
6860 .update(cx, |editor, cx| {
6861 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
6862 editor.set_wrap_width(Some(editor_width), cx);
6863 editor.set_show_line_numbers(show_line_numbers, cx);
6864 })
6865 .unwrap();
6866 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6867 EditorElement::new(&editor, style)
6868 });
6869 state
6870 .position_map
6871 .line_layouts
6872 .iter()
6873 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
6874 .cloned()
6875 .collect()
6876 }
6877}