1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::CodeActionsMenu,
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ShowScrollbar,
10 },
11 git::blame::{CommitDetails, GitBlame},
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 hunk_diff::{diff_hunk_to_display, DisplayDiffHunk},
16 hunk_status,
17 items::BufferSearchHighlights,
18 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
19 scroll::scroll_amount::ScrollAmount,
20 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
21 DocumentHighlightRead, DocumentHighlightWrite, Editor, EditorMode, EditorSettings,
22 EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GutterDimensions, HalfPageDown,
23 HalfPageUp, HandleInput, HoveredCursor, HoveredHunk, InlineCompletion, JumpData, LineDown,
24 LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, Selection,
25 SoftWrap, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
26 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
27};
28use client::ParticipantIndex;
29use collections::{BTreeMap, HashMap, HashSet};
30use file_icons::FileIcons;
31use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
32use gpui::{
33 anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
34 transparent_black, Action, AnyElement, AvailableSpace, Bounds, ClickEvent, ClipboardItem,
35 ContentMask, Corner, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler,
36 Entity, FontId, GlobalElementId, HighlightStyle, Hitbox, Hsla, InteractiveElement, IntoElement,
37 Length, ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent,
38 PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString,
39 Size, StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
40 View, ViewContext, WeakView, WindowContext,
41};
42use itertools::Itertools;
43use language::{
44 language_settings::{
45 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
46 ShowWhitespaceSetting,
47 },
48 ChunkRendererContext,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, AnchorRangeExt, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint,
53 MultiBufferRow, MultiBufferSnapshot, ToOffset,
54};
55use project::{
56 project_settings::{GitGutterSetting, ProjectSettings},
57 ProjectPath,
58};
59use settings::Settings;
60use smallvec::{smallvec, SmallVec};
61use std::{
62 any::TypeId,
63 borrow::Cow,
64 cmp::{self, Ordering},
65 fmt::{self, Write},
66 iter, mem,
67 ops::{Deref, Range},
68 rc::Rc,
69 sync::Arc,
70};
71use sum_tree::Bias;
72use theme::{ActiveTheme, Appearance, PlayerColor};
73use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
74use ui::{prelude::*, POPOVER_Y_PADDING};
75use unicode_segmentation::UnicodeSegmentation;
76use util::RangeExt;
77use util::ResultExt;
78use workspace::{item::Item, Workspace};
79
80struct SelectionLayout {
81 head: DisplayPoint,
82 cursor_shape: CursorShape,
83 is_newest: bool,
84 is_local: bool,
85 range: Range<DisplayPoint>,
86 active_rows: Range<DisplayRow>,
87 user_name: Option<SharedString>,
88}
89
90impl SelectionLayout {
91 fn new<T: ToPoint + ToDisplayPoint + Clone>(
92 selection: Selection<T>,
93 line_mode: bool,
94 cursor_shape: CursorShape,
95 map: &DisplaySnapshot,
96 is_newest: bool,
97 is_local: bool,
98 user_name: Option<SharedString>,
99 ) -> Self {
100 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
101 let display_selection = point_selection.map(|p| p.to_display_point(map));
102 let mut range = display_selection.range();
103 let mut head = display_selection.head();
104 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
105 ..map.next_line_boundary(point_selection.end).1.row();
106
107 // vim visual line mode
108 if line_mode {
109 let point_range = map.expand_to_line(point_selection.range());
110 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
111 }
112
113 // any vim visual mode (including line mode)
114 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
115 && !range.is_empty()
116 && !selection.reversed
117 {
118 if head.column() > 0 {
119 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
120 } else if head.row().0 > 0 && head != map.max_point() {
121 head = map.clip_point(
122 DisplayPoint::new(
123 head.row().previous_row(),
124 map.line_len(head.row().previous_row()),
125 ),
126 Bias::Left,
127 );
128 // updating range.end is a no-op unless you're cursor is
129 // on the newline containing a multi-buffer divider
130 // in which case the clip_point may have moved the head up
131 // an additional row.
132 range.end = DisplayPoint::new(head.row().next_row(), 0);
133 active_rows.end = head.row();
134 }
135 }
136
137 Self {
138 head,
139 cursor_shape,
140 is_newest,
141 is_local,
142 range,
143 active_rows,
144 user_name,
145 }
146 }
147}
148
149pub struct EditorElement {
150 editor: View<Editor>,
151 style: EditorStyle,
152}
153
154type DisplayRowDelta = u32;
155
156impl EditorElement {
157 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(13.);
158
159 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
160 Self {
161 editor: editor.clone(),
162 style,
163 }
164 }
165
166 fn register_actions(&self, cx: &mut WindowContext) {
167 let view = &self.editor;
168 view.update(cx, |editor, cx| {
169 for action in editor.editor_actions.borrow().values() {
170 (action)(cx)
171 }
172 });
173
174 crate::rust_analyzer_ext::apply_related_actions(view, cx);
175 crate::clangd_ext::apply_related_actions(view, cx);
176 register_action(view, cx, Editor::open_context_menu);
177 register_action(view, cx, Editor::move_left);
178 register_action(view, cx, Editor::move_right);
179 register_action(view, cx, Editor::move_down);
180 register_action(view, cx, Editor::move_down_by_lines);
181 register_action(view, cx, Editor::select_down_by_lines);
182 register_action(view, cx, Editor::move_up);
183 register_action(view, cx, Editor::move_up_by_lines);
184 register_action(view, cx, Editor::select_up_by_lines);
185 register_action(view, cx, Editor::select_page_down);
186 register_action(view, cx, Editor::select_page_up);
187 register_action(view, cx, Editor::cancel);
188 register_action(view, cx, Editor::newline);
189 register_action(view, cx, Editor::newline_above);
190 register_action(view, cx, Editor::newline_below);
191 register_action(view, cx, Editor::backspace);
192 register_action(view, cx, Editor::delete);
193 register_action(view, cx, Editor::tab);
194 register_action(view, cx, Editor::tab_prev);
195 register_action(view, cx, Editor::indent);
196 register_action(view, cx, Editor::outdent);
197 register_action(view, cx, Editor::autoindent);
198 register_action(view, cx, Editor::delete_line);
199 register_action(view, cx, Editor::join_lines);
200 register_action(view, cx, Editor::sort_lines_case_sensitive);
201 register_action(view, cx, Editor::sort_lines_case_insensitive);
202 register_action(view, cx, Editor::reverse_lines);
203 register_action(view, cx, Editor::shuffle_lines);
204 register_action(view, cx, Editor::convert_to_upper_case);
205 register_action(view, cx, Editor::convert_to_lower_case);
206 register_action(view, cx, Editor::convert_to_title_case);
207 register_action(view, cx, Editor::convert_to_snake_case);
208 register_action(view, cx, Editor::convert_to_kebab_case);
209 register_action(view, cx, Editor::convert_to_upper_camel_case);
210 register_action(view, cx, Editor::convert_to_lower_camel_case);
211 register_action(view, cx, Editor::convert_to_opposite_case);
212 register_action(view, cx, Editor::delete_to_previous_word_start);
213 register_action(view, cx, Editor::delete_to_previous_subword_start);
214 register_action(view, cx, Editor::delete_to_next_word_end);
215 register_action(view, cx, Editor::delete_to_next_subword_end);
216 register_action(view, cx, Editor::delete_to_beginning_of_line);
217 register_action(view, cx, Editor::delete_to_end_of_line);
218 register_action(view, cx, Editor::cut_to_end_of_line);
219 register_action(view, cx, Editor::duplicate_line_up);
220 register_action(view, cx, Editor::duplicate_line_down);
221 register_action(view, cx, Editor::duplicate_selection);
222 register_action(view, cx, Editor::move_line_up);
223 register_action(view, cx, Editor::move_line_down);
224 register_action(view, cx, Editor::transpose);
225 register_action(view, cx, Editor::rewrap);
226 register_action(view, cx, Editor::cut);
227 register_action(view, cx, Editor::kill_ring_cut);
228 register_action(view, cx, Editor::kill_ring_yank);
229 register_action(view, cx, Editor::copy);
230 register_action(view, cx, Editor::paste);
231 register_action(view, cx, Editor::undo);
232 register_action(view, cx, Editor::redo);
233 register_action(view, cx, Editor::move_page_up);
234 register_action(view, cx, Editor::move_page_down);
235 register_action(view, cx, Editor::next_screen);
236 register_action(view, cx, Editor::scroll_cursor_top);
237 register_action(view, cx, Editor::scroll_cursor_center);
238 register_action(view, cx, Editor::scroll_cursor_bottom);
239 register_action(view, cx, Editor::scroll_cursor_center_top_bottom);
240 register_action(view, cx, |editor, _: &LineDown, cx| {
241 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
242 });
243 register_action(view, cx, |editor, _: &LineUp, cx| {
244 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
245 });
246 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
247 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
248 });
249 register_action(view, cx, |editor, HandleInput(text): &HandleInput, cx| {
250 if text.is_empty() {
251 return;
252 }
253 editor.handle_input(text, cx);
254 });
255 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
256 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
257 });
258 register_action(view, cx, |editor, _: &PageDown, cx| {
259 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
260 });
261 register_action(view, cx, |editor, _: &PageUp, cx| {
262 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
263 });
264 register_action(view, cx, Editor::move_to_previous_word_start);
265 register_action(view, cx, Editor::move_to_previous_subword_start);
266 register_action(view, cx, Editor::move_to_next_word_end);
267 register_action(view, cx, Editor::move_to_next_subword_end);
268 register_action(view, cx, Editor::move_to_beginning_of_line);
269 register_action(view, cx, Editor::move_to_end_of_line);
270 register_action(view, cx, Editor::move_to_start_of_paragraph);
271 register_action(view, cx, Editor::move_to_end_of_paragraph);
272 register_action(view, cx, Editor::move_to_beginning);
273 register_action(view, cx, Editor::move_to_end);
274 register_action(view, cx, Editor::select_up);
275 register_action(view, cx, Editor::select_down);
276 register_action(view, cx, Editor::select_left);
277 register_action(view, cx, Editor::select_right);
278 register_action(view, cx, Editor::select_to_previous_word_start);
279 register_action(view, cx, Editor::select_to_previous_subword_start);
280 register_action(view, cx, Editor::select_to_next_word_end);
281 register_action(view, cx, Editor::select_to_next_subword_end);
282 register_action(view, cx, Editor::select_to_beginning_of_line);
283 register_action(view, cx, Editor::select_to_end_of_line);
284 register_action(view, cx, Editor::select_to_start_of_paragraph);
285 register_action(view, cx, Editor::select_to_end_of_paragraph);
286 register_action(view, cx, Editor::select_to_beginning);
287 register_action(view, cx, Editor::select_to_end);
288 register_action(view, cx, Editor::select_all);
289 register_action(view, cx, |editor, action, cx| {
290 editor.select_all_matches(action, cx).log_err();
291 });
292 register_action(view, cx, Editor::select_line);
293 register_action(view, cx, Editor::split_selection_into_lines);
294 register_action(view, cx, Editor::add_selection_above);
295 register_action(view, cx, Editor::add_selection_below);
296 register_action(view, cx, |editor, action, cx| {
297 editor.select_next(action, cx).log_err();
298 });
299 register_action(view, cx, |editor, action, cx| {
300 editor.select_previous(action, cx).log_err();
301 });
302 register_action(view, cx, Editor::toggle_comments);
303 register_action(view, cx, Editor::select_larger_syntax_node);
304 register_action(view, cx, Editor::select_smaller_syntax_node);
305 register_action(view, cx, Editor::select_enclosing_symbol);
306 register_action(view, cx, Editor::move_to_enclosing_bracket);
307 register_action(view, cx, Editor::undo_selection);
308 register_action(view, cx, Editor::redo_selection);
309 if !view.read(cx).is_singleton(cx) {
310 register_action(view, cx, Editor::expand_excerpts);
311 register_action(view, cx, Editor::expand_excerpts_up);
312 register_action(view, cx, Editor::expand_excerpts_down);
313 }
314 register_action(view, cx, Editor::go_to_diagnostic);
315 register_action(view, cx, Editor::go_to_prev_diagnostic);
316 register_action(view, cx, Editor::go_to_next_hunk);
317 register_action(view, cx, Editor::go_to_prev_hunk);
318 register_action(view, cx, |editor, a, cx| {
319 editor.go_to_definition(a, cx).detach_and_log_err(cx);
320 });
321 register_action(view, cx, |editor, a, cx| {
322 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
323 });
324 register_action(view, cx, |editor, a, cx| {
325 editor.go_to_declaration(a, cx).detach_and_log_err(cx);
326 });
327 register_action(view, cx, |editor, a, cx| {
328 editor.go_to_declaration_split(a, cx).detach_and_log_err(cx);
329 });
330 register_action(view, cx, |editor, a, cx| {
331 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
332 });
333 register_action(view, cx, |editor, a, cx| {
334 editor
335 .go_to_implementation_split(a, cx)
336 .detach_and_log_err(cx);
337 });
338 register_action(view, cx, |editor, a, cx| {
339 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
340 });
341 register_action(view, cx, |editor, a, cx| {
342 editor
343 .go_to_type_definition_split(a, cx)
344 .detach_and_log_err(cx);
345 });
346 register_action(view, cx, Editor::open_url);
347 register_action(view, cx, Editor::open_file);
348 register_action(view, cx, Editor::fold);
349 register_action(view, cx, Editor::fold_at_level);
350 register_action(view, cx, Editor::fold_all);
351 register_action(view, cx, Editor::fold_function_bodies);
352 register_action(view, cx, Editor::fold_at);
353 register_action(view, cx, Editor::fold_recursive);
354 register_action(view, cx, Editor::toggle_fold);
355 register_action(view, cx, Editor::toggle_fold_recursive);
356 register_action(view, cx, Editor::unfold_lines);
357 register_action(view, cx, Editor::unfold_recursive);
358 register_action(view, cx, Editor::unfold_all);
359 register_action(view, cx, Editor::unfold_at);
360 register_action(view, cx, Editor::fold_selected_ranges);
361 register_action(view, cx, Editor::show_completions);
362 register_action(view, cx, Editor::toggle_code_actions);
363 register_action(view, cx, Editor::open_excerpts);
364 register_action(view, cx, Editor::open_excerpts_in_split);
365 register_action(view, cx, Editor::open_proposed_changes_editor);
366 register_action(view, cx, Editor::toggle_soft_wrap);
367 register_action(view, cx, Editor::toggle_tab_bar);
368 register_action(view, cx, Editor::toggle_line_numbers);
369 register_action(view, cx, Editor::toggle_relative_line_numbers);
370 register_action(view, cx, Editor::toggle_indent_guides);
371 register_action(view, cx, Editor::toggle_inlay_hints);
372 register_action(view, cx, Editor::toggle_inline_completions);
373 register_action(view, cx, hover_popover::hover);
374 register_action(view, cx, Editor::reveal_in_finder);
375 register_action(view, cx, Editor::copy_path);
376 register_action(view, cx, Editor::copy_relative_path);
377 register_action(view, cx, Editor::copy_highlight_json);
378 register_action(view, cx, Editor::copy_permalink_to_line);
379 register_action(view, cx, Editor::open_permalink_to_line);
380 register_action(view, cx, Editor::copy_file_location);
381 register_action(view, cx, Editor::toggle_git_blame);
382 register_action(view, cx, Editor::toggle_git_blame_inline);
383 register_action(view, cx, Editor::toggle_hunk_diff);
384 register_action(view, cx, Editor::expand_all_hunk_diffs);
385 register_action(view, cx, |editor, action, cx| {
386 if let Some(task) = editor.format(action, cx) {
387 task.detach_and_log_err(cx);
388 } else {
389 cx.propagate();
390 }
391 });
392 register_action(view, cx, |editor, action, cx| {
393 if let Some(task) = editor.format_selections(action, cx) {
394 task.detach_and_log_err(cx);
395 } else {
396 cx.propagate();
397 }
398 });
399 register_action(view, cx, Editor::restart_language_server);
400 register_action(view, cx, Editor::cancel_language_server_work);
401 register_action(view, cx, Editor::show_character_palette);
402 register_action(view, cx, |editor, action, cx| {
403 if let Some(task) = editor.confirm_completion(action, cx) {
404 task.detach_and_log_err(cx);
405 } else {
406 cx.propagate();
407 }
408 });
409 register_action(view, cx, |editor, action, cx| {
410 if let Some(task) = editor.compose_completion(action, cx) {
411 task.detach_and_log_err(cx);
412 } else {
413 cx.propagate();
414 }
415 });
416 register_action(view, cx, |editor, action, cx| {
417 if let Some(task) = editor.confirm_code_action(action, cx) {
418 task.detach_and_log_err(cx);
419 } else {
420 cx.propagate();
421 }
422 });
423 register_action(view, cx, |editor, action, cx| {
424 if let Some(task) = editor.rename(action, cx) {
425 task.detach_and_log_err(cx);
426 } else {
427 cx.propagate();
428 }
429 });
430 register_action(view, cx, |editor, action, cx| {
431 if let Some(task) = editor.confirm_rename(action, cx) {
432 task.detach_and_log_err(cx);
433 } else {
434 cx.propagate();
435 }
436 });
437 register_action(view, cx, |editor, action, cx| {
438 if let Some(task) = editor.find_all_references(action, cx) {
439 task.detach_and_log_err(cx);
440 } else {
441 cx.propagate();
442 }
443 });
444 register_action(view, cx, Editor::show_signature_help);
445 register_action(view, cx, Editor::next_inline_completion);
446 register_action(view, cx, Editor::previous_inline_completion);
447 register_action(view, cx, Editor::show_inline_completion);
448 register_action(view, cx, Editor::context_menu_first);
449 register_action(view, cx, Editor::context_menu_prev);
450 register_action(view, cx, Editor::context_menu_next);
451 register_action(view, cx, Editor::context_menu_last);
452 register_action(view, cx, Editor::display_cursor_names);
453 register_action(view, cx, Editor::unique_lines_case_insensitive);
454 register_action(view, cx, Editor::unique_lines_case_sensitive);
455 register_action(view, cx, Editor::accept_partial_inline_completion);
456 register_action(view, cx, Editor::accept_inline_completion);
457 register_action(view, cx, Editor::revert_file);
458 register_action(view, cx, Editor::revert_selected_hunks);
459 register_action(view, cx, Editor::apply_all_diff_hunks);
460 register_action(view, cx, Editor::apply_selected_diff_hunks);
461 register_action(view, cx, Editor::open_active_item_in_terminal);
462 register_action(view, cx, Editor::reload_file);
463 register_action(view, cx, Editor::spawn_nearest_task);
464 register_action(view, cx, Editor::insert_uuid_v4);
465 register_action(view, cx, Editor::insert_uuid_v7);
466 }
467
468 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
469 let position_map = layout.position_map.clone();
470 cx.on_key_event({
471 let editor = self.editor.clone();
472 let text_hitbox = layout.text_hitbox.clone();
473 move |event: &ModifiersChangedEvent, phase, cx| {
474 if phase != DispatchPhase::Bubble {
475 return;
476 }
477 editor.update(cx, |editor, cx| {
478 if editor.hover_state.focused(cx) {
479 return;
480 }
481 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
482 })
483 }
484 });
485 }
486
487 fn modifiers_changed(
488 editor: &mut Editor,
489 event: &ModifiersChangedEvent,
490 position_map: &PositionMap,
491 text_hitbox: &Hitbox,
492 cx: &mut ViewContext<Editor>,
493 ) {
494 let mouse_position = cx.mouse_position();
495 if !text_hitbox.is_hovered(cx) {
496 return;
497 }
498
499 editor.update_hovered_link(
500 position_map.point_for_position(text_hitbox.bounds, mouse_position),
501 &position_map.snapshot,
502 event.modifiers,
503 cx,
504 )
505 }
506
507 fn mouse_left_down(
508 editor: &mut Editor,
509 event: &MouseDownEvent,
510 hovered_hunk: Option<HoveredHunk>,
511 position_map: &PositionMap,
512 text_hitbox: &Hitbox,
513 gutter_hitbox: &Hitbox,
514 cx: &mut ViewContext<Editor>,
515 ) {
516 if cx.default_prevented() {
517 return;
518 }
519
520 let mut click_count = event.click_count;
521 let mut modifiers = event.modifiers;
522
523 if let Some(hovered_hunk) = hovered_hunk {
524 editor.toggle_hovered_hunk(&hovered_hunk, cx);
525 cx.notify();
526 return;
527 } else if gutter_hitbox.is_hovered(cx) {
528 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
529 } else if !text_hitbox.is_hovered(cx) {
530 return;
531 }
532
533 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
534 match EditorSettings::get_global(cx).double_click_in_multibuffer {
535 DoubleClickInMultibuffer::Select => {
536 // do nothing special on double click, all selection logic is below
537 }
538 DoubleClickInMultibuffer::Open => {
539 if modifiers.alt {
540 // if double click is made with alt, pretend it's a regular double click without opening and alt,
541 // and run the selection logic.
542 modifiers.alt = false;
543 } else {
544 // if double click is made without alt, open the corresponding excerp
545 editor.open_excerpts(&OpenExcerpts, cx);
546 return;
547 }
548 }
549 }
550 }
551
552 let point_for_position =
553 position_map.point_for_position(text_hitbox.bounds, event.position);
554 let position = point_for_position.previous_valid;
555 if modifiers.shift && modifiers.alt {
556 editor.select(
557 SelectPhase::BeginColumnar {
558 position,
559 reset: false,
560 goal_column: point_for_position.exact_unclipped.column(),
561 },
562 cx,
563 );
564 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
565 {
566 editor.select(
567 SelectPhase::Extend {
568 position,
569 click_count,
570 },
571 cx,
572 );
573 } else {
574 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
575 let multi_cursor_modifier = match multi_cursor_setting {
576 MultiCursorModifier::Alt => modifiers.alt,
577 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
578 };
579 editor.select(
580 SelectPhase::Begin {
581 position,
582 add: multi_cursor_modifier,
583 click_count,
584 },
585 cx,
586 );
587 }
588
589 cx.stop_propagation();
590 }
591
592 fn mouse_right_down(
593 editor: &mut Editor,
594 event: &MouseDownEvent,
595 position_map: &PositionMap,
596 text_hitbox: &Hitbox,
597 cx: &mut ViewContext<Editor>,
598 ) {
599 if !text_hitbox.is_hovered(cx) {
600 return;
601 }
602 let point_for_position =
603 position_map.point_for_position(text_hitbox.bounds, event.position);
604 mouse_context_menu::deploy_context_menu(
605 editor,
606 Some(event.position),
607 point_for_position.previous_valid,
608 cx,
609 );
610 cx.stop_propagation();
611 }
612
613 fn mouse_middle_down(
614 editor: &mut Editor,
615 event: &MouseDownEvent,
616 position_map: &PositionMap,
617 text_hitbox: &Hitbox,
618 cx: &mut ViewContext<Editor>,
619 ) {
620 if !text_hitbox.is_hovered(cx) || cx.default_prevented() {
621 return;
622 }
623
624 let point_for_position =
625 position_map.point_for_position(text_hitbox.bounds, event.position);
626 let position = point_for_position.previous_valid;
627
628 editor.select(
629 SelectPhase::BeginColumnar {
630 position,
631 reset: true,
632 goal_column: point_for_position.exact_unclipped.column(),
633 },
634 cx,
635 );
636 }
637
638 fn mouse_up(
639 editor: &mut Editor,
640 event: &MouseUpEvent,
641 position_map: &PositionMap,
642 text_hitbox: &Hitbox,
643 cx: &mut ViewContext<Editor>,
644 ) {
645 let end_selection = editor.has_pending_selection();
646 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
647
648 if end_selection {
649 editor.select(SelectPhase::End, cx);
650 }
651
652 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
653 let multi_cursor_modifier = match multi_cursor_setting {
654 MultiCursorModifier::Alt => event.modifiers.secondary(),
655 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
656 };
657
658 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
659 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
660 editor.handle_click_hovered_link(point, event.modifiers, cx);
661
662 cx.stop_propagation();
663 } else if end_selection && pending_nonempty_selections {
664 cx.stop_propagation();
665 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
666 && event.button == MouseButton::Middle
667 {
668 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
669 return;
670 }
671
672 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
673 if EditorSettings::get_global(cx).middle_click_paste {
674 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
675 let point_for_position =
676 position_map.point_for_position(text_hitbox.bounds, event.position);
677 let position = point_for_position.previous_valid;
678
679 editor.select(
680 SelectPhase::Begin {
681 position,
682 add: false,
683 click_count: 1,
684 },
685 cx,
686 );
687 editor.insert(&text, cx);
688 }
689 cx.stop_propagation()
690 }
691 }
692 }
693
694 fn mouse_dragged(
695 editor: &mut Editor,
696 event: &MouseMoveEvent,
697 position_map: &PositionMap,
698 text_bounds: Bounds<Pixels>,
699 cx: &mut ViewContext<Editor>,
700 ) {
701 if !editor.has_pending_selection() {
702 return;
703 }
704
705 let point_for_position = position_map.point_for_position(text_bounds, event.position);
706 let mut scroll_delta = gpui::Point::<f32>::default();
707 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
708 let top = text_bounds.origin.y + vertical_margin;
709 let bottom = text_bounds.bottom_left().y - vertical_margin;
710 if event.position.y < top {
711 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
712 }
713 if event.position.y > bottom {
714 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
715 }
716
717 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
718 let left = text_bounds.origin.x + horizontal_margin;
719 let right = text_bounds.top_right().x - horizontal_margin;
720 if event.position.x < left {
721 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
722 }
723 if event.position.x > right {
724 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
725 }
726
727 editor.select(
728 SelectPhase::Update {
729 position: point_for_position.previous_valid,
730 goal_column: point_for_position.exact_unclipped.column(),
731 scroll_delta,
732 },
733 cx,
734 );
735 }
736
737 fn mouse_moved(
738 editor: &mut Editor,
739 event: &MouseMoveEvent,
740 position_map: &PositionMap,
741 text_hitbox: &Hitbox,
742 gutter_hitbox: &Hitbox,
743 cx: &mut ViewContext<Editor>,
744 ) {
745 let modifiers = event.modifiers;
746 let gutter_hovered = gutter_hitbox.is_hovered(cx);
747 editor.set_gutter_hovered(gutter_hovered, cx);
748
749 // Don't trigger hover popover if mouse is hovering over context menu
750 if text_hitbox.is_hovered(cx) {
751 let point_for_position =
752 position_map.point_for_position(text_hitbox.bounds, event.position);
753
754 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
755
756 if let Some(point) = point_for_position.as_valid() {
757 let anchor = position_map
758 .snapshot
759 .buffer_snapshot
760 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
761 hover_at(editor, Some(anchor), cx);
762 Self::update_visible_cursor(editor, point, position_map, cx);
763 } else {
764 hover_at(editor, None, cx);
765 }
766 } else {
767 editor.hide_hovered_link(cx);
768 hover_at(editor, None, cx);
769 if gutter_hovered {
770 cx.stop_propagation();
771 }
772 }
773 }
774
775 fn update_visible_cursor(
776 editor: &mut Editor,
777 point: DisplayPoint,
778 position_map: &PositionMap,
779 cx: &mut ViewContext<Editor>,
780 ) {
781 let snapshot = &position_map.snapshot;
782 let Some(hub) = editor.collaboration_hub() else {
783 return;
784 };
785 let start = snapshot.display_snapshot.clip_point(
786 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
787 Bias::Left,
788 );
789 let end = snapshot.display_snapshot.clip_point(
790 DisplayPoint::new(
791 point.row(),
792 (point.column() + 1).min(snapshot.line_len(point.row())),
793 ),
794 Bias::Right,
795 );
796
797 let range = snapshot
798 .buffer_snapshot
799 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
800 ..snapshot
801 .buffer_snapshot
802 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
803
804 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
805 return;
806 };
807 let key = crate::HoveredCursor {
808 replica_id: selection.replica_id,
809 selection_id: selection.selection.id,
810 };
811 editor.hovered_cursors.insert(
812 key.clone(),
813 cx.spawn(|editor, mut cx| async move {
814 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
815 editor
816 .update(&mut cx, |editor, cx| {
817 editor.hovered_cursors.remove(&key);
818 cx.notify();
819 })
820 .ok();
821 }),
822 );
823 cx.notify()
824 }
825
826 #[allow(clippy::too_many_arguments)]
827 fn layout_selections(
828 &self,
829 start_anchor: Anchor,
830 end_anchor: Anchor,
831 local_selections: &[Selection<Point>],
832 snapshot: &EditorSnapshot,
833 start_row: DisplayRow,
834 end_row: DisplayRow,
835 cx: &mut WindowContext,
836 ) -> (
837 Vec<(PlayerColor, Vec<SelectionLayout>)>,
838 BTreeMap<DisplayRow, bool>,
839 Option<DisplayPoint>,
840 ) {
841 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
842 let mut active_rows = BTreeMap::new();
843 let mut newest_selection_head = None;
844 self.editor.update(cx, |editor, cx| {
845 if editor.show_local_selections {
846 let mut layouts = Vec::new();
847 let newest = editor.selections.newest(cx);
848 for selection in local_selections.iter().cloned() {
849 let is_empty = selection.start == selection.end;
850 let is_newest = selection == newest;
851
852 let layout = SelectionLayout::new(
853 selection,
854 editor.selections.line_mode,
855 editor.cursor_shape,
856 &snapshot.display_snapshot,
857 is_newest,
858 editor.leader_peer_id.is_none(),
859 None,
860 );
861 if is_newest {
862 newest_selection_head = Some(layout.head);
863 }
864
865 for row in cmp::max(layout.active_rows.start.0, start_row.0)
866 ..=cmp::min(layout.active_rows.end.0, end_row.0)
867 {
868 let contains_non_empty_selection =
869 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
870 *contains_non_empty_selection |= !is_empty;
871 }
872 layouts.push(layout);
873 }
874
875 let player = if editor.read_only(cx) {
876 cx.theme().players().read_only()
877 } else {
878 self.style.local_player
879 };
880
881 selections.push((player, layouts));
882 }
883
884 if let Some(collaboration_hub) = &editor.collaboration_hub {
885 // When following someone, render the local selections in their color.
886 if let Some(leader_id) = editor.leader_peer_id {
887 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
888 {
889 if let Some(participant_index) = collaboration_hub
890 .user_participant_indices(cx)
891 .get(&collaborator.user_id)
892 {
893 if let Some((local_selection_style, _)) = selections.first_mut() {
894 *local_selection_style = cx
895 .theme()
896 .players()
897 .color_for_participant(participant_index.0);
898 }
899 }
900 }
901 }
902
903 let mut remote_selections = HashMap::default();
904 for selection in snapshot.remote_selections_in_range(
905 &(start_anchor..end_anchor),
906 collaboration_hub.as_ref(),
907 cx,
908 ) {
909 let selection_style =
910 Self::get_participant_color(selection.participant_index, cx);
911
912 // Don't re-render the leader's selections, since the local selections
913 // match theirs.
914 if Some(selection.peer_id) == editor.leader_peer_id {
915 continue;
916 }
917 let key = HoveredCursor {
918 replica_id: selection.replica_id,
919 selection_id: selection.selection.id,
920 };
921
922 let is_shown =
923 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
924
925 remote_selections
926 .entry(selection.replica_id)
927 .or_insert((selection_style, Vec::new()))
928 .1
929 .push(SelectionLayout::new(
930 selection.selection,
931 selection.line_mode,
932 selection.cursor_shape,
933 &snapshot.display_snapshot,
934 false,
935 false,
936 if is_shown { selection.user_name } else { None },
937 ));
938 }
939
940 selections.extend(remote_selections.into_values());
941 } else if !editor.is_focused(cx) && editor.show_cursor_when_unfocused {
942 let player = if editor.read_only(cx) {
943 cx.theme().players().read_only()
944 } else {
945 self.style.local_player
946 };
947 let layouts = snapshot
948 .buffer_snapshot
949 .selections_in_range(&(start_anchor..end_anchor), true)
950 .map(move |(_, line_mode, cursor_shape, selection)| {
951 SelectionLayout::new(
952 selection,
953 line_mode,
954 cursor_shape,
955 &snapshot.display_snapshot,
956 false,
957 false,
958 None,
959 )
960 })
961 .collect::<Vec<_>>();
962 selections.push((player, layouts));
963 }
964 });
965 (selections, active_rows, newest_selection_head)
966 }
967
968 fn collect_cursors(
969 &self,
970 snapshot: &EditorSnapshot,
971 cx: &mut WindowContext,
972 ) -> Vec<(DisplayPoint, Hsla)> {
973 let editor = self.editor.read(cx);
974 let mut cursors = Vec::new();
975 let mut skip_local = false;
976 let mut add_cursor = |anchor: Anchor, color| {
977 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
978 };
979 // Remote cursors
980 if let Some(collaboration_hub) = &editor.collaboration_hub {
981 for remote_selection in snapshot.remote_selections_in_range(
982 &(Anchor::min()..Anchor::max()),
983 collaboration_hub.deref(),
984 cx,
985 ) {
986 let color = Self::get_participant_color(remote_selection.participant_index, cx);
987 add_cursor(remote_selection.selection.head(), color.cursor);
988 if Some(remote_selection.peer_id) == editor.leader_peer_id {
989 skip_local = true;
990 }
991 }
992 }
993 // Local cursors
994 if !skip_local {
995 let color = cx.theme().players().local().cursor;
996 editor.selections.disjoint.iter().for_each(|selection| {
997 add_cursor(selection.head(), color);
998 });
999 if let Some(ref selection) = editor.selections.pending_anchor() {
1000 add_cursor(selection.head(), color);
1001 }
1002 }
1003 cursors
1004 }
1005
1006 #[allow(clippy::too_many_arguments)]
1007 fn layout_visible_cursors(
1008 &self,
1009 snapshot: &EditorSnapshot,
1010 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1011 block_start_rows: &HashSet<DisplayRow>,
1012 visible_display_row_range: Range<DisplayRow>,
1013 line_layouts: &[LineWithInvisibles],
1014 text_hitbox: &Hitbox,
1015 content_origin: gpui::Point<Pixels>,
1016 scroll_position: gpui::Point<f32>,
1017 scroll_pixel_position: gpui::Point<Pixels>,
1018 line_height: Pixels,
1019 em_width: Pixels,
1020 autoscroll_containing_element: bool,
1021 cx: &mut WindowContext,
1022 ) -> Vec<CursorLayout> {
1023 let mut autoscroll_bounds = None;
1024 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1025 let mut cursors = Vec::new();
1026 for (player_color, selections) in selections {
1027 for selection in selections {
1028 let cursor_position = selection.head;
1029
1030 let in_range = visible_display_row_range.contains(&cursor_position.row());
1031 if (selection.is_local && !editor.show_local_cursors(cx))
1032 || !in_range
1033 || block_start_rows.contains(&cursor_position.row())
1034 {
1035 continue;
1036 }
1037
1038 let cursor_row_layout = &line_layouts
1039 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1040 let cursor_column = cursor_position.column() as usize;
1041
1042 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1043 let mut block_width =
1044 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1045 if block_width == Pixels::ZERO {
1046 block_width = em_width;
1047 }
1048 let block_text = if let CursorShape::Block = selection.cursor_shape {
1049 snapshot
1050 .grapheme_at(cursor_position)
1051 .or_else(|| {
1052 if cursor_column == 0 {
1053 snapshot.placeholder_text().and_then(|s| {
1054 s.graphemes(true).next().map(|s| s.to_string().into())
1055 })
1056 } else {
1057 None
1058 }
1059 })
1060 .and_then(|text| {
1061 let len = text.len();
1062
1063 let font = cursor_row_layout
1064 .font_id_for_index(cursor_column)
1065 .and_then(|cursor_font_id| {
1066 cx.text_system().get_font_for_id(cursor_font_id)
1067 })
1068 .unwrap_or(self.style.text.font());
1069
1070 // Invert the text color for the block cursor. Ensure that the text
1071 // color is opaque enough to be visible against the background color.
1072 //
1073 // 0.75 is an arbitrary threshold to determine if the background color is
1074 // opaque enough to use as a text color.
1075 //
1076 // TODO: In the future we should ensure themes have a `text_inverse` color.
1077 let color = if cx.theme().colors().editor_background.a < 0.75 {
1078 match cx.theme().appearance {
1079 Appearance::Dark => Hsla::black(),
1080 Appearance::Light => Hsla::white(),
1081 }
1082 } else {
1083 cx.theme().colors().editor_background
1084 };
1085
1086 cx.text_system()
1087 .shape_line(
1088 text,
1089 cursor_row_layout.font_size,
1090 &[TextRun {
1091 len,
1092 font,
1093 color,
1094 background_color: None,
1095 strikethrough: None,
1096 underline: None,
1097 }],
1098 )
1099 .log_err()
1100 })
1101 } else {
1102 None
1103 };
1104
1105 let x = cursor_character_x - scroll_pixel_position.x;
1106 let y = (cursor_position.row().as_f32()
1107 - scroll_pixel_position.y / line_height)
1108 * line_height;
1109 if selection.is_newest {
1110 editor.pixel_position_of_newest_cursor = Some(point(
1111 text_hitbox.origin.x + x + block_width / 2.,
1112 text_hitbox.origin.y + y + line_height / 2.,
1113 ));
1114
1115 if autoscroll_containing_element {
1116 let top = text_hitbox.origin.y
1117 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1118 * line_height;
1119 let left = text_hitbox.origin.x
1120 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1121 .max(0.)
1122 * em_width;
1123
1124 let bottom = text_hitbox.origin.y
1125 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1126 * line_height;
1127 let right = text_hitbox.origin.x
1128 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1129 * em_width;
1130
1131 autoscroll_bounds =
1132 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1133 }
1134 }
1135
1136 let mut cursor = CursorLayout {
1137 color: player_color.cursor,
1138 block_width,
1139 origin: point(x, y),
1140 line_height,
1141 shape: selection.cursor_shape,
1142 block_text,
1143 cursor_name: None,
1144 };
1145 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1146 string: name,
1147 color: self.style.background,
1148 is_top_row: cursor_position.row().0 == 0,
1149 });
1150 cursor.layout(content_origin, cursor_name, cx);
1151 cursors.push(cursor);
1152 }
1153 }
1154 cursors
1155 });
1156
1157 if let Some(bounds) = autoscroll_bounds {
1158 cx.request_autoscroll(bounds);
1159 }
1160
1161 cursor_layouts
1162 }
1163
1164 fn layout_scrollbar(
1165 &self,
1166 snapshot: &EditorSnapshot,
1167 bounds: Bounds<Pixels>,
1168 scroll_position: gpui::Point<f32>,
1169 rows_per_page: f32,
1170 non_visible_cursors: bool,
1171 cx: &mut WindowContext,
1172 ) -> Option<ScrollbarLayout> {
1173 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1174 let show_scrollbars = match scrollbar_settings.show {
1175 ShowScrollbar::Auto => {
1176 let editor = self.editor.read(cx);
1177 let is_singleton = editor.is_singleton(cx);
1178 // Git
1179 (is_singleton && scrollbar_settings.git_diff && !snapshot.diff_map.is_empty())
1180 ||
1181 // Buffer Search Results
1182 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1183 ||
1184 // Selected Symbol Occurrences
1185 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1186 ||
1187 // Diagnostics
1188 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1189 ||
1190 // Cursors out of sight
1191 non_visible_cursors
1192 ||
1193 // Scrollmanager
1194 editor.scroll_manager.scrollbars_visible()
1195 }
1196 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1197 ShowScrollbar::Always => true,
1198 ShowScrollbar::Never => false,
1199 };
1200 if snapshot.mode != EditorMode::Full {
1201 return None;
1202 }
1203
1204 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1205
1206 // If a drag took place after we started dragging the scrollbar,
1207 // cancel the scrollbar drag.
1208 if cx.has_active_drag() {
1209 self.editor.update(cx, |editor, cx| {
1210 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1211 });
1212 }
1213
1214 let track_bounds = Bounds::from_corners(
1215 point(self.scrollbar_left(&bounds), bounds.origin.y),
1216 point(bounds.bottom_right().x, bounds.bottom_left().y),
1217 );
1218
1219 let settings = EditorSettings::get_global(cx);
1220 let scroll_beyond_last_line: f32 = match settings.scroll_beyond_last_line {
1221 ScrollBeyondLastLine::OnePage => rows_per_page,
1222 ScrollBeyondLastLine::Off => 1.0,
1223 ScrollBeyondLastLine::VerticalScrollMargin => 1.0 + settings.vertical_scroll_margin,
1224 };
1225 let total_rows =
1226 (snapshot.max_point().row().as_f32() + scroll_beyond_last_line).max(rows_per_page);
1227 let height = bounds.size.height;
1228 let px_per_row = height / total_rows;
1229 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1230 let row_height = (height - thumb_height) / (total_rows - rows_per_page).max(0.);
1231
1232 Some(ScrollbarLayout {
1233 hitbox: cx.insert_hitbox(track_bounds, false),
1234 visible_row_range,
1235 row_height,
1236 visible: show_scrollbars,
1237 thumb_height,
1238 })
1239 }
1240
1241 #[allow(clippy::too_many_arguments)]
1242 fn prepaint_crease_toggles(
1243 &self,
1244 crease_toggles: &mut [Option<AnyElement>],
1245 line_height: Pixels,
1246 gutter_dimensions: &GutterDimensions,
1247 gutter_settings: crate::editor_settings::Gutter,
1248 scroll_pixel_position: gpui::Point<Pixels>,
1249 gutter_hitbox: &Hitbox,
1250 cx: &mut WindowContext,
1251 ) {
1252 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1253 if let Some(crease_toggle) = crease_toggle {
1254 debug_assert!(gutter_settings.folds);
1255 let available_space = size(
1256 AvailableSpace::MinContent,
1257 AvailableSpace::Definite(line_height * 0.55),
1258 );
1259 let crease_toggle_size = crease_toggle.layout_as_root(available_space, cx);
1260
1261 let position = point(
1262 gutter_dimensions.width - gutter_dimensions.right_padding,
1263 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1264 );
1265 let centering_offset = point(
1266 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1267 (line_height - crease_toggle_size.height) / 2.,
1268 );
1269 let origin = gutter_hitbox.origin + position + centering_offset;
1270 crease_toggle.prepaint_as_root(origin, available_space, cx);
1271 }
1272 }
1273 }
1274
1275 #[allow(clippy::too_many_arguments)]
1276 fn prepaint_crease_trailers(
1277 &self,
1278 trailers: Vec<Option<AnyElement>>,
1279 lines: &[LineWithInvisibles],
1280 line_height: Pixels,
1281 content_origin: gpui::Point<Pixels>,
1282 scroll_pixel_position: gpui::Point<Pixels>,
1283 em_width: Pixels,
1284 cx: &mut WindowContext,
1285 ) -> Vec<Option<CreaseTrailerLayout>> {
1286 trailers
1287 .into_iter()
1288 .enumerate()
1289 .map(|(ix, element)| {
1290 let mut element = element?;
1291 let available_space = size(
1292 AvailableSpace::MinContent,
1293 AvailableSpace::Definite(line_height),
1294 );
1295 let size = element.layout_as_root(available_space, cx);
1296
1297 let line = &lines[ix];
1298 let padding = if line.width == Pixels::ZERO {
1299 Pixels::ZERO
1300 } else {
1301 4. * em_width
1302 };
1303 let position = point(
1304 scroll_pixel_position.x + line.width + padding,
1305 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1306 );
1307 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1308 let origin = content_origin + position + centering_offset;
1309 element.prepaint_as_root(origin, available_space, cx);
1310 Some(CreaseTrailerLayout {
1311 element,
1312 bounds: Bounds::new(origin, size),
1313 })
1314 })
1315 .collect()
1316 }
1317
1318 // Folds contained in a hunk are ignored apart from shrinking visual size
1319 // If a fold contains any hunks then that fold line is marked as modified
1320 fn layout_gutter_git_hunks(
1321 &self,
1322 line_height: Pixels,
1323 gutter_hitbox: &Hitbox,
1324 display_rows: Range<DisplayRow>,
1325 anchor_range: Range<Anchor>,
1326 snapshot: &EditorSnapshot,
1327 cx: &mut WindowContext,
1328 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1329 let buffer_snapshot = &snapshot.buffer_snapshot;
1330 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1331 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1332
1333 let git_gutter_setting = ProjectSettings::get_global(cx)
1334 .git
1335 .git_gutter
1336 .unwrap_or_default();
1337
1338 self.editor.update(cx, |editor, cx| {
1339 let expanded_hunks = &editor.diff_map.hunks;
1340 let expanded_hunks_start_ix = expanded_hunks
1341 .binary_search_by(|hunk| {
1342 hunk.hunk_range
1343 .end
1344 .cmp(&anchor_range.start, &buffer_snapshot)
1345 .then(Ordering::Less)
1346 })
1347 .unwrap_err();
1348 let mut expanded_hunks = expanded_hunks[expanded_hunks_start_ix..].iter().peekable();
1349
1350 let mut display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)> = editor
1351 .diff_map
1352 .snapshot
1353 .diff_hunks_in_range(buffer_start..buffer_end, &buffer_snapshot)
1354 .filter_map(|hunk| {
1355 let display_hunk = diff_hunk_to_display(&hunk, snapshot);
1356
1357 if let DisplayDiffHunk::Unfolded {
1358 multi_buffer_range,
1359 status,
1360 ..
1361 } = &display_hunk
1362 {
1363 let mut is_expanded = false;
1364 while let Some(expanded_hunk) = expanded_hunks.peek() {
1365 match expanded_hunk
1366 .hunk_range
1367 .start
1368 .cmp(&multi_buffer_range.start, &buffer_snapshot)
1369 {
1370 Ordering::Less => {
1371 expanded_hunks.next();
1372 }
1373 Ordering::Equal => {
1374 is_expanded = true;
1375 break;
1376 }
1377 Ordering::Greater => {
1378 break;
1379 }
1380 }
1381 }
1382 match status {
1383 DiffHunkStatus::Added => {}
1384 DiffHunkStatus::Modified => {}
1385 DiffHunkStatus::Removed => {
1386 if is_expanded {
1387 return None;
1388 }
1389 }
1390 }
1391 }
1392
1393 Some(display_hunk)
1394 })
1395 .dedup()
1396 .map(|hunk| (hunk, None))
1397 .collect();
1398
1399 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1400 for (hunk, hitbox) in &mut display_hunks {
1401 if let DisplayDiffHunk::Unfolded { .. } = hunk {
1402 let hunk_bounds = Self::diff_hunk_bounds(
1403 snapshot,
1404 line_height,
1405 gutter_hitbox.bounds,
1406 &hunk,
1407 );
1408 *hitbox = Some(cx.insert_hitbox(hunk_bounds, true));
1409 };
1410 }
1411 }
1412
1413 display_hunks
1414 })
1415 }
1416
1417 #[allow(clippy::too_many_arguments)]
1418 fn layout_inline_blame(
1419 &self,
1420 display_row: DisplayRow,
1421 display_snapshot: &DisplaySnapshot,
1422 line_layout: &LineWithInvisibles,
1423 crease_trailer: Option<&CreaseTrailerLayout>,
1424 em_width: Pixels,
1425 content_origin: gpui::Point<Pixels>,
1426 scroll_pixel_position: gpui::Point<Pixels>,
1427 line_height: Pixels,
1428 cx: &mut WindowContext,
1429 ) -> Option<AnyElement> {
1430 if !self
1431 .editor
1432 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1433 {
1434 return None;
1435 }
1436
1437 let workspace = self
1438 .editor
1439 .read(cx)
1440 .workspace
1441 .as_ref()
1442 .map(|(w, _)| w.clone());
1443
1444 let display_point = DisplayPoint::new(display_row, 0);
1445 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1446
1447 let blame = self.editor.read(cx).blame.clone()?;
1448 let blame_entry = blame
1449 .update(cx, |blame, cx| {
1450 blame.blame_for_rows([Some(buffer_row)], cx).next()
1451 })
1452 .flatten()?;
1453
1454 let mut element =
1455 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1456
1457 let start_y = content_origin.y
1458 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1459
1460 let start_x = {
1461 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1462
1463 let line_end = if let Some(crease_trailer) = crease_trailer {
1464 crease_trailer.bounds.right()
1465 } else {
1466 content_origin.x - scroll_pixel_position.x + line_layout.width
1467 };
1468 let padded_line_end = line_end + em_width * INLINE_BLAME_PADDING_EM_WIDTHS;
1469
1470 let min_column_in_pixels = ProjectSettings::get_global(cx)
1471 .git
1472 .inline_blame
1473 .and_then(|settings| settings.min_column)
1474 .map(|col| self.column_pixels(col as usize, cx))
1475 .unwrap_or(px(0.));
1476 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1477
1478 cmp::max(padded_line_end, min_start)
1479 };
1480
1481 let absolute_offset = point(start_x, start_y);
1482 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), cx);
1483
1484 Some(element)
1485 }
1486
1487 #[allow(clippy::too_many_arguments)]
1488 fn layout_blame_entries(
1489 &self,
1490 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1491 em_width: Pixels,
1492 scroll_position: gpui::Point<f32>,
1493 line_height: Pixels,
1494 gutter_hitbox: &Hitbox,
1495 max_width: Option<Pixels>,
1496 cx: &mut WindowContext,
1497 ) -> Option<Vec<AnyElement>> {
1498 if !self
1499 .editor
1500 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1501 {
1502 return None;
1503 }
1504
1505 let blame = self.editor.read(cx).blame.clone()?;
1506 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1507 blame.blame_for_rows(buffer_rows, cx).collect()
1508 });
1509
1510 let width = if let Some(max_width) = max_width {
1511 AvailableSpace::Definite(max_width)
1512 } else {
1513 AvailableSpace::MaxContent
1514 };
1515 let scroll_top = scroll_position.y * line_height;
1516 let start_x = em_width;
1517
1518 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1519
1520 let shaped_lines = blamed_rows
1521 .into_iter()
1522 .enumerate()
1523 .flat_map(|(ix, blame_entry)| {
1524 if let Some(blame_entry) = blame_entry {
1525 let mut element = render_blame_entry(
1526 ix,
1527 &blame,
1528 blame_entry,
1529 &self.style,
1530 &mut last_used_color,
1531 self.editor.clone(),
1532 cx,
1533 );
1534
1535 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1536 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1537
1538 element.prepaint_as_root(
1539 absolute_offset,
1540 size(width, AvailableSpace::MinContent),
1541 cx,
1542 );
1543
1544 Some(element)
1545 } else {
1546 None
1547 }
1548 })
1549 .collect();
1550
1551 Some(shaped_lines)
1552 }
1553
1554 #[allow(clippy::too_many_arguments)]
1555 fn layout_indent_guides(
1556 &self,
1557 content_origin: gpui::Point<Pixels>,
1558 text_origin: gpui::Point<Pixels>,
1559 visible_buffer_range: Range<MultiBufferRow>,
1560 scroll_pixel_position: gpui::Point<Pixels>,
1561 line_height: Pixels,
1562 snapshot: &DisplaySnapshot,
1563 cx: &mut WindowContext,
1564 ) -> Option<Vec<IndentGuideLayout>> {
1565 let indent_guides = self.editor.update(cx, |editor, cx| {
1566 editor.indent_guides(visible_buffer_range, snapshot, cx)
1567 })?;
1568
1569 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1570 editor
1571 .find_active_indent_guide_indices(&indent_guides, snapshot, cx)
1572 .unwrap_or_default()
1573 });
1574
1575 Some(
1576 indent_guides
1577 .into_iter()
1578 .enumerate()
1579 .filter_map(|(i, indent_guide)| {
1580 let single_indent_width =
1581 self.column_pixels(indent_guide.tab_size as usize, cx);
1582 let total_width = single_indent_width * indent_guide.depth as f32;
1583 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1584 if start_x >= text_origin.x {
1585 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1586 indent_guide.multibuffer_row_range.clone(),
1587 line_height,
1588 snapshot,
1589 );
1590
1591 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1592
1593 Some(IndentGuideLayout {
1594 origin: point(start_x, start_y),
1595 length,
1596 single_indent_width,
1597 depth: indent_guide.depth,
1598 active: active_indent_guide_indices.contains(&i),
1599 settings: indent_guide.settings,
1600 })
1601 } else {
1602 None
1603 }
1604 })
1605 .collect(),
1606 )
1607 }
1608
1609 fn calculate_indent_guide_bounds(
1610 row_range: Range<MultiBufferRow>,
1611 line_height: Pixels,
1612 snapshot: &DisplaySnapshot,
1613 ) -> (gpui::Pixels, gpui::Pixels) {
1614 let start_point = Point::new(row_range.start.0, 0);
1615 let end_point = Point::new(row_range.end.0, 0);
1616
1617 let row_range = start_point.to_display_point(snapshot).row()
1618 ..end_point.to_display_point(snapshot).row();
1619
1620 let mut prev_line = start_point;
1621 prev_line.row = prev_line.row.saturating_sub(1);
1622 let prev_line = prev_line.to_display_point(snapshot).row();
1623
1624 let mut cons_line = end_point;
1625 cons_line.row += 1;
1626 let cons_line = cons_line.to_display_point(snapshot).row();
1627
1628 let mut offset_y = row_range.start.0 as f32 * line_height;
1629 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1630
1631 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1632 if row_range.end == cons_line {
1633 length += line_height;
1634 }
1635
1636 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1637 // we want to extend the indent guide to the start of the block.
1638 let mut block_height = 0;
1639 let mut block_offset = 0;
1640 let mut found_excerpt_header = false;
1641 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1642 if matches!(block, Block::ExcerptBoundary { .. }) {
1643 found_excerpt_header = true;
1644 break;
1645 }
1646 block_offset += block.height();
1647 block_height += block.height();
1648 }
1649 if !found_excerpt_header {
1650 offset_y -= block_offset as f32 * line_height;
1651 length += block_height as f32 * line_height;
1652 }
1653
1654 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1655 // we want to ensure that the indent guide stops before the excerpt header.
1656 let mut block_height = 0;
1657 let mut found_excerpt_header = false;
1658 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1659 if matches!(block, Block::ExcerptBoundary { .. }) {
1660 found_excerpt_header = true;
1661 }
1662 block_height += block.height();
1663 }
1664 if found_excerpt_header {
1665 length -= block_height as f32 * line_height;
1666 }
1667
1668 (offset_y, length)
1669 }
1670
1671 #[allow(clippy::too_many_arguments)]
1672 fn layout_run_indicators(
1673 &self,
1674 line_height: Pixels,
1675 range: Range<DisplayRow>,
1676 scroll_pixel_position: gpui::Point<Pixels>,
1677 gutter_dimensions: &GutterDimensions,
1678 gutter_hitbox: &Hitbox,
1679 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1680 snapshot: &EditorSnapshot,
1681 cx: &mut WindowContext,
1682 ) -> Vec<AnyElement> {
1683 self.editor.update(cx, |editor, cx| {
1684 let active_task_indicator_row =
1685 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1686 deployed_from_indicator,
1687 actions,
1688 ..
1689 })) = editor.context_menu.borrow().as_ref()
1690 {
1691 actions
1692 .tasks
1693 .as_ref()
1694 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1695 .or(*deployed_from_indicator)
1696 } else {
1697 None
1698 };
1699
1700 let offset_range_start = snapshot
1701 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1702 .to_offset(&snapshot.buffer_snapshot);
1703 let offset_range_end = snapshot
1704 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1705 .to_offset(&snapshot.buffer_snapshot);
1706
1707 editor
1708 .tasks
1709 .iter()
1710 .filter_map(|(_, tasks)| {
1711 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1712 return None;
1713 }
1714 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1715 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1716 let buffer_folded = snapshot
1717 .buffer_snapshot
1718 .buffer_line_for_row(multibuffer_row)
1719 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1720 .map(|buffer_id| editor.buffer_folded(buffer_id, cx))
1721 .unwrap_or(false);
1722 if buffer_folded {
1723 return None;
1724 }
1725
1726 if snapshot.is_line_folded(multibuffer_row) {
1727 // Skip folded indicators, unless it's the starting line of a fold.
1728 if multibuffer_row
1729 .0
1730 .checked_sub(1)
1731 .map_or(false, |previous_row| {
1732 snapshot.is_line_folded(MultiBufferRow(previous_row))
1733 })
1734 {
1735 return None;
1736 }
1737 }
1738 let display_row = multibuffer_point.to_display_point(snapshot).row();
1739 let button = editor.render_run_indicator(
1740 &self.style,
1741 Some(display_row) == active_task_indicator_row,
1742 display_row,
1743 cx,
1744 );
1745
1746 let button = prepaint_gutter_button(
1747 button,
1748 display_row,
1749 line_height,
1750 gutter_dimensions,
1751 scroll_pixel_position,
1752 gutter_hitbox,
1753 rows_with_hunk_bounds,
1754 cx,
1755 );
1756 Some(button)
1757 })
1758 .collect_vec()
1759 })
1760 }
1761
1762 #[allow(clippy::too_many_arguments)]
1763 fn layout_code_actions_indicator(
1764 &self,
1765 line_height: Pixels,
1766 newest_selection_head: DisplayPoint,
1767 scroll_pixel_position: gpui::Point<Pixels>,
1768 gutter_dimensions: &GutterDimensions,
1769 gutter_hitbox: &Hitbox,
1770 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1771 cx: &mut WindowContext,
1772 ) -> Option<AnyElement> {
1773 let mut active = false;
1774 let mut button = None;
1775 let row = newest_selection_head.row();
1776 self.editor.update(cx, |editor, cx| {
1777 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1778 deployed_from_indicator,
1779 ..
1780 })) = editor.context_menu.borrow().as_ref()
1781 {
1782 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1783 };
1784 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1785 });
1786
1787 let button = prepaint_gutter_button(
1788 button?,
1789 row,
1790 line_height,
1791 gutter_dimensions,
1792 scroll_pixel_position,
1793 gutter_hitbox,
1794 rows_with_hunk_bounds,
1795 cx,
1796 );
1797
1798 Some(button)
1799 }
1800
1801 fn get_participant_color(
1802 participant_index: Option<ParticipantIndex>,
1803 cx: &WindowContext,
1804 ) -> PlayerColor {
1805 if let Some(index) = participant_index {
1806 cx.theme().players().color_for_participant(index.0)
1807 } else {
1808 cx.theme().players().absent()
1809 }
1810 }
1811
1812 fn calculate_relative_line_numbers(
1813 &self,
1814 snapshot: &EditorSnapshot,
1815 rows: &Range<DisplayRow>,
1816 relative_to: Option<DisplayRow>,
1817 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1818 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1819 let Some(relative_to) = relative_to else {
1820 return relative_rows;
1821 };
1822
1823 let start = rows.start.min(relative_to);
1824 let end = rows.end.max(relative_to);
1825
1826 let buffer_rows = snapshot
1827 .buffer_rows(start)
1828 .take(1 + end.minus(start) as usize)
1829 .collect::<Vec<_>>();
1830
1831 let head_idx = relative_to.minus(start);
1832 let mut delta = 1;
1833 let mut i = head_idx + 1;
1834 while i < buffer_rows.len() as u32 {
1835 if buffer_rows[i as usize].is_some() {
1836 if rows.contains(&DisplayRow(i + start.0)) {
1837 relative_rows.insert(DisplayRow(i + start.0), delta);
1838 }
1839 delta += 1;
1840 }
1841 i += 1;
1842 }
1843 delta = 1;
1844 i = head_idx.min(buffer_rows.len() as u32 - 1);
1845 while i > 0 && buffer_rows[i as usize].is_none() {
1846 i -= 1;
1847 }
1848
1849 while i > 0 {
1850 i -= 1;
1851 if buffer_rows[i as usize].is_some() {
1852 if rows.contains(&DisplayRow(i + start.0)) {
1853 relative_rows.insert(DisplayRow(i + start.0), delta);
1854 }
1855 delta += 1;
1856 }
1857 }
1858
1859 relative_rows
1860 }
1861
1862 fn layout_line_numbers(
1863 &self,
1864 rows: Range<DisplayRow>,
1865 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1866 active_rows: &BTreeMap<DisplayRow, bool>,
1867 newest_selection_head: Option<DisplayPoint>,
1868 snapshot: &EditorSnapshot,
1869 cx: &mut WindowContext,
1870 ) -> Vec<Option<ShapedLine>> {
1871 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
1872 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
1873 });
1874 if !include_line_numbers {
1875 return Vec::new();
1876 }
1877
1878 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
1879 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1880 let newest = editor.selections.newest::<Point>(cx);
1881 SelectionLayout::new(
1882 newest,
1883 editor.selections.line_mode,
1884 editor.cursor_shape,
1885 &snapshot.display_snapshot,
1886 true,
1887 true,
1888 None,
1889 )
1890 .head
1891 });
1892 let is_relative = editor.should_use_relative_line_numbers(cx);
1893 (newest_selection_head, is_relative)
1894 });
1895 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1896
1897 let relative_to = if is_relative {
1898 Some(newest_selection_head.row())
1899 } else {
1900 None
1901 };
1902 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1903 let mut line_number = String::new();
1904 buffer_rows
1905 .into_iter()
1906 .enumerate()
1907 .map(|(ix, multibuffer_row)| {
1908 let multibuffer_row = multibuffer_row?;
1909 let display_row = DisplayRow(rows.start.0 + ix as u32);
1910 let color = if active_rows.contains_key(&display_row) {
1911 cx.theme().colors().editor_active_line_number
1912 } else {
1913 cx.theme().colors().editor_line_number
1914 };
1915 line_number.clear();
1916 let default_number = multibuffer_row.0 + 1;
1917 let number = relative_rows
1918 .get(&DisplayRow(ix as u32 + rows.start.0))
1919 .unwrap_or(&default_number);
1920 write!(&mut line_number, "{number}").unwrap();
1921 let run = TextRun {
1922 len: line_number.len(),
1923 font: self.style.text.font(),
1924 color,
1925 background_color: None,
1926 underline: None,
1927 strikethrough: None,
1928 };
1929 let shaped_line = cx
1930 .text_system()
1931 .shape_line(line_number.clone().into(), font_size, &[run])
1932 .unwrap();
1933 Some(shaped_line)
1934 })
1935 .collect()
1936 }
1937
1938 fn layout_crease_toggles(
1939 &self,
1940 rows: Range<DisplayRow>,
1941 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1942 active_rows: &BTreeMap<DisplayRow, bool>,
1943 snapshot: &EditorSnapshot,
1944 cx: &mut WindowContext,
1945 ) -> Vec<Option<AnyElement>> {
1946 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
1947 && snapshot.mode == EditorMode::Full
1948 && self.editor.read(cx).is_singleton(cx);
1949 if include_fold_statuses {
1950 buffer_rows
1951 .into_iter()
1952 .enumerate()
1953 .map(|(ix, row)| {
1954 if let Some(multibuffer_row) = row {
1955 let display_row = DisplayRow(rows.start.0 + ix as u32);
1956 let active = active_rows.contains_key(&display_row);
1957 snapshot.render_crease_toggle(
1958 multibuffer_row,
1959 active,
1960 self.editor.clone(),
1961 cx,
1962 )
1963 } else {
1964 None
1965 }
1966 })
1967 .collect()
1968 } else {
1969 Vec::new()
1970 }
1971 }
1972
1973 fn layout_crease_trailers(
1974 &self,
1975 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1976 snapshot: &EditorSnapshot,
1977 cx: &mut WindowContext,
1978 ) -> Vec<Option<AnyElement>> {
1979 buffer_rows
1980 .into_iter()
1981 .map(|row| {
1982 if let Some(multibuffer_row) = row {
1983 snapshot.render_crease_trailer(multibuffer_row, cx)
1984 } else {
1985 None
1986 }
1987 })
1988 .collect()
1989 }
1990
1991 fn layout_lines(
1992 rows: Range<DisplayRow>,
1993 snapshot: &EditorSnapshot,
1994 style: &EditorStyle,
1995 editor_width: Pixels,
1996 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
1997 cx: &mut WindowContext,
1998 ) -> Vec<LineWithInvisibles> {
1999 if rows.start >= rows.end {
2000 return Vec::new();
2001 }
2002
2003 // Show the placeholder when the editor is empty
2004 if snapshot.is_empty() {
2005 let font_size = style.text.font_size.to_pixels(cx.rem_size());
2006 let placeholder_color = cx.theme().colors().text_placeholder;
2007 let placeholder_text = snapshot.placeholder_text();
2008
2009 let placeholder_lines = placeholder_text
2010 .as_ref()
2011 .map_or("", AsRef::as_ref)
2012 .split('\n')
2013 .skip(rows.start.0 as usize)
2014 .chain(iter::repeat(""))
2015 .take(rows.len());
2016 placeholder_lines
2017 .filter_map(move |line| {
2018 let run = TextRun {
2019 len: line.len(),
2020 font: style.text.font(),
2021 color: placeholder_color,
2022 background_color: None,
2023 underline: Default::default(),
2024 strikethrough: None,
2025 };
2026 cx.text_system()
2027 .shape_line(line.to_string().into(), font_size, &[run])
2028 .log_err()
2029 })
2030 .map(|line| LineWithInvisibles {
2031 width: line.width,
2032 len: line.len,
2033 fragments: smallvec![LineFragment::Text(line)],
2034 invisibles: Vec::new(),
2035 font_size,
2036 })
2037 .collect()
2038 } else {
2039 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2040 LineWithInvisibles::from_chunks(
2041 chunks,
2042 &style,
2043 MAX_LINE_LEN,
2044 rows.len(),
2045 snapshot.mode,
2046 editor_width,
2047 is_row_soft_wrapped,
2048 cx,
2049 )
2050 }
2051 }
2052
2053 fn prepaint_lines(
2054 &self,
2055 start_row: DisplayRow,
2056 line_layouts: &mut [LineWithInvisibles],
2057 line_height: Pixels,
2058 scroll_pixel_position: gpui::Point<Pixels>,
2059 content_origin: gpui::Point<Pixels>,
2060 cx: &mut WindowContext,
2061 ) -> SmallVec<[AnyElement; 1]> {
2062 let mut line_elements = SmallVec::new();
2063 for (ix, line) in line_layouts.iter_mut().enumerate() {
2064 let row = start_row + DisplayRow(ix as u32);
2065 line.prepaint(
2066 line_height,
2067 scroll_pixel_position,
2068 row,
2069 content_origin,
2070 &mut line_elements,
2071 cx,
2072 );
2073 }
2074 line_elements
2075 }
2076
2077 #[allow(clippy::too_many_arguments)]
2078 fn render_block(
2079 &self,
2080 block: &Block,
2081 available_width: AvailableSpace,
2082 block_id: BlockId,
2083 block_row_start: DisplayRow,
2084 snapshot: &EditorSnapshot,
2085 text_x: Pixels,
2086 rows: &Range<DisplayRow>,
2087 line_layouts: &[LineWithInvisibles],
2088 gutter_dimensions: &GutterDimensions,
2089 line_height: Pixels,
2090 em_width: Pixels,
2091 text_hitbox: &Hitbox,
2092 editor_width: Pixels,
2093 scroll_width: &mut Pixels,
2094 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2095 selections: &[Selection<Point>],
2096 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2097 cx: &mut WindowContext,
2098 ) -> (AnyElement, Size<Pixels>) {
2099 let header_padding = px(6.0);
2100 let mut element = match block {
2101 Block::Custom(block) => {
2102 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2103 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2104 let align_to = block_start.to_display_point(snapshot);
2105 let anchor_x = text_x
2106 + if rows.contains(&align_to.row()) {
2107 line_layouts[align_to.row().minus(rows.start) as usize]
2108 .x_for_index(align_to.column() as usize)
2109 } else {
2110 layout_line(
2111 align_to.row(),
2112 snapshot,
2113 &self.style,
2114 editor_width,
2115 is_row_soft_wrapped,
2116 cx,
2117 )
2118 .x_for_index(align_to.column() as usize)
2119 };
2120
2121 let selected = selections
2122 .binary_search_by(|selection| {
2123 if selection.end <= block_start {
2124 Ordering::Less
2125 } else if selection.start >= block_end {
2126 Ordering::Greater
2127 } else {
2128 Ordering::Equal
2129 }
2130 })
2131 .is_ok();
2132
2133 div()
2134 .size_full()
2135 .child(block.render(&mut BlockContext {
2136 context: cx,
2137 anchor_x,
2138 gutter_dimensions,
2139 line_height,
2140 em_width,
2141 block_id,
2142 selected,
2143 max_width: text_hitbox.size.width.max(*scroll_width),
2144 editor_style: &self.style,
2145 }))
2146 .into_any()
2147 }
2148
2149 Block::FoldedBuffer {
2150 first_excerpt,
2151 prev_excerpt,
2152 show_excerpt_controls,
2153 height,
2154 } => {
2155 let block_start = DisplayPoint::new(block_row_start, 0).to_point(snapshot);
2156 let block_end = DisplayPoint::new(block_row_start + *height, 0).to_point(snapshot);
2157 let selected = selections
2158 .binary_search_by(|selection| {
2159 if selection.end <= block_start {
2160 Ordering::Less
2161 } else if selection.start >= block_end {
2162 Ordering::Greater
2163 } else {
2164 Ordering::Equal
2165 }
2166 })
2167 .is_ok();
2168 let icon_offset = gutter_dimensions.width
2169 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2170
2171 let mut result = v_flex().id(block_id).w_full();
2172 if let Some(prev_excerpt) = prev_excerpt {
2173 if *show_excerpt_controls {
2174 result = result.child(
2175 h_flex()
2176 .w(icon_offset)
2177 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2178 .flex_none()
2179 .justify_end()
2180 .child(self.render_expand_excerpt_button(
2181 prev_excerpt.id,
2182 ExpandExcerptDirection::Down,
2183 IconName::ArrowDownFromLine,
2184 cx,
2185 )),
2186 );
2187 }
2188 }
2189
2190 let jump_data = jump_data(snapshot, block_row_start, *height, first_excerpt, cx);
2191 result
2192 .child(self.render_buffer_header(
2193 first_excerpt,
2194 header_padding,
2195 true,
2196 selected,
2197 jump_data,
2198 cx,
2199 ))
2200 .into_any_element()
2201 }
2202 Block::ExcerptBoundary {
2203 prev_excerpt,
2204 next_excerpt,
2205 show_excerpt_controls,
2206 height,
2207 starts_new_buffer,
2208 } => {
2209 let icon_offset = gutter_dimensions.width
2210 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2211
2212 let mut result = v_flex().id(block_id).w_full();
2213 if let Some(prev_excerpt) = prev_excerpt {
2214 if *show_excerpt_controls {
2215 result = result.child(
2216 h_flex()
2217 .w(icon_offset)
2218 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2219 .flex_none()
2220 .justify_end()
2221 .child(self.render_expand_excerpt_button(
2222 prev_excerpt.id,
2223 ExpandExcerptDirection::Down,
2224 IconName::ArrowDownFromLine,
2225 cx,
2226 )),
2227 );
2228 }
2229 }
2230
2231 if let Some(next_excerpt) = next_excerpt {
2232 let jump_data = jump_data(snapshot, block_row_start, *height, next_excerpt, cx);
2233 if *starts_new_buffer {
2234 result = result.child(self.render_buffer_header(
2235 next_excerpt,
2236 header_padding,
2237 false,
2238 false,
2239 jump_data,
2240 cx,
2241 ));
2242 if *show_excerpt_controls {
2243 result = result.child(
2244 h_flex()
2245 .w(icon_offset)
2246 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2247 .flex_none()
2248 .justify_end()
2249 .child(self.render_expand_excerpt_button(
2250 next_excerpt.id,
2251 ExpandExcerptDirection::Up,
2252 IconName::ArrowUpFromLine,
2253 cx,
2254 )),
2255 );
2256 }
2257 } else {
2258 let editor = self.editor.clone();
2259 result = result.child(
2260 h_flex()
2261 .id("excerpt header block")
2262 .group("excerpt-jump-action")
2263 .justify_start()
2264 .w_full()
2265 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2266 .relative()
2267 .child(
2268 div()
2269 .top(px(0.))
2270 .absolute()
2271 .w_full()
2272 .h_px()
2273 .bg(cx.theme().colors().border_variant)
2274 .group_hover("excerpt-jump-action", |style| {
2275 style.bg(cx.theme().colors().border)
2276 }),
2277 )
2278 .cursor_pointer()
2279 .on_click({
2280 let jump_data = jump_data.clone();
2281 cx.listener_for(&self.editor, {
2282 let jump_data = jump_data.clone();
2283 move |editor, e: &ClickEvent, cx| {
2284 cx.stop_propagation();
2285 editor.open_excerpts_common(
2286 Some(jump_data.clone()),
2287 e.down.modifiers.secondary(),
2288 cx,
2289 );
2290 }
2291 })
2292 })
2293 .tooltip({
2294 let jump_data = jump_data.clone();
2295 move |cx| {
2296 let jump_message = format!(
2297 "Jump to {}:L{}",
2298 match &jump_data.path {
2299 Some(project_path) =>
2300 project_path.path.display().to_string(),
2301 None => {
2302 let editor = editor.read(cx);
2303 editor
2304 .file_at(jump_data.position, cx)
2305 .map(|file| {
2306 file.full_path(cx).display().to_string()
2307 })
2308 .or_else(|| {
2309 Some(
2310 editor
2311 .tab_description(0, cx)?
2312 .to_string(),
2313 )
2314 })
2315 .unwrap_or_else(|| {
2316 "Unknown buffer".to_string()
2317 })
2318 }
2319 },
2320 jump_data.position.row + 1
2321 );
2322 Tooltip::for_action(jump_message, &OpenExcerpts, cx)
2323 }
2324 })
2325 .child(
2326 h_flex()
2327 .w(icon_offset)
2328 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2329 * cx.line_height())
2330 .flex_none()
2331 .justify_end()
2332 .child(if *show_excerpt_controls {
2333 self.render_expand_excerpt_button(
2334 next_excerpt.id,
2335 ExpandExcerptDirection::Up,
2336 IconName::ArrowUpFromLine,
2337 cx,
2338 )
2339 } else {
2340 ButtonLike::new("jump-icon")
2341 .style(ButtonStyle::Transparent)
2342 .child(
2343 svg()
2344 .path(IconName::ArrowUpRight.path())
2345 .size(IconSize::XSmall.rems())
2346 .text_color(
2347 cx.theme().colors().border_variant,
2348 )
2349 .group_hover(
2350 "excerpt-jump-action",
2351 |style| {
2352 style.text_color(
2353 cx.theme().colors().border,
2354 )
2355 },
2356 ),
2357 )
2358 }),
2359 ),
2360 );
2361 }
2362 }
2363
2364 result.into_any()
2365 }
2366 };
2367
2368 // Discover the element's content height, then round up to the nearest multiple of line height.
2369 let preliminary_size =
2370 element.layout_as_root(size(available_width, AvailableSpace::MinContent), cx);
2371 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2372 let final_size = if preliminary_size.height == quantized_height {
2373 preliminary_size
2374 } else {
2375 element.layout_as_root(size(available_width, quantized_height.into()), cx)
2376 };
2377
2378 if let BlockId::Custom(custom_block_id) = block_id {
2379 if block.height() > 0 {
2380 let element_height_in_lines =
2381 ((final_size.height / line_height).ceil() as u32).max(1);
2382 if element_height_in_lines != block.height() {
2383 resized_blocks.insert(custom_block_id, element_height_in_lines);
2384 }
2385 }
2386 }
2387
2388 (element, final_size)
2389 }
2390
2391 fn render_buffer_header(
2392 &self,
2393 for_excerpt: &ExcerptInfo,
2394 header_padding: Pixels,
2395 is_folded: bool,
2396 is_selected: bool,
2397 jump_data: JumpData,
2398 cx: &mut WindowContext,
2399 ) -> Div {
2400 let include_root = self
2401 .editor
2402 .read(cx)
2403 .project
2404 .as_ref()
2405 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2406 .unwrap_or_default();
2407 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2408 let filename = path
2409 .as_ref()
2410 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2411 let parent_path = path
2412 .as_ref()
2413 .and_then(|path| Some(path.parent()?.to_string_lossy().to_string() + "/"));
2414
2415 let focus_handle = self.editor.focus_handle(cx);
2416
2417 div()
2418 .px(header_padding)
2419 .pt(header_padding)
2420 .w_full()
2421 .h(FILE_HEADER_HEIGHT as f32 * cx.line_height())
2422 .child(
2423 h_flex()
2424 .size_full()
2425 .gap_2()
2426 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2427 .pl_0p5()
2428 .pr_4()
2429 .rounded_md()
2430 .shadow_md()
2431 .border_1()
2432 .map(|div| {
2433 let border_color = if is_selected {
2434 cx.theme().colors().border_focused
2435 } else {
2436 cx.theme().colors().border
2437 };
2438 div.border_color(border_color)
2439 })
2440 .bg(cx.theme().colors().editor_subheader_background)
2441 .hover(|style| style.bg(cx.theme().colors().element_hover))
2442 .map(|header| {
2443 let editor = self.editor.clone();
2444 let buffer_id = for_excerpt.buffer_id;
2445 let toggle_chevron_icon =
2446 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2447 header.child(
2448 div()
2449 .hover(|style| style.bg(cx.theme().colors().element_selected))
2450 .rounded_sm()
2451 .child(
2452 ButtonLike::new("toggle-buffer-fold")
2453 .style(ui::ButtonStyle::Transparent)
2454 .size(ButtonSize::Large)
2455 .width(px(30.).into())
2456 .children(toggle_chevron_icon)
2457 .tooltip({
2458 let focus_handle = focus_handle.clone();
2459 move |cx| {
2460 Tooltip::for_action_in(
2461 "Toggle Excerpt Fold",
2462 &ToggleFold,
2463 &focus_handle,
2464 cx,
2465 )
2466 }
2467 })
2468 .on_click(move |_, cx| {
2469 if is_folded {
2470 editor.update(cx, |editor, cx| {
2471 editor.unfold_buffer(buffer_id, cx);
2472 });
2473 } else {
2474 editor.update(cx, |editor, cx| {
2475 editor.fold_buffer(buffer_id, cx);
2476 });
2477 }
2478 }),
2479 ),
2480 )
2481 })
2482 .child(
2483 h_flex()
2484 .id("path header block")
2485 .size_full()
2486 .justify_between()
2487 .child(
2488 h_flex()
2489 .gap_2()
2490 .child(
2491 filename
2492 .map(SharedString::from)
2493 .unwrap_or_else(|| "untitled".into()),
2494 )
2495 .when_some(parent_path, |then, path| {
2496 then.child(
2497 div()
2498 .child(path)
2499 .text_color(cx.theme().colors().text_muted),
2500 )
2501 }),
2502 )
2503 .child(Icon::new(IconName::ArrowUpRight))
2504 .cursor_pointer()
2505 .tooltip({
2506 let focus_handle = focus_handle.clone();
2507 move |cx| {
2508 Tooltip::for_action_in(
2509 "Jump To File",
2510 &OpenExcerpts,
2511 &focus_handle,
2512 cx,
2513 )
2514 }
2515 })
2516 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
2517 .on_click(cx.listener_for(&self.editor, {
2518 move |editor, e: &ClickEvent, cx| {
2519 editor.open_excerpts_common(
2520 Some(jump_data.clone()),
2521 e.down.modifiers.secondary(),
2522 cx,
2523 );
2524 }
2525 })),
2526 ),
2527 )
2528 }
2529
2530 fn render_expand_excerpt_button(
2531 &self,
2532 excerpt_id: ExcerptId,
2533 direction: ExpandExcerptDirection,
2534 icon: IconName,
2535 cx: &mut WindowContext,
2536 ) -> ButtonLike {
2537 ButtonLike::new("expand-icon")
2538 .style(ButtonStyle::Transparent)
2539 .child(
2540 svg()
2541 .path(icon.path())
2542 .size(IconSize::XSmall.rems())
2543 .text_color(cx.theme().colors().editor_line_number)
2544 .group("")
2545 .hover(|style| style.text_color(cx.theme().colors().editor_active_line_number)),
2546 )
2547 .on_click(cx.listener_for(&self.editor, {
2548 move |editor, _, cx| {
2549 editor.expand_excerpt(excerpt_id, direction, cx);
2550 }
2551 }))
2552 .tooltip({
2553 move |cx| Tooltip::for_action("Expand Excerpt", &ExpandExcerpts { lines: 0 }, cx)
2554 })
2555 }
2556
2557 #[allow(clippy::too_many_arguments)]
2558 fn render_blocks(
2559 &self,
2560 rows: Range<DisplayRow>,
2561 snapshot: &EditorSnapshot,
2562 hitbox: &Hitbox,
2563 text_hitbox: &Hitbox,
2564 editor_width: Pixels,
2565 scroll_width: &mut Pixels,
2566 gutter_dimensions: &GutterDimensions,
2567 em_width: Pixels,
2568 text_x: Pixels,
2569 line_height: Pixels,
2570 line_layouts: &[LineWithInvisibles],
2571 selections: &[Selection<Point>],
2572 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2573 cx: &mut WindowContext,
2574 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2575 let (fixed_blocks, non_fixed_blocks) = snapshot
2576 .blocks_in_range(rows.clone())
2577 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2578
2579 let mut focused_block = self
2580 .editor
2581 .update(cx, |editor, _| editor.take_focused_block());
2582 let mut fixed_block_max_width = Pixels::ZERO;
2583 let mut blocks = Vec::new();
2584 let mut resized_blocks = HashMap::default();
2585
2586 for (row, block) in fixed_blocks {
2587 let block_id = block.id();
2588
2589 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2590 focused_block = None;
2591 }
2592
2593 let (element, element_size) = self.render_block(
2594 block,
2595 AvailableSpace::MinContent,
2596 block_id,
2597 row,
2598 snapshot,
2599 text_x,
2600 &rows,
2601 line_layouts,
2602 gutter_dimensions,
2603 line_height,
2604 em_width,
2605 text_hitbox,
2606 editor_width,
2607 scroll_width,
2608 &mut resized_blocks,
2609 selections,
2610 is_row_soft_wrapped,
2611 cx,
2612 );
2613 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2614 blocks.push(BlockLayout {
2615 id: block_id,
2616 row: Some(row),
2617 element,
2618 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2619 style: BlockStyle::Fixed,
2620 });
2621 }
2622 for (row, block) in non_fixed_blocks {
2623 let style = block.style();
2624 let width = match style {
2625 BlockStyle::Sticky => hitbox.size.width,
2626 BlockStyle::Flex => hitbox
2627 .size
2628 .width
2629 .max(fixed_block_max_width)
2630 .max(gutter_dimensions.width + *scroll_width),
2631 BlockStyle::Fixed => unreachable!(),
2632 };
2633 let block_id = block.id();
2634
2635 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2636 focused_block = None;
2637 }
2638
2639 let (element, element_size) = self.render_block(
2640 block,
2641 width.into(),
2642 block_id,
2643 row,
2644 snapshot,
2645 text_x,
2646 &rows,
2647 line_layouts,
2648 gutter_dimensions,
2649 line_height,
2650 em_width,
2651 text_hitbox,
2652 editor_width,
2653 scroll_width,
2654 &mut resized_blocks,
2655 selections,
2656 is_row_soft_wrapped,
2657 cx,
2658 );
2659
2660 blocks.push(BlockLayout {
2661 id: block_id,
2662 row: Some(row),
2663 element,
2664 available_space: size(width.into(), element_size.height.into()),
2665 style,
2666 });
2667 }
2668
2669 if let Some(focused_block) = focused_block {
2670 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2671 if focus_handle.is_focused(cx) {
2672 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2673 let style = block.style();
2674 let width = match style {
2675 BlockStyle::Fixed => AvailableSpace::MinContent,
2676 BlockStyle::Flex => AvailableSpace::Definite(
2677 hitbox
2678 .size
2679 .width
2680 .max(fixed_block_max_width)
2681 .max(gutter_dimensions.width + *scroll_width),
2682 ),
2683 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2684 };
2685
2686 let (element, element_size) = self.render_block(
2687 &block,
2688 width,
2689 focused_block.id,
2690 rows.end,
2691 snapshot,
2692 text_x,
2693 &rows,
2694 line_layouts,
2695 gutter_dimensions,
2696 line_height,
2697 em_width,
2698 text_hitbox,
2699 editor_width,
2700 scroll_width,
2701 &mut resized_blocks,
2702 selections,
2703 is_row_soft_wrapped,
2704 cx,
2705 );
2706
2707 blocks.push(BlockLayout {
2708 id: block.id(),
2709 row: None,
2710 element,
2711 available_space: size(width, element_size.height.into()),
2712 style,
2713 });
2714 }
2715 }
2716 }
2717 }
2718
2719 if resized_blocks.is_empty() {
2720 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2721 Ok(blocks)
2722 } else {
2723 Err(resized_blocks)
2724 }
2725 }
2726
2727 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2728 /// a restart of rendering for the editor based on the new sizes.
2729 fn layout_blocks(
2730 &self,
2731 blocks: &mut Vec<BlockLayout>,
2732 block_starts: &mut HashSet<DisplayRow>,
2733 hitbox: &Hitbox,
2734 line_height: Pixels,
2735 scroll_pixel_position: gpui::Point<Pixels>,
2736 cx: &mut WindowContext,
2737 ) {
2738 for block in blocks {
2739 let mut origin = if let Some(row) = block.row {
2740 block_starts.insert(row);
2741 hitbox.origin
2742 + point(
2743 Pixels::ZERO,
2744 row.as_f32() * line_height - scroll_pixel_position.y,
2745 )
2746 } else {
2747 // Position the block outside the visible area
2748 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2749 };
2750
2751 if !matches!(block.style, BlockStyle::Sticky) {
2752 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2753 }
2754
2755 let focus_handle = block
2756 .element
2757 .prepaint_as_root(origin, block.available_space, cx);
2758
2759 if let Some(focus_handle) = focus_handle {
2760 self.editor.update(cx, |editor, _cx| {
2761 editor.set_focused_block(FocusedBlock {
2762 id: block.id,
2763 focus_handle: focus_handle.downgrade(),
2764 });
2765 });
2766 }
2767 }
2768 }
2769
2770 #[allow(clippy::too_many_arguments)]
2771 fn layout_context_menu(
2772 &self,
2773 line_height: Pixels,
2774 text_hitbox: &Hitbox,
2775 content_origin: gpui::Point<Pixels>,
2776 start_row: DisplayRow,
2777 scroll_pixel_position: gpui::Point<Pixels>,
2778 line_layouts: &[LineWithInvisibles],
2779 newest_selection_head: DisplayPoint,
2780 gutter_overshoot: Pixels,
2781 cx: &mut WindowContext,
2782 ) {
2783 let Some(context_menu_origin) = self
2784 .editor
2785 .read(cx)
2786 .context_menu_origin(newest_selection_head)
2787 else {
2788 return;
2789 };
2790 let target_offset = match context_menu_origin {
2791 crate::ContextMenuOrigin::EditorPoint(display_point) => {
2792 let cursor_row_layout =
2793 &line_layouts[display_point.row().minus(start_row) as usize];
2794 gpui::Point {
2795 x: cursor_row_layout.x_for_index(display_point.column() as usize)
2796 - scroll_pixel_position.x,
2797 y: display_point.row().next_row().as_f32() * line_height
2798 - scroll_pixel_position.y,
2799 }
2800 }
2801 crate::ContextMenuOrigin::GutterIndicator(row) => {
2802 // 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
2803 // text field.
2804 gpui::Point {
2805 x: -gutter_overshoot,
2806 y: row.next_row().as_f32() * line_height - scroll_pixel_position.y,
2807 }
2808 }
2809 };
2810
2811 // If the context menu's max height won't fit below, then flip it above the line and display
2812 // it in reverse order. If the available space above is less than below.
2813 let unconstrained_max_height = line_height * 12. + POPOVER_Y_PADDING;
2814 let min_height = line_height * 3. + POPOVER_Y_PADDING;
2815 let target_position = content_origin + target_offset;
2816 let y_overflows_below = target_position.y + unconstrained_max_height > text_hitbox.bottom();
2817 let bottom_y_when_flipped = target_position.y - line_height;
2818 let available_above = bottom_y_when_flipped - text_hitbox.top();
2819 let available_below = text_hitbox.bottom() - target_position.y;
2820 let mut y_is_flipped = y_overflows_below && available_above > available_below;
2821 let mut max_height = cmp::min(
2822 unconstrained_max_height,
2823 if y_is_flipped {
2824 available_above
2825 } else {
2826 available_below
2827 },
2828 );
2829
2830 // If less than 3 lines fit within the text bounds, instead fit within the window.
2831 if max_height < 3. * line_height {
2832 let available_above = bottom_y_when_flipped;
2833 let available_below = cx.viewport_size().height - target_position.y;
2834 if available_below > 3. * line_height {
2835 y_is_flipped = false;
2836 max_height = min_height;
2837 } else if available_above > 3. * line_height {
2838 y_is_flipped = true;
2839 max_height = min_height;
2840 } else if available_above > available_below {
2841 y_is_flipped = true;
2842 max_height = available_above;
2843 } else {
2844 y_is_flipped = false;
2845 max_height = available_below;
2846 }
2847 }
2848
2849 let max_height_in_lines = ((max_height - POPOVER_Y_PADDING) / line_height).floor() as u32;
2850
2851 let Some(mut menu) = self.editor.update(cx, |editor, cx| {
2852 editor.render_context_menu(&self.style, max_height_in_lines, cx)
2853 }) else {
2854 return;
2855 };
2856
2857 let menu_size = menu.layout_as_root(AvailableSpace::min_size(), cx);
2858 let menu_position = gpui::Point {
2859 x: if target_position.x + menu_size.width > cx.viewport_size().width {
2860 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
2861 // overflow.
2862 (cx.viewport_size().width - menu_size.width).max(Pixels::ZERO)
2863 } else {
2864 target_position.x
2865 },
2866 y: if y_is_flipped {
2867 bottom_y_when_flipped - menu_size.height
2868 } else {
2869 target_position.y
2870 },
2871 };
2872
2873 cx.defer_draw(menu, menu_position, 1);
2874 }
2875
2876 #[allow(clippy::too_many_arguments)]
2877 fn layout_inline_completion_popover(
2878 &self,
2879 text_bounds: &Bounds<Pixels>,
2880 editor_snapshot: &EditorSnapshot,
2881 visible_row_range: Range<DisplayRow>,
2882 scroll_top: f32,
2883 scroll_bottom: f32,
2884 line_layouts: &[LineWithInvisibles],
2885 line_height: Pixels,
2886 scroll_pixel_position: gpui::Point<Pixels>,
2887 editor_width: Pixels,
2888 style: &EditorStyle,
2889 cx: &mut WindowContext,
2890 ) -> Option<AnyElement> {
2891 const PADDING_X: Pixels = Pixels(24.);
2892 const PADDING_Y: Pixels = Pixels(2.);
2893
2894 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
2895
2896 match &active_inline_completion.completion {
2897 InlineCompletion::Move(target_position) => {
2898 let tab_kbd = h_flex()
2899 .px_0p5()
2900 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
2901 .text_size(TextSize::XSmall.rems(cx))
2902 .text_color(cx.theme().colors().text.opacity(0.8))
2903 .child("tab");
2904
2905 let icon_container = div().mt(px(2.5)); // For optical alignment
2906
2907 let container_element = h_flex()
2908 .items_center()
2909 .py_0p5()
2910 .px_1()
2911 .gap_1()
2912 .bg(cx.theme().colors().editor_subheader_background)
2913 .border_1()
2914 .border_color(cx.theme().colors().text_accent.opacity(0.2))
2915 .rounded_md()
2916 .shadow_sm();
2917
2918 let target_display_point = target_position.to_display_point(editor_snapshot);
2919 if target_display_point.row().as_f32() < scroll_top {
2920 let mut element = container_element
2921 .child(tab_kbd)
2922 .child(Label::new("Jump to Edit").size(LabelSize::Small))
2923 .child(
2924 icon_container
2925 .child(Icon::new(IconName::ArrowUp).size(IconSize::Small)),
2926 )
2927 .into_any();
2928 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
2929 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
2930 element.prepaint_at(text_bounds.origin + offset, cx);
2931 Some(element)
2932 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
2933 let mut element = container_element
2934 .child(tab_kbd)
2935 .child(Label::new("Jump to Edit").size(LabelSize::Small))
2936 .child(
2937 icon_container
2938 .child(Icon::new(IconName::ArrowDown).size(IconSize::Small)),
2939 )
2940 .into_any();
2941 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
2942 let offset = point(
2943 (text_bounds.size.width - size.width) / 2.,
2944 text_bounds.size.height - size.height - PADDING_Y,
2945 );
2946 element.prepaint_at(text_bounds.origin + offset, cx);
2947 Some(element)
2948 } else {
2949 let mut element = container_element
2950 .child(tab_kbd)
2951 .child(Label::new("Jump to Edit").size(LabelSize::Small))
2952 .into_any();
2953
2954 let target_line_end = DisplayPoint::new(
2955 target_display_point.row(),
2956 editor_snapshot.line_len(target_display_point.row()),
2957 );
2958 let origin = self.editor.update(cx, |editor, cx| {
2959 editor.display_to_pixel_point(target_line_end, editor_snapshot, cx)
2960 })?;
2961 element.prepaint_as_root(
2962 text_bounds.origin + origin + point(PADDING_X, px(0.)),
2963 AvailableSpace::min_size(),
2964 cx,
2965 );
2966 Some(element)
2967 }
2968 }
2969 InlineCompletion::Edit(edits) => {
2970 let edit_start = edits
2971 .first()
2972 .unwrap()
2973 .0
2974 .start
2975 .to_display_point(editor_snapshot);
2976 let edit_end = edits
2977 .last()
2978 .unwrap()
2979 .0
2980 .end
2981 .to_display_point(editor_snapshot);
2982
2983 let is_visible = visible_row_range.contains(&edit_start.row())
2984 || visible_row_range.contains(&edit_end.row());
2985 if !is_visible {
2986 return None;
2987 }
2988
2989 if all_edits_insertions_or_deletions(edits, &editor_snapshot.buffer_snapshot) {
2990 return None;
2991 }
2992
2993 let (text, highlights) = inline_completion_popover_text(editor_snapshot, edits, cx);
2994 let line_count = text.lines().count() + 1;
2995
2996 let longest_row =
2997 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
2998 let longest_line_width = if visible_row_range.contains(&longest_row) {
2999 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3000 } else {
3001 layout_line(
3002 longest_row,
3003 editor_snapshot,
3004 style,
3005 editor_width,
3006 |_| false,
3007 cx,
3008 )
3009 .width
3010 };
3011
3012 let styled_text =
3013 gpui::StyledText::new(text).with_highlights(&style.text, highlights);
3014
3015 let mut element = div()
3016 .bg(cx.theme().colors().editor_background)
3017 .border_1()
3018 .border_color(cx.theme().colors().border)
3019 .rounded_md()
3020 .px_1()
3021 .child(styled_text)
3022 .into_any();
3023
3024 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), cx);
3025 let is_fully_visible =
3026 editor_width >= longest_line_width + PADDING_X + element_bounds.width;
3027
3028 let origin = if is_fully_visible {
3029 text_bounds.origin
3030 + point(
3031 longest_line_width + PADDING_X - scroll_pixel_position.x,
3032 edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
3033 )
3034 } else {
3035 let target_above =
3036 DisplayRow(edit_start.row().0.saturating_sub(line_count as u32));
3037 let row_target = if visible_row_range
3038 .contains(&DisplayRow(target_above.0.saturating_sub(1)))
3039 {
3040 target_above
3041 } else {
3042 DisplayRow(edit_end.row().0 + 1)
3043 };
3044
3045 text_bounds.origin
3046 + point(
3047 -scroll_pixel_position.x,
3048 row_target.as_f32() * line_height - scroll_pixel_position.y,
3049 )
3050 };
3051
3052 element.prepaint_as_root(origin, element_bounds.into(), cx);
3053 Some(element)
3054 }
3055 }
3056 }
3057
3058 fn layout_mouse_context_menu(
3059 &self,
3060 editor_snapshot: &EditorSnapshot,
3061 visible_range: Range<DisplayRow>,
3062 content_origin: gpui::Point<Pixels>,
3063 cx: &mut WindowContext,
3064 ) -> Option<AnyElement> {
3065 let position = self.editor.update(cx, |editor, cx| {
3066 let visible_start_point = editor.display_to_pixel_point(
3067 DisplayPoint::new(visible_range.start, 0),
3068 editor_snapshot,
3069 cx,
3070 )?;
3071 let visible_end_point = editor.display_to_pixel_point(
3072 DisplayPoint::new(visible_range.end, 0),
3073 editor_snapshot,
3074 cx,
3075 )?;
3076
3077 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3078 let (source_display_point, position) = match mouse_context_menu.position {
3079 MenuPosition::PinnedToScreen(point) => (None, point),
3080 MenuPosition::PinnedToEditor { source, offset } => {
3081 let source_display_point = source.to_display_point(editor_snapshot);
3082 let source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
3083 let position = content_origin + source_point + offset;
3084 (Some(source_display_point), position)
3085 }
3086 };
3087
3088 let source_included = source_display_point.map_or(true, |source_display_point| {
3089 visible_range
3090 .to_inclusive()
3091 .contains(&source_display_point.row())
3092 });
3093 let position_included =
3094 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3095 if !source_included && !position_included {
3096 None
3097 } else {
3098 Some(position)
3099 }
3100 })?;
3101
3102 let mut element = self.editor.update(cx, |editor, _| {
3103 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3104 let context_menu = mouse_context_menu.context_menu.clone();
3105
3106 Some(
3107 deferred(
3108 anchored()
3109 .position(position)
3110 .child(context_menu)
3111 .anchor(Corner::TopLeft)
3112 .snap_to_window_with_margin(px(8.)),
3113 )
3114 .with_priority(1)
3115 .into_any(),
3116 )
3117 })?;
3118
3119 element.prepaint_as_root(position, AvailableSpace::min_size(), cx);
3120 Some(element)
3121 }
3122
3123 #[allow(clippy::too_many_arguments)]
3124 fn layout_hover_popovers(
3125 &self,
3126 snapshot: &EditorSnapshot,
3127 hitbox: &Hitbox,
3128 text_hitbox: &Hitbox,
3129 visible_display_row_range: Range<DisplayRow>,
3130 content_origin: gpui::Point<Pixels>,
3131 scroll_pixel_position: gpui::Point<Pixels>,
3132 line_layouts: &[LineWithInvisibles],
3133 line_height: Pixels,
3134 em_width: Pixels,
3135 cx: &mut WindowContext,
3136 ) {
3137 struct MeasuredHoverPopover {
3138 element: AnyElement,
3139 size: Size<Pixels>,
3140 horizontal_offset: Pixels,
3141 }
3142
3143 let max_size = size(
3144 (120. * em_width) // Default size
3145 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3146 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3147 (16. * line_height) // Default size
3148 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3149 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3150 );
3151
3152 let hover_popovers = self.editor.update(cx, |editor, cx| {
3153 editor
3154 .hover_state
3155 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3156 });
3157 let Some((position, hover_popovers)) = hover_popovers else {
3158 return;
3159 };
3160
3161 // This is safe because we check on layout whether the required row is available
3162 let hovered_row_layout =
3163 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3164
3165 // Compute Hovered Point
3166 let x =
3167 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3168 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3169 let hovered_point = content_origin + point(x, y);
3170
3171 let mut overall_height = Pixels::ZERO;
3172 let mut measured_hover_popovers = Vec::new();
3173 for mut hover_popover in hover_popovers {
3174 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), cx);
3175 let horizontal_offset =
3176 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3177
3178 overall_height += HOVER_POPOVER_GAP + size.height;
3179
3180 measured_hover_popovers.push(MeasuredHoverPopover {
3181 element: hover_popover,
3182 size,
3183 horizontal_offset,
3184 });
3185 }
3186 overall_height += HOVER_POPOVER_GAP;
3187
3188 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
3189 let mut occlusion = div()
3190 .size_full()
3191 .occlude()
3192 .on_mouse_move(|_, cx| cx.stop_propagation())
3193 .into_any_element();
3194 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
3195 cx.defer_draw(occlusion, origin, 2);
3196 }
3197
3198 if hovered_point.y > overall_height {
3199 // There is enough space above. Render popovers above the hovered point
3200 let mut current_y = hovered_point.y;
3201 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3202 let size = popover.size;
3203 let popover_origin = point(
3204 hovered_point.x + popover.horizontal_offset,
3205 current_y - size.height,
3206 );
3207
3208 cx.defer_draw(popover.element, popover_origin, 2);
3209 if position != itertools::Position::Last {
3210 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3211 draw_occluder(size.width, origin, cx);
3212 }
3213
3214 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3215 }
3216 } else {
3217 // There is not enough space above. Render popovers below the hovered point
3218 let mut current_y = hovered_point.y + line_height;
3219 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3220 let size = popover.size;
3221 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3222
3223 cx.defer_draw(popover.element, popover_origin, 2);
3224 if position != itertools::Position::Last {
3225 let origin = point(popover_origin.x, popover_origin.y + size.height);
3226 draw_occluder(size.width, origin, cx);
3227 }
3228
3229 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3230 }
3231 }
3232 }
3233
3234 #[allow(clippy::too_many_arguments)]
3235 fn layout_signature_help(
3236 &self,
3237 hitbox: &Hitbox,
3238 content_origin: gpui::Point<Pixels>,
3239 scroll_pixel_position: gpui::Point<Pixels>,
3240 newest_selection_head: Option<DisplayPoint>,
3241 start_row: DisplayRow,
3242 line_layouts: &[LineWithInvisibles],
3243 line_height: Pixels,
3244 em_width: Pixels,
3245 cx: &mut WindowContext,
3246 ) {
3247 if !self.editor.focus_handle(cx).is_focused(cx) {
3248 return;
3249 }
3250 let Some(newest_selection_head) = newest_selection_head else {
3251 return;
3252 };
3253 let selection_row = newest_selection_head.row();
3254 if selection_row < start_row {
3255 return;
3256 }
3257 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3258 else {
3259 return;
3260 };
3261
3262 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3263 - scroll_pixel_position.x
3264 + content_origin.x;
3265 let start_y =
3266 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3267
3268 let max_size = size(
3269 (120. * em_width) // Default size
3270 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3271 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3272 (16. * line_height) // Default size
3273 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3274 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3275 );
3276
3277 let maybe_element = self.editor.update(cx, |editor, cx| {
3278 if let Some(popover) = editor.signature_help_state.popover_mut() {
3279 let element = popover.render(
3280 &self.style,
3281 max_size,
3282 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3283 cx,
3284 );
3285 Some(element)
3286 } else {
3287 None
3288 }
3289 });
3290 if let Some(mut element) = maybe_element {
3291 let window_size = cx.viewport_size();
3292 let size = element.layout_as_root(Size::<AvailableSpace>::default(), cx);
3293 let mut point = point(start_x, start_y - size.height);
3294
3295 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3296 if point.x + size.width >= window_size.width {
3297 point.x = window_size.width - size.width;
3298 }
3299
3300 cx.defer_draw(element, point, 1)
3301 }
3302 }
3303
3304 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
3305 cx.paint_layer(layout.hitbox.bounds, |cx| {
3306 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3307 let gutter_bg = cx.theme().colors().editor_gutter_background;
3308 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3309 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3310
3311 if let EditorMode::Full = layout.mode {
3312 let mut active_rows = layout.active_rows.iter().peekable();
3313 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3314 let mut end_row = start_row.0;
3315 while active_rows
3316 .peek()
3317 .map_or(false, |(active_row, has_selection)| {
3318 active_row.0 == end_row + 1
3319 && *has_selection == contains_non_empty_selection
3320 })
3321 {
3322 active_rows.next().unwrap();
3323 end_row += 1;
3324 }
3325
3326 if !contains_non_empty_selection {
3327 let highlight_h_range =
3328 match layout.position_map.snapshot.current_line_highlight {
3329 CurrentLineHighlight::Gutter => Some(Range {
3330 start: layout.hitbox.left(),
3331 end: layout.gutter_hitbox.right(),
3332 }),
3333 CurrentLineHighlight::Line => Some(Range {
3334 start: layout.text_hitbox.bounds.left(),
3335 end: layout.text_hitbox.bounds.right(),
3336 }),
3337 CurrentLineHighlight::All => Some(Range {
3338 start: layout.hitbox.left(),
3339 end: layout.hitbox.right(),
3340 }),
3341 CurrentLineHighlight::None => None,
3342 };
3343 if let Some(range) = highlight_h_range {
3344 let active_line_bg = cx.theme().colors().editor_active_line_background;
3345 let bounds = Bounds {
3346 origin: point(
3347 range.start,
3348 layout.hitbox.origin.y
3349 + (start_row.as_f32() - scroll_top)
3350 * layout.position_map.line_height,
3351 ),
3352 size: size(
3353 range.end - range.start,
3354 layout.position_map.line_height
3355 * (end_row - start_row.0 + 1) as f32,
3356 ),
3357 };
3358 cx.paint_quad(fill(bounds, active_line_bg));
3359 }
3360 }
3361 }
3362
3363 let mut paint_highlight =
3364 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3365 let origin = point(
3366 layout.hitbox.origin.x,
3367 layout.hitbox.origin.y
3368 + (highlight_row_start.as_f32() - scroll_top)
3369 * layout.position_map.line_height,
3370 );
3371 let size = size(
3372 layout.hitbox.size.width,
3373 layout.position_map.line_height
3374 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3375 );
3376 cx.paint_quad(fill(Bounds { origin, size }, color));
3377 };
3378
3379 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
3380 for (&new_row, &new_color) in &layout.highlighted_rows {
3381 match &mut current_paint {
3382 Some((current_color, current_range)) => {
3383 let current_color = *current_color;
3384 let new_range_started = current_color != new_color
3385 || current_range.end.next_row() != new_row;
3386 if new_range_started {
3387 paint_highlight(
3388 current_range.start,
3389 current_range.end,
3390 current_color,
3391 );
3392 current_paint = Some((new_color, new_row..new_row));
3393 continue;
3394 } else {
3395 current_range.end = current_range.end.next_row();
3396 }
3397 }
3398 None => current_paint = Some((new_color, new_row..new_row)),
3399 };
3400 }
3401 if let Some((color, range)) = current_paint {
3402 paint_highlight(range.start, range.end, color);
3403 }
3404
3405 let scroll_left =
3406 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
3407
3408 for (wrap_position, active) in layout.wrap_guides.iter() {
3409 let x = (layout.text_hitbox.origin.x
3410 + *wrap_position
3411 + layout.position_map.em_width / 2.)
3412 - scroll_left;
3413
3414 let show_scrollbars = layout
3415 .scrollbar_layout
3416 .as_ref()
3417 .map_or(false, |scrollbar| scrollbar.visible);
3418 if x < layout.text_hitbox.origin.x
3419 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
3420 {
3421 continue;
3422 }
3423
3424 let color = if *active {
3425 cx.theme().colors().editor_active_wrap_guide
3426 } else {
3427 cx.theme().colors().editor_wrap_guide
3428 };
3429 cx.paint_quad(fill(
3430 Bounds {
3431 origin: point(x, layout.text_hitbox.origin.y),
3432 size: size(px(1.), layout.text_hitbox.size.height),
3433 },
3434 color,
3435 ));
3436 }
3437 }
3438 })
3439 }
3440
3441 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3442 let Some(indent_guides) = &layout.indent_guides else {
3443 return;
3444 };
3445
3446 let faded_color = |color: Hsla, alpha: f32| {
3447 let mut faded = color;
3448 faded.a = alpha;
3449 faded
3450 };
3451
3452 for indent_guide in indent_guides {
3453 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
3454 let settings = indent_guide.settings;
3455
3456 // TODO fixed for now, expose them through themes later
3457 const INDENT_AWARE_ALPHA: f32 = 0.2;
3458 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
3459 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
3460 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
3461
3462 let line_color = match (settings.coloring, indent_guide.active) {
3463 (IndentGuideColoring::Disabled, _) => None,
3464 (IndentGuideColoring::Fixed, false) => {
3465 Some(cx.theme().colors().editor_indent_guide)
3466 }
3467 (IndentGuideColoring::Fixed, true) => {
3468 Some(cx.theme().colors().editor_indent_guide_active)
3469 }
3470 (IndentGuideColoring::IndentAware, false) => {
3471 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
3472 }
3473 (IndentGuideColoring::IndentAware, true) => {
3474 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
3475 }
3476 };
3477
3478 let background_color = match (settings.background_coloring, indent_guide.active) {
3479 (IndentGuideBackgroundColoring::Disabled, _) => None,
3480 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
3481 indent_accent_colors,
3482 INDENT_AWARE_BACKGROUND_ALPHA,
3483 )),
3484 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
3485 indent_accent_colors,
3486 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
3487 )),
3488 };
3489
3490 let requested_line_width = if indent_guide.active {
3491 settings.active_line_width
3492 } else {
3493 settings.line_width
3494 }
3495 .clamp(1, 10);
3496 let mut line_indicator_width = 0.;
3497 if let Some(color) = line_color {
3498 cx.paint_quad(fill(
3499 Bounds {
3500 origin: indent_guide.origin,
3501 size: size(px(requested_line_width as f32), indent_guide.length),
3502 },
3503 color,
3504 ));
3505 line_indicator_width = requested_line_width as f32;
3506 }
3507
3508 if let Some(color) = background_color {
3509 let width = indent_guide.single_indent_width - px(line_indicator_width);
3510 cx.paint_quad(fill(
3511 Bounds {
3512 origin: point(
3513 indent_guide.origin.x + px(line_indicator_width),
3514 indent_guide.origin.y,
3515 ),
3516 size: size(width, indent_guide.length),
3517 },
3518 color,
3519 ));
3520 }
3521 }
3522 }
3523
3524 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3525 let line_height = layout.position_map.line_height;
3526 let scroll_position = layout.position_map.snapshot.scroll_position();
3527 let scroll_top = scroll_position.y * line_height;
3528
3529 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
3530
3531 for (ix, line) in layout.line_numbers.iter().enumerate() {
3532 if let Some(line) = line {
3533 let line_origin = layout.gutter_hitbox.origin
3534 + point(
3535 layout.gutter_hitbox.size.width
3536 - line.width
3537 - layout.gutter_dimensions.right_padding,
3538 ix as f32 * line_height - (scroll_top % line_height),
3539 );
3540
3541 line.paint(line_origin, line_height, cx).log_err();
3542 }
3543 }
3544 }
3545
3546 fn paint_diff_hunks(layout: &mut EditorLayout, cx: &mut WindowContext) {
3547 if layout.display_hunks.is_empty() {
3548 return;
3549 }
3550
3551 let line_height = layout.position_map.line_height;
3552 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3553 for (hunk, hitbox) in &layout.display_hunks {
3554 let hunk_to_paint = match hunk {
3555 DisplayDiffHunk::Folded { .. } => {
3556 let hunk_bounds = Self::diff_hunk_bounds(
3557 &layout.position_map.snapshot,
3558 line_height,
3559 layout.gutter_hitbox.bounds,
3560 hunk,
3561 );
3562 Some((
3563 hunk_bounds,
3564 cx.theme().status().modified,
3565 Corners::all(px(0.)),
3566 ))
3567 }
3568 DisplayDiffHunk::Unfolded { status, .. } => {
3569 hitbox.as_ref().map(|hunk_hitbox| match status {
3570 DiffHunkStatus::Added => (
3571 hunk_hitbox.bounds,
3572 cx.theme().status().created,
3573 Corners::all(px(0.)),
3574 ),
3575 DiffHunkStatus::Modified => (
3576 hunk_hitbox.bounds,
3577 cx.theme().status().modified,
3578 Corners::all(px(0.)),
3579 ),
3580 DiffHunkStatus::Removed => (
3581 Bounds::new(
3582 point(
3583 hunk_hitbox.origin.x - hunk_hitbox.size.width,
3584 hunk_hitbox.origin.y,
3585 ),
3586 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
3587 ),
3588 cx.theme().status().deleted,
3589 Corners::all(1. * line_height),
3590 ),
3591 })
3592 }
3593 };
3594
3595 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
3596 cx.paint_quad(quad(
3597 hunk_bounds,
3598 corner_radii,
3599 background_color,
3600 Edges::default(),
3601 transparent_black(),
3602 ));
3603 }
3604 }
3605 });
3606 }
3607
3608 pub(super) fn diff_hunk_bounds(
3609 snapshot: &EditorSnapshot,
3610 line_height: Pixels,
3611 gutter_bounds: Bounds<Pixels>,
3612 hunk: &DisplayDiffHunk,
3613 ) -> Bounds<Pixels> {
3614 let scroll_position = snapshot.scroll_position();
3615 let scroll_top = scroll_position.y * line_height;
3616
3617 match hunk {
3618 DisplayDiffHunk::Folded { display_row, .. } => {
3619 let start_y = display_row.as_f32() * line_height - scroll_top;
3620 let end_y = start_y + line_height;
3621
3622 let width = Self::diff_hunk_strip_width(line_height);
3623 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3624 let highlight_size = size(width, end_y - start_y);
3625 Bounds::new(highlight_origin, highlight_size)
3626 }
3627 DisplayDiffHunk::Unfolded {
3628 display_row_range,
3629 status,
3630 ..
3631 } => match status {
3632 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
3633 let start_row = display_row_range.start;
3634 let end_row = display_row_range.end;
3635 // If we're in a multibuffer, row range span might include an
3636 // excerpt header, so if we were to draw the marker straight away,
3637 // the hunk might include the rows of that header.
3638 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
3639 // Instead, we simply check whether the range we're dealing with includes
3640 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
3641 let end_row_in_current_excerpt = snapshot
3642 .blocks_in_range(start_row..end_row)
3643 .find_map(|(start_row, block)| {
3644 if matches!(block, Block::ExcerptBoundary { .. }) {
3645 Some(start_row)
3646 } else {
3647 None
3648 }
3649 })
3650 .unwrap_or(end_row);
3651
3652 let start_y = start_row.as_f32() * line_height - scroll_top;
3653 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
3654
3655 let width = Self::diff_hunk_strip_width(line_height);
3656 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3657 let highlight_size = size(width, end_y - start_y);
3658 Bounds::new(highlight_origin, highlight_size)
3659 }
3660 DiffHunkStatus::Removed => {
3661 let row = display_row_range.start;
3662
3663 let offset = line_height / 2.;
3664 let start_y = row.as_f32() * line_height - offset - scroll_top;
3665 let end_y = start_y + line_height;
3666
3667 let width = (0.35 * line_height).floor();
3668 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3669 let highlight_size = size(width, end_y - start_y);
3670 Bounds::new(highlight_origin, highlight_size)
3671 }
3672 },
3673 }
3674 }
3675
3676 /// Returns the width of the diff strip that will be displayed in the gutter.
3677 pub(super) fn diff_hunk_strip_width(line_height: Pixels) -> Pixels {
3678 // We floor the value to prevent pixel rounding.
3679 (0.275 * line_height).floor()
3680 }
3681
3682 fn paint_gutter_indicators(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3683 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3684 cx.with_element_namespace("crease_toggles", |cx| {
3685 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
3686 crease_toggle.paint(cx);
3687 }
3688 });
3689
3690 for test_indicator in layout.test_indicators.iter_mut() {
3691 test_indicator.paint(cx);
3692 }
3693
3694 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
3695 indicator.paint(cx);
3696 }
3697 });
3698 }
3699
3700 fn paint_gutter_highlights(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3701 for (_, hunk_hitbox) in &layout.display_hunks {
3702 if let Some(hunk_hitbox) = hunk_hitbox {
3703 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
3704 }
3705 }
3706
3707 let show_git_gutter = layout
3708 .position_map
3709 .snapshot
3710 .show_git_diff_gutter
3711 .unwrap_or_else(|| {
3712 matches!(
3713 ProjectSettings::get_global(cx).git.git_gutter,
3714 Some(GitGutterSetting::TrackedFiles)
3715 )
3716 });
3717 if show_git_gutter {
3718 Self::paint_diff_hunks(layout, cx)
3719 }
3720
3721 let highlight_width = 0.275 * layout.position_map.line_height;
3722 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
3723 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3724 for (range, color) in &layout.highlighted_gutter_ranges {
3725 let start_row = if range.start.row() < layout.visible_display_row_range.start {
3726 layout.visible_display_row_range.start - DisplayRow(1)
3727 } else {
3728 range.start.row()
3729 };
3730 let end_row = if range.end.row() > layout.visible_display_row_range.end {
3731 layout.visible_display_row_range.end + DisplayRow(1)
3732 } else {
3733 range.end.row()
3734 };
3735
3736 let start_y = layout.gutter_hitbox.top()
3737 + start_row.0 as f32 * layout.position_map.line_height
3738 - layout.position_map.scroll_pixel_position.y;
3739 let end_y = layout.gutter_hitbox.top()
3740 + (end_row.0 + 1) as f32 * layout.position_map.line_height
3741 - layout.position_map.scroll_pixel_position.y;
3742 let bounds = Bounds::from_corners(
3743 point(layout.gutter_hitbox.left(), start_y),
3744 point(layout.gutter_hitbox.left() + highlight_width, end_y),
3745 );
3746 cx.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
3747 }
3748 });
3749 }
3750
3751 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3752 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
3753 return;
3754 };
3755
3756 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3757 for mut blame_element in blamed_display_rows.into_iter() {
3758 blame_element.paint(cx);
3759 }
3760 })
3761 }
3762
3763 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3764 cx.with_content_mask(
3765 Some(ContentMask {
3766 bounds: layout.text_hitbox.bounds,
3767 }),
3768 |cx| {
3769 let cursor_style = if self
3770 .editor
3771 .read(cx)
3772 .hovered_link_state
3773 .as_ref()
3774 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
3775 {
3776 CursorStyle::PointingHand
3777 } else {
3778 CursorStyle::IBeam
3779 };
3780 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
3781
3782 let invisible_display_ranges = self.paint_highlights(layout, cx);
3783 self.paint_lines(&invisible_display_ranges, layout, cx);
3784 self.paint_redactions(layout, cx);
3785 self.paint_cursors(layout, cx);
3786 self.paint_inline_blame(layout, cx);
3787 cx.with_element_namespace("crease_trailers", |cx| {
3788 for trailer in layout.crease_trailers.iter_mut().flatten() {
3789 trailer.element.paint(cx);
3790 }
3791 });
3792 },
3793 )
3794 }
3795
3796 fn paint_highlights(
3797 &mut self,
3798 layout: &mut EditorLayout,
3799 cx: &mut WindowContext,
3800 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
3801 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3802 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
3803 let line_end_overshoot = 0.15 * layout.position_map.line_height;
3804 for (range, color) in &layout.highlighted_ranges {
3805 self.paint_highlighted_range(
3806 range.clone(),
3807 *color,
3808 Pixels::ZERO,
3809 line_end_overshoot,
3810 layout,
3811 cx,
3812 );
3813 }
3814
3815 let corner_radius = 0.15 * layout.position_map.line_height;
3816
3817 for (player_color, selections) in &layout.selections {
3818 for selection in selections.iter() {
3819 self.paint_highlighted_range(
3820 selection.range.clone(),
3821 player_color.selection,
3822 corner_radius,
3823 corner_radius * 2.,
3824 layout,
3825 cx,
3826 );
3827
3828 if selection.is_local && !selection.range.is_empty() {
3829 invisible_display_ranges.push(selection.range.clone());
3830 }
3831 }
3832 }
3833 invisible_display_ranges
3834 })
3835 }
3836
3837 fn paint_lines(
3838 &mut self,
3839 invisible_display_ranges: &[Range<DisplayPoint>],
3840 layout: &mut EditorLayout,
3841 cx: &mut WindowContext,
3842 ) {
3843 let whitespace_setting = self
3844 .editor
3845 .read(cx)
3846 .buffer
3847 .read(cx)
3848 .settings_at(0, cx)
3849 .show_whitespaces;
3850
3851 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
3852 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
3853 line_with_invisibles.draw(
3854 layout,
3855 row,
3856 layout.content_origin,
3857 whitespace_setting,
3858 invisible_display_ranges,
3859 cx,
3860 )
3861 }
3862
3863 for line_element in &mut layout.line_elements {
3864 line_element.paint(cx);
3865 }
3866 }
3867
3868 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3869 if layout.redacted_ranges.is_empty() {
3870 return;
3871 }
3872
3873 let line_end_overshoot = layout.line_end_overshoot();
3874
3875 // A softer than perfect black
3876 let redaction_color = gpui::rgb(0x0e1111);
3877
3878 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3879 for range in layout.redacted_ranges.iter() {
3880 self.paint_highlighted_range(
3881 range.clone(),
3882 redaction_color.into(),
3883 Pixels::ZERO,
3884 line_end_overshoot,
3885 layout,
3886 cx,
3887 );
3888 }
3889 });
3890 }
3891
3892 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3893 for cursor in &mut layout.visible_cursors {
3894 cursor.paint(layout.content_origin, cx);
3895 }
3896 }
3897
3898 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3899 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
3900 return;
3901 };
3902
3903 let thumb_bounds = scrollbar_layout.thumb_bounds();
3904 if scrollbar_layout.visible {
3905 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
3906 cx.paint_quad(quad(
3907 scrollbar_layout.hitbox.bounds,
3908 Corners::default(),
3909 cx.theme().colors().scrollbar_track_background,
3910 Edges {
3911 top: Pixels::ZERO,
3912 right: Pixels::ZERO,
3913 bottom: Pixels::ZERO,
3914 left: ScrollbarLayout::BORDER_WIDTH,
3915 },
3916 cx.theme().colors().scrollbar_track_border,
3917 ));
3918
3919 let fast_markers =
3920 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
3921 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
3922 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
3923
3924 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
3925 for marker in markers.iter().chain(&fast_markers) {
3926 let mut marker = marker.clone();
3927 marker.bounds.origin += scrollbar_layout.hitbox.origin;
3928 cx.paint_quad(marker);
3929 }
3930
3931 cx.paint_quad(quad(
3932 thumb_bounds,
3933 Corners::default(),
3934 cx.theme().colors().scrollbar_thumb_background,
3935 Edges {
3936 top: Pixels::ZERO,
3937 right: Pixels::ZERO,
3938 bottom: Pixels::ZERO,
3939 left: ScrollbarLayout::BORDER_WIDTH,
3940 },
3941 cx.theme().colors().scrollbar_thumb_border,
3942 ));
3943 });
3944 }
3945
3946 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
3947
3948 let row_height = scrollbar_layout.row_height;
3949 let row_range = scrollbar_layout.visible_row_range.clone();
3950
3951 cx.on_mouse_event({
3952 let editor = self.editor.clone();
3953 let hitbox = scrollbar_layout.hitbox.clone();
3954 let mut mouse_position = cx.mouse_position();
3955 move |event: &MouseMoveEvent, phase, cx| {
3956 if phase == DispatchPhase::Capture {
3957 return;
3958 }
3959
3960 editor.update(cx, |editor, cx| {
3961 if event.pressed_button == Some(MouseButton::Left)
3962 && editor.scroll_manager.is_dragging_scrollbar()
3963 {
3964 let y = mouse_position.y;
3965 let new_y = event.position.y;
3966 if (hitbox.top()..hitbox.bottom()).contains(&y) {
3967 let mut position = editor.scroll_position(cx);
3968 position.y += (new_y - y) / row_height;
3969 if position.y < 0.0 {
3970 position.y = 0.0;
3971 }
3972 editor.set_scroll_position(position, cx);
3973 }
3974
3975 cx.stop_propagation();
3976 } else {
3977 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3978 if hitbox.is_hovered(cx) {
3979 editor.scroll_manager.show_scrollbar(cx);
3980 }
3981 }
3982 mouse_position = event.position;
3983 })
3984 }
3985 });
3986
3987 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
3988 cx.on_mouse_event({
3989 let editor = self.editor.clone();
3990 move |_: &MouseUpEvent, phase, cx| {
3991 if phase == DispatchPhase::Capture {
3992 return;
3993 }
3994
3995 editor.update(cx, |editor, cx| {
3996 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3997 cx.stop_propagation();
3998 });
3999 }
4000 });
4001 } else {
4002 cx.on_mouse_event({
4003 let editor = self.editor.clone();
4004 let hitbox = scrollbar_layout.hitbox.clone();
4005 move |event: &MouseDownEvent, phase, cx| {
4006 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
4007 return;
4008 }
4009
4010 editor.update(cx, |editor, cx| {
4011 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
4012
4013 let y = event.position.y;
4014 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
4015 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
4016 let top_row = center_row
4017 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
4018 let mut position = editor.scroll_position(cx);
4019 position.y = top_row as f32;
4020 editor.set_scroll_position(position, cx);
4021 } else {
4022 editor.scroll_manager.show_scrollbar(cx);
4023 }
4024
4025 cx.stop_propagation();
4026 });
4027 }
4028 });
4029 }
4030 }
4031
4032 fn collect_fast_scrollbar_markers(
4033 &self,
4034 layout: &EditorLayout,
4035 scrollbar_layout: &ScrollbarLayout,
4036 cx: &mut WindowContext,
4037 ) -> Vec<PaintQuad> {
4038 const LIMIT: usize = 100;
4039 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4040 return vec![];
4041 }
4042 let cursor_ranges = layout
4043 .cursors
4044 .iter()
4045 .map(|(point, color)| ColoredRange {
4046 start: point.row(),
4047 end: point.row(),
4048 color: *color,
4049 })
4050 .collect_vec();
4051 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4052 }
4053
4054 fn refresh_slow_scrollbar_markers(
4055 &self,
4056 layout: &EditorLayout,
4057 scrollbar_layout: &ScrollbarLayout,
4058 cx: &mut WindowContext,
4059 ) {
4060 self.editor.update(cx, |editor, cx| {
4061 if !editor.is_singleton(cx)
4062 || !editor
4063 .scrollbar_marker_state
4064 .should_refresh(scrollbar_layout.hitbox.size)
4065 {
4066 return;
4067 }
4068
4069 let scrollbar_layout = scrollbar_layout.clone();
4070 let background_highlights = editor.background_highlights.clone();
4071 let snapshot = layout.position_map.snapshot.clone();
4072 let theme = cx.theme().clone();
4073 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4074
4075 editor.scrollbar_marker_state.dirty = false;
4076 editor.scrollbar_marker_state.pending_refresh =
4077 Some(cx.spawn(|editor, mut cx| async move {
4078 let scrollbar_size = scrollbar_layout.hitbox.size;
4079 let scrollbar_markers = cx
4080 .background_executor()
4081 .spawn(async move {
4082 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4083 let mut marker_quads = Vec::new();
4084 if scrollbar_settings.git_diff {
4085 let marker_row_ranges = snapshot
4086 .diff_map
4087 .diff_hunks(&snapshot.buffer_snapshot)
4088 .map(|hunk| {
4089 let start_display_row =
4090 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4091 .to_display_point(&snapshot.display_snapshot)
4092 .row();
4093 let mut end_display_row =
4094 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4095 .to_display_point(&snapshot.display_snapshot)
4096 .row();
4097 if end_display_row != start_display_row {
4098 end_display_row.0 -= 1;
4099 }
4100 let color = match hunk_status(&hunk) {
4101 DiffHunkStatus::Added => theme.status().created,
4102 DiffHunkStatus::Modified => theme.status().modified,
4103 DiffHunkStatus::Removed => theme.status().deleted,
4104 };
4105 ColoredRange {
4106 start: start_display_row,
4107 end: end_display_row,
4108 color,
4109 }
4110 });
4111
4112 marker_quads.extend(
4113 scrollbar_layout
4114 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4115 );
4116 }
4117
4118 for (background_highlight_id, (_, background_ranges)) in
4119 background_highlights.iter()
4120 {
4121 let is_search_highlights = *background_highlight_id
4122 == TypeId::of::<BufferSearchHighlights>();
4123 let is_symbol_occurrences = *background_highlight_id
4124 == TypeId::of::<DocumentHighlightRead>()
4125 || *background_highlight_id
4126 == TypeId::of::<DocumentHighlightWrite>();
4127 if (is_search_highlights && scrollbar_settings.search_results)
4128 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
4129 {
4130 let mut color = theme.status().info;
4131 if is_symbol_occurrences {
4132 color.fade_out(0.5);
4133 }
4134 let marker_row_ranges = background_ranges.iter().map(|range| {
4135 let display_start = range
4136 .start
4137 .to_display_point(&snapshot.display_snapshot);
4138 let display_end =
4139 range.end.to_display_point(&snapshot.display_snapshot);
4140 ColoredRange {
4141 start: display_start.row(),
4142 end: display_end.row(),
4143 color,
4144 }
4145 });
4146 marker_quads.extend(
4147 scrollbar_layout
4148 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
4149 );
4150 }
4151 }
4152
4153 if scrollbar_settings.diagnostics {
4154 let diagnostics = snapshot
4155 .buffer_snapshot
4156 .diagnostics_in_range::<_, Point>(
4157 Point::zero()..max_point,
4158 false,
4159 )
4160 // We want to sort by severity, in order to paint the most severe diagnostics last.
4161 .sorted_by_key(|diagnostic| {
4162 std::cmp::Reverse(diagnostic.diagnostic.severity)
4163 });
4164
4165 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
4166 let start_display = diagnostic
4167 .range
4168 .start
4169 .to_display_point(&snapshot.display_snapshot);
4170 let end_display = diagnostic
4171 .range
4172 .end
4173 .to_display_point(&snapshot.display_snapshot);
4174 let color = match diagnostic.diagnostic.severity {
4175 DiagnosticSeverity::ERROR => theme.status().error,
4176 DiagnosticSeverity::WARNING => theme.status().warning,
4177 DiagnosticSeverity::INFORMATION => theme.status().info,
4178 _ => theme.status().hint,
4179 };
4180 ColoredRange {
4181 start: start_display.row(),
4182 end: end_display.row(),
4183 color,
4184 }
4185 });
4186 marker_quads.extend(
4187 scrollbar_layout
4188 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
4189 );
4190 }
4191
4192 Arc::from(marker_quads)
4193 })
4194 .await;
4195
4196 editor.update(&mut cx, |editor, cx| {
4197 editor.scrollbar_marker_state.markers = scrollbar_markers;
4198 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
4199 editor.scrollbar_marker_state.pending_refresh = None;
4200 cx.notify();
4201 })?;
4202
4203 Ok(())
4204 }));
4205 });
4206 }
4207
4208 #[allow(clippy::too_many_arguments)]
4209 fn paint_highlighted_range(
4210 &self,
4211 range: Range<DisplayPoint>,
4212 color: Hsla,
4213 corner_radius: Pixels,
4214 line_end_overshoot: Pixels,
4215 layout: &EditorLayout,
4216 cx: &mut WindowContext,
4217 ) {
4218 let start_row = layout.visible_display_row_range.start;
4219 let end_row = layout.visible_display_row_range.end;
4220 if range.start != range.end {
4221 let row_range = if range.end.column() == 0 {
4222 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
4223 } else {
4224 cmp::max(range.start.row(), start_row)
4225 ..cmp::min(range.end.row().next_row(), end_row)
4226 };
4227
4228 let highlighted_range = HighlightedRange {
4229 color,
4230 line_height: layout.position_map.line_height,
4231 corner_radius,
4232 start_y: layout.content_origin.y
4233 + row_range.start.as_f32() * layout.position_map.line_height
4234 - layout.position_map.scroll_pixel_position.y,
4235 lines: row_range
4236 .iter_rows()
4237 .map(|row| {
4238 let line_layout =
4239 &layout.position_map.line_layouts[row.minus(start_row) as usize];
4240 HighlightedRangeLine {
4241 start_x: if row == range.start.row() {
4242 layout.content_origin.x
4243 + line_layout.x_for_index(range.start.column() as usize)
4244 - layout.position_map.scroll_pixel_position.x
4245 } else {
4246 layout.content_origin.x
4247 - layout.position_map.scroll_pixel_position.x
4248 },
4249 end_x: if row == range.end.row() {
4250 layout.content_origin.x
4251 + line_layout.x_for_index(range.end.column() as usize)
4252 - layout.position_map.scroll_pixel_position.x
4253 } else {
4254 layout.content_origin.x + line_layout.width + line_end_overshoot
4255 - layout.position_map.scroll_pixel_position.x
4256 },
4257 }
4258 })
4259 .collect(),
4260 };
4261
4262 highlighted_range.paint(layout.text_hitbox.bounds, cx);
4263 }
4264 }
4265
4266 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4267 if let Some(mut inline_blame) = layout.inline_blame.take() {
4268 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4269 inline_blame.paint(cx);
4270 })
4271 }
4272 }
4273
4274 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4275 for mut block in layout.blocks.drain(..) {
4276 block.element.paint(cx);
4277 }
4278 }
4279
4280 fn paint_inline_completion_popover(
4281 &mut self,
4282 layout: &mut EditorLayout,
4283 cx: &mut WindowContext,
4284 ) {
4285 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
4286 inline_completion_popover.paint(cx);
4287 }
4288 }
4289
4290 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4291 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
4292 mouse_context_menu.paint(cx);
4293 }
4294 }
4295
4296 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4297 cx.on_mouse_event({
4298 let position_map = layout.position_map.clone();
4299 let editor = self.editor.clone();
4300 let hitbox = layout.hitbox.clone();
4301 let mut delta = ScrollDelta::default();
4302
4303 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
4304 // accidentally turn off their scrolling.
4305 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
4306
4307 move |event: &ScrollWheelEvent, phase, cx| {
4308 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
4309 delta = delta.coalesce(event.delta);
4310 editor.update(cx, |editor, cx| {
4311 let position_map: &PositionMap = &position_map;
4312
4313 let line_height = position_map.line_height;
4314 let max_glyph_width = position_map.em_width;
4315 let (delta, axis) = match delta {
4316 gpui::ScrollDelta::Pixels(mut pixels) => {
4317 //Trackpad
4318 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
4319 (pixels, axis)
4320 }
4321
4322 gpui::ScrollDelta::Lines(lines) => {
4323 //Not trackpad
4324 let pixels =
4325 point(lines.x * max_glyph_width, lines.y * line_height);
4326 (pixels, None)
4327 }
4328 };
4329
4330 let current_scroll_position = position_map.snapshot.scroll_position();
4331 let x = (current_scroll_position.x * max_glyph_width
4332 - (delta.x * scroll_sensitivity))
4333 / max_glyph_width;
4334 let y = (current_scroll_position.y * line_height
4335 - (delta.y * scroll_sensitivity))
4336 / line_height;
4337 let mut scroll_position =
4338 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
4339 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
4340 if forbid_vertical_scroll {
4341 scroll_position.y = current_scroll_position.y;
4342 }
4343
4344 if scroll_position != current_scroll_position {
4345 editor.scroll(scroll_position, axis, cx);
4346 cx.stop_propagation();
4347 } else if y < 0. {
4348 // Due to clamping, we may fail to detect cases of overscroll to the top;
4349 // We want the scroll manager to get an update in such cases and detect the change of direction
4350 // on the next frame.
4351 cx.notify();
4352 }
4353 });
4354 }
4355 }
4356 });
4357 }
4358
4359 fn paint_mouse_listeners(
4360 &mut self,
4361 layout: &EditorLayout,
4362 hovered_hunk: Option<HoveredHunk>,
4363 cx: &mut WindowContext,
4364 ) {
4365 self.paint_scroll_wheel_listener(layout, cx);
4366
4367 cx.on_mouse_event({
4368 let position_map = layout.position_map.clone();
4369 let editor = self.editor.clone();
4370 let text_hitbox = layout.text_hitbox.clone();
4371 let gutter_hitbox = layout.gutter_hitbox.clone();
4372
4373 move |event: &MouseDownEvent, phase, cx| {
4374 if phase == DispatchPhase::Bubble {
4375 match event.button {
4376 MouseButton::Left => editor.update(cx, |editor, cx| {
4377 Self::mouse_left_down(
4378 editor,
4379 event,
4380 hovered_hunk.clone(),
4381 &position_map,
4382 &text_hitbox,
4383 &gutter_hitbox,
4384 cx,
4385 );
4386 }),
4387 MouseButton::Right => editor.update(cx, |editor, cx| {
4388 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
4389 }),
4390 MouseButton::Middle => editor.update(cx, |editor, cx| {
4391 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
4392 }),
4393 _ => {}
4394 };
4395 }
4396 }
4397 });
4398
4399 cx.on_mouse_event({
4400 let editor = self.editor.clone();
4401 let position_map = layout.position_map.clone();
4402 let text_hitbox = layout.text_hitbox.clone();
4403
4404 move |event: &MouseUpEvent, phase, cx| {
4405 if phase == DispatchPhase::Bubble {
4406 editor.update(cx, |editor, cx| {
4407 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
4408 });
4409 }
4410 }
4411 });
4412 cx.on_mouse_event({
4413 let position_map = layout.position_map.clone();
4414 let editor = self.editor.clone();
4415 let text_hitbox = layout.text_hitbox.clone();
4416 let gutter_hitbox = layout.gutter_hitbox.clone();
4417
4418 move |event: &MouseMoveEvent, phase, cx| {
4419 if phase == DispatchPhase::Bubble {
4420 editor.update(cx, |editor, cx| {
4421 if editor.hover_state.focused(cx) {
4422 return;
4423 }
4424 if event.pressed_button == Some(MouseButton::Left)
4425 || event.pressed_button == Some(MouseButton::Middle)
4426 {
4427 Self::mouse_dragged(
4428 editor,
4429 event,
4430 &position_map,
4431 text_hitbox.bounds,
4432 cx,
4433 )
4434 }
4435
4436 Self::mouse_moved(
4437 editor,
4438 event,
4439 &position_map,
4440 &text_hitbox,
4441 &gutter_hitbox,
4442 cx,
4443 )
4444 });
4445 }
4446 }
4447 });
4448 }
4449
4450 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
4451 bounds.top_right().x - self.style.scrollbar_width
4452 }
4453
4454 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
4455 let style = &self.style;
4456 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4457 let layout = cx
4458 .text_system()
4459 .shape_line(
4460 SharedString::from(" ".repeat(column)),
4461 font_size,
4462 &[TextRun {
4463 len: column,
4464 font: style.text.font(),
4465 color: Hsla::default(),
4466 background_color: None,
4467 underline: None,
4468 strikethrough: None,
4469 }],
4470 )
4471 .unwrap();
4472
4473 layout.width
4474 }
4475
4476 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
4477 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
4478 self.column_pixels(digit_count, cx)
4479 }
4480}
4481
4482fn jump_data(
4483 snapshot: &EditorSnapshot,
4484 block_row_start: DisplayRow,
4485 height: u32,
4486 for_excerpt: &ExcerptInfo,
4487 cx: &mut WindowContext<'_>,
4488) -> JumpData {
4489 let range = &for_excerpt.range;
4490 let buffer = &for_excerpt.buffer;
4491 let jump_path = project::File::from_dyn(buffer.file()).map(|file| ProjectPath {
4492 worktree_id: file.worktree_id(cx),
4493 path: file.path.clone(),
4494 });
4495 let jump_anchor = range
4496 .primary
4497 .as_ref()
4498 .map_or(range.context.start, |primary| primary.start);
4499
4500 let excerpt_start = range.context.start;
4501 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
4502 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
4503 0
4504 } else {
4505 let excerpt_start_row = language::ToPoint::to_point(&jump_anchor, buffer).row;
4506 jump_position.row - excerpt_start_row
4507 };
4508 let line_offset_from_top = block_row_start.0 + height + offset_from_excerpt_start
4509 - snapshot
4510 .scroll_anchor
4511 .scroll_position(&snapshot.display_snapshot)
4512 .y as u32;
4513 JumpData {
4514 excerpt_id: for_excerpt.id,
4515 anchor: jump_anchor,
4516 position: language::ToPoint::to_point(&jump_anchor, buffer),
4517 path: jump_path,
4518 line_offset_from_top,
4519 }
4520}
4521
4522fn inline_completion_popover_text(
4523 editor_snapshot: &EditorSnapshot,
4524 edits: &Vec<(Range<Anchor>, String)>,
4525 cx: &WindowContext,
4526) -> (String, Vec<(Range<usize>, HighlightStyle)>) {
4527 let edit_start = edits
4528 .first()
4529 .unwrap()
4530 .0
4531 .start
4532 .to_display_point(editor_snapshot);
4533
4534 let mut text = String::new();
4535 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
4536 let mut highlights = Vec::new();
4537 for (old_range, new_text) in edits {
4538 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
4539 text.extend(
4540 editor_snapshot
4541 .buffer_snapshot
4542 .chunks(offset..old_offset_range.start, false)
4543 .map(|chunk| chunk.text),
4544 );
4545 offset = old_offset_range.end;
4546
4547 let start = text.len();
4548 text.push_str(new_text);
4549 let end = text.len();
4550 highlights.push((
4551 start..end,
4552 HighlightStyle {
4553 background_color: Some(cx.theme().status().created_background),
4554 ..Default::default()
4555 },
4556 ));
4557 }
4558
4559 let edit_end = edits
4560 .last()
4561 .unwrap()
4562 .0
4563 .end
4564 .to_display_point(editor_snapshot);
4565 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
4566 .to_offset(editor_snapshot, Bias::Right);
4567 text.extend(
4568 editor_snapshot
4569 .buffer_snapshot
4570 .chunks(offset..end_of_line, false)
4571 .map(|chunk| chunk.text),
4572 );
4573
4574 (text, highlights)
4575}
4576
4577fn all_edits_insertions_or_deletions(
4578 edits: &Vec<(Range<Anchor>, String)>,
4579 snapshot: &MultiBufferSnapshot,
4580) -> bool {
4581 let mut all_insertions = true;
4582 let mut all_deletions = true;
4583
4584 for (range, new_text) in edits.iter() {
4585 let range_is_empty = range.to_offset(&snapshot).is_empty();
4586 let text_is_empty = new_text.is_empty();
4587
4588 if range_is_empty != text_is_empty {
4589 if range_is_empty {
4590 all_deletions = false;
4591 } else {
4592 all_insertions = false;
4593 }
4594 } else {
4595 return false;
4596 }
4597
4598 if !all_insertions && !all_deletions {
4599 return false;
4600 }
4601 }
4602 all_insertions || all_deletions
4603}
4604
4605#[allow(clippy::too_many_arguments)]
4606fn prepaint_gutter_button(
4607 button: IconButton,
4608 row: DisplayRow,
4609 line_height: Pixels,
4610 gutter_dimensions: &GutterDimensions,
4611 scroll_pixel_position: gpui::Point<Pixels>,
4612 gutter_hitbox: &Hitbox,
4613 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
4614 cx: &mut WindowContext<'_>,
4615) -> AnyElement {
4616 let mut button = button.into_any_element();
4617 let available_space = size(
4618 AvailableSpace::MinContent,
4619 AvailableSpace::Definite(line_height),
4620 );
4621 let indicator_size = button.layout_as_root(available_space, cx);
4622
4623 let blame_width = gutter_dimensions.git_blame_entries_width;
4624 let gutter_width = rows_with_hunk_bounds
4625 .get(&row)
4626 .map(|bounds| bounds.size.width);
4627 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
4628
4629 let mut x = left_offset;
4630 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
4631 - indicator_size.width
4632 - left_offset;
4633 x += available_width / 2.;
4634
4635 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
4636 y += (line_height - indicator_size.height) / 2.;
4637
4638 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
4639 button
4640}
4641
4642fn render_inline_blame_entry(
4643 blame: &gpui::Model<GitBlame>,
4644 blame_entry: BlameEntry,
4645 style: &EditorStyle,
4646 workspace: Option<WeakView<Workspace>>,
4647 cx: &mut WindowContext<'_>,
4648) -> AnyElement {
4649 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4650
4651 let author = blame_entry.author.as_deref().unwrap_or_default();
4652 let summary_enabled = ProjectSettings::get_global(cx)
4653 .git
4654 .show_inline_commit_summary();
4655
4656 let text = match blame_entry.summary.as_ref() {
4657 Some(summary) if summary_enabled => {
4658 format!("{}, {} - {}", author, relative_timestamp, summary)
4659 }
4660 _ => format!("{}, {}", author, relative_timestamp),
4661 };
4662
4663 let details = blame.read(cx).details_for_entry(&blame_entry);
4664
4665 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
4666
4667 h_flex()
4668 .id("inline-blame")
4669 .w_full()
4670 .font_family(style.text.font().family)
4671 .text_color(cx.theme().status().hint)
4672 .line_height(style.text.line_height)
4673 .child(Icon::new(IconName::FileGit).color(Color::Hint))
4674 .child(text)
4675 .gap_2()
4676 .hoverable_tooltip(move |_| tooltip.clone().into())
4677 .into_any()
4678}
4679
4680fn render_blame_entry(
4681 ix: usize,
4682 blame: &gpui::Model<GitBlame>,
4683 blame_entry: BlameEntry,
4684 style: &EditorStyle,
4685 last_used_color: &mut Option<(PlayerColor, Oid)>,
4686 editor: View<Editor>,
4687 cx: &mut WindowContext<'_>,
4688) -> AnyElement {
4689 let mut sha_color = cx
4690 .theme()
4691 .players()
4692 .color_for_participant(blame_entry.sha.into());
4693 // If the last color we used is the same as the one we get for this line, but
4694 // the commit SHAs are different, then we try again to get a different color.
4695 match *last_used_color {
4696 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
4697 let index: u32 = blame_entry.sha.into();
4698 sha_color = cx.theme().players().color_for_participant(index + 1);
4699 }
4700 _ => {}
4701 };
4702 last_used_color.replace((sha_color, blame_entry.sha));
4703
4704 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4705
4706 let short_commit_id = blame_entry.sha.display_short();
4707
4708 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
4709 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
4710
4711 let details = blame.read(cx).details_for_entry(&blame_entry);
4712
4713 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
4714
4715 let tooltip = cx.new_view(|_| {
4716 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
4717 });
4718
4719 h_flex()
4720 .w_full()
4721 .justify_between()
4722 .font_family(style.text.font().family)
4723 .line_height(style.text.line_height)
4724 .id(("blame", ix))
4725 .text_color(cx.theme().status().hint)
4726 .pr_2()
4727 .gap_2()
4728 .child(
4729 h_flex()
4730 .items_center()
4731 .gap_2()
4732 .child(div().text_color(sha_color.cursor).child(short_commit_id))
4733 .child(name),
4734 )
4735 .child(relative_timestamp)
4736 .on_mouse_down(MouseButton::Right, {
4737 let blame_entry = blame_entry.clone();
4738 let details = details.clone();
4739 move |event, cx| {
4740 deploy_blame_entry_context_menu(
4741 &blame_entry,
4742 details.as_ref(),
4743 editor.clone(),
4744 event.position,
4745 cx,
4746 );
4747 }
4748 })
4749 .hover(|style| style.bg(cx.theme().colors().element_hover))
4750 .when_some(
4751 details.and_then(|details| details.permalink),
4752 |this, url| {
4753 let url = url.clone();
4754 this.cursor_pointer().on_click(move |_, cx| {
4755 cx.stop_propagation();
4756 cx.open_url(url.as_str())
4757 })
4758 },
4759 )
4760 .hoverable_tooltip(move |_| tooltip.clone().into())
4761 .into_any()
4762}
4763
4764fn deploy_blame_entry_context_menu(
4765 blame_entry: &BlameEntry,
4766 details: Option<&CommitDetails>,
4767 editor: View<Editor>,
4768 position: gpui::Point<Pixels>,
4769 cx: &mut WindowContext<'_>,
4770) {
4771 let context_menu = ContextMenu::build(cx, move |menu, _| {
4772 let sha = format!("{}", blame_entry.sha);
4773 menu.on_blur_subscription(Subscription::new(|| {}))
4774 .entry("Copy commit SHA", None, move |cx| {
4775 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
4776 })
4777 .when_some(
4778 details.and_then(|details| details.permalink.clone()),
4779 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
4780 )
4781 });
4782
4783 editor.update(cx, move |editor, cx| {
4784 editor.mouse_context_menu = Some(MouseContextMenu::new(
4785 MenuPosition::PinnedToScreen(position),
4786 context_menu,
4787 cx,
4788 ));
4789 cx.notify();
4790 });
4791}
4792
4793#[derive(Debug)]
4794pub(crate) struct LineWithInvisibles {
4795 fragments: SmallVec<[LineFragment; 1]>,
4796 invisibles: Vec<Invisible>,
4797 len: usize,
4798 width: Pixels,
4799 font_size: Pixels,
4800}
4801
4802#[allow(clippy::large_enum_variant)]
4803enum LineFragment {
4804 Text(ShapedLine),
4805 Element {
4806 element: Option<AnyElement>,
4807 size: Size<Pixels>,
4808 len: usize,
4809 },
4810}
4811
4812impl fmt::Debug for LineFragment {
4813 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
4814 match self {
4815 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
4816 LineFragment::Element { size, len, .. } => f
4817 .debug_struct("Element")
4818 .field("size", size)
4819 .field("len", len)
4820 .finish(),
4821 }
4822 }
4823}
4824
4825impl LineWithInvisibles {
4826 #[allow(clippy::too_many_arguments)]
4827 fn from_chunks<'a>(
4828 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
4829 editor_style: &EditorStyle,
4830 max_line_len: usize,
4831 max_line_count: usize,
4832 editor_mode: EditorMode,
4833 text_width: Pixels,
4834 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4835 cx: &mut WindowContext,
4836 ) -> Vec<Self> {
4837 let text_style = &editor_style.text;
4838 let mut layouts = Vec::with_capacity(max_line_count);
4839 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
4840 let mut line = String::new();
4841 let mut invisibles = Vec::new();
4842 let mut width = Pixels::ZERO;
4843 let mut len = 0;
4844 let mut styles = Vec::new();
4845 let mut non_whitespace_added = false;
4846 let mut row = 0;
4847 let mut line_exceeded_max_len = false;
4848 let font_size = text_style.font_size.to_pixels(cx.rem_size());
4849
4850 let ellipsis = SharedString::from("⋯");
4851
4852 for highlighted_chunk in chunks.chain([HighlightedChunk {
4853 text: "\n",
4854 style: None,
4855 is_tab: false,
4856 replacement: None,
4857 }]) {
4858 if let Some(replacement) = highlighted_chunk.replacement {
4859 if !line.is_empty() {
4860 let shaped_line = cx
4861 .text_system()
4862 .shape_line(line.clone().into(), font_size, &styles)
4863 .unwrap();
4864 width += shaped_line.width;
4865 len += shaped_line.len;
4866 fragments.push(LineFragment::Text(shaped_line));
4867 line.clear();
4868 styles.clear();
4869 }
4870
4871 match replacement {
4872 ChunkReplacement::Renderer(renderer) => {
4873 let available_width = if renderer.constrain_width {
4874 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
4875 ellipsis.clone()
4876 } else {
4877 SharedString::from(Arc::from(highlighted_chunk.text))
4878 };
4879 let shaped_line = cx
4880 .text_system()
4881 .shape_line(
4882 chunk,
4883 font_size,
4884 &[text_style.to_run(highlighted_chunk.text.len())],
4885 )
4886 .unwrap();
4887 AvailableSpace::Definite(shaped_line.width)
4888 } else {
4889 AvailableSpace::MinContent
4890 };
4891
4892 let mut element = (renderer.render)(&mut ChunkRendererContext {
4893 context: cx,
4894 max_width: text_width,
4895 });
4896 let line_height = text_style.line_height_in_pixels(cx.rem_size());
4897 let size = element.layout_as_root(
4898 size(available_width, AvailableSpace::Definite(line_height)),
4899 cx,
4900 );
4901
4902 width += size.width;
4903 len += highlighted_chunk.text.len();
4904 fragments.push(LineFragment::Element {
4905 element: Some(element),
4906 size,
4907 len: highlighted_chunk.text.len(),
4908 });
4909 }
4910 ChunkReplacement::Str(x) => {
4911 let text_style = if let Some(style) = highlighted_chunk.style {
4912 Cow::Owned(text_style.clone().highlight(style))
4913 } else {
4914 Cow::Borrowed(text_style)
4915 };
4916
4917 let run = TextRun {
4918 len: x.len(),
4919 font: text_style.font(),
4920 color: text_style.color,
4921 background_color: text_style.background_color,
4922 underline: text_style.underline,
4923 strikethrough: text_style.strikethrough,
4924 };
4925 let line_layout = cx
4926 .text_system()
4927 .shape_line(x, font_size, &[run])
4928 .unwrap()
4929 .with_len(highlighted_chunk.text.len());
4930
4931 width += line_layout.width;
4932 len += highlighted_chunk.text.len();
4933 fragments.push(LineFragment::Text(line_layout))
4934 }
4935 }
4936 } else {
4937 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
4938 if ix > 0 {
4939 let shaped_line = cx
4940 .text_system()
4941 .shape_line(line.clone().into(), font_size, &styles)
4942 .unwrap();
4943 width += shaped_line.width;
4944 len += shaped_line.len;
4945 fragments.push(LineFragment::Text(shaped_line));
4946 layouts.push(Self {
4947 width: mem::take(&mut width),
4948 len: mem::take(&mut len),
4949 fragments: mem::take(&mut fragments),
4950 invisibles: std::mem::take(&mut invisibles),
4951 font_size,
4952 });
4953
4954 line.clear();
4955 styles.clear();
4956 row += 1;
4957 line_exceeded_max_len = false;
4958 non_whitespace_added = false;
4959 if row == max_line_count {
4960 return layouts;
4961 }
4962 }
4963
4964 if !line_chunk.is_empty() && !line_exceeded_max_len {
4965 let text_style = if let Some(style) = highlighted_chunk.style {
4966 Cow::Owned(text_style.clone().highlight(style))
4967 } else {
4968 Cow::Borrowed(text_style)
4969 };
4970
4971 if line.len() + line_chunk.len() > max_line_len {
4972 let mut chunk_len = max_line_len - line.len();
4973 while !line_chunk.is_char_boundary(chunk_len) {
4974 chunk_len -= 1;
4975 }
4976 line_chunk = &line_chunk[..chunk_len];
4977 line_exceeded_max_len = true;
4978 }
4979
4980 styles.push(TextRun {
4981 len: line_chunk.len(),
4982 font: text_style.font(),
4983 color: text_style.color,
4984 background_color: text_style.background_color,
4985 underline: text_style.underline,
4986 strikethrough: text_style.strikethrough,
4987 });
4988
4989 if editor_mode == EditorMode::Full {
4990 // Line wrap pads its contents with fake whitespaces,
4991 // avoid printing them
4992 let is_soft_wrapped = is_row_soft_wrapped(row);
4993 if highlighted_chunk.is_tab {
4994 if non_whitespace_added || !is_soft_wrapped {
4995 invisibles.push(Invisible::Tab {
4996 line_start_offset: line.len(),
4997 line_end_offset: line.len() + line_chunk.len(),
4998 });
4999 }
5000 } else {
5001 invisibles.extend(
5002 line_chunk
5003 .bytes()
5004 .enumerate()
5005 .filter(|(_, line_byte)| {
5006 let is_whitespace =
5007 (*line_byte as char).is_whitespace();
5008 non_whitespace_added |= !is_whitespace;
5009 is_whitespace
5010 && (non_whitespace_added || !is_soft_wrapped)
5011 })
5012 .map(|(whitespace_index, _)| Invisible::Whitespace {
5013 line_offset: line.len() + whitespace_index,
5014 }),
5015 )
5016 }
5017 }
5018
5019 line.push_str(line_chunk);
5020 }
5021 }
5022 }
5023 }
5024
5025 layouts
5026 }
5027
5028 fn prepaint(
5029 &mut self,
5030 line_height: Pixels,
5031 scroll_pixel_position: gpui::Point<Pixels>,
5032 row: DisplayRow,
5033 content_origin: gpui::Point<Pixels>,
5034 line_elements: &mut SmallVec<[AnyElement; 1]>,
5035 cx: &mut WindowContext,
5036 ) {
5037 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
5038 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
5039 for fragment in &mut self.fragments {
5040 match fragment {
5041 LineFragment::Text(line) => {
5042 fragment_origin.x += line.width;
5043 }
5044 LineFragment::Element { element, size, .. } => {
5045 let mut element = element
5046 .take()
5047 .expect("you can't prepaint LineWithInvisibles twice");
5048
5049 // Center the element vertically within the line.
5050 let mut element_origin = fragment_origin;
5051 element_origin.y += (line_height - size.height) / 2.;
5052 element.prepaint_at(element_origin, cx);
5053 line_elements.push(element);
5054
5055 fragment_origin.x += size.width;
5056 }
5057 }
5058 }
5059 }
5060
5061 fn draw(
5062 &self,
5063 layout: &EditorLayout,
5064 row: DisplayRow,
5065 content_origin: gpui::Point<Pixels>,
5066 whitespace_setting: ShowWhitespaceSetting,
5067 selection_ranges: &[Range<DisplayPoint>],
5068 cx: &mut WindowContext,
5069 ) {
5070 let line_height = layout.position_map.line_height;
5071 let line_y = line_height
5072 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
5073
5074 let mut fragment_origin =
5075 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
5076
5077 for fragment in &self.fragments {
5078 match fragment {
5079 LineFragment::Text(line) => {
5080 line.paint(fragment_origin, line_height, cx).log_err();
5081 fragment_origin.x += line.width;
5082 }
5083 LineFragment::Element { size, .. } => {
5084 fragment_origin.x += size.width;
5085 }
5086 }
5087 }
5088
5089 self.draw_invisibles(
5090 selection_ranges,
5091 layout,
5092 content_origin,
5093 line_y,
5094 row,
5095 line_height,
5096 whitespace_setting,
5097 cx,
5098 );
5099 }
5100
5101 #[allow(clippy::too_many_arguments)]
5102 fn draw_invisibles(
5103 &self,
5104 selection_ranges: &[Range<DisplayPoint>],
5105 layout: &EditorLayout,
5106 content_origin: gpui::Point<Pixels>,
5107 line_y: Pixels,
5108 row: DisplayRow,
5109 line_height: Pixels,
5110 whitespace_setting: ShowWhitespaceSetting,
5111 cx: &mut WindowContext,
5112 ) {
5113 let extract_whitespace_info = |invisible: &Invisible| {
5114 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
5115 Invisible::Tab {
5116 line_start_offset,
5117 line_end_offset,
5118 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
5119 Invisible::Whitespace { line_offset } => {
5120 (*line_offset, line_offset + 1, &layout.space_invisible)
5121 }
5122 };
5123
5124 let x_offset = self.x_for_index(token_offset);
5125 let invisible_offset =
5126 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
5127 let origin = content_origin
5128 + gpui::point(
5129 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
5130 line_y,
5131 );
5132
5133 (
5134 [token_offset, token_end_offset],
5135 Box::new(move |cx: &mut WindowContext| {
5136 invisible_symbol.paint(origin, line_height, cx).log_err();
5137 }),
5138 )
5139 };
5140
5141 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
5142 match whitespace_setting {
5143 ShowWhitespaceSetting::None => (),
5144 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
5145 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
5146 let invisible_point = DisplayPoint::new(row, start as u32);
5147 if !selection_ranges
5148 .iter()
5149 .any(|region| region.start <= invisible_point && invisible_point < region.end)
5150 {
5151 return;
5152 }
5153
5154 paint(cx);
5155 }),
5156
5157 // For a whitespace to be on a boundary, any of the following conditions need to be met:
5158 // - It is a tab
5159 // - It is adjacent to an edge (start or end)
5160 // - It is adjacent to a whitespace (left or right)
5161 ShowWhitespaceSetting::Boundary => {
5162 // 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
5163 // the above cases.
5164 // Note: We zip in the original `invisibles` to check for tab equality
5165 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut WindowContext)>)> = None;
5166 for (([start, end], paint), invisible) in
5167 invisible_iter.zip_eq(self.invisibles.iter())
5168 {
5169 let should_render = match (&last_seen, invisible) {
5170 (_, Invisible::Tab { .. }) => true,
5171 (Some((_, last_end, _)), _) => *last_end == start,
5172 _ => false,
5173 };
5174
5175 if should_render || start == 0 || end == self.len {
5176 paint(cx);
5177
5178 // Since we are scanning from the left, we will skip over the first available whitespace that is part
5179 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
5180 if let Some((should_render_last, last_end, paint_last)) = last_seen {
5181 // Note that we need to make sure that the last one is actually adjacent
5182 if !should_render_last && last_end == start {
5183 paint_last(cx);
5184 }
5185 }
5186 }
5187
5188 // Manually render anything within a selection
5189 let invisible_point = DisplayPoint::new(row, start as u32);
5190 if selection_ranges.iter().any(|region| {
5191 region.start <= invisible_point && invisible_point < region.end
5192 }) {
5193 paint(cx);
5194 }
5195
5196 last_seen = Some((should_render, end, paint));
5197 }
5198 }
5199 }
5200 }
5201
5202 pub fn x_for_index(&self, index: usize) -> Pixels {
5203 let mut fragment_start_x = Pixels::ZERO;
5204 let mut fragment_start_index = 0;
5205
5206 for fragment in &self.fragments {
5207 match fragment {
5208 LineFragment::Text(shaped_line) => {
5209 let fragment_end_index = fragment_start_index + shaped_line.len;
5210 if index < fragment_end_index {
5211 return fragment_start_x
5212 + shaped_line.x_for_index(index - fragment_start_index);
5213 }
5214 fragment_start_x += shaped_line.width;
5215 fragment_start_index = fragment_end_index;
5216 }
5217 LineFragment::Element { len, size, .. } => {
5218 let fragment_end_index = fragment_start_index + len;
5219 if index < fragment_end_index {
5220 return fragment_start_x;
5221 }
5222 fragment_start_x += size.width;
5223 fragment_start_index = fragment_end_index;
5224 }
5225 }
5226 }
5227
5228 fragment_start_x
5229 }
5230
5231 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
5232 let mut fragment_start_x = Pixels::ZERO;
5233 let mut fragment_start_index = 0;
5234
5235 for fragment in &self.fragments {
5236 match fragment {
5237 LineFragment::Text(shaped_line) => {
5238 let fragment_end_x = fragment_start_x + shaped_line.width;
5239 if x < fragment_end_x {
5240 return Some(
5241 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
5242 );
5243 }
5244 fragment_start_x = fragment_end_x;
5245 fragment_start_index += shaped_line.len;
5246 }
5247 LineFragment::Element { len, size, .. } => {
5248 let fragment_end_x = fragment_start_x + size.width;
5249 if x < fragment_end_x {
5250 return Some(fragment_start_index);
5251 }
5252 fragment_start_index += len;
5253 fragment_start_x = fragment_end_x;
5254 }
5255 }
5256 }
5257
5258 None
5259 }
5260
5261 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
5262 let mut fragment_start_index = 0;
5263
5264 for fragment in &self.fragments {
5265 match fragment {
5266 LineFragment::Text(shaped_line) => {
5267 let fragment_end_index = fragment_start_index + shaped_line.len;
5268 if index < fragment_end_index {
5269 return shaped_line.font_id_for_index(index - fragment_start_index);
5270 }
5271 fragment_start_index = fragment_end_index;
5272 }
5273 LineFragment::Element { len, .. } => {
5274 let fragment_end_index = fragment_start_index + len;
5275 if index < fragment_end_index {
5276 return None;
5277 }
5278 fragment_start_index = fragment_end_index;
5279 }
5280 }
5281 }
5282
5283 None
5284 }
5285}
5286
5287#[derive(Debug, Clone, Copy, PartialEq, Eq)]
5288enum Invisible {
5289 /// A tab character
5290 ///
5291 /// A tab character is internally represented by spaces (configured by the user's tab width)
5292 /// aligned to the nearest column, so it's necessary to store the start and end offset for
5293 /// adjacency checks.
5294 Tab {
5295 line_start_offset: usize,
5296 line_end_offset: usize,
5297 },
5298 Whitespace {
5299 line_offset: usize,
5300 },
5301}
5302
5303impl EditorElement {
5304 /// Returns the rem size to use when rendering the [`EditorElement`].
5305 ///
5306 /// This allows UI elements to scale based on the `buffer_font_size`.
5307 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
5308 match self.editor.read(cx).mode {
5309 EditorMode::Full => {
5310 let buffer_font_size = self.style.text.font_size;
5311 match buffer_font_size {
5312 AbsoluteLength::Pixels(pixels) => {
5313 let rem_size_scale = {
5314 // Our default UI font size is 14px on a 16px base scale.
5315 // This means the default UI font size is 0.875rems.
5316 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
5317
5318 // We then determine the delta between a single rem and the default font
5319 // size scale.
5320 let default_font_size_delta = 1. - default_font_size_scale;
5321
5322 // Finally, we add this delta to 1rem to get the scale factor that
5323 // should be used to scale up the UI.
5324 1. + default_font_size_delta
5325 };
5326
5327 Some(pixels * rem_size_scale)
5328 }
5329 AbsoluteLength::Rems(rems) => {
5330 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
5331 }
5332 }
5333 }
5334 // We currently use single-line and auto-height editors in UI contexts,
5335 // so we don't want to scale everything with the buffer font size, as it
5336 // ends up looking off.
5337 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
5338 }
5339 }
5340}
5341
5342impl Element for EditorElement {
5343 type RequestLayoutState = ();
5344 type PrepaintState = EditorLayout;
5345
5346 fn id(&self) -> Option<ElementId> {
5347 None
5348 }
5349
5350 fn request_layout(
5351 &mut self,
5352 _: Option<&GlobalElementId>,
5353 cx: &mut WindowContext,
5354 ) -> (gpui::LayoutId, ()) {
5355 let rem_size = self.rem_size(cx);
5356 cx.with_rem_size(rem_size, |cx| {
5357 self.editor.update(cx, |editor, cx| {
5358 editor.set_style(self.style.clone(), cx);
5359
5360 let layout_id = match editor.mode {
5361 EditorMode::SingleLine { auto_width } => {
5362 let rem_size = cx.rem_size();
5363
5364 let height = self.style.text.line_height_in_pixels(rem_size);
5365 if auto_width {
5366 let editor_handle = cx.view().clone();
5367 let style = self.style.clone();
5368 cx.request_measured_layout(Style::default(), move |_, _, cx| {
5369 let editor_snapshot =
5370 editor_handle.update(cx, |editor, cx| editor.snapshot(cx));
5371 let line = Self::layout_lines(
5372 DisplayRow(0)..DisplayRow(1),
5373 &editor_snapshot,
5374 &style,
5375 px(f32::MAX),
5376 |_| false, // Single lines never soft wrap
5377 cx,
5378 )
5379 .pop()
5380 .unwrap();
5381
5382 let font_id = cx.text_system().resolve_font(&style.text.font());
5383 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5384 let em_width = cx
5385 .text_system()
5386 .typographic_bounds(font_id, font_size, 'm')
5387 .unwrap()
5388 .size
5389 .width;
5390
5391 size(line.width + em_width, height)
5392 })
5393 } else {
5394 let mut style = Style::default();
5395 style.size.height = height.into();
5396 style.size.width = relative(1.).into();
5397 cx.request_layout(style, None)
5398 }
5399 }
5400 EditorMode::AutoHeight { max_lines } => {
5401 let editor_handle = cx.view().clone();
5402 let max_line_number_width =
5403 self.max_line_number_width(&editor.snapshot(cx), cx);
5404 cx.request_measured_layout(
5405 Style::default(),
5406 move |known_dimensions, available_space, cx| {
5407 editor_handle
5408 .update(cx, |editor, cx| {
5409 compute_auto_height_layout(
5410 editor,
5411 max_lines,
5412 max_line_number_width,
5413 known_dimensions,
5414 available_space.width,
5415 cx,
5416 )
5417 })
5418 .unwrap_or_default()
5419 },
5420 )
5421 }
5422 EditorMode::Full => {
5423 let mut style = Style::default();
5424 style.size.width = relative(1.).into();
5425 style.size.height = relative(1.).into();
5426 cx.request_layout(style, None)
5427 }
5428 };
5429
5430 (layout_id, ())
5431 })
5432 })
5433 }
5434
5435 fn prepaint(
5436 &mut self,
5437 _: Option<&GlobalElementId>,
5438 bounds: Bounds<Pixels>,
5439 _: &mut Self::RequestLayoutState,
5440 cx: &mut WindowContext,
5441 ) -> Self::PrepaintState {
5442 let text_style = TextStyleRefinement {
5443 font_size: Some(self.style.text.font_size),
5444 line_height: Some(self.style.text.line_height),
5445 ..Default::default()
5446 };
5447 let focus_handle = self.editor.focus_handle(cx);
5448 cx.set_view_id(self.editor.entity_id());
5449 cx.set_focus_handle(&focus_handle);
5450
5451 let rem_size = self.rem_size(cx);
5452 cx.with_rem_size(rem_size, |cx| {
5453 cx.with_text_style(Some(text_style), |cx| {
5454 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
5455 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
5456 let style = self.style.clone();
5457
5458 let font_id = cx.text_system().resolve_font(&style.text.font());
5459 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5460 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5461 let em_width = cx
5462 .text_system()
5463 .typographic_bounds(font_id, font_size, 'm')
5464 .unwrap()
5465 .size
5466 .width;
5467 let em_advance = cx
5468 .text_system()
5469 .advance(font_id, font_size, 'm')
5470 .unwrap()
5471 .width;
5472
5473 let gutter_dimensions = snapshot.gutter_dimensions(
5474 font_id,
5475 font_size,
5476 em_width,
5477 em_advance,
5478 self.max_line_number_width(&snapshot, cx),
5479 cx,
5480 );
5481 let text_width = bounds.size.width - gutter_dimensions.width;
5482
5483 let right_margin = if snapshot.mode == EditorMode::Full {
5484 EditorElement::SCROLLBAR_WIDTH
5485 } else {
5486 px(0.)
5487 };
5488 let overscroll = size(em_width + right_margin, px(0.));
5489
5490 let editor_width =
5491 text_width - gutter_dimensions.margin - overscroll.width - em_width;
5492
5493 snapshot = self.editor.update(cx, |editor, cx| {
5494 editor.last_bounds = Some(bounds);
5495 editor.gutter_dimensions = gutter_dimensions;
5496 editor.set_visible_line_count(bounds.size.height / line_height, cx);
5497
5498 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
5499 snapshot
5500 } else {
5501 let wrap_width = match editor.soft_wrap_mode(cx) {
5502 SoftWrap::GitDiff => None,
5503 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
5504 SoftWrap::EditorWidth => Some(editor_width),
5505 SoftWrap::Column(column) => Some(column as f32 * em_advance),
5506 SoftWrap::Bounded(column) => {
5507 Some(editor_width.min(column as f32 * em_advance))
5508 }
5509 };
5510
5511 if editor.set_wrap_width(wrap_width, cx) {
5512 editor.snapshot(cx)
5513 } else {
5514 snapshot
5515 }
5516 }
5517 });
5518
5519 let wrap_guides = self
5520 .editor
5521 .read(cx)
5522 .wrap_guides(cx)
5523 .iter()
5524 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
5525 .collect::<SmallVec<[_; 2]>>();
5526
5527 let hitbox = cx.insert_hitbox(bounds, false);
5528 let gutter_hitbox =
5529 cx.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
5530 let text_hitbox = cx.insert_hitbox(
5531 Bounds {
5532 origin: gutter_hitbox.top_right(),
5533 size: size(text_width, bounds.size.height),
5534 },
5535 false,
5536 );
5537 // Offset the content_bounds from the text_bounds by the gutter margin (which
5538 // is roughly half a character wide) to make hit testing work more like how we want.
5539 let content_origin =
5540 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
5541
5542 let height_in_lines = bounds.size.height / line_height;
5543 let max_row = snapshot.max_point().row().as_f32();
5544 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
5545 (max_row - height_in_lines + 1.).max(0.)
5546 } else {
5547 let settings = EditorSettings::get_global(cx);
5548 match settings.scroll_beyond_last_line {
5549 ScrollBeyondLastLine::OnePage => max_row,
5550 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
5551 ScrollBeyondLastLine::VerticalScrollMargin => {
5552 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
5553 .max(0.)
5554 }
5555 }
5556 };
5557
5558 let mut autoscroll_request = None;
5559 let mut autoscroll_containing_element = false;
5560 let mut autoscroll_horizontally = false;
5561 self.editor.update(cx, |editor, cx| {
5562 autoscroll_request = editor.autoscroll_request();
5563 autoscroll_containing_element =
5564 autoscroll_request.is_some() || editor.has_pending_selection();
5565 autoscroll_horizontally =
5566 editor.autoscroll_vertically(bounds, line_height, max_scroll_top, cx);
5567 snapshot = editor.snapshot(cx);
5568 });
5569
5570 let mut scroll_position = snapshot.scroll_position();
5571 // The scroll position is a fractional point, the whole number of which represents
5572 // the top of the window in terms of display rows.
5573 let start_row = DisplayRow(scroll_position.y as u32);
5574 let max_row = snapshot.max_point().row();
5575 let end_row = cmp::min(
5576 (scroll_position.y + height_in_lines).ceil() as u32,
5577 max_row.next_row().0,
5578 );
5579 let end_row = DisplayRow(end_row);
5580
5581 let buffer_rows = snapshot
5582 .buffer_rows(start_row)
5583 .take((start_row..end_row).len())
5584 .collect::<Vec<_>>();
5585 let is_row_soft_wrapped =
5586 |row| buffer_rows.get(row).copied().flatten().is_none();
5587
5588 let start_anchor = if start_row == Default::default() {
5589 Anchor::min()
5590 } else {
5591 snapshot.buffer_snapshot.anchor_before(
5592 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
5593 )
5594 };
5595 let end_anchor = if end_row > max_row {
5596 Anchor::max()
5597 } else {
5598 snapshot.buffer_snapshot.anchor_before(
5599 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
5600 )
5601 };
5602
5603 let highlighted_rows = self
5604 .editor
5605 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
5606 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
5607 start_anchor..end_anchor,
5608 &snapshot.display_snapshot,
5609 cx.theme().colors(),
5610 );
5611 let highlighted_gutter_ranges =
5612 self.editor.read(cx).gutter_highlights_in_range(
5613 start_anchor..end_anchor,
5614 &snapshot.display_snapshot,
5615 cx,
5616 );
5617
5618 let redacted_ranges = self.editor.read(cx).redacted_ranges(
5619 start_anchor..end_anchor,
5620 &snapshot.display_snapshot,
5621 cx,
5622 );
5623
5624 let local_selections: Vec<Selection<Point>> =
5625 self.editor.update(cx, |editor, cx| {
5626 let mut selections = editor
5627 .selections
5628 .disjoint_in_range(start_anchor..end_anchor, cx);
5629 selections.extend(editor.selections.pending(cx));
5630 selections
5631 });
5632
5633 let (selections, active_rows, newest_selection_head) = self.layout_selections(
5634 start_anchor,
5635 end_anchor,
5636 &local_selections,
5637 &snapshot,
5638 start_row,
5639 end_row,
5640 cx,
5641 );
5642
5643 let line_numbers = self.layout_line_numbers(
5644 start_row..end_row,
5645 buffer_rows.iter().copied(),
5646 &active_rows,
5647 newest_selection_head,
5648 &snapshot,
5649 cx,
5650 );
5651
5652 let mut crease_toggles = cx.with_element_namespace("crease_toggles", |cx| {
5653 self.layout_crease_toggles(
5654 start_row..end_row,
5655 buffer_rows.iter().copied(),
5656 &active_rows,
5657 &snapshot,
5658 cx,
5659 )
5660 });
5661 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5662 self.layout_crease_trailers(buffer_rows.iter().copied(), &snapshot, cx)
5663 });
5664
5665 let display_hunks = self.layout_gutter_git_hunks(
5666 line_height,
5667 &gutter_hitbox,
5668 start_row..end_row,
5669 start_anchor..end_anchor,
5670 &snapshot,
5671 cx,
5672 );
5673
5674 let mut max_visible_line_width = Pixels::ZERO;
5675 let mut line_layouts = Self::layout_lines(
5676 start_row..end_row,
5677 &snapshot,
5678 &self.style,
5679 editor_width,
5680 is_row_soft_wrapped,
5681 cx,
5682 );
5683 for line_with_invisibles in &line_layouts {
5684 if line_with_invisibles.width > max_visible_line_width {
5685 max_visible_line_width = line_with_invisibles.width;
5686 }
5687 }
5688
5689 let longest_line_width = layout_line(
5690 snapshot.longest_row(),
5691 &snapshot,
5692 &style,
5693 editor_width,
5694 is_row_soft_wrapped,
5695 cx,
5696 )
5697 .width;
5698 let mut scroll_width =
5699 longest_line_width.max(max_visible_line_width) + overscroll.width;
5700
5701 let blocks = cx.with_element_namespace("blocks", |cx| {
5702 self.render_blocks(
5703 start_row..end_row,
5704 &snapshot,
5705 &hitbox,
5706 &text_hitbox,
5707 editor_width,
5708 &mut scroll_width,
5709 &gutter_dimensions,
5710 em_width,
5711 gutter_dimensions.full_width(),
5712 line_height,
5713 &line_layouts,
5714 &local_selections,
5715 is_row_soft_wrapped,
5716 cx,
5717 )
5718 });
5719 let mut blocks = match blocks {
5720 Ok(blocks) => blocks,
5721 Err(resized_blocks) => {
5722 self.editor.update(cx, |editor, cx| {
5723 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
5724 });
5725 return self.prepaint(None, bounds, &mut (), cx);
5726 }
5727 };
5728
5729 let start_buffer_row =
5730 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
5731 let end_buffer_row =
5732 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
5733
5734 let scroll_max = point(
5735 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5736 max_row.as_f32(),
5737 );
5738
5739 self.editor.update(cx, |editor, cx| {
5740 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5741
5742 let autoscrolled = if autoscroll_horizontally {
5743 editor.autoscroll_horizontally(
5744 start_row,
5745 text_hitbox.size.width,
5746 scroll_width,
5747 em_width,
5748 &line_layouts,
5749 cx,
5750 )
5751 } else {
5752 false
5753 };
5754
5755 if clamped || autoscrolled {
5756 snapshot = editor.snapshot(cx);
5757 scroll_position = snapshot.scroll_position();
5758 }
5759 });
5760
5761 let scroll_pixel_position = point(
5762 scroll_position.x * em_width,
5763 scroll_position.y * line_height,
5764 );
5765
5766 let indent_guides = self.layout_indent_guides(
5767 content_origin,
5768 text_hitbox.origin,
5769 start_buffer_row..end_buffer_row,
5770 scroll_pixel_position,
5771 line_height,
5772 &snapshot,
5773 cx,
5774 );
5775
5776 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5777 self.prepaint_crease_trailers(
5778 crease_trailers,
5779 &line_layouts,
5780 line_height,
5781 content_origin,
5782 scroll_pixel_position,
5783 em_width,
5784 cx,
5785 )
5786 });
5787
5788 let mut inline_blame = None;
5789 if let Some(newest_selection_head) = newest_selection_head {
5790 let display_row = newest_selection_head.row();
5791 if (start_row..end_row).contains(&display_row) {
5792 let line_ix = display_row.minus(start_row) as usize;
5793 let line_layout = &line_layouts[line_ix];
5794 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
5795 inline_blame = self.layout_inline_blame(
5796 display_row,
5797 &snapshot.display_snapshot,
5798 line_layout,
5799 crease_trailer_layout,
5800 em_width,
5801 content_origin,
5802 scroll_pixel_position,
5803 line_height,
5804 cx,
5805 );
5806 }
5807 }
5808
5809 let blamed_display_rows = self.layout_blame_entries(
5810 buffer_rows.into_iter(),
5811 em_width,
5812 scroll_position,
5813 line_height,
5814 &gutter_hitbox,
5815 gutter_dimensions.git_blame_entries_width,
5816 cx,
5817 );
5818
5819 let scroll_max = point(
5820 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5821 max_scroll_top,
5822 );
5823
5824 self.editor.update(cx, |editor, cx| {
5825 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5826
5827 let autoscrolled = if autoscroll_horizontally {
5828 editor.autoscroll_horizontally(
5829 start_row,
5830 text_hitbox.size.width,
5831 scroll_width,
5832 em_width,
5833 &line_layouts,
5834 cx,
5835 )
5836 } else {
5837 false
5838 };
5839
5840 if clamped || autoscrolled {
5841 snapshot = editor.snapshot(cx);
5842 scroll_position = snapshot.scroll_position();
5843 }
5844 });
5845
5846 let line_elements = self.prepaint_lines(
5847 start_row,
5848 &mut line_layouts,
5849 line_height,
5850 scroll_pixel_position,
5851 content_origin,
5852 cx,
5853 );
5854
5855 let mut block_start_rows = HashSet::default();
5856 cx.with_element_namespace("blocks", |cx| {
5857 self.layout_blocks(
5858 &mut blocks,
5859 &mut block_start_rows,
5860 &hitbox,
5861 line_height,
5862 scroll_pixel_position,
5863 cx,
5864 );
5865 });
5866
5867 let cursors = self.collect_cursors(&snapshot, cx);
5868 let visible_row_range = start_row..end_row;
5869 let non_visible_cursors = cursors
5870 .iter()
5871 .any(move |c| !visible_row_range.contains(&c.0.row()));
5872
5873 let visible_cursors = self.layout_visible_cursors(
5874 &snapshot,
5875 &selections,
5876 &block_start_rows,
5877 start_row..end_row,
5878 &line_layouts,
5879 &text_hitbox,
5880 content_origin,
5881 scroll_position,
5882 scroll_pixel_position,
5883 line_height,
5884 em_width,
5885 autoscroll_containing_element,
5886 cx,
5887 );
5888
5889 let scrollbar_layout = self.layout_scrollbar(
5890 &snapshot,
5891 bounds,
5892 scroll_position,
5893 height_in_lines,
5894 non_visible_cursors,
5895 cx,
5896 );
5897
5898 let gutter_settings = EditorSettings::get_global(cx).gutter;
5899
5900 let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
5901 editor
5902 .diff_map
5903 .hunks(false)
5904 .filter(|hunk| hunk.status == DiffHunkStatus::Added)
5905 .map(|expanded_hunk| {
5906 let start_row = expanded_hunk
5907 .hunk_range
5908 .start
5909 .to_display_point(&snapshot)
5910 .row();
5911 (start_row, expanded_hunk.clone())
5912 })
5913 .collect::<HashMap<_, _>>()
5914 });
5915
5916 let rows_with_hunk_bounds = display_hunks
5917 .iter()
5918 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
5919 .fold(
5920 HashMap::default(),
5921 |mut rows_with_hunk_bounds, (hunk, bounds)| {
5922 match hunk {
5923 DisplayDiffHunk::Folded { display_row } => {
5924 rows_with_hunk_bounds.insert(*display_row, bounds);
5925 }
5926 DisplayDiffHunk::Unfolded {
5927 display_row_range, ..
5928 } => {
5929 for display_row in display_row_range.iter_rows() {
5930 rows_with_hunk_bounds.insert(display_row, bounds);
5931 }
5932 }
5933 }
5934 rows_with_hunk_bounds
5935 },
5936 );
5937 let mut code_actions_indicator = None;
5938 if let Some(newest_selection_head) = newest_selection_head {
5939 if (start_row..end_row).contains(&newest_selection_head.row()) {
5940 self.layout_context_menu(
5941 line_height,
5942 &text_hitbox,
5943 content_origin,
5944 start_row,
5945 scroll_pixel_position,
5946 &line_layouts,
5947 newest_selection_head,
5948 gutter_dimensions.width - gutter_dimensions.left_padding,
5949 cx,
5950 );
5951
5952 let show_code_actions = snapshot
5953 .show_code_actions
5954 .unwrap_or(gutter_settings.code_actions);
5955 if show_code_actions {
5956 let newest_selection_point =
5957 newest_selection_head.to_point(&snapshot.display_snapshot);
5958 let newest_selection_display_row =
5959 newest_selection_point.to_display_point(&snapshot).row();
5960 if !expanded_add_hunks_by_rows
5961 .contains_key(&newest_selection_display_row)
5962 {
5963 if !snapshot
5964 .is_line_folded(MultiBufferRow(newest_selection_point.row))
5965 {
5966 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
5967 MultiBufferRow(newest_selection_point.row),
5968 );
5969 if let Some((buffer, range)) = buffer {
5970 let buffer_id = buffer.remote_id();
5971 let row = range.start.row;
5972 let has_test_indicator = self
5973 .editor
5974 .read(cx)
5975 .tasks
5976 .contains_key(&(buffer_id, row));
5977
5978 if !has_test_indicator {
5979 code_actions_indicator = self
5980 .layout_code_actions_indicator(
5981 line_height,
5982 newest_selection_head,
5983 scroll_pixel_position,
5984 &gutter_dimensions,
5985 &gutter_hitbox,
5986 &rows_with_hunk_bounds,
5987 cx,
5988 );
5989 }
5990 }
5991 }
5992 }
5993 }
5994 }
5995 }
5996
5997 let test_indicators = if gutter_settings.runnables {
5998 self.layout_run_indicators(
5999 line_height,
6000 start_row..end_row,
6001 scroll_pixel_position,
6002 &gutter_dimensions,
6003 &gutter_hitbox,
6004 &rows_with_hunk_bounds,
6005 &snapshot,
6006 cx,
6007 )
6008 } else {
6009 Vec::new()
6010 };
6011
6012 self.layout_signature_help(
6013 &hitbox,
6014 content_origin,
6015 scroll_pixel_position,
6016 newest_selection_head,
6017 start_row,
6018 &line_layouts,
6019 line_height,
6020 em_width,
6021 cx,
6022 );
6023
6024 if !cx.has_active_drag() {
6025 self.layout_hover_popovers(
6026 &snapshot,
6027 &hitbox,
6028 &text_hitbox,
6029 start_row..end_row,
6030 content_origin,
6031 scroll_pixel_position,
6032 &line_layouts,
6033 line_height,
6034 em_width,
6035 cx,
6036 );
6037 }
6038
6039 let inline_completion_popover = self.layout_inline_completion_popover(
6040 &text_hitbox.bounds,
6041 &snapshot,
6042 start_row..end_row,
6043 scroll_position.y,
6044 scroll_position.y + height_in_lines,
6045 &line_layouts,
6046 line_height,
6047 scroll_pixel_position,
6048 editor_width,
6049 &style,
6050 cx,
6051 );
6052
6053 let mouse_context_menu = self.layout_mouse_context_menu(
6054 &snapshot,
6055 start_row..end_row,
6056 content_origin,
6057 cx,
6058 );
6059
6060 cx.with_element_namespace("crease_toggles", |cx| {
6061 self.prepaint_crease_toggles(
6062 &mut crease_toggles,
6063 line_height,
6064 &gutter_dimensions,
6065 gutter_settings,
6066 scroll_pixel_position,
6067 &gutter_hitbox,
6068 cx,
6069 )
6070 });
6071
6072 let invisible_symbol_font_size = font_size / 2.;
6073 let tab_invisible = cx
6074 .text_system()
6075 .shape_line(
6076 "→".into(),
6077 invisible_symbol_font_size,
6078 &[TextRun {
6079 len: "→".len(),
6080 font: self.style.text.font(),
6081 color: cx.theme().colors().editor_invisible,
6082 background_color: None,
6083 underline: None,
6084 strikethrough: None,
6085 }],
6086 )
6087 .unwrap();
6088 let space_invisible = cx
6089 .text_system()
6090 .shape_line(
6091 "•".into(),
6092 invisible_symbol_font_size,
6093 &[TextRun {
6094 len: "•".len(),
6095 font: self.style.text.font(),
6096 color: cx.theme().colors().editor_invisible,
6097 background_color: None,
6098 underline: None,
6099 strikethrough: None,
6100 }],
6101 )
6102 .unwrap();
6103
6104 EditorLayout {
6105 mode: snapshot.mode,
6106 position_map: Rc::new(PositionMap {
6107 size: bounds.size,
6108 scroll_pixel_position,
6109 scroll_max,
6110 line_layouts,
6111 line_height,
6112 em_width,
6113 em_advance,
6114 snapshot,
6115 }),
6116 visible_display_row_range: start_row..end_row,
6117 wrap_guides,
6118 indent_guides,
6119 hitbox,
6120 text_hitbox,
6121 gutter_hitbox,
6122 gutter_dimensions,
6123 display_hunks,
6124 content_origin,
6125 scrollbar_layout,
6126 active_rows,
6127 highlighted_rows,
6128 highlighted_ranges,
6129 highlighted_gutter_ranges,
6130 redacted_ranges,
6131 line_elements,
6132 line_numbers,
6133 blamed_display_rows,
6134 inline_blame,
6135 blocks,
6136 cursors,
6137 visible_cursors,
6138 selections,
6139 inline_completion_popover,
6140 mouse_context_menu,
6141 test_indicators,
6142 code_actions_indicator,
6143 crease_toggles,
6144 crease_trailers,
6145 tab_invisible,
6146 space_invisible,
6147 }
6148 })
6149 })
6150 })
6151 }
6152
6153 fn paint(
6154 &mut self,
6155 _: Option<&GlobalElementId>,
6156 bounds: Bounds<gpui::Pixels>,
6157 _: &mut Self::RequestLayoutState,
6158 layout: &mut Self::PrepaintState,
6159 cx: &mut WindowContext,
6160 ) {
6161 let focus_handle = self.editor.focus_handle(cx);
6162 let key_context = self.editor.update(cx, |editor, cx| editor.key_context(cx));
6163 cx.set_key_context(key_context);
6164 cx.handle_input(
6165 &focus_handle,
6166 ElementInputHandler::new(bounds, self.editor.clone()),
6167 );
6168 self.register_actions(cx);
6169 self.register_key_listeners(cx, layout);
6170
6171 let text_style = TextStyleRefinement {
6172 font_size: Some(self.style.text.font_size),
6173 line_height: Some(self.style.text.line_height),
6174 ..Default::default()
6175 };
6176 let hovered_hunk = layout
6177 .display_hunks
6178 .iter()
6179 .find_map(|(hunk, hunk_hitbox)| match hunk {
6180 DisplayDiffHunk::Folded { .. } => None,
6181 DisplayDiffHunk::Unfolded {
6182 diff_base_byte_range,
6183 multi_buffer_range,
6184 status,
6185 ..
6186 } => {
6187 if hunk_hitbox
6188 .as_ref()
6189 .map(|hitbox| hitbox.is_hovered(cx))
6190 .unwrap_or(false)
6191 {
6192 Some(HoveredHunk {
6193 status: *status,
6194 multi_buffer_range: multi_buffer_range.clone(),
6195 diff_base_byte_range: diff_base_byte_range.clone(),
6196 })
6197 } else {
6198 None
6199 }
6200 }
6201 });
6202 let rem_size = self.rem_size(cx);
6203 cx.with_rem_size(rem_size, |cx| {
6204 cx.with_text_style(Some(text_style), |cx| {
6205 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6206 self.paint_mouse_listeners(layout, hovered_hunk, cx);
6207 self.paint_background(layout, cx);
6208 self.paint_indent_guides(layout, cx);
6209
6210 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6211 self.paint_blamed_display_rows(layout, cx);
6212 self.paint_line_numbers(layout, cx);
6213 }
6214
6215 self.paint_text(layout, cx);
6216
6217 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6218 self.paint_gutter_highlights(layout, cx);
6219 self.paint_gutter_indicators(layout, cx);
6220 }
6221
6222 if !layout.blocks.is_empty() {
6223 cx.with_element_namespace("blocks", |cx| {
6224 self.paint_blocks(layout, cx);
6225 });
6226 }
6227
6228 self.paint_scrollbar(layout, cx);
6229 self.paint_inline_completion_popover(layout, cx);
6230 self.paint_mouse_context_menu(layout, cx);
6231 });
6232 })
6233 })
6234 }
6235}
6236
6237pub(super) fn gutter_bounds(
6238 editor_bounds: Bounds<Pixels>,
6239 gutter_dimensions: GutterDimensions,
6240) -> Bounds<Pixels> {
6241 Bounds {
6242 origin: editor_bounds.origin,
6243 size: size(gutter_dimensions.width, editor_bounds.size.height),
6244 }
6245}
6246
6247impl IntoElement for EditorElement {
6248 type Element = Self;
6249
6250 fn into_element(self) -> Self::Element {
6251 self
6252 }
6253}
6254
6255pub struct EditorLayout {
6256 position_map: Rc<PositionMap>,
6257 hitbox: Hitbox,
6258 text_hitbox: Hitbox,
6259 gutter_hitbox: Hitbox,
6260 gutter_dimensions: GutterDimensions,
6261 content_origin: gpui::Point<Pixels>,
6262 scrollbar_layout: Option<ScrollbarLayout>,
6263 mode: EditorMode,
6264 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
6265 indent_guides: Option<Vec<IndentGuideLayout>>,
6266 visible_display_row_range: Range<DisplayRow>,
6267 active_rows: BTreeMap<DisplayRow, bool>,
6268 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
6269 line_elements: SmallVec<[AnyElement; 1]>,
6270 line_numbers: Vec<Option<ShapedLine>>,
6271 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
6272 blamed_display_rows: Option<Vec<AnyElement>>,
6273 inline_blame: Option<AnyElement>,
6274 blocks: Vec<BlockLayout>,
6275 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
6276 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
6277 redacted_ranges: Vec<Range<DisplayPoint>>,
6278 cursors: Vec<(DisplayPoint, Hsla)>,
6279 visible_cursors: Vec<CursorLayout>,
6280 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
6281 code_actions_indicator: Option<AnyElement>,
6282 test_indicators: Vec<AnyElement>,
6283 crease_toggles: Vec<Option<AnyElement>>,
6284 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
6285 inline_completion_popover: Option<AnyElement>,
6286 mouse_context_menu: Option<AnyElement>,
6287 tab_invisible: ShapedLine,
6288 space_invisible: ShapedLine,
6289}
6290
6291impl EditorLayout {
6292 fn line_end_overshoot(&self) -> Pixels {
6293 0.15 * self.position_map.line_height
6294 }
6295}
6296
6297struct ColoredRange<T> {
6298 start: T,
6299 end: T,
6300 color: Hsla,
6301}
6302
6303#[derive(Clone)]
6304struct ScrollbarLayout {
6305 hitbox: Hitbox,
6306 visible_row_range: Range<f32>,
6307 visible: bool,
6308 row_height: Pixels,
6309 thumb_height: Pixels,
6310}
6311
6312impl ScrollbarLayout {
6313 const BORDER_WIDTH: Pixels = px(1.0);
6314 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
6315 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
6316 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
6317
6318 fn thumb_bounds(&self) -> Bounds<Pixels> {
6319 let thumb_top = self.y_for_row(self.visible_row_range.start);
6320 let thumb_bottom = thumb_top + self.thumb_height;
6321 Bounds::from_corners(
6322 point(self.hitbox.left(), thumb_top),
6323 point(self.hitbox.right(), thumb_bottom),
6324 )
6325 }
6326
6327 fn y_for_row(&self, row: f32) -> Pixels {
6328 self.hitbox.top() + row * self.row_height
6329 }
6330
6331 fn marker_quads_for_ranges(
6332 &self,
6333 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
6334 column: Option<usize>,
6335 ) -> Vec<PaintQuad> {
6336 struct MinMax {
6337 min: Pixels,
6338 max: Pixels,
6339 }
6340 let (x_range, height_limit) = if let Some(column) = column {
6341 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
6342 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
6343 let end = start + column_width;
6344 (
6345 Range { start, end },
6346 MinMax {
6347 min: Self::MIN_MARKER_HEIGHT,
6348 max: px(f32::MAX),
6349 },
6350 )
6351 } else {
6352 (
6353 Range {
6354 start: Self::BORDER_WIDTH,
6355 end: self.hitbox.size.width,
6356 },
6357 MinMax {
6358 min: Self::LINE_MARKER_HEIGHT,
6359 max: Self::LINE_MARKER_HEIGHT,
6360 },
6361 )
6362 };
6363
6364 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
6365 let mut pixel_ranges = row_ranges
6366 .into_iter()
6367 .map(|range| {
6368 let start_y = row_to_y(range.start);
6369 let end_y = row_to_y(range.end)
6370 + self.row_height.max(height_limit.min).min(height_limit.max);
6371 ColoredRange {
6372 start: start_y,
6373 end: end_y,
6374 color: range.color,
6375 }
6376 })
6377 .peekable();
6378
6379 let mut quads = Vec::new();
6380 while let Some(mut pixel_range) = pixel_ranges.next() {
6381 while let Some(next_pixel_range) = pixel_ranges.peek() {
6382 if pixel_range.end >= next_pixel_range.start - px(1.0)
6383 && pixel_range.color == next_pixel_range.color
6384 {
6385 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
6386 pixel_ranges.next();
6387 } else {
6388 break;
6389 }
6390 }
6391
6392 let bounds = Bounds::from_corners(
6393 point(x_range.start, pixel_range.start),
6394 point(x_range.end, pixel_range.end),
6395 );
6396 quads.push(quad(
6397 bounds,
6398 Corners::default(),
6399 pixel_range.color,
6400 Edges::default(),
6401 Hsla::transparent_black(),
6402 ));
6403 }
6404
6405 quads
6406 }
6407}
6408
6409struct CreaseTrailerLayout {
6410 element: AnyElement,
6411 bounds: Bounds<Pixels>,
6412}
6413
6414struct PositionMap {
6415 size: Size<Pixels>,
6416 line_height: Pixels,
6417 scroll_pixel_position: gpui::Point<Pixels>,
6418 scroll_max: gpui::Point<f32>,
6419 em_width: Pixels,
6420 em_advance: Pixels,
6421 line_layouts: Vec<LineWithInvisibles>,
6422 snapshot: EditorSnapshot,
6423}
6424
6425#[derive(Debug, Copy, Clone)]
6426pub struct PointForPosition {
6427 pub previous_valid: DisplayPoint,
6428 pub next_valid: DisplayPoint,
6429 pub exact_unclipped: DisplayPoint,
6430 pub column_overshoot_after_line_end: u32,
6431}
6432
6433impl PointForPosition {
6434 pub fn as_valid(&self) -> Option<DisplayPoint> {
6435 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
6436 Some(self.previous_valid)
6437 } else {
6438 None
6439 }
6440 }
6441}
6442
6443impl PositionMap {
6444 fn point_for_position(
6445 &self,
6446 text_bounds: Bounds<Pixels>,
6447 position: gpui::Point<Pixels>,
6448 ) -> PointForPosition {
6449 let scroll_position = self.snapshot.scroll_position();
6450 let position = position - text_bounds.origin;
6451 let y = position.y.max(px(0.)).min(self.size.height);
6452 let x = position.x + (scroll_position.x * self.em_width);
6453 let row = ((y / self.line_height) + scroll_position.y) as u32;
6454
6455 let (column, x_overshoot_after_line_end) = if let Some(line) = self
6456 .line_layouts
6457 .get(row as usize - scroll_position.y as usize)
6458 {
6459 if let Some(ix) = line.index_for_x(x) {
6460 (ix as u32, px(0.))
6461 } else {
6462 (line.len as u32, px(0.).max(x - line.width))
6463 }
6464 } else {
6465 (0, x)
6466 };
6467
6468 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
6469 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
6470 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
6471
6472 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
6473 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
6474 PointForPosition {
6475 previous_valid,
6476 next_valid,
6477 exact_unclipped,
6478 column_overshoot_after_line_end,
6479 }
6480 }
6481}
6482
6483struct BlockLayout {
6484 id: BlockId,
6485 row: Option<DisplayRow>,
6486 element: AnyElement,
6487 available_space: Size<AvailableSpace>,
6488 style: BlockStyle,
6489}
6490
6491fn layout_line(
6492 row: DisplayRow,
6493 snapshot: &EditorSnapshot,
6494 style: &EditorStyle,
6495 text_width: Pixels,
6496 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6497 cx: &mut WindowContext,
6498) -> LineWithInvisibles {
6499 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
6500 LineWithInvisibles::from_chunks(
6501 chunks,
6502 &style,
6503 MAX_LINE_LEN,
6504 1,
6505 snapshot.mode,
6506 text_width,
6507 is_row_soft_wrapped,
6508 cx,
6509 )
6510 .pop()
6511 .unwrap()
6512}
6513
6514#[derive(Debug)]
6515pub struct IndentGuideLayout {
6516 origin: gpui::Point<Pixels>,
6517 length: Pixels,
6518 single_indent_width: Pixels,
6519 depth: u32,
6520 active: bool,
6521 settings: IndentGuideSettings,
6522}
6523
6524pub struct CursorLayout {
6525 origin: gpui::Point<Pixels>,
6526 block_width: Pixels,
6527 line_height: Pixels,
6528 color: Hsla,
6529 shape: CursorShape,
6530 block_text: Option<ShapedLine>,
6531 cursor_name: Option<AnyElement>,
6532}
6533
6534#[derive(Debug)]
6535pub struct CursorName {
6536 string: SharedString,
6537 color: Hsla,
6538 is_top_row: bool,
6539}
6540
6541impl CursorLayout {
6542 pub fn new(
6543 origin: gpui::Point<Pixels>,
6544 block_width: Pixels,
6545 line_height: Pixels,
6546 color: Hsla,
6547 shape: CursorShape,
6548 block_text: Option<ShapedLine>,
6549 ) -> CursorLayout {
6550 CursorLayout {
6551 origin,
6552 block_width,
6553 line_height,
6554 color,
6555 shape,
6556 block_text,
6557 cursor_name: None,
6558 }
6559 }
6560
6561 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6562 Bounds {
6563 origin: self.origin + origin,
6564 size: size(self.block_width, self.line_height),
6565 }
6566 }
6567
6568 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6569 match self.shape {
6570 CursorShape::Bar => Bounds {
6571 origin: self.origin + origin,
6572 size: size(px(2.0), self.line_height),
6573 },
6574 CursorShape::Block | CursorShape::Hollow => Bounds {
6575 origin: self.origin + origin,
6576 size: size(self.block_width, self.line_height),
6577 },
6578 CursorShape::Underline => Bounds {
6579 origin: self.origin
6580 + origin
6581 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
6582 size: size(self.block_width, px(2.0)),
6583 },
6584 }
6585 }
6586
6587 pub fn layout(
6588 &mut self,
6589 origin: gpui::Point<Pixels>,
6590 cursor_name: Option<CursorName>,
6591 cx: &mut WindowContext,
6592 ) {
6593 if let Some(cursor_name) = cursor_name {
6594 let bounds = self.bounds(origin);
6595 let text_size = self.line_height / 1.5;
6596
6597 let name_origin = if cursor_name.is_top_row {
6598 point(bounds.right() - px(1.), bounds.top())
6599 } else {
6600 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
6601 };
6602 let mut name_element = div()
6603 .bg(self.color)
6604 .text_size(text_size)
6605 .px_0p5()
6606 .line_height(text_size + px(2.))
6607 .text_color(cursor_name.color)
6608 .child(cursor_name.string.clone())
6609 .into_any_element();
6610
6611 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), cx);
6612
6613 self.cursor_name = Some(name_element);
6614 }
6615 }
6616
6617 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
6618 let bounds = self.bounds(origin);
6619
6620 //Draw background or border quad
6621 let cursor = if matches!(self.shape, CursorShape::Hollow) {
6622 outline(bounds, self.color)
6623 } else {
6624 fill(bounds, self.color)
6625 };
6626
6627 if let Some(name) = &mut self.cursor_name {
6628 name.paint(cx);
6629 }
6630
6631 cx.paint_quad(cursor);
6632
6633 if let Some(block_text) = &self.block_text {
6634 block_text
6635 .paint(self.origin + origin, self.line_height, cx)
6636 .log_err();
6637 }
6638 }
6639
6640 pub fn shape(&self) -> CursorShape {
6641 self.shape
6642 }
6643}
6644
6645#[derive(Debug)]
6646pub struct HighlightedRange {
6647 pub start_y: Pixels,
6648 pub line_height: Pixels,
6649 pub lines: Vec<HighlightedRangeLine>,
6650 pub color: Hsla,
6651 pub corner_radius: Pixels,
6652}
6653
6654#[derive(Debug)]
6655pub struct HighlightedRangeLine {
6656 pub start_x: Pixels,
6657 pub end_x: Pixels,
6658}
6659
6660impl HighlightedRange {
6661 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
6662 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
6663 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
6664 self.paint_lines(
6665 self.start_y + self.line_height,
6666 &self.lines[1..],
6667 bounds,
6668 cx,
6669 );
6670 } else {
6671 self.paint_lines(self.start_y, &self.lines, bounds, cx);
6672 }
6673 }
6674
6675 fn paint_lines(
6676 &self,
6677 start_y: Pixels,
6678 lines: &[HighlightedRangeLine],
6679 _bounds: Bounds<Pixels>,
6680 cx: &mut WindowContext,
6681 ) {
6682 if lines.is_empty() {
6683 return;
6684 }
6685
6686 let first_line = lines.first().unwrap();
6687 let last_line = lines.last().unwrap();
6688
6689 let first_top_left = point(first_line.start_x, start_y);
6690 let first_top_right = point(first_line.end_x, start_y);
6691
6692 let curve_height = point(Pixels::ZERO, self.corner_radius);
6693 let curve_width = |start_x: Pixels, end_x: Pixels| {
6694 let max = (end_x - start_x) / 2.;
6695 let width = if max < self.corner_radius {
6696 max
6697 } else {
6698 self.corner_radius
6699 };
6700
6701 point(width, Pixels::ZERO)
6702 };
6703
6704 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
6705 let mut path = gpui::Path::new(first_top_right - top_curve_width);
6706 path.curve_to(first_top_right + curve_height, first_top_right);
6707
6708 let mut iter = lines.iter().enumerate().peekable();
6709 while let Some((ix, line)) = iter.next() {
6710 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
6711
6712 if let Some((_, next_line)) = iter.peek() {
6713 let next_top_right = point(next_line.end_x, bottom_right.y);
6714
6715 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
6716 Ordering::Equal => {
6717 path.line_to(bottom_right);
6718 }
6719 Ordering::Less => {
6720 let curve_width = curve_width(next_top_right.x, bottom_right.x);
6721 path.line_to(bottom_right - curve_height);
6722 if self.corner_radius > Pixels::ZERO {
6723 path.curve_to(bottom_right - curve_width, bottom_right);
6724 }
6725 path.line_to(next_top_right + curve_width);
6726 if self.corner_radius > Pixels::ZERO {
6727 path.curve_to(next_top_right + curve_height, next_top_right);
6728 }
6729 }
6730 Ordering::Greater => {
6731 let curve_width = curve_width(bottom_right.x, next_top_right.x);
6732 path.line_to(bottom_right - curve_height);
6733 if self.corner_radius > Pixels::ZERO {
6734 path.curve_to(bottom_right + curve_width, bottom_right);
6735 }
6736 path.line_to(next_top_right - curve_width);
6737 if self.corner_radius > Pixels::ZERO {
6738 path.curve_to(next_top_right + curve_height, next_top_right);
6739 }
6740 }
6741 }
6742 } else {
6743 let curve_width = curve_width(line.start_x, line.end_x);
6744 path.line_to(bottom_right - curve_height);
6745 if self.corner_radius > Pixels::ZERO {
6746 path.curve_to(bottom_right - curve_width, bottom_right);
6747 }
6748
6749 let bottom_left = point(line.start_x, bottom_right.y);
6750 path.line_to(bottom_left + curve_width);
6751 if self.corner_radius > Pixels::ZERO {
6752 path.curve_to(bottom_left - curve_height, bottom_left);
6753 }
6754 }
6755 }
6756
6757 if first_line.start_x > last_line.start_x {
6758 let curve_width = curve_width(last_line.start_x, first_line.start_x);
6759 let second_top_left = point(last_line.start_x, start_y + self.line_height);
6760 path.line_to(second_top_left + curve_height);
6761 if self.corner_radius > Pixels::ZERO {
6762 path.curve_to(second_top_left + curve_width, second_top_left);
6763 }
6764 let first_bottom_left = point(first_line.start_x, second_top_left.y);
6765 path.line_to(first_bottom_left - curve_width);
6766 if self.corner_radius > Pixels::ZERO {
6767 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
6768 }
6769 }
6770
6771 path.line_to(first_top_left + curve_height);
6772 if self.corner_radius > Pixels::ZERO {
6773 path.curve_to(first_top_left + top_curve_width, first_top_left);
6774 }
6775 path.line_to(first_top_right - top_curve_width);
6776
6777 cx.paint_path(path, self.color);
6778 }
6779}
6780
6781pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6782 (delta.pow(1.5) / 100.0).into()
6783}
6784
6785fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6786 (delta.pow(1.2) / 300.0).into()
6787}
6788
6789pub fn register_action<T: Action>(
6790 view: &View<Editor>,
6791 cx: &mut WindowContext,
6792 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
6793) {
6794 let view = view.clone();
6795 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
6796 let action = action.downcast_ref().unwrap();
6797 if phase == DispatchPhase::Bubble {
6798 view.update(cx, |editor, cx| {
6799 listener(editor, action, cx);
6800 })
6801 }
6802 })
6803}
6804
6805fn compute_auto_height_layout(
6806 editor: &mut Editor,
6807 max_lines: usize,
6808 max_line_number_width: Pixels,
6809 known_dimensions: Size<Option<Pixels>>,
6810 available_width: AvailableSpace,
6811 cx: &mut ViewContext<Editor>,
6812) -> Option<Size<Pixels>> {
6813 let width = known_dimensions.width.or({
6814 if let AvailableSpace::Definite(available_width) = available_width {
6815 Some(available_width)
6816 } else {
6817 None
6818 }
6819 })?;
6820 if let Some(height) = known_dimensions.height {
6821 return Some(size(width, height));
6822 }
6823
6824 let style = editor.style.as_ref().unwrap();
6825 let font_id = cx.text_system().resolve_font(&style.text.font());
6826 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6827 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6828 let em_width = cx
6829 .text_system()
6830 .typographic_bounds(font_id, font_size, 'm')
6831 .unwrap()
6832 .size
6833 .width;
6834 let em_advance = cx
6835 .text_system()
6836 .advance(font_id, font_size, 'm')
6837 .unwrap()
6838 .width;
6839
6840 let mut snapshot = editor.snapshot(cx);
6841 let gutter_dimensions = snapshot.gutter_dimensions(
6842 font_id,
6843 font_size,
6844 em_width,
6845 em_advance,
6846 max_line_number_width,
6847 cx,
6848 );
6849
6850 editor.gutter_dimensions = gutter_dimensions;
6851 let text_width = width - gutter_dimensions.width;
6852 let overscroll = size(em_width, px(0.));
6853
6854 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
6855 if editor.set_wrap_width(Some(editor_width), cx) {
6856 snapshot = editor.snapshot(cx);
6857 }
6858
6859 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
6860 let height = scroll_height
6861 .max(line_height)
6862 .min(line_height * max_lines as f32);
6863
6864 Some(size(width, height))
6865}
6866
6867#[cfg(test)]
6868mod tests {
6869 use super::*;
6870 use crate::{
6871 display_map::{BlockPlacement, BlockProperties},
6872 editor_tests::{init_test, update_test_language_settings},
6873 Editor, MultiBuffer,
6874 };
6875 use gpui::{TestAppContext, VisualTestContext};
6876 use language::language_settings;
6877 use log::info;
6878 use std::num::NonZeroU32;
6879 use util::test::sample_text;
6880
6881 #[gpui::test]
6882 fn test_shape_line_numbers(cx: &mut TestAppContext) {
6883 init_test(cx, |_| {});
6884 let window = cx.add_window(|cx| {
6885 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
6886 Editor::new(EditorMode::Full, buffer, None, true, cx)
6887 });
6888
6889 let editor = window.root(cx).unwrap();
6890 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6891 let element = EditorElement::new(&editor, style);
6892 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
6893
6894 let layouts = cx
6895 .update_window(*window, |_, cx| {
6896 element.layout_line_numbers(
6897 DisplayRow(0)..DisplayRow(6),
6898 (0..6).map(MultiBufferRow).map(Some),
6899 &Default::default(),
6900 Some(DisplayPoint::new(DisplayRow(0), 0)),
6901 &snapshot,
6902 cx,
6903 )
6904 })
6905 .unwrap();
6906 assert_eq!(layouts.len(), 6);
6907
6908 let relative_rows = window
6909 .update(cx, |editor, cx| {
6910 let snapshot = editor.snapshot(cx);
6911 element.calculate_relative_line_numbers(
6912 &snapshot,
6913 &(DisplayRow(0)..DisplayRow(6)),
6914 Some(DisplayRow(3)),
6915 )
6916 })
6917 .unwrap();
6918 assert_eq!(relative_rows[&DisplayRow(0)], 3);
6919 assert_eq!(relative_rows[&DisplayRow(1)], 2);
6920 assert_eq!(relative_rows[&DisplayRow(2)], 1);
6921 // current line has no relative number
6922 assert_eq!(relative_rows[&DisplayRow(4)], 1);
6923 assert_eq!(relative_rows[&DisplayRow(5)], 2);
6924
6925 // works if cursor is before screen
6926 let relative_rows = window
6927 .update(cx, |editor, cx| {
6928 let snapshot = editor.snapshot(cx);
6929 element.calculate_relative_line_numbers(
6930 &snapshot,
6931 &(DisplayRow(3)..DisplayRow(6)),
6932 Some(DisplayRow(1)),
6933 )
6934 })
6935 .unwrap();
6936 assert_eq!(relative_rows.len(), 3);
6937 assert_eq!(relative_rows[&DisplayRow(3)], 2);
6938 assert_eq!(relative_rows[&DisplayRow(4)], 3);
6939 assert_eq!(relative_rows[&DisplayRow(5)], 4);
6940
6941 // works if cursor is after screen
6942 let relative_rows = window
6943 .update(cx, |editor, cx| {
6944 let snapshot = editor.snapshot(cx);
6945 element.calculate_relative_line_numbers(
6946 &snapshot,
6947 &(DisplayRow(0)..DisplayRow(3)),
6948 Some(DisplayRow(6)),
6949 )
6950 })
6951 .unwrap();
6952 assert_eq!(relative_rows.len(), 3);
6953 assert_eq!(relative_rows[&DisplayRow(0)], 5);
6954 assert_eq!(relative_rows[&DisplayRow(1)], 4);
6955 assert_eq!(relative_rows[&DisplayRow(2)], 3);
6956 }
6957
6958 #[gpui::test]
6959 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
6960 init_test(cx, |_| {});
6961
6962 let window = cx.add_window(|cx| {
6963 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
6964 Editor::new(EditorMode::Full, buffer, None, true, cx)
6965 });
6966 let cx = &mut VisualTestContext::from_window(*window, cx);
6967 let editor = window.root(cx).unwrap();
6968 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6969
6970 window
6971 .update(cx, |editor, cx| {
6972 editor.cursor_shape = CursorShape::Block;
6973 editor.change_selections(None, cx, |s| {
6974 s.select_ranges([
6975 Point::new(0, 0)..Point::new(1, 0),
6976 Point::new(3, 2)..Point::new(3, 3),
6977 Point::new(5, 6)..Point::new(6, 0),
6978 ]);
6979 });
6980 })
6981 .unwrap();
6982
6983 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6984 EditorElement::new(&editor, style)
6985 });
6986
6987 assert_eq!(state.selections.len(), 1);
6988 let local_selections = &state.selections[0].1;
6989 assert_eq!(local_selections.len(), 3);
6990 // moves cursor back one line
6991 assert_eq!(
6992 local_selections[0].head,
6993 DisplayPoint::new(DisplayRow(0), 6)
6994 );
6995 assert_eq!(
6996 local_selections[0].range,
6997 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
6998 );
6999
7000 // moves cursor back one column
7001 assert_eq!(
7002 local_selections[1].range,
7003 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
7004 );
7005 assert_eq!(
7006 local_selections[1].head,
7007 DisplayPoint::new(DisplayRow(3), 2)
7008 );
7009
7010 // leaves cursor on the max point
7011 assert_eq!(
7012 local_selections[2].range,
7013 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
7014 );
7015 assert_eq!(
7016 local_selections[2].head,
7017 DisplayPoint::new(DisplayRow(6), 0)
7018 );
7019
7020 // active lines does not include 1 (even though the range of the selection does)
7021 assert_eq!(
7022 state.active_rows.keys().cloned().collect::<Vec<_>>(),
7023 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
7024 );
7025
7026 // multi-buffer support
7027 // in DisplayPoint coordinates, this is what we're dealing with:
7028 // 0: [[file
7029 // 1: header
7030 // 2: section]]
7031 // 3: aaaaaa
7032 // 4: bbbbbb
7033 // 5: cccccc
7034 // 6:
7035 // 7: [[footer]]
7036 // 8: [[header]]
7037 // 9: ffffff
7038 // 10: gggggg
7039 // 11: hhhhhh
7040 // 12:
7041 // 13: [[footer]]
7042 // 14: [[file
7043 // 15: header
7044 // 16: section]]
7045 // 17: bbbbbb
7046 // 18: cccccc
7047 // 19: dddddd
7048 // 20: [[footer]]
7049 let window = cx.add_window(|cx| {
7050 let buffer = MultiBuffer::build_multi(
7051 [
7052 (
7053 &(sample_text(8, 6, 'a') + "\n"),
7054 vec![
7055 Point::new(0, 0)..Point::new(3, 0),
7056 Point::new(4, 0)..Point::new(7, 0),
7057 ],
7058 ),
7059 (
7060 &(sample_text(8, 6, 'a') + "\n"),
7061 vec![Point::new(1, 0)..Point::new(3, 0)],
7062 ),
7063 ],
7064 cx,
7065 );
7066 Editor::new(EditorMode::Full, buffer, None, true, cx)
7067 });
7068 let editor = window.root(cx).unwrap();
7069 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7070 let _state = window.update(cx, |editor, cx| {
7071 editor.cursor_shape = CursorShape::Block;
7072 editor.change_selections(None, cx, |s| {
7073 s.select_display_ranges([
7074 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
7075 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
7076 ]);
7077 });
7078 });
7079
7080 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7081 EditorElement::new(&editor, style)
7082 });
7083 assert_eq!(state.selections.len(), 1);
7084 let local_selections = &state.selections[0].1;
7085 assert_eq!(local_selections.len(), 2);
7086
7087 // moves cursor on excerpt boundary back a line
7088 // and doesn't allow selection to bleed through
7089 assert_eq!(
7090 local_selections[0].range,
7091 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
7092 );
7093 assert_eq!(
7094 local_selections[0].head,
7095 DisplayPoint::new(DisplayRow(6), 0)
7096 );
7097 // moves cursor on buffer boundary back two lines
7098 // and doesn't allow selection to bleed through
7099 assert_eq!(
7100 local_selections[1].range,
7101 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
7102 );
7103 assert_eq!(
7104 local_selections[1].head,
7105 DisplayPoint::new(DisplayRow(12), 0)
7106 );
7107 }
7108
7109 #[gpui::test]
7110 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
7111 init_test(cx, |_| {});
7112
7113 let window = cx.add_window(|cx| {
7114 let buffer = MultiBuffer::build_simple("", cx);
7115 Editor::new(EditorMode::Full, buffer, None, true, cx)
7116 });
7117 let cx = &mut VisualTestContext::from_window(*window, cx);
7118 let editor = window.root(cx).unwrap();
7119 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7120 window
7121 .update(cx, |editor, cx| {
7122 editor.set_placeholder_text("hello", cx);
7123 editor.insert_blocks(
7124 [BlockProperties {
7125 style: BlockStyle::Fixed,
7126 placement: BlockPlacement::Above(Anchor::min()),
7127 height: 3,
7128 render: Arc::new(|cx| div().h(3. * cx.line_height()).into_any()),
7129 priority: 0,
7130 }],
7131 None,
7132 cx,
7133 );
7134
7135 // Blur the editor so that it displays placeholder text.
7136 cx.blur();
7137 })
7138 .unwrap();
7139
7140 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7141 EditorElement::new(&editor, style)
7142 });
7143 assert_eq!(state.position_map.line_layouts.len(), 4);
7144 assert_eq!(
7145 state
7146 .line_numbers
7147 .iter()
7148 .map(Option::is_some)
7149 .collect::<Vec<_>>(),
7150 &[false, false, false, true]
7151 );
7152 }
7153
7154 #[gpui::test]
7155 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
7156 const TAB_SIZE: u32 = 4;
7157
7158 let input_text = "\t \t|\t| a b";
7159 let expected_invisibles = vec![
7160 Invisible::Tab {
7161 line_start_offset: 0,
7162 line_end_offset: TAB_SIZE as usize,
7163 },
7164 Invisible::Whitespace {
7165 line_offset: TAB_SIZE as usize,
7166 },
7167 Invisible::Tab {
7168 line_start_offset: TAB_SIZE as usize + 1,
7169 line_end_offset: TAB_SIZE as usize * 2,
7170 },
7171 Invisible::Tab {
7172 line_start_offset: TAB_SIZE as usize * 2 + 1,
7173 line_end_offset: TAB_SIZE as usize * 3,
7174 },
7175 Invisible::Whitespace {
7176 line_offset: TAB_SIZE as usize * 3 + 1,
7177 },
7178 Invisible::Whitespace {
7179 line_offset: TAB_SIZE as usize * 3 + 3,
7180 },
7181 ];
7182 assert_eq!(
7183 expected_invisibles.len(),
7184 input_text
7185 .chars()
7186 .filter(|initial_char| initial_char.is_whitespace())
7187 .count(),
7188 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
7189 );
7190
7191 for show_line_numbers in [true, false] {
7192 init_test(cx, |s| {
7193 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7194 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
7195 });
7196
7197 let actual_invisibles = collect_invisibles_from_new_editor(
7198 cx,
7199 EditorMode::Full,
7200 input_text,
7201 px(500.0),
7202 show_line_numbers,
7203 );
7204
7205 assert_eq!(expected_invisibles, actual_invisibles);
7206 }
7207 }
7208
7209 #[gpui::test]
7210 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
7211 init_test(cx, |s| {
7212 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7213 s.defaults.tab_size = NonZeroU32::new(4);
7214 });
7215
7216 for editor_mode_without_invisibles in [
7217 EditorMode::SingleLine { auto_width: false },
7218 EditorMode::AutoHeight { max_lines: 100 },
7219 ] {
7220 for show_line_numbers in [true, false] {
7221 let invisibles = collect_invisibles_from_new_editor(
7222 cx,
7223 editor_mode_without_invisibles,
7224 "\t\t\t| | a b",
7225 px(500.0),
7226 show_line_numbers,
7227 );
7228 assert!(invisibles.is_empty(),
7229 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
7230 }
7231 }
7232 }
7233
7234 #[gpui::test]
7235 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
7236 let tab_size = 4;
7237 let input_text = "a\tbcd ".repeat(9);
7238 let repeated_invisibles = [
7239 Invisible::Tab {
7240 line_start_offset: 1,
7241 line_end_offset: tab_size as usize,
7242 },
7243 Invisible::Whitespace {
7244 line_offset: tab_size as usize + 3,
7245 },
7246 Invisible::Whitespace {
7247 line_offset: tab_size as usize + 4,
7248 },
7249 Invisible::Whitespace {
7250 line_offset: tab_size as usize + 5,
7251 },
7252 Invisible::Whitespace {
7253 line_offset: tab_size as usize + 6,
7254 },
7255 Invisible::Whitespace {
7256 line_offset: tab_size as usize + 7,
7257 },
7258 ];
7259 let expected_invisibles = std::iter::once(repeated_invisibles)
7260 .cycle()
7261 .take(9)
7262 .flatten()
7263 .collect::<Vec<_>>();
7264 assert_eq!(
7265 expected_invisibles.len(),
7266 input_text
7267 .chars()
7268 .filter(|initial_char| initial_char.is_whitespace())
7269 .count(),
7270 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
7271 );
7272 info!("Expected invisibles: {expected_invisibles:?}");
7273
7274 init_test(cx, |_| {});
7275
7276 // Put the same string with repeating whitespace pattern into editors of various size,
7277 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
7278 let resize_step = 10.0;
7279 let mut editor_width = 200.0;
7280 while editor_width <= 1000.0 {
7281 for show_line_numbers in [true, false] {
7282 update_test_language_settings(cx, |s| {
7283 s.defaults.tab_size = NonZeroU32::new(tab_size);
7284 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7285 s.defaults.preferred_line_length = Some(editor_width as u32);
7286 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
7287 });
7288
7289 let actual_invisibles = collect_invisibles_from_new_editor(
7290 cx,
7291 EditorMode::Full,
7292 &input_text,
7293 px(editor_width),
7294 show_line_numbers,
7295 );
7296
7297 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
7298 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
7299 let mut i = 0;
7300 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
7301 i = actual_index;
7302 match expected_invisibles.get(i) {
7303 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
7304 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
7305 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
7306 _ => {
7307 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
7308 }
7309 },
7310 None => {
7311 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
7312 }
7313 }
7314 }
7315 let missing_expected_invisibles = &expected_invisibles[i + 1..];
7316 assert!(
7317 missing_expected_invisibles.is_empty(),
7318 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
7319 );
7320
7321 editor_width += resize_step;
7322 }
7323 }
7324 }
7325
7326 #[gpui::test]
7327 fn test_inline_completion_popover_text(cx: &mut TestAppContext) {
7328 init_test(cx, |_| {});
7329
7330 // Test case 1: Simple insertion
7331 {
7332 let window = cx.add_window(|cx| {
7333 let buffer = MultiBuffer::build_simple("Hello, world!", cx);
7334 Editor::new(EditorMode::Full, buffer, None, true, cx)
7335 });
7336 let cx = &mut VisualTestContext::from_window(*window, cx);
7337
7338 window
7339 .update(cx, |editor, cx| {
7340 let snapshot = editor.snapshot(cx);
7341 let edit_range = snapshot.buffer_snapshot.anchor_after(Point::new(0, 6))
7342 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 6));
7343 let edits = vec![(edit_range, " beautiful".to_string())];
7344
7345 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7346
7347 assert_eq!(text, "Hello, beautiful world!");
7348 assert_eq!(highlights.len(), 1);
7349 assert_eq!(highlights[0].0, 6..16);
7350 assert_eq!(
7351 highlights[0].1.background_color,
7352 Some(cx.theme().status().created_background)
7353 );
7354 })
7355 .unwrap();
7356 }
7357
7358 // Test case 2: Replacement
7359 {
7360 let window = cx.add_window(|cx| {
7361 let buffer = MultiBuffer::build_simple("This is a test.", cx);
7362 Editor::new(EditorMode::Full, buffer, None, true, cx)
7363 });
7364 let cx = &mut VisualTestContext::from_window(*window, cx);
7365
7366 window
7367 .update(cx, |editor, cx| {
7368 let snapshot = editor.snapshot(cx);
7369 let edits = vec![(
7370 snapshot.buffer_snapshot.anchor_after(Point::new(0, 0))
7371 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 4)),
7372 "That".to_string(),
7373 )];
7374
7375 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7376
7377 assert_eq!(text, "That is a test.");
7378 assert_eq!(highlights.len(), 1);
7379 assert_eq!(highlights[0].0, 0..4);
7380 assert_eq!(
7381 highlights[0].1.background_color,
7382 Some(cx.theme().status().created_background)
7383 );
7384 })
7385 .unwrap();
7386 }
7387
7388 // Test case 3: Multiple edits
7389 {
7390 let window = cx.add_window(|cx| {
7391 let buffer = MultiBuffer::build_simple("Hello, world!", cx);
7392 Editor::new(EditorMode::Full, buffer, None, true, cx)
7393 });
7394 let cx = &mut VisualTestContext::from_window(*window, cx);
7395
7396 window
7397 .update(cx, |editor, cx| {
7398 let snapshot = editor.snapshot(cx);
7399 let edits = vec![
7400 (
7401 snapshot.buffer_snapshot.anchor_after(Point::new(0, 0))
7402 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 5)),
7403 "Greetings".into(),
7404 ),
7405 (
7406 snapshot.buffer_snapshot.anchor_after(Point::new(0, 12))
7407 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 12)),
7408 " and universe".into(),
7409 ),
7410 ];
7411
7412 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7413
7414 assert_eq!(text, "Greetings, world and universe!");
7415 assert_eq!(highlights.len(), 2);
7416 assert_eq!(highlights[0].0, 0..9);
7417 assert_eq!(highlights[1].0, 16..29);
7418 assert_eq!(
7419 highlights[0].1.background_color,
7420 Some(cx.theme().status().created_background)
7421 );
7422 assert_eq!(
7423 highlights[1].1.background_color,
7424 Some(cx.theme().status().created_background)
7425 );
7426 })
7427 .unwrap();
7428 }
7429
7430 // Test case 4: Multiple lines with edits
7431 {
7432 let window = cx.add_window(|cx| {
7433 let buffer = MultiBuffer::build_simple(
7434 "First line\nSecond line\nThird line\nFourth line",
7435 cx,
7436 );
7437 Editor::new(EditorMode::Full, buffer, None, true, cx)
7438 });
7439 let cx = &mut VisualTestContext::from_window(*window, cx);
7440
7441 window
7442 .update(cx, |editor, cx| {
7443 let snapshot = editor.snapshot(cx);
7444 let edits = vec![
7445 (
7446 snapshot.buffer_snapshot.anchor_before(Point::new(1, 7))
7447 ..snapshot.buffer_snapshot.anchor_before(Point::new(1, 11)),
7448 "modified".to_string(),
7449 ),
7450 (
7451 snapshot.buffer_snapshot.anchor_before(Point::new(2, 0))
7452 ..snapshot.buffer_snapshot.anchor_before(Point::new(2, 10)),
7453 "New third line".to_string(),
7454 ),
7455 (
7456 snapshot.buffer_snapshot.anchor_before(Point::new(3, 6))
7457 ..snapshot.buffer_snapshot.anchor_before(Point::new(3, 6)),
7458 " updated".to_string(),
7459 ),
7460 ];
7461
7462 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7463
7464 assert_eq!(text, "Second modified\nNew third line\nFourth updated line");
7465 assert_eq!(highlights.len(), 3);
7466 assert_eq!(highlights[0].0, 7..15); // "modified"
7467 assert_eq!(highlights[1].0, 16..30); // "New third line"
7468 assert_eq!(highlights[2].0, 37..45); // " updated"
7469
7470 for highlight in &highlights {
7471 assert_eq!(
7472 highlight.1.background_color,
7473 Some(cx.theme().status().created_background)
7474 );
7475 }
7476 })
7477 .unwrap();
7478 }
7479 }
7480
7481 fn collect_invisibles_from_new_editor(
7482 cx: &mut TestAppContext,
7483 editor_mode: EditorMode,
7484 input_text: &str,
7485 editor_width: Pixels,
7486 show_line_numbers: bool,
7487 ) -> Vec<Invisible> {
7488 info!(
7489 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
7490 editor_width.0
7491 );
7492 let window = cx.add_window(|cx| {
7493 let buffer = MultiBuffer::build_simple(input_text, cx);
7494 Editor::new(editor_mode, buffer, None, true, cx)
7495 });
7496 let cx = &mut VisualTestContext::from_window(*window, cx);
7497 let editor = window.root(cx).unwrap();
7498
7499 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7500 window
7501 .update(cx, |editor, cx| {
7502 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
7503 editor.set_wrap_width(Some(editor_width), cx);
7504 editor.set_show_line_numbers(show_line_numbers, cx);
7505 })
7506 .unwrap();
7507 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7508 EditorElement::new(&editor, style)
7509 });
7510 state
7511 .position_map
7512 .line_layouts
7513 .iter()
7514 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
7515 .cloned()
7516 .collect()
7517 }
7518}