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, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClickEvent,
35 ClipboardItem, ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element,
36 ElementInputHandler, Entity, FontId, GlobalElementId, HighlightStyle, Hitbox, Hsla,
37 InteractiveElement, IntoElement, Length, ModifiersChangedEvent, MouseButton, MouseDownEvent,
38 MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollWheelEvent,
39 ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled, Subscription,
40 TextRun, TextStyleRefinement, 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::prelude::*;
74use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
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.lower_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.upper_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.lower_right().x, bounds.lower_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 } => {
2156 let icon_offset = gutter_dimensions.width
2157 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2158
2159 let mut result = v_flex().id(block_id).w_full();
2160 if let Some(prev_excerpt) = prev_excerpt {
2161 if *show_excerpt_controls {
2162 result = result.child(
2163 h_flex()
2164 .w(icon_offset)
2165 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2166 .flex_none()
2167 .justify_end()
2168 .child(self.render_expand_excerpt_button(
2169 prev_excerpt.id,
2170 ExpandExcerptDirection::Down,
2171 IconName::ArrowDownFromLine,
2172 cx,
2173 )),
2174 );
2175 }
2176 }
2177
2178 let jump_data = jump_data(snapshot, block_row_start, *height, first_excerpt, cx);
2179 result
2180 .child(self.render_buffer_header(
2181 first_excerpt,
2182 header_padding,
2183 true,
2184 jump_data,
2185 cx,
2186 ))
2187 .into_any_element()
2188 }
2189 Block::ExcerptBoundary {
2190 prev_excerpt,
2191 next_excerpt,
2192 show_excerpt_controls,
2193 height,
2194 starts_new_buffer,
2195 ..
2196 } => {
2197 let icon_offset = gutter_dimensions.width
2198 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2199
2200 let mut result = v_flex().id(block_id).w_full();
2201 if let Some(prev_excerpt) = prev_excerpt {
2202 if *show_excerpt_controls {
2203 result = result.child(
2204 h_flex()
2205 .w(icon_offset)
2206 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2207 .flex_none()
2208 .justify_end()
2209 .child(self.render_expand_excerpt_button(
2210 prev_excerpt.id,
2211 ExpandExcerptDirection::Down,
2212 IconName::ArrowDownFromLine,
2213 cx,
2214 )),
2215 );
2216 }
2217 }
2218
2219 if let Some(next_excerpt) = next_excerpt {
2220 let jump_data = jump_data(snapshot, block_row_start, *height, next_excerpt, cx);
2221 if *starts_new_buffer {
2222 result = result.child(self.render_buffer_header(
2223 next_excerpt,
2224 header_padding,
2225 false,
2226 jump_data,
2227 cx,
2228 ));
2229 if *show_excerpt_controls {
2230 result = result.child(
2231 h_flex()
2232 .w(icon_offset)
2233 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2234 .flex_none()
2235 .justify_end()
2236 .child(self.render_expand_excerpt_button(
2237 next_excerpt.id,
2238 ExpandExcerptDirection::Up,
2239 IconName::ArrowUpFromLine,
2240 cx,
2241 )),
2242 );
2243 }
2244 } else {
2245 let editor = self.editor.clone();
2246 result = result.child(
2247 h_flex()
2248 .id("excerpt header block")
2249 .group("excerpt-jump-action")
2250 .justify_start()
2251 .w_full()
2252 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * cx.line_height())
2253 .relative()
2254 .child(
2255 div()
2256 .top(px(0.))
2257 .absolute()
2258 .w_full()
2259 .h_px()
2260 .bg(cx.theme().colors().border_variant)
2261 .group_hover("excerpt-jump-action", |style| {
2262 style.bg(cx.theme().colors().border)
2263 }),
2264 )
2265 .cursor_pointer()
2266 .on_click({
2267 let jump_data = jump_data.clone();
2268 cx.listener_for(&self.editor, {
2269 let jump_data = jump_data.clone();
2270 move |editor, e: &ClickEvent, cx| {
2271 cx.stop_propagation();
2272 editor.open_excerpts_common(
2273 Some(jump_data.clone()),
2274 e.down.modifiers.secondary(),
2275 cx,
2276 );
2277 }
2278 })
2279 })
2280 .tooltip({
2281 let jump_data = jump_data.clone();
2282 move |cx| {
2283 let jump_message = format!(
2284 "Jump to {}:L{}",
2285 match &jump_data.path {
2286 Some(project_path) =>
2287 project_path.path.display().to_string(),
2288 None => {
2289 let editor = editor.read(cx);
2290 editor
2291 .file_at(jump_data.position, cx)
2292 .map(|file| {
2293 file.full_path(cx).display().to_string()
2294 })
2295 .or_else(|| {
2296 Some(
2297 editor
2298 .tab_description(0, cx)?
2299 .to_string(),
2300 )
2301 })
2302 .unwrap_or_else(|| {
2303 "Unknown buffer".to_string()
2304 })
2305 }
2306 },
2307 jump_data.position.row + 1
2308 );
2309 Tooltip::for_action(jump_message, &OpenExcerpts, cx)
2310 }
2311 })
2312 .child(
2313 h_flex()
2314 .w(icon_offset)
2315 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2316 * cx.line_height())
2317 .flex_none()
2318 .justify_end()
2319 .child(if *show_excerpt_controls {
2320 self.render_expand_excerpt_button(
2321 next_excerpt.id,
2322 ExpandExcerptDirection::Up,
2323 IconName::ArrowUpFromLine,
2324 cx,
2325 )
2326 } else {
2327 ButtonLike::new("jump-icon")
2328 .style(ButtonStyle::Transparent)
2329 .child(
2330 svg()
2331 .path(IconName::ArrowUpRight.path())
2332 .size(IconSize::XSmall.rems())
2333 .text_color(
2334 cx.theme().colors().border_variant,
2335 )
2336 .group_hover(
2337 "excerpt-jump-action",
2338 |style| {
2339 style.text_color(
2340 cx.theme().colors().border,
2341 )
2342 },
2343 ),
2344 )
2345 }),
2346 ),
2347 );
2348 }
2349 }
2350
2351 result.into_any()
2352 }
2353 };
2354
2355 // Discover the element's content height, then round up to the nearest multiple of line height.
2356 let preliminary_size =
2357 element.layout_as_root(size(available_width, AvailableSpace::MinContent), cx);
2358 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2359 let final_size = if preliminary_size.height == quantized_height {
2360 preliminary_size
2361 } else {
2362 element.layout_as_root(size(available_width, quantized_height.into()), cx)
2363 };
2364
2365 if let BlockId::Custom(custom_block_id) = block_id {
2366 if block.height() > 0 {
2367 let element_height_in_lines =
2368 ((final_size.height / line_height).ceil() as u32).max(1);
2369 if element_height_in_lines != block.height() {
2370 resized_blocks.insert(custom_block_id, element_height_in_lines);
2371 }
2372 }
2373 }
2374
2375 (element, final_size)
2376 }
2377
2378 fn render_buffer_header(
2379 &self,
2380 for_excerpt: &ExcerptInfo,
2381 header_padding: Pixels,
2382 is_folded: bool,
2383 jump_data: JumpData,
2384 cx: &mut WindowContext,
2385 ) -> Div {
2386 let include_root = self
2387 .editor
2388 .read(cx)
2389 .project
2390 .as_ref()
2391 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2392 .unwrap_or_default();
2393 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2394 let filename = path
2395 .as_ref()
2396 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2397 let parent_path = path
2398 .as_ref()
2399 .and_then(|path| Some(path.parent()?.to_string_lossy().to_string() + "/"));
2400
2401 let focus_handle = self.editor.focus_handle(cx);
2402
2403 div()
2404 .px(header_padding)
2405 .pt(header_padding)
2406 .w_full()
2407 .h(FILE_HEADER_HEIGHT as f32 * cx.line_height())
2408 .child(
2409 h_flex()
2410 .size_full()
2411 .gap_2()
2412 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2413 .pl_0p5()
2414 .pr_4()
2415 .rounded_md()
2416 .shadow_md()
2417 .border_1()
2418 .border_color(cx.theme().colors().border)
2419 .bg(cx.theme().colors().editor_subheader_background)
2420 .hover(|style| style.bg(cx.theme().colors().element_hover))
2421 .map(|header| {
2422 let editor = self.editor.clone();
2423 let buffer_id = for_excerpt.buffer_id;
2424 let toggle_chevron_icon =
2425 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2426 header.child(
2427 div()
2428 .hover(|style| style.bg(cx.theme().colors().element_selected))
2429 .rounded_sm()
2430 .child(
2431 ButtonLike::new("toggle-buffer-fold")
2432 .style(ui::ButtonStyle::Transparent)
2433 .size(ButtonSize::Large)
2434 .width(px(30.).into())
2435 .children(toggle_chevron_icon)
2436 .tooltip({
2437 let focus_handle = focus_handle.clone();
2438 move |cx| {
2439 Tooltip::for_action_in(
2440 "Toggle Excerpt Fold",
2441 &ToggleFold,
2442 &focus_handle,
2443 cx,
2444 )
2445 }
2446 })
2447 .on_click(move |_, cx| {
2448 if is_folded {
2449 editor.update(cx, |editor, cx| {
2450 editor.unfold_buffer(buffer_id, cx);
2451 });
2452 } else {
2453 editor.update(cx, |editor, cx| {
2454 editor.fold_buffer(buffer_id, cx);
2455 });
2456 }
2457 }),
2458 ),
2459 )
2460 })
2461 .child(
2462 h_flex()
2463 .id("path header block")
2464 .size_full()
2465 .justify_between()
2466 .child(
2467 h_flex()
2468 .gap_2()
2469 .child(
2470 filename
2471 .map(SharedString::from)
2472 .unwrap_or_else(|| "untitled".into()),
2473 )
2474 .when_some(parent_path, |then, path| {
2475 then.child(
2476 div()
2477 .child(path)
2478 .text_color(cx.theme().colors().text_muted),
2479 )
2480 }),
2481 )
2482 .child(Icon::new(IconName::ArrowUpRight))
2483 .cursor_pointer()
2484 .tooltip({
2485 let focus_handle = focus_handle.clone();
2486 move |cx| {
2487 Tooltip::for_action_in(
2488 "Jump To File",
2489 &OpenExcerpts,
2490 &focus_handle,
2491 cx,
2492 )
2493 }
2494 })
2495 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
2496 .on_click(cx.listener_for(&self.editor, {
2497 move |editor, e: &ClickEvent, cx| {
2498 editor.open_excerpts_common(
2499 Some(jump_data.clone()),
2500 e.down.modifiers.secondary(),
2501 cx,
2502 );
2503 }
2504 })),
2505 ),
2506 )
2507 }
2508
2509 fn render_expand_excerpt_button(
2510 &self,
2511 excerpt_id: ExcerptId,
2512 direction: ExpandExcerptDirection,
2513 icon: IconName,
2514 cx: &mut WindowContext,
2515 ) -> ButtonLike {
2516 ButtonLike::new("expand-icon")
2517 .style(ButtonStyle::Transparent)
2518 .child(
2519 svg()
2520 .path(icon.path())
2521 .size(IconSize::XSmall.rems())
2522 .text_color(cx.theme().colors().editor_line_number)
2523 .group("")
2524 .hover(|style| style.text_color(cx.theme().colors().editor_active_line_number)),
2525 )
2526 .on_click(cx.listener_for(&self.editor, {
2527 move |editor, _, cx| {
2528 editor.expand_excerpt(excerpt_id, direction, cx);
2529 }
2530 }))
2531 .tooltip({
2532 move |cx| Tooltip::for_action("Expand Excerpt", &ExpandExcerpts { lines: 0 }, cx)
2533 })
2534 }
2535
2536 #[allow(clippy::too_many_arguments)]
2537 fn render_blocks(
2538 &self,
2539 rows: Range<DisplayRow>,
2540 snapshot: &EditorSnapshot,
2541 hitbox: &Hitbox,
2542 text_hitbox: &Hitbox,
2543 editor_width: Pixels,
2544 scroll_width: &mut Pixels,
2545 gutter_dimensions: &GutterDimensions,
2546 em_width: Pixels,
2547 text_x: Pixels,
2548 line_height: Pixels,
2549 line_layouts: &[LineWithInvisibles],
2550 selections: &[Selection<Point>],
2551 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2552 cx: &mut WindowContext,
2553 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2554 let (fixed_blocks, non_fixed_blocks) = snapshot
2555 .blocks_in_range(rows.clone())
2556 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2557
2558 let mut focused_block = self
2559 .editor
2560 .update(cx, |editor, _| editor.take_focused_block());
2561 let mut fixed_block_max_width = Pixels::ZERO;
2562 let mut blocks = Vec::new();
2563 let mut resized_blocks = HashMap::default();
2564
2565 for (row, block) in fixed_blocks {
2566 let block_id = block.id();
2567
2568 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2569 focused_block = None;
2570 }
2571
2572 let (element, element_size) = self.render_block(
2573 block,
2574 AvailableSpace::MinContent,
2575 block_id,
2576 row,
2577 snapshot,
2578 text_x,
2579 &rows,
2580 line_layouts,
2581 gutter_dimensions,
2582 line_height,
2583 em_width,
2584 text_hitbox,
2585 editor_width,
2586 scroll_width,
2587 &mut resized_blocks,
2588 selections,
2589 is_row_soft_wrapped,
2590 cx,
2591 );
2592 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2593 blocks.push(BlockLayout {
2594 id: block_id,
2595 row: Some(row),
2596 element,
2597 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2598 style: BlockStyle::Fixed,
2599 });
2600 }
2601 for (row, block) in non_fixed_blocks {
2602 let style = block.style();
2603 let width = match style {
2604 BlockStyle::Sticky => hitbox.size.width,
2605 BlockStyle::Flex => hitbox
2606 .size
2607 .width
2608 .max(fixed_block_max_width)
2609 .max(gutter_dimensions.width + *scroll_width),
2610 BlockStyle::Fixed => unreachable!(),
2611 };
2612 let block_id = block.id();
2613
2614 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2615 focused_block = None;
2616 }
2617
2618 let (element, element_size) = self.render_block(
2619 block,
2620 width.into(),
2621 block_id,
2622 row,
2623 snapshot,
2624 text_x,
2625 &rows,
2626 line_layouts,
2627 gutter_dimensions,
2628 line_height,
2629 em_width,
2630 text_hitbox,
2631 editor_width,
2632 scroll_width,
2633 &mut resized_blocks,
2634 selections,
2635 is_row_soft_wrapped,
2636 cx,
2637 );
2638
2639 blocks.push(BlockLayout {
2640 id: block_id,
2641 row: Some(row),
2642 element,
2643 available_space: size(width.into(), element_size.height.into()),
2644 style,
2645 });
2646 }
2647
2648 if let Some(focused_block) = focused_block {
2649 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2650 if focus_handle.is_focused(cx) {
2651 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2652 let style = block.style();
2653 let width = match style {
2654 BlockStyle::Fixed => AvailableSpace::MinContent,
2655 BlockStyle::Flex => AvailableSpace::Definite(
2656 hitbox
2657 .size
2658 .width
2659 .max(fixed_block_max_width)
2660 .max(gutter_dimensions.width + *scroll_width),
2661 ),
2662 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2663 };
2664
2665 let (element, element_size) = self.render_block(
2666 &block,
2667 width,
2668 focused_block.id,
2669 rows.end,
2670 snapshot,
2671 text_x,
2672 &rows,
2673 line_layouts,
2674 gutter_dimensions,
2675 line_height,
2676 em_width,
2677 text_hitbox,
2678 editor_width,
2679 scroll_width,
2680 &mut resized_blocks,
2681 selections,
2682 is_row_soft_wrapped,
2683 cx,
2684 );
2685
2686 blocks.push(BlockLayout {
2687 id: block.id(),
2688 row: None,
2689 element,
2690 available_space: size(width, element_size.height.into()),
2691 style,
2692 });
2693 }
2694 }
2695 }
2696 }
2697
2698 if resized_blocks.is_empty() {
2699 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2700 Ok(blocks)
2701 } else {
2702 Err(resized_blocks)
2703 }
2704 }
2705
2706 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2707 /// a restart of rendering for the editor based on the new sizes.
2708 fn layout_blocks(
2709 &self,
2710 blocks: &mut Vec<BlockLayout>,
2711 block_starts: &mut HashSet<DisplayRow>,
2712 hitbox: &Hitbox,
2713 line_height: Pixels,
2714 scroll_pixel_position: gpui::Point<Pixels>,
2715 cx: &mut WindowContext,
2716 ) {
2717 for block in blocks {
2718 let mut origin = if let Some(row) = block.row {
2719 block_starts.insert(row);
2720 hitbox.origin
2721 + point(
2722 Pixels::ZERO,
2723 row.as_f32() * line_height - scroll_pixel_position.y,
2724 )
2725 } else {
2726 // Position the block outside the visible area
2727 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2728 };
2729
2730 if !matches!(block.style, BlockStyle::Sticky) {
2731 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2732 }
2733
2734 let focus_handle = block
2735 .element
2736 .prepaint_as_root(origin, block.available_space, cx);
2737
2738 if let Some(focus_handle) = focus_handle {
2739 self.editor.update(cx, |editor, _cx| {
2740 editor.set_focused_block(FocusedBlock {
2741 id: block.id,
2742 focus_handle: focus_handle.downgrade(),
2743 });
2744 });
2745 }
2746 }
2747 }
2748
2749 #[allow(clippy::too_many_arguments)]
2750 fn layout_context_menu(
2751 &self,
2752 line_height: Pixels,
2753 hitbox: &Hitbox,
2754 text_hitbox: &Hitbox,
2755 content_origin: gpui::Point<Pixels>,
2756 start_row: DisplayRow,
2757 scroll_pixel_position: gpui::Point<Pixels>,
2758 line_layouts: &[LineWithInvisibles],
2759 newest_selection_head: DisplayPoint,
2760 gutter_overshoot: Pixels,
2761 cx: &mut WindowContext,
2762 ) -> bool {
2763 let max_height = cmp::min(
2764 12. * line_height,
2765 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2766 );
2767 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2768 if editor.context_menu_visible() {
2769 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2770 } else {
2771 None
2772 }
2773 }) else {
2774 return false;
2775 };
2776
2777 let context_menu_size = context_menu.layout_as_root(AvailableSpace::min_size(), cx);
2778
2779 let (x, y) = match position {
2780 crate::ContextMenuOrigin::EditorPoint(point) => {
2781 let cursor_row_layout = &line_layouts[point.row().minus(start_row) as usize];
2782 let x = cursor_row_layout.x_for_index(point.column() as usize)
2783 - scroll_pixel_position.x;
2784 let y = point.row().next_row().as_f32() * line_height - scroll_pixel_position.y;
2785 (x, y)
2786 }
2787 crate::ContextMenuOrigin::GutterIndicator(row) => {
2788 // 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
2789 // text field.
2790 let x = -gutter_overshoot;
2791 let y = row.next_row().as_f32() * line_height - scroll_pixel_position.y;
2792 (x, y)
2793 }
2794 };
2795
2796 let mut list_origin = content_origin + point(x, y);
2797 let list_width = context_menu_size.width;
2798 let list_height = context_menu_size.height;
2799
2800 // Snap the right edge of the list to the right edge of the window if
2801 // its horizontal bounds overflow.
2802 if list_origin.x + list_width > cx.viewport_size().width {
2803 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2804 }
2805
2806 if list_origin.y + list_height > text_hitbox.lower_right().y {
2807 list_origin.y -= line_height + list_height;
2808 }
2809
2810 cx.defer_draw(context_menu, list_origin, 1);
2811 true
2812 }
2813
2814 #[allow(clippy::too_many_arguments)]
2815 fn layout_inline_completion_popover(
2816 &self,
2817 text_bounds: &Bounds<Pixels>,
2818 editor_snapshot: &EditorSnapshot,
2819 visible_row_range: Range<DisplayRow>,
2820 scroll_top: f32,
2821 scroll_bottom: f32,
2822 line_layouts: &[LineWithInvisibles],
2823 line_height: Pixels,
2824 scroll_pixel_position: gpui::Point<Pixels>,
2825 editor_width: Pixels,
2826 style: &EditorStyle,
2827 cx: &mut WindowContext,
2828 ) -> Option<AnyElement> {
2829 const PADDING_X: Pixels = Pixels(24.);
2830 const PADDING_Y: Pixels = Pixels(2.);
2831
2832 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
2833
2834 match &active_inline_completion.completion {
2835 InlineCompletion::Move(target_position) => {
2836 let tab_kbd = h_flex()
2837 .px_0p5()
2838 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
2839 .text_size(TextSize::XSmall.rems(cx))
2840 .text_color(cx.theme().colors().text.opacity(0.8))
2841 .child("tab");
2842
2843 let icon_container = div().mt(px(2.5)); // For optical alignment
2844
2845 let container_element = h_flex()
2846 .items_center()
2847 .py_0p5()
2848 .px_1()
2849 .gap_1()
2850 .bg(cx.theme().colors().editor_subheader_background)
2851 .border_1()
2852 .border_color(cx.theme().colors().text_accent.opacity(0.2))
2853 .rounded_md()
2854 .shadow_sm();
2855
2856 let target_display_point = target_position.to_display_point(editor_snapshot);
2857 if target_display_point.row().as_f32() < scroll_top {
2858 let mut element = container_element
2859 .child(tab_kbd)
2860 .child(Label::new("Jump to Edit").size(LabelSize::Small))
2861 .child(
2862 icon_container
2863 .child(Icon::new(IconName::ArrowUp).size(IconSize::Small)),
2864 )
2865 .into_any();
2866 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
2867 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
2868 element.prepaint_at(text_bounds.origin + offset, cx);
2869 Some(element)
2870 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
2871 let mut element = container_element
2872 .child(tab_kbd)
2873 .child(Label::new("Jump to Edit").size(LabelSize::Small))
2874 .child(
2875 icon_container
2876 .child(Icon::new(IconName::ArrowDown).size(IconSize::Small)),
2877 )
2878 .into_any();
2879 let size = element.layout_as_root(AvailableSpace::min_size(), cx);
2880 let offset = point(
2881 (text_bounds.size.width - size.width) / 2.,
2882 text_bounds.size.height - size.height - PADDING_Y,
2883 );
2884 element.prepaint_at(text_bounds.origin + offset, cx);
2885 Some(element)
2886 } else {
2887 let mut element = container_element
2888 .child(tab_kbd)
2889 .child(Label::new("Jump to Edit").size(LabelSize::Small))
2890 .into_any();
2891
2892 let target_line_end = DisplayPoint::new(
2893 target_display_point.row(),
2894 editor_snapshot.line_len(target_display_point.row()),
2895 );
2896 let origin = self.editor.update(cx, |editor, cx| {
2897 editor.display_to_pixel_point(target_line_end, editor_snapshot, cx)
2898 })?;
2899 element.prepaint_as_root(
2900 text_bounds.origin + origin + point(PADDING_X, px(0.)),
2901 AvailableSpace::min_size(),
2902 cx,
2903 );
2904 Some(element)
2905 }
2906 }
2907 InlineCompletion::Edit(edits) => {
2908 let edit_start = edits
2909 .first()
2910 .unwrap()
2911 .0
2912 .start
2913 .to_display_point(editor_snapshot);
2914 let edit_end = edits
2915 .last()
2916 .unwrap()
2917 .0
2918 .end
2919 .to_display_point(editor_snapshot);
2920
2921 let is_visible = visible_row_range.contains(&edit_start.row())
2922 || visible_row_range.contains(&edit_end.row());
2923 if !is_visible {
2924 return None;
2925 }
2926
2927 if all_edits_insertions_or_deletions(edits, &editor_snapshot.buffer_snapshot) {
2928 return None;
2929 }
2930
2931 let (text, highlights) = inline_completion_popover_text(editor_snapshot, edits, cx);
2932 let line_count = text.lines().count() + 1;
2933
2934 let longest_row =
2935 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
2936 let longest_line_width = if visible_row_range.contains(&longest_row) {
2937 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
2938 } else {
2939 layout_line(
2940 longest_row,
2941 editor_snapshot,
2942 style,
2943 editor_width,
2944 |_| false,
2945 cx,
2946 )
2947 .width
2948 };
2949
2950 let styled_text =
2951 gpui::StyledText::new(text).with_highlights(&style.text, highlights);
2952
2953 let mut element = div()
2954 .bg(cx.theme().colors().editor_background)
2955 .border_1()
2956 .border_color(cx.theme().colors().border)
2957 .rounded_md()
2958 .px_1()
2959 .child(styled_text)
2960 .into_any();
2961
2962 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), cx);
2963 let is_fully_visible =
2964 editor_width >= longest_line_width + PADDING_X + element_bounds.width;
2965
2966 let origin = if is_fully_visible {
2967 text_bounds.origin
2968 + point(
2969 longest_line_width + PADDING_X - scroll_pixel_position.x,
2970 edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
2971 )
2972 } else {
2973 let target_above =
2974 DisplayRow(edit_start.row().0.saturating_sub(line_count as u32));
2975 let row_target = if visible_row_range
2976 .contains(&DisplayRow(target_above.0.saturating_sub(1)))
2977 {
2978 target_above
2979 } else {
2980 DisplayRow(edit_end.row().0 + 1)
2981 };
2982
2983 text_bounds.origin
2984 + point(
2985 -scroll_pixel_position.x,
2986 row_target.as_f32() * line_height - scroll_pixel_position.y,
2987 )
2988 };
2989
2990 element.prepaint_as_root(origin, element_bounds.into(), cx);
2991 Some(element)
2992 }
2993 }
2994 }
2995
2996 fn layout_mouse_context_menu(
2997 &self,
2998 editor_snapshot: &EditorSnapshot,
2999 visible_range: Range<DisplayRow>,
3000 content_origin: gpui::Point<Pixels>,
3001 cx: &mut WindowContext,
3002 ) -> Option<AnyElement> {
3003 let position = self.editor.update(cx, |editor, cx| {
3004 let visible_start_point = editor.display_to_pixel_point(
3005 DisplayPoint::new(visible_range.start, 0),
3006 editor_snapshot,
3007 cx,
3008 )?;
3009 let visible_end_point = editor.display_to_pixel_point(
3010 DisplayPoint::new(visible_range.end, 0),
3011 editor_snapshot,
3012 cx,
3013 )?;
3014
3015 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3016 let (source_display_point, position) = match mouse_context_menu.position {
3017 MenuPosition::PinnedToScreen(point) => (None, point),
3018 MenuPosition::PinnedToEditor { source, offset } => {
3019 let source_display_point = source.to_display_point(editor_snapshot);
3020 let source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
3021 let position = content_origin + source_point + offset;
3022 (Some(source_display_point), position)
3023 }
3024 };
3025
3026 let source_included = source_display_point.map_or(true, |source_display_point| {
3027 visible_range
3028 .to_inclusive()
3029 .contains(&source_display_point.row())
3030 });
3031 let position_included =
3032 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3033 if !source_included && !position_included {
3034 None
3035 } else {
3036 Some(position)
3037 }
3038 })?;
3039
3040 let mut element = self.editor.update(cx, |editor, _| {
3041 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3042 let context_menu = mouse_context_menu.context_menu.clone();
3043
3044 Some(
3045 deferred(
3046 anchored()
3047 .position(position)
3048 .child(context_menu)
3049 .anchor(AnchorCorner::TopLeft)
3050 .snap_to_window_with_margin(px(8.)),
3051 )
3052 .with_priority(1)
3053 .into_any(),
3054 )
3055 })?;
3056
3057 element.prepaint_as_root(position, AvailableSpace::min_size(), cx);
3058 Some(element)
3059 }
3060
3061 #[allow(clippy::too_many_arguments)]
3062 fn layout_hover_popovers(
3063 &self,
3064 snapshot: &EditorSnapshot,
3065 hitbox: &Hitbox,
3066 text_hitbox: &Hitbox,
3067 visible_display_row_range: Range<DisplayRow>,
3068 content_origin: gpui::Point<Pixels>,
3069 scroll_pixel_position: gpui::Point<Pixels>,
3070 line_layouts: &[LineWithInvisibles],
3071 line_height: Pixels,
3072 em_width: Pixels,
3073 cx: &mut WindowContext,
3074 ) {
3075 struct MeasuredHoverPopover {
3076 element: AnyElement,
3077 size: Size<Pixels>,
3078 horizontal_offset: Pixels,
3079 }
3080
3081 let max_size = size(
3082 (120. * em_width) // Default size
3083 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3084 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3085 (16. * line_height) // Default size
3086 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3087 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3088 );
3089
3090 let hover_popovers = self.editor.update(cx, |editor, cx| {
3091 editor
3092 .hover_state
3093 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3094 });
3095 let Some((position, hover_popovers)) = hover_popovers else {
3096 return;
3097 };
3098
3099 // This is safe because we check on layout whether the required row is available
3100 let hovered_row_layout =
3101 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3102
3103 // Compute Hovered Point
3104 let x =
3105 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3106 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3107 let hovered_point = content_origin + point(x, y);
3108
3109 let mut overall_height = Pixels::ZERO;
3110 let mut measured_hover_popovers = Vec::new();
3111 for mut hover_popover in hover_popovers {
3112 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), cx);
3113 let horizontal_offset =
3114 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3115
3116 overall_height += HOVER_POPOVER_GAP + size.height;
3117
3118 measured_hover_popovers.push(MeasuredHoverPopover {
3119 element: hover_popover,
3120 size,
3121 horizontal_offset,
3122 });
3123 }
3124 overall_height += HOVER_POPOVER_GAP;
3125
3126 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
3127 let mut occlusion = div()
3128 .size_full()
3129 .occlude()
3130 .on_mouse_move(|_, cx| cx.stop_propagation())
3131 .into_any_element();
3132 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
3133 cx.defer_draw(occlusion, origin, 2);
3134 }
3135
3136 if hovered_point.y > overall_height {
3137 // There is enough space above. Render popovers above the hovered point
3138 let mut current_y = hovered_point.y;
3139 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3140 let size = popover.size;
3141 let popover_origin = point(
3142 hovered_point.x + popover.horizontal_offset,
3143 current_y - size.height,
3144 );
3145
3146 cx.defer_draw(popover.element, popover_origin, 2);
3147 if position != itertools::Position::Last {
3148 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3149 draw_occluder(size.width, origin, cx);
3150 }
3151
3152 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3153 }
3154 } else {
3155 // There is not enough space above. Render popovers below the hovered point
3156 let mut current_y = hovered_point.y + line_height;
3157 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3158 let size = popover.size;
3159 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3160
3161 cx.defer_draw(popover.element, popover_origin, 2);
3162 if position != itertools::Position::Last {
3163 let origin = point(popover_origin.x, popover_origin.y + size.height);
3164 draw_occluder(size.width, origin, cx);
3165 }
3166
3167 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3168 }
3169 }
3170 }
3171
3172 #[allow(clippy::too_many_arguments)]
3173 fn layout_signature_help(
3174 &self,
3175 hitbox: &Hitbox,
3176 content_origin: gpui::Point<Pixels>,
3177 scroll_pixel_position: gpui::Point<Pixels>,
3178 newest_selection_head: Option<DisplayPoint>,
3179 start_row: DisplayRow,
3180 line_layouts: &[LineWithInvisibles],
3181 line_height: Pixels,
3182 em_width: Pixels,
3183 cx: &mut WindowContext,
3184 ) {
3185 if !self.editor.focus_handle(cx).is_focused(cx) {
3186 return;
3187 }
3188 let Some(newest_selection_head) = newest_selection_head else {
3189 return;
3190 };
3191 let selection_row = newest_selection_head.row();
3192 if selection_row < start_row {
3193 return;
3194 }
3195 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3196 else {
3197 return;
3198 };
3199
3200 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3201 - scroll_pixel_position.x
3202 + content_origin.x;
3203 let start_y =
3204 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3205
3206 let max_size = size(
3207 (120. * em_width) // Default size
3208 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3209 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3210 (16. * line_height) // Default size
3211 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3212 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3213 );
3214
3215 let maybe_element = self.editor.update(cx, |editor, cx| {
3216 if let Some(popover) = editor.signature_help_state.popover_mut() {
3217 let element = popover.render(
3218 &self.style,
3219 max_size,
3220 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3221 cx,
3222 );
3223 Some(element)
3224 } else {
3225 None
3226 }
3227 });
3228 if let Some(mut element) = maybe_element {
3229 let window_size = cx.viewport_size();
3230 let size = element.layout_as_root(Size::<AvailableSpace>::default(), cx);
3231 let mut point = point(start_x, start_y - size.height);
3232
3233 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3234 if point.x + size.width >= window_size.width {
3235 point.x = window_size.width - size.width;
3236 }
3237
3238 cx.defer_draw(element, point, 1)
3239 }
3240 }
3241
3242 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
3243 cx.paint_layer(layout.hitbox.bounds, |cx| {
3244 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3245 let gutter_bg = cx.theme().colors().editor_gutter_background;
3246 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3247 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3248
3249 if let EditorMode::Full = layout.mode {
3250 let mut active_rows = layout.active_rows.iter().peekable();
3251 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3252 let mut end_row = start_row.0;
3253 while active_rows
3254 .peek()
3255 .map_or(false, |(active_row, has_selection)| {
3256 active_row.0 == end_row + 1
3257 && *has_selection == contains_non_empty_selection
3258 })
3259 {
3260 active_rows.next().unwrap();
3261 end_row += 1;
3262 }
3263
3264 if !contains_non_empty_selection {
3265 let highlight_h_range =
3266 match layout.position_map.snapshot.current_line_highlight {
3267 CurrentLineHighlight::Gutter => Some(Range {
3268 start: layout.hitbox.left(),
3269 end: layout.gutter_hitbox.right(),
3270 }),
3271 CurrentLineHighlight::Line => Some(Range {
3272 start: layout.text_hitbox.bounds.left(),
3273 end: layout.text_hitbox.bounds.right(),
3274 }),
3275 CurrentLineHighlight::All => Some(Range {
3276 start: layout.hitbox.left(),
3277 end: layout.hitbox.right(),
3278 }),
3279 CurrentLineHighlight::None => None,
3280 };
3281 if let Some(range) = highlight_h_range {
3282 let active_line_bg = cx.theme().colors().editor_active_line_background;
3283 let bounds = Bounds {
3284 origin: point(
3285 range.start,
3286 layout.hitbox.origin.y
3287 + (start_row.as_f32() - scroll_top)
3288 * layout.position_map.line_height,
3289 ),
3290 size: size(
3291 range.end - range.start,
3292 layout.position_map.line_height
3293 * (end_row - start_row.0 + 1) as f32,
3294 ),
3295 };
3296 cx.paint_quad(fill(bounds, active_line_bg));
3297 }
3298 }
3299 }
3300
3301 let mut paint_highlight =
3302 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3303 let origin = point(
3304 layout.hitbox.origin.x,
3305 layout.hitbox.origin.y
3306 + (highlight_row_start.as_f32() - scroll_top)
3307 * layout.position_map.line_height,
3308 );
3309 let size = size(
3310 layout.hitbox.size.width,
3311 layout.position_map.line_height
3312 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3313 );
3314 cx.paint_quad(fill(Bounds { origin, size }, color));
3315 };
3316
3317 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
3318 for (&new_row, &new_color) in &layout.highlighted_rows {
3319 match &mut current_paint {
3320 Some((current_color, current_range)) => {
3321 let current_color = *current_color;
3322 let new_range_started = current_color != new_color
3323 || current_range.end.next_row() != new_row;
3324 if new_range_started {
3325 paint_highlight(
3326 current_range.start,
3327 current_range.end,
3328 current_color,
3329 );
3330 current_paint = Some((new_color, new_row..new_row));
3331 continue;
3332 } else {
3333 current_range.end = current_range.end.next_row();
3334 }
3335 }
3336 None => current_paint = Some((new_color, new_row..new_row)),
3337 };
3338 }
3339 if let Some((color, range)) = current_paint {
3340 paint_highlight(range.start, range.end, color);
3341 }
3342
3343 let scroll_left =
3344 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
3345
3346 for (wrap_position, active) in layout.wrap_guides.iter() {
3347 let x = (layout.text_hitbox.origin.x
3348 + *wrap_position
3349 + layout.position_map.em_width / 2.)
3350 - scroll_left;
3351
3352 let show_scrollbars = layout
3353 .scrollbar_layout
3354 .as_ref()
3355 .map_or(false, |scrollbar| scrollbar.visible);
3356 if x < layout.text_hitbox.origin.x
3357 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
3358 {
3359 continue;
3360 }
3361
3362 let color = if *active {
3363 cx.theme().colors().editor_active_wrap_guide
3364 } else {
3365 cx.theme().colors().editor_wrap_guide
3366 };
3367 cx.paint_quad(fill(
3368 Bounds {
3369 origin: point(x, layout.text_hitbox.origin.y),
3370 size: size(px(1.), layout.text_hitbox.size.height),
3371 },
3372 color,
3373 ));
3374 }
3375 }
3376 })
3377 }
3378
3379 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3380 let Some(indent_guides) = &layout.indent_guides else {
3381 return;
3382 };
3383
3384 let faded_color = |color: Hsla, alpha: f32| {
3385 let mut faded = color;
3386 faded.a = alpha;
3387 faded
3388 };
3389
3390 for indent_guide in indent_guides {
3391 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
3392 let settings = indent_guide.settings;
3393
3394 // TODO fixed for now, expose them through themes later
3395 const INDENT_AWARE_ALPHA: f32 = 0.2;
3396 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
3397 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
3398 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
3399
3400 let line_color = match (settings.coloring, indent_guide.active) {
3401 (IndentGuideColoring::Disabled, _) => None,
3402 (IndentGuideColoring::Fixed, false) => {
3403 Some(cx.theme().colors().editor_indent_guide)
3404 }
3405 (IndentGuideColoring::Fixed, true) => {
3406 Some(cx.theme().colors().editor_indent_guide_active)
3407 }
3408 (IndentGuideColoring::IndentAware, false) => {
3409 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
3410 }
3411 (IndentGuideColoring::IndentAware, true) => {
3412 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
3413 }
3414 };
3415
3416 let background_color = match (settings.background_coloring, indent_guide.active) {
3417 (IndentGuideBackgroundColoring::Disabled, _) => None,
3418 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
3419 indent_accent_colors,
3420 INDENT_AWARE_BACKGROUND_ALPHA,
3421 )),
3422 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
3423 indent_accent_colors,
3424 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
3425 )),
3426 };
3427
3428 let requested_line_width = if indent_guide.active {
3429 settings.active_line_width
3430 } else {
3431 settings.line_width
3432 }
3433 .clamp(1, 10);
3434 let mut line_indicator_width = 0.;
3435 if let Some(color) = line_color {
3436 cx.paint_quad(fill(
3437 Bounds {
3438 origin: indent_guide.origin,
3439 size: size(px(requested_line_width as f32), indent_guide.length),
3440 },
3441 color,
3442 ));
3443 line_indicator_width = requested_line_width as f32;
3444 }
3445
3446 if let Some(color) = background_color {
3447 let width = indent_guide.single_indent_width - px(line_indicator_width);
3448 cx.paint_quad(fill(
3449 Bounds {
3450 origin: point(
3451 indent_guide.origin.x + px(line_indicator_width),
3452 indent_guide.origin.y,
3453 ),
3454 size: size(width, indent_guide.length),
3455 },
3456 color,
3457 ));
3458 }
3459 }
3460 }
3461
3462 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3463 let line_height = layout.position_map.line_height;
3464 let scroll_position = layout.position_map.snapshot.scroll_position();
3465 let scroll_top = scroll_position.y * line_height;
3466
3467 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
3468
3469 for (ix, line) in layout.line_numbers.iter().enumerate() {
3470 if let Some(line) = line {
3471 let line_origin = layout.gutter_hitbox.origin
3472 + point(
3473 layout.gutter_hitbox.size.width
3474 - line.width
3475 - layout.gutter_dimensions.right_padding,
3476 ix as f32 * line_height - (scroll_top % line_height),
3477 );
3478
3479 line.paint(line_origin, line_height, cx).log_err();
3480 }
3481 }
3482 }
3483
3484 fn paint_diff_hunks(layout: &mut EditorLayout, cx: &mut WindowContext) {
3485 if layout.display_hunks.is_empty() {
3486 return;
3487 }
3488
3489 let line_height = layout.position_map.line_height;
3490 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3491 for (hunk, hitbox) in &layout.display_hunks {
3492 let hunk_to_paint = match hunk {
3493 DisplayDiffHunk::Folded { .. } => {
3494 let hunk_bounds = Self::diff_hunk_bounds(
3495 &layout.position_map.snapshot,
3496 line_height,
3497 layout.gutter_hitbox.bounds,
3498 hunk,
3499 );
3500 Some((
3501 hunk_bounds,
3502 cx.theme().status().modified,
3503 Corners::all(px(0.)),
3504 ))
3505 }
3506 DisplayDiffHunk::Unfolded { status, .. } => {
3507 hitbox.as_ref().map(|hunk_hitbox| match status {
3508 DiffHunkStatus::Added => (
3509 hunk_hitbox.bounds,
3510 cx.theme().status().created,
3511 Corners::all(px(0.)),
3512 ),
3513 DiffHunkStatus::Modified => (
3514 hunk_hitbox.bounds,
3515 cx.theme().status().modified,
3516 Corners::all(px(0.)),
3517 ),
3518 DiffHunkStatus::Removed => (
3519 Bounds::new(
3520 point(
3521 hunk_hitbox.origin.x - hunk_hitbox.size.width,
3522 hunk_hitbox.origin.y,
3523 ),
3524 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
3525 ),
3526 cx.theme().status().deleted,
3527 Corners::all(1. * line_height),
3528 ),
3529 })
3530 }
3531 };
3532
3533 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
3534 cx.paint_quad(quad(
3535 hunk_bounds,
3536 corner_radii,
3537 background_color,
3538 Edges::default(),
3539 transparent_black(),
3540 ));
3541 }
3542 }
3543 });
3544 }
3545
3546 pub(super) fn diff_hunk_bounds(
3547 snapshot: &EditorSnapshot,
3548 line_height: Pixels,
3549 gutter_bounds: Bounds<Pixels>,
3550 hunk: &DisplayDiffHunk,
3551 ) -> Bounds<Pixels> {
3552 let scroll_position = snapshot.scroll_position();
3553 let scroll_top = scroll_position.y * line_height;
3554
3555 match hunk {
3556 DisplayDiffHunk::Folded { display_row, .. } => {
3557 let start_y = display_row.as_f32() * line_height - scroll_top;
3558 let end_y = start_y + line_height;
3559
3560 let width = Self::diff_hunk_strip_width(line_height);
3561 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3562 let highlight_size = size(width, end_y - start_y);
3563 Bounds::new(highlight_origin, highlight_size)
3564 }
3565 DisplayDiffHunk::Unfolded {
3566 display_row_range,
3567 status,
3568 ..
3569 } => match status {
3570 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
3571 let start_row = display_row_range.start;
3572 let end_row = display_row_range.end;
3573 // If we're in a multibuffer, row range span might include an
3574 // excerpt header, so if we were to draw the marker straight away,
3575 // the hunk might include the rows of that header.
3576 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
3577 // Instead, we simply check whether the range we're dealing with includes
3578 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
3579 let end_row_in_current_excerpt = snapshot
3580 .blocks_in_range(start_row..end_row)
3581 .find_map(|(start_row, block)| {
3582 if matches!(block, Block::ExcerptBoundary { .. }) {
3583 Some(start_row)
3584 } else {
3585 None
3586 }
3587 })
3588 .unwrap_or(end_row);
3589
3590 let start_y = start_row.as_f32() * line_height - scroll_top;
3591 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
3592
3593 let width = Self::diff_hunk_strip_width(line_height);
3594 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3595 let highlight_size = size(width, end_y - start_y);
3596 Bounds::new(highlight_origin, highlight_size)
3597 }
3598 DiffHunkStatus::Removed => {
3599 let row = display_row_range.start;
3600
3601 let offset = line_height / 2.;
3602 let start_y = row.as_f32() * line_height - offset - scroll_top;
3603 let end_y = start_y + line_height;
3604
3605 let width = (0.35 * line_height).floor();
3606 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
3607 let highlight_size = size(width, end_y - start_y);
3608 Bounds::new(highlight_origin, highlight_size)
3609 }
3610 },
3611 }
3612 }
3613
3614 /// Returns the width of the diff strip that will be displayed in the gutter.
3615 pub(super) fn diff_hunk_strip_width(line_height: Pixels) -> Pixels {
3616 // We floor the value to prevent pixel rounding.
3617 (0.275 * line_height).floor()
3618 }
3619
3620 fn paint_gutter_indicators(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3621 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3622 cx.with_element_namespace("crease_toggles", |cx| {
3623 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
3624 crease_toggle.paint(cx);
3625 }
3626 });
3627
3628 for test_indicator in layout.test_indicators.iter_mut() {
3629 test_indicator.paint(cx);
3630 }
3631
3632 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
3633 indicator.paint(cx);
3634 }
3635 });
3636 }
3637
3638 fn paint_gutter_highlights(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3639 for (_, hunk_hitbox) in &layout.display_hunks {
3640 if let Some(hunk_hitbox) = hunk_hitbox {
3641 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
3642 }
3643 }
3644
3645 let show_git_gutter = layout
3646 .position_map
3647 .snapshot
3648 .show_git_diff_gutter
3649 .unwrap_or_else(|| {
3650 matches!(
3651 ProjectSettings::get_global(cx).git.git_gutter,
3652 Some(GitGutterSetting::TrackedFiles)
3653 )
3654 });
3655 if show_git_gutter {
3656 Self::paint_diff_hunks(layout, cx)
3657 }
3658
3659 let highlight_width = 0.275 * layout.position_map.line_height;
3660 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
3661 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3662 for (range, color) in &layout.highlighted_gutter_ranges {
3663 let start_row = if range.start.row() < layout.visible_display_row_range.start {
3664 layout.visible_display_row_range.start - DisplayRow(1)
3665 } else {
3666 range.start.row()
3667 };
3668 let end_row = if range.end.row() > layout.visible_display_row_range.end {
3669 layout.visible_display_row_range.end + DisplayRow(1)
3670 } else {
3671 range.end.row()
3672 };
3673
3674 let start_y = layout.gutter_hitbox.top()
3675 + start_row.0 as f32 * layout.position_map.line_height
3676 - layout.position_map.scroll_pixel_position.y;
3677 let end_y = layout.gutter_hitbox.top()
3678 + (end_row.0 + 1) as f32 * layout.position_map.line_height
3679 - layout.position_map.scroll_pixel_position.y;
3680 let bounds = Bounds::from_corners(
3681 point(layout.gutter_hitbox.left(), start_y),
3682 point(layout.gutter_hitbox.left() + highlight_width, end_y),
3683 );
3684 cx.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
3685 }
3686 });
3687 }
3688
3689 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3690 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
3691 return;
3692 };
3693
3694 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3695 for mut blame_element in blamed_display_rows.into_iter() {
3696 blame_element.paint(cx);
3697 }
3698 })
3699 }
3700
3701 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3702 cx.with_content_mask(
3703 Some(ContentMask {
3704 bounds: layout.text_hitbox.bounds,
3705 }),
3706 |cx| {
3707 let cursor_style = if self
3708 .editor
3709 .read(cx)
3710 .hovered_link_state
3711 .as_ref()
3712 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
3713 {
3714 CursorStyle::PointingHand
3715 } else {
3716 CursorStyle::IBeam
3717 };
3718 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
3719
3720 let invisible_display_ranges = self.paint_highlights(layout, cx);
3721 self.paint_lines(&invisible_display_ranges, layout, cx);
3722 self.paint_redactions(layout, cx);
3723 self.paint_cursors(layout, cx);
3724 self.paint_inline_blame(layout, cx);
3725 cx.with_element_namespace("crease_trailers", |cx| {
3726 for trailer in layout.crease_trailers.iter_mut().flatten() {
3727 trailer.element.paint(cx);
3728 }
3729 });
3730 },
3731 )
3732 }
3733
3734 fn paint_highlights(
3735 &mut self,
3736 layout: &mut EditorLayout,
3737 cx: &mut WindowContext,
3738 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
3739 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3740 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
3741 let line_end_overshoot = 0.15 * layout.position_map.line_height;
3742 for (range, color) in &layout.highlighted_ranges {
3743 self.paint_highlighted_range(
3744 range.clone(),
3745 *color,
3746 Pixels::ZERO,
3747 line_end_overshoot,
3748 layout,
3749 cx,
3750 );
3751 }
3752
3753 let corner_radius = 0.15 * layout.position_map.line_height;
3754
3755 for (player_color, selections) in &layout.selections {
3756 for selection in selections.iter() {
3757 self.paint_highlighted_range(
3758 selection.range.clone(),
3759 player_color.selection,
3760 corner_radius,
3761 corner_radius * 2.,
3762 layout,
3763 cx,
3764 );
3765
3766 if selection.is_local && !selection.range.is_empty() {
3767 invisible_display_ranges.push(selection.range.clone());
3768 }
3769 }
3770 }
3771 invisible_display_ranges
3772 })
3773 }
3774
3775 fn paint_lines(
3776 &mut self,
3777 invisible_display_ranges: &[Range<DisplayPoint>],
3778 layout: &mut EditorLayout,
3779 cx: &mut WindowContext,
3780 ) {
3781 let whitespace_setting = self
3782 .editor
3783 .read(cx)
3784 .buffer
3785 .read(cx)
3786 .settings_at(0, cx)
3787 .show_whitespaces;
3788
3789 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
3790 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
3791 line_with_invisibles.draw(
3792 layout,
3793 row,
3794 layout.content_origin,
3795 whitespace_setting,
3796 invisible_display_ranges,
3797 cx,
3798 )
3799 }
3800
3801 for line_element in &mut layout.line_elements {
3802 line_element.paint(cx);
3803 }
3804 }
3805
3806 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3807 if layout.redacted_ranges.is_empty() {
3808 return;
3809 }
3810
3811 let line_end_overshoot = layout.line_end_overshoot();
3812
3813 // A softer than perfect black
3814 let redaction_color = gpui::rgb(0x0e1111);
3815
3816 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3817 for range in layout.redacted_ranges.iter() {
3818 self.paint_highlighted_range(
3819 range.clone(),
3820 redaction_color.into(),
3821 Pixels::ZERO,
3822 line_end_overshoot,
3823 layout,
3824 cx,
3825 );
3826 }
3827 });
3828 }
3829
3830 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3831 for cursor in &mut layout.visible_cursors {
3832 cursor.paint(layout.content_origin, cx);
3833 }
3834 }
3835
3836 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3837 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
3838 return;
3839 };
3840
3841 let thumb_bounds = scrollbar_layout.thumb_bounds();
3842 if scrollbar_layout.visible {
3843 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
3844 cx.paint_quad(quad(
3845 scrollbar_layout.hitbox.bounds,
3846 Corners::default(),
3847 cx.theme().colors().scrollbar_track_background,
3848 Edges {
3849 top: Pixels::ZERO,
3850 right: Pixels::ZERO,
3851 bottom: Pixels::ZERO,
3852 left: ScrollbarLayout::BORDER_WIDTH,
3853 },
3854 cx.theme().colors().scrollbar_track_border,
3855 ));
3856
3857 let fast_markers =
3858 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
3859 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
3860 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
3861
3862 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
3863 for marker in markers.iter().chain(&fast_markers) {
3864 let mut marker = marker.clone();
3865 marker.bounds.origin += scrollbar_layout.hitbox.origin;
3866 cx.paint_quad(marker);
3867 }
3868
3869 cx.paint_quad(quad(
3870 thumb_bounds,
3871 Corners::default(),
3872 cx.theme().colors().scrollbar_thumb_background,
3873 Edges {
3874 top: Pixels::ZERO,
3875 right: Pixels::ZERO,
3876 bottom: Pixels::ZERO,
3877 left: ScrollbarLayout::BORDER_WIDTH,
3878 },
3879 cx.theme().colors().scrollbar_thumb_border,
3880 ));
3881 });
3882 }
3883
3884 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
3885
3886 let row_height = scrollbar_layout.row_height;
3887 let row_range = scrollbar_layout.visible_row_range.clone();
3888
3889 cx.on_mouse_event({
3890 let editor = self.editor.clone();
3891 let hitbox = scrollbar_layout.hitbox.clone();
3892 let mut mouse_position = cx.mouse_position();
3893 move |event: &MouseMoveEvent, phase, cx| {
3894 if phase == DispatchPhase::Capture {
3895 return;
3896 }
3897
3898 editor.update(cx, |editor, cx| {
3899 if event.pressed_button == Some(MouseButton::Left)
3900 && editor.scroll_manager.is_dragging_scrollbar()
3901 {
3902 let y = mouse_position.y;
3903 let new_y = event.position.y;
3904 if (hitbox.top()..hitbox.bottom()).contains(&y) {
3905 let mut position = editor.scroll_position(cx);
3906 position.y += (new_y - y) / row_height;
3907 if position.y < 0.0 {
3908 position.y = 0.0;
3909 }
3910 editor.set_scroll_position(position, cx);
3911 }
3912
3913 cx.stop_propagation();
3914 } else {
3915 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3916 if hitbox.is_hovered(cx) {
3917 editor.scroll_manager.show_scrollbar(cx);
3918 }
3919 }
3920 mouse_position = event.position;
3921 })
3922 }
3923 });
3924
3925 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
3926 cx.on_mouse_event({
3927 let editor = self.editor.clone();
3928 move |_: &MouseUpEvent, phase, cx| {
3929 if phase == DispatchPhase::Capture {
3930 return;
3931 }
3932
3933 editor.update(cx, |editor, cx| {
3934 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3935 cx.stop_propagation();
3936 });
3937 }
3938 });
3939 } else {
3940 cx.on_mouse_event({
3941 let editor = self.editor.clone();
3942 let hitbox = scrollbar_layout.hitbox.clone();
3943 move |event: &MouseDownEvent, phase, cx| {
3944 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
3945 return;
3946 }
3947
3948 editor.update(cx, |editor, cx| {
3949 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
3950
3951 let y = event.position.y;
3952 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
3953 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
3954 let top_row = center_row
3955 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
3956 let mut position = editor.scroll_position(cx);
3957 position.y = top_row as f32;
3958 editor.set_scroll_position(position, cx);
3959 } else {
3960 editor.scroll_manager.show_scrollbar(cx);
3961 }
3962
3963 cx.stop_propagation();
3964 });
3965 }
3966 });
3967 }
3968 }
3969
3970 fn collect_fast_scrollbar_markers(
3971 &self,
3972 layout: &EditorLayout,
3973 scrollbar_layout: &ScrollbarLayout,
3974 cx: &mut WindowContext,
3975 ) -> Vec<PaintQuad> {
3976 const LIMIT: usize = 100;
3977 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
3978 return vec![];
3979 }
3980 let cursor_ranges = layout
3981 .cursors
3982 .iter()
3983 .map(|(point, color)| ColoredRange {
3984 start: point.row(),
3985 end: point.row(),
3986 color: *color,
3987 })
3988 .collect_vec();
3989 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
3990 }
3991
3992 fn refresh_slow_scrollbar_markers(
3993 &self,
3994 layout: &EditorLayout,
3995 scrollbar_layout: &ScrollbarLayout,
3996 cx: &mut WindowContext,
3997 ) {
3998 self.editor.update(cx, |editor, cx| {
3999 if !editor.is_singleton(cx)
4000 || !editor
4001 .scrollbar_marker_state
4002 .should_refresh(scrollbar_layout.hitbox.size)
4003 {
4004 return;
4005 }
4006
4007 let scrollbar_layout = scrollbar_layout.clone();
4008 let background_highlights = editor.background_highlights.clone();
4009 let snapshot = layout.position_map.snapshot.clone();
4010 let theme = cx.theme().clone();
4011 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4012
4013 editor.scrollbar_marker_state.dirty = false;
4014 editor.scrollbar_marker_state.pending_refresh =
4015 Some(cx.spawn(|editor, mut cx| async move {
4016 let scrollbar_size = scrollbar_layout.hitbox.size;
4017 let scrollbar_markers = cx
4018 .background_executor()
4019 .spawn(async move {
4020 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4021 let mut marker_quads = Vec::new();
4022 if scrollbar_settings.git_diff {
4023 let marker_row_ranges = snapshot
4024 .diff_map
4025 .diff_hunks(&snapshot.buffer_snapshot)
4026 .map(|hunk| {
4027 let start_display_row =
4028 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4029 .to_display_point(&snapshot.display_snapshot)
4030 .row();
4031 let mut end_display_row =
4032 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4033 .to_display_point(&snapshot.display_snapshot)
4034 .row();
4035 if end_display_row != start_display_row {
4036 end_display_row.0 -= 1;
4037 }
4038 let color = match hunk_status(&hunk) {
4039 DiffHunkStatus::Added => theme.status().created,
4040 DiffHunkStatus::Modified => theme.status().modified,
4041 DiffHunkStatus::Removed => theme.status().deleted,
4042 };
4043 ColoredRange {
4044 start: start_display_row,
4045 end: end_display_row,
4046 color,
4047 }
4048 });
4049
4050 marker_quads.extend(
4051 scrollbar_layout
4052 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4053 );
4054 }
4055
4056 for (background_highlight_id, (_, background_ranges)) in
4057 background_highlights.iter()
4058 {
4059 let is_search_highlights = *background_highlight_id
4060 == TypeId::of::<BufferSearchHighlights>();
4061 let is_symbol_occurrences = *background_highlight_id
4062 == TypeId::of::<DocumentHighlightRead>()
4063 || *background_highlight_id
4064 == TypeId::of::<DocumentHighlightWrite>();
4065 if (is_search_highlights && scrollbar_settings.search_results)
4066 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
4067 {
4068 let mut color = theme.status().info;
4069 if is_symbol_occurrences {
4070 color.fade_out(0.5);
4071 }
4072 let marker_row_ranges = background_ranges.iter().map(|range| {
4073 let display_start = range
4074 .start
4075 .to_display_point(&snapshot.display_snapshot);
4076 let display_end =
4077 range.end.to_display_point(&snapshot.display_snapshot);
4078 ColoredRange {
4079 start: display_start.row(),
4080 end: display_end.row(),
4081 color,
4082 }
4083 });
4084 marker_quads.extend(
4085 scrollbar_layout
4086 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
4087 );
4088 }
4089 }
4090
4091 if scrollbar_settings.diagnostics {
4092 let diagnostics = snapshot
4093 .buffer_snapshot
4094 .diagnostics_in_range::<_, Point>(
4095 Point::zero()..max_point,
4096 false,
4097 )
4098 // We want to sort by severity, in order to paint the most severe diagnostics last.
4099 .sorted_by_key(|diagnostic| {
4100 std::cmp::Reverse(diagnostic.diagnostic.severity)
4101 });
4102
4103 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
4104 let start_display = diagnostic
4105 .range
4106 .start
4107 .to_display_point(&snapshot.display_snapshot);
4108 let end_display = diagnostic
4109 .range
4110 .end
4111 .to_display_point(&snapshot.display_snapshot);
4112 let color = match diagnostic.diagnostic.severity {
4113 DiagnosticSeverity::ERROR => theme.status().error,
4114 DiagnosticSeverity::WARNING => theme.status().warning,
4115 DiagnosticSeverity::INFORMATION => theme.status().info,
4116 _ => theme.status().hint,
4117 };
4118 ColoredRange {
4119 start: start_display.row(),
4120 end: end_display.row(),
4121 color,
4122 }
4123 });
4124 marker_quads.extend(
4125 scrollbar_layout
4126 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
4127 );
4128 }
4129
4130 Arc::from(marker_quads)
4131 })
4132 .await;
4133
4134 editor.update(&mut cx, |editor, cx| {
4135 editor.scrollbar_marker_state.markers = scrollbar_markers;
4136 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
4137 editor.scrollbar_marker_state.pending_refresh = None;
4138 cx.notify();
4139 })?;
4140
4141 Ok(())
4142 }));
4143 });
4144 }
4145
4146 #[allow(clippy::too_many_arguments)]
4147 fn paint_highlighted_range(
4148 &self,
4149 range: Range<DisplayPoint>,
4150 color: Hsla,
4151 corner_radius: Pixels,
4152 line_end_overshoot: Pixels,
4153 layout: &EditorLayout,
4154 cx: &mut WindowContext,
4155 ) {
4156 let start_row = layout.visible_display_row_range.start;
4157 let end_row = layout.visible_display_row_range.end;
4158 if range.start != range.end {
4159 let row_range = if range.end.column() == 0 {
4160 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
4161 } else {
4162 cmp::max(range.start.row(), start_row)
4163 ..cmp::min(range.end.row().next_row(), end_row)
4164 };
4165
4166 let highlighted_range = HighlightedRange {
4167 color,
4168 line_height: layout.position_map.line_height,
4169 corner_radius,
4170 start_y: layout.content_origin.y
4171 + row_range.start.as_f32() * layout.position_map.line_height
4172 - layout.position_map.scroll_pixel_position.y,
4173 lines: row_range
4174 .iter_rows()
4175 .map(|row| {
4176 let line_layout =
4177 &layout.position_map.line_layouts[row.minus(start_row) as usize];
4178 HighlightedRangeLine {
4179 start_x: if row == range.start.row() {
4180 layout.content_origin.x
4181 + line_layout.x_for_index(range.start.column() as usize)
4182 - layout.position_map.scroll_pixel_position.x
4183 } else {
4184 layout.content_origin.x
4185 - layout.position_map.scroll_pixel_position.x
4186 },
4187 end_x: if row == range.end.row() {
4188 layout.content_origin.x
4189 + line_layout.x_for_index(range.end.column() as usize)
4190 - layout.position_map.scroll_pixel_position.x
4191 } else {
4192 layout.content_origin.x + line_layout.width + line_end_overshoot
4193 - layout.position_map.scroll_pixel_position.x
4194 },
4195 }
4196 })
4197 .collect(),
4198 };
4199
4200 highlighted_range.paint(layout.text_hitbox.bounds, cx);
4201 }
4202 }
4203
4204 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4205 if let Some(mut inline_blame) = layout.inline_blame.take() {
4206 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
4207 inline_blame.paint(cx);
4208 })
4209 }
4210 }
4211
4212 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4213 for mut block in layout.blocks.drain(..) {
4214 block.element.paint(cx);
4215 }
4216 }
4217
4218 fn paint_inline_completion_popover(
4219 &mut self,
4220 layout: &mut EditorLayout,
4221 cx: &mut WindowContext,
4222 ) {
4223 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
4224 inline_completion_popover.paint(cx);
4225 }
4226 }
4227
4228 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
4229 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
4230 mouse_context_menu.paint(cx);
4231 }
4232 }
4233
4234 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
4235 cx.on_mouse_event({
4236 let position_map = layout.position_map.clone();
4237 let editor = self.editor.clone();
4238 let hitbox = layout.hitbox.clone();
4239 let mut delta = ScrollDelta::default();
4240
4241 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
4242 // accidentally turn off their scrolling.
4243 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
4244
4245 move |event: &ScrollWheelEvent, phase, cx| {
4246 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
4247 delta = delta.coalesce(event.delta);
4248 editor.update(cx, |editor, cx| {
4249 let position_map: &PositionMap = &position_map;
4250
4251 let line_height = position_map.line_height;
4252 let max_glyph_width = position_map.em_width;
4253 let (delta, axis) = match delta {
4254 gpui::ScrollDelta::Pixels(mut pixels) => {
4255 //Trackpad
4256 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
4257 (pixels, axis)
4258 }
4259
4260 gpui::ScrollDelta::Lines(lines) => {
4261 //Not trackpad
4262 let pixels =
4263 point(lines.x * max_glyph_width, lines.y * line_height);
4264 (pixels, None)
4265 }
4266 };
4267
4268 let current_scroll_position = position_map.snapshot.scroll_position();
4269 let x = (current_scroll_position.x * max_glyph_width
4270 - (delta.x * scroll_sensitivity))
4271 / max_glyph_width;
4272 let y = (current_scroll_position.y * line_height
4273 - (delta.y * scroll_sensitivity))
4274 / line_height;
4275 let mut scroll_position =
4276 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
4277 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
4278 if forbid_vertical_scroll {
4279 scroll_position.y = current_scroll_position.y;
4280 }
4281
4282 if scroll_position != current_scroll_position {
4283 editor.scroll(scroll_position, axis, cx);
4284 cx.stop_propagation();
4285 } else if y < 0. {
4286 // Due to clamping, we may fail to detect cases of overscroll to the top;
4287 // We want the scroll manager to get an update in such cases and detect the change of direction
4288 // on the next frame.
4289 cx.notify();
4290 }
4291 });
4292 }
4293 }
4294 });
4295 }
4296
4297 fn paint_mouse_listeners(
4298 &mut self,
4299 layout: &EditorLayout,
4300 hovered_hunk: Option<HoveredHunk>,
4301 cx: &mut WindowContext,
4302 ) {
4303 self.paint_scroll_wheel_listener(layout, cx);
4304
4305 cx.on_mouse_event({
4306 let position_map = layout.position_map.clone();
4307 let editor = self.editor.clone();
4308 let text_hitbox = layout.text_hitbox.clone();
4309 let gutter_hitbox = layout.gutter_hitbox.clone();
4310
4311 move |event: &MouseDownEvent, phase, cx| {
4312 if phase == DispatchPhase::Bubble {
4313 match event.button {
4314 MouseButton::Left => editor.update(cx, |editor, cx| {
4315 Self::mouse_left_down(
4316 editor,
4317 event,
4318 hovered_hunk.clone(),
4319 &position_map,
4320 &text_hitbox,
4321 &gutter_hitbox,
4322 cx,
4323 );
4324 }),
4325 MouseButton::Right => editor.update(cx, |editor, cx| {
4326 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
4327 }),
4328 MouseButton::Middle => editor.update(cx, |editor, cx| {
4329 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
4330 }),
4331 _ => {}
4332 };
4333 }
4334 }
4335 });
4336
4337 cx.on_mouse_event({
4338 let editor = self.editor.clone();
4339 let position_map = layout.position_map.clone();
4340 let text_hitbox = layout.text_hitbox.clone();
4341
4342 move |event: &MouseUpEvent, phase, cx| {
4343 if phase == DispatchPhase::Bubble {
4344 editor.update(cx, |editor, cx| {
4345 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
4346 });
4347 }
4348 }
4349 });
4350 cx.on_mouse_event({
4351 let position_map = layout.position_map.clone();
4352 let editor = self.editor.clone();
4353 let text_hitbox = layout.text_hitbox.clone();
4354 let gutter_hitbox = layout.gutter_hitbox.clone();
4355
4356 move |event: &MouseMoveEvent, phase, cx| {
4357 if phase == DispatchPhase::Bubble {
4358 editor.update(cx, |editor, cx| {
4359 if editor.hover_state.focused(cx) {
4360 return;
4361 }
4362 if event.pressed_button == Some(MouseButton::Left)
4363 || event.pressed_button == Some(MouseButton::Middle)
4364 {
4365 Self::mouse_dragged(
4366 editor,
4367 event,
4368 &position_map,
4369 text_hitbox.bounds,
4370 cx,
4371 )
4372 }
4373
4374 Self::mouse_moved(
4375 editor,
4376 event,
4377 &position_map,
4378 &text_hitbox,
4379 &gutter_hitbox,
4380 cx,
4381 )
4382 });
4383 }
4384 }
4385 });
4386 }
4387
4388 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
4389 bounds.upper_right().x - self.style.scrollbar_width
4390 }
4391
4392 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
4393 let style = &self.style;
4394 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4395 let layout = cx
4396 .text_system()
4397 .shape_line(
4398 SharedString::from(" ".repeat(column)),
4399 font_size,
4400 &[TextRun {
4401 len: column,
4402 font: style.text.font(),
4403 color: Hsla::default(),
4404 background_color: None,
4405 underline: None,
4406 strikethrough: None,
4407 }],
4408 )
4409 .unwrap();
4410
4411 layout.width
4412 }
4413
4414 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
4415 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
4416 self.column_pixels(digit_count, cx)
4417 }
4418}
4419
4420fn jump_data(
4421 snapshot: &EditorSnapshot,
4422 block_row_start: DisplayRow,
4423 height: u32,
4424 for_excerpt: &ExcerptInfo,
4425 cx: &mut WindowContext<'_>,
4426) -> JumpData {
4427 let range = &for_excerpt.range;
4428 let buffer = &for_excerpt.buffer;
4429 let jump_path = project::File::from_dyn(buffer.file()).map(|file| ProjectPath {
4430 worktree_id: file.worktree_id(cx),
4431 path: file.path.clone(),
4432 });
4433 let jump_anchor = range
4434 .primary
4435 .as_ref()
4436 .map_or(range.context.start, |primary| primary.start);
4437
4438 let excerpt_start = range.context.start;
4439 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
4440 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
4441 0
4442 } else {
4443 let excerpt_start_row = language::ToPoint::to_point(&jump_anchor, buffer).row;
4444 jump_position.row - excerpt_start_row
4445 };
4446 let line_offset_from_top = block_row_start.0 + height + offset_from_excerpt_start
4447 - snapshot
4448 .scroll_anchor
4449 .scroll_position(&snapshot.display_snapshot)
4450 .y as u32;
4451 JumpData {
4452 excerpt_id: for_excerpt.id,
4453 anchor: jump_anchor,
4454 position: language::ToPoint::to_point(&jump_anchor, buffer),
4455 path: jump_path,
4456 line_offset_from_top,
4457 }
4458}
4459
4460fn inline_completion_popover_text(
4461 editor_snapshot: &EditorSnapshot,
4462 edits: &Vec<(Range<Anchor>, String)>,
4463 cx: &WindowContext,
4464) -> (String, Vec<(Range<usize>, HighlightStyle)>) {
4465 let edit_start = edits
4466 .first()
4467 .unwrap()
4468 .0
4469 .start
4470 .to_display_point(editor_snapshot);
4471
4472 let mut text = String::new();
4473 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
4474 let mut highlights = Vec::new();
4475 for (old_range, new_text) in edits {
4476 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
4477 text.extend(
4478 editor_snapshot
4479 .buffer_snapshot
4480 .chunks(offset..old_offset_range.start, false)
4481 .map(|chunk| chunk.text),
4482 );
4483 offset = old_offset_range.end;
4484
4485 let start = text.len();
4486 text.push_str(new_text);
4487 let end = text.len();
4488 highlights.push((
4489 start..end,
4490 HighlightStyle {
4491 background_color: Some(cx.theme().status().created_background),
4492 ..Default::default()
4493 },
4494 ));
4495 }
4496
4497 let edit_end = edits
4498 .last()
4499 .unwrap()
4500 .0
4501 .end
4502 .to_display_point(editor_snapshot);
4503 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
4504 .to_offset(editor_snapshot, Bias::Right);
4505 text.extend(
4506 editor_snapshot
4507 .buffer_snapshot
4508 .chunks(offset..end_of_line, false)
4509 .map(|chunk| chunk.text),
4510 );
4511
4512 (text, highlights)
4513}
4514
4515fn all_edits_insertions_or_deletions(
4516 edits: &Vec<(Range<Anchor>, String)>,
4517 snapshot: &MultiBufferSnapshot,
4518) -> bool {
4519 let mut all_insertions = true;
4520 let mut all_deletions = true;
4521
4522 for (range, new_text) in edits.iter() {
4523 let range_is_empty = range.to_offset(&snapshot).is_empty();
4524 let text_is_empty = new_text.is_empty();
4525
4526 if range_is_empty != text_is_empty {
4527 if range_is_empty {
4528 all_deletions = false;
4529 } else {
4530 all_insertions = false;
4531 }
4532 } else {
4533 return false;
4534 }
4535
4536 if !all_insertions && !all_deletions {
4537 return false;
4538 }
4539 }
4540 all_insertions || all_deletions
4541}
4542
4543#[allow(clippy::too_many_arguments)]
4544fn prepaint_gutter_button(
4545 button: IconButton,
4546 row: DisplayRow,
4547 line_height: Pixels,
4548 gutter_dimensions: &GutterDimensions,
4549 scroll_pixel_position: gpui::Point<Pixels>,
4550 gutter_hitbox: &Hitbox,
4551 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
4552 cx: &mut WindowContext<'_>,
4553) -> AnyElement {
4554 let mut button = button.into_any_element();
4555 let available_space = size(
4556 AvailableSpace::MinContent,
4557 AvailableSpace::Definite(line_height),
4558 );
4559 let indicator_size = button.layout_as_root(available_space, cx);
4560
4561 let blame_width = gutter_dimensions.git_blame_entries_width;
4562 let gutter_width = rows_with_hunk_bounds
4563 .get(&row)
4564 .map(|bounds| bounds.size.width);
4565 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
4566
4567 let mut x = left_offset;
4568 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
4569 - indicator_size.width
4570 - left_offset;
4571 x += available_width / 2.;
4572
4573 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
4574 y += (line_height - indicator_size.height) / 2.;
4575
4576 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
4577 button
4578}
4579
4580fn render_inline_blame_entry(
4581 blame: &gpui::Model<GitBlame>,
4582 blame_entry: BlameEntry,
4583 style: &EditorStyle,
4584 workspace: Option<WeakView<Workspace>>,
4585 cx: &mut WindowContext<'_>,
4586) -> AnyElement {
4587 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4588
4589 let author = blame_entry.author.as_deref().unwrap_or_default();
4590 let summary_enabled = ProjectSettings::get_global(cx)
4591 .git
4592 .show_inline_commit_summary();
4593
4594 let text = match blame_entry.summary.as_ref() {
4595 Some(summary) if summary_enabled => {
4596 format!("{}, {} - {}", author, relative_timestamp, summary)
4597 }
4598 _ => format!("{}, {}", author, relative_timestamp),
4599 };
4600
4601 let details = blame.read(cx).details_for_entry(&blame_entry);
4602
4603 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
4604
4605 h_flex()
4606 .id("inline-blame")
4607 .w_full()
4608 .font_family(style.text.font().family)
4609 .text_color(cx.theme().status().hint)
4610 .line_height(style.text.line_height)
4611 .child(Icon::new(IconName::FileGit).color(Color::Hint))
4612 .child(text)
4613 .gap_2()
4614 .hoverable_tooltip(move |_| tooltip.clone().into())
4615 .into_any()
4616}
4617
4618fn render_blame_entry(
4619 ix: usize,
4620 blame: &gpui::Model<GitBlame>,
4621 blame_entry: BlameEntry,
4622 style: &EditorStyle,
4623 last_used_color: &mut Option<(PlayerColor, Oid)>,
4624 editor: View<Editor>,
4625 cx: &mut WindowContext<'_>,
4626) -> AnyElement {
4627 let mut sha_color = cx
4628 .theme()
4629 .players()
4630 .color_for_participant(blame_entry.sha.into());
4631 // If the last color we used is the same as the one we get for this line, but
4632 // the commit SHAs are different, then we try again to get a different color.
4633 match *last_used_color {
4634 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
4635 let index: u32 = blame_entry.sha.into();
4636 sha_color = cx.theme().players().color_for_participant(index + 1);
4637 }
4638 _ => {}
4639 };
4640 last_used_color.replace((sha_color, blame_entry.sha));
4641
4642 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
4643
4644 let short_commit_id = blame_entry.sha.display_short();
4645
4646 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
4647 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
4648
4649 let details = blame.read(cx).details_for_entry(&blame_entry);
4650
4651 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
4652
4653 let tooltip = cx.new_view(|_| {
4654 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
4655 });
4656
4657 h_flex()
4658 .w_full()
4659 .justify_between()
4660 .font_family(style.text.font().family)
4661 .line_height(style.text.line_height)
4662 .id(("blame", ix))
4663 .text_color(cx.theme().status().hint)
4664 .pr_2()
4665 .gap_2()
4666 .child(
4667 h_flex()
4668 .items_center()
4669 .gap_2()
4670 .child(div().text_color(sha_color.cursor).child(short_commit_id))
4671 .child(name),
4672 )
4673 .child(relative_timestamp)
4674 .on_mouse_down(MouseButton::Right, {
4675 let blame_entry = blame_entry.clone();
4676 let details = details.clone();
4677 move |event, cx| {
4678 deploy_blame_entry_context_menu(
4679 &blame_entry,
4680 details.as_ref(),
4681 editor.clone(),
4682 event.position,
4683 cx,
4684 );
4685 }
4686 })
4687 .hover(|style| style.bg(cx.theme().colors().element_hover))
4688 .when_some(
4689 details.and_then(|details| details.permalink),
4690 |this, url| {
4691 let url = url.clone();
4692 this.cursor_pointer().on_click(move |_, cx| {
4693 cx.stop_propagation();
4694 cx.open_url(url.as_str())
4695 })
4696 },
4697 )
4698 .hoverable_tooltip(move |_| tooltip.clone().into())
4699 .into_any()
4700}
4701
4702fn deploy_blame_entry_context_menu(
4703 blame_entry: &BlameEntry,
4704 details: Option<&CommitDetails>,
4705 editor: View<Editor>,
4706 position: gpui::Point<Pixels>,
4707 cx: &mut WindowContext<'_>,
4708) {
4709 let context_menu = ContextMenu::build(cx, move |menu, _| {
4710 let sha = format!("{}", blame_entry.sha);
4711 menu.on_blur_subscription(Subscription::new(|| {}))
4712 .entry("Copy commit SHA", None, move |cx| {
4713 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
4714 })
4715 .when_some(
4716 details.and_then(|details| details.permalink.clone()),
4717 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
4718 )
4719 });
4720
4721 editor.update(cx, move |editor, cx| {
4722 editor.mouse_context_menu = Some(MouseContextMenu::new(
4723 MenuPosition::PinnedToScreen(position),
4724 context_menu,
4725 cx,
4726 ));
4727 cx.notify();
4728 });
4729}
4730
4731#[derive(Debug)]
4732pub(crate) struct LineWithInvisibles {
4733 fragments: SmallVec<[LineFragment; 1]>,
4734 invisibles: Vec<Invisible>,
4735 len: usize,
4736 width: Pixels,
4737 font_size: Pixels,
4738}
4739
4740#[allow(clippy::large_enum_variant)]
4741enum LineFragment {
4742 Text(ShapedLine),
4743 Element {
4744 element: Option<AnyElement>,
4745 size: Size<Pixels>,
4746 len: usize,
4747 },
4748}
4749
4750impl fmt::Debug for LineFragment {
4751 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
4752 match self {
4753 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
4754 LineFragment::Element { size, len, .. } => f
4755 .debug_struct("Element")
4756 .field("size", size)
4757 .field("len", len)
4758 .finish(),
4759 }
4760 }
4761}
4762
4763impl LineWithInvisibles {
4764 #[allow(clippy::too_many_arguments)]
4765 fn from_chunks<'a>(
4766 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
4767 editor_style: &EditorStyle,
4768 max_line_len: usize,
4769 max_line_count: usize,
4770 editor_mode: EditorMode,
4771 text_width: Pixels,
4772 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
4773 cx: &mut WindowContext,
4774 ) -> Vec<Self> {
4775 let text_style = &editor_style.text;
4776 let mut layouts = Vec::with_capacity(max_line_count);
4777 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
4778 let mut line = String::new();
4779 let mut invisibles = Vec::new();
4780 let mut width = Pixels::ZERO;
4781 let mut len = 0;
4782 let mut styles = Vec::new();
4783 let mut non_whitespace_added = false;
4784 let mut row = 0;
4785 let mut line_exceeded_max_len = false;
4786 let font_size = text_style.font_size.to_pixels(cx.rem_size());
4787
4788 let ellipsis = SharedString::from("⋯");
4789
4790 for highlighted_chunk in chunks.chain([HighlightedChunk {
4791 text: "\n",
4792 style: None,
4793 is_tab: false,
4794 replacement: None,
4795 }]) {
4796 if let Some(replacement) = highlighted_chunk.replacement {
4797 if !line.is_empty() {
4798 let shaped_line = cx
4799 .text_system()
4800 .shape_line(line.clone().into(), font_size, &styles)
4801 .unwrap();
4802 width += shaped_line.width;
4803 len += shaped_line.len;
4804 fragments.push(LineFragment::Text(shaped_line));
4805 line.clear();
4806 styles.clear();
4807 }
4808
4809 match replacement {
4810 ChunkReplacement::Renderer(renderer) => {
4811 let available_width = if renderer.constrain_width {
4812 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
4813 ellipsis.clone()
4814 } else {
4815 SharedString::from(Arc::from(highlighted_chunk.text))
4816 };
4817 let shaped_line = cx
4818 .text_system()
4819 .shape_line(
4820 chunk,
4821 font_size,
4822 &[text_style.to_run(highlighted_chunk.text.len())],
4823 )
4824 .unwrap();
4825 AvailableSpace::Definite(shaped_line.width)
4826 } else {
4827 AvailableSpace::MinContent
4828 };
4829
4830 let mut element = (renderer.render)(&mut ChunkRendererContext {
4831 context: cx,
4832 max_width: text_width,
4833 });
4834 let line_height = text_style.line_height_in_pixels(cx.rem_size());
4835 let size = element.layout_as_root(
4836 size(available_width, AvailableSpace::Definite(line_height)),
4837 cx,
4838 );
4839
4840 width += size.width;
4841 len += highlighted_chunk.text.len();
4842 fragments.push(LineFragment::Element {
4843 element: Some(element),
4844 size,
4845 len: highlighted_chunk.text.len(),
4846 });
4847 }
4848 ChunkReplacement::Str(x) => {
4849 let text_style = if let Some(style) = highlighted_chunk.style {
4850 Cow::Owned(text_style.clone().highlight(style))
4851 } else {
4852 Cow::Borrowed(text_style)
4853 };
4854
4855 let run = TextRun {
4856 len: x.len(),
4857 font: text_style.font(),
4858 color: text_style.color,
4859 background_color: text_style.background_color,
4860 underline: text_style.underline,
4861 strikethrough: text_style.strikethrough,
4862 };
4863 let line_layout = cx
4864 .text_system()
4865 .shape_line(x, font_size, &[run])
4866 .unwrap()
4867 .with_len(highlighted_chunk.text.len());
4868
4869 width += line_layout.width;
4870 len += highlighted_chunk.text.len();
4871 fragments.push(LineFragment::Text(line_layout))
4872 }
4873 }
4874 } else {
4875 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
4876 if ix > 0 {
4877 let shaped_line = cx
4878 .text_system()
4879 .shape_line(line.clone().into(), font_size, &styles)
4880 .unwrap();
4881 width += shaped_line.width;
4882 len += shaped_line.len;
4883 fragments.push(LineFragment::Text(shaped_line));
4884 layouts.push(Self {
4885 width: mem::take(&mut width),
4886 len: mem::take(&mut len),
4887 fragments: mem::take(&mut fragments),
4888 invisibles: std::mem::take(&mut invisibles),
4889 font_size,
4890 });
4891
4892 line.clear();
4893 styles.clear();
4894 row += 1;
4895 line_exceeded_max_len = false;
4896 non_whitespace_added = false;
4897 if row == max_line_count {
4898 return layouts;
4899 }
4900 }
4901
4902 if !line_chunk.is_empty() && !line_exceeded_max_len {
4903 let text_style = if let Some(style) = highlighted_chunk.style {
4904 Cow::Owned(text_style.clone().highlight(style))
4905 } else {
4906 Cow::Borrowed(text_style)
4907 };
4908
4909 if line.len() + line_chunk.len() > max_line_len {
4910 let mut chunk_len = max_line_len - line.len();
4911 while !line_chunk.is_char_boundary(chunk_len) {
4912 chunk_len -= 1;
4913 }
4914 line_chunk = &line_chunk[..chunk_len];
4915 line_exceeded_max_len = true;
4916 }
4917
4918 styles.push(TextRun {
4919 len: line_chunk.len(),
4920 font: text_style.font(),
4921 color: text_style.color,
4922 background_color: text_style.background_color,
4923 underline: text_style.underline,
4924 strikethrough: text_style.strikethrough,
4925 });
4926
4927 if editor_mode == EditorMode::Full {
4928 // Line wrap pads its contents with fake whitespaces,
4929 // avoid printing them
4930 let is_soft_wrapped = is_row_soft_wrapped(row);
4931 if highlighted_chunk.is_tab {
4932 if non_whitespace_added || !is_soft_wrapped {
4933 invisibles.push(Invisible::Tab {
4934 line_start_offset: line.len(),
4935 line_end_offset: line.len() + line_chunk.len(),
4936 });
4937 }
4938 } else {
4939 invisibles.extend(
4940 line_chunk
4941 .bytes()
4942 .enumerate()
4943 .filter(|(_, line_byte)| {
4944 let is_whitespace =
4945 (*line_byte as char).is_whitespace();
4946 non_whitespace_added |= !is_whitespace;
4947 is_whitespace
4948 && (non_whitespace_added || !is_soft_wrapped)
4949 })
4950 .map(|(whitespace_index, _)| Invisible::Whitespace {
4951 line_offset: line.len() + whitespace_index,
4952 }),
4953 )
4954 }
4955 }
4956
4957 line.push_str(line_chunk);
4958 }
4959 }
4960 }
4961 }
4962
4963 layouts
4964 }
4965
4966 fn prepaint(
4967 &mut self,
4968 line_height: Pixels,
4969 scroll_pixel_position: gpui::Point<Pixels>,
4970 row: DisplayRow,
4971 content_origin: gpui::Point<Pixels>,
4972 line_elements: &mut SmallVec<[AnyElement; 1]>,
4973 cx: &mut WindowContext,
4974 ) {
4975 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
4976 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
4977 for fragment in &mut self.fragments {
4978 match fragment {
4979 LineFragment::Text(line) => {
4980 fragment_origin.x += line.width;
4981 }
4982 LineFragment::Element { element, size, .. } => {
4983 let mut element = element
4984 .take()
4985 .expect("you can't prepaint LineWithInvisibles twice");
4986
4987 // Center the element vertically within the line.
4988 let mut element_origin = fragment_origin;
4989 element_origin.y += (line_height - size.height) / 2.;
4990 element.prepaint_at(element_origin, cx);
4991 line_elements.push(element);
4992
4993 fragment_origin.x += size.width;
4994 }
4995 }
4996 }
4997 }
4998
4999 fn draw(
5000 &self,
5001 layout: &EditorLayout,
5002 row: DisplayRow,
5003 content_origin: gpui::Point<Pixels>,
5004 whitespace_setting: ShowWhitespaceSetting,
5005 selection_ranges: &[Range<DisplayPoint>],
5006 cx: &mut WindowContext,
5007 ) {
5008 let line_height = layout.position_map.line_height;
5009 let line_y = line_height
5010 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
5011
5012 let mut fragment_origin =
5013 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
5014
5015 for fragment in &self.fragments {
5016 match fragment {
5017 LineFragment::Text(line) => {
5018 line.paint(fragment_origin, line_height, cx).log_err();
5019 fragment_origin.x += line.width;
5020 }
5021 LineFragment::Element { size, .. } => {
5022 fragment_origin.x += size.width;
5023 }
5024 }
5025 }
5026
5027 self.draw_invisibles(
5028 selection_ranges,
5029 layout,
5030 content_origin,
5031 line_y,
5032 row,
5033 line_height,
5034 whitespace_setting,
5035 cx,
5036 );
5037 }
5038
5039 #[allow(clippy::too_many_arguments)]
5040 fn draw_invisibles(
5041 &self,
5042 selection_ranges: &[Range<DisplayPoint>],
5043 layout: &EditorLayout,
5044 content_origin: gpui::Point<Pixels>,
5045 line_y: Pixels,
5046 row: DisplayRow,
5047 line_height: Pixels,
5048 whitespace_setting: ShowWhitespaceSetting,
5049 cx: &mut WindowContext,
5050 ) {
5051 let extract_whitespace_info = |invisible: &Invisible| {
5052 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
5053 Invisible::Tab {
5054 line_start_offset,
5055 line_end_offset,
5056 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
5057 Invisible::Whitespace { line_offset } => {
5058 (*line_offset, line_offset + 1, &layout.space_invisible)
5059 }
5060 };
5061
5062 let x_offset = self.x_for_index(token_offset);
5063 let invisible_offset =
5064 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
5065 let origin = content_origin
5066 + gpui::point(
5067 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
5068 line_y,
5069 );
5070
5071 (
5072 [token_offset, token_end_offset],
5073 Box::new(move |cx: &mut WindowContext| {
5074 invisible_symbol.paint(origin, line_height, cx).log_err();
5075 }),
5076 )
5077 };
5078
5079 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
5080 match whitespace_setting {
5081 ShowWhitespaceSetting::None => (),
5082 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
5083 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
5084 let invisible_point = DisplayPoint::new(row, start as u32);
5085 if !selection_ranges
5086 .iter()
5087 .any(|region| region.start <= invisible_point && invisible_point < region.end)
5088 {
5089 return;
5090 }
5091
5092 paint(cx);
5093 }),
5094
5095 // For a whitespace to be on a boundary, any of the following conditions need to be met:
5096 // - It is a tab
5097 // - It is adjacent to an edge (start or end)
5098 // - It is adjacent to a whitespace (left or right)
5099 ShowWhitespaceSetting::Boundary => {
5100 // 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
5101 // the above cases.
5102 // Note: We zip in the original `invisibles` to check for tab equality
5103 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut WindowContext)>)> = None;
5104 for (([start, end], paint), invisible) in
5105 invisible_iter.zip_eq(self.invisibles.iter())
5106 {
5107 let should_render = match (&last_seen, invisible) {
5108 (_, Invisible::Tab { .. }) => true,
5109 (Some((_, last_end, _)), _) => *last_end == start,
5110 _ => false,
5111 };
5112
5113 if should_render || start == 0 || end == self.len {
5114 paint(cx);
5115
5116 // Since we are scanning from the left, we will skip over the first available whitespace that is part
5117 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
5118 if let Some((should_render_last, last_end, paint_last)) = last_seen {
5119 // Note that we need to make sure that the last one is actually adjacent
5120 if !should_render_last && last_end == start {
5121 paint_last(cx);
5122 }
5123 }
5124 }
5125
5126 // Manually render anything within a selection
5127 let invisible_point = DisplayPoint::new(row, start as u32);
5128 if selection_ranges.iter().any(|region| {
5129 region.start <= invisible_point && invisible_point < region.end
5130 }) {
5131 paint(cx);
5132 }
5133
5134 last_seen = Some((should_render, end, paint));
5135 }
5136 }
5137 }
5138 }
5139
5140 pub fn x_for_index(&self, index: usize) -> Pixels {
5141 let mut fragment_start_x = Pixels::ZERO;
5142 let mut fragment_start_index = 0;
5143
5144 for fragment in &self.fragments {
5145 match fragment {
5146 LineFragment::Text(shaped_line) => {
5147 let fragment_end_index = fragment_start_index + shaped_line.len;
5148 if index < fragment_end_index {
5149 return fragment_start_x
5150 + shaped_line.x_for_index(index - fragment_start_index);
5151 }
5152 fragment_start_x += shaped_line.width;
5153 fragment_start_index = fragment_end_index;
5154 }
5155 LineFragment::Element { len, size, .. } => {
5156 let fragment_end_index = fragment_start_index + len;
5157 if index < fragment_end_index {
5158 return fragment_start_x;
5159 }
5160 fragment_start_x += size.width;
5161 fragment_start_index = fragment_end_index;
5162 }
5163 }
5164 }
5165
5166 fragment_start_x
5167 }
5168
5169 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
5170 let mut fragment_start_x = Pixels::ZERO;
5171 let mut fragment_start_index = 0;
5172
5173 for fragment in &self.fragments {
5174 match fragment {
5175 LineFragment::Text(shaped_line) => {
5176 let fragment_end_x = fragment_start_x + shaped_line.width;
5177 if x < fragment_end_x {
5178 return Some(
5179 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
5180 );
5181 }
5182 fragment_start_x = fragment_end_x;
5183 fragment_start_index += shaped_line.len;
5184 }
5185 LineFragment::Element { len, size, .. } => {
5186 let fragment_end_x = fragment_start_x + size.width;
5187 if x < fragment_end_x {
5188 return Some(fragment_start_index);
5189 }
5190 fragment_start_index += len;
5191 fragment_start_x = fragment_end_x;
5192 }
5193 }
5194 }
5195
5196 None
5197 }
5198
5199 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
5200 let mut fragment_start_index = 0;
5201
5202 for fragment in &self.fragments {
5203 match fragment {
5204 LineFragment::Text(shaped_line) => {
5205 let fragment_end_index = fragment_start_index + shaped_line.len;
5206 if index < fragment_end_index {
5207 return shaped_line.font_id_for_index(index - fragment_start_index);
5208 }
5209 fragment_start_index = fragment_end_index;
5210 }
5211 LineFragment::Element { len, .. } => {
5212 let fragment_end_index = fragment_start_index + len;
5213 if index < fragment_end_index {
5214 return None;
5215 }
5216 fragment_start_index = fragment_end_index;
5217 }
5218 }
5219 }
5220
5221 None
5222 }
5223}
5224
5225#[derive(Debug, Clone, Copy, PartialEq, Eq)]
5226enum Invisible {
5227 /// A tab character
5228 ///
5229 /// A tab character is internally represented by spaces (configured by the user's tab width)
5230 /// aligned to the nearest column, so it's necessary to store the start and end offset for
5231 /// adjacency checks.
5232 Tab {
5233 line_start_offset: usize,
5234 line_end_offset: usize,
5235 },
5236 Whitespace {
5237 line_offset: usize,
5238 },
5239}
5240
5241impl EditorElement {
5242 /// Returns the rem size to use when rendering the [`EditorElement`].
5243 ///
5244 /// This allows UI elements to scale based on the `buffer_font_size`.
5245 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
5246 match self.editor.read(cx).mode {
5247 EditorMode::Full => {
5248 let buffer_font_size = self.style.text.font_size;
5249 match buffer_font_size {
5250 AbsoluteLength::Pixels(pixels) => {
5251 let rem_size_scale = {
5252 // Our default UI font size is 14px on a 16px base scale.
5253 // This means the default UI font size is 0.875rems.
5254 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
5255
5256 // We then determine the delta between a single rem and the default font
5257 // size scale.
5258 let default_font_size_delta = 1. - default_font_size_scale;
5259
5260 // Finally, we add this delta to 1rem to get the scale factor that
5261 // should be used to scale up the UI.
5262 1. + default_font_size_delta
5263 };
5264
5265 Some(pixels * rem_size_scale)
5266 }
5267 AbsoluteLength::Rems(rems) => {
5268 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
5269 }
5270 }
5271 }
5272 // We currently use single-line and auto-height editors in UI contexts,
5273 // so we don't want to scale everything with the buffer font size, as it
5274 // ends up looking off.
5275 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
5276 }
5277 }
5278}
5279
5280impl Element for EditorElement {
5281 type RequestLayoutState = ();
5282 type PrepaintState = EditorLayout;
5283
5284 fn id(&self) -> Option<ElementId> {
5285 None
5286 }
5287
5288 fn request_layout(
5289 &mut self,
5290 _: Option<&GlobalElementId>,
5291 cx: &mut WindowContext,
5292 ) -> (gpui::LayoutId, ()) {
5293 let rem_size = self.rem_size(cx);
5294 cx.with_rem_size(rem_size, |cx| {
5295 self.editor.update(cx, |editor, cx| {
5296 editor.set_style(self.style.clone(), cx);
5297
5298 let layout_id = match editor.mode {
5299 EditorMode::SingleLine { auto_width } => {
5300 let rem_size = cx.rem_size();
5301
5302 let height = self.style.text.line_height_in_pixels(rem_size);
5303 if auto_width {
5304 let editor_handle = cx.view().clone();
5305 let style = self.style.clone();
5306 cx.request_measured_layout(Style::default(), move |_, _, cx| {
5307 let editor_snapshot =
5308 editor_handle.update(cx, |editor, cx| editor.snapshot(cx));
5309 let line = Self::layout_lines(
5310 DisplayRow(0)..DisplayRow(1),
5311 &editor_snapshot,
5312 &style,
5313 px(f32::MAX),
5314 |_| false, // Single lines never soft wrap
5315 cx,
5316 )
5317 .pop()
5318 .unwrap();
5319
5320 let font_id = cx.text_system().resolve_font(&style.text.font());
5321 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5322 let em_width = cx
5323 .text_system()
5324 .typographic_bounds(font_id, font_size, 'm')
5325 .unwrap()
5326 .size
5327 .width;
5328
5329 size(line.width + em_width, height)
5330 })
5331 } else {
5332 let mut style = Style::default();
5333 style.size.height = height.into();
5334 style.size.width = relative(1.).into();
5335 cx.request_layout(style, None)
5336 }
5337 }
5338 EditorMode::AutoHeight { max_lines } => {
5339 let editor_handle = cx.view().clone();
5340 let max_line_number_width =
5341 self.max_line_number_width(&editor.snapshot(cx), cx);
5342 cx.request_measured_layout(
5343 Style::default(),
5344 move |known_dimensions, available_space, cx| {
5345 editor_handle
5346 .update(cx, |editor, cx| {
5347 compute_auto_height_layout(
5348 editor,
5349 max_lines,
5350 max_line_number_width,
5351 known_dimensions,
5352 available_space.width,
5353 cx,
5354 )
5355 })
5356 .unwrap_or_default()
5357 },
5358 )
5359 }
5360 EditorMode::Full => {
5361 let mut style = Style::default();
5362 style.size.width = relative(1.).into();
5363 style.size.height = relative(1.).into();
5364 cx.request_layout(style, None)
5365 }
5366 };
5367
5368 (layout_id, ())
5369 })
5370 })
5371 }
5372
5373 fn prepaint(
5374 &mut self,
5375 _: Option<&GlobalElementId>,
5376 bounds: Bounds<Pixels>,
5377 _: &mut Self::RequestLayoutState,
5378 cx: &mut WindowContext,
5379 ) -> Self::PrepaintState {
5380 let text_style = TextStyleRefinement {
5381 font_size: Some(self.style.text.font_size),
5382 line_height: Some(self.style.text.line_height),
5383 ..Default::default()
5384 };
5385 let focus_handle = self.editor.focus_handle(cx);
5386 cx.set_view_id(self.editor.entity_id());
5387 cx.set_focus_handle(&focus_handle);
5388
5389 let rem_size = self.rem_size(cx);
5390 cx.with_rem_size(rem_size, |cx| {
5391 cx.with_text_style(Some(text_style), |cx| {
5392 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
5393 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
5394 let style = self.style.clone();
5395
5396 let font_id = cx.text_system().resolve_font(&style.text.font());
5397 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5398 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5399 let em_width = cx
5400 .text_system()
5401 .typographic_bounds(font_id, font_size, 'm')
5402 .unwrap()
5403 .size
5404 .width;
5405 let em_advance = cx
5406 .text_system()
5407 .advance(font_id, font_size, 'm')
5408 .unwrap()
5409 .width;
5410
5411 let gutter_dimensions = snapshot.gutter_dimensions(
5412 font_id,
5413 font_size,
5414 em_width,
5415 em_advance,
5416 self.max_line_number_width(&snapshot, cx),
5417 cx,
5418 );
5419 let text_width = bounds.size.width - gutter_dimensions.width;
5420
5421 let right_margin = if snapshot.mode == EditorMode::Full {
5422 EditorElement::SCROLLBAR_WIDTH
5423 } else {
5424 px(0.)
5425 };
5426 let overscroll = size(em_width + right_margin, px(0.));
5427
5428 let editor_width =
5429 text_width - gutter_dimensions.margin - overscroll.width - em_width;
5430
5431 snapshot = self.editor.update(cx, |editor, cx| {
5432 editor.last_bounds = Some(bounds);
5433 editor.gutter_dimensions = gutter_dimensions;
5434 editor.set_visible_line_count(bounds.size.height / line_height, cx);
5435
5436 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
5437 snapshot
5438 } else {
5439 let wrap_width = match editor.soft_wrap_mode(cx) {
5440 SoftWrap::GitDiff => None,
5441 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
5442 SoftWrap::EditorWidth => Some(editor_width),
5443 SoftWrap::Column(column) => Some(column as f32 * em_advance),
5444 SoftWrap::Bounded(column) => {
5445 Some(editor_width.min(column as f32 * em_advance))
5446 }
5447 };
5448
5449 if editor.set_wrap_width(wrap_width, cx) {
5450 editor.snapshot(cx)
5451 } else {
5452 snapshot
5453 }
5454 }
5455 });
5456
5457 let wrap_guides = self
5458 .editor
5459 .read(cx)
5460 .wrap_guides(cx)
5461 .iter()
5462 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
5463 .collect::<SmallVec<[_; 2]>>();
5464
5465 let hitbox = cx.insert_hitbox(bounds, false);
5466 let gutter_hitbox =
5467 cx.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
5468 let text_hitbox = cx.insert_hitbox(
5469 Bounds {
5470 origin: gutter_hitbox.upper_right(),
5471 size: size(text_width, bounds.size.height),
5472 },
5473 false,
5474 );
5475 // Offset the content_bounds from the text_bounds by the gutter margin (which
5476 // is roughly half a character wide) to make hit testing work more like how we want.
5477 let content_origin =
5478 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
5479
5480 let height_in_lines = bounds.size.height / line_height;
5481 let max_row = snapshot.max_point().row().as_f32();
5482 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
5483 (max_row - height_in_lines + 1.).max(0.)
5484 } else {
5485 let settings = EditorSettings::get_global(cx);
5486 match settings.scroll_beyond_last_line {
5487 ScrollBeyondLastLine::OnePage => max_row,
5488 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
5489 ScrollBeyondLastLine::VerticalScrollMargin => {
5490 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
5491 .max(0.)
5492 }
5493 }
5494 };
5495
5496 let mut autoscroll_request = None;
5497 let mut autoscroll_containing_element = false;
5498 let mut autoscroll_horizontally = false;
5499 self.editor.update(cx, |editor, cx| {
5500 autoscroll_request = editor.autoscroll_request();
5501 autoscroll_containing_element =
5502 autoscroll_request.is_some() || editor.has_pending_selection();
5503 autoscroll_horizontally =
5504 editor.autoscroll_vertically(bounds, line_height, max_scroll_top, cx);
5505 snapshot = editor.snapshot(cx);
5506 });
5507
5508 let mut scroll_position = snapshot.scroll_position();
5509 // The scroll position is a fractional point, the whole number of which represents
5510 // the top of the window in terms of display rows.
5511 let start_row = DisplayRow(scroll_position.y as u32);
5512 let max_row = snapshot.max_point().row();
5513 let end_row = cmp::min(
5514 (scroll_position.y + height_in_lines).ceil() as u32,
5515 max_row.next_row().0,
5516 );
5517 let end_row = DisplayRow(end_row);
5518
5519 let buffer_rows = snapshot
5520 .buffer_rows(start_row)
5521 .take((start_row..end_row).len())
5522 .collect::<Vec<_>>();
5523 let is_row_soft_wrapped =
5524 |row| buffer_rows.get(row).copied().flatten().is_none();
5525
5526 let start_anchor = if start_row == Default::default() {
5527 Anchor::min()
5528 } else {
5529 snapshot.buffer_snapshot.anchor_before(
5530 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
5531 )
5532 };
5533 let end_anchor = if end_row > max_row {
5534 Anchor::max()
5535 } else {
5536 snapshot.buffer_snapshot.anchor_before(
5537 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
5538 )
5539 };
5540
5541 let highlighted_rows = self
5542 .editor
5543 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
5544 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
5545 start_anchor..end_anchor,
5546 &snapshot.display_snapshot,
5547 cx.theme().colors(),
5548 );
5549 let highlighted_gutter_ranges =
5550 self.editor.read(cx).gutter_highlights_in_range(
5551 start_anchor..end_anchor,
5552 &snapshot.display_snapshot,
5553 cx,
5554 );
5555
5556 let redacted_ranges = self.editor.read(cx).redacted_ranges(
5557 start_anchor..end_anchor,
5558 &snapshot.display_snapshot,
5559 cx,
5560 );
5561
5562 let local_selections: Vec<Selection<Point>> =
5563 self.editor.update(cx, |editor, cx| {
5564 let mut selections = editor
5565 .selections
5566 .disjoint_in_range(start_anchor..end_anchor, cx);
5567 selections.extend(editor.selections.pending(cx));
5568 selections
5569 });
5570
5571 let (selections, active_rows, newest_selection_head) = self.layout_selections(
5572 start_anchor,
5573 end_anchor,
5574 &local_selections,
5575 &snapshot,
5576 start_row,
5577 end_row,
5578 cx,
5579 );
5580
5581 let line_numbers = self.layout_line_numbers(
5582 start_row..end_row,
5583 buffer_rows.iter().copied(),
5584 &active_rows,
5585 newest_selection_head,
5586 &snapshot,
5587 cx,
5588 );
5589
5590 let mut crease_toggles = cx.with_element_namespace("crease_toggles", |cx| {
5591 self.layout_crease_toggles(
5592 start_row..end_row,
5593 buffer_rows.iter().copied(),
5594 &active_rows,
5595 &snapshot,
5596 cx,
5597 )
5598 });
5599 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5600 self.layout_crease_trailers(buffer_rows.iter().copied(), &snapshot, cx)
5601 });
5602
5603 let display_hunks = self.layout_gutter_git_hunks(
5604 line_height,
5605 &gutter_hitbox,
5606 start_row..end_row,
5607 start_anchor..end_anchor,
5608 &snapshot,
5609 cx,
5610 );
5611
5612 let mut max_visible_line_width = Pixels::ZERO;
5613 let mut line_layouts = Self::layout_lines(
5614 start_row..end_row,
5615 &snapshot,
5616 &self.style,
5617 editor_width,
5618 is_row_soft_wrapped,
5619 cx,
5620 );
5621 for line_with_invisibles in &line_layouts {
5622 if line_with_invisibles.width > max_visible_line_width {
5623 max_visible_line_width = line_with_invisibles.width;
5624 }
5625 }
5626
5627 let longest_line_width = layout_line(
5628 snapshot.longest_row(),
5629 &snapshot,
5630 &style,
5631 editor_width,
5632 is_row_soft_wrapped,
5633 cx,
5634 )
5635 .width;
5636 let mut scroll_width =
5637 longest_line_width.max(max_visible_line_width) + overscroll.width;
5638
5639 let blocks = cx.with_element_namespace("blocks", |cx| {
5640 self.render_blocks(
5641 start_row..end_row,
5642 &snapshot,
5643 &hitbox,
5644 &text_hitbox,
5645 editor_width,
5646 &mut scroll_width,
5647 &gutter_dimensions,
5648 em_width,
5649 gutter_dimensions.full_width(),
5650 line_height,
5651 &line_layouts,
5652 &local_selections,
5653 is_row_soft_wrapped,
5654 cx,
5655 )
5656 });
5657 let mut blocks = match blocks {
5658 Ok(blocks) => blocks,
5659 Err(resized_blocks) => {
5660 self.editor.update(cx, |editor, cx| {
5661 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
5662 });
5663 return self.prepaint(None, bounds, &mut (), cx);
5664 }
5665 };
5666
5667 let start_buffer_row =
5668 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
5669 let end_buffer_row =
5670 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
5671
5672 let scroll_max = point(
5673 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5674 max_row.as_f32(),
5675 );
5676
5677 self.editor.update(cx, |editor, cx| {
5678 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5679
5680 let autoscrolled = if autoscroll_horizontally {
5681 editor.autoscroll_horizontally(
5682 start_row,
5683 text_hitbox.size.width,
5684 scroll_width,
5685 em_width,
5686 &line_layouts,
5687 cx,
5688 )
5689 } else {
5690 false
5691 };
5692
5693 if clamped || autoscrolled {
5694 snapshot = editor.snapshot(cx);
5695 scroll_position = snapshot.scroll_position();
5696 }
5697 });
5698
5699 let scroll_pixel_position = point(
5700 scroll_position.x * em_width,
5701 scroll_position.y * line_height,
5702 );
5703
5704 let indent_guides = self.layout_indent_guides(
5705 content_origin,
5706 text_hitbox.origin,
5707 start_buffer_row..end_buffer_row,
5708 scroll_pixel_position,
5709 line_height,
5710 &snapshot,
5711 cx,
5712 );
5713
5714 let crease_trailers = cx.with_element_namespace("crease_trailers", |cx| {
5715 self.prepaint_crease_trailers(
5716 crease_trailers,
5717 &line_layouts,
5718 line_height,
5719 content_origin,
5720 scroll_pixel_position,
5721 em_width,
5722 cx,
5723 )
5724 });
5725
5726 let mut inline_blame = None;
5727 if let Some(newest_selection_head) = newest_selection_head {
5728 let display_row = newest_selection_head.row();
5729 if (start_row..end_row).contains(&display_row) {
5730 let line_ix = display_row.minus(start_row) as usize;
5731 let line_layout = &line_layouts[line_ix];
5732 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
5733 inline_blame = self.layout_inline_blame(
5734 display_row,
5735 &snapshot.display_snapshot,
5736 line_layout,
5737 crease_trailer_layout,
5738 em_width,
5739 content_origin,
5740 scroll_pixel_position,
5741 line_height,
5742 cx,
5743 );
5744 }
5745 }
5746
5747 let blamed_display_rows = self.layout_blame_entries(
5748 buffer_rows.into_iter(),
5749 em_width,
5750 scroll_position,
5751 line_height,
5752 &gutter_hitbox,
5753 gutter_dimensions.git_blame_entries_width,
5754 cx,
5755 );
5756
5757 let scroll_max = point(
5758 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
5759 max_scroll_top,
5760 );
5761
5762 self.editor.update(cx, |editor, cx| {
5763 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
5764
5765 let autoscrolled = if autoscroll_horizontally {
5766 editor.autoscroll_horizontally(
5767 start_row,
5768 text_hitbox.size.width,
5769 scroll_width,
5770 em_width,
5771 &line_layouts,
5772 cx,
5773 )
5774 } else {
5775 false
5776 };
5777
5778 if clamped || autoscrolled {
5779 snapshot = editor.snapshot(cx);
5780 scroll_position = snapshot.scroll_position();
5781 }
5782 });
5783
5784 let line_elements = self.prepaint_lines(
5785 start_row,
5786 &mut line_layouts,
5787 line_height,
5788 scroll_pixel_position,
5789 content_origin,
5790 cx,
5791 );
5792
5793 let mut block_start_rows = HashSet::default();
5794 cx.with_element_namespace("blocks", |cx| {
5795 self.layout_blocks(
5796 &mut blocks,
5797 &mut block_start_rows,
5798 &hitbox,
5799 line_height,
5800 scroll_pixel_position,
5801 cx,
5802 );
5803 });
5804
5805 let cursors = self.collect_cursors(&snapshot, cx);
5806 let visible_row_range = start_row..end_row;
5807 let non_visible_cursors = cursors
5808 .iter()
5809 .any(move |c| !visible_row_range.contains(&c.0.row()));
5810
5811 let visible_cursors = self.layout_visible_cursors(
5812 &snapshot,
5813 &selections,
5814 &block_start_rows,
5815 start_row..end_row,
5816 &line_layouts,
5817 &text_hitbox,
5818 content_origin,
5819 scroll_position,
5820 scroll_pixel_position,
5821 line_height,
5822 em_width,
5823 autoscroll_containing_element,
5824 cx,
5825 );
5826
5827 let scrollbar_layout = self.layout_scrollbar(
5828 &snapshot,
5829 bounds,
5830 scroll_position,
5831 height_in_lines,
5832 non_visible_cursors,
5833 cx,
5834 );
5835
5836 let gutter_settings = EditorSettings::get_global(cx).gutter;
5837
5838 let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
5839 editor
5840 .diff_map
5841 .hunks(false)
5842 .filter(|hunk| hunk.status == DiffHunkStatus::Added)
5843 .map(|expanded_hunk| {
5844 let start_row = expanded_hunk
5845 .hunk_range
5846 .start
5847 .to_display_point(&snapshot)
5848 .row();
5849 (start_row, expanded_hunk.clone())
5850 })
5851 .collect::<HashMap<_, _>>()
5852 });
5853
5854 let rows_with_hunk_bounds = display_hunks
5855 .iter()
5856 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
5857 .fold(
5858 HashMap::default(),
5859 |mut rows_with_hunk_bounds, (hunk, bounds)| {
5860 match hunk {
5861 DisplayDiffHunk::Folded { display_row } => {
5862 rows_with_hunk_bounds.insert(*display_row, bounds);
5863 }
5864 DisplayDiffHunk::Unfolded {
5865 display_row_range, ..
5866 } => {
5867 for display_row in display_row_range.iter_rows() {
5868 rows_with_hunk_bounds.insert(display_row, bounds);
5869 }
5870 }
5871 }
5872 rows_with_hunk_bounds
5873 },
5874 );
5875 let mut _context_menu_visible = false;
5876 let mut code_actions_indicator = None;
5877 if let Some(newest_selection_head) = newest_selection_head {
5878 if (start_row..end_row).contains(&newest_selection_head.row()) {
5879 _context_menu_visible = self.layout_context_menu(
5880 line_height,
5881 &hitbox,
5882 &text_hitbox,
5883 content_origin,
5884 start_row,
5885 scroll_pixel_position,
5886 &line_layouts,
5887 newest_selection_head,
5888 gutter_dimensions.width - gutter_dimensions.left_padding,
5889 cx,
5890 );
5891
5892 let show_code_actions = snapshot
5893 .show_code_actions
5894 .unwrap_or(gutter_settings.code_actions);
5895 if show_code_actions {
5896 let newest_selection_point =
5897 newest_selection_head.to_point(&snapshot.display_snapshot);
5898 let newest_selection_display_row =
5899 newest_selection_point.to_display_point(&snapshot).row();
5900 if !expanded_add_hunks_by_rows
5901 .contains_key(&newest_selection_display_row)
5902 {
5903 if !snapshot
5904 .is_line_folded(MultiBufferRow(newest_selection_point.row))
5905 {
5906 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
5907 MultiBufferRow(newest_selection_point.row),
5908 );
5909 if let Some((buffer, range)) = buffer {
5910 let buffer_id = buffer.remote_id();
5911 let row = range.start.row;
5912 let has_test_indicator = self
5913 .editor
5914 .read(cx)
5915 .tasks
5916 .contains_key(&(buffer_id, row));
5917
5918 if !has_test_indicator {
5919 code_actions_indicator = self
5920 .layout_code_actions_indicator(
5921 line_height,
5922 newest_selection_head,
5923 scroll_pixel_position,
5924 &gutter_dimensions,
5925 &gutter_hitbox,
5926 &rows_with_hunk_bounds,
5927 cx,
5928 );
5929 }
5930 }
5931 }
5932 }
5933 }
5934 }
5935 }
5936
5937 let test_indicators = if gutter_settings.runnables {
5938 self.layout_run_indicators(
5939 line_height,
5940 start_row..end_row,
5941 scroll_pixel_position,
5942 &gutter_dimensions,
5943 &gutter_hitbox,
5944 &rows_with_hunk_bounds,
5945 &snapshot,
5946 cx,
5947 )
5948 } else {
5949 Vec::new()
5950 };
5951
5952 self.layout_signature_help(
5953 &hitbox,
5954 content_origin,
5955 scroll_pixel_position,
5956 newest_selection_head,
5957 start_row,
5958 &line_layouts,
5959 line_height,
5960 em_width,
5961 cx,
5962 );
5963
5964 if !cx.has_active_drag() {
5965 self.layout_hover_popovers(
5966 &snapshot,
5967 &hitbox,
5968 &text_hitbox,
5969 start_row..end_row,
5970 content_origin,
5971 scroll_pixel_position,
5972 &line_layouts,
5973 line_height,
5974 em_width,
5975 cx,
5976 );
5977 }
5978
5979 let inline_completion_popover = self.layout_inline_completion_popover(
5980 &text_hitbox.bounds,
5981 &snapshot,
5982 start_row..end_row,
5983 scroll_position.y,
5984 scroll_position.y + height_in_lines,
5985 &line_layouts,
5986 line_height,
5987 scroll_pixel_position,
5988 editor_width,
5989 &style,
5990 cx,
5991 );
5992
5993 let mouse_context_menu = self.layout_mouse_context_menu(
5994 &snapshot,
5995 start_row..end_row,
5996 content_origin,
5997 cx,
5998 );
5999
6000 cx.with_element_namespace("crease_toggles", |cx| {
6001 self.prepaint_crease_toggles(
6002 &mut crease_toggles,
6003 line_height,
6004 &gutter_dimensions,
6005 gutter_settings,
6006 scroll_pixel_position,
6007 &gutter_hitbox,
6008 cx,
6009 )
6010 });
6011
6012 let invisible_symbol_font_size = font_size / 2.;
6013 let tab_invisible = cx
6014 .text_system()
6015 .shape_line(
6016 "→".into(),
6017 invisible_symbol_font_size,
6018 &[TextRun {
6019 len: "→".len(),
6020 font: self.style.text.font(),
6021 color: cx.theme().colors().editor_invisible,
6022 background_color: None,
6023 underline: None,
6024 strikethrough: None,
6025 }],
6026 )
6027 .unwrap();
6028 let space_invisible = cx
6029 .text_system()
6030 .shape_line(
6031 "•".into(),
6032 invisible_symbol_font_size,
6033 &[TextRun {
6034 len: "•".len(),
6035 font: self.style.text.font(),
6036 color: cx.theme().colors().editor_invisible,
6037 background_color: None,
6038 underline: None,
6039 strikethrough: None,
6040 }],
6041 )
6042 .unwrap();
6043
6044 EditorLayout {
6045 mode: snapshot.mode,
6046 position_map: Rc::new(PositionMap {
6047 size: bounds.size,
6048 scroll_pixel_position,
6049 scroll_max,
6050 line_layouts,
6051 line_height,
6052 em_width,
6053 em_advance,
6054 snapshot,
6055 }),
6056 visible_display_row_range: start_row..end_row,
6057 wrap_guides,
6058 indent_guides,
6059 hitbox,
6060 text_hitbox,
6061 gutter_hitbox,
6062 gutter_dimensions,
6063 display_hunks,
6064 content_origin,
6065 scrollbar_layout,
6066 active_rows,
6067 highlighted_rows,
6068 highlighted_ranges,
6069 highlighted_gutter_ranges,
6070 redacted_ranges,
6071 line_elements,
6072 line_numbers,
6073 blamed_display_rows,
6074 inline_blame,
6075 blocks,
6076 cursors,
6077 visible_cursors,
6078 selections,
6079 inline_completion_popover,
6080 mouse_context_menu,
6081 test_indicators,
6082 code_actions_indicator,
6083 crease_toggles,
6084 crease_trailers,
6085 tab_invisible,
6086 space_invisible,
6087 }
6088 })
6089 })
6090 })
6091 }
6092
6093 fn paint(
6094 &mut self,
6095 _: Option<&GlobalElementId>,
6096 bounds: Bounds<gpui::Pixels>,
6097 _: &mut Self::RequestLayoutState,
6098 layout: &mut Self::PrepaintState,
6099 cx: &mut WindowContext,
6100 ) {
6101 let focus_handle = self.editor.focus_handle(cx);
6102 let key_context = self.editor.update(cx, |editor, cx| editor.key_context(cx));
6103 cx.set_key_context(key_context);
6104 cx.handle_input(
6105 &focus_handle,
6106 ElementInputHandler::new(bounds, self.editor.clone()),
6107 );
6108 self.register_actions(cx);
6109 self.register_key_listeners(cx, layout);
6110
6111 let text_style = TextStyleRefinement {
6112 font_size: Some(self.style.text.font_size),
6113 line_height: Some(self.style.text.line_height),
6114 ..Default::default()
6115 };
6116 let hovered_hunk = layout
6117 .display_hunks
6118 .iter()
6119 .find_map(|(hunk, hunk_hitbox)| match hunk {
6120 DisplayDiffHunk::Folded { .. } => None,
6121 DisplayDiffHunk::Unfolded {
6122 diff_base_byte_range,
6123 multi_buffer_range,
6124 status,
6125 ..
6126 } => {
6127 if hunk_hitbox
6128 .as_ref()
6129 .map(|hitbox| hitbox.is_hovered(cx))
6130 .unwrap_or(false)
6131 {
6132 Some(HoveredHunk {
6133 status: *status,
6134 multi_buffer_range: multi_buffer_range.clone(),
6135 diff_base_byte_range: diff_base_byte_range.clone(),
6136 })
6137 } else {
6138 None
6139 }
6140 }
6141 });
6142 let rem_size = self.rem_size(cx);
6143 cx.with_rem_size(rem_size, |cx| {
6144 cx.with_text_style(Some(text_style), |cx| {
6145 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
6146 self.paint_mouse_listeners(layout, hovered_hunk, cx);
6147 self.paint_background(layout, cx);
6148 self.paint_indent_guides(layout, cx);
6149
6150 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6151 self.paint_blamed_display_rows(layout, cx);
6152 self.paint_line_numbers(layout, cx);
6153 }
6154
6155 self.paint_text(layout, cx);
6156
6157 if layout.gutter_hitbox.size.width > Pixels::ZERO {
6158 self.paint_gutter_highlights(layout, cx);
6159 self.paint_gutter_indicators(layout, cx);
6160 }
6161
6162 if !layout.blocks.is_empty() {
6163 cx.with_element_namespace("blocks", |cx| {
6164 self.paint_blocks(layout, cx);
6165 });
6166 }
6167
6168 self.paint_scrollbar(layout, cx);
6169 self.paint_inline_completion_popover(layout, cx);
6170 self.paint_mouse_context_menu(layout, cx);
6171 });
6172 })
6173 })
6174 }
6175}
6176
6177pub(super) fn gutter_bounds(
6178 editor_bounds: Bounds<Pixels>,
6179 gutter_dimensions: GutterDimensions,
6180) -> Bounds<Pixels> {
6181 Bounds {
6182 origin: editor_bounds.origin,
6183 size: size(gutter_dimensions.width, editor_bounds.size.height),
6184 }
6185}
6186
6187impl IntoElement for EditorElement {
6188 type Element = Self;
6189
6190 fn into_element(self) -> Self::Element {
6191 self
6192 }
6193}
6194
6195pub struct EditorLayout {
6196 position_map: Rc<PositionMap>,
6197 hitbox: Hitbox,
6198 text_hitbox: Hitbox,
6199 gutter_hitbox: Hitbox,
6200 gutter_dimensions: GutterDimensions,
6201 content_origin: gpui::Point<Pixels>,
6202 scrollbar_layout: Option<ScrollbarLayout>,
6203 mode: EditorMode,
6204 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
6205 indent_guides: Option<Vec<IndentGuideLayout>>,
6206 visible_display_row_range: Range<DisplayRow>,
6207 active_rows: BTreeMap<DisplayRow, bool>,
6208 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
6209 line_elements: SmallVec<[AnyElement; 1]>,
6210 line_numbers: Vec<Option<ShapedLine>>,
6211 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
6212 blamed_display_rows: Option<Vec<AnyElement>>,
6213 inline_blame: Option<AnyElement>,
6214 blocks: Vec<BlockLayout>,
6215 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
6216 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
6217 redacted_ranges: Vec<Range<DisplayPoint>>,
6218 cursors: Vec<(DisplayPoint, Hsla)>,
6219 visible_cursors: Vec<CursorLayout>,
6220 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
6221 code_actions_indicator: Option<AnyElement>,
6222 test_indicators: Vec<AnyElement>,
6223 crease_toggles: Vec<Option<AnyElement>>,
6224 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
6225 inline_completion_popover: Option<AnyElement>,
6226 mouse_context_menu: Option<AnyElement>,
6227 tab_invisible: ShapedLine,
6228 space_invisible: ShapedLine,
6229}
6230
6231impl EditorLayout {
6232 fn line_end_overshoot(&self) -> Pixels {
6233 0.15 * self.position_map.line_height
6234 }
6235}
6236
6237struct ColoredRange<T> {
6238 start: T,
6239 end: T,
6240 color: Hsla,
6241}
6242
6243#[derive(Clone)]
6244struct ScrollbarLayout {
6245 hitbox: Hitbox,
6246 visible_row_range: Range<f32>,
6247 visible: bool,
6248 row_height: Pixels,
6249 thumb_height: Pixels,
6250}
6251
6252impl ScrollbarLayout {
6253 const BORDER_WIDTH: Pixels = px(1.0);
6254 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
6255 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
6256 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
6257
6258 fn thumb_bounds(&self) -> Bounds<Pixels> {
6259 let thumb_top = self.y_for_row(self.visible_row_range.start);
6260 let thumb_bottom = thumb_top + self.thumb_height;
6261 Bounds::from_corners(
6262 point(self.hitbox.left(), thumb_top),
6263 point(self.hitbox.right(), thumb_bottom),
6264 )
6265 }
6266
6267 fn y_for_row(&self, row: f32) -> Pixels {
6268 self.hitbox.top() + row * self.row_height
6269 }
6270
6271 fn marker_quads_for_ranges(
6272 &self,
6273 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
6274 column: Option<usize>,
6275 ) -> Vec<PaintQuad> {
6276 struct MinMax {
6277 min: Pixels,
6278 max: Pixels,
6279 }
6280 let (x_range, height_limit) = if let Some(column) = column {
6281 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
6282 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
6283 let end = start + column_width;
6284 (
6285 Range { start, end },
6286 MinMax {
6287 min: Self::MIN_MARKER_HEIGHT,
6288 max: px(f32::MAX),
6289 },
6290 )
6291 } else {
6292 (
6293 Range {
6294 start: Self::BORDER_WIDTH,
6295 end: self.hitbox.size.width,
6296 },
6297 MinMax {
6298 min: Self::LINE_MARKER_HEIGHT,
6299 max: Self::LINE_MARKER_HEIGHT,
6300 },
6301 )
6302 };
6303
6304 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
6305 let mut pixel_ranges = row_ranges
6306 .into_iter()
6307 .map(|range| {
6308 let start_y = row_to_y(range.start);
6309 let end_y = row_to_y(range.end)
6310 + self.row_height.max(height_limit.min).min(height_limit.max);
6311 ColoredRange {
6312 start: start_y,
6313 end: end_y,
6314 color: range.color,
6315 }
6316 })
6317 .peekable();
6318
6319 let mut quads = Vec::new();
6320 while let Some(mut pixel_range) = pixel_ranges.next() {
6321 while let Some(next_pixel_range) = pixel_ranges.peek() {
6322 if pixel_range.end >= next_pixel_range.start - px(1.0)
6323 && pixel_range.color == next_pixel_range.color
6324 {
6325 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
6326 pixel_ranges.next();
6327 } else {
6328 break;
6329 }
6330 }
6331
6332 let bounds = Bounds::from_corners(
6333 point(x_range.start, pixel_range.start),
6334 point(x_range.end, pixel_range.end),
6335 );
6336 quads.push(quad(
6337 bounds,
6338 Corners::default(),
6339 pixel_range.color,
6340 Edges::default(),
6341 Hsla::transparent_black(),
6342 ));
6343 }
6344
6345 quads
6346 }
6347}
6348
6349struct CreaseTrailerLayout {
6350 element: AnyElement,
6351 bounds: Bounds<Pixels>,
6352}
6353
6354struct PositionMap {
6355 size: Size<Pixels>,
6356 line_height: Pixels,
6357 scroll_pixel_position: gpui::Point<Pixels>,
6358 scroll_max: gpui::Point<f32>,
6359 em_width: Pixels,
6360 em_advance: Pixels,
6361 line_layouts: Vec<LineWithInvisibles>,
6362 snapshot: EditorSnapshot,
6363}
6364
6365#[derive(Debug, Copy, Clone)]
6366pub struct PointForPosition {
6367 pub previous_valid: DisplayPoint,
6368 pub next_valid: DisplayPoint,
6369 pub exact_unclipped: DisplayPoint,
6370 pub column_overshoot_after_line_end: u32,
6371}
6372
6373impl PointForPosition {
6374 pub fn as_valid(&self) -> Option<DisplayPoint> {
6375 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
6376 Some(self.previous_valid)
6377 } else {
6378 None
6379 }
6380 }
6381}
6382
6383impl PositionMap {
6384 fn point_for_position(
6385 &self,
6386 text_bounds: Bounds<Pixels>,
6387 position: gpui::Point<Pixels>,
6388 ) -> PointForPosition {
6389 let scroll_position = self.snapshot.scroll_position();
6390 let position = position - text_bounds.origin;
6391 let y = position.y.max(px(0.)).min(self.size.height);
6392 let x = position.x + (scroll_position.x * self.em_width);
6393 let row = ((y / self.line_height) + scroll_position.y) as u32;
6394
6395 let (column, x_overshoot_after_line_end) = if let Some(line) = self
6396 .line_layouts
6397 .get(row as usize - scroll_position.y as usize)
6398 {
6399 if let Some(ix) = line.index_for_x(x) {
6400 (ix as u32, px(0.))
6401 } else {
6402 (line.len as u32, px(0.).max(x - line.width))
6403 }
6404 } else {
6405 (0, x)
6406 };
6407
6408 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
6409 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
6410 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
6411
6412 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
6413 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
6414 PointForPosition {
6415 previous_valid,
6416 next_valid,
6417 exact_unclipped,
6418 column_overshoot_after_line_end,
6419 }
6420 }
6421}
6422
6423struct BlockLayout {
6424 id: BlockId,
6425 row: Option<DisplayRow>,
6426 element: AnyElement,
6427 available_space: Size<AvailableSpace>,
6428 style: BlockStyle,
6429}
6430
6431fn layout_line(
6432 row: DisplayRow,
6433 snapshot: &EditorSnapshot,
6434 style: &EditorStyle,
6435 text_width: Pixels,
6436 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6437 cx: &mut WindowContext,
6438) -> LineWithInvisibles {
6439 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
6440 LineWithInvisibles::from_chunks(
6441 chunks,
6442 &style,
6443 MAX_LINE_LEN,
6444 1,
6445 snapshot.mode,
6446 text_width,
6447 is_row_soft_wrapped,
6448 cx,
6449 )
6450 .pop()
6451 .unwrap()
6452}
6453
6454#[derive(Debug)]
6455pub struct IndentGuideLayout {
6456 origin: gpui::Point<Pixels>,
6457 length: Pixels,
6458 single_indent_width: Pixels,
6459 depth: u32,
6460 active: bool,
6461 settings: IndentGuideSettings,
6462}
6463
6464pub struct CursorLayout {
6465 origin: gpui::Point<Pixels>,
6466 block_width: Pixels,
6467 line_height: Pixels,
6468 color: Hsla,
6469 shape: CursorShape,
6470 block_text: Option<ShapedLine>,
6471 cursor_name: Option<AnyElement>,
6472}
6473
6474#[derive(Debug)]
6475pub struct CursorName {
6476 string: SharedString,
6477 color: Hsla,
6478 is_top_row: bool,
6479}
6480
6481impl CursorLayout {
6482 pub fn new(
6483 origin: gpui::Point<Pixels>,
6484 block_width: Pixels,
6485 line_height: Pixels,
6486 color: Hsla,
6487 shape: CursorShape,
6488 block_text: Option<ShapedLine>,
6489 ) -> CursorLayout {
6490 CursorLayout {
6491 origin,
6492 block_width,
6493 line_height,
6494 color,
6495 shape,
6496 block_text,
6497 cursor_name: None,
6498 }
6499 }
6500
6501 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6502 Bounds {
6503 origin: self.origin + origin,
6504 size: size(self.block_width, self.line_height),
6505 }
6506 }
6507
6508 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
6509 match self.shape {
6510 CursorShape::Bar => Bounds {
6511 origin: self.origin + origin,
6512 size: size(px(2.0), self.line_height),
6513 },
6514 CursorShape::Block | CursorShape::Hollow => Bounds {
6515 origin: self.origin + origin,
6516 size: size(self.block_width, self.line_height),
6517 },
6518 CursorShape::Underline => Bounds {
6519 origin: self.origin
6520 + origin
6521 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
6522 size: size(self.block_width, px(2.0)),
6523 },
6524 }
6525 }
6526
6527 pub fn layout(
6528 &mut self,
6529 origin: gpui::Point<Pixels>,
6530 cursor_name: Option<CursorName>,
6531 cx: &mut WindowContext,
6532 ) {
6533 if let Some(cursor_name) = cursor_name {
6534 let bounds = self.bounds(origin);
6535 let text_size = self.line_height / 1.5;
6536
6537 let name_origin = if cursor_name.is_top_row {
6538 point(bounds.right() - px(1.), bounds.top())
6539 } else {
6540 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
6541 };
6542 let mut name_element = div()
6543 .bg(self.color)
6544 .text_size(text_size)
6545 .px_0p5()
6546 .line_height(text_size + px(2.))
6547 .text_color(cursor_name.color)
6548 .child(cursor_name.string.clone())
6549 .into_any_element();
6550
6551 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), cx);
6552
6553 self.cursor_name = Some(name_element);
6554 }
6555 }
6556
6557 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
6558 let bounds = self.bounds(origin);
6559
6560 //Draw background or border quad
6561 let cursor = if matches!(self.shape, CursorShape::Hollow) {
6562 outline(bounds, self.color)
6563 } else {
6564 fill(bounds, self.color)
6565 };
6566
6567 if let Some(name) = &mut self.cursor_name {
6568 name.paint(cx);
6569 }
6570
6571 cx.paint_quad(cursor);
6572
6573 if let Some(block_text) = &self.block_text {
6574 block_text
6575 .paint(self.origin + origin, self.line_height, cx)
6576 .log_err();
6577 }
6578 }
6579
6580 pub fn shape(&self) -> CursorShape {
6581 self.shape
6582 }
6583}
6584
6585#[derive(Debug)]
6586pub struct HighlightedRange {
6587 pub start_y: Pixels,
6588 pub line_height: Pixels,
6589 pub lines: Vec<HighlightedRangeLine>,
6590 pub color: Hsla,
6591 pub corner_radius: Pixels,
6592}
6593
6594#[derive(Debug)]
6595pub struct HighlightedRangeLine {
6596 pub start_x: Pixels,
6597 pub end_x: Pixels,
6598}
6599
6600impl HighlightedRange {
6601 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
6602 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
6603 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
6604 self.paint_lines(
6605 self.start_y + self.line_height,
6606 &self.lines[1..],
6607 bounds,
6608 cx,
6609 );
6610 } else {
6611 self.paint_lines(self.start_y, &self.lines, bounds, cx);
6612 }
6613 }
6614
6615 fn paint_lines(
6616 &self,
6617 start_y: Pixels,
6618 lines: &[HighlightedRangeLine],
6619 _bounds: Bounds<Pixels>,
6620 cx: &mut WindowContext,
6621 ) {
6622 if lines.is_empty() {
6623 return;
6624 }
6625
6626 let first_line = lines.first().unwrap();
6627 let last_line = lines.last().unwrap();
6628
6629 let first_top_left = point(first_line.start_x, start_y);
6630 let first_top_right = point(first_line.end_x, start_y);
6631
6632 let curve_height = point(Pixels::ZERO, self.corner_radius);
6633 let curve_width = |start_x: Pixels, end_x: Pixels| {
6634 let max = (end_x - start_x) / 2.;
6635 let width = if max < self.corner_radius {
6636 max
6637 } else {
6638 self.corner_radius
6639 };
6640
6641 point(width, Pixels::ZERO)
6642 };
6643
6644 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
6645 let mut path = gpui::Path::new(first_top_right - top_curve_width);
6646 path.curve_to(first_top_right + curve_height, first_top_right);
6647
6648 let mut iter = lines.iter().enumerate().peekable();
6649 while let Some((ix, line)) = iter.next() {
6650 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
6651
6652 if let Some((_, next_line)) = iter.peek() {
6653 let next_top_right = point(next_line.end_x, bottom_right.y);
6654
6655 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
6656 Ordering::Equal => {
6657 path.line_to(bottom_right);
6658 }
6659 Ordering::Less => {
6660 let curve_width = curve_width(next_top_right.x, bottom_right.x);
6661 path.line_to(bottom_right - curve_height);
6662 if self.corner_radius > Pixels::ZERO {
6663 path.curve_to(bottom_right - curve_width, bottom_right);
6664 }
6665 path.line_to(next_top_right + curve_width);
6666 if self.corner_radius > Pixels::ZERO {
6667 path.curve_to(next_top_right + curve_height, next_top_right);
6668 }
6669 }
6670 Ordering::Greater => {
6671 let curve_width = curve_width(bottom_right.x, next_top_right.x);
6672 path.line_to(bottom_right - curve_height);
6673 if self.corner_radius > Pixels::ZERO {
6674 path.curve_to(bottom_right + curve_width, bottom_right);
6675 }
6676 path.line_to(next_top_right - curve_width);
6677 if self.corner_radius > Pixels::ZERO {
6678 path.curve_to(next_top_right + curve_height, next_top_right);
6679 }
6680 }
6681 }
6682 } else {
6683 let curve_width = curve_width(line.start_x, line.end_x);
6684 path.line_to(bottom_right - curve_height);
6685 if self.corner_radius > Pixels::ZERO {
6686 path.curve_to(bottom_right - curve_width, bottom_right);
6687 }
6688
6689 let bottom_left = point(line.start_x, bottom_right.y);
6690 path.line_to(bottom_left + curve_width);
6691 if self.corner_radius > Pixels::ZERO {
6692 path.curve_to(bottom_left - curve_height, bottom_left);
6693 }
6694 }
6695 }
6696
6697 if first_line.start_x > last_line.start_x {
6698 let curve_width = curve_width(last_line.start_x, first_line.start_x);
6699 let second_top_left = point(last_line.start_x, start_y + self.line_height);
6700 path.line_to(second_top_left + curve_height);
6701 if self.corner_radius > Pixels::ZERO {
6702 path.curve_to(second_top_left + curve_width, second_top_left);
6703 }
6704 let first_bottom_left = point(first_line.start_x, second_top_left.y);
6705 path.line_to(first_bottom_left - curve_width);
6706 if self.corner_radius > Pixels::ZERO {
6707 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
6708 }
6709 }
6710
6711 path.line_to(first_top_left + curve_height);
6712 if self.corner_radius > Pixels::ZERO {
6713 path.curve_to(first_top_left + top_curve_width, first_top_left);
6714 }
6715 path.line_to(first_top_right - top_curve_width);
6716
6717 cx.paint_path(path, self.color);
6718 }
6719}
6720
6721pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6722 (delta.pow(1.5) / 100.0).into()
6723}
6724
6725fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
6726 (delta.pow(1.2) / 300.0).into()
6727}
6728
6729pub fn register_action<T: Action>(
6730 view: &View<Editor>,
6731 cx: &mut WindowContext,
6732 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
6733) {
6734 let view = view.clone();
6735 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
6736 let action = action.downcast_ref().unwrap();
6737 if phase == DispatchPhase::Bubble {
6738 view.update(cx, |editor, cx| {
6739 listener(editor, action, cx);
6740 })
6741 }
6742 })
6743}
6744
6745fn compute_auto_height_layout(
6746 editor: &mut Editor,
6747 max_lines: usize,
6748 max_line_number_width: Pixels,
6749 known_dimensions: Size<Option<Pixels>>,
6750 available_width: AvailableSpace,
6751 cx: &mut ViewContext<Editor>,
6752) -> Option<Size<Pixels>> {
6753 let width = known_dimensions.width.or({
6754 if let AvailableSpace::Definite(available_width) = available_width {
6755 Some(available_width)
6756 } else {
6757 None
6758 }
6759 })?;
6760 if let Some(height) = known_dimensions.height {
6761 return Some(size(width, height));
6762 }
6763
6764 let style = editor.style.as_ref().unwrap();
6765 let font_id = cx.text_system().resolve_font(&style.text.font());
6766 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6767 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6768 let em_width = cx
6769 .text_system()
6770 .typographic_bounds(font_id, font_size, 'm')
6771 .unwrap()
6772 .size
6773 .width;
6774 let em_advance = cx
6775 .text_system()
6776 .advance(font_id, font_size, 'm')
6777 .unwrap()
6778 .width;
6779
6780 let mut snapshot = editor.snapshot(cx);
6781 let gutter_dimensions = snapshot.gutter_dimensions(
6782 font_id,
6783 font_size,
6784 em_width,
6785 em_advance,
6786 max_line_number_width,
6787 cx,
6788 );
6789
6790 editor.gutter_dimensions = gutter_dimensions;
6791 let text_width = width - gutter_dimensions.width;
6792 let overscroll = size(em_width, px(0.));
6793
6794 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
6795 if editor.set_wrap_width(Some(editor_width), cx) {
6796 snapshot = editor.snapshot(cx);
6797 }
6798
6799 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
6800 let height = scroll_height
6801 .max(line_height)
6802 .min(line_height * max_lines as f32);
6803
6804 Some(size(width, height))
6805}
6806
6807#[cfg(test)]
6808mod tests {
6809 use super::*;
6810 use crate::{
6811 display_map::{BlockPlacement, BlockProperties},
6812 editor_tests::{init_test, update_test_language_settings},
6813 Editor, MultiBuffer,
6814 };
6815 use gpui::{TestAppContext, VisualTestContext};
6816 use language::language_settings;
6817 use log::info;
6818 use std::num::NonZeroU32;
6819 use util::test::sample_text;
6820
6821 #[gpui::test]
6822 fn test_shape_line_numbers(cx: &mut TestAppContext) {
6823 init_test(cx, |_| {});
6824 let window = cx.add_window(|cx| {
6825 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
6826 Editor::new(EditorMode::Full, buffer, None, true, cx)
6827 });
6828
6829 let editor = window.root(cx).unwrap();
6830 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6831 let element = EditorElement::new(&editor, style);
6832 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
6833
6834 let layouts = cx
6835 .update_window(*window, |_, cx| {
6836 element.layout_line_numbers(
6837 DisplayRow(0)..DisplayRow(6),
6838 (0..6).map(MultiBufferRow).map(Some),
6839 &Default::default(),
6840 Some(DisplayPoint::new(DisplayRow(0), 0)),
6841 &snapshot,
6842 cx,
6843 )
6844 })
6845 .unwrap();
6846 assert_eq!(layouts.len(), 6);
6847
6848 let relative_rows = window
6849 .update(cx, |editor, cx| {
6850 let snapshot = editor.snapshot(cx);
6851 element.calculate_relative_line_numbers(
6852 &snapshot,
6853 &(DisplayRow(0)..DisplayRow(6)),
6854 Some(DisplayRow(3)),
6855 )
6856 })
6857 .unwrap();
6858 assert_eq!(relative_rows[&DisplayRow(0)], 3);
6859 assert_eq!(relative_rows[&DisplayRow(1)], 2);
6860 assert_eq!(relative_rows[&DisplayRow(2)], 1);
6861 // current line has no relative number
6862 assert_eq!(relative_rows[&DisplayRow(4)], 1);
6863 assert_eq!(relative_rows[&DisplayRow(5)], 2);
6864
6865 // works if cursor is before screen
6866 let relative_rows = window
6867 .update(cx, |editor, cx| {
6868 let snapshot = editor.snapshot(cx);
6869 element.calculate_relative_line_numbers(
6870 &snapshot,
6871 &(DisplayRow(3)..DisplayRow(6)),
6872 Some(DisplayRow(1)),
6873 )
6874 })
6875 .unwrap();
6876 assert_eq!(relative_rows.len(), 3);
6877 assert_eq!(relative_rows[&DisplayRow(3)], 2);
6878 assert_eq!(relative_rows[&DisplayRow(4)], 3);
6879 assert_eq!(relative_rows[&DisplayRow(5)], 4);
6880
6881 // works if cursor is after screen
6882 let relative_rows = window
6883 .update(cx, |editor, cx| {
6884 let snapshot = editor.snapshot(cx);
6885 element.calculate_relative_line_numbers(
6886 &snapshot,
6887 &(DisplayRow(0)..DisplayRow(3)),
6888 Some(DisplayRow(6)),
6889 )
6890 })
6891 .unwrap();
6892 assert_eq!(relative_rows.len(), 3);
6893 assert_eq!(relative_rows[&DisplayRow(0)], 5);
6894 assert_eq!(relative_rows[&DisplayRow(1)], 4);
6895 assert_eq!(relative_rows[&DisplayRow(2)], 3);
6896 }
6897
6898 #[gpui::test]
6899 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
6900 init_test(cx, |_| {});
6901
6902 let window = cx.add_window(|cx| {
6903 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
6904 Editor::new(EditorMode::Full, buffer, None, true, cx)
6905 });
6906 let cx = &mut VisualTestContext::from_window(*window, cx);
6907 let editor = window.root(cx).unwrap();
6908 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6909
6910 window
6911 .update(cx, |editor, cx| {
6912 editor.cursor_shape = CursorShape::Block;
6913 editor.change_selections(None, cx, |s| {
6914 s.select_ranges([
6915 Point::new(0, 0)..Point::new(1, 0),
6916 Point::new(3, 2)..Point::new(3, 3),
6917 Point::new(5, 6)..Point::new(6, 0),
6918 ]);
6919 });
6920 })
6921 .unwrap();
6922
6923 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6924 EditorElement::new(&editor, style)
6925 });
6926
6927 assert_eq!(state.selections.len(), 1);
6928 let local_selections = &state.selections[0].1;
6929 assert_eq!(local_selections.len(), 3);
6930 // moves cursor back one line
6931 assert_eq!(
6932 local_selections[0].head,
6933 DisplayPoint::new(DisplayRow(0), 6)
6934 );
6935 assert_eq!(
6936 local_selections[0].range,
6937 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
6938 );
6939
6940 // moves cursor back one column
6941 assert_eq!(
6942 local_selections[1].range,
6943 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
6944 );
6945 assert_eq!(
6946 local_selections[1].head,
6947 DisplayPoint::new(DisplayRow(3), 2)
6948 );
6949
6950 // leaves cursor on the max point
6951 assert_eq!(
6952 local_selections[2].range,
6953 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
6954 );
6955 assert_eq!(
6956 local_selections[2].head,
6957 DisplayPoint::new(DisplayRow(6), 0)
6958 );
6959
6960 // active lines does not include 1 (even though the range of the selection does)
6961 assert_eq!(
6962 state.active_rows.keys().cloned().collect::<Vec<_>>(),
6963 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
6964 );
6965
6966 // multi-buffer support
6967 // in DisplayPoint coordinates, this is what we're dealing with:
6968 // 0: [[file
6969 // 1: header
6970 // 2: section]]
6971 // 3: aaaaaa
6972 // 4: bbbbbb
6973 // 5: cccccc
6974 // 6:
6975 // 7: [[footer]]
6976 // 8: [[header]]
6977 // 9: ffffff
6978 // 10: gggggg
6979 // 11: hhhhhh
6980 // 12:
6981 // 13: [[footer]]
6982 // 14: [[file
6983 // 15: header
6984 // 16: section]]
6985 // 17: bbbbbb
6986 // 18: cccccc
6987 // 19: dddddd
6988 // 20: [[footer]]
6989 let window = cx.add_window(|cx| {
6990 let buffer = MultiBuffer::build_multi(
6991 [
6992 (
6993 &(sample_text(8, 6, 'a') + "\n"),
6994 vec![
6995 Point::new(0, 0)..Point::new(3, 0),
6996 Point::new(4, 0)..Point::new(7, 0),
6997 ],
6998 ),
6999 (
7000 &(sample_text(8, 6, 'a') + "\n"),
7001 vec![Point::new(1, 0)..Point::new(3, 0)],
7002 ),
7003 ],
7004 cx,
7005 );
7006 Editor::new(EditorMode::Full, buffer, None, true, cx)
7007 });
7008 let editor = window.root(cx).unwrap();
7009 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7010 let _state = window.update(cx, |editor, cx| {
7011 editor.cursor_shape = CursorShape::Block;
7012 editor.change_selections(None, cx, |s| {
7013 s.select_display_ranges([
7014 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
7015 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
7016 ]);
7017 });
7018 });
7019
7020 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7021 EditorElement::new(&editor, style)
7022 });
7023 assert_eq!(state.selections.len(), 1);
7024 let local_selections = &state.selections[0].1;
7025 assert_eq!(local_selections.len(), 2);
7026
7027 // moves cursor on excerpt boundary back a line
7028 // and doesn't allow selection to bleed through
7029 assert_eq!(
7030 local_selections[0].range,
7031 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
7032 );
7033 assert_eq!(
7034 local_selections[0].head,
7035 DisplayPoint::new(DisplayRow(6), 0)
7036 );
7037 // moves cursor on buffer boundary back two lines
7038 // and doesn't allow selection to bleed through
7039 assert_eq!(
7040 local_selections[1].range,
7041 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
7042 );
7043 assert_eq!(
7044 local_selections[1].head,
7045 DisplayPoint::new(DisplayRow(12), 0)
7046 );
7047 }
7048
7049 #[gpui::test]
7050 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
7051 init_test(cx, |_| {});
7052
7053 let window = cx.add_window(|cx| {
7054 let buffer = MultiBuffer::build_simple("", cx);
7055 Editor::new(EditorMode::Full, buffer, None, true, cx)
7056 });
7057 let cx = &mut VisualTestContext::from_window(*window, cx);
7058 let editor = window.root(cx).unwrap();
7059 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7060 window
7061 .update(cx, |editor, cx| {
7062 editor.set_placeholder_text("hello", cx);
7063 editor.insert_blocks(
7064 [BlockProperties {
7065 style: BlockStyle::Fixed,
7066 placement: BlockPlacement::Above(Anchor::min()),
7067 height: 3,
7068 render: Arc::new(|cx| div().h(3. * cx.line_height()).into_any()),
7069 priority: 0,
7070 }],
7071 None,
7072 cx,
7073 );
7074
7075 // Blur the editor so that it displays placeholder text.
7076 cx.blur();
7077 })
7078 .unwrap();
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.position_map.line_layouts.len(), 4);
7084 assert_eq!(
7085 state
7086 .line_numbers
7087 .iter()
7088 .map(Option::is_some)
7089 .collect::<Vec<_>>(),
7090 &[false, false, false, true]
7091 );
7092 }
7093
7094 #[gpui::test]
7095 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
7096 const TAB_SIZE: u32 = 4;
7097
7098 let input_text = "\t \t|\t| a b";
7099 let expected_invisibles = vec![
7100 Invisible::Tab {
7101 line_start_offset: 0,
7102 line_end_offset: TAB_SIZE as usize,
7103 },
7104 Invisible::Whitespace {
7105 line_offset: TAB_SIZE as usize,
7106 },
7107 Invisible::Tab {
7108 line_start_offset: TAB_SIZE as usize + 1,
7109 line_end_offset: TAB_SIZE as usize * 2,
7110 },
7111 Invisible::Tab {
7112 line_start_offset: TAB_SIZE as usize * 2 + 1,
7113 line_end_offset: TAB_SIZE as usize * 3,
7114 },
7115 Invisible::Whitespace {
7116 line_offset: TAB_SIZE as usize * 3 + 1,
7117 },
7118 Invisible::Whitespace {
7119 line_offset: TAB_SIZE as usize * 3 + 3,
7120 },
7121 ];
7122 assert_eq!(
7123 expected_invisibles.len(),
7124 input_text
7125 .chars()
7126 .filter(|initial_char| initial_char.is_whitespace())
7127 .count(),
7128 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
7129 );
7130
7131 for show_line_numbers in [true, false] {
7132 init_test(cx, |s| {
7133 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7134 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
7135 });
7136
7137 let actual_invisibles = collect_invisibles_from_new_editor(
7138 cx,
7139 EditorMode::Full,
7140 input_text,
7141 px(500.0),
7142 show_line_numbers,
7143 );
7144
7145 assert_eq!(expected_invisibles, actual_invisibles);
7146 }
7147 }
7148
7149 #[gpui::test]
7150 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
7151 init_test(cx, |s| {
7152 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7153 s.defaults.tab_size = NonZeroU32::new(4);
7154 });
7155
7156 for editor_mode_without_invisibles in [
7157 EditorMode::SingleLine { auto_width: false },
7158 EditorMode::AutoHeight { max_lines: 100 },
7159 ] {
7160 for show_line_numbers in [true, false] {
7161 let invisibles = collect_invisibles_from_new_editor(
7162 cx,
7163 editor_mode_without_invisibles,
7164 "\t\t\t| | a b",
7165 px(500.0),
7166 show_line_numbers,
7167 );
7168 assert!(invisibles.is_empty(),
7169 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
7170 }
7171 }
7172 }
7173
7174 #[gpui::test]
7175 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
7176 let tab_size = 4;
7177 let input_text = "a\tbcd ".repeat(9);
7178 let repeated_invisibles = [
7179 Invisible::Tab {
7180 line_start_offset: 1,
7181 line_end_offset: tab_size as usize,
7182 },
7183 Invisible::Whitespace {
7184 line_offset: tab_size as usize + 3,
7185 },
7186 Invisible::Whitespace {
7187 line_offset: tab_size as usize + 4,
7188 },
7189 Invisible::Whitespace {
7190 line_offset: tab_size as usize + 5,
7191 },
7192 Invisible::Whitespace {
7193 line_offset: tab_size as usize + 6,
7194 },
7195 Invisible::Whitespace {
7196 line_offset: tab_size as usize + 7,
7197 },
7198 ];
7199 let expected_invisibles = std::iter::once(repeated_invisibles)
7200 .cycle()
7201 .take(9)
7202 .flatten()
7203 .collect::<Vec<_>>();
7204 assert_eq!(
7205 expected_invisibles.len(),
7206 input_text
7207 .chars()
7208 .filter(|initial_char| initial_char.is_whitespace())
7209 .count(),
7210 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
7211 );
7212 info!("Expected invisibles: {expected_invisibles:?}");
7213
7214 init_test(cx, |_| {});
7215
7216 // Put the same string with repeating whitespace pattern into editors of various size,
7217 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
7218 let resize_step = 10.0;
7219 let mut editor_width = 200.0;
7220 while editor_width <= 1000.0 {
7221 for show_line_numbers in [true, false] {
7222 update_test_language_settings(cx, |s| {
7223 s.defaults.tab_size = NonZeroU32::new(tab_size);
7224 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
7225 s.defaults.preferred_line_length = Some(editor_width as u32);
7226 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
7227 });
7228
7229 let actual_invisibles = collect_invisibles_from_new_editor(
7230 cx,
7231 EditorMode::Full,
7232 &input_text,
7233 px(editor_width),
7234 show_line_numbers,
7235 );
7236
7237 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
7238 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
7239 let mut i = 0;
7240 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
7241 i = actual_index;
7242 match expected_invisibles.get(i) {
7243 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
7244 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
7245 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
7246 _ => {
7247 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
7248 }
7249 },
7250 None => {
7251 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
7252 }
7253 }
7254 }
7255 let missing_expected_invisibles = &expected_invisibles[i + 1..];
7256 assert!(
7257 missing_expected_invisibles.is_empty(),
7258 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
7259 );
7260
7261 editor_width += resize_step;
7262 }
7263 }
7264 }
7265
7266 #[gpui::test]
7267 fn test_inline_completion_popover_text(cx: &mut TestAppContext) {
7268 init_test(cx, |_| {});
7269
7270 // Test case 1: Simple insertion
7271 {
7272 let window = cx.add_window(|cx| {
7273 let buffer = MultiBuffer::build_simple("Hello, world!", cx);
7274 Editor::new(EditorMode::Full, buffer, None, true, cx)
7275 });
7276 let cx = &mut VisualTestContext::from_window(*window, cx);
7277
7278 window
7279 .update(cx, |editor, cx| {
7280 let snapshot = editor.snapshot(cx);
7281 let edit_range = snapshot.buffer_snapshot.anchor_after(Point::new(0, 6))
7282 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 6));
7283 let edits = vec![(edit_range, " beautiful".to_string())];
7284
7285 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7286
7287 assert_eq!(text, "Hello, beautiful world!");
7288 assert_eq!(highlights.len(), 1);
7289 assert_eq!(highlights[0].0, 6..16);
7290 assert_eq!(
7291 highlights[0].1.background_color,
7292 Some(cx.theme().status().created_background)
7293 );
7294 })
7295 .unwrap();
7296 }
7297
7298 // Test case 2: Replacement
7299 {
7300 let window = cx.add_window(|cx| {
7301 let buffer = MultiBuffer::build_simple("This is a test.", cx);
7302 Editor::new(EditorMode::Full, buffer, None, true, cx)
7303 });
7304 let cx = &mut VisualTestContext::from_window(*window, cx);
7305
7306 window
7307 .update(cx, |editor, cx| {
7308 let snapshot = editor.snapshot(cx);
7309 let edits = vec![(
7310 snapshot.buffer_snapshot.anchor_after(Point::new(0, 0))
7311 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 4)),
7312 "That".to_string(),
7313 )];
7314
7315 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7316
7317 assert_eq!(text, "That is a test.");
7318 assert_eq!(highlights.len(), 1);
7319 assert_eq!(highlights[0].0, 0..4);
7320 assert_eq!(
7321 highlights[0].1.background_color,
7322 Some(cx.theme().status().created_background)
7323 );
7324 })
7325 .unwrap();
7326 }
7327
7328 // Test case 3: Multiple edits
7329 {
7330 let window = cx.add_window(|cx| {
7331 let buffer = MultiBuffer::build_simple("Hello, world!", cx);
7332 Editor::new(EditorMode::Full, buffer, None, true, cx)
7333 });
7334 let cx = &mut VisualTestContext::from_window(*window, cx);
7335
7336 window
7337 .update(cx, |editor, cx| {
7338 let snapshot = editor.snapshot(cx);
7339 let edits = vec![
7340 (
7341 snapshot.buffer_snapshot.anchor_after(Point::new(0, 0))
7342 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 5)),
7343 "Greetings".into(),
7344 ),
7345 (
7346 snapshot.buffer_snapshot.anchor_after(Point::new(0, 12))
7347 ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 12)),
7348 " and universe".into(),
7349 ),
7350 ];
7351
7352 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7353
7354 assert_eq!(text, "Greetings, world and universe!");
7355 assert_eq!(highlights.len(), 2);
7356 assert_eq!(highlights[0].0, 0..9);
7357 assert_eq!(highlights[1].0, 16..29);
7358 assert_eq!(
7359 highlights[0].1.background_color,
7360 Some(cx.theme().status().created_background)
7361 );
7362 assert_eq!(
7363 highlights[1].1.background_color,
7364 Some(cx.theme().status().created_background)
7365 );
7366 })
7367 .unwrap();
7368 }
7369
7370 // Test case 4: Multiple lines with edits
7371 {
7372 let window = cx.add_window(|cx| {
7373 let buffer = MultiBuffer::build_simple(
7374 "First line\nSecond line\nThird line\nFourth line",
7375 cx,
7376 );
7377 Editor::new(EditorMode::Full, buffer, None, true, cx)
7378 });
7379 let cx = &mut VisualTestContext::from_window(*window, cx);
7380
7381 window
7382 .update(cx, |editor, cx| {
7383 let snapshot = editor.snapshot(cx);
7384 let edits = vec![
7385 (
7386 snapshot.buffer_snapshot.anchor_before(Point::new(1, 7))
7387 ..snapshot.buffer_snapshot.anchor_before(Point::new(1, 11)),
7388 "modified".to_string(),
7389 ),
7390 (
7391 snapshot.buffer_snapshot.anchor_before(Point::new(2, 0))
7392 ..snapshot.buffer_snapshot.anchor_before(Point::new(2, 10)),
7393 "New third line".to_string(),
7394 ),
7395 (
7396 snapshot.buffer_snapshot.anchor_before(Point::new(3, 6))
7397 ..snapshot.buffer_snapshot.anchor_before(Point::new(3, 6)),
7398 " updated".to_string(),
7399 ),
7400 ];
7401
7402 let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
7403
7404 assert_eq!(text, "Second modified\nNew third line\nFourth updated line");
7405 assert_eq!(highlights.len(), 3);
7406 assert_eq!(highlights[0].0, 7..15); // "modified"
7407 assert_eq!(highlights[1].0, 16..30); // "New third line"
7408 assert_eq!(highlights[2].0, 37..45); // " updated"
7409
7410 for highlight in &highlights {
7411 assert_eq!(
7412 highlight.1.background_color,
7413 Some(cx.theme().status().created_background)
7414 );
7415 }
7416 })
7417 .unwrap();
7418 }
7419 }
7420
7421 fn collect_invisibles_from_new_editor(
7422 cx: &mut TestAppContext,
7423 editor_mode: EditorMode,
7424 input_text: &str,
7425 editor_width: Pixels,
7426 show_line_numbers: bool,
7427 ) -> Vec<Invisible> {
7428 info!(
7429 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
7430 editor_width.0
7431 );
7432 let window = cx.add_window(|cx| {
7433 let buffer = MultiBuffer::build_simple(input_text, cx);
7434 Editor::new(editor_mode, buffer, None, true, cx)
7435 });
7436 let cx = &mut VisualTestContext::from_window(*window, cx);
7437 let editor = window.root(cx).unwrap();
7438
7439 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
7440 window
7441 .update(cx, |editor, cx| {
7442 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
7443 editor.set_wrap_width(Some(editor_width), cx);
7444 editor.set_show_line_numbers(show_line_numbers, cx);
7445 })
7446 .unwrap();
7447 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
7448 EditorElement::new(&editor, style)
7449 });
7450 state
7451 .position_map
7452 .line_layouts
7453 .iter()
7454 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
7455 .cloned()
7456 .collect()
7457 }
7458}