1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 inlay_hint_settings,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
19 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayDiffHunk, DisplayPoint,
20 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
21 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
22 GoToPreviousHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
23 InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown,
24 PageUp, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap,
25 StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
26 FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
27 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap, HashSet};
32use file_icons::FileIcons;
33use git::{blame::BlameEntry, status::FileStatus, Oid};
34use gpui::{
35 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
36 point, px, quad, relative, size, solid_background, svg, transparent_black, Action, AnyElement,
37 App, AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner,
38 Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
39 Focusable as _, FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement,
40 Keystroke, Length, ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent,
41 MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine,
42 SharedString, Size, StatefulInteractiveElement, Style, Styled, Subscription, TextRun,
43 TextStyleRefinement, Window,
44};
45use inline_completion::Direction;
46use itertools::Itertools;
47use language::{
48 language_settings::{
49 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
50 ShowWhitespaceSetting,
51 },
52 ChunkRendererContext,
53};
54use lsp::DiagnosticSeverity;
55use multi_buffer::{
56 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
57 RowInfo,
58};
59use project::project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings};
60use settings::Settings;
61use smallvec::{smallvec, SmallVec};
62use std::{
63 any::TypeId,
64 borrow::Cow,
65 cmp::{self, Ordering},
66 fmt::{self, Write},
67 iter, mem,
68 ops::{Deref, Range},
69 rc::Rc,
70 sync::Arc,
71};
72use sum_tree::Bias;
73use text::BufferId;
74use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
75use ui::{
76 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
77 POPOVER_Y_PADDING,
78};
79use unicode_segmentation::UnicodeSegmentation;
80use util::{debug_panic, RangeExt, ResultExt};
81use workspace::{item::Item, notifications::NotifyTaskExt};
82
83const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
84const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
85
86struct SelectionLayout {
87 head: DisplayPoint,
88 cursor_shape: CursorShape,
89 is_newest: bool,
90 is_local: bool,
91 range: Range<DisplayPoint>,
92 active_rows: Range<DisplayRow>,
93 user_name: Option<SharedString>,
94}
95
96impl SelectionLayout {
97 fn new<T: ToPoint + ToDisplayPoint + Clone>(
98 selection: Selection<T>,
99 line_mode: bool,
100 cursor_shape: CursorShape,
101 map: &DisplaySnapshot,
102 is_newest: bool,
103 is_local: bool,
104 user_name: Option<SharedString>,
105 ) -> Self {
106 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
107 let display_selection = point_selection.map(|p| p.to_display_point(map));
108 let mut range = display_selection.range();
109 let mut head = display_selection.head();
110 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
111 ..map.next_line_boundary(point_selection.end).1.row();
112
113 // vim visual line mode
114 if line_mode {
115 let point_range = map.expand_to_line(point_selection.range());
116 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
117 }
118
119 // any vim visual mode (including line mode)
120 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
121 && !range.is_empty()
122 && !selection.reversed
123 {
124 if head.column() > 0 {
125 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
126 } else if head.row().0 > 0 && head != map.max_point() {
127 head = map.clip_point(
128 DisplayPoint::new(
129 head.row().previous_row(),
130 map.line_len(head.row().previous_row()),
131 ),
132 Bias::Left,
133 );
134 // updating range.end is a no-op unless you're cursor is
135 // on the newline containing a multi-buffer divider
136 // in which case the clip_point may have moved the head up
137 // an additional row.
138 range.end = DisplayPoint::new(head.row().next_row(), 0);
139 active_rows.end = head.row();
140 }
141 }
142
143 Self {
144 head,
145 cursor_shape,
146 is_newest,
147 is_local,
148 range,
149 active_rows,
150 user_name,
151 }
152 }
153}
154
155pub struct EditorElement {
156 editor: Entity<Editor>,
157 style: EditorStyle,
158}
159
160type DisplayRowDelta = u32;
161
162impl EditorElement {
163 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
164
165 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
166 Self {
167 editor: editor.clone(),
168 style,
169 }
170 }
171
172 fn register_actions(&self, window: &mut Window, cx: &mut App) {
173 let editor = &self.editor;
174 editor.update(cx, |editor, cx| {
175 for action in editor.editor_actions.borrow().values() {
176 (action)(window, cx)
177 }
178 });
179
180 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
181 crate::clangd_ext::apply_related_actions(editor, window, cx);
182 register_action(editor, window, Editor::open_context_menu);
183 register_action(editor, window, Editor::move_left);
184 register_action(editor, window, Editor::move_right);
185 register_action(editor, window, Editor::move_down);
186 register_action(editor, window, Editor::move_down_by_lines);
187 register_action(editor, window, Editor::select_down_by_lines);
188 register_action(editor, window, Editor::move_up);
189 register_action(editor, window, Editor::move_up_by_lines);
190 register_action(editor, window, Editor::select_up_by_lines);
191 register_action(editor, window, Editor::select_page_down);
192 register_action(editor, window, Editor::select_page_up);
193 register_action(editor, window, Editor::cancel);
194 register_action(editor, window, Editor::newline);
195 register_action(editor, window, Editor::newline_above);
196 register_action(editor, window, Editor::newline_below);
197 register_action(editor, window, Editor::backspace);
198 register_action(editor, window, Editor::delete);
199 register_action(editor, window, Editor::tab);
200 register_action(editor, window, Editor::backtab);
201 register_action(editor, window, Editor::indent);
202 register_action(editor, window, Editor::outdent);
203 register_action(editor, window, Editor::autoindent);
204 register_action(editor, window, Editor::delete_line);
205 register_action(editor, window, Editor::join_lines);
206 register_action(editor, window, Editor::sort_lines_case_sensitive);
207 register_action(editor, window, Editor::sort_lines_case_insensitive);
208 register_action(editor, window, Editor::reverse_lines);
209 register_action(editor, window, Editor::shuffle_lines);
210 register_action(editor, window, Editor::convert_to_upper_case);
211 register_action(editor, window, Editor::convert_to_lower_case);
212 register_action(editor, window, Editor::convert_to_title_case);
213 register_action(editor, window, Editor::convert_to_snake_case);
214 register_action(editor, window, Editor::convert_to_kebab_case);
215 register_action(editor, window, Editor::convert_to_upper_camel_case);
216 register_action(editor, window, Editor::convert_to_lower_camel_case);
217 register_action(editor, window, Editor::convert_to_opposite_case);
218 register_action(editor, window, Editor::delete_to_previous_word_start);
219 register_action(editor, window, Editor::delete_to_previous_subword_start);
220 register_action(editor, window, Editor::delete_to_next_word_end);
221 register_action(editor, window, Editor::delete_to_next_subword_end);
222 register_action(editor, window, Editor::delete_to_beginning_of_line);
223 register_action(editor, window, Editor::delete_to_end_of_line);
224 register_action(editor, window, Editor::cut_to_end_of_line);
225 register_action(editor, window, Editor::duplicate_line_up);
226 register_action(editor, window, Editor::duplicate_line_down);
227 register_action(editor, window, Editor::duplicate_selection);
228 register_action(editor, window, Editor::move_line_up);
229 register_action(editor, window, Editor::move_line_down);
230 register_action(editor, window, Editor::transpose);
231 register_action(editor, window, Editor::rewrap);
232 register_action(editor, window, Editor::cut);
233 register_action(editor, window, Editor::kill_ring_cut);
234 register_action(editor, window, Editor::kill_ring_yank);
235 register_action(editor, window, Editor::copy);
236 register_action(editor, window, Editor::paste);
237 register_action(editor, window, Editor::undo);
238 register_action(editor, window, Editor::redo);
239 register_action(editor, window, Editor::move_page_up);
240 register_action(editor, window, Editor::move_page_down);
241 register_action(editor, window, Editor::next_screen);
242 register_action(editor, window, Editor::scroll_cursor_top);
243 register_action(editor, window, Editor::scroll_cursor_center);
244 register_action(editor, window, Editor::scroll_cursor_bottom);
245 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
246 register_action(editor, window, |editor, _: &LineDown, window, cx| {
247 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
248 });
249 register_action(editor, window, |editor, _: &LineUp, window, cx| {
250 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
251 });
252 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
253 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
254 });
255 register_action(
256 editor,
257 window,
258 |editor, HandleInput(text): &HandleInput, window, cx| {
259 if text.is_empty() {
260 return;
261 }
262 editor.handle_input(text, window, cx);
263 },
264 );
265 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
266 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
267 });
268 register_action(editor, window, |editor, _: &PageDown, window, cx| {
269 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
270 });
271 register_action(editor, window, |editor, _: &PageUp, window, cx| {
272 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
273 });
274 register_action(editor, window, Editor::move_to_previous_word_start);
275 register_action(editor, window, Editor::move_to_previous_subword_start);
276 register_action(editor, window, Editor::move_to_next_word_end);
277 register_action(editor, window, Editor::move_to_next_subword_end);
278 register_action(editor, window, Editor::move_to_beginning_of_line);
279 register_action(editor, window, Editor::move_to_end_of_line);
280 register_action(editor, window, Editor::move_to_start_of_paragraph);
281 register_action(editor, window, Editor::move_to_end_of_paragraph);
282 register_action(editor, window, Editor::move_to_beginning);
283 register_action(editor, window, Editor::move_to_end);
284 register_action(editor, window, Editor::move_to_start_of_excerpt);
285 register_action(editor, window, Editor::move_to_end_of_excerpt);
286 register_action(editor, window, Editor::select_up);
287 register_action(editor, window, Editor::select_down);
288 register_action(editor, window, Editor::select_left);
289 register_action(editor, window, Editor::select_right);
290 register_action(editor, window, Editor::select_to_previous_word_start);
291 register_action(editor, window, Editor::select_to_previous_subword_start);
292 register_action(editor, window, Editor::select_to_next_word_end);
293 register_action(editor, window, Editor::select_to_next_subword_end);
294 register_action(editor, window, Editor::select_to_beginning_of_line);
295 register_action(editor, window, Editor::select_to_end_of_line);
296 register_action(editor, window, Editor::select_to_start_of_paragraph);
297 register_action(editor, window, Editor::select_to_end_of_paragraph);
298 register_action(editor, window, Editor::select_to_start_of_excerpt);
299 register_action(editor, window, Editor::select_to_end_of_excerpt);
300 register_action(editor, window, Editor::select_to_beginning);
301 register_action(editor, window, Editor::select_to_end);
302 register_action(editor, window, Editor::select_all);
303 register_action(editor, window, |editor, action, window, cx| {
304 editor.select_all_matches(action, window, cx).log_err();
305 });
306 register_action(editor, window, Editor::select_line);
307 register_action(editor, window, Editor::split_selection_into_lines);
308 register_action(editor, window, Editor::add_selection_above);
309 register_action(editor, window, Editor::add_selection_below);
310 register_action(editor, window, |editor, action, window, cx| {
311 editor.select_next(action, window, cx).log_err();
312 });
313 register_action(editor, window, |editor, action, window, cx| {
314 editor.select_previous(action, window, cx).log_err();
315 });
316 register_action(editor, window, Editor::toggle_comments);
317 register_action(editor, window, Editor::select_larger_syntax_node);
318 register_action(editor, window, Editor::select_smaller_syntax_node);
319 register_action(editor, window, Editor::select_enclosing_symbol);
320 register_action(editor, window, Editor::move_to_enclosing_bracket);
321 register_action(editor, window, Editor::undo_selection);
322 register_action(editor, window, Editor::redo_selection);
323 if !editor.read(cx).is_singleton(cx) {
324 register_action(editor, window, Editor::expand_excerpts);
325 register_action(editor, window, Editor::expand_excerpts_up);
326 register_action(editor, window, Editor::expand_excerpts_down);
327 }
328 register_action(editor, window, Editor::go_to_diagnostic);
329 register_action(editor, window, Editor::go_to_prev_diagnostic);
330 register_action(editor, window, Editor::go_to_next_hunk);
331 register_action(editor, window, Editor::go_to_prev_hunk);
332 register_action(editor, window, |editor, action, window, cx| {
333 editor
334 .go_to_definition(action, window, cx)
335 .detach_and_log_err(cx);
336 });
337 register_action(editor, window, |editor, action, window, cx| {
338 editor
339 .go_to_definition_split(action, window, cx)
340 .detach_and_log_err(cx);
341 });
342 register_action(editor, window, |editor, action, window, cx| {
343 editor
344 .go_to_declaration(action, window, cx)
345 .detach_and_log_err(cx);
346 });
347 register_action(editor, window, |editor, action, window, cx| {
348 editor
349 .go_to_declaration_split(action, window, cx)
350 .detach_and_log_err(cx);
351 });
352 register_action(editor, window, |editor, action, window, cx| {
353 editor
354 .go_to_implementation(action, window, cx)
355 .detach_and_log_err(cx);
356 });
357 register_action(editor, window, |editor, action, window, cx| {
358 editor
359 .go_to_implementation_split(action, window, cx)
360 .detach_and_log_err(cx);
361 });
362 register_action(editor, window, |editor, action, window, cx| {
363 editor
364 .go_to_type_definition(action, window, cx)
365 .detach_and_log_err(cx);
366 });
367 register_action(editor, window, |editor, action, window, cx| {
368 editor
369 .go_to_type_definition_split(action, window, cx)
370 .detach_and_log_err(cx);
371 });
372 register_action(editor, window, Editor::open_url);
373 register_action(editor, window, Editor::open_selected_filename);
374 register_action(editor, window, Editor::fold);
375 register_action(editor, window, Editor::fold_at_level);
376 register_action(editor, window, Editor::fold_all);
377 register_action(editor, window, Editor::fold_function_bodies);
378 register_action(editor, window, Editor::fold_at);
379 register_action(editor, window, Editor::fold_recursive);
380 register_action(editor, window, Editor::toggle_fold);
381 register_action(editor, window, Editor::toggle_fold_recursive);
382 register_action(editor, window, Editor::unfold_lines);
383 register_action(editor, window, Editor::unfold_recursive);
384 register_action(editor, window, Editor::unfold_all);
385 register_action(editor, window, Editor::unfold_at);
386 register_action(editor, window, Editor::fold_selected_ranges);
387 register_action(editor, window, Editor::set_mark);
388 register_action(editor, window, Editor::swap_selection_ends);
389 register_action(editor, window, Editor::show_completions);
390 register_action(editor, window, Editor::toggle_code_actions);
391 register_action(editor, window, Editor::open_excerpts);
392 register_action(editor, window, Editor::open_excerpts_in_split);
393 register_action(editor, window, Editor::open_proposed_changes_editor);
394 register_action(editor, window, Editor::toggle_soft_wrap);
395 register_action(editor, window, Editor::toggle_tab_bar);
396 register_action(editor, window, Editor::toggle_line_numbers);
397 register_action(editor, window, Editor::toggle_relative_line_numbers);
398 register_action(editor, window, Editor::toggle_indent_guides);
399 register_action(editor, window, Editor::toggle_inlay_hints);
400 register_action(editor, window, Editor::toggle_edit_predictions);
401 register_action(editor, window, Editor::toggle_inline_diagnostics);
402 register_action(editor, window, hover_popover::hover);
403 register_action(editor, window, Editor::reveal_in_finder);
404 register_action(editor, window, Editor::copy_path);
405 register_action(editor, window, Editor::copy_relative_path);
406 register_action(editor, window, Editor::copy_file_name);
407 register_action(editor, window, Editor::copy_file_name_without_extension);
408 register_action(editor, window, Editor::copy_highlight_json);
409 register_action(editor, window, Editor::copy_permalink_to_line);
410 register_action(editor, window, Editor::open_permalink_to_line);
411 register_action(editor, window, Editor::copy_file_location);
412 register_action(editor, window, Editor::toggle_git_blame);
413 register_action(editor, window, Editor::toggle_git_blame_inline);
414 register_action(editor, window, Editor::toggle_selected_diff_hunks);
415 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
416 register_action(editor, window, Editor::stage_and_next);
417 register_action(editor, window, Editor::unstage_and_next);
418 register_action(editor, window, Editor::expand_all_diff_hunks);
419
420 register_action(editor, window, |editor, action, window, cx| {
421 if let Some(task) = editor.format(action, window, cx) {
422 task.detach_and_notify_err(window, cx);
423 } else {
424 cx.propagate();
425 }
426 });
427 register_action(editor, window, |editor, action, window, cx| {
428 if let Some(task) = editor.format_selections(action, window, cx) {
429 task.detach_and_notify_err(window, cx);
430 } else {
431 cx.propagate();
432 }
433 });
434 register_action(editor, window, |editor, action, window, cx| {
435 if let Some(task) = editor.organize_imports(action, window, cx) {
436 task.detach_and_notify_err(window, cx);
437 } else {
438 cx.propagate();
439 }
440 });
441 register_action(editor, window, Editor::restart_language_server);
442 register_action(editor, window, Editor::show_character_palette);
443 register_action(editor, window, |editor, action, window, cx| {
444 if let Some(task) = editor.confirm_completion(action, window, cx) {
445 task.detach_and_notify_err(window, cx);
446 } else {
447 cx.propagate();
448 }
449 });
450 register_action(editor, window, |editor, action, window, cx| {
451 if let Some(task) = editor.compose_completion(action, window, cx) {
452 task.detach_and_notify_err(window, cx);
453 } else {
454 cx.propagate();
455 }
456 });
457 register_action(editor, window, |editor, action, window, cx| {
458 if let Some(task) = editor.confirm_code_action(action, window, cx) {
459 task.detach_and_notify_err(window, cx);
460 } else {
461 cx.propagate();
462 }
463 });
464 register_action(editor, window, |editor, action, window, cx| {
465 if let Some(task) = editor.rename(action, window, cx) {
466 task.detach_and_notify_err(window, cx);
467 } else {
468 cx.propagate();
469 }
470 });
471 register_action(editor, window, |editor, action, window, cx| {
472 if let Some(task) = editor.confirm_rename(action, window, cx) {
473 task.detach_and_notify_err(window, cx);
474 } else {
475 cx.propagate();
476 }
477 });
478 register_action(editor, window, |editor, action, window, cx| {
479 if let Some(task) = editor.find_all_references(action, window, cx) {
480 task.detach_and_log_err(cx);
481 } else {
482 cx.propagate();
483 }
484 });
485 register_action(editor, window, Editor::show_signature_help);
486 register_action(editor, window, Editor::next_edit_prediction);
487 register_action(editor, window, Editor::previous_edit_prediction);
488 register_action(editor, window, Editor::show_inline_completion);
489 register_action(editor, window, Editor::context_menu_first);
490 register_action(editor, window, Editor::context_menu_prev);
491 register_action(editor, window, Editor::context_menu_next);
492 register_action(editor, window, Editor::context_menu_last);
493 register_action(editor, window, Editor::display_cursor_names);
494 register_action(editor, window, Editor::unique_lines_case_insensitive);
495 register_action(editor, window, Editor::unique_lines_case_sensitive);
496 register_action(editor, window, Editor::accept_partial_inline_completion);
497 register_action(editor, window, Editor::accept_edit_prediction);
498 register_action(editor, window, Editor::restore_file);
499 register_action(editor, window, Editor::git_restore);
500 register_action(editor, window, Editor::apply_all_diff_hunks);
501 register_action(editor, window, Editor::apply_selected_diff_hunks);
502 register_action(editor, window, Editor::open_active_item_in_terminal);
503 register_action(editor, window, Editor::reload_file);
504 register_action(editor, window, Editor::spawn_nearest_task);
505 register_action(editor, window, Editor::insert_uuid_v4);
506 register_action(editor, window, Editor::insert_uuid_v7);
507 register_action(editor, window, Editor::open_selections_in_multibuffer);
508 }
509
510 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
511 let position_map = layout.position_map.clone();
512 window.on_key_event({
513 let editor = self.editor.clone();
514 move |event: &ModifiersChangedEvent, phase, window, cx| {
515 if phase != DispatchPhase::Bubble {
516 return;
517 }
518 editor.update(cx, |editor, cx| {
519 let inlay_hint_settings = inlay_hint_settings(
520 editor.selections.newest_anchor().head(),
521 &editor.buffer.read(cx).snapshot(cx),
522 cx,
523 );
524
525 if let Some(inlay_modifiers) = inlay_hint_settings
526 .toggle_on_modifiers_press
527 .as_ref()
528 .filter(|modifiers| modifiers.modified())
529 {
530 editor.refresh_inlay_hints(
531 InlayHintRefreshReason::ModifiersChanged(
532 inlay_modifiers == &event.modifiers,
533 ),
534 cx,
535 );
536 }
537
538 if editor.hover_state.focused(window, cx) {
539 return;
540 }
541
542 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
543 })
544 }
545 });
546 }
547
548 fn mouse_left_down(
549 editor: &mut Editor,
550 event: &MouseDownEvent,
551 hovered_hunk: Option<Range<Anchor>>,
552 position_map: &PositionMap,
553 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
554 window: &mut Window,
555 cx: &mut Context<Editor>,
556 ) {
557 if window.default_prevented() {
558 return;
559 }
560
561 let text_hitbox = &position_map.text_hitbox;
562 let gutter_hitbox = &position_map.gutter_hitbox;
563 let mut click_count = event.click_count;
564 let mut modifiers = event.modifiers;
565
566 if let Some(hovered_hunk) = hovered_hunk {
567 editor.toggle_single_diff_hunk(hovered_hunk, cx);
568 cx.notify();
569 return;
570 } else if gutter_hitbox.is_hovered(window) {
571 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
572 } else if !text_hitbox.is_hovered(window) {
573 return;
574 }
575
576 let is_singleton = editor.buffer().read(cx).is_singleton();
577
578 if click_count == 2 && !is_singleton {
579 match EditorSettings::get_global(cx).double_click_in_multibuffer {
580 DoubleClickInMultibuffer::Select => {
581 // do nothing special on double click, all selection logic is below
582 }
583 DoubleClickInMultibuffer::Open => {
584 if modifiers.alt {
585 // if double click is made with alt, pretend it's a regular double click without opening and alt,
586 // and run the selection logic.
587 modifiers.alt = false;
588 } else {
589 let scroll_position_row =
590 position_map.scroll_pixel_position.y / position_map.line_height;
591 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
592 + position_map.scroll_pixel_position.y)
593 / position_map.line_height)
594 as u32;
595 let multi_buffer_row = position_map
596 .snapshot
597 .display_point_to_point(
598 DisplayPoint::new(DisplayRow(display_row), 0),
599 Bias::Right,
600 )
601 .row;
602 let line_offset_from_top = display_row - scroll_position_row as u32;
603 // if double click is made without alt, open the corresponding excerp
604 editor.open_excerpts_common(
605 Some(JumpData::MultiBufferRow {
606 row: MultiBufferRow(multi_buffer_row),
607 line_offset_from_top,
608 }),
609 false,
610 window,
611 cx,
612 );
613 return;
614 }
615 }
616 }
617 }
618
619 let point_for_position = position_map.point_for_position(event.position);
620 let position = point_for_position.previous_valid;
621 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
622 editor.select(
623 SelectPhase::BeginColumnar {
624 position,
625 reset: false,
626 goal_column: point_for_position.exact_unclipped.column(),
627 },
628 window,
629 cx,
630 );
631 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
632 {
633 editor.select(
634 SelectPhase::Extend {
635 position,
636 click_count,
637 },
638 window,
639 cx,
640 );
641 } else {
642 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
643 let multi_cursor_modifier = match multi_cursor_setting {
644 MultiCursorModifier::Alt => modifiers.alt,
645 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
646 };
647 editor.select(
648 SelectPhase::Begin {
649 position,
650 add: multi_cursor_modifier,
651 click_count,
652 },
653 window,
654 cx,
655 );
656 }
657 cx.stop_propagation();
658
659 if !is_singleton {
660 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
661 + position_map.scroll_pixel_position.y)
662 / position_map.line_height) as u32;
663 let multi_buffer_row = position_map
664 .snapshot
665 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
666 .row;
667 if line_numbers
668 .get(&MultiBufferRow(multi_buffer_row))
669 .and_then(|line_number| line_number.hitbox.as_ref())
670 .is_some_and(|hitbox| hitbox.contains(&event.position))
671 {
672 let scroll_position_row =
673 position_map.scroll_pixel_position.y / position_map.line_height;
674 let line_offset_from_top = display_row - scroll_position_row as u32;
675
676 editor.open_excerpts_common(
677 Some(JumpData::MultiBufferRow {
678 row: MultiBufferRow(multi_buffer_row),
679 line_offset_from_top,
680 }),
681 modifiers.alt,
682 window,
683 cx,
684 );
685 cx.stop_propagation();
686 }
687 }
688 }
689
690 fn mouse_right_down(
691 editor: &mut Editor,
692 event: &MouseDownEvent,
693 position_map: &PositionMap,
694 window: &mut Window,
695 cx: &mut Context<Editor>,
696 ) {
697 if !position_map.text_hitbox.is_hovered(window) {
698 return;
699 }
700 let point_for_position = position_map.point_for_position(event.position);
701 mouse_context_menu::deploy_context_menu(
702 editor,
703 Some(event.position),
704 point_for_position.previous_valid,
705 window,
706 cx,
707 );
708 cx.stop_propagation();
709 }
710
711 fn mouse_middle_down(
712 editor: &mut Editor,
713 event: &MouseDownEvent,
714 position_map: &PositionMap,
715 window: &mut Window,
716 cx: &mut Context<Editor>,
717 ) {
718 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
719 return;
720 }
721
722 let point_for_position = position_map.point_for_position(event.position);
723 let position = point_for_position.previous_valid;
724
725 editor.select(
726 SelectPhase::BeginColumnar {
727 position,
728 reset: true,
729 goal_column: point_for_position.exact_unclipped.column(),
730 },
731 window,
732 cx,
733 );
734 }
735
736 fn mouse_up(
737 editor: &mut Editor,
738 event: &MouseUpEvent,
739 position_map: &PositionMap,
740 window: &mut Window,
741 cx: &mut Context<Editor>,
742 ) {
743 let text_hitbox = &position_map.text_hitbox;
744 let end_selection = editor.has_pending_selection();
745 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
746
747 if end_selection {
748 editor.select(SelectPhase::End, window, cx);
749 }
750
751 if end_selection && pending_nonempty_selections {
752 cx.stop_propagation();
753 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
754 && event.button == MouseButton::Middle
755 {
756 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
757 return;
758 }
759
760 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
761 if EditorSettings::get_global(cx).middle_click_paste {
762 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
763 let point_for_position = position_map.point_for_position(event.position);
764 let position = point_for_position.previous_valid;
765
766 editor.select(
767 SelectPhase::Begin {
768 position,
769 add: false,
770 click_count: 1,
771 },
772 window,
773 cx,
774 );
775 editor.insert(&text, window, cx);
776 }
777 cx.stop_propagation()
778 }
779 }
780 }
781
782 fn click(
783 editor: &mut Editor,
784 event: &ClickEvent,
785 position_map: &PositionMap,
786 window: &mut Window,
787 cx: &mut Context<Editor>,
788 ) {
789 let text_hitbox = &position_map.text_hitbox;
790 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
791
792 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
793 let multi_cursor_modifier = match multi_cursor_setting {
794 MultiCursorModifier::Alt => event.modifiers().secondary(),
795 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
796 };
797
798 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
799 let point = position_map.point_for_position(event.up.position);
800 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
801
802 cx.stop_propagation();
803 }
804 }
805
806 fn mouse_dragged(
807 editor: &mut Editor,
808 event: &MouseMoveEvent,
809 position_map: &PositionMap,
810 window: &mut Window,
811 cx: &mut Context<Editor>,
812 ) {
813 if !editor.has_pending_selection() {
814 return;
815 }
816
817 let text_bounds = position_map.text_hitbox.bounds;
818 let point_for_position = position_map.point_for_position(event.position);
819 let mut scroll_delta = gpui::Point::<f32>::default();
820 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
821 let top = text_bounds.origin.y + vertical_margin;
822 let bottom = text_bounds.bottom_left().y - vertical_margin;
823 if event.position.y < top {
824 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
825 }
826 if event.position.y > bottom {
827 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
828 }
829
830 // We need horizontal width of text
831 let style = editor.style.clone().unwrap_or_default();
832 let font_id = window.text_system().resolve_font(&style.text.font());
833 let font_size = style.text.font_size.to_pixels(window.rem_size());
834 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
835
836 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
837
838 let scroll_space: Pixels = scroll_margin_x * em_width;
839
840 let left = text_bounds.origin.x + scroll_space;
841 let right = text_bounds.top_right().x - scroll_space;
842
843 if event.position.x < left {
844 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
845 }
846 if event.position.x > right {
847 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
848 }
849
850 editor.select(
851 SelectPhase::Update {
852 position: point_for_position.previous_valid,
853 goal_column: point_for_position.exact_unclipped.column(),
854 scroll_delta,
855 },
856 window,
857 cx,
858 );
859 }
860
861 fn mouse_moved(
862 editor: &mut Editor,
863 event: &MouseMoveEvent,
864 position_map: &PositionMap,
865 window: &mut Window,
866 cx: &mut Context<Editor>,
867 ) {
868 let text_hitbox = &position_map.text_hitbox;
869 let gutter_hitbox = &position_map.gutter_hitbox;
870 let modifiers = event.modifiers;
871 let gutter_hovered = gutter_hitbox.is_hovered(window);
872 editor.set_gutter_hovered(gutter_hovered, cx);
873
874 // Don't trigger hover popover if mouse is hovering over context menu
875 if text_hitbox.is_hovered(window) {
876 let point_for_position = position_map.point_for_position(event.position);
877
878 editor.update_hovered_link(
879 point_for_position,
880 &position_map.snapshot,
881 modifiers,
882 window,
883 cx,
884 );
885
886 if let Some(point) = point_for_position.as_valid() {
887 let anchor = position_map
888 .snapshot
889 .buffer_snapshot
890 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
891 hover_at(editor, Some(anchor), window, cx);
892 Self::update_visible_cursor(editor, point, position_map, window, cx);
893 } else {
894 hover_at(editor, None, window, cx);
895 }
896 } else {
897 editor.hide_hovered_link(cx);
898 hover_at(editor, None, window, cx);
899 if gutter_hovered {
900 cx.stop_propagation();
901 }
902 }
903 }
904
905 fn update_visible_cursor(
906 editor: &mut Editor,
907 point: DisplayPoint,
908 position_map: &PositionMap,
909 window: &mut Window,
910 cx: &mut Context<Editor>,
911 ) {
912 let snapshot = &position_map.snapshot;
913 let Some(hub) = editor.collaboration_hub() else {
914 return;
915 };
916 let start = snapshot.display_snapshot.clip_point(
917 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
918 Bias::Left,
919 );
920 let end = snapshot.display_snapshot.clip_point(
921 DisplayPoint::new(
922 point.row(),
923 (point.column() + 1).min(snapshot.line_len(point.row())),
924 ),
925 Bias::Right,
926 );
927
928 let range = snapshot
929 .buffer_snapshot
930 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
931 ..snapshot
932 .buffer_snapshot
933 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
934
935 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
936 return;
937 };
938 let key = crate::HoveredCursor {
939 replica_id: selection.replica_id,
940 selection_id: selection.selection.id,
941 };
942 editor.hovered_cursors.insert(
943 key.clone(),
944 cx.spawn_in(window, |editor, mut cx| async move {
945 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
946 editor
947 .update(&mut cx, |editor, cx| {
948 editor.hovered_cursors.remove(&key);
949 cx.notify();
950 })
951 .ok();
952 }),
953 );
954 cx.notify()
955 }
956
957 #[allow(clippy::too_many_arguments)]
958 fn layout_selections(
959 &self,
960 start_anchor: Anchor,
961 end_anchor: Anchor,
962 local_selections: &[Selection<Point>],
963 snapshot: &EditorSnapshot,
964 start_row: DisplayRow,
965 end_row: DisplayRow,
966 window: &mut Window,
967 cx: &mut App,
968 ) -> (
969 Vec<(PlayerColor, Vec<SelectionLayout>)>,
970 BTreeMap<DisplayRow, bool>,
971 Option<DisplayPoint>,
972 ) {
973 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
974 let mut active_rows = BTreeMap::new();
975 let mut newest_selection_head = None;
976 self.editor.update(cx, |editor, cx| {
977 if editor.show_local_selections {
978 let mut layouts = Vec::new();
979 let newest = editor.selections.newest(cx);
980 for selection in local_selections.iter().cloned() {
981 let is_empty = selection.start == selection.end;
982 let is_newest = selection == newest;
983
984 let layout = SelectionLayout::new(
985 selection,
986 editor.selections.line_mode,
987 editor.cursor_shape,
988 &snapshot.display_snapshot,
989 is_newest,
990 editor.leader_peer_id.is_none(),
991 None,
992 );
993 if is_newest {
994 newest_selection_head = Some(layout.head);
995 }
996
997 for row in cmp::max(layout.active_rows.start.0, start_row.0)
998 ..=cmp::min(layout.active_rows.end.0, end_row.0)
999 {
1000 let contains_non_empty_selection =
1001 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
1002 *contains_non_empty_selection |= !is_empty;
1003 }
1004 layouts.push(layout);
1005 }
1006
1007 let player = editor.current_user_player_color(cx);
1008 selections.push((player, layouts));
1009 }
1010
1011 if let Some(collaboration_hub) = &editor.collaboration_hub {
1012 // When following someone, render the local selections in their color.
1013 if let Some(leader_id) = editor.leader_peer_id {
1014 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1015 {
1016 if let Some(participant_index) = collaboration_hub
1017 .user_participant_indices(cx)
1018 .get(&collaborator.user_id)
1019 {
1020 if let Some((local_selection_style, _)) = selections.first_mut() {
1021 *local_selection_style = cx
1022 .theme()
1023 .players()
1024 .color_for_participant(participant_index.0);
1025 }
1026 }
1027 }
1028 }
1029
1030 let mut remote_selections = HashMap::default();
1031 for selection in snapshot.remote_selections_in_range(
1032 &(start_anchor..end_anchor),
1033 collaboration_hub.as_ref(),
1034 cx,
1035 ) {
1036 let selection_style =
1037 Self::get_participant_color(selection.participant_index, cx);
1038
1039 // Don't re-render the leader's selections, since the local selections
1040 // match theirs.
1041 if Some(selection.peer_id) == editor.leader_peer_id {
1042 continue;
1043 }
1044 let key = HoveredCursor {
1045 replica_id: selection.replica_id,
1046 selection_id: selection.selection.id,
1047 };
1048
1049 let is_shown =
1050 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1051
1052 remote_selections
1053 .entry(selection.replica_id)
1054 .or_insert((selection_style, Vec::new()))
1055 .1
1056 .push(SelectionLayout::new(
1057 selection.selection,
1058 selection.line_mode,
1059 selection.cursor_shape,
1060 &snapshot.display_snapshot,
1061 false,
1062 false,
1063 if is_shown { selection.user_name } else { None },
1064 ));
1065 }
1066
1067 selections.extend(remote_selections.into_values());
1068 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1069 let layouts = snapshot
1070 .buffer_snapshot
1071 .selections_in_range(&(start_anchor..end_anchor), true)
1072 .map(move |(_, line_mode, cursor_shape, selection)| {
1073 SelectionLayout::new(
1074 selection,
1075 line_mode,
1076 cursor_shape,
1077 &snapshot.display_snapshot,
1078 false,
1079 false,
1080 None,
1081 )
1082 })
1083 .collect::<Vec<_>>();
1084 let player = editor.current_user_player_color(cx);
1085 selections.push((player, layouts));
1086 }
1087 });
1088 (selections, active_rows, newest_selection_head)
1089 }
1090
1091 fn collect_cursors(
1092 &self,
1093 snapshot: &EditorSnapshot,
1094 cx: &mut App,
1095 ) -> Vec<(DisplayPoint, Hsla)> {
1096 let editor = self.editor.read(cx);
1097 let mut cursors = Vec::new();
1098 let mut skip_local = false;
1099 let mut add_cursor = |anchor: Anchor, color| {
1100 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1101 };
1102 // Remote cursors
1103 if let Some(collaboration_hub) = &editor.collaboration_hub {
1104 for remote_selection in snapshot.remote_selections_in_range(
1105 &(Anchor::min()..Anchor::max()),
1106 collaboration_hub.deref(),
1107 cx,
1108 ) {
1109 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1110 add_cursor(remote_selection.selection.head(), color.cursor);
1111 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1112 skip_local = true;
1113 }
1114 }
1115 }
1116 // Local cursors
1117 if !skip_local {
1118 let color = cx.theme().players().local().cursor;
1119 editor.selections.disjoint.iter().for_each(|selection| {
1120 add_cursor(selection.head(), color);
1121 });
1122 if let Some(ref selection) = editor.selections.pending_anchor() {
1123 add_cursor(selection.head(), color);
1124 }
1125 }
1126 cursors
1127 }
1128
1129 #[allow(clippy::too_many_arguments)]
1130 fn layout_visible_cursors(
1131 &self,
1132 snapshot: &EditorSnapshot,
1133 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1134 block_start_rows: &HashSet<DisplayRow>,
1135 visible_display_row_range: Range<DisplayRow>,
1136 line_layouts: &[LineWithInvisibles],
1137 text_hitbox: &Hitbox,
1138 content_origin: gpui::Point<Pixels>,
1139 scroll_position: gpui::Point<f32>,
1140 scroll_pixel_position: gpui::Point<Pixels>,
1141 line_height: Pixels,
1142 em_width: Pixels,
1143 em_advance: Pixels,
1144 autoscroll_containing_element: bool,
1145 window: &mut Window,
1146 cx: &mut App,
1147 ) -> Vec<CursorLayout> {
1148 let mut autoscroll_bounds = None;
1149 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1150 let mut cursors = Vec::new();
1151
1152 let show_local_cursors = editor.show_local_cursors(window, cx);
1153
1154 for (player_color, selections) in selections {
1155 for selection in selections {
1156 let cursor_position = selection.head;
1157
1158 let in_range = visible_display_row_range.contains(&cursor_position.row());
1159 if (selection.is_local && !show_local_cursors)
1160 || !in_range
1161 || block_start_rows.contains(&cursor_position.row())
1162 {
1163 continue;
1164 }
1165
1166 let cursor_row_layout = &line_layouts
1167 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1168 let cursor_column = cursor_position.column() as usize;
1169
1170 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1171 let mut block_width =
1172 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1173 if block_width == Pixels::ZERO {
1174 block_width = em_advance;
1175 }
1176 let block_text = if let CursorShape::Block = selection.cursor_shape {
1177 snapshot
1178 .grapheme_at(cursor_position)
1179 .or_else(|| {
1180 if cursor_column == 0 {
1181 snapshot.placeholder_text().and_then(|s| {
1182 s.graphemes(true).next().map(|s| s.to_string().into())
1183 })
1184 } else {
1185 None
1186 }
1187 })
1188 .and_then(|text| {
1189 let len = text.len();
1190
1191 let font = cursor_row_layout
1192 .font_id_for_index(cursor_column)
1193 .and_then(|cursor_font_id| {
1194 window.text_system().get_font_for_id(cursor_font_id)
1195 })
1196 .unwrap_or(self.style.text.font());
1197
1198 // Invert the text color for the block cursor. Ensure that the text
1199 // color is opaque enough to be visible against the background color.
1200 //
1201 // 0.75 is an arbitrary threshold to determine if the background color is
1202 // opaque enough to use as a text color.
1203 //
1204 // TODO: In the future we should ensure themes have a `text_inverse` color.
1205 let color = if cx.theme().colors().editor_background.a < 0.75 {
1206 match cx.theme().appearance {
1207 Appearance::Dark => Hsla::black(),
1208 Appearance::Light => Hsla::white(),
1209 }
1210 } else {
1211 cx.theme().colors().editor_background
1212 };
1213
1214 window
1215 .text_system()
1216 .shape_line(
1217 text,
1218 cursor_row_layout.font_size,
1219 &[TextRun {
1220 len,
1221 font,
1222 color,
1223 background_color: None,
1224 strikethrough: None,
1225 underline: None,
1226 }],
1227 )
1228 .log_err()
1229 })
1230 } else {
1231 None
1232 };
1233
1234 let x = cursor_character_x - scroll_pixel_position.x;
1235 let y = (cursor_position.row().as_f32()
1236 - scroll_pixel_position.y / line_height)
1237 * line_height;
1238 if selection.is_newest {
1239 editor.pixel_position_of_newest_cursor = Some(point(
1240 text_hitbox.origin.x + x + block_width / 2.,
1241 text_hitbox.origin.y + y + line_height / 2.,
1242 ));
1243
1244 if autoscroll_containing_element {
1245 let top = text_hitbox.origin.y
1246 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1247 * line_height;
1248 let left = text_hitbox.origin.x
1249 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1250 .max(0.)
1251 * em_width;
1252
1253 let bottom = text_hitbox.origin.y
1254 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1255 * line_height;
1256 let right = text_hitbox.origin.x
1257 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1258 * em_width;
1259
1260 autoscroll_bounds =
1261 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1262 }
1263 }
1264
1265 let mut cursor = CursorLayout {
1266 color: player_color.cursor,
1267 block_width,
1268 origin: point(x, y),
1269 line_height,
1270 shape: selection.cursor_shape,
1271 block_text,
1272 cursor_name: None,
1273 };
1274 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1275 string: name,
1276 color: self.style.background,
1277 is_top_row: cursor_position.row().0 == 0,
1278 });
1279 cursor.layout(content_origin, cursor_name, window, cx);
1280 cursors.push(cursor);
1281 }
1282 }
1283
1284 cursors
1285 });
1286
1287 if let Some(bounds) = autoscroll_bounds {
1288 window.request_autoscroll(bounds);
1289 }
1290
1291 cursor_layouts
1292 }
1293
1294 fn layout_scrollbars(
1295 &self,
1296 snapshot: &EditorSnapshot,
1297 scrollbar_range_data: ScrollbarRangeData,
1298 scroll_position: gpui::Point<f32>,
1299 non_visible_cursors: bool,
1300 window: &mut Window,
1301 cx: &mut App,
1302 ) -> AxisPair<Option<ScrollbarLayout>> {
1303 let letter_size = scrollbar_range_data.letter_size;
1304 let text_units_per_page = axis_pair(
1305 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1306 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1307 );
1308
1309 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1310 let show_scrollbars = self.editor.read(cx).show_scrollbars
1311 && match scrollbar_settings.show {
1312 ShowScrollbar::Auto => {
1313 let editor = self.editor.read(cx);
1314 let is_singleton = editor.is_singleton(cx);
1315 // Git
1316 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1317 ||
1318 // Buffer Search Results
1319 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1320 ||
1321 // Selected Text Occurrences
1322 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1323 ||
1324 // Selected Symbol Occurrences
1325 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1326 ||
1327 // Diagnostics
1328 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1329 ||
1330 // Cursors out of sight
1331 non_visible_cursors
1332 ||
1333 // Scrollmanager
1334 editor.scroll_manager.scrollbars_visible()
1335 }
1336 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1337 ShowScrollbar::Always => true,
1338 ShowScrollbar::Never => false,
1339 };
1340
1341 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1342
1343 if snapshot.mode != EditorMode::Full {
1344 return axis_pair(None, None);
1345 }
1346
1347 let visible_range = axis_pair(
1348 axes.horizontal
1349 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1350 axes.vertical
1351 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1352 );
1353
1354 // If a drag took place after we started dragging the scrollbar,
1355 // cancel the scrollbar drag.
1356 if cx.has_active_drag() {
1357 self.editor.update(cx, |editor, cx| {
1358 editor
1359 .scroll_manager
1360 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1361 editor
1362 .scroll_manager
1363 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1364 });
1365 }
1366
1367 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1368
1369 let track_bounds = axis_pair(
1370 axes.horizontal.then(|| {
1371 Bounds::from_corners(
1372 point(
1373 text_bounds.bottom_left().x,
1374 text_bounds.bottom_left().y - self.style.scrollbar_width,
1375 ),
1376 point(
1377 text_bounds.bottom_right().x
1378 - if axes.vertical {
1379 self.style.scrollbar_width
1380 } else {
1381 px(0.)
1382 },
1383 text_bounds.bottom_right().y,
1384 ),
1385 )
1386 }),
1387 axes.vertical.then(|| {
1388 Bounds::from_corners(
1389 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1390 text_bounds.bottom_right(),
1391 )
1392 }),
1393 );
1394
1395 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1396 let total_text_units = axis_pair(
1397 Some(scroll_range_size.width / letter_size.width),
1398 Some(scroll_range_size.height / letter_size.height),
1399 );
1400
1401 let thumb_size = axis_pair(
1402 total_text_units
1403 .horizontal
1404 .zip(track_bounds.horizontal)
1405 .and_then(|(total_text_units_x, track_bounds_x)| {
1406 if text_units_per_page.horizontal >= total_text_units_x {
1407 return None;
1408 }
1409 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1410 return Some(track_bounds_x.size.width);
1411 }
1412 let thumb_size = track_bounds_x.size.width
1413 * (text_units_per_page.horizontal / total_text_units_x);
1414 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1415 }),
1416 total_text_units.vertical.zip(track_bounds.vertical).map(
1417 |(total_text_units_y, track_bounds_y)| {
1418 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1419 return track_bounds_y.size.height;
1420 }
1421 let thumb_size = track_bounds_y.size.height
1422 * (text_units_per_page.vertical / total_text_units_y);
1423 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1424 },
1425 ),
1426 );
1427
1428 // NOTE: Space not taken by track bounds divided by text units not on screen
1429 let text_unit_size = axis_pair(
1430 thumb_size
1431 .horizontal
1432 .zip(track_bounds.horizontal)
1433 .zip(total_text_units.horizontal)
1434 .map(|((thumb_size, track_bounds), total_text_units)| {
1435 (track_bounds.size.width - thumb_size)
1436 / (total_text_units - text_units_per_page.horizontal).max(0.)
1437 }),
1438 thumb_size
1439 .vertical
1440 .zip(track_bounds.vertical)
1441 .zip(total_text_units.vertical)
1442 .map(|((thumb_size, track_bounds), total_text_units)| {
1443 (track_bounds.size.height - thumb_size)
1444 / (total_text_units - text_units_per_page.vertical).max(0.)
1445 }),
1446 );
1447
1448 let horizontal_scrollbar = track_bounds
1449 .horizontal
1450 .zip(visible_range.horizontal)
1451 .zip(text_unit_size.horizontal)
1452 .zip(thumb_size.horizontal)
1453 .map(
1454 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1455 hitbox: window.insert_hitbox(track_bounds, false),
1456 visible_range,
1457 text_unit_size,
1458 visible: show_scrollbars,
1459 thumb_size,
1460 axis: Axis::Horizontal,
1461 },
1462 );
1463
1464 let vertical_scrollbar = track_bounds
1465 .vertical
1466 .zip(visible_range.vertical)
1467 .zip(text_unit_size.vertical)
1468 .zip(thumb_size.vertical)
1469 .map(
1470 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1471 hitbox: window.insert_hitbox(track_bounds, false),
1472 visible_range,
1473 text_unit_size,
1474 visible: show_scrollbars,
1475 thumb_size,
1476 axis: Axis::Vertical,
1477 },
1478 );
1479
1480 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1481 }
1482
1483 #[allow(clippy::too_many_arguments)]
1484 fn prepaint_crease_toggles(
1485 &self,
1486 crease_toggles: &mut [Option<AnyElement>],
1487 line_height: Pixels,
1488 gutter_dimensions: &GutterDimensions,
1489 gutter_settings: crate::editor_settings::Gutter,
1490 scroll_pixel_position: gpui::Point<Pixels>,
1491 gutter_hitbox: &Hitbox,
1492 window: &mut Window,
1493 cx: &mut App,
1494 ) {
1495 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1496 if let Some(crease_toggle) = crease_toggle {
1497 debug_assert!(gutter_settings.folds);
1498 let available_space = size(
1499 AvailableSpace::MinContent,
1500 AvailableSpace::Definite(line_height * 0.55),
1501 );
1502 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1503
1504 let position = point(
1505 gutter_dimensions.width - gutter_dimensions.right_padding,
1506 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1507 );
1508 let centering_offset = point(
1509 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1510 (line_height - crease_toggle_size.height) / 2.,
1511 );
1512 let origin = gutter_hitbox.origin + position + centering_offset;
1513 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1514 }
1515 }
1516 }
1517
1518 #[allow(clippy::too_many_arguments)]
1519 fn prepaint_crease_trailers(
1520 &self,
1521 trailers: Vec<Option<AnyElement>>,
1522 lines: &[LineWithInvisibles],
1523 line_height: Pixels,
1524 content_origin: gpui::Point<Pixels>,
1525 scroll_pixel_position: gpui::Point<Pixels>,
1526 em_width: Pixels,
1527 window: &mut Window,
1528 cx: &mut App,
1529 ) -> Vec<Option<CreaseTrailerLayout>> {
1530 trailers
1531 .into_iter()
1532 .enumerate()
1533 .map(|(ix, element)| {
1534 let mut element = element?;
1535 let available_space = size(
1536 AvailableSpace::MinContent,
1537 AvailableSpace::Definite(line_height),
1538 );
1539 let size = element.layout_as_root(available_space, window, cx);
1540
1541 let line = &lines[ix];
1542 let padding = if line.width == Pixels::ZERO {
1543 Pixels::ZERO
1544 } else {
1545 4. * em_width
1546 };
1547 let position = point(
1548 scroll_pixel_position.x + line.width + padding,
1549 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1550 );
1551 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1552 let origin = content_origin + position + centering_offset;
1553 element.prepaint_as_root(origin, available_space, window, cx);
1554 Some(CreaseTrailerLayout {
1555 element,
1556 bounds: Bounds::new(origin, size),
1557 })
1558 })
1559 .collect()
1560 }
1561
1562 // Folds contained in a hunk are ignored apart from shrinking visual size
1563 // If a fold contains any hunks then that fold line is marked as modified
1564 fn layout_gutter_diff_hunks(
1565 &self,
1566 line_height: Pixels,
1567 gutter_hitbox: &Hitbox,
1568 display_rows: Range<DisplayRow>,
1569 snapshot: &EditorSnapshot,
1570 window: &mut Window,
1571 cx: &mut App,
1572 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1573 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1574 let mut display_hunks = snapshot
1575 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1576 .map(|hunk| (hunk, None))
1577 .collect::<Vec<_>>();
1578 let git_gutter_setting = ProjectSettings::get_global(cx)
1579 .git
1580 .git_gutter
1581 .unwrap_or_default();
1582 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1583 for (hunk, hitbox) in &mut display_hunks {
1584 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1585 let hunk_bounds =
1586 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1587 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1588 }
1589 }
1590 }
1591
1592 display_hunks
1593 }
1594
1595 #[allow(clippy::too_many_arguments)]
1596 fn layout_inline_diagnostics(
1597 &self,
1598 line_layouts: &[LineWithInvisibles],
1599 crease_trailers: &[Option<CreaseTrailerLayout>],
1600 content_origin: gpui::Point<Pixels>,
1601 scroll_pixel_position: gpui::Point<Pixels>,
1602 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1603 start_row: DisplayRow,
1604 end_row: DisplayRow,
1605 line_height: Pixels,
1606 em_width: Pixels,
1607 style: &EditorStyle,
1608 window: &mut Window,
1609 cx: &mut App,
1610 ) -> HashMap<DisplayRow, AnyElement> {
1611 let max_severity = ProjectSettings::get_global(cx)
1612 .diagnostics
1613 .inline
1614 .max_severity
1615 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1616 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1617 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1618 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1619 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1620 });
1621
1622 let active_diagnostics_group = self
1623 .editor
1624 .read(cx)
1625 .active_diagnostics
1626 .as_ref()
1627 .map(|active_diagnostics| active_diagnostics.group_id);
1628
1629 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1630 let snapshot = editor.snapshot(window, cx);
1631 editor
1632 .inline_diagnostics
1633 .iter()
1634 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1635 .filter(|(_, diagnostic)| match active_diagnostics_group {
1636 Some(active_diagnostics_group) => {
1637 // Active diagnostics are all shown in the editor already, no need to display them inline
1638 diagnostic.group_id != active_diagnostics_group
1639 }
1640 None => true,
1641 })
1642 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1643 .skip_while(|(point, _)| point.row() < start_row)
1644 .take_while(|(point, _)| point.row() < end_row)
1645 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1646 acc.entry(point.row())
1647 .or_insert_with(Vec::new)
1648 .push(diagnostic);
1649 acc
1650 })
1651 });
1652
1653 if diagnostics_by_rows.is_empty() {
1654 return HashMap::default();
1655 }
1656
1657 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1658 &DiagnosticSeverity::ERROR => Color::Error,
1659 &DiagnosticSeverity::WARNING => Color::Warning,
1660 &DiagnosticSeverity::INFORMATION => Color::Info,
1661 &DiagnosticSeverity::HINT => Color::Hint,
1662 _ => Color::Error,
1663 };
1664
1665 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1666 let min_x = ProjectSettings::get_global(cx)
1667 .diagnostics
1668 .inline
1669 .min_column as f32
1670 * em_width;
1671
1672 let mut elements = HashMap::default();
1673 for (row, mut diagnostics) in diagnostics_by_rows {
1674 diagnostics.sort_by_key(|diagnostic| {
1675 (
1676 diagnostic.severity,
1677 std::cmp::Reverse(diagnostic.is_primary),
1678 diagnostic.start.row,
1679 diagnostic.start.column,
1680 )
1681 });
1682
1683 let Some(diagnostic_to_render) = diagnostics
1684 .iter()
1685 .find(|diagnostic| diagnostic.is_primary)
1686 .or_else(|| diagnostics.first())
1687 else {
1688 continue;
1689 };
1690
1691 let pos_y = content_origin.y
1692 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1693
1694 let window_ix = row.minus(start_row) as usize;
1695 let pos_x = {
1696 let crease_trailer_layout = &crease_trailers[window_ix];
1697 let line_layout = &line_layouts[window_ix];
1698
1699 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1700 crease_trailer.bounds.right()
1701 } else {
1702 content_origin.x - scroll_pixel_position.x + line_layout.width
1703 };
1704
1705 let padded_line = line_end + padding;
1706 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1707
1708 cmp::max(padded_line, min_start)
1709 };
1710
1711 let behind_inline_completion_popover = inline_completion_popover_origin
1712 .as_ref()
1713 .map_or(false, |inline_completion_popover_origin| {
1714 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1715 });
1716 let opacity = if behind_inline_completion_popover {
1717 0.5
1718 } else {
1719 1.0
1720 };
1721
1722 let mut element = h_flex()
1723 .id(("diagnostic", row.0))
1724 .h(line_height)
1725 .w_full()
1726 .px_1()
1727 .rounded_xs()
1728 .opacity(opacity)
1729 .bg(severity_to_color(&diagnostic_to_render.severity)
1730 .color(cx)
1731 .opacity(0.05))
1732 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1733 .text_sm()
1734 .font_family(style.text.font().family)
1735 .child(diagnostic_to_render.message.clone())
1736 .into_any();
1737
1738 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1739
1740 elements.insert(row, element);
1741 }
1742
1743 elements
1744 }
1745
1746 #[allow(clippy::too_many_arguments)]
1747 fn layout_inline_blame(
1748 &self,
1749 display_row: DisplayRow,
1750 row_info: &RowInfo,
1751 line_layout: &LineWithInvisibles,
1752 crease_trailer: Option<&CreaseTrailerLayout>,
1753 em_width: Pixels,
1754 content_origin: gpui::Point<Pixels>,
1755 scroll_pixel_position: gpui::Point<Pixels>,
1756 line_height: Pixels,
1757 window: &mut Window,
1758 cx: &mut App,
1759 ) -> Option<AnyElement> {
1760 if !self
1761 .editor
1762 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1763 {
1764 return None;
1765 }
1766
1767 let editor = self.editor.read(cx);
1768 let blame = editor.blame.clone()?;
1769 let padding = {
1770 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1771 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1772
1773 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1774
1775 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1776 match &inline_completion.completion {
1777 InlineCompletion::Edit {
1778 display_mode: EditDisplayMode::TabAccept,
1779 ..
1780 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1781 _ => {}
1782 }
1783 }
1784
1785 padding * em_width
1786 };
1787
1788 let blame_entry = blame
1789 .update(cx, |blame, cx| {
1790 blame.blame_for_rows(&[*row_info], cx).next()
1791 })
1792 .flatten()?;
1793
1794 let mut element =
1795 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1796
1797 let start_y = content_origin.y
1798 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1799
1800 let start_x = {
1801 let line_end = if let Some(crease_trailer) = crease_trailer {
1802 crease_trailer.bounds.right()
1803 } else {
1804 content_origin.x - scroll_pixel_position.x + line_layout.width
1805 };
1806
1807 let padded_line_end = line_end + padding;
1808
1809 let min_column_in_pixels = ProjectSettings::get_global(cx)
1810 .git
1811 .inline_blame
1812 .and_then(|settings| settings.min_column)
1813 .map(|col| self.column_pixels(col as usize, window, cx))
1814 .unwrap_or(px(0.));
1815 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1816
1817 cmp::max(padded_line_end, min_start)
1818 };
1819
1820 let absolute_offset = point(start_x, start_y);
1821 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1822
1823 Some(element)
1824 }
1825
1826 #[allow(clippy::too_many_arguments)]
1827 fn layout_blame_entries(
1828 &self,
1829 buffer_rows: &[RowInfo],
1830 em_width: Pixels,
1831 scroll_position: gpui::Point<f32>,
1832 line_height: Pixels,
1833 gutter_hitbox: &Hitbox,
1834 max_width: Option<Pixels>,
1835 window: &mut Window,
1836 cx: &mut App,
1837 ) -> Option<Vec<AnyElement>> {
1838 if !self
1839 .editor
1840 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1841 {
1842 return None;
1843 }
1844
1845 let blame = self.editor.read(cx).blame.clone()?;
1846 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1847 blame.blame_for_rows(buffer_rows, cx).collect()
1848 });
1849
1850 let width = if let Some(max_width) = max_width {
1851 AvailableSpace::Definite(max_width)
1852 } else {
1853 AvailableSpace::MaxContent
1854 };
1855 let scroll_top = scroll_position.y * line_height;
1856 let start_x = em_width;
1857
1858 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1859
1860 let shaped_lines = blamed_rows
1861 .into_iter()
1862 .enumerate()
1863 .flat_map(|(ix, blame_entry)| {
1864 if let Some(blame_entry) = blame_entry {
1865 let mut element = render_blame_entry(
1866 ix,
1867 &blame,
1868 blame_entry,
1869 &self.style,
1870 &mut last_used_color,
1871 self.editor.clone(),
1872 cx,
1873 );
1874
1875 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1876 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1877
1878 element.prepaint_as_root(
1879 absolute_offset,
1880 size(width, AvailableSpace::MinContent),
1881 window,
1882 cx,
1883 );
1884
1885 Some(element)
1886 } else {
1887 None
1888 }
1889 })
1890 .collect();
1891
1892 Some(shaped_lines)
1893 }
1894
1895 #[allow(clippy::too_many_arguments)]
1896 fn layout_indent_guides(
1897 &self,
1898 content_origin: gpui::Point<Pixels>,
1899 text_origin: gpui::Point<Pixels>,
1900 visible_buffer_range: Range<MultiBufferRow>,
1901 scroll_pixel_position: gpui::Point<Pixels>,
1902 line_height: Pixels,
1903 snapshot: &DisplaySnapshot,
1904 window: &mut Window,
1905 cx: &mut App,
1906 ) -> Option<Vec<IndentGuideLayout>> {
1907 let indent_guides = self.editor.update(cx, |editor, cx| {
1908 editor.indent_guides(visible_buffer_range, snapshot, cx)
1909 })?;
1910
1911 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1912 editor
1913 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1914 .unwrap_or_default()
1915 });
1916
1917 Some(
1918 indent_guides
1919 .into_iter()
1920 .enumerate()
1921 .filter_map(|(i, indent_guide)| {
1922 let single_indent_width =
1923 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1924 let total_width = single_indent_width * indent_guide.depth as f32;
1925 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1926 if start_x >= text_origin.x {
1927 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1928 indent_guide.start_row..indent_guide.end_row,
1929 line_height,
1930 snapshot,
1931 );
1932
1933 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1934
1935 Some(IndentGuideLayout {
1936 origin: point(start_x, start_y),
1937 length,
1938 single_indent_width,
1939 depth: indent_guide.depth,
1940 active: active_indent_guide_indices.contains(&i),
1941 settings: indent_guide.settings,
1942 })
1943 } else {
1944 None
1945 }
1946 })
1947 .collect(),
1948 )
1949 }
1950
1951 fn calculate_indent_guide_bounds(
1952 row_range: Range<MultiBufferRow>,
1953 line_height: Pixels,
1954 snapshot: &DisplaySnapshot,
1955 ) -> (gpui::Pixels, gpui::Pixels) {
1956 let start_point = Point::new(row_range.start.0, 0);
1957 let end_point = Point::new(row_range.end.0, 0);
1958
1959 let row_range = start_point.to_display_point(snapshot).row()
1960 ..end_point.to_display_point(snapshot).row();
1961
1962 let mut prev_line = start_point;
1963 prev_line.row = prev_line.row.saturating_sub(1);
1964 let prev_line = prev_line.to_display_point(snapshot).row();
1965
1966 let mut cons_line = end_point;
1967 cons_line.row += 1;
1968 let cons_line = cons_line.to_display_point(snapshot).row();
1969
1970 let mut offset_y = row_range.start.0 as f32 * line_height;
1971 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1972
1973 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1974 if row_range.end == cons_line {
1975 length += line_height;
1976 }
1977
1978 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1979 // we want to extend the indent guide to the start of the block.
1980 let mut block_height = 0;
1981 let mut block_offset = 0;
1982 let mut found_excerpt_header = false;
1983 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1984 if matches!(block, Block::ExcerptBoundary { .. }) {
1985 found_excerpt_header = true;
1986 break;
1987 }
1988 block_offset += block.height();
1989 block_height += block.height();
1990 }
1991 if !found_excerpt_header {
1992 offset_y -= block_offset as f32 * line_height;
1993 length += block_height as f32 * line_height;
1994 }
1995
1996 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1997 // we want to ensure that the indent guide stops before the excerpt header.
1998 let mut block_height = 0;
1999 let mut found_excerpt_header = false;
2000 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2001 if matches!(block, Block::ExcerptBoundary { .. }) {
2002 found_excerpt_header = true;
2003 }
2004 block_height += block.height();
2005 }
2006 if found_excerpt_header {
2007 length -= block_height as f32 * line_height;
2008 }
2009
2010 (offset_y, length)
2011 }
2012
2013 #[allow(clippy::too_many_arguments)]
2014 fn layout_run_indicators(
2015 &self,
2016 line_height: Pixels,
2017 range: Range<DisplayRow>,
2018 scroll_pixel_position: gpui::Point<Pixels>,
2019 gutter_dimensions: &GutterDimensions,
2020 gutter_hitbox: &Hitbox,
2021 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2022 snapshot: &EditorSnapshot,
2023 window: &mut Window,
2024 cx: &mut App,
2025 ) -> Vec<AnyElement> {
2026 self.editor.update(cx, |editor, cx| {
2027 let active_task_indicator_row =
2028 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2029 deployed_from_indicator,
2030 actions,
2031 ..
2032 })) = editor.context_menu.borrow().as_ref()
2033 {
2034 actions
2035 .tasks
2036 .as_ref()
2037 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2038 .or(*deployed_from_indicator)
2039 } else {
2040 None
2041 };
2042
2043 let offset_range_start =
2044 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2045
2046 let offset_range_end =
2047 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2048
2049 editor
2050 .tasks
2051 .iter()
2052 .filter_map(|(_, tasks)| {
2053 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2054 if multibuffer_point < offset_range_start
2055 || multibuffer_point > offset_range_end
2056 {
2057 return None;
2058 }
2059 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2060 let buffer_folded = snapshot
2061 .buffer_snapshot
2062 .buffer_line_for_row(multibuffer_row)
2063 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2064 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2065 .unwrap_or(false);
2066 if buffer_folded {
2067 return None;
2068 }
2069
2070 if snapshot.is_line_folded(multibuffer_row) {
2071 // Skip folded indicators, unless it's the starting line of a fold.
2072 if multibuffer_row
2073 .0
2074 .checked_sub(1)
2075 .map_or(false, |previous_row| {
2076 snapshot.is_line_folded(MultiBufferRow(previous_row))
2077 })
2078 {
2079 return None;
2080 }
2081 }
2082 let display_row = multibuffer_point.to_display_point(snapshot).row();
2083 let button = editor.render_run_indicator(
2084 &self.style,
2085 Some(display_row) == active_task_indicator_row,
2086 display_row,
2087 cx,
2088 );
2089
2090 let button = prepaint_gutter_button(
2091 button,
2092 display_row,
2093 line_height,
2094 gutter_dimensions,
2095 scroll_pixel_position,
2096 gutter_hitbox,
2097 display_hunks,
2098 window,
2099 cx,
2100 );
2101 Some(button)
2102 })
2103 .collect_vec()
2104 })
2105 }
2106
2107 #[allow(clippy::too_many_arguments)]
2108 fn layout_code_actions_indicator(
2109 &self,
2110 line_height: Pixels,
2111 newest_selection_head: DisplayPoint,
2112 scroll_pixel_position: gpui::Point<Pixels>,
2113 gutter_dimensions: &GutterDimensions,
2114 gutter_hitbox: &Hitbox,
2115 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2116 window: &mut Window,
2117 cx: &mut App,
2118 ) -> Option<AnyElement> {
2119 let mut active = false;
2120 let mut button = None;
2121 let row = newest_selection_head.row();
2122 self.editor.update(cx, |editor, cx| {
2123 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2124 deployed_from_indicator,
2125 ..
2126 })) = editor.context_menu.borrow().as_ref()
2127 {
2128 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2129 };
2130 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2131 });
2132
2133 let button = prepaint_gutter_button(
2134 button?,
2135 row,
2136 line_height,
2137 gutter_dimensions,
2138 scroll_pixel_position,
2139 gutter_hitbox,
2140 display_hunks,
2141 window,
2142 cx,
2143 );
2144
2145 Some(button)
2146 }
2147
2148 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2149 if let Some(index) = participant_index {
2150 cx.theme().players().color_for_participant(index.0)
2151 } else {
2152 cx.theme().players().absent()
2153 }
2154 }
2155
2156 fn calculate_relative_line_numbers(
2157 &self,
2158 snapshot: &EditorSnapshot,
2159 rows: &Range<DisplayRow>,
2160 relative_to: Option<DisplayRow>,
2161 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2162 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2163 let Some(relative_to) = relative_to else {
2164 return relative_rows;
2165 };
2166
2167 let start = rows.start.min(relative_to);
2168 let end = rows.end.max(relative_to);
2169
2170 let buffer_rows = snapshot
2171 .row_infos(start)
2172 .take(1 + end.minus(start) as usize)
2173 .collect::<Vec<_>>();
2174
2175 let head_idx = relative_to.minus(start);
2176 let mut delta = 1;
2177 let mut i = head_idx + 1;
2178 while i < buffer_rows.len() as u32 {
2179 if buffer_rows[i as usize].buffer_row.is_some() {
2180 if rows.contains(&DisplayRow(i + start.0)) {
2181 relative_rows.insert(DisplayRow(i + start.0), delta);
2182 }
2183 delta += 1;
2184 }
2185 i += 1;
2186 }
2187 delta = 1;
2188 i = head_idx.min(buffer_rows.len() as u32 - 1);
2189 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2190 i -= 1;
2191 }
2192
2193 while i > 0 {
2194 i -= 1;
2195 if buffer_rows[i as usize].buffer_row.is_some() {
2196 if rows.contains(&DisplayRow(i + start.0)) {
2197 relative_rows.insert(DisplayRow(i + start.0), delta);
2198 }
2199 delta += 1;
2200 }
2201 }
2202
2203 relative_rows
2204 }
2205
2206 #[allow(clippy::too_many_arguments)]
2207 fn layout_line_numbers(
2208 &self,
2209 gutter_hitbox: Option<&Hitbox>,
2210 gutter_dimensions: GutterDimensions,
2211 line_height: Pixels,
2212 scroll_position: gpui::Point<f32>,
2213 rows: Range<DisplayRow>,
2214 buffer_rows: &[RowInfo],
2215 newest_selection_head: Option<DisplayPoint>,
2216 snapshot: &EditorSnapshot,
2217 window: &mut Window,
2218 cx: &mut App,
2219 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2220 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2221 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2222 });
2223 if !include_line_numbers {
2224 return Arc::default();
2225 }
2226
2227 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2228 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2229 let newest = editor.selections.newest::<Point>(cx);
2230 SelectionLayout::new(
2231 newest,
2232 editor.selections.line_mode,
2233 editor.cursor_shape,
2234 &snapshot.display_snapshot,
2235 true,
2236 true,
2237 None,
2238 )
2239 .head
2240 });
2241 let is_relative = editor.should_use_relative_line_numbers(cx);
2242 (newest_selection_head, is_relative)
2243 });
2244
2245 let relative_to = if is_relative {
2246 Some(newest_selection_head.row())
2247 } else {
2248 None
2249 };
2250 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2251 let mut line_number = String::new();
2252 let line_numbers = buffer_rows
2253 .into_iter()
2254 .enumerate()
2255 .flat_map(|(ix, row_info)| {
2256 let display_row = DisplayRow(rows.start.0 + ix as u32);
2257 line_number.clear();
2258 let non_relative_number = row_info.buffer_row? + 1;
2259 let number = relative_rows
2260 .get(&display_row)
2261 .unwrap_or(&non_relative_number);
2262 write!(&mut line_number, "{number}").unwrap();
2263 if row_info
2264 .diff_status
2265 .is_some_and(|status| status.is_deleted())
2266 {
2267 return None;
2268 }
2269
2270 let color = cx.theme().colors().editor_line_number;
2271 let shaped_line = self
2272 .shape_line_number(SharedString::from(&line_number), color, window)
2273 .log_err()?;
2274 let scroll_top = scroll_position.y * line_height;
2275 let line_origin = gutter_hitbox.map(|hitbox| {
2276 hitbox.origin
2277 + point(
2278 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2279 ix as f32 * line_height - (scroll_top % line_height),
2280 )
2281 });
2282
2283 #[cfg(not(test))]
2284 let hitbox = line_origin.map(|line_origin| {
2285 window.insert_hitbox(
2286 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2287 false,
2288 )
2289 });
2290 #[cfg(test)]
2291 let hitbox = {
2292 let _ = line_origin;
2293 None
2294 };
2295
2296 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2297 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2298 let line_number = LineNumberLayout {
2299 shaped_line,
2300 hitbox,
2301 display_row,
2302 };
2303 Some((multi_buffer_row, line_number))
2304 })
2305 .collect();
2306 Arc::new(line_numbers)
2307 }
2308
2309 fn layout_crease_toggles(
2310 &self,
2311 rows: Range<DisplayRow>,
2312 row_infos: &[RowInfo],
2313 active_rows: &BTreeMap<DisplayRow, bool>,
2314 snapshot: &EditorSnapshot,
2315 window: &mut Window,
2316 cx: &mut App,
2317 ) -> Vec<Option<AnyElement>> {
2318 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2319 && snapshot.mode == EditorMode::Full
2320 && self.editor.read(cx).is_singleton(cx);
2321 if include_fold_statuses {
2322 row_infos
2323 .into_iter()
2324 .enumerate()
2325 .map(|(ix, info)| {
2326 let row = info.multibuffer_row?;
2327 let display_row = DisplayRow(rows.start.0 + ix as u32);
2328 let active = active_rows.contains_key(&display_row);
2329
2330 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2331 })
2332 .collect()
2333 } else {
2334 Vec::new()
2335 }
2336 }
2337
2338 fn layout_crease_trailers(
2339 &self,
2340 buffer_rows: impl IntoIterator<Item = RowInfo>,
2341 snapshot: &EditorSnapshot,
2342 window: &mut Window,
2343 cx: &mut App,
2344 ) -> Vec<Option<AnyElement>> {
2345 buffer_rows
2346 .into_iter()
2347 .map(|row_info| {
2348 if let Some(row) = row_info.multibuffer_row {
2349 snapshot.render_crease_trailer(row, window, cx)
2350 } else {
2351 None
2352 }
2353 })
2354 .collect()
2355 }
2356
2357 fn layout_lines(
2358 rows: Range<DisplayRow>,
2359 snapshot: &EditorSnapshot,
2360 style: &EditorStyle,
2361 editor_width: Pixels,
2362 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2363 window: &mut Window,
2364 cx: &mut App,
2365 ) -> Vec<LineWithInvisibles> {
2366 if rows.start >= rows.end {
2367 return Vec::new();
2368 }
2369
2370 // Show the placeholder when the editor is empty
2371 if snapshot.is_empty() {
2372 let font_size = style.text.font_size.to_pixels(window.rem_size());
2373 let placeholder_color = cx.theme().colors().text_placeholder;
2374 let placeholder_text = snapshot.placeholder_text();
2375
2376 let placeholder_lines = placeholder_text
2377 .as_ref()
2378 .map_or("", AsRef::as_ref)
2379 .split('\n')
2380 .skip(rows.start.0 as usize)
2381 .chain(iter::repeat(""))
2382 .take(rows.len());
2383 placeholder_lines
2384 .filter_map(move |line| {
2385 let run = TextRun {
2386 len: line.len(),
2387 font: style.text.font(),
2388 color: placeholder_color,
2389 background_color: None,
2390 underline: Default::default(),
2391 strikethrough: None,
2392 };
2393 window
2394 .text_system()
2395 .shape_line(line.to_string().into(), font_size, &[run])
2396 .log_err()
2397 })
2398 .map(|line| LineWithInvisibles {
2399 width: line.width,
2400 len: line.len,
2401 fragments: smallvec![LineFragment::Text(line)],
2402 invisibles: Vec::new(),
2403 font_size,
2404 })
2405 .collect()
2406 } else {
2407 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2408 LineWithInvisibles::from_chunks(
2409 chunks,
2410 &style,
2411 MAX_LINE_LEN,
2412 rows.len(),
2413 snapshot.mode,
2414 editor_width,
2415 is_row_soft_wrapped,
2416 window,
2417 cx,
2418 )
2419 }
2420 }
2421
2422 #[allow(clippy::too_many_arguments)]
2423 fn prepaint_lines(
2424 &self,
2425 start_row: DisplayRow,
2426 line_layouts: &mut [LineWithInvisibles],
2427 line_height: Pixels,
2428 scroll_pixel_position: gpui::Point<Pixels>,
2429 content_origin: gpui::Point<Pixels>,
2430 window: &mut Window,
2431 cx: &mut App,
2432 ) -> SmallVec<[AnyElement; 1]> {
2433 let mut line_elements = SmallVec::new();
2434 for (ix, line) in line_layouts.iter_mut().enumerate() {
2435 let row = start_row + DisplayRow(ix as u32);
2436 line.prepaint(
2437 line_height,
2438 scroll_pixel_position,
2439 row,
2440 content_origin,
2441 &mut line_elements,
2442 window,
2443 cx,
2444 );
2445 }
2446 line_elements
2447 }
2448
2449 #[allow(clippy::too_many_arguments)]
2450 fn render_block(
2451 &self,
2452 block: &Block,
2453 available_width: AvailableSpace,
2454 block_id: BlockId,
2455 block_row_start: DisplayRow,
2456 snapshot: &EditorSnapshot,
2457 text_x: Pixels,
2458 rows: &Range<DisplayRow>,
2459 line_layouts: &[LineWithInvisibles],
2460 gutter_dimensions: &GutterDimensions,
2461 line_height: Pixels,
2462 em_width: Pixels,
2463 text_hitbox: &Hitbox,
2464 editor_width: Pixels,
2465 scroll_width: &mut Pixels,
2466 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2467 selections: &[Selection<Point>],
2468 selected_buffer_ids: &Vec<BufferId>,
2469 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2470 sticky_header_excerpt_id: Option<ExcerptId>,
2471 window: &mut Window,
2472 cx: &mut App,
2473 ) -> (AnyElement, Size<Pixels>) {
2474 let mut element = match block {
2475 Block::Custom(block) => {
2476 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2477 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2478 let align_to = block_start.to_display_point(snapshot);
2479 let anchor_x = text_x
2480 + if rows.contains(&align_to.row()) {
2481 line_layouts[align_to.row().minus(rows.start) as usize]
2482 .x_for_index(align_to.column() as usize)
2483 } else {
2484 layout_line(
2485 align_to.row(),
2486 snapshot,
2487 &self.style,
2488 editor_width,
2489 is_row_soft_wrapped,
2490 window,
2491 cx,
2492 )
2493 .x_for_index(align_to.column() as usize)
2494 };
2495
2496 let selected = selections
2497 .binary_search_by(|selection| {
2498 if selection.end <= block_start {
2499 Ordering::Less
2500 } else if selection.start >= block_end {
2501 Ordering::Greater
2502 } else {
2503 Ordering::Equal
2504 }
2505 })
2506 .is_ok();
2507
2508 div()
2509 .size_full()
2510 .child(block.render(&mut BlockContext {
2511 window,
2512 app: cx,
2513 anchor_x,
2514 gutter_dimensions,
2515 line_height,
2516 em_width,
2517 block_id,
2518 selected,
2519 max_width: text_hitbox.size.width.max(*scroll_width),
2520 editor_style: &self.style,
2521 }))
2522 .into_any()
2523 }
2524
2525 Block::FoldedBuffer {
2526 first_excerpt,
2527 prev_excerpt,
2528 show_excerpt_controls,
2529 height,
2530 } => {
2531 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2532 let mut result = v_flex().id(block_id).w_full();
2533
2534 if let Some(prev_excerpt) = prev_excerpt {
2535 if *show_excerpt_controls {
2536 result = result.child(self.render_expand_excerpt_control(
2537 block_id,
2538 ExpandExcerptDirection::Down,
2539 prev_excerpt.id,
2540 gutter_dimensions,
2541 window,
2542 cx,
2543 ));
2544 }
2545 }
2546
2547 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2548 result
2549 .child(self.render_buffer_header(
2550 first_excerpt,
2551 true,
2552 selected,
2553 jump_data,
2554 window,
2555 cx,
2556 ))
2557 .into_any_element()
2558 }
2559
2560 Block::ExcerptBoundary {
2561 prev_excerpt,
2562 next_excerpt,
2563 show_excerpt_controls,
2564 height,
2565 starts_new_buffer,
2566 } => {
2567 let color = cx.theme().colors().clone();
2568 let mut result = v_flex().id(block_id).w_full();
2569
2570 if let Some(prev_excerpt) = prev_excerpt {
2571 if *show_excerpt_controls {
2572 result = result.child(self.render_expand_excerpt_control(
2573 block_id,
2574 ExpandExcerptDirection::Down,
2575 prev_excerpt.id,
2576 gutter_dimensions,
2577 window,
2578 cx,
2579 ));
2580 }
2581 }
2582
2583 if let Some(next_excerpt) = next_excerpt {
2584 let jump_data =
2585 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2586
2587 if *starts_new_buffer {
2588 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2589 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2590
2591 result = result.child(self.render_buffer_header(
2592 next_excerpt,
2593 false,
2594 selected,
2595 jump_data,
2596 window,
2597 cx,
2598 ));
2599 } else {
2600 result = result
2601 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2602 }
2603
2604 if *show_excerpt_controls {
2605 result = result.child(self.render_expand_excerpt_control(
2606 block_id,
2607 ExpandExcerptDirection::Up,
2608 next_excerpt.id,
2609 gutter_dimensions,
2610 window,
2611 cx,
2612 ));
2613 }
2614 } else {
2615 if *show_excerpt_controls {
2616 result = result.child(
2617 h_flex()
2618 .relative()
2619 .child(
2620 div()
2621 .top(px(0.))
2622 .absolute()
2623 .w_full()
2624 .h_px()
2625 .bg(color.border_variant),
2626 )
2627 .child(self.render_expand_excerpt_control(
2628 block_id,
2629 ExpandExcerptDirection::Up,
2630 next_excerpt.id,
2631 gutter_dimensions,
2632 window,
2633 cx,
2634 )),
2635 );
2636 }
2637 };
2638 }
2639
2640 result.into_any()
2641 }
2642 };
2643
2644 // Discover the element's content height, then round up to the nearest multiple of line height.
2645 let preliminary_size = element.layout_as_root(
2646 size(available_width, AvailableSpace::MinContent),
2647 window,
2648 cx,
2649 );
2650 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2651 let final_size = if preliminary_size.height == quantized_height {
2652 preliminary_size
2653 } else {
2654 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2655 };
2656
2657 if let BlockId::Custom(custom_block_id) = block_id {
2658 if block.height() > 0 {
2659 let element_height_in_lines =
2660 ((final_size.height / line_height).ceil() as u32).max(1);
2661 if element_height_in_lines != block.height() {
2662 resized_blocks.insert(custom_block_id, element_height_in_lines);
2663 }
2664 }
2665 }
2666
2667 (element, final_size)
2668 }
2669
2670 fn render_buffer_header(
2671 &self,
2672 for_excerpt: &ExcerptInfo,
2673 is_folded: bool,
2674 is_selected: bool,
2675 jump_data: JumpData,
2676 window: &mut Window,
2677 cx: &mut App,
2678 ) -> Div {
2679 let editor = self.editor.read(cx);
2680 let file_status = editor
2681 .buffer
2682 .read(cx)
2683 .all_diff_hunks_expanded()
2684 .then(|| {
2685 editor
2686 .project
2687 .as_ref()?
2688 .read(cx)
2689 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2690 })
2691 .flatten();
2692
2693 let include_root = editor
2694 .project
2695 .as_ref()
2696 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2697 .unwrap_or_default();
2698 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2699 let filename = path
2700 .as_ref()
2701 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2702 let parent_path = path.as_ref().and_then(|path| {
2703 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2704 });
2705 let focus_handle = editor.focus_handle(cx);
2706 let colors = cx.theme().colors();
2707
2708 div()
2709 .px_2()
2710 .pt_2()
2711 .w_full()
2712 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2713 .child(
2714 h_flex()
2715 .size_full()
2716 .gap_2()
2717 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2718 .pl_0p5()
2719 .pr_5()
2720 .rounded_sm()
2721 .shadow_md()
2722 .border_1()
2723 .map(|div| {
2724 let border_color = if is_selected
2725 && is_folded
2726 && focus_handle.contains_focused(window, cx)
2727 {
2728 colors.border_focused
2729 } else {
2730 colors.border
2731 };
2732 div.border_color(border_color)
2733 })
2734 .bg(colors.editor_subheader_background)
2735 .hover(|style| style.bg(colors.element_hover))
2736 .map(|header| {
2737 let editor = self.editor.clone();
2738 let buffer_id = for_excerpt.buffer_id;
2739 let toggle_chevron_icon =
2740 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2741 header.child(
2742 div()
2743 .hover(|style| style.bg(colors.element_selected))
2744 .rounded_xs()
2745 .child(
2746 ButtonLike::new("toggle-buffer-fold")
2747 .style(ui::ButtonStyle::Transparent)
2748 .size(ButtonSize::Large)
2749 .width(px(30.).into())
2750 .children(toggle_chevron_icon)
2751 .tooltip({
2752 let focus_handle = focus_handle.clone();
2753 move |window, cx| {
2754 Tooltip::for_action_in(
2755 "Toggle Excerpt Fold",
2756 &ToggleFold,
2757 &focus_handle,
2758 window,
2759 cx,
2760 )
2761 }
2762 })
2763 .on_click(move |_, _, cx| {
2764 if is_folded {
2765 editor.update(cx, |editor, cx| {
2766 editor.unfold_buffer(buffer_id, cx);
2767 });
2768 } else {
2769 editor.update(cx, |editor, cx| {
2770 editor.fold_buffer(buffer_id, cx);
2771 });
2772 }
2773 }),
2774 ),
2775 )
2776 })
2777 .children(
2778 editor
2779 .addons
2780 .values()
2781 .filter_map(|addon| {
2782 addon.render_buffer_header_controls(for_excerpt, window, cx)
2783 })
2784 .take(1),
2785 )
2786 .child(
2787 h_flex()
2788 .cursor_pointer()
2789 .id("path header block")
2790 .size_full()
2791 .justify_between()
2792 .child(
2793 h_flex()
2794 .gap_2()
2795 .child(
2796 Label::new(
2797 filename
2798 .map(SharedString::from)
2799 .unwrap_or_else(|| "untitled".into()),
2800 )
2801 .single_line()
2802 .when_some(
2803 file_status,
2804 |el, status| {
2805 el.color(if status.is_conflicted() {
2806 Color::Conflict
2807 } else if status.is_modified() {
2808 Color::Modified
2809 } else if status.is_deleted() {
2810 Color::Disabled
2811 } else {
2812 Color::Created
2813 })
2814 .when(status.is_deleted(), |el| el.strikethrough())
2815 },
2816 ),
2817 )
2818 .when_some(parent_path, |then, path| {
2819 then.child(div().child(path).text_color(
2820 if file_status.is_some_and(FileStatus::is_deleted) {
2821 colors.text_disabled
2822 } else {
2823 colors.text_muted
2824 },
2825 ))
2826 }),
2827 )
2828 .when(is_selected, |el| {
2829 el.child(
2830 h_flex()
2831 .id("jump-to-file-button")
2832 .gap_2p5()
2833 .child(Label::new("Jump To File"))
2834 .children(
2835 KeyBinding::for_action_in(
2836 &OpenExcerpts,
2837 &focus_handle,
2838 window,
2839 cx,
2840 )
2841 .map(|binding| binding.into_any_element()),
2842 ),
2843 )
2844 })
2845 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2846 .on_click(window.listener_for(&self.editor, {
2847 move |editor, e: &ClickEvent, window, cx| {
2848 editor.open_excerpts_common(
2849 Some(jump_data.clone()),
2850 e.down.modifiers.secondary(),
2851 window,
2852 cx,
2853 );
2854 }
2855 })),
2856 ),
2857 )
2858 }
2859
2860 fn render_expand_excerpt_control(
2861 &self,
2862 block_id: BlockId,
2863 direction: ExpandExcerptDirection,
2864 excerpt_id: ExcerptId,
2865 gutter_dimensions: &GutterDimensions,
2866 window: &Window,
2867 cx: &mut App,
2868 ) -> impl IntoElement {
2869 let color = cx.theme().colors().clone();
2870 let hover_color = color.border_variant.opacity(0.5);
2871 let focus_handle = self.editor.focus_handle(cx).clone();
2872
2873 let icon_offset =
2874 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2875 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2876 let group_name = if direction == ExpandExcerptDirection::Down {
2877 "expand-down"
2878 } else {
2879 "expand-up"
2880 };
2881
2882 let expand_area = |id: SharedString| {
2883 h_flex()
2884 .id(id)
2885 .w_full()
2886 .cursor_pointer()
2887 .block_mouse_down()
2888 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2889 .hover(|style| style.bg(hover_color))
2890 .tooltip({
2891 let focus_handle = focus_handle.clone();
2892 move |window, cx| {
2893 Tooltip::for_action_in(
2894 "Expand Excerpt",
2895 &ExpandExcerpts { lines: 0 },
2896 &focus_handle,
2897 window,
2898 cx,
2899 )
2900 }
2901 })
2902 };
2903
2904 expand_area(
2905 format!(
2906 "block-{}-{}",
2907 block_id,
2908 if direction == ExpandExcerptDirection::Down {
2909 "down"
2910 } else {
2911 "up"
2912 }
2913 )
2914 .into(),
2915 )
2916 .group(group_name)
2917 .child(
2918 h_flex()
2919 .w(icon_offset)
2920 .h(header_height)
2921 .flex_none()
2922 .justify_end()
2923 .child(
2924 ButtonLike::new("expand-icon")
2925 .style(ButtonStyle::Transparent)
2926 .child(
2927 svg()
2928 .path(if direction == ExpandExcerptDirection::Down {
2929 IconName::ArrowDownFromLine.path()
2930 } else {
2931 IconName::ArrowUpFromLine.path()
2932 })
2933 .size(IconSize::XSmall.rems())
2934 .text_color(cx.theme().colors().editor_line_number)
2935 .group_hover(group_name, |style| {
2936 style.text_color(cx.theme().colors().editor_active_line_number)
2937 }),
2938 ),
2939 ),
2940 )
2941 .on_click(window.listener_for(&self.editor, {
2942 move |editor, _, _, cx| {
2943 editor.expand_excerpt(excerpt_id, direction, cx);
2944 cx.stop_propagation();
2945 }
2946 }))
2947 }
2948
2949 #[allow(clippy::too_many_arguments)]
2950 fn render_blocks(
2951 &self,
2952 rows: Range<DisplayRow>,
2953 snapshot: &EditorSnapshot,
2954 hitbox: &Hitbox,
2955 text_hitbox: &Hitbox,
2956 editor_width: Pixels,
2957 scroll_width: &mut Pixels,
2958 gutter_dimensions: &GutterDimensions,
2959 em_width: Pixels,
2960 text_x: Pixels,
2961 line_height: Pixels,
2962 line_layouts: &[LineWithInvisibles],
2963 selections: &[Selection<Point>],
2964 selected_buffer_ids: &Vec<BufferId>,
2965 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2966 sticky_header_excerpt_id: Option<ExcerptId>,
2967 window: &mut Window,
2968 cx: &mut App,
2969 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2970 let (fixed_blocks, non_fixed_blocks) = snapshot
2971 .blocks_in_range(rows.clone())
2972 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2973
2974 let mut focused_block = self
2975 .editor
2976 .update(cx, |editor, _| editor.take_focused_block());
2977 let mut fixed_block_max_width = Pixels::ZERO;
2978 let mut blocks = Vec::new();
2979 let mut resized_blocks = HashMap::default();
2980
2981 for (row, block) in fixed_blocks {
2982 let block_id = block.id();
2983
2984 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2985 focused_block = None;
2986 }
2987
2988 let (element, element_size) = self.render_block(
2989 block,
2990 AvailableSpace::MinContent,
2991 block_id,
2992 row,
2993 snapshot,
2994 text_x,
2995 &rows,
2996 line_layouts,
2997 gutter_dimensions,
2998 line_height,
2999 em_width,
3000 text_hitbox,
3001 editor_width,
3002 scroll_width,
3003 &mut resized_blocks,
3004 selections,
3005 selected_buffer_ids,
3006 is_row_soft_wrapped,
3007 sticky_header_excerpt_id,
3008 window,
3009 cx,
3010 );
3011 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3012 blocks.push(BlockLayout {
3013 id: block_id,
3014 row: Some(row),
3015 element,
3016 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3017 style: BlockStyle::Fixed,
3018 });
3019 }
3020
3021 for (row, block) in non_fixed_blocks {
3022 let style = block.style();
3023 let width = match style {
3024 BlockStyle::Sticky => hitbox.size.width,
3025 BlockStyle::Flex => hitbox
3026 .size
3027 .width
3028 .max(fixed_block_max_width)
3029 .max(gutter_dimensions.width + *scroll_width),
3030 BlockStyle::Fixed => unreachable!(),
3031 };
3032 let block_id = block.id();
3033
3034 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3035 focused_block = None;
3036 }
3037
3038 let (element, element_size) = self.render_block(
3039 block,
3040 width.into(),
3041 block_id,
3042 row,
3043 snapshot,
3044 text_x,
3045 &rows,
3046 line_layouts,
3047 gutter_dimensions,
3048 line_height,
3049 em_width,
3050 text_hitbox,
3051 editor_width,
3052 scroll_width,
3053 &mut resized_blocks,
3054 selections,
3055 selected_buffer_ids,
3056 is_row_soft_wrapped,
3057 sticky_header_excerpt_id,
3058 window,
3059 cx,
3060 );
3061
3062 blocks.push(BlockLayout {
3063 id: block_id,
3064 row: Some(row),
3065 element,
3066 available_space: size(width.into(), element_size.height.into()),
3067 style,
3068 });
3069 }
3070
3071 if let Some(focused_block) = focused_block {
3072 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3073 if focus_handle.is_focused(window) {
3074 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3075 let style = block.style();
3076 let width = match style {
3077 BlockStyle::Fixed => AvailableSpace::MinContent,
3078 BlockStyle::Flex => AvailableSpace::Definite(
3079 hitbox
3080 .size
3081 .width
3082 .max(fixed_block_max_width)
3083 .max(gutter_dimensions.width + *scroll_width),
3084 ),
3085 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3086 };
3087
3088 let (element, element_size) = self.render_block(
3089 &block,
3090 width,
3091 focused_block.id,
3092 rows.end,
3093 snapshot,
3094 text_x,
3095 &rows,
3096 line_layouts,
3097 gutter_dimensions,
3098 line_height,
3099 em_width,
3100 text_hitbox,
3101 editor_width,
3102 scroll_width,
3103 &mut resized_blocks,
3104 selections,
3105 selected_buffer_ids,
3106 is_row_soft_wrapped,
3107 sticky_header_excerpt_id,
3108 window,
3109 cx,
3110 );
3111
3112 blocks.push(BlockLayout {
3113 id: block.id(),
3114 row: None,
3115 element,
3116 available_space: size(width, element_size.height.into()),
3117 style,
3118 });
3119 }
3120 }
3121 }
3122 }
3123
3124 if resized_blocks.is_empty() {
3125 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3126 Ok(blocks)
3127 } else {
3128 Err(resized_blocks)
3129 }
3130 }
3131
3132 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3133 /// a restart of rendering for the editor based on the new sizes.
3134 #[allow(clippy::too_many_arguments)]
3135 fn layout_blocks(
3136 &self,
3137 blocks: &mut Vec<BlockLayout>,
3138 block_starts: &mut HashSet<DisplayRow>,
3139 hitbox: &Hitbox,
3140 line_height: Pixels,
3141 scroll_pixel_position: gpui::Point<Pixels>,
3142 window: &mut Window,
3143 cx: &mut App,
3144 ) {
3145 for block in blocks {
3146 let mut origin = if let Some(row) = block.row {
3147 block_starts.insert(row);
3148 hitbox.origin
3149 + point(
3150 Pixels::ZERO,
3151 row.as_f32() * line_height - scroll_pixel_position.y,
3152 )
3153 } else {
3154 // Position the block outside the visible area
3155 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3156 };
3157
3158 if !matches!(block.style, BlockStyle::Sticky) {
3159 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3160 }
3161
3162 let focus_handle =
3163 block
3164 .element
3165 .prepaint_as_root(origin, block.available_space, window, cx);
3166
3167 if let Some(focus_handle) = focus_handle {
3168 self.editor.update(cx, |editor, _cx| {
3169 editor.set_focused_block(FocusedBlock {
3170 id: block.id,
3171 focus_handle: focus_handle.downgrade(),
3172 });
3173 });
3174 }
3175 }
3176 }
3177
3178 #[allow(clippy::too_many_arguments)]
3179 fn layout_sticky_buffer_header(
3180 &self,
3181 StickyHeaderExcerpt {
3182 excerpt,
3183 next_excerpt_controls_present,
3184 next_buffer_row,
3185 }: StickyHeaderExcerpt<'_>,
3186 scroll_position: f32,
3187 line_height: Pixels,
3188 snapshot: &EditorSnapshot,
3189 hitbox: &Hitbox,
3190 selected_buffer_ids: &Vec<BufferId>,
3191 window: &mut Window,
3192 cx: &mut App,
3193 ) -> AnyElement {
3194 let jump_data = header_jump_data(
3195 snapshot,
3196 DisplayRow(scroll_position as u32),
3197 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3198 excerpt,
3199 );
3200
3201 let editor_bg_color = cx.theme().colors().editor_background;
3202
3203 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3204
3205 let mut header = v_flex()
3206 .relative()
3207 .child(
3208 div()
3209 .w(hitbox.bounds.size.width)
3210 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3211 .bg(linear_gradient(
3212 0.,
3213 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3214 linear_color_stop(editor_bg_color, 0.6),
3215 ))
3216 .absolute()
3217 .top_0(),
3218 )
3219 .child(
3220 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3221 .into_any_element(),
3222 )
3223 .into_any_element();
3224
3225 let mut origin = hitbox.origin;
3226
3227 if let Some(next_buffer_row) = next_buffer_row {
3228 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3229
3230 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3231
3232 if next_excerpt_controls_present {
3233 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3234 }
3235
3236 let offset = scroll_position - max_row as f32;
3237
3238 if offset > 0.0 {
3239 origin.y -= Pixels(offset) * line_height;
3240 }
3241 }
3242
3243 let size = size(
3244 AvailableSpace::Definite(hitbox.size.width),
3245 AvailableSpace::MinContent,
3246 );
3247
3248 header.prepaint_as_root(origin, size, window, cx);
3249
3250 header
3251 }
3252
3253 #[allow(clippy::too_many_arguments)]
3254 fn layout_cursor_popovers(
3255 &self,
3256 line_height: Pixels,
3257 text_hitbox: &Hitbox,
3258 content_origin: gpui::Point<Pixels>,
3259 start_row: DisplayRow,
3260 scroll_pixel_position: gpui::Point<Pixels>,
3261 line_layouts: &[LineWithInvisibles],
3262 cursor: DisplayPoint,
3263 cursor_point: Point,
3264 style: &EditorStyle,
3265 window: &mut Window,
3266 cx: &mut App,
3267 ) {
3268 let mut min_menu_height = Pixels::ZERO;
3269 let mut max_menu_height = Pixels::ZERO;
3270 let mut height_above_menu = Pixels::ZERO;
3271 let height_below_menu = Pixels::ZERO;
3272 let mut edit_prediction_popover_visible = false;
3273 let mut context_menu_visible = false;
3274
3275 {
3276 let editor = self.editor.read(cx);
3277 if editor
3278 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3279 {
3280 height_above_menu +=
3281 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3282 edit_prediction_popover_visible = true;
3283 }
3284
3285 if editor.context_menu_visible() {
3286 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3287 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3288 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3289 context_menu_visible = true;
3290 }
3291 }
3292 }
3293
3294 let visible = edit_prediction_popover_visible || context_menu_visible;
3295 if !visible {
3296 return;
3297 }
3298
3299 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3300 let target_position = content_origin
3301 + gpui::Point {
3302 x: cmp::max(
3303 px(0.),
3304 cursor_row_layout.x_for_index(cursor.column() as usize)
3305 - scroll_pixel_position.x,
3306 ),
3307 y: cmp::max(
3308 px(0.),
3309 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3310 ),
3311 };
3312
3313 let viewport_bounds =
3314 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3315 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3316 ..Default::default()
3317 });
3318
3319 let min_height = height_above_menu + min_menu_height + height_below_menu;
3320 let max_height = height_above_menu + max_menu_height + height_below_menu;
3321 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3322 target_position,
3323 line_height,
3324 min_height,
3325 max_height,
3326 text_hitbox,
3327 viewport_bounds,
3328 window,
3329 cx,
3330 |height, max_width_for_stable_x, y_flipped, window, cx| {
3331 // First layout the menu to get its size - others can be at least this wide.
3332 let context_menu = if context_menu_visible {
3333 let menu_height = if y_flipped {
3334 height - height_below_menu
3335 } else {
3336 height - height_above_menu
3337 };
3338 let mut element = self
3339 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3340 .expect("Visible context menu should always render.");
3341 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3342 Some((CursorPopoverType::CodeContextMenu, element, size))
3343 } else {
3344 None
3345 };
3346 let min_width = context_menu
3347 .as_ref()
3348 .map_or(px(0.), |(_, _, size)| size.width);
3349 let max_width = max_width_for_stable_x.max(
3350 context_menu
3351 .as_ref()
3352 .map_or(px(0.), |(_, _, size)| size.width),
3353 );
3354
3355 let edit_prediction = if edit_prediction_popover_visible {
3356 self.editor.update(cx, move |editor, cx| {
3357 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3358 let mut element = editor.render_edit_prediction_cursor_popover(
3359 min_width,
3360 max_width,
3361 cursor_point,
3362 style,
3363 accept_binding.keystroke(),
3364 window,
3365 cx,
3366 )?;
3367 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3368 Some((CursorPopoverType::EditPrediction, element, size))
3369 })
3370 } else {
3371 None
3372 };
3373 vec![edit_prediction, context_menu]
3374 .into_iter()
3375 .flatten()
3376 .collect::<Vec<_>>()
3377 },
3378 ) else {
3379 return;
3380 };
3381
3382 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3383 .iter()
3384 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3385 else {
3386 return;
3387 };
3388 let last_ix = laid_out_popovers.len() - 1;
3389 let menu_is_last = menu_ix == last_ix;
3390 let first_popover_bounds = laid_out_popovers[0].1;
3391 let last_popover_bounds = laid_out_popovers[last_ix].1;
3392
3393 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3394 // right, and otherwise it goes below or to the right.
3395 let mut target_bounds = Bounds::from_corners(
3396 first_popover_bounds.origin,
3397 last_popover_bounds.bottom_right(),
3398 );
3399 target_bounds.size.width = menu_bounds.size.width;
3400
3401 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3402 // based on this is preferred for layout stability.
3403 let mut max_target_bounds = target_bounds;
3404 max_target_bounds.size.height = max_height;
3405 if y_flipped {
3406 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3407 }
3408
3409 // Add spacing around `target_bounds` and `max_target_bounds`.
3410 let mut extend_amount = Edges::all(MENU_GAP);
3411 if y_flipped {
3412 extend_amount.bottom = line_height;
3413 } else {
3414 extend_amount.top = line_height;
3415 }
3416 let target_bounds = target_bounds.extend(extend_amount);
3417 let max_target_bounds = max_target_bounds.extend(extend_amount);
3418
3419 let must_place_above_or_below =
3420 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3421 laid_out_popovers[menu_ix + 1..]
3422 .iter()
3423 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3424 } else {
3425 false
3426 };
3427
3428 self.layout_context_menu_aside(
3429 y_flipped,
3430 *menu_bounds,
3431 target_bounds,
3432 max_target_bounds,
3433 max_menu_height,
3434 must_place_above_or_below,
3435 text_hitbox,
3436 viewport_bounds,
3437 window,
3438 cx,
3439 );
3440 }
3441
3442 #[allow(clippy::too_many_arguments)]
3443 fn layout_gutter_menu(
3444 &self,
3445 line_height: Pixels,
3446 text_hitbox: &Hitbox,
3447 content_origin: gpui::Point<Pixels>,
3448 scroll_pixel_position: gpui::Point<Pixels>,
3449 gutter_overshoot: Pixels,
3450 window: &mut Window,
3451 cx: &mut App,
3452 ) {
3453 let editor = self.editor.read(cx);
3454 if !editor.context_menu_visible() {
3455 return;
3456 }
3457 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3458 editor.context_menu_origin()
3459 else {
3460 return;
3461 };
3462 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3463 // indicator than just a plain first column of the text field.
3464 let target_position = content_origin
3465 + gpui::Point {
3466 x: -gutter_overshoot,
3467 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3468 };
3469 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3470 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3471 let viewport_bounds =
3472 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3473 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3474 ..Default::default()
3475 });
3476 self.layout_popovers_above_or_below_line(
3477 target_position,
3478 line_height,
3479 min_height,
3480 max_height,
3481 text_hitbox,
3482 viewport_bounds,
3483 window,
3484 cx,
3485 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3486 let mut element = self
3487 .render_context_menu(line_height, height, y_flipped, window, cx)
3488 .expect("Visible context menu should always render.");
3489 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3490 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3491 },
3492 );
3493 }
3494
3495 #[allow(clippy::too_many_arguments)]
3496 fn layout_popovers_above_or_below_line(
3497 &self,
3498 target_position: gpui::Point<Pixels>,
3499 line_height: Pixels,
3500 min_height: Pixels,
3501 max_height: Pixels,
3502 text_hitbox: &Hitbox,
3503 viewport_bounds: Bounds<Pixels>,
3504 window: &mut Window,
3505 cx: &mut App,
3506 make_sized_popovers: impl FnOnce(
3507 Pixels,
3508 Pixels,
3509 bool,
3510 &mut Window,
3511 &mut App,
3512 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3513 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3514 let text_style = TextStyleRefinement {
3515 line_height: Some(DefiniteLength::Fraction(
3516 BufferLineHeight::Comfortable.value(),
3517 )),
3518 ..Default::default()
3519 };
3520 window.with_text_style(Some(text_style), |window| {
3521 // If the max height won't fit below and there is more space above, put it above the line.
3522 let bottom_y_when_flipped = target_position.y - line_height;
3523 let available_above = bottom_y_when_flipped - text_hitbox.top();
3524 let available_below = text_hitbox.bottom() - target_position.y;
3525 let y_overflows_below = max_height > available_below;
3526 let mut y_flipped = y_overflows_below && available_above > available_below;
3527 let mut height = cmp::min(
3528 max_height,
3529 if y_flipped {
3530 available_above
3531 } else {
3532 available_below
3533 },
3534 );
3535
3536 // If the min height doesn't fit within text bounds, instead fit within the window.
3537 if height < min_height {
3538 let available_above = bottom_y_when_flipped;
3539 let available_below = viewport_bounds.bottom() - target_position.y;
3540 if available_below > min_height {
3541 y_flipped = false;
3542 height = min_height;
3543 } else if available_above > min_height {
3544 y_flipped = true;
3545 height = min_height;
3546 } else if available_above > available_below {
3547 y_flipped = true;
3548 height = available_above;
3549 } else {
3550 y_flipped = false;
3551 height = available_below;
3552 }
3553 }
3554
3555 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3556
3557 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3558 // for very narrow windows.
3559 let popovers =
3560 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3561 if popovers.is_empty() {
3562 return None;
3563 }
3564
3565 let max_width = popovers
3566 .iter()
3567 .map(|(_, _, size)| size.width)
3568 .max()
3569 .unwrap_or_default();
3570
3571 let mut current_position = gpui::Point {
3572 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3573 // overflow. Include space for the scrollbar.
3574 x: target_position
3575 .x
3576 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3577 y: if y_flipped {
3578 bottom_y_when_flipped
3579 } else {
3580 target_position.y
3581 },
3582 };
3583
3584 let mut laid_out_popovers = popovers
3585 .into_iter()
3586 .map(|(popover_type, element, size)| {
3587 if y_flipped {
3588 current_position.y -= size.height;
3589 }
3590 let position = current_position;
3591 window.defer_draw(element, current_position, 1);
3592 if !y_flipped {
3593 current_position.y += size.height + MENU_GAP;
3594 } else {
3595 current_position.y -= MENU_GAP;
3596 }
3597 (popover_type, Bounds::new(position, size))
3598 })
3599 .collect::<Vec<_>>();
3600
3601 if y_flipped {
3602 laid_out_popovers.reverse();
3603 }
3604
3605 Some((laid_out_popovers, y_flipped))
3606 })
3607 }
3608
3609 #[allow(clippy::too_many_arguments)]
3610 fn layout_context_menu_aside(
3611 &self,
3612 y_flipped: bool,
3613 menu_bounds: Bounds<Pixels>,
3614 target_bounds: Bounds<Pixels>,
3615 max_target_bounds: Bounds<Pixels>,
3616 max_height: Pixels,
3617 must_place_above_or_below: bool,
3618 text_hitbox: &Hitbox,
3619 viewport_bounds: Bounds<Pixels>,
3620 window: &mut Window,
3621 cx: &mut App,
3622 ) {
3623 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3624 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3625 && !must_place_above_or_below
3626 {
3627 let max_width = cmp::min(
3628 available_within_viewport.right - px(1.),
3629 MENU_ASIDE_MAX_WIDTH,
3630 );
3631 let Some(mut aside) = self.render_context_menu_aside(
3632 size(max_width, max_height - POPOVER_Y_PADDING),
3633 window,
3634 cx,
3635 ) else {
3636 return;
3637 };
3638 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3639 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3640 Some((aside, right_position))
3641 } else {
3642 let max_size = size(
3643 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3644 // won't be needed here.
3645 cmp::min(
3646 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3647 viewport_bounds.right(),
3648 ),
3649 cmp::min(
3650 max_height,
3651 cmp::max(
3652 available_within_viewport.top,
3653 available_within_viewport.bottom,
3654 ),
3655 ) - POPOVER_Y_PADDING,
3656 );
3657 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3658 return;
3659 };
3660 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3661
3662 let top_position = point(
3663 menu_bounds.origin.x,
3664 target_bounds.top() - actual_size.height,
3665 );
3666 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3667
3668 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3669 // Prefer to fit on the same side of the line as the menu, then on the other side of
3670 // the line.
3671 if !y_flipped && wanted.height < available.bottom {
3672 Some(bottom_position)
3673 } else if !y_flipped && wanted.height < available.top {
3674 Some(top_position)
3675 } else if y_flipped && wanted.height < available.top {
3676 Some(top_position)
3677 } else if y_flipped && wanted.height < available.bottom {
3678 Some(bottom_position)
3679 } else {
3680 None
3681 }
3682 };
3683
3684 // Prefer choosing a direction using max sizes rather than actual size for stability.
3685 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3686 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3687 let aside_position = fit_within(available_within_text, wanted)
3688 // Fallback: fit max size in window.
3689 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3690 // Fallback: fit actual size in window.
3691 .or_else(|| fit_within(available_within_viewport, actual_size));
3692
3693 aside_position.map(|position| (aside, position))
3694 };
3695
3696 // Skip drawing if it doesn't fit anywhere.
3697 if let Some((aside, position)) = positioned_aside {
3698 window.defer_draw(aside, position, 2);
3699 }
3700 }
3701
3702 fn render_context_menu(
3703 &self,
3704 line_height: Pixels,
3705 height: Pixels,
3706 y_flipped: bool,
3707 window: &mut Window,
3708 cx: &mut App,
3709 ) -> Option<AnyElement> {
3710 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3711 self.editor.update(cx, |editor, cx| {
3712 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3713 })
3714 }
3715
3716 fn render_context_menu_aside(
3717 &self,
3718 max_size: Size<Pixels>,
3719 window: &mut Window,
3720 cx: &mut App,
3721 ) -> Option<AnyElement> {
3722 if max_size.width < px(100.) || max_size.height < px(12.) {
3723 None
3724 } else {
3725 self.editor.update(cx, |editor, cx| {
3726 editor.render_context_menu_aside(max_size, window, cx)
3727 })
3728 }
3729 }
3730
3731 fn layout_mouse_context_menu(
3732 &self,
3733 editor_snapshot: &EditorSnapshot,
3734 visible_range: Range<DisplayRow>,
3735 content_origin: gpui::Point<Pixels>,
3736 window: &mut Window,
3737 cx: &mut App,
3738 ) -> Option<AnyElement> {
3739 let position = self.editor.update(cx, |editor, _cx| {
3740 let visible_start_point = editor.display_to_pixel_point(
3741 DisplayPoint::new(visible_range.start, 0),
3742 editor_snapshot,
3743 window,
3744 )?;
3745 let visible_end_point = editor.display_to_pixel_point(
3746 DisplayPoint::new(visible_range.end, 0),
3747 editor_snapshot,
3748 window,
3749 )?;
3750
3751 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3752 let (source_display_point, position) = match mouse_context_menu.position {
3753 MenuPosition::PinnedToScreen(point) => (None, point),
3754 MenuPosition::PinnedToEditor { source, offset } => {
3755 let source_display_point = source.to_display_point(editor_snapshot);
3756 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3757 let position = content_origin + source_point + offset;
3758 (Some(source_display_point), position)
3759 }
3760 };
3761
3762 let source_included = source_display_point.map_or(true, |source_display_point| {
3763 visible_range
3764 .to_inclusive()
3765 .contains(&source_display_point.row())
3766 });
3767 let position_included =
3768 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3769 if !source_included && !position_included {
3770 None
3771 } else {
3772 Some(position)
3773 }
3774 })?;
3775
3776 let text_style = TextStyleRefinement {
3777 line_height: Some(DefiniteLength::Fraction(
3778 BufferLineHeight::Comfortable.value(),
3779 )),
3780 ..Default::default()
3781 };
3782 window.with_text_style(Some(text_style), |window| {
3783 let mut element = self.editor.update(cx, |editor, _| {
3784 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3785 let context_menu = mouse_context_menu.context_menu.clone();
3786
3787 Some(
3788 deferred(
3789 anchored()
3790 .position(position)
3791 .child(context_menu)
3792 .anchor(Corner::TopLeft)
3793 .snap_to_window_with_margin(px(8.)),
3794 )
3795 .with_priority(1)
3796 .into_any(),
3797 )
3798 })?;
3799
3800 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3801 Some(element)
3802 })
3803 }
3804
3805 #[allow(clippy::too_many_arguments)]
3806 fn layout_hover_popovers(
3807 &self,
3808 snapshot: &EditorSnapshot,
3809 hitbox: &Hitbox,
3810 text_hitbox: &Hitbox,
3811 visible_display_row_range: Range<DisplayRow>,
3812 content_origin: gpui::Point<Pixels>,
3813 scroll_pixel_position: gpui::Point<Pixels>,
3814 line_layouts: &[LineWithInvisibles],
3815 line_height: Pixels,
3816 em_width: Pixels,
3817 window: &mut Window,
3818 cx: &mut App,
3819 ) {
3820 struct MeasuredHoverPopover {
3821 element: AnyElement,
3822 size: Size<Pixels>,
3823 horizontal_offset: Pixels,
3824 }
3825
3826 let max_size = size(
3827 (120. * em_width) // Default size
3828 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3829 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3830 (16. * line_height) // Default size
3831 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3832 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3833 );
3834
3835 let hover_popovers = self.editor.update(cx, |editor, cx| {
3836 editor
3837 .hover_state
3838 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3839 });
3840 let Some((position, hover_popovers)) = hover_popovers else {
3841 return;
3842 };
3843
3844 // This is safe because we check on layout whether the required row is available
3845 let hovered_row_layout =
3846 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3847
3848 // Compute Hovered Point
3849 let x =
3850 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3851 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3852 let hovered_point = content_origin + point(x, y);
3853
3854 let mut overall_height = Pixels::ZERO;
3855 let mut measured_hover_popovers = Vec::new();
3856 for mut hover_popover in hover_popovers {
3857 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3858 let horizontal_offset =
3859 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3860
3861 overall_height += HOVER_POPOVER_GAP + size.height;
3862
3863 measured_hover_popovers.push(MeasuredHoverPopover {
3864 element: hover_popover,
3865 size,
3866 horizontal_offset,
3867 });
3868 }
3869 overall_height += HOVER_POPOVER_GAP;
3870
3871 fn draw_occluder(
3872 width: Pixels,
3873 origin: gpui::Point<Pixels>,
3874 window: &mut Window,
3875 cx: &mut App,
3876 ) {
3877 let mut occlusion = div()
3878 .size_full()
3879 .occlude()
3880 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3881 .into_any_element();
3882 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3883 window.defer_draw(occlusion, origin, 2);
3884 }
3885
3886 if hovered_point.y > overall_height {
3887 // There is enough space above. Render popovers above the hovered point
3888 let mut current_y = hovered_point.y;
3889 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3890 let size = popover.size;
3891 let popover_origin = point(
3892 hovered_point.x + popover.horizontal_offset,
3893 current_y - size.height,
3894 );
3895
3896 window.defer_draw(popover.element, popover_origin, 2);
3897 if position != itertools::Position::Last {
3898 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3899 draw_occluder(size.width, origin, window, cx);
3900 }
3901
3902 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3903 }
3904 } else {
3905 // There is not enough space above. Render popovers below the hovered point
3906 let mut current_y = hovered_point.y + line_height;
3907 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3908 let size = popover.size;
3909 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3910
3911 window.defer_draw(popover.element, popover_origin, 2);
3912 if position != itertools::Position::Last {
3913 let origin = point(popover_origin.x, popover_origin.y + size.height);
3914 draw_occluder(size.width, origin, window, cx);
3915 }
3916
3917 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3918 }
3919 }
3920 }
3921
3922 #[allow(clippy::too_many_arguments)]
3923 fn layout_diff_hunk_controls(
3924 &self,
3925 row_range: Range<DisplayRow>,
3926 row_infos: &[RowInfo],
3927 text_hitbox: &Hitbox,
3928 position_map: &PositionMap,
3929 newest_cursor_position: Option<DisplayPoint>,
3930 line_height: Pixels,
3931 scroll_pixel_position: gpui::Point<Pixels>,
3932 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3933 editor: Entity<Editor>,
3934 window: &mut Window,
3935 cx: &mut App,
3936 ) -> Vec<AnyElement> {
3937 let point_for_position = position_map.point_for_position(window.mouse_position());
3938
3939 let mut controls = vec![];
3940
3941 let active_positions = [
3942 Some(point_for_position.previous_valid),
3943 newest_cursor_position,
3944 ];
3945
3946 for (hunk, _) in display_hunks {
3947 if let DisplayDiffHunk::Unfolded {
3948 display_row_range,
3949 multi_buffer_range,
3950 status,
3951 ..
3952 } = &hunk
3953 {
3954 if display_row_range.start < row_range.start
3955 || display_row_range.start >= row_range.end
3956 {
3957 continue;
3958 }
3959 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3960 if row_infos[row_ix].diff_status.is_none() {
3961 continue;
3962 }
3963 if row_infos[row_ix]
3964 .diff_status
3965 .is_some_and(|status| status.is_added())
3966 && !status.is_added()
3967 {
3968 continue;
3969 }
3970 if active_positions
3971 .iter()
3972 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3973 {
3974 let y = display_row_range.start.as_f32() * line_height
3975 + text_hitbox.bounds.top()
3976 - scroll_pixel_position.y;
3977
3978 let mut element = diff_hunk_controls(
3979 display_row_range.start.0,
3980 status,
3981 multi_buffer_range.clone(),
3982 line_height,
3983 &editor,
3984 cx,
3985 );
3986 let size =
3987 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3988
3989 let x = text_hitbox.bounds.right()
3990 - self.style.scrollbar_width
3991 - px(10.)
3992 - size.width;
3993
3994 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3995 element.prepaint(window, cx)
3996 });
3997 controls.push(element);
3998 }
3999 }
4000 }
4001
4002 controls
4003 }
4004
4005 #[allow(clippy::too_many_arguments)]
4006 fn layout_signature_help(
4007 &self,
4008 hitbox: &Hitbox,
4009 content_origin: gpui::Point<Pixels>,
4010 scroll_pixel_position: gpui::Point<Pixels>,
4011 newest_selection_head: Option<DisplayPoint>,
4012 start_row: DisplayRow,
4013 line_layouts: &[LineWithInvisibles],
4014 line_height: Pixels,
4015 em_width: Pixels,
4016 window: &mut Window,
4017 cx: &mut App,
4018 ) {
4019 if !self.editor.focus_handle(cx).is_focused(window) {
4020 return;
4021 }
4022 let Some(newest_selection_head) = newest_selection_head else {
4023 return;
4024 };
4025 let selection_row = newest_selection_head.row();
4026 if selection_row < start_row {
4027 return;
4028 }
4029 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4030 else {
4031 return;
4032 };
4033
4034 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4035 - scroll_pixel_position.x
4036 + content_origin.x;
4037 let start_y =
4038 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4039
4040 let max_size = size(
4041 (120. * em_width) // Default size
4042 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4043 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4044 (16. * line_height) // Default size
4045 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4046 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4047 );
4048
4049 let maybe_element = self.editor.update(cx, |editor, cx| {
4050 if let Some(popover) = editor.signature_help_state.popover_mut() {
4051 let element = popover.render(max_size, cx);
4052 Some(element)
4053 } else {
4054 None
4055 }
4056 });
4057 if let Some(mut element) = maybe_element {
4058 let window_size = window.viewport_size();
4059 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4060 let mut point = point(start_x, start_y - size.height);
4061
4062 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4063 if point.x + size.width >= window_size.width {
4064 point.x = window_size.width - size.width;
4065 }
4066
4067 window.defer_draw(element, point, 1)
4068 }
4069 }
4070
4071 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4072 window.paint_layer(layout.hitbox.bounds, |window| {
4073 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4074 let gutter_bg = cx.theme().colors().editor_gutter_background;
4075 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4076 window.paint_quad(fill(
4077 layout.position_map.text_hitbox.bounds,
4078 self.style.background,
4079 ));
4080
4081 if let EditorMode::Full = layout.mode {
4082 let mut active_rows = layout.active_rows.iter().peekable();
4083 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4084 let mut end_row = start_row.0;
4085 while active_rows
4086 .peek()
4087 .map_or(false, |(active_row, has_selection)| {
4088 active_row.0 == end_row + 1
4089 && *has_selection == contains_non_empty_selection
4090 })
4091 {
4092 active_rows.next().unwrap();
4093 end_row += 1;
4094 }
4095
4096 if !contains_non_empty_selection {
4097 let highlight_h_range =
4098 match layout.position_map.snapshot.current_line_highlight {
4099 CurrentLineHighlight::Gutter => Some(Range {
4100 start: layout.hitbox.left(),
4101 end: layout.gutter_hitbox.right(),
4102 }),
4103 CurrentLineHighlight::Line => Some(Range {
4104 start: layout.position_map.text_hitbox.bounds.left(),
4105 end: layout.position_map.text_hitbox.bounds.right(),
4106 }),
4107 CurrentLineHighlight::All => Some(Range {
4108 start: layout.hitbox.left(),
4109 end: layout.hitbox.right(),
4110 }),
4111 CurrentLineHighlight::None => None,
4112 };
4113 if let Some(range) = highlight_h_range {
4114 let active_line_bg = cx.theme().colors().editor_active_line_background;
4115 let bounds = Bounds {
4116 origin: point(
4117 range.start,
4118 layout.hitbox.origin.y
4119 + (start_row.as_f32() - scroll_top)
4120 * layout.position_map.line_height,
4121 ),
4122 size: size(
4123 range.end - range.start,
4124 layout.position_map.line_height
4125 * (end_row - start_row.0 + 1) as f32,
4126 ),
4127 };
4128 window.paint_quad(fill(bounds, active_line_bg));
4129 }
4130 }
4131 }
4132
4133 let mut paint_highlight =
4134 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4135 let origin = point(
4136 layout.hitbox.origin.x,
4137 layout.hitbox.origin.y
4138 + (highlight_row_start.as_f32() - scroll_top)
4139 * layout.position_map.line_height,
4140 );
4141 let size = size(
4142 layout.hitbox.size.width,
4143 layout.position_map.line_height
4144 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4145 );
4146 window.paint_quad(fill(Bounds { origin, size }, color));
4147 };
4148
4149 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4150 for (&new_row, &new_background) in &layout.highlighted_rows {
4151 match &mut current_paint {
4152 Some((current_background, current_range)) => {
4153 let current_background = *current_background;
4154 let new_range_started = current_background != new_background
4155 || current_range.end.next_row() != new_row;
4156 if new_range_started {
4157 paint_highlight(
4158 current_range.start,
4159 current_range.end,
4160 current_background,
4161 );
4162 current_paint = Some((new_background, new_row..new_row));
4163 continue;
4164 } else {
4165 current_range.end = current_range.end.next_row();
4166 }
4167 }
4168 None => current_paint = Some((new_background, new_row..new_row)),
4169 };
4170 }
4171 if let Some((color, range)) = current_paint {
4172 paint_highlight(range.start, range.end, color);
4173 }
4174
4175 let scroll_left =
4176 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4177
4178 for (wrap_position, active) in layout.wrap_guides.iter() {
4179 let x = (layout.position_map.text_hitbox.origin.x
4180 + *wrap_position
4181 + layout.position_map.em_width / 2.)
4182 - scroll_left;
4183
4184 let show_scrollbars = {
4185 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4186
4187 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4188 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4189 };
4190
4191 if x < layout.position_map.text_hitbox.origin.x
4192 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4193 {
4194 continue;
4195 }
4196
4197 let color = if *active {
4198 cx.theme().colors().editor_active_wrap_guide
4199 } else {
4200 cx.theme().colors().editor_wrap_guide
4201 };
4202 window.paint_quad(fill(
4203 Bounds {
4204 origin: point(x, layout.position_map.text_hitbox.origin.y),
4205 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4206 },
4207 color,
4208 ));
4209 }
4210 }
4211 })
4212 }
4213
4214 fn paint_indent_guides(
4215 &mut self,
4216 layout: &mut EditorLayout,
4217 window: &mut Window,
4218 cx: &mut App,
4219 ) {
4220 let Some(indent_guides) = &layout.indent_guides else {
4221 return;
4222 };
4223
4224 let faded_color = |color: Hsla, alpha: f32| {
4225 let mut faded = color;
4226 faded.a = alpha;
4227 faded
4228 };
4229
4230 for indent_guide in indent_guides {
4231 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4232 let settings = indent_guide.settings;
4233
4234 // TODO fixed for now, expose them through themes later
4235 const INDENT_AWARE_ALPHA: f32 = 0.2;
4236 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4237 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4238 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4239
4240 let line_color = match (settings.coloring, indent_guide.active) {
4241 (IndentGuideColoring::Disabled, _) => None,
4242 (IndentGuideColoring::Fixed, false) => {
4243 Some(cx.theme().colors().editor_indent_guide)
4244 }
4245 (IndentGuideColoring::Fixed, true) => {
4246 Some(cx.theme().colors().editor_indent_guide_active)
4247 }
4248 (IndentGuideColoring::IndentAware, false) => {
4249 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4250 }
4251 (IndentGuideColoring::IndentAware, true) => {
4252 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4253 }
4254 };
4255
4256 let background_color = match (settings.background_coloring, indent_guide.active) {
4257 (IndentGuideBackgroundColoring::Disabled, _) => None,
4258 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4259 indent_accent_colors,
4260 INDENT_AWARE_BACKGROUND_ALPHA,
4261 )),
4262 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4263 indent_accent_colors,
4264 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4265 )),
4266 };
4267
4268 let requested_line_width = if indent_guide.active {
4269 settings.active_line_width
4270 } else {
4271 settings.line_width
4272 }
4273 .clamp(1, 10);
4274 let mut line_indicator_width = 0.;
4275 if let Some(color) = line_color {
4276 window.paint_quad(fill(
4277 Bounds {
4278 origin: indent_guide.origin,
4279 size: size(px(requested_line_width as f32), indent_guide.length),
4280 },
4281 color,
4282 ));
4283 line_indicator_width = requested_line_width as f32;
4284 }
4285
4286 if let Some(color) = background_color {
4287 let width = indent_guide.single_indent_width - px(line_indicator_width);
4288 window.paint_quad(fill(
4289 Bounds {
4290 origin: point(
4291 indent_guide.origin.x + px(line_indicator_width),
4292 indent_guide.origin.y,
4293 ),
4294 size: size(width, indent_guide.length),
4295 },
4296 color,
4297 ));
4298 }
4299 }
4300 }
4301
4302 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4303 let is_singleton = self.editor.read(cx).is_singleton(cx);
4304
4305 let line_height = layout.position_map.line_height;
4306 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4307
4308 for LineNumberLayout {
4309 shaped_line,
4310 hitbox,
4311 display_row,
4312 } in layout.line_numbers.values()
4313 {
4314 let Some(hitbox) = hitbox else {
4315 continue;
4316 };
4317
4318 let is_active = layout.active_rows.contains_key(&display_row);
4319
4320 let color = if is_active {
4321 cx.theme().colors().editor_active_line_number
4322 } else if !is_singleton && hitbox.is_hovered(window) {
4323 cx.theme().colors().editor_hover_line_number
4324 } else {
4325 cx.theme().colors().editor_line_number
4326 };
4327
4328 let Some(line) = self
4329 .shape_line_number(shaped_line.text.clone(), color, window)
4330 .log_err()
4331 else {
4332 continue;
4333 };
4334 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4335 continue;
4336 };
4337 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4338 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4339 if is_singleton {
4340 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4341 } else {
4342 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4343 }
4344 }
4345 }
4346
4347 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4348 let is_light = cx.theme().appearance().is_light();
4349
4350 if layout.display_hunks.is_empty() {
4351 return;
4352 }
4353
4354 let line_height = layout.position_map.line_height;
4355 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4356 for (hunk, hitbox) in &layout.display_hunks {
4357 let hunk_to_paint = match hunk {
4358 DisplayDiffHunk::Folded { .. } => {
4359 let hunk_bounds = Self::diff_hunk_bounds(
4360 &layout.position_map.snapshot,
4361 line_height,
4362 layout.gutter_hitbox.bounds,
4363 hunk,
4364 );
4365 Some((
4366 hunk_bounds,
4367 cx.theme().colors().version_control_modified,
4368 Corners::all(px(0.)),
4369 DiffHunkStatus::modified_none(),
4370 ))
4371 }
4372 DisplayDiffHunk::Unfolded {
4373 status,
4374 display_row_range,
4375 ..
4376 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4377 DiffHunkStatusKind::Added => (
4378 hunk_hitbox.bounds,
4379 cx.theme().colors().version_control_added,
4380 Corners::all(px(0.)),
4381 *status,
4382 ),
4383 DiffHunkStatusKind::Modified => (
4384 hunk_hitbox.bounds,
4385 cx.theme().colors().version_control_modified,
4386 Corners::all(px(0.)),
4387 *status,
4388 ),
4389 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4390 hunk_hitbox.bounds,
4391 cx.theme().colors().version_control_deleted,
4392 Corners::all(px(0.)),
4393 *status,
4394 ),
4395 DiffHunkStatusKind::Deleted => (
4396 Bounds::new(
4397 point(
4398 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4399 hunk_hitbox.origin.y,
4400 ),
4401 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4402 ),
4403 cx.theme().colors().version_control_deleted,
4404 Corners::all(1. * line_height),
4405 *status,
4406 ),
4407 }),
4408 };
4409
4410 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4411 hunk_to_paint
4412 {
4413 if secondary_status.has_secondary_hunk() {
4414 background_color =
4415 background_color.opacity(if is_light { 0.2 } else { 0.32 });
4416 }
4417
4418 // Flatten the background color with the editor color to prevent
4419 // elements below transparent hunks from showing through
4420 let flattened_background_color = cx
4421 .theme()
4422 .colors()
4423 .editor_background
4424 .blend(background_color);
4425
4426 window.paint_quad(quad(
4427 hunk_bounds,
4428 corner_radii,
4429 flattened_background_color,
4430 Edges::default(),
4431 transparent_black(),
4432 ));
4433 }
4434 }
4435 });
4436 }
4437
4438 fn diff_hunk_bounds(
4439 snapshot: &EditorSnapshot,
4440 line_height: Pixels,
4441 gutter_bounds: Bounds<Pixels>,
4442 hunk: &DisplayDiffHunk,
4443 ) -> Bounds<Pixels> {
4444 let scroll_position = snapshot.scroll_position();
4445 let scroll_top = scroll_position.y * line_height;
4446 let gutter_strip_width = (0.275 * line_height).floor();
4447
4448 match hunk {
4449 DisplayDiffHunk::Folded { display_row, .. } => {
4450 let start_y = display_row.as_f32() * line_height - scroll_top;
4451 let end_y = start_y + line_height;
4452 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4453 let highlight_size = size(gutter_strip_width, end_y - start_y);
4454 Bounds::new(highlight_origin, highlight_size)
4455 }
4456 DisplayDiffHunk::Unfolded {
4457 display_row_range,
4458 status,
4459 ..
4460 } => {
4461 if status.is_deleted() && display_row_range.is_empty() {
4462 let row = display_row_range.start;
4463
4464 let offset = line_height / 2.;
4465 let start_y = row.as_f32() * line_height - offset - scroll_top;
4466 let end_y = start_y + line_height;
4467
4468 let width = (0.35 * line_height).floor();
4469 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4470 let highlight_size = size(width, end_y - start_y);
4471 Bounds::new(highlight_origin, highlight_size)
4472 } else {
4473 let start_row = display_row_range.start;
4474 let end_row = display_row_range.end;
4475 // If we're in a multibuffer, row range span might include an
4476 // excerpt header, so if we were to draw the marker straight away,
4477 // the hunk might include the rows of that header.
4478 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4479 // Instead, we simply check whether the range we're dealing with includes
4480 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4481 let end_row_in_current_excerpt = snapshot
4482 .blocks_in_range(start_row..end_row)
4483 .find_map(|(start_row, block)| {
4484 if matches!(block, Block::ExcerptBoundary { .. }) {
4485 Some(start_row)
4486 } else {
4487 None
4488 }
4489 })
4490 .unwrap_or(end_row);
4491
4492 let start_y = start_row.as_f32() * line_height - scroll_top;
4493 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4494
4495 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4496 let highlight_size = size(gutter_strip_width, end_y - start_y);
4497 Bounds::new(highlight_origin, highlight_size)
4498 }
4499 }
4500 }
4501 }
4502
4503 fn paint_gutter_indicators(
4504 &self,
4505 layout: &mut EditorLayout,
4506 window: &mut Window,
4507 cx: &mut App,
4508 ) {
4509 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4510 window.with_element_namespace("crease_toggles", |window| {
4511 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4512 crease_toggle.paint(window, cx);
4513 }
4514 });
4515
4516 for test_indicator in layout.test_indicators.iter_mut() {
4517 test_indicator.paint(window, cx);
4518 }
4519
4520 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4521 indicator.paint(window, cx);
4522 }
4523 });
4524 }
4525
4526 fn paint_gutter_highlights(
4527 &self,
4528 layout: &mut EditorLayout,
4529 window: &mut Window,
4530 cx: &mut App,
4531 ) {
4532 for (_, hunk_hitbox) in &layout.display_hunks {
4533 if let Some(hunk_hitbox) = hunk_hitbox {
4534 if !self
4535 .editor
4536 .read(cx)
4537 .buffer()
4538 .read(cx)
4539 .all_diff_hunks_expanded()
4540 {
4541 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4542 }
4543 }
4544 }
4545
4546 let show_git_gutter = layout
4547 .position_map
4548 .snapshot
4549 .show_git_diff_gutter
4550 .unwrap_or_else(|| {
4551 matches!(
4552 ProjectSettings::get_global(cx).git.git_gutter,
4553 Some(GitGutterSetting::TrackedFiles)
4554 )
4555 });
4556 if show_git_gutter {
4557 Self::paint_gutter_diff_hunks(layout, window, cx)
4558 }
4559
4560 let highlight_width = 0.275 * layout.position_map.line_height;
4561 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4562 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4563 for (range, color) in &layout.highlighted_gutter_ranges {
4564 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4565 layout.visible_display_row_range.start - DisplayRow(1)
4566 } else {
4567 range.start.row()
4568 };
4569 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4570 layout.visible_display_row_range.end + DisplayRow(1)
4571 } else {
4572 range.end.row()
4573 };
4574
4575 let start_y = layout.gutter_hitbox.top()
4576 + start_row.0 as f32 * layout.position_map.line_height
4577 - layout.position_map.scroll_pixel_position.y;
4578 let end_y = layout.gutter_hitbox.top()
4579 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4580 - layout.position_map.scroll_pixel_position.y;
4581 let bounds = Bounds::from_corners(
4582 point(layout.gutter_hitbox.left(), start_y),
4583 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4584 );
4585 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4586 }
4587 });
4588 }
4589
4590 fn paint_blamed_display_rows(
4591 &self,
4592 layout: &mut EditorLayout,
4593 window: &mut Window,
4594 cx: &mut App,
4595 ) {
4596 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4597 return;
4598 };
4599
4600 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4601 for mut blame_element in blamed_display_rows.into_iter() {
4602 blame_element.paint(window, cx);
4603 }
4604 })
4605 }
4606
4607 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4608 window.with_content_mask(
4609 Some(ContentMask {
4610 bounds: layout.position_map.text_hitbox.bounds,
4611 }),
4612 |window| {
4613 let cursor_style = if self
4614 .editor
4615 .read(cx)
4616 .hovered_link_state
4617 .as_ref()
4618 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4619 {
4620 CursorStyle::PointingHand
4621 } else {
4622 CursorStyle::IBeam
4623 };
4624 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4625
4626 let invisible_display_ranges = self.paint_highlights(layout, window);
4627 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4628 self.paint_redactions(layout, window);
4629 self.paint_cursors(layout, window, cx);
4630 self.paint_inline_diagnostics(layout, window, cx);
4631 self.paint_inline_blame(layout, window, cx);
4632 self.paint_diff_hunk_controls(layout, window, cx);
4633 window.with_element_namespace("crease_trailers", |window| {
4634 for trailer in layout.crease_trailers.iter_mut().flatten() {
4635 trailer.element.paint(window, cx);
4636 }
4637 });
4638 },
4639 )
4640 }
4641
4642 fn paint_highlights(
4643 &mut self,
4644 layout: &mut EditorLayout,
4645 window: &mut Window,
4646 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4647 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4648 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4649 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4650 for (range, color) in &layout.highlighted_ranges {
4651 self.paint_highlighted_range(
4652 range.clone(),
4653 *color,
4654 Pixels::ZERO,
4655 line_end_overshoot,
4656 layout,
4657 window,
4658 );
4659 }
4660
4661 let corner_radius = 0.15 * layout.position_map.line_height;
4662
4663 for (player_color, selections) in &layout.selections {
4664 for selection in selections.iter() {
4665 self.paint_highlighted_range(
4666 selection.range.clone(),
4667 player_color.selection,
4668 corner_radius,
4669 corner_radius * 2.,
4670 layout,
4671 window,
4672 );
4673
4674 if selection.is_local && !selection.range.is_empty() {
4675 invisible_display_ranges.push(selection.range.clone());
4676 }
4677 }
4678 }
4679 invisible_display_ranges
4680 })
4681 }
4682
4683 fn paint_lines(
4684 &mut self,
4685 invisible_display_ranges: &[Range<DisplayPoint>],
4686 layout: &mut EditorLayout,
4687 window: &mut Window,
4688 cx: &mut App,
4689 ) {
4690 let whitespace_setting = self
4691 .editor
4692 .read(cx)
4693 .buffer
4694 .read(cx)
4695 .language_settings(cx)
4696 .show_whitespaces;
4697
4698 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4699 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4700 line_with_invisibles.draw(
4701 layout,
4702 row,
4703 layout.content_origin,
4704 whitespace_setting,
4705 invisible_display_ranges,
4706 window,
4707 cx,
4708 )
4709 }
4710
4711 for line_element in &mut layout.line_elements {
4712 line_element.paint(window, cx);
4713 }
4714 }
4715
4716 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4717 if layout.redacted_ranges.is_empty() {
4718 return;
4719 }
4720
4721 let line_end_overshoot = layout.line_end_overshoot();
4722
4723 // A softer than perfect black
4724 let redaction_color = gpui::rgb(0x0e1111);
4725
4726 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4727 for range in layout.redacted_ranges.iter() {
4728 self.paint_highlighted_range(
4729 range.clone(),
4730 redaction_color.into(),
4731 Pixels::ZERO,
4732 line_end_overshoot,
4733 layout,
4734 window,
4735 );
4736 }
4737 });
4738 }
4739
4740 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4741 for cursor in &mut layout.visible_cursors {
4742 cursor.paint(layout.content_origin, window, cx);
4743 }
4744 }
4745
4746 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4747 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4748
4749 if let Some(scrollbar_layout) = scrollbar_x {
4750 let hitbox = scrollbar_layout.hitbox.clone();
4751 let text_unit_size = scrollbar_layout.text_unit_size;
4752 let visible_range = scrollbar_layout.visible_range.clone();
4753 let thumb_bounds = scrollbar_layout.thumb_bounds();
4754
4755 if scrollbar_layout.visible {
4756 window.paint_layer(hitbox.bounds, |window| {
4757 window.paint_quad(quad(
4758 hitbox.bounds,
4759 Corners::default(),
4760 cx.theme().colors().scrollbar_track_background,
4761 Edges {
4762 top: Pixels::ZERO,
4763 right: Pixels::ZERO,
4764 bottom: Pixels::ZERO,
4765 left: Pixels::ZERO,
4766 },
4767 cx.theme().colors().scrollbar_track_border,
4768 ));
4769
4770 window.paint_quad(quad(
4771 thumb_bounds,
4772 Corners::default(),
4773 cx.theme().colors().scrollbar_thumb_background,
4774 Edges {
4775 top: Pixels::ZERO,
4776 right: Pixels::ZERO,
4777 bottom: Pixels::ZERO,
4778 left: ScrollbarLayout::BORDER_WIDTH,
4779 },
4780 cx.theme().colors().scrollbar_thumb_border,
4781 ));
4782 })
4783 }
4784
4785 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4786
4787 window.on_mouse_event({
4788 let editor = self.editor.clone();
4789
4790 // there may be a way to avoid this clone
4791 let hitbox = hitbox.clone();
4792
4793 let mut mouse_position = window.mouse_position();
4794 move |event: &MouseMoveEvent, phase, window, cx| {
4795 if phase == DispatchPhase::Capture {
4796 return;
4797 }
4798
4799 editor.update(cx, |editor, cx| {
4800 if event.pressed_button == Some(MouseButton::Left)
4801 && editor
4802 .scroll_manager
4803 .is_dragging_scrollbar(Axis::Horizontal)
4804 {
4805 let x = mouse_position.x;
4806 let new_x = event.position.x;
4807 if (hitbox.left()..hitbox.right()).contains(&x) {
4808 let mut position = editor.scroll_position(cx);
4809
4810 position.x += (new_x - x) / text_unit_size;
4811 if position.x < 0.0 {
4812 position.x = 0.0;
4813 }
4814 editor.set_scroll_position(position, window, cx);
4815 }
4816
4817 cx.stop_propagation();
4818 } else {
4819 editor.scroll_manager.set_is_dragging_scrollbar(
4820 Axis::Horizontal,
4821 false,
4822 cx,
4823 );
4824
4825 if hitbox.is_hovered(window) {
4826 editor.scroll_manager.show_scrollbar(window, cx);
4827 }
4828 }
4829 mouse_position = event.position;
4830 })
4831 }
4832 });
4833
4834 if self
4835 .editor
4836 .read(cx)
4837 .scroll_manager
4838 .is_dragging_scrollbar(Axis::Horizontal)
4839 {
4840 window.on_mouse_event({
4841 let editor = self.editor.clone();
4842 move |_: &MouseUpEvent, phase, _, cx| {
4843 if phase == DispatchPhase::Capture {
4844 return;
4845 }
4846
4847 editor.update(cx, |editor, cx| {
4848 editor.scroll_manager.set_is_dragging_scrollbar(
4849 Axis::Horizontal,
4850 false,
4851 cx,
4852 );
4853 cx.stop_propagation();
4854 });
4855 }
4856 });
4857 } else {
4858 window.on_mouse_event({
4859 let editor = self.editor.clone();
4860
4861 move |event: &MouseDownEvent, phase, window, cx| {
4862 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4863 return;
4864 }
4865
4866 editor.update(cx, |editor, cx| {
4867 editor.scroll_manager.set_is_dragging_scrollbar(
4868 Axis::Horizontal,
4869 true,
4870 cx,
4871 );
4872
4873 let x = event.position.x;
4874
4875 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4876 let center_row =
4877 ((x - hitbox.left()) / text_unit_size).round() as u32;
4878 let top_row = center_row.saturating_sub(
4879 (visible_range.end - visible_range.start) as u32 / 2,
4880 );
4881
4882 let mut position = editor.scroll_position(cx);
4883 position.x = top_row as f32;
4884
4885 editor.set_scroll_position(position, window, cx);
4886 } else {
4887 editor.scroll_manager.show_scrollbar(window, cx);
4888 }
4889
4890 cx.stop_propagation();
4891 });
4892 }
4893 });
4894 }
4895 }
4896
4897 if let Some(scrollbar_layout) = scrollbar_y {
4898 let hitbox = scrollbar_layout.hitbox.clone();
4899 let text_unit_size = scrollbar_layout.text_unit_size;
4900 let visible_range = scrollbar_layout.visible_range.clone();
4901 let thumb_bounds = scrollbar_layout.thumb_bounds();
4902
4903 if scrollbar_layout.visible {
4904 window.paint_layer(hitbox.bounds, |window| {
4905 window.paint_quad(quad(
4906 hitbox.bounds,
4907 Corners::default(),
4908 cx.theme().colors().scrollbar_track_background,
4909 Edges {
4910 top: Pixels::ZERO,
4911 right: Pixels::ZERO,
4912 bottom: Pixels::ZERO,
4913 left: ScrollbarLayout::BORDER_WIDTH,
4914 },
4915 cx.theme().colors().scrollbar_track_border,
4916 ));
4917
4918 let fast_markers =
4919 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4920 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4921 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4922
4923 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4924 for marker in markers.iter().chain(&fast_markers) {
4925 let mut marker = marker.clone();
4926 marker.bounds.origin += hitbox.origin;
4927 window.paint_quad(marker);
4928 }
4929
4930 window.paint_quad(quad(
4931 thumb_bounds,
4932 Corners::default(),
4933 cx.theme().colors().scrollbar_thumb_background,
4934 Edges {
4935 top: Pixels::ZERO,
4936 right: Pixels::ZERO,
4937 bottom: Pixels::ZERO,
4938 left: ScrollbarLayout::BORDER_WIDTH,
4939 },
4940 cx.theme().colors().scrollbar_thumb_border,
4941 ));
4942 });
4943 }
4944
4945 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4946
4947 window.on_mouse_event({
4948 let editor = self.editor.clone();
4949
4950 let hitbox = hitbox.clone();
4951
4952 let mut mouse_position = window.mouse_position();
4953 move |event: &MouseMoveEvent, phase, window, cx| {
4954 if phase == DispatchPhase::Capture {
4955 return;
4956 }
4957
4958 editor.update(cx, |editor, cx| {
4959 if event.pressed_button == Some(MouseButton::Left)
4960 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4961 {
4962 let y = mouse_position.y;
4963 let new_y = event.position.y;
4964 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4965 let mut position = editor.scroll_position(cx);
4966 position.y += (new_y - y) / text_unit_size;
4967 if position.y < 0.0 {
4968 position.y = 0.0;
4969 }
4970 editor.set_scroll_position(position, window, cx);
4971 }
4972 } else {
4973 editor.scroll_manager.set_is_dragging_scrollbar(
4974 Axis::Vertical,
4975 false,
4976 cx,
4977 );
4978
4979 if hitbox.is_hovered(window) {
4980 editor.scroll_manager.show_scrollbar(window, cx);
4981 }
4982 }
4983 mouse_position = event.position;
4984 })
4985 }
4986 });
4987
4988 if self
4989 .editor
4990 .read(cx)
4991 .scroll_manager
4992 .is_dragging_scrollbar(Axis::Vertical)
4993 {
4994 window.on_mouse_event({
4995 let editor = self.editor.clone();
4996 move |_: &MouseUpEvent, phase, _, cx| {
4997 if phase == DispatchPhase::Capture {
4998 return;
4999 }
5000
5001 editor.update(cx, |editor, cx| {
5002 editor.scroll_manager.set_is_dragging_scrollbar(
5003 Axis::Vertical,
5004 false,
5005 cx,
5006 );
5007 cx.stop_propagation();
5008 });
5009 }
5010 });
5011 } else {
5012 window.on_mouse_event({
5013 let editor = self.editor.clone();
5014
5015 move |event: &MouseDownEvent, phase, window, cx| {
5016 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5017 return;
5018 }
5019
5020 editor.update(cx, |editor, cx| {
5021 editor.scroll_manager.set_is_dragging_scrollbar(
5022 Axis::Vertical,
5023 true,
5024 cx,
5025 );
5026
5027 let y = event.position.y;
5028 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5029 let center_row =
5030 ((y - hitbox.top()) / text_unit_size).round() as u32;
5031 let top_row = center_row.saturating_sub(
5032 (visible_range.end - visible_range.start) as u32 / 2,
5033 );
5034 let mut position = editor.scroll_position(cx);
5035 position.y = top_row as f32;
5036 editor.set_scroll_position(position, window, cx);
5037 } else {
5038 editor.scroll_manager.show_scrollbar(window, cx);
5039 }
5040
5041 cx.stop_propagation();
5042 });
5043 }
5044 });
5045 }
5046 }
5047 }
5048
5049 fn collect_fast_scrollbar_markers(
5050 &self,
5051 layout: &EditorLayout,
5052 scrollbar_layout: &ScrollbarLayout,
5053 cx: &mut App,
5054 ) -> Vec<PaintQuad> {
5055 const LIMIT: usize = 100;
5056 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5057 return vec![];
5058 }
5059 let cursor_ranges = layout
5060 .cursors
5061 .iter()
5062 .map(|(point, color)| ColoredRange {
5063 start: point.row(),
5064 end: point.row(),
5065 color: *color,
5066 })
5067 .collect_vec();
5068 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5069 }
5070
5071 fn refresh_slow_scrollbar_markers(
5072 &self,
5073 layout: &EditorLayout,
5074 scrollbar_layout: &ScrollbarLayout,
5075 window: &mut Window,
5076 cx: &mut App,
5077 ) {
5078 self.editor.update(cx, |editor, cx| {
5079 if !editor.is_singleton(cx)
5080 || !editor
5081 .scrollbar_marker_state
5082 .should_refresh(scrollbar_layout.hitbox.size)
5083 {
5084 return;
5085 }
5086
5087 let scrollbar_layout = scrollbar_layout.clone();
5088 let background_highlights = editor.background_highlights.clone();
5089 let snapshot = layout.position_map.snapshot.clone();
5090 let theme = cx.theme().clone();
5091 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5092
5093 editor.scrollbar_marker_state.dirty = false;
5094 editor.scrollbar_marker_state.pending_refresh =
5095 Some(cx.spawn_in(window, |editor, mut cx| async move {
5096 let scrollbar_size = scrollbar_layout.hitbox.size;
5097 let scrollbar_markers = cx
5098 .background_spawn(async move {
5099 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5100 let mut marker_quads = Vec::new();
5101 if scrollbar_settings.git_diff {
5102 let marker_row_ranges =
5103 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5104 let start_display_row =
5105 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5106 .to_display_point(&snapshot.display_snapshot)
5107 .row();
5108 let mut end_display_row =
5109 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5110 .to_display_point(&snapshot.display_snapshot)
5111 .row();
5112 if end_display_row != start_display_row {
5113 end_display_row.0 -= 1;
5114 }
5115 let color = match &hunk.status().kind {
5116 DiffHunkStatusKind::Added => {
5117 theme.colors().version_control_added
5118 }
5119 DiffHunkStatusKind::Modified => {
5120 theme.colors().version_control_modified
5121 }
5122 DiffHunkStatusKind::Deleted => {
5123 theme.colors().version_control_deleted
5124 }
5125 };
5126 ColoredRange {
5127 start: start_display_row,
5128 end: end_display_row,
5129 color,
5130 }
5131 });
5132
5133 marker_quads.extend(
5134 scrollbar_layout
5135 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5136 );
5137 }
5138
5139 for (background_highlight_id, (_, background_ranges)) in
5140 background_highlights.iter()
5141 {
5142 let is_search_highlights = *background_highlight_id
5143 == TypeId::of::<BufferSearchHighlights>();
5144 let is_text_highlights = *background_highlight_id
5145 == TypeId::of::<SelectedTextHighlight>();
5146 let is_symbol_occurrences = *background_highlight_id
5147 == TypeId::of::<DocumentHighlightRead>()
5148 || *background_highlight_id
5149 == TypeId::of::<DocumentHighlightWrite>();
5150 if (is_search_highlights && scrollbar_settings.search_results)
5151 || (is_text_highlights && scrollbar_settings.selected_text)
5152 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5153 {
5154 let mut color = theme.status().info;
5155 if is_symbol_occurrences {
5156 color.fade_out(0.5);
5157 }
5158 let marker_row_ranges = background_ranges.iter().map(|range| {
5159 let display_start = range
5160 .start
5161 .to_display_point(&snapshot.display_snapshot);
5162 let display_end =
5163 range.end.to_display_point(&snapshot.display_snapshot);
5164 ColoredRange {
5165 start: display_start.row(),
5166 end: display_end.row(),
5167 color,
5168 }
5169 });
5170 marker_quads.extend(
5171 scrollbar_layout
5172 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5173 );
5174 }
5175 }
5176
5177 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5178 let diagnostics = snapshot
5179 .buffer_snapshot
5180 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5181 // Don't show diagnostics the user doesn't care about
5182 .filter(|diagnostic| {
5183 match (
5184 scrollbar_settings.diagnostics,
5185 diagnostic.diagnostic.severity,
5186 ) {
5187 (ScrollbarDiagnostics::All, _) => true,
5188 (
5189 ScrollbarDiagnostics::Error,
5190 DiagnosticSeverity::ERROR,
5191 ) => true,
5192 (
5193 ScrollbarDiagnostics::Warning,
5194 DiagnosticSeverity::ERROR
5195 | DiagnosticSeverity::WARNING,
5196 ) => true,
5197 (
5198 ScrollbarDiagnostics::Information,
5199 DiagnosticSeverity::ERROR
5200 | DiagnosticSeverity::WARNING
5201 | DiagnosticSeverity::INFORMATION,
5202 ) => true,
5203 (_, _) => false,
5204 }
5205 })
5206 // We want to sort by severity, in order to paint the most severe diagnostics last.
5207 .sorted_by_key(|diagnostic| {
5208 std::cmp::Reverse(diagnostic.diagnostic.severity)
5209 });
5210
5211 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5212 let start_display = diagnostic
5213 .range
5214 .start
5215 .to_display_point(&snapshot.display_snapshot);
5216 let end_display = diagnostic
5217 .range
5218 .end
5219 .to_display_point(&snapshot.display_snapshot);
5220 let color = match diagnostic.diagnostic.severity {
5221 DiagnosticSeverity::ERROR => theme.status().error,
5222 DiagnosticSeverity::WARNING => theme.status().warning,
5223 DiagnosticSeverity::INFORMATION => theme.status().info,
5224 _ => theme.status().hint,
5225 };
5226 ColoredRange {
5227 start: start_display.row(),
5228 end: end_display.row(),
5229 color,
5230 }
5231 });
5232 marker_quads.extend(
5233 scrollbar_layout
5234 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5235 );
5236 }
5237
5238 Arc::from(marker_quads)
5239 })
5240 .await;
5241
5242 editor.update(&mut cx, |editor, cx| {
5243 editor.scrollbar_marker_state.markers = scrollbar_markers;
5244 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5245 editor.scrollbar_marker_state.pending_refresh = None;
5246 cx.notify();
5247 })?;
5248
5249 Ok(())
5250 }));
5251 });
5252 }
5253
5254 #[allow(clippy::too_many_arguments)]
5255 fn paint_highlighted_range(
5256 &self,
5257 range: Range<DisplayPoint>,
5258 color: Hsla,
5259 corner_radius: Pixels,
5260 line_end_overshoot: Pixels,
5261 layout: &EditorLayout,
5262 window: &mut Window,
5263 ) {
5264 let start_row = layout.visible_display_row_range.start;
5265 let end_row = layout.visible_display_row_range.end;
5266 if range.start != range.end {
5267 let row_range = if range.end.column() == 0 {
5268 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5269 } else {
5270 cmp::max(range.start.row(), start_row)
5271 ..cmp::min(range.end.row().next_row(), end_row)
5272 };
5273
5274 let highlighted_range = HighlightedRange {
5275 color,
5276 line_height: layout.position_map.line_height,
5277 corner_radius,
5278 start_y: layout.content_origin.y
5279 + row_range.start.as_f32() * layout.position_map.line_height
5280 - layout.position_map.scroll_pixel_position.y,
5281 lines: row_range
5282 .iter_rows()
5283 .map(|row| {
5284 let line_layout =
5285 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5286 HighlightedRangeLine {
5287 start_x: if row == range.start.row() {
5288 layout.content_origin.x
5289 + line_layout.x_for_index(range.start.column() as usize)
5290 - layout.position_map.scroll_pixel_position.x
5291 } else {
5292 layout.content_origin.x
5293 - layout.position_map.scroll_pixel_position.x
5294 },
5295 end_x: if row == range.end.row() {
5296 layout.content_origin.x
5297 + line_layout.x_for_index(range.end.column() as usize)
5298 - layout.position_map.scroll_pixel_position.x
5299 } else {
5300 layout.content_origin.x + line_layout.width + line_end_overshoot
5301 - layout.position_map.scroll_pixel_position.x
5302 },
5303 }
5304 })
5305 .collect(),
5306 };
5307
5308 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5309 }
5310 }
5311
5312 fn paint_inline_diagnostics(
5313 &mut self,
5314 layout: &mut EditorLayout,
5315 window: &mut Window,
5316 cx: &mut App,
5317 ) {
5318 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5319 inline_diagnostic.1.paint(window, cx);
5320 }
5321 }
5322
5323 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5324 if let Some(mut inline_blame) = layout.inline_blame.take() {
5325 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5326 inline_blame.paint(window, cx);
5327 })
5328 }
5329 }
5330
5331 fn paint_diff_hunk_controls(
5332 &mut self,
5333 layout: &mut EditorLayout,
5334 window: &mut Window,
5335 cx: &mut App,
5336 ) {
5337 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5338 diff_hunk_control.paint(window, cx);
5339 }
5340 }
5341
5342 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5343 for mut block in layout.blocks.drain(..) {
5344 block.element.paint(window, cx);
5345 }
5346 }
5347
5348 fn paint_inline_completion_popover(
5349 &mut self,
5350 layout: &mut EditorLayout,
5351 window: &mut Window,
5352 cx: &mut App,
5353 ) {
5354 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5355 inline_completion_popover.paint(window, cx);
5356 }
5357 }
5358
5359 fn paint_mouse_context_menu(
5360 &mut self,
5361 layout: &mut EditorLayout,
5362 window: &mut Window,
5363 cx: &mut App,
5364 ) {
5365 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5366 mouse_context_menu.paint(window, cx);
5367 }
5368 }
5369
5370 fn paint_scroll_wheel_listener(
5371 &mut self,
5372 layout: &EditorLayout,
5373 window: &mut Window,
5374 cx: &mut App,
5375 ) {
5376 window.on_mouse_event({
5377 let position_map = layout.position_map.clone();
5378 let editor = self.editor.clone();
5379 let hitbox = layout.hitbox.clone();
5380 let mut delta = ScrollDelta::default();
5381
5382 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5383 // accidentally turn off their scrolling.
5384 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5385
5386 move |event: &ScrollWheelEvent, phase, window, cx| {
5387 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5388 delta = delta.coalesce(event.delta);
5389 editor.update(cx, |editor, cx| {
5390 let position_map: &PositionMap = &position_map;
5391
5392 let line_height = position_map.line_height;
5393 let max_glyph_width = position_map.em_width;
5394 let (delta, axis) = match delta {
5395 gpui::ScrollDelta::Pixels(mut pixels) => {
5396 //Trackpad
5397 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5398 (pixels, axis)
5399 }
5400
5401 gpui::ScrollDelta::Lines(lines) => {
5402 //Not trackpad
5403 let pixels =
5404 point(lines.x * max_glyph_width, lines.y * line_height);
5405 (pixels, None)
5406 }
5407 };
5408
5409 let current_scroll_position = position_map.snapshot.scroll_position();
5410 let x = (current_scroll_position.x * max_glyph_width
5411 - (delta.x * scroll_sensitivity))
5412 / max_glyph_width;
5413 let y = (current_scroll_position.y * line_height
5414 - (delta.y * scroll_sensitivity))
5415 / line_height;
5416 let mut scroll_position =
5417 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5418 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5419 if forbid_vertical_scroll {
5420 scroll_position.y = current_scroll_position.y;
5421 }
5422
5423 if scroll_position != current_scroll_position {
5424 editor.scroll(scroll_position, axis, window, cx);
5425 cx.stop_propagation();
5426 } else if y < 0. {
5427 // Due to clamping, we may fail to detect cases of overscroll to the top;
5428 // We want the scroll manager to get an update in such cases and detect the change of direction
5429 // on the next frame.
5430 cx.notify();
5431 }
5432 });
5433 }
5434 }
5435 });
5436 }
5437
5438 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5439 self.paint_scroll_wheel_listener(layout, window, cx);
5440
5441 window.on_mouse_event({
5442 let position_map = layout.position_map.clone();
5443 let editor = self.editor.clone();
5444 let diff_hunk_range =
5445 layout
5446 .display_hunks
5447 .iter()
5448 .find_map(|(hunk, hunk_hitbox)| match hunk {
5449 DisplayDiffHunk::Folded { .. } => None,
5450 DisplayDiffHunk::Unfolded {
5451 multi_buffer_range, ..
5452 } => {
5453 if hunk_hitbox
5454 .as_ref()
5455 .map(|hitbox| hitbox.is_hovered(window))
5456 .unwrap_or(false)
5457 {
5458 Some(multi_buffer_range.clone())
5459 } else {
5460 None
5461 }
5462 }
5463 });
5464 let line_numbers = layout.line_numbers.clone();
5465
5466 move |event: &MouseDownEvent, phase, window, cx| {
5467 if phase == DispatchPhase::Bubble {
5468 match event.button {
5469 MouseButton::Left => editor.update(cx, |editor, cx| {
5470 let pending_mouse_down = editor
5471 .pending_mouse_down
5472 .get_or_insert_with(Default::default)
5473 .clone();
5474
5475 *pending_mouse_down.borrow_mut() = Some(event.clone());
5476
5477 Self::mouse_left_down(
5478 editor,
5479 event,
5480 diff_hunk_range.clone(),
5481 &position_map,
5482 line_numbers.as_ref(),
5483 window,
5484 cx,
5485 );
5486 }),
5487 MouseButton::Right => editor.update(cx, |editor, cx| {
5488 Self::mouse_right_down(editor, event, &position_map, window, cx);
5489 }),
5490 MouseButton::Middle => editor.update(cx, |editor, cx| {
5491 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5492 }),
5493 _ => {}
5494 };
5495 }
5496 }
5497 });
5498
5499 window.on_mouse_event({
5500 let editor = self.editor.clone();
5501 let position_map = layout.position_map.clone();
5502
5503 move |event: &MouseUpEvent, phase, window, cx| {
5504 if phase == DispatchPhase::Bubble {
5505 editor.update(cx, |editor, cx| {
5506 Self::mouse_up(editor, event, &position_map, window, cx)
5507 });
5508 }
5509 }
5510 });
5511
5512 window.on_mouse_event({
5513 let editor = self.editor.clone();
5514 let position_map = layout.position_map.clone();
5515 let mut captured_mouse_down = None;
5516
5517 move |event: &MouseUpEvent, phase, window, cx| match phase {
5518 // Clear the pending mouse down during the capture phase,
5519 // so that it happens even if another event handler stops
5520 // propagation.
5521 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5522 let pending_mouse_down = editor
5523 .pending_mouse_down
5524 .get_or_insert_with(Default::default)
5525 .clone();
5526
5527 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5528 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5529 captured_mouse_down = pending_mouse_down.take();
5530 window.refresh();
5531 }
5532 }),
5533 // Fire click handlers during the bubble phase.
5534 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5535 if let Some(mouse_down) = captured_mouse_down.take() {
5536 let event = ClickEvent {
5537 down: mouse_down,
5538 up: event.clone(),
5539 };
5540 Self::click(editor, &event, &position_map, window, cx);
5541 }
5542 }),
5543 }
5544 });
5545
5546 window.on_mouse_event({
5547 let position_map = layout.position_map.clone();
5548 let editor = self.editor.clone();
5549
5550 move |event: &MouseMoveEvent, phase, window, cx| {
5551 if phase == DispatchPhase::Bubble {
5552 editor.update(cx, |editor, cx| {
5553 if editor.hover_state.focused(window, cx) {
5554 return;
5555 }
5556 if event.pressed_button == Some(MouseButton::Left)
5557 || event.pressed_button == Some(MouseButton::Middle)
5558 {
5559 Self::mouse_dragged(editor, event, &position_map, window, cx)
5560 }
5561
5562 Self::mouse_moved(editor, event, &position_map, window, cx)
5563 });
5564 }
5565 }
5566 });
5567 }
5568
5569 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5570 bounds.top_right().x - self.style.scrollbar_width
5571 }
5572
5573 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5574 let style = &self.style;
5575 let font_size = style.text.font_size.to_pixels(window.rem_size());
5576 let layout = window
5577 .text_system()
5578 .shape_line(
5579 SharedString::from(" ".repeat(column)),
5580 font_size,
5581 &[TextRun {
5582 len: column,
5583 font: style.text.font(),
5584 color: Hsla::default(),
5585 background_color: None,
5586 underline: None,
5587 strikethrough: None,
5588 }],
5589 )
5590 .unwrap();
5591
5592 layout.width
5593 }
5594
5595 fn max_line_number_width(
5596 &self,
5597 snapshot: &EditorSnapshot,
5598 window: &mut Window,
5599 cx: &mut App,
5600 ) -> Pixels {
5601 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5602 self.column_pixels(digit_count, window, cx)
5603 }
5604
5605 fn shape_line_number(
5606 &self,
5607 text: SharedString,
5608 color: Hsla,
5609 window: &mut Window,
5610 ) -> anyhow::Result<ShapedLine> {
5611 let run = TextRun {
5612 len: text.len(),
5613 font: self.style.text.font(),
5614 color,
5615 background_color: None,
5616 underline: None,
5617 strikethrough: None,
5618 };
5619 window.text_system().shape_line(
5620 text,
5621 self.style.text.font_size.to_pixels(window.rem_size()),
5622 &[run],
5623 )
5624 }
5625}
5626
5627fn header_jump_data(
5628 snapshot: &EditorSnapshot,
5629 block_row_start: DisplayRow,
5630 height: u32,
5631 for_excerpt: &ExcerptInfo,
5632) -> JumpData {
5633 let range = &for_excerpt.range;
5634 let buffer = &for_excerpt.buffer;
5635 let jump_anchor = range
5636 .primary
5637 .as_ref()
5638 .map_or(range.context.start, |primary| primary.start);
5639
5640 let excerpt_start = range.context.start;
5641 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5642 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5643 0
5644 } else {
5645 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5646 jump_position.row.saturating_sub(excerpt_start_point.row)
5647 };
5648
5649 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5650 .saturating_sub(
5651 snapshot
5652 .scroll_anchor
5653 .scroll_position(&snapshot.display_snapshot)
5654 .y as u32,
5655 );
5656
5657 JumpData::MultiBufferPoint {
5658 excerpt_id: for_excerpt.id,
5659 anchor: jump_anchor,
5660 position: jump_position,
5661 line_offset_from_top,
5662 }
5663}
5664
5665pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5666
5667impl AcceptEditPredictionBinding {
5668 pub fn keystroke(&self) -> Option<&Keystroke> {
5669 if let Some(binding) = self.0.as_ref() {
5670 match &binding.keystrokes() {
5671 [keystroke] => Some(keystroke),
5672 _ => None,
5673 }
5674 } else {
5675 None
5676 }
5677 }
5678}
5679
5680#[allow(clippy::too_many_arguments)]
5681fn prepaint_gutter_button(
5682 button: IconButton,
5683 row: DisplayRow,
5684 line_height: Pixels,
5685 gutter_dimensions: &GutterDimensions,
5686 scroll_pixel_position: gpui::Point<Pixels>,
5687 gutter_hitbox: &Hitbox,
5688 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5689 window: &mut Window,
5690 cx: &mut App,
5691) -> AnyElement {
5692 let mut button = button.into_any_element();
5693 let available_space = size(
5694 AvailableSpace::MinContent,
5695 AvailableSpace::Definite(line_height),
5696 );
5697 let indicator_size = button.layout_as_root(available_space, window, cx);
5698
5699 let blame_width = gutter_dimensions.git_blame_entries_width;
5700 let gutter_width = display_hunks
5701 .binary_search_by(|(hunk, _)| match hunk {
5702 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5703 DisplayDiffHunk::Unfolded {
5704 display_row_range, ..
5705 } => {
5706 if display_row_range.end <= row {
5707 Ordering::Less
5708 } else if display_row_range.start > row {
5709 Ordering::Greater
5710 } else {
5711 Ordering::Equal
5712 }
5713 }
5714 })
5715 .ok()
5716 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5717 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5718
5719 let mut x = left_offset;
5720 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5721 - indicator_size.width
5722 - left_offset;
5723 x += available_width / 2.;
5724
5725 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5726 y += (line_height - indicator_size.height) / 2.;
5727
5728 button.prepaint_as_root(
5729 gutter_hitbox.origin + point(x, y),
5730 available_space,
5731 window,
5732 cx,
5733 );
5734 button
5735}
5736
5737fn render_inline_blame_entry(
5738 editor: Entity<Editor>,
5739 blame: &gpui::Entity<GitBlame>,
5740 blame_entry: BlameEntry,
5741 style: &EditorStyle,
5742 cx: &mut App,
5743) -> AnyElement {
5744 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5745
5746 let author = blame_entry.author.as_deref().unwrap_or_default();
5747 let summary_enabled = ProjectSettings::get_global(cx)
5748 .git
5749 .show_inline_commit_summary();
5750
5751 let text = match blame_entry.summary.as_ref() {
5752 Some(summary) if summary_enabled => {
5753 format!("{}, {} - {}", author, relative_timestamp, summary)
5754 }
5755 _ => format!("{}, {}", author, relative_timestamp),
5756 };
5757 let blame = blame.clone();
5758 let blame_entry = blame_entry.clone();
5759
5760 h_flex()
5761 .id("inline-blame")
5762 .w_full()
5763 .font_family(style.text.font().family)
5764 .text_color(cx.theme().status().hint)
5765 .line_height(style.text.line_height)
5766 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5767 .child(text)
5768 .gap_2()
5769 .hoverable_tooltip(move |window, cx| {
5770 let details = blame.read(cx).details_for_entry(&blame_entry);
5771 let tooltip =
5772 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5773 editor.update(cx, |editor, _| {
5774 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5775 });
5776 tooltip.into()
5777 })
5778 .into_any()
5779}
5780
5781fn render_blame_entry(
5782 ix: usize,
5783 blame: &gpui::Entity<GitBlame>,
5784 blame_entry: BlameEntry,
5785 style: &EditorStyle,
5786 last_used_color: &mut Option<(PlayerColor, Oid)>,
5787 editor: Entity<Editor>,
5788 cx: &mut App,
5789) -> AnyElement {
5790 let mut sha_color = cx
5791 .theme()
5792 .players()
5793 .color_for_participant(blame_entry.sha.into());
5794 // If the last color we used is the same as the one we get for this line, but
5795 // the commit SHAs are different, then we try again to get a different color.
5796 match *last_used_color {
5797 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5798 let index: u32 = blame_entry.sha.into();
5799 sha_color = cx.theme().players().color_for_participant(index + 1);
5800 }
5801 _ => {}
5802 };
5803 last_used_color.replace((sha_color, blame_entry.sha));
5804
5805 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5806
5807 let short_commit_id = blame_entry.sha.display_short();
5808
5809 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5810 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5811 let details = blame.read(cx).details_for_entry(&blame_entry);
5812
5813 h_flex()
5814 .w_full()
5815 .justify_between()
5816 .font_family(style.text.font().family)
5817 .line_height(style.text.line_height)
5818 .id(("blame", ix))
5819 .text_color(cx.theme().status().hint)
5820 .pr_2()
5821 .gap_2()
5822 .child(
5823 h_flex()
5824 .items_center()
5825 .gap_2()
5826 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5827 .child(name),
5828 )
5829 .child(relative_timestamp)
5830 .on_mouse_down(MouseButton::Right, {
5831 let blame_entry = blame_entry.clone();
5832 let details = details.clone();
5833 move |event, window, cx| {
5834 deploy_blame_entry_context_menu(
5835 &blame_entry,
5836 details.as_ref(),
5837 editor.clone(),
5838 event.position,
5839 window,
5840 cx,
5841 );
5842 }
5843 })
5844 .hover(|style| style.bg(cx.theme().colors().element_hover))
5845 .when_some(
5846 details
5847 .as_ref()
5848 .and_then(|details| details.permalink.clone()),
5849 |this, url| {
5850 this.cursor_pointer().on_click(move |_, _, cx| {
5851 cx.stop_propagation();
5852 cx.open_url(url.as_str())
5853 })
5854 },
5855 )
5856 .hoverable_tooltip(move |window, cx| {
5857 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5858 .into()
5859 })
5860 .into_any()
5861}
5862
5863fn deploy_blame_entry_context_menu(
5864 blame_entry: &BlameEntry,
5865 details: Option<&ParsedCommitMessage>,
5866 editor: Entity<Editor>,
5867 position: gpui::Point<Pixels>,
5868 window: &mut Window,
5869 cx: &mut App,
5870) {
5871 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5872 let sha = format!("{}", blame_entry.sha);
5873 menu.on_blur_subscription(Subscription::new(|| {}))
5874 .entry("Copy commit SHA", None, move |_, cx| {
5875 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5876 })
5877 .when_some(
5878 details.and_then(|details| details.permalink.clone()),
5879 |this, url| {
5880 this.entry("Open permalink", None, move |_, cx| {
5881 cx.open_url(url.as_str())
5882 })
5883 },
5884 )
5885 });
5886
5887 editor.update(cx, move |editor, cx| {
5888 editor.mouse_context_menu = Some(MouseContextMenu::new(
5889 MenuPosition::PinnedToScreen(position),
5890 context_menu,
5891 window,
5892 cx,
5893 ));
5894 cx.notify();
5895 });
5896}
5897
5898#[derive(Debug)]
5899pub(crate) struct LineWithInvisibles {
5900 fragments: SmallVec<[LineFragment; 1]>,
5901 invisibles: Vec<Invisible>,
5902 len: usize,
5903 pub(crate) width: Pixels,
5904 font_size: Pixels,
5905}
5906
5907#[allow(clippy::large_enum_variant)]
5908enum LineFragment {
5909 Text(ShapedLine),
5910 Element {
5911 element: Option<AnyElement>,
5912 size: Size<Pixels>,
5913 len: usize,
5914 },
5915}
5916
5917impl fmt::Debug for LineFragment {
5918 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5919 match self {
5920 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5921 LineFragment::Element { size, len, .. } => f
5922 .debug_struct("Element")
5923 .field("size", size)
5924 .field("len", len)
5925 .finish(),
5926 }
5927 }
5928}
5929
5930impl LineWithInvisibles {
5931 #[allow(clippy::too_many_arguments)]
5932 fn from_chunks<'a>(
5933 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5934 editor_style: &EditorStyle,
5935 max_line_len: usize,
5936 max_line_count: usize,
5937 editor_mode: EditorMode,
5938 text_width: Pixels,
5939 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5940 window: &mut Window,
5941 cx: &mut App,
5942 ) -> Vec<Self> {
5943 let text_style = &editor_style.text;
5944 let mut layouts = Vec::with_capacity(max_line_count);
5945 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5946 let mut line = String::new();
5947 let mut invisibles = Vec::new();
5948 let mut width = Pixels::ZERO;
5949 let mut len = 0;
5950 let mut styles = Vec::new();
5951 let mut non_whitespace_added = false;
5952 let mut row = 0;
5953 let mut line_exceeded_max_len = false;
5954 let font_size = text_style.font_size.to_pixels(window.rem_size());
5955
5956 let ellipsis = SharedString::from("⋯");
5957
5958 for highlighted_chunk in chunks.chain([HighlightedChunk {
5959 text: "\n",
5960 style: None,
5961 is_tab: false,
5962 replacement: None,
5963 }]) {
5964 if let Some(replacement) = highlighted_chunk.replacement {
5965 if !line.is_empty() {
5966 let shaped_line = window
5967 .text_system()
5968 .shape_line(line.clone().into(), font_size, &styles)
5969 .unwrap();
5970 width += shaped_line.width;
5971 len += shaped_line.len;
5972 fragments.push(LineFragment::Text(shaped_line));
5973 line.clear();
5974 styles.clear();
5975 }
5976
5977 match replacement {
5978 ChunkReplacement::Renderer(renderer) => {
5979 let available_width = if renderer.constrain_width {
5980 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5981 ellipsis.clone()
5982 } else {
5983 SharedString::from(Arc::from(highlighted_chunk.text))
5984 };
5985 let shaped_line = window
5986 .text_system()
5987 .shape_line(
5988 chunk,
5989 font_size,
5990 &[text_style.to_run(highlighted_chunk.text.len())],
5991 )
5992 .unwrap();
5993 AvailableSpace::Definite(shaped_line.width)
5994 } else {
5995 AvailableSpace::MinContent
5996 };
5997
5998 let mut element = (renderer.render)(&mut ChunkRendererContext {
5999 context: cx,
6000 window,
6001 max_width: text_width,
6002 });
6003 let line_height = text_style.line_height_in_pixels(window.rem_size());
6004 let size = element.layout_as_root(
6005 size(available_width, AvailableSpace::Definite(line_height)),
6006 window,
6007 cx,
6008 );
6009
6010 width += size.width;
6011 len += highlighted_chunk.text.len();
6012 fragments.push(LineFragment::Element {
6013 element: Some(element),
6014 size,
6015 len: highlighted_chunk.text.len(),
6016 });
6017 }
6018 ChunkReplacement::Str(x) => {
6019 let text_style = if let Some(style) = highlighted_chunk.style {
6020 Cow::Owned(text_style.clone().highlight(style))
6021 } else {
6022 Cow::Borrowed(text_style)
6023 };
6024
6025 let run = TextRun {
6026 len: x.len(),
6027 font: text_style.font(),
6028 color: text_style.color,
6029 background_color: text_style.background_color,
6030 underline: text_style.underline,
6031 strikethrough: text_style.strikethrough,
6032 };
6033 let line_layout = window
6034 .text_system()
6035 .shape_line(x, font_size, &[run])
6036 .unwrap()
6037 .with_len(highlighted_chunk.text.len());
6038
6039 width += line_layout.width;
6040 len += highlighted_chunk.text.len();
6041 fragments.push(LineFragment::Text(line_layout))
6042 }
6043 }
6044 } else {
6045 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6046 if ix > 0 {
6047 let shaped_line = window
6048 .text_system()
6049 .shape_line(line.clone().into(), font_size, &styles)
6050 .unwrap();
6051 width += shaped_line.width;
6052 len += shaped_line.len;
6053 fragments.push(LineFragment::Text(shaped_line));
6054 layouts.push(Self {
6055 width: mem::take(&mut width),
6056 len: mem::take(&mut len),
6057 fragments: mem::take(&mut fragments),
6058 invisibles: std::mem::take(&mut invisibles),
6059 font_size,
6060 });
6061
6062 line.clear();
6063 styles.clear();
6064 row += 1;
6065 line_exceeded_max_len = false;
6066 non_whitespace_added = false;
6067 if row == max_line_count {
6068 return layouts;
6069 }
6070 }
6071
6072 if !line_chunk.is_empty() && !line_exceeded_max_len {
6073 let text_style = if let Some(style) = highlighted_chunk.style {
6074 Cow::Owned(text_style.clone().highlight(style))
6075 } else {
6076 Cow::Borrowed(text_style)
6077 };
6078
6079 if line.len() + line_chunk.len() > max_line_len {
6080 let mut chunk_len = max_line_len - line.len();
6081 while !line_chunk.is_char_boundary(chunk_len) {
6082 chunk_len -= 1;
6083 }
6084 line_chunk = &line_chunk[..chunk_len];
6085 line_exceeded_max_len = true;
6086 }
6087
6088 styles.push(TextRun {
6089 len: line_chunk.len(),
6090 font: text_style.font(),
6091 color: text_style.color,
6092 background_color: text_style.background_color,
6093 underline: text_style.underline,
6094 strikethrough: text_style.strikethrough,
6095 });
6096
6097 if editor_mode == EditorMode::Full {
6098 // Line wrap pads its contents with fake whitespaces,
6099 // avoid printing them
6100 let is_soft_wrapped = is_row_soft_wrapped(row);
6101 if highlighted_chunk.is_tab {
6102 if non_whitespace_added || !is_soft_wrapped {
6103 invisibles.push(Invisible::Tab {
6104 line_start_offset: line.len(),
6105 line_end_offset: line.len() + line_chunk.len(),
6106 });
6107 }
6108 } else {
6109 invisibles.extend(line_chunk.char_indices().filter_map(
6110 |(index, c)| {
6111 let is_whitespace = c.is_whitespace();
6112 non_whitespace_added |= !is_whitespace;
6113 if is_whitespace
6114 && (non_whitespace_added || !is_soft_wrapped)
6115 {
6116 Some(Invisible::Whitespace {
6117 line_offset: line.len() + index,
6118 })
6119 } else {
6120 None
6121 }
6122 },
6123 ))
6124 }
6125 }
6126
6127 line.push_str(line_chunk);
6128 }
6129 }
6130 }
6131 }
6132
6133 layouts
6134 }
6135
6136 #[allow(clippy::too_many_arguments)]
6137 fn prepaint(
6138 &mut self,
6139 line_height: Pixels,
6140 scroll_pixel_position: gpui::Point<Pixels>,
6141 row: DisplayRow,
6142 content_origin: gpui::Point<Pixels>,
6143 line_elements: &mut SmallVec<[AnyElement; 1]>,
6144 window: &mut Window,
6145 cx: &mut App,
6146 ) {
6147 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6148 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6149 for fragment in &mut self.fragments {
6150 match fragment {
6151 LineFragment::Text(line) => {
6152 fragment_origin.x += line.width;
6153 }
6154 LineFragment::Element { element, size, .. } => {
6155 let mut element = element
6156 .take()
6157 .expect("you can't prepaint LineWithInvisibles twice");
6158
6159 // Center the element vertically within the line.
6160 let mut element_origin = fragment_origin;
6161 element_origin.y += (line_height - size.height) / 2.;
6162 element.prepaint_at(element_origin, window, cx);
6163 line_elements.push(element);
6164
6165 fragment_origin.x += size.width;
6166 }
6167 }
6168 }
6169 }
6170
6171 #[allow(clippy::too_many_arguments)]
6172 fn draw(
6173 &self,
6174 layout: &EditorLayout,
6175 row: DisplayRow,
6176 content_origin: gpui::Point<Pixels>,
6177 whitespace_setting: ShowWhitespaceSetting,
6178 selection_ranges: &[Range<DisplayPoint>],
6179 window: &mut Window,
6180 cx: &mut App,
6181 ) {
6182 let line_height = layout.position_map.line_height;
6183 let line_y = line_height
6184 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6185
6186 let mut fragment_origin =
6187 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6188
6189 for fragment in &self.fragments {
6190 match fragment {
6191 LineFragment::Text(line) => {
6192 line.paint(fragment_origin, line_height, window, cx)
6193 .log_err();
6194 fragment_origin.x += line.width;
6195 }
6196 LineFragment::Element { size, .. } => {
6197 fragment_origin.x += size.width;
6198 }
6199 }
6200 }
6201
6202 self.draw_invisibles(
6203 selection_ranges,
6204 layout,
6205 content_origin,
6206 line_y,
6207 row,
6208 line_height,
6209 whitespace_setting,
6210 window,
6211 cx,
6212 );
6213 }
6214
6215 #[allow(clippy::too_many_arguments)]
6216 fn draw_invisibles(
6217 &self,
6218 selection_ranges: &[Range<DisplayPoint>],
6219 layout: &EditorLayout,
6220 content_origin: gpui::Point<Pixels>,
6221 line_y: Pixels,
6222 row: DisplayRow,
6223 line_height: Pixels,
6224 whitespace_setting: ShowWhitespaceSetting,
6225 window: &mut Window,
6226 cx: &mut App,
6227 ) {
6228 let extract_whitespace_info = |invisible: &Invisible| {
6229 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6230 Invisible::Tab {
6231 line_start_offset,
6232 line_end_offset,
6233 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6234 Invisible::Whitespace { line_offset } => {
6235 (*line_offset, line_offset + 1, &layout.space_invisible)
6236 }
6237 };
6238
6239 let x_offset = self.x_for_index(token_offset);
6240 let invisible_offset =
6241 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6242 let origin = content_origin
6243 + gpui::point(
6244 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6245 line_y,
6246 );
6247
6248 (
6249 [token_offset, token_end_offset],
6250 Box::new(move |window: &mut Window, cx: &mut App| {
6251 invisible_symbol
6252 .paint(origin, line_height, window, cx)
6253 .log_err();
6254 }),
6255 )
6256 };
6257
6258 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6259 match whitespace_setting {
6260 ShowWhitespaceSetting::None => (),
6261 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6262 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6263 let invisible_point = DisplayPoint::new(row, start as u32);
6264 if !selection_ranges
6265 .iter()
6266 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6267 {
6268 return;
6269 }
6270
6271 paint(window, cx);
6272 }),
6273
6274 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6275 // - It is a tab
6276 // - It is adjacent to an edge (start or end)
6277 // - It is adjacent to a whitespace (left or right)
6278 ShowWhitespaceSetting::Boundary => {
6279 // 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
6280 // the above cases.
6281 // Note: We zip in the original `invisibles` to check for tab equality
6282 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6283 for (([start, end], paint), invisible) in
6284 invisible_iter.zip_eq(self.invisibles.iter())
6285 {
6286 let should_render = match (&last_seen, invisible) {
6287 (_, Invisible::Tab { .. }) => true,
6288 (Some((_, last_end, _)), _) => *last_end == start,
6289 _ => false,
6290 };
6291
6292 if should_render || start == 0 || end == self.len {
6293 paint(window, cx);
6294
6295 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6296 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6297 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6298 // Note that we need to make sure that the last one is actually adjacent
6299 if !should_render_last && last_end == start {
6300 paint_last(window, cx);
6301 }
6302 }
6303 }
6304
6305 // Manually render anything within a selection
6306 let invisible_point = DisplayPoint::new(row, start as u32);
6307 if selection_ranges.iter().any(|region| {
6308 region.start <= invisible_point && invisible_point < region.end
6309 }) {
6310 paint(window, cx);
6311 }
6312
6313 last_seen = Some((should_render, end, paint));
6314 }
6315 }
6316 }
6317 }
6318
6319 pub fn x_for_index(&self, index: usize) -> Pixels {
6320 let mut fragment_start_x = Pixels::ZERO;
6321 let mut fragment_start_index = 0;
6322
6323 for fragment in &self.fragments {
6324 match fragment {
6325 LineFragment::Text(shaped_line) => {
6326 let fragment_end_index = fragment_start_index + shaped_line.len;
6327 if index < fragment_end_index {
6328 return fragment_start_x
6329 + shaped_line.x_for_index(index - fragment_start_index);
6330 }
6331 fragment_start_x += shaped_line.width;
6332 fragment_start_index = fragment_end_index;
6333 }
6334 LineFragment::Element { len, size, .. } => {
6335 let fragment_end_index = fragment_start_index + len;
6336 if index < fragment_end_index {
6337 return fragment_start_x;
6338 }
6339 fragment_start_x += size.width;
6340 fragment_start_index = fragment_end_index;
6341 }
6342 }
6343 }
6344
6345 fragment_start_x
6346 }
6347
6348 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6349 let mut fragment_start_x = Pixels::ZERO;
6350 let mut fragment_start_index = 0;
6351
6352 for fragment in &self.fragments {
6353 match fragment {
6354 LineFragment::Text(shaped_line) => {
6355 let fragment_end_x = fragment_start_x + shaped_line.width;
6356 if x < fragment_end_x {
6357 return Some(
6358 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6359 );
6360 }
6361 fragment_start_x = fragment_end_x;
6362 fragment_start_index += shaped_line.len;
6363 }
6364 LineFragment::Element { len, size, .. } => {
6365 let fragment_end_x = fragment_start_x + size.width;
6366 if x < fragment_end_x {
6367 return Some(fragment_start_index);
6368 }
6369 fragment_start_index += len;
6370 fragment_start_x = fragment_end_x;
6371 }
6372 }
6373 }
6374
6375 None
6376 }
6377
6378 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6379 let mut fragment_start_index = 0;
6380
6381 for fragment in &self.fragments {
6382 match fragment {
6383 LineFragment::Text(shaped_line) => {
6384 let fragment_end_index = fragment_start_index + shaped_line.len;
6385 if index < fragment_end_index {
6386 return shaped_line.font_id_for_index(index - fragment_start_index);
6387 }
6388 fragment_start_index = fragment_end_index;
6389 }
6390 LineFragment::Element { len, .. } => {
6391 let fragment_end_index = fragment_start_index + len;
6392 if index < fragment_end_index {
6393 return None;
6394 }
6395 fragment_start_index = fragment_end_index;
6396 }
6397 }
6398 }
6399
6400 None
6401 }
6402}
6403
6404#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6405enum Invisible {
6406 /// A tab character
6407 ///
6408 /// A tab character is internally represented by spaces (configured by the user's tab width)
6409 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6410 /// adjacency checks.
6411 Tab {
6412 line_start_offset: usize,
6413 line_end_offset: usize,
6414 },
6415 Whitespace {
6416 line_offset: usize,
6417 },
6418}
6419
6420impl EditorElement {
6421 /// Returns the rem size to use when rendering the [`EditorElement`].
6422 ///
6423 /// This allows UI elements to scale based on the `buffer_font_size`.
6424 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6425 match self.editor.read(cx).mode {
6426 EditorMode::Full => {
6427 let buffer_font_size = self.style.text.font_size;
6428 match buffer_font_size {
6429 AbsoluteLength::Pixels(pixels) => {
6430 let rem_size_scale = {
6431 // Our default UI font size is 14px on a 16px base scale.
6432 // This means the default UI font size is 0.875rems.
6433 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6434
6435 // We then determine the delta between a single rem and the default font
6436 // size scale.
6437 let default_font_size_delta = 1. - default_font_size_scale;
6438
6439 // Finally, we add this delta to 1rem to get the scale factor that
6440 // should be used to scale up the UI.
6441 1. + default_font_size_delta
6442 };
6443
6444 Some(pixels * rem_size_scale)
6445 }
6446 AbsoluteLength::Rems(rems) => {
6447 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6448 }
6449 }
6450 }
6451 // We currently use single-line and auto-height editors in UI contexts,
6452 // so we don't want to scale everything with the buffer font size, as it
6453 // ends up looking off.
6454 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6455 }
6456 }
6457}
6458
6459impl Element for EditorElement {
6460 type RequestLayoutState = ();
6461 type PrepaintState = EditorLayout;
6462
6463 fn id(&self) -> Option<ElementId> {
6464 None
6465 }
6466
6467 fn request_layout(
6468 &mut self,
6469 _: Option<&GlobalElementId>,
6470 window: &mut Window,
6471 cx: &mut App,
6472 ) -> (gpui::LayoutId, ()) {
6473 let rem_size = self.rem_size(cx);
6474 window.with_rem_size(rem_size, |window| {
6475 self.editor.update(cx, |editor, cx| {
6476 editor.set_style(self.style.clone(), window, cx);
6477
6478 let layout_id = match editor.mode {
6479 EditorMode::SingleLine { auto_width } => {
6480 let rem_size = window.rem_size();
6481
6482 let height = self.style.text.line_height_in_pixels(rem_size);
6483 if auto_width {
6484 let editor_handle = cx.entity().clone();
6485 let style = self.style.clone();
6486 window.request_measured_layout(
6487 Style::default(),
6488 move |_, _, window, cx| {
6489 let editor_snapshot = editor_handle
6490 .update(cx, |editor, cx| editor.snapshot(window, cx));
6491 let line = Self::layout_lines(
6492 DisplayRow(0)..DisplayRow(1),
6493 &editor_snapshot,
6494 &style,
6495 px(f32::MAX),
6496 |_| false, // Single lines never soft wrap
6497 window,
6498 cx,
6499 )
6500 .pop()
6501 .unwrap();
6502
6503 let font_id =
6504 window.text_system().resolve_font(&style.text.font());
6505 let font_size =
6506 style.text.font_size.to_pixels(window.rem_size());
6507 let em_width =
6508 window.text_system().em_width(font_id, font_size).unwrap();
6509
6510 size(line.width + em_width, height)
6511 },
6512 )
6513 } else {
6514 let mut style = Style::default();
6515 style.size.height = height.into();
6516 style.size.width = relative(1.).into();
6517 window.request_layout(style, None, cx)
6518 }
6519 }
6520 EditorMode::AutoHeight { max_lines } => {
6521 let editor_handle = cx.entity().clone();
6522 let max_line_number_width =
6523 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6524 window.request_measured_layout(
6525 Style::default(),
6526 move |known_dimensions, available_space, window, cx| {
6527 editor_handle
6528 .update(cx, |editor, cx| {
6529 compute_auto_height_layout(
6530 editor,
6531 max_lines,
6532 max_line_number_width,
6533 known_dimensions,
6534 available_space.width,
6535 window,
6536 cx,
6537 )
6538 })
6539 .unwrap_or_default()
6540 },
6541 )
6542 }
6543 EditorMode::Full => {
6544 let mut style = Style::default();
6545 style.size.width = relative(1.).into();
6546 style.size.height = relative(1.).into();
6547 window.request_layout(style, None, cx)
6548 }
6549 };
6550
6551 (layout_id, ())
6552 })
6553 })
6554 }
6555
6556 fn prepaint(
6557 &mut self,
6558 _: Option<&GlobalElementId>,
6559 bounds: Bounds<Pixels>,
6560 _: &mut Self::RequestLayoutState,
6561 window: &mut Window,
6562 cx: &mut App,
6563 ) -> Self::PrepaintState {
6564 let text_style = TextStyleRefinement {
6565 font_size: Some(self.style.text.font_size),
6566 line_height: Some(self.style.text.line_height),
6567 ..Default::default()
6568 };
6569 let focus_handle = self.editor.focus_handle(cx);
6570 window.set_view_id(self.editor.entity_id());
6571 window.set_focus_handle(&focus_handle, cx);
6572
6573 let rem_size = self.rem_size(cx);
6574 window.with_rem_size(rem_size, |window| {
6575 window.with_text_style(Some(text_style), |window| {
6576 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6577 let mut snapshot = self
6578 .editor
6579 .update(cx, |editor, cx| editor.snapshot(window, cx));
6580 let style = self.style.clone();
6581
6582 let font_id = window.text_system().resolve_font(&style.text.font());
6583 let font_size = style.text.font_size.to_pixels(window.rem_size());
6584 let line_height = style.text.line_height_in_pixels(window.rem_size());
6585 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6586 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6587
6588 let letter_size = size(em_width, line_height);
6589
6590 let gutter_dimensions = snapshot
6591 .gutter_dimensions(
6592 font_id,
6593 font_size,
6594 self.max_line_number_width(&snapshot, window, cx),
6595 cx,
6596 )
6597 .unwrap_or_default();
6598 let text_width = bounds.size.width - gutter_dimensions.width;
6599
6600 let editor_width =
6601 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6602
6603 snapshot = self.editor.update(cx, |editor, cx| {
6604 editor.last_bounds = Some(bounds);
6605 editor.gutter_dimensions = gutter_dimensions;
6606 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6607
6608 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6609 snapshot
6610 } else {
6611 let wrap_width = match editor.soft_wrap_mode(cx) {
6612 SoftWrap::GitDiff => None,
6613 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6614 SoftWrap::EditorWidth => Some(editor_width),
6615 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6616 SoftWrap::Bounded(column) => {
6617 Some(editor_width.min(column as f32 * em_advance))
6618 }
6619 };
6620
6621 if editor.set_wrap_width(wrap_width, cx) {
6622 editor.snapshot(window, cx)
6623 } else {
6624 snapshot
6625 }
6626 }
6627 });
6628
6629 let wrap_guides = self
6630 .editor
6631 .read(cx)
6632 .wrap_guides(cx)
6633 .iter()
6634 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6635 .collect::<SmallVec<[_; 2]>>();
6636
6637 let hitbox = window.insert_hitbox(bounds, false);
6638 let gutter_hitbox =
6639 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6640 let text_hitbox = window.insert_hitbox(
6641 Bounds {
6642 origin: gutter_hitbox.top_right(),
6643 size: size(text_width, bounds.size.height),
6644 },
6645 false,
6646 );
6647 // Offset the content_bounds from the text_bounds by the gutter margin (which
6648 // is roughly half a character wide) to make hit testing work more like how we want.
6649 let content_origin =
6650 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6651
6652 let scrollbar_bounds =
6653 Bounds::from_corners(content_origin, bounds.bottom_right());
6654
6655 let height_in_lines = scrollbar_bounds.size.height / line_height;
6656
6657 // NOTE: The max row number in the current file, minus one
6658 let max_row = snapshot.max_point().row().as_f32();
6659
6660 // NOTE: The max scroll position for the top of the window
6661 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6662 (max_row - height_in_lines + 1.).max(0.)
6663 } else {
6664 let settings = EditorSettings::get_global(cx);
6665 match settings.scroll_beyond_last_line {
6666 ScrollBeyondLastLine::OnePage => max_row,
6667 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6668 ScrollBeyondLastLine::VerticalScrollMargin => {
6669 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6670 .max(0.)
6671 }
6672 }
6673 };
6674
6675 // TODO: Autoscrolling for both axes
6676 let mut autoscroll_request = None;
6677 let mut autoscroll_containing_element = false;
6678 let mut autoscroll_horizontally = false;
6679 self.editor.update(cx, |editor, cx| {
6680 autoscroll_request = editor.autoscroll_request();
6681 autoscroll_containing_element =
6682 autoscroll_request.is_some() || editor.has_pending_selection();
6683 // TODO: Is this horizontal or vertical?!
6684 autoscroll_horizontally = editor.autoscroll_vertically(
6685 bounds,
6686 line_height,
6687 max_scroll_top,
6688 window,
6689 cx,
6690 );
6691 snapshot = editor.snapshot(window, cx);
6692 });
6693
6694 let mut scroll_position = snapshot.scroll_position();
6695 // The scroll position is a fractional point, the whole number of which represents
6696 // the top of the window in terms of display rows.
6697 let start_row = DisplayRow(scroll_position.y as u32);
6698 let max_row = snapshot.max_point().row();
6699 let end_row = cmp::min(
6700 (scroll_position.y + height_in_lines).ceil() as u32,
6701 max_row.next_row().0,
6702 );
6703 let end_row = DisplayRow(end_row);
6704
6705 let row_infos = snapshot
6706 .row_infos(start_row)
6707 .take((start_row..end_row).len())
6708 .collect::<Vec<RowInfo>>();
6709 let is_row_soft_wrapped = |row: usize| {
6710 row_infos
6711 .get(row)
6712 .map_or(true, |info| info.buffer_row.is_none())
6713 };
6714
6715 let start_anchor = if start_row == Default::default() {
6716 Anchor::min()
6717 } else {
6718 snapshot.buffer_snapshot.anchor_before(
6719 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6720 )
6721 };
6722 let end_anchor = if end_row > max_row {
6723 Anchor::max()
6724 } else {
6725 snapshot.buffer_snapshot.anchor_before(
6726 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6727 )
6728 };
6729
6730 let mut highlighted_rows = self
6731 .editor
6732 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6733
6734 let is_light = cx.theme().appearance().is_light();
6735 let use_pattern = ProjectSettings::get_global(cx)
6736 .git
6737 .hunk_style
6738 .map_or(false, |style| matches!(style, GitHunkStyleSetting::Pattern));
6739
6740 for (ix, row_info) in row_infos.iter().enumerate() {
6741 let Some(diff_status) = row_info.diff_status else {
6742 continue;
6743 };
6744
6745 let background_color = match diff_status.kind {
6746 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6747 DiffHunkStatusKind::Deleted => {
6748 cx.theme().colors().version_control_deleted
6749 }
6750 DiffHunkStatusKind::Modified => {
6751 debug_panic!("modified diff status for row info");
6752 continue;
6753 }
6754 };
6755
6756 let unstaged = diff_status.has_secondary_hunk();
6757 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6758
6759 let staged_background =
6760 solid_background(background_color.opacity(hunk_opacity));
6761 let unstaged_background = if use_pattern {
6762 pattern_slash(
6763 background_color.opacity(hunk_opacity),
6764 window.rem_size().0 * 1.125, // ~18 by default
6765 )
6766 } else {
6767 solid_background(background_color.opacity(if is_light {
6768 0.08
6769 } else {
6770 0.04
6771 }))
6772 };
6773
6774 let background = if unstaged {
6775 unstaged_background
6776 } else {
6777 staged_background
6778 };
6779
6780 highlighted_rows
6781 .entry(start_row + DisplayRow(ix as u32))
6782 .or_insert(background);
6783 }
6784
6785 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6786 start_anchor..end_anchor,
6787 &snapshot.display_snapshot,
6788 cx.theme().colors(),
6789 );
6790 let highlighted_gutter_ranges =
6791 self.editor.read(cx).gutter_highlights_in_range(
6792 start_anchor..end_anchor,
6793 &snapshot.display_snapshot,
6794 cx,
6795 );
6796
6797 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6798 start_anchor..end_anchor,
6799 &snapshot.display_snapshot,
6800 cx,
6801 );
6802
6803 let (local_selections, selected_buffer_ids): (
6804 Vec<Selection<Point>>,
6805 Vec<BufferId>,
6806 ) = self.editor.update(cx, |editor, cx| {
6807 let all_selections = editor.selections.all::<Point>(cx);
6808 let selected_buffer_ids = if editor.is_singleton(cx) {
6809 Vec::new()
6810 } else {
6811 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6812
6813 for selection in all_selections {
6814 for buffer_id in snapshot
6815 .buffer_snapshot
6816 .buffer_ids_for_range(selection.range())
6817 {
6818 if selected_buffer_ids.last() != Some(&buffer_id) {
6819 selected_buffer_ids.push(buffer_id);
6820 }
6821 }
6822 }
6823
6824 selected_buffer_ids
6825 };
6826
6827 let mut selections = editor
6828 .selections
6829 .disjoint_in_range(start_anchor..end_anchor, cx);
6830 selections.extend(editor.selections.pending(cx));
6831
6832 (selections, selected_buffer_ids)
6833 });
6834
6835 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6836 start_anchor,
6837 end_anchor,
6838 &local_selections,
6839 &snapshot,
6840 start_row,
6841 end_row,
6842 window,
6843 cx,
6844 );
6845
6846 let line_numbers = self.layout_line_numbers(
6847 Some(&gutter_hitbox),
6848 gutter_dimensions,
6849 line_height,
6850 scroll_position,
6851 start_row..end_row,
6852 &row_infos,
6853 newest_selection_head,
6854 &snapshot,
6855 window,
6856 cx,
6857 );
6858
6859 let mut crease_toggles =
6860 window.with_element_namespace("crease_toggles", |window| {
6861 self.layout_crease_toggles(
6862 start_row..end_row,
6863 &row_infos,
6864 &active_rows,
6865 &snapshot,
6866 window,
6867 cx,
6868 )
6869 });
6870 let crease_trailers =
6871 window.with_element_namespace("crease_trailers", |window| {
6872 self.layout_crease_trailers(
6873 row_infos.iter().copied(),
6874 &snapshot,
6875 window,
6876 cx,
6877 )
6878 });
6879
6880 let display_hunks = self.layout_gutter_diff_hunks(
6881 line_height,
6882 &gutter_hitbox,
6883 start_row..end_row,
6884 &snapshot,
6885 window,
6886 cx,
6887 );
6888
6889 let mut line_layouts = Self::layout_lines(
6890 start_row..end_row,
6891 &snapshot,
6892 &self.style,
6893 editor_width,
6894 is_row_soft_wrapped,
6895 window,
6896 cx,
6897 );
6898
6899 let longest_line_blame_width = self
6900 .editor
6901 .update(cx, |editor, cx| {
6902 if !editor.show_git_blame_inline {
6903 return None;
6904 }
6905 let blame = editor.blame.as_ref()?;
6906 let blame_entry = blame
6907 .update(cx, |blame, cx| {
6908 let row_infos =
6909 snapshot.row_infos(snapshot.longest_row()).next()?;
6910 blame.blame_for_rows(&[row_infos], cx).next()
6911 })
6912 .flatten()?;
6913 let mut element = render_inline_blame_entry(
6914 self.editor.clone(),
6915 blame,
6916 blame_entry,
6917 &style,
6918 cx,
6919 );
6920 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6921 Some(
6922 element
6923 .layout_as_root(AvailableSpace::min_size(), window, cx)
6924 .width
6925 + inline_blame_padding,
6926 )
6927 })
6928 .unwrap_or(Pixels::ZERO);
6929
6930 let longest_line_width = layout_line(
6931 snapshot.longest_row(),
6932 &snapshot,
6933 &style,
6934 editor_width,
6935 is_row_soft_wrapped,
6936 window,
6937 cx,
6938 )
6939 .width;
6940
6941 let scrollbar_range_data = ScrollbarRangeData::new(
6942 scrollbar_bounds,
6943 letter_size,
6944 &snapshot,
6945 longest_line_width,
6946 longest_line_blame_width,
6947 &style,
6948 editor_width,
6949 cx,
6950 );
6951
6952 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6953 let mut scroll_width = scroll_range_bounds.size.width;
6954
6955 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6956 snapshot.sticky_header_excerpt(start_row)
6957 } else {
6958 None
6959 };
6960 let sticky_header_excerpt_id =
6961 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6962
6963 let blocks = window.with_element_namespace("blocks", |window| {
6964 self.render_blocks(
6965 start_row..end_row,
6966 &snapshot,
6967 &hitbox,
6968 &text_hitbox,
6969 editor_width,
6970 &mut scroll_width,
6971 &gutter_dimensions,
6972 em_width,
6973 gutter_dimensions.full_width(),
6974 line_height,
6975 &line_layouts,
6976 &local_selections,
6977 &selected_buffer_ids,
6978 is_row_soft_wrapped,
6979 sticky_header_excerpt_id,
6980 window,
6981 cx,
6982 )
6983 });
6984 let mut blocks = match blocks {
6985 Ok(blocks) => blocks,
6986 Err(resized_blocks) => {
6987 self.editor.update(cx, |editor, cx| {
6988 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6989 });
6990 return self.prepaint(None, bounds, &mut (), window, cx);
6991 }
6992 };
6993
6994 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6995 window.with_element_namespace("blocks", |window| {
6996 self.layout_sticky_buffer_header(
6997 sticky_header_excerpt,
6998 scroll_position.y,
6999 line_height,
7000 &snapshot,
7001 &hitbox,
7002 &selected_buffer_ids,
7003 window,
7004 cx,
7005 )
7006 })
7007 });
7008
7009 let start_buffer_row =
7010 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7011 let end_buffer_row =
7012 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7013
7014 let scroll_max = point(
7015 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7016 max_row.as_f32(),
7017 );
7018
7019 self.editor.update(cx, |editor, cx| {
7020 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7021
7022 let autoscrolled = if autoscroll_horizontally {
7023 editor.autoscroll_horizontally(
7024 start_row,
7025 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7026 scroll_width,
7027 em_width,
7028 &line_layouts,
7029 cx,
7030 )
7031 } else {
7032 false
7033 };
7034
7035 if clamped || autoscrolled {
7036 snapshot = editor.snapshot(window, cx);
7037 scroll_position = snapshot.scroll_position();
7038 }
7039 });
7040
7041 let scroll_pixel_position = point(
7042 scroll_position.x * em_width,
7043 scroll_position.y * line_height,
7044 );
7045
7046 let indent_guides = self.layout_indent_guides(
7047 content_origin,
7048 text_hitbox.origin,
7049 start_buffer_row..end_buffer_row,
7050 scroll_pixel_position,
7051 line_height,
7052 &snapshot,
7053 window,
7054 cx,
7055 );
7056
7057 let crease_trailers =
7058 window.with_element_namespace("crease_trailers", |window| {
7059 self.prepaint_crease_trailers(
7060 crease_trailers,
7061 &line_layouts,
7062 line_height,
7063 content_origin,
7064 scroll_pixel_position,
7065 em_width,
7066 window,
7067 cx,
7068 )
7069 });
7070
7071 let (inline_completion_popover, inline_completion_popover_origin) = self
7072 .editor
7073 .update(cx, |editor, cx| {
7074 editor.render_edit_prediction_popover(
7075 &text_hitbox.bounds,
7076 content_origin,
7077 &snapshot,
7078 start_row..end_row,
7079 scroll_position.y,
7080 scroll_position.y + height_in_lines,
7081 &line_layouts,
7082 line_height,
7083 scroll_pixel_position,
7084 newest_selection_head,
7085 editor_width,
7086 &style,
7087 window,
7088 cx,
7089 )
7090 })
7091 .unzip();
7092
7093 let mut inline_diagnostics = self.layout_inline_diagnostics(
7094 &line_layouts,
7095 &crease_trailers,
7096 content_origin,
7097 scroll_pixel_position,
7098 inline_completion_popover_origin,
7099 start_row,
7100 end_row,
7101 line_height,
7102 em_width,
7103 &style,
7104 window,
7105 cx,
7106 );
7107
7108 let mut inline_blame = None;
7109 if let Some(newest_selection_head) = newest_selection_head {
7110 let display_row = newest_selection_head.row();
7111 if (start_row..end_row).contains(&display_row) {
7112 let line_ix = display_row.minus(start_row) as usize;
7113 let row_info = &row_infos[line_ix];
7114 let line_layout = &line_layouts[line_ix];
7115 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7116 inline_blame = self.layout_inline_blame(
7117 display_row,
7118 row_info,
7119 line_layout,
7120 crease_trailer_layout,
7121 em_width,
7122 content_origin,
7123 scroll_pixel_position,
7124 line_height,
7125 window,
7126 cx,
7127 );
7128 if inline_blame.is_some() {
7129 // Blame overrides inline diagnostics
7130 inline_diagnostics.remove(&display_row);
7131 }
7132 }
7133 }
7134
7135 let blamed_display_rows = self.layout_blame_entries(
7136 &row_infos,
7137 em_width,
7138 scroll_position,
7139 line_height,
7140 &gutter_hitbox,
7141 gutter_dimensions.git_blame_entries_width,
7142 window,
7143 cx,
7144 );
7145
7146 let scroll_max = point(
7147 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7148 max_scroll_top,
7149 );
7150
7151 self.editor.update(cx, |editor, cx| {
7152 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7153
7154 let autoscrolled = if autoscroll_horizontally {
7155 editor.autoscroll_horizontally(
7156 start_row,
7157 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7158 scroll_width,
7159 em_width,
7160 &line_layouts,
7161 cx,
7162 )
7163 } else {
7164 false
7165 };
7166
7167 if clamped || autoscrolled {
7168 snapshot = editor.snapshot(window, cx);
7169 scroll_position = snapshot.scroll_position();
7170 }
7171 });
7172
7173 let line_elements = self.prepaint_lines(
7174 start_row,
7175 &mut line_layouts,
7176 line_height,
7177 scroll_pixel_position,
7178 content_origin,
7179 window,
7180 cx,
7181 );
7182
7183 let mut block_start_rows = HashSet::default();
7184
7185 window.with_element_namespace("blocks", |window| {
7186 self.layout_blocks(
7187 &mut blocks,
7188 &mut block_start_rows,
7189 &hitbox,
7190 line_height,
7191 scroll_pixel_position,
7192 window,
7193 cx,
7194 );
7195 });
7196
7197 let cursors = self.collect_cursors(&snapshot, cx);
7198 let visible_row_range = start_row..end_row;
7199 let non_visible_cursors = cursors
7200 .iter()
7201 .any(|c| !visible_row_range.contains(&c.0.row()));
7202
7203 let visible_cursors = self.layout_visible_cursors(
7204 &snapshot,
7205 &selections,
7206 &block_start_rows,
7207 start_row..end_row,
7208 &line_layouts,
7209 &text_hitbox,
7210 content_origin,
7211 scroll_position,
7212 scroll_pixel_position,
7213 line_height,
7214 em_width,
7215 em_advance,
7216 autoscroll_containing_element,
7217 window,
7218 cx,
7219 );
7220
7221 let scrollbars_layout = self.layout_scrollbars(
7222 &snapshot,
7223 scrollbar_range_data,
7224 scroll_position,
7225 non_visible_cursors,
7226 window,
7227 cx,
7228 );
7229
7230 let gutter_settings = EditorSettings::get_global(cx).gutter;
7231
7232 let mut code_actions_indicator = None;
7233 if let Some(newest_selection_head) = newest_selection_head {
7234 let newest_selection_point =
7235 newest_selection_head.to_point(&snapshot.display_snapshot);
7236
7237 if (start_row..end_row).contains(&newest_selection_head.row()) {
7238 self.layout_cursor_popovers(
7239 line_height,
7240 &text_hitbox,
7241 content_origin,
7242 start_row,
7243 scroll_pixel_position,
7244 &line_layouts,
7245 newest_selection_head,
7246 newest_selection_point,
7247 &style,
7248 window,
7249 cx,
7250 );
7251
7252 let show_code_actions = snapshot
7253 .show_code_actions
7254 .unwrap_or(gutter_settings.code_actions);
7255 if show_code_actions {
7256 let newest_selection_point =
7257 newest_selection_head.to_point(&snapshot.display_snapshot);
7258 if !snapshot
7259 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7260 {
7261 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7262 MultiBufferRow(newest_selection_point.row),
7263 );
7264 if let Some((buffer, range)) = buffer {
7265 let buffer_id = buffer.remote_id();
7266 let row = range.start.row;
7267 let has_test_indicator = self
7268 .editor
7269 .read(cx)
7270 .tasks
7271 .contains_key(&(buffer_id, row));
7272
7273 if !has_test_indicator {
7274 code_actions_indicator = self
7275 .layout_code_actions_indicator(
7276 line_height,
7277 newest_selection_head,
7278 scroll_pixel_position,
7279 &gutter_dimensions,
7280 &gutter_hitbox,
7281 &display_hunks,
7282 window,
7283 cx,
7284 );
7285 }
7286 }
7287 }
7288 }
7289 }
7290 }
7291
7292 self.layout_gutter_menu(
7293 line_height,
7294 &text_hitbox,
7295 content_origin,
7296 scroll_pixel_position,
7297 gutter_dimensions.width - gutter_dimensions.left_padding,
7298 window,
7299 cx,
7300 );
7301
7302 let test_indicators = if gutter_settings.runnables {
7303 self.layout_run_indicators(
7304 line_height,
7305 start_row..end_row,
7306 scroll_pixel_position,
7307 &gutter_dimensions,
7308 &gutter_hitbox,
7309 &display_hunks,
7310 &snapshot,
7311 window,
7312 cx,
7313 )
7314 } else {
7315 Vec::new()
7316 };
7317
7318 self.layout_signature_help(
7319 &hitbox,
7320 content_origin,
7321 scroll_pixel_position,
7322 newest_selection_head,
7323 start_row,
7324 &line_layouts,
7325 line_height,
7326 em_width,
7327 window,
7328 cx,
7329 );
7330
7331 if !cx.has_active_drag() {
7332 self.layout_hover_popovers(
7333 &snapshot,
7334 &hitbox,
7335 &text_hitbox,
7336 start_row..end_row,
7337 content_origin,
7338 scroll_pixel_position,
7339 &line_layouts,
7340 line_height,
7341 em_width,
7342 window,
7343 cx,
7344 );
7345 }
7346
7347 let mouse_context_menu = self.layout_mouse_context_menu(
7348 &snapshot,
7349 start_row..end_row,
7350 content_origin,
7351 window,
7352 cx,
7353 );
7354
7355 window.with_element_namespace("crease_toggles", |window| {
7356 self.prepaint_crease_toggles(
7357 &mut crease_toggles,
7358 line_height,
7359 &gutter_dimensions,
7360 gutter_settings,
7361 scroll_pixel_position,
7362 &gutter_hitbox,
7363 window,
7364 cx,
7365 )
7366 });
7367
7368 let invisible_symbol_font_size = font_size / 2.;
7369 let tab_invisible = window
7370 .text_system()
7371 .shape_line(
7372 "→".into(),
7373 invisible_symbol_font_size,
7374 &[TextRun {
7375 len: "→".len(),
7376 font: self.style.text.font(),
7377 color: cx.theme().colors().editor_invisible,
7378 background_color: None,
7379 underline: None,
7380 strikethrough: None,
7381 }],
7382 )
7383 .unwrap();
7384 let space_invisible = window
7385 .text_system()
7386 .shape_line(
7387 "•".into(),
7388 invisible_symbol_font_size,
7389 &[TextRun {
7390 len: "•".len(),
7391 font: self.style.text.font(),
7392 color: cx.theme().colors().editor_invisible,
7393 background_color: None,
7394 underline: None,
7395 strikethrough: None,
7396 }],
7397 )
7398 .unwrap();
7399
7400 let mode = snapshot.mode;
7401
7402 let position_map = Rc::new(PositionMap {
7403 size: bounds.size,
7404 visible_row_range,
7405 scroll_pixel_position,
7406 scroll_max,
7407 line_layouts,
7408 line_height,
7409 em_width,
7410 em_advance,
7411 snapshot,
7412 gutter_hitbox: gutter_hitbox.clone(),
7413 text_hitbox: text_hitbox.clone(),
7414 });
7415
7416 self.editor.update(cx, |editor, _| {
7417 editor.last_position_map = Some(position_map.clone())
7418 });
7419
7420 let diff_hunk_controls = self.layout_diff_hunk_controls(
7421 start_row..end_row,
7422 &row_infos,
7423 &text_hitbox,
7424 &position_map,
7425 newest_selection_head,
7426 line_height,
7427 scroll_pixel_position,
7428 &display_hunks,
7429 self.editor.clone(),
7430 window,
7431 cx,
7432 );
7433
7434 EditorLayout {
7435 mode,
7436 position_map,
7437 visible_display_row_range: start_row..end_row,
7438 wrap_guides,
7439 indent_guides,
7440 hitbox,
7441 gutter_hitbox,
7442 display_hunks,
7443 content_origin,
7444 scrollbars_layout,
7445 active_rows,
7446 highlighted_rows,
7447 highlighted_ranges,
7448 highlighted_gutter_ranges,
7449 redacted_ranges,
7450 line_elements,
7451 line_numbers,
7452 blamed_display_rows,
7453 inline_diagnostics,
7454 inline_blame,
7455 blocks,
7456 cursors,
7457 visible_cursors,
7458 selections,
7459 inline_completion_popover,
7460 diff_hunk_controls,
7461 mouse_context_menu,
7462 test_indicators,
7463 code_actions_indicator,
7464 crease_toggles,
7465 crease_trailers,
7466 tab_invisible,
7467 space_invisible,
7468 sticky_buffer_header,
7469 }
7470 })
7471 })
7472 })
7473 }
7474
7475 fn paint(
7476 &mut self,
7477 _: Option<&GlobalElementId>,
7478 bounds: Bounds<gpui::Pixels>,
7479 _: &mut Self::RequestLayoutState,
7480 layout: &mut Self::PrepaintState,
7481 window: &mut Window,
7482 cx: &mut App,
7483 ) {
7484 let focus_handle = self.editor.focus_handle(cx);
7485 let key_context = self
7486 .editor
7487 .update(cx, |editor, cx| editor.key_context(window, cx));
7488
7489 window.set_key_context(key_context);
7490 window.handle_input(
7491 &focus_handle,
7492 ElementInputHandler::new(bounds, self.editor.clone()),
7493 cx,
7494 );
7495 self.register_actions(window, cx);
7496 self.register_key_listeners(window, cx, layout);
7497
7498 let text_style = TextStyleRefinement {
7499 font_size: Some(self.style.text.font_size),
7500 line_height: Some(self.style.text.line_height),
7501 ..Default::default()
7502 };
7503 let rem_size = self.rem_size(cx);
7504 window.with_rem_size(rem_size, |window| {
7505 window.with_text_style(Some(text_style), |window| {
7506 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7507 self.paint_mouse_listeners(layout, window, cx);
7508 self.paint_background(layout, window, cx);
7509 self.paint_indent_guides(layout, window, cx);
7510
7511 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7512 self.paint_blamed_display_rows(layout, window, cx);
7513 self.paint_line_numbers(layout, window, cx);
7514 }
7515
7516 self.paint_text(layout, window, cx);
7517
7518 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7519 self.paint_gutter_highlights(layout, window, cx);
7520 self.paint_gutter_indicators(layout, window, cx);
7521 }
7522
7523 if !layout.blocks.is_empty() {
7524 window.with_element_namespace("blocks", |window| {
7525 self.paint_blocks(layout, window, cx);
7526 });
7527 }
7528
7529 window.with_element_namespace("blocks", |window| {
7530 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7531 sticky_header.paint(window, cx)
7532 }
7533 });
7534
7535 self.paint_scrollbars(layout, window, cx);
7536 self.paint_inline_completion_popover(layout, window, cx);
7537 self.paint_mouse_context_menu(layout, window, cx);
7538 });
7539 })
7540 })
7541 }
7542}
7543
7544pub(super) fn gutter_bounds(
7545 editor_bounds: Bounds<Pixels>,
7546 gutter_dimensions: GutterDimensions,
7547) -> Bounds<Pixels> {
7548 Bounds {
7549 origin: editor_bounds.origin,
7550 size: size(gutter_dimensions.width, editor_bounds.size.height),
7551 }
7552}
7553
7554struct ScrollbarRangeData {
7555 scrollbar_bounds: Bounds<Pixels>,
7556 scroll_range: Bounds<Pixels>,
7557 letter_size: Size<Pixels>,
7558}
7559
7560impl ScrollbarRangeData {
7561 #[allow(clippy::too_many_arguments)]
7562 pub fn new(
7563 scrollbar_bounds: Bounds<Pixels>,
7564 letter_size: Size<Pixels>,
7565 snapshot: &EditorSnapshot,
7566 longest_line_width: Pixels,
7567 longest_line_blame_width: Pixels,
7568 style: &EditorStyle,
7569 editor_width: Pixels,
7570 cx: &mut App,
7571 ) -> ScrollbarRangeData {
7572 // TODO: Simplify this function down, it requires a lot of parameters
7573 let max_row = snapshot.max_point().row();
7574 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7575
7576 let settings = EditorSettings::get_global(cx);
7577 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7578 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7579 ScrollBeyondLastLine::Off => px(1.),
7580 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7581 };
7582
7583 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7584 letter_size.width + style.scrollbar_width
7585 } else {
7586 px(0.0)
7587 };
7588
7589 let overscroll = size(
7590 right_margin + longest_line_blame_width,
7591 letter_size.height * scroll_beyond_last_line,
7592 );
7593
7594 let scroll_range = Bounds {
7595 origin: scrollbar_bounds.origin,
7596 size: text_bounds_size + overscroll,
7597 };
7598
7599 ScrollbarRangeData {
7600 scrollbar_bounds,
7601 scroll_range,
7602 letter_size,
7603 }
7604 }
7605}
7606
7607impl IntoElement for EditorElement {
7608 type Element = Self;
7609
7610 fn into_element(self) -> Self::Element {
7611 self
7612 }
7613}
7614
7615pub struct EditorLayout {
7616 position_map: Rc<PositionMap>,
7617 hitbox: Hitbox,
7618 gutter_hitbox: Hitbox,
7619 content_origin: gpui::Point<Pixels>,
7620 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7621 mode: EditorMode,
7622 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7623 indent_guides: Option<Vec<IndentGuideLayout>>,
7624 visible_display_row_range: Range<DisplayRow>,
7625 active_rows: BTreeMap<DisplayRow, bool>,
7626 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7627 line_elements: SmallVec<[AnyElement; 1]>,
7628 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7629 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7630 blamed_display_rows: Option<Vec<AnyElement>>,
7631 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7632 inline_blame: Option<AnyElement>,
7633 blocks: Vec<BlockLayout>,
7634 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7635 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7636 redacted_ranges: Vec<Range<DisplayPoint>>,
7637 cursors: Vec<(DisplayPoint, Hsla)>,
7638 visible_cursors: Vec<CursorLayout>,
7639 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7640 code_actions_indicator: Option<AnyElement>,
7641 test_indicators: Vec<AnyElement>,
7642 crease_toggles: Vec<Option<AnyElement>>,
7643 diff_hunk_controls: Vec<AnyElement>,
7644 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7645 inline_completion_popover: Option<AnyElement>,
7646 mouse_context_menu: Option<AnyElement>,
7647 tab_invisible: ShapedLine,
7648 space_invisible: ShapedLine,
7649 sticky_buffer_header: Option<AnyElement>,
7650}
7651
7652impl EditorLayout {
7653 fn line_end_overshoot(&self) -> Pixels {
7654 0.15 * self.position_map.line_height
7655 }
7656}
7657
7658struct LineNumberLayout {
7659 shaped_line: ShapedLine,
7660 hitbox: Option<Hitbox>,
7661 display_row: DisplayRow,
7662}
7663
7664struct ColoredRange<T> {
7665 start: T,
7666 end: T,
7667 color: Hsla,
7668}
7669
7670#[derive(Clone)]
7671struct ScrollbarLayout {
7672 hitbox: Hitbox,
7673 visible_range: Range<f32>,
7674 visible: bool,
7675 text_unit_size: Pixels,
7676 thumb_size: Pixels,
7677 axis: Axis,
7678}
7679
7680impl ScrollbarLayout {
7681 const BORDER_WIDTH: Pixels = px(1.0);
7682 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7683 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7684 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7685
7686 fn thumb_bounds(&self) -> Bounds<Pixels> {
7687 match self.axis {
7688 Axis::Vertical => {
7689 let thumb_top = self.y_for_row(self.visible_range.start);
7690 let thumb_bottom = thumb_top + self.thumb_size;
7691 Bounds::from_corners(
7692 point(self.hitbox.left(), thumb_top),
7693 point(self.hitbox.right(), thumb_bottom),
7694 )
7695 }
7696 Axis::Horizontal => {
7697 let thumb_left =
7698 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7699 let thumb_right = thumb_left + self.thumb_size;
7700 Bounds::from_corners(
7701 point(thumb_left, self.hitbox.top()),
7702 point(thumb_right, self.hitbox.bottom()),
7703 )
7704 }
7705 }
7706 }
7707
7708 fn y_for_row(&self, row: f32) -> Pixels {
7709 self.hitbox.top() + row * self.text_unit_size
7710 }
7711
7712 fn marker_quads_for_ranges(
7713 &self,
7714 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7715 column: Option<usize>,
7716 ) -> Vec<PaintQuad> {
7717 struct MinMax {
7718 min: Pixels,
7719 max: Pixels,
7720 }
7721 let (x_range, height_limit) = if let Some(column) = column {
7722 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7723 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7724 let end = start + column_width;
7725 (
7726 Range { start, end },
7727 MinMax {
7728 min: Self::MIN_MARKER_HEIGHT,
7729 max: px(f32::MAX),
7730 },
7731 )
7732 } else {
7733 (
7734 Range {
7735 start: Self::BORDER_WIDTH,
7736 end: self.hitbox.size.width,
7737 },
7738 MinMax {
7739 min: Self::LINE_MARKER_HEIGHT,
7740 max: Self::LINE_MARKER_HEIGHT,
7741 },
7742 )
7743 };
7744
7745 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7746 let mut pixel_ranges = row_ranges
7747 .into_iter()
7748 .map(|range| {
7749 let start_y = row_to_y(range.start);
7750 let end_y = row_to_y(range.end)
7751 + self
7752 .text_unit_size
7753 .max(height_limit.min)
7754 .min(height_limit.max);
7755 ColoredRange {
7756 start: start_y,
7757 end: end_y,
7758 color: range.color,
7759 }
7760 })
7761 .peekable();
7762
7763 let mut quads = Vec::new();
7764 while let Some(mut pixel_range) = pixel_ranges.next() {
7765 while let Some(next_pixel_range) = pixel_ranges.peek() {
7766 if pixel_range.end >= next_pixel_range.start - px(1.0)
7767 && pixel_range.color == next_pixel_range.color
7768 {
7769 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7770 pixel_ranges.next();
7771 } else {
7772 break;
7773 }
7774 }
7775
7776 let bounds = Bounds::from_corners(
7777 point(x_range.start, pixel_range.start),
7778 point(x_range.end, pixel_range.end),
7779 );
7780 quads.push(quad(
7781 bounds,
7782 Corners::default(),
7783 pixel_range.color,
7784 Edges::default(),
7785 Hsla::transparent_black(),
7786 ));
7787 }
7788
7789 quads
7790 }
7791}
7792
7793struct CreaseTrailerLayout {
7794 element: AnyElement,
7795 bounds: Bounds<Pixels>,
7796}
7797
7798pub(crate) struct PositionMap {
7799 pub size: Size<Pixels>,
7800 pub line_height: Pixels,
7801 pub scroll_pixel_position: gpui::Point<Pixels>,
7802 pub scroll_max: gpui::Point<f32>,
7803 pub em_width: Pixels,
7804 pub em_advance: Pixels,
7805 pub visible_row_range: Range<DisplayRow>,
7806 pub line_layouts: Vec<LineWithInvisibles>,
7807 pub snapshot: EditorSnapshot,
7808 pub text_hitbox: Hitbox,
7809 pub gutter_hitbox: Hitbox,
7810}
7811
7812#[derive(Debug, Copy, Clone)]
7813pub struct PointForPosition {
7814 pub previous_valid: DisplayPoint,
7815 pub next_valid: DisplayPoint,
7816 pub exact_unclipped: DisplayPoint,
7817 pub column_overshoot_after_line_end: u32,
7818}
7819
7820impl PointForPosition {
7821 pub fn as_valid(&self) -> Option<DisplayPoint> {
7822 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7823 Some(self.previous_valid)
7824 } else {
7825 None
7826 }
7827 }
7828}
7829
7830impl PositionMap {
7831 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7832 let text_bounds = self.text_hitbox.bounds;
7833 let scroll_position = self.snapshot.scroll_position();
7834 let position = position - text_bounds.origin;
7835 let y = position.y.max(px(0.)).min(self.size.height);
7836 let x = position.x + (scroll_position.x * self.em_width);
7837 let row = ((y / self.line_height) + scroll_position.y) as u32;
7838
7839 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7840 .line_layouts
7841 .get(row as usize - scroll_position.y as usize)
7842 {
7843 if let Some(ix) = line.index_for_x(x) {
7844 (ix as u32, px(0.))
7845 } else {
7846 (line.len as u32, px(0.).max(x - line.width))
7847 }
7848 } else {
7849 (0, x)
7850 };
7851
7852 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7853 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7854 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7855
7856 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7857 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7858 PointForPosition {
7859 previous_valid,
7860 next_valid,
7861 exact_unclipped,
7862 column_overshoot_after_line_end,
7863 }
7864 }
7865}
7866
7867struct BlockLayout {
7868 id: BlockId,
7869 row: Option<DisplayRow>,
7870 element: AnyElement,
7871 available_space: Size<AvailableSpace>,
7872 style: BlockStyle,
7873}
7874
7875pub fn layout_line(
7876 row: DisplayRow,
7877 snapshot: &EditorSnapshot,
7878 style: &EditorStyle,
7879 text_width: Pixels,
7880 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7881 window: &mut Window,
7882 cx: &mut App,
7883) -> LineWithInvisibles {
7884 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7885 LineWithInvisibles::from_chunks(
7886 chunks,
7887 &style,
7888 MAX_LINE_LEN,
7889 1,
7890 snapshot.mode,
7891 text_width,
7892 is_row_soft_wrapped,
7893 window,
7894 cx,
7895 )
7896 .pop()
7897 .unwrap()
7898}
7899
7900#[derive(Debug)]
7901pub struct IndentGuideLayout {
7902 origin: gpui::Point<Pixels>,
7903 length: Pixels,
7904 single_indent_width: Pixels,
7905 depth: u32,
7906 active: bool,
7907 settings: IndentGuideSettings,
7908}
7909
7910pub struct CursorLayout {
7911 origin: gpui::Point<Pixels>,
7912 block_width: Pixels,
7913 line_height: Pixels,
7914 color: Hsla,
7915 shape: CursorShape,
7916 block_text: Option<ShapedLine>,
7917 cursor_name: Option<AnyElement>,
7918}
7919
7920#[derive(Debug)]
7921pub struct CursorName {
7922 string: SharedString,
7923 color: Hsla,
7924 is_top_row: bool,
7925}
7926
7927impl CursorLayout {
7928 pub fn new(
7929 origin: gpui::Point<Pixels>,
7930 block_width: Pixels,
7931 line_height: Pixels,
7932 color: Hsla,
7933 shape: CursorShape,
7934 block_text: Option<ShapedLine>,
7935 ) -> CursorLayout {
7936 CursorLayout {
7937 origin,
7938 block_width,
7939 line_height,
7940 color,
7941 shape,
7942 block_text,
7943 cursor_name: None,
7944 }
7945 }
7946
7947 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7948 Bounds {
7949 origin: self.origin + origin,
7950 size: size(self.block_width, self.line_height),
7951 }
7952 }
7953
7954 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7955 match self.shape {
7956 CursorShape::Bar => Bounds {
7957 origin: self.origin + origin,
7958 size: size(px(2.0), self.line_height),
7959 },
7960 CursorShape::Block | CursorShape::Hollow => Bounds {
7961 origin: self.origin + origin,
7962 size: size(self.block_width, self.line_height),
7963 },
7964 CursorShape::Underline => Bounds {
7965 origin: self.origin
7966 + origin
7967 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7968 size: size(self.block_width, px(2.0)),
7969 },
7970 }
7971 }
7972
7973 pub fn layout(
7974 &mut self,
7975 origin: gpui::Point<Pixels>,
7976 cursor_name: Option<CursorName>,
7977 window: &mut Window,
7978 cx: &mut App,
7979 ) {
7980 if let Some(cursor_name) = cursor_name {
7981 let bounds = self.bounds(origin);
7982 let text_size = self.line_height / 1.5;
7983
7984 let name_origin = if cursor_name.is_top_row {
7985 point(bounds.right() - px(1.), bounds.top())
7986 } else {
7987 match self.shape {
7988 CursorShape::Bar => point(
7989 bounds.right() - px(2.),
7990 bounds.top() - text_size / 2. - px(1.),
7991 ),
7992 _ => point(
7993 bounds.right() - px(1.),
7994 bounds.top() - text_size / 2. - px(1.),
7995 ),
7996 }
7997 };
7998 let mut name_element = div()
7999 .bg(self.color)
8000 .text_size(text_size)
8001 .px_0p5()
8002 .line_height(text_size + px(2.))
8003 .text_color(cursor_name.color)
8004 .child(cursor_name.string.clone())
8005 .into_any_element();
8006
8007 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8008
8009 self.cursor_name = Some(name_element);
8010 }
8011 }
8012
8013 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8014 let bounds = self.bounds(origin);
8015
8016 //Draw background or border quad
8017 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8018 outline(bounds, self.color)
8019 } else {
8020 fill(bounds, self.color)
8021 };
8022
8023 if let Some(name) = &mut self.cursor_name {
8024 name.paint(window, cx);
8025 }
8026
8027 window.paint_quad(cursor);
8028
8029 if let Some(block_text) = &self.block_text {
8030 block_text
8031 .paint(self.origin + origin, self.line_height, window, cx)
8032 .log_err();
8033 }
8034 }
8035
8036 pub fn shape(&self) -> CursorShape {
8037 self.shape
8038 }
8039}
8040
8041#[derive(Debug)]
8042pub struct HighlightedRange {
8043 pub start_y: Pixels,
8044 pub line_height: Pixels,
8045 pub lines: Vec<HighlightedRangeLine>,
8046 pub color: Hsla,
8047 pub corner_radius: Pixels,
8048}
8049
8050#[derive(Debug)]
8051pub struct HighlightedRangeLine {
8052 pub start_x: Pixels,
8053 pub end_x: Pixels,
8054}
8055
8056impl HighlightedRange {
8057 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8058 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8059 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8060 self.paint_lines(
8061 self.start_y + self.line_height,
8062 &self.lines[1..],
8063 bounds,
8064 window,
8065 );
8066 } else {
8067 self.paint_lines(self.start_y, &self.lines, bounds, window);
8068 }
8069 }
8070
8071 fn paint_lines(
8072 &self,
8073 start_y: Pixels,
8074 lines: &[HighlightedRangeLine],
8075 _bounds: Bounds<Pixels>,
8076 window: &mut Window,
8077 ) {
8078 if lines.is_empty() {
8079 return;
8080 }
8081
8082 let first_line = lines.first().unwrap();
8083 let last_line = lines.last().unwrap();
8084
8085 let first_top_left = point(first_line.start_x, start_y);
8086 let first_top_right = point(first_line.end_x, start_y);
8087
8088 let curve_height = point(Pixels::ZERO, self.corner_radius);
8089 let curve_width = |start_x: Pixels, end_x: Pixels| {
8090 let max = (end_x - start_x) / 2.;
8091 let width = if max < self.corner_radius {
8092 max
8093 } else {
8094 self.corner_radius
8095 };
8096
8097 point(width, Pixels::ZERO)
8098 };
8099
8100 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8101 let mut builder = gpui::PathBuilder::fill();
8102 builder.move_to(first_top_right - top_curve_width);
8103 builder.curve_to(first_top_right + curve_height, first_top_right);
8104
8105 let mut iter = lines.iter().enumerate().peekable();
8106 while let Some((ix, line)) = iter.next() {
8107 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8108
8109 if let Some((_, next_line)) = iter.peek() {
8110 let next_top_right = point(next_line.end_x, bottom_right.y);
8111
8112 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8113 Ordering::Equal => {
8114 builder.line_to(bottom_right);
8115 }
8116 Ordering::Less => {
8117 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8118 builder.line_to(bottom_right - curve_height);
8119 if self.corner_radius > Pixels::ZERO {
8120 builder.curve_to(bottom_right - curve_width, bottom_right);
8121 }
8122 builder.line_to(next_top_right + curve_width);
8123 if self.corner_radius > Pixels::ZERO {
8124 builder.curve_to(next_top_right + curve_height, next_top_right);
8125 }
8126 }
8127 Ordering::Greater => {
8128 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8129 builder.line_to(bottom_right - curve_height);
8130 if self.corner_radius > Pixels::ZERO {
8131 builder.curve_to(bottom_right + curve_width, bottom_right);
8132 }
8133 builder.line_to(next_top_right - curve_width);
8134 if self.corner_radius > Pixels::ZERO {
8135 builder.curve_to(next_top_right + curve_height, next_top_right);
8136 }
8137 }
8138 }
8139 } else {
8140 let curve_width = curve_width(line.start_x, line.end_x);
8141 builder.line_to(bottom_right - curve_height);
8142 if self.corner_radius > Pixels::ZERO {
8143 builder.curve_to(bottom_right - curve_width, bottom_right);
8144 }
8145
8146 let bottom_left = point(line.start_x, bottom_right.y);
8147 builder.line_to(bottom_left + curve_width);
8148 if self.corner_radius > Pixels::ZERO {
8149 builder.curve_to(bottom_left - curve_height, bottom_left);
8150 }
8151 }
8152 }
8153
8154 if first_line.start_x > last_line.start_x {
8155 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8156 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8157 builder.line_to(second_top_left + curve_height);
8158 if self.corner_radius > Pixels::ZERO {
8159 builder.curve_to(second_top_left + curve_width, second_top_left);
8160 }
8161 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8162 builder.line_to(first_bottom_left - curve_width);
8163 if self.corner_radius > Pixels::ZERO {
8164 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8165 }
8166 }
8167
8168 builder.line_to(first_top_left + curve_height);
8169 if self.corner_radius > Pixels::ZERO {
8170 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8171 }
8172 builder.line_to(first_top_right - top_curve_width);
8173
8174 if let Ok(path) = builder.build() {
8175 window.paint_path(path, self.color);
8176 }
8177 }
8178}
8179
8180enum CursorPopoverType {
8181 CodeContextMenu,
8182 EditPrediction,
8183}
8184
8185pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8186 (delta.pow(1.5) / 100.0).into()
8187}
8188
8189fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8190 (delta.pow(1.2) / 300.0).into()
8191}
8192
8193pub fn register_action<T: Action>(
8194 editor: &Entity<Editor>,
8195 window: &mut Window,
8196 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8197) {
8198 let editor = editor.clone();
8199 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8200 let action = action.downcast_ref().unwrap();
8201 if phase == DispatchPhase::Bubble {
8202 editor.update(cx, |editor, cx| {
8203 listener(editor, action, window, cx);
8204 })
8205 }
8206 })
8207}
8208
8209fn compute_auto_height_layout(
8210 editor: &mut Editor,
8211 max_lines: usize,
8212 max_line_number_width: Pixels,
8213 known_dimensions: Size<Option<Pixels>>,
8214 available_width: AvailableSpace,
8215 window: &mut Window,
8216 cx: &mut Context<Editor>,
8217) -> Option<Size<Pixels>> {
8218 let width = known_dimensions.width.or({
8219 if let AvailableSpace::Definite(available_width) = available_width {
8220 Some(available_width)
8221 } else {
8222 None
8223 }
8224 })?;
8225 if let Some(height) = known_dimensions.height {
8226 return Some(size(width, height));
8227 }
8228
8229 let style = editor.style.as_ref().unwrap();
8230 let font_id = window.text_system().resolve_font(&style.text.font());
8231 let font_size = style.text.font_size.to_pixels(window.rem_size());
8232 let line_height = style.text.line_height_in_pixels(window.rem_size());
8233 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8234
8235 let mut snapshot = editor.snapshot(window, cx);
8236 let gutter_dimensions = snapshot
8237 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8238 .unwrap_or_default();
8239
8240 editor.gutter_dimensions = gutter_dimensions;
8241 let text_width = width - gutter_dimensions.width;
8242 let overscroll = size(em_width, px(0.));
8243
8244 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8245 if editor.set_wrap_width(Some(editor_width), cx) {
8246 snapshot = editor.snapshot(window, cx);
8247 }
8248
8249 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8250 let height = scroll_height
8251 .max(line_height)
8252 .min(line_height * max_lines as f32);
8253
8254 Some(size(width, height))
8255}
8256
8257#[cfg(test)]
8258mod tests {
8259 use super::*;
8260 use crate::{
8261 display_map::{BlockPlacement, BlockProperties},
8262 editor_tests::{init_test, update_test_language_settings},
8263 Editor, MultiBuffer,
8264 };
8265 use gpui::{TestAppContext, VisualTestContext};
8266 use language::language_settings;
8267 use log::info;
8268 use std::num::NonZeroU32;
8269 use util::test::sample_text;
8270
8271 #[gpui::test]
8272 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8273 init_test(cx, |_| {});
8274 let window = cx.add_window(|window, cx| {
8275 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8276 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8277 });
8278
8279 let editor = window.root(cx).unwrap();
8280 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8281 let line_height = window
8282 .update(cx, |_, window, _| {
8283 style.text.line_height_in_pixels(window.rem_size())
8284 })
8285 .unwrap();
8286 let element = EditorElement::new(&editor, style);
8287 let snapshot = window
8288 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8289 .unwrap();
8290
8291 let layouts = cx
8292 .update_window(*window, |_, window, cx| {
8293 element.layout_line_numbers(
8294 None,
8295 GutterDimensions {
8296 left_padding: Pixels::ZERO,
8297 right_padding: Pixels::ZERO,
8298 width: px(30.0),
8299 margin: Pixels::ZERO,
8300 git_blame_entries_width: None,
8301 },
8302 line_height,
8303 gpui::Point::default(),
8304 DisplayRow(0)..DisplayRow(6),
8305 &(0..6)
8306 .map(|row| RowInfo {
8307 buffer_row: Some(row),
8308 ..Default::default()
8309 })
8310 .collect::<Vec<_>>(),
8311 Some(DisplayPoint::new(DisplayRow(0), 0)),
8312 &snapshot,
8313 window,
8314 cx,
8315 )
8316 })
8317 .unwrap();
8318 assert_eq!(layouts.len(), 6);
8319
8320 let relative_rows = window
8321 .update(cx, |editor, window, cx| {
8322 let snapshot = editor.snapshot(window, cx);
8323 element.calculate_relative_line_numbers(
8324 &snapshot,
8325 &(DisplayRow(0)..DisplayRow(6)),
8326 Some(DisplayRow(3)),
8327 )
8328 })
8329 .unwrap();
8330 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8331 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8332 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8333 // current line has no relative number
8334 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8335 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8336
8337 // works if cursor is before screen
8338 let relative_rows = window
8339 .update(cx, |editor, window, cx| {
8340 let snapshot = editor.snapshot(window, cx);
8341 element.calculate_relative_line_numbers(
8342 &snapshot,
8343 &(DisplayRow(3)..DisplayRow(6)),
8344 Some(DisplayRow(1)),
8345 )
8346 })
8347 .unwrap();
8348 assert_eq!(relative_rows.len(), 3);
8349 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8350 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8351 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8352
8353 // works if cursor is after screen
8354 let relative_rows = window
8355 .update(cx, |editor, window, cx| {
8356 let snapshot = editor.snapshot(window, cx);
8357 element.calculate_relative_line_numbers(
8358 &snapshot,
8359 &(DisplayRow(0)..DisplayRow(3)),
8360 Some(DisplayRow(6)),
8361 )
8362 })
8363 .unwrap();
8364 assert_eq!(relative_rows.len(), 3);
8365 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8366 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8367 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8368 }
8369
8370 #[gpui::test]
8371 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8372 init_test(cx, |_| {});
8373
8374 let window = cx.add_window(|window, cx| {
8375 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8376 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8377 });
8378 let cx = &mut VisualTestContext::from_window(*window, cx);
8379 let editor = window.root(cx).unwrap();
8380 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8381
8382 window
8383 .update(cx, |editor, window, cx| {
8384 editor.cursor_shape = CursorShape::Block;
8385 editor.change_selections(None, window, cx, |s| {
8386 s.select_ranges([
8387 Point::new(0, 0)..Point::new(1, 0),
8388 Point::new(3, 2)..Point::new(3, 3),
8389 Point::new(5, 6)..Point::new(6, 0),
8390 ]);
8391 });
8392 })
8393 .unwrap();
8394
8395 let (_, state) = cx.draw(
8396 point(px(500.), px(500.)),
8397 size(px(500.), px(500.)),
8398 |_, _| EditorElement::new(&editor, style),
8399 );
8400
8401 assert_eq!(state.selections.len(), 1);
8402 let local_selections = &state.selections[0].1;
8403 assert_eq!(local_selections.len(), 3);
8404 // moves cursor back one line
8405 assert_eq!(
8406 local_selections[0].head,
8407 DisplayPoint::new(DisplayRow(0), 6)
8408 );
8409 assert_eq!(
8410 local_selections[0].range,
8411 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8412 );
8413
8414 // moves cursor back one column
8415 assert_eq!(
8416 local_selections[1].range,
8417 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8418 );
8419 assert_eq!(
8420 local_selections[1].head,
8421 DisplayPoint::new(DisplayRow(3), 2)
8422 );
8423
8424 // leaves cursor on the max point
8425 assert_eq!(
8426 local_selections[2].range,
8427 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8428 );
8429 assert_eq!(
8430 local_selections[2].head,
8431 DisplayPoint::new(DisplayRow(6), 0)
8432 );
8433
8434 // active lines does not include 1 (even though the range of the selection does)
8435 assert_eq!(
8436 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8437 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8438 );
8439
8440 // multi-buffer support
8441 // in DisplayPoint coordinates, this is what we're dealing with:
8442 // 0: [[file
8443 // 1: header
8444 // 2: section]]
8445 // 3: aaaaaa
8446 // 4: bbbbbb
8447 // 5: cccccc
8448 // 6:
8449 // 7: [[footer]]
8450 // 8: [[header]]
8451 // 9: ffffff
8452 // 10: gggggg
8453 // 11: hhhhhh
8454 // 12:
8455 // 13: [[footer]]
8456 // 14: [[file
8457 // 15: header
8458 // 16: section]]
8459 // 17: bbbbbb
8460 // 18: cccccc
8461 // 19: dddddd
8462 // 20: [[footer]]
8463 let window = cx.add_window(|window, cx| {
8464 let buffer = MultiBuffer::build_multi(
8465 [
8466 (
8467 &(sample_text(8, 6, 'a') + "\n"),
8468 vec![
8469 Point::new(0, 0)..Point::new(3, 0),
8470 Point::new(4, 0)..Point::new(7, 0),
8471 ],
8472 ),
8473 (
8474 &(sample_text(8, 6, 'a') + "\n"),
8475 vec![Point::new(1, 0)..Point::new(3, 0)],
8476 ),
8477 ],
8478 cx,
8479 );
8480 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8481 });
8482 let editor = window.root(cx).unwrap();
8483 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8484 let _state = window.update(cx, |editor, window, cx| {
8485 editor.cursor_shape = CursorShape::Block;
8486 editor.change_selections(None, window, cx, |s| {
8487 s.select_display_ranges([
8488 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8489 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8490 ]);
8491 });
8492 });
8493
8494 let (_, state) = cx.draw(
8495 point(px(500.), px(500.)),
8496 size(px(500.), px(500.)),
8497 |_, _| EditorElement::new(&editor, style),
8498 );
8499 assert_eq!(state.selections.len(), 1);
8500 let local_selections = &state.selections[0].1;
8501 assert_eq!(local_selections.len(), 2);
8502
8503 // moves cursor on excerpt boundary back a line
8504 // and doesn't allow selection to bleed through
8505 assert_eq!(
8506 local_selections[0].range,
8507 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8508 );
8509 assert_eq!(
8510 local_selections[0].head,
8511 DisplayPoint::new(DisplayRow(6), 0)
8512 );
8513 // moves cursor on buffer boundary back two lines
8514 // and doesn't allow selection to bleed through
8515 assert_eq!(
8516 local_selections[1].range,
8517 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8518 );
8519 assert_eq!(
8520 local_selections[1].head,
8521 DisplayPoint::new(DisplayRow(12), 0)
8522 );
8523 }
8524
8525 #[gpui::test]
8526 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8527 init_test(cx, |_| {});
8528
8529 let window = cx.add_window(|window, cx| {
8530 let buffer = MultiBuffer::build_simple("", cx);
8531 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8532 });
8533 let cx = &mut VisualTestContext::from_window(*window, cx);
8534 let editor = window.root(cx).unwrap();
8535 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8536 window
8537 .update(cx, |editor, window, cx| {
8538 editor.set_placeholder_text("hello", cx);
8539 editor.insert_blocks(
8540 [BlockProperties {
8541 style: BlockStyle::Fixed,
8542 placement: BlockPlacement::Above(Anchor::min()),
8543 height: 3,
8544 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8545 priority: 0,
8546 }],
8547 None,
8548 cx,
8549 );
8550
8551 // Blur the editor so that it displays placeholder text.
8552 window.blur();
8553 })
8554 .unwrap();
8555
8556 let (_, state) = cx.draw(
8557 point(px(500.), px(500.)),
8558 size(px(500.), px(500.)),
8559 |_, _| EditorElement::new(&editor, style),
8560 );
8561 assert_eq!(state.position_map.line_layouts.len(), 4);
8562 assert_eq!(state.line_numbers.len(), 1);
8563 assert_eq!(
8564 state
8565 .line_numbers
8566 .get(&MultiBufferRow(0))
8567 .map(|line_number| line_number.shaped_line.text.as_ref()),
8568 Some("1")
8569 );
8570 }
8571
8572 #[gpui::test]
8573 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8574 const TAB_SIZE: u32 = 4;
8575
8576 let input_text = "\t \t|\t| a b";
8577 let expected_invisibles = vec![
8578 Invisible::Tab {
8579 line_start_offset: 0,
8580 line_end_offset: TAB_SIZE as usize,
8581 },
8582 Invisible::Whitespace {
8583 line_offset: TAB_SIZE as usize,
8584 },
8585 Invisible::Tab {
8586 line_start_offset: TAB_SIZE as usize + 1,
8587 line_end_offset: TAB_SIZE as usize * 2,
8588 },
8589 Invisible::Tab {
8590 line_start_offset: TAB_SIZE as usize * 2 + 1,
8591 line_end_offset: TAB_SIZE as usize * 3,
8592 },
8593 Invisible::Whitespace {
8594 line_offset: TAB_SIZE as usize * 3 + 1,
8595 },
8596 Invisible::Whitespace {
8597 line_offset: TAB_SIZE as usize * 3 + 3,
8598 },
8599 ];
8600 assert_eq!(
8601 expected_invisibles.len(),
8602 input_text
8603 .chars()
8604 .filter(|initial_char| initial_char.is_whitespace())
8605 .count(),
8606 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8607 );
8608
8609 for show_line_numbers in [true, false] {
8610 init_test(cx, |s| {
8611 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8612 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8613 });
8614
8615 let actual_invisibles = collect_invisibles_from_new_editor(
8616 cx,
8617 EditorMode::Full,
8618 input_text,
8619 px(500.0),
8620 show_line_numbers,
8621 );
8622
8623 assert_eq!(expected_invisibles, actual_invisibles);
8624 }
8625 }
8626
8627 #[gpui::test]
8628 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8629 init_test(cx, |s| {
8630 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8631 s.defaults.tab_size = NonZeroU32::new(4);
8632 });
8633
8634 for editor_mode_without_invisibles in [
8635 EditorMode::SingleLine { auto_width: false },
8636 EditorMode::AutoHeight { max_lines: 100 },
8637 ] {
8638 for show_line_numbers in [true, false] {
8639 let invisibles = collect_invisibles_from_new_editor(
8640 cx,
8641 editor_mode_without_invisibles,
8642 "\t\t\t| | a b",
8643 px(500.0),
8644 show_line_numbers,
8645 );
8646 assert!(invisibles.is_empty(),
8647 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8648 }
8649 }
8650 }
8651
8652 #[gpui::test]
8653 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8654 let tab_size = 4;
8655 let input_text = "a\tbcd ".repeat(9);
8656 let repeated_invisibles = [
8657 Invisible::Tab {
8658 line_start_offset: 1,
8659 line_end_offset: tab_size as usize,
8660 },
8661 Invisible::Whitespace {
8662 line_offset: tab_size as usize + 3,
8663 },
8664 Invisible::Whitespace {
8665 line_offset: tab_size as usize + 4,
8666 },
8667 Invisible::Whitespace {
8668 line_offset: tab_size as usize + 5,
8669 },
8670 Invisible::Whitespace {
8671 line_offset: tab_size as usize + 6,
8672 },
8673 Invisible::Whitespace {
8674 line_offset: tab_size as usize + 7,
8675 },
8676 ];
8677 let expected_invisibles = std::iter::once(repeated_invisibles)
8678 .cycle()
8679 .take(9)
8680 .flatten()
8681 .collect::<Vec<_>>();
8682 assert_eq!(
8683 expected_invisibles.len(),
8684 input_text
8685 .chars()
8686 .filter(|initial_char| initial_char.is_whitespace())
8687 .count(),
8688 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8689 );
8690 info!("Expected invisibles: {expected_invisibles:?}");
8691
8692 init_test(cx, |_| {});
8693
8694 // Put the same string with repeating whitespace pattern into editors of various size,
8695 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8696 let resize_step = 10.0;
8697 let mut editor_width = 200.0;
8698 while editor_width <= 1000.0 {
8699 for show_line_numbers in [true, false] {
8700 update_test_language_settings(cx, |s| {
8701 s.defaults.tab_size = NonZeroU32::new(tab_size);
8702 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8703 s.defaults.preferred_line_length = Some(editor_width as u32);
8704 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8705 });
8706
8707 let actual_invisibles = collect_invisibles_from_new_editor(
8708 cx,
8709 EditorMode::Full,
8710 &input_text,
8711 px(editor_width),
8712 show_line_numbers,
8713 );
8714
8715 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8716 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8717 let mut i = 0;
8718 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8719 i = actual_index;
8720 match expected_invisibles.get(i) {
8721 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8722 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8723 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8724 _ => {
8725 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8726 }
8727 },
8728 None => {
8729 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8730 }
8731 }
8732 }
8733 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8734 assert!(
8735 missing_expected_invisibles.is_empty(),
8736 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8737 );
8738
8739 editor_width += resize_step;
8740 }
8741 }
8742 }
8743
8744 fn collect_invisibles_from_new_editor(
8745 cx: &mut TestAppContext,
8746 editor_mode: EditorMode,
8747 input_text: &str,
8748 editor_width: Pixels,
8749 show_line_numbers: bool,
8750 ) -> Vec<Invisible> {
8751 info!(
8752 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8753 editor_width.0
8754 );
8755 let window = cx.add_window(|window, cx| {
8756 let buffer = MultiBuffer::build_simple(input_text, cx);
8757 Editor::new(editor_mode, buffer, None, true, window, cx)
8758 });
8759 let cx = &mut VisualTestContext::from_window(*window, cx);
8760 let editor = window.root(cx).unwrap();
8761
8762 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8763 window
8764 .update(cx, |editor, _, cx| {
8765 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8766 editor.set_wrap_width(Some(editor_width), cx);
8767 editor.set_show_line_numbers(show_line_numbers, cx);
8768 })
8769 .unwrap();
8770 let (_, state) = cx.draw(
8771 point(px(500.), px(500.)),
8772 size(px(500.), px(500.)),
8773 |_, _| EditorElement::new(&editor, style),
8774 );
8775 state
8776 .position_map
8777 .line_layouts
8778 .iter()
8779 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8780 .cloned()
8781 .collect()
8782 }
8783}
8784
8785fn diff_hunk_controls(
8786 row: u32,
8787 status: &DiffHunkStatus,
8788 hunk_range: Range<Anchor>,
8789 line_height: Pixels,
8790 editor: &Entity<Editor>,
8791 cx: &mut App,
8792) -> AnyElement {
8793 h_flex()
8794 .h(line_height)
8795 .mr_1()
8796 .gap_1()
8797 .px_1()
8798 .pb_1()
8799 .border_b_1()
8800 .border_color(cx.theme().colors().border_variant)
8801 .rounded_b_lg()
8802 .bg(cx.theme().colors().editor_background)
8803 .gap_1()
8804 .child(if status.has_secondary_hunk() {
8805 Button::new(("stage", row as u64), "Stage")
8806 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8807 .tooltip({
8808 let focus_handle = editor.focus_handle(cx);
8809 move |window, cx| {
8810 Tooltip::for_action_in(
8811 "Stage Hunk",
8812 &::git::ToggleStaged,
8813 &focus_handle,
8814 window,
8815 cx,
8816 )
8817 }
8818 })
8819 .on_click({
8820 let editor = editor.clone();
8821 move |_event, _window, cx| {
8822 editor.update(cx, |editor, cx| {
8823 editor.stage_or_unstage_diff_hunks(
8824 true,
8825 vec![hunk_range.start..hunk_range.start],
8826 cx,
8827 );
8828 });
8829 }
8830 })
8831 } else {
8832 Button::new(("unstage", row as u64), "Unstage")
8833 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8834 .tooltip({
8835 let focus_handle = editor.focus_handle(cx);
8836 move |window, cx| {
8837 Tooltip::for_action_in(
8838 "Unstage Hunk",
8839 &::git::ToggleStaged,
8840 &focus_handle,
8841 window,
8842 cx,
8843 )
8844 }
8845 })
8846 .on_click({
8847 let editor = editor.clone();
8848 move |_event, _window, cx| {
8849 editor.update(cx, |editor, cx| {
8850 editor.stage_or_unstage_diff_hunks(
8851 false,
8852 vec![hunk_range.start..hunk_range.start],
8853 cx,
8854 );
8855 });
8856 }
8857 })
8858 })
8859 .child(
8860 Button::new("discard", "Restore")
8861 .tooltip({
8862 let focus_handle = editor.focus_handle(cx);
8863 move |window, cx| {
8864 Tooltip::for_action_in(
8865 "Restore Hunk",
8866 &::git::Restore,
8867 &focus_handle,
8868 window,
8869 cx,
8870 )
8871 }
8872 })
8873 .on_click({
8874 let editor = editor.clone();
8875 move |_event, window, cx| {
8876 editor.update(cx, |editor, cx| {
8877 let snapshot = editor.snapshot(window, cx);
8878 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8879 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8880 });
8881 }
8882 }),
8883 )
8884 .when(
8885 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8886 |el| {
8887 el.child(
8888 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8889 .shape(IconButtonShape::Square)
8890 .icon_size(IconSize::Small)
8891 // .disabled(!has_multiple_hunks)
8892 .tooltip({
8893 let focus_handle = editor.focus_handle(cx);
8894 move |window, cx| {
8895 Tooltip::for_action_in(
8896 "Next Hunk",
8897 &GoToHunk,
8898 &focus_handle,
8899 window,
8900 cx,
8901 )
8902 }
8903 })
8904 .on_click({
8905 let editor = editor.clone();
8906 move |_event, window, cx| {
8907 editor.update(cx, |editor, cx| {
8908 let snapshot = editor.snapshot(window, cx);
8909 let position =
8910 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8911 editor.go_to_hunk_after_or_before_position(
8912 &snapshot,
8913 position,
8914 Direction::Next,
8915 window,
8916 cx,
8917 );
8918 editor.expand_selected_diff_hunks(cx);
8919 });
8920 }
8921 }),
8922 )
8923 .child(
8924 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8925 .shape(IconButtonShape::Square)
8926 .icon_size(IconSize::Small)
8927 // .disabled(!has_multiple_hunks)
8928 .tooltip({
8929 let focus_handle = editor.focus_handle(cx);
8930 move |window, cx| {
8931 Tooltip::for_action_in(
8932 "Previous Hunk",
8933 &GoToPreviousHunk,
8934 &focus_handle,
8935 window,
8936 cx,
8937 )
8938 }
8939 })
8940 .on_click({
8941 let editor = editor.clone();
8942 move |_event, window, cx| {
8943 editor.update(cx, |editor, cx| {
8944 let snapshot = editor.snapshot(window, cx);
8945 let point =
8946 hunk_range.start.to_point(&snapshot.buffer_snapshot);
8947 editor.go_to_hunk_after_or_before_position(
8948 &snapshot,
8949 point,
8950 Direction::Prev,
8951 window,
8952 cx,
8953 );
8954 editor.expand_selected_diff_hunks(cx);
8955 });
8956 }
8957 }),
8958 )
8959 },
8960 )
8961 .into_any_element()
8962}