1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
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::{CommitDetails, GitBlame},
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point,
23 RevertSelectedHunks, RowExt, RowRangeExt, SelectPhase, Selection, SoftWrap,
24 StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use client::ParticipantIndex;
28use collections::{BTreeMap, HashMap, HashSet};
29use file_icons::FileIcons;
30use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
31use gpui::{
32 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
33 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
34 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
35 Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
36 Hsla, InteractiveElement, IntoElement, Length, ModifiersChangedEvent, MouseButton,
37 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
38 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
39 Subscription, TextRun, TextStyleRefinement, WeakEntity, Window,
40};
41use itertools::Itertools;
42use language::{
43 language_settings::{
44 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
45 ShowWhitespaceSetting,
46 },
47 ChunkRendererContext,
48};
49use lsp::DiagnosticSeverity;
50use multi_buffer::{
51 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
52 RowInfo, ToOffset,
53};
54use project::project_settings::{GitGutterSetting, ProjectSettings};
55use settings::Settings;
56use smallvec::{smallvec, SmallVec};
57use std::{
58 any::TypeId,
59 borrow::Cow,
60 cmp::{self, Ordering},
61 fmt::{self, Write},
62 iter, mem,
63 ops::{Deref, Range},
64 rc::Rc,
65 sync::Arc,
66};
67use sum_tree::Bias;
68use text::BufferId;
69use theme::{ActiveTheme, Appearance, PlayerColor};
70use ui::{
71 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
72 POPOVER_Y_PADDING,
73};
74use unicode_segmentation::UnicodeSegmentation;
75use util::{RangeExt, ResultExt};
76use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
77
78const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
79
80#[derive(Debug, Clone, PartialEq, Eq)]
81enum DisplayDiffHunk {
82 Folded {
83 display_row: DisplayRow,
84 },
85
86 Unfolded {
87 diff_base_byte_range: Range<usize>,
88 display_row_range: Range<DisplayRow>,
89 multi_buffer_range: Range<Anchor>,
90 status: DiffHunkStatus,
91 },
92}
93
94struct SelectionLayout {
95 head: DisplayPoint,
96 cursor_shape: CursorShape,
97 is_newest: bool,
98 is_local: bool,
99 range: Range<DisplayPoint>,
100 active_rows: Range<DisplayRow>,
101 user_name: Option<SharedString>,
102}
103
104impl SelectionLayout {
105 fn new<T: ToPoint + ToDisplayPoint + Clone>(
106 selection: Selection<T>,
107 line_mode: bool,
108 cursor_shape: CursorShape,
109 map: &DisplaySnapshot,
110 is_newest: bool,
111 is_local: bool,
112 user_name: Option<SharedString>,
113 ) -> Self {
114 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
115 let display_selection = point_selection.map(|p| p.to_display_point(map));
116 let mut range = display_selection.range();
117 let mut head = display_selection.head();
118 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
119 ..map.next_line_boundary(point_selection.end).1.row();
120
121 // vim visual line mode
122 if line_mode {
123 let point_range = map.expand_to_line(point_selection.range());
124 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
125 }
126
127 // any vim visual mode (including line mode)
128 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
129 && !range.is_empty()
130 && !selection.reversed
131 {
132 if head.column() > 0 {
133 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
134 } else if head.row().0 > 0 && head != map.max_point() {
135 head = map.clip_point(
136 DisplayPoint::new(
137 head.row().previous_row(),
138 map.line_len(head.row().previous_row()),
139 ),
140 Bias::Left,
141 );
142 // updating range.end is a no-op unless you're cursor is
143 // on the newline containing a multi-buffer divider
144 // in which case the clip_point may have moved the head up
145 // an additional row.
146 range.end = DisplayPoint::new(head.row().next_row(), 0);
147 active_rows.end = head.row();
148 }
149 }
150
151 Self {
152 head,
153 cursor_shape,
154 is_newest,
155 is_local,
156 range,
157 active_rows,
158 user_name,
159 }
160 }
161}
162
163pub struct EditorElement {
164 editor: Entity<Editor>,
165 style: EditorStyle,
166}
167
168type DisplayRowDelta = u32;
169
170impl EditorElement {
171 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
172
173 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
174 Self {
175 editor: editor.clone(),
176 style,
177 }
178 }
179
180 fn register_actions(&self, window: &mut Window, cx: &mut App) {
181 let editor = &self.editor;
182 editor.update(cx, |editor, cx| {
183 for action in editor.editor_actions.borrow().values() {
184 (action)(window, cx)
185 }
186 });
187
188 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
189 crate::clangd_ext::apply_related_actions(editor, window, cx);
190 register_action(editor, window, Editor::open_context_menu);
191 register_action(editor, window, Editor::move_left);
192 register_action(editor, window, Editor::move_right);
193 register_action(editor, window, Editor::move_down);
194 register_action(editor, window, Editor::move_down_by_lines);
195 register_action(editor, window, Editor::select_down_by_lines);
196 register_action(editor, window, Editor::move_up);
197 register_action(editor, window, Editor::move_up_by_lines);
198 register_action(editor, window, Editor::select_up_by_lines);
199 register_action(editor, window, Editor::select_page_down);
200 register_action(editor, window, Editor::select_page_up);
201 register_action(editor, window, Editor::cancel);
202 register_action(editor, window, Editor::newline);
203 register_action(editor, window, Editor::newline_above);
204 register_action(editor, window, Editor::newline_below);
205 register_action(editor, window, Editor::backspace);
206 register_action(editor, window, Editor::delete);
207 register_action(editor, window, Editor::tab);
208 register_action(editor, window, Editor::tab_prev);
209 register_action(editor, window, Editor::indent);
210 register_action(editor, window, Editor::outdent);
211 register_action(editor, window, Editor::autoindent);
212 register_action(editor, window, Editor::delete_line);
213 register_action(editor, window, Editor::join_lines);
214 register_action(editor, window, Editor::sort_lines_case_sensitive);
215 register_action(editor, window, Editor::sort_lines_case_insensitive);
216 register_action(editor, window, Editor::reverse_lines);
217 register_action(editor, window, Editor::shuffle_lines);
218 register_action(editor, window, Editor::convert_to_upper_case);
219 register_action(editor, window, Editor::convert_to_lower_case);
220 register_action(editor, window, Editor::convert_to_title_case);
221 register_action(editor, window, Editor::convert_to_snake_case);
222 register_action(editor, window, Editor::convert_to_kebab_case);
223 register_action(editor, window, Editor::convert_to_upper_camel_case);
224 register_action(editor, window, Editor::convert_to_lower_camel_case);
225 register_action(editor, window, Editor::convert_to_opposite_case);
226 register_action(editor, window, Editor::delete_to_previous_word_start);
227 register_action(editor, window, Editor::delete_to_previous_subword_start);
228 register_action(editor, window, Editor::delete_to_next_word_end);
229 register_action(editor, window, Editor::delete_to_next_subword_end);
230 register_action(editor, window, Editor::delete_to_beginning_of_line);
231 register_action(editor, window, Editor::delete_to_end_of_line);
232 register_action(editor, window, Editor::cut_to_end_of_line);
233 register_action(editor, window, Editor::duplicate_line_up);
234 register_action(editor, window, Editor::duplicate_line_down);
235 register_action(editor, window, Editor::duplicate_selection);
236 register_action(editor, window, Editor::move_line_up);
237 register_action(editor, window, Editor::move_line_down);
238 register_action(editor, window, Editor::transpose);
239 register_action(editor, window, Editor::rewrap);
240 register_action(editor, window, Editor::cut);
241 register_action(editor, window, Editor::kill_ring_cut);
242 register_action(editor, window, Editor::kill_ring_yank);
243 register_action(editor, window, Editor::copy);
244 register_action(editor, window, Editor::paste);
245 register_action(editor, window, Editor::undo);
246 register_action(editor, window, Editor::redo);
247 register_action(editor, window, Editor::move_page_up);
248 register_action(editor, window, Editor::move_page_down);
249 register_action(editor, window, Editor::next_screen);
250 register_action(editor, window, Editor::scroll_cursor_top);
251 register_action(editor, window, Editor::scroll_cursor_center);
252 register_action(editor, window, Editor::scroll_cursor_bottom);
253 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
254 register_action(editor, window, |editor, _: &LineDown, window, cx| {
255 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
256 });
257 register_action(editor, window, |editor, _: &LineUp, window, cx| {
258 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
259 });
260 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
261 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
262 });
263 register_action(
264 editor,
265 window,
266 |editor, HandleInput(text): &HandleInput, window, cx| {
267 if text.is_empty() {
268 return;
269 }
270 editor.handle_input(text, window, cx);
271 },
272 );
273 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
274 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
275 });
276 register_action(editor, window, |editor, _: &PageDown, window, cx| {
277 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
278 });
279 register_action(editor, window, |editor, _: &PageUp, window, cx| {
280 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
281 });
282 register_action(editor, window, Editor::move_to_previous_word_start);
283 register_action(editor, window, Editor::move_to_previous_subword_start);
284 register_action(editor, window, Editor::move_to_next_word_end);
285 register_action(editor, window, Editor::move_to_next_subword_end);
286 register_action(editor, window, Editor::move_to_beginning_of_line);
287 register_action(editor, window, Editor::move_to_end_of_line);
288 register_action(editor, window, Editor::move_to_start_of_paragraph);
289 register_action(editor, window, Editor::move_to_end_of_paragraph);
290 register_action(editor, window, Editor::move_to_beginning);
291 register_action(editor, window, Editor::move_to_end);
292 register_action(editor, window, Editor::select_up);
293 register_action(editor, window, Editor::select_down);
294 register_action(editor, window, Editor::select_left);
295 register_action(editor, window, Editor::select_right);
296 register_action(editor, window, Editor::select_to_previous_word_start);
297 register_action(editor, window, Editor::select_to_previous_subword_start);
298 register_action(editor, window, Editor::select_to_next_word_end);
299 register_action(editor, window, Editor::select_to_next_subword_end);
300 register_action(editor, window, Editor::select_to_beginning_of_line);
301 register_action(editor, window, Editor::select_to_end_of_line);
302 register_action(editor, window, Editor::select_to_start_of_paragraph);
303 register_action(editor, window, Editor::select_to_end_of_paragraph);
304 register_action(editor, window, Editor::select_to_beginning);
305 register_action(editor, window, Editor::select_to_end);
306 register_action(editor, window, Editor::select_all);
307 register_action(editor, window, |editor, action, window, cx| {
308 editor.select_all_matches(action, window, cx).log_err();
309 });
310 register_action(editor, window, Editor::select_line);
311 register_action(editor, window, Editor::split_selection_into_lines);
312 register_action(editor, window, Editor::add_selection_above);
313 register_action(editor, window, Editor::add_selection_below);
314 register_action(editor, window, |editor, action, window, cx| {
315 editor.select_next(action, window, cx).log_err();
316 });
317 register_action(editor, window, |editor, action, window, cx| {
318 editor.select_previous(action, window, cx).log_err();
319 });
320 register_action(editor, window, Editor::toggle_comments);
321 register_action(editor, window, Editor::select_larger_syntax_node);
322 register_action(editor, window, Editor::select_smaller_syntax_node);
323 register_action(editor, window, Editor::select_enclosing_symbol);
324 register_action(editor, window, Editor::move_to_enclosing_bracket);
325 register_action(editor, window, Editor::undo_selection);
326 register_action(editor, window, Editor::redo_selection);
327 if !editor.read(cx).is_singleton(cx) {
328 register_action(editor, window, Editor::expand_excerpts);
329 register_action(editor, window, Editor::expand_excerpts_up);
330 register_action(editor, window, Editor::expand_excerpts_down);
331 }
332 register_action(editor, window, Editor::go_to_diagnostic);
333 register_action(editor, window, Editor::go_to_prev_diagnostic);
334 register_action(editor, window, Editor::go_to_next_hunk);
335 register_action(editor, window, Editor::go_to_prev_hunk);
336 register_action(editor, window, |editor, action, window, cx| {
337 editor
338 .go_to_definition(action, window, cx)
339 .detach_and_log_err(cx);
340 });
341 register_action(editor, window, |editor, action, window, cx| {
342 editor
343 .go_to_definition_split(action, window, cx)
344 .detach_and_log_err(cx);
345 });
346 register_action(editor, window, |editor, action, window, cx| {
347 editor
348 .go_to_declaration(action, window, cx)
349 .detach_and_log_err(cx);
350 });
351 register_action(editor, window, |editor, action, window, cx| {
352 editor
353 .go_to_declaration_split(action, window, cx)
354 .detach_and_log_err(cx);
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor
358 .go_to_implementation(action, window, cx)
359 .detach_and_log_err(cx);
360 });
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_implementation_split(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_type_definition(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_type_definition_split(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, Editor::open_url);
377 register_action(editor, window, Editor::open_selected_filename);
378 register_action(editor, window, Editor::fold);
379 register_action(editor, window, Editor::fold_at_level);
380 register_action(editor, window, Editor::fold_all);
381 register_action(editor, window, Editor::fold_function_bodies);
382 register_action(editor, window, Editor::fold_at);
383 register_action(editor, window, Editor::fold_recursive);
384 register_action(editor, window, Editor::toggle_fold);
385 register_action(editor, window, Editor::toggle_fold_recursive);
386 register_action(editor, window, Editor::unfold_lines);
387 register_action(editor, window, Editor::unfold_recursive);
388 register_action(editor, window, Editor::unfold_all);
389 register_action(editor, window, Editor::unfold_at);
390 register_action(editor, window, Editor::fold_selected_ranges);
391 register_action(editor, window, Editor::set_mark);
392 register_action(editor, window, Editor::swap_selection_ends);
393 register_action(editor, window, Editor::show_completions);
394 register_action(editor, window, Editor::toggle_code_actions);
395 register_action(editor, window, Editor::open_excerpts);
396 register_action(editor, window, Editor::open_excerpts_in_split);
397 register_action(editor, window, Editor::open_proposed_changes_editor);
398 register_action(editor, window, Editor::toggle_soft_wrap);
399 register_action(editor, window, Editor::toggle_tab_bar);
400 register_action(editor, window, Editor::toggle_line_numbers);
401 register_action(editor, window, Editor::toggle_relative_line_numbers);
402 register_action(editor, window, Editor::toggle_indent_guides);
403 register_action(editor, window, Editor::toggle_inlay_hints);
404 register_action(editor, window, Editor::toggle_inline_completions);
405 register_action(editor, window, hover_popover::hover);
406 register_action(editor, window, Editor::reveal_in_finder);
407 register_action(editor, window, Editor::copy_path);
408 register_action(editor, window, Editor::copy_relative_path);
409 register_action(editor, window, Editor::copy_highlight_json);
410 register_action(editor, window, Editor::copy_permalink_to_line);
411 register_action(editor, window, Editor::open_permalink_to_line);
412 register_action(editor, window, Editor::copy_file_location);
413 register_action(editor, window, Editor::toggle_git_blame);
414 register_action(editor, window, Editor::toggle_git_blame_inline);
415 register_action(editor, window, Editor::toggle_selected_diff_hunks);
416 register_action(editor, window, Editor::expand_all_diff_hunks);
417 register_action(editor, window, |editor, action, window, cx| {
418 if let Some(task) = editor.format(action, window, cx) {
419 task.detach_and_notify_err(window, cx);
420 } else {
421 cx.propagate();
422 }
423 });
424 register_action(editor, window, |editor, action, window, cx| {
425 if let Some(task) = editor.format_selections(action, window, cx) {
426 task.detach_and_notify_err(window, cx);
427 } else {
428 cx.propagate();
429 }
430 });
431 register_action(editor, window, Editor::restart_language_server);
432 register_action(editor, window, Editor::cancel_language_server_work);
433 register_action(editor, window, Editor::show_character_palette);
434 register_action(editor, window, |editor, action, window, cx| {
435 if let Some(task) = editor.confirm_completion(action, window, cx) {
436 task.detach_and_notify_err(window, cx);
437 } else {
438 cx.propagate();
439 }
440 });
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.compose_completion(action, window, cx) {
443 task.detach_and_notify_err(window, cx);
444 } else {
445 cx.propagate();
446 }
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.confirm_code_action(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.rename(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, |editor, action, window, cx| {
463 if let Some(task) = editor.confirm_rename(action, window, cx) {
464 task.detach_and_notify_err(window, cx);
465 } else {
466 cx.propagate();
467 }
468 });
469 register_action(editor, window, |editor, action, window, cx| {
470 if let Some(task) = editor.find_all_references(action, window, cx) {
471 task.detach_and_log_err(cx);
472 } else {
473 cx.propagate();
474 }
475 });
476 register_action(editor, window, Editor::show_signature_help);
477 register_action(editor, window, Editor::next_inline_completion);
478 register_action(editor, window, Editor::previous_inline_completion);
479 register_action(editor, window, Editor::show_inline_completion);
480 register_action(editor, window, Editor::context_menu_first);
481 register_action(editor, window, Editor::context_menu_prev);
482 register_action(editor, window, Editor::context_menu_next);
483 register_action(editor, window, Editor::context_menu_last);
484 register_action(editor, window, Editor::display_cursor_names);
485 register_action(editor, window, Editor::unique_lines_case_insensitive);
486 register_action(editor, window, Editor::unique_lines_case_sensitive);
487 register_action(editor, window, Editor::accept_partial_inline_completion);
488 register_action(editor, window, Editor::accept_inline_completion);
489 register_action(editor, window, Editor::revert_file);
490 register_action(editor, window, Editor::revert_selected_hunks);
491 register_action(editor, window, Editor::apply_all_diff_hunks);
492 register_action(editor, window, Editor::apply_selected_diff_hunks);
493 register_action(editor, window, Editor::open_active_item_in_terminal);
494 register_action(editor, window, Editor::reload_file);
495 register_action(editor, window, Editor::spawn_nearest_task);
496 register_action(editor, window, Editor::insert_uuid_v4);
497 register_action(editor, window, Editor::insert_uuid_v7);
498 register_action(editor, window, Editor::open_selections_in_multibuffer);
499 }
500
501 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
502 let position_map = layout.position_map.clone();
503 window.on_key_event({
504 let editor = self.editor.clone();
505 let text_hitbox = layout.text_hitbox.clone();
506 move |event: &ModifiersChangedEvent, phase, window, cx| {
507 if phase != DispatchPhase::Bubble {
508 return;
509 }
510 editor.update(cx, |editor, cx| {
511 if editor.hover_state.focused(window, cx) {
512 return;
513 }
514 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, window, cx)
515 })
516 }
517 });
518 }
519
520 fn modifiers_changed(
521 editor: &mut Editor,
522 event: &ModifiersChangedEvent,
523 position_map: &PositionMap,
524 text_hitbox: &Hitbox,
525 window: &mut Window,
526 cx: &mut Context<Editor>,
527 ) {
528 let mouse_position = window.mouse_position();
529 if !text_hitbox.is_hovered(window) {
530 return;
531 }
532
533 editor.update_hovered_link(
534 position_map.point_for_position(text_hitbox.bounds, mouse_position),
535 &position_map.snapshot,
536 event.modifiers,
537 window,
538 cx,
539 )
540 }
541
542 #[allow(clippy::too_many_arguments)]
543 fn mouse_left_down(
544 editor: &mut Editor,
545 event: &MouseDownEvent,
546 hovered_hunk: Option<Range<Anchor>>,
547 position_map: &PositionMap,
548 text_hitbox: &Hitbox,
549 gutter_hitbox: &Hitbox,
550 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
551 window: &mut Window,
552 cx: &mut Context<Editor>,
553 ) {
554 if window.default_prevented() {
555 return;
556 }
557
558 let mut click_count = event.click_count;
559 let mut modifiers = event.modifiers;
560
561 if let Some(hovered_hunk) = hovered_hunk {
562 editor.toggle_diff_hunks_in_ranges(vec![hovered_hunk], cx);
563 cx.notify();
564 return;
565 } else if gutter_hitbox.is_hovered(window) {
566 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
567 } else if !text_hitbox.is_hovered(window) {
568 return;
569 }
570
571 let is_singleton = editor.buffer().read(cx).is_singleton();
572
573 if click_count == 2 && !is_singleton {
574 match EditorSettings::get_global(cx).double_click_in_multibuffer {
575 DoubleClickInMultibuffer::Select => {
576 // do nothing special on double click, all selection logic is below
577 }
578 DoubleClickInMultibuffer::Open => {
579 if modifiers.alt {
580 // if double click is made with alt, pretend it's a regular double click without opening and alt,
581 // and run the selection logic.
582 modifiers.alt = false;
583 } else {
584 let scroll_position_row =
585 position_map.scroll_pixel_position.y / position_map.line_height;
586 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
587 + position_map.scroll_pixel_position.y)
588 / position_map.line_height)
589 as u32;
590 let multi_buffer_row = position_map
591 .snapshot
592 .display_point_to_point(
593 DisplayPoint::new(DisplayRow(display_row), 0),
594 Bias::Right,
595 )
596 .row;
597 let line_offset_from_top = display_row - scroll_position_row as u32;
598 // if double click is made without alt, open the corresponding excerp
599 editor.open_excerpts_common(
600 Some(JumpData::MultiBufferRow {
601 row: MultiBufferRow(multi_buffer_row),
602 line_offset_from_top,
603 }),
604 false,
605 window,
606 cx,
607 );
608 return;
609 }
610 }
611 }
612 }
613
614 let point_for_position =
615 position_map.point_for_position(text_hitbox.bounds, event.position);
616 let position = point_for_position.previous_valid;
617 if modifiers.shift && modifiers.alt {
618 editor.select(
619 SelectPhase::BeginColumnar {
620 position,
621 reset: false,
622 goal_column: point_for_position.exact_unclipped.column(),
623 },
624 window,
625 cx,
626 );
627 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
628 {
629 editor.select(
630 SelectPhase::Extend {
631 position,
632 click_count,
633 },
634 window,
635 cx,
636 );
637 } else {
638 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
639 let multi_cursor_modifier = match multi_cursor_setting {
640 MultiCursorModifier::Alt => modifiers.alt,
641 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
642 };
643 editor.select(
644 SelectPhase::Begin {
645 position,
646 add: multi_cursor_modifier,
647 click_count,
648 },
649 window,
650 cx,
651 );
652 }
653 cx.stop_propagation();
654
655 if !is_singleton {
656 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
657 + position_map.scroll_pixel_position.y)
658 / position_map.line_height) as u32;
659 let multi_buffer_row = position_map
660 .snapshot
661 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
662 .row;
663 if line_numbers
664 .get(&MultiBufferRow(multi_buffer_row))
665 .and_then(|line_number| line_number.hitbox.as_ref())
666 .is_some_and(|hitbox| hitbox.contains(&event.position))
667 {
668 let scroll_position_row =
669 position_map.scroll_pixel_position.y / position_map.line_height;
670 let line_offset_from_top = display_row - scroll_position_row as u32;
671
672 editor.open_excerpts_common(
673 Some(JumpData::MultiBufferRow {
674 row: MultiBufferRow(multi_buffer_row),
675 line_offset_from_top,
676 }),
677 modifiers.alt,
678 window,
679 cx,
680 );
681 cx.stop_propagation();
682 }
683 }
684 }
685
686 fn mouse_right_down(
687 editor: &mut Editor,
688 event: &MouseDownEvent,
689 position_map: &PositionMap,
690 text_hitbox: &Hitbox,
691 window: &mut Window,
692 cx: &mut Context<Editor>,
693 ) {
694 if !text_hitbox.is_hovered(window) {
695 return;
696 }
697 let point_for_position =
698 position_map.point_for_position(text_hitbox.bounds, event.position);
699 mouse_context_menu::deploy_context_menu(
700 editor,
701 Some(event.position),
702 point_for_position.previous_valid,
703 window,
704 cx,
705 );
706 cx.stop_propagation();
707 }
708
709 fn mouse_middle_down(
710 editor: &mut Editor,
711 event: &MouseDownEvent,
712 position_map: &PositionMap,
713 text_hitbox: &Hitbox,
714 window: &mut Window,
715 cx: &mut Context<Editor>,
716 ) {
717 if !text_hitbox.is_hovered(window) || window.default_prevented() {
718 return;
719 }
720
721 let point_for_position =
722 position_map.point_for_position(text_hitbox.bounds, 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 text_hitbox: &Hitbox,
741 window: &mut Window,
742 cx: &mut Context<Editor>,
743 ) {
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 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
752 let multi_cursor_modifier = match multi_cursor_setting {
753 MultiCursorModifier::Alt => event.modifiers.secondary(),
754 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
755 };
756
757 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
758 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
759 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
760
761 cx.stop_propagation();
762 } else if end_selection && pending_nonempty_selections {
763 cx.stop_propagation();
764 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
765 && event.button == MouseButton::Middle
766 {
767 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
768 return;
769 }
770
771 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
772 if EditorSettings::get_global(cx).middle_click_paste {
773 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
774 let point_for_position =
775 position_map.point_for_position(text_hitbox.bounds, event.position);
776 let position = point_for_position.previous_valid;
777
778 editor.select(
779 SelectPhase::Begin {
780 position,
781 add: false,
782 click_count: 1,
783 },
784 window,
785 cx,
786 );
787 editor.insert(&text, window, cx);
788 }
789 cx.stop_propagation()
790 }
791 }
792 }
793
794 fn mouse_dragged(
795 editor: &mut Editor,
796 event: &MouseMoveEvent,
797 position_map: &PositionMap,
798 text_bounds: Bounds<Pixels>,
799 window: &mut Window,
800 cx: &mut Context<Editor>,
801 ) {
802 if !editor.has_pending_selection() {
803 return;
804 }
805
806 let point_for_position = position_map.point_for_position(text_bounds, event.position);
807 let mut scroll_delta = gpui::Point::<f32>::default();
808 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
809 let top = text_bounds.origin.y + vertical_margin;
810 let bottom = text_bounds.bottom_left().y - vertical_margin;
811 if event.position.y < top {
812 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
813 }
814 if event.position.y > bottom {
815 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
816 }
817
818 // We need horizontal width of text
819 let style = editor.style.clone().unwrap_or_default();
820 let font_id = window.text_system().resolve_font(&style.text.font());
821 let font_size = style.text.font_size.to_pixels(window.rem_size());
822 let em_width = window
823 .text_system()
824 .typographic_bounds(font_id, font_size, 'm')
825 .unwrap()
826 .size
827 .width;
828
829 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
830
831 let scroll_space: Pixels = scroll_margin_x * em_width;
832
833 let left = text_bounds.origin.x + scroll_space;
834 let right = text_bounds.top_right().x - scroll_space;
835
836 if event.position.x < left {
837 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
838 }
839 if event.position.x > right {
840 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
841 }
842
843 editor.select(
844 SelectPhase::Update {
845 position: point_for_position.previous_valid,
846 goal_column: point_for_position.exact_unclipped.column(),
847 scroll_delta,
848 },
849 window,
850 cx,
851 );
852 }
853
854 fn mouse_moved(
855 editor: &mut Editor,
856 event: &MouseMoveEvent,
857 position_map: &PositionMap,
858 text_hitbox: &Hitbox,
859 gutter_hitbox: &Hitbox,
860 window: &mut Window,
861 cx: &mut Context<Editor>,
862 ) {
863 let modifiers = event.modifiers;
864 let gutter_hovered = gutter_hitbox.is_hovered(window);
865 editor.set_gutter_hovered(gutter_hovered, cx);
866
867 // Don't trigger hover popover if mouse is hovering over context menu
868 if text_hitbox.is_hovered(window) {
869 let point_for_position =
870 position_map.point_for_position(text_hitbox.bounds, event.position);
871
872 editor.update_hovered_link(
873 point_for_position,
874 &position_map.snapshot,
875 modifiers,
876 window,
877 cx,
878 );
879
880 if let Some(point) = point_for_position.as_valid() {
881 let anchor = position_map
882 .snapshot
883 .buffer_snapshot
884 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
885 hover_at(editor, Some(anchor), window, cx);
886 Self::update_visible_cursor(editor, point, position_map, window, cx);
887 } else {
888 hover_at(editor, None, window, cx);
889 }
890 } else {
891 editor.hide_hovered_link(cx);
892 hover_at(editor, None, window, cx);
893 if gutter_hovered {
894 cx.stop_propagation();
895 }
896 }
897 }
898
899 fn update_visible_cursor(
900 editor: &mut Editor,
901 point: DisplayPoint,
902 position_map: &PositionMap,
903 window: &mut Window,
904 cx: &mut Context<Editor>,
905 ) {
906 let snapshot = &position_map.snapshot;
907 let Some(hub) = editor.collaboration_hub() else {
908 return;
909 };
910 let start = snapshot.display_snapshot.clip_point(
911 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
912 Bias::Left,
913 );
914 let end = snapshot.display_snapshot.clip_point(
915 DisplayPoint::new(
916 point.row(),
917 (point.column() + 1).min(snapshot.line_len(point.row())),
918 ),
919 Bias::Right,
920 );
921
922 let range = snapshot
923 .buffer_snapshot
924 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
925 ..snapshot
926 .buffer_snapshot
927 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
928
929 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
930 return;
931 };
932 let key = crate::HoveredCursor {
933 replica_id: selection.replica_id,
934 selection_id: selection.selection.id,
935 };
936 editor.hovered_cursors.insert(
937 key.clone(),
938 cx.spawn_in(window, |editor, mut cx| async move {
939 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
940 editor
941 .update(&mut cx, |editor, cx| {
942 editor.hovered_cursors.remove(&key);
943 cx.notify();
944 })
945 .ok();
946 }),
947 );
948 cx.notify()
949 }
950
951 #[allow(clippy::too_many_arguments)]
952 fn layout_selections(
953 &self,
954 start_anchor: Anchor,
955 end_anchor: Anchor,
956 local_selections: &[Selection<Point>],
957 snapshot: &EditorSnapshot,
958 start_row: DisplayRow,
959 end_row: DisplayRow,
960 window: &mut Window,
961 cx: &mut App,
962 ) -> (
963 Vec<(PlayerColor, Vec<SelectionLayout>)>,
964 BTreeMap<DisplayRow, bool>,
965 Option<DisplayPoint>,
966 ) {
967 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
968 let mut active_rows = BTreeMap::new();
969 let mut newest_selection_head = None;
970 self.editor.update(cx, |editor, cx| {
971 if editor.show_local_selections {
972 let mut layouts = Vec::new();
973 let newest = editor.selections.newest(cx);
974 for selection in local_selections.iter().cloned() {
975 let is_empty = selection.start == selection.end;
976 let is_newest = selection == newest;
977
978 let layout = SelectionLayout::new(
979 selection,
980 editor.selections.line_mode,
981 editor.cursor_shape,
982 &snapshot.display_snapshot,
983 is_newest,
984 editor.leader_peer_id.is_none(),
985 None,
986 );
987 if is_newest {
988 newest_selection_head = Some(layout.head);
989 }
990
991 for row in cmp::max(layout.active_rows.start.0, start_row.0)
992 ..=cmp::min(layout.active_rows.end.0, end_row.0)
993 {
994 let contains_non_empty_selection =
995 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
996 *contains_non_empty_selection |= !is_empty;
997 }
998 layouts.push(layout);
999 }
1000
1001 let player = if editor.read_only(cx) {
1002 cx.theme().players().read_only()
1003 } else {
1004 self.style.local_player
1005 };
1006
1007 selections.push((player, layouts));
1008 }
1009
1010 if let Some(collaboration_hub) = &editor.collaboration_hub {
1011 // When following someone, render the local selections in their color.
1012 if let Some(leader_id) = editor.leader_peer_id {
1013 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1014 {
1015 if let Some(participant_index) = collaboration_hub
1016 .user_participant_indices(cx)
1017 .get(&collaborator.user_id)
1018 {
1019 if let Some((local_selection_style, _)) = selections.first_mut() {
1020 *local_selection_style = cx
1021 .theme()
1022 .players()
1023 .color_for_participant(participant_index.0);
1024 }
1025 }
1026 }
1027 }
1028
1029 let mut remote_selections = HashMap::default();
1030 for selection in snapshot.remote_selections_in_range(
1031 &(start_anchor..end_anchor),
1032 collaboration_hub.as_ref(),
1033 cx,
1034 ) {
1035 let selection_style =
1036 Self::get_participant_color(selection.participant_index, cx);
1037
1038 // Don't re-render the leader's selections, since the local selections
1039 // match theirs.
1040 if Some(selection.peer_id) == editor.leader_peer_id {
1041 continue;
1042 }
1043 let key = HoveredCursor {
1044 replica_id: selection.replica_id,
1045 selection_id: selection.selection.id,
1046 };
1047
1048 let is_shown =
1049 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1050
1051 remote_selections
1052 .entry(selection.replica_id)
1053 .or_insert((selection_style, Vec::new()))
1054 .1
1055 .push(SelectionLayout::new(
1056 selection.selection,
1057 selection.line_mode,
1058 selection.cursor_shape,
1059 &snapshot.display_snapshot,
1060 false,
1061 false,
1062 if is_shown { selection.user_name } else { None },
1063 ));
1064 }
1065
1066 selections.extend(remote_selections.into_values());
1067 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1068 let player = if editor.read_only(cx) {
1069 cx.theme().players().read_only()
1070 } else {
1071 self.style.local_player
1072 };
1073 let layouts = snapshot
1074 .buffer_snapshot
1075 .selections_in_range(&(start_anchor..end_anchor), true)
1076 .map(move |(_, line_mode, cursor_shape, selection)| {
1077 SelectionLayout::new(
1078 selection,
1079 line_mode,
1080 cursor_shape,
1081 &snapshot.display_snapshot,
1082 false,
1083 false,
1084 None,
1085 )
1086 })
1087 .collect::<Vec<_>>();
1088 selections.push((player, layouts));
1089 }
1090 });
1091 (selections, active_rows, newest_selection_head)
1092 }
1093
1094 fn collect_cursors(
1095 &self,
1096 snapshot: &EditorSnapshot,
1097 cx: &mut App,
1098 ) -> Vec<(DisplayPoint, Hsla)> {
1099 let editor = self.editor.read(cx);
1100 let mut cursors = Vec::new();
1101 let mut skip_local = false;
1102 let mut add_cursor = |anchor: Anchor, color| {
1103 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1104 };
1105 // Remote cursors
1106 if let Some(collaboration_hub) = &editor.collaboration_hub {
1107 for remote_selection in snapshot.remote_selections_in_range(
1108 &(Anchor::min()..Anchor::max()),
1109 collaboration_hub.deref(),
1110 cx,
1111 ) {
1112 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1113 add_cursor(remote_selection.selection.head(), color.cursor);
1114 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1115 skip_local = true;
1116 }
1117 }
1118 }
1119 // Local cursors
1120 if !skip_local {
1121 let color = cx.theme().players().local().cursor;
1122 editor.selections.disjoint.iter().for_each(|selection| {
1123 add_cursor(selection.head(), color);
1124 });
1125 if let Some(ref selection) = editor.selections.pending_anchor() {
1126 add_cursor(selection.head(), color);
1127 }
1128 }
1129 cursors
1130 }
1131
1132 #[allow(clippy::too_many_arguments)]
1133 fn layout_visible_cursors(
1134 &self,
1135 snapshot: &EditorSnapshot,
1136 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1137 block_start_rows: &HashSet<DisplayRow>,
1138 visible_display_row_range: Range<DisplayRow>,
1139 line_layouts: &[LineWithInvisibles],
1140 text_hitbox: &Hitbox,
1141 content_origin: gpui::Point<Pixels>,
1142 scroll_position: gpui::Point<f32>,
1143 scroll_pixel_position: gpui::Point<Pixels>,
1144 line_height: Pixels,
1145 em_width: Pixels,
1146 em_advance: Pixels,
1147 autoscroll_containing_element: bool,
1148 window: &mut Window,
1149 cx: &mut App,
1150 ) -> Vec<CursorLayout> {
1151 let mut autoscroll_bounds = None;
1152 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1153 let mut cursors = Vec::new();
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 && !editor.show_local_cursors(window, cx))
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 cursors
1284 });
1285
1286 if let Some(bounds) = autoscroll_bounds {
1287 window.request_autoscroll(bounds);
1288 }
1289
1290 cursor_layouts
1291 }
1292
1293 fn layout_scrollbars(
1294 &self,
1295 snapshot: &EditorSnapshot,
1296 scrollbar_range_data: ScrollbarRangeData,
1297 scroll_position: gpui::Point<f32>,
1298 non_visible_cursors: bool,
1299 window: &mut Window,
1300 cx: &mut App,
1301 ) -> AxisPair<Option<ScrollbarLayout>> {
1302 let letter_size = scrollbar_range_data.letter_size;
1303 let text_units_per_page = axis_pair(
1304 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1305 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1306 );
1307
1308 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1309 let show_scrollbars = self.editor.read(cx).show_scrollbars
1310 && match scrollbar_settings.show {
1311 ShowScrollbar::Auto => {
1312 let editor = self.editor.read(cx);
1313 let is_singleton = editor.is_singleton(cx);
1314 // Git
1315 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1316 ||
1317 // Buffer Search Results
1318 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1319 ||
1320 // Selected Symbol Occurrences
1321 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1322 ||
1323 // Diagnostics
1324 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1325 ||
1326 // Cursors out of sight
1327 non_visible_cursors
1328 ||
1329 // Scrollmanager
1330 editor.scroll_manager.scrollbars_visible()
1331 }
1332 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1333 ShowScrollbar::Always => true,
1334 ShowScrollbar::Never => false,
1335 };
1336
1337 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1338
1339 if snapshot.mode != EditorMode::Full {
1340 return axis_pair(None, None);
1341 }
1342
1343 let visible_range = axis_pair(
1344 axes.horizontal
1345 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1346 axes.vertical
1347 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1348 );
1349
1350 // If a drag took place after we started dragging the scrollbar,
1351 // cancel the scrollbar drag.
1352 if cx.has_active_drag() {
1353 self.editor.update(cx, |editor, cx| {
1354 editor
1355 .scroll_manager
1356 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1357 editor
1358 .scroll_manager
1359 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1360 });
1361 }
1362
1363 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1364
1365 let track_bounds = axis_pair(
1366 axes.horizontal.then(|| {
1367 Bounds::from_corners(
1368 point(
1369 text_bounds.bottom_left().x,
1370 text_bounds.bottom_left().y - self.style.scrollbar_width,
1371 ),
1372 point(
1373 text_bounds.bottom_right().x
1374 - if axes.vertical {
1375 self.style.scrollbar_width
1376 } else {
1377 px(0.)
1378 },
1379 text_bounds.bottom_right().y,
1380 ),
1381 )
1382 }),
1383 axes.vertical.then(|| {
1384 Bounds::from_corners(
1385 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1386 text_bounds.bottom_right(),
1387 )
1388 }),
1389 );
1390
1391 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1392 let total_text_units = axis_pair(
1393 Some(scroll_range_size.width / letter_size.width),
1394 Some(scroll_range_size.height / letter_size.height),
1395 );
1396
1397 let thumb_size = axis_pair(
1398 total_text_units
1399 .horizontal
1400 .zip(track_bounds.horizontal)
1401 .and_then(|(total_text_units_x, track_bounds_x)| {
1402 if text_units_per_page.horizontal >= total_text_units_x {
1403 return None;
1404 }
1405
1406 let thumb_percent =
1407 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1408
1409 Some(track_bounds_x.size.width * thumb_percent)
1410 }),
1411 total_text_units.vertical.zip(track_bounds.vertical).map(
1412 |(total_text_units_y, track_bounds_y)| {
1413 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1414
1415 track_bounds_y.size.height * thumb_percent
1416 },
1417 ),
1418 );
1419
1420 // NOTE: Space not taken by track bounds divided by text units not on screen
1421 let text_unit_size = axis_pair(
1422 thumb_size
1423 .horizontal
1424 .zip(track_bounds.horizontal)
1425 .zip(total_text_units.horizontal)
1426 .map(|((thumb_size, track_bounds), total_text_units)| {
1427 (track_bounds.size.width - thumb_size)
1428 / (total_text_units - text_units_per_page.horizontal).max(0.)
1429 }),
1430 thumb_size
1431 .vertical
1432 .zip(track_bounds.vertical)
1433 .zip(total_text_units.vertical)
1434 .map(|((thumb_size, track_bounds), total_text_units)| {
1435 (track_bounds.size.height - thumb_size)
1436 / (total_text_units - text_units_per_page.vertical).max(0.)
1437 }),
1438 );
1439
1440 let horizontal_scrollbar = track_bounds
1441 .horizontal
1442 .zip(visible_range.horizontal)
1443 .zip(text_unit_size.horizontal)
1444 .zip(thumb_size.horizontal)
1445 .map(
1446 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1447 hitbox: window.insert_hitbox(track_bounds, false),
1448 visible_range,
1449 text_unit_size,
1450 visible: show_scrollbars,
1451 thumb_size,
1452 axis: Axis::Horizontal,
1453 },
1454 );
1455
1456 let vertical_scrollbar = track_bounds
1457 .vertical
1458 .zip(visible_range.vertical)
1459 .zip(text_unit_size.vertical)
1460 .zip(thumb_size.vertical)
1461 .map(
1462 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1463 hitbox: window.insert_hitbox(track_bounds, false),
1464 visible_range,
1465 text_unit_size,
1466 visible: show_scrollbars,
1467 thumb_size,
1468 axis: Axis::Vertical,
1469 },
1470 );
1471
1472 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1473 }
1474
1475 #[allow(clippy::too_many_arguments)]
1476 fn prepaint_crease_toggles(
1477 &self,
1478 crease_toggles: &mut [Option<AnyElement>],
1479 line_height: Pixels,
1480 gutter_dimensions: &GutterDimensions,
1481 gutter_settings: crate::editor_settings::Gutter,
1482 scroll_pixel_position: gpui::Point<Pixels>,
1483 gutter_hitbox: &Hitbox,
1484 window: &mut Window,
1485 cx: &mut App,
1486 ) {
1487 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1488 if let Some(crease_toggle) = crease_toggle {
1489 debug_assert!(gutter_settings.folds);
1490 let available_space = size(
1491 AvailableSpace::MinContent,
1492 AvailableSpace::Definite(line_height * 0.55),
1493 );
1494 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1495
1496 let position = point(
1497 gutter_dimensions.width - gutter_dimensions.right_padding,
1498 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1499 );
1500 let centering_offset = point(
1501 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1502 (line_height - crease_toggle_size.height) / 2.,
1503 );
1504 let origin = gutter_hitbox.origin + position + centering_offset;
1505 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1506 }
1507 }
1508 }
1509
1510 #[allow(clippy::too_many_arguments)]
1511 fn prepaint_crease_trailers(
1512 &self,
1513 trailers: Vec<Option<AnyElement>>,
1514 lines: &[LineWithInvisibles],
1515 line_height: Pixels,
1516 content_origin: gpui::Point<Pixels>,
1517 scroll_pixel_position: gpui::Point<Pixels>,
1518 em_width: Pixels,
1519 window: &mut Window,
1520 cx: &mut App,
1521 ) -> Vec<Option<CreaseTrailerLayout>> {
1522 trailers
1523 .into_iter()
1524 .enumerate()
1525 .map(|(ix, element)| {
1526 let mut element = element?;
1527 let available_space = size(
1528 AvailableSpace::MinContent,
1529 AvailableSpace::Definite(line_height),
1530 );
1531 let size = element.layout_as_root(available_space, window, cx);
1532
1533 let line = &lines[ix];
1534 let padding = if line.width == Pixels::ZERO {
1535 Pixels::ZERO
1536 } else {
1537 4. * em_width
1538 };
1539 let position = point(
1540 scroll_pixel_position.x + line.width + padding,
1541 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1542 );
1543 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1544 let origin = content_origin + position + centering_offset;
1545 element.prepaint_as_root(origin, available_space, window, cx);
1546 Some(CreaseTrailerLayout {
1547 element,
1548 bounds: Bounds::new(origin, size),
1549 })
1550 })
1551 .collect()
1552 }
1553
1554 // Folds contained in a hunk are ignored apart from shrinking visual size
1555 // If a fold contains any hunks then that fold line is marked as modified
1556 fn layout_gutter_diff_hunks(
1557 &self,
1558 line_height: Pixels,
1559 gutter_hitbox: &Hitbox,
1560 display_rows: Range<DisplayRow>,
1561 snapshot: &EditorSnapshot,
1562 window: &mut Window,
1563 cx: &mut App,
1564 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1565 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1566 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1567
1568 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1569 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1570
1571 for hunk in snapshot
1572 .buffer_snapshot
1573 .diff_hunks_in_range(buffer_start..buffer_end)
1574 {
1575 if folded_buffers.contains(&hunk.buffer_id) {
1576 continue;
1577 }
1578
1579 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1580 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1581
1582 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1583 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1584
1585 let display_hunk = if hunk_display_start.column() != 0 {
1586 DisplayDiffHunk::Folded {
1587 display_row: hunk_display_start.row(),
1588 }
1589 } else {
1590 let mut end_row = hunk_display_end.row();
1591 if hunk_display_end.column() > 0 {
1592 end_row.0 += 1;
1593 }
1594 DisplayDiffHunk::Unfolded {
1595 status: hunk.status(),
1596 diff_base_byte_range: hunk.diff_base_byte_range,
1597 display_row_range: hunk_display_start.row()..end_row,
1598 multi_buffer_range: Anchor::range_in_buffer(
1599 hunk.excerpt_id,
1600 hunk.buffer_id,
1601 hunk.buffer_range,
1602 ),
1603 }
1604 };
1605
1606 display_hunks.push((display_hunk, None));
1607 }
1608
1609 let git_gutter_setting = ProjectSettings::get_global(cx)
1610 .git
1611 .git_gutter
1612 .unwrap_or_default();
1613 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1614 for (hunk, hitbox) in &mut display_hunks {
1615 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1616 let hunk_bounds =
1617 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1618 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1619 }
1620 }
1621 }
1622
1623 display_hunks
1624 }
1625
1626 #[allow(clippy::too_many_arguments)]
1627 fn layout_inline_blame(
1628 &self,
1629 display_row: DisplayRow,
1630 row_info: &RowInfo,
1631 line_layout: &LineWithInvisibles,
1632 crease_trailer: Option<&CreaseTrailerLayout>,
1633 em_width: Pixels,
1634 content_origin: gpui::Point<Pixels>,
1635 scroll_pixel_position: gpui::Point<Pixels>,
1636 line_height: Pixels,
1637 window: &mut Window,
1638 cx: &mut App,
1639 ) -> Option<AnyElement> {
1640 if !self
1641 .editor
1642 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1643 {
1644 return None;
1645 }
1646
1647 let workspace = self
1648 .editor
1649 .read(cx)
1650 .workspace
1651 .as_ref()
1652 .map(|(w, _)| w.clone());
1653
1654 let editor = self.editor.read(cx);
1655 let blame = editor.blame.clone()?;
1656 let padding = {
1657 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1658 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1659
1660 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1661
1662 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1663 match &inline_completion.completion {
1664 InlineCompletion::Edit {
1665 display_mode: EditDisplayMode::TabAccept,
1666 ..
1667 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1668 _ => {}
1669 }
1670 }
1671
1672 padding * em_width
1673 };
1674
1675 let blame_entry = blame
1676 .update(cx, |blame, cx| {
1677 blame.blame_for_rows(&[*row_info], cx).next()
1678 })
1679 .flatten()?;
1680
1681 let mut element =
1682 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1683
1684 let start_y = content_origin.y
1685 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1686
1687 let start_x = {
1688 let line_end = if let Some(crease_trailer) = crease_trailer {
1689 crease_trailer.bounds.right()
1690 } else {
1691 content_origin.x - scroll_pixel_position.x + line_layout.width
1692 };
1693
1694 let padded_line_end = line_end + padding;
1695
1696 let min_column_in_pixels = ProjectSettings::get_global(cx)
1697 .git
1698 .inline_blame
1699 .and_then(|settings| settings.min_column)
1700 .map(|col| self.column_pixels(col as usize, window, cx))
1701 .unwrap_or(px(0.));
1702 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1703
1704 cmp::max(padded_line_end, min_start)
1705 };
1706
1707 let absolute_offset = point(start_x, start_y);
1708 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1709
1710 Some(element)
1711 }
1712
1713 #[allow(clippy::too_many_arguments)]
1714 fn layout_blame_entries(
1715 &self,
1716 buffer_rows: &[RowInfo],
1717 em_width: Pixels,
1718 scroll_position: gpui::Point<f32>,
1719 line_height: Pixels,
1720 gutter_hitbox: &Hitbox,
1721 max_width: Option<Pixels>,
1722 window: &mut Window,
1723 cx: &mut App,
1724 ) -> Option<Vec<AnyElement>> {
1725 if !self
1726 .editor
1727 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1728 {
1729 return None;
1730 }
1731
1732 let blame = self.editor.read(cx).blame.clone()?;
1733 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1734 blame.blame_for_rows(buffer_rows, cx).collect()
1735 });
1736
1737 let width = if let Some(max_width) = max_width {
1738 AvailableSpace::Definite(max_width)
1739 } else {
1740 AvailableSpace::MaxContent
1741 };
1742 let scroll_top = scroll_position.y * line_height;
1743 let start_x = em_width;
1744
1745 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1746
1747 let shaped_lines = blamed_rows
1748 .into_iter()
1749 .enumerate()
1750 .flat_map(|(ix, blame_entry)| {
1751 if let Some(blame_entry) = blame_entry {
1752 let mut element = render_blame_entry(
1753 ix,
1754 &blame,
1755 blame_entry,
1756 &self.style,
1757 &mut last_used_color,
1758 self.editor.clone(),
1759 cx,
1760 );
1761
1762 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1763 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1764
1765 element.prepaint_as_root(
1766 absolute_offset,
1767 size(width, AvailableSpace::MinContent),
1768 window,
1769 cx,
1770 );
1771
1772 Some(element)
1773 } else {
1774 None
1775 }
1776 })
1777 .collect();
1778
1779 Some(shaped_lines)
1780 }
1781
1782 #[allow(clippy::too_many_arguments)]
1783 fn layout_indent_guides(
1784 &self,
1785 content_origin: gpui::Point<Pixels>,
1786 text_origin: gpui::Point<Pixels>,
1787 visible_buffer_range: Range<MultiBufferRow>,
1788 scroll_pixel_position: gpui::Point<Pixels>,
1789 line_height: Pixels,
1790 snapshot: &DisplaySnapshot,
1791 window: &mut Window,
1792 cx: &mut App,
1793 ) -> Option<Vec<IndentGuideLayout>> {
1794 let indent_guides = self.editor.update(cx, |editor, cx| {
1795 editor.indent_guides(visible_buffer_range, snapshot, cx)
1796 })?;
1797
1798 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1799 editor
1800 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1801 .unwrap_or_default()
1802 });
1803
1804 Some(
1805 indent_guides
1806 .into_iter()
1807 .enumerate()
1808 .filter_map(|(i, indent_guide)| {
1809 let single_indent_width =
1810 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1811 let total_width = single_indent_width * indent_guide.depth as f32;
1812 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1813 if start_x >= text_origin.x {
1814 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1815 indent_guide.start_row..indent_guide.end_row,
1816 line_height,
1817 snapshot,
1818 );
1819
1820 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1821
1822 Some(IndentGuideLayout {
1823 origin: point(start_x, start_y),
1824 length,
1825 single_indent_width,
1826 depth: indent_guide.depth,
1827 active: active_indent_guide_indices.contains(&i),
1828 settings: indent_guide.settings,
1829 })
1830 } else {
1831 None
1832 }
1833 })
1834 .collect(),
1835 )
1836 }
1837
1838 fn calculate_indent_guide_bounds(
1839 row_range: Range<MultiBufferRow>,
1840 line_height: Pixels,
1841 snapshot: &DisplaySnapshot,
1842 ) -> (gpui::Pixels, gpui::Pixels) {
1843 let start_point = Point::new(row_range.start.0, 0);
1844 let end_point = Point::new(row_range.end.0, 0);
1845
1846 let row_range = start_point.to_display_point(snapshot).row()
1847 ..end_point.to_display_point(snapshot).row();
1848
1849 let mut prev_line = start_point;
1850 prev_line.row = prev_line.row.saturating_sub(1);
1851 let prev_line = prev_line.to_display_point(snapshot).row();
1852
1853 let mut cons_line = end_point;
1854 cons_line.row += 1;
1855 let cons_line = cons_line.to_display_point(snapshot).row();
1856
1857 let mut offset_y = row_range.start.0 as f32 * line_height;
1858 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1859
1860 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1861 if row_range.end == cons_line {
1862 length += line_height;
1863 }
1864
1865 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1866 // we want to extend the indent guide to the start of the block.
1867 let mut block_height = 0;
1868 let mut block_offset = 0;
1869 let mut found_excerpt_header = false;
1870 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1871 if matches!(block, Block::ExcerptBoundary { .. }) {
1872 found_excerpt_header = true;
1873 break;
1874 }
1875 block_offset += block.height();
1876 block_height += block.height();
1877 }
1878 if !found_excerpt_header {
1879 offset_y -= block_offset as f32 * line_height;
1880 length += block_height as f32 * line_height;
1881 }
1882
1883 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1884 // we want to ensure that the indent guide stops before the excerpt header.
1885 let mut block_height = 0;
1886 let mut found_excerpt_header = false;
1887 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1888 if matches!(block, Block::ExcerptBoundary { .. }) {
1889 found_excerpt_header = true;
1890 }
1891 block_height += block.height();
1892 }
1893 if found_excerpt_header {
1894 length -= block_height as f32 * line_height;
1895 }
1896
1897 (offset_y, length)
1898 }
1899
1900 #[allow(clippy::too_many_arguments)]
1901 fn layout_run_indicators(
1902 &self,
1903 line_height: Pixels,
1904 range: Range<DisplayRow>,
1905 scroll_pixel_position: gpui::Point<Pixels>,
1906 gutter_dimensions: &GutterDimensions,
1907 gutter_hitbox: &Hitbox,
1908 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1909 snapshot: &EditorSnapshot,
1910 window: &mut Window,
1911 cx: &mut App,
1912 ) -> Vec<AnyElement> {
1913 self.editor.update(cx, |editor, cx| {
1914 let active_task_indicator_row =
1915 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1916 deployed_from_indicator,
1917 actions,
1918 ..
1919 })) = editor.context_menu.borrow().as_ref()
1920 {
1921 actions
1922 .tasks
1923 .as_ref()
1924 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1925 .or(*deployed_from_indicator)
1926 } else {
1927 None
1928 };
1929
1930 let offset_range_start = snapshot
1931 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1932 .to_offset(&snapshot.buffer_snapshot);
1933 let offset_range_end = snapshot
1934 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1935 .to_offset(&snapshot.buffer_snapshot);
1936
1937 editor
1938 .tasks
1939 .iter()
1940 .filter_map(|(_, tasks)| {
1941 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1942 return None;
1943 }
1944 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1945 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1946 let buffer_folded = snapshot
1947 .buffer_snapshot
1948 .buffer_line_for_row(multibuffer_row)
1949 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1950 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1951 .unwrap_or(false);
1952 if buffer_folded {
1953 return None;
1954 }
1955
1956 if snapshot.is_line_folded(multibuffer_row) {
1957 // Skip folded indicators, unless it's the starting line of a fold.
1958 if multibuffer_row
1959 .0
1960 .checked_sub(1)
1961 .map_or(false, |previous_row| {
1962 snapshot.is_line_folded(MultiBufferRow(previous_row))
1963 })
1964 {
1965 return None;
1966 }
1967 }
1968 let display_row = multibuffer_point.to_display_point(snapshot).row();
1969 let button = editor.render_run_indicator(
1970 &self.style,
1971 Some(display_row) == active_task_indicator_row,
1972 display_row,
1973 cx,
1974 );
1975
1976 let button = prepaint_gutter_button(
1977 button,
1978 display_row,
1979 line_height,
1980 gutter_dimensions,
1981 scroll_pixel_position,
1982 gutter_hitbox,
1983 rows_with_hunk_bounds,
1984 window,
1985 cx,
1986 );
1987 Some(button)
1988 })
1989 .collect_vec()
1990 })
1991 }
1992
1993 #[allow(clippy::too_many_arguments)]
1994 fn layout_code_actions_indicator(
1995 &self,
1996 line_height: Pixels,
1997 newest_selection_head: DisplayPoint,
1998 scroll_pixel_position: gpui::Point<Pixels>,
1999 gutter_dimensions: &GutterDimensions,
2000 gutter_hitbox: &Hitbox,
2001 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2002 window: &mut Window,
2003 cx: &mut App,
2004 ) -> Option<AnyElement> {
2005 let mut active = false;
2006 let mut button = None;
2007 let row = newest_selection_head.row();
2008 self.editor.update(cx, |editor, cx| {
2009 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2010 deployed_from_indicator,
2011 ..
2012 })) = editor.context_menu.borrow().as_ref()
2013 {
2014 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2015 };
2016 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2017 });
2018
2019 let button = prepaint_gutter_button(
2020 button?,
2021 row,
2022 line_height,
2023 gutter_dimensions,
2024 scroll_pixel_position,
2025 gutter_hitbox,
2026 rows_with_hunk_bounds,
2027 window,
2028 cx,
2029 );
2030
2031 Some(button)
2032 }
2033
2034 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2035 if let Some(index) = participant_index {
2036 cx.theme().players().color_for_participant(index.0)
2037 } else {
2038 cx.theme().players().absent()
2039 }
2040 }
2041
2042 fn calculate_relative_line_numbers(
2043 &self,
2044 snapshot: &EditorSnapshot,
2045 rows: &Range<DisplayRow>,
2046 relative_to: Option<DisplayRow>,
2047 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2048 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2049 let Some(relative_to) = relative_to else {
2050 return relative_rows;
2051 };
2052
2053 let start = rows.start.min(relative_to);
2054 let end = rows.end.max(relative_to);
2055
2056 let buffer_rows = snapshot
2057 .row_infos(start)
2058 .take(1 + end.minus(start) as usize)
2059 .collect::<Vec<_>>();
2060
2061 let head_idx = relative_to.minus(start);
2062 let mut delta = 1;
2063 let mut i = head_idx + 1;
2064 while i < buffer_rows.len() as u32 {
2065 if buffer_rows[i as usize].buffer_row.is_some() {
2066 if rows.contains(&DisplayRow(i + start.0)) {
2067 relative_rows.insert(DisplayRow(i + start.0), delta);
2068 }
2069 delta += 1;
2070 }
2071 i += 1;
2072 }
2073 delta = 1;
2074 i = head_idx.min(buffer_rows.len() as u32 - 1);
2075 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2076 i -= 1;
2077 }
2078
2079 while i > 0 {
2080 i -= 1;
2081 if buffer_rows[i as usize].buffer_row.is_some() {
2082 if rows.contains(&DisplayRow(i + start.0)) {
2083 relative_rows.insert(DisplayRow(i + start.0), delta);
2084 }
2085 delta += 1;
2086 }
2087 }
2088
2089 relative_rows
2090 }
2091
2092 #[allow(clippy::too_many_arguments)]
2093 fn layout_line_numbers(
2094 &self,
2095 gutter_hitbox: Option<&Hitbox>,
2096 gutter_dimensions: GutterDimensions,
2097 line_height: Pixels,
2098 scroll_position: gpui::Point<f32>,
2099 rows: Range<DisplayRow>,
2100 buffer_rows: &[RowInfo],
2101 newest_selection_head: Option<DisplayPoint>,
2102 snapshot: &EditorSnapshot,
2103 window: &mut Window,
2104 cx: &mut App,
2105 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2106 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2107 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2108 });
2109 if !include_line_numbers {
2110 return Arc::default();
2111 }
2112
2113 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2114 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2115 let newest = editor.selections.newest::<Point>(cx);
2116 SelectionLayout::new(
2117 newest,
2118 editor.selections.line_mode,
2119 editor.cursor_shape,
2120 &snapshot.display_snapshot,
2121 true,
2122 true,
2123 None,
2124 )
2125 .head
2126 });
2127 let is_relative = editor.should_use_relative_line_numbers(cx);
2128 (newest_selection_head, is_relative)
2129 });
2130
2131 let relative_to = if is_relative {
2132 Some(newest_selection_head.row())
2133 } else {
2134 None
2135 };
2136 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2137 let mut line_number = String::new();
2138 let line_numbers = buffer_rows
2139 .into_iter()
2140 .enumerate()
2141 .flat_map(|(ix, row_info)| {
2142 let display_row = DisplayRow(rows.start.0 + ix as u32);
2143 line_number.clear();
2144 let non_relative_number = row_info.buffer_row? + 1;
2145 let number = relative_rows
2146 .get(&display_row)
2147 .unwrap_or(&non_relative_number);
2148 write!(&mut line_number, "{number}").unwrap();
2149 if row_info.diff_status == Some(DiffHunkStatus::Removed) {
2150 return None;
2151 }
2152
2153 let color = cx.theme().colors().editor_line_number;
2154 let shaped_line = self
2155 .shape_line_number(SharedString::from(&line_number), color, window)
2156 .log_err()?;
2157 let scroll_top = scroll_position.y * line_height;
2158 let line_origin = gutter_hitbox.map(|hitbox| {
2159 hitbox.origin
2160 + point(
2161 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2162 ix as f32 * line_height - (scroll_top % line_height),
2163 )
2164 });
2165
2166 #[cfg(not(test))]
2167 let hitbox = line_origin.map(|line_origin| {
2168 window.insert_hitbox(
2169 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2170 false,
2171 )
2172 });
2173 #[cfg(test)]
2174 let hitbox = {
2175 let _ = line_origin;
2176 None
2177 };
2178
2179 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2180 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2181 let line_number = LineNumberLayout {
2182 shaped_line,
2183 hitbox,
2184 display_row,
2185 };
2186 Some((multi_buffer_row, line_number))
2187 })
2188 .collect();
2189 Arc::new(line_numbers)
2190 }
2191
2192 fn layout_crease_toggles(
2193 &self,
2194 rows: Range<DisplayRow>,
2195 row_infos: &[RowInfo],
2196 active_rows: &BTreeMap<DisplayRow, bool>,
2197 snapshot: &EditorSnapshot,
2198 window: &mut Window,
2199 cx: &mut App,
2200 ) -> Vec<Option<AnyElement>> {
2201 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2202 && snapshot.mode == EditorMode::Full
2203 && self.editor.read(cx).is_singleton(cx);
2204 if include_fold_statuses {
2205 row_infos
2206 .into_iter()
2207 .enumerate()
2208 .map(|(ix, info)| {
2209 let row = info.multibuffer_row?;
2210 let display_row = DisplayRow(rows.start.0 + ix as u32);
2211 let active = active_rows.contains_key(&display_row);
2212
2213 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2214 })
2215 .collect()
2216 } else {
2217 Vec::new()
2218 }
2219 }
2220
2221 fn layout_crease_trailers(
2222 &self,
2223 buffer_rows: impl IntoIterator<Item = RowInfo>,
2224 snapshot: &EditorSnapshot,
2225 window: &mut Window,
2226 cx: &mut App,
2227 ) -> Vec<Option<AnyElement>> {
2228 buffer_rows
2229 .into_iter()
2230 .map(|row_info| {
2231 if let Some(row) = row_info.multibuffer_row {
2232 snapshot.render_crease_trailer(row, window, cx)
2233 } else {
2234 None
2235 }
2236 })
2237 .collect()
2238 }
2239
2240 fn layout_lines(
2241 rows: Range<DisplayRow>,
2242 snapshot: &EditorSnapshot,
2243 style: &EditorStyle,
2244 editor_width: Pixels,
2245 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2246 window: &mut Window,
2247 cx: &mut App,
2248 ) -> Vec<LineWithInvisibles> {
2249 if rows.start >= rows.end {
2250 return Vec::new();
2251 }
2252
2253 // Show the placeholder when the editor is empty
2254 if snapshot.is_empty() {
2255 let font_size = style.text.font_size.to_pixels(window.rem_size());
2256 let placeholder_color = cx.theme().colors().text_placeholder;
2257 let placeholder_text = snapshot.placeholder_text();
2258
2259 let placeholder_lines = placeholder_text
2260 .as_ref()
2261 .map_or("", AsRef::as_ref)
2262 .split('\n')
2263 .skip(rows.start.0 as usize)
2264 .chain(iter::repeat(""))
2265 .take(rows.len());
2266 placeholder_lines
2267 .filter_map(move |line| {
2268 let run = TextRun {
2269 len: line.len(),
2270 font: style.text.font(),
2271 color: placeholder_color,
2272 background_color: None,
2273 underline: Default::default(),
2274 strikethrough: None,
2275 };
2276 window
2277 .text_system()
2278 .shape_line(line.to_string().into(), font_size, &[run])
2279 .log_err()
2280 })
2281 .map(|line| LineWithInvisibles {
2282 width: line.width,
2283 len: line.len,
2284 fragments: smallvec![LineFragment::Text(line)],
2285 invisibles: Vec::new(),
2286 font_size,
2287 })
2288 .collect()
2289 } else {
2290 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2291 LineWithInvisibles::from_chunks(
2292 chunks,
2293 &style,
2294 MAX_LINE_LEN,
2295 rows.len(),
2296 snapshot.mode,
2297 editor_width,
2298 is_row_soft_wrapped,
2299 window,
2300 cx,
2301 )
2302 }
2303 }
2304
2305 #[allow(clippy::too_many_arguments)]
2306 fn prepaint_lines(
2307 &self,
2308 start_row: DisplayRow,
2309 line_layouts: &mut [LineWithInvisibles],
2310 line_height: Pixels,
2311 scroll_pixel_position: gpui::Point<Pixels>,
2312 content_origin: gpui::Point<Pixels>,
2313 window: &mut Window,
2314 cx: &mut App,
2315 ) -> SmallVec<[AnyElement; 1]> {
2316 let mut line_elements = SmallVec::new();
2317 for (ix, line) in line_layouts.iter_mut().enumerate() {
2318 let row = start_row + DisplayRow(ix as u32);
2319 line.prepaint(
2320 line_height,
2321 scroll_pixel_position,
2322 row,
2323 content_origin,
2324 &mut line_elements,
2325 window,
2326 cx,
2327 );
2328 }
2329 line_elements
2330 }
2331
2332 #[allow(clippy::too_many_arguments)]
2333 fn render_block(
2334 &self,
2335 block: &Block,
2336 available_width: AvailableSpace,
2337 block_id: BlockId,
2338 block_row_start: DisplayRow,
2339 snapshot: &EditorSnapshot,
2340 text_x: Pixels,
2341 rows: &Range<DisplayRow>,
2342 line_layouts: &[LineWithInvisibles],
2343 gutter_dimensions: &GutterDimensions,
2344 line_height: Pixels,
2345 em_width: Pixels,
2346 text_hitbox: &Hitbox,
2347 editor_width: Pixels,
2348 scroll_width: &mut Pixels,
2349 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2350 selections: &[Selection<Point>],
2351 selected_buffer_ids: &Vec<BufferId>,
2352 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2353 sticky_header_excerpt_id: Option<ExcerptId>,
2354 window: &mut Window,
2355 cx: &mut App,
2356 ) -> (AnyElement, Size<Pixels>) {
2357 let mut element = match block {
2358 Block::Custom(block) => {
2359 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2360 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2361 let align_to = block_start.to_display_point(snapshot);
2362 let anchor_x = text_x
2363 + if rows.contains(&align_to.row()) {
2364 line_layouts[align_to.row().minus(rows.start) as usize]
2365 .x_for_index(align_to.column() as usize)
2366 } else {
2367 layout_line(
2368 align_to.row(),
2369 snapshot,
2370 &self.style,
2371 editor_width,
2372 is_row_soft_wrapped,
2373 window,
2374 cx,
2375 )
2376 .x_for_index(align_to.column() as usize)
2377 };
2378
2379 let selected = selections
2380 .binary_search_by(|selection| {
2381 if selection.end <= block_start {
2382 Ordering::Less
2383 } else if selection.start >= block_end {
2384 Ordering::Greater
2385 } else {
2386 Ordering::Equal
2387 }
2388 })
2389 .is_ok();
2390
2391 div()
2392 .size_full()
2393 .child(block.render(&mut BlockContext {
2394 window,
2395 app: cx,
2396 anchor_x,
2397 gutter_dimensions,
2398 line_height,
2399 em_width,
2400 block_id,
2401 selected,
2402 max_width: text_hitbox.size.width.max(*scroll_width),
2403 editor_style: &self.style,
2404 }))
2405 .into_any()
2406 }
2407
2408 Block::FoldedBuffer {
2409 first_excerpt,
2410 prev_excerpt,
2411 show_excerpt_controls,
2412 height,
2413 } => {
2414 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2415 let icon_offset = gutter_dimensions.width
2416 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2417 let mut result = v_flex().id(block_id).w_full();
2418
2419 if let Some(prev_excerpt) = prev_excerpt {
2420 if *show_excerpt_controls {
2421 result =
2422 result.child(
2423 h_flex()
2424 .id("expand_down_hit_area")
2425 .w(icon_offset)
2426 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2427 * window.line_height())
2428 .flex_none()
2429 .justify_end()
2430 .child(self.render_expand_excerpt_button(
2431 IconName::ArrowDownFromLine,
2432 None,
2433 cx,
2434 ))
2435 .on_click(window.listener_for(&self.editor, {
2436 let excerpt_id = prev_excerpt.id;
2437 let direction = ExpandExcerptDirection::Down;
2438 move |editor, _, _, cx| {
2439 editor.expand_excerpt(excerpt_id, direction, cx);
2440 cx.stop_propagation();
2441 }
2442 })),
2443 );
2444 }
2445 }
2446
2447 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2448 result
2449 .child(self.render_buffer_header(
2450 first_excerpt,
2451 true,
2452 selected,
2453 jump_data,
2454 window,
2455 cx,
2456 ))
2457 .into_any_element()
2458 }
2459
2460 Block::ExcerptBoundary {
2461 prev_excerpt,
2462 next_excerpt,
2463 show_excerpt_controls,
2464 height,
2465 starts_new_buffer,
2466 } => {
2467 let icon_offset = gutter_dimensions.width
2468 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2469 let header_height =
2470 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2471 let color = cx.theme().colors().clone();
2472 let hover_color = color.border_variant.opacity(0.5);
2473 let focus_handle = self.editor.focus_handle(cx).clone();
2474
2475 let mut result = v_flex().id(block_id).w_full();
2476 let expand_area = |id: SharedString| {
2477 h_flex()
2478 .id(id)
2479 .w_full()
2480 .cursor_pointer()
2481 .block_mouse_down()
2482 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2483 .hover(|style| style.bg(hover_color))
2484 .tooltip({
2485 let focus_handle = focus_handle.clone();
2486 move |window, cx| {
2487 Tooltip::for_action_in(
2488 "Expand Excerpt",
2489 &ExpandExcerpts { lines: 0 },
2490 &focus_handle,
2491 window,
2492 cx,
2493 )
2494 }
2495 })
2496 };
2497
2498 if let Some(prev_excerpt) = prev_excerpt {
2499 if *show_excerpt_controls {
2500 let group_name = "expand-down";
2501
2502 result = result.child(
2503 expand_area(format!("block-{}-down", block_id).into())
2504 .group(group_name)
2505 .child(
2506 h_flex()
2507 .w(icon_offset)
2508 .h(header_height)
2509 .flex_none()
2510 .justify_end()
2511 .child(self.render_expand_excerpt_button(
2512 IconName::ArrowDownFromLine,
2513 Some(group_name.to_string()),
2514 cx,
2515 )),
2516 )
2517 .on_click(window.listener_for(&self.editor, {
2518 let excerpt_id = prev_excerpt.id;
2519 let direction = ExpandExcerptDirection::Down;
2520 move |editor, _, _, cx| {
2521 editor.expand_excerpt(excerpt_id, direction, cx);
2522 cx.stop_propagation();
2523 }
2524 })),
2525 );
2526 }
2527 }
2528
2529 if let Some(next_excerpt) = next_excerpt {
2530 let jump_data =
2531 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2532
2533 if *starts_new_buffer {
2534 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2535 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2536
2537 result = result.child(self.render_buffer_header(
2538 next_excerpt,
2539 false,
2540 selected,
2541 jump_data,
2542 window,
2543 cx,
2544 ));
2545 } else {
2546 result = result
2547 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2548 }
2549
2550 if *show_excerpt_controls {
2551 let group_name = "expand-up-first";
2552
2553 result = result.child(
2554 h_flex().group(group_name).child(
2555 expand_area(format!("block-{}-up-first", block_id).into())
2556 .h(header_height)
2557 .child(
2558 h_flex()
2559 .w(icon_offset)
2560 .h(header_height)
2561 .flex_none()
2562 .justify_end()
2563 .child(self.render_expand_excerpt_button(
2564 IconName::ArrowUpFromLine,
2565 Some(group_name.to_string()),
2566 cx,
2567 )),
2568 )
2569 .on_click(window.listener_for(&self.editor, {
2570 let excerpt_id = next_excerpt.id;
2571 let direction = ExpandExcerptDirection::Up;
2572 move |editor, _, _, cx| {
2573 editor.expand_excerpt(excerpt_id, direction, cx);
2574 cx.stop_propagation();
2575 }
2576 })),
2577 ),
2578 );
2579 }
2580 } else {
2581 let group_name = "expand-up-subsequent";
2582
2583 if *show_excerpt_controls {
2584 result = result.child(
2585 h_flex()
2586 .relative()
2587 .group(group_name)
2588 .child(
2589 div()
2590 .top(px(0.))
2591 .absolute()
2592 .w_full()
2593 .h_px()
2594 .bg(color.border_variant),
2595 )
2596 .child(
2597 expand_area(format!("block-{}-up", block_id).into())
2598 .h(header_height)
2599 .child(
2600 h_flex()
2601 .w(icon_offset)
2602 .h(header_height)
2603 .flex_none()
2604 .justify_end()
2605 .child(if *show_excerpt_controls {
2606 self.render_expand_excerpt_button(
2607 IconName::ArrowUpFromLine,
2608 Some(group_name.to_string()),
2609 cx,
2610 )
2611 } else {
2612 ButtonLike::new("jump-icon")
2613 .style(ButtonStyle::Transparent)
2614 .child(
2615 svg()
2616 .path(
2617 IconName::ArrowUpRight
2618 .path(),
2619 )
2620 .size(IconSize::XSmall.rems())
2621 .text_color(
2622 color.border_variant,
2623 )
2624 .group_hover(
2625 group_name,
2626 |style| {
2627 style.text_color(
2628 color.border,
2629 )
2630 },
2631 ),
2632 )
2633 }),
2634 )
2635 .on_click(window.listener_for(&self.editor, {
2636 let excerpt_id = next_excerpt.id;
2637 let direction = ExpandExcerptDirection::Up;
2638 move |editor, _, _, cx| {
2639 editor
2640 .expand_excerpt(excerpt_id, direction, cx);
2641 cx.stop_propagation();
2642 }
2643 })),
2644 ),
2645 );
2646 }
2647 };
2648 }
2649
2650 result.into_any()
2651 }
2652 };
2653
2654 // Discover the element's content height, then round up to the nearest multiple of line height.
2655 let preliminary_size = element.layout_as_root(
2656 size(available_width, AvailableSpace::MinContent),
2657 window,
2658 cx,
2659 );
2660 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2661 let final_size = if preliminary_size.height == quantized_height {
2662 preliminary_size
2663 } else {
2664 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2665 };
2666
2667 if let BlockId::Custom(custom_block_id) = block_id {
2668 if block.height() > 0 {
2669 let element_height_in_lines =
2670 ((final_size.height / line_height).ceil() as u32).max(1);
2671 if element_height_in_lines != block.height() {
2672 resized_blocks.insert(custom_block_id, element_height_in_lines);
2673 }
2674 }
2675 }
2676
2677 (element, final_size)
2678 }
2679
2680 fn render_buffer_header(
2681 &self,
2682 for_excerpt: &ExcerptInfo,
2683 is_folded: bool,
2684 is_selected: bool,
2685 jump_data: JumpData,
2686 window: &mut Window,
2687 cx: &mut App,
2688 ) -> Div {
2689 let include_root = self
2690 .editor
2691 .read(cx)
2692 .project
2693 .as_ref()
2694 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2695 .unwrap_or_default();
2696 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2697 let filename = path
2698 .as_ref()
2699 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2700 let parent_path = path.as_ref().and_then(|path| {
2701 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2702 });
2703 let focus_handle = self.editor.focus_handle(cx);
2704 let colors = cx.theme().colors();
2705
2706 div()
2707 .px_2()
2708 .pt_2()
2709 .w_full()
2710 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2711 .child(
2712 h_flex()
2713 .size_full()
2714 .gap_2()
2715 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2716 .pl_0p5()
2717 .pr_5()
2718 .rounded_md()
2719 .shadow_md()
2720 .border_1()
2721 .map(|div| {
2722 let border_color = if is_selected && is_folded {
2723 colors.border_focused
2724 } else {
2725 colors.border
2726 };
2727 div.border_color(border_color)
2728 })
2729 .bg(colors.editor_subheader_background)
2730 .hover(|style| style.bg(colors.element_hover))
2731 .map(|header| {
2732 let editor = self.editor.clone();
2733 let buffer_id = for_excerpt.buffer_id;
2734 let toggle_chevron_icon =
2735 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2736 header.child(
2737 div()
2738 .hover(|style| style.bg(colors.element_selected))
2739 .rounded_sm()
2740 .child(
2741 ButtonLike::new("toggle-buffer-fold")
2742 .style(ui::ButtonStyle::Transparent)
2743 .size(ButtonSize::Large)
2744 .width(px(30.).into())
2745 .children(toggle_chevron_icon)
2746 .tooltip({
2747 let focus_handle = focus_handle.clone();
2748 move |window, cx| {
2749 Tooltip::for_action_in(
2750 "Toggle Excerpt Fold",
2751 &ToggleFold,
2752 &focus_handle,
2753 window,
2754 cx,
2755 )
2756 }
2757 })
2758 .on_click(move |_, _, cx| {
2759 if is_folded {
2760 editor.update(cx, |editor, cx| {
2761 editor.unfold_buffer(buffer_id, cx);
2762 });
2763 } else {
2764 editor.update(cx, |editor, cx| {
2765 editor.fold_buffer(buffer_id, cx);
2766 });
2767 }
2768 }),
2769 ),
2770 )
2771 })
2772 .child(
2773 h_flex()
2774 .cursor_pointer()
2775 .id("path header block")
2776 .size_full()
2777 .justify_between()
2778 .child(
2779 h_flex()
2780 .gap_2()
2781 .child(
2782 filename
2783 .map(SharedString::from)
2784 .unwrap_or_else(|| "untitled".into()),
2785 )
2786 .when_some(parent_path, |then, path| {
2787 then.child(div().child(path).text_color(colors.text_muted))
2788 }),
2789 )
2790 .when(is_selected, |el| {
2791 el.child(
2792 h_flex()
2793 .id("jump-to-file-button")
2794 .gap_2p5()
2795 .child(Label::new("Jump To File"))
2796 .children(
2797 KeyBinding::for_action_in(
2798 &OpenExcerpts,
2799 &focus_handle,
2800 window,
2801 )
2802 .map(|binding| binding.into_any_element()),
2803 ),
2804 )
2805 })
2806 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2807 .on_click(window.listener_for(&self.editor, {
2808 move |editor, e: &ClickEvent, window, cx| {
2809 editor.open_excerpts_common(
2810 Some(jump_data.clone()),
2811 e.down.modifiers.secondary(),
2812 window,
2813 cx,
2814 );
2815 }
2816 })),
2817 ),
2818 )
2819 }
2820
2821 fn render_expand_excerpt_button(
2822 &self,
2823 icon: IconName,
2824 group_name: impl Into<Option<String>>,
2825 cx: &mut App,
2826 ) -> ButtonLike {
2827 let group_name = group_name.into();
2828 ButtonLike::new("expand-icon")
2829 .style(ButtonStyle::Transparent)
2830 .child(
2831 svg()
2832 .path(icon.path())
2833 .size(IconSize::XSmall.rems())
2834 .text_color(cx.theme().colors().editor_line_number)
2835 .when_some(group_name, |svg, group_name| {
2836 svg.group_hover(group_name, |style| {
2837 style.text_color(cx.theme().colors().editor_active_line_number)
2838 })
2839 }),
2840 )
2841 }
2842
2843 #[allow(clippy::too_many_arguments)]
2844 fn render_blocks(
2845 &self,
2846 rows: Range<DisplayRow>,
2847 snapshot: &EditorSnapshot,
2848 hitbox: &Hitbox,
2849 text_hitbox: &Hitbox,
2850 editor_width: Pixels,
2851 scroll_width: &mut Pixels,
2852 gutter_dimensions: &GutterDimensions,
2853 em_width: Pixels,
2854 text_x: Pixels,
2855 line_height: Pixels,
2856 line_layouts: &[LineWithInvisibles],
2857 selections: &[Selection<Point>],
2858 selected_buffer_ids: &Vec<BufferId>,
2859 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2860 sticky_header_excerpt_id: Option<ExcerptId>,
2861 window: &mut Window,
2862 cx: &mut App,
2863 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2864 let (fixed_blocks, non_fixed_blocks) = snapshot
2865 .blocks_in_range(rows.clone())
2866 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2867
2868 let mut focused_block = self
2869 .editor
2870 .update(cx, |editor, _| editor.take_focused_block());
2871 let mut fixed_block_max_width = Pixels::ZERO;
2872 let mut blocks = Vec::new();
2873 let mut resized_blocks = HashMap::default();
2874
2875 for (row, block) in fixed_blocks {
2876 let block_id = block.id();
2877
2878 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2879 focused_block = None;
2880 }
2881
2882 let (element, element_size) = self.render_block(
2883 block,
2884 AvailableSpace::MinContent,
2885 block_id,
2886 row,
2887 snapshot,
2888 text_x,
2889 &rows,
2890 line_layouts,
2891 gutter_dimensions,
2892 line_height,
2893 em_width,
2894 text_hitbox,
2895 editor_width,
2896 scroll_width,
2897 &mut resized_blocks,
2898 selections,
2899 selected_buffer_ids,
2900 is_row_soft_wrapped,
2901 sticky_header_excerpt_id,
2902 window,
2903 cx,
2904 );
2905 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2906 blocks.push(BlockLayout {
2907 id: block_id,
2908 row: Some(row),
2909 element,
2910 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2911 style: BlockStyle::Fixed,
2912 });
2913 }
2914
2915 for (row, block) in non_fixed_blocks {
2916 let style = block.style();
2917 let width = match style {
2918 BlockStyle::Sticky => hitbox.size.width,
2919 BlockStyle::Flex => hitbox
2920 .size
2921 .width
2922 .max(fixed_block_max_width)
2923 .max(gutter_dimensions.width + *scroll_width),
2924 BlockStyle::Fixed => unreachable!(),
2925 };
2926 let block_id = block.id();
2927
2928 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2929 focused_block = None;
2930 }
2931
2932 let (element, element_size) = self.render_block(
2933 block,
2934 width.into(),
2935 block_id,
2936 row,
2937 snapshot,
2938 text_x,
2939 &rows,
2940 line_layouts,
2941 gutter_dimensions,
2942 line_height,
2943 em_width,
2944 text_hitbox,
2945 editor_width,
2946 scroll_width,
2947 &mut resized_blocks,
2948 selections,
2949 selected_buffer_ids,
2950 is_row_soft_wrapped,
2951 sticky_header_excerpt_id,
2952 window,
2953 cx,
2954 );
2955
2956 blocks.push(BlockLayout {
2957 id: block_id,
2958 row: Some(row),
2959 element,
2960 available_space: size(width.into(), element_size.height.into()),
2961 style,
2962 });
2963 }
2964
2965 if let Some(focused_block) = focused_block {
2966 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2967 if focus_handle.is_focused(window) {
2968 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2969 let style = block.style();
2970 let width = match style {
2971 BlockStyle::Fixed => AvailableSpace::MinContent,
2972 BlockStyle::Flex => AvailableSpace::Definite(
2973 hitbox
2974 .size
2975 .width
2976 .max(fixed_block_max_width)
2977 .max(gutter_dimensions.width + *scroll_width),
2978 ),
2979 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2980 };
2981
2982 let (element, element_size) = self.render_block(
2983 &block,
2984 width,
2985 focused_block.id,
2986 rows.end,
2987 snapshot,
2988 text_x,
2989 &rows,
2990 line_layouts,
2991 gutter_dimensions,
2992 line_height,
2993 em_width,
2994 text_hitbox,
2995 editor_width,
2996 scroll_width,
2997 &mut resized_blocks,
2998 selections,
2999 selected_buffer_ids,
3000 is_row_soft_wrapped,
3001 sticky_header_excerpt_id,
3002 window,
3003 cx,
3004 );
3005
3006 blocks.push(BlockLayout {
3007 id: block.id(),
3008 row: None,
3009 element,
3010 available_space: size(width, element_size.height.into()),
3011 style,
3012 });
3013 }
3014 }
3015 }
3016 }
3017
3018 if resized_blocks.is_empty() {
3019 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3020 Ok(blocks)
3021 } else {
3022 Err(resized_blocks)
3023 }
3024 }
3025
3026 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3027 /// a restart of rendering for the editor based on the new sizes.
3028 #[allow(clippy::too_many_arguments)]
3029 fn layout_blocks(
3030 &self,
3031 blocks: &mut Vec<BlockLayout>,
3032 block_starts: &mut HashSet<DisplayRow>,
3033 hitbox: &Hitbox,
3034 line_height: Pixels,
3035 scroll_pixel_position: gpui::Point<Pixels>,
3036 window: &mut Window,
3037 cx: &mut App,
3038 ) {
3039 for block in blocks {
3040 let mut origin = if let Some(row) = block.row {
3041 block_starts.insert(row);
3042 hitbox.origin
3043 + point(
3044 Pixels::ZERO,
3045 row.as_f32() * line_height - scroll_pixel_position.y,
3046 )
3047 } else {
3048 // Position the block outside the visible area
3049 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3050 };
3051
3052 if !matches!(block.style, BlockStyle::Sticky) {
3053 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3054 }
3055
3056 let focus_handle =
3057 block
3058 .element
3059 .prepaint_as_root(origin, block.available_space, window, cx);
3060
3061 if let Some(focus_handle) = focus_handle {
3062 self.editor.update(cx, |editor, _cx| {
3063 editor.set_focused_block(FocusedBlock {
3064 id: block.id,
3065 focus_handle: focus_handle.downgrade(),
3066 });
3067 });
3068 }
3069 }
3070 }
3071
3072 #[allow(clippy::too_many_arguments)]
3073 fn layout_sticky_buffer_header(
3074 &self,
3075 StickyHeaderExcerpt {
3076 excerpt,
3077 next_excerpt_controls_present,
3078 next_buffer_row,
3079 }: StickyHeaderExcerpt<'_>,
3080 scroll_position: f32,
3081 line_height: Pixels,
3082 snapshot: &EditorSnapshot,
3083 hitbox: &Hitbox,
3084 selected_buffer_ids: &Vec<BufferId>,
3085 window: &mut Window,
3086 cx: &mut App,
3087 ) -> AnyElement {
3088 let jump_data = header_jump_data(
3089 snapshot,
3090 DisplayRow(scroll_position as u32),
3091 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3092 excerpt,
3093 );
3094
3095 let editor_bg_color = cx.theme().colors().editor_background;
3096
3097 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3098
3099 let mut header = v_flex()
3100 .relative()
3101 .child(
3102 div()
3103 .w(hitbox.bounds.size.width)
3104 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3105 .bg(linear_gradient(
3106 0.,
3107 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3108 linear_color_stop(editor_bg_color, 0.6),
3109 ))
3110 .absolute()
3111 .top_0(),
3112 )
3113 .child(
3114 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3115 .into_any_element(),
3116 )
3117 .into_any_element();
3118
3119 let mut origin = hitbox.origin;
3120
3121 if let Some(next_buffer_row) = next_buffer_row {
3122 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3123
3124 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3125
3126 if next_excerpt_controls_present {
3127 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3128 }
3129
3130 let offset = scroll_position - max_row as f32;
3131
3132 if offset > 0.0 {
3133 origin.y -= Pixels(offset) * line_height;
3134 }
3135 }
3136
3137 let size = size(
3138 AvailableSpace::Definite(hitbox.size.width),
3139 AvailableSpace::MinContent,
3140 );
3141
3142 header.prepaint_as_root(origin, size, window, cx);
3143
3144 header
3145 }
3146
3147 #[allow(clippy::too_many_arguments)]
3148 fn layout_context_menu(
3149 &self,
3150 line_height: Pixels,
3151 text_hitbox: &Hitbox,
3152 content_origin: gpui::Point<Pixels>,
3153 start_row: DisplayRow,
3154 scroll_pixel_position: gpui::Point<Pixels>,
3155 line_layouts: &[LineWithInvisibles],
3156 newest_selection_head: DisplayPoint,
3157 gutter_overshoot: Pixels,
3158 window: &mut Window,
3159 cx: &mut App,
3160 ) {
3161 let Some(context_menu_origin) = self
3162 .editor
3163 .read(cx)
3164 .context_menu_origin(newest_selection_head)
3165 else {
3166 return;
3167 };
3168 let target_position = content_origin
3169 + match context_menu_origin {
3170 crate::ContextMenuOrigin::EditorPoint(display_point) => {
3171 let cursor_row_layout =
3172 &line_layouts[display_point.row().minus(start_row) as usize];
3173 gpui::Point {
3174 x: cmp::max(
3175 px(0.),
3176 cursor_row_layout.x_for_index(display_point.column() as usize)
3177 - scroll_pixel_position.x,
3178 ),
3179 y: cmp::max(
3180 px(0.),
3181 display_point.row().next_row().as_f32() * line_height
3182 - scroll_pixel_position.y,
3183 ),
3184 }
3185 }
3186 crate::ContextMenuOrigin::GutterIndicator(row) => {
3187 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the indicator than just a plain first column of the
3188 // text field.
3189 gpui::Point {
3190 x: -gutter_overshoot,
3191 y: row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3192 }
3193 }
3194 };
3195
3196 let viewport_bounds =
3197 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3198 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3199 ..Default::default()
3200 });
3201
3202 // If the context menu's max height won't fit below, then flip it above the line and display
3203 // it in reverse order. If the available space above is less than below.
3204 let unconstrained_max_height = line_height * 12. + POPOVER_Y_PADDING;
3205 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3206 let bottom_y_when_flipped = target_position.y - line_height;
3207 let available_above = bottom_y_when_flipped - text_hitbox.top();
3208 let available_below = text_hitbox.bottom() - target_position.y;
3209 let y_overflows_below = unconstrained_max_height > available_below;
3210 let mut y_flipped = y_overflows_below && available_above > available_below;
3211 let mut height = cmp::min(
3212 unconstrained_max_height,
3213 if y_flipped {
3214 available_above
3215 } else {
3216 available_below
3217 },
3218 );
3219
3220 // If less than 3 lines fit within the text bounds, instead fit within the window.
3221 if height < min_height {
3222 let available_above = bottom_y_when_flipped;
3223 let available_below = viewport_bounds.bottom() - target_position.y;
3224 if available_below > 3. * line_height {
3225 y_flipped = false;
3226 height = min_height;
3227 } else if available_above > 3. * line_height {
3228 y_flipped = true;
3229 height = min_height;
3230 } else if available_above > available_below {
3231 y_flipped = true;
3232 height = available_above;
3233 } else {
3234 y_flipped = false;
3235 height = available_below;
3236 }
3237 }
3238
3239 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3240
3241 // TODO(mgsloan): use viewport_bounds.width as a max width when rendering menu.
3242 let Some(mut menu_element) = self.editor.update(cx, |editor, cx| {
3243 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3244 }) else {
3245 return;
3246 };
3247
3248 let menu_size = menu_element.layout_as_root(AvailableSpace::min_size(), window, cx);
3249 let menu_position = gpui::Point {
3250 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3251 // overflow. Include space for the scrollbar.
3252 x: target_position
3253 .x
3254 .min((viewport_bounds.right() - menu_size.width).max(Pixels::ZERO)),
3255 y: if y_flipped {
3256 bottom_y_when_flipped - menu_size.height
3257 } else {
3258 target_position.y
3259 },
3260 };
3261 window.defer_draw(menu_element, menu_position, 1);
3262
3263 // Layout documentation aside
3264 let menu_bounds = Bounds::new(menu_position, menu_size);
3265 let max_menu_size = size(menu_size.width, unconstrained_max_height);
3266 let max_menu_bounds = if y_flipped {
3267 Bounds::new(
3268 point(
3269 menu_position.x,
3270 bottom_y_when_flipped - max_menu_size.height,
3271 ),
3272 max_menu_size,
3273 )
3274 } else {
3275 Bounds::new(target_position, max_menu_size)
3276 };
3277 self.layout_context_menu_aside(
3278 text_hitbox,
3279 y_flipped,
3280 menu_position,
3281 menu_bounds,
3282 max_menu_bounds,
3283 unconstrained_max_height,
3284 line_height,
3285 viewport_bounds,
3286 window,
3287 cx,
3288 );
3289 }
3290
3291 #[allow(clippy::too_many_arguments)]
3292 fn layout_context_menu_aside(
3293 &self,
3294 text_hitbox: &Hitbox,
3295 y_flipped: bool,
3296 menu_position: gpui::Point<Pixels>,
3297 menu_bounds: Bounds<Pixels>,
3298 max_menu_bounds: Bounds<Pixels>,
3299 max_height: Pixels,
3300 line_height: Pixels,
3301 viewport_bounds: Bounds<Pixels>,
3302 window: &mut Window,
3303 cx: &mut App,
3304 ) {
3305 let mut extend_amount = Edges::all(MENU_GAP);
3306 // Extend to include the cursored line to avoid overlapping it.
3307 if y_flipped {
3308 extend_amount.bottom = line_height;
3309 } else {
3310 extend_amount.top = line_height;
3311 }
3312 let target_bounds = menu_bounds.extend(extend_amount);
3313 let max_target_bounds = max_menu_bounds.extend(extend_amount);
3314
3315 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3316 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH {
3317 let max_width = cmp::min(
3318 available_within_viewport.right - px(1.),
3319 MENU_ASIDE_MAX_WIDTH,
3320 );
3321 let Some(mut aside) =
3322 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3323 else {
3324 return;
3325 };
3326 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3327 let right_position = point(target_bounds.right(), menu_position.y);
3328 Some((aside, right_position))
3329 } else {
3330 let max_size = size(
3331 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3332 // won't be needed here.
3333 cmp::min(
3334 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3335 viewport_bounds.right(),
3336 ),
3337 cmp::min(
3338 max_height,
3339 cmp::max(
3340 available_within_viewport.top,
3341 available_within_viewport.bottom,
3342 ),
3343 ) - POPOVER_Y_PADDING,
3344 );
3345 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3346 return;
3347 };
3348 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3349
3350 let top_position = point(menu_position.x, target_bounds.top() - actual_size.height);
3351 let bottom_position = point(menu_position.x, target_bounds.bottom());
3352
3353 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3354 // Prefer to fit on the same side of the line as the menu, then on the other side of
3355 // the line.
3356 if !y_flipped && wanted.height < available.bottom {
3357 Some(bottom_position)
3358 } else if !y_flipped && wanted.height < available.top {
3359 Some(top_position)
3360 } else if y_flipped && wanted.height < available.top {
3361 Some(top_position)
3362 } else if y_flipped && wanted.height < available.bottom {
3363 Some(bottom_position)
3364 } else {
3365 None
3366 }
3367 };
3368
3369 // Prefer choosing a direction using max sizes rather than actual size for stability.
3370 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3371 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3372 let aside_position = fit_within(available_within_text, wanted)
3373 // Fallback: fit max size in window.
3374 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3375 // Fallback: fit actual size in window.
3376 .or_else(|| fit_within(available_within_viewport, actual_size));
3377
3378 aside_position.map(|position| (aside, position))
3379 };
3380
3381 // Skip drawing if it doesn't fit anywhere.
3382 if let Some((aside, position)) = positioned_aside {
3383 window.defer_draw(aside, position, 1);
3384 }
3385 }
3386
3387 fn render_context_menu_aside(
3388 &self,
3389 max_size: Size<Pixels>,
3390
3391 cx: &mut App,
3392 ) -> Option<AnyElement> {
3393 if max_size.width < px(100.) || max_size.height < px(12.) {
3394 None
3395 } else {
3396 self.editor.update(cx, |editor, cx| {
3397 editor.render_context_menu_aside(&self.style, max_size, cx)
3398 })
3399 }
3400 }
3401
3402 #[allow(clippy::too_many_arguments)]
3403 fn layout_inline_completion_popover(
3404 &self,
3405 text_bounds: &Bounds<Pixels>,
3406 editor_snapshot: &EditorSnapshot,
3407 visible_row_range: Range<DisplayRow>,
3408 scroll_top: f32,
3409 scroll_bottom: f32,
3410 line_layouts: &[LineWithInvisibles],
3411 line_height: Pixels,
3412 scroll_pixel_position: gpui::Point<Pixels>,
3413 editor_width: Pixels,
3414 style: &EditorStyle,
3415 window: &mut Window,
3416 cx: &mut App,
3417 ) -> Option<AnyElement> {
3418 const PADDING_X: Pixels = Pixels(24.);
3419 const PADDING_Y: Pixels = Pixels(2.);
3420
3421 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3422
3423 match &active_inline_completion.completion {
3424 InlineCompletion::Move(target_position) => {
3425 let target_display_point = target_position.to_display_point(editor_snapshot);
3426 if target_display_point.row().as_f32() < scroll_top {
3427 let mut element = inline_completion_tab_indicator(
3428 "Jump to Edit",
3429 Some(IconName::ArrowUp),
3430 cx,
3431 );
3432 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3433 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3434 element.prepaint_at(text_bounds.origin + offset, window, cx);
3435 Some(element)
3436 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3437 let mut element = inline_completion_tab_indicator(
3438 "Jump to Edit",
3439 Some(IconName::ArrowDown),
3440 cx,
3441 );
3442 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3443 let offset = point(
3444 (text_bounds.size.width - size.width) / 2.,
3445 text_bounds.size.height - size.height - PADDING_Y,
3446 );
3447 element.prepaint_at(text_bounds.origin + offset, window, cx);
3448 Some(element)
3449 } else {
3450 let mut element = inline_completion_tab_indicator("Jump to Edit", None, cx);
3451
3452 let target_line_end = DisplayPoint::new(
3453 target_display_point.row(),
3454 editor_snapshot.line_len(target_display_point.row()),
3455 );
3456 let origin = self.editor.update(cx, |editor, _cx| {
3457 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3458 })?;
3459 element.prepaint_as_root(
3460 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3461 AvailableSpace::min_size(),
3462 window,
3463 cx,
3464 );
3465 Some(element)
3466 }
3467 }
3468 InlineCompletion::Edit {
3469 edits,
3470 display_mode,
3471 } => {
3472 if self.editor.read(cx).has_active_completions_menu() {
3473 return None;
3474 }
3475
3476 let edit_start = edits
3477 .first()
3478 .unwrap()
3479 .0
3480 .start
3481 .to_display_point(editor_snapshot);
3482 let edit_end = edits
3483 .last()
3484 .unwrap()
3485 .0
3486 .end
3487 .to_display_point(editor_snapshot);
3488
3489 let is_visible = visible_row_range.contains(&edit_start.row())
3490 || visible_row_range.contains(&edit_end.row());
3491 if !is_visible {
3492 return None;
3493 }
3494
3495 match display_mode {
3496 EditDisplayMode::TabAccept => {
3497 let range = &edits.first()?.0;
3498 let target_display_point = range.end.to_display_point(editor_snapshot);
3499
3500 let target_line_end = DisplayPoint::new(
3501 target_display_point.row(),
3502 editor_snapshot.line_len(target_display_point.row()),
3503 );
3504 let origin = self.editor.update(cx, |editor, _cx| {
3505 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3506 })?;
3507
3508 let mut element = inline_completion_tab_indicator("Accept", None, cx);
3509
3510 element.prepaint_as_root(
3511 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3512 AvailableSpace::min_size(),
3513 window,
3514 cx,
3515 );
3516
3517 return Some(element);
3518 }
3519 EditDisplayMode::Inline => return None,
3520 EditDisplayMode::DiffPopover => {}
3521 }
3522
3523 let crate::InlineCompletionText::Edit { text, highlights } =
3524 crate::inline_completion_edit_text(editor_snapshot, edits, false, cx)
3525 else {
3526 return None;
3527 };
3528
3529 let line_count = text.lines().count() + 1;
3530
3531 let longest_row =
3532 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3533 let longest_line_width = if visible_row_range.contains(&longest_row) {
3534 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3535 } else {
3536 layout_line(
3537 longest_row,
3538 editor_snapshot,
3539 style,
3540 editor_width,
3541 |_| false,
3542 window,
3543 cx,
3544 )
3545 .width
3546 };
3547
3548 let styled_text =
3549 gpui::StyledText::new(text.clone()).with_highlights(&style.text, highlights);
3550
3551 let mut element = div()
3552 .bg(cx.theme().colors().editor_background)
3553 .border_1()
3554 .border_color(cx.theme().colors().border)
3555 .rounded_md()
3556 .px_1()
3557 .child(styled_text)
3558 .into_any();
3559
3560 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3561 let is_fully_visible =
3562 editor_width >= longest_line_width + PADDING_X + element_bounds.width;
3563
3564 let origin = if is_fully_visible {
3565 text_bounds.origin
3566 + point(
3567 longest_line_width + PADDING_X - scroll_pixel_position.x,
3568 edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
3569 )
3570 } else {
3571 let target_above =
3572 DisplayRow(edit_start.row().0.saturating_sub(line_count as u32));
3573 let row_target = if visible_row_range
3574 .contains(&DisplayRow(target_above.0.saturating_sub(1)))
3575 {
3576 target_above
3577 } else {
3578 DisplayRow(edit_end.row().0 + 1)
3579 };
3580
3581 text_bounds.origin
3582 + point(
3583 -scroll_pixel_position.x,
3584 row_target.as_f32() * line_height - scroll_pixel_position.y,
3585 )
3586 };
3587
3588 element.prepaint_as_root(origin, element_bounds.into(), window, cx);
3589 Some(element)
3590 }
3591 }
3592 }
3593
3594 fn layout_mouse_context_menu(
3595 &self,
3596 editor_snapshot: &EditorSnapshot,
3597 visible_range: Range<DisplayRow>,
3598 content_origin: gpui::Point<Pixels>,
3599 window: &mut Window,
3600 cx: &mut App,
3601 ) -> Option<AnyElement> {
3602 let position = self.editor.update(cx, |editor, _cx| {
3603 let visible_start_point = editor.display_to_pixel_point(
3604 DisplayPoint::new(visible_range.start, 0),
3605 editor_snapshot,
3606 window,
3607 )?;
3608 let visible_end_point = editor.display_to_pixel_point(
3609 DisplayPoint::new(visible_range.end, 0),
3610 editor_snapshot,
3611 window,
3612 )?;
3613
3614 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3615 let (source_display_point, position) = match mouse_context_menu.position {
3616 MenuPosition::PinnedToScreen(point) => (None, point),
3617 MenuPosition::PinnedToEditor { source, offset } => {
3618 let source_display_point = source.to_display_point(editor_snapshot);
3619 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3620 let position = content_origin + source_point + offset;
3621 (Some(source_display_point), position)
3622 }
3623 };
3624
3625 let source_included = source_display_point.map_or(true, |source_display_point| {
3626 visible_range
3627 .to_inclusive()
3628 .contains(&source_display_point.row())
3629 });
3630 let position_included =
3631 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3632 if !source_included && !position_included {
3633 None
3634 } else {
3635 Some(position)
3636 }
3637 })?;
3638
3639 let mut element = self.editor.update(cx, |editor, _| {
3640 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3641 let context_menu = mouse_context_menu.context_menu.clone();
3642
3643 Some(
3644 deferred(
3645 anchored()
3646 .position(position)
3647 .child(context_menu)
3648 .anchor(Corner::TopLeft)
3649 .snap_to_window_with_margin(px(8.)),
3650 )
3651 .with_priority(1)
3652 .into_any(),
3653 )
3654 })?;
3655
3656 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3657 Some(element)
3658 }
3659
3660 #[allow(clippy::too_many_arguments)]
3661 fn layout_hover_popovers(
3662 &self,
3663 snapshot: &EditorSnapshot,
3664 hitbox: &Hitbox,
3665 text_hitbox: &Hitbox,
3666 visible_display_row_range: Range<DisplayRow>,
3667 content_origin: gpui::Point<Pixels>,
3668 scroll_pixel_position: gpui::Point<Pixels>,
3669 line_layouts: &[LineWithInvisibles],
3670 line_height: Pixels,
3671 em_width: Pixels,
3672 window: &mut Window,
3673 cx: &mut App,
3674 ) {
3675 struct MeasuredHoverPopover {
3676 element: AnyElement,
3677 size: Size<Pixels>,
3678 horizontal_offset: Pixels,
3679 }
3680
3681 let max_size = size(
3682 (120. * em_width) // Default size
3683 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3684 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3685 (16. * line_height) // Default size
3686 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3687 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3688 );
3689
3690 let hover_popovers = self.editor.update(cx, |editor, cx| {
3691 editor
3692 .hover_state
3693 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3694 });
3695 let Some((position, hover_popovers)) = hover_popovers else {
3696 return;
3697 };
3698
3699 // This is safe because we check on layout whether the required row is available
3700 let hovered_row_layout =
3701 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3702
3703 // Compute Hovered Point
3704 let x =
3705 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3706 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3707 let hovered_point = content_origin + point(x, y);
3708
3709 let mut overall_height = Pixels::ZERO;
3710 let mut measured_hover_popovers = Vec::new();
3711 for mut hover_popover in hover_popovers {
3712 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3713 let horizontal_offset =
3714 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3715
3716 overall_height += HOVER_POPOVER_GAP + size.height;
3717
3718 measured_hover_popovers.push(MeasuredHoverPopover {
3719 element: hover_popover,
3720 size,
3721 horizontal_offset,
3722 });
3723 }
3724 overall_height += HOVER_POPOVER_GAP;
3725
3726 fn draw_occluder(
3727 width: Pixels,
3728 origin: gpui::Point<Pixels>,
3729 window: &mut Window,
3730 cx: &mut App,
3731 ) {
3732 let mut occlusion = div()
3733 .size_full()
3734 .occlude()
3735 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3736 .into_any_element();
3737 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3738 window.defer_draw(occlusion, origin, 2);
3739 }
3740
3741 if hovered_point.y > overall_height {
3742 // There is enough space above. Render popovers above the hovered point
3743 let mut current_y = hovered_point.y;
3744 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3745 let size = popover.size;
3746 let popover_origin = point(
3747 hovered_point.x + popover.horizontal_offset,
3748 current_y - size.height,
3749 );
3750
3751 window.defer_draw(popover.element, popover_origin, 2);
3752 if position != itertools::Position::Last {
3753 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3754 draw_occluder(size.width, origin, window, cx);
3755 }
3756
3757 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3758 }
3759 } else {
3760 // There is not enough space above. Render popovers below the hovered point
3761 let mut current_y = hovered_point.y + line_height;
3762 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3763 let size = popover.size;
3764 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3765
3766 window.defer_draw(popover.element, popover_origin, 2);
3767 if position != itertools::Position::Last {
3768 let origin = point(popover_origin.x, popover_origin.y + size.height);
3769 draw_occluder(size.width, origin, window, cx);
3770 }
3771
3772 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3773 }
3774 }
3775 }
3776
3777 #[allow(clippy::too_many_arguments)]
3778 fn layout_diff_hunk_controls(
3779 &self,
3780 row_range: Range<DisplayRow>,
3781 row_infos: &[RowInfo],
3782 text_hitbox: &Hitbox,
3783 position_map: &PositionMap,
3784 newest_cursor_position: Option<DisplayPoint>,
3785 line_height: Pixels,
3786 scroll_pixel_position: gpui::Point<Pixels>,
3787 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3788 editor: Entity<Editor>,
3789 window: &mut Window,
3790 cx: &mut App,
3791 ) -> Vec<AnyElement> {
3792 let point_for_position =
3793 position_map.point_for_position(text_hitbox.bounds, window.mouse_position());
3794
3795 let mut controls = vec![];
3796
3797 let active_positions = [
3798 Some(point_for_position.previous_valid),
3799 newest_cursor_position,
3800 ];
3801
3802 for (hunk, _) in display_hunks {
3803 if let DisplayDiffHunk::Unfolded {
3804 display_row_range,
3805 multi_buffer_range,
3806 status,
3807 ..
3808 } = &hunk
3809 {
3810 if display_row_range.start < row_range.start
3811 || display_row_range.start >= row_range.end
3812 {
3813 continue;
3814 }
3815 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3816 if row_infos[row_ix].diff_status.is_none() {
3817 continue;
3818 }
3819 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
3820 && *status != DiffHunkStatus::Added
3821 {
3822 continue;
3823 }
3824 if active_positions
3825 .iter()
3826 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3827 {
3828 let y = display_row_range.start.as_f32() * line_height
3829 + text_hitbox.bounds.top()
3830 - scroll_pixel_position.y;
3831 let x = text_hitbox.bounds.right() - px(100.);
3832
3833 let mut element = diff_hunk_controls(
3834 display_row_range.start.0,
3835 multi_buffer_range.clone(),
3836 line_height,
3837 &editor,
3838 cx,
3839 );
3840 element.prepaint_as_root(
3841 gpui::Point::new(x, y),
3842 size(px(100.0), line_height).into(),
3843 window,
3844 cx,
3845 );
3846 controls.push(element);
3847 }
3848 }
3849 }
3850
3851 controls
3852 }
3853
3854 #[allow(clippy::too_many_arguments)]
3855 fn layout_signature_help(
3856 &self,
3857 hitbox: &Hitbox,
3858 content_origin: gpui::Point<Pixels>,
3859 scroll_pixel_position: gpui::Point<Pixels>,
3860 newest_selection_head: Option<DisplayPoint>,
3861 start_row: DisplayRow,
3862 line_layouts: &[LineWithInvisibles],
3863 line_height: Pixels,
3864 em_width: Pixels,
3865 window: &mut Window,
3866 cx: &mut App,
3867 ) {
3868 if !self.editor.focus_handle(cx).is_focused(window) {
3869 return;
3870 }
3871 let Some(newest_selection_head) = newest_selection_head else {
3872 return;
3873 };
3874 let selection_row = newest_selection_head.row();
3875 if selection_row < start_row {
3876 return;
3877 }
3878 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3879 else {
3880 return;
3881 };
3882
3883 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3884 - scroll_pixel_position.x
3885 + content_origin.x;
3886 let start_y =
3887 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3888
3889 let max_size = size(
3890 (120. * em_width) // Default size
3891 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3892 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3893 (16. * line_height) // Default size
3894 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3895 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3896 );
3897
3898 let maybe_element = self.editor.update(cx, |editor, cx| {
3899 if let Some(popover) = editor.signature_help_state.popover_mut() {
3900 let element = popover.render(
3901 &self.style,
3902 max_size,
3903 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3904 cx,
3905 );
3906 Some(element)
3907 } else {
3908 None
3909 }
3910 });
3911 if let Some(mut element) = maybe_element {
3912 let window_size = window.viewport_size();
3913 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
3914 let mut point = point(start_x, start_y - size.height);
3915
3916 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3917 if point.x + size.width >= window_size.width {
3918 point.x = window_size.width - size.width;
3919 }
3920
3921 window.defer_draw(element, point, 1)
3922 }
3923 }
3924
3925 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
3926 window.paint_layer(layout.hitbox.bounds, |window| {
3927 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3928 let gutter_bg = cx.theme().colors().editor_gutter_background;
3929 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3930 window.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3931
3932 if let EditorMode::Full = layout.mode {
3933 let mut active_rows = layout.active_rows.iter().peekable();
3934 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3935 let mut end_row = start_row.0;
3936 while active_rows
3937 .peek()
3938 .map_or(false, |(active_row, has_selection)| {
3939 active_row.0 == end_row + 1
3940 && *has_selection == contains_non_empty_selection
3941 })
3942 {
3943 active_rows.next().unwrap();
3944 end_row += 1;
3945 }
3946
3947 if !contains_non_empty_selection {
3948 let highlight_h_range =
3949 match layout.position_map.snapshot.current_line_highlight {
3950 CurrentLineHighlight::Gutter => Some(Range {
3951 start: layout.hitbox.left(),
3952 end: layout.gutter_hitbox.right(),
3953 }),
3954 CurrentLineHighlight::Line => Some(Range {
3955 start: layout.text_hitbox.bounds.left(),
3956 end: layout.text_hitbox.bounds.right(),
3957 }),
3958 CurrentLineHighlight::All => Some(Range {
3959 start: layout.hitbox.left(),
3960 end: layout.hitbox.right(),
3961 }),
3962 CurrentLineHighlight::None => None,
3963 };
3964 if let Some(range) = highlight_h_range {
3965 let active_line_bg = cx.theme().colors().editor_active_line_background;
3966 let bounds = Bounds {
3967 origin: point(
3968 range.start,
3969 layout.hitbox.origin.y
3970 + (start_row.as_f32() - scroll_top)
3971 * layout.position_map.line_height,
3972 ),
3973 size: size(
3974 range.end - range.start,
3975 layout.position_map.line_height
3976 * (end_row - start_row.0 + 1) as f32,
3977 ),
3978 };
3979 window.paint_quad(fill(bounds, active_line_bg));
3980 }
3981 }
3982 }
3983
3984 let mut paint_highlight =
3985 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3986 let origin = point(
3987 layout.hitbox.origin.x,
3988 layout.hitbox.origin.y
3989 + (highlight_row_start.as_f32() - scroll_top)
3990 * layout.position_map.line_height,
3991 );
3992 let size = size(
3993 layout.hitbox.size.width,
3994 layout.position_map.line_height
3995 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3996 );
3997 window.paint_quad(fill(Bounds { origin, size }, color));
3998 };
3999
4000 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4001 for (&new_row, &new_color) in &layout.highlighted_rows {
4002 match &mut current_paint {
4003 Some((current_color, current_range)) => {
4004 let current_color = *current_color;
4005 let new_range_started = current_color != new_color
4006 || current_range.end.next_row() != new_row;
4007 if new_range_started {
4008 paint_highlight(
4009 current_range.start,
4010 current_range.end,
4011 current_color,
4012 );
4013 current_paint = Some((new_color, new_row..new_row));
4014 continue;
4015 } else {
4016 current_range.end = current_range.end.next_row();
4017 }
4018 }
4019 None => current_paint = Some((new_color, new_row..new_row)),
4020 };
4021 }
4022 if let Some((color, range)) = current_paint {
4023 paint_highlight(range.start, range.end, color);
4024 }
4025
4026 let scroll_left =
4027 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4028
4029 for (wrap_position, active) in layout.wrap_guides.iter() {
4030 let x = (layout.text_hitbox.origin.x
4031 + *wrap_position
4032 + layout.position_map.em_width / 2.)
4033 - scroll_left;
4034
4035 let show_scrollbars = {
4036 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4037
4038 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4039 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4040 };
4041
4042 if x < layout.text_hitbox.origin.x
4043 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4044 {
4045 continue;
4046 }
4047
4048 let color = if *active {
4049 cx.theme().colors().editor_active_wrap_guide
4050 } else {
4051 cx.theme().colors().editor_wrap_guide
4052 };
4053 window.paint_quad(fill(
4054 Bounds {
4055 origin: point(x, layout.text_hitbox.origin.y),
4056 size: size(px(1.), layout.text_hitbox.size.height),
4057 },
4058 color,
4059 ));
4060 }
4061 }
4062 })
4063 }
4064
4065 fn paint_indent_guides(
4066 &mut self,
4067 layout: &mut EditorLayout,
4068 window: &mut Window,
4069 cx: &mut App,
4070 ) {
4071 let Some(indent_guides) = &layout.indent_guides else {
4072 return;
4073 };
4074
4075 let faded_color = |color: Hsla, alpha: f32| {
4076 let mut faded = color;
4077 faded.a = alpha;
4078 faded
4079 };
4080
4081 for indent_guide in indent_guides {
4082 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4083 let settings = indent_guide.settings;
4084
4085 // TODO fixed for now, expose them through themes later
4086 const INDENT_AWARE_ALPHA: f32 = 0.2;
4087 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4088 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4089 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4090
4091 let line_color = match (settings.coloring, indent_guide.active) {
4092 (IndentGuideColoring::Disabled, _) => None,
4093 (IndentGuideColoring::Fixed, false) => {
4094 Some(cx.theme().colors().editor_indent_guide)
4095 }
4096 (IndentGuideColoring::Fixed, true) => {
4097 Some(cx.theme().colors().editor_indent_guide_active)
4098 }
4099 (IndentGuideColoring::IndentAware, false) => {
4100 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4101 }
4102 (IndentGuideColoring::IndentAware, true) => {
4103 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4104 }
4105 };
4106
4107 let background_color = match (settings.background_coloring, indent_guide.active) {
4108 (IndentGuideBackgroundColoring::Disabled, _) => None,
4109 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4110 indent_accent_colors,
4111 INDENT_AWARE_BACKGROUND_ALPHA,
4112 )),
4113 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4114 indent_accent_colors,
4115 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4116 )),
4117 };
4118
4119 let requested_line_width = if indent_guide.active {
4120 settings.active_line_width
4121 } else {
4122 settings.line_width
4123 }
4124 .clamp(1, 10);
4125 let mut line_indicator_width = 0.;
4126 if let Some(color) = line_color {
4127 window.paint_quad(fill(
4128 Bounds {
4129 origin: indent_guide.origin,
4130 size: size(px(requested_line_width as f32), indent_guide.length),
4131 },
4132 color,
4133 ));
4134 line_indicator_width = requested_line_width as f32;
4135 }
4136
4137 if let Some(color) = background_color {
4138 let width = indent_guide.single_indent_width - px(line_indicator_width);
4139 window.paint_quad(fill(
4140 Bounds {
4141 origin: point(
4142 indent_guide.origin.x + px(line_indicator_width),
4143 indent_guide.origin.y,
4144 ),
4145 size: size(width, indent_guide.length),
4146 },
4147 color,
4148 ));
4149 }
4150 }
4151 }
4152
4153 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4154 let is_singleton = self.editor.read(cx).is_singleton(cx);
4155
4156 let line_height = layout.position_map.line_height;
4157 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4158
4159 for LineNumberLayout {
4160 shaped_line,
4161 hitbox,
4162 display_row,
4163 } in layout.line_numbers.values()
4164 {
4165 let Some(hitbox) = hitbox else {
4166 continue;
4167 };
4168
4169 let is_active = layout.active_rows.contains_key(&display_row);
4170
4171 let color = if is_active {
4172 cx.theme().colors().editor_active_line_number
4173 } else if !is_singleton && hitbox.is_hovered(window) {
4174 cx.theme().colors().editor_hover_line_number
4175 } else {
4176 cx.theme().colors().editor_line_number
4177 };
4178
4179 let Some(line) = self
4180 .shape_line_number(shaped_line.text.clone(), color, window)
4181 .log_err()
4182 else {
4183 continue;
4184 };
4185 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4186 continue;
4187 };
4188 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4189 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4190 if is_singleton {
4191 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4192 } else {
4193 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4194 }
4195 }
4196 }
4197
4198 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4199 if layout.display_hunks.is_empty() {
4200 return;
4201 }
4202
4203 let line_height = layout.position_map.line_height;
4204 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4205 for (hunk, hitbox) in &layout.display_hunks {
4206 let hunk_to_paint = match hunk {
4207 DisplayDiffHunk::Folded { .. } => {
4208 let hunk_bounds = Self::diff_hunk_bounds(
4209 &layout.position_map.snapshot,
4210 line_height,
4211 layout.gutter_hitbox.bounds,
4212 hunk,
4213 );
4214 Some((
4215 hunk_bounds,
4216 cx.theme().status().modified,
4217 Corners::all(px(0.)),
4218 ))
4219 }
4220 DisplayDiffHunk::Unfolded {
4221 status,
4222 display_row_range,
4223 ..
4224 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4225 DiffHunkStatus::Added => (
4226 hunk_hitbox.bounds,
4227 cx.theme().status().created,
4228 Corners::all(px(0.)),
4229 ),
4230 DiffHunkStatus::Modified => (
4231 hunk_hitbox.bounds,
4232 cx.theme().status().modified,
4233 Corners::all(px(0.)),
4234 ),
4235 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4236 hunk_hitbox.bounds,
4237 cx.theme().status().deleted,
4238 Corners::all(px(0.)),
4239 ),
4240 DiffHunkStatus::Removed => (
4241 Bounds::new(
4242 point(
4243 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4244 hunk_hitbox.origin.y,
4245 ),
4246 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4247 ),
4248 cx.theme().status().deleted,
4249 Corners::all(1. * line_height),
4250 ),
4251 }),
4252 };
4253
4254 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4255 window.paint_quad(quad(
4256 hunk_bounds,
4257 corner_radii,
4258 background_color,
4259 Edges::default(),
4260 transparent_black(),
4261 ));
4262 }
4263 }
4264 });
4265 }
4266
4267 fn diff_hunk_bounds(
4268 snapshot: &EditorSnapshot,
4269 line_height: Pixels,
4270 gutter_bounds: Bounds<Pixels>,
4271 hunk: &DisplayDiffHunk,
4272 ) -> Bounds<Pixels> {
4273 let scroll_position = snapshot.scroll_position();
4274 let scroll_top = scroll_position.y * line_height;
4275 let gutter_strip_width = (0.275 * line_height).floor();
4276
4277 match hunk {
4278 DisplayDiffHunk::Folded { display_row, .. } => {
4279 let start_y = display_row.as_f32() * line_height - scroll_top;
4280 let end_y = start_y + line_height;
4281 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4282 let highlight_size = size(gutter_strip_width, end_y - start_y);
4283 Bounds::new(highlight_origin, highlight_size)
4284 }
4285 DisplayDiffHunk::Unfolded {
4286 display_row_range,
4287 status,
4288 ..
4289 } => {
4290 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4291 let row = display_row_range.start;
4292
4293 let offset = line_height / 2.;
4294 let start_y = row.as_f32() * line_height - offset - scroll_top;
4295 let end_y = start_y + line_height;
4296
4297 let width = (0.35 * line_height).floor();
4298 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4299 let highlight_size = size(width, end_y - start_y);
4300 Bounds::new(highlight_origin, highlight_size)
4301 } else {
4302 let start_row = display_row_range.start;
4303 let end_row = display_row_range.end;
4304 // If we're in a multibuffer, row range span might include an
4305 // excerpt header, so if we were to draw the marker straight away,
4306 // the hunk might include the rows of that header.
4307 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4308 // Instead, we simply check whether the range we're dealing with includes
4309 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4310 let end_row_in_current_excerpt = snapshot
4311 .blocks_in_range(start_row..end_row)
4312 .find_map(|(start_row, block)| {
4313 if matches!(block, Block::ExcerptBoundary { .. }) {
4314 Some(start_row)
4315 } else {
4316 None
4317 }
4318 })
4319 .unwrap_or(end_row);
4320
4321 let start_y = start_row.as_f32() * line_height - scroll_top;
4322 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4323
4324 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4325 let highlight_size = size(gutter_strip_width, end_y - start_y);
4326 Bounds::new(highlight_origin, highlight_size)
4327 }
4328 }
4329 }
4330 }
4331
4332 fn paint_gutter_indicators(
4333 &self,
4334 layout: &mut EditorLayout,
4335 window: &mut Window,
4336 cx: &mut App,
4337 ) {
4338 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4339 window.with_element_namespace("crease_toggles", |window| {
4340 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4341 crease_toggle.paint(window, cx);
4342 }
4343 });
4344
4345 for test_indicator in layout.test_indicators.iter_mut() {
4346 test_indicator.paint(window, cx);
4347 }
4348
4349 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4350 indicator.paint(window, cx);
4351 }
4352 });
4353 }
4354
4355 fn paint_gutter_highlights(
4356 &self,
4357 layout: &mut EditorLayout,
4358 window: &mut Window,
4359 cx: &mut App,
4360 ) {
4361 for (_, hunk_hitbox) in &layout.display_hunks {
4362 if let Some(hunk_hitbox) = hunk_hitbox {
4363 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4364 }
4365 }
4366
4367 let show_git_gutter = layout
4368 .position_map
4369 .snapshot
4370 .show_git_diff_gutter
4371 .unwrap_or_else(|| {
4372 matches!(
4373 ProjectSettings::get_global(cx).git.git_gutter,
4374 Some(GitGutterSetting::TrackedFiles)
4375 )
4376 });
4377 if show_git_gutter {
4378 Self::paint_diff_hunks(layout, window, cx)
4379 }
4380
4381 let highlight_width = 0.275 * layout.position_map.line_height;
4382 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4383 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4384 for (range, color) in &layout.highlighted_gutter_ranges {
4385 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4386 layout.visible_display_row_range.start - DisplayRow(1)
4387 } else {
4388 range.start.row()
4389 };
4390 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4391 layout.visible_display_row_range.end + DisplayRow(1)
4392 } else {
4393 range.end.row()
4394 };
4395
4396 let start_y = layout.gutter_hitbox.top()
4397 + start_row.0 as f32 * layout.position_map.line_height
4398 - layout.position_map.scroll_pixel_position.y;
4399 let end_y = layout.gutter_hitbox.top()
4400 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4401 - layout.position_map.scroll_pixel_position.y;
4402 let bounds = Bounds::from_corners(
4403 point(layout.gutter_hitbox.left(), start_y),
4404 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4405 );
4406 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4407 }
4408 });
4409 }
4410
4411 fn paint_blamed_display_rows(
4412 &self,
4413 layout: &mut EditorLayout,
4414 window: &mut Window,
4415 cx: &mut App,
4416 ) {
4417 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4418 return;
4419 };
4420
4421 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4422 for mut blame_element in blamed_display_rows.into_iter() {
4423 blame_element.paint(window, cx);
4424 }
4425 })
4426 }
4427
4428 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4429 window.with_content_mask(
4430 Some(ContentMask {
4431 bounds: layout.text_hitbox.bounds,
4432 }),
4433 |window| {
4434 let cursor_style = if self
4435 .editor
4436 .read(cx)
4437 .hovered_link_state
4438 .as_ref()
4439 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4440 {
4441 CursorStyle::PointingHand
4442 } else {
4443 CursorStyle::IBeam
4444 };
4445 window.set_cursor_style(cursor_style, &layout.text_hitbox);
4446
4447 let invisible_display_ranges = self.paint_highlights(layout, window);
4448 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4449 self.paint_redactions(layout, window);
4450 self.paint_cursors(layout, window, cx);
4451 self.paint_inline_blame(layout, window, cx);
4452 self.paint_diff_hunk_controls(layout, window, cx);
4453 window.with_element_namespace("crease_trailers", |window| {
4454 for trailer in layout.crease_trailers.iter_mut().flatten() {
4455 trailer.element.paint(window, cx);
4456 }
4457 });
4458 },
4459 )
4460 }
4461
4462 fn paint_highlights(
4463 &mut self,
4464 layout: &mut EditorLayout,
4465 window: &mut Window,
4466 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4467 window.paint_layer(layout.text_hitbox.bounds, |window| {
4468 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4469 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4470 for (range, color) in &layout.highlighted_ranges {
4471 self.paint_highlighted_range(
4472 range.clone(),
4473 *color,
4474 Pixels::ZERO,
4475 line_end_overshoot,
4476 layout,
4477 window,
4478 );
4479 }
4480
4481 let corner_radius = 0.15 * layout.position_map.line_height;
4482
4483 for (player_color, selections) in &layout.selections {
4484 for selection in selections.iter() {
4485 self.paint_highlighted_range(
4486 selection.range.clone(),
4487 player_color.selection,
4488 corner_radius,
4489 corner_radius * 2.,
4490 layout,
4491 window,
4492 );
4493
4494 if selection.is_local && !selection.range.is_empty() {
4495 invisible_display_ranges.push(selection.range.clone());
4496 }
4497 }
4498 }
4499 invisible_display_ranges
4500 })
4501 }
4502
4503 fn paint_lines(
4504 &mut self,
4505 invisible_display_ranges: &[Range<DisplayPoint>],
4506 layout: &mut EditorLayout,
4507 window: &mut Window,
4508 cx: &mut App,
4509 ) {
4510 let whitespace_setting = self
4511 .editor
4512 .read(cx)
4513 .buffer
4514 .read(cx)
4515 .settings_at(0, cx)
4516 .show_whitespaces;
4517
4518 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4519 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4520 line_with_invisibles.draw(
4521 layout,
4522 row,
4523 layout.content_origin,
4524 whitespace_setting,
4525 invisible_display_ranges,
4526 window,
4527 cx,
4528 )
4529 }
4530
4531 for line_element in &mut layout.line_elements {
4532 line_element.paint(window, cx);
4533 }
4534 }
4535
4536 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4537 if layout.redacted_ranges.is_empty() {
4538 return;
4539 }
4540
4541 let line_end_overshoot = layout.line_end_overshoot();
4542
4543 // A softer than perfect black
4544 let redaction_color = gpui::rgb(0x0e1111);
4545
4546 window.paint_layer(layout.text_hitbox.bounds, |window| {
4547 for range in layout.redacted_ranges.iter() {
4548 self.paint_highlighted_range(
4549 range.clone(),
4550 redaction_color.into(),
4551 Pixels::ZERO,
4552 line_end_overshoot,
4553 layout,
4554 window,
4555 );
4556 }
4557 });
4558 }
4559
4560 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4561 for cursor in &mut layout.visible_cursors {
4562 cursor.paint(layout.content_origin, window, cx);
4563 }
4564 }
4565
4566 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4567 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4568
4569 if let Some(scrollbar_layout) = scrollbar_x {
4570 let hitbox = scrollbar_layout.hitbox.clone();
4571 let text_unit_size = scrollbar_layout.text_unit_size;
4572 let visible_range = scrollbar_layout.visible_range.clone();
4573 let thumb_bounds = scrollbar_layout.thumb_bounds();
4574
4575 if scrollbar_layout.visible {
4576 window.paint_layer(hitbox.bounds, |window| {
4577 window.paint_quad(quad(
4578 hitbox.bounds,
4579 Corners::default(),
4580 cx.theme().colors().scrollbar_track_background,
4581 Edges {
4582 top: Pixels::ZERO,
4583 right: Pixels::ZERO,
4584 bottom: Pixels::ZERO,
4585 left: Pixels::ZERO,
4586 },
4587 cx.theme().colors().scrollbar_track_border,
4588 ));
4589
4590 window.paint_quad(quad(
4591 thumb_bounds,
4592 Corners::default(),
4593 cx.theme().colors().scrollbar_thumb_background,
4594 Edges {
4595 top: Pixels::ZERO,
4596 right: Pixels::ZERO,
4597 bottom: Pixels::ZERO,
4598 left: ScrollbarLayout::BORDER_WIDTH,
4599 },
4600 cx.theme().colors().scrollbar_thumb_border,
4601 ));
4602 })
4603 }
4604
4605 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4606
4607 window.on_mouse_event({
4608 let editor = self.editor.clone();
4609
4610 // there may be a way to avoid this clone
4611 let hitbox = hitbox.clone();
4612
4613 let mut mouse_position = window.mouse_position();
4614 move |event: &MouseMoveEvent, phase, window, cx| {
4615 if phase == DispatchPhase::Capture {
4616 return;
4617 }
4618
4619 editor.update(cx, |editor, cx| {
4620 if event.pressed_button == Some(MouseButton::Left)
4621 && editor
4622 .scroll_manager
4623 .is_dragging_scrollbar(Axis::Horizontal)
4624 {
4625 let x = mouse_position.x;
4626 let new_x = event.position.x;
4627 if (hitbox.left()..hitbox.right()).contains(&x) {
4628 let mut position = editor.scroll_position(cx);
4629
4630 position.x += (new_x - x) / text_unit_size;
4631 if position.x < 0.0 {
4632 position.x = 0.0;
4633 }
4634 editor.set_scroll_position(position, window, cx);
4635 }
4636
4637 cx.stop_propagation();
4638 } else {
4639 editor.scroll_manager.set_is_dragging_scrollbar(
4640 Axis::Horizontal,
4641 false,
4642 cx,
4643 );
4644
4645 if hitbox.is_hovered(window) {
4646 editor.scroll_manager.show_scrollbar(window, cx);
4647 }
4648 }
4649 mouse_position = event.position;
4650 })
4651 }
4652 });
4653
4654 if self
4655 .editor
4656 .read(cx)
4657 .scroll_manager
4658 .is_dragging_scrollbar(Axis::Horizontal)
4659 {
4660 window.on_mouse_event({
4661 let editor = self.editor.clone();
4662 move |_: &MouseUpEvent, phase, _, cx| {
4663 if phase == DispatchPhase::Capture {
4664 return;
4665 }
4666
4667 editor.update(cx, |editor, cx| {
4668 editor.scroll_manager.set_is_dragging_scrollbar(
4669 Axis::Horizontal,
4670 false,
4671 cx,
4672 );
4673 cx.stop_propagation();
4674 });
4675 }
4676 });
4677 } else {
4678 window.on_mouse_event({
4679 let editor = self.editor.clone();
4680
4681 move |event: &MouseDownEvent, phase, window, cx| {
4682 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4683 return;
4684 }
4685
4686 editor.update(cx, |editor, cx| {
4687 editor.scroll_manager.set_is_dragging_scrollbar(
4688 Axis::Horizontal,
4689 true,
4690 cx,
4691 );
4692
4693 let x = event.position.x;
4694
4695 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4696 let center_row =
4697 ((x - hitbox.left()) / text_unit_size).round() as u32;
4698 let top_row = center_row.saturating_sub(
4699 (visible_range.end - visible_range.start) as u32 / 2,
4700 );
4701
4702 let mut position = editor.scroll_position(cx);
4703 position.x = top_row as f32;
4704
4705 editor.set_scroll_position(position, window, cx);
4706 } else {
4707 editor.scroll_manager.show_scrollbar(window, cx);
4708 }
4709
4710 cx.stop_propagation();
4711 });
4712 }
4713 });
4714 }
4715 }
4716
4717 if let Some(scrollbar_layout) = scrollbar_y {
4718 let hitbox = scrollbar_layout.hitbox.clone();
4719 let text_unit_size = scrollbar_layout.text_unit_size;
4720 let visible_range = scrollbar_layout.visible_range.clone();
4721 let thumb_bounds = scrollbar_layout.thumb_bounds();
4722
4723 if scrollbar_layout.visible {
4724 window.paint_layer(hitbox.bounds, |window| {
4725 window.paint_quad(quad(
4726 hitbox.bounds,
4727 Corners::default(),
4728 cx.theme().colors().scrollbar_track_background,
4729 Edges {
4730 top: Pixels::ZERO,
4731 right: Pixels::ZERO,
4732 bottom: Pixels::ZERO,
4733 left: ScrollbarLayout::BORDER_WIDTH,
4734 },
4735 cx.theme().colors().scrollbar_track_border,
4736 ));
4737
4738 let fast_markers =
4739 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4740 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4741 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4742
4743 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4744 for marker in markers.iter().chain(&fast_markers) {
4745 let mut marker = marker.clone();
4746 marker.bounds.origin += hitbox.origin;
4747 window.paint_quad(marker);
4748 }
4749
4750 window.paint_quad(quad(
4751 thumb_bounds,
4752 Corners::default(),
4753 cx.theme().colors().scrollbar_thumb_background,
4754 Edges {
4755 top: Pixels::ZERO,
4756 right: Pixels::ZERO,
4757 bottom: Pixels::ZERO,
4758 left: ScrollbarLayout::BORDER_WIDTH,
4759 },
4760 cx.theme().colors().scrollbar_thumb_border,
4761 ));
4762 });
4763 }
4764
4765 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4766
4767 window.on_mouse_event({
4768 let editor = self.editor.clone();
4769
4770 let hitbox = hitbox.clone();
4771
4772 let mut mouse_position = window.mouse_position();
4773 move |event: &MouseMoveEvent, phase, window, cx| {
4774 if phase == DispatchPhase::Capture {
4775 return;
4776 }
4777
4778 editor.update(cx, |editor, cx| {
4779 if event.pressed_button == Some(MouseButton::Left)
4780 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4781 {
4782 let y = mouse_position.y;
4783 let new_y = event.position.y;
4784 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4785 let mut position = editor.scroll_position(cx);
4786 position.y += (new_y - y) / text_unit_size;
4787 if position.y < 0.0 {
4788 position.y = 0.0;
4789 }
4790 editor.set_scroll_position(position, window, cx);
4791 }
4792 } else {
4793 editor.scroll_manager.set_is_dragging_scrollbar(
4794 Axis::Vertical,
4795 false,
4796 cx,
4797 );
4798
4799 if hitbox.is_hovered(window) {
4800 editor.scroll_manager.show_scrollbar(window, cx);
4801 }
4802 }
4803 mouse_position = event.position;
4804 })
4805 }
4806 });
4807
4808 if self
4809 .editor
4810 .read(cx)
4811 .scroll_manager
4812 .is_dragging_scrollbar(Axis::Vertical)
4813 {
4814 window.on_mouse_event({
4815 let editor = self.editor.clone();
4816 move |_: &MouseUpEvent, phase, _, cx| {
4817 if phase == DispatchPhase::Capture {
4818 return;
4819 }
4820
4821 editor.update(cx, |editor, cx| {
4822 editor.scroll_manager.set_is_dragging_scrollbar(
4823 Axis::Vertical,
4824 false,
4825 cx,
4826 );
4827 cx.stop_propagation();
4828 });
4829 }
4830 });
4831 } else {
4832 window.on_mouse_event({
4833 let editor = self.editor.clone();
4834
4835 move |event: &MouseDownEvent, phase, window, cx| {
4836 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4837 return;
4838 }
4839
4840 editor.update(cx, |editor, cx| {
4841 editor.scroll_manager.set_is_dragging_scrollbar(
4842 Axis::Vertical,
4843 true,
4844 cx,
4845 );
4846
4847 let y = event.position.y;
4848 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
4849 let center_row =
4850 ((y - hitbox.top()) / text_unit_size).round() as u32;
4851 let top_row = center_row.saturating_sub(
4852 (visible_range.end - visible_range.start) as u32 / 2,
4853 );
4854 let mut position = editor.scroll_position(cx);
4855 position.y = top_row as f32;
4856 editor.set_scroll_position(position, window, cx);
4857 } else {
4858 editor.scroll_manager.show_scrollbar(window, cx);
4859 }
4860
4861 cx.stop_propagation();
4862 });
4863 }
4864 });
4865 }
4866 }
4867 }
4868
4869 fn collect_fast_scrollbar_markers(
4870 &self,
4871 layout: &EditorLayout,
4872 scrollbar_layout: &ScrollbarLayout,
4873 cx: &mut App,
4874 ) -> Vec<PaintQuad> {
4875 const LIMIT: usize = 100;
4876 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4877 return vec![];
4878 }
4879 let cursor_ranges = layout
4880 .cursors
4881 .iter()
4882 .map(|(point, color)| ColoredRange {
4883 start: point.row(),
4884 end: point.row(),
4885 color: *color,
4886 })
4887 .collect_vec();
4888 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4889 }
4890
4891 fn refresh_slow_scrollbar_markers(
4892 &self,
4893 layout: &EditorLayout,
4894 scrollbar_layout: &ScrollbarLayout,
4895 window: &mut Window,
4896 cx: &mut App,
4897 ) {
4898 self.editor.update(cx, |editor, cx| {
4899 if !editor.is_singleton(cx)
4900 || !editor
4901 .scrollbar_marker_state
4902 .should_refresh(scrollbar_layout.hitbox.size)
4903 {
4904 return;
4905 }
4906
4907 let scrollbar_layout = scrollbar_layout.clone();
4908 let background_highlights = editor.background_highlights.clone();
4909 let snapshot = layout.position_map.snapshot.clone();
4910 let theme = cx.theme().clone();
4911 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4912
4913 editor.scrollbar_marker_state.dirty = false;
4914 editor.scrollbar_marker_state.pending_refresh =
4915 Some(cx.spawn_in(window, |editor, mut cx| async move {
4916 let scrollbar_size = scrollbar_layout.hitbox.size;
4917 let scrollbar_markers = cx
4918 .background_executor()
4919 .spawn(async move {
4920 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4921 let mut marker_quads = Vec::new();
4922 if scrollbar_settings.git_diff {
4923 let marker_row_ranges =
4924 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
4925 let start_display_row =
4926 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4927 .to_display_point(&snapshot.display_snapshot)
4928 .row();
4929 let mut end_display_row =
4930 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4931 .to_display_point(&snapshot.display_snapshot)
4932 .row();
4933 if end_display_row != start_display_row {
4934 end_display_row.0 -= 1;
4935 }
4936 let color = match &hunk.status() {
4937 DiffHunkStatus::Added => theme.status().created,
4938 DiffHunkStatus::Modified => theme.status().modified,
4939 DiffHunkStatus::Removed => theme.status().deleted,
4940 };
4941 ColoredRange {
4942 start: start_display_row,
4943 end: end_display_row,
4944 color,
4945 }
4946 });
4947
4948 marker_quads.extend(
4949 scrollbar_layout
4950 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4951 );
4952 }
4953
4954 for (background_highlight_id, (_, background_ranges)) in
4955 background_highlights.iter()
4956 {
4957 let is_search_highlights = *background_highlight_id
4958 == TypeId::of::<BufferSearchHighlights>();
4959 let is_symbol_occurrences = *background_highlight_id
4960 == TypeId::of::<DocumentHighlightRead>()
4961 || *background_highlight_id
4962 == TypeId::of::<DocumentHighlightWrite>();
4963 if (is_search_highlights && scrollbar_settings.search_results)
4964 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
4965 {
4966 let mut color = theme.status().info;
4967 if is_symbol_occurrences {
4968 color.fade_out(0.5);
4969 }
4970 let marker_row_ranges = background_ranges.iter().map(|range| {
4971 let display_start = range
4972 .start
4973 .to_display_point(&snapshot.display_snapshot);
4974 let display_end =
4975 range.end.to_display_point(&snapshot.display_snapshot);
4976 ColoredRange {
4977 start: display_start.row(),
4978 end: display_end.row(),
4979 color,
4980 }
4981 });
4982 marker_quads.extend(
4983 scrollbar_layout
4984 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
4985 );
4986 }
4987 }
4988
4989 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
4990 let diagnostics = snapshot
4991 .buffer_snapshot
4992 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
4993 // Don't show diagnostics the user doesn't care about
4994 .filter(|diagnostic| {
4995 match (
4996 scrollbar_settings.diagnostics,
4997 diagnostic.diagnostic.severity,
4998 ) {
4999 (ScrollbarDiagnostics::All, _) => true,
5000 (
5001 ScrollbarDiagnostics::Error,
5002 DiagnosticSeverity::ERROR,
5003 ) => true,
5004 (
5005 ScrollbarDiagnostics::Warning,
5006 DiagnosticSeverity::ERROR
5007 | DiagnosticSeverity::WARNING,
5008 ) => true,
5009 (
5010 ScrollbarDiagnostics::Information,
5011 DiagnosticSeverity::ERROR
5012 | DiagnosticSeverity::WARNING
5013 | DiagnosticSeverity::INFORMATION,
5014 ) => true,
5015 (_, _) => false,
5016 }
5017 })
5018 // We want to sort by severity, in order to paint the most severe diagnostics last.
5019 .sorted_by_key(|diagnostic| {
5020 std::cmp::Reverse(diagnostic.diagnostic.severity)
5021 });
5022
5023 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5024 let start_display = diagnostic
5025 .range
5026 .start
5027 .to_display_point(&snapshot.display_snapshot);
5028 let end_display = diagnostic
5029 .range
5030 .end
5031 .to_display_point(&snapshot.display_snapshot);
5032 let color = match diagnostic.diagnostic.severity {
5033 DiagnosticSeverity::ERROR => theme.status().error,
5034 DiagnosticSeverity::WARNING => theme.status().warning,
5035 DiagnosticSeverity::INFORMATION => theme.status().info,
5036 _ => theme.status().hint,
5037 };
5038 ColoredRange {
5039 start: start_display.row(),
5040 end: end_display.row(),
5041 color,
5042 }
5043 });
5044 marker_quads.extend(
5045 scrollbar_layout
5046 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5047 );
5048 }
5049
5050 Arc::from(marker_quads)
5051 })
5052 .await;
5053
5054 editor.update(&mut cx, |editor, cx| {
5055 editor.scrollbar_marker_state.markers = scrollbar_markers;
5056 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5057 editor.scrollbar_marker_state.pending_refresh = None;
5058 cx.notify();
5059 })?;
5060
5061 Ok(())
5062 }));
5063 });
5064 }
5065
5066 #[allow(clippy::too_many_arguments)]
5067 fn paint_highlighted_range(
5068 &self,
5069 range: Range<DisplayPoint>,
5070 color: Hsla,
5071 corner_radius: Pixels,
5072 line_end_overshoot: Pixels,
5073 layout: &EditorLayout,
5074 window: &mut Window,
5075 ) {
5076 let start_row = layout.visible_display_row_range.start;
5077 let end_row = layout.visible_display_row_range.end;
5078 if range.start != range.end {
5079 let row_range = if range.end.column() == 0 {
5080 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5081 } else {
5082 cmp::max(range.start.row(), start_row)
5083 ..cmp::min(range.end.row().next_row(), end_row)
5084 };
5085
5086 let highlighted_range = HighlightedRange {
5087 color,
5088 line_height: layout.position_map.line_height,
5089 corner_radius,
5090 start_y: layout.content_origin.y
5091 + row_range.start.as_f32() * layout.position_map.line_height
5092 - layout.position_map.scroll_pixel_position.y,
5093 lines: row_range
5094 .iter_rows()
5095 .map(|row| {
5096 let line_layout =
5097 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5098 HighlightedRangeLine {
5099 start_x: if row == range.start.row() {
5100 layout.content_origin.x
5101 + line_layout.x_for_index(range.start.column() as usize)
5102 - layout.position_map.scroll_pixel_position.x
5103 } else {
5104 layout.content_origin.x
5105 - layout.position_map.scroll_pixel_position.x
5106 },
5107 end_x: if row == range.end.row() {
5108 layout.content_origin.x
5109 + line_layout.x_for_index(range.end.column() as usize)
5110 - layout.position_map.scroll_pixel_position.x
5111 } else {
5112 layout.content_origin.x + line_layout.width + line_end_overshoot
5113 - layout.position_map.scroll_pixel_position.x
5114 },
5115 }
5116 })
5117 .collect(),
5118 };
5119
5120 highlighted_range.paint(layout.text_hitbox.bounds, window);
5121 }
5122 }
5123
5124 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5125 if let Some(mut inline_blame) = layout.inline_blame.take() {
5126 window.paint_layer(layout.text_hitbox.bounds, |window| {
5127 inline_blame.paint(window, cx);
5128 })
5129 }
5130 }
5131
5132 fn paint_diff_hunk_controls(
5133 &mut self,
5134 layout: &mut EditorLayout,
5135 window: &mut Window,
5136 cx: &mut App,
5137 ) {
5138 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5139 diff_hunk_control.paint(window, cx);
5140 }
5141 }
5142
5143 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5144 for mut block in layout.blocks.drain(..) {
5145 block.element.paint(window, cx);
5146 }
5147 }
5148
5149 fn paint_inline_completion_popover(
5150 &mut self,
5151 layout: &mut EditorLayout,
5152 window: &mut Window,
5153 cx: &mut App,
5154 ) {
5155 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5156 inline_completion_popover.paint(window, cx);
5157 }
5158 }
5159
5160 fn paint_mouse_context_menu(
5161 &mut self,
5162 layout: &mut EditorLayout,
5163 window: &mut Window,
5164 cx: &mut App,
5165 ) {
5166 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5167 mouse_context_menu.paint(window, cx);
5168 }
5169 }
5170
5171 fn paint_scroll_wheel_listener(
5172 &mut self,
5173 layout: &EditorLayout,
5174 window: &mut Window,
5175 cx: &mut App,
5176 ) {
5177 window.on_mouse_event({
5178 let position_map = layout.position_map.clone();
5179 let editor = self.editor.clone();
5180 let hitbox = layout.hitbox.clone();
5181 let mut delta = ScrollDelta::default();
5182
5183 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5184 // accidentally turn off their scrolling.
5185 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5186
5187 move |event: &ScrollWheelEvent, phase, window, cx| {
5188 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5189 delta = delta.coalesce(event.delta);
5190 editor.update(cx, |editor, cx| {
5191 let position_map: &PositionMap = &position_map;
5192
5193 let line_height = position_map.line_height;
5194 let max_glyph_width = position_map.em_width;
5195 let (delta, axis) = match delta {
5196 gpui::ScrollDelta::Pixels(mut pixels) => {
5197 //Trackpad
5198 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5199 (pixels, axis)
5200 }
5201
5202 gpui::ScrollDelta::Lines(lines) => {
5203 //Not trackpad
5204 let pixels =
5205 point(lines.x * max_glyph_width, lines.y * line_height);
5206 (pixels, None)
5207 }
5208 };
5209
5210 let current_scroll_position = position_map.snapshot.scroll_position();
5211 let x = (current_scroll_position.x * max_glyph_width
5212 - (delta.x * scroll_sensitivity))
5213 / max_glyph_width;
5214 let y = (current_scroll_position.y * line_height
5215 - (delta.y * scroll_sensitivity))
5216 / line_height;
5217 let mut scroll_position =
5218 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5219 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5220 if forbid_vertical_scroll {
5221 scroll_position.y = current_scroll_position.y;
5222 }
5223
5224 if scroll_position != current_scroll_position {
5225 editor.scroll(scroll_position, axis, window, cx);
5226 cx.stop_propagation();
5227 } else if y < 0. {
5228 // Due to clamping, we may fail to detect cases of overscroll to the top;
5229 // We want the scroll manager to get an update in such cases and detect the change of direction
5230 // on the next frame.
5231 cx.notify();
5232 }
5233 });
5234 }
5235 }
5236 });
5237 }
5238
5239 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5240 self.paint_scroll_wheel_listener(layout, window, cx);
5241
5242 window.on_mouse_event({
5243 let position_map = layout.position_map.clone();
5244 let editor = self.editor.clone();
5245 let text_hitbox = layout.text_hitbox.clone();
5246 let gutter_hitbox = layout.gutter_hitbox.clone();
5247 let multi_buffer_range =
5248 layout
5249 .display_hunks
5250 .iter()
5251 .find_map(|(hunk, hunk_hitbox)| match hunk {
5252 DisplayDiffHunk::Folded { .. } => None,
5253 DisplayDiffHunk::Unfolded {
5254 multi_buffer_range, ..
5255 } => {
5256 if hunk_hitbox
5257 .as_ref()
5258 .map(|hitbox| hitbox.is_hovered(window))
5259 .unwrap_or(false)
5260 {
5261 Some(multi_buffer_range.clone())
5262 } else {
5263 None
5264 }
5265 }
5266 });
5267 let line_numbers = layout.line_numbers.clone();
5268
5269 move |event: &MouseDownEvent, phase, window, cx| {
5270 if phase == DispatchPhase::Bubble {
5271 match event.button {
5272 MouseButton::Left => editor.update(cx, |editor, cx| {
5273 Self::mouse_left_down(
5274 editor,
5275 event,
5276 multi_buffer_range.clone(),
5277 &position_map,
5278 &text_hitbox,
5279 &gutter_hitbox,
5280 line_numbers.as_ref(),
5281 window,
5282 cx,
5283 );
5284 }),
5285 MouseButton::Right => editor.update(cx, |editor, cx| {
5286 Self::mouse_right_down(
5287 editor,
5288 event,
5289 &position_map,
5290 &text_hitbox,
5291 window,
5292 cx,
5293 );
5294 }),
5295 MouseButton::Middle => editor.update(cx, |editor, cx| {
5296 Self::mouse_middle_down(
5297 editor,
5298 event,
5299 &position_map,
5300 &text_hitbox,
5301 window,
5302 cx,
5303 );
5304 }),
5305 _ => {}
5306 };
5307 }
5308 }
5309 });
5310
5311 window.on_mouse_event({
5312 let editor = self.editor.clone();
5313 let position_map = layout.position_map.clone();
5314 let text_hitbox = layout.text_hitbox.clone();
5315
5316 move |event: &MouseUpEvent, phase, window, cx| {
5317 if phase == DispatchPhase::Bubble {
5318 editor.update(cx, |editor, cx| {
5319 Self::mouse_up(editor, event, &position_map, &text_hitbox, window, cx)
5320 });
5321 }
5322 }
5323 });
5324 window.on_mouse_event({
5325 let position_map = layout.position_map.clone();
5326 let editor = self.editor.clone();
5327 let text_hitbox = layout.text_hitbox.clone();
5328 let gutter_hitbox = layout.gutter_hitbox.clone();
5329
5330 move |event: &MouseMoveEvent, phase, window, cx| {
5331 if phase == DispatchPhase::Bubble {
5332 editor.update(cx, |editor, cx| {
5333 if editor.hover_state.focused(window, cx) {
5334 return;
5335 }
5336 if event.pressed_button == Some(MouseButton::Left)
5337 || event.pressed_button == Some(MouseButton::Middle)
5338 {
5339 Self::mouse_dragged(
5340 editor,
5341 event,
5342 &position_map,
5343 text_hitbox.bounds,
5344 window,
5345 cx,
5346 )
5347 }
5348
5349 Self::mouse_moved(
5350 editor,
5351 event,
5352 &position_map,
5353 &text_hitbox,
5354 &gutter_hitbox,
5355 window,
5356 cx,
5357 )
5358 });
5359 }
5360 }
5361 });
5362 }
5363
5364 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5365 bounds.top_right().x - self.style.scrollbar_width
5366 }
5367
5368 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5369 let style = &self.style;
5370 let font_size = style.text.font_size.to_pixels(window.rem_size());
5371 let layout = window
5372 .text_system()
5373 .shape_line(
5374 SharedString::from(" ".repeat(column)),
5375 font_size,
5376 &[TextRun {
5377 len: column,
5378 font: style.text.font(),
5379 color: Hsla::default(),
5380 background_color: None,
5381 underline: None,
5382 strikethrough: None,
5383 }],
5384 )
5385 .unwrap();
5386
5387 layout.width
5388 }
5389
5390 fn max_line_number_width(
5391 &self,
5392 snapshot: &EditorSnapshot,
5393 window: &mut Window,
5394 cx: &mut App,
5395 ) -> Pixels {
5396 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5397 self.column_pixels(digit_count, window, cx)
5398 }
5399
5400 fn shape_line_number(
5401 &self,
5402 text: SharedString,
5403 color: Hsla,
5404 window: &mut Window,
5405 ) -> anyhow::Result<ShapedLine> {
5406 let run = TextRun {
5407 len: text.len(),
5408 font: self.style.text.font(),
5409 color,
5410 background_color: None,
5411 underline: None,
5412 strikethrough: None,
5413 };
5414 window.text_system().shape_line(
5415 text,
5416 self.style.text.font_size.to_pixels(window.rem_size()),
5417 &[run],
5418 )
5419 }
5420}
5421
5422fn header_jump_data(
5423 snapshot: &EditorSnapshot,
5424 block_row_start: DisplayRow,
5425 height: u32,
5426 for_excerpt: &ExcerptInfo,
5427) -> JumpData {
5428 let range = &for_excerpt.range;
5429 let buffer = &for_excerpt.buffer;
5430 let jump_anchor = range
5431 .primary
5432 .as_ref()
5433 .map_or(range.context.start, |primary| primary.start);
5434
5435 let excerpt_start = range.context.start;
5436 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5437 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
5438 0
5439 } else {
5440 let excerpt_start_row = language::ToPoint::to_point(&excerpt_start, buffer).row;
5441 jump_position.row - excerpt_start_row
5442 };
5443
5444 let line_offset_from_top = (block_row_start.0 + height + offset_from_excerpt_start)
5445 .saturating_sub(
5446 snapshot
5447 .scroll_anchor
5448 .scroll_position(&snapshot.display_snapshot)
5449 .y as u32,
5450 );
5451
5452 JumpData::MultiBufferPoint {
5453 excerpt_id: for_excerpt.id,
5454 anchor: jump_anchor,
5455 position: language::ToPoint::to_point(&jump_anchor, buffer),
5456 line_offset_from_top,
5457 }
5458}
5459
5460fn inline_completion_tab_indicator(
5461 label: impl Into<SharedString>,
5462 icon: Option<IconName>,
5463 cx: &App,
5464) -> AnyElement {
5465 let tab_kbd = h_flex()
5466 .px_0p5()
5467 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5468 .text_size(TextSize::XSmall.rems(cx))
5469 .text_color(cx.theme().colors().text)
5470 .child("tab");
5471
5472 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5473
5474 h_flex()
5475 .py_0p5()
5476 .pl_1()
5477 .pr(padding_right)
5478 .gap_1()
5479 .bg(cx.theme().colors().text_accent.opacity(0.15))
5480 .border_1()
5481 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5482 .rounded_md()
5483 .shadow_sm()
5484 .child(tab_kbd)
5485 .child(Label::new(label).size(LabelSize::Small))
5486 .when_some(icon, |element, icon| {
5487 element.child(
5488 div()
5489 .mt(px(1.5))
5490 .child(Icon::new(icon).size(IconSize::Small)),
5491 )
5492 })
5493 .into_any()
5494}
5495
5496#[allow(clippy::too_many_arguments)]
5497fn prepaint_gutter_button(
5498 button: IconButton,
5499 row: DisplayRow,
5500 line_height: Pixels,
5501 gutter_dimensions: &GutterDimensions,
5502 scroll_pixel_position: gpui::Point<Pixels>,
5503 gutter_hitbox: &Hitbox,
5504 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5505 window: &mut Window,
5506 cx: &mut App,
5507) -> AnyElement {
5508 let mut button = button.into_any_element();
5509 let available_space = size(
5510 AvailableSpace::MinContent,
5511 AvailableSpace::Definite(line_height),
5512 );
5513 let indicator_size = button.layout_as_root(available_space, window, cx);
5514
5515 let blame_width = gutter_dimensions.git_blame_entries_width;
5516 let gutter_width = rows_with_hunk_bounds
5517 .get(&row)
5518 .map(|bounds| bounds.size.width);
5519 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5520
5521 let mut x = left_offset;
5522 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5523 - indicator_size.width
5524 - left_offset;
5525 x += available_width / 2.;
5526
5527 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5528 y += (line_height - indicator_size.height) / 2.;
5529
5530 button.prepaint_as_root(
5531 gutter_hitbox.origin + point(x, y),
5532 available_space,
5533 window,
5534 cx,
5535 );
5536 button
5537}
5538
5539fn render_inline_blame_entry(
5540 blame: &gpui::Entity<GitBlame>,
5541 blame_entry: BlameEntry,
5542 style: &EditorStyle,
5543 workspace: Option<WeakEntity<Workspace>>,
5544 cx: &mut App,
5545) -> AnyElement {
5546 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5547
5548 let author = blame_entry.author.as_deref().unwrap_or_default();
5549 let summary_enabled = ProjectSettings::get_global(cx)
5550 .git
5551 .show_inline_commit_summary();
5552
5553 let text = match blame_entry.summary.as_ref() {
5554 Some(summary) if summary_enabled => {
5555 format!("{}, {} - {}", author, relative_timestamp, summary)
5556 }
5557 _ => format!("{}, {}", author, relative_timestamp),
5558 };
5559
5560 let details = blame.read(cx).details_for_entry(&blame_entry);
5561
5562 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5563
5564 h_flex()
5565 .id("inline-blame")
5566 .w_full()
5567 .font_family(style.text.font().family)
5568 .text_color(cx.theme().status().hint)
5569 .line_height(style.text.line_height)
5570 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5571 .child(text)
5572 .gap_2()
5573 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5574 .into_any()
5575}
5576
5577fn render_blame_entry(
5578 ix: usize,
5579 blame: &gpui::Entity<GitBlame>,
5580 blame_entry: BlameEntry,
5581 style: &EditorStyle,
5582 last_used_color: &mut Option<(PlayerColor, Oid)>,
5583 editor: Entity<Editor>,
5584 cx: &mut App,
5585) -> AnyElement {
5586 let mut sha_color = cx
5587 .theme()
5588 .players()
5589 .color_for_participant(blame_entry.sha.into());
5590 // If the last color we used is the same as the one we get for this line, but
5591 // the commit SHAs are different, then we try again to get a different color.
5592 match *last_used_color {
5593 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5594 let index: u32 = blame_entry.sha.into();
5595 sha_color = cx.theme().players().color_for_participant(index + 1);
5596 }
5597 _ => {}
5598 };
5599 last_used_color.replace((sha_color, blame_entry.sha));
5600
5601 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5602
5603 let short_commit_id = blame_entry.sha.display_short();
5604
5605 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5606 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5607
5608 let details = blame.read(cx).details_for_entry(&blame_entry);
5609
5610 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5611
5612 let tooltip =
5613 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5614
5615 h_flex()
5616 .w_full()
5617 .justify_between()
5618 .font_family(style.text.font().family)
5619 .line_height(style.text.line_height)
5620 .id(("blame", ix))
5621 .text_color(cx.theme().status().hint)
5622 .pr_2()
5623 .gap_2()
5624 .child(
5625 h_flex()
5626 .items_center()
5627 .gap_2()
5628 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5629 .child(name),
5630 )
5631 .child(relative_timestamp)
5632 .on_mouse_down(MouseButton::Right, {
5633 let blame_entry = blame_entry.clone();
5634 let details = details.clone();
5635 move |event, window, cx| {
5636 deploy_blame_entry_context_menu(
5637 &blame_entry,
5638 details.as_ref(),
5639 editor.clone(),
5640 event.position,
5641 window,
5642 cx,
5643 );
5644 }
5645 })
5646 .hover(|style| style.bg(cx.theme().colors().element_hover))
5647 .when_some(
5648 details.and_then(|details| details.permalink),
5649 |this, url| {
5650 let url = url.clone();
5651 this.cursor_pointer().on_click(move |_, _, cx| {
5652 cx.stop_propagation();
5653 cx.open_url(url.as_str())
5654 })
5655 },
5656 )
5657 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5658 .into_any()
5659}
5660
5661fn deploy_blame_entry_context_menu(
5662 blame_entry: &BlameEntry,
5663 details: Option<&CommitDetails>,
5664 editor: Entity<Editor>,
5665 position: gpui::Point<Pixels>,
5666 window: &mut Window,
5667 cx: &mut App,
5668) {
5669 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5670 let sha = format!("{}", blame_entry.sha);
5671 menu.on_blur_subscription(Subscription::new(|| {}))
5672 .entry("Copy commit SHA", None, move |_, cx| {
5673 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5674 })
5675 .when_some(
5676 details.and_then(|details| details.permalink.clone()),
5677 |this, url| {
5678 this.entry("Open permalink", None, move |_, cx| {
5679 cx.open_url(url.as_str())
5680 })
5681 },
5682 )
5683 });
5684
5685 editor.update(cx, move |editor, cx| {
5686 editor.mouse_context_menu = Some(MouseContextMenu::new(
5687 MenuPosition::PinnedToScreen(position),
5688 context_menu,
5689 window,
5690 cx,
5691 ));
5692 cx.notify();
5693 });
5694}
5695
5696#[derive(Debug)]
5697pub(crate) struct LineWithInvisibles {
5698 fragments: SmallVec<[LineFragment; 1]>,
5699 invisibles: Vec<Invisible>,
5700 len: usize,
5701 width: Pixels,
5702 font_size: Pixels,
5703}
5704
5705#[allow(clippy::large_enum_variant)]
5706enum LineFragment {
5707 Text(ShapedLine),
5708 Element {
5709 element: Option<AnyElement>,
5710 size: Size<Pixels>,
5711 len: usize,
5712 },
5713}
5714
5715impl fmt::Debug for LineFragment {
5716 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5717 match self {
5718 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5719 LineFragment::Element { size, len, .. } => f
5720 .debug_struct("Element")
5721 .field("size", size)
5722 .field("len", len)
5723 .finish(),
5724 }
5725 }
5726}
5727
5728impl LineWithInvisibles {
5729 #[allow(clippy::too_many_arguments)]
5730 fn from_chunks<'a>(
5731 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5732 editor_style: &EditorStyle,
5733 max_line_len: usize,
5734 max_line_count: usize,
5735 editor_mode: EditorMode,
5736 text_width: Pixels,
5737 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5738 window: &mut Window,
5739 cx: &mut App,
5740 ) -> Vec<Self> {
5741 let text_style = &editor_style.text;
5742 let mut layouts = Vec::with_capacity(max_line_count);
5743 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5744 let mut line = String::new();
5745 let mut invisibles = Vec::new();
5746 let mut width = Pixels::ZERO;
5747 let mut len = 0;
5748 let mut styles = Vec::new();
5749 let mut non_whitespace_added = false;
5750 let mut row = 0;
5751 let mut line_exceeded_max_len = false;
5752 let font_size = text_style.font_size.to_pixels(window.rem_size());
5753
5754 let ellipsis = SharedString::from("⋯");
5755
5756 for highlighted_chunk in chunks.chain([HighlightedChunk {
5757 text: "\n",
5758 style: None,
5759 is_tab: false,
5760 replacement: None,
5761 }]) {
5762 if let Some(replacement) = highlighted_chunk.replacement {
5763 if !line.is_empty() {
5764 let shaped_line = window
5765 .text_system()
5766 .shape_line(line.clone().into(), font_size, &styles)
5767 .unwrap();
5768 width += shaped_line.width;
5769 len += shaped_line.len;
5770 fragments.push(LineFragment::Text(shaped_line));
5771 line.clear();
5772 styles.clear();
5773 }
5774
5775 match replacement {
5776 ChunkReplacement::Renderer(renderer) => {
5777 let available_width = if renderer.constrain_width {
5778 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5779 ellipsis.clone()
5780 } else {
5781 SharedString::from(Arc::from(highlighted_chunk.text))
5782 };
5783 let shaped_line = window
5784 .text_system()
5785 .shape_line(
5786 chunk,
5787 font_size,
5788 &[text_style.to_run(highlighted_chunk.text.len())],
5789 )
5790 .unwrap();
5791 AvailableSpace::Definite(shaped_line.width)
5792 } else {
5793 AvailableSpace::MinContent
5794 };
5795
5796 let mut element = (renderer.render)(&mut ChunkRendererContext {
5797 context: cx,
5798 window,
5799 max_width: text_width,
5800 });
5801 let line_height = text_style.line_height_in_pixels(window.rem_size());
5802 let size = element.layout_as_root(
5803 size(available_width, AvailableSpace::Definite(line_height)),
5804 window,
5805 cx,
5806 );
5807
5808 width += size.width;
5809 len += highlighted_chunk.text.len();
5810 fragments.push(LineFragment::Element {
5811 element: Some(element),
5812 size,
5813 len: highlighted_chunk.text.len(),
5814 });
5815 }
5816 ChunkReplacement::Str(x) => {
5817 let text_style = if let Some(style) = highlighted_chunk.style {
5818 Cow::Owned(text_style.clone().highlight(style))
5819 } else {
5820 Cow::Borrowed(text_style)
5821 };
5822
5823 let run = TextRun {
5824 len: x.len(),
5825 font: text_style.font(),
5826 color: text_style.color,
5827 background_color: text_style.background_color,
5828 underline: text_style.underline,
5829 strikethrough: text_style.strikethrough,
5830 };
5831 let line_layout = window
5832 .text_system()
5833 .shape_line(x, font_size, &[run])
5834 .unwrap()
5835 .with_len(highlighted_chunk.text.len());
5836
5837 width += line_layout.width;
5838 len += highlighted_chunk.text.len();
5839 fragments.push(LineFragment::Text(line_layout))
5840 }
5841 }
5842 } else {
5843 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5844 if ix > 0 {
5845 let shaped_line = window
5846 .text_system()
5847 .shape_line(line.clone().into(), font_size, &styles)
5848 .unwrap();
5849 width += shaped_line.width;
5850 len += shaped_line.len;
5851 fragments.push(LineFragment::Text(shaped_line));
5852 layouts.push(Self {
5853 width: mem::take(&mut width),
5854 len: mem::take(&mut len),
5855 fragments: mem::take(&mut fragments),
5856 invisibles: std::mem::take(&mut invisibles),
5857 font_size,
5858 });
5859
5860 line.clear();
5861 styles.clear();
5862 row += 1;
5863 line_exceeded_max_len = false;
5864 non_whitespace_added = false;
5865 if row == max_line_count {
5866 return layouts;
5867 }
5868 }
5869
5870 if !line_chunk.is_empty() && !line_exceeded_max_len {
5871 let text_style = if let Some(style) = highlighted_chunk.style {
5872 Cow::Owned(text_style.clone().highlight(style))
5873 } else {
5874 Cow::Borrowed(text_style)
5875 };
5876
5877 if line.len() + line_chunk.len() > max_line_len {
5878 let mut chunk_len = max_line_len - line.len();
5879 while !line_chunk.is_char_boundary(chunk_len) {
5880 chunk_len -= 1;
5881 }
5882 line_chunk = &line_chunk[..chunk_len];
5883 line_exceeded_max_len = true;
5884 }
5885
5886 styles.push(TextRun {
5887 len: line_chunk.len(),
5888 font: text_style.font(),
5889 color: text_style.color,
5890 background_color: text_style.background_color,
5891 underline: text_style.underline,
5892 strikethrough: text_style.strikethrough,
5893 });
5894
5895 if editor_mode == EditorMode::Full {
5896 // Line wrap pads its contents with fake whitespaces,
5897 // avoid printing them
5898 let is_soft_wrapped = is_row_soft_wrapped(row);
5899 if highlighted_chunk.is_tab {
5900 if non_whitespace_added || !is_soft_wrapped {
5901 invisibles.push(Invisible::Tab {
5902 line_start_offset: line.len(),
5903 line_end_offset: line.len() + line_chunk.len(),
5904 });
5905 }
5906 } else {
5907 invisibles.extend(line_chunk.char_indices().filter_map(
5908 |(index, c)| {
5909 let is_whitespace = c.is_whitespace();
5910 non_whitespace_added |= !is_whitespace;
5911 if is_whitespace
5912 && (non_whitespace_added || !is_soft_wrapped)
5913 {
5914 Some(Invisible::Whitespace {
5915 line_offset: line.len() + index,
5916 })
5917 } else {
5918 None
5919 }
5920 },
5921 ))
5922 }
5923 }
5924
5925 line.push_str(line_chunk);
5926 }
5927 }
5928 }
5929 }
5930
5931 layouts
5932 }
5933
5934 #[allow(clippy::too_many_arguments)]
5935 fn prepaint(
5936 &mut self,
5937 line_height: Pixels,
5938 scroll_pixel_position: gpui::Point<Pixels>,
5939 row: DisplayRow,
5940 content_origin: gpui::Point<Pixels>,
5941 line_elements: &mut SmallVec<[AnyElement; 1]>,
5942 window: &mut Window,
5943 cx: &mut App,
5944 ) {
5945 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
5946 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
5947 for fragment in &mut self.fragments {
5948 match fragment {
5949 LineFragment::Text(line) => {
5950 fragment_origin.x += line.width;
5951 }
5952 LineFragment::Element { element, size, .. } => {
5953 let mut element = element
5954 .take()
5955 .expect("you can't prepaint LineWithInvisibles twice");
5956
5957 // Center the element vertically within the line.
5958 let mut element_origin = fragment_origin;
5959 element_origin.y += (line_height - size.height) / 2.;
5960 element.prepaint_at(element_origin, window, cx);
5961 line_elements.push(element);
5962
5963 fragment_origin.x += size.width;
5964 }
5965 }
5966 }
5967 }
5968
5969 #[allow(clippy::too_many_arguments)]
5970 fn draw(
5971 &self,
5972 layout: &EditorLayout,
5973 row: DisplayRow,
5974 content_origin: gpui::Point<Pixels>,
5975 whitespace_setting: ShowWhitespaceSetting,
5976 selection_ranges: &[Range<DisplayPoint>],
5977 window: &mut Window,
5978 cx: &mut App,
5979 ) {
5980 let line_height = layout.position_map.line_height;
5981 let line_y = line_height
5982 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
5983
5984 let mut fragment_origin =
5985 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
5986
5987 for fragment in &self.fragments {
5988 match fragment {
5989 LineFragment::Text(line) => {
5990 line.paint(fragment_origin, line_height, window, cx)
5991 .log_err();
5992 fragment_origin.x += line.width;
5993 }
5994 LineFragment::Element { size, .. } => {
5995 fragment_origin.x += size.width;
5996 }
5997 }
5998 }
5999
6000 self.draw_invisibles(
6001 selection_ranges,
6002 layout,
6003 content_origin,
6004 line_y,
6005 row,
6006 line_height,
6007 whitespace_setting,
6008 window,
6009 cx,
6010 );
6011 }
6012
6013 #[allow(clippy::too_many_arguments)]
6014 fn draw_invisibles(
6015 &self,
6016 selection_ranges: &[Range<DisplayPoint>],
6017 layout: &EditorLayout,
6018 content_origin: gpui::Point<Pixels>,
6019 line_y: Pixels,
6020 row: DisplayRow,
6021 line_height: Pixels,
6022 whitespace_setting: ShowWhitespaceSetting,
6023 window: &mut Window,
6024 cx: &mut App,
6025 ) {
6026 let extract_whitespace_info = |invisible: &Invisible| {
6027 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6028 Invisible::Tab {
6029 line_start_offset,
6030 line_end_offset,
6031 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6032 Invisible::Whitespace { line_offset } => {
6033 (*line_offset, line_offset + 1, &layout.space_invisible)
6034 }
6035 };
6036
6037 let x_offset = self.x_for_index(token_offset);
6038 let invisible_offset =
6039 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6040 let origin = content_origin
6041 + gpui::point(
6042 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6043 line_y,
6044 );
6045
6046 (
6047 [token_offset, token_end_offset],
6048 Box::new(move |window: &mut Window, cx: &mut App| {
6049 invisible_symbol
6050 .paint(origin, line_height, window, cx)
6051 .log_err();
6052 }),
6053 )
6054 };
6055
6056 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6057 match whitespace_setting {
6058 ShowWhitespaceSetting::None => (),
6059 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6060 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6061 let invisible_point = DisplayPoint::new(row, start as u32);
6062 if !selection_ranges
6063 .iter()
6064 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6065 {
6066 return;
6067 }
6068
6069 paint(window, cx);
6070 }),
6071
6072 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6073 // - It is a tab
6074 // - It is adjacent to an edge (start or end)
6075 // - It is adjacent to a whitespace (left or right)
6076 ShowWhitespaceSetting::Boundary => {
6077 // 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
6078 // the above cases.
6079 // Note: We zip in the original `invisibles` to check for tab equality
6080 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6081 for (([start, end], paint), invisible) in
6082 invisible_iter.zip_eq(self.invisibles.iter())
6083 {
6084 let should_render = match (&last_seen, invisible) {
6085 (_, Invisible::Tab { .. }) => true,
6086 (Some((_, last_end, _)), _) => *last_end == start,
6087 _ => false,
6088 };
6089
6090 if should_render || start == 0 || end == self.len {
6091 paint(window, cx);
6092
6093 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6094 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6095 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6096 // Note that we need to make sure that the last one is actually adjacent
6097 if !should_render_last && last_end == start {
6098 paint_last(window, cx);
6099 }
6100 }
6101 }
6102
6103 // Manually render anything within a selection
6104 let invisible_point = DisplayPoint::new(row, start as u32);
6105 if selection_ranges.iter().any(|region| {
6106 region.start <= invisible_point && invisible_point < region.end
6107 }) {
6108 paint(window, cx);
6109 }
6110
6111 last_seen = Some((should_render, end, paint));
6112 }
6113 }
6114 }
6115 }
6116
6117 pub fn x_for_index(&self, index: usize) -> Pixels {
6118 let mut fragment_start_x = Pixels::ZERO;
6119 let mut fragment_start_index = 0;
6120
6121 for fragment in &self.fragments {
6122 match fragment {
6123 LineFragment::Text(shaped_line) => {
6124 let fragment_end_index = fragment_start_index + shaped_line.len;
6125 if index < fragment_end_index {
6126 return fragment_start_x
6127 + shaped_line.x_for_index(index - fragment_start_index);
6128 }
6129 fragment_start_x += shaped_line.width;
6130 fragment_start_index = fragment_end_index;
6131 }
6132 LineFragment::Element { len, size, .. } => {
6133 let fragment_end_index = fragment_start_index + len;
6134 if index < fragment_end_index {
6135 return fragment_start_x;
6136 }
6137 fragment_start_x += size.width;
6138 fragment_start_index = fragment_end_index;
6139 }
6140 }
6141 }
6142
6143 fragment_start_x
6144 }
6145
6146 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6147 let mut fragment_start_x = Pixels::ZERO;
6148 let mut fragment_start_index = 0;
6149
6150 for fragment in &self.fragments {
6151 match fragment {
6152 LineFragment::Text(shaped_line) => {
6153 let fragment_end_x = fragment_start_x + shaped_line.width;
6154 if x < fragment_end_x {
6155 return Some(
6156 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6157 );
6158 }
6159 fragment_start_x = fragment_end_x;
6160 fragment_start_index += shaped_line.len;
6161 }
6162 LineFragment::Element { len, size, .. } => {
6163 let fragment_end_x = fragment_start_x + size.width;
6164 if x < fragment_end_x {
6165 return Some(fragment_start_index);
6166 }
6167 fragment_start_index += len;
6168 fragment_start_x = fragment_end_x;
6169 }
6170 }
6171 }
6172
6173 None
6174 }
6175
6176 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6177 let mut fragment_start_index = 0;
6178
6179 for fragment in &self.fragments {
6180 match fragment {
6181 LineFragment::Text(shaped_line) => {
6182 let fragment_end_index = fragment_start_index + shaped_line.len;
6183 if index < fragment_end_index {
6184 return shaped_line.font_id_for_index(index - fragment_start_index);
6185 }
6186 fragment_start_index = fragment_end_index;
6187 }
6188 LineFragment::Element { len, .. } => {
6189 let fragment_end_index = fragment_start_index + len;
6190 if index < fragment_end_index {
6191 return None;
6192 }
6193 fragment_start_index = fragment_end_index;
6194 }
6195 }
6196 }
6197
6198 None
6199 }
6200}
6201
6202#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6203enum Invisible {
6204 /// A tab character
6205 ///
6206 /// A tab character is internally represented by spaces (configured by the user's tab width)
6207 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6208 /// adjacency checks.
6209 Tab {
6210 line_start_offset: usize,
6211 line_end_offset: usize,
6212 },
6213 Whitespace {
6214 line_offset: usize,
6215 },
6216}
6217
6218impl EditorElement {
6219 /// Returns the rem size to use when rendering the [`EditorElement`].
6220 ///
6221 /// This allows UI elements to scale based on the `buffer_font_size`.
6222 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6223 match self.editor.read(cx).mode {
6224 EditorMode::Full => {
6225 let buffer_font_size = self.style.text.font_size;
6226 match buffer_font_size {
6227 AbsoluteLength::Pixels(pixels) => {
6228 let rem_size_scale = {
6229 // Our default UI font size is 14px on a 16px base scale.
6230 // This means the default UI font size is 0.875rems.
6231 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6232
6233 // We then determine the delta between a single rem and the default font
6234 // size scale.
6235 let default_font_size_delta = 1. - default_font_size_scale;
6236
6237 // Finally, we add this delta to 1rem to get the scale factor that
6238 // should be used to scale up the UI.
6239 1. + default_font_size_delta
6240 };
6241
6242 Some(pixels * rem_size_scale)
6243 }
6244 AbsoluteLength::Rems(rems) => {
6245 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6246 }
6247 }
6248 }
6249 // We currently use single-line and auto-height editors in UI contexts,
6250 // so we don't want to scale everything with the buffer font size, as it
6251 // ends up looking off.
6252 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6253 }
6254 }
6255}
6256
6257impl Element for EditorElement {
6258 type RequestLayoutState = ();
6259 type PrepaintState = EditorLayout;
6260
6261 fn id(&self) -> Option<ElementId> {
6262 None
6263 }
6264
6265 fn request_layout(
6266 &mut self,
6267 _: Option<&GlobalElementId>,
6268 window: &mut Window,
6269 cx: &mut App,
6270 ) -> (gpui::LayoutId, ()) {
6271 let rem_size = self.rem_size(cx);
6272 window.with_rem_size(rem_size, |window| {
6273 self.editor.update(cx, |editor, cx| {
6274 editor.set_style(self.style.clone(), window, cx);
6275
6276 let layout_id = match editor.mode {
6277 EditorMode::SingleLine { auto_width } => {
6278 let rem_size = window.rem_size();
6279
6280 let height = self.style.text.line_height_in_pixels(rem_size);
6281 if auto_width {
6282 let editor_handle = cx.entity().clone();
6283 let style = self.style.clone();
6284 window.request_measured_layout(
6285 Style::default(),
6286 move |_, _, window, cx| {
6287 let editor_snapshot = editor_handle
6288 .update(cx, |editor, cx| editor.snapshot(window, cx));
6289 let line = Self::layout_lines(
6290 DisplayRow(0)..DisplayRow(1),
6291 &editor_snapshot,
6292 &style,
6293 px(f32::MAX),
6294 |_| false, // Single lines never soft wrap
6295 window,
6296 cx,
6297 )
6298 .pop()
6299 .unwrap();
6300
6301 let font_id =
6302 window.text_system().resolve_font(&style.text.font());
6303 let font_size =
6304 style.text.font_size.to_pixels(window.rem_size());
6305 let em_width = window
6306 .text_system()
6307 .typographic_bounds(font_id, font_size, 'm')
6308 .unwrap()
6309 .size
6310 .width;
6311
6312 size(line.width + em_width, height)
6313 },
6314 )
6315 } else {
6316 let mut style = Style::default();
6317 style.size.height = height.into();
6318 style.size.width = relative(1.).into();
6319 window.request_layout(style, None, cx)
6320 }
6321 }
6322 EditorMode::AutoHeight { max_lines } => {
6323 let editor_handle = cx.entity().clone();
6324 let max_line_number_width =
6325 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6326 window.request_measured_layout(
6327 Style::default(),
6328 move |known_dimensions, available_space, window, cx| {
6329 editor_handle
6330 .update(cx, |editor, cx| {
6331 compute_auto_height_layout(
6332 editor,
6333 max_lines,
6334 max_line_number_width,
6335 known_dimensions,
6336 available_space.width,
6337 window,
6338 cx,
6339 )
6340 })
6341 .unwrap_or_default()
6342 },
6343 )
6344 }
6345 EditorMode::Full => {
6346 let mut style = Style::default();
6347 style.size.width = relative(1.).into();
6348 style.size.height = relative(1.).into();
6349 window.request_layout(style, None, cx)
6350 }
6351 };
6352
6353 (layout_id, ())
6354 })
6355 })
6356 }
6357
6358 fn prepaint(
6359 &mut self,
6360 _: Option<&GlobalElementId>,
6361 bounds: Bounds<Pixels>,
6362 _: &mut Self::RequestLayoutState,
6363 window: &mut Window,
6364 cx: &mut App,
6365 ) -> Self::PrepaintState {
6366 let text_style = TextStyleRefinement {
6367 font_size: Some(self.style.text.font_size),
6368 line_height: Some(self.style.text.line_height),
6369 ..Default::default()
6370 };
6371 let focus_handle = self.editor.focus_handle(cx);
6372 window.set_view_id(self.editor.entity_id());
6373 window.set_focus_handle(&focus_handle, cx);
6374
6375 let rem_size = self.rem_size(cx);
6376 window.with_rem_size(rem_size, |window| {
6377 window.with_text_style(Some(text_style), |window| {
6378 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6379 let mut snapshot = self
6380 .editor
6381 .update(cx, |editor, cx| editor.snapshot(window, cx));
6382 let style = self.style.clone();
6383
6384 let font_id = window.text_system().resolve_font(&style.text.font());
6385 let font_size = style.text.font_size.to_pixels(window.rem_size());
6386 let line_height = style.text.line_height_in_pixels(window.rem_size());
6387 let em_width = window
6388 .text_system()
6389 .typographic_bounds(font_id, font_size, 'm')
6390 .unwrap()
6391 .size
6392 .width;
6393 let em_advance = window
6394 .text_system()
6395 .advance(font_id, font_size, 'm')
6396 .unwrap()
6397 .width;
6398
6399 let letter_size = size(em_width, line_height);
6400
6401 let gutter_dimensions = snapshot.gutter_dimensions(
6402 font_id,
6403 font_size,
6404 em_width,
6405 em_advance,
6406 self.max_line_number_width(&snapshot, window, cx),
6407 cx,
6408 );
6409 let text_width = bounds.size.width - gutter_dimensions.width;
6410
6411 let editor_width = text_width - gutter_dimensions.margin - em_width;
6412
6413 snapshot = self.editor.update(cx, |editor, cx| {
6414 editor.last_bounds = Some(bounds);
6415 editor.gutter_dimensions = gutter_dimensions;
6416 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6417
6418 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6419 snapshot
6420 } else {
6421 let wrap_width = match editor.soft_wrap_mode(cx) {
6422 SoftWrap::GitDiff => None,
6423 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6424 SoftWrap::EditorWidth => Some(editor_width),
6425 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6426 SoftWrap::Bounded(column) => {
6427 Some(editor_width.min(column as f32 * em_advance))
6428 }
6429 };
6430
6431 if editor.set_wrap_width(wrap_width, cx) {
6432 editor.snapshot(window, cx)
6433 } else {
6434 snapshot
6435 }
6436 }
6437 });
6438
6439 let wrap_guides = self
6440 .editor
6441 .read(cx)
6442 .wrap_guides(cx)
6443 .iter()
6444 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6445 .collect::<SmallVec<[_; 2]>>();
6446
6447 let hitbox = window.insert_hitbox(bounds, false);
6448 let gutter_hitbox =
6449 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6450 let text_hitbox = window.insert_hitbox(
6451 Bounds {
6452 origin: gutter_hitbox.top_right(),
6453 size: size(text_width, bounds.size.height),
6454 },
6455 false,
6456 );
6457 // Offset the content_bounds from the text_bounds by the gutter margin (which
6458 // is roughly half a character wide) to make hit testing work more like how we want.
6459 let content_origin =
6460 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6461
6462 let scrollbar_bounds =
6463 Bounds::from_corners(content_origin, bounds.bottom_right());
6464
6465 let height_in_lines = scrollbar_bounds.size.height / line_height;
6466
6467 // NOTE: The max row number in the current file, minus one
6468 let max_row = snapshot.max_point().row().as_f32();
6469
6470 // NOTE: The max scroll position for the top of the window
6471 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6472 (max_row - height_in_lines + 1.).max(0.)
6473 } else {
6474 let settings = EditorSettings::get_global(cx);
6475 match settings.scroll_beyond_last_line {
6476 ScrollBeyondLastLine::OnePage => max_row,
6477 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6478 ScrollBeyondLastLine::VerticalScrollMargin => {
6479 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6480 .max(0.)
6481 }
6482 }
6483 };
6484
6485 // TODO: Autoscrolling for both axes
6486 let mut autoscroll_request = None;
6487 let mut autoscroll_containing_element = false;
6488 let mut autoscroll_horizontally = false;
6489 self.editor.update(cx, |editor, cx| {
6490 autoscroll_request = editor.autoscroll_request();
6491 autoscroll_containing_element =
6492 autoscroll_request.is_some() || editor.has_pending_selection();
6493 // TODO: Is this horizontal or vertical?!
6494 autoscroll_horizontally = editor.autoscroll_vertically(
6495 bounds,
6496 line_height,
6497 max_scroll_top,
6498 window,
6499 cx,
6500 );
6501 snapshot = editor.snapshot(window, cx);
6502 });
6503
6504 let mut scroll_position = snapshot.scroll_position();
6505 // The scroll position is a fractional point, the whole number of which represents
6506 // the top of the window in terms of display rows.
6507 let start_row = DisplayRow(scroll_position.y as u32);
6508 let max_row = snapshot.max_point().row();
6509 let end_row = cmp::min(
6510 (scroll_position.y + height_in_lines).ceil() as u32,
6511 max_row.next_row().0,
6512 );
6513 let end_row = DisplayRow(end_row);
6514
6515 let row_infos = snapshot
6516 .row_infos(start_row)
6517 .take((start_row..end_row).len())
6518 .collect::<Vec<RowInfo>>();
6519 let is_row_soft_wrapped = |row: usize| {
6520 row_infos
6521 .get(row)
6522 .map_or(true, |info| info.buffer_row.is_none())
6523 };
6524
6525 let start_anchor = if start_row == Default::default() {
6526 Anchor::min()
6527 } else {
6528 snapshot.buffer_snapshot.anchor_before(
6529 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6530 )
6531 };
6532 let end_anchor = if end_row > max_row {
6533 Anchor::max()
6534 } else {
6535 snapshot.buffer_snapshot.anchor_before(
6536 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6537 )
6538 };
6539
6540 let mut highlighted_rows = self
6541 .editor
6542 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6543
6544 for (ix, row_info) in row_infos.iter().enumerate() {
6545 let color = match row_info.diff_status {
6546 Some(DiffHunkStatus::Added) => style.status.created_background,
6547 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6548 _ => continue,
6549 };
6550 highlighted_rows
6551 .entry(start_row + DisplayRow(ix as u32))
6552 .or_insert(color);
6553 }
6554
6555 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6556 start_anchor..end_anchor,
6557 &snapshot.display_snapshot,
6558 cx.theme().colors(),
6559 );
6560 let highlighted_gutter_ranges =
6561 self.editor.read(cx).gutter_highlights_in_range(
6562 start_anchor..end_anchor,
6563 &snapshot.display_snapshot,
6564 cx,
6565 );
6566
6567 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6568 start_anchor..end_anchor,
6569 &snapshot.display_snapshot,
6570 cx,
6571 );
6572
6573 let (local_selections, selected_buffer_ids): (
6574 Vec<Selection<Point>>,
6575 Vec<BufferId>,
6576 ) = self.editor.update(cx, |editor, cx| {
6577 let all_selections = editor.selections.all::<Point>(cx);
6578 let selected_buffer_ids = if editor.is_singleton(cx) {
6579 Vec::new()
6580 } else {
6581 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6582
6583 for selection in all_selections {
6584 for buffer_id in snapshot
6585 .buffer_snapshot
6586 .buffer_ids_for_range(selection.range())
6587 {
6588 if selected_buffer_ids.last() != Some(&buffer_id) {
6589 selected_buffer_ids.push(buffer_id);
6590 }
6591 }
6592 }
6593
6594 selected_buffer_ids
6595 };
6596
6597 let mut selections = editor
6598 .selections
6599 .disjoint_in_range(start_anchor..end_anchor, cx);
6600 selections.extend(editor.selections.pending(cx));
6601
6602 (selections, selected_buffer_ids)
6603 });
6604
6605 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6606 start_anchor,
6607 end_anchor,
6608 &local_selections,
6609 &snapshot,
6610 start_row,
6611 end_row,
6612 window,
6613 cx,
6614 );
6615
6616 let line_numbers = self.layout_line_numbers(
6617 Some(&gutter_hitbox),
6618 gutter_dimensions,
6619 line_height,
6620 scroll_position,
6621 start_row..end_row,
6622 &row_infos,
6623 newest_selection_head,
6624 &snapshot,
6625 window,
6626 cx,
6627 );
6628
6629 let mut crease_toggles =
6630 window.with_element_namespace("crease_toggles", |window| {
6631 self.layout_crease_toggles(
6632 start_row..end_row,
6633 &row_infos,
6634 &active_rows,
6635 &snapshot,
6636 window,
6637 cx,
6638 )
6639 });
6640 let crease_trailers =
6641 window.with_element_namespace("crease_trailers", |window| {
6642 self.layout_crease_trailers(
6643 row_infos.iter().copied(),
6644 &snapshot,
6645 window,
6646 cx,
6647 )
6648 });
6649
6650 let display_hunks = self.layout_gutter_diff_hunks(
6651 line_height,
6652 &gutter_hitbox,
6653 start_row..end_row,
6654 &snapshot,
6655 window,
6656 cx,
6657 );
6658
6659 let mut line_layouts = Self::layout_lines(
6660 start_row..end_row,
6661 &snapshot,
6662 &self.style,
6663 editor_width,
6664 is_row_soft_wrapped,
6665 window,
6666 cx,
6667 );
6668
6669 let longest_line_blame_width = self
6670 .editor
6671 .update(cx, |editor, cx| {
6672 if !editor.show_git_blame_inline {
6673 return None;
6674 }
6675 let blame = editor.blame.as_ref()?;
6676 let blame_entry = blame
6677 .update(cx, |blame, cx| {
6678 let row_infos =
6679 snapshot.row_infos(snapshot.longest_row()).next()?;
6680 blame.blame_for_rows(&[row_infos], cx).next()
6681 })
6682 .flatten()?;
6683 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
6684 let mut element = render_inline_blame_entry(
6685 blame,
6686 blame_entry,
6687 &style,
6688 workspace,
6689 cx,
6690 );
6691 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6692 Some(
6693 element
6694 .layout_as_root(AvailableSpace::min_size(), window, cx)
6695 .width
6696 + inline_blame_padding,
6697 )
6698 })
6699 .unwrap_or(Pixels::ZERO);
6700
6701 let longest_line_width = layout_line(
6702 snapshot.longest_row(),
6703 &snapshot,
6704 &style,
6705 editor_width,
6706 is_row_soft_wrapped,
6707 window,
6708 cx,
6709 )
6710 .width;
6711
6712 let scrollbar_range_data = ScrollbarRangeData::new(
6713 scrollbar_bounds,
6714 letter_size,
6715 &snapshot,
6716 longest_line_width,
6717 longest_line_blame_width,
6718 &style,
6719 cx,
6720 );
6721
6722 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6723 let mut scroll_width = scroll_range_bounds.size.width;
6724
6725 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6726 snapshot.sticky_header_excerpt(start_row)
6727 } else {
6728 None
6729 };
6730 let sticky_header_excerpt_id =
6731 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6732
6733 let blocks = window.with_element_namespace("blocks", |window| {
6734 self.render_blocks(
6735 start_row..end_row,
6736 &snapshot,
6737 &hitbox,
6738 &text_hitbox,
6739 editor_width,
6740 &mut scroll_width,
6741 &gutter_dimensions,
6742 em_width,
6743 gutter_dimensions.full_width(),
6744 line_height,
6745 &line_layouts,
6746 &local_selections,
6747 &selected_buffer_ids,
6748 is_row_soft_wrapped,
6749 sticky_header_excerpt_id,
6750 window,
6751 cx,
6752 )
6753 });
6754 let mut blocks = match blocks {
6755 Ok(blocks) => blocks,
6756 Err(resized_blocks) => {
6757 self.editor.update(cx, |editor, cx| {
6758 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6759 });
6760 return self.prepaint(None, bounds, &mut (), window, cx);
6761 }
6762 };
6763
6764 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6765 window.with_element_namespace("blocks", |window| {
6766 self.layout_sticky_buffer_header(
6767 sticky_header_excerpt,
6768 scroll_position.y,
6769 line_height,
6770 &snapshot,
6771 &hitbox,
6772 &selected_buffer_ids,
6773 window,
6774 cx,
6775 )
6776 })
6777 });
6778
6779 let start_buffer_row =
6780 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6781 let end_buffer_row =
6782 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6783
6784 let scroll_max = point(
6785 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6786 max_row.as_f32(),
6787 );
6788
6789 self.editor.update(cx, |editor, cx| {
6790 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6791
6792 let autoscrolled = if autoscroll_horizontally {
6793 editor.autoscroll_horizontally(
6794 start_row,
6795 editor_width - (letter_size.width / 2.0),
6796 scroll_width,
6797 em_width,
6798 &line_layouts,
6799 cx,
6800 )
6801 } else {
6802 false
6803 };
6804
6805 if clamped || autoscrolled {
6806 snapshot = editor.snapshot(window, cx);
6807 scroll_position = snapshot.scroll_position();
6808 }
6809 });
6810
6811 let scroll_pixel_position = point(
6812 scroll_position.x * em_width,
6813 scroll_position.y * line_height,
6814 );
6815
6816 let indent_guides = self.layout_indent_guides(
6817 content_origin,
6818 text_hitbox.origin,
6819 start_buffer_row..end_buffer_row,
6820 scroll_pixel_position,
6821 line_height,
6822 &snapshot,
6823 window,
6824 cx,
6825 );
6826
6827 let crease_trailers =
6828 window.with_element_namespace("crease_trailers", |window| {
6829 self.prepaint_crease_trailers(
6830 crease_trailers,
6831 &line_layouts,
6832 line_height,
6833 content_origin,
6834 scroll_pixel_position,
6835 em_width,
6836 window,
6837 cx,
6838 )
6839 });
6840
6841 let mut inline_blame = None;
6842 if let Some(newest_selection_head) = newest_selection_head {
6843 let display_row = newest_selection_head.row();
6844 if (start_row..end_row).contains(&display_row) {
6845 let line_ix = display_row.minus(start_row) as usize;
6846 let row_info = &row_infos[line_ix];
6847 let line_layout = &line_layouts[line_ix];
6848 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
6849 inline_blame = self.layout_inline_blame(
6850 display_row,
6851 row_info,
6852 line_layout,
6853 crease_trailer_layout,
6854 em_width,
6855 content_origin,
6856 scroll_pixel_position,
6857 line_height,
6858 window,
6859 cx,
6860 );
6861 }
6862 }
6863
6864 let blamed_display_rows = self.layout_blame_entries(
6865 &row_infos,
6866 em_width,
6867 scroll_position,
6868 line_height,
6869 &gutter_hitbox,
6870 gutter_dimensions.git_blame_entries_width,
6871 window,
6872 cx,
6873 );
6874
6875 let scroll_max = point(
6876 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6877 max_scroll_top,
6878 );
6879
6880 self.editor.update(cx, |editor, cx| {
6881 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6882
6883 let autoscrolled = if autoscroll_horizontally {
6884 editor.autoscroll_horizontally(
6885 start_row,
6886 editor_width - (letter_size.width / 2.0),
6887 scroll_width,
6888 em_width,
6889 &line_layouts,
6890 cx,
6891 )
6892 } else {
6893 false
6894 };
6895
6896 if clamped || autoscrolled {
6897 snapshot = editor.snapshot(window, cx);
6898 scroll_position = snapshot.scroll_position();
6899 }
6900 });
6901
6902 let line_elements = self.prepaint_lines(
6903 start_row,
6904 &mut line_layouts,
6905 line_height,
6906 scroll_pixel_position,
6907 content_origin,
6908 window,
6909 cx,
6910 );
6911
6912 let mut block_start_rows = HashSet::default();
6913
6914 window.with_element_namespace("blocks", |window| {
6915 self.layout_blocks(
6916 &mut blocks,
6917 &mut block_start_rows,
6918 &hitbox,
6919 line_height,
6920 scroll_pixel_position,
6921 window,
6922 cx,
6923 );
6924 });
6925
6926 let cursors = self.collect_cursors(&snapshot, cx);
6927 let visible_row_range = start_row..end_row;
6928 let non_visible_cursors = cursors
6929 .iter()
6930 .any(move |c| !visible_row_range.contains(&c.0.row()));
6931
6932 let visible_cursors = self.layout_visible_cursors(
6933 &snapshot,
6934 &selections,
6935 &block_start_rows,
6936 start_row..end_row,
6937 &line_layouts,
6938 &text_hitbox,
6939 content_origin,
6940 scroll_position,
6941 scroll_pixel_position,
6942 line_height,
6943 em_width,
6944 em_advance,
6945 autoscroll_containing_element,
6946 window,
6947 cx,
6948 );
6949
6950 let scrollbars_layout = self.layout_scrollbars(
6951 &snapshot,
6952 scrollbar_range_data,
6953 scroll_position,
6954 non_visible_cursors,
6955 window,
6956 cx,
6957 );
6958
6959 let gutter_settings = EditorSettings::get_global(cx).gutter;
6960
6961 let rows_with_hunk_bounds = display_hunks
6962 .iter()
6963 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
6964 .fold(
6965 HashMap::default(),
6966 |mut rows_with_hunk_bounds, (hunk, bounds)| {
6967 match hunk {
6968 DisplayDiffHunk::Folded { display_row } => {
6969 rows_with_hunk_bounds.insert(*display_row, bounds);
6970 }
6971 DisplayDiffHunk::Unfolded {
6972 display_row_range, ..
6973 } => {
6974 for display_row in display_row_range.iter_rows() {
6975 rows_with_hunk_bounds.insert(display_row, bounds);
6976 }
6977 }
6978 }
6979 rows_with_hunk_bounds
6980 },
6981 );
6982 let mut code_actions_indicator = None;
6983 if let Some(newest_selection_head) = newest_selection_head {
6984 if (start_row..end_row).contains(&newest_selection_head.row()) {
6985 self.layout_context_menu(
6986 line_height,
6987 &text_hitbox,
6988 content_origin,
6989 start_row,
6990 scroll_pixel_position,
6991 &line_layouts,
6992 newest_selection_head,
6993 gutter_dimensions.width - gutter_dimensions.left_padding,
6994 window,
6995 cx,
6996 );
6997
6998 let show_code_actions = snapshot
6999 .show_code_actions
7000 .unwrap_or(gutter_settings.code_actions);
7001 if show_code_actions {
7002 let newest_selection_point =
7003 newest_selection_head.to_point(&snapshot.display_snapshot);
7004 if !snapshot
7005 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7006 {
7007 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7008 MultiBufferRow(newest_selection_point.row),
7009 );
7010 if let Some((buffer, range)) = buffer {
7011 let buffer_id = buffer.remote_id();
7012 let row = range.start.row;
7013 let has_test_indicator = self
7014 .editor
7015 .read(cx)
7016 .tasks
7017 .contains_key(&(buffer_id, row));
7018
7019 if !has_test_indicator {
7020 code_actions_indicator = self
7021 .layout_code_actions_indicator(
7022 line_height,
7023 newest_selection_head,
7024 scroll_pixel_position,
7025 &gutter_dimensions,
7026 &gutter_hitbox,
7027 &rows_with_hunk_bounds,
7028 window,
7029 cx,
7030 );
7031 }
7032 }
7033 }
7034 }
7035 }
7036 }
7037
7038 let test_indicators = if gutter_settings.runnables {
7039 self.layout_run_indicators(
7040 line_height,
7041 start_row..end_row,
7042 scroll_pixel_position,
7043 &gutter_dimensions,
7044 &gutter_hitbox,
7045 &rows_with_hunk_bounds,
7046 &snapshot,
7047 window,
7048 cx,
7049 )
7050 } else {
7051 Vec::new()
7052 };
7053
7054 self.layout_signature_help(
7055 &hitbox,
7056 content_origin,
7057 scroll_pixel_position,
7058 newest_selection_head,
7059 start_row,
7060 &line_layouts,
7061 line_height,
7062 em_width,
7063 window,
7064 cx,
7065 );
7066
7067 if !cx.has_active_drag() {
7068 self.layout_hover_popovers(
7069 &snapshot,
7070 &hitbox,
7071 &text_hitbox,
7072 start_row..end_row,
7073 content_origin,
7074 scroll_pixel_position,
7075 &line_layouts,
7076 line_height,
7077 em_width,
7078 window,
7079 cx,
7080 );
7081 }
7082
7083 let inline_completion_popover = self.layout_inline_completion_popover(
7084 &text_hitbox.bounds,
7085 &snapshot,
7086 start_row..end_row,
7087 scroll_position.y,
7088 scroll_position.y + height_in_lines,
7089 &line_layouts,
7090 line_height,
7091 scroll_pixel_position,
7092 editor_width,
7093 &style,
7094 window,
7095 cx,
7096 );
7097
7098 let mouse_context_menu = self.layout_mouse_context_menu(
7099 &snapshot,
7100 start_row..end_row,
7101 content_origin,
7102 window,
7103 cx,
7104 );
7105
7106 window.with_element_namespace("crease_toggles", |window| {
7107 self.prepaint_crease_toggles(
7108 &mut crease_toggles,
7109 line_height,
7110 &gutter_dimensions,
7111 gutter_settings,
7112 scroll_pixel_position,
7113 &gutter_hitbox,
7114 window,
7115 cx,
7116 )
7117 });
7118
7119 let invisible_symbol_font_size = font_size / 2.;
7120 let tab_invisible = window
7121 .text_system()
7122 .shape_line(
7123 "→".into(),
7124 invisible_symbol_font_size,
7125 &[TextRun {
7126 len: "→".len(),
7127 font: self.style.text.font(),
7128 color: cx.theme().colors().editor_invisible,
7129 background_color: None,
7130 underline: None,
7131 strikethrough: None,
7132 }],
7133 )
7134 .unwrap();
7135 let space_invisible = window
7136 .text_system()
7137 .shape_line(
7138 "•".into(),
7139 invisible_symbol_font_size,
7140 &[TextRun {
7141 len: "•".len(),
7142 font: self.style.text.font(),
7143 color: cx.theme().colors().editor_invisible,
7144 background_color: None,
7145 underline: None,
7146 strikethrough: None,
7147 }],
7148 )
7149 .unwrap();
7150
7151 let mode = snapshot.mode;
7152
7153 let position_map = Rc::new(PositionMap {
7154 size: bounds.size,
7155 scroll_pixel_position,
7156 scroll_max,
7157 line_layouts,
7158 line_height,
7159 em_width,
7160 em_advance,
7161 snapshot,
7162 });
7163
7164 let hunk_controls = self.layout_diff_hunk_controls(
7165 start_row..end_row,
7166 &row_infos,
7167 &text_hitbox,
7168 &position_map,
7169 newest_selection_head,
7170 line_height,
7171 scroll_pixel_position,
7172 &display_hunks,
7173 self.editor.clone(),
7174 window,
7175 cx,
7176 );
7177
7178 EditorLayout {
7179 mode,
7180 position_map,
7181 visible_display_row_range: start_row..end_row,
7182 wrap_guides,
7183 indent_guides,
7184 hitbox,
7185 text_hitbox,
7186 gutter_hitbox,
7187 display_hunks,
7188 content_origin,
7189 scrollbars_layout,
7190 active_rows,
7191 highlighted_rows,
7192 highlighted_ranges,
7193 highlighted_gutter_ranges,
7194 redacted_ranges,
7195 line_elements,
7196 line_numbers,
7197 blamed_display_rows,
7198 inline_blame,
7199 blocks,
7200 cursors,
7201 visible_cursors,
7202 selections,
7203 inline_completion_popover,
7204 diff_hunk_controls: hunk_controls,
7205 mouse_context_menu,
7206 test_indicators,
7207 code_actions_indicator,
7208 crease_toggles,
7209 crease_trailers,
7210 tab_invisible,
7211 space_invisible,
7212 sticky_buffer_header,
7213 }
7214 })
7215 })
7216 })
7217 }
7218
7219 fn paint(
7220 &mut self,
7221 _: Option<&GlobalElementId>,
7222 bounds: Bounds<gpui::Pixels>,
7223 _: &mut Self::RequestLayoutState,
7224 layout: &mut Self::PrepaintState,
7225 window: &mut Window,
7226 cx: &mut App,
7227 ) {
7228 let focus_handle = self.editor.focus_handle(cx);
7229 let key_context = self
7230 .editor
7231 .update(cx, |editor, cx| editor.key_context(window, cx));
7232
7233 window.set_key_context(key_context);
7234 window.handle_input(
7235 &focus_handle,
7236 ElementInputHandler::new(bounds, self.editor.clone()),
7237 cx,
7238 );
7239 self.register_actions(window, cx);
7240 self.register_key_listeners(window, cx, layout);
7241
7242 let text_style = TextStyleRefinement {
7243 font_size: Some(self.style.text.font_size),
7244 line_height: Some(self.style.text.line_height),
7245 ..Default::default()
7246 };
7247 let rem_size = self.rem_size(cx);
7248 window.with_rem_size(rem_size, |window| {
7249 window.with_text_style(Some(text_style), |window| {
7250 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7251 self.paint_mouse_listeners(layout, window, cx);
7252 self.paint_background(layout, window, cx);
7253 self.paint_indent_guides(layout, window, cx);
7254
7255 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7256 self.paint_blamed_display_rows(layout, window, cx);
7257 self.paint_line_numbers(layout, window, cx);
7258 }
7259
7260 self.paint_text(layout, window, cx);
7261
7262 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7263 self.paint_gutter_highlights(layout, window, cx);
7264 self.paint_gutter_indicators(layout, window, cx);
7265 }
7266
7267 if !layout.blocks.is_empty() {
7268 window.with_element_namespace("blocks", |window| {
7269 self.paint_blocks(layout, window, cx);
7270 });
7271 }
7272
7273 window.with_element_namespace("blocks", |window| {
7274 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7275 sticky_header.paint(window, cx)
7276 }
7277 });
7278
7279 self.paint_scrollbars(layout, window, cx);
7280 self.paint_inline_completion_popover(layout, window, cx);
7281 self.paint_mouse_context_menu(layout, window, cx);
7282 });
7283 })
7284 })
7285 }
7286}
7287
7288pub(super) fn gutter_bounds(
7289 editor_bounds: Bounds<Pixels>,
7290 gutter_dimensions: GutterDimensions,
7291) -> Bounds<Pixels> {
7292 Bounds {
7293 origin: editor_bounds.origin,
7294 size: size(gutter_dimensions.width, editor_bounds.size.height),
7295 }
7296}
7297
7298struct ScrollbarRangeData {
7299 scrollbar_bounds: Bounds<Pixels>,
7300 scroll_range: Bounds<Pixels>,
7301 letter_size: Size<Pixels>,
7302}
7303
7304impl ScrollbarRangeData {
7305 pub fn new(
7306 scrollbar_bounds: Bounds<Pixels>,
7307 letter_size: Size<Pixels>,
7308 snapshot: &EditorSnapshot,
7309 longest_line_width: Pixels,
7310 longest_line_blame_width: Pixels,
7311 style: &EditorStyle,
7312
7313 cx: &mut App,
7314 ) -> ScrollbarRangeData {
7315 // TODO: Simplify this function down, it requires a lot of parameters
7316 let max_row = snapshot.max_point().row();
7317 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7318
7319 let scrollbar_width = style.scrollbar_width;
7320
7321 let settings = EditorSettings::get_global(cx);
7322 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7323 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7324 ScrollBeyondLastLine::Off => px(1.),
7325 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7326 };
7327
7328 let overscroll = size(
7329 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7330 letter_size.height * scroll_beyond_last_line,
7331 );
7332
7333 let scroll_range = Bounds {
7334 origin: scrollbar_bounds.origin,
7335 size: text_bounds_size + overscroll,
7336 };
7337
7338 ScrollbarRangeData {
7339 scrollbar_bounds,
7340 scroll_range,
7341 letter_size,
7342 }
7343 }
7344}
7345
7346impl IntoElement for EditorElement {
7347 type Element = Self;
7348
7349 fn into_element(self) -> Self::Element {
7350 self
7351 }
7352}
7353
7354pub struct EditorLayout {
7355 position_map: Rc<PositionMap>,
7356 hitbox: Hitbox,
7357 text_hitbox: Hitbox,
7358 gutter_hitbox: Hitbox,
7359 content_origin: gpui::Point<Pixels>,
7360 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7361 mode: EditorMode,
7362 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7363 indent_guides: Option<Vec<IndentGuideLayout>>,
7364 visible_display_row_range: Range<DisplayRow>,
7365 active_rows: BTreeMap<DisplayRow, bool>,
7366 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7367 line_elements: SmallVec<[AnyElement; 1]>,
7368 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7369 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7370 blamed_display_rows: Option<Vec<AnyElement>>,
7371 inline_blame: Option<AnyElement>,
7372 blocks: Vec<BlockLayout>,
7373 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7374 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7375 redacted_ranges: Vec<Range<DisplayPoint>>,
7376 cursors: Vec<(DisplayPoint, Hsla)>,
7377 visible_cursors: Vec<CursorLayout>,
7378 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7379 code_actions_indicator: Option<AnyElement>,
7380 test_indicators: Vec<AnyElement>,
7381 crease_toggles: Vec<Option<AnyElement>>,
7382 diff_hunk_controls: Vec<AnyElement>,
7383 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7384 inline_completion_popover: Option<AnyElement>,
7385 mouse_context_menu: Option<AnyElement>,
7386 tab_invisible: ShapedLine,
7387 space_invisible: ShapedLine,
7388 sticky_buffer_header: Option<AnyElement>,
7389}
7390
7391impl EditorLayout {
7392 fn line_end_overshoot(&self) -> Pixels {
7393 0.15 * self.position_map.line_height
7394 }
7395}
7396
7397struct LineNumberLayout {
7398 shaped_line: ShapedLine,
7399 hitbox: Option<Hitbox>,
7400 display_row: DisplayRow,
7401}
7402
7403struct ColoredRange<T> {
7404 start: T,
7405 end: T,
7406 color: Hsla,
7407}
7408
7409#[derive(Clone)]
7410struct ScrollbarLayout {
7411 hitbox: Hitbox,
7412 visible_range: Range<f32>,
7413 visible: bool,
7414 text_unit_size: Pixels,
7415 thumb_size: Pixels,
7416 axis: Axis,
7417}
7418
7419impl ScrollbarLayout {
7420 const BORDER_WIDTH: Pixels = px(1.0);
7421 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7422 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7423 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7424
7425 fn thumb_bounds(&self) -> Bounds<Pixels> {
7426 match self.axis {
7427 Axis::Vertical => {
7428 let thumb_top = self.y_for_row(self.visible_range.start);
7429 let thumb_bottom = thumb_top + self.thumb_size;
7430 Bounds::from_corners(
7431 point(self.hitbox.left(), thumb_top),
7432 point(self.hitbox.right(), thumb_bottom),
7433 )
7434 }
7435 Axis::Horizontal => {
7436 let thumb_left =
7437 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7438 let thumb_right = thumb_left + self.thumb_size;
7439 Bounds::from_corners(
7440 point(thumb_left, self.hitbox.top()),
7441 point(thumb_right, self.hitbox.bottom()),
7442 )
7443 }
7444 }
7445 }
7446
7447 fn y_for_row(&self, row: f32) -> Pixels {
7448 self.hitbox.top() + row * self.text_unit_size
7449 }
7450
7451 fn marker_quads_for_ranges(
7452 &self,
7453 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7454 column: Option<usize>,
7455 ) -> Vec<PaintQuad> {
7456 struct MinMax {
7457 min: Pixels,
7458 max: Pixels,
7459 }
7460 let (x_range, height_limit) = if let Some(column) = column {
7461 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7462 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7463 let end = start + column_width;
7464 (
7465 Range { start, end },
7466 MinMax {
7467 min: Self::MIN_MARKER_HEIGHT,
7468 max: px(f32::MAX),
7469 },
7470 )
7471 } else {
7472 (
7473 Range {
7474 start: Self::BORDER_WIDTH,
7475 end: self.hitbox.size.width,
7476 },
7477 MinMax {
7478 min: Self::LINE_MARKER_HEIGHT,
7479 max: Self::LINE_MARKER_HEIGHT,
7480 },
7481 )
7482 };
7483
7484 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7485 let mut pixel_ranges = row_ranges
7486 .into_iter()
7487 .map(|range| {
7488 let start_y = row_to_y(range.start);
7489 let end_y = row_to_y(range.end)
7490 + self
7491 .text_unit_size
7492 .max(height_limit.min)
7493 .min(height_limit.max);
7494 ColoredRange {
7495 start: start_y,
7496 end: end_y,
7497 color: range.color,
7498 }
7499 })
7500 .peekable();
7501
7502 let mut quads = Vec::new();
7503 while let Some(mut pixel_range) = pixel_ranges.next() {
7504 while let Some(next_pixel_range) = pixel_ranges.peek() {
7505 if pixel_range.end >= next_pixel_range.start - px(1.0)
7506 && pixel_range.color == next_pixel_range.color
7507 {
7508 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7509 pixel_ranges.next();
7510 } else {
7511 break;
7512 }
7513 }
7514
7515 let bounds = Bounds::from_corners(
7516 point(x_range.start, pixel_range.start),
7517 point(x_range.end, pixel_range.end),
7518 );
7519 quads.push(quad(
7520 bounds,
7521 Corners::default(),
7522 pixel_range.color,
7523 Edges::default(),
7524 Hsla::transparent_black(),
7525 ));
7526 }
7527
7528 quads
7529 }
7530}
7531
7532struct CreaseTrailerLayout {
7533 element: AnyElement,
7534 bounds: Bounds<Pixels>,
7535}
7536
7537struct PositionMap {
7538 size: Size<Pixels>,
7539 line_height: Pixels,
7540 scroll_pixel_position: gpui::Point<Pixels>,
7541 scroll_max: gpui::Point<f32>,
7542 em_width: Pixels,
7543 em_advance: Pixels,
7544 line_layouts: Vec<LineWithInvisibles>,
7545 snapshot: EditorSnapshot,
7546}
7547
7548#[derive(Debug, Copy, Clone)]
7549pub struct PointForPosition {
7550 pub previous_valid: DisplayPoint,
7551 pub next_valid: DisplayPoint,
7552 pub exact_unclipped: DisplayPoint,
7553 pub column_overshoot_after_line_end: u32,
7554}
7555
7556impl PointForPosition {
7557 pub fn as_valid(&self) -> Option<DisplayPoint> {
7558 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7559 Some(self.previous_valid)
7560 } else {
7561 None
7562 }
7563 }
7564}
7565
7566impl PositionMap {
7567 fn point_for_position(
7568 &self,
7569 text_bounds: Bounds<Pixels>,
7570 position: gpui::Point<Pixels>,
7571 ) -> PointForPosition {
7572 let scroll_position = self.snapshot.scroll_position();
7573 let position = position - text_bounds.origin;
7574 let y = position.y.max(px(0.)).min(self.size.height);
7575 let x = position.x + (scroll_position.x * self.em_width);
7576 let row = ((y / self.line_height) + scroll_position.y) as u32;
7577
7578 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7579 .line_layouts
7580 .get(row as usize - scroll_position.y as usize)
7581 {
7582 if let Some(ix) = line.index_for_x(x) {
7583 (ix as u32, px(0.))
7584 } else {
7585 (line.len as u32, px(0.).max(x - line.width))
7586 }
7587 } else {
7588 (0, x)
7589 };
7590
7591 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7592 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7593 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7594
7595 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7596 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7597 PointForPosition {
7598 previous_valid,
7599 next_valid,
7600 exact_unclipped,
7601 column_overshoot_after_line_end,
7602 }
7603 }
7604}
7605
7606struct BlockLayout {
7607 id: BlockId,
7608 row: Option<DisplayRow>,
7609 element: AnyElement,
7610 available_space: Size<AvailableSpace>,
7611 style: BlockStyle,
7612}
7613
7614fn layout_line(
7615 row: DisplayRow,
7616 snapshot: &EditorSnapshot,
7617 style: &EditorStyle,
7618 text_width: Pixels,
7619 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7620 window: &mut Window,
7621 cx: &mut App,
7622) -> LineWithInvisibles {
7623 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7624 LineWithInvisibles::from_chunks(
7625 chunks,
7626 &style,
7627 MAX_LINE_LEN,
7628 1,
7629 snapshot.mode,
7630 text_width,
7631 is_row_soft_wrapped,
7632 window,
7633 cx,
7634 )
7635 .pop()
7636 .unwrap()
7637}
7638
7639#[derive(Debug)]
7640pub struct IndentGuideLayout {
7641 origin: gpui::Point<Pixels>,
7642 length: Pixels,
7643 single_indent_width: Pixels,
7644 depth: u32,
7645 active: bool,
7646 settings: IndentGuideSettings,
7647}
7648
7649pub struct CursorLayout {
7650 origin: gpui::Point<Pixels>,
7651 block_width: Pixels,
7652 line_height: Pixels,
7653 color: Hsla,
7654 shape: CursorShape,
7655 block_text: Option<ShapedLine>,
7656 cursor_name: Option<AnyElement>,
7657}
7658
7659#[derive(Debug)]
7660pub struct CursorName {
7661 string: SharedString,
7662 color: Hsla,
7663 is_top_row: bool,
7664}
7665
7666impl CursorLayout {
7667 pub fn new(
7668 origin: gpui::Point<Pixels>,
7669 block_width: Pixels,
7670 line_height: Pixels,
7671 color: Hsla,
7672 shape: CursorShape,
7673 block_text: Option<ShapedLine>,
7674 ) -> CursorLayout {
7675 CursorLayout {
7676 origin,
7677 block_width,
7678 line_height,
7679 color,
7680 shape,
7681 block_text,
7682 cursor_name: None,
7683 }
7684 }
7685
7686 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7687 Bounds {
7688 origin: self.origin + origin,
7689 size: size(self.block_width, self.line_height),
7690 }
7691 }
7692
7693 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7694 match self.shape {
7695 CursorShape::Bar => Bounds {
7696 origin: self.origin + origin,
7697 size: size(px(2.0), self.line_height),
7698 },
7699 CursorShape::Block | CursorShape::Hollow => Bounds {
7700 origin: self.origin + origin,
7701 size: size(self.block_width, self.line_height),
7702 },
7703 CursorShape::Underline => Bounds {
7704 origin: self.origin
7705 + origin
7706 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7707 size: size(self.block_width, px(2.0)),
7708 },
7709 }
7710 }
7711
7712 pub fn layout(
7713 &mut self,
7714 origin: gpui::Point<Pixels>,
7715 cursor_name: Option<CursorName>,
7716 window: &mut Window,
7717 cx: &mut App,
7718 ) {
7719 if let Some(cursor_name) = cursor_name {
7720 let bounds = self.bounds(origin);
7721 let text_size = self.line_height / 1.5;
7722
7723 let name_origin = if cursor_name.is_top_row {
7724 point(bounds.right() - px(1.), bounds.top())
7725 } else {
7726 match self.shape {
7727 CursorShape::Bar => point(
7728 bounds.right() - px(2.),
7729 bounds.top() - text_size / 2. - px(1.),
7730 ),
7731 _ => point(
7732 bounds.right() - px(1.),
7733 bounds.top() - text_size / 2. - px(1.),
7734 ),
7735 }
7736 };
7737 let mut name_element = div()
7738 .bg(self.color)
7739 .text_size(text_size)
7740 .px_0p5()
7741 .line_height(text_size + px(2.))
7742 .text_color(cursor_name.color)
7743 .child(cursor_name.string.clone())
7744 .into_any_element();
7745
7746 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
7747
7748 self.cursor_name = Some(name_element);
7749 }
7750 }
7751
7752 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
7753 let bounds = self.bounds(origin);
7754
7755 //Draw background or border quad
7756 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7757 outline(bounds, self.color)
7758 } else {
7759 fill(bounds, self.color)
7760 };
7761
7762 if let Some(name) = &mut self.cursor_name {
7763 name.paint(window, cx);
7764 }
7765
7766 window.paint_quad(cursor);
7767
7768 if let Some(block_text) = &self.block_text {
7769 block_text
7770 .paint(self.origin + origin, self.line_height, window, cx)
7771 .log_err();
7772 }
7773 }
7774
7775 pub fn shape(&self) -> CursorShape {
7776 self.shape
7777 }
7778}
7779
7780#[derive(Debug)]
7781pub struct HighlightedRange {
7782 pub start_y: Pixels,
7783 pub line_height: Pixels,
7784 pub lines: Vec<HighlightedRangeLine>,
7785 pub color: Hsla,
7786 pub corner_radius: Pixels,
7787}
7788
7789#[derive(Debug)]
7790pub struct HighlightedRangeLine {
7791 pub start_x: Pixels,
7792 pub end_x: Pixels,
7793}
7794
7795impl HighlightedRange {
7796 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
7797 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
7798 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
7799 self.paint_lines(
7800 self.start_y + self.line_height,
7801 &self.lines[1..],
7802 bounds,
7803 window,
7804 );
7805 } else {
7806 self.paint_lines(self.start_y, &self.lines, bounds, window);
7807 }
7808 }
7809
7810 fn paint_lines(
7811 &self,
7812 start_y: Pixels,
7813 lines: &[HighlightedRangeLine],
7814 _bounds: Bounds<Pixels>,
7815 window: &mut Window,
7816 ) {
7817 if lines.is_empty() {
7818 return;
7819 }
7820
7821 let first_line = lines.first().unwrap();
7822 let last_line = lines.last().unwrap();
7823
7824 let first_top_left = point(first_line.start_x, start_y);
7825 let first_top_right = point(first_line.end_x, start_y);
7826
7827 let curve_height = point(Pixels::ZERO, self.corner_radius);
7828 let curve_width = |start_x: Pixels, end_x: Pixels| {
7829 let max = (end_x - start_x) / 2.;
7830 let width = if max < self.corner_radius {
7831 max
7832 } else {
7833 self.corner_radius
7834 };
7835
7836 point(width, Pixels::ZERO)
7837 };
7838
7839 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
7840 let mut path = gpui::Path::new(first_top_right - top_curve_width);
7841 path.curve_to(first_top_right + curve_height, first_top_right);
7842
7843 let mut iter = lines.iter().enumerate().peekable();
7844 while let Some((ix, line)) = iter.next() {
7845 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
7846
7847 if let Some((_, next_line)) = iter.peek() {
7848 let next_top_right = point(next_line.end_x, bottom_right.y);
7849
7850 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
7851 Ordering::Equal => {
7852 path.line_to(bottom_right);
7853 }
7854 Ordering::Less => {
7855 let curve_width = curve_width(next_top_right.x, bottom_right.x);
7856 path.line_to(bottom_right - curve_height);
7857 if self.corner_radius > Pixels::ZERO {
7858 path.curve_to(bottom_right - curve_width, bottom_right);
7859 }
7860 path.line_to(next_top_right + curve_width);
7861 if self.corner_radius > Pixels::ZERO {
7862 path.curve_to(next_top_right + curve_height, next_top_right);
7863 }
7864 }
7865 Ordering::Greater => {
7866 let curve_width = curve_width(bottom_right.x, next_top_right.x);
7867 path.line_to(bottom_right - curve_height);
7868 if self.corner_radius > Pixels::ZERO {
7869 path.curve_to(bottom_right + curve_width, bottom_right);
7870 }
7871 path.line_to(next_top_right - curve_width);
7872 if self.corner_radius > Pixels::ZERO {
7873 path.curve_to(next_top_right + curve_height, next_top_right);
7874 }
7875 }
7876 }
7877 } else {
7878 let curve_width = curve_width(line.start_x, line.end_x);
7879 path.line_to(bottom_right - curve_height);
7880 if self.corner_radius > Pixels::ZERO {
7881 path.curve_to(bottom_right - curve_width, bottom_right);
7882 }
7883
7884 let bottom_left = point(line.start_x, bottom_right.y);
7885 path.line_to(bottom_left + curve_width);
7886 if self.corner_radius > Pixels::ZERO {
7887 path.curve_to(bottom_left - curve_height, bottom_left);
7888 }
7889 }
7890 }
7891
7892 if first_line.start_x > last_line.start_x {
7893 let curve_width = curve_width(last_line.start_x, first_line.start_x);
7894 let second_top_left = point(last_line.start_x, start_y + self.line_height);
7895 path.line_to(second_top_left + curve_height);
7896 if self.corner_radius > Pixels::ZERO {
7897 path.curve_to(second_top_left + curve_width, second_top_left);
7898 }
7899 let first_bottom_left = point(first_line.start_x, second_top_left.y);
7900 path.line_to(first_bottom_left - curve_width);
7901 if self.corner_radius > Pixels::ZERO {
7902 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
7903 }
7904 }
7905
7906 path.line_to(first_top_left + curve_height);
7907 if self.corner_radius > Pixels::ZERO {
7908 path.curve_to(first_top_left + top_curve_width, first_top_left);
7909 }
7910 path.line_to(first_top_right - top_curve_width);
7911
7912 window.paint_path(path, self.color);
7913 }
7914}
7915
7916pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7917 (delta.pow(1.5) / 100.0).into()
7918}
7919
7920fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7921 (delta.pow(1.2) / 300.0).into()
7922}
7923
7924pub fn register_action<T: Action>(
7925 editor: &Entity<Editor>,
7926 window: &mut Window,
7927 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
7928) {
7929 let editor = editor.clone();
7930 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
7931 let action = action.downcast_ref().unwrap();
7932 if phase == DispatchPhase::Bubble {
7933 editor.update(cx, |editor, cx| {
7934 listener(editor, action, window, cx);
7935 })
7936 }
7937 })
7938}
7939
7940fn compute_auto_height_layout(
7941 editor: &mut Editor,
7942 max_lines: usize,
7943 max_line_number_width: Pixels,
7944 known_dimensions: Size<Option<Pixels>>,
7945 available_width: AvailableSpace,
7946 window: &mut Window,
7947 cx: &mut Context<Editor>,
7948) -> Option<Size<Pixels>> {
7949 let width = known_dimensions.width.or({
7950 if let AvailableSpace::Definite(available_width) = available_width {
7951 Some(available_width)
7952 } else {
7953 None
7954 }
7955 })?;
7956 if let Some(height) = known_dimensions.height {
7957 return Some(size(width, height));
7958 }
7959
7960 let style = editor.style.as_ref().unwrap();
7961 let font_id = window.text_system().resolve_font(&style.text.font());
7962 let font_size = style.text.font_size.to_pixels(window.rem_size());
7963 let line_height = style.text.line_height_in_pixels(window.rem_size());
7964 let em_width = window
7965 .text_system()
7966 .typographic_bounds(font_id, font_size, 'm')
7967 .unwrap()
7968 .size
7969 .width;
7970 let em_advance = window
7971 .text_system()
7972 .advance(font_id, font_size, 'm')
7973 .unwrap()
7974 .width;
7975
7976 let mut snapshot = editor.snapshot(window, cx);
7977 let gutter_dimensions = snapshot.gutter_dimensions(
7978 font_id,
7979 font_size,
7980 em_width,
7981 em_advance,
7982 max_line_number_width,
7983 cx,
7984 );
7985
7986 editor.gutter_dimensions = gutter_dimensions;
7987 let text_width = width - gutter_dimensions.width;
7988 let overscroll = size(em_width, px(0.));
7989
7990 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
7991 if editor.set_wrap_width(Some(editor_width), cx) {
7992 snapshot = editor.snapshot(window, cx);
7993 }
7994
7995 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
7996 let height = scroll_height
7997 .max(line_height)
7998 .min(line_height * max_lines as f32);
7999
8000 Some(size(width, height))
8001}
8002
8003#[cfg(test)]
8004mod tests {
8005 use super::*;
8006 use crate::{
8007 display_map::{BlockPlacement, BlockProperties},
8008 editor_tests::{init_test, update_test_language_settings},
8009 Editor, MultiBuffer,
8010 };
8011 use gpui::{TestAppContext, VisualTestContext};
8012 use language::language_settings;
8013 use log::info;
8014 use similar::DiffableStr;
8015 use std::num::NonZeroU32;
8016 use util::test::sample_text;
8017
8018 #[gpui::test]
8019 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8020 init_test(cx, |_| {});
8021 let window = cx.add_window(|window, cx| {
8022 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8023 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8024 });
8025
8026 let editor = window.root(cx).unwrap();
8027 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8028 let line_height = window
8029 .update(cx, |_, window, _| {
8030 style.text.line_height_in_pixels(window.rem_size())
8031 })
8032 .unwrap();
8033 let element = EditorElement::new(&editor, style);
8034 let snapshot = window
8035 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8036 .unwrap();
8037
8038 let layouts = cx
8039 .update_window(*window, |_, window, cx| {
8040 element.layout_line_numbers(
8041 None,
8042 GutterDimensions {
8043 left_padding: Pixels::ZERO,
8044 right_padding: Pixels::ZERO,
8045 width: px(30.0),
8046 margin: Pixels::ZERO,
8047 git_blame_entries_width: None,
8048 },
8049 line_height,
8050 gpui::Point::default(),
8051 DisplayRow(0)..DisplayRow(6),
8052 &(0..6)
8053 .map(|row| RowInfo {
8054 buffer_row: Some(row),
8055 ..Default::default()
8056 })
8057 .collect::<Vec<_>>(),
8058 Some(DisplayPoint::new(DisplayRow(0), 0)),
8059 &snapshot,
8060 window,
8061 cx,
8062 )
8063 })
8064 .unwrap();
8065 assert_eq!(layouts.len(), 6);
8066
8067 let relative_rows = window
8068 .update(cx, |editor, window, cx| {
8069 let snapshot = editor.snapshot(window, cx);
8070 element.calculate_relative_line_numbers(
8071 &snapshot,
8072 &(DisplayRow(0)..DisplayRow(6)),
8073 Some(DisplayRow(3)),
8074 )
8075 })
8076 .unwrap();
8077 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8078 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8079 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8080 // current line has no relative number
8081 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8082 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8083
8084 // works if cursor is before screen
8085 let relative_rows = window
8086 .update(cx, |editor, window, cx| {
8087 let snapshot = editor.snapshot(window, cx);
8088 element.calculate_relative_line_numbers(
8089 &snapshot,
8090 &(DisplayRow(3)..DisplayRow(6)),
8091 Some(DisplayRow(1)),
8092 )
8093 })
8094 .unwrap();
8095 assert_eq!(relative_rows.len(), 3);
8096 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8097 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8098 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8099
8100 // works if cursor is after screen
8101 let relative_rows = window
8102 .update(cx, |editor, window, cx| {
8103 let snapshot = editor.snapshot(window, cx);
8104 element.calculate_relative_line_numbers(
8105 &snapshot,
8106 &(DisplayRow(0)..DisplayRow(3)),
8107 Some(DisplayRow(6)),
8108 )
8109 })
8110 .unwrap();
8111 assert_eq!(relative_rows.len(), 3);
8112 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8113 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8114 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8115 }
8116
8117 #[gpui::test]
8118 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8119 init_test(cx, |_| {});
8120
8121 let window = cx.add_window(|window, cx| {
8122 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8123 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8124 });
8125 let cx = &mut VisualTestContext::from_window(*window, cx);
8126 let editor = window.root(cx).unwrap();
8127 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8128
8129 window
8130 .update(cx, |editor, window, cx| {
8131 editor.cursor_shape = CursorShape::Block;
8132 editor.change_selections(None, window, cx, |s| {
8133 s.select_ranges([
8134 Point::new(0, 0)..Point::new(1, 0),
8135 Point::new(3, 2)..Point::new(3, 3),
8136 Point::new(5, 6)..Point::new(6, 0),
8137 ]);
8138 });
8139 })
8140 .unwrap();
8141
8142 let (_, state) = cx.draw(
8143 point(px(500.), px(500.)),
8144 size(px(500.), px(500.)),
8145 |_, _| EditorElement::new(&editor, style),
8146 );
8147
8148 assert_eq!(state.selections.len(), 1);
8149 let local_selections = &state.selections[0].1;
8150 assert_eq!(local_selections.len(), 3);
8151 // moves cursor back one line
8152 assert_eq!(
8153 local_selections[0].head,
8154 DisplayPoint::new(DisplayRow(0), 6)
8155 );
8156 assert_eq!(
8157 local_selections[0].range,
8158 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8159 );
8160
8161 // moves cursor back one column
8162 assert_eq!(
8163 local_selections[1].range,
8164 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8165 );
8166 assert_eq!(
8167 local_selections[1].head,
8168 DisplayPoint::new(DisplayRow(3), 2)
8169 );
8170
8171 // leaves cursor on the max point
8172 assert_eq!(
8173 local_selections[2].range,
8174 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8175 );
8176 assert_eq!(
8177 local_selections[2].head,
8178 DisplayPoint::new(DisplayRow(6), 0)
8179 );
8180
8181 // active lines does not include 1 (even though the range of the selection does)
8182 assert_eq!(
8183 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8184 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8185 );
8186
8187 // multi-buffer support
8188 // in DisplayPoint coordinates, this is what we're dealing with:
8189 // 0: [[file
8190 // 1: header
8191 // 2: section]]
8192 // 3: aaaaaa
8193 // 4: bbbbbb
8194 // 5: cccccc
8195 // 6:
8196 // 7: [[footer]]
8197 // 8: [[header]]
8198 // 9: ffffff
8199 // 10: gggggg
8200 // 11: hhhhhh
8201 // 12:
8202 // 13: [[footer]]
8203 // 14: [[file
8204 // 15: header
8205 // 16: section]]
8206 // 17: bbbbbb
8207 // 18: cccccc
8208 // 19: dddddd
8209 // 20: [[footer]]
8210 let window = cx.add_window(|window, cx| {
8211 let buffer = MultiBuffer::build_multi(
8212 [
8213 (
8214 &(sample_text(8, 6, 'a') + "\n"),
8215 vec![
8216 Point::new(0, 0)..Point::new(3, 0),
8217 Point::new(4, 0)..Point::new(7, 0),
8218 ],
8219 ),
8220 (
8221 &(sample_text(8, 6, 'a') + "\n"),
8222 vec![Point::new(1, 0)..Point::new(3, 0)],
8223 ),
8224 ],
8225 cx,
8226 );
8227 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8228 });
8229 let editor = window.root(cx).unwrap();
8230 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8231 let _state = window.update(cx, |editor, window, cx| {
8232 editor.cursor_shape = CursorShape::Block;
8233 editor.change_selections(None, window, cx, |s| {
8234 s.select_display_ranges([
8235 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8236 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8237 ]);
8238 });
8239 });
8240
8241 let (_, state) = cx.draw(
8242 point(px(500.), px(500.)),
8243 size(px(500.), px(500.)),
8244 |_, _| EditorElement::new(&editor, style),
8245 );
8246 assert_eq!(state.selections.len(), 1);
8247 let local_selections = &state.selections[0].1;
8248 assert_eq!(local_selections.len(), 2);
8249
8250 // moves cursor on excerpt boundary back a line
8251 // and doesn't allow selection to bleed through
8252 assert_eq!(
8253 local_selections[0].range,
8254 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8255 );
8256 assert_eq!(
8257 local_selections[0].head,
8258 DisplayPoint::new(DisplayRow(6), 0)
8259 );
8260 // moves cursor on buffer boundary back two lines
8261 // and doesn't allow selection to bleed through
8262 assert_eq!(
8263 local_selections[1].range,
8264 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8265 );
8266 assert_eq!(
8267 local_selections[1].head,
8268 DisplayPoint::new(DisplayRow(12), 0)
8269 );
8270 }
8271
8272 #[gpui::test]
8273 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8274 init_test(cx, |_| {});
8275
8276 let window = cx.add_window(|window, cx| {
8277 let buffer = MultiBuffer::build_simple("", cx);
8278 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8279 });
8280 let cx = &mut VisualTestContext::from_window(*window, cx);
8281 let editor = window.root(cx).unwrap();
8282 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8283 window
8284 .update(cx, |editor, window, cx| {
8285 editor.set_placeholder_text("hello", cx);
8286 editor.insert_blocks(
8287 [BlockProperties {
8288 style: BlockStyle::Fixed,
8289 placement: BlockPlacement::Above(Anchor::min()),
8290 height: 3,
8291 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8292 priority: 0,
8293 }],
8294 None,
8295 cx,
8296 );
8297
8298 // Blur the editor so that it displays placeholder text.
8299 window.blur();
8300 })
8301 .unwrap();
8302
8303 let (_, state) = cx.draw(
8304 point(px(500.), px(500.)),
8305 size(px(500.), px(500.)),
8306 |_, _| EditorElement::new(&editor, style),
8307 );
8308 assert_eq!(state.position_map.line_layouts.len(), 4);
8309 assert_eq!(state.line_numbers.len(), 1);
8310 assert_eq!(
8311 state
8312 .line_numbers
8313 .get(&MultiBufferRow(0))
8314 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8315 Some("1")
8316 );
8317 }
8318
8319 #[gpui::test]
8320 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8321 const TAB_SIZE: u32 = 4;
8322
8323 let input_text = "\t \t|\t| a b";
8324 let expected_invisibles = vec![
8325 Invisible::Tab {
8326 line_start_offset: 0,
8327 line_end_offset: TAB_SIZE as usize,
8328 },
8329 Invisible::Whitespace {
8330 line_offset: TAB_SIZE as usize,
8331 },
8332 Invisible::Tab {
8333 line_start_offset: TAB_SIZE as usize + 1,
8334 line_end_offset: TAB_SIZE as usize * 2,
8335 },
8336 Invisible::Tab {
8337 line_start_offset: TAB_SIZE as usize * 2 + 1,
8338 line_end_offset: TAB_SIZE as usize * 3,
8339 },
8340 Invisible::Whitespace {
8341 line_offset: TAB_SIZE as usize * 3 + 1,
8342 },
8343 Invisible::Whitespace {
8344 line_offset: TAB_SIZE as usize * 3 + 3,
8345 },
8346 ];
8347 assert_eq!(
8348 expected_invisibles.len(),
8349 input_text
8350 .chars()
8351 .filter(|initial_char| initial_char.is_whitespace())
8352 .count(),
8353 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8354 );
8355
8356 for show_line_numbers in [true, false] {
8357 init_test(cx, |s| {
8358 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8359 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8360 });
8361
8362 let actual_invisibles = collect_invisibles_from_new_editor(
8363 cx,
8364 EditorMode::Full,
8365 input_text,
8366 px(500.0),
8367 show_line_numbers,
8368 );
8369
8370 assert_eq!(expected_invisibles, actual_invisibles);
8371 }
8372 }
8373
8374 #[gpui::test]
8375 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8376 init_test(cx, |s| {
8377 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8378 s.defaults.tab_size = NonZeroU32::new(4);
8379 });
8380
8381 for editor_mode_without_invisibles in [
8382 EditorMode::SingleLine { auto_width: false },
8383 EditorMode::AutoHeight { max_lines: 100 },
8384 ] {
8385 for show_line_numbers in [true, false] {
8386 let invisibles = collect_invisibles_from_new_editor(
8387 cx,
8388 editor_mode_without_invisibles,
8389 "\t\t\t| | a b",
8390 px(500.0),
8391 show_line_numbers,
8392 );
8393 assert!(invisibles.is_empty(),
8394 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8395 }
8396 }
8397 }
8398
8399 #[gpui::test]
8400 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8401 let tab_size = 4;
8402 let input_text = "a\tbcd ".repeat(9);
8403 let repeated_invisibles = [
8404 Invisible::Tab {
8405 line_start_offset: 1,
8406 line_end_offset: tab_size as usize,
8407 },
8408 Invisible::Whitespace {
8409 line_offset: tab_size as usize + 3,
8410 },
8411 Invisible::Whitespace {
8412 line_offset: tab_size as usize + 4,
8413 },
8414 Invisible::Whitespace {
8415 line_offset: tab_size as usize + 5,
8416 },
8417 Invisible::Whitespace {
8418 line_offset: tab_size as usize + 6,
8419 },
8420 Invisible::Whitespace {
8421 line_offset: tab_size as usize + 7,
8422 },
8423 ];
8424 let expected_invisibles = std::iter::once(repeated_invisibles)
8425 .cycle()
8426 .take(9)
8427 .flatten()
8428 .collect::<Vec<_>>();
8429 assert_eq!(
8430 expected_invisibles.len(),
8431 input_text
8432 .chars()
8433 .filter(|initial_char| initial_char.is_whitespace())
8434 .count(),
8435 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8436 );
8437 info!("Expected invisibles: {expected_invisibles:?}");
8438
8439 init_test(cx, |_| {});
8440
8441 // Put the same string with repeating whitespace pattern into editors of various size,
8442 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8443 let resize_step = 10.0;
8444 let mut editor_width = 200.0;
8445 while editor_width <= 1000.0 {
8446 for show_line_numbers in [true, false] {
8447 update_test_language_settings(cx, |s| {
8448 s.defaults.tab_size = NonZeroU32::new(tab_size);
8449 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8450 s.defaults.preferred_line_length = Some(editor_width as u32);
8451 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8452 });
8453
8454 let actual_invisibles = collect_invisibles_from_new_editor(
8455 cx,
8456 EditorMode::Full,
8457 &input_text,
8458 px(editor_width),
8459 show_line_numbers,
8460 );
8461
8462 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8463 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8464 let mut i = 0;
8465 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8466 i = actual_index;
8467 match expected_invisibles.get(i) {
8468 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8469 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8470 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8471 _ => {
8472 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8473 }
8474 },
8475 None => {
8476 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8477 }
8478 }
8479 }
8480 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8481 assert!(
8482 missing_expected_invisibles.is_empty(),
8483 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8484 );
8485
8486 editor_width += resize_step;
8487 }
8488 }
8489 }
8490
8491 fn collect_invisibles_from_new_editor(
8492 cx: &mut TestAppContext,
8493 editor_mode: EditorMode,
8494 input_text: &str,
8495 editor_width: Pixels,
8496 show_line_numbers: bool,
8497 ) -> Vec<Invisible> {
8498 info!(
8499 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8500 editor_width.0
8501 );
8502 let window = cx.add_window(|window, cx| {
8503 let buffer = MultiBuffer::build_simple(input_text, cx);
8504 Editor::new(editor_mode, buffer, None, true, window, cx)
8505 });
8506 let cx = &mut VisualTestContext::from_window(*window, cx);
8507 let editor = window.root(cx).unwrap();
8508
8509 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8510 window
8511 .update(cx, |editor, _, cx| {
8512 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8513 editor.set_wrap_width(Some(editor_width), cx);
8514 editor.set_show_line_numbers(show_line_numbers, cx);
8515 })
8516 .unwrap();
8517 let (_, state) = cx.draw(
8518 point(px(500.), px(500.)),
8519 size(px(500.), px(500.)),
8520 |_, _| EditorElement::new(&editor, style),
8521 );
8522 state
8523 .position_map
8524 .line_layouts
8525 .iter()
8526 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8527 .cloned()
8528 .collect()
8529 }
8530}
8531
8532fn diff_hunk_controls(
8533 row: u32,
8534 hunk_range: Range<Anchor>,
8535 line_height: Pixels,
8536 editor: &Entity<Editor>,
8537 cx: &mut App,
8538) -> AnyElement {
8539 h_flex()
8540 .h(line_height)
8541 .mr_1()
8542 .gap_1()
8543 .px_1()
8544 .pb_1()
8545 .border_b_1()
8546 .border_color(cx.theme().colors().border_variant)
8547 .rounded_b_lg()
8548 .bg(cx.theme().colors().editor_background)
8549 .gap_1()
8550 .child(
8551 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8552 .shape(IconButtonShape::Square)
8553 .icon_size(IconSize::Small)
8554 // .disabled(!has_multiple_hunks)
8555 .tooltip({
8556 let focus_handle = editor.focus_handle(cx);
8557 move |window, cx| {
8558 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8559 }
8560 })
8561 .on_click({
8562 let editor = editor.clone();
8563 move |_event, window, cx| {
8564 editor.update(cx, |editor, cx| {
8565 let snapshot = editor.snapshot(window, cx);
8566 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8567 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8568 editor.expand_selected_diff_hunks(cx);
8569 });
8570 }
8571 }),
8572 )
8573 .child(
8574 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8575 .shape(IconButtonShape::Square)
8576 .icon_size(IconSize::Small)
8577 // .disabled(!has_multiple_hunks)
8578 .tooltip({
8579 let focus_handle = editor.focus_handle(cx);
8580 move |window, cx| {
8581 Tooltip::for_action_in(
8582 "Previous Hunk",
8583 &GoToPrevHunk,
8584 &focus_handle,
8585 window,
8586 cx,
8587 )
8588 }
8589 })
8590 .on_click({
8591 let editor = editor.clone();
8592 move |_event, window, cx| {
8593 editor.update(cx, |editor, cx| {
8594 let snapshot = editor.snapshot(window, cx);
8595 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8596 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8597 editor.expand_selected_diff_hunks(cx);
8598 });
8599 }
8600 }),
8601 )
8602 .child(
8603 IconButton::new("discard", IconName::Undo)
8604 .shape(IconButtonShape::Square)
8605 .icon_size(IconSize::Small)
8606 .tooltip({
8607 let focus_handle = editor.focus_handle(cx);
8608 move |window, cx| {
8609 Tooltip::for_action_in(
8610 "Discard Hunk",
8611 &RevertSelectedHunks,
8612 &focus_handle,
8613 window,
8614 cx,
8615 )
8616 }
8617 })
8618 .on_click({
8619 let editor = editor.clone();
8620 move |_event, window, cx| {
8621 editor.update(cx, |editor, cx| {
8622 let snapshot = editor.snapshot(window, cx);
8623 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8624 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8625 });
8626 }
8627 }),
8628 )
8629 .into_any_element()
8630}