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 newest_selection_head: Option<DisplayPoint>,
3414 editor_width: Pixels,
3415 style: &EditorStyle,
3416 window: &mut Window,
3417 cx: &mut App,
3418 ) -> Option<AnyElement> {
3419 const PADDING_X: Pixels = Pixels(24.);
3420 const PADDING_Y: Pixels = Pixels(2.);
3421
3422 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3423
3424 match &active_inline_completion.completion {
3425 InlineCompletion::Move(target_position) => {
3426 let target_display_point = target_position.to_display_point(editor_snapshot);
3427 if target_display_point.row().as_f32() < scroll_top {
3428 let mut element = inline_completion_tab_indicator(
3429 "Jump to Edit",
3430 Some(IconName::ArrowUp),
3431 cx,
3432 );
3433 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3434 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3435 element.prepaint_at(text_bounds.origin + offset, window, cx);
3436 Some(element)
3437 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3438 let mut element = inline_completion_tab_indicator(
3439 "Jump to Edit",
3440 Some(IconName::ArrowDown),
3441 cx,
3442 );
3443 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3444 let offset = point(
3445 (text_bounds.size.width - size.width) / 2.,
3446 text_bounds.size.height - size.height - PADDING_Y,
3447 );
3448 element.prepaint_at(text_bounds.origin + offset, window, cx);
3449 Some(element)
3450 } else {
3451 let mut element = inline_completion_tab_indicator("Jump to Edit", None, cx);
3452
3453 let target_line_end = DisplayPoint::new(
3454 target_display_point.row(),
3455 editor_snapshot.line_len(target_display_point.row()),
3456 );
3457 let origin = self.editor.update(cx, |editor, _cx| {
3458 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3459 })?;
3460 element.prepaint_as_root(
3461 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3462 AvailableSpace::min_size(),
3463 window,
3464 cx,
3465 );
3466 Some(element)
3467 }
3468 }
3469 InlineCompletion::Edit {
3470 edits,
3471 display_mode,
3472 } => {
3473 if self.editor.read(cx).has_active_completions_menu() {
3474 return None;
3475 }
3476
3477 let edit_start = edits
3478 .first()
3479 .unwrap()
3480 .0
3481 .start
3482 .to_display_point(editor_snapshot);
3483 let edit_end = edits
3484 .last()
3485 .unwrap()
3486 .0
3487 .end
3488 .to_display_point(editor_snapshot);
3489
3490 let is_visible = visible_row_range.contains(&edit_start.row())
3491 || visible_row_range.contains(&edit_end.row());
3492 if !is_visible {
3493 return None;
3494 }
3495
3496 match display_mode {
3497 EditDisplayMode::TabAccept => {
3498 let range = &edits.first()?.0;
3499 let target_display_point = range.end.to_display_point(editor_snapshot);
3500
3501 let target_line_end = DisplayPoint::new(
3502 target_display_point.row(),
3503 editor_snapshot.line_len(target_display_point.row()),
3504 );
3505 let origin = self.editor.update(cx, |editor, _cx| {
3506 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3507 })?;
3508
3509 let mut element = inline_completion_tab_indicator("Accept", None, cx);
3510
3511 element.prepaint_as_root(
3512 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3513 AvailableSpace::min_size(),
3514 window,
3515 cx,
3516 );
3517
3518 return Some(element);
3519 }
3520 EditDisplayMode::Inline => return None,
3521 EditDisplayMode::DiffPopover => {}
3522 }
3523
3524 let crate::InlineCompletionText::Edit { text, highlights } =
3525 crate::inline_completion_edit_text(editor_snapshot, edits, false, cx)
3526 else {
3527 return None;
3528 };
3529
3530 let line_count = text.lines().count() + 1;
3531
3532 let longest_row =
3533 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3534 let longest_line_width = if visible_row_range.contains(&longest_row) {
3535 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3536 } else {
3537 layout_line(
3538 longest_row,
3539 editor_snapshot,
3540 style,
3541 editor_width,
3542 |_| false,
3543 window,
3544 cx,
3545 )
3546 .width
3547 };
3548
3549 let styled_text =
3550 gpui::StyledText::new(text.clone()).with_highlights(&style.text, highlights);
3551
3552 let mut element = div()
3553 .bg(cx.theme().colors().editor_background)
3554 .border_1()
3555 .border_color(cx.theme().colors().border)
3556 .rounded_md()
3557 .px_1()
3558 .child(styled_text)
3559 .into_any();
3560
3561 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3562 .extend(Edges {
3563 right: -Self::SCROLLBAR_WIDTH,
3564 ..Default::default()
3565 });
3566
3567 let x_after_longest =
3568 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3569
3570 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3571
3572 // Fully visible if it can be displayed within the window (allow overlapping other
3573 // panes). However, this is only allowed if the popover starts within text_bounds.
3574 let is_fully_visible = x_after_longest < text_bounds.right()
3575 && x_after_longest + element_bounds.width < viewport_bounds.right();
3576
3577 let origin = if is_fully_visible {
3578 point(
3579 x_after_longest,
3580 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3581 - scroll_pixel_position.y,
3582 )
3583 } else {
3584 // Avoid overlapping both the edited rows and the user's cursor.
3585 let target_above = DisplayRow(
3586 edit_start
3587 .row()
3588 .0
3589 .min(
3590 newest_selection_head
3591 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3592 )
3593 .saturating_sub(line_count as u32),
3594 );
3595 let mut row_target;
3596 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3597 row_target = target_above;
3598 } else {
3599 row_target = DisplayRow(
3600 edit_end.row().0.max(
3601 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3602 ) + 1,
3603 );
3604 if !visible_row_range.contains(&row_target) {
3605 // Not visible, so fallback on displaying immediately below the cursor.
3606 if let Some(cursor) = newest_selection_head {
3607 row_target = DisplayRow(cursor.row().0 + 1);
3608 } else {
3609 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3610 row_target = DisplayRow(0);
3611 }
3612 }
3613 };
3614
3615 text_bounds.origin
3616 + point(
3617 -scroll_pixel_position.x,
3618 row_target.as_f32() * line_height - scroll_pixel_position.y,
3619 )
3620 };
3621
3622 window.defer_draw(element, origin, 1);
3623
3624 // Do not return an element, since it will already be drawn due to defer_draw.
3625 None
3626 }
3627 }
3628 }
3629
3630 fn layout_mouse_context_menu(
3631 &self,
3632 editor_snapshot: &EditorSnapshot,
3633 visible_range: Range<DisplayRow>,
3634 content_origin: gpui::Point<Pixels>,
3635 window: &mut Window,
3636 cx: &mut App,
3637 ) -> Option<AnyElement> {
3638 let position = self.editor.update(cx, |editor, _cx| {
3639 let visible_start_point = editor.display_to_pixel_point(
3640 DisplayPoint::new(visible_range.start, 0),
3641 editor_snapshot,
3642 window,
3643 )?;
3644 let visible_end_point = editor.display_to_pixel_point(
3645 DisplayPoint::new(visible_range.end, 0),
3646 editor_snapshot,
3647 window,
3648 )?;
3649
3650 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3651 let (source_display_point, position) = match mouse_context_menu.position {
3652 MenuPosition::PinnedToScreen(point) => (None, point),
3653 MenuPosition::PinnedToEditor { source, offset } => {
3654 let source_display_point = source.to_display_point(editor_snapshot);
3655 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3656 let position = content_origin + source_point + offset;
3657 (Some(source_display_point), position)
3658 }
3659 };
3660
3661 let source_included = source_display_point.map_or(true, |source_display_point| {
3662 visible_range
3663 .to_inclusive()
3664 .contains(&source_display_point.row())
3665 });
3666 let position_included =
3667 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3668 if !source_included && !position_included {
3669 None
3670 } else {
3671 Some(position)
3672 }
3673 })?;
3674
3675 let mut element = self.editor.update(cx, |editor, _| {
3676 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3677 let context_menu = mouse_context_menu.context_menu.clone();
3678
3679 Some(
3680 deferred(
3681 anchored()
3682 .position(position)
3683 .child(context_menu)
3684 .anchor(Corner::TopLeft)
3685 .snap_to_window_with_margin(px(8.)),
3686 )
3687 .with_priority(1)
3688 .into_any(),
3689 )
3690 })?;
3691
3692 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3693 Some(element)
3694 }
3695
3696 #[allow(clippy::too_many_arguments)]
3697 fn layout_hover_popovers(
3698 &self,
3699 snapshot: &EditorSnapshot,
3700 hitbox: &Hitbox,
3701 text_hitbox: &Hitbox,
3702 visible_display_row_range: Range<DisplayRow>,
3703 content_origin: gpui::Point<Pixels>,
3704 scroll_pixel_position: gpui::Point<Pixels>,
3705 line_layouts: &[LineWithInvisibles],
3706 line_height: Pixels,
3707 em_width: Pixels,
3708 window: &mut Window,
3709 cx: &mut App,
3710 ) {
3711 struct MeasuredHoverPopover {
3712 element: AnyElement,
3713 size: Size<Pixels>,
3714 horizontal_offset: Pixels,
3715 }
3716
3717 let max_size = size(
3718 (120. * em_width) // Default size
3719 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3720 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3721 (16. * line_height) // Default size
3722 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3723 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3724 );
3725
3726 let hover_popovers = self.editor.update(cx, |editor, cx| {
3727 editor
3728 .hover_state
3729 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3730 });
3731 let Some((position, hover_popovers)) = hover_popovers else {
3732 return;
3733 };
3734
3735 // This is safe because we check on layout whether the required row is available
3736 let hovered_row_layout =
3737 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3738
3739 // Compute Hovered Point
3740 let x =
3741 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3742 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3743 let hovered_point = content_origin + point(x, y);
3744
3745 let mut overall_height = Pixels::ZERO;
3746 let mut measured_hover_popovers = Vec::new();
3747 for mut hover_popover in hover_popovers {
3748 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3749 let horizontal_offset =
3750 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3751
3752 overall_height += HOVER_POPOVER_GAP + size.height;
3753
3754 measured_hover_popovers.push(MeasuredHoverPopover {
3755 element: hover_popover,
3756 size,
3757 horizontal_offset,
3758 });
3759 }
3760 overall_height += HOVER_POPOVER_GAP;
3761
3762 fn draw_occluder(
3763 width: Pixels,
3764 origin: gpui::Point<Pixels>,
3765 window: &mut Window,
3766 cx: &mut App,
3767 ) {
3768 let mut occlusion = div()
3769 .size_full()
3770 .occlude()
3771 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3772 .into_any_element();
3773 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3774 window.defer_draw(occlusion, origin, 2);
3775 }
3776
3777 if hovered_point.y > overall_height {
3778 // There is enough space above. Render popovers above the hovered point
3779 let mut current_y = hovered_point.y;
3780 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3781 let size = popover.size;
3782 let popover_origin = point(
3783 hovered_point.x + popover.horizontal_offset,
3784 current_y - size.height,
3785 );
3786
3787 window.defer_draw(popover.element, popover_origin, 2);
3788 if position != itertools::Position::Last {
3789 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3790 draw_occluder(size.width, origin, window, cx);
3791 }
3792
3793 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3794 }
3795 } else {
3796 // There is not enough space above. Render popovers below the hovered point
3797 let mut current_y = hovered_point.y + line_height;
3798 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3799 let size = popover.size;
3800 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3801
3802 window.defer_draw(popover.element, popover_origin, 2);
3803 if position != itertools::Position::Last {
3804 let origin = point(popover_origin.x, popover_origin.y + size.height);
3805 draw_occluder(size.width, origin, window, cx);
3806 }
3807
3808 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3809 }
3810 }
3811 }
3812
3813 #[allow(clippy::too_many_arguments)]
3814 fn layout_diff_hunk_controls(
3815 &self,
3816 row_range: Range<DisplayRow>,
3817 row_infos: &[RowInfo],
3818 text_hitbox: &Hitbox,
3819 position_map: &PositionMap,
3820 newest_cursor_position: Option<DisplayPoint>,
3821 line_height: Pixels,
3822 scroll_pixel_position: gpui::Point<Pixels>,
3823 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3824 editor: Entity<Editor>,
3825 window: &mut Window,
3826 cx: &mut App,
3827 ) -> Vec<AnyElement> {
3828 let point_for_position =
3829 position_map.point_for_position(text_hitbox.bounds, window.mouse_position());
3830
3831 let mut controls = vec![];
3832
3833 let active_positions = [
3834 Some(point_for_position.previous_valid),
3835 newest_cursor_position,
3836 ];
3837
3838 for (hunk, _) in display_hunks {
3839 if let DisplayDiffHunk::Unfolded {
3840 display_row_range,
3841 multi_buffer_range,
3842 status,
3843 ..
3844 } = &hunk
3845 {
3846 if display_row_range.start < row_range.start
3847 || display_row_range.start >= row_range.end
3848 {
3849 continue;
3850 }
3851 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3852 if row_infos[row_ix].diff_status.is_none() {
3853 continue;
3854 }
3855 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
3856 && *status != DiffHunkStatus::Added
3857 {
3858 continue;
3859 }
3860 if active_positions
3861 .iter()
3862 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3863 {
3864 let y = display_row_range.start.as_f32() * line_height
3865 + text_hitbox.bounds.top()
3866 - scroll_pixel_position.y;
3867 let x = text_hitbox.bounds.right() - px(100.);
3868
3869 let mut element = diff_hunk_controls(
3870 display_row_range.start.0,
3871 multi_buffer_range.clone(),
3872 line_height,
3873 &editor,
3874 cx,
3875 );
3876 element.prepaint_as_root(
3877 gpui::Point::new(x, y),
3878 size(px(100.0), line_height).into(),
3879 window,
3880 cx,
3881 );
3882 controls.push(element);
3883 }
3884 }
3885 }
3886
3887 controls
3888 }
3889
3890 #[allow(clippy::too_many_arguments)]
3891 fn layout_signature_help(
3892 &self,
3893 hitbox: &Hitbox,
3894 content_origin: gpui::Point<Pixels>,
3895 scroll_pixel_position: gpui::Point<Pixels>,
3896 newest_selection_head: Option<DisplayPoint>,
3897 start_row: DisplayRow,
3898 line_layouts: &[LineWithInvisibles],
3899 line_height: Pixels,
3900 em_width: Pixels,
3901 window: &mut Window,
3902 cx: &mut App,
3903 ) {
3904 if !self.editor.focus_handle(cx).is_focused(window) {
3905 return;
3906 }
3907 let Some(newest_selection_head) = newest_selection_head else {
3908 return;
3909 };
3910 let selection_row = newest_selection_head.row();
3911 if selection_row < start_row {
3912 return;
3913 }
3914 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3915 else {
3916 return;
3917 };
3918
3919 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3920 - scroll_pixel_position.x
3921 + content_origin.x;
3922 let start_y =
3923 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3924
3925 let max_size = size(
3926 (120. * em_width) // Default size
3927 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3928 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3929 (16. * line_height) // Default size
3930 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3931 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3932 );
3933
3934 let maybe_element = self.editor.update(cx, |editor, cx| {
3935 if let Some(popover) = editor.signature_help_state.popover_mut() {
3936 let element = popover.render(
3937 &self.style,
3938 max_size,
3939 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3940 cx,
3941 );
3942 Some(element)
3943 } else {
3944 None
3945 }
3946 });
3947 if let Some(mut element) = maybe_element {
3948 let window_size = window.viewport_size();
3949 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
3950 let mut point = point(start_x, start_y - size.height);
3951
3952 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3953 if point.x + size.width >= window_size.width {
3954 point.x = window_size.width - size.width;
3955 }
3956
3957 window.defer_draw(element, point, 1)
3958 }
3959 }
3960
3961 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
3962 window.paint_layer(layout.hitbox.bounds, |window| {
3963 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3964 let gutter_bg = cx.theme().colors().editor_gutter_background;
3965 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3966 window.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3967
3968 if let EditorMode::Full = layout.mode {
3969 let mut active_rows = layout.active_rows.iter().peekable();
3970 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3971 let mut end_row = start_row.0;
3972 while active_rows
3973 .peek()
3974 .map_or(false, |(active_row, has_selection)| {
3975 active_row.0 == end_row + 1
3976 && *has_selection == contains_non_empty_selection
3977 })
3978 {
3979 active_rows.next().unwrap();
3980 end_row += 1;
3981 }
3982
3983 if !contains_non_empty_selection {
3984 let highlight_h_range =
3985 match layout.position_map.snapshot.current_line_highlight {
3986 CurrentLineHighlight::Gutter => Some(Range {
3987 start: layout.hitbox.left(),
3988 end: layout.gutter_hitbox.right(),
3989 }),
3990 CurrentLineHighlight::Line => Some(Range {
3991 start: layout.text_hitbox.bounds.left(),
3992 end: layout.text_hitbox.bounds.right(),
3993 }),
3994 CurrentLineHighlight::All => Some(Range {
3995 start: layout.hitbox.left(),
3996 end: layout.hitbox.right(),
3997 }),
3998 CurrentLineHighlight::None => None,
3999 };
4000 if let Some(range) = highlight_h_range {
4001 let active_line_bg = cx.theme().colors().editor_active_line_background;
4002 let bounds = Bounds {
4003 origin: point(
4004 range.start,
4005 layout.hitbox.origin.y
4006 + (start_row.as_f32() - scroll_top)
4007 * layout.position_map.line_height,
4008 ),
4009 size: size(
4010 range.end - range.start,
4011 layout.position_map.line_height
4012 * (end_row - start_row.0 + 1) as f32,
4013 ),
4014 };
4015 window.paint_quad(fill(bounds, active_line_bg));
4016 }
4017 }
4018 }
4019
4020 let mut paint_highlight =
4021 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4022 let origin = point(
4023 layout.hitbox.origin.x,
4024 layout.hitbox.origin.y
4025 + (highlight_row_start.as_f32() - scroll_top)
4026 * layout.position_map.line_height,
4027 );
4028 let size = size(
4029 layout.hitbox.size.width,
4030 layout.position_map.line_height
4031 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4032 );
4033 window.paint_quad(fill(Bounds { origin, size }, color));
4034 };
4035
4036 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4037 for (&new_row, &new_color) in &layout.highlighted_rows {
4038 match &mut current_paint {
4039 Some((current_color, current_range)) => {
4040 let current_color = *current_color;
4041 let new_range_started = current_color != new_color
4042 || current_range.end.next_row() != new_row;
4043 if new_range_started {
4044 paint_highlight(
4045 current_range.start,
4046 current_range.end,
4047 current_color,
4048 );
4049 current_paint = Some((new_color, new_row..new_row));
4050 continue;
4051 } else {
4052 current_range.end = current_range.end.next_row();
4053 }
4054 }
4055 None => current_paint = Some((new_color, new_row..new_row)),
4056 };
4057 }
4058 if let Some((color, range)) = current_paint {
4059 paint_highlight(range.start, range.end, color);
4060 }
4061
4062 let scroll_left =
4063 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4064
4065 for (wrap_position, active) in layout.wrap_guides.iter() {
4066 let x = (layout.text_hitbox.origin.x
4067 + *wrap_position
4068 + layout.position_map.em_width / 2.)
4069 - scroll_left;
4070
4071 let show_scrollbars = {
4072 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4073
4074 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4075 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4076 };
4077
4078 if x < layout.text_hitbox.origin.x
4079 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4080 {
4081 continue;
4082 }
4083
4084 let color = if *active {
4085 cx.theme().colors().editor_active_wrap_guide
4086 } else {
4087 cx.theme().colors().editor_wrap_guide
4088 };
4089 window.paint_quad(fill(
4090 Bounds {
4091 origin: point(x, layout.text_hitbox.origin.y),
4092 size: size(px(1.), layout.text_hitbox.size.height),
4093 },
4094 color,
4095 ));
4096 }
4097 }
4098 })
4099 }
4100
4101 fn paint_indent_guides(
4102 &mut self,
4103 layout: &mut EditorLayout,
4104 window: &mut Window,
4105 cx: &mut App,
4106 ) {
4107 let Some(indent_guides) = &layout.indent_guides else {
4108 return;
4109 };
4110
4111 let faded_color = |color: Hsla, alpha: f32| {
4112 let mut faded = color;
4113 faded.a = alpha;
4114 faded
4115 };
4116
4117 for indent_guide in indent_guides {
4118 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4119 let settings = indent_guide.settings;
4120
4121 // TODO fixed for now, expose them through themes later
4122 const INDENT_AWARE_ALPHA: f32 = 0.2;
4123 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4124 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4125 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4126
4127 let line_color = match (settings.coloring, indent_guide.active) {
4128 (IndentGuideColoring::Disabled, _) => None,
4129 (IndentGuideColoring::Fixed, false) => {
4130 Some(cx.theme().colors().editor_indent_guide)
4131 }
4132 (IndentGuideColoring::Fixed, true) => {
4133 Some(cx.theme().colors().editor_indent_guide_active)
4134 }
4135 (IndentGuideColoring::IndentAware, false) => {
4136 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4137 }
4138 (IndentGuideColoring::IndentAware, true) => {
4139 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4140 }
4141 };
4142
4143 let background_color = match (settings.background_coloring, indent_guide.active) {
4144 (IndentGuideBackgroundColoring::Disabled, _) => None,
4145 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4146 indent_accent_colors,
4147 INDENT_AWARE_BACKGROUND_ALPHA,
4148 )),
4149 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4150 indent_accent_colors,
4151 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4152 )),
4153 };
4154
4155 let requested_line_width = if indent_guide.active {
4156 settings.active_line_width
4157 } else {
4158 settings.line_width
4159 }
4160 .clamp(1, 10);
4161 let mut line_indicator_width = 0.;
4162 if let Some(color) = line_color {
4163 window.paint_quad(fill(
4164 Bounds {
4165 origin: indent_guide.origin,
4166 size: size(px(requested_line_width as f32), indent_guide.length),
4167 },
4168 color,
4169 ));
4170 line_indicator_width = requested_line_width as f32;
4171 }
4172
4173 if let Some(color) = background_color {
4174 let width = indent_guide.single_indent_width - px(line_indicator_width);
4175 window.paint_quad(fill(
4176 Bounds {
4177 origin: point(
4178 indent_guide.origin.x + px(line_indicator_width),
4179 indent_guide.origin.y,
4180 ),
4181 size: size(width, indent_guide.length),
4182 },
4183 color,
4184 ));
4185 }
4186 }
4187 }
4188
4189 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4190 let is_singleton = self.editor.read(cx).is_singleton(cx);
4191
4192 let line_height = layout.position_map.line_height;
4193 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4194
4195 for LineNumberLayout {
4196 shaped_line,
4197 hitbox,
4198 display_row,
4199 } in layout.line_numbers.values()
4200 {
4201 let Some(hitbox) = hitbox else {
4202 continue;
4203 };
4204
4205 let is_active = layout.active_rows.contains_key(&display_row);
4206
4207 let color = if is_active {
4208 cx.theme().colors().editor_active_line_number
4209 } else if !is_singleton && hitbox.is_hovered(window) {
4210 cx.theme().colors().editor_hover_line_number
4211 } else {
4212 cx.theme().colors().editor_line_number
4213 };
4214
4215 let Some(line) = self
4216 .shape_line_number(shaped_line.text.clone(), color, window)
4217 .log_err()
4218 else {
4219 continue;
4220 };
4221 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4222 continue;
4223 };
4224 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4225 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4226 if is_singleton {
4227 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4228 } else {
4229 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4230 }
4231 }
4232 }
4233
4234 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4235 if layout.display_hunks.is_empty() {
4236 return;
4237 }
4238
4239 let line_height = layout.position_map.line_height;
4240 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4241 for (hunk, hitbox) in &layout.display_hunks {
4242 let hunk_to_paint = match hunk {
4243 DisplayDiffHunk::Folded { .. } => {
4244 let hunk_bounds = Self::diff_hunk_bounds(
4245 &layout.position_map.snapshot,
4246 line_height,
4247 layout.gutter_hitbox.bounds,
4248 hunk,
4249 );
4250 Some((
4251 hunk_bounds,
4252 cx.theme().status().modified,
4253 Corners::all(px(0.)),
4254 ))
4255 }
4256 DisplayDiffHunk::Unfolded {
4257 status,
4258 display_row_range,
4259 ..
4260 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4261 DiffHunkStatus::Added => (
4262 hunk_hitbox.bounds,
4263 cx.theme().status().created,
4264 Corners::all(px(0.)),
4265 ),
4266 DiffHunkStatus::Modified => (
4267 hunk_hitbox.bounds,
4268 cx.theme().status().modified,
4269 Corners::all(px(0.)),
4270 ),
4271 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4272 hunk_hitbox.bounds,
4273 cx.theme().status().deleted,
4274 Corners::all(px(0.)),
4275 ),
4276 DiffHunkStatus::Removed => (
4277 Bounds::new(
4278 point(
4279 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4280 hunk_hitbox.origin.y,
4281 ),
4282 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4283 ),
4284 cx.theme().status().deleted,
4285 Corners::all(1. * line_height),
4286 ),
4287 }),
4288 };
4289
4290 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4291 window.paint_quad(quad(
4292 hunk_bounds,
4293 corner_radii,
4294 background_color,
4295 Edges::default(),
4296 transparent_black(),
4297 ));
4298 }
4299 }
4300 });
4301 }
4302
4303 fn diff_hunk_bounds(
4304 snapshot: &EditorSnapshot,
4305 line_height: Pixels,
4306 gutter_bounds: Bounds<Pixels>,
4307 hunk: &DisplayDiffHunk,
4308 ) -> Bounds<Pixels> {
4309 let scroll_position = snapshot.scroll_position();
4310 let scroll_top = scroll_position.y * line_height;
4311 let gutter_strip_width = (0.275 * line_height).floor();
4312
4313 match hunk {
4314 DisplayDiffHunk::Folded { display_row, .. } => {
4315 let start_y = display_row.as_f32() * line_height - scroll_top;
4316 let end_y = start_y + line_height;
4317 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4318 let highlight_size = size(gutter_strip_width, end_y - start_y);
4319 Bounds::new(highlight_origin, highlight_size)
4320 }
4321 DisplayDiffHunk::Unfolded {
4322 display_row_range,
4323 status,
4324 ..
4325 } => {
4326 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4327 let row = display_row_range.start;
4328
4329 let offset = line_height / 2.;
4330 let start_y = row.as_f32() * line_height - offset - scroll_top;
4331 let end_y = start_y + line_height;
4332
4333 let width = (0.35 * line_height).floor();
4334 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4335 let highlight_size = size(width, end_y - start_y);
4336 Bounds::new(highlight_origin, highlight_size)
4337 } else {
4338 let start_row = display_row_range.start;
4339 let end_row = display_row_range.end;
4340 // If we're in a multibuffer, row range span might include an
4341 // excerpt header, so if we were to draw the marker straight away,
4342 // the hunk might include the rows of that header.
4343 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4344 // Instead, we simply check whether the range we're dealing with includes
4345 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4346 let end_row_in_current_excerpt = snapshot
4347 .blocks_in_range(start_row..end_row)
4348 .find_map(|(start_row, block)| {
4349 if matches!(block, Block::ExcerptBoundary { .. }) {
4350 Some(start_row)
4351 } else {
4352 None
4353 }
4354 })
4355 .unwrap_or(end_row);
4356
4357 let start_y = start_row.as_f32() * line_height - scroll_top;
4358 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4359
4360 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4361 let highlight_size = size(gutter_strip_width, end_y - start_y);
4362 Bounds::new(highlight_origin, highlight_size)
4363 }
4364 }
4365 }
4366 }
4367
4368 fn paint_gutter_indicators(
4369 &self,
4370 layout: &mut EditorLayout,
4371 window: &mut Window,
4372 cx: &mut App,
4373 ) {
4374 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4375 window.with_element_namespace("crease_toggles", |window| {
4376 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4377 crease_toggle.paint(window, cx);
4378 }
4379 });
4380
4381 for test_indicator in layout.test_indicators.iter_mut() {
4382 test_indicator.paint(window, cx);
4383 }
4384
4385 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4386 indicator.paint(window, cx);
4387 }
4388 });
4389 }
4390
4391 fn paint_gutter_highlights(
4392 &self,
4393 layout: &mut EditorLayout,
4394 window: &mut Window,
4395 cx: &mut App,
4396 ) {
4397 for (_, hunk_hitbox) in &layout.display_hunks {
4398 if let Some(hunk_hitbox) = hunk_hitbox {
4399 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4400 }
4401 }
4402
4403 let show_git_gutter = layout
4404 .position_map
4405 .snapshot
4406 .show_git_diff_gutter
4407 .unwrap_or_else(|| {
4408 matches!(
4409 ProjectSettings::get_global(cx).git.git_gutter,
4410 Some(GitGutterSetting::TrackedFiles)
4411 )
4412 });
4413 if show_git_gutter {
4414 Self::paint_diff_hunks(layout, window, cx)
4415 }
4416
4417 let highlight_width = 0.275 * layout.position_map.line_height;
4418 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4419 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4420 for (range, color) in &layout.highlighted_gutter_ranges {
4421 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4422 layout.visible_display_row_range.start - DisplayRow(1)
4423 } else {
4424 range.start.row()
4425 };
4426 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4427 layout.visible_display_row_range.end + DisplayRow(1)
4428 } else {
4429 range.end.row()
4430 };
4431
4432 let start_y = layout.gutter_hitbox.top()
4433 + start_row.0 as f32 * layout.position_map.line_height
4434 - layout.position_map.scroll_pixel_position.y;
4435 let end_y = layout.gutter_hitbox.top()
4436 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4437 - layout.position_map.scroll_pixel_position.y;
4438 let bounds = Bounds::from_corners(
4439 point(layout.gutter_hitbox.left(), start_y),
4440 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4441 );
4442 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4443 }
4444 });
4445 }
4446
4447 fn paint_blamed_display_rows(
4448 &self,
4449 layout: &mut EditorLayout,
4450 window: &mut Window,
4451 cx: &mut App,
4452 ) {
4453 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4454 return;
4455 };
4456
4457 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4458 for mut blame_element in blamed_display_rows.into_iter() {
4459 blame_element.paint(window, cx);
4460 }
4461 })
4462 }
4463
4464 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4465 window.with_content_mask(
4466 Some(ContentMask {
4467 bounds: layout.text_hitbox.bounds,
4468 }),
4469 |window| {
4470 let cursor_style = if self
4471 .editor
4472 .read(cx)
4473 .hovered_link_state
4474 .as_ref()
4475 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4476 {
4477 CursorStyle::PointingHand
4478 } else {
4479 CursorStyle::IBeam
4480 };
4481 window.set_cursor_style(cursor_style, &layout.text_hitbox);
4482
4483 let invisible_display_ranges = self.paint_highlights(layout, window);
4484 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4485 self.paint_redactions(layout, window);
4486 self.paint_cursors(layout, window, cx);
4487 self.paint_inline_blame(layout, window, cx);
4488 self.paint_diff_hunk_controls(layout, window, cx);
4489 window.with_element_namespace("crease_trailers", |window| {
4490 for trailer in layout.crease_trailers.iter_mut().flatten() {
4491 trailer.element.paint(window, cx);
4492 }
4493 });
4494 },
4495 )
4496 }
4497
4498 fn paint_highlights(
4499 &mut self,
4500 layout: &mut EditorLayout,
4501 window: &mut Window,
4502 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4503 window.paint_layer(layout.text_hitbox.bounds, |window| {
4504 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4505 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4506 for (range, color) in &layout.highlighted_ranges {
4507 self.paint_highlighted_range(
4508 range.clone(),
4509 *color,
4510 Pixels::ZERO,
4511 line_end_overshoot,
4512 layout,
4513 window,
4514 );
4515 }
4516
4517 let corner_radius = 0.15 * layout.position_map.line_height;
4518
4519 for (player_color, selections) in &layout.selections {
4520 for selection in selections.iter() {
4521 self.paint_highlighted_range(
4522 selection.range.clone(),
4523 player_color.selection,
4524 corner_radius,
4525 corner_radius * 2.,
4526 layout,
4527 window,
4528 );
4529
4530 if selection.is_local && !selection.range.is_empty() {
4531 invisible_display_ranges.push(selection.range.clone());
4532 }
4533 }
4534 }
4535 invisible_display_ranges
4536 })
4537 }
4538
4539 fn paint_lines(
4540 &mut self,
4541 invisible_display_ranges: &[Range<DisplayPoint>],
4542 layout: &mut EditorLayout,
4543 window: &mut Window,
4544 cx: &mut App,
4545 ) {
4546 let whitespace_setting = self
4547 .editor
4548 .read(cx)
4549 .buffer
4550 .read(cx)
4551 .settings_at(0, cx)
4552 .show_whitespaces;
4553
4554 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4555 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4556 line_with_invisibles.draw(
4557 layout,
4558 row,
4559 layout.content_origin,
4560 whitespace_setting,
4561 invisible_display_ranges,
4562 window,
4563 cx,
4564 )
4565 }
4566
4567 for line_element in &mut layout.line_elements {
4568 line_element.paint(window, cx);
4569 }
4570 }
4571
4572 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4573 if layout.redacted_ranges.is_empty() {
4574 return;
4575 }
4576
4577 let line_end_overshoot = layout.line_end_overshoot();
4578
4579 // A softer than perfect black
4580 let redaction_color = gpui::rgb(0x0e1111);
4581
4582 window.paint_layer(layout.text_hitbox.bounds, |window| {
4583 for range in layout.redacted_ranges.iter() {
4584 self.paint_highlighted_range(
4585 range.clone(),
4586 redaction_color.into(),
4587 Pixels::ZERO,
4588 line_end_overshoot,
4589 layout,
4590 window,
4591 );
4592 }
4593 });
4594 }
4595
4596 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4597 for cursor in &mut layout.visible_cursors {
4598 cursor.paint(layout.content_origin, window, cx);
4599 }
4600 }
4601
4602 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4603 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4604
4605 if let Some(scrollbar_layout) = scrollbar_x {
4606 let hitbox = scrollbar_layout.hitbox.clone();
4607 let text_unit_size = scrollbar_layout.text_unit_size;
4608 let visible_range = scrollbar_layout.visible_range.clone();
4609 let thumb_bounds = scrollbar_layout.thumb_bounds();
4610
4611 if scrollbar_layout.visible {
4612 window.paint_layer(hitbox.bounds, |window| {
4613 window.paint_quad(quad(
4614 hitbox.bounds,
4615 Corners::default(),
4616 cx.theme().colors().scrollbar_track_background,
4617 Edges {
4618 top: Pixels::ZERO,
4619 right: Pixels::ZERO,
4620 bottom: Pixels::ZERO,
4621 left: Pixels::ZERO,
4622 },
4623 cx.theme().colors().scrollbar_track_border,
4624 ));
4625
4626 window.paint_quad(quad(
4627 thumb_bounds,
4628 Corners::default(),
4629 cx.theme().colors().scrollbar_thumb_background,
4630 Edges {
4631 top: Pixels::ZERO,
4632 right: Pixels::ZERO,
4633 bottom: Pixels::ZERO,
4634 left: ScrollbarLayout::BORDER_WIDTH,
4635 },
4636 cx.theme().colors().scrollbar_thumb_border,
4637 ));
4638 })
4639 }
4640
4641 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4642
4643 window.on_mouse_event({
4644 let editor = self.editor.clone();
4645
4646 // there may be a way to avoid this clone
4647 let hitbox = hitbox.clone();
4648
4649 let mut mouse_position = window.mouse_position();
4650 move |event: &MouseMoveEvent, phase, window, cx| {
4651 if phase == DispatchPhase::Capture {
4652 return;
4653 }
4654
4655 editor.update(cx, |editor, cx| {
4656 if event.pressed_button == Some(MouseButton::Left)
4657 && editor
4658 .scroll_manager
4659 .is_dragging_scrollbar(Axis::Horizontal)
4660 {
4661 let x = mouse_position.x;
4662 let new_x = event.position.x;
4663 if (hitbox.left()..hitbox.right()).contains(&x) {
4664 let mut position = editor.scroll_position(cx);
4665
4666 position.x += (new_x - x) / text_unit_size;
4667 if position.x < 0.0 {
4668 position.x = 0.0;
4669 }
4670 editor.set_scroll_position(position, window, cx);
4671 }
4672
4673 cx.stop_propagation();
4674 } else {
4675 editor.scroll_manager.set_is_dragging_scrollbar(
4676 Axis::Horizontal,
4677 false,
4678 cx,
4679 );
4680
4681 if hitbox.is_hovered(window) {
4682 editor.scroll_manager.show_scrollbar(window, cx);
4683 }
4684 }
4685 mouse_position = event.position;
4686 })
4687 }
4688 });
4689
4690 if self
4691 .editor
4692 .read(cx)
4693 .scroll_manager
4694 .is_dragging_scrollbar(Axis::Horizontal)
4695 {
4696 window.on_mouse_event({
4697 let editor = self.editor.clone();
4698 move |_: &MouseUpEvent, phase, _, cx| {
4699 if phase == DispatchPhase::Capture {
4700 return;
4701 }
4702
4703 editor.update(cx, |editor, cx| {
4704 editor.scroll_manager.set_is_dragging_scrollbar(
4705 Axis::Horizontal,
4706 false,
4707 cx,
4708 );
4709 cx.stop_propagation();
4710 });
4711 }
4712 });
4713 } else {
4714 window.on_mouse_event({
4715 let editor = self.editor.clone();
4716
4717 move |event: &MouseDownEvent, phase, window, cx| {
4718 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4719 return;
4720 }
4721
4722 editor.update(cx, |editor, cx| {
4723 editor.scroll_manager.set_is_dragging_scrollbar(
4724 Axis::Horizontal,
4725 true,
4726 cx,
4727 );
4728
4729 let x = event.position.x;
4730
4731 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4732 let center_row =
4733 ((x - hitbox.left()) / text_unit_size).round() as u32;
4734 let top_row = center_row.saturating_sub(
4735 (visible_range.end - visible_range.start) as u32 / 2,
4736 );
4737
4738 let mut position = editor.scroll_position(cx);
4739 position.x = top_row as f32;
4740
4741 editor.set_scroll_position(position, window, cx);
4742 } else {
4743 editor.scroll_manager.show_scrollbar(window, cx);
4744 }
4745
4746 cx.stop_propagation();
4747 });
4748 }
4749 });
4750 }
4751 }
4752
4753 if let Some(scrollbar_layout) = scrollbar_y {
4754 let hitbox = scrollbar_layout.hitbox.clone();
4755 let text_unit_size = scrollbar_layout.text_unit_size;
4756 let visible_range = scrollbar_layout.visible_range.clone();
4757 let thumb_bounds = scrollbar_layout.thumb_bounds();
4758
4759 if scrollbar_layout.visible {
4760 window.paint_layer(hitbox.bounds, |window| {
4761 window.paint_quad(quad(
4762 hitbox.bounds,
4763 Corners::default(),
4764 cx.theme().colors().scrollbar_track_background,
4765 Edges {
4766 top: Pixels::ZERO,
4767 right: Pixels::ZERO,
4768 bottom: Pixels::ZERO,
4769 left: ScrollbarLayout::BORDER_WIDTH,
4770 },
4771 cx.theme().colors().scrollbar_track_border,
4772 ));
4773
4774 let fast_markers =
4775 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4776 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4777 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4778
4779 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4780 for marker in markers.iter().chain(&fast_markers) {
4781 let mut marker = marker.clone();
4782 marker.bounds.origin += hitbox.origin;
4783 window.paint_quad(marker);
4784 }
4785
4786 window.paint_quad(quad(
4787 thumb_bounds,
4788 Corners::default(),
4789 cx.theme().colors().scrollbar_thumb_background,
4790 Edges {
4791 top: Pixels::ZERO,
4792 right: Pixels::ZERO,
4793 bottom: Pixels::ZERO,
4794 left: ScrollbarLayout::BORDER_WIDTH,
4795 },
4796 cx.theme().colors().scrollbar_thumb_border,
4797 ));
4798 });
4799 }
4800
4801 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4802
4803 window.on_mouse_event({
4804 let editor = self.editor.clone();
4805
4806 let hitbox = hitbox.clone();
4807
4808 let mut mouse_position = window.mouse_position();
4809 move |event: &MouseMoveEvent, phase, window, cx| {
4810 if phase == DispatchPhase::Capture {
4811 return;
4812 }
4813
4814 editor.update(cx, |editor, cx| {
4815 if event.pressed_button == Some(MouseButton::Left)
4816 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4817 {
4818 let y = mouse_position.y;
4819 let new_y = event.position.y;
4820 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4821 let mut position = editor.scroll_position(cx);
4822 position.y += (new_y - y) / text_unit_size;
4823 if position.y < 0.0 {
4824 position.y = 0.0;
4825 }
4826 editor.set_scroll_position(position, window, cx);
4827 }
4828 } else {
4829 editor.scroll_manager.set_is_dragging_scrollbar(
4830 Axis::Vertical,
4831 false,
4832 cx,
4833 );
4834
4835 if hitbox.is_hovered(window) {
4836 editor.scroll_manager.show_scrollbar(window, cx);
4837 }
4838 }
4839 mouse_position = event.position;
4840 })
4841 }
4842 });
4843
4844 if self
4845 .editor
4846 .read(cx)
4847 .scroll_manager
4848 .is_dragging_scrollbar(Axis::Vertical)
4849 {
4850 window.on_mouse_event({
4851 let editor = self.editor.clone();
4852 move |_: &MouseUpEvent, phase, _, cx| {
4853 if phase == DispatchPhase::Capture {
4854 return;
4855 }
4856
4857 editor.update(cx, |editor, cx| {
4858 editor.scroll_manager.set_is_dragging_scrollbar(
4859 Axis::Vertical,
4860 false,
4861 cx,
4862 );
4863 cx.stop_propagation();
4864 });
4865 }
4866 });
4867 } else {
4868 window.on_mouse_event({
4869 let editor = self.editor.clone();
4870
4871 move |event: &MouseDownEvent, phase, window, cx| {
4872 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4873 return;
4874 }
4875
4876 editor.update(cx, |editor, cx| {
4877 editor.scroll_manager.set_is_dragging_scrollbar(
4878 Axis::Vertical,
4879 true,
4880 cx,
4881 );
4882
4883 let y = event.position.y;
4884 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
4885 let center_row =
4886 ((y - hitbox.top()) / text_unit_size).round() as u32;
4887 let top_row = center_row.saturating_sub(
4888 (visible_range.end - visible_range.start) as u32 / 2,
4889 );
4890 let mut position = editor.scroll_position(cx);
4891 position.y = top_row as f32;
4892 editor.set_scroll_position(position, window, cx);
4893 } else {
4894 editor.scroll_manager.show_scrollbar(window, cx);
4895 }
4896
4897 cx.stop_propagation();
4898 });
4899 }
4900 });
4901 }
4902 }
4903 }
4904
4905 fn collect_fast_scrollbar_markers(
4906 &self,
4907 layout: &EditorLayout,
4908 scrollbar_layout: &ScrollbarLayout,
4909 cx: &mut App,
4910 ) -> Vec<PaintQuad> {
4911 const LIMIT: usize = 100;
4912 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4913 return vec![];
4914 }
4915 let cursor_ranges = layout
4916 .cursors
4917 .iter()
4918 .map(|(point, color)| ColoredRange {
4919 start: point.row(),
4920 end: point.row(),
4921 color: *color,
4922 })
4923 .collect_vec();
4924 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4925 }
4926
4927 fn refresh_slow_scrollbar_markers(
4928 &self,
4929 layout: &EditorLayout,
4930 scrollbar_layout: &ScrollbarLayout,
4931 window: &mut Window,
4932 cx: &mut App,
4933 ) {
4934 self.editor.update(cx, |editor, cx| {
4935 if !editor.is_singleton(cx)
4936 || !editor
4937 .scrollbar_marker_state
4938 .should_refresh(scrollbar_layout.hitbox.size)
4939 {
4940 return;
4941 }
4942
4943 let scrollbar_layout = scrollbar_layout.clone();
4944 let background_highlights = editor.background_highlights.clone();
4945 let snapshot = layout.position_map.snapshot.clone();
4946 let theme = cx.theme().clone();
4947 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4948
4949 editor.scrollbar_marker_state.dirty = false;
4950 editor.scrollbar_marker_state.pending_refresh =
4951 Some(cx.spawn_in(window, |editor, mut cx| async move {
4952 let scrollbar_size = scrollbar_layout.hitbox.size;
4953 let scrollbar_markers = cx
4954 .background_executor()
4955 .spawn(async move {
4956 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4957 let mut marker_quads = Vec::new();
4958 if scrollbar_settings.git_diff {
4959 let marker_row_ranges =
4960 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
4961 let start_display_row =
4962 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4963 .to_display_point(&snapshot.display_snapshot)
4964 .row();
4965 let mut end_display_row =
4966 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4967 .to_display_point(&snapshot.display_snapshot)
4968 .row();
4969 if end_display_row != start_display_row {
4970 end_display_row.0 -= 1;
4971 }
4972 let color = match &hunk.status() {
4973 DiffHunkStatus::Added => theme.status().created,
4974 DiffHunkStatus::Modified => theme.status().modified,
4975 DiffHunkStatus::Removed => theme.status().deleted,
4976 };
4977 ColoredRange {
4978 start: start_display_row,
4979 end: end_display_row,
4980 color,
4981 }
4982 });
4983
4984 marker_quads.extend(
4985 scrollbar_layout
4986 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4987 );
4988 }
4989
4990 for (background_highlight_id, (_, background_ranges)) in
4991 background_highlights.iter()
4992 {
4993 let is_search_highlights = *background_highlight_id
4994 == TypeId::of::<BufferSearchHighlights>();
4995 let is_symbol_occurrences = *background_highlight_id
4996 == TypeId::of::<DocumentHighlightRead>()
4997 || *background_highlight_id
4998 == TypeId::of::<DocumentHighlightWrite>();
4999 if (is_search_highlights && scrollbar_settings.search_results)
5000 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5001 {
5002 let mut color = theme.status().info;
5003 if is_symbol_occurrences {
5004 color.fade_out(0.5);
5005 }
5006 let marker_row_ranges = background_ranges.iter().map(|range| {
5007 let display_start = range
5008 .start
5009 .to_display_point(&snapshot.display_snapshot);
5010 let display_end =
5011 range.end.to_display_point(&snapshot.display_snapshot);
5012 ColoredRange {
5013 start: display_start.row(),
5014 end: display_end.row(),
5015 color,
5016 }
5017 });
5018 marker_quads.extend(
5019 scrollbar_layout
5020 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5021 );
5022 }
5023 }
5024
5025 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5026 let diagnostics = snapshot
5027 .buffer_snapshot
5028 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
5029 // Don't show diagnostics the user doesn't care about
5030 .filter(|diagnostic| {
5031 match (
5032 scrollbar_settings.diagnostics,
5033 diagnostic.diagnostic.severity,
5034 ) {
5035 (ScrollbarDiagnostics::All, _) => true,
5036 (
5037 ScrollbarDiagnostics::Error,
5038 DiagnosticSeverity::ERROR,
5039 ) => true,
5040 (
5041 ScrollbarDiagnostics::Warning,
5042 DiagnosticSeverity::ERROR
5043 | DiagnosticSeverity::WARNING,
5044 ) => true,
5045 (
5046 ScrollbarDiagnostics::Information,
5047 DiagnosticSeverity::ERROR
5048 | DiagnosticSeverity::WARNING
5049 | DiagnosticSeverity::INFORMATION,
5050 ) => true,
5051 (_, _) => false,
5052 }
5053 })
5054 // We want to sort by severity, in order to paint the most severe diagnostics last.
5055 .sorted_by_key(|diagnostic| {
5056 std::cmp::Reverse(diagnostic.diagnostic.severity)
5057 });
5058
5059 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5060 let start_display = diagnostic
5061 .range
5062 .start
5063 .to_display_point(&snapshot.display_snapshot);
5064 let end_display = diagnostic
5065 .range
5066 .end
5067 .to_display_point(&snapshot.display_snapshot);
5068 let color = match diagnostic.diagnostic.severity {
5069 DiagnosticSeverity::ERROR => theme.status().error,
5070 DiagnosticSeverity::WARNING => theme.status().warning,
5071 DiagnosticSeverity::INFORMATION => theme.status().info,
5072 _ => theme.status().hint,
5073 };
5074 ColoredRange {
5075 start: start_display.row(),
5076 end: end_display.row(),
5077 color,
5078 }
5079 });
5080 marker_quads.extend(
5081 scrollbar_layout
5082 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5083 );
5084 }
5085
5086 Arc::from(marker_quads)
5087 })
5088 .await;
5089
5090 editor.update(&mut cx, |editor, cx| {
5091 editor.scrollbar_marker_state.markers = scrollbar_markers;
5092 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5093 editor.scrollbar_marker_state.pending_refresh = None;
5094 cx.notify();
5095 })?;
5096
5097 Ok(())
5098 }));
5099 });
5100 }
5101
5102 #[allow(clippy::too_many_arguments)]
5103 fn paint_highlighted_range(
5104 &self,
5105 range: Range<DisplayPoint>,
5106 color: Hsla,
5107 corner_radius: Pixels,
5108 line_end_overshoot: Pixels,
5109 layout: &EditorLayout,
5110 window: &mut Window,
5111 ) {
5112 let start_row = layout.visible_display_row_range.start;
5113 let end_row = layout.visible_display_row_range.end;
5114 if range.start != range.end {
5115 let row_range = if range.end.column() == 0 {
5116 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5117 } else {
5118 cmp::max(range.start.row(), start_row)
5119 ..cmp::min(range.end.row().next_row(), end_row)
5120 };
5121
5122 let highlighted_range = HighlightedRange {
5123 color,
5124 line_height: layout.position_map.line_height,
5125 corner_radius,
5126 start_y: layout.content_origin.y
5127 + row_range.start.as_f32() * layout.position_map.line_height
5128 - layout.position_map.scroll_pixel_position.y,
5129 lines: row_range
5130 .iter_rows()
5131 .map(|row| {
5132 let line_layout =
5133 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5134 HighlightedRangeLine {
5135 start_x: if row == range.start.row() {
5136 layout.content_origin.x
5137 + line_layout.x_for_index(range.start.column() as usize)
5138 - layout.position_map.scroll_pixel_position.x
5139 } else {
5140 layout.content_origin.x
5141 - layout.position_map.scroll_pixel_position.x
5142 },
5143 end_x: if row == range.end.row() {
5144 layout.content_origin.x
5145 + line_layout.x_for_index(range.end.column() as usize)
5146 - layout.position_map.scroll_pixel_position.x
5147 } else {
5148 layout.content_origin.x + line_layout.width + line_end_overshoot
5149 - layout.position_map.scroll_pixel_position.x
5150 },
5151 }
5152 })
5153 .collect(),
5154 };
5155
5156 highlighted_range.paint(layout.text_hitbox.bounds, window);
5157 }
5158 }
5159
5160 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5161 if let Some(mut inline_blame) = layout.inline_blame.take() {
5162 window.paint_layer(layout.text_hitbox.bounds, |window| {
5163 inline_blame.paint(window, cx);
5164 })
5165 }
5166 }
5167
5168 fn paint_diff_hunk_controls(
5169 &mut self,
5170 layout: &mut EditorLayout,
5171 window: &mut Window,
5172 cx: &mut App,
5173 ) {
5174 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5175 diff_hunk_control.paint(window, cx);
5176 }
5177 }
5178
5179 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5180 for mut block in layout.blocks.drain(..) {
5181 block.element.paint(window, cx);
5182 }
5183 }
5184
5185 fn paint_inline_completion_popover(
5186 &mut self,
5187 layout: &mut EditorLayout,
5188 window: &mut Window,
5189 cx: &mut App,
5190 ) {
5191 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5192 inline_completion_popover.paint(window, cx);
5193 }
5194 }
5195
5196 fn paint_mouse_context_menu(
5197 &mut self,
5198 layout: &mut EditorLayout,
5199 window: &mut Window,
5200 cx: &mut App,
5201 ) {
5202 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5203 mouse_context_menu.paint(window, cx);
5204 }
5205 }
5206
5207 fn paint_scroll_wheel_listener(
5208 &mut self,
5209 layout: &EditorLayout,
5210 window: &mut Window,
5211 cx: &mut App,
5212 ) {
5213 window.on_mouse_event({
5214 let position_map = layout.position_map.clone();
5215 let editor = self.editor.clone();
5216 let hitbox = layout.hitbox.clone();
5217 let mut delta = ScrollDelta::default();
5218
5219 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5220 // accidentally turn off their scrolling.
5221 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5222
5223 move |event: &ScrollWheelEvent, phase, window, cx| {
5224 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5225 delta = delta.coalesce(event.delta);
5226 editor.update(cx, |editor, cx| {
5227 let position_map: &PositionMap = &position_map;
5228
5229 let line_height = position_map.line_height;
5230 let max_glyph_width = position_map.em_width;
5231 let (delta, axis) = match delta {
5232 gpui::ScrollDelta::Pixels(mut pixels) => {
5233 //Trackpad
5234 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5235 (pixels, axis)
5236 }
5237
5238 gpui::ScrollDelta::Lines(lines) => {
5239 //Not trackpad
5240 let pixels =
5241 point(lines.x * max_glyph_width, lines.y * line_height);
5242 (pixels, None)
5243 }
5244 };
5245
5246 let current_scroll_position = position_map.snapshot.scroll_position();
5247 let x = (current_scroll_position.x * max_glyph_width
5248 - (delta.x * scroll_sensitivity))
5249 / max_glyph_width;
5250 let y = (current_scroll_position.y * line_height
5251 - (delta.y * scroll_sensitivity))
5252 / line_height;
5253 let mut scroll_position =
5254 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5255 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5256 if forbid_vertical_scroll {
5257 scroll_position.y = current_scroll_position.y;
5258 }
5259
5260 if scroll_position != current_scroll_position {
5261 editor.scroll(scroll_position, axis, window, cx);
5262 cx.stop_propagation();
5263 } else if y < 0. {
5264 // Due to clamping, we may fail to detect cases of overscroll to the top;
5265 // We want the scroll manager to get an update in such cases and detect the change of direction
5266 // on the next frame.
5267 cx.notify();
5268 }
5269 });
5270 }
5271 }
5272 });
5273 }
5274
5275 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5276 self.paint_scroll_wheel_listener(layout, window, cx);
5277
5278 window.on_mouse_event({
5279 let position_map = layout.position_map.clone();
5280 let editor = self.editor.clone();
5281 let text_hitbox = layout.text_hitbox.clone();
5282 let gutter_hitbox = layout.gutter_hitbox.clone();
5283 let multi_buffer_range =
5284 layout
5285 .display_hunks
5286 .iter()
5287 .find_map(|(hunk, hunk_hitbox)| match hunk {
5288 DisplayDiffHunk::Folded { .. } => None,
5289 DisplayDiffHunk::Unfolded {
5290 multi_buffer_range, ..
5291 } => {
5292 if hunk_hitbox
5293 .as_ref()
5294 .map(|hitbox| hitbox.is_hovered(window))
5295 .unwrap_or(false)
5296 {
5297 Some(multi_buffer_range.clone())
5298 } else {
5299 None
5300 }
5301 }
5302 });
5303 let line_numbers = layout.line_numbers.clone();
5304
5305 move |event: &MouseDownEvent, phase, window, cx| {
5306 if phase == DispatchPhase::Bubble {
5307 match event.button {
5308 MouseButton::Left => editor.update(cx, |editor, cx| {
5309 Self::mouse_left_down(
5310 editor,
5311 event,
5312 multi_buffer_range.clone(),
5313 &position_map,
5314 &text_hitbox,
5315 &gutter_hitbox,
5316 line_numbers.as_ref(),
5317 window,
5318 cx,
5319 );
5320 }),
5321 MouseButton::Right => editor.update(cx, |editor, cx| {
5322 Self::mouse_right_down(
5323 editor,
5324 event,
5325 &position_map,
5326 &text_hitbox,
5327 window,
5328 cx,
5329 );
5330 }),
5331 MouseButton::Middle => editor.update(cx, |editor, cx| {
5332 Self::mouse_middle_down(
5333 editor,
5334 event,
5335 &position_map,
5336 &text_hitbox,
5337 window,
5338 cx,
5339 );
5340 }),
5341 _ => {}
5342 };
5343 }
5344 }
5345 });
5346
5347 window.on_mouse_event({
5348 let editor = self.editor.clone();
5349 let position_map = layout.position_map.clone();
5350 let text_hitbox = layout.text_hitbox.clone();
5351
5352 move |event: &MouseUpEvent, phase, window, cx| {
5353 if phase == DispatchPhase::Bubble {
5354 editor.update(cx, |editor, cx| {
5355 Self::mouse_up(editor, event, &position_map, &text_hitbox, window, cx)
5356 });
5357 }
5358 }
5359 });
5360 window.on_mouse_event({
5361 let position_map = layout.position_map.clone();
5362 let editor = self.editor.clone();
5363 let text_hitbox = layout.text_hitbox.clone();
5364 let gutter_hitbox = layout.gutter_hitbox.clone();
5365
5366 move |event: &MouseMoveEvent, phase, window, cx| {
5367 if phase == DispatchPhase::Bubble {
5368 editor.update(cx, |editor, cx| {
5369 if editor.hover_state.focused(window, cx) {
5370 return;
5371 }
5372 if event.pressed_button == Some(MouseButton::Left)
5373 || event.pressed_button == Some(MouseButton::Middle)
5374 {
5375 Self::mouse_dragged(
5376 editor,
5377 event,
5378 &position_map,
5379 text_hitbox.bounds,
5380 window,
5381 cx,
5382 )
5383 }
5384
5385 Self::mouse_moved(
5386 editor,
5387 event,
5388 &position_map,
5389 &text_hitbox,
5390 &gutter_hitbox,
5391 window,
5392 cx,
5393 )
5394 });
5395 }
5396 }
5397 });
5398 }
5399
5400 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5401 bounds.top_right().x - self.style.scrollbar_width
5402 }
5403
5404 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5405 let style = &self.style;
5406 let font_size = style.text.font_size.to_pixels(window.rem_size());
5407 let layout = window
5408 .text_system()
5409 .shape_line(
5410 SharedString::from(" ".repeat(column)),
5411 font_size,
5412 &[TextRun {
5413 len: column,
5414 font: style.text.font(),
5415 color: Hsla::default(),
5416 background_color: None,
5417 underline: None,
5418 strikethrough: None,
5419 }],
5420 )
5421 .unwrap();
5422
5423 layout.width
5424 }
5425
5426 fn max_line_number_width(
5427 &self,
5428 snapshot: &EditorSnapshot,
5429 window: &mut Window,
5430 cx: &mut App,
5431 ) -> Pixels {
5432 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5433 self.column_pixels(digit_count, window, cx)
5434 }
5435
5436 fn shape_line_number(
5437 &self,
5438 text: SharedString,
5439 color: Hsla,
5440 window: &mut Window,
5441 ) -> anyhow::Result<ShapedLine> {
5442 let run = TextRun {
5443 len: text.len(),
5444 font: self.style.text.font(),
5445 color,
5446 background_color: None,
5447 underline: None,
5448 strikethrough: None,
5449 };
5450 window.text_system().shape_line(
5451 text,
5452 self.style.text.font_size.to_pixels(window.rem_size()),
5453 &[run],
5454 )
5455 }
5456}
5457
5458fn header_jump_data(
5459 snapshot: &EditorSnapshot,
5460 block_row_start: DisplayRow,
5461 height: u32,
5462 for_excerpt: &ExcerptInfo,
5463) -> JumpData {
5464 let range = &for_excerpt.range;
5465 let buffer = &for_excerpt.buffer;
5466 let jump_anchor = range
5467 .primary
5468 .as_ref()
5469 .map_or(range.context.start, |primary| primary.start);
5470
5471 let excerpt_start = range.context.start;
5472 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5473 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
5474 0
5475 } else {
5476 let excerpt_start_row = language::ToPoint::to_point(&excerpt_start, buffer).row;
5477 jump_position.row - excerpt_start_row
5478 };
5479
5480 let line_offset_from_top = (block_row_start.0 + height + offset_from_excerpt_start)
5481 .saturating_sub(
5482 snapshot
5483 .scroll_anchor
5484 .scroll_position(&snapshot.display_snapshot)
5485 .y as u32,
5486 );
5487
5488 JumpData::MultiBufferPoint {
5489 excerpt_id: for_excerpt.id,
5490 anchor: jump_anchor,
5491 position: language::ToPoint::to_point(&jump_anchor, buffer),
5492 line_offset_from_top,
5493 }
5494}
5495
5496fn inline_completion_tab_indicator(
5497 label: impl Into<SharedString>,
5498 icon: Option<IconName>,
5499 cx: &App,
5500) -> AnyElement {
5501 let tab_kbd = h_flex()
5502 .px_0p5()
5503 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5504 .text_size(TextSize::XSmall.rems(cx))
5505 .text_color(cx.theme().colors().text)
5506 .child("tab");
5507
5508 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5509
5510 h_flex()
5511 .py_0p5()
5512 .pl_1()
5513 .pr(padding_right)
5514 .gap_1()
5515 .bg(cx.theme().colors().text_accent.opacity(0.15))
5516 .border_1()
5517 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5518 .rounded_md()
5519 .shadow_sm()
5520 .child(tab_kbd)
5521 .child(Label::new(label).size(LabelSize::Small))
5522 .when_some(icon, |element, icon| {
5523 element.child(
5524 div()
5525 .mt(px(1.5))
5526 .child(Icon::new(icon).size(IconSize::Small)),
5527 )
5528 })
5529 .into_any()
5530}
5531
5532#[allow(clippy::too_many_arguments)]
5533fn prepaint_gutter_button(
5534 button: IconButton,
5535 row: DisplayRow,
5536 line_height: Pixels,
5537 gutter_dimensions: &GutterDimensions,
5538 scroll_pixel_position: gpui::Point<Pixels>,
5539 gutter_hitbox: &Hitbox,
5540 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5541 window: &mut Window,
5542 cx: &mut App,
5543) -> AnyElement {
5544 let mut button = button.into_any_element();
5545 let available_space = size(
5546 AvailableSpace::MinContent,
5547 AvailableSpace::Definite(line_height),
5548 );
5549 let indicator_size = button.layout_as_root(available_space, window, cx);
5550
5551 let blame_width = gutter_dimensions.git_blame_entries_width;
5552 let gutter_width = rows_with_hunk_bounds
5553 .get(&row)
5554 .map(|bounds| bounds.size.width);
5555 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5556
5557 let mut x = left_offset;
5558 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5559 - indicator_size.width
5560 - left_offset;
5561 x += available_width / 2.;
5562
5563 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5564 y += (line_height - indicator_size.height) / 2.;
5565
5566 button.prepaint_as_root(
5567 gutter_hitbox.origin + point(x, y),
5568 available_space,
5569 window,
5570 cx,
5571 );
5572 button
5573}
5574
5575fn render_inline_blame_entry(
5576 blame: &gpui::Entity<GitBlame>,
5577 blame_entry: BlameEntry,
5578 style: &EditorStyle,
5579 workspace: Option<WeakEntity<Workspace>>,
5580 cx: &mut App,
5581) -> AnyElement {
5582 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5583
5584 let author = blame_entry.author.as_deref().unwrap_or_default();
5585 let summary_enabled = ProjectSettings::get_global(cx)
5586 .git
5587 .show_inline_commit_summary();
5588
5589 let text = match blame_entry.summary.as_ref() {
5590 Some(summary) if summary_enabled => {
5591 format!("{}, {} - {}", author, relative_timestamp, summary)
5592 }
5593 _ => format!("{}, {}", author, relative_timestamp),
5594 };
5595
5596 let details = blame.read(cx).details_for_entry(&blame_entry);
5597
5598 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5599
5600 h_flex()
5601 .id("inline-blame")
5602 .w_full()
5603 .font_family(style.text.font().family)
5604 .text_color(cx.theme().status().hint)
5605 .line_height(style.text.line_height)
5606 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5607 .child(text)
5608 .gap_2()
5609 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5610 .into_any()
5611}
5612
5613fn render_blame_entry(
5614 ix: usize,
5615 blame: &gpui::Entity<GitBlame>,
5616 blame_entry: BlameEntry,
5617 style: &EditorStyle,
5618 last_used_color: &mut Option<(PlayerColor, Oid)>,
5619 editor: Entity<Editor>,
5620 cx: &mut App,
5621) -> AnyElement {
5622 let mut sha_color = cx
5623 .theme()
5624 .players()
5625 .color_for_participant(blame_entry.sha.into());
5626 // If the last color we used is the same as the one we get for this line, but
5627 // the commit SHAs are different, then we try again to get a different color.
5628 match *last_used_color {
5629 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5630 let index: u32 = blame_entry.sha.into();
5631 sha_color = cx.theme().players().color_for_participant(index + 1);
5632 }
5633 _ => {}
5634 };
5635 last_used_color.replace((sha_color, blame_entry.sha));
5636
5637 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5638
5639 let short_commit_id = blame_entry.sha.display_short();
5640
5641 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5642 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5643
5644 let details = blame.read(cx).details_for_entry(&blame_entry);
5645
5646 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5647
5648 let tooltip =
5649 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5650
5651 h_flex()
5652 .w_full()
5653 .justify_between()
5654 .font_family(style.text.font().family)
5655 .line_height(style.text.line_height)
5656 .id(("blame", ix))
5657 .text_color(cx.theme().status().hint)
5658 .pr_2()
5659 .gap_2()
5660 .child(
5661 h_flex()
5662 .items_center()
5663 .gap_2()
5664 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5665 .child(name),
5666 )
5667 .child(relative_timestamp)
5668 .on_mouse_down(MouseButton::Right, {
5669 let blame_entry = blame_entry.clone();
5670 let details = details.clone();
5671 move |event, window, cx| {
5672 deploy_blame_entry_context_menu(
5673 &blame_entry,
5674 details.as_ref(),
5675 editor.clone(),
5676 event.position,
5677 window,
5678 cx,
5679 );
5680 }
5681 })
5682 .hover(|style| style.bg(cx.theme().colors().element_hover))
5683 .when_some(
5684 details.and_then(|details| details.permalink),
5685 |this, url| {
5686 let url = url.clone();
5687 this.cursor_pointer().on_click(move |_, _, cx| {
5688 cx.stop_propagation();
5689 cx.open_url(url.as_str())
5690 })
5691 },
5692 )
5693 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5694 .into_any()
5695}
5696
5697fn deploy_blame_entry_context_menu(
5698 blame_entry: &BlameEntry,
5699 details: Option<&CommitDetails>,
5700 editor: Entity<Editor>,
5701 position: gpui::Point<Pixels>,
5702 window: &mut Window,
5703 cx: &mut App,
5704) {
5705 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5706 let sha = format!("{}", blame_entry.sha);
5707 menu.on_blur_subscription(Subscription::new(|| {}))
5708 .entry("Copy commit SHA", None, move |_, cx| {
5709 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5710 })
5711 .when_some(
5712 details.and_then(|details| details.permalink.clone()),
5713 |this, url| {
5714 this.entry("Open permalink", None, move |_, cx| {
5715 cx.open_url(url.as_str())
5716 })
5717 },
5718 )
5719 });
5720
5721 editor.update(cx, move |editor, cx| {
5722 editor.mouse_context_menu = Some(MouseContextMenu::new(
5723 MenuPosition::PinnedToScreen(position),
5724 context_menu,
5725 window,
5726 cx,
5727 ));
5728 cx.notify();
5729 });
5730}
5731
5732#[derive(Debug)]
5733pub(crate) struct LineWithInvisibles {
5734 fragments: SmallVec<[LineFragment; 1]>,
5735 invisibles: Vec<Invisible>,
5736 len: usize,
5737 width: Pixels,
5738 font_size: Pixels,
5739}
5740
5741#[allow(clippy::large_enum_variant)]
5742enum LineFragment {
5743 Text(ShapedLine),
5744 Element {
5745 element: Option<AnyElement>,
5746 size: Size<Pixels>,
5747 len: usize,
5748 },
5749}
5750
5751impl fmt::Debug for LineFragment {
5752 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5753 match self {
5754 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5755 LineFragment::Element { size, len, .. } => f
5756 .debug_struct("Element")
5757 .field("size", size)
5758 .field("len", len)
5759 .finish(),
5760 }
5761 }
5762}
5763
5764impl LineWithInvisibles {
5765 #[allow(clippy::too_many_arguments)]
5766 fn from_chunks<'a>(
5767 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5768 editor_style: &EditorStyle,
5769 max_line_len: usize,
5770 max_line_count: usize,
5771 editor_mode: EditorMode,
5772 text_width: Pixels,
5773 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5774 window: &mut Window,
5775 cx: &mut App,
5776 ) -> Vec<Self> {
5777 let text_style = &editor_style.text;
5778 let mut layouts = Vec::with_capacity(max_line_count);
5779 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5780 let mut line = String::new();
5781 let mut invisibles = Vec::new();
5782 let mut width = Pixels::ZERO;
5783 let mut len = 0;
5784 let mut styles = Vec::new();
5785 let mut non_whitespace_added = false;
5786 let mut row = 0;
5787 let mut line_exceeded_max_len = false;
5788 let font_size = text_style.font_size.to_pixels(window.rem_size());
5789
5790 let ellipsis = SharedString::from("⋯");
5791
5792 for highlighted_chunk in chunks.chain([HighlightedChunk {
5793 text: "\n",
5794 style: None,
5795 is_tab: false,
5796 replacement: None,
5797 }]) {
5798 if let Some(replacement) = highlighted_chunk.replacement {
5799 if !line.is_empty() {
5800 let shaped_line = window
5801 .text_system()
5802 .shape_line(line.clone().into(), font_size, &styles)
5803 .unwrap();
5804 width += shaped_line.width;
5805 len += shaped_line.len;
5806 fragments.push(LineFragment::Text(shaped_line));
5807 line.clear();
5808 styles.clear();
5809 }
5810
5811 match replacement {
5812 ChunkReplacement::Renderer(renderer) => {
5813 let available_width = if renderer.constrain_width {
5814 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5815 ellipsis.clone()
5816 } else {
5817 SharedString::from(Arc::from(highlighted_chunk.text))
5818 };
5819 let shaped_line = window
5820 .text_system()
5821 .shape_line(
5822 chunk,
5823 font_size,
5824 &[text_style.to_run(highlighted_chunk.text.len())],
5825 )
5826 .unwrap();
5827 AvailableSpace::Definite(shaped_line.width)
5828 } else {
5829 AvailableSpace::MinContent
5830 };
5831
5832 let mut element = (renderer.render)(&mut ChunkRendererContext {
5833 context: cx,
5834 window,
5835 max_width: text_width,
5836 });
5837 let line_height = text_style.line_height_in_pixels(window.rem_size());
5838 let size = element.layout_as_root(
5839 size(available_width, AvailableSpace::Definite(line_height)),
5840 window,
5841 cx,
5842 );
5843
5844 width += size.width;
5845 len += highlighted_chunk.text.len();
5846 fragments.push(LineFragment::Element {
5847 element: Some(element),
5848 size,
5849 len: highlighted_chunk.text.len(),
5850 });
5851 }
5852 ChunkReplacement::Str(x) => {
5853 let text_style = if let Some(style) = highlighted_chunk.style {
5854 Cow::Owned(text_style.clone().highlight(style))
5855 } else {
5856 Cow::Borrowed(text_style)
5857 };
5858
5859 let run = TextRun {
5860 len: x.len(),
5861 font: text_style.font(),
5862 color: text_style.color,
5863 background_color: text_style.background_color,
5864 underline: text_style.underline,
5865 strikethrough: text_style.strikethrough,
5866 };
5867 let line_layout = window
5868 .text_system()
5869 .shape_line(x, font_size, &[run])
5870 .unwrap()
5871 .with_len(highlighted_chunk.text.len());
5872
5873 width += line_layout.width;
5874 len += highlighted_chunk.text.len();
5875 fragments.push(LineFragment::Text(line_layout))
5876 }
5877 }
5878 } else {
5879 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5880 if ix > 0 {
5881 let shaped_line = window
5882 .text_system()
5883 .shape_line(line.clone().into(), font_size, &styles)
5884 .unwrap();
5885 width += shaped_line.width;
5886 len += shaped_line.len;
5887 fragments.push(LineFragment::Text(shaped_line));
5888 layouts.push(Self {
5889 width: mem::take(&mut width),
5890 len: mem::take(&mut len),
5891 fragments: mem::take(&mut fragments),
5892 invisibles: std::mem::take(&mut invisibles),
5893 font_size,
5894 });
5895
5896 line.clear();
5897 styles.clear();
5898 row += 1;
5899 line_exceeded_max_len = false;
5900 non_whitespace_added = false;
5901 if row == max_line_count {
5902 return layouts;
5903 }
5904 }
5905
5906 if !line_chunk.is_empty() && !line_exceeded_max_len {
5907 let text_style = if let Some(style) = highlighted_chunk.style {
5908 Cow::Owned(text_style.clone().highlight(style))
5909 } else {
5910 Cow::Borrowed(text_style)
5911 };
5912
5913 if line.len() + line_chunk.len() > max_line_len {
5914 let mut chunk_len = max_line_len - line.len();
5915 while !line_chunk.is_char_boundary(chunk_len) {
5916 chunk_len -= 1;
5917 }
5918 line_chunk = &line_chunk[..chunk_len];
5919 line_exceeded_max_len = true;
5920 }
5921
5922 styles.push(TextRun {
5923 len: line_chunk.len(),
5924 font: text_style.font(),
5925 color: text_style.color,
5926 background_color: text_style.background_color,
5927 underline: text_style.underline,
5928 strikethrough: text_style.strikethrough,
5929 });
5930
5931 if editor_mode == EditorMode::Full {
5932 // Line wrap pads its contents with fake whitespaces,
5933 // avoid printing them
5934 let is_soft_wrapped = is_row_soft_wrapped(row);
5935 if highlighted_chunk.is_tab {
5936 if non_whitespace_added || !is_soft_wrapped {
5937 invisibles.push(Invisible::Tab {
5938 line_start_offset: line.len(),
5939 line_end_offset: line.len() + line_chunk.len(),
5940 });
5941 }
5942 } else {
5943 invisibles.extend(line_chunk.char_indices().filter_map(
5944 |(index, c)| {
5945 let is_whitespace = c.is_whitespace();
5946 non_whitespace_added |= !is_whitespace;
5947 if is_whitespace
5948 && (non_whitespace_added || !is_soft_wrapped)
5949 {
5950 Some(Invisible::Whitespace {
5951 line_offset: line.len() + index,
5952 })
5953 } else {
5954 None
5955 }
5956 },
5957 ))
5958 }
5959 }
5960
5961 line.push_str(line_chunk);
5962 }
5963 }
5964 }
5965 }
5966
5967 layouts
5968 }
5969
5970 #[allow(clippy::too_many_arguments)]
5971 fn prepaint(
5972 &mut self,
5973 line_height: Pixels,
5974 scroll_pixel_position: gpui::Point<Pixels>,
5975 row: DisplayRow,
5976 content_origin: gpui::Point<Pixels>,
5977 line_elements: &mut SmallVec<[AnyElement; 1]>,
5978 window: &mut Window,
5979 cx: &mut App,
5980 ) {
5981 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
5982 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
5983 for fragment in &mut self.fragments {
5984 match fragment {
5985 LineFragment::Text(line) => {
5986 fragment_origin.x += line.width;
5987 }
5988 LineFragment::Element { element, size, .. } => {
5989 let mut element = element
5990 .take()
5991 .expect("you can't prepaint LineWithInvisibles twice");
5992
5993 // Center the element vertically within the line.
5994 let mut element_origin = fragment_origin;
5995 element_origin.y += (line_height - size.height) / 2.;
5996 element.prepaint_at(element_origin, window, cx);
5997 line_elements.push(element);
5998
5999 fragment_origin.x += size.width;
6000 }
6001 }
6002 }
6003 }
6004
6005 #[allow(clippy::too_many_arguments)]
6006 fn draw(
6007 &self,
6008 layout: &EditorLayout,
6009 row: DisplayRow,
6010 content_origin: gpui::Point<Pixels>,
6011 whitespace_setting: ShowWhitespaceSetting,
6012 selection_ranges: &[Range<DisplayPoint>],
6013 window: &mut Window,
6014 cx: &mut App,
6015 ) {
6016 let line_height = layout.position_map.line_height;
6017 let line_y = line_height
6018 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6019
6020 let mut fragment_origin =
6021 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6022
6023 for fragment in &self.fragments {
6024 match fragment {
6025 LineFragment::Text(line) => {
6026 line.paint(fragment_origin, line_height, window, cx)
6027 .log_err();
6028 fragment_origin.x += line.width;
6029 }
6030 LineFragment::Element { size, .. } => {
6031 fragment_origin.x += size.width;
6032 }
6033 }
6034 }
6035
6036 self.draw_invisibles(
6037 selection_ranges,
6038 layout,
6039 content_origin,
6040 line_y,
6041 row,
6042 line_height,
6043 whitespace_setting,
6044 window,
6045 cx,
6046 );
6047 }
6048
6049 #[allow(clippy::too_many_arguments)]
6050 fn draw_invisibles(
6051 &self,
6052 selection_ranges: &[Range<DisplayPoint>],
6053 layout: &EditorLayout,
6054 content_origin: gpui::Point<Pixels>,
6055 line_y: Pixels,
6056 row: DisplayRow,
6057 line_height: Pixels,
6058 whitespace_setting: ShowWhitespaceSetting,
6059 window: &mut Window,
6060 cx: &mut App,
6061 ) {
6062 let extract_whitespace_info = |invisible: &Invisible| {
6063 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6064 Invisible::Tab {
6065 line_start_offset,
6066 line_end_offset,
6067 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6068 Invisible::Whitespace { line_offset } => {
6069 (*line_offset, line_offset + 1, &layout.space_invisible)
6070 }
6071 };
6072
6073 let x_offset = self.x_for_index(token_offset);
6074 let invisible_offset =
6075 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6076 let origin = content_origin
6077 + gpui::point(
6078 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6079 line_y,
6080 );
6081
6082 (
6083 [token_offset, token_end_offset],
6084 Box::new(move |window: &mut Window, cx: &mut App| {
6085 invisible_symbol
6086 .paint(origin, line_height, window, cx)
6087 .log_err();
6088 }),
6089 )
6090 };
6091
6092 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6093 match whitespace_setting {
6094 ShowWhitespaceSetting::None => (),
6095 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6096 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6097 let invisible_point = DisplayPoint::new(row, start as u32);
6098 if !selection_ranges
6099 .iter()
6100 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6101 {
6102 return;
6103 }
6104
6105 paint(window, cx);
6106 }),
6107
6108 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6109 // - It is a tab
6110 // - It is adjacent to an edge (start or end)
6111 // - It is adjacent to a whitespace (left or right)
6112 ShowWhitespaceSetting::Boundary => {
6113 // 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
6114 // the above cases.
6115 // Note: We zip in the original `invisibles` to check for tab equality
6116 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6117 for (([start, end], paint), invisible) in
6118 invisible_iter.zip_eq(self.invisibles.iter())
6119 {
6120 let should_render = match (&last_seen, invisible) {
6121 (_, Invisible::Tab { .. }) => true,
6122 (Some((_, last_end, _)), _) => *last_end == start,
6123 _ => false,
6124 };
6125
6126 if should_render || start == 0 || end == self.len {
6127 paint(window, cx);
6128
6129 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6130 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6131 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6132 // Note that we need to make sure that the last one is actually adjacent
6133 if !should_render_last && last_end == start {
6134 paint_last(window, cx);
6135 }
6136 }
6137 }
6138
6139 // Manually render anything within a selection
6140 let invisible_point = DisplayPoint::new(row, start as u32);
6141 if selection_ranges.iter().any(|region| {
6142 region.start <= invisible_point && invisible_point < region.end
6143 }) {
6144 paint(window, cx);
6145 }
6146
6147 last_seen = Some((should_render, end, paint));
6148 }
6149 }
6150 }
6151 }
6152
6153 pub fn x_for_index(&self, index: usize) -> Pixels {
6154 let mut fragment_start_x = Pixels::ZERO;
6155 let mut fragment_start_index = 0;
6156
6157 for fragment in &self.fragments {
6158 match fragment {
6159 LineFragment::Text(shaped_line) => {
6160 let fragment_end_index = fragment_start_index + shaped_line.len;
6161 if index < fragment_end_index {
6162 return fragment_start_x
6163 + shaped_line.x_for_index(index - fragment_start_index);
6164 }
6165 fragment_start_x += shaped_line.width;
6166 fragment_start_index = fragment_end_index;
6167 }
6168 LineFragment::Element { len, size, .. } => {
6169 let fragment_end_index = fragment_start_index + len;
6170 if index < fragment_end_index {
6171 return fragment_start_x;
6172 }
6173 fragment_start_x += size.width;
6174 fragment_start_index = fragment_end_index;
6175 }
6176 }
6177 }
6178
6179 fragment_start_x
6180 }
6181
6182 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6183 let mut fragment_start_x = Pixels::ZERO;
6184 let mut fragment_start_index = 0;
6185
6186 for fragment in &self.fragments {
6187 match fragment {
6188 LineFragment::Text(shaped_line) => {
6189 let fragment_end_x = fragment_start_x + shaped_line.width;
6190 if x < fragment_end_x {
6191 return Some(
6192 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6193 );
6194 }
6195 fragment_start_x = fragment_end_x;
6196 fragment_start_index += shaped_line.len;
6197 }
6198 LineFragment::Element { len, size, .. } => {
6199 let fragment_end_x = fragment_start_x + size.width;
6200 if x < fragment_end_x {
6201 return Some(fragment_start_index);
6202 }
6203 fragment_start_index += len;
6204 fragment_start_x = fragment_end_x;
6205 }
6206 }
6207 }
6208
6209 None
6210 }
6211
6212 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6213 let mut fragment_start_index = 0;
6214
6215 for fragment in &self.fragments {
6216 match fragment {
6217 LineFragment::Text(shaped_line) => {
6218 let fragment_end_index = fragment_start_index + shaped_line.len;
6219 if index < fragment_end_index {
6220 return shaped_line.font_id_for_index(index - fragment_start_index);
6221 }
6222 fragment_start_index = fragment_end_index;
6223 }
6224 LineFragment::Element { len, .. } => {
6225 let fragment_end_index = fragment_start_index + len;
6226 if index < fragment_end_index {
6227 return None;
6228 }
6229 fragment_start_index = fragment_end_index;
6230 }
6231 }
6232 }
6233
6234 None
6235 }
6236}
6237
6238#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6239enum Invisible {
6240 /// A tab character
6241 ///
6242 /// A tab character is internally represented by spaces (configured by the user's tab width)
6243 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6244 /// adjacency checks.
6245 Tab {
6246 line_start_offset: usize,
6247 line_end_offset: usize,
6248 },
6249 Whitespace {
6250 line_offset: usize,
6251 },
6252}
6253
6254impl EditorElement {
6255 /// Returns the rem size to use when rendering the [`EditorElement`].
6256 ///
6257 /// This allows UI elements to scale based on the `buffer_font_size`.
6258 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6259 match self.editor.read(cx).mode {
6260 EditorMode::Full => {
6261 let buffer_font_size = self.style.text.font_size;
6262 match buffer_font_size {
6263 AbsoluteLength::Pixels(pixels) => {
6264 let rem_size_scale = {
6265 // Our default UI font size is 14px on a 16px base scale.
6266 // This means the default UI font size is 0.875rems.
6267 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6268
6269 // We then determine the delta between a single rem and the default font
6270 // size scale.
6271 let default_font_size_delta = 1. - default_font_size_scale;
6272
6273 // Finally, we add this delta to 1rem to get the scale factor that
6274 // should be used to scale up the UI.
6275 1. + default_font_size_delta
6276 };
6277
6278 Some(pixels * rem_size_scale)
6279 }
6280 AbsoluteLength::Rems(rems) => {
6281 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6282 }
6283 }
6284 }
6285 // We currently use single-line and auto-height editors in UI contexts,
6286 // so we don't want to scale everything with the buffer font size, as it
6287 // ends up looking off.
6288 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6289 }
6290 }
6291}
6292
6293impl Element for EditorElement {
6294 type RequestLayoutState = ();
6295 type PrepaintState = EditorLayout;
6296
6297 fn id(&self) -> Option<ElementId> {
6298 None
6299 }
6300
6301 fn request_layout(
6302 &mut self,
6303 _: Option<&GlobalElementId>,
6304 window: &mut Window,
6305 cx: &mut App,
6306 ) -> (gpui::LayoutId, ()) {
6307 let rem_size = self.rem_size(cx);
6308 window.with_rem_size(rem_size, |window| {
6309 self.editor.update(cx, |editor, cx| {
6310 editor.set_style(self.style.clone(), window, cx);
6311
6312 let layout_id = match editor.mode {
6313 EditorMode::SingleLine { auto_width } => {
6314 let rem_size = window.rem_size();
6315
6316 let height = self.style.text.line_height_in_pixels(rem_size);
6317 if auto_width {
6318 let editor_handle = cx.entity().clone();
6319 let style = self.style.clone();
6320 window.request_measured_layout(
6321 Style::default(),
6322 move |_, _, window, cx| {
6323 let editor_snapshot = editor_handle
6324 .update(cx, |editor, cx| editor.snapshot(window, cx));
6325 let line = Self::layout_lines(
6326 DisplayRow(0)..DisplayRow(1),
6327 &editor_snapshot,
6328 &style,
6329 px(f32::MAX),
6330 |_| false, // Single lines never soft wrap
6331 window,
6332 cx,
6333 )
6334 .pop()
6335 .unwrap();
6336
6337 let font_id =
6338 window.text_system().resolve_font(&style.text.font());
6339 let font_size =
6340 style.text.font_size.to_pixels(window.rem_size());
6341 let em_width = window
6342 .text_system()
6343 .typographic_bounds(font_id, font_size, 'm')
6344 .unwrap()
6345 .size
6346 .width;
6347
6348 size(line.width + em_width, height)
6349 },
6350 )
6351 } else {
6352 let mut style = Style::default();
6353 style.size.height = height.into();
6354 style.size.width = relative(1.).into();
6355 window.request_layout(style, None, cx)
6356 }
6357 }
6358 EditorMode::AutoHeight { max_lines } => {
6359 let editor_handle = cx.entity().clone();
6360 let max_line_number_width =
6361 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6362 window.request_measured_layout(
6363 Style::default(),
6364 move |known_dimensions, available_space, window, cx| {
6365 editor_handle
6366 .update(cx, |editor, cx| {
6367 compute_auto_height_layout(
6368 editor,
6369 max_lines,
6370 max_line_number_width,
6371 known_dimensions,
6372 available_space.width,
6373 window,
6374 cx,
6375 )
6376 })
6377 .unwrap_or_default()
6378 },
6379 )
6380 }
6381 EditorMode::Full => {
6382 let mut style = Style::default();
6383 style.size.width = relative(1.).into();
6384 style.size.height = relative(1.).into();
6385 window.request_layout(style, None, cx)
6386 }
6387 };
6388
6389 (layout_id, ())
6390 })
6391 })
6392 }
6393
6394 fn prepaint(
6395 &mut self,
6396 _: Option<&GlobalElementId>,
6397 bounds: Bounds<Pixels>,
6398 _: &mut Self::RequestLayoutState,
6399 window: &mut Window,
6400 cx: &mut App,
6401 ) -> Self::PrepaintState {
6402 let text_style = TextStyleRefinement {
6403 font_size: Some(self.style.text.font_size),
6404 line_height: Some(self.style.text.line_height),
6405 ..Default::default()
6406 };
6407 let focus_handle = self.editor.focus_handle(cx);
6408 window.set_view_id(self.editor.entity_id());
6409 window.set_focus_handle(&focus_handle, cx);
6410
6411 let rem_size = self.rem_size(cx);
6412 window.with_rem_size(rem_size, |window| {
6413 window.with_text_style(Some(text_style), |window| {
6414 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6415 let mut snapshot = self
6416 .editor
6417 .update(cx, |editor, cx| editor.snapshot(window, cx));
6418 let style = self.style.clone();
6419
6420 let font_id = window.text_system().resolve_font(&style.text.font());
6421 let font_size = style.text.font_size.to_pixels(window.rem_size());
6422 let line_height = style.text.line_height_in_pixels(window.rem_size());
6423 let em_width = window
6424 .text_system()
6425 .typographic_bounds(font_id, font_size, 'm')
6426 .unwrap()
6427 .size
6428 .width;
6429 let em_advance = window
6430 .text_system()
6431 .advance(font_id, font_size, 'm')
6432 .unwrap()
6433 .width;
6434
6435 let letter_size = size(em_width, line_height);
6436
6437 let gutter_dimensions = snapshot.gutter_dimensions(
6438 font_id,
6439 font_size,
6440 em_width,
6441 em_advance,
6442 self.max_line_number_width(&snapshot, window, cx),
6443 cx,
6444 );
6445 let text_width = bounds.size.width - gutter_dimensions.width;
6446
6447 let editor_width = text_width - gutter_dimensions.margin - em_width;
6448
6449 snapshot = self.editor.update(cx, |editor, cx| {
6450 editor.last_bounds = Some(bounds);
6451 editor.gutter_dimensions = gutter_dimensions;
6452 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6453
6454 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6455 snapshot
6456 } else {
6457 let wrap_width = match editor.soft_wrap_mode(cx) {
6458 SoftWrap::GitDiff => None,
6459 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6460 SoftWrap::EditorWidth => Some(editor_width),
6461 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6462 SoftWrap::Bounded(column) => {
6463 Some(editor_width.min(column as f32 * em_advance))
6464 }
6465 };
6466
6467 if editor.set_wrap_width(wrap_width, cx) {
6468 editor.snapshot(window, cx)
6469 } else {
6470 snapshot
6471 }
6472 }
6473 });
6474
6475 let wrap_guides = self
6476 .editor
6477 .read(cx)
6478 .wrap_guides(cx)
6479 .iter()
6480 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6481 .collect::<SmallVec<[_; 2]>>();
6482
6483 let hitbox = window.insert_hitbox(bounds, false);
6484 let gutter_hitbox =
6485 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6486 let text_hitbox = window.insert_hitbox(
6487 Bounds {
6488 origin: gutter_hitbox.top_right(),
6489 size: size(text_width, bounds.size.height),
6490 },
6491 false,
6492 );
6493 // Offset the content_bounds from the text_bounds by the gutter margin (which
6494 // is roughly half a character wide) to make hit testing work more like how we want.
6495 let content_origin =
6496 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6497
6498 let scrollbar_bounds =
6499 Bounds::from_corners(content_origin, bounds.bottom_right());
6500
6501 let height_in_lines = scrollbar_bounds.size.height / line_height;
6502
6503 // NOTE: The max row number in the current file, minus one
6504 let max_row = snapshot.max_point().row().as_f32();
6505
6506 // NOTE: The max scroll position for the top of the window
6507 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6508 (max_row - height_in_lines + 1.).max(0.)
6509 } else {
6510 let settings = EditorSettings::get_global(cx);
6511 match settings.scroll_beyond_last_line {
6512 ScrollBeyondLastLine::OnePage => max_row,
6513 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6514 ScrollBeyondLastLine::VerticalScrollMargin => {
6515 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6516 .max(0.)
6517 }
6518 }
6519 };
6520
6521 // TODO: Autoscrolling for both axes
6522 let mut autoscroll_request = None;
6523 let mut autoscroll_containing_element = false;
6524 let mut autoscroll_horizontally = false;
6525 self.editor.update(cx, |editor, cx| {
6526 autoscroll_request = editor.autoscroll_request();
6527 autoscroll_containing_element =
6528 autoscroll_request.is_some() || editor.has_pending_selection();
6529 // TODO: Is this horizontal or vertical?!
6530 autoscroll_horizontally = editor.autoscroll_vertically(
6531 bounds,
6532 line_height,
6533 max_scroll_top,
6534 window,
6535 cx,
6536 );
6537 snapshot = editor.snapshot(window, cx);
6538 });
6539
6540 let mut scroll_position = snapshot.scroll_position();
6541 // The scroll position is a fractional point, the whole number of which represents
6542 // the top of the window in terms of display rows.
6543 let start_row = DisplayRow(scroll_position.y as u32);
6544 let max_row = snapshot.max_point().row();
6545 let end_row = cmp::min(
6546 (scroll_position.y + height_in_lines).ceil() as u32,
6547 max_row.next_row().0,
6548 );
6549 let end_row = DisplayRow(end_row);
6550
6551 let row_infos = snapshot
6552 .row_infos(start_row)
6553 .take((start_row..end_row).len())
6554 .collect::<Vec<RowInfo>>();
6555 let is_row_soft_wrapped = |row: usize| {
6556 row_infos
6557 .get(row)
6558 .map_or(true, |info| info.buffer_row.is_none())
6559 };
6560
6561 let start_anchor = if start_row == Default::default() {
6562 Anchor::min()
6563 } else {
6564 snapshot.buffer_snapshot.anchor_before(
6565 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6566 )
6567 };
6568 let end_anchor = if end_row > max_row {
6569 Anchor::max()
6570 } else {
6571 snapshot.buffer_snapshot.anchor_before(
6572 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6573 )
6574 };
6575
6576 let mut highlighted_rows = self
6577 .editor
6578 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6579
6580 for (ix, row_info) in row_infos.iter().enumerate() {
6581 let color = match row_info.diff_status {
6582 Some(DiffHunkStatus::Added) => style.status.created_background,
6583 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6584 _ => continue,
6585 };
6586 highlighted_rows
6587 .entry(start_row + DisplayRow(ix as u32))
6588 .or_insert(color);
6589 }
6590
6591 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6592 start_anchor..end_anchor,
6593 &snapshot.display_snapshot,
6594 cx.theme().colors(),
6595 );
6596 let highlighted_gutter_ranges =
6597 self.editor.read(cx).gutter_highlights_in_range(
6598 start_anchor..end_anchor,
6599 &snapshot.display_snapshot,
6600 cx,
6601 );
6602
6603 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6604 start_anchor..end_anchor,
6605 &snapshot.display_snapshot,
6606 cx,
6607 );
6608
6609 let (local_selections, selected_buffer_ids): (
6610 Vec<Selection<Point>>,
6611 Vec<BufferId>,
6612 ) = self.editor.update(cx, |editor, cx| {
6613 let all_selections = editor.selections.all::<Point>(cx);
6614 let selected_buffer_ids = if editor.is_singleton(cx) {
6615 Vec::new()
6616 } else {
6617 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6618
6619 for selection in all_selections {
6620 for buffer_id in snapshot
6621 .buffer_snapshot
6622 .buffer_ids_for_range(selection.range())
6623 {
6624 if selected_buffer_ids.last() != Some(&buffer_id) {
6625 selected_buffer_ids.push(buffer_id);
6626 }
6627 }
6628 }
6629
6630 selected_buffer_ids
6631 };
6632
6633 let mut selections = editor
6634 .selections
6635 .disjoint_in_range(start_anchor..end_anchor, cx);
6636 selections.extend(editor.selections.pending(cx));
6637
6638 (selections, selected_buffer_ids)
6639 });
6640
6641 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6642 start_anchor,
6643 end_anchor,
6644 &local_selections,
6645 &snapshot,
6646 start_row,
6647 end_row,
6648 window,
6649 cx,
6650 );
6651
6652 let line_numbers = self.layout_line_numbers(
6653 Some(&gutter_hitbox),
6654 gutter_dimensions,
6655 line_height,
6656 scroll_position,
6657 start_row..end_row,
6658 &row_infos,
6659 newest_selection_head,
6660 &snapshot,
6661 window,
6662 cx,
6663 );
6664
6665 let mut crease_toggles =
6666 window.with_element_namespace("crease_toggles", |window| {
6667 self.layout_crease_toggles(
6668 start_row..end_row,
6669 &row_infos,
6670 &active_rows,
6671 &snapshot,
6672 window,
6673 cx,
6674 )
6675 });
6676 let crease_trailers =
6677 window.with_element_namespace("crease_trailers", |window| {
6678 self.layout_crease_trailers(
6679 row_infos.iter().copied(),
6680 &snapshot,
6681 window,
6682 cx,
6683 )
6684 });
6685
6686 let display_hunks = self.layout_gutter_diff_hunks(
6687 line_height,
6688 &gutter_hitbox,
6689 start_row..end_row,
6690 &snapshot,
6691 window,
6692 cx,
6693 );
6694
6695 let mut line_layouts = Self::layout_lines(
6696 start_row..end_row,
6697 &snapshot,
6698 &self.style,
6699 editor_width,
6700 is_row_soft_wrapped,
6701 window,
6702 cx,
6703 );
6704
6705 let longest_line_blame_width = self
6706 .editor
6707 .update(cx, |editor, cx| {
6708 if !editor.show_git_blame_inline {
6709 return None;
6710 }
6711 let blame = editor.blame.as_ref()?;
6712 let blame_entry = blame
6713 .update(cx, |blame, cx| {
6714 let row_infos =
6715 snapshot.row_infos(snapshot.longest_row()).next()?;
6716 blame.blame_for_rows(&[row_infos], cx).next()
6717 })
6718 .flatten()?;
6719 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
6720 let mut element = render_inline_blame_entry(
6721 blame,
6722 blame_entry,
6723 &style,
6724 workspace,
6725 cx,
6726 );
6727 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6728 Some(
6729 element
6730 .layout_as_root(AvailableSpace::min_size(), window, cx)
6731 .width
6732 + inline_blame_padding,
6733 )
6734 })
6735 .unwrap_or(Pixels::ZERO);
6736
6737 let longest_line_width = layout_line(
6738 snapshot.longest_row(),
6739 &snapshot,
6740 &style,
6741 editor_width,
6742 is_row_soft_wrapped,
6743 window,
6744 cx,
6745 )
6746 .width;
6747
6748 let scrollbar_range_data = ScrollbarRangeData::new(
6749 scrollbar_bounds,
6750 letter_size,
6751 &snapshot,
6752 longest_line_width,
6753 longest_line_blame_width,
6754 &style,
6755 cx,
6756 );
6757
6758 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6759 let mut scroll_width = scroll_range_bounds.size.width;
6760
6761 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6762 snapshot.sticky_header_excerpt(start_row)
6763 } else {
6764 None
6765 };
6766 let sticky_header_excerpt_id =
6767 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6768
6769 let blocks = window.with_element_namespace("blocks", |window| {
6770 self.render_blocks(
6771 start_row..end_row,
6772 &snapshot,
6773 &hitbox,
6774 &text_hitbox,
6775 editor_width,
6776 &mut scroll_width,
6777 &gutter_dimensions,
6778 em_width,
6779 gutter_dimensions.full_width(),
6780 line_height,
6781 &line_layouts,
6782 &local_selections,
6783 &selected_buffer_ids,
6784 is_row_soft_wrapped,
6785 sticky_header_excerpt_id,
6786 window,
6787 cx,
6788 )
6789 });
6790 let mut blocks = match blocks {
6791 Ok(blocks) => blocks,
6792 Err(resized_blocks) => {
6793 self.editor.update(cx, |editor, cx| {
6794 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6795 });
6796 return self.prepaint(None, bounds, &mut (), window, cx);
6797 }
6798 };
6799
6800 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6801 window.with_element_namespace("blocks", |window| {
6802 self.layout_sticky_buffer_header(
6803 sticky_header_excerpt,
6804 scroll_position.y,
6805 line_height,
6806 &snapshot,
6807 &hitbox,
6808 &selected_buffer_ids,
6809 window,
6810 cx,
6811 )
6812 })
6813 });
6814
6815 let start_buffer_row =
6816 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6817 let end_buffer_row =
6818 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6819
6820 let scroll_max = point(
6821 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6822 max_row.as_f32(),
6823 );
6824
6825 self.editor.update(cx, |editor, cx| {
6826 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6827
6828 let autoscrolled = if autoscroll_horizontally {
6829 editor.autoscroll_horizontally(
6830 start_row,
6831 editor_width - (letter_size.width / 2.0),
6832 scroll_width,
6833 em_width,
6834 &line_layouts,
6835 cx,
6836 )
6837 } else {
6838 false
6839 };
6840
6841 if clamped || autoscrolled {
6842 snapshot = editor.snapshot(window, cx);
6843 scroll_position = snapshot.scroll_position();
6844 }
6845 });
6846
6847 let scroll_pixel_position = point(
6848 scroll_position.x * em_width,
6849 scroll_position.y * line_height,
6850 );
6851
6852 let indent_guides = self.layout_indent_guides(
6853 content_origin,
6854 text_hitbox.origin,
6855 start_buffer_row..end_buffer_row,
6856 scroll_pixel_position,
6857 line_height,
6858 &snapshot,
6859 window,
6860 cx,
6861 );
6862
6863 let crease_trailers =
6864 window.with_element_namespace("crease_trailers", |window| {
6865 self.prepaint_crease_trailers(
6866 crease_trailers,
6867 &line_layouts,
6868 line_height,
6869 content_origin,
6870 scroll_pixel_position,
6871 em_width,
6872 window,
6873 cx,
6874 )
6875 });
6876
6877 let mut inline_blame = None;
6878 if let Some(newest_selection_head) = newest_selection_head {
6879 let display_row = newest_selection_head.row();
6880 if (start_row..end_row).contains(&display_row) {
6881 let line_ix = display_row.minus(start_row) as usize;
6882 let row_info = &row_infos[line_ix];
6883 let line_layout = &line_layouts[line_ix];
6884 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
6885 inline_blame = self.layout_inline_blame(
6886 display_row,
6887 row_info,
6888 line_layout,
6889 crease_trailer_layout,
6890 em_width,
6891 content_origin,
6892 scroll_pixel_position,
6893 line_height,
6894 window,
6895 cx,
6896 );
6897 }
6898 }
6899
6900 let blamed_display_rows = self.layout_blame_entries(
6901 &row_infos,
6902 em_width,
6903 scroll_position,
6904 line_height,
6905 &gutter_hitbox,
6906 gutter_dimensions.git_blame_entries_width,
6907 window,
6908 cx,
6909 );
6910
6911 let scroll_max = point(
6912 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6913 max_scroll_top,
6914 );
6915
6916 self.editor.update(cx, |editor, cx| {
6917 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6918
6919 let autoscrolled = if autoscroll_horizontally {
6920 editor.autoscroll_horizontally(
6921 start_row,
6922 editor_width - (letter_size.width / 2.0),
6923 scroll_width,
6924 em_width,
6925 &line_layouts,
6926 cx,
6927 )
6928 } else {
6929 false
6930 };
6931
6932 if clamped || autoscrolled {
6933 snapshot = editor.snapshot(window, cx);
6934 scroll_position = snapshot.scroll_position();
6935 }
6936 });
6937
6938 let line_elements = self.prepaint_lines(
6939 start_row,
6940 &mut line_layouts,
6941 line_height,
6942 scroll_pixel_position,
6943 content_origin,
6944 window,
6945 cx,
6946 );
6947
6948 let mut block_start_rows = HashSet::default();
6949
6950 window.with_element_namespace("blocks", |window| {
6951 self.layout_blocks(
6952 &mut blocks,
6953 &mut block_start_rows,
6954 &hitbox,
6955 line_height,
6956 scroll_pixel_position,
6957 window,
6958 cx,
6959 );
6960 });
6961
6962 let cursors = self.collect_cursors(&snapshot, cx);
6963 let visible_row_range = start_row..end_row;
6964 let non_visible_cursors = cursors
6965 .iter()
6966 .any(move |c| !visible_row_range.contains(&c.0.row()));
6967
6968 let visible_cursors = self.layout_visible_cursors(
6969 &snapshot,
6970 &selections,
6971 &block_start_rows,
6972 start_row..end_row,
6973 &line_layouts,
6974 &text_hitbox,
6975 content_origin,
6976 scroll_position,
6977 scroll_pixel_position,
6978 line_height,
6979 em_width,
6980 em_advance,
6981 autoscroll_containing_element,
6982 window,
6983 cx,
6984 );
6985
6986 let scrollbars_layout = self.layout_scrollbars(
6987 &snapshot,
6988 scrollbar_range_data,
6989 scroll_position,
6990 non_visible_cursors,
6991 window,
6992 cx,
6993 );
6994
6995 let gutter_settings = EditorSettings::get_global(cx).gutter;
6996
6997 let rows_with_hunk_bounds = display_hunks
6998 .iter()
6999 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7000 .fold(
7001 HashMap::default(),
7002 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7003 match hunk {
7004 DisplayDiffHunk::Folded { display_row } => {
7005 rows_with_hunk_bounds.insert(*display_row, bounds);
7006 }
7007 DisplayDiffHunk::Unfolded {
7008 display_row_range, ..
7009 } => {
7010 for display_row in display_row_range.iter_rows() {
7011 rows_with_hunk_bounds.insert(display_row, bounds);
7012 }
7013 }
7014 }
7015 rows_with_hunk_bounds
7016 },
7017 );
7018 let mut code_actions_indicator = None;
7019 if let Some(newest_selection_head) = newest_selection_head {
7020 if (start_row..end_row).contains(&newest_selection_head.row()) {
7021 self.layout_context_menu(
7022 line_height,
7023 &text_hitbox,
7024 content_origin,
7025 start_row,
7026 scroll_pixel_position,
7027 &line_layouts,
7028 newest_selection_head,
7029 gutter_dimensions.width - gutter_dimensions.left_padding,
7030 window,
7031 cx,
7032 );
7033
7034 let show_code_actions = snapshot
7035 .show_code_actions
7036 .unwrap_or(gutter_settings.code_actions);
7037 if show_code_actions {
7038 let newest_selection_point =
7039 newest_selection_head.to_point(&snapshot.display_snapshot);
7040 if !snapshot
7041 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7042 {
7043 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7044 MultiBufferRow(newest_selection_point.row),
7045 );
7046 if let Some((buffer, range)) = buffer {
7047 let buffer_id = buffer.remote_id();
7048 let row = range.start.row;
7049 let has_test_indicator = self
7050 .editor
7051 .read(cx)
7052 .tasks
7053 .contains_key(&(buffer_id, row));
7054
7055 if !has_test_indicator {
7056 code_actions_indicator = self
7057 .layout_code_actions_indicator(
7058 line_height,
7059 newest_selection_head,
7060 scroll_pixel_position,
7061 &gutter_dimensions,
7062 &gutter_hitbox,
7063 &rows_with_hunk_bounds,
7064 window,
7065 cx,
7066 );
7067 }
7068 }
7069 }
7070 }
7071 }
7072 }
7073
7074 let test_indicators = if gutter_settings.runnables {
7075 self.layout_run_indicators(
7076 line_height,
7077 start_row..end_row,
7078 scroll_pixel_position,
7079 &gutter_dimensions,
7080 &gutter_hitbox,
7081 &rows_with_hunk_bounds,
7082 &snapshot,
7083 window,
7084 cx,
7085 )
7086 } else {
7087 Vec::new()
7088 };
7089
7090 self.layout_signature_help(
7091 &hitbox,
7092 content_origin,
7093 scroll_pixel_position,
7094 newest_selection_head,
7095 start_row,
7096 &line_layouts,
7097 line_height,
7098 em_width,
7099 window,
7100 cx,
7101 );
7102
7103 if !cx.has_active_drag() {
7104 self.layout_hover_popovers(
7105 &snapshot,
7106 &hitbox,
7107 &text_hitbox,
7108 start_row..end_row,
7109 content_origin,
7110 scroll_pixel_position,
7111 &line_layouts,
7112 line_height,
7113 em_width,
7114 window,
7115 cx,
7116 );
7117 }
7118
7119 let inline_completion_popover = self.layout_inline_completion_popover(
7120 &text_hitbox.bounds,
7121 &snapshot,
7122 start_row..end_row,
7123 scroll_position.y,
7124 scroll_position.y + height_in_lines,
7125 &line_layouts,
7126 line_height,
7127 scroll_pixel_position,
7128 newest_selection_head,
7129 editor_width,
7130 &style,
7131 window,
7132 cx,
7133 );
7134
7135 let mouse_context_menu = self.layout_mouse_context_menu(
7136 &snapshot,
7137 start_row..end_row,
7138 content_origin,
7139 window,
7140 cx,
7141 );
7142
7143 window.with_element_namespace("crease_toggles", |window| {
7144 self.prepaint_crease_toggles(
7145 &mut crease_toggles,
7146 line_height,
7147 &gutter_dimensions,
7148 gutter_settings,
7149 scroll_pixel_position,
7150 &gutter_hitbox,
7151 window,
7152 cx,
7153 )
7154 });
7155
7156 let invisible_symbol_font_size = font_size / 2.;
7157 let tab_invisible = window
7158 .text_system()
7159 .shape_line(
7160 "→".into(),
7161 invisible_symbol_font_size,
7162 &[TextRun {
7163 len: "→".len(),
7164 font: self.style.text.font(),
7165 color: cx.theme().colors().editor_invisible,
7166 background_color: None,
7167 underline: None,
7168 strikethrough: None,
7169 }],
7170 )
7171 .unwrap();
7172 let space_invisible = window
7173 .text_system()
7174 .shape_line(
7175 "•".into(),
7176 invisible_symbol_font_size,
7177 &[TextRun {
7178 len: "•".len(),
7179 font: self.style.text.font(),
7180 color: cx.theme().colors().editor_invisible,
7181 background_color: None,
7182 underline: None,
7183 strikethrough: None,
7184 }],
7185 )
7186 .unwrap();
7187
7188 let mode = snapshot.mode;
7189
7190 let position_map = Rc::new(PositionMap {
7191 size: bounds.size,
7192 scroll_pixel_position,
7193 scroll_max,
7194 line_layouts,
7195 line_height,
7196 em_width,
7197 em_advance,
7198 snapshot,
7199 });
7200
7201 let hunk_controls = self.layout_diff_hunk_controls(
7202 start_row..end_row,
7203 &row_infos,
7204 &text_hitbox,
7205 &position_map,
7206 newest_selection_head,
7207 line_height,
7208 scroll_pixel_position,
7209 &display_hunks,
7210 self.editor.clone(),
7211 window,
7212 cx,
7213 );
7214
7215 EditorLayout {
7216 mode,
7217 position_map,
7218 visible_display_row_range: start_row..end_row,
7219 wrap_guides,
7220 indent_guides,
7221 hitbox,
7222 text_hitbox,
7223 gutter_hitbox,
7224 display_hunks,
7225 content_origin,
7226 scrollbars_layout,
7227 active_rows,
7228 highlighted_rows,
7229 highlighted_ranges,
7230 highlighted_gutter_ranges,
7231 redacted_ranges,
7232 line_elements,
7233 line_numbers,
7234 blamed_display_rows,
7235 inline_blame,
7236 blocks,
7237 cursors,
7238 visible_cursors,
7239 selections,
7240 inline_completion_popover,
7241 diff_hunk_controls: hunk_controls,
7242 mouse_context_menu,
7243 test_indicators,
7244 code_actions_indicator,
7245 crease_toggles,
7246 crease_trailers,
7247 tab_invisible,
7248 space_invisible,
7249 sticky_buffer_header,
7250 }
7251 })
7252 })
7253 })
7254 }
7255
7256 fn paint(
7257 &mut self,
7258 _: Option<&GlobalElementId>,
7259 bounds: Bounds<gpui::Pixels>,
7260 _: &mut Self::RequestLayoutState,
7261 layout: &mut Self::PrepaintState,
7262 window: &mut Window,
7263 cx: &mut App,
7264 ) {
7265 let focus_handle = self.editor.focus_handle(cx);
7266 let key_context = self
7267 .editor
7268 .update(cx, |editor, cx| editor.key_context(window, cx));
7269
7270 window.set_key_context(key_context);
7271 window.handle_input(
7272 &focus_handle,
7273 ElementInputHandler::new(bounds, self.editor.clone()),
7274 cx,
7275 );
7276 self.register_actions(window, cx);
7277 self.register_key_listeners(window, cx, layout);
7278
7279 let text_style = TextStyleRefinement {
7280 font_size: Some(self.style.text.font_size),
7281 line_height: Some(self.style.text.line_height),
7282 ..Default::default()
7283 };
7284 let rem_size = self.rem_size(cx);
7285 window.with_rem_size(rem_size, |window| {
7286 window.with_text_style(Some(text_style), |window| {
7287 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7288 self.paint_mouse_listeners(layout, window, cx);
7289 self.paint_background(layout, window, cx);
7290 self.paint_indent_guides(layout, window, cx);
7291
7292 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7293 self.paint_blamed_display_rows(layout, window, cx);
7294 self.paint_line_numbers(layout, window, cx);
7295 }
7296
7297 self.paint_text(layout, window, cx);
7298
7299 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7300 self.paint_gutter_highlights(layout, window, cx);
7301 self.paint_gutter_indicators(layout, window, cx);
7302 }
7303
7304 if !layout.blocks.is_empty() {
7305 window.with_element_namespace("blocks", |window| {
7306 self.paint_blocks(layout, window, cx);
7307 });
7308 }
7309
7310 window.with_element_namespace("blocks", |window| {
7311 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7312 sticky_header.paint(window, cx)
7313 }
7314 });
7315
7316 self.paint_scrollbars(layout, window, cx);
7317 self.paint_inline_completion_popover(layout, window, cx);
7318 self.paint_mouse_context_menu(layout, window, cx);
7319 });
7320 })
7321 })
7322 }
7323}
7324
7325pub(super) fn gutter_bounds(
7326 editor_bounds: Bounds<Pixels>,
7327 gutter_dimensions: GutterDimensions,
7328) -> Bounds<Pixels> {
7329 Bounds {
7330 origin: editor_bounds.origin,
7331 size: size(gutter_dimensions.width, editor_bounds.size.height),
7332 }
7333}
7334
7335struct ScrollbarRangeData {
7336 scrollbar_bounds: Bounds<Pixels>,
7337 scroll_range: Bounds<Pixels>,
7338 letter_size: Size<Pixels>,
7339}
7340
7341impl ScrollbarRangeData {
7342 pub fn new(
7343 scrollbar_bounds: Bounds<Pixels>,
7344 letter_size: Size<Pixels>,
7345 snapshot: &EditorSnapshot,
7346 longest_line_width: Pixels,
7347 longest_line_blame_width: Pixels,
7348 style: &EditorStyle,
7349
7350 cx: &mut App,
7351 ) -> ScrollbarRangeData {
7352 // TODO: Simplify this function down, it requires a lot of parameters
7353 let max_row = snapshot.max_point().row();
7354 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7355
7356 let scrollbar_width = style.scrollbar_width;
7357
7358 let settings = EditorSettings::get_global(cx);
7359 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7360 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7361 ScrollBeyondLastLine::Off => px(1.),
7362 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7363 };
7364
7365 let overscroll = size(
7366 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7367 letter_size.height * scroll_beyond_last_line,
7368 );
7369
7370 let scroll_range = Bounds {
7371 origin: scrollbar_bounds.origin,
7372 size: text_bounds_size + overscroll,
7373 };
7374
7375 ScrollbarRangeData {
7376 scrollbar_bounds,
7377 scroll_range,
7378 letter_size,
7379 }
7380 }
7381}
7382
7383impl IntoElement for EditorElement {
7384 type Element = Self;
7385
7386 fn into_element(self) -> Self::Element {
7387 self
7388 }
7389}
7390
7391pub struct EditorLayout {
7392 position_map: Rc<PositionMap>,
7393 hitbox: Hitbox,
7394 text_hitbox: Hitbox,
7395 gutter_hitbox: Hitbox,
7396 content_origin: gpui::Point<Pixels>,
7397 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7398 mode: EditorMode,
7399 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7400 indent_guides: Option<Vec<IndentGuideLayout>>,
7401 visible_display_row_range: Range<DisplayRow>,
7402 active_rows: BTreeMap<DisplayRow, bool>,
7403 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7404 line_elements: SmallVec<[AnyElement; 1]>,
7405 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7406 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7407 blamed_display_rows: Option<Vec<AnyElement>>,
7408 inline_blame: Option<AnyElement>,
7409 blocks: Vec<BlockLayout>,
7410 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7411 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7412 redacted_ranges: Vec<Range<DisplayPoint>>,
7413 cursors: Vec<(DisplayPoint, Hsla)>,
7414 visible_cursors: Vec<CursorLayout>,
7415 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7416 code_actions_indicator: Option<AnyElement>,
7417 test_indicators: Vec<AnyElement>,
7418 crease_toggles: Vec<Option<AnyElement>>,
7419 diff_hunk_controls: Vec<AnyElement>,
7420 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7421 inline_completion_popover: Option<AnyElement>,
7422 mouse_context_menu: Option<AnyElement>,
7423 tab_invisible: ShapedLine,
7424 space_invisible: ShapedLine,
7425 sticky_buffer_header: Option<AnyElement>,
7426}
7427
7428impl EditorLayout {
7429 fn line_end_overshoot(&self) -> Pixels {
7430 0.15 * self.position_map.line_height
7431 }
7432}
7433
7434struct LineNumberLayout {
7435 shaped_line: ShapedLine,
7436 hitbox: Option<Hitbox>,
7437 display_row: DisplayRow,
7438}
7439
7440struct ColoredRange<T> {
7441 start: T,
7442 end: T,
7443 color: Hsla,
7444}
7445
7446#[derive(Clone)]
7447struct ScrollbarLayout {
7448 hitbox: Hitbox,
7449 visible_range: Range<f32>,
7450 visible: bool,
7451 text_unit_size: Pixels,
7452 thumb_size: Pixels,
7453 axis: Axis,
7454}
7455
7456impl ScrollbarLayout {
7457 const BORDER_WIDTH: Pixels = px(1.0);
7458 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7459 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7460 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7461
7462 fn thumb_bounds(&self) -> Bounds<Pixels> {
7463 match self.axis {
7464 Axis::Vertical => {
7465 let thumb_top = self.y_for_row(self.visible_range.start);
7466 let thumb_bottom = thumb_top + self.thumb_size;
7467 Bounds::from_corners(
7468 point(self.hitbox.left(), thumb_top),
7469 point(self.hitbox.right(), thumb_bottom),
7470 )
7471 }
7472 Axis::Horizontal => {
7473 let thumb_left =
7474 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7475 let thumb_right = thumb_left + self.thumb_size;
7476 Bounds::from_corners(
7477 point(thumb_left, self.hitbox.top()),
7478 point(thumb_right, self.hitbox.bottom()),
7479 )
7480 }
7481 }
7482 }
7483
7484 fn y_for_row(&self, row: f32) -> Pixels {
7485 self.hitbox.top() + row * self.text_unit_size
7486 }
7487
7488 fn marker_quads_for_ranges(
7489 &self,
7490 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7491 column: Option<usize>,
7492 ) -> Vec<PaintQuad> {
7493 struct MinMax {
7494 min: Pixels,
7495 max: Pixels,
7496 }
7497 let (x_range, height_limit) = if let Some(column) = column {
7498 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7499 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7500 let end = start + column_width;
7501 (
7502 Range { start, end },
7503 MinMax {
7504 min: Self::MIN_MARKER_HEIGHT,
7505 max: px(f32::MAX),
7506 },
7507 )
7508 } else {
7509 (
7510 Range {
7511 start: Self::BORDER_WIDTH,
7512 end: self.hitbox.size.width,
7513 },
7514 MinMax {
7515 min: Self::LINE_MARKER_HEIGHT,
7516 max: Self::LINE_MARKER_HEIGHT,
7517 },
7518 )
7519 };
7520
7521 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7522 let mut pixel_ranges = row_ranges
7523 .into_iter()
7524 .map(|range| {
7525 let start_y = row_to_y(range.start);
7526 let end_y = row_to_y(range.end)
7527 + self
7528 .text_unit_size
7529 .max(height_limit.min)
7530 .min(height_limit.max);
7531 ColoredRange {
7532 start: start_y,
7533 end: end_y,
7534 color: range.color,
7535 }
7536 })
7537 .peekable();
7538
7539 let mut quads = Vec::new();
7540 while let Some(mut pixel_range) = pixel_ranges.next() {
7541 while let Some(next_pixel_range) = pixel_ranges.peek() {
7542 if pixel_range.end >= next_pixel_range.start - px(1.0)
7543 && pixel_range.color == next_pixel_range.color
7544 {
7545 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7546 pixel_ranges.next();
7547 } else {
7548 break;
7549 }
7550 }
7551
7552 let bounds = Bounds::from_corners(
7553 point(x_range.start, pixel_range.start),
7554 point(x_range.end, pixel_range.end),
7555 );
7556 quads.push(quad(
7557 bounds,
7558 Corners::default(),
7559 pixel_range.color,
7560 Edges::default(),
7561 Hsla::transparent_black(),
7562 ));
7563 }
7564
7565 quads
7566 }
7567}
7568
7569struct CreaseTrailerLayout {
7570 element: AnyElement,
7571 bounds: Bounds<Pixels>,
7572}
7573
7574struct PositionMap {
7575 size: Size<Pixels>,
7576 line_height: Pixels,
7577 scroll_pixel_position: gpui::Point<Pixels>,
7578 scroll_max: gpui::Point<f32>,
7579 em_width: Pixels,
7580 em_advance: Pixels,
7581 line_layouts: Vec<LineWithInvisibles>,
7582 snapshot: EditorSnapshot,
7583}
7584
7585#[derive(Debug, Copy, Clone)]
7586pub struct PointForPosition {
7587 pub previous_valid: DisplayPoint,
7588 pub next_valid: DisplayPoint,
7589 pub exact_unclipped: DisplayPoint,
7590 pub column_overshoot_after_line_end: u32,
7591}
7592
7593impl PointForPosition {
7594 pub fn as_valid(&self) -> Option<DisplayPoint> {
7595 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7596 Some(self.previous_valid)
7597 } else {
7598 None
7599 }
7600 }
7601}
7602
7603impl PositionMap {
7604 fn point_for_position(
7605 &self,
7606 text_bounds: Bounds<Pixels>,
7607 position: gpui::Point<Pixels>,
7608 ) -> PointForPosition {
7609 let scroll_position = self.snapshot.scroll_position();
7610 let position = position - text_bounds.origin;
7611 let y = position.y.max(px(0.)).min(self.size.height);
7612 let x = position.x + (scroll_position.x * self.em_width);
7613 let row = ((y / self.line_height) + scroll_position.y) as u32;
7614
7615 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7616 .line_layouts
7617 .get(row as usize - scroll_position.y as usize)
7618 {
7619 if let Some(ix) = line.index_for_x(x) {
7620 (ix as u32, px(0.))
7621 } else {
7622 (line.len as u32, px(0.).max(x - line.width))
7623 }
7624 } else {
7625 (0, x)
7626 };
7627
7628 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7629 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7630 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7631
7632 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7633 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7634 PointForPosition {
7635 previous_valid,
7636 next_valid,
7637 exact_unclipped,
7638 column_overshoot_after_line_end,
7639 }
7640 }
7641}
7642
7643struct BlockLayout {
7644 id: BlockId,
7645 row: Option<DisplayRow>,
7646 element: AnyElement,
7647 available_space: Size<AvailableSpace>,
7648 style: BlockStyle,
7649}
7650
7651fn layout_line(
7652 row: DisplayRow,
7653 snapshot: &EditorSnapshot,
7654 style: &EditorStyle,
7655 text_width: Pixels,
7656 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7657 window: &mut Window,
7658 cx: &mut App,
7659) -> LineWithInvisibles {
7660 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7661 LineWithInvisibles::from_chunks(
7662 chunks,
7663 &style,
7664 MAX_LINE_LEN,
7665 1,
7666 snapshot.mode,
7667 text_width,
7668 is_row_soft_wrapped,
7669 window,
7670 cx,
7671 )
7672 .pop()
7673 .unwrap()
7674}
7675
7676#[derive(Debug)]
7677pub struct IndentGuideLayout {
7678 origin: gpui::Point<Pixels>,
7679 length: Pixels,
7680 single_indent_width: Pixels,
7681 depth: u32,
7682 active: bool,
7683 settings: IndentGuideSettings,
7684}
7685
7686pub struct CursorLayout {
7687 origin: gpui::Point<Pixels>,
7688 block_width: Pixels,
7689 line_height: Pixels,
7690 color: Hsla,
7691 shape: CursorShape,
7692 block_text: Option<ShapedLine>,
7693 cursor_name: Option<AnyElement>,
7694}
7695
7696#[derive(Debug)]
7697pub struct CursorName {
7698 string: SharedString,
7699 color: Hsla,
7700 is_top_row: bool,
7701}
7702
7703impl CursorLayout {
7704 pub fn new(
7705 origin: gpui::Point<Pixels>,
7706 block_width: Pixels,
7707 line_height: Pixels,
7708 color: Hsla,
7709 shape: CursorShape,
7710 block_text: Option<ShapedLine>,
7711 ) -> CursorLayout {
7712 CursorLayout {
7713 origin,
7714 block_width,
7715 line_height,
7716 color,
7717 shape,
7718 block_text,
7719 cursor_name: None,
7720 }
7721 }
7722
7723 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7724 Bounds {
7725 origin: self.origin + origin,
7726 size: size(self.block_width, self.line_height),
7727 }
7728 }
7729
7730 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7731 match self.shape {
7732 CursorShape::Bar => Bounds {
7733 origin: self.origin + origin,
7734 size: size(px(2.0), self.line_height),
7735 },
7736 CursorShape::Block | CursorShape::Hollow => Bounds {
7737 origin: self.origin + origin,
7738 size: size(self.block_width, self.line_height),
7739 },
7740 CursorShape::Underline => Bounds {
7741 origin: self.origin
7742 + origin
7743 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7744 size: size(self.block_width, px(2.0)),
7745 },
7746 }
7747 }
7748
7749 pub fn layout(
7750 &mut self,
7751 origin: gpui::Point<Pixels>,
7752 cursor_name: Option<CursorName>,
7753 window: &mut Window,
7754 cx: &mut App,
7755 ) {
7756 if let Some(cursor_name) = cursor_name {
7757 let bounds = self.bounds(origin);
7758 let text_size = self.line_height / 1.5;
7759
7760 let name_origin = if cursor_name.is_top_row {
7761 point(bounds.right() - px(1.), bounds.top())
7762 } else {
7763 match self.shape {
7764 CursorShape::Bar => point(
7765 bounds.right() - px(2.),
7766 bounds.top() - text_size / 2. - px(1.),
7767 ),
7768 _ => point(
7769 bounds.right() - px(1.),
7770 bounds.top() - text_size / 2. - px(1.),
7771 ),
7772 }
7773 };
7774 let mut name_element = div()
7775 .bg(self.color)
7776 .text_size(text_size)
7777 .px_0p5()
7778 .line_height(text_size + px(2.))
7779 .text_color(cursor_name.color)
7780 .child(cursor_name.string.clone())
7781 .into_any_element();
7782
7783 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
7784
7785 self.cursor_name = Some(name_element);
7786 }
7787 }
7788
7789 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
7790 let bounds = self.bounds(origin);
7791
7792 //Draw background or border quad
7793 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7794 outline(bounds, self.color)
7795 } else {
7796 fill(bounds, self.color)
7797 };
7798
7799 if let Some(name) = &mut self.cursor_name {
7800 name.paint(window, cx);
7801 }
7802
7803 window.paint_quad(cursor);
7804
7805 if let Some(block_text) = &self.block_text {
7806 block_text
7807 .paint(self.origin + origin, self.line_height, window, cx)
7808 .log_err();
7809 }
7810 }
7811
7812 pub fn shape(&self) -> CursorShape {
7813 self.shape
7814 }
7815}
7816
7817#[derive(Debug)]
7818pub struct HighlightedRange {
7819 pub start_y: Pixels,
7820 pub line_height: Pixels,
7821 pub lines: Vec<HighlightedRangeLine>,
7822 pub color: Hsla,
7823 pub corner_radius: Pixels,
7824}
7825
7826#[derive(Debug)]
7827pub struct HighlightedRangeLine {
7828 pub start_x: Pixels,
7829 pub end_x: Pixels,
7830}
7831
7832impl HighlightedRange {
7833 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
7834 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
7835 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
7836 self.paint_lines(
7837 self.start_y + self.line_height,
7838 &self.lines[1..],
7839 bounds,
7840 window,
7841 );
7842 } else {
7843 self.paint_lines(self.start_y, &self.lines, bounds, window);
7844 }
7845 }
7846
7847 fn paint_lines(
7848 &self,
7849 start_y: Pixels,
7850 lines: &[HighlightedRangeLine],
7851 _bounds: Bounds<Pixels>,
7852 window: &mut Window,
7853 ) {
7854 if lines.is_empty() {
7855 return;
7856 }
7857
7858 let first_line = lines.first().unwrap();
7859 let last_line = lines.last().unwrap();
7860
7861 let first_top_left = point(first_line.start_x, start_y);
7862 let first_top_right = point(first_line.end_x, start_y);
7863
7864 let curve_height = point(Pixels::ZERO, self.corner_radius);
7865 let curve_width = |start_x: Pixels, end_x: Pixels| {
7866 let max = (end_x - start_x) / 2.;
7867 let width = if max < self.corner_radius {
7868 max
7869 } else {
7870 self.corner_radius
7871 };
7872
7873 point(width, Pixels::ZERO)
7874 };
7875
7876 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
7877 let mut builder = gpui::PathBuilder::fill();
7878 builder.curve_to(first_top_right + curve_height, first_top_right);
7879
7880 let mut iter = lines.iter().enumerate().peekable();
7881 while let Some((ix, line)) = iter.next() {
7882 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
7883
7884 if let Some((_, next_line)) = iter.peek() {
7885 let next_top_right = point(next_line.end_x, bottom_right.y);
7886
7887 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
7888 Ordering::Equal => {
7889 builder.line_to(bottom_right);
7890 }
7891 Ordering::Less => {
7892 let curve_width = curve_width(next_top_right.x, bottom_right.x);
7893 builder.line_to(bottom_right - curve_height);
7894 if self.corner_radius > Pixels::ZERO {
7895 builder.curve_to(bottom_right - curve_width, bottom_right);
7896 }
7897 builder.line_to(next_top_right + curve_width);
7898 if self.corner_radius > Pixels::ZERO {
7899 builder.curve_to(next_top_right + curve_height, next_top_right);
7900 }
7901 }
7902 Ordering::Greater => {
7903 let curve_width = curve_width(bottom_right.x, next_top_right.x);
7904 builder.line_to(bottom_right - curve_height);
7905 if self.corner_radius > Pixels::ZERO {
7906 builder.curve_to(bottom_right + curve_width, bottom_right);
7907 }
7908 builder.line_to(next_top_right - curve_width);
7909 if self.corner_radius > Pixels::ZERO {
7910 builder.curve_to(next_top_right + curve_height, next_top_right);
7911 }
7912 }
7913 }
7914 } else {
7915 let curve_width = curve_width(line.start_x, line.end_x);
7916 builder.line_to(bottom_right - curve_height);
7917 if self.corner_radius > Pixels::ZERO {
7918 builder.curve_to(bottom_right - curve_width, bottom_right);
7919 }
7920
7921 let bottom_left = point(line.start_x, bottom_right.y);
7922 builder.line_to(bottom_left + curve_width);
7923 if self.corner_radius > Pixels::ZERO {
7924 builder.curve_to(bottom_left - curve_height, bottom_left);
7925 }
7926 }
7927 }
7928
7929 if first_line.start_x > last_line.start_x {
7930 let curve_width = curve_width(last_line.start_x, first_line.start_x);
7931 let second_top_left = point(last_line.start_x, start_y + self.line_height);
7932 builder.line_to(second_top_left + curve_height);
7933 if self.corner_radius > Pixels::ZERO {
7934 builder.curve_to(second_top_left + curve_width, second_top_left);
7935 }
7936 let first_bottom_left = point(first_line.start_x, second_top_left.y);
7937 builder.line_to(first_bottom_left - curve_width);
7938 if self.corner_radius > Pixels::ZERO {
7939 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
7940 }
7941 }
7942
7943 builder.line_to(first_top_left + curve_height);
7944 if self.corner_radius > Pixels::ZERO {
7945 builder.curve_to(first_top_left + top_curve_width, first_top_left);
7946 }
7947 builder.line_to(first_top_right - top_curve_width);
7948
7949 if let Ok(path) = builder.build() {
7950 window.paint_path(path, self.color);
7951 }
7952 }
7953}
7954
7955pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7956 (delta.pow(1.5) / 100.0).into()
7957}
7958
7959fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7960 (delta.pow(1.2) / 300.0).into()
7961}
7962
7963pub fn register_action<T: Action>(
7964 editor: &Entity<Editor>,
7965 window: &mut Window,
7966 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
7967) {
7968 let editor = editor.clone();
7969 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
7970 let action = action.downcast_ref().unwrap();
7971 if phase == DispatchPhase::Bubble {
7972 editor.update(cx, |editor, cx| {
7973 listener(editor, action, window, cx);
7974 })
7975 }
7976 })
7977}
7978
7979fn compute_auto_height_layout(
7980 editor: &mut Editor,
7981 max_lines: usize,
7982 max_line_number_width: Pixels,
7983 known_dimensions: Size<Option<Pixels>>,
7984 available_width: AvailableSpace,
7985 window: &mut Window,
7986 cx: &mut Context<Editor>,
7987) -> Option<Size<Pixels>> {
7988 let width = known_dimensions.width.or({
7989 if let AvailableSpace::Definite(available_width) = available_width {
7990 Some(available_width)
7991 } else {
7992 None
7993 }
7994 })?;
7995 if let Some(height) = known_dimensions.height {
7996 return Some(size(width, height));
7997 }
7998
7999 let style = editor.style.as_ref().unwrap();
8000 let font_id = window.text_system().resolve_font(&style.text.font());
8001 let font_size = style.text.font_size.to_pixels(window.rem_size());
8002 let line_height = style.text.line_height_in_pixels(window.rem_size());
8003 let em_width = window
8004 .text_system()
8005 .typographic_bounds(font_id, font_size, 'm')
8006 .unwrap()
8007 .size
8008 .width;
8009 let em_advance = window
8010 .text_system()
8011 .advance(font_id, font_size, 'm')
8012 .unwrap()
8013 .width;
8014
8015 let mut snapshot = editor.snapshot(window, cx);
8016 let gutter_dimensions = snapshot.gutter_dimensions(
8017 font_id,
8018 font_size,
8019 em_width,
8020 em_advance,
8021 max_line_number_width,
8022 cx,
8023 );
8024
8025 editor.gutter_dimensions = gutter_dimensions;
8026 let text_width = width - gutter_dimensions.width;
8027 let overscroll = size(em_width, px(0.));
8028
8029 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8030 if editor.set_wrap_width(Some(editor_width), cx) {
8031 snapshot = editor.snapshot(window, cx);
8032 }
8033
8034 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8035 let height = scroll_height
8036 .max(line_height)
8037 .min(line_height * max_lines as f32);
8038
8039 Some(size(width, height))
8040}
8041
8042#[cfg(test)]
8043mod tests {
8044 use super::*;
8045 use crate::{
8046 display_map::{BlockPlacement, BlockProperties},
8047 editor_tests::{init_test, update_test_language_settings},
8048 Editor, MultiBuffer,
8049 };
8050 use gpui::{TestAppContext, VisualTestContext};
8051 use language::language_settings;
8052 use log::info;
8053 use similar::DiffableStr;
8054 use std::num::NonZeroU32;
8055 use util::test::sample_text;
8056
8057 #[gpui::test]
8058 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8059 init_test(cx, |_| {});
8060 let window = cx.add_window(|window, cx| {
8061 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8062 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8063 });
8064
8065 let editor = window.root(cx).unwrap();
8066 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8067 let line_height = window
8068 .update(cx, |_, window, _| {
8069 style.text.line_height_in_pixels(window.rem_size())
8070 })
8071 .unwrap();
8072 let element = EditorElement::new(&editor, style);
8073 let snapshot = window
8074 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8075 .unwrap();
8076
8077 let layouts = cx
8078 .update_window(*window, |_, window, cx| {
8079 element.layout_line_numbers(
8080 None,
8081 GutterDimensions {
8082 left_padding: Pixels::ZERO,
8083 right_padding: Pixels::ZERO,
8084 width: px(30.0),
8085 margin: Pixels::ZERO,
8086 git_blame_entries_width: None,
8087 },
8088 line_height,
8089 gpui::Point::default(),
8090 DisplayRow(0)..DisplayRow(6),
8091 &(0..6)
8092 .map(|row| RowInfo {
8093 buffer_row: Some(row),
8094 ..Default::default()
8095 })
8096 .collect::<Vec<_>>(),
8097 Some(DisplayPoint::new(DisplayRow(0), 0)),
8098 &snapshot,
8099 window,
8100 cx,
8101 )
8102 })
8103 .unwrap();
8104 assert_eq!(layouts.len(), 6);
8105
8106 let relative_rows = window
8107 .update(cx, |editor, window, cx| {
8108 let snapshot = editor.snapshot(window, cx);
8109 element.calculate_relative_line_numbers(
8110 &snapshot,
8111 &(DisplayRow(0)..DisplayRow(6)),
8112 Some(DisplayRow(3)),
8113 )
8114 })
8115 .unwrap();
8116 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8117 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8118 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8119 // current line has no relative number
8120 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8121 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8122
8123 // works if cursor is before screen
8124 let relative_rows = window
8125 .update(cx, |editor, window, cx| {
8126 let snapshot = editor.snapshot(window, cx);
8127 element.calculate_relative_line_numbers(
8128 &snapshot,
8129 &(DisplayRow(3)..DisplayRow(6)),
8130 Some(DisplayRow(1)),
8131 )
8132 })
8133 .unwrap();
8134 assert_eq!(relative_rows.len(), 3);
8135 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8136 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8137 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8138
8139 // works if cursor is after screen
8140 let relative_rows = window
8141 .update(cx, |editor, window, cx| {
8142 let snapshot = editor.snapshot(window, cx);
8143 element.calculate_relative_line_numbers(
8144 &snapshot,
8145 &(DisplayRow(0)..DisplayRow(3)),
8146 Some(DisplayRow(6)),
8147 )
8148 })
8149 .unwrap();
8150 assert_eq!(relative_rows.len(), 3);
8151 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8152 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8153 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8154 }
8155
8156 #[gpui::test]
8157 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8158 init_test(cx, |_| {});
8159
8160 let window = cx.add_window(|window, cx| {
8161 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8162 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8163 });
8164 let cx = &mut VisualTestContext::from_window(*window, cx);
8165 let editor = window.root(cx).unwrap();
8166 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8167
8168 window
8169 .update(cx, |editor, window, cx| {
8170 editor.cursor_shape = CursorShape::Block;
8171 editor.change_selections(None, window, cx, |s| {
8172 s.select_ranges([
8173 Point::new(0, 0)..Point::new(1, 0),
8174 Point::new(3, 2)..Point::new(3, 3),
8175 Point::new(5, 6)..Point::new(6, 0),
8176 ]);
8177 });
8178 })
8179 .unwrap();
8180
8181 let (_, state) = cx.draw(
8182 point(px(500.), px(500.)),
8183 size(px(500.), px(500.)),
8184 |_, _| EditorElement::new(&editor, style),
8185 );
8186
8187 assert_eq!(state.selections.len(), 1);
8188 let local_selections = &state.selections[0].1;
8189 assert_eq!(local_selections.len(), 3);
8190 // moves cursor back one line
8191 assert_eq!(
8192 local_selections[0].head,
8193 DisplayPoint::new(DisplayRow(0), 6)
8194 );
8195 assert_eq!(
8196 local_selections[0].range,
8197 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8198 );
8199
8200 // moves cursor back one column
8201 assert_eq!(
8202 local_selections[1].range,
8203 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8204 );
8205 assert_eq!(
8206 local_selections[1].head,
8207 DisplayPoint::new(DisplayRow(3), 2)
8208 );
8209
8210 // leaves cursor on the max point
8211 assert_eq!(
8212 local_selections[2].range,
8213 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8214 );
8215 assert_eq!(
8216 local_selections[2].head,
8217 DisplayPoint::new(DisplayRow(6), 0)
8218 );
8219
8220 // active lines does not include 1 (even though the range of the selection does)
8221 assert_eq!(
8222 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8223 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8224 );
8225
8226 // multi-buffer support
8227 // in DisplayPoint coordinates, this is what we're dealing with:
8228 // 0: [[file
8229 // 1: header
8230 // 2: section]]
8231 // 3: aaaaaa
8232 // 4: bbbbbb
8233 // 5: cccccc
8234 // 6:
8235 // 7: [[footer]]
8236 // 8: [[header]]
8237 // 9: ffffff
8238 // 10: gggggg
8239 // 11: hhhhhh
8240 // 12:
8241 // 13: [[footer]]
8242 // 14: [[file
8243 // 15: header
8244 // 16: section]]
8245 // 17: bbbbbb
8246 // 18: cccccc
8247 // 19: dddddd
8248 // 20: [[footer]]
8249 let window = cx.add_window(|window, cx| {
8250 let buffer = MultiBuffer::build_multi(
8251 [
8252 (
8253 &(sample_text(8, 6, 'a') + "\n"),
8254 vec![
8255 Point::new(0, 0)..Point::new(3, 0),
8256 Point::new(4, 0)..Point::new(7, 0),
8257 ],
8258 ),
8259 (
8260 &(sample_text(8, 6, 'a') + "\n"),
8261 vec![Point::new(1, 0)..Point::new(3, 0)],
8262 ),
8263 ],
8264 cx,
8265 );
8266 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8267 });
8268 let editor = window.root(cx).unwrap();
8269 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8270 let _state = window.update(cx, |editor, window, cx| {
8271 editor.cursor_shape = CursorShape::Block;
8272 editor.change_selections(None, window, cx, |s| {
8273 s.select_display_ranges([
8274 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8275 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8276 ]);
8277 });
8278 });
8279
8280 let (_, state) = cx.draw(
8281 point(px(500.), px(500.)),
8282 size(px(500.), px(500.)),
8283 |_, _| EditorElement::new(&editor, style),
8284 );
8285 assert_eq!(state.selections.len(), 1);
8286 let local_selections = &state.selections[0].1;
8287 assert_eq!(local_selections.len(), 2);
8288
8289 // moves cursor on excerpt boundary back a line
8290 // and doesn't allow selection to bleed through
8291 assert_eq!(
8292 local_selections[0].range,
8293 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8294 );
8295 assert_eq!(
8296 local_selections[0].head,
8297 DisplayPoint::new(DisplayRow(6), 0)
8298 );
8299 // moves cursor on buffer boundary back two lines
8300 // and doesn't allow selection to bleed through
8301 assert_eq!(
8302 local_selections[1].range,
8303 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8304 );
8305 assert_eq!(
8306 local_selections[1].head,
8307 DisplayPoint::new(DisplayRow(12), 0)
8308 );
8309 }
8310
8311 #[gpui::test]
8312 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8313 init_test(cx, |_| {});
8314
8315 let window = cx.add_window(|window, cx| {
8316 let buffer = MultiBuffer::build_simple("", cx);
8317 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8318 });
8319 let cx = &mut VisualTestContext::from_window(*window, cx);
8320 let editor = window.root(cx).unwrap();
8321 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8322 window
8323 .update(cx, |editor, window, cx| {
8324 editor.set_placeholder_text("hello", cx);
8325 editor.insert_blocks(
8326 [BlockProperties {
8327 style: BlockStyle::Fixed,
8328 placement: BlockPlacement::Above(Anchor::min()),
8329 height: 3,
8330 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8331 priority: 0,
8332 }],
8333 None,
8334 cx,
8335 );
8336
8337 // Blur the editor so that it displays placeholder text.
8338 window.blur();
8339 })
8340 .unwrap();
8341
8342 let (_, state) = cx.draw(
8343 point(px(500.), px(500.)),
8344 size(px(500.), px(500.)),
8345 |_, _| EditorElement::new(&editor, style),
8346 );
8347 assert_eq!(state.position_map.line_layouts.len(), 4);
8348 assert_eq!(state.line_numbers.len(), 1);
8349 assert_eq!(
8350 state
8351 .line_numbers
8352 .get(&MultiBufferRow(0))
8353 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8354 Some("1")
8355 );
8356 }
8357
8358 #[gpui::test]
8359 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8360 const TAB_SIZE: u32 = 4;
8361
8362 let input_text = "\t \t|\t| a b";
8363 let expected_invisibles = vec![
8364 Invisible::Tab {
8365 line_start_offset: 0,
8366 line_end_offset: TAB_SIZE as usize,
8367 },
8368 Invisible::Whitespace {
8369 line_offset: TAB_SIZE as usize,
8370 },
8371 Invisible::Tab {
8372 line_start_offset: TAB_SIZE as usize + 1,
8373 line_end_offset: TAB_SIZE as usize * 2,
8374 },
8375 Invisible::Tab {
8376 line_start_offset: TAB_SIZE as usize * 2 + 1,
8377 line_end_offset: TAB_SIZE as usize * 3,
8378 },
8379 Invisible::Whitespace {
8380 line_offset: TAB_SIZE as usize * 3 + 1,
8381 },
8382 Invisible::Whitespace {
8383 line_offset: TAB_SIZE as usize * 3 + 3,
8384 },
8385 ];
8386 assert_eq!(
8387 expected_invisibles.len(),
8388 input_text
8389 .chars()
8390 .filter(|initial_char| initial_char.is_whitespace())
8391 .count(),
8392 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8393 );
8394
8395 for show_line_numbers in [true, false] {
8396 init_test(cx, |s| {
8397 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8398 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8399 });
8400
8401 let actual_invisibles = collect_invisibles_from_new_editor(
8402 cx,
8403 EditorMode::Full,
8404 input_text,
8405 px(500.0),
8406 show_line_numbers,
8407 );
8408
8409 assert_eq!(expected_invisibles, actual_invisibles);
8410 }
8411 }
8412
8413 #[gpui::test]
8414 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8415 init_test(cx, |s| {
8416 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8417 s.defaults.tab_size = NonZeroU32::new(4);
8418 });
8419
8420 for editor_mode_without_invisibles in [
8421 EditorMode::SingleLine { auto_width: false },
8422 EditorMode::AutoHeight { max_lines: 100 },
8423 ] {
8424 for show_line_numbers in [true, false] {
8425 let invisibles = collect_invisibles_from_new_editor(
8426 cx,
8427 editor_mode_without_invisibles,
8428 "\t\t\t| | a b",
8429 px(500.0),
8430 show_line_numbers,
8431 );
8432 assert!(invisibles.is_empty(),
8433 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8434 }
8435 }
8436 }
8437
8438 #[gpui::test]
8439 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8440 let tab_size = 4;
8441 let input_text = "a\tbcd ".repeat(9);
8442 let repeated_invisibles = [
8443 Invisible::Tab {
8444 line_start_offset: 1,
8445 line_end_offset: tab_size as usize,
8446 },
8447 Invisible::Whitespace {
8448 line_offset: tab_size as usize + 3,
8449 },
8450 Invisible::Whitespace {
8451 line_offset: tab_size as usize + 4,
8452 },
8453 Invisible::Whitespace {
8454 line_offset: tab_size as usize + 5,
8455 },
8456 Invisible::Whitespace {
8457 line_offset: tab_size as usize + 6,
8458 },
8459 Invisible::Whitespace {
8460 line_offset: tab_size as usize + 7,
8461 },
8462 ];
8463 let expected_invisibles = std::iter::once(repeated_invisibles)
8464 .cycle()
8465 .take(9)
8466 .flatten()
8467 .collect::<Vec<_>>();
8468 assert_eq!(
8469 expected_invisibles.len(),
8470 input_text
8471 .chars()
8472 .filter(|initial_char| initial_char.is_whitespace())
8473 .count(),
8474 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8475 );
8476 info!("Expected invisibles: {expected_invisibles:?}");
8477
8478 init_test(cx, |_| {});
8479
8480 // Put the same string with repeating whitespace pattern into editors of various size,
8481 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8482 let resize_step = 10.0;
8483 let mut editor_width = 200.0;
8484 while editor_width <= 1000.0 {
8485 for show_line_numbers in [true, false] {
8486 update_test_language_settings(cx, |s| {
8487 s.defaults.tab_size = NonZeroU32::new(tab_size);
8488 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8489 s.defaults.preferred_line_length = Some(editor_width as u32);
8490 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8491 });
8492
8493 let actual_invisibles = collect_invisibles_from_new_editor(
8494 cx,
8495 EditorMode::Full,
8496 &input_text,
8497 px(editor_width),
8498 show_line_numbers,
8499 );
8500
8501 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8502 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8503 let mut i = 0;
8504 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8505 i = actual_index;
8506 match expected_invisibles.get(i) {
8507 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8508 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8509 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8510 _ => {
8511 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8512 }
8513 },
8514 None => {
8515 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8516 }
8517 }
8518 }
8519 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8520 assert!(
8521 missing_expected_invisibles.is_empty(),
8522 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8523 );
8524
8525 editor_width += resize_step;
8526 }
8527 }
8528 }
8529
8530 fn collect_invisibles_from_new_editor(
8531 cx: &mut TestAppContext,
8532 editor_mode: EditorMode,
8533 input_text: &str,
8534 editor_width: Pixels,
8535 show_line_numbers: bool,
8536 ) -> Vec<Invisible> {
8537 info!(
8538 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8539 editor_width.0
8540 );
8541 let window = cx.add_window(|window, cx| {
8542 let buffer = MultiBuffer::build_simple(input_text, cx);
8543 Editor::new(editor_mode, buffer, None, true, window, cx)
8544 });
8545 let cx = &mut VisualTestContext::from_window(*window, cx);
8546 let editor = window.root(cx).unwrap();
8547
8548 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8549 window
8550 .update(cx, |editor, _, cx| {
8551 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8552 editor.set_wrap_width(Some(editor_width), cx);
8553 editor.set_show_line_numbers(show_line_numbers, cx);
8554 })
8555 .unwrap();
8556 let (_, state) = cx.draw(
8557 point(px(500.), px(500.)),
8558 size(px(500.), px(500.)),
8559 |_, _| EditorElement::new(&editor, style),
8560 );
8561 state
8562 .position_map
8563 .line_layouts
8564 .iter()
8565 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8566 .cloned()
8567 .collect()
8568 }
8569}
8570
8571fn diff_hunk_controls(
8572 row: u32,
8573 hunk_range: Range<Anchor>,
8574 line_height: Pixels,
8575 editor: &Entity<Editor>,
8576 cx: &mut App,
8577) -> AnyElement {
8578 h_flex()
8579 .h(line_height)
8580 .mr_1()
8581 .gap_1()
8582 .px_1()
8583 .pb_1()
8584 .border_b_1()
8585 .border_color(cx.theme().colors().border_variant)
8586 .rounded_b_lg()
8587 .bg(cx.theme().colors().editor_background)
8588 .gap_1()
8589 .child(
8590 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8591 .shape(IconButtonShape::Square)
8592 .icon_size(IconSize::Small)
8593 // .disabled(!has_multiple_hunks)
8594 .tooltip({
8595 let focus_handle = editor.focus_handle(cx);
8596 move |window, cx| {
8597 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8598 }
8599 })
8600 .on_click({
8601 let editor = editor.clone();
8602 move |_event, window, cx| {
8603 editor.update(cx, |editor, cx| {
8604 let snapshot = editor.snapshot(window, cx);
8605 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8606 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8607 editor.expand_selected_diff_hunks(cx);
8608 });
8609 }
8610 }),
8611 )
8612 .child(
8613 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8614 .shape(IconButtonShape::Square)
8615 .icon_size(IconSize::Small)
8616 // .disabled(!has_multiple_hunks)
8617 .tooltip({
8618 let focus_handle = editor.focus_handle(cx);
8619 move |window, cx| {
8620 Tooltip::for_action_in(
8621 "Previous Hunk",
8622 &GoToPrevHunk,
8623 &focus_handle,
8624 window,
8625 cx,
8626 )
8627 }
8628 })
8629 .on_click({
8630 let editor = editor.clone();
8631 move |_event, window, cx| {
8632 editor.update(cx, |editor, cx| {
8633 let snapshot = editor.snapshot(window, cx);
8634 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8635 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8636 editor.expand_selected_diff_hunks(cx);
8637 });
8638 }
8639 }),
8640 )
8641 .child(
8642 IconButton::new("discard", IconName::Undo)
8643 .shape(IconButtonShape::Square)
8644 .icon_size(IconSize::Small)
8645 .tooltip({
8646 let focus_handle = editor.focus_handle(cx);
8647 move |window, cx| {
8648 Tooltip::for_action_in(
8649 "Discard Hunk",
8650 &RevertSelectedHunks,
8651 &focus_handle,
8652 window,
8653 cx,
8654 )
8655 }
8656 })
8657 .on_click({
8658 let editor = editor.clone();
8659 move |_event, window, cx| {
8660 editor.update(cx, |editor, cx| {
8661 let snapshot = editor.snapshot(window, cx);
8662 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8663 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8664 });
8665 }
8666 }),
8667 )
8668 .into_any_element()
8669}