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