1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::{CommitDetails, GitBlame},
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point,
23 RevertSelectedHunks, RowExt, RowRangeExt, SelectPhase, Selection, SoftWrap,
24 StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use client::ParticipantIndex;
28use collections::{BTreeMap, HashMap, HashSet};
29use file_icons::FileIcons;
30use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
31use gpui::{
32 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
33 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
34 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
35 Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
36 Hsla, InteractiveElement, IntoElement, Length, ModifiersChangedEvent, MouseButton,
37 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
38 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
39 Subscription, TextRun, TextStyleRefinement, WeakEntity, Window,
40};
41use itertools::Itertools;
42use language::{
43 language_settings::{
44 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
45 ShowWhitespaceSetting,
46 },
47 ChunkRendererContext,
48};
49use lsp::DiagnosticSeverity;
50use multi_buffer::{
51 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
52 RowInfo, ToOffset,
53};
54use project::project_settings::{GitGutterSetting, ProjectSettings};
55use settings::Settings;
56use smallvec::{smallvec, SmallVec};
57use std::{
58 any::TypeId,
59 borrow::Cow,
60 cmp::{self, Ordering},
61 fmt::{self, Write},
62 iter, mem,
63 ops::{Deref, Range},
64 rc::Rc,
65 sync::Arc,
66};
67use sum_tree::Bias;
68use text::BufferId;
69use theme::{ActiveTheme, Appearance, PlayerColor};
70use ui::{
71 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
72 POPOVER_Y_PADDING,
73};
74use unicode_segmentation::UnicodeSegmentation;
75use util::{RangeExt, ResultExt};
76use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
77
78const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
79
80#[derive(Debug, Clone, PartialEq, Eq)]
81enum DisplayDiffHunk {
82 Folded {
83 display_row: DisplayRow,
84 },
85
86 Unfolded {
87 diff_base_byte_range: Range<usize>,
88 display_row_range: Range<DisplayRow>,
89 multi_buffer_range: Range<Anchor>,
90 status: DiffHunkStatus,
91 },
92}
93
94struct SelectionLayout {
95 head: DisplayPoint,
96 cursor_shape: CursorShape,
97 is_newest: bool,
98 is_local: bool,
99 range: Range<DisplayPoint>,
100 active_rows: Range<DisplayRow>,
101 user_name: Option<SharedString>,
102}
103
104impl SelectionLayout {
105 fn new<T: ToPoint + ToDisplayPoint + Clone>(
106 selection: Selection<T>,
107 line_mode: bool,
108 cursor_shape: CursorShape,
109 map: &DisplaySnapshot,
110 is_newest: bool,
111 is_local: bool,
112 user_name: Option<SharedString>,
113 ) -> Self {
114 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
115 let display_selection = point_selection.map(|p| p.to_display_point(map));
116 let mut range = display_selection.range();
117 let mut head = display_selection.head();
118 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
119 ..map.next_line_boundary(point_selection.end).1.row();
120
121 // vim visual line mode
122 if line_mode {
123 let point_range = map.expand_to_line(point_selection.range());
124 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
125 }
126
127 // any vim visual mode (including line mode)
128 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
129 && !range.is_empty()
130 && !selection.reversed
131 {
132 if head.column() > 0 {
133 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
134 } else if head.row().0 > 0 && head != map.max_point() {
135 head = map.clip_point(
136 DisplayPoint::new(
137 head.row().previous_row(),
138 map.line_len(head.row().previous_row()),
139 ),
140 Bias::Left,
141 );
142 // updating range.end is a no-op unless you're cursor is
143 // on the newline containing a multi-buffer divider
144 // in which case the clip_point may have moved the head up
145 // an additional row.
146 range.end = DisplayPoint::new(head.row().next_row(), 0);
147 active_rows.end = head.row();
148 }
149 }
150
151 Self {
152 head,
153 cursor_shape,
154 is_newest,
155 is_local,
156 range,
157 active_rows,
158 user_name,
159 }
160 }
161}
162
163pub struct EditorElement {
164 editor: Entity<Editor>,
165 style: EditorStyle,
166}
167
168type DisplayRowDelta = u32;
169
170impl EditorElement {
171 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
172
173 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
174 Self {
175 editor: editor.clone(),
176 style,
177 }
178 }
179
180 fn register_actions(&self, window: &mut Window, cx: &mut App) {
181 let editor = &self.editor;
182 editor.update(cx, |editor, cx| {
183 for action in editor.editor_actions.borrow().values() {
184 (action)(window, cx)
185 }
186 });
187
188 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
189 crate::clangd_ext::apply_related_actions(editor, window, cx);
190 register_action(editor, window, Editor::open_context_menu);
191 register_action(editor, window, Editor::move_left);
192 register_action(editor, window, Editor::move_right);
193 register_action(editor, window, Editor::move_down);
194 register_action(editor, window, Editor::move_down_by_lines);
195 register_action(editor, window, Editor::select_down_by_lines);
196 register_action(editor, window, Editor::move_up);
197 register_action(editor, window, Editor::move_up_by_lines);
198 register_action(editor, window, Editor::select_up_by_lines);
199 register_action(editor, window, Editor::select_page_down);
200 register_action(editor, window, Editor::select_page_up);
201 register_action(editor, window, Editor::cancel);
202 register_action(editor, window, Editor::newline);
203 register_action(editor, window, Editor::newline_above);
204 register_action(editor, window, Editor::newline_below);
205 register_action(editor, window, Editor::backspace);
206 register_action(editor, window, Editor::delete);
207 register_action(editor, window, Editor::tab);
208 register_action(editor, window, Editor::tab_prev);
209 register_action(editor, window, Editor::indent);
210 register_action(editor, window, Editor::outdent);
211 register_action(editor, window, Editor::autoindent);
212 register_action(editor, window, Editor::delete_line);
213 register_action(editor, window, Editor::join_lines);
214 register_action(editor, window, Editor::sort_lines_case_sensitive);
215 register_action(editor, window, Editor::sort_lines_case_insensitive);
216 register_action(editor, window, Editor::reverse_lines);
217 register_action(editor, window, Editor::shuffle_lines);
218 register_action(editor, window, Editor::convert_to_upper_case);
219 register_action(editor, window, Editor::convert_to_lower_case);
220 register_action(editor, window, Editor::convert_to_title_case);
221 register_action(editor, window, Editor::convert_to_snake_case);
222 register_action(editor, window, Editor::convert_to_kebab_case);
223 register_action(editor, window, Editor::convert_to_upper_camel_case);
224 register_action(editor, window, Editor::convert_to_lower_camel_case);
225 register_action(editor, window, Editor::convert_to_opposite_case);
226 register_action(editor, window, Editor::delete_to_previous_word_start);
227 register_action(editor, window, Editor::delete_to_previous_subword_start);
228 register_action(editor, window, Editor::delete_to_next_word_end);
229 register_action(editor, window, Editor::delete_to_next_subword_end);
230 register_action(editor, window, Editor::delete_to_beginning_of_line);
231 register_action(editor, window, Editor::delete_to_end_of_line);
232 register_action(editor, window, Editor::cut_to_end_of_line);
233 register_action(editor, window, Editor::duplicate_line_up);
234 register_action(editor, window, Editor::duplicate_line_down);
235 register_action(editor, window, Editor::duplicate_selection);
236 register_action(editor, window, Editor::move_line_up);
237 register_action(editor, window, Editor::move_line_down);
238 register_action(editor, window, Editor::transpose);
239 register_action(editor, window, Editor::rewrap);
240 register_action(editor, window, Editor::cut);
241 register_action(editor, window, Editor::kill_ring_cut);
242 register_action(editor, window, Editor::kill_ring_yank);
243 register_action(editor, window, Editor::copy);
244 register_action(editor, window, Editor::paste);
245 register_action(editor, window, Editor::undo);
246 register_action(editor, window, Editor::redo);
247 register_action(editor, window, Editor::move_page_up);
248 register_action(editor, window, Editor::move_page_down);
249 register_action(editor, window, Editor::next_screen);
250 register_action(editor, window, Editor::scroll_cursor_top);
251 register_action(editor, window, Editor::scroll_cursor_center);
252 register_action(editor, window, Editor::scroll_cursor_bottom);
253 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
254 register_action(editor, window, |editor, _: &LineDown, window, cx| {
255 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
256 });
257 register_action(editor, window, |editor, _: &LineUp, window, cx| {
258 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
259 });
260 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
261 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
262 });
263 register_action(
264 editor,
265 window,
266 |editor, HandleInput(text): &HandleInput, window, cx| {
267 if text.is_empty() {
268 return;
269 }
270 editor.handle_input(text, window, cx);
271 },
272 );
273 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
274 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
275 });
276 register_action(editor, window, |editor, _: &PageDown, window, cx| {
277 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
278 });
279 register_action(editor, window, |editor, _: &PageUp, window, cx| {
280 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
281 });
282 register_action(editor, window, Editor::move_to_previous_word_start);
283 register_action(editor, window, Editor::move_to_previous_subword_start);
284 register_action(editor, window, Editor::move_to_next_word_end);
285 register_action(editor, window, Editor::move_to_next_subword_end);
286 register_action(editor, window, Editor::move_to_beginning_of_line);
287 register_action(editor, window, Editor::move_to_end_of_line);
288 register_action(editor, window, Editor::move_to_start_of_paragraph);
289 register_action(editor, window, Editor::move_to_end_of_paragraph);
290 register_action(editor, window, Editor::move_to_beginning);
291 register_action(editor, window, Editor::move_to_end);
292 register_action(editor, window, Editor::select_up);
293 register_action(editor, window, Editor::select_down);
294 register_action(editor, window, Editor::select_left);
295 register_action(editor, window, Editor::select_right);
296 register_action(editor, window, Editor::select_to_previous_word_start);
297 register_action(editor, window, Editor::select_to_previous_subword_start);
298 register_action(editor, window, Editor::select_to_next_word_end);
299 register_action(editor, window, Editor::select_to_next_subword_end);
300 register_action(editor, window, Editor::select_to_beginning_of_line);
301 register_action(editor, window, Editor::select_to_end_of_line);
302 register_action(editor, window, Editor::select_to_start_of_paragraph);
303 register_action(editor, window, Editor::select_to_end_of_paragraph);
304 register_action(editor, window, Editor::select_to_beginning);
305 register_action(editor, window, Editor::select_to_end);
306 register_action(editor, window, Editor::select_all);
307 register_action(editor, window, |editor, action, window, cx| {
308 editor.select_all_matches(action, window, cx).log_err();
309 });
310 register_action(editor, window, Editor::select_line);
311 register_action(editor, window, Editor::split_selection_into_lines);
312 register_action(editor, window, Editor::add_selection_above);
313 register_action(editor, window, Editor::add_selection_below);
314 register_action(editor, window, |editor, action, window, cx| {
315 editor.select_next(action, window, cx).log_err();
316 });
317 register_action(editor, window, |editor, action, window, cx| {
318 editor.select_previous(action, window, cx).log_err();
319 });
320 register_action(editor, window, Editor::toggle_comments);
321 register_action(editor, window, Editor::select_larger_syntax_node);
322 register_action(editor, window, Editor::select_smaller_syntax_node);
323 register_action(editor, window, Editor::select_enclosing_symbol);
324 register_action(editor, window, Editor::move_to_enclosing_bracket);
325 register_action(editor, window, Editor::undo_selection);
326 register_action(editor, window, Editor::redo_selection);
327 if !editor.read(cx).is_singleton(cx) {
328 register_action(editor, window, Editor::expand_excerpts);
329 register_action(editor, window, Editor::expand_excerpts_up);
330 register_action(editor, window, Editor::expand_excerpts_down);
331 }
332 register_action(editor, window, Editor::go_to_diagnostic);
333 register_action(editor, window, Editor::go_to_prev_diagnostic);
334 register_action(editor, window, Editor::go_to_next_hunk);
335 register_action(editor, window, Editor::go_to_prev_hunk);
336 register_action(editor, window, |editor, action, window, cx| {
337 editor
338 .go_to_definition(action, window, cx)
339 .detach_and_log_err(cx);
340 });
341 register_action(editor, window, |editor, action, window, cx| {
342 editor
343 .go_to_definition_split(action, window, cx)
344 .detach_and_log_err(cx);
345 });
346 register_action(editor, window, |editor, action, window, cx| {
347 editor
348 .go_to_declaration(action, window, cx)
349 .detach_and_log_err(cx);
350 });
351 register_action(editor, window, |editor, action, window, cx| {
352 editor
353 .go_to_declaration_split(action, window, cx)
354 .detach_and_log_err(cx);
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor
358 .go_to_implementation(action, window, cx)
359 .detach_and_log_err(cx);
360 });
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_implementation_split(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_type_definition(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_type_definition_split(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, Editor::open_url);
377 register_action(editor, window, Editor::open_selected_filename);
378 register_action(editor, window, Editor::fold);
379 register_action(editor, window, Editor::fold_at_level);
380 register_action(editor, window, Editor::fold_all);
381 register_action(editor, window, Editor::fold_function_bodies);
382 register_action(editor, window, Editor::fold_at);
383 register_action(editor, window, Editor::fold_recursive);
384 register_action(editor, window, Editor::toggle_fold);
385 register_action(editor, window, Editor::toggle_fold_recursive);
386 register_action(editor, window, Editor::unfold_lines);
387 register_action(editor, window, Editor::unfold_recursive);
388 register_action(editor, window, Editor::unfold_all);
389 register_action(editor, window, Editor::unfold_at);
390 register_action(editor, window, Editor::fold_selected_ranges);
391 register_action(editor, window, Editor::set_mark);
392 register_action(editor, window, Editor::swap_selection_ends);
393 register_action(editor, window, Editor::show_completions);
394 register_action(editor, window, Editor::toggle_code_actions);
395 register_action(editor, window, Editor::open_excerpts);
396 register_action(editor, window, Editor::open_excerpts_in_split);
397 register_action(editor, window, Editor::open_proposed_changes_editor);
398 register_action(editor, window, Editor::toggle_soft_wrap);
399 register_action(editor, window, Editor::toggle_tab_bar);
400 register_action(editor, window, Editor::toggle_line_numbers);
401 register_action(editor, window, Editor::toggle_relative_line_numbers);
402 register_action(editor, window, Editor::toggle_indent_guides);
403 register_action(editor, window, Editor::toggle_inlay_hints);
404 register_action(editor, window, Editor::toggle_inline_completions);
405 register_action(editor, window, hover_popover::hover);
406 register_action(editor, window, Editor::reveal_in_finder);
407 register_action(editor, window, Editor::copy_path);
408 register_action(editor, window, Editor::copy_relative_path);
409 register_action(editor, window, Editor::copy_highlight_json);
410 register_action(editor, window, Editor::copy_permalink_to_line);
411 register_action(editor, window, Editor::open_permalink_to_line);
412 register_action(editor, window, Editor::copy_file_location);
413 register_action(editor, window, Editor::toggle_git_blame);
414 register_action(editor, window, Editor::toggle_git_blame_inline);
415 register_action(editor, window, Editor::toggle_selected_diff_hunks);
416 register_action(editor, window, Editor::expand_all_diff_hunks);
417 register_action(editor, window, |editor, action, window, cx| {
418 if let Some(task) = editor.format(action, window, cx) {
419 task.detach_and_notify_err(window, cx);
420 } else {
421 cx.propagate();
422 }
423 });
424 register_action(editor, window, |editor, action, window, cx| {
425 if let Some(task) = editor.format_selections(action, window, cx) {
426 task.detach_and_notify_err(window, cx);
427 } else {
428 cx.propagate();
429 }
430 });
431 register_action(editor, window, Editor::restart_language_server);
432 register_action(editor, window, Editor::cancel_language_server_work);
433 register_action(editor, window, Editor::show_character_palette);
434 register_action(editor, window, |editor, action, window, cx| {
435 if let Some(task) = editor.confirm_completion(action, window, cx) {
436 task.detach_and_notify_err(window, cx);
437 } else {
438 cx.propagate();
439 }
440 });
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.compose_completion(action, window, cx) {
443 task.detach_and_notify_err(window, cx);
444 } else {
445 cx.propagate();
446 }
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.confirm_code_action(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.rename(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, |editor, action, window, cx| {
463 if let Some(task) = editor.confirm_rename(action, window, cx) {
464 task.detach_and_notify_err(window, cx);
465 } else {
466 cx.propagate();
467 }
468 });
469 register_action(editor, window, |editor, action, window, cx| {
470 if let Some(task) = editor.find_all_references(action, window, cx) {
471 task.detach_and_log_err(cx);
472 } else {
473 cx.propagate();
474 }
475 });
476 register_action(editor, window, Editor::show_signature_help);
477 register_action(editor, window, Editor::next_inline_completion);
478 register_action(editor, window, Editor::previous_inline_completion);
479 register_action(editor, window, Editor::show_inline_completion);
480 register_action(editor, window, Editor::context_menu_first);
481 register_action(editor, window, Editor::context_menu_prev);
482 register_action(editor, window, Editor::context_menu_next);
483 register_action(editor, window, Editor::context_menu_last);
484 register_action(editor, window, Editor::display_cursor_names);
485 register_action(editor, window, Editor::unique_lines_case_insensitive);
486 register_action(editor, window, Editor::unique_lines_case_sensitive);
487 register_action(editor, window, Editor::accept_partial_inline_completion);
488 register_action(editor, window, Editor::accept_inline_completion);
489 register_action(editor, window, Editor::revert_file);
490 register_action(editor, window, Editor::revert_selected_hunks);
491 register_action(editor, window, Editor::apply_all_diff_hunks);
492 register_action(editor, window, Editor::apply_selected_diff_hunks);
493 register_action(editor, window, Editor::open_active_item_in_terminal);
494 register_action(editor, window, Editor::reload_file);
495 register_action(editor, window, Editor::spawn_nearest_task);
496 register_action(editor, window, Editor::insert_uuid_v4);
497 register_action(editor, window, Editor::insert_uuid_v7);
498 register_action(editor, window, Editor::open_selections_in_multibuffer);
499 }
500
501 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
502 let position_map = layout.position_map.clone();
503 window.on_key_event({
504 let editor = self.editor.clone();
505 let text_hitbox = layout.text_hitbox.clone();
506 move |event: &ModifiersChangedEvent, phase, window, cx| {
507 if phase != DispatchPhase::Bubble {
508 return;
509 }
510 editor.update(cx, |editor, cx| {
511 if editor.hover_state.focused(window, cx) {
512 return;
513 }
514 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, window, cx)
515 })
516 }
517 });
518 }
519
520 fn modifiers_changed(
521 editor: &mut Editor,
522 event: &ModifiersChangedEvent,
523 position_map: &PositionMap,
524 text_hitbox: &Hitbox,
525 window: &mut Window,
526 cx: &mut Context<Editor>,
527 ) {
528 let mouse_position = window.mouse_position();
529 if !text_hitbox.is_hovered(window) {
530 return;
531 }
532
533 editor.update_hovered_link(
534 position_map.point_for_position(text_hitbox.bounds, mouse_position),
535 &position_map.snapshot,
536 event.modifiers,
537 window,
538 cx,
539 )
540 }
541
542 #[allow(clippy::too_many_arguments)]
543 fn mouse_left_down(
544 editor: &mut Editor,
545 event: &MouseDownEvent,
546 hovered_hunk: Option<Range<Anchor>>,
547 position_map: &PositionMap,
548 text_hitbox: &Hitbox,
549 gutter_hitbox: &Hitbox,
550 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
551 window: &mut Window,
552 cx: &mut Context<Editor>,
553 ) {
554 if window.default_prevented() {
555 return;
556 }
557
558 let mut click_count = event.click_count;
559 let mut modifiers = event.modifiers;
560
561 if let Some(hovered_hunk) = hovered_hunk {
562 editor.toggle_diff_hunks_in_ranges(vec![hovered_hunk], cx);
563 cx.notify();
564 return;
565 } else if gutter_hitbox.is_hovered(window) {
566 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
567 } else if !text_hitbox.is_hovered(window) {
568 return;
569 }
570
571 let is_singleton = editor.buffer().read(cx).is_singleton();
572
573 if click_count == 2 && !is_singleton {
574 match EditorSettings::get_global(cx).double_click_in_multibuffer {
575 DoubleClickInMultibuffer::Select => {
576 // do nothing special on double click, all selection logic is below
577 }
578 DoubleClickInMultibuffer::Open => {
579 if modifiers.alt {
580 // if double click is made with alt, pretend it's a regular double click without opening and alt,
581 // and run the selection logic.
582 modifiers.alt = false;
583 } else {
584 let scroll_position_row =
585 position_map.scroll_pixel_position.y / position_map.line_height;
586 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
587 + position_map.scroll_pixel_position.y)
588 / position_map.line_height)
589 as u32;
590 let multi_buffer_row = position_map
591 .snapshot
592 .display_point_to_point(
593 DisplayPoint::new(DisplayRow(display_row), 0),
594 Bias::Right,
595 )
596 .row;
597 let line_offset_from_top = display_row - scroll_position_row as u32;
598 // if double click is made without alt, open the corresponding excerp
599 editor.open_excerpts_common(
600 Some(JumpData::MultiBufferRow {
601 row: MultiBufferRow(multi_buffer_row),
602 line_offset_from_top,
603 }),
604 false,
605 window,
606 cx,
607 );
608 return;
609 }
610 }
611 }
612 }
613
614 let point_for_position =
615 position_map.point_for_position(text_hitbox.bounds, event.position);
616 let position = point_for_position.previous_valid;
617 if modifiers.shift && modifiers.alt {
618 editor.select(
619 SelectPhase::BeginColumnar {
620 position,
621 reset: false,
622 goal_column: point_for_position.exact_unclipped.column(),
623 },
624 window,
625 cx,
626 );
627 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
628 {
629 editor.select(
630 SelectPhase::Extend {
631 position,
632 click_count,
633 },
634 window,
635 cx,
636 );
637 } else {
638 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
639 let multi_cursor_modifier = match multi_cursor_setting {
640 MultiCursorModifier::Alt => modifiers.alt,
641 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
642 };
643 editor.select(
644 SelectPhase::Begin {
645 position,
646 add: multi_cursor_modifier,
647 click_count,
648 },
649 window,
650 cx,
651 );
652 }
653 cx.stop_propagation();
654
655 if !is_singleton {
656 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
657 + position_map.scroll_pixel_position.y)
658 / position_map.line_height) as u32;
659 let multi_buffer_row = position_map
660 .snapshot
661 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
662 .row;
663 if line_numbers
664 .get(&MultiBufferRow(multi_buffer_row))
665 .and_then(|line_number| line_number.hitbox.as_ref())
666 .is_some_and(|hitbox| hitbox.contains(&event.position))
667 {
668 let scroll_position_row =
669 position_map.scroll_pixel_position.y / position_map.line_height;
670 let line_offset_from_top = display_row - scroll_position_row as u32;
671
672 editor.open_excerpts_common(
673 Some(JumpData::MultiBufferRow {
674 row: MultiBufferRow(multi_buffer_row),
675 line_offset_from_top,
676 }),
677 modifiers.alt,
678 window,
679 cx,
680 );
681 cx.stop_propagation();
682 }
683 }
684 }
685
686 fn mouse_right_down(
687 editor: &mut Editor,
688 event: &MouseDownEvent,
689 position_map: &PositionMap,
690 text_hitbox: &Hitbox,
691 window: &mut Window,
692 cx: &mut Context<Editor>,
693 ) {
694 if !text_hitbox.is_hovered(window) {
695 return;
696 }
697 let point_for_position =
698 position_map.point_for_position(text_hitbox.bounds, event.position);
699 mouse_context_menu::deploy_context_menu(
700 editor,
701 Some(event.position),
702 point_for_position.previous_valid,
703 window,
704 cx,
705 );
706 cx.stop_propagation();
707 }
708
709 fn mouse_middle_down(
710 editor: &mut Editor,
711 event: &MouseDownEvent,
712 position_map: &PositionMap,
713 text_hitbox: &Hitbox,
714 window: &mut Window,
715 cx: &mut Context<Editor>,
716 ) {
717 if !text_hitbox.is_hovered(window) || window.default_prevented() {
718 return;
719 }
720
721 let point_for_position =
722 position_map.point_for_position(text_hitbox.bounds, event.position);
723 let position = point_for_position.previous_valid;
724
725 editor.select(
726 SelectPhase::BeginColumnar {
727 position,
728 reset: true,
729 goal_column: point_for_position.exact_unclipped.column(),
730 },
731 window,
732 cx,
733 );
734 }
735
736 fn mouse_up(
737 editor: &mut Editor,
738 event: &MouseUpEvent,
739 position_map: &PositionMap,
740 text_hitbox: &Hitbox,
741 window: &mut Window,
742 cx: &mut Context<Editor>,
743 ) {
744 let end_selection = editor.has_pending_selection();
745 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
746
747 if end_selection {
748 editor.select(SelectPhase::End, window, cx);
749 }
750
751 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
752 let multi_cursor_modifier = match multi_cursor_setting {
753 MultiCursorModifier::Alt => event.modifiers.secondary(),
754 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
755 };
756
757 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
758 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
759 editor.handle_click_hovered_link(point, event.modifiers, window, cx);
760
761 cx.stop_propagation();
762 } else if end_selection && pending_nonempty_selections {
763 cx.stop_propagation();
764 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
765 && event.button == MouseButton::Middle
766 {
767 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
768 return;
769 }
770
771 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
772 if EditorSettings::get_global(cx).middle_click_paste {
773 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
774 let point_for_position =
775 position_map.point_for_position(text_hitbox.bounds, event.position);
776 let position = point_for_position.previous_valid;
777
778 editor.select(
779 SelectPhase::Begin {
780 position,
781 add: false,
782 click_count: 1,
783 },
784 window,
785 cx,
786 );
787 editor.insert(&text, window, cx);
788 }
789 cx.stop_propagation()
790 }
791 }
792 }
793
794 fn mouse_dragged(
795 editor: &mut Editor,
796 event: &MouseMoveEvent,
797 position_map: &PositionMap,
798 text_bounds: Bounds<Pixels>,
799 window: &mut Window,
800 cx: &mut Context<Editor>,
801 ) {
802 if !editor.has_pending_selection() {
803 return;
804 }
805
806 let point_for_position = position_map.point_for_position(text_bounds, event.position);
807 let mut scroll_delta = gpui::Point::<f32>::default();
808 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
809 let top = text_bounds.origin.y + vertical_margin;
810 let bottom = text_bounds.bottom_left().y - vertical_margin;
811 if event.position.y < top {
812 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
813 }
814 if event.position.y > bottom {
815 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
816 }
817
818 // We need horizontal width of text
819 let style = editor.style.clone().unwrap_or_default();
820 let font_id = window.text_system().resolve_font(&style.text.font());
821 let font_size = style.text.font_size.to_pixels(window.rem_size());
822 let em_width = window
823 .text_system()
824 .typographic_bounds(font_id, font_size, 'm')
825 .unwrap()
826 .size
827 .width;
828
829 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
830
831 let scroll_space: Pixels = scroll_margin_x * em_width;
832
833 let left = text_bounds.origin.x + scroll_space;
834 let right = text_bounds.top_right().x - scroll_space;
835
836 if event.position.x < left {
837 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
838 }
839 if event.position.x > right {
840 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
841 }
842
843 editor.select(
844 SelectPhase::Update {
845 position: point_for_position.previous_valid,
846 goal_column: point_for_position.exact_unclipped.column(),
847 scroll_delta,
848 },
849 window,
850 cx,
851 );
852 }
853
854 fn mouse_moved(
855 editor: &mut Editor,
856 event: &MouseMoveEvent,
857 position_map: &PositionMap,
858 text_hitbox: &Hitbox,
859 gutter_hitbox: &Hitbox,
860 window: &mut Window,
861 cx: &mut Context<Editor>,
862 ) {
863 let modifiers = event.modifiers;
864 let gutter_hovered = gutter_hitbox.is_hovered(window);
865 editor.set_gutter_hovered(gutter_hovered, cx);
866
867 // Don't trigger hover popover if mouse is hovering over context menu
868 if text_hitbox.is_hovered(window) {
869 let point_for_position =
870 position_map.point_for_position(text_hitbox.bounds, event.position);
871
872 editor.update_hovered_link(
873 point_for_position,
874 &position_map.snapshot,
875 modifiers,
876 window,
877 cx,
878 );
879
880 if let Some(point) = point_for_position.as_valid() {
881 let anchor = position_map
882 .snapshot
883 .buffer_snapshot
884 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
885 hover_at(editor, Some(anchor), window, cx);
886 Self::update_visible_cursor(editor, point, position_map, window, cx);
887 } else {
888 hover_at(editor, None, window, cx);
889 }
890 } else {
891 editor.hide_hovered_link(cx);
892 hover_at(editor, None, window, cx);
893 if gutter_hovered {
894 cx.stop_propagation();
895 }
896 }
897 }
898
899 fn update_visible_cursor(
900 editor: &mut Editor,
901 point: DisplayPoint,
902 position_map: &PositionMap,
903 window: &mut Window,
904 cx: &mut Context<Editor>,
905 ) {
906 let snapshot = &position_map.snapshot;
907 let Some(hub) = editor.collaboration_hub() else {
908 return;
909 };
910 let start = snapshot.display_snapshot.clip_point(
911 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
912 Bias::Left,
913 );
914 let end = snapshot.display_snapshot.clip_point(
915 DisplayPoint::new(
916 point.row(),
917 (point.column() + 1).min(snapshot.line_len(point.row())),
918 ),
919 Bias::Right,
920 );
921
922 let range = snapshot
923 .buffer_snapshot
924 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
925 ..snapshot
926 .buffer_snapshot
927 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
928
929 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
930 return;
931 };
932 let key = crate::HoveredCursor {
933 replica_id: selection.replica_id,
934 selection_id: selection.selection.id,
935 };
936 editor.hovered_cursors.insert(
937 key.clone(),
938 cx.spawn_in(window, |editor, mut cx| async move {
939 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
940 editor
941 .update(&mut cx, |editor, cx| {
942 editor.hovered_cursors.remove(&key);
943 cx.notify();
944 })
945 .ok();
946 }),
947 );
948 cx.notify()
949 }
950
951 #[allow(clippy::too_many_arguments)]
952 fn layout_selections(
953 &self,
954 start_anchor: Anchor,
955 end_anchor: Anchor,
956 local_selections: &[Selection<Point>],
957 snapshot: &EditorSnapshot,
958 start_row: DisplayRow,
959 end_row: DisplayRow,
960 window: &mut Window,
961 cx: &mut App,
962 ) -> (
963 Vec<(PlayerColor, Vec<SelectionLayout>)>,
964 BTreeMap<DisplayRow, bool>,
965 Option<DisplayPoint>,
966 ) {
967 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
968 let mut active_rows = BTreeMap::new();
969 let mut newest_selection_head = None;
970 self.editor.update(cx, |editor, cx| {
971 if editor.show_local_selections {
972 let mut layouts = Vec::new();
973 let newest = editor.selections.newest(cx);
974 for selection in local_selections.iter().cloned() {
975 let is_empty = selection.start == selection.end;
976 let is_newest = selection == newest;
977
978 let layout = SelectionLayout::new(
979 selection,
980 editor.selections.line_mode,
981 editor.cursor_shape,
982 &snapshot.display_snapshot,
983 is_newest,
984 editor.leader_peer_id.is_none(),
985 None,
986 );
987 if is_newest {
988 newest_selection_head = Some(layout.head);
989 }
990
991 for row in cmp::max(layout.active_rows.start.0, start_row.0)
992 ..=cmp::min(layout.active_rows.end.0, end_row.0)
993 {
994 let contains_non_empty_selection =
995 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
996 *contains_non_empty_selection |= !is_empty;
997 }
998 layouts.push(layout);
999 }
1000
1001 let player = if editor.read_only(cx) {
1002 cx.theme().players().read_only()
1003 } else {
1004 self.style.local_player
1005 };
1006
1007 selections.push((player, layouts));
1008 }
1009
1010 if let Some(collaboration_hub) = &editor.collaboration_hub {
1011 // When following someone, render the local selections in their color.
1012 if let Some(leader_id) = editor.leader_peer_id {
1013 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1014 {
1015 if let Some(participant_index) = collaboration_hub
1016 .user_participant_indices(cx)
1017 .get(&collaborator.user_id)
1018 {
1019 if let Some((local_selection_style, _)) = selections.first_mut() {
1020 *local_selection_style = cx
1021 .theme()
1022 .players()
1023 .color_for_participant(participant_index.0);
1024 }
1025 }
1026 }
1027 }
1028
1029 let mut remote_selections = HashMap::default();
1030 for selection in snapshot.remote_selections_in_range(
1031 &(start_anchor..end_anchor),
1032 collaboration_hub.as_ref(),
1033 cx,
1034 ) {
1035 let selection_style =
1036 Self::get_participant_color(selection.participant_index, cx);
1037
1038 // Don't re-render the leader's selections, since the local selections
1039 // match theirs.
1040 if Some(selection.peer_id) == editor.leader_peer_id {
1041 continue;
1042 }
1043 let key = HoveredCursor {
1044 replica_id: selection.replica_id,
1045 selection_id: selection.selection.id,
1046 };
1047
1048 let is_shown =
1049 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1050
1051 remote_selections
1052 .entry(selection.replica_id)
1053 .or_insert((selection_style, Vec::new()))
1054 .1
1055 .push(SelectionLayout::new(
1056 selection.selection,
1057 selection.line_mode,
1058 selection.cursor_shape,
1059 &snapshot.display_snapshot,
1060 false,
1061 false,
1062 if is_shown { selection.user_name } else { None },
1063 ));
1064 }
1065
1066 selections.extend(remote_selections.into_values());
1067 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1068 let player = if editor.read_only(cx) {
1069 cx.theme().players().read_only()
1070 } else {
1071 self.style.local_player
1072 };
1073 let layouts = snapshot
1074 .buffer_snapshot
1075 .selections_in_range(&(start_anchor..end_anchor), true)
1076 .map(move |(_, line_mode, cursor_shape, selection)| {
1077 SelectionLayout::new(
1078 selection,
1079 line_mode,
1080 cursor_shape,
1081 &snapshot.display_snapshot,
1082 false,
1083 false,
1084 None,
1085 )
1086 })
1087 .collect::<Vec<_>>();
1088 selections.push((player, layouts));
1089 }
1090 });
1091 (selections, active_rows, newest_selection_head)
1092 }
1093
1094 fn collect_cursors(
1095 &self,
1096 snapshot: &EditorSnapshot,
1097 cx: &mut App,
1098 ) -> Vec<(DisplayPoint, Hsla)> {
1099 let editor = self.editor.read(cx);
1100 let mut cursors = Vec::new();
1101 let mut skip_local = false;
1102 let mut add_cursor = |anchor: Anchor, color| {
1103 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1104 };
1105 // Remote cursors
1106 if let Some(collaboration_hub) = &editor.collaboration_hub {
1107 for remote_selection in snapshot.remote_selections_in_range(
1108 &(Anchor::min()..Anchor::max()),
1109 collaboration_hub.deref(),
1110 cx,
1111 ) {
1112 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1113 add_cursor(remote_selection.selection.head(), color.cursor);
1114 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1115 skip_local = true;
1116 }
1117 }
1118 }
1119 // Local cursors
1120 if !skip_local {
1121 let color = cx.theme().players().local().cursor;
1122 editor.selections.disjoint.iter().for_each(|selection| {
1123 add_cursor(selection.head(), color);
1124 });
1125 if let Some(ref selection) = editor.selections.pending_anchor() {
1126 add_cursor(selection.head(), color);
1127 }
1128 }
1129 cursors
1130 }
1131
1132 #[allow(clippy::too_many_arguments)]
1133 fn layout_visible_cursors(
1134 &self,
1135 snapshot: &EditorSnapshot,
1136 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1137 block_start_rows: &HashSet<DisplayRow>,
1138 visible_display_row_range: Range<DisplayRow>,
1139 line_layouts: &[LineWithInvisibles],
1140 text_hitbox: &Hitbox,
1141 content_origin: gpui::Point<Pixels>,
1142 scroll_position: gpui::Point<f32>,
1143 scroll_pixel_position: gpui::Point<Pixels>,
1144 line_height: Pixels,
1145 em_width: Pixels,
1146 em_advance: Pixels,
1147 autoscroll_containing_element: bool,
1148 window: &mut Window,
1149 cx: &mut App,
1150 ) -> Vec<CursorLayout> {
1151 let mut autoscroll_bounds = None;
1152 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1153 let mut cursors = Vec::new();
1154 for (player_color, selections) in selections {
1155 for selection in selections {
1156 let cursor_position = selection.head;
1157
1158 let in_range = visible_display_row_range.contains(&cursor_position.row());
1159 if (selection.is_local && !editor.show_local_cursors(window, cx))
1160 || !in_range
1161 || block_start_rows.contains(&cursor_position.row())
1162 {
1163 continue;
1164 }
1165
1166 let cursor_row_layout = &line_layouts
1167 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1168 let cursor_column = cursor_position.column() as usize;
1169
1170 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1171 let mut block_width =
1172 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1173 if block_width == Pixels::ZERO {
1174 block_width = em_advance;
1175 }
1176 let block_text = if let CursorShape::Block = selection.cursor_shape {
1177 snapshot
1178 .grapheme_at(cursor_position)
1179 .or_else(|| {
1180 if cursor_column == 0 {
1181 snapshot.placeholder_text().and_then(|s| {
1182 s.graphemes(true).next().map(|s| s.to_string().into())
1183 })
1184 } else {
1185 None
1186 }
1187 })
1188 .and_then(|text| {
1189 let len = text.len();
1190
1191 let font = cursor_row_layout
1192 .font_id_for_index(cursor_column)
1193 .and_then(|cursor_font_id| {
1194 window.text_system().get_font_for_id(cursor_font_id)
1195 })
1196 .unwrap_or(self.style.text.font());
1197
1198 // Invert the text color for the block cursor. Ensure that the text
1199 // color is opaque enough to be visible against the background color.
1200 //
1201 // 0.75 is an arbitrary threshold to determine if the background color is
1202 // opaque enough to use as a text color.
1203 //
1204 // TODO: In the future we should ensure themes have a `text_inverse` color.
1205 let color = if cx.theme().colors().editor_background.a < 0.75 {
1206 match cx.theme().appearance {
1207 Appearance::Dark => Hsla::black(),
1208 Appearance::Light => Hsla::white(),
1209 }
1210 } else {
1211 cx.theme().colors().editor_background
1212 };
1213
1214 window
1215 .text_system()
1216 .shape_line(
1217 text,
1218 cursor_row_layout.font_size,
1219 &[TextRun {
1220 len,
1221 font,
1222 color,
1223 background_color: None,
1224 strikethrough: None,
1225 underline: None,
1226 }],
1227 )
1228 .log_err()
1229 })
1230 } else {
1231 None
1232 };
1233
1234 let x = cursor_character_x - scroll_pixel_position.x;
1235 let y = (cursor_position.row().as_f32()
1236 - scroll_pixel_position.y / line_height)
1237 * line_height;
1238 if selection.is_newest {
1239 editor.pixel_position_of_newest_cursor = Some(point(
1240 text_hitbox.origin.x + x + block_width / 2.,
1241 text_hitbox.origin.y + y + line_height / 2.,
1242 ));
1243
1244 if autoscroll_containing_element {
1245 let top = text_hitbox.origin.y
1246 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1247 * line_height;
1248 let left = text_hitbox.origin.x
1249 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1250 .max(0.)
1251 * em_width;
1252
1253 let bottom = text_hitbox.origin.y
1254 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1255 * line_height;
1256 let right = text_hitbox.origin.x
1257 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1258 * em_width;
1259
1260 autoscroll_bounds =
1261 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1262 }
1263 }
1264
1265 let mut cursor = CursorLayout {
1266 color: player_color.cursor,
1267 block_width,
1268 origin: point(x, y),
1269 line_height,
1270 shape: selection.cursor_shape,
1271 block_text,
1272 cursor_name: None,
1273 };
1274 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1275 string: name,
1276 color: self.style.background,
1277 is_top_row: cursor_position.row().0 == 0,
1278 });
1279 cursor.layout(content_origin, cursor_name, window, cx);
1280 cursors.push(cursor);
1281 }
1282 }
1283 cursors
1284 });
1285
1286 if let Some(bounds) = autoscroll_bounds {
1287 window.request_autoscroll(bounds);
1288 }
1289
1290 cursor_layouts
1291 }
1292
1293 fn layout_scrollbars(
1294 &self,
1295 snapshot: &EditorSnapshot,
1296 scrollbar_range_data: ScrollbarRangeData,
1297 scroll_position: gpui::Point<f32>,
1298 non_visible_cursors: bool,
1299 window: &mut Window,
1300 cx: &mut App,
1301 ) -> AxisPair<Option<ScrollbarLayout>> {
1302 let letter_size = scrollbar_range_data.letter_size;
1303 let text_units_per_page = axis_pair(
1304 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1305 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1306 );
1307
1308 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1309 let show_scrollbars = self.editor.read(cx).show_scrollbars
1310 && match scrollbar_settings.show {
1311 ShowScrollbar::Auto => {
1312 let editor = self.editor.read(cx);
1313 let is_singleton = editor.is_singleton(cx);
1314 // Git
1315 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1316 ||
1317 // Buffer Search Results
1318 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1319 ||
1320 // Selected Symbol Occurrences
1321 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1322 ||
1323 // Diagnostics
1324 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1325 ||
1326 // Cursors out of sight
1327 non_visible_cursors
1328 ||
1329 // Scrollmanager
1330 editor.scroll_manager.scrollbars_visible()
1331 }
1332 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1333 ShowScrollbar::Always => true,
1334 ShowScrollbar::Never => false,
1335 };
1336
1337 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1338
1339 if snapshot.mode != EditorMode::Full {
1340 return axis_pair(None, None);
1341 }
1342
1343 let visible_range = axis_pair(
1344 axes.horizontal
1345 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1346 axes.vertical
1347 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1348 );
1349
1350 // If a drag took place after we started dragging the scrollbar,
1351 // cancel the scrollbar drag.
1352 if cx.has_active_drag() {
1353 self.editor.update(cx, |editor, cx| {
1354 editor
1355 .scroll_manager
1356 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1357 editor
1358 .scroll_manager
1359 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1360 });
1361 }
1362
1363 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1364
1365 let track_bounds = axis_pair(
1366 axes.horizontal.then(|| {
1367 Bounds::from_corners(
1368 point(
1369 text_bounds.bottom_left().x,
1370 text_bounds.bottom_left().y - self.style.scrollbar_width,
1371 ),
1372 point(
1373 text_bounds.bottom_right().x
1374 - if axes.vertical {
1375 self.style.scrollbar_width
1376 } else {
1377 px(0.)
1378 },
1379 text_bounds.bottom_right().y,
1380 ),
1381 )
1382 }),
1383 axes.vertical.then(|| {
1384 Bounds::from_corners(
1385 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1386 text_bounds.bottom_right(),
1387 )
1388 }),
1389 );
1390
1391 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1392 let total_text_units = axis_pair(
1393 Some(scroll_range_size.width / letter_size.width),
1394 Some(scroll_range_size.height / letter_size.height),
1395 );
1396
1397 let thumb_size = axis_pair(
1398 total_text_units
1399 .horizontal
1400 .zip(track_bounds.horizontal)
1401 .and_then(|(total_text_units_x, track_bounds_x)| {
1402 if text_units_per_page.horizontal >= total_text_units_x {
1403 return None;
1404 }
1405
1406 let thumb_percent =
1407 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1408
1409 Some(track_bounds_x.size.width * thumb_percent)
1410 }),
1411 total_text_units.vertical.zip(track_bounds.vertical).map(
1412 |(total_text_units_y, track_bounds_y)| {
1413 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1414
1415 track_bounds_y.size.height * thumb_percent
1416 },
1417 ),
1418 );
1419
1420 // NOTE: Space not taken by track bounds divided by text units not on screen
1421 let text_unit_size = axis_pair(
1422 thumb_size
1423 .horizontal
1424 .zip(track_bounds.horizontal)
1425 .zip(total_text_units.horizontal)
1426 .map(|((thumb_size, track_bounds), total_text_units)| {
1427 (track_bounds.size.width - thumb_size)
1428 / (total_text_units - text_units_per_page.horizontal).max(0.)
1429 }),
1430 thumb_size
1431 .vertical
1432 .zip(track_bounds.vertical)
1433 .zip(total_text_units.vertical)
1434 .map(|((thumb_size, track_bounds), total_text_units)| {
1435 (track_bounds.size.height - thumb_size)
1436 / (total_text_units - text_units_per_page.vertical).max(0.)
1437 }),
1438 );
1439
1440 let horizontal_scrollbar = track_bounds
1441 .horizontal
1442 .zip(visible_range.horizontal)
1443 .zip(text_unit_size.horizontal)
1444 .zip(thumb_size.horizontal)
1445 .map(
1446 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1447 hitbox: window.insert_hitbox(track_bounds, false),
1448 visible_range,
1449 text_unit_size,
1450 visible: show_scrollbars,
1451 thumb_size,
1452 axis: Axis::Horizontal,
1453 },
1454 );
1455
1456 let vertical_scrollbar = track_bounds
1457 .vertical
1458 .zip(visible_range.vertical)
1459 .zip(text_unit_size.vertical)
1460 .zip(thumb_size.vertical)
1461 .map(
1462 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1463 hitbox: window.insert_hitbox(track_bounds, false),
1464 visible_range,
1465 text_unit_size,
1466 visible: show_scrollbars,
1467 thumb_size,
1468 axis: Axis::Vertical,
1469 },
1470 );
1471
1472 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1473 }
1474
1475 #[allow(clippy::too_many_arguments)]
1476 fn prepaint_crease_toggles(
1477 &self,
1478 crease_toggles: &mut [Option<AnyElement>],
1479 line_height: Pixels,
1480 gutter_dimensions: &GutterDimensions,
1481 gutter_settings: crate::editor_settings::Gutter,
1482 scroll_pixel_position: gpui::Point<Pixels>,
1483 gutter_hitbox: &Hitbox,
1484 window: &mut Window,
1485 cx: &mut App,
1486 ) {
1487 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1488 if let Some(crease_toggle) = crease_toggle {
1489 debug_assert!(gutter_settings.folds);
1490 let available_space = size(
1491 AvailableSpace::MinContent,
1492 AvailableSpace::Definite(line_height * 0.55),
1493 );
1494 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1495
1496 let position = point(
1497 gutter_dimensions.width - gutter_dimensions.right_padding,
1498 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1499 );
1500 let centering_offset = point(
1501 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1502 (line_height - crease_toggle_size.height) / 2.,
1503 );
1504 let origin = gutter_hitbox.origin + position + centering_offset;
1505 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1506 }
1507 }
1508 }
1509
1510 #[allow(clippy::too_many_arguments)]
1511 fn prepaint_crease_trailers(
1512 &self,
1513 trailers: Vec<Option<AnyElement>>,
1514 lines: &[LineWithInvisibles],
1515 line_height: Pixels,
1516 content_origin: gpui::Point<Pixels>,
1517 scroll_pixel_position: gpui::Point<Pixels>,
1518 em_width: Pixels,
1519 window: &mut Window,
1520 cx: &mut App,
1521 ) -> Vec<Option<CreaseTrailerLayout>> {
1522 trailers
1523 .into_iter()
1524 .enumerate()
1525 .map(|(ix, element)| {
1526 let mut element = element?;
1527 let available_space = size(
1528 AvailableSpace::MinContent,
1529 AvailableSpace::Definite(line_height),
1530 );
1531 let size = element.layout_as_root(available_space, window, cx);
1532
1533 let line = &lines[ix];
1534 let padding = if line.width == Pixels::ZERO {
1535 Pixels::ZERO
1536 } else {
1537 4. * em_width
1538 };
1539 let position = point(
1540 scroll_pixel_position.x + line.width + padding,
1541 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1542 );
1543 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1544 let origin = content_origin + position + centering_offset;
1545 element.prepaint_as_root(origin, available_space, window, cx);
1546 Some(CreaseTrailerLayout {
1547 element,
1548 bounds: Bounds::new(origin, size),
1549 })
1550 })
1551 .collect()
1552 }
1553
1554 // Folds contained in a hunk are ignored apart from shrinking visual size
1555 // If a fold contains any hunks then that fold line is marked as modified
1556 fn layout_gutter_diff_hunks(
1557 &self,
1558 line_height: Pixels,
1559 gutter_hitbox: &Hitbox,
1560 display_rows: Range<DisplayRow>,
1561 snapshot: &EditorSnapshot,
1562 window: &mut Window,
1563 cx: &mut App,
1564 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1565 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1566 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1567
1568 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1569 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1570
1571 for hunk in snapshot
1572 .buffer_snapshot
1573 .diff_hunks_in_range(buffer_start..buffer_end)
1574 {
1575 if folded_buffers.contains(&hunk.buffer_id) {
1576 continue;
1577 }
1578
1579 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1580 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1581
1582 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1583 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1584
1585 let display_hunk = if hunk_display_start.column() != 0 {
1586 DisplayDiffHunk::Folded {
1587 display_row: hunk_display_start.row(),
1588 }
1589 } else {
1590 let mut end_row = hunk_display_end.row();
1591 if hunk_display_end.column() > 0 {
1592 end_row.0 += 1;
1593 }
1594 DisplayDiffHunk::Unfolded {
1595 status: hunk.status(),
1596 diff_base_byte_range: hunk.diff_base_byte_range,
1597 display_row_range: hunk_display_start.row()..end_row,
1598 multi_buffer_range: Anchor::range_in_buffer(
1599 hunk.excerpt_id,
1600 hunk.buffer_id,
1601 hunk.buffer_range,
1602 ),
1603 }
1604 };
1605
1606 display_hunks.push((display_hunk, None));
1607 }
1608
1609 let git_gutter_setting = ProjectSettings::get_global(cx)
1610 .git
1611 .git_gutter
1612 .unwrap_or_default();
1613 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1614 for (hunk, hitbox) in &mut display_hunks {
1615 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1616 let hunk_bounds =
1617 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1618 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1619 }
1620 }
1621 }
1622
1623 display_hunks
1624 }
1625
1626 #[allow(clippy::too_many_arguments)]
1627 fn layout_inline_blame(
1628 &self,
1629 display_row: DisplayRow,
1630 row_info: &RowInfo,
1631 line_layout: &LineWithInvisibles,
1632 crease_trailer: Option<&CreaseTrailerLayout>,
1633 em_width: Pixels,
1634 content_origin: gpui::Point<Pixels>,
1635 scroll_pixel_position: gpui::Point<Pixels>,
1636 line_height: Pixels,
1637 window: &mut Window,
1638 cx: &mut App,
1639 ) -> Option<AnyElement> {
1640 if !self
1641 .editor
1642 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1643 {
1644 return None;
1645 }
1646
1647 let workspace = self
1648 .editor
1649 .read(cx)
1650 .workspace
1651 .as_ref()
1652 .map(|(w, _)| w.clone());
1653
1654 let editor = self.editor.read(cx);
1655 let blame = editor.blame.clone()?;
1656 let padding = {
1657 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1658 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1659
1660 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1661
1662 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1663 match &inline_completion.completion {
1664 InlineCompletion::Edit {
1665 display_mode: EditDisplayMode::TabAccept,
1666 ..
1667 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1668 _ => {}
1669 }
1670 }
1671
1672 padding * em_width
1673 };
1674
1675 let blame_entry = blame
1676 .update(cx, |blame, cx| {
1677 blame.blame_for_rows(&[*row_info], cx).next()
1678 })
1679 .flatten()?;
1680
1681 let mut element =
1682 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1683
1684 let start_y = content_origin.y
1685 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1686
1687 let start_x = {
1688 let line_end = if let Some(crease_trailer) = crease_trailer {
1689 crease_trailer.bounds.right()
1690 } else {
1691 content_origin.x - scroll_pixel_position.x + line_layout.width
1692 };
1693
1694 let padded_line_end = line_end + padding;
1695
1696 let min_column_in_pixels = ProjectSettings::get_global(cx)
1697 .git
1698 .inline_blame
1699 .and_then(|settings| settings.min_column)
1700 .map(|col| self.column_pixels(col as usize, window, cx))
1701 .unwrap_or(px(0.));
1702 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1703
1704 cmp::max(padded_line_end, min_start)
1705 };
1706
1707 let absolute_offset = point(start_x, start_y);
1708 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1709
1710 Some(element)
1711 }
1712
1713 #[allow(clippy::too_many_arguments)]
1714 fn layout_blame_entries(
1715 &self,
1716 buffer_rows: &[RowInfo],
1717 em_width: Pixels,
1718 scroll_position: gpui::Point<f32>,
1719 line_height: Pixels,
1720 gutter_hitbox: &Hitbox,
1721 max_width: Option<Pixels>,
1722 window: &mut Window,
1723 cx: &mut App,
1724 ) -> Option<Vec<AnyElement>> {
1725 if !self
1726 .editor
1727 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1728 {
1729 return None;
1730 }
1731
1732 let blame = self.editor.read(cx).blame.clone()?;
1733 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1734 blame.blame_for_rows(buffer_rows, cx).collect()
1735 });
1736
1737 let width = if let Some(max_width) = max_width {
1738 AvailableSpace::Definite(max_width)
1739 } else {
1740 AvailableSpace::MaxContent
1741 };
1742 let scroll_top = scroll_position.y * line_height;
1743 let start_x = em_width;
1744
1745 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1746
1747 let shaped_lines = blamed_rows
1748 .into_iter()
1749 .enumerate()
1750 .flat_map(|(ix, blame_entry)| {
1751 if let Some(blame_entry) = blame_entry {
1752 let mut element = render_blame_entry(
1753 ix,
1754 &blame,
1755 blame_entry,
1756 &self.style,
1757 &mut last_used_color,
1758 self.editor.clone(),
1759 cx,
1760 );
1761
1762 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1763 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1764
1765 element.prepaint_as_root(
1766 absolute_offset,
1767 size(width, AvailableSpace::MinContent),
1768 window,
1769 cx,
1770 );
1771
1772 Some(element)
1773 } else {
1774 None
1775 }
1776 })
1777 .collect();
1778
1779 Some(shaped_lines)
1780 }
1781
1782 #[allow(clippy::too_many_arguments)]
1783 fn layout_indent_guides(
1784 &self,
1785 content_origin: gpui::Point<Pixels>,
1786 text_origin: gpui::Point<Pixels>,
1787 visible_buffer_range: Range<MultiBufferRow>,
1788 scroll_pixel_position: gpui::Point<Pixels>,
1789 line_height: Pixels,
1790 snapshot: &DisplaySnapshot,
1791 window: &mut Window,
1792 cx: &mut App,
1793 ) -> Option<Vec<IndentGuideLayout>> {
1794 let indent_guides = self.editor.update(cx, |editor, cx| {
1795 editor.indent_guides(visible_buffer_range, snapshot, cx)
1796 })?;
1797
1798 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1799 editor
1800 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1801 .unwrap_or_default()
1802 });
1803
1804 Some(
1805 indent_guides
1806 .into_iter()
1807 .enumerate()
1808 .filter_map(|(i, indent_guide)| {
1809 let single_indent_width =
1810 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1811 let total_width = single_indent_width * indent_guide.depth as f32;
1812 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1813 if start_x >= text_origin.x {
1814 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1815 indent_guide.start_row..indent_guide.end_row,
1816 line_height,
1817 snapshot,
1818 );
1819
1820 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1821
1822 Some(IndentGuideLayout {
1823 origin: point(start_x, start_y),
1824 length,
1825 single_indent_width,
1826 depth: indent_guide.depth,
1827 active: active_indent_guide_indices.contains(&i),
1828 settings: indent_guide.settings,
1829 })
1830 } else {
1831 None
1832 }
1833 })
1834 .collect(),
1835 )
1836 }
1837
1838 fn calculate_indent_guide_bounds(
1839 row_range: Range<MultiBufferRow>,
1840 line_height: Pixels,
1841 snapshot: &DisplaySnapshot,
1842 ) -> (gpui::Pixels, gpui::Pixels) {
1843 let start_point = Point::new(row_range.start.0, 0);
1844 let end_point = Point::new(row_range.end.0, 0);
1845
1846 let row_range = start_point.to_display_point(snapshot).row()
1847 ..end_point.to_display_point(snapshot).row();
1848
1849 let mut prev_line = start_point;
1850 prev_line.row = prev_line.row.saturating_sub(1);
1851 let prev_line = prev_line.to_display_point(snapshot).row();
1852
1853 let mut cons_line = end_point;
1854 cons_line.row += 1;
1855 let cons_line = cons_line.to_display_point(snapshot).row();
1856
1857 let mut offset_y = row_range.start.0 as f32 * line_height;
1858 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1859
1860 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1861 if row_range.end == cons_line {
1862 length += line_height;
1863 }
1864
1865 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1866 // we want to extend the indent guide to the start of the block.
1867 let mut block_height = 0;
1868 let mut block_offset = 0;
1869 let mut found_excerpt_header = false;
1870 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1871 if matches!(block, Block::ExcerptBoundary { .. }) {
1872 found_excerpt_header = true;
1873 break;
1874 }
1875 block_offset += block.height();
1876 block_height += block.height();
1877 }
1878 if !found_excerpt_header {
1879 offset_y -= block_offset as f32 * line_height;
1880 length += block_height as f32 * line_height;
1881 }
1882
1883 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1884 // we want to ensure that the indent guide stops before the excerpt header.
1885 let mut block_height = 0;
1886 let mut found_excerpt_header = false;
1887 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1888 if matches!(block, Block::ExcerptBoundary { .. }) {
1889 found_excerpt_header = true;
1890 }
1891 block_height += block.height();
1892 }
1893 if found_excerpt_header {
1894 length -= block_height as f32 * line_height;
1895 }
1896
1897 (offset_y, length)
1898 }
1899
1900 #[allow(clippy::too_many_arguments)]
1901 fn layout_run_indicators(
1902 &self,
1903 line_height: Pixels,
1904 range: Range<DisplayRow>,
1905 scroll_pixel_position: gpui::Point<Pixels>,
1906 gutter_dimensions: &GutterDimensions,
1907 gutter_hitbox: &Hitbox,
1908 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1909 snapshot: &EditorSnapshot,
1910 window: &mut Window,
1911 cx: &mut App,
1912 ) -> Vec<AnyElement> {
1913 self.editor.update(cx, |editor, cx| {
1914 let active_task_indicator_row =
1915 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1916 deployed_from_indicator,
1917 actions,
1918 ..
1919 })) = editor.context_menu.borrow().as_ref()
1920 {
1921 actions
1922 .tasks
1923 .as_ref()
1924 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1925 .or(*deployed_from_indicator)
1926 } else {
1927 None
1928 };
1929
1930 let offset_range_start = snapshot
1931 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1932 .to_offset(&snapshot.buffer_snapshot);
1933 let offset_range_end = snapshot
1934 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1935 .to_offset(&snapshot.buffer_snapshot);
1936
1937 editor
1938 .tasks
1939 .iter()
1940 .filter_map(|(_, tasks)| {
1941 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1942 return None;
1943 }
1944 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1945 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1946 let buffer_folded = snapshot
1947 .buffer_snapshot
1948 .buffer_line_for_row(multibuffer_row)
1949 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1950 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1951 .unwrap_or(false);
1952 if buffer_folded {
1953 return None;
1954 }
1955
1956 if snapshot.is_line_folded(multibuffer_row) {
1957 // Skip folded indicators, unless it's the starting line of a fold.
1958 if multibuffer_row
1959 .0
1960 .checked_sub(1)
1961 .map_or(false, |previous_row| {
1962 snapshot.is_line_folded(MultiBufferRow(previous_row))
1963 })
1964 {
1965 return None;
1966 }
1967 }
1968 let display_row = multibuffer_point.to_display_point(snapshot).row();
1969 let button = editor.render_run_indicator(
1970 &self.style,
1971 Some(display_row) == active_task_indicator_row,
1972 display_row,
1973 cx,
1974 );
1975
1976 let button = prepaint_gutter_button(
1977 button,
1978 display_row,
1979 line_height,
1980 gutter_dimensions,
1981 scroll_pixel_position,
1982 gutter_hitbox,
1983 rows_with_hunk_bounds,
1984 window,
1985 cx,
1986 );
1987 Some(button)
1988 })
1989 .collect_vec()
1990 })
1991 }
1992
1993 #[allow(clippy::too_many_arguments)]
1994 fn layout_code_actions_indicator(
1995 &self,
1996 line_height: Pixels,
1997 newest_selection_head: DisplayPoint,
1998 scroll_pixel_position: gpui::Point<Pixels>,
1999 gutter_dimensions: &GutterDimensions,
2000 gutter_hitbox: &Hitbox,
2001 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2002 window: &mut Window,
2003 cx: &mut App,
2004 ) -> Option<AnyElement> {
2005 let mut active = false;
2006 let mut button = None;
2007 let row = newest_selection_head.row();
2008 self.editor.update(cx, |editor, cx| {
2009 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2010 deployed_from_indicator,
2011 ..
2012 })) = editor.context_menu.borrow().as_ref()
2013 {
2014 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2015 };
2016 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2017 });
2018
2019 let button = prepaint_gutter_button(
2020 button?,
2021 row,
2022 line_height,
2023 gutter_dimensions,
2024 scroll_pixel_position,
2025 gutter_hitbox,
2026 rows_with_hunk_bounds,
2027 window,
2028 cx,
2029 );
2030
2031 Some(button)
2032 }
2033
2034 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2035 if let Some(index) = participant_index {
2036 cx.theme().players().color_for_participant(index.0)
2037 } else {
2038 cx.theme().players().absent()
2039 }
2040 }
2041
2042 fn calculate_relative_line_numbers(
2043 &self,
2044 snapshot: &EditorSnapshot,
2045 rows: &Range<DisplayRow>,
2046 relative_to: Option<DisplayRow>,
2047 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2048 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2049 let Some(relative_to) = relative_to else {
2050 return relative_rows;
2051 };
2052
2053 let start = rows.start.min(relative_to);
2054 let end = rows.end.max(relative_to);
2055
2056 let buffer_rows = snapshot
2057 .row_infos(start)
2058 .take(1 + end.minus(start) as usize)
2059 .collect::<Vec<_>>();
2060
2061 let head_idx = relative_to.minus(start);
2062 let mut delta = 1;
2063 let mut i = head_idx + 1;
2064 while i < buffer_rows.len() as u32 {
2065 if buffer_rows[i as usize].buffer_row.is_some() {
2066 if rows.contains(&DisplayRow(i + start.0)) {
2067 relative_rows.insert(DisplayRow(i + start.0), delta);
2068 }
2069 delta += 1;
2070 }
2071 i += 1;
2072 }
2073 delta = 1;
2074 i = head_idx.min(buffer_rows.len() as u32 - 1);
2075 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2076 i -= 1;
2077 }
2078
2079 while i > 0 {
2080 i -= 1;
2081 if buffer_rows[i as usize].buffer_row.is_some() {
2082 if rows.contains(&DisplayRow(i + start.0)) {
2083 relative_rows.insert(DisplayRow(i + start.0), delta);
2084 }
2085 delta += 1;
2086 }
2087 }
2088
2089 relative_rows
2090 }
2091
2092 #[allow(clippy::too_many_arguments)]
2093 fn layout_line_numbers(
2094 &self,
2095 gutter_hitbox: Option<&Hitbox>,
2096 gutter_dimensions: GutterDimensions,
2097 line_height: Pixels,
2098 scroll_position: gpui::Point<f32>,
2099 rows: Range<DisplayRow>,
2100 buffer_rows: &[RowInfo],
2101 newest_selection_head: Option<DisplayPoint>,
2102 snapshot: &EditorSnapshot,
2103 window: &mut Window,
2104 cx: &mut App,
2105 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2106 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2107 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2108 });
2109 if !include_line_numbers {
2110 return Arc::default();
2111 }
2112
2113 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2114 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2115 let newest = editor.selections.newest::<Point>(cx);
2116 SelectionLayout::new(
2117 newest,
2118 editor.selections.line_mode,
2119 editor.cursor_shape,
2120 &snapshot.display_snapshot,
2121 true,
2122 true,
2123 None,
2124 )
2125 .head
2126 });
2127 let is_relative = editor.should_use_relative_line_numbers(cx);
2128 (newest_selection_head, is_relative)
2129 });
2130
2131 let relative_to = if is_relative {
2132 Some(newest_selection_head.row())
2133 } else {
2134 None
2135 };
2136 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2137 let mut line_number = String::new();
2138 let line_numbers = buffer_rows
2139 .into_iter()
2140 .enumerate()
2141 .flat_map(|(ix, row_info)| {
2142 let display_row = DisplayRow(rows.start.0 + ix as u32);
2143 line_number.clear();
2144 let non_relative_number = row_info.buffer_row? + 1;
2145 let number = relative_rows
2146 .get(&display_row)
2147 .unwrap_or(&non_relative_number);
2148 write!(&mut line_number, "{number}").unwrap();
2149 if row_info.diff_status == Some(DiffHunkStatus::Removed) {
2150 return None;
2151 }
2152
2153 let color = cx.theme().colors().editor_line_number;
2154 let shaped_line = self
2155 .shape_line_number(SharedString::from(&line_number), color, window)
2156 .log_err()?;
2157 let scroll_top = scroll_position.y * line_height;
2158 let line_origin = gutter_hitbox.map(|hitbox| {
2159 hitbox.origin
2160 + point(
2161 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2162 ix as f32 * line_height - (scroll_top % line_height),
2163 )
2164 });
2165
2166 #[cfg(not(test))]
2167 let hitbox = line_origin.map(|line_origin| {
2168 window.insert_hitbox(
2169 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2170 false,
2171 )
2172 });
2173 #[cfg(test)]
2174 let hitbox = {
2175 let _ = line_origin;
2176 None
2177 };
2178
2179 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2180 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2181 let line_number = LineNumberLayout {
2182 shaped_line,
2183 hitbox,
2184 display_row,
2185 };
2186 Some((multi_buffer_row, line_number))
2187 })
2188 .collect();
2189 Arc::new(line_numbers)
2190 }
2191
2192 fn layout_crease_toggles(
2193 &self,
2194 rows: Range<DisplayRow>,
2195 row_infos: &[RowInfo],
2196 active_rows: &BTreeMap<DisplayRow, bool>,
2197 snapshot: &EditorSnapshot,
2198 window: &mut Window,
2199 cx: &mut App,
2200 ) -> Vec<Option<AnyElement>> {
2201 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2202 && snapshot.mode == EditorMode::Full
2203 && self.editor.read(cx).is_singleton(cx);
2204 if include_fold_statuses {
2205 row_infos
2206 .into_iter()
2207 .enumerate()
2208 .map(|(ix, info)| {
2209 let row = info.multibuffer_row?;
2210 let display_row = DisplayRow(rows.start.0 + ix as u32);
2211 let active = active_rows.contains_key(&display_row);
2212
2213 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2214 })
2215 .collect()
2216 } else {
2217 Vec::new()
2218 }
2219 }
2220
2221 fn layout_crease_trailers(
2222 &self,
2223 buffer_rows: impl IntoIterator<Item = RowInfo>,
2224 snapshot: &EditorSnapshot,
2225 window: &mut Window,
2226 cx: &mut App,
2227 ) -> Vec<Option<AnyElement>> {
2228 buffer_rows
2229 .into_iter()
2230 .map(|row_info| {
2231 if let Some(row) = row_info.multibuffer_row {
2232 snapshot.render_crease_trailer(row, window, cx)
2233 } else {
2234 None
2235 }
2236 })
2237 .collect()
2238 }
2239
2240 fn layout_lines(
2241 rows: Range<DisplayRow>,
2242 snapshot: &EditorSnapshot,
2243 style: &EditorStyle,
2244 editor_width: Pixels,
2245 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2246 window: &mut Window,
2247 cx: &mut App,
2248 ) -> Vec<LineWithInvisibles> {
2249 if rows.start >= rows.end {
2250 return Vec::new();
2251 }
2252
2253 // Show the placeholder when the editor is empty
2254 if snapshot.is_empty() {
2255 let font_size = style.text.font_size.to_pixels(window.rem_size());
2256 let placeholder_color = cx.theme().colors().text_placeholder;
2257 let placeholder_text = snapshot.placeholder_text();
2258
2259 let placeholder_lines = placeholder_text
2260 .as_ref()
2261 .map_or("", AsRef::as_ref)
2262 .split('\n')
2263 .skip(rows.start.0 as usize)
2264 .chain(iter::repeat(""))
2265 .take(rows.len());
2266 placeholder_lines
2267 .filter_map(move |line| {
2268 let run = TextRun {
2269 len: line.len(),
2270 font: style.text.font(),
2271 color: placeholder_color,
2272 background_color: None,
2273 underline: Default::default(),
2274 strikethrough: None,
2275 };
2276 window
2277 .text_system()
2278 .shape_line(line.to_string().into(), font_size, &[run])
2279 .log_err()
2280 })
2281 .map(|line| LineWithInvisibles {
2282 width: line.width,
2283 len: line.len,
2284 fragments: smallvec![LineFragment::Text(line)],
2285 invisibles: Vec::new(),
2286 font_size,
2287 })
2288 .collect()
2289 } else {
2290 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2291 LineWithInvisibles::from_chunks(
2292 chunks,
2293 &style,
2294 MAX_LINE_LEN,
2295 rows.len(),
2296 snapshot.mode,
2297 editor_width,
2298 is_row_soft_wrapped,
2299 window,
2300 cx,
2301 )
2302 }
2303 }
2304
2305 #[allow(clippy::too_many_arguments)]
2306 fn prepaint_lines(
2307 &self,
2308 start_row: DisplayRow,
2309 line_layouts: &mut [LineWithInvisibles],
2310 line_height: Pixels,
2311 scroll_pixel_position: gpui::Point<Pixels>,
2312 content_origin: gpui::Point<Pixels>,
2313 window: &mut Window,
2314 cx: &mut App,
2315 ) -> SmallVec<[AnyElement; 1]> {
2316 let mut line_elements = SmallVec::new();
2317 for (ix, line) in line_layouts.iter_mut().enumerate() {
2318 let row = start_row + DisplayRow(ix as u32);
2319 line.prepaint(
2320 line_height,
2321 scroll_pixel_position,
2322 row,
2323 content_origin,
2324 &mut line_elements,
2325 window,
2326 cx,
2327 );
2328 }
2329 line_elements
2330 }
2331
2332 #[allow(clippy::too_many_arguments)]
2333 fn render_block(
2334 &self,
2335 block: &Block,
2336 available_width: AvailableSpace,
2337 block_id: BlockId,
2338 block_row_start: DisplayRow,
2339 snapshot: &EditorSnapshot,
2340 text_x: Pixels,
2341 rows: &Range<DisplayRow>,
2342 line_layouts: &[LineWithInvisibles],
2343 gutter_dimensions: &GutterDimensions,
2344 line_height: Pixels,
2345 em_width: Pixels,
2346 text_hitbox: &Hitbox,
2347 editor_width: Pixels,
2348 scroll_width: &mut Pixels,
2349 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2350 selections: &[Selection<Point>],
2351 selected_buffer_ids: &Vec<BufferId>,
2352 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2353 sticky_header_excerpt_id: Option<ExcerptId>,
2354 window: &mut Window,
2355 cx: &mut App,
2356 ) -> (AnyElement, Size<Pixels>) {
2357 let mut element = match block {
2358 Block::Custom(block) => {
2359 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2360 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2361 let align_to = block_start.to_display_point(snapshot);
2362 let anchor_x = text_x
2363 + if rows.contains(&align_to.row()) {
2364 line_layouts[align_to.row().minus(rows.start) as usize]
2365 .x_for_index(align_to.column() as usize)
2366 } else {
2367 layout_line(
2368 align_to.row(),
2369 snapshot,
2370 &self.style,
2371 editor_width,
2372 is_row_soft_wrapped,
2373 window,
2374 cx,
2375 )
2376 .x_for_index(align_to.column() as usize)
2377 };
2378
2379 let selected = selections
2380 .binary_search_by(|selection| {
2381 if selection.end <= block_start {
2382 Ordering::Less
2383 } else if selection.start >= block_end {
2384 Ordering::Greater
2385 } else {
2386 Ordering::Equal
2387 }
2388 })
2389 .is_ok();
2390
2391 div()
2392 .size_full()
2393 .child(block.render(&mut BlockContext {
2394 window,
2395 app: cx,
2396 anchor_x,
2397 gutter_dimensions,
2398 line_height,
2399 em_width,
2400 block_id,
2401 selected,
2402 max_width: text_hitbox.size.width.max(*scroll_width),
2403 editor_style: &self.style,
2404 }))
2405 .into_any()
2406 }
2407
2408 Block::FoldedBuffer {
2409 first_excerpt,
2410 prev_excerpt,
2411 show_excerpt_controls,
2412 height,
2413 } => {
2414 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2415 let icon_offset = gutter_dimensions.width
2416 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2417 let mut result = v_flex().id(block_id).w_full();
2418
2419 if let Some(prev_excerpt) = prev_excerpt {
2420 if *show_excerpt_controls {
2421 result =
2422 result.child(
2423 h_flex()
2424 .id("expand_down_hit_area")
2425 .w(icon_offset)
2426 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2427 * window.line_height())
2428 .flex_none()
2429 .justify_end()
2430 .child(self.render_expand_excerpt_button(
2431 IconName::ArrowDownFromLine,
2432 None,
2433 cx,
2434 ))
2435 .on_click(window.listener_for(&self.editor, {
2436 let excerpt_id = prev_excerpt.id;
2437 let direction = ExpandExcerptDirection::Down;
2438 move |editor, _, _, cx| {
2439 editor.expand_excerpt(excerpt_id, direction, cx);
2440 cx.stop_propagation();
2441 }
2442 })),
2443 );
2444 }
2445 }
2446
2447 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2448 result
2449 .child(self.render_buffer_header(
2450 first_excerpt,
2451 true,
2452 selected,
2453 jump_data,
2454 window,
2455 cx,
2456 ))
2457 .into_any_element()
2458 }
2459
2460 Block::ExcerptBoundary {
2461 prev_excerpt,
2462 next_excerpt,
2463 show_excerpt_controls,
2464 height,
2465 starts_new_buffer,
2466 } => {
2467 let icon_offset = gutter_dimensions.width
2468 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2469 let header_height =
2470 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2471 let color = cx.theme().colors().clone();
2472 let hover_color = color.border_variant.opacity(0.5);
2473 let focus_handle = self.editor.focus_handle(cx).clone();
2474
2475 let mut result = v_flex().id(block_id).w_full();
2476 let expand_area = |id: SharedString| {
2477 h_flex()
2478 .id(id)
2479 .w_full()
2480 .cursor_pointer()
2481 .block_mouse_down()
2482 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2483 .hover(|style| style.bg(hover_color))
2484 .tooltip({
2485 let focus_handle = focus_handle.clone();
2486 move |window, cx| {
2487 Tooltip::for_action_in(
2488 "Expand Excerpt",
2489 &ExpandExcerpts { lines: 0 },
2490 &focus_handle,
2491 window,
2492 cx,
2493 )
2494 }
2495 })
2496 };
2497
2498 if let Some(prev_excerpt) = prev_excerpt {
2499 if *show_excerpt_controls {
2500 let group_name = "expand-down";
2501
2502 result = result.child(
2503 expand_area(format!("block-{}-down", block_id).into())
2504 .group(group_name)
2505 .child(
2506 h_flex()
2507 .w(icon_offset)
2508 .h(header_height)
2509 .flex_none()
2510 .justify_end()
2511 .child(self.render_expand_excerpt_button(
2512 IconName::ArrowDownFromLine,
2513 Some(group_name.to_string()),
2514 cx,
2515 )),
2516 )
2517 .on_click(window.listener_for(&self.editor, {
2518 let excerpt_id = prev_excerpt.id;
2519 let direction = ExpandExcerptDirection::Down;
2520 move |editor, _, _, cx| {
2521 editor.expand_excerpt(excerpt_id, direction, cx);
2522 cx.stop_propagation();
2523 }
2524 })),
2525 );
2526 }
2527 }
2528
2529 if let Some(next_excerpt) = next_excerpt {
2530 let jump_data =
2531 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2532
2533 if *starts_new_buffer {
2534 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2535 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2536
2537 result = result.child(self.render_buffer_header(
2538 next_excerpt,
2539 false,
2540 selected,
2541 jump_data,
2542 window,
2543 cx,
2544 ));
2545 } else {
2546 result = result
2547 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2548 }
2549
2550 if *show_excerpt_controls {
2551 let group_name = "expand-up-first";
2552
2553 result = result.child(
2554 h_flex().group(group_name).child(
2555 expand_area(format!("block-{}-up-first", block_id).into())
2556 .h(header_height)
2557 .child(
2558 h_flex()
2559 .w(icon_offset)
2560 .h(header_height)
2561 .flex_none()
2562 .justify_end()
2563 .child(self.render_expand_excerpt_button(
2564 IconName::ArrowUpFromLine,
2565 Some(group_name.to_string()),
2566 cx,
2567 )),
2568 )
2569 .on_click(window.listener_for(&self.editor, {
2570 let excerpt_id = next_excerpt.id;
2571 let direction = ExpandExcerptDirection::Up;
2572 move |editor, _, _, cx| {
2573 editor.expand_excerpt(excerpt_id, direction, cx);
2574 cx.stop_propagation();
2575 }
2576 })),
2577 ),
2578 );
2579 }
2580 } else {
2581 let group_name = "expand-up-subsequent";
2582
2583 if *show_excerpt_controls {
2584 result = result.child(
2585 h_flex()
2586 .relative()
2587 .group(group_name)
2588 .child(
2589 div()
2590 .top(px(0.))
2591 .absolute()
2592 .w_full()
2593 .h_px()
2594 .bg(color.border_variant),
2595 )
2596 .child(
2597 expand_area(format!("block-{}-up", block_id).into())
2598 .h(header_height)
2599 .child(
2600 h_flex()
2601 .w(icon_offset)
2602 .h(header_height)
2603 .flex_none()
2604 .justify_end()
2605 .child(if *show_excerpt_controls {
2606 self.render_expand_excerpt_button(
2607 IconName::ArrowUpFromLine,
2608 Some(group_name.to_string()),
2609 cx,
2610 )
2611 } else {
2612 ButtonLike::new("jump-icon")
2613 .style(ButtonStyle::Transparent)
2614 .child(
2615 svg()
2616 .path(
2617 IconName::ArrowUpRight
2618 .path(),
2619 )
2620 .size(IconSize::XSmall.rems())
2621 .text_color(
2622 color.border_variant,
2623 )
2624 .group_hover(
2625 group_name,
2626 |style| {
2627 style.text_color(
2628 color.border,
2629 )
2630 },
2631 ),
2632 )
2633 }),
2634 )
2635 .on_click(window.listener_for(&self.editor, {
2636 let excerpt_id = next_excerpt.id;
2637 let direction = ExpandExcerptDirection::Up;
2638 move |editor, _, _, cx| {
2639 editor
2640 .expand_excerpt(excerpt_id, direction, cx);
2641 cx.stop_propagation();
2642 }
2643 })),
2644 ),
2645 );
2646 }
2647 };
2648 }
2649
2650 result.into_any()
2651 }
2652 };
2653
2654 // Discover the element's content height, then round up to the nearest multiple of line height.
2655 let preliminary_size = element.layout_as_root(
2656 size(available_width, AvailableSpace::MinContent),
2657 window,
2658 cx,
2659 );
2660 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2661 let final_size = if preliminary_size.height == quantized_height {
2662 preliminary_size
2663 } else {
2664 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2665 };
2666
2667 if let BlockId::Custom(custom_block_id) = block_id {
2668 if block.height() > 0 {
2669 let element_height_in_lines =
2670 ((final_size.height / line_height).ceil() as u32).max(1);
2671 if element_height_in_lines != block.height() {
2672 resized_blocks.insert(custom_block_id, element_height_in_lines);
2673 }
2674 }
2675 }
2676
2677 (element, final_size)
2678 }
2679
2680 fn render_buffer_header(
2681 &self,
2682 for_excerpt: &ExcerptInfo,
2683 is_folded: bool,
2684 is_selected: bool,
2685 jump_data: JumpData,
2686 window: &mut Window,
2687 cx: &mut App,
2688 ) -> Div {
2689 let include_root = self
2690 .editor
2691 .read(cx)
2692 .project
2693 .as_ref()
2694 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2695 .unwrap_or_default();
2696 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2697 let filename = path
2698 .as_ref()
2699 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2700 let parent_path = path.as_ref().and_then(|path| {
2701 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2702 });
2703 let focus_handle = self.editor.focus_handle(cx);
2704 let colors = cx.theme().colors();
2705
2706 div()
2707 .px_2()
2708 .pt_2()
2709 .w_full()
2710 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2711 .child(
2712 h_flex()
2713 .size_full()
2714 .gap_2()
2715 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2716 .pl_0p5()
2717 .pr_5()
2718 .rounded_md()
2719 .shadow_md()
2720 .border_1()
2721 .map(|div| {
2722 let border_color = if is_selected && is_folded {
2723 colors.border_focused
2724 } else {
2725 colors.border
2726 };
2727 div.border_color(border_color)
2728 })
2729 .bg(colors.editor_subheader_background)
2730 .hover(|style| style.bg(colors.element_hover))
2731 .map(|header| {
2732 let editor = self.editor.clone();
2733 let buffer_id = for_excerpt.buffer_id;
2734 let toggle_chevron_icon =
2735 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2736 header.child(
2737 div()
2738 .hover(|style| style.bg(colors.element_selected))
2739 .rounded_sm()
2740 .child(
2741 ButtonLike::new("toggle-buffer-fold")
2742 .style(ui::ButtonStyle::Transparent)
2743 .size(ButtonSize::Large)
2744 .width(px(30.).into())
2745 .children(toggle_chevron_icon)
2746 .tooltip({
2747 let focus_handle = focus_handle.clone();
2748 move |window, cx| {
2749 Tooltip::for_action_in(
2750 "Toggle Excerpt Fold",
2751 &ToggleFold,
2752 &focus_handle,
2753 window,
2754 cx,
2755 )
2756 }
2757 })
2758 .on_click(move |_, _, cx| {
2759 if is_folded {
2760 editor.update(cx, |editor, cx| {
2761 editor.unfold_buffer(buffer_id, cx);
2762 });
2763 } else {
2764 editor.update(cx, |editor, cx| {
2765 editor.fold_buffer(buffer_id, cx);
2766 });
2767 }
2768 }),
2769 ),
2770 )
2771 })
2772 .child(
2773 h_flex()
2774 .cursor_pointer()
2775 .id("path header block")
2776 .size_full()
2777 .justify_between()
2778 .child(
2779 h_flex()
2780 .gap_2()
2781 .child(
2782 filename
2783 .map(SharedString::from)
2784 .unwrap_or_else(|| "untitled".into()),
2785 )
2786 .when_some(parent_path, |then, path| {
2787 then.child(div().child(path).text_color(colors.text_muted))
2788 }),
2789 )
2790 .when(is_selected, |el| {
2791 el.child(
2792 h_flex()
2793 .id("jump-to-file-button")
2794 .gap_2p5()
2795 .child(Label::new("Jump To File"))
2796 .children(
2797 KeyBinding::for_action_in(
2798 &OpenExcerpts,
2799 &focus_handle,
2800 window,
2801 )
2802 .map(|binding| binding.into_any_element()),
2803 ),
2804 )
2805 })
2806 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2807 .on_click(window.listener_for(&self.editor, {
2808 move |editor, e: &ClickEvent, window, cx| {
2809 editor.open_excerpts_common(
2810 Some(jump_data.clone()),
2811 e.down.modifiers.secondary(),
2812 window,
2813 cx,
2814 );
2815 }
2816 })),
2817 ),
2818 )
2819 }
2820
2821 fn render_expand_excerpt_button(
2822 &self,
2823 icon: IconName,
2824 group_name: impl Into<Option<String>>,
2825 cx: &mut App,
2826 ) -> ButtonLike {
2827 let group_name = group_name.into();
2828 ButtonLike::new("expand-icon")
2829 .style(ButtonStyle::Transparent)
2830 .child(
2831 svg()
2832 .path(icon.path())
2833 .size(IconSize::XSmall.rems())
2834 .text_color(cx.theme().colors().editor_line_number)
2835 .when_some(group_name, |svg, group_name| {
2836 svg.group_hover(group_name, |style| {
2837 style.text_color(cx.theme().colors().editor_active_line_number)
2838 })
2839 }),
2840 )
2841 }
2842
2843 #[allow(clippy::too_many_arguments)]
2844 fn render_blocks(
2845 &self,
2846 rows: Range<DisplayRow>,
2847 snapshot: &EditorSnapshot,
2848 hitbox: &Hitbox,
2849 text_hitbox: &Hitbox,
2850 editor_width: Pixels,
2851 scroll_width: &mut Pixels,
2852 gutter_dimensions: &GutterDimensions,
2853 em_width: Pixels,
2854 text_x: Pixels,
2855 line_height: Pixels,
2856 line_layouts: &[LineWithInvisibles],
2857 selections: &[Selection<Point>],
2858 selected_buffer_ids: &Vec<BufferId>,
2859 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2860 sticky_header_excerpt_id: Option<ExcerptId>,
2861 window: &mut Window,
2862 cx: &mut App,
2863 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2864 let (fixed_blocks, non_fixed_blocks) = snapshot
2865 .blocks_in_range(rows.clone())
2866 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2867
2868 let mut focused_block = self
2869 .editor
2870 .update(cx, |editor, _| editor.take_focused_block());
2871 let mut fixed_block_max_width = Pixels::ZERO;
2872 let mut blocks = Vec::new();
2873 let mut resized_blocks = HashMap::default();
2874
2875 for (row, block) in fixed_blocks {
2876 let block_id = block.id();
2877
2878 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2879 focused_block = None;
2880 }
2881
2882 let (element, element_size) = self.render_block(
2883 block,
2884 AvailableSpace::MinContent,
2885 block_id,
2886 row,
2887 snapshot,
2888 text_x,
2889 &rows,
2890 line_layouts,
2891 gutter_dimensions,
2892 line_height,
2893 em_width,
2894 text_hitbox,
2895 editor_width,
2896 scroll_width,
2897 &mut resized_blocks,
2898 selections,
2899 selected_buffer_ids,
2900 is_row_soft_wrapped,
2901 sticky_header_excerpt_id,
2902 window,
2903 cx,
2904 );
2905 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2906 blocks.push(BlockLayout {
2907 id: block_id,
2908 row: Some(row),
2909 element,
2910 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2911 style: BlockStyle::Fixed,
2912 });
2913 }
2914
2915 for (row, block) in non_fixed_blocks {
2916 let style = block.style();
2917 let width = match style {
2918 BlockStyle::Sticky => hitbox.size.width,
2919 BlockStyle::Flex => hitbox
2920 .size
2921 .width
2922 .max(fixed_block_max_width)
2923 .max(gutter_dimensions.width + *scroll_width),
2924 BlockStyle::Fixed => unreachable!(),
2925 };
2926 let block_id = block.id();
2927
2928 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2929 focused_block = None;
2930 }
2931
2932 let (element, element_size) = self.render_block(
2933 block,
2934 width.into(),
2935 block_id,
2936 row,
2937 snapshot,
2938 text_x,
2939 &rows,
2940 line_layouts,
2941 gutter_dimensions,
2942 line_height,
2943 em_width,
2944 text_hitbox,
2945 editor_width,
2946 scroll_width,
2947 &mut resized_blocks,
2948 selections,
2949 selected_buffer_ids,
2950 is_row_soft_wrapped,
2951 sticky_header_excerpt_id,
2952 window,
2953 cx,
2954 );
2955
2956 blocks.push(BlockLayout {
2957 id: block_id,
2958 row: Some(row),
2959 element,
2960 available_space: size(width.into(), element_size.height.into()),
2961 style,
2962 });
2963 }
2964
2965 if let Some(focused_block) = focused_block {
2966 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2967 if focus_handle.is_focused(window) {
2968 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2969 let style = block.style();
2970 let width = match style {
2971 BlockStyle::Fixed => AvailableSpace::MinContent,
2972 BlockStyle::Flex => AvailableSpace::Definite(
2973 hitbox
2974 .size
2975 .width
2976 .max(fixed_block_max_width)
2977 .max(gutter_dimensions.width + *scroll_width),
2978 ),
2979 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2980 };
2981
2982 let (element, element_size) = self.render_block(
2983 &block,
2984 width,
2985 focused_block.id,
2986 rows.end,
2987 snapshot,
2988 text_x,
2989 &rows,
2990 line_layouts,
2991 gutter_dimensions,
2992 line_height,
2993 em_width,
2994 text_hitbox,
2995 editor_width,
2996 scroll_width,
2997 &mut resized_blocks,
2998 selections,
2999 selected_buffer_ids,
3000 is_row_soft_wrapped,
3001 sticky_header_excerpt_id,
3002 window,
3003 cx,
3004 );
3005
3006 blocks.push(BlockLayout {
3007 id: block.id(),
3008 row: None,
3009 element,
3010 available_space: size(width, element_size.height.into()),
3011 style,
3012 });
3013 }
3014 }
3015 }
3016 }
3017
3018 if resized_blocks.is_empty() {
3019 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3020 Ok(blocks)
3021 } else {
3022 Err(resized_blocks)
3023 }
3024 }
3025
3026 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3027 /// a restart of rendering for the editor based on the new sizes.
3028 #[allow(clippy::too_many_arguments)]
3029 fn layout_blocks(
3030 &self,
3031 blocks: &mut Vec<BlockLayout>,
3032 block_starts: &mut HashSet<DisplayRow>,
3033 hitbox: &Hitbox,
3034 line_height: Pixels,
3035 scroll_pixel_position: gpui::Point<Pixels>,
3036 window: &mut Window,
3037 cx: &mut App,
3038 ) {
3039 for block in blocks {
3040 let mut origin = if let Some(row) = block.row {
3041 block_starts.insert(row);
3042 hitbox.origin
3043 + point(
3044 Pixels::ZERO,
3045 row.as_f32() * line_height - scroll_pixel_position.y,
3046 )
3047 } else {
3048 // Position the block outside the visible area
3049 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3050 };
3051
3052 if !matches!(block.style, BlockStyle::Sticky) {
3053 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3054 }
3055
3056 let focus_handle =
3057 block
3058 .element
3059 .prepaint_as_root(origin, block.available_space, window, cx);
3060
3061 if let Some(focus_handle) = focus_handle {
3062 self.editor.update(cx, |editor, _cx| {
3063 editor.set_focused_block(FocusedBlock {
3064 id: block.id,
3065 focus_handle: focus_handle.downgrade(),
3066 });
3067 });
3068 }
3069 }
3070 }
3071
3072 #[allow(clippy::too_many_arguments)]
3073 fn layout_sticky_buffer_header(
3074 &self,
3075 StickyHeaderExcerpt {
3076 excerpt,
3077 next_excerpt_controls_present,
3078 next_buffer_row,
3079 }: StickyHeaderExcerpt<'_>,
3080 scroll_position: f32,
3081 line_height: Pixels,
3082 snapshot: &EditorSnapshot,
3083 hitbox: &Hitbox,
3084 selected_buffer_ids: &Vec<BufferId>,
3085 window: &mut Window,
3086 cx: &mut App,
3087 ) -> AnyElement {
3088 let jump_data = header_jump_data(
3089 snapshot,
3090 DisplayRow(scroll_position as u32),
3091 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3092 excerpt,
3093 );
3094
3095 let editor_bg_color = cx.theme().colors().editor_background;
3096
3097 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3098
3099 let mut header = v_flex()
3100 .relative()
3101 .child(
3102 div()
3103 .w(hitbox.bounds.size.width)
3104 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3105 .bg(linear_gradient(
3106 0.,
3107 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3108 linear_color_stop(editor_bg_color, 0.6),
3109 ))
3110 .absolute()
3111 .top_0(),
3112 )
3113 .child(
3114 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3115 .into_any_element(),
3116 )
3117 .into_any_element();
3118
3119 let mut origin = hitbox.origin;
3120
3121 if let Some(next_buffer_row) = next_buffer_row {
3122 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3123
3124 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3125
3126 if next_excerpt_controls_present {
3127 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3128 }
3129
3130 let offset = scroll_position - max_row as f32;
3131
3132 if offset > 0.0 {
3133 origin.y -= Pixels(offset) * line_height;
3134 }
3135 }
3136
3137 let size = size(
3138 AvailableSpace::Definite(hitbox.size.width),
3139 AvailableSpace::MinContent,
3140 );
3141
3142 header.prepaint_as_root(origin, size, window, cx);
3143
3144 header
3145 }
3146
3147 #[allow(clippy::too_many_arguments)]
3148 fn layout_context_menu(
3149 &self,
3150 line_height: Pixels,
3151 text_hitbox: &Hitbox,
3152 content_origin: gpui::Point<Pixels>,
3153 start_row: DisplayRow,
3154 scroll_pixel_position: gpui::Point<Pixels>,
3155 line_layouts: &[LineWithInvisibles],
3156 newest_selection_head: DisplayPoint,
3157 gutter_overshoot: Pixels,
3158 window: &mut Window,
3159 cx: &mut App,
3160 ) {
3161 let Some(context_menu_origin) = self
3162 .editor
3163 .read(cx)
3164 .context_menu_origin(newest_selection_head)
3165 else {
3166 return;
3167 };
3168 let target_position = content_origin
3169 + match context_menu_origin {
3170 crate::ContextMenuOrigin::EditorPoint(display_point) => {
3171 let cursor_row_layout =
3172 &line_layouts[display_point.row().minus(start_row) as usize];
3173 gpui::Point {
3174 x: cmp::max(
3175 px(0.),
3176 cursor_row_layout.x_for_index(display_point.column() as usize)
3177 - scroll_pixel_position.x,
3178 ),
3179 y: cmp::max(
3180 px(0.),
3181 display_point.row().next_row().as_f32() * line_height
3182 - scroll_pixel_position.y,
3183 ),
3184 }
3185 }
3186 crate::ContextMenuOrigin::GutterIndicator(row) => {
3187 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the indicator than just a plain first column of the
3188 // text field.
3189 gpui::Point {
3190 x: -gutter_overshoot,
3191 y: row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3192 }
3193 }
3194 };
3195
3196 let viewport_bounds =
3197 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3198 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3199 ..Default::default()
3200 });
3201
3202 // If the context menu's max height won't fit below, then flip it above the line and display
3203 // it in reverse order. If the available space above is less than below.
3204 let unconstrained_max_height = line_height * 12. + POPOVER_Y_PADDING;
3205 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3206 let bottom_y_when_flipped = target_position.y - line_height;
3207 let available_above = bottom_y_when_flipped - text_hitbox.top();
3208 let available_below = text_hitbox.bottom() - target_position.y;
3209 let y_overflows_below = unconstrained_max_height > available_below;
3210 let mut y_flipped = y_overflows_below && available_above > available_below;
3211 let mut height = cmp::min(
3212 unconstrained_max_height,
3213 if y_flipped {
3214 available_above
3215 } else {
3216 available_below
3217 },
3218 );
3219
3220 // If less than 3 lines fit within the text bounds, instead fit within the window.
3221 if height < min_height {
3222 let available_above = bottom_y_when_flipped;
3223 let available_below = viewport_bounds.bottom() - target_position.y;
3224 if available_below > 3. * line_height {
3225 y_flipped = false;
3226 height = min_height;
3227 } else if available_above > 3. * line_height {
3228 y_flipped = true;
3229 height = min_height;
3230 } else if available_above > available_below {
3231 y_flipped = true;
3232 height = available_above;
3233 } else {
3234 y_flipped = false;
3235 height = available_below;
3236 }
3237 }
3238
3239 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3240
3241 // TODO(mgsloan): use viewport_bounds.width as a max width when rendering menu.
3242 let Some(mut menu_element) = self.editor.update(cx, |editor, cx| {
3243 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3244 }) else {
3245 return;
3246 };
3247
3248 let menu_size = menu_element.layout_as_root(AvailableSpace::min_size(), window, cx);
3249 let menu_position = gpui::Point {
3250 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3251 // overflow. Include space for the scrollbar.
3252 x: target_position
3253 .x
3254 .min((viewport_bounds.right() - menu_size.width).max(Pixels::ZERO)),
3255 y: if y_flipped {
3256 bottom_y_when_flipped - menu_size.height
3257 } else {
3258 target_position.y
3259 },
3260 };
3261 window.defer_draw(menu_element, menu_position, 1);
3262
3263 // Layout documentation aside
3264 let menu_bounds = Bounds::new(menu_position, menu_size);
3265 let max_menu_size = size(menu_size.width, unconstrained_max_height);
3266 let max_menu_bounds = if y_flipped {
3267 Bounds::new(
3268 point(
3269 menu_position.x,
3270 bottom_y_when_flipped - max_menu_size.height,
3271 ),
3272 max_menu_size,
3273 )
3274 } else {
3275 Bounds::new(target_position, max_menu_size)
3276 };
3277 self.layout_context_menu_aside(
3278 text_hitbox,
3279 y_flipped,
3280 menu_position,
3281 menu_bounds,
3282 max_menu_bounds,
3283 unconstrained_max_height,
3284 line_height,
3285 viewport_bounds,
3286 window,
3287 cx,
3288 );
3289 }
3290
3291 #[allow(clippy::too_many_arguments)]
3292 fn layout_context_menu_aside(
3293 &self,
3294 text_hitbox: &Hitbox,
3295 y_flipped: bool,
3296 menu_position: gpui::Point<Pixels>,
3297 menu_bounds: Bounds<Pixels>,
3298 max_menu_bounds: Bounds<Pixels>,
3299 max_height: Pixels,
3300 line_height: Pixels,
3301 viewport_bounds: Bounds<Pixels>,
3302 window: &mut Window,
3303 cx: &mut App,
3304 ) {
3305 let mut extend_amount = Edges::all(MENU_GAP);
3306 // Extend to include the cursored line to avoid overlapping it.
3307 if y_flipped {
3308 extend_amount.bottom = line_height;
3309 } else {
3310 extend_amount.top = line_height;
3311 }
3312 let target_bounds = menu_bounds.extend(extend_amount);
3313 let max_target_bounds = max_menu_bounds.extend(extend_amount);
3314
3315 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3316 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH {
3317 let max_width = cmp::min(
3318 available_within_viewport.right - px(1.),
3319 MENU_ASIDE_MAX_WIDTH,
3320 );
3321 let Some(mut aside) =
3322 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3323 else {
3324 return;
3325 };
3326 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3327 let right_position = point(target_bounds.right(), menu_position.y);
3328 Some((aside, right_position))
3329 } else {
3330 let max_size = size(
3331 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3332 // won't be needed here.
3333 cmp::min(
3334 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3335 viewport_bounds.right(),
3336 ),
3337 cmp::min(
3338 max_height,
3339 cmp::max(
3340 available_within_viewport.top,
3341 available_within_viewport.bottom,
3342 ),
3343 ) - POPOVER_Y_PADDING,
3344 );
3345 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3346 return;
3347 };
3348 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3349
3350 let top_position = point(menu_position.x, target_bounds.top() - actual_size.height);
3351 let bottom_position = point(menu_position.x, target_bounds.bottom());
3352
3353 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3354 // Prefer to fit on the same side of the line as the menu, then on the other side of
3355 // the line.
3356 if !y_flipped && wanted.height < available.bottom {
3357 Some(bottom_position)
3358 } else if !y_flipped && wanted.height < available.top {
3359 Some(top_position)
3360 } else if y_flipped && wanted.height < available.top {
3361 Some(top_position)
3362 } else if y_flipped && wanted.height < available.bottom {
3363 Some(bottom_position)
3364 } else {
3365 None
3366 }
3367 };
3368
3369 // Prefer choosing a direction using max sizes rather than actual size for stability.
3370 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3371 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3372 let aside_position = fit_within(available_within_text, wanted)
3373 // Fallback: fit max size in window.
3374 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3375 // Fallback: fit actual size in window.
3376 .or_else(|| fit_within(available_within_viewport, actual_size));
3377
3378 aside_position.map(|position| (aside, position))
3379 };
3380
3381 // Skip drawing if it doesn't fit anywhere.
3382 if let Some((aside, position)) = positioned_aside {
3383 window.defer_draw(aside, position, 1);
3384 }
3385 }
3386
3387 fn render_context_menu_aside(
3388 &self,
3389 max_size: Size<Pixels>,
3390
3391 cx: &mut App,
3392 ) -> Option<AnyElement> {
3393 if max_size.width < px(100.) || max_size.height < px(12.) {
3394 None
3395 } else {
3396 self.editor.update(cx, |editor, cx| {
3397 editor.render_context_menu_aside(&self.style, max_size, cx)
3398 })
3399 }
3400 }
3401
3402 #[allow(clippy::too_many_arguments)]
3403 fn layout_inline_completion_popover(
3404 &self,
3405 text_bounds: &Bounds<Pixels>,
3406 editor_snapshot: &EditorSnapshot,
3407 visible_row_range: Range<DisplayRow>,
3408 scroll_top: f32,
3409 scroll_bottom: f32,
3410 line_layouts: &[LineWithInvisibles],
3411 line_height: Pixels,
3412 scroll_pixel_position: gpui::Point<Pixels>,
3413 editor_width: Pixels,
3414 style: &EditorStyle,
3415 window: &mut Window,
3416 cx: &mut App,
3417 ) -> Option<AnyElement> {
3418 const PADDING_X: Pixels = Pixels(24.);
3419 const PADDING_Y: Pixels = Pixels(2.);
3420
3421 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3422
3423 match &active_inline_completion.completion {
3424 InlineCompletion::Move(target_position) => {
3425 let target_display_point = target_position.to_display_point(editor_snapshot);
3426 if target_display_point.row().as_f32() < scroll_top {
3427 let mut element = inline_completion_tab_indicator(
3428 "Jump to Edit",
3429 Some(IconName::ArrowUp),
3430 cx,
3431 );
3432 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3433 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3434 element.prepaint_at(text_bounds.origin + offset, window, cx);
3435 Some(element)
3436 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3437 let mut element = inline_completion_tab_indicator(
3438 "Jump to Edit",
3439 Some(IconName::ArrowDown),
3440 cx,
3441 );
3442 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3443 let offset = point(
3444 (text_bounds.size.width - size.width) / 2.,
3445 text_bounds.size.height - size.height - PADDING_Y,
3446 );
3447 element.prepaint_at(text_bounds.origin + offset, window, cx);
3448 Some(element)
3449 } else {
3450 let mut element = inline_completion_tab_indicator("Jump to Edit", None, cx);
3451
3452 let target_line_end = DisplayPoint::new(
3453 target_display_point.row(),
3454 editor_snapshot.line_len(target_display_point.row()),
3455 );
3456 let origin = self.editor.update(cx, |editor, _cx| {
3457 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3458 })?;
3459 element.prepaint_as_root(
3460 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3461 AvailableSpace::min_size(),
3462 window,
3463 cx,
3464 );
3465 Some(element)
3466 }
3467 }
3468 InlineCompletion::Edit {
3469 edits,
3470 edit_preview,
3471 display_mode,
3472 snapshot,
3473 } => {
3474 if self.editor.read(cx).has_active_completions_menu() {
3475 return None;
3476 }
3477
3478 let edit_start = edits
3479 .first()
3480 .unwrap()
3481 .0
3482 .start
3483 .to_display_point(editor_snapshot);
3484 let edit_end = edits
3485 .last()
3486 .unwrap()
3487 .0
3488 .end
3489 .to_display_point(editor_snapshot);
3490
3491 let is_visible = visible_row_range.contains(&edit_start.row())
3492 || visible_row_range.contains(&edit_end.row());
3493 if !is_visible {
3494 return None;
3495 }
3496
3497 match display_mode {
3498 EditDisplayMode::TabAccept => {
3499 let range = &edits.first()?.0;
3500 let target_display_point = range.end.to_display_point(editor_snapshot);
3501
3502 let target_line_end = DisplayPoint::new(
3503 target_display_point.row(),
3504 editor_snapshot.line_len(target_display_point.row()),
3505 );
3506 let origin = self.editor.update(cx, |editor, _cx| {
3507 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3508 })?;
3509
3510 let mut element = inline_completion_tab_indicator("Accept", None, cx);
3511
3512 element.prepaint_as_root(
3513 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3514 AvailableSpace::min_size(),
3515 window,
3516 cx,
3517 );
3518
3519 return Some(element);
3520 }
3521 EditDisplayMode::Inline => return None,
3522 EditDisplayMode::DiffPopover => {}
3523 }
3524
3525 let highlighted_edits = edit_preview.as_ref().and_then(|edit_preview| {
3526 crate::inline_completion_edit_text(&snapshot, edits, edit_preview, false, cx)
3527 })?;
3528
3529 let line_count = highlighted_edits.text.lines().count() + 1;
3530
3531 let longest_row =
3532 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3533 let longest_line_width = if visible_row_range.contains(&longest_row) {
3534 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3535 } else {
3536 layout_line(
3537 longest_row,
3538 editor_snapshot,
3539 style,
3540 editor_width,
3541 |_| false,
3542 window,
3543 cx,
3544 )
3545 .width
3546 };
3547
3548 let styled_text = gpui::StyledText::new(highlighted_edits.text.clone())
3549 .with_highlights(&style.text, highlighted_edits.highlights);
3550
3551 let mut element = div()
3552 .bg(cx.theme().colors().editor_background)
3553 .border_1()
3554 .border_color(cx.theme().colors().border)
3555 .rounded_md()
3556 .child(styled_text)
3557 .into_any();
3558
3559 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3560 let is_fully_visible =
3561 editor_width >= longest_line_width + PADDING_X + element_bounds.width;
3562
3563 let origin = if is_fully_visible {
3564 text_bounds.origin
3565 + point(
3566 longest_line_width + PADDING_X - scroll_pixel_position.x,
3567 edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
3568 )
3569 } else {
3570 let target_above =
3571 DisplayRow(edit_start.row().0.saturating_sub(line_count as u32));
3572 let row_target = if visible_row_range
3573 .contains(&DisplayRow(target_above.0.saturating_sub(1)))
3574 {
3575 target_above
3576 } else {
3577 DisplayRow(edit_end.row().0 + 1)
3578 };
3579
3580 text_bounds.origin
3581 + point(
3582 -scroll_pixel_position.x,
3583 row_target.as_f32() * line_height - scroll_pixel_position.y,
3584 )
3585 };
3586
3587 element.prepaint_as_root(origin, element_bounds.into(), window, cx);
3588 Some(element)
3589 }
3590 }
3591 }
3592
3593 fn layout_mouse_context_menu(
3594 &self,
3595 editor_snapshot: &EditorSnapshot,
3596 visible_range: Range<DisplayRow>,
3597 content_origin: gpui::Point<Pixels>,
3598 window: &mut Window,
3599 cx: &mut App,
3600 ) -> Option<AnyElement> {
3601 let position = self.editor.update(cx, |editor, _cx| {
3602 let visible_start_point = editor.display_to_pixel_point(
3603 DisplayPoint::new(visible_range.start, 0),
3604 editor_snapshot,
3605 window,
3606 )?;
3607 let visible_end_point = editor.display_to_pixel_point(
3608 DisplayPoint::new(visible_range.end, 0),
3609 editor_snapshot,
3610 window,
3611 )?;
3612
3613 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3614 let (source_display_point, position) = match mouse_context_menu.position {
3615 MenuPosition::PinnedToScreen(point) => (None, point),
3616 MenuPosition::PinnedToEditor { source, offset } => {
3617 let source_display_point = source.to_display_point(editor_snapshot);
3618 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3619 let position = content_origin + source_point + offset;
3620 (Some(source_display_point), position)
3621 }
3622 };
3623
3624 let source_included = source_display_point.map_or(true, |source_display_point| {
3625 visible_range
3626 .to_inclusive()
3627 .contains(&source_display_point.row())
3628 });
3629 let position_included =
3630 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3631 if !source_included && !position_included {
3632 None
3633 } else {
3634 Some(position)
3635 }
3636 })?;
3637
3638 let mut element = self.editor.update(cx, |editor, _| {
3639 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3640 let context_menu = mouse_context_menu.context_menu.clone();
3641
3642 Some(
3643 deferred(
3644 anchored()
3645 .position(position)
3646 .child(context_menu)
3647 .anchor(Corner::TopLeft)
3648 .snap_to_window_with_margin(px(8.)),
3649 )
3650 .with_priority(1)
3651 .into_any(),
3652 )
3653 })?;
3654
3655 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3656 Some(element)
3657 }
3658
3659 #[allow(clippy::too_many_arguments)]
3660 fn layout_hover_popovers(
3661 &self,
3662 snapshot: &EditorSnapshot,
3663 hitbox: &Hitbox,
3664 text_hitbox: &Hitbox,
3665 visible_display_row_range: Range<DisplayRow>,
3666 content_origin: gpui::Point<Pixels>,
3667 scroll_pixel_position: gpui::Point<Pixels>,
3668 line_layouts: &[LineWithInvisibles],
3669 line_height: Pixels,
3670 em_width: Pixels,
3671 window: &mut Window,
3672 cx: &mut App,
3673 ) {
3674 struct MeasuredHoverPopover {
3675 element: AnyElement,
3676 size: Size<Pixels>,
3677 horizontal_offset: Pixels,
3678 }
3679
3680 let max_size = size(
3681 (120. * em_width) // Default size
3682 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3683 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3684 (16. * line_height) // Default size
3685 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3686 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3687 );
3688
3689 let hover_popovers = self.editor.update(cx, |editor, cx| {
3690 editor
3691 .hover_state
3692 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3693 });
3694 let Some((position, hover_popovers)) = hover_popovers else {
3695 return;
3696 };
3697
3698 // This is safe because we check on layout whether the required row is available
3699 let hovered_row_layout =
3700 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3701
3702 // Compute Hovered Point
3703 let x =
3704 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3705 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3706 let hovered_point = content_origin + point(x, y);
3707
3708 let mut overall_height = Pixels::ZERO;
3709 let mut measured_hover_popovers = Vec::new();
3710 for mut hover_popover in hover_popovers {
3711 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3712 let horizontal_offset =
3713 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3714
3715 overall_height += HOVER_POPOVER_GAP + size.height;
3716
3717 measured_hover_popovers.push(MeasuredHoverPopover {
3718 element: hover_popover,
3719 size,
3720 horizontal_offset,
3721 });
3722 }
3723 overall_height += HOVER_POPOVER_GAP;
3724
3725 fn draw_occluder(
3726 width: Pixels,
3727 origin: gpui::Point<Pixels>,
3728 window: &mut Window,
3729 cx: &mut App,
3730 ) {
3731 let mut occlusion = div()
3732 .size_full()
3733 .occlude()
3734 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3735 .into_any_element();
3736 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3737 window.defer_draw(occlusion, origin, 2);
3738 }
3739
3740 if hovered_point.y > overall_height {
3741 // There is enough space above. Render popovers above the hovered point
3742 let mut current_y = hovered_point.y;
3743 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3744 let size = popover.size;
3745 let popover_origin = point(
3746 hovered_point.x + popover.horizontal_offset,
3747 current_y - size.height,
3748 );
3749
3750 window.defer_draw(popover.element, popover_origin, 2);
3751 if position != itertools::Position::Last {
3752 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3753 draw_occluder(size.width, origin, window, cx);
3754 }
3755
3756 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3757 }
3758 } else {
3759 // There is not enough space above. Render popovers below the hovered point
3760 let mut current_y = hovered_point.y + line_height;
3761 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3762 let size = popover.size;
3763 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3764
3765 window.defer_draw(popover.element, popover_origin, 2);
3766 if position != itertools::Position::Last {
3767 let origin = point(popover_origin.x, popover_origin.y + size.height);
3768 draw_occluder(size.width, origin, window, cx);
3769 }
3770
3771 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3772 }
3773 }
3774 }
3775
3776 #[allow(clippy::too_many_arguments)]
3777 fn layout_diff_hunk_controls(
3778 &self,
3779 row_range: Range<DisplayRow>,
3780 row_infos: &[RowInfo],
3781 text_hitbox: &Hitbox,
3782 position_map: &PositionMap,
3783 newest_cursor_position: Option<DisplayPoint>,
3784 line_height: Pixels,
3785 scroll_pixel_position: gpui::Point<Pixels>,
3786 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3787 editor: Entity<Editor>,
3788 window: &mut Window,
3789 cx: &mut App,
3790 ) -> Vec<AnyElement> {
3791 let point_for_position =
3792 position_map.point_for_position(text_hitbox.bounds, window.mouse_position());
3793
3794 let mut controls = vec![];
3795
3796 let active_positions = [
3797 Some(point_for_position.previous_valid),
3798 newest_cursor_position,
3799 ];
3800
3801 for (hunk, _) in display_hunks {
3802 if let DisplayDiffHunk::Unfolded {
3803 display_row_range,
3804 multi_buffer_range,
3805 status,
3806 ..
3807 } = &hunk
3808 {
3809 if display_row_range.start < row_range.start
3810 || display_row_range.start >= row_range.end
3811 {
3812 continue;
3813 }
3814 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3815 if row_infos[row_ix].diff_status.is_none() {
3816 continue;
3817 }
3818 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
3819 && *status != DiffHunkStatus::Added
3820 {
3821 continue;
3822 }
3823 if active_positions
3824 .iter()
3825 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3826 {
3827 let y = display_row_range.start.as_f32() * line_height
3828 + text_hitbox.bounds.top()
3829 - scroll_pixel_position.y;
3830 let x = text_hitbox.bounds.right() - px(100.);
3831
3832 let mut element = diff_hunk_controls(
3833 display_row_range.start.0,
3834 multi_buffer_range.clone(),
3835 line_height,
3836 &editor,
3837 cx,
3838 );
3839 element.prepaint_as_root(
3840 gpui::Point::new(x, y),
3841 size(px(100.0), line_height).into(),
3842 window,
3843 cx,
3844 );
3845 controls.push(element);
3846 }
3847 }
3848 }
3849
3850 controls
3851 }
3852
3853 #[allow(clippy::too_many_arguments)]
3854 fn layout_signature_help(
3855 &self,
3856 hitbox: &Hitbox,
3857 content_origin: gpui::Point<Pixels>,
3858 scroll_pixel_position: gpui::Point<Pixels>,
3859 newest_selection_head: Option<DisplayPoint>,
3860 start_row: DisplayRow,
3861 line_layouts: &[LineWithInvisibles],
3862 line_height: Pixels,
3863 em_width: Pixels,
3864 window: &mut Window,
3865 cx: &mut App,
3866 ) {
3867 if !self.editor.focus_handle(cx).is_focused(window) {
3868 return;
3869 }
3870 let Some(newest_selection_head) = newest_selection_head else {
3871 return;
3872 };
3873 let selection_row = newest_selection_head.row();
3874 if selection_row < start_row {
3875 return;
3876 }
3877 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3878 else {
3879 return;
3880 };
3881
3882 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3883 - scroll_pixel_position.x
3884 + content_origin.x;
3885 let start_y =
3886 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3887
3888 let max_size = size(
3889 (120. * em_width) // Default size
3890 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3891 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3892 (16. * line_height) // Default size
3893 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3894 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3895 );
3896
3897 let maybe_element = self.editor.update(cx, |editor, cx| {
3898 if let Some(popover) = editor.signature_help_state.popover_mut() {
3899 let element = popover.render(
3900 &self.style,
3901 max_size,
3902 editor.workspace.as_ref().map(|(w, _)| w.clone()),
3903 cx,
3904 );
3905 Some(element)
3906 } else {
3907 None
3908 }
3909 });
3910 if let Some(mut element) = maybe_element {
3911 let window_size = window.viewport_size();
3912 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
3913 let mut point = point(start_x, start_y - size.height);
3914
3915 // Adjusting to ensure the popover does not overflow in the X-axis direction.
3916 if point.x + size.width >= window_size.width {
3917 point.x = window_size.width - size.width;
3918 }
3919
3920 window.defer_draw(element, point, 1)
3921 }
3922 }
3923
3924 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
3925 window.paint_layer(layout.hitbox.bounds, |window| {
3926 let scroll_top = layout.position_map.snapshot.scroll_position().y;
3927 let gutter_bg = cx.theme().colors().editor_gutter_background;
3928 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
3929 window.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
3930
3931 if let EditorMode::Full = layout.mode {
3932 let mut active_rows = layout.active_rows.iter().peekable();
3933 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
3934 let mut end_row = start_row.0;
3935 while active_rows
3936 .peek()
3937 .map_or(false, |(active_row, has_selection)| {
3938 active_row.0 == end_row + 1
3939 && *has_selection == contains_non_empty_selection
3940 })
3941 {
3942 active_rows.next().unwrap();
3943 end_row += 1;
3944 }
3945
3946 if !contains_non_empty_selection {
3947 let highlight_h_range =
3948 match layout.position_map.snapshot.current_line_highlight {
3949 CurrentLineHighlight::Gutter => Some(Range {
3950 start: layout.hitbox.left(),
3951 end: layout.gutter_hitbox.right(),
3952 }),
3953 CurrentLineHighlight::Line => Some(Range {
3954 start: layout.text_hitbox.bounds.left(),
3955 end: layout.text_hitbox.bounds.right(),
3956 }),
3957 CurrentLineHighlight::All => Some(Range {
3958 start: layout.hitbox.left(),
3959 end: layout.hitbox.right(),
3960 }),
3961 CurrentLineHighlight::None => None,
3962 };
3963 if let Some(range) = highlight_h_range {
3964 let active_line_bg = cx.theme().colors().editor_active_line_background;
3965 let bounds = Bounds {
3966 origin: point(
3967 range.start,
3968 layout.hitbox.origin.y
3969 + (start_row.as_f32() - scroll_top)
3970 * layout.position_map.line_height,
3971 ),
3972 size: size(
3973 range.end - range.start,
3974 layout.position_map.line_height
3975 * (end_row - start_row.0 + 1) as f32,
3976 ),
3977 };
3978 window.paint_quad(fill(bounds, active_line_bg));
3979 }
3980 }
3981 }
3982
3983 let mut paint_highlight =
3984 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
3985 let origin = point(
3986 layout.hitbox.origin.x,
3987 layout.hitbox.origin.y
3988 + (highlight_row_start.as_f32() - scroll_top)
3989 * layout.position_map.line_height,
3990 );
3991 let size = size(
3992 layout.hitbox.size.width,
3993 layout.position_map.line_height
3994 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
3995 );
3996 window.paint_quad(fill(Bounds { origin, size }, color));
3997 };
3998
3999 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4000 for (&new_row, &new_color) in &layout.highlighted_rows {
4001 match &mut current_paint {
4002 Some((current_color, current_range)) => {
4003 let current_color = *current_color;
4004 let new_range_started = current_color != new_color
4005 || current_range.end.next_row() != new_row;
4006 if new_range_started {
4007 paint_highlight(
4008 current_range.start,
4009 current_range.end,
4010 current_color,
4011 );
4012 current_paint = Some((new_color, new_row..new_row));
4013 continue;
4014 } else {
4015 current_range.end = current_range.end.next_row();
4016 }
4017 }
4018 None => current_paint = Some((new_color, new_row..new_row)),
4019 };
4020 }
4021 if let Some((color, range)) = current_paint {
4022 paint_highlight(range.start, range.end, color);
4023 }
4024
4025 let scroll_left =
4026 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4027
4028 for (wrap_position, active) in layout.wrap_guides.iter() {
4029 let x = (layout.text_hitbox.origin.x
4030 + *wrap_position
4031 + layout.position_map.em_width / 2.)
4032 - scroll_left;
4033
4034 let show_scrollbars = {
4035 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4036
4037 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4038 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4039 };
4040
4041 if x < layout.text_hitbox.origin.x
4042 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4043 {
4044 continue;
4045 }
4046
4047 let color = if *active {
4048 cx.theme().colors().editor_active_wrap_guide
4049 } else {
4050 cx.theme().colors().editor_wrap_guide
4051 };
4052 window.paint_quad(fill(
4053 Bounds {
4054 origin: point(x, layout.text_hitbox.origin.y),
4055 size: size(px(1.), layout.text_hitbox.size.height),
4056 },
4057 color,
4058 ));
4059 }
4060 }
4061 })
4062 }
4063
4064 fn paint_indent_guides(
4065 &mut self,
4066 layout: &mut EditorLayout,
4067 window: &mut Window,
4068 cx: &mut App,
4069 ) {
4070 let Some(indent_guides) = &layout.indent_guides else {
4071 return;
4072 };
4073
4074 let faded_color = |color: Hsla, alpha: f32| {
4075 let mut faded = color;
4076 faded.a = alpha;
4077 faded
4078 };
4079
4080 for indent_guide in indent_guides {
4081 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4082 let settings = indent_guide.settings;
4083
4084 // TODO fixed for now, expose them through themes later
4085 const INDENT_AWARE_ALPHA: f32 = 0.2;
4086 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4087 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4088 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4089
4090 let line_color = match (settings.coloring, indent_guide.active) {
4091 (IndentGuideColoring::Disabled, _) => None,
4092 (IndentGuideColoring::Fixed, false) => {
4093 Some(cx.theme().colors().editor_indent_guide)
4094 }
4095 (IndentGuideColoring::Fixed, true) => {
4096 Some(cx.theme().colors().editor_indent_guide_active)
4097 }
4098 (IndentGuideColoring::IndentAware, false) => {
4099 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4100 }
4101 (IndentGuideColoring::IndentAware, true) => {
4102 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4103 }
4104 };
4105
4106 let background_color = match (settings.background_coloring, indent_guide.active) {
4107 (IndentGuideBackgroundColoring::Disabled, _) => None,
4108 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4109 indent_accent_colors,
4110 INDENT_AWARE_BACKGROUND_ALPHA,
4111 )),
4112 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4113 indent_accent_colors,
4114 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4115 )),
4116 };
4117
4118 let requested_line_width = if indent_guide.active {
4119 settings.active_line_width
4120 } else {
4121 settings.line_width
4122 }
4123 .clamp(1, 10);
4124 let mut line_indicator_width = 0.;
4125 if let Some(color) = line_color {
4126 window.paint_quad(fill(
4127 Bounds {
4128 origin: indent_guide.origin,
4129 size: size(px(requested_line_width as f32), indent_guide.length),
4130 },
4131 color,
4132 ));
4133 line_indicator_width = requested_line_width as f32;
4134 }
4135
4136 if let Some(color) = background_color {
4137 let width = indent_guide.single_indent_width - px(line_indicator_width);
4138 window.paint_quad(fill(
4139 Bounds {
4140 origin: point(
4141 indent_guide.origin.x + px(line_indicator_width),
4142 indent_guide.origin.y,
4143 ),
4144 size: size(width, indent_guide.length),
4145 },
4146 color,
4147 ));
4148 }
4149 }
4150 }
4151
4152 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4153 let is_singleton = self.editor.read(cx).is_singleton(cx);
4154
4155 let line_height = layout.position_map.line_height;
4156 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4157
4158 for LineNumberLayout {
4159 shaped_line,
4160 hitbox,
4161 display_row,
4162 } in layout.line_numbers.values()
4163 {
4164 let Some(hitbox) = hitbox else {
4165 continue;
4166 };
4167
4168 let is_active = layout.active_rows.contains_key(&display_row);
4169
4170 let color = if is_active {
4171 cx.theme().colors().editor_active_line_number
4172 } else if !is_singleton && hitbox.is_hovered(window) {
4173 cx.theme().colors().editor_hover_line_number
4174 } else {
4175 cx.theme().colors().editor_line_number
4176 };
4177
4178 let Some(line) = self
4179 .shape_line_number(shaped_line.text.clone(), color, window)
4180 .log_err()
4181 else {
4182 continue;
4183 };
4184 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4185 continue;
4186 };
4187 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4188 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4189 if is_singleton {
4190 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4191 } else {
4192 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4193 }
4194 }
4195 }
4196
4197 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4198 if layout.display_hunks.is_empty() {
4199 return;
4200 }
4201
4202 let line_height = layout.position_map.line_height;
4203 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4204 for (hunk, hitbox) in &layout.display_hunks {
4205 let hunk_to_paint = match hunk {
4206 DisplayDiffHunk::Folded { .. } => {
4207 let hunk_bounds = Self::diff_hunk_bounds(
4208 &layout.position_map.snapshot,
4209 line_height,
4210 layout.gutter_hitbox.bounds,
4211 hunk,
4212 );
4213 Some((
4214 hunk_bounds,
4215 cx.theme().status().modified,
4216 Corners::all(px(0.)),
4217 ))
4218 }
4219 DisplayDiffHunk::Unfolded {
4220 status,
4221 display_row_range,
4222 ..
4223 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4224 DiffHunkStatus::Added => (
4225 hunk_hitbox.bounds,
4226 cx.theme().status().created,
4227 Corners::all(px(0.)),
4228 ),
4229 DiffHunkStatus::Modified => (
4230 hunk_hitbox.bounds,
4231 cx.theme().status().modified,
4232 Corners::all(px(0.)),
4233 ),
4234 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4235 hunk_hitbox.bounds,
4236 cx.theme().status().deleted,
4237 Corners::all(px(0.)),
4238 ),
4239 DiffHunkStatus::Removed => (
4240 Bounds::new(
4241 point(
4242 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4243 hunk_hitbox.origin.y,
4244 ),
4245 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4246 ),
4247 cx.theme().status().deleted,
4248 Corners::all(1. * line_height),
4249 ),
4250 }),
4251 };
4252
4253 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4254 window.paint_quad(quad(
4255 hunk_bounds,
4256 corner_radii,
4257 background_color,
4258 Edges::default(),
4259 transparent_black(),
4260 ));
4261 }
4262 }
4263 });
4264 }
4265
4266 fn diff_hunk_bounds(
4267 snapshot: &EditorSnapshot,
4268 line_height: Pixels,
4269 gutter_bounds: Bounds<Pixels>,
4270 hunk: &DisplayDiffHunk,
4271 ) -> Bounds<Pixels> {
4272 let scroll_position = snapshot.scroll_position();
4273 let scroll_top = scroll_position.y * line_height;
4274 let gutter_strip_width = (0.275 * line_height).floor();
4275
4276 match hunk {
4277 DisplayDiffHunk::Folded { display_row, .. } => {
4278 let start_y = display_row.as_f32() * line_height - scroll_top;
4279 let end_y = start_y + line_height;
4280 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4281 let highlight_size = size(gutter_strip_width, end_y - start_y);
4282 Bounds::new(highlight_origin, highlight_size)
4283 }
4284 DisplayDiffHunk::Unfolded {
4285 display_row_range,
4286 status,
4287 ..
4288 } => {
4289 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4290 let row = display_row_range.start;
4291
4292 let offset = line_height / 2.;
4293 let start_y = row.as_f32() * line_height - offset - scroll_top;
4294 let end_y = start_y + line_height;
4295
4296 let width = (0.35 * line_height).floor();
4297 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4298 let highlight_size = size(width, end_y - start_y);
4299 Bounds::new(highlight_origin, highlight_size)
4300 } else {
4301 let start_row = display_row_range.start;
4302 let end_row = display_row_range.end;
4303 // If we're in a multibuffer, row range span might include an
4304 // excerpt header, so if we were to draw the marker straight away,
4305 // the hunk might include the rows of that header.
4306 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4307 // Instead, we simply check whether the range we're dealing with includes
4308 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4309 let end_row_in_current_excerpt = snapshot
4310 .blocks_in_range(start_row..end_row)
4311 .find_map(|(start_row, block)| {
4312 if matches!(block, Block::ExcerptBoundary { .. }) {
4313 Some(start_row)
4314 } else {
4315 None
4316 }
4317 })
4318 .unwrap_or(end_row);
4319
4320 let start_y = start_row.as_f32() * line_height - scroll_top;
4321 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4322
4323 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4324 let highlight_size = size(gutter_strip_width, end_y - start_y);
4325 Bounds::new(highlight_origin, highlight_size)
4326 }
4327 }
4328 }
4329 }
4330
4331 fn paint_gutter_indicators(
4332 &self,
4333 layout: &mut EditorLayout,
4334 window: &mut Window,
4335 cx: &mut App,
4336 ) {
4337 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4338 window.with_element_namespace("crease_toggles", |window| {
4339 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4340 crease_toggle.paint(window, cx);
4341 }
4342 });
4343
4344 for test_indicator in layout.test_indicators.iter_mut() {
4345 test_indicator.paint(window, cx);
4346 }
4347
4348 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4349 indicator.paint(window, cx);
4350 }
4351 });
4352 }
4353
4354 fn paint_gutter_highlights(
4355 &self,
4356 layout: &mut EditorLayout,
4357 window: &mut Window,
4358 cx: &mut App,
4359 ) {
4360 for (_, hunk_hitbox) in &layout.display_hunks {
4361 if let Some(hunk_hitbox) = hunk_hitbox {
4362 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4363 }
4364 }
4365
4366 let show_git_gutter = layout
4367 .position_map
4368 .snapshot
4369 .show_git_diff_gutter
4370 .unwrap_or_else(|| {
4371 matches!(
4372 ProjectSettings::get_global(cx).git.git_gutter,
4373 Some(GitGutterSetting::TrackedFiles)
4374 )
4375 });
4376 if show_git_gutter {
4377 Self::paint_diff_hunks(layout, window, cx)
4378 }
4379
4380 let highlight_width = 0.275 * layout.position_map.line_height;
4381 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4382 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4383 for (range, color) in &layout.highlighted_gutter_ranges {
4384 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4385 layout.visible_display_row_range.start - DisplayRow(1)
4386 } else {
4387 range.start.row()
4388 };
4389 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4390 layout.visible_display_row_range.end + DisplayRow(1)
4391 } else {
4392 range.end.row()
4393 };
4394
4395 let start_y = layout.gutter_hitbox.top()
4396 + start_row.0 as f32 * layout.position_map.line_height
4397 - layout.position_map.scroll_pixel_position.y;
4398 let end_y = layout.gutter_hitbox.top()
4399 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4400 - layout.position_map.scroll_pixel_position.y;
4401 let bounds = Bounds::from_corners(
4402 point(layout.gutter_hitbox.left(), start_y),
4403 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4404 );
4405 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4406 }
4407 });
4408 }
4409
4410 fn paint_blamed_display_rows(
4411 &self,
4412 layout: &mut EditorLayout,
4413 window: &mut Window,
4414 cx: &mut App,
4415 ) {
4416 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4417 return;
4418 };
4419
4420 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4421 for mut blame_element in blamed_display_rows.into_iter() {
4422 blame_element.paint(window, cx);
4423 }
4424 })
4425 }
4426
4427 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4428 window.with_content_mask(
4429 Some(ContentMask {
4430 bounds: layout.text_hitbox.bounds,
4431 }),
4432 |window| {
4433 let cursor_style = if self
4434 .editor
4435 .read(cx)
4436 .hovered_link_state
4437 .as_ref()
4438 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4439 {
4440 CursorStyle::PointingHand
4441 } else {
4442 CursorStyle::IBeam
4443 };
4444 window.set_cursor_style(cursor_style, &layout.text_hitbox);
4445
4446 let invisible_display_ranges = self.paint_highlights(layout, window);
4447 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4448 self.paint_redactions(layout, window);
4449 self.paint_cursors(layout, window, cx);
4450 self.paint_inline_blame(layout, window, cx);
4451 self.paint_diff_hunk_controls(layout, window, cx);
4452 window.with_element_namespace("crease_trailers", |window| {
4453 for trailer in layout.crease_trailers.iter_mut().flatten() {
4454 trailer.element.paint(window, cx);
4455 }
4456 });
4457 },
4458 )
4459 }
4460
4461 fn paint_highlights(
4462 &mut self,
4463 layout: &mut EditorLayout,
4464 window: &mut Window,
4465 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4466 window.paint_layer(layout.text_hitbox.bounds, |window| {
4467 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4468 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4469 for (range, color) in &layout.highlighted_ranges {
4470 self.paint_highlighted_range(
4471 range.clone(),
4472 *color,
4473 Pixels::ZERO,
4474 line_end_overshoot,
4475 layout,
4476 window,
4477 );
4478 }
4479
4480 let corner_radius = 0.15 * layout.position_map.line_height;
4481
4482 for (player_color, selections) in &layout.selections {
4483 for selection in selections.iter() {
4484 self.paint_highlighted_range(
4485 selection.range.clone(),
4486 player_color.selection,
4487 corner_radius,
4488 corner_radius * 2.,
4489 layout,
4490 window,
4491 );
4492
4493 if selection.is_local && !selection.range.is_empty() {
4494 invisible_display_ranges.push(selection.range.clone());
4495 }
4496 }
4497 }
4498 invisible_display_ranges
4499 })
4500 }
4501
4502 fn paint_lines(
4503 &mut self,
4504 invisible_display_ranges: &[Range<DisplayPoint>],
4505 layout: &mut EditorLayout,
4506 window: &mut Window,
4507 cx: &mut App,
4508 ) {
4509 let whitespace_setting = self
4510 .editor
4511 .read(cx)
4512 .buffer
4513 .read(cx)
4514 .settings_at(0, cx)
4515 .show_whitespaces;
4516
4517 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4518 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4519 line_with_invisibles.draw(
4520 layout,
4521 row,
4522 layout.content_origin,
4523 whitespace_setting,
4524 invisible_display_ranges,
4525 window,
4526 cx,
4527 )
4528 }
4529
4530 for line_element in &mut layout.line_elements {
4531 line_element.paint(window, cx);
4532 }
4533 }
4534
4535 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4536 if layout.redacted_ranges.is_empty() {
4537 return;
4538 }
4539
4540 let line_end_overshoot = layout.line_end_overshoot();
4541
4542 // A softer than perfect black
4543 let redaction_color = gpui::rgb(0x0e1111);
4544
4545 window.paint_layer(layout.text_hitbox.bounds, |window| {
4546 for range in layout.redacted_ranges.iter() {
4547 self.paint_highlighted_range(
4548 range.clone(),
4549 redaction_color.into(),
4550 Pixels::ZERO,
4551 line_end_overshoot,
4552 layout,
4553 window,
4554 );
4555 }
4556 });
4557 }
4558
4559 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4560 for cursor in &mut layout.visible_cursors {
4561 cursor.paint(layout.content_origin, window, cx);
4562 }
4563 }
4564
4565 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4566 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4567
4568 if let Some(scrollbar_layout) = scrollbar_x {
4569 let hitbox = scrollbar_layout.hitbox.clone();
4570 let text_unit_size = scrollbar_layout.text_unit_size;
4571 let visible_range = scrollbar_layout.visible_range.clone();
4572 let thumb_bounds = scrollbar_layout.thumb_bounds();
4573
4574 if scrollbar_layout.visible {
4575 window.paint_layer(hitbox.bounds, |window| {
4576 window.paint_quad(quad(
4577 hitbox.bounds,
4578 Corners::default(),
4579 cx.theme().colors().scrollbar_track_background,
4580 Edges {
4581 top: Pixels::ZERO,
4582 right: Pixels::ZERO,
4583 bottom: Pixels::ZERO,
4584 left: Pixels::ZERO,
4585 },
4586 cx.theme().colors().scrollbar_track_border,
4587 ));
4588
4589 window.paint_quad(quad(
4590 thumb_bounds,
4591 Corners::default(),
4592 cx.theme().colors().scrollbar_thumb_background,
4593 Edges {
4594 top: Pixels::ZERO,
4595 right: Pixels::ZERO,
4596 bottom: Pixels::ZERO,
4597 left: ScrollbarLayout::BORDER_WIDTH,
4598 },
4599 cx.theme().colors().scrollbar_thumb_border,
4600 ));
4601 })
4602 }
4603
4604 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4605
4606 window.on_mouse_event({
4607 let editor = self.editor.clone();
4608
4609 // there may be a way to avoid this clone
4610 let hitbox = hitbox.clone();
4611
4612 let mut mouse_position = window.mouse_position();
4613 move |event: &MouseMoveEvent, phase, window, cx| {
4614 if phase == DispatchPhase::Capture {
4615 return;
4616 }
4617
4618 editor.update(cx, |editor, cx| {
4619 if event.pressed_button == Some(MouseButton::Left)
4620 && editor
4621 .scroll_manager
4622 .is_dragging_scrollbar(Axis::Horizontal)
4623 {
4624 let x = mouse_position.x;
4625 let new_x = event.position.x;
4626 if (hitbox.left()..hitbox.right()).contains(&x) {
4627 let mut position = editor.scroll_position(cx);
4628
4629 position.x += (new_x - x) / text_unit_size;
4630 if position.x < 0.0 {
4631 position.x = 0.0;
4632 }
4633 editor.set_scroll_position(position, window, cx);
4634 }
4635
4636 cx.stop_propagation();
4637 } else {
4638 editor.scroll_manager.set_is_dragging_scrollbar(
4639 Axis::Horizontal,
4640 false,
4641 cx,
4642 );
4643
4644 if hitbox.is_hovered(window) {
4645 editor.scroll_manager.show_scrollbar(window, cx);
4646 }
4647 }
4648 mouse_position = event.position;
4649 })
4650 }
4651 });
4652
4653 if self
4654 .editor
4655 .read(cx)
4656 .scroll_manager
4657 .is_dragging_scrollbar(Axis::Horizontal)
4658 {
4659 window.on_mouse_event({
4660 let editor = self.editor.clone();
4661 move |_: &MouseUpEvent, phase, _, cx| {
4662 if phase == DispatchPhase::Capture {
4663 return;
4664 }
4665
4666 editor.update(cx, |editor, cx| {
4667 editor.scroll_manager.set_is_dragging_scrollbar(
4668 Axis::Horizontal,
4669 false,
4670 cx,
4671 );
4672 cx.stop_propagation();
4673 });
4674 }
4675 });
4676 } else {
4677 window.on_mouse_event({
4678 let editor = self.editor.clone();
4679
4680 move |event: &MouseDownEvent, phase, window, cx| {
4681 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4682 return;
4683 }
4684
4685 editor.update(cx, |editor, cx| {
4686 editor.scroll_manager.set_is_dragging_scrollbar(
4687 Axis::Horizontal,
4688 true,
4689 cx,
4690 );
4691
4692 let x = event.position.x;
4693
4694 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4695 let center_row =
4696 ((x - hitbox.left()) / text_unit_size).round() as u32;
4697 let top_row = center_row.saturating_sub(
4698 (visible_range.end - visible_range.start) as u32 / 2,
4699 );
4700
4701 let mut position = editor.scroll_position(cx);
4702 position.x = top_row as f32;
4703
4704 editor.set_scroll_position(position, window, cx);
4705 } else {
4706 editor.scroll_manager.show_scrollbar(window, cx);
4707 }
4708
4709 cx.stop_propagation();
4710 });
4711 }
4712 });
4713 }
4714 }
4715
4716 if let Some(scrollbar_layout) = scrollbar_y {
4717 let hitbox = scrollbar_layout.hitbox.clone();
4718 let text_unit_size = scrollbar_layout.text_unit_size;
4719 let visible_range = scrollbar_layout.visible_range.clone();
4720 let thumb_bounds = scrollbar_layout.thumb_bounds();
4721
4722 if scrollbar_layout.visible {
4723 window.paint_layer(hitbox.bounds, |window| {
4724 window.paint_quad(quad(
4725 hitbox.bounds,
4726 Corners::default(),
4727 cx.theme().colors().scrollbar_track_background,
4728 Edges {
4729 top: Pixels::ZERO,
4730 right: Pixels::ZERO,
4731 bottom: Pixels::ZERO,
4732 left: ScrollbarLayout::BORDER_WIDTH,
4733 },
4734 cx.theme().colors().scrollbar_track_border,
4735 ));
4736
4737 let fast_markers =
4738 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4739 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4740 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4741
4742 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4743 for marker in markers.iter().chain(&fast_markers) {
4744 let mut marker = marker.clone();
4745 marker.bounds.origin += hitbox.origin;
4746 window.paint_quad(marker);
4747 }
4748
4749 window.paint_quad(quad(
4750 thumb_bounds,
4751 Corners::default(),
4752 cx.theme().colors().scrollbar_thumb_background,
4753 Edges {
4754 top: Pixels::ZERO,
4755 right: Pixels::ZERO,
4756 bottom: Pixels::ZERO,
4757 left: ScrollbarLayout::BORDER_WIDTH,
4758 },
4759 cx.theme().colors().scrollbar_thumb_border,
4760 ));
4761 });
4762 }
4763
4764 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4765
4766 window.on_mouse_event({
4767 let editor = self.editor.clone();
4768
4769 let hitbox = hitbox.clone();
4770
4771 let mut mouse_position = window.mouse_position();
4772 move |event: &MouseMoveEvent, phase, window, cx| {
4773 if phase == DispatchPhase::Capture {
4774 return;
4775 }
4776
4777 editor.update(cx, |editor, cx| {
4778 if event.pressed_button == Some(MouseButton::Left)
4779 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4780 {
4781 let y = mouse_position.y;
4782 let new_y = event.position.y;
4783 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4784 let mut position = editor.scroll_position(cx);
4785 position.y += (new_y - y) / text_unit_size;
4786 if position.y < 0.0 {
4787 position.y = 0.0;
4788 }
4789 editor.set_scroll_position(position, window, cx);
4790 }
4791 } else {
4792 editor.scroll_manager.set_is_dragging_scrollbar(
4793 Axis::Vertical,
4794 false,
4795 cx,
4796 );
4797
4798 if hitbox.is_hovered(window) {
4799 editor.scroll_manager.show_scrollbar(window, cx);
4800 }
4801 }
4802 mouse_position = event.position;
4803 })
4804 }
4805 });
4806
4807 if self
4808 .editor
4809 .read(cx)
4810 .scroll_manager
4811 .is_dragging_scrollbar(Axis::Vertical)
4812 {
4813 window.on_mouse_event({
4814 let editor = self.editor.clone();
4815 move |_: &MouseUpEvent, phase, _, cx| {
4816 if phase == DispatchPhase::Capture {
4817 return;
4818 }
4819
4820 editor.update(cx, |editor, cx| {
4821 editor.scroll_manager.set_is_dragging_scrollbar(
4822 Axis::Vertical,
4823 false,
4824 cx,
4825 );
4826 cx.stop_propagation();
4827 });
4828 }
4829 });
4830 } else {
4831 window.on_mouse_event({
4832 let editor = self.editor.clone();
4833
4834 move |event: &MouseDownEvent, phase, window, cx| {
4835 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4836 return;
4837 }
4838
4839 editor.update(cx, |editor, cx| {
4840 editor.scroll_manager.set_is_dragging_scrollbar(
4841 Axis::Vertical,
4842 true,
4843 cx,
4844 );
4845
4846 let y = event.position.y;
4847 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
4848 let center_row =
4849 ((y - hitbox.top()) / text_unit_size).round() as u32;
4850 let top_row = center_row.saturating_sub(
4851 (visible_range.end - visible_range.start) as u32 / 2,
4852 );
4853 let mut position = editor.scroll_position(cx);
4854 position.y = top_row as f32;
4855 editor.set_scroll_position(position, window, cx);
4856 } else {
4857 editor.scroll_manager.show_scrollbar(window, cx);
4858 }
4859
4860 cx.stop_propagation();
4861 });
4862 }
4863 });
4864 }
4865 }
4866 }
4867
4868 fn collect_fast_scrollbar_markers(
4869 &self,
4870 layout: &EditorLayout,
4871 scrollbar_layout: &ScrollbarLayout,
4872 cx: &mut App,
4873 ) -> Vec<PaintQuad> {
4874 const LIMIT: usize = 100;
4875 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4876 return vec![];
4877 }
4878 let cursor_ranges = layout
4879 .cursors
4880 .iter()
4881 .map(|(point, color)| ColoredRange {
4882 start: point.row(),
4883 end: point.row(),
4884 color: *color,
4885 })
4886 .collect_vec();
4887 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4888 }
4889
4890 fn refresh_slow_scrollbar_markers(
4891 &self,
4892 layout: &EditorLayout,
4893 scrollbar_layout: &ScrollbarLayout,
4894 window: &mut Window,
4895 cx: &mut App,
4896 ) {
4897 self.editor.update(cx, |editor, cx| {
4898 if !editor.is_singleton(cx)
4899 || !editor
4900 .scrollbar_marker_state
4901 .should_refresh(scrollbar_layout.hitbox.size)
4902 {
4903 return;
4904 }
4905
4906 let scrollbar_layout = scrollbar_layout.clone();
4907 let background_highlights = editor.background_highlights.clone();
4908 let snapshot = layout.position_map.snapshot.clone();
4909 let theme = cx.theme().clone();
4910 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
4911
4912 editor.scrollbar_marker_state.dirty = false;
4913 editor.scrollbar_marker_state.pending_refresh =
4914 Some(cx.spawn_in(window, |editor, mut cx| async move {
4915 let scrollbar_size = scrollbar_layout.hitbox.size;
4916 let scrollbar_markers = cx
4917 .background_executor()
4918 .spawn(async move {
4919 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
4920 let mut marker_quads = Vec::new();
4921 if scrollbar_settings.git_diff {
4922 let marker_row_ranges =
4923 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
4924 let start_display_row =
4925 MultiBufferPoint::new(hunk.row_range.start.0, 0)
4926 .to_display_point(&snapshot.display_snapshot)
4927 .row();
4928 let mut end_display_row =
4929 MultiBufferPoint::new(hunk.row_range.end.0, 0)
4930 .to_display_point(&snapshot.display_snapshot)
4931 .row();
4932 if end_display_row != start_display_row {
4933 end_display_row.0 -= 1;
4934 }
4935 let color = match &hunk.status() {
4936 DiffHunkStatus::Added => theme.status().created,
4937 DiffHunkStatus::Modified => theme.status().modified,
4938 DiffHunkStatus::Removed => theme.status().deleted,
4939 };
4940 ColoredRange {
4941 start: start_display_row,
4942 end: end_display_row,
4943 color,
4944 }
4945 });
4946
4947 marker_quads.extend(
4948 scrollbar_layout
4949 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
4950 );
4951 }
4952
4953 for (background_highlight_id, (_, background_ranges)) in
4954 background_highlights.iter()
4955 {
4956 let is_search_highlights = *background_highlight_id
4957 == TypeId::of::<BufferSearchHighlights>();
4958 let is_symbol_occurrences = *background_highlight_id
4959 == TypeId::of::<DocumentHighlightRead>()
4960 || *background_highlight_id
4961 == TypeId::of::<DocumentHighlightWrite>();
4962 if (is_search_highlights && scrollbar_settings.search_results)
4963 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
4964 {
4965 let mut color = theme.status().info;
4966 if is_symbol_occurrences {
4967 color.fade_out(0.5);
4968 }
4969 let marker_row_ranges = background_ranges.iter().map(|range| {
4970 let display_start = range
4971 .start
4972 .to_display_point(&snapshot.display_snapshot);
4973 let display_end =
4974 range.end.to_display_point(&snapshot.display_snapshot);
4975 ColoredRange {
4976 start: display_start.row(),
4977 end: display_end.row(),
4978 color,
4979 }
4980 });
4981 marker_quads.extend(
4982 scrollbar_layout
4983 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
4984 );
4985 }
4986 }
4987
4988 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
4989 let diagnostics = snapshot
4990 .buffer_snapshot
4991 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
4992 // Don't show diagnostics the user doesn't care about
4993 .filter(|diagnostic| {
4994 match (
4995 scrollbar_settings.diagnostics,
4996 diagnostic.diagnostic.severity,
4997 ) {
4998 (ScrollbarDiagnostics::All, _) => true,
4999 (
5000 ScrollbarDiagnostics::Error,
5001 DiagnosticSeverity::ERROR,
5002 ) => true,
5003 (
5004 ScrollbarDiagnostics::Warning,
5005 DiagnosticSeverity::ERROR
5006 | DiagnosticSeverity::WARNING,
5007 ) => true,
5008 (
5009 ScrollbarDiagnostics::Information,
5010 DiagnosticSeverity::ERROR
5011 | DiagnosticSeverity::WARNING
5012 | DiagnosticSeverity::INFORMATION,
5013 ) => true,
5014 (_, _) => false,
5015 }
5016 })
5017 // We want to sort by severity, in order to paint the most severe diagnostics last.
5018 .sorted_by_key(|diagnostic| {
5019 std::cmp::Reverse(diagnostic.diagnostic.severity)
5020 });
5021
5022 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5023 let start_display = diagnostic
5024 .range
5025 .start
5026 .to_display_point(&snapshot.display_snapshot);
5027 let end_display = diagnostic
5028 .range
5029 .end
5030 .to_display_point(&snapshot.display_snapshot);
5031 let color = match diagnostic.diagnostic.severity {
5032 DiagnosticSeverity::ERROR => theme.status().error,
5033 DiagnosticSeverity::WARNING => theme.status().warning,
5034 DiagnosticSeverity::INFORMATION => theme.status().info,
5035 _ => theme.status().hint,
5036 };
5037 ColoredRange {
5038 start: start_display.row(),
5039 end: end_display.row(),
5040 color,
5041 }
5042 });
5043 marker_quads.extend(
5044 scrollbar_layout
5045 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5046 );
5047 }
5048
5049 Arc::from(marker_quads)
5050 })
5051 .await;
5052
5053 editor.update(&mut cx, |editor, cx| {
5054 editor.scrollbar_marker_state.markers = scrollbar_markers;
5055 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5056 editor.scrollbar_marker_state.pending_refresh = None;
5057 cx.notify();
5058 })?;
5059
5060 Ok(())
5061 }));
5062 });
5063 }
5064
5065 #[allow(clippy::too_many_arguments)]
5066 fn paint_highlighted_range(
5067 &self,
5068 range: Range<DisplayPoint>,
5069 color: Hsla,
5070 corner_radius: Pixels,
5071 line_end_overshoot: Pixels,
5072 layout: &EditorLayout,
5073 window: &mut Window,
5074 ) {
5075 let start_row = layout.visible_display_row_range.start;
5076 let end_row = layout.visible_display_row_range.end;
5077 if range.start != range.end {
5078 let row_range = if range.end.column() == 0 {
5079 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5080 } else {
5081 cmp::max(range.start.row(), start_row)
5082 ..cmp::min(range.end.row().next_row(), end_row)
5083 };
5084
5085 let highlighted_range = HighlightedRange {
5086 color,
5087 line_height: layout.position_map.line_height,
5088 corner_radius,
5089 start_y: layout.content_origin.y
5090 + row_range.start.as_f32() * layout.position_map.line_height
5091 - layout.position_map.scroll_pixel_position.y,
5092 lines: row_range
5093 .iter_rows()
5094 .map(|row| {
5095 let line_layout =
5096 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5097 HighlightedRangeLine {
5098 start_x: if row == range.start.row() {
5099 layout.content_origin.x
5100 + line_layout.x_for_index(range.start.column() as usize)
5101 - layout.position_map.scroll_pixel_position.x
5102 } else {
5103 layout.content_origin.x
5104 - layout.position_map.scroll_pixel_position.x
5105 },
5106 end_x: if row == range.end.row() {
5107 layout.content_origin.x
5108 + line_layout.x_for_index(range.end.column() as usize)
5109 - layout.position_map.scroll_pixel_position.x
5110 } else {
5111 layout.content_origin.x + line_layout.width + line_end_overshoot
5112 - layout.position_map.scroll_pixel_position.x
5113 },
5114 }
5115 })
5116 .collect(),
5117 };
5118
5119 highlighted_range.paint(layout.text_hitbox.bounds, window);
5120 }
5121 }
5122
5123 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5124 if let Some(mut inline_blame) = layout.inline_blame.take() {
5125 window.paint_layer(layout.text_hitbox.bounds, |window| {
5126 inline_blame.paint(window, cx);
5127 })
5128 }
5129 }
5130
5131 fn paint_diff_hunk_controls(
5132 &mut self,
5133 layout: &mut EditorLayout,
5134 window: &mut Window,
5135 cx: &mut App,
5136 ) {
5137 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5138 diff_hunk_control.paint(window, cx);
5139 }
5140 }
5141
5142 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5143 for mut block in layout.blocks.drain(..) {
5144 block.element.paint(window, cx);
5145 }
5146 }
5147
5148 fn paint_inline_completion_popover(
5149 &mut self,
5150 layout: &mut EditorLayout,
5151 window: &mut Window,
5152 cx: &mut App,
5153 ) {
5154 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5155 inline_completion_popover.paint(window, cx);
5156 }
5157 }
5158
5159 fn paint_mouse_context_menu(
5160 &mut self,
5161 layout: &mut EditorLayout,
5162 window: &mut Window,
5163 cx: &mut App,
5164 ) {
5165 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5166 mouse_context_menu.paint(window, cx);
5167 }
5168 }
5169
5170 fn paint_scroll_wheel_listener(
5171 &mut self,
5172 layout: &EditorLayout,
5173 window: &mut Window,
5174 cx: &mut App,
5175 ) {
5176 window.on_mouse_event({
5177 let position_map = layout.position_map.clone();
5178 let editor = self.editor.clone();
5179 let hitbox = layout.hitbox.clone();
5180 let mut delta = ScrollDelta::default();
5181
5182 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5183 // accidentally turn off their scrolling.
5184 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5185
5186 move |event: &ScrollWheelEvent, phase, window, cx| {
5187 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5188 delta = delta.coalesce(event.delta);
5189 editor.update(cx, |editor, cx| {
5190 let position_map: &PositionMap = &position_map;
5191
5192 let line_height = position_map.line_height;
5193 let max_glyph_width = position_map.em_width;
5194 let (delta, axis) = match delta {
5195 gpui::ScrollDelta::Pixels(mut pixels) => {
5196 //Trackpad
5197 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5198 (pixels, axis)
5199 }
5200
5201 gpui::ScrollDelta::Lines(lines) => {
5202 //Not trackpad
5203 let pixels =
5204 point(lines.x * max_glyph_width, lines.y * line_height);
5205 (pixels, None)
5206 }
5207 };
5208
5209 let current_scroll_position = position_map.snapshot.scroll_position();
5210 let x = (current_scroll_position.x * max_glyph_width
5211 - (delta.x * scroll_sensitivity))
5212 / max_glyph_width;
5213 let y = (current_scroll_position.y * line_height
5214 - (delta.y * scroll_sensitivity))
5215 / line_height;
5216 let mut scroll_position =
5217 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5218 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5219 if forbid_vertical_scroll {
5220 scroll_position.y = current_scroll_position.y;
5221 }
5222
5223 if scroll_position != current_scroll_position {
5224 editor.scroll(scroll_position, axis, window, cx);
5225 cx.stop_propagation();
5226 } else if y < 0. {
5227 // Due to clamping, we may fail to detect cases of overscroll to the top;
5228 // We want the scroll manager to get an update in such cases and detect the change of direction
5229 // on the next frame.
5230 cx.notify();
5231 }
5232 });
5233 }
5234 }
5235 });
5236 }
5237
5238 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5239 self.paint_scroll_wheel_listener(layout, window, cx);
5240
5241 window.on_mouse_event({
5242 let position_map = layout.position_map.clone();
5243 let editor = self.editor.clone();
5244 let text_hitbox = layout.text_hitbox.clone();
5245 let gutter_hitbox = layout.gutter_hitbox.clone();
5246 let multi_buffer_range =
5247 layout
5248 .display_hunks
5249 .iter()
5250 .find_map(|(hunk, hunk_hitbox)| match hunk {
5251 DisplayDiffHunk::Folded { .. } => None,
5252 DisplayDiffHunk::Unfolded {
5253 multi_buffer_range, ..
5254 } => {
5255 if hunk_hitbox
5256 .as_ref()
5257 .map(|hitbox| hitbox.is_hovered(window))
5258 .unwrap_or(false)
5259 {
5260 Some(multi_buffer_range.clone())
5261 } else {
5262 None
5263 }
5264 }
5265 });
5266 let line_numbers = layout.line_numbers.clone();
5267
5268 move |event: &MouseDownEvent, phase, window, cx| {
5269 if phase == DispatchPhase::Bubble {
5270 match event.button {
5271 MouseButton::Left => editor.update(cx, |editor, cx| {
5272 Self::mouse_left_down(
5273 editor,
5274 event,
5275 multi_buffer_range.clone(),
5276 &position_map,
5277 &text_hitbox,
5278 &gutter_hitbox,
5279 line_numbers.as_ref(),
5280 window,
5281 cx,
5282 );
5283 }),
5284 MouseButton::Right => editor.update(cx, |editor, cx| {
5285 Self::mouse_right_down(
5286 editor,
5287 event,
5288 &position_map,
5289 &text_hitbox,
5290 window,
5291 cx,
5292 );
5293 }),
5294 MouseButton::Middle => editor.update(cx, |editor, cx| {
5295 Self::mouse_middle_down(
5296 editor,
5297 event,
5298 &position_map,
5299 &text_hitbox,
5300 window,
5301 cx,
5302 );
5303 }),
5304 _ => {}
5305 };
5306 }
5307 }
5308 });
5309
5310 window.on_mouse_event({
5311 let editor = self.editor.clone();
5312 let position_map = layout.position_map.clone();
5313 let text_hitbox = layout.text_hitbox.clone();
5314
5315 move |event: &MouseUpEvent, phase, window, cx| {
5316 if phase == DispatchPhase::Bubble {
5317 editor.update(cx, |editor, cx| {
5318 Self::mouse_up(editor, event, &position_map, &text_hitbox, window, cx)
5319 });
5320 }
5321 }
5322 });
5323 window.on_mouse_event({
5324 let position_map = layout.position_map.clone();
5325 let editor = self.editor.clone();
5326 let text_hitbox = layout.text_hitbox.clone();
5327 let gutter_hitbox = layout.gutter_hitbox.clone();
5328
5329 move |event: &MouseMoveEvent, phase, window, cx| {
5330 if phase == DispatchPhase::Bubble {
5331 editor.update(cx, |editor, cx| {
5332 if editor.hover_state.focused(window, cx) {
5333 return;
5334 }
5335 if event.pressed_button == Some(MouseButton::Left)
5336 || event.pressed_button == Some(MouseButton::Middle)
5337 {
5338 Self::mouse_dragged(
5339 editor,
5340 event,
5341 &position_map,
5342 text_hitbox.bounds,
5343 window,
5344 cx,
5345 )
5346 }
5347
5348 Self::mouse_moved(
5349 editor,
5350 event,
5351 &position_map,
5352 &text_hitbox,
5353 &gutter_hitbox,
5354 window,
5355 cx,
5356 )
5357 });
5358 }
5359 }
5360 });
5361 }
5362
5363 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5364 bounds.top_right().x - self.style.scrollbar_width
5365 }
5366
5367 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5368 let style = &self.style;
5369 let font_size = style.text.font_size.to_pixels(window.rem_size());
5370 let layout = window
5371 .text_system()
5372 .shape_line(
5373 SharedString::from(" ".repeat(column)),
5374 font_size,
5375 &[TextRun {
5376 len: column,
5377 font: style.text.font(),
5378 color: Hsla::default(),
5379 background_color: None,
5380 underline: None,
5381 strikethrough: None,
5382 }],
5383 )
5384 .unwrap();
5385
5386 layout.width
5387 }
5388
5389 fn max_line_number_width(
5390 &self,
5391 snapshot: &EditorSnapshot,
5392 window: &mut Window,
5393 cx: &mut App,
5394 ) -> Pixels {
5395 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5396 self.column_pixels(digit_count, window, cx)
5397 }
5398
5399 fn shape_line_number(
5400 &self,
5401 text: SharedString,
5402 color: Hsla,
5403 window: &mut Window,
5404 ) -> anyhow::Result<ShapedLine> {
5405 let run = TextRun {
5406 len: text.len(),
5407 font: self.style.text.font(),
5408 color,
5409 background_color: None,
5410 underline: None,
5411 strikethrough: None,
5412 };
5413 window.text_system().shape_line(
5414 text,
5415 self.style.text.font_size.to_pixels(window.rem_size()),
5416 &[run],
5417 )
5418 }
5419}
5420
5421fn header_jump_data(
5422 snapshot: &EditorSnapshot,
5423 block_row_start: DisplayRow,
5424 height: u32,
5425 for_excerpt: &ExcerptInfo,
5426) -> JumpData {
5427 let range = &for_excerpt.range;
5428 let buffer = &for_excerpt.buffer;
5429 let jump_anchor = range
5430 .primary
5431 .as_ref()
5432 .map_or(range.context.start, |primary| primary.start);
5433
5434 let excerpt_start = range.context.start;
5435 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5436 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
5437 0
5438 } else {
5439 let excerpt_start_row = language::ToPoint::to_point(&excerpt_start, buffer).row;
5440 jump_position.row - excerpt_start_row
5441 };
5442
5443 let line_offset_from_top = (block_row_start.0 + height + offset_from_excerpt_start)
5444 .saturating_sub(
5445 snapshot
5446 .scroll_anchor
5447 .scroll_position(&snapshot.display_snapshot)
5448 .y as u32,
5449 );
5450
5451 JumpData::MultiBufferPoint {
5452 excerpt_id: for_excerpt.id,
5453 anchor: jump_anchor,
5454 position: language::ToPoint::to_point(&jump_anchor, buffer),
5455 line_offset_from_top,
5456 }
5457}
5458
5459fn inline_completion_tab_indicator(
5460 label: impl Into<SharedString>,
5461 icon: Option<IconName>,
5462 cx: &App,
5463) -> AnyElement {
5464 let tab_kbd = h_flex()
5465 .px_0p5()
5466 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5467 .text_size(TextSize::XSmall.rems(cx))
5468 .text_color(cx.theme().colors().text)
5469 .child("tab");
5470
5471 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5472
5473 h_flex()
5474 .py_0p5()
5475 .pl_1()
5476 .pr(padding_right)
5477 .gap_1()
5478 .bg(cx.theme().colors().text_accent.opacity(0.15))
5479 .border_1()
5480 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5481 .rounded_md()
5482 .shadow_sm()
5483 .child(tab_kbd)
5484 .child(Label::new(label).size(LabelSize::Small))
5485 .when_some(icon, |element, icon| {
5486 element.child(
5487 div()
5488 .mt(px(1.5))
5489 .child(Icon::new(icon).size(IconSize::Small)),
5490 )
5491 })
5492 .into_any()
5493}
5494
5495#[allow(clippy::too_many_arguments)]
5496fn prepaint_gutter_button(
5497 button: IconButton,
5498 row: DisplayRow,
5499 line_height: Pixels,
5500 gutter_dimensions: &GutterDimensions,
5501 scroll_pixel_position: gpui::Point<Pixels>,
5502 gutter_hitbox: &Hitbox,
5503 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5504 window: &mut Window,
5505 cx: &mut App,
5506) -> AnyElement {
5507 let mut button = button.into_any_element();
5508 let available_space = size(
5509 AvailableSpace::MinContent,
5510 AvailableSpace::Definite(line_height),
5511 );
5512 let indicator_size = button.layout_as_root(available_space, window, cx);
5513
5514 let blame_width = gutter_dimensions.git_blame_entries_width;
5515 let gutter_width = rows_with_hunk_bounds
5516 .get(&row)
5517 .map(|bounds| bounds.size.width);
5518 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5519
5520 let mut x = left_offset;
5521 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5522 - indicator_size.width
5523 - left_offset;
5524 x += available_width / 2.;
5525
5526 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5527 y += (line_height - indicator_size.height) / 2.;
5528
5529 button.prepaint_as_root(
5530 gutter_hitbox.origin + point(x, y),
5531 available_space,
5532 window,
5533 cx,
5534 );
5535 button
5536}
5537
5538fn render_inline_blame_entry(
5539 blame: &gpui::Entity<GitBlame>,
5540 blame_entry: BlameEntry,
5541 style: &EditorStyle,
5542 workspace: Option<WeakEntity<Workspace>>,
5543 cx: &mut App,
5544) -> AnyElement {
5545 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5546
5547 let author = blame_entry.author.as_deref().unwrap_or_default();
5548 let summary_enabled = ProjectSettings::get_global(cx)
5549 .git
5550 .show_inline_commit_summary();
5551
5552 let text = match blame_entry.summary.as_ref() {
5553 Some(summary) if summary_enabled => {
5554 format!("{}, {} - {}", author, relative_timestamp, summary)
5555 }
5556 _ => format!("{}, {}", author, relative_timestamp),
5557 };
5558
5559 let details = blame.read(cx).details_for_entry(&blame_entry);
5560
5561 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5562
5563 h_flex()
5564 .id("inline-blame")
5565 .w_full()
5566 .font_family(style.text.font().family)
5567 .text_color(cx.theme().status().hint)
5568 .line_height(style.text.line_height)
5569 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5570 .child(text)
5571 .gap_2()
5572 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5573 .into_any()
5574}
5575
5576fn render_blame_entry(
5577 ix: usize,
5578 blame: &gpui::Entity<GitBlame>,
5579 blame_entry: BlameEntry,
5580 style: &EditorStyle,
5581 last_used_color: &mut Option<(PlayerColor, Oid)>,
5582 editor: Entity<Editor>,
5583 cx: &mut App,
5584) -> AnyElement {
5585 let mut sha_color = cx
5586 .theme()
5587 .players()
5588 .color_for_participant(blame_entry.sha.into());
5589 // If the last color we used is the same as the one we get for this line, but
5590 // the commit SHAs are different, then we try again to get a different color.
5591 match *last_used_color {
5592 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5593 let index: u32 = blame_entry.sha.into();
5594 sha_color = cx.theme().players().color_for_participant(index + 1);
5595 }
5596 _ => {}
5597 };
5598 last_used_color.replace((sha_color, blame_entry.sha));
5599
5600 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5601
5602 let short_commit_id = blame_entry.sha.display_short();
5603
5604 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5605 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5606
5607 let details = blame.read(cx).details_for_entry(&blame_entry);
5608
5609 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5610
5611 let tooltip =
5612 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5613
5614 h_flex()
5615 .w_full()
5616 .justify_between()
5617 .font_family(style.text.font().family)
5618 .line_height(style.text.line_height)
5619 .id(("blame", ix))
5620 .text_color(cx.theme().status().hint)
5621 .pr_2()
5622 .gap_2()
5623 .child(
5624 h_flex()
5625 .items_center()
5626 .gap_2()
5627 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5628 .child(name),
5629 )
5630 .child(relative_timestamp)
5631 .on_mouse_down(MouseButton::Right, {
5632 let blame_entry = blame_entry.clone();
5633 let details = details.clone();
5634 move |event, window, cx| {
5635 deploy_blame_entry_context_menu(
5636 &blame_entry,
5637 details.as_ref(),
5638 editor.clone(),
5639 event.position,
5640 window,
5641 cx,
5642 );
5643 }
5644 })
5645 .hover(|style| style.bg(cx.theme().colors().element_hover))
5646 .when_some(
5647 details.and_then(|details| details.permalink),
5648 |this, url| {
5649 let url = url.clone();
5650 this.cursor_pointer().on_click(move |_, _, cx| {
5651 cx.stop_propagation();
5652 cx.open_url(url.as_str())
5653 })
5654 },
5655 )
5656 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5657 .into_any()
5658}
5659
5660fn deploy_blame_entry_context_menu(
5661 blame_entry: &BlameEntry,
5662 details: Option<&CommitDetails>,
5663 editor: Entity<Editor>,
5664 position: gpui::Point<Pixels>,
5665 window: &mut Window,
5666 cx: &mut App,
5667) {
5668 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5669 let sha = format!("{}", blame_entry.sha);
5670 menu.on_blur_subscription(Subscription::new(|| {}))
5671 .entry("Copy commit SHA", None, move |_, cx| {
5672 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5673 })
5674 .when_some(
5675 details.and_then(|details| details.permalink.clone()),
5676 |this, url| {
5677 this.entry("Open permalink", None, move |_, cx| {
5678 cx.open_url(url.as_str())
5679 })
5680 },
5681 )
5682 });
5683
5684 editor.update(cx, move |editor, cx| {
5685 editor.mouse_context_menu = Some(MouseContextMenu::new(
5686 MenuPosition::PinnedToScreen(position),
5687 context_menu,
5688 window,
5689 cx,
5690 ));
5691 cx.notify();
5692 });
5693}
5694
5695#[derive(Debug)]
5696pub(crate) struct LineWithInvisibles {
5697 fragments: SmallVec<[LineFragment; 1]>,
5698 invisibles: Vec<Invisible>,
5699 len: usize,
5700 width: Pixels,
5701 font_size: Pixels,
5702}
5703
5704#[allow(clippy::large_enum_variant)]
5705enum LineFragment {
5706 Text(ShapedLine),
5707 Element {
5708 element: Option<AnyElement>,
5709 size: Size<Pixels>,
5710 len: usize,
5711 },
5712}
5713
5714impl fmt::Debug for LineFragment {
5715 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5716 match self {
5717 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5718 LineFragment::Element { size, len, .. } => f
5719 .debug_struct("Element")
5720 .field("size", size)
5721 .field("len", len)
5722 .finish(),
5723 }
5724 }
5725}
5726
5727impl LineWithInvisibles {
5728 #[allow(clippy::too_many_arguments)]
5729 fn from_chunks<'a>(
5730 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5731 editor_style: &EditorStyle,
5732 max_line_len: usize,
5733 max_line_count: usize,
5734 editor_mode: EditorMode,
5735 text_width: Pixels,
5736 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5737 window: &mut Window,
5738 cx: &mut App,
5739 ) -> Vec<Self> {
5740 let text_style = &editor_style.text;
5741 let mut layouts = Vec::with_capacity(max_line_count);
5742 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5743 let mut line = String::new();
5744 let mut invisibles = Vec::new();
5745 let mut width = Pixels::ZERO;
5746 let mut len = 0;
5747 let mut styles = Vec::new();
5748 let mut non_whitespace_added = false;
5749 let mut row = 0;
5750 let mut line_exceeded_max_len = false;
5751 let font_size = text_style.font_size.to_pixels(window.rem_size());
5752
5753 let ellipsis = SharedString::from("⋯");
5754
5755 for highlighted_chunk in chunks.chain([HighlightedChunk {
5756 text: "\n",
5757 style: None,
5758 is_tab: false,
5759 replacement: None,
5760 }]) {
5761 if let Some(replacement) = highlighted_chunk.replacement {
5762 if !line.is_empty() {
5763 let shaped_line = window
5764 .text_system()
5765 .shape_line(line.clone().into(), font_size, &styles)
5766 .unwrap();
5767 width += shaped_line.width;
5768 len += shaped_line.len;
5769 fragments.push(LineFragment::Text(shaped_line));
5770 line.clear();
5771 styles.clear();
5772 }
5773
5774 match replacement {
5775 ChunkReplacement::Renderer(renderer) => {
5776 let available_width = if renderer.constrain_width {
5777 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5778 ellipsis.clone()
5779 } else {
5780 SharedString::from(Arc::from(highlighted_chunk.text))
5781 };
5782 let shaped_line = window
5783 .text_system()
5784 .shape_line(
5785 chunk,
5786 font_size,
5787 &[text_style.to_run(highlighted_chunk.text.len())],
5788 )
5789 .unwrap();
5790 AvailableSpace::Definite(shaped_line.width)
5791 } else {
5792 AvailableSpace::MinContent
5793 };
5794
5795 let mut element = (renderer.render)(&mut ChunkRendererContext {
5796 context: cx,
5797 window,
5798 max_width: text_width,
5799 });
5800 let line_height = text_style.line_height_in_pixels(window.rem_size());
5801 let size = element.layout_as_root(
5802 size(available_width, AvailableSpace::Definite(line_height)),
5803 window,
5804 cx,
5805 );
5806
5807 width += size.width;
5808 len += highlighted_chunk.text.len();
5809 fragments.push(LineFragment::Element {
5810 element: Some(element),
5811 size,
5812 len: highlighted_chunk.text.len(),
5813 });
5814 }
5815 ChunkReplacement::Str(x) => {
5816 let text_style = if let Some(style) = highlighted_chunk.style {
5817 Cow::Owned(text_style.clone().highlight(style))
5818 } else {
5819 Cow::Borrowed(text_style)
5820 };
5821
5822 let run = TextRun {
5823 len: x.len(),
5824 font: text_style.font(),
5825 color: text_style.color,
5826 background_color: text_style.background_color,
5827 underline: text_style.underline,
5828 strikethrough: text_style.strikethrough,
5829 };
5830 let line_layout = window
5831 .text_system()
5832 .shape_line(x, font_size, &[run])
5833 .unwrap()
5834 .with_len(highlighted_chunk.text.len());
5835
5836 width += line_layout.width;
5837 len += highlighted_chunk.text.len();
5838 fragments.push(LineFragment::Text(line_layout))
5839 }
5840 }
5841 } else {
5842 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5843 if ix > 0 {
5844 let shaped_line = window
5845 .text_system()
5846 .shape_line(line.clone().into(), font_size, &styles)
5847 .unwrap();
5848 width += shaped_line.width;
5849 len += shaped_line.len;
5850 fragments.push(LineFragment::Text(shaped_line));
5851 layouts.push(Self {
5852 width: mem::take(&mut width),
5853 len: mem::take(&mut len),
5854 fragments: mem::take(&mut fragments),
5855 invisibles: std::mem::take(&mut invisibles),
5856 font_size,
5857 });
5858
5859 line.clear();
5860 styles.clear();
5861 row += 1;
5862 line_exceeded_max_len = false;
5863 non_whitespace_added = false;
5864 if row == max_line_count {
5865 return layouts;
5866 }
5867 }
5868
5869 if !line_chunk.is_empty() && !line_exceeded_max_len {
5870 let text_style = if let Some(style) = highlighted_chunk.style {
5871 Cow::Owned(text_style.clone().highlight(style))
5872 } else {
5873 Cow::Borrowed(text_style)
5874 };
5875
5876 if line.len() + line_chunk.len() > max_line_len {
5877 let mut chunk_len = max_line_len - line.len();
5878 while !line_chunk.is_char_boundary(chunk_len) {
5879 chunk_len -= 1;
5880 }
5881 line_chunk = &line_chunk[..chunk_len];
5882 line_exceeded_max_len = true;
5883 }
5884
5885 styles.push(TextRun {
5886 len: line_chunk.len(),
5887 font: text_style.font(),
5888 color: text_style.color,
5889 background_color: text_style.background_color,
5890 underline: text_style.underline,
5891 strikethrough: text_style.strikethrough,
5892 });
5893
5894 if editor_mode == EditorMode::Full {
5895 // Line wrap pads its contents with fake whitespaces,
5896 // avoid printing them
5897 let is_soft_wrapped = is_row_soft_wrapped(row);
5898 if highlighted_chunk.is_tab {
5899 if non_whitespace_added || !is_soft_wrapped {
5900 invisibles.push(Invisible::Tab {
5901 line_start_offset: line.len(),
5902 line_end_offset: line.len() + line_chunk.len(),
5903 });
5904 }
5905 } else {
5906 invisibles.extend(line_chunk.char_indices().filter_map(
5907 |(index, c)| {
5908 let is_whitespace = c.is_whitespace();
5909 non_whitespace_added |= !is_whitespace;
5910 if is_whitespace
5911 && (non_whitespace_added || !is_soft_wrapped)
5912 {
5913 Some(Invisible::Whitespace {
5914 line_offset: line.len() + index,
5915 })
5916 } else {
5917 None
5918 }
5919 },
5920 ))
5921 }
5922 }
5923
5924 line.push_str(line_chunk);
5925 }
5926 }
5927 }
5928 }
5929
5930 layouts
5931 }
5932
5933 #[allow(clippy::too_many_arguments)]
5934 fn prepaint(
5935 &mut self,
5936 line_height: Pixels,
5937 scroll_pixel_position: gpui::Point<Pixels>,
5938 row: DisplayRow,
5939 content_origin: gpui::Point<Pixels>,
5940 line_elements: &mut SmallVec<[AnyElement; 1]>,
5941 window: &mut Window,
5942 cx: &mut App,
5943 ) {
5944 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
5945 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
5946 for fragment in &mut self.fragments {
5947 match fragment {
5948 LineFragment::Text(line) => {
5949 fragment_origin.x += line.width;
5950 }
5951 LineFragment::Element { element, size, .. } => {
5952 let mut element = element
5953 .take()
5954 .expect("you can't prepaint LineWithInvisibles twice");
5955
5956 // Center the element vertically within the line.
5957 let mut element_origin = fragment_origin;
5958 element_origin.y += (line_height - size.height) / 2.;
5959 element.prepaint_at(element_origin, window, cx);
5960 line_elements.push(element);
5961
5962 fragment_origin.x += size.width;
5963 }
5964 }
5965 }
5966 }
5967
5968 #[allow(clippy::too_many_arguments)]
5969 fn draw(
5970 &self,
5971 layout: &EditorLayout,
5972 row: DisplayRow,
5973 content_origin: gpui::Point<Pixels>,
5974 whitespace_setting: ShowWhitespaceSetting,
5975 selection_ranges: &[Range<DisplayPoint>],
5976 window: &mut Window,
5977 cx: &mut App,
5978 ) {
5979 let line_height = layout.position_map.line_height;
5980 let line_y = line_height
5981 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
5982
5983 let mut fragment_origin =
5984 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
5985
5986 for fragment in &self.fragments {
5987 match fragment {
5988 LineFragment::Text(line) => {
5989 line.paint(fragment_origin, line_height, window, cx)
5990 .log_err();
5991 fragment_origin.x += line.width;
5992 }
5993 LineFragment::Element { size, .. } => {
5994 fragment_origin.x += size.width;
5995 }
5996 }
5997 }
5998
5999 self.draw_invisibles(
6000 selection_ranges,
6001 layout,
6002 content_origin,
6003 line_y,
6004 row,
6005 line_height,
6006 whitespace_setting,
6007 window,
6008 cx,
6009 );
6010 }
6011
6012 #[allow(clippy::too_many_arguments)]
6013 fn draw_invisibles(
6014 &self,
6015 selection_ranges: &[Range<DisplayPoint>],
6016 layout: &EditorLayout,
6017 content_origin: gpui::Point<Pixels>,
6018 line_y: Pixels,
6019 row: DisplayRow,
6020 line_height: Pixels,
6021 whitespace_setting: ShowWhitespaceSetting,
6022 window: &mut Window,
6023 cx: &mut App,
6024 ) {
6025 let extract_whitespace_info = |invisible: &Invisible| {
6026 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6027 Invisible::Tab {
6028 line_start_offset,
6029 line_end_offset,
6030 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6031 Invisible::Whitespace { line_offset } => {
6032 (*line_offset, line_offset + 1, &layout.space_invisible)
6033 }
6034 };
6035
6036 let x_offset = self.x_for_index(token_offset);
6037 let invisible_offset =
6038 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6039 let origin = content_origin
6040 + gpui::point(
6041 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6042 line_y,
6043 );
6044
6045 (
6046 [token_offset, token_end_offset],
6047 Box::new(move |window: &mut Window, cx: &mut App| {
6048 invisible_symbol
6049 .paint(origin, line_height, window, cx)
6050 .log_err();
6051 }),
6052 )
6053 };
6054
6055 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6056 match whitespace_setting {
6057 ShowWhitespaceSetting::None => (),
6058 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6059 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6060 let invisible_point = DisplayPoint::new(row, start as u32);
6061 if !selection_ranges
6062 .iter()
6063 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6064 {
6065 return;
6066 }
6067
6068 paint(window, cx);
6069 }),
6070
6071 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6072 // - It is a tab
6073 // - It is adjacent to an edge (start or end)
6074 // - It is adjacent to a whitespace (left or right)
6075 ShowWhitespaceSetting::Boundary => {
6076 // 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
6077 // the above cases.
6078 // Note: We zip in the original `invisibles` to check for tab equality
6079 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6080 for (([start, end], paint), invisible) in
6081 invisible_iter.zip_eq(self.invisibles.iter())
6082 {
6083 let should_render = match (&last_seen, invisible) {
6084 (_, Invisible::Tab { .. }) => true,
6085 (Some((_, last_end, _)), _) => *last_end == start,
6086 _ => false,
6087 };
6088
6089 if should_render || start == 0 || end == self.len {
6090 paint(window, cx);
6091
6092 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6093 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6094 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6095 // Note that we need to make sure that the last one is actually adjacent
6096 if !should_render_last && last_end == start {
6097 paint_last(window, cx);
6098 }
6099 }
6100 }
6101
6102 // Manually render anything within a selection
6103 let invisible_point = DisplayPoint::new(row, start as u32);
6104 if selection_ranges.iter().any(|region| {
6105 region.start <= invisible_point && invisible_point < region.end
6106 }) {
6107 paint(window, cx);
6108 }
6109
6110 last_seen = Some((should_render, end, paint));
6111 }
6112 }
6113 }
6114 }
6115
6116 pub fn x_for_index(&self, index: usize) -> Pixels {
6117 let mut fragment_start_x = Pixels::ZERO;
6118 let mut fragment_start_index = 0;
6119
6120 for fragment in &self.fragments {
6121 match fragment {
6122 LineFragment::Text(shaped_line) => {
6123 let fragment_end_index = fragment_start_index + shaped_line.len;
6124 if index < fragment_end_index {
6125 return fragment_start_x
6126 + shaped_line.x_for_index(index - fragment_start_index);
6127 }
6128 fragment_start_x += shaped_line.width;
6129 fragment_start_index = fragment_end_index;
6130 }
6131 LineFragment::Element { len, size, .. } => {
6132 let fragment_end_index = fragment_start_index + len;
6133 if index < fragment_end_index {
6134 return fragment_start_x;
6135 }
6136 fragment_start_x += size.width;
6137 fragment_start_index = fragment_end_index;
6138 }
6139 }
6140 }
6141
6142 fragment_start_x
6143 }
6144
6145 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6146 let mut fragment_start_x = Pixels::ZERO;
6147 let mut fragment_start_index = 0;
6148
6149 for fragment in &self.fragments {
6150 match fragment {
6151 LineFragment::Text(shaped_line) => {
6152 let fragment_end_x = fragment_start_x + shaped_line.width;
6153 if x < fragment_end_x {
6154 return Some(
6155 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6156 );
6157 }
6158 fragment_start_x = fragment_end_x;
6159 fragment_start_index += shaped_line.len;
6160 }
6161 LineFragment::Element { len, size, .. } => {
6162 let fragment_end_x = fragment_start_x + size.width;
6163 if x < fragment_end_x {
6164 return Some(fragment_start_index);
6165 }
6166 fragment_start_index += len;
6167 fragment_start_x = fragment_end_x;
6168 }
6169 }
6170 }
6171
6172 None
6173 }
6174
6175 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6176 let mut fragment_start_index = 0;
6177
6178 for fragment in &self.fragments {
6179 match fragment {
6180 LineFragment::Text(shaped_line) => {
6181 let fragment_end_index = fragment_start_index + shaped_line.len;
6182 if index < fragment_end_index {
6183 return shaped_line.font_id_for_index(index - fragment_start_index);
6184 }
6185 fragment_start_index = fragment_end_index;
6186 }
6187 LineFragment::Element { len, .. } => {
6188 let fragment_end_index = fragment_start_index + len;
6189 if index < fragment_end_index {
6190 return None;
6191 }
6192 fragment_start_index = fragment_end_index;
6193 }
6194 }
6195 }
6196
6197 None
6198 }
6199}
6200
6201#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6202enum Invisible {
6203 /// A tab character
6204 ///
6205 /// A tab character is internally represented by spaces (configured by the user's tab width)
6206 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6207 /// adjacency checks.
6208 Tab {
6209 line_start_offset: usize,
6210 line_end_offset: usize,
6211 },
6212 Whitespace {
6213 line_offset: usize,
6214 },
6215}
6216
6217impl EditorElement {
6218 /// Returns the rem size to use when rendering the [`EditorElement`].
6219 ///
6220 /// This allows UI elements to scale based on the `buffer_font_size`.
6221 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6222 match self.editor.read(cx).mode {
6223 EditorMode::Full => {
6224 let buffer_font_size = self.style.text.font_size;
6225 match buffer_font_size {
6226 AbsoluteLength::Pixels(pixels) => {
6227 let rem_size_scale = {
6228 // Our default UI font size is 14px on a 16px base scale.
6229 // This means the default UI font size is 0.875rems.
6230 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6231
6232 // We then determine the delta between a single rem and the default font
6233 // size scale.
6234 let default_font_size_delta = 1. - default_font_size_scale;
6235
6236 // Finally, we add this delta to 1rem to get the scale factor that
6237 // should be used to scale up the UI.
6238 1. + default_font_size_delta
6239 };
6240
6241 Some(pixels * rem_size_scale)
6242 }
6243 AbsoluteLength::Rems(rems) => {
6244 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6245 }
6246 }
6247 }
6248 // We currently use single-line and auto-height editors in UI contexts,
6249 // so we don't want to scale everything with the buffer font size, as it
6250 // ends up looking off.
6251 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6252 }
6253 }
6254}
6255
6256impl Element for EditorElement {
6257 type RequestLayoutState = ();
6258 type PrepaintState = EditorLayout;
6259
6260 fn id(&self) -> Option<ElementId> {
6261 None
6262 }
6263
6264 fn request_layout(
6265 &mut self,
6266 _: Option<&GlobalElementId>,
6267 window: &mut Window,
6268 cx: &mut App,
6269 ) -> (gpui::LayoutId, ()) {
6270 let rem_size = self.rem_size(cx);
6271 window.with_rem_size(rem_size, |window| {
6272 self.editor.update(cx, |editor, cx| {
6273 editor.set_style(self.style.clone(), window, cx);
6274
6275 let layout_id = match editor.mode {
6276 EditorMode::SingleLine { auto_width } => {
6277 let rem_size = window.rem_size();
6278
6279 let height = self.style.text.line_height_in_pixels(rem_size);
6280 if auto_width {
6281 let editor_handle = cx.entity().clone();
6282 let style = self.style.clone();
6283 window.request_measured_layout(
6284 Style::default(),
6285 move |_, _, window, cx| {
6286 let editor_snapshot = editor_handle
6287 .update(cx, |editor, cx| editor.snapshot(window, cx));
6288 let line = Self::layout_lines(
6289 DisplayRow(0)..DisplayRow(1),
6290 &editor_snapshot,
6291 &style,
6292 px(f32::MAX),
6293 |_| false, // Single lines never soft wrap
6294 window,
6295 cx,
6296 )
6297 .pop()
6298 .unwrap();
6299
6300 let font_id =
6301 window.text_system().resolve_font(&style.text.font());
6302 let font_size =
6303 style.text.font_size.to_pixels(window.rem_size());
6304 let em_width = window
6305 .text_system()
6306 .typographic_bounds(font_id, font_size, 'm')
6307 .unwrap()
6308 .size
6309 .width;
6310
6311 size(line.width + em_width, height)
6312 },
6313 )
6314 } else {
6315 let mut style = Style::default();
6316 style.size.height = height.into();
6317 style.size.width = relative(1.).into();
6318 window.request_layout(style, None, cx)
6319 }
6320 }
6321 EditorMode::AutoHeight { max_lines } => {
6322 let editor_handle = cx.entity().clone();
6323 let max_line_number_width =
6324 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6325 window.request_measured_layout(
6326 Style::default(),
6327 move |known_dimensions, available_space, window, cx| {
6328 editor_handle
6329 .update(cx, |editor, cx| {
6330 compute_auto_height_layout(
6331 editor,
6332 max_lines,
6333 max_line_number_width,
6334 known_dimensions,
6335 available_space.width,
6336 window,
6337 cx,
6338 )
6339 })
6340 .unwrap_or_default()
6341 },
6342 )
6343 }
6344 EditorMode::Full => {
6345 let mut style = Style::default();
6346 style.size.width = relative(1.).into();
6347 style.size.height = relative(1.).into();
6348 window.request_layout(style, None, cx)
6349 }
6350 };
6351
6352 (layout_id, ())
6353 })
6354 })
6355 }
6356
6357 fn prepaint(
6358 &mut self,
6359 _: Option<&GlobalElementId>,
6360 bounds: Bounds<Pixels>,
6361 _: &mut Self::RequestLayoutState,
6362 window: &mut Window,
6363 cx: &mut App,
6364 ) -> Self::PrepaintState {
6365 let text_style = TextStyleRefinement {
6366 font_size: Some(self.style.text.font_size),
6367 line_height: Some(self.style.text.line_height),
6368 ..Default::default()
6369 };
6370 let focus_handle = self.editor.focus_handle(cx);
6371 window.set_view_id(self.editor.entity_id());
6372 window.set_focus_handle(&focus_handle, cx);
6373
6374 let rem_size = self.rem_size(cx);
6375 window.with_rem_size(rem_size, |window| {
6376 window.with_text_style(Some(text_style), |window| {
6377 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6378 let mut snapshot = self
6379 .editor
6380 .update(cx, |editor, cx| editor.snapshot(window, cx));
6381 let style = self.style.clone();
6382
6383 let font_id = window.text_system().resolve_font(&style.text.font());
6384 let font_size = style.text.font_size.to_pixels(window.rem_size());
6385 let line_height = style.text.line_height_in_pixels(window.rem_size());
6386 let em_width = window
6387 .text_system()
6388 .typographic_bounds(font_id, font_size, 'm')
6389 .unwrap()
6390 .size
6391 .width;
6392 let em_advance = window
6393 .text_system()
6394 .advance(font_id, font_size, 'm')
6395 .unwrap()
6396 .width;
6397
6398 let letter_size = size(em_width, line_height);
6399
6400 let gutter_dimensions = snapshot.gutter_dimensions(
6401 font_id,
6402 font_size,
6403 em_width,
6404 em_advance,
6405 self.max_line_number_width(&snapshot, window, cx),
6406 cx,
6407 );
6408 let text_width = bounds.size.width - gutter_dimensions.width;
6409
6410 let editor_width = text_width - gutter_dimensions.margin - em_width;
6411
6412 snapshot = self.editor.update(cx, |editor, cx| {
6413 editor.last_bounds = Some(bounds);
6414 editor.gutter_dimensions = gutter_dimensions;
6415 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6416
6417 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6418 snapshot
6419 } else {
6420 let wrap_width = match editor.soft_wrap_mode(cx) {
6421 SoftWrap::GitDiff => None,
6422 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6423 SoftWrap::EditorWidth => Some(editor_width),
6424 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6425 SoftWrap::Bounded(column) => {
6426 Some(editor_width.min(column as f32 * em_advance))
6427 }
6428 };
6429
6430 if editor.set_wrap_width(wrap_width, cx) {
6431 editor.snapshot(window, cx)
6432 } else {
6433 snapshot
6434 }
6435 }
6436 });
6437
6438 let wrap_guides = self
6439 .editor
6440 .read(cx)
6441 .wrap_guides(cx)
6442 .iter()
6443 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6444 .collect::<SmallVec<[_; 2]>>();
6445
6446 let hitbox = window.insert_hitbox(bounds, false);
6447 let gutter_hitbox =
6448 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6449 let text_hitbox = window.insert_hitbox(
6450 Bounds {
6451 origin: gutter_hitbox.top_right(),
6452 size: size(text_width, bounds.size.height),
6453 },
6454 false,
6455 );
6456 // Offset the content_bounds from the text_bounds by the gutter margin (which
6457 // is roughly half a character wide) to make hit testing work more like how we want.
6458 let content_origin =
6459 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6460
6461 let scrollbar_bounds =
6462 Bounds::from_corners(content_origin, bounds.bottom_right());
6463
6464 let height_in_lines = scrollbar_bounds.size.height / line_height;
6465
6466 // NOTE: The max row number in the current file, minus one
6467 let max_row = snapshot.max_point().row().as_f32();
6468
6469 // NOTE: The max scroll position for the top of the window
6470 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6471 (max_row - height_in_lines + 1.).max(0.)
6472 } else {
6473 let settings = EditorSettings::get_global(cx);
6474 match settings.scroll_beyond_last_line {
6475 ScrollBeyondLastLine::OnePage => max_row,
6476 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6477 ScrollBeyondLastLine::VerticalScrollMargin => {
6478 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6479 .max(0.)
6480 }
6481 }
6482 };
6483
6484 // TODO: Autoscrolling for both axes
6485 let mut autoscroll_request = None;
6486 let mut autoscroll_containing_element = false;
6487 let mut autoscroll_horizontally = false;
6488 self.editor.update(cx, |editor, cx| {
6489 autoscroll_request = editor.autoscroll_request();
6490 autoscroll_containing_element =
6491 autoscroll_request.is_some() || editor.has_pending_selection();
6492 // TODO: Is this horizontal or vertical?!
6493 autoscroll_horizontally = editor.autoscroll_vertically(
6494 bounds,
6495 line_height,
6496 max_scroll_top,
6497 window,
6498 cx,
6499 );
6500 snapshot = editor.snapshot(window, cx);
6501 });
6502
6503 let mut scroll_position = snapshot.scroll_position();
6504 // The scroll position is a fractional point, the whole number of which represents
6505 // the top of the window in terms of display rows.
6506 let start_row = DisplayRow(scroll_position.y as u32);
6507 let max_row = snapshot.max_point().row();
6508 let end_row = cmp::min(
6509 (scroll_position.y + height_in_lines).ceil() as u32,
6510 max_row.next_row().0,
6511 );
6512 let end_row = DisplayRow(end_row);
6513
6514 let row_infos = snapshot
6515 .row_infos(start_row)
6516 .take((start_row..end_row).len())
6517 .collect::<Vec<RowInfo>>();
6518 let is_row_soft_wrapped = |row: usize| {
6519 row_infos
6520 .get(row)
6521 .map_or(true, |info| info.buffer_row.is_none())
6522 };
6523
6524 let start_anchor = if start_row == Default::default() {
6525 Anchor::min()
6526 } else {
6527 snapshot.buffer_snapshot.anchor_before(
6528 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6529 )
6530 };
6531 let end_anchor = if end_row > max_row {
6532 Anchor::max()
6533 } else {
6534 snapshot.buffer_snapshot.anchor_before(
6535 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6536 )
6537 };
6538
6539 let mut highlighted_rows = self
6540 .editor
6541 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6542
6543 for (ix, row_info) in row_infos.iter().enumerate() {
6544 let color = match row_info.diff_status {
6545 Some(DiffHunkStatus::Added) => style.status.created_background,
6546 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6547 _ => continue,
6548 };
6549 highlighted_rows
6550 .entry(start_row + DisplayRow(ix as u32))
6551 .or_insert(color);
6552 }
6553
6554 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6555 start_anchor..end_anchor,
6556 &snapshot.display_snapshot,
6557 cx.theme().colors(),
6558 );
6559 let highlighted_gutter_ranges =
6560 self.editor.read(cx).gutter_highlights_in_range(
6561 start_anchor..end_anchor,
6562 &snapshot.display_snapshot,
6563 cx,
6564 );
6565
6566 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6567 start_anchor..end_anchor,
6568 &snapshot.display_snapshot,
6569 cx,
6570 );
6571
6572 let (local_selections, selected_buffer_ids): (
6573 Vec<Selection<Point>>,
6574 Vec<BufferId>,
6575 ) = self.editor.update(cx, |editor, cx| {
6576 let all_selections = editor.selections.all::<Point>(cx);
6577 let selected_buffer_ids = if editor.is_singleton(cx) {
6578 Vec::new()
6579 } else {
6580 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6581
6582 for selection in all_selections {
6583 for buffer_id in snapshot
6584 .buffer_snapshot
6585 .buffer_ids_for_range(selection.range())
6586 {
6587 if selected_buffer_ids.last() != Some(&buffer_id) {
6588 selected_buffer_ids.push(buffer_id);
6589 }
6590 }
6591 }
6592
6593 selected_buffer_ids
6594 };
6595
6596 let mut selections = editor
6597 .selections
6598 .disjoint_in_range(start_anchor..end_anchor, cx);
6599 selections.extend(editor.selections.pending(cx));
6600
6601 (selections, selected_buffer_ids)
6602 });
6603
6604 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6605 start_anchor,
6606 end_anchor,
6607 &local_selections,
6608 &snapshot,
6609 start_row,
6610 end_row,
6611 window,
6612 cx,
6613 );
6614
6615 let line_numbers = self.layout_line_numbers(
6616 Some(&gutter_hitbox),
6617 gutter_dimensions,
6618 line_height,
6619 scroll_position,
6620 start_row..end_row,
6621 &row_infos,
6622 newest_selection_head,
6623 &snapshot,
6624 window,
6625 cx,
6626 );
6627
6628 let mut crease_toggles =
6629 window.with_element_namespace("crease_toggles", |window| {
6630 self.layout_crease_toggles(
6631 start_row..end_row,
6632 &row_infos,
6633 &active_rows,
6634 &snapshot,
6635 window,
6636 cx,
6637 )
6638 });
6639 let crease_trailers =
6640 window.with_element_namespace("crease_trailers", |window| {
6641 self.layout_crease_trailers(
6642 row_infos.iter().copied(),
6643 &snapshot,
6644 window,
6645 cx,
6646 )
6647 });
6648
6649 let display_hunks = self.layout_gutter_diff_hunks(
6650 line_height,
6651 &gutter_hitbox,
6652 start_row..end_row,
6653 &snapshot,
6654 window,
6655 cx,
6656 );
6657
6658 let mut line_layouts = Self::layout_lines(
6659 start_row..end_row,
6660 &snapshot,
6661 &self.style,
6662 editor_width,
6663 is_row_soft_wrapped,
6664 window,
6665 cx,
6666 );
6667
6668 let longest_line_blame_width = self
6669 .editor
6670 .update(cx, |editor, cx| {
6671 if !editor.show_git_blame_inline {
6672 return None;
6673 }
6674 let blame = editor.blame.as_ref()?;
6675 let blame_entry = blame
6676 .update(cx, |blame, cx| {
6677 let row_infos =
6678 snapshot.row_infos(snapshot.longest_row()).next()?;
6679 blame.blame_for_rows(&[row_infos], cx).next()
6680 })
6681 .flatten()?;
6682 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
6683 let mut element = render_inline_blame_entry(
6684 blame,
6685 blame_entry,
6686 &style,
6687 workspace,
6688 cx,
6689 );
6690 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6691 Some(
6692 element
6693 .layout_as_root(AvailableSpace::min_size(), window, cx)
6694 .width
6695 + inline_blame_padding,
6696 )
6697 })
6698 .unwrap_or(Pixels::ZERO);
6699
6700 let longest_line_width = layout_line(
6701 snapshot.longest_row(),
6702 &snapshot,
6703 &style,
6704 editor_width,
6705 is_row_soft_wrapped,
6706 window,
6707 cx,
6708 )
6709 .width;
6710
6711 let scrollbar_range_data = ScrollbarRangeData::new(
6712 scrollbar_bounds,
6713 letter_size,
6714 &snapshot,
6715 longest_line_width,
6716 longest_line_blame_width,
6717 &style,
6718 cx,
6719 );
6720
6721 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6722 let mut scroll_width = scroll_range_bounds.size.width;
6723
6724 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6725 snapshot.sticky_header_excerpt(start_row)
6726 } else {
6727 None
6728 };
6729 let sticky_header_excerpt_id =
6730 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6731
6732 let blocks = window.with_element_namespace("blocks", |window| {
6733 self.render_blocks(
6734 start_row..end_row,
6735 &snapshot,
6736 &hitbox,
6737 &text_hitbox,
6738 editor_width,
6739 &mut scroll_width,
6740 &gutter_dimensions,
6741 em_width,
6742 gutter_dimensions.full_width(),
6743 line_height,
6744 &line_layouts,
6745 &local_selections,
6746 &selected_buffer_ids,
6747 is_row_soft_wrapped,
6748 sticky_header_excerpt_id,
6749 window,
6750 cx,
6751 )
6752 });
6753 let mut blocks = match blocks {
6754 Ok(blocks) => blocks,
6755 Err(resized_blocks) => {
6756 self.editor.update(cx, |editor, cx| {
6757 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6758 });
6759 return self.prepaint(None, bounds, &mut (), window, cx);
6760 }
6761 };
6762
6763 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6764 window.with_element_namespace("blocks", |window| {
6765 self.layout_sticky_buffer_header(
6766 sticky_header_excerpt,
6767 scroll_position.y,
6768 line_height,
6769 &snapshot,
6770 &hitbox,
6771 &selected_buffer_ids,
6772 window,
6773 cx,
6774 )
6775 })
6776 });
6777
6778 let start_buffer_row =
6779 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6780 let end_buffer_row =
6781 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6782
6783 let scroll_max = point(
6784 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6785 max_row.as_f32(),
6786 );
6787
6788 self.editor.update(cx, |editor, cx| {
6789 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6790
6791 let autoscrolled = if autoscroll_horizontally {
6792 editor.autoscroll_horizontally(
6793 start_row,
6794 editor_width - (letter_size.width / 2.0),
6795 scroll_width,
6796 em_width,
6797 &line_layouts,
6798 cx,
6799 )
6800 } else {
6801 false
6802 };
6803
6804 if clamped || autoscrolled {
6805 snapshot = editor.snapshot(window, cx);
6806 scroll_position = snapshot.scroll_position();
6807 }
6808 });
6809
6810 let scroll_pixel_position = point(
6811 scroll_position.x * em_width,
6812 scroll_position.y * line_height,
6813 );
6814
6815 let indent_guides = self.layout_indent_guides(
6816 content_origin,
6817 text_hitbox.origin,
6818 start_buffer_row..end_buffer_row,
6819 scroll_pixel_position,
6820 line_height,
6821 &snapshot,
6822 window,
6823 cx,
6824 );
6825
6826 let crease_trailers =
6827 window.with_element_namespace("crease_trailers", |window| {
6828 self.prepaint_crease_trailers(
6829 crease_trailers,
6830 &line_layouts,
6831 line_height,
6832 content_origin,
6833 scroll_pixel_position,
6834 em_width,
6835 window,
6836 cx,
6837 )
6838 });
6839
6840 let mut inline_blame = None;
6841 if let Some(newest_selection_head) = newest_selection_head {
6842 let display_row = newest_selection_head.row();
6843 if (start_row..end_row).contains(&display_row) {
6844 let line_ix = display_row.minus(start_row) as usize;
6845 let row_info = &row_infos[line_ix];
6846 let line_layout = &line_layouts[line_ix];
6847 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
6848 inline_blame = self.layout_inline_blame(
6849 display_row,
6850 row_info,
6851 line_layout,
6852 crease_trailer_layout,
6853 em_width,
6854 content_origin,
6855 scroll_pixel_position,
6856 line_height,
6857 window,
6858 cx,
6859 );
6860 }
6861 }
6862
6863 let blamed_display_rows = self.layout_blame_entries(
6864 &row_infos,
6865 em_width,
6866 scroll_position,
6867 line_height,
6868 &gutter_hitbox,
6869 gutter_dimensions.git_blame_entries_width,
6870 window,
6871 cx,
6872 );
6873
6874 let scroll_max = point(
6875 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6876 max_scroll_top,
6877 );
6878
6879 self.editor.update(cx, |editor, cx| {
6880 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6881
6882 let autoscrolled = if autoscroll_horizontally {
6883 editor.autoscroll_horizontally(
6884 start_row,
6885 editor_width - (letter_size.width / 2.0),
6886 scroll_width,
6887 em_width,
6888 &line_layouts,
6889 cx,
6890 )
6891 } else {
6892 false
6893 };
6894
6895 if clamped || autoscrolled {
6896 snapshot = editor.snapshot(window, cx);
6897 scroll_position = snapshot.scroll_position();
6898 }
6899 });
6900
6901 let line_elements = self.prepaint_lines(
6902 start_row,
6903 &mut line_layouts,
6904 line_height,
6905 scroll_pixel_position,
6906 content_origin,
6907 window,
6908 cx,
6909 );
6910
6911 let mut block_start_rows = HashSet::default();
6912
6913 window.with_element_namespace("blocks", |window| {
6914 self.layout_blocks(
6915 &mut blocks,
6916 &mut block_start_rows,
6917 &hitbox,
6918 line_height,
6919 scroll_pixel_position,
6920 window,
6921 cx,
6922 );
6923 });
6924
6925 let cursors = self.collect_cursors(&snapshot, cx);
6926 let visible_row_range = start_row..end_row;
6927 let non_visible_cursors = cursors
6928 .iter()
6929 .any(move |c| !visible_row_range.contains(&c.0.row()));
6930
6931 let visible_cursors = self.layout_visible_cursors(
6932 &snapshot,
6933 &selections,
6934 &block_start_rows,
6935 start_row..end_row,
6936 &line_layouts,
6937 &text_hitbox,
6938 content_origin,
6939 scroll_position,
6940 scroll_pixel_position,
6941 line_height,
6942 em_width,
6943 em_advance,
6944 autoscroll_containing_element,
6945 window,
6946 cx,
6947 );
6948
6949 let scrollbars_layout = self.layout_scrollbars(
6950 &snapshot,
6951 scrollbar_range_data,
6952 scroll_position,
6953 non_visible_cursors,
6954 window,
6955 cx,
6956 );
6957
6958 let gutter_settings = EditorSettings::get_global(cx).gutter;
6959
6960 let rows_with_hunk_bounds = display_hunks
6961 .iter()
6962 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
6963 .fold(
6964 HashMap::default(),
6965 |mut rows_with_hunk_bounds, (hunk, bounds)| {
6966 match hunk {
6967 DisplayDiffHunk::Folded { display_row } => {
6968 rows_with_hunk_bounds.insert(*display_row, bounds);
6969 }
6970 DisplayDiffHunk::Unfolded {
6971 display_row_range, ..
6972 } => {
6973 for display_row in display_row_range.iter_rows() {
6974 rows_with_hunk_bounds.insert(display_row, bounds);
6975 }
6976 }
6977 }
6978 rows_with_hunk_bounds
6979 },
6980 );
6981 let mut code_actions_indicator = None;
6982 if let Some(newest_selection_head) = newest_selection_head {
6983 if (start_row..end_row).contains(&newest_selection_head.row()) {
6984 self.layout_context_menu(
6985 line_height,
6986 &text_hitbox,
6987 content_origin,
6988 start_row,
6989 scroll_pixel_position,
6990 &line_layouts,
6991 newest_selection_head,
6992 gutter_dimensions.width - gutter_dimensions.left_padding,
6993 window,
6994 cx,
6995 );
6996
6997 let show_code_actions = snapshot
6998 .show_code_actions
6999 .unwrap_or(gutter_settings.code_actions);
7000 if show_code_actions {
7001 let newest_selection_point =
7002 newest_selection_head.to_point(&snapshot.display_snapshot);
7003 if !snapshot
7004 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7005 {
7006 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7007 MultiBufferRow(newest_selection_point.row),
7008 );
7009 if let Some((buffer, range)) = buffer {
7010 let buffer_id = buffer.remote_id();
7011 let row = range.start.row;
7012 let has_test_indicator = self
7013 .editor
7014 .read(cx)
7015 .tasks
7016 .contains_key(&(buffer_id, row));
7017
7018 if !has_test_indicator {
7019 code_actions_indicator = self
7020 .layout_code_actions_indicator(
7021 line_height,
7022 newest_selection_head,
7023 scroll_pixel_position,
7024 &gutter_dimensions,
7025 &gutter_hitbox,
7026 &rows_with_hunk_bounds,
7027 window,
7028 cx,
7029 );
7030 }
7031 }
7032 }
7033 }
7034 }
7035 }
7036
7037 let test_indicators = if gutter_settings.runnables {
7038 self.layout_run_indicators(
7039 line_height,
7040 start_row..end_row,
7041 scroll_pixel_position,
7042 &gutter_dimensions,
7043 &gutter_hitbox,
7044 &rows_with_hunk_bounds,
7045 &snapshot,
7046 window,
7047 cx,
7048 )
7049 } else {
7050 Vec::new()
7051 };
7052
7053 self.layout_signature_help(
7054 &hitbox,
7055 content_origin,
7056 scroll_pixel_position,
7057 newest_selection_head,
7058 start_row,
7059 &line_layouts,
7060 line_height,
7061 em_width,
7062 window,
7063 cx,
7064 );
7065
7066 if !cx.has_active_drag() {
7067 self.layout_hover_popovers(
7068 &snapshot,
7069 &hitbox,
7070 &text_hitbox,
7071 start_row..end_row,
7072 content_origin,
7073 scroll_pixel_position,
7074 &line_layouts,
7075 line_height,
7076 em_width,
7077 window,
7078 cx,
7079 );
7080 }
7081
7082 let inline_completion_popover = self.layout_inline_completion_popover(
7083 &text_hitbox.bounds,
7084 &snapshot,
7085 start_row..end_row,
7086 scroll_position.y,
7087 scroll_position.y + height_in_lines,
7088 &line_layouts,
7089 line_height,
7090 scroll_pixel_position,
7091 editor_width,
7092 &style,
7093 window,
7094 cx,
7095 );
7096
7097 let mouse_context_menu = self.layout_mouse_context_menu(
7098 &snapshot,
7099 start_row..end_row,
7100 content_origin,
7101 window,
7102 cx,
7103 );
7104
7105 window.with_element_namespace("crease_toggles", |window| {
7106 self.prepaint_crease_toggles(
7107 &mut crease_toggles,
7108 line_height,
7109 &gutter_dimensions,
7110 gutter_settings,
7111 scroll_pixel_position,
7112 &gutter_hitbox,
7113 window,
7114 cx,
7115 )
7116 });
7117
7118 let invisible_symbol_font_size = font_size / 2.;
7119 let tab_invisible = window
7120 .text_system()
7121 .shape_line(
7122 "→".into(),
7123 invisible_symbol_font_size,
7124 &[TextRun {
7125 len: "→".len(),
7126 font: self.style.text.font(),
7127 color: cx.theme().colors().editor_invisible,
7128 background_color: None,
7129 underline: None,
7130 strikethrough: None,
7131 }],
7132 )
7133 .unwrap();
7134 let space_invisible = window
7135 .text_system()
7136 .shape_line(
7137 "•".into(),
7138 invisible_symbol_font_size,
7139 &[TextRun {
7140 len: "•".len(),
7141 font: self.style.text.font(),
7142 color: cx.theme().colors().editor_invisible,
7143 background_color: None,
7144 underline: None,
7145 strikethrough: None,
7146 }],
7147 )
7148 .unwrap();
7149
7150 let mode = snapshot.mode;
7151
7152 let position_map = Rc::new(PositionMap {
7153 size: bounds.size,
7154 scroll_pixel_position,
7155 scroll_max,
7156 line_layouts,
7157 line_height,
7158 em_width,
7159 em_advance,
7160 snapshot,
7161 });
7162
7163 let hunk_controls = self.layout_diff_hunk_controls(
7164 start_row..end_row,
7165 &row_infos,
7166 &text_hitbox,
7167 &position_map,
7168 newest_selection_head,
7169 line_height,
7170 scroll_pixel_position,
7171 &display_hunks,
7172 self.editor.clone(),
7173 window,
7174 cx,
7175 );
7176
7177 EditorLayout {
7178 mode,
7179 position_map,
7180 visible_display_row_range: start_row..end_row,
7181 wrap_guides,
7182 indent_guides,
7183 hitbox,
7184 text_hitbox,
7185 gutter_hitbox,
7186 display_hunks,
7187 content_origin,
7188 scrollbars_layout,
7189 active_rows,
7190 highlighted_rows,
7191 highlighted_ranges,
7192 highlighted_gutter_ranges,
7193 redacted_ranges,
7194 line_elements,
7195 line_numbers,
7196 blamed_display_rows,
7197 inline_blame,
7198 blocks,
7199 cursors,
7200 visible_cursors,
7201 selections,
7202 inline_completion_popover,
7203 diff_hunk_controls: hunk_controls,
7204 mouse_context_menu,
7205 test_indicators,
7206 code_actions_indicator,
7207 crease_toggles,
7208 crease_trailers,
7209 tab_invisible,
7210 space_invisible,
7211 sticky_buffer_header,
7212 }
7213 })
7214 })
7215 })
7216 }
7217
7218 fn paint(
7219 &mut self,
7220 _: Option<&GlobalElementId>,
7221 bounds: Bounds<gpui::Pixels>,
7222 _: &mut Self::RequestLayoutState,
7223 layout: &mut Self::PrepaintState,
7224 window: &mut Window,
7225 cx: &mut App,
7226 ) {
7227 let focus_handle = self.editor.focus_handle(cx);
7228 let key_context = self
7229 .editor
7230 .update(cx, |editor, cx| editor.key_context(window, cx));
7231
7232 window.set_key_context(key_context);
7233 window.handle_input(
7234 &focus_handle,
7235 ElementInputHandler::new(bounds, self.editor.clone()),
7236 cx,
7237 );
7238 self.register_actions(window, cx);
7239 self.register_key_listeners(window, cx, layout);
7240
7241 let text_style = TextStyleRefinement {
7242 font_size: Some(self.style.text.font_size),
7243 line_height: Some(self.style.text.line_height),
7244 ..Default::default()
7245 };
7246 let rem_size = self.rem_size(cx);
7247 window.with_rem_size(rem_size, |window| {
7248 window.with_text_style(Some(text_style), |window| {
7249 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7250 self.paint_mouse_listeners(layout, window, cx);
7251 self.paint_background(layout, window, cx);
7252 self.paint_indent_guides(layout, window, cx);
7253
7254 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7255 self.paint_blamed_display_rows(layout, window, cx);
7256 self.paint_line_numbers(layout, window, cx);
7257 }
7258
7259 self.paint_text(layout, window, cx);
7260
7261 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7262 self.paint_gutter_highlights(layout, window, cx);
7263 self.paint_gutter_indicators(layout, window, cx);
7264 }
7265
7266 if !layout.blocks.is_empty() {
7267 window.with_element_namespace("blocks", |window| {
7268 self.paint_blocks(layout, window, cx);
7269 });
7270 }
7271
7272 window.with_element_namespace("blocks", |window| {
7273 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7274 sticky_header.paint(window, cx)
7275 }
7276 });
7277
7278 self.paint_scrollbars(layout, window, cx);
7279 self.paint_inline_completion_popover(layout, window, cx);
7280 self.paint_mouse_context_menu(layout, window, cx);
7281 });
7282 })
7283 })
7284 }
7285}
7286
7287pub(super) fn gutter_bounds(
7288 editor_bounds: Bounds<Pixels>,
7289 gutter_dimensions: GutterDimensions,
7290) -> Bounds<Pixels> {
7291 Bounds {
7292 origin: editor_bounds.origin,
7293 size: size(gutter_dimensions.width, editor_bounds.size.height),
7294 }
7295}
7296
7297struct ScrollbarRangeData {
7298 scrollbar_bounds: Bounds<Pixels>,
7299 scroll_range: Bounds<Pixels>,
7300 letter_size: Size<Pixels>,
7301}
7302
7303impl ScrollbarRangeData {
7304 pub fn new(
7305 scrollbar_bounds: Bounds<Pixels>,
7306 letter_size: Size<Pixels>,
7307 snapshot: &EditorSnapshot,
7308 longest_line_width: Pixels,
7309 longest_line_blame_width: Pixels,
7310 style: &EditorStyle,
7311
7312 cx: &mut App,
7313 ) -> ScrollbarRangeData {
7314 // TODO: Simplify this function down, it requires a lot of parameters
7315 let max_row = snapshot.max_point().row();
7316 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7317
7318 let scrollbar_width = style.scrollbar_width;
7319
7320 let settings = EditorSettings::get_global(cx);
7321 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7322 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7323 ScrollBeyondLastLine::Off => px(1.),
7324 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7325 };
7326
7327 let overscroll = size(
7328 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7329 letter_size.height * scroll_beyond_last_line,
7330 );
7331
7332 let scroll_range = Bounds {
7333 origin: scrollbar_bounds.origin,
7334 size: text_bounds_size + overscroll,
7335 };
7336
7337 ScrollbarRangeData {
7338 scrollbar_bounds,
7339 scroll_range,
7340 letter_size,
7341 }
7342 }
7343}
7344
7345impl IntoElement for EditorElement {
7346 type Element = Self;
7347
7348 fn into_element(self) -> Self::Element {
7349 self
7350 }
7351}
7352
7353pub struct EditorLayout {
7354 position_map: Rc<PositionMap>,
7355 hitbox: Hitbox,
7356 text_hitbox: Hitbox,
7357 gutter_hitbox: Hitbox,
7358 content_origin: gpui::Point<Pixels>,
7359 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7360 mode: EditorMode,
7361 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7362 indent_guides: Option<Vec<IndentGuideLayout>>,
7363 visible_display_row_range: Range<DisplayRow>,
7364 active_rows: BTreeMap<DisplayRow, bool>,
7365 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7366 line_elements: SmallVec<[AnyElement; 1]>,
7367 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7368 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7369 blamed_display_rows: Option<Vec<AnyElement>>,
7370 inline_blame: Option<AnyElement>,
7371 blocks: Vec<BlockLayout>,
7372 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7373 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7374 redacted_ranges: Vec<Range<DisplayPoint>>,
7375 cursors: Vec<(DisplayPoint, Hsla)>,
7376 visible_cursors: Vec<CursorLayout>,
7377 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7378 code_actions_indicator: Option<AnyElement>,
7379 test_indicators: Vec<AnyElement>,
7380 crease_toggles: Vec<Option<AnyElement>>,
7381 diff_hunk_controls: Vec<AnyElement>,
7382 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7383 inline_completion_popover: Option<AnyElement>,
7384 mouse_context_menu: Option<AnyElement>,
7385 tab_invisible: ShapedLine,
7386 space_invisible: ShapedLine,
7387 sticky_buffer_header: Option<AnyElement>,
7388}
7389
7390impl EditorLayout {
7391 fn line_end_overshoot(&self) -> Pixels {
7392 0.15 * self.position_map.line_height
7393 }
7394}
7395
7396struct LineNumberLayout {
7397 shaped_line: ShapedLine,
7398 hitbox: Option<Hitbox>,
7399 display_row: DisplayRow,
7400}
7401
7402struct ColoredRange<T> {
7403 start: T,
7404 end: T,
7405 color: Hsla,
7406}
7407
7408#[derive(Clone)]
7409struct ScrollbarLayout {
7410 hitbox: Hitbox,
7411 visible_range: Range<f32>,
7412 visible: bool,
7413 text_unit_size: Pixels,
7414 thumb_size: Pixels,
7415 axis: Axis,
7416}
7417
7418impl ScrollbarLayout {
7419 const BORDER_WIDTH: Pixels = px(1.0);
7420 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7421 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7422 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7423
7424 fn thumb_bounds(&self) -> Bounds<Pixels> {
7425 match self.axis {
7426 Axis::Vertical => {
7427 let thumb_top = self.y_for_row(self.visible_range.start);
7428 let thumb_bottom = thumb_top + self.thumb_size;
7429 Bounds::from_corners(
7430 point(self.hitbox.left(), thumb_top),
7431 point(self.hitbox.right(), thumb_bottom),
7432 )
7433 }
7434 Axis::Horizontal => {
7435 let thumb_left =
7436 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7437 let thumb_right = thumb_left + self.thumb_size;
7438 Bounds::from_corners(
7439 point(thumb_left, self.hitbox.top()),
7440 point(thumb_right, self.hitbox.bottom()),
7441 )
7442 }
7443 }
7444 }
7445
7446 fn y_for_row(&self, row: f32) -> Pixels {
7447 self.hitbox.top() + row * self.text_unit_size
7448 }
7449
7450 fn marker_quads_for_ranges(
7451 &self,
7452 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7453 column: Option<usize>,
7454 ) -> Vec<PaintQuad> {
7455 struct MinMax {
7456 min: Pixels,
7457 max: Pixels,
7458 }
7459 let (x_range, height_limit) = if let Some(column) = column {
7460 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7461 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7462 let end = start + column_width;
7463 (
7464 Range { start, end },
7465 MinMax {
7466 min: Self::MIN_MARKER_HEIGHT,
7467 max: px(f32::MAX),
7468 },
7469 )
7470 } else {
7471 (
7472 Range {
7473 start: Self::BORDER_WIDTH,
7474 end: self.hitbox.size.width,
7475 },
7476 MinMax {
7477 min: Self::LINE_MARKER_HEIGHT,
7478 max: Self::LINE_MARKER_HEIGHT,
7479 },
7480 )
7481 };
7482
7483 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7484 let mut pixel_ranges = row_ranges
7485 .into_iter()
7486 .map(|range| {
7487 let start_y = row_to_y(range.start);
7488 let end_y = row_to_y(range.end)
7489 + self
7490 .text_unit_size
7491 .max(height_limit.min)
7492 .min(height_limit.max);
7493 ColoredRange {
7494 start: start_y,
7495 end: end_y,
7496 color: range.color,
7497 }
7498 })
7499 .peekable();
7500
7501 let mut quads = Vec::new();
7502 while let Some(mut pixel_range) = pixel_ranges.next() {
7503 while let Some(next_pixel_range) = pixel_ranges.peek() {
7504 if pixel_range.end >= next_pixel_range.start - px(1.0)
7505 && pixel_range.color == next_pixel_range.color
7506 {
7507 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7508 pixel_ranges.next();
7509 } else {
7510 break;
7511 }
7512 }
7513
7514 let bounds = Bounds::from_corners(
7515 point(x_range.start, pixel_range.start),
7516 point(x_range.end, pixel_range.end),
7517 );
7518 quads.push(quad(
7519 bounds,
7520 Corners::default(),
7521 pixel_range.color,
7522 Edges::default(),
7523 Hsla::transparent_black(),
7524 ));
7525 }
7526
7527 quads
7528 }
7529}
7530
7531struct CreaseTrailerLayout {
7532 element: AnyElement,
7533 bounds: Bounds<Pixels>,
7534}
7535
7536struct PositionMap {
7537 size: Size<Pixels>,
7538 line_height: Pixels,
7539 scroll_pixel_position: gpui::Point<Pixels>,
7540 scroll_max: gpui::Point<f32>,
7541 em_width: Pixels,
7542 em_advance: Pixels,
7543 line_layouts: Vec<LineWithInvisibles>,
7544 snapshot: EditorSnapshot,
7545}
7546
7547#[derive(Debug, Copy, Clone)]
7548pub struct PointForPosition {
7549 pub previous_valid: DisplayPoint,
7550 pub next_valid: DisplayPoint,
7551 pub exact_unclipped: DisplayPoint,
7552 pub column_overshoot_after_line_end: u32,
7553}
7554
7555impl PointForPosition {
7556 pub fn as_valid(&self) -> Option<DisplayPoint> {
7557 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7558 Some(self.previous_valid)
7559 } else {
7560 None
7561 }
7562 }
7563}
7564
7565impl PositionMap {
7566 fn point_for_position(
7567 &self,
7568 text_bounds: Bounds<Pixels>,
7569 position: gpui::Point<Pixels>,
7570 ) -> PointForPosition {
7571 let scroll_position = self.snapshot.scroll_position();
7572 let position = position - text_bounds.origin;
7573 let y = position.y.max(px(0.)).min(self.size.height);
7574 let x = position.x + (scroll_position.x * self.em_width);
7575 let row = ((y / self.line_height) + scroll_position.y) as u32;
7576
7577 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7578 .line_layouts
7579 .get(row as usize - scroll_position.y as usize)
7580 {
7581 if let Some(ix) = line.index_for_x(x) {
7582 (ix as u32, px(0.))
7583 } else {
7584 (line.len as u32, px(0.).max(x - line.width))
7585 }
7586 } else {
7587 (0, x)
7588 };
7589
7590 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7591 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7592 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7593
7594 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7595 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7596 PointForPosition {
7597 previous_valid,
7598 next_valid,
7599 exact_unclipped,
7600 column_overshoot_after_line_end,
7601 }
7602 }
7603}
7604
7605struct BlockLayout {
7606 id: BlockId,
7607 row: Option<DisplayRow>,
7608 element: AnyElement,
7609 available_space: Size<AvailableSpace>,
7610 style: BlockStyle,
7611}
7612
7613fn layout_line(
7614 row: DisplayRow,
7615 snapshot: &EditorSnapshot,
7616 style: &EditorStyle,
7617 text_width: Pixels,
7618 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7619 window: &mut Window,
7620 cx: &mut App,
7621) -> LineWithInvisibles {
7622 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7623 LineWithInvisibles::from_chunks(
7624 chunks,
7625 &style,
7626 MAX_LINE_LEN,
7627 1,
7628 snapshot.mode,
7629 text_width,
7630 is_row_soft_wrapped,
7631 window,
7632 cx,
7633 )
7634 .pop()
7635 .unwrap()
7636}
7637
7638#[derive(Debug)]
7639pub struct IndentGuideLayout {
7640 origin: gpui::Point<Pixels>,
7641 length: Pixels,
7642 single_indent_width: Pixels,
7643 depth: u32,
7644 active: bool,
7645 settings: IndentGuideSettings,
7646}
7647
7648pub struct CursorLayout {
7649 origin: gpui::Point<Pixels>,
7650 block_width: Pixels,
7651 line_height: Pixels,
7652 color: Hsla,
7653 shape: CursorShape,
7654 block_text: Option<ShapedLine>,
7655 cursor_name: Option<AnyElement>,
7656}
7657
7658#[derive(Debug)]
7659pub struct CursorName {
7660 string: SharedString,
7661 color: Hsla,
7662 is_top_row: bool,
7663}
7664
7665impl CursorLayout {
7666 pub fn new(
7667 origin: gpui::Point<Pixels>,
7668 block_width: Pixels,
7669 line_height: Pixels,
7670 color: Hsla,
7671 shape: CursorShape,
7672 block_text: Option<ShapedLine>,
7673 ) -> CursorLayout {
7674 CursorLayout {
7675 origin,
7676 block_width,
7677 line_height,
7678 color,
7679 shape,
7680 block_text,
7681 cursor_name: None,
7682 }
7683 }
7684
7685 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7686 Bounds {
7687 origin: self.origin + origin,
7688 size: size(self.block_width, self.line_height),
7689 }
7690 }
7691
7692 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7693 match self.shape {
7694 CursorShape::Bar => Bounds {
7695 origin: self.origin + origin,
7696 size: size(px(2.0), self.line_height),
7697 },
7698 CursorShape::Block | CursorShape::Hollow => Bounds {
7699 origin: self.origin + origin,
7700 size: size(self.block_width, self.line_height),
7701 },
7702 CursorShape::Underline => Bounds {
7703 origin: self.origin
7704 + origin
7705 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7706 size: size(self.block_width, px(2.0)),
7707 },
7708 }
7709 }
7710
7711 pub fn layout(
7712 &mut self,
7713 origin: gpui::Point<Pixels>,
7714 cursor_name: Option<CursorName>,
7715 window: &mut Window,
7716 cx: &mut App,
7717 ) {
7718 if let Some(cursor_name) = cursor_name {
7719 let bounds = self.bounds(origin);
7720 let text_size = self.line_height / 1.5;
7721
7722 let name_origin = if cursor_name.is_top_row {
7723 point(bounds.right() - px(1.), bounds.top())
7724 } else {
7725 match self.shape {
7726 CursorShape::Bar => point(
7727 bounds.right() - px(2.),
7728 bounds.top() - text_size / 2. - px(1.),
7729 ),
7730 _ => point(
7731 bounds.right() - px(1.),
7732 bounds.top() - text_size / 2. - px(1.),
7733 ),
7734 }
7735 };
7736 let mut name_element = div()
7737 .bg(self.color)
7738 .text_size(text_size)
7739 .px_0p5()
7740 .line_height(text_size + px(2.))
7741 .text_color(cursor_name.color)
7742 .child(cursor_name.string.clone())
7743 .into_any_element();
7744
7745 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
7746
7747 self.cursor_name = Some(name_element);
7748 }
7749 }
7750
7751 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
7752 let bounds = self.bounds(origin);
7753
7754 //Draw background or border quad
7755 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7756 outline(bounds, self.color)
7757 } else {
7758 fill(bounds, self.color)
7759 };
7760
7761 if let Some(name) = &mut self.cursor_name {
7762 name.paint(window, cx);
7763 }
7764
7765 window.paint_quad(cursor);
7766
7767 if let Some(block_text) = &self.block_text {
7768 block_text
7769 .paint(self.origin + origin, self.line_height, window, cx)
7770 .log_err();
7771 }
7772 }
7773
7774 pub fn shape(&self) -> CursorShape {
7775 self.shape
7776 }
7777}
7778
7779#[derive(Debug)]
7780pub struct HighlightedRange {
7781 pub start_y: Pixels,
7782 pub line_height: Pixels,
7783 pub lines: Vec<HighlightedRangeLine>,
7784 pub color: Hsla,
7785 pub corner_radius: Pixels,
7786}
7787
7788#[derive(Debug)]
7789pub struct HighlightedRangeLine {
7790 pub start_x: Pixels,
7791 pub end_x: Pixels,
7792}
7793
7794impl HighlightedRange {
7795 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
7796 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
7797 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
7798 self.paint_lines(
7799 self.start_y + self.line_height,
7800 &self.lines[1..],
7801 bounds,
7802 window,
7803 );
7804 } else {
7805 self.paint_lines(self.start_y, &self.lines, bounds, window);
7806 }
7807 }
7808
7809 fn paint_lines(
7810 &self,
7811 start_y: Pixels,
7812 lines: &[HighlightedRangeLine],
7813 _bounds: Bounds<Pixels>,
7814 window: &mut Window,
7815 ) {
7816 if lines.is_empty() {
7817 return;
7818 }
7819
7820 let first_line = lines.first().unwrap();
7821 let last_line = lines.last().unwrap();
7822
7823 let first_top_left = point(first_line.start_x, start_y);
7824 let first_top_right = point(first_line.end_x, start_y);
7825
7826 let curve_height = point(Pixels::ZERO, self.corner_radius);
7827 let curve_width = |start_x: Pixels, end_x: Pixels| {
7828 let max = (end_x - start_x) / 2.;
7829 let width = if max < self.corner_radius {
7830 max
7831 } else {
7832 self.corner_radius
7833 };
7834
7835 point(width, Pixels::ZERO)
7836 };
7837
7838 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
7839 let mut path = gpui::Path::new(first_top_right - top_curve_width);
7840 path.curve_to(first_top_right + curve_height, first_top_right);
7841
7842 let mut iter = lines.iter().enumerate().peekable();
7843 while let Some((ix, line)) = iter.next() {
7844 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
7845
7846 if let Some((_, next_line)) = iter.peek() {
7847 let next_top_right = point(next_line.end_x, bottom_right.y);
7848
7849 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
7850 Ordering::Equal => {
7851 path.line_to(bottom_right);
7852 }
7853 Ordering::Less => {
7854 let curve_width = curve_width(next_top_right.x, bottom_right.x);
7855 path.line_to(bottom_right - curve_height);
7856 if self.corner_radius > Pixels::ZERO {
7857 path.curve_to(bottom_right - curve_width, bottom_right);
7858 }
7859 path.line_to(next_top_right + curve_width);
7860 if self.corner_radius > Pixels::ZERO {
7861 path.curve_to(next_top_right + curve_height, next_top_right);
7862 }
7863 }
7864 Ordering::Greater => {
7865 let curve_width = curve_width(bottom_right.x, next_top_right.x);
7866 path.line_to(bottom_right - curve_height);
7867 if self.corner_radius > Pixels::ZERO {
7868 path.curve_to(bottom_right + curve_width, bottom_right);
7869 }
7870 path.line_to(next_top_right - curve_width);
7871 if self.corner_radius > Pixels::ZERO {
7872 path.curve_to(next_top_right + curve_height, next_top_right);
7873 }
7874 }
7875 }
7876 } else {
7877 let curve_width = curve_width(line.start_x, line.end_x);
7878 path.line_to(bottom_right - curve_height);
7879 if self.corner_radius > Pixels::ZERO {
7880 path.curve_to(bottom_right - curve_width, bottom_right);
7881 }
7882
7883 let bottom_left = point(line.start_x, bottom_right.y);
7884 path.line_to(bottom_left + curve_width);
7885 if self.corner_radius > Pixels::ZERO {
7886 path.curve_to(bottom_left - curve_height, bottom_left);
7887 }
7888 }
7889 }
7890
7891 if first_line.start_x > last_line.start_x {
7892 let curve_width = curve_width(last_line.start_x, first_line.start_x);
7893 let second_top_left = point(last_line.start_x, start_y + self.line_height);
7894 path.line_to(second_top_left + curve_height);
7895 if self.corner_radius > Pixels::ZERO {
7896 path.curve_to(second_top_left + curve_width, second_top_left);
7897 }
7898 let first_bottom_left = point(first_line.start_x, second_top_left.y);
7899 path.line_to(first_bottom_left - curve_width);
7900 if self.corner_radius > Pixels::ZERO {
7901 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
7902 }
7903 }
7904
7905 path.line_to(first_top_left + curve_height);
7906 if self.corner_radius > Pixels::ZERO {
7907 path.curve_to(first_top_left + top_curve_width, first_top_left);
7908 }
7909 path.line_to(first_top_right - top_curve_width);
7910
7911 window.paint_path(path, self.color);
7912 }
7913}
7914
7915pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7916 (delta.pow(1.5) / 100.0).into()
7917}
7918
7919fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
7920 (delta.pow(1.2) / 300.0).into()
7921}
7922
7923pub fn register_action<T: Action>(
7924 editor: &Entity<Editor>,
7925 window: &mut Window,
7926 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
7927) {
7928 let editor = editor.clone();
7929 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
7930 let action = action.downcast_ref().unwrap();
7931 if phase == DispatchPhase::Bubble {
7932 editor.update(cx, |editor, cx| {
7933 listener(editor, action, window, cx);
7934 })
7935 }
7936 })
7937}
7938
7939fn compute_auto_height_layout(
7940 editor: &mut Editor,
7941 max_lines: usize,
7942 max_line_number_width: Pixels,
7943 known_dimensions: Size<Option<Pixels>>,
7944 available_width: AvailableSpace,
7945 window: &mut Window,
7946 cx: &mut Context<Editor>,
7947) -> Option<Size<Pixels>> {
7948 let width = known_dimensions.width.or({
7949 if let AvailableSpace::Definite(available_width) = available_width {
7950 Some(available_width)
7951 } else {
7952 None
7953 }
7954 })?;
7955 if let Some(height) = known_dimensions.height {
7956 return Some(size(width, height));
7957 }
7958
7959 let style = editor.style.as_ref().unwrap();
7960 let font_id = window.text_system().resolve_font(&style.text.font());
7961 let font_size = style.text.font_size.to_pixels(window.rem_size());
7962 let line_height = style.text.line_height_in_pixels(window.rem_size());
7963 let em_width = window
7964 .text_system()
7965 .typographic_bounds(font_id, font_size, 'm')
7966 .unwrap()
7967 .size
7968 .width;
7969 let em_advance = window
7970 .text_system()
7971 .advance(font_id, font_size, 'm')
7972 .unwrap()
7973 .width;
7974
7975 let mut snapshot = editor.snapshot(window, cx);
7976 let gutter_dimensions = snapshot.gutter_dimensions(
7977 font_id,
7978 font_size,
7979 em_width,
7980 em_advance,
7981 max_line_number_width,
7982 cx,
7983 );
7984
7985 editor.gutter_dimensions = gutter_dimensions;
7986 let text_width = width - gutter_dimensions.width;
7987 let overscroll = size(em_width, px(0.));
7988
7989 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
7990 if editor.set_wrap_width(Some(editor_width), cx) {
7991 snapshot = editor.snapshot(window, cx);
7992 }
7993
7994 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
7995 let height = scroll_height
7996 .max(line_height)
7997 .min(line_height * max_lines as f32);
7998
7999 Some(size(width, height))
8000}
8001
8002#[cfg(test)]
8003mod tests {
8004 use super::*;
8005 use crate::{
8006 display_map::{BlockPlacement, BlockProperties},
8007 editor_tests::{init_test, update_test_language_settings},
8008 Editor, MultiBuffer,
8009 };
8010 use gpui::{TestAppContext, VisualTestContext};
8011 use language::language_settings;
8012 use log::info;
8013 use similar::DiffableStr;
8014 use std::num::NonZeroU32;
8015 use util::test::sample_text;
8016
8017 #[gpui::test]
8018 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8019 init_test(cx, |_| {});
8020 let window = cx.add_window(|window, cx| {
8021 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8022 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8023 });
8024
8025 let editor = window.root(cx).unwrap();
8026 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8027 let line_height = window
8028 .update(cx, |_, window, _| {
8029 style.text.line_height_in_pixels(window.rem_size())
8030 })
8031 .unwrap();
8032 let element = EditorElement::new(&editor, style);
8033 let snapshot = window
8034 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8035 .unwrap();
8036
8037 let layouts = cx
8038 .update_window(*window, |_, window, cx| {
8039 element.layout_line_numbers(
8040 None,
8041 GutterDimensions {
8042 left_padding: Pixels::ZERO,
8043 right_padding: Pixels::ZERO,
8044 width: px(30.0),
8045 margin: Pixels::ZERO,
8046 git_blame_entries_width: None,
8047 },
8048 line_height,
8049 gpui::Point::default(),
8050 DisplayRow(0)..DisplayRow(6),
8051 &(0..6)
8052 .map(|row| RowInfo {
8053 buffer_row: Some(row),
8054 ..Default::default()
8055 })
8056 .collect::<Vec<_>>(),
8057 Some(DisplayPoint::new(DisplayRow(0), 0)),
8058 &snapshot,
8059 window,
8060 cx,
8061 )
8062 })
8063 .unwrap();
8064 assert_eq!(layouts.len(), 6);
8065
8066 let relative_rows = window
8067 .update(cx, |editor, window, cx| {
8068 let snapshot = editor.snapshot(window, cx);
8069 element.calculate_relative_line_numbers(
8070 &snapshot,
8071 &(DisplayRow(0)..DisplayRow(6)),
8072 Some(DisplayRow(3)),
8073 )
8074 })
8075 .unwrap();
8076 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8077 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8078 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8079 // current line has no relative number
8080 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8081 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8082
8083 // works if cursor is before screen
8084 let relative_rows = window
8085 .update(cx, |editor, window, cx| {
8086 let snapshot = editor.snapshot(window, cx);
8087 element.calculate_relative_line_numbers(
8088 &snapshot,
8089 &(DisplayRow(3)..DisplayRow(6)),
8090 Some(DisplayRow(1)),
8091 )
8092 })
8093 .unwrap();
8094 assert_eq!(relative_rows.len(), 3);
8095 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8096 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8097 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8098
8099 // works if cursor is after screen
8100 let relative_rows = window
8101 .update(cx, |editor, window, cx| {
8102 let snapshot = editor.snapshot(window, cx);
8103 element.calculate_relative_line_numbers(
8104 &snapshot,
8105 &(DisplayRow(0)..DisplayRow(3)),
8106 Some(DisplayRow(6)),
8107 )
8108 })
8109 .unwrap();
8110 assert_eq!(relative_rows.len(), 3);
8111 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8112 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8113 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8114 }
8115
8116 #[gpui::test]
8117 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8118 init_test(cx, |_| {});
8119
8120 let window = cx.add_window(|window, cx| {
8121 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8122 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8123 });
8124 let cx = &mut VisualTestContext::from_window(*window, cx);
8125 let editor = window.root(cx).unwrap();
8126 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8127
8128 window
8129 .update(cx, |editor, window, cx| {
8130 editor.cursor_shape = CursorShape::Block;
8131 editor.change_selections(None, window, cx, |s| {
8132 s.select_ranges([
8133 Point::new(0, 0)..Point::new(1, 0),
8134 Point::new(3, 2)..Point::new(3, 3),
8135 Point::new(5, 6)..Point::new(6, 0),
8136 ]);
8137 });
8138 })
8139 .unwrap();
8140
8141 let (_, state) = cx.draw(
8142 point(px(500.), px(500.)),
8143 size(px(500.), px(500.)),
8144 |_, _| EditorElement::new(&editor, style),
8145 );
8146
8147 assert_eq!(state.selections.len(), 1);
8148 let local_selections = &state.selections[0].1;
8149 assert_eq!(local_selections.len(), 3);
8150 // moves cursor back one line
8151 assert_eq!(
8152 local_selections[0].head,
8153 DisplayPoint::new(DisplayRow(0), 6)
8154 );
8155 assert_eq!(
8156 local_selections[0].range,
8157 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8158 );
8159
8160 // moves cursor back one column
8161 assert_eq!(
8162 local_selections[1].range,
8163 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8164 );
8165 assert_eq!(
8166 local_selections[1].head,
8167 DisplayPoint::new(DisplayRow(3), 2)
8168 );
8169
8170 // leaves cursor on the max point
8171 assert_eq!(
8172 local_selections[2].range,
8173 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8174 );
8175 assert_eq!(
8176 local_selections[2].head,
8177 DisplayPoint::new(DisplayRow(6), 0)
8178 );
8179
8180 // active lines does not include 1 (even though the range of the selection does)
8181 assert_eq!(
8182 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8183 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8184 );
8185
8186 // multi-buffer support
8187 // in DisplayPoint coordinates, this is what we're dealing with:
8188 // 0: [[file
8189 // 1: header
8190 // 2: section]]
8191 // 3: aaaaaa
8192 // 4: bbbbbb
8193 // 5: cccccc
8194 // 6:
8195 // 7: [[footer]]
8196 // 8: [[header]]
8197 // 9: ffffff
8198 // 10: gggggg
8199 // 11: hhhhhh
8200 // 12:
8201 // 13: [[footer]]
8202 // 14: [[file
8203 // 15: header
8204 // 16: section]]
8205 // 17: bbbbbb
8206 // 18: cccccc
8207 // 19: dddddd
8208 // 20: [[footer]]
8209 let window = cx.add_window(|window, cx| {
8210 let buffer = MultiBuffer::build_multi(
8211 [
8212 (
8213 &(sample_text(8, 6, 'a') + "\n"),
8214 vec![
8215 Point::new(0, 0)..Point::new(3, 0),
8216 Point::new(4, 0)..Point::new(7, 0),
8217 ],
8218 ),
8219 (
8220 &(sample_text(8, 6, 'a') + "\n"),
8221 vec![Point::new(1, 0)..Point::new(3, 0)],
8222 ),
8223 ],
8224 cx,
8225 );
8226 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8227 });
8228 let editor = window.root(cx).unwrap();
8229 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8230 let _state = window.update(cx, |editor, window, cx| {
8231 editor.cursor_shape = CursorShape::Block;
8232 editor.change_selections(None, window, cx, |s| {
8233 s.select_display_ranges([
8234 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8235 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8236 ]);
8237 });
8238 });
8239
8240 let (_, state) = cx.draw(
8241 point(px(500.), px(500.)),
8242 size(px(500.), px(500.)),
8243 |_, _| EditorElement::new(&editor, style),
8244 );
8245 assert_eq!(state.selections.len(), 1);
8246 let local_selections = &state.selections[0].1;
8247 assert_eq!(local_selections.len(), 2);
8248
8249 // moves cursor on excerpt boundary back a line
8250 // and doesn't allow selection to bleed through
8251 assert_eq!(
8252 local_selections[0].range,
8253 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8254 );
8255 assert_eq!(
8256 local_selections[0].head,
8257 DisplayPoint::new(DisplayRow(6), 0)
8258 );
8259 // moves cursor on buffer boundary back two lines
8260 // and doesn't allow selection to bleed through
8261 assert_eq!(
8262 local_selections[1].range,
8263 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8264 );
8265 assert_eq!(
8266 local_selections[1].head,
8267 DisplayPoint::new(DisplayRow(12), 0)
8268 );
8269 }
8270
8271 #[gpui::test]
8272 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8273 init_test(cx, |_| {});
8274
8275 let window = cx.add_window(|window, cx| {
8276 let buffer = MultiBuffer::build_simple("", cx);
8277 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8278 });
8279 let cx = &mut VisualTestContext::from_window(*window, cx);
8280 let editor = window.root(cx).unwrap();
8281 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8282 window
8283 .update(cx, |editor, window, cx| {
8284 editor.set_placeholder_text("hello", cx);
8285 editor.insert_blocks(
8286 [BlockProperties {
8287 style: BlockStyle::Fixed,
8288 placement: BlockPlacement::Above(Anchor::min()),
8289 height: 3,
8290 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8291 priority: 0,
8292 }],
8293 None,
8294 cx,
8295 );
8296
8297 // Blur the editor so that it displays placeholder text.
8298 window.blur();
8299 })
8300 .unwrap();
8301
8302 let (_, state) = cx.draw(
8303 point(px(500.), px(500.)),
8304 size(px(500.), px(500.)),
8305 |_, _| EditorElement::new(&editor, style),
8306 );
8307 assert_eq!(state.position_map.line_layouts.len(), 4);
8308 assert_eq!(state.line_numbers.len(), 1);
8309 assert_eq!(
8310 state
8311 .line_numbers
8312 .get(&MultiBufferRow(0))
8313 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8314 Some("1")
8315 );
8316 }
8317
8318 #[gpui::test]
8319 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8320 const TAB_SIZE: u32 = 4;
8321
8322 let input_text = "\t \t|\t| a b";
8323 let expected_invisibles = vec![
8324 Invisible::Tab {
8325 line_start_offset: 0,
8326 line_end_offset: TAB_SIZE as usize,
8327 },
8328 Invisible::Whitespace {
8329 line_offset: TAB_SIZE as usize,
8330 },
8331 Invisible::Tab {
8332 line_start_offset: TAB_SIZE as usize + 1,
8333 line_end_offset: TAB_SIZE as usize * 2,
8334 },
8335 Invisible::Tab {
8336 line_start_offset: TAB_SIZE as usize * 2 + 1,
8337 line_end_offset: TAB_SIZE as usize * 3,
8338 },
8339 Invisible::Whitespace {
8340 line_offset: TAB_SIZE as usize * 3 + 1,
8341 },
8342 Invisible::Whitespace {
8343 line_offset: TAB_SIZE as usize * 3 + 3,
8344 },
8345 ];
8346 assert_eq!(
8347 expected_invisibles.len(),
8348 input_text
8349 .chars()
8350 .filter(|initial_char| initial_char.is_whitespace())
8351 .count(),
8352 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8353 );
8354
8355 for show_line_numbers in [true, false] {
8356 init_test(cx, |s| {
8357 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8358 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8359 });
8360
8361 let actual_invisibles = collect_invisibles_from_new_editor(
8362 cx,
8363 EditorMode::Full,
8364 input_text,
8365 px(500.0),
8366 show_line_numbers,
8367 );
8368
8369 assert_eq!(expected_invisibles, actual_invisibles);
8370 }
8371 }
8372
8373 #[gpui::test]
8374 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8375 init_test(cx, |s| {
8376 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8377 s.defaults.tab_size = NonZeroU32::new(4);
8378 });
8379
8380 for editor_mode_without_invisibles in [
8381 EditorMode::SingleLine { auto_width: false },
8382 EditorMode::AutoHeight { max_lines: 100 },
8383 ] {
8384 for show_line_numbers in [true, false] {
8385 let invisibles = collect_invisibles_from_new_editor(
8386 cx,
8387 editor_mode_without_invisibles,
8388 "\t\t\t| | a b",
8389 px(500.0),
8390 show_line_numbers,
8391 );
8392 assert!(invisibles.is_empty(),
8393 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8394 }
8395 }
8396 }
8397
8398 #[gpui::test]
8399 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8400 let tab_size = 4;
8401 let input_text = "a\tbcd ".repeat(9);
8402 let repeated_invisibles = [
8403 Invisible::Tab {
8404 line_start_offset: 1,
8405 line_end_offset: tab_size as usize,
8406 },
8407 Invisible::Whitespace {
8408 line_offset: tab_size as usize + 3,
8409 },
8410 Invisible::Whitespace {
8411 line_offset: tab_size as usize + 4,
8412 },
8413 Invisible::Whitespace {
8414 line_offset: tab_size as usize + 5,
8415 },
8416 Invisible::Whitespace {
8417 line_offset: tab_size as usize + 6,
8418 },
8419 Invisible::Whitespace {
8420 line_offset: tab_size as usize + 7,
8421 },
8422 ];
8423 let expected_invisibles = std::iter::once(repeated_invisibles)
8424 .cycle()
8425 .take(9)
8426 .flatten()
8427 .collect::<Vec<_>>();
8428 assert_eq!(
8429 expected_invisibles.len(),
8430 input_text
8431 .chars()
8432 .filter(|initial_char| initial_char.is_whitespace())
8433 .count(),
8434 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8435 );
8436 info!("Expected invisibles: {expected_invisibles:?}");
8437
8438 init_test(cx, |_| {});
8439
8440 // Put the same string with repeating whitespace pattern into editors of various size,
8441 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8442 let resize_step = 10.0;
8443 let mut editor_width = 200.0;
8444 while editor_width <= 1000.0 {
8445 for show_line_numbers in [true, false] {
8446 update_test_language_settings(cx, |s| {
8447 s.defaults.tab_size = NonZeroU32::new(tab_size);
8448 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8449 s.defaults.preferred_line_length = Some(editor_width as u32);
8450 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8451 });
8452
8453 let actual_invisibles = collect_invisibles_from_new_editor(
8454 cx,
8455 EditorMode::Full,
8456 &input_text,
8457 px(editor_width),
8458 show_line_numbers,
8459 );
8460
8461 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8462 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8463 let mut i = 0;
8464 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8465 i = actual_index;
8466 match expected_invisibles.get(i) {
8467 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8468 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8469 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8470 _ => {
8471 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8472 }
8473 },
8474 None => {
8475 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8476 }
8477 }
8478 }
8479 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8480 assert!(
8481 missing_expected_invisibles.is_empty(),
8482 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8483 );
8484
8485 editor_width += resize_step;
8486 }
8487 }
8488 }
8489
8490 fn collect_invisibles_from_new_editor(
8491 cx: &mut TestAppContext,
8492 editor_mode: EditorMode,
8493 input_text: &str,
8494 editor_width: Pixels,
8495 show_line_numbers: bool,
8496 ) -> Vec<Invisible> {
8497 info!(
8498 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8499 editor_width.0
8500 );
8501 let window = cx.add_window(|window, cx| {
8502 let buffer = MultiBuffer::build_simple(input_text, cx);
8503 Editor::new(editor_mode, buffer, None, true, window, cx)
8504 });
8505 let cx = &mut VisualTestContext::from_window(*window, cx);
8506 let editor = window.root(cx).unwrap();
8507
8508 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8509 window
8510 .update(cx, |editor, _, cx| {
8511 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8512 editor.set_wrap_width(Some(editor_width), cx);
8513 editor.set_show_line_numbers(show_line_numbers, cx);
8514 })
8515 .unwrap();
8516 let (_, state) = cx.draw(
8517 point(px(500.), px(500.)),
8518 size(px(500.), px(500.)),
8519 |_, _| EditorElement::new(&editor, style),
8520 );
8521 state
8522 .position_map
8523 .line_layouts
8524 .iter()
8525 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8526 .cloned()
8527 .collect()
8528 }
8529}
8530
8531fn diff_hunk_controls(
8532 row: u32,
8533 hunk_range: Range<Anchor>,
8534 line_height: Pixels,
8535 editor: &Entity<Editor>,
8536 cx: &mut App,
8537) -> AnyElement {
8538 h_flex()
8539 .h(line_height)
8540 .mr_1()
8541 .gap_1()
8542 .px_1()
8543 .pb_1()
8544 .border_b_1()
8545 .border_color(cx.theme().colors().border_variant)
8546 .rounded_b_lg()
8547 .bg(cx.theme().colors().editor_background)
8548 .gap_1()
8549 .child(
8550 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8551 .shape(IconButtonShape::Square)
8552 .icon_size(IconSize::Small)
8553 // .disabled(!has_multiple_hunks)
8554 .tooltip({
8555 let focus_handle = editor.focus_handle(cx);
8556 move |window, cx| {
8557 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8558 }
8559 })
8560 .on_click({
8561 let editor = editor.clone();
8562 move |_event, window, cx| {
8563 editor.update(cx, |editor, cx| {
8564 let snapshot = editor.snapshot(window, cx);
8565 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8566 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8567 editor.expand_selected_diff_hunks(cx);
8568 });
8569 }
8570 }),
8571 )
8572 .child(
8573 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8574 .shape(IconButtonShape::Square)
8575 .icon_size(IconSize::Small)
8576 // .disabled(!has_multiple_hunks)
8577 .tooltip({
8578 let focus_handle = editor.focus_handle(cx);
8579 move |window, cx| {
8580 Tooltip::for_action_in(
8581 "Previous Hunk",
8582 &GoToPrevHunk,
8583 &focus_handle,
8584 window,
8585 cx,
8586 )
8587 }
8588 })
8589 .on_click({
8590 let editor = editor.clone();
8591 move |_event, window, cx| {
8592 editor.update(cx, |editor, cx| {
8593 let snapshot = editor.snapshot(window, cx);
8594 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8595 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8596 editor.expand_selected_diff_hunks(cx);
8597 });
8598 }
8599 }),
8600 )
8601 .child(
8602 IconButton::new("discard", IconName::Undo)
8603 .shape(IconButtonShape::Square)
8604 .icon_size(IconSize::Small)
8605 .tooltip({
8606 let focus_handle = editor.focus_handle(cx);
8607 move |window, cx| {
8608 Tooltip::for_action_in(
8609 "Discard Hunk",
8610 &RevertSelectedHunks,
8611 &focus_handle,
8612 window,
8613 cx,
8614 )
8615 }
8616 })
8617 .on_click({
8618 let editor = editor.clone();
8619 move |_event, window, cx| {
8620 editor.update(cx, |editor, cx| {
8621 let snapshot = editor.snapshot(window, cx);
8622 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8623 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8624 });
8625 }
8626 }),
8627 )
8628 .into_any_element()
8629}