1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 display_map::{
4 BlockContext, BlockStyle, DisplaySnapshot, FoldStatus, HighlightedChunk, ToDisplayPoint,
5 TransformBlock,
6 },
7 editor_settings::{DoubleClickInMultibuffer, MultiCursorModifier, ShowScrollbar},
8 git::{blame::GitBlame, diff_hunk_to_display, DisplayDiffHunk},
9 hover_popover::{
10 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
11 },
12 items::BufferSearchHighlights,
13 mouse_context_menu::{self, MouseContextMenu},
14 scroll::scroll_amount::ScrollAmount,
15 CodeActionsMenu, CursorShape, DisplayPoint, DocumentHighlightRead, DocumentHighlightWrite,
16 Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts,
17 GutterDimensions, HalfPageDown, HalfPageUp, HoveredCursor, HunkToExpand, LineDown, LineUp,
18 OpenExcerpts, PageDown, PageUp, Point, SelectPhase, Selection, SoftWrap, ToPoint,
19 CURSORS_VISIBLE_FOR, MAX_LINE_LEN,
20};
21use anyhow::Result;
22use client::ParticipantIndex;
23use collections::{BTreeMap, HashMap, HashSet};
24use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
25use gpui::{
26 anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
27 transparent_black, Action, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClipboardItem,
28 ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
29 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, ModifiersChangedEvent,
30 MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels,
31 ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size, Stateful,
32 StatefulInteractiveElement, Style, Styled, TextRun, TextStyle, TextStyleRefinement, View,
33 ViewContext, WeakView, WindowContext,
34};
35use itertools::Itertools;
36use language::language_settings::ShowWhitespaceSetting;
37use lsp::DiagnosticSeverity;
38use multi_buffer::Anchor;
39use project::{
40 project_settings::{GitGutterSetting, ProjectSettings},
41 ProjectPath,
42};
43use settings::Settings;
44use smallvec::SmallVec;
45use std::{
46 any::TypeId,
47 borrow::Cow,
48 cmp::{self, max, Ordering},
49 fmt::Write,
50 iter, mem,
51 ops::{Deref, Range},
52 sync::Arc,
53};
54use sum_tree::Bias;
55use theme::{ActiveTheme, PlayerColor};
56use ui::prelude::*;
57use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
58use util::ResultExt;
59use workspace::{item::Item, Workspace};
60
61struct SelectionLayout {
62 head: DisplayPoint,
63 cursor_shape: CursorShape,
64 is_newest: bool,
65 is_local: bool,
66 range: Range<DisplayPoint>,
67 active_rows: Range<u32>,
68 user_name: Option<SharedString>,
69}
70
71impl SelectionLayout {
72 fn new<T: ToPoint + ToDisplayPoint + Clone>(
73 selection: Selection<T>,
74 line_mode: bool,
75 cursor_shape: CursorShape,
76 map: &DisplaySnapshot,
77 is_newest: bool,
78 is_local: bool,
79 user_name: Option<SharedString>,
80 ) -> Self {
81 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
82 let display_selection = point_selection.map(|p| p.to_display_point(map));
83 let mut range = display_selection.range();
84 let mut head = display_selection.head();
85 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
86 ..map.next_line_boundary(point_selection.end).1.row();
87
88 // vim visual line mode
89 if line_mode {
90 let point_range = map.expand_to_line(point_selection.range());
91 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
92 }
93
94 // any vim visual mode (including line mode)
95 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
96 && !range.is_empty()
97 && !selection.reversed
98 {
99 if head.column() > 0 {
100 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
101 } else if head.row() > 0 && head != map.max_point() {
102 head = map.clip_point(
103 DisplayPoint::new(head.row() - 1, map.line_len(head.row() - 1)),
104 Bias::Left,
105 );
106 // updating range.end is a no-op unless you're cursor is
107 // on the newline containing a multi-buffer divider
108 // in which case the clip_point may have moved the head up
109 // an additional row.
110 range.end = DisplayPoint::new(head.row() + 1, 0);
111 active_rows.end = head.row();
112 }
113 }
114
115 Self {
116 head,
117 cursor_shape,
118 is_newest,
119 is_local,
120 range,
121 active_rows,
122 user_name,
123 }
124 }
125}
126
127pub struct EditorElement {
128 editor: View<Editor>,
129 style: EditorStyle,
130}
131
132impl EditorElement {
133 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
134 Self {
135 editor: editor.clone(),
136 style,
137 }
138 }
139
140 fn register_actions(&self, cx: &mut WindowContext) {
141 let view = &self.editor;
142 view.update(cx, |editor, cx| {
143 for action in editor.editor_actions.iter() {
144 (action)(cx)
145 }
146 });
147
148 crate::rust_analyzer_ext::apply_related_actions(view, cx);
149 register_action(view, cx, Editor::move_left);
150 register_action(view, cx, Editor::move_right);
151 register_action(view, cx, Editor::move_down);
152 register_action(view, cx, Editor::move_down_by_lines);
153 register_action(view, cx, Editor::select_down_by_lines);
154 register_action(view, cx, Editor::move_up);
155 register_action(view, cx, Editor::move_up_by_lines);
156 register_action(view, cx, Editor::select_up_by_lines);
157 register_action(view, cx, Editor::cancel);
158 register_action(view, cx, Editor::newline);
159 register_action(view, cx, Editor::newline_above);
160 register_action(view, cx, Editor::newline_below);
161 register_action(view, cx, Editor::backspace);
162 register_action(view, cx, Editor::delete);
163 register_action(view, cx, Editor::tab);
164 register_action(view, cx, Editor::tab_prev);
165 register_action(view, cx, Editor::indent);
166 register_action(view, cx, Editor::outdent);
167 register_action(view, cx, Editor::delete_line);
168 register_action(view, cx, Editor::join_lines);
169 register_action(view, cx, Editor::sort_lines_case_sensitive);
170 register_action(view, cx, Editor::sort_lines_case_insensitive);
171 register_action(view, cx, Editor::reverse_lines);
172 register_action(view, cx, Editor::shuffle_lines);
173 register_action(view, cx, Editor::convert_to_upper_case);
174 register_action(view, cx, Editor::convert_to_lower_case);
175 register_action(view, cx, Editor::convert_to_title_case);
176 register_action(view, cx, Editor::convert_to_snake_case);
177 register_action(view, cx, Editor::convert_to_kebab_case);
178 register_action(view, cx, Editor::convert_to_upper_camel_case);
179 register_action(view, cx, Editor::convert_to_lower_camel_case);
180 register_action(view, cx, Editor::convert_to_opposite_case);
181 register_action(view, cx, Editor::delete_to_previous_word_start);
182 register_action(view, cx, Editor::delete_to_previous_subword_start);
183 register_action(view, cx, Editor::delete_to_next_word_end);
184 register_action(view, cx, Editor::delete_to_next_subword_end);
185 register_action(view, cx, Editor::delete_to_beginning_of_line);
186 register_action(view, cx, Editor::delete_to_end_of_line);
187 register_action(view, cx, Editor::cut_to_end_of_line);
188 register_action(view, cx, Editor::duplicate_line_up);
189 register_action(view, cx, Editor::duplicate_line_down);
190 register_action(view, cx, Editor::move_line_up);
191 register_action(view, cx, Editor::move_line_down);
192 register_action(view, cx, Editor::transpose);
193 register_action(view, cx, Editor::cut);
194 register_action(view, cx, Editor::copy);
195 register_action(view, cx, Editor::paste);
196 register_action(view, cx, Editor::undo);
197 register_action(view, cx, Editor::redo);
198 register_action(view, cx, Editor::move_page_up);
199 register_action(view, cx, Editor::move_page_down);
200 register_action(view, cx, Editor::next_screen);
201 register_action(view, cx, Editor::scroll_cursor_top);
202 register_action(view, cx, Editor::scroll_cursor_center);
203 register_action(view, cx, Editor::scroll_cursor_bottom);
204 register_action(view, cx, |editor, _: &LineDown, cx| {
205 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
206 });
207 register_action(view, cx, |editor, _: &LineUp, cx| {
208 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
209 });
210 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
211 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
212 });
213 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
214 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
215 });
216 register_action(view, cx, |editor, _: &PageDown, cx| {
217 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
218 });
219 register_action(view, cx, |editor, _: &PageUp, cx| {
220 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
221 });
222 register_action(view, cx, Editor::move_to_previous_word_start);
223 register_action(view, cx, Editor::move_to_previous_subword_start);
224 register_action(view, cx, Editor::move_to_next_word_end);
225 register_action(view, cx, Editor::move_to_next_subword_end);
226 register_action(view, cx, Editor::move_to_beginning_of_line);
227 register_action(view, cx, Editor::move_to_end_of_line);
228 register_action(view, cx, Editor::move_to_start_of_paragraph);
229 register_action(view, cx, Editor::move_to_end_of_paragraph);
230 register_action(view, cx, Editor::move_to_beginning);
231 register_action(view, cx, Editor::move_to_end);
232 register_action(view, cx, Editor::select_up);
233 register_action(view, cx, Editor::select_down);
234 register_action(view, cx, Editor::select_left);
235 register_action(view, cx, Editor::select_right);
236 register_action(view, cx, Editor::select_to_previous_word_start);
237 register_action(view, cx, Editor::select_to_previous_subword_start);
238 register_action(view, cx, Editor::select_to_next_word_end);
239 register_action(view, cx, Editor::select_to_next_subword_end);
240 register_action(view, cx, Editor::select_to_beginning_of_line);
241 register_action(view, cx, Editor::select_to_end_of_line);
242 register_action(view, cx, Editor::select_to_start_of_paragraph);
243 register_action(view, cx, Editor::select_to_end_of_paragraph);
244 register_action(view, cx, Editor::select_to_beginning);
245 register_action(view, cx, Editor::select_to_end);
246 register_action(view, cx, Editor::select_all);
247 register_action(view, cx, |editor, action, cx| {
248 editor.select_all_matches(action, cx).log_err();
249 });
250 register_action(view, cx, Editor::select_line);
251 register_action(view, cx, Editor::split_selection_into_lines);
252 register_action(view, cx, Editor::add_selection_above);
253 register_action(view, cx, Editor::add_selection_below);
254 register_action(view, cx, |editor, action, cx| {
255 editor.select_next(action, cx).log_err();
256 });
257 register_action(view, cx, |editor, action, cx| {
258 editor.select_previous(action, cx).log_err();
259 });
260 register_action(view, cx, Editor::toggle_comments);
261 register_action(view, cx, Editor::select_larger_syntax_node);
262 register_action(view, cx, Editor::select_smaller_syntax_node);
263 register_action(view, cx, Editor::move_to_enclosing_bracket);
264 register_action(view, cx, Editor::undo_selection);
265 register_action(view, cx, Editor::redo_selection);
266 if !view.read(cx).is_singleton(cx) {
267 register_action(view, cx, Editor::expand_excerpts);
268 }
269 register_action(view, cx, Editor::go_to_diagnostic);
270 register_action(view, cx, Editor::go_to_prev_diagnostic);
271 register_action(view, cx, Editor::go_to_hunk);
272 register_action(view, cx, Editor::go_to_prev_hunk);
273 register_action(view, cx, |editor, a, cx| {
274 editor.go_to_definition(a, cx).detach_and_log_err(cx);
275 });
276 register_action(view, cx, |editor, a, cx| {
277 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
278 });
279 register_action(view, cx, |editor, a, cx| {
280 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
281 });
282 register_action(view, cx, |editor, a, cx| {
283 editor
284 .go_to_implementation_split(a, cx)
285 .detach_and_log_err(cx);
286 });
287 register_action(view, cx, |editor, a, cx| {
288 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
289 });
290 register_action(view, cx, |editor, a, cx| {
291 editor
292 .go_to_type_definition_split(a, cx)
293 .detach_and_log_err(cx);
294 });
295 register_action(view, cx, Editor::open_url);
296 register_action(view, cx, Editor::fold);
297 register_action(view, cx, Editor::fold_at);
298 register_action(view, cx, Editor::unfold_lines);
299 register_action(view, cx, Editor::unfold_at);
300 register_action(view, cx, Editor::fold_selected_ranges);
301 register_action(view, cx, Editor::show_completions);
302 register_action(view, cx, Editor::toggle_code_actions);
303 register_action(view, cx, Editor::open_excerpts);
304 register_action(view, cx, Editor::open_excerpts_in_split);
305 register_action(view, cx, Editor::toggle_soft_wrap);
306 register_action(view, cx, Editor::toggle_line_numbers);
307 register_action(view, cx, Editor::toggle_inlay_hints);
308 register_action(view, cx, hover_popover::hover);
309 register_action(view, cx, Editor::reveal_in_finder);
310 register_action(view, cx, Editor::copy_path);
311 register_action(view, cx, Editor::copy_relative_path);
312 register_action(view, cx, Editor::copy_highlight_json);
313 register_action(view, cx, Editor::copy_permalink_to_line);
314 register_action(view, cx, Editor::open_permalink_to_line);
315 register_action(view, cx, Editor::toggle_git_blame);
316 register_action(view, cx, Editor::toggle_git_blame_inline);
317 register_action(view, cx, Editor::toggle_hunk_diff);
318 register_action(view, cx, Editor::expand_all_hunk_diffs);
319 register_action(view, cx, |editor, action, cx| {
320 if let Some(task) = editor.format(action, cx) {
321 task.detach_and_log_err(cx);
322 } else {
323 cx.propagate();
324 }
325 });
326 register_action(view, cx, Editor::restart_language_server);
327 register_action(view, cx, Editor::show_character_palette);
328 register_action(view, cx, |editor, action, cx| {
329 if let Some(task) = editor.confirm_completion(action, cx) {
330 task.detach_and_log_err(cx);
331 } else {
332 cx.propagate();
333 }
334 });
335 register_action(view, cx, |editor, action, cx| {
336 if let Some(task) = editor.confirm_code_action(action, cx) {
337 task.detach_and_log_err(cx);
338 } else {
339 cx.propagate();
340 }
341 });
342 register_action(view, cx, |editor, action, cx| {
343 if let Some(task) = editor.rename(action, cx) {
344 task.detach_and_log_err(cx);
345 } else {
346 cx.propagate();
347 }
348 });
349 register_action(view, cx, |editor, action, cx| {
350 if let Some(task) = editor.confirm_rename(action, cx) {
351 task.detach_and_log_err(cx);
352 } else {
353 cx.propagate();
354 }
355 });
356 register_action(view, cx, |editor, action, cx| {
357 if let Some(task) = editor.find_all_references(action, cx) {
358 task.detach_and_log_err(cx);
359 } else {
360 cx.propagate();
361 }
362 });
363 register_action(view, cx, Editor::next_inline_completion);
364 register_action(view, cx, Editor::previous_inline_completion);
365 register_action(view, cx, Editor::show_inline_completion);
366 register_action(view, cx, Editor::context_menu_first);
367 register_action(view, cx, Editor::context_menu_prev);
368 register_action(view, cx, Editor::context_menu_next);
369 register_action(view, cx, Editor::context_menu_last);
370 register_action(view, cx, Editor::display_cursor_names);
371 register_action(view, cx, Editor::unique_lines_case_insensitive);
372 register_action(view, cx, Editor::unique_lines_case_sensitive);
373 register_action(view, cx, Editor::accept_partial_inline_completion);
374 register_action(view, cx, Editor::revert_selected_hunks);
375 register_action(view, cx, Editor::open_active_item_in_terminal)
376 }
377
378 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
379 let position_map = layout.position_map.clone();
380 cx.on_key_event({
381 let editor = self.editor.clone();
382 let text_hitbox = layout.text_hitbox.clone();
383 move |event: &ModifiersChangedEvent, phase, cx| {
384 if phase != DispatchPhase::Bubble {
385 return;
386 }
387
388 editor.update(cx, |editor, cx| {
389 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
390 })
391 }
392 });
393 }
394
395 fn modifiers_changed(
396 editor: &mut Editor,
397 event: &ModifiersChangedEvent,
398 position_map: &PositionMap,
399 text_hitbox: &Hitbox,
400 cx: &mut ViewContext<Editor>,
401 ) {
402 let mouse_position = cx.mouse_position();
403 if !text_hitbox.is_hovered(cx) {
404 return;
405 }
406
407 editor.update_hovered_link(
408 position_map.point_for_position(text_hitbox.bounds, mouse_position),
409 &position_map.snapshot,
410 event.modifiers,
411 cx,
412 )
413 }
414
415 fn mouse_left_down(
416 editor: &mut Editor,
417 event: &MouseDownEvent,
418 hovered_hunk: Option<&HunkToExpand>,
419 position_map: &PositionMap,
420 text_hitbox: &Hitbox,
421 gutter_hitbox: &Hitbox,
422 cx: &mut ViewContext<Editor>,
423 ) {
424 if cx.default_prevented() {
425 return;
426 }
427
428 let mut click_count = event.click_count;
429 let mut modifiers = event.modifiers;
430
431 if let Some(hovered_hunk) = hovered_hunk {
432 editor.expand_diff_hunk(None, hovered_hunk, cx);
433 cx.notify();
434 return;
435 } else if gutter_hitbox.is_hovered(cx) {
436 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
437 } else if !text_hitbox.is_hovered(cx) {
438 return;
439 }
440
441 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
442 match EditorSettings::get_global(cx).double_click_in_multibuffer {
443 DoubleClickInMultibuffer::Select => {
444 // do nothing special on double click, all selection logic is below
445 }
446 DoubleClickInMultibuffer::Open => {
447 if modifiers.alt {
448 // if double click is made with alt, pretend it's a regular double click without opening and alt,
449 // and run the selection logic.
450 modifiers.alt = false;
451 } else {
452 // if double click is made without alt, open the corresponding excerp
453 editor.open_excerpts(&OpenExcerpts, cx);
454 return;
455 }
456 }
457 }
458 }
459
460 let point_for_position =
461 position_map.point_for_position(text_hitbox.bounds, event.position);
462 let position = point_for_position.previous_valid;
463 if modifiers.shift && modifiers.alt {
464 editor.select(
465 SelectPhase::BeginColumnar {
466 position,
467 goal_column: point_for_position.exact_unclipped.column(),
468 },
469 cx,
470 );
471 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
472 {
473 editor.select(
474 SelectPhase::Extend {
475 position,
476 click_count,
477 },
478 cx,
479 );
480 } else {
481 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
482 let multi_cursor_modifier = match multi_cursor_setting {
483 MultiCursorModifier::Alt => modifiers.alt,
484 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
485 };
486 editor.select(
487 SelectPhase::Begin {
488 position,
489 add: multi_cursor_modifier,
490 click_count,
491 },
492 cx,
493 );
494 }
495
496 cx.stop_propagation();
497 }
498
499 fn mouse_right_down(
500 editor: &mut Editor,
501 event: &MouseDownEvent,
502 position_map: &PositionMap,
503 text_hitbox: &Hitbox,
504 cx: &mut ViewContext<Editor>,
505 ) {
506 if !text_hitbox.is_hovered(cx) {
507 return;
508 }
509 let point_for_position =
510 position_map.point_for_position(text_hitbox.bounds, event.position);
511 mouse_context_menu::deploy_context_menu(
512 editor,
513 event.position,
514 point_for_position.previous_valid,
515 cx,
516 );
517 cx.stop_propagation();
518 }
519
520 fn mouse_middle_down(
521 editor: &mut Editor,
522 event: &MouseDownEvent,
523 position_map: &PositionMap,
524 text_hitbox: &Hitbox,
525 cx: &mut ViewContext<Editor>,
526 ) {
527 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
528 return;
529 }
530
531 if let Some(item) = cx.read_from_primary() {
532 let point_for_position =
533 position_map.point_for_position(text_hitbox.bounds, event.position);
534 let position = point_for_position.previous_valid;
535
536 editor.select(
537 SelectPhase::Begin {
538 position,
539 add: false,
540 click_count: 1,
541 },
542 cx,
543 );
544 editor.insert(item.text(), cx);
545 }
546 }
547
548 fn mouse_up(
549 editor: &mut Editor,
550 event: &MouseUpEvent,
551 position_map: &PositionMap,
552 text_hitbox: &Hitbox,
553 cx: &mut ViewContext<Editor>,
554 ) {
555 let end_selection = editor.has_pending_selection();
556 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
557
558 if end_selection {
559 editor.select(SelectPhase::End, cx);
560 }
561
562 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
563 let multi_cursor_modifier = match multi_cursor_setting {
564 MultiCursorModifier::Alt => event.modifiers.secondary(),
565 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
566 };
567
568 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
569 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
570 editor.handle_click_hovered_link(point, event.modifiers, cx);
571
572 cx.stop_propagation();
573 } else if end_selection {
574 cx.stop_propagation();
575 }
576 }
577
578 fn mouse_dragged(
579 editor: &mut Editor,
580 event: &MouseMoveEvent,
581 position_map: &PositionMap,
582 text_bounds: Bounds<Pixels>,
583 cx: &mut ViewContext<Editor>,
584 ) {
585 if !editor.has_pending_selection() {
586 return;
587 }
588
589 let point_for_position = position_map.point_for_position(text_bounds, event.position);
590 let mut scroll_delta = gpui::Point::<f32>::default();
591 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
592 let top = text_bounds.origin.y + vertical_margin;
593 let bottom = text_bounds.lower_left().y - vertical_margin;
594 if event.position.y < top {
595 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
596 }
597 if event.position.y > bottom {
598 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
599 }
600
601 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
602 let left = text_bounds.origin.x + horizontal_margin;
603 let right = text_bounds.upper_right().x - horizontal_margin;
604 if event.position.x < left {
605 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
606 }
607 if event.position.x > right {
608 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
609 }
610
611 editor.select(
612 SelectPhase::Update {
613 position: point_for_position.previous_valid,
614 goal_column: point_for_position.exact_unclipped.column(),
615 scroll_delta,
616 },
617 cx,
618 );
619 }
620
621 fn mouse_moved(
622 editor: &mut Editor,
623 event: &MouseMoveEvent,
624 position_map: &PositionMap,
625 text_hitbox: &Hitbox,
626 gutter_hitbox: &Hitbox,
627 cx: &mut ViewContext<Editor>,
628 ) {
629 let modifiers = event.modifiers;
630 let gutter_hovered = gutter_hitbox.is_hovered(cx);
631 editor.set_gutter_hovered(gutter_hovered, cx);
632
633 // Don't trigger hover popover if mouse is hovering over context menu
634 if text_hitbox.is_hovered(cx) {
635 let point_for_position =
636 position_map.point_for_position(text_hitbox.bounds, event.position);
637
638 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
639
640 if let Some(point) = point_for_position.as_valid() {
641 hover_at(editor, Some((point, &position_map.snapshot)), cx);
642 Self::update_visible_cursor(editor, point, position_map, cx);
643 } else {
644 hover_at(editor, None, cx);
645 }
646 } else {
647 editor.hide_hovered_link(cx);
648 hover_at(editor, None, cx);
649 if gutter_hovered {
650 cx.stop_propagation();
651 }
652 }
653 }
654
655 fn update_visible_cursor(
656 editor: &mut Editor,
657 point: DisplayPoint,
658 position_map: &PositionMap,
659 cx: &mut ViewContext<Editor>,
660 ) {
661 let snapshot = &position_map.snapshot;
662 let Some(hub) = editor.collaboration_hub() else {
663 return;
664 };
665 let range = DisplayPoint::new(point.row(), point.column().saturating_sub(1))
666 ..DisplayPoint::new(
667 point.row(),
668 (point.column() + 1).min(snapshot.line_len(point.row())),
669 );
670
671 let range = snapshot
672 .buffer_snapshot
673 .anchor_at(range.start.to_point(&snapshot.display_snapshot), Bias::Left)
674 ..snapshot
675 .buffer_snapshot
676 .anchor_at(range.end.to_point(&snapshot.display_snapshot), Bias::Right);
677
678 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
679 return;
680 };
681 let key = crate::HoveredCursor {
682 replica_id: selection.replica_id,
683 selection_id: selection.selection.id,
684 };
685 editor.hovered_cursors.insert(
686 key.clone(),
687 cx.spawn(|editor, mut cx| async move {
688 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
689 editor
690 .update(&mut cx, |editor, cx| {
691 editor.hovered_cursors.remove(&key);
692 cx.notify();
693 })
694 .ok();
695 }),
696 );
697 cx.notify()
698 }
699
700 fn layout_selections(
701 &self,
702 start_anchor: Anchor,
703 end_anchor: Anchor,
704 snapshot: &EditorSnapshot,
705 start_row: u32,
706 end_row: u32,
707 cx: &mut WindowContext,
708 ) -> (
709 Vec<(PlayerColor, Vec<SelectionLayout>)>,
710 BTreeMap<u32, bool>,
711 Option<DisplayPoint>,
712 ) {
713 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
714 let mut active_rows = BTreeMap::new();
715 let mut newest_selection_head = None;
716 let editor = self.editor.read(cx);
717
718 if editor.show_local_selections {
719 let mut local_selections: Vec<Selection<Point>> = editor
720 .selections
721 .disjoint_in_range(start_anchor..end_anchor, cx);
722 local_selections.extend(editor.selections.pending(cx));
723 let mut layouts = Vec::new();
724 let newest = editor.selections.newest(cx);
725 for selection in local_selections.drain(..) {
726 let is_empty = selection.start == selection.end;
727 let is_newest = selection == newest;
728
729 let layout = SelectionLayout::new(
730 selection,
731 editor.selections.line_mode,
732 editor.cursor_shape,
733 &snapshot.display_snapshot,
734 is_newest,
735 editor.leader_peer_id.is_none(),
736 None,
737 );
738 if is_newest {
739 newest_selection_head = Some(layout.head);
740 }
741
742 for row in cmp::max(layout.active_rows.start, start_row)
743 ..=cmp::min(layout.active_rows.end, end_row)
744 {
745 let contains_non_empty_selection = active_rows.entry(row).or_insert(!is_empty);
746 *contains_non_empty_selection |= !is_empty;
747 }
748 layouts.push(layout);
749 }
750
751 let player = if editor.read_only(cx) {
752 cx.theme().players().read_only()
753 } else {
754 self.style.local_player
755 };
756
757 selections.push((player, layouts));
758 }
759
760 if let Some(collaboration_hub) = &editor.collaboration_hub {
761 // When following someone, render the local selections in their color.
762 if let Some(leader_id) = editor.leader_peer_id {
763 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
764 if let Some(participant_index) = collaboration_hub
765 .user_participant_indices(cx)
766 .get(&collaborator.user_id)
767 {
768 if let Some((local_selection_style, _)) = selections.first_mut() {
769 *local_selection_style = cx
770 .theme()
771 .players()
772 .color_for_participant(participant_index.0);
773 }
774 }
775 }
776 }
777
778 let mut remote_selections = HashMap::default();
779 for selection in snapshot.remote_selections_in_range(
780 &(start_anchor..end_anchor),
781 collaboration_hub.as_ref(),
782 cx,
783 ) {
784 let selection_style = Self::get_participant_color(selection.participant_index, cx);
785
786 // Don't re-render the leader's selections, since the local selections
787 // match theirs.
788 if Some(selection.peer_id) == editor.leader_peer_id {
789 continue;
790 }
791 let key = HoveredCursor {
792 replica_id: selection.replica_id,
793 selection_id: selection.selection.id,
794 };
795
796 let is_shown =
797 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
798
799 remote_selections
800 .entry(selection.replica_id)
801 .or_insert((selection_style, Vec::new()))
802 .1
803 .push(SelectionLayout::new(
804 selection.selection,
805 selection.line_mode,
806 selection.cursor_shape,
807 &snapshot.display_snapshot,
808 false,
809 false,
810 if is_shown { selection.user_name } else { None },
811 ));
812 }
813
814 selections.extend(remote_selections.into_values());
815 }
816 (selections, active_rows, newest_selection_head)
817 }
818
819 #[allow(clippy::too_many_arguments)]
820 fn layout_folds(
821 &self,
822 snapshot: &EditorSnapshot,
823 content_origin: gpui::Point<Pixels>,
824 visible_anchor_range: Range<Anchor>,
825 visible_display_row_range: Range<u32>,
826 scroll_pixel_position: gpui::Point<Pixels>,
827 line_height: Pixels,
828 line_layouts: &[LineWithInvisibles],
829 cx: &mut WindowContext,
830 ) -> Vec<FoldLayout> {
831 snapshot
832 .folds_in_range(visible_anchor_range.clone())
833 .filter_map(|fold| {
834 let fold_range = fold.range.clone();
835 let display_range = fold.range.start.to_display_point(&snapshot)
836 ..fold.range.end.to_display_point(&snapshot);
837 debug_assert_eq!(display_range.start.row(), display_range.end.row());
838 let row = display_range.start.row();
839 debug_assert!(row < visible_display_row_range.end);
840 let line_layout = line_layouts
841 .get((row - visible_display_row_range.start) as usize)
842 .map(|l| &l.line)?;
843
844 let start_x = content_origin.x
845 + line_layout.x_for_index(display_range.start.column() as usize)
846 - scroll_pixel_position.x;
847 let start_y = content_origin.y + row as f32 * line_height - scroll_pixel_position.y;
848 let end_x = content_origin.x
849 + line_layout.x_for_index(display_range.end.column() as usize)
850 - scroll_pixel_position.x;
851
852 let fold_bounds = Bounds {
853 origin: point(start_x, start_y),
854 size: size(end_x - start_x, line_height),
855 };
856
857 let mut hover_element = div()
858 .id(fold.id)
859 .size_full()
860 .cursor_pointer()
861 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
862 .on_click(
863 cx.listener_for(&self.editor, move |editor: &mut Editor, _, cx| {
864 editor.unfold_ranges(
865 [fold_range.start..fold_range.end],
866 true,
867 false,
868 cx,
869 );
870 cx.stop_propagation();
871 }),
872 )
873 .into_any();
874 hover_element.prepaint_as_root(fold_bounds.origin, fold_bounds.size.into(), cx);
875 Some(FoldLayout {
876 display_range,
877 hover_element,
878 })
879 })
880 .collect()
881 }
882
883 fn collect_cursors(
884 &self,
885 snapshot: &EditorSnapshot,
886 cx: &mut WindowContext,
887 ) -> Vec<(DisplayPoint, Hsla)> {
888 let editor = self.editor.read(cx);
889 let mut cursors = Vec::new();
890 let mut skip_local = false;
891 let mut add_cursor = |anchor: Anchor, color| {
892 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
893 };
894 // Remote cursors
895 if let Some(collaboration_hub) = &editor.collaboration_hub {
896 for remote_selection in snapshot.remote_selections_in_range(
897 &(Anchor::min()..Anchor::max()),
898 collaboration_hub.deref(),
899 cx,
900 ) {
901 let color = Self::get_participant_color(remote_selection.participant_index, cx);
902 add_cursor(remote_selection.selection.head(), color.cursor);
903 if Some(remote_selection.peer_id) == editor.leader_peer_id {
904 skip_local = true;
905 }
906 }
907 }
908 // Local cursors
909 if !skip_local {
910 let color = cx.theme().players().local().cursor;
911 editor.selections.disjoint.iter().for_each(|selection| {
912 add_cursor(selection.head(), color);
913 });
914 if let Some(ref selection) = editor.selections.pending_anchor() {
915 add_cursor(selection.head(), color);
916 }
917 }
918 cursors
919 }
920
921 #[allow(clippy::too_many_arguments)]
922 fn layout_visible_cursors(
923 &self,
924 snapshot: &EditorSnapshot,
925 selections: &[(PlayerColor, Vec<SelectionLayout>)],
926 visible_display_row_range: Range<u32>,
927 line_layouts: &[LineWithInvisibles],
928 text_hitbox: &Hitbox,
929 content_origin: gpui::Point<Pixels>,
930 scroll_position: gpui::Point<f32>,
931 scroll_pixel_position: gpui::Point<Pixels>,
932 line_height: Pixels,
933 em_width: Pixels,
934 autoscroll_containing_element: bool,
935 cx: &mut WindowContext,
936 ) -> Vec<CursorLayout> {
937 let mut autoscroll_bounds = None;
938 let cursor_layouts = self.editor.update(cx, |editor, cx| {
939 let mut cursors = Vec::new();
940 for (player_color, selections) in selections {
941 for selection in selections {
942 let cursor_position = selection.head;
943
944 let in_range = visible_display_row_range.contains(&cursor_position.row());
945 if (selection.is_local && !editor.show_local_cursors(cx)) || !in_range {
946 continue;
947 }
948
949 let cursor_row_layout = &line_layouts
950 [(cursor_position.row() - visible_display_row_range.start) as usize]
951 .line;
952 let cursor_column = cursor_position.column() as usize;
953
954 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
955 let mut block_width =
956 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
957 if block_width == Pixels::ZERO {
958 block_width = em_width;
959 }
960 let block_text = if let CursorShape::Block = selection.cursor_shape {
961 snapshot.display_chars_at(cursor_position).next().and_then(
962 |(character, _)| {
963 let text = if character == '\n' {
964 SharedString::from(" ")
965 } else {
966 SharedString::from(character.to_string())
967 };
968 let len = text.len();
969
970 let font = cursor_row_layout
971 .font_id_for_index(cursor_column)
972 .and_then(|cursor_font_id| {
973 cx.text_system().get_font_for_id(cursor_font_id)
974 })
975 .unwrap_or(self.style.text.font());
976
977 cx.text_system()
978 .shape_line(
979 text,
980 cursor_row_layout.font_size,
981 &[TextRun {
982 len,
983 font,
984 color: self.style.background,
985 background_color: None,
986 strikethrough: None,
987 underline: None,
988 }],
989 )
990 .log_err()
991 },
992 )
993 } else {
994 None
995 };
996
997 let x = cursor_character_x - scroll_pixel_position.x;
998 let y = (cursor_position.row() as f32 - scroll_pixel_position.y / line_height)
999 * line_height;
1000 if selection.is_newest {
1001 editor.pixel_position_of_newest_cursor = Some(point(
1002 text_hitbox.origin.x + x + block_width / 2.,
1003 text_hitbox.origin.y + y + line_height / 2.,
1004 ));
1005
1006 if autoscroll_containing_element {
1007 let top = text_hitbox.origin.y
1008 + (cursor_position.row() as f32 - scroll_position.y - 3.).max(0.)
1009 * line_height;
1010 let left = text_hitbox.origin.x
1011 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1012 .max(0.)
1013 * em_width;
1014
1015 let bottom = text_hitbox.origin.y
1016 + (cursor_position.row() as f32 - scroll_position.y + 4.)
1017 * line_height;
1018 let right = text_hitbox.origin.x
1019 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1020 * em_width;
1021
1022 autoscroll_bounds =
1023 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1024 }
1025 }
1026
1027 let mut cursor = CursorLayout {
1028 color: player_color.cursor,
1029 block_width,
1030 origin: point(x, y),
1031 line_height,
1032 shape: selection.cursor_shape,
1033 block_text,
1034 cursor_name: None,
1035 };
1036 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1037 string: name,
1038 color: self.style.background,
1039 is_top_row: cursor_position.row() == 0,
1040 });
1041 cursor.layout(content_origin, cursor_name, cx);
1042 cursors.push(cursor);
1043 }
1044 }
1045 cursors
1046 });
1047
1048 if let Some(bounds) = autoscroll_bounds {
1049 cx.request_autoscroll(bounds);
1050 }
1051
1052 cursor_layouts
1053 }
1054
1055 fn layout_scrollbar(
1056 &self,
1057 snapshot: &EditorSnapshot,
1058 bounds: Bounds<Pixels>,
1059 scroll_position: gpui::Point<f32>,
1060 rows_per_page: f32,
1061 non_visible_cursors: bool,
1062 cx: &mut WindowContext,
1063 ) -> Option<ScrollbarLayout> {
1064 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1065 let show_scrollbars = match scrollbar_settings.show {
1066 ShowScrollbar::Auto => {
1067 let editor = self.editor.read(cx);
1068 let is_singleton = editor.is_singleton(cx);
1069 // Git
1070 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1071 ||
1072 // Buffer Search Results
1073 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1074 ||
1075 // Selected Symbol Occurrences
1076 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1077 ||
1078 // Diagnostics
1079 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1080 ||
1081 // Cursors out of sight
1082 non_visible_cursors
1083 ||
1084 // Scrollmanager
1085 editor.scroll_manager.scrollbars_visible()
1086 }
1087 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1088 ShowScrollbar::Always => true,
1089 ShowScrollbar::Never => false,
1090 };
1091 if snapshot.mode != EditorMode::Full {
1092 return None;
1093 }
1094
1095 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1096
1097 // If a drag took place after we started dragging the scrollbar,
1098 // cancel the scrollbar drag.
1099 if cx.has_active_drag() {
1100 self.editor.update(cx, |editor, cx| {
1101 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1102 });
1103 }
1104
1105 let track_bounds = Bounds::from_corners(
1106 point(self.scrollbar_left(&bounds), bounds.origin.y),
1107 point(bounds.lower_right().x, bounds.lower_left().y),
1108 );
1109
1110 let height = bounds.size.height;
1111 let total_rows = snapshot.max_point().row() as f32 + rows_per_page;
1112 let px_per_row = height / total_rows;
1113 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1114 let row_height = (height - thumb_height) / snapshot.max_point().row() as f32;
1115
1116 Some(ScrollbarLayout {
1117 hitbox: cx.insert_hitbox(track_bounds, false),
1118 visible_row_range,
1119 row_height,
1120 visible: show_scrollbars,
1121 thumb_height,
1122 })
1123 }
1124
1125 #[allow(clippy::too_many_arguments)]
1126 fn layout_gutter_fold_indicators(
1127 &self,
1128 fold_statuses: Vec<Option<(FoldStatus, u32, bool)>>,
1129 line_height: Pixels,
1130 gutter_dimensions: &GutterDimensions,
1131 gutter_settings: crate::editor_settings::Gutter,
1132 scroll_pixel_position: gpui::Point<Pixels>,
1133 gutter_hitbox: &Hitbox,
1134 cx: &mut WindowContext,
1135 ) -> Vec<Option<AnyElement>> {
1136 let mut indicators = self.editor.update(cx, |editor, cx| {
1137 editor.render_fold_indicators(
1138 fold_statuses,
1139 &self.style,
1140 editor.gutter_hovered,
1141 line_height,
1142 gutter_dimensions.margin,
1143 cx,
1144 )
1145 });
1146
1147 for (ix, fold_indicator) in indicators.iter_mut().enumerate() {
1148 if let Some(fold_indicator) = fold_indicator {
1149 debug_assert!(gutter_settings.folds);
1150 let available_space = size(
1151 AvailableSpace::MinContent,
1152 AvailableSpace::Definite(line_height * 0.55),
1153 );
1154 let fold_indicator_size = fold_indicator.layout_as_root(available_space, cx);
1155
1156 let position = point(
1157 gutter_dimensions.width - gutter_dimensions.right_padding,
1158 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1159 );
1160 let centering_offset = point(
1161 (gutter_dimensions.right_padding + gutter_dimensions.margin
1162 - fold_indicator_size.width)
1163 / 2.,
1164 (line_height - fold_indicator_size.height) / 2.,
1165 );
1166 let origin = gutter_hitbox.origin + position + centering_offset;
1167 fold_indicator.prepaint_as_root(origin, available_space, cx);
1168 }
1169 }
1170
1171 indicators
1172 }
1173
1174 // Folds contained in a hunk are ignored apart from shrinking visual size
1175 // If a fold contains any hunks then that fold line is marked as modified
1176 fn layout_git_gutters(
1177 &self,
1178 line_height: Pixels,
1179 gutter_hitbox: &Hitbox,
1180 display_rows: Range<u32>,
1181 snapshot: &EditorSnapshot,
1182 cx: &mut WindowContext,
1183 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1184 let buffer_snapshot = &snapshot.buffer_snapshot;
1185
1186 let buffer_start_row = DisplayPoint::new(display_rows.start, 0)
1187 .to_point(snapshot)
1188 .row;
1189 let buffer_end_row = DisplayPoint::new(display_rows.end, 0)
1190 .to_point(snapshot)
1191 .row;
1192
1193 let expanded_hunk_display_rows = self.editor.update(cx, |editor, _| {
1194 editor
1195 .expanded_hunks
1196 .hunks(false)
1197 .map(|expanded_hunk| {
1198 let start_row = expanded_hunk
1199 .hunk_range
1200 .start
1201 .to_display_point(snapshot)
1202 .row();
1203 let end_row = expanded_hunk
1204 .hunk_range
1205 .end
1206 .to_display_point(snapshot)
1207 .row();
1208 (start_row, end_row)
1209 })
1210 .collect::<HashMap<_, _>>()
1211 });
1212
1213 buffer_snapshot
1214 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1215 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
1216 .dedup()
1217 .map(|hunk| {
1218 let hitbox = if let DisplayDiffHunk::Unfolded {
1219 display_row_range, ..
1220 } = &hunk
1221 {
1222 let was_expanded = expanded_hunk_display_rows
1223 .get(&display_row_range.start)
1224 .map(|expanded_end_row| expanded_end_row == &display_row_range.end)
1225 .unwrap_or(false);
1226 if was_expanded {
1227 None
1228 } else {
1229 let hunk_bounds = Self::diff_hunk_bounds(
1230 &snapshot,
1231 line_height,
1232 gutter_hitbox.bounds,
1233 &hunk,
1234 );
1235 Some(cx.insert_hitbox(hunk_bounds, true))
1236 }
1237 } else {
1238 None
1239 };
1240 (hunk, hitbox)
1241 })
1242 .collect()
1243 }
1244
1245 #[allow(clippy::too_many_arguments)]
1246 fn layout_inline_blame(
1247 &self,
1248 display_row: u32,
1249 display_snapshot: &DisplaySnapshot,
1250 line_layout: &LineWithInvisibles,
1251 em_width: Pixels,
1252 content_origin: gpui::Point<Pixels>,
1253 scroll_pixel_position: gpui::Point<Pixels>,
1254 line_height: Pixels,
1255 cx: &mut WindowContext,
1256 ) -> Option<AnyElement> {
1257 if !self
1258 .editor
1259 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1260 {
1261 return None;
1262 }
1263
1264 let workspace = self
1265 .editor
1266 .read(cx)
1267 .workspace
1268 .as_ref()
1269 .map(|(w, _)| w.clone());
1270
1271 let display_point = DisplayPoint::new(display_row, 0);
1272 let buffer_row = display_point.to_point(display_snapshot).row;
1273
1274 let blame = self.editor.read(cx).blame.clone()?;
1275 let blame_entry = blame
1276 .update(cx, |blame, cx| {
1277 blame.blame_for_rows([Some(buffer_row)], cx).next()
1278 })
1279 .flatten()?;
1280
1281 let mut element =
1282 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1283
1284 let start_y = content_origin.y
1285 + line_height * (display_row as f32 - scroll_pixel_position.y / line_height);
1286
1287 let start_x = {
1288 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1289
1290 let padded_line_width =
1291 line_layout.line.width + (em_width * INLINE_BLAME_PADDING_EM_WIDTHS);
1292
1293 let min_column = ProjectSettings::get_global(cx)
1294 .git
1295 .inline_blame
1296 .and_then(|settings| settings.min_column)
1297 .map(|col| self.column_pixels(col as usize, cx))
1298 .unwrap_or(px(0.));
1299
1300 (content_origin.x - scroll_pixel_position.x) + max(padded_line_width, min_column)
1301 };
1302
1303 let absolute_offset = point(start_x, start_y);
1304 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1305
1306 element.prepaint_as_root(absolute_offset, available_space, cx);
1307
1308 Some(element)
1309 }
1310
1311 #[allow(clippy::too_many_arguments)]
1312 fn layout_blame_entries(
1313 &self,
1314 buffer_rows: impl Iterator<Item = Option<u32>>,
1315 em_width: Pixels,
1316 scroll_position: gpui::Point<f32>,
1317 line_height: Pixels,
1318 gutter_hitbox: &Hitbox,
1319 max_width: Option<Pixels>,
1320 cx: &mut WindowContext,
1321 ) -> Option<Vec<AnyElement>> {
1322 if !self
1323 .editor
1324 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1325 {
1326 return None;
1327 }
1328
1329 let blame = self.editor.read(cx).blame.clone()?;
1330 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1331 blame.blame_for_rows(buffer_rows, cx).collect()
1332 });
1333
1334 let width = if let Some(max_width) = max_width {
1335 AvailableSpace::Definite(max_width)
1336 } else {
1337 AvailableSpace::MaxContent
1338 };
1339 let scroll_top = scroll_position.y * line_height;
1340 let start_x = em_width * 1;
1341
1342 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1343
1344 let shaped_lines = blamed_rows
1345 .into_iter()
1346 .enumerate()
1347 .flat_map(|(ix, blame_entry)| {
1348 if let Some(blame_entry) = blame_entry {
1349 let mut element = render_blame_entry(
1350 ix,
1351 &blame,
1352 blame_entry,
1353 &self.style,
1354 &mut last_used_color,
1355 self.editor.clone(),
1356 cx,
1357 );
1358
1359 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1360 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1361
1362 element.prepaint_as_root(
1363 absolute_offset,
1364 size(width, AvailableSpace::MinContent),
1365 cx,
1366 );
1367
1368 Some(element)
1369 } else {
1370 None
1371 }
1372 })
1373 .collect();
1374
1375 Some(shaped_lines)
1376 }
1377
1378 fn layout_run_indicators(
1379 &self,
1380 line_height: Pixels,
1381 scroll_pixel_position: gpui::Point<Pixels>,
1382 gutter_dimensions: &GutterDimensions,
1383 gutter_hitbox: &Hitbox,
1384 cx: &mut WindowContext,
1385 ) -> Vec<AnyElement> {
1386 self.editor.update(cx, |editor, cx| {
1387 let active_task_indicator_row =
1388 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1389 deployed_from_indicator,
1390 actions,
1391 ..
1392 })) = editor.context_menu.read().as_ref()
1393 {
1394 actions
1395 .tasks
1396 .as_ref()
1397 .map(|tasks| tasks.position.row)
1398 .or_else(|| *deployed_from_indicator)
1399 } else {
1400 None
1401 };
1402 editor
1403 .tasks
1404 .keys()
1405 .map(|row| {
1406 let button = editor.render_run_indicator(
1407 &self.style,
1408 Some(*row) == active_task_indicator_row,
1409 *row,
1410 cx,
1411 );
1412
1413 let button = prepaint_gutter_button(
1414 button,
1415 *row,
1416 line_height,
1417 gutter_dimensions,
1418 scroll_pixel_position,
1419 gutter_hitbox,
1420 cx,
1421 );
1422 button
1423 })
1424 .collect_vec()
1425 })
1426 }
1427
1428 fn layout_code_actions_indicator(
1429 &self,
1430 line_height: Pixels,
1431 newest_selection_head: DisplayPoint,
1432 scroll_pixel_position: gpui::Point<Pixels>,
1433 gutter_dimensions: &GutterDimensions,
1434 gutter_hitbox: &Hitbox,
1435 cx: &mut WindowContext,
1436 ) -> Option<AnyElement> {
1437 let mut active = false;
1438 let mut button = None;
1439 let row = newest_selection_head.row();
1440 self.editor.update(cx, |editor, cx| {
1441 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1442 deployed_from_indicator,
1443 ..
1444 })) = editor.context_menu.read().as_ref()
1445 {
1446 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1447 };
1448 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1449 });
1450
1451 let button = prepaint_gutter_button(
1452 button?,
1453 row,
1454 line_height,
1455 gutter_dimensions,
1456 scroll_pixel_position,
1457 gutter_hitbox,
1458 cx,
1459 );
1460
1461 Some(button)
1462 }
1463
1464 fn get_participant_color(
1465 participant_index: Option<ParticipantIndex>,
1466 cx: &WindowContext,
1467 ) -> PlayerColor {
1468 if let Some(index) = participant_index {
1469 cx.theme().players().color_for_participant(index.0)
1470 } else {
1471 cx.theme().players().absent()
1472 }
1473 }
1474
1475 fn calculate_relative_line_numbers(
1476 &self,
1477 snapshot: &EditorSnapshot,
1478 rows: &Range<u32>,
1479 relative_to: Option<u32>,
1480 ) -> HashMap<u32, u32> {
1481 let mut relative_rows: HashMap<u32, u32> = Default::default();
1482 let Some(relative_to) = relative_to else {
1483 return relative_rows;
1484 };
1485
1486 let start = rows.start.min(relative_to);
1487 let end = rows.end.max(relative_to);
1488
1489 let buffer_rows = snapshot
1490 .buffer_rows(start)
1491 .take(1 + (end - start) as usize)
1492 .collect::<Vec<_>>();
1493
1494 let head_idx = relative_to - start;
1495 let mut delta = 1;
1496 let mut i = head_idx + 1;
1497 while i < buffer_rows.len() as u32 {
1498 if buffer_rows[i as usize].is_some() {
1499 if rows.contains(&(i + start)) {
1500 relative_rows.insert(i + start, delta);
1501 }
1502 delta += 1;
1503 }
1504 i += 1;
1505 }
1506 delta = 1;
1507 i = head_idx.min(buffer_rows.len() as u32 - 1);
1508 while i > 0 && buffer_rows[i as usize].is_none() {
1509 i -= 1;
1510 }
1511
1512 while i > 0 {
1513 i -= 1;
1514 if buffer_rows[i as usize].is_some() {
1515 if rows.contains(&(i + start)) {
1516 relative_rows.insert(i + start, delta);
1517 }
1518 delta += 1;
1519 }
1520 }
1521
1522 relative_rows
1523 }
1524
1525 fn layout_line_numbers(
1526 &self,
1527 rows: Range<u32>,
1528 buffer_rows: impl Iterator<Item = Option<u32>>,
1529 active_rows: &BTreeMap<u32, bool>,
1530 newest_selection_head: Option<DisplayPoint>,
1531 snapshot: &EditorSnapshot,
1532 cx: &WindowContext,
1533 ) -> (
1534 Vec<Option<ShapedLine>>,
1535 Vec<Option<(FoldStatus, BufferRow, bool)>>,
1536 ) {
1537 let editor = self.editor.read(cx);
1538 let is_singleton = editor.is_singleton(cx);
1539 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1540 let newest = editor.selections.newest::<Point>(cx);
1541 SelectionLayout::new(
1542 newest,
1543 editor.selections.line_mode,
1544 editor.cursor_shape,
1545 &snapshot.display_snapshot,
1546 true,
1547 true,
1548 None,
1549 )
1550 .head
1551 });
1552 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1553 let include_line_numbers =
1554 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full;
1555 let include_fold_statuses =
1556 EditorSettings::get_global(cx).gutter.folds && snapshot.mode == EditorMode::Full;
1557 let mut shaped_line_numbers = Vec::with_capacity(rows.len());
1558 let mut fold_statuses = Vec::with_capacity(rows.len());
1559 let mut line_number = String::new();
1560 let is_relative = EditorSettings::get_global(cx).relative_line_numbers;
1561 let relative_to = if is_relative {
1562 Some(newest_selection_head.row())
1563 } else {
1564 None
1565 };
1566
1567 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1568
1569 for (ix, row) in buffer_rows.into_iter().enumerate() {
1570 let display_row = rows.start + ix as u32;
1571 let (active, color) = if active_rows.contains_key(&display_row) {
1572 (true, cx.theme().colors().editor_active_line_number)
1573 } else {
1574 (false, cx.theme().colors().editor_line_number)
1575 };
1576 if let Some(buffer_row) = row {
1577 if include_line_numbers {
1578 line_number.clear();
1579 let default_number = buffer_row + 1;
1580 let number = relative_rows
1581 .get(&(ix as u32 + rows.start))
1582 .unwrap_or(&default_number);
1583 write!(&mut line_number, "{}", number).unwrap();
1584 let run = TextRun {
1585 len: line_number.len(),
1586 font: self.style.text.font(),
1587 color,
1588 background_color: None,
1589 underline: None,
1590 strikethrough: None,
1591 };
1592 let shaped_line = cx
1593 .text_system()
1594 .shape_line(line_number.clone().into(), font_size, &[run])
1595 .unwrap();
1596 shaped_line_numbers.push(Some(shaped_line));
1597 }
1598 if include_fold_statuses {
1599 fold_statuses.push(
1600 is_singleton
1601 .then(|| {
1602 snapshot
1603 .fold_for_line(buffer_row)
1604 .map(|fold_status| (fold_status, buffer_row, active))
1605 })
1606 .flatten(),
1607 )
1608 }
1609 } else {
1610 fold_statuses.push(None);
1611 shaped_line_numbers.push(None);
1612 }
1613 }
1614
1615 (shaped_line_numbers, fold_statuses)
1616 }
1617
1618 fn layout_lines(
1619 &self,
1620 rows: Range<u32>,
1621 line_number_layouts: &[Option<ShapedLine>],
1622 snapshot: &EditorSnapshot,
1623 cx: &WindowContext,
1624 ) -> Vec<LineWithInvisibles> {
1625 if rows.start >= rows.end {
1626 return Vec::new();
1627 }
1628
1629 // Show the placeholder when the editor is empty
1630 if snapshot.is_empty() {
1631 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1632 let placeholder_color = cx.theme().colors().text_placeholder;
1633 let placeholder_text = snapshot.placeholder_text();
1634
1635 let placeholder_lines = placeholder_text
1636 .as_ref()
1637 .map_or("", AsRef::as_ref)
1638 .split('\n')
1639 .skip(rows.start as usize)
1640 .chain(iter::repeat(""))
1641 .take(rows.len());
1642 placeholder_lines
1643 .filter_map(move |line| {
1644 let run = TextRun {
1645 len: line.len(),
1646 font: self.style.text.font(),
1647 color: placeholder_color,
1648 background_color: None,
1649 underline: Default::default(),
1650 strikethrough: None,
1651 };
1652 cx.text_system()
1653 .shape_line(line.to_string().into(), font_size, &[run])
1654 .log_err()
1655 })
1656 .map(|line| LineWithInvisibles {
1657 line,
1658 invisibles: Vec::new(),
1659 })
1660 .collect()
1661 } else {
1662 let chunks = snapshot.highlighted_chunks(rows.clone(), true, &self.style);
1663 LineWithInvisibles::from_chunks(
1664 chunks,
1665 &self.style.text,
1666 MAX_LINE_LEN,
1667 rows.len(),
1668 line_number_layouts,
1669 snapshot.mode,
1670 cx,
1671 )
1672 }
1673 }
1674
1675 #[allow(clippy::too_many_arguments)]
1676 fn build_blocks(
1677 &self,
1678 rows: Range<u32>,
1679 snapshot: &EditorSnapshot,
1680 hitbox: &Hitbox,
1681 text_hitbox: &Hitbox,
1682 scroll_width: &mut Pixels,
1683 gutter_dimensions: &GutterDimensions,
1684 em_width: Pixels,
1685 text_x: Pixels,
1686 line_height: Pixels,
1687 line_layouts: &[LineWithInvisibles],
1688 cx: &mut WindowContext,
1689 ) -> Vec<BlockLayout> {
1690 let mut block_id = 0;
1691 let (fixed_blocks, non_fixed_blocks) = snapshot
1692 .blocks_in_range(rows.clone())
1693 .partition::<Vec<_>, _>(|(_, block)| match block {
1694 TransformBlock::ExcerptHeader { .. } => false,
1695 TransformBlock::Custom(block) => block.style() == BlockStyle::Fixed,
1696 });
1697
1698 let render_block = |block: &TransformBlock,
1699 available_space: Size<AvailableSpace>,
1700 block_id: usize,
1701 block_row_start: u32,
1702 cx: &mut WindowContext| {
1703 let mut element = match block {
1704 TransformBlock::Custom(block) => {
1705 let align_to = block
1706 .position()
1707 .to_point(&snapshot.buffer_snapshot)
1708 .to_display_point(snapshot);
1709 let anchor_x = text_x
1710 + if rows.contains(&align_to.row()) {
1711 line_layouts[(align_to.row() - rows.start) as usize]
1712 .line
1713 .x_for_index(align_to.column() as usize)
1714 } else {
1715 layout_line(align_to.row(), snapshot, &self.style, cx)
1716 .unwrap()
1717 .x_for_index(align_to.column() as usize)
1718 };
1719
1720 block.render(&mut BlockContext {
1721 context: cx,
1722 anchor_x,
1723 gutter_dimensions,
1724 line_height,
1725 em_width,
1726 block_id,
1727 max_width: text_hitbox.size.width.max(*scroll_width),
1728 editor_style: &self.style,
1729 })
1730 }
1731
1732 TransformBlock::ExcerptHeader {
1733 buffer,
1734 range,
1735 starts_new_buffer,
1736 height,
1737 id,
1738 ..
1739 } => {
1740 let include_root = self
1741 .editor
1742 .read(cx)
1743 .project
1744 .as_ref()
1745 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
1746 .unwrap_or_default();
1747
1748 #[derive(Clone)]
1749 struct JumpData {
1750 position: Point,
1751 anchor: text::Anchor,
1752 path: ProjectPath,
1753 line_offset_from_top: u32,
1754 }
1755
1756 let jump_data = project::File::from_dyn(buffer.file()).map(|file| {
1757 let jump_path = ProjectPath {
1758 worktree_id: file.worktree_id(cx),
1759 path: file.path.clone(),
1760 };
1761 let jump_anchor = range
1762 .primary
1763 .as_ref()
1764 .map_or(range.context.start, |primary| primary.start);
1765
1766 let excerpt_start = range.context.start;
1767 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
1768 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
1769 0
1770 } else {
1771 let excerpt_start_row =
1772 language::ToPoint::to_point(&jump_anchor, buffer).row;
1773 jump_position.row - excerpt_start_row
1774 };
1775
1776 let line_offset_from_top =
1777 block_row_start + *height as u32 + offset_from_excerpt_start
1778 - snapshot
1779 .scroll_anchor
1780 .scroll_position(&snapshot.display_snapshot)
1781 .y as u32;
1782
1783 JumpData {
1784 position: jump_position,
1785 anchor: jump_anchor,
1786 path: jump_path,
1787 line_offset_from_top,
1788 }
1789 });
1790
1791 let element = if *starts_new_buffer {
1792 let path = buffer.resolve_file_path(cx, include_root);
1793 let mut filename = None;
1794 let mut parent_path = None;
1795 // Can't use .and_then() because `.file_name()` and `.parent()` return references :(
1796 if let Some(path) = path {
1797 filename = path.file_name().map(|f| f.to_string_lossy().to_string());
1798 parent_path = path
1799 .parent()
1800 .map(|p| SharedString::from(p.to_string_lossy().to_string() + "/"));
1801 }
1802
1803 v_flex()
1804 .id(("path header container", block_id))
1805 .size_full()
1806 .justify_center()
1807 .p(gpui::px(6.))
1808 .child(
1809 h_flex()
1810 .id("path header block")
1811 .size_full()
1812 .pl(gpui::px(12.))
1813 .pr(gpui::px(8.))
1814 .rounded_md()
1815 .shadow_md()
1816 .border_1()
1817 .border_color(cx.theme().colors().border)
1818 .bg(cx.theme().colors().editor_subheader_background)
1819 .justify_between()
1820 .hover(|style| style.bg(cx.theme().colors().element_hover))
1821 .child(
1822 h_flex().gap_3().child(
1823 h_flex()
1824 .gap_2()
1825 .child(
1826 filename
1827 .map(SharedString::from)
1828 .unwrap_or_else(|| "untitled".into()),
1829 )
1830 .when_some(parent_path, |then, path| {
1831 then.child(
1832 div().child(path).text_color(
1833 cx.theme().colors().text_muted,
1834 ),
1835 )
1836 }),
1837 ),
1838 )
1839 .when_some(jump_data.clone(), |this, jump_data| {
1840 this.cursor_pointer()
1841 .tooltip(|cx| {
1842 Tooltip::for_action(
1843 "Jump to File",
1844 &OpenExcerpts,
1845 cx,
1846 )
1847 })
1848 .on_mouse_down(MouseButton::Left, |_, cx| {
1849 cx.stop_propagation()
1850 })
1851 .on_click(cx.listener_for(&self.editor, {
1852 move |editor, _, cx| {
1853 editor.jump(
1854 jump_data.path.clone(),
1855 jump_data.position,
1856 jump_data.anchor,
1857 jump_data.line_offset_from_top,
1858 cx,
1859 );
1860 }
1861 }))
1862 }),
1863 )
1864 } else {
1865 v_flex()
1866 .id(("collapsed context", block_id))
1867 .size_full()
1868 .child(
1869 div()
1870 .flex()
1871 .v_flex()
1872 .justify_start()
1873 .id("jump to collapsed context")
1874 .w(relative(1.0))
1875 .h_full()
1876 .child(
1877 div()
1878 .h_px()
1879 .w_full()
1880 .bg(cx.theme().colors().border_variant)
1881 .group_hover("excerpt-jump-action", |style| {
1882 style.bg(cx.theme().colors().border)
1883 }),
1884 ),
1885 )
1886 .child(
1887 h_flex()
1888 .justify_end()
1889 .flex_none()
1890 .w(
1891 gutter_dimensions.width - (gutter_dimensions.left_padding), // + gutter_dimensions.right_padding)
1892 )
1893 .h_full()
1894 .child(
1895 ButtonLike::new("expand-icon")
1896 .style(ButtonStyle::Transparent)
1897 .child(
1898 svg()
1899 .path(IconName::ExpandVertical.path())
1900 .size(IconSize::XSmall.rems())
1901 .text_color(
1902 cx.theme().colors().editor_line_number,
1903 )
1904 .group("")
1905 .hover(|style| {
1906 style.text_color(
1907 cx.theme()
1908 .colors()
1909 .editor_active_line_number,
1910 )
1911 }),
1912 )
1913 .on_click(cx.listener_for(&self.editor, {
1914 let id = *id;
1915 move |editor, _, cx| {
1916 editor.expand_excerpt(id, cx);
1917 }
1918 }))
1919 .tooltip({
1920 move |cx| {
1921 Tooltip::for_action(
1922 "Expand Excerpt",
1923 &ExpandExcerpts { lines: 0 },
1924 cx,
1925 )
1926 }
1927 }),
1928 ),
1929 )
1930 .group("excerpt-jump-action")
1931 .cursor_pointer()
1932 .when_some(jump_data.clone(), |this, jump_data| {
1933 this.on_click(cx.listener_for(&self.editor, {
1934 let path = jump_data.path.clone();
1935 move |editor, _, cx| {
1936 cx.stop_propagation();
1937
1938 editor.jump(
1939 path.clone(),
1940 jump_data.position,
1941 jump_data.anchor,
1942 jump_data.line_offset_from_top,
1943 cx,
1944 );
1945 }
1946 }))
1947 .tooltip(move |cx| {
1948 Tooltip::for_action(
1949 format!(
1950 "Jump to {}:L{}",
1951 jump_data.path.path.display(),
1952 jump_data.position.row + 1
1953 ),
1954 &OpenExcerpts,
1955 cx,
1956 )
1957 })
1958 })
1959 };
1960 element.into_any()
1961 }
1962 };
1963
1964 let size = element.layout_as_root(available_space, cx);
1965 (element, size)
1966 };
1967
1968 let mut fixed_block_max_width = Pixels::ZERO;
1969 let mut blocks = Vec::new();
1970 for (row, block) in fixed_blocks {
1971 let available_space = size(
1972 AvailableSpace::MinContent,
1973 AvailableSpace::Definite(block.height() as f32 * line_height),
1974 );
1975 let (element, element_size) = render_block(block, available_space, block_id, row, cx);
1976 block_id += 1;
1977 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
1978 blocks.push(BlockLayout {
1979 row,
1980 element,
1981 available_space,
1982 style: BlockStyle::Fixed,
1983 });
1984 }
1985 for (row, block) in non_fixed_blocks {
1986 let style = match block {
1987 TransformBlock::Custom(block) => block.style(),
1988 TransformBlock::ExcerptHeader { .. } => BlockStyle::Sticky,
1989 };
1990 let width = match style {
1991 BlockStyle::Sticky => hitbox.size.width,
1992 BlockStyle::Flex => hitbox
1993 .size
1994 .width
1995 .max(fixed_block_max_width)
1996 .max(gutter_dimensions.width + *scroll_width),
1997 BlockStyle::Fixed => unreachable!(),
1998 };
1999 let available_space = size(
2000 AvailableSpace::Definite(width),
2001 AvailableSpace::Definite(block.height() as f32 * line_height),
2002 );
2003 let (element, _) = render_block(block, available_space, block_id, row, cx);
2004 block_id += 1;
2005 blocks.push(BlockLayout {
2006 row,
2007 element,
2008 available_space,
2009 style,
2010 });
2011 }
2012
2013 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2014 blocks
2015 }
2016
2017 fn layout_blocks(
2018 &self,
2019 blocks: &mut Vec<BlockLayout>,
2020 hitbox: &Hitbox,
2021 line_height: Pixels,
2022 scroll_pixel_position: gpui::Point<Pixels>,
2023 cx: &mut WindowContext,
2024 ) {
2025 for block in blocks {
2026 let mut origin = hitbox.origin
2027 + point(
2028 Pixels::ZERO,
2029 block.row as f32 * line_height - scroll_pixel_position.y,
2030 );
2031 if !matches!(block.style, BlockStyle::Sticky) {
2032 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2033 }
2034 block
2035 .element
2036 .prepaint_as_root(origin, block.available_space, cx);
2037 }
2038 }
2039
2040 #[allow(clippy::too_many_arguments)]
2041 fn layout_context_menu(
2042 &self,
2043 line_height: Pixels,
2044 hitbox: &Hitbox,
2045 text_hitbox: &Hitbox,
2046 content_origin: gpui::Point<Pixels>,
2047 start_row: u32,
2048 scroll_pixel_position: gpui::Point<Pixels>,
2049 line_layouts: &[LineWithInvisibles],
2050 newest_selection_head: DisplayPoint,
2051 gutter_overshoot: Pixels,
2052 cx: &mut WindowContext,
2053 ) -> bool {
2054 let max_height = cmp::min(
2055 12. * line_height,
2056 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2057 );
2058 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2059 if editor.context_menu_visible() {
2060 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2061 } else {
2062 None
2063 }
2064 }) else {
2065 return false;
2066 };
2067
2068 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2069 let context_menu_size = context_menu.layout_as_root(available_space, cx);
2070
2071 let (x, y) = match position {
2072 crate::ContextMenuOrigin::EditorPoint(point) => {
2073 let cursor_row_layout = &line_layouts[(point.row() - start_row) as usize].line;
2074 let x = cursor_row_layout.x_for_index(point.column() as usize)
2075 - scroll_pixel_position.x;
2076 let y = (point.row() + 1) as f32 * line_height - scroll_pixel_position.y;
2077 (x, y)
2078 }
2079 crate::ContextMenuOrigin::GutterIndicator(row) => {
2080 // 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
2081 // text field.
2082 let x = -gutter_overshoot;
2083 let y = (row + 1) as f32 * line_height - scroll_pixel_position.y;
2084 (x, y)
2085 }
2086 };
2087
2088 let mut list_origin = content_origin + point(x, y);
2089 let list_width = context_menu_size.width;
2090 let list_height = context_menu_size.height;
2091
2092 // Snap the right edge of the list to the right edge of the window if
2093 // its horizontal bounds overflow.
2094 if list_origin.x + list_width > cx.viewport_size().width {
2095 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2096 }
2097
2098 if list_origin.y + list_height > text_hitbox.lower_right().y {
2099 list_origin.y -= line_height + list_height;
2100 }
2101
2102 cx.defer_draw(context_menu, list_origin, 1);
2103 true
2104 }
2105
2106 fn layout_mouse_context_menu(&self, cx: &mut WindowContext) -> Option<AnyElement> {
2107 let mouse_context_menu = self.editor.read(cx).mouse_context_menu.as_ref()?;
2108 let mut element = deferred(
2109 anchored()
2110 .position(mouse_context_menu.position)
2111 .child(mouse_context_menu.context_menu.clone())
2112 .anchor(AnchorCorner::TopLeft)
2113 .snap_to_window(),
2114 )
2115 .with_priority(1)
2116 .into_any();
2117
2118 element.prepaint_as_root(gpui::Point::default(), AvailableSpace::min_size(), cx);
2119 Some(element)
2120 }
2121
2122 #[allow(clippy::too_many_arguments)]
2123 fn layout_hover_popovers(
2124 &self,
2125 snapshot: &EditorSnapshot,
2126 hitbox: &Hitbox,
2127 text_hitbox: &Hitbox,
2128 visible_display_row_range: Range<u32>,
2129 content_origin: gpui::Point<Pixels>,
2130 scroll_pixel_position: gpui::Point<Pixels>,
2131 line_layouts: &[LineWithInvisibles],
2132 line_height: Pixels,
2133 em_width: Pixels,
2134 cx: &mut WindowContext,
2135 ) {
2136 struct MeasuredHoverPopover {
2137 element: AnyElement,
2138 size: Size<Pixels>,
2139 horizontal_offset: Pixels,
2140 }
2141
2142 let max_size = size(
2143 (120. * em_width) // Default size
2144 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2145 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2146 (16. * line_height) // Default size
2147 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2148 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2149 );
2150
2151 let hover_popovers = self.editor.update(cx, |editor, cx| {
2152 editor.hover_state.render(
2153 &snapshot,
2154 &self.style,
2155 visible_display_row_range.clone(),
2156 max_size,
2157 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2158 cx,
2159 )
2160 });
2161 let Some((position, hover_popovers)) = hover_popovers else {
2162 return;
2163 };
2164
2165 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2166
2167 // This is safe because we check on layout whether the required row is available
2168 let hovered_row_layout =
2169 &line_layouts[(position.row() - visible_display_row_range.start) as usize].line;
2170
2171 // Compute Hovered Point
2172 let x =
2173 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2174 let y = position.row() as f32 * line_height - scroll_pixel_position.y;
2175 let hovered_point = content_origin + point(x, y);
2176
2177 let mut overall_height = Pixels::ZERO;
2178 let mut measured_hover_popovers = Vec::new();
2179 for mut hover_popover in hover_popovers {
2180 let size = hover_popover.layout_as_root(available_space, cx);
2181 let horizontal_offset =
2182 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2183
2184 overall_height += HOVER_POPOVER_GAP + size.height;
2185
2186 measured_hover_popovers.push(MeasuredHoverPopover {
2187 element: hover_popover,
2188 size,
2189 horizontal_offset,
2190 });
2191 }
2192 overall_height += HOVER_POPOVER_GAP;
2193
2194 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2195 let mut occlusion = div()
2196 .size_full()
2197 .occlude()
2198 .on_mouse_move(|_, cx| cx.stop_propagation())
2199 .into_any_element();
2200 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2201 cx.defer_draw(occlusion, origin, 2);
2202 }
2203
2204 if hovered_point.y > overall_height {
2205 // There is enough space above. Render popovers above the hovered point
2206 let mut current_y = hovered_point.y;
2207 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2208 let size = popover.size;
2209 let popover_origin = point(
2210 hovered_point.x + popover.horizontal_offset,
2211 current_y - size.height,
2212 );
2213
2214 cx.defer_draw(popover.element, popover_origin, 2);
2215 if position != itertools::Position::Last {
2216 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2217 draw_occluder(size.width, origin, cx);
2218 }
2219
2220 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2221 }
2222 } else {
2223 // There is not enough space above. Render popovers below the hovered point
2224 let mut current_y = hovered_point.y + line_height;
2225 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2226 let size = popover.size;
2227 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2228
2229 cx.defer_draw(popover.element, popover_origin, 2);
2230 if position != itertools::Position::Last {
2231 let origin = point(popover_origin.x, popover_origin.y + size.height);
2232 draw_occluder(size.width, origin, cx);
2233 }
2234
2235 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2236 }
2237 }
2238 }
2239
2240 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2241 cx.paint_layer(layout.hitbox.bounds, |cx| {
2242 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2243 let gutter_bg = cx.theme().colors().editor_gutter_background;
2244 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2245 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2246
2247 if let EditorMode::Full = layout.mode {
2248 let mut active_rows = layout.active_rows.iter().peekable();
2249 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2250 let mut end_row = *start_row;
2251 while active_rows.peek().map_or(false, |r| {
2252 *r.0 == end_row + 1 && r.1 == contains_non_empty_selection
2253 }) {
2254 active_rows.next().unwrap();
2255 end_row += 1;
2256 }
2257
2258 if !contains_non_empty_selection {
2259 let origin = point(
2260 layout.hitbox.origin.x,
2261 layout.hitbox.origin.y
2262 + (*start_row as f32 - scroll_top)
2263 * layout.position_map.line_height,
2264 );
2265 let size = size(
2266 layout.hitbox.size.width,
2267 layout.position_map.line_height * (end_row - start_row + 1) as f32,
2268 );
2269 let active_line_bg = cx.theme().colors().editor_active_line_background;
2270 cx.paint_quad(fill(Bounds { origin, size }, active_line_bg));
2271 }
2272 }
2273
2274 let mut paint_highlight =
2275 |highlight_row_start: u32, highlight_row_end: u32, color| {
2276 let origin = point(
2277 layout.hitbox.origin.x,
2278 layout.hitbox.origin.y
2279 + (highlight_row_start as f32 - scroll_top)
2280 * layout.position_map.line_height,
2281 );
2282 let size = size(
2283 layout.hitbox.size.width,
2284 layout.position_map.line_height
2285 * (highlight_row_end + 1 - highlight_row_start) as f32,
2286 );
2287 cx.paint_quad(fill(Bounds { origin, size }, color));
2288 };
2289
2290 let mut current_paint: Option<(Hsla, Range<u32>)> = None;
2291 for (&new_row, &new_color) in &layout.highlighted_rows {
2292 match &mut current_paint {
2293 Some((current_color, current_range)) => {
2294 let current_color = *current_color;
2295 let new_range_started =
2296 current_color != new_color || current_range.end + 1 != new_row;
2297 if new_range_started {
2298 paint_highlight(
2299 current_range.start,
2300 current_range.end,
2301 current_color,
2302 );
2303 current_paint = Some((new_color, new_row..new_row));
2304 continue;
2305 } else {
2306 current_range.end += 1;
2307 }
2308 }
2309 None => current_paint = Some((new_color, new_row..new_row)),
2310 };
2311 }
2312 if let Some((color, range)) = current_paint {
2313 paint_highlight(range.start, range.end, color);
2314 }
2315
2316 let scroll_left =
2317 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
2318
2319 for (wrap_position, active) in layout.wrap_guides.iter() {
2320 let x = (layout.text_hitbox.origin.x
2321 + *wrap_position
2322 + layout.position_map.em_width / 2.)
2323 - scroll_left;
2324
2325 let show_scrollbars = layout
2326 .scrollbar_layout
2327 .as_ref()
2328 .map_or(false, |scrollbar| scrollbar.visible);
2329 if x < layout.text_hitbox.origin.x
2330 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
2331 {
2332 continue;
2333 }
2334
2335 let color = if *active {
2336 cx.theme().colors().editor_active_wrap_guide
2337 } else {
2338 cx.theme().colors().editor_wrap_guide
2339 };
2340 cx.paint_quad(fill(
2341 Bounds {
2342 origin: point(x, layout.text_hitbox.origin.y),
2343 size: size(px(1.), layout.text_hitbox.size.height),
2344 },
2345 color,
2346 ));
2347 }
2348 }
2349 })
2350 }
2351
2352 fn paint_gutter(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2353 let line_height = layout.position_map.line_height;
2354
2355 let scroll_position = layout.position_map.snapshot.scroll_position();
2356 let scroll_top = scroll_position.y * line_height;
2357
2358 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
2359 for (_, hunk_hitbox) in &layout.display_hunks {
2360 if let Some(hunk_hitbox) = hunk_hitbox {
2361 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
2362 }
2363 }
2364
2365 let show_git_gutter = matches!(
2366 ProjectSettings::get_global(cx).git.git_gutter,
2367 Some(GitGutterSetting::TrackedFiles)
2368 );
2369 if show_git_gutter {
2370 Self::paint_diff_hunks(layout.gutter_hitbox.bounds, layout, cx)
2371 }
2372
2373 if layout.blamed_display_rows.is_some() {
2374 self.paint_blamed_display_rows(layout, cx);
2375 }
2376
2377 for (ix, line) in layout.line_numbers.iter().enumerate() {
2378 if let Some(line) = line {
2379 let line_origin = layout.gutter_hitbox.origin
2380 + point(
2381 layout.gutter_hitbox.size.width
2382 - line.width
2383 - layout.gutter_dimensions.right_padding,
2384 ix as f32 * line_height - (scroll_top % line_height),
2385 );
2386
2387 line.paint(line_origin, line_height, cx).log_err();
2388 }
2389 }
2390
2391 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2392 cx.with_element_namespace("gutter_fold_indicators", |cx| {
2393 for fold_indicator in layout.fold_indicators.iter_mut().flatten() {
2394 fold_indicator.paint(cx);
2395 }
2396 });
2397
2398 for test_indicators in layout.test_indicators.iter_mut() {
2399 test_indicators.paint(cx);
2400 }
2401
2402 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
2403 indicator.paint(cx);
2404 }
2405 });
2406 }
2407
2408 fn paint_diff_hunks(
2409 gutter_bounds: Bounds<Pixels>,
2410 layout: &EditorLayout,
2411 cx: &mut WindowContext,
2412 ) {
2413 if layout.display_hunks.is_empty() {
2414 return;
2415 }
2416
2417 let line_height = layout.position_map.line_height;
2418 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2419 for (hunk, hitbox) in &layout.display_hunks {
2420 let hunk_to_paint = match hunk {
2421 DisplayDiffHunk::Folded { .. } => {
2422 let hunk_bounds = Self::diff_hunk_bounds(
2423 &layout.position_map.snapshot,
2424 line_height,
2425 gutter_bounds,
2426 &hunk,
2427 );
2428 Some((
2429 hunk_bounds,
2430 cx.theme().status().modified,
2431 Corners::all(1. * line_height),
2432 ))
2433 }
2434 DisplayDiffHunk::Unfolded { status, .. } => {
2435 hitbox.as_ref().map(|hunk_hitbox| match status {
2436 DiffHunkStatus::Added => (
2437 hunk_hitbox.bounds,
2438 cx.theme().status().created,
2439 Corners::all(0.05 * line_height),
2440 ),
2441 DiffHunkStatus::Modified => (
2442 hunk_hitbox.bounds,
2443 cx.theme().status().modified,
2444 Corners::all(0.05 * line_height),
2445 ),
2446 DiffHunkStatus::Removed => (
2447 hunk_hitbox.bounds,
2448 cx.theme().status().deleted,
2449 Corners::all(1. * line_height),
2450 ),
2451 })
2452 }
2453 };
2454
2455 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
2456 cx.paint_quad(quad(
2457 hunk_bounds,
2458 corner_radii,
2459 background_color,
2460 Edges::default(),
2461 transparent_black(),
2462 ));
2463 }
2464 }
2465 });
2466 }
2467
2468 fn diff_hunk_bounds(
2469 snapshot: &EditorSnapshot,
2470 line_height: Pixels,
2471 bounds: Bounds<Pixels>,
2472 hunk: &DisplayDiffHunk,
2473 ) -> Bounds<Pixels> {
2474 let scroll_position = snapshot.scroll_position();
2475 let scroll_top = scroll_position.y * line_height;
2476
2477 match hunk {
2478 DisplayDiffHunk::Folded { display_row, .. } => {
2479 let start_y = *display_row as f32 * line_height - scroll_top;
2480 let end_y = start_y + line_height;
2481
2482 let width = 0.275 * line_height;
2483 let highlight_origin = bounds.origin + point(-width, start_y);
2484 let highlight_size = size(width * 2., end_y - start_y);
2485 Bounds::new(highlight_origin, highlight_size)
2486 }
2487 DisplayDiffHunk::Unfolded {
2488 display_row_range,
2489 status,
2490 ..
2491 } => match status {
2492 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
2493 let start_row = display_row_range.start;
2494 let end_row = display_row_range.end;
2495 // If we're in a multibuffer, row range span might include an
2496 // excerpt header, so if we were to draw the marker straight away,
2497 // the hunk might include the rows of that header.
2498 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
2499 // Instead, we simply check whether the range we're dealing with includes
2500 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
2501 let end_row_in_current_excerpt = snapshot
2502 .blocks_in_range(start_row..end_row)
2503 .find_map(|(start_row, block)| {
2504 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
2505 Some(start_row)
2506 } else {
2507 None
2508 }
2509 })
2510 .unwrap_or(end_row);
2511
2512 let start_y = start_row as f32 * line_height - scroll_top;
2513 let end_y = end_row_in_current_excerpt as f32 * line_height - scroll_top;
2514
2515 let width = 0.275 * line_height;
2516 let highlight_origin = bounds.origin + point(-width, start_y);
2517 let highlight_size = size(width * 2., end_y - start_y);
2518 Bounds::new(highlight_origin, highlight_size)
2519 }
2520 DiffHunkStatus::Removed => {
2521 let row = display_row_range.start;
2522
2523 let offset = line_height / 2.;
2524 let start_y = row as f32 * line_height - offset - scroll_top;
2525 let end_y = start_y + line_height;
2526
2527 let width = 0.35 * line_height;
2528 let highlight_origin = bounds.origin + point(-width, start_y);
2529 let highlight_size = size(width * 2., end_y - start_y);
2530 Bounds::new(highlight_origin, highlight_size)
2531 }
2532 },
2533 }
2534 }
2535
2536 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2537 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
2538 return;
2539 };
2540
2541 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2542 for mut blame_element in blamed_display_rows.into_iter() {
2543 blame_element.paint(cx);
2544 }
2545 })
2546 }
2547
2548 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2549 cx.with_content_mask(
2550 Some(ContentMask {
2551 bounds: layout.text_hitbox.bounds,
2552 }),
2553 |cx| {
2554 let cursor_style = if self
2555 .editor
2556 .read(cx)
2557 .hovered_link_state
2558 .as_ref()
2559 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
2560 {
2561 CursorStyle::PointingHand
2562 } else {
2563 CursorStyle::IBeam
2564 };
2565 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
2566
2567 cx.with_element_namespace("folds", |cx| self.paint_folds(layout, cx));
2568 let invisible_display_ranges = self.paint_highlights(layout, cx);
2569 self.paint_lines(&invisible_display_ranges, layout, cx);
2570 self.paint_redactions(layout, cx);
2571 self.paint_cursors(layout, cx);
2572 self.paint_inline_blame(layout, cx);
2573 },
2574 )
2575 }
2576
2577 fn paint_highlights(
2578 &mut self,
2579 layout: &mut EditorLayout,
2580 cx: &mut WindowContext,
2581 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
2582 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2583 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
2584 let line_end_overshoot = 0.15 * layout.position_map.line_height;
2585 for (range, color) in &layout.highlighted_ranges {
2586 self.paint_highlighted_range(
2587 range.clone(),
2588 *color,
2589 Pixels::ZERO,
2590 line_end_overshoot,
2591 layout,
2592 cx,
2593 );
2594 }
2595
2596 let corner_radius = 0.15 * layout.position_map.line_height;
2597
2598 for (player_color, selections) in &layout.selections {
2599 for selection in selections.into_iter() {
2600 self.paint_highlighted_range(
2601 selection.range.clone(),
2602 player_color.selection,
2603 corner_radius,
2604 corner_radius * 2.,
2605 layout,
2606 cx,
2607 );
2608
2609 if selection.is_local && !selection.range.is_empty() {
2610 invisible_display_ranges.push(selection.range.clone());
2611 }
2612 }
2613 }
2614 invisible_display_ranges
2615 })
2616 }
2617
2618 fn paint_lines(
2619 &mut self,
2620 invisible_display_ranges: &[Range<DisplayPoint>],
2621 layout: &EditorLayout,
2622 cx: &mut WindowContext,
2623 ) {
2624 let whitespace_setting = self
2625 .editor
2626 .read(cx)
2627 .buffer
2628 .read(cx)
2629 .settings_at(0, cx)
2630 .show_whitespaces;
2631
2632 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
2633 let row = layout.visible_display_row_range.start + ix as u32;
2634 line_with_invisibles.draw(
2635 layout,
2636 row,
2637 layout.content_origin,
2638 whitespace_setting,
2639 invisible_display_ranges,
2640 cx,
2641 )
2642 }
2643 }
2644
2645 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
2646 if layout.redacted_ranges.is_empty() {
2647 return;
2648 }
2649
2650 let line_end_overshoot = layout.line_end_overshoot();
2651
2652 // A softer than perfect black
2653 let redaction_color = gpui::rgb(0x0e1111);
2654
2655 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
2656 for range in layout.redacted_ranges.iter() {
2657 self.paint_highlighted_range(
2658 range.clone(),
2659 redaction_color.into(),
2660 Pixels::ZERO,
2661 line_end_overshoot,
2662 layout,
2663 cx,
2664 );
2665 }
2666 });
2667 }
2668
2669 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2670 for cursor in &mut layout.visible_cursors {
2671 cursor.paint(layout.content_origin, cx);
2672 }
2673 }
2674
2675 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2676 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
2677 return;
2678 };
2679
2680 let thumb_bounds = scrollbar_layout.thumb_bounds();
2681 if scrollbar_layout.visible {
2682 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
2683 cx.paint_quad(quad(
2684 scrollbar_layout.hitbox.bounds,
2685 Corners::default(),
2686 cx.theme().colors().scrollbar_track_background,
2687 Edges {
2688 top: Pixels::ZERO,
2689 right: Pixels::ZERO,
2690 bottom: Pixels::ZERO,
2691 left: ScrollbarLayout::BORDER_WIDTH,
2692 },
2693 cx.theme().colors().scrollbar_track_border,
2694 ));
2695
2696 let fast_markers =
2697 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
2698 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
2699 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
2700
2701 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
2702 for marker in markers.iter().chain(&fast_markers) {
2703 let mut marker = marker.clone();
2704 marker.bounds.origin += scrollbar_layout.hitbox.origin;
2705 cx.paint_quad(marker);
2706 }
2707
2708 cx.paint_quad(quad(
2709 thumb_bounds,
2710 Corners::default(),
2711 cx.theme().colors().scrollbar_thumb_background,
2712 Edges {
2713 top: Pixels::ZERO,
2714 right: Pixels::ZERO,
2715 bottom: Pixels::ZERO,
2716 left: ScrollbarLayout::BORDER_WIDTH,
2717 },
2718 cx.theme().colors().scrollbar_thumb_border,
2719 ));
2720 });
2721 }
2722
2723 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
2724
2725 let row_height = scrollbar_layout.row_height;
2726 let row_range = scrollbar_layout.visible_row_range.clone();
2727
2728 cx.on_mouse_event({
2729 let editor = self.editor.clone();
2730 let hitbox = scrollbar_layout.hitbox.clone();
2731 let mut mouse_position = cx.mouse_position();
2732 move |event: &MouseMoveEvent, phase, cx| {
2733 if phase == DispatchPhase::Capture {
2734 return;
2735 }
2736
2737 editor.update(cx, |editor, cx| {
2738 if event.pressed_button == Some(MouseButton::Left)
2739 && editor.scroll_manager.is_dragging_scrollbar()
2740 {
2741 let y = mouse_position.y;
2742 let new_y = event.position.y;
2743 if (hitbox.top()..hitbox.bottom()).contains(&y) {
2744 let mut position = editor.scroll_position(cx);
2745 position.y += (new_y - y) / row_height;
2746 if position.y < 0.0 {
2747 position.y = 0.0;
2748 }
2749 editor.set_scroll_position(position, cx);
2750 }
2751
2752 cx.stop_propagation();
2753 } else {
2754 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2755 if hitbox.is_hovered(cx) {
2756 editor.scroll_manager.show_scrollbar(cx);
2757 }
2758 }
2759 mouse_position = event.position;
2760 })
2761 }
2762 });
2763
2764 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
2765 cx.on_mouse_event({
2766 let editor = self.editor.clone();
2767 move |_: &MouseUpEvent, phase, cx| {
2768 if phase == DispatchPhase::Capture {
2769 return;
2770 }
2771
2772 editor.update(cx, |editor, cx| {
2773 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
2774 cx.stop_propagation();
2775 });
2776 }
2777 });
2778 } else {
2779 cx.on_mouse_event({
2780 let editor = self.editor.clone();
2781 let hitbox = scrollbar_layout.hitbox.clone();
2782 move |event: &MouseDownEvent, phase, cx| {
2783 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
2784 return;
2785 }
2786
2787 editor.update(cx, |editor, cx| {
2788 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
2789
2790 let y = event.position.y;
2791 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
2792 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
2793 let top_row = center_row
2794 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
2795 let mut position = editor.scroll_position(cx);
2796 position.y = top_row as f32;
2797 editor.set_scroll_position(position, cx);
2798 } else {
2799 editor.scroll_manager.show_scrollbar(cx);
2800 }
2801
2802 cx.stop_propagation();
2803 });
2804 }
2805 });
2806 }
2807 }
2808
2809 fn collect_fast_scrollbar_markers(
2810 &self,
2811 layout: &EditorLayout,
2812 scrollbar_layout: &ScrollbarLayout,
2813 cx: &mut WindowContext,
2814 ) -> Vec<PaintQuad> {
2815 const LIMIT: usize = 100;
2816 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
2817 return vec![];
2818 }
2819 let cursor_ranges = layout
2820 .cursors
2821 .iter()
2822 .map(|(point, color)| ColoredRange {
2823 start: point.row(),
2824 end: point.row(),
2825 color: *color,
2826 })
2827 .collect_vec();
2828 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
2829 }
2830
2831 fn refresh_slow_scrollbar_markers(
2832 &self,
2833 layout: &EditorLayout,
2834 scrollbar_layout: &ScrollbarLayout,
2835 cx: &mut WindowContext,
2836 ) {
2837 self.editor.update(cx, |editor, cx| {
2838 if !editor.is_singleton(cx)
2839 || !editor
2840 .scrollbar_marker_state
2841 .should_refresh(scrollbar_layout.hitbox.size)
2842 {
2843 return;
2844 }
2845
2846 let scrollbar_layout = scrollbar_layout.clone();
2847 let background_highlights = editor.background_highlights.clone();
2848 let snapshot = layout.position_map.snapshot.clone();
2849 let theme = cx.theme().clone();
2850 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
2851 let max_row = layout.max_row;
2852
2853 editor.scrollbar_marker_state.dirty = false;
2854 editor.scrollbar_marker_state.pending_refresh =
2855 Some(cx.spawn(|editor, mut cx| async move {
2856 let scrollbar_size = scrollbar_layout.hitbox.size;
2857 let scrollbar_markers = cx
2858 .background_executor()
2859 .spawn(async move {
2860 let mut marker_quads = Vec::new();
2861
2862 if scrollbar_settings.git_diff {
2863 let marker_row_ranges = snapshot
2864 .buffer_snapshot
2865 .git_diff_hunks_in_range(0..max_row)
2866 .map(|hunk| {
2867 let start_display_row =
2868 Point::new(hunk.associated_range.start, 0)
2869 .to_display_point(&snapshot.display_snapshot)
2870 .row();
2871 let mut end_display_row =
2872 Point::new(hunk.associated_range.end, 0)
2873 .to_display_point(&snapshot.display_snapshot)
2874 .row();
2875 if end_display_row != start_display_row {
2876 end_display_row -= 1;
2877 }
2878 let color = match hunk.status() {
2879 DiffHunkStatus::Added => theme.status().created,
2880 DiffHunkStatus::Modified => theme.status().modified,
2881 DiffHunkStatus::Removed => theme.status().deleted,
2882 };
2883 ColoredRange {
2884 start: start_display_row,
2885 end: end_display_row,
2886 color,
2887 }
2888 });
2889
2890 marker_quads.extend(
2891 scrollbar_layout
2892 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
2893 );
2894 }
2895
2896 for (background_highlight_id, (_, background_ranges)) in
2897 background_highlights.iter()
2898 {
2899 let is_search_highlights = *background_highlight_id
2900 == TypeId::of::<BufferSearchHighlights>();
2901 let is_symbol_occurrences = *background_highlight_id
2902 == TypeId::of::<DocumentHighlightRead>()
2903 || *background_highlight_id
2904 == TypeId::of::<DocumentHighlightWrite>();
2905 if (is_search_highlights && scrollbar_settings.search_results)
2906 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
2907 {
2908 let mut color = theme.status().info;
2909 if is_symbol_occurrences {
2910 color.fade_out(0.5);
2911 }
2912 let marker_row_ranges =
2913 background_ranges.into_iter().map(|range| {
2914 let display_start = range
2915 .start
2916 .to_display_point(&snapshot.display_snapshot);
2917 let display_end = range
2918 .end
2919 .to_display_point(&snapshot.display_snapshot);
2920 ColoredRange {
2921 start: display_start.row(),
2922 end: display_end.row(),
2923 color,
2924 }
2925 });
2926 marker_quads.extend(
2927 scrollbar_layout
2928 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
2929 );
2930 }
2931 }
2932
2933 if scrollbar_settings.diagnostics {
2934 let max_point =
2935 snapshot.display_snapshot.buffer_snapshot.max_point();
2936
2937 let diagnostics = snapshot
2938 .buffer_snapshot
2939 .diagnostics_in_range::<_, Point>(
2940 Point::zero()..max_point,
2941 false,
2942 )
2943 // We want to sort by severity, in order to paint the most severe diagnostics last.
2944 .sorted_by_key(|diagnostic| {
2945 std::cmp::Reverse(diagnostic.diagnostic.severity)
2946 });
2947
2948 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
2949 let start_display = diagnostic
2950 .range
2951 .start
2952 .to_display_point(&snapshot.display_snapshot);
2953 let end_display = diagnostic
2954 .range
2955 .end
2956 .to_display_point(&snapshot.display_snapshot);
2957 let color = match diagnostic.diagnostic.severity {
2958 DiagnosticSeverity::ERROR => theme.status().error,
2959 DiagnosticSeverity::WARNING => theme.status().warning,
2960 DiagnosticSeverity::INFORMATION => theme.status().info,
2961 _ => theme.status().hint,
2962 };
2963 ColoredRange {
2964 start: start_display.row(),
2965 end: end_display.row(),
2966 color,
2967 }
2968 });
2969 marker_quads.extend(
2970 scrollbar_layout
2971 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
2972 );
2973 }
2974
2975 Arc::from(marker_quads)
2976 })
2977 .await;
2978
2979 editor.update(&mut cx, |editor, cx| {
2980 editor.scrollbar_marker_state.markers = scrollbar_markers;
2981 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
2982 editor.scrollbar_marker_state.pending_refresh = None;
2983 cx.notify();
2984 })?;
2985
2986 Ok(())
2987 }));
2988 });
2989 }
2990
2991 #[allow(clippy::too_many_arguments)]
2992 fn paint_highlighted_range(
2993 &self,
2994 range: Range<DisplayPoint>,
2995 color: Hsla,
2996 corner_radius: Pixels,
2997 line_end_overshoot: Pixels,
2998 layout: &EditorLayout,
2999 cx: &mut WindowContext,
3000 ) {
3001 let start_row = layout.visible_display_row_range.start;
3002 let end_row = layout.visible_display_row_range.end;
3003 if range.start != range.end {
3004 let row_range = if range.end.column() == 0 {
3005 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3006 } else {
3007 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row() + 1, end_row)
3008 };
3009
3010 let highlighted_range = HighlightedRange {
3011 color,
3012 line_height: layout.position_map.line_height,
3013 corner_radius,
3014 start_y: layout.content_origin.y
3015 + row_range.start as f32 * layout.position_map.line_height
3016 - layout.position_map.scroll_pixel_position.y,
3017 lines: row_range
3018 .into_iter()
3019 .map(|row| {
3020 let line_layout =
3021 &layout.position_map.line_layouts[(row - start_row) as usize].line;
3022 HighlightedRangeLine {
3023 start_x: if row == range.start.row() {
3024 layout.content_origin.x
3025 + line_layout.x_for_index(range.start.column() as usize)
3026 - layout.position_map.scroll_pixel_position.x
3027 } else {
3028 layout.content_origin.x
3029 - layout.position_map.scroll_pixel_position.x
3030 },
3031 end_x: if row == range.end.row() {
3032 layout.content_origin.x
3033 + line_layout.x_for_index(range.end.column() as usize)
3034 - layout.position_map.scroll_pixel_position.x
3035 } else {
3036 layout.content_origin.x + line_layout.width + line_end_overshoot
3037 - layout.position_map.scroll_pixel_position.x
3038 },
3039 }
3040 })
3041 .collect(),
3042 };
3043
3044 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3045 }
3046 }
3047
3048 fn paint_folds(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3049 if layout.folds.is_empty() {
3050 return;
3051 }
3052
3053 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3054 let fold_corner_radius = 0.15 * layout.position_map.line_height;
3055 for mut fold in mem::take(&mut layout.folds) {
3056 fold.hover_element.paint(cx);
3057
3058 let hover_element = fold.hover_element.downcast_mut::<Stateful<Div>>().unwrap();
3059 let fold_background = if hover_element.interactivity().active.unwrap() {
3060 cx.theme().colors().ghost_element_active
3061 } else if hover_element.interactivity().hovered.unwrap() {
3062 cx.theme().colors().ghost_element_hover
3063 } else {
3064 cx.theme().colors().ghost_element_background
3065 };
3066
3067 self.paint_highlighted_range(
3068 fold.display_range.clone(),
3069 fold_background,
3070 fold_corner_radius,
3071 fold_corner_radius * 2.,
3072 layout,
3073 cx,
3074 );
3075 }
3076 })
3077 }
3078
3079 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3080 if let Some(mut inline_blame) = layout.inline_blame.take() {
3081 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3082 inline_blame.paint(cx);
3083 })
3084 }
3085 }
3086
3087 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3088 for mut block in layout.blocks.drain(..) {
3089 block.element.paint(cx);
3090 }
3091 }
3092
3093 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3094 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3095 mouse_context_menu.paint(cx);
3096 }
3097 }
3098
3099 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3100 cx.on_mouse_event({
3101 let position_map = layout.position_map.clone();
3102 let editor = self.editor.clone();
3103 let hitbox = layout.hitbox.clone();
3104 let mut delta = ScrollDelta::default();
3105
3106 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3107 // accidentally turn off their scrolling.
3108 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3109
3110 move |event: &ScrollWheelEvent, phase, cx| {
3111 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3112 delta = delta.coalesce(event.delta);
3113 editor.update(cx, |editor, cx| {
3114 let position_map: &PositionMap = &position_map;
3115
3116 let line_height = position_map.line_height;
3117 let max_glyph_width = position_map.em_width;
3118 let (delta, axis) = match delta {
3119 gpui::ScrollDelta::Pixels(mut pixels) => {
3120 //Trackpad
3121 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3122 (pixels, axis)
3123 }
3124
3125 gpui::ScrollDelta::Lines(lines) => {
3126 //Not trackpad
3127 let pixels =
3128 point(lines.x * max_glyph_width, lines.y * line_height);
3129 (pixels, None)
3130 }
3131 };
3132
3133 let current_scroll_position = position_map.snapshot.scroll_position();
3134 let x = (current_scroll_position.x * max_glyph_width
3135 - (delta.x * scroll_sensitivity))
3136 / max_glyph_width;
3137 let y = (current_scroll_position.y * line_height
3138 - (delta.y * scroll_sensitivity))
3139 / line_height;
3140 let mut scroll_position =
3141 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
3142 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
3143 if forbid_vertical_scroll {
3144 scroll_position.y = current_scroll_position.y;
3145 if scroll_position == current_scroll_position {
3146 return;
3147 }
3148 }
3149 editor.scroll(scroll_position, axis, cx);
3150 cx.stop_propagation();
3151 });
3152 }
3153 }
3154 });
3155 }
3156
3157 fn paint_mouse_listeners(
3158 &mut self,
3159 layout: &EditorLayout,
3160 hovered_hunk: Option<HunkToExpand>,
3161 cx: &mut WindowContext,
3162 ) {
3163 self.paint_scroll_wheel_listener(layout, cx);
3164
3165 cx.on_mouse_event({
3166 let position_map = layout.position_map.clone();
3167 let editor = self.editor.clone();
3168 let text_hitbox = layout.text_hitbox.clone();
3169 let gutter_hitbox = layout.gutter_hitbox.clone();
3170
3171 move |event: &MouseDownEvent, phase, cx| {
3172 if phase == DispatchPhase::Bubble {
3173 match event.button {
3174 MouseButton::Left => editor.update(cx, |editor, cx| {
3175 Self::mouse_left_down(
3176 editor,
3177 event,
3178 hovered_hunk.as_ref(),
3179 &position_map,
3180 &text_hitbox,
3181 &gutter_hitbox,
3182 cx,
3183 );
3184 }),
3185 MouseButton::Right => editor.update(cx, |editor, cx| {
3186 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
3187 }),
3188 MouseButton::Middle => editor.update(cx, |editor, cx| {
3189 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
3190 }),
3191 _ => {}
3192 };
3193 }
3194 }
3195 });
3196
3197 cx.on_mouse_event({
3198 let editor = self.editor.clone();
3199 let position_map = layout.position_map.clone();
3200 let text_hitbox = layout.text_hitbox.clone();
3201
3202 move |event: &MouseUpEvent, phase, cx| {
3203 if phase == DispatchPhase::Bubble {
3204 editor.update(cx, |editor, cx| {
3205 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
3206 });
3207 }
3208 }
3209 });
3210 cx.on_mouse_event({
3211 let position_map = layout.position_map.clone();
3212 let editor = self.editor.clone();
3213 let text_hitbox = layout.text_hitbox.clone();
3214 let gutter_hitbox = layout.gutter_hitbox.clone();
3215
3216 move |event: &MouseMoveEvent, phase, cx| {
3217 if phase == DispatchPhase::Bubble {
3218 editor.update(cx, |editor, cx| {
3219 if event.pressed_button == Some(MouseButton::Left) {
3220 Self::mouse_dragged(
3221 editor,
3222 event,
3223 &position_map,
3224 text_hitbox.bounds,
3225 cx,
3226 )
3227 }
3228
3229 Self::mouse_moved(
3230 editor,
3231 event,
3232 &position_map,
3233 &text_hitbox,
3234 &gutter_hitbox,
3235 cx,
3236 )
3237 });
3238 }
3239 }
3240 });
3241 }
3242
3243 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
3244 bounds.upper_right().x - self.style.scrollbar_width
3245 }
3246
3247 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
3248 let style = &self.style;
3249 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3250 let layout = cx
3251 .text_system()
3252 .shape_line(
3253 SharedString::from(" ".repeat(column)),
3254 font_size,
3255 &[TextRun {
3256 len: column,
3257 font: style.text.font(),
3258 color: Hsla::default(),
3259 background_color: None,
3260 underline: None,
3261 strikethrough: None,
3262 }],
3263 )
3264 .unwrap();
3265
3266 layout.width
3267 }
3268
3269 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
3270 let digit_count = (snapshot.max_buffer_row() as f32 + 1.).log10().floor() as usize + 1;
3271 self.column_pixels(digit_count, cx)
3272 }
3273}
3274
3275fn prepaint_gutter_button(
3276 button: IconButton,
3277 row: u32,
3278 line_height: Pixels,
3279 gutter_dimensions: &GutterDimensions,
3280 scroll_pixel_position: gpui::Point<Pixels>,
3281 gutter_hitbox: &Hitbox,
3282 cx: &mut WindowContext<'_>,
3283) -> AnyElement {
3284 let mut button = button.into_any_element();
3285 let available_space = size(
3286 AvailableSpace::MinContent,
3287 AvailableSpace::Definite(line_height),
3288 );
3289 let indicator_size = button.layout_as_root(available_space, cx);
3290
3291 let blame_width = gutter_dimensions
3292 .git_blame_entries_width
3293 .unwrap_or(Pixels::ZERO);
3294
3295 let mut x = blame_width;
3296 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
3297 - indicator_size.width
3298 - blame_width;
3299 x += available_width / 2.;
3300
3301 let mut y = row as f32 * line_height - scroll_pixel_position.y;
3302 y += (line_height - indicator_size.height) / 2.;
3303
3304 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
3305 button
3306}
3307
3308fn render_inline_blame_entry(
3309 blame: &gpui::Model<GitBlame>,
3310 blame_entry: BlameEntry,
3311 style: &EditorStyle,
3312 workspace: Option<WeakView<Workspace>>,
3313 cx: &mut WindowContext<'_>,
3314) -> AnyElement {
3315 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3316
3317 let author = blame_entry.author.as_deref().unwrap_or_default();
3318 let text = format!("{}, {}", author, relative_timestamp);
3319
3320 let details = blame.read(cx).details_for_entry(&blame_entry);
3321
3322 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
3323
3324 h_flex()
3325 .id("inline-blame")
3326 .w_full()
3327 .font_family(style.text.font().family)
3328 .text_color(cx.theme().status().hint)
3329 .line_height(style.text.line_height)
3330 .child(Icon::new(IconName::FileGit).color(Color::Hint))
3331 .child(text)
3332 .gap_2()
3333 .hoverable_tooltip(move |_| tooltip.clone().into())
3334 .into_any()
3335}
3336
3337fn render_blame_entry(
3338 ix: usize,
3339 blame: &gpui::Model<GitBlame>,
3340 blame_entry: BlameEntry,
3341 style: &EditorStyle,
3342 last_used_color: &mut Option<(PlayerColor, Oid)>,
3343 editor: View<Editor>,
3344 cx: &mut WindowContext<'_>,
3345) -> AnyElement {
3346 let mut sha_color = cx
3347 .theme()
3348 .players()
3349 .color_for_participant(blame_entry.sha.into());
3350 // If the last color we used is the same as the one we get for this line, but
3351 // the commit SHAs are different, then we try again to get a different color.
3352 match *last_used_color {
3353 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
3354 let index: u32 = blame_entry.sha.into();
3355 sha_color = cx.theme().players().color_for_participant(index + 1);
3356 }
3357 _ => {}
3358 };
3359 last_used_color.replace((sha_color, blame_entry.sha));
3360
3361 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3362
3363 let short_commit_id = blame_entry.sha.display_short();
3364
3365 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
3366 let name = util::truncate_and_trailoff(author_name, 20);
3367
3368 let details = blame.read(cx).details_for_entry(&blame_entry);
3369
3370 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
3371
3372 let tooltip = cx.new_view(|_| {
3373 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
3374 });
3375
3376 h_flex()
3377 .w_full()
3378 .font_family(style.text.font().family)
3379 .line_height(style.text.line_height)
3380 .id(("blame", ix))
3381 .children([
3382 div()
3383 .text_color(sha_color.cursor)
3384 .child(short_commit_id)
3385 .mr_2(),
3386 div()
3387 .w_full()
3388 .h_flex()
3389 .justify_between()
3390 .text_color(cx.theme().status().hint)
3391 .child(name)
3392 .child(relative_timestamp),
3393 ])
3394 .on_mouse_down(MouseButton::Right, {
3395 let blame_entry = blame_entry.clone();
3396 move |event, cx| {
3397 deploy_blame_entry_context_menu(&blame_entry, editor.clone(), event.position, cx);
3398 }
3399 })
3400 .hover(|style| style.bg(cx.theme().colors().element_hover))
3401 .when_some(
3402 details.and_then(|details| details.permalink),
3403 |this, url| {
3404 let url = url.clone();
3405 this.cursor_pointer().on_click(move |_, cx| {
3406 cx.stop_propagation();
3407 cx.open_url(url.as_str())
3408 })
3409 },
3410 )
3411 .hoverable_tooltip(move |_| tooltip.clone().into())
3412 .into_any()
3413}
3414
3415fn deploy_blame_entry_context_menu(
3416 blame_entry: &BlameEntry,
3417 editor: View<Editor>,
3418 position: gpui::Point<Pixels>,
3419 cx: &mut WindowContext<'_>,
3420) {
3421 let context_menu = ContextMenu::build(cx, move |this, _| {
3422 let sha = format!("{}", blame_entry.sha);
3423 this.entry("Copy commit SHA", None, move |cx| {
3424 cx.write_to_clipboard(ClipboardItem::new(sha.clone()));
3425 })
3426 });
3427
3428 editor.update(cx, move |editor, cx| {
3429 editor.mouse_context_menu = Some(MouseContextMenu::new(position, context_menu, cx));
3430 cx.notify();
3431 });
3432}
3433
3434#[derive(Debug)]
3435pub(crate) struct LineWithInvisibles {
3436 pub line: ShapedLine,
3437 invisibles: Vec<Invisible>,
3438}
3439
3440impl LineWithInvisibles {
3441 fn from_chunks<'a>(
3442 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
3443 text_style: &TextStyle,
3444 max_line_len: usize,
3445 max_line_count: usize,
3446 line_number_layouts: &[Option<ShapedLine>],
3447 editor_mode: EditorMode,
3448 cx: &WindowContext,
3449 ) -> Vec<Self> {
3450 let mut layouts = Vec::with_capacity(max_line_count);
3451 let mut line = String::new();
3452 let mut invisibles = Vec::new();
3453 let mut styles = Vec::new();
3454 let mut non_whitespace_added = false;
3455 let mut row = 0;
3456 let mut line_exceeded_max_len = false;
3457 let font_size = text_style.font_size.to_pixels(cx.rem_size());
3458
3459 for highlighted_chunk in chunks.chain([HighlightedChunk {
3460 chunk: "\n",
3461 style: None,
3462 is_tab: false,
3463 }]) {
3464 for (ix, mut line_chunk) in highlighted_chunk.chunk.split('\n').enumerate() {
3465 if ix > 0 {
3466 let shaped_line = cx
3467 .text_system()
3468 .shape_line(line.clone().into(), font_size, &styles)
3469 .unwrap();
3470 layouts.push(Self {
3471 line: shaped_line,
3472 invisibles: std::mem::take(&mut invisibles),
3473 });
3474
3475 line.clear();
3476 styles.clear();
3477 row += 1;
3478 line_exceeded_max_len = false;
3479 non_whitespace_added = false;
3480 if row == max_line_count {
3481 return layouts;
3482 }
3483 }
3484
3485 if !line_chunk.is_empty() && !line_exceeded_max_len {
3486 let text_style = if let Some(style) = highlighted_chunk.style {
3487 Cow::Owned(text_style.clone().highlight(style))
3488 } else {
3489 Cow::Borrowed(text_style)
3490 };
3491
3492 if line.len() + line_chunk.len() > max_line_len {
3493 let mut chunk_len = max_line_len - line.len();
3494 while !line_chunk.is_char_boundary(chunk_len) {
3495 chunk_len -= 1;
3496 }
3497 line_chunk = &line_chunk[..chunk_len];
3498 line_exceeded_max_len = true;
3499 }
3500
3501 styles.push(TextRun {
3502 len: line_chunk.len(),
3503 font: text_style.font(),
3504 color: text_style.color,
3505 background_color: text_style.background_color,
3506 underline: text_style.underline,
3507 strikethrough: text_style.strikethrough,
3508 });
3509
3510 if editor_mode == EditorMode::Full {
3511 // Line wrap pads its contents with fake whitespaces,
3512 // avoid printing them
3513 let inside_wrapped_string = line_number_layouts
3514 .get(row)
3515 .and_then(|layout| layout.as_ref())
3516 .is_none();
3517 if highlighted_chunk.is_tab {
3518 if non_whitespace_added || !inside_wrapped_string {
3519 invisibles.push(Invisible::Tab {
3520 line_start_offset: line.len(),
3521 });
3522 }
3523 } else {
3524 invisibles.extend(
3525 line_chunk
3526 .chars()
3527 .enumerate()
3528 .filter(|(_, line_char)| {
3529 let is_whitespace = line_char.is_whitespace();
3530 non_whitespace_added |= !is_whitespace;
3531 is_whitespace
3532 && (non_whitespace_added || !inside_wrapped_string)
3533 })
3534 .map(|(whitespace_index, _)| Invisible::Whitespace {
3535 line_offset: line.len() + whitespace_index,
3536 }),
3537 )
3538 }
3539 }
3540
3541 line.push_str(line_chunk);
3542 }
3543 }
3544 }
3545
3546 layouts
3547 }
3548
3549 fn draw(
3550 &self,
3551 layout: &EditorLayout,
3552 row: u32,
3553 content_origin: gpui::Point<Pixels>,
3554 whitespace_setting: ShowWhitespaceSetting,
3555 selection_ranges: &[Range<DisplayPoint>],
3556 cx: &mut WindowContext,
3557 ) {
3558 let line_height = layout.position_map.line_height;
3559 let line_y =
3560 line_height * (row as f32 - layout.position_map.scroll_pixel_position.y / line_height);
3561
3562 let line_origin =
3563 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
3564 self.line.paint(line_origin, line_height, cx).log_err();
3565
3566 self.draw_invisibles(
3567 &selection_ranges,
3568 layout,
3569 content_origin,
3570 line_y,
3571 row,
3572 line_height,
3573 whitespace_setting,
3574 cx,
3575 );
3576 }
3577
3578 #[allow(clippy::too_many_arguments)]
3579 fn draw_invisibles(
3580 &self,
3581 selection_ranges: &[Range<DisplayPoint>],
3582 layout: &EditorLayout,
3583 content_origin: gpui::Point<Pixels>,
3584 line_y: Pixels,
3585 row: u32,
3586 line_height: Pixels,
3587 whitespace_setting: ShowWhitespaceSetting,
3588 cx: &mut WindowContext,
3589 ) {
3590 let allowed_invisibles_regions = match whitespace_setting {
3591 ShowWhitespaceSetting::None => return,
3592 ShowWhitespaceSetting::Selection => Some(selection_ranges),
3593 ShowWhitespaceSetting::All => None,
3594 };
3595
3596 for invisible in &self.invisibles {
3597 let (&token_offset, invisible_symbol) = match invisible {
3598 Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
3599 Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
3600 };
3601
3602 let x_offset = self.line.x_for_index(token_offset);
3603 let invisible_offset =
3604 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
3605 let origin = content_origin
3606 + gpui::point(
3607 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
3608 line_y,
3609 );
3610
3611 if let Some(allowed_regions) = allowed_invisibles_regions {
3612 let invisible_point = DisplayPoint::new(row, token_offset as u32);
3613 if !allowed_regions
3614 .iter()
3615 .any(|region| region.start <= invisible_point && invisible_point < region.end)
3616 {
3617 continue;
3618 }
3619 }
3620 invisible_symbol.paint(origin, line_height, cx).log_err();
3621 }
3622 }
3623}
3624
3625#[derive(Debug, Clone, Copy, PartialEq, Eq)]
3626enum Invisible {
3627 Tab { line_start_offset: usize },
3628 Whitespace { line_offset: usize },
3629}
3630
3631impl Element for EditorElement {
3632 type RequestLayoutState = ();
3633 type PrepaintState = EditorLayout;
3634
3635 fn id(&self) -> Option<ElementId> {
3636 None
3637 }
3638
3639 fn request_layout(
3640 &mut self,
3641 _: Option<&GlobalElementId>,
3642 cx: &mut WindowContext,
3643 ) -> (gpui::LayoutId, ()) {
3644 self.editor.update(cx, |editor, cx| {
3645 editor.set_style(self.style.clone(), cx);
3646
3647 let layout_id = match editor.mode {
3648 EditorMode::SingleLine => {
3649 let rem_size = cx.rem_size();
3650 let mut style = Style::default();
3651 style.size.width = relative(1.).into();
3652 style.size.height = self.style.text.line_height_in_pixels(rem_size).into();
3653 cx.request_layout(&style, None)
3654 }
3655 EditorMode::AutoHeight { max_lines } => {
3656 let editor_handle = cx.view().clone();
3657 let max_line_number_width =
3658 self.max_line_number_width(&editor.snapshot(cx), cx);
3659 cx.request_measured_layout(Style::default(), move |known_dimensions, _, cx| {
3660 editor_handle
3661 .update(cx, |editor, cx| {
3662 compute_auto_height_layout(
3663 editor,
3664 max_lines,
3665 max_line_number_width,
3666 known_dimensions,
3667 cx,
3668 )
3669 })
3670 .unwrap_or_default()
3671 })
3672 }
3673 EditorMode::Full => {
3674 let mut style = Style::default();
3675 style.size.width = relative(1.).into();
3676 style.size.height = relative(1.).into();
3677 cx.request_layout(&style, None)
3678 }
3679 };
3680
3681 (layout_id, ())
3682 })
3683 }
3684
3685 fn prepaint(
3686 &mut self,
3687 _: Option<&GlobalElementId>,
3688 bounds: Bounds<Pixels>,
3689 _: &mut Self::RequestLayoutState,
3690 cx: &mut WindowContext,
3691 ) -> Self::PrepaintState {
3692 let text_style = TextStyleRefinement {
3693 font_size: Some(self.style.text.font_size),
3694 line_height: Some(self.style.text.line_height),
3695 ..Default::default()
3696 };
3697 cx.set_view_id(self.editor.entity_id());
3698 cx.with_text_style(Some(text_style), |cx| {
3699 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
3700 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
3701 let style = self.style.clone();
3702
3703 let font_id = cx.text_system().resolve_font(&style.text.font());
3704 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3705 let line_height = style.text.line_height_in_pixels(cx.rem_size());
3706 let em_width = cx
3707 .text_system()
3708 .typographic_bounds(font_id, font_size, 'm')
3709 .unwrap()
3710 .size
3711 .width;
3712 let em_advance = cx
3713 .text_system()
3714 .advance(font_id, font_size, 'm')
3715 .unwrap()
3716 .width;
3717
3718 let gutter_dimensions = snapshot.gutter_dimensions(
3719 font_id,
3720 font_size,
3721 em_width,
3722 self.max_line_number_width(&snapshot, cx),
3723 cx,
3724 );
3725 let text_width = bounds.size.width - gutter_dimensions.width;
3726 let overscroll = size(em_width, px(0.));
3727
3728 snapshot = self.editor.update(cx, |editor, cx| {
3729 editor.last_bounds = Some(bounds);
3730 editor.gutter_dimensions = gutter_dimensions;
3731 editor.set_visible_line_count(bounds.size.height / line_height, cx);
3732
3733 let editor_width =
3734 text_width - gutter_dimensions.margin - overscroll.width - em_width;
3735 let wrap_width = match editor.soft_wrap_mode(cx) {
3736 SoftWrap::None => None,
3737 SoftWrap::PreferLine => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
3738 SoftWrap::EditorWidth => Some(editor_width),
3739 SoftWrap::Column(column) => {
3740 Some(editor_width.min(column as f32 * em_advance))
3741 }
3742 };
3743
3744 if editor.set_wrap_width(wrap_width, cx) {
3745 editor.snapshot(cx)
3746 } else {
3747 snapshot
3748 }
3749 });
3750
3751 let wrap_guides = self
3752 .editor
3753 .read(cx)
3754 .wrap_guides(cx)
3755 .iter()
3756 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
3757 .collect::<SmallVec<[_; 2]>>();
3758
3759 let hitbox = cx.insert_hitbox(bounds, false);
3760 let gutter_hitbox = cx.insert_hitbox(
3761 Bounds {
3762 origin: bounds.origin,
3763 size: size(gutter_dimensions.width, bounds.size.height),
3764 },
3765 false,
3766 );
3767 let text_hitbox = cx.insert_hitbox(
3768 Bounds {
3769 origin: gutter_hitbox.upper_right(),
3770 size: size(text_width, bounds.size.height),
3771 },
3772 false,
3773 );
3774 // Offset the content_bounds from the text_bounds by the gutter margin (which
3775 // is roughly half a character wide) to make hit testing work more like how we want.
3776 let content_origin =
3777 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
3778
3779 let mut autoscroll_containing_element = false;
3780 let mut autoscroll_horizontally = false;
3781 self.editor.update(cx, |editor, cx| {
3782 autoscroll_containing_element =
3783 editor.autoscroll_requested() || editor.has_pending_selection();
3784 autoscroll_horizontally = editor.autoscroll_vertically(bounds, line_height, cx);
3785 snapshot = editor.snapshot(cx);
3786 });
3787
3788 let mut scroll_position = snapshot.scroll_position();
3789 // The scroll position is a fractional point, the whole number of which represents
3790 // the top of the window in terms of display rows.
3791 let start_row = scroll_position.y as u32;
3792 let height_in_lines = bounds.size.height / line_height;
3793 let max_row = snapshot.max_point().row();
3794 let end_row = cmp::min(
3795 (scroll_position.y + height_in_lines).ceil() as u32,
3796 max_row + 1,
3797 );
3798
3799 let buffer_rows = snapshot
3800 .buffer_rows(start_row)
3801 .take((start_row..end_row).len());
3802
3803 let start_anchor = if start_row == 0 {
3804 Anchor::min()
3805 } else {
3806 snapshot.buffer_snapshot.anchor_before(
3807 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
3808 )
3809 };
3810 let end_anchor = if end_row > max_row {
3811 Anchor::max()
3812 } else {
3813 snapshot.buffer_snapshot.anchor_before(
3814 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
3815 )
3816 };
3817
3818 let highlighted_rows = self.editor.update(cx, |editor, cx| {
3819 editor.highlighted_display_rows(HashSet::default(), cx)
3820 });
3821 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
3822 start_anchor..end_anchor,
3823 &snapshot.display_snapshot,
3824 cx.theme().colors(),
3825 );
3826
3827 let redacted_ranges = self.editor.read(cx).redacted_ranges(
3828 start_anchor..end_anchor,
3829 &snapshot.display_snapshot,
3830 cx,
3831 );
3832
3833 let (selections, active_rows, newest_selection_head) = self.layout_selections(
3834 start_anchor,
3835 end_anchor,
3836 &snapshot,
3837 start_row,
3838 end_row,
3839 cx,
3840 );
3841
3842 let (line_numbers, fold_statuses) = self.layout_line_numbers(
3843 start_row..end_row,
3844 buffer_rows.clone(),
3845 &active_rows,
3846 newest_selection_head,
3847 &snapshot,
3848 cx,
3849 );
3850
3851 let display_hunks = self.layout_git_gutters(
3852 line_height,
3853 &gutter_hitbox,
3854 start_row..end_row,
3855 &snapshot,
3856 cx,
3857 );
3858
3859 let mut max_visible_line_width = Pixels::ZERO;
3860 let line_layouts =
3861 self.layout_lines(start_row..end_row, &line_numbers, &snapshot, cx);
3862 for line_with_invisibles in &line_layouts {
3863 if line_with_invisibles.line.width > max_visible_line_width {
3864 max_visible_line_width = line_with_invisibles.line.width;
3865 }
3866 }
3867
3868 let longest_line_width = layout_line(snapshot.longest_row(), &snapshot, &style, cx)
3869 .unwrap()
3870 .width;
3871 let mut scroll_width =
3872 longest_line_width.max(max_visible_line_width) + overscroll.width;
3873
3874 let mut blocks = cx.with_element_namespace("blocks", |cx| {
3875 self.build_blocks(
3876 start_row..end_row,
3877 &snapshot,
3878 &hitbox,
3879 &text_hitbox,
3880 &mut scroll_width,
3881 &gutter_dimensions,
3882 em_width,
3883 gutter_dimensions.width + gutter_dimensions.margin,
3884 line_height,
3885 &line_layouts,
3886 cx,
3887 )
3888 });
3889
3890 let scroll_pixel_position = point(
3891 scroll_position.x * em_width,
3892 scroll_position.y * line_height,
3893 );
3894
3895 let mut inline_blame = None;
3896 if let Some(newest_selection_head) = newest_selection_head {
3897 let display_row = newest_selection_head.row();
3898 if (start_row..end_row).contains(&display_row) {
3899 let line_layout = &line_layouts[(display_row - start_row) as usize];
3900 inline_blame = self.layout_inline_blame(
3901 display_row,
3902 &snapshot.display_snapshot,
3903 line_layout,
3904 em_width,
3905 content_origin,
3906 scroll_pixel_position,
3907 line_height,
3908 cx,
3909 );
3910 }
3911 }
3912
3913 let blamed_display_rows = self.layout_blame_entries(
3914 buffer_rows,
3915 em_width,
3916 scroll_position,
3917 line_height,
3918 &gutter_hitbox,
3919 gutter_dimensions.git_blame_entries_width,
3920 cx,
3921 );
3922
3923 let scroll_max = point(
3924 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
3925 max_row as f32,
3926 );
3927
3928 self.editor.update(cx, |editor, cx| {
3929 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
3930
3931 let autoscrolled = if autoscroll_horizontally {
3932 editor.autoscroll_horizontally(
3933 start_row,
3934 text_hitbox.size.width,
3935 scroll_width,
3936 em_width,
3937 &line_layouts,
3938 cx,
3939 )
3940 } else {
3941 false
3942 };
3943
3944 if clamped || autoscrolled {
3945 snapshot = editor.snapshot(cx);
3946 scroll_position = snapshot.scroll_position();
3947 }
3948 });
3949
3950 cx.with_element_namespace("blocks", |cx| {
3951 self.layout_blocks(
3952 &mut blocks,
3953 &hitbox,
3954 line_height,
3955 scroll_pixel_position,
3956 cx,
3957 );
3958 });
3959
3960 let cursors = self.collect_cursors(&snapshot, cx);
3961 let visible_row_range = start_row..end_row;
3962 let non_visible_cursors = cursors
3963 .iter()
3964 .any(move |c| !visible_row_range.contains(&c.0.row()));
3965
3966 let visible_cursors = self.layout_visible_cursors(
3967 &snapshot,
3968 &selections,
3969 start_row..end_row,
3970 &line_layouts,
3971 &text_hitbox,
3972 content_origin,
3973 scroll_position,
3974 scroll_pixel_position,
3975 line_height,
3976 em_width,
3977 autoscroll_containing_element,
3978 cx,
3979 );
3980
3981 let scrollbar_layout = self.layout_scrollbar(
3982 &snapshot,
3983 bounds,
3984 scroll_position,
3985 height_in_lines,
3986 non_visible_cursors,
3987 cx,
3988 );
3989
3990 let folds = cx.with_element_namespace("folds", |cx| {
3991 self.layout_folds(
3992 &snapshot,
3993 content_origin,
3994 start_anchor..end_anchor,
3995 start_row..end_row,
3996 scroll_pixel_position,
3997 line_height,
3998 &line_layouts,
3999 cx,
4000 )
4001 });
4002
4003 let gutter_settings = EditorSettings::get_global(cx).gutter;
4004
4005 let mut context_menu_visible = false;
4006 let mut code_actions_indicator = None;
4007 if let Some(newest_selection_head) = newest_selection_head {
4008 if (start_row..end_row).contains(&newest_selection_head.row()) {
4009 context_menu_visible = self.layout_context_menu(
4010 line_height,
4011 &hitbox,
4012 &text_hitbox,
4013 content_origin,
4014 start_row,
4015 scroll_pixel_position,
4016 &line_layouts,
4017 newest_selection_head,
4018 gutter_dimensions.width - gutter_dimensions.left_padding,
4019 cx,
4020 );
4021 if gutter_settings.code_actions {
4022 let has_test_indicator = self
4023 .editor
4024 .read(cx)
4025 .tasks
4026 .contains_key(&newest_selection_head.row());
4027 if !has_test_indicator {
4028 code_actions_indicator = self.layout_code_actions_indicator(
4029 line_height,
4030 newest_selection_head,
4031 scroll_pixel_position,
4032 &gutter_dimensions,
4033 &gutter_hitbox,
4034 cx,
4035 );
4036 }
4037 }
4038 }
4039 }
4040
4041 let test_indicators = self.layout_run_indicators(
4042 line_height,
4043 scroll_pixel_position,
4044 &gutter_dimensions,
4045 &gutter_hitbox,
4046 cx,
4047 );
4048
4049 if !context_menu_visible && !cx.has_active_drag() {
4050 self.layout_hover_popovers(
4051 &snapshot,
4052 &hitbox,
4053 &text_hitbox,
4054 start_row..end_row,
4055 content_origin,
4056 scroll_pixel_position,
4057 &line_layouts,
4058 line_height,
4059 em_width,
4060 cx,
4061 );
4062 }
4063
4064 let mouse_context_menu = self.layout_mouse_context_menu(cx);
4065
4066 let fold_indicators = if gutter_settings.folds {
4067 cx.with_element_namespace("gutter_fold_indicators", |cx| {
4068 self.layout_gutter_fold_indicators(
4069 fold_statuses,
4070 line_height,
4071 &gutter_dimensions,
4072 gutter_settings,
4073 scroll_pixel_position,
4074 &gutter_hitbox,
4075 cx,
4076 )
4077 })
4078 } else {
4079 Vec::new()
4080 };
4081
4082 let invisible_symbol_font_size = font_size / 2.;
4083 let tab_invisible = cx
4084 .text_system()
4085 .shape_line(
4086 "→".into(),
4087 invisible_symbol_font_size,
4088 &[TextRun {
4089 len: "→".len(),
4090 font: self.style.text.font(),
4091 color: cx.theme().colors().editor_invisible,
4092 background_color: None,
4093 underline: None,
4094 strikethrough: None,
4095 }],
4096 )
4097 .unwrap();
4098 let space_invisible = cx
4099 .text_system()
4100 .shape_line(
4101 "•".into(),
4102 invisible_symbol_font_size,
4103 &[TextRun {
4104 len: "•".len(),
4105 font: self.style.text.font(),
4106 color: cx.theme().colors().editor_invisible,
4107 background_color: None,
4108 underline: None,
4109 strikethrough: None,
4110 }],
4111 )
4112 .unwrap();
4113
4114 EditorLayout {
4115 mode: snapshot.mode,
4116 position_map: Arc::new(PositionMap {
4117 size: bounds.size,
4118 scroll_pixel_position,
4119 scroll_max,
4120 line_layouts,
4121 line_height,
4122 em_width,
4123 em_advance,
4124 snapshot,
4125 }),
4126 visible_display_row_range: start_row..end_row,
4127 wrap_guides,
4128 hitbox,
4129 text_hitbox,
4130 gutter_hitbox,
4131 gutter_dimensions,
4132 content_origin,
4133 scrollbar_layout,
4134 max_row,
4135 active_rows,
4136 highlighted_rows,
4137 highlighted_ranges,
4138 redacted_ranges,
4139 line_numbers,
4140 display_hunks,
4141 blamed_display_rows,
4142 inline_blame,
4143 folds,
4144 blocks,
4145 cursors,
4146 visible_cursors,
4147 selections,
4148 mouse_context_menu,
4149 test_indicators,
4150 code_actions_indicator,
4151 fold_indicators,
4152 tab_invisible,
4153 space_invisible,
4154 }
4155 })
4156 })
4157 }
4158
4159 fn paint(
4160 &mut self,
4161 _: Option<&GlobalElementId>,
4162 bounds: Bounds<gpui::Pixels>,
4163 _: &mut Self::RequestLayoutState,
4164 layout: &mut Self::PrepaintState,
4165 cx: &mut WindowContext,
4166 ) {
4167 let focus_handle = self.editor.focus_handle(cx);
4168 let key_context = self.editor.read(cx).key_context(cx);
4169 cx.set_focus_handle(&focus_handle);
4170 cx.set_key_context(key_context);
4171 cx.handle_input(
4172 &focus_handle,
4173 ElementInputHandler::new(bounds, self.editor.clone()),
4174 );
4175 self.register_actions(cx);
4176 self.register_key_listeners(cx, layout);
4177
4178 let text_style = TextStyleRefinement {
4179 font_size: Some(self.style.text.font_size),
4180 line_height: Some(self.style.text.line_height),
4181 ..Default::default()
4182 };
4183 let mouse_position = cx.mouse_position();
4184 let hovered_hunk = layout
4185 .display_hunks
4186 .iter()
4187 .find_map(|(hunk, hunk_hitbox)| match hunk {
4188 DisplayDiffHunk::Folded { .. } => None,
4189 DisplayDiffHunk::Unfolded {
4190 diff_base_byte_range,
4191 multi_buffer_range,
4192 status,
4193 ..
4194 } => {
4195 if hunk_hitbox
4196 .as_ref()
4197 .map(|hitbox| hitbox.contains(&mouse_position))
4198 .unwrap_or(false)
4199 {
4200 Some(HunkToExpand {
4201 status: *status,
4202 multi_buffer_range: multi_buffer_range.clone(),
4203 diff_base_byte_range: diff_base_byte_range.clone(),
4204 })
4205 } else {
4206 None
4207 }
4208 }
4209 });
4210 cx.with_text_style(Some(text_style), |cx| {
4211 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
4212 self.paint_mouse_listeners(layout, hovered_hunk, cx);
4213 self.paint_background(layout, cx);
4214 if layout.gutter_hitbox.size.width > Pixels::ZERO {
4215 self.paint_gutter(layout, cx)
4216 }
4217
4218 self.paint_text(layout, cx);
4219
4220 if !layout.blocks.is_empty() {
4221 cx.with_element_namespace("blocks", |cx| {
4222 self.paint_blocks(layout, cx);
4223 });
4224 }
4225
4226 self.paint_scrollbar(layout, cx);
4227 self.paint_mouse_context_menu(layout, cx);
4228 });
4229 })
4230 }
4231}
4232
4233impl IntoElement for EditorElement {
4234 type Element = Self;
4235
4236 fn into_element(self) -> Self::Element {
4237 self
4238 }
4239}
4240
4241type BufferRow = u32;
4242
4243pub struct EditorLayout {
4244 position_map: Arc<PositionMap>,
4245 hitbox: Hitbox,
4246 text_hitbox: Hitbox,
4247 gutter_hitbox: Hitbox,
4248 gutter_dimensions: GutterDimensions,
4249 content_origin: gpui::Point<Pixels>,
4250 scrollbar_layout: Option<ScrollbarLayout>,
4251 mode: EditorMode,
4252 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
4253 visible_display_row_range: Range<u32>,
4254 active_rows: BTreeMap<u32, bool>,
4255 highlighted_rows: BTreeMap<u32, Hsla>,
4256 line_numbers: Vec<Option<ShapedLine>>,
4257 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
4258 blamed_display_rows: Option<Vec<AnyElement>>,
4259 inline_blame: Option<AnyElement>,
4260 folds: Vec<FoldLayout>,
4261 blocks: Vec<BlockLayout>,
4262 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
4263 redacted_ranges: Vec<Range<DisplayPoint>>,
4264 cursors: Vec<(DisplayPoint, Hsla)>,
4265 visible_cursors: Vec<CursorLayout>,
4266 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
4267 max_row: u32,
4268 code_actions_indicator: Option<AnyElement>,
4269 test_indicators: Vec<AnyElement>,
4270 fold_indicators: Vec<Option<AnyElement>>,
4271 mouse_context_menu: Option<AnyElement>,
4272 tab_invisible: ShapedLine,
4273 space_invisible: ShapedLine,
4274}
4275
4276impl EditorLayout {
4277 fn line_end_overshoot(&self) -> Pixels {
4278 0.15 * self.position_map.line_height
4279 }
4280}
4281
4282struct ColoredRange<T> {
4283 start: T,
4284 end: T,
4285 color: Hsla,
4286}
4287
4288#[derive(Clone)]
4289struct ScrollbarLayout {
4290 hitbox: Hitbox,
4291 visible_row_range: Range<f32>,
4292 visible: bool,
4293 row_height: Pixels,
4294 thumb_height: Pixels,
4295}
4296
4297impl ScrollbarLayout {
4298 const BORDER_WIDTH: Pixels = px(1.0);
4299 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
4300 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
4301 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
4302
4303 fn thumb_bounds(&self) -> Bounds<Pixels> {
4304 let thumb_top = self.y_for_row(self.visible_row_range.start);
4305 let thumb_bottom = thumb_top + self.thumb_height;
4306 Bounds::from_corners(
4307 point(self.hitbox.left(), thumb_top),
4308 point(self.hitbox.right(), thumb_bottom),
4309 )
4310 }
4311
4312 fn y_for_row(&self, row: f32) -> Pixels {
4313 self.hitbox.top() + row * self.row_height
4314 }
4315
4316 fn marker_quads_for_ranges(
4317 &self,
4318 row_ranges: impl IntoIterator<Item = ColoredRange<u32>>,
4319 column: Option<usize>,
4320 ) -> Vec<PaintQuad> {
4321 struct MinMax {
4322 min: Pixels,
4323 max: Pixels,
4324 }
4325 let (x_range, height_limit) = if let Some(column) = column {
4326 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
4327 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
4328 let end = start + column_width;
4329 (
4330 Range { start, end },
4331 MinMax {
4332 min: Self::MIN_MARKER_HEIGHT,
4333 max: px(f32::MAX),
4334 },
4335 )
4336 } else {
4337 (
4338 Range {
4339 start: Self::BORDER_WIDTH,
4340 end: self.hitbox.size.width,
4341 },
4342 MinMax {
4343 min: Self::LINE_MARKER_HEIGHT,
4344 max: Self::LINE_MARKER_HEIGHT,
4345 },
4346 )
4347 };
4348
4349 let row_to_y = |row: u32| row as f32 * self.row_height;
4350 let mut pixel_ranges = row_ranges
4351 .into_iter()
4352 .map(|range| {
4353 let start_y = row_to_y(range.start);
4354 let end_y = row_to_y(range.end)
4355 + self.row_height.max(height_limit.min).min(height_limit.max);
4356 ColoredRange {
4357 start: start_y,
4358 end: end_y,
4359 color: range.color,
4360 }
4361 })
4362 .peekable();
4363
4364 let mut quads = Vec::new();
4365 while let Some(mut pixel_range) = pixel_ranges.next() {
4366 while let Some(next_pixel_range) = pixel_ranges.peek() {
4367 if pixel_range.end >= next_pixel_range.start - px(1.0)
4368 && pixel_range.color == next_pixel_range.color
4369 {
4370 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
4371 pixel_ranges.next();
4372 } else {
4373 break;
4374 }
4375 }
4376
4377 let bounds = Bounds::from_corners(
4378 point(x_range.start, pixel_range.start),
4379 point(x_range.end, pixel_range.end),
4380 );
4381 quads.push(quad(
4382 bounds,
4383 Corners::default(),
4384 pixel_range.color,
4385 Edges::default(),
4386 Hsla::transparent_black(),
4387 ));
4388 }
4389
4390 quads
4391 }
4392}
4393
4394struct FoldLayout {
4395 display_range: Range<DisplayPoint>,
4396 hover_element: AnyElement,
4397}
4398
4399struct PositionMap {
4400 size: Size<Pixels>,
4401 line_height: Pixels,
4402 scroll_pixel_position: gpui::Point<Pixels>,
4403 scroll_max: gpui::Point<f32>,
4404 em_width: Pixels,
4405 em_advance: Pixels,
4406 line_layouts: Vec<LineWithInvisibles>,
4407 snapshot: EditorSnapshot,
4408}
4409
4410#[derive(Debug, Copy, Clone)]
4411pub struct PointForPosition {
4412 pub previous_valid: DisplayPoint,
4413 pub next_valid: DisplayPoint,
4414 pub exact_unclipped: DisplayPoint,
4415 pub column_overshoot_after_line_end: u32,
4416}
4417
4418impl PointForPosition {
4419 pub fn as_valid(&self) -> Option<DisplayPoint> {
4420 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
4421 Some(self.previous_valid)
4422 } else {
4423 None
4424 }
4425 }
4426}
4427
4428impl PositionMap {
4429 fn point_for_position(
4430 &self,
4431 text_bounds: Bounds<Pixels>,
4432 position: gpui::Point<Pixels>,
4433 ) -> PointForPosition {
4434 let scroll_position = self.snapshot.scroll_position();
4435 let position = position - text_bounds.origin;
4436 let y = position.y.max(px(0.)).min(self.size.height);
4437 let x = position.x + (scroll_position.x * self.em_width);
4438 let row = ((y / self.line_height) + scroll_position.y) as u32;
4439
4440 let (column, x_overshoot_after_line_end) = if let Some(line) = self
4441 .line_layouts
4442 .get(row as usize - scroll_position.y as usize)
4443 .map(|LineWithInvisibles { line, .. }| line)
4444 {
4445 if let Some(ix) = line.index_for_x(x) {
4446 (ix as u32, px(0.))
4447 } else {
4448 (line.len as u32, px(0.).max(x - line.width))
4449 }
4450 } else {
4451 (0, x)
4452 };
4453
4454 let mut exact_unclipped = DisplayPoint::new(row, column);
4455 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
4456 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
4457
4458 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
4459 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
4460 PointForPosition {
4461 previous_valid,
4462 next_valid,
4463 exact_unclipped,
4464 column_overshoot_after_line_end,
4465 }
4466 }
4467}
4468
4469struct BlockLayout {
4470 row: u32,
4471 element: AnyElement,
4472 available_space: Size<AvailableSpace>,
4473 style: BlockStyle,
4474}
4475
4476fn layout_line(
4477 row: u32,
4478 snapshot: &EditorSnapshot,
4479 style: &EditorStyle,
4480 cx: &WindowContext,
4481) -> Result<ShapedLine> {
4482 let mut line = snapshot.line(row);
4483
4484 if line.len() > MAX_LINE_LEN {
4485 let mut len = MAX_LINE_LEN;
4486 while !line.is_char_boundary(len) {
4487 len -= 1;
4488 }
4489
4490 line.truncate(len);
4491 }
4492
4493 cx.text_system().shape_line(
4494 line.into(),
4495 style.text.font_size.to_pixels(cx.rem_size()),
4496 &[TextRun {
4497 len: snapshot.line_len(row) as usize,
4498 font: style.text.font(),
4499 color: Hsla::default(),
4500 background_color: None,
4501 underline: None,
4502 strikethrough: None,
4503 }],
4504 )
4505}
4506
4507pub struct CursorLayout {
4508 origin: gpui::Point<Pixels>,
4509 block_width: Pixels,
4510 line_height: Pixels,
4511 color: Hsla,
4512 shape: CursorShape,
4513 block_text: Option<ShapedLine>,
4514 cursor_name: Option<AnyElement>,
4515}
4516
4517#[derive(Debug)]
4518pub struct CursorName {
4519 string: SharedString,
4520 color: Hsla,
4521 is_top_row: bool,
4522}
4523
4524impl CursorLayout {
4525 pub fn new(
4526 origin: gpui::Point<Pixels>,
4527 block_width: Pixels,
4528 line_height: Pixels,
4529 color: Hsla,
4530 shape: CursorShape,
4531 block_text: Option<ShapedLine>,
4532 ) -> CursorLayout {
4533 CursorLayout {
4534 origin,
4535 block_width,
4536 line_height,
4537 color,
4538 shape,
4539 block_text,
4540 cursor_name: None,
4541 }
4542 }
4543
4544 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4545 Bounds {
4546 origin: self.origin + origin,
4547 size: size(self.block_width, self.line_height),
4548 }
4549 }
4550
4551 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
4552 match self.shape {
4553 CursorShape::Bar => Bounds {
4554 origin: self.origin + origin,
4555 size: size(px(2.0), self.line_height),
4556 },
4557 CursorShape::Block | CursorShape::Hollow => Bounds {
4558 origin: self.origin + origin,
4559 size: size(self.block_width, self.line_height),
4560 },
4561 CursorShape::Underscore => Bounds {
4562 origin: self.origin
4563 + origin
4564 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
4565 size: size(self.block_width, px(2.0)),
4566 },
4567 }
4568 }
4569
4570 pub fn layout(
4571 &mut self,
4572 origin: gpui::Point<Pixels>,
4573 cursor_name: Option<CursorName>,
4574 cx: &mut WindowContext,
4575 ) {
4576 if let Some(cursor_name) = cursor_name {
4577 let bounds = self.bounds(origin);
4578 let text_size = self.line_height / 1.5;
4579
4580 let name_origin = if cursor_name.is_top_row {
4581 point(bounds.right() - px(1.), bounds.top())
4582 } else {
4583 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
4584 };
4585 let mut name_element = div()
4586 .bg(self.color)
4587 .text_size(text_size)
4588 .px_0p5()
4589 .line_height(text_size + px(2.))
4590 .text_color(cursor_name.color)
4591 .child(cursor_name.string.clone())
4592 .into_any_element();
4593
4594 name_element.prepaint_as_root(
4595 name_origin,
4596 size(AvailableSpace::MinContent, AvailableSpace::MinContent),
4597 cx,
4598 );
4599
4600 self.cursor_name = Some(name_element);
4601 }
4602 }
4603
4604 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
4605 let bounds = self.bounds(origin);
4606
4607 //Draw background or border quad
4608 let cursor = if matches!(self.shape, CursorShape::Hollow) {
4609 outline(bounds, self.color)
4610 } else {
4611 fill(bounds, self.color)
4612 };
4613
4614 if let Some(name) = &mut self.cursor_name {
4615 name.paint(cx);
4616 }
4617
4618 cx.paint_quad(cursor);
4619
4620 if let Some(block_text) = &self.block_text {
4621 block_text
4622 .paint(self.origin + origin, self.line_height, cx)
4623 .log_err();
4624 }
4625 }
4626
4627 pub fn shape(&self) -> CursorShape {
4628 self.shape
4629 }
4630}
4631
4632#[derive(Debug)]
4633pub struct HighlightedRange {
4634 pub start_y: Pixels,
4635 pub line_height: Pixels,
4636 pub lines: Vec<HighlightedRangeLine>,
4637 pub color: Hsla,
4638 pub corner_radius: Pixels,
4639}
4640
4641#[derive(Debug)]
4642pub struct HighlightedRangeLine {
4643 pub start_x: Pixels,
4644 pub end_x: Pixels,
4645}
4646
4647impl HighlightedRange {
4648 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
4649 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
4650 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
4651 self.paint_lines(
4652 self.start_y + self.line_height,
4653 &self.lines[1..],
4654 bounds,
4655 cx,
4656 );
4657 } else {
4658 self.paint_lines(self.start_y, &self.lines, bounds, cx);
4659 }
4660 }
4661
4662 fn paint_lines(
4663 &self,
4664 start_y: Pixels,
4665 lines: &[HighlightedRangeLine],
4666 _bounds: Bounds<Pixels>,
4667 cx: &mut WindowContext,
4668 ) {
4669 if lines.is_empty() {
4670 return;
4671 }
4672
4673 let first_line = lines.first().unwrap();
4674 let last_line = lines.last().unwrap();
4675
4676 let first_top_left = point(first_line.start_x, start_y);
4677 let first_top_right = point(first_line.end_x, start_y);
4678
4679 let curve_height = point(Pixels::ZERO, self.corner_radius);
4680 let curve_width = |start_x: Pixels, end_x: Pixels| {
4681 let max = (end_x - start_x) / 2.;
4682 let width = if max < self.corner_radius {
4683 max
4684 } else {
4685 self.corner_radius
4686 };
4687
4688 point(width, Pixels::ZERO)
4689 };
4690
4691 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
4692 let mut path = gpui::Path::new(first_top_right - top_curve_width);
4693 path.curve_to(first_top_right + curve_height, first_top_right);
4694
4695 let mut iter = lines.iter().enumerate().peekable();
4696 while let Some((ix, line)) = iter.next() {
4697 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
4698
4699 if let Some((_, next_line)) = iter.peek() {
4700 let next_top_right = point(next_line.end_x, bottom_right.y);
4701
4702 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
4703 Ordering::Equal => {
4704 path.line_to(bottom_right);
4705 }
4706 Ordering::Less => {
4707 let curve_width = curve_width(next_top_right.x, bottom_right.x);
4708 path.line_to(bottom_right - curve_height);
4709 if self.corner_radius > Pixels::ZERO {
4710 path.curve_to(bottom_right - curve_width, bottom_right);
4711 }
4712 path.line_to(next_top_right + curve_width);
4713 if self.corner_radius > Pixels::ZERO {
4714 path.curve_to(next_top_right + curve_height, next_top_right);
4715 }
4716 }
4717 Ordering::Greater => {
4718 let curve_width = curve_width(bottom_right.x, next_top_right.x);
4719 path.line_to(bottom_right - curve_height);
4720 if self.corner_radius > Pixels::ZERO {
4721 path.curve_to(bottom_right + curve_width, bottom_right);
4722 }
4723 path.line_to(next_top_right - curve_width);
4724 if self.corner_radius > Pixels::ZERO {
4725 path.curve_to(next_top_right + curve_height, next_top_right);
4726 }
4727 }
4728 }
4729 } else {
4730 let curve_width = curve_width(line.start_x, line.end_x);
4731 path.line_to(bottom_right - curve_height);
4732 if self.corner_radius > Pixels::ZERO {
4733 path.curve_to(bottom_right - curve_width, bottom_right);
4734 }
4735
4736 let bottom_left = point(line.start_x, bottom_right.y);
4737 path.line_to(bottom_left + curve_width);
4738 if self.corner_radius > Pixels::ZERO {
4739 path.curve_to(bottom_left - curve_height, bottom_left);
4740 }
4741 }
4742 }
4743
4744 if first_line.start_x > last_line.start_x {
4745 let curve_width = curve_width(last_line.start_x, first_line.start_x);
4746 let second_top_left = point(last_line.start_x, start_y + self.line_height);
4747 path.line_to(second_top_left + curve_height);
4748 if self.corner_radius > Pixels::ZERO {
4749 path.curve_to(second_top_left + curve_width, second_top_left);
4750 }
4751 let first_bottom_left = point(first_line.start_x, second_top_left.y);
4752 path.line_to(first_bottom_left - curve_width);
4753 if self.corner_radius > Pixels::ZERO {
4754 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
4755 }
4756 }
4757
4758 path.line_to(first_top_left + curve_height);
4759 if self.corner_radius > Pixels::ZERO {
4760 path.curve_to(first_top_left + top_curve_width, first_top_left);
4761 }
4762 path.line_to(first_top_right - top_curve_width);
4763
4764 cx.paint_path(path, self.color);
4765 }
4766}
4767
4768pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4769 (delta.pow(1.5) / 100.0).into()
4770}
4771
4772fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
4773 (delta.pow(1.2) / 300.0).into()
4774}
4775
4776#[cfg(test)]
4777mod tests {
4778 use super::*;
4779 use crate::{
4780 display_map::{BlockDisposition, BlockProperties},
4781 editor_tests::{init_test, update_test_language_settings},
4782 Editor, MultiBuffer,
4783 };
4784 use gpui::{TestAppContext, VisualTestContext};
4785 use language::language_settings;
4786 use log::info;
4787 use std::num::NonZeroU32;
4788 use ui::Context;
4789 use util::test::sample_text;
4790
4791 #[gpui::test]
4792 fn test_shape_line_numbers(cx: &mut TestAppContext) {
4793 init_test(cx, |_| {});
4794 let window = cx.add_window(|cx| {
4795 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
4796 Editor::new(EditorMode::Full, buffer, None, cx)
4797 });
4798
4799 let editor = window.root(cx).unwrap();
4800 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4801 let element = EditorElement::new(&editor, style);
4802 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
4803
4804 let layouts = cx
4805 .update_window(*window, |_, cx| {
4806 element
4807 .layout_line_numbers(
4808 0..6,
4809 (0..6).map(Some),
4810 &Default::default(),
4811 Some(DisplayPoint::new(0, 0)),
4812 &snapshot,
4813 cx,
4814 )
4815 .0
4816 })
4817 .unwrap();
4818 assert_eq!(layouts.len(), 6);
4819
4820 let relative_rows = window
4821 .update(cx, |editor, cx| {
4822 let snapshot = editor.snapshot(cx);
4823 element.calculate_relative_line_numbers(&snapshot, &(0..6), Some(3))
4824 })
4825 .unwrap();
4826 assert_eq!(relative_rows[&0], 3);
4827 assert_eq!(relative_rows[&1], 2);
4828 assert_eq!(relative_rows[&2], 1);
4829 // current line has no relative number
4830 assert_eq!(relative_rows[&4], 1);
4831 assert_eq!(relative_rows[&5], 2);
4832
4833 // works if cursor is before screen
4834 let relative_rows = window
4835 .update(cx, |editor, cx| {
4836 let snapshot = editor.snapshot(cx);
4837 element.calculate_relative_line_numbers(&snapshot, &(3..6), Some(1))
4838 })
4839 .unwrap();
4840 assert_eq!(relative_rows.len(), 3);
4841 assert_eq!(relative_rows[&3], 2);
4842 assert_eq!(relative_rows[&4], 3);
4843 assert_eq!(relative_rows[&5], 4);
4844
4845 // works if cursor is after screen
4846 let relative_rows = window
4847 .update(cx, |editor, cx| {
4848 let snapshot = editor.snapshot(cx);
4849 element.calculate_relative_line_numbers(&snapshot, &(0..3), Some(6))
4850 })
4851 .unwrap();
4852 assert_eq!(relative_rows.len(), 3);
4853 assert_eq!(relative_rows[&0], 5);
4854 assert_eq!(relative_rows[&1], 4);
4855 assert_eq!(relative_rows[&2], 3);
4856 }
4857
4858 #[gpui::test]
4859 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
4860 init_test(cx, |_| {});
4861
4862 let window = cx.add_window(|cx| {
4863 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
4864 Editor::new(EditorMode::Full, buffer, None, cx)
4865 });
4866 let cx = &mut VisualTestContext::from_window(*window, cx);
4867 let editor = window.root(cx).unwrap();
4868 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4869
4870 window
4871 .update(cx, |editor, cx| {
4872 editor.cursor_shape = CursorShape::Block;
4873 editor.change_selections(None, cx, |s| {
4874 s.select_ranges([
4875 Point::new(0, 0)..Point::new(1, 0),
4876 Point::new(3, 2)..Point::new(3, 3),
4877 Point::new(5, 6)..Point::new(6, 0),
4878 ]);
4879 });
4880 })
4881 .unwrap();
4882
4883 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
4884 EditorElement::new(&editor, style)
4885 });
4886
4887 assert_eq!(state.selections.len(), 1);
4888 let local_selections = &state.selections[0].1;
4889 assert_eq!(local_selections.len(), 3);
4890 // moves cursor back one line
4891 assert_eq!(local_selections[0].head, DisplayPoint::new(0, 6));
4892 assert_eq!(
4893 local_selections[0].range,
4894 DisplayPoint::new(0, 0)..DisplayPoint::new(1, 0)
4895 );
4896
4897 // moves cursor back one column
4898 assert_eq!(
4899 local_selections[1].range,
4900 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 3)
4901 );
4902 assert_eq!(local_selections[1].head, DisplayPoint::new(3, 2));
4903
4904 // leaves cursor on the max point
4905 assert_eq!(
4906 local_selections[2].range,
4907 DisplayPoint::new(5, 6)..DisplayPoint::new(6, 0)
4908 );
4909 assert_eq!(local_selections[2].head, DisplayPoint::new(6, 0));
4910
4911 // active lines does not include 1 (even though the range of the selection does)
4912 assert_eq!(
4913 state.active_rows.keys().cloned().collect::<Vec<u32>>(),
4914 vec![0, 3, 5, 6]
4915 );
4916
4917 // multi-buffer support
4918 // in DisplayPoint coordinates, this is what we're dealing with:
4919 // 0: [[file
4920 // 1: header]]
4921 // 2: aaaaaa
4922 // 3: bbbbbb
4923 // 4: cccccc
4924 // 5:
4925 // 6: ...
4926 // 7: ffffff
4927 // 8: gggggg
4928 // 9: hhhhhh
4929 // 10:
4930 // 11: [[file
4931 // 12: header]]
4932 // 13: bbbbbb
4933 // 14: cccccc
4934 // 15: dddddd
4935 let window = cx.add_window(|cx| {
4936 let buffer = MultiBuffer::build_multi(
4937 [
4938 (
4939 &(sample_text(8, 6, 'a') + "\n"),
4940 vec![
4941 Point::new(0, 0)..Point::new(3, 0),
4942 Point::new(4, 0)..Point::new(7, 0),
4943 ],
4944 ),
4945 (
4946 &(sample_text(8, 6, 'a') + "\n"),
4947 vec![Point::new(1, 0)..Point::new(3, 0)],
4948 ),
4949 ],
4950 cx,
4951 );
4952 Editor::new(EditorMode::Full, buffer, None, cx)
4953 });
4954 let editor = window.root(cx).unwrap();
4955 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
4956 let _state = window.update(cx, |editor, cx| {
4957 editor.cursor_shape = CursorShape::Block;
4958 editor.change_selections(None, cx, |s| {
4959 s.select_display_ranges([
4960 DisplayPoint::new(4, 0)..DisplayPoint::new(7, 0),
4961 DisplayPoint::new(10, 0)..DisplayPoint::new(13, 0),
4962 ]);
4963 });
4964 });
4965
4966 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
4967 EditorElement::new(&editor, style)
4968 });
4969 assert_eq!(state.selections.len(), 1);
4970 let local_selections = &state.selections[0].1;
4971 assert_eq!(local_selections.len(), 2);
4972
4973 // moves cursor on excerpt boundary back a line
4974 // and doesn't allow selection to bleed through
4975 assert_eq!(
4976 local_selections[0].range,
4977 DisplayPoint::new(4, 0)..DisplayPoint::new(6, 0)
4978 );
4979 assert_eq!(local_selections[0].head, DisplayPoint::new(5, 0));
4980 // moves cursor on buffer boundary back two lines
4981 // and doesn't allow selection to bleed through
4982 assert_eq!(
4983 local_selections[1].range,
4984 DisplayPoint::new(10, 0)..DisplayPoint::new(11, 0)
4985 );
4986 assert_eq!(local_selections[1].head, DisplayPoint::new(10, 0));
4987 }
4988
4989 #[gpui::test]
4990 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
4991 init_test(cx, |_| {});
4992
4993 let window = cx.add_window(|cx| {
4994 let buffer = MultiBuffer::build_simple("", cx);
4995 Editor::new(EditorMode::Full, buffer, None, cx)
4996 });
4997 let cx = &mut VisualTestContext::from_window(*window, cx);
4998 let editor = window.root(cx).unwrap();
4999 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5000 window
5001 .update(cx, |editor, cx| {
5002 editor.set_placeholder_text("hello", cx);
5003 editor.insert_blocks(
5004 [BlockProperties {
5005 style: BlockStyle::Fixed,
5006 disposition: BlockDisposition::Above,
5007 height: 3,
5008 position: Anchor::min(),
5009 render: Box::new(|_| div().into_any()),
5010 }],
5011 None,
5012 cx,
5013 );
5014
5015 // Blur the editor so that it displays placeholder text.
5016 cx.blur();
5017 })
5018 .unwrap();
5019
5020 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5021 EditorElement::new(&editor, style)
5022 });
5023 assert_eq!(state.position_map.line_layouts.len(), 4);
5024 assert_eq!(
5025 state
5026 .line_numbers
5027 .iter()
5028 .map(Option::is_some)
5029 .collect::<Vec<_>>(),
5030 &[false, false, false, true]
5031 );
5032 }
5033
5034 #[gpui::test]
5035 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
5036 const TAB_SIZE: u32 = 4;
5037
5038 let input_text = "\t \t|\t| a b";
5039 let expected_invisibles = vec![
5040 Invisible::Tab {
5041 line_start_offset: 0,
5042 },
5043 Invisible::Whitespace {
5044 line_offset: TAB_SIZE as usize,
5045 },
5046 Invisible::Tab {
5047 line_start_offset: TAB_SIZE as usize + 1,
5048 },
5049 Invisible::Tab {
5050 line_start_offset: TAB_SIZE as usize * 2 + 1,
5051 },
5052 Invisible::Whitespace {
5053 line_offset: TAB_SIZE as usize * 3 + 1,
5054 },
5055 Invisible::Whitespace {
5056 line_offset: TAB_SIZE as usize * 3 + 3,
5057 },
5058 ];
5059 assert_eq!(
5060 expected_invisibles.len(),
5061 input_text
5062 .chars()
5063 .filter(|initial_char| initial_char.is_whitespace())
5064 .count(),
5065 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5066 );
5067
5068 init_test(cx, |s| {
5069 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5070 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
5071 });
5072
5073 let actual_invisibles =
5074 collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, px(500.0));
5075
5076 assert_eq!(expected_invisibles, actual_invisibles);
5077 }
5078
5079 #[gpui::test]
5080 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
5081 init_test(cx, |s| {
5082 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5083 s.defaults.tab_size = NonZeroU32::new(4);
5084 });
5085
5086 for editor_mode_without_invisibles in [
5087 EditorMode::SingleLine,
5088 EditorMode::AutoHeight { max_lines: 100 },
5089 ] {
5090 let invisibles = collect_invisibles_from_new_editor(
5091 cx,
5092 editor_mode_without_invisibles,
5093 "\t\t\t| | a b",
5094 px(500.0),
5095 );
5096 assert!(invisibles.is_empty(),
5097 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
5098 }
5099 }
5100
5101 #[gpui::test]
5102 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
5103 let tab_size = 4;
5104 let input_text = "a\tbcd ".repeat(9);
5105 let repeated_invisibles = [
5106 Invisible::Tab {
5107 line_start_offset: 1,
5108 },
5109 Invisible::Whitespace {
5110 line_offset: tab_size as usize + 3,
5111 },
5112 Invisible::Whitespace {
5113 line_offset: tab_size as usize + 4,
5114 },
5115 Invisible::Whitespace {
5116 line_offset: tab_size as usize + 5,
5117 },
5118 ];
5119 let expected_invisibles = std::iter::once(repeated_invisibles)
5120 .cycle()
5121 .take(9)
5122 .flatten()
5123 .collect::<Vec<_>>();
5124 assert_eq!(
5125 expected_invisibles.len(),
5126 input_text
5127 .chars()
5128 .filter(|initial_char| initial_char.is_whitespace())
5129 .count(),
5130 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5131 );
5132 info!("Expected invisibles: {expected_invisibles:?}");
5133
5134 init_test(cx, |_| {});
5135
5136 // Put the same string with repeating whitespace pattern into editors of various size,
5137 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
5138 let resize_step = 10.0;
5139 let mut editor_width = 200.0;
5140 while editor_width <= 1000.0 {
5141 update_test_language_settings(cx, |s| {
5142 s.defaults.tab_size = NonZeroU32::new(tab_size);
5143 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5144 s.defaults.preferred_line_length = Some(editor_width as u32);
5145 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
5146 });
5147
5148 let actual_invisibles = collect_invisibles_from_new_editor(
5149 cx,
5150 EditorMode::Full,
5151 &input_text,
5152 px(editor_width),
5153 );
5154
5155 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
5156 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
5157 let mut i = 0;
5158 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
5159 i = actual_index;
5160 match expected_invisibles.get(i) {
5161 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
5162 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
5163 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
5164 _ => {
5165 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
5166 }
5167 },
5168 None => panic!("Unexpected extra invisible {actual_invisible:?} at index {i}"),
5169 }
5170 }
5171 let missing_expected_invisibles = &expected_invisibles[i + 1..];
5172 assert!(
5173 missing_expected_invisibles.is_empty(),
5174 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
5175 );
5176
5177 editor_width += resize_step;
5178 }
5179 }
5180
5181 fn collect_invisibles_from_new_editor(
5182 cx: &mut TestAppContext,
5183 editor_mode: EditorMode,
5184 input_text: &str,
5185 editor_width: Pixels,
5186 ) -> Vec<Invisible> {
5187 info!(
5188 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
5189 editor_width.0
5190 );
5191 let window = cx.add_window(|cx| {
5192 let buffer = MultiBuffer::build_simple(&input_text, cx);
5193 Editor::new(editor_mode, buffer, None, cx)
5194 });
5195 let cx = &mut VisualTestContext::from_window(*window, cx);
5196 let editor = window.root(cx).unwrap();
5197 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5198 window
5199 .update(cx, |editor, cx| {
5200 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
5201 editor.set_wrap_width(Some(editor_width), cx);
5202 })
5203 .unwrap();
5204 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5205 EditorElement::new(&editor, style)
5206 });
5207 state
5208 .position_map
5209 .line_layouts
5210 .iter()
5211 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
5212 .cloned()
5213 .collect()
5214 }
5215}
5216
5217pub fn register_action<T: Action>(
5218 view: &View<Editor>,
5219 cx: &mut WindowContext,
5220 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
5221) {
5222 let view = view.clone();
5223 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
5224 let action = action.downcast_ref().unwrap();
5225 if phase == DispatchPhase::Bubble {
5226 view.update(cx, |editor, cx| {
5227 listener(editor, action, cx);
5228 })
5229 }
5230 })
5231}
5232
5233fn compute_auto_height_layout(
5234 editor: &mut Editor,
5235 max_lines: usize,
5236 max_line_number_width: Pixels,
5237 known_dimensions: Size<Option<Pixels>>,
5238 cx: &mut ViewContext<Editor>,
5239) -> Option<Size<Pixels>> {
5240 let width = known_dimensions.width?;
5241 if let Some(height) = known_dimensions.height {
5242 return Some(size(width, height));
5243 }
5244
5245 let style = editor.style.as_ref().unwrap();
5246 let font_id = cx.text_system().resolve_font(&style.text.font());
5247 let font_size = style.text.font_size.to_pixels(cx.rem_size());
5248 let line_height = style.text.line_height_in_pixels(cx.rem_size());
5249 let em_width = cx
5250 .text_system()
5251 .typographic_bounds(font_id, font_size, 'm')
5252 .unwrap()
5253 .size
5254 .width;
5255
5256 let mut snapshot = editor.snapshot(cx);
5257 let gutter_dimensions =
5258 snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
5259
5260 editor.gutter_dimensions = gutter_dimensions;
5261 let text_width = width - gutter_dimensions.width;
5262 let overscroll = size(em_width, px(0.));
5263
5264 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
5265 if editor.set_wrap_width(Some(editor_width), cx) {
5266 snapshot = editor.snapshot(cx);
5267 }
5268
5269 let scroll_height = Pixels::from(snapshot.max_point().row() + 1) * line_height;
5270 let height = scroll_height
5271 .max(line_height)
5272 .min(line_height * max_lines as f32);
5273
5274 Some(size(width, height))
5275}