1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::{CommitDetails, GitBlame},
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point,
23 RevertSelectedHunks, RowExt, RowRangeExt, SelectPhase, Selection, SoftWrap,
24 StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use client::ParticipantIndex;
28use collections::{BTreeMap, HashMap, HashSet};
29use file_icons::FileIcons;
30use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
31use gpui::{
32 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
33 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
34 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
35 Edges, Element, ElementInputHandler, Entity, FocusHandle, Focusable as _, FontId,
36 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
37 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
38 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
39 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
40 WeakEntity, Window,
41};
42use itertools::Itertools;
43use language::{
44 language_settings::{
45 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
46 ShowWhitespaceSetting,
47 },
48 ChunkRendererContext,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
53 RowInfo, ToOffset,
54};
55use project::project_settings::{GitGutterSetting, ProjectSettings};
56use settings::Settings;
57use smallvec::{smallvec, SmallVec};
58use std::{
59 any::TypeId,
60 borrow::Cow,
61 cmp::{self, Ordering},
62 fmt::{self, Write},
63 iter, mem,
64 ops::{Deref, Range},
65 rc::Rc,
66 sync::Arc,
67};
68use sum_tree::Bias;
69use text::BufferId;
70use theme::{ActiveTheme, Appearance, PlayerColor};
71use ui::{
72 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
73 POPOVER_Y_PADDING,
74};
75use unicode_segmentation::UnicodeSegmentation;
76use util::{RangeExt, ResultExt};
77use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
78
79const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
80
81#[derive(Debug, Clone, PartialEq, Eq)]
82enum DisplayDiffHunk {
83 Folded {
84 display_row: DisplayRow,
85 },
86
87 Unfolded {
88 diff_base_byte_range: Range<usize>,
89 display_row_range: Range<DisplayRow>,
90 multi_buffer_range: Range<Anchor>,
91 status: DiffHunkStatus,
92 },
93}
94
95struct SelectionLayout {
96 head: DisplayPoint,
97 cursor_shape: CursorShape,
98 is_newest: bool,
99 is_local: bool,
100 range: Range<DisplayPoint>,
101 active_rows: Range<DisplayRow>,
102 user_name: Option<SharedString>,
103}
104
105impl SelectionLayout {
106 fn new<T: ToPoint + ToDisplayPoint + Clone>(
107 selection: Selection<T>,
108 line_mode: bool,
109 cursor_shape: CursorShape,
110 map: &DisplaySnapshot,
111 is_newest: bool,
112 is_local: bool,
113 user_name: Option<SharedString>,
114 ) -> Self {
115 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
116 let display_selection = point_selection.map(|p| p.to_display_point(map));
117 let mut range = display_selection.range();
118 let mut head = display_selection.head();
119 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
120 ..map.next_line_boundary(point_selection.end).1.row();
121
122 // vim visual line mode
123 if line_mode {
124 let point_range = map.expand_to_line(point_selection.range());
125 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
126 }
127
128 // any vim visual mode (including line mode)
129 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
130 && !range.is_empty()
131 && !selection.reversed
132 {
133 if head.column() > 0 {
134 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
135 } else if head.row().0 > 0 && head != map.max_point() {
136 head = map.clip_point(
137 DisplayPoint::new(
138 head.row().previous_row(),
139 map.line_len(head.row().previous_row()),
140 ),
141 Bias::Left,
142 );
143 // updating range.end is a no-op unless you're cursor is
144 // on the newline containing a multi-buffer divider
145 // in which case the clip_point may have moved the head up
146 // an additional row.
147 range.end = DisplayPoint::new(head.row().next_row(), 0);
148 active_rows.end = head.row();
149 }
150 }
151
152 Self {
153 head,
154 cursor_shape,
155 is_newest,
156 is_local,
157 range,
158 active_rows,
159 user_name,
160 }
161 }
162}
163
164pub struct EditorElement {
165 editor: Entity<Editor>,
166 style: EditorStyle,
167}
168
169type DisplayRowDelta = u32;
170
171impl EditorElement {
172 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
173
174 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
175 Self {
176 editor: editor.clone(),
177 style,
178 }
179 }
180
181 fn register_actions(&self, window: &mut Window, cx: &mut App) {
182 let editor = &self.editor;
183 editor.update(cx, |editor, cx| {
184 for action in editor.editor_actions.borrow().values() {
185 (action)(window, cx)
186 }
187 });
188
189 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
190 crate::clangd_ext::apply_related_actions(editor, window, cx);
191 register_action(editor, window, Editor::open_context_menu);
192 register_action(editor, window, Editor::move_left);
193 register_action(editor, window, Editor::move_right);
194 register_action(editor, window, Editor::move_down);
195 register_action(editor, window, Editor::move_down_by_lines);
196 register_action(editor, window, Editor::select_down_by_lines);
197 register_action(editor, window, Editor::move_up);
198 register_action(editor, window, Editor::move_up_by_lines);
199 register_action(editor, window, Editor::select_up_by_lines);
200 register_action(editor, window, Editor::select_page_down);
201 register_action(editor, window, Editor::select_page_up);
202 register_action(editor, window, Editor::cancel);
203 register_action(editor, window, Editor::newline);
204 register_action(editor, window, Editor::newline_above);
205 register_action(editor, window, Editor::newline_below);
206 register_action(editor, window, Editor::backspace);
207 register_action(editor, window, Editor::delete);
208 register_action(editor, window, Editor::tab);
209 register_action(editor, window, Editor::tab_prev);
210 register_action(editor, window, Editor::indent);
211 register_action(editor, window, Editor::outdent);
212 register_action(editor, window, Editor::autoindent);
213 register_action(editor, window, Editor::delete_line);
214 register_action(editor, window, Editor::join_lines);
215 register_action(editor, window, Editor::sort_lines_case_sensitive);
216 register_action(editor, window, Editor::sort_lines_case_insensitive);
217 register_action(editor, window, Editor::reverse_lines);
218 register_action(editor, window, Editor::shuffle_lines);
219 register_action(editor, window, Editor::convert_to_upper_case);
220 register_action(editor, window, Editor::convert_to_lower_case);
221 register_action(editor, window, Editor::convert_to_title_case);
222 register_action(editor, window, Editor::convert_to_snake_case);
223 register_action(editor, window, Editor::convert_to_kebab_case);
224 register_action(editor, window, Editor::convert_to_upper_camel_case);
225 register_action(editor, window, Editor::convert_to_lower_camel_case);
226 register_action(editor, window, Editor::convert_to_opposite_case);
227 register_action(editor, window, Editor::delete_to_previous_word_start);
228 register_action(editor, window, Editor::delete_to_previous_subword_start);
229 register_action(editor, window, Editor::delete_to_next_word_end);
230 register_action(editor, window, Editor::delete_to_next_subword_end);
231 register_action(editor, window, Editor::delete_to_beginning_of_line);
232 register_action(editor, window, Editor::delete_to_end_of_line);
233 register_action(editor, window, Editor::cut_to_end_of_line);
234 register_action(editor, window, Editor::duplicate_line_up);
235 register_action(editor, window, Editor::duplicate_line_down);
236 register_action(editor, window, Editor::duplicate_selection);
237 register_action(editor, window, Editor::move_line_up);
238 register_action(editor, window, Editor::move_line_down);
239 register_action(editor, window, Editor::transpose);
240 register_action(editor, window, Editor::rewrap);
241 register_action(editor, window, Editor::cut);
242 register_action(editor, window, Editor::kill_ring_cut);
243 register_action(editor, window, Editor::kill_ring_yank);
244 register_action(editor, window, Editor::copy);
245 register_action(editor, window, Editor::paste);
246 register_action(editor, window, Editor::undo);
247 register_action(editor, window, Editor::redo);
248 register_action(editor, window, Editor::move_page_up);
249 register_action(editor, window, Editor::move_page_down);
250 register_action(editor, window, Editor::next_screen);
251 register_action(editor, window, Editor::scroll_cursor_top);
252 register_action(editor, window, Editor::scroll_cursor_center);
253 register_action(editor, window, Editor::scroll_cursor_bottom);
254 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
255 register_action(editor, window, |editor, _: &LineDown, window, cx| {
256 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
257 });
258 register_action(editor, window, |editor, _: &LineUp, window, cx| {
259 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
260 });
261 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
262 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
263 });
264 register_action(
265 editor,
266 window,
267 |editor, HandleInput(text): &HandleInput, window, cx| {
268 if text.is_empty() {
269 return;
270 }
271 editor.handle_input(text, window, cx);
272 },
273 );
274 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
275 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
276 });
277 register_action(editor, window, |editor, _: &PageDown, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
279 });
280 register_action(editor, window, |editor, _: &PageUp, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
282 });
283 register_action(editor, window, Editor::move_to_previous_word_start);
284 register_action(editor, window, Editor::move_to_previous_subword_start);
285 register_action(editor, window, Editor::move_to_next_word_end);
286 register_action(editor, window, Editor::move_to_next_subword_end);
287 register_action(editor, window, Editor::move_to_beginning_of_line);
288 register_action(editor, window, Editor::move_to_end_of_line);
289 register_action(editor, window, Editor::move_to_start_of_paragraph);
290 register_action(editor, window, Editor::move_to_end_of_paragraph);
291 register_action(editor, window, Editor::move_to_beginning);
292 register_action(editor, window, Editor::move_to_end);
293 register_action(editor, window, Editor::select_up);
294 register_action(editor, window, Editor::select_down);
295 register_action(editor, window, Editor::select_left);
296 register_action(editor, window, Editor::select_right);
297 register_action(editor, window, Editor::select_to_previous_word_start);
298 register_action(editor, window, Editor::select_to_previous_subword_start);
299 register_action(editor, window, Editor::select_to_next_word_end);
300 register_action(editor, window, Editor::select_to_next_subword_end);
301 register_action(editor, window, Editor::select_to_beginning_of_line);
302 register_action(editor, window, Editor::select_to_end_of_line);
303 register_action(editor, window, Editor::select_to_start_of_paragraph);
304 register_action(editor, window, Editor::select_to_end_of_paragraph);
305 register_action(editor, window, Editor::select_to_beginning);
306 register_action(editor, window, Editor::select_to_end);
307 register_action(editor, window, Editor::select_all);
308 register_action(editor, window, |editor, action, window, cx| {
309 editor.select_all_matches(action, window, cx).log_err();
310 });
311 register_action(editor, window, Editor::select_line);
312 register_action(editor, window, Editor::split_selection_into_lines);
313 register_action(editor, window, Editor::add_selection_above);
314 register_action(editor, window, Editor::add_selection_below);
315 register_action(editor, window, |editor, action, window, cx| {
316 editor.select_next(action, window, cx).log_err();
317 });
318 register_action(editor, window, |editor, action, window, cx| {
319 editor.select_previous(action, window, cx).log_err();
320 });
321 register_action(editor, window, Editor::toggle_comments);
322 register_action(editor, window, Editor::select_larger_syntax_node);
323 register_action(editor, window, Editor::select_smaller_syntax_node);
324 register_action(editor, window, Editor::select_enclosing_symbol);
325 register_action(editor, window, Editor::move_to_enclosing_bracket);
326 register_action(editor, window, Editor::undo_selection);
327 register_action(editor, window, Editor::redo_selection);
328 if !editor.read(cx).is_singleton(cx) {
329 register_action(editor, window, Editor::expand_excerpts);
330 register_action(editor, window, Editor::expand_excerpts_up);
331 register_action(editor, window, Editor::expand_excerpts_down);
332 }
333 register_action(editor, window, Editor::go_to_diagnostic);
334 register_action(editor, window, Editor::go_to_prev_diagnostic);
335 register_action(editor, window, Editor::go_to_next_hunk);
336 register_action(editor, window, Editor::go_to_prev_hunk);
337 register_action(editor, window, |editor, action, window, cx| {
338 editor
339 .go_to_definition(action, window, cx)
340 .detach_and_log_err(cx);
341 });
342 register_action(editor, window, |editor, action, window, cx| {
343 editor
344 .go_to_definition_split(action, window, cx)
345 .detach_and_log_err(cx);
346 });
347 register_action(editor, window, |editor, action, window, cx| {
348 editor
349 .go_to_declaration(action, window, cx)
350 .detach_and_log_err(cx);
351 });
352 register_action(editor, window, |editor, action, window, cx| {
353 editor
354 .go_to_declaration_split(action, window, cx)
355 .detach_and_log_err(cx);
356 });
357 register_action(editor, window, |editor, action, window, cx| {
358 editor
359 .go_to_implementation(action, window, cx)
360 .detach_and_log_err(cx);
361 });
362 register_action(editor, window, |editor, action, window, cx| {
363 editor
364 .go_to_implementation_split(action, window, cx)
365 .detach_and_log_err(cx);
366 });
367 register_action(editor, window, |editor, action, window, cx| {
368 editor
369 .go_to_type_definition(action, window, cx)
370 .detach_and_log_err(cx);
371 });
372 register_action(editor, window, |editor, action, window, cx| {
373 editor
374 .go_to_type_definition_split(action, window, cx)
375 .detach_and_log_err(cx);
376 });
377 register_action(editor, window, Editor::open_url);
378 register_action(editor, window, Editor::open_selected_filename);
379 register_action(editor, window, Editor::fold);
380 register_action(editor, window, Editor::fold_at_level);
381 register_action(editor, window, Editor::fold_all);
382 register_action(editor, window, Editor::fold_function_bodies);
383 register_action(editor, window, Editor::fold_at);
384 register_action(editor, window, Editor::fold_recursive);
385 register_action(editor, window, Editor::toggle_fold);
386 register_action(editor, window, Editor::toggle_fold_recursive);
387 register_action(editor, window, Editor::unfold_lines);
388 register_action(editor, window, Editor::unfold_recursive);
389 register_action(editor, window, Editor::unfold_all);
390 register_action(editor, window, Editor::unfold_at);
391 register_action(editor, window, Editor::fold_selected_ranges);
392 register_action(editor, window, Editor::set_mark);
393 register_action(editor, window, Editor::swap_selection_ends);
394 register_action(editor, window, Editor::show_completions);
395 register_action(editor, window, Editor::toggle_code_actions);
396 register_action(editor, window, Editor::open_excerpts);
397 register_action(editor, window, Editor::open_excerpts_in_split);
398 register_action(editor, window, Editor::open_proposed_changes_editor);
399 register_action(editor, window, Editor::toggle_soft_wrap);
400 register_action(editor, window, Editor::toggle_tab_bar);
401 register_action(editor, window, Editor::toggle_line_numbers);
402 register_action(editor, window, Editor::toggle_relative_line_numbers);
403 register_action(editor, window, Editor::toggle_indent_guides);
404 register_action(editor, window, Editor::toggle_inlay_hints);
405 register_action(editor, window, Editor::toggle_inline_completions);
406 register_action(editor, window, hover_popover::hover);
407 register_action(editor, window, Editor::reveal_in_finder);
408 register_action(editor, window, Editor::copy_path);
409 register_action(editor, window, Editor::copy_relative_path);
410 register_action(editor, window, Editor::copy_highlight_json);
411 register_action(editor, window, Editor::copy_permalink_to_line);
412 register_action(editor, window, Editor::open_permalink_to_line);
413 register_action(editor, window, Editor::copy_file_location);
414 register_action(editor, window, Editor::toggle_git_blame);
415 register_action(editor, window, Editor::toggle_git_blame_inline);
416 register_action(editor, window, Editor::toggle_selected_diff_hunks);
417 register_action(editor, window, Editor::expand_all_diff_hunks);
418 register_action(editor, window, |editor, action, window, cx| {
419 if let Some(task) = editor.format(action, window, cx) {
420 task.detach_and_notify_err(window, cx);
421 } else {
422 cx.propagate();
423 }
424 });
425 register_action(editor, window, |editor, action, window, cx| {
426 if let Some(task) = editor.format_selections(action, window, cx) {
427 task.detach_and_notify_err(window, cx);
428 } else {
429 cx.propagate();
430 }
431 });
432 register_action(editor, window, Editor::restart_language_server);
433 register_action(editor, window, Editor::cancel_language_server_work);
434 register_action(editor, window, Editor::show_character_palette);
435 register_action(editor, window, |editor, action, window, cx| {
436 if let Some(task) = editor.confirm_completion(action, window, cx) {
437 task.detach_and_notify_err(window, cx);
438 } else {
439 cx.propagate();
440 }
441 });
442 register_action(editor, window, |editor, action, window, cx| {
443 if let Some(task) = editor.compose_completion(action, window, cx) {
444 task.detach_and_notify_err(window, cx);
445 } else {
446 cx.propagate();
447 }
448 });
449 register_action(editor, window, |editor, action, window, cx| {
450 if let Some(task) = editor.confirm_code_action(action, window, cx) {
451 task.detach_and_notify_err(window, cx);
452 } else {
453 cx.propagate();
454 }
455 });
456 register_action(editor, window, |editor, action, window, cx| {
457 if let Some(task) = editor.rename(action, window, cx) {
458 task.detach_and_notify_err(window, cx);
459 } else {
460 cx.propagate();
461 }
462 });
463 register_action(editor, window, |editor, action, window, cx| {
464 if let Some(task) = editor.confirm_rename(action, window, cx) {
465 task.detach_and_notify_err(window, cx);
466 } else {
467 cx.propagate();
468 }
469 });
470 register_action(editor, window, |editor, action, window, cx| {
471 if let Some(task) = editor.find_all_references(action, window, cx) {
472 task.detach_and_log_err(cx);
473 } else {
474 cx.propagate();
475 }
476 });
477 register_action(editor, window, Editor::show_signature_help);
478 register_action(editor, window, Editor::next_inline_completion);
479 register_action(editor, window, Editor::previous_inline_completion);
480 register_action(editor, window, Editor::show_inline_completion);
481 register_action(editor, window, Editor::context_menu_first);
482 register_action(editor, window, Editor::context_menu_prev);
483 register_action(editor, window, Editor::context_menu_next);
484 register_action(editor, window, Editor::context_menu_last);
485 register_action(editor, window, Editor::display_cursor_names);
486 register_action(editor, window, Editor::unique_lines_case_insensitive);
487 register_action(editor, window, Editor::unique_lines_case_sensitive);
488 register_action(editor, window, Editor::accept_partial_inline_completion);
489 register_action(editor, window, Editor::accept_inline_completion);
490 register_action(editor, window, Editor::revert_file);
491 register_action(editor, window, Editor::revert_selected_hunks);
492 register_action(editor, window, Editor::apply_all_diff_hunks);
493 register_action(editor, window, Editor::apply_selected_diff_hunks);
494 register_action(editor, window, Editor::open_active_item_in_terminal);
495 register_action(editor, window, Editor::reload_file);
496 register_action(editor, window, Editor::spawn_nearest_task);
497 register_action(editor, window, Editor::insert_uuid_v4);
498 register_action(editor, window, Editor::insert_uuid_v7);
499 register_action(editor, window, Editor::open_selections_in_multibuffer);
500 }
501
502 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
503 let position_map = layout.position_map.clone();
504 window.on_key_event({
505 let editor = self.editor.clone();
506 move |event: &ModifiersChangedEvent, phase, window, cx| {
507 if phase != DispatchPhase::Bubble {
508 return;
509 }
510 editor.update(cx, |editor, cx| {
511 if editor.hover_state.focused(window, cx) {
512 return;
513 }
514 Self::modifiers_changed(editor, event, &position_map, window, cx)
515 })
516 }
517 });
518 }
519
520 fn modifiers_changed(
521 editor: &mut Editor,
522 event: &ModifiersChangedEvent,
523 position_map: &PositionMap,
524 window: &mut Window,
525 cx: &mut Context<Editor>,
526 ) {
527 editor.update_inline_completion_preview(&event.modifiers, window, cx);
528
529 let mouse_position = window.mouse_position();
530 if !position_map.text_hitbox.is_hovered(window) {
531 return;
532 }
533
534 editor.update_hovered_link(
535 position_map.point_for_position(mouse_position),
536 &position_map.snapshot,
537 event.modifiers,
538 window,
539 cx,
540 )
541 }
542
543 fn mouse_left_down(
544 editor: &mut Editor,
545 event: &MouseDownEvent,
546 hovered_hunk: Option<Range<Anchor>>,
547 position_map: &PositionMap,
548 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
549 window: &mut Window,
550 cx: &mut Context<Editor>,
551 ) {
552 if window.default_prevented() {
553 return;
554 }
555
556 let text_hitbox = &position_map.text_hitbox;
557 let gutter_hitbox = &position_map.gutter_hitbox;
558 let mut click_count = event.click_count;
559 let mut modifiers = event.modifiers;
560
561 if let Some(hovered_hunk) = hovered_hunk {
562 editor.toggle_diff_hunks_in_ranges(vec![hovered_hunk], cx);
563 cx.notify();
564 return;
565 } else if gutter_hitbox.is_hovered(window) {
566 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
567 } else if !text_hitbox.is_hovered(window) {
568 return;
569 }
570
571 let is_singleton = editor.buffer().read(cx).is_singleton();
572
573 if click_count == 2 && !is_singleton {
574 match EditorSettings::get_global(cx).double_click_in_multibuffer {
575 DoubleClickInMultibuffer::Select => {
576 // do nothing special on double click, all selection logic is below
577 }
578 DoubleClickInMultibuffer::Open => {
579 if modifiers.alt {
580 // if double click is made with alt, pretend it's a regular double click without opening and alt,
581 // and run the selection logic.
582 modifiers.alt = false;
583 } else {
584 let scroll_position_row =
585 position_map.scroll_pixel_position.y / position_map.line_height;
586 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
587 + position_map.scroll_pixel_position.y)
588 / position_map.line_height)
589 as u32;
590 let multi_buffer_row = position_map
591 .snapshot
592 .display_point_to_point(
593 DisplayPoint::new(DisplayRow(display_row), 0),
594 Bias::Right,
595 )
596 .row;
597 let line_offset_from_top = display_row - scroll_position_row as u32;
598 // if double click is made without alt, open the corresponding excerp
599 editor.open_excerpts_common(
600 Some(JumpData::MultiBufferRow {
601 row: MultiBufferRow(multi_buffer_row),
602 line_offset_from_top,
603 }),
604 false,
605 window,
606 cx,
607 );
608 return;
609 }
610 }
611 }
612 }
613
614 let point_for_position = position_map.point_for_position(event.position);
615 let position = point_for_position.previous_valid;
616 if modifiers.shift && modifiers.alt {
617 editor.select(
618 SelectPhase::BeginColumnar {
619 position,
620 reset: false,
621 goal_column: point_for_position.exact_unclipped.column(),
622 },
623 window,
624 cx,
625 );
626 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
627 {
628 editor.select(
629 SelectPhase::Extend {
630 position,
631 click_count,
632 },
633 window,
634 cx,
635 );
636 } else {
637 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
638 let multi_cursor_modifier = match multi_cursor_setting {
639 MultiCursorModifier::Alt => modifiers.alt,
640 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
641 };
642 editor.select(
643 SelectPhase::Begin {
644 position,
645 add: multi_cursor_modifier,
646 click_count,
647 },
648 window,
649 cx,
650 );
651 }
652 cx.stop_propagation();
653
654 if !is_singleton {
655 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
656 + position_map.scroll_pixel_position.y)
657 / position_map.line_height) as u32;
658 let multi_buffer_row = position_map
659 .snapshot
660 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
661 .row;
662 if line_numbers
663 .get(&MultiBufferRow(multi_buffer_row))
664 .and_then(|line_number| line_number.hitbox.as_ref())
665 .is_some_and(|hitbox| hitbox.contains(&event.position))
666 {
667 let scroll_position_row =
668 position_map.scroll_pixel_position.y / position_map.line_height;
669 let line_offset_from_top = display_row - scroll_position_row as u32;
670
671 editor.open_excerpts_common(
672 Some(JumpData::MultiBufferRow {
673 row: MultiBufferRow(multi_buffer_row),
674 line_offset_from_top,
675 }),
676 modifiers.alt,
677 window,
678 cx,
679 );
680 cx.stop_propagation();
681 }
682 }
683 }
684
685 fn mouse_right_down(
686 editor: &mut Editor,
687 event: &MouseDownEvent,
688 position_map: &PositionMap,
689 window: &mut Window,
690 cx: &mut Context<Editor>,
691 ) {
692 if !position_map.text_hitbox.is_hovered(window) {
693 return;
694 }
695 let point_for_position = position_map.point_for_position(event.position);
696 mouse_context_menu::deploy_context_menu(
697 editor,
698 Some(event.position),
699 point_for_position.previous_valid,
700 window,
701 cx,
702 );
703 cx.stop_propagation();
704 }
705
706 fn mouse_middle_down(
707 editor: &mut Editor,
708 event: &MouseDownEvent,
709 position_map: &PositionMap,
710 window: &mut Window,
711 cx: &mut Context<Editor>,
712 ) {
713 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
714 return;
715 }
716
717 let point_for_position = position_map.point_for_position(event.position);
718 let position = point_for_position.previous_valid;
719
720 editor.select(
721 SelectPhase::BeginColumnar {
722 position,
723 reset: true,
724 goal_column: point_for_position.exact_unclipped.column(),
725 },
726 window,
727 cx,
728 );
729 }
730
731 fn mouse_up(
732 editor: &mut Editor,
733 event: &MouseUpEvent,
734 position_map: &PositionMap,
735 window: &mut Window,
736 cx: &mut Context<Editor>,
737 ) {
738 let text_hitbox = &position_map.text_hitbox;
739 let end_selection = editor.has_pending_selection();
740 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
741
742 if end_selection {
743 editor.select(SelectPhase::End, window, cx);
744 }
745
746 if end_selection && pending_nonempty_selections {
747 cx.stop_propagation();
748 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
749 && event.button == MouseButton::Middle
750 {
751 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
752 return;
753 }
754
755 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
756 if EditorSettings::get_global(cx).middle_click_paste {
757 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
758 let point_for_position = position_map.point_for_position(event.position);
759 let position = point_for_position.previous_valid;
760
761 editor.select(
762 SelectPhase::Begin {
763 position,
764 add: false,
765 click_count: 1,
766 },
767 window,
768 cx,
769 );
770 editor.insert(&text, window, cx);
771 }
772 cx.stop_propagation()
773 }
774 }
775 }
776
777 fn click(
778 editor: &mut Editor,
779 event: &ClickEvent,
780 position_map: &PositionMap,
781 window: &mut Window,
782 cx: &mut Context<Editor>,
783 ) {
784 let text_hitbox = &position_map.text_hitbox;
785 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
786
787 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
788 let multi_cursor_modifier = match multi_cursor_setting {
789 MultiCursorModifier::Alt => event.modifiers().secondary(),
790 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
791 };
792
793 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
794 let point = position_map.point_for_position(event.up.position);
795 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
796
797 cx.stop_propagation();
798 }
799 }
800
801 fn mouse_dragged(
802 editor: &mut Editor,
803 event: &MouseMoveEvent,
804 position_map: &PositionMap,
805 window: &mut Window,
806 cx: &mut Context<Editor>,
807 ) {
808 if !editor.has_pending_selection() {
809 return;
810 }
811
812 let text_bounds = position_map.text_hitbox.bounds;
813 let point_for_position = position_map.point_for_position(event.position);
814 let mut scroll_delta = gpui::Point::<f32>::default();
815 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
816 let top = text_bounds.origin.y + vertical_margin;
817 let bottom = text_bounds.bottom_left().y - vertical_margin;
818 if event.position.y < top {
819 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
820 }
821 if event.position.y > bottom {
822 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
823 }
824
825 // We need horizontal width of text
826 let style = editor.style.clone().unwrap_or_default();
827 let font_id = window.text_system().resolve_font(&style.text.font());
828 let font_size = style.text.font_size.to_pixels(window.rem_size());
829 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
830
831 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
832
833 let scroll_space: Pixels = scroll_margin_x * em_width;
834
835 let left = text_bounds.origin.x + scroll_space;
836 let right = text_bounds.top_right().x - scroll_space;
837
838 if event.position.x < left {
839 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
840 }
841 if event.position.x > right {
842 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
843 }
844
845 editor.select(
846 SelectPhase::Update {
847 position: point_for_position.previous_valid,
848 goal_column: point_for_position.exact_unclipped.column(),
849 scroll_delta,
850 },
851 window,
852 cx,
853 );
854 }
855
856 fn mouse_moved(
857 editor: &mut Editor,
858 event: &MouseMoveEvent,
859 position_map: &PositionMap,
860 window: &mut Window,
861 cx: &mut Context<Editor>,
862 ) {
863 let text_hitbox = &position_map.text_hitbox;
864 let gutter_hitbox = &position_map.gutter_hitbox;
865 let modifiers = event.modifiers;
866 let gutter_hovered = gutter_hitbox.is_hovered(window);
867 editor.set_gutter_hovered(gutter_hovered, cx);
868
869 // Don't trigger hover popover if mouse is hovering over context menu
870 if text_hitbox.is_hovered(window) {
871 let point_for_position = position_map.point_for_position(event.position);
872
873 editor.update_hovered_link(
874 point_for_position,
875 &position_map.snapshot,
876 modifiers,
877 window,
878 cx,
879 );
880
881 if let Some(point) = point_for_position.as_valid() {
882 let anchor = position_map
883 .snapshot
884 .buffer_snapshot
885 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
886 hover_at(editor, Some(anchor), window, cx);
887 Self::update_visible_cursor(editor, point, position_map, window, cx);
888 } else {
889 hover_at(editor, None, window, cx);
890 }
891 } else {
892 editor.hide_hovered_link(cx);
893 hover_at(editor, None, window, cx);
894 if gutter_hovered {
895 cx.stop_propagation();
896 }
897 }
898 }
899
900 fn update_visible_cursor(
901 editor: &mut Editor,
902 point: DisplayPoint,
903 position_map: &PositionMap,
904 window: &mut Window,
905 cx: &mut Context<Editor>,
906 ) {
907 let snapshot = &position_map.snapshot;
908 let Some(hub) = editor.collaboration_hub() else {
909 return;
910 };
911 let start = snapshot.display_snapshot.clip_point(
912 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
913 Bias::Left,
914 );
915 let end = snapshot.display_snapshot.clip_point(
916 DisplayPoint::new(
917 point.row(),
918 (point.column() + 1).min(snapshot.line_len(point.row())),
919 ),
920 Bias::Right,
921 );
922
923 let range = snapshot
924 .buffer_snapshot
925 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
926 ..snapshot
927 .buffer_snapshot
928 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
929
930 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
931 return;
932 };
933 let key = crate::HoveredCursor {
934 replica_id: selection.replica_id,
935 selection_id: selection.selection.id,
936 };
937 editor.hovered_cursors.insert(
938 key.clone(),
939 cx.spawn_in(window, |editor, mut cx| async move {
940 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
941 editor
942 .update(&mut cx, |editor, cx| {
943 editor.hovered_cursors.remove(&key);
944 cx.notify();
945 })
946 .ok();
947 }),
948 );
949 cx.notify()
950 }
951
952 #[allow(clippy::too_many_arguments)]
953 fn layout_selections(
954 &self,
955 start_anchor: Anchor,
956 end_anchor: Anchor,
957 local_selections: &[Selection<Point>],
958 snapshot: &EditorSnapshot,
959 start_row: DisplayRow,
960 end_row: DisplayRow,
961 window: &mut Window,
962 cx: &mut App,
963 ) -> (
964 Vec<(PlayerColor, Vec<SelectionLayout>)>,
965 BTreeMap<DisplayRow, bool>,
966 Option<DisplayPoint>,
967 ) {
968 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
969 let mut active_rows = BTreeMap::new();
970 let mut newest_selection_head = None;
971 self.editor.update(cx, |editor, cx| {
972 if editor.show_local_selections {
973 let mut layouts = Vec::new();
974 let newest = editor.selections.newest(cx);
975 for selection in local_selections.iter().cloned() {
976 let is_empty = selection.start == selection.end;
977 let is_newest = selection == newest;
978
979 let layout = SelectionLayout::new(
980 selection,
981 editor.selections.line_mode,
982 editor.cursor_shape,
983 &snapshot.display_snapshot,
984 is_newest,
985 editor.leader_peer_id.is_none(),
986 None,
987 );
988 if is_newest {
989 newest_selection_head = Some(layout.head);
990 }
991
992 for row in cmp::max(layout.active_rows.start.0, start_row.0)
993 ..=cmp::min(layout.active_rows.end.0, end_row.0)
994 {
995 let contains_non_empty_selection =
996 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
997 *contains_non_empty_selection |= !is_empty;
998 }
999 layouts.push(layout);
1000 }
1001
1002 let player = editor.current_user_player_color(cx);
1003 selections.push((player, layouts));
1004 }
1005
1006 if let Some(collaboration_hub) = &editor.collaboration_hub {
1007 // When following someone, render the local selections in their color.
1008 if let Some(leader_id) = editor.leader_peer_id {
1009 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1010 {
1011 if let Some(participant_index) = collaboration_hub
1012 .user_participant_indices(cx)
1013 .get(&collaborator.user_id)
1014 {
1015 if let Some((local_selection_style, _)) = selections.first_mut() {
1016 *local_selection_style = cx
1017 .theme()
1018 .players()
1019 .color_for_participant(participant_index.0);
1020 }
1021 }
1022 }
1023 }
1024
1025 let mut remote_selections = HashMap::default();
1026 for selection in snapshot.remote_selections_in_range(
1027 &(start_anchor..end_anchor),
1028 collaboration_hub.as_ref(),
1029 cx,
1030 ) {
1031 let selection_style =
1032 Self::get_participant_color(selection.participant_index, cx);
1033
1034 // Don't re-render the leader's selections, since the local selections
1035 // match theirs.
1036 if Some(selection.peer_id) == editor.leader_peer_id {
1037 continue;
1038 }
1039 let key = HoveredCursor {
1040 replica_id: selection.replica_id,
1041 selection_id: selection.selection.id,
1042 };
1043
1044 let is_shown =
1045 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1046
1047 remote_selections
1048 .entry(selection.replica_id)
1049 .or_insert((selection_style, Vec::new()))
1050 .1
1051 .push(SelectionLayout::new(
1052 selection.selection,
1053 selection.line_mode,
1054 selection.cursor_shape,
1055 &snapshot.display_snapshot,
1056 false,
1057 false,
1058 if is_shown { selection.user_name } else { None },
1059 ));
1060 }
1061
1062 selections.extend(remote_selections.into_values());
1063 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1064 let layouts = snapshot
1065 .buffer_snapshot
1066 .selections_in_range(&(start_anchor..end_anchor), true)
1067 .map(move |(_, line_mode, cursor_shape, selection)| {
1068 SelectionLayout::new(
1069 selection,
1070 line_mode,
1071 cursor_shape,
1072 &snapshot.display_snapshot,
1073 false,
1074 false,
1075 None,
1076 )
1077 })
1078 .collect::<Vec<_>>();
1079 let player = editor.current_user_player_color(cx);
1080 selections.push((player, layouts));
1081 }
1082 });
1083 (selections, active_rows, newest_selection_head)
1084 }
1085
1086 fn collect_cursors(
1087 &self,
1088 snapshot: &EditorSnapshot,
1089 cx: &mut App,
1090 ) -> Vec<(DisplayPoint, Hsla)> {
1091 let editor = self.editor.read(cx);
1092 let mut cursors = Vec::new();
1093 let mut skip_local = false;
1094 let mut add_cursor = |anchor: Anchor, color| {
1095 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1096 };
1097 // Remote cursors
1098 if let Some(collaboration_hub) = &editor.collaboration_hub {
1099 for remote_selection in snapshot.remote_selections_in_range(
1100 &(Anchor::min()..Anchor::max()),
1101 collaboration_hub.deref(),
1102 cx,
1103 ) {
1104 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1105 add_cursor(remote_selection.selection.head(), color.cursor);
1106 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1107 skip_local = true;
1108 }
1109 }
1110 }
1111 // Local cursors
1112 if !skip_local {
1113 let color = cx.theme().players().local().cursor;
1114 editor.selections.disjoint.iter().for_each(|selection| {
1115 add_cursor(selection.head(), color);
1116 });
1117 if let Some(ref selection) = editor.selections.pending_anchor() {
1118 add_cursor(selection.head(), color);
1119 }
1120 }
1121 cursors
1122 }
1123
1124 #[allow(clippy::too_many_arguments)]
1125 fn layout_visible_cursors(
1126 &self,
1127 snapshot: &EditorSnapshot,
1128 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1129 block_start_rows: &HashSet<DisplayRow>,
1130 visible_display_row_range: Range<DisplayRow>,
1131 line_layouts: &[LineWithInvisibles],
1132 text_hitbox: &Hitbox,
1133 content_origin: gpui::Point<Pixels>,
1134 scroll_position: gpui::Point<f32>,
1135 scroll_pixel_position: gpui::Point<Pixels>,
1136 line_height: Pixels,
1137 em_width: Pixels,
1138 em_advance: Pixels,
1139 autoscroll_containing_element: bool,
1140 window: &mut Window,
1141 cx: &mut App,
1142 ) -> Vec<CursorLayout> {
1143 let mut autoscroll_bounds = None;
1144 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1145 let mut cursors = Vec::new();
1146 for (player_color, selections) in selections {
1147 for selection in selections {
1148 let cursor_position = selection.head;
1149
1150 let in_range = visible_display_row_range.contains(&cursor_position.row());
1151 if (selection.is_local && !editor.show_local_cursors(window, cx))
1152 || !in_range
1153 || block_start_rows.contains(&cursor_position.row())
1154 {
1155 continue;
1156 }
1157
1158 let cursor_row_layout = &line_layouts
1159 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1160 let cursor_column = cursor_position.column() as usize;
1161
1162 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1163 let mut block_width =
1164 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1165 if block_width == Pixels::ZERO {
1166 block_width = em_advance;
1167 }
1168 let block_text = if let CursorShape::Block = selection.cursor_shape {
1169 snapshot
1170 .grapheme_at(cursor_position)
1171 .or_else(|| {
1172 if cursor_column == 0 {
1173 snapshot.placeholder_text().and_then(|s| {
1174 s.graphemes(true).next().map(|s| s.to_string().into())
1175 })
1176 } else {
1177 None
1178 }
1179 })
1180 .and_then(|text| {
1181 let len = text.len();
1182
1183 let font = cursor_row_layout
1184 .font_id_for_index(cursor_column)
1185 .and_then(|cursor_font_id| {
1186 window.text_system().get_font_for_id(cursor_font_id)
1187 })
1188 .unwrap_or(self.style.text.font());
1189
1190 // Invert the text color for the block cursor. Ensure that the text
1191 // color is opaque enough to be visible against the background color.
1192 //
1193 // 0.75 is an arbitrary threshold to determine if the background color is
1194 // opaque enough to use as a text color.
1195 //
1196 // TODO: In the future we should ensure themes have a `text_inverse` color.
1197 let color = if cx.theme().colors().editor_background.a < 0.75 {
1198 match cx.theme().appearance {
1199 Appearance::Dark => Hsla::black(),
1200 Appearance::Light => Hsla::white(),
1201 }
1202 } else {
1203 cx.theme().colors().editor_background
1204 };
1205
1206 window
1207 .text_system()
1208 .shape_line(
1209 text,
1210 cursor_row_layout.font_size,
1211 &[TextRun {
1212 len,
1213 font,
1214 color,
1215 background_color: None,
1216 strikethrough: None,
1217 underline: None,
1218 }],
1219 )
1220 .log_err()
1221 })
1222 } else {
1223 None
1224 };
1225
1226 let x = cursor_character_x - scroll_pixel_position.x;
1227 let y = (cursor_position.row().as_f32()
1228 - scroll_pixel_position.y / line_height)
1229 * line_height;
1230 if selection.is_newest {
1231 editor.pixel_position_of_newest_cursor = Some(point(
1232 text_hitbox.origin.x + x + block_width / 2.,
1233 text_hitbox.origin.y + y + line_height / 2.,
1234 ));
1235
1236 if autoscroll_containing_element {
1237 let top = text_hitbox.origin.y
1238 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1239 * line_height;
1240 let left = text_hitbox.origin.x
1241 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1242 .max(0.)
1243 * em_width;
1244
1245 let bottom = text_hitbox.origin.y
1246 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1247 * line_height;
1248 let right = text_hitbox.origin.x
1249 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1250 * em_width;
1251
1252 autoscroll_bounds =
1253 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1254 }
1255 }
1256
1257 let mut cursor = CursorLayout {
1258 color: player_color.cursor,
1259 block_width,
1260 origin: point(x, y),
1261 line_height,
1262 shape: selection.cursor_shape,
1263 block_text,
1264 cursor_name: None,
1265 };
1266 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1267 string: name,
1268 color: self.style.background,
1269 is_top_row: cursor_position.row().0 == 0,
1270 });
1271 cursor.layout(content_origin, cursor_name, window, cx);
1272 cursors.push(cursor);
1273 }
1274 }
1275 cursors
1276 });
1277
1278 if let Some(bounds) = autoscroll_bounds {
1279 window.request_autoscroll(bounds);
1280 }
1281
1282 cursor_layouts
1283 }
1284
1285 fn layout_scrollbars(
1286 &self,
1287 snapshot: &EditorSnapshot,
1288 scrollbar_range_data: ScrollbarRangeData,
1289 scroll_position: gpui::Point<f32>,
1290 non_visible_cursors: bool,
1291 window: &mut Window,
1292 cx: &mut App,
1293 ) -> AxisPair<Option<ScrollbarLayout>> {
1294 let letter_size = scrollbar_range_data.letter_size;
1295 let text_units_per_page = axis_pair(
1296 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1297 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1298 );
1299
1300 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1301 let show_scrollbars = self.editor.read(cx).show_scrollbars
1302 && match scrollbar_settings.show {
1303 ShowScrollbar::Auto => {
1304 let editor = self.editor.read(cx);
1305 let is_singleton = editor.is_singleton(cx);
1306 // Git
1307 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1308 ||
1309 // Buffer Search Results
1310 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1311 ||
1312 // Selected Symbol Occurrences
1313 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1314 ||
1315 // Diagnostics
1316 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1317 ||
1318 // Cursors out of sight
1319 non_visible_cursors
1320 ||
1321 // Scrollmanager
1322 editor.scroll_manager.scrollbars_visible()
1323 }
1324 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1325 ShowScrollbar::Always => true,
1326 ShowScrollbar::Never => false,
1327 };
1328
1329 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1330
1331 if snapshot.mode != EditorMode::Full {
1332 return axis_pair(None, None);
1333 }
1334
1335 let visible_range = axis_pair(
1336 axes.horizontal
1337 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1338 axes.vertical
1339 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1340 );
1341
1342 // If a drag took place after we started dragging the scrollbar,
1343 // cancel the scrollbar drag.
1344 if cx.has_active_drag() {
1345 self.editor.update(cx, |editor, cx| {
1346 editor
1347 .scroll_manager
1348 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1349 editor
1350 .scroll_manager
1351 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1352 });
1353 }
1354
1355 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1356
1357 let track_bounds = axis_pair(
1358 axes.horizontal.then(|| {
1359 Bounds::from_corners(
1360 point(
1361 text_bounds.bottom_left().x,
1362 text_bounds.bottom_left().y - self.style.scrollbar_width,
1363 ),
1364 point(
1365 text_bounds.bottom_right().x
1366 - if axes.vertical {
1367 self.style.scrollbar_width
1368 } else {
1369 px(0.)
1370 },
1371 text_bounds.bottom_right().y,
1372 ),
1373 )
1374 }),
1375 axes.vertical.then(|| {
1376 Bounds::from_corners(
1377 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1378 text_bounds.bottom_right(),
1379 )
1380 }),
1381 );
1382
1383 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1384 let total_text_units = axis_pair(
1385 Some(scroll_range_size.width / letter_size.width),
1386 Some(scroll_range_size.height / letter_size.height),
1387 );
1388
1389 let thumb_size = axis_pair(
1390 total_text_units
1391 .horizontal
1392 .zip(track_bounds.horizontal)
1393 .and_then(|(total_text_units_x, track_bounds_x)| {
1394 if text_units_per_page.horizontal >= total_text_units_x {
1395 return None;
1396 }
1397
1398 let thumb_percent =
1399 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1400
1401 Some(track_bounds_x.size.width * thumb_percent)
1402 }),
1403 total_text_units.vertical.zip(track_bounds.vertical).map(
1404 |(total_text_units_y, track_bounds_y)| {
1405 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1406
1407 track_bounds_y.size.height * thumb_percent
1408 },
1409 ),
1410 );
1411
1412 // NOTE: Space not taken by track bounds divided by text units not on screen
1413 let text_unit_size = axis_pair(
1414 thumb_size
1415 .horizontal
1416 .zip(track_bounds.horizontal)
1417 .zip(total_text_units.horizontal)
1418 .map(|((thumb_size, track_bounds), total_text_units)| {
1419 (track_bounds.size.width - thumb_size)
1420 / (total_text_units - text_units_per_page.horizontal).max(0.)
1421 }),
1422 thumb_size
1423 .vertical
1424 .zip(track_bounds.vertical)
1425 .zip(total_text_units.vertical)
1426 .map(|((thumb_size, track_bounds), total_text_units)| {
1427 (track_bounds.size.height - thumb_size)
1428 / (total_text_units - text_units_per_page.vertical).max(0.)
1429 }),
1430 );
1431
1432 let horizontal_scrollbar = track_bounds
1433 .horizontal
1434 .zip(visible_range.horizontal)
1435 .zip(text_unit_size.horizontal)
1436 .zip(thumb_size.horizontal)
1437 .map(
1438 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1439 hitbox: window.insert_hitbox(track_bounds, false),
1440 visible_range,
1441 text_unit_size,
1442 visible: show_scrollbars,
1443 thumb_size,
1444 axis: Axis::Horizontal,
1445 },
1446 );
1447
1448 let vertical_scrollbar = track_bounds
1449 .vertical
1450 .zip(visible_range.vertical)
1451 .zip(text_unit_size.vertical)
1452 .zip(thumb_size.vertical)
1453 .map(
1454 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1455 hitbox: window.insert_hitbox(track_bounds, false),
1456 visible_range,
1457 text_unit_size,
1458 visible: show_scrollbars,
1459 thumb_size,
1460 axis: Axis::Vertical,
1461 },
1462 );
1463
1464 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1465 }
1466
1467 #[allow(clippy::too_many_arguments)]
1468 fn prepaint_crease_toggles(
1469 &self,
1470 crease_toggles: &mut [Option<AnyElement>],
1471 line_height: Pixels,
1472 gutter_dimensions: &GutterDimensions,
1473 gutter_settings: crate::editor_settings::Gutter,
1474 scroll_pixel_position: gpui::Point<Pixels>,
1475 gutter_hitbox: &Hitbox,
1476 window: &mut Window,
1477 cx: &mut App,
1478 ) {
1479 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1480 if let Some(crease_toggle) = crease_toggle {
1481 debug_assert!(gutter_settings.folds);
1482 let available_space = size(
1483 AvailableSpace::MinContent,
1484 AvailableSpace::Definite(line_height * 0.55),
1485 );
1486 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1487
1488 let position = point(
1489 gutter_dimensions.width - gutter_dimensions.right_padding,
1490 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1491 );
1492 let centering_offset = point(
1493 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1494 (line_height - crease_toggle_size.height) / 2.,
1495 );
1496 let origin = gutter_hitbox.origin + position + centering_offset;
1497 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1498 }
1499 }
1500 }
1501
1502 #[allow(clippy::too_many_arguments)]
1503 fn prepaint_crease_trailers(
1504 &self,
1505 trailers: Vec<Option<AnyElement>>,
1506 lines: &[LineWithInvisibles],
1507 line_height: Pixels,
1508 content_origin: gpui::Point<Pixels>,
1509 scroll_pixel_position: gpui::Point<Pixels>,
1510 em_width: Pixels,
1511 window: &mut Window,
1512 cx: &mut App,
1513 ) -> Vec<Option<CreaseTrailerLayout>> {
1514 trailers
1515 .into_iter()
1516 .enumerate()
1517 .map(|(ix, element)| {
1518 let mut element = element?;
1519 let available_space = size(
1520 AvailableSpace::MinContent,
1521 AvailableSpace::Definite(line_height),
1522 );
1523 let size = element.layout_as_root(available_space, window, cx);
1524
1525 let line = &lines[ix];
1526 let padding = if line.width == Pixels::ZERO {
1527 Pixels::ZERO
1528 } else {
1529 4. * em_width
1530 };
1531 let position = point(
1532 scroll_pixel_position.x + line.width + padding,
1533 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1534 );
1535 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1536 let origin = content_origin + position + centering_offset;
1537 element.prepaint_as_root(origin, available_space, window, cx);
1538 Some(CreaseTrailerLayout {
1539 element,
1540 bounds: Bounds::new(origin, size),
1541 })
1542 })
1543 .collect()
1544 }
1545
1546 // Folds contained in a hunk are ignored apart from shrinking visual size
1547 // If a fold contains any hunks then that fold line is marked as modified
1548 fn layout_gutter_diff_hunks(
1549 &self,
1550 line_height: Pixels,
1551 gutter_hitbox: &Hitbox,
1552 display_rows: Range<DisplayRow>,
1553 snapshot: &EditorSnapshot,
1554 window: &mut Window,
1555 cx: &mut App,
1556 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1557 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1558 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1559
1560 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1561 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1562
1563 for hunk in snapshot
1564 .buffer_snapshot
1565 .diff_hunks_in_range(buffer_start..buffer_end)
1566 {
1567 if folded_buffers.contains(&hunk.buffer_id) {
1568 continue;
1569 }
1570
1571 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1572 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1573
1574 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1575 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1576
1577 let display_hunk = if hunk_display_start.column() != 0 {
1578 DisplayDiffHunk::Folded {
1579 display_row: hunk_display_start.row(),
1580 }
1581 } else {
1582 let mut end_row = hunk_display_end.row();
1583 if hunk_display_end.column() > 0 {
1584 end_row.0 += 1;
1585 }
1586 DisplayDiffHunk::Unfolded {
1587 status: hunk.status(),
1588 diff_base_byte_range: hunk.diff_base_byte_range,
1589 display_row_range: hunk_display_start.row()..end_row,
1590 multi_buffer_range: Anchor::range_in_buffer(
1591 hunk.excerpt_id,
1592 hunk.buffer_id,
1593 hunk.buffer_range,
1594 ),
1595 }
1596 };
1597
1598 display_hunks.push((display_hunk, None));
1599 }
1600
1601 let git_gutter_setting = ProjectSettings::get_global(cx)
1602 .git
1603 .git_gutter
1604 .unwrap_or_default();
1605 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1606 for (hunk, hitbox) in &mut display_hunks {
1607 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1608 let hunk_bounds =
1609 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1610 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1611 }
1612 }
1613 }
1614
1615 display_hunks
1616 }
1617
1618 #[allow(clippy::too_many_arguments)]
1619 fn layout_inline_blame(
1620 &self,
1621 display_row: DisplayRow,
1622 row_info: &RowInfo,
1623 line_layout: &LineWithInvisibles,
1624 crease_trailer: Option<&CreaseTrailerLayout>,
1625 em_width: Pixels,
1626 content_origin: gpui::Point<Pixels>,
1627 scroll_pixel_position: gpui::Point<Pixels>,
1628 line_height: Pixels,
1629 window: &mut Window,
1630 cx: &mut App,
1631 ) -> Option<AnyElement> {
1632 if !self
1633 .editor
1634 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1635 {
1636 return None;
1637 }
1638
1639 let workspace = self
1640 .editor
1641 .read(cx)
1642 .workspace
1643 .as_ref()
1644 .map(|(w, _)| w.clone());
1645
1646 let editor = self.editor.read(cx);
1647 let blame = editor.blame.clone()?;
1648 let padding = {
1649 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1650 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1651
1652 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1653
1654 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1655 match &inline_completion.completion {
1656 InlineCompletion::Edit {
1657 display_mode: EditDisplayMode::TabAccept(_),
1658 ..
1659 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1660 _ => {}
1661 }
1662 }
1663
1664 padding * em_width
1665 };
1666
1667 let blame_entry = blame
1668 .update(cx, |blame, cx| {
1669 blame.blame_for_rows(&[*row_info], cx).next()
1670 })
1671 .flatten()?;
1672
1673 let mut element =
1674 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1675
1676 let start_y = content_origin.y
1677 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1678
1679 let start_x = {
1680 let line_end = if let Some(crease_trailer) = crease_trailer {
1681 crease_trailer.bounds.right()
1682 } else {
1683 content_origin.x - scroll_pixel_position.x + line_layout.width
1684 };
1685
1686 let padded_line_end = line_end + padding;
1687
1688 let min_column_in_pixels = ProjectSettings::get_global(cx)
1689 .git
1690 .inline_blame
1691 .and_then(|settings| settings.min_column)
1692 .map(|col| self.column_pixels(col as usize, window, cx))
1693 .unwrap_or(px(0.));
1694 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1695
1696 cmp::max(padded_line_end, min_start)
1697 };
1698
1699 let absolute_offset = point(start_x, start_y);
1700 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1701
1702 Some(element)
1703 }
1704
1705 #[allow(clippy::too_many_arguments)]
1706 fn layout_blame_entries(
1707 &self,
1708 buffer_rows: &[RowInfo],
1709 em_width: Pixels,
1710 scroll_position: gpui::Point<f32>,
1711 line_height: Pixels,
1712 gutter_hitbox: &Hitbox,
1713 max_width: Option<Pixels>,
1714 window: &mut Window,
1715 cx: &mut App,
1716 ) -> Option<Vec<AnyElement>> {
1717 if !self
1718 .editor
1719 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1720 {
1721 return None;
1722 }
1723
1724 let blame = self.editor.read(cx).blame.clone()?;
1725 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1726 blame.blame_for_rows(buffer_rows, cx).collect()
1727 });
1728
1729 let width = if let Some(max_width) = max_width {
1730 AvailableSpace::Definite(max_width)
1731 } else {
1732 AvailableSpace::MaxContent
1733 };
1734 let scroll_top = scroll_position.y * line_height;
1735 let start_x = em_width;
1736
1737 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1738
1739 let shaped_lines = blamed_rows
1740 .into_iter()
1741 .enumerate()
1742 .flat_map(|(ix, blame_entry)| {
1743 if let Some(blame_entry) = blame_entry {
1744 let mut element = render_blame_entry(
1745 ix,
1746 &blame,
1747 blame_entry,
1748 &self.style,
1749 &mut last_used_color,
1750 self.editor.clone(),
1751 cx,
1752 );
1753
1754 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1755 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1756
1757 element.prepaint_as_root(
1758 absolute_offset,
1759 size(width, AvailableSpace::MinContent),
1760 window,
1761 cx,
1762 );
1763
1764 Some(element)
1765 } else {
1766 None
1767 }
1768 })
1769 .collect();
1770
1771 Some(shaped_lines)
1772 }
1773
1774 #[allow(clippy::too_many_arguments)]
1775 fn layout_indent_guides(
1776 &self,
1777 content_origin: gpui::Point<Pixels>,
1778 text_origin: gpui::Point<Pixels>,
1779 visible_buffer_range: Range<MultiBufferRow>,
1780 scroll_pixel_position: gpui::Point<Pixels>,
1781 line_height: Pixels,
1782 snapshot: &DisplaySnapshot,
1783 window: &mut Window,
1784 cx: &mut App,
1785 ) -> Option<Vec<IndentGuideLayout>> {
1786 let indent_guides = self.editor.update(cx, |editor, cx| {
1787 editor.indent_guides(visible_buffer_range, snapshot, cx)
1788 })?;
1789
1790 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1791 editor
1792 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1793 .unwrap_or_default()
1794 });
1795
1796 Some(
1797 indent_guides
1798 .into_iter()
1799 .enumerate()
1800 .filter_map(|(i, indent_guide)| {
1801 let single_indent_width =
1802 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1803 let total_width = single_indent_width * indent_guide.depth as f32;
1804 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1805 if start_x >= text_origin.x {
1806 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1807 indent_guide.start_row..indent_guide.end_row,
1808 line_height,
1809 snapshot,
1810 );
1811
1812 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1813
1814 Some(IndentGuideLayout {
1815 origin: point(start_x, start_y),
1816 length,
1817 single_indent_width,
1818 depth: indent_guide.depth,
1819 active: active_indent_guide_indices.contains(&i),
1820 settings: indent_guide.settings,
1821 })
1822 } else {
1823 None
1824 }
1825 })
1826 .collect(),
1827 )
1828 }
1829
1830 fn calculate_indent_guide_bounds(
1831 row_range: Range<MultiBufferRow>,
1832 line_height: Pixels,
1833 snapshot: &DisplaySnapshot,
1834 ) -> (gpui::Pixels, gpui::Pixels) {
1835 let start_point = Point::new(row_range.start.0, 0);
1836 let end_point = Point::new(row_range.end.0, 0);
1837
1838 let row_range = start_point.to_display_point(snapshot).row()
1839 ..end_point.to_display_point(snapshot).row();
1840
1841 let mut prev_line = start_point;
1842 prev_line.row = prev_line.row.saturating_sub(1);
1843 let prev_line = prev_line.to_display_point(snapshot).row();
1844
1845 let mut cons_line = end_point;
1846 cons_line.row += 1;
1847 let cons_line = cons_line.to_display_point(snapshot).row();
1848
1849 let mut offset_y = row_range.start.0 as f32 * line_height;
1850 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1851
1852 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1853 if row_range.end == cons_line {
1854 length += line_height;
1855 }
1856
1857 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1858 // we want to extend the indent guide to the start of the block.
1859 let mut block_height = 0;
1860 let mut block_offset = 0;
1861 let mut found_excerpt_header = false;
1862 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1863 if matches!(block, Block::ExcerptBoundary { .. }) {
1864 found_excerpt_header = true;
1865 break;
1866 }
1867 block_offset += block.height();
1868 block_height += block.height();
1869 }
1870 if !found_excerpt_header {
1871 offset_y -= block_offset as f32 * line_height;
1872 length += block_height as f32 * line_height;
1873 }
1874
1875 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1876 // we want to ensure that the indent guide stops before the excerpt header.
1877 let mut block_height = 0;
1878 let mut found_excerpt_header = false;
1879 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1880 if matches!(block, Block::ExcerptBoundary { .. }) {
1881 found_excerpt_header = true;
1882 }
1883 block_height += block.height();
1884 }
1885 if found_excerpt_header {
1886 length -= block_height as f32 * line_height;
1887 }
1888
1889 (offset_y, length)
1890 }
1891
1892 #[allow(clippy::too_many_arguments)]
1893 fn layout_run_indicators(
1894 &self,
1895 line_height: Pixels,
1896 range: Range<DisplayRow>,
1897 scroll_pixel_position: gpui::Point<Pixels>,
1898 gutter_dimensions: &GutterDimensions,
1899 gutter_hitbox: &Hitbox,
1900 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1901 snapshot: &EditorSnapshot,
1902 window: &mut Window,
1903 cx: &mut App,
1904 ) -> Vec<AnyElement> {
1905 self.editor.update(cx, |editor, cx| {
1906 let active_task_indicator_row =
1907 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1908 deployed_from_indicator,
1909 actions,
1910 ..
1911 })) = editor.context_menu.borrow().as_ref()
1912 {
1913 actions
1914 .tasks
1915 .as_ref()
1916 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1917 .or(*deployed_from_indicator)
1918 } else {
1919 None
1920 };
1921
1922 let offset_range_start = snapshot
1923 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1924 .to_offset(&snapshot.buffer_snapshot);
1925 let offset_range_end = snapshot
1926 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1927 .to_offset(&snapshot.buffer_snapshot);
1928
1929 editor
1930 .tasks
1931 .iter()
1932 .filter_map(|(_, tasks)| {
1933 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1934 return None;
1935 }
1936 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1937 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1938 let buffer_folded = snapshot
1939 .buffer_snapshot
1940 .buffer_line_for_row(multibuffer_row)
1941 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1942 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1943 .unwrap_or(false);
1944 if buffer_folded {
1945 return None;
1946 }
1947
1948 if snapshot.is_line_folded(multibuffer_row) {
1949 // Skip folded indicators, unless it's the starting line of a fold.
1950 if multibuffer_row
1951 .0
1952 .checked_sub(1)
1953 .map_or(false, |previous_row| {
1954 snapshot.is_line_folded(MultiBufferRow(previous_row))
1955 })
1956 {
1957 return None;
1958 }
1959 }
1960 let display_row = multibuffer_point.to_display_point(snapshot).row();
1961 let button = editor.render_run_indicator(
1962 &self.style,
1963 Some(display_row) == active_task_indicator_row,
1964 display_row,
1965 cx,
1966 );
1967
1968 let button = prepaint_gutter_button(
1969 button,
1970 display_row,
1971 line_height,
1972 gutter_dimensions,
1973 scroll_pixel_position,
1974 gutter_hitbox,
1975 rows_with_hunk_bounds,
1976 window,
1977 cx,
1978 );
1979 Some(button)
1980 })
1981 .collect_vec()
1982 })
1983 }
1984
1985 #[allow(clippy::too_many_arguments)]
1986 fn layout_code_actions_indicator(
1987 &self,
1988 line_height: Pixels,
1989 newest_selection_head: DisplayPoint,
1990 scroll_pixel_position: gpui::Point<Pixels>,
1991 gutter_dimensions: &GutterDimensions,
1992 gutter_hitbox: &Hitbox,
1993 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1994 window: &mut Window,
1995 cx: &mut App,
1996 ) -> Option<AnyElement> {
1997 let mut active = false;
1998 let mut button = None;
1999 let row = newest_selection_head.row();
2000 self.editor.update(cx, |editor, cx| {
2001 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2002 deployed_from_indicator,
2003 ..
2004 })) = editor.context_menu.borrow().as_ref()
2005 {
2006 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2007 };
2008 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2009 });
2010
2011 let button = prepaint_gutter_button(
2012 button?,
2013 row,
2014 line_height,
2015 gutter_dimensions,
2016 scroll_pixel_position,
2017 gutter_hitbox,
2018 rows_with_hunk_bounds,
2019 window,
2020 cx,
2021 );
2022
2023 Some(button)
2024 }
2025
2026 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2027 if let Some(index) = participant_index {
2028 cx.theme().players().color_for_participant(index.0)
2029 } else {
2030 cx.theme().players().absent()
2031 }
2032 }
2033
2034 fn calculate_relative_line_numbers(
2035 &self,
2036 snapshot: &EditorSnapshot,
2037 rows: &Range<DisplayRow>,
2038 relative_to: Option<DisplayRow>,
2039 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2040 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2041 let Some(relative_to) = relative_to else {
2042 return relative_rows;
2043 };
2044
2045 let start = rows.start.min(relative_to);
2046 let end = rows.end.max(relative_to);
2047
2048 let buffer_rows = snapshot
2049 .row_infos(start)
2050 .take(1 + end.minus(start) as usize)
2051 .collect::<Vec<_>>();
2052
2053 let head_idx = relative_to.minus(start);
2054 let mut delta = 1;
2055 let mut i = head_idx + 1;
2056 while i < buffer_rows.len() as u32 {
2057 if buffer_rows[i as usize].buffer_row.is_some() {
2058 if rows.contains(&DisplayRow(i + start.0)) {
2059 relative_rows.insert(DisplayRow(i + start.0), delta);
2060 }
2061 delta += 1;
2062 }
2063 i += 1;
2064 }
2065 delta = 1;
2066 i = head_idx.min(buffer_rows.len() as u32 - 1);
2067 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2068 i -= 1;
2069 }
2070
2071 while i > 0 {
2072 i -= 1;
2073 if buffer_rows[i as usize].buffer_row.is_some() {
2074 if rows.contains(&DisplayRow(i + start.0)) {
2075 relative_rows.insert(DisplayRow(i + start.0), delta);
2076 }
2077 delta += 1;
2078 }
2079 }
2080
2081 relative_rows
2082 }
2083
2084 #[allow(clippy::too_many_arguments)]
2085 fn layout_line_numbers(
2086 &self,
2087 gutter_hitbox: Option<&Hitbox>,
2088 gutter_dimensions: GutterDimensions,
2089 line_height: Pixels,
2090 scroll_position: gpui::Point<f32>,
2091 rows: Range<DisplayRow>,
2092 buffer_rows: &[RowInfo],
2093 newest_selection_head: Option<DisplayPoint>,
2094 snapshot: &EditorSnapshot,
2095 window: &mut Window,
2096 cx: &mut App,
2097 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2098 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2099 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2100 });
2101 if !include_line_numbers {
2102 return Arc::default();
2103 }
2104
2105 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2106 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2107 let newest = editor.selections.newest::<Point>(cx);
2108 SelectionLayout::new(
2109 newest,
2110 editor.selections.line_mode,
2111 editor.cursor_shape,
2112 &snapshot.display_snapshot,
2113 true,
2114 true,
2115 None,
2116 )
2117 .head
2118 });
2119 let is_relative = editor.should_use_relative_line_numbers(cx);
2120 (newest_selection_head, is_relative)
2121 });
2122
2123 let relative_to = if is_relative {
2124 Some(newest_selection_head.row())
2125 } else {
2126 None
2127 };
2128 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2129 let mut line_number = String::new();
2130 let line_numbers = buffer_rows
2131 .into_iter()
2132 .enumerate()
2133 .flat_map(|(ix, row_info)| {
2134 let display_row = DisplayRow(rows.start.0 + ix as u32);
2135 line_number.clear();
2136 let non_relative_number = row_info.buffer_row? + 1;
2137 let number = relative_rows
2138 .get(&display_row)
2139 .unwrap_or(&non_relative_number);
2140 write!(&mut line_number, "{number}").unwrap();
2141 if row_info.diff_status == Some(DiffHunkStatus::Removed) {
2142 return None;
2143 }
2144
2145 let color = cx.theme().colors().editor_line_number;
2146 let shaped_line = self
2147 .shape_line_number(SharedString::from(&line_number), color, window)
2148 .log_err()?;
2149 let scroll_top = scroll_position.y * line_height;
2150 let line_origin = gutter_hitbox.map(|hitbox| {
2151 hitbox.origin
2152 + point(
2153 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2154 ix as f32 * line_height - (scroll_top % line_height),
2155 )
2156 });
2157
2158 #[cfg(not(test))]
2159 let hitbox = line_origin.map(|line_origin| {
2160 window.insert_hitbox(
2161 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2162 false,
2163 )
2164 });
2165 #[cfg(test)]
2166 let hitbox = {
2167 let _ = line_origin;
2168 None
2169 };
2170
2171 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2172 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2173 let line_number = LineNumberLayout {
2174 shaped_line,
2175 hitbox,
2176 display_row,
2177 };
2178 Some((multi_buffer_row, line_number))
2179 })
2180 .collect();
2181 Arc::new(line_numbers)
2182 }
2183
2184 fn layout_crease_toggles(
2185 &self,
2186 rows: Range<DisplayRow>,
2187 row_infos: &[RowInfo],
2188 active_rows: &BTreeMap<DisplayRow, bool>,
2189 snapshot: &EditorSnapshot,
2190 window: &mut Window,
2191 cx: &mut App,
2192 ) -> Vec<Option<AnyElement>> {
2193 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2194 && snapshot.mode == EditorMode::Full
2195 && self.editor.read(cx).is_singleton(cx);
2196 if include_fold_statuses {
2197 row_infos
2198 .into_iter()
2199 .enumerate()
2200 .map(|(ix, info)| {
2201 let row = info.multibuffer_row?;
2202 let display_row = DisplayRow(rows.start.0 + ix as u32);
2203 let active = active_rows.contains_key(&display_row);
2204
2205 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2206 })
2207 .collect()
2208 } else {
2209 Vec::new()
2210 }
2211 }
2212
2213 fn layout_crease_trailers(
2214 &self,
2215 buffer_rows: impl IntoIterator<Item = RowInfo>,
2216 snapshot: &EditorSnapshot,
2217 window: &mut Window,
2218 cx: &mut App,
2219 ) -> Vec<Option<AnyElement>> {
2220 buffer_rows
2221 .into_iter()
2222 .map(|row_info| {
2223 if let Some(row) = row_info.multibuffer_row {
2224 snapshot.render_crease_trailer(row, window, cx)
2225 } else {
2226 None
2227 }
2228 })
2229 .collect()
2230 }
2231
2232 fn layout_lines(
2233 rows: Range<DisplayRow>,
2234 snapshot: &EditorSnapshot,
2235 style: &EditorStyle,
2236 editor_width: Pixels,
2237 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2238 window: &mut Window,
2239 cx: &mut App,
2240 ) -> Vec<LineWithInvisibles> {
2241 if rows.start >= rows.end {
2242 return Vec::new();
2243 }
2244
2245 // Show the placeholder when the editor is empty
2246 if snapshot.is_empty() {
2247 let font_size = style.text.font_size.to_pixels(window.rem_size());
2248 let placeholder_color = cx.theme().colors().text_placeholder;
2249 let placeholder_text = snapshot.placeholder_text();
2250
2251 let placeholder_lines = placeholder_text
2252 .as_ref()
2253 .map_or("", AsRef::as_ref)
2254 .split('\n')
2255 .skip(rows.start.0 as usize)
2256 .chain(iter::repeat(""))
2257 .take(rows.len());
2258 placeholder_lines
2259 .filter_map(move |line| {
2260 let run = TextRun {
2261 len: line.len(),
2262 font: style.text.font(),
2263 color: placeholder_color,
2264 background_color: None,
2265 underline: Default::default(),
2266 strikethrough: None,
2267 };
2268 window
2269 .text_system()
2270 .shape_line(line.to_string().into(), font_size, &[run])
2271 .log_err()
2272 })
2273 .map(|line| LineWithInvisibles {
2274 width: line.width,
2275 len: line.len,
2276 fragments: smallvec![LineFragment::Text(line)],
2277 invisibles: Vec::new(),
2278 font_size,
2279 })
2280 .collect()
2281 } else {
2282 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2283 LineWithInvisibles::from_chunks(
2284 chunks,
2285 &style,
2286 MAX_LINE_LEN,
2287 rows.len(),
2288 snapshot.mode,
2289 editor_width,
2290 is_row_soft_wrapped,
2291 window,
2292 cx,
2293 )
2294 }
2295 }
2296
2297 #[allow(clippy::too_many_arguments)]
2298 fn prepaint_lines(
2299 &self,
2300 start_row: DisplayRow,
2301 line_layouts: &mut [LineWithInvisibles],
2302 line_height: Pixels,
2303 scroll_pixel_position: gpui::Point<Pixels>,
2304 content_origin: gpui::Point<Pixels>,
2305 window: &mut Window,
2306 cx: &mut App,
2307 ) -> SmallVec<[AnyElement; 1]> {
2308 let mut line_elements = SmallVec::new();
2309 for (ix, line) in line_layouts.iter_mut().enumerate() {
2310 let row = start_row + DisplayRow(ix as u32);
2311 line.prepaint(
2312 line_height,
2313 scroll_pixel_position,
2314 row,
2315 content_origin,
2316 &mut line_elements,
2317 window,
2318 cx,
2319 );
2320 }
2321 line_elements
2322 }
2323
2324 #[allow(clippy::too_many_arguments)]
2325 fn render_block(
2326 &self,
2327 block: &Block,
2328 available_width: AvailableSpace,
2329 block_id: BlockId,
2330 block_row_start: DisplayRow,
2331 snapshot: &EditorSnapshot,
2332 text_x: Pixels,
2333 rows: &Range<DisplayRow>,
2334 line_layouts: &[LineWithInvisibles],
2335 gutter_dimensions: &GutterDimensions,
2336 line_height: Pixels,
2337 em_width: Pixels,
2338 text_hitbox: &Hitbox,
2339 editor_width: Pixels,
2340 scroll_width: &mut Pixels,
2341 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2342 selections: &[Selection<Point>],
2343 selected_buffer_ids: &Vec<BufferId>,
2344 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2345 sticky_header_excerpt_id: Option<ExcerptId>,
2346 window: &mut Window,
2347 cx: &mut App,
2348 ) -> (AnyElement, Size<Pixels>) {
2349 let mut element = match block {
2350 Block::Custom(block) => {
2351 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2352 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2353 let align_to = block_start.to_display_point(snapshot);
2354 let anchor_x = text_x
2355 + if rows.contains(&align_to.row()) {
2356 line_layouts[align_to.row().minus(rows.start) as usize]
2357 .x_for_index(align_to.column() as usize)
2358 } else {
2359 layout_line(
2360 align_to.row(),
2361 snapshot,
2362 &self.style,
2363 editor_width,
2364 is_row_soft_wrapped,
2365 window,
2366 cx,
2367 )
2368 .x_for_index(align_to.column() as usize)
2369 };
2370
2371 let selected = selections
2372 .binary_search_by(|selection| {
2373 if selection.end <= block_start {
2374 Ordering::Less
2375 } else if selection.start >= block_end {
2376 Ordering::Greater
2377 } else {
2378 Ordering::Equal
2379 }
2380 })
2381 .is_ok();
2382
2383 div()
2384 .size_full()
2385 .child(block.render(&mut BlockContext {
2386 window,
2387 app: cx,
2388 anchor_x,
2389 gutter_dimensions,
2390 line_height,
2391 em_width,
2392 block_id,
2393 selected,
2394 max_width: text_hitbox.size.width.max(*scroll_width),
2395 editor_style: &self.style,
2396 }))
2397 .into_any()
2398 }
2399
2400 Block::FoldedBuffer {
2401 first_excerpt,
2402 prev_excerpt,
2403 show_excerpt_controls,
2404 height,
2405 } => {
2406 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2407 let icon_offset = gutter_dimensions.width
2408 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2409 let mut result = v_flex().id(block_id).w_full();
2410
2411 if let Some(prev_excerpt) = prev_excerpt {
2412 if *show_excerpt_controls {
2413 result =
2414 result.child(
2415 h_flex()
2416 .id("expand_down_hit_area")
2417 .w(icon_offset)
2418 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2419 * window.line_height())
2420 .flex_none()
2421 .justify_end()
2422 .child(self.render_expand_excerpt_button(
2423 IconName::ArrowDownFromLine,
2424 None,
2425 cx,
2426 ))
2427 .on_click(window.listener_for(&self.editor, {
2428 let excerpt_id = prev_excerpt.id;
2429 let direction = ExpandExcerptDirection::Down;
2430 move |editor, _, _, cx| {
2431 editor.expand_excerpt(excerpt_id, direction, cx);
2432 cx.stop_propagation();
2433 }
2434 })),
2435 );
2436 }
2437 }
2438
2439 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2440 result
2441 .child(self.render_buffer_header(
2442 first_excerpt,
2443 true,
2444 selected,
2445 jump_data,
2446 window,
2447 cx,
2448 ))
2449 .into_any_element()
2450 }
2451
2452 Block::ExcerptBoundary {
2453 prev_excerpt,
2454 next_excerpt,
2455 show_excerpt_controls,
2456 height,
2457 starts_new_buffer,
2458 } => {
2459 let icon_offset = gutter_dimensions.width
2460 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2461 let header_height =
2462 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2463 let color = cx.theme().colors().clone();
2464 let hover_color = color.border_variant.opacity(0.5);
2465 let focus_handle = self.editor.focus_handle(cx).clone();
2466
2467 let mut result = v_flex().id(block_id).w_full();
2468 let expand_area = |id: SharedString| {
2469 h_flex()
2470 .id(id)
2471 .w_full()
2472 .cursor_pointer()
2473 .block_mouse_down()
2474 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2475 .hover(|style| style.bg(hover_color))
2476 .tooltip({
2477 let focus_handle = focus_handle.clone();
2478 move |window, cx| {
2479 Tooltip::for_action_in(
2480 "Expand Excerpt",
2481 &ExpandExcerpts { lines: 0 },
2482 &focus_handle,
2483 window,
2484 cx,
2485 )
2486 }
2487 })
2488 };
2489
2490 if let Some(prev_excerpt) = prev_excerpt {
2491 if *show_excerpt_controls {
2492 let group_name = "expand-down";
2493
2494 result = result.child(
2495 expand_area(format!("block-{}-down", block_id).into())
2496 .group(group_name)
2497 .child(
2498 h_flex()
2499 .w(icon_offset)
2500 .h(header_height)
2501 .flex_none()
2502 .justify_end()
2503 .child(self.render_expand_excerpt_button(
2504 IconName::ArrowDownFromLine,
2505 Some(group_name.to_string()),
2506 cx,
2507 )),
2508 )
2509 .on_click(window.listener_for(&self.editor, {
2510 let excerpt_id = prev_excerpt.id;
2511 let direction = ExpandExcerptDirection::Down;
2512 move |editor, _, _, cx| {
2513 editor.expand_excerpt(excerpt_id, direction, cx);
2514 cx.stop_propagation();
2515 }
2516 })),
2517 );
2518 }
2519 }
2520
2521 if let Some(next_excerpt) = next_excerpt {
2522 let jump_data =
2523 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2524
2525 if *starts_new_buffer {
2526 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2527 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2528
2529 result = result.child(self.render_buffer_header(
2530 next_excerpt,
2531 false,
2532 selected,
2533 jump_data,
2534 window,
2535 cx,
2536 ));
2537 } else {
2538 result = result
2539 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2540 }
2541
2542 if *show_excerpt_controls {
2543 let group_name = "expand-up-first";
2544
2545 result = result.child(
2546 h_flex().group(group_name).child(
2547 expand_area(format!("block-{}-up-first", block_id).into())
2548 .h(header_height)
2549 .child(
2550 h_flex()
2551 .w(icon_offset)
2552 .h(header_height)
2553 .flex_none()
2554 .justify_end()
2555 .child(self.render_expand_excerpt_button(
2556 IconName::ArrowUpFromLine,
2557 Some(group_name.to_string()),
2558 cx,
2559 )),
2560 )
2561 .on_click(window.listener_for(&self.editor, {
2562 let excerpt_id = next_excerpt.id;
2563 let direction = ExpandExcerptDirection::Up;
2564 move |editor, _, _, cx| {
2565 editor.expand_excerpt(excerpt_id, direction, cx);
2566 cx.stop_propagation();
2567 }
2568 })),
2569 ),
2570 );
2571 }
2572 } else {
2573 let group_name = "expand-up-subsequent";
2574
2575 if *show_excerpt_controls {
2576 result = result.child(
2577 h_flex()
2578 .relative()
2579 .group(group_name)
2580 .child(
2581 div()
2582 .top(px(0.))
2583 .absolute()
2584 .w_full()
2585 .h_px()
2586 .bg(color.border_variant),
2587 )
2588 .child(
2589 expand_area(format!("block-{}-up", block_id).into())
2590 .h(header_height)
2591 .child(
2592 h_flex()
2593 .w(icon_offset)
2594 .h(header_height)
2595 .flex_none()
2596 .justify_end()
2597 .child(if *show_excerpt_controls {
2598 self.render_expand_excerpt_button(
2599 IconName::ArrowUpFromLine,
2600 Some(group_name.to_string()),
2601 cx,
2602 )
2603 } else {
2604 ButtonLike::new("jump-icon")
2605 .style(ButtonStyle::Transparent)
2606 .child(
2607 svg()
2608 .path(
2609 IconName::ArrowUpRight
2610 .path(),
2611 )
2612 .size(IconSize::XSmall.rems())
2613 .text_color(
2614 color.border_variant,
2615 )
2616 .group_hover(
2617 group_name,
2618 |style| {
2619 style.text_color(
2620 color.border,
2621 )
2622 },
2623 ),
2624 )
2625 }),
2626 )
2627 .on_click(window.listener_for(&self.editor, {
2628 let excerpt_id = next_excerpt.id;
2629 let direction = ExpandExcerptDirection::Up;
2630 move |editor, _, _, cx| {
2631 editor
2632 .expand_excerpt(excerpt_id, direction, cx);
2633 cx.stop_propagation();
2634 }
2635 })),
2636 ),
2637 );
2638 }
2639 };
2640 }
2641
2642 result.into_any()
2643 }
2644 };
2645
2646 // Discover the element's content height, then round up to the nearest multiple of line height.
2647 let preliminary_size = element.layout_as_root(
2648 size(available_width, AvailableSpace::MinContent),
2649 window,
2650 cx,
2651 );
2652 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2653 let final_size = if preliminary_size.height == quantized_height {
2654 preliminary_size
2655 } else {
2656 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2657 };
2658
2659 if let BlockId::Custom(custom_block_id) = block_id {
2660 if block.height() > 0 {
2661 let element_height_in_lines =
2662 ((final_size.height / line_height).ceil() as u32).max(1);
2663 if element_height_in_lines != block.height() {
2664 resized_blocks.insert(custom_block_id, element_height_in_lines);
2665 }
2666 }
2667 }
2668
2669 (element, final_size)
2670 }
2671
2672 fn render_buffer_header(
2673 &self,
2674 for_excerpt: &ExcerptInfo,
2675 is_folded: bool,
2676 is_selected: bool,
2677 jump_data: JumpData,
2678 window: &mut Window,
2679 cx: &mut App,
2680 ) -> Div {
2681 let include_root = self
2682 .editor
2683 .read(cx)
2684 .project
2685 .as_ref()
2686 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2687 .unwrap_or_default();
2688 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2689 let filename = path
2690 .as_ref()
2691 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2692 let parent_path = path.as_ref().and_then(|path| {
2693 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2694 });
2695 let focus_handle = self.editor.focus_handle(cx);
2696 let colors = cx.theme().colors();
2697
2698 div()
2699 .px_2()
2700 .pt_2()
2701 .w_full()
2702 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2703 .child(
2704 h_flex()
2705 .size_full()
2706 .gap_2()
2707 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2708 .pl_0p5()
2709 .pr_5()
2710 .rounded_md()
2711 .shadow_md()
2712 .border_1()
2713 .map(|div| {
2714 let border_color = if is_selected && is_folded {
2715 colors.border_focused
2716 } else {
2717 colors.border
2718 };
2719 div.border_color(border_color)
2720 })
2721 .bg(colors.editor_subheader_background)
2722 .hover(|style| style.bg(colors.element_hover))
2723 .map(|header| {
2724 let editor = self.editor.clone();
2725 let buffer_id = for_excerpt.buffer_id;
2726 let toggle_chevron_icon =
2727 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2728 header.child(
2729 div()
2730 .hover(|style| style.bg(colors.element_selected))
2731 .rounded_sm()
2732 .child(
2733 ButtonLike::new("toggle-buffer-fold")
2734 .style(ui::ButtonStyle::Transparent)
2735 .size(ButtonSize::Large)
2736 .width(px(30.).into())
2737 .children(toggle_chevron_icon)
2738 .tooltip({
2739 let focus_handle = focus_handle.clone();
2740 move |window, cx| {
2741 Tooltip::for_action_in(
2742 "Toggle Excerpt Fold",
2743 &ToggleFold,
2744 &focus_handle,
2745 window,
2746 cx,
2747 )
2748 }
2749 })
2750 .on_click(move |_, _, cx| {
2751 if is_folded {
2752 editor.update(cx, |editor, cx| {
2753 editor.unfold_buffer(buffer_id, cx);
2754 });
2755 } else {
2756 editor.update(cx, |editor, cx| {
2757 editor.fold_buffer(buffer_id, cx);
2758 });
2759 }
2760 }),
2761 ),
2762 )
2763 })
2764 .child(
2765 h_flex()
2766 .cursor_pointer()
2767 .id("path header block")
2768 .size_full()
2769 .justify_between()
2770 .child(
2771 h_flex()
2772 .gap_2()
2773 .child(
2774 filename
2775 .map(SharedString::from)
2776 .unwrap_or_else(|| "untitled".into()),
2777 )
2778 .when_some(parent_path, |then, path| {
2779 then.child(div().child(path).text_color(colors.text_muted))
2780 }),
2781 )
2782 .when(is_selected, |el| {
2783 el.child(
2784 h_flex()
2785 .id("jump-to-file-button")
2786 .gap_2p5()
2787 .child(Label::new("Jump To File"))
2788 .children(
2789 KeyBinding::for_action_in(
2790 &OpenExcerpts,
2791 &focus_handle,
2792 window,
2793 )
2794 .map(|binding| binding.into_any_element()),
2795 ),
2796 )
2797 })
2798 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2799 .on_click(window.listener_for(&self.editor, {
2800 move |editor, e: &ClickEvent, window, cx| {
2801 editor.open_excerpts_common(
2802 Some(jump_data.clone()),
2803 e.down.modifiers.secondary(),
2804 window,
2805 cx,
2806 );
2807 }
2808 })),
2809 ),
2810 )
2811 }
2812
2813 fn render_expand_excerpt_button(
2814 &self,
2815 icon: IconName,
2816 group_name: impl Into<Option<String>>,
2817 cx: &mut App,
2818 ) -> ButtonLike {
2819 let group_name = group_name.into();
2820 ButtonLike::new("expand-icon")
2821 .style(ButtonStyle::Transparent)
2822 .child(
2823 svg()
2824 .path(icon.path())
2825 .size(IconSize::XSmall.rems())
2826 .text_color(cx.theme().colors().editor_line_number)
2827 .when_some(group_name, |svg, group_name| {
2828 svg.group_hover(group_name, |style| {
2829 style.text_color(cx.theme().colors().editor_active_line_number)
2830 })
2831 }),
2832 )
2833 }
2834
2835 #[allow(clippy::too_many_arguments)]
2836 fn render_blocks(
2837 &self,
2838 rows: Range<DisplayRow>,
2839 snapshot: &EditorSnapshot,
2840 hitbox: &Hitbox,
2841 text_hitbox: &Hitbox,
2842 editor_width: Pixels,
2843 scroll_width: &mut Pixels,
2844 gutter_dimensions: &GutterDimensions,
2845 em_width: Pixels,
2846 text_x: Pixels,
2847 line_height: Pixels,
2848 line_layouts: &[LineWithInvisibles],
2849 selections: &[Selection<Point>],
2850 selected_buffer_ids: &Vec<BufferId>,
2851 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2852 sticky_header_excerpt_id: Option<ExcerptId>,
2853 window: &mut Window,
2854 cx: &mut App,
2855 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2856 let (fixed_blocks, non_fixed_blocks) = snapshot
2857 .blocks_in_range(rows.clone())
2858 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2859
2860 let mut focused_block = self
2861 .editor
2862 .update(cx, |editor, _| editor.take_focused_block());
2863 let mut fixed_block_max_width = Pixels::ZERO;
2864 let mut blocks = Vec::new();
2865 let mut resized_blocks = HashMap::default();
2866
2867 for (row, block) in fixed_blocks {
2868 let block_id = block.id();
2869
2870 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2871 focused_block = None;
2872 }
2873
2874 let (element, element_size) = self.render_block(
2875 block,
2876 AvailableSpace::MinContent,
2877 block_id,
2878 row,
2879 snapshot,
2880 text_x,
2881 &rows,
2882 line_layouts,
2883 gutter_dimensions,
2884 line_height,
2885 em_width,
2886 text_hitbox,
2887 editor_width,
2888 scroll_width,
2889 &mut resized_blocks,
2890 selections,
2891 selected_buffer_ids,
2892 is_row_soft_wrapped,
2893 sticky_header_excerpt_id,
2894 window,
2895 cx,
2896 );
2897 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2898 blocks.push(BlockLayout {
2899 id: block_id,
2900 row: Some(row),
2901 element,
2902 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2903 style: BlockStyle::Fixed,
2904 });
2905 }
2906
2907 for (row, block) in non_fixed_blocks {
2908 let style = block.style();
2909 let width = match style {
2910 BlockStyle::Sticky => hitbox.size.width,
2911 BlockStyle::Flex => hitbox
2912 .size
2913 .width
2914 .max(fixed_block_max_width)
2915 .max(gutter_dimensions.width + *scroll_width),
2916 BlockStyle::Fixed => unreachable!(),
2917 };
2918 let block_id = block.id();
2919
2920 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2921 focused_block = None;
2922 }
2923
2924 let (element, element_size) = self.render_block(
2925 block,
2926 width.into(),
2927 block_id,
2928 row,
2929 snapshot,
2930 text_x,
2931 &rows,
2932 line_layouts,
2933 gutter_dimensions,
2934 line_height,
2935 em_width,
2936 text_hitbox,
2937 editor_width,
2938 scroll_width,
2939 &mut resized_blocks,
2940 selections,
2941 selected_buffer_ids,
2942 is_row_soft_wrapped,
2943 sticky_header_excerpt_id,
2944 window,
2945 cx,
2946 );
2947
2948 blocks.push(BlockLayout {
2949 id: block_id,
2950 row: Some(row),
2951 element,
2952 available_space: size(width.into(), element_size.height.into()),
2953 style,
2954 });
2955 }
2956
2957 if let Some(focused_block) = focused_block {
2958 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2959 if focus_handle.is_focused(window) {
2960 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2961 let style = block.style();
2962 let width = match style {
2963 BlockStyle::Fixed => AvailableSpace::MinContent,
2964 BlockStyle::Flex => AvailableSpace::Definite(
2965 hitbox
2966 .size
2967 .width
2968 .max(fixed_block_max_width)
2969 .max(gutter_dimensions.width + *scroll_width),
2970 ),
2971 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2972 };
2973
2974 let (element, element_size) = self.render_block(
2975 &block,
2976 width,
2977 focused_block.id,
2978 rows.end,
2979 snapshot,
2980 text_x,
2981 &rows,
2982 line_layouts,
2983 gutter_dimensions,
2984 line_height,
2985 em_width,
2986 text_hitbox,
2987 editor_width,
2988 scroll_width,
2989 &mut resized_blocks,
2990 selections,
2991 selected_buffer_ids,
2992 is_row_soft_wrapped,
2993 sticky_header_excerpt_id,
2994 window,
2995 cx,
2996 );
2997
2998 blocks.push(BlockLayout {
2999 id: block.id(),
3000 row: None,
3001 element,
3002 available_space: size(width, element_size.height.into()),
3003 style,
3004 });
3005 }
3006 }
3007 }
3008 }
3009
3010 if resized_blocks.is_empty() {
3011 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3012 Ok(blocks)
3013 } else {
3014 Err(resized_blocks)
3015 }
3016 }
3017
3018 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3019 /// a restart of rendering for the editor based on the new sizes.
3020 #[allow(clippy::too_many_arguments)]
3021 fn layout_blocks(
3022 &self,
3023 blocks: &mut Vec<BlockLayout>,
3024 block_starts: &mut HashSet<DisplayRow>,
3025 hitbox: &Hitbox,
3026 line_height: Pixels,
3027 scroll_pixel_position: gpui::Point<Pixels>,
3028 window: &mut Window,
3029 cx: &mut App,
3030 ) {
3031 for block in blocks {
3032 let mut origin = if let Some(row) = block.row {
3033 block_starts.insert(row);
3034 hitbox.origin
3035 + point(
3036 Pixels::ZERO,
3037 row.as_f32() * line_height - scroll_pixel_position.y,
3038 )
3039 } else {
3040 // Position the block outside the visible area
3041 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3042 };
3043
3044 if !matches!(block.style, BlockStyle::Sticky) {
3045 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3046 }
3047
3048 let focus_handle =
3049 block
3050 .element
3051 .prepaint_as_root(origin, block.available_space, window, cx);
3052
3053 if let Some(focus_handle) = focus_handle {
3054 self.editor.update(cx, |editor, _cx| {
3055 editor.set_focused_block(FocusedBlock {
3056 id: block.id,
3057 focus_handle: focus_handle.downgrade(),
3058 });
3059 });
3060 }
3061 }
3062 }
3063
3064 #[allow(clippy::too_many_arguments)]
3065 fn layout_sticky_buffer_header(
3066 &self,
3067 StickyHeaderExcerpt {
3068 excerpt,
3069 next_excerpt_controls_present,
3070 next_buffer_row,
3071 }: StickyHeaderExcerpt<'_>,
3072 scroll_position: f32,
3073 line_height: Pixels,
3074 snapshot: &EditorSnapshot,
3075 hitbox: &Hitbox,
3076 selected_buffer_ids: &Vec<BufferId>,
3077 window: &mut Window,
3078 cx: &mut App,
3079 ) -> AnyElement {
3080 let jump_data = header_jump_data(
3081 snapshot,
3082 DisplayRow(scroll_position as u32),
3083 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3084 excerpt,
3085 );
3086
3087 let editor_bg_color = cx.theme().colors().editor_background;
3088
3089 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3090
3091 let mut header = v_flex()
3092 .relative()
3093 .child(
3094 div()
3095 .w(hitbox.bounds.size.width)
3096 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3097 .bg(linear_gradient(
3098 0.,
3099 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3100 linear_color_stop(editor_bg_color, 0.6),
3101 ))
3102 .absolute()
3103 .top_0(),
3104 )
3105 .child(
3106 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3107 .into_any_element(),
3108 )
3109 .into_any_element();
3110
3111 let mut origin = hitbox.origin;
3112
3113 if let Some(next_buffer_row) = next_buffer_row {
3114 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3115
3116 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3117
3118 if next_excerpt_controls_present {
3119 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3120 }
3121
3122 let offset = scroll_position - max_row as f32;
3123
3124 if offset > 0.0 {
3125 origin.y -= Pixels(offset) * line_height;
3126 }
3127 }
3128
3129 let size = size(
3130 AvailableSpace::Definite(hitbox.size.width),
3131 AvailableSpace::MinContent,
3132 );
3133
3134 header.prepaint_as_root(origin, size, window, cx);
3135
3136 header
3137 }
3138
3139 #[allow(clippy::too_many_arguments)]
3140 fn layout_cursor_popovers(
3141 &self,
3142 line_height: Pixels,
3143 text_hitbox: &Hitbox,
3144 content_origin: gpui::Point<Pixels>,
3145 start_row: DisplayRow,
3146 scroll_pixel_position: gpui::Point<Pixels>,
3147 line_layouts: &[LineWithInvisibles],
3148 cursor: DisplayPoint,
3149 cursor_point: Point,
3150 style: &EditorStyle,
3151 window: &mut Window,
3152 cx: &mut App,
3153 ) {
3154 let mut min_menu_height = Pixels::ZERO;
3155 let mut max_menu_height = Pixels::ZERO;
3156 let mut height_above_menu = Pixels::ZERO;
3157 let height_below_menu = Pixels::ZERO;
3158 let mut edit_prediction_popover_visible = false;
3159 let mut context_menu_visible = false;
3160
3161 {
3162 let editor = self.editor.read(cx);
3163 if editor.has_active_completions_menu() && editor.show_inline_completions_in_menu(cx) {
3164 height_above_menu +=
3165 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3166 edit_prediction_popover_visible = true;
3167 }
3168
3169 if editor.context_menu_visible() {
3170 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3171 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3172 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3173 context_menu_visible = true;
3174 }
3175 }
3176 }
3177
3178 let visible = edit_prediction_popover_visible || context_menu_visible;
3179 if !visible {
3180 return;
3181 }
3182
3183 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3184 let target_position = content_origin
3185 + gpui::Point {
3186 x: cmp::max(
3187 px(0.),
3188 cursor_row_layout.x_for_index(cursor.column() as usize)
3189 - scroll_pixel_position.x,
3190 ),
3191 y: cmp::max(
3192 px(0.),
3193 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3194 ),
3195 };
3196
3197 let viewport_bounds =
3198 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3199 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3200 ..Default::default()
3201 });
3202
3203 let min_height = height_above_menu + min_menu_height + height_below_menu;
3204 let max_height = height_above_menu + max_menu_height + height_below_menu;
3205 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3206 target_position,
3207 line_height,
3208 min_height,
3209 max_height,
3210 text_hitbox,
3211 viewport_bounds,
3212 window,
3213 cx,
3214 |height, max_width_for_stable_x, y_flipped, window, cx| {
3215 // First layout the menu to get its size - others can be at least this wide.
3216 let context_menu = if context_menu_visible {
3217 let menu_height = if y_flipped {
3218 height - height_below_menu
3219 } else {
3220 height - height_above_menu
3221 };
3222 let mut element = self
3223 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3224 .unwrap();
3225 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3226 Some((CursorPopoverType::CodeContextMenu, element, size))
3227 } else {
3228 None
3229 };
3230 let min_width = context_menu
3231 .as_ref()
3232 .map_or(px(0.), |(_, _, size)| size.width);
3233 let max_width = max_width_for_stable_x.max(
3234 context_menu
3235 .as_ref()
3236 .map_or(px(0.), |(_, _, size)| size.width),
3237 );
3238
3239 let edit_prediction = if edit_prediction_popover_visible {
3240 let accept_keystroke: Option<Keystroke>;
3241
3242 // TODO: load modifier from keymap.
3243 // `bindings_for_action_in` returns `None` in Linux, and is intermittent on macOS
3244 #[cfg(target_os = "macos")]
3245 {
3246 // let bindings = window.bindings_for_action_in(
3247 // &crate::AcceptInlineCompletion,
3248 // &self.editor.focus_handle(cx),
3249 // );
3250
3251 // let last_binding = bindings.last();
3252
3253 // accept_keystroke = if let Some(binding) = last_binding {
3254 // match &binding.keystrokes() {
3255 // // TODO: no need to clone once this logic works on linux.
3256 // [keystroke] => Some(keystroke.clone()),
3257 // _ => None,
3258 // }
3259 // } else {
3260 // None
3261 // };
3262 accept_keystroke = Some(Keystroke {
3263 modifiers: gpui::Modifiers {
3264 alt: true,
3265 ..Default::default()
3266 },
3267 key: "tab".to_string(),
3268 key_char: None,
3269 });
3270 }
3271
3272 #[cfg(not(target_os = "macos"))]
3273 {
3274 accept_keystroke = Some(Keystroke {
3275 modifiers: gpui::Modifiers {
3276 alt: true,
3277 ..Default::default()
3278 },
3279 key: "enter".to_string(),
3280 key_char: None,
3281 });
3282 }
3283
3284 self.editor.update(cx, move |editor, cx| {
3285 let mut element = editor.render_edit_prediction_cursor_popover(
3286 min_width,
3287 max_width,
3288 cursor_point,
3289 start_row,
3290 &line_layouts,
3291 style,
3292 accept_keystroke.as_ref()?,
3293 window,
3294 cx,
3295 )?;
3296 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3297 Some((CursorPopoverType::EditPrediction, element, size))
3298 })
3299 } else {
3300 None
3301 };
3302 vec![edit_prediction, context_menu]
3303 .into_iter()
3304 .flatten()
3305 .collect::<Vec<_>>()
3306 },
3307 ) else {
3308 return;
3309 };
3310
3311 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3312 .iter()
3313 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3314 else {
3315 return;
3316 };
3317 let last_ix = laid_out_popovers.len() - 1;
3318 let menu_is_last = menu_ix == last_ix;
3319 let first_popover_bounds = laid_out_popovers[0].1;
3320 let last_popover_bounds = laid_out_popovers[last_ix].1;
3321
3322 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3323 // right, and otherwise it goes below or to the right.
3324 let mut target_bounds = Bounds::from_corners(
3325 first_popover_bounds.origin,
3326 last_popover_bounds.bottom_right(),
3327 );
3328 target_bounds.size.width = menu_bounds.size.width;
3329
3330 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3331 // based on this is preferred for layout stability.
3332 let mut max_target_bounds = target_bounds;
3333 max_target_bounds.size.height = max_height;
3334 if y_flipped {
3335 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3336 }
3337
3338 // Add spacing around `target_bounds` and `max_target_bounds`.
3339 let mut extend_amount = Edges::all(MENU_GAP);
3340 if y_flipped {
3341 extend_amount.bottom = line_height;
3342 } else {
3343 extend_amount.top = line_height;
3344 }
3345 let target_bounds = target_bounds.extend(extend_amount);
3346 let max_target_bounds = max_target_bounds.extend(extend_amount);
3347
3348 let must_place_above_or_below =
3349 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3350 laid_out_popovers[menu_ix + 1..]
3351 .iter()
3352 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3353 } else {
3354 false
3355 };
3356
3357 self.layout_context_menu_aside(
3358 y_flipped,
3359 *menu_bounds,
3360 target_bounds,
3361 max_target_bounds,
3362 max_menu_height,
3363 must_place_above_or_below,
3364 text_hitbox,
3365 viewport_bounds,
3366 window,
3367 cx,
3368 );
3369 }
3370
3371 #[allow(clippy::too_many_arguments)]
3372 fn layout_gutter_menu(
3373 &self,
3374 line_height: Pixels,
3375 text_hitbox: &Hitbox,
3376 content_origin: gpui::Point<Pixels>,
3377 scroll_pixel_position: gpui::Point<Pixels>,
3378 gutter_overshoot: Pixels,
3379 window: &mut Window,
3380 cx: &mut App,
3381 ) {
3382 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3383 self.editor.read(cx).context_menu_origin()
3384 else {
3385 return;
3386 };
3387 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3388 // indicator than just a plain first column of the text field.
3389 let target_position = content_origin
3390 + gpui::Point {
3391 x: -gutter_overshoot,
3392 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3393 };
3394 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3395 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3396 let viewport_bounds =
3397 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3398 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3399 ..Default::default()
3400 });
3401 self.layout_popovers_above_or_below_line(
3402 target_position,
3403 line_height,
3404 min_height,
3405 max_height,
3406 text_hitbox,
3407 viewport_bounds,
3408 window,
3409 cx,
3410 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3411 let Some(mut element) =
3412 self.render_context_menu(line_height, height, y_flipped, window, cx)
3413 else {
3414 return vec![];
3415 };
3416 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3417 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3418 },
3419 );
3420 }
3421
3422 #[allow(clippy::too_many_arguments)]
3423 fn layout_popovers_above_or_below_line(
3424 &self,
3425 target_position: gpui::Point<Pixels>,
3426 line_height: Pixels,
3427 min_height: Pixels,
3428 max_height: Pixels,
3429 text_hitbox: &Hitbox,
3430 viewport_bounds: Bounds<Pixels>,
3431 window: &mut Window,
3432 cx: &mut App,
3433 make_sized_popovers: impl FnOnce(
3434 Pixels,
3435 Pixels,
3436 bool,
3437 &mut Window,
3438 &mut App,
3439 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3440 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3441 // If the max height won't fit below and there is more space above, put it above the line.
3442 let bottom_y_when_flipped = target_position.y - line_height;
3443 let available_above = bottom_y_when_flipped - text_hitbox.top();
3444 let available_below = text_hitbox.bottom() - target_position.y;
3445 let y_overflows_below = max_height > available_below;
3446 let mut y_flipped = y_overflows_below && available_above > available_below;
3447 let mut height = cmp::min(
3448 max_height,
3449 if y_flipped {
3450 available_above
3451 } else {
3452 available_below
3453 },
3454 );
3455
3456 // If the min height doesn't fit within text bounds, instead fit within the window.
3457 if height < min_height {
3458 let available_above = bottom_y_when_flipped;
3459 let available_below = viewport_bounds.bottom() - target_position.y;
3460 if available_below > min_height {
3461 y_flipped = false;
3462 height = min_height;
3463 } else if available_above > min_height {
3464 y_flipped = true;
3465 height = min_height;
3466 } else if available_above > available_below {
3467 y_flipped = true;
3468 height = available_above;
3469 } else {
3470 y_flipped = false;
3471 height = available_below;
3472 }
3473 }
3474
3475 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3476
3477 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3478 // for very narrow windows.
3479 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3480 if popovers.is_empty() {
3481 return None;
3482 }
3483
3484 let max_width = popovers
3485 .iter()
3486 .map(|(_, _, size)| size.width)
3487 .max()
3488 .unwrap_or_default();
3489
3490 let mut current_position = gpui::Point {
3491 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3492 // overflow. Include space for the scrollbar.
3493 x: target_position
3494 .x
3495 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3496 y: if y_flipped {
3497 bottom_y_when_flipped
3498 } else {
3499 target_position.y
3500 },
3501 };
3502
3503 let mut laid_out_popovers = popovers
3504 .into_iter()
3505 .map(|(popover_type, element, size)| {
3506 if y_flipped {
3507 current_position.y -= size.height;
3508 }
3509 let position = current_position;
3510 window.defer_draw(element, current_position, 1);
3511 if !y_flipped {
3512 current_position.y += size.height + MENU_GAP;
3513 } else {
3514 current_position.y -= MENU_GAP;
3515 }
3516 (popover_type, Bounds::new(position, size))
3517 })
3518 .collect::<Vec<_>>();
3519
3520 if y_flipped {
3521 laid_out_popovers.reverse();
3522 }
3523
3524 Some((laid_out_popovers, y_flipped))
3525 }
3526
3527 #[allow(clippy::too_many_arguments)]
3528 fn layout_context_menu_aside(
3529 &self,
3530 y_flipped: bool,
3531 menu_bounds: Bounds<Pixels>,
3532 target_bounds: Bounds<Pixels>,
3533 max_target_bounds: Bounds<Pixels>,
3534 max_height: Pixels,
3535 must_place_above_or_below: bool,
3536 text_hitbox: &Hitbox,
3537 viewport_bounds: Bounds<Pixels>,
3538 window: &mut Window,
3539 cx: &mut App,
3540 ) {
3541 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3542 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3543 && !must_place_above_or_below
3544 {
3545 let max_width = cmp::min(
3546 available_within_viewport.right - px(1.),
3547 MENU_ASIDE_MAX_WIDTH,
3548 );
3549 let Some(mut aside) =
3550 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3551 else {
3552 return;
3553 };
3554 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3555 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3556 Some((aside, right_position))
3557 } else {
3558 let max_size = size(
3559 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3560 // won't be needed here.
3561 cmp::min(
3562 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3563 viewport_bounds.right(),
3564 ),
3565 cmp::min(
3566 max_height,
3567 cmp::max(
3568 available_within_viewport.top,
3569 available_within_viewport.bottom,
3570 ),
3571 ) - POPOVER_Y_PADDING,
3572 );
3573 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3574 return;
3575 };
3576 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3577
3578 let top_position = point(
3579 menu_bounds.origin.x,
3580 target_bounds.top() - actual_size.height,
3581 );
3582 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3583
3584 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3585 // Prefer to fit on the same side of the line as the menu, then on the other side of
3586 // the line.
3587 if !y_flipped && wanted.height < available.bottom {
3588 Some(bottom_position)
3589 } else if !y_flipped && wanted.height < available.top {
3590 Some(top_position)
3591 } else if y_flipped && wanted.height < available.top {
3592 Some(top_position)
3593 } else if y_flipped && wanted.height < available.bottom {
3594 Some(bottom_position)
3595 } else {
3596 None
3597 }
3598 };
3599
3600 // Prefer choosing a direction using max sizes rather than actual size for stability.
3601 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3602 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3603 let aside_position = fit_within(available_within_text, wanted)
3604 // Fallback: fit max size in window.
3605 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3606 // Fallback: fit actual size in window.
3607 .or_else(|| fit_within(available_within_viewport, actual_size));
3608
3609 aside_position.map(|position| (aside, position))
3610 };
3611
3612 // Skip drawing if it doesn't fit anywhere.
3613 if let Some((aside, position)) = positioned_aside {
3614 window.defer_draw(aside, position, 1);
3615 }
3616 }
3617
3618 fn render_context_menu(
3619 &self,
3620 line_height: Pixels,
3621 height: Pixels,
3622 y_flipped: bool,
3623 window: &mut Window,
3624 cx: &mut App,
3625 ) -> Option<AnyElement> {
3626 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3627 self.editor.update(cx, |editor, cx| {
3628 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3629 })
3630 }
3631
3632 fn render_context_menu_aside(
3633 &self,
3634 max_size: Size<Pixels>,
3635
3636 cx: &mut App,
3637 ) -> Option<AnyElement> {
3638 if max_size.width < px(100.) || max_size.height < px(12.) {
3639 None
3640 } else {
3641 self.editor.update(cx, |editor, cx| {
3642 editor.render_context_menu_aside(&self.style, max_size, cx)
3643 })
3644 }
3645 }
3646
3647 #[allow(clippy::too_many_arguments)]
3648 fn layout_inline_completion_popover(
3649 &self,
3650 text_bounds: &Bounds<Pixels>,
3651 editor_snapshot: &EditorSnapshot,
3652 visible_row_range: Range<DisplayRow>,
3653 scroll_top: f32,
3654 scroll_bottom: f32,
3655 line_layouts: &[LineWithInvisibles],
3656 line_height: Pixels,
3657 scroll_pixel_position: gpui::Point<Pixels>,
3658 newest_selection_head: Option<DisplayPoint>,
3659 editor_width: Pixels,
3660 style: &EditorStyle,
3661 window: &mut Window,
3662 cx: &mut App,
3663 ) -> Option<AnyElement> {
3664 const PADDING_X: Pixels = Pixels(24.);
3665 const PADDING_Y: Pixels = Pixels(2.);
3666
3667 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3668
3669 match &active_inline_completion.completion {
3670 InlineCompletion::Move { target, .. } => {
3671 let previewing = false;
3672 let target_display_point = target.to_display_point(editor_snapshot);
3673 if target_display_point.row().as_f32() < scroll_top {
3674 let mut element = inline_completion_accept_indicator(
3675 "Jump to Edit",
3676 Some(IconName::ArrowUp),
3677 previewing,
3678 self.editor.focus_handle(cx),
3679 window,
3680 cx,
3681 );
3682 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3683 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3684 element.prepaint_at(text_bounds.origin + offset, window, cx);
3685 Some(element)
3686 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3687 let mut element = inline_completion_accept_indicator(
3688 "Jump to Edit",
3689 Some(IconName::ArrowDown),
3690 previewing,
3691 self.editor.focus_handle(cx),
3692 window,
3693 cx,
3694 );
3695 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3696 let offset = point(
3697 (text_bounds.size.width - size.width) / 2.,
3698 text_bounds.size.height - size.height - PADDING_Y,
3699 );
3700 element.prepaint_at(text_bounds.origin + offset, window, cx);
3701 Some(element)
3702 } else {
3703 let mut element = inline_completion_accept_indicator(
3704 "Jump to Edit",
3705 None,
3706 previewing,
3707 self.editor.focus_handle(cx),
3708 window,
3709 cx,
3710 );
3711
3712 let target_line_end = DisplayPoint::new(
3713 target_display_point.row(),
3714 editor_snapshot.line_len(target_display_point.row()),
3715 );
3716 let origin = self.editor.update(cx, |editor, _cx| {
3717 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3718 })?;
3719 element.prepaint_as_root(
3720 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3721 AvailableSpace::min_size(),
3722 window,
3723 cx,
3724 );
3725 Some(element)
3726 }
3727 }
3728 InlineCompletion::Edit {
3729 edits,
3730 edit_preview,
3731 display_mode,
3732 snapshot,
3733 } => {
3734 if self.editor.read(cx).has_active_completions_menu() {
3735 return None;
3736 }
3737
3738 let edit_start = edits
3739 .first()
3740 .unwrap()
3741 .0
3742 .start
3743 .to_display_point(editor_snapshot);
3744 let edit_end = edits
3745 .last()
3746 .unwrap()
3747 .0
3748 .end
3749 .to_display_point(editor_snapshot);
3750
3751 let is_visible = visible_row_range.contains(&edit_start.row())
3752 || visible_row_range.contains(&edit_end.row());
3753 if !is_visible {
3754 return None;
3755 }
3756
3757 match display_mode {
3758 EditDisplayMode::TabAccept(previewing) => {
3759 let previewing = *previewing;
3760 let range = &edits.first()?.0;
3761 let target_display_point = range.end.to_display_point(editor_snapshot);
3762
3763 let target_line_end = DisplayPoint::new(
3764 target_display_point.row(),
3765 editor_snapshot.line_len(target_display_point.row()),
3766 );
3767 let origin = self.editor.update(cx, |editor, _cx| {
3768 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3769 })?;
3770
3771 let mut element = inline_completion_accept_indicator(
3772 "Accept",
3773 None,
3774 previewing,
3775 self.editor.focus_handle(cx),
3776 window,
3777 cx,
3778 );
3779
3780 element.prepaint_as_root(
3781 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3782 AvailableSpace::min_size(),
3783 window,
3784 cx,
3785 );
3786
3787 return Some(element);
3788 }
3789 EditDisplayMode::Inline => return None,
3790 EditDisplayMode::DiffPopover => {}
3791 }
3792
3793 let highlighted_edits = crate::inline_completion_edit_text(
3794 &snapshot,
3795 edits,
3796 edit_preview.as_ref()?,
3797 false,
3798 cx,
3799 );
3800
3801 let line_count = highlighted_edits.text.lines().count();
3802
3803 let longest_row =
3804 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3805 let longest_line_width = if visible_row_range.contains(&longest_row) {
3806 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3807 } else {
3808 layout_line(
3809 longest_row,
3810 editor_snapshot,
3811 style,
3812 editor_width,
3813 |_| false,
3814 window,
3815 cx,
3816 )
3817 .width
3818 };
3819
3820 let styled_text = highlighted_edits.to_styled_text(&style.text);
3821
3822 let mut element = div()
3823 .bg(cx.theme().colors().editor_background)
3824 .border_1()
3825 .border_color(cx.theme().colors().border)
3826 .rounded_md()
3827 .child(styled_text)
3828 .into_any();
3829
3830 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3831 .extend(Edges {
3832 right: -Self::SCROLLBAR_WIDTH,
3833 ..Default::default()
3834 });
3835
3836 let x_after_longest =
3837 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3838
3839 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3840
3841 // Fully visible if it can be displayed within the window (allow overlapping other
3842 // panes). However, this is only allowed if the popover starts within text_bounds.
3843 let is_fully_visible = x_after_longest < text_bounds.right()
3844 && x_after_longest + element_bounds.width < viewport_bounds.right();
3845
3846 let origin = if is_fully_visible {
3847 point(
3848 x_after_longest,
3849 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3850 - scroll_pixel_position.y,
3851 )
3852 } else {
3853 // Avoid overlapping both the edited rows and the user's cursor.
3854 let target_above = DisplayRow(
3855 edit_start
3856 .row()
3857 .0
3858 .min(
3859 newest_selection_head
3860 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3861 )
3862 .saturating_sub(line_count as u32),
3863 );
3864 let mut row_target;
3865 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3866 row_target = target_above;
3867 } else {
3868 row_target = DisplayRow(
3869 edit_end.row().0.max(
3870 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3871 ) + 1,
3872 );
3873 if !visible_row_range.contains(&row_target) {
3874 // Not visible, so fallback on displaying immediately below the cursor.
3875 if let Some(cursor) = newest_selection_head {
3876 row_target = DisplayRow(cursor.row().0 + 1);
3877 } else {
3878 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3879 row_target = DisplayRow(0);
3880 }
3881 }
3882 };
3883
3884 text_bounds.origin
3885 + point(
3886 -scroll_pixel_position.x,
3887 row_target.as_f32() * line_height - scroll_pixel_position.y,
3888 )
3889 };
3890
3891 window.defer_draw(element, origin, 1);
3892
3893 // Do not return an element, since it will already be drawn due to defer_draw.
3894 None
3895 }
3896 }
3897 }
3898
3899 fn layout_mouse_context_menu(
3900 &self,
3901 editor_snapshot: &EditorSnapshot,
3902 visible_range: Range<DisplayRow>,
3903 content_origin: gpui::Point<Pixels>,
3904 window: &mut Window,
3905 cx: &mut App,
3906 ) -> Option<AnyElement> {
3907 let position = self.editor.update(cx, |editor, _cx| {
3908 let visible_start_point = editor.display_to_pixel_point(
3909 DisplayPoint::new(visible_range.start, 0),
3910 editor_snapshot,
3911 window,
3912 )?;
3913 let visible_end_point = editor.display_to_pixel_point(
3914 DisplayPoint::new(visible_range.end, 0),
3915 editor_snapshot,
3916 window,
3917 )?;
3918
3919 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3920 let (source_display_point, position) = match mouse_context_menu.position {
3921 MenuPosition::PinnedToScreen(point) => (None, point),
3922 MenuPosition::PinnedToEditor { source, offset } => {
3923 let source_display_point = source.to_display_point(editor_snapshot);
3924 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3925 let position = content_origin + source_point + offset;
3926 (Some(source_display_point), position)
3927 }
3928 };
3929
3930 let source_included = source_display_point.map_or(true, |source_display_point| {
3931 visible_range
3932 .to_inclusive()
3933 .contains(&source_display_point.row())
3934 });
3935 let position_included =
3936 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3937 if !source_included && !position_included {
3938 None
3939 } else {
3940 Some(position)
3941 }
3942 })?;
3943
3944 let mut element = self.editor.update(cx, |editor, _| {
3945 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3946 let context_menu = mouse_context_menu.context_menu.clone();
3947
3948 Some(
3949 deferred(
3950 anchored()
3951 .position(position)
3952 .child(context_menu)
3953 .anchor(Corner::TopLeft)
3954 .snap_to_window_with_margin(px(8.)),
3955 )
3956 .with_priority(1)
3957 .into_any(),
3958 )
3959 })?;
3960
3961 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3962 Some(element)
3963 }
3964
3965 #[allow(clippy::too_many_arguments)]
3966 fn layout_hover_popovers(
3967 &self,
3968 snapshot: &EditorSnapshot,
3969 hitbox: &Hitbox,
3970 text_hitbox: &Hitbox,
3971 visible_display_row_range: Range<DisplayRow>,
3972 content_origin: gpui::Point<Pixels>,
3973 scroll_pixel_position: gpui::Point<Pixels>,
3974 line_layouts: &[LineWithInvisibles],
3975 line_height: Pixels,
3976 em_width: Pixels,
3977 window: &mut Window,
3978 cx: &mut App,
3979 ) {
3980 struct MeasuredHoverPopover {
3981 element: AnyElement,
3982 size: Size<Pixels>,
3983 horizontal_offset: Pixels,
3984 }
3985
3986 let max_size = size(
3987 (120. * em_width) // Default size
3988 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3989 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3990 (16. * line_height) // Default size
3991 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3992 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3993 );
3994
3995 let hover_popovers = self.editor.update(cx, |editor, cx| {
3996 editor
3997 .hover_state
3998 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3999 });
4000 let Some((position, hover_popovers)) = hover_popovers else {
4001 return;
4002 };
4003
4004 // This is safe because we check on layout whether the required row is available
4005 let hovered_row_layout =
4006 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4007
4008 // Compute Hovered Point
4009 let x =
4010 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4011 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4012 let hovered_point = content_origin + point(x, y);
4013
4014 let mut overall_height = Pixels::ZERO;
4015 let mut measured_hover_popovers = Vec::new();
4016 for mut hover_popover in hover_popovers {
4017 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4018 let horizontal_offset =
4019 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4020
4021 overall_height += HOVER_POPOVER_GAP + size.height;
4022
4023 measured_hover_popovers.push(MeasuredHoverPopover {
4024 element: hover_popover,
4025 size,
4026 horizontal_offset,
4027 });
4028 }
4029 overall_height += HOVER_POPOVER_GAP;
4030
4031 fn draw_occluder(
4032 width: Pixels,
4033 origin: gpui::Point<Pixels>,
4034 window: &mut Window,
4035 cx: &mut App,
4036 ) {
4037 let mut occlusion = div()
4038 .size_full()
4039 .occlude()
4040 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4041 .into_any_element();
4042 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4043 window.defer_draw(occlusion, origin, 2);
4044 }
4045
4046 if hovered_point.y > overall_height {
4047 // There is enough space above. Render popovers above the hovered point
4048 let mut current_y = hovered_point.y;
4049 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4050 let size = popover.size;
4051 let popover_origin = point(
4052 hovered_point.x + popover.horizontal_offset,
4053 current_y - size.height,
4054 );
4055
4056 window.defer_draw(popover.element, popover_origin, 2);
4057 if position != itertools::Position::Last {
4058 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4059 draw_occluder(size.width, origin, window, cx);
4060 }
4061
4062 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4063 }
4064 } else {
4065 // There is not enough space above. Render popovers below the hovered point
4066 let mut current_y = hovered_point.y + line_height;
4067 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4068 let size = popover.size;
4069 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4070
4071 window.defer_draw(popover.element, popover_origin, 2);
4072 if position != itertools::Position::Last {
4073 let origin = point(popover_origin.x, popover_origin.y + size.height);
4074 draw_occluder(size.width, origin, window, cx);
4075 }
4076
4077 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4078 }
4079 }
4080 }
4081
4082 #[allow(clippy::too_many_arguments)]
4083 fn layout_diff_hunk_controls(
4084 &self,
4085 row_range: Range<DisplayRow>,
4086 row_infos: &[RowInfo],
4087 text_hitbox: &Hitbox,
4088 position_map: &PositionMap,
4089 newest_cursor_position: Option<DisplayPoint>,
4090 line_height: Pixels,
4091 scroll_pixel_position: gpui::Point<Pixels>,
4092 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4093 editor: Entity<Editor>,
4094 window: &mut Window,
4095 cx: &mut App,
4096 ) -> Vec<AnyElement> {
4097 let point_for_position = position_map.point_for_position(window.mouse_position());
4098
4099 let mut controls = vec![];
4100
4101 let active_positions = [
4102 Some(point_for_position.previous_valid),
4103 newest_cursor_position,
4104 ];
4105
4106 for (hunk, _) in display_hunks {
4107 if let DisplayDiffHunk::Unfolded {
4108 display_row_range,
4109 multi_buffer_range,
4110 status,
4111 ..
4112 } = &hunk
4113 {
4114 if display_row_range.start < row_range.start
4115 || display_row_range.start >= row_range.end
4116 {
4117 continue;
4118 }
4119 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4120 if row_infos[row_ix].diff_status.is_none() {
4121 continue;
4122 }
4123 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4124 && *status != DiffHunkStatus::Added
4125 {
4126 continue;
4127 }
4128 if active_positions
4129 .iter()
4130 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4131 {
4132 let y = display_row_range.start.as_f32() * line_height
4133 + text_hitbox.bounds.top()
4134 - scroll_pixel_position.y;
4135 let x = text_hitbox.bounds.right() - px(100.);
4136
4137 let mut element = diff_hunk_controls(
4138 display_row_range.start.0,
4139 multi_buffer_range.clone(),
4140 line_height,
4141 &editor,
4142 cx,
4143 );
4144 element.prepaint_as_root(
4145 gpui::Point::new(x, y),
4146 size(px(100.0), line_height).into(),
4147 window,
4148 cx,
4149 );
4150 controls.push(element);
4151 }
4152 }
4153 }
4154
4155 controls
4156 }
4157
4158 #[allow(clippy::too_many_arguments)]
4159 fn layout_signature_help(
4160 &self,
4161 hitbox: &Hitbox,
4162 content_origin: gpui::Point<Pixels>,
4163 scroll_pixel_position: gpui::Point<Pixels>,
4164 newest_selection_head: Option<DisplayPoint>,
4165 start_row: DisplayRow,
4166 line_layouts: &[LineWithInvisibles],
4167 line_height: Pixels,
4168 em_width: Pixels,
4169 window: &mut Window,
4170 cx: &mut App,
4171 ) {
4172 if !self.editor.focus_handle(cx).is_focused(window) {
4173 return;
4174 }
4175 let Some(newest_selection_head) = newest_selection_head else {
4176 return;
4177 };
4178 let selection_row = newest_selection_head.row();
4179 if selection_row < start_row {
4180 return;
4181 }
4182 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4183 else {
4184 return;
4185 };
4186
4187 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4188 - scroll_pixel_position.x
4189 + content_origin.x;
4190 let start_y =
4191 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4192
4193 let max_size = size(
4194 (120. * em_width) // Default size
4195 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4196 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4197 (16. * line_height) // Default size
4198 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4199 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4200 );
4201
4202 let maybe_element = self.editor.update(cx, |editor, cx| {
4203 if let Some(popover) = editor.signature_help_state.popover_mut() {
4204 let element = popover.render(
4205 &self.style,
4206 max_size,
4207 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4208 cx,
4209 );
4210 Some(element)
4211 } else {
4212 None
4213 }
4214 });
4215 if let Some(mut element) = maybe_element {
4216 let window_size = window.viewport_size();
4217 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4218 let mut point = point(start_x, start_y - size.height);
4219
4220 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4221 if point.x + size.width >= window_size.width {
4222 point.x = window_size.width - size.width;
4223 }
4224
4225 window.defer_draw(element, point, 1)
4226 }
4227 }
4228
4229 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4230 window.paint_layer(layout.hitbox.bounds, |window| {
4231 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4232 let gutter_bg = cx.theme().colors().editor_gutter_background;
4233 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4234 window.paint_quad(fill(
4235 layout.position_map.text_hitbox.bounds,
4236 self.style.background,
4237 ));
4238
4239 if let EditorMode::Full = layout.mode {
4240 let mut active_rows = layout.active_rows.iter().peekable();
4241 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4242 let mut end_row = start_row.0;
4243 while active_rows
4244 .peek()
4245 .map_or(false, |(active_row, has_selection)| {
4246 active_row.0 == end_row + 1
4247 && *has_selection == contains_non_empty_selection
4248 })
4249 {
4250 active_rows.next().unwrap();
4251 end_row += 1;
4252 }
4253
4254 if !contains_non_empty_selection {
4255 let highlight_h_range =
4256 match layout.position_map.snapshot.current_line_highlight {
4257 CurrentLineHighlight::Gutter => Some(Range {
4258 start: layout.hitbox.left(),
4259 end: layout.gutter_hitbox.right(),
4260 }),
4261 CurrentLineHighlight::Line => Some(Range {
4262 start: layout.position_map.text_hitbox.bounds.left(),
4263 end: layout.position_map.text_hitbox.bounds.right(),
4264 }),
4265 CurrentLineHighlight::All => Some(Range {
4266 start: layout.hitbox.left(),
4267 end: layout.hitbox.right(),
4268 }),
4269 CurrentLineHighlight::None => None,
4270 };
4271 if let Some(range) = highlight_h_range {
4272 let active_line_bg = cx.theme().colors().editor_active_line_background;
4273 let bounds = Bounds {
4274 origin: point(
4275 range.start,
4276 layout.hitbox.origin.y
4277 + (start_row.as_f32() - scroll_top)
4278 * layout.position_map.line_height,
4279 ),
4280 size: size(
4281 range.end - range.start,
4282 layout.position_map.line_height
4283 * (end_row - start_row.0 + 1) as f32,
4284 ),
4285 };
4286 window.paint_quad(fill(bounds, active_line_bg));
4287 }
4288 }
4289 }
4290
4291 let mut paint_highlight =
4292 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4293 let origin = point(
4294 layout.hitbox.origin.x,
4295 layout.hitbox.origin.y
4296 + (highlight_row_start.as_f32() - scroll_top)
4297 * layout.position_map.line_height,
4298 );
4299 let size = size(
4300 layout.hitbox.size.width,
4301 layout.position_map.line_height
4302 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4303 );
4304 window.paint_quad(fill(Bounds { origin, size }, color));
4305 };
4306
4307 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4308 for (&new_row, &new_color) in &layout.highlighted_rows {
4309 match &mut current_paint {
4310 Some((current_color, current_range)) => {
4311 let current_color = *current_color;
4312 let new_range_started = current_color != new_color
4313 || current_range.end.next_row() != new_row;
4314 if new_range_started {
4315 paint_highlight(
4316 current_range.start,
4317 current_range.end,
4318 current_color,
4319 );
4320 current_paint = Some((new_color, new_row..new_row));
4321 continue;
4322 } else {
4323 current_range.end = current_range.end.next_row();
4324 }
4325 }
4326 None => current_paint = Some((new_color, new_row..new_row)),
4327 };
4328 }
4329 if let Some((color, range)) = current_paint {
4330 paint_highlight(range.start, range.end, color);
4331 }
4332
4333 let scroll_left =
4334 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4335
4336 for (wrap_position, active) in layout.wrap_guides.iter() {
4337 let x = (layout.position_map.text_hitbox.origin.x
4338 + *wrap_position
4339 + layout.position_map.em_width / 2.)
4340 - scroll_left;
4341
4342 let show_scrollbars = {
4343 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4344
4345 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4346 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4347 };
4348
4349 if x < layout.position_map.text_hitbox.origin.x
4350 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4351 {
4352 continue;
4353 }
4354
4355 let color = if *active {
4356 cx.theme().colors().editor_active_wrap_guide
4357 } else {
4358 cx.theme().colors().editor_wrap_guide
4359 };
4360 window.paint_quad(fill(
4361 Bounds {
4362 origin: point(x, layout.position_map.text_hitbox.origin.y),
4363 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4364 },
4365 color,
4366 ));
4367 }
4368 }
4369 })
4370 }
4371
4372 fn paint_indent_guides(
4373 &mut self,
4374 layout: &mut EditorLayout,
4375 window: &mut Window,
4376 cx: &mut App,
4377 ) {
4378 let Some(indent_guides) = &layout.indent_guides else {
4379 return;
4380 };
4381
4382 let faded_color = |color: Hsla, alpha: f32| {
4383 let mut faded = color;
4384 faded.a = alpha;
4385 faded
4386 };
4387
4388 for indent_guide in indent_guides {
4389 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4390 let settings = indent_guide.settings;
4391
4392 // TODO fixed for now, expose them through themes later
4393 const INDENT_AWARE_ALPHA: f32 = 0.2;
4394 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4395 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4396 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4397
4398 let line_color = match (settings.coloring, indent_guide.active) {
4399 (IndentGuideColoring::Disabled, _) => None,
4400 (IndentGuideColoring::Fixed, false) => {
4401 Some(cx.theme().colors().editor_indent_guide)
4402 }
4403 (IndentGuideColoring::Fixed, true) => {
4404 Some(cx.theme().colors().editor_indent_guide_active)
4405 }
4406 (IndentGuideColoring::IndentAware, false) => {
4407 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4408 }
4409 (IndentGuideColoring::IndentAware, true) => {
4410 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4411 }
4412 };
4413
4414 let background_color = match (settings.background_coloring, indent_guide.active) {
4415 (IndentGuideBackgroundColoring::Disabled, _) => None,
4416 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4417 indent_accent_colors,
4418 INDENT_AWARE_BACKGROUND_ALPHA,
4419 )),
4420 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4421 indent_accent_colors,
4422 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4423 )),
4424 };
4425
4426 let requested_line_width = if indent_guide.active {
4427 settings.active_line_width
4428 } else {
4429 settings.line_width
4430 }
4431 .clamp(1, 10);
4432 let mut line_indicator_width = 0.;
4433 if let Some(color) = line_color {
4434 window.paint_quad(fill(
4435 Bounds {
4436 origin: indent_guide.origin,
4437 size: size(px(requested_line_width as f32), indent_guide.length),
4438 },
4439 color,
4440 ));
4441 line_indicator_width = requested_line_width as f32;
4442 }
4443
4444 if let Some(color) = background_color {
4445 let width = indent_guide.single_indent_width - px(line_indicator_width);
4446 window.paint_quad(fill(
4447 Bounds {
4448 origin: point(
4449 indent_guide.origin.x + px(line_indicator_width),
4450 indent_guide.origin.y,
4451 ),
4452 size: size(width, indent_guide.length),
4453 },
4454 color,
4455 ));
4456 }
4457 }
4458 }
4459
4460 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4461 let is_singleton = self.editor.read(cx).is_singleton(cx);
4462
4463 let line_height = layout.position_map.line_height;
4464 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4465
4466 for LineNumberLayout {
4467 shaped_line,
4468 hitbox,
4469 display_row,
4470 } in layout.line_numbers.values()
4471 {
4472 let Some(hitbox) = hitbox else {
4473 continue;
4474 };
4475
4476 let is_active = layout.active_rows.contains_key(&display_row);
4477
4478 let color = if is_active {
4479 cx.theme().colors().editor_active_line_number
4480 } else if !is_singleton && hitbox.is_hovered(window) {
4481 cx.theme().colors().editor_hover_line_number
4482 } else {
4483 cx.theme().colors().editor_line_number
4484 };
4485
4486 let Some(line) = self
4487 .shape_line_number(shaped_line.text.clone(), color, window)
4488 .log_err()
4489 else {
4490 continue;
4491 };
4492 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4493 continue;
4494 };
4495 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4496 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4497 if is_singleton {
4498 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4499 } else {
4500 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4501 }
4502 }
4503 }
4504
4505 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4506 if layout.display_hunks.is_empty() {
4507 return;
4508 }
4509
4510 let line_height = layout.position_map.line_height;
4511 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4512 for (hunk, hitbox) in &layout.display_hunks {
4513 let hunk_to_paint = match hunk {
4514 DisplayDiffHunk::Folded { .. } => {
4515 let hunk_bounds = Self::diff_hunk_bounds(
4516 &layout.position_map.snapshot,
4517 line_height,
4518 layout.gutter_hitbox.bounds,
4519 hunk,
4520 );
4521 Some((
4522 hunk_bounds,
4523 cx.theme().status().modified,
4524 Corners::all(px(0.)),
4525 ))
4526 }
4527 DisplayDiffHunk::Unfolded {
4528 status,
4529 display_row_range,
4530 ..
4531 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4532 DiffHunkStatus::Added => (
4533 hunk_hitbox.bounds,
4534 cx.theme().status().created,
4535 Corners::all(px(0.)),
4536 ),
4537 DiffHunkStatus::Modified => (
4538 hunk_hitbox.bounds,
4539 cx.theme().status().modified,
4540 Corners::all(px(0.)),
4541 ),
4542 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4543 hunk_hitbox.bounds,
4544 cx.theme().status().deleted,
4545 Corners::all(px(0.)),
4546 ),
4547 DiffHunkStatus::Removed => (
4548 Bounds::new(
4549 point(
4550 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4551 hunk_hitbox.origin.y,
4552 ),
4553 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4554 ),
4555 cx.theme().status().deleted,
4556 Corners::all(1. * line_height),
4557 ),
4558 }),
4559 };
4560
4561 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4562 window.paint_quad(quad(
4563 hunk_bounds,
4564 corner_radii,
4565 background_color,
4566 Edges::default(),
4567 transparent_black(),
4568 ));
4569 }
4570 }
4571 });
4572 }
4573
4574 fn diff_hunk_bounds(
4575 snapshot: &EditorSnapshot,
4576 line_height: Pixels,
4577 gutter_bounds: Bounds<Pixels>,
4578 hunk: &DisplayDiffHunk,
4579 ) -> Bounds<Pixels> {
4580 let scroll_position = snapshot.scroll_position();
4581 let scroll_top = scroll_position.y * line_height;
4582 let gutter_strip_width = (0.275 * line_height).floor();
4583
4584 match hunk {
4585 DisplayDiffHunk::Folded { display_row, .. } => {
4586 let start_y = display_row.as_f32() * line_height - scroll_top;
4587 let end_y = start_y + line_height;
4588 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4589 let highlight_size = size(gutter_strip_width, end_y - start_y);
4590 Bounds::new(highlight_origin, highlight_size)
4591 }
4592 DisplayDiffHunk::Unfolded {
4593 display_row_range,
4594 status,
4595 ..
4596 } => {
4597 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4598 let row = display_row_range.start;
4599
4600 let offset = line_height / 2.;
4601 let start_y = row.as_f32() * line_height - offset - scroll_top;
4602 let end_y = start_y + line_height;
4603
4604 let width = (0.35 * line_height).floor();
4605 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4606 let highlight_size = size(width, end_y - start_y);
4607 Bounds::new(highlight_origin, highlight_size)
4608 } else {
4609 let start_row = display_row_range.start;
4610 let end_row = display_row_range.end;
4611 // If we're in a multibuffer, row range span might include an
4612 // excerpt header, so if we were to draw the marker straight away,
4613 // the hunk might include the rows of that header.
4614 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4615 // Instead, we simply check whether the range we're dealing with includes
4616 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4617 let end_row_in_current_excerpt = snapshot
4618 .blocks_in_range(start_row..end_row)
4619 .find_map(|(start_row, block)| {
4620 if matches!(block, Block::ExcerptBoundary { .. }) {
4621 Some(start_row)
4622 } else {
4623 None
4624 }
4625 })
4626 .unwrap_or(end_row);
4627
4628 let start_y = start_row.as_f32() * line_height - scroll_top;
4629 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4630
4631 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4632 let highlight_size = size(gutter_strip_width, end_y - start_y);
4633 Bounds::new(highlight_origin, highlight_size)
4634 }
4635 }
4636 }
4637 }
4638
4639 fn paint_gutter_indicators(
4640 &self,
4641 layout: &mut EditorLayout,
4642 window: &mut Window,
4643 cx: &mut App,
4644 ) {
4645 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4646 window.with_element_namespace("crease_toggles", |window| {
4647 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4648 crease_toggle.paint(window, cx);
4649 }
4650 });
4651
4652 for test_indicator in layout.test_indicators.iter_mut() {
4653 test_indicator.paint(window, cx);
4654 }
4655
4656 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4657 indicator.paint(window, cx);
4658 }
4659 });
4660 }
4661
4662 fn paint_gutter_highlights(
4663 &self,
4664 layout: &mut EditorLayout,
4665 window: &mut Window,
4666 cx: &mut App,
4667 ) {
4668 for (_, hunk_hitbox) in &layout.display_hunks {
4669 if let Some(hunk_hitbox) = hunk_hitbox {
4670 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4671 }
4672 }
4673
4674 let show_git_gutter = layout
4675 .position_map
4676 .snapshot
4677 .show_git_diff_gutter
4678 .unwrap_or_else(|| {
4679 matches!(
4680 ProjectSettings::get_global(cx).git.git_gutter,
4681 Some(GitGutterSetting::TrackedFiles)
4682 )
4683 });
4684 if show_git_gutter {
4685 Self::paint_diff_hunks(layout, window, cx)
4686 }
4687
4688 let highlight_width = 0.275 * layout.position_map.line_height;
4689 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4690 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4691 for (range, color) in &layout.highlighted_gutter_ranges {
4692 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4693 layout.visible_display_row_range.start - DisplayRow(1)
4694 } else {
4695 range.start.row()
4696 };
4697 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4698 layout.visible_display_row_range.end + DisplayRow(1)
4699 } else {
4700 range.end.row()
4701 };
4702
4703 let start_y = layout.gutter_hitbox.top()
4704 + start_row.0 as f32 * layout.position_map.line_height
4705 - layout.position_map.scroll_pixel_position.y;
4706 let end_y = layout.gutter_hitbox.top()
4707 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4708 - layout.position_map.scroll_pixel_position.y;
4709 let bounds = Bounds::from_corners(
4710 point(layout.gutter_hitbox.left(), start_y),
4711 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4712 );
4713 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4714 }
4715 });
4716 }
4717
4718 fn paint_blamed_display_rows(
4719 &self,
4720 layout: &mut EditorLayout,
4721 window: &mut Window,
4722 cx: &mut App,
4723 ) {
4724 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4725 return;
4726 };
4727
4728 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4729 for mut blame_element in blamed_display_rows.into_iter() {
4730 blame_element.paint(window, cx);
4731 }
4732 })
4733 }
4734
4735 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4736 window.with_content_mask(
4737 Some(ContentMask {
4738 bounds: layout.position_map.text_hitbox.bounds,
4739 }),
4740 |window| {
4741 let cursor_style = if self
4742 .editor
4743 .read(cx)
4744 .hovered_link_state
4745 .as_ref()
4746 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4747 {
4748 CursorStyle::PointingHand
4749 } else {
4750 CursorStyle::IBeam
4751 };
4752 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4753
4754 let invisible_display_ranges = self.paint_highlights(layout, window);
4755 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4756 self.paint_redactions(layout, window);
4757 self.paint_cursors(layout, window, cx);
4758 self.paint_inline_blame(layout, window, cx);
4759 self.paint_diff_hunk_controls(layout, window, cx);
4760 window.with_element_namespace("crease_trailers", |window| {
4761 for trailer in layout.crease_trailers.iter_mut().flatten() {
4762 trailer.element.paint(window, cx);
4763 }
4764 });
4765 },
4766 )
4767 }
4768
4769 fn paint_highlights(
4770 &mut self,
4771 layout: &mut EditorLayout,
4772 window: &mut Window,
4773 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4774 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4775 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4776 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4777 for (range, color) in &layout.highlighted_ranges {
4778 self.paint_highlighted_range(
4779 range.clone(),
4780 *color,
4781 Pixels::ZERO,
4782 line_end_overshoot,
4783 layout,
4784 window,
4785 );
4786 }
4787
4788 let corner_radius = 0.15 * layout.position_map.line_height;
4789
4790 for (player_color, selections) in &layout.selections {
4791 for selection in selections.iter() {
4792 self.paint_highlighted_range(
4793 selection.range.clone(),
4794 player_color.selection,
4795 corner_radius,
4796 corner_radius * 2.,
4797 layout,
4798 window,
4799 );
4800
4801 if selection.is_local && !selection.range.is_empty() {
4802 invisible_display_ranges.push(selection.range.clone());
4803 }
4804 }
4805 }
4806 invisible_display_ranges
4807 })
4808 }
4809
4810 fn paint_lines(
4811 &mut self,
4812 invisible_display_ranges: &[Range<DisplayPoint>],
4813 layout: &mut EditorLayout,
4814 window: &mut Window,
4815 cx: &mut App,
4816 ) {
4817 let whitespace_setting = self
4818 .editor
4819 .read(cx)
4820 .buffer
4821 .read(cx)
4822 .settings_at(0, cx)
4823 .show_whitespaces;
4824
4825 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4826 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4827 line_with_invisibles.draw(
4828 layout,
4829 row,
4830 layout.content_origin,
4831 whitespace_setting,
4832 invisible_display_ranges,
4833 window,
4834 cx,
4835 )
4836 }
4837
4838 for line_element in &mut layout.line_elements {
4839 line_element.paint(window, cx);
4840 }
4841 }
4842
4843 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4844 if layout.redacted_ranges.is_empty() {
4845 return;
4846 }
4847
4848 let line_end_overshoot = layout.line_end_overshoot();
4849
4850 // A softer than perfect black
4851 let redaction_color = gpui::rgb(0x0e1111);
4852
4853 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4854 for range in layout.redacted_ranges.iter() {
4855 self.paint_highlighted_range(
4856 range.clone(),
4857 redaction_color.into(),
4858 Pixels::ZERO,
4859 line_end_overshoot,
4860 layout,
4861 window,
4862 );
4863 }
4864 });
4865 }
4866
4867 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4868 for cursor in &mut layout.visible_cursors {
4869 cursor.paint(layout.content_origin, window, cx);
4870 }
4871 }
4872
4873 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4874 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4875
4876 if let Some(scrollbar_layout) = scrollbar_x {
4877 let hitbox = scrollbar_layout.hitbox.clone();
4878 let text_unit_size = scrollbar_layout.text_unit_size;
4879 let visible_range = scrollbar_layout.visible_range.clone();
4880 let thumb_bounds = scrollbar_layout.thumb_bounds();
4881
4882 if scrollbar_layout.visible {
4883 window.paint_layer(hitbox.bounds, |window| {
4884 window.paint_quad(quad(
4885 hitbox.bounds,
4886 Corners::default(),
4887 cx.theme().colors().scrollbar_track_background,
4888 Edges {
4889 top: Pixels::ZERO,
4890 right: Pixels::ZERO,
4891 bottom: Pixels::ZERO,
4892 left: Pixels::ZERO,
4893 },
4894 cx.theme().colors().scrollbar_track_border,
4895 ));
4896
4897 window.paint_quad(quad(
4898 thumb_bounds,
4899 Corners::default(),
4900 cx.theme().colors().scrollbar_thumb_background,
4901 Edges {
4902 top: Pixels::ZERO,
4903 right: Pixels::ZERO,
4904 bottom: Pixels::ZERO,
4905 left: ScrollbarLayout::BORDER_WIDTH,
4906 },
4907 cx.theme().colors().scrollbar_thumb_border,
4908 ));
4909 })
4910 }
4911
4912 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4913
4914 window.on_mouse_event({
4915 let editor = self.editor.clone();
4916
4917 // there may be a way to avoid this clone
4918 let hitbox = hitbox.clone();
4919
4920 let mut mouse_position = window.mouse_position();
4921 move |event: &MouseMoveEvent, phase, window, cx| {
4922 if phase == DispatchPhase::Capture {
4923 return;
4924 }
4925
4926 editor.update(cx, |editor, cx| {
4927 if event.pressed_button == Some(MouseButton::Left)
4928 && editor
4929 .scroll_manager
4930 .is_dragging_scrollbar(Axis::Horizontal)
4931 {
4932 let x = mouse_position.x;
4933 let new_x = event.position.x;
4934 if (hitbox.left()..hitbox.right()).contains(&x) {
4935 let mut position = editor.scroll_position(cx);
4936
4937 position.x += (new_x - x) / text_unit_size;
4938 if position.x < 0.0 {
4939 position.x = 0.0;
4940 }
4941 editor.set_scroll_position(position, window, cx);
4942 }
4943
4944 cx.stop_propagation();
4945 } else {
4946 editor.scroll_manager.set_is_dragging_scrollbar(
4947 Axis::Horizontal,
4948 false,
4949 cx,
4950 );
4951
4952 if hitbox.is_hovered(window) {
4953 editor.scroll_manager.show_scrollbar(window, cx);
4954 }
4955 }
4956 mouse_position = event.position;
4957 })
4958 }
4959 });
4960
4961 if self
4962 .editor
4963 .read(cx)
4964 .scroll_manager
4965 .is_dragging_scrollbar(Axis::Horizontal)
4966 {
4967 window.on_mouse_event({
4968 let editor = self.editor.clone();
4969 move |_: &MouseUpEvent, phase, _, cx| {
4970 if phase == DispatchPhase::Capture {
4971 return;
4972 }
4973
4974 editor.update(cx, |editor, cx| {
4975 editor.scroll_manager.set_is_dragging_scrollbar(
4976 Axis::Horizontal,
4977 false,
4978 cx,
4979 );
4980 cx.stop_propagation();
4981 });
4982 }
4983 });
4984 } else {
4985 window.on_mouse_event({
4986 let editor = self.editor.clone();
4987
4988 move |event: &MouseDownEvent, phase, window, cx| {
4989 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4990 return;
4991 }
4992
4993 editor.update(cx, |editor, cx| {
4994 editor.scroll_manager.set_is_dragging_scrollbar(
4995 Axis::Horizontal,
4996 true,
4997 cx,
4998 );
4999
5000 let x = event.position.x;
5001
5002 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5003 let center_row =
5004 ((x - hitbox.left()) / text_unit_size).round() as u32;
5005 let top_row = center_row.saturating_sub(
5006 (visible_range.end - visible_range.start) as u32 / 2,
5007 );
5008
5009 let mut position = editor.scroll_position(cx);
5010 position.x = top_row as f32;
5011
5012 editor.set_scroll_position(position, window, cx);
5013 } else {
5014 editor.scroll_manager.show_scrollbar(window, cx);
5015 }
5016
5017 cx.stop_propagation();
5018 });
5019 }
5020 });
5021 }
5022 }
5023
5024 if let Some(scrollbar_layout) = scrollbar_y {
5025 let hitbox = scrollbar_layout.hitbox.clone();
5026 let text_unit_size = scrollbar_layout.text_unit_size;
5027 let visible_range = scrollbar_layout.visible_range.clone();
5028 let thumb_bounds = scrollbar_layout.thumb_bounds();
5029
5030 if scrollbar_layout.visible {
5031 window.paint_layer(hitbox.bounds, |window| {
5032 window.paint_quad(quad(
5033 hitbox.bounds,
5034 Corners::default(),
5035 cx.theme().colors().scrollbar_track_background,
5036 Edges {
5037 top: Pixels::ZERO,
5038 right: Pixels::ZERO,
5039 bottom: Pixels::ZERO,
5040 left: ScrollbarLayout::BORDER_WIDTH,
5041 },
5042 cx.theme().colors().scrollbar_track_border,
5043 ));
5044
5045 let fast_markers =
5046 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5047 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5048 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5049
5050 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5051 for marker in markers.iter().chain(&fast_markers) {
5052 let mut marker = marker.clone();
5053 marker.bounds.origin += hitbox.origin;
5054 window.paint_quad(marker);
5055 }
5056
5057 window.paint_quad(quad(
5058 thumb_bounds,
5059 Corners::default(),
5060 cx.theme().colors().scrollbar_thumb_background,
5061 Edges {
5062 top: Pixels::ZERO,
5063 right: Pixels::ZERO,
5064 bottom: Pixels::ZERO,
5065 left: ScrollbarLayout::BORDER_WIDTH,
5066 },
5067 cx.theme().colors().scrollbar_thumb_border,
5068 ));
5069 });
5070 }
5071
5072 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5073
5074 window.on_mouse_event({
5075 let editor = self.editor.clone();
5076
5077 let hitbox = hitbox.clone();
5078
5079 let mut mouse_position = window.mouse_position();
5080 move |event: &MouseMoveEvent, phase, window, cx| {
5081 if phase == DispatchPhase::Capture {
5082 return;
5083 }
5084
5085 editor.update(cx, |editor, cx| {
5086 if event.pressed_button == Some(MouseButton::Left)
5087 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5088 {
5089 let y = mouse_position.y;
5090 let new_y = event.position.y;
5091 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5092 let mut position = editor.scroll_position(cx);
5093 position.y += (new_y - y) / text_unit_size;
5094 if position.y < 0.0 {
5095 position.y = 0.0;
5096 }
5097 editor.set_scroll_position(position, window, cx);
5098 }
5099 } else {
5100 editor.scroll_manager.set_is_dragging_scrollbar(
5101 Axis::Vertical,
5102 false,
5103 cx,
5104 );
5105
5106 if hitbox.is_hovered(window) {
5107 editor.scroll_manager.show_scrollbar(window, cx);
5108 }
5109 }
5110 mouse_position = event.position;
5111 })
5112 }
5113 });
5114
5115 if self
5116 .editor
5117 .read(cx)
5118 .scroll_manager
5119 .is_dragging_scrollbar(Axis::Vertical)
5120 {
5121 window.on_mouse_event({
5122 let editor = self.editor.clone();
5123 move |_: &MouseUpEvent, phase, _, cx| {
5124 if phase == DispatchPhase::Capture {
5125 return;
5126 }
5127
5128 editor.update(cx, |editor, cx| {
5129 editor.scroll_manager.set_is_dragging_scrollbar(
5130 Axis::Vertical,
5131 false,
5132 cx,
5133 );
5134 cx.stop_propagation();
5135 });
5136 }
5137 });
5138 } else {
5139 window.on_mouse_event({
5140 let editor = self.editor.clone();
5141
5142 move |event: &MouseDownEvent, phase, window, cx| {
5143 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5144 return;
5145 }
5146
5147 editor.update(cx, |editor, cx| {
5148 editor.scroll_manager.set_is_dragging_scrollbar(
5149 Axis::Vertical,
5150 true,
5151 cx,
5152 );
5153
5154 let y = event.position.y;
5155 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5156 let center_row =
5157 ((y - hitbox.top()) / text_unit_size).round() as u32;
5158 let top_row = center_row.saturating_sub(
5159 (visible_range.end - visible_range.start) as u32 / 2,
5160 );
5161 let mut position = editor.scroll_position(cx);
5162 position.y = top_row as f32;
5163 editor.set_scroll_position(position, window, cx);
5164 } else {
5165 editor.scroll_manager.show_scrollbar(window, cx);
5166 }
5167
5168 cx.stop_propagation();
5169 });
5170 }
5171 });
5172 }
5173 }
5174 }
5175
5176 fn collect_fast_scrollbar_markers(
5177 &self,
5178 layout: &EditorLayout,
5179 scrollbar_layout: &ScrollbarLayout,
5180 cx: &mut App,
5181 ) -> Vec<PaintQuad> {
5182 const LIMIT: usize = 100;
5183 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5184 return vec![];
5185 }
5186 let cursor_ranges = layout
5187 .cursors
5188 .iter()
5189 .map(|(point, color)| ColoredRange {
5190 start: point.row(),
5191 end: point.row(),
5192 color: *color,
5193 })
5194 .collect_vec();
5195 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5196 }
5197
5198 fn refresh_slow_scrollbar_markers(
5199 &self,
5200 layout: &EditorLayout,
5201 scrollbar_layout: &ScrollbarLayout,
5202 window: &mut Window,
5203 cx: &mut App,
5204 ) {
5205 self.editor.update(cx, |editor, cx| {
5206 if !editor.is_singleton(cx)
5207 || !editor
5208 .scrollbar_marker_state
5209 .should_refresh(scrollbar_layout.hitbox.size)
5210 {
5211 return;
5212 }
5213
5214 let scrollbar_layout = scrollbar_layout.clone();
5215 let background_highlights = editor.background_highlights.clone();
5216 let snapshot = layout.position_map.snapshot.clone();
5217 let theme = cx.theme().clone();
5218 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5219
5220 editor.scrollbar_marker_state.dirty = false;
5221 editor.scrollbar_marker_state.pending_refresh =
5222 Some(cx.spawn_in(window, |editor, mut cx| async move {
5223 let scrollbar_size = scrollbar_layout.hitbox.size;
5224 let scrollbar_markers = cx
5225 .background_executor()
5226 .spawn(async move {
5227 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5228 let mut marker_quads = Vec::new();
5229 if scrollbar_settings.git_diff {
5230 let marker_row_ranges =
5231 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5232 let start_display_row =
5233 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5234 .to_display_point(&snapshot.display_snapshot)
5235 .row();
5236 let mut end_display_row =
5237 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5238 .to_display_point(&snapshot.display_snapshot)
5239 .row();
5240 if end_display_row != start_display_row {
5241 end_display_row.0 -= 1;
5242 }
5243 let color = match &hunk.status() {
5244 DiffHunkStatus::Added => theme.status().created,
5245 DiffHunkStatus::Modified => theme.status().modified,
5246 DiffHunkStatus::Removed => theme.status().deleted,
5247 };
5248 ColoredRange {
5249 start: start_display_row,
5250 end: end_display_row,
5251 color,
5252 }
5253 });
5254
5255 marker_quads.extend(
5256 scrollbar_layout
5257 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5258 );
5259 }
5260
5261 for (background_highlight_id, (_, background_ranges)) in
5262 background_highlights.iter()
5263 {
5264 let is_search_highlights = *background_highlight_id
5265 == TypeId::of::<BufferSearchHighlights>();
5266 let is_symbol_occurrences = *background_highlight_id
5267 == TypeId::of::<DocumentHighlightRead>()
5268 || *background_highlight_id
5269 == TypeId::of::<DocumentHighlightWrite>();
5270 if (is_search_highlights && scrollbar_settings.search_results)
5271 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5272 {
5273 let mut color = theme.status().info;
5274 if is_symbol_occurrences {
5275 color.fade_out(0.5);
5276 }
5277 let marker_row_ranges = background_ranges.iter().map(|range| {
5278 let display_start = range
5279 .start
5280 .to_display_point(&snapshot.display_snapshot);
5281 let display_end =
5282 range.end.to_display_point(&snapshot.display_snapshot);
5283 ColoredRange {
5284 start: display_start.row(),
5285 end: display_end.row(),
5286 color,
5287 }
5288 });
5289 marker_quads.extend(
5290 scrollbar_layout
5291 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5292 );
5293 }
5294 }
5295
5296 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5297 let diagnostics = snapshot
5298 .buffer_snapshot
5299 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
5300 // Don't show diagnostics the user doesn't care about
5301 .filter(|diagnostic| {
5302 match (
5303 scrollbar_settings.diagnostics,
5304 diagnostic.diagnostic.severity,
5305 ) {
5306 (ScrollbarDiagnostics::All, _) => true,
5307 (
5308 ScrollbarDiagnostics::Error,
5309 DiagnosticSeverity::ERROR,
5310 ) => true,
5311 (
5312 ScrollbarDiagnostics::Warning,
5313 DiagnosticSeverity::ERROR
5314 | DiagnosticSeverity::WARNING,
5315 ) => true,
5316 (
5317 ScrollbarDiagnostics::Information,
5318 DiagnosticSeverity::ERROR
5319 | DiagnosticSeverity::WARNING
5320 | DiagnosticSeverity::INFORMATION,
5321 ) => true,
5322 (_, _) => false,
5323 }
5324 })
5325 // We want to sort by severity, in order to paint the most severe diagnostics last.
5326 .sorted_by_key(|diagnostic| {
5327 std::cmp::Reverse(diagnostic.diagnostic.severity)
5328 });
5329
5330 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5331 let start_display = diagnostic
5332 .range
5333 .start
5334 .to_display_point(&snapshot.display_snapshot);
5335 let end_display = diagnostic
5336 .range
5337 .end
5338 .to_display_point(&snapshot.display_snapshot);
5339 let color = match diagnostic.diagnostic.severity {
5340 DiagnosticSeverity::ERROR => theme.status().error,
5341 DiagnosticSeverity::WARNING => theme.status().warning,
5342 DiagnosticSeverity::INFORMATION => theme.status().info,
5343 _ => theme.status().hint,
5344 };
5345 ColoredRange {
5346 start: start_display.row(),
5347 end: end_display.row(),
5348 color,
5349 }
5350 });
5351 marker_quads.extend(
5352 scrollbar_layout
5353 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5354 );
5355 }
5356
5357 Arc::from(marker_quads)
5358 })
5359 .await;
5360
5361 editor.update(&mut cx, |editor, cx| {
5362 editor.scrollbar_marker_state.markers = scrollbar_markers;
5363 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5364 editor.scrollbar_marker_state.pending_refresh = None;
5365 cx.notify();
5366 })?;
5367
5368 Ok(())
5369 }));
5370 });
5371 }
5372
5373 #[allow(clippy::too_many_arguments)]
5374 fn paint_highlighted_range(
5375 &self,
5376 range: Range<DisplayPoint>,
5377 color: Hsla,
5378 corner_radius: Pixels,
5379 line_end_overshoot: Pixels,
5380 layout: &EditorLayout,
5381 window: &mut Window,
5382 ) {
5383 let start_row = layout.visible_display_row_range.start;
5384 let end_row = layout.visible_display_row_range.end;
5385 if range.start != range.end {
5386 let row_range = if range.end.column() == 0 {
5387 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5388 } else {
5389 cmp::max(range.start.row(), start_row)
5390 ..cmp::min(range.end.row().next_row(), end_row)
5391 };
5392
5393 let highlighted_range = HighlightedRange {
5394 color,
5395 line_height: layout.position_map.line_height,
5396 corner_radius,
5397 start_y: layout.content_origin.y
5398 + row_range.start.as_f32() * layout.position_map.line_height
5399 - layout.position_map.scroll_pixel_position.y,
5400 lines: row_range
5401 .iter_rows()
5402 .map(|row| {
5403 let line_layout =
5404 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5405 HighlightedRangeLine {
5406 start_x: if row == range.start.row() {
5407 layout.content_origin.x
5408 + line_layout.x_for_index(range.start.column() as usize)
5409 - layout.position_map.scroll_pixel_position.x
5410 } else {
5411 layout.content_origin.x
5412 - layout.position_map.scroll_pixel_position.x
5413 },
5414 end_x: if row == range.end.row() {
5415 layout.content_origin.x
5416 + line_layout.x_for_index(range.end.column() as usize)
5417 - layout.position_map.scroll_pixel_position.x
5418 } else {
5419 layout.content_origin.x + line_layout.width + line_end_overshoot
5420 - layout.position_map.scroll_pixel_position.x
5421 },
5422 }
5423 })
5424 .collect(),
5425 };
5426
5427 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5428 }
5429 }
5430
5431 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5432 if let Some(mut inline_blame) = layout.inline_blame.take() {
5433 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5434 inline_blame.paint(window, cx);
5435 })
5436 }
5437 }
5438
5439 fn paint_diff_hunk_controls(
5440 &mut self,
5441 layout: &mut EditorLayout,
5442 window: &mut Window,
5443 cx: &mut App,
5444 ) {
5445 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5446 diff_hunk_control.paint(window, cx);
5447 }
5448 }
5449
5450 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5451 for mut block in layout.blocks.drain(..) {
5452 block.element.paint(window, cx);
5453 }
5454 }
5455
5456 fn paint_inline_completion_popover(
5457 &mut self,
5458 layout: &mut EditorLayout,
5459 window: &mut Window,
5460 cx: &mut App,
5461 ) {
5462 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5463 inline_completion_popover.paint(window, cx);
5464 }
5465 }
5466
5467 fn paint_mouse_context_menu(
5468 &mut self,
5469 layout: &mut EditorLayout,
5470 window: &mut Window,
5471 cx: &mut App,
5472 ) {
5473 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5474 mouse_context_menu.paint(window, cx);
5475 }
5476 }
5477
5478 fn paint_scroll_wheel_listener(
5479 &mut self,
5480 layout: &EditorLayout,
5481 window: &mut Window,
5482 cx: &mut App,
5483 ) {
5484 window.on_mouse_event({
5485 let position_map = layout.position_map.clone();
5486 let editor = self.editor.clone();
5487 let hitbox = layout.hitbox.clone();
5488 let mut delta = ScrollDelta::default();
5489
5490 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5491 // accidentally turn off their scrolling.
5492 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5493
5494 move |event: &ScrollWheelEvent, phase, window, cx| {
5495 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5496 delta = delta.coalesce(event.delta);
5497 editor.update(cx, |editor, cx| {
5498 let position_map: &PositionMap = &position_map;
5499
5500 let line_height = position_map.line_height;
5501 let max_glyph_width = position_map.em_width;
5502 let (delta, axis) = match delta {
5503 gpui::ScrollDelta::Pixels(mut pixels) => {
5504 //Trackpad
5505 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5506 (pixels, axis)
5507 }
5508
5509 gpui::ScrollDelta::Lines(lines) => {
5510 //Not trackpad
5511 let pixels =
5512 point(lines.x * max_glyph_width, lines.y * line_height);
5513 (pixels, None)
5514 }
5515 };
5516
5517 let current_scroll_position = position_map.snapshot.scroll_position();
5518 let x = (current_scroll_position.x * max_glyph_width
5519 - (delta.x * scroll_sensitivity))
5520 / max_glyph_width;
5521 let y = (current_scroll_position.y * line_height
5522 - (delta.y * scroll_sensitivity))
5523 / line_height;
5524 let mut scroll_position =
5525 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5526 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5527 if forbid_vertical_scroll {
5528 scroll_position.y = current_scroll_position.y;
5529 }
5530
5531 if scroll_position != current_scroll_position {
5532 editor.scroll(scroll_position, axis, window, cx);
5533 cx.stop_propagation();
5534 } else if y < 0. {
5535 // Due to clamping, we may fail to detect cases of overscroll to the top;
5536 // We want the scroll manager to get an update in such cases and detect the change of direction
5537 // on the next frame.
5538 cx.notify();
5539 }
5540 });
5541 }
5542 }
5543 });
5544 }
5545
5546 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5547 self.paint_scroll_wheel_listener(layout, window, cx);
5548
5549 window.on_mouse_event({
5550 let position_map = layout.position_map.clone();
5551 let editor = self.editor.clone();
5552 let multi_buffer_range =
5553 layout
5554 .display_hunks
5555 .iter()
5556 .find_map(|(hunk, hunk_hitbox)| match hunk {
5557 DisplayDiffHunk::Folded { .. } => None,
5558 DisplayDiffHunk::Unfolded {
5559 multi_buffer_range, ..
5560 } => {
5561 if hunk_hitbox
5562 .as_ref()
5563 .map(|hitbox| hitbox.is_hovered(window))
5564 .unwrap_or(false)
5565 {
5566 Some(multi_buffer_range.clone())
5567 } else {
5568 None
5569 }
5570 }
5571 });
5572 let line_numbers = layout.line_numbers.clone();
5573
5574 move |event: &MouseDownEvent, phase, window, cx| {
5575 if phase == DispatchPhase::Bubble {
5576 match event.button {
5577 MouseButton::Left => editor.update(cx, |editor, cx| {
5578 let pending_mouse_down = editor
5579 .pending_mouse_down
5580 .get_or_insert_with(Default::default)
5581 .clone();
5582
5583 *pending_mouse_down.borrow_mut() = Some(event.clone());
5584
5585 Self::mouse_left_down(
5586 editor,
5587 event,
5588 multi_buffer_range.clone(),
5589 &position_map,
5590 line_numbers.as_ref(),
5591 window,
5592 cx,
5593 );
5594 }),
5595 MouseButton::Right => editor.update(cx, |editor, cx| {
5596 Self::mouse_right_down(editor, event, &position_map, window, cx);
5597 }),
5598 MouseButton::Middle => editor.update(cx, |editor, cx| {
5599 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5600 }),
5601 _ => {}
5602 };
5603 }
5604 }
5605 });
5606
5607 window.on_mouse_event({
5608 let editor = self.editor.clone();
5609 let position_map = layout.position_map.clone();
5610
5611 move |event: &MouseUpEvent, phase, window, cx| {
5612 if phase == DispatchPhase::Bubble {
5613 editor.update(cx, |editor, cx| {
5614 Self::mouse_up(editor, event, &position_map, window, cx)
5615 });
5616 }
5617 }
5618 });
5619
5620 window.on_mouse_event({
5621 let editor = self.editor.clone();
5622 let position_map = layout.position_map.clone();
5623 let mut captured_mouse_down = None;
5624
5625 move |event: &MouseUpEvent, phase, window, cx| match phase {
5626 // Clear the pending mouse down during the capture phase,
5627 // so that it happens even if another event handler stops
5628 // propagation.
5629 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5630 let pending_mouse_down = editor
5631 .pending_mouse_down
5632 .get_or_insert_with(Default::default)
5633 .clone();
5634
5635 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5636 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5637 captured_mouse_down = pending_mouse_down.take();
5638 window.refresh();
5639 }
5640 }),
5641 // Fire click handlers during the bubble phase.
5642 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5643 if let Some(mouse_down) = captured_mouse_down.take() {
5644 let event = ClickEvent {
5645 down: mouse_down,
5646 up: event.clone(),
5647 };
5648 Self::click(editor, &event, &position_map, window, cx);
5649 }
5650 }),
5651 }
5652 });
5653
5654 window.on_mouse_event({
5655 let position_map = layout.position_map.clone();
5656 let editor = self.editor.clone();
5657
5658 move |event: &MouseMoveEvent, phase, window, cx| {
5659 if phase == DispatchPhase::Bubble {
5660 editor.update(cx, |editor, cx| {
5661 if editor.hover_state.focused(window, cx) {
5662 return;
5663 }
5664 if event.pressed_button == Some(MouseButton::Left)
5665 || event.pressed_button == Some(MouseButton::Middle)
5666 {
5667 Self::mouse_dragged(editor, event, &position_map, window, cx)
5668 }
5669
5670 Self::mouse_moved(editor, event, &position_map, window, cx)
5671 });
5672 }
5673 }
5674 });
5675 }
5676
5677 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5678 bounds.top_right().x - self.style.scrollbar_width
5679 }
5680
5681 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5682 let style = &self.style;
5683 let font_size = style.text.font_size.to_pixels(window.rem_size());
5684 let layout = window
5685 .text_system()
5686 .shape_line(
5687 SharedString::from(" ".repeat(column)),
5688 font_size,
5689 &[TextRun {
5690 len: column,
5691 font: style.text.font(),
5692 color: Hsla::default(),
5693 background_color: None,
5694 underline: None,
5695 strikethrough: None,
5696 }],
5697 )
5698 .unwrap();
5699
5700 layout.width
5701 }
5702
5703 fn max_line_number_width(
5704 &self,
5705 snapshot: &EditorSnapshot,
5706 window: &mut Window,
5707 cx: &mut App,
5708 ) -> Pixels {
5709 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5710 self.column_pixels(digit_count, window, cx)
5711 }
5712
5713 fn shape_line_number(
5714 &self,
5715 text: SharedString,
5716 color: Hsla,
5717 window: &mut Window,
5718 ) -> anyhow::Result<ShapedLine> {
5719 let run = TextRun {
5720 len: text.len(),
5721 font: self.style.text.font(),
5722 color,
5723 background_color: None,
5724 underline: None,
5725 strikethrough: None,
5726 };
5727 window.text_system().shape_line(
5728 text,
5729 self.style.text.font_size.to_pixels(window.rem_size()),
5730 &[run],
5731 )
5732 }
5733}
5734
5735fn header_jump_data(
5736 snapshot: &EditorSnapshot,
5737 block_row_start: DisplayRow,
5738 height: u32,
5739 for_excerpt: &ExcerptInfo,
5740) -> JumpData {
5741 let range = &for_excerpt.range;
5742 let buffer = &for_excerpt.buffer;
5743 let jump_anchor = range
5744 .primary
5745 .as_ref()
5746 .map_or(range.context.start, |primary| primary.start);
5747
5748 let excerpt_start = range.context.start;
5749 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5750 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5751 0
5752 } else {
5753 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5754 jump_position.row.saturating_sub(excerpt_start_point.row)
5755 };
5756
5757 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5758 .saturating_sub(
5759 snapshot
5760 .scroll_anchor
5761 .scroll_position(&snapshot.display_snapshot)
5762 .y as u32,
5763 );
5764
5765 JumpData::MultiBufferPoint {
5766 excerpt_id: for_excerpt.id,
5767 anchor: jump_anchor,
5768 position: jump_position,
5769 line_offset_from_top,
5770 }
5771}
5772
5773fn inline_completion_accept_indicator(
5774 label: impl Into<SharedString>,
5775 icon: Option<IconName>,
5776 previewing: bool,
5777 focus_handle: FocusHandle,
5778 window: &Window,
5779 cx: &App,
5780) -> AnyElement {
5781 let use_hardcoded_linux_preview_binding;
5782
5783 #[cfg(target_os = "macos")]
5784 {
5785 use_hardcoded_linux_preview_binding = false;
5786 }
5787
5788 #[cfg(not(target_os = "macos"))]
5789 {
5790 use_hardcoded_linux_preview_binding = previewing;
5791 }
5792
5793 let accept_keystroke = if use_hardcoded_linux_preview_binding {
5794 Keystroke {
5795 modifiers: Default::default(),
5796 key: "enter".to_string(),
5797 key_char: None,
5798 }
5799 } else {
5800 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5801 if let Some(keystroke) = bindings
5802 .last()
5803 .and_then(|binding| binding.keystrokes().first())
5804 {
5805 // TODO: clone unnecessary once `use_hardcoded_linux_preview_binding` is removed.
5806 keystroke.clone()
5807 } else {
5808 return div().into_any();
5809 }
5810 };
5811
5812 let accept_key = h_flex()
5813 .px_0p5()
5814 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5815 .text_size(TextSize::XSmall.rems(cx))
5816 .text_color(cx.theme().colors().text)
5817 .gap_1()
5818 .when(!previewing, |parent| {
5819 parent.children(ui::render_modifiers(
5820 &accept_keystroke.modifiers,
5821 PlatformStyle::platform(),
5822 Some(Color::Default),
5823 false,
5824 ))
5825 })
5826 .child(accept_keystroke.key.clone());
5827
5828 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5829
5830 h_flex()
5831 .py_0p5()
5832 .pl_1()
5833 .pr(padding_right)
5834 .gap_1()
5835 .bg(cx.theme().colors().text_accent.opacity(0.15))
5836 .border_1()
5837 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5838 .rounded_md()
5839 .shadow_sm()
5840 .child(accept_key)
5841 .child(Label::new(label).size(LabelSize::Small))
5842 .when_some(icon, |element, icon| {
5843 element.child(
5844 div()
5845 .mt(px(1.5))
5846 .child(Icon::new(icon).size(IconSize::Small)),
5847 )
5848 })
5849 .into_any()
5850}
5851
5852#[allow(clippy::too_many_arguments)]
5853fn prepaint_gutter_button(
5854 button: IconButton,
5855 row: DisplayRow,
5856 line_height: Pixels,
5857 gutter_dimensions: &GutterDimensions,
5858 scroll_pixel_position: gpui::Point<Pixels>,
5859 gutter_hitbox: &Hitbox,
5860 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5861 window: &mut Window,
5862 cx: &mut App,
5863) -> AnyElement {
5864 let mut button = button.into_any_element();
5865 let available_space = size(
5866 AvailableSpace::MinContent,
5867 AvailableSpace::Definite(line_height),
5868 );
5869 let indicator_size = button.layout_as_root(available_space, window, cx);
5870
5871 let blame_width = gutter_dimensions.git_blame_entries_width;
5872 let gutter_width = rows_with_hunk_bounds
5873 .get(&row)
5874 .map(|bounds| bounds.size.width);
5875 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5876
5877 let mut x = left_offset;
5878 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5879 - indicator_size.width
5880 - left_offset;
5881 x += available_width / 2.;
5882
5883 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5884 y += (line_height - indicator_size.height) / 2.;
5885
5886 button.prepaint_as_root(
5887 gutter_hitbox.origin + point(x, y),
5888 available_space,
5889 window,
5890 cx,
5891 );
5892 button
5893}
5894
5895fn render_inline_blame_entry(
5896 blame: &gpui::Entity<GitBlame>,
5897 blame_entry: BlameEntry,
5898 style: &EditorStyle,
5899 workspace: Option<WeakEntity<Workspace>>,
5900 cx: &mut App,
5901) -> AnyElement {
5902 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5903
5904 let author = blame_entry.author.as_deref().unwrap_or_default();
5905 let summary_enabled = ProjectSettings::get_global(cx)
5906 .git
5907 .show_inline_commit_summary();
5908
5909 let text = match blame_entry.summary.as_ref() {
5910 Some(summary) if summary_enabled => {
5911 format!("{}, {} - {}", author, relative_timestamp, summary)
5912 }
5913 _ => format!("{}, {}", author, relative_timestamp),
5914 };
5915
5916 let details = blame.read(cx).details_for_entry(&blame_entry);
5917
5918 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5919
5920 h_flex()
5921 .id("inline-blame")
5922 .w_full()
5923 .font_family(style.text.font().family)
5924 .text_color(cx.theme().status().hint)
5925 .line_height(style.text.line_height)
5926 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5927 .child(text)
5928 .gap_2()
5929 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5930 .into_any()
5931}
5932
5933fn render_blame_entry(
5934 ix: usize,
5935 blame: &gpui::Entity<GitBlame>,
5936 blame_entry: BlameEntry,
5937 style: &EditorStyle,
5938 last_used_color: &mut Option<(PlayerColor, Oid)>,
5939 editor: Entity<Editor>,
5940 cx: &mut App,
5941) -> AnyElement {
5942 let mut sha_color = cx
5943 .theme()
5944 .players()
5945 .color_for_participant(blame_entry.sha.into());
5946 // If the last color we used is the same as the one we get for this line, but
5947 // the commit SHAs are different, then we try again to get a different color.
5948 match *last_used_color {
5949 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5950 let index: u32 = blame_entry.sha.into();
5951 sha_color = cx.theme().players().color_for_participant(index + 1);
5952 }
5953 _ => {}
5954 };
5955 last_used_color.replace((sha_color, blame_entry.sha));
5956
5957 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5958
5959 let short_commit_id = blame_entry.sha.display_short();
5960
5961 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5962 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5963
5964 let details = blame.read(cx).details_for_entry(&blame_entry);
5965
5966 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5967
5968 let tooltip =
5969 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5970
5971 h_flex()
5972 .w_full()
5973 .justify_between()
5974 .font_family(style.text.font().family)
5975 .line_height(style.text.line_height)
5976 .id(("blame", ix))
5977 .text_color(cx.theme().status().hint)
5978 .pr_2()
5979 .gap_2()
5980 .child(
5981 h_flex()
5982 .items_center()
5983 .gap_2()
5984 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5985 .child(name),
5986 )
5987 .child(relative_timestamp)
5988 .on_mouse_down(MouseButton::Right, {
5989 let blame_entry = blame_entry.clone();
5990 let details = details.clone();
5991 move |event, window, cx| {
5992 deploy_blame_entry_context_menu(
5993 &blame_entry,
5994 details.as_ref(),
5995 editor.clone(),
5996 event.position,
5997 window,
5998 cx,
5999 );
6000 }
6001 })
6002 .hover(|style| style.bg(cx.theme().colors().element_hover))
6003 .when_some(
6004 details.and_then(|details| details.permalink),
6005 |this, url| {
6006 let url = url.clone();
6007 this.cursor_pointer().on_click(move |_, _, cx| {
6008 cx.stop_propagation();
6009 cx.open_url(url.as_str())
6010 })
6011 },
6012 )
6013 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6014 .into_any()
6015}
6016
6017fn deploy_blame_entry_context_menu(
6018 blame_entry: &BlameEntry,
6019 details: Option<&CommitDetails>,
6020 editor: Entity<Editor>,
6021 position: gpui::Point<Pixels>,
6022 window: &mut Window,
6023 cx: &mut App,
6024) {
6025 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6026 let sha = format!("{}", blame_entry.sha);
6027 menu.on_blur_subscription(Subscription::new(|| {}))
6028 .entry("Copy commit SHA", None, move |_, cx| {
6029 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6030 })
6031 .when_some(
6032 details.and_then(|details| details.permalink.clone()),
6033 |this, url| {
6034 this.entry("Open permalink", None, move |_, cx| {
6035 cx.open_url(url.as_str())
6036 })
6037 },
6038 )
6039 });
6040
6041 editor.update(cx, move |editor, cx| {
6042 editor.mouse_context_menu = Some(MouseContextMenu::new(
6043 MenuPosition::PinnedToScreen(position),
6044 context_menu,
6045 window,
6046 cx,
6047 ));
6048 cx.notify();
6049 });
6050}
6051
6052#[derive(Debug)]
6053pub(crate) struct LineWithInvisibles {
6054 fragments: SmallVec<[LineFragment; 1]>,
6055 invisibles: Vec<Invisible>,
6056 len: usize,
6057 width: Pixels,
6058 font_size: Pixels,
6059}
6060
6061#[allow(clippy::large_enum_variant)]
6062enum LineFragment {
6063 Text(ShapedLine),
6064 Element {
6065 element: Option<AnyElement>,
6066 size: Size<Pixels>,
6067 len: usize,
6068 },
6069}
6070
6071impl fmt::Debug for LineFragment {
6072 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6073 match self {
6074 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6075 LineFragment::Element { size, len, .. } => f
6076 .debug_struct("Element")
6077 .field("size", size)
6078 .field("len", len)
6079 .finish(),
6080 }
6081 }
6082}
6083
6084impl LineWithInvisibles {
6085 #[allow(clippy::too_many_arguments)]
6086 fn from_chunks<'a>(
6087 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6088 editor_style: &EditorStyle,
6089 max_line_len: usize,
6090 max_line_count: usize,
6091 editor_mode: EditorMode,
6092 text_width: Pixels,
6093 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6094 window: &mut Window,
6095 cx: &mut App,
6096 ) -> Vec<Self> {
6097 let text_style = &editor_style.text;
6098 let mut layouts = Vec::with_capacity(max_line_count);
6099 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6100 let mut line = String::new();
6101 let mut invisibles = Vec::new();
6102 let mut width = Pixels::ZERO;
6103 let mut len = 0;
6104 let mut styles = Vec::new();
6105 let mut non_whitespace_added = false;
6106 let mut row = 0;
6107 let mut line_exceeded_max_len = false;
6108 let font_size = text_style.font_size.to_pixels(window.rem_size());
6109
6110 let ellipsis = SharedString::from("⋯");
6111
6112 for highlighted_chunk in chunks.chain([HighlightedChunk {
6113 text: "\n",
6114 style: None,
6115 is_tab: false,
6116 replacement: None,
6117 }]) {
6118 if let Some(replacement) = highlighted_chunk.replacement {
6119 if !line.is_empty() {
6120 let shaped_line = window
6121 .text_system()
6122 .shape_line(line.clone().into(), font_size, &styles)
6123 .unwrap();
6124 width += shaped_line.width;
6125 len += shaped_line.len;
6126 fragments.push(LineFragment::Text(shaped_line));
6127 line.clear();
6128 styles.clear();
6129 }
6130
6131 match replacement {
6132 ChunkReplacement::Renderer(renderer) => {
6133 let available_width = if renderer.constrain_width {
6134 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6135 ellipsis.clone()
6136 } else {
6137 SharedString::from(Arc::from(highlighted_chunk.text))
6138 };
6139 let shaped_line = window
6140 .text_system()
6141 .shape_line(
6142 chunk,
6143 font_size,
6144 &[text_style.to_run(highlighted_chunk.text.len())],
6145 )
6146 .unwrap();
6147 AvailableSpace::Definite(shaped_line.width)
6148 } else {
6149 AvailableSpace::MinContent
6150 };
6151
6152 let mut element = (renderer.render)(&mut ChunkRendererContext {
6153 context: cx,
6154 window,
6155 max_width: text_width,
6156 });
6157 let line_height = text_style.line_height_in_pixels(window.rem_size());
6158 let size = element.layout_as_root(
6159 size(available_width, AvailableSpace::Definite(line_height)),
6160 window,
6161 cx,
6162 );
6163
6164 width += size.width;
6165 len += highlighted_chunk.text.len();
6166 fragments.push(LineFragment::Element {
6167 element: Some(element),
6168 size,
6169 len: highlighted_chunk.text.len(),
6170 });
6171 }
6172 ChunkReplacement::Str(x) => {
6173 let text_style = if let Some(style) = highlighted_chunk.style {
6174 Cow::Owned(text_style.clone().highlight(style))
6175 } else {
6176 Cow::Borrowed(text_style)
6177 };
6178
6179 let run = TextRun {
6180 len: x.len(),
6181 font: text_style.font(),
6182 color: text_style.color,
6183 background_color: text_style.background_color,
6184 underline: text_style.underline,
6185 strikethrough: text_style.strikethrough,
6186 };
6187 let line_layout = window
6188 .text_system()
6189 .shape_line(x, font_size, &[run])
6190 .unwrap()
6191 .with_len(highlighted_chunk.text.len());
6192
6193 width += line_layout.width;
6194 len += highlighted_chunk.text.len();
6195 fragments.push(LineFragment::Text(line_layout))
6196 }
6197 }
6198 } else {
6199 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6200 if ix > 0 {
6201 let shaped_line = window
6202 .text_system()
6203 .shape_line(line.clone().into(), font_size, &styles)
6204 .unwrap();
6205 width += shaped_line.width;
6206 len += shaped_line.len;
6207 fragments.push(LineFragment::Text(shaped_line));
6208 layouts.push(Self {
6209 width: mem::take(&mut width),
6210 len: mem::take(&mut len),
6211 fragments: mem::take(&mut fragments),
6212 invisibles: std::mem::take(&mut invisibles),
6213 font_size,
6214 });
6215
6216 line.clear();
6217 styles.clear();
6218 row += 1;
6219 line_exceeded_max_len = false;
6220 non_whitespace_added = false;
6221 if row == max_line_count {
6222 return layouts;
6223 }
6224 }
6225
6226 if !line_chunk.is_empty() && !line_exceeded_max_len {
6227 let text_style = if let Some(style) = highlighted_chunk.style {
6228 Cow::Owned(text_style.clone().highlight(style))
6229 } else {
6230 Cow::Borrowed(text_style)
6231 };
6232
6233 if line.len() + line_chunk.len() > max_line_len {
6234 let mut chunk_len = max_line_len - line.len();
6235 while !line_chunk.is_char_boundary(chunk_len) {
6236 chunk_len -= 1;
6237 }
6238 line_chunk = &line_chunk[..chunk_len];
6239 line_exceeded_max_len = true;
6240 }
6241
6242 styles.push(TextRun {
6243 len: line_chunk.len(),
6244 font: text_style.font(),
6245 color: text_style.color,
6246 background_color: text_style.background_color,
6247 underline: text_style.underline,
6248 strikethrough: text_style.strikethrough,
6249 });
6250
6251 if editor_mode == EditorMode::Full {
6252 // Line wrap pads its contents with fake whitespaces,
6253 // avoid printing them
6254 let is_soft_wrapped = is_row_soft_wrapped(row);
6255 if highlighted_chunk.is_tab {
6256 if non_whitespace_added || !is_soft_wrapped {
6257 invisibles.push(Invisible::Tab {
6258 line_start_offset: line.len(),
6259 line_end_offset: line.len() + line_chunk.len(),
6260 });
6261 }
6262 } else {
6263 invisibles.extend(line_chunk.char_indices().filter_map(
6264 |(index, c)| {
6265 let is_whitespace = c.is_whitespace();
6266 non_whitespace_added |= !is_whitespace;
6267 if is_whitespace
6268 && (non_whitespace_added || !is_soft_wrapped)
6269 {
6270 Some(Invisible::Whitespace {
6271 line_offset: line.len() + index,
6272 })
6273 } else {
6274 None
6275 }
6276 },
6277 ))
6278 }
6279 }
6280
6281 line.push_str(line_chunk);
6282 }
6283 }
6284 }
6285 }
6286
6287 layouts
6288 }
6289
6290 #[allow(clippy::too_many_arguments)]
6291 fn prepaint(
6292 &mut self,
6293 line_height: Pixels,
6294 scroll_pixel_position: gpui::Point<Pixels>,
6295 row: DisplayRow,
6296 content_origin: gpui::Point<Pixels>,
6297 line_elements: &mut SmallVec<[AnyElement; 1]>,
6298 window: &mut Window,
6299 cx: &mut App,
6300 ) {
6301 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6302 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6303 for fragment in &mut self.fragments {
6304 match fragment {
6305 LineFragment::Text(line) => {
6306 fragment_origin.x += line.width;
6307 }
6308 LineFragment::Element { element, size, .. } => {
6309 let mut element = element
6310 .take()
6311 .expect("you can't prepaint LineWithInvisibles twice");
6312
6313 // Center the element vertically within the line.
6314 let mut element_origin = fragment_origin;
6315 element_origin.y += (line_height - size.height) / 2.;
6316 element.prepaint_at(element_origin, window, cx);
6317 line_elements.push(element);
6318
6319 fragment_origin.x += size.width;
6320 }
6321 }
6322 }
6323 }
6324
6325 #[allow(clippy::too_many_arguments)]
6326 fn draw(
6327 &self,
6328 layout: &EditorLayout,
6329 row: DisplayRow,
6330 content_origin: gpui::Point<Pixels>,
6331 whitespace_setting: ShowWhitespaceSetting,
6332 selection_ranges: &[Range<DisplayPoint>],
6333 window: &mut Window,
6334 cx: &mut App,
6335 ) {
6336 let line_height = layout.position_map.line_height;
6337 let line_y = line_height
6338 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6339
6340 let mut fragment_origin =
6341 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6342
6343 for fragment in &self.fragments {
6344 match fragment {
6345 LineFragment::Text(line) => {
6346 line.paint(fragment_origin, line_height, window, cx)
6347 .log_err();
6348 fragment_origin.x += line.width;
6349 }
6350 LineFragment::Element { size, .. } => {
6351 fragment_origin.x += size.width;
6352 }
6353 }
6354 }
6355
6356 self.draw_invisibles(
6357 selection_ranges,
6358 layout,
6359 content_origin,
6360 line_y,
6361 row,
6362 line_height,
6363 whitespace_setting,
6364 window,
6365 cx,
6366 );
6367 }
6368
6369 #[allow(clippy::too_many_arguments)]
6370 fn draw_invisibles(
6371 &self,
6372 selection_ranges: &[Range<DisplayPoint>],
6373 layout: &EditorLayout,
6374 content_origin: gpui::Point<Pixels>,
6375 line_y: Pixels,
6376 row: DisplayRow,
6377 line_height: Pixels,
6378 whitespace_setting: ShowWhitespaceSetting,
6379 window: &mut Window,
6380 cx: &mut App,
6381 ) {
6382 let extract_whitespace_info = |invisible: &Invisible| {
6383 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6384 Invisible::Tab {
6385 line_start_offset,
6386 line_end_offset,
6387 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6388 Invisible::Whitespace { line_offset } => {
6389 (*line_offset, line_offset + 1, &layout.space_invisible)
6390 }
6391 };
6392
6393 let x_offset = self.x_for_index(token_offset);
6394 let invisible_offset =
6395 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6396 let origin = content_origin
6397 + gpui::point(
6398 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6399 line_y,
6400 );
6401
6402 (
6403 [token_offset, token_end_offset],
6404 Box::new(move |window: &mut Window, cx: &mut App| {
6405 invisible_symbol
6406 .paint(origin, line_height, window, cx)
6407 .log_err();
6408 }),
6409 )
6410 };
6411
6412 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6413 match whitespace_setting {
6414 ShowWhitespaceSetting::None => (),
6415 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6416 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6417 let invisible_point = DisplayPoint::new(row, start as u32);
6418 if !selection_ranges
6419 .iter()
6420 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6421 {
6422 return;
6423 }
6424
6425 paint(window, cx);
6426 }),
6427
6428 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6429 // - It is a tab
6430 // - It is adjacent to an edge (start or end)
6431 // - It is adjacent to a whitespace (left or right)
6432 ShowWhitespaceSetting::Boundary => {
6433 // We'll need to keep track of the last invisible we've seen and then check if we are adjacent to it for some of
6434 // the above cases.
6435 // Note: We zip in the original `invisibles` to check for tab equality
6436 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6437 for (([start, end], paint), invisible) in
6438 invisible_iter.zip_eq(self.invisibles.iter())
6439 {
6440 let should_render = match (&last_seen, invisible) {
6441 (_, Invisible::Tab { .. }) => true,
6442 (Some((_, last_end, _)), _) => *last_end == start,
6443 _ => false,
6444 };
6445
6446 if should_render || start == 0 || end == self.len {
6447 paint(window, cx);
6448
6449 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6450 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6451 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6452 // Note that we need to make sure that the last one is actually adjacent
6453 if !should_render_last && last_end == start {
6454 paint_last(window, cx);
6455 }
6456 }
6457 }
6458
6459 // Manually render anything within a selection
6460 let invisible_point = DisplayPoint::new(row, start as u32);
6461 if selection_ranges.iter().any(|region| {
6462 region.start <= invisible_point && invisible_point < region.end
6463 }) {
6464 paint(window, cx);
6465 }
6466
6467 last_seen = Some((should_render, end, paint));
6468 }
6469 }
6470 }
6471 }
6472
6473 pub fn x_for_index(&self, index: usize) -> Pixels {
6474 let mut fragment_start_x = Pixels::ZERO;
6475 let mut fragment_start_index = 0;
6476
6477 for fragment in &self.fragments {
6478 match fragment {
6479 LineFragment::Text(shaped_line) => {
6480 let fragment_end_index = fragment_start_index + shaped_line.len;
6481 if index < fragment_end_index {
6482 return fragment_start_x
6483 + shaped_line.x_for_index(index - fragment_start_index);
6484 }
6485 fragment_start_x += shaped_line.width;
6486 fragment_start_index = fragment_end_index;
6487 }
6488 LineFragment::Element { len, size, .. } => {
6489 let fragment_end_index = fragment_start_index + len;
6490 if index < fragment_end_index {
6491 return fragment_start_x;
6492 }
6493 fragment_start_x += size.width;
6494 fragment_start_index = fragment_end_index;
6495 }
6496 }
6497 }
6498
6499 fragment_start_x
6500 }
6501
6502 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6503 let mut fragment_start_x = Pixels::ZERO;
6504 let mut fragment_start_index = 0;
6505
6506 for fragment in &self.fragments {
6507 match fragment {
6508 LineFragment::Text(shaped_line) => {
6509 let fragment_end_x = fragment_start_x + shaped_line.width;
6510 if x < fragment_end_x {
6511 return Some(
6512 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6513 );
6514 }
6515 fragment_start_x = fragment_end_x;
6516 fragment_start_index += shaped_line.len;
6517 }
6518 LineFragment::Element { len, size, .. } => {
6519 let fragment_end_x = fragment_start_x + size.width;
6520 if x < fragment_end_x {
6521 return Some(fragment_start_index);
6522 }
6523 fragment_start_index += len;
6524 fragment_start_x = fragment_end_x;
6525 }
6526 }
6527 }
6528
6529 None
6530 }
6531
6532 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6533 let mut fragment_start_index = 0;
6534
6535 for fragment in &self.fragments {
6536 match fragment {
6537 LineFragment::Text(shaped_line) => {
6538 let fragment_end_index = fragment_start_index + shaped_line.len;
6539 if index < fragment_end_index {
6540 return shaped_line.font_id_for_index(index - fragment_start_index);
6541 }
6542 fragment_start_index = fragment_end_index;
6543 }
6544 LineFragment::Element { len, .. } => {
6545 let fragment_end_index = fragment_start_index + len;
6546 if index < fragment_end_index {
6547 return None;
6548 }
6549 fragment_start_index = fragment_end_index;
6550 }
6551 }
6552 }
6553
6554 None
6555 }
6556}
6557
6558#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6559enum Invisible {
6560 /// A tab character
6561 ///
6562 /// A tab character is internally represented by spaces (configured by the user's tab width)
6563 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6564 /// adjacency checks.
6565 Tab {
6566 line_start_offset: usize,
6567 line_end_offset: usize,
6568 },
6569 Whitespace {
6570 line_offset: usize,
6571 },
6572}
6573
6574impl EditorElement {
6575 /// Returns the rem size to use when rendering the [`EditorElement`].
6576 ///
6577 /// This allows UI elements to scale based on the `buffer_font_size`.
6578 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6579 match self.editor.read(cx).mode {
6580 EditorMode::Full => {
6581 let buffer_font_size = self.style.text.font_size;
6582 match buffer_font_size {
6583 AbsoluteLength::Pixels(pixels) => {
6584 let rem_size_scale = {
6585 // Our default UI font size is 14px on a 16px base scale.
6586 // This means the default UI font size is 0.875rems.
6587 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6588
6589 // We then determine the delta between a single rem and the default font
6590 // size scale.
6591 let default_font_size_delta = 1. - default_font_size_scale;
6592
6593 // Finally, we add this delta to 1rem to get the scale factor that
6594 // should be used to scale up the UI.
6595 1. + default_font_size_delta
6596 };
6597
6598 Some(pixels * rem_size_scale)
6599 }
6600 AbsoluteLength::Rems(rems) => {
6601 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6602 }
6603 }
6604 }
6605 // We currently use single-line and auto-height editors in UI contexts,
6606 // so we don't want to scale everything with the buffer font size, as it
6607 // ends up looking off.
6608 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6609 }
6610 }
6611}
6612
6613impl Element for EditorElement {
6614 type RequestLayoutState = ();
6615 type PrepaintState = EditorLayout;
6616
6617 fn id(&self) -> Option<ElementId> {
6618 None
6619 }
6620
6621 fn request_layout(
6622 &mut self,
6623 _: Option<&GlobalElementId>,
6624 window: &mut Window,
6625 cx: &mut App,
6626 ) -> (gpui::LayoutId, ()) {
6627 let rem_size = self.rem_size(cx);
6628 window.with_rem_size(rem_size, |window| {
6629 self.editor.update(cx, |editor, cx| {
6630 editor.set_style(self.style.clone(), window, cx);
6631
6632 let layout_id = match editor.mode {
6633 EditorMode::SingleLine { auto_width } => {
6634 let rem_size = window.rem_size();
6635
6636 let height = self.style.text.line_height_in_pixels(rem_size);
6637 if auto_width {
6638 let editor_handle = cx.entity().clone();
6639 let style = self.style.clone();
6640 window.request_measured_layout(
6641 Style::default(),
6642 move |_, _, window, cx| {
6643 let editor_snapshot = editor_handle
6644 .update(cx, |editor, cx| editor.snapshot(window, cx));
6645 let line = Self::layout_lines(
6646 DisplayRow(0)..DisplayRow(1),
6647 &editor_snapshot,
6648 &style,
6649 px(f32::MAX),
6650 |_| false, // Single lines never soft wrap
6651 window,
6652 cx,
6653 )
6654 .pop()
6655 .unwrap();
6656
6657 let font_id =
6658 window.text_system().resolve_font(&style.text.font());
6659 let font_size =
6660 style.text.font_size.to_pixels(window.rem_size());
6661 let em_width =
6662 window.text_system().em_width(font_id, font_size).unwrap();
6663
6664 size(line.width + em_width, height)
6665 },
6666 )
6667 } else {
6668 let mut style = Style::default();
6669 style.size.height = height.into();
6670 style.size.width = relative(1.).into();
6671 window.request_layout(style, None, cx)
6672 }
6673 }
6674 EditorMode::AutoHeight { max_lines } => {
6675 let editor_handle = cx.entity().clone();
6676 let max_line_number_width =
6677 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6678 window.request_measured_layout(
6679 Style::default(),
6680 move |known_dimensions, available_space, window, cx| {
6681 editor_handle
6682 .update(cx, |editor, cx| {
6683 compute_auto_height_layout(
6684 editor,
6685 max_lines,
6686 max_line_number_width,
6687 known_dimensions,
6688 available_space.width,
6689 window,
6690 cx,
6691 )
6692 })
6693 .unwrap_or_default()
6694 },
6695 )
6696 }
6697 EditorMode::Full => {
6698 let mut style = Style::default();
6699 style.size.width = relative(1.).into();
6700 style.size.height = relative(1.).into();
6701 window.request_layout(style, None, cx)
6702 }
6703 };
6704
6705 (layout_id, ())
6706 })
6707 })
6708 }
6709
6710 fn prepaint(
6711 &mut self,
6712 _: Option<&GlobalElementId>,
6713 bounds: Bounds<Pixels>,
6714 _: &mut Self::RequestLayoutState,
6715 window: &mut Window,
6716 cx: &mut App,
6717 ) -> Self::PrepaintState {
6718 let text_style = TextStyleRefinement {
6719 font_size: Some(self.style.text.font_size),
6720 line_height: Some(self.style.text.line_height),
6721 ..Default::default()
6722 };
6723 let focus_handle = self.editor.focus_handle(cx);
6724 window.set_view_id(self.editor.entity_id());
6725 window.set_focus_handle(&focus_handle, cx);
6726
6727 let rem_size = self.rem_size(cx);
6728 window.with_rem_size(rem_size, |window| {
6729 window.with_text_style(Some(text_style), |window| {
6730 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6731 let mut snapshot = self
6732 .editor
6733 .update(cx, |editor, cx| editor.snapshot(window, cx));
6734 let style = self.style.clone();
6735
6736 let font_id = window.text_system().resolve_font(&style.text.font());
6737 let font_size = style.text.font_size.to_pixels(window.rem_size());
6738 let line_height = style.text.line_height_in_pixels(window.rem_size());
6739 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6740 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6741
6742 let letter_size = size(em_width, line_height);
6743
6744 let gutter_dimensions = snapshot
6745 .gutter_dimensions(
6746 font_id,
6747 font_size,
6748 self.max_line_number_width(&snapshot, window, cx),
6749 cx,
6750 )
6751 .unwrap_or_default();
6752 let text_width = bounds.size.width - gutter_dimensions.width;
6753
6754 let editor_width = text_width - gutter_dimensions.margin - em_width;
6755
6756 snapshot = self.editor.update(cx, |editor, cx| {
6757 editor.last_bounds = Some(bounds);
6758 editor.gutter_dimensions = gutter_dimensions;
6759 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6760
6761 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6762 snapshot
6763 } else {
6764 let wrap_width = match editor.soft_wrap_mode(cx) {
6765 SoftWrap::GitDiff => None,
6766 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6767 SoftWrap::EditorWidth => Some(editor_width),
6768 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6769 SoftWrap::Bounded(column) => {
6770 Some(editor_width.min(column as f32 * em_advance))
6771 }
6772 };
6773
6774 if editor.set_wrap_width(wrap_width, cx) {
6775 editor.snapshot(window, cx)
6776 } else {
6777 snapshot
6778 }
6779 }
6780 });
6781
6782 let wrap_guides = self
6783 .editor
6784 .read(cx)
6785 .wrap_guides(cx)
6786 .iter()
6787 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6788 .collect::<SmallVec<[_; 2]>>();
6789
6790 let hitbox = window.insert_hitbox(bounds, false);
6791 let gutter_hitbox =
6792 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6793 let text_hitbox = window.insert_hitbox(
6794 Bounds {
6795 origin: gutter_hitbox.top_right(),
6796 size: size(text_width, bounds.size.height),
6797 },
6798 false,
6799 );
6800 // Offset the content_bounds from the text_bounds by the gutter margin (which
6801 // is roughly half a character wide) to make hit testing work more like how we want.
6802 let content_origin =
6803 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6804
6805 let scrollbar_bounds =
6806 Bounds::from_corners(content_origin, bounds.bottom_right());
6807
6808 let height_in_lines = scrollbar_bounds.size.height / line_height;
6809
6810 // NOTE: The max row number in the current file, minus one
6811 let max_row = snapshot.max_point().row().as_f32();
6812
6813 // NOTE: The max scroll position for the top of the window
6814 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6815 (max_row - height_in_lines + 1.).max(0.)
6816 } else {
6817 let settings = EditorSettings::get_global(cx);
6818 match settings.scroll_beyond_last_line {
6819 ScrollBeyondLastLine::OnePage => max_row,
6820 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6821 ScrollBeyondLastLine::VerticalScrollMargin => {
6822 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6823 .max(0.)
6824 }
6825 }
6826 };
6827
6828 // TODO: Autoscrolling for both axes
6829 let mut autoscroll_request = None;
6830 let mut autoscroll_containing_element = false;
6831 let mut autoscroll_horizontally = false;
6832 self.editor.update(cx, |editor, cx| {
6833 autoscroll_request = editor.autoscroll_request();
6834 autoscroll_containing_element =
6835 autoscroll_request.is_some() || editor.has_pending_selection();
6836 // TODO: Is this horizontal or vertical?!
6837 autoscroll_horizontally = editor.autoscroll_vertically(
6838 bounds,
6839 line_height,
6840 max_scroll_top,
6841 window,
6842 cx,
6843 );
6844 snapshot = editor.snapshot(window, cx);
6845 });
6846
6847 let mut scroll_position = snapshot.scroll_position();
6848 // The scroll position is a fractional point, the whole number of which represents
6849 // the top of the window in terms of display rows.
6850 let start_row = DisplayRow(scroll_position.y as u32);
6851 let max_row = snapshot.max_point().row();
6852 let end_row = cmp::min(
6853 (scroll_position.y + height_in_lines).ceil() as u32,
6854 max_row.next_row().0,
6855 );
6856 let end_row = DisplayRow(end_row);
6857
6858 let row_infos = snapshot
6859 .row_infos(start_row)
6860 .take((start_row..end_row).len())
6861 .collect::<Vec<RowInfo>>();
6862 let is_row_soft_wrapped = |row: usize| {
6863 row_infos
6864 .get(row)
6865 .map_or(true, |info| info.buffer_row.is_none())
6866 };
6867
6868 let start_anchor = if start_row == Default::default() {
6869 Anchor::min()
6870 } else {
6871 snapshot.buffer_snapshot.anchor_before(
6872 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6873 )
6874 };
6875 let end_anchor = if end_row > max_row {
6876 Anchor::max()
6877 } else {
6878 snapshot.buffer_snapshot.anchor_before(
6879 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6880 )
6881 };
6882
6883 let mut highlighted_rows = self
6884 .editor
6885 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6886
6887 for (ix, row_info) in row_infos.iter().enumerate() {
6888 let color = match row_info.diff_status {
6889 Some(DiffHunkStatus::Added) => style.status.created_background,
6890 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6891 _ => continue,
6892 };
6893 highlighted_rows
6894 .entry(start_row + DisplayRow(ix as u32))
6895 .or_insert(color);
6896 }
6897
6898 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6899 start_anchor..end_anchor,
6900 &snapshot.display_snapshot,
6901 cx.theme().colors(),
6902 );
6903 let highlighted_gutter_ranges =
6904 self.editor.read(cx).gutter_highlights_in_range(
6905 start_anchor..end_anchor,
6906 &snapshot.display_snapshot,
6907 cx,
6908 );
6909
6910 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6911 start_anchor..end_anchor,
6912 &snapshot.display_snapshot,
6913 cx,
6914 );
6915
6916 let (local_selections, selected_buffer_ids): (
6917 Vec<Selection<Point>>,
6918 Vec<BufferId>,
6919 ) = self.editor.update(cx, |editor, cx| {
6920 let all_selections = editor.selections.all::<Point>(cx);
6921 let selected_buffer_ids = if editor.is_singleton(cx) {
6922 Vec::new()
6923 } else {
6924 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6925
6926 for selection in all_selections {
6927 for buffer_id in snapshot
6928 .buffer_snapshot
6929 .buffer_ids_for_range(selection.range())
6930 {
6931 if selected_buffer_ids.last() != Some(&buffer_id) {
6932 selected_buffer_ids.push(buffer_id);
6933 }
6934 }
6935 }
6936
6937 selected_buffer_ids
6938 };
6939
6940 let mut selections = editor
6941 .selections
6942 .disjoint_in_range(start_anchor..end_anchor, cx);
6943 selections.extend(editor.selections.pending(cx));
6944
6945 (selections, selected_buffer_ids)
6946 });
6947
6948 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6949 start_anchor,
6950 end_anchor,
6951 &local_selections,
6952 &snapshot,
6953 start_row,
6954 end_row,
6955 window,
6956 cx,
6957 );
6958
6959 let line_numbers = self.layout_line_numbers(
6960 Some(&gutter_hitbox),
6961 gutter_dimensions,
6962 line_height,
6963 scroll_position,
6964 start_row..end_row,
6965 &row_infos,
6966 newest_selection_head,
6967 &snapshot,
6968 window,
6969 cx,
6970 );
6971
6972 let mut crease_toggles =
6973 window.with_element_namespace("crease_toggles", |window| {
6974 self.layout_crease_toggles(
6975 start_row..end_row,
6976 &row_infos,
6977 &active_rows,
6978 &snapshot,
6979 window,
6980 cx,
6981 )
6982 });
6983 let crease_trailers =
6984 window.with_element_namespace("crease_trailers", |window| {
6985 self.layout_crease_trailers(
6986 row_infos.iter().copied(),
6987 &snapshot,
6988 window,
6989 cx,
6990 )
6991 });
6992
6993 let display_hunks = self.layout_gutter_diff_hunks(
6994 line_height,
6995 &gutter_hitbox,
6996 start_row..end_row,
6997 &snapshot,
6998 window,
6999 cx,
7000 );
7001
7002 let mut line_layouts = Self::layout_lines(
7003 start_row..end_row,
7004 &snapshot,
7005 &self.style,
7006 editor_width,
7007 is_row_soft_wrapped,
7008 window,
7009 cx,
7010 );
7011
7012 let longest_line_blame_width = self
7013 .editor
7014 .update(cx, |editor, cx| {
7015 if !editor.show_git_blame_inline {
7016 return None;
7017 }
7018 let blame = editor.blame.as_ref()?;
7019 let blame_entry = blame
7020 .update(cx, |blame, cx| {
7021 let row_infos =
7022 snapshot.row_infos(snapshot.longest_row()).next()?;
7023 blame.blame_for_rows(&[row_infos], cx).next()
7024 })
7025 .flatten()?;
7026 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7027 let mut element = render_inline_blame_entry(
7028 blame,
7029 blame_entry,
7030 &style,
7031 workspace,
7032 cx,
7033 );
7034 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7035 Some(
7036 element
7037 .layout_as_root(AvailableSpace::min_size(), window, cx)
7038 .width
7039 + inline_blame_padding,
7040 )
7041 })
7042 .unwrap_or(Pixels::ZERO);
7043
7044 let longest_line_width = layout_line(
7045 snapshot.longest_row(),
7046 &snapshot,
7047 &style,
7048 editor_width,
7049 is_row_soft_wrapped,
7050 window,
7051 cx,
7052 )
7053 .width;
7054
7055 let scrollbar_range_data = ScrollbarRangeData::new(
7056 scrollbar_bounds,
7057 letter_size,
7058 &snapshot,
7059 longest_line_width,
7060 longest_line_blame_width,
7061 &style,
7062 cx,
7063 );
7064
7065 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7066 let mut scroll_width = scroll_range_bounds.size.width;
7067
7068 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7069 snapshot.sticky_header_excerpt(start_row)
7070 } else {
7071 None
7072 };
7073 let sticky_header_excerpt_id =
7074 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7075
7076 let blocks = window.with_element_namespace("blocks", |window| {
7077 self.render_blocks(
7078 start_row..end_row,
7079 &snapshot,
7080 &hitbox,
7081 &text_hitbox,
7082 editor_width,
7083 &mut scroll_width,
7084 &gutter_dimensions,
7085 em_width,
7086 gutter_dimensions.full_width(),
7087 line_height,
7088 &line_layouts,
7089 &local_selections,
7090 &selected_buffer_ids,
7091 is_row_soft_wrapped,
7092 sticky_header_excerpt_id,
7093 window,
7094 cx,
7095 )
7096 });
7097 let mut blocks = match blocks {
7098 Ok(blocks) => blocks,
7099 Err(resized_blocks) => {
7100 self.editor.update(cx, |editor, cx| {
7101 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7102 });
7103 return self.prepaint(None, bounds, &mut (), window, cx);
7104 }
7105 };
7106
7107 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7108 window.with_element_namespace("blocks", |window| {
7109 self.layout_sticky_buffer_header(
7110 sticky_header_excerpt,
7111 scroll_position.y,
7112 line_height,
7113 &snapshot,
7114 &hitbox,
7115 &selected_buffer_ids,
7116 window,
7117 cx,
7118 )
7119 })
7120 });
7121
7122 let start_buffer_row =
7123 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7124 let end_buffer_row =
7125 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7126
7127 let scroll_max = point(
7128 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7129 max_row.as_f32(),
7130 );
7131
7132 self.editor.update(cx, |editor, cx| {
7133 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7134
7135 let autoscrolled = if autoscroll_horizontally {
7136 editor.autoscroll_horizontally(
7137 start_row,
7138 editor_width - (letter_size.width / 2.0),
7139 scroll_width,
7140 em_width,
7141 &line_layouts,
7142 cx,
7143 )
7144 } else {
7145 false
7146 };
7147
7148 if clamped || autoscrolled {
7149 snapshot = editor.snapshot(window, cx);
7150 scroll_position = snapshot.scroll_position();
7151 }
7152 });
7153
7154 let scroll_pixel_position = point(
7155 scroll_position.x * em_width,
7156 scroll_position.y * line_height,
7157 );
7158
7159 let indent_guides = self.layout_indent_guides(
7160 content_origin,
7161 text_hitbox.origin,
7162 start_buffer_row..end_buffer_row,
7163 scroll_pixel_position,
7164 line_height,
7165 &snapshot,
7166 window,
7167 cx,
7168 );
7169
7170 let crease_trailers =
7171 window.with_element_namespace("crease_trailers", |window| {
7172 self.prepaint_crease_trailers(
7173 crease_trailers,
7174 &line_layouts,
7175 line_height,
7176 content_origin,
7177 scroll_pixel_position,
7178 em_width,
7179 window,
7180 cx,
7181 )
7182 });
7183
7184 let mut inline_blame = None;
7185 if let Some(newest_selection_head) = newest_selection_head {
7186 let display_row = newest_selection_head.row();
7187 if (start_row..end_row).contains(&display_row) {
7188 let line_ix = display_row.minus(start_row) as usize;
7189 let row_info = &row_infos[line_ix];
7190 let line_layout = &line_layouts[line_ix];
7191 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7192 inline_blame = self.layout_inline_blame(
7193 display_row,
7194 row_info,
7195 line_layout,
7196 crease_trailer_layout,
7197 em_width,
7198 content_origin,
7199 scroll_pixel_position,
7200 line_height,
7201 window,
7202 cx,
7203 );
7204 }
7205 }
7206
7207 let blamed_display_rows = self.layout_blame_entries(
7208 &row_infos,
7209 em_width,
7210 scroll_position,
7211 line_height,
7212 &gutter_hitbox,
7213 gutter_dimensions.git_blame_entries_width,
7214 window,
7215 cx,
7216 );
7217
7218 let scroll_max = point(
7219 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7220 max_scroll_top,
7221 );
7222
7223 self.editor.update(cx, |editor, cx| {
7224 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7225
7226 let autoscrolled = if autoscroll_horizontally {
7227 editor.autoscroll_horizontally(
7228 start_row,
7229 editor_width - (letter_size.width / 2.0),
7230 scroll_width,
7231 em_width,
7232 &line_layouts,
7233 cx,
7234 )
7235 } else {
7236 false
7237 };
7238
7239 if clamped || autoscrolled {
7240 snapshot = editor.snapshot(window, cx);
7241 scroll_position = snapshot.scroll_position();
7242 }
7243 });
7244
7245 let line_elements = self.prepaint_lines(
7246 start_row,
7247 &mut line_layouts,
7248 line_height,
7249 scroll_pixel_position,
7250 content_origin,
7251 window,
7252 cx,
7253 );
7254
7255 let mut block_start_rows = HashSet::default();
7256
7257 window.with_element_namespace("blocks", |window| {
7258 self.layout_blocks(
7259 &mut blocks,
7260 &mut block_start_rows,
7261 &hitbox,
7262 line_height,
7263 scroll_pixel_position,
7264 window,
7265 cx,
7266 );
7267 });
7268
7269 let cursors = self.collect_cursors(&snapshot, cx);
7270 let visible_row_range = start_row..end_row;
7271 let non_visible_cursors = cursors
7272 .iter()
7273 .any(move |c| !visible_row_range.contains(&c.0.row()));
7274
7275 let visible_cursors = self.layout_visible_cursors(
7276 &snapshot,
7277 &selections,
7278 &block_start_rows,
7279 start_row..end_row,
7280 &line_layouts,
7281 &text_hitbox,
7282 content_origin,
7283 scroll_position,
7284 scroll_pixel_position,
7285 line_height,
7286 em_width,
7287 em_advance,
7288 autoscroll_containing_element,
7289 window,
7290 cx,
7291 );
7292
7293 let scrollbars_layout = self.layout_scrollbars(
7294 &snapshot,
7295 scrollbar_range_data,
7296 scroll_position,
7297 non_visible_cursors,
7298 window,
7299 cx,
7300 );
7301
7302 let gutter_settings = EditorSettings::get_global(cx).gutter;
7303
7304 let rows_with_hunk_bounds = display_hunks
7305 .iter()
7306 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7307 .fold(
7308 HashMap::default(),
7309 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7310 match hunk {
7311 DisplayDiffHunk::Folded { display_row } => {
7312 rows_with_hunk_bounds.insert(*display_row, bounds);
7313 }
7314 DisplayDiffHunk::Unfolded {
7315 display_row_range, ..
7316 } => {
7317 for display_row in display_row_range.iter_rows() {
7318 rows_with_hunk_bounds.insert(display_row, bounds);
7319 }
7320 }
7321 }
7322 rows_with_hunk_bounds
7323 },
7324 );
7325 let mut code_actions_indicator = None;
7326 if let Some(newest_selection_head) = newest_selection_head {
7327 let newest_selection_point =
7328 newest_selection_head.to_point(&snapshot.display_snapshot);
7329
7330 if (start_row..end_row).contains(&newest_selection_head.row()) {
7331 self.layout_cursor_popovers(
7332 line_height,
7333 &text_hitbox,
7334 content_origin,
7335 start_row,
7336 scroll_pixel_position,
7337 &line_layouts,
7338 newest_selection_head,
7339 newest_selection_point,
7340 &style,
7341 window,
7342 cx,
7343 );
7344
7345 let show_code_actions = snapshot
7346 .show_code_actions
7347 .unwrap_or(gutter_settings.code_actions);
7348 if show_code_actions {
7349 let newest_selection_point =
7350 newest_selection_head.to_point(&snapshot.display_snapshot);
7351 if !snapshot
7352 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7353 {
7354 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7355 MultiBufferRow(newest_selection_point.row),
7356 );
7357 if let Some((buffer, range)) = buffer {
7358 let buffer_id = buffer.remote_id();
7359 let row = range.start.row;
7360 let has_test_indicator = self
7361 .editor
7362 .read(cx)
7363 .tasks
7364 .contains_key(&(buffer_id, row));
7365
7366 if !has_test_indicator {
7367 code_actions_indicator = self
7368 .layout_code_actions_indicator(
7369 line_height,
7370 newest_selection_head,
7371 scroll_pixel_position,
7372 &gutter_dimensions,
7373 &gutter_hitbox,
7374 &rows_with_hunk_bounds,
7375 window,
7376 cx,
7377 );
7378 }
7379 }
7380 }
7381 }
7382 }
7383 }
7384
7385 self.layout_gutter_menu(
7386 line_height,
7387 &text_hitbox,
7388 content_origin,
7389 scroll_pixel_position,
7390 gutter_dimensions.width - gutter_dimensions.left_padding,
7391 window,
7392 cx,
7393 );
7394
7395 let test_indicators = if gutter_settings.runnables {
7396 self.layout_run_indicators(
7397 line_height,
7398 start_row..end_row,
7399 scroll_pixel_position,
7400 &gutter_dimensions,
7401 &gutter_hitbox,
7402 &rows_with_hunk_bounds,
7403 &snapshot,
7404 window,
7405 cx,
7406 )
7407 } else {
7408 Vec::new()
7409 };
7410
7411 self.layout_signature_help(
7412 &hitbox,
7413 content_origin,
7414 scroll_pixel_position,
7415 newest_selection_head,
7416 start_row,
7417 &line_layouts,
7418 line_height,
7419 em_width,
7420 window,
7421 cx,
7422 );
7423
7424 if !cx.has_active_drag() {
7425 self.layout_hover_popovers(
7426 &snapshot,
7427 &hitbox,
7428 &text_hitbox,
7429 start_row..end_row,
7430 content_origin,
7431 scroll_pixel_position,
7432 &line_layouts,
7433 line_height,
7434 em_width,
7435 window,
7436 cx,
7437 );
7438 }
7439
7440 let inline_completion_popover = self.layout_inline_completion_popover(
7441 &text_hitbox.bounds,
7442 &snapshot,
7443 start_row..end_row,
7444 scroll_position.y,
7445 scroll_position.y + height_in_lines,
7446 &line_layouts,
7447 line_height,
7448 scroll_pixel_position,
7449 newest_selection_head,
7450 editor_width,
7451 &style,
7452 window,
7453 cx,
7454 );
7455
7456 let mouse_context_menu = self.layout_mouse_context_menu(
7457 &snapshot,
7458 start_row..end_row,
7459 content_origin,
7460 window,
7461 cx,
7462 );
7463
7464 window.with_element_namespace("crease_toggles", |window| {
7465 self.prepaint_crease_toggles(
7466 &mut crease_toggles,
7467 line_height,
7468 &gutter_dimensions,
7469 gutter_settings,
7470 scroll_pixel_position,
7471 &gutter_hitbox,
7472 window,
7473 cx,
7474 )
7475 });
7476
7477 let invisible_symbol_font_size = font_size / 2.;
7478 let tab_invisible = window
7479 .text_system()
7480 .shape_line(
7481 "→".into(),
7482 invisible_symbol_font_size,
7483 &[TextRun {
7484 len: "→".len(),
7485 font: self.style.text.font(),
7486 color: cx.theme().colors().editor_invisible,
7487 background_color: None,
7488 underline: None,
7489 strikethrough: None,
7490 }],
7491 )
7492 .unwrap();
7493 let space_invisible = window
7494 .text_system()
7495 .shape_line(
7496 "•".into(),
7497 invisible_symbol_font_size,
7498 &[TextRun {
7499 len: "•".len(),
7500 font: self.style.text.font(),
7501 color: cx.theme().colors().editor_invisible,
7502 background_color: None,
7503 underline: None,
7504 strikethrough: None,
7505 }],
7506 )
7507 .unwrap();
7508
7509 let mode = snapshot.mode;
7510
7511 let position_map = Rc::new(PositionMap {
7512 size: bounds.size,
7513 scroll_pixel_position,
7514 scroll_max,
7515 line_layouts,
7516 line_height,
7517 em_width,
7518 em_advance,
7519 snapshot,
7520 gutter_hitbox: gutter_hitbox.clone(),
7521 text_hitbox: text_hitbox.clone(),
7522 });
7523
7524 self.editor.update(cx, |editor, _| {
7525 editor.last_position_map = Some(position_map.clone())
7526 });
7527
7528 let hunk_controls = self.layout_diff_hunk_controls(
7529 start_row..end_row,
7530 &row_infos,
7531 &text_hitbox,
7532 &position_map,
7533 newest_selection_head,
7534 line_height,
7535 scroll_pixel_position,
7536 &display_hunks,
7537 self.editor.clone(),
7538 window,
7539 cx,
7540 );
7541
7542 EditorLayout {
7543 mode,
7544 position_map,
7545 visible_display_row_range: start_row..end_row,
7546 wrap_guides,
7547 indent_guides,
7548 hitbox,
7549 gutter_hitbox,
7550 display_hunks,
7551 content_origin,
7552 scrollbars_layout,
7553 active_rows,
7554 highlighted_rows,
7555 highlighted_ranges,
7556 highlighted_gutter_ranges,
7557 redacted_ranges,
7558 line_elements,
7559 line_numbers,
7560 blamed_display_rows,
7561 inline_blame,
7562 blocks,
7563 cursors,
7564 visible_cursors,
7565 selections,
7566 inline_completion_popover,
7567 diff_hunk_controls: hunk_controls,
7568 mouse_context_menu,
7569 test_indicators,
7570 code_actions_indicator,
7571 crease_toggles,
7572 crease_trailers,
7573 tab_invisible,
7574 space_invisible,
7575 sticky_buffer_header,
7576 }
7577 })
7578 })
7579 })
7580 }
7581
7582 fn paint(
7583 &mut self,
7584 _: Option<&GlobalElementId>,
7585 bounds: Bounds<gpui::Pixels>,
7586 _: &mut Self::RequestLayoutState,
7587 layout: &mut Self::PrepaintState,
7588 window: &mut Window,
7589 cx: &mut App,
7590 ) {
7591 let focus_handle = self.editor.focus_handle(cx);
7592 let key_context = self
7593 .editor
7594 .update(cx, |editor, cx| editor.key_context(window, cx));
7595
7596 window.set_key_context(key_context);
7597 window.handle_input(
7598 &focus_handle,
7599 ElementInputHandler::new(bounds, self.editor.clone()),
7600 cx,
7601 );
7602 self.register_actions(window, cx);
7603 self.register_key_listeners(window, cx, layout);
7604
7605 let text_style = TextStyleRefinement {
7606 font_size: Some(self.style.text.font_size),
7607 line_height: Some(self.style.text.line_height),
7608 ..Default::default()
7609 };
7610 let rem_size = self.rem_size(cx);
7611 window.with_rem_size(rem_size, |window| {
7612 window.with_text_style(Some(text_style), |window| {
7613 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7614 self.paint_mouse_listeners(layout, window, cx);
7615 self.paint_background(layout, window, cx);
7616 self.paint_indent_guides(layout, window, cx);
7617
7618 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7619 self.paint_blamed_display_rows(layout, window, cx);
7620 self.paint_line_numbers(layout, window, cx);
7621 }
7622
7623 self.paint_text(layout, window, cx);
7624
7625 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7626 self.paint_gutter_highlights(layout, window, cx);
7627 self.paint_gutter_indicators(layout, window, cx);
7628 }
7629
7630 if !layout.blocks.is_empty() {
7631 window.with_element_namespace("blocks", |window| {
7632 self.paint_blocks(layout, window, cx);
7633 });
7634 }
7635
7636 window.with_element_namespace("blocks", |window| {
7637 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7638 sticky_header.paint(window, cx)
7639 }
7640 });
7641
7642 self.paint_scrollbars(layout, window, cx);
7643 self.paint_inline_completion_popover(layout, window, cx);
7644 self.paint_mouse_context_menu(layout, window, cx);
7645 });
7646 })
7647 })
7648 }
7649}
7650
7651pub(super) fn gutter_bounds(
7652 editor_bounds: Bounds<Pixels>,
7653 gutter_dimensions: GutterDimensions,
7654) -> Bounds<Pixels> {
7655 Bounds {
7656 origin: editor_bounds.origin,
7657 size: size(gutter_dimensions.width, editor_bounds.size.height),
7658 }
7659}
7660
7661struct ScrollbarRangeData {
7662 scrollbar_bounds: Bounds<Pixels>,
7663 scroll_range: Bounds<Pixels>,
7664 letter_size: Size<Pixels>,
7665}
7666
7667impl ScrollbarRangeData {
7668 pub fn new(
7669 scrollbar_bounds: Bounds<Pixels>,
7670 letter_size: Size<Pixels>,
7671 snapshot: &EditorSnapshot,
7672 longest_line_width: Pixels,
7673 longest_line_blame_width: Pixels,
7674 style: &EditorStyle,
7675
7676 cx: &mut App,
7677 ) -> ScrollbarRangeData {
7678 // TODO: Simplify this function down, it requires a lot of parameters
7679 let max_row = snapshot.max_point().row();
7680 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7681
7682 let scrollbar_width = style.scrollbar_width;
7683
7684 let settings = EditorSettings::get_global(cx);
7685 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7686 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7687 ScrollBeyondLastLine::Off => px(1.),
7688 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7689 };
7690
7691 let overscroll = size(
7692 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7693 letter_size.height * scroll_beyond_last_line,
7694 );
7695
7696 let scroll_range = Bounds {
7697 origin: scrollbar_bounds.origin,
7698 size: text_bounds_size + overscroll,
7699 };
7700
7701 ScrollbarRangeData {
7702 scrollbar_bounds,
7703 scroll_range,
7704 letter_size,
7705 }
7706 }
7707}
7708
7709impl IntoElement for EditorElement {
7710 type Element = Self;
7711
7712 fn into_element(self) -> Self::Element {
7713 self
7714 }
7715}
7716
7717pub struct EditorLayout {
7718 position_map: Rc<PositionMap>,
7719 hitbox: Hitbox,
7720 gutter_hitbox: Hitbox,
7721 content_origin: gpui::Point<Pixels>,
7722 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7723 mode: EditorMode,
7724 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7725 indent_guides: Option<Vec<IndentGuideLayout>>,
7726 visible_display_row_range: Range<DisplayRow>,
7727 active_rows: BTreeMap<DisplayRow, bool>,
7728 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7729 line_elements: SmallVec<[AnyElement; 1]>,
7730 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7731 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7732 blamed_display_rows: Option<Vec<AnyElement>>,
7733 inline_blame: Option<AnyElement>,
7734 blocks: Vec<BlockLayout>,
7735 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7736 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7737 redacted_ranges: Vec<Range<DisplayPoint>>,
7738 cursors: Vec<(DisplayPoint, Hsla)>,
7739 visible_cursors: Vec<CursorLayout>,
7740 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7741 code_actions_indicator: Option<AnyElement>,
7742 test_indicators: Vec<AnyElement>,
7743 crease_toggles: Vec<Option<AnyElement>>,
7744 diff_hunk_controls: Vec<AnyElement>,
7745 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7746 inline_completion_popover: Option<AnyElement>,
7747 mouse_context_menu: Option<AnyElement>,
7748 tab_invisible: ShapedLine,
7749 space_invisible: ShapedLine,
7750 sticky_buffer_header: Option<AnyElement>,
7751}
7752
7753impl EditorLayout {
7754 fn line_end_overshoot(&self) -> Pixels {
7755 0.15 * self.position_map.line_height
7756 }
7757}
7758
7759struct LineNumberLayout {
7760 shaped_line: ShapedLine,
7761 hitbox: Option<Hitbox>,
7762 display_row: DisplayRow,
7763}
7764
7765struct ColoredRange<T> {
7766 start: T,
7767 end: T,
7768 color: Hsla,
7769}
7770
7771#[derive(Clone)]
7772struct ScrollbarLayout {
7773 hitbox: Hitbox,
7774 visible_range: Range<f32>,
7775 visible: bool,
7776 text_unit_size: Pixels,
7777 thumb_size: Pixels,
7778 axis: Axis,
7779}
7780
7781impl ScrollbarLayout {
7782 const BORDER_WIDTH: Pixels = px(1.0);
7783 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7784 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7785 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7786
7787 fn thumb_bounds(&self) -> Bounds<Pixels> {
7788 match self.axis {
7789 Axis::Vertical => {
7790 let thumb_top = self.y_for_row(self.visible_range.start);
7791 let thumb_bottom = thumb_top + self.thumb_size;
7792 Bounds::from_corners(
7793 point(self.hitbox.left(), thumb_top),
7794 point(self.hitbox.right(), thumb_bottom),
7795 )
7796 }
7797 Axis::Horizontal => {
7798 let thumb_left =
7799 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7800 let thumb_right = thumb_left + self.thumb_size;
7801 Bounds::from_corners(
7802 point(thumb_left, self.hitbox.top()),
7803 point(thumb_right, self.hitbox.bottom()),
7804 )
7805 }
7806 }
7807 }
7808
7809 fn y_for_row(&self, row: f32) -> Pixels {
7810 self.hitbox.top() + row * self.text_unit_size
7811 }
7812
7813 fn marker_quads_for_ranges(
7814 &self,
7815 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7816 column: Option<usize>,
7817 ) -> Vec<PaintQuad> {
7818 struct MinMax {
7819 min: Pixels,
7820 max: Pixels,
7821 }
7822 let (x_range, height_limit) = if let Some(column) = column {
7823 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7824 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7825 let end = start + column_width;
7826 (
7827 Range { start, end },
7828 MinMax {
7829 min: Self::MIN_MARKER_HEIGHT,
7830 max: px(f32::MAX),
7831 },
7832 )
7833 } else {
7834 (
7835 Range {
7836 start: Self::BORDER_WIDTH,
7837 end: self.hitbox.size.width,
7838 },
7839 MinMax {
7840 min: Self::LINE_MARKER_HEIGHT,
7841 max: Self::LINE_MARKER_HEIGHT,
7842 },
7843 )
7844 };
7845
7846 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7847 let mut pixel_ranges = row_ranges
7848 .into_iter()
7849 .map(|range| {
7850 let start_y = row_to_y(range.start);
7851 let end_y = row_to_y(range.end)
7852 + self
7853 .text_unit_size
7854 .max(height_limit.min)
7855 .min(height_limit.max);
7856 ColoredRange {
7857 start: start_y,
7858 end: end_y,
7859 color: range.color,
7860 }
7861 })
7862 .peekable();
7863
7864 let mut quads = Vec::new();
7865 while let Some(mut pixel_range) = pixel_ranges.next() {
7866 while let Some(next_pixel_range) = pixel_ranges.peek() {
7867 if pixel_range.end >= next_pixel_range.start - px(1.0)
7868 && pixel_range.color == next_pixel_range.color
7869 {
7870 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7871 pixel_ranges.next();
7872 } else {
7873 break;
7874 }
7875 }
7876
7877 let bounds = Bounds::from_corners(
7878 point(x_range.start, pixel_range.start),
7879 point(x_range.end, pixel_range.end),
7880 );
7881 quads.push(quad(
7882 bounds,
7883 Corners::default(),
7884 pixel_range.color,
7885 Edges::default(),
7886 Hsla::transparent_black(),
7887 ));
7888 }
7889
7890 quads
7891 }
7892}
7893
7894struct CreaseTrailerLayout {
7895 element: AnyElement,
7896 bounds: Bounds<Pixels>,
7897}
7898
7899pub(crate) struct PositionMap {
7900 pub size: Size<Pixels>,
7901 pub line_height: Pixels,
7902 pub scroll_pixel_position: gpui::Point<Pixels>,
7903 pub scroll_max: gpui::Point<f32>,
7904 pub em_width: Pixels,
7905 pub em_advance: Pixels,
7906 pub line_layouts: Vec<LineWithInvisibles>,
7907 pub snapshot: EditorSnapshot,
7908 pub text_hitbox: Hitbox,
7909 pub gutter_hitbox: Hitbox,
7910}
7911
7912#[derive(Debug, Copy, Clone)]
7913pub struct PointForPosition {
7914 pub previous_valid: DisplayPoint,
7915 pub next_valid: DisplayPoint,
7916 pub exact_unclipped: DisplayPoint,
7917 pub column_overshoot_after_line_end: u32,
7918}
7919
7920impl PointForPosition {
7921 pub fn as_valid(&self) -> Option<DisplayPoint> {
7922 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7923 Some(self.previous_valid)
7924 } else {
7925 None
7926 }
7927 }
7928}
7929
7930impl PositionMap {
7931 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7932 let text_bounds = self.text_hitbox.bounds;
7933 let scroll_position = self.snapshot.scroll_position();
7934 let position = position - text_bounds.origin;
7935 let y = position.y.max(px(0.)).min(self.size.height);
7936 let x = position.x + (scroll_position.x * self.em_width);
7937 let row = ((y / self.line_height) + scroll_position.y) as u32;
7938
7939 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7940 .line_layouts
7941 .get(row as usize - scroll_position.y as usize)
7942 {
7943 if let Some(ix) = line.index_for_x(x) {
7944 (ix as u32, px(0.))
7945 } else {
7946 (line.len as u32, px(0.).max(x - line.width))
7947 }
7948 } else {
7949 (0, x)
7950 };
7951
7952 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7953 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7954 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7955
7956 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7957 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7958 PointForPosition {
7959 previous_valid,
7960 next_valid,
7961 exact_unclipped,
7962 column_overshoot_after_line_end,
7963 }
7964 }
7965}
7966
7967struct BlockLayout {
7968 id: BlockId,
7969 row: Option<DisplayRow>,
7970 element: AnyElement,
7971 available_space: Size<AvailableSpace>,
7972 style: BlockStyle,
7973}
7974
7975fn layout_line(
7976 row: DisplayRow,
7977 snapshot: &EditorSnapshot,
7978 style: &EditorStyle,
7979 text_width: Pixels,
7980 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7981 window: &mut Window,
7982 cx: &mut App,
7983) -> LineWithInvisibles {
7984 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7985 LineWithInvisibles::from_chunks(
7986 chunks,
7987 &style,
7988 MAX_LINE_LEN,
7989 1,
7990 snapshot.mode,
7991 text_width,
7992 is_row_soft_wrapped,
7993 window,
7994 cx,
7995 )
7996 .pop()
7997 .unwrap()
7998}
7999
8000#[derive(Debug)]
8001pub struct IndentGuideLayout {
8002 origin: gpui::Point<Pixels>,
8003 length: Pixels,
8004 single_indent_width: Pixels,
8005 depth: u32,
8006 active: bool,
8007 settings: IndentGuideSettings,
8008}
8009
8010pub struct CursorLayout {
8011 origin: gpui::Point<Pixels>,
8012 block_width: Pixels,
8013 line_height: Pixels,
8014 color: Hsla,
8015 shape: CursorShape,
8016 block_text: Option<ShapedLine>,
8017 cursor_name: Option<AnyElement>,
8018}
8019
8020#[derive(Debug)]
8021pub struct CursorName {
8022 string: SharedString,
8023 color: Hsla,
8024 is_top_row: bool,
8025}
8026
8027impl CursorLayout {
8028 pub fn new(
8029 origin: gpui::Point<Pixels>,
8030 block_width: Pixels,
8031 line_height: Pixels,
8032 color: Hsla,
8033 shape: CursorShape,
8034 block_text: Option<ShapedLine>,
8035 ) -> CursorLayout {
8036 CursorLayout {
8037 origin,
8038 block_width,
8039 line_height,
8040 color,
8041 shape,
8042 block_text,
8043 cursor_name: None,
8044 }
8045 }
8046
8047 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8048 Bounds {
8049 origin: self.origin + origin,
8050 size: size(self.block_width, self.line_height),
8051 }
8052 }
8053
8054 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8055 match self.shape {
8056 CursorShape::Bar => Bounds {
8057 origin: self.origin + origin,
8058 size: size(px(2.0), self.line_height),
8059 },
8060 CursorShape::Block | CursorShape::Hollow => Bounds {
8061 origin: self.origin + origin,
8062 size: size(self.block_width, self.line_height),
8063 },
8064 CursorShape::Underline => Bounds {
8065 origin: self.origin
8066 + origin
8067 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8068 size: size(self.block_width, px(2.0)),
8069 },
8070 }
8071 }
8072
8073 pub fn layout(
8074 &mut self,
8075 origin: gpui::Point<Pixels>,
8076 cursor_name: Option<CursorName>,
8077 window: &mut Window,
8078 cx: &mut App,
8079 ) {
8080 if let Some(cursor_name) = cursor_name {
8081 let bounds = self.bounds(origin);
8082 let text_size = self.line_height / 1.5;
8083
8084 let name_origin = if cursor_name.is_top_row {
8085 point(bounds.right() - px(1.), bounds.top())
8086 } else {
8087 match self.shape {
8088 CursorShape::Bar => point(
8089 bounds.right() - px(2.),
8090 bounds.top() - text_size / 2. - px(1.),
8091 ),
8092 _ => point(
8093 bounds.right() - px(1.),
8094 bounds.top() - text_size / 2. - px(1.),
8095 ),
8096 }
8097 };
8098 let mut name_element = div()
8099 .bg(self.color)
8100 .text_size(text_size)
8101 .px_0p5()
8102 .line_height(text_size + px(2.))
8103 .text_color(cursor_name.color)
8104 .child(cursor_name.string.clone())
8105 .into_any_element();
8106
8107 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8108
8109 self.cursor_name = Some(name_element);
8110 }
8111 }
8112
8113 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8114 let bounds = self.bounds(origin);
8115
8116 //Draw background or border quad
8117 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8118 outline(bounds, self.color)
8119 } else {
8120 fill(bounds, self.color)
8121 };
8122
8123 if let Some(name) = &mut self.cursor_name {
8124 name.paint(window, cx);
8125 }
8126
8127 window.paint_quad(cursor);
8128
8129 if let Some(block_text) = &self.block_text {
8130 block_text
8131 .paint(self.origin + origin, self.line_height, window, cx)
8132 .log_err();
8133 }
8134 }
8135
8136 pub fn shape(&self) -> CursorShape {
8137 self.shape
8138 }
8139}
8140
8141#[derive(Debug)]
8142pub struct HighlightedRange {
8143 pub start_y: Pixels,
8144 pub line_height: Pixels,
8145 pub lines: Vec<HighlightedRangeLine>,
8146 pub color: Hsla,
8147 pub corner_radius: Pixels,
8148}
8149
8150#[derive(Debug)]
8151pub struct HighlightedRangeLine {
8152 pub start_x: Pixels,
8153 pub end_x: Pixels,
8154}
8155
8156impl HighlightedRange {
8157 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8158 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8159 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8160 self.paint_lines(
8161 self.start_y + self.line_height,
8162 &self.lines[1..],
8163 bounds,
8164 window,
8165 );
8166 } else {
8167 self.paint_lines(self.start_y, &self.lines, bounds, window);
8168 }
8169 }
8170
8171 fn paint_lines(
8172 &self,
8173 start_y: Pixels,
8174 lines: &[HighlightedRangeLine],
8175 _bounds: Bounds<Pixels>,
8176 window: &mut Window,
8177 ) {
8178 if lines.is_empty() {
8179 return;
8180 }
8181
8182 let first_line = lines.first().unwrap();
8183 let last_line = lines.last().unwrap();
8184
8185 let first_top_left = point(first_line.start_x, start_y);
8186 let first_top_right = point(first_line.end_x, start_y);
8187
8188 let curve_height = point(Pixels::ZERO, self.corner_radius);
8189 let curve_width = |start_x: Pixels, end_x: Pixels| {
8190 let max = (end_x - start_x) / 2.;
8191 let width = if max < self.corner_radius {
8192 max
8193 } else {
8194 self.corner_radius
8195 };
8196
8197 point(width, Pixels::ZERO)
8198 };
8199
8200 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8201 let mut path = gpui::Path::new(first_top_right - top_curve_width);
8202 path.curve_to(first_top_right + curve_height, first_top_right);
8203
8204 let mut iter = lines.iter().enumerate().peekable();
8205 while let Some((ix, line)) = iter.next() {
8206 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8207
8208 if let Some((_, next_line)) = iter.peek() {
8209 let next_top_right = point(next_line.end_x, bottom_right.y);
8210
8211 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8212 Ordering::Equal => {
8213 path.line_to(bottom_right);
8214 }
8215 Ordering::Less => {
8216 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8217 path.line_to(bottom_right - curve_height);
8218 if self.corner_radius > Pixels::ZERO {
8219 path.curve_to(bottom_right - curve_width, bottom_right);
8220 }
8221 path.line_to(next_top_right + curve_width);
8222 if self.corner_radius > Pixels::ZERO {
8223 path.curve_to(next_top_right + curve_height, next_top_right);
8224 }
8225 }
8226 Ordering::Greater => {
8227 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8228 path.line_to(bottom_right - curve_height);
8229 if self.corner_radius > Pixels::ZERO {
8230 path.curve_to(bottom_right + curve_width, bottom_right);
8231 }
8232 path.line_to(next_top_right - curve_width);
8233 if self.corner_radius > Pixels::ZERO {
8234 path.curve_to(next_top_right + curve_height, next_top_right);
8235 }
8236 }
8237 }
8238 } else {
8239 let curve_width = curve_width(line.start_x, line.end_x);
8240 path.line_to(bottom_right - curve_height);
8241 if self.corner_radius > Pixels::ZERO {
8242 path.curve_to(bottom_right - curve_width, bottom_right);
8243 }
8244
8245 let bottom_left = point(line.start_x, bottom_right.y);
8246 path.line_to(bottom_left + curve_width);
8247 if self.corner_radius > Pixels::ZERO {
8248 path.curve_to(bottom_left - curve_height, bottom_left);
8249 }
8250 }
8251 }
8252
8253 if first_line.start_x > last_line.start_x {
8254 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8255 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8256 path.line_to(second_top_left + curve_height);
8257 if self.corner_radius > Pixels::ZERO {
8258 path.curve_to(second_top_left + curve_width, second_top_left);
8259 }
8260 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8261 path.line_to(first_bottom_left - curve_width);
8262 if self.corner_radius > Pixels::ZERO {
8263 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
8264 }
8265 }
8266
8267 path.line_to(first_top_left + curve_height);
8268 if self.corner_radius > Pixels::ZERO {
8269 path.curve_to(first_top_left + top_curve_width, first_top_left);
8270 }
8271 path.line_to(first_top_right - top_curve_width);
8272
8273 window.paint_path(path, self.color);
8274 }
8275}
8276
8277enum CursorPopoverType {
8278 CodeContextMenu,
8279 EditPrediction,
8280}
8281
8282pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8283 (delta.pow(1.5) / 100.0).into()
8284}
8285
8286fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8287 (delta.pow(1.2) / 300.0).into()
8288}
8289
8290pub fn register_action<T: Action>(
8291 editor: &Entity<Editor>,
8292 window: &mut Window,
8293 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8294) {
8295 let editor = editor.clone();
8296 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8297 let action = action.downcast_ref().unwrap();
8298 if phase == DispatchPhase::Bubble {
8299 editor.update(cx, |editor, cx| {
8300 listener(editor, action, window, cx);
8301 })
8302 }
8303 })
8304}
8305
8306fn compute_auto_height_layout(
8307 editor: &mut Editor,
8308 max_lines: usize,
8309 max_line_number_width: Pixels,
8310 known_dimensions: Size<Option<Pixels>>,
8311 available_width: AvailableSpace,
8312 window: &mut Window,
8313 cx: &mut Context<Editor>,
8314) -> Option<Size<Pixels>> {
8315 let width = known_dimensions.width.or({
8316 if let AvailableSpace::Definite(available_width) = available_width {
8317 Some(available_width)
8318 } else {
8319 None
8320 }
8321 })?;
8322 if let Some(height) = known_dimensions.height {
8323 return Some(size(width, height));
8324 }
8325
8326 let style = editor.style.as_ref().unwrap();
8327 let font_id = window.text_system().resolve_font(&style.text.font());
8328 let font_size = style.text.font_size.to_pixels(window.rem_size());
8329 let line_height = style.text.line_height_in_pixels(window.rem_size());
8330 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8331
8332 let mut snapshot = editor.snapshot(window, cx);
8333 let gutter_dimensions = snapshot
8334 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8335 .unwrap_or_default();
8336
8337 editor.gutter_dimensions = gutter_dimensions;
8338 let text_width = width - gutter_dimensions.width;
8339 let overscroll = size(em_width, px(0.));
8340
8341 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8342 if editor.set_wrap_width(Some(editor_width), cx) {
8343 snapshot = editor.snapshot(window, cx);
8344 }
8345
8346 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8347 let height = scroll_height
8348 .max(line_height)
8349 .min(line_height * max_lines as f32);
8350
8351 Some(size(width, height))
8352}
8353
8354#[cfg(test)]
8355mod tests {
8356 use super::*;
8357 use crate::{
8358 display_map::{BlockPlacement, BlockProperties},
8359 editor_tests::{init_test, update_test_language_settings},
8360 Editor, MultiBuffer,
8361 };
8362 use gpui::{TestAppContext, VisualTestContext};
8363 use language::language_settings;
8364 use log::info;
8365 use similar::DiffableStr;
8366 use std::num::NonZeroU32;
8367 use util::test::sample_text;
8368
8369 #[gpui::test]
8370 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8371 init_test(cx, |_| {});
8372 let window = cx.add_window(|window, cx| {
8373 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8374 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8375 });
8376
8377 let editor = window.root(cx).unwrap();
8378 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8379 let line_height = window
8380 .update(cx, |_, window, _| {
8381 style.text.line_height_in_pixels(window.rem_size())
8382 })
8383 .unwrap();
8384 let element = EditorElement::new(&editor, style);
8385 let snapshot = window
8386 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8387 .unwrap();
8388
8389 let layouts = cx
8390 .update_window(*window, |_, window, cx| {
8391 element.layout_line_numbers(
8392 None,
8393 GutterDimensions {
8394 left_padding: Pixels::ZERO,
8395 right_padding: Pixels::ZERO,
8396 width: px(30.0),
8397 margin: Pixels::ZERO,
8398 git_blame_entries_width: None,
8399 },
8400 line_height,
8401 gpui::Point::default(),
8402 DisplayRow(0)..DisplayRow(6),
8403 &(0..6)
8404 .map(|row| RowInfo {
8405 buffer_row: Some(row),
8406 ..Default::default()
8407 })
8408 .collect::<Vec<_>>(),
8409 Some(DisplayPoint::new(DisplayRow(0), 0)),
8410 &snapshot,
8411 window,
8412 cx,
8413 )
8414 })
8415 .unwrap();
8416 assert_eq!(layouts.len(), 6);
8417
8418 let relative_rows = window
8419 .update(cx, |editor, window, cx| {
8420 let snapshot = editor.snapshot(window, cx);
8421 element.calculate_relative_line_numbers(
8422 &snapshot,
8423 &(DisplayRow(0)..DisplayRow(6)),
8424 Some(DisplayRow(3)),
8425 )
8426 })
8427 .unwrap();
8428 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8429 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8430 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8431 // current line has no relative number
8432 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8433 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8434
8435 // works if cursor is before screen
8436 let relative_rows = window
8437 .update(cx, |editor, window, cx| {
8438 let snapshot = editor.snapshot(window, cx);
8439 element.calculate_relative_line_numbers(
8440 &snapshot,
8441 &(DisplayRow(3)..DisplayRow(6)),
8442 Some(DisplayRow(1)),
8443 )
8444 })
8445 .unwrap();
8446 assert_eq!(relative_rows.len(), 3);
8447 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8448 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8449 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8450
8451 // works if cursor is after screen
8452 let relative_rows = window
8453 .update(cx, |editor, window, cx| {
8454 let snapshot = editor.snapshot(window, cx);
8455 element.calculate_relative_line_numbers(
8456 &snapshot,
8457 &(DisplayRow(0)..DisplayRow(3)),
8458 Some(DisplayRow(6)),
8459 )
8460 })
8461 .unwrap();
8462 assert_eq!(relative_rows.len(), 3);
8463 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8464 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8465 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8466 }
8467
8468 #[gpui::test]
8469 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8470 init_test(cx, |_| {});
8471
8472 let window = cx.add_window(|window, cx| {
8473 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8474 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8475 });
8476 let cx = &mut VisualTestContext::from_window(*window, cx);
8477 let editor = window.root(cx).unwrap();
8478 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8479
8480 window
8481 .update(cx, |editor, window, cx| {
8482 editor.cursor_shape = CursorShape::Block;
8483 editor.change_selections(None, window, cx, |s| {
8484 s.select_ranges([
8485 Point::new(0, 0)..Point::new(1, 0),
8486 Point::new(3, 2)..Point::new(3, 3),
8487 Point::new(5, 6)..Point::new(6, 0),
8488 ]);
8489 });
8490 })
8491 .unwrap();
8492
8493 let (_, state) = cx.draw(
8494 point(px(500.), px(500.)),
8495 size(px(500.), px(500.)),
8496 |_, _| EditorElement::new(&editor, style),
8497 );
8498
8499 assert_eq!(state.selections.len(), 1);
8500 let local_selections = &state.selections[0].1;
8501 assert_eq!(local_selections.len(), 3);
8502 // moves cursor back one line
8503 assert_eq!(
8504 local_selections[0].head,
8505 DisplayPoint::new(DisplayRow(0), 6)
8506 );
8507 assert_eq!(
8508 local_selections[0].range,
8509 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8510 );
8511
8512 // moves cursor back one column
8513 assert_eq!(
8514 local_selections[1].range,
8515 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8516 );
8517 assert_eq!(
8518 local_selections[1].head,
8519 DisplayPoint::new(DisplayRow(3), 2)
8520 );
8521
8522 // leaves cursor on the max point
8523 assert_eq!(
8524 local_selections[2].range,
8525 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8526 );
8527 assert_eq!(
8528 local_selections[2].head,
8529 DisplayPoint::new(DisplayRow(6), 0)
8530 );
8531
8532 // active lines does not include 1 (even though the range of the selection does)
8533 assert_eq!(
8534 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8535 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8536 );
8537
8538 // multi-buffer support
8539 // in DisplayPoint coordinates, this is what we're dealing with:
8540 // 0: [[file
8541 // 1: header
8542 // 2: section]]
8543 // 3: aaaaaa
8544 // 4: bbbbbb
8545 // 5: cccccc
8546 // 6:
8547 // 7: [[footer]]
8548 // 8: [[header]]
8549 // 9: ffffff
8550 // 10: gggggg
8551 // 11: hhhhhh
8552 // 12:
8553 // 13: [[footer]]
8554 // 14: [[file
8555 // 15: header
8556 // 16: section]]
8557 // 17: bbbbbb
8558 // 18: cccccc
8559 // 19: dddddd
8560 // 20: [[footer]]
8561 let window = cx.add_window(|window, cx| {
8562 let buffer = MultiBuffer::build_multi(
8563 [
8564 (
8565 &(sample_text(8, 6, 'a') + "\n"),
8566 vec![
8567 Point::new(0, 0)..Point::new(3, 0),
8568 Point::new(4, 0)..Point::new(7, 0),
8569 ],
8570 ),
8571 (
8572 &(sample_text(8, 6, 'a') + "\n"),
8573 vec![Point::new(1, 0)..Point::new(3, 0)],
8574 ),
8575 ],
8576 cx,
8577 );
8578 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8579 });
8580 let editor = window.root(cx).unwrap();
8581 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8582 let _state = window.update(cx, |editor, window, cx| {
8583 editor.cursor_shape = CursorShape::Block;
8584 editor.change_selections(None, window, cx, |s| {
8585 s.select_display_ranges([
8586 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8587 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8588 ]);
8589 });
8590 });
8591
8592 let (_, state) = cx.draw(
8593 point(px(500.), px(500.)),
8594 size(px(500.), px(500.)),
8595 |_, _| EditorElement::new(&editor, style),
8596 );
8597 assert_eq!(state.selections.len(), 1);
8598 let local_selections = &state.selections[0].1;
8599 assert_eq!(local_selections.len(), 2);
8600
8601 // moves cursor on excerpt boundary back a line
8602 // and doesn't allow selection to bleed through
8603 assert_eq!(
8604 local_selections[0].range,
8605 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8606 );
8607 assert_eq!(
8608 local_selections[0].head,
8609 DisplayPoint::new(DisplayRow(6), 0)
8610 );
8611 // moves cursor on buffer boundary back two lines
8612 // and doesn't allow selection to bleed through
8613 assert_eq!(
8614 local_selections[1].range,
8615 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8616 );
8617 assert_eq!(
8618 local_selections[1].head,
8619 DisplayPoint::new(DisplayRow(12), 0)
8620 );
8621 }
8622
8623 #[gpui::test]
8624 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8625 init_test(cx, |_| {});
8626
8627 let window = cx.add_window(|window, cx| {
8628 let buffer = MultiBuffer::build_simple("", cx);
8629 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8630 });
8631 let cx = &mut VisualTestContext::from_window(*window, cx);
8632 let editor = window.root(cx).unwrap();
8633 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8634 window
8635 .update(cx, |editor, window, cx| {
8636 editor.set_placeholder_text("hello", cx);
8637 editor.insert_blocks(
8638 [BlockProperties {
8639 style: BlockStyle::Fixed,
8640 placement: BlockPlacement::Above(Anchor::min()),
8641 height: 3,
8642 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8643 priority: 0,
8644 }],
8645 None,
8646 cx,
8647 );
8648
8649 // Blur the editor so that it displays placeholder text.
8650 window.blur();
8651 })
8652 .unwrap();
8653
8654 let (_, state) = cx.draw(
8655 point(px(500.), px(500.)),
8656 size(px(500.), px(500.)),
8657 |_, _| EditorElement::new(&editor, style),
8658 );
8659 assert_eq!(state.position_map.line_layouts.len(), 4);
8660 assert_eq!(state.line_numbers.len(), 1);
8661 assert_eq!(
8662 state
8663 .line_numbers
8664 .get(&MultiBufferRow(0))
8665 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8666 Some("1")
8667 );
8668 }
8669
8670 #[gpui::test]
8671 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8672 const TAB_SIZE: u32 = 4;
8673
8674 let input_text = "\t \t|\t| a b";
8675 let expected_invisibles = vec![
8676 Invisible::Tab {
8677 line_start_offset: 0,
8678 line_end_offset: TAB_SIZE as usize,
8679 },
8680 Invisible::Whitespace {
8681 line_offset: TAB_SIZE as usize,
8682 },
8683 Invisible::Tab {
8684 line_start_offset: TAB_SIZE as usize + 1,
8685 line_end_offset: TAB_SIZE as usize * 2,
8686 },
8687 Invisible::Tab {
8688 line_start_offset: TAB_SIZE as usize * 2 + 1,
8689 line_end_offset: TAB_SIZE as usize * 3,
8690 },
8691 Invisible::Whitespace {
8692 line_offset: TAB_SIZE as usize * 3 + 1,
8693 },
8694 Invisible::Whitespace {
8695 line_offset: TAB_SIZE as usize * 3 + 3,
8696 },
8697 ];
8698 assert_eq!(
8699 expected_invisibles.len(),
8700 input_text
8701 .chars()
8702 .filter(|initial_char| initial_char.is_whitespace())
8703 .count(),
8704 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8705 );
8706
8707 for show_line_numbers in [true, false] {
8708 init_test(cx, |s| {
8709 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8710 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8711 });
8712
8713 let actual_invisibles = collect_invisibles_from_new_editor(
8714 cx,
8715 EditorMode::Full,
8716 input_text,
8717 px(500.0),
8718 show_line_numbers,
8719 );
8720
8721 assert_eq!(expected_invisibles, actual_invisibles);
8722 }
8723 }
8724
8725 #[gpui::test]
8726 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8727 init_test(cx, |s| {
8728 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8729 s.defaults.tab_size = NonZeroU32::new(4);
8730 });
8731
8732 for editor_mode_without_invisibles in [
8733 EditorMode::SingleLine { auto_width: false },
8734 EditorMode::AutoHeight { max_lines: 100 },
8735 ] {
8736 for show_line_numbers in [true, false] {
8737 let invisibles = collect_invisibles_from_new_editor(
8738 cx,
8739 editor_mode_without_invisibles,
8740 "\t\t\t| | a b",
8741 px(500.0),
8742 show_line_numbers,
8743 );
8744 assert!(invisibles.is_empty(),
8745 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8746 }
8747 }
8748 }
8749
8750 #[gpui::test]
8751 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8752 let tab_size = 4;
8753 let input_text = "a\tbcd ".repeat(9);
8754 let repeated_invisibles = [
8755 Invisible::Tab {
8756 line_start_offset: 1,
8757 line_end_offset: tab_size as usize,
8758 },
8759 Invisible::Whitespace {
8760 line_offset: tab_size as usize + 3,
8761 },
8762 Invisible::Whitespace {
8763 line_offset: tab_size as usize + 4,
8764 },
8765 Invisible::Whitespace {
8766 line_offset: tab_size as usize + 5,
8767 },
8768 Invisible::Whitespace {
8769 line_offset: tab_size as usize + 6,
8770 },
8771 Invisible::Whitespace {
8772 line_offset: tab_size as usize + 7,
8773 },
8774 ];
8775 let expected_invisibles = std::iter::once(repeated_invisibles)
8776 .cycle()
8777 .take(9)
8778 .flatten()
8779 .collect::<Vec<_>>();
8780 assert_eq!(
8781 expected_invisibles.len(),
8782 input_text
8783 .chars()
8784 .filter(|initial_char| initial_char.is_whitespace())
8785 .count(),
8786 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8787 );
8788 info!("Expected invisibles: {expected_invisibles:?}");
8789
8790 init_test(cx, |_| {});
8791
8792 // Put the same string with repeating whitespace pattern into editors of various size,
8793 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8794 let resize_step = 10.0;
8795 let mut editor_width = 200.0;
8796 while editor_width <= 1000.0 {
8797 for show_line_numbers in [true, false] {
8798 update_test_language_settings(cx, |s| {
8799 s.defaults.tab_size = NonZeroU32::new(tab_size);
8800 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8801 s.defaults.preferred_line_length = Some(editor_width as u32);
8802 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8803 });
8804
8805 let actual_invisibles = collect_invisibles_from_new_editor(
8806 cx,
8807 EditorMode::Full,
8808 &input_text,
8809 px(editor_width),
8810 show_line_numbers,
8811 );
8812
8813 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8814 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8815 let mut i = 0;
8816 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8817 i = actual_index;
8818 match expected_invisibles.get(i) {
8819 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8820 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8821 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8822 _ => {
8823 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8824 }
8825 },
8826 None => {
8827 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8828 }
8829 }
8830 }
8831 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8832 assert!(
8833 missing_expected_invisibles.is_empty(),
8834 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8835 );
8836
8837 editor_width += resize_step;
8838 }
8839 }
8840 }
8841
8842 fn collect_invisibles_from_new_editor(
8843 cx: &mut TestAppContext,
8844 editor_mode: EditorMode,
8845 input_text: &str,
8846 editor_width: Pixels,
8847 show_line_numbers: bool,
8848 ) -> Vec<Invisible> {
8849 info!(
8850 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8851 editor_width.0
8852 );
8853 let window = cx.add_window(|window, cx| {
8854 let buffer = MultiBuffer::build_simple(input_text, cx);
8855 Editor::new(editor_mode, buffer, None, true, window, cx)
8856 });
8857 let cx = &mut VisualTestContext::from_window(*window, cx);
8858 let editor = window.root(cx).unwrap();
8859
8860 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8861 window
8862 .update(cx, |editor, _, cx| {
8863 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8864 editor.set_wrap_width(Some(editor_width), cx);
8865 editor.set_show_line_numbers(show_line_numbers, cx);
8866 })
8867 .unwrap();
8868 let (_, state) = cx.draw(
8869 point(px(500.), px(500.)),
8870 size(px(500.), px(500.)),
8871 |_, _| EditorElement::new(&editor, style),
8872 );
8873 state
8874 .position_map
8875 .line_layouts
8876 .iter()
8877 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8878 .cloned()
8879 .collect()
8880 }
8881}
8882
8883fn diff_hunk_controls(
8884 row: u32,
8885 hunk_range: Range<Anchor>,
8886 line_height: Pixels,
8887 editor: &Entity<Editor>,
8888 cx: &mut App,
8889) -> AnyElement {
8890 h_flex()
8891 .h(line_height)
8892 .mr_1()
8893 .gap_1()
8894 .px_1()
8895 .pb_1()
8896 .border_b_1()
8897 .border_color(cx.theme().colors().border_variant)
8898 .rounded_b_lg()
8899 .bg(cx.theme().colors().editor_background)
8900 .gap_1()
8901 .child(
8902 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8903 .shape(IconButtonShape::Square)
8904 .icon_size(IconSize::Small)
8905 // .disabled(!has_multiple_hunks)
8906 .tooltip({
8907 let focus_handle = editor.focus_handle(cx);
8908 move |window, cx| {
8909 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8910 }
8911 })
8912 .on_click({
8913 let editor = editor.clone();
8914 move |_event, window, cx| {
8915 editor.update(cx, |editor, cx| {
8916 let snapshot = editor.snapshot(window, cx);
8917 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8918 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8919 editor.expand_selected_diff_hunks(cx);
8920 });
8921 }
8922 }),
8923 )
8924 .child(
8925 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8926 .shape(IconButtonShape::Square)
8927 .icon_size(IconSize::Small)
8928 // .disabled(!has_multiple_hunks)
8929 .tooltip({
8930 let focus_handle = editor.focus_handle(cx);
8931 move |window, cx| {
8932 Tooltip::for_action_in(
8933 "Previous Hunk",
8934 &GoToPrevHunk,
8935 &focus_handle,
8936 window,
8937 cx,
8938 )
8939 }
8940 })
8941 .on_click({
8942 let editor = editor.clone();
8943 move |_event, window, cx| {
8944 editor.update(cx, |editor, cx| {
8945 let snapshot = editor.snapshot(window, cx);
8946 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8947 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8948 editor.expand_selected_diff_hunks(cx);
8949 });
8950 }
8951 }),
8952 )
8953 .child(
8954 IconButton::new("discard", IconName::Undo)
8955 .shape(IconButtonShape::Square)
8956 .icon_size(IconSize::Small)
8957 .tooltip({
8958 let focus_handle = editor.focus_handle(cx);
8959 move |window, cx| {
8960 Tooltip::for_action_in(
8961 "Discard Hunk",
8962 &RevertSelectedHunks,
8963 &focus_handle,
8964 window,
8965 cx,
8966 )
8967 }
8968 })
8969 .on_click({
8970 let editor = editor.clone();
8971 move |_event, window, cx| {
8972 editor.update(cx, |editor, cx| {
8973 let snapshot = editor.snapshot(window, cx);
8974 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8975 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8976 });
8977 }
8978 }),
8979 )
8980 .into_any_element()
8981}