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 &line_layouts,
3290 style,
3291 accept_keystroke.as_ref()?,
3292 window,
3293 cx,
3294 )?;
3295 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3296 Some((CursorPopoverType::EditPrediction, element, size))
3297 })
3298 } else {
3299 None
3300 };
3301 vec![edit_prediction, context_menu]
3302 .into_iter()
3303 .flatten()
3304 .collect::<Vec<_>>()
3305 },
3306 ) else {
3307 return;
3308 };
3309
3310 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3311 .iter()
3312 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3313 else {
3314 return;
3315 };
3316 let last_ix = laid_out_popovers.len() - 1;
3317 let menu_is_last = menu_ix == last_ix;
3318 let first_popover_bounds = laid_out_popovers[0].1;
3319 let last_popover_bounds = laid_out_popovers[last_ix].1;
3320
3321 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3322 // right, and otherwise it goes below or to the right.
3323 let mut target_bounds = Bounds::from_corners(
3324 first_popover_bounds.origin,
3325 last_popover_bounds.bottom_right(),
3326 );
3327 target_bounds.size.width = menu_bounds.size.width;
3328
3329 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3330 // based on this is preferred for layout stability.
3331 let mut max_target_bounds = target_bounds;
3332 max_target_bounds.size.height = max_height;
3333 if y_flipped {
3334 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3335 }
3336
3337 // Add spacing around `target_bounds` and `max_target_bounds`.
3338 let mut extend_amount = Edges::all(MENU_GAP);
3339 if y_flipped {
3340 extend_amount.bottom = line_height;
3341 } else {
3342 extend_amount.top = line_height;
3343 }
3344 let target_bounds = target_bounds.extend(extend_amount);
3345 let max_target_bounds = max_target_bounds.extend(extend_amount);
3346
3347 let must_place_above_or_below =
3348 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3349 laid_out_popovers[menu_ix + 1..]
3350 .iter()
3351 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3352 } else {
3353 false
3354 };
3355
3356 self.layout_context_menu_aside(
3357 y_flipped,
3358 *menu_bounds,
3359 target_bounds,
3360 max_target_bounds,
3361 max_menu_height,
3362 must_place_above_or_below,
3363 text_hitbox,
3364 viewport_bounds,
3365 window,
3366 cx,
3367 );
3368 }
3369
3370 #[allow(clippy::too_many_arguments)]
3371 fn layout_gutter_menu(
3372 &self,
3373 line_height: Pixels,
3374 text_hitbox: &Hitbox,
3375 content_origin: gpui::Point<Pixels>,
3376 scroll_pixel_position: gpui::Point<Pixels>,
3377 gutter_overshoot: Pixels,
3378 window: &mut Window,
3379 cx: &mut App,
3380 ) {
3381 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3382 self.editor.read(cx).context_menu_origin()
3383 else {
3384 return;
3385 };
3386 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3387 // indicator than just a plain first column of the text field.
3388 let target_position = content_origin
3389 + gpui::Point {
3390 x: -gutter_overshoot,
3391 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3392 };
3393 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3394 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3395 let viewport_bounds =
3396 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3397 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3398 ..Default::default()
3399 });
3400 self.layout_popovers_above_or_below_line(
3401 target_position,
3402 line_height,
3403 min_height,
3404 max_height,
3405 text_hitbox,
3406 viewport_bounds,
3407 window,
3408 cx,
3409 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3410 let Some(mut element) =
3411 self.render_context_menu(line_height, height, y_flipped, window, cx)
3412 else {
3413 return vec![];
3414 };
3415 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3416 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3417 },
3418 );
3419 }
3420
3421 #[allow(clippy::too_many_arguments)]
3422 fn layout_popovers_above_or_below_line(
3423 &self,
3424 target_position: gpui::Point<Pixels>,
3425 line_height: Pixels,
3426 min_height: Pixels,
3427 max_height: Pixels,
3428 text_hitbox: &Hitbox,
3429 viewport_bounds: Bounds<Pixels>,
3430 window: &mut Window,
3431 cx: &mut App,
3432 make_sized_popovers: impl FnOnce(
3433 Pixels,
3434 Pixels,
3435 bool,
3436 &mut Window,
3437 &mut App,
3438 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3439 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3440 // If the max height won't fit below and there is more space above, put it above the line.
3441 let bottom_y_when_flipped = target_position.y - line_height;
3442 let available_above = bottom_y_when_flipped - text_hitbox.top();
3443 let available_below = text_hitbox.bottom() - target_position.y;
3444 let y_overflows_below = max_height > available_below;
3445 let mut y_flipped = y_overflows_below && available_above > available_below;
3446 let mut height = cmp::min(
3447 max_height,
3448 if y_flipped {
3449 available_above
3450 } else {
3451 available_below
3452 },
3453 );
3454
3455 // If the min height doesn't fit within text bounds, instead fit within the window.
3456 if height < min_height {
3457 let available_above = bottom_y_when_flipped;
3458 let available_below = viewport_bounds.bottom() - target_position.y;
3459 if available_below > min_height {
3460 y_flipped = false;
3461 height = min_height;
3462 } else if available_above > min_height {
3463 y_flipped = true;
3464 height = min_height;
3465 } else if available_above > available_below {
3466 y_flipped = true;
3467 height = available_above;
3468 } else {
3469 y_flipped = false;
3470 height = available_below;
3471 }
3472 }
3473
3474 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3475
3476 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3477 // for very narrow windows.
3478 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3479 if popovers.is_empty() {
3480 return None;
3481 }
3482
3483 let max_width = popovers
3484 .iter()
3485 .map(|(_, _, size)| size.width)
3486 .max()
3487 .unwrap_or_default();
3488
3489 let mut current_position = gpui::Point {
3490 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3491 // overflow. Include space for the scrollbar.
3492 x: target_position
3493 .x
3494 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3495 y: if y_flipped {
3496 bottom_y_when_flipped
3497 } else {
3498 target_position.y
3499 },
3500 };
3501
3502 let mut laid_out_popovers = popovers
3503 .into_iter()
3504 .map(|(popover_type, element, size)| {
3505 if y_flipped {
3506 current_position.y -= size.height;
3507 }
3508 let position = current_position;
3509 window.defer_draw(element, current_position, 1);
3510 if !y_flipped {
3511 current_position.y += size.height + MENU_GAP;
3512 } else {
3513 current_position.y -= MENU_GAP;
3514 }
3515 (popover_type, Bounds::new(position, size))
3516 })
3517 .collect::<Vec<_>>();
3518
3519 if y_flipped {
3520 laid_out_popovers.reverse();
3521 }
3522
3523 Some((laid_out_popovers, y_flipped))
3524 }
3525
3526 #[allow(clippy::too_many_arguments)]
3527 fn layout_context_menu_aside(
3528 &self,
3529 y_flipped: bool,
3530 menu_bounds: Bounds<Pixels>,
3531 target_bounds: Bounds<Pixels>,
3532 max_target_bounds: Bounds<Pixels>,
3533 max_height: Pixels,
3534 must_place_above_or_below: bool,
3535 text_hitbox: &Hitbox,
3536 viewport_bounds: Bounds<Pixels>,
3537 window: &mut Window,
3538 cx: &mut App,
3539 ) {
3540 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3541 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3542 && !must_place_above_or_below
3543 {
3544 let max_width = cmp::min(
3545 available_within_viewport.right - px(1.),
3546 MENU_ASIDE_MAX_WIDTH,
3547 );
3548 let Some(mut aside) =
3549 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3550 else {
3551 return;
3552 };
3553 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3554 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3555 Some((aside, right_position))
3556 } else {
3557 let max_size = size(
3558 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3559 // won't be needed here.
3560 cmp::min(
3561 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3562 viewport_bounds.right(),
3563 ),
3564 cmp::min(
3565 max_height,
3566 cmp::max(
3567 available_within_viewport.top,
3568 available_within_viewport.bottom,
3569 ),
3570 ) - POPOVER_Y_PADDING,
3571 );
3572 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3573 return;
3574 };
3575 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3576
3577 let top_position = point(
3578 menu_bounds.origin.x,
3579 target_bounds.top() - actual_size.height,
3580 );
3581 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3582
3583 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3584 // Prefer to fit on the same side of the line as the menu, then on the other side of
3585 // the line.
3586 if !y_flipped && wanted.height < available.bottom {
3587 Some(bottom_position)
3588 } else if !y_flipped && wanted.height < available.top {
3589 Some(top_position)
3590 } else if y_flipped && wanted.height < available.top {
3591 Some(top_position)
3592 } else if y_flipped && wanted.height < available.bottom {
3593 Some(bottom_position)
3594 } else {
3595 None
3596 }
3597 };
3598
3599 // Prefer choosing a direction using max sizes rather than actual size for stability.
3600 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3601 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3602 let aside_position = fit_within(available_within_text, wanted)
3603 // Fallback: fit max size in window.
3604 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3605 // Fallback: fit actual size in window.
3606 .or_else(|| fit_within(available_within_viewport, actual_size));
3607
3608 aside_position.map(|position| (aside, position))
3609 };
3610
3611 // Skip drawing if it doesn't fit anywhere.
3612 if let Some((aside, position)) = positioned_aside {
3613 window.defer_draw(aside, position, 1);
3614 }
3615 }
3616
3617 fn render_context_menu(
3618 &self,
3619 line_height: Pixels,
3620 height: Pixels,
3621 y_flipped: bool,
3622 window: &mut Window,
3623 cx: &mut App,
3624 ) -> Option<AnyElement> {
3625 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3626 self.editor.update(cx, |editor, cx| {
3627 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3628 })
3629 }
3630
3631 fn render_context_menu_aside(
3632 &self,
3633 max_size: Size<Pixels>,
3634
3635 cx: &mut App,
3636 ) -> Option<AnyElement> {
3637 if max_size.width < px(100.) || max_size.height < px(12.) {
3638 None
3639 } else {
3640 self.editor.update(cx, |editor, cx| {
3641 editor.render_context_menu_aside(&self.style, max_size, cx)
3642 })
3643 }
3644 }
3645
3646 #[allow(clippy::too_many_arguments)]
3647 fn layout_inline_completion_popover(
3648 &self,
3649 text_bounds: &Bounds<Pixels>,
3650 editor_snapshot: &EditorSnapshot,
3651 visible_row_range: Range<DisplayRow>,
3652 scroll_top: f32,
3653 scroll_bottom: f32,
3654 line_layouts: &[LineWithInvisibles],
3655 line_height: Pixels,
3656 scroll_pixel_position: gpui::Point<Pixels>,
3657 newest_selection_head: Option<DisplayPoint>,
3658 editor_width: Pixels,
3659 style: &EditorStyle,
3660 window: &mut Window,
3661 cx: &mut App,
3662 ) -> Option<AnyElement> {
3663 const PADDING_X: Pixels = Pixels(24.);
3664 const PADDING_Y: Pixels = Pixels(2.);
3665
3666 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3667
3668 match &active_inline_completion.completion {
3669 InlineCompletion::Move { target, .. } => {
3670 let previewing = false;
3671 let target_display_point = target.to_display_point(editor_snapshot);
3672 if target_display_point.row().as_f32() < scroll_top {
3673 let mut element = inline_completion_accept_indicator(
3674 "Jump to Edit",
3675 Some(IconName::ArrowUp),
3676 previewing,
3677 self.editor.focus_handle(cx),
3678 window,
3679 cx,
3680 );
3681 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3682 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3683 element.prepaint_at(text_bounds.origin + offset, window, cx);
3684 Some(element)
3685 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3686 let mut element = inline_completion_accept_indicator(
3687 "Jump to Edit",
3688 Some(IconName::ArrowDown),
3689 previewing,
3690 self.editor.focus_handle(cx),
3691 window,
3692 cx,
3693 );
3694 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3695 let offset = point(
3696 (text_bounds.size.width - size.width) / 2.,
3697 text_bounds.size.height - size.height - PADDING_Y,
3698 );
3699 element.prepaint_at(text_bounds.origin + offset, window, cx);
3700 Some(element)
3701 } else {
3702 let mut element = inline_completion_accept_indicator(
3703 "Jump to Edit",
3704 None,
3705 previewing,
3706 self.editor.focus_handle(cx),
3707 window,
3708 cx,
3709 );
3710
3711 let target_line_end = DisplayPoint::new(
3712 target_display_point.row(),
3713 editor_snapshot.line_len(target_display_point.row()),
3714 );
3715 let origin = self.editor.update(cx, |editor, _cx| {
3716 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3717 })?;
3718 element.prepaint_as_root(
3719 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3720 AvailableSpace::min_size(),
3721 window,
3722 cx,
3723 );
3724 Some(element)
3725 }
3726 }
3727 InlineCompletion::Edit {
3728 edits,
3729 edit_preview,
3730 display_mode,
3731 snapshot,
3732 } => {
3733 if self.editor.read(cx).has_active_completions_menu() {
3734 return None;
3735 }
3736
3737 let edit_start = edits
3738 .first()
3739 .unwrap()
3740 .0
3741 .start
3742 .to_display_point(editor_snapshot);
3743 let edit_end = edits
3744 .last()
3745 .unwrap()
3746 .0
3747 .end
3748 .to_display_point(editor_snapshot);
3749
3750 let is_visible = visible_row_range.contains(&edit_start.row())
3751 || visible_row_range.contains(&edit_end.row());
3752 if !is_visible {
3753 return None;
3754 }
3755
3756 match display_mode {
3757 EditDisplayMode::TabAccept(previewing) => {
3758 let previewing = *previewing;
3759 let range = &edits.first()?.0;
3760 let target_display_point = range.end.to_display_point(editor_snapshot);
3761
3762 let target_line_end = DisplayPoint::new(
3763 target_display_point.row(),
3764 editor_snapshot.line_len(target_display_point.row()),
3765 );
3766 let origin = self.editor.update(cx, |editor, _cx| {
3767 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3768 })?;
3769
3770 let mut element = inline_completion_accept_indicator(
3771 "Accept",
3772 None,
3773 previewing,
3774 self.editor.focus_handle(cx),
3775 window,
3776 cx,
3777 );
3778
3779 element.prepaint_as_root(
3780 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3781 AvailableSpace::min_size(),
3782 window,
3783 cx,
3784 );
3785
3786 return Some(element);
3787 }
3788 EditDisplayMode::Inline => return None,
3789 EditDisplayMode::DiffPopover => {}
3790 }
3791
3792 let highlighted_edits = crate::inline_completion_edit_text(
3793 &snapshot,
3794 edits,
3795 edit_preview.as_ref()?,
3796 false,
3797 cx,
3798 );
3799
3800 let line_count = highlighted_edits.text.lines().count();
3801
3802 let longest_row =
3803 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3804 let longest_line_width = if visible_row_range.contains(&longest_row) {
3805 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3806 } else {
3807 layout_line(
3808 longest_row,
3809 editor_snapshot,
3810 style,
3811 editor_width,
3812 |_| false,
3813 window,
3814 cx,
3815 )
3816 .width
3817 };
3818
3819 let styled_text = highlighted_edits.to_styled_text(&style.text);
3820
3821 let mut element = div()
3822 .bg(cx.theme().colors().editor_background)
3823 .border_1()
3824 .border_color(cx.theme().colors().border)
3825 .rounded_md()
3826 .child(styled_text)
3827 .into_any();
3828
3829 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3830 .extend(Edges {
3831 right: -Self::SCROLLBAR_WIDTH,
3832 ..Default::default()
3833 });
3834
3835 let x_after_longest =
3836 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3837
3838 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3839
3840 // Fully visible if it can be displayed within the window (allow overlapping other
3841 // panes). However, this is only allowed if the popover starts within text_bounds.
3842 let is_fully_visible = x_after_longest < text_bounds.right()
3843 && x_after_longest + element_bounds.width < viewport_bounds.right();
3844
3845 let origin = if is_fully_visible {
3846 point(
3847 x_after_longest,
3848 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3849 - scroll_pixel_position.y,
3850 )
3851 } else {
3852 // Avoid overlapping both the edited rows and the user's cursor.
3853 let target_above = DisplayRow(
3854 edit_start
3855 .row()
3856 .0
3857 .min(
3858 newest_selection_head
3859 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3860 )
3861 .saturating_sub(line_count as u32),
3862 );
3863 let mut row_target;
3864 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3865 row_target = target_above;
3866 } else {
3867 row_target = DisplayRow(
3868 edit_end.row().0.max(
3869 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3870 ) + 1,
3871 );
3872 if !visible_row_range.contains(&row_target) {
3873 // Not visible, so fallback on displaying immediately below the cursor.
3874 if let Some(cursor) = newest_selection_head {
3875 row_target = DisplayRow(cursor.row().0 + 1);
3876 } else {
3877 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3878 row_target = DisplayRow(0);
3879 }
3880 }
3881 };
3882
3883 text_bounds.origin
3884 + point(
3885 -scroll_pixel_position.x,
3886 row_target.as_f32() * line_height - scroll_pixel_position.y,
3887 )
3888 };
3889
3890 window.defer_draw(element, origin, 1);
3891
3892 // Do not return an element, since it will already be drawn due to defer_draw.
3893 None
3894 }
3895 }
3896 }
3897
3898 fn layout_mouse_context_menu(
3899 &self,
3900 editor_snapshot: &EditorSnapshot,
3901 visible_range: Range<DisplayRow>,
3902 content_origin: gpui::Point<Pixels>,
3903 window: &mut Window,
3904 cx: &mut App,
3905 ) -> Option<AnyElement> {
3906 let position = self.editor.update(cx, |editor, _cx| {
3907 let visible_start_point = editor.display_to_pixel_point(
3908 DisplayPoint::new(visible_range.start, 0),
3909 editor_snapshot,
3910 window,
3911 )?;
3912 let visible_end_point = editor.display_to_pixel_point(
3913 DisplayPoint::new(visible_range.end, 0),
3914 editor_snapshot,
3915 window,
3916 )?;
3917
3918 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3919 let (source_display_point, position) = match mouse_context_menu.position {
3920 MenuPosition::PinnedToScreen(point) => (None, point),
3921 MenuPosition::PinnedToEditor { source, offset } => {
3922 let source_display_point = source.to_display_point(editor_snapshot);
3923 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3924 let position = content_origin + source_point + offset;
3925 (Some(source_display_point), position)
3926 }
3927 };
3928
3929 let source_included = source_display_point.map_or(true, |source_display_point| {
3930 visible_range
3931 .to_inclusive()
3932 .contains(&source_display_point.row())
3933 });
3934 let position_included =
3935 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3936 if !source_included && !position_included {
3937 None
3938 } else {
3939 Some(position)
3940 }
3941 })?;
3942
3943 let mut element = self.editor.update(cx, |editor, _| {
3944 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3945 let context_menu = mouse_context_menu.context_menu.clone();
3946
3947 Some(
3948 deferred(
3949 anchored()
3950 .position(position)
3951 .child(context_menu)
3952 .anchor(Corner::TopLeft)
3953 .snap_to_window_with_margin(px(8.)),
3954 )
3955 .with_priority(1)
3956 .into_any(),
3957 )
3958 })?;
3959
3960 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3961 Some(element)
3962 }
3963
3964 #[allow(clippy::too_many_arguments)]
3965 fn layout_hover_popovers(
3966 &self,
3967 snapshot: &EditorSnapshot,
3968 hitbox: &Hitbox,
3969 text_hitbox: &Hitbox,
3970 visible_display_row_range: Range<DisplayRow>,
3971 content_origin: gpui::Point<Pixels>,
3972 scroll_pixel_position: gpui::Point<Pixels>,
3973 line_layouts: &[LineWithInvisibles],
3974 line_height: Pixels,
3975 em_width: Pixels,
3976 window: &mut Window,
3977 cx: &mut App,
3978 ) {
3979 struct MeasuredHoverPopover {
3980 element: AnyElement,
3981 size: Size<Pixels>,
3982 horizontal_offset: Pixels,
3983 }
3984
3985 let max_size = size(
3986 (120. * em_width) // Default size
3987 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3988 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3989 (16. * line_height) // Default size
3990 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3991 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3992 );
3993
3994 let hover_popovers = self.editor.update(cx, |editor, cx| {
3995 editor
3996 .hover_state
3997 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3998 });
3999 let Some((position, hover_popovers)) = hover_popovers else {
4000 return;
4001 };
4002
4003 // This is safe because we check on layout whether the required row is available
4004 let hovered_row_layout =
4005 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4006
4007 // Compute Hovered Point
4008 let x =
4009 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4010 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4011 let hovered_point = content_origin + point(x, y);
4012
4013 let mut overall_height = Pixels::ZERO;
4014 let mut measured_hover_popovers = Vec::new();
4015 for mut hover_popover in hover_popovers {
4016 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4017 let horizontal_offset =
4018 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4019
4020 overall_height += HOVER_POPOVER_GAP + size.height;
4021
4022 measured_hover_popovers.push(MeasuredHoverPopover {
4023 element: hover_popover,
4024 size,
4025 horizontal_offset,
4026 });
4027 }
4028 overall_height += HOVER_POPOVER_GAP;
4029
4030 fn draw_occluder(
4031 width: Pixels,
4032 origin: gpui::Point<Pixels>,
4033 window: &mut Window,
4034 cx: &mut App,
4035 ) {
4036 let mut occlusion = div()
4037 .size_full()
4038 .occlude()
4039 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4040 .into_any_element();
4041 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4042 window.defer_draw(occlusion, origin, 2);
4043 }
4044
4045 if hovered_point.y > overall_height {
4046 // There is enough space above. Render popovers above the hovered point
4047 let mut current_y = hovered_point.y;
4048 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4049 let size = popover.size;
4050 let popover_origin = point(
4051 hovered_point.x + popover.horizontal_offset,
4052 current_y - size.height,
4053 );
4054
4055 window.defer_draw(popover.element, popover_origin, 2);
4056 if position != itertools::Position::Last {
4057 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4058 draw_occluder(size.width, origin, window, cx);
4059 }
4060
4061 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4062 }
4063 } else {
4064 // There is not enough space above. Render popovers below the hovered point
4065 let mut current_y = hovered_point.y + line_height;
4066 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4067 let size = popover.size;
4068 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4069
4070 window.defer_draw(popover.element, popover_origin, 2);
4071 if position != itertools::Position::Last {
4072 let origin = point(popover_origin.x, popover_origin.y + size.height);
4073 draw_occluder(size.width, origin, window, cx);
4074 }
4075
4076 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4077 }
4078 }
4079 }
4080
4081 #[allow(clippy::too_many_arguments)]
4082 fn layout_diff_hunk_controls(
4083 &self,
4084 row_range: Range<DisplayRow>,
4085 row_infos: &[RowInfo],
4086 text_hitbox: &Hitbox,
4087 position_map: &PositionMap,
4088 newest_cursor_position: Option<DisplayPoint>,
4089 line_height: Pixels,
4090 scroll_pixel_position: gpui::Point<Pixels>,
4091 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4092 editor: Entity<Editor>,
4093 window: &mut Window,
4094 cx: &mut App,
4095 ) -> Vec<AnyElement> {
4096 let point_for_position = position_map.point_for_position(window.mouse_position());
4097
4098 let mut controls = vec![];
4099
4100 let active_positions = [
4101 Some(point_for_position.previous_valid),
4102 newest_cursor_position,
4103 ];
4104
4105 for (hunk, _) in display_hunks {
4106 if let DisplayDiffHunk::Unfolded {
4107 display_row_range,
4108 multi_buffer_range,
4109 status,
4110 ..
4111 } = &hunk
4112 {
4113 if display_row_range.start < row_range.start
4114 || display_row_range.start >= row_range.end
4115 {
4116 continue;
4117 }
4118 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4119 if row_infos[row_ix].diff_status.is_none() {
4120 continue;
4121 }
4122 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4123 && *status != DiffHunkStatus::Added
4124 {
4125 continue;
4126 }
4127 if active_positions
4128 .iter()
4129 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4130 {
4131 let y = display_row_range.start.as_f32() * line_height
4132 + text_hitbox.bounds.top()
4133 - scroll_pixel_position.y;
4134 let x = text_hitbox.bounds.right() - px(100.);
4135
4136 let mut element = diff_hunk_controls(
4137 display_row_range.start.0,
4138 multi_buffer_range.clone(),
4139 line_height,
4140 &editor,
4141 cx,
4142 );
4143 element.prepaint_as_root(
4144 gpui::Point::new(x, y),
4145 size(px(100.0), line_height).into(),
4146 window,
4147 cx,
4148 );
4149 controls.push(element);
4150 }
4151 }
4152 }
4153
4154 controls
4155 }
4156
4157 #[allow(clippy::too_many_arguments)]
4158 fn layout_signature_help(
4159 &self,
4160 hitbox: &Hitbox,
4161 content_origin: gpui::Point<Pixels>,
4162 scroll_pixel_position: gpui::Point<Pixels>,
4163 newest_selection_head: Option<DisplayPoint>,
4164 start_row: DisplayRow,
4165 line_layouts: &[LineWithInvisibles],
4166 line_height: Pixels,
4167 em_width: Pixels,
4168 window: &mut Window,
4169 cx: &mut App,
4170 ) {
4171 if !self.editor.focus_handle(cx).is_focused(window) {
4172 return;
4173 }
4174 let Some(newest_selection_head) = newest_selection_head else {
4175 return;
4176 };
4177 let selection_row = newest_selection_head.row();
4178 if selection_row < start_row {
4179 return;
4180 }
4181 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4182 else {
4183 return;
4184 };
4185
4186 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4187 - scroll_pixel_position.x
4188 + content_origin.x;
4189 let start_y =
4190 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4191
4192 let max_size = size(
4193 (120. * em_width) // Default size
4194 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4195 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4196 (16. * line_height) // Default size
4197 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4198 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4199 );
4200
4201 let maybe_element = self.editor.update(cx, |editor, cx| {
4202 if let Some(popover) = editor.signature_help_state.popover_mut() {
4203 let element = popover.render(
4204 &self.style,
4205 max_size,
4206 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4207 cx,
4208 );
4209 Some(element)
4210 } else {
4211 None
4212 }
4213 });
4214 if let Some(mut element) = maybe_element {
4215 let window_size = window.viewport_size();
4216 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4217 let mut point = point(start_x, start_y - size.height);
4218
4219 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4220 if point.x + size.width >= window_size.width {
4221 point.x = window_size.width - size.width;
4222 }
4223
4224 window.defer_draw(element, point, 1)
4225 }
4226 }
4227
4228 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4229 window.paint_layer(layout.hitbox.bounds, |window| {
4230 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4231 let gutter_bg = cx.theme().colors().editor_gutter_background;
4232 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4233 window.paint_quad(fill(
4234 layout.position_map.text_hitbox.bounds,
4235 self.style.background,
4236 ));
4237
4238 if let EditorMode::Full = layout.mode {
4239 let mut active_rows = layout.active_rows.iter().peekable();
4240 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4241 let mut end_row = start_row.0;
4242 while active_rows
4243 .peek()
4244 .map_or(false, |(active_row, has_selection)| {
4245 active_row.0 == end_row + 1
4246 && *has_selection == contains_non_empty_selection
4247 })
4248 {
4249 active_rows.next().unwrap();
4250 end_row += 1;
4251 }
4252
4253 if !contains_non_empty_selection {
4254 let highlight_h_range =
4255 match layout.position_map.snapshot.current_line_highlight {
4256 CurrentLineHighlight::Gutter => Some(Range {
4257 start: layout.hitbox.left(),
4258 end: layout.gutter_hitbox.right(),
4259 }),
4260 CurrentLineHighlight::Line => Some(Range {
4261 start: layout.position_map.text_hitbox.bounds.left(),
4262 end: layout.position_map.text_hitbox.bounds.right(),
4263 }),
4264 CurrentLineHighlight::All => Some(Range {
4265 start: layout.hitbox.left(),
4266 end: layout.hitbox.right(),
4267 }),
4268 CurrentLineHighlight::None => None,
4269 };
4270 if let Some(range) = highlight_h_range {
4271 let active_line_bg = cx.theme().colors().editor_active_line_background;
4272 let bounds = Bounds {
4273 origin: point(
4274 range.start,
4275 layout.hitbox.origin.y
4276 + (start_row.as_f32() - scroll_top)
4277 * layout.position_map.line_height,
4278 ),
4279 size: size(
4280 range.end - range.start,
4281 layout.position_map.line_height
4282 * (end_row - start_row.0 + 1) as f32,
4283 ),
4284 };
4285 window.paint_quad(fill(bounds, active_line_bg));
4286 }
4287 }
4288 }
4289
4290 let mut paint_highlight =
4291 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4292 let origin = point(
4293 layout.hitbox.origin.x,
4294 layout.hitbox.origin.y
4295 + (highlight_row_start.as_f32() - scroll_top)
4296 * layout.position_map.line_height,
4297 );
4298 let size = size(
4299 layout.hitbox.size.width,
4300 layout.position_map.line_height
4301 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4302 );
4303 window.paint_quad(fill(Bounds { origin, size }, color));
4304 };
4305
4306 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4307 for (&new_row, &new_color) in &layout.highlighted_rows {
4308 match &mut current_paint {
4309 Some((current_color, current_range)) => {
4310 let current_color = *current_color;
4311 let new_range_started = current_color != new_color
4312 || current_range.end.next_row() != new_row;
4313 if new_range_started {
4314 paint_highlight(
4315 current_range.start,
4316 current_range.end,
4317 current_color,
4318 );
4319 current_paint = Some((new_color, new_row..new_row));
4320 continue;
4321 } else {
4322 current_range.end = current_range.end.next_row();
4323 }
4324 }
4325 None => current_paint = Some((new_color, new_row..new_row)),
4326 };
4327 }
4328 if let Some((color, range)) = current_paint {
4329 paint_highlight(range.start, range.end, color);
4330 }
4331
4332 let scroll_left =
4333 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4334
4335 for (wrap_position, active) in layout.wrap_guides.iter() {
4336 let x = (layout.position_map.text_hitbox.origin.x
4337 + *wrap_position
4338 + layout.position_map.em_width / 2.)
4339 - scroll_left;
4340
4341 let show_scrollbars = {
4342 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4343
4344 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4345 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4346 };
4347
4348 if x < layout.position_map.text_hitbox.origin.x
4349 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4350 {
4351 continue;
4352 }
4353
4354 let color = if *active {
4355 cx.theme().colors().editor_active_wrap_guide
4356 } else {
4357 cx.theme().colors().editor_wrap_guide
4358 };
4359 window.paint_quad(fill(
4360 Bounds {
4361 origin: point(x, layout.position_map.text_hitbox.origin.y),
4362 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4363 },
4364 color,
4365 ));
4366 }
4367 }
4368 })
4369 }
4370
4371 fn paint_indent_guides(
4372 &mut self,
4373 layout: &mut EditorLayout,
4374 window: &mut Window,
4375 cx: &mut App,
4376 ) {
4377 let Some(indent_guides) = &layout.indent_guides else {
4378 return;
4379 };
4380
4381 let faded_color = |color: Hsla, alpha: f32| {
4382 let mut faded = color;
4383 faded.a = alpha;
4384 faded
4385 };
4386
4387 for indent_guide in indent_guides {
4388 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4389 let settings = indent_guide.settings;
4390
4391 // TODO fixed for now, expose them through themes later
4392 const INDENT_AWARE_ALPHA: f32 = 0.2;
4393 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4394 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4395 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4396
4397 let line_color = match (settings.coloring, indent_guide.active) {
4398 (IndentGuideColoring::Disabled, _) => None,
4399 (IndentGuideColoring::Fixed, false) => {
4400 Some(cx.theme().colors().editor_indent_guide)
4401 }
4402 (IndentGuideColoring::Fixed, true) => {
4403 Some(cx.theme().colors().editor_indent_guide_active)
4404 }
4405 (IndentGuideColoring::IndentAware, false) => {
4406 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4407 }
4408 (IndentGuideColoring::IndentAware, true) => {
4409 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4410 }
4411 };
4412
4413 let background_color = match (settings.background_coloring, indent_guide.active) {
4414 (IndentGuideBackgroundColoring::Disabled, _) => None,
4415 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4416 indent_accent_colors,
4417 INDENT_AWARE_BACKGROUND_ALPHA,
4418 )),
4419 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4420 indent_accent_colors,
4421 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4422 )),
4423 };
4424
4425 let requested_line_width = if indent_guide.active {
4426 settings.active_line_width
4427 } else {
4428 settings.line_width
4429 }
4430 .clamp(1, 10);
4431 let mut line_indicator_width = 0.;
4432 if let Some(color) = line_color {
4433 window.paint_quad(fill(
4434 Bounds {
4435 origin: indent_guide.origin,
4436 size: size(px(requested_line_width as f32), indent_guide.length),
4437 },
4438 color,
4439 ));
4440 line_indicator_width = requested_line_width as f32;
4441 }
4442
4443 if let Some(color) = background_color {
4444 let width = indent_guide.single_indent_width - px(line_indicator_width);
4445 window.paint_quad(fill(
4446 Bounds {
4447 origin: point(
4448 indent_guide.origin.x + px(line_indicator_width),
4449 indent_guide.origin.y,
4450 ),
4451 size: size(width, indent_guide.length),
4452 },
4453 color,
4454 ));
4455 }
4456 }
4457 }
4458
4459 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4460 let is_singleton = self.editor.read(cx).is_singleton(cx);
4461
4462 let line_height = layout.position_map.line_height;
4463 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4464
4465 for LineNumberLayout {
4466 shaped_line,
4467 hitbox,
4468 display_row,
4469 } in layout.line_numbers.values()
4470 {
4471 let Some(hitbox) = hitbox else {
4472 continue;
4473 };
4474
4475 let is_active = layout.active_rows.contains_key(&display_row);
4476
4477 let color = if is_active {
4478 cx.theme().colors().editor_active_line_number
4479 } else if !is_singleton && hitbox.is_hovered(window) {
4480 cx.theme().colors().editor_hover_line_number
4481 } else {
4482 cx.theme().colors().editor_line_number
4483 };
4484
4485 let Some(line) = self
4486 .shape_line_number(shaped_line.text.clone(), color, window)
4487 .log_err()
4488 else {
4489 continue;
4490 };
4491 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4492 continue;
4493 };
4494 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4495 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4496 if is_singleton {
4497 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4498 } else {
4499 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4500 }
4501 }
4502 }
4503
4504 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4505 if layout.display_hunks.is_empty() {
4506 return;
4507 }
4508
4509 let line_height = layout.position_map.line_height;
4510 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4511 for (hunk, hitbox) in &layout.display_hunks {
4512 let hunk_to_paint = match hunk {
4513 DisplayDiffHunk::Folded { .. } => {
4514 let hunk_bounds = Self::diff_hunk_bounds(
4515 &layout.position_map.snapshot,
4516 line_height,
4517 layout.gutter_hitbox.bounds,
4518 hunk,
4519 );
4520 Some((
4521 hunk_bounds,
4522 cx.theme().status().modified,
4523 Corners::all(px(0.)),
4524 ))
4525 }
4526 DisplayDiffHunk::Unfolded {
4527 status,
4528 display_row_range,
4529 ..
4530 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4531 DiffHunkStatus::Added => (
4532 hunk_hitbox.bounds,
4533 cx.theme().status().created,
4534 Corners::all(px(0.)),
4535 ),
4536 DiffHunkStatus::Modified => (
4537 hunk_hitbox.bounds,
4538 cx.theme().status().modified,
4539 Corners::all(px(0.)),
4540 ),
4541 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4542 hunk_hitbox.bounds,
4543 cx.theme().status().deleted,
4544 Corners::all(px(0.)),
4545 ),
4546 DiffHunkStatus::Removed => (
4547 Bounds::new(
4548 point(
4549 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4550 hunk_hitbox.origin.y,
4551 ),
4552 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4553 ),
4554 cx.theme().status().deleted,
4555 Corners::all(1. * line_height),
4556 ),
4557 }),
4558 };
4559
4560 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4561 window.paint_quad(quad(
4562 hunk_bounds,
4563 corner_radii,
4564 background_color,
4565 Edges::default(),
4566 transparent_black(),
4567 ));
4568 }
4569 }
4570 });
4571 }
4572
4573 fn diff_hunk_bounds(
4574 snapshot: &EditorSnapshot,
4575 line_height: Pixels,
4576 gutter_bounds: Bounds<Pixels>,
4577 hunk: &DisplayDiffHunk,
4578 ) -> Bounds<Pixels> {
4579 let scroll_position = snapshot.scroll_position();
4580 let scroll_top = scroll_position.y * line_height;
4581 let gutter_strip_width = (0.275 * line_height).floor();
4582
4583 match hunk {
4584 DisplayDiffHunk::Folded { display_row, .. } => {
4585 let start_y = display_row.as_f32() * line_height - scroll_top;
4586 let end_y = start_y + line_height;
4587 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4588 let highlight_size = size(gutter_strip_width, end_y - start_y);
4589 Bounds::new(highlight_origin, highlight_size)
4590 }
4591 DisplayDiffHunk::Unfolded {
4592 display_row_range,
4593 status,
4594 ..
4595 } => {
4596 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4597 let row = display_row_range.start;
4598
4599 let offset = line_height / 2.;
4600 let start_y = row.as_f32() * line_height - offset - scroll_top;
4601 let end_y = start_y + line_height;
4602
4603 let width = (0.35 * line_height).floor();
4604 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4605 let highlight_size = size(width, end_y - start_y);
4606 Bounds::new(highlight_origin, highlight_size)
4607 } else {
4608 let start_row = display_row_range.start;
4609 let end_row = display_row_range.end;
4610 // If we're in a multibuffer, row range span might include an
4611 // excerpt header, so if we were to draw the marker straight away,
4612 // the hunk might include the rows of that header.
4613 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4614 // Instead, we simply check whether the range we're dealing with includes
4615 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4616 let end_row_in_current_excerpt = snapshot
4617 .blocks_in_range(start_row..end_row)
4618 .find_map(|(start_row, block)| {
4619 if matches!(block, Block::ExcerptBoundary { .. }) {
4620 Some(start_row)
4621 } else {
4622 None
4623 }
4624 })
4625 .unwrap_or(end_row);
4626
4627 let start_y = start_row.as_f32() * line_height - scroll_top;
4628 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4629
4630 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4631 let highlight_size = size(gutter_strip_width, end_y - start_y);
4632 Bounds::new(highlight_origin, highlight_size)
4633 }
4634 }
4635 }
4636 }
4637
4638 fn paint_gutter_indicators(
4639 &self,
4640 layout: &mut EditorLayout,
4641 window: &mut Window,
4642 cx: &mut App,
4643 ) {
4644 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4645 window.with_element_namespace("crease_toggles", |window| {
4646 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4647 crease_toggle.paint(window, cx);
4648 }
4649 });
4650
4651 for test_indicator in layout.test_indicators.iter_mut() {
4652 test_indicator.paint(window, cx);
4653 }
4654
4655 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4656 indicator.paint(window, cx);
4657 }
4658 });
4659 }
4660
4661 fn paint_gutter_highlights(
4662 &self,
4663 layout: &mut EditorLayout,
4664 window: &mut Window,
4665 cx: &mut App,
4666 ) {
4667 for (_, hunk_hitbox) in &layout.display_hunks {
4668 if let Some(hunk_hitbox) = hunk_hitbox {
4669 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4670 }
4671 }
4672
4673 let show_git_gutter = layout
4674 .position_map
4675 .snapshot
4676 .show_git_diff_gutter
4677 .unwrap_or_else(|| {
4678 matches!(
4679 ProjectSettings::get_global(cx).git.git_gutter,
4680 Some(GitGutterSetting::TrackedFiles)
4681 )
4682 });
4683 if show_git_gutter {
4684 Self::paint_diff_hunks(layout, window, cx)
4685 }
4686
4687 let highlight_width = 0.275 * layout.position_map.line_height;
4688 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4689 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4690 for (range, color) in &layout.highlighted_gutter_ranges {
4691 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4692 layout.visible_display_row_range.start - DisplayRow(1)
4693 } else {
4694 range.start.row()
4695 };
4696 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4697 layout.visible_display_row_range.end + DisplayRow(1)
4698 } else {
4699 range.end.row()
4700 };
4701
4702 let start_y = layout.gutter_hitbox.top()
4703 + start_row.0 as f32 * layout.position_map.line_height
4704 - layout.position_map.scroll_pixel_position.y;
4705 let end_y = layout.gutter_hitbox.top()
4706 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4707 - layout.position_map.scroll_pixel_position.y;
4708 let bounds = Bounds::from_corners(
4709 point(layout.gutter_hitbox.left(), start_y),
4710 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4711 );
4712 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4713 }
4714 });
4715 }
4716
4717 fn paint_blamed_display_rows(
4718 &self,
4719 layout: &mut EditorLayout,
4720 window: &mut Window,
4721 cx: &mut App,
4722 ) {
4723 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4724 return;
4725 };
4726
4727 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4728 for mut blame_element in blamed_display_rows.into_iter() {
4729 blame_element.paint(window, cx);
4730 }
4731 })
4732 }
4733
4734 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4735 window.with_content_mask(
4736 Some(ContentMask {
4737 bounds: layout.position_map.text_hitbox.bounds,
4738 }),
4739 |window| {
4740 let cursor_style = if self
4741 .editor
4742 .read(cx)
4743 .hovered_link_state
4744 .as_ref()
4745 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4746 {
4747 CursorStyle::PointingHand
4748 } else {
4749 CursorStyle::IBeam
4750 };
4751 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4752
4753 let invisible_display_ranges = self.paint_highlights(layout, window);
4754 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4755 self.paint_redactions(layout, window);
4756 self.paint_cursors(layout, window, cx);
4757 self.paint_inline_blame(layout, window, cx);
4758 self.paint_diff_hunk_controls(layout, window, cx);
4759 window.with_element_namespace("crease_trailers", |window| {
4760 for trailer in layout.crease_trailers.iter_mut().flatten() {
4761 trailer.element.paint(window, cx);
4762 }
4763 });
4764 },
4765 )
4766 }
4767
4768 fn paint_highlights(
4769 &mut self,
4770 layout: &mut EditorLayout,
4771 window: &mut Window,
4772 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4773 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4774 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4775 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4776 for (range, color) in &layout.highlighted_ranges {
4777 self.paint_highlighted_range(
4778 range.clone(),
4779 *color,
4780 Pixels::ZERO,
4781 line_end_overshoot,
4782 layout,
4783 window,
4784 );
4785 }
4786
4787 let corner_radius = 0.15 * layout.position_map.line_height;
4788
4789 for (player_color, selections) in &layout.selections {
4790 for selection in selections.iter() {
4791 self.paint_highlighted_range(
4792 selection.range.clone(),
4793 player_color.selection,
4794 corner_radius,
4795 corner_radius * 2.,
4796 layout,
4797 window,
4798 );
4799
4800 if selection.is_local && !selection.range.is_empty() {
4801 invisible_display_ranges.push(selection.range.clone());
4802 }
4803 }
4804 }
4805 invisible_display_ranges
4806 })
4807 }
4808
4809 fn paint_lines(
4810 &mut self,
4811 invisible_display_ranges: &[Range<DisplayPoint>],
4812 layout: &mut EditorLayout,
4813 window: &mut Window,
4814 cx: &mut App,
4815 ) {
4816 let whitespace_setting = self
4817 .editor
4818 .read(cx)
4819 .buffer
4820 .read(cx)
4821 .settings_at(0, cx)
4822 .show_whitespaces;
4823
4824 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4825 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4826 line_with_invisibles.draw(
4827 layout,
4828 row,
4829 layout.content_origin,
4830 whitespace_setting,
4831 invisible_display_ranges,
4832 window,
4833 cx,
4834 )
4835 }
4836
4837 for line_element in &mut layout.line_elements {
4838 line_element.paint(window, cx);
4839 }
4840 }
4841
4842 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4843 if layout.redacted_ranges.is_empty() {
4844 return;
4845 }
4846
4847 let line_end_overshoot = layout.line_end_overshoot();
4848
4849 // A softer than perfect black
4850 let redaction_color = gpui::rgb(0x0e1111);
4851
4852 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4853 for range in layout.redacted_ranges.iter() {
4854 self.paint_highlighted_range(
4855 range.clone(),
4856 redaction_color.into(),
4857 Pixels::ZERO,
4858 line_end_overshoot,
4859 layout,
4860 window,
4861 );
4862 }
4863 });
4864 }
4865
4866 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4867 for cursor in &mut layout.visible_cursors {
4868 cursor.paint(layout.content_origin, window, cx);
4869 }
4870 }
4871
4872 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4873 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4874
4875 if let Some(scrollbar_layout) = scrollbar_x {
4876 let hitbox = scrollbar_layout.hitbox.clone();
4877 let text_unit_size = scrollbar_layout.text_unit_size;
4878 let visible_range = scrollbar_layout.visible_range.clone();
4879 let thumb_bounds = scrollbar_layout.thumb_bounds();
4880
4881 if scrollbar_layout.visible {
4882 window.paint_layer(hitbox.bounds, |window| {
4883 window.paint_quad(quad(
4884 hitbox.bounds,
4885 Corners::default(),
4886 cx.theme().colors().scrollbar_track_background,
4887 Edges {
4888 top: Pixels::ZERO,
4889 right: Pixels::ZERO,
4890 bottom: Pixels::ZERO,
4891 left: Pixels::ZERO,
4892 },
4893 cx.theme().colors().scrollbar_track_border,
4894 ));
4895
4896 window.paint_quad(quad(
4897 thumb_bounds,
4898 Corners::default(),
4899 cx.theme().colors().scrollbar_thumb_background,
4900 Edges {
4901 top: Pixels::ZERO,
4902 right: Pixels::ZERO,
4903 bottom: Pixels::ZERO,
4904 left: ScrollbarLayout::BORDER_WIDTH,
4905 },
4906 cx.theme().colors().scrollbar_thumb_border,
4907 ));
4908 })
4909 }
4910
4911 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4912
4913 window.on_mouse_event({
4914 let editor = self.editor.clone();
4915
4916 // there may be a way to avoid this clone
4917 let hitbox = hitbox.clone();
4918
4919 let mut mouse_position = window.mouse_position();
4920 move |event: &MouseMoveEvent, phase, window, cx| {
4921 if phase == DispatchPhase::Capture {
4922 return;
4923 }
4924
4925 editor.update(cx, |editor, cx| {
4926 if event.pressed_button == Some(MouseButton::Left)
4927 && editor
4928 .scroll_manager
4929 .is_dragging_scrollbar(Axis::Horizontal)
4930 {
4931 let x = mouse_position.x;
4932 let new_x = event.position.x;
4933 if (hitbox.left()..hitbox.right()).contains(&x) {
4934 let mut position = editor.scroll_position(cx);
4935
4936 position.x += (new_x - x) / text_unit_size;
4937 if position.x < 0.0 {
4938 position.x = 0.0;
4939 }
4940 editor.set_scroll_position(position, window, cx);
4941 }
4942
4943 cx.stop_propagation();
4944 } else {
4945 editor.scroll_manager.set_is_dragging_scrollbar(
4946 Axis::Horizontal,
4947 false,
4948 cx,
4949 );
4950
4951 if hitbox.is_hovered(window) {
4952 editor.scroll_manager.show_scrollbar(window, cx);
4953 }
4954 }
4955 mouse_position = event.position;
4956 })
4957 }
4958 });
4959
4960 if self
4961 .editor
4962 .read(cx)
4963 .scroll_manager
4964 .is_dragging_scrollbar(Axis::Horizontal)
4965 {
4966 window.on_mouse_event({
4967 let editor = self.editor.clone();
4968 move |_: &MouseUpEvent, phase, _, cx| {
4969 if phase == DispatchPhase::Capture {
4970 return;
4971 }
4972
4973 editor.update(cx, |editor, cx| {
4974 editor.scroll_manager.set_is_dragging_scrollbar(
4975 Axis::Horizontal,
4976 false,
4977 cx,
4978 );
4979 cx.stop_propagation();
4980 });
4981 }
4982 });
4983 } else {
4984 window.on_mouse_event({
4985 let editor = self.editor.clone();
4986
4987 move |event: &MouseDownEvent, phase, window, cx| {
4988 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4989 return;
4990 }
4991
4992 editor.update(cx, |editor, cx| {
4993 editor.scroll_manager.set_is_dragging_scrollbar(
4994 Axis::Horizontal,
4995 true,
4996 cx,
4997 );
4998
4999 let x = event.position.x;
5000
5001 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5002 let center_row =
5003 ((x - hitbox.left()) / text_unit_size).round() as u32;
5004 let top_row = center_row.saturating_sub(
5005 (visible_range.end - visible_range.start) as u32 / 2,
5006 );
5007
5008 let mut position = editor.scroll_position(cx);
5009 position.x = top_row as f32;
5010
5011 editor.set_scroll_position(position, window, cx);
5012 } else {
5013 editor.scroll_manager.show_scrollbar(window, cx);
5014 }
5015
5016 cx.stop_propagation();
5017 });
5018 }
5019 });
5020 }
5021 }
5022
5023 if let Some(scrollbar_layout) = scrollbar_y {
5024 let hitbox = scrollbar_layout.hitbox.clone();
5025 let text_unit_size = scrollbar_layout.text_unit_size;
5026 let visible_range = scrollbar_layout.visible_range.clone();
5027 let thumb_bounds = scrollbar_layout.thumb_bounds();
5028
5029 if scrollbar_layout.visible {
5030 window.paint_layer(hitbox.bounds, |window| {
5031 window.paint_quad(quad(
5032 hitbox.bounds,
5033 Corners::default(),
5034 cx.theme().colors().scrollbar_track_background,
5035 Edges {
5036 top: Pixels::ZERO,
5037 right: Pixels::ZERO,
5038 bottom: Pixels::ZERO,
5039 left: ScrollbarLayout::BORDER_WIDTH,
5040 },
5041 cx.theme().colors().scrollbar_track_border,
5042 ));
5043
5044 let fast_markers =
5045 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5046 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5047 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5048
5049 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5050 for marker in markers.iter().chain(&fast_markers) {
5051 let mut marker = marker.clone();
5052 marker.bounds.origin += hitbox.origin;
5053 window.paint_quad(marker);
5054 }
5055
5056 window.paint_quad(quad(
5057 thumb_bounds,
5058 Corners::default(),
5059 cx.theme().colors().scrollbar_thumb_background,
5060 Edges {
5061 top: Pixels::ZERO,
5062 right: Pixels::ZERO,
5063 bottom: Pixels::ZERO,
5064 left: ScrollbarLayout::BORDER_WIDTH,
5065 },
5066 cx.theme().colors().scrollbar_thumb_border,
5067 ));
5068 });
5069 }
5070
5071 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5072
5073 window.on_mouse_event({
5074 let editor = self.editor.clone();
5075
5076 let hitbox = hitbox.clone();
5077
5078 let mut mouse_position = window.mouse_position();
5079 move |event: &MouseMoveEvent, phase, window, cx| {
5080 if phase == DispatchPhase::Capture {
5081 return;
5082 }
5083
5084 editor.update(cx, |editor, cx| {
5085 if event.pressed_button == Some(MouseButton::Left)
5086 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5087 {
5088 let y = mouse_position.y;
5089 let new_y = event.position.y;
5090 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5091 let mut position = editor.scroll_position(cx);
5092 position.y += (new_y - y) / text_unit_size;
5093 if position.y < 0.0 {
5094 position.y = 0.0;
5095 }
5096 editor.set_scroll_position(position, window, cx);
5097 }
5098 } else {
5099 editor.scroll_manager.set_is_dragging_scrollbar(
5100 Axis::Vertical,
5101 false,
5102 cx,
5103 );
5104
5105 if hitbox.is_hovered(window) {
5106 editor.scroll_manager.show_scrollbar(window, cx);
5107 }
5108 }
5109 mouse_position = event.position;
5110 })
5111 }
5112 });
5113
5114 if self
5115 .editor
5116 .read(cx)
5117 .scroll_manager
5118 .is_dragging_scrollbar(Axis::Vertical)
5119 {
5120 window.on_mouse_event({
5121 let editor = self.editor.clone();
5122 move |_: &MouseUpEvent, phase, _, cx| {
5123 if phase == DispatchPhase::Capture {
5124 return;
5125 }
5126
5127 editor.update(cx, |editor, cx| {
5128 editor.scroll_manager.set_is_dragging_scrollbar(
5129 Axis::Vertical,
5130 false,
5131 cx,
5132 );
5133 cx.stop_propagation();
5134 });
5135 }
5136 });
5137 } else {
5138 window.on_mouse_event({
5139 let editor = self.editor.clone();
5140
5141 move |event: &MouseDownEvent, phase, window, cx| {
5142 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5143 return;
5144 }
5145
5146 editor.update(cx, |editor, cx| {
5147 editor.scroll_manager.set_is_dragging_scrollbar(
5148 Axis::Vertical,
5149 true,
5150 cx,
5151 );
5152
5153 let y = event.position.y;
5154 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5155 let center_row =
5156 ((y - hitbox.top()) / text_unit_size).round() as u32;
5157 let top_row = center_row.saturating_sub(
5158 (visible_range.end - visible_range.start) as u32 / 2,
5159 );
5160 let mut position = editor.scroll_position(cx);
5161 position.y = top_row as f32;
5162 editor.set_scroll_position(position, window, cx);
5163 } else {
5164 editor.scroll_manager.show_scrollbar(window, cx);
5165 }
5166
5167 cx.stop_propagation();
5168 });
5169 }
5170 });
5171 }
5172 }
5173 }
5174
5175 fn collect_fast_scrollbar_markers(
5176 &self,
5177 layout: &EditorLayout,
5178 scrollbar_layout: &ScrollbarLayout,
5179 cx: &mut App,
5180 ) -> Vec<PaintQuad> {
5181 const LIMIT: usize = 100;
5182 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5183 return vec![];
5184 }
5185 let cursor_ranges = layout
5186 .cursors
5187 .iter()
5188 .map(|(point, color)| ColoredRange {
5189 start: point.row(),
5190 end: point.row(),
5191 color: *color,
5192 })
5193 .collect_vec();
5194 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5195 }
5196
5197 fn refresh_slow_scrollbar_markers(
5198 &self,
5199 layout: &EditorLayout,
5200 scrollbar_layout: &ScrollbarLayout,
5201 window: &mut Window,
5202 cx: &mut App,
5203 ) {
5204 self.editor.update(cx, |editor, cx| {
5205 if !editor.is_singleton(cx)
5206 || !editor
5207 .scrollbar_marker_state
5208 .should_refresh(scrollbar_layout.hitbox.size)
5209 {
5210 return;
5211 }
5212
5213 let scrollbar_layout = scrollbar_layout.clone();
5214 let background_highlights = editor.background_highlights.clone();
5215 let snapshot = layout.position_map.snapshot.clone();
5216 let theme = cx.theme().clone();
5217 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5218
5219 editor.scrollbar_marker_state.dirty = false;
5220 editor.scrollbar_marker_state.pending_refresh =
5221 Some(cx.spawn_in(window, |editor, mut cx| async move {
5222 let scrollbar_size = scrollbar_layout.hitbox.size;
5223 let scrollbar_markers = cx
5224 .background_executor()
5225 .spawn(async move {
5226 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5227 let mut marker_quads = Vec::new();
5228 if scrollbar_settings.git_diff {
5229 let marker_row_ranges =
5230 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5231 let start_display_row =
5232 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5233 .to_display_point(&snapshot.display_snapshot)
5234 .row();
5235 let mut end_display_row =
5236 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5237 .to_display_point(&snapshot.display_snapshot)
5238 .row();
5239 if end_display_row != start_display_row {
5240 end_display_row.0 -= 1;
5241 }
5242 let color = match &hunk.status() {
5243 DiffHunkStatus::Added => theme.status().created,
5244 DiffHunkStatus::Modified => theme.status().modified,
5245 DiffHunkStatus::Removed => theme.status().deleted,
5246 };
5247 ColoredRange {
5248 start: start_display_row,
5249 end: end_display_row,
5250 color,
5251 }
5252 });
5253
5254 marker_quads.extend(
5255 scrollbar_layout
5256 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5257 );
5258 }
5259
5260 for (background_highlight_id, (_, background_ranges)) in
5261 background_highlights.iter()
5262 {
5263 let is_search_highlights = *background_highlight_id
5264 == TypeId::of::<BufferSearchHighlights>();
5265 let is_symbol_occurrences = *background_highlight_id
5266 == TypeId::of::<DocumentHighlightRead>()
5267 || *background_highlight_id
5268 == TypeId::of::<DocumentHighlightWrite>();
5269 if (is_search_highlights && scrollbar_settings.search_results)
5270 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5271 {
5272 let mut color = theme.status().info;
5273 if is_symbol_occurrences {
5274 color.fade_out(0.5);
5275 }
5276 let marker_row_ranges = background_ranges.iter().map(|range| {
5277 let display_start = range
5278 .start
5279 .to_display_point(&snapshot.display_snapshot);
5280 let display_end =
5281 range.end.to_display_point(&snapshot.display_snapshot);
5282 ColoredRange {
5283 start: display_start.row(),
5284 end: display_end.row(),
5285 color,
5286 }
5287 });
5288 marker_quads.extend(
5289 scrollbar_layout
5290 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5291 );
5292 }
5293 }
5294
5295 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5296 let diagnostics = snapshot
5297 .buffer_snapshot
5298 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
5299 // Don't show diagnostics the user doesn't care about
5300 .filter(|diagnostic| {
5301 match (
5302 scrollbar_settings.diagnostics,
5303 diagnostic.diagnostic.severity,
5304 ) {
5305 (ScrollbarDiagnostics::All, _) => true,
5306 (
5307 ScrollbarDiagnostics::Error,
5308 DiagnosticSeverity::ERROR,
5309 ) => true,
5310 (
5311 ScrollbarDiagnostics::Warning,
5312 DiagnosticSeverity::ERROR
5313 | DiagnosticSeverity::WARNING,
5314 ) => true,
5315 (
5316 ScrollbarDiagnostics::Information,
5317 DiagnosticSeverity::ERROR
5318 | DiagnosticSeverity::WARNING
5319 | DiagnosticSeverity::INFORMATION,
5320 ) => true,
5321 (_, _) => false,
5322 }
5323 })
5324 // We want to sort by severity, in order to paint the most severe diagnostics last.
5325 .sorted_by_key(|diagnostic| {
5326 std::cmp::Reverse(diagnostic.diagnostic.severity)
5327 });
5328
5329 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5330 let start_display = diagnostic
5331 .range
5332 .start
5333 .to_display_point(&snapshot.display_snapshot);
5334 let end_display = diagnostic
5335 .range
5336 .end
5337 .to_display_point(&snapshot.display_snapshot);
5338 let color = match diagnostic.diagnostic.severity {
5339 DiagnosticSeverity::ERROR => theme.status().error,
5340 DiagnosticSeverity::WARNING => theme.status().warning,
5341 DiagnosticSeverity::INFORMATION => theme.status().info,
5342 _ => theme.status().hint,
5343 };
5344 ColoredRange {
5345 start: start_display.row(),
5346 end: end_display.row(),
5347 color,
5348 }
5349 });
5350 marker_quads.extend(
5351 scrollbar_layout
5352 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5353 );
5354 }
5355
5356 Arc::from(marker_quads)
5357 })
5358 .await;
5359
5360 editor.update(&mut cx, |editor, cx| {
5361 editor.scrollbar_marker_state.markers = scrollbar_markers;
5362 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5363 editor.scrollbar_marker_state.pending_refresh = None;
5364 cx.notify();
5365 })?;
5366
5367 Ok(())
5368 }));
5369 });
5370 }
5371
5372 #[allow(clippy::too_many_arguments)]
5373 fn paint_highlighted_range(
5374 &self,
5375 range: Range<DisplayPoint>,
5376 color: Hsla,
5377 corner_radius: Pixels,
5378 line_end_overshoot: Pixels,
5379 layout: &EditorLayout,
5380 window: &mut Window,
5381 ) {
5382 let start_row = layout.visible_display_row_range.start;
5383 let end_row = layout.visible_display_row_range.end;
5384 if range.start != range.end {
5385 let row_range = if range.end.column() == 0 {
5386 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5387 } else {
5388 cmp::max(range.start.row(), start_row)
5389 ..cmp::min(range.end.row().next_row(), end_row)
5390 };
5391
5392 let highlighted_range = HighlightedRange {
5393 color,
5394 line_height: layout.position_map.line_height,
5395 corner_radius,
5396 start_y: layout.content_origin.y
5397 + row_range.start.as_f32() * layout.position_map.line_height
5398 - layout.position_map.scroll_pixel_position.y,
5399 lines: row_range
5400 .iter_rows()
5401 .map(|row| {
5402 let line_layout =
5403 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5404 HighlightedRangeLine {
5405 start_x: if row == range.start.row() {
5406 layout.content_origin.x
5407 + line_layout.x_for_index(range.start.column() as usize)
5408 - layout.position_map.scroll_pixel_position.x
5409 } else {
5410 layout.content_origin.x
5411 - layout.position_map.scroll_pixel_position.x
5412 },
5413 end_x: if row == range.end.row() {
5414 layout.content_origin.x
5415 + line_layout.x_for_index(range.end.column() as usize)
5416 - layout.position_map.scroll_pixel_position.x
5417 } else {
5418 layout.content_origin.x + line_layout.width + line_end_overshoot
5419 - layout.position_map.scroll_pixel_position.x
5420 },
5421 }
5422 })
5423 .collect(),
5424 };
5425
5426 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5427 }
5428 }
5429
5430 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5431 if let Some(mut inline_blame) = layout.inline_blame.take() {
5432 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5433 inline_blame.paint(window, cx);
5434 })
5435 }
5436 }
5437
5438 fn paint_diff_hunk_controls(
5439 &mut self,
5440 layout: &mut EditorLayout,
5441 window: &mut Window,
5442 cx: &mut App,
5443 ) {
5444 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5445 diff_hunk_control.paint(window, cx);
5446 }
5447 }
5448
5449 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5450 for mut block in layout.blocks.drain(..) {
5451 block.element.paint(window, cx);
5452 }
5453 }
5454
5455 fn paint_inline_completion_popover(
5456 &mut self,
5457 layout: &mut EditorLayout,
5458 window: &mut Window,
5459 cx: &mut App,
5460 ) {
5461 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5462 inline_completion_popover.paint(window, cx);
5463 }
5464 }
5465
5466 fn paint_mouse_context_menu(
5467 &mut self,
5468 layout: &mut EditorLayout,
5469 window: &mut Window,
5470 cx: &mut App,
5471 ) {
5472 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5473 mouse_context_menu.paint(window, cx);
5474 }
5475 }
5476
5477 fn paint_scroll_wheel_listener(
5478 &mut self,
5479 layout: &EditorLayout,
5480 window: &mut Window,
5481 cx: &mut App,
5482 ) {
5483 window.on_mouse_event({
5484 let position_map = layout.position_map.clone();
5485 let editor = self.editor.clone();
5486 let hitbox = layout.hitbox.clone();
5487 let mut delta = ScrollDelta::default();
5488
5489 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5490 // accidentally turn off their scrolling.
5491 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5492
5493 move |event: &ScrollWheelEvent, phase, window, cx| {
5494 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5495 delta = delta.coalesce(event.delta);
5496 editor.update(cx, |editor, cx| {
5497 let position_map: &PositionMap = &position_map;
5498
5499 let line_height = position_map.line_height;
5500 let max_glyph_width = position_map.em_width;
5501 let (delta, axis) = match delta {
5502 gpui::ScrollDelta::Pixels(mut pixels) => {
5503 //Trackpad
5504 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5505 (pixels, axis)
5506 }
5507
5508 gpui::ScrollDelta::Lines(lines) => {
5509 //Not trackpad
5510 let pixels =
5511 point(lines.x * max_glyph_width, lines.y * line_height);
5512 (pixels, None)
5513 }
5514 };
5515
5516 let current_scroll_position = position_map.snapshot.scroll_position();
5517 let x = (current_scroll_position.x * max_glyph_width
5518 - (delta.x * scroll_sensitivity))
5519 / max_glyph_width;
5520 let y = (current_scroll_position.y * line_height
5521 - (delta.y * scroll_sensitivity))
5522 / line_height;
5523 let mut scroll_position =
5524 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5525 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5526 if forbid_vertical_scroll {
5527 scroll_position.y = current_scroll_position.y;
5528 }
5529
5530 if scroll_position != current_scroll_position {
5531 editor.scroll(scroll_position, axis, window, cx);
5532 cx.stop_propagation();
5533 } else if y < 0. {
5534 // Due to clamping, we may fail to detect cases of overscroll to the top;
5535 // We want the scroll manager to get an update in such cases and detect the change of direction
5536 // on the next frame.
5537 cx.notify();
5538 }
5539 });
5540 }
5541 }
5542 });
5543 }
5544
5545 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5546 self.paint_scroll_wheel_listener(layout, window, cx);
5547
5548 window.on_mouse_event({
5549 let position_map = layout.position_map.clone();
5550 let editor = self.editor.clone();
5551 let multi_buffer_range =
5552 layout
5553 .display_hunks
5554 .iter()
5555 .find_map(|(hunk, hunk_hitbox)| match hunk {
5556 DisplayDiffHunk::Folded { .. } => None,
5557 DisplayDiffHunk::Unfolded {
5558 multi_buffer_range, ..
5559 } => {
5560 if hunk_hitbox
5561 .as_ref()
5562 .map(|hitbox| hitbox.is_hovered(window))
5563 .unwrap_or(false)
5564 {
5565 Some(multi_buffer_range.clone())
5566 } else {
5567 None
5568 }
5569 }
5570 });
5571 let line_numbers = layout.line_numbers.clone();
5572
5573 move |event: &MouseDownEvent, phase, window, cx| {
5574 if phase == DispatchPhase::Bubble {
5575 match event.button {
5576 MouseButton::Left => editor.update(cx, |editor, cx| {
5577 let pending_mouse_down = editor
5578 .pending_mouse_down
5579 .get_or_insert_with(Default::default)
5580 .clone();
5581
5582 *pending_mouse_down.borrow_mut() = Some(event.clone());
5583
5584 Self::mouse_left_down(
5585 editor,
5586 event,
5587 multi_buffer_range.clone(),
5588 &position_map,
5589 line_numbers.as_ref(),
5590 window,
5591 cx,
5592 );
5593 }),
5594 MouseButton::Right => editor.update(cx, |editor, cx| {
5595 Self::mouse_right_down(editor, event, &position_map, window, cx);
5596 }),
5597 MouseButton::Middle => editor.update(cx, |editor, cx| {
5598 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5599 }),
5600 _ => {}
5601 };
5602 }
5603 }
5604 });
5605
5606 window.on_mouse_event({
5607 let editor = self.editor.clone();
5608 let position_map = layout.position_map.clone();
5609
5610 move |event: &MouseUpEvent, phase, window, cx| {
5611 if phase == DispatchPhase::Bubble {
5612 editor.update(cx, |editor, cx| {
5613 Self::mouse_up(editor, event, &position_map, window, cx)
5614 });
5615 }
5616 }
5617 });
5618
5619 window.on_mouse_event({
5620 let editor = self.editor.clone();
5621 let position_map = layout.position_map.clone();
5622 let mut captured_mouse_down = None;
5623
5624 move |event: &MouseUpEvent, phase, window, cx| match phase {
5625 // Clear the pending mouse down during the capture phase,
5626 // so that it happens even if another event handler stops
5627 // propagation.
5628 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5629 let pending_mouse_down = editor
5630 .pending_mouse_down
5631 .get_or_insert_with(Default::default)
5632 .clone();
5633
5634 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5635 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5636 captured_mouse_down = pending_mouse_down.take();
5637 window.refresh();
5638 }
5639 }),
5640 // Fire click handlers during the bubble phase.
5641 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5642 if let Some(mouse_down) = captured_mouse_down.take() {
5643 let event = ClickEvent {
5644 down: mouse_down,
5645 up: event.clone(),
5646 };
5647 Self::click(editor, &event, &position_map, window, cx);
5648 }
5649 }),
5650 }
5651 });
5652
5653 window.on_mouse_event({
5654 let position_map = layout.position_map.clone();
5655 let editor = self.editor.clone();
5656
5657 move |event: &MouseMoveEvent, phase, window, cx| {
5658 if phase == DispatchPhase::Bubble {
5659 editor.update(cx, |editor, cx| {
5660 if editor.hover_state.focused(window, cx) {
5661 return;
5662 }
5663 if event.pressed_button == Some(MouseButton::Left)
5664 || event.pressed_button == Some(MouseButton::Middle)
5665 {
5666 Self::mouse_dragged(editor, event, &position_map, window, cx)
5667 }
5668
5669 Self::mouse_moved(editor, event, &position_map, window, cx)
5670 });
5671 }
5672 }
5673 });
5674 }
5675
5676 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5677 bounds.top_right().x - self.style.scrollbar_width
5678 }
5679
5680 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5681 let style = &self.style;
5682 let font_size = style.text.font_size.to_pixels(window.rem_size());
5683 let layout = window
5684 .text_system()
5685 .shape_line(
5686 SharedString::from(" ".repeat(column)),
5687 font_size,
5688 &[TextRun {
5689 len: column,
5690 font: style.text.font(),
5691 color: Hsla::default(),
5692 background_color: None,
5693 underline: None,
5694 strikethrough: None,
5695 }],
5696 )
5697 .unwrap();
5698
5699 layout.width
5700 }
5701
5702 fn max_line_number_width(
5703 &self,
5704 snapshot: &EditorSnapshot,
5705 window: &mut Window,
5706 cx: &mut App,
5707 ) -> Pixels {
5708 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5709 self.column_pixels(digit_count, window, cx)
5710 }
5711
5712 fn shape_line_number(
5713 &self,
5714 text: SharedString,
5715 color: Hsla,
5716 window: &mut Window,
5717 ) -> anyhow::Result<ShapedLine> {
5718 let run = TextRun {
5719 len: text.len(),
5720 font: self.style.text.font(),
5721 color,
5722 background_color: None,
5723 underline: None,
5724 strikethrough: None,
5725 };
5726 window.text_system().shape_line(
5727 text,
5728 self.style.text.font_size.to_pixels(window.rem_size()),
5729 &[run],
5730 )
5731 }
5732}
5733
5734fn header_jump_data(
5735 snapshot: &EditorSnapshot,
5736 block_row_start: DisplayRow,
5737 height: u32,
5738 for_excerpt: &ExcerptInfo,
5739) -> JumpData {
5740 let range = &for_excerpt.range;
5741 let buffer = &for_excerpt.buffer;
5742 let jump_anchor = range
5743 .primary
5744 .as_ref()
5745 .map_or(range.context.start, |primary| primary.start);
5746
5747 let excerpt_start = range.context.start;
5748 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5749 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5750 0
5751 } else {
5752 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5753 jump_position.row.saturating_sub(excerpt_start_point.row)
5754 };
5755
5756 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5757 .saturating_sub(
5758 snapshot
5759 .scroll_anchor
5760 .scroll_position(&snapshot.display_snapshot)
5761 .y as u32,
5762 );
5763
5764 JumpData::MultiBufferPoint {
5765 excerpt_id: for_excerpt.id,
5766 anchor: jump_anchor,
5767 position: jump_position,
5768 line_offset_from_top,
5769 }
5770}
5771
5772fn inline_completion_accept_indicator(
5773 label: impl Into<SharedString>,
5774 icon: Option<IconName>,
5775 previewing: bool,
5776 focus_handle: FocusHandle,
5777 window: &Window,
5778 cx: &App,
5779) -> AnyElement {
5780 let use_hardcoded_linux_preview_binding;
5781
5782 #[cfg(target_os = "macos")]
5783 {
5784 use_hardcoded_linux_preview_binding = false;
5785 }
5786
5787 #[cfg(not(target_os = "macos"))]
5788 {
5789 use_hardcoded_linux_preview_binding = previewing;
5790 }
5791
5792 let accept_keystroke = if use_hardcoded_linux_preview_binding {
5793 Keystroke {
5794 modifiers: Default::default(),
5795 key: "enter".to_string(),
5796 key_char: None,
5797 }
5798 } else {
5799 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5800 if let Some(keystroke) = bindings
5801 .last()
5802 .and_then(|binding| binding.keystrokes().first())
5803 {
5804 // TODO: clone unnecessary once `use_hardcoded_linux_preview_binding` is removed.
5805 keystroke.clone()
5806 } else {
5807 return div().into_any();
5808 }
5809 };
5810
5811 let accept_key = h_flex()
5812 .px_0p5()
5813 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5814 .text_size(TextSize::XSmall.rems(cx))
5815 .text_color(cx.theme().colors().text)
5816 .gap_1()
5817 .when(!previewing, |parent| {
5818 parent.children(ui::render_modifiers(
5819 &accept_keystroke.modifiers,
5820 PlatformStyle::platform(),
5821 Some(Color::Default),
5822 false,
5823 ))
5824 })
5825 .child(accept_keystroke.key.clone());
5826
5827 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5828
5829 h_flex()
5830 .py_0p5()
5831 .pl_1()
5832 .pr(padding_right)
5833 .gap_1()
5834 .bg(cx.theme().colors().text_accent.opacity(0.15))
5835 .border_1()
5836 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5837 .rounded_md()
5838 .shadow_sm()
5839 .child(accept_key)
5840 .child(Label::new(label).size(LabelSize::Small))
5841 .when_some(icon, |element, icon| {
5842 element.child(
5843 div()
5844 .mt(px(1.5))
5845 .child(Icon::new(icon).size(IconSize::Small)),
5846 )
5847 })
5848 .into_any()
5849}
5850
5851#[allow(clippy::too_many_arguments)]
5852fn prepaint_gutter_button(
5853 button: IconButton,
5854 row: DisplayRow,
5855 line_height: Pixels,
5856 gutter_dimensions: &GutterDimensions,
5857 scroll_pixel_position: gpui::Point<Pixels>,
5858 gutter_hitbox: &Hitbox,
5859 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5860 window: &mut Window,
5861 cx: &mut App,
5862) -> AnyElement {
5863 let mut button = button.into_any_element();
5864 let available_space = size(
5865 AvailableSpace::MinContent,
5866 AvailableSpace::Definite(line_height),
5867 );
5868 let indicator_size = button.layout_as_root(available_space, window, cx);
5869
5870 let blame_width = gutter_dimensions.git_blame_entries_width;
5871 let gutter_width = rows_with_hunk_bounds
5872 .get(&row)
5873 .map(|bounds| bounds.size.width);
5874 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5875
5876 let mut x = left_offset;
5877 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5878 - indicator_size.width
5879 - left_offset;
5880 x += available_width / 2.;
5881
5882 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5883 y += (line_height - indicator_size.height) / 2.;
5884
5885 button.prepaint_as_root(
5886 gutter_hitbox.origin + point(x, y),
5887 available_space,
5888 window,
5889 cx,
5890 );
5891 button
5892}
5893
5894fn render_inline_blame_entry(
5895 blame: &gpui::Entity<GitBlame>,
5896 blame_entry: BlameEntry,
5897 style: &EditorStyle,
5898 workspace: Option<WeakEntity<Workspace>>,
5899 cx: &mut App,
5900) -> AnyElement {
5901 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5902
5903 let author = blame_entry.author.as_deref().unwrap_or_default();
5904 let summary_enabled = ProjectSettings::get_global(cx)
5905 .git
5906 .show_inline_commit_summary();
5907
5908 let text = match blame_entry.summary.as_ref() {
5909 Some(summary) if summary_enabled => {
5910 format!("{}, {} - {}", author, relative_timestamp, summary)
5911 }
5912 _ => format!("{}, {}", author, relative_timestamp),
5913 };
5914
5915 let details = blame.read(cx).details_for_entry(&blame_entry);
5916
5917 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5918
5919 h_flex()
5920 .id("inline-blame")
5921 .w_full()
5922 .font_family(style.text.font().family)
5923 .text_color(cx.theme().status().hint)
5924 .line_height(style.text.line_height)
5925 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5926 .child(text)
5927 .gap_2()
5928 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5929 .into_any()
5930}
5931
5932fn render_blame_entry(
5933 ix: usize,
5934 blame: &gpui::Entity<GitBlame>,
5935 blame_entry: BlameEntry,
5936 style: &EditorStyle,
5937 last_used_color: &mut Option<(PlayerColor, Oid)>,
5938 editor: Entity<Editor>,
5939 cx: &mut App,
5940) -> AnyElement {
5941 let mut sha_color = cx
5942 .theme()
5943 .players()
5944 .color_for_participant(blame_entry.sha.into());
5945 // If the last color we used is the same as the one we get for this line, but
5946 // the commit SHAs are different, then we try again to get a different color.
5947 match *last_used_color {
5948 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5949 let index: u32 = blame_entry.sha.into();
5950 sha_color = cx.theme().players().color_for_participant(index + 1);
5951 }
5952 _ => {}
5953 };
5954 last_used_color.replace((sha_color, blame_entry.sha));
5955
5956 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5957
5958 let short_commit_id = blame_entry.sha.display_short();
5959
5960 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5961 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5962
5963 let details = blame.read(cx).details_for_entry(&blame_entry);
5964
5965 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5966
5967 let tooltip =
5968 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5969
5970 h_flex()
5971 .w_full()
5972 .justify_between()
5973 .font_family(style.text.font().family)
5974 .line_height(style.text.line_height)
5975 .id(("blame", ix))
5976 .text_color(cx.theme().status().hint)
5977 .pr_2()
5978 .gap_2()
5979 .child(
5980 h_flex()
5981 .items_center()
5982 .gap_2()
5983 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5984 .child(name),
5985 )
5986 .child(relative_timestamp)
5987 .on_mouse_down(MouseButton::Right, {
5988 let blame_entry = blame_entry.clone();
5989 let details = details.clone();
5990 move |event, window, cx| {
5991 deploy_blame_entry_context_menu(
5992 &blame_entry,
5993 details.as_ref(),
5994 editor.clone(),
5995 event.position,
5996 window,
5997 cx,
5998 );
5999 }
6000 })
6001 .hover(|style| style.bg(cx.theme().colors().element_hover))
6002 .when_some(
6003 details.and_then(|details| details.permalink),
6004 |this, url| {
6005 let url = url.clone();
6006 this.cursor_pointer().on_click(move |_, _, cx| {
6007 cx.stop_propagation();
6008 cx.open_url(url.as_str())
6009 })
6010 },
6011 )
6012 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6013 .into_any()
6014}
6015
6016fn deploy_blame_entry_context_menu(
6017 blame_entry: &BlameEntry,
6018 details: Option<&CommitDetails>,
6019 editor: Entity<Editor>,
6020 position: gpui::Point<Pixels>,
6021 window: &mut Window,
6022 cx: &mut App,
6023) {
6024 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6025 let sha = format!("{}", blame_entry.sha);
6026 menu.on_blur_subscription(Subscription::new(|| {}))
6027 .entry("Copy commit SHA", None, move |_, cx| {
6028 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6029 })
6030 .when_some(
6031 details.and_then(|details| details.permalink.clone()),
6032 |this, url| {
6033 this.entry("Open permalink", None, move |_, cx| {
6034 cx.open_url(url.as_str())
6035 })
6036 },
6037 )
6038 });
6039
6040 editor.update(cx, move |editor, cx| {
6041 editor.mouse_context_menu = Some(MouseContextMenu::new(
6042 MenuPosition::PinnedToScreen(position),
6043 context_menu,
6044 window,
6045 cx,
6046 ));
6047 cx.notify();
6048 });
6049}
6050
6051#[derive(Debug)]
6052pub(crate) struct LineWithInvisibles {
6053 fragments: SmallVec<[LineFragment; 1]>,
6054 invisibles: Vec<Invisible>,
6055 len: usize,
6056 width: Pixels,
6057 font_size: Pixels,
6058}
6059
6060#[allow(clippy::large_enum_variant)]
6061enum LineFragment {
6062 Text(ShapedLine),
6063 Element {
6064 element: Option<AnyElement>,
6065 size: Size<Pixels>,
6066 len: usize,
6067 },
6068}
6069
6070impl fmt::Debug for LineFragment {
6071 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6072 match self {
6073 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6074 LineFragment::Element { size, len, .. } => f
6075 .debug_struct("Element")
6076 .field("size", size)
6077 .field("len", len)
6078 .finish(),
6079 }
6080 }
6081}
6082
6083impl LineWithInvisibles {
6084 #[allow(clippy::too_many_arguments)]
6085 fn from_chunks<'a>(
6086 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6087 editor_style: &EditorStyle,
6088 max_line_len: usize,
6089 max_line_count: usize,
6090 editor_mode: EditorMode,
6091 text_width: Pixels,
6092 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6093 window: &mut Window,
6094 cx: &mut App,
6095 ) -> Vec<Self> {
6096 let text_style = &editor_style.text;
6097 let mut layouts = Vec::with_capacity(max_line_count);
6098 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6099 let mut line = String::new();
6100 let mut invisibles = Vec::new();
6101 let mut width = Pixels::ZERO;
6102 let mut len = 0;
6103 let mut styles = Vec::new();
6104 let mut non_whitespace_added = false;
6105 let mut row = 0;
6106 let mut line_exceeded_max_len = false;
6107 let font_size = text_style.font_size.to_pixels(window.rem_size());
6108
6109 let ellipsis = SharedString::from("⋯");
6110
6111 for highlighted_chunk in chunks.chain([HighlightedChunk {
6112 text: "\n",
6113 style: None,
6114 is_tab: false,
6115 replacement: None,
6116 }]) {
6117 if let Some(replacement) = highlighted_chunk.replacement {
6118 if !line.is_empty() {
6119 let shaped_line = window
6120 .text_system()
6121 .shape_line(line.clone().into(), font_size, &styles)
6122 .unwrap();
6123 width += shaped_line.width;
6124 len += shaped_line.len;
6125 fragments.push(LineFragment::Text(shaped_line));
6126 line.clear();
6127 styles.clear();
6128 }
6129
6130 match replacement {
6131 ChunkReplacement::Renderer(renderer) => {
6132 let available_width = if renderer.constrain_width {
6133 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6134 ellipsis.clone()
6135 } else {
6136 SharedString::from(Arc::from(highlighted_chunk.text))
6137 };
6138 let shaped_line = window
6139 .text_system()
6140 .shape_line(
6141 chunk,
6142 font_size,
6143 &[text_style.to_run(highlighted_chunk.text.len())],
6144 )
6145 .unwrap();
6146 AvailableSpace::Definite(shaped_line.width)
6147 } else {
6148 AvailableSpace::MinContent
6149 };
6150
6151 let mut element = (renderer.render)(&mut ChunkRendererContext {
6152 context: cx,
6153 window,
6154 max_width: text_width,
6155 });
6156 let line_height = text_style.line_height_in_pixels(window.rem_size());
6157 let size = element.layout_as_root(
6158 size(available_width, AvailableSpace::Definite(line_height)),
6159 window,
6160 cx,
6161 );
6162
6163 width += size.width;
6164 len += highlighted_chunk.text.len();
6165 fragments.push(LineFragment::Element {
6166 element: Some(element),
6167 size,
6168 len: highlighted_chunk.text.len(),
6169 });
6170 }
6171 ChunkReplacement::Str(x) => {
6172 let text_style = if let Some(style) = highlighted_chunk.style {
6173 Cow::Owned(text_style.clone().highlight(style))
6174 } else {
6175 Cow::Borrowed(text_style)
6176 };
6177
6178 let run = TextRun {
6179 len: x.len(),
6180 font: text_style.font(),
6181 color: text_style.color,
6182 background_color: text_style.background_color,
6183 underline: text_style.underline,
6184 strikethrough: text_style.strikethrough,
6185 };
6186 let line_layout = window
6187 .text_system()
6188 .shape_line(x, font_size, &[run])
6189 .unwrap()
6190 .with_len(highlighted_chunk.text.len());
6191
6192 width += line_layout.width;
6193 len += highlighted_chunk.text.len();
6194 fragments.push(LineFragment::Text(line_layout))
6195 }
6196 }
6197 } else {
6198 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6199 if ix > 0 {
6200 let shaped_line = window
6201 .text_system()
6202 .shape_line(line.clone().into(), font_size, &styles)
6203 .unwrap();
6204 width += shaped_line.width;
6205 len += shaped_line.len;
6206 fragments.push(LineFragment::Text(shaped_line));
6207 layouts.push(Self {
6208 width: mem::take(&mut width),
6209 len: mem::take(&mut len),
6210 fragments: mem::take(&mut fragments),
6211 invisibles: std::mem::take(&mut invisibles),
6212 font_size,
6213 });
6214
6215 line.clear();
6216 styles.clear();
6217 row += 1;
6218 line_exceeded_max_len = false;
6219 non_whitespace_added = false;
6220 if row == max_line_count {
6221 return layouts;
6222 }
6223 }
6224
6225 if !line_chunk.is_empty() && !line_exceeded_max_len {
6226 let text_style = if let Some(style) = highlighted_chunk.style {
6227 Cow::Owned(text_style.clone().highlight(style))
6228 } else {
6229 Cow::Borrowed(text_style)
6230 };
6231
6232 if line.len() + line_chunk.len() > max_line_len {
6233 let mut chunk_len = max_line_len - line.len();
6234 while !line_chunk.is_char_boundary(chunk_len) {
6235 chunk_len -= 1;
6236 }
6237 line_chunk = &line_chunk[..chunk_len];
6238 line_exceeded_max_len = true;
6239 }
6240
6241 styles.push(TextRun {
6242 len: line_chunk.len(),
6243 font: text_style.font(),
6244 color: text_style.color,
6245 background_color: text_style.background_color,
6246 underline: text_style.underline,
6247 strikethrough: text_style.strikethrough,
6248 });
6249
6250 if editor_mode == EditorMode::Full {
6251 // Line wrap pads its contents with fake whitespaces,
6252 // avoid printing them
6253 let is_soft_wrapped = is_row_soft_wrapped(row);
6254 if highlighted_chunk.is_tab {
6255 if non_whitespace_added || !is_soft_wrapped {
6256 invisibles.push(Invisible::Tab {
6257 line_start_offset: line.len(),
6258 line_end_offset: line.len() + line_chunk.len(),
6259 });
6260 }
6261 } else {
6262 invisibles.extend(line_chunk.char_indices().filter_map(
6263 |(index, c)| {
6264 let is_whitespace = c.is_whitespace();
6265 non_whitespace_added |= !is_whitespace;
6266 if is_whitespace
6267 && (non_whitespace_added || !is_soft_wrapped)
6268 {
6269 Some(Invisible::Whitespace {
6270 line_offset: line.len() + index,
6271 })
6272 } else {
6273 None
6274 }
6275 },
6276 ))
6277 }
6278 }
6279
6280 line.push_str(line_chunk);
6281 }
6282 }
6283 }
6284 }
6285
6286 layouts
6287 }
6288
6289 #[allow(clippy::too_many_arguments)]
6290 fn prepaint(
6291 &mut self,
6292 line_height: Pixels,
6293 scroll_pixel_position: gpui::Point<Pixels>,
6294 row: DisplayRow,
6295 content_origin: gpui::Point<Pixels>,
6296 line_elements: &mut SmallVec<[AnyElement; 1]>,
6297 window: &mut Window,
6298 cx: &mut App,
6299 ) {
6300 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6301 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6302 for fragment in &mut self.fragments {
6303 match fragment {
6304 LineFragment::Text(line) => {
6305 fragment_origin.x += line.width;
6306 }
6307 LineFragment::Element { element, size, .. } => {
6308 let mut element = element
6309 .take()
6310 .expect("you can't prepaint LineWithInvisibles twice");
6311
6312 // Center the element vertically within the line.
6313 let mut element_origin = fragment_origin;
6314 element_origin.y += (line_height - size.height) / 2.;
6315 element.prepaint_at(element_origin, window, cx);
6316 line_elements.push(element);
6317
6318 fragment_origin.x += size.width;
6319 }
6320 }
6321 }
6322 }
6323
6324 #[allow(clippy::too_many_arguments)]
6325 fn draw(
6326 &self,
6327 layout: &EditorLayout,
6328 row: DisplayRow,
6329 content_origin: gpui::Point<Pixels>,
6330 whitespace_setting: ShowWhitespaceSetting,
6331 selection_ranges: &[Range<DisplayPoint>],
6332 window: &mut Window,
6333 cx: &mut App,
6334 ) {
6335 let line_height = layout.position_map.line_height;
6336 let line_y = line_height
6337 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6338
6339 let mut fragment_origin =
6340 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6341
6342 for fragment in &self.fragments {
6343 match fragment {
6344 LineFragment::Text(line) => {
6345 line.paint(fragment_origin, line_height, window, cx)
6346 .log_err();
6347 fragment_origin.x += line.width;
6348 }
6349 LineFragment::Element { size, .. } => {
6350 fragment_origin.x += size.width;
6351 }
6352 }
6353 }
6354
6355 self.draw_invisibles(
6356 selection_ranges,
6357 layout,
6358 content_origin,
6359 line_y,
6360 row,
6361 line_height,
6362 whitespace_setting,
6363 window,
6364 cx,
6365 );
6366 }
6367
6368 #[allow(clippy::too_many_arguments)]
6369 fn draw_invisibles(
6370 &self,
6371 selection_ranges: &[Range<DisplayPoint>],
6372 layout: &EditorLayout,
6373 content_origin: gpui::Point<Pixels>,
6374 line_y: Pixels,
6375 row: DisplayRow,
6376 line_height: Pixels,
6377 whitespace_setting: ShowWhitespaceSetting,
6378 window: &mut Window,
6379 cx: &mut App,
6380 ) {
6381 let extract_whitespace_info = |invisible: &Invisible| {
6382 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6383 Invisible::Tab {
6384 line_start_offset,
6385 line_end_offset,
6386 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6387 Invisible::Whitespace { line_offset } => {
6388 (*line_offset, line_offset + 1, &layout.space_invisible)
6389 }
6390 };
6391
6392 let x_offset = self.x_for_index(token_offset);
6393 let invisible_offset =
6394 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6395 let origin = content_origin
6396 + gpui::point(
6397 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6398 line_y,
6399 );
6400
6401 (
6402 [token_offset, token_end_offset],
6403 Box::new(move |window: &mut Window, cx: &mut App| {
6404 invisible_symbol
6405 .paint(origin, line_height, window, cx)
6406 .log_err();
6407 }),
6408 )
6409 };
6410
6411 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6412 match whitespace_setting {
6413 ShowWhitespaceSetting::None => (),
6414 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6415 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6416 let invisible_point = DisplayPoint::new(row, start as u32);
6417 if !selection_ranges
6418 .iter()
6419 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6420 {
6421 return;
6422 }
6423
6424 paint(window, cx);
6425 }),
6426
6427 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6428 // - It is a tab
6429 // - It is adjacent to an edge (start or end)
6430 // - It is adjacent to a whitespace (left or right)
6431 ShowWhitespaceSetting::Boundary => {
6432 // 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
6433 // the above cases.
6434 // Note: We zip in the original `invisibles` to check for tab equality
6435 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6436 for (([start, end], paint), invisible) in
6437 invisible_iter.zip_eq(self.invisibles.iter())
6438 {
6439 let should_render = match (&last_seen, invisible) {
6440 (_, Invisible::Tab { .. }) => true,
6441 (Some((_, last_end, _)), _) => *last_end == start,
6442 _ => false,
6443 };
6444
6445 if should_render || start == 0 || end == self.len {
6446 paint(window, cx);
6447
6448 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6449 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6450 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6451 // Note that we need to make sure that the last one is actually adjacent
6452 if !should_render_last && last_end == start {
6453 paint_last(window, cx);
6454 }
6455 }
6456 }
6457
6458 // Manually render anything within a selection
6459 let invisible_point = DisplayPoint::new(row, start as u32);
6460 if selection_ranges.iter().any(|region| {
6461 region.start <= invisible_point && invisible_point < region.end
6462 }) {
6463 paint(window, cx);
6464 }
6465
6466 last_seen = Some((should_render, end, paint));
6467 }
6468 }
6469 }
6470 }
6471
6472 pub fn x_for_index(&self, index: usize) -> Pixels {
6473 let mut fragment_start_x = Pixels::ZERO;
6474 let mut fragment_start_index = 0;
6475
6476 for fragment in &self.fragments {
6477 match fragment {
6478 LineFragment::Text(shaped_line) => {
6479 let fragment_end_index = fragment_start_index + shaped_line.len;
6480 if index < fragment_end_index {
6481 return fragment_start_x
6482 + shaped_line.x_for_index(index - fragment_start_index);
6483 }
6484 fragment_start_x += shaped_line.width;
6485 fragment_start_index = fragment_end_index;
6486 }
6487 LineFragment::Element { len, size, .. } => {
6488 let fragment_end_index = fragment_start_index + len;
6489 if index < fragment_end_index {
6490 return fragment_start_x;
6491 }
6492 fragment_start_x += size.width;
6493 fragment_start_index = fragment_end_index;
6494 }
6495 }
6496 }
6497
6498 fragment_start_x
6499 }
6500
6501 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6502 let mut fragment_start_x = Pixels::ZERO;
6503 let mut fragment_start_index = 0;
6504
6505 for fragment in &self.fragments {
6506 match fragment {
6507 LineFragment::Text(shaped_line) => {
6508 let fragment_end_x = fragment_start_x + shaped_line.width;
6509 if x < fragment_end_x {
6510 return Some(
6511 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6512 );
6513 }
6514 fragment_start_x = fragment_end_x;
6515 fragment_start_index += shaped_line.len;
6516 }
6517 LineFragment::Element { len, size, .. } => {
6518 let fragment_end_x = fragment_start_x + size.width;
6519 if x < fragment_end_x {
6520 return Some(fragment_start_index);
6521 }
6522 fragment_start_index += len;
6523 fragment_start_x = fragment_end_x;
6524 }
6525 }
6526 }
6527
6528 None
6529 }
6530
6531 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6532 let mut fragment_start_index = 0;
6533
6534 for fragment in &self.fragments {
6535 match fragment {
6536 LineFragment::Text(shaped_line) => {
6537 let fragment_end_index = fragment_start_index + shaped_line.len;
6538 if index < fragment_end_index {
6539 return shaped_line.font_id_for_index(index - fragment_start_index);
6540 }
6541 fragment_start_index = fragment_end_index;
6542 }
6543 LineFragment::Element { len, .. } => {
6544 let fragment_end_index = fragment_start_index + len;
6545 if index < fragment_end_index {
6546 return None;
6547 }
6548 fragment_start_index = fragment_end_index;
6549 }
6550 }
6551 }
6552
6553 None
6554 }
6555}
6556
6557#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6558enum Invisible {
6559 /// A tab character
6560 ///
6561 /// A tab character is internally represented by spaces (configured by the user's tab width)
6562 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6563 /// adjacency checks.
6564 Tab {
6565 line_start_offset: usize,
6566 line_end_offset: usize,
6567 },
6568 Whitespace {
6569 line_offset: usize,
6570 },
6571}
6572
6573impl EditorElement {
6574 /// Returns the rem size to use when rendering the [`EditorElement`].
6575 ///
6576 /// This allows UI elements to scale based on the `buffer_font_size`.
6577 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6578 match self.editor.read(cx).mode {
6579 EditorMode::Full => {
6580 let buffer_font_size = self.style.text.font_size;
6581 match buffer_font_size {
6582 AbsoluteLength::Pixels(pixels) => {
6583 let rem_size_scale = {
6584 // Our default UI font size is 14px on a 16px base scale.
6585 // This means the default UI font size is 0.875rems.
6586 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6587
6588 // We then determine the delta between a single rem and the default font
6589 // size scale.
6590 let default_font_size_delta = 1. - default_font_size_scale;
6591
6592 // Finally, we add this delta to 1rem to get the scale factor that
6593 // should be used to scale up the UI.
6594 1. + default_font_size_delta
6595 };
6596
6597 Some(pixels * rem_size_scale)
6598 }
6599 AbsoluteLength::Rems(rems) => {
6600 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6601 }
6602 }
6603 }
6604 // We currently use single-line and auto-height editors in UI contexts,
6605 // so we don't want to scale everything with the buffer font size, as it
6606 // ends up looking off.
6607 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6608 }
6609 }
6610}
6611
6612impl Element for EditorElement {
6613 type RequestLayoutState = ();
6614 type PrepaintState = EditorLayout;
6615
6616 fn id(&self) -> Option<ElementId> {
6617 None
6618 }
6619
6620 fn request_layout(
6621 &mut self,
6622 _: Option<&GlobalElementId>,
6623 window: &mut Window,
6624 cx: &mut App,
6625 ) -> (gpui::LayoutId, ()) {
6626 let rem_size = self.rem_size(cx);
6627 window.with_rem_size(rem_size, |window| {
6628 self.editor.update(cx, |editor, cx| {
6629 editor.set_style(self.style.clone(), window, cx);
6630
6631 let layout_id = match editor.mode {
6632 EditorMode::SingleLine { auto_width } => {
6633 let rem_size = window.rem_size();
6634
6635 let height = self.style.text.line_height_in_pixels(rem_size);
6636 if auto_width {
6637 let editor_handle = cx.entity().clone();
6638 let style = self.style.clone();
6639 window.request_measured_layout(
6640 Style::default(),
6641 move |_, _, window, cx| {
6642 let editor_snapshot = editor_handle
6643 .update(cx, |editor, cx| editor.snapshot(window, cx));
6644 let line = Self::layout_lines(
6645 DisplayRow(0)..DisplayRow(1),
6646 &editor_snapshot,
6647 &style,
6648 px(f32::MAX),
6649 |_| false, // Single lines never soft wrap
6650 window,
6651 cx,
6652 )
6653 .pop()
6654 .unwrap();
6655
6656 let font_id =
6657 window.text_system().resolve_font(&style.text.font());
6658 let font_size =
6659 style.text.font_size.to_pixels(window.rem_size());
6660 let em_width =
6661 window.text_system().em_width(font_id, font_size).unwrap();
6662
6663 size(line.width + em_width, height)
6664 },
6665 )
6666 } else {
6667 let mut style = Style::default();
6668 style.size.height = height.into();
6669 style.size.width = relative(1.).into();
6670 window.request_layout(style, None, cx)
6671 }
6672 }
6673 EditorMode::AutoHeight { max_lines } => {
6674 let editor_handle = cx.entity().clone();
6675 let max_line_number_width =
6676 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6677 window.request_measured_layout(
6678 Style::default(),
6679 move |known_dimensions, available_space, window, cx| {
6680 editor_handle
6681 .update(cx, |editor, cx| {
6682 compute_auto_height_layout(
6683 editor,
6684 max_lines,
6685 max_line_number_width,
6686 known_dimensions,
6687 available_space.width,
6688 window,
6689 cx,
6690 )
6691 })
6692 .unwrap_or_default()
6693 },
6694 )
6695 }
6696 EditorMode::Full => {
6697 let mut style = Style::default();
6698 style.size.width = relative(1.).into();
6699 style.size.height = relative(1.).into();
6700 window.request_layout(style, None, cx)
6701 }
6702 };
6703
6704 (layout_id, ())
6705 })
6706 })
6707 }
6708
6709 fn prepaint(
6710 &mut self,
6711 _: Option<&GlobalElementId>,
6712 bounds: Bounds<Pixels>,
6713 _: &mut Self::RequestLayoutState,
6714 window: &mut Window,
6715 cx: &mut App,
6716 ) -> Self::PrepaintState {
6717 let text_style = TextStyleRefinement {
6718 font_size: Some(self.style.text.font_size),
6719 line_height: Some(self.style.text.line_height),
6720 ..Default::default()
6721 };
6722 let focus_handle = self.editor.focus_handle(cx);
6723 window.set_view_id(self.editor.entity_id());
6724 window.set_focus_handle(&focus_handle, cx);
6725
6726 let rem_size = self.rem_size(cx);
6727 window.with_rem_size(rem_size, |window| {
6728 window.with_text_style(Some(text_style), |window| {
6729 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6730 let mut snapshot = self
6731 .editor
6732 .update(cx, |editor, cx| editor.snapshot(window, cx));
6733 let style = self.style.clone();
6734
6735 let font_id = window.text_system().resolve_font(&style.text.font());
6736 let font_size = style.text.font_size.to_pixels(window.rem_size());
6737 let line_height = style.text.line_height_in_pixels(window.rem_size());
6738 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6739 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6740
6741 let letter_size = size(em_width, line_height);
6742
6743 let gutter_dimensions = snapshot
6744 .gutter_dimensions(
6745 font_id,
6746 font_size,
6747 self.max_line_number_width(&snapshot, window, cx),
6748 cx,
6749 )
6750 .unwrap_or_default();
6751 let text_width = bounds.size.width - gutter_dimensions.width;
6752
6753 let editor_width = text_width - gutter_dimensions.margin - em_width;
6754
6755 snapshot = self.editor.update(cx, |editor, cx| {
6756 editor.last_bounds = Some(bounds);
6757 editor.gutter_dimensions = gutter_dimensions;
6758 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6759
6760 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6761 snapshot
6762 } else {
6763 let wrap_width = match editor.soft_wrap_mode(cx) {
6764 SoftWrap::GitDiff => None,
6765 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6766 SoftWrap::EditorWidth => Some(editor_width),
6767 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6768 SoftWrap::Bounded(column) => {
6769 Some(editor_width.min(column as f32 * em_advance))
6770 }
6771 };
6772
6773 if editor.set_wrap_width(wrap_width, cx) {
6774 editor.snapshot(window, cx)
6775 } else {
6776 snapshot
6777 }
6778 }
6779 });
6780
6781 let wrap_guides = self
6782 .editor
6783 .read(cx)
6784 .wrap_guides(cx)
6785 .iter()
6786 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6787 .collect::<SmallVec<[_; 2]>>();
6788
6789 let hitbox = window.insert_hitbox(bounds, false);
6790 let gutter_hitbox =
6791 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6792 let text_hitbox = window.insert_hitbox(
6793 Bounds {
6794 origin: gutter_hitbox.top_right(),
6795 size: size(text_width, bounds.size.height),
6796 },
6797 false,
6798 );
6799 // Offset the content_bounds from the text_bounds by the gutter margin (which
6800 // is roughly half a character wide) to make hit testing work more like how we want.
6801 let content_origin =
6802 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6803
6804 let scrollbar_bounds =
6805 Bounds::from_corners(content_origin, bounds.bottom_right());
6806
6807 let height_in_lines = scrollbar_bounds.size.height / line_height;
6808
6809 // NOTE: The max row number in the current file, minus one
6810 let max_row = snapshot.max_point().row().as_f32();
6811
6812 // NOTE: The max scroll position for the top of the window
6813 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6814 (max_row - height_in_lines + 1.).max(0.)
6815 } else {
6816 let settings = EditorSettings::get_global(cx);
6817 match settings.scroll_beyond_last_line {
6818 ScrollBeyondLastLine::OnePage => max_row,
6819 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6820 ScrollBeyondLastLine::VerticalScrollMargin => {
6821 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6822 .max(0.)
6823 }
6824 }
6825 };
6826
6827 // TODO: Autoscrolling for both axes
6828 let mut autoscroll_request = None;
6829 let mut autoscroll_containing_element = false;
6830 let mut autoscroll_horizontally = false;
6831 self.editor.update(cx, |editor, cx| {
6832 autoscroll_request = editor.autoscroll_request();
6833 autoscroll_containing_element =
6834 autoscroll_request.is_some() || editor.has_pending_selection();
6835 // TODO: Is this horizontal or vertical?!
6836 autoscroll_horizontally = editor.autoscroll_vertically(
6837 bounds,
6838 line_height,
6839 max_scroll_top,
6840 window,
6841 cx,
6842 );
6843 snapshot = editor.snapshot(window, cx);
6844 });
6845
6846 let mut scroll_position = snapshot.scroll_position();
6847 // The scroll position is a fractional point, the whole number of which represents
6848 // the top of the window in terms of display rows.
6849 let start_row = DisplayRow(scroll_position.y as u32);
6850 let max_row = snapshot.max_point().row();
6851 let end_row = cmp::min(
6852 (scroll_position.y + height_in_lines).ceil() as u32,
6853 max_row.next_row().0,
6854 );
6855 let end_row = DisplayRow(end_row);
6856
6857 let row_infos = snapshot
6858 .row_infos(start_row)
6859 .take((start_row..end_row).len())
6860 .collect::<Vec<RowInfo>>();
6861 let is_row_soft_wrapped = |row: usize| {
6862 row_infos
6863 .get(row)
6864 .map_or(true, |info| info.buffer_row.is_none())
6865 };
6866
6867 let start_anchor = if start_row == Default::default() {
6868 Anchor::min()
6869 } else {
6870 snapshot.buffer_snapshot.anchor_before(
6871 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6872 )
6873 };
6874 let end_anchor = if end_row > max_row {
6875 Anchor::max()
6876 } else {
6877 snapshot.buffer_snapshot.anchor_before(
6878 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6879 )
6880 };
6881
6882 let mut highlighted_rows = self
6883 .editor
6884 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6885
6886 for (ix, row_info) in row_infos.iter().enumerate() {
6887 let color = match row_info.diff_status {
6888 Some(DiffHunkStatus::Added) => style.status.created_background,
6889 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6890 _ => continue,
6891 };
6892 highlighted_rows
6893 .entry(start_row + DisplayRow(ix as u32))
6894 .or_insert(color);
6895 }
6896
6897 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6898 start_anchor..end_anchor,
6899 &snapshot.display_snapshot,
6900 cx.theme().colors(),
6901 );
6902 let highlighted_gutter_ranges =
6903 self.editor.read(cx).gutter_highlights_in_range(
6904 start_anchor..end_anchor,
6905 &snapshot.display_snapshot,
6906 cx,
6907 );
6908
6909 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6910 start_anchor..end_anchor,
6911 &snapshot.display_snapshot,
6912 cx,
6913 );
6914
6915 let (local_selections, selected_buffer_ids): (
6916 Vec<Selection<Point>>,
6917 Vec<BufferId>,
6918 ) = self.editor.update(cx, |editor, cx| {
6919 let all_selections = editor.selections.all::<Point>(cx);
6920 let selected_buffer_ids = if editor.is_singleton(cx) {
6921 Vec::new()
6922 } else {
6923 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6924
6925 for selection in all_selections {
6926 for buffer_id in snapshot
6927 .buffer_snapshot
6928 .buffer_ids_for_range(selection.range())
6929 {
6930 if selected_buffer_ids.last() != Some(&buffer_id) {
6931 selected_buffer_ids.push(buffer_id);
6932 }
6933 }
6934 }
6935
6936 selected_buffer_ids
6937 };
6938
6939 let mut selections = editor
6940 .selections
6941 .disjoint_in_range(start_anchor..end_anchor, cx);
6942 selections.extend(editor.selections.pending(cx));
6943
6944 (selections, selected_buffer_ids)
6945 });
6946
6947 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6948 start_anchor,
6949 end_anchor,
6950 &local_selections,
6951 &snapshot,
6952 start_row,
6953 end_row,
6954 window,
6955 cx,
6956 );
6957
6958 let line_numbers = self.layout_line_numbers(
6959 Some(&gutter_hitbox),
6960 gutter_dimensions,
6961 line_height,
6962 scroll_position,
6963 start_row..end_row,
6964 &row_infos,
6965 newest_selection_head,
6966 &snapshot,
6967 window,
6968 cx,
6969 );
6970
6971 let mut crease_toggles =
6972 window.with_element_namespace("crease_toggles", |window| {
6973 self.layout_crease_toggles(
6974 start_row..end_row,
6975 &row_infos,
6976 &active_rows,
6977 &snapshot,
6978 window,
6979 cx,
6980 )
6981 });
6982 let crease_trailers =
6983 window.with_element_namespace("crease_trailers", |window| {
6984 self.layout_crease_trailers(
6985 row_infos.iter().copied(),
6986 &snapshot,
6987 window,
6988 cx,
6989 )
6990 });
6991
6992 let display_hunks = self.layout_gutter_diff_hunks(
6993 line_height,
6994 &gutter_hitbox,
6995 start_row..end_row,
6996 &snapshot,
6997 window,
6998 cx,
6999 );
7000
7001 let mut line_layouts = Self::layout_lines(
7002 start_row..end_row,
7003 &snapshot,
7004 &self.style,
7005 editor_width,
7006 is_row_soft_wrapped,
7007 window,
7008 cx,
7009 );
7010
7011 let longest_line_blame_width = self
7012 .editor
7013 .update(cx, |editor, cx| {
7014 if !editor.show_git_blame_inline {
7015 return None;
7016 }
7017 let blame = editor.blame.as_ref()?;
7018 let blame_entry = blame
7019 .update(cx, |blame, cx| {
7020 let row_infos =
7021 snapshot.row_infos(snapshot.longest_row()).next()?;
7022 blame.blame_for_rows(&[row_infos], cx).next()
7023 })
7024 .flatten()?;
7025 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7026 let mut element = render_inline_blame_entry(
7027 blame,
7028 blame_entry,
7029 &style,
7030 workspace,
7031 cx,
7032 );
7033 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7034 Some(
7035 element
7036 .layout_as_root(AvailableSpace::min_size(), window, cx)
7037 .width
7038 + inline_blame_padding,
7039 )
7040 })
7041 .unwrap_or(Pixels::ZERO);
7042
7043 let longest_line_width = layout_line(
7044 snapshot.longest_row(),
7045 &snapshot,
7046 &style,
7047 editor_width,
7048 is_row_soft_wrapped,
7049 window,
7050 cx,
7051 )
7052 .width;
7053
7054 let scrollbar_range_data = ScrollbarRangeData::new(
7055 scrollbar_bounds,
7056 letter_size,
7057 &snapshot,
7058 longest_line_width,
7059 longest_line_blame_width,
7060 &style,
7061 cx,
7062 );
7063
7064 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7065 let mut scroll_width = scroll_range_bounds.size.width;
7066
7067 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7068 snapshot.sticky_header_excerpt(start_row)
7069 } else {
7070 None
7071 };
7072 let sticky_header_excerpt_id =
7073 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7074
7075 let blocks = window.with_element_namespace("blocks", |window| {
7076 self.render_blocks(
7077 start_row..end_row,
7078 &snapshot,
7079 &hitbox,
7080 &text_hitbox,
7081 editor_width,
7082 &mut scroll_width,
7083 &gutter_dimensions,
7084 em_width,
7085 gutter_dimensions.full_width(),
7086 line_height,
7087 &line_layouts,
7088 &local_selections,
7089 &selected_buffer_ids,
7090 is_row_soft_wrapped,
7091 sticky_header_excerpt_id,
7092 window,
7093 cx,
7094 )
7095 });
7096 let mut blocks = match blocks {
7097 Ok(blocks) => blocks,
7098 Err(resized_blocks) => {
7099 self.editor.update(cx, |editor, cx| {
7100 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7101 });
7102 return self.prepaint(None, bounds, &mut (), window, cx);
7103 }
7104 };
7105
7106 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7107 window.with_element_namespace("blocks", |window| {
7108 self.layout_sticky_buffer_header(
7109 sticky_header_excerpt,
7110 scroll_position.y,
7111 line_height,
7112 &snapshot,
7113 &hitbox,
7114 &selected_buffer_ids,
7115 window,
7116 cx,
7117 )
7118 })
7119 });
7120
7121 let start_buffer_row =
7122 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7123 let end_buffer_row =
7124 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7125
7126 let scroll_max = point(
7127 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7128 max_row.as_f32(),
7129 );
7130
7131 self.editor.update(cx, |editor, cx| {
7132 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7133
7134 let autoscrolled = if autoscroll_horizontally {
7135 editor.autoscroll_horizontally(
7136 start_row,
7137 editor_width - (letter_size.width / 2.0),
7138 scroll_width,
7139 em_width,
7140 &line_layouts,
7141 cx,
7142 )
7143 } else {
7144 false
7145 };
7146
7147 if clamped || autoscrolled {
7148 snapshot = editor.snapshot(window, cx);
7149 scroll_position = snapshot.scroll_position();
7150 }
7151 });
7152
7153 let scroll_pixel_position = point(
7154 scroll_position.x * em_width,
7155 scroll_position.y * line_height,
7156 );
7157
7158 let indent_guides = self.layout_indent_guides(
7159 content_origin,
7160 text_hitbox.origin,
7161 start_buffer_row..end_buffer_row,
7162 scroll_pixel_position,
7163 line_height,
7164 &snapshot,
7165 window,
7166 cx,
7167 );
7168
7169 let crease_trailers =
7170 window.with_element_namespace("crease_trailers", |window| {
7171 self.prepaint_crease_trailers(
7172 crease_trailers,
7173 &line_layouts,
7174 line_height,
7175 content_origin,
7176 scroll_pixel_position,
7177 em_width,
7178 window,
7179 cx,
7180 )
7181 });
7182
7183 let mut inline_blame = None;
7184 if let Some(newest_selection_head) = newest_selection_head {
7185 let display_row = newest_selection_head.row();
7186 if (start_row..end_row).contains(&display_row) {
7187 let line_ix = display_row.minus(start_row) as usize;
7188 let row_info = &row_infos[line_ix];
7189 let line_layout = &line_layouts[line_ix];
7190 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7191 inline_blame = self.layout_inline_blame(
7192 display_row,
7193 row_info,
7194 line_layout,
7195 crease_trailer_layout,
7196 em_width,
7197 content_origin,
7198 scroll_pixel_position,
7199 line_height,
7200 window,
7201 cx,
7202 );
7203 }
7204 }
7205
7206 let blamed_display_rows = self.layout_blame_entries(
7207 &row_infos,
7208 em_width,
7209 scroll_position,
7210 line_height,
7211 &gutter_hitbox,
7212 gutter_dimensions.git_blame_entries_width,
7213 window,
7214 cx,
7215 );
7216
7217 let scroll_max = point(
7218 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7219 max_scroll_top,
7220 );
7221
7222 self.editor.update(cx, |editor, cx| {
7223 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7224
7225 let autoscrolled = if autoscroll_horizontally {
7226 editor.autoscroll_horizontally(
7227 start_row,
7228 editor_width - (letter_size.width / 2.0),
7229 scroll_width,
7230 em_width,
7231 &line_layouts,
7232 cx,
7233 )
7234 } else {
7235 false
7236 };
7237
7238 if clamped || autoscrolled {
7239 snapshot = editor.snapshot(window, cx);
7240 scroll_position = snapshot.scroll_position();
7241 }
7242 });
7243
7244 let line_elements = self.prepaint_lines(
7245 start_row,
7246 &mut line_layouts,
7247 line_height,
7248 scroll_pixel_position,
7249 content_origin,
7250 window,
7251 cx,
7252 );
7253
7254 let mut block_start_rows = HashSet::default();
7255
7256 window.with_element_namespace("blocks", |window| {
7257 self.layout_blocks(
7258 &mut blocks,
7259 &mut block_start_rows,
7260 &hitbox,
7261 line_height,
7262 scroll_pixel_position,
7263 window,
7264 cx,
7265 );
7266 });
7267
7268 let cursors = self.collect_cursors(&snapshot, cx);
7269 let visible_row_range = start_row..end_row;
7270 let non_visible_cursors = cursors
7271 .iter()
7272 .any(move |c| !visible_row_range.contains(&c.0.row()));
7273
7274 let visible_cursors = self.layout_visible_cursors(
7275 &snapshot,
7276 &selections,
7277 &block_start_rows,
7278 start_row..end_row,
7279 &line_layouts,
7280 &text_hitbox,
7281 content_origin,
7282 scroll_position,
7283 scroll_pixel_position,
7284 line_height,
7285 em_width,
7286 em_advance,
7287 autoscroll_containing_element,
7288 window,
7289 cx,
7290 );
7291
7292 let scrollbars_layout = self.layout_scrollbars(
7293 &snapshot,
7294 scrollbar_range_data,
7295 scroll_position,
7296 non_visible_cursors,
7297 window,
7298 cx,
7299 );
7300
7301 let gutter_settings = EditorSettings::get_global(cx).gutter;
7302
7303 let rows_with_hunk_bounds = display_hunks
7304 .iter()
7305 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7306 .fold(
7307 HashMap::default(),
7308 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7309 match hunk {
7310 DisplayDiffHunk::Folded { display_row } => {
7311 rows_with_hunk_bounds.insert(*display_row, bounds);
7312 }
7313 DisplayDiffHunk::Unfolded {
7314 display_row_range, ..
7315 } => {
7316 for display_row in display_row_range.iter_rows() {
7317 rows_with_hunk_bounds.insert(display_row, bounds);
7318 }
7319 }
7320 }
7321 rows_with_hunk_bounds
7322 },
7323 );
7324 let mut code_actions_indicator = None;
7325 if let Some(newest_selection_head) = newest_selection_head {
7326 let newest_selection_point =
7327 newest_selection_head.to_point(&snapshot.display_snapshot);
7328
7329 if (start_row..end_row).contains(&newest_selection_head.row()) {
7330 self.layout_cursor_popovers(
7331 line_height,
7332 &text_hitbox,
7333 content_origin,
7334 start_row,
7335 scroll_pixel_position,
7336 &line_layouts,
7337 newest_selection_head,
7338 newest_selection_point,
7339 &style,
7340 window,
7341 cx,
7342 );
7343
7344 let show_code_actions = snapshot
7345 .show_code_actions
7346 .unwrap_or(gutter_settings.code_actions);
7347 if show_code_actions {
7348 let newest_selection_point =
7349 newest_selection_head.to_point(&snapshot.display_snapshot);
7350 if !snapshot
7351 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7352 {
7353 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7354 MultiBufferRow(newest_selection_point.row),
7355 );
7356 if let Some((buffer, range)) = buffer {
7357 let buffer_id = buffer.remote_id();
7358 let row = range.start.row;
7359 let has_test_indicator = self
7360 .editor
7361 .read(cx)
7362 .tasks
7363 .contains_key(&(buffer_id, row));
7364
7365 if !has_test_indicator {
7366 code_actions_indicator = self
7367 .layout_code_actions_indicator(
7368 line_height,
7369 newest_selection_head,
7370 scroll_pixel_position,
7371 &gutter_dimensions,
7372 &gutter_hitbox,
7373 &rows_with_hunk_bounds,
7374 window,
7375 cx,
7376 );
7377 }
7378 }
7379 }
7380 }
7381 }
7382 }
7383
7384 self.layout_gutter_menu(
7385 line_height,
7386 &text_hitbox,
7387 content_origin,
7388 scroll_pixel_position,
7389 gutter_dimensions.width - gutter_dimensions.left_padding,
7390 window,
7391 cx,
7392 );
7393
7394 let test_indicators = if gutter_settings.runnables {
7395 self.layout_run_indicators(
7396 line_height,
7397 start_row..end_row,
7398 scroll_pixel_position,
7399 &gutter_dimensions,
7400 &gutter_hitbox,
7401 &rows_with_hunk_bounds,
7402 &snapshot,
7403 window,
7404 cx,
7405 )
7406 } else {
7407 Vec::new()
7408 };
7409
7410 self.layout_signature_help(
7411 &hitbox,
7412 content_origin,
7413 scroll_pixel_position,
7414 newest_selection_head,
7415 start_row,
7416 &line_layouts,
7417 line_height,
7418 em_width,
7419 window,
7420 cx,
7421 );
7422
7423 if !cx.has_active_drag() {
7424 self.layout_hover_popovers(
7425 &snapshot,
7426 &hitbox,
7427 &text_hitbox,
7428 start_row..end_row,
7429 content_origin,
7430 scroll_pixel_position,
7431 &line_layouts,
7432 line_height,
7433 em_width,
7434 window,
7435 cx,
7436 );
7437 }
7438
7439 let inline_completion_popover = self.layout_inline_completion_popover(
7440 &text_hitbox.bounds,
7441 &snapshot,
7442 start_row..end_row,
7443 scroll_position.y,
7444 scroll_position.y + height_in_lines,
7445 &line_layouts,
7446 line_height,
7447 scroll_pixel_position,
7448 newest_selection_head,
7449 editor_width,
7450 &style,
7451 window,
7452 cx,
7453 );
7454
7455 let mouse_context_menu = self.layout_mouse_context_menu(
7456 &snapshot,
7457 start_row..end_row,
7458 content_origin,
7459 window,
7460 cx,
7461 );
7462
7463 window.with_element_namespace("crease_toggles", |window| {
7464 self.prepaint_crease_toggles(
7465 &mut crease_toggles,
7466 line_height,
7467 &gutter_dimensions,
7468 gutter_settings,
7469 scroll_pixel_position,
7470 &gutter_hitbox,
7471 window,
7472 cx,
7473 )
7474 });
7475
7476 let invisible_symbol_font_size = font_size / 2.;
7477 let tab_invisible = window
7478 .text_system()
7479 .shape_line(
7480 "→".into(),
7481 invisible_symbol_font_size,
7482 &[TextRun {
7483 len: "→".len(),
7484 font: self.style.text.font(),
7485 color: cx.theme().colors().editor_invisible,
7486 background_color: None,
7487 underline: None,
7488 strikethrough: None,
7489 }],
7490 )
7491 .unwrap();
7492 let space_invisible = window
7493 .text_system()
7494 .shape_line(
7495 "•".into(),
7496 invisible_symbol_font_size,
7497 &[TextRun {
7498 len: "•".len(),
7499 font: self.style.text.font(),
7500 color: cx.theme().colors().editor_invisible,
7501 background_color: None,
7502 underline: None,
7503 strikethrough: None,
7504 }],
7505 )
7506 .unwrap();
7507
7508 let mode = snapshot.mode;
7509
7510 let position_map = Rc::new(PositionMap {
7511 size: bounds.size,
7512 scroll_pixel_position,
7513 scroll_max,
7514 line_layouts,
7515 line_height,
7516 em_width,
7517 em_advance,
7518 snapshot,
7519 gutter_hitbox: gutter_hitbox.clone(),
7520 text_hitbox: text_hitbox.clone(),
7521 });
7522
7523 self.editor.update(cx, |editor, _| {
7524 editor.last_position_map = Some(position_map.clone())
7525 });
7526
7527 let hunk_controls = self.layout_diff_hunk_controls(
7528 start_row..end_row,
7529 &row_infos,
7530 &text_hitbox,
7531 &position_map,
7532 newest_selection_head,
7533 line_height,
7534 scroll_pixel_position,
7535 &display_hunks,
7536 self.editor.clone(),
7537 window,
7538 cx,
7539 );
7540
7541 EditorLayout {
7542 mode,
7543 position_map,
7544 visible_display_row_range: start_row..end_row,
7545 wrap_guides,
7546 indent_guides,
7547 hitbox,
7548 gutter_hitbox,
7549 display_hunks,
7550 content_origin,
7551 scrollbars_layout,
7552 active_rows,
7553 highlighted_rows,
7554 highlighted_ranges,
7555 highlighted_gutter_ranges,
7556 redacted_ranges,
7557 line_elements,
7558 line_numbers,
7559 blamed_display_rows,
7560 inline_blame,
7561 blocks,
7562 cursors,
7563 visible_cursors,
7564 selections,
7565 inline_completion_popover,
7566 diff_hunk_controls: hunk_controls,
7567 mouse_context_menu,
7568 test_indicators,
7569 code_actions_indicator,
7570 crease_toggles,
7571 crease_trailers,
7572 tab_invisible,
7573 space_invisible,
7574 sticky_buffer_header,
7575 }
7576 })
7577 })
7578 })
7579 }
7580
7581 fn paint(
7582 &mut self,
7583 _: Option<&GlobalElementId>,
7584 bounds: Bounds<gpui::Pixels>,
7585 _: &mut Self::RequestLayoutState,
7586 layout: &mut Self::PrepaintState,
7587 window: &mut Window,
7588 cx: &mut App,
7589 ) {
7590 let focus_handle = self.editor.focus_handle(cx);
7591 let key_context = self
7592 .editor
7593 .update(cx, |editor, cx| editor.key_context(window, cx));
7594
7595 window.set_key_context(key_context);
7596 window.handle_input(
7597 &focus_handle,
7598 ElementInputHandler::new(bounds, self.editor.clone()),
7599 cx,
7600 );
7601 self.register_actions(window, cx);
7602 self.register_key_listeners(window, cx, layout);
7603
7604 let text_style = TextStyleRefinement {
7605 font_size: Some(self.style.text.font_size),
7606 line_height: Some(self.style.text.line_height),
7607 ..Default::default()
7608 };
7609 let rem_size = self.rem_size(cx);
7610 window.with_rem_size(rem_size, |window| {
7611 window.with_text_style(Some(text_style), |window| {
7612 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7613 self.paint_mouse_listeners(layout, window, cx);
7614 self.paint_background(layout, window, cx);
7615 self.paint_indent_guides(layout, window, cx);
7616
7617 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7618 self.paint_blamed_display_rows(layout, window, cx);
7619 self.paint_line_numbers(layout, window, cx);
7620 }
7621
7622 self.paint_text(layout, window, cx);
7623
7624 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7625 self.paint_gutter_highlights(layout, window, cx);
7626 self.paint_gutter_indicators(layout, window, cx);
7627 }
7628
7629 if !layout.blocks.is_empty() {
7630 window.with_element_namespace("blocks", |window| {
7631 self.paint_blocks(layout, window, cx);
7632 });
7633 }
7634
7635 window.with_element_namespace("blocks", |window| {
7636 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7637 sticky_header.paint(window, cx)
7638 }
7639 });
7640
7641 self.paint_scrollbars(layout, window, cx);
7642 self.paint_inline_completion_popover(layout, window, cx);
7643 self.paint_mouse_context_menu(layout, window, cx);
7644 });
7645 })
7646 })
7647 }
7648}
7649
7650pub(super) fn gutter_bounds(
7651 editor_bounds: Bounds<Pixels>,
7652 gutter_dimensions: GutterDimensions,
7653) -> Bounds<Pixels> {
7654 Bounds {
7655 origin: editor_bounds.origin,
7656 size: size(gutter_dimensions.width, editor_bounds.size.height),
7657 }
7658}
7659
7660struct ScrollbarRangeData {
7661 scrollbar_bounds: Bounds<Pixels>,
7662 scroll_range: Bounds<Pixels>,
7663 letter_size: Size<Pixels>,
7664}
7665
7666impl ScrollbarRangeData {
7667 pub fn new(
7668 scrollbar_bounds: Bounds<Pixels>,
7669 letter_size: Size<Pixels>,
7670 snapshot: &EditorSnapshot,
7671 longest_line_width: Pixels,
7672 longest_line_blame_width: Pixels,
7673 style: &EditorStyle,
7674
7675 cx: &mut App,
7676 ) -> ScrollbarRangeData {
7677 // TODO: Simplify this function down, it requires a lot of parameters
7678 let max_row = snapshot.max_point().row();
7679 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7680
7681 let scrollbar_width = style.scrollbar_width;
7682
7683 let settings = EditorSettings::get_global(cx);
7684 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7685 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7686 ScrollBeyondLastLine::Off => px(1.),
7687 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7688 };
7689
7690 let overscroll = size(
7691 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7692 letter_size.height * scroll_beyond_last_line,
7693 );
7694
7695 let scroll_range = Bounds {
7696 origin: scrollbar_bounds.origin,
7697 size: text_bounds_size + overscroll,
7698 };
7699
7700 ScrollbarRangeData {
7701 scrollbar_bounds,
7702 scroll_range,
7703 letter_size,
7704 }
7705 }
7706}
7707
7708impl IntoElement for EditorElement {
7709 type Element = Self;
7710
7711 fn into_element(self) -> Self::Element {
7712 self
7713 }
7714}
7715
7716pub struct EditorLayout {
7717 position_map: Rc<PositionMap>,
7718 hitbox: Hitbox,
7719 gutter_hitbox: Hitbox,
7720 content_origin: gpui::Point<Pixels>,
7721 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7722 mode: EditorMode,
7723 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7724 indent_guides: Option<Vec<IndentGuideLayout>>,
7725 visible_display_row_range: Range<DisplayRow>,
7726 active_rows: BTreeMap<DisplayRow, bool>,
7727 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7728 line_elements: SmallVec<[AnyElement; 1]>,
7729 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7730 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7731 blamed_display_rows: Option<Vec<AnyElement>>,
7732 inline_blame: Option<AnyElement>,
7733 blocks: Vec<BlockLayout>,
7734 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7735 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7736 redacted_ranges: Vec<Range<DisplayPoint>>,
7737 cursors: Vec<(DisplayPoint, Hsla)>,
7738 visible_cursors: Vec<CursorLayout>,
7739 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7740 code_actions_indicator: Option<AnyElement>,
7741 test_indicators: Vec<AnyElement>,
7742 crease_toggles: Vec<Option<AnyElement>>,
7743 diff_hunk_controls: Vec<AnyElement>,
7744 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7745 inline_completion_popover: Option<AnyElement>,
7746 mouse_context_menu: Option<AnyElement>,
7747 tab_invisible: ShapedLine,
7748 space_invisible: ShapedLine,
7749 sticky_buffer_header: Option<AnyElement>,
7750}
7751
7752impl EditorLayout {
7753 fn line_end_overshoot(&self) -> Pixels {
7754 0.15 * self.position_map.line_height
7755 }
7756}
7757
7758struct LineNumberLayout {
7759 shaped_line: ShapedLine,
7760 hitbox: Option<Hitbox>,
7761 display_row: DisplayRow,
7762}
7763
7764struct ColoredRange<T> {
7765 start: T,
7766 end: T,
7767 color: Hsla,
7768}
7769
7770#[derive(Clone)]
7771struct ScrollbarLayout {
7772 hitbox: Hitbox,
7773 visible_range: Range<f32>,
7774 visible: bool,
7775 text_unit_size: Pixels,
7776 thumb_size: Pixels,
7777 axis: Axis,
7778}
7779
7780impl ScrollbarLayout {
7781 const BORDER_WIDTH: Pixels = px(1.0);
7782 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7783 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7784 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7785
7786 fn thumb_bounds(&self) -> Bounds<Pixels> {
7787 match self.axis {
7788 Axis::Vertical => {
7789 let thumb_top = self.y_for_row(self.visible_range.start);
7790 let thumb_bottom = thumb_top + self.thumb_size;
7791 Bounds::from_corners(
7792 point(self.hitbox.left(), thumb_top),
7793 point(self.hitbox.right(), thumb_bottom),
7794 )
7795 }
7796 Axis::Horizontal => {
7797 let thumb_left =
7798 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7799 let thumb_right = thumb_left + self.thumb_size;
7800 Bounds::from_corners(
7801 point(thumb_left, self.hitbox.top()),
7802 point(thumb_right, self.hitbox.bottom()),
7803 )
7804 }
7805 }
7806 }
7807
7808 fn y_for_row(&self, row: f32) -> Pixels {
7809 self.hitbox.top() + row * self.text_unit_size
7810 }
7811
7812 fn marker_quads_for_ranges(
7813 &self,
7814 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7815 column: Option<usize>,
7816 ) -> Vec<PaintQuad> {
7817 struct MinMax {
7818 min: Pixels,
7819 max: Pixels,
7820 }
7821 let (x_range, height_limit) = if let Some(column) = column {
7822 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7823 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7824 let end = start + column_width;
7825 (
7826 Range { start, end },
7827 MinMax {
7828 min: Self::MIN_MARKER_HEIGHT,
7829 max: px(f32::MAX),
7830 },
7831 )
7832 } else {
7833 (
7834 Range {
7835 start: Self::BORDER_WIDTH,
7836 end: self.hitbox.size.width,
7837 },
7838 MinMax {
7839 min: Self::LINE_MARKER_HEIGHT,
7840 max: Self::LINE_MARKER_HEIGHT,
7841 },
7842 )
7843 };
7844
7845 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7846 let mut pixel_ranges = row_ranges
7847 .into_iter()
7848 .map(|range| {
7849 let start_y = row_to_y(range.start);
7850 let end_y = row_to_y(range.end)
7851 + self
7852 .text_unit_size
7853 .max(height_limit.min)
7854 .min(height_limit.max);
7855 ColoredRange {
7856 start: start_y,
7857 end: end_y,
7858 color: range.color,
7859 }
7860 })
7861 .peekable();
7862
7863 let mut quads = Vec::new();
7864 while let Some(mut pixel_range) = pixel_ranges.next() {
7865 while let Some(next_pixel_range) = pixel_ranges.peek() {
7866 if pixel_range.end >= next_pixel_range.start - px(1.0)
7867 && pixel_range.color == next_pixel_range.color
7868 {
7869 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7870 pixel_ranges.next();
7871 } else {
7872 break;
7873 }
7874 }
7875
7876 let bounds = Bounds::from_corners(
7877 point(x_range.start, pixel_range.start),
7878 point(x_range.end, pixel_range.end),
7879 );
7880 quads.push(quad(
7881 bounds,
7882 Corners::default(),
7883 pixel_range.color,
7884 Edges::default(),
7885 Hsla::transparent_black(),
7886 ));
7887 }
7888
7889 quads
7890 }
7891}
7892
7893struct CreaseTrailerLayout {
7894 element: AnyElement,
7895 bounds: Bounds<Pixels>,
7896}
7897
7898pub(crate) struct PositionMap {
7899 pub size: Size<Pixels>,
7900 pub line_height: Pixels,
7901 pub scroll_pixel_position: gpui::Point<Pixels>,
7902 pub scroll_max: gpui::Point<f32>,
7903 pub em_width: Pixels,
7904 pub em_advance: Pixels,
7905 pub line_layouts: Vec<LineWithInvisibles>,
7906 pub snapshot: EditorSnapshot,
7907 pub text_hitbox: Hitbox,
7908 pub gutter_hitbox: Hitbox,
7909}
7910
7911#[derive(Debug, Copy, Clone)]
7912pub struct PointForPosition {
7913 pub previous_valid: DisplayPoint,
7914 pub next_valid: DisplayPoint,
7915 pub exact_unclipped: DisplayPoint,
7916 pub column_overshoot_after_line_end: u32,
7917}
7918
7919impl PointForPosition {
7920 pub fn as_valid(&self) -> Option<DisplayPoint> {
7921 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7922 Some(self.previous_valid)
7923 } else {
7924 None
7925 }
7926 }
7927}
7928
7929impl PositionMap {
7930 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7931 let text_bounds = self.text_hitbox.bounds;
7932 let scroll_position = self.snapshot.scroll_position();
7933 let position = position - text_bounds.origin;
7934 let y = position.y.max(px(0.)).min(self.size.height);
7935 let x = position.x + (scroll_position.x * self.em_width);
7936 let row = ((y / self.line_height) + scroll_position.y) as u32;
7937
7938 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7939 .line_layouts
7940 .get(row as usize - scroll_position.y as usize)
7941 {
7942 if let Some(ix) = line.index_for_x(x) {
7943 (ix as u32, px(0.))
7944 } else {
7945 (line.len as u32, px(0.).max(x - line.width))
7946 }
7947 } else {
7948 (0, x)
7949 };
7950
7951 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7952 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7953 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7954
7955 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7956 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7957 PointForPosition {
7958 previous_valid,
7959 next_valid,
7960 exact_unclipped,
7961 column_overshoot_after_line_end,
7962 }
7963 }
7964}
7965
7966struct BlockLayout {
7967 id: BlockId,
7968 row: Option<DisplayRow>,
7969 element: AnyElement,
7970 available_space: Size<AvailableSpace>,
7971 style: BlockStyle,
7972}
7973
7974fn layout_line(
7975 row: DisplayRow,
7976 snapshot: &EditorSnapshot,
7977 style: &EditorStyle,
7978 text_width: Pixels,
7979 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7980 window: &mut Window,
7981 cx: &mut App,
7982) -> LineWithInvisibles {
7983 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7984 LineWithInvisibles::from_chunks(
7985 chunks,
7986 &style,
7987 MAX_LINE_LEN,
7988 1,
7989 snapshot.mode,
7990 text_width,
7991 is_row_soft_wrapped,
7992 window,
7993 cx,
7994 )
7995 .pop()
7996 .unwrap()
7997}
7998
7999#[derive(Debug)]
8000pub struct IndentGuideLayout {
8001 origin: gpui::Point<Pixels>,
8002 length: Pixels,
8003 single_indent_width: Pixels,
8004 depth: u32,
8005 active: bool,
8006 settings: IndentGuideSettings,
8007}
8008
8009pub struct CursorLayout {
8010 origin: gpui::Point<Pixels>,
8011 block_width: Pixels,
8012 line_height: Pixels,
8013 color: Hsla,
8014 shape: CursorShape,
8015 block_text: Option<ShapedLine>,
8016 cursor_name: Option<AnyElement>,
8017}
8018
8019#[derive(Debug)]
8020pub struct CursorName {
8021 string: SharedString,
8022 color: Hsla,
8023 is_top_row: bool,
8024}
8025
8026impl CursorLayout {
8027 pub fn new(
8028 origin: gpui::Point<Pixels>,
8029 block_width: Pixels,
8030 line_height: Pixels,
8031 color: Hsla,
8032 shape: CursorShape,
8033 block_text: Option<ShapedLine>,
8034 ) -> CursorLayout {
8035 CursorLayout {
8036 origin,
8037 block_width,
8038 line_height,
8039 color,
8040 shape,
8041 block_text,
8042 cursor_name: None,
8043 }
8044 }
8045
8046 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8047 Bounds {
8048 origin: self.origin + origin,
8049 size: size(self.block_width, self.line_height),
8050 }
8051 }
8052
8053 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8054 match self.shape {
8055 CursorShape::Bar => Bounds {
8056 origin: self.origin + origin,
8057 size: size(px(2.0), self.line_height),
8058 },
8059 CursorShape::Block | CursorShape::Hollow => Bounds {
8060 origin: self.origin + origin,
8061 size: size(self.block_width, self.line_height),
8062 },
8063 CursorShape::Underline => Bounds {
8064 origin: self.origin
8065 + origin
8066 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8067 size: size(self.block_width, px(2.0)),
8068 },
8069 }
8070 }
8071
8072 pub fn layout(
8073 &mut self,
8074 origin: gpui::Point<Pixels>,
8075 cursor_name: Option<CursorName>,
8076 window: &mut Window,
8077 cx: &mut App,
8078 ) {
8079 if let Some(cursor_name) = cursor_name {
8080 let bounds = self.bounds(origin);
8081 let text_size = self.line_height / 1.5;
8082
8083 let name_origin = if cursor_name.is_top_row {
8084 point(bounds.right() - px(1.), bounds.top())
8085 } else {
8086 match self.shape {
8087 CursorShape::Bar => point(
8088 bounds.right() - px(2.),
8089 bounds.top() - text_size / 2. - px(1.),
8090 ),
8091 _ => point(
8092 bounds.right() - px(1.),
8093 bounds.top() - text_size / 2. - px(1.),
8094 ),
8095 }
8096 };
8097 let mut name_element = div()
8098 .bg(self.color)
8099 .text_size(text_size)
8100 .px_0p5()
8101 .line_height(text_size + px(2.))
8102 .text_color(cursor_name.color)
8103 .child(cursor_name.string.clone())
8104 .into_any_element();
8105
8106 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8107
8108 self.cursor_name = Some(name_element);
8109 }
8110 }
8111
8112 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8113 let bounds = self.bounds(origin);
8114
8115 //Draw background or border quad
8116 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8117 outline(bounds, self.color)
8118 } else {
8119 fill(bounds, self.color)
8120 };
8121
8122 if let Some(name) = &mut self.cursor_name {
8123 name.paint(window, cx);
8124 }
8125
8126 window.paint_quad(cursor);
8127
8128 if let Some(block_text) = &self.block_text {
8129 block_text
8130 .paint(self.origin + origin, self.line_height, window, cx)
8131 .log_err();
8132 }
8133 }
8134
8135 pub fn shape(&self) -> CursorShape {
8136 self.shape
8137 }
8138}
8139
8140#[derive(Debug)]
8141pub struct HighlightedRange {
8142 pub start_y: Pixels,
8143 pub line_height: Pixels,
8144 pub lines: Vec<HighlightedRangeLine>,
8145 pub color: Hsla,
8146 pub corner_radius: Pixels,
8147}
8148
8149#[derive(Debug)]
8150pub struct HighlightedRangeLine {
8151 pub start_x: Pixels,
8152 pub end_x: Pixels,
8153}
8154
8155impl HighlightedRange {
8156 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8157 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8158 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8159 self.paint_lines(
8160 self.start_y + self.line_height,
8161 &self.lines[1..],
8162 bounds,
8163 window,
8164 );
8165 } else {
8166 self.paint_lines(self.start_y, &self.lines, bounds, window);
8167 }
8168 }
8169
8170 fn paint_lines(
8171 &self,
8172 start_y: Pixels,
8173 lines: &[HighlightedRangeLine],
8174 _bounds: Bounds<Pixels>,
8175 window: &mut Window,
8176 ) {
8177 if lines.is_empty() {
8178 return;
8179 }
8180
8181 let first_line = lines.first().unwrap();
8182 let last_line = lines.last().unwrap();
8183
8184 let first_top_left = point(first_line.start_x, start_y);
8185 let first_top_right = point(first_line.end_x, start_y);
8186
8187 let curve_height = point(Pixels::ZERO, self.corner_radius);
8188 let curve_width = |start_x: Pixels, end_x: Pixels| {
8189 let max = (end_x - start_x) / 2.;
8190 let width = if max < self.corner_radius {
8191 max
8192 } else {
8193 self.corner_radius
8194 };
8195
8196 point(width, Pixels::ZERO)
8197 };
8198
8199 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8200 let mut builder = gpui::PathBuilder::fill();
8201 builder.curve_to(first_top_right + curve_height, first_top_right);
8202
8203 let mut iter = lines.iter().enumerate().peekable();
8204 while let Some((ix, line)) = iter.next() {
8205 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8206
8207 if let Some((_, next_line)) = iter.peek() {
8208 let next_top_right = point(next_line.end_x, bottom_right.y);
8209
8210 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8211 Ordering::Equal => {
8212 builder.line_to(bottom_right);
8213 }
8214 Ordering::Less => {
8215 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8216 builder.line_to(bottom_right - curve_height);
8217 if self.corner_radius > Pixels::ZERO {
8218 builder.curve_to(bottom_right - curve_width, bottom_right);
8219 }
8220 builder.line_to(next_top_right + curve_width);
8221 if self.corner_radius > Pixels::ZERO {
8222 builder.curve_to(next_top_right + curve_height, next_top_right);
8223 }
8224 }
8225 Ordering::Greater => {
8226 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8227 builder.line_to(bottom_right - curve_height);
8228 if self.corner_radius > Pixels::ZERO {
8229 builder.curve_to(bottom_right + curve_width, bottom_right);
8230 }
8231 builder.line_to(next_top_right - curve_width);
8232 if self.corner_radius > Pixels::ZERO {
8233 builder.curve_to(next_top_right + curve_height, next_top_right);
8234 }
8235 }
8236 }
8237 } else {
8238 let curve_width = curve_width(line.start_x, line.end_x);
8239 builder.line_to(bottom_right - curve_height);
8240 if self.corner_radius > Pixels::ZERO {
8241 builder.curve_to(bottom_right - curve_width, bottom_right);
8242 }
8243
8244 let bottom_left = point(line.start_x, bottom_right.y);
8245 builder.line_to(bottom_left + curve_width);
8246 if self.corner_radius > Pixels::ZERO {
8247 builder.curve_to(bottom_left - curve_height, bottom_left);
8248 }
8249 }
8250 }
8251
8252 if first_line.start_x > last_line.start_x {
8253 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8254 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8255 builder.line_to(second_top_left + curve_height);
8256 if self.corner_radius > Pixels::ZERO {
8257 builder.curve_to(second_top_left + curve_width, second_top_left);
8258 }
8259 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8260 builder.line_to(first_bottom_left - curve_width);
8261 if self.corner_radius > Pixels::ZERO {
8262 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8263 }
8264 }
8265
8266 builder.line_to(first_top_left + curve_height);
8267 if self.corner_radius > Pixels::ZERO {
8268 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8269 }
8270 builder.line_to(first_top_right - top_curve_width);
8271
8272 if let Ok(path) = builder.build() {
8273 window.paint_path(path, self.color);
8274 }
8275 }
8276}
8277
8278enum CursorPopoverType {
8279 CodeContextMenu,
8280 EditPrediction,
8281}
8282
8283pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8284 (delta.pow(1.5) / 100.0).into()
8285}
8286
8287fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8288 (delta.pow(1.2) / 300.0).into()
8289}
8290
8291pub fn register_action<T: Action>(
8292 editor: &Entity<Editor>,
8293 window: &mut Window,
8294 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8295) {
8296 let editor = editor.clone();
8297 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8298 let action = action.downcast_ref().unwrap();
8299 if phase == DispatchPhase::Bubble {
8300 editor.update(cx, |editor, cx| {
8301 listener(editor, action, window, cx);
8302 })
8303 }
8304 })
8305}
8306
8307fn compute_auto_height_layout(
8308 editor: &mut Editor,
8309 max_lines: usize,
8310 max_line_number_width: Pixels,
8311 known_dimensions: Size<Option<Pixels>>,
8312 available_width: AvailableSpace,
8313 window: &mut Window,
8314 cx: &mut Context<Editor>,
8315) -> Option<Size<Pixels>> {
8316 let width = known_dimensions.width.or({
8317 if let AvailableSpace::Definite(available_width) = available_width {
8318 Some(available_width)
8319 } else {
8320 None
8321 }
8322 })?;
8323 if let Some(height) = known_dimensions.height {
8324 return Some(size(width, height));
8325 }
8326
8327 let style = editor.style.as_ref().unwrap();
8328 let font_id = window.text_system().resolve_font(&style.text.font());
8329 let font_size = style.text.font_size.to_pixels(window.rem_size());
8330 let line_height = style.text.line_height_in_pixels(window.rem_size());
8331 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8332
8333 let mut snapshot = editor.snapshot(window, cx);
8334 let gutter_dimensions = snapshot
8335 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8336 .unwrap_or_default();
8337
8338 editor.gutter_dimensions = gutter_dimensions;
8339 let text_width = width - gutter_dimensions.width;
8340 let overscroll = size(em_width, px(0.));
8341
8342 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8343 if editor.set_wrap_width(Some(editor_width), cx) {
8344 snapshot = editor.snapshot(window, cx);
8345 }
8346
8347 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8348 let height = scroll_height
8349 .max(line_height)
8350 .min(line_height * max_lines as f32);
8351
8352 Some(size(width, height))
8353}
8354
8355#[cfg(test)]
8356mod tests {
8357 use super::*;
8358 use crate::{
8359 display_map::{BlockPlacement, BlockProperties},
8360 editor_tests::{init_test, update_test_language_settings},
8361 Editor, MultiBuffer,
8362 };
8363 use gpui::{TestAppContext, VisualTestContext};
8364 use language::language_settings;
8365 use log::info;
8366 use similar::DiffableStr;
8367 use std::num::NonZeroU32;
8368 use util::test::sample_text;
8369
8370 #[gpui::test]
8371 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8372 init_test(cx, |_| {});
8373 let window = cx.add_window(|window, cx| {
8374 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8375 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8376 });
8377
8378 let editor = window.root(cx).unwrap();
8379 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8380 let line_height = window
8381 .update(cx, |_, window, _| {
8382 style.text.line_height_in_pixels(window.rem_size())
8383 })
8384 .unwrap();
8385 let element = EditorElement::new(&editor, style);
8386 let snapshot = window
8387 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8388 .unwrap();
8389
8390 let layouts = cx
8391 .update_window(*window, |_, window, cx| {
8392 element.layout_line_numbers(
8393 None,
8394 GutterDimensions {
8395 left_padding: Pixels::ZERO,
8396 right_padding: Pixels::ZERO,
8397 width: px(30.0),
8398 margin: Pixels::ZERO,
8399 git_blame_entries_width: None,
8400 },
8401 line_height,
8402 gpui::Point::default(),
8403 DisplayRow(0)..DisplayRow(6),
8404 &(0..6)
8405 .map(|row| RowInfo {
8406 buffer_row: Some(row),
8407 ..Default::default()
8408 })
8409 .collect::<Vec<_>>(),
8410 Some(DisplayPoint::new(DisplayRow(0), 0)),
8411 &snapshot,
8412 window,
8413 cx,
8414 )
8415 })
8416 .unwrap();
8417 assert_eq!(layouts.len(), 6);
8418
8419 let relative_rows = window
8420 .update(cx, |editor, window, cx| {
8421 let snapshot = editor.snapshot(window, cx);
8422 element.calculate_relative_line_numbers(
8423 &snapshot,
8424 &(DisplayRow(0)..DisplayRow(6)),
8425 Some(DisplayRow(3)),
8426 )
8427 })
8428 .unwrap();
8429 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8430 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8431 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8432 // current line has no relative number
8433 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8434 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8435
8436 // works if cursor is before screen
8437 let relative_rows = window
8438 .update(cx, |editor, window, cx| {
8439 let snapshot = editor.snapshot(window, cx);
8440 element.calculate_relative_line_numbers(
8441 &snapshot,
8442 &(DisplayRow(3)..DisplayRow(6)),
8443 Some(DisplayRow(1)),
8444 )
8445 })
8446 .unwrap();
8447 assert_eq!(relative_rows.len(), 3);
8448 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8449 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8450 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8451
8452 // works if cursor is after screen
8453 let relative_rows = window
8454 .update(cx, |editor, window, cx| {
8455 let snapshot = editor.snapshot(window, cx);
8456 element.calculate_relative_line_numbers(
8457 &snapshot,
8458 &(DisplayRow(0)..DisplayRow(3)),
8459 Some(DisplayRow(6)),
8460 )
8461 })
8462 .unwrap();
8463 assert_eq!(relative_rows.len(), 3);
8464 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8465 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8466 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8467 }
8468
8469 #[gpui::test]
8470 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8471 init_test(cx, |_| {});
8472
8473 let window = cx.add_window(|window, cx| {
8474 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8475 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8476 });
8477 let cx = &mut VisualTestContext::from_window(*window, cx);
8478 let editor = window.root(cx).unwrap();
8479 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8480
8481 window
8482 .update(cx, |editor, window, cx| {
8483 editor.cursor_shape = CursorShape::Block;
8484 editor.change_selections(None, window, cx, |s| {
8485 s.select_ranges([
8486 Point::new(0, 0)..Point::new(1, 0),
8487 Point::new(3, 2)..Point::new(3, 3),
8488 Point::new(5, 6)..Point::new(6, 0),
8489 ]);
8490 });
8491 })
8492 .unwrap();
8493
8494 let (_, state) = cx.draw(
8495 point(px(500.), px(500.)),
8496 size(px(500.), px(500.)),
8497 |_, _| EditorElement::new(&editor, style),
8498 );
8499
8500 assert_eq!(state.selections.len(), 1);
8501 let local_selections = &state.selections[0].1;
8502 assert_eq!(local_selections.len(), 3);
8503 // moves cursor back one line
8504 assert_eq!(
8505 local_selections[0].head,
8506 DisplayPoint::new(DisplayRow(0), 6)
8507 );
8508 assert_eq!(
8509 local_selections[0].range,
8510 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8511 );
8512
8513 // moves cursor back one column
8514 assert_eq!(
8515 local_selections[1].range,
8516 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8517 );
8518 assert_eq!(
8519 local_selections[1].head,
8520 DisplayPoint::new(DisplayRow(3), 2)
8521 );
8522
8523 // leaves cursor on the max point
8524 assert_eq!(
8525 local_selections[2].range,
8526 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8527 );
8528 assert_eq!(
8529 local_selections[2].head,
8530 DisplayPoint::new(DisplayRow(6), 0)
8531 );
8532
8533 // active lines does not include 1 (even though the range of the selection does)
8534 assert_eq!(
8535 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8536 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8537 );
8538
8539 // multi-buffer support
8540 // in DisplayPoint coordinates, this is what we're dealing with:
8541 // 0: [[file
8542 // 1: header
8543 // 2: section]]
8544 // 3: aaaaaa
8545 // 4: bbbbbb
8546 // 5: cccccc
8547 // 6:
8548 // 7: [[footer]]
8549 // 8: [[header]]
8550 // 9: ffffff
8551 // 10: gggggg
8552 // 11: hhhhhh
8553 // 12:
8554 // 13: [[footer]]
8555 // 14: [[file
8556 // 15: header
8557 // 16: section]]
8558 // 17: bbbbbb
8559 // 18: cccccc
8560 // 19: dddddd
8561 // 20: [[footer]]
8562 let window = cx.add_window(|window, cx| {
8563 let buffer = MultiBuffer::build_multi(
8564 [
8565 (
8566 &(sample_text(8, 6, 'a') + "\n"),
8567 vec![
8568 Point::new(0, 0)..Point::new(3, 0),
8569 Point::new(4, 0)..Point::new(7, 0),
8570 ],
8571 ),
8572 (
8573 &(sample_text(8, 6, 'a') + "\n"),
8574 vec![Point::new(1, 0)..Point::new(3, 0)],
8575 ),
8576 ],
8577 cx,
8578 );
8579 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8580 });
8581 let editor = window.root(cx).unwrap();
8582 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8583 let _state = window.update(cx, |editor, window, cx| {
8584 editor.cursor_shape = CursorShape::Block;
8585 editor.change_selections(None, window, cx, |s| {
8586 s.select_display_ranges([
8587 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8588 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8589 ]);
8590 });
8591 });
8592
8593 let (_, state) = cx.draw(
8594 point(px(500.), px(500.)),
8595 size(px(500.), px(500.)),
8596 |_, _| EditorElement::new(&editor, style),
8597 );
8598 assert_eq!(state.selections.len(), 1);
8599 let local_selections = &state.selections[0].1;
8600 assert_eq!(local_selections.len(), 2);
8601
8602 // moves cursor on excerpt boundary back a line
8603 // and doesn't allow selection to bleed through
8604 assert_eq!(
8605 local_selections[0].range,
8606 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8607 );
8608 assert_eq!(
8609 local_selections[0].head,
8610 DisplayPoint::new(DisplayRow(6), 0)
8611 );
8612 // moves cursor on buffer boundary back two lines
8613 // and doesn't allow selection to bleed through
8614 assert_eq!(
8615 local_selections[1].range,
8616 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8617 );
8618 assert_eq!(
8619 local_selections[1].head,
8620 DisplayPoint::new(DisplayRow(12), 0)
8621 );
8622 }
8623
8624 #[gpui::test]
8625 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8626 init_test(cx, |_| {});
8627
8628 let window = cx.add_window(|window, cx| {
8629 let buffer = MultiBuffer::build_simple("", cx);
8630 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8631 });
8632 let cx = &mut VisualTestContext::from_window(*window, cx);
8633 let editor = window.root(cx).unwrap();
8634 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8635 window
8636 .update(cx, |editor, window, cx| {
8637 editor.set_placeholder_text("hello", cx);
8638 editor.insert_blocks(
8639 [BlockProperties {
8640 style: BlockStyle::Fixed,
8641 placement: BlockPlacement::Above(Anchor::min()),
8642 height: 3,
8643 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8644 priority: 0,
8645 }],
8646 None,
8647 cx,
8648 );
8649
8650 // Blur the editor so that it displays placeholder text.
8651 window.blur();
8652 })
8653 .unwrap();
8654
8655 let (_, state) = cx.draw(
8656 point(px(500.), px(500.)),
8657 size(px(500.), px(500.)),
8658 |_, _| EditorElement::new(&editor, style),
8659 );
8660 assert_eq!(state.position_map.line_layouts.len(), 4);
8661 assert_eq!(state.line_numbers.len(), 1);
8662 assert_eq!(
8663 state
8664 .line_numbers
8665 .get(&MultiBufferRow(0))
8666 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8667 Some("1")
8668 );
8669 }
8670
8671 #[gpui::test]
8672 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8673 const TAB_SIZE: u32 = 4;
8674
8675 let input_text = "\t \t|\t| a b";
8676 let expected_invisibles = vec![
8677 Invisible::Tab {
8678 line_start_offset: 0,
8679 line_end_offset: TAB_SIZE as usize,
8680 },
8681 Invisible::Whitespace {
8682 line_offset: TAB_SIZE as usize,
8683 },
8684 Invisible::Tab {
8685 line_start_offset: TAB_SIZE as usize + 1,
8686 line_end_offset: TAB_SIZE as usize * 2,
8687 },
8688 Invisible::Tab {
8689 line_start_offset: TAB_SIZE as usize * 2 + 1,
8690 line_end_offset: TAB_SIZE as usize * 3,
8691 },
8692 Invisible::Whitespace {
8693 line_offset: TAB_SIZE as usize * 3 + 1,
8694 },
8695 Invisible::Whitespace {
8696 line_offset: TAB_SIZE as usize * 3 + 3,
8697 },
8698 ];
8699 assert_eq!(
8700 expected_invisibles.len(),
8701 input_text
8702 .chars()
8703 .filter(|initial_char| initial_char.is_whitespace())
8704 .count(),
8705 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8706 );
8707
8708 for show_line_numbers in [true, false] {
8709 init_test(cx, |s| {
8710 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8711 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8712 });
8713
8714 let actual_invisibles = collect_invisibles_from_new_editor(
8715 cx,
8716 EditorMode::Full,
8717 input_text,
8718 px(500.0),
8719 show_line_numbers,
8720 );
8721
8722 assert_eq!(expected_invisibles, actual_invisibles);
8723 }
8724 }
8725
8726 #[gpui::test]
8727 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8728 init_test(cx, |s| {
8729 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8730 s.defaults.tab_size = NonZeroU32::new(4);
8731 });
8732
8733 for editor_mode_without_invisibles in [
8734 EditorMode::SingleLine { auto_width: false },
8735 EditorMode::AutoHeight { max_lines: 100 },
8736 ] {
8737 for show_line_numbers in [true, false] {
8738 let invisibles = collect_invisibles_from_new_editor(
8739 cx,
8740 editor_mode_without_invisibles,
8741 "\t\t\t| | a b",
8742 px(500.0),
8743 show_line_numbers,
8744 );
8745 assert!(invisibles.is_empty(),
8746 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8747 }
8748 }
8749 }
8750
8751 #[gpui::test]
8752 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8753 let tab_size = 4;
8754 let input_text = "a\tbcd ".repeat(9);
8755 let repeated_invisibles = [
8756 Invisible::Tab {
8757 line_start_offset: 1,
8758 line_end_offset: tab_size as usize,
8759 },
8760 Invisible::Whitespace {
8761 line_offset: tab_size as usize + 3,
8762 },
8763 Invisible::Whitespace {
8764 line_offset: tab_size as usize + 4,
8765 },
8766 Invisible::Whitespace {
8767 line_offset: tab_size as usize + 5,
8768 },
8769 Invisible::Whitespace {
8770 line_offset: tab_size as usize + 6,
8771 },
8772 Invisible::Whitespace {
8773 line_offset: tab_size as usize + 7,
8774 },
8775 ];
8776 let expected_invisibles = std::iter::once(repeated_invisibles)
8777 .cycle()
8778 .take(9)
8779 .flatten()
8780 .collect::<Vec<_>>();
8781 assert_eq!(
8782 expected_invisibles.len(),
8783 input_text
8784 .chars()
8785 .filter(|initial_char| initial_char.is_whitespace())
8786 .count(),
8787 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8788 );
8789 info!("Expected invisibles: {expected_invisibles:?}");
8790
8791 init_test(cx, |_| {});
8792
8793 // Put the same string with repeating whitespace pattern into editors of various size,
8794 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8795 let resize_step = 10.0;
8796 let mut editor_width = 200.0;
8797 while editor_width <= 1000.0 {
8798 for show_line_numbers in [true, false] {
8799 update_test_language_settings(cx, |s| {
8800 s.defaults.tab_size = NonZeroU32::new(tab_size);
8801 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8802 s.defaults.preferred_line_length = Some(editor_width as u32);
8803 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8804 });
8805
8806 let actual_invisibles = collect_invisibles_from_new_editor(
8807 cx,
8808 EditorMode::Full,
8809 &input_text,
8810 px(editor_width),
8811 show_line_numbers,
8812 );
8813
8814 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8815 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8816 let mut i = 0;
8817 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8818 i = actual_index;
8819 match expected_invisibles.get(i) {
8820 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8821 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8822 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8823 _ => {
8824 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8825 }
8826 },
8827 None => {
8828 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8829 }
8830 }
8831 }
8832 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8833 assert!(
8834 missing_expected_invisibles.is_empty(),
8835 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8836 );
8837
8838 editor_width += resize_step;
8839 }
8840 }
8841 }
8842
8843 fn collect_invisibles_from_new_editor(
8844 cx: &mut TestAppContext,
8845 editor_mode: EditorMode,
8846 input_text: &str,
8847 editor_width: Pixels,
8848 show_line_numbers: bool,
8849 ) -> Vec<Invisible> {
8850 info!(
8851 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8852 editor_width.0
8853 );
8854 let window = cx.add_window(|window, cx| {
8855 let buffer = MultiBuffer::build_simple(input_text, cx);
8856 Editor::new(editor_mode, buffer, None, true, window, cx)
8857 });
8858 let cx = &mut VisualTestContext::from_window(*window, cx);
8859 let editor = window.root(cx).unwrap();
8860
8861 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8862 window
8863 .update(cx, |editor, _, cx| {
8864 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8865 editor.set_wrap_width(Some(editor_width), cx);
8866 editor.set_show_line_numbers(show_line_numbers, cx);
8867 })
8868 .unwrap();
8869 let (_, state) = cx.draw(
8870 point(px(500.), px(500.)),
8871 size(px(500.), px(500.)),
8872 |_, _| EditorElement::new(&editor, style),
8873 );
8874 state
8875 .position_map
8876 .line_layouts
8877 .iter()
8878 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8879 .cloned()
8880 .collect()
8881 }
8882}
8883
8884fn diff_hunk_controls(
8885 row: u32,
8886 hunk_range: Range<Anchor>,
8887 line_height: Pixels,
8888 editor: &Entity<Editor>,
8889 cx: &mut App,
8890) -> AnyElement {
8891 h_flex()
8892 .h(line_height)
8893 .mr_1()
8894 .gap_1()
8895 .px_1()
8896 .pb_1()
8897 .border_b_1()
8898 .border_color(cx.theme().colors().border_variant)
8899 .rounded_b_lg()
8900 .bg(cx.theme().colors().editor_background)
8901 .gap_1()
8902 .child(
8903 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8904 .shape(IconButtonShape::Square)
8905 .icon_size(IconSize::Small)
8906 // .disabled(!has_multiple_hunks)
8907 .tooltip({
8908 let focus_handle = editor.focus_handle(cx);
8909 move |window, cx| {
8910 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8911 }
8912 })
8913 .on_click({
8914 let editor = editor.clone();
8915 move |_event, window, cx| {
8916 editor.update(cx, |editor, cx| {
8917 let snapshot = editor.snapshot(window, cx);
8918 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8919 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8920 editor.expand_selected_diff_hunks(cx);
8921 });
8922 }
8923 }),
8924 )
8925 .child(
8926 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8927 .shape(IconButtonShape::Square)
8928 .icon_size(IconSize::Small)
8929 // .disabled(!has_multiple_hunks)
8930 .tooltip({
8931 let focus_handle = editor.focus_handle(cx);
8932 move |window, cx| {
8933 Tooltip::for_action_in(
8934 "Previous Hunk",
8935 &GoToPrevHunk,
8936 &focus_handle,
8937 window,
8938 cx,
8939 )
8940 }
8941 })
8942 .on_click({
8943 let editor = editor.clone();
8944 move |_event, window, cx| {
8945 editor.update(cx, |editor, cx| {
8946 let snapshot = editor.snapshot(window, cx);
8947 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8948 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8949 editor.expand_selected_diff_hunks(cx);
8950 });
8951 }
8952 }),
8953 )
8954 .child(
8955 IconButton::new("discard", IconName::Undo)
8956 .shape(IconButtonShape::Square)
8957 .icon_size(IconSize::Small)
8958 .tooltip({
8959 let focus_handle = editor.focus_handle(cx);
8960 move |window, cx| {
8961 Tooltip::for_action_in(
8962 "Discard Hunk",
8963 &RevertSelectedHunks,
8964 &focus_handle,
8965 window,
8966 cx,
8967 )
8968 }
8969 })
8970 .on_click({
8971 let editor = editor.clone();
8972 move |_event, window, cx| {
8973 editor.update(cx, |editor, cx| {
8974 let snapshot = editor.snapshot(window, cx);
8975 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8976 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8977 });
8978 }
8979 }),
8980 )
8981 .into_any_element()
8982}