1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
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::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, RowExt,
23 RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap, StickyHeaderExcerpt,
24 ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus, DiffHunkStatusKind};
28use client::ParticipantIndex;
29use collections::{BTreeMap, HashMap, HashSet};
30use file_icons::FileIcons;
31use git::{blame::BlameEntry, Oid};
32use gpui::{
33 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
34 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
35 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
36 Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
37 Hsla, InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
38 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
39 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
40 Subscription, TextRun, TextStyleRefinement, 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,
54};
55use project::project_settings::{self, 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, BufferLineHeight, PlayerColor};
71use ui::{
72 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
73 POPOVER_Y_PADDING,
74};
75use unicode_segmentation::UnicodeSegmentation;
76use util::{debug_panic, RangeExt, ResultExt};
77use workspace::{item::Item, notifications::NotifyTaskExt};
78
79const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
80const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
81
82#[derive(Debug, Clone, PartialEq, Eq)]
83enum DisplayDiffHunk {
84 Folded {
85 display_row: DisplayRow,
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::move_to_start_of_excerpt);
294 register_action(editor, window, Editor::move_to_end_of_excerpt);
295 register_action(editor, window, Editor::select_up);
296 register_action(editor, window, Editor::select_down);
297 register_action(editor, window, Editor::select_left);
298 register_action(editor, window, Editor::select_right);
299 register_action(editor, window, Editor::select_to_previous_word_start);
300 register_action(editor, window, Editor::select_to_previous_subword_start);
301 register_action(editor, window, Editor::select_to_next_word_end);
302 register_action(editor, window, Editor::select_to_next_subword_end);
303 register_action(editor, window, Editor::select_to_beginning_of_line);
304 register_action(editor, window, Editor::select_to_end_of_line);
305 register_action(editor, window, Editor::select_to_start_of_paragraph);
306 register_action(editor, window, Editor::select_to_end_of_paragraph);
307 register_action(editor, window, Editor::select_to_start_of_excerpt);
308 register_action(editor, window, Editor::select_to_end_of_excerpt);
309 register_action(editor, window, Editor::select_to_beginning);
310 register_action(editor, window, Editor::select_to_end);
311 register_action(editor, window, Editor::select_all);
312 register_action(editor, window, |editor, action, window, cx| {
313 editor.select_all_matches(action, window, cx).log_err();
314 });
315 register_action(editor, window, Editor::select_line);
316 register_action(editor, window, Editor::split_selection_into_lines);
317 register_action(editor, window, Editor::add_selection_above);
318 register_action(editor, window, Editor::add_selection_below);
319 register_action(editor, window, |editor, action, window, cx| {
320 editor.select_next(action, window, cx).log_err();
321 });
322 register_action(editor, window, |editor, action, window, cx| {
323 editor.select_previous(action, window, cx).log_err();
324 });
325 register_action(editor, window, Editor::toggle_comments);
326 register_action(editor, window, Editor::select_larger_syntax_node);
327 register_action(editor, window, Editor::select_smaller_syntax_node);
328 register_action(editor, window, Editor::select_enclosing_symbol);
329 register_action(editor, window, Editor::move_to_enclosing_bracket);
330 register_action(editor, window, Editor::undo_selection);
331 register_action(editor, window, Editor::redo_selection);
332 if !editor.read(cx).is_singleton(cx) {
333 register_action(editor, window, Editor::expand_excerpts);
334 register_action(editor, window, Editor::expand_excerpts_up);
335 register_action(editor, window, Editor::expand_excerpts_down);
336 }
337 register_action(editor, window, Editor::go_to_diagnostic);
338 register_action(editor, window, Editor::go_to_prev_diagnostic);
339 register_action(editor, window, Editor::go_to_next_hunk);
340 register_action(editor, window, Editor::go_to_prev_hunk);
341 register_action(editor, window, |editor, action, window, cx| {
342 editor
343 .go_to_definition(action, window, cx)
344 .detach_and_log_err(cx);
345 });
346 register_action(editor, window, |editor, action, window, cx| {
347 editor
348 .go_to_definition_split(action, window, cx)
349 .detach_and_log_err(cx);
350 });
351 register_action(editor, window, |editor, action, window, cx| {
352 editor
353 .go_to_declaration(action, window, cx)
354 .detach_and_log_err(cx);
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor
358 .go_to_declaration_split(action, window, cx)
359 .detach_and_log_err(cx);
360 });
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_implementation(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_implementation_split(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_type_definition(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor
378 .go_to_type_definition_split(action, window, cx)
379 .detach_and_log_err(cx);
380 });
381 register_action(editor, window, Editor::open_url);
382 register_action(editor, window, Editor::open_selected_filename);
383 register_action(editor, window, Editor::fold);
384 register_action(editor, window, Editor::fold_at_level);
385 register_action(editor, window, Editor::fold_all);
386 register_action(editor, window, Editor::fold_function_bodies);
387 register_action(editor, window, Editor::fold_at);
388 register_action(editor, window, Editor::fold_recursive);
389 register_action(editor, window, Editor::toggle_fold);
390 register_action(editor, window, Editor::toggle_fold_recursive);
391 register_action(editor, window, Editor::unfold_lines);
392 register_action(editor, window, Editor::unfold_recursive);
393 register_action(editor, window, Editor::unfold_all);
394 register_action(editor, window, Editor::unfold_at);
395 register_action(editor, window, Editor::fold_selected_ranges);
396 register_action(editor, window, Editor::set_mark);
397 register_action(editor, window, Editor::swap_selection_ends);
398 register_action(editor, window, Editor::show_completions);
399 register_action(editor, window, Editor::toggle_code_actions);
400 register_action(editor, window, Editor::open_excerpts);
401 register_action(editor, window, Editor::open_excerpts_in_split);
402 register_action(editor, window, Editor::open_proposed_changes_editor);
403 register_action(editor, window, Editor::toggle_soft_wrap);
404 register_action(editor, window, Editor::toggle_tab_bar);
405 register_action(editor, window, Editor::toggle_line_numbers);
406 register_action(editor, window, Editor::toggle_relative_line_numbers);
407 register_action(editor, window, Editor::toggle_indent_guides);
408 register_action(editor, window, Editor::toggle_inlay_hints);
409 register_action(editor, window, Editor::toggle_edit_predictions);
410 register_action(editor, window, Editor::toggle_inline_diagnostics);
411 register_action(editor, window, hover_popover::hover);
412 register_action(editor, window, Editor::reveal_in_finder);
413 register_action(editor, window, Editor::copy_path);
414 register_action(editor, window, Editor::copy_relative_path);
415 register_action(editor, window, Editor::copy_file_name);
416 register_action(editor, window, Editor::copy_file_name_without_extension);
417 register_action(editor, window, Editor::copy_highlight_json);
418 register_action(editor, window, Editor::copy_permalink_to_line);
419 register_action(editor, window, Editor::open_permalink_to_line);
420 register_action(editor, window, Editor::copy_file_location);
421 register_action(editor, window, Editor::toggle_git_blame);
422 register_action(editor, window, Editor::toggle_git_blame_inline);
423 register_action(editor, window, Editor::toggle_selected_diff_hunks);
424 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
425 register_action(editor, window, Editor::stage_and_next);
426 register_action(editor, window, Editor::unstage_and_next);
427 register_action(editor, window, Editor::expand_all_diff_hunks);
428
429 register_action(editor, window, |editor, action, window, cx| {
430 if let Some(task) = editor.format(action, window, cx) {
431 task.detach_and_notify_err(window, cx);
432 } else {
433 cx.propagate();
434 }
435 });
436 register_action(editor, window, |editor, action, window, cx| {
437 if let Some(task) = editor.format_selections(action, window, cx) {
438 task.detach_and_notify_err(window, cx);
439 } else {
440 cx.propagate();
441 }
442 });
443 register_action(editor, window, Editor::restart_language_server);
444 register_action(editor, window, Editor::show_character_palette);
445 register_action(editor, window, |editor, action, window, cx| {
446 if let Some(task) = editor.confirm_completion(action, window, cx) {
447 task.detach_and_notify_err(window, cx);
448 } else {
449 cx.propagate();
450 }
451 });
452 register_action(editor, window, |editor, action, window, cx| {
453 if let Some(task) = editor.compose_completion(action, window, cx) {
454 task.detach_and_notify_err(window, cx);
455 } else {
456 cx.propagate();
457 }
458 });
459 register_action(editor, window, |editor, action, window, cx| {
460 if let Some(task) = editor.confirm_code_action(action, window, cx) {
461 task.detach_and_notify_err(window, cx);
462 } else {
463 cx.propagate();
464 }
465 });
466 register_action(editor, window, |editor, action, window, cx| {
467 if let Some(task) = editor.rename(action, window, cx) {
468 task.detach_and_notify_err(window, cx);
469 } else {
470 cx.propagate();
471 }
472 });
473 register_action(editor, window, |editor, action, window, cx| {
474 if let Some(task) = editor.confirm_rename(action, window, cx) {
475 task.detach_and_notify_err(window, cx);
476 } else {
477 cx.propagate();
478 }
479 });
480 register_action(editor, window, |editor, action, window, cx| {
481 if let Some(task) = editor.find_all_references(action, window, cx) {
482 task.detach_and_log_err(cx);
483 } else {
484 cx.propagate();
485 }
486 });
487 register_action(editor, window, Editor::show_signature_help);
488 register_action(editor, window, Editor::next_edit_prediction);
489 register_action(editor, window, Editor::previous_edit_prediction);
490 register_action(editor, window, Editor::show_inline_completion);
491 register_action(editor, window, Editor::context_menu_first);
492 register_action(editor, window, Editor::context_menu_prev);
493 register_action(editor, window, Editor::context_menu_next);
494 register_action(editor, window, Editor::context_menu_last);
495 register_action(editor, window, Editor::display_cursor_names);
496 register_action(editor, window, Editor::unique_lines_case_insensitive);
497 register_action(editor, window, Editor::unique_lines_case_sensitive);
498 register_action(editor, window, Editor::accept_partial_inline_completion);
499 register_action(editor, window, Editor::accept_edit_prediction);
500 register_action(editor, window, Editor::restore_file);
501 register_action(editor, window, Editor::git_restore);
502 register_action(editor, window, Editor::apply_all_diff_hunks);
503 register_action(editor, window, Editor::apply_selected_diff_hunks);
504 register_action(editor, window, Editor::open_active_item_in_terminal);
505 register_action(editor, window, Editor::reload_file);
506 register_action(editor, window, Editor::spawn_nearest_task);
507 register_action(editor, window, Editor::insert_uuid_v4);
508 register_action(editor, window, Editor::insert_uuid_v7);
509 register_action(editor, window, Editor::open_selections_in_multibuffer);
510 }
511
512 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
513 let position_map = layout.position_map.clone();
514 window.on_key_event({
515 let editor = self.editor.clone();
516 move |event: &ModifiersChangedEvent, phase, window, cx| {
517 if phase != DispatchPhase::Bubble {
518 return;
519 }
520 editor.update(cx, |editor, cx| {
521 if editor.hover_state.focused(window, cx) {
522 return;
523 }
524
525 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
526 })
527 }
528 });
529 }
530
531 fn mouse_left_down(
532 editor: &mut Editor,
533 event: &MouseDownEvent,
534 hovered_hunk: Option<Range<Anchor>>,
535 position_map: &PositionMap,
536 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
537 window: &mut Window,
538 cx: &mut Context<Editor>,
539 ) {
540 if window.default_prevented() {
541 return;
542 }
543
544 let text_hitbox = &position_map.text_hitbox;
545 let gutter_hitbox = &position_map.gutter_hitbox;
546 let mut click_count = event.click_count;
547 let mut modifiers = event.modifiers;
548
549 if let Some(hovered_hunk) = hovered_hunk {
550 editor.toggle_single_diff_hunk(hovered_hunk, cx);
551 cx.notify();
552 return;
553 } else if gutter_hitbox.is_hovered(window) {
554 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
555 } else if !text_hitbox.is_hovered(window) {
556 return;
557 }
558
559 let is_singleton = editor.buffer().read(cx).is_singleton();
560
561 if click_count == 2 && !is_singleton {
562 match EditorSettings::get_global(cx).double_click_in_multibuffer {
563 DoubleClickInMultibuffer::Select => {
564 // do nothing special on double click, all selection logic is below
565 }
566 DoubleClickInMultibuffer::Open => {
567 if modifiers.alt {
568 // if double click is made with alt, pretend it's a regular double click without opening and alt,
569 // and run the selection logic.
570 modifiers.alt = false;
571 } else {
572 let scroll_position_row =
573 position_map.scroll_pixel_position.y / position_map.line_height;
574 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
575 + position_map.scroll_pixel_position.y)
576 / position_map.line_height)
577 as u32;
578 let multi_buffer_row = position_map
579 .snapshot
580 .display_point_to_point(
581 DisplayPoint::new(DisplayRow(display_row), 0),
582 Bias::Right,
583 )
584 .row;
585 let line_offset_from_top = display_row - scroll_position_row as u32;
586 // if double click is made without alt, open the corresponding excerp
587 editor.open_excerpts_common(
588 Some(JumpData::MultiBufferRow {
589 row: MultiBufferRow(multi_buffer_row),
590 line_offset_from_top,
591 }),
592 false,
593 window,
594 cx,
595 );
596 return;
597 }
598 }
599 }
600 }
601
602 let point_for_position = position_map.point_for_position(event.position);
603 let position = point_for_position.previous_valid;
604 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
605 editor.select(
606 SelectPhase::BeginColumnar {
607 position,
608 reset: false,
609 goal_column: point_for_position.exact_unclipped.column(),
610 },
611 window,
612 cx,
613 );
614 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
615 {
616 editor.select(
617 SelectPhase::Extend {
618 position,
619 click_count,
620 },
621 window,
622 cx,
623 );
624 } else {
625 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
626 let multi_cursor_modifier = match multi_cursor_setting {
627 MultiCursorModifier::Alt => modifiers.alt,
628 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
629 };
630 editor.select(
631 SelectPhase::Begin {
632 position,
633 add: multi_cursor_modifier,
634 click_count,
635 },
636 window,
637 cx,
638 );
639 }
640 cx.stop_propagation();
641
642 if !is_singleton {
643 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
644 + position_map.scroll_pixel_position.y)
645 / position_map.line_height) as u32;
646 let multi_buffer_row = position_map
647 .snapshot
648 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
649 .row;
650 if line_numbers
651 .get(&MultiBufferRow(multi_buffer_row))
652 .and_then(|line_number| line_number.hitbox.as_ref())
653 .is_some_and(|hitbox| hitbox.contains(&event.position))
654 {
655 let scroll_position_row =
656 position_map.scroll_pixel_position.y / position_map.line_height;
657 let line_offset_from_top = display_row - scroll_position_row as u32;
658
659 editor.open_excerpts_common(
660 Some(JumpData::MultiBufferRow {
661 row: MultiBufferRow(multi_buffer_row),
662 line_offset_from_top,
663 }),
664 modifiers.alt,
665 window,
666 cx,
667 );
668 cx.stop_propagation();
669 }
670 }
671 }
672
673 fn mouse_right_down(
674 editor: &mut Editor,
675 event: &MouseDownEvent,
676 position_map: &PositionMap,
677 window: &mut Window,
678 cx: &mut Context<Editor>,
679 ) {
680 if !position_map.text_hitbox.is_hovered(window) {
681 return;
682 }
683 let point_for_position = position_map.point_for_position(event.position);
684 mouse_context_menu::deploy_context_menu(
685 editor,
686 Some(event.position),
687 point_for_position.previous_valid,
688 window,
689 cx,
690 );
691 cx.stop_propagation();
692 }
693
694 fn mouse_middle_down(
695 editor: &mut Editor,
696 event: &MouseDownEvent,
697 position_map: &PositionMap,
698 window: &mut Window,
699 cx: &mut Context<Editor>,
700 ) {
701 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
702 return;
703 }
704
705 let point_for_position = position_map.point_for_position(event.position);
706 let position = point_for_position.previous_valid;
707
708 editor.select(
709 SelectPhase::BeginColumnar {
710 position,
711 reset: true,
712 goal_column: point_for_position.exact_unclipped.column(),
713 },
714 window,
715 cx,
716 );
717 }
718
719 fn mouse_up(
720 editor: &mut Editor,
721 event: &MouseUpEvent,
722 position_map: &PositionMap,
723 window: &mut Window,
724 cx: &mut Context<Editor>,
725 ) {
726 let text_hitbox = &position_map.text_hitbox;
727 let end_selection = editor.has_pending_selection();
728 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
729
730 if end_selection {
731 editor.select(SelectPhase::End, window, cx);
732 }
733
734 if end_selection && pending_nonempty_selections {
735 cx.stop_propagation();
736 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
737 && event.button == MouseButton::Middle
738 {
739 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
740 return;
741 }
742
743 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
744 if EditorSettings::get_global(cx).middle_click_paste {
745 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
746 let point_for_position = position_map.point_for_position(event.position);
747 let position = point_for_position.previous_valid;
748
749 editor.select(
750 SelectPhase::Begin {
751 position,
752 add: false,
753 click_count: 1,
754 },
755 window,
756 cx,
757 );
758 editor.insert(&text, window, cx);
759 }
760 cx.stop_propagation()
761 }
762 }
763 }
764
765 fn click(
766 editor: &mut Editor,
767 event: &ClickEvent,
768 position_map: &PositionMap,
769 window: &mut Window,
770 cx: &mut Context<Editor>,
771 ) {
772 let text_hitbox = &position_map.text_hitbox;
773 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
774
775 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
776 let multi_cursor_modifier = match multi_cursor_setting {
777 MultiCursorModifier::Alt => event.modifiers().secondary(),
778 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
779 };
780
781 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
782 let point = position_map.point_for_position(event.up.position);
783 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
784
785 cx.stop_propagation();
786 }
787 }
788
789 fn mouse_dragged(
790 editor: &mut Editor,
791 event: &MouseMoveEvent,
792 position_map: &PositionMap,
793 window: &mut Window,
794 cx: &mut Context<Editor>,
795 ) {
796 if !editor.has_pending_selection() {
797 return;
798 }
799
800 let text_bounds = position_map.text_hitbox.bounds;
801 let point_for_position = position_map.point_for_position(event.position);
802 let mut scroll_delta = gpui::Point::<f32>::default();
803 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
804 let top = text_bounds.origin.y + vertical_margin;
805 let bottom = text_bounds.bottom_left().y - vertical_margin;
806 if event.position.y < top {
807 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
808 }
809 if event.position.y > bottom {
810 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
811 }
812
813 // We need horizontal width of text
814 let style = editor.style.clone().unwrap_or_default();
815 let font_id = window.text_system().resolve_font(&style.text.font());
816 let font_size = style.text.font_size.to_pixels(window.rem_size());
817 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
818
819 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
820
821 let scroll_space: Pixels = scroll_margin_x * em_width;
822
823 let left = text_bounds.origin.x + scroll_space;
824 let right = text_bounds.top_right().x - scroll_space;
825
826 if event.position.x < left {
827 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
828 }
829 if event.position.x > right {
830 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
831 }
832
833 editor.select(
834 SelectPhase::Update {
835 position: point_for_position.previous_valid,
836 goal_column: point_for_position.exact_unclipped.column(),
837 scroll_delta,
838 },
839 window,
840 cx,
841 );
842 }
843
844 fn mouse_moved(
845 editor: &mut Editor,
846 event: &MouseMoveEvent,
847 position_map: &PositionMap,
848 window: &mut Window,
849 cx: &mut Context<Editor>,
850 ) {
851 let text_hitbox = &position_map.text_hitbox;
852 let gutter_hitbox = &position_map.gutter_hitbox;
853 let modifiers = event.modifiers;
854 let gutter_hovered = gutter_hitbox.is_hovered(window);
855 editor.set_gutter_hovered(gutter_hovered, cx);
856
857 // Don't trigger hover popover if mouse is hovering over context menu
858 if text_hitbox.is_hovered(window) {
859 let point_for_position = position_map.point_for_position(event.position);
860
861 editor.update_hovered_link(
862 point_for_position,
863 &position_map.snapshot,
864 modifiers,
865 window,
866 cx,
867 );
868
869 if let Some(point) = point_for_position.as_valid() {
870 let anchor = position_map
871 .snapshot
872 .buffer_snapshot
873 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
874 hover_at(editor, Some(anchor), window, cx);
875 Self::update_visible_cursor(editor, point, position_map, window, cx);
876 } else {
877 hover_at(editor, None, window, cx);
878 }
879 } else {
880 editor.hide_hovered_link(cx);
881 hover_at(editor, None, window, cx);
882 if gutter_hovered {
883 cx.stop_propagation();
884 }
885 }
886 }
887
888 fn update_visible_cursor(
889 editor: &mut Editor,
890 point: DisplayPoint,
891 position_map: &PositionMap,
892 window: &mut Window,
893 cx: &mut Context<Editor>,
894 ) {
895 let snapshot = &position_map.snapshot;
896 let Some(hub) = editor.collaboration_hub() else {
897 return;
898 };
899 let start = snapshot.display_snapshot.clip_point(
900 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
901 Bias::Left,
902 );
903 let end = snapshot.display_snapshot.clip_point(
904 DisplayPoint::new(
905 point.row(),
906 (point.column() + 1).min(snapshot.line_len(point.row())),
907 ),
908 Bias::Right,
909 );
910
911 let range = snapshot
912 .buffer_snapshot
913 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
914 ..snapshot
915 .buffer_snapshot
916 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
917
918 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
919 return;
920 };
921 let key = crate::HoveredCursor {
922 replica_id: selection.replica_id,
923 selection_id: selection.selection.id,
924 };
925 editor.hovered_cursors.insert(
926 key.clone(),
927 cx.spawn_in(window, |editor, mut cx| async move {
928 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
929 editor
930 .update(&mut cx, |editor, cx| {
931 editor.hovered_cursors.remove(&key);
932 cx.notify();
933 })
934 .ok();
935 }),
936 );
937 cx.notify()
938 }
939
940 #[allow(clippy::too_many_arguments)]
941 fn layout_selections(
942 &self,
943 start_anchor: Anchor,
944 end_anchor: Anchor,
945 local_selections: &[Selection<Point>],
946 snapshot: &EditorSnapshot,
947 start_row: DisplayRow,
948 end_row: DisplayRow,
949 window: &mut Window,
950 cx: &mut App,
951 ) -> (
952 Vec<(PlayerColor, Vec<SelectionLayout>)>,
953 BTreeMap<DisplayRow, bool>,
954 Option<DisplayPoint>,
955 ) {
956 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
957 let mut active_rows = BTreeMap::new();
958 let mut newest_selection_head = None;
959 self.editor.update(cx, |editor, cx| {
960 if editor.show_local_selections {
961 let mut layouts = Vec::new();
962 let newest = editor.selections.newest(cx);
963 for selection in local_selections.iter().cloned() {
964 let is_empty = selection.start == selection.end;
965 let is_newest = selection == newest;
966
967 let layout = SelectionLayout::new(
968 selection,
969 editor.selections.line_mode,
970 editor.cursor_shape,
971 &snapshot.display_snapshot,
972 is_newest,
973 editor.leader_peer_id.is_none(),
974 None,
975 );
976 if is_newest {
977 newest_selection_head = Some(layout.head);
978 }
979
980 for row in cmp::max(layout.active_rows.start.0, start_row.0)
981 ..=cmp::min(layout.active_rows.end.0, end_row.0)
982 {
983 let contains_non_empty_selection =
984 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
985 *contains_non_empty_selection |= !is_empty;
986 }
987 layouts.push(layout);
988 }
989
990 let player = editor.current_user_player_color(cx);
991 selections.push((player, layouts));
992 }
993
994 if let Some(collaboration_hub) = &editor.collaboration_hub {
995 // When following someone, render the local selections in their color.
996 if let Some(leader_id) = editor.leader_peer_id {
997 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
998 {
999 if let Some(participant_index) = collaboration_hub
1000 .user_participant_indices(cx)
1001 .get(&collaborator.user_id)
1002 {
1003 if let Some((local_selection_style, _)) = selections.first_mut() {
1004 *local_selection_style = cx
1005 .theme()
1006 .players()
1007 .color_for_participant(participant_index.0);
1008 }
1009 }
1010 }
1011 }
1012
1013 let mut remote_selections = HashMap::default();
1014 for selection in snapshot.remote_selections_in_range(
1015 &(start_anchor..end_anchor),
1016 collaboration_hub.as_ref(),
1017 cx,
1018 ) {
1019 let selection_style =
1020 Self::get_participant_color(selection.participant_index, cx);
1021
1022 // Don't re-render the leader's selections, since the local selections
1023 // match theirs.
1024 if Some(selection.peer_id) == editor.leader_peer_id {
1025 continue;
1026 }
1027 let key = HoveredCursor {
1028 replica_id: selection.replica_id,
1029 selection_id: selection.selection.id,
1030 };
1031
1032 let is_shown =
1033 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1034
1035 remote_selections
1036 .entry(selection.replica_id)
1037 .or_insert((selection_style, Vec::new()))
1038 .1
1039 .push(SelectionLayout::new(
1040 selection.selection,
1041 selection.line_mode,
1042 selection.cursor_shape,
1043 &snapshot.display_snapshot,
1044 false,
1045 false,
1046 if is_shown { selection.user_name } else { None },
1047 ));
1048 }
1049
1050 selections.extend(remote_selections.into_values());
1051 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1052 let layouts = snapshot
1053 .buffer_snapshot
1054 .selections_in_range(&(start_anchor..end_anchor), true)
1055 .map(move |(_, line_mode, cursor_shape, selection)| {
1056 SelectionLayout::new(
1057 selection,
1058 line_mode,
1059 cursor_shape,
1060 &snapshot.display_snapshot,
1061 false,
1062 false,
1063 None,
1064 )
1065 })
1066 .collect::<Vec<_>>();
1067 let player = editor.current_user_player_color(cx);
1068 selections.push((player, layouts));
1069 }
1070 });
1071 (selections, active_rows, newest_selection_head)
1072 }
1073
1074 fn collect_cursors(
1075 &self,
1076 snapshot: &EditorSnapshot,
1077 cx: &mut App,
1078 ) -> Vec<(DisplayPoint, Hsla)> {
1079 let editor = self.editor.read(cx);
1080 let mut cursors = Vec::new();
1081 let mut skip_local = false;
1082 let mut add_cursor = |anchor: Anchor, color| {
1083 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1084 };
1085 // Remote cursors
1086 if let Some(collaboration_hub) = &editor.collaboration_hub {
1087 for remote_selection in snapshot.remote_selections_in_range(
1088 &(Anchor::min()..Anchor::max()),
1089 collaboration_hub.deref(),
1090 cx,
1091 ) {
1092 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1093 add_cursor(remote_selection.selection.head(), color.cursor);
1094 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1095 skip_local = true;
1096 }
1097 }
1098 }
1099 // Local cursors
1100 if !skip_local {
1101 let color = cx.theme().players().local().cursor;
1102 editor.selections.disjoint.iter().for_each(|selection| {
1103 add_cursor(selection.head(), color);
1104 });
1105 if let Some(ref selection) = editor.selections.pending_anchor() {
1106 add_cursor(selection.head(), color);
1107 }
1108 }
1109 cursors
1110 }
1111
1112 #[allow(clippy::too_many_arguments)]
1113 fn layout_visible_cursors(
1114 &self,
1115 snapshot: &EditorSnapshot,
1116 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1117 block_start_rows: &HashSet<DisplayRow>,
1118 visible_display_row_range: Range<DisplayRow>,
1119 line_layouts: &[LineWithInvisibles],
1120 text_hitbox: &Hitbox,
1121 content_origin: gpui::Point<Pixels>,
1122 scroll_position: gpui::Point<f32>,
1123 scroll_pixel_position: gpui::Point<Pixels>,
1124 line_height: Pixels,
1125 em_width: Pixels,
1126 em_advance: Pixels,
1127 autoscroll_containing_element: bool,
1128 window: &mut Window,
1129 cx: &mut App,
1130 ) -> Vec<CursorLayout> {
1131 let mut autoscroll_bounds = None;
1132 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1133 let mut cursors = Vec::new();
1134
1135 let show_local_cursors = editor.show_local_cursors(window, cx);
1136
1137 for (player_color, selections) in selections {
1138 for selection in selections {
1139 let cursor_position = selection.head;
1140
1141 let in_range = visible_display_row_range.contains(&cursor_position.row());
1142 if (selection.is_local && !show_local_cursors)
1143 || !in_range
1144 || block_start_rows.contains(&cursor_position.row())
1145 {
1146 continue;
1147 }
1148
1149 let cursor_row_layout = &line_layouts
1150 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1151 let cursor_column = cursor_position.column() as usize;
1152
1153 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1154 let mut block_width =
1155 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1156 if block_width == Pixels::ZERO {
1157 block_width = em_advance;
1158 }
1159 let block_text = if let CursorShape::Block = selection.cursor_shape {
1160 snapshot
1161 .grapheme_at(cursor_position)
1162 .or_else(|| {
1163 if cursor_column == 0 {
1164 snapshot.placeholder_text().and_then(|s| {
1165 s.graphemes(true).next().map(|s| s.to_string().into())
1166 })
1167 } else {
1168 None
1169 }
1170 })
1171 .and_then(|text| {
1172 let len = text.len();
1173
1174 let font = cursor_row_layout
1175 .font_id_for_index(cursor_column)
1176 .and_then(|cursor_font_id| {
1177 window.text_system().get_font_for_id(cursor_font_id)
1178 })
1179 .unwrap_or(self.style.text.font());
1180
1181 // Invert the text color for the block cursor. Ensure that the text
1182 // color is opaque enough to be visible against the background color.
1183 //
1184 // 0.75 is an arbitrary threshold to determine if the background color is
1185 // opaque enough to use as a text color.
1186 //
1187 // TODO: In the future we should ensure themes have a `text_inverse` color.
1188 let color = if cx.theme().colors().editor_background.a < 0.75 {
1189 match cx.theme().appearance {
1190 Appearance::Dark => Hsla::black(),
1191 Appearance::Light => Hsla::white(),
1192 }
1193 } else {
1194 cx.theme().colors().editor_background
1195 };
1196
1197 window
1198 .text_system()
1199 .shape_line(
1200 text,
1201 cursor_row_layout.font_size,
1202 &[TextRun {
1203 len,
1204 font,
1205 color,
1206 background_color: None,
1207 strikethrough: None,
1208 underline: None,
1209 }],
1210 )
1211 .log_err()
1212 })
1213 } else {
1214 None
1215 };
1216
1217 let x = cursor_character_x - scroll_pixel_position.x;
1218 let y = (cursor_position.row().as_f32()
1219 - scroll_pixel_position.y / line_height)
1220 * line_height;
1221 if selection.is_newest {
1222 editor.pixel_position_of_newest_cursor = Some(point(
1223 text_hitbox.origin.x + x + block_width / 2.,
1224 text_hitbox.origin.y + y + line_height / 2.,
1225 ));
1226
1227 if autoscroll_containing_element {
1228 let top = text_hitbox.origin.y
1229 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1230 * line_height;
1231 let left = text_hitbox.origin.x
1232 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1233 .max(0.)
1234 * em_width;
1235
1236 let bottom = text_hitbox.origin.y
1237 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1238 * line_height;
1239 let right = text_hitbox.origin.x
1240 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1241 * em_width;
1242
1243 autoscroll_bounds =
1244 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1245 }
1246 }
1247
1248 let mut cursor = CursorLayout {
1249 color: player_color.cursor,
1250 block_width,
1251 origin: point(x, y),
1252 line_height,
1253 shape: selection.cursor_shape,
1254 block_text,
1255 cursor_name: None,
1256 };
1257 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1258 string: name,
1259 color: self.style.background,
1260 is_top_row: cursor_position.row().0 == 0,
1261 });
1262 cursor.layout(content_origin, cursor_name, window, cx);
1263 cursors.push(cursor);
1264 }
1265 }
1266
1267 cursors
1268 });
1269
1270 if let Some(bounds) = autoscroll_bounds {
1271 window.request_autoscroll(bounds);
1272 }
1273
1274 cursor_layouts
1275 }
1276
1277 fn layout_scrollbars(
1278 &self,
1279 snapshot: &EditorSnapshot,
1280 scrollbar_range_data: ScrollbarRangeData,
1281 scroll_position: gpui::Point<f32>,
1282 non_visible_cursors: bool,
1283 window: &mut Window,
1284 cx: &mut App,
1285 ) -> AxisPair<Option<ScrollbarLayout>> {
1286 let letter_size = scrollbar_range_data.letter_size;
1287 let text_units_per_page = axis_pair(
1288 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1289 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1290 );
1291
1292 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1293 let show_scrollbars = self.editor.read(cx).show_scrollbars
1294 && match scrollbar_settings.show {
1295 ShowScrollbar::Auto => {
1296 let editor = self.editor.read(cx);
1297 let is_singleton = editor.is_singleton(cx);
1298 // Git
1299 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1300 ||
1301 // Buffer Search Results
1302 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1303 ||
1304 // Selected Text Occurrences
1305 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1306 ||
1307 // Selected Symbol Occurrences
1308 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1309 ||
1310 // Diagnostics
1311 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1312 ||
1313 // Cursors out of sight
1314 non_visible_cursors
1315 ||
1316 // Scrollmanager
1317 editor.scroll_manager.scrollbars_visible()
1318 }
1319 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1320 ShowScrollbar::Always => true,
1321 ShowScrollbar::Never => false,
1322 };
1323
1324 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1325
1326 if snapshot.mode != EditorMode::Full {
1327 return axis_pair(None, None);
1328 }
1329
1330 let visible_range = axis_pair(
1331 axes.horizontal
1332 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1333 axes.vertical
1334 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1335 );
1336
1337 // If a drag took place after we started dragging the scrollbar,
1338 // cancel the scrollbar drag.
1339 if cx.has_active_drag() {
1340 self.editor.update(cx, |editor, cx| {
1341 editor
1342 .scroll_manager
1343 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1344 editor
1345 .scroll_manager
1346 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1347 });
1348 }
1349
1350 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1351
1352 let track_bounds = axis_pair(
1353 axes.horizontal.then(|| {
1354 Bounds::from_corners(
1355 point(
1356 text_bounds.bottom_left().x,
1357 text_bounds.bottom_left().y - self.style.scrollbar_width,
1358 ),
1359 point(
1360 text_bounds.bottom_right().x
1361 - if axes.vertical {
1362 self.style.scrollbar_width
1363 } else {
1364 px(0.)
1365 },
1366 text_bounds.bottom_right().y,
1367 ),
1368 )
1369 }),
1370 axes.vertical.then(|| {
1371 Bounds::from_corners(
1372 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1373 text_bounds.bottom_right(),
1374 )
1375 }),
1376 );
1377
1378 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1379 let total_text_units = axis_pair(
1380 Some(scroll_range_size.width / letter_size.width),
1381 Some(scroll_range_size.height / letter_size.height),
1382 );
1383
1384 let thumb_size = axis_pair(
1385 total_text_units
1386 .horizontal
1387 .zip(track_bounds.horizontal)
1388 .and_then(|(total_text_units_x, track_bounds_x)| {
1389 if text_units_per_page.horizontal >= total_text_units_x {
1390 return None;
1391 }
1392 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1393 return Some(track_bounds_x.size.width);
1394 }
1395 let thumb_size = track_bounds_x.size.width
1396 * (text_units_per_page.horizontal / total_text_units_x);
1397 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1398 }),
1399 total_text_units.vertical.zip(track_bounds.vertical).map(
1400 |(total_text_units_y, track_bounds_y)| {
1401 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1402 return track_bounds_y.size.height;
1403 }
1404 let thumb_size = track_bounds_y.size.height
1405 * (text_units_per_page.vertical / total_text_units_y);
1406 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1407 },
1408 ),
1409 );
1410
1411 // NOTE: Space not taken by track bounds divided by text units not on screen
1412 let text_unit_size = axis_pair(
1413 thumb_size
1414 .horizontal
1415 .zip(track_bounds.horizontal)
1416 .zip(total_text_units.horizontal)
1417 .map(|((thumb_size, track_bounds), total_text_units)| {
1418 (track_bounds.size.width - thumb_size)
1419 / (total_text_units - text_units_per_page.horizontal).max(0.)
1420 }),
1421 thumb_size
1422 .vertical
1423 .zip(track_bounds.vertical)
1424 .zip(total_text_units.vertical)
1425 .map(|((thumb_size, track_bounds), total_text_units)| {
1426 (track_bounds.size.height - thumb_size)
1427 / (total_text_units - text_units_per_page.vertical).max(0.)
1428 }),
1429 );
1430
1431 let horizontal_scrollbar = track_bounds
1432 .horizontal
1433 .zip(visible_range.horizontal)
1434 .zip(text_unit_size.horizontal)
1435 .zip(thumb_size.horizontal)
1436 .map(
1437 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1438 hitbox: window.insert_hitbox(track_bounds, false),
1439 visible_range,
1440 text_unit_size,
1441 visible: show_scrollbars,
1442 thumb_size,
1443 axis: Axis::Horizontal,
1444 },
1445 );
1446
1447 let vertical_scrollbar = track_bounds
1448 .vertical
1449 .zip(visible_range.vertical)
1450 .zip(text_unit_size.vertical)
1451 .zip(thumb_size.vertical)
1452 .map(
1453 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1454 hitbox: window.insert_hitbox(track_bounds, false),
1455 visible_range,
1456 text_unit_size,
1457 visible: show_scrollbars,
1458 thumb_size,
1459 axis: Axis::Vertical,
1460 },
1461 );
1462
1463 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1464 }
1465
1466 #[allow(clippy::too_many_arguments)]
1467 fn prepaint_crease_toggles(
1468 &self,
1469 crease_toggles: &mut [Option<AnyElement>],
1470 line_height: Pixels,
1471 gutter_dimensions: &GutterDimensions,
1472 gutter_settings: crate::editor_settings::Gutter,
1473 scroll_pixel_position: gpui::Point<Pixels>,
1474 gutter_hitbox: &Hitbox,
1475 window: &mut Window,
1476 cx: &mut App,
1477 ) {
1478 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1479 if let Some(crease_toggle) = crease_toggle {
1480 debug_assert!(gutter_settings.folds);
1481 let available_space = size(
1482 AvailableSpace::MinContent,
1483 AvailableSpace::Definite(line_height * 0.55),
1484 );
1485 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1486
1487 let position = point(
1488 gutter_dimensions.width - gutter_dimensions.right_padding,
1489 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1490 );
1491 let centering_offset = point(
1492 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1493 (line_height - crease_toggle_size.height) / 2.,
1494 );
1495 let origin = gutter_hitbox.origin + position + centering_offset;
1496 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1497 }
1498 }
1499 }
1500
1501 #[allow(clippy::too_many_arguments)]
1502 fn prepaint_crease_trailers(
1503 &self,
1504 trailers: Vec<Option<AnyElement>>,
1505 lines: &[LineWithInvisibles],
1506 line_height: Pixels,
1507 content_origin: gpui::Point<Pixels>,
1508 scroll_pixel_position: gpui::Point<Pixels>,
1509 em_width: Pixels,
1510 window: &mut Window,
1511 cx: &mut App,
1512 ) -> Vec<Option<CreaseTrailerLayout>> {
1513 trailers
1514 .into_iter()
1515 .enumerate()
1516 .map(|(ix, element)| {
1517 let mut element = element?;
1518 let available_space = size(
1519 AvailableSpace::MinContent,
1520 AvailableSpace::Definite(line_height),
1521 );
1522 let size = element.layout_as_root(available_space, window, cx);
1523
1524 let line = &lines[ix];
1525 let padding = if line.width == Pixels::ZERO {
1526 Pixels::ZERO
1527 } else {
1528 4. * em_width
1529 };
1530 let position = point(
1531 scroll_pixel_position.x + line.width + padding,
1532 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1533 );
1534 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1535 let origin = content_origin + position + centering_offset;
1536 element.prepaint_as_root(origin, available_space, window, cx);
1537 Some(CreaseTrailerLayout {
1538 element,
1539 bounds: Bounds::new(origin, size),
1540 })
1541 })
1542 .collect()
1543 }
1544
1545 // Folds contained in a hunk are ignored apart from shrinking visual size
1546 // If a fold contains any hunks then that fold line is marked as modified
1547 fn layout_gutter_diff_hunks(
1548 &self,
1549 line_height: Pixels,
1550 gutter_hitbox: &Hitbox,
1551 display_rows: Range<DisplayRow>,
1552 snapshot: &EditorSnapshot,
1553 window: &mut Window,
1554 cx: &mut App,
1555 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1556 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1557 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1558
1559 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1560 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1561
1562 for hunk in snapshot
1563 .buffer_snapshot
1564 .diff_hunks_in_range(buffer_start..buffer_end)
1565 {
1566 if folded_buffers.contains(&hunk.buffer_id) {
1567 continue;
1568 }
1569
1570 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1571 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1572
1573 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1574 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1575
1576 let display_hunk = if hunk_display_start.column() != 0 {
1577 DisplayDiffHunk::Folded {
1578 display_row: hunk_display_start.row(),
1579 }
1580 } else {
1581 let mut end_row = hunk_display_end.row();
1582 if hunk_display_end.column() > 0 {
1583 end_row.0 += 1;
1584 }
1585 DisplayDiffHunk::Unfolded {
1586 status: hunk.status(),
1587 diff_base_byte_range: hunk.diff_base_byte_range,
1588 display_row_range: hunk_display_start.row()..end_row,
1589 multi_buffer_range: Anchor::range_in_buffer(
1590 hunk.excerpt_id,
1591 hunk.buffer_id,
1592 hunk.buffer_range,
1593 ),
1594 }
1595 };
1596
1597 display_hunks.push((display_hunk, None));
1598 }
1599
1600 let git_gutter_setting = ProjectSettings::get_global(cx)
1601 .git
1602 .git_gutter
1603 .unwrap_or_default();
1604 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1605 for (hunk, hitbox) in &mut display_hunks {
1606 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1607 let hunk_bounds =
1608 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1609 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1610 }
1611 }
1612 }
1613
1614 display_hunks
1615 }
1616
1617 #[allow(clippy::too_many_arguments)]
1618 fn layout_inline_diagnostics(
1619 &self,
1620 line_layouts: &[LineWithInvisibles],
1621 crease_trailers: &[Option<CreaseTrailerLayout>],
1622 content_origin: gpui::Point<Pixels>,
1623 scroll_pixel_position: gpui::Point<Pixels>,
1624 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1625 start_row: DisplayRow,
1626 end_row: DisplayRow,
1627 line_height: Pixels,
1628 em_width: Pixels,
1629 style: &EditorStyle,
1630 window: &mut Window,
1631 cx: &mut App,
1632 ) -> HashMap<DisplayRow, AnyElement> {
1633 let max_severity = ProjectSettings::get_global(cx)
1634 .diagnostics
1635 .inline
1636 .max_severity
1637 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1638 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1639 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1640 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1641 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1642 });
1643
1644 let active_diagnostics_group = self
1645 .editor
1646 .read(cx)
1647 .active_diagnostics
1648 .as_ref()
1649 .map(|active_diagnostics| active_diagnostics.group_id);
1650
1651 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1652 let snapshot = editor.snapshot(window, cx);
1653 editor
1654 .inline_diagnostics
1655 .iter()
1656 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1657 .filter(|(_, diagnostic)| match active_diagnostics_group {
1658 Some(active_diagnostics_group) => {
1659 // Active diagnostics are all shown in the editor already, no need to display them inline
1660 diagnostic.group_id != active_diagnostics_group
1661 }
1662 None => true,
1663 })
1664 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1665 .skip_while(|(point, _)| point.row() < start_row)
1666 .take_while(|(point, _)| point.row() < end_row)
1667 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1668 acc.entry(point.row())
1669 .or_insert_with(Vec::new)
1670 .push(diagnostic);
1671 acc
1672 })
1673 });
1674
1675 if diagnostics_by_rows.is_empty() {
1676 return HashMap::default();
1677 }
1678
1679 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1680 &DiagnosticSeverity::ERROR => Color::Error,
1681 &DiagnosticSeverity::WARNING => Color::Warning,
1682 &DiagnosticSeverity::INFORMATION => Color::Info,
1683 &DiagnosticSeverity::HINT => Color::Hint,
1684 _ => Color::Error,
1685 };
1686
1687 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1688 let min_x = ProjectSettings::get_global(cx)
1689 .diagnostics
1690 .inline
1691 .min_column as f32
1692 * em_width;
1693
1694 let mut elements = HashMap::default();
1695 for (row, mut diagnostics) in diagnostics_by_rows {
1696 diagnostics.sort_by_key(|diagnostic| {
1697 (
1698 diagnostic.severity,
1699 std::cmp::Reverse(diagnostic.is_primary),
1700 diagnostic.start.row,
1701 diagnostic.start.column,
1702 )
1703 });
1704
1705 let Some(diagnostic_to_render) = diagnostics
1706 .iter()
1707 .find(|diagnostic| diagnostic.is_primary)
1708 .or_else(|| diagnostics.first())
1709 else {
1710 continue;
1711 };
1712
1713 let pos_y = content_origin.y
1714 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1715
1716 let window_ix = row.minus(start_row) as usize;
1717 let pos_x = {
1718 let crease_trailer_layout = &crease_trailers[window_ix];
1719 let line_layout = &line_layouts[window_ix];
1720
1721 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1722 crease_trailer.bounds.right()
1723 } else {
1724 content_origin.x - scroll_pixel_position.x + line_layout.width
1725 };
1726
1727 let padded_line = line_end + padding;
1728 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1729
1730 cmp::max(padded_line, min_start)
1731 };
1732
1733 let behind_inline_completion_popover = inline_completion_popover_origin
1734 .as_ref()
1735 .map_or(false, |inline_completion_popover_origin| {
1736 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1737 });
1738 let opacity = if behind_inline_completion_popover {
1739 0.5
1740 } else {
1741 1.0
1742 };
1743
1744 let mut element = h_flex()
1745 .id(("diagnostic", row.0))
1746 .h(line_height)
1747 .w_full()
1748 .px_1()
1749 .rounded_sm()
1750 .opacity(opacity)
1751 .bg(severity_to_color(&diagnostic_to_render.severity)
1752 .color(cx)
1753 .opacity(0.05))
1754 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1755 .text_sm()
1756 .font_family(style.text.font().family)
1757 .child(diagnostic_to_render.message.clone())
1758 .into_any();
1759
1760 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1761
1762 elements.insert(row, element);
1763 }
1764
1765 elements
1766 }
1767
1768 #[allow(clippy::too_many_arguments)]
1769 fn layout_inline_blame(
1770 &self,
1771 display_row: DisplayRow,
1772 row_info: &RowInfo,
1773 line_layout: &LineWithInvisibles,
1774 crease_trailer: Option<&CreaseTrailerLayout>,
1775 em_width: Pixels,
1776 content_origin: gpui::Point<Pixels>,
1777 scroll_pixel_position: gpui::Point<Pixels>,
1778 line_height: Pixels,
1779 window: &mut Window,
1780 cx: &mut App,
1781 ) -> Option<AnyElement> {
1782 if !self
1783 .editor
1784 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1785 {
1786 return None;
1787 }
1788
1789 let editor = self.editor.read(cx);
1790 let blame = editor.blame.clone()?;
1791 let padding = {
1792 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1793 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1794
1795 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1796
1797 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1798 match &inline_completion.completion {
1799 InlineCompletion::Edit {
1800 display_mode: EditDisplayMode::TabAccept,
1801 ..
1802 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1803 _ => {}
1804 }
1805 }
1806
1807 padding * em_width
1808 };
1809
1810 let blame_entry = blame
1811 .update(cx, |blame, cx| {
1812 blame.blame_for_rows(&[*row_info], cx).next()
1813 })
1814 .flatten()?;
1815
1816 let mut element =
1817 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1818
1819 let start_y = content_origin.y
1820 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1821
1822 let start_x = {
1823 let line_end = if let Some(crease_trailer) = crease_trailer {
1824 crease_trailer.bounds.right()
1825 } else {
1826 content_origin.x - scroll_pixel_position.x + line_layout.width
1827 };
1828
1829 let padded_line_end = line_end + padding;
1830
1831 let min_column_in_pixels = ProjectSettings::get_global(cx)
1832 .git
1833 .inline_blame
1834 .and_then(|settings| settings.min_column)
1835 .map(|col| self.column_pixels(col as usize, window, cx))
1836 .unwrap_or(px(0.));
1837 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1838
1839 cmp::max(padded_line_end, min_start)
1840 };
1841
1842 let absolute_offset = point(start_x, start_y);
1843 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1844
1845 Some(element)
1846 }
1847
1848 #[allow(clippy::too_many_arguments)]
1849 fn layout_blame_entries(
1850 &self,
1851 buffer_rows: &[RowInfo],
1852 em_width: Pixels,
1853 scroll_position: gpui::Point<f32>,
1854 line_height: Pixels,
1855 gutter_hitbox: &Hitbox,
1856 max_width: Option<Pixels>,
1857 window: &mut Window,
1858 cx: &mut App,
1859 ) -> Option<Vec<AnyElement>> {
1860 if !self
1861 .editor
1862 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1863 {
1864 return None;
1865 }
1866
1867 let blame = self.editor.read(cx).blame.clone()?;
1868 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1869 blame.blame_for_rows(buffer_rows, cx).collect()
1870 });
1871
1872 let width = if let Some(max_width) = max_width {
1873 AvailableSpace::Definite(max_width)
1874 } else {
1875 AvailableSpace::MaxContent
1876 };
1877 let scroll_top = scroll_position.y * line_height;
1878 let start_x = em_width;
1879
1880 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1881
1882 let shaped_lines = blamed_rows
1883 .into_iter()
1884 .enumerate()
1885 .flat_map(|(ix, blame_entry)| {
1886 if let Some(blame_entry) = blame_entry {
1887 let mut element = render_blame_entry(
1888 ix,
1889 &blame,
1890 blame_entry,
1891 &self.style,
1892 &mut last_used_color,
1893 self.editor.clone(),
1894 cx,
1895 );
1896
1897 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1898 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1899
1900 element.prepaint_as_root(
1901 absolute_offset,
1902 size(width, AvailableSpace::MinContent),
1903 window,
1904 cx,
1905 );
1906
1907 Some(element)
1908 } else {
1909 None
1910 }
1911 })
1912 .collect();
1913
1914 Some(shaped_lines)
1915 }
1916
1917 #[allow(clippy::too_many_arguments)]
1918 fn layout_indent_guides(
1919 &self,
1920 content_origin: gpui::Point<Pixels>,
1921 text_origin: gpui::Point<Pixels>,
1922 visible_buffer_range: Range<MultiBufferRow>,
1923 scroll_pixel_position: gpui::Point<Pixels>,
1924 line_height: Pixels,
1925 snapshot: &DisplaySnapshot,
1926 window: &mut Window,
1927 cx: &mut App,
1928 ) -> Option<Vec<IndentGuideLayout>> {
1929 let indent_guides = self.editor.update(cx, |editor, cx| {
1930 editor.indent_guides(visible_buffer_range, snapshot, cx)
1931 })?;
1932
1933 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1934 editor
1935 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1936 .unwrap_or_default()
1937 });
1938
1939 Some(
1940 indent_guides
1941 .into_iter()
1942 .enumerate()
1943 .filter_map(|(i, indent_guide)| {
1944 let single_indent_width =
1945 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1946 let total_width = single_indent_width * indent_guide.depth as f32;
1947 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1948 if start_x >= text_origin.x {
1949 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1950 indent_guide.start_row..indent_guide.end_row,
1951 line_height,
1952 snapshot,
1953 );
1954
1955 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1956
1957 Some(IndentGuideLayout {
1958 origin: point(start_x, start_y),
1959 length,
1960 single_indent_width,
1961 depth: indent_guide.depth,
1962 active: active_indent_guide_indices.contains(&i),
1963 settings: indent_guide.settings,
1964 })
1965 } else {
1966 None
1967 }
1968 })
1969 .collect(),
1970 )
1971 }
1972
1973 fn calculate_indent_guide_bounds(
1974 row_range: Range<MultiBufferRow>,
1975 line_height: Pixels,
1976 snapshot: &DisplaySnapshot,
1977 ) -> (gpui::Pixels, gpui::Pixels) {
1978 let start_point = Point::new(row_range.start.0, 0);
1979 let end_point = Point::new(row_range.end.0, 0);
1980
1981 let row_range = start_point.to_display_point(snapshot).row()
1982 ..end_point.to_display_point(snapshot).row();
1983
1984 let mut prev_line = start_point;
1985 prev_line.row = prev_line.row.saturating_sub(1);
1986 let prev_line = prev_line.to_display_point(snapshot).row();
1987
1988 let mut cons_line = end_point;
1989 cons_line.row += 1;
1990 let cons_line = cons_line.to_display_point(snapshot).row();
1991
1992 let mut offset_y = row_range.start.0 as f32 * line_height;
1993 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1994
1995 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1996 if row_range.end == cons_line {
1997 length += line_height;
1998 }
1999
2000 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2001 // we want to extend the indent guide to the start of the block.
2002 let mut block_height = 0;
2003 let mut block_offset = 0;
2004 let mut found_excerpt_header = false;
2005 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2006 if matches!(block, Block::ExcerptBoundary { .. }) {
2007 found_excerpt_header = true;
2008 break;
2009 }
2010 block_offset += block.height();
2011 block_height += block.height();
2012 }
2013 if !found_excerpt_header {
2014 offset_y -= block_offset as f32 * line_height;
2015 length += block_height as f32 * line_height;
2016 }
2017
2018 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2019 // we want to ensure that the indent guide stops before the excerpt header.
2020 let mut block_height = 0;
2021 let mut found_excerpt_header = false;
2022 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2023 if matches!(block, Block::ExcerptBoundary { .. }) {
2024 found_excerpt_header = true;
2025 }
2026 block_height += block.height();
2027 }
2028 if found_excerpt_header {
2029 length -= block_height as f32 * line_height;
2030 }
2031
2032 (offset_y, length)
2033 }
2034
2035 #[allow(clippy::too_many_arguments)]
2036 fn layout_run_indicators(
2037 &self,
2038 line_height: Pixels,
2039 range: Range<DisplayRow>,
2040 scroll_pixel_position: gpui::Point<Pixels>,
2041 gutter_dimensions: &GutterDimensions,
2042 gutter_hitbox: &Hitbox,
2043 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2044 snapshot: &EditorSnapshot,
2045 window: &mut Window,
2046 cx: &mut App,
2047 ) -> Vec<AnyElement> {
2048 self.editor.update(cx, |editor, cx| {
2049 let active_task_indicator_row =
2050 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2051 deployed_from_indicator,
2052 actions,
2053 ..
2054 })) = editor.context_menu.borrow().as_ref()
2055 {
2056 actions
2057 .tasks
2058 .as_ref()
2059 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2060 .or(*deployed_from_indicator)
2061 } else {
2062 None
2063 };
2064
2065 let offset_range_start =
2066 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2067
2068 let offset_range_end =
2069 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2070
2071 editor
2072 .tasks
2073 .iter()
2074 .filter_map(|(_, tasks)| {
2075 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2076 if multibuffer_point < offset_range_start
2077 || multibuffer_point > offset_range_end
2078 {
2079 return None;
2080 }
2081 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2082 let buffer_folded = snapshot
2083 .buffer_snapshot
2084 .buffer_line_for_row(multibuffer_row)
2085 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2086 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2087 .unwrap_or(false);
2088 if buffer_folded {
2089 return None;
2090 }
2091
2092 if snapshot.is_line_folded(multibuffer_row) {
2093 // Skip folded indicators, unless it's the starting line of a fold.
2094 if multibuffer_row
2095 .0
2096 .checked_sub(1)
2097 .map_or(false, |previous_row| {
2098 snapshot.is_line_folded(MultiBufferRow(previous_row))
2099 })
2100 {
2101 return None;
2102 }
2103 }
2104 let display_row = multibuffer_point.to_display_point(snapshot).row();
2105 let button = editor.render_run_indicator(
2106 &self.style,
2107 Some(display_row) == active_task_indicator_row,
2108 display_row,
2109 cx,
2110 );
2111
2112 let button = prepaint_gutter_button(
2113 button,
2114 display_row,
2115 line_height,
2116 gutter_dimensions,
2117 scroll_pixel_position,
2118 gutter_hitbox,
2119 rows_with_hunk_bounds,
2120 window,
2121 cx,
2122 );
2123 Some(button)
2124 })
2125 .collect_vec()
2126 })
2127 }
2128
2129 #[allow(clippy::too_many_arguments)]
2130 fn layout_code_actions_indicator(
2131 &self,
2132 line_height: Pixels,
2133 newest_selection_head: DisplayPoint,
2134 scroll_pixel_position: gpui::Point<Pixels>,
2135 gutter_dimensions: &GutterDimensions,
2136 gutter_hitbox: &Hitbox,
2137 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2138 window: &mut Window,
2139 cx: &mut App,
2140 ) -> Option<AnyElement> {
2141 let mut active = false;
2142 let mut button = None;
2143 let row = newest_selection_head.row();
2144 self.editor.update(cx, |editor, cx| {
2145 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2146 deployed_from_indicator,
2147 ..
2148 })) = editor.context_menu.borrow().as_ref()
2149 {
2150 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2151 };
2152 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2153 });
2154
2155 let button = prepaint_gutter_button(
2156 button?,
2157 row,
2158 line_height,
2159 gutter_dimensions,
2160 scroll_pixel_position,
2161 gutter_hitbox,
2162 rows_with_hunk_bounds,
2163 window,
2164 cx,
2165 );
2166
2167 Some(button)
2168 }
2169
2170 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2171 if let Some(index) = participant_index {
2172 cx.theme().players().color_for_participant(index.0)
2173 } else {
2174 cx.theme().players().absent()
2175 }
2176 }
2177
2178 fn calculate_relative_line_numbers(
2179 &self,
2180 snapshot: &EditorSnapshot,
2181 rows: &Range<DisplayRow>,
2182 relative_to: Option<DisplayRow>,
2183 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2184 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2185 let Some(relative_to) = relative_to else {
2186 return relative_rows;
2187 };
2188
2189 let start = rows.start.min(relative_to);
2190 let end = rows.end.max(relative_to);
2191
2192 let buffer_rows = snapshot
2193 .row_infos(start)
2194 .take(1 + end.minus(start) as usize)
2195 .collect::<Vec<_>>();
2196
2197 let head_idx = relative_to.minus(start);
2198 let mut delta = 1;
2199 let mut i = head_idx + 1;
2200 while i < buffer_rows.len() as u32 {
2201 if buffer_rows[i as usize].buffer_row.is_some() {
2202 if rows.contains(&DisplayRow(i + start.0)) {
2203 relative_rows.insert(DisplayRow(i + start.0), delta);
2204 }
2205 delta += 1;
2206 }
2207 i += 1;
2208 }
2209 delta = 1;
2210 i = head_idx.min(buffer_rows.len() as u32 - 1);
2211 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2212 i -= 1;
2213 }
2214
2215 while i > 0 {
2216 i -= 1;
2217 if buffer_rows[i as usize].buffer_row.is_some() {
2218 if rows.contains(&DisplayRow(i + start.0)) {
2219 relative_rows.insert(DisplayRow(i + start.0), delta);
2220 }
2221 delta += 1;
2222 }
2223 }
2224
2225 relative_rows
2226 }
2227
2228 #[allow(clippy::too_many_arguments)]
2229 fn layout_line_numbers(
2230 &self,
2231 gutter_hitbox: Option<&Hitbox>,
2232 gutter_dimensions: GutterDimensions,
2233 line_height: Pixels,
2234 scroll_position: gpui::Point<f32>,
2235 rows: Range<DisplayRow>,
2236 buffer_rows: &[RowInfo],
2237 newest_selection_head: Option<DisplayPoint>,
2238 snapshot: &EditorSnapshot,
2239 window: &mut Window,
2240 cx: &mut App,
2241 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2242 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2243 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2244 });
2245 if !include_line_numbers {
2246 return Arc::default();
2247 }
2248
2249 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2250 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2251 let newest = editor.selections.newest::<Point>(cx);
2252 SelectionLayout::new(
2253 newest,
2254 editor.selections.line_mode,
2255 editor.cursor_shape,
2256 &snapshot.display_snapshot,
2257 true,
2258 true,
2259 None,
2260 )
2261 .head
2262 });
2263 let is_relative = editor.should_use_relative_line_numbers(cx);
2264 (newest_selection_head, is_relative)
2265 });
2266
2267 let relative_to = if is_relative {
2268 Some(newest_selection_head.row())
2269 } else {
2270 None
2271 };
2272 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2273 let mut line_number = String::new();
2274 let line_numbers = buffer_rows
2275 .into_iter()
2276 .enumerate()
2277 .flat_map(|(ix, row_info)| {
2278 let display_row = DisplayRow(rows.start.0 + ix as u32);
2279 line_number.clear();
2280 let non_relative_number = row_info.buffer_row? + 1;
2281 let number = relative_rows
2282 .get(&display_row)
2283 .unwrap_or(&non_relative_number);
2284 write!(&mut line_number, "{number}").unwrap();
2285 if row_info
2286 .diff_status
2287 .is_some_and(|status| status.is_deleted())
2288 {
2289 return None;
2290 }
2291
2292 let color = cx.theme().colors().editor_line_number;
2293 let shaped_line = self
2294 .shape_line_number(SharedString::from(&line_number), color, window)
2295 .log_err()?;
2296 let scroll_top = scroll_position.y * line_height;
2297 let line_origin = gutter_hitbox.map(|hitbox| {
2298 hitbox.origin
2299 + point(
2300 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2301 ix as f32 * line_height - (scroll_top % line_height),
2302 )
2303 });
2304
2305 #[cfg(not(test))]
2306 let hitbox = line_origin.map(|line_origin| {
2307 window.insert_hitbox(
2308 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2309 false,
2310 )
2311 });
2312 #[cfg(test)]
2313 let hitbox = {
2314 let _ = line_origin;
2315 None
2316 };
2317
2318 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2319 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2320 let line_number = LineNumberLayout {
2321 shaped_line,
2322 hitbox,
2323 display_row,
2324 };
2325 Some((multi_buffer_row, line_number))
2326 })
2327 .collect();
2328 Arc::new(line_numbers)
2329 }
2330
2331 fn layout_crease_toggles(
2332 &self,
2333 rows: Range<DisplayRow>,
2334 row_infos: &[RowInfo],
2335 active_rows: &BTreeMap<DisplayRow, bool>,
2336 snapshot: &EditorSnapshot,
2337 window: &mut Window,
2338 cx: &mut App,
2339 ) -> Vec<Option<AnyElement>> {
2340 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2341 && snapshot.mode == EditorMode::Full
2342 && self.editor.read(cx).is_singleton(cx);
2343 if include_fold_statuses {
2344 row_infos
2345 .into_iter()
2346 .enumerate()
2347 .map(|(ix, info)| {
2348 let row = info.multibuffer_row?;
2349 let display_row = DisplayRow(rows.start.0 + ix as u32);
2350 let active = active_rows.contains_key(&display_row);
2351
2352 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2353 })
2354 .collect()
2355 } else {
2356 Vec::new()
2357 }
2358 }
2359
2360 fn layout_crease_trailers(
2361 &self,
2362 buffer_rows: impl IntoIterator<Item = RowInfo>,
2363 snapshot: &EditorSnapshot,
2364 window: &mut Window,
2365 cx: &mut App,
2366 ) -> Vec<Option<AnyElement>> {
2367 buffer_rows
2368 .into_iter()
2369 .map(|row_info| {
2370 if let Some(row) = row_info.multibuffer_row {
2371 snapshot.render_crease_trailer(row, window, cx)
2372 } else {
2373 None
2374 }
2375 })
2376 .collect()
2377 }
2378
2379 fn layout_lines(
2380 rows: Range<DisplayRow>,
2381 snapshot: &EditorSnapshot,
2382 style: &EditorStyle,
2383 editor_width: Pixels,
2384 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2385 window: &mut Window,
2386 cx: &mut App,
2387 ) -> Vec<LineWithInvisibles> {
2388 if rows.start >= rows.end {
2389 return Vec::new();
2390 }
2391
2392 // Show the placeholder when the editor is empty
2393 if snapshot.is_empty() {
2394 let font_size = style.text.font_size.to_pixels(window.rem_size());
2395 let placeholder_color = cx.theme().colors().text_placeholder;
2396 let placeholder_text = snapshot.placeholder_text();
2397
2398 let placeholder_lines = placeholder_text
2399 .as_ref()
2400 .map_or("", AsRef::as_ref)
2401 .split('\n')
2402 .skip(rows.start.0 as usize)
2403 .chain(iter::repeat(""))
2404 .take(rows.len());
2405 placeholder_lines
2406 .filter_map(move |line| {
2407 let run = TextRun {
2408 len: line.len(),
2409 font: style.text.font(),
2410 color: placeholder_color,
2411 background_color: None,
2412 underline: Default::default(),
2413 strikethrough: None,
2414 };
2415 window
2416 .text_system()
2417 .shape_line(line.to_string().into(), font_size, &[run])
2418 .log_err()
2419 })
2420 .map(|line| LineWithInvisibles {
2421 width: line.width,
2422 len: line.len,
2423 fragments: smallvec![LineFragment::Text(line)],
2424 invisibles: Vec::new(),
2425 font_size,
2426 })
2427 .collect()
2428 } else {
2429 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2430 LineWithInvisibles::from_chunks(
2431 chunks,
2432 &style,
2433 MAX_LINE_LEN,
2434 rows.len(),
2435 snapshot.mode,
2436 editor_width,
2437 is_row_soft_wrapped,
2438 window,
2439 cx,
2440 )
2441 }
2442 }
2443
2444 #[allow(clippy::too_many_arguments)]
2445 fn prepaint_lines(
2446 &self,
2447 start_row: DisplayRow,
2448 line_layouts: &mut [LineWithInvisibles],
2449 line_height: Pixels,
2450 scroll_pixel_position: gpui::Point<Pixels>,
2451 content_origin: gpui::Point<Pixels>,
2452 window: &mut Window,
2453 cx: &mut App,
2454 ) -> SmallVec<[AnyElement; 1]> {
2455 let mut line_elements = SmallVec::new();
2456 for (ix, line) in line_layouts.iter_mut().enumerate() {
2457 let row = start_row + DisplayRow(ix as u32);
2458 line.prepaint(
2459 line_height,
2460 scroll_pixel_position,
2461 row,
2462 content_origin,
2463 &mut line_elements,
2464 window,
2465 cx,
2466 );
2467 }
2468 line_elements
2469 }
2470
2471 #[allow(clippy::too_many_arguments)]
2472 fn render_block(
2473 &self,
2474 block: &Block,
2475 available_width: AvailableSpace,
2476 block_id: BlockId,
2477 block_row_start: DisplayRow,
2478 snapshot: &EditorSnapshot,
2479 text_x: Pixels,
2480 rows: &Range<DisplayRow>,
2481 line_layouts: &[LineWithInvisibles],
2482 gutter_dimensions: &GutterDimensions,
2483 line_height: Pixels,
2484 em_width: Pixels,
2485 text_hitbox: &Hitbox,
2486 editor_width: Pixels,
2487 scroll_width: &mut Pixels,
2488 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2489 selections: &[Selection<Point>],
2490 selected_buffer_ids: &Vec<BufferId>,
2491 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2492 sticky_header_excerpt_id: Option<ExcerptId>,
2493 window: &mut Window,
2494 cx: &mut App,
2495 ) -> (AnyElement, Size<Pixels>) {
2496 let mut element = match block {
2497 Block::Custom(block) => {
2498 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2499 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2500 let align_to = block_start.to_display_point(snapshot);
2501 let anchor_x = text_x
2502 + if rows.contains(&align_to.row()) {
2503 line_layouts[align_to.row().minus(rows.start) as usize]
2504 .x_for_index(align_to.column() as usize)
2505 } else {
2506 layout_line(
2507 align_to.row(),
2508 snapshot,
2509 &self.style,
2510 editor_width,
2511 is_row_soft_wrapped,
2512 window,
2513 cx,
2514 )
2515 .x_for_index(align_to.column() as usize)
2516 };
2517
2518 let selected = selections
2519 .binary_search_by(|selection| {
2520 if selection.end <= block_start {
2521 Ordering::Less
2522 } else if selection.start >= block_end {
2523 Ordering::Greater
2524 } else {
2525 Ordering::Equal
2526 }
2527 })
2528 .is_ok();
2529
2530 div()
2531 .size_full()
2532 .child(block.render(&mut BlockContext {
2533 window,
2534 app: cx,
2535 anchor_x,
2536 gutter_dimensions,
2537 line_height,
2538 em_width,
2539 block_id,
2540 selected,
2541 max_width: text_hitbox.size.width.max(*scroll_width),
2542 editor_style: &self.style,
2543 }))
2544 .into_any()
2545 }
2546
2547 Block::FoldedBuffer {
2548 first_excerpt,
2549 prev_excerpt,
2550 show_excerpt_controls,
2551 height,
2552 } => {
2553 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2554 let mut result = v_flex().id(block_id).w_full();
2555
2556 if let Some(prev_excerpt) = prev_excerpt {
2557 if *show_excerpt_controls {
2558 result = result.child(self.render_expand_excerpt_control(
2559 block_id,
2560 ExpandExcerptDirection::Down,
2561 prev_excerpt.id,
2562 gutter_dimensions,
2563 window,
2564 cx,
2565 ));
2566 }
2567 }
2568
2569 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2570 result
2571 .child(self.render_buffer_header(
2572 first_excerpt,
2573 true,
2574 selected,
2575 jump_data,
2576 window,
2577 cx,
2578 ))
2579 .into_any_element()
2580 }
2581
2582 Block::ExcerptBoundary {
2583 prev_excerpt,
2584 next_excerpt,
2585 show_excerpt_controls,
2586 height,
2587 starts_new_buffer,
2588 } => {
2589 let color = cx.theme().colors().clone();
2590 let mut result = v_flex().id(block_id).w_full();
2591
2592 if let Some(prev_excerpt) = prev_excerpt {
2593 if *show_excerpt_controls {
2594 result = result.child(self.render_expand_excerpt_control(
2595 block_id,
2596 ExpandExcerptDirection::Down,
2597 prev_excerpt.id,
2598 gutter_dimensions,
2599 window,
2600 cx,
2601 ));
2602 }
2603 }
2604
2605 if let Some(next_excerpt) = next_excerpt {
2606 let jump_data =
2607 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2608
2609 if *starts_new_buffer {
2610 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2611 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2612
2613 result = result.child(self.render_buffer_header(
2614 next_excerpt,
2615 false,
2616 selected,
2617 jump_data,
2618 window,
2619 cx,
2620 ));
2621 } else {
2622 result = result
2623 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2624 }
2625
2626 if *show_excerpt_controls {
2627 result = result.child(self.render_expand_excerpt_control(
2628 block_id,
2629 ExpandExcerptDirection::Up,
2630 next_excerpt.id,
2631 gutter_dimensions,
2632 window,
2633 cx,
2634 ));
2635 }
2636 } else {
2637 if *show_excerpt_controls {
2638 result = result.child(
2639 h_flex()
2640 .relative()
2641 .child(
2642 div()
2643 .top(px(0.))
2644 .absolute()
2645 .w_full()
2646 .h_px()
2647 .bg(color.border_variant),
2648 )
2649 .child(self.render_expand_excerpt_control(
2650 block_id,
2651 ExpandExcerptDirection::Up,
2652 next_excerpt.id,
2653 gutter_dimensions,
2654 window,
2655 cx,
2656 )),
2657 );
2658 }
2659 };
2660 }
2661
2662 result.into_any()
2663 }
2664 };
2665
2666 // Discover the element's content height, then round up to the nearest multiple of line height.
2667 let preliminary_size = element.layout_as_root(
2668 size(available_width, AvailableSpace::MinContent),
2669 window,
2670 cx,
2671 );
2672 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2673 let final_size = if preliminary_size.height == quantized_height {
2674 preliminary_size
2675 } else {
2676 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2677 };
2678
2679 if let BlockId::Custom(custom_block_id) = block_id {
2680 if block.height() > 0 {
2681 let element_height_in_lines =
2682 ((final_size.height / line_height).ceil() as u32).max(1);
2683 if element_height_in_lines != block.height() {
2684 resized_blocks.insert(custom_block_id, element_height_in_lines);
2685 }
2686 }
2687 }
2688
2689 (element, final_size)
2690 }
2691
2692 fn render_buffer_header(
2693 &self,
2694 for_excerpt: &ExcerptInfo,
2695 is_folded: bool,
2696 is_selected: bool,
2697 jump_data: JumpData,
2698 window: &mut Window,
2699 cx: &mut App,
2700 ) -> Div {
2701 let include_root = self
2702 .editor
2703 .read(cx)
2704 .project
2705 .as_ref()
2706 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2707 .unwrap_or_default();
2708 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2709 let filename = path
2710 .as_ref()
2711 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2712 let parent_path = path.as_ref().and_then(|path| {
2713 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2714 });
2715 let focus_handle = self.editor.focus_handle(cx);
2716 let colors = cx.theme().colors();
2717
2718 div()
2719 .px_2()
2720 .pt_2()
2721 .w_full()
2722 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2723 .child(
2724 h_flex()
2725 .size_full()
2726 .gap_2()
2727 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2728 .pl_0p5()
2729 .pr_5()
2730 .rounded_md()
2731 .shadow_md()
2732 .border_1()
2733 .map(|div| {
2734 let border_color = if is_selected && is_folded {
2735 colors.border_focused
2736 } else {
2737 colors.border
2738 };
2739 div.border_color(border_color)
2740 })
2741 .bg(colors.editor_subheader_background)
2742 .hover(|style| style.bg(colors.element_hover))
2743 .map(|header| {
2744 let editor = self.editor.clone();
2745 let buffer_id = for_excerpt.buffer_id;
2746 let toggle_chevron_icon =
2747 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2748 header.child(
2749 div()
2750 .hover(|style| style.bg(colors.element_selected))
2751 .rounded_sm()
2752 .child(
2753 ButtonLike::new("toggle-buffer-fold")
2754 .style(ui::ButtonStyle::Transparent)
2755 .size(ButtonSize::Large)
2756 .width(px(30.).into())
2757 .children(toggle_chevron_icon)
2758 .tooltip({
2759 let focus_handle = focus_handle.clone();
2760 move |window, cx| {
2761 Tooltip::for_action_in(
2762 "Toggle Excerpt Fold",
2763 &ToggleFold,
2764 &focus_handle,
2765 window,
2766 cx,
2767 )
2768 }
2769 })
2770 .on_click(move |_, _, cx| {
2771 if is_folded {
2772 editor.update(cx, |editor, cx| {
2773 editor.unfold_buffer(buffer_id, cx);
2774 });
2775 } else {
2776 editor.update(cx, |editor, cx| {
2777 editor.fold_buffer(buffer_id, cx);
2778 });
2779 }
2780 }),
2781 ),
2782 )
2783 })
2784 .children(
2785 self.editor
2786 .read(cx)
2787 .addons
2788 .values()
2789 .filter_map(|addon| {
2790 addon.render_buffer_header_controls(for_excerpt, window, cx)
2791 })
2792 .take(1),
2793 )
2794 .child(
2795 h_flex()
2796 .cursor_pointer()
2797 .id("path header block")
2798 .size_full()
2799 .justify_between()
2800 .child(
2801 h_flex()
2802 .gap_2()
2803 .child(
2804 filename
2805 .map(SharedString::from)
2806 .unwrap_or_else(|| "untitled".into()),
2807 )
2808 .when_some(parent_path, |then, path| {
2809 then.child(div().child(path).text_color(colors.text_muted))
2810 }),
2811 )
2812 .when(is_selected, |el| {
2813 el.child(
2814 h_flex()
2815 .id("jump-to-file-button")
2816 .gap_2p5()
2817 .child(Label::new("Jump To File"))
2818 .children(
2819 KeyBinding::for_action_in(
2820 &OpenExcerpts,
2821 &focus_handle,
2822 window,
2823 cx,
2824 )
2825 .map(|binding| binding.into_any_element()),
2826 ),
2827 )
2828 })
2829 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2830 .on_click(window.listener_for(&self.editor, {
2831 move |editor, e: &ClickEvent, window, cx| {
2832 editor.open_excerpts_common(
2833 Some(jump_data.clone()),
2834 e.down.modifiers.secondary(),
2835 window,
2836 cx,
2837 );
2838 }
2839 })),
2840 ),
2841 )
2842 }
2843
2844 fn render_expand_excerpt_control(
2845 &self,
2846 block_id: BlockId,
2847 direction: ExpandExcerptDirection,
2848 excerpt_id: ExcerptId,
2849 gutter_dimensions: &GutterDimensions,
2850 window: &Window,
2851 cx: &mut App,
2852 ) -> impl IntoElement {
2853 let color = cx.theme().colors().clone();
2854 let hover_color = color.border_variant.opacity(0.5);
2855 let focus_handle = self.editor.focus_handle(cx).clone();
2856
2857 let icon_offset =
2858 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2859 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2860 let group_name = if direction == ExpandExcerptDirection::Down {
2861 "expand-down"
2862 } else {
2863 "expand-up"
2864 };
2865
2866 let expand_area = |id: SharedString| {
2867 h_flex()
2868 .id(id)
2869 .w_full()
2870 .cursor_pointer()
2871 .block_mouse_down()
2872 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2873 .hover(|style| style.bg(hover_color))
2874 .tooltip({
2875 let focus_handle = focus_handle.clone();
2876 move |window, cx| {
2877 Tooltip::for_action_in(
2878 "Expand Excerpt",
2879 &ExpandExcerpts { lines: 0 },
2880 &focus_handle,
2881 window,
2882 cx,
2883 )
2884 }
2885 })
2886 };
2887
2888 expand_area(
2889 format!(
2890 "block-{}-{}",
2891 block_id,
2892 if direction == ExpandExcerptDirection::Down {
2893 "down"
2894 } else {
2895 "up"
2896 }
2897 )
2898 .into(),
2899 )
2900 .group(group_name)
2901 .child(
2902 h_flex()
2903 .w(icon_offset)
2904 .h(header_height)
2905 .flex_none()
2906 .justify_end()
2907 .child(
2908 ButtonLike::new("expand-icon")
2909 .style(ButtonStyle::Transparent)
2910 .child(
2911 svg()
2912 .path(if direction == ExpandExcerptDirection::Down {
2913 IconName::ArrowDownFromLine.path()
2914 } else {
2915 IconName::ArrowUpFromLine.path()
2916 })
2917 .size(IconSize::XSmall.rems())
2918 .text_color(cx.theme().colors().editor_line_number)
2919 .group_hover(group_name, |style| {
2920 style.text_color(cx.theme().colors().editor_active_line_number)
2921 }),
2922 ),
2923 ),
2924 )
2925 .on_click(window.listener_for(&self.editor, {
2926 move |editor, _, _, cx| {
2927 editor.expand_excerpt(excerpt_id, direction, cx);
2928 cx.stop_propagation();
2929 }
2930 }))
2931 }
2932
2933 #[allow(clippy::too_many_arguments)]
2934 fn render_blocks(
2935 &self,
2936 rows: Range<DisplayRow>,
2937 snapshot: &EditorSnapshot,
2938 hitbox: &Hitbox,
2939 text_hitbox: &Hitbox,
2940 editor_width: Pixels,
2941 scroll_width: &mut Pixels,
2942 gutter_dimensions: &GutterDimensions,
2943 em_width: Pixels,
2944 text_x: Pixels,
2945 line_height: Pixels,
2946 line_layouts: &[LineWithInvisibles],
2947 selections: &[Selection<Point>],
2948 selected_buffer_ids: &Vec<BufferId>,
2949 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2950 sticky_header_excerpt_id: Option<ExcerptId>,
2951 window: &mut Window,
2952 cx: &mut App,
2953 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2954 let (fixed_blocks, non_fixed_blocks) = snapshot
2955 .blocks_in_range(rows.clone())
2956 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2957
2958 let mut focused_block = self
2959 .editor
2960 .update(cx, |editor, _| editor.take_focused_block());
2961 let mut fixed_block_max_width = Pixels::ZERO;
2962 let mut blocks = Vec::new();
2963 let mut resized_blocks = HashMap::default();
2964
2965 for (row, block) in fixed_blocks {
2966 let block_id = block.id();
2967
2968 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2969 focused_block = None;
2970 }
2971
2972 let (element, element_size) = self.render_block(
2973 block,
2974 AvailableSpace::MinContent,
2975 block_id,
2976 row,
2977 snapshot,
2978 text_x,
2979 &rows,
2980 line_layouts,
2981 gutter_dimensions,
2982 line_height,
2983 em_width,
2984 text_hitbox,
2985 editor_width,
2986 scroll_width,
2987 &mut resized_blocks,
2988 selections,
2989 selected_buffer_ids,
2990 is_row_soft_wrapped,
2991 sticky_header_excerpt_id,
2992 window,
2993 cx,
2994 );
2995 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2996 blocks.push(BlockLayout {
2997 id: block_id,
2998 row: Some(row),
2999 element,
3000 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3001 style: BlockStyle::Fixed,
3002 });
3003 }
3004
3005 for (row, block) in non_fixed_blocks {
3006 let style = block.style();
3007 let width = match style {
3008 BlockStyle::Sticky => hitbox.size.width,
3009 BlockStyle::Flex => hitbox
3010 .size
3011 .width
3012 .max(fixed_block_max_width)
3013 .max(gutter_dimensions.width + *scroll_width),
3014 BlockStyle::Fixed => unreachable!(),
3015 };
3016 let block_id = block.id();
3017
3018 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3019 focused_block = None;
3020 }
3021
3022 let (element, element_size) = self.render_block(
3023 block,
3024 width.into(),
3025 block_id,
3026 row,
3027 snapshot,
3028 text_x,
3029 &rows,
3030 line_layouts,
3031 gutter_dimensions,
3032 line_height,
3033 em_width,
3034 text_hitbox,
3035 editor_width,
3036 scroll_width,
3037 &mut resized_blocks,
3038 selections,
3039 selected_buffer_ids,
3040 is_row_soft_wrapped,
3041 sticky_header_excerpt_id,
3042 window,
3043 cx,
3044 );
3045
3046 blocks.push(BlockLayout {
3047 id: block_id,
3048 row: Some(row),
3049 element,
3050 available_space: size(width.into(), element_size.height.into()),
3051 style,
3052 });
3053 }
3054
3055 if let Some(focused_block) = focused_block {
3056 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3057 if focus_handle.is_focused(window) {
3058 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3059 let style = block.style();
3060 let width = match style {
3061 BlockStyle::Fixed => AvailableSpace::MinContent,
3062 BlockStyle::Flex => AvailableSpace::Definite(
3063 hitbox
3064 .size
3065 .width
3066 .max(fixed_block_max_width)
3067 .max(gutter_dimensions.width + *scroll_width),
3068 ),
3069 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3070 };
3071
3072 let (element, element_size) = self.render_block(
3073 &block,
3074 width,
3075 focused_block.id,
3076 rows.end,
3077 snapshot,
3078 text_x,
3079 &rows,
3080 line_layouts,
3081 gutter_dimensions,
3082 line_height,
3083 em_width,
3084 text_hitbox,
3085 editor_width,
3086 scroll_width,
3087 &mut resized_blocks,
3088 selections,
3089 selected_buffer_ids,
3090 is_row_soft_wrapped,
3091 sticky_header_excerpt_id,
3092 window,
3093 cx,
3094 );
3095
3096 blocks.push(BlockLayout {
3097 id: block.id(),
3098 row: None,
3099 element,
3100 available_space: size(width, element_size.height.into()),
3101 style,
3102 });
3103 }
3104 }
3105 }
3106 }
3107
3108 if resized_blocks.is_empty() {
3109 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3110 Ok(blocks)
3111 } else {
3112 Err(resized_blocks)
3113 }
3114 }
3115
3116 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3117 /// a restart of rendering for the editor based on the new sizes.
3118 #[allow(clippy::too_many_arguments)]
3119 fn layout_blocks(
3120 &self,
3121 blocks: &mut Vec<BlockLayout>,
3122 block_starts: &mut HashSet<DisplayRow>,
3123 hitbox: &Hitbox,
3124 line_height: Pixels,
3125 scroll_pixel_position: gpui::Point<Pixels>,
3126 window: &mut Window,
3127 cx: &mut App,
3128 ) {
3129 for block in blocks {
3130 let mut origin = if let Some(row) = block.row {
3131 block_starts.insert(row);
3132 hitbox.origin
3133 + point(
3134 Pixels::ZERO,
3135 row.as_f32() * line_height - scroll_pixel_position.y,
3136 )
3137 } else {
3138 // Position the block outside the visible area
3139 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3140 };
3141
3142 if !matches!(block.style, BlockStyle::Sticky) {
3143 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3144 }
3145
3146 let focus_handle =
3147 block
3148 .element
3149 .prepaint_as_root(origin, block.available_space, window, cx);
3150
3151 if let Some(focus_handle) = focus_handle {
3152 self.editor.update(cx, |editor, _cx| {
3153 editor.set_focused_block(FocusedBlock {
3154 id: block.id,
3155 focus_handle: focus_handle.downgrade(),
3156 });
3157 });
3158 }
3159 }
3160 }
3161
3162 #[allow(clippy::too_many_arguments)]
3163 fn layout_sticky_buffer_header(
3164 &self,
3165 StickyHeaderExcerpt {
3166 excerpt,
3167 next_excerpt_controls_present,
3168 next_buffer_row,
3169 }: StickyHeaderExcerpt<'_>,
3170 scroll_position: f32,
3171 line_height: Pixels,
3172 snapshot: &EditorSnapshot,
3173 hitbox: &Hitbox,
3174 selected_buffer_ids: &Vec<BufferId>,
3175 window: &mut Window,
3176 cx: &mut App,
3177 ) -> AnyElement {
3178 let jump_data = header_jump_data(
3179 snapshot,
3180 DisplayRow(scroll_position as u32),
3181 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3182 excerpt,
3183 );
3184
3185 let editor_bg_color = cx.theme().colors().editor_background;
3186
3187 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3188
3189 let mut header = v_flex()
3190 .relative()
3191 .child(
3192 div()
3193 .w(hitbox.bounds.size.width)
3194 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3195 .bg(linear_gradient(
3196 0.,
3197 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3198 linear_color_stop(editor_bg_color, 0.6),
3199 ))
3200 .absolute()
3201 .top_0(),
3202 )
3203 .child(
3204 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3205 .into_any_element(),
3206 )
3207 .into_any_element();
3208
3209 let mut origin = hitbox.origin;
3210
3211 if let Some(next_buffer_row) = next_buffer_row {
3212 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3213
3214 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3215
3216 if next_excerpt_controls_present {
3217 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3218 }
3219
3220 let offset = scroll_position - max_row as f32;
3221
3222 if offset > 0.0 {
3223 origin.y -= Pixels(offset) * line_height;
3224 }
3225 }
3226
3227 let size = size(
3228 AvailableSpace::Definite(hitbox.size.width),
3229 AvailableSpace::MinContent,
3230 );
3231
3232 header.prepaint_as_root(origin, size, window, cx);
3233
3234 header
3235 }
3236
3237 #[allow(clippy::too_many_arguments)]
3238 fn layout_cursor_popovers(
3239 &self,
3240 line_height: Pixels,
3241 text_hitbox: &Hitbox,
3242 content_origin: gpui::Point<Pixels>,
3243 start_row: DisplayRow,
3244 scroll_pixel_position: gpui::Point<Pixels>,
3245 line_layouts: &[LineWithInvisibles],
3246 cursor: DisplayPoint,
3247 cursor_point: Point,
3248 style: &EditorStyle,
3249 window: &mut Window,
3250 cx: &mut App,
3251 ) {
3252 let mut min_menu_height = Pixels::ZERO;
3253 let mut max_menu_height = Pixels::ZERO;
3254 let mut height_above_menu = Pixels::ZERO;
3255 let height_below_menu = Pixels::ZERO;
3256 let mut edit_prediction_popover_visible = false;
3257 let mut context_menu_visible = false;
3258
3259 {
3260 let editor = self.editor.read(cx);
3261 if editor
3262 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3263 {
3264 height_above_menu +=
3265 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3266 edit_prediction_popover_visible = true;
3267 }
3268
3269 if editor.context_menu_visible() {
3270 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3271 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3272 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3273 context_menu_visible = true;
3274 }
3275 }
3276 }
3277
3278 let visible = edit_prediction_popover_visible || context_menu_visible;
3279 if !visible {
3280 return;
3281 }
3282
3283 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3284 let target_position = content_origin
3285 + gpui::Point {
3286 x: cmp::max(
3287 px(0.),
3288 cursor_row_layout.x_for_index(cursor.column() as usize)
3289 - scroll_pixel_position.x,
3290 ),
3291 y: cmp::max(
3292 px(0.),
3293 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3294 ),
3295 };
3296
3297 let viewport_bounds =
3298 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3299 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3300 ..Default::default()
3301 });
3302
3303 let min_height = height_above_menu + min_menu_height + height_below_menu;
3304 let max_height = height_above_menu + max_menu_height + height_below_menu;
3305 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3306 target_position,
3307 line_height,
3308 min_height,
3309 max_height,
3310 text_hitbox,
3311 viewport_bounds,
3312 window,
3313 cx,
3314 |height, max_width_for_stable_x, y_flipped, window, cx| {
3315 // First layout the menu to get its size - others can be at least this wide.
3316 let context_menu = if context_menu_visible {
3317 let menu_height = if y_flipped {
3318 height - height_below_menu
3319 } else {
3320 height - height_above_menu
3321 };
3322 let mut element = self
3323 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3324 .expect("Visible context menu should always render.");
3325 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3326 Some((CursorPopoverType::CodeContextMenu, element, size))
3327 } else {
3328 None
3329 };
3330 let min_width = context_menu
3331 .as_ref()
3332 .map_or(px(0.), |(_, _, size)| size.width);
3333 let max_width = max_width_for_stable_x.max(
3334 context_menu
3335 .as_ref()
3336 .map_or(px(0.), |(_, _, size)| size.width),
3337 );
3338
3339 let edit_prediction = if edit_prediction_popover_visible {
3340 self.editor.update(cx, move |editor, cx| {
3341 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3342 let mut element = editor.render_edit_prediction_cursor_popover(
3343 min_width,
3344 max_width,
3345 cursor_point,
3346 style,
3347 accept_binding.keystroke(),
3348 window,
3349 cx,
3350 )?;
3351 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3352 Some((CursorPopoverType::EditPrediction, element, size))
3353 })
3354 } else {
3355 None
3356 };
3357 vec![edit_prediction, context_menu]
3358 .into_iter()
3359 .flatten()
3360 .collect::<Vec<_>>()
3361 },
3362 ) else {
3363 return;
3364 };
3365
3366 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3367 .iter()
3368 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3369 else {
3370 return;
3371 };
3372 let last_ix = laid_out_popovers.len() - 1;
3373 let menu_is_last = menu_ix == last_ix;
3374 let first_popover_bounds = laid_out_popovers[0].1;
3375 let last_popover_bounds = laid_out_popovers[last_ix].1;
3376
3377 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3378 // right, and otherwise it goes below or to the right.
3379 let mut target_bounds = Bounds::from_corners(
3380 first_popover_bounds.origin,
3381 last_popover_bounds.bottom_right(),
3382 );
3383 target_bounds.size.width = menu_bounds.size.width;
3384
3385 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3386 // based on this is preferred for layout stability.
3387 let mut max_target_bounds = target_bounds;
3388 max_target_bounds.size.height = max_height;
3389 if y_flipped {
3390 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3391 }
3392
3393 // Add spacing around `target_bounds` and `max_target_bounds`.
3394 let mut extend_amount = Edges::all(MENU_GAP);
3395 if y_flipped {
3396 extend_amount.bottom = line_height;
3397 } else {
3398 extend_amount.top = line_height;
3399 }
3400 let target_bounds = target_bounds.extend(extend_amount);
3401 let max_target_bounds = max_target_bounds.extend(extend_amount);
3402
3403 let must_place_above_or_below =
3404 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3405 laid_out_popovers[menu_ix + 1..]
3406 .iter()
3407 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3408 } else {
3409 false
3410 };
3411
3412 self.layout_context_menu_aside(
3413 y_flipped,
3414 *menu_bounds,
3415 target_bounds,
3416 max_target_bounds,
3417 max_menu_height,
3418 must_place_above_or_below,
3419 text_hitbox,
3420 viewport_bounds,
3421 window,
3422 cx,
3423 );
3424 }
3425
3426 #[allow(clippy::too_many_arguments)]
3427 fn layout_gutter_menu(
3428 &self,
3429 line_height: Pixels,
3430 text_hitbox: &Hitbox,
3431 content_origin: gpui::Point<Pixels>,
3432 scroll_pixel_position: gpui::Point<Pixels>,
3433 gutter_overshoot: Pixels,
3434 window: &mut Window,
3435 cx: &mut App,
3436 ) {
3437 let editor = self.editor.read(cx);
3438 if !editor.context_menu_visible() {
3439 return;
3440 }
3441 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3442 editor.context_menu_origin()
3443 else {
3444 return;
3445 };
3446 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3447 // indicator than just a plain first column of the text field.
3448 let target_position = content_origin
3449 + gpui::Point {
3450 x: -gutter_overshoot,
3451 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3452 };
3453 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3454 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3455 let viewport_bounds =
3456 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3457 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3458 ..Default::default()
3459 });
3460 self.layout_popovers_above_or_below_line(
3461 target_position,
3462 line_height,
3463 min_height,
3464 max_height,
3465 text_hitbox,
3466 viewport_bounds,
3467 window,
3468 cx,
3469 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3470 let mut element = self
3471 .render_context_menu(line_height, height, y_flipped, window, cx)
3472 .expect("Visible context menu should always render.");
3473 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3474 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3475 },
3476 );
3477 }
3478
3479 #[allow(clippy::too_many_arguments)]
3480 fn layout_popovers_above_or_below_line(
3481 &self,
3482 target_position: gpui::Point<Pixels>,
3483 line_height: Pixels,
3484 min_height: Pixels,
3485 max_height: Pixels,
3486 text_hitbox: &Hitbox,
3487 viewport_bounds: Bounds<Pixels>,
3488 window: &mut Window,
3489 cx: &mut App,
3490 make_sized_popovers: impl FnOnce(
3491 Pixels,
3492 Pixels,
3493 bool,
3494 &mut Window,
3495 &mut App,
3496 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3497 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3498 let text_style = TextStyleRefinement {
3499 line_height: Some(DefiniteLength::Fraction(
3500 BufferLineHeight::Comfortable.value(),
3501 )),
3502 ..Default::default()
3503 };
3504 window.with_text_style(Some(text_style), |window| {
3505 // If the max height won't fit below and there is more space above, put it above the line.
3506 let bottom_y_when_flipped = target_position.y - line_height;
3507 let available_above = bottom_y_when_flipped - text_hitbox.top();
3508 let available_below = text_hitbox.bottom() - target_position.y;
3509 let y_overflows_below = max_height > available_below;
3510 let mut y_flipped = y_overflows_below && available_above > available_below;
3511 let mut height = cmp::min(
3512 max_height,
3513 if y_flipped {
3514 available_above
3515 } else {
3516 available_below
3517 },
3518 );
3519
3520 // If the min height doesn't fit within text bounds, instead fit within the window.
3521 if height < min_height {
3522 let available_above = bottom_y_when_flipped;
3523 let available_below = viewport_bounds.bottom() - target_position.y;
3524 if available_below > min_height {
3525 y_flipped = false;
3526 height = min_height;
3527 } else if available_above > min_height {
3528 y_flipped = true;
3529 height = min_height;
3530 } else if available_above > available_below {
3531 y_flipped = true;
3532 height = available_above;
3533 } else {
3534 y_flipped = false;
3535 height = available_below;
3536 }
3537 }
3538
3539 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3540
3541 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3542 // for very narrow windows.
3543 let popovers =
3544 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3545 if popovers.is_empty() {
3546 return None;
3547 }
3548
3549 let max_width = popovers
3550 .iter()
3551 .map(|(_, _, size)| size.width)
3552 .max()
3553 .unwrap_or_default();
3554
3555 let mut current_position = gpui::Point {
3556 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3557 // overflow. Include space for the scrollbar.
3558 x: target_position
3559 .x
3560 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3561 y: if y_flipped {
3562 bottom_y_when_flipped
3563 } else {
3564 target_position.y
3565 },
3566 };
3567
3568 let mut laid_out_popovers = popovers
3569 .into_iter()
3570 .map(|(popover_type, element, size)| {
3571 if y_flipped {
3572 current_position.y -= size.height;
3573 }
3574 let position = current_position;
3575 window.defer_draw(element, current_position, 1);
3576 if !y_flipped {
3577 current_position.y += size.height + MENU_GAP;
3578 } else {
3579 current_position.y -= MENU_GAP;
3580 }
3581 (popover_type, Bounds::new(position, size))
3582 })
3583 .collect::<Vec<_>>();
3584
3585 if y_flipped {
3586 laid_out_popovers.reverse();
3587 }
3588
3589 Some((laid_out_popovers, y_flipped))
3590 })
3591 }
3592
3593 #[allow(clippy::too_many_arguments)]
3594 fn layout_context_menu_aside(
3595 &self,
3596 y_flipped: bool,
3597 menu_bounds: Bounds<Pixels>,
3598 target_bounds: Bounds<Pixels>,
3599 max_target_bounds: Bounds<Pixels>,
3600 max_height: Pixels,
3601 must_place_above_or_below: bool,
3602 text_hitbox: &Hitbox,
3603 viewport_bounds: Bounds<Pixels>,
3604 window: &mut Window,
3605 cx: &mut App,
3606 ) {
3607 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3608 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3609 && !must_place_above_or_below
3610 {
3611 let max_width = cmp::min(
3612 available_within_viewport.right - px(1.),
3613 MENU_ASIDE_MAX_WIDTH,
3614 );
3615 let Some(mut aside) = self.render_context_menu_aside(
3616 size(max_width, max_height - POPOVER_Y_PADDING),
3617 window,
3618 cx,
3619 ) else {
3620 return;
3621 };
3622 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3623 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3624 Some((aside, right_position))
3625 } else {
3626 let max_size = size(
3627 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3628 // won't be needed here.
3629 cmp::min(
3630 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3631 viewport_bounds.right(),
3632 ),
3633 cmp::min(
3634 max_height,
3635 cmp::max(
3636 available_within_viewport.top,
3637 available_within_viewport.bottom,
3638 ),
3639 ) - POPOVER_Y_PADDING,
3640 );
3641 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3642 return;
3643 };
3644 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3645
3646 let top_position = point(
3647 menu_bounds.origin.x,
3648 target_bounds.top() - actual_size.height,
3649 );
3650 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3651
3652 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3653 // Prefer to fit on the same side of the line as the menu, then on the other side of
3654 // the line.
3655 if !y_flipped && wanted.height < available.bottom {
3656 Some(bottom_position)
3657 } else if !y_flipped && wanted.height < available.top {
3658 Some(top_position)
3659 } else if y_flipped && wanted.height < available.top {
3660 Some(top_position)
3661 } else if y_flipped && wanted.height < available.bottom {
3662 Some(bottom_position)
3663 } else {
3664 None
3665 }
3666 };
3667
3668 // Prefer choosing a direction using max sizes rather than actual size for stability.
3669 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3670 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3671 let aside_position = fit_within(available_within_text, wanted)
3672 // Fallback: fit max size in window.
3673 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3674 // Fallback: fit actual size in window.
3675 .or_else(|| fit_within(available_within_viewport, actual_size));
3676
3677 aside_position.map(|position| (aside, position))
3678 };
3679
3680 // Skip drawing if it doesn't fit anywhere.
3681 if let Some((aside, position)) = positioned_aside {
3682 window.defer_draw(aside, position, 2);
3683 }
3684 }
3685
3686 fn render_context_menu(
3687 &self,
3688 line_height: Pixels,
3689 height: Pixels,
3690 y_flipped: bool,
3691 window: &mut Window,
3692 cx: &mut App,
3693 ) -> Option<AnyElement> {
3694 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3695 self.editor.update(cx, |editor, cx| {
3696 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3697 })
3698 }
3699
3700 fn render_context_menu_aside(
3701 &self,
3702 max_size: Size<Pixels>,
3703 window: &mut Window,
3704 cx: &mut App,
3705 ) -> Option<AnyElement> {
3706 if max_size.width < px(100.) || max_size.height < px(12.) {
3707 None
3708 } else {
3709 self.editor.update(cx, |editor, cx| {
3710 editor.render_context_menu_aside(max_size, window, cx)
3711 })
3712 }
3713 }
3714
3715 fn layout_mouse_context_menu(
3716 &self,
3717 editor_snapshot: &EditorSnapshot,
3718 visible_range: Range<DisplayRow>,
3719 content_origin: gpui::Point<Pixels>,
3720 window: &mut Window,
3721 cx: &mut App,
3722 ) -> Option<AnyElement> {
3723 let position = self.editor.update(cx, |editor, _cx| {
3724 let visible_start_point = editor.display_to_pixel_point(
3725 DisplayPoint::new(visible_range.start, 0),
3726 editor_snapshot,
3727 window,
3728 )?;
3729 let visible_end_point = editor.display_to_pixel_point(
3730 DisplayPoint::new(visible_range.end, 0),
3731 editor_snapshot,
3732 window,
3733 )?;
3734
3735 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3736 let (source_display_point, position) = match mouse_context_menu.position {
3737 MenuPosition::PinnedToScreen(point) => (None, point),
3738 MenuPosition::PinnedToEditor { source, offset } => {
3739 let source_display_point = source.to_display_point(editor_snapshot);
3740 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3741 let position = content_origin + source_point + offset;
3742 (Some(source_display_point), position)
3743 }
3744 };
3745
3746 let source_included = source_display_point.map_or(true, |source_display_point| {
3747 visible_range
3748 .to_inclusive()
3749 .contains(&source_display_point.row())
3750 });
3751 let position_included =
3752 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3753 if !source_included && !position_included {
3754 None
3755 } else {
3756 Some(position)
3757 }
3758 })?;
3759
3760 let text_style = TextStyleRefinement {
3761 line_height: Some(DefiniteLength::Fraction(
3762 BufferLineHeight::Comfortable.value(),
3763 )),
3764 ..Default::default()
3765 };
3766 window.with_text_style(Some(text_style), |window| {
3767 let mut element = self.editor.update(cx, |editor, _| {
3768 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3769 let context_menu = mouse_context_menu.context_menu.clone();
3770
3771 Some(
3772 deferred(
3773 anchored()
3774 .position(position)
3775 .child(context_menu)
3776 .anchor(Corner::TopLeft)
3777 .snap_to_window_with_margin(px(8.)),
3778 )
3779 .with_priority(1)
3780 .into_any(),
3781 )
3782 })?;
3783
3784 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3785 Some(element)
3786 })
3787 }
3788
3789 #[allow(clippy::too_many_arguments)]
3790 fn layout_hover_popovers(
3791 &self,
3792 snapshot: &EditorSnapshot,
3793 hitbox: &Hitbox,
3794 text_hitbox: &Hitbox,
3795 visible_display_row_range: Range<DisplayRow>,
3796 content_origin: gpui::Point<Pixels>,
3797 scroll_pixel_position: gpui::Point<Pixels>,
3798 line_layouts: &[LineWithInvisibles],
3799 line_height: Pixels,
3800 em_width: Pixels,
3801 window: &mut Window,
3802 cx: &mut App,
3803 ) {
3804 struct MeasuredHoverPopover {
3805 element: AnyElement,
3806 size: Size<Pixels>,
3807 horizontal_offset: Pixels,
3808 }
3809
3810 let max_size = size(
3811 (120. * em_width) // Default size
3812 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3813 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3814 (16. * line_height) // Default size
3815 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3816 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3817 );
3818
3819 let hover_popovers = self.editor.update(cx, |editor, cx| {
3820 editor
3821 .hover_state
3822 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3823 });
3824 let Some((position, hover_popovers)) = hover_popovers else {
3825 return;
3826 };
3827
3828 // This is safe because we check on layout whether the required row is available
3829 let hovered_row_layout =
3830 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3831
3832 // Compute Hovered Point
3833 let x =
3834 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3835 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3836 let hovered_point = content_origin + point(x, y);
3837
3838 let mut overall_height = Pixels::ZERO;
3839 let mut measured_hover_popovers = Vec::new();
3840 for mut hover_popover in hover_popovers {
3841 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3842 let horizontal_offset =
3843 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3844
3845 overall_height += HOVER_POPOVER_GAP + size.height;
3846
3847 measured_hover_popovers.push(MeasuredHoverPopover {
3848 element: hover_popover,
3849 size,
3850 horizontal_offset,
3851 });
3852 }
3853 overall_height += HOVER_POPOVER_GAP;
3854
3855 fn draw_occluder(
3856 width: Pixels,
3857 origin: gpui::Point<Pixels>,
3858 window: &mut Window,
3859 cx: &mut App,
3860 ) {
3861 let mut occlusion = div()
3862 .size_full()
3863 .occlude()
3864 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3865 .into_any_element();
3866 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3867 window.defer_draw(occlusion, origin, 2);
3868 }
3869
3870 if hovered_point.y > overall_height {
3871 // There is enough space above. Render popovers above the hovered point
3872 let mut current_y = hovered_point.y;
3873 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3874 let size = popover.size;
3875 let popover_origin = point(
3876 hovered_point.x + popover.horizontal_offset,
3877 current_y - size.height,
3878 );
3879
3880 window.defer_draw(popover.element, popover_origin, 2);
3881 if position != itertools::Position::Last {
3882 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3883 draw_occluder(size.width, origin, window, cx);
3884 }
3885
3886 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3887 }
3888 } else {
3889 // There is not enough space above. Render popovers below the hovered point
3890 let mut current_y = hovered_point.y + line_height;
3891 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3892 let size = popover.size;
3893 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3894
3895 window.defer_draw(popover.element, popover_origin, 2);
3896 if position != itertools::Position::Last {
3897 let origin = point(popover_origin.x, popover_origin.y + size.height);
3898 draw_occluder(size.width, origin, window, cx);
3899 }
3900
3901 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3902 }
3903 }
3904 }
3905
3906 #[allow(clippy::too_many_arguments)]
3907 fn layout_diff_hunk_controls(
3908 &self,
3909 row_range: Range<DisplayRow>,
3910 row_infos: &[RowInfo],
3911 text_hitbox: &Hitbox,
3912 position_map: &PositionMap,
3913 newest_cursor_position: Option<DisplayPoint>,
3914 line_height: Pixels,
3915 scroll_pixel_position: gpui::Point<Pixels>,
3916 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3917 editor: Entity<Editor>,
3918 window: &mut Window,
3919 cx: &mut App,
3920 ) -> Vec<AnyElement> {
3921 let point_for_position = position_map.point_for_position(window.mouse_position());
3922
3923 let mut controls = vec![];
3924
3925 let active_positions = [
3926 Some(point_for_position.previous_valid),
3927 newest_cursor_position,
3928 ];
3929
3930 for (hunk, _) in display_hunks {
3931 if let DisplayDiffHunk::Unfolded {
3932 display_row_range,
3933 multi_buffer_range,
3934 status,
3935 ..
3936 } = &hunk
3937 {
3938 if display_row_range.start < row_range.start
3939 || display_row_range.start >= row_range.end
3940 {
3941 continue;
3942 }
3943 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3944 if row_infos[row_ix].diff_status.is_none() {
3945 continue;
3946 }
3947 if row_infos[row_ix]
3948 .diff_status
3949 .is_some_and(|status| status.is_added())
3950 && !status.is_added()
3951 {
3952 continue;
3953 }
3954 if active_positions
3955 .iter()
3956 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3957 {
3958 let y = display_row_range.start.as_f32() * line_height
3959 + text_hitbox.bounds.top()
3960 - scroll_pixel_position.y;
3961
3962 let mut element = diff_hunk_controls(
3963 display_row_range.start.0,
3964 status,
3965 multi_buffer_range.clone(),
3966 line_height,
3967 &editor,
3968 cx,
3969 );
3970 let size =
3971 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3972
3973 let x = text_hitbox.bounds.right()
3974 - self.style.scrollbar_width
3975 - px(10.)
3976 - size.width;
3977
3978 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3979 element.prepaint(window, cx)
3980 });
3981 controls.push(element);
3982 }
3983 }
3984 }
3985
3986 controls
3987 }
3988
3989 #[allow(clippy::too_many_arguments)]
3990 fn layout_signature_help(
3991 &self,
3992 hitbox: &Hitbox,
3993 content_origin: gpui::Point<Pixels>,
3994 scroll_pixel_position: gpui::Point<Pixels>,
3995 newest_selection_head: Option<DisplayPoint>,
3996 start_row: DisplayRow,
3997 line_layouts: &[LineWithInvisibles],
3998 line_height: Pixels,
3999 em_width: Pixels,
4000 window: &mut Window,
4001 cx: &mut App,
4002 ) {
4003 if !self.editor.focus_handle(cx).is_focused(window) {
4004 return;
4005 }
4006 let Some(newest_selection_head) = newest_selection_head else {
4007 return;
4008 };
4009 let selection_row = newest_selection_head.row();
4010 if selection_row < start_row {
4011 return;
4012 }
4013 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4014 else {
4015 return;
4016 };
4017
4018 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4019 - scroll_pixel_position.x
4020 + content_origin.x;
4021 let start_y =
4022 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4023
4024 let max_size = size(
4025 (120. * em_width) // Default size
4026 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4027 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4028 (16. * line_height) // Default size
4029 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4030 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4031 );
4032
4033 let maybe_element = self.editor.update(cx, |editor, cx| {
4034 if let Some(popover) = editor.signature_help_state.popover_mut() {
4035 let element = popover.render(max_size, cx);
4036 Some(element)
4037 } else {
4038 None
4039 }
4040 });
4041 if let Some(mut element) = maybe_element {
4042 let window_size = window.viewport_size();
4043 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4044 let mut point = point(start_x, start_y - size.height);
4045
4046 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4047 if point.x + size.width >= window_size.width {
4048 point.x = window_size.width - size.width;
4049 }
4050
4051 window.defer_draw(element, point, 1)
4052 }
4053 }
4054
4055 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4056 window.paint_layer(layout.hitbox.bounds, |window| {
4057 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4058 let gutter_bg = cx.theme().colors().editor_gutter_background;
4059 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4060 window.paint_quad(fill(
4061 layout.position_map.text_hitbox.bounds,
4062 self.style.background,
4063 ));
4064
4065 if let EditorMode::Full = layout.mode {
4066 let mut active_rows = layout.active_rows.iter().peekable();
4067 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4068 let mut end_row = start_row.0;
4069 while active_rows
4070 .peek()
4071 .map_or(false, |(active_row, has_selection)| {
4072 active_row.0 == end_row + 1
4073 && *has_selection == contains_non_empty_selection
4074 })
4075 {
4076 active_rows.next().unwrap();
4077 end_row += 1;
4078 }
4079
4080 if !contains_non_empty_selection {
4081 let highlight_h_range =
4082 match layout.position_map.snapshot.current_line_highlight {
4083 CurrentLineHighlight::Gutter => Some(Range {
4084 start: layout.hitbox.left(),
4085 end: layout.gutter_hitbox.right(),
4086 }),
4087 CurrentLineHighlight::Line => Some(Range {
4088 start: layout.position_map.text_hitbox.bounds.left(),
4089 end: layout.position_map.text_hitbox.bounds.right(),
4090 }),
4091 CurrentLineHighlight::All => Some(Range {
4092 start: layout.hitbox.left(),
4093 end: layout.hitbox.right(),
4094 }),
4095 CurrentLineHighlight::None => None,
4096 };
4097 if let Some(range) = highlight_h_range {
4098 let active_line_bg = cx.theme().colors().editor_active_line_background;
4099 let bounds = Bounds {
4100 origin: point(
4101 range.start,
4102 layout.hitbox.origin.y
4103 + (start_row.as_f32() - scroll_top)
4104 * layout.position_map.line_height,
4105 ),
4106 size: size(
4107 range.end - range.start,
4108 layout.position_map.line_height
4109 * (end_row - start_row.0 + 1) as f32,
4110 ),
4111 };
4112 window.paint_quad(fill(bounds, active_line_bg));
4113 }
4114 }
4115 }
4116
4117 let mut paint_highlight =
4118 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4119 let origin = point(
4120 layout.hitbox.origin.x,
4121 layout.hitbox.origin.y
4122 + (highlight_row_start.as_f32() - scroll_top)
4123 * layout.position_map.line_height,
4124 );
4125 let size = size(
4126 layout.hitbox.size.width,
4127 layout.position_map.line_height
4128 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4129 );
4130 window.paint_quad(fill(Bounds { origin, size }, color));
4131 };
4132
4133 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4134 for (&new_row, &new_background) in &layout.highlighted_rows {
4135 match &mut current_paint {
4136 Some((current_background, current_range)) => {
4137 let current_background = *current_background;
4138 let new_range_started = current_background != new_background
4139 || current_range.end.next_row() != new_row;
4140 if new_range_started {
4141 paint_highlight(
4142 current_range.start,
4143 current_range.end,
4144 current_background,
4145 );
4146 current_paint = Some((new_background, new_row..new_row));
4147 continue;
4148 } else {
4149 current_range.end = current_range.end.next_row();
4150 }
4151 }
4152 None => current_paint = Some((new_background, new_row..new_row)),
4153 };
4154 }
4155 if let Some((color, range)) = current_paint {
4156 paint_highlight(range.start, range.end, color);
4157 }
4158
4159 let scroll_left =
4160 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4161
4162 for (wrap_position, active) in layout.wrap_guides.iter() {
4163 let x = (layout.position_map.text_hitbox.origin.x
4164 + *wrap_position
4165 + layout.position_map.em_width / 2.)
4166 - scroll_left;
4167
4168 let show_scrollbars = {
4169 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4170
4171 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4172 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4173 };
4174
4175 if x < layout.position_map.text_hitbox.origin.x
4176 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4177 {
4178 continue;
4179 }
4180
4181 let color = if *active {
4182 cx.theme().colors().editor_active_wrap_guide
4183 } else {
4184 cx.theme().colors().editor_wrap_guide
4185 };
4186 window.paint_quad(fill(
4187 Bounds {
4188 origin: point(x, layout.position_map.text_hitbox.origin.y),
4189 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4190 },
4191 color,
4192 ));
4193 }
4194 }
4195 })
4196 }
4197
4198 fn paint_indent_guides(
4199 &mut self,
4200 layout: &mut EditorLayout,
4201 window: &mut Window,
4202 cx: &mut App,
4203 ) {
4204 let Some(indent_guides) = &layout.indent_guides else {
4205 return;
4206 };
4207
4208 let faded_color = |color: Hsla, alpha: f32| {
4209 let mut faded = color;
4210 faded.a = alpha;
4211 faded
4212 };
4213
4214 for indent_guide in indent_guides {
4215 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4216 let settings = indent_guide.settings;
4217
4218 // TODO fixed for now, expose them through themes later
4219 const INDENT_AWARE_ALPHA: f32 = 0.2;
4220 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4221 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4222 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4223
4224 let line_color = match (settings.coloring, indent_guide.active) {
4225 (IndentGuideColoring::Disabled, _) => None,
4226 (IndentGuideColoring::Fixed, false) => {
4227 Some(cx.theme().colors().editor_indent_guide)
4228 }
4229 (IndentGuideColoring::Fixed, true) => {
4230 Some(cx.theme().colors().editor_indent_guide_active)
4231 }
4232 (IndentGuideColoring::IndentAware, false) => {
4233 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4234 }
4235 (IndentGuideColoring::IndentAware, true) => {
4236 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4237 }
4238 };
4239
4240 let background_color = match (settings.background_coloring, indent_guide.active) {
4241 (IndentGuideBackgroundColoring::Disabled, _) => None,
4242 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4243 indent_accent_colors,
4244 INDENT_AWARE_BACKGROUND_ALPHA,
4245 )),
4246 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4247 indent_accent_colors,
4248 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4249 )),
4250 };
4251
4252 let requested_line_width = if indent_guide.active {
4253 settings.active_line_width
4254 } else {
4255 settings.line_width
4256 }
4257 .clamp(1, 10);
4258 let mut line_indicator_width = 0.;
4259 if let Some(color) = line_color {
4260 window.paint_quad(fill(
4261 Bounds {
4262 origin: indent_guide.origin,
4263 size: size(px(requested_line_width as f32), indent_guide.length),
4264 },
4265 color,
4266 ));
4267 line_indicator_width = requested_line_width as f32;
4268 }
4269
4270 if let Some(color) = background_color {
4271 let width = indent_guide.single_indent_width - px(line_indicator_width);
4272 window.paint_quad(fill(
4273 Bounds {
4274 origin: point(
4275 indent_guide.origin.x + px(line_indicator_width),
4276 indent_guide.origin.y,
4277 ),
4278 size: size(width, indent_guide.length),
4279 },
4280 color,
4281 ));
4282 }
4283 }
4284 }
4285
4286 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4287 let is_singleton = self.editor.read(cx).is_singleton(cx);
4288
4289 let line_height = layout.position_map.line_height;
4290 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4291
4292 for LineNumberLayout {
4293 shaped_line,
4294 hitbox,
4295 display_row,
4296 } in layout.line_numbers.values()
4297 {
4298 let Some(hitbox) = hitbox else {
4299 continue;
4300 };
4301
4302 let is_active = layout.active_rows.contains_key(&display_row);
4303
4304 let color = if is_active {
4305 cx.theme().colors().editor_active_line_number
4306 } else if !is_singleton && hitbox.is_hovered(window) {
4307 cx.theme().colors().editor_hover_line_number
4308 } else {
4309 cx.theme().colors().editor_line_number
4310 };
4311
4312 let Some(line) = self
4313 .shape_line_number(shaped_line.text.clone(), color, window)
4314 .log_err()
4315 else {
4316 continue;
4317 };
4318 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4319 continue;
4320 };
4321 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4322 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4323 if is_singleton {
4324 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4325 } else {
4326 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4327 }
4328 }
4329 }
4330
4331 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4332 if layout.display_hunks.is_empty() {
4333 return;
4334 }
4335
4336 let line_height = layout.position_map.line_height;
4337 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4338 for (hunk, hitbox) in &layout.display_hunks {
4339 let hunk_to_paint = match hunk {
4340 DisplayDiffHunk::Folded { .. } => {
4341 let hunk_bounds = Self::diff_hunk_bounds(
4342 &layout.position_map.snapshot,
4343 line_height,
4344 layout.gutter_hitbox.bounds,
4345 hunk,
4346 );
4347 Some((
4348 hunk_bounds,
4349 cx.theme().colors().version_control_modified,
4350 Corners::all(px(0.)),
4351 DiffHunkSecondaryStatus::None,
4352 ))
4353 }
4354 DisplayDiffHunk::Unfolded {
4355 status,
4356 display_row_range,
4357 ..
4358 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4359 DiffHunkStatusKind::Added => (
4360 hunk_hitbox.bounds,
4361 cx.theme().colors().version_control_added,
4362 Corners::all(px(0.)),
4363 status.secondary,
4364 ),
4365 DiffHunkStatusKind::Modified => (
4366 hunk_hitbox.bounds,
4367 cx.theme().colors().version_control_modified,
4368 Corners::all(px(0.)),
4369 status.secondary,
4370 ),
4371 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4372 hunk_hitbox.bounds,
4373 cx.theme().colors().version_control_deleted,
4374 Corners::all(px(0.)),
4375 status.secondary,
4376 ),
4377 DiffHunkStatusKind::Deleted => (
4378 Bounds::new(
4379 point(
4380 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4381 hunk_hitbox.origin.y,
4382 ),
4383 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4384 ),
4385 cx.theme().colors().version_control_deleted,
4386 Corners::all(1. * line_height),
4387 status.secondary,
4388 ),
4389 }),
4390 };
4391
4392 if let Some((hunk_bounds, background_color, corner_radii, secondary_status)) =
4393 hunk_to_paint
4394 {
4395 let background_color = if secondary_status != DiffHunkSecondaryStatus::None {
4396 background_color.opacity(0.3)
4397 } else {
4398 background_color.opacity(1.0)
4399 };
4400 window.paint_quad(quad(
4401 hunk_bounds,
4402 corner_radii,
4403 background_color,
4404 Edges::default(),
4405 transparent_black(),
4406 ));
4407 }
4408 }
4409 });
4410 }
4411
4412 fn diff_hunk_bounds(
4413 snapshot: &EditorSnapshot,
4414 line_height: Pixels,
4415 gutter_bounds: Bounds<Pixels>,
4416 hunk: &DisplayDiffHunk,
4417 ) -> Bounds<Pixels> {
4418 let scroll_position = snapshot.scroll_position();
4419 let scroll_top = scroll_position.y * line_height;
4420 let gutter_strip_width = (0.275 * line_height).floor();
4421
4422 match hunk {
4423 DisplayDiffHunk::Folded { display_row, .. } => {
4424 let start_y = display_row.as_f32() * line_height - scroll_top;
4425 let end_y = start_y + line_height;
4426 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4427 let highlight_size = size(gutter_strip_width, end_y - start_y);
4428 Bounds::new(highlight_origin, highlight_size)
4429 }
4430 DisplayDiffHunk::Unfolded {
4431 display_row_range,
4432 status,
4433 ..
4434 } => {
4435 if status.is_deleted() && display_row_range.is_empty() {
4436 let row = display_row_range.start;
4437
4438 let offset = line_height / 2.;
4439 let start_y = row.as_f32() * line_height - offset - scroll_top;
4440 let end_y = start_y + line_height;
4441
4442 let width = (0.35 * line_height).floor();
4443 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4444 let highlight_size = size(width, end_y - start_y);
4445 Bounds::new(highlight_origin, highlight_size)
4446 } else {
4447 let start_row = display_row_range.start;
4448 let end_row = display_row_range.end;
4449 // If we're in a multibuffer, row range span might include an
4450 // excerpt header, so if we were to draw the marker straight away,
4451 // the hunk might include the rows of that header.
4452 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4453 // Instead, we simply check whether the range we're dealing with includes
4454 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4455 let end_row_in_current_excerpt = snapshot
4456 .blocks_in_range(start_row..end_row)
4457 .find_map(|(start_row, block)| {
4458 if matches!(block, Block::ExcerptBoundary { .. }) {
4459 Some(start_row)
4460 } else {
4461 None
4462 }
4463 })
4464 .unwrap_or(end_row);
4465
4466 let start_y = start_row.as_f32() * line_height - scroll_top;
4467 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4468
4469 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4470 let highlight_size = size(gutter_strip_width, end_y - start_y);
4471 Bounds::new(highlight_origin, highlight_size)
4472 }
4473 }
4474 }
4475 }
4476
4477 fn paint_gutter_indicators(
4478 &self,
4479 layout: &mut EditorLayout,
4480 window: &mut Window,
4481 cx: &mut App,
4482 ) {
4483 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4484 window.with_element_namespace("crease_toggles", |window| {
4485 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4486 crease_toggle.paint(window, cx);
4487 }
4488 });
4489
4490 for test_indicator in layout.test_indicators.iter_mut() {
4491 test_indicator.paint(window, cx);
4492 }
4493
4494 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4495 indicator.paint(window, cx);
4496 }
4497 });
4498 }
4499
4500 fn paint_gutter_highlights(
4501 &self,
4502 layout: &mut EditorLayout,
4503 window: &mut Window,
4504 cx: &mut App,
4505 ) {
4506 for (_, hunk_hitbox) in &layout.display_hunks {
4507 if let Some(hunk_hitbox) = hunk_hitbox {
4508 if !self
4509 .editor
4510 .read(cx)
4511 .buffer()
4512 .read(cx)
4513 .all_diff_hunks_expanded()
4514 {
4515 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4516 }
4517 }
4518 }
4519
4520 let show_git_gutter = layout
4521 .position_map
4522 .snapshot
4523 .show_git_diff_gutter
4524 .unwrap_or_else(|| {
4525 matches!(
4526 ProjectSettings::get_global(cx).git.git_gutter,
4527 Some(GitGutterSetting::TrackedFiles)
4528 )
4529 });
4530 if show_git_gutter {
4531 Self::paint_diff_hunks(layout, window, cx)
4532 }
4533
4534 let highlight_width = 0.275 * layout.position_map.line_height;
4535 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4536 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4537 for (range, color) in &layout.highlighted_gutter_ranges {
4538 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4539 layout.visible_display_row_range.start - DisplayRow(1)
4540 } else {
4541 range.start.row()
4542 };
4543 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4544 layout.visible_display_row_range.end + DisplayRow(1)
4545 } else {
4546 range.end.row()
4547 };
4548
4549 let start_y = layout.gutter_hitbox.top()
4550 + start_row.0 as f32 * layout.position_map.line_height
4551 - layout.position_map.scroll_pixel_position.y;
4552 let end_y = layout.gutter_hitbox.top()
4553 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4554 - layout.position_map.scroll_pixel_position.y;
4555 let bounds = Bounds::from_corners(
4556 point(layout.gutter_hitbox.left(), start_y),
4557 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4558 );
4559 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4560 }
4561 });
4562 }
4563
4564 fn paint_blamed_display_rows(
4565 &self,
4566 layout: &mut EditorLayout,
4567 window: &mut Window,
4568 cx: &mut App,
4569 ) {
4570 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4571 return;
4572 };
4573
4574 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4575 for mut blame_element in blamed_display_rows.into_iter() {
4576 blame_element.paint(window, cx);
4577 }
4578 })
4579 }
4580
4581 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4582 window.with_content_mask(
4583 Some(ContentMask {
4584 bounds: layout.position_map.text_hitbox.bounds,
4585 }),
4586 |window| {
4587 let cursor_style = if self
4588 .editor
4589 .read(cx)
4590 .hovered_link_state
4591 .as_ref()
4592 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4593 {
4594 CursorStyle::PointingHand
4595 } else {
4596 CursorStyle::IBeam
4597 };
4598 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4599
4600 let invisible_display_ranges = self.paint_highlights(layout, window);
4601 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4602 self.paint_redactions(layout, window);
4603 self.paint_cursors(layout, window, cx);
4604 self.paint_inline_diagnostics(layout, window, cx);
4605 self.paint_inline_blame(layout, window, cx);
4606 self.paint_diff_hunk_controls(layout, window, cx);
4607 window.with_element_namespace("crease_trailers", |window| {
4608 for trailer in layout.crease_trailers.iter_mut().flatten() {
4609 trailer.element.paint(window, cx);
4610 }
4611 });
4612 },
4613 )
4614 }
4615
4616 fn paint_highlights(
4617 &mut self,
4618 layout: &mut EditorLayout,
4619 window: &mut Window,
4620 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4621 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4622 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4623 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4624 for (range, color) in &layout.highlighted_ranges {
4625 self.paint_highlighted_range(
4626 range.clone(),
4627 *color,
4628 Pixels::ZERO,
4629 line_end_overshoot,
4630 layout,
4631 window,
4632 );
4633 }
4634
4635 let corner_radius = 0.15 * layout.position_map.line_height;
4636
4637 for (player_color, selections) in &layout.selections {
4638 for selection in selections.iter() {
4639 self.paint_highlighted_range(
4640 selection.range.clone(),
4641 player_color.selection,
4642 corner_radius,
4643 corner_radius * 2.,
4644 layout,
4645 window,
4646 );
4647
4648 if selection.is_local && !selection.range.is_empty() {
4649 invisible_display_ranges.push(selection.range.clone());
4650 }
4651 }
4652 }
4653 invisible_display_ranges
4654 })
4655 }
4656
4657 fn paint_lines(
4658 &mut self,
4659 invisible_display_ranges: &[Range<DisplayPoint>],
4660 layout: &mut EditorLayout,
4661 window: &mut Window,
4662 cx: &mut App,
4663 ) {
4664 let whitespace_setting = self
4665 .editor
4666 .read(cx)
4667 .buffer
4668 .read(cx)
4669 .settings_at(0, cx)
4670 .show_whitespaces;
4671
4672 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4673 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4674 line_with_invisibles.draw(
4675 layout,
4676 row,
4677 layout.content_origin,
4678 whitespace_setting,
4679 invisible_display_ranges,
4680 window,
4681 cx,
4682 )
4683 }
4684
4685 for line_element in &mut layout.line_elements {
4686 line_element.paint(window, cx);
4687 }
4688 }
4689
4690 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4691 if layout.redacted_ranges.is_empty() {
4692 return;
4693 }
4694
4695 let line_end_overshoot = layout.line_end_overshoot();
4696
4697 // A softer than perfect black
4698 let redaction_color = gpui::rgb(0x0e1111);
4699
4700 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4701 for range in layout.redacted_ranges.iter() {
4702 self.paint_highlighted_range(
4703 range.clone(),
4704 redaction_color.into(),
4705 Pixels::ZERO,
4706 line_end_overshoot,
4707 layout,
4708 window,
4709 );
4710 }
4711 });
4712 }
4713
4714 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4715 for cursor in &mut layout.visible_cursors {
4716 cursor.paint(layout.content_origin, window, cx);
4717 }
4718 }
4719
4720 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4721 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4722
4723 if let Some(scrollbar_layout) = scrollbar_x {
4724 let hitbox = scrollbar_layout.hitbox.clone();
4725 let text_unit_size = scrollbar_layout.text_unit_size;
4726 let visible_range = scrollbar_layout.visible_range.clone();
4727 let thumb_bounds = scrollbar_layout.thumb_bounds();
4728
4729 if scrollbar_layout.visible {
4730 window.paint_layer(hitbox.bounds, |window| {
4731 window.paint_quad(quad(
4732 hitbox.bounds,
4733 Corners::default(),
4734 cx.theme().colors().scrollbar_track_background,
4735 Edges {
4736 top: Pixels::ZERO,
4737 right: Pixels::ZERO,
4738 bottom: Pixels::ZERO,
4739 left: Pixels::ZERO,
4740 },
4741 cx.theme().colors().scrollbar_track_border,
4742 ));
4743
4744 window.paint_quad(quad(
4745 thumb_bounds,
4746 Corners::default(),
4747 cx.theme().colors().scrollbar_thumb_background,
4748 Edges {
4749 top: Pixels::ZERO,
4750 right: Pixels::ZERO,
4751 bottom: Pixels::ZERO,
4752 left: ScrollbarLayout::BORDER_WIDTH,
4753 },
4754 cx.theme().colors().scrollbar_thumb_border,
4755 ));
4756 })
4757 }
4758
4759 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4760
4761 window.on_mouse_event({
4762 let editor = self.editor.clone();
4763
4764 // there may be a way to avoid this clone
4765 let hitbox = hitbox.clone();
4766
4767 let mut mouse_position = window.mouse_position();
4768 move |event: &MouseMoveEvent, phase, window, cx| {
4769 if phase == DispatchPhase::Capture {
4770 return;
4771 }
4772
4773 editor.update(cx, |editor, cx| {
4774 if event.pressed_button == Some(MouseButton::Left)
4775 && editor
4776 .scroll_manager
4777 .is_dragging_scrollbar(Axis::Horizontal)
4778 {
4779 let x = mouse_position.x;
4780 let new_x = event.position.x;
4781 if (hitbox.left()..hitbox.right()).contains(&x) {
4782 let mut position = editor.scroll_position(cx);
4783
4784 position.x += (new_x - x) / text_unit_size;
4785 if position.x < 0.0 {
4786 position.x = 0.0;
4787 }
4788 editor.set_scroll_position(position, window, cx);
4789 }
4790
4791 cx.stop_propagation();
4792 } else {
4793 editor.scroll_manager.set_is_dragging_scrollbar(
4794 Axis::Horizontal,
4795 false,
4796 cx,
4797 );
4798
4799 if hitbox.is_hovered(window) {
4800 editor.scroll_manager.show_scrollbar(window, cx);
4801 }
4802 }
4803 mouse_position = event.position;
4804 })
4805 }
4806 });
4807
4808 if self
4809 .editor
4810 .read(cx)
4811 .scroll_manager
4812 .is_dragging_scrollbar(Axis::Horizontal)
4813 {
4814 window.on_mouse_event({
4815 let editor = self.editor.clone();
4816 move |_: &MouseUpEvent, phase, _, cx| {
4817 if phase == DispatchPhase::Capture {
4818 return;
4819 }
4820
4821 editor.update(cx, |editor, cx| {
4822 editor.scroll_manager.set_is_dragging_scrollbar(
4823 Axis::Horizontal,
4824 false,
4825 cx,
4826 );
4827 cx.stop_propagation();
4828 });
4829 }
4830 });
4831 } else {
4832 window.on_mouse_event({
4833 let editor = self.editor.clone();
4834
4835 move |event: &MouseDownEvent, phase, window, cx| {
4836 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4837 return;
4838 }
4839
4840 editor.update(cx, |editor, cx| {
4841 editor.scroll_manager.set_is_dragging_scrollbar(
4842 Axis::Horizontal,
4843 true,
4844 cx,
4845 );
4846
4847 let x = event.position.x;
4848
4849 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4850 let center_row =
4851 ((x - hitbox.left()) / text_unit_size).round() as u32;
4852 let top_row = center_row.saturating_sub(
4853 (visible_range.end - visible_range.start) as u32 / 2,
4854 );
4855
4856 let mut position = editor.scroll_position(cx);
4857 position.x = top_row as f32;
4858
4859 editor.set_scroll_position(position, window, cx);
4860 } else {
4861 editor.scroll_manager.show_scrollbar(window, cx);
4862 }
4863
4864 cx.stop_propagation();
4865 });
4866 }
4867 });
4868 }
4869 }
4870
4871 if let Some(scrollbar_layout) = scrollbar_y {
4872 let hitbox = scrollbar_layout.hitbox.clone();
4873 let text_unit_size = scrollbar_layout.text_unit_size;
4874 let visible_range = scrollbar_layout.visible_range.clone();
4875 let thumb_bounds = scrollbar_layout.thumb_bounds();
4876
4877 if scrollbar_layout.visible {
4878 window.paint_layer(hitbox.bounds, |window| {
4879 window.paint_quad(quad(
4880 hitbox.bounds,
4881 Corners::default(),
4882 cx.theme().colors().scrollbar_track_background,
4883 Edges {
4884 top: Pixels::ZERO,
4885 right: Pixels::ZERO,
4886 bottom: Pixels::ZERO,
4887 left: ScrollbarLayout::BORDER_WIDTH,
4888 },
4889 cx.theme().colors().scrollbar_track_border,
4890 ));
4891
4892 let fast_markers =
4893 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4894 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4895 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4896
4897 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4898 for marker in markers.iter().chain(&fast_markers) {
4899 let mut marker = marker.clone();
4900 marker.bounds.origin += hitbox.origin;
4901 window.paint_quad(marker);
4902 }
4903
4904 window.paint_quad(quad(
4905 thumb_bounds,
4906 Corners::default(),
4907 cx.theme().colors().scrollbar_thumb_background,
4908 Edges {
4909 top: Pixels::ZERO,
4910 right: Pixels::ZERO,
4911 bottom: Pixels::ZERO,
4912 left: ScrollbarLayout::BORDER_WIDTH,
4913 },
4914 cx.theme().colors().scrollbar_thumb_border,
4915 ));
4916 });
4917 }
4918
4919 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4920
4921 window.on_mouse_event({
4922 let editor = self.editor.clone();
4923
4924 let hitbox = hitbox.clone();
4925
4926 let mut mouse_position = window.mouse_position();
4927 move |event: &MouseMoveEvent, phase, window, cx| {
4928 if phase == DispatchPhase::Capture {
4929 return;
4930 }
4931
4932 editor.update(cx, |editor, cx| {
4933 if event.pressed_button == Some(MouseButton::Left)
4934 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4935 {
4936 let y = mouse_position.y;
4937 let new_y = event.position.y;
4938 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4939 let mut position = editor.scroll_position(cx);
4940 position.y += (new_y - y) / text_unit_size;
4941 if position.y < 0.0 {
4942 position.y = 0.0;
4943 }
4944 editor.set_scroll_position(position, window, cx);
4945 }
4946 } else {
4947 editor.scroll_manager.set_is_dragging_scrollbar(
4948 Axis::Vertical,
4949 false,
4950 cx,
4951 );
4952
4953 if hitbox.is_hovered(window) {
4954 editor.scroll_manager.show_scrollbar(window, cx);
4955 }
4956 }
4957 mouse_position = event.position;
4958 })
4959 }
4960 });
4961
4962 if self
4963 .editor
4964 .read(cx)
4965 .scroll_manager
4966 .is_dragging_scrollbar(Axis::Vertical)
4967 {
4968 window.on_mouse_event({
4969 let editor = self.editor.clone();
4970 move |_: &MouseUpEvent, phase, _, cx| {
4971 if phase == DispatchPhase::Capture {
4972 return;
4973 }
4974
4975 editor.update(cx, |editor, cx| {
4976 editor.scroll_manager.set_is_dragging_scrollbar(
4977 Axis::Vertical,
4978 false,
4979 cx,
4980 );
4981 cx.stop_propagation();
4982 });
4983 }
4984 });
4985 } else {
4986 window.on_mouse_event({
4987 let editor = self.editor.clone();
4988
4989 move |event: &MouseDownEvent, phase, window, cx| {
4990 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4991 return;
4992 }
4993
4994 editor.update(cx, |editor, cx| {
4995 editor.scroll_manager.set_is_dragging_scrollbar(
4996 Axis::Vertical,
4997 true,
4998 cx,
4999 );
5000
5001 let y = event.position.y;
5002 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5003 let center_row =
5004 ((y - hitbox.top()) / text_unit_size).round() as u32;
5005 let top_row = center_row.saturating_sub(
5006 (visible_range.end - visible_range.start) as u32 / 2,
5007 );
5008 let mut position = editor.scroll_position(cx);
5009 position.y = top_row as f32;
5010 editor.set_scroll_position(position, window, cx);
5011 } else {
5012 editor.scroll_manager.show_scrollbar(window, cx);
5013 }
5014
5015 cx.stop_propagation();
5016 });
5017 }
5018 });
5019 }
5020 }
5021 }
5022
5023 fn collect_fast_scrollbar_markers(
5024 &self,
5025 layout: &EditorLayout,
5026 scrollbar_layout: &ScrollbarLayout,
5027 cx: &mut App,
5028 ) -> Vec<PaintQuad> {
5029 const LIMIT: usize = 100;
5030 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5031 return vec![];
5032 }
5033 let cursor_ranges = layout
5034 .cursors
5035 .iter()
5036 .map(|(point, color)| ColoredRange {
5037 start: point.row(),
5038 end: point.row(),
5039 color: *color,
5040 })
5041 .collect_vec();
5042 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5043 }
5044
5045 fn refresh_slow_scrollbar_markers(
5046 &self,
5047 layout: &EditorLayout,
5048 scrollbar_layout: &ScrollbarLayout,
5049 window: &mut Window,
5050 cx: &mut App,
5051 ) {
5052 self.editor.update(cx, |editor, cx| {
5053 if !editor.is_singleton(cx)
5054 || !editor
5055 .scrollbar_marker_state
5056 .should_refresh(scrollbar_layout.hitbox.size)
5057 {
5058 return;
5059 }
5060
5061 let scrollbar_layout = scrollbar_layout.clone();
5062 let background_highlights = editor.background_highlights.clone();
5063 let snapshot = layout.position_map.snapshot.clone();
5064 let theme = cx.theme().clone();
5065 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5066
5067 editor.scrollbar_marker_state.dirty = false;
5068 editor.scrollbar_marker_state.pending_refresh =
5069 Some(cx.spawn_in(window, |editor, mut cx| async move {
5070 let scrollbar_size = scrollbar_layout.hitbox.size;
5071 let scrollbar_markers = cx
5072 .background_spawn(async move {
5073 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5074 let mut marker_quads = Vec::new();
5075 if scrollbar_settings.git_diff {
5076 let marker_row_ranges =
5077 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5078 let start_display_row =
5079 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5080 .to_display_point(&snapshot.display_snapshot)
5081 .row();
5082 let mut end_display_row =
5083 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5084 .to_display_point(&snapshot.display_snapshot)
5085 .row();
5086 if end_display_row != start_display_row {
5087 end_display_row.0 -= 1;
5088 }
5089 let color = match &hunk.status().kind {
5090 DiffHunkStatusKind::Added => theme.status().created,
5091 DiffHunkStatusKind::Modified => theme.status().modified,
5092 DiffHunkStatusKind::Deleted => theme.status().deleted,
5093 };
5094 ColoredRange {
5095 start: start_display_row,
5096 end: end_display_row,
5097 color,
5098 }
5099 });
5100
5101 marker_quads.extend(
5102 scrollbar_layout
5103 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5104 );
5105 }
5106
5107 for (background_highlight_id, (_, background_ranges)) in
5108 background_highlights.iter()
5109 {
5110 let is_search_highlights = *background_highlight_id
5111 == TypeId::of::<BufferSearchHighlights>();
5112 let is_text_highlights = *background_highlight_id
5113 == TypeId::of::<SelectedTextHighlight>();
5114 let is_symbol_occurrences = *background_highlight_id
5115 == TypeId::of::<DocumentHighlightRead>()
5116 || *background_highlight_id
5117 == TypeId::of::<DocumentHighlightWrite>();
5118 if (is_search_highlights && scrollbar_settings.search_results)
5119 || (is_text_highlights && scrollbar_settings.selected_text)
5120 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5121 {
5122 let mut color = theme.status().info;
5123 if is_symbol_occurrences {
5124 color.fade_out(0.5);
5125 }
5126 let marker_row_ranges = background_ranges.iter().map(|range| {
5127 let display_start = range
5128 .start
5129 .to_display_point(&snapshot.display_snapshot);
5130 let display_end =
5131 range.end.to_display_point(&snapshot.display_snapshot);
5132 ColoredRange {
5133 start: display_start.row(),
5134 end: display_end.row(),
5135 color,
5136 }
5137 });
5138 marker_quads.extend(
5139 scrollbar_layout
5140 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5141 );
5142 }
5143 }
5144
5145 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5146 let diagnostics = snapshot
5147 .buffer_snapshot
5148 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5149 // Don't show diagnostics the user doesn't care about
5150 .filter(|diagnostic| {
5151 match (
5152 scrollbar_settings.diagnostics,
5153 diagnostic.diagnostic.severity,
5154 ) {
5155 (ScrollbarDiagnostics::All, _) => true,
5156 (
5157 ScrollbarDiagnostics::Error,
5158 DiagnosticSeverity::ERROR,
5159 ) => true,
5160 (
5161 ScrollbarDiagnostics::Warning,
5162 DiagnosticSeverity::ERROR
5163 | DiagnosticSeverity::WARNING,
5164 ) => true,
5165 (
5166 ScrollbarDiagnostics::Information,
5167 DiagnosticSeverity::ERROR
5168 | DiagnosticSeverity::WARNING
5169 | DiagnosticSeverity::INFORMATION,
5170 ) => true,
5171 (_, _) => false,
5172 }
5173 })
5174 // We want to sort by severity, in order to paint the most severe diagnostics last.
5175 .sorted_by_key(|diagnostic| {
5176 std::cmp::Reverse(diagnostic.diagnostic.severity)
5177 });
5178
5179 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5180 let start_display = diagnostic
5181 .range
5182 .start
5183 .to_display_point(&snapshot.display_snapshot);
5184 let end_display = diagnostic
5185 .range
5186 .end
5187 .to_display_point(&snapshot.display_snapshot);
5188 let color = match diagnostic.diagnostic.severity {
5189 DiagnosticSeverity::ERROR => theme.status().error,
5190 DiagnosticSeverity::WARNING => theme.status().warning,
5191 DiagnosticSeverity::INFORMATION => theme.status().info,
5192 _ => theme.status().hint,
5193 };
5194 ColoredRange {
5195 start: start_display.row(),
5196 end: end_display.row(),
5197 color,
5198 }
5199 });
5200 marker_quads.extend(
5201 scrollbar_layout
5202 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5203 );
5204 }
5205
5206 Arc::from(marker_quads)
5207 })
5208 .await;
5209
5210 editor.update(&mut cx, |editor, cx| {
5211 editor.scrollbar_marker_state.markers = scrollbar_markers;
5212 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5213 editor.scrollbar_marker_state.pending_refresh = None;
5214 cx.notify();
5215 })?;
5216
5217 Ok(())
5218 }));
5219 });
5220 }
5221
5222 #[allow(clippy::too_many_arguments)]
5223 fn paint_highlighted_range(
5224 &self,
5225 range: Range<DisplayPoint>,
5226 color: Hsla,
5227 corner_radius: Pixels,
5228 line_end_overshoot: Pixels,
5229 layout: &EditorLayout,
5230 window: &mut Window,
5231 ) {
5232 let start_row = layout.visible_display_row_range.start;
5233 let end_row = layout.visible_display_row_range.end;
5234 if range.start != range.end {
5235 let row_range = if range.end.column() == 0 {
5236 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5237 } else {
5238 cmp::max(range.start.row(), start_row)
5239 ..cmp::min(range.end.row().next_row(), end_row)
5240 };
5241
5242 let highlighted_range = HighlightedRange {
5243 color,
5244 line_height: layout.position_map.line_height,
5245 corner_radius,
5246 start_y: layout.content_origin.y
5247 + row_range.start.as_f32() * layout.position_map.line_height
5248 - layout.position_map.scroll_pixel_position.y,
5249 lines: row_range
5250 .iter_rows()
5251 .map(|row| {
5252 let line_layout =
5253 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5254 HighlightedRangeLine {
5255 start_x: if row == range.start.row() {
5256 layout.content_origin.x
5257 + line_layout.x_for_index(range.start.column() as usize)
5258 - layout.position_map.scroll_pixel_position.x
5259 } else {
5260 layout.content_origin.x
5261 - layout.position_map.scroll_pixel_position.x
5262 },
5263 end_x: if row == range.end.row() {
5264 layout.content_origin.x
5265 + line_layout.x_for_index(range.end.column() as usize)
5266 - layout.position_map.scroll_pixel_position.x
5267 } else {
5268 layout.content_origin.x + line_layout.width + line_end_overshoot
5269 - layout.position_map.scroll_pixel_position.x
5270 },
5271 }
5272 })
5273 .collect(),
5274 };
5275
5276 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5277 }
5278 }
5279
5280 fn paint_inline_diagnostics(
5281 &mut self,
5282 layout: &mut EditorLayout,
5283 window: &mut Window,
5284 cx: &mut App,
5285 ) {
5286 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5287 inline_diagnostic.1.paint(window, cx);
5288 }
5289 }
5290
5291 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5292 if let Some(mut inline_blame) = layout.inline_blame.take() {
5293 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5294 inline_blame.paint(window, cx);
5295 })
5296 }
5297 }
5298
5299 fn paint_diff_hunk_controls(
5300 &mut self,
5301 layout: &mut EditorLayout,
5302 window: &mut Window,
5303 cx: &mut App,
5304 ) {
5305 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5306 diff_hunk_control.paint(window, cx);
5307 }
5308 }
5309
5310 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5311 for mut block in layout.blocks.drain(..) {
5312 block.element.paint(window, cx);
5313 }
5314 }
5315
5316 fn paint_inline_completion_popover(
5317 &mut self,
5318 layout: &mut EditorLayout,
5319 window: &mut Window,
5320 cx: &mut App,
5321 ) {
5322 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5323 inline_completion_popover.paint(window, cx);
5324 }
5325 }
5326
5327 fn paint_mouse_context_menu(
5328 &mut self,
5329 layout: &mut EditorLayout,
5330 window: &mut Window,
5331 cx: &mut App,
5332 ) {
5333 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5334 mouse_context_menu.paint(window, cx);
5335 }
5336 }
5337
5338 fn paint_scroll_wheel_listener(
5339 &mut self,
5340 layout: &EditorLayout,
5341 window: &mut Window,
5342 cx: &mut App,
5343 ) {
5344 window.on_mouse_event({
5345 let position_map = layout.position_map.clone();
5346 let editor = self.editor.clone();
5347 let hitbox = layout.hitbox.clone();
5348 let mut delta = ScrollDelta::default();
5349
5350 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5351 // accidentally turn off their scrolling.
5352 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5353
5354 move |event: &ScrollWheelEvent, phase, window, cx| {
5355 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5356 delta = delta.coalesce(event.delta);
5357 editor.update(cx, |editor, cx| {
5358 let position_map: &PositionMap = &position_map;
5359
5360 let line_height = position_map.line_height;
5361 let max_glyph_width = position_map.em_width;
5362 let (delta, axis) = match delta {
5363 gpui::ScrollDelta::Pixels(mut pixels) => {
5364 //Trackpad
5365 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5366 (pixels, axis)
5367 }
5368
5369 gpui::ScrollDelta::Lines(lines) => {
5370 //Not trackpad
5371 let pixels =
5372 point(lines.x * max_glyph_width, lines.y * line_height);
5373 (pixels, None)
5374 }
5375 };
5376
5377 let current_scroll_position = position_map.snapshot.scroll_position();
5378 let x = (current_scroll_position.x * max_glyph_width
5379 - (delta.x * scroll_sensitivity))
5380 / max_glyph_width;
5381 let y = (current_scroll_position.y * line_height
5382 - (delta.y * scroll_sensitivity))
5383 / line_height;
5384 let mut scroll_position =
5385 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5386 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5387 if forbid_vertical_scroll {
5388 scroll_position.y = current_scroll_position.y;
5389 }
5390
5391 if scroll_position != current_scroll_position {
5392 editor.scroll(scroll_position, axis, window, cx);
5393 cx.stop_propagation();
5394 } else if y < 0. {
5395 // Due to clamping, we may fail to detect cases of overscroll to the top;
5396 // We want the scroll manager to get an update in such cases and detect the change of direction
5397 // on the next frame.
5398 cx.notify();
5399 }
5400 });
5401 }
5402 }
5403 });
5404 }
5405
5406 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5407 self.paint_scroll_wheel_listener(layout, window, cx);
5408
5409 window.on_mouse_event({
5410 let position_map = layout.position_map.clone();
5411 let editor = self.editor.clone();
5412 let diff_hunk_range =
5413 layout
5414 .display_hunks
5415 .iter()
5416 .find_map(|(hunk, hunk_hitbox)| match hunk {
5417 DisplayDiffHunk::Folded { .. } => None,
5418 DisplayDiffHunk::Unfolded {
5419 multi_buffer_range, ..
5420 } => {
5421 if hunk_hitbox
5422 .as_ref()
5423 .map(|hitbox| hitbox.is_hovered(window))
5424 .unwrap_or(false)
5425 {
5426 Some(multi_buffer_range.clone())
5427 } else {
5428 None
5429 }
5430 }
5431 });
5432 let line_numbers = layout.line_numbers.clone();
5433
5434 move |event: &MouseDownEvent, phase, window, cx| {
5435 if phase == DispatchPhase::Bubble {
5436 match event.button {
5437 MouseButton::Left => editor.update(cx, |editor, cx| {
5438 let pending_mouse_down = editor
5439 .pending_mouse_down
5440 .get_or_insert_with(Default::default)
5441 .clone();
5442
5443 *pending_mouse_down.borrow_mut() = Some(event.clone());
5444
5445 Self::mouse_left_down(
5446 editor,
5447 event,
5448 diff_hunk_range.clone(),
5449 &position_map,
5450 line_numbers.as_ref(),
5451 window,
5452 cx,
5453 );
5454 }),
5455 MouseButton::Right => editor.update(cx, |editor, cx| {
5456 Self::mouse_right_down(editor, event, &position_map, window, cx);
5457 }),
5458 MouseButton::Middle => editor.update(cx, |editor, cx| {
5459 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5460 }),
5461 _ => {}
5462 };
5463 }
5464 }
5465 });
5466
5467 window.on_mouse_event({
5468 let editor = self.editor.clone();
5469 let position_map = layout.position_map.clone();
5470
5471 move |event: &MouseUpEvent, phase, window, cx| {
5472 if phase == DispatchPhase::Bubble {
5473 editor.update(cx, |editor, cx| {
5474 Self::mouse_up(editor, event, &position_map, window, cx)
5475 });
5476 }
5477 }
5478 });
5479
5480 window.on_mouse_event({
5481 let editor = self.editor.clone();
5482 let position_map = layout.position_map.clone();
5483 let mut captured_mouse_down = None;
5484
5485 move |event: &MouseUpEvent, phase, window, cx| match phase {
5486 // Clear the pending mouse down during the capture phase,
5487 // so that it happens even if another event handler stops
5488 // propagation.
5489 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5490 let pending_mouse_down = editor
5491 .pending_mouse_down
5492 .get_or_insert_with(Default::default)
5493 .clone();
5494
5495 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5496 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5497 captured_mouse_down = pending_mouse_down.take();
5498 window.refresh();
5499 }
5500 }),
5501 // Fire click handlers during the bubble phase.
5502 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5503 if let Some(mouse_down) = captured_mouse_down.take() {
5504 let event = ClickEvent {
5505 down: mouse_down,
5506 up: event.clone(),
5507 };
5508 Self::click(editor, &event, &position_map, window, cx);
5509 }
5510 }),
5511 }
5512 });
5513
5514 window.on_mouse_event({
5515 let position_map = layout.position_map.clone();
5516 let editor = self.editor.clone();
5517
5518 move |event: &MouseMoveEvent, phase, window, cx| {
5519 if phase == DispatchPhase::Bubble {
5520 editor.update(cx, |editor, cx| {
5521 if editor.hover_state.focused(window, cx) {
5522 return;
5523 }
5524 if event.pressed_button == Some(MouseButton::Left)
5525 || event.pressed_button == Some(MouseButton::Middle)
5526 {
5527 Self::mouse_dragged(editor, event, &position_map, window, cx)
5528 }
5529
5530 Self::mouse_moved(editor, event, &position_map, window, cx)
5531 });
5532 }
5533 }
5534 });
5535 }
5536
5537 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5538 bounds.top_right().x - self.style.scrollbar_width
5539 }
5540
5541 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5542 let style = &self.style;
5543 let font_size = style.text.font_size.to_pixels(window.rem_size());
5544 let layout = window
5545 .text_system()
5546 .shape_line(
5547 SharedString::from(" ".repeat(column)),
5548 font_size,
5549 &[TextRun {
5550 len: column,
5551 font: style.text.font(),
5552 color: Hsla::default(),
5553 background_color: None,
5554 underline: None,
5555 strikethrough: None,
5556 }],
5557 )
5558 .unwrap();
5559
5560 layout.width
5561 }
5562
5563 fn max_line_number_width(
5564 &self,
5565 snapshot: &EditorSnapshot,
5566 window: &mut Window,
5567 cx: &mut App,
5568 ) -> Pixels {
5569 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5570 self.column_pixels(digit_count, window, cx)
5571 }
5572
5573 fn shape_line_number(
5574 &self,
5575 text: SharedString,
5576 color: Hsla,
5577 window: &mut Window,
5578 ) -> anyhow::Result<ShapedLine> {
5579 let run = TextRun {
5580 len: text.len(),
5581 font: self.style.text.font(),
5582 color,
5583 background_color: None,
5584 underline: None,
5585 strikethrough: None,
5586 };
5587 window.text_system().shape_line(
5588 text,
5589 self.style.text.font_size.to_pixels(window.rem_size()),
5590 &[run],
5591 )
5592 }
5593}
5594
5595fn header_jump_data(
5596 snapshot: &EditorSnapshot,
5597 block_row_start: DisplayRow,
5598 height: u32,
5599 for_excerpt: &ExcerptInfo,
5600) -> JumpData {
5601 let range = &for_excerpt.range;
5602 let buffer = &for_excerpt.buffer;
5603 let jump_anchor = range
5604 .primary
5605 .as_ref()
5606 .map_or(range.context.start, |primary| primary.start);
5607
5608 let excerpt_start = range.context.start;
5609 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5610 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5611 0
5612 } else {
5613 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5614 jump_position.row.saturating_sub(excerpt_start_point.row)
5615 };
5616
5617 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5618 .saturating_sub(
5619 snapshot
5620 .scroll_anchor
5621 .scroll_position(&snapshot.display_snapshot)
5622 .y as u32,
5623 );
5624
5625 JumpData::MultiBufferPoint {
5626 excerpt_id: for_excerpt.id,
5627 anchor: jump_anchor,
5628 position: jump_position,
5629 line_offset_from_top,
5630 }
5631}
5632
5633pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5634
5635impl AcceptEditPredictionBinding {
5636 pub fn keystroke(&self) -> Option<&Keystroke> {
5637 if let Some(binding) = self.0.as_ref() {
5638 match &binding.keystrokes() {
5639 [keystroke] => Some(keystroke),
5640 _ => None,
5641 }
5642 } else {
5643 None
5644 }
5645 }
5646}
5647
5648#[allow(clippy::too_many_arguments)]
5649fn prepaint_gutter_button(
5650 button: IconButton,
5651 row: DisplayRow,
5652 line_height: Pixels,
5653 gutter_dimensions: &GutterDimensions,
5654 scroll_pixel_position: gpui::Point<Pixels>,
5655 gutter_hitbox: &Hitbox,
5656 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5657 window: &mut Window,
5658 cx: &mut App,
5659) -> AnyElement {
5660 let mut button = button.into_any_element();
5661 let available_space = size(
5662 AvailableSpace::MinContent,
5663 AvailableSpace::Definite(line_height),
5664 );
5665 let indicator_size = button.layout_as_root(available_space, window, cx);
5666
5667 let blame_width = gutter_dimensions.git_blame_entries_width;
5668 let gutter_width = rows_with_hunk_bounds
5669 .get(&row)
5670 .map(|bounds| bounds.size.width);
5671 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5672
5673 let mut x = left_offset;
5674 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5675 - indicator_size.width
5676 - left_offset;
5677 x += available_width / 2.;
5678
5679 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5680 y += (line_height - indicator_size.height) / 2.;
5681
5682 button.prepaint_as_root(
5683 gutter_hitbox.origin + point(x, y),
5684 available_space,
5685 window,
5686 cx,
5687 );
5688 button
5689}
5690
5691fn render_inline_blame_entry(
5692 editor: Entity<Editor>,
5693 blame: &gpui::Entity<GitBlame>,
5694 blame_entry: BlameEntry,
5695 style: &EditorStyle,
5696 cx: &mut App,
5697) -> AnyElement {
5698 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5699
5700 let author = blame_entry.author.as_deref().unwrap_or_default();
5701 let summary_enabled = ProjectSettings::get_global(cx)
5702 .git
5703 .show_inline_commit_summary();
5704
5705 let text = match blame_entry.summary.as_ref() {
5706 Some(summary) if summary_enabled => {
5707 format!("{}, {} - {}", author, relative_timestamp, summary)
5708 }
5709 _ => format!("{}, {}", author, relative_timestamp),
5710 };
5711 let blame = blame.clone();
5712 let blame_entry = blame_entry.clone();
5713
5714 h_flex()
5715 .id("inline-blame")
5716 .w_full()
5717 .font_family(style.text.font().family)
5718 .text_color(cx.theme().status().hint)
5719 .line_height(style.text.line_height)
5720 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5721 .child(text)
5722 .gap_2()
5723 .hoverable_tooltip(move |window, cx| {
5724 let details = blame.read(cx).details_for_entry(&blame_entry);
5725 let tooltip =
5726 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5727 editor.update(cx, |editor, _| {
5728 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5729 });
5730 tooltip.into()
5731 })
5732 .into_any()
5733}
5734
5735fn render_blame_entry(
5736 ix: usize,
5737 blame: &gpui::Entity<GitBlame>,
5738 blame_entry: BlameEntry,
5739 style: &EditorStyle,
5740 last_used_color: &mut Option<(PlayerColor, Oid)>,
5741 editor: Entity<Editor>,
5742 cx: &mut App,
5743) -> AnyElement {
5744 let mut sha_color = cx
5745 .theme()
5746 .players()
5747 .color_for_participant(blame_entry.sha.into());
5748 // If the last color we used is the same as the one we get for this line, but
5749 // the commit SHAs are different, then we try again to get a different color.
5750 match *last_used_color {
5751 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5752 let index: u32 = blame_entry.sha.into();
5753 sha_color = cx.theme().players().color_for_participant(index + 1);
5754 }
5755 _ => {}
5756 };
5757 last_used_color.replace((sha_color, blame_entry.sha));
5758
5759 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5760
5761 let short_commit_id = blame_entry.sha.display_short();
5762
5763 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5764 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5765 let details = blame.read(cx).details_for_entry(&blame_entry);
5766
5767 h_flex()
5768 .w_full()
5769 .justify_between()
5770 .font_family(style.text.font().family)
5771 .line_height(style.text.line_height)
5772 .id(("blame", ix))
5773 .text_color(cx.theme().status().hint)
5774 .pr_2()
5775 .gap_2()
5776 .child(
5777 h_flex()
5778 .items_center()
5779 .gap_2()
5780 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5781 .child(name),
5782 )
5783 .child(relative_timestamp)
5784 .on_mouse_down(MouseButton::Right, {
5785 let blame_entry = blame_entry.clone();
5786 let details = details.clone();
5787 move |event, window, cx| {
5788 deploy_blame_entry_context_menu(
5789 &blame_entry,
5790 details.as_ref(),
5791 editor.clone(),
5792 event.position,
5793 window,
5794 cx,
5795 );
5796 }
5797 })
5798 .hover(|style| style.bg(cx.theme().colors().element_hover))
5799 .when_some(
5800 details
5801 .as_ref()
5802 .and_then(|details| details.permalink.clone()),
5803 |this, url| {
5804 this.cursor_pointer().on_click(move |_, _, cx| {
5805 cx.stop_propagation();
5806 cx.open_url(url.as_str())
5807 })
5808 },
5809 )
5810 .hoverable_tooltip(move |window, cx| {
5811 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5812 .into()
5813 })
5814 .into_any()
5815}
5816
5817fn deploy_blame_entry_context_menu(
5818 blame_entry: &BlameEntry,
5819 details: Option<&ParsedCommitMessage>,
5820 editor: Entity<Editor>,
5821 position: gpui::Point<Pixels>,
5822 window: &mut Window,
5823 cx: &mut App,
5824) {
5825 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5826 let sha = format!("{}", blame_entry.sha);
5827 menu.on_blur_subscription(Subscription::new(|| {}))
5828 .entry("Copy commit SHA", None, move |_, cx| {
5829 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5830 })
5831 .when_some(
5832 details.and_then(|details| details.permalink.clone()),
5833 |this, url| {
5834 this.entry("Open permalink", None, move |_, cx| {
5835 cx.open_url(url.as_str())
5836 })
5837 },
5838 )
5839 });
5840
5841 editor.update(cx, move |editor, cx| {
5842 editor.mouse_context_menu = Some(MouseContextMenu::new(
5843 MenuPosition::PinnedToScreen(position),
5844 context_menu,
5845 window,
5846 cx,
5847 ));
5848 cx.notify();
5849 });
5850}
5851
5852#[derive(Debug)]
5853pub(crate) struct LineWithInvisibles {
5854 fragments: SmallVec<[LineFragment; 1]>,
5855 invisibles: Vec<Invisible>,
5856 len: usize,
5857 pub(crate) width: Pixels,
5858 font_size: Pixels,
5859}
5860
5861#[allow(clippy::large_enum_variant)]
5862enum LineFragment {
5863 Text(ShapedLine),
5864 Element {
5865 element: Option<AnyElement>,
5866 size: Size<Pixels>,
5867 len: usize,
5868 },
5869}
5870
5871impl fmt::Debug for LineFragment {
5872 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5873 match self {
5874 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5875 LineFragment::Element { size, len, .. } => f
5876 .debug_struct("Element")
5877 .field("size", size)
5878 .field("len", len)
5879 .finish(),
5880 }
5881 }
5882}
5883
5884impl LineWithInvisibles {
5885 #[allow(clippy::too_many_arguments)]
5886 fn from_chunks<'a>(
5887 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5888 editor_style: &EditorStyle,
5889 max_line_len: usize,
5890 max_line_count: usize,
5891 editor_mode: EditorMode,
5892 text_width: Pixels,
5893 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5894 window: &mut Window,
5895 cx: &mut App,
5896 ) -> Vec<Self> {
5897 let text_style = &editor_style.text;
5898 let mut layouts = Vec::with_capacity(max_line_count);
5899 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5900 let mut line = String::new();
5901 let mut invisibles = Vec::new();
5902 let mut width = Pixels::ZERO;
5903 let mut len = 0;
5904 let mut styles = Vec::new();
5905 let mut non_whitespace_added = false;
5906 let mut row = 0;
5907 let mut line_exceeded_max_len = false;
5908 let font_size = text_style.font_size.to_pixels(window.rem_size());
5909
5910 let ellipsis = SharedString::from("⋯");
5911
5912 for highlighted_chunk in chunks.chain([HighlightedChunk {
5913 text: "\n",
5914 style: None,
5915 is_tab: false,
5916 replacement: None,
5917 }]) {
5918 if let Some(replacement) = highlighted_chunk.replacement {
5919 if !line.is_empty() {
5920 let shaped_line = window
5921 .text_system()
5922 .shape_line(line.clone().into(), font_size, &styles)
5923 .unwrap();
5924 width += shaped_line.width;
5925 len += shaped_line.len;
5926 fragments.push(LineFragment::Text(shaped_line));
5927 line.clear();
5928 styles.clear();
5929 }
5930
5931 match replacement {
5932 ChunkReplacement::Renderer(renderer) => {
5933 let available_width = if renderer.constrain_width {
5934 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5935 ellipsis.clone()
5936 } else {
5937 SharedString::from(Arc::from(highlighted_chunk.text))
5938 };
5939 let shaped_line = window
5940 .text_system()
5941 .shape_line(
5942 chunk,
5943 font_size,
5944 &[text_style.to_run(highlighted_chunk.text.len())],
5945 )
5946 .unwrap();
5947 AvailableSpace::Definite(shaped_line.width)
5948 } else {
5949 AvailableSpace::MinContent
5950 };
5951
5952 let mut element = (renderer.render)(&mut ChunkRendererContext {
5953 context: cx,
5954 window,
5955 max_width: text_width,
5956 });
5957 let line_height = text_style.line_height_in_pixels(window.rem_size());
5958 let size = element.layout_as_root(
5959 size(available_width, AvailableSpace::Definite(line_height)),
5960 window,
5961 cx,
5962 );
5963
5964 width += size.width;
5965 len += highlighted_chunk.text.len();
5966 fragments.push(LineFragment::Element {
5967 element: Some(element),
5968 size,
5969 len: highlighted_chunk.text.len(),
5970 });
5971 }
5972 ChunkReplacement::Str(x) => {
5973 let text_style = if let Some(style) = highlighted_chunk.style {
5974 Cow::Owned(text_style.clone().highlight(style))
5975 } else {
5976 Cow::Borrowed(text_style)
5977 };
5978
5979 let run = TextRun {
5980 len: x.len(),
5981 font: text_style.font(),
5982 color: text_style.color,
5983 background_color: text_style.background_color,
5984 underline: text_style.underline,
5985 strikethrough: text_style.strikethrough,
5986 };
5987 let line_layout = window
5988 .text_system()
5989 .shape_line(x, font_size, &[run])
5990 .unwrap()
5991 .with_len(highlighted_chunk.text.len());
5992
5993 width += line_layout.width;
5994 len += highlighted_chunk.text.len();
5995 fragments.push(LineFragment::Text(line_layout))
5996 }
5997 }
5998 } else {
5999 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6000 if ix > 0 {
6001 let shaped_line = window
6002 .text_system()
6003 .shape_line(line.clone().into(), font_size, &styles)
6004 .unwrap();
6005 width += shaped_line.width;
6006 len += shaped_line.len;
6007 fragments.push(LineFragment::Text(shaped_line));
6008 layouts.push(Self {
6009 width: mem::take(&mut width),
6010 len: mem::take(&mut len),
6011 fragments: mem::take(&mut fragments),
6012 invisibles: std::mem::take(&mut invisibles),
6013 font_size,
6014 });
6015
6016 line.clear();
6017 styles.clear();
6018 row += 1;
6019 line_exceeded_max_len = false;
6020 non_whitespace_added = false;
6021 if row == max_line_count {
6022 return layouts;
6023 }
6024 }
6025
6026 if !line_chunk.is_empty() && !line_exceeded_max_len {
6027 let text_style = if let Some(style) = highlighted_chunk.style {
6028 Cow::Owned(text_style.clone().highlight(style))
6029 } else {
6030 Cow::Borrowed(text_style)
6031 };
6032
6033 if line.len() + line_chunk.len() > max_line_len {
6034 let mut chunk_len = max_line_len - line.len();
6035 while !line_chunk.is_char_boundary(chunk_len) {
6036 chunk_len -= 1;
6037 }
6038 line_chunk = &line_chunk[..chunk_len];
6039 line_exceeded_max_len = true;
6040 }
6041
6042 styles.push(TextRun {
6043 len: line_chunk.len(),
6044 font: text_style.font(),
6045 color: text_style.color,
6046 background_color: text_style.background_color,
6047 underline: text_style.underline,
6048 strikethrough: text_style.strikethrough,
6049 });
6050
6051 if editor_mode == EditorMode::Full {
6052 // Line wrap pads its contents with fake whitespaces,
6053 // avoid printing them
6054 let is_soft_wrapped = is_row_soft_wrapped(row);
6055 if highlighted_chunk.is_tab {
6056 if non_whitespace_added || !is_soft_wrapped {
6057 invisibles.push(Invisible::Tab {
6058 line_start_offset: line.len(),
6059 line_end_offset: line.len() + line_chunk.len(),
6060 });
6061 }
6062 } else {
6063 invisibles.extend(line_chunk.char_indices().filter_map(
6064 |(index, c)| {
6065 let is_whitespace = c.is_whitespace();
6066 non_whitespace_added |= !is_whitespace;
6067 if is_whitespace
6068 && (non_whitespace_added || !is_soft_wrapped)
6069 {
6070 Some(Invisible::Whitespace {
6071 line_offset: line.len() + index,
6072 })
6073 } else {
6074 None
6075 }
6076 },
6077 ))
6078 }
6079 }
6080
6081 line.push_str(line_chunk);
6082 }
6083 }
6084 }
6085 }
6086
6087 layouts
6088 }
6089
6090 #[allow(clippy::too_many_arguments)]
6091 fn prepaint(
6092 &mut self,
6093 line_height: Pixels,
6094 scroll_pixel_position: gpui::Point<Pixels>,
6095 row: DisplayRow,
6096 content_origin: gpui::Point<Pixels>,
6097 line_elements: &mut SmallVec<[AnyElement; 1]>,
6098 window: &mut Window,
6099 cx: &mut App,
6100 ) {
6101 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6102 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6103 for fragment in &mut self.fragments {
6104 match fragment {
6105 LineFragment::Text(line) => {
6106 fragment_origin.x += line.width;
6107 }
6108 LineFragment::Element { element, size, .. } => {
6109 let mut element = element
6110 .take()
6111 .expect("you can't prepaint LineWithInvisibles twice");
6112
6113 // Center the element vertically within the line.
6114 let mut element_origin = fragment_origin;
6115 element_origin.y += (line_height - size.height) / 2.;
6116 element.prepaint_at(element_origin, window, cx);
6117 line_elements.push(element);
6118
6119 fragment_origin.x += size.width;
6120 }
6121 }
6122 }
6123 }
6124
6125 #[allow(clippy::too_many_arguments)]
6126 fn draw(
6127 &self,
6128 layout: &EditorLayout,
6129 row: DisplayRow,
6130 content_origin: gpui::Point<Pixels>,
6131 whitespace_setting: ShowWhitespaceSetting,
6132 selection_ranges: &[Range<DisplayPoint>],
6133 window: &mut Window,
6134 cx: &mut App,
6135 ) {
6136 let line_height = layout.position_map.line_height;
6137 let line_y = line_height
6138 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6139
6140 let mut fragment_origin =
6141 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6142
6143 for fragment in &self.fragments {
6144 match fragment {
6145 LineFragment::Text(line) => {
6146 line.paint(fragment_origin, line_height, window, cx)
6147 .log_err();
6148 fragment_origin.x += line.width;
6149 }
6150 LineFragment::Element { size, .. } => {
6151 fragment_origin.x += size.width;
6152 }
6153 }
6154 }
6155
6156 self.draw_invisibles(
6157 selection_ranges,
6158 layout,
6159 content_origin,
6160 line_y,
6161 row,
6162 line_height,
6163 whitespace_setting,
6164 window,
6165 cx,
6166 );
6167 }
6168
6169 #[allow(clippy::too_many_arguments)]
6170 fn draw_invisibles(
6171 &self,
6172 selection_ranges: &[Range<DisplayPoint>],
6173 layout: &EditorLayout,
6174 content_origin: gpui::Point<Pixels>,
6175 line_y: Pixels,
6176 row: DisplayRow,
6177 line_height: Pixels,
6178 whitespace_setting: ShowWhitespaceSetting,
6179 window: &mut Window,
6180 cx: &mut App,
6181 ) {
6182 let extract_whitespace_info = |invisible: &Invisible| {
6183 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6184 Invisible::Tab {
6185 line_start_offset,
6186 line_end_offset,
6187 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6188 Invisible::Whitespace { line_offset } => {
6189 (*line_offset, line_offset + 1, &layout.space_invisible)
6190 }
6191 };
6192
6193 let x_offset = self.x_for_index(token_offset);
6194 let invisible_offset =
6195 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6196 let origin = content_origin
6197 + gpui::point(
6198 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6199 line_y,
6200 );
6201
6202 (
6203 [token_offset, token_end_offset],
6204 Box::new(move |window: &mut Window, cx: &mut App| {
6205 invisible_symbol
6206 .paint(origin, line_height, window, cx)
6207 .log_err();
6208 }),
6209 )
6210 };
6211
6212 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6213 match whitespace_setting {
6214 ShowWhitespaceSetting::None => (),
6215 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6216 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6217 let invisible_point = DisplayPoint::new(row, start as u32);
6218 if !selection_ranges
6219 .iter()
6220 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6221 {
6222 return;
6223 }
6224
6225 paint(window, cx);
6226 }),
6227
6228 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6229 // - It is a tab
6230 // - It is adjacent to an edge (start or end)
6231 // - It is adjacent to a whitespace (left or right)
6232 ShowWhitespaceSetting::Boundary => {
6233 // 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
6234 // the above cases.
6235 // Note: We zip in the original `invisibles` to check for tab equality
6236 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6237 for (([start, end], paint), invisible) in
6238 invisible_iter.zip_eq(self.invisibles.iter())
6239 {
6240 let should_render = match (&last_seen, invisible) {
6241 (_, Invisible::Tab { .. }) => true,
6242 (Some((_, last_end, _)), _) => *last_end == start,
6243 _ => false,
6244 };
6245
6246 if should_render || start == 0 || end == self.len {
6247 paint(window, cx);
6248
6249 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6250 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6251 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6252 // Note that we need to make sure that the last one is actually adjacent
6253 if !should_render_last && last_end == start {
6254 paint_last(window, cx);
6255 }
6256 }
6257 }
6258
6259 // Manually render anything within a selection
6260 let invisible_point = DisplayPoint::new(row, start as u32);
6261 if selection_ranges.iter().any(|region| {
6262 region.start <= invisible_point && invisible_point < region.end
6263 }) {
6264 paint(window, cx);
6265 }
6266
6267 last_seen = Some((should_render, end, paint));
6268 }
6269 }
6270 }
6271 }
6272
6273 pub fn x_for_index(&self, index: usize) -> Pixels {
6274 let mut fragment_start_x = Pixels::ZERO;
6275 let mut fragment_start_index = 0;
6276
6277 for fragment in &self.fragments {
6278 match fragment {
6279 LineFragment::Text(shaped_line) => {
6280 let fragment_end_index = fragment_start_index + shaped_line.len;
6281 if index < fragment_end_index {
6282 return fragment_start_x
6283 + shaped_line.x_for_index(index - fragment_start_index);
6284 }
6285 fragment_start_x += shaped_line.width;
6286 fragment_start_index = fragment_end_index;
6287 }
6288 LineFragment::Element { len, size, .. } => {
6289 let fragment_end_index = fragment_start_index + len;
6290 if index < fragment_end_index {
6291 return fragment_start_x;
6292 }
6293 fragment_start_x += size.width;
6294 fragment_start_index = fragment_end_index;
6295 }
6296 }
6297 }
6298
6299 fragment_start_x
6300 }
6301
6302 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6303 let mut fragment_start_x = Pixels::ZERO;
6304 let mut fragment_start_index = 0;
6305
6306 for fragment in &self.fragments {
6307 match fragment {
6308 LineFragment::Text(shaped_line) => {
6309 let fragment_end_x = fragment_start_x + shaped_line.width;
6310 if x < fragment_end_x {
6311 return Some(
6312 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6313 );
6314 }
6315 fragment_start_x = fragment_end_x;
6316 fragment_start_index += shaped_line.len;
6317 }
6318 LineFragment::Element { len, size, .. } => {
6319 let fragment_end_x = fragment_start_x + size.width;
6320 if x < fragment_end_x {
6321 return Some(fragment_start_index);
6322 }
6323 fragment_start_index += len;
6324 fragment_start_x = fragment_end_x;
6325 }
6326 }
6327 }
6328
6329 None
6330 }
6331
6332 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6333 let mut fragment_start_index = 0;
6334
6335 for fragment in &self.fragments {
6336 match fragment {
6337 LineFragment::Text(shaped_line) => {
6338 let fragment_end_index = fragment_start_index + shaped_line.len;
6339 if index < fragment_end_index {
6340 return shaped_line.font_id_for_index(index - fragment_start_index);
6341 }
6342 fragment_start_index = fragment_end_index;
6343 }
6344 LineFragment::Element { len, .. } => {
6345 let fragment_end_index = fragment_start_index + len;
6346 if index < fragment_end_index {
6347 return None;
6348 }
6349 fragment_start_index = fragment_end_index;
6350 }
6351 }
6352 }
6353
6354 None
6355 }
6356}
6357
6358#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6359enum Invisible {
6360 /// A tab character
6361 ///
6362 /// A tab character is internally represented by spaces (configured by the user's tab width)
6363 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6364 /// adjacency checks.
6365 Tab {
6366 line_start_offset: usize,
6367 line_end_offset: usize,
6368 },
6369 Whitespace {
6370 line_offset: usize,
6371 },
6372}
6373
6374impl EditorElement {
6375 /// Returns the rem size to use when rendering the [`EditorElement`].
6376 ///
6377 /// This allows UI elements to scale based on the `buffer_font_size`.
6378 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6379 match self.editor.read(cx).mode {
6380 EditorMode::Full => {
6381 let buffer_font_size = self.style.text.font_size;
6382 match buffer_font_size {
6383 AbsoluteLength::Pixels(pixels) => {
6384 let rem_size_scale = {
6385 // Our default UI font size is 14px on a 16px base scale.
6386 // This means the default UI font size is 0.875rems.
6387 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6388
6389 // We then determine the delta between a single rem and the default font
6390 // size scale.
6391 let default_font_size_delta = 1. - default_font_size_scale;
6392
6393 // Finally, we add this delta to 1rem to get the scale factor that
6394 // should be used to scale up the UI.
6395 1. + default_font_size_delta
6396 };
6397
6398 Some(pixels * rem_size_scale)
6399 }
6400 AbsoluteLength::Rems(rems) => {
6401 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6402 }
6403 }
6404 }
6405 // We currently use single-line and auto-height editors in UI contexts,
6406 // so we don't want to scale everything with the buffer font size, as it
6407 // ends up looking off.
6408 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6409 }
6410 }
6411}
6412
6413impl Element for EditorElement {
6414 type RequestLayoutState = ();
6415 type PrepaintState = EditorLayout;
6416
6417 fn id(&self) -> Option<ElementId> {
6418 None
6419 }
6420
6421 fn request_layout(
6422 &mut self,
6423 _: Option<&GlobalElementId>,
6424 window: &mut Window,
6425 cx: &mut App,
6426 ) -> (gpui::LayoutId, ()) {
6427 let rem_size = self.rem_size(cx);
6428 window.with_rem_size(rem_size, |window| {
6429 self.editor.update(cx, |editor, cx| {
6430 editor.set_style(self.style.clone(), window, cx);
6431
6432 let layout_id = match editor.mode {
6433 EditorMode::SingleLine { auto_width } => {
6434 let rem_size = window.rem_size();
6435
6436 let height = self.style.text.line_height_in_pixels(rem_size);
6437 if auto_width {
6438 let editor_handle = cx.entity().clone();
6439 let style = self.style.clone();
6440 window.request_measured_layout(
6441 Style::default(),
6442 move |_, _, window, cx| {
6443 let editor_snapshot = editor_handle
6444 .update(cx, |editor, cx| editor.snapshot(window, cx));
6445 let line = Self::layout_lines(
6446 DisplayRow(0)..DisplayRow(1),
6447 &editor_snapshot,
6448 &style,
6449 px(f32::MAX),
6450 |_| false, // Single lines never soft wrap
6451 window,
6452 cx,
6453 )
6454 .pop()
6455 .unwrap();
6456
6457 let font_id =
6458 window.text_system().resolve_font(&style.text.font());
6459 let font_size =
6460 style.text.font_size.to_pixels(window.rem_size());
6461 let em_width =
6462 window.text_system().em_width(font_id, font_size).unwrap();
6463
6464 size(line.width + em_width, height)
6465 },
6466 )
6467 } else {
6468 let mut style = Style::default();
6469 style.size.height = height.into();
6470 style.size.width = relative(1.).into();
6471 window.request_layout(style, None, cx)
6472 }
6473 }
6474 EditorMode::AutoHeight { max_lines } => {
6475 let editor_handle = cx.entity().clone();
6476 let max_line_number_width =
6477 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6478 window.request_measured_layout(
6479 Style::default(),
6480 move |known_dimensions, available_space, window, cx| {
6481 editor_handle
6482 .update(cx, |editor, cx| {
6483 compute_auto_height_layout(
6484 editor,
6485 max_lines,
6486 max_line_number_width,
6487 known_dimensions,
6488 available_space.width,
6489 window,
6490 cx,
6491 )
6492 })
6493 .unwrap_or_default()
6494 },
6495 )
6496 }
6497 EditorMode::Full => {
6498 let mut style = Style::default();
6499 style.size.width = relative(1.).into();
6500 style.size.height = relative(1.).into();
6501 window.request_layout(style, None, cx)
6502 }
6503 };
6504
6505 (layout_id, ())
6506 })
6507 })
6508 }
6509
6510 fn prepaint(
6511 &mut self,
6512 _: Option<&GlobalElementId>,
6513 bounds: Bounds<Pixels>,
6514 _: &mut Self::RequestLayoutState,
6515 window: &mut Window,
6516 cx: &mut App,
6517 ) -> Self::PrepaintState {
6518 let text_style = TextStyleRefinement {
6519 font_size: Some(self.style.text.font_size),
6520 line_height: Some(self.style.text.line_height),
6521 ..Default::default()
6522 };
6523 let focus_handle = self.editor.focus_handle(cx);
6524 window.set_view_id(self.editor.entity_id());
6525 window.set_focus_handle(&focus_handle, cx);
6526
6527 let rem_size = self.rem_size(cx);
6528 window.with_rem_size(rem_size, |window| {
6529 window.with_text_style(Some(text_style), |window| {
6530 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6531 let mut snapshot = self
6532 .editor
6533 .update(cx, |editor, cx| editor.snapshot(window, cx));
6534 let style = self.style.clone();
6535
6536 let font_id = window.text_system().resolve_font(&style.text.font());
6537 let font_size = style.text.font_size.to_pixels(window.rem_size());
6538 let line_height = style.text.line_height_in_pixels(window.rem_size());
6539 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6540 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6541
6542 let letter_size = size(em_width, line_height);
6543
6544 let gutter_dimensions = snapshot
6545 .gutter_dimensions(
6546 font_id,
6547 font_size,
6548 self.max_line_number_width(&snapshot, window, cx),
6549 cx,
6550 )
6551 .unwrap_or_default();
6552 let text_width = bounds.size.width - gutter_dimensions.width;
6553
6554 let editor_width =
6555 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6556
6557 snapshot = self.editor.update(cx, |editor, cx| {
6558 editor.last_bounds = Some(bounds);
6559 editor.gutter_dimensions = gutter_dimensions;
6560 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6561
6562 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6563 snapshot
6564 } else {
6565 let wrap_width = match editor.soft_wrap_mode(cx) {
6566 SoftWrap::GitDiff => None,
6567 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6568 SoftWrap::EditorWidth => Some(editor_width),
6569 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6570 SoftWrap::Bounded(column) => {
6571 Some(editor_width.min(column as f32 * em_advance))
6572 }
6573 };
6574
6575 if editor.set_wrap_width(wrap_width, cx) {
6576 editor.snapshot(window, cx)
6577 } else {
6578 snapshot
6579 }
6580 }
6581 });
6582
6583 let wrap_guides = self
6584 .editor
6585 .read(cx)
6586 .wrap_guides(cx)
6587 .iter()
6588 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6589 .collect::<SmallVec<[_; 2]>>();
6590
6591 let hitbox = window.insert_hitbox(bounds, false);
6592 let gutter_hitbox =
6593 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6594 let text_hitbox = window.insert_hitbox(
6595 Bounds {
6596 origin: gutter_hitbox.top_right(),
6597 size: size(text_width, bounds.size.height),
6598 },
6599 false,
6600 );
6601 // Offset the content_bounds from the text_bounds by the gutter margin (which
6602 // is roughly half a character wide) to make hit testing work more like how we want.
6603 let content_origin =
6604 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6605
6606 let scrollbar_bounds =
6607 Bounds::from_corners(content_origin, bounds.bottom_right());
6608
6609 let height_in_lines = scrollbar_bounds.size.height / line_height;
6610
6611 // NOTE: The max row number in the current file, minus one
6612 let max_row = snapshot.max_point().row().as_f32();
6613
6614 // NOTE: The max scroll position for the top of the window
6615 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6616 (max_row - height_in_lines + 1.).max(0.)
6617 } else {
6618 let settings = EditorSettings::get_global(cx);
6619 match settings.scroll_beyond_last_line {
6620 ScrollBeyondLastLine::OnePage => max_row,
6621 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6622 ScrollBeyondLastLine::VerticalScrollMargin => {
6623 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6624 .max(0.)
6625 }
6626 }
6627 };
6628
6629 // TODO: Autoscrolling for both axes
6630 let mut autoscroll_request = None;
6631 let mut autoscroll_containing_element = false;
6632 let mut autoscroll_horizontally = false;
6633 self.editor.update(cx, |editor, cx| {
6634 autoscroll_request = editor.autoscroll_request();
6635 autoscroll_containing_element =
6636 autoscroll_request.is_some() || editor.has_pending_selection();
6637 // TODO: Is this horizontal or vertical?!
6638 autoscroll_horizontally = editor.autoscroll_vertically(
6639 bounds,
6640 line_height,
6641 max_scroll_top,
6642 window,
6643 cx,
6644 );
6645 snapshot = editor.snapshot(window, cx);
6646 });
6647
6648 let mut scroll_position = snapshot.scroll_position();
6649 // The scroll position is a fractional point, the whole number of which represents
6650 // the top of the window in terms of display rows.
6651 let start_row = DisplayRow(scroll_position.y as u32);
6652 let max_row = snapshot.max_point().row();
6653 let end_row = cmp::min(
6654 (scroll_position.y + height_in_lines).ceil() as u32,
6655 max_row.next_row().0,
6656 );
6657 let end_row = DisplayRow(end_row);
6658
6659 let row_infos = snapshot
6660 .row_infos(start_row)
6661 .take((start_row..end_row).len())
6662 .collect::<Vec<RowInfo>>();
6663 let is_row_soft_wrapped = |row: usize| {
6664 row_infos
6665 .get(row)
6666 .map_or(true, |info| info.buffer_row.is_none())
6667 };
6668
6669 let start_anchor = if start_row == Default::default() {
6670 Anchor::min()
6671 } else {
6672 snapshot.buffer_snapshot.anchor_before(
6673 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6674 )
6675 };
6676 let end_anchor = if end_row > max_row {
6677 Anchor::max()
6678 } else {
6679 snapshot.buffer_snapshot.anchor_before(
6680 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6681 )
6682 };
6683
6684 let mut highlighted_rows = self
6685 .editor
6686 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6687
6688 for (ix, row_info) in row_infos.iter().enumerate() {
6689 let Some(diff_status) = row_info.diff_status else {
6690 continue;
6691 };
6692
6693 let staged_opacity = 0.10;
6694 let unstaged_opacity = 0.04;
6695
6696 let background_color = match diff_status.kind {
6697 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6698 DiffHunkStatusKind::Deleted => {
6699 cx.theme().colors().version_control_deleted
6700 }
6701 DiffHunkStatusKind::Modified => {
6702 debug_panic!("modified diff status for row info");
6703 continue;
6704 }
6705 };
6706 let background_color =
6707 if diff_status.secondary == DiffHunkSecondaryStatus::None {
6708 background_color.opacity(staged_opacity)
6709 } else {
6710 background_color.opacity(unstaged_opacity)
6711 };
6712
6713 highlighted_rows
6714 .entry(start_row + DisplayRow(ix as u32))
6715 .or_insert(background_color.into());
6716 }
6717
6718 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6719 start_anchor..end_anchor,
6720 &snapshot.display_snapshot,
6721 cx.theme().colors(),
6722 );
6723 let highlighted_gutter_ranges =
6724 self.editor.read(cx).gutter_highlights_in_range(
6725 start_anchor..end_anchor,
6726 &snapshot.display_snapshot,
6727 cx,
6728 );
6729
6730 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6731 start_anchor..end_anchor,
6732 &snapshot.display_snapshot,
6733 cx,
6734 );
6735
6736 let (local_selections, selected_buffer_ids): (
6737 Vec<Selection<Point>>,
6738 Vec<BufferId>,
6739 ) = self.editor.update(cx, |editor, cx| {
6740 let all_selections = editor.selections.all::<Point>(cx);
6741 let selected_buffer_ids = if editor.is_singleton(cx) {
6742 Vec::new()
6743 } else {
6744 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6745
6746 for selection in all_selections {
6747 for buffer_id in snapshot
6748 .buffer_snapshot
6749 .buffer_ids_for_range(selection.range())
6750 {
6751 if selected_buffer_ids.last() != Some(&buffer_id) {
6752 selected_buffer_ids.push(buffer_id);
6753 }
6754 }
6755 }
6756
6757 selected_buffer_ids
6758 };
6759
6760 let mut selections = editor
6761 .selections
6762 .disjoint_in_range(start_anchor..end_anchor, cx);
6763 selections.extend(editor.selections.pending(cx));
6764
6765 (selections, selected_buffer_ids)
6766 });
6767
6768 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6769 start_anchor,
6770 end_anchor,
6771 &local_selections,
6772 &snapshot,
6773 start_row,
6774 end_row,
6775 window,
6776 cx,
6777 );
6778
6779 let line_numbers = self.layout_line_numbers(
6780 Some(&gutter_hitbox),
6781 gutter_dimensions,
6782 line_height,
6783 scroll_position,
6784 start_row..end_row,
6785 &row_infos,
6786 newest_selection_head,
6787 &snapshot,
6788 window,
6789 cx,
6790 );
6791
6792 let mut crease_toggles =
6793 window.with_element_namespace("crease_toggles", |window| {
6794 self.layout_crease_toggles(
6795 start_row..end_row,
6796 &row_infos,
6797 &active_rows,
6798 &snapshot,
6799 window,
6800 cx,
6801 )
6802 });
6803 let crease_trailers =
6804 window.with_element_namespace("crease_trailers", |window| {
6805 self.layout_crease_trailers(
6806 row_infos.iter().copied(),
6807 &snapshot,
6808 window,
6809 cx,
6810 )
6811 });
6812
6813 let display_hunks = self.layout_gutter_diff_hunks(
6814 line_height,
6815 &gutter_hitbox,
6816 start_row..end_row,
6817 &snapshot,
6818 window,
6819 cx,
6820 );
6821
6822 let mut line_layouts = Self::layout_lines(
6823 start_row..end_row,
6824 &snapshot,
6825 &self.style,
6826 editor_width,
6827 is_row_soft_wrapped,
6828 window,
6829 cx,
6830 );
6831
6832 let longest_line_blame_width = self
6833 .editor
6834 .update(cx, |editor, cx| {
6835 if !editor.show_git_blame_inline {
6836 return None;
6837 }
6838 let blame = editor.blame.as_ref()?;
6839 let blame_entry = blame
6840 .update(cx, |blame, cx| {
6841 let row_infos =
6842 snapshot.row_infos(snapshot.longest_row()).next()?;
6843 blame.blame_for_rows(&[row_infos], cx).next()
6844 })
6845 .flatten()?;
6846 let mut element = render_inline_blame_entry(
6847 self.editor.clone(),
6848 blame,
6849 blame_entry,
6850 &style,
6851 cx,
6852 );
6853 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6854 Some(
6855 element
6856 .layout_as_root(AvailableSpace::min_size(), window, cx)
6857 .width
6858 + inline_blame_padding,
6859 )
6860 })
6861 .unwrap_or(Pixels::ZERO);
6862
6863 let longest_line_width = layout_line(
6864 snapshot.longest_row(),
6865 &snapshot,
6866 &style,
6867 editor_width,
6868 is_row_soft_wrapped,
6869 window,
6870 cx,
6871 )
6872 .width;
6873
6874 let scrollbar_range_data = ScrollbarRangeData::new(
6875 scrollbar_bounds,
6876 letter_size,
6877 &snapshot,
6878 longest_line_width,
6879 longest_line_blame_width,
6880 &style,
6881 editor_width,
6882 cx,
6883 );
6884
6885 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6886 let mut scroll_width = scroll_range_bounds.size.width;
6887
6888 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6889 snapshot.sticky_header_excerpt(start_row)
6890 } else {
6891 None
6892 };
6893 let sticky_header_excerpt_id =
6894 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6895
6896 let blocks = window.with_element_namespace("blocks", |window| {
6897 self.render_blocks(
6898 start_row..end_row,
6899 &snapshot,
6900 &hitbox,
6901 &text_hitbox,
6902 editor_width,
6903 &mut scroll_width,
6904 &gutter_dimensions,
6905 em_width,
6906 gutter_dimensions.full_width(),
6907 line_height,
6908 &line_layouts,
6909 &local_selections,
6910 &selected_buffer_ids,
6911 is_row_soft_wrapped,
6912 sticky_header_excerpt_id,
6913 window,
6914 cx,
6915 )
6916 });
6917 let mut blocks = match blocks {
6918 Ok(blocks) => blocks,
6919 Err(resized_blocks) => {
6920 self.editor.update(cx, |editor, cx| {
6921 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6922 });
6923 return self.prepaint(None, bounds, &mut (), window, cx);
6924 }
6925 };
6926
6927 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6928 window.with_element_namespace("blocks", |window| {
6929 self.layout_sticky_buffer_header(
6930 sticky_header_excerpt,
6931 scroll_position.y,
6932 line_height,
6933 &snapshot,
6934 &hitbox,
6935 &selected_buffer_ids,
6936 window,
6937 cx,
6938 )
6939 })
6940 });
6941
6942 let start_buffer_row =
6943 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6944 let end_buffer_row =
6945 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6946
6947 let scroll_max = point(
6948 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6949 max_row.as_f32(),
6950 );
6951
6952 self.editor.update(cx, |editor, cx| {
6953 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6954
6955 let autoscrolled = if autoscroll_horizontally {
6956 editor.autoscroll_horizontally(
6957 start_row,
6958 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
6959 scroll_width,
6960 em_width,
6961 &line_layouts,
6962 cx,
6963 )
6964 } else {
6965 false
6966 };
6967
6968 if clamped || autoscrolled {
6969 snapshot = editor.snapshot(window, cx);
6970 scroll_position = snapshot.scroll_position();
6971 }
6972 });
6973
6974 let scroll_pixel_position = point(
6975 scroll_position.x * em_width,
6976 scroll_position.y * line_height,
6977 );
6978
6979 let indent_guides = self.layout_indent_guides(
6980 content_origin,
6981 text_hitbox.origin,
6982 start_buffer_row..end_buffer_row,
6983 scroll_pixel_position,
6984 line_height,
6985 &snapshot,
6986 window,
6987 cx,
6988 );
6989
6990 let crease_trailers =
6991 window.with_element_namespace("crease_trailers", |window| {
6992 self.prepaint_crease_trailers(
6993 crease_trailers,
6994 &line_layouts,
6995 line_height,
6996 content_origin,
6997 scroll_pixel_position,
6998 em_width,
6999 window,
7000 cx,
7001 )
7002 });
7003
7004 let (inline_completion_popover, inline_completion_popover_origin) = self
7005 .editor
7006 .update(cx, |editor, cx| {
7007 editor.render_edit_prediction_popover(
7008 &text_hitbox.bounds,
7009 content_origin,
7010 &snapshot,
7011 start_row..end_row,
7012 scroll_position.y,
7013 scroll_position.y + height_in_lines,
7014 &line_layouts,
7015 line_height,
7016 scroll_pixel_position,
7017 newest_selection_head,
7018 editor_width,
7019 &style,
7020 window,
7021 cx,
7022 )
7023 })
7024 .unzip();
7025
7026 let mut inline_diagnostics = self.layout_inline_diagnostics(
7027 &line_layouts,
7028 &crease_trailers,
7029 content_origin,
7030 scroll_pixel_position,
7031 inline_completion_popover_origin,
7032 start_row,
7033 end_row,
7034 line_height,
7035 em_width,
7036 &style,
7037 window,
7038 cx,
7039 );
7040
7041 let mut inline_blame = None;
7042 if let Some(newest_selection_head) = newest_selection_head {
7043 let display_row = newest_selection_head.row();
7044 if (start_row..end_row).contains(&display_row) {
7045 let line_ix = display_row.minus(start_row) as usize;
7046 let row_info = &row_infos[line_ix];
7047 let line_layout = &line_layouts[line_ix];
7048 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7049 inline_blame = self.layout_inline_blame(
7050 display_row,
7051 row_info,
7052 line_layout,
7053 crease_trailer_layout,
7054 em_width,
7055 content_origin,
7056 scroll_pixel_position,
7057 line_height,
7058 window,
7059 cx,
7060 );
7061 if inline_blame.is_some() {
7062 // Blame overrides inline diagnostics
7063 inline_diagnostics.remove(&display_row);
7064 }
7065 }
7066 }
7067
7068 let blamed_display_rows = self.layout_blame_entries(
7069 &row_infos,
7070 em_width,
7071 scroll_position,
7072 line_height,
7073 &gutter_hitbox,
7074 gutter_dimensions.git_blame_entries_width,
7075 window,
7076 cx,
7077 );
7078
7079 let scroll_max = point(
7080 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7081 max_scroll_top,
7082 );
7083
7084 self.editor.update(cx, |editor, cx| {
7085 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7086
7087 let autoscrolled = if autoscroll_horizontally {
7088 editor.autoscroll_horizontally(
7089 start_row,
7090 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7091 scroll_width,
7092 em_width,
7093 &line_layouts,
7094 cx,
7095 )
7096 } else {
7097 false
7098 };
7099
7100 if clamped || autoscrolled {
7101 snapshot = editor.snapshot(window, cx);
7102 scroll_position = snapshot.scroll_position();
7103 }
7104 });
7105
7106 let line_elements = self.prepaint_lines(
7107 start_row,
7108 &mut line_layouts,
7109 line_height,
7110 scroll_pixel_position,
7111 content_origin,
7112 window,
7113 cx,
7114 );
7115
7116 let mut block_start_rows = HashSet::default();
7117
7118 window.with_element_namespace("blocks", |window| {
7119 self.layout_blocks(
7120 &mut blocks,
7121 &mut block_start_rows,
7122 &hitbox,
7123 line_height,
7124 scroll_pixel_position,
7125 window,
7126 cx,
7127 );
7128 });
7129
7130 let cursors = self.collect_cursors(&snapshot, cx);
7131 let visible_row_range = start_row..end_row;
7132 let non_visible_cursors = cursors
7133 .iter()
7134 .any(|c| !visible_row_range.contains(&c.0.row()));
7135
7136 let visible_cursors = self.layout_visible_cursors(
7137 &snapshot,
7138 &selections,
7139 &block_start_rows,
7140 start_row..end_row,
7141 &line_layouts,
7142 &text_hitbox,
7143 content_origin,
7144 scroll_position,
7145 scroll_pixel_position,
7146 line_height,
7147 em_width,
7148 em_advance,
7149 autoscroll_containing_element,
7150 window,
7151 cx,
7152 );
7153
7154 let scrollbars_layout = self.layout_scrollbars(
7155 &snapshot,
7156 scrollbar_range_data,
7157 scroll_position,
7158 non_visible_cursors,
7159 window,
7160 cx,
7161 );
7162
7163 let gutter_settings = EditorSettings::get_global(cx).gutter;
7164
7165 let rows_with_hunk_bounds = display_hunks
7166 .iter()
7167 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7168 .fold(
7169 HashMap::default(),
7170 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7171 match hunk {
7172 DisplayDiffHunk::Folded { display_row } => {
7173 rows_with_hunk_bounds.insert(*display_row, bounds);
7174 }
7175 DisplayDiffHunk::Unfolded {
7176 display_row_range, ..
7177 } => {
7178 for display_row in display_row_range.iter_rows() {
7179 rows_with_hunk_bounds.insert(display_row, bounds);
7180 }
7181 }
7182 }
7183 rows_with_hunk_bounds
7184 },
7185 );
7186 let mut code_actions_indicator = None;
7187 if let Some(newest_selection_head) = newest_selection_head {
7188 let newest_selection_point =
7189 newest_selection_head.to_point(&snapshot.display_snapshot);
7190
7191 if (start_row..end_row).contains(&newest_selection_head.row()) {
7192 self.layout_cursor_popovers(
7193 line_height,
7194 &text_hitbox,
7195 content_origin,
7196 start_row,
7197 scroll_pixel_position,
7198 &line_layouts,
7199 newest_selection_head,
7200 newest_selection_point,
7201 &style,
7202 window,
7203 cx,
7204 );
7205
7206 let show_code_actions = snapshot
7207 .show_code_actions
7208 .unwrap_or(gutter_settings.code_actions);
7209 if show_code_actions {
7210 let newest_selection_point =
7211 newest_selection_head.to_point(&snapshot.display_snapshot);
7212 if !snapshot
7213 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7214 {
7215 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7216 MultiBufferRow(newest_selection_point.row),
7217 );
7218 if let Some((buffer, range)) = buffer {
7219 let buffer_id = buffer.remote_id();
7220 let row = range.start.row;
7221 let has_test_indicator = self
7222 .editor
7223 .read(cx)
7224 .tasks
7225 .contains_key(&(buffer_id, row));
7226
7227 if !has_test_indicator {
7228 code_actions_indicator = self
7229 .layout_code_actions_indicator(
7230 line_height,
7231 newest_selection_head,
7232 scroll_pixel_position,
7233 &gutter_dimensions,
7234 &gutter_hitbox,
7235 &rows_with_hunk_bounds,
7236 window,
7237 cx,
7238 );
7239 }
7240 }
7241 }
7242 }
7243 }
7244 }
7245
7246 self.layout_gutter_menu(
7247 line_height,
7248 &text_hitbox,
7249 content_origin,
7250 scroll_pixel_position,
7251 gutter_dimensions.width - gutter_dimensions.left_padding,
7252 window,
7253 cx,
7254 );
7255
7256 let test_indicators = if gutter_settings.runnables {
7257 self.layout_run_indicators(
7258 line_height,
7259 start_row..end_row,
7260 scroll_pixel_position,
7261 &gutter_dimensions,
7262 &gutter_hitbox,
7263 &rows_with_hunk_bounds,
7264 &snapshot,
7265 window,
7266 cx,
7267 )
7268 } else {
7269 Vec::new()
7270 };
7271
7272 self.layout_signature_help(
7273 &hitbox,
7274 content_origin,
7275 scroll_pixel_position,
7276 newest_selection_head,
7277 start_row,
7278 &line_layouts,
7279 line_height,
7280 em_width,
7281 window,
7282 cx,
7283 );
7284
7285 if !cx.has_active_drag() {
7286 self.layout_hover_popovers(
7287 &snapshot,
7288 &hitbox,
7289 &text_hitbox,
7290 start_row..end_row,
7291 content_origin,
7292 scroll_pixel_position,
7293 &line_layouts,
7294 line_height,
7295 em_width,
7296 window,
7297 cx,
7298 );
7299 }
7300
7301 let mouse_context_menu = self.layout_mouse_context_menu(
7302 &snapshot,
7303 start_row..end_row,
7304 content_origin,
7305 window,
7306 cx,
7307 );
7308
7309 window.with_element_namespace("crease_toggles", |window| {
7310 self.prepaint_crease_toggles(
7311 &mut crease_toggles,
7312 line_height,
7313 &gutter_dimensions,
7314 gutter_settings,
7315 scroll_pixel_position,
7316 &gutter_hitbox,
7317 window,
7318 cx,
7319 )
7320 });
7321
7322 let invisible_symbol_font_size = font_size / 2.;
7323 let tab_invisible = window
7324 .text_system()
7325 .shape_line(
7326 "→".into(),
7327 invisible_symbol_font_size,
7328 &[TextRun {
7329 len: "→".len(),
7330 font: self.style.text.font(),
7331 color: cx.theme().colors().editor_invisible,
7332 background_color: None,
7333 underline: None,
7334 strikethrough: None,
7335 }],
7336 )
7337 .unwrap();
7338 let space_invisible = window
7339 .text_system()
7340 .shape_line(
7341 "•".into(),
7342 invisible_symbol_font_size,
7343 &[TextRun {
7344 len: "•".len(),
7345 font: self.style.text.font(),
7346 color: cx.theme().colors().editor_invisible,
7347 background_color: None,
7348 underline: None,
7349 strikethrough: None,
7350 }],
7351 )
7352 .unwrap();
7353
7354 let mode = snapshot.mode;
7355
7356 let position_map = Rc::new(PositionMap {
7357 size: bounds.size,
7358 visible_row_range,
7359 scroll_pixel_position,
7360 scroll_max,
7361 line_layouts,
7362 line_height,
7363 em_width,
7364 em_advance,
7365 snapshot,
7366 gutter_hitbox: gutter_hitbox.clone(),
7367 text_hitbox: text_hitbox.clone(),
7368 });
7369
7370 self.editor.update(cx, |editor, _| {
7371 editor.last_position_map = Some(position_map.clone())
7372 });
7373
7374 let diff_hunk_controls = self.layout_diff_hunk_controls(
7375 start_row..end_row,
7376 &row_infos,
7377 &text_hitbox,
7378 &position_map,
7379 newest_selection_head,
7380 line_height,
7381 scroll_pixel_position,
7382 &display_hunks,
7383 self.editor.clone(),
7384 window,
7385 cx,
7386 );
7387
7388 EditorLayout {
7389 mode,
7390 position_map,
7391 visible_display_row_range: start_row..end_row,
7392 wrap_guides,
7393 indent_guides,
7394 hitbox,
7395 gutter_hitbox,
7396 display_hunks,
7397 content_origin,
7398 scrollbars_layout,
7399 active_rows,
7400 highlighted_rows,
7401 highlighted_ranges,
7402 highlighted_gutter_ranges,
7403 redacted_ranges,
7404 line_elements,
7405 line_numbers,
7406 blamed_display_rows,
7407 inline_diagnostics,
7408 inline_blame,
7409 blocks,
7410 cursors,
7411 visible_cursors,
7412 selections,
7413 inline_completion_popover,
7414 diff_hunk_controls,
7415 mouse_context_menu,
7416 test_indicators,
7417 code_actions_indicator,
7418 crease_toggles,
7419 crease_trailers,
7420 tab_invisible,
7421 space_invisible,
7422 sticky_buffer_header,
7423 }
7424 })
7425 })
7426 })
7427 }
7428
7429 fn paint(
7430 &mut self,
7431 _: Option<&GlobalElementId>,
7432 bounds: Bounds<gpui::Pixels>,
7433 _: &mut Self::RequestLayoutState,
7434 layout: &mut Self::PrepaintState,
7435 window: &mut Window,
7436 cx: &mut App,
7437 ) {
7438 let focus_handle = self.editor.focus_handle(cx);
7439 let key_context = self
7440 .editor
7441 .update(cx, |editor, cx| editor.key_context(window, cx));
7442
7443 window.set_key_context(key_context);
7444 window.handle_input(
7445 &focus_handle,
7446 ElementInputHandler::new(bounds, self.editor.clone()),
7447 cx,
7448 );
7449 self.register_actions(window, cx);
7450 self.register_key_listeners(window, cx, layout);
7451
7452 let text_style = TextStyleRefinement {
7453 font_size: Some(self.style.text.font_size),
7454 line_height: Some(self.style.text.line_height),
7455 ..Default::default()
7456 };
7457 let rem_size = self.rem_size(cx);
7458 window.with_rem_size(rem_size, |window| {
7459 window.with_text_style(Some(text_style), |window| {
7460 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7461 self.paint_mouse_listeners(layout, window, cx);
7462 self.paint_background(layout, window, cx);
7463 self.paint_indent_guides(layout, window, cx);
7464
7465 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7466 self.paint_blamed_display_rows(layout, window, cx);
7467 self.paint_line_numbers(layout, window, cx);
7468 }
7469
7470 self.paint_text(layout, window, cx);
7471
7472 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7473 self.paint_gutter_highlights(layout, window, cx);
7474 self.paint_gutter_indicators(layout, window, cx);
7475 }
7476
7477 if !layout.blocks.is_empty() {
7478 window.with_element_namespace("blocks", |window| {
7479 self.paint_blocks(layout, window, cx);
7480 });
7481 }
7482
7483 window.with_element_namespace("blocks", |window| {
7484 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7485 sticky_header.paint(window, cx)
7486 }
7487 });
7488
7489 self.paint_scrollbars(layout, window, cx);
7490 self.paint_inline_completion_popover(layout, window, cx);
7491 self.paint_mouse_context_menu(layout, window, cx);
7492 });
7493 })
7494 })
7495 }
7496}
7497
7498pub(super) fn gutter_bounds(
7499 editor_bounds: Bounds<Pixels>,
7500 gutter_dimensions: GutterDimensions,
7501) -> Bounds<Pixels> {
7502 Bounds {
7503 origin: editor_bounds.origin,
7504 size: size(gutter_dimensions.width, editor_bounds.size.height),
7505 }
7506}
7507
7508struct ScrollbarRangeData {
7509 scrollbar_bounds: Bounds<Pixels>,
7510 scroll_range: Bounds<Pixels>,
7511 letter_size: Size<Pixels>,
7512}
7513
7514impl ScrollbarRangeData {
7515 #[allow(clippy::too_many_arguments)]
7516 pub fn new(
7517 scrollbar_bounds: Bounds<Pixels>,
7518 letter_size: Size<Pixels>,
7519 snapshot: &EditorSnapshot,
7520 longest_line_width: Pixels,
7521 longest_line_blame_width: Pixels,
7522 style: &EditorStyle,
7523 editor_width: Pixels,
7524 cx: &mut App,
7525 ) -> ScrollbarRangeData {
7526 // TODO: Simplify this function down, it requires a lot of parameters
7527 let max_row = snapshot.max_point().row();
7528 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7529
7530 let settings = EditorSettings::get_global(cx);
7531 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7532 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7533 ScrollBeyondLastLine::Off => px(1.),
7534 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7535 };
7536
7537 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7538 letter_size.width + style.scrollbar_width
7539 } else {
7540 px(0.0)
7541 };
7542
7543 let overscroll = size(
7544 right_margin + longest_line_blame_width,
7545 letter_size.height * scroll_beyond_last_line,
7546 );
7547
7548 let scroll_range = Bounds {
7549 origin: scrollbar_bounds.origin,
7550 size: text_bounds_size + overscroll,
7551 };
7552
7553 ScrollbarRangeData {
7554 scrollbar_bounds,
7555 scroll_range,
7556 letter_size,
7557 }
7558 }
7559}
7560
7561impl IntoElement for EditorElement {
7562 type Element = Self;
7563
7564 fn into_element(self) -> Self::Element {
7565 self
7566 }
7567}
7568
7569pub struct EditorLayout {
7570 position_map: Rc<PositionMap>,
7571 hitbox: Hitbox,
7572 gutter_hitbox: Hitbox,
7573 content_origin: gpui::Point<Pixels>,
7574 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7575 mode: EditorMode,
7576 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7577 indent_guides: Option<Vec<IndentGuideLayout>>,
7578 visible_display_row_range: Range<DisplayRow>,
7579 active_rows: BTreeMap<DisplayRow, bool>,
7580 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7581 line_elements: SmallVec<[AnyElement; 1]>,
7582 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7583 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7584 blamed_display_rows: Option<Vec<AnyElement>>,
7585 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7586 inline_blame: Option<AnyElement>,
7587 blocks: Vec<BlockLayout>,
7588 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7589 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7590 redacted_ranges: Vec<Range<DisplayPoint>>,
7591 cursors: Vec<(DisplayPoint, Hsla)>,
7592 visible_cursors: Vec<CursorLayout>,
7593 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7594 code_actions_indicator: Option<AnyElement>,
7595 test_indicators: Vec<AnyElement>,
7596 crease_toggles: Vec<Option<AnyElement>>,
7597 diff_hunk_controls: Vec<AnyElement>,
7598 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7599 inline_completion_popover: Option<AnyElement>,
7600 mouse_context_menu: Option<AnyElement>,
7601 tab_invisible: ShapedLine,
7602 space_invisible: ShapedLine,
7603 sticky_buffer_header: Option<AnyElement>,
7604}
7605
7606impl EditorLayout {
7607 fn line_end_overshoot(&self) -> Pixels {
7608 0.15 * self.position_map.line_height
7609 }
7610}
7611
7612struct LineNumberLayout {
7613 shaped_line: ShapedLine,
7614 hitbox: Option<Hitbox>,
7615 display_row: DisplayRow,
7616}
7617
7618struct ColoredRange<T> {
7619 start: T,
7620 end: T,
7621 color: Hsla,
7622}
7623
7624#[derive(Clone)]
7625struct ScrollbarLayout {
7626 hitbox: Hitbox,
7627 visible_range: Range<f32>,
7628 visible: bool,
7629 text_unit_size: Pixels,
7630 thumb_size: Pixels,
7631 axis: Axis,
7632}
7633
7634impl ScrollbarLayout {
7635 const BORDER_WIDTH: Pixels = px(1.0);
7636 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7637 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7638 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7639
7640 fn thumb_bounds(&self) -> Bounds<Pixels> {
7641 match self.axis {
7642 Axis::Vertical => {
7643 let thumb_top = self.y_for_row(self.visible_range.start);
7644 let thumb_bottom = thumb_top + self.thumb_size;
7645 Bounds::from_corners(
7646 point(self.hitbox.left(), thumb_top),
7647 point(self.hitbox.right(), thumb_bottom),
7648 )
7649 }
7650 Axis::Horizontal => {
7651 let thumb_left =
7652 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7653 let thumb_right = thumb_left + self.thumb_size;
7654 Bounds::from_corners(
7655 point(thumb_left, self.hitbox.top()),
7656 point(thumb_right, self.hitbox.bottom()),
7657 )
7658 }
7659 }
7660 }
7661
7662 fn y_for_row(&self, row: f32) -> Pixels {
7663 self.hitbox.top() + row * self.text_unit_size
7664 }
7665
7666 fn marker_quads_for_ranges(
7667 &self,
7668 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7669 column: Option<usize>,
7670 ) -> Vec<PaintQuad> {
7671 struct MinMax {
7672 min: Pixels,
7673 max: Pixels,
7674 }
7675 let (x_range, height_limit) = if let Some(column) = column {
7676 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7677 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7678 let end = start + column_width;
7679 (
7680 Range { start, end },
7681 MinMax {
7682 min: Self::MIN_MARKER_HEIGHT,
7683 max: px(f32::MAX),
7684 },
7685 )
7686 } else {
7687 (
7688 Range {
7689 start: Self::BORDER_WIDTH,
7690 end: self.hitbox.size.width,
7691 },
7692 MinMax {
7693 min: Self::LINE_MARKER_HEIGHT,
7694 max: Self::LINE_MARKER_HEIGHT,
7695 },
7696 )
7697 };
7698
7699 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7700 let mut pixel_ranges = row_ranges
7701 .into_iter()
7702 .map(|range| {
7703 let start_y = row_to_y(range.start);
7704 let end_y = row_to_y(range.end)
7705 + self
7706 .text_unit_size
7707 .max(height_limit.min)
7708 .min(height_limit.max);
7709 ColoredRange {
7710 start: start_y,
7711 end: end_y,
7712 color: range.color,
7713 }
7714 })
7715 .peekable();
7716
7717 let mut quads = Vec::new();
7718 while let Some(mut pixel_range) = pixel_ranges.next() {
7719 while let Some(next_pixel_range) = pixel_ranges.peek() {
7720 if pixel_range.end >= next_pixel_range.start - px(1.0)
7721 && pixel_range.color == next_pixel_range.color
7722 {
7723 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7724 pixel_ranges.next();
7725 } else {
7726 break;
7727 }
7728 }
7729
7730 let bounds = Bounds::from_corners(
7731 point(x_range.start, pixel_range.start),
7732 point(x_range.end, pixel_range.end),
7733 );
7734 quads.push(quad(
7735 bounds,
7736 Corners::default(),
7737 pixel_range.color,
7738 Edges::default(),
7739 Hsla::transparent_black(),
7740 ));
7741 }
7742
7743 quads
7744 }
7745}
7746
7747struct CreaseTrailerLayout {
7748 element: AnyElement,
7749 bounds: Bounds<Pixels>,
7750}
7751
7752pub(crate) struct PositionMap {
7753 pub size: Size<Pixels>,
7754 pub line_height: Pixels,
7755 pub scroll_pixel_position: gpui::Point<Pixels>,
7756 pub scroll_max: gpui::Point<f32>,
7757 pub em_width: Pixels,
7758 pub em_advance: Pixels,
7759 pub visible_row_range: Range<DisplayRow>,
7760 pub line_layouts: Vec<LineWithInvisibles>,
7761 pub snapshot: EditorSnapshot,
7762 pub text_hitbox: Hitbox,
7763 pub gutter_hitbox: Hitbox,
7764}
7765
7766#[derive(Debug, Copy, Clone)]
7767pub struct PointForPosition {
7768 pub previous_valid: DisplayPoint,
7769 pub next_valid: DisplayPoint,
7770 pub exact_unclipped: DisplayPoint,
7771 pub column_overshoot_after_line_end: u32,
7772}
7773
7774impl PointForPosition {
7775 pub fn as_valid(&self) -> Option<DisplayPoint> {
7776 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7777 Some(self.previous_valid)
7778 } else {
7779 None
7780 }
7781 }
7782}
7783
7784impl PositionMap {
7785 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7786 let text_bounds = self.text_hitbox.bounds;
7787 let scroll_position = self.snapshot.scroll_position();
7788 let position = position - text_bounds.origin;
7789 let y = position.y.max(px(0.)).min(self.size.height);
7790 let x = position.x + (scroll_position.x * self.em_width);
7791 let row = ((y / self.line_height) + scroll_position.y) as u32;
7792
7793 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7794 .line_layouts
7795 .get(row as usize - scroll_position.y as usize)
7796 {
7797 if let Some(ix) = line.index_for_x(x) {
7798 (ix as u32, px(0.))
7799 } else {
7800 (line.len as u32, px(0.).max(x - line.width))
7801 }
7802 } else {
7803 (0, x)
7804 };
7805
7806 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7807 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7808 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7809
7810 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7811 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7812 PointForPosition {
7813 previous_valid,
7814 next_valid,
7815 exact_unclipped,
7816 column_overshoot_after_line_end,
7817 }
7818 }
7819}
7820
7821struct BlockLayout {
7822 id: BlockId,
7823 row: Option<DisplayRow>,
7824 element: AnyElement,
7825 available_space: Size<AvailableSpace>,
7826 style: BlockStyle,
7827}
7828
7829pub fn layout_line(
7830 row: DisplayRow,
7831 snapshot: &EditorSnapshot,
7832 style: &EditorStyle,
7833 text_width: Pixels,
7834 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7835 window: &mut Window,
7836 cx: &mut App,
7837) -> LineWithInvisibles {
7838 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7839 LineWithInvisibles::from_chunks(
7840 chunks,
7841 &style,
7842 MAX_LINE_LEN,
7843 1,
7844 snapshot.mode,
7845 text_width,
7846 is_row_soft_wrapped,
7847 window,
7848 cx,
7849 )
7850 .pop()
7851 .unwrap()
7852}
7853
7854#[derive(Debug)]
7855pub struct IndentGuideLayout {
7856 origin: gpui::Point<Pixels>,
7857 length: Pixels,
7858 single_indent_width: Pixels,
7859 depth: u32,
7860 active: bool,
7861 settings: IndentGuideSettings,
7862}
7863
7864pub struct CursorLayout {
7865 origin: gpui::Point<Pixels>,
7866 block_width: Pixels,
7867 line_height: Pixels,
7868 color: Hsla,
7869 shape: CursorShape,
7870 block_text: Option<ShapedLine>,
7871 cursor_name: Option<AnyElement>,
7872}
7873
7874#[derive(Debug)]
7875pub struct CursorName {
7876 string: SharedString,
7877 color: Hsla,
7878 is_top_row: bool,
7879}
7880
7881impl CursorLayout {
7882 pub fn new(
7883 origin: gpui::Point<Pixels>,
7884 block_width: Pixels,
7885 line_height: Pixels,
7886 color: Hsla,
7887 shape: CursorShape,
7888 block_text: Option<ShapedLine>,
7889 ) -> CursorLayout {
7890 CursorLayout {
7891 origin,
7892 block_width,
7893 line_height,
7894 color,
7895 shape,
7896 block_text,
7897 cursor_name: None,
7898 }
7899 }
7900
7901 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7902 Bounds {
7903 origin: self.origin + origin,
7904 size: size(self.block_width, self.line_height),
7905 }
7906 }
7907
7908 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7909 match self.shape {
7910 CursorShape::Bar => Bounds {
7911 origin: self.origin + origin,
7912 size: size(px(2.0), self.line_height),
7913 },
7914 CursorShape::Block | CursorShape::Hollow => Bounds {
7915 origin: self.origin + origin,
7916 size: size(self.block_width, self.line_height),
7917 },
7918 CursorShape::Underline => Bounds {
7919 origin: self.origin
7920 + origin
7921 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7922 size: size(self.block_width, px(2.0)),
7923 },
7924 }
7925 }
7926
7927 pub fn layout(
7928 &mut self,
7929 origin: gpui::Point<Pixels>,
7930 cursor_name: Option<CursorName>,
7931 window: &mut Window,
7932 cx: &mut App,
7933 ) {
7934 if let Some(cursor_name) = cursor_name {
7935 let bounds = self.bounds(origin);
7936 let text_size = self.line_height / 1.5;
7937
7938 let name_origin = if cursor_name.is_top_row {
7939 point(bounds.right() - px(1.), bounds.top())
7940 } else {
7941 match self.shape {
7942 CursorShape::Bar => point(
7943 bounds.right() - px(2.),
7944 bounds.top() - text_size / 2. - px(1.),
7945 ),
7946 _ => point(
7947 bounds.right() - px(1.),
7948 bounds.top() - text_size / 2. - px(1.),
7949 ),
7950 }
7951 };
7952 let mut name_element = div()
7953 .bg(self.color)
7954 .text_size(text_size)
7955 .px_0p5()
7956 .line_height(text_size + px(2.))
7957 .text_color(cursor_name.color)
7958 .child(cursor_name.string.clone())
7959 .into_any_element();
7960
7961 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
7962
7963 self.cursor_name = Some(name_element);
7964 }
7965 }
7966
7967 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
7968 let bounds = self.bounds(origin);
7969
7970 //Draw background or border quad
7971 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7972 outline(bounds, self.color)
7973 } else {
7974 fill(bounds, self.color)
7975 };
7976
7977 if let Some(name) = &mut self.cursor_name {
7978 name.paint(window, cx);
7979 }
7980
7981 window.paint_quad(cursor);
7982
7983 if let Some(block_text) = &self.block_text {
7984 block_text
7985 .paint(self.origin + origin, self.line_height, window, cx)
7986 .log_err();
7987 }
7988 }
7989
7990 pub fn shape(&self) -> CursorShape {
7991 self.shape
7992 }
7993}
7994
7995#[derive(Debug)]
7996pub struct HighlightedRange {
7997 pub start_y: Pixels,
7998 pub line_height: Pixels,
7999 pub lines: Vec<HighlightedRangeLine>,
8000 pub color: Hsla,
8001 pub corner_radius: Pixels,
8002}
8003
8004#[derive(Debug)]
8005pub struct HighlightedRangeLine {
8006 pub start_x: Pixels,
8007 pub end_x: Pixels,
8008}
8009
8010impl HighlightedRange {
8011 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8012 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8013 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8014 self.paint_lines(
8015 self.start_y + self.line_height,
8016 &self.lines[1..],
8017 bounds,
8018 window,
8019 );
8020 } else {
8021 self.paint_lines(self.start_y, &self.lines, bounds, window);
8022 }
8023 }
8024
8025 fn paint_lines(
8026 &self,
8027 start_y: Pixels,
8028 lines: &[HighlightedRangeLine],
8029 _bounds: Bounds<Pixels>,
8030 window: &mut Window,
8031 ) {
8032 if lines.is_empty() {
8033 return;
8034 }
8035
8036 let first_line = lines.first().unwrap();
8037 let last_line = lines.last().unwrap();
8038
8039 let first_top_left = point(first_line.start_x, start_y);
8040 let first_top_right = point(first_line.end_x, start_y);
8041
8042 let curve_height = point(Pixels::ZERO, self.corner_radius);
8043 let curve_width = |start_x: Pixels, end_x: Pixels| {
8044 let max = (end_x - start_x) / 2.;
8045 let width = if max < self.corner_radius {
8046 max
8047 } else {
8048 self.corner_radius
8049 };
8050
8051 point(width, Pixels::ZERO)
8052 };
8053
8054 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8055 let mut builder = gpui::PathBuilder::fill();
8056 builder.move_to(first_top_right - top_curve_width);
8057 builder.curve_to(first_top_right + curve_height, first_top_right);
8058
8059 let mut iter = lines.iter().enumerate().peekable();
8060 while let Some((ix, line)) = iter.next() {
8061 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8062
8063 if let Some((_, next_line)) = iter.peek() {
8064 let next_top_right = point(next_line.end_x, bottom_right.y);
8065
8066 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8067 Ordering::Equal => {
8068 builder.line_to(bottom_right);
8069 }
8070 Ordering::Less => {
8071 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8072 builder.line_to(bottom_right - curve_height);
8073 if self.corner_radius > Pixels::ZERO {
8074 builder.curve_to(bottom_right - curve_width, bottom_right);
8075 }
8076 builder.line_to(next_top_right + curve_width);
8077 if self.corner_radius > Pixels::ZERO {
8078 builder.curve_to(next_top_right + curve_height, next_top_right);
8079 }
8080 }
8081 Ordering::Greater => {
8082 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8083 builder.line_to(bottom_right - curve_height);
8084 if self.corner_radius > Pixels::ZERO {
8085 builder.curve_to(bottom_right + curve_width, bottom_right);
8086 }
8087 builder.line_to(next_top_right - curve_width);
8088 if self.corner_radius > Pixels::ZERO {
8089 builder.curve_to(next_top_right + curve_height, next_top_right);
8090 }
8091 }
8092 }
8093 } else {
8094 let curve_width = curve_width(line.start_x, line.end_x);
8095 builder.line_to(bottom_right - curve_height);
8096 if self.corner_radius > Pixels::ZERO {
8097 builder.curve_to(bottom_right - curve_width, bottom_right);
8098 }
8099
8100 let bottom_left = point(line.start_x, bottom_right.y);
8101 builder.line_to(bottom_left + curve_width);
8102 if self.corner_radius > Pixels::ZERO {
8103 builder.curve_to(bottom_left - curve_height, bottom_left);
8104 }
8105 }
8106 }
8107
8108 if first_line.start_x > last_line.start_x {
8109 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8110 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8111 builder.line_to(second_top_left + curve_height);
8112 if self.corner_radius > Pixels::ZERO {
8113 builder.curve_to(second_top_left + curve_width, second_top_left);
8114 }
8115 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8116 builder.line_to(first_bottom_left - curve_width);
8117 if self.corner_radius > Pixels::ZERO {
8118 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8119 }
8120 }
8121
8122 builder.line_to(first_top_left + curve_height);
8123 if self.corner_radius > Pixels::ZERO {
8124 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8125 }
8126 builder.line_to(first_top_right - top_curve_width);
8127
8128 if let Ok(path) = builder.build() {
8129 window.paint_path(path, self.color);
8130 }
8131 }
8132}
8133
8134enum CursorPopoverType {
8135 CodeContextMenu,
8136 EditPrediction,
8137}
8138
8139pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8140 (delta.pow(1.5) / 100.0).into()
8141}
8142
8143fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8144 (delta.pow(1.2) / 300.0).into()
8145}
8146
8147pub fn register_action<T: Action>(
8148 editor: &Entity<Editor>,
8149 window: &mut Window,
8150 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8151) {
8152 let editor = editor.clone();
8153 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8154 let action = action.downcast_ref().unwrap();
8155 if phase == DispatchPhase::Bubble {
8156 editor.update(cx, |editor, cx| {
8157 listener(editor, action, window, cx);
8158 })
8159 }
8160 })
8161}
8162
8163fn compute_auto_height_layout(
8164 editor: &mut Editor,
8165 max_lines: usize,
8166 max_line_number_width: Pixels,
8167 known_dimensions: Size<Option<Pixels>>,
8168 available_width: AvailableSpace,
8169 window: &mut Window,
8170 cx: &mut Context<Editor>,
8171) -> Option<Size<Pixels>> {
8172 let width = known_dimensions.width.or({
8173 if let AvailableSpace::Definite(available_width) = available_width {
8174 Some(available_width)
8175 } else {
8176 None
8177 }
8178 })?;
8179 if let Some(height) = known_dimensions.height {
8180 return Some(size(width, height));
8181 }
8182
8183 let style = editor.style.as_ref().unwrap();
8184 let font_id = window.text_system().resolve_font(&style.text.font());
8185 let font_size = style.text.font_size.to_pixels(window.rem_size());
8186 let line_height = style.text.line_height_in_pixels(window.rem_size());
8187 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8188
8189 let mut snapshot = editor.snapshot(window, cx);
8190 let gutter_dimensions = snapshot
8191 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8192 .unwrap_or_default();
8193
8194 editor.gutter_dimensions = gutter_dimensions;
8195 let text_width = width - gutter_dimensions.width;
8196 let overscroll = size(em_width, px(0.));
8197
8198 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8199 if editor.set_wrap_width(Some(editor_width), cx) {
8200 snapshot = editor.snapshot(window, cx);
8201 }
8202
8203 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8204 let height = scroll_height
8205 .max(line_height)
8206 .min(line_height * max_lines as f32);
8207
8208 Some(size(width, height))
8209}
8210
8211#[cfg(test)]
8212mod tests {
8213 use super::*;
8214 use crate::{
8215 display_map::{BlockPlacement, BlockProperties},
8216 editor_tests::{init_test, update_test_language_settings},
8217 Editor, MultiBuffer,
8218 };
8219 use gpui::{TestAppContext, VisualTestContext};
8220 use language::language_settings;
8221 use log::info;
8222 use std::num::NonZeroU32;
8223 use util::test::sample_text;
8224
8225 #[gpui::test]
8226 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8227 init_test(cx, |_| {});
8228 let window = cx.add_window(|window, cx| {
8229 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8230 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8231 });
8232
8233 let editor = window.root(cx).unwrap();
8234 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8235 let line_height = window
8236 .update(cx, |_, window, _| {
8237 style.text.line_height_in_pixels(window.rem_size())
8238 })
8239 .unwrap();
8240 let element = EditorElement::new(&editor, style);
8241 let snapshot = window
8242 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8243 .unwrap();
8244
8245 let layouts = cx
8246 .update_window(*window, |_, window, cx| {
8247 element.layout_line_numbers(
8248 None,
8249 GutterDimensions {
8250 left_padding: Pixels::ZERO,
8251 right_padding: Pixels::ZERO,
8252 width: px(30.0),
8253 margin: Pixels::ZERO,
8254 git_blame_entries_width: None,
8255 },
8256 line_height,
8257 gpui::Point::default(),
8258 DisplayRow(0)..DisplayRow(6),
8259 &(0..6)
8260 .map(|row| RowInfo {
8261 buffer_row: Some(row),
8262 ..Default::default()
8263 })
8264 .collect::<Vec<_>>(),
8265 Some(DisplayPoint::new(DisplayRow(0), 0)),
8266 &snapshot,
8267 window,
8268 cx,
8269 )
8270 })
8271 .unwrap();
8272 assert_eq!(layouts.len(), 6);
8273
8274 let relative_rows = window
8275 .update(cx, |editor, window, cx| {
8276 let snapshot = editor.snapshot(window, cx);
8277 element.calculate_relative_line_numbers(
8278 &snapshot,
8279 &(DisplayRow(0)..DisplayRow(6)),
8280 Some(DisplayRow(3)),
8281 )
8282 })
8283 .unwrap();
8284 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8285 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8286 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8287 // current line has no relative number
8288 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8289 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8290
8291 // works if cursor is before screen
8292 let relative_rows = window
8293 .update(cx, |editor, window, cx| {
8294 let snapshot = editor.snapshot(window, cx);
8295 element.calculate_relative_line_numbers(
8296 &snapshot,
8297 &(DisplayRow(3)..DisplayRow(6)),
8298 Some(DisplayRow(1)),
8299 )
8300 })
8301 .unwrap();
8302 assert_eq!(relative_rows.len(), 3);
8303 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8304 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8305 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8306
8307 // works if cursor is after screen
8308 let relative_rows = window
8309 .update(cx, |editor, window, cx| {
8310 let snapshot = editor.snapshot(window, cx);
8311 element.calculate_relative_line_numbers(
8312 &snapshot,
8313 &(DisplayRow(0)..DisplayRow(3)),
8314 Some(DisplayRow(6)),
8315 )
8316 })
8317 .unwrap();
8318 assert_eq!(relative_rows.len(), 3);
8319 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8320 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8321 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8322 }
8323
8324 #[gpui::test]
8325 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8326 init_test(cx, |_| {});
8327
8328 let window = cx.add_window(|window, cx| {
8329 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8330 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8331 });
8332 let cx = &mut VisualTestContext::from_window(*window, cx);
8333 let editor = window.root(cx).unwrap();
8334 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8335
8336 window
8337 .update(cx, |editor, window, cx| {
8338 editor.cursor_shape = CursorShape::Block;
8339 editor.change_selections(None, window, cx, |s| {
8340 s.select_ranges([
8341 Point::new(0, 0)..Point::new(1, 0),
8342 Point::new(3, 2)..Point::new(3, 3),
8343 Point::new(5, 6)..Point::new(6, 0),
8344 ]);
8345 });
8346 })
8347 .unwrap();
8348
8349 let (_, state) = cx.draw(
8350 point(px(500.), px(500.)),
8351 size(px(500.), px(500.)),
8352 |_, _| EditorElement::new(&editor, style),
8353 );
8354
8355 assert_eq!(state.selections.len(), 1);
8356 let local_selections = &state.selections[0].1;
8357 assert_eq!(local_selections.len(), 3);
8358 // moves cursor back one line
8359 assert_eq!(
8360 local_selections[0].head,
8361 DisplayPoint::new(DisplayRow(0), 6)
8362 );
8363 assert_eq!(
8364 local_selections[0].range,
8365 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8366 );
8367
8368 // moves cursor back one column
8369 assert_eq!(
8370 local_selections[1].range,
8371 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8372 );
8373 assert_eq!(
8374 local_selections[1].head,
8375 DisplayPoint::new(DisplayRow(3), 2)
8376 );
8377
8378 // leaves cursor on the max point
8379 assert_eq!(
8380 local_selections[2].range,
8381 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8382 );
8383 assert_eq!(
8384 local_selections[2].head,
8385 DisplayPoint::new(DisplayRow(6), 0)
8386 );
8387
8388 // active lines does not include 1 (even though the range of the selection does)
8389 assert_eq!(
8390 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8391 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8392 );
8393
8394 // multi-buffer support
8395 // in DisplayPoint coordinates, this is what we're dealing with:
8396 // 0: [[file
8397 // 1: header
8398 // 2: section]]
8399 // 3: aaaaaa
8400 // 4: bbbbbb
8401 // 5: cccccc
8402 // 6:
8403 // 7: [[footer]]
8404 // 8: [[header]]
8405 // 9: ffffff
8406 // 10: gggggg
8407 // 11: hhhhhh
8408 // 12:
8409 // 13: [[footer]]
8410 // 14: [[file
8411 // 15: header
8412 // 16: section]]
8413 // 17: bbbbbb
8414 // 18: cccccc
8415 // 19: dddddd
8416 // 20: [[footer]]
8417 let window = cx.add_window(|window, cx| {
8418 let buffer = MultiBuffer::build_multi(
8419 [
8420 (
8421 &(sample_text(8, 6, 'a') + "\n"),
8422 vec![
8423 Point::new(0, 0)..Point::new(3, 0),
8424 Point::new(4, 0)..Point::new(7, 0),
8425 ],
8426 ),
8427 (
8428 &(sample_text(8, 6, 'a') + "\n"),
8429 vec![Point::new(1, 0)..Point::new(3, 0)],
8430 ),
8431 ],
8432 cx,
8433 );
8434 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8435 });
8436 let editor = window.root(cx).unwrap();
8437 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8438 let _state = window.update(cx, |editor, window, cx| {
8439 editor.cursor_shape = CursorShape::Block;
8440 editor.change_selections(None, window, cx, |s| {
8441 s.select_display_ranges([
8442 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8443 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8444 ]);
8445 });
8446 });
8447
8448 let (_, state) = cx.draw(
8449 point(px(500.), px(500.)),
8450 size(px(500.), px(500.)),
8451 |_, _| EditorElement::new(&editor, style),
8452 );
8453 assert_eq!(state.selections.len(), 1);
8454 let local_selections = &state.selections[0].1;
8455 assert_eq!(local_selections.len(), 2);
8456
8457 // moves cursor on excerpt boundary back a line
8458 // and doesn't allow selection to bleed through
8459 assert_eq!(
8460 local_selections[0].range,
8461 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8462 );
8463 assert_eq!(
8464 local_selections[0].head,
8465 DisplayPoint::new(DisplayRow(6), 0)
8466 );
8467 // moves cursor on buffer boundary back two lines
8468 // and doesn't allow selection to bleed through
8469 assert_eq!(
8470 local_selections[1].range,
8471 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8472 );
8473 assert_eq!(
8474 local_selections[1].head,
8475 DisplayPoint::new(DisplayRow(12), 0)
8476 );
8477 }
8478
8479 #[gpui::test]
8480 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8481 init_test(cx, |_| {});
8482
8483 let window = cx.add_window(|window, cx| {
8484 let buffer = MultiBuffer::build_simple("", cx);
8485 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8486 });
8487 let cx = &mut VisualTestContext::from_window(*window, cx);
8488 let editor = window.root(cx).unwrap();
8489 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8490 window
8491 .update(cx, |editor, window, cx| {
8492 editor.set_placeholder_text("hello", cx);
8493 editor.insert_blocks(
8494 [BlockProperties {
8495 style: BlockStyle::Fixed,
8496 placement: BlockPlacement::Above(Anchor::min()),
8497 height: 3,
8498 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8499 priority: 0,
8500 }],
8501 None,
8502 cx,
8503 );
8504
8505 // Blur the editor so that it displays placeholder text.
8506 window.blur();
8507 })
8508 .unwrap();
8509
8510 let (_, state) = cx.draw(
8511 point(px(500.), px(500.)),
8512 size(px(500.), px(500.)),
8513 |_, _| EditorElement::new(&editor, style),
8514 );
8515 assert_eq!(state.position_map.line_layouts.len(), 4);
8516 assert_eq!(state.line_numbers.len(), 1);
8517 assert_eq!(
8518 state
8519 .line_numbers
8520 .get(&MultiBufferRow(0))
8521 .map(|line_number| line_number.shaped_line.text.as_ref()),
8522 Some("1")
8523 );
8524 }
8525
8526 #[gpui::test]
8527 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8528 const TAB_SIZE: u32 = 4;
8529
8530 let input_text = "\t \t|\t| a b";
8531 let expected_invisibles = vec![
8532 Invisible::Tab {
8533 line_start_offset: 0,
8534 line_end_offset: TAB_SIZE as usize,
8535 },
8536 Invisible::Whitespace {
8537 line_offset: TAB_SIZE as usize,
8538 },
8539 Invisible::Tab {
8540 line_start_offset: TAB_SIZE as usize + 1,
8541 line_end_offset: TAB_SIZE as usize * 2,
8542 },
8543 Invisible::Tab {
8544 line_start_offset: TAB_SIZE as usize * 2 + 1,
8545 line_end_offset: TAB_SIZE as usize * 3,
8546 },
8547 Invisible::Whitespace {
8548 line_offset: TAB_SIZE as usize * 3 + 1,
8549 },
8550 Invisible::Whitespace {
8551 line_offset: TAB_SIZE as usize * 3 + 3,
8552 },
8553 ];
8554 assert_eq!(
8555 expected_invisibles.len(),
8556 input_text
8557 .chars()
8558 .filter(|initial_char| initial_char.is_whitespace())
8559 .count(),
8560 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8561 );
8562
8563 for show_line_numbers in [true, false] {
8564 init_test(cx, |s| {
8565 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8566 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8567 });
8568
8569 let actual_invisibles = collect_invisibles_from_new_editor(
8570 cx,
8571 EditorMode::Full,
8572 input_text,
8573 px(500.0),
8574 show_line_numbers,
8575 );
8576
8577 assert_eq!(expected_invisibles, actual_invisibles);
8578 }
8579 }
8580
8581 #[gpui::test]
8582 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8583 init_test(cx, |s| {
8584 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8585 s.defaults.tab_size = NonZeroU32::new(4);
8586 });
8587
8588 for editor_mode_without_invisibles in [
8589 EditorMode::SingleLine { auto_width: false },
8590 EditorMode::AutoHeight { max_lines: 100 },
8591 ] {
8592 for show_line_numbers in [true, false] {
8593 let invisibles = collect_invisibles_from_new_editor(
8594 cx,
8595 editor_mode_without_invisibles,
8596 "\t\t\t| | a b",
8597 px(500.0),
8598 show_line_numbers,
8599 );
8600 assert!(invisibles.is_empty(),
8601 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8602 }
8603 }
8604 }
8605
8606 #[gpui::test]
8607 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8608 let tab_size = 4;
8609 let input_text = "a\tbcd ".repeat(9);
8610 let repeated_invisibles = [
8611 Invisible::Tab {
8612 line_start_offset: 1,
8613 line_end_offset: tab_size as usize,
8614 },
8615 Invisible::Whitespace {
8616 line_offset: tab_size as usize + 3,
8617 },
8618 Invisible::Whitespace {
8619 line_offset: tab_size as usize + 4,
8620 },
8621 Invisible::Whitespace {
8622 line_offset: tab_size as usize + 5,
8623 },
8624 Invisible::Whitespace {
8625 line_offset: tab_size as usize + 6,
8626 },
8627 Invisible::Whitespace {
8628 line_offset: tab_size as usize + 7,
8629 },
8630 ];
8631 let expected_invisibles = std::iter::once(repeated_invisibles)
8632 .cycle()
8633 .take(9)
8634 .flatten()
8635 .collect::<Vec<_>>();
8636 assert_eq!(
8637 expected_invisibles.len(),
8638 input_text
8639 .chars()
8640 .filter(|initial_char| initial_char.is_whitespace())
8641 .count(),
8642 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8643 );
8644 info!("Expected invisibles: {expected_invisibles:?}");
8645
8646 init_test(cx, |_| {});
8647
8648 // Put the same string with repeating whitespace pattern into editors of various size,
8649 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8650 let resize_step = 10.0;
8651 let mut editor_width = 200.0;
8652 while editor_width <= 1000.0 {
8653 for show_line_numbers in [true, false] {
8654 update_test_language_settings(cx, |s| {
8655 s.defaults.tab_size = NonZeroU32::new(tab_size);
8656 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8657 s.defaults.preferred_line_length = Some(editor_width as u32);
8658 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8659 });
8660
8661 let actual_invisibles = collect_invisibles_from_new_editor(
8662 cx,
8663 EditorMode::Full,
8664 &input_text,
8665 px(editor_width),
8666 show_line_numbers,
8667 );
8668
8669 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8670 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8671 let mut i = 0;
8672 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8673 i = actual_index;
8674 match expected_invisibles.get(i) {
8675 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8676 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8677 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8678 _ => {
8679 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8680 }
8681 },
8682 None => {
8683 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8684 }
8685 }
8686 }
8687 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8688 assert!(
8689 missing_expected_invisibles.is_empty(),
8690 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8691 );
8692
8693 editor_width += resize_step;
8694 }
8695 }
8696 }
8697
8698 fn collect_invisibles_from_new_editor(
8699 cx: &mut TestAppContext,
8700 editor_mode: EditorMode,
8701 input_text: &str,
8702 editor_width: Pixels,
8703 show_line_numbers: bool,
8704 ) -> Vec<Invisible> {
8705 info!(
8706 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8707 editor_width.0
8708 );
8709 let window = cx.add_window(|window, cx| {
8710 let buffer = MultiBuffer::build_simple(input_text, cx);
8711 Editor::new(editor_mode, buffer, None, true, window, cx)
8712 });
8713 let cx = &mut VisualTestContext::from_window(*window, cx);
8714 let editor = window.root(cx).unwrap();
8715
8716 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8717 window
8718 .update(cx, |editor, _, cx| {
8719 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8720 editor.set_wrap_width(Some(editor_width), cx);
8721 editor.set_show_line_numbers(show_line_numbers, cx);
8722 })
8723 .unwrap();
8724 let (_, state) = cx.draw(
8725 point(px(500.), px(500.)),
8726 size(px(500.), px(500.)),
8727 |_, _| EditorElement::new(&editor, style),
8728 );
8729 state
8730 .position_map
8731 .line_layouts
8732 .iter()
8733 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8734 .cloned()
8735 .collect()
8736 }
8737}
8738
8739fn diff_hunk_controls(
8740 row: u32,
8741 status: &DiffHunkStatus,
8742 hunk_range: Range<Anchor>,
8743 line_height: Pixels,
8744 editor: &Entity<Editor>,
8745 cx: &mut App,
8746) -> AnyElement {
8747 h_flex()
8748 .h(line_height)
8749 .mr_1()
8750 .gap_1()
8751 .px_1()
8752 .pb_1()
8753 .border_b_1()
8754 .border_color(cx.theme().colors().border_variant)
8755 .rounded_b_lg()
8756 .bg(cx.theme().colors().editor_background)
8757 .gap_1()
8758 .when(status.secondary == DiffHunkSecondaryStatus::None, |el| {
8759 el.child(
8760 Button::new("unstage", "Unstage")
8761 .tooltip({
8762 let focus_handle = editor.focus_handle(cx);
8763 move |window, cx| {
8764 Tooltip::for_action_in(
8765 "Unstage Hunk",
8766 &::git::ToggleStaged,
8767 &focus_handle,
8768 window,
8769 cx,
8770 )
8771 }
8772 })
8773 .on_click({
8774 let editor = editor.clone();
8775 move |_event, _, cx| {
8776 editor.update(cx, |editor, cx| {
8777 editor.stage_or_unstage_diff_hunks(
8778 false,
8779 &[hunk_range.start..hunk_range.start],
8780 cx,
8781 );
8782 });
8783 }
8784 }),
8785 )
8786 })
8787 .when(status.secondary != DiffHunkSecondaryStatus::None, |el| {
8788 el.child(
8789 Button::new("stage", "Stage")
8790 .tooltip({
8791 let focus_handle = editor.focus_handle(cx);
8792 move |window, cx| {
8793 Tooltip::for_action_in(
8794 "Stage Hunk",
8795 &::git::ToggleStaged,
8796 &focus_handle,
8797 window,
8798 cx,
8799 )
8800 }
8801 })
8802 .on_click({
8803 let editor = editor.clone();
8804 move |_event, _, cx| {
8805 editor.update(cx, |editor, cx| {
8806 editor.stage_or_unstage_diff_hunks(
8807 true,
8808 &[hunk_range.start..hunk_range.start],
8809 cx,
8810 );
8811 });
8812 }
8813 }),
8814 )
8815 })
8816 .child(
8817 Button::new("discard", "Restore")
8818 .tooltip({
8819 let focus_handle = editor.focus_handle(cx);
8820 move |window, cx| {
8821 Tooltip::for_action_in(
8822 "Restore Hunk",
8823 &::git::Restore,
8824 &focus_handle,
8825 window,
8826 cx,
8827 )
8828 }
8829 })
8830 .on_click({
8831 let editor = editor.clone();
8832 move |_event, window, cx| {
8833 editor.update(cx, |editor, cx| {
8834 let snapshot = editor.snapshot(window, cx);
8835 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8836 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8837 });
8838 }
8839 }),
8840 )
8841 .when(
8842 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8843 |el| {
8844 el.child(
8845 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8846 .shape(IconButtonShape::Square)
8847 .icon_size(IconSize::Small)
8848 // .disabled(!has_multiple_hunks)
8849 .tooltip({
8850 let focus_handle = editor.focus_handle(cx);
8851 move |window, cx| {
8852 Tooltip::for_action_in(
8853 "Next Hunk",
8854 &GoToHunk,
8855 &focus_handle,
8856 window,
8857 cx,
8858 )
8859 }
8860 })
8861 .on_click({
8862 let editor = editor.clone();
8863 move |_event, window, cx| {
8864 editor.update(cx, |editor, cx| {
8865 let snapshot = editor.snapshot(window, cx);
8866 let position =
8867 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8868 editor
8869 .go_to_hunk_after_position(&snapshot, position, window, cx);
8870 editor.expand_selected_diff_hunks(cx);
8871 });
8872 }
8873 }),
8874 )
8875 .child(
8876 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8877 .shape(IconButtonShape::Square)
8878 .icon_size(IconSize::Small)
8879 // .disabled(!has_multiple_hunks)
8880 .tooltip({
8881 let focus_handle = editor.focus_handle(cx);
8882 move |window, cx| {
8883 Tooltip::for_action_in(
8884 "Previous Hunk",
8885 &GoToPrevHunk,
8886 &focus_handle,
8887 window,
8888 cx,
8889 )
8890 }
8891 })
8892 .on_click({
8893 let editor = editor.clone();
8894 move |_event, window, cx| {
8895 editor.update(cx, |editor, cx| {
8896 let snapshot = editor.snapshot(window, cx);
8897 let point =
8898 hunk_range.start.to_point(&snapshot.buffer_snapshot);
8899 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8900 editor.expand_selected_diff_hunks(cx);
8901 });
8902 }
8903 }),
8904 )
8905 },
8906 )
8907 .into_any_element()
8908}