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