1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlineCompletion,
22 JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RevertSelectedHunks, RowExt,
23 RowRangeExt, SelectPhase, Selection, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold,
24 ToggleStagedSelectedDiffHunks, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus};
28use client::ParticipantIndex;
29use collections::{BTreeMap, HashMap, HashSet};
30use file_icons::FileIcons;
31use git::{blame::BlameEntry, Oid};
32use gpui::{
33 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
34 point, px, quad, relative, size, solid_color, svg, transparent_black, Action, AnyElement, App,
35 AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners,
36 CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable, FontId,
37 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
38 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
39 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
40 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
41 WeakEntity, Window,
42};
43use itertools::Itertools;
44use language::{
45 language_settings::{
46 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
47 ShowWhitespaceSetting,
48 },
49 ChunkRendererContext,
50};
51use lsp::DiagnosticSeverity;
52use multi_buffer::{
53 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
54 RowInfo, ToOffset,
55};
56use project::project_settings::{GitGutterSetting, ProjectSettings};
57use settings::Settings;
58use smallvec::{smallvec, SmallVec};
59use std::{
60 any::TypeId,
61 borrow::Cow,
62 cmp::{self, Ordering},
63 fmt::{self, Write},
64 iter, mem,
65 ops::{Deref, Range},
66 rc::Rc,
67 sync::Arc,
68};
69use sum_tree::Bias;
70use text::BufferId;
71use theme::{ActiveTheme, Appearance, PlayerColor};
72use ui::{
73 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
74 POPOVER_Y_PADDING,
75};
76use unicode_segmentation::UnicodeSegmentation;
77use util::{RangeExt, ResultExt};
78use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
79
80const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
81
82#[derive(Debug, Clone, PartialEq, Eq)]
83enum DisplayDiffHunk {
84 Folded {
85 display_row: DisplayRow,
86 },
87 Unfolded {
88 diff_base_byte_range: Range<usize>,
89 display_row_range: Range<DisplayRow>,
90 multi_buffer_range: Range<Anchor>,
91 status: DiffHunkStatus,
92 contains_expanded: bool,
93 },
94}
95
96struct SelectionLayout {
97 head: DisplayPoint,
98 cursor_shape: CursorShape,
99 is_newest: bool,
100 is_local: bool,
101 range: Range<DisplayPoint>,
102 active_rows: Range<DisplayRow>,
103 user_name: Option<SharedString>,
104}
105
106impl SelectionLayout {
107 fn new<T: ToPoint + ToDisplayPoint + Clone>(
108 selection: Selection<T>,
109 line_mode: bool,
110 cursor_shape: CursorShape,
111 map: &DisplaySnapshot,
112 is_newest: bool,
113 is_local: bool,
114 user_name: Option<SharedString>,
115 ) -> Self {
116 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
117 let display_selection = point_selection.map(|p| p.to_display_point(map));
118 let mut range = display_selection.range();
119 let mut head = display_selection.head();
120 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
121 ..map.next_line_boundary(point_selection.end).1.row();
122
123 // vim visual line mode
124 if line_mode {
125 let point_range = map.expand_to_line(point_selection.range());
126 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
127 }
128
129 // any vim visual mode (including line mode)
130 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
131 && !range.is_empty()
132 && !selection.reversed
133 {
134 if head.column() > 0 {
135 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
136 } else if head.row().0 > 0 && head != map.max_point() {
137 head = map.clip_point(
138 DisplayPoint::new(
139 head.row().previous_row(),
140 map.line_len(head.row().previous_row()),
141 ),
142 Bias::Left,
143 );
144 // updating range.end is a no-op unless you're cursor is
145 // on the newline containing a multi-buffer divider
146 // in which case the clip_point may have moved the head up
147 // an additional row.
148 range.end = DisplayPoint::new(head.row().next_row(), 0);
149 active_rows.end = head.row();
150 }
151 }
152
153 Self {
154 head,
155 cursor_shape,
156 is_newest,
157 is_local,
158 range,
159 active_rows,
160 user_name,
161 }
162 }
163}
164
165pub struct EditorElement {
166 editor: Entity<Editor>,
167 style: EditorStyle,
168}
169
170type DisplayRowDelta = u32;
171
172impl EditorElement {
173 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
174
175 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
176 Self {
177 editor: editor.clone(),
178 style,
179 }
180 }
181
182 fn register_actions(&self, window: &mut Window, cx: &mut App) {
183 let editor = &self.editor;
184 editor.update(cx, |editor, cx| {
185 for action in editor.editor_actions.borrow().values() {
186 (action)(window, cx)
187 }
188 });
189
190 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
191 crate::clangd_ext::apply_related_actions(editor, window, cx);
192 register_action(editor, window, Editor::open_context_menu);
193 register_action(editor, window, Editor::move_left);
194 register_action(editor, window, Editor::move_right);
195 register_action(editor, window, Editor::move_down);
196 register_action(editor, window, Editor::move_down_by_lines);
197 register_action(editor, window, Editor::select_down_by_lines);
198 register_action(editor, window, Editor::move_up);
199 register_action(editor, window, Editor::move_up_by_lines);
200 register_action(editor, window, Editor::select_up_by_lines);
201 register_action(editor, window, Editor::select_page_down);
202 register_action(editor, window, Editor::select_page_up);
203 register_action(editor, window, Editor::cancel);
204 register_action(editor, window, Editor::newline);
205 register_action(editor, window, Editor::newline_above);
206 register_action(editor, window, Editor::newline_below);
207 register_action(editor, window, Editor::backspace);
208 register_action(editor, window, Editor::delete);
209 register_action(editor, window, Editor::tab);
210 register_action(editor, window, Editor::tab_prev);
211 register_action(editor, window, Editor::indent);
212 register_action(editor, window, Editor::outdent);
213 register_action(editor, window, Editor::autoindent);
214 register_action(editor, window, Editor::delete_line);
215 register_action(editor, window, Editor::join_lines);
216 register_action(editor, window, Editor::sort_lines_case_sensitive);
217 register_action(editor, window, Editor::sort_lines_case_insensitive);
218 register_action(editor, window, Editor::reverse_lines);
219 register_action(editor, window, Editor::shuffle_lines);
220 register_action(editor, window, Editor::convert_to_upper_case);
221 register_action(editor, window, Editor::convert_to_lower_case);
222 register_action(editor, window, Editor::convert_to_title_case);
223 register_action(editor, window, Editor::convert_to_snake_case);
224 register_action(editor, window, Editor::convert_to_kebab_case);
225 register_action(editor, window, Editor::convert_to_upper_camel_case);
226 register_action(editor, window, Editor::convert_to_lower_camel_case);
227 register_action(editor, window, Editor::convert_to_opposite_case);
228 register_action(editor, window, Editor::delete_to_previous_word_start);
229 register_action(editor, window, Editor::delete_to_previous_subword_start);
230 register_action(editor, window, Editor::delete_to_next_word_end);
231 register_action(editor, window, Editor::delete_to_next_subword_end);
232 register_action(editor, window, Editor::delete_to_beginning_of_line);
233 register_action(editor, window, Editor::delete_to_end_of_line);
234 register_action(editor, window, Editor::cut_to_end_of_line);
235 register_action(editor, window, Editor::duplicate_line_up);
236 register_action(editor, window, Editor::duplicate_line_down);
237 register_action(editor, window, Editor::duplicate_selection);
238 register_action(editor, window, Editor::move_line_up);
239 register_action(editor, window, Editor::move_line_down);
240 register_action(editor, window, Editor::transpose);
241 register_action(editor, window, Editor::rewrap);
242 register_action(editor, window, Editor::cut);
243 register_action(editor, window, Editor::kill_ring_cut);
244 register_action(editor, window, Editor::kill_ring_yank);
245 register_action(editor, window, Editor::copy);
246 register_action(editor, window, Editor::paste);
247 register_action(editor, window, Editor::undo);
248 register_action(editor, window, Editor::redo);
249 register_action(editor, window, Editor::move_page_up);
250 register_action(editor, window, Editor::move_page_down);
251 register_action(editor, window, Editor::next_screen);
252 register_action(editor, window, Editor::scroll_cursor_top);
253 register_action(editor, window, Editor::scroll_cursor_center);
254 register_action(editor, window, Editor::scroll_cursor_bottom);
255 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
256 register_action(editor, window, |editor, _: &LineDown, window, cx| {
257 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
258 });
259 register_action(editor, window, |editor, _: &LineUp, window, cx| {
260 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
261 });
262 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
263 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
264 });
265 register_action(
266 editor,
267 window,
268 |editor, HandleInput(text): &HandleInput, window, cx| {
269 if text.is_empty() {
270 return;
271 }
272 editor.handle_input(text, window, cx);
273 },
274 );
275 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
276 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
277 });
278 register_action(editor, window, |editor, _: &PageDown, window, cx| {
279 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
280 });
281 register_action(editor, window, |editor, _: &PageUp, window, cx| {
282 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
283 });
284 register_action(editor, window, Editor::move_to_previous_word_start);
285 register_action(editor, window, Editor::move_to_previous_subword_start);
286 register_action(editor, window, Editor::move_to_next_word_end);
287 register_action(editor, window, Editor::move_to_next_subword_end);
288 register_action(editor, window, Editor::move_to_beginning_of_line);
289 register_action(editor, window, Editor::move_to_end_of_line);
290 register_action(editor, window, Editor::move_to_start_of_paragraph);
291 register_action(editor, window, Editor::move_to_end_of_paragraph);
292 register_action(editor, window, Editor::move_to_beginning);
293 register_action(editor, window, Editor::move_to_end);
294 register_action(editor, window, Editor::select_up);
295 register_action(editor, window, Editor::select_down);
296 register_action(editor, window, Editor::select_left);
297 register_action(editor, window, Editor::select_right);
298 register_action(editor, window, Editor::select_to_previous_word_start);
299 register_action(editor, window, Editor::select_to_previous_subword_start);
300 register_action(editor, window, Editor::select_to_next_word_end);
301 register_action(editor, window, Editor::select_to_next_subword_end);
302 register_action(editor, window, Editor::select_to_beginning_of_line);
303 register_action(editor, window, Editor::select_to_end_of_line);
304 register_action(editor, window, Editor::select_to_start_of_paragraph);
305 register_action(editor, window, Editor::select_to_end_of_paragraph);
306 register_action(editor, window, Editor::select_to_beginning);
307 register_action(editor, window, Editor::select_to_end);
308 register_action(editor, window, Editor::select_all);
309 register_action(editor, window, |editor, action, window, cx| {
310 editor.select_all_matches(action, window, cx).log_err();
311 });
312 register_action(editor, window, Editor::select_line);
313 register_action(editor, window, Editor::split_selection_into_lines);
314 register_action(editor, window, Editor::add_selection_above);
315 register_action(editor, window, Editor::add_selection_below);
316 register_action(editor, window, |editor, action, window, cx| {
317 editor.select_next(action, window, cx).log_err();
318 });
319 register_action(editor, window, |editor, action, window, cx| {
320 editor.select_previous(action, window, cx).log_err();
321 });
322 register_action(editor, window, Editor::toggle_comments);
323 register_action(editor, window, Editor::select_larger_syntax_node);
324 register_action(editor, window, Editor::select_smaller_syntax_node);
325 register_action(editor, window, Editor::select_enclosing_symbol);
326 register_action(editor, window, Editor::move_to_enclosing_bracket);
327 register_action(editor, window, Editor::undo_selection);
328 register_action(editor, window, Editor::redo_selection);
329 if !editor.read(cx).is_singleton(cx) {
330 register_action(editor, window, Editor::expand_excerpts);
331 register_action(editor, window, Editor::expand_excerpts_up);
332 register_action(editor, window, Editor::expand_excerpts_down);
333 }
334 register_action(editor, window, Editor::go_to_diagnostic);
335 register_action(editor, window, Editor::go_to_prev_diagnostic);
336 register_action(editor, window, Editor::go_to_next_hunk);
337 register_action(editor, window, Editor::go_to_prev_hunk);
338 register_action(editor, window, |editor, action, window, cx| {
339 editor
340 .go_to_definition(action, window, cx)
341 .detach_and_log_err(cx);
342 });
343 register_action(editor, window, |editor, action, window, cx| {
344 editor
345 .go_to_definition_split(action, window, cx)
346 .detach_and_log_err(cx);
347 });
348 register_action(editor, window, |editor, action, window, cx| {
349 editor
350 .go_to_declaration(action, window, cx)
351 .detach_and_log_err(cx);
352 });
353 register_action(editor, window, |editor, action, window, cx| {
354 editor
355 .go_to_declaration_split(action, window, cx)
356 .detach_and_log_err(cx);
357 });
358 register_action(editor, window, |editor, action, window, cx| {
359 editor
360 .go_to_implementation(action, window, cx)
361 .detach_and_log_err(cx);
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor
365 .go_to_implementation_split(action, window, cx)
366 .detach_and_log_err(cx);
367 });
368 register_action(editor, window, |editor, action, window, cx| {
369 editor
370 .go_to_type_definition(action, window, cx)
371 .detach_and_log_err(cx);
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor
375 .go_to_type_definition_split(action, window, cx)
376 .detach_and_log_err(cx);
377 });
378 register_action(editor, window, Editor::open_url);
379 register_action(editor, window, Editor::open_selected_filename);
380 register_action(editor, window, Editor::fold);
381 register_action(editor, window, Editor::fold_at_level);
382 register_action(editor, window, Editor::fold_all);
383 register_action(editor, window, Editor::fold_function_bodies);
384 register_action(editor, window, Editor::fold_at);
385 register_action(editor, window, Editor::fold_recursive);
386 register_action(editor, window, Editor::toggle_fold);
387 register_action(editor, window, Editor::toggle_fold_recursive);
388 register_action(editor, window, Editor::unfold_lines);
389 register_action(editor, window, Editor::unfold_recursive);
390 register_action(editor, window, Editor::unfold_all);
391 register_action(editor, window, Editor::unfold_at);
392 register_action(editor, window, Editor::fold_selected_ranges);
393 register_action(editor, window, Editor::set_mark);
394 register_action(editor, window, Editor::swap_selection_ends);
395 register_action(editor, window, Editor::show_completions);
396 register_action(editor, window, Editor::toggle_code_actions);
397 register_action(editor, window, Editor::open_excerpts);
398 register_action(editor, window, Editor::open_excerpts_in_split);
399 register_action(editor, window, Editor::open_proposed_changes_editor);
400 register_action(editor, window, Editor::toggle_soft_wrap);
401 register_action(editor, window, Editor::toggle_tab_bar);
402 register_action(editor, window, Editor::toggle_line_numbers);
403 register_action(editor, window, Editor::toggle_relative_line_numbers);
404 register_action(editor, window, Editor::toggle_indent_guides);
405 register_action(editor, window, Editor::toggle_inlay_hints);
406 register_action(editor, window, Editor::toggle_inline_completions);
407 register_action(editor, window, hover_popover::hover);
408 register_action(editor, window, Editor::reveal_in_finder);
409 register_action(editor, window, Editor::copy_path);
410 register_action(editor, window, Editor::copy_relative_path);
411 register_action(editor, window, Editor::copy_file_name);
412 register_action(editor, window, Editor::copy_file_name_without_extension);
413 register_action(editor, window, Editor::copy_highlight_json);
414 register_action(editor, window, Editor::copy_permalink_to_line);
415 register_action(editor, window, Editor::open_permalink_to_line);
416 register_action(editor, window, Editor::copy_file_location);
417 register_action(editor, window, Editor::toggle_git_blame);
418 register_action(editor, window, Editor::toggle_git_blame_inline);
419 register_action(editor, window, Editor::toggle_selected_diff_hunks);
420 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
421 register_action(editor, window, Editor::expand_all_diff_hunks);
422
423 register_action(editor, window, |editor, action, window, cx| {
424 if let Some(task) = editor.format(action, window, cx) {
425 task.detach_and_notify_err(window, cx);
426 } else {
427 cx.propagate();
428 }
429 });
430 register_action(editor, window, |editor, action, window, cx| {
431 if let Some(task) = editor.format_selections(action, window, cx) {
432 task.detach_and_notify_err(window, cx);
433 } else {
434 cx.propagate();
435 }
436 });
437 register_action(editor, window, Editor::restart_language_server);
438 register_action(editor, window, Editor::show_character_palette);
439 register_action(editor, window, |editor, action, window, cx| {
440 if let Some(task) = editor.confirm_completion(action, window, cx) {
441 task.detach_and_notify_err(window, cx);
442 } else {
443 cx.propagate();
444 }
445 });
446 register_action(editor, window, |editor, action, window, cx| {
447 if let Some(task) = editor.compose_completion(action, window, cx) {
448 task.detach_and_notify_err(window, cx);
449 } else {
450 cx.propagate();
451 }
452 });
453 register_action(editor, window, |editor, action, window, cx| {
454 if let Some(task) = editor.confirm_code_action(action, window, cx) {
455 task.detach_and_notify_err(window, cx);
456 } else {
457 cx.propagate();
458 }
459 });
460 register_action(editor, window, |editor, action, window, cx| {
461 if let Some(task) = editor.rename(action, window, cx) {
462 task.detach_and_notify_err(window, cx);
463 } else {
464 cx.propagate();
465 }
466 });
467 register_action(editor, window, |editor, action, window, cx| {
468 if let Some(task) = editor.confirm_rename(action, window, cx) {
469 task.detach_and_notify_err(window, cx);
470 } else {
471 cx.propagate();
472 }
473 });
474 register_action(editor, window, |editor, action, window, cx| {
475 if let Some(task) = editor.find_all_references(action, window, cx) {
476 task.detach_and_log_err(cx);
477 } else {
478 cx.propagate();
479 }
480 });
481 register_action(editor, window, Editor::show_signature_help);
482 register_action(editor, window, Editor::next_edit_prediction);
483 register_action(editor, window, Editor::previous_edit_prediction);
484 register_action(editor, window, Editor::show_inline_completion);
485 register_action(editor, window, Editor::context_menu_first);
486 register_action(editor, window, Editor::context_menu_prev);
487 register_action(editor, window, Editor::context_menu_next);
488 register_action(editor, window, Editor::context_menu_last);
489 register_action(editor, window, Editor::display_cursor_names);
490 register_action(editor, window, Editor::unique_lines_case_insensitive);
491 register_action(editor, window, Editor::unique_lines_case_sensitive);
492 register_action(editor, window, Editor::accept_partial_inline_completion);
493 register_action(editor, window, Editor::accept_edit_prediction);
494 register_action(editor, window, Editor::revert_file);
495 register_action(editor, window, Editor::revert_selected_hunks);
496 register_action(editor, window, Editor::apply_all_diff_hunks);
497 register_action(editor, window, Editor::apply_selected_diff_hunks);
498 register_action(editor, window, Editor::open_active_item_in_terminal);
499 register_action(editor, window, Editor::reload_file);
500 register_action(editor, window, Editor::spawn_nearest_task);
501 register_action(editor, window, Editor::insert_uuid_v4);
502 register_action(editor, window, Editor::insert_uuid_v7);
503 register_action(editor, window, Editor::open_selections_in_multibuffer);
504 }
505
506 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
507 let position_map = layout.position_map.clone();
508 window.on_key_event({
509 let editor = self.editor.clone();
510 move |event: &ModifiersChangedEvent, phase, window, cx| {
511 if phase != DispatchPhase::Bubble {
512 return;
513 }
514 editor.update(cx, |editor, cx| {
515 if editor.hover_state.focused(window, cx) {
516 return;
517 }
518 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
519 })
520 }
521 });
522 }
523
524 fn mouse_left_down(
525 editor: &mut Editor,
526 event: &MouseDownEvent,
527 hovered_hunk: Option<Range<Anchor>>,
528 position_map: &PositionMap,
529 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
530 window: &mut Window,
531 cx: &mut Context<Editor>,
532 ) {
533 if window.default_prevented() {
534 return;
535 }
536
537 let text_hitbox = &position_map.text_hitbox;
538 let gutter_hitbox = &position_map.gutter_hitbox;
539 let mut click_count = event.click_count;
540 let mut modifiers = event.modifiers;
541
542 if let Some(hovered_hunk) = hovered_hunk {
543 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
544 cx.notify();
545 return;
546 } else if gutter_hitbox.is_hovered(window) {
547 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
548 } else if !text_hitbox.is_hovered(window) {
549 return;
550 }
551
552 let is_singleton = editor.buffer().read(cx).is_singleton();
553
554 if click_count == 2 && !is_singleton {
555 match EditorSettings::get_global(cx).double_click_in_multibuffer {
556 DoubleClickInMultibuffer::Select => {
557 // do nothing special on double click, all selection logic is below
558 }
559 DoubleClickInMultibuffer::Open => {
560 if modifiers.alt {
561 // if double click is made with alt, pretend it's a regular double click without opening and alt,
562 // and run the selection logic.
563 modifiers.alt = false;
564 } else {
565 let scroll_position_row =
566 position_map.scroll_pixel_position.y / position_map.line_height;
567 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
568 + position_map.scroll_pixel_position.y)
569 / position_map.line_height)
570 as u32;
571 let multi_buffer_row = position_map
572 .snapshot
573 .display_point_to_point(
574 DisplayPoint::new(DisplayRow(display_row), 0),
575 Bias::Right,
576 )
577 .row;
578 let line_offset_from_top = display_row - scroll_position_row as u32;
579 // if double click is made without alt, open the corresponding excerp
580 editor.open_excerpts_common(
581 Some(JumpData::MultiBufferRow {
582 row: MultiBufferRow(multi_buffer_row),
583 line_offset_from_top,
584 }),
585 false,
586 window,
587 cx,
588 );
589 return;
590 }
591 }
592 }
593 }
594
595 let point_for_position = position_map.point_for_position(event.position);
596 let position = point_for_position.previous_valid;
597 if modifiers.shift && modifiers.alt {
598 editor.select(
599 SelectPhase::BeginColumnar {
600 position,
601 reset: false,
602 goal_column: point_for_position.exact_unclipped.column(),
603 },
604 window,
605 cx,
606 );
607 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
608 {
609 editor.select(
610 SelectPhase::Extend {
611 position,
612 click_count,
613 },
614 window,
615 cx,
616 );
617 } else {
618 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
619 let multi_cursor_modifier = match multi_cursor_setting {
620 MultiCursorModifier::Alt => modifiers.alt,
621 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
622 };
623 editor.select(
624 SelectPhase::Begin {
625 position,
626 add: multi_cursor_modifier,
627 click_count,
628 },
629 window,
630 cx,
631 );
632 }
633 cx.stop_propagation();
634
635 if !is_singleton {
636 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
637 + position_map.scroll_pixel_position.y)
638 / position_map.line_height) as u32;
639 let multi_buffer_row = position_map
640 .snapshot
641 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
642 .row;
643 if line_numbers
644 .get(&MultiBufferRow(multi_buffer_row))
645 .and_then(|line_number| line_number.hitbox.as_ref())
646 .is_some_and(|hitbox| hitbox.contains(&event.position))
647 {
648 let scroll_position_row =
649 position_map.scroll_pixel_position.y / position_map.line_height;
650 let line_offset_from_top = display_row - scroll_position_row as u32;
651
652 editor.open_excerpts_common(
653 Some(JumpData::MultiBufferRow {
654 row: MultiBufferRow(multi_buffer_row),
655 line_offset_from_top,
656 }),
657 modifiers.alt,
658 window,
659 cx,
660 );
661 cx.stop_propagation();
662 }
663 }
664 }
665
666 fn mouse_right_down(
667 editor: &mut Editor,
668 event: &MouseDownEvent,
669 position_map: &PositionMap,
670 window: &mut Window,
671 cx: &mut Context<Editor>,
672 ) {
673 if !position_map.text_hitbox.is_hovered(window) {
674 return;
675 }
676 let point_for_position = position_map.point_for_position(event.position);
677 mouse_context_menu::deploy_context_menu(
678 editor,
679 Some(event.position),
680 point_for_position.previous_valid,
681 window,
682 cx,
683 );
684 cx.stop_propagation();
685 }
686
687 fn mouse_middle_down(
688 editor: &mut Editor,
689 event: &MouseDownEvent,
690 position_map: &PositionMap,
691 window: &mut Window,
692 cx: &mut Context<Editor>,
693 ) {
694 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
695 return;
696 }
697
698 let point_for_position = position_map.point_for_position(event.position);
699 let position = point_for_position.previous_valid;
700
701 editor.select(
702 SelectPhase::BeginColumnar {
703 position,
704 reset: true,
705 goal_column: point_for_position.exact_unclipped.column(),
706 },
707 window,
708 cx,
709 );
710 }
711
712 fn mouse_up(
713 editor: &mut Editor,
714 event: &MouseUpEvent,
715 position_map: &PositionMap,
716 window: &mut Window,
717 cx: &mut Context<Editor>,
718 ) {
719 let text_hitbox = &position_map.text_hitbox;
720 let end_selection = editor.has_pending_selection();
721 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
722
723 if end_selection {
724 editor.select(SelectPhase::End, window, cx);
725 }
726
727 if end_selection && pending_nonempty_selections {
728 cx.stop_propagation();
729 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
730 && event.button == MouseButton::Middle
731 {
732 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
733 return;
734 }
735
736 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
737 if EditorSettings::get_global(cx).middle_click_paste {
738 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
739 let point_for_position = position_map.point_for_position(event.position);
740 let position = point_for_position.previous_valid;
741
742 editor.select(
743 SelectPhase::Begin {
744 position,
745 add: false,
746 click_count: 1,
747 },
748 window,
749 cx,
750 );
751 editor.insert(&text, window, cx);
752 }
753 cx.stop_propagation()
754 }
755 }
756 }
757
758 fn click(
759 editor: &mut Editor,
760 event: &ClickEvent,
761 position_map: &PositionMap,
762 window: &mut Window,
763 cx: &mut Context<Editor>,
764 ) {
765 let text_hitbox = &position_map.text_hitbox;
766 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
767
768 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
769 let multi_cursor_modifier = match multi_cursor_setting {
770 MultiCursorModifier::Alt => event.modifiers().secondary(),
771 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
772 };
773
774 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
775 let point = position_map.point_for_position(event.up.position);
776 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
777
778 cx.stop_propagation();
779 }
780 }
781
782 fn mouse_dragged(
783 editor: &mut Editor,
784 event: &MouseMoveEvent,
785 position_map: &PositionMap,
786 window: &mut Window,
787 cx: &mut Context<Editor>,
788 ) {
789 if !editor.has_pending_selection() {
790 return;
791 }
792
793 let text_bounds = position_map.text_hitbox.bounds;
794 let point_for_position = position_map.point_for_position(event.position);
795 let mut scroll_delta = gpui::Point::<f32>::default();
796 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
797 let top = text_bounds.origin.y + vertical_margin;
798 let bottom = text_bounds.bottom_left().y - vertical_margin;
799 if event.position.y < top {
800 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
801 }
802 if event.position.y > bottom {
803 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
804 }
805
806 // We need horizontal width of text
807 let style = editor.style.clone().unwrap_or_default();
808 let font_id = window.text_system().resolve_font(&style.text.font());
809 let font_size = style.text.font_size.to_pixels(window.rem_size());
810 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
811
812 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
813
814 let scroll_space: Pixels = scroll_margin_x * em_width;
815
816 let left = text_bounds.origin.x + scroll_space;
817 let right = text_bounds.top_right().x - scroll_space;
818
819 if event.position.x < left {
820 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
821 }
822 if event.position.x > right {
823 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
824 }
825
826 editor.select(
827 SelectPhase::Update {
828 position: point_for_position.previous_valid,
829 goal_column: point_for_position.exact_unclipped.column(),
830 scroll_delta,
831 },
832 window,
833 cx,
834 );
835 }
836
837 fn mouse_moved(
838 editor: &mut Editor,
839 event: &MouseMoveEvent,
840 position_map: &PositionMap,
841 window: &mut Window,
842 cx: &mut Context<Editor>,
843 ) {
844 let text_hitbox = &position_map.text_hitbox;
845 let gutter_hitbox = &position_map.gutter_hitbox;
846 let modifiers = event.modifiers;
847 let gutter_hovered = gutter_hitbox.is_hovered(window);
848 editor.set_gutter_hovered(gutter_hovered, cx);
849
850 // Don't trigger hover popover if mouse is hovering over context menu
851 if text_hitbox.is_hovered(window) {
852 let point_for_position = position_map.point_for_position(event.position);
853
854 editor.update_hovered_link(
855 point_for_position,
856 &position_map.snapshot,
857 modifiers,
858 window,
859 cx,
860 );
861
862 if let Some(point) = point_for_position.as_valid() {
863 let anchor = position_map
864 .snapshot
865 .buffer_snapshot
866 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
867 hover_at(editor, Some(anchor), window, cx);
868 Self::update_visible_cursor(editor, point, position_map, window, cx);
869 } else {
870 hover_at(editor, None, window, cx);
871 }
872 } else {
873 editor.hide_hovered_link(cx);
874 hover_at(editor, None, window, cx);
875 if gutter_hovered {
876 cx.stop_propagation();
877 }
878 }
879 }
880
881 fn update_visible_cursor(
882 editor: &mut Editor,
883 point: DisplayPoint,
884 position_map: &PositionMap,
885 window: &mut Window,
886 cx: &mut Context<Editor>,
887 ) {
888 let snapshot = &position_map.snapshot;
889 let Some(hub) = editor.collaboration_hub() else {
890 return;
891 };
892 let start = snapshot.display_snapshot.clip_point(
893 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
894 Bias::Left,
895 );
896 let end = snapshot.display_snapshot.clip_point(
897 DisplayPoint::new(
898 point.row(),
899 (point.column() + 1).min(snapshot.line_len(point.row())),
900 ),
901 Bias::Right,
902 );
903
904 let range = snapshot
905 .buffer_snapshot
906 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
907 ..snapshot
908 .buffer_snapshot
909 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
910
911 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
912 return;
913 };
914 let key = crate::HoveredCursor {
915 replica_id: selection.replica_id,
916 selection_id: selection.selection.id,
917 };
918 editor.hovered_cursors.insert(
919 key.clone(),
920 cx.spawn_in(window, |editor, mut cx| async move {
921 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
922 editor
923 .update(&mut cx, |editor, cx| {
924 editor.hovered_cursors.remove(&key);
925 cx.notify();
926 })
927 .ok();
928 }),
929 );
930 cx.notify()
931 }
932
933 #[allow(clippy::too_many_arguments)]
934 fn layout_selections(
935 &self,
936 start_anchor: Anchor,
937 end_anchor: Anchor,
938 local_selections: &[Selection<Point>],
939 snapshot: &EditorSnapshot,
940 start_row: DisplayRow,
941 end_row: DisplayRow,
942 window: &mut Window,
943 cx: &mut App,
944 ) -> (
945 Vec<(PlayerColor, Vec<SelectionLayout>)>,
946 BTreeMap<DisplayRow, bool>,
947 Option<DisplayPoint>,
948 ) {
949 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
950 let mut active_rows = BTreeMap::new();
951 let mut newest_selection_head = None;
952 self.editor.update(cx, |editor, cx| {
953 if editor.show_local_selections {
954 let mut layouts = Vec::new();
955 let newest = editor.selections.newest(cx);
956 for selection in local_selections.iter().cloned() {
957 let is_empty = selection.start == selection.end;
958 let is_newest = selection == newest;
959
960 let layout = SelectionLayout::new(
961 selection,
962 editor.selections.line_mode,
963 editor.cursor_shape,
964 &snapshot.display_snapshot,
965 is_newest,
966 editor.leader_peer_id.is_none(),
967 None,
968 );
969 if is_newest {
970 newest_selection_head = Some(layout.head);
971 }
972
973 for row in cmp::max(layout.active_rows.start.0, start_row.0)
974 ..=cmp::min(layout.active_rows.end.0, end_row.0)
975 {
976 let contains_non_empty_selection =
977 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
978 *contains_non_empty_selection |= !is_empty;
979 }
980 layouts.push(layout);
981 }
982
983 let player = editor.current_user_player_color(cx);
984 selections.push((player, layouts));
985 }
986
987 if let Some(collaboration_hub) = &editor.collaboration_hub {
988 // When following someone, render the local selections in their color.
989 if let Some(leader_id) = editor.leader_peer_id {
990 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
991 {
992 if let Some(participant_index) = collaboration_hub
993 .user_participant_indices(cx)
994 .get(&collaborator.user_id)
995 {
996 if let Some((local_selection_style, _)) = selections.first_mut() {
997 *local_selection_style = cx
998 .theme()
999 .players()
1000 .color_for_participant(participant_index.0);
1001 }
1002 }
1003 }
1004 }
1005
1006 let mut remote_selections = HashMap::default();
1007 for selection in snapshot.remote_selections_in_range(
1008 &(start_anchor..end_anchor),
1009 collaboration_hub.as_ref(),
1010 cx,
1011 ) {
1012 let selection_style =
1013 Self::get_participant_color(selection.participant_index, cx);
1014
1015 // Don't re-render the leader's selections, since the local selections
1016 // match theirs.
1017 if Some(selection.peer_id) == editor.leader_peer_id {
1018 continue;
1019 }
1020 let key = HoveredCursor {
1021 replica_id: selection.replica_id,
1022 selection_id: selection.selection.id,
1023 };
1024
1025 let is_shown =
1026 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1027
1028 remote_selections
1029 .entry(selection.replica_id)
1030 .or_insert((selection_style, Vec::new()))
1031 .1
1032 .push(SelectionLayout::new(
1033 selection.selection,
1034 selection.line_mode,
1035 selection.cursor_shape,
1036 &snapshot.display_snapshot,
1037 false,
1038 false,
1039 if is_shown { selection.user_name } else { None },
1040 ));
1041 }
1042
1043 selections.extend(remote_selections.into_values());
1044 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1045 let layouts = snapshot
1046 .buffer_snapshot
1047 .selections_in_range(&(start_anchor..end_anchor), true)
1048 .map(move |(_, line_mode, cursor_shape, selection)| {
1049 SelectionLayout::new(
1050 selection,
1051 line_mode,
1052 cursor_shape,
1053 &snapshot.display_snapshot,
1054 false,
1055 false,
1056 None,
1057 )
1058 })
1059 .collect::<Vec<_>>();
1060 let player = editor.current_user_player_color(cx);
1061 selections.push((player, layouts));
1062 }
1063 });
1064 (selections, active_rows, newest_selection_head)
1065 }
1066
1067 fn collect_cursors(
1068 &self,
1069 snapshot: &EditorSnapshot,
1070 cx: &mut App,
1071 ) -> Vec<(DisplayPoint, Hsla)> {
1072 let editor = self.editor.read(cx);
1073 let mut cursors = Vec::new();
1074 let mut skip_local = false;
1075 let mut add_cursor = |anchor: Anchor, color| {
1076 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1077 };
1078 // Remote cursors
1079 if let Some(collaboration_hub) = &editor.collaboration_hub {
1080 for remote_selection in snapshot.remote_selections_in_range(
1081 &(Anchor::min()..Anchor::max()),
1082 collaboration_hub.deref(),
1083 cx,
1084 ) {
1085 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1086 add_cursor(remote_selection.selection.head(), color.cursor);
1087 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1088 skip_local = true;
1089 }
1090 }
1091 }
1092 // Local cursors
1093 if !skip_local {
1094 let color = cx.theme().players().local().cursor;
1095 editor.selections.disjoint.iter().for_each(|selection| {
1096 add_cursor(selection.head(), color);
1097 });
1098 if let Some(ref selection) = editor.selections.pending_anchor() {
1099 add_cursor(selection.head(), color);
1100 }
1101 }
1102 cursors
1103 }
1104
1105 #[allow(clippy::too_many_arguments)]
1106 fn layout_visible_cursors(
1107 &self,
1108 snapshot: &EditorSnapshot,
1109 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1110 block_start_rows: &HashSet<DisplayRow>,
1111 visible_display_row_range: Range<DisplayRow>,
1112 line_layouts: &[LineWithInvisibles],
1113 text_hitbox: &Hitbox,
1114 content_origin: gpui::Point<Pixels>,
1115 scroll_position: gpui::Point<f32>,
1116 scroll_pixel_position: gpui::Point<Pixels>,
1117 line_height: Pixels,
1118 em_width: Pixels,
1119 em_advance: Pixels,
1120 autoscroll_containing_element: bool,
1121 window: &mut Window,
1122 cx: &mut App,
1123 ) -> Vec<CursorLayout> {
1124 let mut autoscroll_bounds = None;
1125 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1126 let mut cursors = Vec::new();
1127
1128 let show_local_cursors = editor.show_local_cursors(window, cx);
1129
1130 for (player_color, selections) in selections {
1131 for selection in selections {
1132 let cursor_position = selection.head;
1133
1134 let in_range = visible_display_row_range.contains(&cursor_position.row());
1135 if (selection.is_local && !show_local_cursors)
1136 || !in_range
1137 || block_start_rows.contains(&cursor_position.row())
1138 {
1139 continue;
1140 }
1141
1142 let cursor_row_layout = &line_layouts
1143 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1144 let cursor_column = cursor_position.column() as usize;
1145
1146 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1147 let mut block_width =
1148 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1149 if block_width == Pixels::ZERO {
1150 block_width = em_advance;
1151 }
1152 let block_text = if let CursorShape::Block = selection.cursor_shape {
1153 snapshot
1154 .grapheme_at(cursor_position)
1155 .or_else(|| {
1156 if cursor_column == 0 {
1157 snapshot.placeholder_text().and_then(|s| {
1158 s.graphemes(true).next().map(|s| s.to_string().into())
1159 })
1160 } else {
1161 None
1162 }
1163 })
1164 .and_then(|text| {
1165 let len = text.len();
1166
1167 let font = cursor_row_layout
1168 .font_id_for_index(cursor_column)
1169 .and_then(|cursor_font_id| {
1170 window.text_system().get_font_for_id(cursor_font_id)
1171 })
1172 .unwrap_or(self.style.text.font());
1173
1174 // Invert the text color for the block cursor. Ensure that the text
1175 // color is opaque enough to be visible against the background color.
1176 //
1177 // 0.75 is an arbitrary threshold to determine if the background color is
1178 // opaque enough to use as a text color.
1179 //
1180 // TODO: In the future we should ensure themes have a `text_inverse` color.
1181 let color = if cx.theme().colors().editor_background.a < 0.75 {
1182 match cx.theme().appearance {
1183 Appearance::Dark => Hsla::black(),
1184 Appearance::Light => Hsla::white(),
1185 }
1186 } else {
1187 cx.theme().colors().editor_background
1188 };
1189
1190 window
1191 .text_system()
1192 .shape_line(
1193 text,
1194 cursor_row_layout.font_size,
1195 &[TextRun {
1196 len,
1197 font,
1198 color,
1199 background_color: None,
1200 strikethrough: None,
1201 underline: None,
1202 }],
1203 )
1204 .log_err()
1205 })
1206 } else {
1207 None
1208 };
1209
1210 let x = cursor_character_x - scroll_pixel_position.x;
1211 let y = (cursor_position.row().as_f32()
1212 - scroll_pixel_position.y / line_height)
1213 * line_height;
1214 if selection.is_newest {
1215 editor.pixel_position_of_newest_cursor = Some(point(
1216 text_hitbox.origin.x + x + block_width / 2.,
1217 text_hitbox.origin.y + y + line_height / 2.,
1218 ));
1219
1220 if autoscroll_containing_element {
1221 let top = text_hitbox.origin.y
1222 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1223 * line_height;
1224 let left = text_hitbox.origin.x
1225 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1226 .max(0.)
1227 * em_width;
1228
1229 let bottom = text_hitbox.origin.y
1230 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1231 * line_height;
1232 let right = text_hitbox.origin.x
1233 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1234 * em_width;
1235
1236 autoscroll_bounds =
1237 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1238 }
1239 }
1240
1241 let mut cursor = CursorLayout {
1242 color: player_color.cursor,
1243 block_width,
1244 origin: point(x, y),
1245 line_height,
1246 shape: selection.cursor_shape,
1247 block_text,
1248 cursor_name: None,
1249 };
1250 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1251 string: name,
1252 color: self.style.background,
1253 is_top_row: cursor_position.row().0 == 0,
1254 });
1255 cursor.layout(content_origin, cursor_name, window, cx);
1256 cursors.push(cursor);
1257 }
1258 }
1259
1260 cursors
1261 });
1262
1263 if let Some(bounds) = autoscroll_bounds {
1264 window.request_autoscroll(bounds);
1265 }
1266
1267 cursor_layouts
1268 }
1269
1270 fn layout_scrollbars(
1271 &self,
1272 snapshot: &EditorSnapshot,
1273 scrollbar_range_data: ScrollbarRangeData,
1274 scroll_position: gpui::Point<f32>,
1275 non_visible_cursors: bool,
1276 window: &mut Window,
1277 cx: &mut App,
1278 ) -> AxisPair<Option<ScrollbarLayout>> {
1279 let letter_size = scrollbar_range_data.letter_size;
1280 let text_units_per_page = axis_pair(
1281 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1282 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1283 );
1284
1285 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1286 let show_scrollbars = self.editor.read(cx).show_scrollbars
1287 && match scrollbar_settings.show {
1288 ShowScrollbar::Auto => {
1289 let editor = self.editor.read(cx);
1290 let is_singleton = editor.is_singleton(cx);
1291 // Git
1292 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1293 ||
1294 // Buffer Search Results
1295 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1296 ||
1297 // Selected Symbol Occurrences
1298 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1299 ||
1300 // Diagnostics
1301 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1302 ||
1303 // Cursors out of sight
1304 non_visible_cursors
1305 ||
1306 // Scrollmanager
1307 editor.scroll_manager.scrollbars_visible()
1308 }
1309 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1310 ShowScrollbar::Always => true,
1311 ShowScrollbar::Never => false,
1312 };
1313
1314 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1315
1316 if snapshot.mode != EditorMode::Full {
1317 return axis_pair(None, None);
1318 }
1319
1320 let visible_range = axis_pair(
1321 axes.horizontal
1322 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1323 axes.vertical
1324 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1325 );
1326
1327 // If a drag took place after we started dragging the scrollbar,
1328 // cancel the scrollbar drag.
1329 if cx.has_active_drag() {
1330 self.editor.update(cx, |editor, cx| {
1331 editor
1332 .scroll_manager
1333 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1334 editor
1335 .scroll_manager
1336 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1337 });
1338 }
1339
1340 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1341
1342 let track_bounds = axis_pair(
1343 axes.horizontal.then(|| {
1344 Bounds::from_corners(
1345 point(
1346 text_bounds.bottom_left().x,
1347 text_bounds.bottom_left().y - self.style.scrollbar_width,
1348 ),
1349 point(
1350 text_bounds.bottom_right().x
1351 - if axes.vertical {
1352 self.style.scrollbar_width
1353 } else {
1354 px(0.)
1355 },
1356 text_bounds.bottom_right().y,
1357 ),
1358 )
1359 }),
1360 axes.vertical.then(|| {
1361 Bounds::from_corners(
1362 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1363 text_bounds.bottom_right(),
1364 )
1365 }),
1366 );
1367
1368 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1369 let total_text_units = axis_pair(
1370 Some(scroll_range_size.width / letter_size.width),
1371 Some(scroll_range_size.height / letter_size.height),
1372 );
1373
1374 let thumb_size = axis_pair(
1375 total_text_units
1376 .horizontal
1377 .zip(track_bounds.horizontal)
1378 .and_then(|(total_text_units_x, track_bounds_x)| {
1379 if text_units_per_page.horizontal >= total_text_units_x {
1380 return None;
1381 }
1382
1383 let thumb_percent =
1384 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1385
1386 Some(track_bounds_x.size.width * thumb_percent)
1387 }),
1388 total_text_units.vertical.zip(track_bounds.vertical).map(
1389 |(total_text_units_y, track_bounds_y)| {
1390 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1391
1392 track_bounds_y.size.height * thumb_percent
1393 },
1394 ),
1395 );
1396
1397 // NOTE: Space not taken by track bounds divided by text units not on screen
1398 let text_unit_size = axis_pair(
1399 thumb_size
1400 .horizontal
1401 .zip(track_bounds.horizontal)
1402 .zip(total_text_units.horizontal)
1403 .map(|((thumb_size, track_bounds), total_text_units)| {
1404 (track_bounds.size.width - thumb_size)
1405 / (total_text_units - text_units_per_page.horizontal).max(0.)
1406 }),
1407 thumb_size
1408 .vertical
1409 .zip(track_bounds.vertical)
1410 .zip(total_text_units.vertical)
1411 .map(|((thumb_size, track_bounds), total_text_units)| {
1412 (track_bounds.size.height - thumb_size)
1413 / (total_text_units - text_units_per_page.vertical).max(0.)
1414 }),
1415 );
1416
1417 let horizontal_scrollbar = track_bounds
1418 .horizontal
1419 .zip(visible_range.horizontal)
1420 .zip(text_unit_size.horizontal)
1421 .zip(thumb_size.horizontal)
1422 .map(
1423 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1424 hitbox: window.insert_hitbox(track_bounds, false),
1425 visible_range,
1426 text_unit_size,
1427 visible: show_scrollbars,
1428 thumb_size,
1429 axis: Axis::Horizontal,
1430 },
1431 );
1432
1433 let vertical_scrollbar = track_bounds
1434 .vertical
1435 .zip(visible_range.vertical)
1436 .zip(text_unit_size.vertical)
1437 .zip(thumb_size.vertical)
1438 .map(
1439 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1440 hitbox: window.insert_hitbox(track_bounds, false),
1441 visible_range,
1442 text_unit_size,
1443 visible: show_scrollbars,
1444 thumb_size,
1445 axis: Axis::Vertical,
1446 },
1447 );
1448
1449 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1450 }
1451
1452 #[allow(clippy::too_many_arguments)]
1453 fn prepaint_crease_toggles(
1454 &self,
1455 crease_toggles: &mut [Option<AnyElement>],
1456 line_height: Pixels,
1457 gutter_dimensions: &GutterDimensions,
1458 gutter_settings: crate::editor_settings::Gutter,
1459 scroll_pixel_position: gpui::Point<Pixels>,
1460 gutter_hitbox: &Hitbox,
1461 window: &mut Window,
1462 cx: &mut App,
1463 ) {
1464 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1465 if let Some(crease_toggle) = crease_toggle {
1466 debug_assert!(gutter_settings.folds);
1467 let available_space = size(
1468 AvailableSpace::MinContent,
1469 AvailableSpace::Definite(line_height * 0.55),
1470 );
1471 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1472
1473 let position = point(
1474 gutter_dimensions.width - gutter_dimensions.right_padding,
1475 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1476 );
1477 let centering_offset = point(
1478 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1479 (line_height - crease_toggle_size.height) / 2.,
1480 );
1481 let origin = gutter_hitbox.origin + position + centering_offset;
1482 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1483 }
1484 }
1485 }
1486
1487 #[allow(clippy::too_many_arguments)]
1488 fn prepaint_crease_trailers(
1489 &self,
1490 trailers: Vec<Option<AnyElement>>,
1491 lines: &[LineWithInvisibles],
1492 line_height: Pixels,
1493 content_origin: gpui::Point<Pixels>,
1494 scroll_pixel_position: gpui::Point<Pixels>,
1495 em_width: Pixels,
1496 window: &mut Window,
1497 cx: &mut App,
1498 ) -> Vec<Option<CreaseTrailerLayout>> {
1499 trailers
1500 .into_iter()
1501 .enumerate()
1502 .map(|(ix, element)| {
1503 let mut element = element?;
1504 let available_space = size(
1505 AvailableSpace::MinContent,
1506 AvailableSpace::Definite(line_height),
1507 );
1508 let size = element.layout_as_root(available_space, window, cx);
1509
1510 let line = &lines[ix];
1511 let padding = if line.width == Pixels::ZERO {
1512 Pixels::ZERO
1513 } else {
1514 4. * em_width
1515 };
1516 let position = point(
1517 scroll_pixel_position.x + line.width + padding,
1518 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1519 );
1520 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1521 let origin = content_origin + position + centering_offset;
1522 element.prepaint_as_root(origin, available_space, window, cx);
1523 Some(CreaseTrailerLayout {
1524 element,
1525 bounds: Bounds::new(origin, size),
1526 })
1527 })
1528 .collect()
1529 }
1530
1531 // Folds contained in a hunk are ignored apart from shrinking visual size
1532 // If a fold contains any hunks then that fold line is marked as modified
1533 fn layout_gutter_diff_hunks(
1534 &self,
1535 line_height: Pixels,
1536 gutter_hitbox: &Hitbox,
1537 display_rows: Range<DisplayRow>,
1538 snapshot: &EditorSnapshot,
1539 window: &mut Window,
1540 cx: &mut App,
1541 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1542 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1543 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1544
1545 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1546 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1547
1548 for hunk in snapshot
1549 .buffer_snapshot
1550 .diff_hunks_in_range(buffer_start..buffer_end)
1551 {
1552 if folded_buffers.contains(&hunk.buffer_id) {
1553 continue;
1554 }
1555
1556 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1557 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1558
1559 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1560 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1561
1562 let display_hunk = if hunk_display_start.column() != 0 {
1563 DisplayDiffHunk::Folded {
1564 display_row: hunk_display_start.row(),
1565 }
1566 } else {
1567 let mut end_row = hunk_display_end.row();
1568 if hunk_display_end.column() > 0 {
1569 end_row.0 += 1;
1570 }
1571 let start_row = hunk_display_start.row();
1572 let contains_expanded = snapshot
1573 .row_infos(start_row)
1574 .take(end_row.0 as usize - start_row.0 as usize)
1575 .any(|row_info| row_info.diff_status.is_some());
1576 DisplayDiffHunk::Unfolded {
1577 status: hunk.status(),
1578 diff_base_byte_range: hunk.diff_base_byte_range,
1579 display_row_range: hunk_display_start.row()..end_row,
1580 multi_buffer_range: Anchor::range_in_buffer(
1581 hunk.excerpt_id,
1582 hunk.buffer_id,
1583 hunk.buffer_range,
1584 ),
1585 contains_expanded,
1586 }
1587 };
1588
1589 display_hunks.push((display_hunk, None));
1590 }
1591
1592 let git_gutter_setting = ProjectSettings::get_global(cx)
1593 .git
1594 .git_gutter
1595 .unwrap_or_default();
1596 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1597 for (hunk, hitbox) in &mut display_hunks {
1598 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1599 let hunk_bounds =
1600 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1601 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1602 }
1603 }
1604 }
1605
1606 display_hunks
1607 }
1608
1609 #[allow(clippy::too_many_arguments)]
1610 fn layout_inline_blame(
1611 &self,
1612 display_row: DisplayRow,
1613 row_info: &RowInfo,
1614 line_layout: &LineWithInvisibles,
1615 crease_trailer: Option<&CreaseTrailerLayout>,
1616 em_width: Pixels,
1617 content_origin: gpui::Point<Pixels>,
1618 scroll_pixel_position: gpui::Point<Pixels>,
1619 line_height: Pixels,
1620 window: &mut Window,
1621 cx: &mut App,
1622 ) -> Option<AnyElement> {
1623 if !self
1624 .editor
1625 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1626 {
1627 return None;
1628 }
1629
1630 let workspace = self
1631 .editor
1632 .read(cx)
1633 .workspace
1634 .as_ref()
1635 .map(|(w, _)| w.clone());
1636
1637 let editor = self.editor.read(cx);
1638 let blame = editor.blame.clone()?;
1639 let padding = {
1640 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1641 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1642
1643 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1644
1645 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1646 match &inline_completion.completion {
1647 InlineCompletion::Edit {
1648 display_mode: EditDisplayMode::TabAccept,
1649 ..
1650 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1651 _ => {}
1652 }
1653 }
1654
1655 padding * em_width
1656 };
1657
1658 let blame_entry = blame
1659 .update(cx, |blame, cx| {
1660 blame.blame_for_rows(&[*row_info], cx).next()
1661 })
1662 .flatten()?;
1663
1664 let mut element =
1665 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1666
1667 let start_y = content_origin.y
1668 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1669
1670 let start_x = {
1671 let line_end = if let Some(crease_trailer) = crease_trailer {
1672 crease_trailer.bounds.right()
1673 } else {
1674 content_origin.x - scroll_pixel_position.x + line_layout.width
1675 };
1676
1677 let padded_line_end = line_end + padding;
1678
1679 let min_column_in_pixels = ProjectSettings::get_global(cx)
1680 .git
1681 .inline_blame
1682 .and_then(|settings| settings.min_column)
1683 .map(|col| self.column_pixels(col as usize, window, cx))
1684 .unwrap_or(px(0.));
1685 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1686
1687 cmp::max(padded_line_end, min_start)
1688 };
1689
1690 let absolute_offset = point(start_x, start_y);
1691 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1692
1693 Some(element)
1694 }
1695
1696 #[allow(clippy::too_many_arguments)]
1697 fn layout_blame_entries(
1698 &self,
1699 buffer_rows: &[RowInfo],
1700 em_width: Pixels,
1701 scroll_position: gpui::Point<f32>,
1702 line_height: Pixels,
1703 gutter_hitbox: &Hitbox,
1704 max_width: Option<Pixels>,
1705 window: &mut Window,
1706 cx: &mut App,
1707 ) -> Option<Vec<AnyElement>> {
1708 if !self
1709 .editor
1710 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1711 {
1712 return None;
1713 }
1714
1715 let blame = self.editor.read(cx).blame.clone()?;
1716 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1717 blame.blame_for_rows(buffer_rows, cx).collect()
1718 });
1719
1720 let width = if let Some(max_width) = max_width {
1721 AvailableSpace::Definite(max_width)
1722 } else {
1723 AvailableSpace::MaxContent
1724 };
1725 let scroll_top = scroll_position.y * line_height;
1726 let start_x = em_width;
1727
1728 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1729
1730 let shaped_lines = blamed_rows
1731 .into_iter()
1732 .enumerate()
1733 .flat_map(|(ix, blame_entry)| {
1734 if let Some(blame_entry) = blame_entry {
1735 let mut element = render_blame_entry(
1736 ix,
1737 &blame,
1738 blame_entry,
1739 &self.style,
1740 &mut last_used_color,
1741 self.editor.clone(),
1742 cx,
1743 );
1744
1745 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1746 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1747
1748 element.prepaint_as_root(
1749 absolute_offset,
1750 size(width, AvailableSpace::MinContent),
1751 window,
1752 cx,
1753 );
1754
1755 Some(element)
1756 } else {
1757 None
1758 }
1759 })
1760 .collect();
1761
1762 Some(shaped_lines)
1763 }
1764
1765 #[allow(clippy::too_many_arguments)]
1766 fn layout_indent_guides(
1767 &self,
1768 content_origin: gpui::Point<Pixels>,
1769 text_origin: gpui::Point<Pixels>,
1770 visible_buffer_range: Range<MultiBufferRow>,
1771 scroll_pixel_position: gpui::Point<Pixels>,
1772 line_height: Pixels,
1773 snapshot: &DisplaySnapshot,
1774 window: &mut Window,
1775 cx: &mut App,
1776 ) -> Option<Vec<IndentGuideLayout>> {
1777 let indent_guides = self.editor.update(cx, |editor, cx| {
1778 editor.indent_guides(visible_buffer_range, snapshot, cx)
1779 })?;
1780
1781 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1782 editor
1783 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1784 .unwrap_or_default()
1785 });
1786
1787 Some(
1788 indent_guides
1789 .into_iter()
1790 .enumerate()
1791 .filter_map(|(i, indent_guide)| {
1792 let single_indent_width =
1793 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1794 let total_width = single_indent_width * indent_guide.depth as f32;
1795 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1796 if start_x >= text_origin.x {
1797 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1798 indent_guide.start_row..indent_guide.end_row,
1799 line_height,
1800 snapshot,
1801 );
1802
1803 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1804
1805 Some(IndentGuideLayout {
1806 origin: point(start_x, start_y),
1807 length,
1808 single_indent_width,
1809 depth: indent_guide.depth,
1810 active: active_indent_guide_indices.contains(&i),
1811 settings: indent_guide.settings,
1812 })
1813 } else {
1814 None
1815 }
1816 })
1817 .collect(),
1818 )
1819 }
1820
1821 fn calculate_indent_guide_bounds(
1822 row_range: Range<MultiBufferRow>,
1823 line_height: Pixels,
1824 snapshot: &DisplaySnapshot,
1825 ) -> (gpui::Pixels, gpui::Pixels) {
1826 let start_point = Point::new(row_range.start.0, 0);
1827 let end_point = Point::new(row_range.end.0, 0);
1828
1829 let row_range = start_point.to_display_point(snapshot).row()
1830 ..end_point.to_display_point(snapshot).row();
1831
1832 let mut prev_line = start_point;
1833 prev_line.row = prev_line.row.saturating_sub(1);
1834 let prev_line = prev_line.to_display_point(snapshot).row();
1835
1836 let mut cons_line = end_point;
1837 cons_line.row += 1;
1838 let cons_line = cons_line.to_display_point(snapshot).row();
1839
1840 let mut offset_y = row_range.start.0 as f32 * line_height;
1841 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1842
1843 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1844 if row_range.end == cons_line {
1845 length += line_height;
1846 }
1847
1848 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1849 // we want to extend the indent guide to the start of the block.
1850 let mut block_height = 0;
1851 let mut block_offset = 0;
1852 let mut found_excerpt_header = false;
1853 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1854 if matches!(block, Block::ExcerptBoundary { .. }) {
1855 found_excerpt_header = true;
1856 break;
1857 }
1858 block_offset += block.height();
1859 block_height += block.height();
1860 }
1861 if !found_excerpt_header {
1862 offset_y -= block_offset as f32 * line_height;
1863 length += block_height as f32 * line_height;
1864 }
1865
1866 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1867 // we want to ensure that the indent guide stops before the excerpt header.
1868 let mut block_height = 0;
1869 let mut found_excerpt_header = false;
1870 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1871 if matches!(block, Block::ExcerptBoundary { .. }) {
1872 found_excerpt_header = true;
1873 }
1874 block_height += block.height();
1875 }
1876 if found_excerpt_header {
1877 length -= block_height as f32 * line_height;
1878 }
1879
1880 (offset_y, length)
1881 }
1882
1883 #[allow(clippy::too_many_arguments)]
1884 fn layout_run_indicators(
1885 &self,
1886 line_height: Pixels,
1887 range: Range<DisplayRow>,
1888 scroll_pixel_position: gpui::Point<Pixels>,
1889 gutter_dimensions: &GutterDimensions,
1890 gutter_hitbox: &Hitbox,
1891 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1892 snapshot: &EditorSnapshot,
1893 window: &mut Window,
1894 cx: &mut App,
1895 ) -> Vec<AnyElement> {
1896 self.editor.update(cx, |editor, cx| {
1897 let active_task_indicator_row =
1898 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1899 deployed_from_indicator,
1900 actions,
1901 ..
1902 })) = editor.context_menu.borrow().as_ref()
1903 {
1904 actions
1905 .tasks
1906 .as_ref()
1907 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1908 .or(*deployed_from_indicator)
1909 } else {
1910 None
1911 };
1912
1913 let offset_range_start = snapshot
1914 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1915 .to_offset(&snapshot.buffer_snapshot);
1916 let offset_range_end = snapshot
1917 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1918 .to_offset(&snapshot.buffer_snapshot);
1919
1920 editor
1921 .tasks
1922 .iter()
1923 .filter_map(|(_, tasks)| {
1924 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1925 return None;
1926 }
1927 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1928 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1929 let buffer_folded = snapshot
1930 .buffer_snapshot
1931 .buffer_line_for_row(multibuffer_row)
1932 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1933 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1934 .unwrap_or(false);
1935 if buffer_folded {
1936 return None;
1937 }
1938
1939 if snapshot.is_line_folded(multibuffer_row) {
1940 // Skip folded indicators, unless it's the starting line of a fold.
1941 if multibuffer_row
1942 .0
1943 .checked_sub(1)
1944 .map_or(false, |previous_row| {
1945 snapshot.is_line_folded(MultiBufferRow(previous_row))
1946 })
1947 {
1948 return None;
1949 }
1950 }
1951 let display_row = multibuffer_point.to_display_point(snapshot).row();
1952 let button = editor.render_run_indicator(
1953 &self.style,
1954 Some(display_row) == active_task_indicator_row,
1955 display_row,
1956 cx,
1957 );
1958
1959 let button = prepaint_gutter_button(
1960 button,
1961 display_row,
1962 line_height,
1963 gutter_dimensions,
1964 scroll_pixel_position,
1965 gutter_hitbox,
1966 rows_with_hunk_bounds,
1967 window,
1968 cx,
1969 );
1970 Some(button)
1971 })
1972 .collect_vec()
1973 })
1974 }
1975
1976 #[allow(clippy::too_many_arguments)]
1977 fn layout_code_actions_indicator(
1978 &self,
1979 line_height: Pixels,
1980 newest_selection_head: DisplayPoint,
1981 scroll_pixel_position: gpui::Point<Pixels>,
1982 gutter_dimensions: &GutterDimensions,
1983 gutter_hitbox: &Hitbox,
1984 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1985 window: &mut Window,
1986 cx: &mut App,
1987 ) -> Option<AnyElement> {
1988 let mut active = false;
1989 let mut button = None;
1990 let row = newest_selection_head.row();
1991 self.editor.update(cx, |editor, cx| {
1992 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1993 deployed_from_indicator,
1994 ..
1995 })) = editor.context_menu.borrow().as_ref()
1996 {
1997 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1998 };
1999 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2000 });
2001
2002 let button = prepaint_gutter_button(
2003 button?,
2004 row,
2005 line_height,
2006 gutter_dimensions,
2007 scroll_pixel_position,
2008 gutter_hitbox,
2009 rows_with_hunk_bounds,
2010 window,
2011 cx,
2012 );
2013
2014 Some(button)
2015 }
2016
2017 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2018 if let Some(index) = participant_index {
2019 cx.theme().players().color_for_participant(index.0)
2020 } else {
2021 cx.theme().players().absent()
2022 }
2023 }
2024
2025 fn calculate_relative_line_numbers(
2026 &self,
2027 snapshot: &EditorSnapshot,
2028 rows: &Range<DisplayRow>,
2029 relative_to: Option<DisplayRow>,
2030 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2031 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2032 let Some(relative_to) = relative_to else {
2033 return relative_rows;
2034 };
2035
2036 let start = rows.start.min(relative_to);
2037 let end = rows.end.max(relative_to);
2038
2039 let buffer_rows = snapshot
2040 .row_infos(start)
2041 .take(1 + end.minus(start) as usize)
2042 .collect::<Vec<_>>();
2043
2044 let head_idx = relative_to.minus(start);
2045 let mut delta = 1;
2046 let mut i = head_idx + 1;
2047 while i < buffer_rows.len() as u32 {
2048 if buffer_rows[i as usize].buffer_row.is_some() {
2049 if rows.contains(&DisplayRow(i + start.0)) {
2050 relative_rows.insert(DisplayRow(i + start.0), delta);
2051 }
2052 delta += 1;
2053 }
2054 i += 1;
2055 }
2056 delta = 1;
2057 i = head_idx.min(buffer_rows.len() as u32 - 1);
2058 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2059 i -= 1;
2060 }
2061
2062 while i > 0 {
2063 i -= 1;
2064 if buffer_rows[i as usize].buffer_row.is_some() {
2065 if rows.contains(&DisplayRow(i + start.0)) {
2066 relative_rows.insert(DisplayRow(i + start.0), delta);
2067 }
2068 delta += 1;
2069 }
2070 }
2071
2072 relative_rows
2073 }
2074
2075 #[allow(clippy::too_many_arguments)]
2076 fn layout_line_numbers(
2077 &self,
2078 gutter_hitbox: Option<&Hitbox>,
2079 gutter_dimensions: GutterDimensions,
2080 line_height: Pixels,
2081 scroll_position: gpui::Point<f32>,
2082 rows: Range<DisplayRow>,
2083 buffer_rows: &[RowInfo],
2084 newest_selection_head: Option<DisplayPoint>,
2085 snapshot: &EditorSnapshot,
2086 window: &mut Window,
2087 cx: &mut App,
2088 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2089 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2090 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2091 });
2092 if !include_line_numbers {
2093 return Arc::default();
2094 }
2095
2096 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2097 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2098 let newest = editor.selections.newest::<Point>(cx);
2099 SelectionLayout::new(
2100 newest,
2101 editor.selections.line_mode,
2102 editor.cursor_shape,
2103 &snapshot.display_snapshot,
2104 true,
2105 true,
2106 None,
2107 )
2108 .head
2109 });
2110 let is_relative = editor.should_use_relative_line_numbers(cx);
2111 (newest_selection_head, is_relative)
2112 });
2113
2114 let relative_to = if is_relative {
2115 Some(newest_selection_head.row())
2116 } else {
2117 None
2118 };
2119 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2120 let mut line_number = String::new();
2121 let line_numbers = buffer_rows
2122 .into_iter()
2123 .enumerate()
2124 .flat_map(|(ix, row_info)| {
2125 let display_row = DisplayRow(rows.start.0 + ix as u32);
2126 line_number.clear();
2127 let non_relative_number = row_info.buffer_row? + 1;
2128 let number = relative_rows
2129 .get(&display_row)
2130 .unwrap_or(&non_relative_number);
2131 write!(&mut line_number, "{number}").unwrap();
2132 if matches!(row_info.diff_status, Some(DiffHunkStatus::Removed(_))) {
2133 return None;
2134 }
2135
2136 let color = cx.theme().colors().editor_line_number;
2137 let shaped_line = self
2138 .shape_line_number(SharedString::from(&line_number), color, window)
2139 .log_err()?;
2140 let scroll_top = scroll_position.y * line_height;
2141 let line_origin = gutter_hitbox.map(|hitbox| {
2142 hitbox.origin
2143 + point(
2144 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2145 ix as f32 * line_height - (scroll_top % line_height),
2146 )
2147 });
2148
2149 #[cfg(not(test))]
2150 let hitbox = line_origin.map(|line_origin| {
2151 window.insert_hitbox(
2152 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2153 false,
2154 )
2155 });
2156 #[cfg(test)]
2157 let hitbox = {
2158 let _ = line_origin;
2159 None
2160 };
2161
2162 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2163 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2164 let line_number = LineNumberLayout {
2165 shaped_line,
2166 hitbox,
2167 display_row,
2168 };
2169 Some((multi_buffer_row, line_number))
2170 })
2171 .collect();
2172 Arc::new(line_numbers)
2173 }
2174
2175 fn layout_crease_toggles(
2176 &self,
2177 rows: Range<DisplayRow>,
2178 row_infos: &[RowInfo],
2179 active_rows: &BTreeMap<DisplayRow, bool>,
2180 snapshot: &EditorSnapshot,
2181 window: &mut Window,
2182 cx: &mut App,
2183 ) -> Vec<Option<AnyElement>> {
2184 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2185 && snapshot.mode == EditorMode::Full
2186 && self.editor.read(cx).is_singleton(cx);
2187 if include_fold_statuses {
2188 row_infos
2189 .into_iter()
2190 .enumerate()
2191 .map(|(ix, info)| {
2192 let row = info.multibuffer_row?;
2193 let display_row = DisplayRow(rows.start.0 + ix as u32);
2194 let active = active_rows.contains_key(&display_row);
2195
2196 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2197 })
2198 .collect()
2199 } else {
2200 Vec::new()
2201 }
2202 }
2203
2204 fn layout_crease_trailers(
2205 &self,
2206 buffer_rows: impl IntoIterator<Item = RowInfo>,
2207 snapshot: &EditorSnapshot,
2208 window: &mut Window,
2209 cx: &mut App,
2210 ) -> Vec<Option<AnyElement>> {
2211 buffer_rows
2212 .into_iter()
2213 .map(|row_info| {
2214 if let Some(row) = row_info.multibuffer_row {
2215 snapshot.render_crease_trailer(row, window, cx)
2216 } else {
2217 None
2218 }
2219 })
2220 .collect()
2221 }
2222
2223 fn layout_lines(
2224 rows: Range<DisplayRow>,
2225 snapshot: &EditorSnapshot,
2226 style: &EditorStyle,
2227 editor_width: Pixels,
2228 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2229 window: &mut Window,
2230 cx: &mut App,
2231 ) -> Vec<LineWithInvisibles> {
2232 if rows.start >= rows.end {
2233 return Vec::new();
2234 }
2235
2236 // Show the placeholder when the editor is empty
2237 if snapshot.is_empty() {
2238 let font_size = style.text.font_size.to_pixels(window.rem_size());
2239 let placeholder_color = cx.theme().colors().text_placeholder;
2240 let placeholder_text = snapshot.placeholder_text();
2241
2242 let placeholder_lines = placeholder_text
2243 .as_ref()
2244 .map_or("", AsRef::as_ref)
2245 .split('\n')
2246 .skip(rows.start.0 as usize)
2247 .chain(iter::repeat(""))
2248 .take(rows.len());
2249 placeholder_lines
2250 .filter_map(move |line| {
2251 let run = TextRun {
2252 len: line.len(),
2253 font: style.text.font(),
2254 color: placeholder_color,
2255 background_color: None,
2256 underline: Default::default(),
2257 strikethrough: None,
2258 };
2259 window
2260 .text_system()
2261 .shape_line(line.to_string().into(), font_size, &[run])
2262 .log_err()
2263 })
2264 .map(|line| LineWithInvisibles {
2265 width: line.width,
2266 len: line.len,
2267 fragments: smallvec![LineFragment::Text(line)],
2268 invisibles: Vec::new(),
2269 font_size,
2270 })
2271 .collect()
2272 } else {
2273 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2274 LineWithInvisibles::from_chunks(
2275 chunks,
2276 &style,
2277 MAX_LINE_LEN,
2278 rows.len(),
2279 snapshot.mode,
2280 editor_width,
2281 is_row_soft_wrapped,
2282 window,
2283 cx,
2284 )
2285 }
2286 }
2287
2288 #[allow(clippy::too_many_arguments)]
2289 fn prepaint_lines(
2290 &self,
2291 start_row: DisplayRow,
2292 line_layouts: &mut [LineWithInvisibles],
2293 line_height: Pixels,
2294 scroll_pixel_position: gpui::Point<Pixels>,
2295 content_origin: gpui::Point<Pixels>,
2296 window: &mut Window,
2297 cx: &mut App,
2298 ) -> SmallVec<[AnyElement; 1]> {
2299 let mut line_elements = SmallVec::new();
2300 for (ix, line) in line_layouts.iter_mut().enumerate() {
2301 let row = start_row + DisplayRow(ix as u32);
2302 line.prepaint(
2303 line_height,
2304 scroll_pixel_position,
2305 row,
2306 content_origin,
2307 &mut line_elements,
2308 window,
2309 cx,
2310 );
2311 }
2312 line_elements
2313 }
2314
2315 #[allow(clippy::too_many_arguments)]
2316 fn render_block(
2317 &self,
2318 block: &Block,
2319 available_width: AvailableSpace,
2320 block_id: BlockId,
2321 block_row_start: DisplayRow,
2322 snapshot: &EditorSnapshot,
2323 text_x: Pixels,
2324 rows: &Range<DisplayRow>,
2325 line_layouts: &[LineWithInvisibles],
2326 gutter_dimensions: &GutterDimensions,
2327 line_height: Pixels,
2328 em_width: Pixels,
2329 text_hitbox: &Hitbox,
2330 editor_width: Pixels,
2331 scroll_width: &mut Pixels,
2332 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2333 selections: &[Selection<Point>],
2334 selected_buffer_ids: &Vec<BufferId>,
2335 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2336 sticky_header_excerpt_id: Option<ExcerptId>,
2337 window: &mut Window,
2338 cx: &mut App,
2339 ) -> (AnyElement, Size<Pixels>) {
2340 let mut element = match block {
2341 Block::Custom(block) => {
2342 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2343 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2344 let align_to = block_start.to_display_point(snapshot);
2345 let anchor_x = text_x
2346 + if rows.contains(&align_to.row()) {
2347 line_layouts[align_to.row().minus(rows.start) as usize]
2348 .x_for_index(align_to.column() as usize)
2349 } else {
2350 layout_line(
2351 align_to.row(),
2352 snapshot,
2353 &self.style,
2354 editor_width,
2355 is_row_soft_wrapped,
2356 window,
2357 cx,
2358 )
2359 .x_for_index(align_to.column() as usize)
2360 };
2361
2362 let selected = selections
2363 .binary_search_by(|selection| {
2364 if selection.end <= block_start {
2365 Ordering::Less
2366 } else if selection.start >= block_end {
2367 Ordering::Greater
2368 } else {
2369 Ordering::Equal
2370 }
2371 })
2372 .is_ok();
2373
2374 div()
2375 .size_full()
2376 .child(block.render(&mut BlockContext {
2377 window,
2378 app: cx,
2379 anchor_x,
2380 gutter_dimensions,
2381 line_height,
2382 em_width,
2383 block_id,
2384 selected,
2385 max_width: text_hitbox.size.width.max(*scroll_width),
2386 editor_style: &self.style,
2387 }))
2388 .into_any()
2389 }
2390
2391 Block::FoldedBuffer {
2392 first_excerpt,
2393 prev_excerpt,
2394 show_excerpt_controls,
2395 height,
2396 } => {
2397 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2398 let mut result = v_flex().id(block_id).w_full();
2399
2400 if let Some(prev_excerpt) = prev_excerpt {
2401 if *show_excerpt_controls {
2402 result = result.child(self.render_expand_excerpt_control(
2403 block_id,
2404 ExpandExcerptDirection::Down,
2405 prev_excerpt.id,
2406 gutter_dimensions,
2407 window,
2408 cx,
2409 ));
2410 }
2411 }
2412
2413 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2414 result
2415 .child(self.render_buffer_header(
2416 first_excerpt,
2417 true,
2418 selected,
2419 jump_data,
2420 window,
2421 cx,
2422 ))
2423 .into_any_element()
2424 }
2425
2426 Block::ExcerptBoundary {
2427 prev_excerpt,
2428 next_excerpt,
2429 show_excerpt_controls,
2430 height,
2431 starts_new_buffer,
2432 } => {
2433 let color = cx.theme().colors().clone();
2434 let mut result = v_flex().id(block_id).w_full();
2435
2436 if let Some(prev_excerpt) = prev_excerpt {
2437 if *show_excerpt_controls {
2438 result = result.child(self.render_expand_excerpt_control(
2439 block_id,
2440 ExpandExcerptDirection::Down,
2441 prev_excerpt.id,
2442 gutter_dimensions,
2443 window,
2444 cx,
2445 ));
2446 }
2447 }
2448
2449 if let Some(next_excerpt) = next_excerpt {
2450 let jump_data =
2451 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2452
2453 if *starts_new_buffer {
2454 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2455 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2456
2457 result = result.child(self.render_buffer_header(
2458 next_excerpt,
2459 false,
2460 selected,
2461 jump_data,
2462 window,
2463 cx,
2464 ));
2465 } else {
2466 result = result
2467 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2468 }
2469
2470 if *show_excerpt_controls {
2471 result = result.child(self.render_expand_excerpt_control(
2472 block_id,
2473 ExpandExcerptDirection::Up,
2474 next_excerpt.id,
2475 gutter_dimensions,
2476 window,
2477 cx,
2478 ));
2479 }
2480 } else {
2481 if *show_excerpt_controls {
2482 result = result.child(
2483 h_flex()
2484 .relative()
2485 .child(
2486 div()
2487 .top(px(0.))
2488 .absolute()
2489 .w_full()
2490 .h_px()
2491 .bg(color.border_variant),
2492 )
2493 .child(self.render_expand_excerpt_control(
2494 block_id,
2495 ExpandExcerptDirection::Up,
2496 next_excerpt.id,
2497 gutter_dimensions,
2498 window,
2499 cx,
2500 )),
2501 );
2502 }
2503 };
2504 }
2505
2506 result.into_any()
2507 }
2508 };
2509
2510 // Discover the element's content height, then round up to the nearest multiple of line height.
2511 let preliminary_size = element.layout_as_root(
2512 size(available_width, AvailableSpace::MinContent),
2513 window,
2514 cx,
2515 );
2516 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2517 let final_size = if preliminary_size.height == quantized_height {
2518 preliminary_size
2519 } else {
2520 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2521 };
2522
2523 if let BlockId::Custom(custom_block_id) = block_id {
2524 if block.height() > 0 {
2525 let element_height_in_lines =
2526 ((final_size.height / line_height).ceil() as u32).max(1);
2527 if element_height_in_lines != block.height() {
2528 resized_blocks.insert(custom_block_id, element_height_in_lines);
2529 }
2530 }
2531 }
2532
2533 (element, final_size)
2534 }
2535
2536 fn render_buffer_header(
2537 &self,
2538 for_excerpt: &ExcerptInfo,
2539 is_folded: bool,
2540 is_selected: bool,
2541 jump_data: JumpData,
2542 window: &mut Window,
2543 cx: &mut App,
2544 ) -> Div {
2545 let include_root = self
2546 .editor
2547 .read(cx)
2548 .project
2549 .as_ref()
2550 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2551 .unwrap_or_default();
2552 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2553 let filename = path
2554 .as_ref()
2555 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2556 let parent_path = path.as_ref().and_then(|path| {
2557 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2558 });
2559 let focus_handle = self.editor.focus_handle(cx);
2560 let colors = cx.theme().colors();
2561
2562 div()
2563 .px_2()
2564 .pt_2()
2565 .w_full()
2566 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2567 .child(
2568 h_flex()
2569 .size_full()
2570 .gap_2()
2571 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2572 .pl_0p5()
2573 .pr_5()
2574 .rounded_md()
2575 .shadow_md()
2576 .border_1()
2577 .map(|div| {
2578 let border_color = if is_selected && is_folded {
2579 colors.border_focused
2580 } else {
2581 colors.border
2582 };
2583 div.border_color(border_color)
2584 })
2585 .bg(colors.editor_subheader_background)
2586 .hover(|style| style.bg(colors.element_hover))
2587 .map(|header| {
2588 let editor = self.editor.clone();
2589 let buffer_id = for_excerpt.buffer_id;
2590 let toggle_chevron_icon =
2591 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2592 header.child(
2593 div()
2594 .hover(|style| style.bg(colors.element_selected))
2595 .rounded_sm()
2596 .child(
2597 ButtonLike::new("toggle-buffer-fold")
2598 .style(ui::ButtonStyle::Transparent)
2599 .size(ButtonSize::Large)
2600 .width(px(30.).into())
2601 .children(toggle_chevron_icon)
2602 .tooltip({
2603 let focus_handle = focus_handle.clone();
2604 move |window, cx| {
2605 Tooltip::for_action_in(
2606 "Toggle Excerpt Fold",
2607 &ToggleFold,
2608 &focus_handle,
2609 window,
2610 cx,
2611 )
2612 }
2613 })
2614 .on_click(move |_, _, cx| {
2615 if is_folded {
2616 editor.update(cx, |editor, cx| {
2617 editor.unfold_buffer(buffer_id, cx);
2618 });
2619 } else {
2620 editor.update(cx, |editor, cx| {
2621 editor.fold_buffer(buffer_id, cx);
2622 });
2623 }
2624 }),
2625 ),
2626 )
2627 })
2628 .children(
2629 self.editor
2630 .read(cx)
2631 .addons
2632 .values()
2633 .filter_map(|addon| {
2634 addon.render_buffer_header_controls(for_excerpt, window, cx)
2635 })
2636 .take(1),
2637 )
2638 .child(
2639 h_flex()
2640 .cursor_pointer()
2641 .id("path header block")
2642 .size_full()
2643 .justify_between()
2644 .child(
2645 h_flex()
2646 .gap_2()
2647 .child(
2648 filename
2649 .map(SharedString::from)
2650 .unwrap_or_else(|| "untitled".into()),
2651 )
2652 .when_some(parent_path, |then, path| {
2653 then.child(div().child(path).text_color(colors.text_muted))
2654 }),
2655 )
2656 .when(is_selected, |el| {
2657 el.child(
2658 h_flex()
2659 .id("jump-to-file-button")
2660 .gap_2p5()
2661 .child(Label::new("Jump To File"))
2662 .children(
2663 KeyBinding::for_action_in(
2664 &OpenExcerpts,
2665 &focus_handle,
2666 window,
2667 )
2668 .map(|binding| binding.into_any_element()),
2669 ),
2670 )
2671 })
2672 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2673 .on_click(window.listener_for(&self.editor, {
2674 move |editor, e: &ClickEvent, window, cx| {
2675 editor.open_excerpts_common(
2676 Some(jump_data.clone()),
2677 e.down.modifiers.secondary(),
2678 window,
2679 cx,
2680 );
2681 }
2682 })),
2683 ),
2684 )
2685 }
2686
2687 fn render_expand_excerpt_control(
2688 &self,
2689 block_id: BlockId,
2690 direction: ExpandExcerptDirection,
2691 excerpt_id: ExcerptId,
2692 gutter_dimensions: &GutterDimensions,
2693 window: &Window,
2694 cx: &mut App,
2695 ) -> impl IntoElement {
2696 let color = cx.theme().colors().clone();
2697 let hover_color = color.border_variant.opacity(0.5);
2698 let focus_handle = self.editor.focus_handle(cx).clone();
2699
2700 let icon_offset =
2701 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2702 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2703 let group_name = if direction == ExpandExcerptDirection::Down {
2704 "expand-down"
2705 } else {
2706 "expand-up"
2707 };
2708
2709 let expand_area = |id: SharedString| {
2710 h_flex()
2711 .id(id)
2712 .w_full()
2713 .cursor_pointer()
2714 .block_mouse_down()
2715 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2716 .hover(|style| style.bg(hover_color))
2717 .tooltip({
2718 let focus_handle = focus_handle.clone();
2719 move |window, cx| {
2720 Tooltip::for_action_in(
2721 "Expand Excerpt",
2722 &ExpandExcerpts { lines: 0 },
2723 &focus_handle,
2724 window,
2725 cx,
2726 )
2727 }
2728 })
2729 };
2730
2731 expand_area(
2732 format!(
2733 "block-{}-{}",
2734 block_id,
2735 if direction == ExpandExcerptDirection::Down {
2736 "down"
2737 } else {
2738 "up"
2739 }
2740 )
2741 .into(),
2742 )
2743 .group(group_name)
2744 .child(
2745 h_flex()
2746 .w(icon_offset)
2747 .h(header_height)
2748 .flex_none()
2749 .justify_end()
2750 .child(
2751 ButtonLike::new("expand-icon")
2752 .style(ButtonStyle::Transparent)
2753 .child(
2754 svg()
2755 .path(if direction == ExpandExcerptDirection::Down {
2756 IconName::ArrowDownFromLine.path()
2757 } else {
2758 IconName::ArrowUpFromLine.path()
2759 })
2760 .size(IconSize::XSmall.rems())
2761 .text_color(cx.theme().colors().editor_line_number)
2762 .group_hover(group_name, |style| {
2763 style.text_color(cx.theme().colors().editor_active_line_number)
2764 }),
2765 ),
2766 ),
2767 )
2768 .on_click(window.listener_for(&self.editor, {
2769 move |editor, _, _, cx| {
2770 editor.expand_excerpt(excerpt_id, direction, cx);
2771 cx.stop_propagation();
2772 }
2773 }))
2774 }
2775
2776 #[allow(clippy::too_many_arguments)]
2777 fn render_blocks(
2778 &self,
2779 rows: Range<DisplayRow>,
2780 snapshot: &EditorSnapshot,
2781 hitbox: &Hitbox,
2782 text_hitbox: &Hitbox,
2783 editor_width: Pixels,
2784 scroll_width: &mut Pixels,
2785 gutter_dimensions: &GutterDimensions,
2786 em_width: Pixels,
2787 text_x: Pixels,
2788 line_height: Pixels,
2789 line_layouts: &[LineWithInvisibles],
2790 selections: &[Selection<Point>],
2791 selected_buffer_ids: &Vec<BufferId>,
2792 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2793 sticky_header_excerpt_id: Option<ExcerptId>,
2794 window: &mut Window,
2795 cx: &mut App,
2796 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2797 let (fixed_blocks, non_fixed_blocks) = snapshot
2798 .blocks_in_range(rows.clone())
2799 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2800
2801 let mut focused_block = self
2802 .editor
2803 .update(cx, |editor, _| editor.take_focused_block());
2804 let mut fixed_block_max_width = Pixels::ZERO;
2805 let mut blocks = Vec::new();
2806 let mut resized_blocks = HashMap::default();
2807
2808 for (row, block) in fixed_blocks {
2809 let block_id = block.id();
2810
2811 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2812 focused_block = None;
2813 }
2814
2815 let (element, element_size) = self.render_block(
2816 block,
2817 AvailableSpace::MinContent,
2818 block_id,
2819 row,
2820 snapshot,
2821 text_x,
2822 &rows,
2823 line_layouts,
2824 gutter_dimensions,
2825 line_height,
2826 em_width,
2827 text_hitbox,
2828 editor_width,
2829 scroll_width,
2830 &mut resized_blocks,
2831 selections,
2832 selected_buffer_ids,
2833 is_row_soft_wrapped,
2834 sticky_header_excerpt_id,
2835 window,
2836 cx,
2837 );
2838 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2839 blocks.push(BlockLayout {
2840 id: block_id,
2841 row: Some(row),
2842 element,
2843 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2844 style: BlockStyle::Fixed,
2845 });
2846 }
2847
2848 for (row, block) in non_fixed_blocks {
2849 let style = block.style();
2850 let width = match style {
2851 BlockStyle::Sticky => hitbox.size.width,
2852 BlockStyle::Flex => hitbox
2853 .size
2854 .width
2855 .max(fixed_block_max_width)
2856 .max(gutter_dimensions.width + *scroll_width),
2857 BlockStyle::Fixed => unreachable!(),
2858 };
2859 let block_id = block.id();
2860
2861 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2862 focused_block = None;
2863 }
2864
2865 let (element, element_size) = self.render_block(
2866 block,
2867 width.into(),
2868 block_id,
2869 row,
2870 snapshot,
2871 text_x,
2872 &rows,
2873 line_layouts,
2874 gutter_dimensions,
2875 line_height,
2876 em_width,
2877 text_hitbox,
2878 editor_width,
2879 scroll_width,
2880 &mut resized_blocks,
2881 selections,
2882 selected_buffer_ids,
2883 is_row_soft_wrapped,
2884 sticky_header_excerpt_id,
2885 window,
2886 cx,
2887 );
2888
2889 blocks.push(BlockLayout {
2890 id: block_id,
2891 row: Some(row),
2892 element,
2893 available_space: size(width.into(), element_size.height.into()),
2894 style,
2895 });
2896 }
2897
2898 if let Some(focused_block) = focused_block {
2899 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2900 if focus_handle.is_focused(window) {
2901 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2902 let style = block.style();
2903 let width = match style {
2904 BlockStyle::Fixed => AvailableSpace::MinContent,
2905 BlockStyle::Flex => AvailableSpace::Definite(
2906 hitbox
2907 .size
2908 .width
2909 .max(fixed_block_max_width)
2910 .max(gutter_dimensions.width + *scroll_width),
2911 ),
2912 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2913 };
2914
2915 let (element, element_size) = self.render_block(
2916 &block,
2917 width,
2918 focused_block.id,
2919 rows.end,
2920 snapshot,
2921 text_x,
2922 &rows,
2923 line_layouts,
2924 gutter_dimensions,
2925 line_height,
2926 em_width,
2927 text_hitbox,
2928 editor_width,
2929 scroll_width,
2930 &mut resized_blocks,
2931 selections,
2932 selected_buffer_ids,
2933 is_row_soft_wrapped,
2934 sticky_header_excerpt_id,
2935 window,
2936 cx,
2937 );
2938
2939 blocks.push(BlockLayout {
2940 id: block.id(),
2941 row: None,
2942 element,
2943 available_space: size(width, element_size.height.into()),
2944 style,
2945 });
2946 }
2947 }
2948 }
2949 }
2950
2951 if resized_blocks.is_empty() {
2952 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2953 Ok(blocks)
2954 } else {
2955 Err(resized_blocks)
2956 }
2957 }
2958
2959 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2960 /// a restart of rendering for the editor based on the new sizes.
2961 #[allow(clippy::too_many_arguments)]
2962 fn layout_blocks(
2963 &self,
2964 blocks: &mut Vec<BlockLayout>,
2965 block_starts: &mut HashSet<DisplayRow>,
2966 hitbox: &Hitbox,
2967 line_height: Pixels,
2968 scroll_pixel_position: gpui::Point<Pixels>,
2969 window: &mut Window,
2970 cx: &mut App,
2971 ) {
2972 for block in blocks {
2973 let mut origin = if let Some(row) = block.row {
2974 block_starts.insert(row);
2975 hitbox.origin
2976 + point(
2977 Pixels::ZERO,
2978 row.as_f32() * line_height - scroll_pixel_position.y,
2979 )
2980 } else {
2981 // Position the block outside the visible area
2982 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2983 };
2984
2985 if !matches!(block.style, BlockStyle::Sticky) {
2986 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2987 }
2988
2989 let focus_handle =
2990 block
2991 .element
2992 .prepaint_as_root(origin, block.available_space, window, cx);
2993
2994 if let Some(focus_handle) = focus_handle {
2995 self.editor.update(cx, |editor, _cx| {
2996 editor.set_focused_block(FocusedBlock {
2997 id: block.id,
2998 focus_handle: focus_handle.downgrade(),
2999 });
3000 });
3001 }
3002 }
3003 }
3004
3005 #[allow(clippy::too_many_arguments)]
3006 fn layout_sticky_buffer_header(
3007 &self,
3008 StickyHeaderExcerpt {
3009 excerpt,
3010 next_excerpt_controls_present,
3011 next_buffer_row,
3012 }: StickyHeaderExcerpt<'_>,
3013 scroll_position: f32,
3014 line_height: Pixels,
3015 snapshot: &EditorSnapshot,
3016 hitbox: &Hitbox,
3017 selected_buffer_ids: &Vec<BufferId>,
3018 window: &mut Window,
3019 cx: &mut App,
3020 ) -> AnyElement {
3021 let jump_data = header_jump_data(
3022 snapshot,
3023 DisplayRow(scroll_position as u32),
3024 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3025 excerpt,
3026 );
3027
3028 let editor_bg_color = cx.theme().colors().editor_background;
3029
3030 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3031
3032 let mut header = v_flex()
3033 .relative()
3034 .child(
3035 div()
3036 .w(hitbox.bounds.size.width)
3037 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3038 .bg(linear_gradient(
3039 0.,
3040 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3041 linear_color_stop(editor_bg_color, 0.6),
3042 ))
3043 .absolute()
3044 .top_0(),
3045 )
3046 .child(
3047 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3048 .into_any_element(),
3049 )
3050 .into_any_element();
3051
3052 let mut origin = hitbox.origin;
3053
3054 if let Some(next_buffer_row) = next_buffer_row {
3055 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3056
3057 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3058
3059 if next_excerpt_controls_present {
3060 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3061 }
3062
3063 let offset = scroll_position - max_row as f32;
3064
3065 if offset > 0.0 {
3066 origin.y -= Pixels(offset) * line_height;
3067 }
3068 }
3069
3070 let size = size(
3071 AvailableSpace::Definite(hitbox.size.width),
3072 AvailableSpace::MinContent,
3073 );
3074
3075 header.prepaint_as_root(origin, size, window, cx);
3076
3077 header
3078 }
3079
3080 #[allow(clippy::too_many_arguments)]
3081 fn layout_cursor_popovers(
3082 &self,
3083 line_height: Pixels,
3084 text_hitbox: &Hitbox,
3085 content_origin: gpui::Point<Pixels>,
3086 start_row: DisplayRow,
3087 scroll_pixel_position: gpui::Point<Pixels>,
3088 line_layouts: &[LineWithInvisibles],
3089 cursor: DisplayPoint,
3090 cursor_point: Point,
3091 style: &EditorStyle,
3092 window: &mut Window,
3093 cx: &mut App,
3094 ) {
3095 let mut min_menu_height = Pixels::ZERO;
3096 let mut max_menu_height = Pixels::ZERO;
3097 let mut height_above_menu = Pixels::ZERO;
3098 let height_below_menu = Pixels::ZERO;
3099 let mut edit_prediction_popover_visible = false;
3100 let mut context_menu_visible = false;
3101
3102 {
3103 let editor = self.editor.read(cx);
3104 if editor
3105 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3106 {
3107 height_above_menu +=
3108 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3109 edit_prediction_popover_visible = true;
3110 }
3111
3112 if editor.context_menu_visible() {
3113 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3114 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3115 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3116 context_menu_visible = true;
3117 }
3118 }
3119 }
3120
3121 let visible = edit_prediction_popover_visible || context_menu_visible;
3122 if !visible {
3123 return;
3124 }
3125
3126 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3127 let target_position = content_origin
3128 + gpui::Point {
3129 x: cmp::max(
3130 px(0.),
3131 cursor_row_layout.x_for_index(cursor.column() as usize)
3132 - scroll_pixel_position.x,
3133 ),
3134 y: cmp::max(
3135 px(0.),
3136 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3137 ),
3138 };
3139
3140 let viewport_bounds =
3141 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3142 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3143 ..Default::default()
3144 });
3145
3146 let min_height = height_above_menu + min_menu_height + height_below_menu;
3147 let max_height = height_above_menu + max_menu_height + height_below_menu;
3148 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3149 target_position,
3150 line_height,
3151 min_height,
3152 max_height,
3153 text_hitbox,
3154 viewport_bounds,
3155 window,
3156 cx,
3157 |height, max_width_for_stable_x, y_flipped, window, cx| {
3158 // First layout the menu to get its size - others can be at least this wide.
3159 let context_menu = if context_menu_visible {
3160 let menu_height = if y_flipped {
3161 height - height_below_menu
3162 } else {
3163 height - height_above_menu
3164 };
3165 let mut element = self
3166 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3167 .expect("Visible context menu should always render.");
3168 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3169 Some((CursorPopoverType::CodeContextMenu, element, size))
3170 } else {
3171 None
3172 };
3173 let min_width = context_menu
3174 .as_ref()
3175 .map_or(px(0.), |(_, _, size)| size.width);
3176 let max_width = max_width_for_stable_x.max(
3177 context_menu
3178 .as_ref()
3179 .map_or(px(0.), |(_, _, size)| size.width),
3180 );
3181
3182 let edit_prediction = if edit_prediction_popover_visible {
3183 self.editor.update(cx, move |editor, cx| {
3184 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3185 let mut element = editor.render_edit_prediction_cursor_popover(
3186 min_width,
3187 max_width,
3188 cursor_point,
3189 style,
3190 accept_binding.keystroke()?,
3191 window,
3192 cx,
3193 )?;
3194 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3195 Some((CursorPopoverType::EditPrediction, element, size))
3196 })
3197 } else {
3198 None
3199 };
3200 vec![edit_prediction, context_menu]
3201 .into_iter()
3202 .flatten()
3203 .collect::<Vec<_>>()
3204 },
3205 ) else {
3206 return;
3207 };
3208
3209 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3210 .iter()
3211 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3212 else {
3213 return;
3214 };
3215 let last_ix = laid_out_popovers.len() - 1;
3216 let menu_is_last = menu_ix == last_ix;
3217 let first_popover_bounds = laid_out_popovers[0].1;
3218 let last_popover_bounds = laid_out_popovers[last_ix].1;
3219
3220 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3221 // right, and otherwise it goes below or to the right.
3222 let mut target_bounds = Bounds::from_corners(
3223 first_popover_bounds.origin,
3224 last_popover_bounds.bottom_right(),
3225 );
3226 target_bounds.size.width = menu_bounds.size.width;
3227
3228 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3229 // based on this is preferred for layout stability.
3230 let mut max_target_bounds = target_bounds;
3231 max_target_bounds.size.height = max_height;
3232 if y_flipped {
3233 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3234 }
3235
3236 // Add spacing around `target_bounds` and `max_target_bounds`.
3237 let mut extend_amount = Edges::all(MENU_GAP);
3238 if y_flipped {
3239 extend_amount.bottom = line_height;
3240 } else {
3241 extend_amount.top = line_height;
3242 }
3243 let target_bounds = target_bounds.extend(extend_amount);
3244 let max_target_bounds = max_target_bounds.extend(extend_amount);
3245
3246 let must_place_above_or_below =
3247 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3248 laid_out_popovers[menu_ix + 1..]
3249 .iter()
3250 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3251 } else {
3252 false
3253 };
3254
3255 self.layout_context_menu_aside(
3256 y_flipped,
3257 *menu_bounds,
3258 target_bounds,
3259 max_target_bounds,
3260 max_menu_height,
3261 must_place_above_or_below,
3262 text_hitbox,
3263 viewport_bounds,
3264 window,
3265 cx,
3266 );
3267 }
3268
3269 #[allow(clippy::too_many_arguments)]
3270 fn layout_gutter_menu(
3271 &self,
3272 line_height: Pixels,
3273 text_hitbox: &Hitbox,
3274 content_origin: gpui::Point<Pixels>,
3275 scroll_pixel_position: gpui::Point<Pixels>,
3276 gutter_overshoot: Pixels,
3277 window: &mut Window,
3278 cx: &mut App,
3279 ) {
3280 let editor = self.editor.read(cx);
3281 if !editor.context_menu_visible() {
3282 return;
3283 }
3284 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3285 editor.context_menu_origin()
3286 else {
3287 return;
3288 };
3289 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3290 // indicator than just a plain first column of the text field.
3291 let target_position = content_origin
3292 + gpui::Point {
3293 x: -gutter_overshoot,
3294 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3295 };
3296 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3297 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3298 let viewport_bounds =
3299 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3300 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3301 ..Default::default()
3302 });
3303 self.layout_popovers_above_or_below_line(
3304 target_position,
3305 line_height,
3306 min_height,
3307 max_height,
3308 text_hitbox,
3309 viewport_bounds,
3310 window,
3311 cx,
3312 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3313 let mut element = self
3314 .render_context_menu(line_height, height, y_flipped, window, cx)
3315 .expect("Visible context menu should always render.");
3316 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3317 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3318 },
3319 );
3320 }
3321
3322 #[allow(clippy::too_many_arguments)]
3323 fn layout_popovers_above_or_below_line(
3324 &self,
3325 target_position: gpui::Point<Pixels>,
3326 line_height: Pixels,
3327 min_height: Pixels,
3328 max_height: Pixels,
3329 text_hitbox: &Hitbox,
3330 viewport_bounds: Bounds<Pixels>,
3331 window: &mut Window,
3332 cx: &mut App,
3333 make_sized_popovers: impl FnOnce(
3334 Pixels,
3335 Pixels,
3336 bool,
3337 &mut Window,
3338 &mut App,
3339 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3340 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3341 // If the max height won't fit below and there is more space above, put it above the line.
3342 let bottom_y_when_flipped = target_position.y - line_height;
3343 let available_above = bottom_y_when_flipped - text_hitbox.top();
3344 let available_below = text_hitbox.bottom() - target_position.y;
3345 let y_overflows_below = max_height > available_below;
3346 let mut y_flipped = y_overflows_below && available_above > available_below;
3347 let mut height = cmp::min(
3348 max_height,
3349 if y_flipped {
3350 available_above
3351 } else {
3352 available_below
3353 },
3354 );
3355
3356 // If the min height doesn't fit within text bounds, instead fit within the window.
3357 if height < min_height {
3358 let available_above = bottom_y_when_flipped;
3359 let available_below = viewport_bounds.bottom() - target_position.y;
3360 if available_below > min_height {
3361 y_flipped = false;
3362 height = min_height;
3363 } else if available_above > min_height {
3364 y_flipped = true;
3365 height = min_height;
3366 } else if available_above > available_below {
3367 y_flipped = true;
3368 height = available_above;
3369 } else {
3370 y_flipped = false;
3371 height = available_below;
3372 }
3373 }
3374
3375 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3376
3377 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3378 // for very narrow windows.
3379 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3380 if popovers.is_empty() {
3381 return None;
3382 }
3383
3384 let max_width = popovers
3385 .iter()
3386 .map(|(_, _, size)| size.width)
3387 .max()
3388 .unwrap_or_default();
3389
3390 let mut current_position = gpui::Point {
3391 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3392 // overflow. Include space for the scrollbar.
3393 x: target_position
3394 .x
3395 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3396 y: if y_flipped {
3397 bottom_y_when_flipped
3398 } else {
3399 target_position.y
3400 },
3401 };
3402
3403 let mut laid_out_popovers = popovers
3404 .into_iter()
3405 .map(|(popover_type, element, size)| {
3406 if y_flipped {
3407 current_position.y -= size.height;
3408 }
3409 let position = current_position;
3410 window.defer_draw(element, current_position, 1);
3411 if !y_flipped {
3412 current_position.y += size.height + MENU_GAP;
3413 } else {
3414 current_position.y -= MENU_GAP;
3415 }
3416 (popover_type, Bounds::new(position, size))
3417 })
3418 .collect::<Vec<_>>();
3419
3420 if y_flipped {
3421 laid_out_popovers.reverse();
3422 }
3423
3424 Some((laid_out_popovers, y_flipped))
3425 }
3426
3427 #[allow(clippy::too_many_arguments)]
3428 fn layout_context_menu_aside(
3429 &self,
3430 y_flipped: bool,
3431 menu_bounds: Bounds<Pixels>,
3432 target_bounds: Bounds<Pixels>,
3433 max_target_bounds: Bounds<Pixels>,
3434 max_height: Pixels,
3435 must_place_above_or_below: bool,
3436 text_hitbox: &Hitbox,
3437 viewport_bounds: Bounds<Pixels>,
3438 window: &mut Window,
3439 cx: &mut App,
3440 ) {
3441 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3442 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3443 && !must_place_above_or_below
3444 {
3445 let max_width = cmp::min(
3446 available_within_viewport.right - px(1.),
3447 MENU_ASIDE_MAX_WIDTH,
3448 );
3449 let Some(mut aside) =
3450 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3451 else {
3452 return;
3453 };
3454 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3455 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3456 Some((aside, right_position))
3457 } else {
3458 let max_size = size(
3459 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3460 // won't be needed here.
3461 cmp::min(
3462 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3463 viewport_bounds.right(),
3464 ),
3465 cmp::min(
3466 max_height,
3467 cmp::max(
3468 available_within_viewport.top,
3469 available_within_viewport.bottom,
3470 ),
3471 ) - POPOVER_Y_PADDING,
3472 );
3473 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3474 return;
3475 };
3476 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3477
3478 let top_position = point(
3479 menu_bounds.origin.x,
3480 target_bounds.top() - actual_size.height,
3481 );
3482 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3483
3484 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3485 // Prefer to fit on the same side of the line as the menu, then on the other side of
3486 // the line.
3487 if !y_flipped && wanted.height < available.bottom {
3488 Some(bottom_position)
3489 } else if !y_flipped && wanted.height < available.top {
3490 Some(top_position)
3491 } else if y_flipped && wanted.height < available.top {
3492 Some(top_position)
3493 } else if y_flipped && wanted.height < available.bottom {
3494 Some(bottom_position)
3495 } else {
3496 None
3497 }
3498 };
3499
3500 // Prefer choosing a direction using max sizes rather than actual size for stability.
3501 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3502 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3503 let aside_position = fit_within(available_within_text, wanted)
3504 // Fallback: fit max size in window.
3505 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3506 // Fallback: fit actual size in window.
3507 .or_else(|| fit_within(available_within_viewport, actual_size));
3508
3509 aside_position.map(|position| (aside, position))
3510 };
3511
3512 // Skip drawing if it doesn't fit anywhere.
3513 if let Some((aside, position)) = positioned_aside {
3514 window.defer_draw(aside, position, 1);
3515 }
3516 }
3517
3518 fn render_context_menu(
3519 &self,
3520 line_height: Pixels,
3521 height: Pixels,
3522 y_flipped: bool,
3523 window: &mut Window,
3524 cx: &mut App,
3525 ) -> Option<AnyElement> {
3526 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3527 self.editor.update(cx, |editor, cx| {
3528 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3529 })
3530 }
3531
3532 fn render_context_menu_aside(
3533 &self,
3534 max_size: Size<Pixels>,
3535
3536 cx: &mut App,
3537 ) -> Option<AnyElement> {
3538 if max_size.width < px(100.) || max_size.height < px(12.) {
3539 None
3540 } else {
3541 self.editor.update(cx, |editor, cx| {
3542 editor.render_context_menu_aside(&self.style, max_size, cx)
3543 })
3544 }
3545 }
3546
3547 #[allow(clippy::too_many_arguments)]
3548 fn layout_edit_prediction_popover(
3549 &self,
3550 text_bounds: &Bounds<Pixels>,
3551 content_origin: gpui::Point<Pixels>,
3552 editor_snapshot: &EditorSnapshot,
3553 visible_row_range: Range<DisplayRow>,
3554 scroll_top: f32,
3555 scroll_bottom: f32,
3556 line_layouts: &[LineWithInvisibles],
3557 line_height: Pixels,
3558 scroll_pixel_position: gpui::Point<Pixels>,
3559 newest_selection_head: Option<DisplayPoint>,
3560 editor_width: Pixels,
3561 style: &EditorStyle,
3562 window: &mut Window,
3563 cx: &mut App,
3564 ) -> Option<AnyElement> {
3565 const PADDING_X: Pixels = Pixels(24.);
3566 const PADDING_Y: Pixels = Pixels(2.);
3567
3568 let editor = self.editor.read(cx);
3569 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3570
3571 if editor.edit_prediction_visible_in_cursor_popover(true) {
3572 return None;
3573 }
3574
3575 // Adjust text origin for horizontal scrolling (in some cases here)
3576 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3577
3578 // Clamp left offset after extreme scrollings
3579 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3580 x: point.x.max(content_origin.x),
3581 y: point.y,
3582 };
3583
3584 match &active_inline_completion.completion {
3585 InlineCompletion::Move { target, .. } => {
3586 let target_display_point = target.to_display_point(editor_snapshot);
3587
3588 if editor.edit_prediction_requires_modifier() {
3589 if !editor.edit_prediction_preview_is_active() {
3590 return None;
3591 }
3592
3593 if target_display_point.row() < visible_row_range.start {
3594 let mut element = editor
3595 .render_edit_prediction_line_popover(
3596 "Scroll",
3597 Some(IconName::ArrowUp),
3598 window,
3599 cx,
3600 )?
3601 .into_any();
3602
3603 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3604
3605 let cursor = newest_selection_head?;
3606 let cursor_row_layout = line_layouts
3607 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3608 let cursor_column = cursor.column() as usize;
3609
3610 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3611
3612 const PADDING_Y: Pixels = px(12.);
3613
3614 let origin = start_point + point(cursor_character_x, PADDING_Y);
3615
3616 element.prepaint_at(origin, window, cx);
3617 return Some(element);
3618 } else if target_display_point.row() >= visible_row_range.end {
3619 let mut element = editor
3620 .render_edit_prediction_line_popover(
3621 "Scroll",
3622 Some(IconName::ArrowDown),
3623 window,
3624 cx,
3625 )?
3626 .into_any();
3627
3628 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3629
3630 let cursor = newest_selection_head?;
3631 let cursor_row_layout = line_layouts
3632 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3633 let cursor_column = cursor.column() as usize;
3634
3635 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3636 const PADDING_Y: Pixels = px(12.);
3637
3638 let origin = start_point
3639 + point(
3640 cursor_character_x,
3641 text_bounds.size.height - size.height - PADDING_Y,
3642 );
3643
3644 element.prepaint_at(origin, window, cx);
3645 return Some(element);
3646 } else {
3647 const POLE_WIDTH: Pixels = px(2.);
3648
3649 let mut element = v_flex()
3650 .child(
3651 editor
3652 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3653 .rounded_br(px(0.))
3654 .rounded_tr(px(0.))
3655 .border_r_2(),
3656 )
3657 .child(
3658 div()
3659 .w(POLE_WIDTH)
3660 .bg(cx.theme().colors().text_accent.opacity(0.8))
3661 .h(line_height),
3662 )
3663 .items_end()
3664 .into_any();
3665
3666 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3667
3668 let line_layout =
3669 line_layouts
3670 .get(target_display_point.row().minus(visible_row_range.start)
3671 as usize)?;
3672 let target_column = target_display_point.column() as usize;
3673
3674 let target_x = line_layout.x_for_index(target_column);
3675 let target_y = (target_display_point.row().as_f32() * line_height)
3676 - scroll_pixel_position.y;
3677
3678 let origin = clamp_start(
3679 start_point + point(target_x, target_y)
3680 - point(size.width - POLE_WIDTH, size.height - line_height),
3681 );
3682
3683 element.prepaint_at(origin, window, cx);
3684
3685 return Some(element);
3686 }
3687 }
3688
3689 if target_display_point.row().as_f32() < scroll_top {
3690 let mut element = editor
3691 .render_edit_prediction_line_popover(
3692 "Jump to Edit",
3693 Some(IconName::ArrowUp),
3694 window,
3695 cx,
3696 )?
3697 .into_any();
3698
3699 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3700 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3701
3702 element.prepaint_at(text_bounds.origin + offset, window, cx);
3703 Some(element)
3704 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3705 let mut element = editor
3706 .render_edit_prediction_line_popover(
3707 "Jump to Edit",
3708 Some(IconName::ArrowDown),
3709 window,
3710 cx,
3711 )?
3712 .into_any();
3713
3714 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3715 let offset = point(
3716 (text_bounds.size.width - size.width) / 2.,
3717 text_bounds.size.height - size.height - PADDING_Y,
3718 );
3719
3720 element.prepaint_at(text_bounds.origin + offset, window, cx);
3721 Some(element)
3722 } else {
3723 let mut element = editor
3724 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3725 .into_any();
3726 let target_line_end = DisplayPoint::new(
3727 target_display_point.row(),
3728 editor_snapshot.line_len(target_display_point.row()),
3729 );
3730 let origin = self.editor.update(cx, |editor, _cx| {
3731 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3732 })?;
3733
3734 element.prepaint_as_root(
3735 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3736 AvailableSpace::min_size(),
3737 window,
3738 cx,
3739 );
3740 Some(element)
3741 }
3742 }
3743 InlineCompletion::Edit {
3744 edits,
3745 edit_preview,
3746 display_mode,
3747 snapshot,
3748 } => {
3749 if self.editor.read(cx).has_visible_completions_menu() {
3750 return None;
3751 }
3752
3753 let edit_start = edits
3754 .first()
3755 .unwrap()
3756 .0
3757 .start
3758 .to_display_point(editor_snapshot);
3759 let edit_end = edits
3760 .last()
3761 .unwrap()
3762 .0
3763 .end
3764 .to_display_point(editor_snapshot);
3765
3766 let is_visible = visible_row_range.contains(&edit_start.row())
3767 || visible_row_range.contains(&edit_end.row());
3768 if !is_visible {
3769 return None;
3770 }
3771
3772 match display_mode {
3773 EditDisplayMode::TabAccept => {
3774 let range = &edits.first()?.0;
3775 let target_display_point = range.end.to_display_point(editor_snapshot);
3776
3777 let target_line_end = DisplayPoint::new(
3778 target_display_point.row(),
3779 editor_snapshot.line_len(target_display_point.row()),
3780 );
3781 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3782 Some((
3783 editor
3784 .render_edit_prediction_line_popover(
3785 "Accept", None, window, cx,
3786 )?
3787 .into_any(),
3788 editor.display_to_pixel_point(
3789 target_line_end,
3790 editor_snapshot,
3791 window,
3792 )?,
3793 ))
3794 })?;
3795
3796 element.prepaint_as_root(
3797 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3798 AvailableSpace::min_size(),
3799 window,
3800 cx,
3801 );
3802 return Some(element);
3803 }
3804 EditDisplayMode::Inline => return None,
3805 EditDisplayMode::DiffPopover => {}
3806 }
3807
3808 let highlighted_edits = crate::inline_completion_edit_text(
3809 &snapshot,
3810 edits,
3811 edit_preview.as_ref()?,
3812 false,
3813 cx,
3814 );
3815
3816 let styled_text = highlighted_edits.to_styled_text(&style.text);
3817 let line_count = highlighted_edits.text.lines().count();
3818
3819 const BORDER_WIDTH: Pixels = px(1.);
3820
3821 let mut element = h_flex()
3822 .items_start()
3823 .child(
3824 h_flex()
3825 .bg(cx.theme().colors().editor_background)
3826 .border(BORDER_WIDTH)
3827 .shadow_sm()
3828 .border_color(cx.theme().colors().border)
3829 .rounded_l_lg()
3830 .when(line_count > 1, |el| el.rounded_br_lg())
3831 .pr_1()
3832 .child(styled_text),
3833 )
3834 .child(
3835 h_flex()
3836 .h(line_height + BORDER_WIDTH * px(2.))
3837 .px_1p5()
3838 .gap_1()
3839 // Workaround: For some reason, there's a gap if we don't do this
3840 .ml(-BORDER_WIDTH)
3841 .shadow(smallvec![gpui::BoxShadow {
3842 color: gpui::black().opacity(0.05),
3843 offset: point(px(1.), px(1.)),
3844 blur_radius: px(2.),
3845 spread_radius: px(0.),
3846 }])
3847 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
3848 .border(BORDER_WIDTH)
3849 .border_color(cx.theme().colors().border)
3850 .rounded_r_lg()
3851 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
3852 )
3853 .into_any();
3854
3855 let longest_row =
3856 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3857 let longest_line_width = if visible_row_range.contains(&longest_row) {
3858 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3859 } else {
3860 layout_line(
3861 longest_row,
3862 editor_snapshot,
3863 style,
3864 editor_width,
3865 |_| false,
3866 window,
3867 cx,
3868 )
3869 .width
3870 };
3871
3872 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3873 .extend(Edges {
3874 right: -Self::SCROLLBAR_WIDTH,
3875 ..Default::default()
3876 });
3877
3878 let x_after_longest =
3879 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3880
3881 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3882
3883 // Fully visible if it can be displayed within the window (allow overlapping other
3884 // panes). However, this is only allowed if the popover starts within text_bounds.
3885 let can_position_to_the_right = x_after_longest < text_bounds.right()
3886 && x_after_longest + element_bounds.width < viewport_bounds.right();
3887
3888 let mut origin = if can_position_to_the_right {
3889 point(
3890 x_after_longest,
3891 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3892 - scroll_pixel_position.y,
3893 )
3894 } else {
3895 let cursor_row = newest_selection_head.map(|head| head.row());
3896 let above_edit = edit_start
3897 .row()
3898 .0
3899 .checked_sub(line_count as u32)
3900 .map(DisplayRow);
3901 let below_edit = Some(edit_end.row() + 1);
3902 let above_cursor = cursor_row
3903 .and_then(|row| row.0.checked_sub(line_count as u32).map(DisplayRow));
3904 let below_cursor = cursor_row.map(|cursor_row| cursor_row + 1);
3905
3906 // Place the edit popover adjacent to the edit if there is a location
3907 // available that is onscreen and does not obscure the cursor. Otherwise,
3908 // place it adjacent to the cursor.
3909 let row_target = [above_edit, below_edit, above_cursor, below_cursor]
3910 .into_iter()
3911 .flatten()
3912 .find(|&start_row| {
3913 let end_row = start_row + line_count as u32;
3914 visible_row_range.contains(&start_row)
3915 && visible_row_range.contains(&end_row)
3916 && cursor_row.map_or(true, |cursor_row| {
3917 !((start_row..end_row).contains(&cursor_row))
3918 })
3919 })?;
3920
3921 content_origin
3922 + point(
3923 -scroll_pixel_position.x,
3924 row_target.as_f32() * line_height - scroll_pixel_position.y,
3925 )
3926 };
3927
3928 origin.x -= BORDER_WIDTH;
3929
3930 window.defer_draw(element, origin, 1);
3931
3932 // Do not return an element, since it will already be drawn due to defer_draw.
3933 None
3934 }
3935 }
3936 }
3937
3938 fn layout_mouse_context_menu(
3939 &self,
3940 editor_snapshot: &EditorSnapshot,
3941 visible_range: Range<DisplayRow>,
3942 content_origin: gpui::Point<Pixels>,
3943 window: &mut Window,
3944 cx: &mut App,
3945 ) -> Option<AnyElement> {
3946 let position = self.editor.update(cx, |editor, _cx| {
3947 let visible_start_point = editor.display_to_pixel_point(
3948 DisplayPoint::new(visible_range.start, 0),
3949 editor_snapshot,
3950 window,
3951 )?;
3952 let visible_end_point = editor.display_to_pixel_point(
3953 DisplayPoint::new(visible_range.end, 0),
3954 editor_snapshot,
3955 window,
3956 )?;
3957
3958 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3959 let (source_display_point, position) = match mouse_context_menu.position {
3960 MenuPosition::PinnedToScreen(point) => (None, point),
3961 MenuPosition::PinnedToEditor { source, offset } => {
3962 let source_display_point = source.to_display_point(editor_snapshot);
3963 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3964 let position = content_origin + source_point + offset;
3965 (Some(source_display_point), position)
3966 }
3967 };
3968
3969 let source_included = source_display_point.map_or(true, |source_display_point| {
3970 visible_range
3971 .to_inclusive()
3972 .contains(&source_display_point.row())
3973 });
3974 let position_included =
3975 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3976 if !source_included && !position_included {
3977 None
3978 } else {
3979 Some(position)
3980 }
3981 })?;
3982
3983 let mut element = self.editor.update(cx, |editor, _| {
3984 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3985 let context_menu = mouse_context_menu.context_menu.clone();
3986
3987 Some(
3988 deferred(
3989 anchored()
3990 .position(position)
3991 .child(context_menu)
3992 .anchor(Corner::TopLeft)
3993 .snap_to_window_with_margin(px(8.)),
3994 )
3995 .with_priority(1)
3996 .into_any(),
3997 )
3998 })?;
3999
4000 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4001 Some(element)
4002 }
4003
4004 #[allow(clippy::too_many_arguments)]
4005 fn layout_hover_popovers(
4006 &self,
4007 snapshot: &EditorSnapshot,
4008 hitbox: &Hitbox,
4009 text_hitbox: &Hitbox,
4010 visible_display_row_range: Range<DisplayRow>,
4011 content_origin: gpui::Point<Pixels>,
4012 scroll_pixel_position: gpui::Point<Pixels>,
4013 line_layouts: &[LineWithInvisibles],
4014 line_height: Pixels,
4015 em_width: Pixels,
4016 window: &mut Window,
4017 cx: &mut App,
4018 ) {
4019 struct MeasuredHoverPopover {
4020 element: AnyElement,
4021 size: Size<Pixels>,
4022 horizontal_offset: Pixels,
4023 }
4024
4025 let max_size = size(
4026 (120. * em_width) // Default size
4027 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4028 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4029 (16. * line_height) // Default size
4030 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4031 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4032 );
4033
4034 let hover_popovers = self.editor.update(cx, |editor, cx| {
4035 editor
4036 .hover_state
4037 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4038 });
4039 let Some((position, hover_popovers)) = hover_popovers else {
4040 return;
4041 };
4042
4043 // This is safe because we check on layout whether the required row is available
4044 let hovered_row_layout =
4045 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4046
4047 // Compute Hovered Point
4048 let x =
4049 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4050 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4051 let hovered_point = content_origin + point(x, y);
4052
4053 let mut overall_height = Pixels::ZERO;
4054 let mut measured_hover_popovers = Vec::new();
4055 for mut hover_popover in hover_popovers {
4056 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4057 let horizontal_offset =
4058 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4059
4060 overall_height += HOVER_POPOVER_GAP + size.height;
4061
4062 measured_hover_popovers.push(MeasuredHoverPopover {
4063 element: hover_popover,
4064 size,
4065 horizontal_offset,
4066 });
4067 }
4068 overall_height += HOVER_POPOVER_GAP;
4069
4070 fn draw_occluder(
4071 width: Pixels,
4072 origin: gpui::Point<Pixels>,
4073 window: &mut Window,
4074 cx: &mut App,
4075 ) {
4076 let mut occlusion = div()
4077 .size_full()
4078 .occlude()
4079 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4080 .into_any_element();
4081 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4082 window.defer_draw(occlusion, origin, 2);
4083 }
4084
4085 if hovered_point.y > overall_height {
4086 // There is enough space above. Render popovers above the hovered point
4087 let mut current_y = hovered_point.y;
4088 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4089 let size = popover.size;
4090 let popover_origin = point(
4091 hovered_point.x + popover.horizontal_offset,
4092 current_y - size.height,
4093 );
4094
4095 window.defer_draw(popover.element, popover_origin, 2);
4096 if position != itertools::Position::Last {
4097 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4098 draw_occluder(size.width, origin, window, cx);
4099 }
4100
4101 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4102 }
4103 } else {
4104 // There is not enough space above. Render popovers below the hovered point
4105 let mut current_y = hovered_point.y + line_height;
4106 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4107 let size = popover.size;
4108 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4109
4110 window.defer_draw(popover.element, popover_origin, 2);
4111 if position != itertools::Position::Last {
4112 let origin = point(popover_origin.x, popover_origin.y + size.height);
4113 draw_occluder(size.width, origin, window, cx);
4114 }
4115
4116 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4117 }
4118 }
4119 }
4120
4121 #[allow(clippy::too_many_arguments)]
4122 fn layout_diff_hunk_controls(
4123 &self,
4124 row_range: Range<DisplayRow>,
4125 row_infos: &[RowInfo],
4126 text_hitbox: &Hitbox,
4127 position_map: &PositionMap,
4128 newest_cursor_position: Option<DisplayPoint>,
4129 line_height: Pixels,
4130 scroll_pixel_position: gpui::Point<Pixels>,
4131 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4132 editor: Entity<Editor>,
4133 window: &mut Window,
4134 cx: &mut App,
4135 ) -> Vec<AnyElement> {
4136 let point_for_position = position_map.point_for_position(window.mouse_position());
4137
4138 let mut controls = vec![];
4139
4140 let active_positions = [
4141 Some(point_for_position.previous_valid),
4142 newest_cursor_position,
4143 ];
4144
4145 for (hunk, _) in display_hunks {
4146 if let DisplayDiffHunk::Unfolded {
4147 display_row_range,
4148 multi_buffer_range,
4149 status,
4150 ..
4151 } = &hunk
4152 {
4153 if display_row_range.start < row_range.start
4154 || display_row_range.start >= row_range.end
4155 {
4156 continue;
4157 }
4158 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4159 if row_infos[row_ix].diff_status.is_none() {
4160 continue;
4161 }
4162 if matches!(
4163 row_infos[row_ix].diff_status,
4164 Some(DiffHunkStatus::Added(_))
4165 ) && !matches!(*status, DiffHunkStatus::Added(_))
4166 {
4167 continue;
4168 }
4169 if active_positions
4170 .iter()
4171 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4172 {
4173 let y = display_row_range.start.as_f32() * line_height
4174 + text_hitbox.bounds.top()
4175 - scroll_pixel_position.y;
4176 let x = text_hitbox.bounds.right()
4177 - rems(6.).to_pixels(window.rem_size())
4178 - px(33.);
4179
4180 let mut element = diff_hunk_controls(
4181 display_row_range.start.0,
4182 multi_buffer_range.clone(),
4183 line_height,
4184 &editor,
4185 window,
4186 cx,
4187 );
4188 element.prepaint_as_root(
4189 gpui::Point::new(x, y),
4190 size(px(100.0), line_height).into(),
4191 window,
4192 cx,
4193 );
4194 controls.push(element);
4195 }
4196 }
4197 }
4198
4199 controls
4200 }
4201
4202 #[allow(clippy::too_many_arguments)]
4203 fn layout_signature_help(
4204 &self,
4205 hitbox: &Hitbox,
4206 content_origin: gpui::Point<Pixels>,
4207 scroll_pixel_position: gpui::Point<Pixels>,
4208 newest_selection_head: Option<DisplayPoint>,
4209 start_row: DisplayRow,
4210 line_layouts: &[LineWithInvisibles],
4211 line_height: Pixels,
4212 em_width: Pixels,
4213 window: &mut Window,
4214 cx: &mut App,
4215 ) {
4216 if !self.editor.focus_handle(cx).is_focused(window) {
4217 return;
4218 }
4219 let Some(newest_selection_head) = newest_selection_head else {
4220 return;
4221 };
4222 let selection_row = newest_selection_head.row();
4223 if selection_row < start_row {
4224 return;
4225 }
4226 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4227 else {
4228 return;
4229 };
4230
4231 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4232 - scroll_pixel_position.x
4233 + content_origin.x;
4234 let start_y =
4235 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4236
4237 let max_size = size(
4238 (120. * em_width) // Default size
4239 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4240 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4241 (16. * line_height) // Default size
4242 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4243 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4244 );
4245
4246 let maybe_element = self.editor.update(cx, |editor, cx| {
4247 if let Some(popover) = editor.signature_help_state.popover_mut() {
4248 let element = popover.render(
4249 &self.style,
4250 max_size,
4251 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4252 cx,
4253 );
4254 Some(element)
4255 } else {
4256 None
4257 }
4258 });
4259 if let Some(mut element) = maybe_element {
4260 let window_size = window.viewport_size();
4261 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4262 let mut point = point(start_x, start_y - size.height);
4263
4264 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4265 if point.x + size.width >= window_size.width {
4266 point.x = window_size.width - size.width;
4267 }
4268
4269 window.defer_draw(element, point, 1)
4270 }
4271 }
4272
4273 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4274 window.paint_layer(layout.hitbox.bounds, |window| {
4275 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4276 let gutter_bg = cx.theme().colors().editor_gutter_background;
4277 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4278 window.paint_quad(fill(
4279 layout.position_map.text_hitbox.bounds,
4280 self.style.background,
4281 ));
4282
4283 if let EditorMode::Full = layout.mode {
4284 let mut active_rows = layout.active_rows.iter().peekable();
4285 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4286 let mut end_row = start_row.0;
4287 while active_rows
4288 .peek()
4289 .map_or(false, |(active_row, has_selection)| {
4290 active_row.0 == end_row + 1
4291 && *has_selection == contains_non_empty_selection
4292 })
4293 {
4294 active_rows.next().unwrap();
4295 end_row += 1;
4296 }
4297
4298 if !contains_non_empty_selection {
4299 let highlight_h_range =
4300 match layout.position_map.snapshot.current_line_highlight {
4301 CurrentLineHighlight::Gutter => Some(Range {
4302 start: layout.hitbox.left(),
4303 end: layout.gutter_hitbox.right(),
4304 }),
4305 CurrentLineHighlight::Line => Some(Range {
4306 start: layout.position_map.text_hitbox.bounds.left(),
4307 end: layout.position_map.text_hitbox.bounds.right(),
4308 }),
4309 CurrentLineHighlight::All => Some(Range {
4310 start: layout.hitbox.left(),
4311 end: layout.hitbox.right(),
4312 }),
4313 CurrentLineHighlight::None => None,
4314 };
4315 if let Some(range) = highlight_h_range {
4316 let active_line_bg = cx.theme().colors().editor_active_line_background;
4317 let bounds = Bounds {
4318 origin: point(
4319 range.start,
4320 layout.hitbox.origin.y
4321 + (start_row.as_f32() - scroll_top)
4322 * layout.position_map.line_height,
4323 ),
4324 size: size(
4325 range.end - range.start,
4326 layout.position_map.line_height
4327 * (end_row - start_row.0 + 1) as f32,
4328 ),
4329 };
4330 window.paint_quad(fill(bounds, active_line_bg));
4331 }
4332 }
4333 }
4334
4335 let mut paint_highlight =
4336 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4337 let origin = point(
4338 layout.hitbox.origin.x,
4339 layout.hitbox.origin.y
4340 + (highlight_row_start.as_f32() - scroll_top)
4341 * layout.position_map.line_height,
4342 );
4343 let size = size(
4344 layout.hitbox.size.width,
4345 layout.position_map.line_height
4346 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4347 );
4348 window.paint_quad(fill(Bounds { origin, size }, color));
4349 };
4350
4351 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4352 for (&new_row, &new_background) in &layout.highlighted_rows {
4353 match &mut current_paint {
4354 Some((current_background, current_range)) => {
4355 let current_background = *current_background;
4356 let new_range_started = current_background != new_background
4357 || current_range.end.next_row() != new_row;
4358 if new_range_started {
4359 paint_highlight(
4360 current_range.start,
4361 current_range.end,
4362 current_background,
4363 );
4364 current_paint = Some((new_background, new_row..new_row));
4365 continue;
4366 } else {
4367 current_range.end = current_range.end.next_row();
4368 }
4369 }
4370 None => current_paint = Some((new_background, new_row..new_row)),
4371 };
4372 }
4373 if let Some((color, range)) = current_paint {
4374 paint_highlight(range.start, range.end, color);
4375 }
4376
4377 let scroll_left =
4378 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4379
4380 for (wrap_position, active) in layout.wrap_guides.iter() {
4381 let x = (layout.position_map.text_hitbox.origin.x
4382 + *wrap_position
4383 + layout.position_map.em_width / 2.)
4384 - scroll_left;
4385
4386 let show_scrollbars = {
4387 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4388
4389 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4390 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4391 };
4392
4393 if x < layout.position_map.text_hitbox.origin.x
4394 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4395 {
4396 continue;
4397 }
4398
4399 let color = if *active {
4400 cx.theme().colors().editor_active_wrap_guide
4401 } else {
4402 cx.theme().colors().editor_wrap_guide
4403 };
4404 window.paint_quad(fill(
4405 Bounds {
4406 origin: point(x, layout.position_map.text_hitbox.origin.y),
4407 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4408 },
4409 color,
4410 ));
4411 }
4412 }
4413 })
4414 }
4415
4416 fn paint_indent_guides(
4417 &mut self,
4418 layout: &mut EditorLayout,
4419 window: &mut Window,
4420 cx: &mut App,
4421 ) {
4422 let Some(indent_guides) = &layout.indent_guides else {
4423 return;
4424 };
4425
4426 let faded_color = |color: Hsla, alpha: f32| {
4427 let mut faded = color;
4428 faded.a = alpha;
4429 faded
4430 };
4431
4432 for indent_guide in indent_guides {
4433 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4434 let settings = indent_guide.settings;
4435
4436 // TODO fixed for now, expose them through themes later
4437 const INDENT_AWARE_ALPHA: f32 = 0.2;
4438 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4439 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4440 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4441
4442 let line_color = match (settings.coloring, indent_guide.active) {
4443 (IndentGuideColoring::Disabled, _) => None,
4444 (IndentGuideColoring::Fixed, false) => {
4445 Some(cx.theme().colors().editor_indent_guide)
4446 }
4447 (IndentGuideColoring::Fixed, true) => {
4448 Some(cx.theme().colors().editor_indent_guide_active)
4449 }
4450 (IndentGuideColoring::IndentAware, false) => {
4451 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4452 }
4453 (IndentGuideColoring::IndentAware, true) => {
4454 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4455 }
4456 };
4457
4458 let background_color = match (settings.background_coloring, indent_guide.active) {
4459 (IndentGuideBackgroundColoring::Disabled, _) => None,
4460 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4461 indent_accent_colors,
4462 INDENT_AWARE_BACKGROUND_ALPHA,
4463 )),
4464 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4465 indent_accent_colors,
4466 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4467 )),
4468 };
4469
4470 let requested_line_width = if indent_guide.active {
4471 settings.active_line_width
4472 } else {
4473 settings.line_width
4474 }
4475 .clamp(1, 10);
4476 let mut line_indicator_width = 0.;
4477 if let Some(color) = line_color {
4478 window.paint_quad(fill(
4479 Bounds {
4480 origin: indent_guide.origin,
4481 size: size(px(requested_line_width as f32), indent_guide.length),
4482 },
4483 color,
4484 ));
4485 line_indicator_width = requested_line_width as f32;
4486 }
4487
4488 if let Some(color) = background_color {
4489 let width = indent_guide.single_indent_width - px(line_indicator_width);
4490 window.paint_quad(fill(
4491 Bounds {
4492 origin: point(
4493 indent_guide.origin.x + px(line_indicator_width),
4494 indent_guide.origin.y,
4495 ),
4496 size: size(width, indent_guide.length),
4497 },
4498 color,
4499 ));
4500 }
4501 }
4502 }
4503
4504 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4505 let is_singleton = self.editor.read(cx).is_singleton(cx);
4506
4507 let line_height = layout.position_map.line_height;
4508 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4509
4510 for LineNumberLayout {
4511 shaped_line,
4512 hitbox,
4513 display_row,
4514 } in layout.line_numbers.values()
4515 {
4516 let Some(hitbox) = hitbox else {
4517 continue;
4518 };
4519
4520 let is_active = layout.active_rows.contains_key(&display_row);
4521
4522 let color = if is_active {
4523 cx.theme().colors().editor_active_line_number
4524 } else if !is_singleton && hitbox.is_hovered(window) {
4525 cx.theme().colors().editor_hover_line_number
4526 } else {
4527 cx.theme().colors().editor_line_number
4528 };
4529
4530 let Some(line) = self
4531 .shape_line_number(shaped_line.text.clone(), color, window)
4532 .log_err()
4533 else {
4534 continue;
4535 };
4536 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4537 continue;
4538 };
4539 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4540 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4541 if is_singleton {
4542 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4543 } else {
4544 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4545 }
4546 }
4547 }
4548
4549 fn paint_diff_hunk_gutter_indicators(
4550 layout: &mut EditorLayout,
4551 window: &mut Window,
4552 cx: &mut App,
4553 ) {
4554 if layout.display_hunks.is_empty() {
4555 return;
4556 }
4557
4558 let corners = Corners::all(px(0.));
4559
4560 let line_height = layout.position_map.line_height;
4561 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4562 for (hunk, hitbox) in &layout.display_hunks {
4563 let hunk_to_paint = match hunk {
4564 DisplayDiffHunk::Folded { .. } => {
4565 let hunk_bounds = Self::diff_hunk_bounds(
4566 &layout.position_map.snapshot,
4567 line_height,
4568 layout.gutter_hitbox.bounds,
4569 hunk,
4570 );
4571 Some((
4572 hunk_bounds,
4573 cx.theme().colors().version_control_modified.opacity(0.7),
4574 corners,
4575 &DiffHunkSecondaryStatus::None,
4576 false,
4577 ))
4578 }
4579 DisplayDiffHunk::Unfolded {
4580 status,
4581 display_row_range,
4582 contains_expanded,
4583 ..
4584 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4585 DiffHunkStatus::Added(secondary_status) => (
4586 hunk_hitbox.bounds,
4587 cx.theme().colors().version_control_added.opacity(0.7),
4588 corners,
4589 secondary_status,
4590 *contains_expanded,
4591 ),
4592 DiffHunkStatus::Modified(secondary_status) => (
4593 hunk_hitbox.bounds,
4594 cx.theme().colors().version_control_modified.opacity(0.7),
4595 corners,
4596 secondary_status,
4597 *contains_expanded,
4598 ),
4599 DiffHunkStatus::Removed(secondary_status)
4600 if !display_row_range.is_empty() =>
4601 {
4602 (
4603 hunk_hitbox.bounds,
4604 cx.theme().colors().version_control_deleted.opacity(0.7),
4605 corners,
4606 secondary_status,
4607 *contains_expanded,
4608 )
4609 }
4610 DiffHunkStatus::Removed(secondary_status) => (
4611 Bounds::new(
4612 point(
4613 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4614 hunk_hitbox.origin.y,
4615 ),
4616 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4617 ),
4618 cx.theme().colors().version_control_deleted.opacity(0.7),
4619 Corners::all(1. * line_height),
4620 secondary_status,
4621 *contains_expanded,
4622 ),
4623 }),
4624 };
4625
4626 if let Some((
4627 hunk_bounds,
4628 background_color,
4629 corner_radii,
4630 secondary_status,
4631 contains_expanded,
4632 )) = hunk_to_paint
4633 {
4634 let background = if *secondary_status != DiffHunkSecondaryStatus::None
4635 && contains_expanded
4636 {
4637 pattern_slash(background_color, line_height.0 / 2.5)
4638 } else {
4639 solid_color(background_color)
4640 };
4641
4642 window.paint_quad(quad(
4643 hunk_bounds,
4644 corner_radii,
4645 background,
4646 Edges::default(),
4647 transparent_black(),
4648 ));
4649 }
4650 }
4651 });
4652 }
4653
4654 fn diff_hunk_bounds(
4655 snapshot: &EditorSnapshot,
4656 line_height: Pixels,
4657 gutter_bounds: Bounds<Pixels>,
4658 hunk: &DisplayDiffHunk,
4659 ) -> Bounds<Pixels> {
4660 let scroll_position = snapshot.scroll_position();
4661 let scroll_top = scroll_position.y * line_height;
4662 let gutter_strip_width = (0.275 * line_height).floor();
4663
4664 match hunk {
4665 DisplayDiffHunk::Folded { display_row, .. } => {
4666 let start_y = display_row.as_f32() * line_height - scroll_top;
4667 let end_y = start_y + line_height;
4668 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4669 let highlight_size = size(gutter_strip_width, end_y - start_y);
4670 Bounds::new(highlight_origin, highlight_size)
4671 }
4672 DisplayDiffHunk::Unfolded {
4673 display_row_range,
4674 status,
4675 ..
4676 } => {
4677 if status.is_removed() && display_row_range.is_empty() {
4678 let row = display_row_range.start;
4679
4680 let offset = line_height / 2.;
4681 let start_y = row.as_f32() * line_height - offset - scroll_top;
4682 let end_y = start_y + line_height;
4683
4684 let width = (0.35 * line_height).floor();
4685 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4686 let highlight_size = size(width, end_y - start_y);
4687 Bounds::new(highlight_origin, highlight_size)
4688 } else {
4689 let start_row = display_row_range.start;
4690 let end_row = display_row_range.end;
4691 // If we're in a multibuffer, row range span might include an
4692 // excerpt header, so if we were to draw the marker straight away,
4693 // the hunk might include the rows of that header.
4694 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4695 // Instead, we simply check whether the range we're dealing with includes
4696 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4697 let end_row_in_current_excerpt = snapshot
4698 .blocks_in_range(start_row..end_row)
4699 .find_map(|(start_row, block)| {
4700 if matches!(block, Block::ExcerptBoundary { .. }) {
4701 Some(start_row)
4702 } else {
4703 None
4704 }
4705 })
4706 .unwrap_or(end_row);
4707
4708 let start_y = start_row.as_f32() * line_height - scroll_top;
4709 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4710
4711 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4712 let highlight_size = size(gutter_strip_width, end_y - start_y);
4713 Bounds::new(highlight_origin, highlight_size)
4714 }
4715 }
4716 }
4717 }
4718
4719 fn paint_gutter_indicators(
4720 &self,
4721 layout: &mut EditorLayout,
4722 window: &mut Window,
4723 cx: &mut App,
4724 ) {
4725 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4726 window.with_element_namespace("crease_toggles", |window| {
4727 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4728 crease_toggle.paint(window, cx);
4729 }
4730 });
4731
4732 for test_indicator in layout.test_indicators.iter_mut() {
4733 test_indicator.paint(window, cx);
4734 }
4735
4736 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4737 indicator.paint(window, cx);
4738 }
4739 });
4740 }
4741
4742 fn paint_gutter_highlights(
4743 &self,
4744 layout: &mut EditorLayout,
4745 window: &mut Window,
4746 cx: &mut App,
4747 ) {
4748 for (_, hunk_hitbox) in &layout.display_hunks {
4749 if let Some(hunk_hitbox) = hunk_hitbox {
4750 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4751 }
4752 }
4753
4754 let show_git_gutter = layout
4755 .position_map
4756 .snapshot
4757 .show_git_diff_gutter
4758 .unwrap_or_else(|| {
4759 matches!(
4760 ProjectSettings::get_global(cx).git.git_gutter,
4761 Some(GitGutterSetting::TrackedFiles)
4762 )
4763 });
4764 if show_git_gutter {
4765 Self::paint_diff_hunk_gutter_indicators(layout, window, cx)
4766 }
4767
4768 let highlight_width = 0.275 * layout.position_map.line_height;
4769 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4770 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4771 for (range, color) in &layout.highlighted_gutter_ranges {
4772 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4773 layout.visible_display_row_range.start - DisplayRow(1)
4774 } else {
4775 range.start.row()
4776 };
4777 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4778 layout.visible_display_row_range.end + DisplayRow(1)
4779 } else {
4780 range.end.row()
4781 };
4782
4783 let start_y = layout.gutter_hitbox.top()
4784 + start_row.0 as f32 * layout.position_map.line_height
4785 - layout.position_map.scroll_pixel_position.y;
4786 let end_y = layout.gutter_hitbox.top()
4787 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4788 - layout.position_map.scroll_pixel_position.y;
4789 let bounds = Bounds::from_corners(
4790 point(layout.gutter_hitbox.left(), start_y),
4791 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4792 );
4793 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4794 }
4795 });
4796 }
4797
4798 fn paint_blamed_display_rows(
4799 &self,
4800 layout: &mut EditorLayout,
4801 window: &mut Window,
4802 cx: &mut App,
4803 ) {
4804 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4805 return;
4806 };
4807
4808 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4809 for mut blame_element in blamed_display_rows.into_iter() {
4810 blame_element.paint(window, cx);
4811 }
4812 })
4813 }
4814
4815 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4816 window.with_content_mask(
4817 Some(ContentMask {
4818 bounds: layout.position_map.text_hitbox.bounds,
4819 }),
4820 |window| {
4821 let cursor_style = if self
4822 .editor
4823 .read(cx)
4824 .hovered_link_state
4825 .as_ref()
4826 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4827 {
4828 CursorStyle::PointingHand
4829 } else {
4830 CursorStyle::IBeam
4831 };
4832 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4833
4834 let invisible_display_ranges = self.paint_highlights(layout, window);
4835 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4836 self.paint_redactions(layout, window);
4837 self.paint_cursors(layout, window, cx);
4838 self.paint_inline_blame(layout, window, cx);
4839 self.paint_diff_hunk_controls(layout, window, cx);
4840 window.with_element_namespace("crease_trailers", |window| {
4841 for trailer in layout.crease_trailers.iter_mut().flatten() {
4842 trailer.element.paint(window, cx);
4843 }
4844 });
4845 },
4846 )
4847 }
4848
4849 fn paint_highlights(
4850 &mut self,
4851 layout: &mut EditorLayout,
4852 window: &mut Window,
4853 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4854 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4855 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4856 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4857 for (range, color) in &layout.highlighted_ranges {
4858 self.paint_highlighted_range(
4859 range.clone(),
4860 *color,
4861 Pixels::ZERO,
4862 line_end_overshoot,
4863 layout,
4864 window,
4865 );
4866 }
4867
4868 let corner_radius = 0.15 * layout.position_map.line_height;
4869
4870 for (player_color, selections) in &layout.selections {
4871 for selection in selections.iter() {
4872 self.paint_highlighted_range(
4873 selection.range.clone(),
4874 player_color.selection,
4875 corner_radius,
4876 corner_radius * 2.,
4877 layout,
4878 window,
4879 );
4880
4881 if selection.is_local && !selection.range.is_empty() {
4882 invisible_display_ranges.push(selection.range.clone());
4883 }
4884 }
4885 }
4886 invisible_display_ranges
4887 })
4888 }
4889
4890 fn paint_lines(
4891 &mut self,
4892 invisible_display_ranges: &[Range<DisplayPoint>],
4893 layout: &mut EditorLayout,
4894 window: &mut Window,
4895 cx: &mut App,
4896 ) {
4897 let whitespace_setting = self
4898 .editor
4899 .read(cx)
4900 .buffer
4901 .read(cx)
4902 .settings_at(0, cx)
4903 .show_whitespaces;
4904
4905 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4906 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4907 line_with_invisibles.draw(
4908 layout,
4909 row,
4910 layout.content_origin,
4911 whitespace_setting,
4912 invisible_display_ranges,
4913 window,
4914 cx,
4915 )
4916 }
4917
4918 for line_element in &mut layout.line_elements {
4919 line_element.paint(window, cx);
4920 }
4921 }
4922
4923 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4924 if layout.redacted_ranges.is_empty() {
4925 return;
4926 }
4927
4928 let line_end_overshoot = layout.line_end_overshoot();
4929
4930 // A softer than perfect black
4931 let redaction_color = gpui::rgb(0x0e1111);
4932
4933 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4934 for range in layout.redacted_ranges.iter() {
4935 self.paint_highlighted_range(
4936 range.clone(),
4937 redaction_color.into(),
4938 Pixels::ZERO,
4939 line_end_overshoot,
4940 layout,
4941 window,
4942 );
4943 }
4944 });
4945 }
4946
4947 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4948 for cursor in &mut layout.visible_cursors {
4949 cursor.paint(layout.content_origin, window, cx);
4950 }
4951 }
4952
4953 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4954 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4955
4956 if let Some(scrollbar_layout) = scrollbar_x {
4957 let hitbox = scrollbar_layout.hitbox.clone();
4958 let text_unit_size = scrollbar_layout.text_unit_size;
4959 let visible_range = scrollbar_layout.visible_range.clone();
4960 let thumb_bounds = scrollbar_layout.thumb_bounds();
4961
4962 if scrollbar_layout.visible {
4963 window.paint_layer(hitbox.bounds, |window| {
4964 window.paint_quad(quad(
4965 hitbox.bounds,
4966 Corners::default(),
4967 cx.theme().colors().scrollbar_track_background,
4968 Edges {
4969 top: Pixels::ZERO,
4970 right: Pixels::ZERO,
4971 bottom: Pixels::ZERO,
4972 left: Pixels::ZERO,
4973 },
4974 cx.theme().colors().scrollbar_track_border,
4975 ));
4976
4977 window.paint_quad(quad(
4978 thumb_bounds,
4979 Corners::default(),
4980 cx.theme().colors().scrollbar_thumb_background,
4981 Edges {
4982 top: Pixels::ZERO,
4983 right: Pixels::ZERO,
4984 bottom: Pixels::ZERO,
4985 left: ScrollbarLayout::BORDER_WIDTH,
4986 },
4987 cx.theme().colors().scrollbar_thumb_border,
4988 ));
4989 })
4990 }
4991
4992 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4993
4994 window.on_mouse_event({
4995 let editor = self.editor.clone();
4996
4997 // there may be a way to avoid this clone
4998 let hitbox = hitbox.clone();
4999
5000 let mut mouse_position = window.mouse_position();
5001 move |event: &MouseMoveEvent, phase, window, cx| {
5002 if phase == DispatchPhase::Capture {
5003 return;
5004 }
5005
5006 editor.update(cx, |editor, cx| {
5007 if event.pressed_button == Some(MouseButton::Left)
5008 && editor
5009 .scroll_manager
5010 .is_dragging_scrollbar(Axis::Horizontal)
5011 {
5012 let x = mouse_position.x;
5013 let new_x = event.position.x;
5014 if (hitbox.left()..hitbox.right()).contains(&x) {
5015 let mut position = editor.scroll_position(cx);
5016
5017 position.x += (new_x - x) / text_unit_size;
5018 if position.x < 0.0 {
5019 position.x = 0.0;
5020 }
5021 editor.set_scroll_position(position, window, cx);
5022 }
5023
5024 cx.stop_propagation();
5025 } else {
5026 editor.scroll_manager.set_is_dragging_scrollbar(
5027 Axis::Horizontal,
5028 false,
5029 cx,
5030 );
5031
5032 if hitbox.is_hovered(window) {
5033 editor.scroll_manager.show_scrollbar(window, cx);
5034 }
5035 }
5036 mouse_position = event.position;
5037 })
5038 }
5039 });
5040
5041 if self
5042 .editor
5043 .read(cx)
5044 .scroll_manager
5045 .is_dragging_scrollbar(Axis::Horizontal)
5046 {
5047 window.on_mouse_event({
5048 let editor = self.editor.clone();
5049 move |_: &MouseUpEvent, phase, _, cx| {
5050 if phase == DispatchPhase::Capture {
5051 return;
5052 }
5053
5054 editor.update(cx, |editor, cx| {
5055 editor.scroll_manager.set_is_dragging_scrollbar(
5056 Axis::Horizontal,
5057 false,
5058 cx,
5059 );
5060 cx.stop_propagation();
5061 });
5062 }
5063 });
5064 } else {
5065 window.on_mouse_event({
5066 let editor = self.editor.clone();
5067
5068 move |event: &MouseDownEvent, phase, window, cx| {
5069 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5070 return;
5071 }
5072
5073 editor.update(cx, |editor, cx| {
5074 editor.scroll_manager.set_is_dragging_scrollbar(
5075 Axis::Horizontal,
5076 true,
5077 cx,
5078 );
5079
5080 let x = event.position.x;
5081
5082 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5083 let center_row =
5084 ((x - hitbox.left()) / text_unit_size).round() as u32;
5085 let top_row = center_row.saturating_sub(
5086 (visible_range.end - visible_range.start) as u32 / 2,
5087 );
5088
5089 let mut position = editor.scroll_position(cx);
5090 position.x = top_row as f32;
5091
5092 editor.set_scroll_position(position, window, cx);
5093 } else {
5094 editor.scroll_manager.show_scrollbar(window, cx);
5095 }
5096
5097 cx.stop_propagation();
5098 });
5099 }
5100 });
5101 }
5102 }
5103
5104 if let Some(scrollbar_layout) = scrollbar_y {
5105 let hitbox = scrollbar_layout.hitbox.clone();
5106 let text_unit_size = scrollbar_layout.text_unit_size;
5107 let visible_range = scrollbar_layout.visible_range.clone();
5108 let thumb_bounds = scrollbar_layout.thumb_bounds();
5109
5110 if scrollbar_layout.visible {
5111 window.paint_layer(hitbox.bounds, |window| {
5112 window.paint_quad(quad(
5113 hitbox.bounds,
5114 Corners::default(),
5115 cx.theme().colors().scrollbar_track_background,
5116 Edges {
5117 top: Pixels::ZERO,
5118 right: Pixels::ZERO,
5119 bottom: Pixels::ZERO,
5120 left: ScrollbarLayout::BORDER_WIDTH,
5121 },
5122 cx.theme().colors().scrollbar_track_border,
5123 ));
5124
5125 let fast_markers =
5126 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5127 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5128 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5129
5130 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5131 for marker in markers.iter().chain(&fast_markers) {
5132 let mut marker = marker.clone();
5133 marker.bounds.origin += hitbox.origin;
5134 window.paint_quad(marker);
5135 }
5136
5137 window.paint_quad(quad(
5138 thumb_bounds,
5139 Corners::default(),
5140 cx.theme().colors().scrollbar_thumb_background,
5141 Edges {
5142 top: Pixels::ZERO,
5143 right: Pixels::ZERO,
5144 bottom: Pixels::ZERO,
5145 left: ScrollbarLayout::BORDER_WIDTH,
5146 },
5147 cx.theme().colors().scrollbar_thumb_border,
5148 ));
5149 });
5150 }
5151
5152 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5153
5154 window.on_mouse_event({
5155 let editor = self.editor.clone();
5156
5157 let hitbox = hitbox.clone();
5158
5159 let mut mouse_position = window.mouse_position();
5160 move |event: &MouseMoveEvent, phase, window, cx| {
5161 if phase == DispatchPhase::Capture {
5162 return;
5163 }
5164
5165 editor.update(cx, |editor, cx| {
5166 if event.pressed_button == Some(MouseButton::Left)
5167 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5168 {
5169 let y = mouse_position.y;
5170 let new_y = event.position.y;
5171 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5172 let mut position = editor.scroll_position(cx);
5173 position.y += (new_y - y) / text_unit_size;
5174 if position.y < 0.0 {
5175 position.y = 0.0;
5176 }
5177 editor.set_scroll_position(position, window, cx);
5178 }
5179 } else {
5180 editor.scroll_manager.set_is_dragging_scrollbar(
5181 Axis::Vertical,
5182 false,
5183 cx,
5184 );
5185
5186 if hitbox.is_hovered(window) {
5187 editor.scroll_manager.show_scrollbar(window, cx);
5188 }
5189 }
5190 mouse_position = event.position;
5191 })
5192 }
5193 });
5194
5195 if self
5196 .editor
5197 .read(cx)
5198 .scroll_manager
5199 .is_dragging_scrollbar(Axis::Vertical)
5200 {
5201 window.on_mouse_event({
5202 let editor = self.editor.clone();
5203 move |_: &MouseUpEvent, phase, _, cx| {
5204 if phase == DispatchPhase::Capture {
5205 return;
5206 }
5207
5208 editor.update(cx, |editor, cx| {
5209 editor.scroll_manager.set_is_dragging_scrollbar(
5210 Axis::Vertical,
5211 false,
5212 cx,
5213 );
5214 cx.stop_propagation();
5215 });
5216 }
5217 });
5218 } else {
5219 window.on_mouse_event({
5220 let editor = self.editor.clone();
5221
5222 move |event: &MouseDownEvent, phase, window, cx| {
5223 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5224 return;
5225 }
5226
5227 editor.update(cx, |editor, cx| {
5228 editor.scroll_manager.set_is_dragging_scrollbar(
5229 Axis::Vertical,
5230 true,
5231 cx,
5232 );
5233
5234 let y = event.position.y;
5235 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5236 let center_row =
5237 ((y - hitbox.top()) / text_unit_size).round() as u32;
5238 let top_row = center_row.saturating_sub(
5239 (visible_range.end - visible_range.start) as u32 / 2,
5240 );
5241 let mut position = editor.scroll_position(cx);
5242 position.y = top_row as f32;
5243 editor.set_scroll_position(position, window, cx);
5244 } else {
5245 editor.scroll_manager.show_scrollbar(window, cx);
5246 }
5247
5248 cx.stop_propagation();
5249 });
5250 }
5251 });
5252 }
5253 }
5254 }
5255
5256 fn collect_fast_scrollbar_markers(
5257 &self,
5258 layout: &EditorLayout,
5259 scrollbar_layout: &ScrollbarLayout,
5260 cx: &mut App,
5261 ) -> Vec<PaintQuad> {
5262 const LIMIT: usize = 100;
5263 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5264 return vec![];
5265 }
5266 let cursor_ranges = layout
5267 .cursors
5268 .iter()
5269 .map(|(point, color)| ColoredRange {
5270 start: point.row(),
5271 end: point.row(),
5272 color: *color,
5273 })
5274 .collect_vec();
5275 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5276 }
5277
5278 fn refresh_slow_scrollbar_markers(
5279 &self,
5280 layout: &EditorLayout,
5281 scrollbar_layout: &ScrollbarLayout,
5282 window: &mut Window,
5283 cx: &mut App,
5284 ) {
5285 self.editor.update(cx, |editor, cx| {
5286 if !editor.is_singleton(cx)
5287 || !editor
5288 .scrollbar_marker_state
5289 .should_refresh(scrollbar_layout.hitbox.size)
5290 {
5291 return;
5292 }
5293
5294 let scrollbar_layout = scrollbar_layout.clone();
5295 let background_highlights = editor.background_highlights.clone();
5296 let snapshot = layout.position_map.snapshot.clone();
5297 let theme = cx.theme().clone();
5298 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5299
5300 editor.scrollbar_marker_state.dirty = false;
5301 editor.scrollbar_marker_state.pending_refresh =
5302 Some(cx.spawn_in(window, |editor, mut cx| async move {
5303 let scrollbar_size = scrollbar_layout.hitbox.size;
5304 let scrollbar_markers = cx
5305 .background_executor()
5306 .spawn(async move {
5307 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5308 let mut marker_quads = Vec::new();
5309 if scrollbar_settings.git_diff {
5310 let marker_row_ranges =
5311 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5312 let start_display_row =
5313 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5314 .to_display_point(&snapshot.display_snapshot)
5315 .row();
5316 let mut end_display_row =
5317 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5318 .to_display_point(&snapshot.display_snapshot)
5319 .row();
5320 if end_display_row != start_display_row {
5321 end_display_row.0 -= 1;
5322 }
5323 let color = match &hunk.status() {
5324 DiffHunkStatus::Added(_) => {
5325 theme.colors().version_control_added
5326 }
5327 DiffHunkStatus::Modified(_) => {
5328 theme.colors().version_control_modified
5329 }
5330 DiffHunkStatus::Removed(_) => {
5331 theme.colors().version_control_deleted
5332 }
5333 };
5334 ColoredRange {
5335 start: start_display_row,
5336 end: end_display_row,
5337 color,
5338 }
5339 });
5340
5341 marker_quads.extend(
5342 scrollbar_layout
5343 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5344 );
5345 }
5346
5347 for (background_highlight_id, (_, background_ranges)) in
5348 background_highlights.iter()
5349 {
5350 let is_search_highlights = *background_highlight_id
5351 == TypeId::of::<BufferSearchHighlights>();
5352 let is_symbol_occurrences = *background_highlight_id
5353 == TypeId::of::<DocumentHighlightRead>()
5354 || *background_highlight_id
5355 == TypeId::of::<DocumentHighlightWrite>();
5356 if (is_search_highlights && scrollbar_settings.search_results)
5357 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5358 {
5359 let mut color = theme.status().info;
5360 if is_symbol_occurrences {
5361 color.fade_out(0.5);
5362 }
5363 let marker_row_ranges = background_ranges.iter().map(|range| {
5364 let display_start = range
5365 .start
5366 .to_display_point(&snapshot.display_snapshot);
5367 let display_end =
5368 range.end.to_display_point(&snapshot.display_snapshot);
5369 ColoredRange {
5370 start: display_start.row(),
5371 end: display_end.row(),
5372 color,
5373 }
5374 });
5375 marker_quads.extend(
5376 scrollbar_layout
5377 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5378 );
5379 }
5380 }
5381
5382 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5383 let diagnostics = snapshot
5384 .buffer_snapshot
5385 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5386 // Don't show diagnostics the user doesn't care about
5387 .filter(|diagnostic| {
5388 match (
5389 scrollbar_settings.diagnostics,
5390 diagnostic.diagnostic.severity,
5391 ) {
5392 (ScrollbarDiagnostics::All, _) => true,
5393 (
5394 ScrollbarDiagnostics::Error,
5395 DiagnosticSeverity::ERROR,
5396 ) => true,
5397 (
5398 ScrollbarDiagnostics::Warning,
5399 DiagnosticSeverity::ERROR
5400 | DiagnosticSeverity::WARNING,
5401 ) => true,
5402 (
5403 ScrollbarDiagnostics::Information,
5404 DiagnosticSeverity::ERROR
5405 | DiagnosticSeverity::WARNING
5406 | DiagnosticSeverity::INFORMATION,
5407 ) => true,
5408 (_, _) => false,
5409 }
5410 })
5411 // We want to sort by severity, in order to paint the most severe diagnostics last.
5412 .sorted_by_key(|diagnostic| {
5413 std::cmp::Reverse(diagnostic.diagnostic.severity)
5414 });
5415
5416 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5417 let start_display = diagnostic
5418 .range
5419 .start
5420 .to_display_point(&snapshot.display_snapshot);
5421 let end_display = diagnostic
5422 .range
5423 .end
5424 .to_display_point(&snapshot.display_snapshot);
5425 let color = match diagnostic.diagnostic.severity {
5426 DiagnosticSeverity::ERROR => theme.status().error,
5427 DiagnosticSeverity::WARNING => theme.status().warning,
5428 DiagnosticSeverity::INFORMATION => theme.status().info,
5429 _ => theme.status().hint,
5430 };
5431 ColoredRange {
5432 start: start_display.row(),
5433 end: end_display.row(),
5434 color,
5435 }
5436 });
5437 marker_quads.extend(
5438 scrollbar_layout
5439 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5440 );
5441 }
5442
5443 Arc::from(marker_quads)
5444 })
5445 .await;
5446
5447 editor.update(&mut cx, |editor, cx| {
5448 editor.scrollbar_marker_state.markers = scrollbar_markers;
5449 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5450 editor.scrollbar_marker_state.pending_refresh = None;
5451 cx.notify();
5452 })?;
5453
5454 Ok(())
5455 }));
5456 });
5457 }
5458
5459 #[allow(clippy::too_many_arguments)]
5460 fn paint_highlighted_range(
5461 &self,
5462 range: Range<DisplayPoint>,
5463 color: Hsla,
5464 corner_radius: Pixels,
5465 line_end_overshoot: Pixels,
5466 layout: &EditorLayout,
5467 window: &mut Window,
5468 ) {
5469 let start_row = layout.visible_display_row_range.start;
5470 let end_row = layout.visible_display_row_range.end;
5471 if range.start != range.end {
5472 let row_range = if range.end.column() == 0 {
5473 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5474 } else {
5475 cmp::max(range.start.row(), start_row)
5476 ..cmp::min(range.end.row().next_row(), end_row)
5477 };
5478
5479 let highlighted_range = HighlightedRange {
5480 color,
5481 line_height: layout.position_map.line_height,
5482 corner_radius,
5483 start_y: layout.content_origin.y
5484 + row_range.start.as_f32() * layout.position_map.line_height
5485 - layout.position_map.scroll_pixel_position.y,
5486 lines: row_range
5487 .iter_rows()
5488 .map(|row| {
5489 let line_layout =
5490 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5491 HighlightedRangeLine {
5492 start_x: if row == range.start.row() {
5493 layout.content_origin.x
5494 + line_layout.x_for_index(range.start.column() as usize)
5495 - layout.position_map.scroll_pixel_position.x
5496 } else {
5497 layout.content_origin.x
5498 - layout.position_map.scroll_pixel_position.x
5499 },
5500 end_x: if row == range.end.row() {
5501 layout.content_origin.x
5502 + line_layout.x_for_index(range.end.column() as usize)
5503 - layout.position_map.scroll_pixel_position.x
5504 } else {
5505 layout.content_origin.x + line_layout.width + line_end_overshoot
5506 - layout.position_map.scroll_pixel_position.x
5507 },
5508 }
5509 })
5510 .collect(),
5511 };
5512
5513 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5514 }
5515 }
5516
5517 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5518 if let Some(mut inline_blame) = layout.inline_blame.take() {
5519 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5520 inline_blame.paint(window, cx);
5521 })
5522 }
5523 }
5524
5525 fn paint_diff_hunk_controls(
5526 &mut self,
5527 layout: &mut EditorLayout,
5528 window: &mut Window,
5529 cx: &mut App,
5530 ) {
5531 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5532 diff_hunk_control.paint(window, cx);
5533 }
5534 }
5535
5536 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5537 for mut block in layout.blocks.drain(..) {
5538 block.element.paint(window, cx);
5539 }
5540 }
5541
5542 fn paint_inline_completion_popover(
5543 &mut self,
5544 layout: &mut EditorLayout,
5545 window: &mut Window,
5546 cx: &mut App,
5547 ) {
5548 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5549 inline_completion_popover.paint(window, cx);
5550 }
5551 }
5552
5553 fn paint_mouse_context_menu(
5554 &mut self,
5555 layout: &mut EditorLayout,
5556 window: &mut Window,
5557 cx: &mut App,
5558 ) {
5559 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5560 mouse_context_menu.paint(window, cx);
5561 }
5562 }
5563
5564 fn paint_scroll_wheel_listener(
5565 &mut self,
5566 layout: &EditorLayout,
5567 window: &mut Window,
5568 cx: &mut App,
5569 ) {
5570 window.on_mouse_event({
5571 let position_map = layout.position_map.clone();
5572 let editor = self.editor.clone();
5573 let hitbox = layout.hitbox.clone();
5574 let mut delta = ScrollDelta::default();
5575
5576 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5577 // accidentally turn off their scrolling.
5578 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5579
5580 move |event: &ScrollWheelEvent, phase, window, cx| {
5581 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5582 delta = delta.coalesce(event.delta);
5583 editor.update(cx, |editor, cx| {
5584 let position_map: &PositionMap = &position_map;
5585
5586 let line_height = position_map.line_height;
5587 let max_glyph_width = position_map.em_width;
5588 let (delta, axis) = match delta {
5589 gpui::ScrollDelta::Pixels(mut pixels) => {
5590 //Trackpad
5591 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5592 (pixels, axis)
5593 }
5594
5595 gpui::ScrollDelta::Lines(lines) => {
5596 //Not trackpad
5597 let pixels =
5598 point(lines.x * max_glyph_width, lines.y * line_height);
5599 (pixels, None)
5600 }
5601 };
5602
5603 let current_scroll_position = position_map.snapshot.scroll_position();
5604 let x = (current_scroll_position.x * max_glyph_width
5605 - (delta.x * scroll_sensitivity))
5606 / max_glyph_width;
5607 let y = (current_scroll_position.y * line_height
5608 - (delta.y * scroll_sensitivity))
5609 / line_height;
5610 let mut scroll_position =
5611 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5612 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5613 if forbid_vertical_scroll {
5614 scroll_position.y = current_scroll_position.y;
5615 }
5616
5617 if scroll_position != current_scroll_position {
5618 editor.scroll(scroll_position, axis, window, cx);
5619 cx.stop_propagation();
5620 } else if y < 0. {
5621 // Due to clamping, we may fail to detect cases of overscroll to the top;
5622 // We want the scroll manager to get an update in such cases and detect the change of direction
5623 // on the next frame.
5624 cx.notify();
5625 }
5626 });
5627 }
5628 }
5629 });
5630 }
5631
5632 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5633 self.paint_scroll_wheel_listener(layout, window, cx);
5634
5635 window.on_mouse_event({
5636 let position_map = layout.position_map.clone();
5637 let editor = self.editor.clone();
5638 let multi_buffer_range =
5639 layout
5640 .display_hunks
5641 .iter()
5642 .find_map(|(hunk, hunk_hitbox)| match hunk {
5643 DisplayDiffHunk::Folded { .. } => None,
5644 DisplayDiffHunk::Unfolded {
5645 multi_buffer_range, ..
5646 } => {
5647 if hunk_hitbox
5648 .as_ref()
5649 .map(|hitbox| hitbox.is_hovered(window))
5650 .unwrap_or(false)
5651 {
5652 Some(multi_buffer_range.clone())
5653 } else {
5654 None
5655 }
5656 }
5657 });
5658 let line_numbers = layout.line_numbers.clone();
5659
5660 move |event: &MouseDownEvent, phase, window, cx| {
5661 if phase == DispatchPhase::Bubble {
5662 match event.button {
5663 MouseButton::Left => editor.update(cx, |editor, cx| {
5664 let pending_mouse_down = editor
5665 .pending_mouse_down
5666 .get_or_insert_with(Default::default)
5667 .clone();
5668
5669 *pending_mouse_down.borrow_mut() = Some(event.clone());
5670
5671 Self::mouse_left_down(
5672 editor,
5673 event,
5674 multi_buffer_range.clone(),
5675 &position_map,
5676 line_numbers.as_ref(),
5677 window,
5678 cx,
5679 );
5680 }),
5681 MouseButton::Right => editor.update(cx, |editor, cx| {
5682 Self::mouse_right_down(editor, event, &position_map, window, cx);
5683 }),
5684 MouseButton::Middle => editor.update(cx, |editor, cx| {
5685 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5686 }),
5687 _ => {}
5688 };
5689 }
5690 }
5691 });
5692
5693 window.on_mouse_event({
5694 let editor = self.editor.clone();
5695 let position_map = layout.position_map.clone();
5696
5697 move |event: &MouseUpEvent, phase, window, cx| {
5698 if phase == DispatchPhase::Bubble {
5699 editor.update(cx, |editor, cx| {
5700 Self::mouse_up(editor, event, &position_map, window, cx)
5701 });
5702 }
5703 }
5704 });
5705
5706 window.on_mouse_event({
5707 let editor = self.editor.clone();
5708 let position_map = layout.position_map.clone();
5709 let mut captured_mouse_down = None;
5710
5711 move |event: &MouseUpEvent, phase, window, cx| match phase {
5712 // Clear the pending mouse down during the capture phase,
5713 // so that it happens even if another event handler stops
5714 // propagation.
5715 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5716 let pending_mouse_down = editor
5717 .pending_mouse_down
5718 .get_or_insert_with(Default::default)
5719 .clone();
5720
5721 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5722 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5723 captured_mouse_down = pending_mouse_down.take();
5724 window.refresh();
5725 }
5726 }),
5727 // Fire click handlers during the bubble phase.
5728 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5729 if let Some(mouse_down) = captured_mouse_down.take() {
5730 let event = ClickEvent {
5731 down: mouse_down,
5732 up: event.clone(),
5733 };
5734 Self::click(editor, &event, &position_map, window, cx);
5735 }
5736 }),
5737 }
5738 });
5739
5740 window.on_mouse_event({
5741 let position_map = layout.position_map.clone();
5742 let editor = self.editor.clone();
5743
5744 move |event: &MouseMoveEvent, phase, window, cx| {
5745 if phase == DispatchPhase::Bubble {
5746 editor.update(cx, |editor, cx| {
5747 if editor.hover_state.focused(window, cx) {
5748 return;
5749 }
5750 if event.pressed_button == Some(MouseButton::Left)
5751 || event.pressed_button == Some(MouseButton::Middle)
5752 {
5753 Self::mouse_dragged(editor, event, &position_map, window, cx)
5754 }
5755
5756 Self::mouse_moved(editor, event, &position_map, window, cx)
5757 });
5758 }
5759 }
5760 });
5761 }
5762
5763 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5764 bounds.top_right().x - self.style.scrollbar_width
5765 }
5766
5767 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5768 let style = &self.style;
5769 let font_size = style.text.font_size.to_pixels(window.rem_size());
5770 let layout = window
5771 .text_system()
5772 .shape_line(
5773 SharedString::from(" ".repeat(column)),
5774 font_size,
5775 &[TextRun {
5776 len: column,
5777 font: style.text.font(),
5778 color: Hsla::default(),
5779 background_color: None,
5780 underline: None,
5781 strikethrough: None,
5782 }],
5783 )
5784 .unwrap();
5785
5786 layout.width
5787 }
5788
5789 fn max_line_number_width(
5790 &self,
5791 snapshot: &EditorSnapshot,
5792 window: &mut Window,
5793 cx: &mut App,
5794 ) -> Pixels {
5795 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5796 self.column_pixels(digit_count, window, cx)
5797 }
5798
5799 fn shape_line_number(
5800 &self,
5801 text: SharedString,
5802 color: Hsla,
5803 window: &mut Window,
5804 ) -> anyhow::Result<ShapedLine> {
5805 let run = TextRun {
5806 len: text.len(),
5807 font: self.style.text.font(),
5808 color,
5809 background_color: None,
5810 underline: None,
5811 strikethrough: None,
5812 };
5813 window.text_system().shape_line(
5814 text,
5815 self.style.text.font_size.to_pixels(window.rem_size()),
5816 &[run],
5817 )
5818 }
5819}
5820
5821fn header_jump_data(
5822 snapshot: &EditorSnapshot,
5823 block_row_start: DisplayRow,
5824 height: u32,
5825 for_excerpt: &ExcerptInfo,
5826) -> JumpData {
5827 let range = &for_excerpt.range;
5828 let buffer = &for_excerpt.buffer;
5829 let jump_anchor = range
5830 .primary
5831 .as_ref()
5832 .map_or(range.context.start, |primary| primary.start);
5833
5834 let excerpt_start = range.context.start;
5835 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5836 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5837 0
5838 } else {
5839 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5840 jump_position.row.saturating_sub(excerpt_start_point.row)
5841 };
5842
5843 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5844 .saturating_sub(
5845 snapshot
5846 .scroll_anchor
5847 .scroll_position(&snapshot.display_snapshot)
5848 .y as u32,
5849 );
5850
5851 JumpData::MultiBufferPoint {
5852 excerpt_id: for_excerpt.id,
5853 anchor: jump_anchor,
5854 position: jump_position,
5855 line_offset_from_top,
5856 }
5857}
5858
5859pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5860
5861impl AcceptEditPredictionBinding {
5862 pub fn keystroke(&self) -> Option<&Keystroke> {
5863 if let Some(binding) = self.0.as_ref() {
5864 match &binding.keystrokes() {
5865 [keystroke] => Some(keystroke),
5866 _ => None,
5867 }
5868 } else {
5869 None
5870 }
5871 }
5872}
5873
5874#[allow(clippy::too_many_arguments)]
5875fn prepaint_gutter_button(
5876 button: IconButton,
5877 row: DisplayRow,
5878 line_height: Pixels,
5879 gutter_dimensions: &GutterDimensions,
5880 scroll_pixel_position: gpui::Point<Pixels>,
5881 gutter_hitbox: &Hitbox,
5882 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5883 window: &mut Window,
5884 cx: &mut App,
5885) -> AnyElement {
5886 let mut button = button.into_any_element();
5887 let available_space = size(
5888 AvailableSpace::MinContent,
5889 AvailableSpace::Definite(line_height),
5890 );
5891 let indicator_size = button.layout_as_root(available_space, window, cx);
5892
5893 let blame_width = gutter_dimensions.git_blame_entries_width;
5894 let gutter_width = rows_with_hunk_bounds
5895 .get(&row)
5896 .map(|bounds| bounds.size.width);
5897 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5898
5899 let mut x = left_offset;
5900 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5901 - indicator_size.width
5902 - left_offset;
5903 x += available_width / 2.;
5904
5905 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5906 y += (line_height - indicator_size.height) / 2.;
5907
5908 button.prepaint_as_root(
5909 gutter_hitbox.origin + point(x, y),
5910 available_space,
5911 window,
5912 cx,
5913 );
5914 button
5915}
5916
5917fn render_inline_blame_entry(
5918 blame: &gpui::Entity<GitBlame>,
5919 blame_entry: BlameEntry,
5920 style: &EditorStyle,
5921 workspace: Option<WeakEntity<Workspace>>,
5922 cx: &mut App,
5923) -> AnyElement {
5924 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5925
5926 let author = blame_entry.author.as_deref().unwrap_or_default();
5927 let summary_enabled = ProjectSettings::get_global(cx)
5928 .git
5929 .show_inline_commit_summary();
5930
5931 let text = match blame_entry.summary.as_ref() {
5932 Some(summary) if summary_enabled => {
5933 format!("{}, {} - {}", author, relative_timestamp, summary)
5934 }
5935 _ => format!("{}, {}", author, relative_timestamp),
5936 };
5937
5938 let details = blame.read(cx).details_for_entry(&blame_entry);
5939
5940 let tooltip =
5941 cx.new(|_| CommitTooltip::blame_entry(blame_entry, details, style.clone(), workspace));
5942
5943 h_flex()
5944 .id("inline-blame")
5945 .w_full()
5946 .font_family(style.text.font().family)
5947 .text_color(cx.theme().status().hint)
5948 .line_height(style.text.line_height)
5949 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5950 .child(text)
5951 .gap_2()
5952 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5953 .into_any()
5954}
5955
5956fn render_blame_entry(
5957 ix: usize,
5958 blame: &gpui::Entity<GitBlame>,
5959 blame_entry: BlameEntry,
5960 style: &EditorStyle,
5961 last_used_color: &mut Option<(PlayerColor, Oid)>,
5962 editor: Entity<Editor>,
5963 cx: &mut App,
5964) -> AnyElement {
5965 let mut sha_color = cx
5966 .theme()
5967 .players()
5968 .color_for_participant(blame_entry.sha.into());
5969 // If the last color we used is the same as the one we get for this line, but
5970 // the commit SHAs are different, then we try again to get a different color.
5971 match *last_used_color {
5972 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5973 let index: u32 = blame_entry.sha.into();
5974 sha_color = cx.theme().players().color_for_participant(index + 1);
5975 }
5976 _ => {}
5977 };
5978 last_used_color.replace((sha_color, blame_entry.sha));
5979
5980 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5981
5982 let short_commit_id = blame_entry.sha.display_short();
5983
5984 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5985 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5986
5987 let details = blame.read(cx).details_for_entry(&blame_entry);
5988
5989 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5990
5991 let tooltip = cx.new(|_| {
5992 CommitTooltip::blame_entry(
5993 blame_entry.clone(),
5994 details.clone(),
5995 style.clone(),
5996 workspace,
5997 )
5998 });
5999
6000 h_flex()
6001 .w_full()
6002 .justify_between()
6003 .font_family(style.text.font().family)
6004 .line_height(style.text.line_height)
6005 .id(("blame", ix))
6006 .text_color(cx.theme().status().hint)
6007 .pr_2()
6008 .gap_2()
6009 .child(
6010 h_flex()
6011 .items_center()
6012 .gap_2()
6013 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6014 .child(name),
6015 )
6016 .child(relative_timestamp)
6017 .on_mouse_down(MouseButton::Right, {
6018 let blame_entry = blame_entry.clone();
6019 let details = details.clone();
6020 move |event, window, cx| {
6021 deploy_blame_entry_context_menu(
6022 &blame_entry,
6023 details.as_ref(),
6024 editor.clone(),
6025 event.position,
6026 window,
6027 cx,
6028 );
6029 }
6030 })
6031 .hover(|style| style.bg(cx.theme().colors().element_hover))
6032 .when_some(
6033 details.and_then(|details| details.permalink),
6034 |this, url| {
6035 let url = url.clone();
6036 this.cursor_pointer().on_click(move |_, _, cx| {
6037 cx.stop_propagation();
6038 cx.open_url(url.as_str())
6039 })
6040 },
6041 )
6042 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6043 .into_any()
6044}
6045
6046fn deploy_blame_entry_context_menu(
6047 blame_entry: &BlameEntry,
6048 details: Option<&ParsedCommitMessage>,
6049 editor: Entity<Editor>,
6050 position: gpui::Point<Pixels>,
6051 window: &mut Window,
6052 cx: &mut App,
6053) {
6054 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6055 let sha = format!("{}", blame_entry.sha);
6056 menu.on_blur_subscription(Subscription::new(|| {}))
6057 .entry("Copy commit SHA", None, move |_, cx| {
6058 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6059 })
6060 .when_some(
6061 details.and_then(|details| details.permalink.clone()),
6062 |this, url| {
6063 this.entry("Open permalink", None, move |_, cx| {
6064 cx.open_url(url.as_str())
6065 })
6066 },
6067 )
6068 });
6069
6070 editor.update(cx, move |editor, cx| {
6071 editor.mouse_context_menu = Some(MouseContextMenu::new(
6072 MenuPosition::PinnedToScreen(position),
6073 context_menu,
6074 window,
6075 cx,
6076 ));
6077 cx.notify();
6078 });
6079}
6080
6081#[derive(Debug)]
6082pub(crate) struct LineWithInvisibles {
6083 fragments: SmallVec<[LineFragment; 1]>,
6084 invisibles: Vec<Invisible>,
6085 len: usize,
6086 width: Pixels,
6087 font_size: Pixels,
6088}
6089
6090#[allow(clippy::large_enum_variant)]
6091enum LineFragment {
6092 Text(ShapedLine),
6093 Element {
6094 element: Option<AnyElement>,
6095 size: Size<Pixels>,
6096 len: usize,
6097 },
6098}
6099
6100impl fmt::Debug for LineFragment {
6101 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6102 match self {
6103 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6104 LineFragment::Element { size, len, .. } => f
6105 .debug_struct("Element")
6106 .field("size", size)
6107 .field("len", len)
6108 .finish(),
6109 }
6110 }
6111}
6112
6113impl LineWithInvisibles {
6114 #[allow(clippy::too_many_arguments)]
6115 fn from_chunks<'a>(
6116 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6117 editor_style: &EditorStyle,
6118 max_line_len: usize,
6119 max_line_count: usize,
6120 editor_mode: EditorMode,
6121 text_width: Pixels,
6122 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6123 window: &mut Window,
6124 cx: &mut App,
6125 ) -> Vec<Self> {
6126 let text_style = &editor_style.text;
6127 let mut layouts = Vec::with_capacity(max_line_count);
6128 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6129 let mut line = String::new();
6130 let mut invisibles = Vec::new();
6131 let mut width = Pixels::ZERO;
6132 let mut len = 0;
6133 let mut styles = Vec::new();
6134 let mut non_whitespace_added = false;
6135 let mut row = 0;
6136 let mut line_exceeded_max_len = false;
6137 let font_size = text_style.font_size.to_pixels(window.rem_size());
6138
6139 let ellipsis = SharedString::from("⋯");
6140
6141 for highlighted_chunk in chunks.chain([HighlightedChunk {
6142 text: "\n",
6143 style: None,
6144 is_tab: false,
6145 replacement: None,
6146 }]) {
6147 if let Some(replacement) = highlighted_chunk.replacement {
6148 if !line.is_empty() {
6149 let shaped_line = window
6150 .text_system()
6151 .shape_line(line.clone().into(), font_size, &styles)
6152 .unwrap();
6153 width += shaped_line.width;
6154 len += shaped_line.len;
6155 fragments.push(LineFragment::Text(shaped_line));
6156 line.clear();
6157 styles.clear();
6158 }
6159
6160 match replacement {
6161 ChunkReplacement::Renderer(renderer) => {
6162 let available_width = if renderer.constrain_width {
6163 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6164 ellipsis.clone()
6165 } else {
6166 SharedString::from(Arc::from(highlighted_chunk.text))
6167 };
6168 let shaped_line = window
6169 .text_system()
6170 .shape_line(
6171 chunk,
6172 font_size,
6173 &[text_style.to_run(highlighted_chunk.text.len())],
6174 )
6175 .unwrap();
6176 AvailableSpace::Definite(shaped_line.width)
6177 } else {
6178 AvailableSpace::MinContent
6179 };
6180
6181 let mut element = (renderer.render)(&mut ChunkRendererContext {
6182 context: cx,
6183 window,
6184 max_width: text_width,
6185 });
6186 let line_height = text_style.line_height_in_pixels(window.rem_size());
6187 let size = element.layout_as_root(
6188 size(available_width, AvailableSpace::Definite(line_height)),
6189 window,
6190 cx,
6191 );
6192
6193 width += size.width;
6194 len += highlighted_chunk.text.len();
6195 fragments.push(LineFragment::Element {
6196 element: Some(element),
6197 size,
6198 len: highlighted_chunk.text.len(),
6199 });
6200 }
6201 ChunkReplacement::Str(x) => {
6202 let text_style = if let Some(style) = highlighted_chunk.style {
6203 Cow::Owned(text_style.clone().highlight(style))
6204 } else {
6205 Cow::Borrowed(text_style)
6206 };
6207
6208 let run = TextRun {
6209 len: x.len(),
6210 font: text_style.font(),
6211 color: text_style.color,
6212 background_color: text_style.background_color,
6213 underline: text_style.underline,
6214 strikethrough: text_style.strikethrough,
6215 };
6216 let line_layout = window
6217 .text_system()
6218 .shape_line(x, font_size, &[run])
6219 .unwrap()
6220 .with_len(highlighted_chunk.text.len());
6221
6222 width += line_layout.width;
6223 len += highlighted_chunk.text.len();
6224 fragments.push(LineFragment::Text(line_layout))
6225 }
6226 }
6227 } else {
6228 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6229 if ix > 0 {
6230 let shaped_line = window
6231 .text_system()
6232 .shape_line(line.clone().into(), font_size, &styles)
6233 .unwrap();
6234 width += shaped_line.width;
6235 len += shaped_line.len;
6236 fragments.push(LineFragment::Text(shaped_line));
6237 layouts.push(Self {
6238 width: mem::take(&mut width),
6239 len: mem::take(&mut len),
6240 fragments: mem::take(&mut fragments),
6241 invisibles: std::mem::take(&mut invisibles),
6242 font_size,
6243 });
6244
6245 line.clear();
6246 styles.clear();
6247 row += 1;
6248 line_exceeded_max_len = false;
6249 non_whitespace_added = false;
6250 if row == max_line_count {
6251 return layouts;
6252 }
6253 }
6254
6255 if !line_chunk.is_empty() && !line_exceeded_max_len {
6256 let text_style = if let Some(style) = highlighted_chunk.style {
6257 Cow::Owned(text_style.clone().highlight(style))
6258 } else {
6259 Cow::Borrowed(text_style)
6260 };
6261
6262 if line.len() + line_chunk.len() > max_line_len {
6263 let mut chunk_len = max_line_len - line.len();
6264 while !line_chunk.is_char_boundary(chunk_len) {
6265 chunk_len -= 1;
6266 }
6267 line_chunk = &line_chunk[..chunk_len];
6268 line_exceeded_max_len = true;
6269 }
6270
6271 styles.push(TextRun {
6272 len: line_chunk.len(),
6273 font: text_style.font(),
6274 color: text_style.color,
6275 background_color: text_style.background_color,
6276 underline: text_style.underline,
6277 strikethrough: text_style.strikethrough,
6278 });
6279
6280 if editor_mode == EditorMode::Full {
6281 // Line wrap pads its contents with fake whitespaces,
6282 // avoid printing them
6283 let is_soft_wrapped = is_row_soft_wrapped(row);
6284 if highlighted_chunk.is_tab {
6285 if non_whitespace_added || !is_soft_wrapped {
6286 invisibles.push(Invisible::Tab {
6287 line_start_offset: line.len(),
6288 line_end_offset: line.len() + line_chunk.len(),
6289 });
6290 }
6291 } else {
6292 invisibles.extend(line_chunk.char_indices().filter_map(
6293 |(index, c)| {
6294 let is_whitespace = c.is_whitespace();
6295 non_whitespace_added |= !is_whitespace;
6296 if is_whitespace
6297 && (non_whitespace_added || !is_soft_wrapped)
6298 {
6299 Some(Invisible::Whitespace {
6300 line_offset: line.len() + index,
6301 })
6302 } else {
6303 None
6304 }
6305 },
6306 ))
6307 }
6308 }
6309
6310 line.push_str(line_chunk);
6311 }
6312 }
6313 }
6314 }
6315
6316 layouts
6317 }
6318
6319 #[allow(clippy::too_many_arguments)]
6320 fn prepaint(
6321 &mut self,
6322 line_height: Pixels,
6323 scroll_pixel_position: gpui::Point<Pixels>,
6324 row: DisplayRow,
6325 content_origin: gpui::Point<Pixels>,
6326 line_elements: &mut SmallVec<[AnyElement; 1]>,
6327 window: &mut Window,
6328 cx: &mut App,
6329 ) {
6330 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6331 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6332 for fragment in &mut self.fragments {
6333 match fragment {
6334 LineFragment::Text(line) => {
6335 fragment_origin.x += line.width;
6336 }
6337 LineFragment::Element { element, size, .. } => {
6338 let mut element = element
6339 .take()
6340 .expect("you can't prepaint LineWithInvisibles twice");
6341
6342 // Center the element vertically within the line.
6343 let mut element_origin = fragment_origin;
6344 element_origin.y += (line_height - size.height) / 2.;
6345 element.prepaint_at(element_origin, window, cx);
6346 line_elements.push(element);
6347
6348 fragment_origin.x += size.width;
6349 }
6350 }
6351 }
6352 }
6353
6354 #[allow(clippy::too_many_arguments)]
6355 fn draw(
6356 &self,
6357 layout: &EditorLayout,
6358 row: DisplayRow,
6359 content_origin: gpui::Point<Pixels>,
6360 whitespace_setting: ShowWhitespaceSetting,
6361 selection_ranges: &[Range<DisplayPoint>],
6362 window: &mut Window,
6363 cx: &mut App,
6364 ) {
6365 let line_height = layout.position_map.line_height;
6366 let line_y = line_height
6367 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6368
6369 let mut fragment_origin =
6370 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6371
6372 for fragment in &self.fragments {
6373 match fragment {
6374 LineFragment::Text(line) => {
6375 line.paint(fragment_origin, line_height, window, cx)
6376 .log_err();
6377 fragment_origin.x += line.width;
6378 }
6379 LineFragment::Element { size, .. } => {
6380 fragment_origin.x += size.width;
6381 }
6382 }
6383 }
6384
6385 self.draw_invisibles(
6386 selection_ranges,
6387 layout,
6388 content_origin,
6389 line_y,
6390 row,
6391 line_height,
6392 whitespace_setting,
6393 window,
6394 cx,
6395 );
6396 }
6397
6398 #[allow(clippy::too_many_arguments)]
6399 fn draw_invisibles(
6400 &self,
6401 selection_ranges: &[Range<DisplayPoint>],
6402 layout: &EditorLayout,
6403 content_origin: gpui::Point<Pixels>,
6404 line_y: Pixels,
6405 row: DisplayRow,
6406 line_height: Pixels,
6407 whitespace_setting: ShowWhitespaceSetting,
6408 window: &mut Window,
6409 cx: &mut App,
6410 ) {
6411 let extract_whitespace_info = |invisible: &Invisible| {
6412 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6413 Invisible::Tab {
6414 line_start_offset,
6415 line_end_offset,
6416 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6417 Invisible::Whitespace { line_offset } => {
6418 (*line_offset, line_offset + 1, &layout.space_invisible)
6419 }
6420 };
6421
6422 let x_offset = self.x_for_index(token_offset);
6423 let invisible_offset =
6424 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6425 let origin = content_origin
6426 + gpui::point(
6427 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6428 line_y,
6429 );
6430
6431 (
6432 [token_offset, token_end_offset],
6433 Box::new(move |window: &mut Window, cx: &mut App| {
6434 invisible_symbol
6435 .paint(origin, line_height, window, cx)
6436 .log_err();
6437 }),
6438 )
6439 };
6440
6441 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6442 match whitespace_setting {
6443 ShowWhitespaceSetting::None => (),
6444 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6445 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6446 let invisible_point = DisplayPoint::new(row, start as u32);
6447 if !selection_ranges
6448 .iter()
6449 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6450 {
6451 return;
6452 }
6453
6454 paint(window, cx);
6455 }),
6456
6457 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6458 // - It is a tab
6459 // - It is adjacent to an edge (start or end)
6460 // - It is adjacent to a whitespace (left or right)
6461 ShowWhitespaceSetting::Boundary => {
6462 // 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
6463 // the above cases.
6464 // Note: We zip in the original `invisibles` to check for tab equality
6465 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6466 for (([start, end], paint), invisible) in
6467 invisible_iter.zip_eq(self.invisibles.iter())
6468 {
6469 let should_render = match (&last_seen, invisible) {
6470 (_, Invisible::Tab { .. }) => true,
6471 (Some((_, last_end, _)), _) => *last_end == start,
6472 _ => false,
6473 };
6474
6475 if should_render || start == 0 || end == self.len {
6476 paint(window, cx);
6477
6478 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6479 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6480 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6481 // Note that we need to make sure that the last one is actually adjacent
6482 if !should_render_last && last_end == start {
6483 paint_last(window, cx);
6484 }
6485 }
6486 }
6487
6488 // Manually render anything within a selection
6489 let invisible_point = DisplayPoint::new(row, start as u32);
6490 if selection_ranges.iter().any(|region| {
6491 region.start <= invisible_point && invisible_point < region.end
6492 }) {
6493 paint(window, cx);
6494 }
6495
6496 last_seen = Some((should_render, end, paint));
6497 }
6498 }
6499 }
6500 }
6501
6502 pub fn x_for_index(&self, index: usize) -> Pixels {
6503 let mut fragment_start_x = Pixels::ZERO;
6504 let mut fragment_start_index = 0;
6505
6506 for fragment in &self.fragments {
6507 match fragment {
6508 LineFragment::Text(shaped_line) => {
6509 let fragment_end_index = fragment_start_index + shaped_line.len;
6510 if index < fragment_end_index {
6511 return fragment_start_x
6512 + shaped_line.x_for_index(index - fragment_start_index);
6513 }
6514 fragment_start_x += shaped_line.width;
6515 fragment_start_index = fragment_end_index;
6516 }
6517 LineFragment::Element { len, size, .. } => {
6518 let fragment_end_index = fragment_start_index + len;
6519 if index < fragment_end_index {
6520 return fragment_start_x;
6521 }
6522 fragment_start_x += size.width;
6523 fragment_start_index = fragment_end_index;
6524 }
6525 }
6526 }
6527
6528 fragment_start_x
6529 }
6530
6531 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6532 let mut fragment_start_x = Pixels::ZERO;
6533 let mut fragment_start_index = 0;
6534
6535 for fragment in &self.fragments {
6536 match fragment {
6537 LineFragment::Text(shaped_line) => {
6538 let fragment_end_x = fragment_start_x + shaped_line.width;
6539 if x < fragment_end_x {
6540 return Some(
6541 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6542 );
6543 }
6544 fragment_start_x = fragment_end_x;
6545 fragment_start_index += shaped_line.len;
6546 }
6547 LineFragment::Element { len, size, .. } => {
6548 let fragment_end_x = fragment_start_x + size.width;
6549 if x < fragment_end_x {
6550 return Some(fragment_start_index);
6551 }
6552 fragment_start_index += len;
6553 fragment_start_x = fragment_end_x;
6554 }
6555 }
6556 }
6557
6558 None
6559 }
6560
6561 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6562 let mut fragment_start_index = 0;
6563
6564 for fragment in &self.fragments {
6565 match fragment {
6566 LineFragment::Text(shaped_line) => {
6567 let fragment_end_index = fragment_start_index + shaped_line.len;
6568 if index < fragment_end_index {
6569 return shaped_line.font_id_for_index(index - fragment_start_index);
6570 }
6571 fragment_start_index = fragment_end_index;
6572 }
6573 LineFragment::Element { len, .. } => {
6574 let fragment_end_index = fragment_start_index + len;
6575 if index < fragment_end_index {
6576 return None;
6577 }
6578 fragment_start_index = fragment_end_index;
6579 }
6580 }
6581 }
6582
6583 None
6584 }
6585}
6586
6587#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6588enum Invisible {
6589 /// A tab character
6590 ///
6591 /// A tab character is internally represented by spaces (configured by the user's tab width)
6592 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6593 /// adjacency checks.
6594 Tab {
6595 line_start_offset: usize,
6596 line_end_offset: usize,
6597 },
6598 Whitespace {
6599 line_offset: usize,
6600 },
6601}
6602
6603impl EditorElement {
6604 /// Returns the rem size to use when rendering the [`EditorElement`].
6605 ///
6606 /// This allows UI elements to scale based on the `buffer_font_size`.
6607 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6608 match self.editor.read(cx).mode {
6609 EditorMode::Full => {
6610 let buffer_font_size = self.style.text.font_size;
6611 match buffer_font_size {
6612 AbsoluteLength::Pixels(pixels) => {
6613 let rem_size_scale = {
6614 // Our default UI font size is 14px on a 16px base scale.
6615 // This means the default UI font size is 0.875rems.
6616 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6617
6618 // We then determine the delta between a single rem and the default font
6619 // size scale.
6620 let default_font_size_delta = 1. - default_font_size_scale;
6621
6622 // Finally, we add this delta to 1rem to get the scale factor that
6623 // should be used to scale up the UI.
6624 1. + default_font_size_delta
6625 };
6626
6627 Some(pixels * rem_size_scale)
6628 }
6629 AbsoluteLength::Rems(rems) => {
6630 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6631 }
6632 }
6633 }
6634 // We currently use single-line and auto-height editors in UI contexts,
6635 // so we don't want to scale everything with the buffer font size, as it
6636 // ends up looking off.
6637 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6638 }
6639 }
6640}
6641
6642impl Element for EditorElement {
6643 type RequestLayoutState = ();
6644 type PrepaintState = EditorLayout;
6645
6646 fn id(&self) -> Option<ElementId> {
6647 None
6648 }
6649
6650 fn request_layout(
6651 &mut self,
6652 _: Option<&GlobalElementId>,
6653 window: &mut Window,
6654 cx: &mut App,
6655 ) -> (gpui::LayoutId, ()) {
6656 let rem_size = self.rem_size(cx);
6657 window.with_rem_size(rem_size, |window| {
6658 self.editor.update(cx, |editor, cx| {
6659 editor.set_style(self.style.clone(), window, cx);
6660
6661 let layout_id = match editor.mode {
6662 EditorMode::SingleLine { auto_width } => {
6663 let rem_size = window.rem_size();
6664
6665 let height = self.style.text.line_height_in_pixels(rem_size);
6666 if auto_width {
6667 let editor_handle = cx.entity().clone();
6668 let style = self.style.clone();
6669 window.request_measured_layout(
6670 Style::default(),
6671 move |_, _, window, cx| {
6672 let editor_snapshot = editor_handle
6673 .update(cx, |editor, cx| editor.snapshot(window, cx));
6674 let line = Self::layout_lines(
6675 DisplayRow(0)..DisplayRow(1),
6676 &editor_snapshot,
6677 &style,
6678 px(f32::MAX),
6679 |_| false, // Single lines never soft wrap
6680 window,
6681 cx,
6682 )
6683 .pop()
6684 .unwrap();
6685
6686 let font_id =
6687 window.text_system().resolve_font(&style.text.font());
6688 let font_size =
6689 style.text.font_size.to_pixels(window.rem_size());
6690 let em_width =
6691 window.text_system().em_width(font_id, font_size).unwrap();
6692
6693 size(line.width + em_width, height)
6694 },
6695 )
6696 } else {
6697 let mut style = Style::default();
6698 style.size.height = height.into();
6699 style.size.width = relative(1.).into();
6700 window.request_layout(style, None, cx)
6701 }
6702 }
6703 EditorMode::AutoHeight { max_lines } => {
6704 let editor_handle = cx.entity().clone();
6705 let max_line_number_width =
6706 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6707 window.request_measured_layout(
6708 Style::default(),
6709 move |known_dimensions, available_space, window, cx| {
6710 editor_handle
6711 .update(cx, |editor, cx| {
6712 compute_auto_height_layout(
6713 editor,
6714 max_lines,
6715 max_line_number_width,
6716 known_dimensions,
6717 available_space.width,
6718 window,
6719 cx,
6720 )
6721 })
6722 .unwrap_or_default()
6723 },
6724 )
6725 }
6726 EditorMode::Full => {
6727 let mut style = Style::default();
6728 style.size.width = relative(1.).into();
6729 style.size.height = relative(1.).into();
6730 window.request_layout(style, None, cx)
6731 }
6732 };
6733
6734 (layout_id, ())
6735 })
6736 })
6737 }
6738
6739 fn prepaint(
6740 &mut self,
6741 _: Option<&GlobalElementId>,
6742 bounds: Bounds<Pixels>,
6743 _: &mut Self::RequestLayoutState,
6744 window: &mut Window,
6745 cx: &mut App,
6746 ) -> Self::PrepaintState {
6747 let text_style = TextStyleRefinement {
6748 font_size: Some(self.style.text.font_size),
6749 line_height: Some(self.style.text.line_height),
6750 ..Default::default()
6751 };
6752 let focus_handle = self.editor.focus_handle(cx);
6753 window.set_view_id(self.editor.entity_id());
6754 window.set_focus_handle(&focus_handle, cx);
6755
6756 let rem_size = self.rem_size(cx);
6757 window.with_rem_size(rem_size, |window| {
6758 window.with_text_style(Some(text_style), |window| {
6759 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6760 let mut snapshot = self
6761 .editor
6762 .update(cx, |editor, cx| editor.snapshot(window, cx));
6763 let style = self.style.clone();
6764
6765 let font_id = window.text_system().resolve_font(&style.text.font());
6766 let font_size = style.text.font_size.to_pixels(window.rem_size());
6767 let line_height = style.text.line_height_in_pixels(window.rem_size());
6768 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6769 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6770
6771 let letter_size = size(em_width, line_height);
6772
6773 let gutter_dimensions = snapshot
6774 .gutter_dimensions(
6775 font_id,
6776 font_size,
6777 self.max_line_number_width(&snapshot, window, cx),
6778 cx,
6779 )
6780 .unwrap_or_default();
6781 let text_width = bounds.size.width - gutter_dimensions.width;
6782
6783 let editor_width =
6784 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6785
6786 snapshot = self.editor.update(cx, |editor, cx| {
6787 editor.last_bounds = Some(bounds);
6788 editor.gutter_dimensions = gutter_dimensions;
6789 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6790
6791 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6792 snapshot
6793 } else {
6794 let wrap_width = match editor.soft_wrap_mode(cx) {
6795 SoftWrap::GitDiff => None,
6796 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6797 SoftWrap::EditorWidth => Some(editor_width),
6798 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6799 SoftWrap::Bounded(column) => {
6800 Some(editor_width.min(column as f32 * em_advance))
6801 }
6802 };
6803
6804 if editor.set_wrap_width(wrap_width, cx) {
6805 editor.snapshot(window, cx)
6806 } else {
6807 snapshot
6808 }
6809 }
6810 });
6811
6812 let wrap_guides = self
6813 .editor
6814 .read(cx)
6815 .wrap_guides(cx)
6816 .iter()
6817 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6818 .collect::<SmallVec<[_; 2]>>();
6819
6820 let hitbox = window.insert_hitbox(bounds, false);
6821 let gutter_hitbox =
6822 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6823 let text_hitbox = window.insert_hitbox(
6824 Bounds {
6825 origin: gutter_hitbox.top_right(),
6826 size: size(text_width, bounds.size.height),
6827 },
6828 false,
6829 );
6830 // Offset the content_bounds from the text_bounds by the gutter margin (which
6831 // is roughly half a character wide) to make hit testing work more like how we want.
6832 let content_origin =
6833 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6834
6835 let scrollbar_bounds =
6836 Bounds::from_corners(content_origin, bounds.bottom_right());
6837
6838 let height_in_lines = scrollbar_bounds.size.height / line_height;
6839
6840 // NOTE: The max row number in the current file, minus one
6841 let max_row = snapshot.max_point().row().as_f32();
6842
6843 // NOTE: The max scroll position for the top of the window
6844 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6845 (max_row - height_in_lines + 1.).max(0.)
6846 } else {
6847 let settings = EditorSettings::get_global(cx);
6848 match settings.scroll_beyond_last_line {
6849 ScrollBeyondLastLine::OnePage => max_row,
6850 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6851 ScrollBeyondLastLine::VerticalScrollMargin => {
6852 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6853 .max(0.)
6854 }
6855 }
6856 };
6857
6858 // TODO: Autoscrolling for both axes
6859 let mut autoscroll_request = None;
6860 let mut autoscroll_containing_element = false;
6861 let mut autoscroll_horizontally = false;
6862 self.editor.update(cx, |editor, cx| {
6863 autoscroll_request = editor.autoscroll_request();
6864 autoscroll_containing_element =
6865 autoscroll_request.is_some() || editor.has_pending_selection();
6866 // TODO: Is this horizontal or vertical?!
6867 autoscroll_horizontally = editor.autoscroll_vertically(
6868 bounds,
6869 line_height,
6870 max_scroll_top,
6871 window,
6872 cx,
6873 );
6874 snapshot = editor.snapshot(window, cx);
6875 });
6876
6877 let mut scroll_position = snapshot.scroll_position();
6878 // The scroll position is a fractional point, the whole number of which represents
6879 // the top of the window in terms of display rows.
6880 let start_row = DisplayRow(scroll_position.y as u32);
6881 let max_row = snapshot.max_point().row();
6882 let end_row = cmp::min(
6883 (scroll_position.y + height_in_lines).ceil() as u32,
6884 max_row.next_row().0,
6885 );
6886 let end_row = DisplayRow(end_row);
6887
6888 let row_infos = snapshot
6889 .row_infos(start_row)
6890 .take((start_row..end_row).len())
6891 .collect::<Vec<RowInfo>>();
6892 let is_row_soft_wrapped = |row: usize| {
6893 row_infos
6894 .get(row)
6895 .map_or(true, |info| info.buffer_row.is_none())
6896 };
6897
6898 let start_anchor = if start_row == Default::default() {
6899 Anchor::min()
6900 } else {
6901 snapshot.buffer_snapshot.anchor_before(
6902 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6903 )
6904 };
6905 let end_anchor = if end_row > max_row {
6906 Anchor::max()
6907 } else {
6908 snapshot.buffer_snapshot.anchor_before(
6909 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6910 )
6911 };
6912
6913 let mut highlighted_rows = self
6914 .editor
6915 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6916
6917 for (ix, row_info) in row_infos.iter().enumerate() {
6918 let background = match row_info.diff_status {
6919 Some(DiffHunkStatus::Added(_)) => {
6920 cx.theme().colors().version_control_added_background
6921 }
6922 Some(DiffHunkStatus::Removed(_)) => {
6923 cx.theme().colors().version_control_deleted_background
6924 }
6925 _ => continue,
6926 };
6927
6928 highlighted_rows
6929 .entry(start_row + DisplayRow(ix as u32))
6930 .or_insert(background);
6931 }
6932
6933 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6934 start_anchor..end_anchor,
6935 &snapshot.display_snapshot,
6936 cx.theme().colors(),
6937 );
6938 let highlighted_gutter_ranges =
6939 self.editor.read(cx).gutter_highlights_in_range(
6940 start_anchor..end_anchor,
6941 &snapshot.display_snapshot,
6942 cx,
6943 );
6944
6945 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6946 start_anchor..end_anchor,
6947 &snapshot.display_snapshot,
6948 cx,
6949 );
6950
6951 let (local_selections, selected_buffer_ids): (
6952 Vec<Selection<Point>>,
6953 Vec<BufferId>,
6954 ) = self.editor.update(cx, |editor, cx| {
6955 let all_selections = editor.selections.all::<Point>(cx);
6956 let selected_buffer_ids = if editor.is_singleton(cx) {
6957 Vec::new()
6958 } else {
6959 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6960
6961 for selection in all_selections {
6962 for buffer_id in snapshot
6963 .buffer_snapshot
6964 .buffer_ids_for_range(selection.range())
6965 {
6966 if selected_buffer_ids.last() != Some(&buffer_id) {
6967 selected_buffer_ids.push(buffer_id);
6968 }
6969 }
6970 }
6971
6972 selected_buffer_ids
6973 };
6974
6975 let mut selections = editor
6976 .selections
6977 .disjoint_in_range(start_anchor..end_anchor, cx);
6978 selections.extend(editor.selections.pending(cx));
6979
6980 (selections, selected_buffer_ids)
6981 });
6982
6983 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6984 start_anchor,
6985 end_anchor,
6986 &local_selections,
6987 &snapshot,
6988 start_row,
6989 end_row,
6990 window,
6991 cx,
6992 );
6993
6994 let line_numbers = self.layout_line_numbers(
6995 Some(&gutter_hitbox),
6996 gutter_dimensions,
6997 line_height,
6998 scroll_position,
6999 start_row..end_row,
7000 &row_infos,
7001 newest_selection_head,
7002 &snapshot,
7003 window,
7004 cx,
7005 );
7006
7007 let mut crease_toggles =
7008 window.with_element_namespace("crease_toggles", |window| {
7009 self.layout_crease_toggles(
7010 start_row..end_row,
7011 &row_infos,
7012 &active_rows,
7013 &snapshot,
7014 window,
7015 cx,
7016 )
7017 });
7018 let crease_trailers =
7019 window.with_element_namespace("crease_trailers", |window| {
7020 self.layout_crease_trailers(
7021 row_infos.iter().copied(),
7022 &snapshot,
7023 window,
7024 cx,
7025 )
7026 });
7027
7028 let display_hunks = self.layout_gutter_diff_hunks(
7029 line_height,
7030 &gutter_hitbox,
7031 start_row..end_row,
7032 &snapshot,
7033 window,
7034 cx,
7035 );
7036
7037 let mut line_layouts = Self::layout_lines(
7038 start_row..end_row,
7039 &snapshot,
7040 &self.style,
7041 editor_width,
7042 is_row_soft_wrapped,
7043 window,
7044 cx,
7045 );
7046
7047 let longest_line_blame_width = self
7048 .editor
7049 .update(cx, |editor, cx| {
7050 if !editor.show_git_blame_inline {
7051 return None;
7052 }
7053 let blame = editor.blame.as_ref()?;
7054 let blame_entry = blame
7055 .update(cx, |blame, cx| {
7056 let row_infos =
7057 snapshot.row_infos(snapshot.longest_row()).next()?;
7058 blame.blame_for_rows(&[row_infos], cx).next()
7059 })
7060 .flatten()?;
7061 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7062 let mut element = render_inline_blame_entry(
7063 blame,
7064 blame_entry,
7065 &style,
7066 workspace,
7067 cx,
7068 );
7069 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7070 Some(
7071 element
7072 .layout_as_root(AvailableSpace::min_size(), window, cx)
7073 .width
7074 + inline_blame_padding,
7075 )
7076 })
7077 .unwrap_or(Pixels::ZERO);
7078
7079 let longest_line_width = layout_line(
7080 snapshot.longest_row(),
7081 &snapshot,
7082 &style,
7083 editor_width,
7084 is_row_soft_wrapped,
7085 window,
7086 cx,
7087 )
7088 .width;
7089
7090 let scrollbar_range_data = ScrollbarRangeData::new(
7091 scrollbar_bounds,
7092 letter_size,
7093 &snapshot,
7094 longest_line_width,
7095 longest_line_blame_width,
7096 &style,
7097 editor_width,
7098 cx,
7099 );
7100
7101 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7102 let mut scroll_width = scroll_range_bounds.size.width;
7103
7104 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7105 snapshot.sticky_header_excerpt(start_row)
7106 } else {
7107 None
7108 };
7109 let sticky_header_excerpt_id =
7110 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7111
7112 let blocks = window.with_element_namespace("blocks", |window| {
7113 self.render_blocks(
7114 start_row..end_row,
7115 &snapshot,
7116 &hitbox,
7117 &text_hitbox,
7118 editor_width,
7119 &mut scroll_width,
7120 &gutter_dimensions,
7121 em_width,
7122 gutter_dimensions.full_width(),
7123 line_height,
7124 &line_layouts,
7125 &local_selections,
7126 &selected_buffer_ids,
7127 is_row_soft_wrapped,
7128 sticky_header_excerpt_id,
7129 window,
7130 cx,
7131 )
7132 });
7133 let mut blocks = match blocks {
7134 Ok(blocks) => blocks,
7135 Err(resized_blocks) => {
7136 self.editor.update(cx, |editor, cx| {
7137 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7138 });
7139 return self.prepaint(None, bounds, &mut (), window, cx);
7140 }
7141 };
7142
7143 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7144 window.with_element_namespace("blocks", |window| {
7145 self.layout_sticky_buffer_header(
7146 sticky_header_excerpt,
7147 scroll_position.y,
7148 line_height,
7149 &snapshot,
7150 &hitbox,
7151 &selected_buffer_ids,
7152 window,
7153 cx,
7154 )
7155 })
7156 });
7157
7158 let start_buffer_row =
7159 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7160 let end_buffer_row =
7161 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7162
7163 let scroll_max = point(
7164 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7165 max_row.as_f32(),
7166 );
7167
7168 self.editor.update(cx, |editor, cx| {
7169 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7170
7171 let autoscrolled = if autoscroll_horizontally {
7172 editor.autoscroll_horizontally(
7173 start_row,
7174 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7175 scroll_width,
7176 em_width,
7177 &line_layouts,
7178 cx,
7179 )
7180 } else {
7181 false
7182 };
7183
7184 if clamped || autoscrolled {
7185 snapshot = editor.snapshot(window, cx);
7186 scroll_position = snapshot.scroll_position();
7187 }
7188 });
7189
7190 let scroll_pixel_position = point(
7191 scroll_position.x * em_width,
7192 scroll_position.y * line_height,
7193 );
7194
7195 let indent_guides = self.layout_indent_guides(
7196 content_origin,
7197 text_hitbox.origin,
7198 start_buffer_row..end_buffer_row,
7199 scroll_pixel_position,
7200 line_height,
7201 &snapshot,
7202 window,
7203 cx,
7204 );
7205
7206 let crease_trailers =
7207 window.with_element_namespace("crease_trailers", |window| {
7208 self.prepaint_crease_trailers(
7209 crease_trailers,
7210 &line_layouts,
7211 line_height,
7212 content_origin,
7213 scroll_pixel_position,
7214 em_width,
7215 window,
7216 cx,
7217 )
7218 });
7219
7220 let mut inline_blame = None;
7221 if let Some(newest_selection_head) = newest_selection_head {
7222 let display_row = newest_selection_head.row();
7223 if (start_row..end_row).contains(&display_row) {
7224 let line_ix = display_row.minus(start_row) as usize;
7225 let row_info = &row_infos[line_ix];
7226 let line_layout = &line_layouts[line_ix];
7227 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7228 inline_blame = self.layout_inline_blame(
7229 display_row,
7230 row_info,
7231 line_layout,
7232 crease_trailer_layout,
7233 em_width,
7234 content_origin,
7235 scroll_pixel_position,
7236 line_height,
7237 window,
7238 cx,
7239 );
7240 }
7241 }
7242
7243 let blamed_display_rows = self.layout_blame_entries(
7244 &row_infos,
7245 em_width,
7246 scroll_position,
7247 line_height,
7248 &gutter_hitbox,
7249 gutter_dimensions.git_blame_entries_width,
7250 window,
7251 cx,
7252 );
7253
7254 let scroll_max = point(
7255 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7256 max_scroll_top,
7257 );
7258
7259 self.editor.update(cx, |editor, cx| {
7260 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7261
7262 let autoscrolled = if autoscroll_horizontally {
7263 editor.autoscroll_horizontally(
7264 start_row,
7265 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7266 scroll_width,
7267 em_width,
7268 &line_layouts,
7269 cx,
7270 )
7271 } else {
7272 false
7273 };
7274
7275 if clamped || autoscrolled {
7276 snapshot = editor.snapshot(window, cx);
7277 scroll_position = snapshot.scroll_position();
7278 }
7279 });
7280
7281 let line_elements = self.prepaint_lines(
7282 start_row,
7283 &mut line_layouts,
7284 line_height,
7285 scroll_pixel_position,
7286 content_origin,
7287 window,
7288 cx,
7289 );
7290
7291 let mut block_start_rows = HashSet::default();
7292
7293 window.with_element_namespace("blocks", |window| {
7294 self.layout_blocks(
7295 &mut blocks,
7296 &mut block_start_rows,
7297 &hitbox,
7298 line_height,
7299 scroll_pixel_position,
7300 window,
7301 cx,
7302 );
7303 });
7304
7305 let cursors = self.collect_cursors(&snapshot, cx);
7306 let visible_row_range = start_row..end_row;
7307 let non_visible_cursors = cursors
7308 .iter()
7309 .any(|c| !visible_row_range.contains(&c.0.row()));
7310
7311 let visible_cursors = self.layout_visible_cursors(
7312 &snapshot,
7313 &selections,
7314 &block_start_rows,
7315 start_row..end_row,
7316 &line_layouts,
7317 &text_hitbox,
7318 content_origin,
7319 scroll_position,
7320 scroll_pixel_position,
7321 line_height,
7322 em_width,
7323 em_advance,
7324 autoscroll_containing_element,
7325 window,
7326 cx,
7327 );
7328
7329 let scrollbars_layout = self.layout_scrollbars(
7330 &snapshot,
7331 scrollbar_range_data,
7332 scroll_position,
7333 non_visible_cursors,
7334 window,
7335 cx,
7336 );
7337
7338 let gutter_settings = EditorSettings::get_global(cx).gutter;
7339
7340 let rows_with_hunk_bounds = display_hunks
7341 .iter()
7342 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7343 .fold(
7344 HashMap::default(),
7345 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7346 match hunk {
7347 DisplayDiffHunk::Folded { display_row } => {
7348 rows_with_hunk_bounds.insert(*display_row, bounds);
7349 }
7350 DisplayDiffHunk::Unfolded {
7351 display_row_range, ..
7352 } => {
7353 for display_row in display_row_range.iter_rows() {
7354 rows_with_hunk_bounds.insert(display_row, bounds);
7355 }
7356 }
7357 }
7358 rows_with_hunk_bounds
7359 },
7360 );
7361 let mut code_actions_indicator = None;
7362 if let Some(newest_selection_head) = newest_selection_head {
7363 let newest_selection_point =
7364 newest_selection_head.to_point(&snapshot.display_snapshot);
7365
7366 if (start_row..end_row).contains(&newest_selection_head.row()) {
7367 self.layout_cursor_popovers(
7368 line_height,
7369 &text_hitbox,
7370 content_origin,
7371 start_row,
7372 scroll_pixel_position,
7373 &line_layouts,
7374 newest_selection_head,
7375 newest_selection_point,
7376 &style,
7377 window,
7378 cx,
7379 );
7380
7381 let show_code_actions = snapshot
7382 .show_code_actions
7383 .unwrap_or(gutter_settings.code_actions);
7384 if show_code_actions {
7385 let newest_selection_point =
7386 newest_selection_head.to_point(&snapshot.display_snapshot);
7387 if !snapshot
7388 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7389 {
7390 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7391 MultiBufferRow(newest_selection_point.row),
7392 );
7393 if let Some((buffer, range)) = buffer {
7394 let buffer_id = buffer.remote_id();
7395 let row = range.start.row;
7396 let has_test_indicator = self
7397 .editor
7398 .read(cx)
7399 .tasks
7400 .contains_key(&(buffer_id, row));
7401
7402 if !has_test_indicator {
7403 code_actions_indicator = self
7404 .layout_code_actions_indicator(
7405 line_height,
7406 newest_selection_head,
7407 scroll_pixel_position,
7408 &gutter_dimensions,
7409 &gutter_hitbox,
7410 &rows_with_hunk_bounds,
7411 window,
7412 cx,
7413 );
7414 }
7415 }
7416 }
7417 }
7418 }
7419 }
7420
7421 self.layout_gutter_menu(
7422 line_height,
7423 &text_hitbox,
7424 content_origin,
7425 scroll_pixel_position,
7426 gutter_dimensions.width - gutter_dimensions.left_padding,
7427 window,
7428 cx,
7429 );
7430
7431 let test_indicators = if gutter_settings.runnables {
7432 self.layout_run_indicators(
7433 line_height,
7434 start_row..end_row,
7435 scroll_pixel_position,
7436 &gutter_dimensions,
7437 &gutter_hitbox,
7438 &rows_with_hunk_bounds,
7439 &snapshot,
7440 window,
7441 cx,
7442 )
7443 } else {
7444 Vec::new()
7445 };
7446
7447 self.layout_signature_help(
7448 &hitbox,
7449 content_origin,
7450 scroll_pixel_position,
7451 newest_selection_head,
7452 start_row,
7453 &line_layouts,
7454 line_height,
7455 em_width,
7456 window,
7457 cx,
7458 );
7459
7460 if !cx.has_active_drag() {
7461 self.layout_hover_popovers(
7462 &snapshot,
7463 &hitbox,
7464 &text_hitbox,
7465 start_row..end_row,
7466 content_origin,
7467 scroll_pixel_position,
7468 &line_layouts,
7469 line_height,
7470 em_width,
7471 window,
7472 cx,
7473 );
7474 }
7475
7476 let inline_completion_popover = self.layout_edit_prediction_popover(
7477 &text_hitbox.bounds,
7478 content_origin,
7479 &snapshot,
7480 start_row..end_row,
7481 scroll_position.y,
7482 scroll_position.y + height_in_lines,
7483 &line_layouts,
7484 line_height,
7485 scroll_pixel_position,
7486 newest_selection_head,
7487 editor_width,
7488 &style,
7489 window,
7490 cx,
7491 );
7492
7493 let mouse_context_menu = self.layout_mouse_context_menu(
7494 &snapshot,
7495 start_row..end_row,
7496 content_origin,
7497 window,
7498 cx,
7499 );
7500
7501 window.with_element_namespace("crease_toggles", |window| {
7502 self.prepaint_crease_toggles(
7503 &mut crease_toggles,
7504 line_height,
7505 &gutter_dimensions,
7506 gutter_settings,
7507 scroll_pixel_position,
7508 &gutter_hitbox,
7509 window,
7510 cx,
7511 )
7512 });
7513
7514 let invisible_symbol_font_size = font_size / 2.;
7515 let tab_invisible = window
7516 .text_system()
7517 .shape_line(
7518 "→".into(),
7519 invisible_symbol_font_size,
7520 &[TextRun {
7521 len: "→".len(),
7522 font: self.style.text.font(),
7523 color: cx.theme().colors().editor_invisible,
7524 background_color: None,
7525 underline: None,
7526 strikethrough: None,
7527 }],
7528 )
7529 .unwrap();
7530 let space_invisible = window
7531 .text_system()
7532 .shape_line(
7533 "•".into(),
7534 invisible_symbol_font_size,
7535 &[TextRun {
7536 len: "•".len(),
7537 font: self.style.text.font(),
7538 color: cx.theme().colors().editor_invisible,
7539 background_color: None,
7540 underline: None,
7541 strikethrough: None,
7542 }],
7543 )
7544 .unwrap();
7545
7546 let mode = snapshot.mode;
7547
7548 let position_map = Rc::new(PositionMap {
7549 size: bounds.size,
7550 visible_row_range,
7551 scroll_pixel_position,
7552 scroll_max,
7553 line_layouts,
7554 line_height,
7555 em_width,
7556 em_advance,
7557 snapshot,
7558 gutter_hitbox: gutter_hitbox.clone(),
7559 text_hitbox: text_hitbox.clone(),
7560 });
7561
7562 self.editor.update(cx, |editor, _| {
7563 editor.last_position_map = Some(position_map.clone())
7564 });
7565
7566 let hunk_controls = self.layout_diff_hunk_controls(
7567 start_row..end_row,
7568 &row_infos,
7569 &text_hitbox,
7570 &position_map,
7571 newest_selection_head,
7572 line_height,
7573 scroll_pixel_position,
7574 &display_hunks,
7575 self.editor.clone(),
7576 window,
7577 cx,
7578 );
7579
7580 EditorLayout {
7581 mode,
7582 position_map,
7583 visible_display_row_range: start_row..end_row,
7584 wrap_guides,
7585 indent_guides,
7586 hitbox,
7587 gutter_hitbox,
7588 display_hunks,
7589 content_origin,
7590 scrollbars_layout,
7591 active_rows,
7592 highlighted_rows,
7593 highlighted_ranges,
7594 highlighted_gutter_ranges,
7595 redacted_ranges,
7596 line_elements,
7597 line_numbers,
7598 blamed_display_rows,
7599 inline_blame,
7600 blocks,
7601 cursors,
7602 visible_cursors,
7603 selections,
7604 inline_completion_popover,
7605 diff_hunk_controls: hunk_controls,
7606 mouse_context_menu,
7607 test_indicators,
7608 code_actions_indicator,
7609 crease_toggles,
7610 crease_trailers,
7611 tab_invisible,
7612 space_invisible,
7613 sticky_buffer_header,
7614 }
7615 })
7616 })
7617 })
7618 }
7619
7620 fn paint(
7621 &mut self,
7622 _: Option<&GlobalElementId>,
7623 bounds: Bounds<gpui::Pixels>,
7624 _: &mut Self::RequestLayoutState,
7625 layout: &mut Self::PrepaintState,
7626 window: &mut Window,
7627 cx: &mut App,
7628 ) {
7629 let focus_handle = self.editor.focus_handle(cx);
7630 let key_context = self
7631 .editor
7632 .update(cx, |editor, cx| editor.key_context(window, cx));
7633
7634 window.set_key_context(key_context);
7635 window.handle_input(
7636 &focus_handle,
7637 ElementInputHandler::new(bounds, self.editor.clone()),
7638 cx,
7639 );
7640 self.register_actions(window, cx);
7641 self.register_key_listeners(window, cx, layout);
7642
7643 let text_style = TextStyleRefinement {
7644 font_size: Some(self.style.text.font_size),
7645 line_height: Some(self.style.text.line_height),
7646 ..Default::default()
7647 };
7648 let rem_size = self.rem_size(cx);
7649 window.with_rem_size(rem_size, |window| {
7650 window.with_text_style(Some(text_style), |window| {
7651 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7652 self.paint_mouse_listeners(layout, window, cx);
7653 self.paint_background(layout, window, cx);
7654 self.paint_indent_guides(layout, window, cx);
7655
7656 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7657 self.paint_blamed_display_rows(layout, window, cx);
7658 self.paint_line_numbers(layout, window, cx);
7659 }
7660
7661 self.paint_text(layout, window, cx);
7662
7663 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7664 self.paint_gutter_highlights(layout, window, cx);
7665 self.paint_gutter_indicators(layout, window, cx);
7666 }
7667
7668 if !layout.blocks.is_empty() {
7669 window.with_element_namespace("blocks", |window| {
7670 self.paint_blocks(layout, window, cx);
7671 });
7672 }
7673
7674 window.with_element_namespace("blocks", |window| {
7675 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7676 sticky_header.paint(window, cx)
7677 }
7678 });
7679
7680 self.paint_scrollbars(layout, window, cx);
7681 self.paint_inline_completion_popover(layout, window, cx);
7682 self.paint_mouse_context_menu(layout, window, cx);
7683 });
7684 })
7685 })
7686 }
7687}
7688
7689pub(super) fn gutter_bounds(
7690 editor_bounds: Bounds<Pixels>,
7691 gutter_dimensions: GutterDimensions,
7692) -> Bounds<Pixels> {
7693 Bounds {
7694 origin: editor_bounds.origin,
7695 size: size(gutter_dimensions.width, editor_bounds.size.height),
7696 }
7697}
7698
7699struct ScrollbarRangeData {
7700 scrollbar_bounds: Bounds<Pixels>,
7701 scroll_range: Bounds<Pixels>,
7702 letter_size: Size<Pixels>,
7703}
7704
7705impl ScrollbarRangeData {
7706 #[allow(clippy::too_many_arguments)]
7707 pub fn new(
7708 scrollbar_bounds: Bounds<Pixels>,
7709 letter_size: Size<Pixels>,
7710 snapshot: &EditorSnapshot,
7711 longest_line_width: Pixels,
7712 longest_line_blame_width: Pixels,
7713 style: &EditorStyle,
7714 editor_width: Pixels,
7715 cx: &mut App,
7716 ) -> ScrollbarRangeData {
7717 // TODO: Simplify this function down, it requires a lot of parameters
7718 let max_row = snapshot.max_point().row();
7719 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7720
7721 let settings = EditorSettings::get_global(cx);
7722 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7723 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7724 ScrollBeyondLastLine::Off => px(1.),
7725 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7726 };
7727
7728 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7729 letter_size.width + style.scrollbar_width
7730 } else {
7731 px(0.0)
7732 };
7733
7734 let overscroll = size(
7735 right_margin + longest_line_blame_width,
7736 letter_size.height * scroll_beyond_last_line,
7737 );
7738
7739 let scroll_range = Bounds {
7740 origin: scrollbar_bounds.origin,
7741 size: text_bounds_size + overscroll,
7742 };
7743
7744 ScrollbarRangeData {
7745 scrollbar_bounds,
7746 scroll_range,
7747 letter_size,
7748 }
7749 }
7750}
7751
7752impl IntoElement for EditorElement {
7753 type Element = Self;
7754
7755 fn into_element(self) -> Self::Element {
7756 self
7757 }
7758}
7759
7760pub struct EditorLayout {
7761 position_map: Rc<PositionMap>,
7762 hitbox: Hitbox,
7763 gutter_hitbox: Hitbox,
7764 content_origin: gpui::Point<Pixels>,
7765 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7766 mode: EditorMode,
7767 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7768 indent_guides: Option<Vec<IndentGuideLayout>>,
7769 visible_display_row_range: Range<DisplayRow>,
7770 active_rows: BTreeMap<DisplayRow, bool>,
7771 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7772 line_elements: SmallVec<[AnyElement; 1]>,
7773 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7774 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7775 blamed_display_rows: Option<Vec<AnyElement>>,
7776 inline_blame: Option<AnyElement>,
7777 blocks: Vec<BlockLayout>,
7778 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7779 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7780 redacted_ranges: Vec<Range<DisplayPoint>>,
7781 cursors: Vec<(DisplayPoint, Hsla)>,
7782 visible_cursors: Vec<CursorLayout>,
7783 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7784 code_actions_indicator: Option<AnyElement>,
7785 test_indicators: Vec<AnyElement>,
7786 crease_toggles: Vec<Option<AnyElement>>,
7787 diff_hunk_controls: Vec<AnyElement>,
7788 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7789 inline_completion_popover: Option<AnyElement>,
7790 mouse_context_menu: Option<AnyElement>,
7791 tab_invisible: ShapedLine,
7792 space_invisible: ShapedLine,
7793 sticky_buffer_header: Option<AnyElement>,
7794}
7795
7796impl EditorLayout {
7797 fn line_end_overshoot(&self) -> Pixels {
7798 0.15 * self.position_map.line_height
7799 }
7800}
7801
7802struct LineNumberLayout {
7803 shaped_line: ShapedLine,
7804 hitbox: Option<Hitbox>,
7805 display_row: DisplayRow,
7806}
7807
7808struct ColoredRange<T> {
7809 start: T,
7810 end: T,
7811 color: Hsla,
7812}
7813
7814#[derive(Clone)]
7815struct ScrollbarLayout {
7816 hitbox: Hitbox,
7817 visible_range: Range<f32>,
7818 visible: bool,
7819 text_unit_size: Pixels,
7820 thumb_size: Pixels,
7821 axis: Axis,
7822}
7823
7824impl ScrollbarLayout {
7825 const BORDER_WIDTH: Pixels = px(1.0);
7826 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7827 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7828 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7829
7830 fn thumb_bounds(&self) -> Bounds<Pixels> {
7831 match self.axis {
7832 Axis::Vertical => {
7833 let thumb_top = self.y_for_row(self.visible_range.start);
7834 let thumb_bottom = thumb_top + self.thumb_size;
7835 Bounds::from_corners(
7836 point(self.hitbox.left(), thumb_top),
7837 point(self.hitbox.right(), thumb_bottom),
7838 )
7839 }
7840 Axis::Horizontal => {
7841 let thumb_left =
7842 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7843 let thumb_right = thumb_left + self.thumb_size;
7844 Bounds::from_corners(
7845 point(thumb_left, self.hitbox.top()),
7846 point(thumb_right, self.hitbox.bottom()),
7847 )
7848 }
7849 }
7850 }
7851
7852 fn y_for_row(&self, row: f32) -> Pixels {
7853 self.hitbox.top() + row * self.text_unit_size
7854 }
7855
7856 fn marker_quads_for_ranges(
7857 &self,
7858 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7859 column: Option<usize>,
7860 ) -> Vec<PaintQuad> {
7861 struct MinMax {
7862 min: Pixels,
7863 max: Pixels,
7864 }
7865 let (x_range, height_limit) = if let Some(column) = column {
7866 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7867 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7868 let end = start + column_width;
7869 (
7870 Range { start, end },
7871 MinMax {
7872 min: Self::MIN_MARKER_HEIGHT,
7873 max: px(f32::MAX),
7874 },
7875 )
7876 } else {
7877 (
7878 Range {
7879 start: Self::BORDER_WIDTH,
7880 end: self.hitbox.size.width,
7881 },
7882 MinMax {
7883 min: Self::LINE_MARKER_HEIGHT,
7884 max: Self::LINE_MARKER_HEIGHT,
7885 },
7886 )
7887 };
7888
7889 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7890 let mut pixel_ranges = row_ranges
7891 .into_iter()
7892 .map(|range| {
7893 let start_y = row_to_y(range.start);
7894 let end_y = row_to_y(range.end)
7895 + self
7896 .text_unit_size
7897 .max(height_limit.min)
7898 .min(height_limit.max);
7899 ColoredRange {
7900 start: start_y,
7901 end: end_y,
7902 color: range.color,
7903 }
7904 })
7905 .peekable();
7906
7907 let mut quads = Vec::new();
7908 while let Some(mut pixel_range) = pixel_ranges.next() {
7909 while let Some(next_pixel_range) = pixel_ranges.peek() {
7910 if pixel_range.end >= next_pixel_range.start - px(1.0)
7911 && pixel_range.color == next_pixel_range.color
7912 {
7913 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7914 pixel_ranges.next();
7915 } else {
7916 break;
7917 }
7918 }
7919
7920 let bounds = Bounds::from_corners(
7921 point(x_range.start, pixel_range.start),
7922 point(x_range.end, pixel_range.end),
7923 );
7924 quads.push(quad(
7925 bounds,
7926 Corners::default(),
7927 pixel_range.color,
7928 Edges::default(),
7929 Hsla::transparent_black(),
7930 ));
7931 }
7932
7933 quads
7934 }
7935}
7936
7937struct CreaseTrailerLayout {
7938 element: AnyElement,
7939 bounds: Bounds<Pixels>,
7940}
7941
7942pub(crate) struct PositionMap {
7943 pub size: Size<Pixels>,
7944 pub line_height: Pixels,
7945 pub scroll_pixel_position: gpui::Point<Pixels>,
7946 pub scroll_max: gpui::Point<f32>,
7947 pub em_width: Pixels,
7948 pub em_advance: Pixels,
7949 pub visible_row_range: Range<DisplayRow>,
7950 pub line_layouts: Vec<LineWithInvisibles>,
7951 pub snapshot: EditorSnapshot,
7952 pub text_hitbox: Hitbox,
7953 pub gutter_hitbox: Hitbox,
7954}
7955
7956#[derive(Debug, Copy, Clone)]
7957pub struct PointForPosition {
7958 pub previous_valid: DisplayPoint,
7959 pub next_valid: DisplayPoint,
7960 pub exact_unclipped: DisplayPoint,
7961 pub column_overshoot_after_line_end: u32,
7962}
7963
7964impl PointForPosition {
7965 pub fn as_valid(&self) -> Option<DisplayPoint> {
7966 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7967 Some(self.previous_valid)
7968 } else {
7969 None
7970 }
7971 }
7972}
7973
7974impl PositionMap {
7975 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7976 let text_bounds = self.text_hitbox.bounds;
7977 let scroll_position = self.snapshot.scroll_position();
7978 let position = position - text_bounds.origin;
7979 let y = position.y.max(px(0.)).min(self.size.height);
7980 let x = position.x + (scroll_position.x * self.em_width);
7981 let row = ((y / self.line_height) + scroll_position.y) as u32;
7982
7983 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7984 .line_layouts
7985 .get(row as usize - scroll_position.y as usize)
7986 {
7987 if let Some(ix) = line.index_for_x(x) {
7988 (ix as u32, px(0.))
7989 } else {
7990 (line.len as u32, px(0.).max(x - line.width))
7991 }
7992 } else {
7993 (0, x)
7994 };
7995
7996 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7997 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7998 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7999
8000 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8001 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8002 PointForPosition {
8003 previous_valid,
8004 next_valid,
8005 exact_unclipped,
8006 column_overshoot_after_line_end,
8007 }
8008 }
8009}
8010
8011struct BlockLayout {
8012 id: BlockId,
8013 row: Option<DisplayRow>,
8014 element: AnyElement,
8015 available_space: Size<AvailableSpace>,
8016 style: BlockStyle,
8017}
8018
8019fn layout_line(
8020 row: DisplayRow,
8021 snapshot: &EditorSnapshot,
8022 style: &EditorStyle,
8023 text_width: Pixels,
8024 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8025 window: &mut Window,
8026 cx: &mut App,
8027) -> LineWithInvisibles {
8028 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8029 LineWithInvisibles::from_chunks(
8030 chunks,
8031 &style,
8032 MAX_LINE_LEN,
8033 1,
8034 snapshot.mode,
8035 text_width,
8036 is_row_soft_wrapped,
8037 window,
8038 cx,
8039 )
8040 .pop()
8041 .unwrap()
8042}
8043
8044#[derive(Debug)]
8045pub struct IndentGuideLayout {
8046 origin: gpui::Point<Pixels>,
8047 length: Pixels,
8048 single_indent_width: Pixels,
8049 depth: u32,
8050 active: bool,
8051 settings: IndentGuideSettings,
8052}
8053
8054pub struct CursorLayout {
8055 origin: gpui::Point<Pixels>,
8056 block_width: Pixels,
8057 line_height: Pixels,
8058 color: Hsla,
8059 shape: CursorShape,
8060 block_text: Option<ShapedLine>,
8061 cursor_name: Option<AnyElement>,
8062}
8063
8064#[derive(Debug)]
8065pub struct CursorName {
8066 string: SharedString,
8067 color: Hsla,
8068 is_top_row: bool,
8069}
8070
8071impl CursorLayout {
8072 pub fn new(
8073 origin: gpui::Point<Pixels>,
8074 block_width: Pixels,
8075 line_height: Pixels,
8076 color: Hsla,
8077 shape: CursorShape,
8078 block_text: Option<ShapedLine>,
8079 ) -> CursorLayout {
8080 CursorLayout {
8081 origin,
8082 block_width,
8083 line_height,
8084 color,
8085 shape,
8086 block_text,
8087 cursor_name: None,
8088 }
8089 }
8090
8091 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8092 Bounds {
8093 origin: self.origin + origin,
8094 size: size(self.block_width, self.line_height),
8095 }
8096 }
8097
8098 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8099 match self.shape {
8100 CursorShape::Bar => Bounds {
8101 origin: self.origin + origin,
8102 size: size(px(2.0), self.line_height),
8103 },
8104 CursorShape::Block | CursorShape::Hollow => Bounds {
8105 origin: self.origin + origin,
8106 size: size(self.block_width, self.line_height),
8107 },
8108 CursorShape::Underline => Bounds {
8109 origin: self.origin
8110 + origin
8111 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8112 size: size(self.block_width, px(2.0)),
8113 },
8114 }
8115 }
8116
8117 pub fn layout(
8118 &mut self,
8119 origin: gpui::Point<Pixels>,
8120 cursor_name: Option<CursorName>,
8121 window: &mut Window,
8122 cx: &mut App,
8123 ) {
8124 if let Some(cursor_name) = cursor_name {
8125 let bounds = self.bounds(origin);
8126 let text_size = self.line_height / 1.5;
8127
8128 let name_origin = if cursor_name.is_top_row {
8129 point(bounds.right() - px(1.), bounds.top())
8130 } else {
8131 match self.shape {
8132 CursorShape::Bar => point(
8133 bounds.right() - px(2.),
8134 bounds.top() - text_size / 2. - px(1.),
8135 ),
8136 _ => point(
8137 bounds.right() - px(1.),
8138 bounds.top() - text_size / 2. - px(1.),
8139 ),
8140 }
8141 };
8142 let mut name_element = div()
8143 .bg(self.color)
8144 .text_size(text_size)
8145 .px_0p5()
8146 .line_height(text_size + px(2.))
8147 .text_color(cursor_name.color)
8148 .child(cursor_name.string.clone())
8149 .into_any_element();
8150
8151 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8152
8153 self.cursor_name = Some(name_element);
8154 }
8155 }
8156
8157 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8158 let bounds = self.bounds(origin);
8159
8160 //Draw background or border quad
8161 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8162 outline(bounds, self.color)
8163 } else {
8164 fill(bounds, self.color)
8165 };
8166
8167 if let Some(name) = &mut self.cursor_name {
8168 name.paint(window, cx);
8169 }
8170
8171 window.paint_quad(cursor);
8172
8173 if let Some(block_text) = &self.block_text {
8174 block_text
8175 .paint(self.origin + origin, self.line_height, window, cx)
8176 .log_err();
8177 }
8178 }
8179
8180 pub fn shape(&self) -> CursorShape {
8181 self.shape
8182 }
8183}
8184
8185#[derive(Debug)]
8186pub struct HighlightedRange {
8187 pub start_y: Pixels,
8188 pub line_height: Pixels,
8189 pub lines: Vec<HighlightedRangeLine>,
8190 pub color: Hsla,
8191 pub corner_radius: Pixels,
8192}
8193
8194#[derive(Debug)]
8195pub struct HighlightedRangeLine {
8196 pub start_x: Pixels,
8197 pub end_x: Pixels,
8198}
8199
8200impl HighlightedRange {
8201 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8202 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8203 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8204 self.paint_lines(
8205 self.start_y + self.line_height,
8206 &self.lines[1..],
8207 bounds,
8208 window,
8209 );
8210 } else {
8211 self.paint_lines(self.start_y, &self.lines, bounds, window);
8212 }
8213 }
8214
8215 fn paint_lines(
8216 &self,
8217 start_y: Pixels,
8218 lines: &[HighlightedRangeLine],
8219 _bounds: Bounds<Pixels>,
8220 window: &mut Window,
8221 ) {
8222 if lines.is_empty() {
8223 return;
8224 }
8225
8226 let first_line = lines.first().unwrap();
8227 let last_line = lines.last().unwrap();
8228
8229 let first_top_left = point(first_line.start_x, start_y);
8230 let first_top_right = point(first_line.end_x, start_y);
8231
8232 let curve_height = point(Pixels::ZERO, self.corner_radius);
8233 let curve_width = |start_x: Pixels, end_x: Pixels| {
8234 let max = (end_x - start_x) / 2.;
8235 let width = if max < self.corner_radius {
8236 max
8237 } else {
8238 self.corner_radius
8239 };
8240
8241 point(width, Pixels::ZERO)
8242 };
8243
8244 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8245 let mut builder = gpui::PathBuilder::fill();
8246 builder.move_to(first_top_right - top_curve_width);
8247 builder.curve_to(first_top_right + curve_height, first_top_right);
8248
8249 let mut iter = lines.iter().enumerate().peekable();
8250 while let Some((ix, line)) = iter.next() {
8251 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8252
8253 if let Some((_, next_line)) = iter.peek() {
8254 let next_top_right = point(next_line.end_x, bottom_right.y);
8255
8256 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8257 Ordering::Equal => {
8258 builder.line_to(bottom_right);
8259 }
8260 Ordering::Less => {
8261 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8262 builder.line_to(bottom_right - curve_height);
8263 if self.corner_radius > Pixels::ZERO {
8264 builder.curve_to(bottom_right - curve_width, bottom_right);
8265 }
8266 builder.line_to(next_top_right + curve_width);
8267 if self.corner_radius > Pixels::ZERO {
8268 builder.curve_to(next_top_right + curve_height, next_top_right);
8269 }
8270 }
8271 Ordering::Greater => {
8272 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8273 builder.line_to(bottom_right - curve_height);
8274 if self.corner_radius > Pixels::ZERO {
8275 builder.curve_to(bottom_right + curve_width, bottom_right);
8276 }
8277 builder.line_to(next_top_right - curve_width);
8278 if self.corner_radius > Pixels::ZERO {
8279 builder.curve_to(next_top_right + curve_height, next_top_right);
8280 }
8281 }
8282 }
8283 } else {
8284 let curve_width = curve_width(line.start_x, line.end_x);
8285 builder.line_to(bottom_right - curve_height);
8286 if self.corner_radius > Pixels::ZERO {
8287 builder.curve_to(bottom_right - curve_width, bottom_right);
8288 }
8289
8290 let bottom_left = point(line.start_x, bottom_right.y);
8291 builder.line_to(bottom_left + curve_width);
8292 if self.corner_radius > Pixels::ZERO {
8293 builder.curve_to(bottom_left - curve_height, bottom_left);
8294 }
8295 }
8296 }
8297
8298 if first_line.start_x > last_line.start_x {
8299 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8300 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8301 builder.line_to(second_top_left + curve_height);
8302 if self.corner_radius > Pixels::ZERO {
8303 builder.curve_to(second_top_left + curve_width, second_top_left);
8304 }
8305 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8306 builder.line_to(first_bottom_left - curve_width);
8307 if self.corner_radius > Pixels::ZERO {
8308 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8309 }
8310 }
8311
8312 builder.line_to(first_top_left + curve_height);
8313 if self.corner_radius > Pixels::ZERO {
8314 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8315 }
8316 builder.line_to(first_top_right - top_curve_width);
8317
8318 if let Ok(path) = builder.build() {
8319 window.paint_path(path, self.color);
8320 }
8321 }
8322}
8323
8324enum CursorPopoverType {
8325 CodeContextMenu,
8326 EditPrediction,
8327}
8328
8329pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8330 (delta.pow(1.5) / 100.0).into()
8331}
8332
8333fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8334 (delta.pow(1.2) / 300.0).into()
8335}
8336
8337pub fn register_action<T: Action>(
8338 editor: &Entity<Editor>,
8339 window: &mut Window,
8340 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8341) {
8342 let editor = editor.clone();
8343 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8344 let action = action.downcast_ref().unwrap();
8345 if phase == DispatchPhase::Bubble {
8346 editor.update(cx, |editor, cx| {
8347 listener(editor, action, window, cx);
8348 })
8349 }
8350 })
8351}
8352
8353fn compute_auto_height_layout(
8354 editor: &mut Editor,
8355 max_lines: usize,
8356 max_line_number_width: Pixels,
8357 known_dimensions: Size<Option<Pixels>>,
8358 available_width: AvailableSpace,
8359 window: &mut Window,
8360 cx: &mut Context<Editor>,
8361) -> Option<Size<Pixels>> {
8362 let width = known_dimensions.width.or({
8363 if let AvailableSpace::Definite(available_width) = available_width {
8364 Some(available_width)
8365 } else {
8366 None
8367 }
8368 })?;
8369 if let Some(height) = known_dimensions.height {
8370 return Some(size(width, height));
8371 }
8372
8373 let style = editor.style.as_ref().unwrap();
8374 let font_id = window.text_system().resolve_font(&style.text.font());
8375 let font_size = style.text.font_size.to_pixels(window.rem_size());
8376 let line_height = style.text.line_height_in_pixels(window.rem_size());
8377 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8378
8379 let mut snapshot = editor.snapshot(window, cx);
8380 let gutter_dimensions = snapshot
8381 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8382 .unwrap_or_default();
8383
8384 editor.gutter_dimensions = gutter_dimensions;
8385 let text_width = width - gutter_dimensions.width;
8386 let overscroll = size(em_width, px(0.));
8387
8388 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8389 if editor.set_wrap_width(Some(editor_width), cx) {
8390 snapshot = editor.snapshot(window, cx);
8391 }
8392
8393 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8394 let height = scroll_height
8395 .max(line_height)
8396 .min(line_height * max_lines as f32);
8397
8398 Some(size(width, height))
8399}
8400
8401#[cfg(test)]
8402mod tests {
8403 use super::*;
8404 use crate::{
8405 display_map::{BlockPlacement, BlockProperties},
8406 editor_tests::{init_test, update_test_language_settings},
8407 Editor, MultiBuffer,
8408 };
8409 use gpui::{TestAppContext, VisualTestContext};
8410 use language::language_settings;
8411 use log::info;
8412 use similar::DiffableStr;
8413 use std::num::NonZeroU32;
8414 use util::test::sample_text;
8415
8416 #[gpui::test]
8417 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8418 init_test(cx, |_| {});
8419 let window = cx.add_window(|window, cx| {
8420 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8421 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8422 });
8423
8424 let editor = window.root(cx).unwrap();
8425 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8426 let line_height = window
8427 .update(cx, |_, window, _| {
8428 style.text.line_height_in_pixels(window.rem_size())
8429 })
8430 .unwrap();
8431 let element = EditorElement::new(&editor, style);
8432 let snapshot = window
8433 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8434 .unwrap();
8435
8436 let layouts = cx
8437 .update_window(*window, |_, window, cx| {
8438 element.layout_line_numbers(
8439 None,
8440 GutterDimensions {
8441 left_padding: Pixels::ZERO,
8442 right_padding: Pixels::ZERO,
8443 width: px(30.0),
8444 margin: Pixels::ZERO,
8445 git_blame_entries_width: None,
8446 },
8447 line_height,
8448 gpui::Point::default(),
8449 DisplayRow(0)..DisplayRow(6),
8450 &(0..6)
8451 .map(|row| RowInfo {
8452 buffer_row: Some(row),
8453 ..Default::default()
8454 })
8455 .collect::<Vec<_>>(),
8456 Some(DisplayPoint::new(DisplayRow(0), 0)),
8457 &snapshot,
8458 window,
8459 cx,
8460 )
8461 })
8462 .unwrap();
8463 assert_eq!(layouts.len(), 6);
8464
8465 let relative_rows = window
8466 .update(cx, |editor, window, cx| {
8467 let snapshot = editor.snapshot(window, cx);
8468 element.calculate_relative_line_numbers(
8469 &snapshot,
8470 &(DisplayRow(0)..DisplayRow(6)),
8471 Some(DisplayRow(3)),
8472 )
8473 })
8474 .unwrap();
8475 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8476 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8477 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8478 // current line has no relative number
8479 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8480 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8481
8482 // works if cursor is before screen
8483 let relative_rows = window
8484 .update(cx, |editor, window, cx| {
8485 let snapshot = editor.snapshot(window, cx);
8486 element.calculate_relative_line_numbers(
8487 &snapshot,
8488 &(DisplayRow(3)..DisplayRow(6)),
8489 Some(DisplayRow(1)),
8490 )
8491 })
8492 .unwrap();
8493 assert_eq!(relative_rows.len(), 3);
8494 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8495 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8496 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8497
8498 // works if cursor is after screen
8499 let relative_rows = window
8500 .update(cx, |editor, window, cx| {
8501 let snapshot = editor.snapshot(window, cx);
8502 element.calculate_relative_line_numbers(
8503 &snapshot,
8504 &(DisplayRow(0)..DisplayRow(3)),
8505 Some(DisplayRow(6)),
8506 )
8507 })
8508 .unwrap();
8509 assert_eq!(relative_rows.len(), 3);
8510 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8511 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8512 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8513 }
8514
8515 #[gpui::test]
8516 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8517 init_test(cx, |_| {});
8518
8519 let window = cx.add_window(|window, cx| {
8520 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8521 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8522 });
8523 let cx = &mut VisualTestContext::from_window(*window, cx);
8524 let editor = window.root(cx).unwrap();
8525 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8526
8527 window
8528 .update(cx, |editor, window, cx| {
8529 editor.cursor_shape = CursorShape::Block;
8530 editor.change_selections(None, window, cx, |s| {
8531 s.select_ranges([
8532 Point::new(0, 0)..Point::new(1, 0),
8533 Point::new(3, 2)..Point::new(3, 3),
8534 Point::new(5, 6)..Point::new(6, 0),
8535 ]);
8536 });
8537 })
8538 .unwrap();
8539
8540 let (_, state) = cx.draw(
8541 point(px(500.), px(500.)),
8542 size(px(500.), px(500.)),
8543 |_, _| EditorElement::new(&editor, style),
8544 );
8545
8546 assert_eq!(state.selections.len(), 1);
8547 let local_selections = &state.selections[0].1;
8548 assert_eq!(local_selections.len(), 3);
8549 // moves cursor back one line
8550 assert_eq!(
8551 local_selections[0].head,
8552 DisplayPoint::new(DisplayRow(0), 6)
8553 );
8554 assert_eq!(
8555 local_selections[0].range,
8556 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8557 );
8558
8559 // moves cursor back one column
8560 assert_eq!(
8561 local_selections[1].range,
8562 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8563 );
8564 assert_eq!(
8565 local_selections[1].head,
8566 DisplayPoint::new(DisplayRow(3), 2)
8567 );
8568
8569 // leaves cursor on the max point
8570 assert_eq!(
8571 local_selections[2].range,
8572 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8573 );
8574 assert_eq!(
8575 local_selections[2].head,
8576 DisplayPoint::new(DisplayRow(6), 0)
8577 );
8578
8579 // active lines does not include 1 (even though the range of the selection does)
8580 assert_eq!(
8581 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8582 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8583 );
8584
8585 // multi-buffer support
8586 // in DisplayPoint coordinates, this is what we're dealing with:
8587 // 0: [[file
8588 // 1: header
8589 // 2: section]]
8590 // 3: aaaaaa
8591 // 4: bbbbbb
8592 // 5: cccccc
8593 // 6:
8594 // 7: [[footer]]
8595 // 8: [[header]]
8596 // 9: ffffff
8597 // 10: gggggg
8598 // 11: hhhhhh
8599 // 12:
8600 // 13: [[footer]]
8601 // 14: [[file
8602 // 15: header
8603 // 16: section]]
8604 // 17: bbbbbb
8605 // 18: cccccc
8606 // 19: dddddd
8607 // 20: [[footer]]
8608 let window = cx.add_window(|window, cx| {
8609 let buffer = MultiBuffer::build_multi(
8610 [
8611 (
8612 &(sample_text(8, 6, 'a') + "\n"),
8613 vec![
8614 Point::new(0, 0)..Point::new(3, 0),
8615 Point::new(4, 0)..Point::new(7, 0),
8616 ],
8617 ),
8618 (
8619 &(sample_text(8, 6, 'a') + "\n"),
8620 vec![Point::new(1, 0)..Point::new(3, 0)],
8621 ),
8622 ],
8623 cx,
8624 );
8625 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8626 });
8627 let editor = window.root(cx).unwrap();
8628 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8629 let _state = window.update(cx, |editor, window, cx| {
8630 editor.cursor_shape = CursorShape::Block;
8631 editor.change_selections(None, window, cx, |s| {
8632 s.select_display_ranges([
8633 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8634 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8635 ]);
8636 });
8637 });
8638
8639 let (_, state) = cx.draw(
8640 point(px(500.), px(500.)),
8641 size(px(500.), px(500.)),
8642 |_, _| EditorElement::new(&editor, style),
8643 );
8644 assert_eq!(state.selections.len(), 1);
8645 let local_selections = &state.selections[0].1;
8646 assert_eq!(local_selections.len(), 2);
8647
8648 // moves cursor on excerpt boundary back a line
8649 // and doesn't allow selection to bleed through
8650 assert_eq!(
8651 local_selections[0].range,
8652 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8653 );
8654 assert_eq!(
8655 local_selections[0].head,
8656 DisplayPoint::new(DisplayRow(6), 0)
8657 );
8658 // moves cursor on buffer boundary back two lines
8659 // and doesn't allow selection to bleed through
8660 assert_eq!(
8661 local_selections[1].range,
8662 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8663 );
8664 assert_eq!(
8665 local_selections[1].head,
8666 DisplayPoint::new(DisplayRow(12), 0)
8667 );
8668 }
8669
8670 #[gpui::test]
8671 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8672 init_test(cx, |_| {});
8673
8674 let window = cx.add_window(|window, cx| {
8675 let buffer = MultiBuffer::build_simple("", cx);
8676 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8677 });
8678 let cx = &mut VisualTestContext::from_window(*window, cx);
8679 let editor = window.root(cx).unwrap();
8680 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8681 window
8682 .update(cx, |editor, window, cx| {
8683 editor.set_placeholder_text("hello", cx);
8684 editor.insert_blocks(
8685 [BlockProperties {
8686 style: BlockStyle::Fixed,
8687 placement: BlockPlacement::Above(Anchor::min()),
8688 height: 3,
8689 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8690 priority: 0,
8691 }],
8692 None,
8693 cx,
8694 );
8695
8696 // Blur the editor so that it displays placeholder text.
8697 window.blur();
8698 })
8699 .unwrap();
8700
8701 let (_, state) = cx.draw(
8702 point(px(500.), px(500.)),
8703 size(px(500.), px(500.)),
8704 |_, _| EditorElement::new(&editor, style),
8705 );
8706 assert_eq!(state.position_map.line_layouts.len(), 4);
8707 assert_eq!(state.line_numbers.len(), 1);
8708 assert_eq!(
8709 state
8710 .line_numbers
8711 .get(&MultiBufferRow(0))
8712 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8713 Some("1")
8714 );
8715 }
8716
8717 #[gpui::test]
8718 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8719 const TAB_SIZE: u32 = 4;
8720
8721 let input_text = "\t \t|\t| a b";
8722 let expected_invisibles = vec![
8723 Invisible::Tab {
8724 line_start_offset: 0,
8725 line_end_offset: TAB_SIZE as usize,
8726 },
8727 Invisible::Whitespace {
8728 line_offset: TAB_SIZE as usize,
8729 },
8730 Invisible::Tab {
8731 line_start_offset: TAB_SIZE as usize + 1,
8732 line_end_offset: TAB_SIZE as usize * 2,
8733 },
8734 Invisible::Tab {
8735 line_start_offset: TAB_SIZE as usize * 2 + 1,
8736 line_end_offset: TAB_SIZE as usize * 3,
8737 },
8738 Invisible::Whitespace {
8739 line_offset: TAB_SIZE as usize * 3 + 1,
8740 },
8741 Invisible::Whitespace {
8742 line_offset: TAB_SIZE as usize * 3 + 3,
8743 },
8744 ];
8745 assert_eq!(
8746 expected_invisibles.len(),
8747 input_text
8748 .chars()
8749 .filter(|initial_char| initial_char.is_whitespace())
8750 .count(),
8751 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8752 );
8753
8754 for show_line_numbers in [true, false] {
8755 init_test(cx, |s| {
8756 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8757 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8758 });
8759
8760 let actual_invisibles = collect_invisibles_from_new_editor(
8761 cx,
8762 EditorMode::Full,
8763 input_text,
8764 px(500.0),
8765 show_line_numbers,
8766 );
8767
8768 assert_eq!(expected_invisibles, actual_invisibles);
8769 }
8770 }
8771
8772 #[gpui::test]
8773 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8774 init_test(cx, |s| {
8775 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8776 s.defaults.tab_size = NonZeroU32::new(4);
8777 });
8778
8779 for editor_mode_without_invisibles in [
8780 EditorMode::SingleLine { auto_width: false },
8781 EditorMode::AutoHeight { max_lines: 100 },
8782 ] {
8783 for show_line_numbers in [true, false] {
8784 let invisibles = collect_invisibles_from_new_editor(
8785 cx,
8786 editor_mode_without_invisibles,
8787 "\t\t\t| | a b",
8788 px(500.0),
8789 show_line_numbers,
8790 );
8791 assert!(invisibles.is_empty(),
8792 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8793 }
8794 }
8795 }
8796
8797 #[gpui::test]
8798 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8799 let tab_size = 4;
8800 let input_text = "a\tbcd ".repeat(9);
8801 let repeated_invisibles = [
8802 Invisible::Tab {
8803 line_start_offset: 1,
8804 line_end_offset: tab_size as usize,
8805 },
8806 Invisible::Whitespace {
8807 line_offset: tab_size as usize + 3,
8808 },
8809 Invisible::Whitespace {
8810 line_offset: tab_size as usize + 4,
8811 },
8812 Invisible::Whitespace {
8813 line_offset: tab_size as usize + 5,
8814 },
8815 Invisible::Whitespace {
8816 line_offset: tab_size as usize + 6,
8817 },
8818 Invisible::Whitespace {
8819 line_offset: tab_size as usize + 7,
8820 },
8821 ];
8822 let expected_invisibles = std::iter::once(repeated_invisibles)
8823 .cycle()
8824 .take(9)
8825 .flatten()
8826 .collect::<Vec<_>>();
8827 assert_eq!(
8828 expected_invisibles.len(),
8829 input_text
8830 .chars()
8831 .filter(|initial_char| initial_char.is_whitespace())
8832 .count(),
8833 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8834 );
8835 info!("Expected invisibles: {expected_invisibles:?}");
8836
8837 init_test(cx, |_| {});
8838
8839 // Put the same string with repeating whitespace pattern into editors of various size,
8840 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8841 let resize_step = 10.0;
8842 let mut editor_width = 200.0;
8843 while editor_width <= 1000.0 {
8844 for show_line_numbers in [true, false] {
8845 update_test_language_settings(cx, |s| {
8846 s.defaults.tab_size = NonZeroU32::new(tab_size);
8847 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8848 s.defaults.preferred_line_length = Some(editor_width as u32);
8849 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8850 });
8851
8852 let actual_invisibles = collect_invisibles_from_new_editor(
8853 cx,
8854 EditorMode::Full,
8855 &input_text,
8856 px(editor_width),
8857 show_line_numbers,
8858 );
8859
8860 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8861 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8862 let mut i = 0;
8863 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8864 i = actual_index;
8865 match expected_invisibles.get(i) {
8866 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8867 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8868 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8869 _ => {
8870 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8871 }
8872 },
8873 None => {
8874 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8875 }
8876 }
8877 }
8878 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8879 assert!(
8880 missing_expected_invisibles.is_empty(),
8881 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8882 );
8883
8884 editor_width += resize_step;
8885 }
8886 }
8887 }
8888
8889 fn collect_invisibles_from_new_editor(
8890 cx: &mut TestAppContext,
8891 editor_mode: EditorMode,
8892 input_text: &str,
8893 editor_width: Pixels,
8894 show_line_numbers: bool,
8895 ) -> Vec<Invisible> {
8896 info!(
8897 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8898 editor_width.0
8899 );
8900 let window = cx.add_window(|window, cx| {
8901 let buffer = MultiBuffer::build_simple(input_text, cx);
8902 Editor::new(editor_mode, buffer, None, true, window, cx)
8903 });
8904 let cx = &mut VisualTestContext::from_window(*window, cx);
8905 let editor = window.root(cx).unwrap();
8906
8907 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8908 window
8909 .update(cx, |editor, _, cx| {
8910 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8911 editor.set_wrap_width(Some(editor_width), cx);
8912 editor.set_show_line_numbers(show_line_numbers, cx);
8913 })
8914 .unwrap();
8915 let (_, state) = cx.draw(
8916 point(px(500.), px(500.)),
8917 size(px(500.), px(500.)),
8918 |_, _| EditorElement::new(&editor, style),
8919 );
8920 state
8921 .position_map
8922 .line_layouts
8923 .iter()
8924 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8925 .cloned()
8926 .collect()
8927 }
8928}
8929
8930fn diff_hunk_controls(
8931 row: u32,
8932 hunk_range: Range<Anchor>,
8933 line_height: Pixels,
8934 editor: &Entity<Editor>,
8935 _window: &mut Window,
8936 cx: &mut App,
8937) -> AnyElement {
8938 let stage = editor.update(cx, |editor, cx| {
8939 let snapshot = editor.buffer.read(cx).snapshot(cx);
8940 editor.has_stageable_diff_hunks_in_ranges(&[hunk_range.start..hunk_range.start], &snapshot)
8941 });
8942 h_flex()
8943 .h(line_height)
8944 .mr_1()
8945 .gap_1()
8946 .px_1()
8947 .pb_1()
8948 .border_b_1()
8949 .border_color(cx.theme().colors().border_variant)
8950 .rounded_b_lg()
8951 .bg(cx.theme().colors().editor_background)
8952 .gap_1()
8953 .child(
8954 IconButton::new(("discard-hunk", row as u64), IconName::Undo)
8955 .shape(IconButtonShape::Square)
8956 .icon_size(IconSize::Small)
8957 .tooltip({
8958 let focus_handle = editor.focus_handle(cx);
8959 move |window, cx| {
8960 Tooltip::for_action_in(
8961 "Discard Hunk",
8962 &RevertSelectedHunks,
8963 &focus_handle,
8964 window,
8965 cx,
8966 )
8967 }
8968 })
8969 .on_click({
8970 let editor = editor.clone();
8971 move |_event, window, cx| {
8972 editor.update(cx, |editor, cx| {
8973 let snapshot = editor.snapshot(window, cx);
8974 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8975 editor.discard_hunks_in_ranges([point..point].into_iter(), window, cx);
8976 });
8977 }
8978 }),
8979 )
8980 .child(
8981 Button::new(("skip-hunk", row as u64), "Skip")
8982 .label_size(LabelSize::Small)
8983 .tooltip({
8984 let focus_handle = editor.focus_handle(cx);
8985 move |window, cx| {
8986 Tooltip::for_action_in("Skip Hunk", &GoToHunk, &focus_handle, window, cx)
8987 }
8988 })
8989 .on_click({
8990 let editor = editor.clone();
8991 move |_event, window, cx| {
8992 editor.update(cx, |editor, cx| {
8993 let snapshot = editor.snapshot(window, cx);
8994 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8995 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8996 editor.expand_selected_diff_hunks(cx);
8997 });
8998 }
8999 }),
9000 )
9001 .child(
9002 Button::new(
9003 ("stage-unstage-hunk", row as u64),
9004 if stage { "Stage" } else { "Unstage" },
9005 )
9006 .label_size(LabelSize::Small)
9007 .tooltip({
9008 let focus_handle = editor.focus_handle(cx);
9009 move |window, cx| {
9010 Tooltip::for_action_in(
9011 if stage { "Stage Hunk" } else { "Unstage Hunk" },
9012 &ToggleStagedSelectedDiffHunks,
9013 &focus_handle,
9014 window,
9015 cx,
9016 )
9017 }
9018 })
9019 .on_click({
9020 let editor = editor.clone();
9021 move |_event, _window, cx| {
9022 editor.update(cx, |editor, cx| {
9023 editor
9024 .stage_or_unstage_diff_hunks(&[hunk_range.start..hunk_range.start], cx);
9025 });
9026 }
9027 }),
9028 )
9029 .into_any_element()
9030}