1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point,
23 RevertSelectedHunks, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection,
24 SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS,
25 CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
26 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
27};
28use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus};
29use client::ParticipantIndex;
30use collections::{BTreeMap, HashMap, HashSet};
31use file_icons::FileIcons;
32use git::{blame::BlameEntry, Oid};
33use gpui::{
34 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
35 point, px, quad, relative, size, svg, transparent_black, Action, AnyElement, App,
36 AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners,
37 CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _,
38 FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
39 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
40 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
41 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement, 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, BufferLineHeight, 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};
79
80const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
81const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
82
83#[derive(Debug, Clone, PartialEq, Eq)]
84enum DisplayDiffHunk {
85 Folded {
86 display_row: DisplayRow,
87 },
88 Unfolded {
89 diff_base_byte_range: Range<usize>,
90 display_row_range: Range<DisplayRow>,
91 multi_buffer_range: Range<Anchor>,
92 status: DiffHunkStatus,
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
519 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
520 })
521 }
522 });
523 }
524
525 fn mouse_left_down(
526 editor: &mut Editor,
527 event: &MouseDownEvent,
528 hovered_hunk: Option<Range<Anchor>>,
529 position_map: &PositionMap,
530 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
531 window: &mut Window,
532 cx: &mut Context<Editor>,
533 ) {
534 if window.default_prevented() {
535 return;
536 }
537
538 let text_hitbox = &position_map.text_hitbox;
539 let gutter_hitbox = &position_map.gutter_hitbox;
540 let mut click_count = event.click_count;
541 let mut modifiers = event.modifiers;
542
543 if let Some(hovered_hunk) = hovered_hunk {
544 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
545 cx.notify();
546 return;
547 } else if gutter_hitbox.is_hovered(window) {
548 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
549 } else if !text_hitbox.is_hovered(window) {
550 return;
551 }
552
553 let is_singleton = editor.buffer().read(cx).is_singleton();
554
555 if click_count == 2 && !is_singleton {
556 match EditorSettings::get_global(cx).double_click_in_multibuffer {
557 DoubleClickInMultibuffer::Select => {
558 // do nothing special on double click, all selection logic is below
559 }
560 DoubleClickInMultibuffer::Open => {
561 if modifiers.alt {
562 // if double click is made with alt, pretend it's a regular double click without opening and alt,
563 // and run the selection logic.
564 modifiers.alt = false;
565 } else {
566 let scroll_position_row =
567 position_map.scroll_pixel_position.y / position_map.line_height;
568 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
569 + position_map.scroll_pixel_position.y)
570 / position_map.line_height)
571 as u32;
572 let multi_buffer_row = position_map
573 .snapshot
574 .display_point_to_point(
575 DisplayPoint::new(DisplayRow(display_row), 0),
576 Bias::Right,
577 )
578 .row;
579 let line_offset_from_top = display_row - scroll_position_row as u32;
580 // if double click is made without alt, open the corresponding excerp
581 editor.open_excerpts_common(
582 Some(JumpData::MultiBufferRow {
583 row: MultiBufferRow(multi_buffer_row),
584 line_offset_from_top,
585 }),
586 false,
587 window,
588 cx,
589 );
590 return;
591 }
592 }
593 }
594 }
595
596 let point_for_position = position_map.point_for_position(event.position);
597 let position = point_for_position.previous_valid;
598 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
599 editor.select(
600 SelectPhase::BeginColumnar {
601 position,
602 reset: false,
603 goal_column: point_for_position.exact_unclipped.column(),
604 },
605 window,
606 cx,
607 );
608 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
609 {
610 editor.select(
611 SelectPhase::Extend {
612 position,
613 click_count,
614 },
615 window,
616 cx,
617 );
618 } else {
619 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
620 let multi_cursor_modifier = match multi_cursor_setting {
621 MultiCursorModifier::Alt => modifiers.alt,
622 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
623 };
624 editor.select(
625 SelectPhase::Begin {
626 position,
627 add: multi_cursor_modifier,
628 click_count,
629 },
630 window,
631 cx,
632 );
633 }
634 cx.stop_propagation();
635
636 if !is_singleton {
637 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
638 + position_map.scroll_pixel_position.y)
639 / position_map.line_height) as u32;
640 let multi_buffer_row = position_map
641 .snapshot
642 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
643 .row;
644 if line_numbers
645 .get(&MultiBufferRow(multi_buffer_row))
646 .and_then(|line_number| line_number.hitbox.as_ref())
647 .is_some_and(|hitbox| hitbox.contains(&event.position))
648 {
649 let scroll_position_row =
650 position_map.scroll_pixel_position.y / position_map.line_height;
651 let line_offset_from_top = display_row - scroll_position_row as u32;
652
653 editor.open_excerpts_common(
654 Some(JumpData::MultiBufferRow {
655 row: MultiBufferRow(multi_buffer_row),
656 line_offset_from_top,
657 }),
658 modifiers.alt,
659 window,
660 cx,
661 );
662 cx.stop_propagation();
663 }
664 }
665 }
666
667 fn mouse_right_down(
668 editor: &mut Editor,
669 event: &MouseDownEvent,
670 position_map: &PositionMap,
671 window: &mut Window,
672 cx: &mut Context<Editor>,
673 ) {
674 if !position_map.text_hitbox.is_hovered(window) {
675 return;
676 }
677 let point_for_position = position_map.point_for_position(event.position);
678 mouse_context_menu::deploy_context_menu(
679 editor,
680 Some(event.position),
681 point_for_position.previous_valid,
682 window,
683 cx,
684 );
685 cx.stop_propagation();
686 }
687
688 fn mouse_middle_down(
689 editor: &mut Editor,
690 event: &MouseDownEvent,
691 position_map: &PositionMap,
692 window: &mut Window,
693 cx: &mut Context<Editor>,
694 ) {
695 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
696 return;
697 }
698
699 let point_for_position = position_map.point_for_position(event.position);
700 let position = point_for_position.previous_valid;
701
702 editor.select(
703 SelectPhase::BeginColumnar {
704 position,
705 reset: true,
706 goal_column: point_for_position.exact_unclipped.column(),
707 },
708 window,
709 cx,
710 );
711 }
712
713 fn mouse_up(
714 editor: &mut Editor,
715 event: &MouseUpEvent,
716 position_map: &PositionMap,
717 window: &mut Window,
718 cx: &mut Context<Editor>,
719 ) {
720 let text_hitbox = &position_map.text_hitbox;
721 let end_selection = editor.has_pending_selection();
722 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
723
724 if end_selection {
725 editor.select(SelectPhase::End, window, cx);
726 }
727
728 if end_selection && pending_nonempty_selections {
729 cx.stop_propagation();
730 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
731 && event.button == MouseButton::Middle
732 {
733 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
734 return;
735 }
736
737 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
738 if EditorSettings::get_global(cx).middle_click_paste {
739 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
740 let point_for_position = position_map.point_for_position(event.position);
741 let position = point_for_position.previous_valid;
742
743 editor.select(
744 SelectPhase::Begin {
745 position,
746 add: false,
747 click_count: 1,
748 },
749 window,
750 cx,
751 );
752 editor.insert(&text, window, cx);
753 }
754 cx.stop_propagation()
755 }
756 }
757 }
758
759 fn click(
760 editor: &mut Editor,
761 event: &ClickEvent,
762 position_map: &PositionMap,
763 window: &mut Window,
764 cx: &mut Context<Editor>,
765 ) {
766 let text_hitbox = &position_map.text_hitbox;
767 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
768
769 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
770 let multi_cursor_modifier = match multi_cursor_setting {
771 MultiCursorModifier::Alt => event.modifiers().secondary(),
772 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
773 };
774
775 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
776 let point = position_map.point_for_position(event.up.position);
777 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
778
779 cx.stop_propagation();
780 }
781 }
782
783 fn mouse_dragged(
784 editor: &mut Editor,
785 event: &MouseMoveEvent,
786 position_map: &PositionMap,
787 window: &mut Window,
788 cx: &mut Context<Editor>,
789 ) {
790 if !editor.has_pending_selection() {
791 return;
792 }
793
794 let text_bounds = position_map.text_hitbox.bounds;
795 let point_for_position = position_map.point_for_position(event.position);
796 let mut scroll_delta = gpui::Point::<f32>::default();
797 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
798 let top = text_bounds.origin.y + vertical_margin;
799 let bottom = text_bounds.bottom_left().y - vertical_margin;
800 if event.position.y < top {
801 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
802 }
803 if event.position.y > bottom {
804 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
805 }
806
807 // We need horizontal width of text
808 let style = editor.style.clone().unwrap_or_default();
809 let font_id = window.text_system().resolve_font(&style.text.font());
810 let font_size = style.text.font_size.to_pixels(window.rem_size());
811 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
812
813 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
814
815 let scroll_space: Pixels = scroll_margin_x * em_width;
816
817 let left = text_bounds.origin.x + scroll_space;
818 let right = text_bounds.top_right().x - scroll_space;
819
820 if event.position.x < left {
821 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
822 }
823 if event.position.x > right {
824 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
825 }
826
827 editor.select(
828 SelectPhase::Update {
829 position: point_for_position.previous_valid,
830 goal_column: point_for_position.exact_unclipped.column(),
831 scroll_delta,
832 },
833 window,
834 cx,
835 );
836 }
837
838 fn mouse_moved(
839 editor: &mut Editor,
840 event: &MouseMoveEvent,
841 position_map: &PositionMap,
842 window: &mut Window,
843 cx: &mut Context<Editor>,
844 ) {
845 let text_hitbox = &position_map.text_hitbox;
846 let gutter_hitbox = &position_map.gutter_hitbox;
847 let modifiers = event.modifiers;
848 let gutter_hovered = gutter_hitbox.is_hovered(window);
849 editor.set_gutter_hovered(gutter_hovered, cx);
850
851 // Don't trigger hover popover if mouse is hovering over context menu
852 if text_hitbox.is_hovered(window) {
853 let point_for_position = position_map.point_for_position(event.position);
854
855 editor.update_hovered_link(
856 point_for_position,
857 &position_map.snapshot,
858 modifiers,
859 window,
860 cx,
861 );
862
863 if let Some(point) = point_for_position.as_valid() {
864 let anchor = position_map
865 .snapshot
866 .buffer_snapshot
867 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
868 hover_at(editor, Some(anchor), window, cx);
869 Self::update_visible_cursor(editor, point, position_map, window, cx);
870 } else {
871 hover_at(editor, None, window, cx);
872 }
873 } else {
874 editor.hide_hovered_link(cx);
875 hover_at(editor, None, window, cx);
876 if gutter_hovered {
877 cx.stop_propagation();
878 }
879 }
880 }
881
882 fn update_visible_cursor(
883 editor: &mut Editor,
884 point: DisplayPoint,
885 position_map: &PositionMap,
886 window: &mut Window,
887 cx: &mut Context<Editor>,
888 ) {
889 let snapshot = &position_map.snapshot;
890 let Some(hub) = editor.collaboration_hub() else {
891 return;
892 };
893 let start = snapshot.display_snapshot.clip_point(
894 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
895 Bias::Left,
896 );
897 let end = snapshot.display_snapshot.clip_point(
898 DisplayPoint::new(
899 point.row(),
900 (point.column() + 1).min(snapshot.line_len(point.row())),
901 ),
902 Bias::Right,
903 );
904
905 let range = snapshot
906 .buffer_snapshot
907 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
908 ..snapshot
909 .buffer_snapshot
910 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
911
912 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
913 return;
914 };
915 let key = crate::HoveredCursor {
916 replica_id: selection.replica_id,
917 selection_id: selection.selection.id,
918 };
919 editor.hovered_cursors.insert(
920 key.clone(),
921 cx.spawn_in(window, |editor, mut cx| async move {
922 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
923 editor
924 .update(&mut cx, |editor, cx| {
925 editor.hovered_cursors.remove(&key);
926 cx.notify();
927 })
928 .ok();
929 }),
930 );
931 cx.notify()
932 }
933
934 #[allow(clippy::too_many_arguments)]
935 fn layout_selections(
936 &self,
937 start_anchor: Anchor,
938 end_anchor: Anchor,
939 local_selections: &[Selection<Point>],
940 snapshot: &EditorSnapshot,
941 start_row: DisplayRow,
942 end_row: DisplayRow,
943 window: &mut Window,
944 cx: &mut App,
945 ) -> (
946 Vec<(PlayerColor, Vec<SelectionLayout>)>,
947 BTreeMap<DisplayRow, bool>,
948 Option<DisplayPoint>,
949 ) {
950 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
951 let mut active_rows = BTreeMap::new();
952 let mut newest_selection_head = None;
953 self.editor.update(cx, |editor, cx| {
954 if editor.show_local_selections {
955 let mut layouts = Vec::new();
956 let newest = editor.selections.newest(cx);
957 for selection in local_selections.iter().cloned() {
958 let is_empty = selection.start == selection.end;
959 let is_newest = selection == newest;
960
961 let layout = SelectionLayout::new(
962 selection,
963 editor.selections.line_mode,
964 editor.cursor_shape,
965 &snapshot.display_snapshot,
966 is_newest,
967 editor.leader_peer_id.is_none(),
968 None,
969 );
970 if is_newest {
971 newest_selection_head = Some(layout.head);
972 }
973
974 for row in cmp::max(layout.active_rows.start.0, start_row.0)
975 ..=cmp::min(layout.active_rows.end.0, end_row.0)
976 {
977 let contains_non_empty_selection =
978 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
979 *contains_non_empty_selection |= !is_empty;
980 }
981 layouts.push(layout);
982 }
983
984 let player = editor.current_user_player_color(cx);
985 selections.push((player, layouts));
986 }
987
988 if let Some(collaboration_hub) = &editor.collaboration_hub {
989 // When following someone, render the local selections in their color.
990 if let Some(leader_id) = editor.leader_peer_id {
991 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
992 {
993 if let Some(participant_index) = collaboration_hub
994 .user_participant_indices(cx)
995 .get(&collaborator.user_id)
996 {
997 if let Some((local_selection_style, _)) = selections.first_mut() {
998 *local_selection_style = cx
999 .theme()
1000 .players()
1001 .color_for_participant(participant_index.0);
1002 }
1003 }
1004 }
1005 }
1006
1007 let mut remote_selections = HashMap::default();
1008 for selection in snapshot.remote_selections_in_range(
1009 &(start_anchor..end_anchor),
1010 collaboration_hub.as_ref(),
1011 cx,
1012 ) {
1013 let selection_style =
1014 Self::get_participant_color(selection.participant_index, cx);
1015
1016 // Don't re-render the leader's selections, since the local selections
1017 // match theirs.
1018 if Some(selection.peer_id) == editor.leader_peer_id {
1019 continue;
1020 }
1021 let key = HoveredCursor {
1022 replica_id: selection.replica_id,
1023 selection_id: selection.selection.id,
1024 };
1025
1026 let is_shown =
1027 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1028
1029 remote_selections
1030 .entry(selection.replica_id)
1031 .or_insert((selection_style, Vec::new()))
1032 .1
1033 .push(SelectionLayout::new(
1034 selection.selection,
1035 selection.line_mode,
1036 selection.cursor_shape,
1037 &snapshot.display_snapshot,
1038 false,
1039 false,
1040 if is_shown { selection.user_name } else { None },
1041 ));
1042 }
1043
1044 selections.extend(remote_selections.into_values());
1045 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1046 let layouts = snapshot
1047 .buffer_snapshot
1048 .selections_in_range(&(start_anchor..end_anchor), true)
1049 .map(move |(_, line_mode, cursor_shape, selection)| {
1050 SelectionLayout::new(
1051 selection,
1052 line_mode,
1053 cursor_shape,
1054 &snapshot.display_snapshot,
1055 false,
1056 false,
1057 None,
1058 )
1059 })
1060 .collect::<Vec<_>>();
1061 let player = editor.current_user_player_color(cx);
1062 selections.push((player, layouts));
1063 }
1064 });
1065 (selections, active_rows, newest_selection_head)
1066 }
1067
1068 fn collect_cursors(
1069 &self,
1070 snapshot: &EditorSnapshot,
1071 cx: &mut App,
1072 ) -> Vec<(DisplayPoint, Hsla)> {
1073 let editor = self.editor.read(cx);
1074 let mut cursors = Vec::new();
1075 let mut skip_local = false;
1076 let mut add_cursor = |anchor: Anchor, color| {
1077 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1078 };
1079 // Remote cursors
1080 if let Some(collaboration_hub) = &editor.collaboration_hub {
1081 for remote_selection in snapshot.remote_selections_in_range(
1082 &(Anchor::min()..Anchor::max()),
1083 collaboration_hub.deref(),
1084 cx,
1085 ) {
1086 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1087 add_cursor(remote_selection.selection.head(), color.cursor);
1088 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1089 skip_local = true;
1090 }
1091 }
1092 }
1093 // Local cursors
1094 if !skip_local {
1095 let color = cx.theme().players().local().cursor;
1096 editor.selections.disjoint.iter().for_each(|selection| {
1097 add_cursor(selection.head(), color);
1098 });
1099 if let Some(ref selection) = editor.selections.pending_anchor() {
1100 add_cursor(selection.head(), color);
1101 }
1102 }
1103 cursors
1104 }
1105
1106 #[allow(clippy::too_many_arguments)]
1107 fn layout_visible_cursors(
1108 &self,
1109 snapshot: &EditorSnapshot,
1110 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1111 block_start_rows: &HashSet<DisplayRow>,
1112 visible_display_row_range: Range<DisplayRow>,
1113 line_layouts: &[LineWithInvisibles],
1114 text_hitbox: &Hitbox,
1115 content_origin: gpui::Point<Pixels>,
1116 scroll_position: gpui::Point<f32>,
1117 scroll_pixel_position: gpui::Point<Pixels>,
1118 line_height: Pixels,
1119 em_width: Pixels,
1120 em_advance: Pixels,
1121 autoscroll_containing_element: bool,
1122 window: &mut Window,
1123 cx: &mut App,
1124 ) -> Vec<CursorLayout> {
1125 let mut autoscroll_bounds = None;
1126 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1127 let mut cursors = Vec::new();
1128
1129 let show_local_cursors = editor.show_local_cursors(window, cx);
1130
1131 for (player_color, selections) in selections {
1132 for selection in selections {
1133 let cursor_position = selection.head;
1134
1135 let in_range = visible_display_row_range.contains(&cursor_position.row());
1136 if (selection.is_local && !show_local_cursors)
1137 || !in_range
1138 || block_start_rows.contains(&cursor_position.row())
1139 {
1140 continue;
1141 }
1142
1143 let cursor_row_layout = &line_layouts
1144 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1145 let cursor_column = cursor_position.column() as usize;
1146
1147 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1148 let mut block_width =
1149 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1150 if block_width == Pixels::ZERO {
1151 block_width = em_advance;
1152 }
1153 let block_text = if let CursorShape::Block = selection.cursor_shape {
1154 snapshot
1155 .grapheme_at(cursor_position)
1156 .or_else(|| {
1157 if cursor_column == 0 {
1158 snapshot.placeholder_text().and_then(|s| {
1159 s.graphemes(true).next().map(|s| s.to_string().into())
1160 })
1161 } else {
1162 None
1163 }
1164 })
1165 .and_then(|text| {
1166 let len = text.len();
1167
1168 let font = cursor_row_layout
1169 .font_id_for_index(cursor_column)
1170 .and_then(|cursor_font_id| {
1171 window.text_system().get_font_for_id(cursor_font_id)
1172 })
1173 .unwrap_or(self.style.text.font());
1174
1175 // Invert the text color for the block cursor. Ensure that the text
1176 // color is opaque enough to be visible against the background color.
1177 //
1178 // 0.75 is an arbitrary threshold to determine if the background color is
1179 // opaque enough to use as a text color.
1180 //
1181 // TODO: In the future we should ensure themes have a `text_inverse` color.
1182 let color = if cx.theme().colors().editor_background.a < 0.75 {
1183 match cx.theme().appearance {
1184 Appearance::Dark => Hsla::black(),
1185 Appearance::Light => Hsla::white(),
1186 }
1187 } else {
1188 cx.theme().colors().editor_background
1189 };
1190
1191 window
1192 .text_system()
1193 .shape_line(
1194 text,
1195 cursor_row_layout.font_size,
1196 &[TextRun {
1197 len,
1198 font,
1199 color,
1200 background_color: None,
1201 strikethrough: None,
1202 underline: None,
1203 }],
1204 )
1205 .log_err()
1206 })
1207 } else {
1208 None
1209 };
1210
1211 let x = cursor_character_x - scroll_pixel_position.x;
1212 let y = (cursor_position.row().as_f32()
1213 - scroll_pixel_position.y / line_height)
1214 * line_height;
1215 if selection.is_newest {
1216 editor.pixel_position_of_newest_cursor = Some(point(
1217 text_hitbox.origin.x + x + block_width / 2.,
1218 text_hitbox.origin.y + y + line_height / 2.,
1219 ));
1220
1221 if autoscroll_containing_element {
1222 let top = text_hitbox.origin.y
1223 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1224 * line_height;
1225 let left = text_hitbox.origin.x
1226 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1227 .max(0.)
1228 * em_width;
1229
1230 let bottom = text_hitbox.origin.y
1231 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1232 * line_height;
1233 let right = text_hitbox.origin.x
1234 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1235 * em_width;
1236
1237 autoscroll_bounds =
1238 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1239 }
1240 }
1241
1242 let mut cursor = CursorLayout {
1243 color: player_color.cursor,
1244 block_width,
1245 origin: point(x, y),
1246 line_height,
1247 shape: selection.cursor_shape,
1248 block_text,
1249 cursor_name: None,
1250 };
1251 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1252 string: name,
1253 color: self.style.background,
1254 is_top_row: cursor_position.row().0 == 0,
1255 });
1256 cursor.layout(content_origin, cursor_name, window, cx);
1257 cursors.push(cursor);
1258 }
1259 }
1260
1261 cursors
1262 });
1263
1264 if let Some(bounds) = autoscroll_bounds {
1265 window.request_autoscroll(bounds);
1266 }
1267
1268 cursor_layouts
1269 }
1270
1271 fn layout_scrollbars(
1272 &self,
1273 snapshot: &EditorSnapshot,
1274 scrollbar_range_data: ScrollbarRangeData,
1275 scroll_position: gpui::Point<f32>,
1276 non_visible_cursors: bool,
1277 window: &mut Window,
1278 cx: &mut App,
1279 ) -> AxisPair<Option<ScrollbarLayout>> {
1280 let letter_size = scrollbar_range_data.letter_size;
1281 let text_units_per_page = axis_pair(
1282 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1283 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1284 );
1285
1286 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1287 let show_scrollbars = self.editor.read(cx).show_scrollbars
1288 && match scrollbar_settings.show {
1289 ShowScrollbar::Auto => {
1290 let editor = self.editor.read(cx);
1291 let is_singleton = editor.is_singleton(cx);
1292 // Git
1293 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1294 ||
1295 // Buffer Search Results
1296 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1297 ||
1298 // Selected Text Occurrences
1299 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1300 ||
1301 // Selected Symbol Occurrences
1302 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1303 ||
1304 // Diagnostics
1305 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1306 ||
1307 // Cursors out of sight
1308 non_visible_cursors
1309 ||
1310 // Scrollmanager
1311 editor.scroll_manager.scrollbars_visible()
1312 }
1313 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1314 ShowScrollbar::Always => true,
1315 ShowScrollbar::Never => false,
1316 };
1317
1318 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1319
1320 if snapshot.mode != EditorMode::Full {
1321 return axis_pair(None, None);
1322 }
1323
1324 let visible_range = axis_pair(
1325 axes.horizontal
1326 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1327 axes.vertical
1328 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1329 );
1330
1331 // If a drag took place after we started dragging the scrollbar,
1332 // cancel the scrollbar drag.
1333 if cx.has_active_drag() {
1334 self.editor.update(cx, |editor, cx| {
1335 editor
1336 .scroll_manager
1337 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1338 editor
1339 .scroll_manager
1340 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1341 });
1342 }
1343
1344 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1345
1346 let track_bounds = axis_pair(
1347 axes.horizontal.then(|| {
1348 Bounds::from_corners(
1349 point(
1350 text_bounds.bottom_left().x,
1351 text_bounds.bottom_left().y - self.style.scrollbar_width,
1352 ),
1353 point(
1354 text_bounds.bottom_right().x
1355 - if axes.vertical {
1356 self.style.scrollbar_width
1357 } else {
1358 px(0.)
1359 },
1360 text_bounds.bottom_right().y,
1361 ),
1362 )
1363 }),
1364 axes.vertical.then(|| {
1365 Bounds::from_corners(
1366 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1367 text_bounds.bottom_right(),
1368 )
1369 }),
1370 );
1371
1372 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1373 let total_text_units = axis_pair(
1374 Some(scroll_range_size.width / letter_size.width),
1375 Some(scroll_range_size.height / letter_size.height),
1376 );
1377
1378 let thumb_size = axis_pair(
1379 total_text_units
1380 .horizontal
1381 .zip(track_bounds.horizontal)
1382 .and_then(|(total_text_units_x, track_bounds_x)| {
1383 if text_units_per_page.horizontal >= total_text_units_x {
1384 return None;
1385 }
1386 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1387 return Some(track_bounds_x.size.width);
1388 }
1389 let thumb_size = track_bounds_x.size.width
1390 * (text_units_per_page.horizontal / total_text_units_x);
1391 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1392 }),
1393 total_text_units.vertical.zip(track_bounds.vertical).map(
1394 |(total_text_units_y, track_bounds_y)| {
1395 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1396 return track_bounds_y.size.height;
1397 }
1398 let thumb_size = track_bounds_y.size.height
1399 * (text_units_per_page.vertical / total_text_units_y);
1400 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1401 },
1402 ),
1403 );
1404
1405 // NOTE: Space not taken by track bounds divided by text units not on screen
1406 let text_unit_size = axis_pair(
1407 thumb_size
1408 .horizontal
1409 .zip(track_bounds.horizontal)
1410 .zip(total_text_units.horizontal)
1411 .map(|((thumb_size, track_bounds), total_text_units)| {
1412 (track_bounds.size.width - thumb_size)
1413 / (total_text_units - text_units_per_page.horizontal).max(0.)
1414 }),
1415 thumb_size
1416 .vertical
1417 .zip(track_bounds.vertical)
1418 .zip(total_text_units.vertical)
1419 .map(|((thumb_size, track_bounds), total_text_units)| {
1420 (track_bounds.size.height - thumb_size)
1421 / (total_text_units - text_units_per_page.vertical).max(0.)
1422 }),
1423 );
1424
1425 let horizontal_scrollbar = track_bounds
1426 .horizontal
1427 .zip(visible_range.horizontal)
1428 .zip(text_unit_size.horizontal)
1429 .zip(thumb_size.horizontal)
1430 .map(
1431 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1432 hitbox: window.insert_hitbox(track_bounds, false),
1433 visible_range,
1434 text_unit_size,
1435 visible: show_scrollbars,
1436 thumb_size,
1437 axis: Axis::Horizontal,
1438 },
1439 );
1440
1441 let vertical_scrollbar = track_bounds
1442 .vertical
1443 .zip(visible_range.vertical)
1444 .zip(text_unit_size.vertical)
1445 .zip(thumb_size.vertical)
1446 .map(
1447 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1448 hitbox: window.insert_hitbox(track_bounds, false),
1449 visible_range,
1450 text_unit_size,
1451 visible: show_scrollbars,
1452 thumb_size,
1453 axis: Axis::Vertical,
1454 },
1455 );
1456
1457 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1458 }
1459
1460 #[allow(clippy::too_many_arguments)]
1461 fn prepaint_crease_toggles(
1462 &self,
1463 crease_toggles: &mut [Option<AnyElement>],
1464 line_height: Pixels,
1465 gutter_dimensions: &GutterDimensions,
1466 gutter_settings: crate::editor_settings::Gutter,
1467 scroll_pixel_position: gpui::Point<Pixels>,
1468 gutter_hitbox: &Hitbox,
1469 window: &mut Window,
1470 cx: &mut App,
1471 ) {
1472 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1473 if let Some(crease_toggle) = crease_toggle {
1474 debug_assert!(gutter_settings.folds);
1475 let available_space = size(
1476 AvailableSpace::MinContent,
1477 AvailableSpace::Definite(line_height * 0.55),
1478 );
1479 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1480
1481 let position = point(
1482 gutter_dimensions.width - gutter_dimensions.right_padding,
1483 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1484 );
1485 let centering_offset = point(
1486 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1487 (line_height - crease_toggle_size.height) / 2.,
1488 );
1489 let origin = gutter_hitbox.origin + position + centering_offset;
1490 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1491 }
1492 }
1493 }
1494
1495 #[allow(clippy::too_many_arguments)]
1496 fn prepaint_crease_trailers(
1497 &self,
1498 trailers: Vec<Option<AnyElement>>,
1499 lines: &[LineWithInvisibles],
1500 line_height: Pixels,
1501 content_origin: gpui::Point<Pixels>,
1502 scroll_pixel_position: gpui::Point<Pixels>,
1503 em_width: Pixels,
1504 window: &mut Window,
1505 cx: &mut App,
1506 ) -> Vec<Option<CreaseTrailerLayout>> {
1507 trailers
1508 .into_iter()
1509 .enumerate()
1510 .map(|(ix, element)| {
1511 let mut element = element?;
1512 let available_space = size(
1513 AvailableSpace::MinContent,
1514 AvailableSpace::Definite(line_height),
1515 );
1516 let size = element.layout_as_root(available_space, window, cx);
1517
1518 let line = &lines[ix];
1519 let padding = if line.width == Pixels::ZERO {
1520 Pixels::ZERO
1521 } else {
1522 4. * em_width
1523 };
1524 let position = point(
1525 scroll_pixel_position.x + line.width + padding,
1526 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1527 );
1528 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1529 let origin = content_origin + position + centering_offset;
1530 element.prepaint_as_root(origin, available_space, window, cx);
1531 Some(CreaseTrailerLayout {
1532 element,
1533 bounds: Bounds::new(origin, size),
1534 })
1535 })
1536 .collect()
1537 }
1538
1539 // Folds contained in a hunk are ignored apart from shrinking visual size
1540 // If a fold contains any hunks then that fold line is marked as modified
1541 fn layout_gutter_diff_hunks(
1542 &self,
1543 line_height: Pixels,
1544 gutter_hitbox: &Hitbox,
1545 display_rows: Range<DisplayRow>,
1546 snapshot: &EditorSnapshot,
1547 window: &mut Window,
1548 cx: &mut App,
1549 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1550 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1551 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1552
1553 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1554 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1555
1556 for hunk in snapshot
1557 .buffer_snapshot
1558 .diff_hunks_in_range(buffer_start..buffer_end)
1559 {
1560 if folded_buffers.contains(&hunk.buffer_id) {
1561 continue;
1562 }
1563
1564 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1565 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1566
1567 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1568 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1569
1570 let display_hunk = if hunk_display_start.column() != 0 {
1571 DisplayDiffHunk::Folded {
1572 display_row: hunk_display_start.row(),
1573 }
1574 } else {
1575 let mut end_row = hunk_display_end.row();
1576 if hunk_display_end.column() > 0 {
1577 end_row.0 += 1;
1578 }
1579 DisplayDiffHunk::Unfolded {
1580 status: hunk.status(),
1581 diff_base_byte_range: hunk.diff_base_byte_range,
1582 display_row_range: hunk_display_start.row()..end_row,
1583 multi_buffer_range: Anchor::range_in_buffer(
1584 hunk.excerpt_id,
1585 hunk.buffer_id,
1586 hunk.buffer_range,
1587 ),
1588 }
1589 };
1590
1591 display_hunks.push((display_hunk, None));
1592 }
1593
1594 let git_gutter_setting = ProjectSettings::get_global(cx)
1595 .git
1596 .git_gutter
1597 .unwrap_or_default();
1598 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1599 for (hunk, hitbox) in &mut display_hunks {
1600 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1601 let hunk_bounds =
1602 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1603 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1604 }
1605 }
1606 }
1607
1608 display_hunks
1609 }
1610
1611 #[allow(clippy::too_many_arguments)]
1612 fn layout_inline_blame(
1613 &self,
1614 display_row: DisplayRow,
1615 row_info: &RowInfo,
1616 line_layout: &LineWithInvisibles,
1617 crease_trailer: Option<&CreaseTrailerLayout>,
1618 em_width: Pixels,
1619 content_origin: gpui::Point<Pixels>,
1620 scroll_pixel_position: gpui::Point<Pixels>,
1621 line_height: Pixels,
1622 window: &mut Window,
1623 cx: &mut App,
1624 ) -> Option<AnyElement> {
1625 if !self
1626 .editor
1627 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1628 {
1629 return None;
1630 }
1631
1632 let editor = self.editor.read(cx);
1633 let blame = editor.blame.clone()?;
1634 let padding = {
1635 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1636 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1637
1638 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1639
1640 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1641 match &inline_completion.completion {
1642 InlineCompletion::Edit {
1643 display_mode: EditDisplayMode::TabAccept,
1644 ..
1645 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1646 _ => {}
1647 }
1648 }
1649
1650 padding * em_width
1651 };
1652
1653 let blame_entry = blame
1654 .update(cx, |blame, cx| {
1655 blame.blame_for_rows(&[*row_info], cx).next()
1656 })
1657 .flatten()?;
1658
1659 let mut element =
1660 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1661
1662 let start_y = content_origin.y
1663 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1664
1665 let start_x = {
1666 let line_end = if let Some(crease_trailer) = crease_trailer {
1667 crease_trailer.bounds.right()
1668 } else {
1669 content_origin.x - scroll_pixel_position.x + line_layout.width
1670 };
1671
1672 let padded_line_end = line_end + padding;
1673
1674 let min_column_in_pixels = ProjectSettings::get_global(cx)
1675 .git
1676 .inline_blame
1677 .and_then(|settings| settings.min_column)
1678 .map(|col| self.column_pixels(col as usize, window, cx))
1679 .unwrap_or(px(0.));
1680 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1681
1682 cmp::max(padded_line_end, min_start)
1683 };
1684
1685 let absolute_offset = point(start_x, start_y);
1686 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1687
1688 Some(element)
1689 }
1690
1691 #[allow(clippy::too_many_arguments)]
1692 fn layout_blame_entries(
1693 &self,
1694 buffer_rows: &[RowInfo],
1695 em_width: Pixels,
1696 scroll_position: gpui::Point<f32>,
1697 line_height: Pixels,
1698 gutter_hitbox: &Hitbox,
1699 max_width: Option<Pixels>,
1700 window: &mut Window,
1701 cx: &mut App,
1702 ) -> Option<Vec<AnyElement>> {
1703 if !self
1704 .editor
1705 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1706 {
1707 return None;
1708 }
1709
1710 let blame = self.editor.read(cx).blame.clone()?;
1711 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1712 blame.blame_for_rows(buffer_rows, cx).collect()
1713 });
1714
1715 let width = if let Some(max_width) = max_width {
1716 AvailableSpace::Definite(max_width)
1717 } else {
1718 AvailableSpace::MaxContent
1719 };
1720 let scroll_top = scroll_position.y * line_height;
1721 let start_x = em_width;
1722
1723 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1724
1725 let shaped_lines = blamed_rows
1726 .into_iter()
1727 .enumerate()
1728 .flat_map(|(ix, blame_entry)| {
1729 if let Some(blame_entry) = blame_entry {
1730 let mut element = render_blame_entry(
1731 ix,
1732 &blame,
1733 blame_entry,
1734 &self.style,
1735 &mut last_used_color,
1736 self.editor.clone(),
1737 cx,
1738 );
1739
1740 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1741 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1742
1743 element.prepaint_as_root(
1744 absolute_offset,
1745 size(width, AvailableSpace::MinContent),
1746 window,
1747 cx,
1748 );
1749
1750 Some(element)
1751 } else {
1752 None
1753 }
1754 })
1755 .collect();
1756
1757 Some(shaped_lines)
1758 }
1759
1760 #[allow(clippy::too_many_arguments)]
1761 fn layout_indent_guides(
1762 &self,
1763 content_origin: gpui::Point<Pixels>,
1764 text_origin: gpui::Point<Pixels>,
1765 visible_buffer_range: Range<MultiBufferRow>,
1766 scroll_pixel_position: gpui::Point<Pixels>,
1767 line_height: Pixels,
1768 snapshot: &DisplaySnapshot,
1769 window: &mut Window,
1770 cx: &mut App,
1771 ) -> Option<Vec<IndentGuideLayout>> {
1772 let indent_guides = self.editor.update(cx, |editor, cx| {
1773 editor.indent_guides(visible_buffer_range, snapshot, cx)
1774 })?;
1775
1776 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1777 editor
1778 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1779 .unwrap_or_default()
1780 });
1781
1782 Some(
1783 indent_guides
1784 .into_iter()
1785 .enumerate()
1786 .filter_map(|(i, indent_guide)| {
1787 let single_indent_width =
1788 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1789 let total_width = single_indent_width * indent_guide.depth as f32;
1790 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1791 if start_x >= text_origin.x {
1792 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1793 indent_guide.start_row..indent_guide.end_row,
1794 line_height,
1795 snapshot,
1796 );
1797
1798 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1799
1800 Some(IndentGuideLayout {
1801 origin: point(start_x, start_y),
1802 length,
1803 single_indent_width,
1804 depth: indent_guide.depth,
1805 active: active_indent_guide_indices.contains(&i),
1806 settings: indent_guide.settings,
1807 })
1808 } else {
1809 None
1810 }
1811 })
1812 .collect(),
1813 )
1814 }
1815
1816 fn calculate_indent_guide_bounds(
1817 row_range: Range<MultiBufferRow>,
1818 line_height: Pixels,
1819 snapshot: &DisplaySnapshot,
1820 ) -> (gpui::Pixels, gpui::Pixels) {
1821 let start_point = Point::new(row_range.start.0, 0);
1822 let end_point = Point::new(row_range.end.0, 0);
1823
1824 let row_range = start_point.to_display_point(snapshot).row()
1825 ..end_point.to_display_point(snapshot).row();
1826
1827 let mut prev_line = start_point;
1828 prev_line.row = prev_line.row.saturating_sub(1);
1829 let prev_line = prev_line.to_display_point(snapshot).row();
1830
1831 let mut cons_line = end_point;
1832 cons_line.row += 1;
1833 let cons_line = cons_line.to_display_point(snapshot).row();
1834
1835 let mut offset_y = row_range.start.0 as f32 * line_height;
1836 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1837
1838 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1839 if row_range.end == cons_line {
1840 length += line_height;
1841 }
1842
1843 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1844 // we want to extend the indent guide to the start of the block.
1845 let mut block_height = 0;
1846 let mut block_offset = 0;
1847 let mut found_excerpt_header = false;
1848 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1849 if matches!(block, Block::ExcerptBoundary { .. }) {
1850 found_excerpt_header = true;
1851 break;
1852 }
1853 block_offset += block.height();
1854 block_height += block.height();
1855 }
1856 if !found_excerpt_header {
1857 offset_y -= block_offset as f32 * line_height;
1858 length += block_height as f32 * line_height;
1859 }
1860
1861 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1862 // we want to ensure that the indent guide stops before the excerpt header.
1863 let mut block_height = 0;
1864 let mut found_excerpt_header = false;
1865 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1866 if matches!(block, Block::ExcerptBoundary { .. }) {
1867 found_excerpt_header = true;
1868 }
1869 block_height += block.height();
1870 }
1871 if found_excerpt_header {
1872 length -= block_height as f32 * line_height;
1873 }
1874
1875 (offset_y, length)
1876 }
1877
1878 #[allow(clippy::too_many_arguments)]
1879 fn layout_run_indicators(
1880 &self,
1881 line_height: Pixels,
1882 range: Range<DisplayRow>,
1883 scroll_pixel_position: gpui::Point<Pixels>,
1884 gutter_dimensions: &GutterDimensions,
1885 gutter_hitbox: &Hitbox,
1886 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1887 snapshot: &EditorSnapshot,
1888 window: &mut Window,
1889 cx: &mut App,
1890 ) -> Vec<AnyElement> {
1891 self.editor.update(cx, |editor, cx| {
1892 let active_task_indicator_row =
1893 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1894 deployed_from_indicator,
1895 actions,
1896 ..
1897 })) = editor.context_menu.borrow().as_ref()
1898 {
1899 actions
1900 .tasks
1901 .as_ref()
1902 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1903 .or(*deployed_from_indicator)
1904 } else {
1905 None
1906 };
1907
1908 let offset_range_start = snapshot
1909 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1910 .to_offset(&snapshot.buffer_snapshot);
1911 let offset_range_end = snapshot
1912 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1913 .to_offset(&snapshot.buffer_snapshot);
1914
1915 editor
1916 .tasks
1917 .iter()
1918 .filter_map(|(_, tasks)| {
1919 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1920 return None;
1921 }
1922 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1923 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1924 let buffer_folded = snapshot
1925 .buffer_snapshot
1926 .buffer_line_for_row(multibuffer_row)
1927 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1928 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1929 .unwrap_or(false);
1930 if buffer_folded {
1931 return None;
1932 }
1933
1934 if snapshot.is_line_folded(multibuffer_row) {
1935 // Skip folded indicators, unless it's the starting line of a fold.
1936 if multibuffer_row
1937 .0
1938 .checked_sub(1)
1939 .map_or(false, |previous_row| {
1940 snapshot.is_line_folded(MultiBufferRow(previous_row))
1941 })
1942 {
1943 return None;
1944 }
1945 }
1946 let display_row = multibuffer_point.to_display_point(snapshot).row();
1947 let button = editor.render_run_indicator(
1948 &self.style,
1949 Some(display_row) == active_task_indicator_row,
1950 display_row,
1951 cx,
1952 );
1953
1954 let button = prepaint_gutter_button(
1955 button,
1956 display_row,
1957 line_height,
1958 gutter_dimensions,
1959 scroll_pixel_position,
1960 gutter_hitbox,
1961 rows_with_hunk_bounds,
1962 window,
1963 cx,
1964 );
1965 Some(button)
1966 })
1967 .collect_vec()
1968 })
1969 }
1970
1971 #[allow(clippy::too_many_arguments)]
1972 fn layout_code_actions_indicator(
1973 &self,
1974 line_height: Pixels,
1975 newest_selection_head: DisplayPoint,
1976 scroll_pixel_position: gpui::Point<Pixels>,
1977 gutter_dimensions: &GutterDimensions,
1978 gutter_hitbox: &Hitbox,
1979 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1980 window: &mut Window,
1981 cx: &mut App,
1982 ) -> Option<AnyElement> {
1983 let mut active = false;
1984 let mut button = None;
1985 let row = newest_selection_head.row();
1986 self.editor.update(cx, |editor, cx| {
1987 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1988 deployed_from_indicator,
1989 ..
1990 })) = editor.context_menu.borrow().as_ref()
1991 {
1992 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1993 };
1994 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1995 });
1996
1997 let button = prepaint_gutter_button(
1998 button?,
1999 row,
2000 line_height,
2001 gutter_dimensions,
2002 scroll_pixel_position,
2003 gutter_hitbox,
2004 rows_with_hunk_bounds,
2005 window,
2006 cx,
2007 );
2008
2009 Some(button)
2010 }
2011
2012 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2013 if let Some(index) = participant_index {
2014 cx.theme().players().color_for_participant(index.0)
2015 } else {
2016 cx.theme().players().absent()
2017 }
2018 }
2019
2020 fn calculate_relative_line_numbers(
2021 &self,
2022 snapshot: &EditorSnapshot,
2023 rows: &Range<DisplayRow>,
2024 relative_to: Option<DisplayRow>,
2025 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2026 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2027 let Some(relative_to) = relative_to else {
2028 return relative_rows;
2029 };
2030
2031 let start = rows.start.min(relative_to);
2032 let end = rows.end.max(relative_to);
2033
2034 let buffer_rows = snapshot
2035 .row_infos(start)
2036 .take(1 + end.minus(start) as usize)
2037 .collect::<Vec<_>>();
2038
2039 let head_idx = relative_to.minus(start);
2040 let mut delta = 1;
2041 let mut i = head_idx + 1;
2042 while i < buffer_rows.len() as u32 {
2043 if buffer_rows[i as usize].buffer_row.is_some() {
2044 if rows.contains(&DisplayRow(i + start.0)) {
2045 relative_rows.insert(DisplayRow(i + start.0), delta);
2046 }
2047 delta += 1;
2048 }
2049 i += 1;
2050 }
2051 delta = 1;
2052 i = head_idx.min(buffer_rows.len() as u32 - 1);
2053 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2054 i -= 1;
2055 }
2056
2057 while i > 0 {
2058 i -= 1;
2059 if buffer_rows[i as usize].buffer_row.is_some() {
2060 if rows.contains(&DisplayRow(i + start.0)) {
2061 relative_rows.insert(DisplayRow(i + start.0), delta);
2062 }
2063 delta += 1;
2064 }
2065 }
2066
2067 relative_rows
2068 }
2069
2070 #[allow(clippy::too_many_arguments)]
2071 fn layout_line_numbers(
2072 &self,
2073 gutter_hitbox: Option<&Hitbox>,
2074 gutter_dimensions: GutterDimensions,
2075 line_height: Pixels,
2076 scroll_position: gpui::Point<f32>,
2077 rows: Range<DisplayRow>,
2078 buffer_rows: &[RowInfo],
2079 newest_selection_head: Option<DisplayPoint>,
2080 snapshot: &EditorSnapshot,
2081 window: &mut Window,
2082 cx: &mut App,
2083 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2084 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2085 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2086 });
2087 if !include_line_numbers {
2088 return Arc::default();
2089 }
2090
2091 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2092 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2093 let newest = editor.selections.newest::<Point>(cx);
2094 SelectionLayout::new(
2095 newest,
2096 editor.selections.line_mode,
2097 editor.cursor_shape,
2098 &snapshot.display_snapshot,
2099 true,
2100 true,
2101 None,
2102 )
2103 .head
2104 });
2105 let is_relative = editor.should_use_relative_line_numbers(cx);
2106 (newest_selection_head, is_relative)
2107 });
2108
2109 let relative_to = if is_relative {
2110 Some(newest_selection_head.row())
2111 } else {
2112 None
2113 };
2114 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2115 let mut line_number = String::new();
2116 let line_numbers = buffer_rows
2117 .into_iter()
2118 .enumerate()
2119 .flat_map(|(ix, row_info)| {
2120 let display_row = DisplayRow(rows.start.0 + ix as u32);
2121 line_number.clear();
2122 let non_relative_number = row_info.buffer_row? + 1;
2123 let number = relative_rows
2124 .get(&display_row)
2125 .unwrap_or(&non_relative_number);
2126 write!(&mut line_number, "{number}").unwrap();
2127 if matches!(row_info.diff_status, Some(DiffHunkStatus::Removed(_))) {
2128 return None;
2129 }
2130
2131 let color = cx.theme().colors().editor_line_number;
2132 let shaped_line = self
2133 .shape_line_number(SharedString::from(&line_number), color, window)
2134 .log_err()?;
2135 let scroll_top = scroll_position.y * line_height;
2136 let line_origin = gutter_hitbox.map(|hitbox| {
2137 hitbox.origin
2138 + point(
2139 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2140 ix as f32 * line_height - (scroll_top % line_height),
2141 )
2142 });
2143
2144 #[cfg(not(test))]
2145 let hitbox = line_origin.map(|line_origin| {
2146 window.insert_hitbox(
2147 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2148 false,
2149 )
2150 });
2151 #[cfg(test)]
2152 let hitbox = {
2153 let _ = line_origin;
2154 None
2155 };
2156
2157 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2158 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2159 let line_number = LineNumberLayout {
2160 shaped_line,
2161 hitbox,
2162 display_row,
2163 };
2164 Some((multi_buffer_row, line_number))
2165 })
2166 .collect();
2167 Arc::new(line_numbers)
2168 }
2169
2170 fn layout_crease_toggles(
2171 &self,
2172 rows: Range<DisplayRow>,
2173 row_infos: &[RowInfo],
2174 active_rows: &BTreeMap<DisplayRow, bool>,
2175 snapshot: &EditorSnapshot,
2176 window: &mut Window,
2177 cx: &mut App,
2178 ) -> Vec<Option<AnyElement>> {
2179 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2180 && snapshot.mode == EditorMode::Full
2181 && self.editor.read(cx).is_singleton(cx);
2182 if include_fold_statuses {
2183 row_infos
2184 .into_iter()
2185 .enumerate()
2186 .map(|(ix, info)| {
2187 let row = info.multibuffer_row?;
2188 let display_row = DisplayRow(rows.start.0 + ix as u32);
2189 let active = active_rows.contains_key(&display_row);
2190
2191 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2192 })
2193 .collect()
2194 } else {
2195 Vec::new()
2196 }
2197 }
2198
2199 fn layout_crease_trailers(
2200 &self,
2201 buffer_rows: impl IntoIterator<Item = RowInfo>,
2202 snapshot: &EditorSnapshot,
2203 window: &mut Window,
2204 cx: &mut App,
2205 ) -> Vec<Option<AnyElement>> {
2206 buffer_rows
2207 .into_iter()
2208 .map(|row_info| {
2209 if let Some(row) = row_info.multibuffer_row {
2210 snapshot.render_crease_trailer(row, window, cx)
2211 } else {
2212 None
2213 }
2214 })
2215 .collect()
2216 }
2217
2218 fn layout_lines(
2219 rows: Range<DisplayRow>,
2220 snapshot: &EditorSnapshot,
2221 style: &EditorStyle,
2222 editor_width: Pixels,
2223 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2224 window: &mut Window,
2225 cx: &mut App,
2226 ) -> Vec<LineWithInvisibles> {
2227 if rows.start >= rows.end {
2228 return Vec::new();
2229 }
2230
2231 // Show the placeholder when the editor is empty
2232 if snapshot.is_empty() {
2233 let font_size = style.text.font_size.to_pixels(window.rem_size());
2234 let placeholder_color = cx.theme().colors().text_placeholder;
2235 let placeholder_text = snapshot.placeholder_text();
2236
2237 let placeholder_lines = placeholder_text
2238 .as_ref()
2239 .map_or("", AsRef::as_ref)
2240 .split('\n')
2241 .skip(rows.start.0 as usize)
2242 .chain(iter::repeat(""))
2243 .take(rows.len());
2244 placeholder_lines
2245 .filter_map(move |line| {
2246 let run = TextRun {
2247 len: line.len(),
2248 font: style.text.font(),
2249 color: placeholder_color,
2250 background_color: None,
2251 underline: Default::default(),
2252 strikethrough: None,
2253 };
2254 window
2255 .text_system()
2256 .shape_line(line.to_string().into(), font_size, &[run])
2257 .log_err()
2258 })
2259 .map(|line| LineWithInvisibles {
2260 width: line.width,
2261 len: line.len,
2262 fragments: smallvec![LineFragment::Text(line)],
2263 invisibles: Vec::new(),
2264 font_size,
2265 })
2266 .collect()
2267 } else {
2268 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2269 LineWithInvisibles::from_chunks(
2270 chunks,
2271 &style,
2272 MAX_LINE_LEN,
2273 rows.len(),
2274 snapshot.mode,
2275 editor_width,
2276 is_row_soft_wrapped,
2277 window,
2278 cx,
2279 )
2280 }
2281 }
2282
2283 #[allow(clippy::too_many_arguments)]
2284 fn prepaint_lines(
2285 &self,
2286 start_row: DisplayRow,
2287 line_layouts: &mut [LineWithInvisibles],
2288 line_height: Pixels,
2289 scroll_pixel_position: gpui::Point<Pixels>,
2290 content_origin: gpui::Point<Pixels>,
2291 window: &mut Window,
2292 cx: &mut App,
2293 ) -> SmallVec<[AnyElement; 1]> {
2294 let mut line_elements = SmallVec::new();
2295 for (ix, line) in line_layouts.iter_mut().enumerate() {
2296 let row = start_row + DisplayRow(ix as u32);
2297 line.prepaint(
2298 line_height,
2299 scroll_pixel_position,
2300 row,
2301 content_origin,
2302 &mut line_elements,
2303 window,
2304 cx,
2305 );
2306 }
2307 line_elements
2308 }
2309
2310 #[allow(clippy::too_many_arguments)]
2311 fn render_block(
2312 &self,
2313 block: &Block,
2314 available_width: AvailableSpace,
2315 block_id: BlockId,
2316 block_row_start: DisplayRow,
2317 snapshot: &EditorSnapshot,
2318 text_x: Pixels,
2319 rows: &Range<DisplayRow>,
2320 line_layouts: &[LineWithInvisibles],
2321 gutter_dimensions: &GutterDimensions,
2322 line_height: Pixels,
2323 em_width: Pixels,
2324 text_hitbox: &Hitbox,
2325 editor_width: Pixels,
2326 scroll_width: &mut Pixels,
2327 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2328 selections: &[Selection<Point>],
2329 selected_buffer_ids: &Vec<BufferId>,
2330 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2331 sticky_header_excerpt_id: Option<ExcerptId>,
2332 window: &mut Window,
2333 cx: &mut App,
2334 ) -> (AnyElement, Size<Pixels>) {
2335 let mut element = match block {
2336 Block::Custom(block) => {
2337 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2338 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2339 let align_to = block_start.to_display_point(snapshot);
2340 let anchor_x = text_x
2341 + if rows.contains(&align_to.row()) {
2342 line_layouts[align_to.row().minus(rows.start) as usize]
2343 .x_for_index(align_to.column() as usize)
2344 } else {
2345 layout_line(
2346 align_to.row(),
2347 snapshot,
2348 &self.style,
2349 editor_width,
2350 is_row_soft_wrapped,
2351 window,
2352 cx,
2353 )
2354 .x_for_index(align_to.column() as usize)
2355 };
2356
2357 let selected = selections
2358 .binary_search_by(|selection| {
2359 if selection.end <= block_start {
2360 Ordering::Less
2361 } else if selection.start >= block_end {
2362 Ordering::Greater
2363 } else {
2364 Ordering::Equal
2365 }
2366 })
2367 .is_ok();
2368
2369 div()
2370 .size_full()
2371 .child(block.render(&mut BlockContext {
2372 window,
2373 app: cx,
2374 anchor_x,
2375 gutter_dimensions,
2376 line_height,
2377 em_width,
2378 block_id,
2379 selected,
2380 max_width: text_hitbox.size.width.max(*scroll_width),
2381 editor_style: &self.style,
2382 }))
2383 .into_any()
2384 }
2385
2386 Block::FoldedBuffer {
2387 first_excerpt,
2388 prev_excerpt,
2389 show_excerpt_controls,
2390 height,
2391 } => {
2392 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2393 let mut result = v_flex().id(block_id).w_full();
2394
2395 if let Some(prev_excerpt) = prev_excerpt {
2396 if *show_excerpt_controls {
2397 result = result.child(self.render_expand_excerpt_control(
2398 block_id,
2399 ExpandExcerptDirection::Down,
2400 prev_excerpt.id,
2401 gutter_dimensions,
2402 window,
2403 cx,
2404 ));
2405 }
2406 }
2407
2408 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2409 result
2410 .child(self.render_buffer_header(
2411 first_excerpt,
2412 true,
2413 selected,
2414 jump_data,
2415 window,
2416 cx,
2417 ))
2418 .into_any_element()
2419 }
2420
2421 Block::ExcerptBoundary {
2422 prev_excerpt,
2423 next_excerpt,
2424 show_excerpt_controls,
2425 height,
2426 starts_new_buffer,
2427 } => {
2428 let color = cx.theme().colors().clone();
2429 let mut result = v_flex().id(block_id).w_full();
2430
2431 if let Some(prev_excerpt) = prev_excerpt {
2432 if *show_excerpt_controls {
2433 result = result.child(self.render_expand_excerpt_control(
2434 block_id,
2435 ExpandExcerptDirection::Down,
2436 prev_excerpt.id,
2437 gutter_dimensions,
2438 window,
2439 cx,
2440 ));
2441 }
2442 }
2443
2444 if let Some(next_excerpt) = next_excerpt {
2445 let jump_data =
2446 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2447
2448 if *starts_new_buffer {
2449 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2450 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2451
2452 result = result.child(self.render_buffer_header(
2453 next_excerpt,
2454 false,
2455 selected,
2456 jump_data,
2457 window,
2458 cx,
2459 ));
2460 } else {
2461 result = result
2462 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2463 }
2464
2465 if *show_excerpt_controls {
2466 result = result.child(self.render_expand_excerpt_control(
2467 block_id,
2468 ExpandExcerptDirection::Up,
2469 next_excerpt.id,
2470 gutter_dimensions,
2471 window,
2472 cx,
2473 ));
2474 }
2475 } else {
2476 if *show_excerpt_controls {
2477 result = result.child(
2478 h_flex()
2479 .relative()
2480 .child(
2481 div()
2482 .top(px(0.))
2483 .absolute()
2484 .w_full()
2485 .h_px()
2486 .bg(color.border_variant),
2487 )
2488 .child(self.render_expand_excerpt_control(
2489 block_id,
2490 ExpandExcerptDirection::Up,
2491 next_excerpt.id,
2492 gutter_dimensions,
2493 window,
2494 cx,
2495 )),
2496 );
2497 }
2498 };
2499 }
2500
2501 result.into_any()
2502 }
2503 };
2504
2505 // Discover the element's content height, then round up to the nearest multiple of line height.
2506 let preliminary_size = element.layout_as_root(
2507 size(available_width, AvailableSpace::MinContent),
2508 window,
2509 cx,
2510 );
2511 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2512 let final_size = if preliminary_size.height == quantized_height {
2513 preliminary_size
2514 } else {
2515 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2516 };
2517
2518 if let BlockId::Custom(custom_block_id) = block_id {
2519 if block.height() > 0 {
2520 let element_height_in_lines =
2521 ((final_size.height / line_height).ceil() as u32).max(1);
2522 if element_height_in_lines != block.height() {
2523 resized_blocks.insert(custom_block_id, element_height_in_lines);
2524 }
2525 }
2526 }
2527
2528 (element, final_size)
2529 }
2530
2531 fn render_buffer_header(
2532 &self,
2533 for_excerpt: &ExcerptInfo,
2534 is_folded: bool,
2535 is_selected: bool,
2536 jump_data: JumpData,
2537 window: &mut Window,
2538 cx: &mut App,
2539 ) -> Div {
2540 let include_root = self
2541 .editor
2542 .read(cx)
2543 .project
2544 .as_ref()
2545 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2546 .unwrap_or_default();
2547 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2548 let filename = path
2549 .as_ref()
2550 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2551 let parent_path = path.as_ref().and_then(|path| {
2552 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2553 });
2554 let focus_handle = self.editor.focus_handle(cx);
2555 let colors = cx.theme().colors();
2556
2557 div()
2558 .px_2()
2559 .pt_2()
2560 .w_full()
2561 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2562 .child(
2563 h_flex()
2564 .size_full()
2565 .gap_2()
2566 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2567 .pl_0p5()
2568 .pr_5()
2569 .rounded_md()
2570 .shadow_md()
2571 .border_1()
2572 .map(|div| {
2573 let border_color = if is_selected && is_folded {
2574 colors.border_focused
2575 } else {
2576 colors.border
2577 };
2578 div.border_color(border_color)
2579 })
2580 .bg(colors.editor_subheader_background)
2581 .hover(|style| style.bg(colors.element_hover))
2582 .map(|header| {
2583 let editor = self.editor.clone();
2584 let buffer_id = for_excerpt.buffer_id;
2585 let toggle_chevron_icon =
2586 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2587 header.child(
2588 div()
2589 .hover(|style| style.bg(colors.element_selected))
2590 .rounded_sm()
2591 .child(
2592 ButtonLike::new("toggle-buffer-fold")
2593 .style(ui::ButtonStyle::Transparent)
2594 .size(ButtonSize::Large)
2595 .width(px(30.).into())
2596 .children(toggle_chevron_icon)
2597 .tooltip({
2598 let focus_handle = focus_handle.clone();
2599 move |window, cx| {
2600 Tooltip::for_action_in(
2601 "Toggle Excerpt Fold",
2602 &ToggleFold,
2603 &focus_handle,
2604 window,
2605 cx,
2606 )
2607 }
2608 })
2609 .on_click(move |_, _, cx| {
2610 if is_folded {
2611 editor.update(cx, |editor, cx| {
2612 editor.unfold_buffer(buffer_id, cx);
2613 });
2614 } else {
2615 editor.update(cx, |editor, cx| {
2616 editor.fold_buffer(buffer_id, cx);
2617 });
2618 }
2619 }),
2620 ),
2621 )
2622 })
2623 .children(
2624 self.editor
2625 .read(cx)
2626 .addons
2627 .values()
2628 .filter_map(|addon| {
2629 addon.render_buffer_header_controls(for_excerpt, window, cx)
2630 })
2631 .take(1),
2632 )
2633 .child(
2634 h_flex()
2635 .cursor_pointer()
2636 .id("path header block")
2637 .size_full()
2638 .justify_between()
2639 .child(
2640 h_flex()
2641 .gap_2()
2642 .child(
2643 filename
2644 .map(SharedString::from)
2645 .unwrap_or_else(|| "untitled".into()),
2646 )
2647 .when_some(parent_path, |then, path| {
2648 then.child(div().child(path).text_color(colors.text_muted))
2649 }),
2650 )
2651 .when(is_selected, |el| {
2652 el.child(
2653 h_flex()
2654 .id("jump-to-file-button")
2655 .gap_2p5()
2656 .child(Label::new("Jump To File"))
2657 .children(
2658 KeyBinding::for_action_in(
2659 &OpenExcerpts,
2660 &focus_handle,
2661 window,
2662 cx,
2663 )
2664 .map(|binding| binding.into_any_element()),
2665 ),
2666 )
2667 })
2668 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2669 .on_click(window.listener_for(&self.editor, {
2670 move |editor, e: &ClickEvent, window, cx| {
2671 editor.open_excerpts_common(
2672 Some(jump_data.clone()),
2673 e.down.modifiers.secondary(),
2674 window,
2675 cx,
2676 );
2677 }
2678 })),
2679 ),
2680 )
2681 }
2682
2683 fn render_expand_excerpt_control(
2684 &self,
2685 block_id: BlockId,
2686 direction: ExpandExcerptDirection,
2687 excerpt_id: ExcerptId,
2688 gutter_dimensions: &GutterDimensions,
2689 window: &Window,
2690 cx: &mut App,
2691 ) -> impl IntoElement {
2692 let color = cx.theme().colors().clone();
2693 let hover_color = color.border_variant.opacity(0.5);
2694 let focus_handle = self.editor.focus_handle(cx).clone();
2695
2696 let icon_offset =
2697 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2698 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2699 let group_name = if direction == ExpandExcerptDirection::Down {
2700 "expand-down"
2701 } else {
2702 "expand-up"
2703 };
2704
2705 let expand_area = |id: SharedString| {
2706 h_flex()
2707 .id(id)
2708 .w_full()
2709 .cursor_pointer()
2710 .block_mouse_down()
2711 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2712 .hover(|style| style.bg(hover_color))
2713 .tooltip({
2714 let focus_handle = focus_handle.clone();
2715 move |window, cx| {
2716 Tooltip::for_action_in(
2717 "Expand Excerpt",
2718 &ExpandExcerpts { lines: 0 },
2719 &focus_handle,
2720 window,
2721 cx,
2722 )
2723 }
2724 })
2725 };
2726
2727 expand_area(
2728 format!(
2729 "block-{}-{}",
2730 block_id,
2731 if direction == ExpandExcerptDirection::Down {
2732 "down"
2733 } else {
2734 "up"
2735 }
2736 )
2737 .into(),
2738 )
2739 .group(group_name)
2740 .child(
2741 h_flex()
2742 .w(icon_offset)
2743 .h(header_height)
2744 .flex_none()
2745 .justify_end()
2746 .child(
2747 ButtonLike::new("expand-icon")
2748 .style(ButtonStyle::Transparent)
2749 .child(
2750 svg()
2751 .path(if direction == ExpandExcerptDirection::Down {
2752 IconName::ArrowDownFromLine.path()
2753 } else {
2754 IconName::ArrowUpFromLine.path()
2755 })
2756 .size(IconSize::XSmall.rems())
2757 .text_color(cx.theme().colors().editor_line_number)
2758 .group_hover(group_name, |style| {
2759 style.text_color(cx.theme().colors().editor_active_line_number)
2760 }),
2761 ),
2762 ),
2763 )
2764 .on_click(window.listener_for(&self.editor, {
2765 move |editor, _, _, cx| {
2766 editor.expand_excerpt(excerpt_id, direction, cx);
2767 cx.stop_propagation();
2768 }
2769 }))
2770 }
2771
2772 #[allow(clippy::too_many_arguments)]
2773 fn render_blocks(
2774 &self,
2775 rows: Range<DisplayRow>,
2776 snapshot: &EditorSnapshot,
2777 hitbox: &Hitbox,
2778 text_hitbox: &Hitbox,
2779 editor_width: Pixels,
2780 scroll_width: &mut Pixels,
2781 gutter_dimensions: &GutterDimensions,
2782 em_width: Pixels,
2783 text_x: Pixels,
2784 line_height: Pixels,
2785 line_layouts: &[LineWithInvisibles],
2786 selections: &[Selection<Point>],
2787 selected_buffer_ids: &Vec<BufferId>,
2788 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2789 sticky_header_excerpt_id: Option<ExcerptId>,
2790 window: &mut Window,
2791 cx: &mut App,
2792 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2793 let (fixed_blocks, non_fixed_blocks) = snapshot
2794 .blocks_in_range(rows.clone())
2795 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2796
2797 let mut focused_block = self
2798 .editor
2799 .update(cx, |editor, _| editor.take_focused_block());
2800 let mut fixed_block_max_width = Pixels::ZERO;
2801 let mut blocks = Vec::new();
2802 let mut resized_blocks = HashMap::default();
2803
2804 for (row, block) in fixed_blocks {
2805 let block_id = block.id();
2806
2807 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2808 focused_block = None;
2809 }
2810
2811 let (element, element_size) = self.render_block(
2812 block,
2813 AvailableSpace::MinContent,
2814 block_id,
2815 row,
2816 snapshot,
2817 text_x,
2818 &rows,
2819 line_layouts,
2820 gutter_dimensions,
2821 line_height,
2822 em_width,
2823 text_hitbox,
2824 editor_width,
2825 scroll_width,
2826 &mut resized_blocks,
2827 selections,
2828 selected_buffer_ids,
2829 is_row_soft_wrapped,
2830 sticky_header_excerpt_id,
2831 window,
2832 cx,
2833 );
2834 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2835 blocks.push(BlockLayout {
2836 id: block_id,
2837 row: Some(row),
2838 element,
2839 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2840 style: BlockStyle::Fixed,
2841 });
2842 }
2843
2844 for (row, block) in non_fixed_blocks {
2845 let style = block.style();
2846 let width = match style {
2847 BlockStyle::Sticky => hitbox.size.width,
2848 BlockStyle::Flex => hitbox
2849 .size
2850 .width
2851 .max(fixed_block_max_width)
2852 .max(gutter_dimensions.width + *scroll_width),
2853 BlockStyle::Fixed => unreachable!(),
2854 };
2855 let block_id = block.id();
2856
2857 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2858 focused_block = None;
2859 }
2860
2861 let (element, element_size) = self.render_block(
2862 block,
2863 width.into(),
2864 block_id,
2865 row,
2866 snapshot,
2867 text_x,
2868 &rows,
2869 line_layouts,
2870 gutter_dimensions,
2871 line_height,
2872 em_width,
2873 text_hitbox,
2874 editor_width,
2875 scroll_width,
2876 &mut resized_blocks,
2877 selections,
2878 selected_buffer_ids,
2879 is_row_soft_wrapped,
2880 sticky_header_excerpt_id,
2881 window,
2882 cx,
2883 );
2884
2885 blocks.push(BlockLayout {
2886 id: block_id,
2887 row: Some(row),
2888 element,
2889 available_space: size(width.into(), element_size.height.into()),
2890 style,
2891 });
2892 }
2893
2894 if let Some(focused_block) = focused_block {
2895 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2896 if focus_handle.is_focused(window) {
2897 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2898 let style = block.style();
2899 let width = match style {
2900 BlockStyle::Fixed => AvailableSpace::MinContent,
2901 BlockStyle::Flex => AvailableSpace::Definite(
2902 hitbox
2903 .size
2904 .width
2905 .max(fixed_block_max_width)
2906 .max(gutter_dimensions.width + *scroll_width),
2907 ),
2908 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2909 };
2910
2911 let (element, element_size) = self.render_block(
2912 &block,
2913 width,
2914 focused_block.id,
2915 rows.end,
2916 snapshot,
2917 text_x,
2918 &rows,
2919 line_layouts,
2920 gutter_dimensions,
2921 line_height,
2922 em_width,
2923 text_hitbox,
2924 editor_width,
2925 scroll_width,
2926 &mut resized_blocks,
2927 selections,
2928 selected_buffer_ids,
2929 is_row_soft_wrapped,
2930 sticky_header_excerpt_id,
2931 window,
2932 cx,
2933 );
2934
2935 blocks.push(BlockLayout {
2936 id: block.id(),
2937 row: None,
2938 element,
2939 available_space: size(width, element_size.height.into()),
2940 style,
2941 });
2942 }
2943 }
2944 }
2945 }
2946
2947 if resized_blocks.is_empty() {
2948 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2949 Ok(blocks)
2950 } else {
2951 Err(resized_blocks)
2952 }
2953 }
2954
2955 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2956 /// a restart of rendering for the editor based on the new sizes.
2957 #[allow(clippy::too_many_arguments)]
2958 fn layout_blocks(
2959 &self,
2960 blocks: &mut Vec<BlockLayout>,
2961 block_starts: &mut HashSet<DisplayRow>,
2962 hitbox: &Hitbox,
2963 line_height: Pixels,
2964 scroll_pixel_position: gpui::Point<Pixels>,
2965 window: &mut Window,
2966 cx: &mut App,
2967 ) {
2968 for block in blocks {
2969 let mut origin = if let Some(row) = block.row {
2970 block_starts.insert(row);
2971 hitbox.origin
2972 + point(
2973 Pixels::ZERO,
2974 row.as_f32() * line_height - scroll_pixel_position.y,
2975 )
2976 } else {
2977 // Position the block outside the visible area
2978 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2979 };
2980
2981 if !matches!(block.style, BlockStyle::Sticky) {
2982 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2983 }
2984
2985 let focus_handle =
2986 block
2987 .element
2988 .prepaint_as_root(origin, block.available_space, window, cx);
2989
2990 if let Some(focus_handle) = focus_handle {
2991 self.editor.update(cx, |editor, _cx| {
2992 editor.set_focused_block(FocusedBlock {
2993 id: block.id,
2994 focus_handle: focus_handle.downgrade(),
2995 });
2996 });
2997 }
2998 }
2999 }
3000
3001 #[allow(clippy::too_many_arguments)]
3002 fn layout_sticky_buffer_header(
3003 &self,
3004 StickyHeaderExcerpt {
3005 excerpt,
3006 next_excerpt_controls_present,
3007 next_buffer_row,
3008 }: StickyHeaderExcerpt<'_>,
3009 scroll_position: f32,
3010 line_height: Pixels,
3011 snapshot: &EditorSnapshot,
3012 hitbox: &Hitbox,
3013 selected_buffer_ids: &Vec<BufferId>,
3014 window: &mut Window,
3015 cx: &mut App,
3016 ) -> AnyElement {
3017 let jump_data = header_jump_data(
3018 snapshot,
3019 DisplayRow(scroll_position as u32),
3020 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3021 excerpt,
3022 );
3023
3024 let editor_bg_color = cx.theme().colors().editor_background;
3025
3026 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3027
3028 let mut header = v_flex()
3029 .relative()
3030 .child(
3031 div()
3032 .w(hitbox.bounds.size.width)
3033 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3034 .bg(linear_gradient(
3035 0.,
3036 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3037 linear_color_stop(editor_bg_color, 0.6),
3038 ))
3039 .absolute()
3040 .top_0(),
3041 )
3042 .child(
3043 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3044 .into_any_element(),
3045 )
3046 .into_any_element();
3047
3048 let mut origin = hitbox.origin;
3049
3050 if let Some(next_buffer_row) = next_buffer_row {
3051 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3052
3053 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3054
3055 if next_excerpt_controls_present {
3056 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3057 }
3058
3059 let offset = scroll_position - max_row as f32;
3060
3061 if offset > 0.0 {
3062 origin.y -= Pixels(offset) * line_height;
3063 }
3064 }
3065
3066 let size = size(
3067 AvailableSpace::Definite(hitbox.size.width),
3068 AvailableSpace::MinContent,
3069 );
3070
3071 header.prepaint_as_root(origin, size, window, cx);
3072
3073 header
3074 }
3075
3076 #[allow(clippy::too_many_arguments)]
3077 fn layout_cursor_popovers(
3078 &self,
3079 line_height: Pixels,
3080 text_hitbox: &Hitbox,
3081 content_origin: gpui::Point<Pixels>,
3082 start_row: DisplayRow,
3083 scroll_pixel_position: gpui::Point<Pixels>,
3084 line_layouts: &[LineWithInvisibles],
3085 cursor: DisplayPoint,
3086 cursor_point: Point,
3087 style: &EditorStyle,
3088 window: &mut Window,
3089 cx: &mut App,
3090 ) {
3091 let mut min_menu_height = Pixels::ZERO;
3092 let mut max_menu_height = Pixels::ZERO;
3093 let mut height_above_menu = Pixels::ZERO;
3094 let height_below_menu = Pixels::ZERO;
3095 let mut edit_prediction_popover_visible = false;
3096 let mut context_menu_visible = false;
3097
3098 {
3099 let editor = self.editor.read(cx);
3100 if editor
3101 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3102 {
3103 height_above_menu +=
3104 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3105 edit_prediction_popover_visible = true;
3106 }
3107
3108 if editor.context_menu_visible() {
3109 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3110 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3111 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3112 context_menu_visible = true;
3113 }
3114 }
3115 }
3116
3117 let visible = edit_prediction_popover_visible || context_menu_visible;
3118 if !visible {
3119 return;
3120 }
3121
3122 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3123 let target_position = content_origin
3124 + gpui::Point {
3125 x: cmp::max(
3126 px(0.),
3127 cursor_row_layout.x_for_index(cursor.column() as usize)
3128 - scroll_pixel_position.x,
3129 ),
3130 y: cmp::max(
3131 px(0.),
3132 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3133 ),
3134 };
3135
3136 let viewport_bounds =
3137 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3138 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3139 ..Default::default()
3140 });
3141
3142 let min_height = height_above_menu + min_menu_height + height_below_menu;
3143 let max_height = height_above_menu + max_menu_height + height_below_menu;
3144 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3145 target_position,
3146 line_height,
3147 min_height,
3148 max_height,
3149 text_hitbox,
3150 viewport_bounds,
3151 window,
3152 cx,
3153 |height, max_width_for_stable_x, y_flipped, window, cx| {
3154 // First layout the menu to get its size - others can be at least this wide.
3155 let context_menu = if context_menu_visible {
3156 let menu_height = if y_flipped {
3157 height - height_below_menu
3158 } else {
3159 height - height_above_menu
3160 };
3161 let mut element = self
3162 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3163 .expect("Visible context menu should always render.");
3164 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3165 Some((CursorPopoverType::CodeContextMenu, element, size))
3166 } else {
3167 None
3168 };
3169 let min_width = context_menu
3170 .as_ref()
3171 .map_or(px(0.), |(_, _, size)| size.width);
3172 let max_width = max_width_for_stable_x.max(
3173 context_menu
3174 .as_ref()
3175 .map_or(px(0.), |(_, _, size)| size.width),
3176 );
3177
3178 let edit_prediction = if edit_prediction_popover_visible {
3179 self.editor.update(cx, move |editor, cx| {
3180 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3181 let mut element = editor.render_edit_prediction_cursor_popover(
3182 min_width,
3183 max_width,
3184 cursor_point,
3185 style,
3186 accept_binding.keystroke(),
3187 window,
3188 cx,
3189 )?;
3190 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3191 Some((CursorPopoverType::EditPrediction, element, size))
3192 })
3193 } else {
3194 None
3195 };
3196 vec![edit_prediction, context_menu]
3197 .into_iter()
3198 .flatten()
3199 .collect::<Vec<_>>()
3200 },
3201 ) else {
3202 return;
3203 };
3204
3205 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3206 .iter()
3207 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3208 else {
3209 return;
3210 };
3211 let last_ix = laid_out_popovers.len() - 1;
3212 let menu_is_last = menu_ix == last_ix;
3213 let first_popover_bounds = laid_out_popovers[0].1;
3214 let last_popover_bounds = laid_out_popovers[last_ix].1;
3215
3216 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3217 // right, and otherwise it goes below or to the right.
3218 let mut target_bounds = Bounds::from_corners(
3219 first_popover_bounds.origin,
3220 last_popover_bounds.bottom_right(),
3221 );
3222 target_bounds.size.width = menu_bounds.size.width;
3223
3224 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3225 // based on this is preferred for layout stability.
3226 let mut max_target_bounds = target_bounds;
3227 max_target_bounds.size.height = max_height;
3228 if y_flipped {
3229 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3230 }
3231
3232 // Add spacing around `target_bounds` and `max_target_bounds`.
3233 let mut extend_amount = Edges::all(MENU_GAP);
3234 if y_flipped {
3235 extend_amount.bottom = line_height;
3236 } else {
3237 extend_amount.top = line_height;
3238 }
3239 let target_bounds = target_bounds.extend(extend_amount);
3240 let max_target_bounds = max_target_bounds.extend(extend_amount);
3241
3242 let must_place_above_or_below =
3243 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3244 laid_out_popovers[menu_ix + 1..]
3245 .iter()
3246 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3247 } else {
3248 false
3249 };
3250
3251 self.layout_context_menu_aside(
3252 y_flipped,
3253 *menu_bounds,
3254 target_bounds,
3255 max_target_bounds,
3256 max_menu_height,
3257 must_place_above_or_below,
3258 text_hitbox,
3259 viewport_bounds,
3260 window,
3261 cx,
3262 );
3263 }
3264
3265 #[allow(clippy::too_many_arguments)]
3266 fn layout_gutter_menu(
3267 &self,
3268 line_height: Pixels,
3269 text_hitbox: &Hitbox,
3270 content_origin: gpui::Point<Pixels>,
3271 scroll_pixel_position: gpui::Point<Pixels>,
3272 gutter_overshoot: Pixels,
3273 window: &mut Window,
3274 cx: &mut App,
3275 ) {
3276 let editor = self.editor.read(cx);
3277 if !editor.context_menu_visible() {
3278 return;
3279 }
3280 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3281 editor.context_menu_origin()
3282 else {
3283 return;
3284 };
3285 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3286 // indicator than just a plain first column of the text field.
3287 let target_position = content_origin
3288 + gpui::Point {
3289 x: -gutter_overshoot,
3290 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3291 };
3292 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3293 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3294 let viewport_bounds =
3295 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3296 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3297 ..Default::default()
3298 });
3299 self.layout_popovers_above_or_below_line(
3300 target_position,
3301 line_height,
3302 min_height,
3303 max_height,
3304 text_hitbox,
3305 viewport_bounds,
3306 window,
3307 cx,
3308 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3309 let mut element = self
3310 .render_context_menu(line_height, height, y_flipped, window, cx)
3311 .expect("Visible context menu should always render.");
3312 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3313 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3314 },
3315 );
3316 }
3317
3318 #[allow(clippy::too_many_arguments)]
3319 fn layout_popovers_above_or_below_line(
3320 &self,
3321 target_position: gpui::Point<Pixels>,
3322 line_height: Pixels,
3323 min_height: Pixels,
3324 max_height: Pixels,
3325 text_hitbox: &Hitbox,
3326 viewport_bounds: Bounds<Pixels>,
3327 window: &mut Window,
3328 cx: &mut App,
3329 make_sized_popovers: impl FnOnce(
3330 Pixels,
3331 Pixels,
3332 bool,
3333 &mut Window,
3334 &mut App,
3335 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3336 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3337 let text_style = TextStyleRefinement {
3338 line_height: Some(DefiniteLength::Fraction(
3339 BufferLineHeight::Comfortable.value(),
3340 )),
3341 ..Default::default()
3342 };
3343 window.with_text_style(Some(text_style), |window| {
3344 // If the max height won't fit below and there is more space above, put it above the line.
3345 let bottom_y_when_flipped = target_position.y - line_height;
3346 let available_above = bottom_y_when_flipped - text_hitbox.top();
3347 let available_below = text_hitbox.bottom() - target_position.y;
3348 let y_overflows_below = max_height > available_below;
3349 let mut y_flipped = y_overflows_below && available_above > available_below;
3350 let mut height = cmp::min(
3351 max_height,
3352 if y_flipped {
3353 available_above
3354 } else {
3355 available_below
3356 },
3357 );
3358
3359 // If the min height doesn't fit within text bounds, instead fit within the window.
3360 if height < min_height {
3361 let available_above = bottom_y_when_flipped;
3362 let available_below = viewport_bounds.bottom() - target_position.y;
3363 if available_below > min_height {
3364 y_flipped = false;
3365 height = min_height;
3366 } else if available_above > min_height {
3367 y_flipped = true;
3368 height = min_height;
3369 } else if available_above > available_below {
3370 y_flipped = true;
3371 height = available_above;
3372 } else {
3373 y_flipped = false;
3374 height = available_below;
3375 }
3376 }
3377
3378 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3379
3380 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3381 // for very narrow windows.
3382 let popovers =
3383 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3384 if popovers.is_empty() {
3385 return None;
3386 }
3387
3388 let max_width = popovers
3389 .iter()
3390 .map(|(_, _, size)| size.width)
3391 .max()
3392 .unwrap_or_default();
3393
3394 let mut current_position = gpui::Point {
3395 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3396 // overflow. Include space for the scrollbar.
3397 x: target_position
3398 .x
3399 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3400 y: if y_flipped {
3401 bottom_y_when_flipped
3402 } else {
3403 target_position.y
3404 },
3405 };
3406
3407 let mut laid_out_popovers = popovers
3408 .into_iter()
3409 .map(|(popover_type, element, size)| {
3410 if y_flipped {
3411 current_position.y -= size.height;
3412 }
3413 let position = current_position;
3414 window.defer_draw(element, current_position, 1);
3415 if !y_flipped {
3416 current_position.y += size.height + MENU_GAP;
3417 } else {
3418 current_position.y -= MENU_GAP;
3419 }
3420 (popover_type, Bounds::new(position, size))
3421 })
3422 .collect::<Vec<_>>();
3423
3424 if y_flipped {
3425 laid_out_popovers.reverse();
3426 }
3427
3428 Some((laid_out_popovers, y_flipped))
3429 })
3430 }
3431
3432 #[allow(clippy::too_many_arguments)]
3433 fn layout_context_menu_aside(
3434 &self,
3435 y_flipped: bool,
3436 menu_bounds: Bounds<Pixels>,
3437 target_bounds: Bounds<Pixels>,
3438 max_target_bounds: Bounds<Pixels>,
3439 max_height: Pixels,
3440 must_place_above_or_below: bool,
3441 text_hitbox: &Hitbox,
3442 viewport_bounds: Bounds<Pixels>,
3443 window: &mut Window,
3444 cx: &mut App,
3445 ) {
3446 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3447 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3448 && !must_place_above_or_below
3449 {
3450 let max_width = cmp::min(
3451 available_within_viewport.right - px(1.),
3452 MENU_ASIDE_MAX_WIDTH,
3453 );
3454 let Some(mut aside) = self.render_context_menu_aside(
3455 size(max_width, max_height - POPOVER_Y_PADDING),
3456 window,
3457 cx,
3458 ) else {
3459 return;
3460 };
3461 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3462 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3463 Some((aside, right_position))
3464 } else {
3465 let max_size = size(
3466 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3467 // won't be needed here.
3468 cmp::min(
3469 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3470 viewport_bounds.right(),
3471 ),
3472 cmp::min(
3473 max_height,
3474 cmp::max(
3475 available_within_viewport.top,
3476 available_within_viewport.bottom,
3477 ),
3478 ) - POPOVER_Y_PADDING,
3479 );
3480 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3481 return;
3482 };
3483 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3484
3485 let top_position = point(
3486 menu_bounds.origin.x,
3487 target_bounds.top() - actual_size.height,
3488 );
3489 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3490
3491 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3492 // Prefer to fit on the same side of the line as the menu, then on the other side of
3493 // the line.
3494 if !y_flipped && wanted.height < available.bottom {
3495 Some(bottom_position)
3496 } else if !y_flipped && wanted.height < available.top {
3497 Some(top_position)
3498 } else if y_flipped && wanted.height < available.top {
3499 Some(top_position)
3500 } else if y_flipped && wanted.height < available.bottom {
3501 Some(bottom_position)
3502 } else {
3503 None
3504 }
3505 };
3506
3507 // Prefer choosing a direction using max sizes rather than actual size for stability.
3508 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3509 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3510 let aside_position = fit_within(available_within_text, wanted)
3511 // Fallback: fit max size in window.
3512 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3513 // Fallback: fit actual size in window.
3514 .or_else(|| fit_within(available_within_viewport, actual_size));
3515
3516 aside_position.map(|position| (aside, position))
3517 };
3518
3519 // Skip drawing if it doesn't fit anywhere.
3520 if let Some((aside, position)) = positioned_aside {
3521 window.defer_draw(aside, position, 2);
3522 }
3523 }
3524
3525 fn render_context_menu(
3526 &self,
3527 line_height: Pixels,
3528 height: Pixels,
3529 y_flipped: bool,
3530 window: &mut Window,
3531 cx: &mut App,
3532 ) -> Option<AnyElement> {
3533 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3534 self.editor.update(cx, |editor, cx| {
3535 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3536 })
3537 }
3538
3539 fn render_context_menu_aside(
3540 &self,
3541 max_size: Size<Pixels>,
3542 window: &mut Window,
3543 cx: &mut App,
3544 ) -> Option<AnyElement> {
3545 if max_size.width < px(100.) || max_size.height < px(12.) {
3546 None
3547 } else {
3548 self.editor.update(cx, |editor, cx| {
3549 editor.render_context_menu_aside(max_size, window, cx)
3550 })
3551 }
3552 }
3553
3554 #[allow(clippy::too_many_arguments)]
3555 fn layout_edit_prediction_popover(
3556 &self,
3557 text_bounds: &Bounds<Pixels>,
3558 content_origin: gpui::Point<Pixels>,
3559 editor_snapshot: &EditorSnapshot,
3560 visible_row_range: Range<DisplayRow>,
3561 scroll_top: f32,
3562 scroll_bottom: f32,
3563 line_layouts: &[LineWithInvisibles],
3564 line_height: Pixels,
3565 scroll_pixel_position: gpui::Point<Pixels>,
3566 newest_selection_head: Option<DisplayPoint>,
3567 editor_width: Pixels,
3568 style: &EditorStyle,
3569 window: &mut Window,
3570 cx: &mut App,
3571 ) -> Option<AnyElement> {
3572 const PADDING_X: Pixels = Pixels(24.);
3573 const PADDING_Y: Pixels = Pixels(2.);
3574
3575 let editor = self.editor.read(cx);
3576 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3577
3578 if editor.edit_prediction_visible_in_cursor_popover(true) {
3579 return None;
3580 }
3581
3582 // Adjust text origin for horizontal scrolling (in some cases here)
3583 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3584
3585 // Clamp left offset after extreme scrollings
3586 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3587 x: point.x.max(content_origin.x),
3588 y: point.y,
3589 };
3590
3591 match &active_inline_completion.completion {
3592 InlineCompletion::Move { target, .. } => {
3593 let target_display_point = target.to_display_point(editor_snapshot);
3594
3595 if editor.edit_prediction_requires_modifier() {
3596 if !editor.edit_prediction_preview_is_active() {
3597 return None;
3598 }
3599
3600 if target_display_point.row() < visible_row_range.start {
3601 let mut element = editor
3602 .render_edit_prediction_line_popover(
3603 "Scroll",
3604 Some(IconName::ArrowUp),
3605 window,
3606 cx,
3607 )?
3608 .into_any();
3609
3610 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3611
3612 let cursor = newest_selection_head?;
3613 let cursor_row_layout = line_layouts
3614 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3615 let cursor_column = cursor.column() as usize;
3616
3617 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3618
3619 const PADDING_Y: Pixels = px(12.);
3620
3621 let origin = start_point + point(cursor_character_x, PADDING_Y);
3622
3623 element.prepaint_at(origin, window, cx);
3624 return Some(element);
3625 } else if target_display_point.row() >= visible_row_range.end {
3626 let mut element = editor
3627 .render_edit_prediction_line_popover(
3628 "Scroll",
3629 Some(IconName::ArrowDown),
3630 window,
3631 cx,
3632 )?
3633 .into_any();
3634
3635 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3636
3637 let cursor = newest_selection_head?;
3638 let cursor_row_layout = line_layouts
3639 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3640 let cursor_column = cursor.column() as usize;
3641
3642 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3643 const PADDING_Y: Pixels = px(12.);
3644
3645 let origin = start_point
3646 + point(
3647 cursor_character_x,
3648 text_bounds.size.height - size.height - PADDING_Y,
3649 );
3650
3651 element.prepaint_at(origin, window, cx);
3652 return Some(element);
3653 } else {
3654 const POLE_WIDTH: Pixels = px(2.);
3655
3656 let mut element = v_flex()
3657 .items_end()
3658 .child(
3659 editor
3660 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3661 .rounded_br(px(0.))
3662 .rounded_tr(px(0.))
3663 .border_r_2(),
3664 )
3665 .child(
3666 div()
3667 .w(POLE_WIDTH)
3668 .bg(Editor::edit_prediction_callout_popover_border_color(cx))
3669 .h(line_height),
3670 )
3671 .into_any();
3672
3673 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3674
3675 let line_layout =
3676 line_layouts
3677 .get(target_display_point.row().minus(visible_row_range.start)
3678 as usize)?;
3679 let target_column = target_display_point.column() as usize;
3680
3681 let target_x = line_layout.x_for_index(target_column);
3682 let target_y = (target_display_point.row().as_f32() * line_height)
3683 - scroll_pixel_position.y;
3684
3685 let origin = clamp_start(
3686 start_point + point(target_x, target_y)
3687 - point(size.width - POLE_WIDTH, size.height - line_height),
3688 );
3689
3690 element.prepaint_at(origin, window, cx);
3691
3692 return Some(element);
3693 }
3694 }
3695
3696 if target_display_point.row().as_f32() < scroll_top {
3697 let mut element = editor
3698 .render_edit_prediction_line_popover(
3699 "Jump to Edit",
3700 Some(IconName::ArrowUp),
3701 window,
3702 cx,
3703 )?
3704 .into_any();
3705
3706 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3707 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3708
3709 element.prepaint_at(text_bounds.origin + offset, window, cx);
3710 Some(element)
3711 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3712 let mut element = editor
3713 .render_edit_prediction_line_popover(
3714 "Jump to Edit",
3715 Some(IconName::ArrowDown),
3716 window,
3717 cx,
3718 )?
3719 .into_any();
3720
3721 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3722 let offset = point(
3723 (text_bounds.size.width - size.width) / 2.,
3724 text_bounds.size.height - size.height - PADDING_Y,
3725 );
3726
3727 element.prepaint_at(text_bounds.origin + offset, window, cx);
3728 Some(element)
3729 } else {
3730 let mut element = editor
3731 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3732 .into_any();
3733 let target_line_end = DisplayPoint::new(
3734 target_display_point.row(),
3735 editor_snapshot.line_len(target_display_point.row()),
3736 );
3737 let origin = self.editor.update(cx, |editor, _cx| {
3738 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3739 })?;
3740
3741 element.prepaint_as_root(
3742 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3743 AvailableSpace::min_size(),
3744 window,
3745 cx,
3746 );
3747 Some(element)
3748 }
3749 }
3750 InlineCompletion::Edit {
3751 edits,
3752 edit_preview,
3753 display_mode,
3754 snapshot,
3755 } => {
3756 if self.editor.read(cx).has_visible_completions_menu() {
3757 return None;
3758 }
3759
3760 let edit_start = edits
3761 .first()
3762 .unwrap()
3763 .0
3764 .start
3765 .to_display_point(editor_snapshot);
3766 let edit_end = edits
3767 .last()
3768 .unwrap()
3769 .0
3770 .end
3771 .to_display_point(editor_snapshot);
3772
3773 let is_visible = visible_row_range.contains(&edit_start.row())
3774 || visible_row_range.contains(&edit_end.row());
3775 if !is_visible {
3776 return None;
3777 }
3778
3779 match display_mode {
3780 EditDisplayMode::TabAccept => {
3781 let range = &edits.first()?.0;
3782 let target_display_point = range.end.to_display_point(editor_snapshot);
3783
3784 let target_line_end = DisplayPoint::new(
3785 target_display_point.row(),
3786 editor_snapshot.line_len(target_display_point.row()),
3787 );
3788 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3789 Some((
3790 editor
3791 .render_edit_prediction_line_popover(
3792 "Accept", None, window, cx,
3793 )?
3794 .into_any(),
3795 editor.display_to_pixel_point(
3796 target_line_end,
3797 editor_snapshot,
3798 window,
3799 )?,
3800 ))
3801 })?;
3802
3803 element.prepaint_as_root(
3804 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3805 AvailableSpace::min_size(),
3806 window,
3807 cx,
3808 );
3809 return Some(element);
3810 }
3811 EditDisplayMode::Inline => return None,
3812 EditDisplayMode::DiffPopover => {}
3813 }
3814
3815 let highlighted_edits = crate::inline_completion_edit_text(
3816 &snapshot,
3817 edits,
3818 edit_preview.as_ref()?,
3819 false,
3820 cx,
3821 );
3822
3823 let styled_text = highlighted_edits.to_styled_text(&style.text);
3824 let line_count = highlighted_edits.text.lines().count();
3825
3826 const BORDER_WIDTH: Pixels = px(1.);
3827
3828 let mut element = h_flex()
3829 .items_start()
3830 .child(
3831 h_flex()
3832 .bg(cx.theme().colors().editor_background)
3833 .border(BORDER_WIDTH)
3834 .shadow_sm()
3835 .border_color(cx.theme().colors().border)
3836 .rounded_l_lg()
3837 .when(line_count > 1, |el| el.rounded_br_lg())
3838 .pr_1()
3839 .child(styled_text),
3840 )
3841 .child(
3842 h_flex()
3843 .h(line_height + BORDER_WIDTH * px(2.))
3844 .px_1p5()
3845 .gap_1()
3846 // Workaround: For some reason, there's a gap if we don't do this
3847 .ml(-BORDER_WIDTH)
3848 .shadow(smallvec![gpui::BoxShadow {
3849 color: gpui::black().opacity(0.05),
3850 offset: point(px(1.), px(1.)),
3851 blur_radius: px(2.),
3852 spread_radius: px(0.),
3853 }])
3854 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
3855 .border(BORDER_WIDTH)
3856 .border_color(cx.theme().colors().border)
3857 .rounded_r_lg()
3858 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
3859 )
3860 .into_any();
3861
3862 let longest_row =
3863 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3864 let longest_line_width = if visible_row_range.contains(&longest_row) {
3865 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3866 } else {
3867 layout_line(
3868 longest_row,
3869 editor_snapshot,
3870 style,
3871 editor_width,
3872 |_| false,
3873 window,
3874 cx,
3875 )
3876 .width
3877 };
3878
3879 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3880 .extend(Edges {
3881 right: -Self::SCROLLBAR_WIDTH,
3882 ..Default::default()
3883 });
3884
3885 let x_after_longest =
3886 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3887
3888 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3889
3890 // Fully visible if it can be displayed within the window (allow overlapping other
3891 // panes). However, this is only allowed if the popover starts within text_bounds.
3892 let can_position_to_the_right = x_after_longest < text_bounds.right()
3893 && x_after_longest + element_bounds.width < viewport_bounds.right();
3894
3895 let mut origin = if can_position_to_the_right {
3896 point(
3897 x_after_longest,
3898 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3899 - scroll_pixel_position.y,
3900 )
3901 } else {
3902 let cursor_row = newest_selection_head.map(|head| head.row());
3903 let above_edit = edit_start
3904 .row()
3905 .0
3906 .checked_sub(line_count as u32)
3907 .map(DisplayRow);
3908 let below_edit = Some(edit_end.row() + 1);
3909 let above_cursor = cursor_row
3910 .and_then(|row| row.0.checked_sub(line_count as u32).map(DisplayRow));
3911 let below_cursor = cursor_row.map(|cursor_row| cursor_row + 1);
3912
3913 // Place the edit popover adjacent to the edit if there is a location
3914 // available that is onscreen and does not obscure the cursor. Otherwise,
3915 // place it adjacent to the cursor.
3916 let row_target = [above_edit, below_edit, above_cursor, below_cursor]
3917 .into_iter()
3918 .flatten()
3919 .find(|&start_row| {
3920 let end_row = start_row + line_count as u32;
3921 visible_row_range.contains(&start_row)
3922 && visible_row_range.contains(&end_row)
3923 && cursor_row.map_or(true, |cursor_row| {
3924 !((start_row..end_row).contains(&cursor_row))
3925 })
3926 })?;
3927
3928 content_origin
3929 + point(
3930 -scroll_pixel_position.x,
3931 row_target.as_f32() * line_height - scroll_pixel_position.y,
3932 )
3933 };
3934
3935 origin.x -= BORDER_WIDTH;
3936
3937 window.defer_draw(element, origin, 1);
3938
3939 // Do not return an element, since it will already be drawn due to defer_draw.
3940 None
3941 }
3942 }
3943 }
3944
3945 fn layout_mouse_context_menu(
3946 &self,
3947 editor_snapshot: &EditorSnapshot,
3948 visible_range: Range<DisplayRow>,
3949 content_origin: gpui::Point<Pixels>,
3950 window: &mut Window,
3951 cx: &mut App,
3952 ) -> Option<AnyElement> {
3953 let position = self.editor.update(cx, |editor, _cx| {
3954 let visible_start_point = editor.display_to_pixel_point(
3955 DisplayPoint::new(visible_range.start, 0),
3956 editor_snapshot,
3957 window,
3958 )?;
3959 let visible_end_point = editor.display_to_pixel_point(
3960 DisplayPoint::new(visible_range.end, 0),
3961 editor_snapshot,
3962 window,
3963 )?;
3964
3965 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3966 let (source_display_point, position) = match mouse_context_menu.position {
3967 MenuPosition::PinnedToScreen(point) => (None, point),
3968 MenuPosition::PinnedToEditor { source, offset } => {
3969 let source_display_point = source.to_display_point(editor_snapshot);
3970 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3971 let position = content_origin + source_point + offset;
3972 (Some(source_display_point), position)
3973 }
3974 };
3975
3976 let source_included = source_display_point.map_or(true, |source_display_point| {
3977 visible_range
3978 .to_inclusive()
3979 .contains(&source_display_point.row())
3980 });
3981 let position_included =
3982 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3983 if !source_included && !position_included {
3984 None
3985 } else {
3986 Some(position)
3987 }
3988 })?;
3989
3990 let text_style = TextStyleRefinement {
3991 line_height: Some(DefiniteLength::Fraction(
3992 BufferLineHeight::Comfortable.value(),
3993 )),
3994 ..Default::default()
3995 };
3996 window.with_text_style(Some(text_style), |window| {
3997 let mut element = self.editor.update(cx, |editor, _| {
3998 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3999 let context_menu = mouse_context_menu.context_menu.clone();
4000
4001 Some(
4002 deferred(
4003 anchored()
4004 .position(position)
4005 .child(context_menu)
4006 .anchor(Corner::TopLeft)
4007 .snap_to_window_with_margin(px(8.)),
4008 )
4009 .with_priority(1)
4010 .into_any(),
4011 )
4012 })?;
4013
4014 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4015 Some(element)
4016 })
4017 }
4018
4019 #[allow(clippy::too_many_arguments)]
4020 fn layout_hover_popovers(
4021 &self,
4022 snapshot: &EditorSnapshot,
4023 hitbox: &Hitbox,
4024 text_hitbox: &Hitbox,
4025 visible_display_row_range: Range<DisplayRow>,
4026 content_origin: gpui::Point<Pixels>,
4027 scroll_pixel_position: gpui::Point<Pixels>,
4028 line_layouts: &[LineWithInvisibles],
4029 line_height: Pixels,
4030 em_width: Pixels,
4031 window: &mut Window,
4032 cx: &mut App,
4033 ) {
4034 struct MeasuredHoverPopover {
4035 element: AnyElement,
4036 size: Size<Pixels>,
4037 horizontal_offset: Pixels,
4038 }
4039
4040 let max_size = size(
4041 (120. * em_width) // Default size
4042 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4043 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4044 (16. * line_height) // Default size
4045 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4046 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4047 );
4048
4049 let hover_popovers = self.editor.update(cx, |editor, cx| {
4050 editor
4051 .hover_state
4052 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4053 });
4054 let Some((position, hover_popovers)) = hover_popovers else {
4055 return;
4056 };
4057
4058 // This is safe because we check on layout whether the required row is available
4059 let hovered_row_layout =
4060 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4061
4062 // Compute Hovered Point
4063 let x =
4064 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4065 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4066 let hovered_point = content_origin + point(x, y);
4067
4068 let mut overall_height = Pixels::ZERO;
4069 let mut measured_hover_popovers = Vec::new();
4070 for mut hover_popover in hover_popovers {
4071 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4072 let horizontal_offset =
4073 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4074
4075 overall_height += HOVER_POPOVER_GAP + size.height;
4076
4077 measured_hover_popovers.push(MeasuredHoverPopover {
4078 element: hover_popover,
4079 size,
4080 horizontal_offset,
4081 });
4082 }
4083 overall_height += HOVER_POPOVER_GAP;
4084
4085 fn draw_occluder(
4086 width: Pixels,
4087 origin: gpui::Point<Pixels>,
4088 window: &mut Window,
4089 cx: &mut App,
4090 ) {
4091 let mut occlusion = div()
4092 .size_full()
4093 .occlude()
4094 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4095 .into_any_element();
4096 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4097 window.defer_draw(occlusion, origin, 2);
4098 }
4099
4100 if hovered_point.y > overall_height {
4101 // There is enough space above. Render popovers above the hovered point
4102 let mut current_y = hovered_point.y;
4103 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4104 let size = popover.size;
4105 let popover_origin = point(
4106 hovered_point.x + popover.horizontal_offset,
4107 current_y - size.height,
4108 );
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 - HOVER_POPOVER_GAP);
4113 draw_occluder(size.width, origin, window, cx);
4114 }
4115
4116 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4117 }
4118 } else {
4119 // There is not enough space above. Render popovers below the hovered point
4120 let mut current_y = hovered_point.y + line_height;
4121 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4122 let size = popover.size;
4123 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4124
4125 window.defer_draw(popover.element, popover_origin, 2);
4126 if position != itertools::Position::Last {
4127 let origin = point(popover_origin.x, popover_origin.y + size.height);
4128 draw_occluder(size.width, origin, window, cx);
4129 }
4130
4131 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4132 }
4133 }
4134 }
4135
4136 #[allow(clippy::too_many_arguments)]
4137 fn layout_diff_hunk_controls(
4138 &self,
4139 row_range: Range<DisplayRow>,
4140 row_infos: &[RowInfo],
4141 text_hitbox: &Hitbox,
4142 position_map: &PositionMap,
4143 newest_cursor_position: Option<DisplayPoint>,
4144 line_height: Pixels,
4145 scroll_pixel_position: gpui::Point<Pixels>,
4146 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4147 editor: Entity<Editor>,
4148 window: &mut Window,
4149 cx: &mut App,
4150 ) -> Vec<AnyElement> {
4151 let point_for_position = position_map.point_for_position(window.mouse_position());
4152
4153 let mut controls = vec![];
4154
4155 let active_positions = [
4156 Some(point_for_position.previous_valid),
4157 newest_cursor_position,
4158 ];
4159
4160 for (hunk, _) in display_hunks {
4161 if let DisplayDiffHunk::Unfolded {
4162 display_row_range,
4163 multi_buffer_range,
4164 status,
4165 ..
4166 } = &hunk
4167 {
4168 if display_row_range.start < row_range.start
4169 || display_row_range.start >= row_range.end
4170 {
4171 continue;
4172 }
4173 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4174 if row_infos[row_ix].diff_status.is_none() {
4175 continue;
4176 }
4177 if matches!(
4178 row_infos[row_ix].diff_status,
4179 Some(DiffHunkStatus::Added(_))
4180 ) && !matches!(*status, DiffHunkStatus::Added(_))
4181 {
4182 continue;
4183 }
4184 if active_positions
4185 .iter()
4186 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4187 {
4188 let y = display_row_range.start.as_f32() * line_height
4189 + text_hitbox.bounds.top()
4190 - scroll_pixel_position.y;
4191 let x = text_hitbox.bounds.right() - px(100.);
4192
4193 let mut element = diff_hunk_controls(
4194 display_row_range.start.0,
4195 multi_buffer_range.clone(),
4196 line_height,
4197 &editor,
4198 cx,
4199 );
4200 element.prepaint_as_root(
4201 gpui::Point::new(x, y),
4202 size(px(100.0), line_height).into(),
4203 window,
4204 cx,
4205 );
4206 controls.push(element);
4207 }
4208 }
4209 }
4210
4211 controls
4212 }
4213
4214 #[allow(clippy::too_many_arguments)]
4215 fn layout_signature_help(
4216 &self,
4217 hitbox: &Hitbox,
4218 content_origin: gpui::Point<Pixels>,
4219 scroll_pixel_position: gpui::Point<Pixels>,
4220 newest_selection_head: Option<DisplayPoint>,
4221 start_row: DisplayRow,
4222 line_layouts: &[LineWithInvisibles],
4223 line_height: Pixels,
4224 em_width: Pixels,
4225 window: &mut Window,
4226 cx: &mut App,
4227 ) {
4228 if !self.editor.focus_handle(cx).is_focused(window) {
4229 return;
4230 }
4231 let Some(newest_selection_head) = newest_selection_head else {
4232 return;
4233 };
4234 let selection_row = newest_selection_head.row();
4235 if selection_row < start_row {
4236 return;
4237 }
4238 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4239 else {
4240 return;
4241 };
4242
4243 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4244 - scroll_pixel_position.x
4245 + content_origin.x;
4246 let start_y =
4247 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4248
4249 let max_size = size(
4250 (120. * em_width) // Default size
4251 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4252 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4253 (16. * line_height) // Default size
4254 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4255 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4256 );
4257
4258 let maybe_element = self.editor.update(cx, |editor, cx| {
4259 if let Some(popover) = editor.signature_help_state.popover_mut() {
4260 let element = popover.render(max_size, cx);
4261 Some(element)
4262 } else {
4263 None
4264 }
4265 });
4266 if let Some(mut element) = maybe_element {
4267 let window_size = window.viewport_size();
4268 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4269 let mut point = point(start_x, start_y - size.height);
4270
4271 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4272 if point.x + size.width >= window_size.width {
4273 point.x = window_size.width - size.width;
4274 }
4275
4276 window.defer_draw(element, point, 1)
4277 }
4278 }
4279
4280 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4281 window.paint_layer(layout.hitbox.bounds, |window| {
4282 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4283 let gutter_bg = cx.theme().colors().editor_gutter_background;
4284 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4285 window.paint_quad(fill(
4286 layout.position_map.text_hitbox.bounds,
4287 self.style.background,
4288 ));
4289
4290 if let EditorMode::Full = layout.mode {
4291 let mut active_rows = layout.active_rows.iter().peekable();
4292 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4293 let mut end_row = start_row.0;
4294 while active_rows
4295 .peek()
4296 .map_or(false, |(active_row, has_selection)| {
4297 active_row.0 == end_row + 1
4298 && *has_selection == contains_non_empty_selection
4299 })
4300 {
4301 active_rows.next().unwrap();
4302 end_row += 1;
4303 }
4304
4305 if !contains_non_empty_selection {
4306 let highlight_h_range =
4307 match layout.position_map.snapshot.current_line_highlight {
4308 CurrentLineHighlight::Gutter => Some(Range {
4309 start: layout.hitbox.left(),
4310 end: layout.gutter_hitbox.right(),
4311 }),
4312 CurrentLineHighlight::Line => Some(Range {
4313 start: layout.position_map.text_hitbox.bounds.left(),
4314 end: layout.position_map.text_hitbox.bounds.right(),
4315 }),
4316 CurrentLineHighlight::All => Some(Range {
4317 start: layout.hitbox.left(),
4318 end: layout.hitbox.right(),
4319 }),
4320 CurrentLineHighlight::None => None,
4321 };
4322 if let Some(range) = highlight_h_range {
4323 let active_line_bg = cx.theme().colors().editor_active_line_background;
4324 let bounds = Bounds {
4325 origin: point(
4326 range.start,
4327 layout.hitbox.origin.y
4328 + (start_row.as_f32() - scroll_top)
4329 * layout.position_map.line_height,
4330 ),
4331 size: size(
4332 range.end - range.start,
4333 layout.position_map.line_height
4334 * (end_row - start_row.0 + 1) as f32,
4335 ),
4336 };
4337 window.paint_quad(fill(bounds, active_line_bg));
4338 }
4339 }
4340 }
4341
4342 let mut paint_highlight =
4343 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4344 let origin = point(
4345 layout.hitbox.origin.x,
4346 layout.hitbox.origin.y
4347 + (highlight_row_start.as_f32() - scroll_top)
4348 * layout.position_map.line_height,
4349 );
4350 let size = size(
4351 layout.hitbox.size.width,
4352 layout.position_map.line_height
4353 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4354 );
4355 window.paint_quad(fill(Bounds { origin, size }, color));
4356 };
4357
4358 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4359 for (&new_row, &new_background) in &layout.highlighted_rows {
4360 match &mut current_paint {
4361 Some((current_background, current_range)) => {
4362 let current_background = *current_background;
4363 let new_range_started = current_background != new_background
4364 || current_range.end.next_row() != new_row;
4365 if new_range_started {
4366 paint_highlight(
4367 current_range.start,
4368 current_range.end,
4369 current_background,
4370 );
4371 current_paint = Some((new_background, new_row..new_row));
4372 continue;
4373 } else {
4374 current_range.end = current_range.end.next_row();
4375 }
4376 }
4377 None => current_paint = Some((new_background, new_row..new_row)),
4378 };
4379 }
4380 if let Some((color, range)) = current_paint {
4381 paint_highlight(range.start, range.end, color);
4382 }
4383
4384 let scroll_left =
4385 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4386
4387 for (wrap_position, active) in layout.wrap_guides.iter() {
4388 let x = (layout.position_map.text_hitbox.origin.x
4389 + *wrap_position
4390 + layout.position_map.em_width / 2.)
4391 - scroll_left;
4392
4393 let show_scrollbars = {
4394 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4395
4396 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4397 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4398 };
4399
4400 if x < layout.position_map.text_hitbox.origin.x
4401 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4402 {
4403 continue;
4404 }
4405
4406 let color = if *active {
4407 cx.theme().colors().editor_active_wrap_guide
4408 } else {
4409 cx.theme().colors().editor_wrap_guide
4410 };
4411 window.paint_quad(fill(
4412 Bounds {
4413 origin: point(x, layout.position_map.text_hitbox.origin.y),
4414 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4415 },
4416 color,
4417 ));
4418 }
4419 }
4420 })
4421 }
4422
4423 fn paint_indent_guides(
4424 &mut self,
4425 layout: &mut EditorLayout,
4426 window: &mut Window,
4427 cx: &mut App,
4428 ) {
4429 let Some(indent_guides) = &layout.indent_guides else {
4430 return;
4431 };
4432
4433 let faded_color = |color: Hsla, alpha: f32| {
4434 let mut faded = color;
4435 faded.a = alpha;
4436 faded
4437 };
4438
4439 for indent_guide in indent_guides {
4440 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4441 let settings = indent_guide.settings;
4442
4443 // TODO fixed for now, expose them through themes later
4444 const INDENT_AWARE_ALPHA: f32 = 0.2;
4445 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4446 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4447 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4448
4449 let line_color = match (settings.coloring, indent_guide.active) {
4450 (IndentGuideColoring::Disabled, _) => None,
4451 (IndentGuideColoring::Fixed, false) => {
4452 Some(cx.theme().colors().editor_indent_guide)
4453 }
4454 (IndentGuideColoring::Fixed, true) => {
4455 Some(cx.theme().colors().editor_indent_guide_active)
4456 }
4457 (IndentGuideColoring::IndentAware, false) => {
4458 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4459 }
4460 (IndentGuideColoring::IndentAware, true) => {
4461 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4462 }
4463 };
4464
4465 let background_color = match (settings.background_coloring, indent_guide.active) {
4466 (IndentGuideBackgroundColoring::Disabled, _) => None,
4467 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4468 indent_accent_colors,
4469 INDENT_AWARE_BACKGROUND_ALPHA,
4470 )),
4471 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4472 indent_accent_colors,
4473 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4474 )),
4475 };
4476
4477 let requested_line_width = if indent_guide.active {
4478 settings.active_line_width
4479 } else {
4480 settings.line_width
4481 }
4482 .clamp(1, 10);
4483 let mut line_indicator_width = 0.;
4484 if let Some(color) = line_color {
4485 window.paint_quad(fill(
4486 Bounds {
4487 origin: indent_guide.origin,
4488 size: size(px(requested_line_width as f32), indent_guide.length),
4489 },
4490 color,
4491 ));
4492 line_indicator_width = requested_line_width as f32;
4493 }
4494
4495 if let Some(color) = background_color {
4496 let width = indent_guide.single_indent_width - px(line_indicator_width);
4497 window.paint_quad(fill(
4498 Bounds {
4499 origin: point(
4500 indent_guide.origin.x + px(line_indicator_width),
4501 indent_guide.origin.y,
4502 ),
4503 size: size(width, indent_guide.length),
4504 },
4505 color,
4506 ));
4507 }
4508 }
4509 }
4510
4511 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4512 let is_singleton = self.editor.read(cx).is_singleton(cx);
4513
4514 let line_height = layout.position_map.line_height;
4515 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4516
4517 for LineNumberLayout {
4518 shaped_line,
4519 hitbox,
4520 display_row,
4521 } in layout.line_numbers.values()
4522 {
4523 let Some(hitbox) = hitbox else {
4524 continue;
4525 };
4526
4527 let is_active = layout.active_rows.contains_key(&display_row);
4528
4529 let color = if is_active {
4530 cx.theme().colors().editor_active_line_number
4531 } else if !is_singleton && hitbox.is_hovered(window) {
4532 cx.theme().colors().editor_hover_line_number
4533 } else {
4534 cx.theme().colors().editor_line_number
4535 };
4536
4537 let Some(line) = self
4538 .shape_line_number(shaped_line.text.clone(), color, window)
4539 .log_err()
4540 else {
4541 continue;
4542 };
4543 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4544 continue;
4545 };
4546 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4547 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4548 if is_singleton {
4549 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4550 } else {
4551 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4552 }
4553 }
4554 }
4555
4556 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4557 if layout.display_hunks.is_empty() {
4558 return;
4559 }
4560
4561 let line_height = layout.position_map.line_height;
4562 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4563 for (hunk, hitbox) in &layout.display_hunks {
4564 let hunk_to_paint = match hunk {
4565 DisplayDiffHunk::Folded { .. } => {
4566 let hunk_bounds = Self::diff_hunk_bounds(
4567 &layout.position_map.snapshot,
4568 line_height,
4569 layout.gutter_hitbox.bounds,
4570 hunk,
4571 );
4572 Some((
4573 hunk_bounds,
4574 cx.theme().status().modified,
4575 Corners::all(px(0.)),
4576 &DiffHunkSecondaryStatus::None,
4577 ))
4578 }
4579 DisplayDiffHunk::Unfolded {
4580 status,
4581 display_row_range,
4582 ..
4583 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4584 DiffHunkStatus::Added(secondary_status) => (
4585 hunk_hitbox.bounds,
4586 cx.theme().status().created,
4587 Corners::all(px(0.)),
4588 secondary_status,
4589 ),
4590 DiffHunkStatus::Modified(secondary_status) => (
4591 hunk_hitbox.bounds,
4592 cx.theme().status().modified,
4593 Corners::all(px(0.)),
4594 secondary_status,
4595 ),
4596 DiffHunkStatus::Removed(secondary_status)
4597 if !display_row_range.is_empty() =>
4598 {
4599 (
4600 hunk_hitbox.bounds,
4601 cx.theme().status().deleted,
4602 Corners::all(px(0.)),
4603 secondary_status,
4604 )
4605 }
4606 DiffHunkStatus::Removed(secondary_status) => (
4607 Bounds::new(
4608 point(
4609 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4610 hunk_hitbox.origin.y,
4611 ),
4612 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4613 ),
4614 cx.theme().status().deleted,
4615 Corners::all(1. * line_height),
4616 secondary_status,
4617 ),
4618 }),
4619 };
4620
4621 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4622 hunk_to_paint
4623 {
4624 if *secondary_status != DiffHunkSecondaryStatus::None {
4625 background_color.a *= 0.6;
4626 }
4627 window.paint_quad(quad(
4628 hunk_bounds,
4629 corner_radii,
4630 background_color,
4631 Edges::default(),
4632 transparent_black(),
4633 ));
4634 }
4635 }
4636 });
4637 }
4638
4639 fn diff_hunk_bounds(
4640 snapshot: &EditorSnapshot,
4641 line_height: Pixels,
4642 gutter_bounds: Bounds<Pixels>,
4643 hunk: &DisplayDiffHunk,
4644 ) -> Bounds<Pixels> {
4645 let scroll_position = snapshot.scroll_position();
4646 let scroll_top = scroll_position.y * line_height;
4647 let gutter_strip_width = (0.275 * line_height).floor();
4648
4649 match hunk {
4650 DisplayDiffHunk::Folded { display_row, .. } => {
4651 let start_y = display_row.as_f32() * line_height - scroll_top;
4652 let end_y = start_y + line_height;
4653 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4654 let highlight_size = size(gutter_strip_width, end_y - start_y);
4655 Bounds::new(highlight_origin, highlight_size)
4656 }
4657 DisplayDiffHunk::Unfolded {
4658 display_row_range,
4659 status,
4660 ..
4661 } => {
4662 if status.is_removed() && display_row_range.is_empty() {
4663 let row = display_row_range.start;
4664
4665 let offset = line_height / 2.;
4666 let start_y = row.as_f32() * line_height - offset - scroll_top;
4667 let end_y = start_y + line_height;
4668
4669 let width = (0.35 * line_height).floor();
4670 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4671 let highlight_size = size(width, end_y - start_y);
4672 Bounds::new(highlight_origin, highlight_size)
4673 } else {
4674 let start_row = display_row_range.start;
4675 let end_row = display_row_range.end;
4676 // If we're in a multibuffer, row range span might include an
4677 // excerpt header, so if we were to draw the marker straight away,
4678 // the hunk might include the rows of that header.
4679 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4680 // Instead, we simply check whether the range we're dealing with includes
4681 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4682 let end_row_in_current_excerpt = snapshot
4683 .blocks_in_range(start_row..end_row)
4684 .find_map(|(start_row, block)| {
4685 if matches!(block, Block::ExcerptBoundary { .. }) {
4686 Some(start_row)
4687 } else {
4688 None
4689 }
4690 })
4691 .unwrap_or(end_row);
4692
4693 let start_y = start_row.as_f32() * line_height - scroll_top;
4694 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4695
4696 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4697 let highlight_size = size(gutter_strip_width, end_y - start_y);
4698 Bounds::new(highlight_origin, highlight_size)
4699 }
4700 }
4701 }
4702 }
4703
4704 fn paint_gutter_indicators(
4705 &self,
4706 layout: &mut EditorLayout,
4707 window: &mut Window,
4708 cx: &mut App,
4709 ) {
4710 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4711 window.with_element_namespace("crease_toggles", |window| {
4712 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4713 crease_toggle.paint(window, cx);
4714 }
4715 });
4716
4717 for test_indicator in layout.test_indicators.iter_mut() {
4718 test_indicator.paint(window, cx);
4719 }
4720
4721 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4722 indicator.paint(window, cx);
4723 }
4724 });
4725 }
4726
4727 fn paint_gutter_highlights(
4728 &self,
4729 layout: &mut EditorLayout,
4730 window: &mut Window,
4731 cx: &mut App,
4732 ) {
4733 for (_, hunk_hitbox) in &layout.display_hunks {
4734 if let Some(hunk_hitbox) = hunk_hitbox {
4735 if !self
4736 .editor
4737 .read(cx)
4738 .buffer()
4739 .read(cx)
4740 .all_diff_hunks_expanded()
4741 {
4742 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4743 }
4744 }
4745 }
4746
4747 let show_git_gutter = layout
4748 .position_map
4749 .snapshot
4750 .show_git_diff_gutter
4751 .unwrap_or_else(|| {
4752 matches!(
4753 ProjectSettings::get_global(cx).git.git_gutter,
4754 Some(GitGutterSetting::TrackedFiles)
4755 )
4756 });
4757 if show_git_gutter {
4758 Self::paint_diff_hunks(layout, window, cx)
4759 }
4760
4761 let highlight_width = 0.275 * layout.position_map.line_height;
4762 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4763 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4764 for (range, color) in &layout.highlighted_gutter_ranges {
4765 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4766 layout.visible_display_row_range.start - DisplayRow(1)
4767 } else {
4768 range.start.row()
4769 };
4770 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4771 layout.visible_display_row_range.end + DisplayRow(1)
4772 } else {
4773 range.end.row()
4774 };
4775
4776 let start_y = layout.gutter_hitbox.top()
4777 + start_row.0 as f32 * layout.position_map.line_height
4778 - layout.position_map.scroll_pixel_position.y;
4779 let end_y = layout.gutter_hitbox.top()
4780 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4781 - layout.position_map.scroll_pixel_position.y;
4782 let bounds = Bounds::from_corners(
4783 point(layout.gutter_hitbox.left(), start_y),
4784 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4785 );
4786 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4787 }
4788 });
4789 }
4790
4791 fn paint_blamed_display_rows(
4792 &self,
4793 layout: &mut EditorLayout,
4794 window: &mut Window,
4795 cx: &mut App,
4796 ) {
4797 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4798 return;
4799 };
4800
4801 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4802 for mut blame_element in blamed_display_rows.into_iter() {
4803 blame_element.paint(window, cx);
4804 }
4805 })
4806 }
4807
4808 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4809 window.with_content_mask(
4810 Some(ContentMask {
4811 bounds: layout.position_map.text_hitbox.bounds,
4812 }),
4813 |window| {
4814 let cursor_style = if self
4815 .editor
4816 .read(cx)
4817 .hovered_link_state
4818 .as_ref()
4819 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4820 {
4821 CursorStyle::PointingHand
4822 } else {
4823 CursorStyle::IBeam
4824 };
4825 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4826
4827 let invisible_display_ranges = self.paint_highlights(layout, window);
4828 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4829 self.paint_redactions(layout, window);
4830 self.paint_cursors(layout, window, cx);
4831 self.paint_inline_blame(layout, window, cx);
4832 self.paint_diff_hunk_controls(layout, window, cx);
4833 window.with_element_namespace("crease_trailers", |window| {
4834 for trailer in layout.crease_trailers.iter_mut().flatten() {
4835 trailer.element.paint(window, cx);
4836 }
4837 });
4838 },
4839 )
4840 }
4841
4842 fn paint_highlights(
4843 &mut self,
4844 layout: &mut EditorLayout,
4845 window: &mut Window,
4846 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4847 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4848 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4849 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4850 for (range, color) in &layout.highlighted_ranges {
4851 self.paint_highlighted_range(
4852 range.clone(),
4853 *color,
4854 Pixels::ZERO,
4855 line_end_overshoot,
4856 layout,
4857 window,
4858 );
4859 }
4860
4861 let corner_radius = 0.15 * layout.position_map.line_height;
4862
4863 for (player_color, selections) in &layout.selections {
4864 for selection in selections.iter() {
4865 self.paint_highlighted_range(
4866 selection.range.clone(),
4867 player_color.selection,
4868 corner_radius,
4869 corner_radius * 2.,
4870 layout,
4871 window,
4872 );
4873
4874 if selection.is_local && !selection.range.is_empty() {
4875 invisible_display_ranges.push(selection.range.clone());
4876 }
4877 }
4878 }
4879 invisible_display_ranges
4880 })
4881 }
4882
4883 fn paint_lines(
4884 &mut self,
4885 invisible_display_ranges: &[Range<DisplayPoint>],
4886 layout: &mut EditorLayout,
4887 window: &mut Window,
4888 cx: &mut App,
4889 ) {
4890 let whitespace_setting = self
4891 .editor
4892 .read(cx)
4893 .buffer
4894 .read(cx)
4895 .settings_at(0, cx)
4896 .show_whitespaces;
4897
4898 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4899 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4900 line_with_invisibles.draw(
4901 layout,
4902 row,
4903 layout.content_origin,
4904 whitespace_setting,
4905 invisible_display_ranges,
4906 window,
4907 cx,
4908 )
4909 }
4910
4911 for line_element in &mut layout.line_elements {
4912 line_element.paint(window, cx);
4913 }
4914 }
4915
4916 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4917 if layout.redacted_ranges.is_empty() {
4918 return;
4919 }
4920
4921 let line_end_overshoot = layout.line_end_overshoot();
4922
4923 // A softer than perfect black
4924 let redaction_color = gpui::rgb(0x0e1111);
4925
4926 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4927 for range in layout.redacted_ranges.iter() {
4928 self.paint_highlighted_range(
4929 range.clone(),
4930 redaction_color.into(),
4931 Pixels::ZERO,
4932 line_end_overshoot,
4933 layout,
4934 window,
4935 );
4936 }
4937 });
4938 }
4939
4940 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4941 for cursor in &mut layout.visible_cursors {
4942 cursor.paint(layout.content_origin, window, cx);
4943 }
4944 }
4945
4946 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4947 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4948
4949 if let Some(scrollbar_layout) = scrollbar_x {
4950 let hitbox = scrollbar_layout.hitbox.clone();
4951 let text_unit_size = scrollbar_layout.text_unit_size;
4952 let visible_range = scrollbar_layout.visible_range.clone();
4953 let thumb_bounds = scrollbar_layout.thumb_bounds();
4954
4955 if scrollbar_layout.visible {
4956 window.paint_layer(hitbox.bounds, |window| {
4957 window.paint_quad(quad(
4958 hitbox.bounds,
4959 Corners::default(),
4960 cx.theme().colors().scrollbar_track_background,
4961 Edges {
4962 top: Pixels::ZERO,
4963 right: Pixels::ZERO,
4964 bottom: Pixels::ZERO,
4965 left: Pixels::ZERO,
4966 },
4967 cx.theme().colors().scrollbar_track_border,
4968 ));
4969
4970 window.paint_quad(quad(
4971 thumb_bounds,
4972 Corners::default(),
4973 cx.theme().colors().scrollbar_thumb_background,
4974 Edges {
4975 top: Pixels::ZERO,
4976 right: Pixels::ZERO,
4977 bottom: Pixels::ZERO,
4978 left: ScrollbarLayout::BORDER_WIDTH,
4979 },
4980 cx.theme().colors().scrollbar_thumb_border,
4981 ));
4982 })
4983 }
4984
4985 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4986
4987 window.on_mouse_event({
4988 let editor = self.editor.clone();
4989
4990 // there may be a way to avoid this clone
4991 let hitbox = hitbox.clone();
4992
4993 let mut mouse_position = window.mouse_position();
4994 move |event: &MouseMoveEvent, phase, window, cx| {
4995 if phase == DispatchPhase::Capture {
4996 return;
4997 }
4998
4999 editor.update(cx, |editor, cx| {
5000 if event.pressed_button == Some(MouseButton::Left)
5001 && editor
5002 .scroll_manager
5003 .is_dragging_scrollbar(Axis::Horizontal)
5004 {
5005 let x = mouse_position.x;
5006 let new_x = event.position.x;
5007 if (hitbox.left()..hitbox.right()).contains(&x) {
5008 let mut position = editor.scroll_position(cx);
5009
5010 position.x += (new_x - x) / text_unit_size;
5011 if position.x < 0.0 {
5012 position.x = 0.0;
5013 }
5014 editor.set_scroll_position(position, window, cx);
5015 }
5016
5017 cx.stop_propagation();
5018 } else {
5019 editor.scroll_manager.set_is_dragging_scrollbar(
5020 Axis::Horizontal,
5021 false,
5022 cx,
5023 );
5024
5025 if hitbox.is_hovered(window) {
5026 editor.scroll_manager.show_scrollbar(window, cx);
5027 }
5028 }
5029 mouse_position = event.position;
5030 })
5031 }
5032 });
5033
5034 if self
5035 .editor
5036 .read(cx)
5037 .scroll_manager
5038 .is_dragging_scrollbar(Axis::Horizontal)
5039 {
5040 window.on_mouse_event({
5041 let editor = self.editor.clone();
5042 move |_: &MouseUpEvent, phase, _, cx| {
5043 if phase == DispatchPhase::Capture {
5044 return;
5045 }
5046
5047 editor.update(cx, |editor, cx| {
5048 editor.scroll_manager.set_is_dragging_scrollbar(
5049 Axis::Horizontal,
5050 false,
5051 cx,
5052 );
5053 cx.stop_propagation();
5054 });
5055 }
5056 });
5057 } else {
5058 window.on_mouse_event({
5059 let editor = self.editor.clone();
5060
5061 move |event: &MouseDownEvent, phase, window, cx| {
5062 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5063 return;
5064 }
5065
5066 editor.update(cx, |editor, cx| {
5067 editor.scroll_manager.set_is_dragging_scrollbar(
5068 Axis::Horizontal,
5069 true,
5070 cx,
5071 );
5072
5073 let x = event.position.x;
5074
5075 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5076 let center_row =
5077 ((x - hitbox.left()) / text_unit_size).round() as u32;
5078 let top_row = center_row.saturating_sub(
5079 (visible_range.end - visible_range.start) as u32 / 2,
5080 );
5081
5082 let mut position = editor.scroll_position(cx);
5083 position.x = top_row as f32;
5084
5085 editor.set_scroll_position(position, window, cx);
5086 } else {
5087 editor.scroll_manager.show_scrollbar(window, cx);
5088 }
5089
5090 cx.stop_propagation();
5091 });
5092 }
5093 });
5094 }
5095 }
5096
5097 if let Some(scrollbar_layout) = scrollbar_y {
5098 let hitbox = scrollbar_layout.hitbox.clone();
5099 let text_unit_size = scrollbar_layout.text_unit_size;
5100 let visible_range = scrollbar_layout.visible_range.clone();
5101 let thumb_bounds = scrollbar_layout.thumb_bounds();
5102
5103 if scrollbar_layout.visible {
5104 window.paint_layer(hitbox.bounds, |window| {
5105 window.paint_quad(quad(
5106 hitbox.bounds,
5107 Corners::default(),
5108 cx.theme().colors().scrollbar_track_background,
5109 Edges {
5110 top: Pixels::ZERO,
5111 right: Pixels::ZERO,
5112 bottom: Pixels::ZERO,
5113 left: ScrollbarLayout::BORDER_WIDTH,
5114 },
5115 cx.theme().colors().scrollbar_track_border,
5116 ));
5117
5118 let fast_markers =
5119 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5120 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5121 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5122
5123 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5124 for marker in markers.iter().chain(&fast_markers) {
5125 let mut marker = marker.clone();
5126 marker.bounds.origin += hitbox.origin;
5127 window.paint_quad(marker);
5128 }
5129
5130 window.paint_quad(quad(
5131 thumb_bounds,
5132 Corners::default(),
5133 cx.theme().colors().scrollbar_thumb_background,
5134 Edges {
5135 top: Pixels::ZERO,
5136 right: Pixels::ZERO,
5137 bottom: Pixels::ZERO,
5138 left: ScrollbarLayout::BORDER_WIDTH,
5139 },
5140 cx.theme().colors().scrollbar_thumb_border,
5141 ));
5142 });
5143 }
5144
5145 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5146
5147 window.on_mouse_event({
5148 let editor = self.editor.clone();
5149
5150 let hitbox = hitbox.clone();
5151
5152 let mut mouse_position = window.mouse_position();
5153 move |event: &MouseMoveEvent, phase, window, cx| {
5154 if phase == DispatchPhase::Capture {
5155 return;
5156 }
5157
5158 editor.update(cx, |editor, cx| {
5159 if event.pressed_button == Some(MouseButton::Left)
5160 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5161 {
5162 let y = mouse_position.y;
5163 let new_y = event.position.y;
5164 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5165 let mut position = editor.scroll_position(cx);
5166 position.y += (new_y - y) / text_unit_size;
5167 if position.y < 0.0 {
5168 position.y = 0.0;
5169 }
5170 editor.set_scroll_position(position, window, cx);
5171 }
5172 } else {
5173 editor.scroll_manager.set_is_dragging_scrollbar(
5174 Axis::Vertical,
5175 false,
5176 cx,
5177 );
5178
5179 if hitbox.is_hovered(window) {
5180 editor.scroll_manager.show_scrollbar(window, cx);
5181 }
5182 }
5183 mouse_position = event.position;
5184 })
5185 }
5186 });
5187
5188 if self
5189 .editor
5190 .read(cx)
5191 .scroll_manager
5192 .is_dragging_scrollbar(Axis::Vertical)
5193 {
5194 window.on_mouse_event({
5195 let editor = self.editor.clone();
5196 move |_: &MouseUpEvent, phase, _, cx| {
5197 if phase == DispatchPhase::Capture {
5198 return;
5199 }
5200
5201 editor.update(cx, |editor, cx| {
5202 editor.scroll_manager.set_is_dragging_scrollbar(
5203 Axis::Vertical,
5204 false,
5205 cx,
5206 );
5207 cx.stop_propagation();
5208 });
5209 }
5210 });
5211 } else {
5212 window.on_mouse_event({
5213 let editor = self.editor.clone();
5214
5215 move |event: &MouseDownEvent, phase, window, cx| {
5216 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5217 return;
5218 }
5219
5220 editor.update(cx, |editor, cx| {
5221 editor.scroll_manager.set_is_dragging_scrollbar(
5222 Axis::Vertical,
5223 true,
5224 cx,
5225 );
5226
5227 let y = event.position.y;
5228 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5229 let center_row =
5230 ((y - hitbox.top()) / text_unit_size).round() as u32;
5231 let top_row = center_row.saturating_sub(
5232 (visible_range.end - visible_range.start) as u32 / 2,
5233 );
5234 let mut position = editor.scroll_position(cx);
5235 position.y = top_row as f32;
5236 editor.set_scroll_position(position, window, cx);
5237 } else {
5238 editor.scroll_manager.show_scrollbar(window, cx);
5239 }
5240
5241 cx.stop_propagation();
5242 });
5243 }
5244 });
5245 }
5246 }
5247 }
5248
5249 fn collect_fast_scrollbar_markers(
5250 &self,
5251 layout: &EditorLayout,
5252 scrollbar_layout: &ScrollbarLayout,
5253 cx: &mut App,
5254 ) -> Vec<PaintQuad> {
5255 const LIMIT: usize = 100;
5256 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5257 return vec![];
5258 }
5259 let cursor_ranges = layout
5260 .cursors
5261 .iter()
5262 .map(|(point, color)| ColoredRange {
5263 start: point.row(),
5264 end: point.row(),
5265 color: *color,
5266 })
5267 .collect_vec();
5268 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5269 }
5270
5271 fn refresh_slow_scrollbar_markers(
5272 &self,
5273 layout: &EditorLayout,
5274 scrollbar_layout: &ScrollbarLayout,
5275 window: &mut Window,
5276 cx: &mut App,
5277 ) {
5278 self.editor.update(cx, |editor, cx| {
5279 if !editor.is_singleton(cx)
5280 || !editor
5281 .scrollbar_marker_state
5282 .should_refresh(scrollbar_layout.hitbox.size)
5283 {
5284 return;
5285 }
5286
5287 let scrollbar_layout = scrollbar_layout.clone();
5288 let background_highlights = editor.background_highlights.clone();
5289 let snapshot = layout.position_map.snapshot.clone();
5290 let theme = cx.theme().clone();
5291 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5292
5293 editor.scrollbar_marker_state.dirty = false;
5294 editor.scrollbar_marker_state.pending_refresh =
5295 Some(cx.spawn_in(window, |editor, mut cx| async move {
5296 let scrollbar_size = scrollbar_layout.hitbox.size;
5297 let scrollbar_markers = cx
5298 .background_spawn(async move {
5299 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5300 let mut marker_quads = Vec::new();
5301 if scrollbar_settings.git_diff {
5302 let marker_row_ranges =
5303 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5304 let start_display_row =
5305 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5306 .to_display_point(&snapshot.display_snapshot)
5307 .row();
5308 let mut end_display_row =
5309 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5310 .to_display_point(&snapshot.display_snapshot)
5311 .row();
5312 if end_display_row != start_display_row {
5313 end_display_row.0 -= 1;
5314 }
5315 let color = match &hunk.status() {
5316 DiffHunkStatus::Added(_) => theme.status().created,
5317 DiffHunkStatus::Modified(_) => theme.status().modified,
5318 DiffHunkStatus::Removed(_) => theme.status().deleted,
5319 };
5320 ColoredRange {
5321 start: start_display_row,
5322 end: end_display_row,
5323 color,
5324 }
5325 });
5326
5327 marker_quads.extend(
5328 scrollbar_layout
5329 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5330 );
5331 }
5332
5333 for (background_highlight_id, (_, background_ranges)) in
5334 background_highlights.iter()
5335 {
5336 let is_search_highlights = *background_highlight_id
5337 == TypeId::of::<BufferSearchHighlights>();
5338 let is_text_highlights = *background_highlight_id
5339 == TypeId::of::<SelectedTextHighlight>();
5340 let is_symbol_occurrences = *background_highlight_id
5341 == TypeId::of::<DocumentHighlightRead>()
5342 || *background_highlight_id
5343 == TypeId::of::<DocumentHighlightWrite>();
5344 if (is_search_highlights && scrollbar_settings.search_results)
5345 || (is_text_highlights && scrollbar_settings.selected_text)
5346 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5347 {
5348 let mut color = theme.status().info;
5349 if is_symbol_occurrences {
5350 color.fade_out(0.5);
5351 }
5352 let marker_row_ranges = background_ranges.iter().map(|range| {
5353 let display_start = range
5354 .start
5355 .to_display_point(&snapshot.display_snapshot);
5356 let display_end =
5357 range.end.to_display_point(&snapshot.display_snapshot);
5358 ColoredRange {
5359 start: display_start.row(),
5360 end: display_end.row(),
5361 color,
5362 }
5363 });
5364 marker_quads.extend(
5365 scrollbar_layout
5366 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5367 );
5368 }
5369 }
5370
5371 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5372 let diagnostics = snapshot
5373 .buffer_snapshot
5374 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5375 // Don't show diagnostics the user doesn't care about
5376 .filter(|diagnostic| {
5377 match (
5378 scrollbar_settings.diagnostics,
5379 diagnostic.diagnostic.severity,
5380 ) {
5381 (ScrollbarDiagnostics::All, _) => true,
5382 (
5383 ScrollbarDiagnostics::Error,
5384 DiagnosticSeverity::ERROR,
5385 ) => true,
5386 (
5387 ScrollbarDiagnostics::Warning,
5388 DiagnosticSeverity::ERROR
5389 | DiagnosticSeverity::WARNING,
5390 ) => true,
5391 (
5392 ScrollbarDiagnostics::Information,
5393 DiagnosticSeverity::ERROR
5394 | DiagnosticSeverity::WARNING
5395 | DiagnosticSeverity::INFORMATION,
5396 ) => true,
5397 (_, _) => false,
5398 }
5399 })
5400 // We want to sort by severity, in order to paint the most severe diagnostics last.
5401 .sorted_by_key(|diagnostic| {
5402 std::cmp::Reverse(diagnostic.diagnostic.severity)
5403 });
5404
5405 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5406 let start_display = diagnostic
5407 .range
5408 .start
5409 .to_display_point(&snapshot.display_snapshot);
5410 let end_display = diagnostic
5411 .range
5412 .end
5413 .to_display_point(&snapshot.display_snapshot);
5414 let color = match diagnostic.diagnostic.severity {
5415 DiagnosticSeverity::ERROR => theme.status().error,
5416 DiagnosticSeverity::WARNING => theme.status().warning,
5417 DiagnosticSeverity::INFORMATION => theme.status().info,
5418 _ => theme.status().hint,
5419 };
5420 ColoredRange {
5421 start: start_display.row(),
5422 end: end_display.row(),
5423 color,
5424 }
5425 });
5426 marker_quads.extend(
5427 scrollbar_layout
5428 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5429 );
5430 }
5431
5432 Arc::from(marker_quads)
5433 })
5434 .await;
5435
5436 editor.update(&mut cx, |editor, cx| {
5437 editor.scrollbar_marker_state.markers = scrollbar_markers;
5438 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5439 editor.scrollbar_marker_state.pending_refresh = None;
5440 cx.notify();
5441 })?;
5442
5443 Ok(())
5444 }));
5445 });
5446 }
5447
5448 #[allow(clippy::too_many_arguments)]
5449 fn paint_highlighted_range(
5450 &self,
5451 range: Range<DisplayPoint>,
5452 color: Hsla,
5453 corner_radius: Pixels,
5454 line_end_overshoot: Pixels,
5455 layout: &EditorLayout,
5456 window: &mut Window,
5457 ) {
5458 let start_row = layout.visible_display_row_range.start;
5459 let end_row = layout.visible_display_row_range.end;
5460 if range.start != range.end {
5461 let row_range = if range.end.column() == 0 {
5462 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5463 } else {
5464 cmp::max(range.start.row(), start_row)
5465 ..cmp::min(range.end.row().next_row(), end_row)
5466 };
5467
5468 let highlighted_range = HighlightedRange {
5469 color,
5470 line_height: layout.position_map.line_height,
5471 corner_radius,
5472 start_y: layout.content_origin.y
5473 + row_range.start.as_f32() * layout.position_map.line_height
5474 - layout.position_map.scroll_pixel_position.y,
5475 lines: row_range
5476 .iter_rows()
5477 .map(|row| {
5478 let line_layout =
5479 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5480 HighlightedRangeLine {
5481 start_x: if row == range.start.row() {
5482 layout.content_origin.x
5483 + line_layout.x_for_index(range.start.column() as usize)
5484 - layout.position_map.scroll_pixel_position.x
5485 } else {
5486 layout.content_origin.x
5487 - layout.position_map.scroll_pixel_position.x
5488 },
5489 end_x: if row == range.end.row() {
5490 layout.content_origin.x
5491 + line_layout.x_for_index(range.end.column() as usize)
5492 - layout.position_map.scroll_pixel_position.x
5493 } else {
5494 layout.content_origin.x + line_layout.width + line_end_overshoot
5495 - layout.position_map.scroll_pixel_position.x
5496 },
5497 }
5498 })
5499 .collect(),
5500 };
5501
5502 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5503 }
5504 }
5505
5506 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5507 if let Some(mut inline_blame) = layout.inline_blame.take() {
5508 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5509 inline_blame.paint(window, cx);
5510 })
5511 }
5512 }
5513
5514 fn paint_diff_hunk_controls(
5515 &mut self,
5516 layout: &mut EditorLayout,
5517 window: &mut Window,
5518 cx: &mut App,
5519 ) {
5520 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5521 diff_hunk_control.paint(window, cx);
5522 }
5523 }
5524
5525 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5526 for mut block in layout.blocks.drain(..) {
5527 block.element.paint(window, cx);
5528 }
5529 }
5530
5531 fn paint_inline_completion_popover(
5532 &mut self,
5533 layout: &mut EditorLayout,
5534 window: &mut Window,
5535 cx: &mut App,
5536 ) {
5537 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5538 inline_completion_popover.paint(window, cx);
5539 }
5540 }
5541
5542 fn paint_mouse_context_menu(
5543 &mut self,
5544 layout: &mut EditorLayout,
5545 window: &mut Window,
5546 cx: &mut App,
5547 ) {
5548 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5549 mouse_context_menu.paint(window, cx);
5550 }
5551 }
5552
5553 fn paint_scroll_wheel_listener(
5554 &mut self,
5555 layout: &EditorLayout,
5556 window: &mut Window,
5557 cx: &mut App,
5558 ) {
5559 window.on_mouse_event({
5560 let position_map = layout.position_map.clone();
5561 let editor = self.editor.clone();
5562 let hitbox = layout.hitbox.clone();
5563 let mut delta = ScrollDelta::default();
5564
5565 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5566 // accidentally turn off their scrolling.
5567 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5568
5569 move |event: &ScrollWheelEvent, phase, window, cx| {
5570 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5571 delta = delta.coalesce(event.delta);
5572 editor.update(cx, |editor, cx| {
5573 let position_map: &PositionMap = &position_map;
5574
5575 let line_height = position_map.line_height;
5576 let max_glyph_width = position_map.em_width;
5577 let (delta, axis) = match delta {
5578 gpui::ScrollDelta::Pixels(mut pixels) => {
5579 //Trackpad
5580 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5581 (pixels, axis)
5582 }
5583
5584 gpui::ScrollDelta::Lines(lines) => {
5585 //Not trackpad
5586 let pixels =
5587 point(lines.x * max_glyph_width, lines.y * line_height);
5588 (pixels, None)
5589 }
5590 };
5591
5592 let current_scroll_position = position_map.snapshot.scroll_position();
5593 let x = (current_scroll_position.x * max_glyph_width
5594 - (delta.x * scroll_sensitivity))
5595 / max_glyph_width;
5596 let y = (current_scroll_position.y * line_height
5597 - (delta.y * scroll_sensitivity))
5598 / line_height;
5599 let mut scroll_position =
5600 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5601 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5602 if forbid_vertical_scroll {
5603 scroll_position.y = current_scroll_position.y;
5604 }
5605
5606 if scroll_position != current_scroll_position {
5607 editor.scroll(scroll_position, axis, window, cx);
5608 cx.stop_propagation();
5609 } else if y < 0. {
5610 // Due to clamping, we may fail to detect cases of overscroll to the top;
5611 // We want the scroll manager to get an update in such cases and detect the change of direction
5612 // on the next frame.
5613 cx.notify();
5614 }
5615 });
5616 }
5617 }
5618 });
5619 }
5620
5621 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5622 self.paint_scroll_wheel_listener(layout, window, cx);
5623
5624 window.on_mouse_event({
5625 let position_map = layout.position_map.clone();
5626 let editor = self.editor.clone();
5627 let diff_hunk_range =
5628 layout
5629 .display_hunks
5630 .iter()
5631 .find_map(|(hunk, hunk_hitbox)| match hunk {
5632 DisplayDiffHunk::Folded { .. } => None,
5633 DisplayDiffHunk::Unfolded {
5634 multi_buffer_range, ..
5635 } => {
5636 if hunk_hitbox
5637 .as_ref()
5638 .map(|hitbox| hitbox.is_hovered(window))
5639 .unwrap_or(false)
5640 {
5641 Some(multi_buffer_range.clone())
5642 } else {
5643 None
5644 }
5645 }
5646 });
5647 let line_numbers = layout.line_numbers.clone();
5648
5649 move |event: &MouseDownEvent, phase, window, cx| {
5650 if phase == DispatchPhase::Bubble {
5651 match event.button {
5652 MouseButton::Left => editor.update(cx, |editor, cx| {
5653 let pending_mouse_down = editor
5654 .pending_mouse_down
5655 .get_or_insert_with(Default::default)
5656 .clone();
5657
5658 *pending_mouse_down.borrow_mut() = Some(event.clone());
5659
5660 Self::mouse_left_down(
5661 editor,
5662 event,
5663 diff_hunk_range.clone(),
5664 &position_map,
5665 line_numbers.as_ref(),
5666 window,
5667 cx,
5668 );
5669 }),
5670 MouseButton::Right => editor.update(cx, |editor, cx| {
5671 Self::mouse_right_down(editor, event, &position_map, window, cx);
5672 }),
5673 MouseButton::Middle => editor.update(cx, |editor, cx| {
5674 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5675 }),
5676 _ => {}
5677 };
5678 }
5679 }
5680 });
5681
5682 window.on_mouse_event({
5683 let editor = self.editor.clone();
5684 let position_map = layout.position_map.clone();
5685
5686 move |event: &MouseUpEvent, phase, window, cx| {
5687 if phase == DispatchPhase::Bubble {
5688 editor.update(cx, |editor, cx| {
5689 Self::mouse_up(editor, event, &position_map, window, cx)
5690 });
5691 }
5692 }
5693 });
5694
5695 window.on_mouse_event({
5696 let editor = self.editor.clone();
5697 let position_map = layout.position_map.clone();
5698 let mut captured_mouse_down = None;
5699
5700 move |event: &MouseUpEvent, phase, window, cx| match phase {
5701 // Clear the pending mouse down during the capture phase,
5702 // so that it happens even if another event handler stops
5703 // propagation.
5704 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5705 let pending_mouse_down = editor
5706 .pending_mouse_down
5707 .get_or_insert_with(Default::default)
5708 .clone();
5709
5710 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5711 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5712 captured_mouse_down = pending_mouse_down.take();
5713 window.refresh();
5714 }
5715 }),
5716 // Fire click handlers during the bubble phase.
5717 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5718 if let Some(mouse_down) = captured_mouse_down.take() {
5719 let event = ClickEvent {
5720 down: mouse_down,
5721 up: event.clone(),
5722 };
5723 Self::click(editor, &event, &position_map, window, cx);
5724 }
5725 }),
5726 }
5727 });
5728
5729 window.on_mouse_event({
5730 let position_map = layout.position_map.clone();
5731 let editor = self.editor.clone();
5732
5733 move |event: &MouseMoveEvent, phase, window, cx| {
5734 if phase == DispatchPhase::Bubble {
5735 editor.update(cx, |editor, cx| {
5736 if editor.hover_state.focused(window, cx) {
5737 return;
5738 }
5739 if event.pressed_button == Some(MouseButton::Left)
5740 || event.pressed_button == Some(MouseButton::Middle)
5741 {
5742 Self::mouse_dragged(editor, event, &position_map, window, cx)
5743 }
5744
5745 Self::mouse_moved(editor, event, &position_map, window, cx)
5746 });
5747 }
5748 }
5749 });
5750 }
5751
5752 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5753 bounds.top_right().x - self.style.scrollbar_width
5754 }
5755
5756 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5757 let style = &self.style;
5758 let font_size = style.text.font_size.to_pixels(window.rem_size());
5759 let layout = window
5760 .text_system()
5761 .shape_line(
5762 SharedString::from(" ".repeat(column)),
5763 font_size,
5764 &[TextRun {
5765 len: column,
5766 font: style.text.font(),
5767 color: Hsla::default(),
5768 background_color: None,
5769 underline: None,
5770 strikethrough: None,
5771 }],
5772 )
5773 .unwrap();
5774
5775 layout.width
5776 }
5777
5778 fn max_line_number_width(
5779 &self,
5780 snapshot: &EditorSnapshot,
5781 window: &mut Window,
5782 cx: &mut App,
5783 ) -> Pixels {
5784 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5785 self.column_pixels(digit_count, window, cx)
5786 }
5787
5788 fn shape_line_number(
5789 &self,
5790 text: SharedString,
5791 color: Hsla,
5792 window: &mut Window,
5793 ) -> anyhow::Result<ShapedLine> {
5794 let run = TextRun {
5795 len: text.len(),
5796 font: self.style.text.font(),
5797 color,
5798 background_color: None,
5799 underline: None,
5800 strikethrough: None,
5801 };
5802 window.text_system().shape_line(
5803 text,
5804 self.style.text.font_size.to_pixels(window.rem_size()),
5805 &[run],
5806 )
5807 }
5808}
5809
5810fn header_jump_data(
5811 snapshot: &EditorSnapshot,
5812 block_row_start: DisplayRow,
5813 height: u32,
5814 for_excerpt: &ExcerptInfo,
5815) -> JumpData {
5816 let range = &for_excerpt.range;
5817 let buffer = &for_excerpt.buffer;
5818 let jump_anchor = range
5819 .primary
5820 .as_ref()
5821 .map_or(range.context.start, |primary| primary.start);
5822
5823 let excerpt_start = range.context.start;
5824 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5825 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5826 0
5827 } else {
5828 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5829 jump_position.row.saturating_sub(excerpt_start_point.row)
5830 };
5831
5832 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5833 .saturating_sub(
5834 snapshot
5835 .scroll_anchor
5836 .scroll_position(&snapshot.display_snapshot)
5837 .y as u32,
5838 );
5839
5840 JumpData::MultiBufferPoint {
5841 excerpt_id: for_excerpt.id,
5842 anchor: jump_anchor,
5843 position: jump_position,
5844 line_offset_from_top,
5845 }
5846}
5847
5848pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5849
5850impl AcceptEditPredictionBinding {
5851 pub fn keystroke(&self) -> Option<&Keystroke> {
5852 if let Some(binding) = self.0.as_ref() {
5853 match &binding.keystrokes() {
5854 [keystroke] => Some(keystroke),
5855 _ => None,
5856 }
5857 } else {
5858 None
5859 }
5860 }
5861}
5862
5863#[allow(clippy::too_many_arguments)]
5864fn prepaint_gutter_button(
5865 button: IconButton,
5866 row: DisplayRow,
5867 line_height: Pixels,
5868 gutter_dimensions: &GutterDimensions,
5869 scroll_pixel_position: gpui::Point<Pixels>,
5870 gutter_hitbox: &Hitbox,
5871 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5872 window: &mut Window,
5873 cx: &mut App,
5874) -> AnyElement {
5875 let mut button = button.into_any_element();
5876 let available_space = size(
5877 AvailableSpace::MinContent,
5878 AvailableSpace::Definite(line_height),
5879 );
5880 let indicator_size = button.layout_as_root(available_space, window, cx);
5881
5882 let blame_width = gutter_dimensions.git_blame_entries_width;
5883 let gutter_width = rows_with_hunk_bounds
5884 .get(&row)
5885 .map(|bounds| bounds.size.width);
5886 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5887
5888 let mut x = left_offset;
5889 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5890 - indicator_size.width
5891 - left_offset;
5892 x += available_width / 2.;
5893
5894 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5895 y += (line_height - indicator_size.height) / 2.;
5896
5897 button.prepaint_as_root(
5898 gutter_hitbox.origin + point(x, y),
5899 available_space,
5900 window,
5901 cx,
5902 );
5903 button
5904}
5905
5906fn render_inline_blame_entry(
5907 editor: Entity<Editor>,
5908 blame: &gpui::Entity<GitBlame>,
5909 blame_entry: BlameEntry,
5910 style: &EditorStyle,
5911 cx: &mut App,
5912) -> AnyElement {
5913 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5914
5915 let author = blame_entry.author.as_deref().unwrap_or_default();
5916 let summary_enabled = ProjectSettings::get_global(cx)
5917 .git
5918 .show_inline_commit_summary();
5919
5920 let text = match blame_entry.summary.as_ref() {
5921 Some(summary) if summary_enabled => {
5922 format!("{}, {} - {}", author, relative_timestamp, summary)
5923 }
5924 _ => format!("{}, {}", author, relative_timestamp),
5925 };
5926 let blame = blame.clone();
5927 let blame_entry = blame_entry.clone();
5928
5929 h_flex()
5930 .id("inline-blame")
5931 .w_full()
5932 .font_family(style.text.font().family)
5933 .text_color(cx.theme().status().hint)
5934 .line_height(style.text.line_height)
5935 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5936 .child(text)
5937 .gap_2()
5938 .hoverable_tooltip(move |window, cx| {
5939 let details = blame.read(cx).details_for_entry(&blame_entry);
5940 let tooltip =
5941 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5942 editor.update(cx, |editor, _| {
5943 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5944 });
5945 tooltip.into()
5946 })
5947 .into_any()
5948}
5949
5950fn render_blame_entry(
5951 ix: usize,
5952 blame: &gpui::Entity<GitBlame>,
5953 blame_entry: BlameEntry,
5954 style: &EditorStyle,
5955 last_used_color: &mut Option<(PlayerColor, Oid)>,
5956 editor: Entity<Editor>,
5957 cx: &mut App,
5958) -> AnyElement {
5959 let mut sha_color = cx
5960 .theme()
5961 .players()
5962 .color_for_participant(blame_entry.sha.into());
5963 // If the last color we used is the same as the one we get for this line, but
5964 // the commit SHAs are different, then we try again to get a different color.
5965 match *last_used_color {
5966 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5967 let index: u32 = blame_entry.sha.into();
5968 sha_color = cx.theme().players().color_for_participant(index + 1);
5969 }
5970 _ => {}
5971 };
5972 last_used_color.replace((sha_color, blame_entry.sha));
5973
5974 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5975
5976 let short_commit_id = blame_entry.sha.display_short();
5977
5978 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5979 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5980 let details = blame.read(cx).details_for_entry(&blame_entry);
5981
5982 h_flex()
5983 .w_full()
5984 .justify_between()
5985 .font_family(style.text.font().family)
5986 .line_height(style.text.line_height)
5987 .id(("blame", ix))
5988 .text_color(cx.theme().status().hint)
5989 .pr_2()
5990 .gap_2()
5991 .child(
5992 h_flex()
5993 .items_center()
5994 .gap_2()
5995 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5996 .child(name),
5997 )
5998 .child(relative_timestamp)
5999 .on_mouse_down(MouseButton::Right, {
6000 let blame_entry = blame_entry.clone();
6001 let details = details.clone();
6002 move |event, window, cx| {
6003 deploy_blame_entry_context_menu(
6004 &blame_entry,
6005 details.as_ref(),
6006 editor.clone(),
6007 event.position,
6008 window,
6009 cx,
6010 );
6011 }
6012 })
6013 .hover(|style| style.bg(cx.theme().colors().element_hover))
6014 .when_some(
6015 details
6016 .as_ref()
6017 .and_then(|details| details.permalink.clone()),
6018 |this, url| {
6019 this.cursor_pointer().on_click(move |_, _, cx| {
6020 cx.stop_propagation();
6021 cx.open_url(url.as_str())
6022 })
6023 },
6024 )
6025 .hoverable_tooltip(move |window, cx| {
6026 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
6027 .into()
6028 })
6029 .into_any()
6030}
6031
6032fn deploy_blame_entry_context_menu(
6033 blame_entry: &BlameEntry,
6034 details: Option<&ParsedCommitMessage>,
6035 editor: Entity<Editor>,
6036 position: gpui::Point<Pixels>,
6037 window: &mut Window,
6038 cx: &mut App,
6039) {
6040 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6041 let sha = format!("{}", blame_entry.sha);
6042 menu.on_blur_subscription(Subscription::new(|| {}))
6043 .entry("Copy commit SHA", None, move |_, cx| {
6044 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6045 })
6046 .when_some(
6047 details.and_then(|details| details.permalink.clone()),
6048 |this, url| {
6049 this.entry("Open permalink", None, move |_, cx| {
6050 cx.open_url(url.as_str())
6051 })
6052 },
6053 )
6054 });
6055
6056 editor.update(cx, move |editor, cx| {
6057 editor.mouse_context_menu = Some(MouseContextMenu::new(
6058 MenuPosition::PinnedToScreen(position),
6059 context_menu,
6060 window,
6061 cx,
6062 ));
6063 cx.notify();
6064 });
6065}
6066
6067#[derive(Debug)]
6068pub(crate) struct LineWithInvisibles {
6069 fragments: SmallVec<[LineFragment; 1]>,
6070 invisibles: Vec<Invisible>,
6071 len: usize,
6072 width: Pixels,
6073 font_size: Pixels,
6074}
6075
6076#[allow(clippy::large_enum_variant)]
6077enum LineFragment {
6078 Text(ShapedLine),
6079 Element {
6080 element: Option<AnyElement>,
6081 size: Size<Pixels>,
6082 len: usize,
6083 },
6084}
6085
6086impl fmt::Debug for LineFragment {
6087 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6088 match self {
6089 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6090 LineFragment::Element { size, len, .. } => f
6091 .debug_struct("Element")
6092 .field("size", size)
6093 .field("len", len)
6094 .finish(),
6095 }
6096 }
6097}
6098
6099impl LineWithInvisibles {
6100 #[allow(clippy::too_many_arguments)]
6101 fn from_chunks<'a>(
6102 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6103 editor_style: &EditorStyle,
6104 max_line_len: usize,
6105 max_line_count: usize,
6106 editor_mode: EditorMode,
6107 text_width: Pixels,
6108 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6109 window: &mut Window,
6110 cx: &mut App,
6111 ) -> Vec<Self> {
6112 let text_style = &editor_style.text;
6113 let mut layouts = Vec::with_capacity(max_line_count);
6114 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6115 let mut line = String::new();
6116 let mut invisibles = Vec::new();
6117 let mut width = Pixels::ZERO;
6118 let mut len = 0;
6119 let mut styles = Vec::new();
6120 let mut non_whitespace_added = false;
6121 let mut row = 0;
6122 let mut line_exceeded_max_len = false;
6123 let font_size = text_style.font_size.to_pixels(window.rem_size());
6124
6125 let ellipsis = SharedString::from("⋯");
6126
6127 for highlighted_chunk in chunks.chain([HighlightedChunk {
6128 text: "\n",
6129 style: None,
6130 is_tab: false,
6131 replacement: None,
6132 }]) {
6133 if let Some(replacement) = highlighted_chunk.replacement {
6134 if !line.is_empty() {
6135 let shaped_line = window
6136 .text_system()
6137 .shape_line(line.clone().into(), font_size, &styles)
6138 .unwrap();
6139 width += shaped_line.width;
6140 len += shaped_line.len;
6141 fragments.push(LineFragment::Text(shaped_line));
6142 line.clear();
6143 styles.clear();
6144 }
6145
6146 match replacement {
6147 ChunkReplacement::Renderer(renderer) => {
6148 let available_width = if renderer.constrain_width {
6149 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6150 ellipsis.clone()
6151 } else {
6152 SharedString::from(Arc::from(highlighted_chunk.text))
6153 };
6154 let shaped_line = window
6155 .text_system()
6156 .shape_line(
6157 chunk,
6158 font_size,
6159 &[text_style.to_run(highlighted_chunk.text.len())],
6160 )
6161 .unwrap();
6162 AvailableSpace::Definite(shaped_line.width)
6163 } else {
6164 AvailableSpace::MinContent
6165 };
6166
6167 let mut element = (renderer.render)(&mut ChunkRendererContext {
6168 context: cx,
6169 window,
6170 max_width: text_width,
6171 });
6172 let line_height = text_style.line_height_in_pixels(window.rem_size());
6173 let size = element.layout_as_root(
6174 size(available_width, AvailableSpace::Definite(line_height)),
6175 window,
6176 cx,
6177 );
6178
6179 width += size.width;
6180 len += highlighted_chunk.text.len();
6181 fragments.push(LineFragment::Element {
6182 element: Some(element),
6183 size,
6184 len: highlighted_chunk.text.len(),
6185 });
6186 }
6187 ChunkReplacement::Str(x) => {
6188 let text_style = if let Some(style) = highlighted_chunk.style {
6189 Cow::Owned(text_style.clone().highlight(style))
6190 } else {
6191 Cow::Borrowed(text_style)
6192 };
6193
6194 let run = TextRun {
6195 len: x.len(),
6196 font: text_style.font(),
6197 color: text_style.color,
6198 background_color: text_style.background_color,
6199 underline: text_style.underline,
6200 strikethrough: text_style.strikethrough,
6201 };
6202 let line_layout = window
6203 .text_system()
6204 .shape_line(x, font_size, &[run])
6205 .unwrap()
6206 .with_len(highlighted_chunk.text.len());
6207
6208 width += line_layout.width;
6209 len += highlighted_chunk.text.len();
6210 fragments.push(LineFragment::Text(line_layout))
6211 }
6212 }
6213 } else {
6214 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6215 if ix > 0 {
6216 let shaped_line = window
6217 .text_system()
6218 .shape_line(line.clone().into(), font_size, &styles)
6219 .unwrap();
6220 width += shaped_line.width;
6221 len += shaped_line.len;
6222 fragments.push(LineFragment::Text(shaped_line));
6223 layouts.push(Self {
6224 width: mem::take(&mut width),
6225 len: mem::take(&mut len),
6226 fragments: mem::take(&mut fragments),
6227 invisibles: std::mem::take(&mut invisibles),
6228 font_size,
6229 });
6230
6231 line.clear();
6232 styles.clear();
6233 row += 1;
6234 line_exceeded_max_len = false;
6235 non_whitespace_added = false;
6236 if row == max_line_count {
6237 return layouts;
6238 }
6239 }
6240
6241 if !line_chunk.is_empty() && !line_exceeded_max_len {
6242 let text_style = if let Some(style) = highlighted_chunk.style {
6243 Cow::Owned(text_style.clone().highlight(style))
6244 } else {
6245 Cow::Borrowed(text_style)
6246 };
6247
6248 if line.len() + line_chunk.len() > max_line_len {
6249 let mut chunk_len = max_line_len - line.len();
6250 while !line_chunk.is_char_boundary(chunk_len) {
6251 chunk_len -= 1;
6252 }
6253 line_chunk = &line_chunk[..chunk_len];
6254 line_exceeded_max_len = true;
6255 }
6256
6257 styles.push(TextRun {
6258 len: line_chunk.len(),
6259 font: text_style.font(),
6260 color: text_style.color,
6261 background_color: text_style.background_color,
6262 underline: text_style.underline,
6263 strikethrough: text_style.strikethrough,
6264 });
6265
6266 if editor_mode == EditorMode::Full {
6267 // Line wrap pads its contents with fake whitespaces,
6268 // avoid printing them
6269 let is_soft_wrapped = is_row_soft_wrapped(row);
6270 if highlighted_chunk.is_tab {
6271 if non_whitespace_added || !is_soft_wrapped {
6272 invisibles.push(Invisible::Tab {
6273 line_start_offset: line.len(),
6274 line_end_offset: line.len() + line_chunk.len(),
6275 });
6276 }
6277 } else {
6278 invisibles.extend(line_chunk.char_indices().filter_map(
6279 |(index, c)| {
6280 let is_whitespace = c.is_whitespace();
6281 non_whitespace_added |= !is_whitespace;
6282 if is_whitespace
6283 && (non_whitespace_added || !is_soft_wrapped)
6284 {
6285 Some(Invisible::Whitespace {
6286 line_offset: line.len() + index,
6287 })
6288 } else {
6289 None
6290 }
6291 },
6292 ))
6293 }
6294 }
6295
6296 line.push_str(line_chunk);
6297 }
6298 }
6299 }
6300 }
6301
6302 layouts
6303 }
6304
6305 #[allow(clippy::too_many_arguments)]
6306 fn prepaint(
6307 &mut self,
6308 line_height: Pixels,
6309 scroll_pixel_position: gpui::Point<Pixels>,
6310 row: DisplayRow,
6311 content_origin: gpui::Point<Pixels>,
6312 line_elements: &mut SmallVec<[AnyElement; 1]>,
6313 window: &mut Window,
6314 cx: &mut App,
6315 ) {
6316 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6317 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6318 for fragment in &mut self.fragments {
6319 match fragment {
6320 LineFragment::Text(line) => {
6321 fragment_origin.x += line.width;
6322 }
6323 LineFragment::Element { element, size, .. } => {
6324 let mut element = element
6325 .take()
6326 .expect("you can't prepaint LineWithInvisibles twice");
6327
6328 // Center the element vertically within the line.
6329 let mut element_origin = fragment_origin;
6330 element_origin.y += (line_height - size.height) / 2.;
6331 element.prepaint_at(element_origin, window, cx);
6332 line_elements.push(element);
6333
6334 fragment_origin.x += size.width;
6335 }
6336 }
6337 }
6338 }
6339
6340 #[allow(clippy::too_many_arguments)]
6341 fn draw(
6342 &self,
6343 layout: &EditorLayout,
6344 row: DisplayRow,
6345 content_origin: gpui::Point<Pixels>,
6346 whitespace_setting: ShowWhitespaceSetting,
6347 selection_ranges: &[Range<DisplayPoint>],
6348 window: &mut Window,
6349 cx: &mut App,
6350 ) {
6351 let line_height = layout.position_map.line_height;
6352 let line_y = line_height
6353 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6354
6355 let mut fragment_origin =
6356 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6357
6358 for fragment in &self.fragments {
6359 match fragment {
6360 LineFragment::Text(line) => {
6361 line.paint(fragment_origin, line_height, window, cx)
6362 .log_err();
6363 fragment_origin.x += line.width;
6364 }
6365 LineFragment::Element { size, .. } => {
6366 fragment_origin.x += size.width;
6367 }
6368 }
6369 }
6370
6371 self.draw_invisibles(
6372 selection_ranges,
6373 layout,
6374 content_origin,
6375 line_y,
6376 row,
6377 line_height,
6378 whitespace_setting,
6379 window,
6380 cx,
6381 );
6382 }
6383
6384 #[allow(clippy::too_many_arguments)]
6385 fn draw_invisibles(
6386 &self,
6387 selection_ranges: &[Range<DisplayPoint>],
6388 layout: &EditorLayout,
6389 content_origin: gpui::Point<Pixels>,
6390 line_y: Pixels,
6391 row: DisplayRow,
6392 line_height: Pixels,
6393 whitespace_setting: ShowWhitespaceSetting,
6394 window: &mut Window,
6395 cx: &mut App,
6396 ) {
6397 let extract_whitespace_info = |invisible: &Invisible| {
6398 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6399 Invisible::Tab {
6400 line_start_offset,
6401 line_end_offset,
6402 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6403 Invisible::Whitespace { line_offset } => {
6404 (*line_offset, line_offset + 1, &layout.space_invisible)
6405 }
6406 };
6407
6408 let x_offset = self.x_for_index(token_offset);
6409 let invisible_offset =
6410 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6411 let origin = content_origin
6412 + gpui::point(
6413 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6414 line_y,
6415 );
6416
6417 (
6418 [token_offset, token_end_offset],
6419 Box::new(move |window: &mut Window, cx: &mut App| {
6420 invisible_symbol
6421 .paint(origin, line_height, window, cx)
6422 .log_err();
6423 }),
6424 )
6425 };
6426
6427 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6428 match whitespace_setting {
6429 ShowWhitespaceSetting::None => (),
6430 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6431 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6432 let invisible_point = DisplayPoint::new(row, start as u32);
6433 if !selection_ranges
6434 .iter()
6435 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6436 {
6437 return;
6438 }
6439
6440 paint(window, cx);
6441 }),
6442
6443 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6444 // - It is a tab
6445 // - It is adjacent to an edge (start or end)
6446 // - It is adjacent to a whitespace (left or right)
6447 ShowWhitespaceSetting::Boundary => {
6448 // 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
6449 // the above cases.
6450 // Note: We zip in the original `invisibles` to check for tab equality
6451 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6452 for (([start, end], paint), invisible) in
6453 invisible_iter.zip_eq(self.invisibles.iter())
6454 {
6455 let should_render = match (&last_seen, invisible) {
6456 (_, Invisible::Tab { .. }) => true,
6457 (Some((_, last_end, _)), _) => *last_end == start,
6458 _ => false,
6459 };
6460
6461 if should_render || start == 0 || end == self.len {
6462 paint(window, cx);
6463
6464 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6465 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6466 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6467 // Note that we need to make sure that the last one is actually adjacent
6468 if !should_render_last && last_end == start {
6469 paint_last(window, cx);
6470 }
6471 }
6472 }
6473
6474 // Manually render anything within a selection
6475 let invisible_point = DisplayPoint::new(row, start as u32);
6476 if selection_ranges.iter().any(|region| {
6477 region.start <= invisible_point && invisible_point < region.end
6478 }) {
6479 paint(window, cx);
6480 }
6481
6482 last_seen = Some((should_render, end, paint));
6483 }
6484 }
6485 }
6486 }
6487
6488 pub fn x_for_index(&self, index: usize) -> Pixels {
6489 let mut fragment_start_x = Pixels::ZERO;
6490 let mut fragment_start_index = 0;
6491
6492 for fragment in &self.fragments {
6493 match fragment {
6494 LineFragment::Text(shaped_line) => {
6495 let fragment_end_index = fragment_start_index + shaped_line.len;
6496 if index < fragment_end_index {
6497 return fragment_start_x
6498 + shaped_line.x_for_index(index - fragment_start_index);
6499 }
6500 fragment_start_x += shaped_line.width;
6501 fragment_start_index = fragment_end_index;
6502 }
6503 LineFragment::Element { len, size, .. } => {
6504 let fragment_end_index = fragment_start_index + len;
6505 if index < fragment_end_index {
6506 return fragment_start_x;
6507 }
6508 fragment_start_x += size.width;
6509 fragment_start_index = fragment_end_index;
6510 }
6511 }
6512 }
6513
6514 fragment_start_x
6515 }
6516
6517 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6518 let mut fragment_start_x = Pixels::ZERO;
6519 let mut fragment_start_index = 0;
6520
6521 for fragment in &self.fragments {
6522 match fragment {
6523 LineFragment::Text(shaped_line) => {
6524 let fragment_end_x = fragment_start_x + shaped_line.width;
6525 if x < fragment_end_x {
6526 return Some(
6527 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6528 );
6529 }
6530 fragment_start_x = fragment_end_x;
6531 fragment_start_index += shaped_line.len;
6532 }
6533 LineFragment::Element { len, size, .. } => {
6534 let fragment_end_x = fragment_start_x + size.width;
6535 if x < fragment_end_x {
6536 return Some(fragment_start_index);
6537 }
6538 fragment_start_index += len;
6539 fragment_start_x = fragment_end_x;
6540 }
6541 }
6542 }
6543
6544 None
6545 }
6546
6547 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6548 let mut fragment_start_index = 0;
6549
6550 for fragment in &self.fragments {
6551 match fragment {
6552 LineFragment::Text(shaped_line) => {
6553 let fragment_end_index = fragment_start_index + shaped_line.len;
6554 if index < fragment_end_index {
6555 return shaped_line.font_id_for_index(index - fragment_start_index);
6556 }
6557 fragment_start_index = fragment_end_index;
6558 }
6559 LineFragment::Element { len, .. } => {
6560 let fragment_end_index = fragment_start_index + len;
6561 if index < fragment_end_index {
6562 return None;
6563 }
6564 fragment_start_index = fragment_end_index;
6565 }
6566 }
6567 }
6568
6569 None
6570 }
6571}
6572
6573#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6574enum Invisible {
6575 /// A tab character
6576 ///
6577 /// A tab character is internally represented by spaces (configured by the user's tab width)
6578 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6579 /// adjacency checks.
6580 Tab {
6581 line_start_offset: usize,
6582 line_end_offset: usize,
6583 },
6584 Whitespace {
6585 line_offset: usize,
6586 },
6587}
6588
6589impl EditorElement {
6590 /// Returns the rem size to use when rendering the [`EditorElement`].
6591 ///
6592 /// This allows UI elements to scale based on the `buffer_font_size`.
6593 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6594 match self.editor.read(cx).mode {
6595 EditorMode::Full => {
6596 let buffer_font_size = self.style.text.font_size;
6597 match buffer_font_size {
6598 AbsoluteLength::Pixels(pixels) => {
6599 let rem_size_scale = {
6600 // Our default UI font size is 14px on a 16px base scale.
6601 // This means the default UI font size is 0.875rems.
6602 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6603
6604 // We then determine the delta between a single rem and the default font
6605 // size scale.
6606 let default_font_size_delta = 1. - default_font_size_scale;
6607
6608 // Finally, we add this delta to 1rem to get the scale factor that
6609 // should be used to scale up the UI.
6610 1. + default_font_size_delta
6611 };
6612
6613 Some(pixels * rem_size_scale)
6614 }
6615 AbsoluteLength::Rems(rems) => {
6616 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6617 }
6618 }
6619 }
6620 // We currently use single-line and auto-height editors in UI contexts,
6621 // so we don't want to scale everything with the buffer font size, as it
6622 // ends up looking off.
6623 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6624 }
6625 }
6626}
6627
6628impl Element for EditorElement {
6629 type RequestLayoutState = ();
6630 type PrepaintState = EditorLayout;
6631
6632 fn id(&self) -> Option<ElementId> {
6633 None
6634 }
6635
6636 fn request_layout(
6637 &mut self,
6638 _: Option<&GlobalElementId>,
6639 window: &mut Window,
6640 cx: &mut App,
6641 ) -> (gpui::LayoutId, ()) {
6642 let rem_size = self.rem_size(cx);
6643 window.with_rem_size(rem_size, |window| {
6644 self.editor.update(cx, |editor, cx| {
6645 editor.set_style(self.style.clone(), window, cx);
6646
6647 let layout_id = match editor.mode {
6648 EditorMode::SingleLine { auto_width } => {
6649 let rem_size = window.rem_size();
6650
6651 let height = self.style.text.line_height_in_pixels(rem_size);
6652 if auto_width {
6653 let editor_handle = cx.entity().clone();
6654 let style = self.style.clone();
6655 window.request_measured_layout(
6656 Style::default(),
6657 move |_, _, window, cx| {
6658 let editor_snapshot = editor_handle
6659 .update(cx, |editor, cx| editor.snapshot(window, cx));
6660 let line = Self::layout_lines(
6661 DisplayRow(0)..DisplayRow(1),
6662 &editor_snapshot,
6663 &style,
6664 px(f32::MAX),
6665 |_| false, // Single lines never soft wrap
6666 window,
6667 cx,
6668 )
6669 .pop()
6670 .unwrap();
6671
6672 let font_id =
6673 window.text_system().resolve_font(&style.text.font());
6674 let font_size =
6675 style.text.font_size.to_pixels(window.rem_size());
6676 let em_width =
6677 window.text_system().em_width(font_id, font_size).unwrap();
6678
6679 size(line.width + em_width, height)
6680 },
6681 )
6682 } else {
6683 let mut style = Style::default();
6684 style.size.height = height.into();
6685 style.size.width = relative(1.).into();
6686 window.request_layout(style, None, cx)
6687 }
6688 }
6689 EditorMode::AutoHeight { max_lines } => {
6690 let editor_handle = cx.entity().clone();
6691 let max_line_number_width =
6692 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6693 window.request_measured_layout(
6694 Style::default(),
6695 move |known_dimensions, available_space, window, cx| {
6696 editor_handle
6697 .update(cx, |editor, cx| {
6698 compute_auto_height_layout(
6699 editor,
6700 max_lines,
6701 max_line_number_width,
6702 known_dimensions,
6703 available_space.width,
6704 window,
6705 cx,
6706 )
6707 })
6708 .unwrap_or_default()
6709 },
6710 )
6711 }
6712 EditorMode::Full => {
6713 let mut style = Style::default();
6714 style.size.width = relative(1.).into();
6715 style.size.height = relative(1.).into();
6716 window.request_layout(style, None, cx)
6717 }
6718 };
6719
6720 (layout_id, ())
6721 })
6722 })
6723 }
6724
6725 fn prepaint(
6726 &mut self,
6727 _: Option<&GlobalElementId>,
6728 bounds: Bounds<Pixels>,
6729 _: &mut Self::RequestLayoutState,
6730 window: &mut Window,
6731 cx: &mut App,
6732 ) -> Self::PrepaintState {
6733 let text_style = TextStyleRefinement {
6734 font_size: Some(self.style.text.font_size),
6735 line_height: Some(self.style.text.line_height),
6736 ..Default::default()
6737 };
6738 let focus_handle = self.editor.focus_handle(cx);
6739 window.set_view_id(self.editor.entity_id());
6740 window.set_focus_handle(&focus_handle, cx);
6741
6742 let rem_size = self.rem_size(cx);
6743 window.with_rem_size(rem_size, |window| {
6744 window.with_text_style(Some(text_style), |window| {
6745 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6746 let mut snapshot = self
6747 .editor
6748 .update(cx, |editor, cx| editor.snapshot(window, cx));
6749 let style = self.style.clone();
6750
6751 let font_id = window.text_system().resolve_font(&style.text.font());
6752 let font_size = style.text.font_size.to_pixels(window.rem_size());
6753 let line_height = style.text.line_height_in_pixels(window.rem_size());
6754 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6755 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6756
6757 let letter_size = size(em_width, line_height);
6758
6759 let gutter_dimensions = snapshot
6760 .gutter_dimensions(
6761 font_id,
6762 font_size,
6763 self.max_line_number_width(&snapshot, window, cx),
6764 cx,
6765 )
6766 .unwrap_or_default();
6767 let text_width = bounds.size.width - gutter_dimensions.width;
6768
6769 let editor_width =
6770 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6771
6772 snapshot = self.editor.update(cx, |editor, cx| {
6773 editor.last_bounds = Some(bounds);
6774 editor.gutter_dimensions = gutter_dimensions;
6775 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6776
6777 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6778 snapshot
6779 } else {
6780 let wrap_width = match editor.soft_wrap_mode(cx) {
6781 SoftWrap::GitDiff => None,
6782 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6783 SoftWrap::EditorWidth => Some(editor_width),
6784 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6785 SoftWrap::Bounded(column) => {
6786 Some(editor_width.min(column as f32 * em_advance))
6787 }
6788 };
6789
6790 if editor.set_wrap_width(wrap_width, cx) {
6791 editor.snapshot(window, cx)
6792 } else {
6793 snapshot
6794 }
6795 }
6796 });
6797
6798 let wrap_guides = self
6799 .editor
6800 .read(cx)
6801 .wrap_guides(cx)
6802 .iter()
6803 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6804 .collect::<SmallVec<[_; 2]>>();
6805
6806 let hitbox = window.insert_hitbox(bounds, false);
6807 let gutter_hitbox =
6808 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6809 let text_hitbox = window.insert_hitbox(
6810 Bounds {
6811 origin: gutter_hitbox.top_right(),
6812 size: size(text_width, bounds.size.height),
6813 },
6814 false,
6815 );
6816 // Offset the content_bounds from the text_bounds by the gutter margin (which
6817 // is roughly half a character wide) to make hit testing work more like how we want.
6818 let content_origin =
6819 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6820
6821 let scrollbar_bounds =
6822 Bounds::from_corners(content_origin, bounds.bottom_right());
6823
6824 let height_in_lines = scrollbar_bounds.size.height / line_height;
6825
6826 // NOTE: The max row number in the current file, minus one
6827 let max_row = snapshot.max_point().row().as_f32();
6828
6829 // NOTE: The max scroll position for the top of the window
6830 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6831 (max_row - height_in_lines + 1.).max(0.)
6832 } else {
6833 let settings = EditorSettings::get_global(cx);
6834 match settings.scroll_beyond_last_line {
6835 ScrollBeyondLastLine::OnePage => max_row,
6836 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6837 ScrollBeyondLastLine::VerticalScrollMargin => {
6838 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6839 .max(0.)
6840 }
6841 }
6842 };
6843
6844 // TODO: Autoscrolling for both axes
6845 let mut autoscroll_request = None;
6846 let mut autoscroll_containing_element = false;
6847 let mut autoscroll_horizontally = false;
6848 self.editor.update(cx, |editor, cx| {
6849 autoscroll_request = editor.autoscroll_request();
6850 autoscroll_containing_element =
6851 autoscroll_request.is_some() || editor.has_pending_selection();
6852 // TODO: Is this horizontal or vertical?!
6853 autoscroll_horizontally = editor.autoscroll_vertically(
6854 bounds,
6855 line_height,
6856 max_scroll_top,
6857 window,
6858 cx,
6859 );
6860 snapshot = editor.snapshot(window, cx);
6861 });
6862
6863 let mut scroll_position = snapshot.scroll_position();
6864 // The scroll position is a fractional point, the whole number of which represents
6865 // the top of the window in terms of display rows.
6866 let start_row = DisplayRow(scroll_position.y as u32);
6867 let max_row = snapshot.max_point().row();
6868 let end_row = cmp::min(
6869 (scroll_position.y + height_in_lines).ceil() as u32,
6870 max_row.next_row().0,
6871 );
6872 let end_row = DisplayRow(end_row);
6873
6874 let row_infos = snapshot
6875 .row_infos(start_row)
6876 .take((start_row..end_row).len())
6877 .collect::<Vec<RowInfo>>();
6878 let is_row_soft_wrapped = |row: usize| {
6879 row_infos
6880 .get(row)
6881 .map_or(true, |info| info.buffer_row.is_none())
6882 };
6883
6884 let start_anchor = if start_row == Default::default() {
6885 Anchor::min()
6886 } else {
6887 snapshot.buffer_snapshot.anchor_before(
6888 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6889 )
6890 };
6891 let end_anchor = if end_row > max_row {
6892 Anchor::max()
6893 } else {
6894 snapshot.buffer_snapshot.anchor_before(
6895 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6896 )
6897 };
6898
6899 let (mut highlighted_rows, distinguish_unstaged_hunks) =
6900 self.editor.update(cx, |editor, cx| {
6901 (
6902 editor.highlighted_display_rows(window, cx),
6903 editor.distinguish_unstaged_diff_hunks,
6904 )
6905 });
6906
6907 for (ix, row_info) in row_infos.iter().enumerate() {
6908 let background = match row_info.diff_status {
6909 Some(DiffHunkStatus::Added(secondary_status)) => {
6910 let color = style.status.created_background;
6911 match secondary_status {
6912 DiffHunkSecondaryStatus::HasSecondaryHunk
6913 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6914 if distinguish_unstaged_hunks =>
6915 {
6916 pattern_slash(color, line_height.0 / 4.0)
6917 }
6918 _ => color.into(),
6919 }
6920 }
6921 Some(DiffHunkStatus::Removed(secondary_status)) => {
6922 let color = style.status.deleted_background;
6923 match secondary_status {
6924 DiffHunkSecondaryStatus::HasSecondaryHunk
6925 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6926 if distinguish_unstaged_hunks =>
6927 {
6928 pattern_slash(color, line_height.0 / 4.0)
6929 }
6930 _ => color.into(),
6931 }
6932 }
6933 _ => continue,
6934 };
6935
6936 highlighted_rows
6937 .entry(start_row + DisplayRow(ix as u32))
6938 .or_insert(background);
6939 }
6940
6941 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6942 start_anchor..end_anchor,
6943 &snapshot.display_snapshot,
6944 cx.theme().colors(),
6945 );
6946 let highlighted_gutter_ranges =
6947 self.editor.read(cx).gutter_highlights_in_range(
6948 start_anchor..end_anchor,
6949 &snapshot.display_snapshot,
6950 cx,
6951 );
6952
6953 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6954 start_anchor..end_anchor,
6955 &snapshot.display_snapshot,
6956 cx,
6957 );
6958
6959 let (local_selections, selected_buffer_ids): (
6960 Vec<Selection<Point>>,
6961 Vec<BufferId>,
6962 ) = self.editor.update(cx, |editor, cx| {
6963 let all_selections = editor.selections.all::<Point>(cx);
6964 let selected_buffer_ids = if editor.is_singleton(cx) {
6965 Vec::new()
6966 } else {
6967 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6968
6969 for selection in all_selections {
6970 for buffer_id in snapshot
6971 .buffer_snapshot
6972 .buffer_ids_for_range(selection.range())
6973 {
6974 if selected_buffer_ids.last() != Some(&buffer_id) {
6975 selected_buffer_ids.push(buffer_id);
6976 }
6977 }
6978 }
6979
6980 selected_buffer_ids
6981 };
6982
6983 let mut selections = editor
6984 .selections
6985 .disjoint_in_range(start_anchor..end_anchor, cx);
6986 selections.extend(editor.selections.pending(cx));
6987
6988 (selections, selected_buffer_ids)
6989 });
6990
6991 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6992 start_anchor,
6993 end_anchor,
6994 &local_selections,
6995 &snapshot,
6996 start_row,
6997 end_row,
6998 window,
6999 cx,
7000 );
7001
7002 let line_numbers = self.layout_line_numbers(
7003 Some(&gutter_hitbox),
7004 gutter_dimensions,
7005 line_height,
7006 scroll_position,
7007 start_row..end_row,
7008 &row_infos,
7009 newest_selection_head,
7010 &snapshot,
7011 window,
7012 cx,
7013 );
7014
7015 let mut crease_toggles =
7016 window.with_element_namespace("crease_toggles", |window| {
7017 self.layout_crease_toggles(
7018 start_row..end_row,
7019 &row_infos,
7020 &active_rows,
7021 &snapshot,
7022 window,
7023 cx,
7024 )
7025 });
7026 let crease_trailers =
7027 window.with_element_namespace("crease_trailers", |window| {
7028 self.layout_crease_trailers(
7029 row_infos.iter().copied(),
7030 &snapshot,
7031 window,
7032 cx,
7033 )
7034 });
7035
7036 let display_hunks = self.layout_gutter_diff_hunks(
7037 line_height,
7038 &gutter_hitbox,
7039 start_row..end_row,
7040 &snapshot,
7041 window,
7042 cx,
7043 );
7044
7045 let mut line_layouts = Self::layout_lines(
7046 start_row..end_row,
7047 &snapshot,
7048 &self.style,
7049 editor_width,
7050 is_row_soft_wrapped,
7051 window,
7052 cx,
7053 );
7054
7055 let longest_line_blame_width = self
7056 .editor
7057 .update(cx, |editor, cx| {
7058 if !editor.show_git_blame_inline {
7059 return None;
7060 }
7061 let blame = editor.blame.as_ref()?;
7062 let blame_entry = blame
7063 .update(cx, |blame, cx| {
7064 let row_infos =
7065 snapshot.row_infos(snapshot.longest_row()).next()?;
7066 blame.blame_for_rows(&[row_infos], cx).next()
7067 })
7068 .flatten()?;
7069 let mut element = render_inline_blame_entry(
7070 self.editor.clone(),
7071 blame,
7072 blame_entry,
7073 &style,
7074 cx,
7075 );
7076 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7077 Some(
7078 element
7079 .layout_as_root(AvailableSpace::min_size(), window, cx)
7080 .width
7081 + inline_blame_padding,
7082 )
7083 })
7084 .unwrap_or(Pixels::ZERO);
7085
7086 let longest_line_width = layout_line(
7087 snapshot.longest_row(),
7088 &snapshot,
7089 &style,
7090 editor_width,
7091 is_row_soft_wrapped,
7092 window,
7093 cx,
7094 )
7095 .width;
7096
7097 let scrollbar_range_data = ScrollbarRangeData::new(
7098 scrollbar_bounds,
7099 letter_size,
7100 &snapshot,
7101 longest_line_width,
7102 longest_line_blame_width,
7103 &style,
7104 editor_width,
7105 cx,
7106 );
7107
7108 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7109 let mut scroll_width = scroll_range_bounds.size.width;
7110
7111 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7112 snapshot.sticky_header_excerpt(start_row)
7113 } else {
7114 None
7115 };
7116 let sticky_header_excerpt_id =
7117 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7118
7119 let blocks = window.with_element_namespace("blocks", |window| {
7120 self.render_blocks(
7121 start_row..end_row,
7122 &snapshot,
7123 &hitbox,
7124 &text_hitbox,
7125 editor_width,
7126 &mut scroll_width,
7127 &gutter_dimensions,
7128 em_width,
7129 gutter_dimensions.full_width(),
7130 line_height,
7131 &line_layouts,
7132 &local_selections,
7133 &selected_buffer_ids,
7134 is_row_soft_wrapped,
7135 sticky_header_excerpt_id,
7136 window,
7137 cx,
7138 )
7139 });
7140 let mut blocks = match blocks {
7141 Ok(blocks) => blocks,
7142 Err(resized_blocks) => {
7143 self.editor.update(cx, |editor, cx| {
7144 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7145 });
7146 return self.prepaint(None, bounds, &mut (), window, cx);
7147 }
7148 };
7149
7150 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7151 window.with_element_namespace("blocks", |window| {
7152 self.layout_sticky_buffer_header(
7153 sticky_header_excerpt,
7154 scroll_position.y,
7155 line_height,
7156 &snapshot,
7157 &hitbox,
7158 &selected_buffer_ids,
7159 window,
7160 cx,
7161 )
7162 })
7163 });
7164
7165 let start_buffer_row =
7166 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7167 let end_buffer_row =
7168 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7169
7170 let scroll_max = point(
7171 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7172 max_row.as_f32(),
7173 );
7174
7175 self.editor.update(cx, |editor, cx| {
7176 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7177
7178 let autoscrolled = if autoscroll_horizontally {
7179 editor.autoscroll_horizontally(
7180 start_row,
7181 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7182 scroll_width,
7183 em_width,
7184 &line_layouts,
7185 cx,
7186 )
7187 } else {
7188 false
7189 };
7190
7191 if clamped || autoscrolled {
7192 snapshot = editor.snapshot(window, cx);
7193 scroll_position = snapshot.scroll_position();
7194 }
7195 });
7196
7197 let scroll_pixel_position = point(
7198 scroll_position.x * em_width,
7199 scroll_position.y * line_height,
7200 );
7201
7202 let indent_guides = self.layout_indent_guides(
7203 content_origin,
7204 text_hitbox.origin,
7205 start_buffer_row..end_buffer_row,
7206 scroll_pixel_position,
7207 line_height,
7208 &snapshot,
7209 window,
7210 cx,
7211 );
7212
7213 let crease_trailers =
7214 window.with_element_namespace("crease_trailers", |window| {
7215 self.prepaint_crease_trailers(
7216 crease_trailers,
7217 &line_layouts,
7218 line_height,
7219 content_origin,
7220 scroll_pixel_position,
7221 em_width,
7222 window,
7223 cx,
7224 )
7225 });
7226
7227 let mut inline_blame = None;
7228 if let Some(newest_selection_head) = newest_selection_head {
7229 let display_row = newest_selection_head.row();
7230 if (start_row..end_row).contains(&display_row) {
7231 let line_ix = display_row.minus(start_row) as usize;
7232 let row_info = &row_infos[line_ix];
7233 let line_layout = &line_layouts[line_ix];
7234 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7235 inline_blame = self.layout_inline_blame(
7236 display_row,
7237 row_info,
7238 line_layout,
7239 crease_trailer_layout,
7240 em_width,
7241 content_origin,
7242 scroll_pixel_position,
7243 line_height,
7244 window,
7245 cx,
7246 );
7247 }
7248 }
7249
7250 let blamed_display_rows = self.layout_blame_entries(
7251 &row_infos,
7252 em_width,
7253 scroll_position,
7254 line_height,
7255 &gutter_hitbox,
7256 gutter_dimensions.git_blame_entries_width,
7257 window,
7258 cx,
7259 );
7260
7261 let scroll_max = point(
7262 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7263 max_scroll_top,
7264 );
7265
7266 self.editor.update(cx, |editor, cx| {
7267 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7268
7269 let autoscrolled = if autoscroll_horizontally {
7270 editor.autoscroll_horizontally(
7271 start_row,
7272 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7273 scroll_width,
7274 em_width,
7275 &line_layouts,
7276 cx,
7277 )
7278 } else {
7279 false
7280 };
7281
7282 if clamped || autoscrolled {
7283 snapshot = editor.snapshot(window, cx);
7284 scroll_position = snapshot.scroll_position();
7285 }
7286 });
7287
7288 let line_elements = self.prepaint_lines(
7289 start_row,
7290 &mut line_layouts,
7291 line_height,
7292 scroll_pixel_position,
7293 content_origin,
7294 window,
7295 cx,
7296 );
7297
7298 let mut block_start_rows = HashSet::default();
7299
7300 window.with_element_namespace("blocks", |window| {
7301 self.layout_blocks(
7302 &mut blocks,
7303 &mut block_start_rows,
7304 &hitbox,
7305 line_height,
7306 scroll_pixel_position,
7307 window,
7308 cx,
7309 );
7310 });
7311
7312 let cursors = self.collect_cursors(&snapshot, cx);
7313 let visible_row_range = start_row..end_row;
7314 let non_visible_cursors = cursors
7315 .iter()
7316 .any(|c| !visible_row_range.contains(&c.0.row()));
7317
7318 let visible_cursors = self.layout_visible_cursors(
7319 &snapshot,
7320 &selections,
7321 &block_start_rows,
7322 start_row..end_row,
7323 &line_layouts,
7324 &text_hitbox,
7325 content_origin,
7326 scroll_position,
7327 scroll_pixel_position,
7328 line_height,
7329 em_width,
7330 em_advance,
7331 autoscroll_containing_element,
7332 window,
7333 cx,
7334 );
7335
7336 let scrollbars_layout = self.layout_scrollbars(
7337 &snapshot,
7338 scrollbar_range_data,
7339 scroll_position,
7340 non_visible_cursors,
7341 window,
7342 cx,
7343 );
7344
7345 let gutter_settings = EditorSettings::get_global(cx).gutter;
7346
7347 let rows_with_hunk_bounds = display_hunks
7348 .iter()
7349 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7350 .fold(
7351 HashMap::default(),
7352 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7353 match hunk {
7354 DisplayDiffHunk::Folded { display_row } => {
7355 rows_with_hunk_bounds.insert(*display_row, bounds);
7356 }
7357 DisplayDiffHunk::Unfolded {
7358 display_row_range, ..
7359 } => {
7360 for display_row in display_row_range.iter_rows() {
7361 rows_with_hunk_bounds.insert(display_row, bounds);
7362 }
7363 }
7364 }
7365 rows_with_hunk_bounds
7366 },
7367 );
7368 let mut code_actions_indicator = None;
7369 if let Some(newest_selection_head) = newest_selection_head {
7370 let newest_selection_point =
7371 newest_selection_head.to_point(&snapshot.display_snapshot);
7372
7373 if (start_row..end_row).contains(&newest_selection_head.row()) {
7374 self.layout_cursor_popovers(
7375 line_height,
7376 &text_hitbox,
7377 content_origin,
7378 start_row,
7379 scroll_pixel_position,
7380 &line_layouts,
7381 newest_selection_head,
7382 newest_selection_point,
7383 &style,
7384 window,
7385 cx,
7386 );
7387
7388 let show_code_actions = snapshot
7389 .show_code_actions
7390 .unwrap_or(gutter_settings.code_actions);
7391 if show_code_actions {
7392 let newest_selection_point =
7393 newest_selection_head.to_point(&snapshot.display_snapshot);
7394 if !snapshot
7395 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7396 {
7397 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7398 MultiBufferRow(newest_selection_point.row),
7399 );
7400 if let Some((buffer, range)) = buffer {
7401 let buffer_id = buffer.remote_id();
7402 let row = range.start.row;
7403 let has_test_indicator = self
7404 .editor
7405 .read(cx)
7406 .tasks
7407 .contains_key(&(buffer_id, row));
7408
7409 if !has_test_indicator {
7410 code_actions_indicator = self
7411 .layout_code_actions_indicator(
7412 line_height,
7413 newest_selection_head,
7414 scroll_pixel_position,
7415 &gutter_dimensions,
7416 &gutter_hitbox,
7417 &rows_with_hunk_bounds,
7418 window,
7419 cx,
7420 );
7421 }
7422 }
7423 }
7424 }
7425 }
7426 }
7427
7428 self.layout_gutter_menu(
7429 line_height,
7430 &text_hitbox,
7431 content_origin,
7432 scroll_pixel_position,
7433 gutter_dimensions.width - gutter_dimensions.left_padding,
7434 window,
7435 cx,
7436 );
7437
7438 let test_indicators = if gutter_settings.runnables {
7439 self.layout_run_indicators(
7440 line_height,
7441 start_row..end_row,
7442 scroll_pixel_position,
7443 &gutter_dimensions,
7444 &gutter_hitbox,
7445 &rows_with_hunk_bounds,
7446 &snapshot,
7447 window,
7448 cx,
7449 )
7450 } else {
7451 Vec::new()
7452 };
7453
7454 self.layout_signature_help(
7455 &hitbox,
7456 content_origin,
7457 scroll_pixel_position,
7458 newest_selection_head,
7459 start_row,
7460 &line_layouts,
7461 line_height,
7462 em_width,
7463 window,
7464 cx,
7465 );
7466
7467 if !cx.has_active_drag() {
7468 self.layout_hover_popovers(
7469 &snapshot,
7470 &hitbox,
7471 &text_hitbox,
7472 start_row..end_row,
7473 content_origin,
7474 scroll_pixel_position,
7475 &line_layouts,
7476 line_height,
7477 em_width,
7478 window,
7479 cx,
7480 );
7481 }
7482
7483 let inline_completion_popover = self.layout_edit_prediction_popover(
7484 &text_hitbox.bounds,
7485 content_origin,
7486 &snapshot,
7487 start_row..end_row,
7488 scroll_position.y,
7489 scroll_position.y + height_in_lines,
7490 &line_layouts,
7491 line_height,
7492 scroll_pixel_position,
7493 newest_selection_head,
7494 editor_width,
7495 &style,
7496 window,
7497 cx,
7498 );
7499
7500 let mouse_context_menu = self.layout_mouse_context_menu(
7501 &snapshot,
7502 start_row..end_row,
7503 content_origin,
7504 window,
7505 cx,
7506 );
7507
7508 window.with_element_namespace("crease_toggles", |window| {
7509 self.prepaint_crease_toggles(
7510 &mut crease_toggles,
7511 line_height,
7512 &gutter_dimensions,
7513 gutter_settings,
7514 scroll_pixel_position,
7515 &gutter_hitbox,
7516 window,
7517 cx,
7518 )
7519 });
7520
7521 let invisible_symbol_font_size = font_size / 2.;
7522 let tab_invisible = window
7523 .text_system()
7524 .shape_line(
7525 "→".into(),
7526 invisible_symbol_font_size,
7527 &[TextRun {
7528 len: "→".len(),
7529 font: self.style.text.font(),
7530 color: cx.theme().colors().editor_invisible,
7531 background_color: None,
7532 underline: None,
7533 strikethrough: None,
7534 }],
7535 )
7536 .unwrap();
7537 let space_invisible = window
7538 .text_system()
7539 .shape_line(
7540 "•".into(),
7541 invisible_symbol_font_size,
7542 &[TextRun {
7543 len: "•".len(),
7544 font: self.style.text.font(),
7545 color: cx.theme().colors().editor_invisible,
7546 background_color: None,
7547 underline: None,
7548 strikethrough: None,
7549 }],
7550 )
7551 .unwrap();
7552
7553 let mode = snapshot.mode;
7554
7555 let position_map = Rc::new(PositionMap {
7556 size: bounds.size,
7557 visible_row_range,
7558 scroll_pixel_position,
7559 scroll_max,
7560 line_layouts,
7561 line_height,
7562 em_width,
7563 em_advance,
7564 snapshot,
7565 gutter_hitbox: gutter_hitbox.clone(),
7566 text_hitbox: text_hitbox.clone(),
7567 });
7568
7569 self.editor.update(cx, |editor, _| {
7570 editor.last_position_map = Some(position_map.clone())
7571 });
7572
7573 let hunk_controls = self.layout_diff_hunk_controls(
7574 start_row..end_row,
7575 &row_infos,
7576 &text_hitbox,
7577 &position_map,
7578 newest_selection_head,
7579 line_height,
7580 scroll_pixel_position,
7581 &display_hunks,
7582 self.editor.clone(),
7583 window,
7584 cx,
7585 );
7586
7587 EditorLayout {
7588 mode,
7589 position_map,
7590 visible_display_row_range: start_row..end_row,
7591 wrap_guides,
7592 indent_guides,
7593 hitbox,
7594 gutter_hitbox,
7595 display_hunks,
7596 content_origin,
7597 scrollbars_layout,
7598 active_rows,
7599 highlighted_rows,
7600 highlighted_ranges,
7601 highlighted_gutter_ranges,
7602 redacted_ranges,
7603 line_elements,
7604 line_numbers,
7605 blamed_display_rows,
7606 inline_blame,
7607 blocks,
7608 cursors,
7609 visible_cursors,
7610 selections,
7611 inline_completion_popover,
7612 diff_hunk_controls: hunk_controls,
7613 mouse_context_menu,
7614 test_indicators,
7615 code_actions_indicator,
7616 crease_toggles,
7617 crease_trailers,
7618 tab_invisible,
7619 space_invisible,
7620 sticky_buffer_header,
7621 }
7622 })
7623 })
7624 })
7625 }
7626
7627 fn paint(
7628 &mut self,
7629 _: Option<&GlobalElementId>,
7630 bounds: Bounds<gpui::Pixels>,
7631 _: &mut Self::RequestLayoutState,
7632 layout: &mut Self::PrepaintState,
7633 window: &mut Window,
7634 cx: &mut App,
7635 ) {
7636 let focus_handle = self.editor.focus_handle(cx);
7637 let key_context = self
7638 .editor
7639 .update(cx, |editor, cx| editor.key_context(window, cx));
7640
7641 window.set_key_context(key_context);
7642 window.handle_input(
7643 &focus_handle,
7644 ElementInputHandler::new(bounds, self.editor.clone()),
7645 cx,
7646 );
7647 self.register_actions(window, cx);
7648 self.register_key_listeners(window, cx, layout);
7649
7650 let text_style = TextStyleRefinement {
7651 font_size: Some(self.style.text.font_size),
7652 line_height: Some(self.style.text.line_height),
7653 ..Default::default()
7654 };
7655 let rem_size = self.rem_size(cx);
7656 window.with_rem_size(rem_size, |window| {
7657 window.with_text_style(Some(text_style), |window| {
7658 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7659 self.paint_mouse_listeners(layout, window, cx);
7660 self.paint_background(layout, window, cx);
7661 self.paint_indent_guides(layout, window, cx);
7662
7663 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7664 self.paint_blamed_display_rows(layout, window, cx);
7665 self.paint_line_numbers(layout, window, cx);
7666 }
7667
7668 self.paint_text(layout, window, cx);
7669
7670 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7671 self.paint_gutter_highlights(layout, window, cx);
7672 self.paint_gutter_indicators(layout, window, cx);
7673 }
7674
7675 if !layout.blocks.is_empty() {
7676 window.with_element_namespace("blocks", |window| {
7677 self.paint_blocks(layout, window, cx);
7678 });
7679 }
7680
7681 window.with_element_namespace("blocks", |window| {
7682 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7683 sticky_header.paint(window, cx)
7684 }
7685 });
7686
7687 self.paint_scrollbars(layout, window, cx);
7688 self.paint_inline_completion_popover(layout, window, cx);
7689 self.paint_mouse_context_menu(layout, window, cx);
7690 });
7691 })
7692 })
7693 }
7694}
7695
7696pub(super) fn gutter_bounds(
7697 editor_bounds: Bounds<Pixels>,
7698 gutter_dimensions: GutterDimensions,
7699) -> Bounds<Pixels> {
7700 Bounds {
7701 origin: editor_bounds.origin,
7702 size: size(gutter_dimensions.width, editor_bounds.size.height),
7703 }
7704}
7705
7706struct ScrollbarRangeData {
7707 scrollbar_bounds: Bounds<Pixels>,
7708 scroll_range: Bounds<Pixels>,
7709 letter_size: Size<Pixels>,
7710}
7711
7712impl ScrollbarRangeData {
7713 #[allow(clippy::too_many_arguments)]
7714 pub fn new(
7715 scrollbar_bounds: Bounds<Pixels>,
7716 letter_size: Size<Pixels>,
7717 snapshot: &EditorSnapshot,
7718 longest_line_width: Pixels,
7719 longest_line_blame_width: Pixels,
7720 style: &EditorStyle,
7721 editor_width: Pixels,
7722 cx: &mut App,
7723 ) -> ScrollbarRangeData {
7724 // TODO: Simplify this function down, it requires a lot of parameters
7725 let max_row = snapshot.max_point().row();
7726 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7727
7728 let settings = EditorSettings::get_global(cx);
7729 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7730 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7731 ScrollBeyondLastLine::Off => px(1.),
7732 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7733 };
7734
7735 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7736 letter_size.width + style.scrollbar_width
7737 } else {
7738 px(0.0)
7739 };
7740
7741 let overscroll = size(
7742 right_margin + longest_line_blame_width,
7743 letter_size.height * scroll_beyond_last_line,
7744 );
7745
7746 let scroll_range = Bounds {
7747 origin: scrollbar_bounds.origin,
7748 size: text_bounds_size + overscroll,
7749 };
7750
7751 ScrollbarRangeData {
7752 scrollbar_bounds,
7753 scroll_range,
7754 letter_size,
7755 }
7756 }
7757}
7758
7759impl IntoElement for EditorElement {
7760 type Element = Self;
7761
7762 fn into_element(self) -> Self::Element {
7763 self
7764 }
7765}
7766
7767pub struct EditorLayout {
7768 position_map: Rc<PositionMap>,
7769 hitbox: Hitbox,
7770 gutter_hitbox: Hitbox,
7771 content_origin: gpui::Point<Pixels>,
7772 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7773 mode: EditorMode,
7774 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7775 indent_guides: Option<Vec<IndentGuideLayout>>,
7776 visible_display_row_range: Range<DisplayRow>,
7777 active_rows: BTreeMap<DisplayRow, bool>,
7778 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7779 line_elements: SmallVec<[AnyElement; 1]>,
7780 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7781 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7782 blamed_display_rows: Option<Vec<AnyElement>>,
7783 inline_blame: Option<AnyElement>,
7784 blocks: Vec<BlockLayout>,
7785 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7786 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7787 redacted_ranges: Vec<Range<DisplayPoint>>,
7788 cursors: Vec<(DisplayPoint, Hsla)>,
7789 visible_cursors: Vec<CursorLayout>,
7790 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7791 code_actions_indicator: Option<AnyElement>,
7792 test_indicators: Vec<AnyElement>,
7793 crease_toggles: Vec<Option<AnyElement>>,
7794 diff_hunk_controls: Vec<AnyElement>,
7795 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7796 inline_completion_popover: Option<AnyElement>,
7797 mouse_context_menu: Option<AnyElement>,
7798 tab_invisible: ShapedLine,
7799 space_invisible: ShapedLine,
7800 sticky_buffer_header: Option<AnyElement>,
7801}
7802
7803impl EditorLayout {
7804 fn line_end_overshoot(&self) -> Pixels {
7805 0.15 * self.position_map.line_height
7806 }
7807}
7808
7809struct LineNumberLayout {
7810 shaped_line: ShapedLine,
7811 hitbox: Option<Hitbox>,
7812 display_row: DisplayRow,
7813}
7814
7815struct ColoredRange<T> {
7816 start: T,
7817 end: T,
7818 color: Hsla,
7819}
7820
7821#[derive(Clone)]
7822struct ScrollbarLayout {
7823 hitbox: Hitbox,
7824 visible_range: Range<f32>,
7825 visible: bool,
7826 text_unit_size: Pixels,
7827 thumb_size: Pixels,
7828 axis: Axis,
7829}
7830
7831impl ScrollbarLayout {
7832 const BORDER_WIDTH: Pixels = px(1.0);
7833 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7834 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7835 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7836
7837 fn thumb_bounds(&self) -> Bounds<Pixels> {
7838 match self.axis {
7839 Axis::Vertical => {
7840 let thumb_top = self.y_for_row(self.visible_range.start);
7841 let thumb_bottom = thumb_top + self.thumb_size;
7842 Bounds::from_corners(
7843 point(self.hitbox.left(), thumb_top),
7844 point(self.hitbox.right(), thumb_bottom),
7845 )
7846 }
7847 Axis::Horizontal => {
7848 let thumb_left =
7849 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7850 let thumb_right = thumb_left + self.thumb_size;
7851 Bounds::from_corners(
7852 point(thumb_left, self.hitbox.top()),
7853 point(thumb_right, self.hitbox.bottom()),
7854 )
7855 }
7856 }
7857 }
7858
7859 fn y_for_row(&self, row: f32) -> Pixels {
7860 self.hitbox.top() + row * self.text_unit_size
7861 }
7862
7863 fn marker_quads_for_ranges(
7864 &self,
7865 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7866 column: Option<usize>,
7867 ) -> Vec<PaintQuad> {
7868 struct MinMax {
7869 min: Pixels,
7870 max: Pixels,
7871 }
7872 let (x_range, height_limit) = if let Some(column) = column {
7873 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7874 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7875 let end = start + column_width;
7876 (
7877 Range { start, end },
7878 MinMax {
7879 min: Self::MIN_MARKER_HEIGHT,
7880 max: px(f32::MAX),
7881 },
7882 )
7883 } else {
7884 (
7885 Range {
7886 start: Self::BORDER_WIDTH,
7887 end: self.hitbox.size.width,
7888 },
7889 MinMax {
7890 min: Self::LINE_MARKER_HEIGHT,
7891 max: Self::LINE_MARKER_HEIGHT,
7892 },
7893 )
7894 };
7895
7896 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7897 let mut pixel_ranges = row_ranges
7898 .into_iter()
7899 .map(|range| {
7900 let start_y = row_to_y(range.start);
7901 let end_y = row_to_y(range.end)
7902 + self
7903 .text_unit_size
7904 .max(height_limit.min)
7905 .min(height_limit.max);
7906 ColoredRange {
7907 start: start_y,
7908 end: end_y,
7909 color: range.color,
7910 }
7911 })
7912 .peekable();
7913
7914 let mut quads = Vec::new();
7915 while let Some(mut pixel_range) = pixel_ranges.next() {
7916 while let Some(next_pixel_range) = pixel_ranges.peek() {
7917 if pixel_range.end >= next_pixel_range.start - px(1.0)
7918 && pixel_range.color == next_pixel_range.color
7919 {
7920 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7921 pixel_ranges.next();
7922 } else {
7923 break;
7924 }
7925 }
7926
7927 let bounds = Bounds::from_corners(
7928 point(x_range.start, pixel_range.start),
7929 point(x_range.end, pixel_range.end),
7930 );
7931 quads.push(quad(
7932 bounds,
7933 Corners::default(),
7934 pixel_range.color,
7935 Edges::default(),
7936 Hsla::transparent_black(),
7937 ));
7938 }
7939
7940 quads
7941 }
7942}
7943
7944struct CreaseTrailerLayout {
7945 element: AnyElement,
7946 bounds: Bounds<Pixels>,
7947}
7948
7949pub(crate) struct PositionMap {
7950 pub size: Size<Pixels>,
7951 pub line_height: Pixels,
7952 pub scroll_pixel_position: gpui::Point<Pixels>,
7953 pub scroll_max: gpui::Point<f32>,
7954 pub em_width: Pixels,
7955 pub em_advance: Pixels,
7956 pub visible_row_range: Range<DisplayRow>,
7957 pub line_layouts: Vec<LineWithInvisibles>,
7958 pub snapshot: EditorSnapshot,
7959 pub text_hitbox: Hitbox,
7960 pub gutter_hitbox: Hitbox,
7961}
7962
7963#[derive(Debug, Copy, Clone)]
7964pub struct PointForPosition {
7965 pub previous_valid: DisplayPoint,
7966 pub next_valid: DisplayPoint,
7967 pub exact_unclipped: DisplayPoint,
7968 pub column_overshoot_after_line_end: u32,
7969}
7970
7971impl PointForPosition {
7972 pub fn as_valid(&self) -> Option<DisplayPoint> {
7973 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7974 Some(self.previous_valid)
7975 } else {
7976 None
7977 }
7978 }
7979}
7980
7981impl PositionMap {
7982 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7983 let text_bounds = self.text_hitbox.bounds;
7984 let scroll_position = self.snapshot.scroll_position();
7985 let position = position - text_bounds.origin;
7986 let y = position.y.max(px(0.)).min(self.size.height);
7987 let x = position.x + (scroll_position.x * self.em_width);
7988 let row = ((y / self.line_height) + scroll_position.y) as u32;
7989
7990 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7991 .line_layouts
7992 .get(row as usize - scroll_position.y as usize)
7993 {
7994 if let Some(ix) = line.index_for_x(x) {
7995 (ix as u32, px(0.))
7996 } else {
7997 (line.len as u32, px(0.).max(x - line.width))
7998 }
7999 } else {
8000 (0, x)
8001 };
8002
8003 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8004 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8005 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8006
8007 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8008 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8009 PointForPosition {
8010 previous_valid,
8011 next_valid,
8012 exact_unclipped,
8013 column_overshoot_after_line_end,
8014 }
8015 }
8016}
8017
8018struct BlockLayout {
8019 id: BlockId,
8020 row: Option<DisplayRow>,
8021 element: AnyElement,
8022 available_space: Size<AvailableSpace>,
8023 style: BlockStyle,
8024}
8025
8026fn layout_line(
8027 row: DisplayRow,
8028 snapshot: &EditorSnapshot,
8029 style: &EditorStyle,
8030 text_width: Pixels,
8031 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8032 window: &mut Window,
8033 cx: &mut App,
8034) -> LineWithInvisibles {
8035 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8036 LineWithInvisibles::from_chunks(
8037 chunks,
8038 &style,
8039 MAX_LINE_LEN,
8040 1,
8041 snapshot.mode,
8042 text_width,
8043 is_row_soft_wrapped,
8044 window,
8045 cx,
8046 )
8047 .pop()
8048 .unwrap()
8049}
8050
8051#[derive(Debug)]
8052pub struct IndentGuideLayout {
8053 origin: gpui::Point<Pixels>,
8054 length: Pixels,
8055 single_indent_width: Pixels,
8056 depth: u32,
8057 active: bool,
8058 settings: IndentGuideSettings,
8059}
8060
8061pub struct CursorLayout {
8062 origin: gpui::Point<Pixels>,
8063 block_width: Pixels,
8064 line_height: Pixels,
8065 color: Hsla,
8066 shape: CursorShape,
8067 block_text: Option<ShapedLine>,
8068 cursor_name: Option<AnyElement>,
8069}
8070
8071#[derive(Debug)]
8072pub struct CursorName {
8073 string: SharedString,
8074 color: Hsla,
8075 is_top_row: bool,
8076}
8077
8078impl CursorLayout {
8079 pub fn new(
8080 origin: gpui::Point<Pixels>,
8081 block_width: Pixels,
8082 line_height: Pixels,
8083 color: Hsla,
8084 shape: CursorShape,
8085 block_text: Option<ShapedLine>,
8086 ) -> CursorLayout {
8087 CursorLayout {
8088 origin,
8089 block_width,
8090 line_height,
8091 color,
8092 shape,
8093 block_text,
8094 cursor_name: None,
8095 }
8096 }
8097
8098 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8099 Bounds {
8100 origin: self.origin + origin,
8101 size: size(self.block_width, self.line_height),
8102 }
8103 }
8104
8105 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8106 match self.shape {
8107 CursorShape::Bar => Bounds {
8108 origin: self.origin + origin,
8109 size: size(px(2.0), self.line_height),
8110 },
8111 CursorShape::Block | CursorShape::Hollow => Bounds {
8112 origin: self.origin + origin,
8113 size: size(self.block_width, self.line_height),
8114 },
8115 CursorShape::Underline => Bounds {
8116 origin: self.origin
8117 + origin
8118 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8119 size: size(self.block_width, px(2.0)),
8120 },
8121 }
8122 }
8123
8124 pub fn layout(
8125 &mut self,
8126 origin: gpui::Point<Pixels>,
8127 cursor_name: Option<CursorName>,
8128 window: &mut Window,
8129 cx: &mut App,
8130 ) {
8131 if let Some(cursor_name) = cursor_name {
8132 let bounds = self.bounds(origin);
8133 let text_size = self.line_height / 1.5;
8134
8135 let name_origin = if cursor_name.is_top_row {
8136 point(bounds.right() - px(1.), bounds.top())
8137 } else {
8138 match self.shape {
8139 CursorShape::Bar => point(
8140 bounds.right() - px(2.),
8141 bounds.top() - text_size / 2. - px(1.),
8142 ),
8143 _ => point(
8144 bounds.right() - px(1.),
8145 bounds.top() - text_size / 2. - px(1.),
8146 ),
8147 }
8148 };
8149 let mut name_element = div()
8150 .bg(self.color)
8151 .text_size(text_size)
8152 .px_0p5()
8153 .line_height(text_size + px(2.))
8154 .text_color(cursor_name.color)
8155 .child(cursor_name.string.clone())
8156 .into_any_element();
8157
8158 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8159
8160 self.cursor_name = Some(name_element);
8161 }
8162 }
8163
8164 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8165 let bounds = self.bounds(origin);
8166
8167 //Draw background or border quad
8168 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8169 outline(bounds, self.color)
8170 } else {
8171 fill(bounds, self.color)
8172 };
8173
8174 if let Some(name) = &mut self.cursor_name {
8175 name.paint(window, cx);
8176 }
8177
8178 window.paint_quad(cursor);
8179
8180 if let Some(block_text) = &self.block_text {
8181 block_text
8182 .paint(self.origin + origin, self.line_height, window, cx)
8183 .log_err();
8184 }
8185 }
8186
8187 pub fn shape(&self) -> CursorShape {
8188 self.shape
8189 }
8190}
8191
8192#[derive(Debug)]
8193pub struct HighlightedRange {
8194 pub start_y: Pixels,
8195 pub line_height: Pixels,
8196 pub lines: Vec<HighlightedRangeLine>,
8197 pub color: Hsla,
8198 pub corner_radius: Pixels,
8199}
8200
8201#[derive(Debug)]
8202pub struct HighlightedRangeLine {
8203 pub start_x: Pixels,
8204 pub end_x: Pixels,
8205}
8206
8207impl HighlightedRange {
8208 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8209 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8210 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8211 self.paint_lines(
8212 self.start_y + self.line_height,
8213 &self.lines[1..],
8214 bounds,
8215 window,
8216 );
8217 } else {
8218 self.paint_lines(self.start_y, &self.lines, bounds, window);
8219 }
8220 }
8221
8222 fn paint_lines(
8223 &self,
8224 start_y: Pixels,
8225 lines: &[HighlightedRangeLine],
8226 _bounds: Bounds<Pixels>,
8227 window: &mut Window,
8228 ) {
8229 if lines.is_empty() {
8230 return;
8231 }
8232
8233 let first_line = lines.first().unwrap();
8234 let last_line = lines.last().unwrap();
8235
8236 let first_top_left = point(first_line.start_x, start_y);
8237 let first_top_right = point(first_line.end_x, start_y);
8238
8239 let curve_height = point(Pixels::ZERO, self.corner_radius);
8240 let curve_width = |start_x: Pixels, end_x: Pixels| {
8241 let max = (end_x - start_x) / 2.;
8242 let width = if max < self.corner_radius {
8243 max
8244 } else {
8245 self.corner_radius
8246 };
8247
8248 point(width, Pixels::ZERO)
8249 };
8250
8251 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8252 let mut builder = gpui::PathBuilder::fill();
8253 builder.move_to(first_top_right - top_curve_width);
8254 builder.curve_to(first_top_right + curve_height, first_top_right);
8255
8256 let mut iter = lines.iter().enumerate().peekable();
8257 while let Some((ix, line)) = iter.next() {
8258 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8259
8260 if let Some((_, next_line)) = iter.peek() {
8261 let next_top_right = point(next_line.end_x, bottom_right.y);
8262
8263 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8264 Ordering::Equal => {
8265 builder.line_to(bottom_right);
8266 }
8267 Ordering::Less => {
8268 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8269 builder.line_to(bottom_right - curve_height);
8270 if self.corner_radius > Pixels::ZERO {
8271 builder.curve_to(bottom_right - curve_width, bottom_right);
8272 }
8273 builder.line_to(next_top_right + curve_width);
8274 if self.corner_radius > Pixels::ZERO {
8275 builder.curve_to(next_top_right + curve_height, next_top_right);
8276 }
8277 }
8278 Ordering::Greater => {
8279 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8280 builder.line_to(bottom_right - curve_height);
8281 if self.corner_radius > Pixels::ZERO {
8282 builder.curve_to(bottom_right + curve_width, bottom_right);
8283 }
8284 builder.line_to(next_top_right - curve_width);
8285 if self.corner_radius > Pixels::ZERO {
8286 builder.curve_to(next_top_right + curve_height, next_top_right);
8287 }
8288 }
8289 }
8290 } else {
8291 let curve_width = curve_width(line.start_x, line.end_x);
8292 builder.line_to(bottom_right - curve_height);
8293 if self.corner_radius > Pixels::ZERO {
8294 builder.curve_to(bottom_right - curve_width, bottom_right);
8295 }
8296
8297 let bottom_left = point(line.start_x, bottom_right.y);
8298 builder.line_to(bottom_left + curve_width);
8299 if self.corner_radius > Pixels::ZERO {
8300 builder.curve_to(bottom_left - curve_height, bottom_left);
8301 }
8302 }
8303 }
8304
8305 if first_line.start_x > last_line.start_x {
8306 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8307 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8308 builder.line_to(second_top_left + curve_height);
8309 if self.corner_radius > Pixels::ZERO {
8310 builder.curve_to(second_top_left + curve_width, second_top_left);
8311 }
8312 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8313 builder.line_to(first_bottom_left - curve_width);
8314 if self.corner_radius > Pixels::ZERO {
8315 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8316 }
8317 }
8318
8319 builder.line_to(first_top_left + curve_height);
8320 if self.corner_radius > Pixels::ZERO {
8321 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8322 }
8323 builder.line_to(first_top_right - top_curve_width);
8324
8325 if let Ok(path) = builder.build() {
8326 window.paint_path(path, self.color);
8327 }
8328 }
8329}
8330
8331enum CursorPopoverType {
8332 CodeContextMenu,
8333 EditPrediction,
8334}
8335
8336pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8337 (delta.pow(1.5) / 100.0).into()
8338}
8339
8340fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8341 (delta.pow(1.2) / 300.0).into()
8342}
8343
8344pub fn register_action<T: Action>(
8345 editor: &Entity<Editor>,
8346 window: &mut Window,
8347 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8348) {
8349 let editor = editor.clone();
8350 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8351 let action = action.downcast_ref().unwrap();
8352 if phase == DispatchPhase::Bubble {
8353 editor.update(cx, |editor, cx| {
8354 listener(editor, action, window, cx);
8355 })
8356 }
8357 })
8358}
8359
8360fn compute_auto_height_layout(
8361 editor: &mut Editor,
8362 max_lines: usize,
8363 max_line_number_width: Pixels,
8364 known_dimensions: Size<Option<Pixels>>,
8365 available_width: AvailableSpace,
8366 window: &mut Window,
8367 cx: &mut Context<Editor>,
8368) -> Option<Size<Pixels>> {
8369 let width = known_dimensions.width.or({
8370 if let AvailableSpace::Definite(available_width) = available_width {
8371 Some(available_width)
8372 } else {
8373 None
8374 }
8375 })?;
8376 if let Some(height) = known_dimensions.height {
8377 return Some(size(width, height));
8378 }
8379
8380 let style = editor.style.as_ref().unwrap();
8381 let font_id = window.text_system().resolve_font(&style.text.font());
8382 let font_size = style.text.font_size.to_pixels(window.rem_size());
8383 let line_height = style.text.line_height_in_pixels(window.rem_size());
8384 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8385
8386 let mut snapshot = editor.snapshot(window, cx);
8387 let gutter_dimensions = snapshot
8388 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8389 .unwrap_or_default();
8390
8391 editor.gutter_dimensions = gutter_dimensions;
8392 let text_width = width - gutter_dimensions.width;
8393 let overscroll = size(em_width, px(0.));
8394
8395 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8396 if editor.set_wrap_width(Some(editor_width), cx) {
8397 snapshot = editor.snapshot(window, cx);
8398 }
8399
8400 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8401 let height = scroll_height
8402 .max(line_height)
8403 .min(line_height * max_lines as f32);
8404
8405 Some(size(width, height))
8406}
8407
8408#[cfg(test)]
8409mod tests {
8410 use super::*;
8411 use crate::{
8412 display_map::{BlockPlacement, BlockProperties},
8413 editor_tests::{init_test, update_test_language_settings},
8414 Editor, MultiBuffer,
8415 };
8416 use gpui::{TestAppContext, VisualTestContext};
8417 use language::language_settings;
8418 use log::info;
8419 use similar::DiffableStr;
8420 use std::num::NonZeroU32;
8421 use util::test::sample_text;
8422
8423 #[gpui::test]
8424 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8425 init_test(cx, |_| {});
8426 let window = cx.add_window(|window, cx| {
8427 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8428 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8429 });
8430
8431 let editor = window.root(cx).unwrap();
8432 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8433 let line_height = window
8434 .update(cx, |_, window, _| {
8435 style.text.line_height_in_pixels(window.rem_size())
8436 })
8437 .unwrap();
8438 let element = EditorElement::new(&editor, style);
8439 let snapshot = window
8440 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8441 .unwrap();
8442
8443 let layouts = cx
8444 .update_window(*window, |_, window, cx| {
8445 element.layout_line_numbers(
8446 None,
8447 GutterDimensions {
8448 left_padding: Pixels::ZERO,
8449 right_padding: Pixels::ZERO,
8450 width: px(30.0),
8451 margin: Pixels::ZERO,
8452 git_blame_entries_width: None,
8453 },
8454 line_height,
8455 gpui::Point::default(),
8456 DisplayRow(0)..DisplayRow(6),
8457 &(0..6)
8458 .map(|row| RowInfo {
8459 buffer_row: Some(row),
8460 ..Default::default()
8461 })
8462 .collect::<Vec<_>>(),
8463 Some(DisplayPoint::new(DisplayRow(0), 0)),
8464 &snapshot,
8465 window,
8466 cx,
8467 )
8468 })
8469 .unwrap();
8470 assert_eq!(layouts.len(), 6);
8471
8472 let relative_rows = window
8473 .update(cx, |editor, window, cx| {
8474 let snapshot = editor.snapshot(window, cx);
8475 element.calculate_relative_line_numbers(
8476 &snapshot,
8477 &(DisplayRow(0)..DisplayRow(6)),
8478 Some(DisplayRow(3)),
8479 )
8480 })
8481 .unwrap();
8482 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8483 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8484 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8485 // current line has no relative number
8486 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8487 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8488
8489 // works if cursor is before screen
8490 let relative_rows = window
8491 .update(cx, |editor, window, cx| {
8492 let snapshot = editor.snapshot(window, cx);
8493 element.calculate_relative_line_numbers(
8494 &snapshot,
8495 &(DisplayRow(3)..DisplayRow(6)),
8496 Some(DisplayRow(1)),
8497 )
8498 })
8499 .unwrap();
8500 assert_eq!(relative_rows.len(), 3);
8501 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8502 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8503 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8504
8505 // works if cursor is after screen
8506 let relative_rows = window
8507 .update(cx, |editor, window, cx| {
8508 let snapshot = editor.snapshot(window, cx);
8509 element.calculate_relative_line_numbers(
8510 &snapshot,
8511 &(DisplayRow(0)..DisplayRow(3)),
8512 Some(DisplayRow(6)),
8513 )
8514 })
8515 .unwrap();
8516 assert_eq!(relative_rows.len(), 3);
8517 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8518 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8519 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8520 }
8521
8522 #[gpui::test]
8523 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8524 init_test(cx, |_| {});
8525
8526 let window = cx.add_window(|window, cx| {
8527 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8528 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8529 });
8530 let cx = &mut VisualTestContext::from_window(*window, cx);
8531 let editor = window.root(cx).unwrap();
8532 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8533
8534 window
8535 .update(cx, |editor, window, cx| {
8536 editor.cursor_shape = CursorShape::Block;
8537 editor.change_selections(None, window, cx, |s| {
8538 s.select_ranges([
8539 Point::new(0, 0)..Point::new(1, 0),
8540 Point::new(3, 2)..Point::new(3, 3),
8541 Point::new(5, 6)..Point::new(6, 0),
8542 ]);
8543 });
8544 })
8545 .unwrap();
8546
8547 let (_, state) = cx.draw(
8548 point(px(500.), px(500.)),
8549 size(px(500.), px(500.)),
8550 |_, _| EditorElement::new(&editor, style),
8551 );
8552
8553 assert_eq!(state.selections.len(), 1);
8554 let local_selections = &state.selections[0].1;
8555 assert_eq!(local_selections.len(), 3);
8556 // moves cursor back one line
8557 assert_eq!(
8558 local_selections[0].head,
8559 DisplayPoint::new(DisplayRow(0), 6)
8560 );
8561 assert_eq!(
8562 local_selections[0].range,
8563 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8564 );
8565
8566 // moves cursor back one column
8567 assert_eq!(
8568 local_selections[1].range,
8569 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8570 );
8571 assert_eq!(
8572 local_selections[1].head,
8573 DisplayPoint::new(DisplayRow(3), 2)
8574 );
8575
8576 // leaves cursor on the max point
8577 assert_eq!(
8578 local_selections[2].range,
8579 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8580 );
8581 assert_eq!(
8582 local_selections[2].head,
8583 DisplayPoint::new(DisplayRow(6), 0)
8584 );
8585
8586 // active lines does not include 1 (even though the range of the selection does)
8587 assert_eq!(
8588 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8589 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8590 );
8591
8592 // multi-buffer support
8593 // in DisplayPoint coordinates, this is what we're dealing with:
8594 // 0: [[file
8595 // 1: header
8596 // 2: section]]
8597 // 3: aaaaaa
8598 // 4: bbbbbb
8599 // 5: cccccc
8600 // 6:
8601 // 7: [[footer]]
8602 // 8: [[header]]
8603 // 9: ffffff
8604 // 10: gggggg
8605 // 11: hhhhhh
8606 // 12:
8607 // 13: [[footer]]
8608 // 14: [[file
8609 // 15: header
8610 // 16: section]]
8611 // 17: bbbbbb
8612 // 18: cccccc
8613 // 19: dddddd
8614 // 20: [[footer]]
8615 let window = cx.add_window(|window, cx| {
8616 let buffer = MultiBuffer::build_multi(
8617 [
8618 (
8619 &(sample_text(8, 6, 'a') + "\n"),
8620 vec![
8621 Point::new(0, 0)..Point::new(3, 0),
8622 Point::new(4, 0)..Point::new(7, 0),
8623 ],
8624 ),
8625 (
8626 &(sample_text(8, 6, 'a') + "\n"),
8627 vec![Point::new(1, 0)..Point::new(3, 0)],
8628 ),
8629 ],
8630 cx,
8631 );
8632 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8633 });
8634 let editor = window.root(cx).unwrap();
8635 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8636 let _state = window.update(cx, |editor, window, cx| {
8637 editor.cursor_shape = CursorShape::Block;
8638 editor.change_selections(None, window, cx, |s| {
8639 s.select_display_ranges([
8640 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8641 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8642 ]);
8643 });
8644 });
8645
8646 let (_, state) = cx.draw(
8647 point(px(500.), px(500.)),
8648 size(px(500.), px(500.)),
8649 |_, _| EditorElement::new(&editor, style),
8650 );
8651 assert_eq!(state.selections.len(), 1);
8652 let local_selections = &state.selections[0].1;
8653 assert_eq!(local_selections.len(), 2);
8654
8655 // moves cursor on excerpt boundary back a line
8656 // and doesn't allow selection to bleed through
8657 assert_eq!(
8658 local_selections[0].range,
8659 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8660 );
8661 assert_eq!(
8662 local_selections[0].head,
8663 DisplayPoint::new(DisplayRow(6), 0)
8664 );
8665 // moves cursor on buffer boundary back two lines
8666 // and doesn't allow selection to bleed through
8667 assert_eq!(
8668 local_selections[1].range,
8669 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8670 );
8671 assert_eq!(
8672 local_selections[1].head,
8673 DisplayPoint::new(DisplayRow(12), 0)
8674 );
8675 }
8676
8677 #[gpui::test]
8678 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8679 init_test(cx, |_| {});
8680
8681 let window = cx.add_window(|window, cx| {
8682 let buffer = MultiBuffer::build_simple("", cx);
8683 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8684 });
8685 let cx = &mut VisualTestContext::from_window(*window, cx);
8686 let editor = window.root(cx).unwrap();
8687 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8688 window
8689 .update(cx, |editor, window, cx| {
8690 editor.set_placeholder_text("hello", cx);
8691 editor.insert_blocks(
8692 [BlockProperties {
8693 style: BlockStyle::Fixed,
8694 placement: BlockPlacement::Above(Anchor::min()),
8695 height: 3,
8696 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8697 priority: 0,
8698 }],
8699 None,
8700 cx,
8701 );
8702
8703 // Blur the editor so that it displays placeholder text.
8704 window.blur();
8705 })
8706 .unwrap();
8707
8708 let (_, state) = cx.draw(
8709 point(px(500.), px(500.)),
8710 size(px(500.), px(500.)),
8711 |_, _| EditorElement::new(&editor, style),
8712 );
8713 assert_eq!(state.position_map.line_layouts.len(), 4);
8714 assert_eq!(state.line_numbers.len(), 1);
8715 assert_eq!(
8716 state
8717 .line_numbers
8718 .get(&MultiBufferRow(0))
8719 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8720 Some("1")
8721 );
8722 }
8723
8724 #[gpui::test]
8725 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8726 const TAB_SIZE: u32 = 4;
8727
8728 let input_text = "\t \t|\t| a b";
8729 let expected_invisibles = vec![
8730 Invisible::Tab {
8731 line_start_offset: 0,
8732 line_end_offset: TAB_SIZE as usize,
8733 },
8734 Invisible::Whitespace {
8735 line_offset: TAB_SIZE as usize,
8736 },
8737 Invisible::Tab {
8738 line_start_offset: TAB_SIZE as usize + 1,
8739 line_end_offset: TAB_SIZE as usize * 2,
8740 },
8741 Invisible::Tab {
8742 line_start_offset: TAB_SIZE as usize * 2 + 1,
8743 line_end_offset: TAB_SIZE as usize * 3,
8744 },
8745 Invisible::Whitespace {
8746 line_offset: TAB_SIZE as usize * 3 + 1,
8747 },
8748 Invisible::Whitespace {
8749 line_offset: TAB_SIZE as usize * 3 + 3,
8750 },
8751 ];
8752 assert_eq!(
8753 expected_invisibles.len(),
8754 input_text
8755 .chars()
8756 .filter(|initial_char| initial_char.is_whitespace())
8757 .count(),
8758 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8759 );
8760
8761 for show_line_numbers in [true, false] {
8762 init_test(cx, |s| {
8763 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8764 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8765 });
8766
8767 let actual_invisibles = collect_invisibles_from_new_editor(
8768 cx,
8769 EditorMode::Full,
8770 input_text,
8771 px(500.0),
8772 show_line_numbers,
8773 );
8774
8775 assert_eq!(expected_invisibles, actual_invisibles);
8776 }
8777 }
8778
8779 #[gpui::test]
8780 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8781 init_test(cx, |s| {
8782 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8783 s.defaults.tab_size = NonZeroU32::new(4);
8784 });
8785
8786 for editor_mode_without_invisibles in [
8787 EditorMode::SingleLine { auto_width: false },
8788 EditorMode::AutoHeight { max_lines: 100 },
8789 ] {
8790 for show_line_numbers in [true, false] {
8791 let invisibles = collect_invisibles_from_new_editor(
8792 cx,
8793 editor_mode_without_invisibles,
8794 "\t\t\t| | a b",
8795 px(500.0),
8796 show_line_numbers,
8797 );
8798 assert!(invisibles.is_empty(),
8799 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8800 }
8801 }
8802 }
8803
8804 #[gpui::test]
8805 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8806 let tab_size = 4;
8807 let input_text = "a\tbcd ".repeat(9);
8808 let repeated_invisibles = [
8809 Invisible::Tab {
8810 line_start_offset: 1,
8811 line_end_offset: tab_size as usize,
8812 },
8813 Invisible::Whitespace {
8814 line_offset: tab_size as usize + 3,
8815 },
8816 Invisible::Whitespace {
8817 line_offset: tab_size as usize + 4,
8818 },
8819 Invisible::Whitespace {
8820 line_offset: tab_size as usize + 5,
8821 },
8822 Invisible::Whitespace {
8823 line_offset: tab_size as usize + 6,
8824 },
8825 Invisible::Whitespace {
8826 line_offset: tab_size as usize + 7,
8827 },
8828 ];
8829 let expected_invisibles = std::iter::once(repeated_invisibles)
8830 .cycle()
8831 .take(9)
8832 .flatten()
8833 .collect::<Vec<_>>();
8834 assert_eq!(
8835 expected_invisibles.len(),
8836 input_text
8837 .chars()
8838 .filter(|initial_char| initial_char.is_whitespace())
8839 .count(),
8840 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8841 );
8842 info!("Expected invisibles: {expected_invisibles:?}");
8843
8844 init_test(cx, |_| {});
8845
8846 // Put the same string with repeating whitespace pattern into editors of various size,
8847 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8848 let resize_step = 10.0;
8849 let mut editor_width = 200.0;
8850 while editor_width <= 1000.0 {
8851 for show_line_numbers in [true, false] {
8852 update_test_language_settings(cx, |s| {
8853 s.defaults.tab_size = NonZeroU32::new(tab_size);
8854 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8855 s.defaults.preferred_line_length = Some(editor_width as u32);
8856 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8857 });
8858
8859 let actual_invisibles = collect_invisibles_from_new_editor(
8860 cx,
8861 EditorMode::Full,
8862 &input_text,
8863 px(editor_width),
8864 show_line_numbers,
8865 );
8866
8867 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8868 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8869 let mut i = 0;
8870 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8871 i = actual_index;
8872 match expected_invisibles.get(i) {
8873 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8874 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8875 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8876 _ => {
8877 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8878 }
8879 },
8880 None => {
8881 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8882 }
8883 }
8884 }
8885 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8886 assert!(
8887 missing_expected_invisibles.is_empty(),
8888 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8889 );
8890
8891 editor_width += resize_step;
8892 }
8893 }
8894 }
8895
8896 fn collect_invisibles_from_new_editor(
8897 cx: &mut TestAppContext,
8898 editor_mode: EditorMode,
8899 input_text: &str,
8900 editor_width: Pixels,
8901 show_line_numbers: bool,
8902 ) -> Vec<Invisible> {
8903 info!(
8904 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8905 editor_width.0
8906 );
8907 let window = cx.add_window(|window, cx| {
8908 let buffer = MultiBuffer::build_simple(input_text, cx);
8909 Editor::new(editor_mode, buffer, None, true, window, cx)
8910 });
8911 let cx = &mut VisualTestContext::from_window(*window, cx);
8912 let editor = window.root(cx).unwrap();
8913
8914 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8915 window
8916 .update(cx, |editor, _, cx| {
8917 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8918 editor.set_wrap_width(Some(editor_width), cx);
8919 editor.set_show_line_numbers(show_line_numbers, cx);
8920 })
8921 .unwrap();
8922 let (_, state) = cx.draw(
8923 point(px(500.), px(500.)),
8924 size(px(500.), px(500.)),
8925 |_, _| EditorElement::new(&editor, style),
8926 );
8927 state
8928 .position_map
8929 .line_layouts
8930 .iter()
8931 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8932 .cloned()
8933 .collect()
8934 }
8935}
8936
8937fn diff_hunk_controls(
8938 row: u32,
8939 hunk_range: Range<Anchor>,
8940 line_height: Pixels,
8941 editor: &Entity<Editor>,
8942 cx: &mut App,
8943) -> AnyElement {
8944 h_flex()
8945 .h(line_height)
8946 .mr_1()
8947 .gap_1()
8948 .px_1()
8949 .pb_1()
8950 .border_b_1()
8951 .border_color(cx.theme().colors().border_variant)
8952 .rounded_b_lg()
8953 .bg(cx.theme().colors().editor_background)
8954 .gap_1()
8955 .child(
8956 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8957 .shape(IconButtonShape::Square)
8958 .icon_size(IconSize::Small)
8959 // .disabled(!has_multiple_hunks)
8960 .tooltip({
8961 let focus_handle = editor.focus_handle(cx);
8962 move |window, cx| {
8963 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8964 }
8965 })
8966 .on_click({
8967 let editor = editor.clone();
8968 move |_event, window, cx| {
8969 editor.update(cx, |editor, cx| {
8970 let snapshot = editor.snapshot(window, cx);
8971 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8972 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8973 editor.expand_selected_diff_hunks(cx);
8974 });
8975 }
8976 }),
8977 )
8978 .child(
8979 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8980 .shape(IconButtonShape::Square)
8981 .icon_size(IconSize::Small)
8982 // .disabled(!has_multiple_hunks)
8983 .tooltip({
8984 let focus_handle = editor.focus_handle(cx);
8985 move |window, cx| {
8986 Tooltip::for_action_in(
8987 "Previous Hunk",
8988 &GoToPrevHunk,
8989 &focus_handle,
8990 window,
8991 cx,
8992 )
8993 }
8994 })
8995 .on_click({
8996 let editor = editor.clone();
8997 move |_event, window, cx| {
8998 editor.update(cx, |editor, cx| {
8999 let snapshot = editor.snapshot(window, cx);
9000 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9001 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
9002 editor.expand_selected_diff_hunks(cx);
9003 });
9004 }
9005 }),
9006 )
9007 .child(
9008 IconButton::new("discard", IconName::Undo)
9009 .shape(IconButtonShape::Square)
9010 .icon_size(IconSize::Small)
9011 .tooltip({
9012 let focus_handle = editor.focus_handle(cx);
9013 move |window, cx| {
9014 Tooltip::for_action_in(
9015 "Discard Hunk",
9016 &RevertSelectedHunks,
9017 &focus_handle,
9018 window,
9019 cx,
9020 )
9021 }
9022 })
9023 .on_click({
9024 let editor = editor.clone();
9025 move |_event, window, cx| {
9026 editor.update(cx, |editor, cx| {
9027 let snapshot = editor.snapshot(window, cx);
9028 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9029 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
9030 });
9031 }
9032 }),
9033 )
9034 .into_any_element()
9035}