1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlineCompletion,
22 JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RevertSelectedHunks, RowExt,
23 RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap, StickyHeaderExcerpt,
24 ToPoint, ToggleFold, ToggleStagedSelectedDiffHunks, 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, FontId,
38 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, 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 // If the max height won't fit below and there is more space above, put it above the line.
3338 let bottom_y_when_flipped = target_position.y - line_height;
3339 let available_above = bottom_y_when_flipped - text_hitbox.top();
3340 let available_below = text_hitbox.bottom() - target_position.y;
3341 let y_overflows_below = max_height > available_below;
3342 let mut y_flipped = y_overflows_below && available_above > available_below;
3343 let mut height = cmp::min(
3344 max_height,
3345 if y_flipped {
3346 available_above
3347 } else {
3348 available_below
3349 },
3350 );
3351
3352 // If the min height doesn't fit within text bounds, instead fit within the window.
3353 if height < min_height {
3354 let available_above = bottom_y_when_flipped;
3355 let available_below = viewport_bounds.bottom() - target_position.y;
3356 if available_below > min_height {
3357 y_flipped = false;
3358 height = min_height;
3359 } else if available_above > min_height {
3360 y_flipped = true;
3361 height = min_height;
3362 } else if available_above > available_below {
3363 y_flipped = true;
3364 height = available_above;
3365 } else {
3366 y_flipped = false;
3367 height = available_below;
3368 }
3369 }
3370
3371 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3372
3373 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3374 // for very narrow windows.
3375 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3376 if popovers.is_empty() {
3377 return None;
3378 }
3379
3380 let max_width = popovers
3381 .iter()
3382 .map(|(_, _, size)| size.width)
3383 .max()
3384 .unwrap_or_default();
3385
3386 let mut current_position = gpui::Point {
3387 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3388 // overflow. Include space for the scrollbar.
3389 x: target_position
3390 .x
3391 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3392 y: if y_flipped {
3393 bottom_y_when_flipped
3394 } else {
3395 target_position.y
3396 },
3397 };
3398
3399 let mut laid_out_popovers = popovers
3400 .into_iter()
3401 .map(|(popover_type, element, size)| {
3402 if y_flipped {
3403 current_position.y -= size.height;
3404 }
3405 let position = current_position;
3406 window.defer_draw(element, current_position, 1);
3407 if !y_flipped {
3408 current_position.y += size.height + MENU_GAP;
3409 } else {
3410 current_position.y -= MENU_GAP;
3411 }
3412 (popover_type, Bounds::new(position, size))
3413 })
3414 .collect::<Vec<_>>();
3415
3416 if y_flipped {
3417 laid_out_popovers.reverse();
3418 }
3419
3420 Some((laid_out_popovers, y_flipped))
3421 }
3422
3423 #[allow(clippy::too_many_arguments)]
3424 fn layout_context_menu_aside(
3425 &self,
3426 y_flipped: bool,
3427 menu_bounds: Bounds<Pixels>,
3428 target_bounds: Bounds<Pixels>,
3429 max_target_bounds: Bounds<Pixels>,
3430 max_height: Pixels,
3431 must_place_above_or_below: bool,
3432 text_hitbox: &Hitbox,
3433 viewport_bounds: Bounds<Pixels>,
3434 window: &mut Window,
3435 cx: &mut App,
3436 ) {
3437 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3438 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3439 && !must_place_above_or_below
3440 {
3441 let max_width = cmp::min(
3442 available_within_viewport.right - px(1.),
3443 MENU_ASIDE_MAX_WIDTH,
3444 );
3445 let Some(mut aside) = self.render_context_menu_aside(
3446 size(max_width, max_height - POPOVER_Y_PADDING),
3447 window,
3448 cx,
3449 ) else {
3450 return;
3451 };
3452 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3453 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3454 Some((aside, right_position))
3455 } else {
3456 let max_size = size(
3457 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3458 // won't be needed here.
3459 cmp::min(
3460 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3461 viewport_bounds.right(),
3462 ),
3463 cmp::min(
3464 max_height,
3465 cmp::max(
3466 available_within_viewport.top,
3467 available_within_viewport.bottom,
3468 ),
3469 ) - POPOVER_Y_PADDING,
3470 );
3471 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3472 return;
3473 };
3474 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3475
3476 let top_position = point(
3477 menu_bounds.origin.x,
3478 target_bounds.top() - actual_size.height,
3479 );
3480 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3481
3482 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3483 // Prefer to fit on the same side of the line as the menu, then on the other side of
3484 // the line.
3485 if !y_flipped && wanted.height < available.bottom {
3486 Some(bottom_position)
3487 } else if !y_flipped && wanted.height < available.top {
3488 Some(top_position)
3489 } else if y_flipped && wanted.height < available.top {
3490 Some(top_position)
3491 } else if y_flipped && wanted.height < available.bottom {
3492 Some(bottom_position)
3493 } else {
3494 None
3495 }
3496 };
3497
3498 // Prefer choosing a direction using max sizes rather than actual size for stability.
3499 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3500 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3501 let aside_position = fit_within(available_within_text, wanted)
3502 // Fallback: fit max size in window.
3503 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3504 // Fallback: fit actual size in window.
3505 .or_else(|| fit_within(available_within_viewport, actual_size));
3506
3507 aside_position.map(|position| (aside, position))
3508 };
3509
3510 // Skip drawing if it doesn't fit anywhere.
3511 if let Some((aside, position)) = positioned_aside {
3512 window.defer_draw(aside, position, 2);
3513 }
3514 }
3515
3516 fn render_context_menu(
3517 &self,
3518 line_height: Pixels,
3519 height: Pixels,
3520 y_flipped: bool,
3521 window: &mut Window,
3522 cx: &mut App,
3523 ) -> Option<AnyElement> {
3524 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3525 self.editor.update(cx, |editor, cx| {
3526 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3527 })
3528 }
3529
3530 fn render_context_menu_aside(
3531 &self,
3532 max_size: Size<Pixels>,
3533 window: &mut Window,
3534 cx: &mut App,
3535 ) -> Option<AnyElement> {
3536 if max_size.width < px(100.) || max_size.height < px(12.) {
3537 None
3538 } else {
3539 self.editor.update(cx, |editor, cx| {
3540 editor.render_context_menu_aside(max_size, window, cx)
3541 })
3542 }
3543 }
3544
3545 #[allow(clippy::too_many_arguments)]
3546 fn layout_edit_prediction_popover(
3547 &self,
3548 text_bounds: &Bounds<Pixels>,
3549 content_origin: gpui::Point<Pixels>,
3550 editor_snapshot: &EditorSnapshot,
3551 visible_row_range: Range<DisplayRow>,
3552 scroll_top: f32,
3553 scroll_bottom: f32,
3554 line_layouts: &[LineWithInvisibles],
3555 line_height: Pixels,
3556 scroll_pixel_position: gpui::Point<Pixels>,
3557 newest_selection_head: Option<DisplayPoint>,
3558 editor_width: Pixels,
3559 style: &EditorStyle,
3560 window: &mut Window,
3561 cx: &mut App,
3562 ) -> Option<AnyElement> {
3563 const PADDING_X: Pixels = Pixels(24.);
3564 const PADDING_Y: Pixels = Pixels(2.);
3565
3566 let editor = self.editor.read(cx);
3567 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3568
3569 if editor.edit_prediction_visible_in_cursor_popover(true) {
3570 return None;
3571 }
3572
3573 // Adjust text origin for horizontal scrolling (in some cases here)
3574 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3575
3576 // Clamp left offset after extreme scrollings
3577 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3578 x: point.x.max(content_origin.x),
3579 y: point.y,
3580 };
3581
3582 match &active_inline_completion.completion {
3583 InlineCompletion::Move { target, .. } => {
3584 let target_display_point = target.to_display_point(editor_snapshot);
3585
3586 if editor.edit_prediction_requires_modifier() {
3587 if !editor.edit_prediction_preview_is_active() {
3588 return None;
3589 }
3590
3591 if target_display_point.row() < visible_row_range.start {
3592 let mut element = editor
3593 .render_edit_prediction_line_popover(
3594 "Scroll",
3595 Some(IconName::ArrowUp),
3596 window,
3597 cx,
3598 )?
3599 .into_any();
3600
3601 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3602
3603 let cursor = newest_selection_head?;
3604 let cursor_row_layout = line_layouts
3605 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3606 let cursor_column = cursor.column() as usize;
3607
3608 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3609
3610 const PADDING_Y: Pixels = px(12.);
3611
3612 let origin = start_point + point(cursor_character_x, PADDING_Y);
3613
3614 element.prepaint_at(origin, window, cx);
3615 return Some(element);
3616 } else if target_display_point.row() >= visible_row_range.end {
3617 let mut element = editor
3618 .render_edit_prediction_line_popover(
3619 "Scroll",
3620 Some(IconName::ArrowDown),
3621 window,
3622 cx,
3623 )?
3624 .into_any();
3625
3626 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3627
3628 let cursor = newest_selection_head?;
3629 let cursor_row_layout = line_layouts
3630 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3631 let cursor_column = cursor.column() as usize;
3632
3633 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3634 const PADDING_Y: Pixels = px(12.);
3635
3636 let origin = start_point
3637 + point(
3638 cursor_character_x,
3639 text_bounds.size.height - size.height - PADDING_Y,
3640 );
3641
3642 element.prepaint_at(origin, window, cx);
3643 return Some(element);
3644 } else {
3645 const POLE_WIDTH: Pixels = px(2.);
3646
3647 let mut element = v_flex()
3648 .items_end()
3649 .child(
3650 editor
3651 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3652 .rounded_br(px(0.))
3653 .rounded_tr(px(0.))
3654 .border_r_2(),
3655 )
3656 .child(
3657 div()
3658 .w(POLE_WIDTH)
3659 .bg(Editor::edit_prediction_callout_popover_border_color(cx))
3660 .h(line_height),
3661 )
3662 .into_any();
3663
3664 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3665
3666 let line_layout =
3667 line_layouts
3668 .get(target_display_point.row().minus(visible_row_range.start)
3669 as usize)?;
3670 let target_column = target_display_point.column() as usize;
3671
3672 let target_x = line_layout.x_for_index(target_column);
3673 let target_y = (target_display_point.row().as_f32() * line_height)
3674 - scroll_pixel_position.y;
3675
3676 let origin = clamp_start(
3677 start_point + point(target_x, target_y)
3678 - point(size.width - POLE_WIDTH, size.height - line_height),
3679 );
3680
3681 element.prepaint_at(origin, window, cx);
3682
3683 return Some(element);
3684 }
3685 }
3686
3687 if target_display_point.row().as_f32() < scroll_top {
3688 let mut element = editor
3689 .render_edit_prediction_line_popover(
3690 "Jump to Edit",
3691 Some(IconName::ArrowUp),
3692 window,
3693 cx,
3694 )?
3695 .into_any();
3696
3697 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3698 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3699
3700 element.prepaint_at(text_bounds.origin + offset, window, cx);
3701 Some(element)
3702 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3703 let mut element = editor
3704 .render_edit_prediction_line_popover(
3705 "Jump to Edit",
3706 Some(IconName::ArrowDown),
3707 window,
3708 cx,
3709 )?
3710 .into_any();
3711
3712 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3713 let offset = point(
3714 (text_bounds.size.width - size.width) / 2.,
3715 text_bounds.size.height - size.height - PADDING_Y,
3716 );
3717
3718 element.prepaint_at(text_bounds.origin + offset, window, cx);
3719 Some(element)
3720 } else {
3721 let mut element = editor
3722 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3723 .into_any();
3724 let target_line_end = DisplayPoint::new(
3725 target_display_point.row(),
3726 editor_snapshot.line_len(target_display_point.row()),
3727 );
3728 let origin = self.editor.update(cx, |editor, _cx| {
3729 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3730 })?;
3731
3732 element.prepaint_as_root(
3733 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3734 AvailableSpace::min_size(),
3735 window,
3736 cx,
3737 );
3738 Some(element)
3739 }
3740 }
3741 InlineCompletion::Edit {
3742 edits,
3743 edit_preview,
3744 display_mode,
3745 snapshot,
3746 } => {
3747 if self.editor.read(cx).has_visible_completions_menu() {
3748 return None;
3749 }
3750
3751 let edit_start = edits
3752 .first()
3753 .unwrap()
3754 .0
3755 .start
3756 .to_display_point(editor_snapshot);
3757 let edit_end = edits
3758 .last()
3759 .unwrap()
3760 .0
3761 .end
3762 .to_display_point(editor_snapshot);
3763
3764 let is_visible = visible_row_range.contains(&edit_start.row())
3765 || visible_row_range.contains(&edit_end.row());
3766 if !is_visible {
3767 return None;
3768 }
3769
3770 match display_mode {
3771 EditDisplayMode::TabAccept => {
3772 let range = &edits.first()?.0;
3773 let target_display_point = range.end.to_display_point(editor_snapshot);
3774
3775 let target_line_end = DisplayPoint::new(
3776 target_display_point.row(),
3777 editor_snapshot.line_len(target_display_point.row()),
3778 );
3779 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3780 Some((
3781 editor
3782 .render_edit_prediction_line_popover(
3783 "Accept", None, window, cx,
3784 )?
3785 .into_any(),
3786 editor.display_to_pixel_point(
3787 target_line_end,
3788 editor_snapshot,
3789 window,
3790 )?,
3791 ))
3792 })?;
3793
3794 element.prepaint_as_root(
3795 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3796 AvailableSpace::min_size(),
3797 window,
3798 cx,
3799 );
3800 return Some(element);
3801 }
3802 EditDisplayMode::Inline => return None,
3803 EditDisplayMode::DiffPopover => {}
3804 }
3805
3806 let highlighted_edits = crate::inline_completion_edit_text(
3807 &snapshot,
3808 edits,
3809 edit_preview.as_ref()?,
3810 false,
3811 cx,
3812 );
3813
3814 let styled_text = highlighted_edits.to_styled_text(&style.text);
3815 let line_count = highlighted_edits.text.lines().count();
3816
3817 const BORDER_WIDTH: Pixels = px(1.);
3818
3819 let mut element = h_flex()
3820 .items_start()
3821 .child(
3822 h_flex()
3823 .bg(cx.theme().colors().editor_background)
3824 .border(BORDER_WIDTH)
3825 .shadow_sm()
3826 .border_color(cx.theme().colors().border)
3827 .rounded_l_lg()
3828 .when(line_count > 1, |el| el.rounded_br_lg())
3829 .pr_1()
3830 .child(styled_text),
3831 )
3832 .child(
3833 h_flex()
3834 .h(line_height + BORDER_WIDTH * px(2.))
3835 .px_1p5()
3836 .gap_1()
3837 // Workaround: For some reason, there's a gap if we don't do this
3838 .ml(-BORDER_WIDTH)
3839 .shadow(smallvec![gpui::BoxShadow {
3840 color: gpui::black().opacity(0.05),
3841 offset: point(px(1.), px(1.)),
3842 blur_radius: px(2.),
3843 spread_radius: px(0.),
3844 }])
3845 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
3846 .border(BORDER_WIDTH)
3847 .border_color(cx.theme().colors().border)
3848 .rounded_r_lg()
3849 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
3850 )
3851 .into_any();
3852
3853 let longest_row =
3854 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3855 let longest_line_width = if visible_row_range.contains(&longest_row) {
3856 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3857 } else {
3858 layout_line(
3859 longest_row,
3860 editor_snapshot,
3861 style,
3862 editor_width,
3863 |_| false,
3864 window,
3865 cx,
3866 )
3867 .width
3868 };
3869
3870 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3871 .extend(Edges {
3872 right: -Self::SCROLLBAR_WIDTH,
3873 ..Default::default()
3874 });
3875
3876 let x_after_longest =
3877 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3878
3879 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3880
3881 // Fully visible if it can be displayed within the window (allow overlapping other
3882 // panes). However, this is only allowed if the popover starts within text_bounds.
3883 let can_position_to_the_right = x_after_longest < text_bounds.right()
3884 && x_after_longest + element_bounds.width < viewport_bounds.right();
3885
3886 let mut origin = if can_position_to_the_right {
3887 point(
3888 x_after_longest,
3889 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3890 - scroll_pixel_position.y,
3891 )
3892 } else {
3893 let cursor_row = newest_selection_head.map(|head| head.row());
3894 let above_edit = edit_start
3895 .row()
3896 .0
3897 .checked_sub(line_count as u32)
3898 .map(DisplayRow);
3899 let below_edit = Some(edit_end.row() + 1);
3900 let above_cursor = cursor_row
3901 .and_then(|row| row.0.checked_sub(line_count as u32).map(DisplayRow));
3902 let below_cursor = cursor_row.map(|cursor_row| cursor_row + 1);
3903
3904 // Place the edit popover adjacent to the edit if there is a location
3905 // available that is onscreen and does not obscure the cursor. Otherwise,
3906 // place it adjacent to the cursor.
3907 let row_target = [above_edit, below_edit, above_cursor, below_cursor]
3908 .into_iter()
3909 .flatten()
3910 .find(|&start_row| {
3911 let end_row = start_row + line_count as u32;
3912 visible_row_range.contains(&start_row)
3913 && visible_row_range.contains(&end_row)
3914 && cursor_row.map_or(true, |cursor_row| {
3915 !((start_row..end_row).contains(&cursor_row))
3916 })
3917 })?;
3918
3919 content_origin
3920 + point(
3921 -scroll_pixel_position.x,
3922 row_target.as_f32() * line_height - scroll_pixel_position.y,
3923 )
3924 };
3925
3926 origin.x -= BORDER_WIDTH;
3927
3928 window.defer_draw(element, origin, 1);
3929
3930 // Do not return an element, since it will already be drawn due to defer_draw.
3931 None
3932 }
3933 }
3934 }
3935
3936 fn layout_mouse_context_menu(
3937 &self,
3938 editor_snapshot: &EditorSnapshot,
3939 visible_range: Range<DisplayRow>,
3940 content_origin: gpui::Point<Pixels>,
3941 window: &mut Window,
3942 cx: &mut App,
3943 ) -> Option<AnyElement> {
3944 let position = self.editor.update(cx, |editor, _cx| {
3945 let visible_start_point = editor.display_to_pixel_point(
3946 DisplayPoint::new(visible_range.start, 0),
3947 editor_snapshot,
3948 window,
3949 )?;
3950 let visible_end_point = editor.display_to_pixel_point(
3951 DisplayPoint::new(visible_range.end, 0),
3952 editor_snapshot,
3953 window,
3954 )?;
3955
3956 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3957 let (source_display_point, position) = match mouse_context_menu.position {
3958 MenuPosition::PinnedToScreen(point) => (None, point),
3959 MenuPosition::PinnedToEditor { source, offset } => {
3960 let source_display_point = source.to_display_point(editor_snapshot);
3961 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3962 let position = content_origin + source_point + offset;
3963 (Some(source_display_point), position)
3964 }
3965 };
3966
3967 let source_included = source_display_point.map_or(true, |source_display_point| {
3968 visible_range
3969 .to_inclusive()
3970 .contains(&source_display_point.row())
3971 });
3972 let position_included =
3973 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3974 if !source_included && !position_included {
3975 None
3976 } else {
3977 Some(position)
3978 }
3979 })?;
3980
3981 let mut element = self.editor.update(cx, |editor, _| {
3982 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3983 let context_menu = mouse_context_menu.context_menu.clone();
3984
3985 Some(
3986 deferred(
3987 anchored()
3988 .position(position)
3989 .child(context_menu)
3990 .anchor(Corner::TopLeft)
3991 .snap_to_window_with_margin(px(8.)),
3992 )
3993 .with_priority(1)
3994 .into_any(),
3995 )
3996 })?;
3997
3998 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3999 Some(element)
4000 }
4001
4002 #[allow(clippy::too_many_arguments)]
4003 fn layout_hover_popovers(
4004 &self,
4005 snapshot: &EditorSnapshot,
4006 hitbox: &Hitbox,
4007 text_hitbox: &Hitbox,
4008 visible_display_row_range: Range<DisplayRow>,
4009 content_origin: gpui::Point<Pixels>,
4010 scroll_pixel_position: gpui::Point<Pixels>,
4011 line_layouts: &[LineWithInvisibles],
4012 line_height: Pixels,
4013 em_width: Pixels,
4014 window: &mut Window,
4015 cx: &mut App,
4016 ) {
4017 struct MeasuredHoverPopover {
4018 element: AnyElement,
4019 size: Size<Pixels>,
4020 horizontal_offset: Pixels,
4021 }
4022
4023 let max_size = size(
4024 (120. * em_width) // Default size
4025 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4026 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4027 (16. * line_height) // Default size
4028 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4029 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4030 );
4031
4032 let hover_popovers = self.editor.update(cx, |editor, cx| {
4033 editor
4034 .hover_state
4035 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4036 });
4037 let Some((position, hover_popovers)) = hover_popovers else {
4038 return;
4039 };
4040
4041 // This is safe because we check on layout whether the required row is available
4042 let hovered_row_layout =
4043 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4044
4045 // Compute Hovered Point
4046 let x =
4047 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4048 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4049 let hovered_point = content_origin + point(x, y);
4050
4051 let mut overall_height = Pixels::ZERO;
4052 let mut measured_hover_popovers = Vec::new();
4053 for mut hover_popover in hover_popovers {
4054 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4055 let horizontal_offset =
4056 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4057
4058 overall_height += HOVER_POPOVER_GAP + size.height;
4059
4060 measured_hover_popovers.push(MeasuredHoverPopover {
4061 element: hover_popover,
4062 size,
4063 horizontal_offset,
4064 });
4065 }
4066 overall_height += HOVER_POPOVER_GAP;
4067
4068 fn draw_occluder(
4069 width: Pixels,
4070 origin: gpui::Point<Pixels>,
4071 window: &mut Window,
4072 cx: &mut App,
4073 ) {
4074 let mut occlusion = div()
4075 .size_full()
4076 .occlude()
4077 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4078 .into_any_element();
4079 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4080 window.defer_draw(occlusion, origin, 2);
4081 }
4082
4083 if hovered_point.y > overall_height {
4084 // There is enough space above. Render popovers above the hovered point
4085 let mut current_y = hovered_point.y;
4086 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4087 let size = popover.size;
4088 let popover_origin = point(
4089 hovered_point.x + popover.horizontal_offset,
4090 current_y - size.height,
4091 );
4092
4093 window.defer_draw(popover.element, popover_origin, 2);
4094 if position != itertools::Position::Last {
4095 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4096 draw_occluder(size.width, origin, window, cx);
4097 }
4098
4099 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4100 }
4101 } else {
4102 // There is not enough space above. Render popovers below the hovered point
4103 let mut current_y = hovered_point.y + line_height;
4104 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4105 let size = popover.size;
4106 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4107
4108 window.defer_draw(popover.element, popover_origin, 2);
4109 if position != itertools::Position::Last {
4110 let origin = point(popover_origin.x, popover_origin.y + size.height);
4111 draw_occluder(size.width, origin, window, cx);
4112 }
4113
4114 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4115 }
4116 }
4117 }
4118
4119 #[allow(clippy::too_many_arguments)]
4120 fn layout_diff_hunk_controls(
4121 &self,
4122 row_range: Range<DisplayRow>,
4123 row_infos: &[RowInfo],
4124 text_hitbox: &Hitbox,
4125 position_map: &PositionMap,
4126 newest_cursor_position: Option<DisplayPoint>,
4127 line_height: Pixels,
4128 scroll_pixel_position: gpui::Point<Pixels>,
4129 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4130 editor: Entity<Editor>,
4131 window: &mut Window,
4132 cx: &mut App,
4133 ) -> Vec<AnyElement> {
4134 let point_for_position = position_map.point_for_position(window.mouse_position());
4135
4136 let mut controls = vec![];
4137
4138 let active_positions = [
4139 Some(point_for_position.previous_valid),
4140 newest_cursor_position,
4141 ];
4142
4143 for (hunk, _) in display_hunks {
4144 if let DisplayDiffHunk::Unfolded {
4145 display_row_range,
4146 multi_buffer_range,
4147 status,
4148 ..
4149 } = &hunk
4150 {
4151 if display_row_range.start < row_range.start
4152 || display_row_range.start >= row_range.end
4153 {
4154 continue;
4155 }
4156 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4157 if row_infos[row_ix].diff_status.is_none() {
4158 continue;
4159 }
4160 if matches!(
4161 row_infos[row_ix].diff_status,
4162 Some(DiffHunkStatus::Added(_))
4163 ) && !matches!(*status, DiffHunkStatus::Added(_))
4164 {
4165 continue;
4166 }
4167 if active_positions
4168 .iter()
4169 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4170 {
4171 let y = display_row_range.start.as_f32() * line_height
4172 + text_hitbox.bounds.top()
4173 - scroll_pixel_position.y;
4174 let x = text_hitbox.bounds.right()
4175 - rems(6.).to_pixels(window.rem_size())
4176 - px(33.);
4177
4178 let mut element = diff_hunk_controls(
4179 display_row_range.start.0,
4180 multi_buffer_range.clone(),
4181 line_height,
4182 &editor,
4183 window,
4184 cx,
4185 );
4186 element.prepaint_as_root(
4187 gpui::Point::new(x, y),
4188 size(px(100.0), line_height).into(),
4189 window,
4190 cx,
4191 );
4192 controls.push(element);
4193 }
4194 }
4195 }
4196
4197 controls
4198 }
4199
4200 #[allow(clippy::too_many_arguments)]
4201 fn layout_signature_help(
4202 &self,
4203 hitbox: &Hitbox,
4204 content_origin: gpui::Point<Pixels>,
4205 scroll_pixel_position: gpui::Point<Pixels>,
4206 newest_selection_head: Option<DisplayPoint>,
4207 start_row: DisplayRow,
4208 line_layouts: &[LineWithInvisibles],
4209 line_height: Pixels,
4210 em_width: Pixels,
4211 window: &mut Window,
4212 cx: &mut App,
4213 ) {
4214 if !self.editor.focus_handle(cx).is_focused(window) {
4215 return;
4216 }
4217 let Some(newest_selection_head) = newest_selection_head else {
4218 return;
4219 };
4220 let selection_row = newest_selection_head.row();
4221 if selection_row < start_row {
4222 return;
4223 }
4224 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4225 else {
4226 return;
4227 };
4228
4229 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4230 - scroll_pixel_position.x
4231 + content_origin.x;
4232 let start_y =
4233 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4234
4235 let max_size = size(
4236 (120. * em_width) // Default size
4237 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4238 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4239 (16. * line_height) // Default size
4240 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4241 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4242 );
4243
4244 let maybe_element = self.editor.update(cx, |editor, cx| {
4245 if let Some(popover) = editor.signature_help_state.popover_mut() {
4246 let element = popover.render(max_size, cx);
4247 Some(element)
4248 } else {
4249 None
4250 }
4251 });
4252 if let Some(mut element) = maybe_element {
4253 let window_size = window.viewport_size();
4254 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4255 let mut point = point(start_x, start_y - size.height);
4256
4257 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4258 if point.x + size.width >= window_size.width {
4259 point.x = window_size.width - size.width;
4260 }
4261
4262 window.defer_draw(element, point, 1)
4263 }
4264 }
4265
4266 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4267 window.paint_layer(layout.hitbox.bounds, |window| {
4268 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4269 let gutter_bg = cx.theme().colors().editor_gutter_background;
4270 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4271 window.paint_quad(fill(
4272 layout.position_map.text_hitbox.bounds,
4273 self.style.background,
4274 ));
4275
4276 if let EditorMode::Full = layout.mode {
4277 let mut active_rows = layout.active_rows.iter().peekable();
4278 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4279 let mut end_row = start_row.0;
4280 while active_rows
4281 .peek()
4282 .map_or(false, |(active_row, has_selection)| {
4283 active_row.0 == end_row + 1
4284 && *has_selection == contains_non_empty_selection
4285 })
4286 {
4287 active_rows.next().unwrap();
4288 end_row += 1;
4289 }
4290
4291 if !contains_non_empty_selection {
4292 let highlight_h_range =
4293 match layout.position_map.snapshot.current_line_highlight {
4294 CurrentLineHighlight::Gutter => Some(Range {
4295 start: layout.hitbox.left(),
4296 end: layout.gutter_hitbox.right(),
4297 }),
4298 CurrentLineHighlight::Line => Some(Range {
4299 start: layout.position_map.text_hitbox.bounds.left(),
4300 end: layout.position_map.text_hitbox.bounds.right(),
4301 }),
4302 CurrentLineHighlight::All => Some(Range {
4303 start: layout.hitbox.left(),
4304 end: layout.hitbox.right(),
4305 }),
4306 CurrentLineHighlight::None => None,
4307 };
4308 if let Some(range) = highlight_h_range {
4309 let active_line_bg = cx.theme().colors().editor_active_line_background;
4310 let bounds = Bounds {
4311 origin: point(
4312 range.start,
4313 layout.hitbox.origin.y
4314 + (start_row.as_f32() - scroll_top)
4315 * layout.position_map.line_height,
4316 ),
4317 size: size(
4318 range.end - range.start,
4319 layout.position_map.line_height
4320 * (end_row - start_row.0 + 1) as f32,
4321 ),
4322 };
4323 window.paint_quad(fill(bounds, active_line_bg));
4324 }
4325 }
4326 }
4327
4328 let mut paint_highlight =
4329 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4330 let origin = point(
4331 layout.hitbox.origin.x,
4332 layout.hitbox.origin.y
4333 + (highlight_row_start.as_f32() - scroll_top)
4334 * layout.position_map.line_height,
4335 );
4336 let size = size(
4337 layout.hitbox.size.width,
4338 layout.position_map.line_height
4339 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4340 );
4341 window.paint_quad(fill(Bounds { origin, size }, color));
4342 };
4343
4344 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4345 for (&new_row, &new_background) in &layout.highlighted_rows {
4346 match &mut current_paint {
4347 Some((current_background, current_range)) => {
4348 let current_background = *current_background;
4349 let new_range_started = current_background != new_background
4350 || current_range.end.next_row() != new_row;
4351 if new_range_started {
4352 paint_highlight(
4353 current_range.start,
4354 current_range.end,
4355 current_background,
4356 );
4357 current_paint = Some((new_background, new_row..new_row));
4358 continue;
4359 } else {
4360 current_range.end = current_range.end.next_row();
4361 }
4362 }
4363 None => current_paint = Some((new_background, new_row..new_row)),
4364 };
4365 }
4366 if let Some((color, range)) = current_paint {
4367 paint_highlight(range.start, range.end, color);
4368 }
4369
4370 let scroll_left =
4371 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4372
4373 for (wrap_position, active) in layout.wrap_guides.iter() {
4374 let x = (layout.position_map.text_hitbox.origin.x
4375 + *wrap_position
4376 + layout.position_map.em_width / 2.)
4377 - scroll_left;
4378
4379 let show_scrollbars = {
4380 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4381
4382 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4383 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4384 };
4385
4386 if x < layout.position_map.text_hitbox.origin.x
4387 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4388 {
4389 continue;
4390 }
4391
4392 let color = if *active {
4393 cx.theme().colors().editor_active_wrap_guide
4394 } else {
4395 cx.theme().colors().editor_wrap_guide
4396 };
4397 window.paint_quad(fill(
4398 Bounds {
4399 origin: point(x, layout.position_map.text_hitbox.origin.y),
4400 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4401 },
4402 color,
4403 ));
4404 }
4405 }
4406 })
4407 }
4408
4409 fn paint_indent_guides(
4410 &mut self,
4411 layout: &mut EditorLayout,
4412 window: &mut Window,
4413 cx: &mut App,
4414 ) {
4415 let Some(indent_guides) = &layout.indent_guides else {
4416 return;
4417 };
4418
4419 let faded_color = |color: Hsla, alpha: f32| {
4420 let mut faded = color;
4421 faded.a = alpha;
4422 faded
4423 };
4424
4425 for indent_guide in indent_guides {
4426 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4427 let settings = indent_guide.settings;
4428
4429 // TODO fixed for now, expose them through themes later
4430 const INDENT_AWARE_ALPHA: f32 = 0.2;
4431 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4432 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4433 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4434
4435 let line_color = match (settings.coloring, indent_guide.active) {
4436 (IndentGuideColoring::Disabled, _) => None,
4437 (IndentGuideColoring::Fixed, false) => {
4438 Some(cx.theme().colors().editor_indent_guide)
4439 }
4440 (IndentGuideColoring::Fixed, true) => {
4441 Some(cx.theme().colors().editor_indent_guide_active)
4442 }
4443 (IndentGuideColoring::IndentAware, false) => {
4444 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4445 }
4446 (IndentGuideColoring::IndentAware, true) => {
4447 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4448 }
4449 };
4450
4451 let background_color = match (settings.background_coloring, indent_guide.active) {
4452 (IndentGuideBackgroundColoring::Disabled, _) => None,
4453 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4454 indent_accent_colors,
4455 INDENT_AWARE_BACKGROUND_ALPHA,
4456 )),
4457 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4458 indent_accent_colors,
4459 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4460 )),
4461 };
4462
4463 let requested_line_width = if indent_guide.active {
4464 settings.active_line_width
4465 } else {
4466 settings.line_width
4467 }
4468 .clamp(1, 10);
4469 let mut line_indicator_width = 0.;
4470 if let Some(color) = line_color {
4471 window.paint_quad(fill(
4472 Bounds {
4473 origin: indent_guide.origin,
4474 size: size(px(requested_line_width as f32), indent_guide.length),
4475 },
4476 color,
4477 ));
4478 line_indicator_width = requested_line_width as f32;
4479 }
4480
4481 if let Some(color) = background_color {
4482 let width = indent_guide.single_indent_width - px(line_indicator_width);
4483 window.paint_quad(fill(
4484 Bounds {
4485 origin: point(
4486 indent_guide.origin.x + px(line_indicator_width),
4487 indent_guide.origin.y,
4488 ),
4489 size: size(width, indent_guide.length),
4490 },
4491 color,
4492 ));
4493 }
4494 }
4495 }
4496
4497 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4498 let is_singleton = self.editor.read(cx).is_singleton(cx);
4499
4500 let line_height = layout.position_map.line_height;
4501 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4502
4503 for LineNumberLayout {
4504 shaped_line,
4505 hitbox,
4506 display_row,
4507 } in layout.line_numbers.values()
4508 {
4509 let Some(hitbox) = hitbox else {
4510 continue;
4511 };
4512
4513 let is_active = layout.active_rows.contains_key(&display_row);
4514
4515 let color = if is_active {
4516 cx.theme().colors().editor_active_line_number
4517 } else if !is_singleton && hitbox.is_hovered(window) {
4518 cx.theme().colors().editor_hover_line_number
4519 } else {
4520 cx.theme().colors().editor_line_number
4521 };
4522
4523 let Some(line) = self
4524 .shape_line_number(shaped_line.text.clone(), color, window)
4525 .log_err()
4526 else {
4527 continue;
4528 };
4529 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4530 continue;
4531 };
4532 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4533 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4534 if is_singleton {
4535 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4536 } else {
4537 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4538 }
4539 }
4540 }
4541
4542 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4543 if layout.display_hunks.is_empty() {
4544 return;
4545 }
4546
4547 let line_height = layout.position_map.line_height;
4548 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4549 for (hunk, hitbox) in &layout.display_hunks {
4550 let hunk_to_paint = match hunk {
4551 DisplayDiffHunk::Folded { .. } => {
4552 let hunk_bounds = Self::diff_hunk_bounds(
4553 &layout.position_map.snapshot,
4554 line_height,
4555 layout.gutter_hitbox.bounds,
4556 hunk,
4557 );
4558 Some((
4559 hunk_bounds,
4560 cx.theme().status().modified,
4561 Corners::all(px(0.)),
4562 &DiffHunkSecondaryStatus::None,
4563 ))
4564 }
4565 DisplayDiffHunk::Unfolded {
4566 status,
4567 display_row_range,
4568 ..
4569 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4570 DiffHunkStatus::Added(secondary_status) => (
4571 hunk_hitbox.bounds,
4572 cx.theme().status().created,
4573 Corners::all(px(0.)),
4574 secondary_status,
4575 ),
4576 DiffHunkStatus::Modified(secondary_status) => (
4577 hunk_hitbox.bounds,
4578 cx.theme().status().modified,
4579 Corners::all(px(0.)),
4580 secondary_status,
4581 ),
4582 DiffHunkStatus::Removed(secondary_status)
4583 if !display_row_range.is_empty() =>
4584 {
4585 (
4586 hunk_hitbox.bounds,
4587 cx.theme().status().deleted,
4588 Corners::all(px(0.)),
4589 secondary_status,
4590 )
4591 }
4592 DiffHunkStatus::Removed(secondary_status) => (
4593 Bounds::new(
4594 point(
4595 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4596 hunk_hitbox.origin.y,
4597 ),
4598 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4599 ),
4600 cx.theme().status().deleted,
4601 Corners::all(1. * line_height),
4602 secondary_status,
4603 ),
4604 }),
4605 };
4606
4607 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4608 hunk_to_paint
4609 {
4610 if *secondary_status != DiffHunkSecondaryStatus::None {
4611 background_color.a *= 0.6;
4612 }
4613 window.paint_quad(quad(
4614 hunk_bounds,
4615 corner_radii,
4616 background_color,
4617 Edges::default(),
4618 transparent_black(),
4619 ));
4620 }
4621 }
4622 });
4623 }
4624
4625 fn diff_hunk_bounds(
4626 snapshot: &EditorSnapshot,
4627 line_height: Pixels,
4628 gutter_bounds: Bounds<Pixels>,
4629 hunk: &DisplayDiffHunk,
4630 ) -> Bounds<Pixels> {
4631 let scroll_position = snapshot.scroll_position();
4632 let scroll_top = scroll_position.y * line_height;
4633 let gutter_strip_width = (0.275 * line_height).floor();
4634
4635 match hunk {
4636 DisplayDiffHunk::Folded { display_row, .. } => {
4637 let start_y = display_row.as_f32() * line_height - scroll_top;
4638 let end_y = start_y + line_height;
4639 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4640 let highlight_size = size(gutter_strip_width, end_y - start_y);
4641 Bounds::new(highlight_origin, highlight_size)
4642 }
4643 DisplayDiffHunk::Unfolded {
4644 display_row_range,
4645 status,
4646 ..
4647 } => {
4648 if status.is_removed() && display_row_range.is_empty() {
4649 let row = display_row_range.start;
4650
4651 let offset = line_height / 2.;
4652 let start_y = row.as_f32() * line_height - offset - scroll_top;
4653 let end_y = start_y + line_height;
4654
4655 let width = (0.35 * line_height).floor();
4656 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4657 let highlight_size = size(width, end_y - start_y);
4658 Bounds::new(highlight_origin, highlight_size)
4659 } else {
4660 let start_row = display_row_range.start;
4661 let end_row = display_row_range.end;
4662 // If we're in a multibuffer, row range span might include an
4663 // excerpt header, so if we were to draw the marker straight away,
4664 // the hunk might include the rows of that header.
4665 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4666 // Instead, we simply check whether the range we're dealing with includes
4667 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4668 let end_row_in_current_excerpt = snapshot
4669 .blocks_in_range(start_row..end_row)
4670 .find_map(|(start_row, block)| {
4671 if matches!(block, Block::ExcerptBoundary { .. }) {
4672 Some(start_row)
4673 } else {
4674 None
4675 }
4676 })
4677 .unwrap_or(end_row);
4678
4679 let start_y = start_row.as_f32() * line_height - scroll_top;
4680 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4681
4682 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4683 let highlight_size = size(gutter_strip_width, end_y - start_y);
4684 Bounds::new(highlight_origin, highlight_size)
4685 }
4686 }
4687 }
4688 }
4689
4690 fn paint_gutter_indicators(
4691 &self,
4692 layout: &mut EditorLayout,
4693 window: &mut Window,
4694 cx: &mut App,
4695 ) {
4696 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4697 window.with_element_namespace("crease_toggles", |window| {
4698 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4699 crease_toggle.paint(window, cx);
4700 }
4701 });
4702
4703 for test_indicator in layout.test_indicators.iter_mut() {
4704 test_indicator.paint(window, cx);
4705 }
4706
4707 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4708 indicator.paint(window, cx);
4709 }
4710 });
4711 }
4712
4713 fn paint_gutter_highlights(
4714 &self,
4715 layout: &mut EditorLayout,
4716 window: &mut Window,
4717 cx: &mut App,
4718 ) {
4719 for (_, hunk_hitbox) in &layout.display_hunks {
4720 if let Some(hunk_hitbox) = hunk_hitbox {
4721 if !self
4722 .editor
4723 .read(cx)
4724 .buffer()
4725 .read(cx)
4726 .all_diff_hunks_expanded()
4727 {
4728 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4729 }
4730 }
4731 }
4732
4733 let show_git_gutter = layout
4734 .position_map
4735 .snapshot
4736 .show_git_diff_gutter
4737 .unwrap_or_else(|| {
4738 matches!(
4739 ProjectSettings::get_global(cx).git.git_gutter,
4740 Some(GitGutterSetting::TrackedFiles)
4741 )
4742 });
4743 if show_git_gutter {
4744 Self::paint_diff_hunks(layout, window, cx)
4745 }
4746
4747 let highlight_width = 0.275 * layout.position_map.line_height;
4748 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4749 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4750 for (range, color) in &layout.highlighted_gutter_ranges {
4751 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4752 layout.visible_display_row_range.start - DisplayRow(1)
4753 } else {
4754 range.start.row()
4755 };
4756 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4757 layout.visible_display_row_range.end + DisplayRow(1)
4758 } else {
4759 range.end.row()
4760 };
4761
4762 let start_y = layout.gutter_hitbox.top()
4763 + start_row.0 as f32 * layout.position_map.line_height
4764 - layout.position_map.scroll_pixel_position.y;
4765 let end_y = layout.gutter_hitbox.top()
4766 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4767 - layout.position_map.scroll_pixel_position.y;
4768 let bounds = Bounds::from_corners(
4769 point(layout.gutter_hitbox.left(), start_y),
4770 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4771 );
4772 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4773 }
4774 });
4775 }
4776
4777 fn paint_blamed_display_rows(
4778 &self,
4779 layout: &mut EditorLayout,
4780 window: &mut Window,
4781 cx: &mut App,
4782 ) {
4783 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4784 return;
4785 };
4786
4787 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4788 for mut blame_element in blamed_display_rows.into_iter() {
4789 blame_element.paint(window, cx);
4790 }
4791 })
4792 }
4793
4794 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4795 window.with_content_mask(
4796 Some(ContentMask {
4797 bounds: layout.position_map.text_hitbox.bounds,
4798 }),
4799 |window| {
4800 let cursor_style = if self
4801 .editor
4802 .read(cx)
4803 .hovered_link_state
4804 .as_ref()
4805 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4806 {
4807 CursorStyle::PointingHand
4808 } else {
4809 CursorStyle::IBeam
4810 };
4811 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4812
4813 let invisible_display_ranges = self.paint_highlights(layout, window);
4814 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4815 self.paint_redactions(layout, window);
4816 self.paint_cursors(layout, window, cx);
4817 self.paint_inline_blame(layout, window, cx);
4818 self.paint_diff_hunk_controls(layout, window, cx);
4819 window.with_element_namespace("crease_trailers", |window| {
4820 for trailer in layout.crease_trailers.iter_mut().flatten() {
4821 trailer.element.paint(window, cx);
4822 }
4823 });
4824 },
4825 )
4826 }
4827
4828 fn paint_highlights(
4829 &mut self,
4830 layout: &mut EditorLayout,
4831 window: &mut Window,
4832 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4833 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4834 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4835 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4836 for (range, color) in &layout.highlighted_ranges {
4837 self.paint_highlighted_range(
4838 range.clone(),
4839 *color,
4840 Pixels::ZERO,
4841 line_end_overshoot,
4842 layout,
4843 window,
4844 );
4845 }
4846
4847 let corner_radius = 0.15 * layout.position_map.line_height;
4848
4849 for (player_color, selections) in &layout.selections {
4850 for selection in selections.iter() {
4851 self.paint_highlighted_range(
4852 selection.range.clone(),
4853 player_color.selection,
4854 corner_radius,
4855 corner_radius * 2.,
4856 layout,
4857 window,
4858 );
4859
4860 if selection.is_local && !selection.range.is_empty() {
4861 invisible_display_ranges.push(selection.range.clone());
4862 }
4863 }
4864 }
4865 invisible_display_ranges
4866 })
4867 }
4868
4869 fn paint_lines(
4870 &mut self,
4871 invisible_display_ranges: &[Range<DisplayPoint>],
4872 layout: &mut EditorLayout,
4873 window: &mut Window,
4874 cx: &mut App,
4875 ) {
4876 let whitespace_setting = self
4877 .editor
4878 .read(cx)
4879 .buffer
4880 .read(cx)
4881 .settings_at(0, cx)
4882 .show_whitespaces;
4883
4884 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4885 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4886 line_with_invisibles.draw(
4887 layout,
4888 row,
4889 layout.content_origin,
4890 whitespace_setting,
4891 invisible_display_ranges,
4892 window,
4893 cx,
4894 )
4895 }
4896
4897 for line_element in &mut layout.line_elements {
4898 line_element.paint(window, cx);
4899 }
4900 }
4901
4902 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4903 if layout.redacted_ranges.is_empty() {
4904 return;
4905 }
4906
4907 let line_end_overshoot = layout.line_end_overshoot();
4908
4909 // A softer than perfect black
4910 let redaction_color = gpui::rgb(0x0e1111);
4911
4912 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4913 for range in layout.redacted_ranges.iter() {
4914 self.paint_highlighted_range(
4915 range.clone(),
4916 redaction_color.into(),
4917 Pixels::ZERO,
4918 line_end_overshoot,
4919 layout,
4920 window,
4921 );
4922 }
4923 });
4924 }
4925
4926 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4927 for cursor in &mut layout.visible_cursors {
4928 cursor.paint(layout.content_origin, window, cx);
4929 }
4930 }
4931
4932 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4933 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4934
4935 if let Some(scrollbar_layout) = scrollbar_x {
4936 let hitbox = scrollbar_layout.hitbox.clone();
4937 let text_unit_size = scrollbar_layout.text_unit_size;
4938 let visible_range = scrollbar_layout.visible_range.clone();
4939 let thumb_bounds = scrollbar_layout.thumb_bounds();
4940
4941 if scrollbar_layout.visible {
4942 window.paint_layer(hitbox.bounds, |window| {
4943 window.paint_quad(quad(
4944 hitbox.bounds,
4945 Corners::default(),
4946 cx.theme().colors().scrollbar_track_background,
4947 Edges {
4948 top: Pixels::ZERO,
4949 right: Pixels::ZERO,
4950 bottom: Pixels::ZERO,
4951 left: Pixels::ZERO,
4952 },
4953 cx.theme().colors().scrollbar_track_border,
4954 ));
4955
4956 window.paint_quad(quad(
4957 thumb_bounds,
4958 Corners::default(),
4959 cx.theme().colors().scrollbar_thumb_background,
4960 Edges {
4961 top: Pixels::ZERO,
4962 right: Pixels::ZERO,
4963 bottom: Pixels::ZERO,
4964 left: ScrollbarLayout::BORDER_WIDTH,
4965 },
4966 cx.theme().colors().scrollbar_thumb_border,
4967 ));
4968 })
4969 }
4970
4971 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4972
4973 window.on_mouse_event({
4974 let editor = self.editor.clone();
4975
4976 // there may be a way to avoid this clone
4977 let hitbox = hitbox.clone();
4978
4979 let mut mouse_position = window.mouse_position();
4980 move |event: &MouseMoveEvent, phase, window, cx| {
4981 if phase == DispatchPhase::Capture {
4982 return;
4983 }
4984
4985 editor.update(cx, |editor, cx| {
4986 if event.pressed_button == Some(MouseButton::Left)
4987 && editor
4988 .scroll_manager
4989 .is_dragging_scrollbar(Axis::Horizontal)
4990 {
4991 let x = mouse_position.x;
4992 let new_x = event.position.x;
4993 if (hitbox.left()..hitbox.right()).contains(&x) {
4994 let mut position = editor.scroll_position(cx);
4995
4996 position.x += (new_x - x) / text_unit_size;
4997 if position.x < 0.0 {
4998 position.x = 0.0;
4999 }
5000 editor.set_scroll_position(position, window, cx);
5001 }
5002
5003 cx.stop_propagation();
5004 } else {
5005 editor.scroll_manager.set_is_dragging_scrollbar(
5006 Axis::Horizontal,
5007 false,
5008 cx,
5009 );
5010
5011 if hitbox.is_hovered(window) {
5012 editor.scroll_manager.show_scrollbar(window, cx);
5013 }
5014 }
5015 mouse_position = event.position;
5016 })
5017 }
5018 });
5019
5020 if self
5021 .editor
5022 .read(cx)
5023 .scroll_manager
5024 .is_dragging_scrollbar(Axis::Horizontal)
5025 {
5026 window.on_mouse_event({
5027 let editor = self.editor.clone();
5028 move |_: &MouseUpEvent, phase, _, cx| {
5029 if phase == DispatchPhase::Capture {
5030 return;
5031 }
5032
5033 editor.update(cx, |editor, cx| {
5034 editor.scroll_manager.set_is_dragging_scrollbar(
5035 Axis::Horizontal,
5036 false,
5037 cx,
5038 );
5039 cx.stop_propagation();
5040 });
5041 }
5042 });
5043 } else {
5044 window.on_mouse_event({
5045 let editor = self.editor.clone();
5046
5047 move |event: &MouseDownEvent, phase, window, cx| {
5048 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5049 return;
5050 }
5051
5052 editor.update(cx, |editor, cx| {
5053 editor.scroll_manager.set_is_dragging_scrollbar(
5054 Axis::Horizontal,
5055 true,
5056 cx,
5057 );
5058
5059 let x = event.position.x;
5060
5061 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5062 let center_row =
5063 ((x - hitbox.left()) / text_unit_size).round() as u32;
5064 let top_row = center_row.saturating_sub(
5065 (visible_range.end - visible_range.start) as u32 / 2,
5066 );
5067
5068 let mut position = editor.scroll_position(cx);
5069 position.x = top_row as f32;
5070
5071 editor.set_scroll_position(position, window, cx);
5072 } else {
5073 editor.scroll_manager.show_scrollbar(window, cx);
5074 }
5075
5076 cx.stop_propagation();
5077 });
5078 }
5079 });
5080 }
5081 }
5082
5083 if let Some(scrollbar_layout) = scrollbar_y {
5084 let hitbox = scrollbar_layout.hitbox.clone();
5085 let text_unit_size = scrollbar_layout.text_unit_size;
5086 let visible_range = scrollbar_layout.visible_range.clone();
5087 let thumb_bounds = scrollbar_layout.thumb_bounds();
5088
5089 if scrollbar_layout.visible {
5090 window.paint_layer(hitbox.bounds, |window| {
5091 window.paint_quad(quad(
5092 hitbox.bounds,
5093 Corners::default(),
5094 cx.theme().colors().scrollbar_track_background,
5095 Edges {
5096 top: Pixels::ZERO,
5097 right: Pixels::ZERO,
5098 bottom: Pixels::ZERO,
5099 left: ScrollbarLayout::BORDER_WIDTH,
5100 },
5101 cx.theme().colors().scrollbar_track_border,
5102 ));
5103
5104 let fast_markers =
5105 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5106 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5107 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5108
5109 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5110 for marker in markers.iter().chain(&fast_markers) {
5111 let mut marker = marker.clone();
5112 marker.bounds.origin += hitbox.origin;
5113 window.paint_quad(marker);
5114 }
5115
5116 window.paint_quad(quad(
5117 thumb_bounds,
5118 Corners::default(),
5119 cx.theme().colors().scrollbar_thumb_background,
5120 Edges {
5121 top: Pixels::ZERO,
5122 right: Pixels::ZERO,
5123 bottom: Pixels::ZERO,
5124 left: ScrollbarLayout::BORDER_WIDTH,
5125 },
5126 cx.theme().colors().scrollbar_thumb_border,
5127 ));
5128 });
5129 }
5130
5131 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5132
5133 window.on_mouse_event({
5134 let editor = self.editor.clone();
5135
5136 let hitbox = hitbox.clone();
5137
5138 let mut mouse_position = window.mouse_position();
5139 move |event: &MouseMoveEvent, phase, window, cx| {
5140 if phase == DispatchPhase::Capture {
5141 return;
5142 }
5143
5144 editor.update(cx, |editor, cx| {
5145 if event.pressed_button == Some(MouseButton::Left)
5146 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5147 {
5148 let y = mouse_position.y;
5149 let new_y = event.position.y;
5150 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5151 let mut position = editor.scroll_position(cx);
5152 position.y += (new_y - y) / text_unit_size;
5153 if position.y < 0.0 {
5154 position.y = 0.0;
5155 }
5156 editor.set_scroll_position(position, window, cx);
5157 }
5158 } else {
5159 editor.scroll_manager.set_is_dragging_scrollbar(
5160 Axis::Vertical,
5161 false,
5162 cx,
5163 );
5164
5165 if hitbox.is_hovered(window) {
5166 editor.scroll_manager.show_scrollbar(window, cx);
5167 }
5168 }
5169 mouse_position = event.position;
5170 })
5171 }
5172 });
5173
5174 if self
5175 .editor
5176 .read(cx)
5177 .scroll_manager
5178 .is_dragging_scrollbar(Axis::Vertical)
5179 {
5180 window.on_mouse_event({
5181 let editor = self.editor.clone();
5182 move |_: &MouseUpEvent, phase, _, cx| {
5183 if phase == DispatchPhase::Capture {
5184 return;
5185 }
5186
5187 editor.update(cx, |editor, cx| {
5188 editor.scroll_manager.set_is_dragging_scrollbar(
5189 Axis::Vertical,
5190 false,
5191 cx,
5192 );
5193 cx.stop_propagation();
5194 });
5195 }
5196 });
5197 } else {
5198 window.on_mouse_event({
5199 let editor = self.editor.clone();
5200
5201 move |event: &MouseDownEvent, phase, window, cx| {
5202 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5203 return;
5204 }
5205
5206 editor.update(cx, |editor, cx| {
5207 editor.scroll_manager.set_is_dragging_scrollbar(
5208 Axis::Vertical,
5209 true,
5210 cx,
5211 );
5212
5213 let y = event.position.y;
5214 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5215 let center_row =
5216 ((y - hitbox.top()) / text_unit_size).round() as u32;
5217 let top_row = center_row.saturating_sub(
5218 (visible_range.end - visible_range.start) as u32 / 2,
5219 );
5220 let mut position = editor.scroll_position(cx);
5221 position.y = top_row as f32;
5222 editor.set_scroll_position(position, window, cx);
5223 } else {
5224 editor.scroll_manager.show_scrollbar(window, cx);
5225 }
5226
5227 cx.stop_propagation();
5228 });
5229 }
5230 });
5231 }
5232 }
5233 }
5234
5235 fn collect_fast_scrollbar_markers(
5236 &self,
5237 layout: &EditorLayout,
5238 scrollbar_layout: &ScrollbarLayout,
5239 cx: &mut App,
5240 ) -> Vec<PaintQuad> {
5241 const LIMIT: usize = 100;
5242 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5243 return vec![];
5244 }
5245 let cursor_ranges = layout
5246 .cursors
5247 .iter()
5248 .map(|(point, color)| ColoredRange {
5249 start: point.row(),
5250 end: point.row(),
5251 color: *color,
5252 })
5253 .collect_vec();
5254 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5255 }
5256
5257 fn refresh_slow_scrollbar_markers(
5258 &self,
5259 layout: &EditorLayout,
5260 scrollbar_layout: &ScrollbarLayout,
5261 window: &mut Window,
5262 cx: &mut App,
5263 ) {
5264 self.editor.update(cx, |editor, cx| {
5265 if !editor.is_singleton(cx)
5266 || !editor
5267 .scrollbar_marker_state
5268 .should_refresh(scrollbar_layout.hitbox.size)
5269 {
5270 return;
5271 }
5272
5273 let scrollbar_layout = scrollbar_layout.clone();
5274 let background_highlights = editor.background_highlights.clone();
5275 let snapshot = layout.position_map.snapshot.clone();
5276 let theme = cx.theme().clone();
5277 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5278
5279 editor.scrollbar_marker_state.dirty = false;
5280 editor.scrollbar_marker_state.pending_refresh =
5281 Some(cx.spawn_in(window, |editor, mut cx| async move {
5282 let scrollbar_size = scrollbar_layout.hitbox.size;
5283 let scrollbar_markers = cx
5284 .background_spawn(async move {
5285 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5286 let mut marker_quads = Vec::new();
5287 if scrollbar_settings.git_diff {
5288 let marker_row_ranges =
5289 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5290 let start_display_row =
5291 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5292 .to_display_point(&snapshot.display_snapshot)
5293 .row();
5294 let mut end_display_row =
5295 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5296 .to_display_point(&snapshot.display_snapshot)
5297 .row();
5298 if end_display_row != start_display_row {
5299 end_display_row.0 -= 1;
5300 }
5301 let color = match &hunk.status() {
5302 DiffHunkStatus::Added(_) => theme.status().created,
5303 DiffHunkStatus::Modified(_) => theme.status().modified,
5304 DiffHunkStatus::Removed(_) => theme.status().deleted,
5305 };
5306 ColoredRange {
5307 start: start_display_row,
5308 end: end_display_row,
5309 color,
5310 }
5311 });
5312
5313 marker_quads.extend(
5314 scrollbar_layout
5315 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5316 );
5317 }
5318
5319 for (background_highlight_id, (_, background_ranges)) in
5320 background_highlights.iter()
5321 {
5322 let is_search_highlights = *background_highlight_id
5323 == TypeId::of::<BufferSearchHighlights>();
5324 let is_text_highlights = *background_highlight_id
5325 == TypeId::of::<SelectedTextHighlight>();
5326 let is_symbol_occurrences = *background_highlight_id
5327 == TypeId::of::<DocumentHighlightRead>()
5328 || *background_highlight_id
5329 == TypeId::of::<DocumentHighlightWrite>();
5330 if (is_search_highlights && scrollbar_settings.search_results)
5331 || (is_text_highlights && scrollbar_settings.selected_text)
5332 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5333 {
5334 let mut color = theme.status().info;
5335 if is_symbol_occurrences {
5336 color.fade_out(0.5);
5337 }
5338 let marker_row_ranges = background_ranges.iter().map(|range| {
5339 let display_start = range
5340 .start
5341 .to_display_point(&snapshot.display_snapshot);
5342 let display_end =
5343 range.end.to_display_point(&snapshot.display_snapshot);
5344 ColoredRange {
5345 start: display_start.row(),
5346 end: display_end.row(),
5347 color,
5348 }
5349 });
5350 marker_quads.extend(
5351 scrollbar_layout
5352 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5353 );
5354 }
5355 }
5356
5357 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5358 let diagnostics = snapshot
5359 .buffer_snapshot
5360 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5361 // Don't show diagnostics the user doesn't care about
5362 .filter(|diagnostic| {
5363 match (
5364 scrollbar_settings.diagnostics,
5365 diagnostic.diagnostic.severity,
5366 ) {
5367 (ScrollbarDiagnostics::All, _) => true,
5368 (
5369 ScrollbarDiagnostics::Error,
5370 DiagnosticSeverity::ERROR,
5371 ) => true,
5372 (
5373 ScrollbarDiagnostics::Warning,
5374 DiagnosticSeverity::ERROR
5375 | DiagnosticSeverity::WARNING,
5376 ) => true,
5377 (
5378 ScrollbarDiagnostics::Information,
5379 DiagnosticSeverity::ERROR
5380 | DiagnosticSeverity::WARNING
5381 | DiagnosticSeverity::INFORMATION,
5382 ) => true,
5383 (_, _) => false,
5384 }
5385 })
5386 // We want to sort by severity, in order to paint the most severe diagnostics last.
5387 .sorted_by_key(|diagnostic| {
5388 std::cmp::Reverse(diagnostic.diagnostic.severity)
5389 });
5390
5391 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5392 let start_display = diagnostic
5393 .range
5394 .start
5395 .to_display_point(&snapshot.display_snapshot);
5396 let end_display = diagnostic
5397 .range
5398 .end
5399 .to_display_point(&snapshot.display_snapshot);
5400 let color = match diagnostic.diagnostic.severity {
5401 DiagnosticSeverity::ERROR => theme.status().error,
5402 DiagnosticSeverity::WARNING => theme.status().warning,
5403 DiagnosticSeverity::INFORMATION => theme.status().info,
5404 _ => theme.status().hint,
5405 };
5406 ColoredRange {
5407 start: start_display.row(),
5408 end: end_display.row(),
5409 color,
5410 }
5411 });
5412 marker_quads.extend(
5413 scrollbar_layout
5414 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5415 );
5416 }
5417
5418 Arc::from(marker_quads)
5419 })
5420 .await;
5421
5422 editor.update(&mut cx, |editor, cx| {
5423 editor.scrollbar_marker_state.markers = scrollbar_markers;
5424 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5425 editor.scrollbar_marker_state.pending_refresh = None;
5426 cx.notify();
5427 })?;
5428
5429 Ok(())
5430 }));
5431 });
5432 }
5433
5434 #[allow(clippy::too_many_arguments)]
5435 fn paint_highlighted_range(
5436 &self,
5437 range: Range<DisplayPoint>,
5438 color: Hsla,
5439 corner_radius: Pixels,
5440 line_end_overshoot: Pixels,
5441 layout: &EditorLayout,
5442 window: &mut Window,
5443 ) {
5444 let start_row = layout.visible_display_row_range.start;
5445 let end_row = layout.visible_display_row_range.end;
5446 if range.start != range.end {
5447 let row_range = if range.end.column() == 0 {
5448 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5449 } else {
5450 cmp::max(range.start.row(), start_row)
5451 ..cmp::min(range.end.row().next_row(), end_row)
5452 };
5453
5454 let highlighted_range = HighlightedRange {
5455 color,
5456 line_height: layout.position_map.line_height,
5457 corner_radius,
5458 start_y: layout.content_origin.y
5459 + row_range.start.as_f32() * layout.position_map.line_height
5460 - layout.position_map.scroll_pixel_position.y,
5461 lines: row_range
5462 .iter_rows()
5463 .map(|row| {
5464 let line_layout =
5465 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5466 HighlightedRangeLine {
5467 start_x: if row == range.start.row() {
5468 layout.content_origin.x
5469 + line_layout.x_for_index(range.start.column() as usize)
5470 - layout.position_map.scroll_pixel_position.x
5471 } else {
5472 layout.content_origin.x
5473 - layout.position_map.scroll_pixel_position.x
5474 },
5475 end_x: if row == range.end.row() {
5476 layout.content_origin.x
5477 + line_layout.x_for_index(range.end.column() as usize)
5478 - layout.position_map.scroll_pixel_position.x
5479 } else {
5480 layout.content_origin.x + line_layout.width + line_end_overshoot
5481 - layout.position_map.scroll_pixel_position.x
5482 },
5483 }
5484 })
5485 .collect(),
5486 };
5487
5488 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5489 }
5490 }
5491
5492 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5493 if let Some(mut inline_blame) = layout.inline_blame.take() {
5494 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5495 inline_blame.paint(window, cx);
5496 })
5497 }
5498 }
5499
5500 fn paint_diff_hunk_controls(
5501 &mut self,
5502 layout: &mut EditorLayout,
5503 window: &mut Window,
5504 cx: &mut App,
5505 ) {
5506 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5507 diff_hunk_control.paint(window, cx);
5508 }
5509 }
5510
5511 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5512 for mut block in layout.blocks.drain(..) {
5513 block.element.paint(window, cx);
5514 }
5515 }
5516
5517 fn paint_inline_completion_popover(
5518 &mut self,
5519 layout: &mut EditorLayout,
5520 window: &mut Window,
5521 cx: &mut App,
5522 ) {
5523 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5524 inline_completion_popover.paint(window, cx);
5525 }
5526 }
5527
5528 fn paint_mouse_context_menu(
5529 &mut self,
5530 layout: &mut EditorLayout,
5531 window: &mut Window,
5532 cx: &mut App,
5533 ) {
5534 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5535 mouse_context_menu.paint(window, cx);
5536 }
5537 }
5538
5539 fn paint_scroll_wheel_listener(
5540 &mut self,
5541 layout: &EditorLayout,
5542 window: &mut Window,
5543 cx: &mut App,
5544 ) {
5545 window.on_mouse_event({
5546 let position_map = layout.position_map.clone();
5547 let editor = self.editor.clone();
5548 let hitbox = layout.hitbox.clone();
5549 let mut delta = ScrollDelta::default();
5550
5551 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5552 // accidentally turn off their scrolling.
5553 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5554
5555 move |event: &ScrollWheelEvent, phase, window, cx| {
5556 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5557 delta = delta.coalesce(event.delta);
5558 editor.update(cx, |editor, cx| {
5559 let position_map: &PositionMap = &position_map;
5560
5561 let line_height = position_map.line_height;
5562 let max_glyph_width = position_map.em_width;
5563 let (delta, axis) = match delta {
5564 gpui::ScrollDelta::Pixels(mut pixels) => {
5565 //Trackpad
5566 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5567 (pixels, axis)
5568 }
5569
5570 gpui::ScrollDelta::Lines(lines) => {
5571 //Not trackpad
5572 let pixels =
5573 point(lines.x * max_glyph_width, lines.y * line_height);
5574 (pixels, None)
5575 }
5576 };
5577
5578 let current_scroll_position = position_map.snapshot.scroll_position();
5579 let x = (current_scroll_position.x * max_glyph_width
5580 - (delta.x * scroll_sensitivity))
5581 / max_glyph_width;
5582 let y = (current_scroll_position.y * line_height
5583 - (delta.y * scroll_sensitivity))
5584 / line_height;
5585 let mut scroll_position =
5586 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5587 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5588 if forbid_vertical_scroll {
5589 scroll_position.y = current_scroll_position.y;
5590 }
5591
5592 if scroll_position != current_scroll_position {
5593 editor.scroll(scroll_position, axis, window, cx);
5594 cx.stop_propagation();
5595 } else if y < 0. {
5596 // Due to clamping, we may fail to detect cases of overscroll to the top;
5597 // We want the scroll manager to get an update in such cases and detect the change of direction
5598 // on the next frame.
5599 cx.notify();
5600 }
5601 });
5602 }
5603 }
5604 });
5605 }
5606
5607 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5608 self.paint_scroll_wheel_listener(layout, window, cx);
5609
5610 window.on_mouse_event({
5611 let position_map = layout.position_map.clone();
5612 let editor = self.editor.clone();
5613 let diff_hunk_range =
5614 layout
5615 .display_hunks
5616 .iter()
5617 .find_map(|(hunk, hunk_hitbox)| match hunk {
5618 DisplayDiffHunk::Folded { .. } => None,
5619 DisplayDiffHunk::Unfolded {
5620 multi_buffer_range, ..
5621 } => {
5622 if hunk_hitbox
5623 .as_ref()
5624 .map(|hitbox| hitbox.is_hovered(window))
5625 .unwrap_or(false)
5626 {
5627 Some(multi_buffer_range.clone())
5628 } else {
5629 None
5630 }
5631 }
5632 });
5633 let line_numbers = layout.line_numbers.clone();
5634
5635 move |event: &MouseDownEvent, phase, window, cx| {
5636 if phase == DispatchPhase::Bubble {
5637 match event.button {
5638 MouseButton::Left => editor.update(cx, |editor, cx| {
5639 let pending_mouse_down = editor
5640 .pending_mouse_down
5641 .get_or_insert_with(Default::default)
5642 .clone();
5643
5644 *pending_mouse_down.borrow_mut() = Some(event.clone());
5645
5646 Self::mouse_left_down(
5647 editor,
5648 event,
5649 diff_hunk_range.clone(),
5650 &position_map,
5651 line_numbers.as_ref(),
5652 window,
5653 cx,
5654 );
5655 }),
5656 MouseButton::Right => editor.update(cx, |editor, cx| {
5657 Self::mouse_right_down(editor, event, &position_map, window, cx);
5658 }),
5659 MouseButton::Middle => editor.update(cx, |editor, cx| {
5660 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5661 }),
5662 _ => {}
5663 };
5664 }
5665 }
5666 });
5667
5668 window.on_mouse_event({
5669 let editor = self.editor.clone();
5670 let position_map = layout.position_map.clone();
5671
5672 move |event: &MouseUpEvent, phase, window, cx| {
5673 if phase == DispatchPhase::Bubble {
5674 editor.update(cx, |editor, cx| {
5675 Self::mouse_up(editor, event, &position_map, window, cx)
5676 });
5677 }
5678 }
5679 });
5680
5681 window.on_mouse_event({
5682 let editor = self.editor.clone();
5683 let position_map = layout.position_map.clone();
5684 let mut captured_mouse_down = None;
5685
5686 move |event: &MouseUpEvent, phase, window, cx| match phase {
5687 // Clear the pending mouse down during the capture phase,
5688 // so that it happens even if another event handler stops
5689 // propagation.
5690 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5691 let pending_mouse_down = editor
5692 .pending_mouse_down
5693 .get_or_insert_with(Default::default)
5694 .clone();
5695
5696 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5697 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5698 captured_mouse_down = pending_mouse_down.take();
5699 window.refresh();
5700 }
5701 }),
5702 // Fire click handlers during the bubble phase.
5703 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5704 if let Some(mouse_down) = captured_mouse_down.take() {
5705 let event = ClickEvent {
5706 down: mouse_down,
5707 up: event.clone(),
5708 };
5709 Self::click(editor, &event, &position_map, window, cx);
5710 }
5711 }),
5712 }
5713 });
5714
5715 window.on_mouse_event({
5716 let position_map = layout.position_map.clone();
5717 let editor = self.editor.clone();
5718
5719 move |event: &MouseMoveEvent, phase, window, cx| {
5720 if phase == DispatchPhase::Bubble {
5721 editor.update(cx, |editor, cx| {
5722 if editor.hover_state.focused(window, cx) {
5723 return;
5724 }
5725 if event.pressed_button == Some(MouseButton::Left)
5726 || event.pressed_button == Some(MouseButton::Middle)
5727 {
5728 Self::mouse_dragged(editor, event, &position_map, window, cx)
5729 }
5730
5731 Self::mouse_moved(editor, event, &position_map, window, cx)
5732 });
5733 }
5734 }
5735 });
5736 }
5737
5738 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5739 bounds.top_right().x - self.style.scrollbar_width
5740 }
5741
5742 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5743 let style = &self.style;
5744 let font_size = style.text.font_size.to_pixels(window.rem_size());
5745 let layout = window
5746 .text_system()
5747 .shape_line(
5748 SharedString::from(" ".repeat(column)),
5749 font_size,
5750 &[TextRun {
5751 len: column,
5752 font: style.text.font(),
5753 color: Hsla::default(),
5754 background_color: None,
5755 underline: None,
5756 strikethrough: None,
5757 }],
5758 )
5759 .unwrap();
5760
5761 layout.width
5762 }
5763
5764 fn max_line_number_width(
5765 &self,
5766 snapshot: &EditorSnapshot,
5767 window: &mut Window,
5768 cx: &mut App,
5769 ) -> Pixels {
5770 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5771 self.column_pixels(digit_count, window, cx)
5772 }
5773
5774 fn shape_line_number(
5775 &self,
5776 text: SharedString,
5777 color: Hsla,
5778 window: &mut Window,
5779 ) -> anyhow::Result<ShapedLine> {
5780 let run = TextRun {
5781 len: text.len(),
5782 font: self.style.text.font(),
5783 color,
5784 background_color: None,
5785 underline: None,
5786 strikethrough: None,
5787 };
5788 window.text_system().shape_line(
5789 text,
5790 self.style.text.font_size.to_pixels(window.rem_size()),
5791 &[run],
5792 )
5793 }
5794}
5795
5796fn header_jump_data(
5797 snapshot: &EditorSnapshot,
5798 block_row_start: DisplayRow,
5799 height: u32,
5800 for_excerpt: &ExcerptInfo,
5801) -> JumpData {
5802 let range = &for_excerpt.range;
5803 let buffer = &for_excerpt.buffer;
5804 let jump_anchor = range
5805 .primary
5806 .as_ref()
5807 .map_or(range.context.start, |primary| primary.start);
5808
5809 let excerpt_start = range.context.start;
5810 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5811 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5812 0
5813 } else {
5814 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5815 jump_position.row.saturating_sub(excerpt_start_point.row)
5816 };
5817
5818 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5819 .saturating_sub(
5820 snapshot
5821 .scroll_anchor
5822 .scroll_position(&snapshot.display_snapshot)
5823 .y as u32,
5824 );
5825
5826 JumpData::MultiBufferPoint {
5827 excerpt_id: for_excerpt.id,
5828 anchor: jump_anchor,
5829 position: jump_position,
5830 line_offset_from_top,
5831 }
5832}
5833
5834pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5835
5836impl AcceptEditPredictionBinding {
5837 pub fn keystroke(&self) -> Option<&Keystroke> {
5838 if let Some(binding) = self.0.as_ref() {
5839 match &binding.keystrokes() {
5840 [keystroke] => Some(keystroke),
5841 _ => None,
5842 }
5843 } else {
5844 None
5845 }
5846 }
5847}
5848
5849#[allow(clippy::too_many_arguments)]
5850fn prepaint_gutter_button(
5851 button: IconButton,
5852 row: DisplayRow,
5853 line_height: Pixels,
5854 gutter_dimensions: &GutterDimensions,
5855 scroll_pixel_position: gpui::Point<Pixels>,
5856 gutter_hitbox: &Hitbox,
5857 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5858 window: &mut Window,
5859 cx: &mut App,
5860) -> AnyElement {
5861 let mut button = button.into_any_element();
5862 let available_space = size(
5863 AvailableSpace::MinContent,
5864 AvailableSpace::Definite(line_height),
5865 );
5866 let indicator_size = button.layout_as_root(available_space, window, cx);
5867
5868 let blame_width = gutter_dimensions.git_blame_entries_width;
5869 let gutter_width = rows_with_hunk_bounds
5870 .get(&row)
5871 .map(|bounds| bounds.size.width);
5872 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5873
5874 let mut x = left_offset;
5875 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5876 - indicator_size.width
5877 - left_offset;
5878 x += available_width / 2.;
5879
5880 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5881 y += (line_height - indicator_size.height) / 2.;
5882
5883 button.prepaint_as_root(
5884 gutter_hitbox.origin + point(x, y),
5885 available_space,
5886 window,
5887 cx,
5888 );
5889 button
5890}
5891
5892fn render_inline_blame_entry(
5893 editor: Entity<Editor>,
5894 blame: &gpui::Entity<GitBlame>,
5895 blame_entry: BlameEntry,
5896 style: &EditorStyle,
5897 cx: &mut App,
5898) -> AnyElement {
5899 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5900
5901 let author = blame_entry.author.as_deref().unwrap_or_default();
5902 let summary_enabled = ProjectSettings::get_global(cx)
5903 .git
5904 .show_inline_commit_summary();
5905
5906 let text = match blame_entry.summary.as_ref() {
5907 Some(summary) if summary_enabled => {
5908 format!("{}, {} - {}", author, relative_timestamp, summary)
5909 }
5910 _ => format!("{}, {}", author, relative_timestamp),
5911 };
5912 let blame = blame.clone();
5913 let blame_entry = blame_entry.clone();
5914
5915 h_flex()
5916 .id("inline-blame")
5917 .w_full()
5918 .font_family(style.text.font().family)
5919 .text_color(cx.theme().status().hint)
5920 .line_height(style.text.line_height)
5921 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5922 .child(text)
5923 .gap_2()
5924 .hoverable_tooltip(move |window, cx| {
5925 let details = blame.read(cx).details_for_entry(&blame_entry);
5926 let tooltip =
5927 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5928 editor.update(cx, |editor, _| {
5929 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5930 });
5931 tooltip.into()
5932 })
5933 .into_any()
5934}
5935
5936fn render_blame_entry(
5937 ix: usize,
5938 blame: &gpui::Entity<GitBlame>,
5939 blame_entry: BlameEntry,
5940 style: &EditorStyle,
5941 last_used_color: &mut Option<(PlayerColor, Oid)>,
5942 editor: Entity<Editor>,
5943 cx: &mut App,
5944) -> AnyElement {
5945 let mut sha_color = cx
5946 .theme()
5947 .players()
5948 .color_for_participant(blame_entry.sha.into());
5949 // If the last color we used is the same as the one we get for this line, but
5950 // the commit SHAs are different, then we try again to get a different color.
5951 match *last_used_color {
5952 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5953 let index: u32 = blame_entry.sha.into();
5954 sha_color = cx.theme().players().color_for_participant(index + 1);
5955 }
5956 _ => {}
5957 };
5958 last_used_color.replace((sha_color, blame_entry.sha));
5959
5960 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5961
5962 let short_commit_id = blame_entry.sha.display_short();
5963
5964 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5965 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5966 let details = blame.read(cx).details_for_entry(&blame_entry);
5967
5968 h_flex()
5969 .w_full()
5970 .justify_between()
5971 .font_family(style.text.font().family)
5972 .line_height(style.text.line_height)
5973 .id(("blame", ix))
5974 .text_color(cx.theme().status().hint)
5975 .pr_2()
5976 .gap_2()
5977 .child(
5978 h_flex()
5979 .items_center()
5980 .gap_2()
5981 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5982 .child(name),
5983 )
5984 .child(relative_timestamp)
5985 .on_mouse_down(MouseButton::Right, {
5986 let blame_entry = blame_entry.clone();
5987 let details = details.clone();
5988 move |event, window, cx| {
5989 deploy_blame_entry_context_menu(
5990 &blame_entry,
5991 details.as_ref(),
5992 editor.clone(),
5993 event.position,
5994 window,
5995 cx,
5996 );
5997 }
5998 })
5999 .hover(|style| style.bg(cx.theme().colors().element_hover))
6000 .when_some(
6001 details
6002 .as_ref()
6003 .and_then(|details| details.permalink.clone()),
6004 |this, url| {
6005 this.cursor_pointer().on_click(move |_, _, cx| {
6006 cx.stop_propagation();
6007 cx.open_url(url.as_str())
6008 })
6009 },
6010 )
6011 .hoverable_tooltip(move |window, cx| {
6012 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
6013 .into()
6014 })
6015 .into_any()
6016}
6017
6018fn deploy_blame_entry_context_menu(
6019 blame_entry: &BlameEntry,
6020 details: Option<&ParsedCommitMessage>,
6021 editor: Entity<Editor>,
6022 position: gpui::Point<Pixels>,
6023 window: &mut Window,
6024 cx: &mut App,
6025) {
6026 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6027 let sha = format!("{}", blame_entry.sha);
6028 menu.on_blur_subscription(Subscription::new(|| {}))
6029 .entry("Copy commit SHA", None, move |_, cx| {
6030 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6031 })
6032 .when_some(
6033 details.and_then(|details| details.permalink.clone()),
6034 |this, url| {
6035 this.entry("Open permalink", None, move |_, cx| {
6036 cx.open_url(url.as_str())
6037 })
6038 },
6039 )
6040 });
6041
6042 editor.update(cx, move |editor, cx| {
6043 editor.mouse_context_menu = Some(MouseContextMenu::new(
6044 MenuPosition::PinnedToScreen(position),
6045 context_menu,
6046 window,
6047 cx,
6048 ));
6049 cx.notify();
6050 });
6051}
6052
6053#[derive(Debug)]
6054pub(crate) struct LineWithInvisibles {
6055 fragments: SmallVec<[LineFragment; 1]>,
6056 invisibles: Vec<Invisible>,
6057 len: usize,
6058 width: Pixels,
6059 font_size: Pixels,
6060}
6061
6062#[allow(clippy::large_enum_variant)]
6063enum LineFragment {
6064 Text(ShapedLine),
6065 Element {
6066 element: Option<AnyElement>,
6067 size: Size<Pixels>,
6068 len: usize,
6069 },
6070}
6071
6072impl fmt::Debug for LineFragment {
6073 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6074 match self {
6075 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6076 LineFragment::Element { size, len, .. } => f
6077 .debug_struct("Element")
6078 .field("size", size)
6079 .field("len", len)
6080 .finish(),
6081 }
6082 }
6083}
6084
6085impl LineWithInvisibles {
6086 #[allow(clippy::too_many_arguments)]
6087 fn from_chunks<'a>(
6088 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6089 editor_style: &EditorStyle,
6090 max_line_len: usize,
6091 max_line_count: usize,
6092 editor_mode: EditorMode,
6093 text_width: Pixels,
6094 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6095 window: &mut Window,
6096 cx: &mut App,
6097 ) -> Vec<Self> {
6098 let text_style = &editor_style.text;
6099 let mut layouts = Vec::with_capacity(max_line_count);
6100 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6101 let mut line = String::new();
6102 let mut invisibles = Vec::new();
6103 let mut width = Pixels::ZERO;
6104 let mut len = 0;
6105 let mut styles = Vec::new();
6106 let mut non_whitespace_added = false;
6107 let mut row = 0;
6108 let mut line_exceeded_max_len = false;
6109 let font_size = text_style.font_size.to_pixels(window.rem_size());
6110
6111 let ellipsis = SharedString::from("⋯");
6112
6113 for highlighted_chunk in chunks.chain([HighlightedChunk {
6114 text: "\n",
6115 style: None,
6116 is_tab: false,
6117 replacement: None,
6118 }]) {
6119 if let Some(replacement) = highlighted_chunk.replacement {
6120 if !line.is_empty() {
6121 let shaped_line = window
6122 .text_system()
6123 .shape_line(line.clone().into(), font_size, &styles)
6124 .unwrap();
6125 width += shaped_line.width;
6126 len += shaped_line.len;
6127 fragments.push(LineFragment::Text(shaped_line));
6128 line.clear();
6129 styles.clear();
6130 }
6131
6132 match replacement {
6133 ChunkReplacement::Renderer(renderer) => {
6134 let available_width = if renderer.constrain_width {
6135 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6136 ellipsis.clone()
6137 } else {
6138 SharedString::from(Arc::from(highlighted_chunk.text))
6139 };
6140 let shaped_line = window
6141 .text_system()
6142 .shape_line(
6143 chunk,
6144 font_size,
6145 &[text_style.to_run(highlighted_chunk.text.len())],
6146 )
6147 .unwrap();
6148 AvailableSpace::Definite(shaped_line.width)
6149 } else {
6150 AvailableSpace::MinContent
6151 };
6152
6153 let mut element = (renderer.render)(&mut ChunkRendererContext {
6154 context: cx,
6155 window,
6156 max_width: text_width,
6157 });
6158 let line_height = text_style.line_height_in_pixels(window.rem_size());
6159 let size = element.layout_as_root(
6160 size(available_width, AvailableSpace::Definite(line_height)),
6161 window,
6162 cx,
6163 );
6164
6165 width += size.width;
6166 len += highlighted_chunk.text.len();
6167 fragments.push(LineFragment::Element {
6168 element: Some(element),
6169 size,
6170 len: highlighted_chunk.text.len(),
6171 });
6172 }
6173 ChunkReplacement::Str(x) => {
6174 let text_style = if let Some(style) = highlighted_chunk.style {
6175 Cow::Owned(text_style.clone().highlight(style))
6176 } else {
6177 Cow::Borrowed(text_style)
6178 };
6179
6180 let run = TextRun {
6181 len: x.len(),
6182 font: text_style.font(),
6183 color: text_style.color,
6184 background_color: text_style.background_color,
6185 underline: text_style.underline,
6186 strikethrough: text_style.strikethrough,
6187 };
6188 let line_layout = window
6189 .text_system()
6190 .shape_line(x, font_size, &[run])
6191 .unwrap()
6192 .with_len(highlighted_chunk.text.len());
6193
6194 width += line_layout.width;
6195 len += highlighted_chunk.text.len();
6196 fragments.push(LineFragment::Text(line_layout))
6197 }
6198 }
6199 } else {
6200 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6201 if ix > 0 {
6202 let shaped_line = window
6203 .text_system()
6204 .shape_line(line.clone().into(), font_size, &styles)
6205 .unwrap();
6206 width += shaped_line.width;
6207 len += shaped_line.len;
6208 fragments.push(LineFragment::Text(shaped_line));
6209 layouts.push(Self {
6210 width: mem::take(&mut width),
6211 len: mem::take(&mut len),
6212 fragments: mem::take(&mut fragments),
6213 invisibles: std::mem::take(&mut invisibles),
6214 font_size,
6215 });
6216
6217 line.clear();
6218 styles.clear();
6219 row += 1;
6220 line_exceeded_max_len = false;
6221 non_whitespace_added = false;
6222 if row == max_line_count {
6223 return layouts;
6224 }
6225 }
6226
6227 if !line_chunk.is_empty() && !line_exceeded_max_len {
6228 let text_style = if let Some(style) = highlighted_chunk.style {
6229 Cow::Owned(text_style.clone().highlight(style))
6230 } else {
6231 Cow::Borrowed(text_style)
6232 };
6233
6234 if line.len() + line_chunk.len() > max_line_len {
6235 let mut chunk_len = max_line_len - line.len();
6236 while !line_chunk.is_char_boundary(chunk_len) {
6237 chunk_len -= 1;
6238 }
6239 line_chunk = &line_chunk[..chunk_len];
6240 line_exceeded_max_len = true;
6241 }
6242
6243 styles.push(TextRun {
6244 len: line_chunk.len(),
6245 font: text_style.font(),
6246 color: text_style.color,
6247 background_color: text_style.background_color,
6248 underline: text_style.underline,
6249 strikethrough: text_style.strikethrough,
6250 });
6251
6252 if editor_mode == EditorMode::Full {
6253 // Line wrap pads its contents with fake whitespaces,
6254 // avoid printing them
6255 let is_soft_wrapped = is_row_soft_wrapped(row);
6256 if highlighted_chunk.is_tab {
6257 if non_whitespace_added || !is_soft_wrapped {
6258 invisibles.push(Invisible::Tab {
6259 line_start_offset: line.len(),
6260 line_end_offset: line.len() + line_chunk.len(),
6261 });
6262 }
6263 } else {
6264 invisibles.extend(line_chunk.char_indices().filter_map(
6265 |(index, c)| {
6266 let is_whitespace = c.is_whitespace();
6267 non_whitespace_added |= !is_whitespace;
6268 if is_whitespace
6269 && (non_whitespace_added || !is_soft_wrapped)
6270 {
6271 Some(Invisible::Whitespace {
6272 line_offset: line.len() + index,
6273 })
6274 } else {
6275 None
6276 }
6277 },
6278 ))
6279 }
6280 }
6281
6282 line.push_str(line_chunk);
6283 }
6284 }
6285 }
6286 }
6287
6288 layouts
6289 }
6290
6291 #[allow(clippy::too_many_arguments)]
6292 fn prepaint(
6293 &mut self,
6294 line_height: Pixels,
6295 scroll_pixel_position: gpui::Point<Pixels>,
6296 row: DisplayRow,
6297 content_origin: gpui::Point<Pixels>,
6298 line_elements: &mut SmallVec<[AnyElement; 1]>,
6299 window: &mut Window,
6300 cx: &mut App,
6301 ) {
6302 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6303 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6304 for fragment in &mut self.fragments {
6305 match fragment {
6306 LineFragment::Text(line) => {
6307 fragment_origin.x += line.width;
6308 }
6309 LineFragment::Element { element, size, .. } => {
6310 let mut element = element
6311 .take()
6312 .expect("you can't prepaint LineWithInvisibles twice");
6313
6314 // Center the element vertically within the line.
6315 let mut element_origin = fragment_origin;
6316 element_origin.y += (line_height - size.height) / 2.;
6317 element.prepaint_at(element_origin, window, cx);
6318 line_elements.push(element);
6319
6320 fragment_origin.x += size.width;
6321 }
6322 }
6323 }
6324 }
6325
6326 #[allow(clippy::too_many_arguments)]
6327 fn draw(
6328 &self,
6329 layout: &EditorLayout,
6330 row: DisplayRow,
6331 content_origin: gpui::Point<Pixels>,
6332 whitespace_setting: ShowWhitespaceSetting,
6333 selection_ranges: &[Range<DisplayPoint>],
6334 window: &mut Window,
6335 cx: &mut App,
6336 ) {
6337 let line_height = layout.position_map.line_height;
6338 let line_y = line_height
6339 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6340
6341 let mut fragment_origin =
6342 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6343
6344 for fragment in &self.fragments {
6345 match fragment {
6346 LineFragment::Text(line) => {
6347 line.paint(fragment_origin, line_height, window, cx)
6348 .log_err();
6349 fragment_origin.x += line.width;
6350 }
6351 LineFragment::Element { size, .. } => {
6352 fragment_origin.x += size.width;
6353 }
6354 }
6355 }
6356
6357 self.draw_invisibles(
6358 selection_ranges,
6359 layout,
6360 content_origin,
6361 line_y,
6362 row,
6363 line_height,
6364 whitespace_setting,
6365 window,
6366 cx,
6367 );
6368 }
6369
6370 #[allow(clippy::too_many_arguments)]
6371 fn draw_invisibles(
6372 &self,
6373 selection_ranges: &[Range<DisplayPoint>],
6374 layout: &EditorLayout,
6375 content_origin: gpui::Point<Pixels>,
6376 line_y: Pixels,
6377 row: DisplayRow,
6378 line_height: Pixels,
6379 whitespace_setting: ShowWhitespaceSetting,
6380 window: &mut Window,
6381 cx: &mut App,
6382 ) {
6383 let extract_whitespace_info = |invisible: &Invisible| {
6384 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6385 Invisible::Tab {
6386 line_start_offset,
6387 line_end_offset,
6388 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6389 Invisible::Whitespace { line_offset } => {
6390 (*line_offset, line_offset + 1, &layout.space_invisible)
6391 }
6392 };
6393
6394 let x_offset = self.x_for_index(token_offset);
6395 let invisible_offset =
6396 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6397 let origin = content_origin
6398 + gpui::point(
6399 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6400 line_y,
6401 );
6402
6403 (
6404 [token_offset, token_end_offset],
6405 Box::new(move |window: &mut Window, cx: &mut App| {
6406 invisible_symbol
6407 .paint(origin, line_height, window, cx)
6408 .log_err();
6409 }),
6410 )
6411 };
6412
6413 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6414 match whitespace_setting {
6415 ShowWhitespaceSetting::None => (),
6416 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6417 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6418 let invisible_point = DisplayPoint::new(row, start as u32);
6419 if !selection_ranges
6420 .iter()
6421 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6422 {
6423 return;
6424 }
6425
6426 paint(window, cx);
6427 }),
6428
6429 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6430 // - It is a tab
6431 // - It is adjacent to an edge (start or end)
6432 // - It is adjacent to a whitespace (left or right)
6433 ShowWhitespaceSetting::Boundary => {
6434 // 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
6435 // the above cases.
6436 // Note: We zip in the original `invisibles` to check for tab equality
6437 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6438 for (([start, end], paint), invisible) in
6439 invisible_iter.zip_eq(self.invisibles.iter())
6440 {
6441 let should_render = match (&last_seen, invisible) {
6442 (_, Invisible::Tab { .. }) => true,
6443 (Some((_, last_end, _)), _) => *last_end == start,
6444 _ => false,
6445 };
6446
6447 if should_render || start == 0 || end == self.len {
6448 paint(window, cx);
6449
6450 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6451 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6452 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6453 // Note that we need to make sure that the last one is actually adjacent
6454 if !should_render_last && last_end == start {
6455 paint_last(window, cx);
6456 }
6457 }
6458 }
6459
6460 // Manually render anything within a selection
6461 let invisible_point = DisplayPoint::new(row, start as u32);
6462 if selection_ranges.iter().any(|region| {
6463 region.start <= invisible_point && invisible_point < region.end
6464 }) {
6465 paint(window, cx);
6466 }
6467
6468 last_seen = Some((should_render, end, paint));
6469 }
6470 }
6471 }
6472 }
6473
6474 pub fn x_for_index(&self, index: usize) -> Pixels {
6475 let mut fragment_start_x = Pixels::ZERO;
6476 let mut fragment_start_index = 0;
6477
6478 for fragment in &self.fragments {
6479 match fragment {
6480 LineFragment::Text(shaped_line) => {
6481 let fragment_end_index = fragment_start_index + shaped_line.len;
6482 if index < fragment_end_index {
6483 return fragment_start_x
6484 + shaped_line.x_for_index(index - fragment_start_index);
6485 }
6486 fragment_start_x += shaped_line.width;
6487 fragment_start_index = fragment_end_index;
6488 }
6489 LineFragment::Element { len, size, .. } => {
6490 let fragment_end_index = fragment_start_index + len;
6491 if index < fragment_end_index {
6492 return fragment_start_x;
6493 }
6494 fragment_start_x += size.width;
6495 fragment_start_index = fragment_end_index;
6496 }
6497 }
6498 }
6499
6500 fragment_start_x
6501 }
6502
6503 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6504 let mut fragment_start_x = Pixels::ZERO;
6505 let mut fragment_start_index = 0;
6506
6507 for fragment in &self.fragments {
6508 match fragment {
6509 LineFragment::Text(shaped_line) => {
6510 let fragment_end_x = fragment_start_x + shaped_line.width;
6511 if x < fragment_end_x {
6512 return Some(
6513 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6514 );
6515 }
6516 fragment_start_x = fragment_end_x;
6517 fragment_start_index += shaped_line.len;
6518 }
6519 LineFragment::Element { len, size, .. } => {
6520 let fragment_end_x = fragment_start_x + size.width;
6521 if x < fragment_end_x {
6522 return Some(fragment_start_index);
6523 }
6524 fragment_start_index += len;
6525 fragment_start_x = fragment_end_x;
6526 }
6527 }
6528 }
6529
6530 None
6531 }
6532
6533 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6534 let mut fragment_start_index = 0;
6535
6536 for fragment in &self.fragments {
6537 match fragment {
6538 LineFragment::Text(shaped_line) => {
6539 let fragment_end_index = fragment_start_index + shaped_line.len;
6540 if index < fragment_end_index {
6541 return shaped_line.font_id_for_index(index - fragment_start_index);
6542 }
6543 fragment_start_index = fragment_end_index;
6544 }
6545 LineFragment::Element { len, .. } => {
6546 let fragment_end_index = fragment_start_index + len;
6547 if index < fragment_end_index {
6548 return None;
6549 }
6550 fragment_start_index = fragment_end_index;
6551 }
6552 }
6553 }
6554
6555 None
6556 }
6557}
6558
6559#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6560enum Invisible {
6561 /// A tab character
6562 ///
6563 /// A tab character is internally represented by spaces (configured by the user's tab width)
6564 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6565 /// adjacency checks.
6566 Tab {
6567 line_start_offset: usize,
6568 line_end_offset: usize,
6569 },
6570 Whitespace {
6571 line_offset: usize,
6572 },
6573}
6574
6575impl EditorElement {
6576 /// Returns the rem size to use when rendering the [`EditorElement`].
6577 ///
6578 /// This allows UI elements to scale based on the `buffer_font_size`.
6579 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6580 match self.editor.read(cx).mode {
6581 EditorMode::Full => {
6582 let buffer_font_size = self.style.text.font_size;
6583 match buffer_font_size {
6584 AbsoluteLength::Pixels(pixels) => {
6585 let rem_size_scale = {
6586 // Our default UI font size is 14px on a 16px base scale.
6587 // This means the default UI font size is 0.875rems.
6588 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6589
6590 // We then determine the delta between a single rem and the default font
6591 // size scale.
6592 let default_font_size_delta = 1. - default_font_size_scale;
6593
6594 // Finally, we add this delta to 1rem to get the scale factor that
6595 // should be used to scale up the UI.
6596 1. + default_font_size_delta
6597 };
6598
6599 Some(pixels * rem_size_scale)
6600 }
6601 AbsoluteLength::Rems(rems) => {
6602 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6603 }
6604 }
6605 }
6606 // We currently use single-line and auto-height editors in UI contexts,
6607 // so we don't want to scale everything with the buffer font size, as it
6608 // ends up looking off.
6609 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6610 }
6611 }
6612}
6613
6614impl Element for EditorElement {
6615 type RequestLayoutState = ();
6616 type PrepaintState = EditorLayout;
6617
6618 fn id(&self) -> Option<ElementId> {
6619 None
6620 }
6621
6622 fn request_layout(
6623 &mut self,
6624 _: Option<&GlobalElementId>,
6625 window: &mut Window,
6626 cx: &mut App,
6627 ) -> (gpui::LayoutId, ()) {
6628 let rem_size = self.rem_size(cx);
6629 window.with_rem_size(rem_size, |window| {
6630 self.editor.update(cx, |editor, cx| {
6631 editor.set_style(self.style.clone(), window, cx);
6632
6633 let layout_id = match editor.mode {
6634 EditorMode::SingleLine { auto_width } => {
6635 let rem_size = window.rem_size();
6636
6637 let height = self.style.text.line_height_in_pixels(rem_size);
6638 if auto_width {
6639 let editor_handle = cx.entity().clone();
6640 let style = self.style.clone();
6641 window.request_measured_layout(
6642 Style::default(),
6643 move |_, _, window, cx| {
6644 let editor_snapshot = editor_handle
6645 .update(cx, |editor, cx| editor.snapshot(window, cx));
6646 let line = Self::layout_lines(
6647 DisplayRow(0)..DisplayRow(1),
6648 &editor_snapshot,
6649 &style,
6650 px(f32::MAX),
6651 |_| false, // Single lines never soft wrap
6652 window,
6653 cx,
6654 )
6655 .pop()
6656 .unwrap();
6657
6658 let font_id =
6659 window.text_system().resolve_font(&style.text.font());
6660 let font_size =
6661 style.text.font_size.to_pixels(window.rem_size());
6662 let em_width =
6663 window.text_system().em_width(font_id, font_size).unwrap();
6664
6665 size(line.width + em_width, height)
6666 },
6667 )
6668 } else {
6669 let mut style = Style::default();
6670 style.size.height = height.into();
6671 style.size.width = relative(1.).into();
6672 window.request_layout(style, None, cx)
6673 }
6674 }
6675 EditorMode::AutoHeight { max_lines } => {
6676 let editor_handle = cx.entity().clone();
6677 let max_line_number_width =
6678 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6679 window.request_measured_layout(
6680 Style::default(),
6681 move |known_dimensions, available_space, window, cx| {
6682 editor_handle
6683 .update(cx, |editor, cx| {
6684 compute_auto_height_layout(
6685 editor,
6686 max_lines,
6687 max_line_number_width,
6688 known_dimensions,
6689 available_space.width,
6690 window,
6691 cx,
6692 )
6693 })
6694 .unwrap_or_default()
6695 },
6696 )
6697 }
6698 EditorMode::Full => {
6699 let mut style = Style::default();
6700 style.size.width = relative(1.).into();
6701 style.size.height = relative(1.).into();
6702 window.request_layout(style, None, cx)
6703 }
6704 };
6705
6706 (layout_id, ())
6707 })
6708 })
6709 }
6710
6711 fn prepaint(
6712 &mut self,
6713 _: Option<&GlobalElementId>,
6714 bounds: Bounds<Pixels>,
6715 _: &mut Self::RequestLayoutState,
6716 window: &mut Window,
6717 cx: &mut App,
6718 ) -> Self::PrepaintState {
6719 let text_style = TextStyleRefinement {
6720 font_size: Some(self.style.text.font_size),
6721 line_height: Some(self.style.text.line_height),
6722 ..Default::default()
6723 };
6724 let focus_handle = self.editor.focus_handle(cx);
6725 window.set_view_id(self.editor.entity_id());
6726 window.set_focus_handle(&focus_handle, cx);
6727
6728 let rem_size = self.rem_size(cx);
6729 window.with_rem_size(rem_size, |window| {
6730 window.with_text_style(Some(text_style), |window| {
6731 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6732 let mut snapshot = self
6733 .editor
6734 .update(cx, |editor, cx| editor.snapshot(window, cx));
6735 let style = self.style.clone();
6736
6737 let font_id = window.text_system().resolve_font(&style.text.font());
6738 let font_size = style.text.font_size.to_pixels(window.rem_size());
6739 let line_height = style.text.line_height_in_pixels(window.rem_size());
6740 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6741 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6742
6743 let letter_size = size(em_width, line_height);
6744
6745 let gutter_dimensions = snapshot
6746 .gutter_dimensions(
6747 font_id,
6748 font_size,
6749 self.max_line_number_width(&snapshot, window, cx),
6750 cx,
6751 )
6752 .unwrap_or_default();
6753 let text_width = bounds.size.width - gutter_dimensions.width;
6754
6755 let editor_width =
6756 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6757
6758 snapshot = self.editor.update(cx, |editor, cx| {
6759 editor.last_bounds = Some(bounds);
6760 editor.gutter_dimensions = gutter_dimensions;
6761 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6762
6763 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6764 snapshot
6765 } else {
6766 let wrap_width = match editor.soft_wrap_mode(cx) {
6767 SoftWrap::GitDiff => None,
6768 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6769 SoftWrap::EditorWidth => Some(editor_width),
6770 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6771 SoftWrap::Bounded(column) => {
6772 Some(editor_width.min(column as f32 * em_advance))
6773 }
6774 };
6775
6776 if editor.set_wrap_width(wrap_width, cx) {
6777 editor.snapshot(window, cx)
6778 } else {
6779 snapshot
6780 }
6781 }
6782 });
6783
6784 let wrap_guides = self
6785 .editor
6786 .read(cx)
6787 .wrap_guides(cx)
6788 .iter()
6789 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6790 .collect::<SmallVec<[_; 2]>>();
6791
6792 let hitbox = window.insert_hitbox(bounds, false);
6793 let gutter_hitbox =
6794 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6795 let text_hitbox = window.insert_hitbox(
6796 Bounds {
6797 origin: gutter_hitbox.top_right(),
6798 size: size(text_width, bounds.size.height),
6799 },
6800 false,
6801 );
6802 // Offset the content_bounds from the text_bounds by the gutter margin (which
6803 // is roughly half a character wide) to make hit testing work more like how we want.
6804 let content_origin =
6805 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6806
6807 let scrollbar_bounds =
6808 Bounds::from_corners(content_origin, bounds.bottom_right());
6809
6810 let height_in_lines = scrollbar_bounds.size.height / line_height;
6811
6812 // NOTE: The max row number in the current file, minus one
6813 let max_row = snapshot.max_point().row().as_f32();
6814
6815 // NOTE: The max scroll position for the top of the window
6816 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6817 (max_row - height_in_lines + 1.).max(0.)
6818 } else {
6819 let settings = EditorSettings::get_global(cx);
6820 match settings.scroll_beyond_last_line {
6821 ScrollBeyondLastLine::OnePage => max_row,
6822 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6823 ScrollBeyondLastLine::VerticalScrollMargin => {
6824 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6825 .max(0.)
6826 }
6827 }
6828 };
6829
6830 // TODO: Autoscrolling for both axes
6831 let mut autoscroll_request = None;
6832 let mut autoscroll_containing_element = false;
6833 let mut autoscroll_horizontally = false;
6834 self.editor.update(cx, |editor, cx| {
6835 autoscroll_request = editor.autoscroll_request();
6836 autoscroll_containing_element =
6837 autoscroll_request.is_some() || editor.has_pending_selection();
6838 // TODO: Is this horizontal or vertical?!
6839 autoscroll_horizontally = editor.autoscroll_vertically(
6840 bounds,
6841 line_height,
6842 max_scroll_top,
6843 window,
6844 cx,
6845 );
6846 snapshot = editor.snapshot(window, cx);
6847 });
6848
6849 let mut scroll_position = snapshot.scroll_position();
6850 // The scroll position is a fractional point, the whole number of which represents
6851 // the top of the window in terms of display rows.
6852 let start_row = DisplayRow(scroll_position.y as u32);
6853 let max_row = snapshot.max_point().row();
6854 let end_row = cmp::min(
6855 (scroll_position.y + height_in_lines).ceil() as u32,
6856 max_row.next_row().0,
6857 );
6858 let end_row = DisplayRow(end_row);
6859
6860 let row_infos = snapshot
6861 .row_infos(start_row)
6862 .take((start_row..end_row).len())
6863 .collect::<Vec<RowInfo>>();
6864 let is_row_soft_wrapped = |row: usize| {
6865 row_infos
6866 .get(row)
6867 .map_or(true, |info| info.buffer_row.is_none())
6868 };
6869
6870 let start_anchor = if start_row == Default::default() {
6871 Anchor::min()
6872 } else {
6873 snapshot.buffer_snapshot.anchor_before(
6874 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6875 )
6876 };
6877 let end_anchor = if end_row > max_row {
6878 Anchor::max()
6879 } else {
6880 snapshot.buffer_snapshot.anchor_before(
6881 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6882 )
6883 };
6884
6885 let (mut highlighted_rows, distinguish_unstaged_hunks) =
6886 self.editor.update(cx, |editor, cx| {
6887 (
6888 editor.highlighted_display_rows(window, cx),
6889 editor.distinguish_unstaged_diff_hunks,
6890 )
6891 });
6892
6893 for (ix, row_info) in row_infos.iter().enumerate() {
6894 let background = match row_info.diff_status {
6895 Some(DiffHunkStatus::Added(secondary_status)) => {
6896 let color = style.status.created_background;
6897 match secondary_status {
6898 DiffHunkSecondaryStatus::HasSecondaryHunk
6899 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6900 if distinguish_unstaged_hunks =>
6901 {
6902 pattern_slash(color, line_height.0 / 4.0)
6903 }
6904 _ => color.into(),
6905 }
6906 }
6907 Some(DiffHunkStatus::Removed(secondary_status)) => {
6908 let color = style.status.deleted_background;
6909 match secondary_status {
6910 DiffHunkSecondaryStatus::HasSecondaryHunk
6911 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6912 if distinguish_unstaged_hunks =>
6913 {
6914 pattern_slash(color, line_height.0 / 4.0)
6915 }
6916 _ => color.into(),
6917 }
6918 }
6919 _ => continue,
6920 };
6921
6922 highlighted_rows
6923 .entry(start_row + DisplayRow(ix as u32))
6924 .or_insert(background);
6925 }
6926
6927 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6928 start_anchor..end_anchor,
6929 &snapshot.display_snapshot,
6930 cx.theme().colors(),
6931 );
6932 let highlighted_gutter_ranges =
6933 self.editor.read(cx).gutter_highlights_in_range(
6934 start_anchor..end_anchor,
6935 &snapshot.display_snapshot,
6936 cx,
6937 );
6938
6939 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6940 start_anchor..end_anchor,
6941 &snapshot.display_snapshot,
6942 cx,
6943 );
6944
6945 let (local_selections, selected_buffer_ids): (
6946 Vec<Selection<Point>>,
6947 Vec<BufferId>,
6948 ) = self.editor.update(cx, |editor, cx| {
6949 let all_selections = editor.selections.all::<Point>(cx);
6950 let selected_buffer_ids = if editor.is_singleton(cx) {
6951 Vec::new()
6952 } else {
6953 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6954
6955 for selection in all_selections {
6956 for buffer_id in snapshot
6957 .buffer_snapshot
6958 .buffer_ids_for_range(selection.range())
6959 {
6960 if selected_buffer_ids.last() != Some(&buffer_id) {
6961 selected_buffer_ids.push(buffer_id);
6962 }
6963 }
6964 }
6965
6966 selected_buffer_ids
6967 };
6968
6969 let mut selections = editor
6970 .selections
6971 .disjoint_in_range(start_anchor..end_anchor, cx);
6972 selections.extend(editor.selections.pending(cx));
6973
6974 (selections, selected_buffer_ids)
6975 });
6976
6977 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6978 start_anchor,
6979 end_anchor,
6980 &local_selections,
6981 &snapshot,
6982 start_row,
6983 end_row,
6984 window,
6985 cx,
6986 );
6987
6988 let line_numbers = self.layout_line_numbers(
6989 Some(&gutter_hitbox),
6990 gutter_dimensions,
6991 line_height,
6992 scroll_position,
6993 start_row..end_row,
6994 &row_infos,
6995 newest_selection_head,
6996 &snapshot,
6997 window,
6998 cx,
6999 );
7000
7001 let mut crease_toggles =
7002 window.with_element_namespace("crease_toggles", |window| {
7003 self.layout_crease_toggles(
7004 start_row..end_row,
7005 &row_infos,
7006 &active_rows,
7007 &snapshot,
7008 window,
7009 cx,
7010 )
7011 });
7012 let crease_trailers =
7013 window.with_element_namespace("crease_trailers", |window| {
7014 self.layout_crease_trailers(
7015 row_infos.iter().copied(),
7016 &snapshot,
7017 window,
7018 cx,
7019 )
7020 });
7021
7022 let display_hunks = self.layout_gutter_diff_hunks(
7023 line_height,
7024 &gutter_hitbox,
7025 start_row..end_row,
7026 &snapshot,
7027 window,
7028 cx,
7029 );
7030
7031 let mut line_layouts = Self::layout_lines(
7032 start_row..end_row,
7033 &snapshot,
7034 &self.style,
7035 editor_width,
7036 is_row_soft_wrapped,
7037 window,
7038 cx,
7039 );
7040
7041 let longest_line_blame_width = self
7042 .editor
7043 .update(cx, |editor, cx| {
7044 if !editor.show_git_blame_inline {
7045 return None;
7046 }
7047 let blame = editor.blame.as_ref()?;
7048 let blame_entry = blame
7049 .update(cx, |blame, cx| {
7050 let row_infos =
7051 snapshot.row_infos(snapshot.longest_row()).next()?;
7052 blame.blame_for_rows(&[row_infos], cx).next()
7053 })
7054 .flatten()?;
7055 let mut element = render_inline_blame_entry(
7056 self.editor.clone(),
7057 blame,
7058 blame_entry,
7059 &style,
7060 cx,
7061 );
7062 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7063 Some(
7064 element
7065 .layout_as_root(AvailableSpace::min_size(), window, cx)
7066 .width
7067 + inline_blame_padding,
7068 )
7069 })
7070 .unwrap_or(Pixels::ZERO);
7071
7072 let longest_line_width = layout_line(
7073 snapshot.longest_row(),
7074 &snapshot,
7075 &style,
7076 editor_width,
7077 is_row_soft_wrapped,
7078 window,
7079 cx,
7080 )
7081 .width;
7082
7083 let scrollbar_range_data = ScrollbarRangeData::new(
7084 scrollbar_bounds,
7085 letter_size,
7086 &snapshot,
7087 longest_line_width,
7088 longest_line_blame_width,
7089 &style,
7090 editor_width,
7091 cx,
7092 );
7093
7094 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7095 let mut scroll_width = scroll_range_bounds.size.width;
7096
7097 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7098 snapshot.sticky_header_excerpt(start_row)
7099 } else {
7100 None
7101 };
7102 let sticky_header_excerpt_id =
7103 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7104
7105 let blocks = window.with_element_namespace("blocks", |window| {
7106 self.render_blocks(
7107 start_row..end_row,
7108 &snapshot,
7109 &hitbox,
7110 &text_hitbox,
7111 editor_width,
7112 &mut scroll_width,
7113 &gutter_dimensions,
7114 em_width,
7115 gutter_dimensions.full_width(),
7116 line_height,
7117 &line_layouts,
7118 &local_selections,
7119 &selected_buffer_ids,
7120 is_row_soft_wrapped,
7121 sticky_header_excerpt_id,
7122 window,
7123 cx,
7124 )
7125 });
7126 let mut blocks = match blocks {
7127 Ok(blocks) => blocks,
7128 Err(resized_blocks) => {
7129 self.editor.update(cx, |editor, cx| {
7130 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7131 });
7132 return self.prepaint(None, bounds, &mut (), window, cx);
7133 }
7134 };
7135
7136 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7137 window.with_element_namespace("blocks", |window| {
7138 self.layout_sticky_buffer_header(
7139 sticky_header_excerpt,
7140 scroll_position.y,
7141 line_height,
7142 &snapshot,
7143 &hitbox,
7144 &selected_buffer_ids,
7145 window,
7146 cx,
7147 )
7148 })
7149 });
7150
7151 let start_buffer_row =
7152 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7153 let end_buffer_row =
7154 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7155
7156 let scroll_max = point(
7157 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7158 max_row.as_f32(),
7159 );
7160
7161 self.editor.update(cx, |editor, cx| {
7162 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7163
7164 let autoscrolled = if autoscroll_horizontally {
7165 editor.autoscroll_horizontally(
7166 start_row,
7167 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7168 scroll_width,
7169 em_width,
7170 &line_layouts,
7171 cx,
7172 )
7173 } else {
7174 false
7175 };
7176
7177 if clamped || autoscrolled {
7178 snapshot = editor.snapshot(window, cx);
7179 scroll_position = snapshot.scroll_position();
7180 }
7181 });
7182
7183 let scroll_pixel_position = point(
7184 scroll_position.x * em_width,
7185 scroll_position.y * line_height,
7186 );
7187
7188 let indent_guides = self.layout_indent_guides(
7189 content_origin,
7190 text_hitbox.origin,
7191 start_buffer_row..end_buffer_row,
7192 scroll_pixel_position,
7193 line_height,
7194 &snapshot,
7195 window,
7196 cx,
7197 );
7198
7199 let crease_trailers =
7200 window.with_element_namespace("crease_trailers", |window| {
7201 self.prepaint_crease_trailers(
7202 crease_trailers,
7203 &line_layouts,
7204 line_height,
7205 content_origin,
7206 scroll_pixel_position,
7207 em_width,
7208 window,
7209 cx,
7210 )
7211 });
7212
7213 let mut inline_blame = None;
7214 if let Some(newest_selection_head) = newest_selection_head {
7215 let display_row = newest_selection_head.row();
7216 if (start_row..end_row).contains(&display_row) {
7217 let line_ix = display_row.minus(start_row) as usize;
7218 let row_info = &row_infos[line_ix];
7219 let line_layout = &line_layouts[line_ix];
7220 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7221 inline_blame = self.layout_inline_blame(
7222 display_row,
7223 row_info,
7224 line_layout,
7225 crease_trailer_layout,
7226 em_width,
7227 content_origin,
7228 scroll_pixel_position,
7229 line_height,
7230 window,
7231 cx,
7232 );
7233 }
7234 }
7235
7236 let blamed_display_rows = self.layout_blame_entries(
7237 &row_infos,
7238 em_width,
7239 scroll_position,
7240 line_height,
7241 &gutter_hitbox,
7242 gutter_dimensions.git_blame_entries_width,
7243 window,
7244 cx,
7245 );
7246
7247 let scroll_max = point(
7248 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7249 max_scroll_top,
7250 );
7251
7252 self.editor.update(cx, |editor, cx| {
7253 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7254
7255 let autoscrolled = if autoscroll_horizontally {
7256 editor.autoscroll_horizontally(
7257 start_row,
7258 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7259 scroll_width,
7260 em_width,
7261 &line_layouts,
7262 cx,
7263 )
7264 } else {
7265 false
7266 };
7267
7268 if clamped || autoscrolled {
7269 snapshot = editor.snapshot(window, cx);
7270 scroll_position = snapshot.scroll_position();
7271 }
7272 });
7273
7274 let line_elements = self.prepaint_lines(
7275 start_row,
7276 &mut line_layouts,
7277 line_height,
7278 scroll_pixel_position,
7279 content_origin,
7280 window,
7281 cx,
7282 );
7283
7284 let mut block_start_rows = HashSet::default();
7285
7286 window.with_element_namespace("blocks", |window| {
7287 self.layout_blocks(
7288 &mut blocks,
7289 &mut block_start_rows,
7290 &hitbox,
7291 line_height,
7292 scroll_pixel_position,
7293 window,
7294 cx,
7295 );
7296 });
7297
7298 let cursors = self.collect_cursors(&snapshot, cx);
7299 let visible_row_range = start_row..end_row;
7300 let non_visible_cursors = cursors
7301 .iter()
7302 .any(|c| !visible_row_range.contains(&c.0.row()));
7303
7304 let visible_cursors = self.layout_visible_cursors(
7305 &snapshot,
7306 &selections,
7307 &block_start_rows,
7308 start_row..end_row,
7309 &line_layouts,
7310 &text_hitbox,
7311 content_origin,
7312 scroll_position,
7313 scroll_pixel_position,
7314 line_height,
7315 em_width,
7316 em_advance,
7317 autoscroll_containing_element,
7318 window,
7319 cx,
7320 );
7321
7322 let scrollbars_layout = self.layout_scrollbars(
7323 &snapshot,
7324 scrollbar_range_data,
7325 scroll_position,
7326 non_visible_cursors,
7327 window,
7328 cx,
7329 );
7330
7331 let gutter_settings = EditorSettings::get_global(cx).gutter;
7332
7333 let rows_with_hunk_bounds = display_hunks
7334 .iter()
7335 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7336 .fold(
7337 HashMap::default(),
7338 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7339 match hunk {
7340 DisplayDiffHunk::Folded { display_row } => {
7341 rows_with_hunk_bounds.insert(*display_row, bounds);
7342 }
7343 DisplayDiffHunk::Unfolded {
7344 display_row_range, ..
7345 } => {
7346 for display_row in display_row_range.iter_rows() {
7347 rows_with_hunk_bounds.insert(display_row, bounds);
7348 }
7349 }
7350 }
7351 rows_with_hunk_bounds
7352 },
7353 );
7354 let mut code_actions_indicator = None;
7355 if let Some(newest_selection_head) = newest_selection_head {
7356 let newest_selection_point =
7357 newest_selection_head.to_point(&snapshot.display_snapshot);
7358
7359 if (start_row..end_row).contains(&newest_selection_head.row()) {
7360 self.layout_cursor_popovers(
7361 line_height,
7362 &text_hitbox,
7363 content_origin,
7364 start_row,
7365 scroll_pixel_position,
7366 &line_layouts,
7367 newest_selection_head,
7368 newest_selection_point,
7369 &style,
7370 window,
7371 cx,
7372 );
7373
7374 let show_code_actions = snapshot
7375 .show_code_actions
7376 .unwrap_or(gutter_settings.code_actions);
7377 if show_code_actions {
7378 let newest_selection_point =
7379 newest_selection_head.to_point(&snapshot.display_snapshot);
7380 if !snapshot
7381 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7382 {
7383 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7384 MultiBufferRow(newest_selection_point.row),
7385 );
7386 if let Some((buffer, range)) = buffer {
7387 let buffer_id = buffer.remote_id();
7388 let row = range.start.row;
7389 let has_test_indicator = self
7390 .editor
7391 .read(cx)
7392 .tasks
7393 .contains_key(&(buffer_id, row));
7394
7395 if !has_test_indicator {
7396 code_actions_indicator = self
7397 .layout_code_actions_indicator(
7398 line_height,
7399 newest_selection_head,
7400 scroll_pixel_position,
7401 &gutter_dimensions,
7402 &gutter_hitbox,
7403 &rows_with_hunk_bounds,
7404 window,
7405 cx,
7406 );
7407 }
7408 }
7409 }
7410 }
7411 }
7412 }
7413
7414 self.layout_gutter_menu(
7415 line_height,
7416 &text_hitbox,
7417 content_origin,
7418 scroll_pixel_position,
7419 gutter_dimensions.width - gutter_dimensions.left_padding,
7420 window,
7421 cx,
7422 );
7423
7424 let test_indicators = if gutter_settings.runnables {
7425 self.layout_run_indicators(
7426 line_height,
7427 start_row..end_row,
7428 scroll_pixel_position,
7429 &gutter_dimensions,
7430 &gutter_hitbox,
7431 &rows_with_hunk_bounds,
7432 &snapshot,
7433 window,
7434 cx,
7435 )
7436 } else {
7437 Vec::new()
7438 };
7439
7440 self.layout_signature_help(
7441 &hitbox,
7442 content_origin,
7443 scroll_pixel_position,
7444 newest_selection_head,
7445 start_row,
7446 &line_layouts,
7447 line_height,
7448 em_width,
7449 window,
7450 cx,
7451 );
7452
7453 if !cx.has_active_drag() {
7454 self.layout_hover_popovers(
7455 &snapshot,
7456 &hitbox,
7457 &text_hitbox,
7458 start_row..end_row,
7459 content_origin,
7460 scroll_pixel_position,
7461 &line_layouts,
7462 line_height,
7463 em_width,
7464 window,
7465 cx,
7466 );
7467 }
7468
7469 let inline_completion_popover = self.layout_edit_prediction_popover(
7470 &text_hitbox.bounds,
7471 content_origin,
7472 &snapshot,
7473 start_row..end_row,
7474 scroll_position.y,
7475 scroll_position.y + height_in_lines,
7476 &line_layouts,
7477 line_height,
7478 scroll_pixel_position,
7479 newest_selection_head,
7480 editor_width,
7481 &style,
7482 window,
7483 cx,
7484 );
7485
7486 let mouse_context_menu = self.layout_mouse_context_menu(
7487 &snapshot,
7488 start_row..end_row,
7489 content_origin,
7490 window,
7491 cx,
7492 );
7493
7494 window.with_element_namespace("crease_toggles", |window| {
7495 self.prepaint_crease_toggles(
7496 &mut crease_toggles,
7497 line_height,
7498 &gutter_dimensions,
7499 gutter_settings,
7500 scroll_pixel_position,
7501 &gutter_hitbox,
7502 window,
7503 cx,
7504 )
7505 });
7506
7507 let invisible_symbol_font_size = font_size / 2.;
7508 let tab_invisible = window
7509 .text_system()
7510 .shape_line(
7511 "→".into(),
7512 invisible_symbol_font_size,
7513 &[TextRun {
7514 len: "→".len(),
7515 font: self.style.text.font(),
7516 color: cx.theme().colors().editor_invisible,
7517 background_color: None,
7518 underline: None,
7519 strikethrough: None,
7520 }],
7521 )
7522 .unwrap();
7523 let space_invisible = window
7524 .text_system()
7525 .shape_line(
7526 "•".into(),
7527 invisible_symbol_font_size,
7528 &[TextRun {
7529 len: "•".len(),
7530 font: self.style.text.font(),
7531 color: cx.theme().colors().editor_invisible,
7532 background_color: None,
7533 underline: None,
7534 strikethrough: None,
7535 }],
7536 )
7537 .unwrap();
7538
7539 let mode = snapshot.mode;
7540
7541 let position_map = Rc::new(PositionMap {
7542 size: bounds.size,
7543 visible_row_range,
7544 scroll_pixel_position,
7545 scroll_max,
7546 line_layouts,
7547 line_height,
7548 em_width,
7549 em_advance,
7550 snapshot,
7551 gutter_hitbox: gutter_hitbox.clone(),
7552 text_hitbox: text_hitbox.clone(),
7553 });
7554
7555 self.editor.update(cx, |editor, _| {
7556 editor.last_position_map = Some(position_map.clone())
7557 });
7558
7559 let hunk_controls = self.layout_diff_hunk_controls(
7560 start_row..end_row,
7561 &row_infos,
7562 &text_hitbox,
7563 &position_map,
7564 newest_selection_head,
7565 line_height,
7566 scroll_pixel_position,
7567 &display_hunks,
7568 self.editor.clone(),
7569 window,
7570 cx,
7571 );
7572
7573 EditorLayout {
7574 mode,
7575 position_map,
7576 visible_display_row_range: start_row..end_row,
7577 wrap_guides,
7578 indent_guides,
7579 hitbox,
7580 gutter_hitbox,
7581 display_hunks,
7582 content_origin,
7583 scrollbars_layout,
7584 active_rows,
7585 highlighted_rows,
7586 highlighted_ranges,
7587 highlighted_gutter_ranges,
7588 redacted_ranges,
7589 line_elements,
7590 line_numbers,
7591 blamed_display_rows,
7592 inline_blame,
7593 blocks,
7594 cursors,
7595 visible_cursors,
7596 selections,
7597 inline_completion_popover,
7598 diff_hunk_controls: hunk_controls,
7599 mouse_context_menu,
7600 test_indicators,
7601 code_actions_indicator,
7602 crease_toggles,
7603 crease_trailers,
7604 tab_invisible,
7605 space_invisible,
7606 sticky_buffer_header,
7607 }
7608 })
7609 })
7610 })
7611 }
7612
7613 fn paint(
7614 &mut self,
7615 _: Option<&GlobalElementId>,
7616 bounds: Bounds<gpui::Pixels>,
7617 _: &mut Self::RequestLayoutState,
7618 layout: &mut Self::PrepaintState,
7619 window: &mut Window,
7620 cx: &mut App,
7621 ) {
7622 let focus_handle = self.editor.focus_handle(cx);
7623 let key_context = self
7624 .editor
7625 .update(cx, |editor, cx| editor.key_context(window, cx));
7626
7627 window.set_key_context(key_context);
7628 window.handle_input(
7629 &focus_handle,
7630 ElementInputHandler::new(bounds, self.editor.clone()),
7631 cx,
7632 );
7633 self.register_actions(window, cx);
7634 self.register_key_listeners(window, cx, layout);
7635
7636 let text_style = TextStyleRefinement {
7637 font_size: Some(self.style.text.font_size),
7638 line_height: Some(self.style.text.line_height),
7639 ..Default::default()
7640 };
7641 let rem_size = self.rem_size(cx);
7642 window.with_rem_size(rem_size, |window| {
7643 window.with_text_style(Some(text_style), |window| {
7644 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7645 self.paint_mouse_listeners(layout, window, cx);
7646 self.paint_background(layout, window, cx);
7647 self.paint_indent_guides(layout, window, cx);
7648
7649 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7650 self.paint_blamed_display_rows(layout, window, cx);
7651 self.paint_line_numbers(layout, window, cx);
7652 }
7653
7654 self.paint_text(layout, window, cx);
7655
7656 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7657 self.paint_gutter_highlights(layout, window, cx);
7658 self.paint_gutter_indicators(layout, window, cx);
7659 }
7660
7661 if !layout.blocks.is_empty() {
7662 window.with_element_namespace("blocks", |window| {
7663 self.paint_blocks(layout, window, cx);
7664 });
7665 }
7666
7667 window.with_element_namespace("blocks", |window| {
7668 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7669 sticky_header.paint(window, cx)
7670 }
7671 });
7672
7673 self.paint_scrollbars(layout, window, cx);
7674 self.paint_inline_completion_popover(layout, window, cx);
7675 self.paint_mouse_context_menu(layout, window, cx);
7676 });
7677 })
7678 })
7679 }
7680}
7681
7682pub(super) fn gutter_bounds(
7683 editor_bounds: Bounds<Pixels>,
7684 gutter_dimensions: GutterDimensions,
7685) -> Bounds<Pixels> {
7686 Bounds {
7687 origin: editor_bounds.origin,
7688 size: size(gutter_dimensions.width, editor_bounds.size.height),
7689 }
7690}
7691
7692struct ScrollbarRangeData {
7693 scrollbar_bounds: Bounds<Pixels>,
7694 scroll_range: Bounds<Pixels>,
7695 letter_size: Size<Pixels>,
7696}
7697
7698impl ScrollbarRangeData {
7699 #[allow(clippy::too_many_arguments)]
7700 pub fn new(
7701 scrollbar_bounds: Bounds<Pixels>,
7702 letter_size: Size<Pixels>,
7703 snapshot: &EditorSnapshot,
7704 longest_line_width: Pixels,
7705 longest_line_blame_width: Pixels,
7706 style: &EditorStyle,
7707 editor_width: Pixels,
7708 cx: &mut App,
7709 ) -> ScrollbarRangeData {
7710 // TODO: Simplify this function down, it requires a lot of parameters
7711 let max_row = snapshot.max_point().row();
7712 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7713
7714 let settings = EditorSettings::get_global(cx);
7715 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7716 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7717 ScrollBeyondLastLine::Off => px(1.),
7718 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7719 };
7720
7721 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7722 letter_size.width + style.scrollbar_width
7723 } else {
7724 px(0.0)
7725 };
7726
7727 let overscroll = size(
7728 right_margin + longest_line_blame_width,
7729 letter_size.height * scroll_beyond_last_line,
7730 );
7731
7732 let scroll_range = Bounds {
7733 origin: scrollbar_bounds.origin,
7734 size: text_bounds_size + overscroll,
7735 };
7736
7737 ScrollbarRangeData {
7738 scrollbar_bounds,
7739 scroll_range,
7740 letter_size,
7741 }
7742 }
7743}
7744
7745impl IntoElement for EditorElement {
7746 type Element = Self;
7747
7748 fn into_element(self) -> Self::Element {
7749 self
7750 }
7751}
7752
7753pub struct EditorLayout {
7754 position_map: Rc<PositionMap>,
7755 hitbox: Hitbox,
7756 gutter_hitbox: Hitbox,
7757 content_origin: gpui::Point<Pixels>,
7758 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7759 mode: EditorMode,
7760 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7761 indent_guides: Option<Vec<IndentGuideLayout>>,
7762 visible_display_row_range: Range<DisplayRow>,
7763 active_rows: BTreeMap<DisplayRow, bool>,
7764 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7765 line_elements: SmallVec<[AnyElement; 1]>,
7766 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7767 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7768 blamed_display_rows: Option<Vec<AnyElement>>,
7769 inline_blame: Option<AnyElement>,
7770 blocks: Vec<BlockLayout>,
7771 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7772 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7773 redacted_ranges: Vec<Range<DisplayPoint>>,
7774 cursors: Vec<(DisplayPoint, Hsla)>,
7775 visible_cursors: Vec<CursorLayout>,
7776 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7777 code_actions_indicator: Option<AnyElement>,
7778 test_indicators: Vec<AnyElement>,
7779 crease_toggles: Vec<Option<AnyElement>>,
7780 diff_hunk_controls: Vec<AnyElement>,
7781 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7782 inline_completion_popover: Option<AnyElement>,
7783 mouse_context_menu: Option<AnyElement>,
7784 tab_invisible: ShapedLine,
7785 space_invisible: ShapedLine,
7786 sticky_buffer_header: Option<AnyElement>,
7787}
7788
7789impl EditorLayout {
7790 fn line_end_overshoot(&self) -> Pixels {
7791 0.15 * self.position_map.line_height
7792 }
7793}
7794
7795struct LineNumberLayout {
7796 shaped_line: ShapedLine,
7797 hitbox: Option<Hitbox>,
7798 display_row: DisplayRow,
7799}
7800
7801struct ColoredRange<T> {
7802 start: T,
7803 end: T,
7804 color: Hsla,
7805}
7806
7807#[derive(Clone)]
7808struct ScrollbarLayout {
7809 hitbox: Hitbox,
7810 visible_range: Range<f32>,
7811 visible: bool,
7812 text_unit_size: Pixels,
7813 thumb_size: Pixels,
7814 axis: Axis,
7815}
7816
7817impl ScrollbarLayout {
7818 const BORDER_WIDTH: Pixels = px(1.0);
7819 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7820 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7821 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7822
7823 fn thumb_bounds(&self) -> Bounds<Pixels> {
7824 match self.axis {
7825 Axis::Vertical => {
7826 let thumb_top = self.y_for_row(self.visible_range.start);
7827 let thumb_bottom = thumb_top + self.thumb_size;
7828 Bounds::from_corners(
7829 point(self.hitbox.left(), thumb_top),
7830 point(self.hitbox.right(), thumb_bottom),
7831 )
7832 }
7833 Axis::Horizontal => {
7834 let thumb_left =
7835 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7836 let thumb_right = thumb_left + self.thumb_size;
7837 Bounds::from_corners(
7838 point(thumb_left, self.hitbox.top()),
7839 point(thumb_right, self.hitbox.bottom()),
7840 )
7841 }
7842 }
7843 }
7844
7845 fn y_for_row(&self, row: f32) -> Pixels {
7846 self.hitbox.top() + row * self.text_unit_size
7847 }
7848
7849 fn marker_quads_for_ranges(
7850 &self,
7851 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7852 column: Option<usize>,
7853 ) -> Vec<PaintQuad> {
7854 struct MinMax {
7855 min: Pixels,
7856 max: Pixels,
7857 }
7858 let (x_range, height_limit) = if let Some(column) = column {
7859 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7860 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7861 let end = start + column_width;
7862 (
7863 Range { start, end },
7864 MinMax {
7865 min: Self::MIN_MARKER_HEIGHT,
7866 max: px(f32::MAX),
7867 },
7868 )
7869 } else {
7870 (
7871 Range {
7872 start: Self::BORDER_WIDTH,
7873 end: self.hitbox.size.width,
7874 },
7875 MinMax {
7876 min: Self::LINE_MARKER_HEIGHT,
7877 max: Self::LINE_MARKER_HEIGHT,
7878 },
7879 )
7880 };
7881
7882 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7883 let mut pixel_ranges = row_ranges
7884 .into_iter()
7885 .map(|range| {
7886 let start_y = row_to_y(range.start);
7887 let end_y = row_to_y(range.end)
7888 + self
7889 .text_unit_size
7890 .max(height_limit.min)
7891 .min(height_limit.max);
7892 ColoredRange {
7893 start: start_y,
7894 end: end_y,
7895 color: range.color,
7896 }
7897 })
7898 .peekable();
7899
7900 let mut quads = Vec::new();
7901 while let Some(mut pixel_range) = pixel_ranges.next() {
7902 while let Some(next_pixel_range) = pixel_ranges.peek() {
7903 if pixel_range.end >= next_pixel_range.start - px(1.0)
7904 && pixel_range.color == next_pixel_range.color
7905 {
7906 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7907 pixel_ranges.next();
7908 } else {
7909 break;
7910 }
7911 }
7912
7913 let bounds = Bounds::from_corners(
7914 point(x_range.start, pixel_range.start),
7915 point(x_range.end, pixel_range.end),
7916 );
7917 quads.push(quad(
7918 bounds,
7919 Corners::default(),
7920 pixel_range.color,
7921 Edges::default(),
7922 Hsla::transparent_black(),
7923 ));
7924 }
7925
7926 quads
7927 }
7928}
7929
7930struct CreaseTrailerLayout {
7931 element: AnyElement,
7932 bounds: Bounds<Pixels>,
7933}
7934
7935pub(crate) struct PositionMap {
7936 pub size: Size<Pixels>,
7937 pub line_height: Pixels,
7938 pub scroll_pixel_position: gpui::Point<Pixels>,
7939 pub scroll_max: gpui::Point<f32>,
7940 pub em_width: Pixels,
7941 pub em_advance: Pixels,
7942 pub visible_row_range: Range<DisplayRow>,
7943 pub line_layouts: Vec<LineWithInvisibles>,
7944 pub snapshot: EditorSnapshot,
7945 pub text_hitbox: Hitbox,
7946 pub gutter_hitbox: Hitbox,
7947}
7948
7949#[derive(Debug, Copy, Clone)]
7950pub struct PointForPosition {
7951 pub previous_valid: DisplayPoint,
7952 pub next_valid: DisplayPoint,
7953 pub exact_unclipped: DisplayPoint,
7954 pub column_overshoot_after_line_end: u32,
7955}
7956
7957impl PointForPosition {
7958 pub fn as_valid(&self) -> Option<DisplayPoint> {
7959 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7960 Some(self.previous_valid)
7961 } else {
7962 None
7963 }
7964 }
7965}
7966
7967impl PositionMap {
7968 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7969 let text_bounds = self.text_hitbox.bounds;
7970 let scroll_position = self.snapshot.scroll_position();
7971 let position = position - text_bounds.origin;
7972 let y = position.y.max(px(0.)).min(self.size.height);
7973 let x = position.x + (scroll_position.x * self.em_width);
7974 let row = ((y / self.line_height) + scroll_position.y) as u32;
7975
7976 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7977 .line_layouts
7978 .get(row as usize - scroll_position.y as usize)
7979 {
7980 if let Some(ix) = line.index_for_x(x) {
7981 (ix as u32, px(0.))
7982 } else {
7983 (line.len as u32, px(0.).max(x - line.width))
7984 }
7985 } else {
7986 (0, x)
7987 };
7988
7989 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7990 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7991 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7992
7993 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7994 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7995 PointForPosition {
7996 previous_valid,
7997 next_valid,
7998 exact_unclipped,
7999 column_overshoot_after_line_end,
8000 }
8001 }
8002}
8003
8004struct BlockLayout {
8005 id: BlockId,
8006 row: Option<DisplayRow>,
8007 element: AnyElement,
8008 available_space: Size<AvailableSpace>,
8009 style: BlockStyle,
8010}
8011
8012fn layout_line(
8013 row: DisplayRow,
8014 snapshot: &EditorSnapshot,
8015 style: &EditorStyle,
8016 text_width: Pixels,
8017 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8018 window: &mut Window,
8019 cx: &mut App,
8020) -> LineWithInvisibles {
8021 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8022 LineWithInvisibles::from_chunks(
8023 chunks,
8024 &style,
8025 MAX_LINE_LEN,
8026 1,
8027 snapshot.mode,
8028 text_width,
8029 is_row_soft_wrapped,
8030 window,
8031 cx,
8032 )
8033 .pop()
8034 .unwrap()
8035}
8036
8037#[derive(Debug)]
8038pub struct IndentGuideLayout {
8039 origin: gpui::Point<Pixels>,
8040 length: Pixels,
8041 single_indent_width: Pixels,
8042 depth: u32,
8043 active: bool,
8044 settings: IndentGuideSettings,
8045}
8046
8047pub struct CursorLayout {
8048 origin: gpui::Point<Pixels>,
8049 block_width: Pixels,
8050 line_height: Pixels,
8051 color: Hsla,
8052 shape: CursorShape,
8053 block_text: Option<ShapedLine>,
8054 cursor_name: Option<AnyElement>,
8055}
8056
8057#[derive(Debug)]
8058pub struct CursorName {
8059 string: SharedString,
8060 color: Hsla,
8061 is_top_row: bool,
8062}
8063
8064impl CursorLayout {
8065 pub fn new(
8066 origin: gpui::Point<Pixels>,
8067 block_width: Pixels,
8068 line_height: Pixels,
8069 color: Hsla,
8070 shape: CursorShape,
8071 block_text: Option<ShapedLine>,
8072 ) -> CursorLayout {
8073 CursorLayout {
8074 origin,
8075 block_width,
8076 line_height,
8077 color,
8078 shape,
8079 block_text,
8080 cursor_name: None,
8081 }
8082 }
8083
8084 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8085 Bounds {
8086 origin: self.origin + origin,
8087 size: size(self.block_width, self.line_height),
8088 }
8089 }
8090
8091 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8092 match self.shape {
8093 CursorShape::Bar => Bounds {
8094 origin: self.origin + origin,
8095 size: size(px(2.0), self.line_height),
8096 },
8097 CursorShape::Block | CursorShape::Hollow => Bounds {
8098 origin: self.origin + origin,
8099 size: size(self.block_width, self.line_height),
8100 },
8101 CursorShape::Underline => Bounds {
8102 origin: self.origin
8103 + origin
8104 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8105 size: size(self.block_width, px(2.0)),
8106 },
8107 }
8108 }
8109
8110 pub fn layout(
8111 &mut self,
8112 origin: gpui::Point<Pixels>,
8113 cursor_name: Option<CursorName>,
8114 window: &mut Window,
8115 cx: &mut App,
8116 ) {
8117 if let Some(cursor_name) = cursor_name {
8118 let bounds = self.bounds(origin);
8119 let text_size = self.line_height / 1.5;
8120
8121 let name_origin = if cursor_name.is_top_row {
8122 point(bounds.right() - px(1.), bounds.top())
8123 } else {
8124 match self.shape {
8125 CursorShape::Bar => point(
8126 bounds.right() - px(2.),
8127 bounds.top() - text_size / 2. - px(1.),
8128 ),
8129 _ => point(
8130 bounds.right() - px(1.),
8131 bounds.top() - text_size / 2. - px(1.),
8132 ),
8133 }
8134 };
8135 let mut name_element = div()
8136 .bg(self.color)
8137 .text_size(text_size)
8138 .px_0p5()
8139 .line_height(text_size + px(2.))
8140 .text_color(cursor_name.color)
8141 .child(cursor_name.string.clone())
8142 .into_any_element();
8143
8144 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8145
8146 self.cursor_name = Some(name_element);
8147 }
8148 }
8149
8150 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8151 let bounds = self.bounds(origin);
8152
8153 //Draw background or border quad
8154 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8155 outline(bounds, self.color)
8156 } else {
8157 fill(bounds, self.color)
8158 };
8159
8160 if let Some(name) = &mut self.cursor_name {
8161 name.paint(window, cx);
8162 }
8163
8164 window.paint_quad(cursor);
8165
8166 if let Some(block_text) = &self.block_text {
8167 block_text
8168 .paint(self.origin + origin, self.line_height, window, cx)
8169 .log_err();
8170 }
8171 }
8172
8173 pub fn shape(&self) -> CursorShape {
8174 self.shape
8175 }
8176}
8177
8178#[derive(Debug)]
8179pub struct HighlightedRange {
8180 pub start_y: Pixels,
8181 pub line_height: Pixels,
8182 pub lines: Vec<HighlightedRangeLine>,
8183 pub color: Hsla,
8184 pub corner_radius: Pixels,
8185}
8186
8187#[derive(Debug)]
8188pub struct HighlightedRangeLine {
8189 pub start_x: Pixels,
8190 pub end_x: Pixels,
8191}
8192
8193impl HighlightedRange {
8194 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8195 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8196 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8197 self.paint_lines(
8198 self.start_y + self.line_height,
8199 &self.lines[1..],
8200 bounds,
8201 window,
8202 );
8203 } else {
8204 self.paint_lines(self.start_y, &self.lines, bounds, window);
8205 }
8206 }
8207
8208 fn paint_lines(
8209 &self,
8210 start_y: Pixels,
8211 lines: &[HighlightedRangeLine],
8212 _bounds: Bounds<Pixels>,
8213 window: &mut Window,
8214 ) {
8215 if lines.is_empty() {
8216 return;
8217 }
8218
8219 let first_line = lines.first().unwrap();
8220 let last_line = lines.last().unwrap();
8221
8222 let first_top_left = point(first_line.start_x, start_y);
8223 let first_top_right = point(first_line.end_x, start_y);
8224
8225 let curve_height = point(Pixels::ZERO, self.corner_radius);
8226 let curve_width = |start_x: Pixels, end_x: Pixels| {
8227 let max = (end_x - start_x) / 2.;
8228 let width = if max < self.corner_radius {
8229 max
8230 } else {
8231 self.corner_radius
8232 };
8233
8234 point(width, Pixels::ZERO)
8235 };
8236
8237 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8238 let mut builder = gpui::PathBuilder::fill();
8239 builder.move_to(first_top_right - top_curve_width);
8240 builder.curve_to(first_top_right + curve_height, first_top_right);
8241
8242 let mut iter = lines.iter().enumerate().peekable();
8243 while let Some((ix, line)) = iter.next() {
8244 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8245
8246 if let Some((_, next_line)) = iter.peek() {
8247 let next_top_right = point(next_line.end_x, bottom_right.y);
8248
8249 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8250 Ordering::Equal => {
8251 builder.line_to(bottom_right);
8252 }
8253 Ordering::Less => {
8254 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8255 builder.line_to(bottom_right - curve_height);
8256 if self.corner_radius > Pixels::ZERO {
8257 builder.curve_to(bottom_right - curve_width, bottom_right);
8258 }
8259 builder.line_to(next_top_right + curve_width);
8260 if self.corner_radius > Pixels::ZERO {
8261 builder.curve_to(next_top_right + curve_height, next_top_right);
8262 }
8263 }
8264 Ordering::Greater => {
8265 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8266 builder.line_to(bottom_right - curve_height);
8267 if self.corner_radius > Pixels::ZERO {
8268 builder.curve_to(bottom_right + curve_width, bottom_right);
8269 }
8270 builder.line_to(next_top_right - curve_width);
8271 if self.corner_radius > Pixels::ZERO {
8272 builder.curve_to(next_top_right + curve_height, next_top_right);
8273 }
8274 }
8275 }
8276 } else {
8277 let curve_width = curve_width(line.start_x, line.end_x);
8278 builder.line_to(bottom_right - curve_height);
8279 if self.corner_radius > Pixels::ZERO {
8280 builder.curve_to(bottom_right - curve_width, bottom_right);
8281 }
8282
8283 let bottom_left = point(line.start_x, bottom_right.y);
8284 builder.line_to(bottom_left + curve_width);
8285 if self.corner_radius > Pixels::ZERO {
8286 builder.curve_to(bottom_left - curve_height, bottom_left);
8287 }
8288 }
8289 }
8290
8291 if first_line.start_x > last_line.start_x {
8292 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8293 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8294 builder.line_to(second_top_left + curve_height);
8295 if self.corner_radius > Pixels::ZERO {
8296 builder.curve_to(second_top_left + curve_width, second_top_left);
8297 }
8298 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8299 builder.line_to(first_bottom_left - curve_width);
8300 if self.corner_radius > Pixels::ZERO {
8301 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8302 }
8303 }
8304
8305 builder.line_to(first_top_left + curve_height);
8306 if self.corner_radius > Pixels::ZERO {
8307 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8308 }
8309 builder.line_to(first_top_right - top_curve_width);
8310
8311 if let Ok(path) = builder.build() {
8312 window.paint_path(path, self.color);
8313 }
8314 }
8315}
8316
8317enum CursorPopoverType {
8318 CodeContextMenu,
8319 EditPrediction,
8320}
8321
8322pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8323 (delta.pow(1.5) / 100.0).into()
8324}
8325
8326fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8327 (delta.pow(1.2) / 300.0).into()
8328}
8329
8330pub fn register_action<T: Action>(
8331 editor: &Entity<Editor>,
8332 window: &mut Window,
8333 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8334) {
8335 let editor = editor.clone();
8336 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8337 let action = action.downcast_ref().unwrap();
8338 if phase == DispatchPhase::Bubble {
8339 editor.update(cx, |editor, cx| {
8340 listener(editor, action, window, cx);
8341 })
8342 }
8343 })
8344}
8345
8346fn compute_auto_height_layout(
8347 editor: &mut Editor,
8348 max_lines: usize,
8349 max_line_number_width: Pixels,
8350 known_dimensions: Size<Option<Pixels>>,
8351 available_width: AvailableSpace,
8352 window: &mut Window,
8353 cx: &mut Context<Editor>,
8354) -> Option<Size<Pixels>> {
8355 let width = known_dimensions.width.or({
8356 if let AvailableSpace::Definite(available_width) = available_width {
8357 Some(available_width)
8358 } else {
8359 None
8360 }
8361 })?;
8362 if let Some(height) = known_dimensions.height {
8363 return Some(size(width, height));
8364 }
8365
8366 let style = editor.style.as_ref().unwrap();
8367 let font_id = window.text_system().resolve_font(&style.text.font());
8368 let font_size = style.text.font_size.to_pixels(window.rem_size());
8369 let line_height = style.text.line_height_in_pixels(window.rem_size());
8370 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8371
8372 let mut snapshot = editor.snapshot(window, cx);
8373 let gutter_dimensions = snapshot
8374 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8375 .unwrap_or_default();
8376
8377 editor.gutter_dimensions = gutter_dimensions;
8378 let text_width = width - gutter_dimensions.width;
8379 let overscroll = size(em_width, px(0.));
8380
8381 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8382 if editor.set_wrap_width(Some(editor_width), cx) {
8383 snapshot = editor.snapshot(window, cx);
8384 }
8385
8386 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8387 let height = scroll_height
8388 .max(line_height)
8389 .min(line_height * max_lines as f32);
8390
8391 Some(size(width, height))
8392}
8393
8394#[cfg(test)]
8395mod tests {
8396 use super::*;
8397 use crate::{
8398 display_map::{BlockPlacement, BlockProperties},
8399 editor_tests::{init_test, update_test_language_settings},
8400 Editor, MultiBuffer,
8401 };
8402 use gpui::{TestAppContext, VisualTestContext};
8403 use language::language_settings;
8404 use log::info;
8405 use similar::DiffableStr;
8406 use std::num::NonZeroU32;
8407 use util::test::sample_text;
8408
8409 #[gpui::test]
8410 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8411 init_test(cx, |_| {});
8412 let window = cx.add_window(|window, cx| {
8413 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8414 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8415 });
8416
8417 let editor = window.root(cx).unwrap();
8418 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8419 let line_height = window
8420 .update(cx, |_, window, _| {
8421 style.text.line_height_in_pixels(window.rem_size())
8422 })
8423 .unwrap();
8424 let element = EditorElement::new(&editor, style);
8425 let snapshot = window
8426 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8427 .unwrap();
8428
8429 let layouts = cx
8430 .update_window(*window, |_, window, cx| {
8431 element.layout_line_numbers(
8432 None,
8433 GutterDimensions {
8434 left_padding: Pixels::ZERO,
8435 right_padding: Pixels::ZERO,
8436 width: px(30.0),
8437 margin: Pixels::ZERO,
8438 git_blame_entries_width: None,
8439 },
8440 line_height,
8441 gpui::Point::default(),
8442 DisplayRow(0)..DisplayRow(6),
8443 &(0..6)
8444 .map(|row| RowInfo {
8445 buffer_row: Some(row),
8446 ..Default::default()
8447 })
8448 .collect::<Vec<_>>(),
8449 Some(DisplayPoint::new(DisplayRow(0), 0)),
8450 &snapshot,
8451 window,
8452 cx,
8453 )
8454 })
8455 .unwrap();
8456 assert_eq!(layouts.len(), 6);
8457
8458 let relative_rows = window
8459 .update(cx, |editor, window, cx| {
8460 let snapshot = editor.snapshot(window, cx);
8461 element.calculate_relative_line_numbers(
8462 &snapshot,
8463 &(DisplayRow(0)..DisplayRow(6)),
8464 Some(DisplayRow(3)),
8465 )
8466 })
8467 .unwrap();
8468 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8469 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8470 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8471 // current line has no relative number
8472 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8473 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8474
8475 // works if cursor is before screen
8476 let relative_rows = window
8477 .update(cx, |editor, window, cx| {
8478 let snapshot = editor.snapshot(window, cx);
8479 element.calculate_relative_line_numbers(
8480 &snapshot,
8481 &(DisplayRow(3)..DisplayRow(6)),
8482 Some(DisplayRow(1)),
8483 )
8484 })
8485 .unwrap();
8486 assert_eq!(relative_rows.len(), 3);
8487 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8488 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8489 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8490
8491 // works if cursor is after screen
8492 let relative_rows = window
8493 .update(cx, |editor, window, cx| {
8494 let snapshot = editor.snapshot(window, cx);
8495 element.calculate_relative_line_numbers(
8496 &snapshot,
8497 &(DisplayRow(0)..DisplayRow(3)),
8498 Some(DisplayRow(6)),
8499 )
8500 })
8501 .unwrap();
8502 assert_eq!(relative_rows.len(), 3);
8503 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8504 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8505 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8506 }
8507
8508 #[gpui::test]
8509 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8510 init_test(cx, |_| {});
8511
8512 let window = cx.add_window(|window, cx| {
8513 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8514 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8515 });
8516 let cx = &mut VisualTestContext::from_window(*window, cx);
8517 let editor = window.root(cx).unwrap();
8518 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8519
8520 window
8521 .update(cx, |editor, window, cx| {
8522 editor.cursor_shape = CursorShape::Block;
8523 editor.change_selections(None, window, cx, |s| {
8524 s.select_ranges([
8525 Point::new(0, 0)..Point::new(1, 0),
8526 Point::new(3, 2)..Point::new(3, 3),
8527 Point::new(5, 6)..Point::new(6, 0),
8528 ]);
8529 });
8530 })
8531 .unwrap();
8532
8533 let (_, state) = cx.draw(
8534 point(px(500.), px(500.)),
8535 size(px(500.), px(500.)),
8536 |_, _| EditorElement::new(&editor, style),
8537 );
8538
8539 assert_eq!(state.selections.len(), 1);
8540 let local_selections = &state.selections[0].1;
8541 assert_eq!(local_selections.len(), 3);
8542 // moves cursor back one line
8543 assert_eq!(
8544 local_selections[0].head,
8545 DisplayPoint::new(DisplayRow(0), 6)
8546 );
8547 assert_eq!(
8548 local_selections[0].range,
8549 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8550 );
8551
8552 // moves cursor back one column
8553 assert_eq!(
8554 local_selections[1].range,
8555 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8556 );
8557 assert_eq!(
8558 local_selections[1].head,
8559 DisplayPoint::new(DisplayRow(3), 2)
8560 );
8561
8562 // leaves cursor on the max point
8563 assert_eq!(
8564 local_selections[2].range,
8565 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8566 );
8567 assert_eq!(
8568 local_selections[2].head,
8569 DisplayPoint::new(DisplayRow(6), 0)
8570 );
8571
8572 // active lines does not include 1 (even though the range of the selection does)
8573 assert_eq!(
8574 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8575 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8576 );
8577
8578 // multi-buffer support
8579 // in DisplayPoint coordinates, this is what we're dealing with:
8580 // 0: [[file
8581 // 1: header
8582 // 2: section]]
8583 // 3: aaaaaa
8584 // 4: bbbbbb
8585 // 5: cccccc
8586 // 6:
8587 // 7: [[footer]]
8588 // 8: [[header]]
8589 // 9: ffffff
8590 // 10: gggggg
8591 // 11: hhhhhh
8592 // 12:
8593 // 13: [[footer]]
8594 // 14: [[file
8595 // 15: header
8596 // 16: section]]
8597 // 17: bbbbbb
8598 // 18: cccccc
8599 // 19: dddddd
8600 // 20: [[footer]]
8601 let window = cx.add_window(|window, cx| {
8602 let buffer = MultiBuffer::build_multi(
8603 [
8604 (
8605 &(sample_text(8, 6, 'a') + "\n"),
8606 vec![
8607 Point::new(0, 0)..Point::new(3, 0),
8608 Point::new(4, 0)..Point::new(7, 0),
8609 ],
8610 ),
8611 (
8612 &(sample_text(8, 6, 'a') + "\n"),
8613 vec![Point::new(1, 0)..Point::new(3, 0)],
8614 ),
8615 ],
8616 cx,
8617 );
8618 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8619 });
8620 let editor = window.root(cx).unwrap();
8621 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8622 let _state = window.update(cx, |editor, window, cx| {
8623 editor.cursor_shape = CursorShape::Block;
8624 editor.change_selections(None, window, cx, |s| {
8625 s.select_display_ranges([
8626 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8627 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8628 ]);
8629 });
8630 });
8631
8632 let (_, state) = cx.draw(
8633 point(px(500.), px(500.)),
8634 size(px(500.), px(500.)),
8635 |_, _| EditorElement::new(&editor, style),
8636 );
8637 assert_eq!(state.selections.len(), 1);
8638 let local_selections = &state.selections[0].1;
8639 assert_eq!(local_selections.len(), 2);
8640
8641 // moves cursor on excerpt boundary back a line
8642 // and doesn't allow selection to bleed through
8643 assert_eq!(
8644 local_selections[0].range,
8645 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8646 );
8647 assert_eq!(
8648 local_selections[0].head,
8649 DisplayPoint::new(DisplayRow(6), 0)
8650 );
8651 // moves cursor on buffer boundary back two lines
8652 // and doesn't allow selection to bleed through
8653 assert_eq!(
8654 local_selections[1].range,
8655 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8656 );
8657 assert_eq!(
8658 local_selections[1].head,
8659 DisplayPoint::new(DisplayRow(12), 0)
8660 );
8661 }
8662
8663 #[gpui::test]
8664 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8665 init_test(cx, |_| {});
8666
8667 let window = cx.add_window(|window, cx| {
8668 let buffer = MultiBuffer::build_simple("", cx);
8669 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8670 });
8671 let cx = &mut VisualTestContext::from_window(*window, cx);
8672 let editor = window.root(cx).unwrap();
8673 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8674 window
8675 .update(cx, |editor, window, cx| {
8676 editor.set_placeholder_text("hello", cx);
8677 editor.insert_blocks(
8678 [BlockProperties {
8679 style: BlockStyle::Fixed,
8680 placement: BlockPlacement::Above(Anchor::min()),
8681 height: 3,
8682 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8683 priority: 0,
8684 }],
8685 None,
8686 cx,
8687 );
8688
8689 // Blur the editor so that it displays placeholder text.
8690 window.blur();
8691 })
8692 .unwrap();
8693
8694 let (_, state) = cx.draw(
8695 point(px(500.), px(500.)),
8696 size(px(500.), px(500.)),
8697 |_, _| EditorElement::new(&editor, style),
8698 );
8699 assert_eq!(state.position_map.line_layouts.len(), 4);
8700 assert_eq!(state.line_numbers.len(), 1);
8701 assert_eq!(
8702 state
8703 .line_numbers
8704 .get(&MultiBufferRow(0))
8705 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8706 Some("1")
8707 );
8708 }
8709
8710 #[gpui::test]
8711 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8712 const TAB_SIZE: u32 = 4;
8713
8714 let input_text = "\t \t|\t| a b";
8715 let expected_invisibles = vec![
8716 Invisible::Tab {
8717 line_start_offset: 0,
8718 line_end_offset: TAB_SIZE as usize,
8719 },
8720 Invisible::Whitespace {
8721 line_offset: TAB_SIZE as usize,
8722 },
8723 Invisible::Tab {
8724 line_start_offset: TAB_SIZE as usize + 1,
8725 line_end_offset: TAB_SIZE as usize * 2,
8726 },
8727 Invisible::Tab {
8728 line_start_offset: TAB_SIZE as usize * 2 + 1,
8729 line_end_offset: TAB_SIZE as usize * 3,
8730 },
8731 Invisible::Whitespace {
8732 line_offset: TAB_SIZE as usize * 3 + 1,
8733 },
8734 Invisible::Whitespace {
8735 line_offset: TAB_SIZE as usize * 3 + 3,
8736 },
8737 ];
8738 assert_eq!(
8739 expected_invisibles.len(),
8740 input_text
8741 .chars()
8742 .filter(|initial_char| initial_char.is_whitespace())
8743 .count(),
8744 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8745 );
8746
8747 for show_line_numbers in [true, false] {
8748 init_test(cx, |s| {
8749 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8750 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8751 });
8752
8753 let actual_invisibles = collect_invisibles_from_new_editor(
8754 cx,
8755 EditorMode::Full,
8756 input_text,
8757 px(500.0),
8758 show_line_numbers,
8759 );
8760
8761 assert_eq!(expected_invisibles, actual_invisibles);
8762 }
8763 }
8764
8765 #[gpui::test]
8766 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8767 init_test(cx, |s| {
8768 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8769 s.defaults.tab_size = NonZeroU32::new(4);
8770 });
8771
8772 for editor_mode_without_invisibles in [
8773 EditorMode::SingleLine { auto_width: false },
8774 EditorMode::AutoHeight { max_lines: 100 },
8775 ] {
8776 for show_line_numbers in [true, false] {
8777 let invisibles = collect_invisibles_from_new_editor(
8778 cx,
8779 editor_mode_without_invisibles,
8780 "\t\t\t| | a b",
8781 px(500.0),
8782 show_line_numbers,
8783 );
8784 assert!(invisibles.is_empty(),
8785 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8786 }
8787 }
8788 }
8789
8790 #[gpui::test]
8791 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8792 let tab_size = 4;
8793 let input_text = "a\tbcd ".repeat(9);
8794 let repeated_invisibles = [
8795 Invisible::Tab {
8796 line_start_offset: 1,
8797 line_end_offset: tab_size as usize,
8798 },
8799 Invisible::Whitespace {
8800 line_offset: tab_size as usize + 3,
8801 },
8802 Invisible::Whitespace {
8803 line_offset: tab_size as usize + 4,
8804 },
8805 Invisible::Whitespace {
8806 line_offset: tab_size as usize + 5,
8807 },
8808 Invisible::Whitespace {
8809 line_offset: tab_size as usize + 6,
8810 },
8811 Invisible::Whitespace {
8812 line_offset: tab_size as usize + 7,
8813 },
8814 ];
8815 let expected_invisibles = std::iter::once(repeated_invisibles)
8816 .cycle()
8817 .take(9)
8818 .flatten()
8819 .collect::<Vec<_>>();
8820 assert_eq!(
8821 expected_invisibles.len(),
8822 input_text
8823 .chars()
8824 .filter(|initial_char| initial_char.is_whitespace())
8825 .count(),
8826 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8827 );
8828 info!("Expected invisibles: {expected_invisibles:?}");
8829
8830 init_test(cx, |_| {});
8831
8832 // Put the same string with repeating whitespace pattern into editors of various size,
8833 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8834 let resize_step = 10.0;
8835 let mut editor_width = 200.0;
8836 while editor_width <= 1000.0 {
8837 for show_line_numbers in [true, false] {
8838 update_test_language_settings(cx, |s| {
8839 s.defaults.tab_size = NonZeroU32::new(tab_size);
8840 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8841 s.defaults.preferred_line_length = Some(editor_width as u32);
8842 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8843 });
8844
8845 let actual_invisibles = collect_invisibles_from_new_editor(
8846 cx,
8847 EditorMode::Full,
8848 &input_text,
8849 px(editor_width),
8850 show_line_numbers,
8851 );
8852
8853 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8854 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8855 let mut i = 0;
8856 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8857 i = actual_index;
8858 match expected_invisibles.get(i) {
8859 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8860 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8861 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8862 _ => {
8863 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8864 }
8865 },
8866 None => {
8867 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8868 }
8869 }
8870 }
8871 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8872 assert!(
8873 missing_expected_invisibles.is_empty(),
8874 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8875 );
8876
8877 editor_width += resize_step;
8878 }
8879 }
8880 }
8881
8882 fn collect_invisibles_from_new_editor(
8883 cx: &mut TestAppContext,
8884 editor_mode: EditorMode,
8885 input_text: &str,
8886 editor_width: Pixels,
8887 show_line_numbers: bool,
8888 ) -> Vec<Invisible> {
8889 info!(
8890 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8891 editor_width.0
8892 );
8893 let window = cx.add_window(|window, cx| {
8894 let buffer = MultiBuffer::build_simple(input_text, cx);
8895 Editor::new(editor_mode, buffer, None, true, window, cx)
8896 });
8897 let cx = &mut VisualTestContext::from_window(*window, cx);
8898 let editor = window.root(cx).unwrap();
8899
8900 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8901 window
8902 .update(cx, |editor, _, cx| {
8903 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8904 editor.set_wrap_width(Some(editor_width), cx);
8905 editor.set_show_line_numbers(show_line_numbers, cx);
8906 })
8907 .unwrap();
8908 let (_, state) = cx.draw(
8909 point(px(500.), px(500.)),
8910 size(px(500.), px(500.)),
8911 |_, _| EditorElement::new(&editor, style),
8912 );
8913 state
8914 .position_map
8915 .line_layouts
8916 .iter()
8917 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8918 .cloned()
8919 .collect()
8920 }
8921}
8922
8923fn diff_hunk_controls(
8924 row: u32,
8925 hunk_range: Range<Anchor>,
8926 line_height: Pixels,
8927 editor: &Entity<Editor>,
8928 _window: &mut Window,
8929 cx: &mut App,
8930) -> AnyElement {
8931 let stage = editor.update(cx, |editor, cx| {
8932 let snapshot = editor.buffer.read(cx).snapshot(cx);
8933 editor.has_stageable_diff_hunks_in_ranges(&[hunk_range.start..hunk_range.start], &snapshot)
8934 });
8935 h_flex()
8936 .h(line_height)
8937 .mr_1()
8938 .gap_1()
8939 .px_1()
8940 .pb_1()
8941 .border_b_1()
8942 .border_color(cx.theme().colors().border_variant)
8943 .rounded_b_lg()
8944 .bg(cx.theme().colors().editor_background)
8945 .gap_1()
8946 .child(
8947 IconButton::new(("discard-hunk", row as u64), IconName::Undo)
8948 .shape(IconButtonShape::Square)
8949 .icon_size(IconSize::Small)
8950 .tooltip({
8951 let focus_handle = editor.focus_handle(cx);
8952 move |window, cx| {
8953 Tooltip::for_action_in(
8954 "Discard Hunk",
8955 &RevertSelectedHunks,
8956 &focus_handle,
8957 window,
8958 cx,
8959 )
8960 }
8961 })
8962 .on_click({
8963 let editor = editor.clone();
8964 move |_event, window, cx| {
8965 editor.update(cx, |editor, cx| {
8966 let snapshot = editor.snapshot(window, cx);
8967 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8968 editor.discard_hunks_in_ranges([point..point].into_iter(), window, cx);
8969 });
8970 }
8971 }),
8972 )
8973 .child(
8974 Button::new(("skip-hunk", row as u64), "Skip")
8975 .label_size(LabelSize::Small)
8976 .tooltip({
8977 let focus_handle = editor.focus_handle(cx);
8978 move |window, cx| {
8979 Tooltip::for_action_in("Skip Hunk", &GoToHunk, &focus_handle, window, cx)
8980 }
8981 })
8982 .on_click({
8983 let editor = editor.clone();
8984 move |_event, window, cx| {
8985 editor.update(cx, |editor, cx| {
8986 let snapshot = editor.snapshot(window, cx);
8987 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8988 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8989 editor.expand_selected_diff_hunks(cx);
8990 });
8991 }
8992 }),
8993 )
8994 .child(
8995 Button::new(
8996 ("stage-unstage-hunk", row as u64),
8997 if stage { "Stage" } else { "Unstage" },
8998 )
8999 .label_size(LabelSize::Small)
9000 .tooltip({
9001 let focus_handle = editor.focus_handle(cx);
9002 move |window, cx| {
9003 Tooltip::for_action_in(
9004 if stage { "Stage Hunk" } else { "Unstage Hunk" },
9005 &ToggleStagedSelectedDiffHunks,
9006 &focus_handle,
9007 window,
9008 cx,
9009 )
9010 }
9011 })
9012 .on_click({
9013 let editor = editor.clone();
9014 move |_event, _window, cx| {
9015 editor.update(cx, |editor, cx| {
9016 editor
9017 .stage_or_unstage_diff_hunks(&[hunk_range.start..hunk_range.start], cx);
9018 });
9019 }
9020 }),
9021 )
9022 .into_any_element()
9023}