1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlineCompletion,
22 JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RevertSelectedHunks, RowExt,
23 RowRangeExt, SelectPhase, Selection, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold,
24 ToggleStagedSelectedDiffHunks, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus};
28use client::ParticipantIndex;
29use collections::{BTreeMap, HashMap, HashSet};
30use file_icons::FileIcons;
31use git::{blame::BlameEntry, Oid};
32use gpui::{
33 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
34 point, px, quad, relative, size, solid_color, svg, transparent_black, Action, AnyElement, App,
35 AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners,
36 CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable, FontId,
37 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
38 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
39 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
40 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
41 WeakEntity, Window,
42};
43use itertools::Itertools;
44use language::{
45 language_settings::{
46 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
47 ShowWhitespaceSetting,
48 },
49 ChunkRendererContext,
50};
51use lsp::DiagnosticSeverity;
52use multi_buffer::{
53 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
54 RowInfo, ToOffset,
55};
56use project::project_settings::{GitGutterSetting, ProjectSettings};
57use settings::Settings;
58use smallvec::{smallvec, SmallVec};
59use std::{
60 any::TypeId,
61 borrow::Cow,
62 cmp::{self, Ordering},
63 fmt::{self, Write},
64 iter, mem,
65 ops::{Deref, Range},
66 rc::Rc,
67 sync::Arc,
68};
69use sum_tree::Bias;
70use text::BufferId;
71use theme::{ActiveTheme, Appearance, PlayerColor};
72use ui::{
73 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
74 POPOVER_Y_PADDING,
75};
76use unicode_segmentation::UnicodeSegmentation;
77use util::{RangeExt, ResultExt};
78use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
79
80const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
81
82/// Note that for a "modified" MultiBufferDiffHunk, there are two DisplayDiffHunks,
83/// one for the deleted portion and one for the added portion.
84#[derive(Debug, Clone, PartialEq, Eq)]
85enum DisplayDiffHunk {
86 Folded {
87 display_row: DisplayRow,
88 },
89 Unfolded {
90 display_row_range: Range<DisplayRow>,
91 multi_buffer_range: Range<Anchor>,
92 status: DiffHunkStatus,
93 expanded: bool,
94 is_primary: bool,
95 },
96}
97
98struct SelectionLayout {
99 head: DisplayPoint,
100 cursor_shape: CursorShape,
101 is_newest: bool,
102 is_local: bool,
103 range: Range<DisplayPoint>,
104 active_rows: Range<DisplayRow>,
105 user_name: Option<SharedString>,
106}
107
108impl SelectionLayout {
109 fn new<T: multi_buffer::ToPoint + ToDisplayPoint + Clone>(
110 selection: Selection<T>,
111 line_mode: bool,
112 cursor_shape: CursorShape,
113 map: &DisplaySnapshot,
114 is_newest: bool,
115 is_local: bool,
116 user_name: Option<SharedString>,
117 ) -> Self {
118 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
119 let display_selection = point_selection.map(|p| p.to_display_point(map));
120 let mut range = display_selection.range();
121 let mut head = display_selection.head();
122 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
123 ..map.next_line_boundary(point_selection.end).1.row();
124
125 // vim visual line mode
126 if line_mode {
127 let point_range = map.expand_to_line(point_selection.range());
128 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
129 }
130
131 // any vim visual mode (including line mode)
132 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
133 && !range.is_empty()
134 && !selection.reversed
135 {
136 if head.column() > 0 {
137 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
138 } else if head.row().0 > 0 && head != map.max_point() {
139 head = map.clip_point(
140 DisplayPoint::new(
141 head.row().previous_row(),
142 map.line_len(head.row().previous_row()),
143 ),
144 Bias::Left,
145 );
146 // updating range.end is a no-op unless you're cursor is
147 // on the newline containing a multi-buffer divider
148 // in which case the clip_point may have moved the head up
149 // an additional row.
150 range.end = DisplayPoint::new(head.row().next_row(), 0);
151 active_rows.end = head.row();
152 }
153 }
154
155 Self {
156 head,
157 cursor_shape,
158 is_newest,
159 is_local,
160 range,
161 active_rows,
162 user_name,
163 }
164 }
165}
166
167pub struct EditorElement {
168 editor: Entity<Editor>,
169 style: EditorStyle,
170}
171
172type DisplayRowDelta = u32;
173
174impl EditorElement {
175 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
176
177 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
178 Self {
179 editor: editor.clone(),
180 style,
181 }
182 }
183
184 fn register_actions(&self, window: &mut Window, cx: &mut App) {
185 let editor = &self.editor;
186 editor.update(cx, |editor, cx| {
187 for action in editor.editor_actions.borrow().values() {
188 (action)(window, cx)
189 }
190 });
191
192 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
193 crate::clangd_ext::apply_related_actions(editor, window, cx);
194 register_action(editor, window, Editor::open_context_menu);
195 register_action(editor, window, Editor::move_left);
196 register_action(editor, window, Editor::move_right);
197 register_action(editor, window, Editor::move_down);
198 register_action(editor, window, Editor::move_down_by_lines);
199 register_action(editor, window, Editor::select_down_by_lines);
200 register_action(editor, window, Editor::move_up);
201 register_action(editor, window, Editor::move_up_by_lines);
202 register_action(editor, window, Editor::select_up_by_lines);
203 register_action(editor, window, Editor::select_page_down);
204 register_action(editor, window, Editor::select_page_up);
205 register_action(editor, window, Editor::cancel);
206 register_action(editor, window, Editor::newline);
207 register_action(editor, window, Editor::newline_above);
208 register_action(editor, window, Editor::newline_below);
209 register_action(editor, window, Editor::backspace);
210 register_action(editor, window, Editor::delete);
211 register_action(editor, window, Editor::tab);
212 register_action(editor, window, Editor::tab_prev);
213 register_action(editor, window, Editor::indent);
214 register_action(editor, window, Editor::outdent);
215 register_action(editor, window, Editor::autoindent);
216 register_action(editor, window, Editor::delete_line);
217 register_action(editor, window, Editor::join_lines);
218 register_action(editor, window, Editor::sort_lines_case_sensitive);
219 register_action(editor, window, Editor::sort_lines_case_insensitive);
220 register_action(editor, window, Editor::reverse_lines);
221 register_action(editor, window, Editor::shuffle_lines);
222 register_action(editor, window, Editor::convert_to_upper_case);
223 register_action(editor, window, Editor::convert_to_lower_case);
224 register_action(editor, window, Editor::convert_to_title_case);
225 register_action(editor, window, Editor::convert_to_snake_case);
226 register_action(editor, window, Editor::convert_to_kebab_case);
227 register_action(editor, window, Editor::convert_to_upper_camel_case);
228 register_action(editor, window, Editor::convert_to_lower_camel_case);
229 register_action(editor, window, Editor::convert_to_opposite_case);
230 register_action(editor, window, Editor::delete_to_previous_word_start);
231 register_action(editor, window, Editor::delete_to_previous_subword_start);
232 register_action(editor, window, Editor::delete_to_next_word_end);
233 register_action(editor, window, Editor::delete_to_next_subword_end);
234 register_action(editor, window, Editor::delete_to_beginning_of_line);
235 register_action(editor, window, Editor::delete_to_end_of_line);
236 register_action(editor, window, Editor::cut_to_end_of_line);
237 register_action(editor, window, Editor::duplicate_line_up);
238 register_action(editor, window, Editor::duplicate_line_down);
239 register_action(editor, window, Editor::duplicate_selection);
240 register_action(editor, window, Editor::move_line_up);
241 register_action(editor, window, Editor::move_line_down);
242 register_action(editor, window, Editor::transpose);
243 register_action(editor, window, Editor::rewrap);
244 register_action(editor, window, Editor::cut);
245 register_action(editor, window, Editor::kill_ring_cut);
246 register_action(editor, window, Editor::kill_ring_yank);
247 register_action(editor, window, Editor::copy);
248 register_action(editor, window, Editor::paste);
249 register_action(editor, window, Editor::undo);
250 register_action(editor, window, Editor::redo);
251 register_action(editor, window, Editor::move_page_up);
252 register_action(editor, window, Editor::move_page_down);
253 register_action(editor, window, Editor::next_screen);
254 register_action(editor, window, Editor::scroll_cursor_top);
255 register_action(editor, window, Editor::scroll_cursor_center);
256 register_action(editor, window, Editor::scroll_cursor_bottom);
257 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
258 register_action(editor, window, |editor, _: &LineDown, window, cx| {
259 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
260 });
261 register_action(editor, window, |editor, _: &LineUp, window, cx| {
262 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
263 });
264 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
265 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
266 });
267 register_action(
268 editor,
269 window,
270 |editor, HandleInput(text): &HandleInput, window, cx| {
271 if text.is_empty() {
272 return;
273 }
274 editor.handle_input(text, window, cx);
275 },
276 );
277 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
279 });
280 register_action(editor, window, |editor, _: &PageDown, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
282 });
283 register_action(editor, window, |editor, _: &PageUp, window, cx| {
284 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
285 });
286 register_action(editor, window, Editor::move_to_previous_word_start);
287 register_action(editor, window, Editor::move_to_previous_subword_start);
288 register_action(editor, window, Editor::move_to_next_word_end);
289 register_action(editor, window, Editor::move_to_next_subword_end);
290 register_action(editor, window, Editor::move_to_beginning_of_line);
291 register_action(editor, window, Editor::move_to_end_of_line);
292 register_action(editor, window, Editor::move_to_start_of_paragraph);
293 register_action(editor, window, Editor::move_to_end_of_paragraph);
294 register_action(editor, window, Editor::move_to_beginning);
295 register_action(editor, window, Editor::move_to_end);
296 register_action(editor, window, Editor::select_up);
297 register_action(editor, window, Editor::select_down);
298 register_action(editor, window, Editor::select_left);
299 register_action(editor, window, Editor::select_right);
300 register_action(editor, window, Editor::select_to_previous_word_start);
301 register_action(editor, window, Editor::select_to_previous_subword_start);
302 register_action(editor, window, Editor::select_to_next_word_end);
303 register_action(editor, window, Editor::select_to_next_subword_end);
304 register_action(editor, window, Editor::select_to_beginning_of_line);
305 register_action(editor, window, Editor::select_to_end_of_line);
306 register_action(editor, window, Editor::select_to_start_of_paragraph);
307 register_action(editor, window, Editor::select_to_end_of_paragraph);
308 register_action(editor, window, Editor::select_to_beginning);
309 register_action(editor, window, Editor::select_to_end);
310 register_action(editor, window, Editor::select_all);
311 register_action(editor, window, |editor, action, window, cx| {
312 editor.select_all_matches(action, window, cx).log_err();
313 });
314 register_action(editor, window, Editor::select_line);
315 register_action(editor, window, Editor::split_selection_into_lines);
316 register_action(editor, window, Editor::add_selection_above);
317 register_action(editor, window, Editor::add_selection_below);
318 register_action(editor, window, |editor, action, window, cx| {
319 editor.select_next(action, window, cx).log_err();
320 });
321 register_action(editor, window, |editor, action, window, cx| {
322 editor.select_previous(action, window, cx).log_err();
323 });
324 register_action(editor, window, Editor::toggle_comments);
325 register_action(editor, window, Editor::select_larger_syntax_node);
326 register_action(editor, window, Editor::select_smaller_syntax_node);
327 register_action(editor, window, Editor::select_enclosing_symbol);
328 register_action(editor, window, Editor::move_to_enclosing_bracket);
329 register_action(editor, window, Editor::undo_selection);
330 register_action(editor, window, Editor::redo_selection);
331 if !editor.read(cx).is_singleton(cx) {
332 register_action(editor, window, Editor::expand_excerpts);
333 register_action(editor, window, Editor::expand_excerpts_up);
334 register_action(editor, window, Editor::expand_excerpts_down);
335 }
336 register_action(editor, window, Editor::go_to_diagnostic);
337 register_action(editor, window, Editor::go_to_prev_diagnostic);
338 register_action(editor, window, Editor::go_to_next_hunk);
339 register_action(editor, window, Editor::go_to_prev_hunk);
340 register_action(editor, window, |editor, action, window, cx| {
341 editor
342 .go_to_definition(action, window, cx)
343 .detach_and_log_err(cx);
344 });
345 register_action(editor, window, |editor, action, window, cx| {
346 editor
347 .go_to_definition_split(action, window, cx)
348 .detach_and_log_err(cx);
349 });
350 register_action(editor, window, |editor, action, window, cx| {
351 editor
352 .go_to_declaration(action, window, cx)
353 .detach_and_log_err(cx);
354 });
355 register_action(editor, window, |editor, action, window, cx| {
356 editor
357 .go_to_declaration_split(action, window, cx)
358 .detach_and_log_err(cx);
359 });
360 register_action(editor, window, |editor, action, window, cx| {
361 editor
362 .go_to_implementation(action, window, cx)
363 .detach_and_log_err(cx);
364 });
365 register_action(editor, window, |editor, action, window, cx| {
366 editor
367 .go_to_implementation_split(action, window, cx)
368 .detach_and_log_err(cx);
369 });
370 register_action(editor, window, |editor, action, window, cx| {
371 editor
372 .go_to_type_definition(action, window, cx)
373 .detach_and_log_err(cx);
374 });
375 register_action(editor, window, |editor, action, window, cx| {
376 editor
377 .go_to_type_definition_split(action, window, cx)
378 .detach_and_log_err(cx);
379 });
380 register_action(editor, window, Editor::open_url);
381 register_action(editor, window, Editor::open_selected_filename);
382 register_action(editor, window, Editor::fold);
383 register_action(editor, window, Editor::fold_at_level);
384 register_action(editor, window, Editor::fold_all);
385 register_action(editor, window, Editor::fold_function_bodies);
386 register_action(editor, window, Editor::fold_at);
387 register_action(editor, window, Editor::fold_recursive);
388 register_action(editor, window, Editor::toggle_fold);
389 register_action(editor, window, Editor::toggle_fold_recursive);
390 register_action(editor, window, Editor::unfold_lines);
391 register_action(editor, window, Editor::unfold_recursive);
392 register_action(editor, window, Editor::unfold_all);
393 register_action(editor, window, Editor::unfold_at);
394 register_action(editor, window, Editor::fold_selected_ranges);
395 register_action(editor, window, Editor::set_mark);
396 register_action(editor, window, Editor::swap_selection_ends);
397 register_action(editor, window, Editor::show_completions);
398 register_action(editor, window, Editor::toggle_code_actions);
399 register_action(editor, window, Editor::open_excerpts);
400 register_action(editor, window, Editor::open_excerpts_in_split);
401 register_action(editor, window, Editor::open_proposed_changes_editor);
402 register_action(editor, window, Editor::toggle_soft_wrap);
403 register_action(editor, window, Editor::toggle_tab_bar);
404 register_action(editor, window, Editor::toggle_line_numbers);
405 register_action(editor, window, Editor::toggle_relative_line_numbers);
406 register_action(editor, window, Editor::toggle_indent_guides);
407 register_action(editor, window, Editor::toggle_inlay_hints);
408 register_action(editor, window, Editor::toggle_inline_completions);
409 register_action(editor, window, hover_popover::hover);
410 register_action(editor, window, Editor::reveal_in_finder);
411 register_action(editor, window, Editor::copy_path);
412 register_action(editor, window, Editor::copy_relative_path);
413 register_action(editor, window, Editor::copy_file_name);
414 register_action(editor, window, Editor::copy_file_name_without_extension);
415 register_action(editor, window, Editor::copy_highlight_json);
416 register_action(editor, window, Editor::copy_permalink_to_line);
417 register_action(editor, window, Editor::open_permalink_to_line);
418 register_action(editor, window, Editor::copy_file_location);
419 register_action(editor, window, Editor::toggle_git_blame);
420 register_action(editor, window, Editor::toggle_git_blame_inline);
421 register_action(editor, window, Editor::toggle_selected_diff_hunks);
422 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
423 register_action(editor, window, Editor::expand_all_diff_hunks);
424
425 register_action(editor, window, |editor, action, window, cx| {
426 if let Some(task) = editor.format(action, window, cx) {
427 task.detach_and_notify_err(window, cx);
428 } else {
429 cx.propagate();
430 }
431 });
432 register_action(editor, window, |editor, action, window, cx| {
433 if let Some(task) = editor.format_selections(action, window, cx) {
434 task.detach_and_notify_err(window, cx);
435 } else {
436 cx.propagate();
437 }
438 });
439 register_action(editor, window, Editor::restart_language_server);
440 register_action(editor, window, Editor::show_character_palette);
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.confirm_completion(action, window, cx) {
443 task.detach_and_notify_err(window, cx);
444 } else {
445 cx.propagate();
446 }
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.compose_completion(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.confirm_code_action(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, |editor, action, window, cx| {
463 if let Some(task) = editor.rename(action, window, cx) {
464 task.detach_and_notify_err(window, cx);
465 } else {
466 cx.propagate();
467 }
468 });
469 register_action(editor, window, |editor, action, window, cx| {
470 if let Some(task) = editor.confirm_rename(action, window, cx) {
471 task.detach_and_notify_err(window, cx);
472 } else {
473 cx.propagate();
474 }
475 });
476 register_action(editor, window, |editor, action, window, cx| {
477 if let Some(task) = editor.find_all_references(action, window, cx) {
478 task.detach_and_log_err(cx);
479 } else {
480 cx.propagate();
481 }
482 });
483 register_action(editor, window, Editor::show_signature_help);
484 register_action(editor, window, Editor::next_edit_prediction);
485 register_action(editor, window, Editor::previous_edit_prediction);
486 register_action(editor, window, Editor::show_inline_completion);
487 register_action(editor, window, Editor::context_menu_first);
488 register_action(editor, window, Editor::context_menu_prev);
489 register_action(editor, window, Editor::context_menu_next);
490 register_action(editor, window, Editor::context_menu_last);
491 register_action(editor, window, Editor::display_cursor_names);
492 register_action(editor, window, Editor::unique_lines_case_insensitive);
493 register_action(editor, window, Editor::unique_lines_case_sensitive);
494 register_action(editor, window, Editor::accept_partial_inline_completion);
495 register_action(editor, window, Editor::accept_edit_prediction);
496 register_action(editor, window, Editor::revert_file);
497 register_action(editor, window, Editor::revert_selected_hunks);
498 register_action(editor, window, Editor::apply_all_diff_hunks);
499 register_action(editor, window, Editor::apply_selected_diff_hunks);
500 register_action(editor, window, Editor::open_active_item_in_terminal);
501 register_action(editor, window, Editor::reload_file);
502 register_action(editor, window, Editor::spawn_nearest_task);
503 register_action(editor, window, Editor::insert_uuid_v4);
504 register_action(editor, window, Editor::insert_uuid_v7);
505 register_action(editor, window, Editor::open_selections_in_multibuffer);
506 }
507
508 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
509 let position_map = layout.position_map.clone();
510 window.on_key_event({
511 let editor = self.editor.clone();
512 move |event: &ModifiersChangedEvent, phase, window, cx| {
513 if phase != DispatchPhase::Bubble {
514 return;
515 }
516 editor.update(cx, |editor, cx| {
517 if editor.hover_state.focused(window, cx) {
518 return;
519 }
520 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
521 })
522 }
523 });
524 }
525
526 fn mouse_left_down(
527 editor: &mut Editor,
528 event: &MouseDownEvent,
529 hovered_hunk: Option<Range<Anchor>>,
530 position_map: &PositionMap,
531 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
532 window: &mut Window,
533 cx: &mut Context<Editor>,
534 ) {
535 if window.default_prevented() {
536 return;
537 }
538
539 let text_hitbox = &position_map.text_hitbox;
540 let gutter_hitbox = &position_map.gutter_hitbox;
541 let mut click_count = event.click_count;
542 let mut modifiers = event.modifiers;
543
544 if let Some(hovered_hunk) = hovered_hunk {
545 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
546 cx.notify();
547 return;
548 } else if gutter_hitbox.is_hovered(window) {
549 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
550 } else if !text_hitbox.is_hovered(window) {
551 return;
552 }
553
554 let is_singleton = editor.buffer().read(cx).is_singleton();
555
556 if click_count == 2 && !is_singleton {
557 match EditorSettings::get_global(cx).double_click_in_multibuffer {
558 DoubleClickInMultibuffer::Select => {
559 // do nothing special on double click, all selection logic is below
560 }
561 DoubleClickInMultibuffer::Open => {
562 if modifiers.alt {
563 // if double click is made with alt, pretend it's a regular double click without opening and alt,
564 // and run the selection logic.
565 modifiers.alt = false;
566 } else {
567 let scroll_position_row =
568 position_map.scroll_pixel_position.y / position_map.line_height;
569 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
570 + position_map.scroll_pixel_position.y)
571 / position_map.line_height)
572 as u32;
573 let multi_buffer_row = position_map
574 .snapshot
575 .display_point_to_point(
576 DisplayPoint::new(DisplayRow(display_row), 0),
577 Bias::Right,
578 )
579 .row;
580 let line_offset_from_top = display_row - scroll_position_row as u32;
581 // if double click is made without alt, open the corresponding excerp
582 editor.open_excerpts_common(
583 Some(JumpData::MultiBufferRow {
584 row: MultiBufferRow(multi_buffer_row),
585 line_offset_from_top,
586 }),
587 false,
588 window,
589 cx,
590 );
591 return;
592 }
593 }
594 }
595 }
596
597 let point_for_position = position_map.point_for_position(event.position);
598 let position = point_for_position.previous_valid;
599 if modifiers.shift && modifiers.alt {
600 editor.select(
601 SelectPhase::BeginColumnar {
602 position,
603 reset: false,
604 goal_column: point_for_position.exact_unclipped.column(),
605 },
606 window,
607 cx,
608 );
609 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
610 {
611 editor.select(
612 SelectPhase::Extend {
613 position,
614 click_count,
615 },
616 window,
617 cx,
618 );
619 } else {
620 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
621 let multi_cursor_modifier = match multi_cursor_setting {
622 MultiCursorModifier::Alt => modifiers.alt,
623 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
624 };
625 editor.select(
626 SelectPhase::Begin {
627 position,
628 add: multi_cursor_modifier,
629 click_count,
630 },
631 window,
632 cx,
633 );
634 }
635 cx.stop_propagation();
636
637 if !is_singleton {
638 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
639 + position_map.scroll_pixel_position.y)
640 / position_map.line_height) as u32;
641 let multi_buffer_row = position_map
642 .snapshot
643 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
644 .row;
645 if line_numbers
646 .get(&MultiBufferRow(multi_buffer_row))
647 .and_then(|line_number| line_number.hitbox.as_ref())
648 .is_some_and(|hitbox| hitbox.contains(&event.position))
649 {
650 let scroll_position_row =
651 position_map.scroll_pixel_position.y / position_map.line_height;
652 let line_offset_from_top = display_row - scroll_position_row as u32;
653
654 editor.open_excerpts_common(
655 Some(JumpData::MultiBufferRow {
656 row: MultiBufferRow(multi_buffer_row),
657 line_offset_from_top,
658 }),
659 modifiers.alt,
660 window,
661 cx,
662 );
663 cx.stop_propagation();
664 }
665 }
666 }
667
668 fn mouse_right_down(
669 editor: &mut Editor,
670 event: &MouseDownEvent,
671 position_map: &PositionMap,
672 window: &mut Window,
673 cx: &mut Context<Editor>,
674 ) {
675 if !position_map.text_hitbox.is_hovered(window) {
676 return;
677 }
678 let point_for_position = position_map.point_for_position(event.position);
679 mouse_context_menu::deploy_context_menu(
680 editor,
681 Some(event.position),
682 point_for_position.previous_valid,
683 window,
684 cx,
685 );
686 cx.stop_propagation();
687 }
688
689 fn mouse_middle_down(
690 editor: &mut Editor,
691 event: &MouseDownEvent,
692 position_map: &PositionMap,
693 window: &mut Window,
694 cx: &mut Context<Editor>,
695 ) {
696 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
697 return;
698 }
699
700 let point_for_position = position_map.point_for_position(event.position);
701 let position = point_for_position.previous_valid;
702
703 editor.select(
704 SelectPhase::BeginColumnar {
705 position,
706 reset: true,
707 goal_column: point_for_position.exact_unclipped.column(),
708 },
709 window,
710 cx,
711 );
712 }
713
714 fn mouse_up(
715 editor: &mut Editor,
716 event: &MouseUpEvent,
717 position_map: &PositionMap,
718 window: &mut Window,
719 cx: &mut Context<Editor>,
720 ) {
721 let text_hitbox = &position_map.text_hitbox;
722 let end_selection = editor.has_pending_selection();
723 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
724
725 if end_selection {
726 editor.select(SelectPhase::End, window, cx);
727 }
728
729 if end_selection && pending_nonempty_selections {
730 cx.stop_propagation();
731 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
732 && event.button == MouseButton::Middle
733 {
734 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
735 return;
736 }
737
738 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
739 if EditorSettings::get_global(cx).middle_click_paste {
740 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
741 let point_for_position = position_map.point_for_position(event.position);
742 let position = point_for_position.previous_valid;
743
744 editor.select(
745 SelectPhase::Begin {
746 position,
747 add: false,
748 click_count: 1,
749 },
750 window,
751 cx,
752 );
753 editor.insert(&text, window, cx);
754 }
755 cx.stop_propagation()
756 }
757 }
758 }
759
760 fn click(
761 editor: &mut Editor,
762 event: &ClickEvent,
763 position_map: &PositionMap,
764 window: &mut Window,
765 cx: &mut Context<Editor>,
766 ) {
767 let text_hitbox = &position_map.text_hitbox;
768 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
769
770 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
771 let multi_cursor_modifier = match multi_cursor_setting {
772 MultiCursorModifier::Alt => event.modifiers().secondary(),
773 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
774 };
775
776 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
777 let point = position_map.point_for_position(event.up.position);
778 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
779
780 cx.stop_propagation();
781 }
782 }
783
784 fn mouse_dragged(
785 editor: &mut Editor,
786 event: &MouseMoveEvent,
787 position_map: &PositionMap,
788 window: &mut Window,
789 cx: &mut Context<Editor>,
790 ) {
791 if !editor.has_pending_selection() {
792 return;
793 }
794
795 let text_bounds = position_map.text_hitbox.bounds;
796 let point_for_position = position_map.point_for_position(event.position);
797 let mut scroll_delta = gpui::Point::<f32>::default();
798 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
799 let top = text_bounds.origin.y + vertical_margin;
800 let bottom = text_bounds.bottom_left().y - vertical_margin;
801 if event.position.y < top {
802 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
803 }
804 if event.position.y > bottom {
805 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
806 }
807
808 // We need horizontal width of text
809 let style = editor.style.clone().unwrap_or_default();
810 let font_id = window.text_system().resolve_font(&style.text.font());
811 let font_size = style.text.font_size.to_pixels(window.rem_size());
812 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
813
814 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
815
816 let scroll_space: Pixels = scroll_margin_x * em_width;
817
818 let left = text_bounds.origin.x + scroll_space;
819 let right = text_bounds.top_right().x - scroll_space;
820
821 if event.position.x < left {
822 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
823 }
824 if event.position.x > right {
825 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
826 }
827
828 editor.select(
829 SelectPhase::Update {
830 position: point_for_position.previous_valid,
831 goal_column: point_for_position.exact_unclipped.column(),
832 scroll_delta,
833 },
834 window,
835 cx,
836 );
837 }
838
839 fn mouse_moved(
840 editor: &mut Editor,
841 event: &MouseMoveEvent,
842 position_map: &PositionMap,
843 window: &mut Window,
844 cx: &mut Context<Editor>,
845 ) {
846 let text_hitbox = &position_map.text_hitbox;
847 let gutter_hitbox = &position_map.gutter_hitbox;
848 let modifiers = event.modifiers;
849 let gutter_hovered = gutter_hitbox.is_hovered(window);
850 editor.set_gutter_hovered(gutter_hovered, cx);
851
852 // Don't trigger hover popover if mouse is hovering over context menu
853 if text_hitbox.is_hovered(window) {
854 let point_for_position = position_map.point_for_position(event.position);
855
856 editor.update_hovered_link(
857 point_for_position,
858 &position_map.snapshot,
859 modifiers,
860 window,
861 cx,
862 );
863
864 if let Some(point) = point_for_position.as_valid() {
865 let anchor = position_map
866 .snapshot
867 .buffer_snapshot
868 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
869 hover_at(editor, Some(anchor), window, cx);
870 Self::update_visible_cursor(editor, point, position_map, window, cx);
871 } else {
872 hover_at(editor, None, window, cx);
873 }
874 } else {
875 editor.hide_hovered_link(cx);
876 hover_at(editor, None, window, cx);
877 if gutter_hovered {
878 cx.stop_propagation();
879 }
880 }
881 }
882
883 fn update_visible_cursor(
884 editor: &mut Editor,
885 point: DisplayPoint,
886 position_map: &PositionMap,
887 window: &mut Window,
888 cx: &mut Context<Editor>,
889 ) {
890 let snapshot = &position_map.snapshot;
891 let Some(hub) = editor.collaboration_hub() else {
892 return;
893 };
894 let start = snapshot.display_snapshot.clip_point(
895 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
896 Bias::Left,
897 );
898 let end = snapshot.display_snapshot.clip_point(
899 DisplayPoint::new(
900 point.row(),
901 (point.column() + 1).min(snapshot.line_len(point.row())),
902 ),
903 Bias::Right,
904 );
905
906 let range = snapshot
907 .buffer_snapshot
908 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
909 ..snapshot
910 .buffer_snapshot
911 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
912
913 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
914 return;
915 };
916 let key = crate::HoveredCursor {
917 replica_id: selection.replica_id,
918 selection_id: selection.selection.id,
919 };
920 editor.hovered_cursors.insert(
921 key.clone(),
922 cx.spawn_in(window, |editor, mut cx| async move {
923 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
924 editor
925 .update(&mut cx, |editor, cx| {
926 editor.hovered_cursors.remove(&key);
927 cx.notify();
928 })
929 .ok();
930 }),
931 );
932 cx.notify()
933 }
934
935 #[allow(clippy::too_many_arguments)]
936 fn layout_selections(
937 &self,
938 start_anchor: Anchor,
939 end_anchor: Anchor,
940 local_selections: &[Selection<Point>],
941 snapshot: &EditorSnapshot,
942 start_row: DisplayRow,
943 end_row: DisplayRow,
944 window: &mut Window,
945 cx: &mut App,
946 ) -> (
947 Vec<(PlayerColor, Vec<SelectionLayout>)>,
948 BTreeMap<DisplayRow, bool>,
949 Option<DisplayPoint>,
950 ) {
951 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
952 let mut active_rows = BTreeMap::new();
953 let mut newest_selection_head = None;
954 self.editor.update(cx, |editor, cx| {
955 if editor.show_local_selections {
956 let mut layouts = Vec::new();
957 let newest = editor.selections.newest(cx);
958 for selection in local_selections.iter().cloned() {
959 let is_empty = selection.start == selection.end;
960 let is_newest = selection == newest;
961
962 let layout = SelectionLayout::new(
963 selection,
964 editor.selections.line_mode,
965 editor.cursor_shape,
966 &snapshot.display_snapshot,
967 is_newest,
968 editor.leader_peer_id.is_none(),
969 None,
970 );
971 if is_newest {
972 newest_selection_head = Some(layout.head);
973 }
974
975 for row in cmp::max(layout.active_rows.start.0, start_row.0)
976 ..=cmp::min(layout.active_rows.end.0, end_row.0)
977 {
978 let contains_non_empty_selection =
979 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
980 *contains_non_empty_selection |= !is_empty;
981 }
982 layouts.push(layout);
983 }
984
985 let player = editor.current_user_player_color(cx);
986 selections.push((player, layouts));
987 }
988
989 if let Some(collaboration_hub) = &editor.collaboration_hub {
990 // When following someone, render the local selections in their color.
991 if let Some(leader_id) = editor.leader_peer_id {
992 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
993 {
994 if let Some(participant_index) = collaboration_hub
995 .user_participant_indices(cx)
996 .get(&collaborator.user_id)
997 {
998 if let Some((local_selection_style, _)) = selections.first_mut() {
999 *local_selection_style = cx
1000 .theme()
1001 .players()
1002 .color_for_participant(participant_index.0);
1003 }
1004 }
1005 }
1006 }
1007
1008 let mut remote_selections = HashMap::default();
1009 for selection in snapshot.remote_selections_in_range(
1010 &(start_anchor..end_anchor),
1011 collaboration_hub.as_ref(),
1012 cx,
1013 ) {
1014 let selection_style =
1015 Self::get_participant_color(selection.participant_index, cx);
1016
1017 // Don't re-render the leader's selections, since the local selections
1018 // match theirs.
1019 if Some(selection.peer_id) == editor.leader_peer_id {
1020 continue;
1021 }
1022 let key = HoveredCursor {
1023 replica_id: selection.replica_id,
1024 selection_id: selection.selection.id,
1025 };
1026
1027 let is_shown =
1028 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1029
1030 remote_selections
1031 .entry(selection.replica_id)
1032 .or_insert((selection_style, Vec::new()))
1033 .1
1034 .push(SelectionLayout::new(
1035 selection.selection,
1036 selection.line_mode,
1037 selection.cursor_shape,
1038 &snapshot.display_snapshot,
1039 false,
1040 false,
1041 if is_shown { selection.user_name } else { None },
1042 ));
1043 }
1044
1045 selections.extend(remote_selections.into_values());
1046 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1047 let layouts = snapshot
1048 .buffer_snapshot
1049 .selections_in_range(&(start_anchor..end_anchor), true)
1050 .map(move |(_, line_mode, cursor_shape, selection)| {
1051 SelectionLayout::new(
1052 selection,
1053 line_mode,
1054 cursor_shape,
1055 &snapshot.display_snapshot,
1056 false,
1057 false,
1058 None,
1059 )
1060 })
1061 .collect::<Vec<_>>();
1062 let player = editor.current_user_player_color(cx);
1063 selections.push((player, layouts));
1064 }
1065 });
1066 (selections, active_rows, newest_selection_head)
1067 }
1068
1069 fn collect_cursors(
1070 &self,
1071 snapshot: &EditorSnapshot,
1072 cx: &mut App,
1073 ) -> Vec<(DisplayPoint, Hsla)> {
1074 let editor = self.editor.read(cx);
1075 let mut cursors = Vec::new();
1076 let mut skip_local = false;
1077 let mut add_cursor = |anchor: Anchor, color| {
1078 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1079 };
1080 // Remote cursors
1081 if let Some(collaboration_hub) = &editor.collaboration_hub {
1082 for remote_selection in snapshot.remote_selections_in_range(
1083 &(Anchor::min()..Anchor::max()),
1084 collaboration_hub.deref(),
1085 cx,
1086 ) {
1087 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1088 add_cursor(remote_selection.selection.head(), color.cursor);
1089 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1090 skip_local = true;
1091 }
1092 }
1093 }
1094 // Local cursors
1095 if !skip_local {
1096 let color = cx.theme().players().local().cursor;
1097 editor.selections.disjoint.iter().for_each(|selection| {
1098 add_cursor(selection.head(), color);
1099 });
1100 if let Some(ref selection) = editor.selections.pending_anchor() {
1101 add_cursor(selection.head(), color);
1102 }
1103 }
1104 cursors
1105 }
1106
1107 #[allow(clippy::too_many_arguments)]
1108 fn layout_visible_cursors(
1109 &self,
1110 snapshot: &EditorSnapshot,
1111 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1112 block_start_rows: &HashSet<DisplayRow>,
1113 visible_display_row_range: Range<DisplayRow>,
1114 line_layouts: &[LineWithInvisibles],
1115 text_hitbox: &Hitbox,
1116 content_origin: gpui::Point<Pixels>,
1117 scroll_position: gpui::Point<f32>,
1118 scroll_pixel_position: gpui::Point<Pixels>,
1119 line_height: Pixels,
1120 em_width: Pixels,
1121 em_advance: Pixels,
1122 autoscroll_containing_element: bool,
1123 window: &mut Window,
1124 cx: &mut App,
1125 ) -> Vec<CursorLayout> {
1126 let mut autoscroll_bounds = None;
1127 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1128 let mut cursors = Vec::new();
1129
1130 let show_local_cursors = editor.show_local_cursors(window, cx);
1131
1132 for (player_color, selections) in selections {
1133 for selection in selections {
1134 let cursor_position = selection.head;
1135
1136 let in_range = visible_display_row_range.contains(&cursor_position.row());
1137 if (selection.is_local && !show_local_cursors)
1138 || !in_range
1139 || block_start_rows.contains(&cursor_position.row())
1140 {
1141 continue;
1142 }
1143
1144 let cursor_row_layout = &line_layouts
1145 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1146 let cursor_column = cursor_position.column() as usize;
1147
1148 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1149 let mut block_width =
1150 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1151 if block_width == Pixels::ZERO {
1152 block_width = em_advance;
1153 }
1154 let block_text = if let CursorShape::Block = selection.cursor_shape {
1155 snapshot
1156 .grapheme_at(cursor_position)
1157 .or_else(|| {
1158 if cursor_column == 0 {
1159 snapshot.placeholder_text().and_then(|s| {
1160 s.graphemes(true).next().map(|s| s.to_string().into())
1161 })
1162 } else {
1163 None
1164 }
1165 })
1166 .and_then(|text| {
1167 let len = text.len();
1168
1169 let font = cursor_row_layout
1170 .font_id_for_index(cursor_column)
1171 .and_then(|cursor_font_id| {
1172 window.text_system().get_font_for_id(cursor_font_id)
1173 })
1174 .unwrap_or(self.style.text.font());
1175
1176 // Invert the text color for the block cursor. Ensure that the text
1177 // color is opaque enough to be visible against the background color.
1178 //
1179 // 0.75 is an arbitrary threshold to determine if the background color is
1180 // opaque enough to use as a text color.
1181 //
1182 // TODO: In the future we should ensure themes have a `text_inverse` color.
1183 let color = if cx.theme().colors().editor_background.a < 0.75 {
1184 match cx.theme().appearance {
1185 Appearance::Dark => Hsla::black(),
1186 Appearance::Light => Hsla::white(),
1187 }
1188 } else {
1189 cx.theme().colors().editor_background
1190 };
1191
1192 window
1193 .text_system()
1194 .shape_line(
1195 text,
1196 cursor_row_layout.font_size,
1197 &[TextRun {
1198 len,
1199 font,
1200 color,
1201 background_color: None,
1202 strikethrough: None,
1203 underline: None,
1204 }],
1205 )
1206 .log_err()
1207 })
1208 } else {
1209 None
1210 };
1211
1212 let x = cursor_character_x - scroll_pixel_position.x;
1213 let y = (cursor_position.row().as_f32()
1214 - scroll_pixel_position.y / line_height)
1215 * line_height;
1216 if selection.is_newest {
1217 editor.pixel_position_of_newest_cursor = Some(point(
1218 text_hitbox.origin.x + x + block_width / 2.,
1219 text_hitbox.origin.y + y + line_height / 2.,
1220 ));
1221
1222 if autoscroll_containing_element {
1223 let top = text_hitbox.origin.y
1224 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1225 * line_height;
1226 let left = text_hitbox.origin.x
1227 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1228 .max(0.)
1229 * em_width;
1230
1231 let bottom = text_hitbox.origin.y
1232 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1233 * line_height;
1234 let right = text_hitbox.origin.x
1235 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1236 * em_width;
1237
1238 autoscroll_bounds =
1239 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1240 }
1241 }
1242
1243 let mut cursor = CursorLayout {
1244 color: player_color.cursor,
1245 block_width,
1246 origin: point(x, y),
1247 line_height,
1248 shape: selection.cursor_shape,
1249 block_text,
1250 cursor_name: None,
1251 };
1252 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1253 string: name,
1254 color: self.style.background,
1255 is_top_row: cursor_position.row().0 == 0,
1256 });
1257 cursor.layout(content_origin, cursor_name, window, cx);
1258 cursors.push(cursor);
1259 }
1260 }
1261
1262 cursors
1263 });
1264
1265 if let Some(bounds) = autoscroll_bounds {
1266 window.request_autoscroll(bounds);
1267 }
1268
1269 cursor_layouts
1270 }
1271
1272 fn layout_scrollbars(
1273 &self,
1274 snapshot: &EditorSnapshot,
1275 scrollbar_range_data: ScrollbarRangeData,
1276 scroll_position: gpui::Point<f32>,
1277 non_visible_cursors: bool,
1278 window: &mut Window,
1279 cx: &mut App,
1280 ) -> AxisPair<Option<ScrollbarLayout>> {
1281 let letter_size = scrollbar_range_data.letter_size;
1282 let text_units_per_page = axis_pair(
1283 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1284 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1285 );
1286
1287 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1288 let show_scrollbars = self.editor.read(cx).show_scrollbars
1289 && match scrollbar_settings.show {
1290 ShowScrollbar::Auto => {
1291 let editor = self.editor.read(cx);
1292 let is_singleton = editor.is_singleton(cx);
1293 // Git
1294 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1295 ||
1296 // Buffer Search Results
1297 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1298 ||
1299 // Selected Symbol Occurrences
1300 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1301 ||
1302 // Diagnostics
1303 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1304 ||
1305 // Cursors out of sight
1306 non_visible_cursors
1307 ||
1308 // Scrollmanager
1309 editor.scroll_manager.scrollbars_visible()
1310 }
1311 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1312 ShowScrollbar::Always => true,
1313 ShowScrollbar::Never => false,
1314 };
1315
1316 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1317
1318 if snapshot.mode != EditorMode::Full {
1319 return axis_pair(None, None);
1320 }
1321
1322 let visible_range = axis_pair(
1323 axes.horizontal
1324 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1325 axes.vertical
1326 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1327 );
1328
1329 // If a drag took place after we started dragging the scrollbar,
1330 // cancel the scrollbar drag.
1331 if cx.has_active_drag() {
1332 self.editor.update(cx, |editor, cx| {
1333 editor
1334 .scroll_manager
1335 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1336 editor
1337 .scroll_manager
1338 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1339 });
1340 }
1341
1342 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1343
1344 let track_bounds = axis_pair(
1345 axes.horizontal.then(|| {
1346 Bounds::from_corners(
1347 point(
1348 text_bounds.bottom_left().x,
1349 text_bounds.bottom_left().y - self.style.scrollbar_width,
1350 ),
1351 point(
1352 text_bounds.bottom_right().x
1353 - if axes.vertical {
1354 self.style.scrollbar_width
1355 } else {
1356 px(0.)
1357 },
1358 text_bounds.bottom_right().y,
1359 ),
1360 )
1361 }),
1362 axes.vertical.then(|| {
1363 Bounds::from_corners(
1364 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1365 text_bounds.bottom_right(),
1366 )
1367 }),
1368 );
1369
1370 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1371 let total_text_units = axis_pair(
1372 Some(scroll_range_size.width / letter_size.width),
1373 Some(scroll_range_size.height / letter_size.height),
1374 );
1375
1376 let thumb_size = axis_pair(
1377 total_text_units
1378 .horizontal
1379 .zip(track_bounds.horizontal)
1380 .and_then(|(total_text_units_x, track_bounds_x)| {
1381 if text_units_per_page.horizontal >= total_text_units_x {
1382 return None;
1383 }
1384
1385 let thumb_percent =
1386 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1387
1388 Some(track_bounds_x.size.width * thumb_percent)
1389 }),
1390 total_text_units.vertical.zip(track_bounds.vertical).map(
1391 |(total_text_units_y, track_bounds_y)| {
1392 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1393
1394 track_bounds_y.size.height * thumb_percent
1395 },
1396 ),
1397 );
1398
1399 // NOTE: Space not taken by track bounds divided by text units not on screen
1400 let text_unit_size = axis_pair(
1401 thumb_size
1402 .horizontal
1403 .zip(track_bounds.horizontal)
1404 .zip(total_text_units.horizontal)
1405 .map(|((thumb_size, track_bounds), total_text_units)| {
1406 (track_bounds.size.width - thumb_size)
1407 / (total_text_units - text_units_per_page.horizontal).max(0.)
1408 }),
1409 thumb_size
1410 .vertical
1411 .zip(track_bounds.vertical)
1412 .zip(total_text_units.vertical)
1413 .map(|((thumb_size, track_bounds), total_text_units)| {
1414 (track_bounds.size.height - thumb_size)
1415 / (total_text_units - text_units_per_page.vertical).max(0.)
1416 }),
1417 );
1418
1419 let horizontal_scrollbar = track_bounds
1420 .horizontal
1421 .zip(visible_range.horizontal)
1422 .zip(text_unit_size.horizontal)
1423 .zip(thumb_size.horizontal)
1424 .map(
1425 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1426 hitbox: window.insert_hitbox(track_bounds, false),
1427 visible_range,
1428 text_unit_size,
1429 visible: show_scrollbars,
1430 thumb_size,
1431 axis: Axis::Horizontal,
1432 },
1433 );
1434
1435 let vertical_scrollbar = track_bounds
1436 .vertical
1437 .zip(visible_range.vertical)
1438 .zip(text_unit_size.vertical)
1439 .zip(thumb_size.vertical)
1440 .map(
1441 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1442 hitbox: window.insert_hitbox(track_bounds, false),
1443 visible_range,
1444 text_unit_size,
1445 visible: show_scrollbars,
1446 thumb_size,
1447 axis: Axis::Vertical,
1448 },
1449 );
1450
1451 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1452 }
1453
1454 #[allow(clippy::too_many_arguments)]
1455 fn prepaint_crease_toggles(
1456 &self,
1457 crease_toggles: &mut [Option<AnyElement>],
1458 line_height: Pixels,
1459 gutter_dimensions: &GutterDimensions,
1460 gutter_settings: crate::editor_settings::Gutter,
1461 scroll_pixel_position: gpui::Point<Pixels>,
1462 gutter_hitbox: &Hitbox,
1463 window: &mut Window,
1464 cx: &mut App,
1465 ) {
1466 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1467 if let Some(crease_toggle) = crease_toggle {
1468 debug_assert!(gutter_settings.folds);
1469 let available_space = size(
1470 AvailableSpace::MinContent,
1471 AvailableSpace::Definite(line_height * 0.55),
1472 );
1473 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1474
1475 let position = point(
1476 gutter_dimensions.width - gutter_dimensions.right_padding,
1477 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1478 );
1479 let centering_offset = point(
1480 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1481 (line_height - crease_toggle_size.height) / 2.,
1482 );
1483 let origin = gutter_hitbox.origin + position + centering_offset;
1484 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1485 }
1486 }
1487 }
1488
1489 #[allow(clippy::too_many_arguments)]
1490 fn prepaint_crease_trailers(
1491 &self,
1492 trailers: Vec<Option<AnyElement>>,
1493 lines: &[LineWithInvisibles],
1494 line_height: Pixels,
1495 content_origin: gpui::Point<Pixels>,
1496 scroll_pixel_position: gpui::Point<Pixels>,
1497 em_width: Pixels,
1498 window: &mut Window,
1499 cx: &mut App,
1500 ) -> Vec<Option<CreaseTrailerLayout>> {
1501 trailers
1502 .into_iter()
1503 .enumerate()
1504 .map(|(ix, element)| {
1505 let mut element = element?;
1506 let available_space = size(
1507 AvailableSpace::MinContent,
1508 AvailableSpace::Definite(line_height),
1509 );
1510 let size = element.layout_as_root(available_space, window, cx);
1511
1512 let line = &lines[ix];
1513 let padding = if line.width == Pixels::ZERO {
1514 Pixels::ZERO
1515 } else {
1516 4. * em_width
1517 };
1518 let position = point(
1519 scroll_pixel_position.x + line.width + padding,
1520 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1521 );
1522 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1523 let origin = content_origin + position + centering_offset;
1524 element.prepaint_as_root(origin, available_space, window, cx);
1525 Some(CreaseTrailerLayout {
1526 element,
1527 bounds: Bounds::new(origin, size),
1528 })
1529 })
1530 .collect()
1531 }
1532
1533 // Folds contained in a hunk are ignored apart from shrinking visual size
1534 // If a fold contains any hunks then that fold line is marked as modified
1535 fn layout_gutter_diff_hunks(
1536 &self,
1537 line_height: Pixels,
1538 gutter_hitbox: &Hitbox,
1539 display_rows: Range<DisplayRow>,
1540 snapshot: &EditorSnapshot,
1541 window: &mut Window,
1542 cx: &mut App,
1543 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1544 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1545 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1546
1547 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1548 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1549
1550 for hunk in snapshot
1551 .buffer_snapshot
1552 .diff_hunks_in_range(buffer_start..buffer_end)
1553 {
1554 if folded_buffers.contains(&hunk.buffer_id) {
1555 continue;
1556 }
1557
1558 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1559 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1560
1561 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1562 let hunk_added_start_at =
1563 Anchor::in_buffer(hunk.excerpt_id, hunk.buffer_id, hunk.buffer_range.start);
1564 let hunk_deleted_to_added_break = snapshot.point_to_display_point(
1565 hunk_added_start_at.to_point(&snapshot.buffer_snapshot),
1566 Bias::Right,
1567 );
1568
1569 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1570
1571 if hunk_display_start.column() != 0 {
1572 display_hunks.push((
1573 DisplayDiffHunk::Folded {
1574 display_row: hunk_display_start.row(),
1575 },
1576 None,
1577 ));
1578 } else {
1579 let mut end_row = hunk_display_end.row();
1580 if hunk_display_end.column() > 0 {
1581 end_row.0 += 1;
1582 }
1583 let deleted_count = snapshot
1584 .buffer_snapshot
1585 .row_infos(hunk.row_range.start)
1586 .take(hunk.row_range.end.0 as usize - hunk.row_range.start.0 as usize)
1587 .take_while(|row_info| {
1588 matches!(row_info.diff_status, Some(DiffHunkStatus::Removed(_)))
1589 })
1590 .count();
1591 let has_added = snapshot
1592 .buffer_snapshot
1593 .row_infos(hunk.row_range.start)
1594 .take(hunk.row_range.end.0 as usize - hunk.row_range.start.0 as usize)
1595 .any(|row_info| matches!(row_info.diff_status, Some(DiffHunkStatus::Added(_))));
1596 let expanded = deleted_count > 0 || has_added;
1597 if deleted_count > 0 && has_added {
1598 display_hunks.push((
1599 DisplayDiffHunk::Unfolded {
1600 status: DiffHunkStatus::Removed(hunk.secondary_status),
1601 display_row_range: hunk_display_start.row()
1602 ..hunk_display_start.row() + DisplayRow(deleted_count as u32),
1603 multi_buffer_range: Anchor::range_in_buffer(
1604 hunk.excerpt_id,
1605 hunk.buffer_id,
1606 hunk.buffer_range.clone(),
1607 ),
1608 expanded,
1609 is_primary: true,
1610 },
1611 None,
1612 ));
1613 display_hunks.push((
1614 DisplayDiffHunk::Unfolded {
1615 status: DiffHunkStatus::Added(hunk.secondary_status),
1616 display_row_range: hunk_display_start.row()
1617 + DisplayRow(deleted_count as u32)
1618 ..end_row,
1619 multi_buffer_range: Anchor::range_in_buffer(
1620 hunk.excerpt_id,
1621 hunk.buffer_id,
1622 hunk.buffer_range,
1623 ),
1624 expanded,
1625 is_primary: false,
1626 },
1627 None,
1628 ));
1629 } else {
1630 let status = if expanded && matches!(hunk.status(), DiffHunkStatus::Modified(_))
1631 {
1632 if hunk_display_start.row() < hunk_deleted_to_added_break.row() {
1633 DiffHunkStatus::Removed(hunk.secondary_status)
1634 } else {
1635 DiffHunkStatus::Added(hunk.secondary_status)
1636 }
1637 } else {
1638 hunk.status()
1639 };
1640 display_hunks.push((
1641 DisplayDiffHunk::Unfolded {
1642 status,
1643 display_row_range: hunk_display_start.row()..end_row,
1644 multi_buffer_range: Anchor::range_in_buffer(
1645 hunk.excerpt_id,
1646 hunk.buffer_id,
1647 hunk.buffer_range,
1648 ),
1649 expanded,
1650 is_primary: true,
1651 },
1652 None,
1653 ));
1654 }
1655 };
1656 }
1657
1658 let git_gutter_setting = ProjectSettings::get_global(cx)
1659 .git
1660 .git_gutter
1661 .unwrap_or_default();
1662 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1663 for (hunk, hitbox) in &mut display_hunks {
1664 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1665 let hunk_bounds =
1666 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1667 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1668 }
1669 }
1670 }
1671
1672 display_hunks
1673 }
1674
1675 #[allow(clippy::too_many_arguments)]
1676 fn layout_inline_blame(
1677 &self,
1678 display_row: DisplayRow,
1679 row_info: &RowInfo,
1680 line_layout: &LineWithInvisibles,
1681 crease_trailer: Option<&CreaseTrailerLayout>,
1682 em_width: Pixels,
1683 content_origin: gpui::Point<Pixels>,
1684 scroll_pixel_position: gpui::Point<Pixels>,
1685 line_height: Pixels,
1686 window: &mut Window,
1687 cx: &mut App,
1688 ) -> Option<AnyElement> {
1689 if !self
1690 .editor
1691 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1692 {
1693 return None;
1694 }
1695
1696 let workspace = self
1697 .editor
1698 .read(cx)
1699 .workspace
1700 .as_ref()
1701 .map(|(w, _)| w.clone());
1702
1703 let editor = self.editor.read(cx);
1704 let blame = editor.blame.clone()?;
1705 let padding = {
1706 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1707 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1708
1709 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1710
1711 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1712 match &inline_completion.completion {
1713 InlineCompletion::Edit {
1714 display_mode: EditDisplayMode::TabAccept,
1715 ..
1716 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1717 _ => {}
1718 }
1719 }
1720
1721 padding * em_width
1722 };
1723
1724 let blame_entry = blame
1725 .update(cx, |blame, cx| {
1726 blame.blame_for_rows(&[*row_info], cx).next()
1727 })
1728 .flatten()?;
1729
1730 let mut element =
1731 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1732
1733 let start_y = content_origin.y
1734 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1735
1736 let start_x = {
1737 let line_end = if let Some(crease_trailer) = crease_trailer {
1738 crease_trailer.bounds.right()
1739 } else {
1740 content_origin.x - scroll_pixel_position.x + line_layout.width
1741 };
1742
1743 let padded_line_end = line_end + padding;
1744
1745 let min_column_in_pixels = ProjectSettings::get_global(cx)
1746 .git
1747 .inline_blame
1748 .and_then(|settings| settings.min_column)
1749 .map(|col| self.column_pixels(col as usize, window, cx))
1750 .unwrap_or(px(0.));
1751 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1752
1753 cmp::max(padded_line_end, min_start)
1754 };
1755
1756 let absolute_offset = point(start_x, start_y);
1757 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1758
1759 Some(element)
1760 }
1761
1762 #[allow(clippy::too_many_arguments)]
1763 fn layout_blame_entries(
1764 &self,
1765 buffer_rows: &[RowInfo],
1766 em_width: Pixels,
1767 scroll_position: gpui::Point<f32>,
1768 line_height: Pixels,
1769 gutter_hitbox: &Hitbox,
1770 max_width: Option<Pixels>,
1771 window: &mut Window,
1772 cx: &mut App,
1773 ) -> Option<Vec<AnyElement>> {
1774 if !self
1775 .editor
1776 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1777 {
1778 return None;
1779 }
1780
1781 let blame = self.editor.read(cx).blame.clone()?;
1782 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1783 blame.blame_for_rows(buffer_rows, cx).collect()
1784 });
1785
1786 let width = if let Some(max_width) = max_width {
1787 AvailableSpace::Definite(max_width)
1788 } else {
1789 AvailableSpace::MaxContent
1790 };
1791 let scroll_top = scroll_position.y * line_height;
1792 let start_x = em_width;
1793
1794 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1795
1796 let shaped_lines = blamed_rows
1797 .into_iter()
1798 .enumerate()
1799 .flat_map(|(ix, blame_entry)| {
1800 if let Some(blame_entry) = blame_entry {
1801 let mut element = render_blame_entry(
1802 ix,
1803 &blame,
1804 blame_entry,
1805 &self.style,
1806 &mut last_used_color,
1807 self.editor.clone(),
1808 cx,
1809 );
1810
1811 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1812 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1813
1814 element.prepaint_as_root(
1815 absolute_offset,
1816 size(width, AvailableSpace::MinContent),
1817 window,
1818 cx,
1819 );
1820
1821 Some(element)
1822 } else {
1823 None
1824 }
1825 })
1826 .collect();
1827
1828 Some(shaped_lines)
1829 }
1830
1831 #[allow(clippy::too_many_arguments)]
1832 fn layout_indent_guides(
1833 &self,
1834 content_origin: gpui::Point<Pixels>,
1835 text_origin: gpui::Point<Pixels>,
1836 visible_buffer_range: Range<MultiBufferRow>,
1837 scroll_pixel_position: gpui::Point<Pixels>,
1838 line_height: Pixels,
1839 snapshot: &DisplaySnapshot,
1840 window: &mut Window,
1841 cx: &mut App,
1842 ) -> Option<Vec<IndentGuideLayout>> {
1843 let indent_guides = self.editor.update(cx, |editor, cx| {
1844 editor.indent_guides(visible_buffer_range, snapshot, cx)
1845 })?;
1846
1847 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1848 editor
1849 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1850 .unwrap_or_default()
1851 });
1852
1853 Some(
1854 indent_guides
1855 .into_iter()
1856 .enumerate()
1857 .filter_map(|(i, indent_guide)| {
1858 let single_indent_width =
1859 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1860 let total_width = single_indent_width * indent_guide.depth as f32;
1861 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1862 if start_x >= text_origin.x {
1863 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1864 indent_guide.start_row..indent_guide.end_row,
1865 line_height,
1866 snapshot,
1867 );
1868
1869 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1870
1871 Some(IndentGuideLayout {
1872 origin: point(start_x, start_y),
1873 length,
1874 single_indent_width,
1875 depth: indent_guide.depth,
1876 active: active_indent_guide_indices.contains(&i),
1877 settings: indent_guide.settings,
1878 })
1879 } else {
1880 None
1881 }
1882 })
1883 .collect(),
1884 )
1885 }
1886
1887 fn calculate_indent_guide_bounds(
1888 row_range: Range<MultiBufferRow>,
1889 line_height: Pixels,
1890 snapshot: &DisplaySnapshot,
1891 ) -> (gpui::Pixels, gpui::Pixels) {
1892 let start_point = Point::new(row_range.start.0, 0);
1893 let end_point = Point::new(row_range.end.0, 0);
1894
1895 let row_range = start_point.to_display_point(snapshot).row()
1896 ..end_point.to_display_point(snapshot).row();
1897
1898 let mut prev_line = start_point;
1899 prev_line.row = prev_line.row.saturating_sub(1);
1900 let prev_line = prev_line.to_display_point(snapshot).row();
1901
1902 let mut cons_line = end_point;
1903 cons_line.row += 1;
1904 let cons_line = cons_line.to_display_point(snapshot).row();
1905
1906 let mut offset_y = row_range.start.0 as f32 * line_height;
1907 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1908
1909 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1910 if row_range.end == cons_line {
1911 length += line_height;
1912 }
1913
1914 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1915 // we want to extend the indent guide to the start of the block.
1916 let mut block_height = 0;
1917 let mut block_offset = 0;
1918 let mut found_excerpt_header = false;
1919 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1920 if matches!(block, Block::ExcerptBoundary { .. }) {
1921 found_excerpt_header = true;
1922 break;
1923 }
1924 block_offset += block.height();
1925 block_height += block.height();
1926 }
1927 if !found_excerpt_header {
1928 offset_y -= block_offset as f32 * line_height;
1929 length += block_height as f32 * line_height;
1930 }
1931
1932 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1933 // we want to ensure that the indent guide stops before the excerpt header.
1934 let mut block_height = 0;
1935 let mut found_excerpt_header = false;
1936 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1937 if matches!(block, Block::ExcerptBoundary { .. }) {
1938 found_excerpt_header = true;
1939 }
1940 block_height += block.height();
1941 }
1942 if found_excerpt_header {
1943 length -= block_height as f32 * line_height;
1944 }
1945
1946 (offset_y, length)
1947 }
1948
1949 #[allow(clippy::too_many_arguments)]
1950 fn layout_run_indicators(
1951 &self,
1952 line_height: Pixels,
1953 range: Range<DisplayRow>,
1954 scroll_pixel_position: gpui::Point<Pixels>,
1955 gutter_dimensions: &GutterDimensions,
1956 gutter_hitbox: &Hitbox,
1957 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1958 snapshot: &EditorSnapshot,
1959 window: &mut Window,
1960 cx: &mut App,
1961 ) -> Vec<AnyElement> {
1962 self.editor.update(cx, |editor, cx| {
1963 let active_task_indicator_row =
1964 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1965 deployed_from_indicator,
1966 actions,
1967 ..
1968 })) = editor.context_menu.borrow().as_ref()
1969 {
1970 actions
1971 .tasks
1972 .as_ref()
1973 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1974 .or(*deployed_from_indicator)
1975 } else {
1976 None
1977 };
1978
1979 let offset_range_start = snapshot
1980 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1981 .to_offset(&snapshot.buffer_snapshot);
1982 let offset_range_end = snapshot
1983 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1984 .to_offset(&snapshot.buffer_snapshot);
1985
1986 editor
1987 .tasks
1988 .iter()
1989 .filter_map(|(_, tasks)| {
1990 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1991 return None;
1992 }
1993 let multibuffer_point =
1994 multi_buffer::ToPoint::to_point(&tasks.offset.0, &snapshot.buffer_snapshot);
1995 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1996 let buffer_folded = snapshot
1997 .buffer_snapshot
1998 .buffer_line_for_row(multibuffer_row)
1999 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2000 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2001 .unwrap_or(false);
2002 if buffer_folded {
2003 return None;
2004 }
2005
2006 if snapshot.is_line_folded(multibuffer_row) {
2007 // Skip folded indicators, unless it's the starting line of a fold.
2008 if multibuffer_row
2009 .0
2010 .checked_sub(1)
2011 .map_or(false, |previous_row| {
2012 snapshot.is_line_folded(MultiBufferRow(previous_row))
2013 })
2014 {
2015 return None;
2016 }
2017 }
2018 let display_row = multibuffer_point.to_display_point(snapshot).row();
2019 let button = editor.render_run_indicator(
2020 &self.style,
2021 Some(display_row) == active_task_indicator_row,
2022 display_row,
2023 cx,
2024 );
2025
2026 let button = prepaint_gutter_button(
2027 button,
2028 display_row,
2029 line_height,
2030 gutter_dimensions,
2031 scroll_pixel_position,
2032 gutter_hitbox,
2033 rows_with_hunk_bounds,
2034 window,
2035 cx,
2036 );
2037 Some(button)
2038 })
2039 .collect_vec()
2040 })
2041 }
2042
2043 #[allow(clippy::too_many_arguments)]
2044 fn layout_code_actions_indicator(
2045 &self,
2046 line_height: Pixels,
2047 newest_selection_head: DisplayPoint,
2048 scroll_pixel_position: gpui::Point<Pixels>,
2049 gutter_dimensions: &GutterDimensions,
2050 gutter_hitbox: &Hitbox,
2051 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2052 window: &mut Window,
2053 cx: &mut App,
2054 ) -> Option<AnyElement> {
2055 let mut active = false;
2056 let mut button = None;
2057 let row = newest_selection_head.row();
2058 self.editor.update(cx, |editor, cx| {
2059 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2060 deployed_from_indicator,
2061 ..
2062 })) = editor.context_menu.borrow().as_ref()
2063 {
2064 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2065 };
2066 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2067 });
2068
2069 let button = prepaint_gutter_button(
2070 button?,
2071 row,
2072 line_height,
2073 gutter_dimensions,
2074 scroll_pixel_position,
2075 gutter_hitbox,
2076 rows_with_hunk_bounds,
2077 window,
2078 cx,
2079 );
2080
2081 Some(button)
2082 }
2083
2084 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2085 if let Some(index) = participant_index {
2086 cx.theme().players().color_for_participant(index.0)
2087 } else {
2088 cx.theme().players().absent()
2089 }
2090 }
2091
2092 fn calculate_relative_line_numbers(
2093 &self,
2094 snapshot: &EditorSnapshot,
2095 rows: &Range<DisplayRow>,
2096 relative_to: Option<DisplayRow>,
2097 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2098 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2099 let Some(relative_to) = relative_to else {
2100 return relative_rows;
2101 };
2102
2103 let start = rows.start.min(relative_to);
2104 let end = rows.end.max(relative_to);
2105
2106 let buffer_rows = snapshot
2107 .row_infos(start)
2108 .take(1 + end.minus(start) as usize)
2109 .collect::<Vec<_>>();
2110
2111 let head_idx = relative_to.minus(start);
2112 let mut delta = 1;
2113 let mut i = head_idx + 1;
2114 while i < buffer_rows.len() as u32 {
2115 if buffer_rows[i as usize].buffer_row.is_some() {
2116 if rows.contains(&DisplayRow(i + start.0)) {
2117 relative_rows.insert(DisplayRow(i + start.0), delta);
2118 }
2119 delta += 1;
2120 }
2121 i += 1;
2122 }
2123 delta = 1;
2124 i = head_idx.min(buffer_rows.len() as u32 - 1);
2125 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2126 i -= 1;
2127 }
2128
2129 while i > 0 {
2130 i -= 1;
2131 if buffer_rows[i as usize].buffer_row.is_some() {
2132 if rows.contains(&DisplayRow(i + start.0)) {
2133 relative_rows.insert(DisplayRow(i + start.0), delta);
2134 }
2135 delta += 1;
2136 }
2137 }
2138
2139 relative_rows
2140 }
2141
2142 #[allow(clippy::too_many_arguments)]
2143 fn layout_line_numbers(
2144 &self,
2145 gutter_hitbox: Option<&Hitbox>,
2146 gutter_dimensions: GutterDimensions,
2147 line_height: Pixels,
2148 scroll_position: gpui::Point<f32>,
2149 rows: Range<DisplayRow>,
2150 buffer_rows: &[RowInfo],
2151 newest_selection_head: Option<DisplayPoint>,
2152 snapshot: &EditorSnapshot,
2153 window: &mut Window,
2154 cx: &mut App,
2155 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2156 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2157 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2158 });
2159 if !include_line_numbers {
2160 return Arc::default();
2161 }
2162
2163 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2164 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2165 let newest = editor.selections.newest::<Point>(cx);
2166 SelectionLayout::new(
2167 newest,
2168 editor.selections.line_mode,
2169 editor.cursor_shape,
2170 &snapshot.display_snapshot,
2171 true,
2172 true,
2173 None,
2174 )
2175 .head
2176 });
2177 let is_relative = editor.should_use_relative_line_numbers(cx);
2178 (newest_selection_head, is_relative)
2179 });
2180
2181 let relative_to = if is_relative {
2182 Some(newest_selection_head.row())
2183 } else {
2184 None
2185 };
2186 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2187 let mut line_number = String::new();
2188 let line_numbers = buffer_rows
2189 .into_iter()
2190 .enumerate()
2191 .flat_map(|(ix, row_info)| {
2192 let display_row = DisplayRow(rows.start.0 + ix as u32);
2193 line_number.clear();
2194 let non_relative_number = row_info.buffer_row? + 1;
2195 let number = relative_rows
2196 .get(&display_row)
2197 .unwrap_or(&non_relative_number);
2198 write!(&mut line_number, "{number}").unwrap();
2199 if matches!(row_info.diff_status, Some(DiffHunkStatus::Removed(_))) {
2200 return None;
2201 }
2202
2203 let color = cx.theme().colors().editor_line_number;
2204 let shaped_line = self
2205 .shape_line_number(SharedString::from(&line_number), color, window)
2206 .log_err()?;
2207 let scroll_top = scroll_position.y * line_height;
2208 let line_origin = gutter_hitbox.map(|hitbox| {
2209 hitbox.origin
2210 + point(
2211 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2212 ix as f32 * line_height - (scroll_top % line_height),
2213 )
2214 });
2215
2216 #[cfg(not(test))]
2217 let hitbox = line_origin.map(|line_origin| {
2218 window.insert_hitbox(
2219 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2220 false,
2221 )
2222 });
2223 #[cfg(test)]
2224 let hitbox = {
2225 let _ = line_origin;
2226 None
2227 };
2228
2229 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2230 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2231 let line_number = LineNumberLayout {
2232 shaped_line,
2233 hitbox,
2234 display_row,
2235 };
2236 Some((multi_buffer_row, line_number))
2237 })
2238 .collect();
2239 Arc::new(line_numbers)
2240 }
2241
2242 fn layout_crease_toggles(
2243 &self,
2244 rows: Range<DisplayRow>,
2245 row_infos: &[RowInfo],
2246 active_rows: &BTreeMap<DisplayRow, bool>,
2247 snapshot: &EditorSnapshot,
2248 window: &mut Window,
2249 cx: &mut App,
2250 ) -> Vec<Option<AnyElement>> {
2251 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2252 && snapshot.mode == EditorMode::Full
2253 && self.editor.read(cx).is_singleton(cx);
2254 if include_fold_statuses {
2255 row_infos
2256 .into_iter()
2257 .enumerate()
2258 .map(|(ix, info)| {
2259 let row = info.multibuffer_row?;
2260 let display_row = DisplayRow(rows.start.0 + ix as u32);
2261 let active = active_rows.contains_key(&display_row);
2262
2263 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2264 })
2265 .collect()
2266 } else {
2267 Vec::new()
2268 }
2269 }
2270
2271 fn layout_crease_trailers(
2272 &self,
2273 buffer_rows: impl IntoIterator<Item = RowInfo>,
2274 snapshot: &EditorSnapshot,
2275 window: &mut Window,
2276 cx: &mut App,
2277 ) -> Vec<Option<AnyElement>> {
2278 buffer_rows
2279 .into_iter()
2280 .map(|row_info| {
2281 if let Some(row) = row_info.multibuffer_row {
2282 snapshot.render_crease_trailer(row, window, cx)
2283 } else {
2284 None
2285 }
2286 })
2287 .collect()
2288 }
2289
2290 fn layout_lines(
2291 rows: Range<DisplayRow>,
2292 snapshot: &EditorSnapshot,
2293 style: &EditorStyle,
2294 editor_width: Pixels,
2295 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2296 window: &mut Window,
2297 cx: &mut App,
2298 ) -> Vec<LineWithInvisibles> {
2299 if rows.start >= rows.end {
2300 return Vec::new();
2301 }
2302
2303 // Show the placeholder when the editor is empty
2304 if snapshot.is_empty() {
2305 let font_size = style.text.font_size.to_pixels(window.rem_size());
2306 let placeholder_color = cx.theme().colors().text_placeholder;
2307 let placeholder_text = snapshot.placeholder_text();
2308
2309 let placeholder_lines = placeholder_text
2310 .as_ref()
2311 .map_or("", AsRef::as_ref)
2312 .split('\n')
2313 .skip(rows.start.0 as usize)
2314 .chain(iter::repeat(""))
2315 .take(rows.len());
2316 placeholder_lines
2317 .filter_map(move |line| {
2318 let run = TextRun {
2319 len: line.len(),
2320 font: style.text.font(),
2321 color: placeholder_color,
2322 background_color: None,
2323 underline: Default::default(),
2324 strikethrough: None,
2325 };
2326 window
2327 .text_system()
2328 .shape_line(line.to_string().into(), font_size, &[run])
2329 .log_err()
2330 })
2331 .map(|line| LineWithInvisibles {
2332 width: line.width,
2333 len: line.len,
2334 fragments: smallvec![LineFragment::Text(line)],
2335 invisibles: Vec::new(),
2336 font_size,
2337 })
2338 .collect()
2339 } else {
2340 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2341 LineWithInvisibles::from_chunks(
2342 chunks,
2343 &style,
2344 MAX_LINE_LEN,
2345 rows.len(),
2346 snapshot.mode,
2347 editor_width,
2348 is_row_soft_wrapped,
2349 window,
2350 cx,
2351 )
2352 }
2353 }
2354
2355 #[allow(clippy::too_many_arguments)]
2356 fn prepaint_lines(
2357 &self,
2358 start_row: DisplayRow,
2359 line_layouts: &mut [LineWithInvisibles],
2360 line_height: Pixels,
2361 scroll_pixel_position: gpui::Point<Pixels>,
2362 content_origin: gpui::Point<Pixels>,
2363 window: &mut Window,
2364 cx: &mut App,
2365 ) -> SmallVec<[AnyElement; 1]> {
2366 let mut line_elements = SmallVec::new();
2367 for (ix, line) in line_layouts.iter_mut().enumerate() {
2368 let row = start_row + DisplayRow(ix as u32);
2369 line.prepaint(
2370 line_height,
2371 scroll_pixel_position,
2372 row,
2373 content_origin,
2374 &mut line_elements,
2375 window,
2376 cx,
2377 );
2378 }
2379 line_elements
2380 }
2381
2382 #[allow(clippy::too_many_arguments)]
2383 fn render_block(
2384 &self,
2385 block: &Block,
2386 available_width: AvailableSpace,
2387 block_id: BlockId,
2388 block_row_start: DisplayRow,
2389 snapshot: &EditorSnapshot,
2390 text_x: Pixels,
2391 rows: &Range<DisplayRow>,
2392 line_layouts: &[LineWithInvisibles],
2393 gutter_dimensions: &GutterDimensions,
2394 line_height: Pixels,
2395 em_width: Pixels,
2396 text_hitbox: &Hitbox,
2397 editor_width: Pixels,
2398 scroll_width: &mut Pixels,
2399 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2400 selections: &[Selection<Point>],
2401 selected_buffer_ids: &Vec<BufferId>,
2402 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2403 sticky_header_excerpt_id: Option<ExcerptId>,
2404 window: &mut Window,
2405 cx: &mut App,
2406 ) -> (AnyElement, Size<Pixels>) {
2407 let mut element = match block {
2408 Block::Custom(block) => {
2409 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2410 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2411 let align_to = block_start.to_display_point(snapshot);
2412 let anchor_x = text_x
2413 + if rows.contains(&align_to.row()) {
2414 line_layouts[align_to.row().minus(rows.start) as usize]
2415 .x_for_index(align_to.column() as usize)
2416 } else {
2417 layout_line(
2418 align_to.row(),
2419 snapshot,
2420 &self.style,
2421 editor_width,
2422 is_row_soft_wrapped,
2423 window,
2424 cx,
2425 )
2426 .x_for_index(align_to.column() as usize)
2427 };
2428
2429 let selected = selections
2430 .binary_search_by(|selection| {
2431 if selection.end <= block_start {
2432 Ordering::Less
2433 } else if selection.start >= block_end {
2434 Ordering::Greater
2435 } else {
2436 Ordering::Equal
2437 }
2438 })
2439 .is_ok();
2440
2441 div()
2442 .size_full()
2443 .child(block.render(&mut BlockContext {
2444 window,
2445 app: cx,
2446 anchor_x,
2447 gutter_dimensions,
2448 line_height,
2449 em_width,
2450 block_id,
2451 selected,
2452 max_width: text_hitbox.size.width.max(*scroll_width),
2453 editor_style: &self.style,
2454 }))
2455 .into_any()
2456 }
2457
2458 Block::FoldedBuffer {
2459 first_excerpt,
2460 prev_excerpt,
2461 show_excerpt_controls,
2462 height,
2463 } => {
2464 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2465 let mut result = v_flex().id(block_id).w_full();
2466
2467 if let Some(prev_excerpt) = prev_excerpt {
2468 if *show_excerpt_controls {
2469 result = result.child(self.render_expand_excerpt_control(
2470 block_id,
2471 ExpandExcerptDirection::Down,
2472 prev_excerpt.id,
2473 gutter_dimensions,
2474 window,
2475 cx,
2476 ));
2477 }
2478 }
2479
2480 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2481 result
2482 .child(self.render_buffer_header(
2483 first_excerpt,
2484 true,
2485 selected,
2486 jump_data,
2487 window,
2488 cx,
2489 ))
2490 .into_any_element()
2491 }
2492
2493 Block::ExcerptBoundary {
2494 prev_excerpt,
2495 next_excerpt,
2496 show_excerpt_controls,
2497 height,
2498 starts_new_buffer,
2499 } => {
2500 let color = cx.theme().colors().clone();
2501 let mut result = v_flex().id(block_id).w_full();
2502
2503 if let Some(prev_excerpt) = prev_excerpt {
2504 if *show_excerpt_controls {
2505 result = result.child(self.render_expand_excerpt_control(
2506 block_id,
2507 ExpandExcerptDirection::Down,
2508 prev_excerpt.id,
2509 gutter_dimensions,
2510 window,
2511 cx,
2512 ));
2513 }
2514 }
2515
2516 if let Some(next_excerpt) = next_excerpt {
2517 let jump_data =
2518 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2519
2520 if *starts_new_buffer {
2521 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2522 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2523
2524 result = result.child(self.render_buffer_header(
2525 next_excerpt,
2526 false,
2527 selected,
2528 jump_data,
2529 window,
2530 cx,
2531 ));
2532 } else {
2533 result = result
2534 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2535 }
2536
2537 if *show_excerpt_controls {
2538 result = result.child(self.render_expand_excerpt_control(
2539 block_id,
2540 ExpandExcerptDirection::Up,
2541 next_excerpt.id,
2542 gutter_dimensions,
2543 window,
2544 cx,
2545 ));
2546 }
2547 } else {
2548 if *show_excerpt_controls {
2549 result = result.child(
2550 h_flex()
2551 .relative()
2552 .child(
2553 div()
2554 .top(px(0.))
2555 .absolute()
2556 .w_full()
2557 .h_px()
2558 .bg(color.border_variant),
2559 )
2560 .child(self.render_expand_excerpt_control(
2561 block_id,
2562 ExpandExcerptDirection::Up,
2563 next_excerpt.id,
2564 gutter_dimensions,
2565 window,
2566 cx,
2567 )),
2568 );
2569 }
2570 };
2571 }
2572
2573 result.into_any()
2574 }
2575 };
2576
2577 // Discover the element's content height, then round up to the nearest multiple of line height.
2578 let preliminary_size = element.layout_as_root(
2579 size(available_width, AvailableSpace::MinContent),
2580 window,
2581 cx,
2582 );
2583 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2584 let final_size = if preliminary_size.height == quantized_height {
2585 preliminary_size
2586 } else {
2587 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2588 };
2589
2590 if let BlockId::Custom(custom_block_id) = block_id {
2591 if block.height() > 0 {
2592 let element_height_in_lines =
2593 ((final_size.height / line_height).ceil() as u32).max(1);
2594 if element_height_in_lines != block.height() {
2595 resized_blocks.insert(custom_block_id, element_height_in_lines);
2596 }
2597 }
2598 }
2599
2600 (element, final_size)
2601 }
2602
2603 fn render_buffer_header(
2604 &self,
2605 for_excerpt: &ExcerptInfo,
2606 is_folded: bool,
2607 is_selected: bool,
2608 jump_data: JumpData,
2609 window: &mut Window,
2610 cx: &mut App,
2611 ) -> Div {
2612 let include_root = self
2613 .editor
2614 .read(cx)
2615 .project
2616 .as_ref()
2617 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2618 .unwrap_or_default();
2619 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2620 let filename = path
2621 .as_ref()
2622 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2623 let parent_path = path.as_ref().and_then(|path| {
2624 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2625 });
2626 let focus_handle = self.editor.focus_handle(cx);
2627 let colors = cx.theme().colors();
2628
2629 div()
2630 .px_2()
2631 .pt_2()
2632 .w_full()
2633 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2634 .child(
2635 h_flex()
2636 .size_full()
2637 .gap_2()
2638 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2639 .pl_0p5()
2640 .pr_5()
2641 .rounded_md()
2642 .shadow_md()
2643 .border_1()
2644 .map(|div| {
2645 let border_color = if is_selected && is_folded {
2646 colors.border_focused
2647 } else {
2648 colors.border
2649 };
2650 div.border_color(border_color)
2651 })
2652 .bg(colors.editor_subheader_background)
2653 .hover(|style| style.bg(colors.element_hover))
2654 .map(|header| {
2655 let editor = self.editor.clone();
2656 let buffer_id = for_excerpt.buffer_id;
2657 let toggle_chevron_icon =
2658 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2659 header.child(
2660 div()
2661 .hover(|style| style.bg(colors.element_selected))
2662 .rounded_sm()
2663 .child(
2664 ButtonLike::new("toggle-buffer-fold")
2665 .style(ui::ButtonStyle::Transparent)
2666 .size(ButtonSize::Large)
2667 .width(px(30.).into())
2668 .children(toggle_chevron_icon)
2669 .tooltip({
2670 let focus_handle = focus_handle.clone();
2671 move |window, cx| {
2672 Tooltip::for_action_in(
2673 "Toggle Excerpt Fold",
2674 &ToggleFold,
2675 &focus_handle,
2676 window,
2677 cx,
2678 )
2679 }
2680 })
2681 .on_click(move |_, _, cx| {
2682 if is_folded {
2683 editor.update(cx, |editor, cx| {
2684 editor.unfold_buffer(buffer_id, cx);
2685 });
2686 } else {
2687 editor.update(cx, |editor, cx| {
2688 editor.fold_buffer(buffer_id, cx);
2689 });
2690 }
2691 }),
2692 ),
2693 )
2694 })
2695 .children(
2696 self.editor
2697 .read(cx)
2698 .addons
2699 .values()
2700 .filter_map(|addon| {
2701 addon.render_buffer_header_controls(for_excerpt, window, cx)
2702 })
2703 .take(1),
2704 )
2705 .child(
2706 h_flex()
2707 .cursor_pointer()
2708 .id("path header block")
2709 .size_full()
2710 .justify_between()
2711 .child(
2712 h_flex()
2713 .gap_2()
2714 .child(
2715 filename
2716 .map(SharedString::from)
2717 .unwrap_or_else(|| "untitled".into()),
2718 )
2719 .when_some(parent_path, |then, path| {
2720 then.child(div().child(path).text_color(colors.text_muted))
2721 }),
2722 )
2723 .when(is_selected, |el| {
2724 el.child(
2725 h_flex()
2726 .id("jump-to-file-button")
2727 .gap_2p5()
2728 .child(Label::new("Jump To File"))
2729 .children(
2730 KeyBinding::for_action_in(
2731 &OpenExcerpts,
2732 &focus_handle,
2733 window,
2734 cx,
2735 )
2736 .map(|binding| binding.into_any_element()),
2737 ),
2738 )
2739 })
2740 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2741 .on_click(window.listener_for(&self.editor, {
2742 move |editor, e: &ClickEvent, window, cx| {
2743 editor.open_excerpts_common(
2744 Some(jump_data.clone()),
2745 e.down.modifiers.secondary(),
2746 window,
2747 cx,
2748 );
2749 }
2750 })),
2751 ),
2752 )
2753 }
2754
2755 fn render_expand_excerpt_control(
2756 &self,
2757 block_id: BlockId,
2758 direction: ExpandExcerptDirection,
2759 excerpt_id: ExcerptId,
2760 gutter_dimensions: &GutterDimensions,
2761 window: &Window,
2762 cx: &mut App,
2763 ) -> impl IntoElement {
2764 let color = cx.theme().colors().clone();
2765 let hover_color = color.border_variant.opacity(0.5);
2766 let focus_handle = self.editor.focus_handle(cx).clone();
2767
2768 let icon_offset =
2769 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2770 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2771 let group_name = if direction == ExpandExcerptDirection::Down {
2772 "expand-down"
2773 } else {
2774 "expand-up"
2775 };
2776
2777 let expand_area = |id: SharedString| {
2778 h_flex()
2779 .id(id)
2780 .w_full()
2781 .cursor_pointer()
2782 .block_mouse_down()
2783 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2784 .hover(|style| style.bg(hover_color))
2785 .tooltip({
2786 let focus_handle = focus_handle.clone();
2787 move |window, cx| {
2788 Tooltip::for_action_in(
2789 "Expand Excerpt",
2790 &ExpandExcerpts { lines: 0 },
2791 &focus_handle,
2792 window,
2793 cx,
2794 )
2795 }
2796 })
2797 };
2798
2799 expand_area(
2800 format!(
2801 "block-{}-{}",
2802 block_id,
2803 if direction == ExpandExcerptDirection::Down {
2804 "down"
2805 } else {
2806 "up"
2807 }
2808 )
2809 .into(),
2810 )
2811 .group(group_name)
2812 .child(
2813 h_flex()
2814 .w(icon_offset)
2815 .h(header_height)
2816 .flex_none()
2817 .justify_end()
2818 .child(
2819 ButtonLike::new("expand-icon")
2820 .style(ButtonStyle::Transparent)
2821 .child(
2822 svg()
2823 .path(if direction == ExpandExcerptDirection::Down {
2824 IconName::ArrowDownFromLine.path()
2825 } else {
2826 IconName::ArrowUpFromLine.path()
2827 })
2828 .size(IconSize::XSmall.rems())
2829 .text_color(cx.theme().colors().editor_line_number)
2830 .group_hover(group_name, |style| {
2831 style.text_color(cx.theme().colors().editor_active_line_number)
2832 }),
2833 ),
2834 ),
2835 )
2836 .on_click(window.listener_for(&self.editor, {
2837 move |editor, _, _, cx| {
2838 editor.expand_excerpt(excerpt_id, direction, cx);
2839 cx.stop_propagation();
2840 }
2841 }))
2842 }
2843
2844 #[allow(clippy::too_many_arguments)]
2845 fn render_blocks(
2846 &self,
2847 rows: Range<DisplayRow>,
2848 snapshot: &EditorSnapshot,
2849 hitbox: &Hitbox,
2850 text_hitbox: &Hitbox,
2851 editor_width: Pixels,
2852 scroll_width: &mut Pixels,
2853 gutter_dimensions: &GutterDimensions,
2854 em_width: Pixels,
2855 text_x: Pixels,
2856 line_height: Pixels,
2857 line_layouts: &[LineWithInvisibles],
2858 selections: &[Selection<Point>],
2859 selected_buffer_ids: &Vec<BufferId>,
2860 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2861 sticky_header_excerpt_id: Option<ExcerptId>,
2862 window: &mut Window,
2863 cx: &mut App,
2864 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2865 let (fixed_blocks, non_fixed_blocks) = snapshot
2866 .blocks_in_range(rows.clone())
2867 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2868
2869 let mut focused_block = self
2870 .editor
2871 .update(cx, |editor, _| editor.take_focused_block());
2872 let mut fixed_block_max_width = Pixels::ZERO;
2873 let mut blocks = Vec::new();
2874 let mut resized_blocks = HashMap::default();
2875
2876 for (row, block) in fixed_blocks {
2877 let block_id = block.id();
2878
2879 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2880 focused_block = None;
2881 }
2882
2883 let (element, element_size) = self.render_block(
2884 block,
2885 AvailableSpace::MinContent,
2886 block_id,
2887 row,
2888 snapshot,
2889 text_x,
2890 &rows,
2891 line_layouts,
2892 gutter_dimensions,
2893 line_height,
2894 em_width,
2895 text_hitbox,
2896 editor_width,
2897 scroll_width,
2898 &mut resized_blocks,
2899 selections,
2900 selected_buffer_ids,
2901 is_row_soft_wrapped,
2902 sticky_header_excerpt_id,
2903 window,
2904 cx,
2905 );
2906 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2907 blocks.push(BlockLayout {
2908 id: block_id,
2909 row: Some(row),
2910 element,
2911 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2912 style: BlockStyle::Fixed,
2913 });
2914 }
2915
2916 for (row, block) in non_fixed_blocks {
2917 let style = block.style();
2918 let width = match style {
2919 BlockStyle::Sticky => hitbox.size.width,
2920 BlockStyle::Flex => hitbox
2921 .size
2922 .width
2923 .max(fixed_block_max_width)
2924 .max(gutter_dimensions.width + *scroll_width),
2925 BlockStyle::Fixed => unreachable!(),
2926 };
2927 let block_id = block.id();
2928
2929 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2930 focused_block = None;
2931 }
2932
2933 let (element, element_size) = self.render_block(
2934 block,
2935 width.into(),
2936 block_id,
2937 row,
2938 snapshot,
2939 text_x,
2940 &rows,
2941 line_layouts,
2942 gutter_dimensions,
2943 line_height,
2944 em_width,
2945 text_hitbox,
2946 editor_width,
2947 scroll_width,
2948 &mut resized_blocks,
2949 selections,
2950 selected_buffer_ids,
2951 is_row_soft_wrapped,
2952 sticky_header_excerpt_id,
2953 window,
2954 cx,
2955 );
2956
2957 blocks.push(BlockLayout {
2958 id: block_id,
2959 row: Some(row),
2960 element,
2961 available_space: size(width.into(), element_size.height.into()),
2962 style,
2963 });
2964 }
2965
2966 if let Some(focused_block) = focused_block {
2967 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2968 if focus_handle.is_focused(window) {
2969 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2970 let style = block.style();
2971 let width = match style {
2972 BlockStyle::Fixed => AvailableSpace::MinContent,
2973 BlockStyle::Flex => AvailableSpace::Definite(
2974 hitbox
2975 .size
2976 .width
2977 .max(fixed_block_max_width)
2978 .max(gutter_dimensions.width + *scroll_width),
2979 ),
2980 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2981 };
2982
2983 let (element, element_size) = self.render_block(
2984 &block,
2985 width,
2986 focused_block.id,
2987 rows.end,
2988 snapshot,
2989 text_x,
2990 &rows,
2991 line_layouts,
2992 gutter_dimensions,
2993 line_height,
2994 em_width,
2995 text_hitbox,
2996 editor_width,
2997 scroll_width,
2998 &mut resized_blocks,
2999 selections,
3000 selected_buffer_ids,
3001 is_row_soft_wrapped,
3002 sticky_header_excerpt_id,
3003 window,
3004 cx,
3005 );
3006
3007 blocks.push(BlockLayout {
3008 id: block.id(),
3009 row: None,
3010 element,
3011 available_space: size(width, element_size.height.into()),
3012 style,
3013 });
3014 }
3015 }
3016 }
3017 }
3018
3019 if resized_blocks.is_empty() {
3020 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3021 Ok(blocks)
3022 } else {
3023 Err(resized_blocks)
3024 }
3025 }
3026
3027 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3028 /// a restart of rendering for the editor based on the new sizes.
3029 #[allow(clippy::too_many_arguments)]
3030 fn layout_blocks(
3031 &self,
3032 blocks: &mut Vec<BlockLayout>,
3033 block_starts: &mut HashSet<DisplayRow>,
3034 hitbox: &Hitbox,
3035 line_height: Pixels,
3036 scroll_pixel_position: gpui::Point<Pixels>,
3037 window: &mut Window,
3038 cx: &mut App,
3039 ) {
3040 for block in blocks {
3041 let mut origin = if let Some(row) = block.row {
3042 block_starts.insert(row);
3043 hitbox.origin
3044 + point(
3045 Pixels::ZERO,
3046 row.as_f32() * line_height - scroll_pixel_position.y,
3047 )
3048 } else {
3049 // Position the block outside the visible area
3050 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3051 };
3052
3053 if !matches!(block.style, BlockStyle::Sticky) {
3054 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3055 }
3056
3057 let focus_handle =
3058 block
3059 .element
3060 .prepaint_as_root(origin, block.available_space, window, cx);
3061
3062 if let Some(focus_handle) = focus_handle {
3063 self.editor.update(cx, |editor, _cx| {
3064 editor.set_focused_block(FocusedBlock {
3065 id: block.id,
3066 focus_handle: focus_handle.downgrade(),
3067 });
3068 });
3069 }
3070 }
3071 }
3072
3073 #[allow(clippy::too_many_arguments)]
3074 fn layout_sticky_buffer_header(
3075 &self,
3076 StickyHeaderExcerpt {
3077 excerpt,
3078 next_excerpt_controls_present,
3079 next_buffer_row,
3080 }: StickyHeaderExcerpt<'_>,
3081 scroll_position: f32,
3082 line_height: Pixels,
3083 snapshot: &EditorSnapshot,
3084 hitbox: &Hitbox,
3085 selected_buffer_ids: &Vec<BufferId>,
3086 window: &mut Window,
3087 cx: &mut App,
3088 ) -> AnyElement {
3089 let jump_data = header_jump_data(
3090 snapshot,
3091 DisplayRow(scroll_position as u32),
3092 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3093 excerpt,
3094 );
3095
3096 let editor_bg_color = cx.theme().colors().editor_background;
3097
3098 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3099
3100 let mut header = v_flex()
3101 .relative()
3102 .child(
3103 div()
3104 .w(hitbox.bounds.size.width)
3105 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3106 .bg(linear_gradient(
3107 0.,
3108 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3109 linear_color_stop(editor_bg_color, 0.6),
3110 ))
3111 .absolute()
3112 .top_0(),
3113 )
3114 .child(
3115 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3116 .into_any_element(),
3117 )
3118 .into_any_element();
3119
3120 let mut origin = hitbox.origin;
3121
3122 if let Some(next_buffer_row) = next_buffer_row {
3123 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3124
3125 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3126
3127 if next_excerpt_controls_present {
3128 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3129 }
3130
3131 let offset = scroll_position - max_row as f32;
3132
3133 if offset > 0.0 {
3134 origin.y -= Pixels(offset) * line_height;
3135 }
3136 }
3137
3138 let size = size(
3139 AvailableSpace::Definite(hitbox.size.width),
3140 AvailableSpace::MinContent,
3141 );
3142
3143 header.prepaint_as_root(origin, size, window, cx);
3144
3145 header
3146 }
3147
3148 #[allow(clippy::too_many_arguments)]
3149 fn layout_cursor_popovers(
3150 &self,
3151 line_height: Pixels,
3152 text_hitbox: &Hitbox,
3153 content_origin: gpui::Point<Pixels>,
3154 start_row: DisplayRow,
3155 scroll_pixel_position: gpui::Point<Pixels>,
3156 line_layouts: &[LineWithInvisibles],
3157 cursor: DisplayPoint,
3158 cursor_point: Point,
3159 style: &EditorStyle,
3160 window: &mut Window,
3161 cx: &mut App,
3162 ) {
3163 let mut min_menu_height = Pixels::ZERO;
3164 let mut max_menu_height = Pixels::ZERO;
3165 let mut height_above_menu = Pixels::ZERO;
3166 let height_below_menu = Pixels::ZERO;
3167 let mut edit_prediction_popover_visible = false;
3168 let mut context_menu_visible = false;
3169
3170 {
3171 let editor = self.editor.read(cx);
3172 if editor
3173 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3174 {
3175 height_above_menu +=
3176 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3177 edit_prediction_popover_visible = true;
3178 }
3179
3180 if editor.context_menu_visible() {
3181 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3182 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3183 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3184 context_menu_visible = true;
3185 }
3186 }
3187 }
3188
3189 let visible = edit_prediction_popover_visible || context_menu_visible;
3190 if !visible {
3191 return;
3192 }
3193
3194 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3195 let target_position = content_origin
3196 + gpui::Point {
3197 x: cmp::max(
3198 px(0.),
3199 cursor_row_layout.x_for_index(cursor.column() as usize)
3200 - scroll_pixel_position.x,
3201 ),
3202 y: cmp::max(
3203 px(0.),
3204 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3205 ),
3206 };
3207
3208 let viewport_bounds =
3209 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3210 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3211 ..Default::default()
3212 });
3213
3214 let min_height = height_above_menu + min_menu_height + height_below_menu;
3215 let max_height = height_above_menu + max_menu_height + height_below_menu;
3216 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3217 target_position,
3218 line_height,
3219 min_height,
3220 max_height,
3221 text_hitbox,
3222 viewport_bounds,
3223 window,
3224 cx,
3225 |height, max_width_for_stable_x, y_flipped, window, cx| {
3226 // First layout the menu to get its size - others can be at least this wide.
3227 let context_menu = if context_menu_visible {
3228 let menu_height = if y_flipped {
3229 height - height_below_menu
3230 } else {
3231 height - height_above_menu
3232 };
3233 let mut element = self
3234 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3235 .expect("Visible context menu should always render.");
3236 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3237 Some((CursorPopoverType::CodeContextMenu, element, size))
3238 } else {
3239 None
3240 };
3241 let min_width = context_menu
3242 .as_ref()
3243 .map_or(px(0.), |(_, _, size)| size.width);
3244 let max_width = max_width_for_stable_x.max(
3245 context_menu
3246 .as_ref()
3247 .map_or(px(0.), |(_, _, size)| size.width),
3248 );
3249
3250 let edit_prediction = if edit_prediction_popover_visible {
3251 self.editor.update(cx, move |editor, cx| {
3252 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3253 let mut element = editor.render_edit_prediction_cursor_popover(
3254 min_width,
3255 max_width,
3256 cursor_point,
3257 style,
3258 accept_binding.keystroke()?,
3259 window,
3260 cx,
3261 )?;
3262 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3263 Some((CursorPopoverType::EditPrediction, element, size))
3264 })
3265 } else {
3266 None
3267 };
3268 vec![edit_prediction, context_menu]
3269 .into_iter()
3270 .flatten()
3271 .collect::<Vec<_>>()
3272 },
3273 ) else {
3274 return;
3275 };
3276
3277 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3278 .iter()
3279 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3280 else {
3281 return;
3282 };
3283 let last_ix = laid_out_popovers.len() - 1;
3284 let menu_is_last = menu_ix == last_ix;
3285 let first_popover_bounds = laid_out_popovers[0].1;
3286 let last_popover_bounds = laid_out_popovers[last_ix].1;
3287
3288 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3289 // right, and otherwise it goes below or to the right.
3290 let mut target_bounds = Bounds::from_corners(
3291 first_popover_bounds.origin,
3292 last_popover_bounds.bottom_right(),
3293 );
3294 target_bounds.size.width = menu_bounds.size.width;
3295
3296 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3297 // based on this is preferred for layout stability.
3298 let mut max_target_bounds = target_bounds;
3299 max_target_bounds.size.height = max_height;
3300 if y_flipped {
3301 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3302 }
3303
3304 // Add spacing around `target_bounds` and `max_target_bounds`.
3305 let mut extend_amount = Edges::all(MENU_GAP);
3306 if y_flipped {
3307 extend_amount.bottom = line_height;
3308 } else {
3309 extend_amount.top = line_height;
3310 }
3311 let target_bounds = target_bounds.extend(extend_amount);
3312 let max_target_bounds = max_target_bounds.extend(extend_amount);
3313
3314 let must_place_above_or_below =
3315 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3316 laid_out_popovers[menu_ix + 1..]
3317 .iter()
3318 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3319 } else {
3320 false
3321 };
3322
3323 self.layout_context_menu_aside(
3324 y_flipped,
3325 *menu_bounds,
3326 target_bounds,
3327 max_target_bounds,
3328 max_menu_height,
3329 must_place_above_or_below,
3330 text_hitbox,
3331 viewport_bounds,
3332 window,
3333 cx,
3334 );
3335 }
3336
3337 #[allow(clippy::too_many_arguments)]
3338 fn layout_gutter_menu(
3339 &self,
3340 line_height: Pixels,
3341 text_hitbox: &Hitbox,
3342 content_origin: gpui::Point<Pixels>,
3343 scroll_pixel_position: gpui::Point<Pixels>,
3344 gutter_overshoot: Pixels,
3345 window: &mut Window,
3346 cx: &mut App,
3347 ) {
3348 let editor = self.editor.read(cx);
3349 if !editor.context_menu_visible() {
3350 return;
3351 }
3352 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3353 editor.context_menu_origin()
3354 else {
3355 return;
3356 };
3357 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3358 // indicator than just a plain first column of the text field.
3359 let target_position = content_origin
3360 + gpui::Point {
3361 x: -gutter_overshoot,
3362 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3363 };
3364 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3365 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3366 let viewport_bounds =
3367 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3368 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3369 ..Default::default()
3370 });
3371 self.layout_popovers_above_or_below_line(
3372 target_position,
3373 line_height,
3374 min_height,
3375 max_height,
3376 text_hitbox,
3377 viewport_bounds,
3378 window,
3379 cx,
3380 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3381 let mut element = self
3382 .render_context_menu(line_height, height, y_flipped, window, cx)
3383 .expect("Visible context menu should always render.");
3384 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3385 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3386 },
3387 );
3388 }
3389
3390 #[allow(clippy::too_many_arguments)]
3391 fn layout_popovers_above_or_below_line(
3392 &self,
3393 target_position: gpui::Point<Pixels>,
3394 line_height: Pixels,
3395 min_height: Pixels,
3396 max_height: Pixels,
3397 text_hitbox: &Hitbox,
3398 viewport_bounds: Bounds<Pixels>,
3399 window: &mut Window,
3400 cx: &mut App,
3401 make_sized_popovers: impl FnOnce(
3402 Pixels,
3403 Pixels,
3404 bool,
3405 &mut Window,
3406 &mut App,
3407 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3408 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3409 // If the max height won't fit below and there is more space above, put it above the line.
3410 let bottom_y_when_flipped = target_position.y - line_height;
3411 let available_above = bottom_y_when_flipped - text_hitbox.top();
3412 let available_below = text_hitbox.bottom() - target_position.y;
3413 let y_overflows_below = max_height > available_below;
3414 let mut y_flipped = y_overflows_below && available_above > available_below;
3415 let mut height = cmp::min(
3416 max_height,
3417 if y_flipped {
3418 available_above
3419 } else {
3420 available_below
3421 },
3422 );
3423
3424 // If the min height doesn't fit within text bounds, instead fit within the window.
3425 if height < min_height {
3426 let available_above = bottom_y_when_flipped;
3427 let available_below = viewport_bounds.bottom() - target_position.y;
3428 if available_below > min_height {
3429 y_flipped = false;
3430 height = min_height;
3431 } else if available_above > min_height {
3432 y_flipped = true;
3433 height = min_height;
3434 } else if available_above > available_below {
3435 y_flipped = true;
3436 height = available_above;
3437 } else {
3438 y_flipped = false;
3439 height = available_below;
3440 }
3441 }
3442
3443 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3444
3445 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3446 // for very narrow windows.
3447 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3448 if popovers.is_empty() {
3449 return None;
3450 }
3451
3452 let max_width = popovers
3453 .iter()
3454 .map(|(_, _, size)| size.width)
3455 .max()
3456 .unwrap_or_default();
3457
3458 let mut current_position = gpui::Point {
3459 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3460 // overflow. Include space for the scrollbar.
3461 x: target_position
3462 .x
3463 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3464 y: if y_flipped {
3465 bottom_y_when_flipped
3466 } else {
3467 target_position.y
3468 },
3469 };
3470
3471 let mut laid_out_popovers = popovers
3472 .into_iter()
3473 .map(|(popover_type, element, size)| {
3474 if y_flipped {
3475 current_position.y -= size.height;
3476 }
3477 let position = current_position;
3478 window.defer_draw(element, current_position, 1);
3479 if !y_flipped {
3480 current_position.y += size.height + MENU_GAP;
3481 } else {
3482 current_position.y -= MENU_GAP;
3483 }
3484 (popover_type, Bounds::new(position, size))
3485 })
3486 .collect::<Vec<_>>();
3487
3488 if y_flipped {
3489 laid_out_popovers.reverse();
3490 }
3491
3492 Some((laid_out_popovers, y_flipped))
3493 }
3494
3495 #[allow(clippy::too_many_arguments)]
3496 fn layout_context_menu_aside(
3497 &self,
3498 y_flipped: bool,
3499 menu_bounds: Bounds<Pixels>,
3500 target_bounds: Bounds<Pixels>,
3501 max_target_bounds: Bounds<Pixels>,
3502 max_height: Pixels,
3503 must_place_above_or_below: bool,
3504 text_hitbox: &Hitbox,
3505 viewport_bounds: Bounds<Pixels>,
3506 window: &mut Window,
3507 cx: &mut App,
3508 ) {
3509 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3510 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3511 && !must_place_above_or_below
3512 {
3513 let max_width = cmp::min(
3514 available_within_viewport.right - px(1.),
3515 MENU_ASIDE_MAX_WIDTH,
3516 );
3517 let Some(mut aside) =
3518 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3519 else {
3520 return;
3521 };
3522 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3523 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3524 Some((aside, right_position))
3525 } else {
3526 let max_size = size(
3527 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3528 // won't be needed here.
3529 cmp::min(
3530 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3531 viewport_bounds.right(),
3532 ),
3533 cmp::min(
3534 max_height,
3535 cmp::max(
3536 available_within_viewport.top,
3537 available_within_viewport.bottom,
3538 ),
3539 ) - POPOVER_Y_PADDING,
3540 );
3541 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3542 return;
3543 };
3544 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3545
3546 let top_position = point(
3547 menu_bounds.origin.x,
3548 target_bounds.top() - actual_size.height,
3549 );
3550 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3551
3552 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3553 // Prefer to fit on the same side of the line as the menu, then on the other side of
3554 // the line.
3555 if !y_flipped && wanted.height < available.bottom {
3556 Some(bottom_position)
3557 } else if !y_flipped && wanted.height < available.top {
3558 Some(top_position)
3559 } else if y_flipped && wanted.height < available.top {
3560 Some(top_position)
3561 } else if y_flipped && wanted.height < available.bottom {
3562 Some(bottom_position)
3563 } else {
3564 None
3565 }
3566 };
3567
3568 // Prefer choosing a direction using max sizes rather than actual size for stability.
3569 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3570 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3571 let aside_position = fit_within(available_within_text, wanted)
3572 // Fallback: fit max size in window.
3573 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3574 // Fallback: fit actual size in window.
3575 .or_else(|| fit_within(available_within_viewport, actual_size));
3576
3577 aside_position.map(|position| (aside, position))
3578 };
3579
3580 // Skip drawing if it doesn't fit anywhere.
3581 if let Some((aside, position)) = positioned_aside {
3582 window.defer_draw(aside, position, 1);
3583 }
3584 }
3585
3586 fn render_context_menu(
3587 &self,
3588 line_height: Pixels,
3589 height: Pixels,
3590 y_flipped: bool,
3591 window: &mut Window,
3592 cx: &mut App,
3593 ) -> Option<AnyElement> {
3594 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3595 self.editor.update(cx, |editor, cx| {
3596 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3597 })
3598 }
3599
3600 fn render_context_menu_aside(
3601 &self,
3602 max_size: Size<Pixels>,
3603
3604 cx: &mut App,
3605 ) -> Option<AnyElement> {
3606 if max_size.width < px(100.) || max_size.height < px(12.) {
3607 None
3608 } else {
3609 self.editor.update(cx, |editor, cx| {
3610 editor.render_context_menu_aside(&self.style, max_size, cx)
3611 })
3612 }
3613 }
3614
3615 #[allow(clippy::too_many_arguments)]
3616 fn layout_edit_prediction_popover(
3617 &self,
3618 text_bounds: &Bounds<Pixels>,
3619 content_origin: gpui::Point<Pixels>,
3620 editor_snapshot: &EditorSnapshot,
3621 visible_row_range: Range<DisplayRow>,
3622 scroll_top: f32,
3623 scroll_bottom: f32,
3624 line_layouts: &[LineWithInvisibles],
3625 line_height: Pixels,
3626 scroll_pixel_position: gpui::Point<Pixels>,
3627 newest_selection_head: Option<DisplayPoint>,
3628 editor_width: Pixels,
3629 style: &EditorStyle,
3630 window: &mut Window,
3631 cx: &mut App,
3632 ) -> Option<AnyElement> {
3633 const PADDING_X: Pixels = Pixels(24.);
3634 const PADDING_Y: Pixels = Pixels(2.);
3635
3636 let editor = self.editor.read(cx);
3637 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3638
3639 if editor.edit_prediction_visible_in_cursor_popover(true) {
3640 return None;
3641 }
3642
3643 // Adjust text origin for horizontal scrolling (in some cases here)
3644 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3645
3646 // Clamp left offset after extreme scrollings
3647 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3648 x: point.x.max(content_origin.x),
3649 y: point.y,
3650 };
3651
3652 match &active_inline_completion.completion {
3653 InlineCompletion::Move { target, .. } => {
3654 let target_display_point = target.to_display_point(editor_snapshot);
3655
3656 if editor.edit_prediction_requires_modifier() {
3657 if !editor.edit_prediction_preview_is_active() {
3658 return None;
3659 }
3660
3661 if target_display_point.row() < visible_row_range.start {
3662 let mut element = editor
3663 .render_edit_prediction_line_popover(
3664 "Scroll",
3665 Some(IconName::ArrowUp),
3666 window,
3667 cx,
3668 )?
3669 .into_any();
3670
3671 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3672
3673 let cursor = newest_selection_head?;
3674 let cursor_row_layout = line_layouts
3675 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3676 let cursor_column = cursor.column() as usize;
3677
3678 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3679
3680 const PADDING_Y: Pixels = px(12.);
3681
3682 let origin = start_point + point(cursor_character_x, PADDING_Y);
3683
3684 element.prepaint_at(origin, window, cx);
3685 return Some(element);
3686 } else if target_display_point.row() >= visible_row_range.end {
3687 let mut element = editor
3688 .render_edit_prediction_line_popover(
3689 "Scroll",
3690 Some(IconName::ArrowDown),
3691 window,
3692 cx,
3693 )?
3694 .into_any();
3695
3696 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3697
3698 let cursor = newest_selection_head?;
3699 let cursor_row_layout = line_layouts
3700 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3701 let cursor_column = cursor.column() as usize;
3702
3703 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3704 const PADDING_Y: Pixels = px(12.);
3705
3706 let origin = start_point
3707 + point(
3708 cursor_character_x,
3709 text_bounds.size.height - size.height - PADDING_Y,
3710 );
3711
3712 element.prepaint_at(origin, window, cx);
3713 return Some(element);
3714 } else {
3715 const POLE_WIDTH: Pixels = px(2.);
3716
3717 let mut element = v_flex()
3718 .child(
3719 editor
3720 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3721 .rounded_br(px(0.))
3722 .rounded_tr(px(0.))
3723 .border_r_2(),
3724 )
3725 .child(
3726 div()
3727 .w(POLE_WIDTH)
3728 .bg(cx.theme().colors().text_accent.opacity(0.8))
3729 .h(line_height),
3730 )
3731 .items_end()
3732 .into_any();
3733
3734 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3735
3736 let line_layout =
3737 line_layouts
3738 .get(target_display_point.row().minus(visible_row_range.start)
3739 as usize)?;
3740 let target_column = target_display_point.column() as usize;
3741
3742 let target_x = line_layout.x_for_index(target_column);
3743 let target_y = (target_display_point.row().as_f32() * line_height)
3744 - scroll_pixel_position.y;
3745
3746 let origin = clamp_start(
3747 start_point + point(target_x, target_y)
3748 - point(size.width - POLE_WIDTH, size.height - line_height),
3749 );
3750
3751 element.prepaint_at(origin, window, cx);
3752
3753 return Some(element);
3754 }
3755 }
3756
3757 if target_display_point.row().as_f32() < scroll_top {
3758 let mut element = editor
3759 .render_edit_prediction_line_popover(
3760 "Jump to Edit",
3761 Some(IconName::ArrowUp),
3762 window,
3763 cx,
3764 )?
3765 .into_any();
3766
3767 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3768 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3769
3770 element.prepaint_at(text_bounds.origin + offset, window, cx);
3771 Some(element)
3772 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3773 let mut element = editor
3774 .render_edit_prediction_line_popover(
3775 "Jump to Edit",
3776 Some(IconName::ArrowDown),
3777 window,
3778 cx,
3779 )?
3780 .into_any();
3781
3782 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3783 let offset = point(
3784 (text_bounds.size.width - size.width) / 2.,
3785 text_bounds.size.height - size.height - PADDING_Y,
3786 );
3787
3788 element.prepaint_at(text_bounds.origin + offset, window, cx);
3789 Some(element)
3790 } else {
3791 let mut element = editor
3792 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3793 .into_any();
3794 let target_line_end = DisplayPoint::new(
3795 target_display_point.row(),
3796 editor_snapshot.line_len(target_display_point.row()),
3797 );
3798 let origin = self.editor.update(cx, |editor, _cx| {
3799 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3800 })?;
3801
3802 element.prepaint_as_root(
3803 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3804 AvailableSpace::min_size(),
3805 window,
3806 cx,
3807 );
3808 Some(element)
3809 }
3810 }
3811 InlineCompletion::Edit {
3812 edits,
3813 edit_preview,
3814 display_mode,
3815 snapshot,
3816 } => {
3817 if self.editor.read(cx).has_visible_completions_menu() {
3818 return None;
3819 }
3820
3821 let edit_start = edits
3822 .first()
3823 .unwrap()
3824 .0
3825 .start
3826 .to_display_point(editor_snapshot);
3827 let edit_end = edits
3828 .last()
3829 .unwrap()
3830 .0
3831 .end
3832 .to_display_point(editor_snapshot);
3833
3834 let is_visible = visible_row_range.contains(&edit_start.row())
3835 || visible_row_range.contains(&edit_end.row());
3836 if !is_visible {
3837 return None;
3838 }
3839
3840 match display_mode {
3841 EditDisplayMode::TabAccept => {
3842 let range = &edits.first()?.0;
3843 let target_display_point = range.end.to_display_point(editor_snapshot);
3844
3845 let target_line_end = DisplayPoint::new(
3846 target_display_point.row(),
3847 editor_snapshot.line_len(target_display_point.row()),
3848 );
3849 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3850 Some((
3851 editor
3852 .render_edit_prediction_line_popover(
3853 "Accept", None, window, cx,
3854 )?
3855 .into_any(),
3856 editor.display_to_pixel_point(
3857 target_line_end,
3858 editor_snapshot,
3859 window,
3860 )?,
3861 ))
3862 })?;
3863
3864 element.prepaint_as_root(
3865 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3866 AvailableSpace::min_size(),
3867 window,
3868 cx,
3869 );
3870 return Some(element);
3871 }
3872 EditDisplayMode::Inline => return None,
3873 EditDisplayMode::DiffPopover => {}
3874 }
3875
3876 let highlighted_edits = crate::inline_completion_edit_text(
3877 &snapshot,
3878 edits,
3879 edit_preview.as_ref()?,
3880 false,
3881 cx,
3882 );
3883
3884 let styled_text = highlighted_edits.to_styled_text(&style.text);
3885 let line_count = highlighted_edits.text.lines().count();
3886
3887 const BORDER_WIDTH: Pixels = px(1.);
3888
3889 let mut element = h_flex()
3890 .items_start()
3891 .child(
3892 h_flex()
3893 .bg(cx.theme().colors().editor_background)
3894 .border(BORDER_WIDTH)
3895 .shadow_sm()
3896 .border_color(cx.theme().colors().border)
3897 .rounded_l_lg()
3898 .when(line_count > 1, |el| el.rounded_br_lg())
3899 .pr_1()
3900 .child(styled_text),
3901 )
3902 .child(
3903 h_flex()
3904 .h(line_height + BORDER_WIDTH * px(2.))
3905 .px_1p5()
3906 .gap_1()
3907 // Workaround: For some reason, there's a gap if we don't do this
3908 .ml(-BORDER_WIDTH)
3909 .shadow(smallvec![gpui::BoxShadow {
3910 color: gpui::black().opacity(0.05),
3911 offset: point(px(1.), px(1.)),
3912 blur_radius: px(2.),
3913 spread_radius: px(0.),
3914 }])
3915 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
3916 .border(BORDER_WIDTH)
3917 .border_color(cx.theme().colors().border)
3918 .rounded_r_lg()
3919 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
3920 )
3921 .into_any();
3922
3923 let longest_row =
3924 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3925 let longest_line_width = if visible_row_range.contains(&longest_row) {
3926 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3927 } else {
3928 layout_line(
3929 longest_row,
3930 editor_snapshot,
3931 style,
3932 editor_width,
3933 |_| false,
3934 window,
3935 cx,
3936 )
3937 .width
3938 };
3939
3940 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3941 .extend(Edges {
3942 right: -Self::SCROLLBAR_WIDTH,
3943 ..Default::default()
3944 });
3945
3946 let x_after_longest =
3947 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3948
3949 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3950
3951 // Fully visible if it can be displayed within the window (allow overlapping other
3952 // panes). However, this is only allowed if the popover starts within text_bounds.
3953 let can_position_to_the_right = x_after_longest < text_bounds.right()
3954 && x_after_longest + element_bounds.width < viewport_bounds.right();
3955
3956 let mut origin = if can_position_to_the_right {
3957 point(
3958 x_after_longest,
3959 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3960 - scroll_pixel_position.y,
3961 )
3962 } else {
3963 let cursor_row = newest_selection_head.map(|head| head.row());
3964 let above_edit = edit_start
3965 .row()
3966 .0
3967 .checked_sub(line_count as u32)
3968 .map(DisplayRow);
3969 let below_edit = Some(edit_end.row() + 1);
3970 let above_cursor = cursor_row
3971 .and_then(|row| row.0.checked_sub(line_count as u32).map(DisplayRow));
3972 let below_cursor = cursor_row.map(|cursor_row| cursor_row + 1);
3973
3974 // Place the edit popover adjacent to the edit if there is a location
3975 // available that is onscreen and does not obscure the cursor. Otherwise,
3976 // place it adjacent to the cursor.
3977 let row_target = [above_edit, below_edit, above_cursor, below_cursor]
3978 .into_iter()
3979 .flatten()
3980 .find(|&start_row| {
3981 let end_row = start_row + line_count as u32;
3982 visible_row_range.contains(&start_row)
3983 && visible_row_range.contains(&end_row)
3984 && cursor_row.map_or(true, |cursor_row| {
3985 !((start_row..end_row).contains(&cursor_row))
3986 })
3987 })?;
3988
3989 content_origin
3990 + point(
3991 -scroll_pixel_position.x,
3992 row_target.as_f32() * line_height - scroll_pixel_position.y,
3993 )
3994 };
3995
3996 origin.x -= BORDER_WIDTH;
3997
3998 window.defer_draw(element, origin, 1);
3999
4000 // Do not return an element, since it will already be drawn due to defer_draw.
4001 None
4002 }
4003 }
4004 }
4005
4006 fn layout_mouse_context_menu(
4007 &self,
4008 editor_snapshot: &EditorSnapshot,
4009 visible_range: Range<DisplayRow>,
4010 content_origin: gpui::Point<Pixels>,
4011 window: &mut Window,
4012 cx: &mut App,
4013 ) -> Option<AnyElement> {
4014 let position = self.editor.update(cx, |editor, _cx| {
4015 let visible_start_point = editor.display_to_pixel_point(
4016 DisplayPoint::new(visible_range.start, 0),
4017 editor_snapshot,
4018 window,
4019 )?;
4020 let visible_end_point = editor.display_to_pixel_point(
4021 DisplayPoint::new(visible_range.end, 0),
4022 editor_snapshot,
4023 window,
4024 )?;
4025
4026 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4027 let (source_display_point, position) = match mouse_context_menu.position {
4028 MenuPosition::PinnedToScreen(point) => (None, point),
4029 MenuPosition::PinnedToEditor { source, offset } => {
4030 let source_display_point = source.to_display_point(editor_snapshot);
4031 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4032 let position = content_origin + source_point + offset;
4033 (Some(source_display_point), position)
4034 }
4035 };
4036
4037 let source_included = source_display_point.map_or(true, |source_display_point| {
4038 visible_range
4039 .to_inclusive()
4040 .contains(&source_display_point.row())
4041 });
4042 let position_included =
4043 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4044 if !source_included && !position_included {
4045 None
4046 } else {
4047 Some(position)
4048 }
4049 })?;
4050
4051 let mut element = self.editor.update(cx, |editor, _| {
4052 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4053 let context_menu = mouse_context_menu.context_menu.clone();
4054
4055 Some(
4056 deferred(
4057 anchored()
4058 .position(position)
4059 .child(context_menu)
4060 .anchor(Corner::TopLeft)
4061 .snap_to_window_with_margin(px(8.)),
4062 )
4063 .with_priority(1)
4064 .into_any(),
4065 )
4066 })?;
4067
4068 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4069 Some(element)
4070 }
4071
4072 #[allow(clippy::too_many_arguments)]
4073 fn layout_hover_popovers(
4074 &self,
4075 snapshot: &EditorSnapshot,
4076 hitbox: &Hitbox,
4077 text_hitbox: &Hitbox,
4078 visible_display_row_range: Range<DisplayRow>,
4079 content_origin: gpui::Point<Pixels>,
4080 scroll_pixel_position: gpui::Point<Pixels>,
4081 line_layouts: &[LineWithInvisibles],
4082 line_height: Pixels,
4083 em_width: Pixels,
4084 window: &mut Window,
4085 cx: &mut App,
4086 ) {
4087 struct MeasuredHoverPopover {
4088 element: AnyElement,
4089 size: Size<Pixels>,
4090 horizontal_offset: Pixels,
4091 }
4092
4093 let max_size = size(
4094 (120. * em_width) // Default size
4095 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4096 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4097 (16. * line_height) // Default size
4098 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4099 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4100 );
4101
4102 let hover_popovers = self.editor.update(cx, |editor, cx| {
4103 editor
4104 .hover_state
4105 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4106 });
4107 let Some((position, hover_popovers)) = hover_popovers else {
4108 return;
4109 };
4110
4111 // This is safe because we check on layout whether the required row is available
4112 let hovered_row_layout =
4113 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4114
4115 // Compute Hovered Point
4116 let x =
4117 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4118 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4119 let hovered_point = content_origin + point(x, y);
4120
4121 let mut overall_height = Pixels::ZERO;
4122 let mut measured_hover_popovers = Vec::new();
4123 for mut hover_popover in hover_popovers {
4124 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4125 let horizontal_offset =
4126 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4127
4128 overall_height += HOVER_POPOVER_GAP + size.height;
4129
4130 measured_hover_popovers.push(MeasuredHoverPopover {
4131 element: hover_popover,
4132 size,
4133 horizontal_offset,
4134 });
4135 }
4136 overall_height += HOVER_POPOVER_GAP;
4137
4138 fn draw_occluder(
4139 width: Pixels,
4140 origin: gpui::Point<Pixels>,
4141 window: &mut Window,
4142 cx: &mut App,
4143 ) {
4144 let mut occlusion = div()
4145 .size_full()
4146 .occlude()
4147 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4148 .into_any_element();
4149 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4150 window.defer_draw(occlusion, origin, 2);
4151 }
4152
4153 if hovered_point.y > overall_height {
4154 // There is enough space above. Render popovers above the hovered point
4155 let mut current_y = hovered_point.y;
4156 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4157 let size = popover.size;
4158 let popover_origin = point(
4159 hovered_point.x + popover.horizontal_offset,
4160 current_y - size.height,
4161 );
4162
4163 window.defer_draw(popover.element, popover_origin, 2);
4164 if position != itertools::Position::Last {
4165 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4166 draw_occluder(size.width, origin, window, cx);
4167 }
4168
4169 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4170 }
4171 } else {
4172 // There is not enough space above. Render popovers below the hovered point
4173 let mut current_y = hovered_point.y + line_height;
4174 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4175 let size = popover.size;
4176 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4177
4178 window.defer_draw(popover.element, popover_origin, 2);
4179 if position != itertools::Position::Last {
4180 let origin = point(popover_origin.x, popover_origin.y + size.height);
4181 draw_occluder(size.width, origin, window, cx);
4182 }
4183
4184 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4185 }
4186 }
4187 }
4188
4189 #[allow(clippy::too_many_arguments)]
4190 fn layout_diff_hunk_controls(
4191 &self,
4192 row_range: Range<DisplayRow>,
4193 row_infos: &[RowInfo],
4194 text_hitbox: &Hitbox,
4195 position_map: &PositionMap,
4196 newest_cursor_position: Option<DisplayPoint>,
4197 line_height: Pixels,
4198 scroll_pixel_position: gpui::Point<Pixels>,
4199 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4200 editor: Entity<Editor>,
4201 window: &mut Window,
4202 cx: &mut App,
4203 ) -> Vec<AnyElement> {
4204 let point_for_position = position_map.point_for_position(window.mouse_position());
4205
4206 let mut controls = vec![];
4207
4208 let active_positions = [
4209 Some(point_for_position.previous_valid),
4210 newest_cursor_position,
4211 ];
4212
4213 let mut display_hunks = display_hunks.iter().peekable();
4214 while let Some((hunk, _)) = display_hunks.next() {
4215 if let DisplayDiffHunk::Unfolded {
4216 display_row_range,
4217 multi_buffer_range,
4218 status,
4219 is_primary: true,
4220 ..
4221 } = &hunk
4222 {
4223 let mut display_row_range = display_row_range.clone();
4224 if let Some((
4225 DisplayDiffHunk::Unfolded {
4226 display_row_range: secondary_display_row_range,
4227 is_primary: false,
4228 ..
4229 },
4230 _,
4231 )) = display_hunks.peek()
4232 {
4233 display_row_range.end = secondary_display_row_range.end;
4234 }
4235
4236 if display_row_range.start < row_range.start
4237 || display_row_range.start >= row_range.end
4238 {
4239 continue;
4240 }
4241 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4242 if row_infos[row_ix].diff_status.is_none() {
4243 continue;
4244 }
4245 if matches!(
4246 row_infos[row_ix].diff_status,
4247 Some(DiffHunkStatus::Added(_))
4248 ) && !matches!(*status, DiffHunkStatus::Added(_))
4249 {
4250 continue;
4251 }
4252 if active_positions
4253 .iter()
4254 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4255 {
4256 let y = display_row_range.start.as_f32() * line_height
4257 + text_hitbox.bounds.top()
4258 - scroll_pixel_position.y;
4259 let x = text_hitbox.bounds.right()
4260 - rems(6.).to_pixels(window.rem_size())
4261 - px(33.);
4262
4263 let mut element = diff_hunk_controls(
4264 display_row_range.start.0,
4265 multi_buffer_range.clone(),
4266 line_height,
4267 &editor,
4268 window,
4269 cx,
4270 );
4271 element.prepaint_as_root(
4272 gpui::Point::new(x, y),
4273 size(px(100.0), line_height).into(),
4274 window,
4275 cx,
4276 );
4277 controls.push(element);
4278 }
4279 }
4280 }
4281
4282 controls
4283 }
4284
4285 #[allow(clippy::too_many_arguments)]
4286 fn layout_signature_help(
4287 &self,
4288 hitbox: &Hitbox,
4289 content_origin: gpui::Point<Pixels>,
4290 scroll_pixel_position: gpui::Point<Pixels>,
4291 newest_selection_head: Option<DisplayPoint>,
4292 start_row: DisplayRow,
4293 line_layouts: &[LineWithInvisibles],
4294 line_height: Pixels,
4295 em_width: Pixels,
4296 window: &mut Window,
4297 cx: &mut App,
4298 ) {
4299 if !self.editor.focus_handle(cx).is_focused(window) {
4300 return;
4301 }
4302 let Some(newest_selection_head) = newest_selection_head else {
4303 return;
4304 };
4305 let selection_row = newest_selection_head.row();
4306 if selection_row < start_row {
4307 return;
4308 }
4309 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4310 else {
4311 return;
4312 };
4313
4314 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4315 - scroll_pixel_position.x
4316 + content_origin.x;
4317 let start_y =
4318 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4319
4320 let max_size = size(
4321 (120. * em_width) // Default size
4322 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4323 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4324 (16. * line_height) // Default size
4325 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4326 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4327 );
4328
4329 let maybe_element = self.editor.update(cx, |editor, cx| {
4330 if let Some(popover) = editor.signature_help_state.popover_mut() {
4331 let element = popover.render(
4332 &self.style,
4333 max_size,
4334 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4335 cx,
4336 );
4337 Some(element)
4338 } else {
4339 None
4340 }
4341 });
4342 if let Some(mut element) = maybe_element {
4343 let window_size = window.viewport_size();
4344 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4345 let mut point = point(start_x, start_y - size.height);
4346
4347 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4348 if point.x + size.width >= window_size.width {
4349 point.x = window_size.width - size.width;
4350 }
4351
4352 window.defer_draw(element, point, 1)
4353 }
4354 }
4355
4356 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4357 window.paint_layer(layout.hitbox.bounds, |window| {
4358 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4359 let gutter_bg = cx.theme().colors().editor_gutter_background;
4360 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4361 window.paint_quad(fill(
4362 layout.position_map.text_hitbox.bounds,
4363 self.style.background,
4364 ));
4365
4366 if let EditorMode::Full = layout.mode {
4367 let mut active_rows = layout.active_rows.iter().peekable();
4368 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4369 let mut end_row = start_row.0;
4370 while active_rows
4371 .peek()
4372 .map_or(false, |(active_row, has_selection)| {
4373 active_row.0 == end_row + 1
4374 && *has_selection == contains_non_empty_selection
4375 })
4376 {
4377 active_rows.next().unwrap();
4378 end_row += 1;
4379 }
4380
4381 if !contains_non_empty_selection {
4382 let highlight_h_range =
4383 match layout.position_map.snapshot.current_line_highlight {
4384 CurrentLineHighlight::Gutter => Some(Range {
4385 start: layout.hitbox.left(),
4386 end: layout.gutter_hitbox.right(),
4387 }),
4388 CurrentLineHighlight::Line => Some(Range {
4389 start: layout.position_map.text_hitbox.bounds.left(),
4390 end: layout.position_map.text_hitbox.bounds.right(),
4391 }),
4392 CurrentLineHighlight::All => Some(Range {
4393 start: layout.hitbox.left(),
4394 end: layout.hitbox.right(),
4395 }),
4396 CurrentLineHighlight::None => None,
4397 };
4398 if let Some(range) = highlight_h_range {
4399 let active_line_bg = cx.theme().colors().editor_active_line_background;
4400 let bounds = Bounds {
4401 origin: point(
4402 range.start,
4403 layout.hitbox.origin.y
4404 + (start_row.as_f32() - scroll_top)
4405 * layout.position_map.line_height,
4406 ),
4407 size: size(
4408 range.end - range.start,
4409 layout.position_map.line_height
4410 * (end_row - start_row.0 + 1) as f32,
4411 ),
4412 };
4413 window.paint_quad(fill(bounds, active_line_bg));
4414 }
4415 }
4416 }
4417
4418 let mut paint_highlight =
4419 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4420 let origin = point(
4421 layout.hitbox.origin.x,
4422 layout.hitbox.origin.y
4423 + (highlight_row_start.as_f32() - scroll_top)
4424 * layout.position_map.line_height,
4425 );
4426 let size = size(
4427 layout.hitbox.size.width,
4428 layout.position_map.line_height
4429 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4430 );
4431 window.paint_quad(fill(Bounds { origin, size }, color));
4432 };
4433
4434 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4435 for (&new_row, &new_background) in &layout.highlighted_rows {
4436 match &mut current_paint {
4437 Some((current_background, current_range)) => {
4438 let current_background = *current_background;
4439 let new_range_started = current_background != new_background
4440 || current_range.end.next_row() != new_row;
4441 if new_range_started {
4442 paint_highlight(
4443 current_range.start,
4444 current_range.end,
4445 current_background,
4446 );
4447 current_paint = Some((new_background, new_row..new_row));
4448 continue;
4449 } else {
4450 current_range.end = current_range.end.next_row();
4451 }
4452 }
4453 None => current_paint = Some((new_background, new_row..new_row)),
4454 };
4455 }
4456 if let Some((color, range)) = current_paint {
4457 paint_highlight(range.start, range.end, color);
4458 }
4459
4460 let scroll_left =
4461 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4462
4463 for (wrap_position, active) in layout.wrap_guides.iter() {
4464 let x = (layout.position_map.text_hitbox.origin.x
4465 + *wrap_position
4466 + layout.position_map.em_width / 2.)
4467 - scroll_left;
4468
4469 let show_scrollbars = {
4470 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4471
4472 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4473 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4474 };
4475
4476 if x < layout.position_map.text_hitbox.origin.x
4477 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4478 {
4479 continue;
4480 }
4481
4482 let color = if *active {
4483 cx.theme().colors().editor_active_wrap_guide
4484 } else {
4485 cx.theme().colors().editor_wrap_guide
4486 };
4487 window.paint_quad(fill(
4488 Bounds {
4489 origin: point(x, layout.position_map.text_hitbox.origin.y),
4490 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4491 },
4492 color,
4493 ));
4494 }
4495 }
4496 })
4497 }
4498
4499 fn paint_indent_guides(
4500 &mut self,
4501 layout: &mut EditorLayout,
4502 window: &mut Window,
4503 cx: &mut App,
4504 ) {
4505 let Some(indent_guides) = &layout.indent_guides else {
4506 return;
4507 };
4508
4509 let faded_color = |color: Hsla, alpha: f32| {
4510 let mut faded = color;
4511 faded.a = alpha;
4512 faded
4513 };
4514
4515 for indent_guide in indent_guides {
4516 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4517 let settings = indent_guide.settings;
4518
4519 // TODO fixed for now, expose them through themes later
4520 const INDENT_AWARE_ALPHA: f32 = 0.2;
4521 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4522 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4523 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4524
4525 let line_color = match (settings.coloring, indent_guide.active) {
4526 (IndentGuideColoring::Disabled, _) => None,
4527 (IndentGuideColoring::Fixed, false) => {
4528 Some(cx.theme().colors().editor_indent_guide)
4529 }
4530 (IndentGuideColoring::Fixed, true) => {
4531 Some(cx.theme().colors().editor_indent_guide_active)
4532 }
4533 (IndentGuideColoring::IndentAware, false) => {
4534 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4535 }
4536 (IndentGuideColoring::IndentAware, true) => {
4537 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4538 }
4539 };
4540
4541 let background_color = match (settings.background_coloring, indent_guide.active) {
4542 (IndentGuideBackgroundColoring::Disabled, _) => None,
4543 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4544 indent_accent_colors,
4545 INDENT_AWARE_BACKGROUND_ALPHA,
4546 )),
4547 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4548 indent_accent_colors,
4549 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4550 )),
4551 };
4552
4553 let requested_line_width = if indent_guide.active {
4554 settings.active_line_width
4555 } else {
4556 settings.line_width
4557 }
4558 .clamp(1, 10);
4559 let mut line_indicator_width = 0.;
4560 if let Some(color) = line_color {
4561 window.paint_quad(fill(
4562 Bounds {
4563 origin: indent_guide.origin,
4564 size: size(px(requested_line_width as f32), indent_guide.length),
4565 },
4566 color,
4567 ));
4568 line_indicator_width = requested_line_width as f32;
4569 }
4570
4571 if let Some(color) = background_color {
4572 let width = indent_guide.single_indent_width - px(line_indicator_width);
4573 window.paint_quad(fill(
4574 Bounds {
4575 origin: point(
4576 indent_guide.origin.x + px(line_indicator_width),
4577 indent_guide.origin.y,
4578 ),
4579 size: size(width, indent_guide.length),
4580 },
4581 color,
4582 ));
4583 }
4584 }
4585 }
4586
4587 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4588 let is_singleton = self.editor.read(cx).is_singleton(cx);
4589
4590 let line_height = layout.position_map.line_height;
4591 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4592
4593 for LineNumberLayout {
4594 shaped_line,
4595 hitbox,
4596 display_row,
4597 } in layout.line_numbers.values()
4598 {
4599 let Some(hitbox) = hitbox else {
4600 continue;
4601 };
4602
4603 let is_active = layout.active_rows.contains_key(&display_row);
4604
4605 let color = if is_active {
4606 cx.theme().colors().editor_active_line_number
4607 } else if !is_singleton && hitbox.is_hovered(window) {
4608 cx.theme().colors().editor_hover_line_number
4609 } else {
4610 cx.theme().colors().editor_line_number
4611 };
4612
4613 let Some(line) = self
4614 .shape_line_number(shaped_line.text.clone(), color, window)
4615 .log_err()
4616 else {
4617 continue;
4618 };
4619 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4620 continue;
4621 };
4622 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4623 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4624 if is_singleton {
4625 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4626 } else {
4627 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4628 }
4629 }
4630 }
4631
4632 fn paint_diff_hunk_gutter_indicators(
4633 layout: &mut EditorLayout,
4634 window: &mut Window,
4635 cx: &mut App,
4636 ) {
4637 if layout.display_hunks.is_empty() {
4638 return;
4639 }
4640
4641 let corners = Corners::all(px(0.));
4642
4643 let line_height = layout.position_map.line_height;
4644 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4645 for (hunk, hitbox) in &layout.display_hunks {
4646 let hunk_to_paint = match hunk {
4647 DisplayDiffHunk::Folded { .. } => {
4648 let hunk_bounds = Self::diff_hunk_bounds(
4649 &layout.position_map.snapshot,
4650 line_height,
4651 layout.gutter_hitbox.bounds,
4652 hunk,
4653 );
4654 Some((
4655 hunk_bounds,
4656 cx.theme().colors().version_control_modified.opacity(0.7),
4657 corners,
4658 &DiffHunkSecondaryStatus::None,
4659 false,
4660 ))
4661 }
4662 DisplayDiffHunk::Unfolded {
4663 status,
4664 display_row_range,
4665 expanded,
4666 ..
4667 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4668 DiffHunkStatus::Added(secondary_status) => (
4669 hunk_hitbox.bounds,
4670 cx.theme().colors().version_control_added.opacity(0.7),
4671 corners,
4672 secondary_status,
4673 *expanded,
4674 ),
4675 DiffHunkStatus::Modified(secondary_status) => (
4676 hunk_hitbox.bounds,
4677 cx.theme().colors().version_control_modified.opacity(0.7),
4678 corners,
4679 secondary_status,
4680 *expanded,
4681 ),
4682 DiffHunkStatus::Removed(secondary_status)
4683 if !display_row_range.is_empty() =>
4684 {
4685 (
4686 hunk_hitbox.bounds,
4687 cx.theme().colors().version_control_deleted.opacity(0.7),
4688 corners,
4689 secondary_status,
4690 *expanded,
4691 )
4692 }
4693 DiffHunkStatus::Removed(secondary_status) => (
4694 Bounds::new(
4695 point(
4696 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4697 hunk_hitbox.origin.y,
4698 ),
4699 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4700 ),
4701 cx.theme().colors().version_control_deleted.opacity(0.7),
4702 Corners::all(1. * line_height),
4703 secondary_status,
4704 *expanded,
4705 ),
4706 }),
4707 };
4708
4709 if let Some((
4710 hunk_bounds,
4711 background_color,
4712 corner_radii,
4713 secondary_status,
4714 expanded,
4715 )) = hunk_to_paint
4716 {
4717 let background =
4718 if *secondary_status != DiffHunkSecondaryStatus::None && expanded {
4719 pattern_slash(background_color, line_height.0 / 2.5)
4720 } else {
4721 solid_color(background_color)
4722 };
4723
4724 window.paint_quad(quad(
4725 hunk_bounds,
4726 corner_radii,
4727 background,
4728 Edges::default(),
4729 transparent_black(),
4730 ));
4731 }
4732 }
4733 });
4734 }
4735
4736 fn diff_hunk_bounds(
4737 snapshot: &EditorSnapshot,
4738 line_height: Pixels,
4739 gutter_bounds: Bounds<Pixels>,
4740 hunk: &DisplayDiffHunk,
4741 ) -> Bounds<Pixels> {
4742 let scroll_position = snapshot.scroll_position();
4743 let scroll_top = scroll_position.y * line_height;
4744 let gutter_strip_width = (0.275 * line_height).floor();
4745
4746 match hunk {
4747 DisplayDiffHunk::Folded { display_row, .. } => {
4748 let start_y = display_row.as_f32() * line_height - scroll_top;
4749 let end_y = start_y + line_height;
4750 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4751 let highlight_size = size(gutter_strip_width, end_y - start_y);
4752 Bounds::new(highlight_origin, highlight_size)
4753 }
4754 DisplayDiffHunk::Unfolded {
4755 display_row_range,
4756 status,
4757 ..
4758 } => {
4759 if status.is_removed() && display_row_range.is_empty() {
4760 let row = display_row_range.start;
4761
4762 let offset = line_height / 2.;
4763 let start_y = row.as_f32() * line_height - offset - scroll_top;
4764 let end_y = start_y + line_height;
4765
4766 let width = (0.35 * line_height).floor();
4767 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4768 let highlight_size = size(width, end_y - start_y);
4769 Bounds::new(highlight_origin, highlight_size)
4770 } else {
4771 let start_row = display_row_range.start;
4772 let end_row = display_row_range.end;
4773 // If we're in a multibuffer, row range span might include an
4774 // excerpt header, so if we were to draw the marker straight away,
4775 // the hunk might include the rows of that header.
4776 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4777 // Instead, we simply check whether the range we're dealing with includes
4778 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4779 let end_row_in_current_excerpt = snapshot
4780 .blocks_in_range(start_row..end_row)
4781 .find_map(|(start_row, block)| {
4782 if matches!(block, Block::ExcerptBoundary { .. }) {
4783 Some(start_row)
4784 } else {
4785 None
4786 }
4787 })
4788 .unwrap_or(end_row);
4789
4790 let start_y = start_row.as_f32() * line_height - scroll_top;
4791 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4792
4793 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4794 let highlight_size = size(gutter_strip_width, end_y - start_y);
4795 Bounds::new(highlight_origin, highlight_size)
4796 }
4797 }
4798 }
4799 }
4800
4801 fn paint_gutter_indicators(
4802 &self,
4803 layout: &mut EditorLayout,
4804 window: &mut Window,
4805 cx: &mut App,
4806 ) {
4807 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4808 window.with_element_namespace("crease_toggles", |window| {
4809 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4810 crease_toggle.paint(window, cx);
4811 }
4812 });
4813
4814 for test_indicator in layout.test_indicators.iter_mut() {
4815 test_indicator.paint(window, cx);
4816 }
4817
4818 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4819 indicator.paint(window, cx);
4820 }
4821 });
4822 }
4823
4824 fn paint_gutter_highlights(
4825 &self,
4826 layout: &mut EditorLayout,
4827 window: &mut Window,
4828 cx: &mut App,
4829 ) {
4830 for (_, hunk_hitbox) in &layout.display_hunks {
4831 if let Some(hunk_hitbox) = hunk_hitbox {
4832 if !self
4833 .editor
4834 .read(cx)
4835 .buffer()
4836 .read(cx)
4837 .all_diff_hunks_expanded()
4838 {
4839 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4840 }
4841 }
4842 }
4843
4844 let show_git_gutter = layout
4845 .position_map
4846 .snapshot
4847 .show_git_diff_gutter
4848 .unwrap_or_else(|| {
4849 matches!(
4850 ProjectSettings::get_global(cx).git.git_gutter,
4851 Some(GitGutterSetting::TrackedFiles)
4852 )
4853 });
4854 if show_git_gutter {
4855 Self::paint_diff_hunk_gutter_indicators(layout, window, cx)
4856 }
4857
4858 let highlight_width = 0.275 * layout.position_map.line_height;
4859 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4860 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4861 for (range, color) in &layout.highlighted_gutter_ranges {
4862 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4863 layout.visible_display_row_range.start - DisplayRow(1)
4864 } else {
4865 range.start.row()
4866 };
4867 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4868 layout.visible_display_row_range.end + DisplayRow(1)
4869 } else {
4870 range.end.row()
4871 };
4872
4873 let start_y = layout.gutter_hitbox.top()
4874 + start_row.0 as f32 * layout.position_map.line_height
4875 - layout.position_map.scroll_pixel_position.y;
4876 let end_y = layout.gutter_hitbox.top()
4877 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4878 - layout.position_map.scroll_pixel_position.y;
4879 let bounds = Bounds::from_corners(
4880 point(layout.gutter_hitbox.left(), start_y),
4881 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4882 );
4883 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4884 }
4885 });
4886 }
4887
4888 fn paint_blamed_display_rows(
4889 &self,
4890 layout: &mut EditorLayout,
4891 window: &mut Window,
4892 cx: &mut App,
4893 ) {
4894 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4895 return;
4896 };
4897
4898 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4899 for mut blame_element in blamed_display_rows.into_iter() {
4900 blame_element.paint(window, cx);
4901 }
4902 })
4903 }
4904
4905 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4906 window.with_content_mask(
4907 Some(ContentMask {
4908 bounds: layout.position_map.text_hitbox.bounds,
4909 }),
4910 |window| {
4911 let cursor_style = if self
4912 .editor
4913 .read(cx)
4914 .hovered_link_state
4915 .as_ref()
4916 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4917 {
4918 CursorStyle::PointingHand
4919 } else {
4920 CursorStyle::IBeam
4921 };
4922 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4923
4924 let invisible_display_ranges = self.paint_highlights(layout, window);
4925 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4926 self.paint_redactions(layout, window);
4927 self.paint_cursors(layout, window, cx);
4928 self.paint_inline_blame(layout, window, cx);
4929 self.paint_diff_hunk_controls(layout, window, cx);
4930 window.with_element_namespace("crease_trailers", |window| {
4931 for trailer in layout.crease_trailers.iter_mut().flatten() {
4932 trailer.element.paint(window, cx);
4933 }
4934 });
4935 },
4936 )
4937 }
4938
4939 fn paint_highlights(
4940 &mut self,
4941 layout: &mut EditorLayout,
4942 window: &mut Window,
4943 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4944 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4945 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4946 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4947 for (range, color) in &layout.highlighted_ranges {
4948 self.paint_highlighted_range(
4949 range.clone(),
4950 *color,
4951 Pixels::ZERO,
4952 line_end_overshoot,
4953 layout,
4954 window,
4955 );
4956 }
4957
4958 let corner_radius = 0.15 * layout.position_map.line_height;
4959
4960 for (player_color, selections) in &layout.selections {
4961 for selection in selections.iter() {
4962 self.paint_highlighted_range(
4963 selection.range.clone(),
4964 player_color.selection,
4965 corner_radius,
4966 corner_radius * 2.,
4967 layout,
4968 window,
4969 );
4970
4971 if selection.is_local && !selection.range.is_empty() {
4972 invisible_display_ranges.push(selection.range.clone());
4973 }
4974 }
4975 }
4976 invisible_display_ranges
4977 })
4978 }
4979
4980 fn paint_lines(
4981 &mut self,
4982 invisible_display_ranges: &[Range<DisplayPoint>],
4983 layout: &mut EditorLayout,
4984 window: &mut Window,
4985 cx: &mut App,
4986 ) {
4987 let whitespace_setting = self
4988 .editor
4989 .read(cx)
4990 .buffer
4991 .read(cx)
4992 .settings_at(0, cx)
4993 .show_whitespaces;
4994
4995 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4996 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4997 line_with_invisibles.draw(
4998 layout,
4999 row,
5000 layout.content_origin,
5001 whitespace_setting,
5002 invisible_display_ranges,
5003 window,
5004 cx,
5005 )
5006 }
5007
5008 for line_element in &mut layout.line_elements {
5009 line_element.paint(window, cx);
5010 }
5011 }
5012
5013 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5014 if layout.redacted_ranges.is_empty() {
5015 return;
5016 }
5017
5018 let line_end_overshoot = layout.line_end_overshoot();
5019
5020 // A softer than perfect black
5021 let redaction_color = gpui::rgb(0x0e1111);
5022
5023 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5024 for range in layout.redacted_ranges.iter() {
5025 self.paint_highlighted_range(
5026 range.clone(),
5027 redaction_color.into(),
5028 Pixels::ZERO,
5029 line_end_overshoot,
5030 layout,
5031 window,
5032 );
5033 }
5034 });
5035 }
5036
5037 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5038 for cursor in &mut layout.visible_cursors {
5039 cursor.paint(layout.content_origin, window, cx);
5040 }
5041 }
5042
5043 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5044 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
5045
5046 if let Some(scrollbar_layout) = scrollbar_x {
5047 let hitbox = scrollbar_layout.hitbox.clone();
5048 let text_unit_size = scrollbar_layout.text_unit_size;
5049 let visible_range = scrollbar_layout.visible_range.clone();
5050 let thumb_bounds = scrollbar_layout.thumb_bounds();
5051
5052 if scrollbar_layout.visible {
5053 window.paint_layer(hitbox.bounds, |window| {
5054 window.paint_quad(quad(
5055 hitbox.bounds,
5056 Corners::default(),
5057 cx.theme().colors().scrollbar_track_background,
5058 Edges {
5059 top: Pixels::ZERO,
5060 right: Pixels::ZERO,
5061 bottom: Pixels::ZERO,
5062 left: Pixels::ZERO,
5063 },
5064 cx.theme().colors().scrollbar_track_border,
5065 ));
5066
5067 window.paint_quad(quad(
5068 thumb_bounds,
5069 Corners::default(),
5070 cx.theme().colors().scrollbar_thumb_background,
5071 Edges {
5072 top: Pixels::ZERO,
5073 right: Pixels::ZERO,
5074 bottom: Pixels::ZERO,
5075 left: ScrollbarLayout::BORDER_WIDTH,
5076 },
5077 cx.theme().colors().scrollbar_thumb_border,
5078 ));
5079 })
5080 }
5081
5082 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5083
5084 window.on_mouse_event({
5085 let editor = self.editor.clone();
5086
5087 // there may be a way to avoid this clone
5088 let hitbox = hitbox.clone();
5089
5090 let mut mouse_position = window.mouse_position();
5091 move |event: &MouseMoveEvent, phase, window, cx| {
5092 if phase == DispatchPhase::Capture {
5093 return;
5094 }
5095
5096 editor.update(cx, |editor, cx| {
5097 if event.pressed_button == Some(MouseButton::Left)
5098 && editor
5099 .scroll_manager
5100 .is_dragging_scrollbar(Axis::Horizontal)
5101 {
5102 let x = mouse_position.x;
5103 let new_x = event.position.x;
5104 if (hitbox.left()..hitbox.right()).contains(&x) {
5105 let mut position = editor.scroll_position(cx);
5106
5107 position.x += (new_x - x) / text_unit_size;
5108 if position.x < 0.0 {
5109 position.x = 0.0;
5110 }
5111 editor.set_scroll_position(position, window, cx);
5112 }
5113
5114 cx.stop_propagation();
5115 } else {
5116 editor.scroll_manager.set_is_dragging_scrollbar(
5117 Axis::Horizontal,
5118 false,
5119 cx,
5120 );
5121
5122 if hitbox.is_hovered(window) {
5123 editor.scroll_manager.show_scrollbar(window, cx);
5124 }
5125 }
5126 mouse_position = event.position;
5127 })
5128 }
5129 });
5130
5131 if self
5132 .editor
5133 .read(cx)
5134 .scroll_manager
5135 .is_dragging_scrollbar(Axis::Horizontal)
5136 {
5137 window.on_mouse_event({
5138 let editor = self.editor.clone();
5139 move |_: &MouseUpEvent, phase, _, cx| {
5140 if phase == DispatchPhase::Capture {
5141 return;
5142 }
5143
5144 editor.update(cx, |editor, cx| {
5145 editor.scroll_manager.set_is_dragging_scrollbar(
5146 Axis::Horizontal,
5147 false,
5148 cx,
5149 );
5150 cx.stop_propagation();
5151 });
5152 }
5153 });
5154 } else {
5155 window.on_mouse_event({
5156 let editor = self.editor.clone();
5157
5158 move |event: &MouseDownEvent, phase, window, cx| {
5159 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5160 return;
5161 }
5162
5163 editor.update(cx, |editor, cx| {
5164 editor.scroll_manager.set_is_dragging_scrollbar(
5165 Axis::Horizontal,
5166 true,
5167 cx,
5168 );
5169
5170 let x = event.position.x;
5171
5172 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5173 let center_row =
5174 ((x - hitbox.left()) / text_unit_size).round() as u32;
5175 let top_row = center_row.saturating_sub(
5176 (visible_range.end - visible_range.start) as u32 / 2,
5177 );
5178
5179 let mut position = editor.scroll_position(cx);
5180 position.x = top_row as f32;
5181
5182 editor.set_scroll_position(position, window, cx);
5183 } else {
5184 editor.scroll_manager.show_scrollbar(window, cx);
5185 }
5186
5187 cx.stop_propagation();
5188 });
5189 }
5190 });
5191 }
5192 }
5193
5194 if let Some(scrollbar_layout) = scrollbar_y {
5195 let hitbox = scrollbar_layout.hitbox.clone();
5196 let text_unit_size = scrollbar_layout.text_unit_size;
5197 let visible_range = scrollbar_layout.visible_range.clone();
5198 let thumb_bounds = scrollbar_layout.thumb_bounds();
5199
5200 if scrollbar_layout.visible {
5201 window.paint_layer(hitbox.bounds, |window| {
5202 window.paint_quad(quad(
5203 hitbox.bounds,
5204 Corners::default(),
5205 cx.theme().colors().scrollbar_track_background,
5206 Edges {
5207 top: Pixels::ZERO,
5208 right: Pixels::ZERO,
5209 bottom: Pixels::ZERO,
5210 left: ScrollbarLayout::BORDER_WIDTH,
5211 },
5212 cx.theme().colors().scrollbar_track_border,
5213 ));
5214
5215 let fast_markers =
5216 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5217 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5218 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5219
5220 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5221 for marker in markers.iter().chain(&fast_markers) {
5222 let mut marker = marker.clone();
5223 marker.bounds.origin += hitbox.origin;
5224 window.paint_quad(marker);
5225 }
5226
5227 window.paint_quad(quad(
5228 thumb_bounds,
5229 Corners::default(),
5230 cx.theme().colors().scrollbar_thumb_background,
5231 Edges {
5232 top: Pixels::ZERO,
5233 right: Pixels::ZERO,
5234 bottom: Pixels::ZERO,
5235 left: ScrollbarLayout::BORDER_WIDTH,
5236 },
5237 cx.theme().colors().scrollbar_thumb_border,
5238 ));
5239 });
5240 }
5241
5242 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5243
5244 window.on_mouse_event({
5245 let editor = self.editor.clone();
5246
5247 let hitbox = hitbox.clone();
5248
5249 let mut mouse_position = window.mouse_position();
5250 move |event: &MouseMoveEvent, phase, window, cx| {
5251 if phase == DispatchPhase::Capture {
5252 return;
5253 }
5254
5255 editor.update(cx, |editor, cx| {
5256 if event.pressed_button == Some(MouseButton::Left)
5257 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5258 {
5259 let y = mouse_position.y;
5260 let new_y = event.position.y;
5261 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5262 let mut position = editor.scroll_position(cx);
5263 position.y += (new_y - y) / text_unit_size;
5264 if position.y < 0.0 {
5265 position.y = 0.0;
5266 }
5267 editor.set_scroll_position(position, window, cx);
5268 }
5269 } else {
5270 editor.scroll_manager.set_is_dragging_scrollbar(
5271 Axis::Vertical,
5272 false,
5273 cx,
5274 );
5275
5276 if hitbox.is_hovered(window) {
5277 editor.scroll_manager.show_scrollbar(window, cx);
5278 }
5279 }
5280 mouse_position = event.position;
5281 })
5282 }
5283 });
5284
5285 if self
5286 .editor
5287 .read(cx)
5288 .scroll_manager
5289 .is_dragging_scrollbar(Axis::Vertical)
5290 {
5291 window.on_mouse_event({
5292 let editor = self.editor.clone();
5293 move |_: &MouseUpEvent, phase, _, cx| {
5294 if phase == DispatchPhase::Capture {
5295 return;
5296 }
5297
5298 editor.update(cx, |editor, cx| {
5299 editor.scroll_manager.set_is_dragging_scrollbar(
5300 Axis::Vertical,
5301 false,
5302 cx,
5303 );
5304 cx.stop_propagation();
5305 });
5306 }
5307 });
5308 } else {
5309 window.on_mouse_event({
5310 let editor = self.editor.clone();
5311
5312 move |event: &MouseDownEvent, phase, window, cx| {
5313 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5314 return;
5315 }
5316
5317 editor.update(cx, |editor, cx| {
5318 editor.scroll_manager.set_is_dragging_scrollbar(
5319 Axis::Vertical,
5320 true,
5321 cx,
5322 );
5323
5324 let y = event.position.y;
5325 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5326 let center_row =
5327 ((y - hitbox.top()) / text_unit_size).round() as u32;
5328 let top_row = center_row.saturating_sub(
5329 (visible_range.end - visible_range.start) as u32 / 2,
5330 );
5331 let mut position = editor.scroll_position(cx);
5332 position.y = top_row as f32;
5333 editor.set_scroll_position(position, window, cx);
5334 } else {
5335 editor.scroll_manager.show_scrollbar(window, cx);
5336 }
5337
5338 cx.stop_propagation();
5339 });
5340 }
5341 });
5342 }
5343 }
5344 }
5345
5346 fn collect_fast_scrollbar_markers(
5347 &self,
5348 layout: &EditorLayout,
5349 scrollbar_layout: &ScrollbarLayout,
5350 cx: &mut App,
5351 ) -> Vec<PaintQuad> {
5352 const LIMIT: usize = 100;
5353 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5354 return vec![];
5355 }
5356 let cursor_ranges = layout
5357 .cursors
5358 .iter()
5359 .map(|(point, color)| ColoredRange {
5360 start: point.row(),
5361 end: point.row(),
5362 color: *color,
5363 })
5364 .collect_vec();
5365 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5366 }
5367
5368 fn refresh_slow_scrollbar_markers(
5369 &self,
5370 layout: &EditorLayout,
5371 scrollbar_layout: &ScrollbarLayout,
5372 window: &mut Window,
5373 cx: &mut App,
5374 ) {
5375 self.editor.update(cx, |editor, cx| {
5376 if !editor.is_singleton(cx)
5377 || !editor
5378 .scrollbar_marker_state
5379 .should_refresh(scrollbar_layout.hitbox.size)
5380 {
5381 return;
5382 }
5383
5384 let scrollbar_layout = scrollbar_layout.clone();
5385 let background_highlights = editor.background_highlights.clone();
5386 let snapshot = layout.position_map.snapshot.clone();
5387 let theme = cx.theme().clone();
5388 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5389
5390 editor.scrollbar_marker_state.dirty = false;
5391 editor.scrollbar_marker_state.pending_refresh =
5392 Some(cx.spawn_in(window, |editor, mut cx| async move {
5393 let scrollbar_size = scrollbar_layout.hitbox.size;
5394 let scrollbar_markers = cx
5395 .background_executor()
5396 .spawn(async move {
5397 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5398 let mut marker_quads = Vec::new();
5399 if scrollbar_settings.git_diff {
5400 let marker_row_ranges =
5401 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5402 let start_display_row =
5403 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5404 .to_display_point(&snapshot.display_snapshot)
5405 .row();
5406 let mut end_display_row =
5407 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5408 .to_display_point(&snapshot.display_snapshot)
5409 .row();
5410 if end_display_row != start_display_row {
5411 end_display_row.0 -= 1;
5412 }
5413 let color = match &hunk.status() {
5414 DiffHunkStatus::Added(_) => {
5415 theme.colors().version_control_added
5416 }
5417 DiffHunkStatus::Modified(_) => {
5418 theme.colors().version_control_modified
5419 }
5420 DiffHunkStatus::Removed(_) => {
5421 theme.colors().version_control_deleted
5422 }
5423 };
5424 ColoredRange {
5425 start: start_display_row,
5426 end: end_display_row,
5427 color,
5428 }
5429 });
5430
5431 marker_quads.extend(
5432 scrollbar_layout
5433 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5434 );
5435 }
5436
5437 for (background_highlight_id, (_, background_ranges)) in
5438 background_highlights.iter()
5439 {
5440 let is_search_highlights = *background_highlight_id
5441 == TypeId::of::<BufferSearchHighlights>();
5442 let is_symbol_occurrences = *background_highlight_id
5443 == TypeId::of::<DocumentHighlightRead>()
5444 || *background_highlight_id
5445 == TypeId::of::<DocumentHighlightWrite>();
5446 if (is_search_highlights && scrollbar_settings.search_results)
5447 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5448 {
5449 let mut color = theme.status().info;
5450 if is_symbol_occurrences {
5451 color.fade_out(0.5);
5452 }
5453 let marker_row_ranges = background_ranges.iter().map(|range| {
5454 let display_start = range
5455 .start
5456 .to_display_point(&snapshot.display_snapshot);
5457 let display_end =
5458 range.end.to_display_point(&snapshot.display_snapshot);
5459 ColoredRange {
5460 start: display_start.row(),
5461 end: display_end.row(),
5462 color,
5463 }
5464 });
5465 marker_quads.extend(
5466 scrollbar_layout
5467 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5468 );
5469 }
5470 }
5471
5472 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5473 let diagnostics = snapshot
5474 .buffer_snapshot
5475 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5476 // Don't show diagnostics the user doesn't care about
5477 .filter(|diagnostic| {
5478 match (
5479 scrollbar_settings.diagnostics,
5480 diagnostic.diagnostic.severity,
5481 ) {
5482 (ScrollbarDiagnostics::All, _) => true,
5483 (
5484 ScrollbarDiagnostics::Error,
5485 DiagnosticSeverity::ERROR,
5486 ) => true,
5487 (
5488 ScrollbarDiagnostics::Warning,
5489 DiagnosticSeverity::ERROR
5490 | DiagnosticSeverity::WARNING,
5491 ) => true,
5492 (
5493 ScrollbarDiagnostics::Information,
5494 DiagnosticSeverity::ERROR
5495 | DiagnosticSeverity::WARNING
5496 | DiagnosticSeverity::INFORMATION,
5497 ) => true,
5498 (_, _) => false,
5499 }
5500 })
5501 // We want to sort by severity, in order to paint the most severe diagnostics last.
5502 .sorted_by_key(|diagnostic| {
5503 std::cmp::Reverse(diagnostic.diagnostic.severity)
5504 });
5505
5506 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5507 let start_display = diagnostic
5508 .range
5509 .start
5510 .to_display_point(&snapshot.display_snapshot);
5511 let end_display = diagnostic
5512 .range
5513 .end
5514 .to_display_point(&snapshot.display_snapshot);
5515 let color = match diagnostic.diagnostic.severity {
5516 DiagnosticSeverity::ERROR => theme.status().error,
5517 DiagnosticSeverity::WARNING => theme.status().warning,
5518 DiagnosticSeverity::INFORMATION => theme.status().info,
5519 _ => theme.status().hint,
5520 };
5521 ColoredRange {
5522 start: start_display.row(),
5523 end: end_display.row(),
5524 color,
5525 }
5526 });
5527 marker_quads.extend(
5528 scrollbar_layout
5529 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5530 );
5531 }
5532
5533 Arc::from(marker_quads)
5534 })
5535 .await;
5536
5537 editor.update(&mut cx, |editor, cx| {
5538 editor.scrollbar_marker_state.markers = scrollbar_markers;
5539 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5540 editor.scrollbar_marker_state.pending_refresh = None;
5541 cx.notify();
5542 })?;
5543
5544 Ok(())
5545 }));
5546 });
5547 }
5548
5549 #[allow(clippy::too_many_arguments)]
5550 fn paint_highlighted_range(
5551 &self,
5552 range: Range<DisplayPoint>,
5553 color: Hsla,
5554 corner_radius: Pixels,
5555 line_end_overshoot: Pixels,
5556 layout: &EditorLayout,
5557 window: &mut Window,
5558 ) {
5559 let start_row = layout.visible_display_row_range.start;
5560 let end_row = layout.visible_display_row_range.end;
5561 if range.start != range.end {
5562 let row_range = if range.end.column() == 0 {
5563 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5564 } else {
5565 cmp::max(range.start.row(), start_row)
5566 ..cmp::min(range.end.row().next_row(), end_row)
5567 };
5568
5569 let highlighted_range = HighlightedRange {
5570 color,
5571 line_height: layout.position_map.line_height,
5572 corner_radius,
5573 start_y: layout.content_origin.y
5574 + row_range.start.as_f32() * layout.position_map.line_height
5575 - layout.position_map.scroll_pixel_position.y,
5576 lines: row_range
5577 .iter_rows()
5578 .map(|row| {
5579 let line_layout =
5580 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5581 HighlightedRangeLine {
5582 start_x: if row == range.start.row() {
5583 layout.content_origin.x
5584 + line_layout.x_for_index(range.start.column() as usize)
5585 - layout.position_map.scroll_pixel_position.x
5586 } else {
5587 layout.content_origin.x
5588 - layout.position_map.scroll_pixel_position.x
5589 },
5590 end_x: if row == range.end.row() {
5591 layout.content_origin.x
5592 + line_layout.x_for_index(range.end.column() as usize)
5593 - layout.position_map.scroll_pixel_position.x
5594 } else {
5595 layout.content_origin.x + line_layout.width + line_end_overshoot
5596 - layout.position_map.scroll_pixel_position.x
5597 },
5598 }
5599 })
5600 .collect(),
5601 };
5602
5603 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5604 }
5605 }
5606
5607 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5608 if let Some(mut inline_blame) = layout.inline_blame.take() {
5609 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5610 inline_blame.paint(window, cx);
5611 })
5612 }
5613 }
5614
5615 fn paint_diff_hunk_controls(
5616 &mut self,
5617 layout: &mut EditorLayout,
5618 window: &mut Window,
5619 cx: &mut App,
5620 ) {
5621 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5622 diff_hunk_control.paint(window, cx);
5623 }
5624 }
5625
5626 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5627 for mut block in layout.blocks.drain(..) {
5628 block.element.paint(window, cx);
5629 }
5630 }
5631
5632 fn paint_inline_completion_popover(
5633 &mut self,
5634 layout: &mut EditorLayout,
5635 window: &mut Window,
5636 cx: &mut App,
5637 ) {
5638 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5639 inline_completion_popover.paint(window, cx);
5640 }
5641 }
5642
5643 fn paint_mouse_context_menu(
5644 &mut self,
5645 layout: &mut EditorLayout,
5646 window: &mut Window,
5647 cx: &mut App,
5648 ) {
5649 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5650 mouse_context_menu.paint(window, cx);
5651 }
5652 }
5653
5654 fn paint_scroll_wheel_listener(
5655 &mut self,
5656 layout: &EditorLayout,
5657 window: &mut Window,
5658 cx: &mut App,
5659 ) {
5660 window.on_mouse_event({
5661 let position_map = layout.position_map.clone();
5662 let editor = self.editor.clone();
5663 let hitbox = layout.hitbox.clone();
5664 let mut delta = ScrollDelta::default();
5665
5666 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5667 // accidentally turn off their scrolling.
5668 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5669
5670 move |event: &ScrollWheelEvent, phase, window, cx| {
5671 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5672 delta = delta.coalesce(event.delta);
5673 editor.update(cx, |editor, cx| {
5674 let position_map: &PositionMap = &position_map;
5675
5676 let line_height = position_map.line_height;
5677 let max_glyph_width = position_map.em_width;
5678 let (delta, axis) = match delta {
5679 gpui::ScrollDelta::Pixels(mut pixels) => {
5680 //Trackpad
5681 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5682 (pixels, axis)
5683 }
5684
5685 gpui::ScrollDelta::Lines(lines) => {
5686 //Not trackpad
5687 let pixels =
5688 point(lines.x * max_glyph_width, lines.y * line_height);
5689 (pixels, None)
5690 }
5691 };
5692
5693 let current_scroll_position = position_map.snapshot.scroll_position();
5694 let x = (current_scroll_position.x * max_glyph_width
5695 - (delta.x * scroll_sensitivity))
5696 / max_glyph_width;
5697 let y = (current_scroll_position.y * line_height
5698 - (delta.y * scroll_sensitivity))
5699 / line_height;
5700 let mut scroll_position =
5701 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5702 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5703 if forbid_vertical_scroll {
5704 scroll_position.y = current_scroll_position.y;
5705 }
5706
5707 if scroll_position != current_scroll_position {
5708 editor.scroll(scroll_position, axis, window, cx);
5709 cx.stop_propagation();
5710 } else if y < 0. {
5711 // Due to clamping, we may fail to detect cases of overscroll to the top;
5712 // We want the scroll manager to get an update in such cases and detect the change of direction
5713 // on the next frame.
5714 cx.notify();
5715 }
5716 });
5717 }
5718 }
5719 });
5720 }
5721
5722 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5723 self.paint_scroll_wheel_listener(layout, window, cx);
5724
5725 window.on_mouse_event({
5726 let position_map = layout.position_map.clone();
5727 let editor = self.editor.clone();
5728 let diff_hunk_range =
5729 layout
5730 .display_hunks
5731 .iter()
5732 .find_map(|(hunk, hunk_hitbox)| match hunk {
5733 DisplayDiffHunk::Folded { .. } => None,
5734 DisplayDiffHunk::Unfolded {
5735 multi_buffer_range, ..
5736 } => {
5737 if hunk_hitbox
5738 .as_ref()
5739 .map(|hitbox| hitbox.is_hovered(window))
5740 .unwrap_or(false)
5741 {
5742 Some(multi_buffer_range.clone())
5743 } else {
5744 None
5745 }
5746 }
5747 });
5748 let line_numbers = layout.line_numbers.clone();
5749
5750 move |event: &MouseDownEvent, phase, window, cx| {
5751 if phase == DispatchPhase::Bubble {
5752 match event.button {
5753 MouseButton::Left => editor.update(cx, |editor, cx| {
5754 let pending_mouse_down = editor
5755 .pending_mouse_down
5756 .get_or_insert_with(Default::default)
5757 .clone();
5758
5759 *pending_mouse_down.borrow_mut() = Some(event.clone());
5760
5761 Self::mouse_left_down(
5762 editor,
5763 event,
5764 diff_hunk_range.clone(),
5765 &position_map,
5766 line_numbers.as_ref(),
5767 window,
5768 cx,
5769 );
5770 }),
5771 MouseButton::Right => editor.update(cx, |editor, cx| {
5772 Self::mouse_right_down(editor, event, &position_map, window, cx);
5773 }),
5774 MouseButton::Middle => editor.update(cx, |editor, cx| {
5775 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5776 }),
5777 _ => {}
5778 };
5779 }
5780 }
5781 });
5782
5783 window.on_mouse_event({
5784 let editor = self.editor.clone();
5785 let position_map = layout.position_map.clone();
5786
5787 move |event: &MouseUpEvent, phase, window, cx| {
5788 if phase == DispatchPhase::Bubble {
5789 editor.update(cx, |editor, cx| {
5790 Self::mouse_up(editor, event, &position_map, window, cx)
5791 });
5792 }
5793 }
5794 });
5795
5796 window.on_mouse_event({
5797 let editor = self.editor.clone();
5798 let position_map = layout.position_map.clone();
5799 let mut captured_mouse_down = None;
5800
5801 move |event: &MouseUpEvent, phase, window, cx| match phase {
5802 // Clear the pending mouse down during the capture phase,
5803 // so that it happens even if another event handler stops
5804 // propagation.
5805 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5806 let pending_mouse_down = editor
5807 .pending_mouse_down
5808 .get_or_insert_with(Default::default)
5809 .clone();
5810
5811 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5812 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5813 captured_mouse_down = pending_mouse_down.take();
5814 window.refresh();
5815 }
5816 }),
5817 // Fire click handlers during the bubble phase.
5818 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5819 if let Some(mouse_down) = captured_mouse_down.take() {
5820 let event = ClickEvent {
5821 down: mouse_down,
5822 up: event.clone(),
5823 };
5824 Self::click(editor, &event, &position_map, window, cx);
5825 }
5826 }),
5827 }
5828 });
5829
5830 window.on_mouse_event({
5831 let position_map = layout.position_map.clone();
5832 let editor = self.editor.clone();
5833
5834 move |event: &MouseMoveEvent, phase, window, cx| {
5835 if phase == DispatchPhase::Bubble {
5836 editor.update(cx, |editor, cx| {
5837 if editor.hover_state.focused(window, cx) {
5838 return;
5839 }
5840 if event.pressed_button == Some(MouseButton::Left)
5841 || event.pressed_button == Some(MouseButton::Middle)
5842 {
5843 Self::mouse_dragged(editor, event, &position_map, window, cx)
5844 }
5845
5846 Self::mouse_moved(editor, event, &position_map, window, cx)
5847 });
5848 }
5849 }
5850 });
5851 }
5852
5853 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5854 bounds.top_right().x - self.style.scrollbar_width
5855 }
5856
5857 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5858 let style = &self.style;
5859 let font_size = style.text.font_size.to_pixels(window.rem_size());
5860 let layout = window
5861 .text_system()
5862 .shape_line(
5863 SharedString::from(" ".repeat(column)),
5864 font_size,
5865 &[TextRun {
5866 len: column,
5867 font: style.text.font(),
5868 color: Hsla::default(),
5869 background_color: None,
5870 underline: None,
5871 strikethrough: None,
5872 }],
5873 )
5874 .unwrap();
5875
5876 layout.width
5877 }
5878
5879 fn max_line_number_width(
5880 &self,
5881 snapshot: &EditorSnapshot,
5882 window: &mut Window,
5883 cx: &mut App,
5884 ) -> Pixels {
5885 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5886 self.column_pixels(digit_count, window, cx)
5887 }
5888
5889 fn shape_line_number(
5890 &self,
5891 text: SharedString,
5892 color: Hsla,
5893 window: &mut Window,
5894 ) -> anyhow::Result<ShapedLine> {
5895 let run = TextRun {
5896 len: text.len(),
5897 font: self.style.text.font(),
5898 color,
5899 background_color: None,
5900 underline: None,
5901 strikethrough: None,
5902 };
5903 window.text_system().shape_line(
5904 text,
5905 self.style.text.font_size.to_pixels(window.rem_size()),
5906 &[run],
5907 )
5908 }
5909}
5910
5911fn header_jump_data(
5912 snapshot: &EditorSnapshot,
5913 block_row_start: DisplayRow,
5914 height: u32,
5915 for_excerpt: &ExcerptInfo,
5916) -> JumpData {
5917 let range = &for_excerpt.range;
5918 let buffer = &for_excerpt.buffer;
5919 let jump_anchor = range
5920 .primary
5921 .as_ref()
5922 .map_or(range.context.start, |primary| primary.start);
5923
5924 let excerpt_start = range.context.start;
5925 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5926 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5927 0
5928 } else {
5929 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5930 jump_position.row.saturating_sub(excerpt_start_point.row)
5931 };
5932
5933 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5934 .saturating_sub(
5935 snapshot
5936 .scroll_anchor
5937 .scroll_position(&snapshot.display_snapshot)
5938 .y as u32,
5939 );
5940
5941 JumpData::MultiBufferPoint {
5942 excerpt_id: for_excerpt.id,
5943 anchor: jump_anchor,
5944 position: jump_position,
5945 line_offset_from_top,
5946 }
5947}
5948
5949pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5950
5951impl AcceptEditPredictionBinding {
5952 pub fn keystroke(&self) -> Option<&Keystroke> {
5953 if let Some(binding) = self.0.as_ref() {
5954 match &binding.keystrokes() {
5955 [keystroke] => Some(keystroke),
5956 _ => None,
5957 }
5958 } else {
5959 None
5960 }
5961 }
5962}
5963
5964#[allow(clippy::too_many_arguments)]
5965fn prepaint_gutter_button(
5966 button: IconButton,
5967 row: DisplayRow,
5968 line_height: Pixels,
5969 gutter_dimensions: &GutterDimensions,
5970 scroll_pixel_position: gpui::Point<Pixels>,
5971 gutter_hitbox: &Hitbox,
5972 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5973 window: &mut Window,
5974 cx: &mut App,
5975) -> AnyElement {
5976 let mut button = button.into_any_element();
5977 let available_space = size(
5978 AvailableSpace::MinContent,
5979 AvailableSpace::Definite(line_height),
5980 );
5981 let indicator_size = button.layout_as_root(available_space, window, cx);
5982
5983 let blame_width = gutter_dimensions.git_blame_entries_width;
5984 let gutter_width = rows_with_hunk_bounds
5985 .get(&row)
5986 .map(|bounds| bounds.size.width);
5987 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5988
5989 let mut x = left_offset;
5990 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5991 - indicator_size.width
5992 - left_offset;
5993 x += available_width / 2.;
5994
5995 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5996 y += (line_height - indicator_size.height) / 2.;
5997
5998 button.prepaint_as_root(
5999 gutter_hitbox.origin + point(x, y),
6000 available_space,
6001 window,
6002 cx,
6003 );
6004 button
6005}
6006
6007fn render_inline_blame_entry(
6008 blame: &gpui::Entity<GitBlame>,
6009 blame_entry: BlameEntry,
6010 style: &EditorStyle,
6011 workspace: Option<WeakEntity<Workspace>>,
6012 cx: &mut App,
6013) -> AnyElement {
6014 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
6015
6016 let author = blame_entry.author.as_deref().unwrap_or_default();
6017 let summary_enabled = ProjectSettings::get_global(cx)
6018 .git
6019 .show_inline_commit_summary();
6020
6021 let text = match blame_entry.summary.as_ref() {
6022 Some(summary) if summary_enabled => {
6023 format!("{}, {} - {}", author, relative_timestamp, summary)
6024 }
6025 _ => format!("{}, {}", author, relative_timestamp),
6026 };
6027
6028 let details = blame.read(cx).details_for_entry(&blame_entry);
6029
6030 let tooltip =
6031 cx.new(|_| CommitTooltip::blame_entry(blame_entry, details, style.clone(), workspace));
6032
6033 h_flex()
6034 .id("inline-blame")
6035 .w_full()
6036 .font_family(style.text.font().family)
6037 .text_color(cx.theme().status().hint)
6038 .line_height(style.text.line_height)
6039 .child(Icon::new(IconName::FileGit).color(Color::Hint))
6040 .child(text)
6041 .gap_2()
6042 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6043 .into_any()
6044}
6045
6046fn render_blame_entry(
6047 ix: usize,
6048 blame: &gpui::Entity<GitBlame>,
6049 blame_entry: BlameEntry,
6050 style: &EditorStyle,
6051 last_used_color: &mut Option<(PlayerColor, Oid)>,
6052 editor: Entity<Editor>,
6053 cx: &mut App,
6054) -> AnyElement {
6055 let mut sha_color = cx
6056 .theme()
6057 .players()
6058 .color_for_participant(blame_entry.sha.into());
6059 // If the last color we used is the same as the one we get for this line, but
6060 // the commit SHAs are different, then we try again to get a different color.
6061 match *last_used_color {
6062 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
6063 let index: u32 = blame_entry.sha.into();
6064 sha_color = cx.theme().players().color_for_participant(index + 1);
6065 }
6066 _ => {}
6067 };
6068 last_used_color.replace((sha_color, blame_entry.sha));
6069
6070 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
6071
6072 let short_commit_id = blame_entry.sha.display_short();
6073
6074 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
6075 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
6076
6077 let details = blame.read(cx).details_for_entry(&blame_entry);
6078
6079 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
6080
6081 let tooltip = cx.new(|_| {
6082 CommitTooltip::blame_entry(
6083 blame_entry.clone(),
6084 details.clone(),
6085 style.clone(),
6086 workspace,
6087 )
6088 });
6089
6090 h_flex()
6091 .w_full()
6092 .justify_between()
6093 .font_family(style.text.font().family)
6094 .line_height(style.text.line_height)
6095 .id(("blame", ix))
6096 .text_color(cx.theme().status().hint)
6097 .pr_2()
6098 .gap_2()
6099 .child(
6100 h_flex()
6101 .items_center()
6102 .gap_2()
6103 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6104 .child(name),
6105 )
6106 .child(relative_timestamp)
6107 .on_mouse_down(MouseButton::Right, {
6108 let blame_entry = blame_entry.clone();
6109 let details = details.clone();
6110 move |event, window, cx| {
6111 deploy_blame_entry_context_menu(
6112 &blame_entry,
6113 details.as_ref(),
6114 editor.clone(),
6115 event.position,
6116 window,
6117 cx,
6118 );
6119 }
6120 })
6121 .hover(|style| style.bg(cx.theme().colors().element_hover))
6122 .when_some(
6123 details.and_then(|details| details.permalink),
6124 |this, url| {
6125 let url = url.clone();
6126 this.cursor_pointer().on_click(move |_, _, cx| {
6127 cx.stop_propagation();
6128 cx.open_url(url.as_str())
6129 })
6130 },
6131 )
6132 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6133 .into_any()
6134}
6135
6136fn deploy_blame_entry_context_menu(
6137 blame_entry: &BlameEntry,
6138 details: Option<&ParsedCommitMessage>,
6139 editor: Entity<Editor>,
6140 position: gpui::Point<Pixels>,
6141 window: &mut Window,
6142 cx: &mut App,
6143) {
6144 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6145 let sha = format!("{}", blame_entry.sha);
6146 menu.on_blur_subscription(Subscription::new(|| {}))
6147 .entry("Copy commit SHA", None, move |_, cx| {
6148 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6149 })
6150 .when_some(
6151 details.and_then(|details| details.permalink.clone()),
6152 |this, url| {
6153 this.entry("Open permalink", None, move |_, cx| {
6154 cx.open_url(url.as_str())
6155 })
6156 },
6157 )
6158 });
6159
6160 editor.update(cx, move |editor, cx| {
6161 editor.mouse_context_menu = Some(MouseContextMenu::new(
6162 MenuPosition::PinnedToScreen(position),
6163 context_menu,
6164 window,
6165 cx,
6166 ));
6167 cx.notify();
6168 });
6169}
6170
6171#[derive(Debug)]
6172pub(crate) struct LineWithInvisibles {
6173 fragments: SmallVec<[LineFragment; 1]>,
6174 invisibles: Vec<Invisible>,
6175 len: usize,
6176 width: Pixels,
6177 font_size: Pixels,
6178}
6179
6180#[allow(clippy::large_enum_variant)]
6181enum LineFragment {
6182 Text(ShapedLine),
6183 Element {
6184 element: Option<AnyElement>,
6185 size: Size<Pixels>,
6186 len: usize,
6187 },
6188}
6189
6190impl fmt::Debug for LineFragment {
6191 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6192 match self {
6193 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6194 LineFragment::Element { size, len, .. } => f
6195 .debug_struct("Element")
6196 .field("size", size)
6197 .field("len", len)
6198 .finish(),
6199 }
6200 }
6201}
6202
6203impl LineWithInvisibles {
6204 #[allow(clippy::too_many_arguments)]
6205 fn from_chunks<'a>(
6206 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6207 editor_style: &EditorStyle,
6208 max_line_len: usize,
6209 max_line_count: usize,
6210 editor_mode: EditorMode,
6211 text_width: Pixels,
6212 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6213 window: &mut Window,
6214 cx: &mut App,
6215 ) -> Vec<Self> {
6216 let text_style = &editor_style.text;
6217 let mut layouts = Vec::with_capacity(max_line_count);
6218 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6219 let mut line = String::new();
6220 let mut invisibles = Vec::new();
6221 let mut width = Pixels::ZERO;
6222 let mut len = 0;
6223 let mut styles = Vec::new();
6224 let mut non_whitespace_added = false;
6225 let mut row = 0;
6226 let mut line_exceeded_max_len = false;
6227 let font_size = text_style.font_size.to_pixels(window.rem_size());
6228
6229 let ellipsis = SharedString::from("⋯");
6230
6231 for highlighted_chunk in chunks.chain([HighlightedChunk {
6232 text: "\n",
6233 style: None,
6234 is_tab: false,
6235 replacement: None,
6236 }]) {
6237 if let Some(replacement) = highlighted_chunk.replacement {
6238 if !line.is_empty() {
6239 let shaped_line = window
6240 .text_system()
6241 .shape_line(line.clone().into(), font_size, &styles)
6242 .unwrap();
6243 width += shaped_line.width;
6244 len += shaped_line.len;
6245 fragments.push(LineFragment::Text(shaped_line));
6246 line.clear();
6247 styles.clear();
6248 }
6249
6250 match replacement {
6251 ChunkReplacement::Renderer(renderer) => {
6252 let available_width = if renderer.constrain_width {
6253 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6254 ellipsis.clone()
6255 } else {
6256 SharedString::from(Arc::from(highlighted_chunk.text))
6257 };
6258 let shaped_line = window
6259 .text_system()
6260 .shape_line(
6261 chunk,
6262 font_size,
6263 &[text_style.to_run(highlighted_chunk.text.len())],
6264 )
6265 .unwrap();
6266 AvailableSpace::Definite(shaped_line.width)
6267 } else {
6268 AvailableSpace::MinContent
6269 };
6270
6271 let mut element = (renderer.render)(&mut ChunkRendererContext {
6272 context: cx,
6273 window,
6274 max_width: text_width,
6275 });
6276 let line_height = text_style.line_height_in_pixels(window.rem_size());
6277 let size = element.layout_as_root(
6278 size(available_width, AvailableSpace::Definite(line_height)),
6279 window,
6280 cx,
6281 );
6282
6283 width += size.width;
6284 len += highlighted_chunk.text.len();
6285 fragments.push(LineFragment::Element {
6286 element: Some(element),
6287 size,
6288 len: highlighted_chunk.text.len(),
6289 });
6290 }
6291 ChunkReplacement::Str(x) => {
6292 let text_style = if let Some(style) = highlighted_chunk.style {
6293 Cow::Owned(text_style.clone().highlight(style))
6294 } else {
6295 Cow::Borrowed(text_style)
6296 };
6297
6298 let run = TextRun {
6299 len: x.len(),
6300 font: text_style.font(),
6301 color: text_style.color,
6302 background_color: text_style.background_color,
6303 underline: text_style.underline,
6304 strikethrough: text_style.strikethrough,
6305 };
6306 let line_layout = window
6307 .text_system()
6308 .shape_line(x, font_size, &[run])
6309 .unwrap()
6310 .with_len(highlighted_chunk.text.len());
6311
6312 width += line_layout.width;
6313 len += highlighted_chunk.text.len();
6314 fragments.push(LineFragment::Text(line_layout))
6315 }
6316 }
6317 } else {
6318 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6319 if ix > 0 {
6320 let shaped_line = window
6321 .text_system()
6322 .shape_line(line.clone().into(), font_size, &styles)
6323 .unwrap();
6324 width += shaped_line.width;
6325 len += shaped_line.len;
6326 fragments.push(LineFragment::Text(shaped_line));
6327 layouts.push(Self {
6328 width: mem::take(&mut width),
6329 len: mem::take(&mut len),
6330 fragments: mem::take(&mut fragments),
6331 invisibles: std::mem::take(&mut invisibles),
6332 font_size,
6333 });
6334
6335 line.clear();
6336 styles.clear();
6337 row += 1;
6338 line_exceeded_max_len = false;
6339 non_whitespace_added = false;
6340 if row == max_line_count {
6341 return layouts;
6342 }
6343 }
6344
6345 if !line_chunk.is_empty() && !line_exceeded_max_len {
6346 let text_style = if let Some(style) = highlighted_chunk.style {
6347 Cow::Owned(text_style.clone().highlight(style))
6348 } else {
6349 Cow::Borrowed(text_style)
6350 };
6351
6352 if line.len() + line_chunk.len() > max_line_len {
6353 let mut chunk_len = max_line_len - line.len();
6354 while !line_chunk.is_char_boundary(chunk_len) {
6355 chunk_len -= 1;
6356 }
6357 line_chunk = &line_chunk[..chunk_len];
6358 line_exceeded_max_len = true;
6359 }
6360
6361 styles.push(TextRun {
6362 len: line_chunk.len(),
6363 font: text_style.font(),
6364 color: text_style.color,
6365 background_color: text_style.background_color,
6366 underline: text_style.underline,
6367 strikethrough: text_style.strikethrough,
6368 });
6369
6370 if editor_mode == EditorMode::Full {
6371 // Line wrap pads its contents with fake whitespaces,
6372 // avoid printing them
6373 let is_soft_wrapped = is_row_soft_wrapped(row);
6374 if highlighted_chunk.is_tab {
6375 if non_whitespace_added || !is_soft_wrapped {
6376 invisibles.push(Invisible::Tab {
6377 line_start_offset: line.len(),
6378 line_end_offset: line.len() + line_chunk.len(),
6379 });
6380 }
6381 } else {
6382 invisibles.extend(line_chunk.char_indices().filter_map(
6383 |(index, c)| {
6384 let is_whitespace = c.is_whitespace();
6385 non_whitespace_added |= !is_whitespace;
6386 if is_whitespace
6387 && (non_whitespace_added || !is_soft_wrapped)
6388 {
6389 Some(Invisible::Whitespace {
6390 line_offset: line.len() + index,
6391 })
6392 } else {
6393 None
6394 }
6395 },
6396 ))
6397 }
6398 }
6399
6400 line.push_str(line_chunk);
6401 }
6402 }
6403 }
6404 }
6405
6406 layouts
6407 }
6408
6409 #[allow(clippy::too_many_arguments)]
6410 fn prepaint(
6411 &mut self,
6412 line_height: Pixels,
6413 scroll_pixel_position: gpui::Point<Pixels>,
6414 row: DisplayRow,
6415 content_origin: gpui::Point<Pixels>,
6416 line_elements: &mut SmallVec<[AnyElement; 1]>,
6417 window: &mut Window,
6418 cx: &mut App,
6419 ) {
6420 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6421 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6422 for fragment in &mut self.fragments {
6423 match fragment {
6424 LineFragment::Text(line) => {
6425 fragment_origin.x += line.width;
6426 }
6427 LineFragment::Element { element, size, .. } => {
6428 let mut element = element
6429 .take()
6430 .expect("you can't prepaint LineWithInvisibles twice");
6431
6432 // Center the element vertically within the line.
6433 let mut element_origin = fragment_origin;
6434 element_origin.y += (line_height - size.height) / 2.;
6435 element.prepaint_at(element_origin, window, cx);
6436 line_elements.push(element);
6437
6438 fragment_origin.x += size.width;
6439 }
6440 }
6441 }
6442 }
6443
6444 #[allow(clippy::too_many_arguments)]
6445 fn draw(
6446 &self,
6447 layout: &EditorLayout,
6448 row: DisplayRow,
6449 content_origin: gpui::Point<Pixels>,
6450 whitespace_setting: ShowWhitespaceSetting,
6451 selection_ranges: &[Range<DisplayPoint>],
6452 window: &mut Window,
6453 cx: &mut App,
6454 ) {
6455 let line_height = layout.position_map.line_height;
6456 let line_y = line_height
6457 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6458
6459 let mut fragment_origin =
6460 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6461
6462 for fragment in &self.fragments {
6463 match fragment {
6464 LineFragment::Text(line) => {
6465 line.paint(fragment_origin, line_height, window, cx)
6466 .log_err();
6467 fragment_origin.x += line.width;
6468 }
6469 LineFragment::Element { size, .. } => {
6470 fragment_origin.x += size.width;
6471 }
6472 }
6473 }
6474
6475 self.draw_invisibles(
6476 selection_ranges,
6477 layout,
6478 content_origin,
6479 line_y,
6480 row,
6481 line_height,
6482 whitespace_setting,
6483 window,
6484 cx,
6485 );
6486 }
6487
6488 #[allow(clippy::too_many_arguments)]
6489 fn draw_invisibles(
6490 &self,
6491 selection_ranges: &[Range<DisplayPoint>],
6492 layout: &EditorLayout,
6493 content_origin: gpui::Point<Pixels>,
6494 line_y: Pixels,
6495 row: DisplayRow,
6496 line_height: Pixels,
6497 whitespace_setting: ShowWhitespaceSetting,
6498 window: &mut Window,
6499 cx: &mut App,
6500 ) {
6501 let extract_whitespace_info = |invisible: &Invisible| {
6502 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6503 Invisible::Tab {
6504 line_start_offset,
6505 line_end_offset,
6506 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6507 Invisible::Whitespace { line_offset } => {
6508 (*line_offset, line_offset + 1, &layout.space_invisible)
6509 }
6510 };
6511
6512 let x_offset = self.x_for_index(token_offset);
6513 let invisible_offset =
6514 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6515 let origin = content_origin
6516 + gpui::point(
6517 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6518 line_y,
6519 );
6520
6521 (
6522 [token_offset, token_end_offset],
6523 Box::new(move |window: &mut Window, cx: &mut App| {
6524 invisible_symbol
6525 .paint(origin, line_height, window, cx)
6526 .log_err();
6527 }),
6528 )
6529 };
6530
6531 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6532 match whitespace_setting {
6533 ShowWhitespaceSetting::None => (),
6534 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6535 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6536 let invisible_point = DisplayPoint::new(row, start as u32);
6537 if !selection_ranges
6538 .iter()
6539 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6540 {
6541 return;
6542 }
6543
6544 paint(window, cx);
6545 }),
6546
6547 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6548 // - It is a tab
6549 // - It is adjacent to an edge (start or end)
6550 // - It is adjacent to a whitespace (left or right)
6551 ShowWhitespaceSetting::Boundary => {
6552 // 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
6553 // the above cases.
6554 // Note: We zip in the original `invisibles` to check for tab equality
6555 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6556 for (([start, end], paint), invisible) in
6557 invisible_iter.zip_eq(self.invisibles.iter())
6558 {
6559 let should_render = match (&last_seen, invisible) {
6560 (_, Invisible::Tab { .. }) => true,
6561 (Some((_, last_end, _)), _) => *last_end == start,
6562 _ => false,
6563 };
6564
6565 if should_render || start == 0 || end == self.len {
6566 paint(window, cx);
6567
6568 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6569 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6570 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6571 // Note that we need to make sure that the last one is actually adjacent
6572 if !should_render_last && last_end == start {
6573 paint_last(window, cx);
6574 }
6575 }
6576 }
6577
6578 // Manually render anything within a selection
6579 let invisible_point = DisplayPoint::new(row, start as u32);
6580 if selection_ranges.iter().any(|region| {
6581 region.start <= invisible_point && invisible_point < region.end
6582 }) {
6583 paint(window, cx);
6584 }
6585
6586 last_seen = Some((should_render, end, paint));
6587 }
6588 }
6589 }
6590 }
6591
6592 pub fn x_for_index(&self, index: usize) -> Pixels {
6593 let mut fragment_start_x = Pixels::ZERO;
6594 let mut fragment_start_index = 0;
6595
6596 for fragment in &self.fragments {
6597 match fragment {
6598 LineFragment::Text(shaped_line) => {
6599 let fragment_end_index = fragment_start_index + shaped_line.len;
6600 if index < fragment_end_index {
6601 return fragment_start_x
6602 + shaped_line.x_for_index(index - fragment_start_index);
6603 }
6604 fragment_start_x += shaped_line.width;
6605 fragment_start_index = fragment_end_index;
6606 }
6607 LineFragment::Element { len, size, .. } => {
6608 let fragment_end_index = fragment_start_index + len;
6609 if index < fragment_end_index {
6610 return fragment_start_x;
6611 }
6612 fragment_start_x += size.width;
6613 fragment_start_index = fragment_end_index;
6614 }
6615 }
6616 }
6617
6618 fragment_start_x
6619 }
6620
6621 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6622 let mut fragment_start_x = Pixels::ZERO;
6623 let mut fragment_start_index = 0;
6624
6625 for fragment in &self.fragments {
6626 match fragment {
6627 LineFragment::Text(shaped_line) => {
6628 let fragment_end_x = fragment_start_x + shaped_line.width;
6629 if x < fragment_end_x {
6630 return Some(
6631 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6632 );
6633 }
6634 fragment_start_x = fragment_end_x;
6635 fragment_start_index += shaped_line.len;
6636 }
6637 LineFragment::Element { len, size, .. } => {
6638 let fragment_end_x = fragment_start_x + size.width;
6639 if x < fragment_end_x {
6640 return Some(fragment_start_index);
6641 }
6642 fragment_start_index += len;
6643 fragment_start_x = fragment_end_x;
6644 }
6645 }
6646 }
6647
6648 None
6649 }
6650
6651 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6652 let mut fragment_start_index = 0;
6653
6654 for fragment in &self.fragments {
6655 match fragment {
6656 LineFragment::Text(shaped_line) => {
6657 let fragment_end_index = fragment_start_index + shaped_line.len;
6658 if index < fragment_end_index {
6659 return shaped_line.font_id_for_index(index - fragment_start_index);
6660 }
6661 fragment_start_index = fragment_end_index;
6662 }
6663 LineFragment::Element { len, .. } => {
6664 let fragment_end_index = fragment_start_index + len;
6665 if index < fragment_end_index {
6666 return None;
6667 }
6668 fragment_start_index = fragment_end_index;
6669 }
6670 }
6671 }
6672
6673 None
6674 }
6675}
6676
6677#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6678enum Invisible {
6679 /// A tab character
6680 ///
6681 /// A tab character is internally represented by spaces (configured by the user's tab width)
6682 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6683 /// adjacency checks.
6684 Tab {
6685 line_start_offset: usize,
6686 line_end_offset: usize,
6687 },
6688 Whitespace {
6689 line_offset: usize,
6690 },
6691}
6692
6693impl EditorElement {
6694 /// Returns the rem size to use when rendering the [`EditorElement`].
6695 ///
6696 /// This allows UI elements to scale based on the `buffer_font_size`.
6697 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6698 match self.editor.read(cx).mode {
6699 EditorMode::Full => {
6700 let buffer_font_size = self.style.text.font_size;
6701 match buffer_font_size {
6702 AbsoluteLength::Pixels(pixels) => {
6703 let rem_size_scale = {
6704 // Our default UI font size is 14px on a 16px base scale.
6705 // This means the default UI font size is 0.875rems.
6706 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6707
6708 // We then determine the delta between a single rem and the default font
6709 // size scale.
6710 let default_font_size_delta = 1. - default_font_size_scale;
6711
6712 // Finally, we add this delta to 1rem to get the scale factor that
6713 // should be used to scale up the UI.
6714 1. + default_font_size_delta
6715 };
6716
6717 Some(pixels * rem_size_scale)
6718 }
6719 AbsoluteLength::Rems(rems) => {
6720 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6721 }
6722 }
6723 }
6724 // We currently use single-line and auto-height editors in UI contexts,
6725 // so we don't want to scale everything with the buffer font size, as it
6726 // ends up looking off.
6727 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6728 }
6729 }
6730}
6731
6732impl Element for EditorElement {
6733 type RequestLayoutState = ();
6734 type PrepaintState = EditorLayout;
6735
6736 fn id(&self) -> Option<ElementId> {
6737 None
6738 }
6739
6740 fn request_layout(
6741 &mut self,
6742 _: Option<&GlobalElementId>,
6743 window: &mut Window,
6744 cx: &mut App,
6745 ) -> (gpui::LayoutId, ()) {
6746 let rem_size = self.rem_size(cx);
6747 window.with_rem_size(rem_size, |window| {
6748 self.editor.update(cx, |editor, cx| {
6749 editor.set_style(self.style.clone(), window, cx);
6750
6751 let layout_id = match editor.mode {
6752 EditorMode::SingleLine { auto_width } => {
6753 let rem_size = window.rem_size();
6754
6755 let height = self.style.text.line_height_in_pixels(rem_size);
6756 if auto_width {
6757 let editor_handle = cx.entity().clone();
6758 let style = self.style.clone();
6759 window.request_measured_layout(
6760 Style::default(),
6761 move |_, _, window, cx| {
6762 let editor_snapshot = editor_handle
6763 .update(cx, |editor, cx| editor.snapshot(window, cx));
6764 let line = Self::layout_lines(
6765 DisplayRow(0)..DisplayRow(1),
6766 &editor_snapshot,
6767 &style,
6768 px(f32::MAX),
6769 |_| false, // Single lines never soft wrap
6770 window,
6771 cx,
6772 )
6773 .pop()
6774 .unwrap();
6775
6776 let font_id =
6777 window.text_system().resolve_font(&style.text.font());
6778 let font_size =
6779 style.text.font_size.to_pixels(window.rem_size());
6780 let em_width =
6781 window.text_system().em_width(font_id, font_size).unwrap();
6782
6783 size(line.width + em_width, height)
6784 },
6785 )
6786 } else {
6787 let mut style = Style::default();
6788 style.size.height = height.into();
6789 style.size.width = relative(1.).into();
6790 window.request_layout(style, None, cx)
6791 }
6792 }
6793 EditorMode::AutoHeight { max_lines } => {
6794 let editor_handle = cx.entity().clone();
6795 let max_line_number_width =
6796 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6797 window.request_measured_layout(
6798 Style::default(),
6799 move |known_dimensions, available_space, window, cx| {
6800 editor_handle
6801 .update(cx, |editor, cx| {
6802 compute_auto_height_layout(
6803 editor,
6804 max_lines,
6805 max_line_number_width,
6806 known_dimensions,
6807 available_space.width,
6808 window,
6809 cx,
6810 )
6811 })
6812 .unwrap_or_default()
6813 },
6814 )
6815 }
6816 EditorMode::Full => {
6817 let mut style = Style::default();
6818 style.size.width = relative(1.).into();
6819 style.size.height = relative(1.).into();
6820 window.request_layout(style, None, cx)
6821 }
6822 };
6823
6824 (layout_id, ())
6825 })
6826 })
6827 }
6828
6829 fn prepaint(
6830 &mut self,
6831 _: Option<&GlobalElementId>,
6832 bounds: Bounds<Pixels>,
6833 _: &mut Self::RequestLayoutState,
6834 window: &mut Window,
6835 cx: &mut App,
6836 ) -> Self::PrepaintState {
6837 let text_style = TextStyleRefinement {
6838 font_size: Some(self.style.text.font_size),
6839 line_height: Some(self.style.text.line_height),
6840 ..Default::default()
6841 };
6842 let focus_handle = self.editor.focus_handle(cx);
6843 window.set_view_id(self.editor.entity_id());
6844 window.set_focus_handle(&focus_handle, cx);
6845
6846 let rem_size = self.rem_size(cx);
6847 window.with_rem_size(rem_size, |window| {
6848 window.with_text_style(Some(text_style), |window| {
6849 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6850 let mut snapshot = self
6851 .editor
6852 .update(cx, |editor, cx| editor.snapshot(window, cx));
6853 let style = self.style.clone();
6854
6855 let font_id = window.text_system().resolve_font(&style.text.font());
6856 let font_size = style.text.font_size.to_pixels(window.rem_size());
6857 let line_height = style.text.line_height_in_pixels(window.rem_size());
6858 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6859 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6860
6861 let letter_size = size(em_width, line_height);
6862
6863 let gutter_dimensions = snapshot
6864 .gutter_dimensions(
6865 font_id,
6866 font_size,
6867 self.max_line_number_width(&snapshot, window, cx),
6868 cx,
6869 )
6870 .unwrap_or_default();
6871 let text_width = bounds.size.width - gutter_dimensions.width;
6872
6873 let editor_width =
6874 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6875
6876 snapshot = self.editor.update(cx, |editor, cx| {
6877 editor.last_bounds = Some(bounds);
6878 editor.gutter_dimensions = gutter_dimensions;
6879 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6880
6881 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6882 snapshot
6883 } else {
6884 let wrap_width = match editor.soft_wrap_mode(cx) {
6885 SoftWrap::GitDiff => None,
6886 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6887 SoftWrap::EditorWidth => Some(editor_width),
6888 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6889 SoftWrap::Bounded(column) => {
6890 Some(editor_width.min(column as f32 * em_advance))
6891 }
6892 };
6893
6894 if editor.set_wrap_width(wrap_width, cx) {
6895 editor.snapshot(window, cx)
6896 } else {
6897 snapshot
6898 }
6899 }
6900 });
6901
6902 let wrap_guides = self
6903 .editor
6904 .read(cx)
6905 .wrap_guides(cx)
6906 .iter()
6907 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6908 .collect::<SmallVec<[_; 2]>>();
6909
6910 let hitbox = window.insert_hitbox(bounds, false);
6911 let gutter_hitbox =
6912 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6913 let text_hitbox = window.insert_hitbox(
6914 Bounds {
6915 origin: gutter_hitbox.top_right(),
6916 size: size(text_width, bounds.size.height),
6917 },
6918 false,
6919 );
6920 // Offset the content_bounds from the text_bounds by the gutter margin (which
6921 // is roughly half a character wide) to make hit testing work more like how we want.
6922 let content_origin =
6923 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6924
6925 let scrollbar_bounds =
6926 Bounds::from_corners(content_origin, bounds.bottom_right());
6927
6928 let height_in_lines = scrollbar_bounds.size.height / line_height;
6929
6930 // NOTE: The max row number in the current file, minus one
6931 let max_row = snapshot.max_point().row().as_f32();
6932
6933 // NOTE: The max scroll position for the top of the window
6934 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6935 (max_row - height_in_lines + 1.).max(0.)
6936 } else {
6937 let settings = EditorSettings::get_global(cx);
6938 match settings.scroll_beyond_last_line {
6939 ScrollBeyondLastLine::OnePage => max_row,
6940 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6941 ScrollBeyondLastLine::VerticalScrollMargin => {
6942 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6943 .max(0.)
6944 }
6945 }
6946 };
6947
6948 // TODO: Autoscrolling for both axes
6949 let mut autoscroll_request = None;
6950 let mut autoscroll_containing_element = false;
6951 let mut autoscroll_horizontally = false;
6952 self.editor.update(cx, |editor, cx| {
6953 autoscroll_request = editor.autoscroll_request();
6954 autoscroll_containing_element =
6955 autoscroll_request.is_some() || editor.has_pending_selection();
6956 // TODO: Is this horizontal or vertical?!
6957 autoscroll_horizontally = editor.autoscroll_vertically(
6958 bounds,
6959 line_height,
6960 max_scroll_top,
6961 window,
6962 cx,
6963 );
6964 snapshot = editor.snapshot(window, cx);
6965 });
6966
6967 let mut scroll_position = snapshot.scroll_position();
6968 // The scroll position is a fractional point, the whole number of which represents
6969 // the top of the window in terms of display rows.
6970 let start_row = DisplayRow(scroll_position.y as u32);
6971 let max_row = snapshot.max_point().row();
6972 let end_row = cmp::min(
6973 (scroll_position.y + height_in_lines).ceil() as u32,
6974 max_row.next_row().0,
6975 );
6976 let end_row = DisplayRow(end_row);
6977
6978 let row_infos = snapshot
6979 .row_infos(start_row)
6980 .take((start_row..end_row).len())
6981 .collect::<Vec<RowInfo>>();
6982 let is_row_soft_wrapped = |row: usize| {
6983 row_infos
6984 .get(row)
6985 .map_or(true, |info| info.buffer_row.is_none())
6986 };
6987
6988 let start_anchor = if start_row == Default::default() {
6989 Anchor::min()
6990 } else {
6991 snapshot.buffer_snapshot.anchor_before(
6992 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6993 )
6994 };
6995 let end_anchor = if end_row > max_row {
6996 Anchor::max()
6997 } else {
6998 snapshot.buffer_snapshot.anchor_before(
6999 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
7000 )
7001 };
7002
7003 let mut highlighted_rows = self
7004 .editor
7005 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
7006
7007 for (ix, row_info) in row_infos.iter().enumerate() {
7008 let background = match row_info.diff_status {
7009 Some(DiffHunkStatus::Added(_)) => {
7010 cx.theme().colors().version_control_added_background
7011 }
7012 Some(DiffHunkStatus::Removed(_)) => {
7013 cx.theme().colors().version_control_deleted_background
7014 }
7015 _ => continue,
7016 };
7017
7018 highlighted_rows
7019 .entry(start_row + DisplayRow(ix as u32))
7020 .or_insert(background);
7021 }
7022
7023 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
7024 start_anchor..end_anchor,
7025 &snapshot.display_snapshot,
7026 cx.theme().colors(),
7027 );
7028 let highlighted_gutter_ranges =
7029 self.editor.read(cx).gutter_highlights_in_range(
7030 start_anchor..end_anchor,
7031 &snapshot.display_snapshot,
7032 cx,
7033 );
7034
7035 let redacted_ranges = self.editor.read(cx).redacted_ranges(
7036 start_anchor..end_anchor,
7037 &snapshot.display_snapshot,
7038 cx,
7039 );
7040
7041 let (local_selections, selected_buffer_ids): (
7042 Vec<Selection<Point>>,
7043 Vec<BufferId>,
7044 ) = self.editor.update(cx, |editor, cx| {
7045 let all_selections = editor.selections.all::<Point>(cx);
7046 let selected_buffer_ids = if editor.is_singleton(cx) {
7047 Vec::new()
7048 } else {
7049 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
7050
7051 for selection in all_selections {
7052 for buffer_id in snapshot
7053 .buffer_snapshot
7054 .buffer_ids_for_range(selection.range())
7055 {
7056 if selected_buffer_ids.last() != Some(&buffer_id) {
7057 selected_buffer_ids.push(buffer_id);
7058 }
7059 }
7060 }
7061
7062 selected_buffer_ids
7063 };
7064
7065 let mut selections = editor
7066 .selections
7067 .disjoint_in_range(start_anchor..end_anchor, cx);
7068 selections.extend(editor.selections.pending(cx));
7069
7070 (selections, selected_buffer_ids)
7071 });
7072
7073 let (selections, active_rows, newest_selection_head) = self.layout_selections(
7074 start_anchor,
7075 end_anchor,
7076 &local_selections,
7077 &snapshot,
7078 start_row,
7079 end_row,
7080 window,
7081 cx,
7082 );
7083
7084 let line_numbers = self.layout_line_numbers(
7085 Some(&gutter_hitbox),
7086 gutter_dimensions,
7087 line_height,
7088 scroll_position,
7089 start_row..end_row,
7090 &row_infos,
7091 newest_selection_head,
7092 &snapshot,
7093 window,
7094 cx,
7095 );
7096
7097 let mut crease_toggles =
7098 window.with_element_namespace("crease_toggles", |window| {
7099 self.layout_crease_toggles(
7100 start_row..end_row,
7101 &row_infos,
7102 &active_rows,
7103 &snapshot,
7104 window,
7105 cx,
7106 )
7107 });
7108 let crease_trailers =
7109 window.with_element_namespace("crease_trailers", |window| {
7110 self.layout_crease_trailers(
7111 row_infos.iter().copied(),
7112 &snapshot,
7113 window,
7114 cx,
7115 )
7116 });
7117
7118 let display_hunks = self.layout_gutter_diff_hunks(
7119 line_height,
7120 &gutter_hitbox,
7121 start_row..end_row,
7122 &snapshot,
7123 window,
7124 cx,
7125 );
7126
7127 let mut line_layouts = Self::layout_lines(
7128 start_row..end_row,
7129 &snapshot,
7130 &self.style,
7131 editor_width,
7132 is_row_soft_wrapped,
7133 window,
7134 cx,
7135 );
7136
7137 let longest_line_blame_width = self
7138 .editor
7139 .update(cx, |editor, cx| {
7140 if !editor.show_git_blame_inline {
7141 return None;
7142 }
7143 let blame = editor.blame.as_ref()?;
7144 let blame_entry = blame
7145 .update(cx, |blame, cx| {
7146 let row_infos =
7147 snapshot.row_infos(snapshot.longest_row()).next()?;
7148 blame.blame_for_rows(&[row_infos], cx).next()
7149 })
7150 .flatten()?;
7151 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7152 let mut element = render_inline_blame_entry(
7153 blame,
7154 blame_entry,
7155 &style,
7156 workspace,
7157 cx,
7158 );
7159 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7160 Some(
7161 element
7162 .layout_as_root(AvailableSpace::min_size(), window, cx)
7163 .width
7164 + inline_blame_padding,
7165 )
7166 })
7167 .unwrap_or(Pixels::ZERO);
7168
7169 let longest_line_width = layout_line(
7170 snapshot.longest_row(),
7171 &snapshot,
7172 &style,
7173 editor_width,
7174 is_row_soft_wrapped,
7175 window,
7176 cx,
7177 )
7178 .width;
7179
7180 let scrollbar_range_data = ScrollbarRangeData::new(
7181 scrollbar_bounds,
7182 letter_size,
7183 &snapshot,
7184 longest_line_width,
7185 longest_line_blame_width,
7186 &style,
7187 editor_width,
7188 cx,
7189 );
7190
7191 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7192 let mut scroll_width = scroll_range_bounds.size.width;
7193
7194 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7195 snapshot.sticky_header_excerpt(start_row)
7196 } else {
7197 None
7198 };
7199 let sticky_header_excerpt_id =
7200 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7201
7202 let blocks = window.with_element_namespace("blocks", |window| {
7203 self.render_blocks(
7204 start_row..end_row,
7205 &snapshot,
7206 &hitbox,
7207 &text_hitbox,
7208 editor_width,
7209 &mut scroll_width,
7210 &gutter_dimensions,
7211 em_width,
7212 gutter_dimensions.full_width(),
7213 line_height,
7214 &line_layouts,
7215 &local_selections,
7216 &selected_buffer_ids,
7217 is_row_soft_wrapped,
7218 sticky_header_excerpt_id,
7219 window,
7220 cx,
7221 )
7222 });
7223 let mut blocks = match blocks {
7224 Ok(blocks) => blocks,
7225 Err(resized_blocks) => {
7226 self.editor.update(cx, |editor, cx| {
7227 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7228 });
7229 return self.prepaint(None, bounds, &mut (), window, cx);
7230 }
7231 };
7232
7233 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7234 window.with_element_namespace("blocks", |window| {
7235 self.layout_sticky_buffer_header(
7236 sticky_header_excerpt,
7237 scroll_position.y,
7238 line_height,
7239 &snapshot,
7240 &hitbox,
7241 &selected_buffer_ids,
7242 window,
7243 cx,
7244 )
7245 })
7246 });
7247
7248 let start_buffer_row =
7249 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7250 let end_buffer_row =
7251 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7252
7253 let scroll_max = point(
7254 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7255 max_row.as_f32(),
7256 );
7257
7258 self.editor.update(cx, |editor, cx| {
7259 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7260
7261 let autoscrolled = if autoscroll_horizontally {
7262 editor.autoscroll_horizontally(
7263 start_row,
7264 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7265 scroll_width,
7266 em_width,
7267 &line_layouts,
7268 cx,
7269 )
7270 } else {
7271 false
7272 };
7273
7274 if clamped || autoscrolled {
7275 snapshot = editor.snapshot(window, cx);
7276 scroll_position = snapshot.scroll_position();
7277 }
7278 });
7279
7280 let scroll_pixel_position = point(
7281 scroll_position.x * em_width,
7282 scroll_position.y * line_height,
7283 );
7284
7285 let indent_guides = self.layout_indent_guides(
7286 content_origin,
7287 text_hitbox.origin,
7288 start_buffer_row..end_buffer_row,
7289 scroll_pixel_position,
7290 line_height,
7291 &snapshot,
7292 window,
7293 cx,
7294 );
7295
7296 let crease_trailers =
7297 window.with_element_namespace("crease_trailers", |window| {
7298 self.prepaint_crease_trailers(
7299 crease_trailers,
7300 &line_layouts,
7301 line_height,
7302 content_origin,
7303 scroll_pixel_position,
7304 em_width,
7305 window,
7306 cx,
7307 )
7308 });
7309
7310 let mut inline_blame = None;
7311 if let Some(newest_selection_head) = newest_selection_head {
7312 let display_row = newest_selection_head.row();
7313 if (start_row..end_row).contains(&display_row) {
7314 let line_ix = display_row.minus(start_row) as usize;
7315 let row_info = &row_infos[line_ix];
7316 let line_layout = &line_layouts[line_ix];
7317 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7318 inline_blame = self.layout_inline_blame(
7319 display_row,
7320 row_info,
7321 line_layout,
7322 crease_trailer_layout,
7323 em_width,
7324 content_origin,
7325 scroll_pixel_position,
7326 line_height,
7327 window,
7328 cx,
7329 );
7330 }
7331 }
7332
7333 let blamed_display_rows = self.layout_blame_entries(
7334 &row_infos,
7335 em_width,
7336 scroll_position,
7337 line_height,
7338 &gutter_hitbox,
7339 gutter_dimensions.git_blame_entries_width,
7340 window,
7341 cx,
7342 );
7343
7344 let scroll_max = point(
7345 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7346 max_scroll_top,
7347 );
7348
7349 self.editor.update(cx, |editor, cx| {
7350 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7351
7352 let autoscrolled = if autoscroll_horizontally {
7353 editor.autoscroll_horizontally(
7354 start_row,
7355 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7356 scroll_width,
7357 em_width,
7358 &line_layouts,
7359 cx,
7360 )
7361 } else {
7362 false
7363 };
7364
7365 if clamped || autoscrolled {
7366 snapshot = editor.snapshot(window, cx);
7367 scroll_position = snapshot.scroll_position();
7368 }
7369 });
7370
7371 let line_elements = self.prepaint_lines(
7372 start_row,
7373 &mut line_layouts,
7374 line_height,
7375 scroll_pixel_position,
7376 content_origin,
7377 window,
7378 cx,
7379 );
7380
7381 let mut block_start_rows = HashSet::default();
7382
7383 window.with_element_namespace("blocks", |window| {
7384 self.layout_blocks(
7385 &mut blocks,
7386 &mut block_start_rows,
7387 &hitbox,
7388 line_height,
7389 scroll_pixel_position,
7390 window,
7391 cx,
7392 );
7393 });
7394
7395 let cursors = self.collect_cursors(&snapshot, cx);
7396 let visible_row_range = start_row..end_row;
7397 let non_visible_cursors = cursors
7398 .iter()
7399 .any(|c| !visible_row_range.contains(&c.0.row()));
7400
7401 let visible_cursors = self.layout_visible_cursors(
7402 &snapshot,
7403 &selections,
7404 &block_start_rows,
7405 start_row..end_row,
7406 &line_layouts,
7407 &text_hitbox,
7408 content_origin,
7409 scroll_position,
7410 scroll_pixel_position,
7411 line_height,
7412 em_width,
7413 em_advance,
7414 autoscroll_containing_element,
7415 window,
7416 cx,
7417 );
7418
7419 let scrollbars_layout = self.layout_scrollbars(
7420 &snapshot,
7421 scrollbar_range_data,
7422 scroll_position,
7423 non_visible_cursors,
7424 window,
7425 cx,
7426 );
7427
7428 let gutter_settings = EditorSettings::get_global(cx).gutter;
7429
7430 let rows_with_hunk_bounds = display_hunks
7431 .iter()
7432 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7433 .fold(
7434 HashMap::default(),
7435 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7436 match hunk {
7437 DisplayDiffHunk::Folded { display_row } => {
7438 rows_with_hunk_bounds.insert(*display_row, bounds);
7439 }
7440 DisplayDiffHunk::Unfolded {
7441 display_row_range, ..
7442 } => {
7443 for display_row in display_row_range.iter_rows() {
7444 rows_with_hunk_bounds.insert(display_row, bounds);
7445 }
7446 }
7447 }
7448 rows_with_hunk_bounds
7449 },
7450 );
7451 let mut code_actions_indicator = None;
7452 if let Some(newest_selection_head) = newest_selection_head {
7453 let newest_selection_point =
7454 newest_selection_head.to_point(&snapshot.display_snapshot);
7455
7456 if (start_row..end_row).contains(&newest_selection_head.row()) {
7457 self.layout_cursor_popovers(
7458 line_height,
7459 &text_hitbox,
7460 content_origin,
7461 start_row,
7462 scroll_pixel_position,
7463 &line_layouts,
7464 newest_selection_head,
7465 newest_selection_point,
7466 &style,
7467 window,
7468 cx,
7469 );
7470
7471 let show_code_actions = snapshot
7472 .show_code_actions
7473 .unwrap_or(gutter_settings.code_actions);
7474 if show_code_actions {
7475 let newest_selection_point =
7476 newest_selection_head.to_point(&snapshot.display_snapshot);
7477 if !snapshot
7478 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7479 {
7480 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7481 MultiBufferRow(newest_selection_point.row),
7482 );
7483 if let Some((buffer, range)) = buffer {
7484 let buffer_id = buffer.remote_id();
7485 let row = range.start.row;
7486 let has_test_indicator = self
7487 .editor
7488 .read(cx)
7489 .tasks
7490 .contains_key(&(buffer_id, row));
7491
7492 if !has_test_indicator {
7493 code_actions_indicator = self
7494 .layout_code_actions_indicator(
7495 line_height,
7496 newest_selection_head,
7497 scroll_pixel_position,
7498 &gutter_dimensions,
7499 &gutter_hitbox,
7500 &rows_with_hunk_bounds,
7501 window,
7502 cx,
7503 );
7504 }
7505 }
7506 }
7507 }
7508 }
7509 }
7510
7511 self.layout_gutter_menu(
7512 line_height,
7513 &text_hitbox,
7514 content_origin,
7515 scroll_pixel_position,
7516 gutter_dimensions.width - gutter_dimensions.left_padding,
7517 window,
7518 cx,
7519 );
7520
7521 let test_indicators = if gutter_settings.runnables {
7522 self.layout_run_indicators(
7523 line_height,
7524 start_row..end_row,
7525 scroll_pixel_position,
7526 &gutter_dimensions,
7527 &gutter_hitbox,
7528 &rows_with_hunk_bounds,
7529 &snapshot,
7530 window,
7531 cx,
7532 )
7533 } else {
7534 Vec::new()
7535 };
7536
7537 self.layout_signature_help(
7538 &hitbox,
7539 content_origin,
7540 scroll_pixel_position,
7541 newest_selection_head,
7542 start_row,
7543 &line_layouts,
7544 line_height,
7545 em_width,
7546 window,
7547 cx,
7548 );
7549
7550 if !cx.has_active_drag() {
7551 self.layout_hover_popovers(
7552 &snapshot,
7553 &hitbox,
7554 &text_hitbox,
7555 start_row..end_row,
7556 content_origin,
7557 scroll_pixel_position,
7558 &line_layouts,
7559 line_height,
7560 em_width,
7561 window,
7562 cx,
7563 );
7564 }
7565
7566 let inline_completion_popover = self.layout_edit_prediction_popover(
7567 &text_hitbox.bounds,
7568 content_origin,
7569 &snapshot,
7570 start_row..end_row,
7571 scroll_position.y,
7572 scroll_position.y + height_in_lines,
7573 &line_layouts,
7574 line_height,
7575 scroll_pixel_position,
7576 newest_selection_head,
7577 editor_width,
7578 &style,
7579 window,
7580 cx,
7581 );
7582
7583 let mouse_context_menu = self.layout_mouse_context_menu(
7584 &snapshot,
7585 start_row..end_row,
7586 content_origin,
7587 window,
7588 cx,
7589 );
7590
7591 window.with_element_namespace("crease_toggles", |window| {
7592 self.prepaint_crease_toggles(
7593 &mut crease_toggles,
7594 line_height,
7595 &gutter_dimensions,
7596 gutter_settings,
7597 scroll_pixel_position,
7598 &gutter_hitbox,
7599 window,
7600 cx,
7601 )
7602 });
7603
7604 let invisible_symbol_font_size = font_size / 2.;
7605 let tab_invisible = window
7606 .text_system()
7607 .shape_line(
7608 "→".into(),
7609 invisible_symbol_font_size,
7610 &[TextRun {
7611 len: "→".len(),
7612 font: self.style.text.font(),
7613 color: cx.theme().colors().editor_invisible,
7614 background_color: None,
7615 underline: None,
7616 strikethrough: None,
7617 }],
7618 )
7619 .unwrap();
7620 let space_invisible = window
7621 .text_system()
7622 .shape_line(
7623 "•".into(),
7624 invisible_symbol_font_size,
7625 &[TextRun {
7626 len: "•".len(),
7627 font: self.style.text.font(),
7628 color: cx.theme().colors().editor_invisible,
7629 background_color: None,
7630 underline: None,
7631 strikethrough: None,
7632 }],
7633 )
7634 .unwrap();
7635
7636 let mode = snapshot.mode;
7637
7638 let position_map = Rc::new(PositionMap {
7639 size: bounds.size,
7640 visible_row_range,
7641 scroll_pixel_position,
7642 scroll_max,
7643 line_layouts,
7644 line_height,
7645 em_width,
7646 em_advance,
7647 snapshot,
7648 gutter_hitbox: gutter_hitbox.clone(),
7649 text_hitbox: text_hitbox.clone(),
7650 });
7651
7652 self.editor.update(cx, |editor, _| {
7653 editor.last_position_map = Some(position_map.clone())
7654 });
7655
7656 let hunk_controls = self.layout_diff_hunk_controls(
7657 start_row..end_row,
7658 &row_infos,
7659 &text_hitbox,
7660 &position_map,
7661 newest_selection_head,
7662 line_height,
7663 scroll_pixel_position,
7664 &display_hunks,
7665 self.editor.clone(),
7666 window,
7667 cx,
7668 );
7669
7670 EditorLayout {
7671 mode,
7672 position_map,
7673 visible_display_row_range: start_row..end_row,
7674 wrap_guides,
7675 indent_guides,
7676 hitbox,
7677 gutter_hitbox,
7678 display_hunks,
7679 content_origin,
7680 scrollbars_layout,
7681 active_rows,
7682 highlighted_rows,
7683 highlighted_ranges,
7684 highlighted_gutter_ranges,
7685 redacted_ranges,
7686 line_elements,
7687 line_numbers,
7688 blamed_display_rows,
7689 inline_blame,
7690 blocks,
7691 cursors,
7692 visible_cursors,
7693 selections,
7694 inline_completion_popover,
7695 diff_hunk_controls: hunk_controls,
7696 mouse_context_menu,
7697 test_indicators,
7698 code_actions_indicator,
7699 crease_toggles,
7700 crease_trailers,
7701 tab_invisible,
7702 space_invisible,
7703 sticky_buffer_header,
7704 }
7705 })
7706 })
7707 })
7708 }
7709
7710 fn paint(
7711 &mut self,
7712 _: Option<&GlobalElementId>,
7713 bounds: Bounds<gpui::Pixels>,
7714 _: &mut Self::RequestLayoutState,
7715 layout: &mut Self::PrepaintState,
7716 window: &mut Window,
7717 cx: &mut App,
7718 ) {
7719 let focus_handle = self.editor.focus_handle(cx);
7720 let key_context = self
7721 .editor
7722 .update(cx, |editor, cx| editor.key_context(window, cx));
7723
7724 window.set_key_context(key_context);
7725 window.handle_input(
7726 &focus_handle,
7727 ElementInputHandler::new(bounds, self.editor.clone()),
7728 cx,
7729 );
7730 self.register_actions(window, cx);
7731 self.register_key_listeners(window, cx, layout);
7732
7733 let text_style = TextStyleRefinement {
7734 font_size: Some(self.style.text.font_size),
7735 line_height: Some(self.style.text.line_height),
7736 ..Default::default()
7737 };
7738 let rem_size = self.rem_size(cx);
7739 window.with_rem_size(rem_size, |window| {
7740 window.with_text_style(Some(text_style), |window| {
7741 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7742 self.paint_mouse_listeners(layout, window, cx);
7743 self.paint_background(layout, window, cx);
7744 self.paint_indent_guides(layout, window, cx);
7745
7746 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7747 self.paint_blamed_display_rows(layout, window, cx);
7748 self.paint_line_numbers(layout, window, cx);
7749 }
7750
7751 self.paint_text(layout, window, cx);
7752
7753 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7754 self.paint_gutter_highlights(layout, window, cx);
7755 self.paint_gutter_indicators(layout, window, cx);
7756 }
7757
7758 if !layout.blocks.is_empty() {
7759 window.with_element_namespace("blocks", |window| {
7760 self.paint_blocks(layout, window, cx);
7761 });
7762 }
7763
7764 window.with_element_namespace("blocks", |window| {
7765 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7766 sticky_header.paint(window, cx)
7767 }
7768 });
7769
7770 self.paint_scrollbars(layout, window, cx);
7771 self.paint_inline_completion_popover(layout, window, cx);
7772 self.paint_mouse_context_menu(layout, window, cx);
7773 });
7774 })
7775 })
7776 }
7777}
7778
7779pub(super) fn gutter_bounds(
7780 editor_bounds: Bounds<Pixels>,
7781 gutter_dimensions: GutterDimensions,
7782) -> Bounds<Pixels> {
7783 Bounds {
7784 origin: editor_bounds.origin,
7785 size: size(gutter_dimensions.width, editor_bounds.size.height),
7786 }
7787}
7788
7789struct ScrollbarRangeData {
7790 scrollbar_bounds: Bounds<Pixels>,
7791 scroll_range: Bounds<Pixels>,
7792 letter_size: Size<Pixels>,
7793}
7794
7795impl ScrollbarRangeData {
7796 #[allow(clippy::too_many_arguments)]
7797 pub fn new(
7798 scrollbar_bounds: Bounds<Pixels>,
7799 letter_size: Size<Pixels>,
7800 snapshot: &EditorSnapshot,
7801 longest_line_width: Pixels,
7802 longest_line_blame_width: Pixels,
7803 style: &EditorStyle,
7804 editor_width: Pixels,
7805 cx: &mut App,
7806 ) -> ScrollbarRangeData {
7807 // TODO: Simplify this function down, it requires a lot of parameters
7808 let max_row = snapshot.max_point().row();
7809 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7810
7811 let settings = EditorSettings::get_global(cx);
7812 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7813 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7814 ScrollBeyondLastLine::Off => px(1.),
7815 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7816 };
7817
7818 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7819 letter_size.width + style.scrollbar_width
7820 } else {
7821 px(0.0)
7822 };
7823
7824 let overscroll = size(
7825 right_margin + longest_line_blame_width,
7826 letter_size.height * scroll_beyond_last_line,
7827 );
7828
7829 let scroll_range = Bounds {
7830 origin: scrollbar_bounds.origin,
7831 size: text_bounds_size + overscroll,
7832 };
7833
7834 ScrollbarRangeData {
7835 scrollbar_bounds,
7836 scroll_range,
7837 letter_size,
7838 }
7839 }
7840}
7841
7842impl IntoElement for EditorElement {
7843 type Element = Self;
7844
7845 fn into_element(self) -> Self::Element {
7846 self
7847 }
7848}
7849
7850pub struct EditorLayout {
7851 position_map: Rc<PositionMap>,
7852 hitbox: Hitbox,
7853 gutter_hitbox: Hitbox,
7854 content_origin: gpui::Point<Pixels>,
7855 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7856 mode: EditorMode,
7857 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7858 indent_guides: Option<Vec<IndentGuideLayout>>,
7859 visible_display_row_range: Range<DisplayRow>,
7860 active_rows: BTreeMap<DisplayRow, bool>,
7861 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7862 line_elements: SmallVec<[AnyElement; 1]>,
7863 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7864 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7865 blamed_display_rows: Option<Vec<AnyElement>>,
7866 inline_blame: Option<AnyElement>,
7867 blocks: Vec<BlockLayout>,
7868 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7869 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7870 redacted_ranges: Vec<Range<DisplayPoint>>,
7871 cursors: Vec<(DisplayPoint, Hsla)>,
7872 visible_cursors: Vec<CursorLayout>,
7873 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7874 code_actions_indicator: Option<AnyElement>,
7875 test_indicators: Vec<AnyElement>,
7876 crease_toggles: Vec<Option<AnyElement>>,
7877 diff_hunk_controls: Vec<AnyElement>,
7878 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7879 inline_completion_popover: Option<AnyElement>,
7880 mouse_context_menu: Option<AnyElement>,
7881 tab_invisible: ShapedLine,
7882 space_invisible: ShapedLine,
7883 sticky_buffer_header: Option<AnyElement>,
7884}
7885
7886impl EditorLayout {
7887 fn line_end_overshoot(&self) -> Pixels {
7888 0.15 * self.position_map.line_height
7889 }
7890}
7891
7892struct LineNumberLayout {
7893 shaped_line: ShapedLine,
7894 hitbox: Option<Hitbox>,
7895 display_row: DisplayRow,
7896}
7897
7898struct ColoredRange<T> {
7899 start: T,
7900 end: T,
7901 color: Hsla,
7902}
7903
7904#[derive(Clone)]
7905struct ScrollbarLayout {
7906 hitbox: Hitbox,
7907 visible_range: Range<f32>,
7908 visible: bool,
7909 text_unit_size: Pixels,
7910 thumb_size: Pixels,
7911 axis: Axis,
7912}
7913
7914impl ScrollbarLayout {
7915 const BORDER_WIDTH: Pixels = px(1.0);
7916 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7917 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7918 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7919
7920 fn thumb_bounds(&self) -> Bounds<Pixels> {
7921 match self.axis {
7922 Axis::Vertical => {
7923 let thumb_top = self.y_for_row(self.visible_range.start);
7924 let thumb_bottom = thumb_top + self.thumb_size;
7925 Bounds::from_corners(
7926 point(self.hitbox.left(), thumb_top),
7927 point(self.hitbox.right(), thumb_bottom),
7928 )
7929 }
7930 Axis::Horizontal => {
7931 let thumb_left =
7932 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7933 let thumb_right = thumb_left + self.thumb_size;
7934 Bounds::from_corners(
7935 point(thumb_left, self.hitbox.top()),
7936 point(thumb_right, self.hitbox.bottom()),
7937 )
7938 }
7939 }
7940 }
7941
7942 fn y_for_row(&self, row: f32) -> Pixels {
7943 self.hitbox.top() + row * self.text_unit_size
7944 }
7945
7946 fn marker_quads_for_ranges(
7947 &self,
7948 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7949 column: Option<usize>,
7950 ) -> Vec<PaintQuad> {
7951 struct MinMax {
7952 min: Pixels,
7953 max: Pixels,
7954 }
7955 let (x_range, height_limit) = if let Some(column) = column {
7956 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7957 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7958 let end = start + column_width;
7959 (
7960 Range { start, end },
7961 MinMax {
7962 min: Self::MIN_MARKER_HEIGHT,
7963 max: px(f32::MAX),
7964 },
7965 )
7966 } else {
7967 (
7968 Range {
7969 start: Self::BORDER_WIDTH,
7970 end: self.hitbox.size.width,
7971 },
7972 MinMax {
7973 min: Self::LINE_MARKER_HEIGHT,
7974 max: Self::LINE_MARKER_HEIGHT,
7975 },
7976 )
7977 };
7978
7979 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7980 let mut pixel_ranges = row_ranges
7981 .into_iter()
7982 .map(|range| {
7983 let start_y = row_to_y(range.start);
7984 let end_y = row_to_y(range.end)
7985 + self
7986 .text_unit_size
7987 .max(height_limit.min)
7988 .min(height_limit.max);
7989 ColoredRange {
7990 start: start_y,
7991 end: end_y,
7992 color: range.color,
7993 }
7994 })
7995 .peekable();
7996
7997 let mut quads = Vec::new();
7998 while let Some(mut pixel_range) = pixel_ranges.next() {
7999 while let Some(next_pixel_range) = pixel_ranges.peek() {
8000 if pixel_range.end >= next_pixel_range.start - px(1.0)
8001 && pixel_range.color == next_pixel_range.color
8002 {
8003 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8004 pixel_ranges.next();
8005 } else {
8006 break;
8007 }
8008 }
8009
8010 let bounds = Bounds::from_corners(
8011 point(x_range.start, pixel_range.start),
8012 point(x_range.end, pixel_range.end),
8013 );
8014 quads.push(quad(
8015 bounds,
8016 Corners::default(),
8017 pixel_range.color,
8018 Edges::default(),
8019 Hsla::transparent_black(),
8020 ));
8021 }
8022
8023 quads
8024 }
8025}
8026
8027struct CreaseTrailerLayout {
8028 element: AnyElement,
8029 bounds: Bounds<Pixels>,
8030}
8031
8032pub(crate) struct PositionMap {
8033 pub size: Size<Pixels>,
8034 pub line_height: Pixels,
8035 pub scroll_pixel_position: gpui::Point<Pixels>,
8036 pub scroll_max: gpui::Point<f32>,
8037 pub em_width: Pixels,
8038 pub em_advance: Pixels,
8039 pub visible_row_range: Range<DisplayRow>,
8040 pub line_layouts: Vec<LineWithInvisibles>,
8041 pub snapshot: EditorSnapshot,
8042 pub text_hitbox: Hitbox,
8043 pub gutter_hitbox: Hitbox,
8044}
8045
8046#[derive(Debug, Copy, Clone)]
8047pub struct PointForPosition {
8048 pub previous_valid: DisplayPoint,
8049 pub next_valid: DisplayPoint,
8050 pub exact_unclipped: DisplayPoint,
8051 pub column_overshoot_after_line_end: u32,
8052}
8053
8054impl PointForPosition {
8055 pub fn as_valid(&self) -> Option<DisplayPoint> {
8056 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8057 Some(self.previous_valid)
8058 } else {
8059 None
8060 }
8061 }
8062}
8063
8064impl PositionMap {
8065 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8066 let text_bounds = self.text_hitbox.bounds;
8067 let scroll_position = self.snapshot.scroll_position();
8068 let position = position - text_bounds.origin;
8069 let y = position.y.max(px(0.)).min(self.size.height);
8070 let x = position.x + (scroll_position.x * self.em_width);
8071 let row = ((y / self.line_height) + scroll_position.y) as u32;
8072
8073 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8074 .line_layouts
8075 .get(row as usize - scroll_position.y as usize)
8076 {
8077 if let Some(ix) = line.index_for_x(x) {
8078 (ix as u32, px(0.))
8079 } else {
8080 (line.len as u32, px(0.).max(x - line.width))
8081 }
8082 } else {
8083 (0, x)
8084 };
8085
8086 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8087 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8088 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8089
8090 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8091 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8092 PointForPosition {
8093 previous_valid,
8094 next_valid,
8095 exact_unclipped,
8096 column_overshoot_after_line_end,
8097 }
8098 }
8099}
8100
8101struct BlockLayout {
8102 id: BlockId,
8103 row: Option<DisplayRow>,
8104 element: AnyElement,
8105 available_space: Size<AvailableSpace>,
8106 style: BlockStyle,
8107}
8108
8109fn layout_line(
8110 row: DisplayRow,
8111 snapshot: &EditorSnapshot,
8112 style: &EditorStyle,
8113 text_width: Pixels,
8114 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8115 window: &mut Window,
8116 cx: &mut App,
8117) -> LineWithInvisibles {
8118 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8119 LineWithInvisibles::from_chunks(
8120 chunks,
8121 &style,
8122 MAX_LINE_LEN,
8123 1,
8124 snapshot.mode,
8125 text_width,
8126 is_row_soft_wrapped,
8127 window,
8128 cx,
8129 )
8130 .pop()
8131 .unwrap()
8132}
8133
8134#[derive(Debug)]
8135pub struct IndentGuideLayout {
8136 origin: gpui::Point<Pixels>,
8137 length: Pixels,
8138 single_indent_width: Pixels,
8139 depth: u32,
8140 active: bool,
8141 settings: IndentGuideSettings,
8142}
8143
8144pub struct CursorLayout {
8145 origin: gpui::Point<Pixels>,
8146 block_width: Pixels,
8147 line_height: Pixels,
8148 color: Hsla,
8149 shape: CursorShape,
8150 block_text: Option<ShapedLine>,
8151 cursor_name: Option<AnyElement>,
8152}
8153
8154#[derive(Debug)]
8155pub struct CursorName {
8156 string: SharedString,
8157 color: Hsla,
8158 is_top_row: bool,
8159}
8160
8161impl CursorLayout {
8162 pub fn new(
8163 origin: gpui::Point<Pixels>,
8164 block_width: Pixels,
8165 line_height: Pixels,
8166 color: Hsla,
8167 shape: CursorShape,
8168 block_text: Option<ShapedLine>,
8169 ) -> CursorLayout {
8170 CursorLayout {
8171 origin,
8172 block_width,
8173 line_height,
8174 color,
8175 shape,
8176 block_text,
8177 cursor_name: None,
8178 }
8179 }
8180
8181 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8182 Bounds {
8183 origin: self.origin + origin,
8184 size: size(self.block_width, self.line_height),
8185 }
8186 }
8187
8188 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8189 match self.shape {
8190 CursorShape::Bar => Bounds {
8191 origin: self.origin + origin,
8192 size: size(px(2.0), self.line_height),
8193 },
8194 CursorShape::Block | CursorShape::Hollow => Bounds {
8195 origin: self.origin + origin,
8196 size: size(self.block_width, self.line_height),
8197 },
8198 CursorShape::Underline => Bounds {
8199 origin: self.origin
8200 + origin
8201 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8202 size: size(self.block_width, px(2.0)),
8203 },
8204 }
8205 }
8206
8207 pub fn layout(
8208 &mut self,
8209 origin: gpui::Point<Pixels>,
8210 cursor_name: Option<CursorName>,
8211 window: &mut Window,
8212 cx: &mut App,
8213 ) {
8214 if let Some(cursor_name) = cursor_name {
8215 let bounds = self.bounds(origin);
8216 let text_size = self.line_height / 1.5;
8217
8218 let name_origin = if cursor_name.is_top_row {
8219 point(bounds.right() - px(1.), bounds.top())
8220 } else {
8221 match self.shape {
8222 CursorShape::Bar => point(
8223 bounds.right() - px(2.),
8224 bounds.top() - text_size / 2. - px(1.),
8225 ),
8226 _ => point(
8227 bounds.right() - px(1.),
8228 bounds.top() - text_size / 2. - px(1.),
8229 ),
8230 }
8231 };
8232 let mut name_element = div()
8233 .bg(self.color)
8234 .text_size(text_size)
8235 .px_0p5()
8236 .line_height(text_size + px(2.))
8237 .text_color(cursor_name.color)
8238 .child(cursor_name.string.clone())
8239 .into_any_element();
8240
8241 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8242
8243 self.cursor_name = Some(name_element);
8244 }
8245 }
8246
8247 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8248 let bounds = self.bounds(origin);
8249
8250 //Draw background or border quad
8251 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8252 outline(bounds, self.color)
8253 } else {
8254 fill(bounds, self.color)
8255 };
8256
8257 if let Some(name) = &mut self.cursor_name {
8258 name.paint(window, cx);
8259 }
8260
8261 window.paint_quad(cursor);
8262
8263 if let Some(block_text) = &self.block_text {
8264 block_text
8265 .paint(self.origin + origin, self.line_height, window, cx)
8266 .log_err();
8267 }
8268 }
8269
8270 pub fn shape(&self) -> CursorShape {
8271 self.shape
8272 }
8273}
8274
8275#[derive(Debug)]
8276pub struct HighlightedRange {
8277 pub start_y: Pixels,
8278 pub line_height: Pixels,
8279 pub lines: Vec<HighlightedRangeLine>,
8280 pub color: Hsla,
8281 pub corner_radius: Pixels,
8282}
8283
8284#[derive(Debug)]
8285pub struct HighlightedRangeLine {
8286 pub start_x: Pixels,
8287 pub end_x: Pixels,
8288}
8289
8290impl HighlightedRange {
8291 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8292 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8293 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8294 self.paint_lines(
8295 self.start_y + self.line_height,
8296 &self.lines[1..],
8297 bounds,
8298 window,
8299 );
8300 } else {
8301 self.paint_lines(self.start_y, &self.lines, bounds, window);
8302 }
8303 }
8304
8305 fn paint_lines(
8306 &self,
8307 start_y: Pixels,
8308 lines: &[HighlightedRangeLine],
8309 _bounds: Bounds<Pixels>,
8310 window: &mut Window,
8311 ) {
8312 if lines.is_empty() {
8313 return;
8314 }
8315
8316 let first_line = lines.first().unwrap();
8317 let last_line = lines.last().unwrap();
8318
8319 let first_top_left = point(first_line.start_x, start_y);
8320 let first_top_right = point(first_line.end_x, start_y);
8321
8322 let curve_height = point(Pixels::ZERO, self.corner_radius);
8323 let curve_width = |start_x: Pixels, end_x: Pixels| {
8324 let max = (end_x - start_x) / 2.;
8325 let width = if max < self.corner_radius {
8326 max
8327 } else {
8328 self.corner_radius
8329 };
8330
8331 point(width, Pixels::ZERO)
8332 };
8333
8334 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8335 let mut builder = gpui::PathBuilder::fill();
8336 builder.move_to(first_top_right - top_curve_width);
8337 builder.curve_to(first_top_right + curve_height, first_top_right);
8338
8339 let mut iter = lines.iter().enumerate().peekable();
8340 while let Some((ix, line)) = iter.next() {
8341 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8342
8343 if let Some((_, next_line)) = iter.peek() {
8344 let next_top_right = point(next_line.end_x, bottom_right.y);
8345
8346 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8347 Ordering::Equal => {
8348 builder.line_to(bottom_right);
8349 }
8350 Ordering::Less => {
8351 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8352 builder.line_to(bottom_right - curve_height);
8353 if self.corner_radius > Pixels::ZERO {
8354 builder.curve_to(bottom_right - curve_width, bottom_right);
8355 }
8356 builder.line_to(next_top_right + curve_width);
8357 if self.corner_radius > Pixels::ZERO {
8358 builder.curve_to(next_top_right + curve_height, next_top_right);
8359 }
8360 }
8361 Ordering::Greater => {
8362 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8363 builder.line_to(bottom_right - curve_height);
8364 if self.corner_radius > Pixels::ZERO {
8365 builder.curve_to(bottom_right + curve_width, bottom_right);
8366 }
8367 builder.line_to(next_top_right - curve_width);
8368 if self.corner_radius > Pixels::ZERO {
8369 builder.curve_to(next_top_right + curve_height, next_top_right);
8370 }
8371 }
8372 }
8373 } else {
8374 let curve_width = curve_width(line.start_x, line.end_x);
8375 builder.line_to(bottom_right - curve_height);
8376 if self.corner_radius > Pixels::ZERO {
8377 builder.curve_to(bottom_right - curve_width, bottom_right);
8378 }
8379
8380 let bottom_left = point(line.start_x, bottom_right.y);
8381 builder.line_to(bottom_left + curve_width);
8382 if self.corner_radius > Pixels::ZERO {
8383 builder.curve_to(bottom_left - curve_height, bottom_left);
8384 }
8385 }
8386 }
8387
8388 if first_line.start_x > last_line.start_x {
8389 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8390 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8391 builder.line_to(second_top_left + curve_height);
8392 if self.corner_radius > Pixels::ZERO {
8393 builder.curve_to(second_top_left + curve_width, second_top_left);
8394 }
8395 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8396 builder.line_to(first_bottom_left - curve_width);
8397 if self.corner_radius > Pixels::ZERO {
8398 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8399 }
8400 }
8401
8402 builder.line_to(first_top_left + curve_height);
8403 if self.corner_radius > Pixels::ZERO {
8404 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8405 }
8406 builder.line_to(first_top_right - top_curve_width);
8407
8408 if let Ok(path) = builder.build() {
8409 window.paint_path(path, self.color);
8410 }
8411 }
8412}
8413
8414enum CursorPopoverType {
8415 CodeContextMenu,
8416 EditPrediction,
8417}
8418
8419pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8420 (delta.pow(1.5) / 100.0).into()
8421}
8422
8423fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8424 (delta.pow(1.2) / 300.0).into()
8425}
8426
8427pub fn register_action<T: Action>(
8428 editor: &Entity<Editor>,
8429 window: &mut Window,
8430 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8431) {
8432 let editor = editor.clone();
8433 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8434 let action = action.downcast_ref().unwrap();
8435 if phase == DispatchPhase::Bubble {
8436 editor.update(cx, |editor, cx| {
8437 listener(editor, action, window, cx);
8438 })
8439 }
8440 })
8441}
8442
8443fn compute_auto_height_layout(
8444 editor: &mut Editor,
8445 max_lines: usize,
8446 max_line_number_width: Pixels,
8447 known_dimensions: Size<Option<Pixels>>,
8448 available_width: AvailableSpace,
8449 window: &mut Window,
8450 cx: &mut Context<Editor>,
8451) -> Option<Size<Pixels>> {
8452 let width = known_dimensions.width.or({
8453 if let AvailableSpace::Definite(available_width) = available_width {
8454 Some(available_width)
8455 } else {
8456 None
8457 }
8458 })?;
8459 if let Some(height) = known_dimensions.height {
8460 return Some(size(width, height));
8461 }
8462
8463 let style = editor.style.as_ref().unwrap();
8464 let font_id = window.text_system().resolve_font(&style.text.font());
8465 let font_size = style.text.font_size.to_pixels(window.rem_size());
8466 let line_height = style.text.line_height_in_pixels(window.rem_size());
8467 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8468
8469 let mut snapshot = editor.snapshot(window, cx);
8470 let gutter_dimensions = snapshot
8471 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8472 .unwrap_or_default();
8473
8474 editor.gutter_dimensions = gutter_dimensions;
8475 let text_width = width - gutter_dimensions.width;
8476 let overscroll = size(em_width, px(0.));
8477
8478 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8479 if editor.set_wrap_width(Some(editor_width), cx) {
8480 snapshot = editor.snapshot(window, cx);
8481 }
8482
8483 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8484 let height = scroll_height
8485 .max(line_height)
8486 .min(line_height * max_lines as f32);
8487
8488 Some(size(width, height))
8489}
8490
8491#[cfg(test)]
8492mod tests {
8493 use super::*;
8494 use crate::{
8495 display_map::{BlockPlacement, BlockProperties},
8496 editor_tests::{init_test, update_test_language_settings},
8497 Editor, MultiBuffer,
8498 };
8499 use gpui::{TestAppContext, VisualTestContext};
8500 use language::language_settings;
8501 use log::info;
8502 use similar::DiffableStr;
8503 use std::num::NonZeroU32;
8504 use util::test::sample_text;
8505
8506 #[gpui::test]
8507 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8508 init_test(cx, |_| {});
8509 let window = cx.add_window(|window, cx| {
8510 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8511 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8512 });
8513
8514 let editor = window.root(cx).unwrap();
8515 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8516 let line_height = window
8517 .update(cx, |_, window, _| {
8518 style.text.line_height_in_pixels(window.rem_size())
8519 })
8520 .unwrap();
8521 let element = EditorElement::new(&editor, style);
8522 let snapshot = window
8523 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8524 .unwrap();
8525
8526 let layouts = cx
8527 .update_window(*window, |_, window, cx| {
8528 element.layout_line_numbers(
8529 None,
8530 GutterDimensions {
8531 left_padding: Pixels::ZERO,
8532 right_padding: Pixels::ZERO,
8533 width: px(30.0),
8534 margin: Pixels::ZERO,
8535 git_blame_entries_width: None,
8536 },
8537 line_height,
8538 gpui::Point::default(),
8539 DisplayRow(0)..DisplayRow(6),
8540 &(0..6)
8541 .map(|row| RowInfo {
8542 buffer_row: Some(row),
8543 ..Default::default()
8544 })
8545 .collect::<Vec<_>>(),
8546 Some(DisplayPoint::new(DisplayRow(0), 0)),
8547 &snapshot,
8548 window,
8549 cx,
8550 )
8551 })
8552 .unwrap();
8553 assert_eq!(layouts.len(), 6);
8554
8555 let relative_rows = window
8556 .update(cx, |editor, window, cx| {
8557 let snapshot = editor.snapshot(window, cx);
8558 element.calculate_relative_line_numbers(
8559 &snapshot,
8560 &(DisplayRow(0)..DisplayRow(6)),
8561 Some(DisplayRow(3)),
8562 )
8563 })
8564 .unwrap();
8565 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8566 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8567 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8568 // current line has no relative number
8569 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8570 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8571
8572 // works if cursor is before screen
8573 let relative_rows = window
8574 .update(cx, |editor, window, cx| {
8575 let snapshot = editor.snapshot(window, cx);
8576 element.calculate_relative_line_numbers(
8577 &snapshot,
8578 &(DisplayRow(3)..DisplayRow(6)),
8579 Some(DisplayRow(1)),
8580 )
8581 })
8582 .unwrap();
8583 assert_eq!(relative_rows.len(), 3);
8584 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8585 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8586 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8587
8588 // works if cursor is after screen
8589 let relative_rows = window
8590 .update(cx, |editor, window, cx| {
8591 let snapshot = editor.snapshot(window, cx);
8592 element.calculate_relative_line_numbers(
8593 &snapshot,
8594 &(DisplayRow(0)..DisplayRow(3)),
8595 Some(DisplayRow(6)),
8596 )
8597 })
8598 .unwrap();
8599 assert_eq!(relative_rows.len(), 3);
8600 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8601 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8602 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8603 }
8604
8605 #[gpui::test]
8606 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8607 init_test(cx, |_| {});
8608
8609 let window = cx.add_window(|window, cx| {
8610 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8611 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8612 });
8613 let cx = &mut VisualTestContext::from_window(*window, cx);
8614 let editor = window.root(cx).unwrap();
8615 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8616
8617 window
8618 .update(cx, |editor, window, cx| {
8619 editor.cursor_shape = CursorShape::Block;
8620 editor.change_selections(None, window, cx, |s| {
8621 s.select_ranges([
8622 Point::new(0, 0)..Point::new(1, 0),
8623 Point::new(3, 2)..Point::new(3, 3),
8624 Point::new(5, 6)..Point::new(6, 0),
8625 ]);
8626 });
8627 })
8628 .unwrap();
8629
8630 let (_, state) = cx.draw(
8631 point(px(500.), px(500.)),
8632 size(px(500.), px(500.)),
8633 |_, _| EditorElement::new(&editor, style),
8634 );
8635
8636 assert_eq!(state.selections.len(), 1);
8637 let local_selections = &state.selections[0].1;
8638 assert_eq!(local_selections.len(), 3);
8639 // moves cursor back one line
8640 assert_eq!(
8641 local_selections[0].head,
8642 DisplayPoint::new(DisplayRow(0), 6)
8643 );
8644 assert_eq!(
8645 local_selections[0].range,
8646 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8647 );
8648
8649 // moves cursor back one column
8650 assert_eq!(
8651 local_selections[1].range,
8652 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8653 );
8654 assert_eq!(
8655 local_selections[1].head,
8656 DisplayPoint::new(DisplayRow(3), 2)
8657 );
8658
8659 // leaves cursor on the max point
8660 assert_eq!(
8661 local_selections[2].range,
8662 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8663 );
8664 assert_eq!(
8665 local_selections[2].head,
8666 DisplayPoint::new(DisplayRow(6), 0)
8667 );
8668
8669 // active lines does not include 1 (even though the range of the selection does)
8670 assert_eq!(
8671 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8672 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8673 );
8674
8675 // multi-buffer support
8676 // in DisplayPoint coordinates, this is what we're dealing with:
8677 // 0: [[file
8678 // 1: header
8679 // 2: section]]
8680 // 3: aaaaaa
8681 // 4: bbbbbb
8682 // 5: cccccc
8683 // 6:
8684 // 7: [[footer]]
8685 // 8: [[header]]
8686 // 9: ffffff
8687 // 10: gggggg
8688 // 11: hhhhhh
8689 // 12:
8690 // 13: [[footer]]
8691 // 14: [[file
8692 // 15: header
8693 // 16: section]]
8694 // 17: bbbbbb
8695 // 18: cccccc
8696 // 19: dddddd
8697 // 20: [[footer]]
8698 let window = cx.add_window(|window, cx| {
8699 let buffer = MultiBuffer::build_multi(
8700 [
8701 (
8702 &(sample_text(8, 6, 'a') + "\n"),
8703 vec![
8704 Point::new(0, 0)..Point::new(3, 0),
8705 Point::new(4, 0)..Point::new(7, 0),
8706 ],
8707 ),
8708 (
8709 &(sample_text(8, 6, 'a') + "\n"),
8710 vec![Point::new(1, 0)..Point::new(3, 0)],
8711 ),
8712 ],
8713 cx,
8714 );
8715 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8716 });
8717 let editor = window.root(cx).unwrap();
8718 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8719 let _state = window.update(cx, |editor, window, cx| {
8720 editor.cursor_shape = CursorShape::Block;
8721 editor.change_selections(None, window, cx, |s| {
8722 s.select_display_ranges([
8723 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8724 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8725 ]);
8726 });
8727 });
8728
8729 let (_, state) = cx.draw(
8730 point(px(500.), px(500.)),
8731 size(px(500.), px(500.)),
8732 |_, _| EditorElement::new(&editor, style),
8733 );
8734 assert_eq!(state.selections.len(), 1);
8735 let local_selections = &state.selections[0].1;
8736 assert_eq!(local_selections.len(), 2);
8737
8738 // moves cursor on excerpt boundary back a line
8739 // and doesn't allow selection to bleed through
8740 assert_eq!(
8741 local_selections[0].range,
8742 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8743 );
8744 assert_eq!(
8745 local_selections[0].head,
8746 DisplayPoint::new(DisplayRow(6), 0)
8747 );
8748 // moves cursor on buffer boundary back two lines
8749 // and doesn't allow selection to bleed through
8750 assert_eq!(
8751 local_selections[1].range,
8752 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8753 );
8754 assert_eq!(
8755 local_selections[1].head,
8756 DisplayPoint::new(DisplayRow(12), 0)
8757 );
8758 }
8759
8760 #[gpui::test]
8761 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8762 init_test(cx, |_| {});
8763
8764 let window = cx.add_window(|window, cx| {
8765 let buffer = MultiBuffer::build_simple("", cx);
8766 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8767 });
8768 let cx = &mut VisualTestContext::from_window(*window, cx);
8769 let editor = window.root(cx).unwrap();
8770 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8771 window
8772 .update(cx, |editor, window, cx| {
8773 editor.set_placeholder_text("hello", cx);
8774 editor.insert_blocks(
8775 [BlockProperties {
8776 style: BlockStyle::Fixed,
8777 placement: BlockPlacement::Above(Anchor::min()),
8778 height: 3,
8779 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8780 priority: 0,
8781 }],
8782 None,
8783 cx,
8784 );
8785
8786 // Blur the editor so that it displays placeholder text.
8787 window.blur();
8788 })
8789 .unwrap();
8790
8791 let (_, state) = cx.draw(
8792 point(px(500.), px(500.)),
8793 size(px(500.), px(500.)),
8794 |_, _| EditorElement::new(&editor, style),
8795 );
8796 assert_eq!(state.position_map.line_layouts.len(), 4);
8797 assert_eq!(state.line_numbers.len(), 1);
8798 assert_eq!(
8799 state
8800 .line_numbers
8801 .get(&MultiBufferRow(0))
8802 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8803 Some("1")
8804 );
8805 }
8806
8807 #[gpui::test]
8808 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8809 const TAB_SIZE: u32 = 4;
8810
8811 let input_text = "\t \t|\t| a b";
8812 let expected_invisibles = vec![
8813 Invisible::Tab {
8814 line_start_offset: 0,
8815 line_end_offset: TAB_SIZE as usize,
8816 },
8817 Invisible::Whitespace {
8818 line_offset: TAB_SIZE as usize,
8819 },
8820 Invisible::Tab {
8821 line_start_offset: TAB_SIZE as usize + 1,
8822 line_end_offset: TAB_SIZE as usize * 2,
8823 },
8824 Invisible::Tab {
8825 line_start_offset: TAB_SIZE as usize * 2 + 1,
8826 line_end_offset: TAB_SIZE as usize * 3,
8827 },
8828 Invisible::Whitespace {
8829 line_offset: TAB_SIZE as usize * 3 + 1,
8830 },
8831 Invisible::Whitespace {
8832 line_offset: TAB_SIZE as usize * 3 + 3,
8833 },
8834 ];
8835 assert_eq!(
8836 expected_invisibles.len(),
8837 input_text
8838 .chars()
8839 .filter(|initial_char| initial_char.is_whitespace())
8840 .count(),
8841 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8842 );
8843
8844 for show_line_numbers in [true, false] {
8845 init_test(cx, |s| {
8846 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8847 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8848 });
8849
8850 let actual_invisibles = collect_invisibles_from_new_editor(
8851 cx,
8852 EditorMode::Full,
8853 input_text,
8854 px(500.0),
8855 show_line_numbers,
8856 );
8857
8858 assert_eq!(expected_invisibles, actual_invisibles);
8859 }
8860 }
8861
8862 #[gpui::test]
8863 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8864 init_test(cx, |s| {
8865 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8866 s.defaults.tab_size = NonZeroU32::new(4);
8867 });
8868
8869 for editor_mode_without_invisibles in [
8870 EditorMode::SingleLine { auto_width: false },
8871 EditorMode::AutoHeight { max_lines: 100 },
8872 ] {
8873 for show_line_numbers in [true, false] {
8874 let invisibles = collect_invisibles_from_new_editor(
8875 cx,
8876 editor_mode_without_invisibles,
8877 "\t\t\t| | a b",
8878 px(500.0),
8879 show_line_numbers,
8880 );
8881 assert!(invisibles.is_empty(),
8882 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8883 }
8884 }
8885 }
8886
8887 #[gpui::test]
8888 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8889 let tab_size = 4;
8890 let input_text = "a\tbcd ".repeat(9);
8891 let repeated_invisibles = [
8892 Invisible::Tab {
8893 line_start_offset: 1,
8894 line_end_offset: tab_size as usize,
8895 },
8896 Invisible::Whitespace {
8897 line_offset: tab_size as usize + 3,
8898 },
8899 Invisible::Whitespace {
8900 line_offset: tab_size as usize + 4,
8901 },
8902 Invisible::Whitespace {
8903 line_offset: tab_size as usize + 5,
8904 },
8905 Invisible::Whitespace {
8906 line_offset: tab_size as usize + 6,
8907 },
8908 Invisible::Whitespace {
8909 line_offset: tab_size as usize + 7,
8910 },
8911 ];
8912 let expected_invisibles = std::iter::once(repeated_invisibles)
8913 .cycle()
8914 .take(9)
8915 .flatten()
8916 .collect::<Vec<_>>();
8917 assert_eq!(
8918 expected_invisibles.len(),
8919 input_text
8920 .chars()
8921 .filter(|initial_char| initial_char.is_whitespace())
8922 .count(),
8923 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8924 );
8925 info!("Expected invisibles: {expected_invisibles:?}");
8926
8927 init_test(cx, |_| {});
8928
8929 // Put the same string with repeating whitespace pattern into editors of various size,
8930 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8931 let resize_step = 10.0;
8932 let mut editor_width = 200.0;
8933 while editor_width <= 1000.0 {
8934 for show_line_numbers in [true, false] {
8935 update_test_language_settings(cx, |s| {
8936 s.defaults.tab_size = NonZeroU32::new(tab_size);
8937 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8938 s.defaults.preferred_line_length = Some(editor_width as u32);
8939 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8940 });
8941
8942 let actual_invisibles = collect_invisibles_from_new_editor(
8943 cx,
8944 EditorMode::Full,
8945 &input_text,
8946 px(editor_width),
8947 show_line_numbers,
8948 );
8949
8950 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8951 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8952 let mut i = 0;
8953 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8954 i = actual_index;
8955 match expected_invisibles.get(i) {
8956 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8957 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8958 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8959 _ => {
8960 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8961 }
8962 },
8963 None => {
8964 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8965 }
8966 }
8967 }
8968 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8969 assert!(
8970 missing_expected_invisibles.is_empty(),
8971 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8972 );
8973
8974 editor_width += resize_step;
8975 }
8976 }
8977 }
8978
8979 fn collect_invisibles_from_new_editor(
8980 cx: &mut TestAppContext,
8981 editor_mode: EditorMode,
8982 input_text: &str,
8983 editor_width: Pixels,
8984 show_line_numbers: bool,
8985 ) -> Vec<Invisible> {
8986 info!(
8987 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8988 editor_width.0
8989 );
8990 let window = cx.add_window(|window, cx| {
8991 let buffer = MultiBuffer::build_simple(input_text, cx);
8992 Editor::new(editor_mode, buffer, None, true, window, cx)
8993 });
8994 let cx = &mut VisualTestContext::from_window(*window, cx);
8995 let editor = window.root(cx).unwrap();
8996
8997 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8998 window
8999 .update(cx, |editor, _, cx| {
9000 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
9001 editor.set_wrap_width(Some(editor_width), cx);
9002 editor.set_show_line_numbers(show_line_numbers, cx);
9003 })
9004 .unwrap();
9005 let (_, state) = cx.draw(
9006 point(px(500.), px(500.)),
9007 size(px(500.), px(500.)),
9008 |_, _| EditorElement::new(&editor, style),
9009 );
9010 state
9011 .position_map
9012 .line_layouts
9013 .iter()
9014 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
9015 .cloned()
9016 .collect()
9017 }
9018}
9019
9020fn diff_hunk_controls(
9021 row: u32,
9022 hunk_range: Range<Anchor>,
9023 line_height: Pixels,
9024 editor: &Entity<Editor>,
9025 _window: &mut Window,
9026 cx: &mut App,
9027) -> AnyElement {
9028 let stage = editor.update(cx, |editor, cx| {
9029 let snapshot = editor.buffer.read(cx).snapshot(cx);
9030 editor.has_stageable_diff_hunks_in_ranges(&[hunk_range.start..hunk_range.start], &snapshot)
9031 });
9032 h_flex()
9033 .h(line_height)
9034 .mr_1()
9035 .gap_1()
9036 .px_1()
9037 .pb_1()
9038 .border_b_1()
9039 .border_color(cx.theme().colors().border_variant)
9040 .rounded_b_lg()
9041 .bg(cx.theme().colors().editor_background)
9042 .gap_1()
9043 .child(
9044 IconButton::new(("discard-hunk", row as u64), IconName::Undo)
9045 .shape(IconButtonShape::Square)
9046 .icon_size(IconSize::Small)
9047 .tooltip({
9048 let focus_handle = editor.focus_handle(cx);
9049 move |window, cx| {
9050 Tooltip::for_action_in(
9051 "Discard Hunk",
9052 &RevertSelectedHunks,
9053 &focus_handle,
9054 window,
9055 cx,
9056 )
9057 }
9058 })
9059 .on_click({
9060 let editor = editor.clone();
9061 move |_event, window, cx| {
9062 editor.update(cx, |editor, cx| {
9063 let snapshot = editor.snapshot(window, cx);
9064 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9065 editor.discard_hunks_in_ranges([point..point].into_iter(), window, cx);
9066 });
9067 }
9068 }),
9069 )
9070 .child(
9071 Button::new(("skip-hunk", row as u64), "Skip")
9072 .label_size(LabelSize::Small)
9073 .tooltip({
9074 let focus_handle = editor.focus_handle(cx);
9075 move |window, cx| {
9076 Tooltip::for_action_in("Skip Hunk", &GoToHunk, &focus_handle, window, cx)
9077 }
9078 })
9079 .on_click({
9080 let editor = editor.clone();
9081 move |_event, window, cx| {
9082 editor.update(cx, |editor, cx| {
9083 let snapshot = editor.snapshot(window, cx);
9084 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
9085 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
9086 editor.expand_selected_diff_hunks(cx);
9087 });
9088 }
9089 }),
9090 )
9091 .child(
9092 Button::new(
9093 ("stage-unstage-hunk", row as u64),
9094 if stage { "Stage" } else { "Unstage" },
9095 )
9096 .label_size(LabelSize::Small)
9097 .tooltip({
9098 let focus_handle = editor.focus_handle(cx);
9099 move |window, cx| {
9100 Tooltip::for_action_in(
9101 if stage { "Stage Hunk" } else { "Unstage Hunk" },
9102 &ToggleStagedSelectedDiffHunks,
9103 &focus_handle,
9104 window,
9105 cx,
9106 )
9107 }
9108 })
9109 .on_click({
9110 let editor = editor.clone();
9111 move |_event, _window, cx| {
9112 editor.update(cx, |editor, cx| {
9113 editor
9114 .stage_or_unstage_diff_hunks(&[hunk_range.start..hunk_range.start], cx);
9115 });
9116 }
9117 }),
9118 )
9119 .into_any_element()
9120}