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