1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlineCompletion,
22 JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RevertSelectedHunks, RowExt,
23 RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap, StickyHeaderExcerpt,
24 ToPoint, ToggleFold, ToggleStagedSelectedDiffHunks, COLUMNAR_SELECTION_MODIFIERS,
25 CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
26 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
27};
28use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus};
29use client::ParticipantIndex;
30use collections::{BTreeMap, HashMap, HashSet};
31use file_icons::FileIcons;
32use git::{blame::BlameEntry, Oid};
33use gpui::{
34 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
35 point, px, quad, relative, size, svg, transparent_black, Action, AnyElement, App,
36 AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners,
37 CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable, FontId,
38 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
39 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
40 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
41 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
42 WeakEntity, Window,
43};
44use itertools::Itertools;
45use language::{
46 language_settings::{
47 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
48 ShowWhitespaceSetting,
49 },
50 ChunkRendererContext,
51};
52use lsp::DiagnosticSeverity;
53use multi_buffer::{
54 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
55 RowInfo, ToOffset,
56};
57use project::project_settings::{GitGutterSetting, ProjectSettings};
58use settings::Settings;
59use smallvec::{smallvec, SmallVec};
60use std::{
61 any::TypeId,
62 borrow::Cow,
63 cmp::{self, Ordering},
64 fmt::{self, Write},
65 iter, mem,
66 ops::{Deref, Range},
67 rc::Rc,
68 sync::Arc,
69};
70use sum_tree::Bias;
71use text::BufferId;
72use theme::{ActiveTheme, Appearance, PlayerColor};
73use ui::{
74 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
75 POPOVER_Y_PADDING,
76};
77use unicode_segmentation::UnicodeSegmentation;
78use util::{RangeExt, ResultExt};
79use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
80
81const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
82
83#[derive(Debug, Clone, PartialEq, Eq)]
84enum DisplayDiffHunk {
85 Folded {
86 display_row: DisplayRow,
87 },
88 Unfolded {
89 diff_base_byte_range: Range<usize>,
90 display_row_range: Range<DisplayRow>,
91 multi_buffer_range: Range<Anchor>,
92 status: DiffHunkStatus,
93 },
94}
95
96struct SelectionLayout {
97 head: DisplayPoint,
98 cursor_shape: CursorShape,
99 is_newest: bool,
100 is_local: bool,
101 range: Range<DisplayPoint>,
102 active_rows: Range<DisplayRow>,
103 user_name: Option<SharedString>,
104}
105
106impl SelectionLayout {
107 fn new<T: ToPoint + ToDisplayPoint + Clone>(
108 selection: Selection<T>,
109 line_mode: bool,
110 cursor_shape: CursorShape,
111 map: &DisplaySnapshot,
112 is_newest: bool,
113 is_local: bool,
114 user_name: Option<SharedString>,
115 ) -> Self {
116 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
117 let display_selection = point_selection.map(|p| p.to_display_point(map));
118 let mut range = display_selection.range();
119 let mut head = display_selection.head();
120 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
121 ..map.next_line_boundary(point_selection.end).1.row();
122
123 // vim visual line mode
124 if line_mode {
125 let point_range = map.expand_to_line(point_selection.range());
126 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
127 }
128
129 // any vim visual mode (including line mode)
130 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
131 && !range.is_empty()
132 && !selection.reversed
133 {
134 if head.column() > 0 {
135 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
136 } else if head.row().0 > 0 && head != map.max_point() {
137 head = map.clip_point(
138 DisplayPoint::new(
139 head.row().previous_row(),
140 map.line_len(head.row().previous_row()),
141 ),
142 Bias::Left,
143 );
144 // updating range.end is a no-op unless you're cursor is
145 // on the newline containing a multi-buffer divider
146 // in which case the clip_point may have moved the head up
147 // an additional row.
148 range.end = DisplayPoint::new(head.row().next_row(), 0);
149 active_rows.end = head.row();
150 }
151 }
152
153 Self {
154 head,
155 cursor_shape,
156 is_newest,
157 is_local,
158 range,
159 active_rows,
160 user_name,
161 }
162 }
163}
164
165pub struct EditorElement {
166 editor: Entity<Editor>,
167 style: EditorStyle,
168}
169
170type DisplayRowDelta = u32;
171
172impl EditorElement {
173 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
174
175 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
176 Self {
177 editor: editor.clone(),
178 style,
179 }
180 }
181
182 fn register_actions(&self, window: &mut Window, cx: &mut App) {
183 let editor = &self.editor;
184 editor.update(cx, |editor, cx| {
185 for action in editor.editor_actions.borrow().values() {
186 (action)(window, cx)
187 }
188 });
189
190 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
191 crate::clangd_ext::apply_related_actions(editor, window, cx);
192 register_action(editor, window, Editor::open_context_menu);
193 register_action(editor, window, Editor::move_left);
194 register_action(editor, window, Editor::move_right);
195 register_action(editor, window, Editor::move_down);
196 register_action(editor, window, Editor::move_down_by_lines);
197 register_action(editor, window, Editor::select_down_by_lines);
198 register_action(editor, window, Editor::move_up);
199 register_action(editor, window, Editor::move_up_by_lines);
200 register_action(editor, window, Editor::select_up_by_lines);
201 register_action(editor, window, Editor::select_page_down);
202 register_action(editor, window, Editor::select_page_up);
203 register_action(editor, window, Editor::cancel);
204 register_action(editor, window, Editor::newline);
205 register_action(editor, window, Editor::newline_above);
206 register_action(editor, window, Editor::newline_below);
207 register_action(editor, window, Editor::backspace);
208 register_action(editor, window, Editor::delete);
209 register_action(editor, window, Editor::tab);
210 register_action(editor, window, Editor::tab_prev);
211 register_action(editor, window, Editor::indent);
212 register_action(editor, window, Editor::outdent);
213 register_action(editor, window, Editor::autoindent);
214 register_action(editor, window, Editor::delete_line);
215 register_action(editor, window, Editor::join_lines);
216 register_action(editor, window, Editor::sort_lines_case_sensitive);
217 register_action(editor, window, Editor::sort_lines_case_insensitive);
218 register_action(editor, window, Editor::reverse_lines);
219 register_action(editor, window, Editor::shuffle_lines);
220 register_action(editor, window, Editor::convert_to_upper_case);
221 register_action(editor, window, Editor::convert_to_lower_case);
222 register_action(editor, window, Editor::convert_to_title_case);
223 register_action(editor, window, Editor::convert_to_snake_case);
224 register_action(editor, window, Editor::convert_to_kebab_case);
225 register_action(editor, window, Editor::convert_to_upper_camel_case);
226 register_action(editor, window, Editor::convert_to_lower_camel_case);
227 register_action(editor, window, Editor::convert_to_opposite_case);
228 register_action(editor, window, Editor::delete_to_previous_word_start);
229 register_action(editor, window, Editor::delete_to_previous_subword_start);
230 register_action(editor, window, Editor::delete_to_next_word_end);
231 register_action(editor, window, Editor::delete_to_next_subword_end);
232 register_action(editor, window, Editor::delete_to_beginning_of_line);
233 register_action(editor, window, Editor::delete_to_end_of_line);
234 register_action(editor, window, Editor::cut_to_end_of_line);
235 register_action(editor, window, Editor::duplicate_line_up);
236 register_action(editor, window, Editor::duplicate_line_down);
237 register_action(editor, window, Editor::duplicate_selection);
238 register_action(editor, window, Editor::move_line_up);
239 register_action(editor, window, Editor::move_line_down);
240 register_action(editor, window, Editor::transpose);
241 register_action(editor, window, Editor::rewrap);
242 register_action(editor, window, Editor::cut);
243 register_action(editor, window, Editor::kill_ring_cut);
244 register_action(editor, window, Editor::kill_ring_yank);
245 register_action(editor, window, Editor::copy);
246 register_action(editor, window, Editor::paste);
247 register_action(editor, window, Editor::undo);
248 register_action(editor, window, Editor::redo);
249 register_action(editor, window, Editor::move_page_up);
250 register_action(editor, window, Editor::move_page_down);
251 register_action(editor, window, Editor::next_screen);
252 register_action(editor, window, Editor::scroll_cursor_top);
253 register_action(editor, window, Editor::scroll_cursor_center);
254 register_action(editor, window, Editor::scroll_cursor_bottom);
255 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
256 register_action(editor, window, |editor, _: &LineDown, window, cx| {
257 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
258 });
259 register_action(editor, window, |editor, _: &LineUp, window, cx| {
260 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
261 });
262 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
263 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
264 });
265 register_action(
266 editor,
267 window,
268 |editor, HandleInput(text): &HandleInput, window, cx| {
269 if text.is_empty() {
270 return;
271 }
272 editor.handle_input(text, window, cx);
273 },
274 );
275 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
276 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
277 });
278 register_action(editor, window, |editor, _: &PageDown, window, cx| {
279 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
280 });
281 register_action(editor, window, |editor, _: &PageUp, window, cx| {
282 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
283 });
284 register_action(editor, window, Editor::move_to_previous_word_start);
285 register_action(editor, window, Editor::move_to_previous_subword_start);
286 register_action(editor, window, Editor::move_to_next_word_end);
287 register_action(editor, window, Editor::move_to_next_subword_end);
288 register_action(editor, window, Editor::move_to_beginning_of_line);
289 register_action(editor, window, Editor::move_to_end_of_line);
290 register_action(editor, window, Editor::move_to_start_of_paragraph);
291 register_action(editor, window, Editor::move_to_end_of_paragraph);
292 register_action(editor, window, Editor::move_to_beginning);
293 register_action(editor, window, Editor::move_to_end);
294 register_action(editor, window, Editor::select_up);
295 register_action(editor, window, Editor::select_down);
296 register_action(editor, window, Editor::select_left);
297 register_action(editor, window, Editor::select_right);
298 register_action(editor, window, Editor::select_to_previous_word_start);
299 register_action(editor, window, Editor::select_to_previous_subword_start);
300 register_action(editor, window, Editor::select_to_next_word_end);
301 register_action(editor, window, Editor::select_to_next_subword_end);
302 register_action(editor, window, Editor::select_to_beginning_of_line);
303 register_action(editor, window, Editor::select_to_end_of_line);
304 register_action(editor, window, Editor::select_to_start_of_paragraph);
305 register_action(editor, window, Editor::select_to_end_of_paragraph);
306 register_action(editor, window, Editor::select_to_beginning);
307 register_action(editor, window, Editor::select_to_end);
308 register_action(editor, window, Editor::select_all);
309 register_action(editor, window, |editor, action, window, cx| {
310 editor.select_all_matches(action, window, cx).log_err();
311 });
312 register_action(editor, window, Editor::select_line);
313 register_action(editor, window, Editor::split_selection_into_lines);
314 register_action(editor, window, Editor::add_selection_above);
315 register_action(editor, window, Editor::add_selection_below);
316 register_action(editor, window, |editor, action, window, cx| {
317 editor.select_next(action, window, cx).log_err();
318 });
319 register_action(editor, window, |editor, action, window, cx| {
320 editor.select_previous(action, window, cx).log_err();
321 });
322 register_action(editor, window, Editor::toggle_comments);
323 register_action(editor, window, Editor::select_larger_syntax_node);
324 register_action(editor, window, Editor::select_smaller_syntax_node);
325 register_action(editor, window, Editor::select_enclosing_symbol);
326 register_action(editor, window, Editor::move_to_enclosing_bracket);
327 register_action(editor, window, Editor::undo_selection);
328 register_action(editor, window, Editor::redo_selection);
329 if !editor.read(cx).is_singleton(cx) {
330 register_action(editor, window, Editor::expand_excerpts);
331 register_action(editor, window, Editor::expand_excerpts_up);
332 register_action(editor, window, Editor::expand_excerpts_down);
333 }
334 register_action(editor, window, Editor::go_to_diagnostic);
335 register_action(editor, window, Editor::go_to_prev_diagnostic);
336 register_action(editor, window, Editor::go_to_next_hunk);
337 register_action(editor, window, Editor::go_to_prev_hunk);
338 register_action(editor, window, |editor, action, window, cx| {
339 editor
340 .go_to_definition(action, window, cx)
341 .detach_and_log_err(cx);
342 });
343 register_action(editor, window, |editor, action, window, cx| {
344 editor
345 .go_to_definition_split(action, window, cx)
346 .detach_and_log_err(cx);
347 });
348 register_action(editor, window, |editor, action, window, cx| {
349 editor
350 .go_to_declaration(action, window, cx)
351 .detach_and_log_err(cx);
352 });
353 register_action(editor, window, |editor, action, window, cx| {
354 editor
355 .go_to_declaration_split(action, window, cx)
356 .detach_and_log_err(cx);
357 });
358 register_action(editor, window, |editor, action, window, cx| {
359 editor
360 .go_to_implementation(action, window, cx)
361 .detach_and_log_err(cx);
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor
365 .go_to_implementation_split(action, window, cx)
366 .detach_and_log_err(cx);
367 });
368 register_action(editor, window, |editor, action, window, cx| {
369 editor
370 .go_to_type_definition(action, window, cx)
371 .detach_and_log_err(cx);
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor
375 .go_to_type_definition_split(action, window, cx)
376 .detach_and_log_err(cx);
377 });
378 register_action(editor, window, Editor::open_url);
379 register_action(editor, window, Editor::open_selected_filename);
380 register_action(editor, window, Editor::fold);
381 register_action(editor, window, Editor::fold_at_level);
382 register_action(editor, window, Editor::fold_all);
383 register_action(editor, window, Editor::fold_function_bodies);
384 register_action(editor, window, Editor::fold_at);
385 register_action(editor, window, Editor::fold_recursive);
386 register_action(editor, window, Editor::toggle_fold);
387 register_action(editor, window, Editor::toggle_fold_recursive);
388 register_action(editor, window, Editor::unfold_lines);
389 register_action(editor, window, Editor::unfold_recursive);
390 register_action(editor, window, Editor::unfold_all);
391 register_action(editor, window, Editor::unfold_at);
392 register_action(editor, window, Editor::fold_selected_ranges);
393 register_action(editor, window, Editor::set_mark);
394 register_action(editor, window, Editor::swap_selection_ends);
395 register_action(editor, window, Editor::show_completions);
396 register_action(editor, window, Editor::toggle_code_actions);
397 register_action(editor, window, Editor::open_excerpts);
398 register_action(editor, window, Editor::open_excerpts_in_split);
399 register_action(editor, window, Editor::open_proposed_changes_editor);
400 register_action(editor, window, Editor::toggle_soft_wrap);
401 register_action(editor, window, Editor::toggle_tab_bar);
402 register_action(editor, window, Editor::toggle_line_numbers);
403 register_action(editor, window, Editor::toggle_relative_line_numbers);
404 register_action(editor, window, Editor::toggle_indent_guides);
405 register_action(editor, window, Editor::toggle_inlay_hints);
406 register_action(editor, window, Editor::toggle_inline_completions);
407 register_action(editor, window, hover_popover::hover);
408 register_action(editor, window, Editor::reveal_in_finder);
409 register_action(editor, window, Editor::copy_path);
410 register_action(editor, window, Editor::copy_relative_path);
411 register_action(editor, window, Editor::copy_file_name);
412 register_action(editor, window, Editor::copy_file_name_without_extension);
413 register_action(editor, window, Editor::copy_highlight_json);
414 register_action(editor, window, Editor::copy_permalink_to_line);
415 register_action(editor, window, Editor::open_permalink_to_line);
416 register_action(editor, window, Editor::copy_file_location);
417 register_action(editor, window, Editor::toggle_git_blame);
418 register_action(editor, window, Editor::toggle_git_blame_inline);
419 register_action(editor, window, Editor::toggle_selected_diff_hunks);
420 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
421 register_action(editor, window, Editor::expand_all_diff_hunks);
422
423 register_action(editor, window, |editor, action, window, cx| {
424 if let Some(task) = editor.format(action, window, cx) {
425 task.detach_and_notify_err(window, cx);
426 } else {
427 cx.propagate();
428 }
429 });
430 register_action(editor, window, |editor, action, window, cx| {
431 if let Some(task) = editor.format_selections(action, window, cx) {
432 task.detach_and_notify_err(window, cx);
433 } else {
434 cx.propagate();
435 }
436 });
437 register_action(editor, window, Editor::restart_language_server);
438 register_action(editor, window, Editor::show_character_palette);
439 register_action(editor, window, |editor, action, window, cx| {
440 if let Some(task) = editor.confirm_completion(action, window, cx) {
441 task.detach_and_notify_err(window, cx);
442 } else {
443 cx.propagate();
444 }
445 });
446 register_action(editor, window, |editor, action, window, cx| {
447 if let Some(task) = editor.compose_completion(action, window, cx) {
448 task.detach_and_notify_err(window, cx);
449 } else {
450 cx.propagate();
451 }
452 });
453 register_action(editor, window, |editor, action, window, cx| {
454 if let Some(task) = editor.confirm_code_action(action, window, cx) {
455 task.detach_and_notify_err(window, cx);
456 } else {
457 cx.propagate();
458 }
459 });
460 register_action(editor, window, |editor, action, window, cx| {
461 if let Some(task) = editor.rename(action, window, cx) {
462 task.detach_and_notify_err(window, cx);
463 } else {
464 cx.propagate();
465 }
466 });
467 register_action(editor, window, |editor, action, window, cx| {
468 if let Some(task) = editor.confirm_rename(action, window, cx) {
469 task.detach_and_notify_err(window, cx);
470 } else {
471 cx.propagate();
472 }
473 });
474 register_action(editor, window, |editor, action, window, cx| {
475 if let Some(task) = editor.find_all_references(action, window, cx) {
476 task.detach_and_log_err(cx);
477 } else {
478 cx.propagate();
479 }
480 });
481 register_action(editor, window, Editor::show_signature_help);
482 register_action(editor, window, Editor::next_edit_prediction);
483 register_action(editor, window, Editor::previous_edit_prediction);
484 register_action(editor, window, Editor::show_inline_completion);
485 register_action(editor, window, Editor::context_menu_first);
486 register_action(editor, window, Editor::context_menu_prev);
487 register_action(editor, window, Editor::context_menu_next);
488 register_action(editor, window, Editor::context_menu_last);
489 register_action(editor, window, Editor::display_cursor_names);
490 register_action(editor, window, Editor::unique_lines_case_insensitive);
491 register_action(editor, window, Editor::unique_lines_case_sensitive);
492 register_action(editor, window, Editor::accept_partial_inline_completion);
493 register_action(editor, window, Editor::accept_edit_prediction);
494 register_action(editor, window, Editor::revert_file);
495 register_action(editor, window, Editor::revert_selected_hunks);
496 register_action(editor, window, Editor::apply_all_diff_hunks);
497 register_action(editor, window, Editor::apply_selected_diff_hunks);
498 register_action(editor, window, Editor::open_active_item_in_terminal);
499 register_action(editor, window, Editor::reload_file);
500 register_action(editor, window, Editor::spawn_nearest_task);
501 register_action(editor, window, Editor::insert_uuid_v4);
502 register_action(editor, window, Editor::insert_uuid_v7);
503 register_action(editor, window, Editor::open_selections_in_multibuffer);
504 }
505
506 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
507 let position_map = layout.position_map.clone();
508 window.on_key_event({
509 let editor = self.editor.clone();
510 move |event: &ModifiersChangedEvent, phase, window, cx| {
511 if phase != DispatchPhase::Bubble {
512 return;
513 }
514 editor.update(cx, |editor, cx| {
515 if editor.hover_state.focused(window, cx) {
516 return;
517 }
518
519 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
520 })
521 }
522 });
523 }
524
525 fn mouse_left_down(
526 editor: &mut Editor,
527 event: &MouseDownEvent,
528 hovered_hunk: Option<Range<Anchor>>,
529 position_map: &PositionMap,
530 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
531 window: &mut Window,
532 cx: &mut Context<Editor>,
533 ) {
534 if window.default_prevented() {
535 return;
536 }
537
538 let text_hitbox = &position_map.text_hitbox;
539 let gutter_hitbox = &position_map.gutter_hitbox;
540 let mut click_count = event.click_count;
541 let mut modifiers = event.modifiers;
542
543 if let Some(hovered_hunk) = hovered_hunk {
544 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
545 cx.notify();
546 return;
547 } else if gutter_hitbox.is_hovered(window) {
548 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
549 } else if !text_hitbox.is_hovered(window) {
550 return;
551 }
552
553 let is_singleton = editor.buffer().read(cx).is_singleton();
554
555 if click_count == 2 && !is_singleton {
556 match EditorSettings::get_global(cx).double_click_in_multibuffer {
557 DoubleClickInMultibuffer::Select => {
558 // do nothing special on double click, all selection logic is below
559 }
560 DoubleClickInMultibuffer::Open => {
561 if modifiers.alt {
562 // if double click is made with alt, pretend it's a regular double click without opening and alt,
563 // and run the selection logic.
564 modifiers.alt = false;
565 } else {
566 let scroll_position_row =
567 position_map.scroll_pixel_position.y / position_map.line_height;
568 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
569 + position_map.scroll_pixel_position.y)
570 / position_map.line_height)
571 as u32;
572 let multi_buffer_row = position_map
573 .snapshot
574 .display_point_to_point(
575 DisplayPoint::new(DisplayRow(display_row), 0),
576 Bias::Right,
577 )
578 .row;
579 let line_offset_from_top = display_row - scroll_position_row as u32;
580 // if double click is made without alt, open the corresponding excerp
581 editor.open_excerpts_common(
582 Some(JumpData::MultiBufferRow {
583 row: MultiBufferRow(multi_buffer_row),
584 line_offset_from_top,
585 }),
586 false,
587 window,
588 cx,
589 );
590 return;
591 }
592 }
593 }
594 }
595
596 let point_for_position = position_map.point_for_position(event.position);
597 let position = point_for_position.previous_valid;
598 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
599 editor.select(
600 SelectPhase::BeginColumnar {
601 position,
602 reset: false,
603 goal_column: point_for_position.exact_unclipped.column(),
604 },
605 window,
606 cx,
607 );
608 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
609 {
610 editor.select(
611 SelectPhase::Extend {
612 position,
613 click_count,
614 },
615 window,
616 cx,
617 );
618 } else {
619 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
620 let multi_cursor_modifier = match multi_cursor_setting {
621 MultiCursorModifier::Alt => modifiers.alt,
622 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
623 };
624 editor.select(
625 SelectPhase::Begin {
626 position,
627 add: multi_cursor_modifier,
628 click_count,
629 },
630 window,
631 cx,
632 );
633 }
634 cx.stop_propagation();
635
636 if !is_singleton {
637 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
638 + position_map.scroll_pixel_position.y)
639 / position_map.line_height) as u32;
640 let multi_buffer_row = position_map
641 .snapshot
642 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
643 .row;
644 if line_numbers
645 .get(&MultiBufferRow(multi_buffer_row))
646 .and_then(|line_number| line_number.hitbox.as_ref())
647 .is_some_and(|hitbox| hitbox.contains(&event.position))
648 {
649 let scroll_position_row =
650 position_map.scroll_pixel_position.y / position_map.line_height;
651 let line_offset_from_top = display_row - scroll_position_row as u32;
652
653 editor.open_excerpts_common(
654 Some(JumpData::MultiBufferRow {
655 row: MultiBufferRow(multi_buffer_row),
656 line_offset_from_top,
657 }),
658 modifiers.alt,
659 window,
660 cx,
661 );
662 cx.stop_propagation();
663 }
664 }
665 }
666
667 fn mouse_right_down(
668 editor: &mut Editor,
669 event: &MouseDownEvent,
670 position_map: &PositionMap,
671 window: &mut Window,
672 cx: &mut Context<Editor>,
673 ) {
674 if !position_map.text_hitbox.is_hovered(window) {
675 return;
676 }
677 let point_for_position = position_map.point_for_position(event.position);
678 mouse_context_menu::deploy_context_menu(
679 editor,
680 Some(event.position),
681 point_for_position.previous_valid,
682 window,
683 cx,
684 );
685 cx.stop_propagation();
686 }
687
688 fn mouse_middle_down(
689 editor: &mut Editor,
690 event: &MouseDownEvent,
691 position_map: &PositionMap,
692 window: &mut Window,
693 cx: &mut Context<Editor>,
694 ) {
695 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
696 return;
697 }
698
699 let point_for_position = position_map.point_for_position(event.position);
700 let position = point_for_position.previous_valid;
701
702 editor.select(
703 SelectPhase::BeginColumnar {
704 position,
705 reset: true,
706 goal_column: point_for_position.exact_unclipped.column(),
707 },
708 window,
709 cx,
710 );
711 }
712
713 fn mouse_up(
714 editor: &mut Editor,
715 event: &MouseUpEvent,
716 position_map: &PositionMap,
717 window: &mut Window,
718 cx: &mut Context<Editor>,
719 ) {
720 let text_hitbox = &position_map.text_hitbox;
721 let end_selection = editor.has_pending_selection();
722 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
723
724 if end_selection {
725 editor.select(SelectPhase::End, window, cx);
726 }
727
728 if end_selection && pending_nonempty_selections {
729 cx.stop_propagation();
730 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
731 && event.button == MouseButton::Middle
732 {
733 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
734 return;
735 }
736
737 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
738 if EditorSettings::get_global(cx).middle_click_paste {
739 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
740 let point_for_position = position_map.point_for_position(event.position);
741 let position = point_for_position.previous_valid;
742
743 editor.select(
744 SelectPhase::Begin {
745 position,
746 add: false,
747 click_count: 1,
748 },
749 window,
750 cx,
751 );
752 editor.insert(&text, window, cx);
753 }
754 cx.stop_propagation()
755 }
756 }
757 }
758
759 fn click(
760 editor: &mut Editor,
761 event: &ClickEvent,
762 position_map: &PositionMap,
763 window: &mut Window,
764 cx: &mut Context<Editor>,
765 ) {
766 let text_hitbox = &position_map.text_hitbox;
767 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
768
769 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
770 let multi_cursor_modifier = match multi_cursor_setting {
771 MultiCursorModifier::Alt => event.modifiers().secondary(),
772 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
773 };
774
775 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
776 let point = position_map.point_for_position(event.up.position);
777 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
778
779 cx.stop_propagation();
780 }
781 }
782
783 fn mouse_dragged(
784 editor: &mut Editor,
785 event: &MouseMoveEvent,
786 position_map: &PositionMap,
787 window: &mut Window,
788 cx: &mut Context<Editor>,
789 ) {
790 if !editor.has_pending_selection() {
791 return;
792 }
793
794 let text_bounds = position_map.text_hitbox.bounds;
795 let point_for_position = position_map.point_for_position(event.position);
796 let mut scroll_delta = gpui::Point::<f32>::default();
797 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
798 let top = text_bounds.origin.y + vertical_margin;
799 let bottom = text_bounds.bottom_left().y - vertical_margin;
800 if event.position.y < top {
801 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
802 }
803 if event.position.y > bottom {
804 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
805 }
806
807 // We need horizontal width of text
808 let style = editor.style.clone().unwrap_or_default();
809 let font_id = window.text_system().resolve_font(&style.text.font());
810 let font_size = style.text.font_size.to_pixels(window.rem_size());
811 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
812
813 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
814
815 let scroll_space: Pixels = scroll_margin_x * em_width;
816
817 let left = text_bounds.origin.x + scroll_space;
818 let right = text_bounds.top_right().x - scroll_space;
819
820 if event.position.x < left {
821 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
822 }
823 if event.position.x > right {
824 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
825 }
826
827 editor.select(
828 SelectPhase::Update {
829 position: point_for_position.previous_valid,
830 goal_column: point_for_position.exact_unclipped.column(),
831 scroll_delta,
832 },
833 window,
834 cx,
835 );
836 }
837
838 fn mouse_moved(
839 editor: &mut Editor,
840 event: &MouseMoveEvent,
841 position_map: &PositionMap,
842 window: &mut Window,
843 cx: &mut Context<Editor>,
844 ) {
845 let text_hitbox = &position_map.text_hitbox;
846 let gutter_hitbox = &position_map.gutter_hitbox;
847 let modifiers = event.modifiers;
848 let gutter_hovered = gutter_hitbox.is_hovered(window);
849 editor.set_gutter_hovered(gutter_hovered, cx);
850
851 // Don't trigger hover popover if mouse is hovering over context menu
852 if text_hitbox.is_hovered(window) {
853 let point_for_position = position_map.point_for_position(event.position);
854
855 editor.update_hovered_link(
856 point_for_position,
857 &position_map.snapshot,
858 modifiers,
859 window,
860 cx,
861 );
862
863 if let Some(point) = point_for_position.as_valid() {
864 let anchor = position_map
865 .snapshot
866 .buffer_snapshot
867 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
868 hover_at(editor, Some(anchor), window, cx);
869 Self::update_visible_cursor(editor, point, position_map, window, cx);
870 } else {
871 hover_at(editor, None, window, cx);
872 }
873 } else {
874 editor.hide_hovered_link(cx);
875 hover_at(editor, None, window, cx);
876 if gutter_hovered {
877 cx.stop_propagation();
878 }
879 }
880 }
881
882 fn update_visible_cursor(
883 editor: &mut Editor,
884 point: DisplayPoint,
885 position_map: &PositionMap,
886 window: &mut Window,
887 cx: &mut Context<Editor>,
888 ) {
889 let snapshot = &position_map.snapshot;
890 let Some(hub) = editor.collaboration_hub() else {
891 return;
892 };
893 let start = snapshot.display_snapshot.clip_point(
894 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
895 Bias::Left,
896 );
897 let end = snapshot.display_snapshot.clip_point(
898 DisplayPoint::new(
899 point.row(),
900 (point.column() + 1).min(snapshot.line_len(point.row())),
901 ),
902 Bias::Right,
903 );
904
905 let range = snapshot
906 .buffer_snapshot
907 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
908 ..snapshot
909 .buffer_snapshot
910 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
911
912 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
913 return;
914 };
915 let key = crate::HoveredCursor {
916 replica_id: selection.replica_id,
917 selection_id: selection.selection.id,
918 };
919 editor.hovered_cursors.insert(
920 key.clone(),
921 cx.spawn_in(window, |editor, mut cx| async move {
922 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
923 editor
924 .update(&mut cx, |editor, cx| {
925 editor.hovered_cursors.remove(&key);
926 cx.notify();
927 })
928 .ok();
929 }),
930 );
931 cx.notify()
932 }
933
934 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 fn layout_visible_cursors(
1106 &self,
1107 snapshot: &EditorSnapshot,
1108 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1109 block_start_rows: &HashSet<DisplayRow>,
1110 visible_display_row_range: Range<DisplayRow>,
1111 line_layouts: &[LineWithInvisibles],
1112 text_hitbox: &Hitbox,
1113 content_origin: gpui::Point<Pixels>,
1114 scroll_position: gpui::Point<f32>,
1115 scroll_pixel_position: gpui::Point<Pixels>,
1116 line_height: Pixels,
1117 em_width: Pixels,
1118 em_advance: Pixels,
1119 autoscroll_containing_element: bool,
1120 window: &mut Window,
1121 cx: &mut App,
1122 ) -> Vec<CursorLayout> {
1123 let mut autoscroll_bounds = None;
1124 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1125 let mut cursors = Vec::new();
1126
1127 let show_local_cursors = editor.show_local_cursors(window, cx);
1128
1129 for (player_color, selections) in selections {
1130 for selection in selections {
1131 let cursor_position = selection.head;
1132
1133 let in_range = visible_display_row_range.contains(&cursor_position.row());
1134 if (selection.is_local && !show_local_cursors)
1135 || !in_range
1136 || block_start_rows.contains(&cursor_position.row())
1137 {
1138 continue;
1139 }
1140
1141 let cursor_row_layout = &line_layouts
1142 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1143 let cursor_column = cursor_position.column() as usize;
1144
1145 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1146 let mut block_width =
1147 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1148 if block_width == Pixels::ZERO {
1149 block_width = em_advance;
1150 }
1151 let block_text = if let CursorShape::Block = selection.cursor_shape {
1152 snapshot
1153 .grapheme_at(cursor_position)
1154 .or_else(|| {
1155 if cursor_column == 0 {
1156 snapshot.placeholder_text().and_then(|s| {
1157 s.graphemes(true).next().map(|s| s.to_string().into())
1158 })
1159 } else {
1160 None
1161 }
1162 })
1163 .and_then(|text| {
1164 let len = text.len();
1165
1166 let font = cursor_row_layout
1167 .font_id_for_index(cursor_column)
1168 .and_then(|cursor_font_id| {
1169 window.text_system().get_font_for_id(cursor_font_id)
1170 })
1171 .unwrap_or(self.style.text.font());
1172
1173 // Invert the text color for the block cursor. Ensure that the text
1174 // color is opaque enough to be visible against the background color.
1175 //
1176 // 0.75 is an arbitrary threshold to determine if the background color is
1177 // opaque enough to use as a text color.
1178 //
1179 // TODO: In the future we should ensure themes have a `text_inverse` color.
1180 let color = if cx.theme().colors().editor_background.a < 0.75 {
1181 match cx.theme().appearance {
1182 Appearance::Dark => Hsla::black(),
1183 Appearance::Light => Hsla::white(),
1184 }
1185 } else {
1186 cx.theme().colors().editor_background
1187 };
1188
1189 window
1190 .text_system()
1191 .shape_line(
1192 text,
1193 cursor_row_layout.font_size,
1194 &[TextRun {
1195 len,
1196 font,
1197 color,
1198 background_color: None,
1199 strikethrough: None,
1200 underline: None,
1201 }],
1202 )
1203 .log_err()
1204 })
1205 } else {
1206 None
1207 };
1208
1209 let x = cursor_character_x - scroll_pixel_position.x;
1210 let y = (cursor_position.row().as_f32()
1211 - scroll_pixel_position.y / line_height)
1212 * line_height;
1213 if selection.is_newest {
1214 editor.pixel_position_of_newest_cursor = Some(point(
1215 text_hitbox.origin.x + x + block_width / 2.,
1216 text_hitbox.origin.y + y + line_height / 2.,
1217 ));
1218
1219 if autoscroll_containing_element {
1220 let top = text_hitbox.origin.y
1221 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1222 * line_height;
1223 let left = text_hitbox.origin.x
1224 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1225 .max(0.)
1226 * em_width;
1227
1228 let bottom = text_hitbox.origin.y
1229 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1230 * line_height;
1231 let right = text_hitbox.origin.x
1232 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1233 * em_width;
1234
1235 autoscroll_bounds =
1236 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1237 }
1238 }
1239
1240 let mut cursor = CursorLayout {
1241 color: player_color.cursor,
1242 block_width,
1243 origin: point(x, y),
1244 line_height,
1245 shape: selection.cursor_shape,
1246 block_text,
1247 cursor_name: None,
1248 };
1249 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1250 string: name,
1251 color: self.style.background,
1252 is_top_row: cursor_position.row().0 == 0,
1253 });
1254 cursor.layout(content_origin, cursor_name, window, cx);
1255 cursors.push(cursor);
1256 }
1257 }
1258
1259 cursors
1260 });
1261
1262 if let Some(bounds) = autoscroll_bounds {
1263 window.request_autoscroll(bounds);
1264 }
1265
1266 cursor_layouts
1267 }
1268
1269 fn layout_scrollbars(
1270 &self,
1271 snapshot: &EditorSnapshot,
1272 scrollbar_range_data: ScrollbarRangeData,
1273 scroll_position: gpui::Point<f32>,
1274 non_visible_cursors: bool,
1275 window: &mut Window,
1276 cx: &mut App,
1277 ) -> AxisPair<Option<ScrollbarLayout>> {
1278 let letter_size = scrollbar_range_data.letter_size;
1279 let text_units_per_page = axis_pair(
1280 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1281 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1282 );
1283
1284 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1285 let show_scrollbars = self.editor.read(cx).show_scrollbars
1286 && match scrollbar_settings.show {
1287 ShowScrollbar::Auto => {
1288 let editor = self.editor.read(cx);
1289 let is_singleton = editor.is_singleton(cx);
1290 // Git
1291 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1292 ||
1293 // Buffer Search Results
1294 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1295 ||
1296 // Selected Text Occurrences
1297 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1298 ||
1299 // Selected Symbol Occurrences
1300 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1301 ||
1302 // Diagnostics
1303 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1304 ||
1305 // Cursors out of sight
1306 non_visible_cursors
1307 ||
1308 // Scrollmanager
1309 editor.scroll_manager.scrollbars_visible()
1310 }
1311 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1312 ShowScrollbar::Always => true,
1313 ShowScrollbar::Never => false,
1314 };
1315
1316 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1317
1318 if snapshot.mode != EditorMode::Full {
1319 return axis_pair(None, None);
1320 }
1321
1322 let visible_range = axis_pair(
1323 axes.horizontal
1324 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1325 axes.vertical
1326 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1327 );
1328
1329 // If a drag took place after we started dragging the scrollbar,
1330 // cancel the scrollbar drag.
1331 if cx.has_active_drag() {
1332 self.editor.update(cx, |editor, cx| {
1333 editor
1334 .scroll_manager
1335 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1336 editor
1337 .scroll_manager
1338 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1339 });
1340 }
1341
1342 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1343
1344 let track_bounds = axis_pair(
1345 axes.horizontal.then(|| {
1346 Bounds::from_corners(
1347 point(
1348 text_bounds.bottom_left().x,
1349 text_bounds.bottom_left().y - self.style.scrollbar_width,
1350 ),
1351 point(
1352 text_bounds.bottom_right().x
1353 - if axes.vertical {
1354 self.style.scrollbar_width
1355 } else {
1356 px(0.)
1357 },
1358 text_bounds.bottom_right().y,
1359 ),
1360 )
1361 }),
1362 axes.vertical.then(|| {
1363 Bounds::from_corners(
1364 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1365 text_bounds.bottom_right(),
1366 )
1367 }),
1368 );
1369
1370 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1371 let total_text_units = axis_pair(
1372 Some(scroll_range_size.width / letter_size.width),
1373 Some(scroll_range_size.height / letter_size.height),
1374 );
1375
1376 let thumb_size = axis_pair(
1377 total_text_units
1378 .horizontal
1379 .zip(track_bounds.horizontal)
1380 .and_then(|(total_text_units_x, track_bounds_x)| {
1381 if text_units_per_page.horizontal >= total_text_units_x {
1382 return None;
1383 }
1384
1385 let thumb_percent =
1386 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1387
1388 Some(track_bounds_x.size.width * thumb_percent)
1389 }),
1390 total_text_units.vertical.zip(track_bounds.vertical).map(
1391 |(total_text_units_y, track_bounds_y)| {
1392 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1393
1394 track_bounds_y.size.height * thumb_percent
1395 },
1396 ),
1397 );
1398
1399 // NOTE: Space not taken by track bounds divided by text units not on screen
1400 let text_unit_size = axis_pair(
1401 thumb_size
1402 .horizontal
1403 .zip(track_bounds.horizontal)
1404 .zip(total_text_units.horizontal)
1405 .map(|((thumb_size, track_bounds), total_text_units)| {
1406 (track_bounds.size.width - thumb_size)
1407 / (total_text_units - text_units_per_page.horizontal).max(0.)
1408 }),
1409 thumb_size
1410 .vertical
1411 .zip(track_bounds.vertical)
1412 .zip(total_text_units.vertical)
1413 .map(|((thumb_size, track_bounds), total_text_units)| {
1414 (track_bounds.size.height - thumb_size)
1415 / (total_text_units - text_units_per_page.vertical).max(0.)
1416 }),
1417 );
1418
1419 let horizontal_scrollbar = track_bounds
1420 .horizontal
1421 .zip(visible_range.horizontal)
1422 .zip(text_unit_size.horizontal)
1423 .zip(thumb_size.horizontal)
1424 .map(
1425 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1426 hitbox: window.insert_hitbox(track_bounds, false),
1427 visible_range,
1428 text_unit_size,
1429 visible: show_scrollbars,
1430 thumb_size,
1431 axis: Axis::Horizontal,
1432 },
1433 );
1434
1435 let vertical_scrollbar = track_bounds
1436 .vertical
1437 .zip(visible_range.vertical)
1438 .zip(text_unit_size.vertical)
1439 .zip(thumb_size.vertical)
1440 .map(
1441 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1442 hitbox: window.insert_hitbox(track_bounds, false),
1443 visible_range,
1444 text_unit_size,
1445 visible: show_scrollbars,
1446 thumb_size,
1447 axis: Axis::Vertical,
1448 },
1449 );
1450
1451 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1452 }
1453
1454 fn prepaint_crease_toggles(
1455 &self,
1456 crease_toggles: &mut [Option<AnyElement>],
1457 line_height: Pixels,
1458 gutter_dimensions: &GutterDimensions,
1459 gutter_settings: crate::editor_settings::Gutter,
1460 scroll_pixel_position: gpui::Point<Pixels>,
1461 gutter_hitbox: &Hitbox,
1462 window: &mut Window,
1463 cx: &mut App,
1464 ) {
1465 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1466 if let Some(crease_toggle) = crease_toggle {
1467 debug_assert!(gutter_settings.folds);
1468 let available_space = size(
1469 AvailableSpace::MinContent,
1470 AvailableSpace::Definite(line_height * 0.55),
1471 );
1472 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1473
1474 let position = point(
1475 gutter_dimensions.width - gutter_dimensions.right_padding,
1476 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1477 );
1478 let centering_offset = point(
1479 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1480 (line_height - crease_toggle_size.height) / 2.,
1481 );
1482 let origin = gutter_hitbox.origin + position + centering_offset;
1483 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1484 }
1485 }
1486 }
1487
1488 fn prepaint_crease_trailers(
1489 &self,
1490 trailers: Vec<Option<AnyElement>>,
1491 lines: &[LineWithInvisibles],
1492 line_height: Pixels,
1493 content_origin: gpui::Point<Pixels>,
1494 scroll_pixel_position: gpui::Point<Pixels>,
1495 em_width: Pixels,
1496 window: &mut Window,
1497 cx: &mut App,
1498 ) -> Vec<Option<CreaseTrailerLayout>> {
1499 trailers
1500 .into_iter()
1501 .enumerate()
1502 .map(|(ix, element)| {
1503 let mut element = element?;
1504 let available_space = size(
1505 AvailableSpace::MinContent,
1506 AvailableSpace::Definite(line_height),
1507 );
1508 let size = element.layout_as_root(available_space, window, cx);
1509
1510 let line = &lines[ix];
1511 let padding = if line.width == Pixels::ZERO {
1512 Pixels::ZERO
1513 } else {
1514 4. * em_width
1515 };
1516 let position = point(
1517 scroll_pixel_position.x + line.width + padding,
1518 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1519 );
1520 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1521 let origin = content_origin + position + centering_offset;
1522 element.prepaint_as_root(origin, available_space, window, cx);
1523 Some(CreaseTrailerLayout {
1524 element,
1525 bounds: Bounds::new(origin, size),
1526 })
1527 })
1528 .collect()
1529 }
1530
1531 // Folds contained in a hunk are ignored apart from shrinking visual size
1532 // If a fold contains any hunks then that fold line is marked as modified
1533 fn layout_gutter_diff_hunks(
1534 &self,
1535 line_height: Pixels,
1536 gutter_hitbox: &Hitbox,
1537 display_rows: Range<DisplayRow>,
1538 snapshot: &EditorSnapshot,
1539 window: &mut Window,
1540 cx: &mut App,
1541 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1542 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1543 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1544
1545 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1546 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1547
1548 for hunk in snapshot
1549 .buffer_snapshot
1550 .diff_hunks_in_range(buffer_start..buffer_end)
1551 {
1552 if folded_buffers.contains(&hunk.buffer_id) {
1553 continue;
1554 }
1555
1556 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1557 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1558
1559 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1560 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1561
1562 let display_hunk = if hunk_display_start.column() != 0 {
1563 DisplayDiffHunk::Folded {
1564 display_row: hunk_display_start.row(),
1565 }
1566 } else {
1567 let mut end_row = hunk_display_end.row();
1568 if hunk_display_end.column() > 0 {
1569 end_row.0 += 1;
1570 }
1571 DisplayDiffHunk::Unfolded {
1572 status: hunk.status(),
1573 diff_base_byte_range: hunk.diff_base_byte_range,
1574 display_row_range: hunk_display_start.row()..end_row,
1575 multi_buffer_range: Anchor::range_in_buffer(
1576 hunk.excerpt_id,
1577 hunk.buffer_id,
1578 hunk.buffer_range,
1579 ),
1580 }
1581 };
1582
1583 display_hunks.push((display_hunk, None));
1584 }
1585
1586 let git_gutter_setting = ProjectSettings::get_global(cx)
1587 .git
1588 .git_gutter
1589 .unwrap_or_default();
1590 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1591 for (hunk, hitbox) in &mut display_hunks {
1592 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1593 let hunk_bounds =
1594 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1595 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1596 }
1597 }
1598 }
1599
1600 display_hunks
1601 }
1602
1603 fn layout_inline_blame(
1604 &self,
1605 display_row: DisplayRow,
1606 row_info: &RowInfo,
1607 line_layout: &LineWithInvisibles,
1608 crease_trailer: Option<&CreaseTrailerLayout>,
1609 em_width: Pixels,
1610 content_origin: gpui::Point<Pixels>,
1611 scroll_pixel_position: gpui::Point<Pixels>,
1612 line_height: Pixels,
1613 window: &mut Window,
1614 cx: &mut App,
1615 ) -> Option<AnyElement> {
1616 if !self
1617 .editor
1618 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1619 {
1620 return None;
1621 }
1622
1623 let workspace = self
1624 .editor
1625 .read(cx)
1626 .workspace
1627 .as_ref()
1628 .map(|(w, _)| w.clone());
1629
1630 let editor = self.editor.read(cx);
1631 let blame = editor.blame.clone()?;
1632 let padding = {
1633 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1634 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1635
1636 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1637
1638 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1639 match &inline_completion.completion {
1640 InlineCompletion::Edit {
1641 display_mode: EditDisplayMode::TabAccept,
1642 ..
1643 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1644 _ => {}
1645 }
1646 }
1647
1648 padding * em_width
1649 };
1650
1651 let blame_entry = blame
1652 .update(cx, |blame, cx| {
1653 blame.blame_for_rows(&[*row_info], cx).next()
1654 })
1655 .flatten()?;
1656
1657 let mut element =
1658 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1659
1660 let start_y = content_origin.y
1661 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1662
1663 let start_x = {
1664 let line_end = if let Some(crease_trailer) = crease_trailer {
1665 crease_trailer.bounds.right()
1666 } else {
1667 content_origin.x - scroll_pixel_position.x + line_layout.width
1668 };
1669
1670 let padded_line_end = line_end + padding;
1671
1672 let min_column_in_pixels = ProjectSettings::get_global(cx)
1673 .git
1674 .inline_blame
1675 .and_then(|settings| settings.min_column)
1676 .map(|col| self.column_pixels(col as usize, window, cx))
1677 .unwrap_or(px(0.));
1678 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1679
1680 cmp::max(padded_line_end, min_start)
1681 };
1682
1683 let absolute_offset = point(start_x, start_y);
1684 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1685
1686 Some(element)
1687 }
1688
1689 fn layout_blame_entries(
1690 &self,
1691 buffer_rows: &[RowInfo],
1692 em_width: Pixels,
1693 scroll_position: gpui::Point<f32>,
1694 line_height: Pixels,
1695 gutter_hitbox: &Hitbox,
1696 max_width: Option<Pixels>,
1697 window: &mut Window,
1698 cx: &mut App,
1699 ) -> Option<Vec<AnyElement>> {
1700 if !self
1701 .editor
1702 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1703 {
1704 return None;
1705 }
1706
1707 let blame = self.editor.read(cx).blame.clone()?;
1708 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1709 blame.blame_for_rows(buffer_rows, cx).collect()
1710 });
1711
1712 let width = if let Some(max_width) = max_width {
1713 AvailableSpace::Definite(max_width)
1714 } else {
1715 AvailableSpace::MaxContent
1716 };
1717 let scroll_top = scroll_position.y * line_height;
1718 let start_x = em_width;
1719
1720 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1721
1722 let shaped_lines = blamed_rows
1723 .into_iter()
1724 .enumerate()
1725 .flat_map(|(ix, blame_entry)| {
1726 if let Some(blame_entry) = blame_entry {
1727 let mut element = render_blame_entry(
1728 ix,
1729 &blame,
1730 blame_entry,
1731 &self.style,
1732 &mut last_used_color,
1733 self.editor.clone(),
1734 cx,
1735 );
1736
1737 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1738 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1739
1740 element.prepaint_as_root(
1741 absolute_offset,
1742 size(width, AvailableSpace::MinContent),
1743 window,
1744 cx,
1745 );
1746
1747 Some(element)
1748 } else {
1749 None
1750 }
1751 })
1752 .collect();
1753
1754 Some(shaped_lines)
1755 }
1756
1757 fn layout_indent_guides(
1758 &self,
1759 content_origin: gpui::Point<Pixels>,
1760 text_origin: gpui::Point<Pixels>,
1761 visible_buffer_range: Range<MultiBufferRow>,
1762 scroll_pixel_position: gpui::Point<Pixels>,
1763 line_height: Pixels,
1764 snapshot: &DisplaySnapshot,
1765 window: &mut Window,
1766 cx: &mut App,
1767 ) -> Option<Vec<IndentGuideLayout>> {
1768 let indent_guides = self.editor.update(cx, |editor, cx| {
1769 editor.indent_guides(visible_buffer_range, snapshot, cx)
1770 })?;
1771
1772 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1773 editor
1774 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1775 .unwrap_or_default()
1776 });
1777
1778 Some(
1779 indent_guides
1780 .into_iter()
1781 .enumerate()
1782 .filter_map(|(i, indent_guide)| {
1783 let single_indent_width =
1784 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1785 let total_width = single_indent_width * indent_guide.depth as f32;
1786 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1787 if start_x >= text_origin.x {
1788 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1789 indent_guide.start_row..indent_guide.end_row,
1790 line_height,
1791 snapshot,
1792 );
1793
1794 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1795
1796 Some(IndentGuideLayout {
1797 origin: point(start_x, start_y),
1798 length,
1799 single_indent_width,
1800 depth: indent_guide.depth,
1801 active: active_indent_guide_indices.contains(&i),
1802 settings: indent_guide.settings,
1803 })
1804 } else {
1805 None
1806 }
1807 })
1808 .collect(),
1809 )
1810 }
1811
1812 fn calculate_indent_guide_bounds(
1813 row_range: Range<MultiBufferRow>,
1814 line_height: Pixels,
1815 snapshot: &DisplaySnapshot,
1816 ) -> (gpui::Pixels, gpui::Pixels) {
1817 let start_point = Point::new(row_range.start.0, 0);
1818 let end_point = Point::new(row_range.end.0, 0);
1819
1820 let row_range = start_point.to_display_point(snapshot).row()
1821 ..end_point.to_display_point(snapshot).row();
1822
1823 let mut prev_line = start_point;
1824 prev_line.row = prev_line.row.saturating_sub(1);
1825 let prev_line = prev_line.to_display_point(snapshot).row();
1826
1827 let mut cons_line = end_point;
1828 cons_line.row += 1;
1829 let cons_line = cons_line.to_display_point(snapshot).row();
1830
1831 let mut offset_y = row_range.start.0 as f32 * line_height;
1832 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1833
1834 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1835 if row_range.end == cons_line {
1836 length += line_height;
1837 }
1838
1839 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1840 // we want to extend the indent guide to the start of the block.
1841 let mut block_height = 0;
1842 let mut block_offset = 0;
1843 let mut found_excerpt_header = false;
1844 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1845 if matches!(block, Block::ExcerptBoundary { .. }) {
1846 found_excerpt_header = true;
1847 break;
1848 }
1849 block_offset += block.height();
1850 block_height += block.height();
1851 }
1852 if !found_excerpt_header {
1853 offset_y -= block_offset as f32 * line_height;
1854 length += block_height as f32 * line_height;
1855 }
1856
1857 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1858 // we want to ensure that the indent guide stops before the excerpt header.
1859 let mut block_height = 0;
1860 let mut found_excerpt_header = false;
1861 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1862 if matches!(block, Block::ExcerptBoundary { .. }) {
1863 found_excerpt_header = true;
1864 }
1865 block_height += block.height();
1866 }
1867 if found_excerpt_header {
1868 length -= block_height as f32 * line_height;
1869 }
1870
1871 (offset_y, length)
1872 }
1873
1874 fn layout_run_indicators(
1875 &self,
1876 line_height: Pixels,
1877 range: Range<DisplayRow>,
1878 scroll_pixel_position: gpui::Point<Pixels>,
1879 gutter_dimensions: &GutterDimensions,
1880 gutter_hitbox: &Hitbox,
1881 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1882 snapshot: &EditorSnapshot,
1883 window: &mut Window,
1884 cx: &mut App,
1885 ) -> Vec<AnyElement> {
1886 self.editor.update(cx, |editor, cx| {
1887 let active_task_indicator_row =
1888 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1889 deployed_from_indicator,
1890 actions,
1891 ..
1892 })) = editor.context_menu.borrow().as_ref()
1893 {
1894 actions
1895 .tasks
1896 .as_ref()
1897 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1898 .or(*deployed_from_indicator)
1899 } else {
1900 None
1901 };
1902
1903 let offset_range_start = snapshot
1904 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1905 .to_offset(&snapshot.buffer_snapshot);
1906 let offset_range_end = snapshot
1907 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1908 .to_offset(&snapshot.buffer_snapshot);
1909
1910 editor
1911 .tasks
1912 .iter()
1913 .filter_map(|(_, tasks)| {
1914 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1915 return None;
1916 }
1917 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1918 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1919 let buffer_folded = snapshot
1920 .buffer_snapshot
1921 .buffer_line_for_row(multibuffer_row)
1922 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1923 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1924 .unwrap_or(false);
1925 if buffer_folded {
1926 return None;
1927 }
1928
1929 if snapshot.is_line_folded(multibuffer_row) {
1930 // Skip folded indicators, unless it's the starting line of a fold.
1931 if multibuffer_row
1932 .0
1933 .checked_sub(1)
1934 .map_or(false, |previous_row| {
1935 snapshot.is_line_folded(MultiBufferRow(previous_row))
1936 })
1937 {
1938 return None;
1939 }
1940 }
1941 let display_row = multibuffer_point.to_display_point(snapshot).row();
1942 let button = editor.render_run_indicator(
1943 &self.style,
1944 Some(display_row) == active_task_indicator_row,
1945 display_row,
1946 cx,
1947 );
1948
1949 let button = prepaint_gutter_button(
1950 button,
1951 display_row,
1952 line_height,
1953 gutter_dimensions,
1954 scroll_pixel_position,
1955 gutter_hitbox,
1956 rows_with_hunk_bounds,
1957 window,
1958 cx,
1959 );
1960 Some(button)
1961 })
1962 .collect_vec()
1963 })
1964 }
1965
1966 fn layout_code_actions_indicator(
1967 &self,
1968 line_height: Pixels,
1969 newest_selection_head: DisplayPoint,
1970 scroll_pixel_position: gpui::Point<Pixels>,
1971 gutter_dimensions: &GutterDimensions,
1972 gutter_hitbox: &Hitbox,
1973 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1974 window: &mut Window,
1975 cx: &mut App,
1976 ) -> Option<AnyElement> {
1977 let mut active = false;
1978 let mut button = None;
1979 let row = newest_selection_head.row();
1980 self.editor.update(cx, |editor, cx| {
1981 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1982 deployed_from_indicator,
1983 ..
1984 })) = editor.context_menu.borrow().as_ref()
1985 {
1986 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1987 };
1988 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1989 });
1990
1991 let button = prepaint_gutter_button(
1992 button?,
1993 row,
1994 line_height,
1995 gutter_dimensions,
1996 scroll_pixel_position,
1997 gutter_hitbox,
1998 rows_with_hunk_bounds,
1999 window,
2000 cx,
2001 );
2002
2003 Some(button)
2004 }
2005
2006 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2007 if let Some(index) = participant_index {
2008 cx.theme().players().color_for_participant(index.0)
2009 } else {
2010 cx.theme().players().absent()
2011 }
2012 }
2013
2014 fn calculate_relative_line_numbers(
2015 &self,
2016 snapshot: &EditorSnapshot,
2017 rows: &Range<DisplayRow>,
2018 relative_to: Option<DisplayRow>,
2019 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2020 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2021 let Some(relative_to) = relative_to else {
2022 return relative_rows;
2023 };
2024
2025 let start = rows.start.min(relative_to);
2026 let end = rows.end.max(relative_to);
2027
2028 let buffer_rows = snapshot
2029 .row_infos(start)
2030 .take(1 + end.minus(start) as usize)
2031 .collect::<Vec<_>>();
2032
2033 let head_idx = relative_to.minus(start);
2034 let mut delta = 1;
2035 let mut i = head_idx + 1;
2036 while i < buffer_rows.len() as u32 {
2037 if buffer_rows[i as usize].buffer_row.is_some() {
2038 if rows.contains(&DisplayRow(i + start.0)) {
2039 relative_rows.insert(DisplayRow(i + start.0), delta);
2040 }
2041 delta += 1;
2042 }
2043 i += 1;
2044 }
2045 delta = 1;
2046 i = head_idx.min(buffer_rows.len() as u32 - 1);
2047 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2048 i -= 1;
2049 }
2050
2051 while i > 0 {
2052 i -= 1;
2053 if buffer_rows[i as usize].buffer_row.is_some() {
2054 if rows.contains(&DisplayRow(i + start.0)) {
2055 relative_rows.insert(DisplayRow(i + start.0), delta);
2056 }
2057 delta += 1;
2058 }
2059 }
2060
2061 relative_rows
2062 }
2063
2064 fn layout_line_numbers(
2065 &self,
2066 gutter_hitbox: Option<&Hitbox>,
2067 gutter_dimensions: GutterDimensions,
2068 line_height: Pixels,
2069 scroll_position: gpui::Point<f32>,
2070 rows: Range<DisplayRow>,
2071 buffer_rows: &[RowInfo],
2072 newest_selection_head: Option<DisplayPoint>,
2073 snapshot: &EditorSnapshot,
2074 window: &mut Window,
2075 cx: &mut App,
2076 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2077 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2078 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2079 });
2080 if !include_line_numbers {
2081 return Arc::default();
2082 }
2083
2084 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2085 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2086 let newest = editor.selections.newest::<Point>(cx);
2087 SelectionLayout::new(
2088 newest,
2089 editor.selections.line_mode,
2090 editor.cursor_shape,
2091 &snapshot.display_snapshot,
2092 true,
2093 true,
2094 None,
2095 )
2096 .head
2097 });
2098 let is_relative = editor.should_use_relative_line_numbers(cx);
2099 (newest_selection_head, is_relative)
2100 });
2101
2102 let relative_to = if is_relative {
2103 Some(newest_selection_head.row())
2104 } else {
2105 None
2106 };
2107 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2108 let mut line_number = String::new();
2109 let line_numbers = buffer_rows
2110 .into_iter()
2111 .enumerate()
2112 .flat_map(|(ix, row_info)| {
2113 let display_row = DisplayRow(rows.start.0 + ix as u32);
2114 line_number.clear();
2115 let non_relative_number = row_info.buffer_row? + 1;
2116 let number = relative_rows
2117 .get(&display_row)
2118 .unwrap_or(&non_relative_number);
2119 write!(&mut line_number, "{number}").unwrap();
2120 if matches!(row_info.diff_status, Some(DiffHunkStatus::Removed(_))) {
2121 return None;
2122 }
2123
2124 let color = cx.theme().colors().editor_line_number;
2125 let shaped_line = self
2126 .shape_line_number(SharedString::from(&line_number), color, window)
2127 .log_err()?;
2128 let scroll_top = scroll_position.y * line_height;
2129 let line_origin = gutter_hitbox.map(|hitbox| {
2130 hitbox.origin
2131 + point(
2132 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2133 ix as f32 * line_height - (scroll_top % line_height),
2134 )
2135 });
2136
2137 #[cfg(not(test))]
2138 let hitbox = line_origin.map(|line_origin| {
2139 window.insert_hitbox(
2140 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2141 false,
2142 )
2143 });
2144 #[cfg(test)]
2145 let hitbox = {
2146 let _ = line_origin;
2147 None
2148 };
2149
2150 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2151 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2152 let line_number = LineNumberLayout {
2153 shaped_line,
2154 hitbox,
2155 display_row,
2156 };
2157 Some((multi_buffer_row, line_number))
2158 })
2159 .collect();
2160 Arc::new(line_numbers)
2161 }
2162
2163 fn layout_crease_toggles(
2164 &self,
2165 rows: Range<DisplayRow>,
2166 row_infos: &[RowInfo],
2167 active_rows: &BTreeMap<DisplayRow, bool>,
2168 snapshot: &EditorSnapshot,
2169 window: &mut Window,
2170 cx: &mut App,
2171 ) -> Vec<Option<AnyElement>> {
2172 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2173 && snapshot.mode == EditorMode::Full
2174 && self.editor.read(cx).is_singleton(cx);
2175 if include_fold_statuses {
2176 row_infos
2177 .into_iter()
2178 .enumerate()
2179 .map(|(ix, info)| {
2180 let row = info.multibuffer_row?;
2181 let display_row = DisplayRow(rows.start.0 + ix as u32);
2182 let active = active_rows.contains_key(&display_row);
2183
2184 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2185 })
2186 .collect()
2187 } else {
2188 Vec::new()
2189 }
2190 }
2191
2192 fn layout_crease_trailers(
2193 &self,
2194 buffer_rows: impl IntoIterator<Item = RowInfo>,
2195 snapshot: &EditorSnapshot,
2196 window: &mut Window,
2197 cx: &mut App,
2198 ) -> Vec<Option<AnyElement>> {
2199 buffer_rows
2200 .into_iter()
2201 .map(|row_info| {
2202 if let Some(row) = row_info.multibuffer_row {
2203 snapshot.render_crease_trailer(row, window, cx)
2204 } else {
2205 None
2206 }
2207 })
2208 .collect()
2209 }
2210
2211 fn layout_lines(
2212 rows: Range<DisplayRow>,
2213 snapshot: &EditorSnapshot,
2214 style: &EditorStyle,
2215 editor_width: Pixels,
2216 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2217 window: &mut Window,
2218 cx: &mut App,
2219 ) -> Vec<LineWithInvisibles> {
2220 if rows.start >= rows.end {
2221 return Vec::new();
2222 }
2223
2224 // Show the placeholder when the editor is empty
2225 if snapshot.is_empty() {
2226 let font_size = style.text.font_size.to_pixels(window.rem_size());
2227 let placeholder_color = cx.theme().colors().text_placeholder;
2228 let placeholder_text = snapshot.placeholder_text();
2229
2230 let placeholder_lines = placeholder_text
2231 .as_ref()
2232 .map_or("", AsRef::as_ref)
2233 .split('\n')
2234 .skip(rows.start.0 as usize)
2235 .chain(iter::repeat(""))
2236 .take(rows.len());
2237 placeholder_lines
2238 .filter_map(move |line| {
2239 let run = TextRun {
2240 len: line.len(),
2241 font: style.text.font(),
2242 color: placeholder_color,
2243 background_color: None,
2244 underline: Default::default(),
2245 strikethrough: None,
2246 };
2247 window
2248 .text_system()
2249 .shape_line(line.to_string().into(), font_size, &[run])
2250 .log_err()
2251 })
2252 .map(|line| LineWithInvisibles {
2253 width: line.width,
2254 len: line.len,
2255 fragments: smallvec![LineFragment::Text(line)],
2256 invisibles: Vec::new(),
2257 font_size,
2258 })
2259 .collect()
2260 } else {
2261 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2262 LineWithInvisibles::from_chunks(
2263 chunks,
2264 &style,
2265 MAX_LINE_LEN,
2266 rows.len(),
2267 snapshot.mode,
2268 editor_width,
2269 is_row_soft_wrapped,
2270 window,
2271 cx,
2272 )
2273 }
2274 }
2275
2276 fn prepaint_lines(
2277 &self,
2278 start_row: DisplayRow,
2279 line_layouts: &mut [LineWithInvisibles],
2280 line_height: Pixels,
2281 scroll_pixel_position: gpui::Point<Pixels>,
2282 content_origin: gpui::Point<Pixels>,
2283 window: &mut Window,
2284 cx: &mut App,
2285 ) -> SmallVec<[AnyElement; 1]> {
2286 let mut line_elements = SmallVec::new();
2287 for (ix, line) in line_layouts.iter_mut().enumerate() {
2288 let row = start_row + DisplayRow(ix as u32);
2289 line.prepaint(
2290 line_height,
2291 scroll_pixel_position,
2292 row,
2293 content_origin,
2294 &mut line_elements,
2295 window,
2296 cx,
2297 );
2298 }
2299 line_elements
2300 }
2301
2302 fn render_block(
2303 &self,
2304 block: &Block,
2305 available_width: AvailableSpace,
2306 block_id: BlockId,
2307 block_row_start: DisplayRow,
2308 snapshot: &EditorSnapshot,
2309 text_x: Pixels,
2310 rows: &Range<DisplayRow>,
2311 line_layouts: &[LineWithInvisibles],
2312 gutter_dimensions: &GutterDimensions,
2313 line_height: Pixels,
2314 em_width: Pixels,
2315 text_hitbox: &Hitbox,
2316 editor_width: Pixels,
2317 scroll_width: &mut Pixels,
2318 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2319 selections: &[Selection<Point>],
2320 selected_buffer_ids: &Vec<BufferId>,
2321 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2322 sticky_header_excerpt_id: Option<ExcerptId>,
2323 window: &mut Window,
2324 cx: &mut App,
2325 ) -> (AnyElement, Size<Pixels>) {
2326 let mut element = match block {
2327 Block::Custom(block) => {
2328 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2329 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2330 let align_to = block_start.to_display_point(snapshot);
2331 let anchor_x = text_x
2332 + if rows.contains(&align_to.row()) {
2333 line_layouts[align_to.row().minus(rows.start) as usize]
2334 .x_for_index(align_to.column() as usize)
2335 } else {
2336 layout_line(
2337 align_to.row(),
2338 snapshot,
2339 &self.style,
2340 editor_width,
2341 is_row_soft_wrapped,
2342 window,
2343 cx,
2344 )
2345 .x_for_index(align_to.column() as usize)
2346 };
2347
2348 let selected = selections
2349 .binary_search_by(|selection| {
2350 if selection.end <= block_start {
2351 Ordering::Less
2352 } else if selection.start >= block_end {
2353 Ordering::Greater
2354 } else {
2355 Ordering::Equal
2356 }
2357 })
2358 .is_ok();
2359
2360 div()
2361 .size_full()
2362 .child(block.render(&mut BlockContext {
2363 window,
2364 app: cx,
2365 anchor_x,
2366 gutter_dimensions,
2367 line_height,
2368 em_width,
2369 block_id,
2370 selected,
2371 max_width: text_hitbox.size.width.max(*scroll_width),
2372 editor_style: &self.style,
2373 }))
2374 .into_any()
2375 }
2376
2377 Block::FoldedBuffer {
2378 first_excerpt,
2379 prev_excerpt,
2380 show_excerpt_controls,
2381 height,
2382 } => {
2383 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2384 let mut result = v_flex().id(block_id).w_full();
2385
2386 if let Some(prev_excerpt) = prev_excerpt {
2387 if *show_excerpt_controls {
2388 result = result.child(self.render_expand_excerpt_control(
2389 block_id,
2390 ExpandExcerptDirection::Down,
2391 prev_excerpt.id,
2392 gutter_dimensions,
2393 window,
2394 cx,
2395 ));
2396 }
2397 }
2398
2399 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2400 result
2401 .child(self.render_buffer_header(
2402 first_excerpt,
2403 true,
2404 selected,
2405 jump_data,
2406 window,
2407 cx,
2408 ))
2409 .into_any_element()
2410 }
2411
2412 Block::ExcerptBoundary {
2413 prev_excerpt,
2414 next_excerpt,
2415 show_excerpt_controls,
2416 height,
2417 starts_new_buffer,
2418 } => {
2419 let color = cx.theme().colors().clone();
2420 let mut result = v_flex().id(block_id).w_full();
2421
2422 if let Some(prev_excerpt) = prev_excerpt {
2423 if *show_excerpt_controls {
2424 result = result.child(self.render_expand_excerpt_control(
2425 block_id,
2426 ExpandExcerptDirection::Down,
2427 prev_excerpt.id,
2428 gutter_dimensions,
2429 window,
2430 cx,
2431 ));
2432 }
2433 }
2434
2435 if let Some(next_excerpt) = next_excerpt {
2436 let jump_data =
2437 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2438
2439 if *starts_new_buffer {
2440 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2441 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2442
2443 result = result.child(self.render_buffer_header(
2444 next_excerpt,
2445 false,
2446 selected,
2447 jump_data,
2448 window,
2449 cx,
2450 ));
2451 } else {
2452 result = result
2453 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2454 }
2455
2456 if *show_excerpt_controls {
2457 result = result.child(self.render_expand_excerpt_control(
2458 block_id,
2459 ExpandExcerptDirection::Up,
2460 next_excerpt.id,
2461 gutter_dimensions,
2462 window,
2463 cx,
2464 ));
2465 }
2466 } else {
2467 if *show_excerpt_controls {
2468 result = result.child(
2469 h_flex()
2470 .relative()
2471 .child(
2472 div()
2473 .top(px(0.))
2474 .absolute()
2475 .w_full()
2476 .h_px()
2477 .bg(color.border_variant),
2478 )
2479 .child(self.render_expand_excerpt_control(
2480 block_id,
2481 ExpandExcerptDirection::Up,
2482 next_excerpt.id,
2483 gutter_dimensions,
2484 window,
2485 cx,
2486 )),
2487 );
2488 }
2489 };
2490 }
2491
2492 result.into_any()
2493 }
2494 };
2495
2496 // Discover the element's content height, then round up to the nearest multiple of line height.
2497 let preliminary_size = element.layout_as_root(
2498 size(available_width, AvailableSpace::MinContent),
2499 window,
2500 cx,
2501 );
2502 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2503 let final_size = if preliminary_size.height == quantized_height {
2504 preliminary_size
2505 } else {
2506 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2507 };
2508
2509 if let BlockId::Custom(custom_block_id) = block_id {
2510 if block.height() > 0 {
2511 let element_height_in_lines =
2512 ((final_size.height / line_height).ceil() as u32).max(1);
2513 if element_height_in_lines != block.height() {
2514 resized_blocks.insert(custom_block_id, element_height_in_lines);
2515 }
2516 }
2517 }
2518
2519 (element, final_size)
2520 }
2521
2522 fn render_buffer_header(
2523 &self,
2524 for_excerpt: &ExcerptInfo,
2525 is_folded: bool,
2526 is_selected: bool,
2527 jump_data: JumpData,
2528 window: &mut Window,
2529 cx: &mut App,
2530 ) -> Div {
2531 let include_root = self
2532 .editor
2533 .read(cx)
2534 .project
2535 .as_ref()
2536 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2537 .unwrap_or_default();
2538 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2539 let filename = path
2540 .as_ref()
2541 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2542 let parent_path = path.as_ref().and_then(|path| {
2543 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2544 });
2545 let focus_handle = self.editor.focus_handle(cx);
2546 let colors = cx.theme().colors();
2547
2548 div()
2549 .px_2()
2550 .pt_2()
2551 .w_full()
2552 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2553 .child(
2554 h_flex()
2555 .size_full()
2556 .gap_2()
2557 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2558 .pl_0p5()
2559 .pr_5()
2560 .rounded_md()
2561 .shadow_md()
2562 .border_1()
2563 .map(|div| {
2564 let border_color = if is_selected && is_folded {
2565 colors.border_focused
2566 } else {
2567 colors.border
2568 };
2569 div.border_color(border_color)
2570 })
2571 .bg(colors.editor_subheader_background)
2572 .hover(|style| style.bg(colors.element_hover))
2573 .map(|header| {
2574 let editor = self.editor.clone();
2575 let buffer_id = for_excerpt.buffer_id;
2576 let toggle_chevron_icon =
2577 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2578 header.child(
2579 div()
2580 .hover(|style| style.bg(colors.element_selected))
2581 .rounded_sm()
2582 .child(
2583 ButtonLike::new("toggle-buffer-fold")
2584 .style(ui::ButtonStyle::Transparent)
2585 .size(ButtonSize::Large)
2586 .width(px(30.).into())
2587 .children(toggle_chevron_icon)
2588 .tooltip({
2589 let focus_handle = focus_handle.clone();
2590 move |window, cx| {
2591 Tooltip::for_action_in(
2592 "Toggle Excerpt Fold",
2593 &ToggleFold,
2594 &focus_handle,
2595 window,
2596 cx,
2597 )
2598 }
2599 })
2600 .on_click(move |_, _, cx| {
2601 if is_folded {
2602 editor.update(cx, |editor, cx| {
2603 editor.unfold_buffer(buffer_id, cx);
2604 });
2605 } else {
2606 editor.update(cx, |editor, cx| {
2607 editor.fold_buffer(buffer_id, cx);
2608 });
2609 }
2610 }),
2611 ),
2612 )
2613 })
2614 .children(
2615 self.editor
2616 .read(cx)
2617 .addons
2618 .values()
2619 .filter_map(|addon| {
2620 addon.render_buffer_header_controls(for_excerpt, window, cx)
2621 })
2622 .take(1),
2623 )
2624 .child(
2625 h_flex()
2626 .cursor_pointer()
2627 .id("path header block")
2628 .size_full()
2629 .justify_between()
2630 .child(
2631 h_flex()
2632 .gap_2()
2633 .child(
2634 filename
2635 .map(SharedString::from)
2636 .unwrap_or_else(|| "untitled".into()),
2637 )
2638 .when_some(parent_path, |then, path| {
2639 then.child(div().child(path).text_color(colors.text_muted))
2640 }),
2641 )
2642 .when(is_selected, |el| {
2643 el.child(
2644 h_flex()
2645 .id("jump-to-file-button")
2646 .gap_2p5()
2647 .child(Label::new("Jump To File"))
2648 .children(
2649 KeyBinding::for_action_in(
2650 &OpenExcerpts,
2651 &focus_handle,
2652 window,
2653 cx,
2654 )
2655 .map(|binding| binding.into_any_element()),
2656 ),
2657 )
2658 })
2659 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2660 .on_click(window.listener_for(&self.editor, {
2661 move |editor, e: &ClickEvent, window, cx| {
2662 editor.open_excerpts_common(
2663 Some(jump_data.clone()),
2664 e.down.modifiers.secondary(),
2665 window,
2666 cx,
2667 );
2668 }
2669 })),
2670 ),
2671 )
2672 }
2673
2674 fn render_expand_excerpt_control(
2675 &self,
2676 block_id: BlockId,
2677 direction: ExpandExcerptDirection,
2678 excerpt_id: ExcerptId,
2679 gutter_dimensions: &GutterDimensions,
2680 window: &Window,
2681 cx: &mut App,
2682 ) -> impl IntoElement {
2683 let color = cx.theme().colors().clone();
2684 let hover_color = color.border_variant.opacity(0.5);
2685 let focus_handle = self.editor.focus_handle(cx).clone();
2686
2687 let icon_offset =
2688 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2689 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2690 let group_name = if direction == ExpandExcerptDirection::Down {
2691 "expand-down"
2692 } else {
2693 "expand-up"
2694 };
2695
2696 let expand_area = |id: SharedString| {
2697 h_flex()
2698 .id(id)
2699 .w_full()
2700 .cursor_pointer()
2701 .block_mouse_down()
2702 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2703 .hover(|style| style.bg(hover_color))
2704 .tooltip({
2705 let focus_handle = focus_handle.clone();
2706 move |window, cx| {
2707 Tooltip::for_action_in(
2708 "Expand Excerpt",
2709 &ExpandExcerpts { lines: 0 },
2710 &focus_handle,
2711 window,
2712 cx,
2713 )
2714 }
2715 })
2716 };
2717
2718 expand_area(
2719 format!(
2720 "block-{}-{}",
2721 block_id,
2722 if direction == ExpandExcerptDirection::Down {
2723 "down"
2724 } else {
2725 "up"
2726 }
2727 )
2728 .into(),
2729 )
2730 .group(group_name)
2731 .child(
2732 h_flex()
2733 .w(icon_offset)
2734 .h(header_height)
2735 .flex_none()
2736 .justify_end()
2737 .child(
2738 ButtonLike::new("expand-icon")
2739 .style(ButtonStyle::Transparent)
2740 .child(
2741 svg()
2742 .path(if direction == ExpandExcerptDirection::Down {
2743 IconName::ArrowDownFromLine.path()
2744 } else {
2745 IconName::ArrowUpFromLine.path()
2746 })
2747 .size(IconSize::XSmall.rems())
2748 .text_color(cx.theme().colors().editor_line_number)
2749 .group_hover(group_name, |style| {
2750 style.text_color(cx.theme().colors().editor_active_line_number)
2751 }),
2752 ),
2753 ),
2754 )
2755 .on_click(window.listener_for(&self.editor, {
2756 move |editor, _, _, cx| {
2757 editor.expand_excerpt(excerpt_id, direction, cx);
2758 cx.stop_propagation();
2759 }
2760 }))
2761 }
2762
2763 fn render_blocks(
2764 &self,
2765 rows: Range<DisplayRow>,
2766 snapshot: &EditorSnapshot,
2767 hitbox: &Hitbox,
2768 text_hitbox: &Hitbox,
2769 editor_width: Pixels,
2770 scroll_width: &mut Pixels,
2771 gutter_dimensions: &GutterDimensions,
2772 em_width: Pixels,
2773 text_x: Pixels,
2774 line_height: Pixels,
2775 line_layouts: &[LineWithInvisibles],
2776 selections: &[Selection<Point>],
2777 selected_buffer_ids: &Vec<BufferId>,
2778 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2779 sticky_header_excerpt_id: Option<ExcerptId>,
2780 window: &mut Window,
2781 cx: &mut App,
2782 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2783 let (fixed_blocks, non_fixed_blocks) = snapshot
2784 .blocks_in_range(rows.clone())
2785 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2786
2787 let mut focused_block = self
2788 .editor
2789 .update(cx, |editor, _| editor.take_focused_block());
2790 let mut fixed_block_max_width = Pixels::ZERO;
2791 let mut blocks = Vec::new();
2792 let mut resized_blocks = HashMap::default();
2793
2794 for (row, block) in fixed_blocks {
2795 let block_id = block.id();
2796
2797 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2798 focused_block = None;
2799 }
2800
2801 let (element, element_size) = self.render_block(
2802 block,
2803 AvailableSpace::MinContent,
2804 block_id,
2805 row,
2806 snapshot,
2807 text_x,
2808 &rows,
2809 line_layouts,
2810 gutter_dimensions,
2811 line_height,
2812 em_width,
2813 text_hitbox,
2814 editor_width,
2815 scroll_width,
2816 &mut resized_blocks,
2817 selections,
2818 selected_buffer_ids,
2819 is_row_soft_wrapped,
2820 sticky_header_excerpt_id,
2821 window,
2822 cx,
2823 );
2824 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2825 blocks.push(BlockLayout {
2826 id: block_id,
2827 row: Some(row),
2828 element,
2829 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2830 style: BlockStyle::Fixed,
2831 });
2832 }
2833
2834 for (row, block) in non_fixed_blocks {
2835 let style = block.style();
2836 let width = match style {
2837 BlockStyle::Sticky => hitbox.size.width,
2838 BlockStyle::Flex => hitbox
2839 .size
2840 .width
2841 .max(fixed_block_max_width)
2842 .max(gutter_dimensions.width + *scroll_width),
2843 BlockStyle::Fixed => unreachable!(),
2844 };
2845 let block_id = block.id();
2846
2847 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2848 focused_block = None;
2849 }
2850
2851 let (element, element_size) = self.render_block(
2852 block,
2853 width.into(),
2854 block_id,
2855 row,
2856 snapshot,
2857 text_x,
2858 &rows,
2859 line_layouts,
2860 gutter_dimensions,
2861 line_height,
2862 em_width,
2863 text_hitbox,
2864 editor_width,
2865 scroll_width,
2866 &mut resized_blocks,
2867 selections,
2868 selected_buffer_ids,
2869 is_row_soft_wrapped,
2870 sticky_header_excerpt_id,
2871 window,
2872 cx,
2873 );
2874
2875 blocks.push(BlockLayout {
2876 id: block_id,
2877 row: Some(row),
2878 element,
2879 available_space: size(width.into(), element_size.height.into()),
2880 style,
2881 });
2882 }
2883
2884 if let Some(focused_block) = focused_block {
2885 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2886 if focus_handle.is_focused(window) {
2887 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2888 let style = block.style();
2889 let width = match style {
2890 BlockStyle::Fixed => AvailableSpace::MinContent,
2891 BlockStyle::Flex => AvailableSpace::Definite(
2892 hitbox
2893 .size
2894 .width
2895 .max(fixed_block_max_width)
2896 .max(gutter_dimensions.width + *scroll_width),
2897 ),
2898 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2899 };
2900
2901 let (element, element_size) = self.render_block(
2902 &block,
2903 width,
2904 focused_block.id,
2905 rows.end,
2906 snapshot,
2907 text_x,
2908 &rows,
2909 line_layouts,
2910 gutter_dimensions,
2911 line_height,
2912 em_width,
2913 text_hitbox,
2914 editor_width,
2915 scroll_width,
2916 &mut resized_blocks,
2917 selections,
2918 selected_buffer_ids,
2919 is_row_soft_wrapped,
2920 sticky_header_excerpt_id,
2921 window,
2922 cx,
2923 );
2924
2925 blocks.push(BlockLayout {
2926 id: block.id(),
2927 row: None,
2928 element,
2929 available_space: size(width, element_size.height.into()),
2930 style,
2931 });
2932 }
2933 }
2934 }
2935 }
2936
2937 if resized_blocks.is_empty() {
2938 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2939 Ok(blocks)
2940 } else {
2941 Err(resized_blocks)
2942 }
2943 }
2944
2945 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2946 /// a restart of rendering for the editor based on the new sizes.
2947 fn layout_blocks(
2948 &self,
2949 blocks: &mut Vec<BlockLayout>,
2950 block_starts: &mut HashSet<DisplayRow>,
2951 hitbox: &Hitbox,
2952 line_height: Pixels,
2953 scroll_pixel_position: gpui::Point<Pixels>,
2954 window: &mut Window,
2955 cx: &mut App,
2956 ) {
2957 for block in blocks {
2958 let mut origin = if let Some(row) = block.row {
2959 block_starts.insert(row);
2960 hitbox.origin
2961 + point(
2962 Pixels::ZERO,
2963 row.as_f32() * line_height - scroll_pixel_position.y,
2964 )
2965 } else {
2966 // Position the block outside the visible area
2967 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2968 };
2969
2970 if !matches!(block.style, BlockStyle::Sticky) {
2971 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2972 }
2973
2974 let focus_handle =
2975 block
2976 .element
2977 .prepaint_as_root(origin, block.available_space, window, cx);
2978
2979 if let Some(focus_handle) = focus_handle {
2980 self.editor.update(cx, |editor, _cx| {
2981 editor.set_focused_block(FocusedBlock {
2982 id: block.id,
2983 focus_handle: focus_handle.downgrade(),
2984 });
2985 });
2986 }
2987 }
2988 }
2989
2990 fn layout_sticky_buffer_header(
2991 &self,
2992 StickyHeaderExcerpt {
2993 excerpt,
2994 next_excerpt_controls_present,
2995 next_buffer_row,
2996 }: StickyHeaderExcerpt<'_>,
2997 scroll_position: f32,
2998 line_height: Pixels,
2999 snapshot: &EditorSnapshot,
3000 hitbox: &Hitbox,
3001 selected_buffer_ids: &Vec<BufferId>,
3002 window: &mut Window,
3003 cx: &mut App,
3004 ) -> AnyElement {
3005 let jump_data = header_jump_data(
3006 snapshot,
3007 DisplayRow(scroll_position as u32),
3008 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3009 excerpt,
3010 );
3011
3012 let editor_bg_color = cx.theme().colors().editor_background;
3013
3014 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3015
3016 let mut header = v_flex()
3017 .relative()
3018 .child(
3019 div()
3020 .w(hitbox.bounds.size.width)
3021 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3022 .bg(linear_gradient(
3023 0.,
3024 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3025 linear_color_stop(editor_bg_color, 0.6),
3026 ))
3027 .absolute()
3028 .top_0(),
3029 )
3030 .child(
3031 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3032 .into_any_element(),
3033 )
3034 .into_any_element();
3035
3036 let mut origin = hitbox.origin;
3037
3038 if let Some(next_buffer_row) = next_buffer_row {
3039 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3040
3041 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3042
3043 if next_excerpt_controls_present {
3044 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3045 }
3046
3047 let offset = scroll_position - max_row as f32;
3048
3049 if offset > 0.0 {
3050 origin.y -= Pixels(offset) * line_height;
3051 }
3052 }
3053
3054 let size = size(
3055 AvailableSpace::Definite(hitbox.size.width),
3056 AvailableSpace::MinContent,
3057 );
3058
3059 header.prepaint_as_root(origin, size, window, cx);
3060
3061 header
3062 }
3063
3064 fn layout_cursor_popovers(
3065 &self,
3066 line_height: Pixels,
3067 text_hitbox: &Hitbox,
3068 content_origin: gpui::Point<Pixels>,
3069 start_row: DisplayRow,
3070 scroll_pixel_position: gpui::Point<Pixels>,
3071 line_layouts: &[LineWithInvisibles],
3072 cursor: DisplayPoint,
3073 cursor_point: Point,
3074 style: &EditorStyle,
3075 window: &mut Window,
3076 cx: &mut App,
3077 ) {
3078 let mut min_menu_height = Pixels::ZERO;
3079 let mut max_menu_height = Pixels::ZERO;
3080 let mut height_above_menu = Pixels::ZERO;
3081 let height_below_menu = Pixels::ZERO;
3082 let mut edit_prediction_popover_visible = false;
3083 let mut context_menu_visible = false;
3084
3085 {
3086 let editor = self.editor.read(cx);
3087 if editor
3088 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3089 {
3090 height_above_menu +=
3091 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3092 edit_prediction_popover_visible = true;
3093 }
3094
3095 if editor.context_menu_visible() {
3096 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3097 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3098 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3099 context_menu_visible = true;
3100 }
3101 }
3102 }
3103
3104 let visible = edit_prediction_popover_visible || context_menu_visible;
3105 if !visible {
3106 return;
3107 }
3108
3109 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3110 let target_position = content_origin
3111 + gpui::Point {
3112 x: cmp::max(
3113 px(0.),
3114 cursor_row_layout.x_for_index(cursor.column() as usize)
3115 - scroll_pixel_position.x,
3116 ),
3117 y: cmp::max(
3118 px(0.),
3119 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3120 ),
3121 };
3122
3123 let viewport_bounds =
3124 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3125 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3126 ..Default::default()
3127 });
3128
3129 let min_height = height_above_menu + min_menu_height + height_below_menu;
3130 let max_height = height_above_menu + max_menu_height + height_below_menu;
3131 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3132 target_position,
3133 line_height,
3134 min_height,
3135 max_height,
3136 text_hitbox,
3137 viewport_bounds,
3138 window,
3139 cx,
3140 |height, max_width_for_stable_x, y_flipped, window, cx| {
3141 // First layout the menu to get its size - others can be at least this wide.
3142 let context_menu = if context_menu_visible {
3143 let menu_height = if y_flipped {
3144 height - height_below_menu
3145 } else {
3146 height - height_above_menu
3147 };
3148 let mut element = self
3149 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3150 .expect("Visible context menu should always render.");
3151 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3152 Some((CursorPopoverType::CodeContextMenu, element, size))
3153 } else {
3154 None
3155 };
3156 let min_width = context_menu
3157 .as_ref()
3158 .map_or(px(0.), |(_, _, size)| size.width);
3159 let max_width = max_width_for_stable_x.max(
3160 context_menu
3161 .as_ref()
3162 .map_or(px(0.), |(_, _, size)| size.width),
3163 );
3164
3165 let edit_prediction = if edit_prediction_popover_visible {
3166 self.editor.update(cx, move |editor, cx| {
3167 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3168 let mut element = editor.render_edit_prediction_cursor_popover(
3169 min_width,
3170 max_width,
3171 cursor_point,
3172 style,
3173 accept_binding.keystroke(),
3174 window,
3175 cx,
3176 )?;
3177 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3178 Some((CursorPopoverType::EditPrediction, element, size))
3179 })
3180 } else {
3181 None
3182 };
3183 vec![edit_prediction, context_menu]
3184 .into_iter()
3185 .flatten()
3186 .collect::<Vec<_>>()
3187 },
3188 ) else {
3189 return;
3190 };
3191
3192 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3193 .iter()
3194 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3195 else {
3196 return;
3197 };
3198 let last_ix = laid_out_popovers.len() - 1;
3199 let menu_is_last = menu_ix == last_ix;
3200 let first_popover_bounds = laid_out_popovers[0].1;
3201 let last_popover_bounds = laid_out_popovers[last_ix].1;
3202
3203 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3204 // right, and otherwise it goes below or to the right.
3205 let mut target_bounds = Bounds::from_corners(
3206 first_popover_bounds.origin,
3207 last_popover_bounds.bottom_right(),
3208 );
3209 target_bounds.size.width = menu_bounds.size.width;
3210
3211 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3212 // based on this is preferred for layout stability.
3213 let mut max_target_bounds = target_bounds;
3214 max_target_bounds.size.height = max_height;
3215 if y_flipped {
3216 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3217 }
3218
3219 // Add spacing around `target_bounds` and `max_target_bounds`.
3220 let mut extend_amount = Edges::all(MENU_GAP);
3221 if y_flipped {
3222 extend_amount.bottom = line_height;
3223 } else {
3224 extend_amount.top = line_height;
3225 }
3226 let target_bounds = target_bounds.extend(extend_amount);
3227 let max_target_bounds = max_target_bounds.extend(extend_amount);
3228
3229 let must_place_above_or_below =
3230 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3231 laid_out_popovers[menu_ix + 1..]
3232 .iter()
3233 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3234 } else {
3235 false
3236 };
3237
3238 self.layout_context_menu_aside(
3239 y_flipped,
3240 *menu_bounds,
3241 target_bounds,
3242 max_target_bounds,
3243 max_menu_height,
3244 must_place_above_or_below,
3245 text_hitbox,
3246 viewport_bounds,
3247 window,
3248 cx,
3249 );
3250 }
3251
3252 fn layout_gutter_menu(
3253 &self,
3254 line_height: Pixels,
3255 text_hitbox: &Hitbox,
3256 content_origin: gpui::Point<Pixels>,
3257 scroll_pixel_position: gpui::Point<Pixels>,
3258 gutter_overshoot: Pixels,
3259 window: &mut Window,
3260 cx: &mut App,
3261 ) {
3262 let editor = self.editor.read(cx);
3263 if !editor.context_menu_visible() {
3264 return;
3265 }
3266 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3267 editor.context_menu_origin()
3268 else {
3269 return;
3270 };
3271 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3272 // indicator than just a plain first column of the text field.
3273 let target_position = content_origin
3274 + gpui::Point {
3275 x: -gutter_overshoot,
3276 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3277 };
3278 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3279 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3280 let viewport_bounds =
3281 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3282 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3283 ..Default::default()
3284 });
3285 self.layout_popovers_above_or_below_line(
3286 target_position,
3287 line_height,
3288 min_height,
3289 max_height,
3290 text_hitbox,
3291 viewport_bounds,
3292 window,
3293 cx,
3294 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3295 let mut element = self
3296 .render_context_menu(line_height, height, y_flipped, window, cx)
3297 .expect("Visible context menu should always render.");
3298 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3299 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3300 },
3301 );
3302 }
3303
3304 fn layout_popovers_above_or_below_line(
3305 &self,
3306 target_position: gpui::Point<Pixels>,
3307 line_height: Pixels,
3308 min_height: Pixels,
3309 max_height: Pixels,
3310 text_hitbox: &Hitbox,
3311 viewport_bounds: Bounds<Pixels>,
3312 window: &mut Window,
3313 cx: &mut App,
3314 make_sized_popovers: impl FnOnce(
3315 Pixels,
3316 Pixels,
3317 bool,
3318 &mut Window,
3319 &mut App,
3320 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3321 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3322 // If the max height won't fit below and there is more space above, put it above the line.
3323 let bottom_y_when_flipped = target_position.y - line_height;
3324 let available_above = bottom_y_when_flipped - text_hitbox.top();
3325 let available_below = text_hitbox.bottom() - target_position.y;
3326 let y_overflows_below = max_height > available_below;
3327 let mut y_flipped = y_overflows_below && available_above > available_below;
3328 let mut height = cmp::min(
3329 max_height,
3330 if y_flipped {
3331 available_above
3332 } else {
3333 available_below
3334 },
3335 );
3336
3337 // If the min height doesn't fit within text bounds, instead fit within the window.
3338 if height < min_height {
3339 let available_above = bottom_y_when_flipped;
3340 let available_below = viewport_bounds.bottom() - target_position.y;
3341 if available_below > min_height {
3342 y_flipped = false;
3343 height = min_height;
3344 } else if available_above > min_height {
3345 y_flipped = true;
3346 height = min_height;
3347 } else if available_above > available_below {
3348 y_flipped = true;
3349 height = available_above;
3350 } else {
3351 y_flipped = false;
3352 height = available_below;
3353 }
3354 }
3355
3356 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3357
3358 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3359 // for very narrow windows.
3360 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3361 if popovers.is_empty() {
3362 return None;
3363 }
3364
3365 let max_width = popovers
3366 .iter()
3367 .map(|(_, _, size)| size.width)
3368 .max()
3369 .unwrap_or_default();
3370
3371 let mut current_position = gpui::Point {
3372 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3373 // overflow. Include space for the scrollbar.
3374 x: target_position
3375 .x
3376 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3377 y: if y_flipped {
3378 bottom_y_when_flipped
3379 } else {
3380 target_position.y
3381 },
3382 };
3383
3384 let mut laid_out_popovers = popovers
3385 .into_iter()
3386 .map(|(popover_type, element, size)| {
3387 if y_flipped {
3388 current_position.y -= size.height;
3389 }
3390 let position = current_position;
3391 window.defer_draw(element, current_position, 1);
3392 if !y_flipped {
3393 current_position.y += size.height + MENU_GAP;
3394 } else {
3395 current_position.y -= MENU_GAP;
3396 }
3397 (popover_type, Bounds::new(position, size))
3398 })
3399 .collect::<Vec<_>>();
3400
3401 if y_flipped {
3402 laid_out_popovers.reverse();
3403 }
3404
3405 Some((laid_out_popovers, y_flipped))
3406 }
3407
3408 fn layout_context_menu_aside(
3409 &self,
3410 y_flipped: bool,
3411 menu_bounds: Bounds<Pixels>,
3412 target_bounds: Bounds<Pixels>,
3413 max_target_bounds: Bounds<Pixels>,
3414 max_height: Pixels,
3415 must_place_above_or_below: bool,
3416 text_hitbox: &Hitbox,
3417 viewport_bounds: Bounds<Pixels>,
3418 window: &mut Window,
3419 cx: &mut App,
3420 ) {
3421 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3422 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3423 && !must_place_above_or_below
3424 {
3425 let max_width = cmp::min(
3426 available_within_viewport.right - px(1.),
3427 MENU_ASIDE_MAX_WIDTH,
3428 );
3429 let Some(mut aside) = self.render_context_menu_aside(
3430 size(max_width, max_height - POPOVER_Y_PADDING),
3431 window,
3432 cx,
3433 ) else {
3434 return;
3435 };
3436 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3437 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3438 Some((aside, right_position))
3439 } else {
3440 let max_size = size(
3441 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3442 // won't be needed here.
3443 cmp::min(
3444 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3445 viewport_bounds.right(),
3446 ),
3447 cmp::min(
3448 max_height,
3449 cmp::max(
3450 available_within_viewport.top,
3451 available_within_viewport.bottom,
3452 ),
3453 ) - POPOVER_Y_PADDING,
3454 );
3455 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3456 return;
3457 };
3458 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3459
3460 let top_position = point(
3461 menu_bounds.origin.x,
3462 target_bounds.top() - actual_size.height,
3463 );
3464 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3465
3466 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3467 // Prefer to fit on the same side of the line as the menu, then on the other side of
3468 // the line.
3469 if !y_flipped && wanted.height < available.bottom {
3470 Some(bottom_position)
3471 } else if !y_flipped && wanted.height < available.top {
3472 Some(top_position)
3473 } else if y_flipped && wanted.height < available.top {
3474 Some(top_position)
3475 } else if y_flipped && wanted.height < available.bottom {
3476 Some(bottom_position)
3477 } else {
3478 None
3479 }
3480 };
3481
3482 // Prefer choosing a direction using max sizes rather than actual size for stability.
3483 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3484 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3485 let aside_position = fit_within(available_within_text, wanted)
3486 // Fallback: fit max size in window.
3487 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3488 // Fallback: fit actual size in window.
3489 .or_else(|| fit_within(available_within_viewport, actual_size));
3490
3491 aside_position.map(|position| (aside, position))
3492 };
3493
3494 // Skip drawing if it doesn't fit anywhere.
3495 if let Some((aside, position)) = positioned_aside {
3496 window.defer_draw(aside, position, 2);
3497 }
3498 }
3499
3500 fn render_context_menu(
3501 &self,
3502 line_height: Pixels,
3503 height: Pixels,
3504 y_flipped: bool,
3505 window: &mut Window,
3506 cx: &mut App,
3507 ) -> Option<AnyElement> {
3508 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3509 self.editor.update(cx, |editor, cx| {
3510 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3511 })
3512 }
3513
3514 fn render_context_menu_aside(
3515 &self,
3516 max_size: Size<Pixels>,
3517 window: &mut Window,
3518 cx: &mut App,
3519 ) -> Option<AnyElement> {
3520 if max_size.width < px(100.) || max_size.height < px(12.) {
3521 None
3522 } else {
3523 self.editor.update(cx, |editor, cx| {
3524 editor.render_context_menu_aside(max_size, window, cx)
3525 })
3526 }
3527 }
3528
3529 fn layout_edit_prediction_popover(
3530 &self,
3531 text_bounds: &Bounds<Pixels>,
3532 content_origin: gpui::Point<Pixels>,
3533 editor_snapshot: &EditorSnapshot,
3534 visible_row_range: Range<DisplayRow>,
3535 scroll_top: f32,
3536 scroll_bottom: f32,
3537 line_layouts: &[LineWithInvisibles],
3538 line_height: Pixels,
3539 scroll_pixel_position: gpui::Point<Pixels>,
3540 newest_selection_head: Option<DisplayPoint>,
3541 editor_width: Pixels,
3542 style: &EditorStyle,
3543 window: &mut Window,
3544 cx: &mut App,
3545 ) -> Option<AnyElement> {
3546 const PADDING_X: Pixels = Pixels(24.);
3547 const PADDING_Y: Pixels = Pixels(2.);
3548
3549 let editor = self.editor.read(cx);
3550 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3551
3552 if editor.edit_prediction_visible_in_cursor_popover(true) {
3553 return None;
3554 }
3555
3556 // Adjust text origin for horizontal scrolling (in some cases here)
3557 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3558
3559 // Clamp left offset after extreme scrollings
3560 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3561 x: point.x.max(content_origin.x),
3562 y: point.y,
3563 };
3564
3565 match &active_inline_completion.completion {
3566 InlineCompletion::Move { target, .. } => {
3567 let target_display_point = target.to_display_point(editor_snapshot);
3568
3569 if editor.edit_prediction_requires_modifier() {
3570 if !editor.edit_prediction_preview_is_active() {
3571 return None;
3572 }
3573
3574 if target_display_point.row() < visible_row_range.start {
3575 let mut element = editor
3576 .render_edit_prediction_line_popover(
3577 "Scroll",
3578 Some(IconName::ArrowUp),
3579 window,
3580 cx,
3581 )?
3582 .into_any();
3583
3584 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3585
3586 let cursor = newest_selection_head?;
3587 let cursor_row_layout = line_layouts
3588 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3589 let cursor_column = cursor.column() as usize;
3590
3591 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3592
3593 const PADDING_Y: Pixels = px(12.);
3594
3595 let origin = start_point + point(cursor_character_x, PADDING_Y);
3596
3597 element.prepaint_at(origin, window, cx);
3598 return Some(element);
3599 } else if target_display_point.row() >= visible_row_range.end {
3600 let mut element = editor
3601 .render_edit_prediction_line_popover(
3602 "Scroll",
3603 Some(IconName::ArrowDown),
3604 window,
3605 cx,
3606 )?
3607 .into_any();
3608
3609 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3610
3611 let cursor = newest_selection_head?;
3612 let cursor_row_layout = line_layouts
3613 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3614 let cursor_column = cursor.column() as usize;
3615
3616 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3617 const PADDING_Y: Pixels = px(12.);
3618
3619 let origin = start_point
3620 + point(
3621 cursor_character_x,
3622 text_bounds.size.height - size.height - PADDING_Y,
3623 );
3624
3625 element.prepaint_at(origin, window, cx);
3626 return Some(element);
3627 } else {
3628 const POLE_WIDTH: Pixels = px(2.);
3629
3630 let mut element = v_flex()
3631 .child(
3632 editor
3633 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3634 .rounded_br(px(0.))
3635 .rounded_tr(px(0.))
3636 .border_r_2(),
3637 )
3638 .child(
3639 div()
3640 .w(POLE_WIDTH)
3641 .bg(cx.theme().colors().text_accent.opacity(0.8))
3642 .h(line_height),
3643 )
3644 .items_end()
3645 .into_any();
3646
3647 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3648
3649 let line_layout =
3650 line_layouts
3651 .get(target_display_point.row().minus(visible_row_range.start)
3652 as usize)?;
3653 let target_column = target_display_point.column() as usize;
3654
3655 let target_x = line_layout.x_for_index(target_column);
3656 let target_y = (target_display_point.row().as_f32() * line_height)
3657 - scroll_pixel_position.y;
3658
3659 let origin = clamp_start(
3660 start_point + point(target_x, target_y)
3661 - point(size.width - POLE_WIDTH, size.height - line_height),
3662 );
3663
3664 element.prepaint_at(origin, window, cx);
3665
3666 return Some(element);
3667 }
3668 }
3669
3670 if target_display_point.row().as_f32() < scroll_top {
3671 let mut element = editor
3672 .render_edit_prediction_line_popover(
3673 "Jump to Edit",
3674 Some(IconName::ArrowUp),
3675 window,
3676 cx,
3677 )?
3678 .into_any();
3679
3680 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3681 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3682
3683 element.prepaint_at(text_bounds.origin + offset, window, cx);
3684 Some(element)
3685 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3686 let mut element = editor
3687 .render_edit_prediction_line_popover(
3688 "Jump to Edit",
3689 Some(IconName::ArrowDown),
3690 window,
3691 cx,
3692 )?
3693 .into_any();
3694
3695 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3696 let offset = point(
3697 (text_bounds.size.width - size.width) / 2.,
3698 text_bounds.size.height - size.height - PADDING_Y,
3699 );
3700
3701 element.prepaint_at(text_bounds.origin + offset, window, cx);
3702 Some(element)
3703 } else {
3704 let mut element = editor
3705 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3706 .into_any();
3707 let target_line_end = DisplayPoint::new(
3708 target_display_point.row(),
3709 editor_snapshot.line_len(target_display_point.row()),
3710 );
3711 let origin = self.editor.update(cx, |editor, _cx| {
3712 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3713 })?;
3714
3715 element.prepaint_as_root(
3716 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3717 AvailableSpace::min_size(),
3718 window,
3719 cx,
3720 );
3721 Some(element)
3722 }
3723 }
3724 InlineCompletion::Edit {
3725 edits,
3726 edit_preview,
3727 display_mode,
3728 snapshot,
3729 } => {
3730 if self.editor.read(cx).has_visible_completions_menu() {
3731 return None;
3732 }
3733
3734 let edit_start = edits
3735 .first()
3736 .unwrap()
3737 .0
3738 .start
3739 .to_display_point(editor_snapshot);
3740 let edit_end = edits
3741 .last()
3742 .unwrap()
3743 .0
3744 .end
3745 .to_display_point(editor_snapshot);
3746
3747 let is_visible = visible_row_range.contains(&edit_start.row())
3748 || visible_row_range.contains(&edit_end.row());
3749 if !is_visible {
3750 return None;
3751 }
3752
3753 match display_mode {
3754 EditDisplayMode::TabAccept => {
3755 let range = &edits.first()?.0;
3756 let target_display_point = range.end.to_display_point(editor_snapshot);
3757
3758 let target_line_end = DisplayPoint::new(
3759 target_display_point.row(),
3760 editor_snapshot.line_len(target_display_point.row()),
3761 );
3762 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3763 Some((
3764 editor
3765 .render_edit_prediction_line_popover(
3766 "Accept", None, window, cx,
3767 )?
3768 .into_any(),
3769 editor.display_to_pixel_point(
3770 target_line_end,
3771 editor_snapshot,
3772 window,
3773 )?,
3774 ))
3775 })?;
3776
3777 element.prepaint_as_root(
3778 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3779 AvailableSpace::min_size(),
3780 window,
3781 cx,
3782 );
3783 return Some(element);
3784 }
3785 EditDisplayMode::Inline => return None,
3786 EditDisplayMode::DiffPopover => {}
3787 }
3788
3789 let highlighted_edits = crate::inline_completion_edit_text(
3790 &snapshot,
3791 edits,
3792 edit_preview.as_ref()?,
3793 false,
3794 cx,
3795 );
3796
3797 let styled_text = highlighted_edits.to_styled_text(&style.text);
3798 let line_count = highlighted_edits.text.lines().count();
3799
3800 const BORDER_WIDTH: Pixels = px(1.);
3801
3802 let mut element = h_flex()
3803 .items_start()
3804 .child(
3805 h_flex()
3806 .bg(cx.theme().colors().editor_background)
3807 .border(BORDER_WIDTH)
3808 .shadow_sm()
3809 .border_color(cx.theme().colors().border)
3810 .rounded_l_lg()
3811 .when(line_count > 1, |el| el.rounded_br_lg())
3812 .pr_1()
3813 .child(styled_text),
3814 )
3815 .child(
3816 h_flex()
3817 .h(line_height + BORDER_WIDTH * px(2.))
3818 .px_1p5()
3819 .gap_1()
3820 // Workaround: For some reason, there's a gap if we don't do this
3821 .ml(-BORDER_WIDTH)
3822 .shadow(smallvec![gpui::BoxShadow {
3823 color: gpui::black().opacity(0.05),
3824 offset: point(px(1.), px(1.)),
3825 blur_radius: px(2.),
3826 spread_radius: px(0.),
3827 }])
3828 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
3829 .border(BORDER_WIDTH)
3830 .border_color(cx.theme().colors().border)
3831 .rounded_r_lg()
3832 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
3833 )
3834 .into_any();
3835
3836 let longest_row =
3837 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3838 let longest_line_width = if visible_row_range.contains(&longest_row) {
3839 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3840 } else {
3841 layout_line(
3842 longest_row,
3843 editor_snapshot,
3844 style,
3845 editor_width,
3846 |_| false,
3847 window,
3848 cx,
3849 )
3850 .width
3851 };
3852
3853 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3854 .extend(Edges {
3855 right: -Self::SCROLLBAR_WIDTH,
3856 ..Default::default()
3857 });
3858
3859 let x_after_longest =
3860 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3861
3862 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3863
3864 // Fully visible if it can be displayed within the window (allow overlapping other
3865 // panes). However, this is only allowed if the popover starts within text_bounds.
3866 let can_position_to_the_right = x_after_longest < text_bounds.right()
3867 && x_after_longest + element_bounds.width < viewport_bounds.right();
3868
3869 let mut origin = if can_position_to_the_right {
3870 point(
3871 x_after_longest,
3872 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3873 - scroll_pixel_position.y,
3874 )
3875 } else {
3876 let cursor_row = newest_selection_head.map(|head| head.row());
3877 let above_edit = edit_start
3878 .row()
3879 .0
3880 .checked_sub(line_count as u32)
3881 .map(DisplayRow);
3882 let below_edit = Some(edit_end.row() + 1);
3883 let above_cursor = cursor_row
3884 .and_then(|row| row.0.checked_sub(line_count as u32).map(DisplayRow));
3885 let below_cursor = cursor_row.map(|cursor_row| cursor_row + 1);
3886
3887 // Place the edit popover adjacent to the edit if there is a location
3888 // available that is onscreen and does not obscure the cursor. Otherwise,
3889 // place it adjacent to the cursor.
3890 let row_target = [above_edit, below_edit, above_cursor, below_cursor]
3891 .into_iter()
3892 .flatten()
3893 .find(|&start_row| {
3894 let end_row = start_row + line_count as u32;
3895 visible_row_range.contains(&start_row)
3896 && visible_row_range.contains(&end_row)
3897 && cursor_row.map_or(true, |cursor_row| {
3898 !((start_row..end_row).contains(&cursor_row))
3899 })
3900 })?;
3901
3902 content_origin
3903 + point(
3904 -scroll_pixel_position.x,
3905 row_target.as_f32() * line_height - scroll_pixel_position.y,
3906 )
3907 };
3908
3909 origin.x -= BORDER_WIDTH;
3910
3911 window.defer_draw(element, origin, 1);
3912
3913 // Do not return an element, since it will already be drawn due to defer_draw.
3914 None
3915 }
3916 }
3917 }
3918
3919 fn layout_mouse_context_menu(
3920 &self,
3921 editor_snapshot: &EditorSnapshot,
3922 visible_range: Range<DisplayRow>,
3923 content_origin: gpui::Point<Pixels>,
3924 window: &mut Window,
3925 cx: &mut App,
3926 ) -> Option<AnyElement> {
3927 let position = self.editor.update(cx, |editor, _cx| {
3928 let visible_start_point = editor.display_to_pixel_point(
3929 DisplayPoint::new(visible_range.start, 0),
3930 editor_snapshot,
3931 window,
3932 )?;
3933 let visible_end_point = editor.display_to_pixel_point(
3934 DisplayPoint::new(visible_range.end, 0),
3935 editor_snapshot,
3936 window,
3937 )?;
3938
3939 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3940 let (source_display_point, position) = match mouse_context_menu.position {
3941 MenuPosition::PinnedToScreen(point) => (None, point),
3942 MenuPosition::PinnedToEditor { source, offset } => {
3943 let source_display_point = source.to_display_point(editor_snapshot);
3944 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3945 let position = content_origin + source_point + offset;
3946 (Some(source_display_point), position)
3947 }
3948 };
3949
3950 let source_included = source_display_point.map_or(true, |source_display_point| {
3951 visible_range
3952 .to_inclusive()
3953 .contains(&source_display_point.row())
3954 });
3955 let position_included =
3956 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3957 if !source_included && !position_included {
3958 None
3959 } else {
3960 Some(position)
3961 }
3962 })?;
3963
3964 let mut element = self.editor.update(cx, |editor, _| {
3965 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3966 let context_menu = mouse_context_menu.context_menu.clone();
3967
3968 Some(
3969 deferred(
3970 anchored()
3971 .position(position)
3972 .child(context_menu)
3973 .anchor(Corner::TopLeft)
3974 .snap_to_window_with_margin(px(8.)),
3975 )
3976 .with_priority(1)
3977 .into_any(),
3978 )
3979 })?;
3980
3981 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3982 Some(element)
3983 }
3984
3985 fn layout_hover_popovers(
3986 &self,
3987 snapshot: &EditorSnapshot,
3988 hitbox: &Hitbox,
3989 text_hitbox: &Hitbox,
3990 visible_display_row_range: Range<DisplayRow>,
3991 content_origin: gpui::Point<Pixels>,
3992 scroll_pixel_position: gpui::Point<Pixels>,
3993 line_layouts: &[LineWithInvisibles],
3994 line_height: Pixels,
3995 em_width: Pixels,
3996 window: &mut Window,
3997 cx: &mut App,
3998 ) {
3999 struct MeasuredHoverPopover {
4000 element: AnyElement,
4001 size: Size<Pixels>,
4002 horizontal_offset: Pixels,
4003 }
4004
4005 let max_size = size(
4006 (120. * em_width) // Default size
4007 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4008 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4009 (16. * line_height) // Default size
4010 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4011 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4012 );
4013
4014 let hover_popovers = self.editor.update(cx, |editor, cx| {
4015 editor
4016 .hover_state
4017 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4018 });
4019 let Some((position, hover_popovers)) = hover_popovers else {
4020 return;
4021 };
4022
4023 // This is safe because we check on layout whether the required row is available
4024 let hovered_row_layout =
4025 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4026
4027 // Compute Hovered Point
4028 let x =
4029 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4030 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4031 let hovered_point = content_origin + point(x, y);
4032
4033 let mut overall_height = Pixels::ZERO;
4034 let mut measured_hover_popovers = Vec::new();
4035 for mut hover_popover in hover_popovers {
4036 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4037 let horizontal_offset =
4038 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4039
4040 overall_height += HOVER_POPOVER_GAP + size.height;
4041
4042 measured_hover_popovers.push(MeasuredHoverPopover {
4043 element: hover_popover,
4044 size,
4045 horizontal_offset,
4046 });
4047 }
4048 overall_height += HOVER_POPOVER_GAP;
4049
4050 fn draw_occluder(
4051 width: Pixels,
4052 origin: gpui::Point<Pixels>,
4053 window: &mut Window,
4054 cx: &mut App,
4055 ) {
4056 let mut occlusion = div()
4057 .size_full()
4058 .occlude()
4059 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4060 .into_any_element();
4061 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4062 window.defer_draw(occlusion, origin, 2);
4063 }
4064
4065 if hovered_point.y > overall_height {
4066 // There is enough space above. Render popovers above the hovered point
4067 let mut current_y = hovered_point.y;
4068 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4069 let size = popover.size;
4070 let popover_origin = point(
4071 hovered_point.x + popover.horizontal_offset,
4072 current_y - size.height,
4073 );
4074
4075 window.defer_draw(popover.element, popover_origin, 2);
4076 if position != itertools::Position::Last {
4077 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4078 draw_occluder(size.width, origin, window, cx);
4079 }
4080
4081 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4082 }
4083 } else {
4084 // There is not enough space above. Render popovers below the hovered point
4085 let mut current_y = hovered_point.y + line_height;
4086 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4087 let size = popover.size;
4088 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4089
4090 window.defer_draw(popover.element, popover_origin, 2);
4091 if position != itertools::Position::Last {
4092 let origin = point(popover_origin.x, popover_origin.y + size.height);
4093 draw_occluder(size.width, origin, window, cx);
4094 }
4095
4096 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4097 }
4098 }
4099 }
4100
4101 fn layout_diff_hunk_controls(
4102 &self,
4103 row_range: Range<DisplayRow>,
4104 row_infos: &[RowInfo],
4105 text_hitbox: &Hitbox,
4106 position_map: &PositionMap,
4107 newest_cursor_position: Option<DisplayPoint>,
4108 line_height: Pixels,
4109 scroll_pixel_position: gpui::Point<Pixels>,
4110 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4111 editor: Entity<Editor>,
4112 window: &mut Window,
4113 cx: &mut App,
4114 ) -> Vec<AnyElement> {
4115 let point_for_position = position_map.point_for_position(window.mouse_position());
4116
4117 let mut controls = vec![];
4118
4119 let active_positions = [
4120 Some(point_for_position.previous_valid),
4121 newest_cursor_position,
4122 ];
4123
4124 for (hunk, _) in display_hunks {
4125 if let DisplayDiffHunk::Unfolded {
4126 display_row_range,
4127 multi_buffer_range,
4128 status,
4129 ..
4130 } = &hunk
4131 {
4132 if display_row_range.start < row_range.start
4133 || display_row_range.start >= row_range.end
4134 {
4135 continue;
4136 }
4137 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4138 if row_infos[row_ix].diff_status.is_none() {
4139 continue;
4140 }
4141 if matches!(
4142 row_infos[row_ix].diff_status,
4143 Some(DiffHunkStatus::Added(_))
4144 ) && !matches!(*status, DiffHunkStatus::Added(_))
4145 {
4146 continue;
4147 }
4148 if active_positions
4149 .iter()
4150 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4151 {
4152 let y = display_row_range.start.as_f32() * line_height
4153 + text_hitbox.bounds.top()
4154 - scroll_pixel_position.y;
4155 let x = text_hitbox.bounds.right()
4156 - rems(6.).to_pixels(window.rem_size())
4157 - px(33.);
4158
4159 let mut element = diff_hunk_controls(
4160 display_row_range.start.0,
4161 multi_buffer_range.clone(),
4162 line_height,
4163 &editor,
4164 window,
4165 cx,
4166 );
4167 element.prepaint_as_root(
4168 gpui::Point::new(x, y),
4169 size(px(100.0), line_height).into(),
4170 window,
4171 cx,
4172 );
4173 controls.push(element);
4174 }
4175 }
4176 }
4177
4178 controls
4179 }
4180
4181 fn layout_signature_help(
4182 &self,
4183 hitbox: &Hitbox,
4184 content_origin: gpui::Point<Pixels>,
4185 scroll_pixel_position: gpui::Point<Pixels>,
4186 newest_selection_head: Option<DisplayPoint>,
4187 start_row: DisplayRow,
4188 line_layouts: &[LineWithInvisibles],
4189 line_height: Pixels,
4190 em_width: Pixels,
4191 window: &mut Window,
4192 cx: &mut App,
4193 ) {
4194 if !self.editor.focus_handle(cx).is_focused(window) {
4195 return;
4196 }
4197 let Some(newest_selection_head) = newest_selection_head else {
4198 return;
4199 };
4200 let selection_row = newest_selection_head.row();
4201 if selection_row < start_row {
4202 return;
4203 }
4204 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4205 else {
4206 return;
4207 };
4208
4209 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4210 - scroll_pixel_position.x
4211 + content_origin.x;
4212 let start_y =
4213 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4214
4215 let max_size = size(
4216 (120. * em_width) // Default size
4217 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4218 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4219 (16. * line_height) // Default size
4220 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4221 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4222 );
4223
4224 let maybe_element = self.editor.update(cx, |editor, cx| {
4225 if let Some(popover) = editor.signature_help_state.popover_mut() {
4226 let element = popover.render(
4227 &self.style,
4228 max_size,
4229 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4230 cx,
4231 );
4232 Some(element)
4233 } else {
4234 None
4235 }
4236 });
4237 if let Some(mut element) = maybe_element {
4238 let window_size = window.viewport_size();
4239 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4240 let mut point = point(start_x, start_y - size.height);
4241
4242 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4243 if point.x + size.width >= window_size.width {
4244 point.x = window_size.width - size.width;
4245 }
4246
4247 window.defer_draw(element, point, 1)
4248 }
4249 }
4250
4251 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4252 window.paint_layer(layout.hitbox.bounds, |window| {
4253 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4254 let gutter_bg = cx.theme().colors().editor_gutter_background;
4255 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4256 window.paint_quad(fill(
4257 layout.position_map.text_hitbox.bounds,
4258 self.style.background,
4259 ));
4260
4261 if let EditorMode::Full = layout.mode {
4262 let mut active_rows = layout.active_rows.iter().peekable();
4263 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4264 let mut end_row = start_row.0;
4265 while active_rows
4266 .peek()
4267 .map_or(false, |(active_row, has_selection)| {
4268 active_row.0 == end_row + 1
4269 && *has_selection == contains_non_empty_selection
4270 })
4271 {
4272 active_rows.next().unwrap();
4273 end_row += 1;
4274 }
4275
4276 if !contains_non_empty_selection {
4277 let highlight_h_range =
4278 match layout.position_map.snapshot.current_line_highlight {
4279 CurrentLineHighlight::Gutter => Some(Range {
4280 start: layout.hitbox.left(),
4281 end: layout.gutter_hitbox.right(),
4282 }),
4283 CurrentLineHighlight::Line => Some(Range {
4284 start: layout.position_map.text_hitbox.bounds.left(),
4285 end: layout.position_map.text_hitbox.bounds.right(),
4286 }),
4287 CurrentLineHighlight::All => Some(Range {
4288 start: layout.hitbox.left(),
4289 end: layout.hitbox.right(),
4290 }),
4291 CurrentLineHighlight::None => None,
4292 };
4293 if let Some(range) = highlight_h_range {
4294 let active_line_bg = cx.theme().colors().editor_active_line_background;
4295 let bounds = Bounds {
4296 origin: point(
4297 range.start,
4298 layout.hitbox.origin.y
4299 + (start_row.as_f32() - scroll_top)
4300 * layout.position_map.line_height,
4301 ),
4302 size: size(
4303 range.end - range.start,
4304 layout.position_map.line_height
4305 * (end_row - start_row.0 + 1) as f32,
4306 ),
4307 };
4308 window.paint_quad(fill(bounds, active_line_bg));
4309 }
4310 }
4311 }
4312
4313 let mut paint_highlight =
4314 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4315 let origin = point(
4316 layout.hitbox.origin.x,
4317 layout.hitbox.origin.y
4318 + (highlight_row_start.as_f32() - scroll_top)
4319 * layout.position_map.line_height,
4320 );
4321 let size = size(
4322 layout.hitbox.size.width,
4323 layout.position_map.line_height
4324 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4325 );
4326 window.paint_quad(fill(Bounds { origin, size }, color));
4327 };
4328
4329 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4330 for (&new_row, &new_background) in &layout.highlighted_rows {
4331 match &mut current_paint {
4332 Some((current_background, current_range)) => {
4333 let current_background = *current_background;
4334 let new_range_started = current_background != new_background
4335 || current_range.end.next_row() != new_row;
4336 if new_range_started {
4337 paint_highlight(
4338 current_range.start,
4339 current_range.end,
4340 current_background,
4341 );
4342 current_paint = Some((new_background, new_row..new_row));
4343 continue;
4344 } else {
4345 current_range.end = current_range.end.next_row();
4346 }
4347 }
4348 None => current_paint = Some((new_background, new_row..new_row)),
4349 };
4350 }
4351 if let Some((color, range)) = current_paint {
4352 paint_highlight(range.start, range.end, color);
4353 }
4354
4355 let scroll_left =
4356 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4357
4358 for (wrap_position, active) in layout.wrap_guides.iter() {
4359 let x = (layout.position_map.text_hitbox.origin.x
4360 + *wrap_position
4361 + layout.position_map.em_width / 2.)
4362 - scroll_left;
4363
4364 let show_scrollbars = {
4365 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4366
4367 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4368 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4369 };
4370
4371 if x < layout.position_map.text_hitbox.origin.x
4372 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4373 {
4374 continue;
4375 }
4376
4377 let color = if *active {
4378 cx.theme().colors().editor_active_wrap_guide
4379 } else {
4380 cx.theme().colors().editor_wrap_guide
4381 };
4382 window.paint_quad(fill(
4383 Bounds {
4384 origin: point(x, layout.position_map.text_hitbox.origin.y),
4385 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4386 },
4387 color,
4388 ));
4389 }
4390 }
4391 })
4392 }
4393
4394 fn paint_indent_guides(
4395 &mut self,
4396 layout: &mut EditorLayout,
4397 window: &mut Window,
4398 cx: &mut App,
4399 ) {
4400 let Some(indent_guides) = &layout.indent_guides else {
4401 return;
4402 };
4403
4404 let faded_color = |color: Hsla, alpha: f32| {
4405 let mut faded = color;
4406 faded.a = alpha;
4407 faded
4408 };
4409
4410 for indent_guide in indent_guides {
4411 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4412 let settings = indent_guide.settings;
4413
4414 // TODO fixed for now, expose them through themes later
4415 const INDENT_AWARE_ALPHA: f32 = 0.2;
4416 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4417 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4418 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4419
4420 let line_color = match (settings.coloring, indent_guide.active) {
4421 (IndentGuideColoring::Disabled, _) => None,
4422 (IndentGuideColoring::Fixed, false) => {
4423 Some(cx.theme().colors().editor_indent_guide)
4424 }
4425 (IndentGuideColoring::Fixed, true) => {
4426 Some(cx.theme().colors().editor_indent_guide_active)
4427 }
4428 (IndentGuideColoring::IndentAware, false) => {
4429 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4430 }
4431 (IndentGuideColoring::IndentAware, true) => {
4432 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4433 }
4434 };
4435
4436 let background_color = match (settings.background_coloring, indent_guide.active) {
4437 (IndentGuideBackgroundColoring::Disabled, _) => None,
4438 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4439 indent_accent_colors,
4440 INDENT_AWARE_BACKGROUND_ALPHA,
4441 )),
4442 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4443 indent_accent_colors,
4444 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4445 )),
4446 };
4447
4448 let requested_line_width = if indent_guide.active {
4449 settings.active_line_width
4450 } else {
4451 settings.line_width
4452 }
4453 .clamp(1, 10);
4454 let mut line_indicator_width = 0.;
4455 if let Some(color) = line_color {
4456 window.paint_quad(fill(
4457 Bounds {
4458 origin: indent_guide.origin,
4459 size: size(px(requested_line_width as f32), indent_guide.length),
4460 },
4461 color,
4462 ));
4463 line_indicator_width = requested_line_width as f32;
4464 }
4465
4466 if let Some(color) = background_color {
4467 let width = indent_guide.single_indent_width - px(line_indicator_width);
4468 window.paint_quad(fill(
4469 Bounds {
4470 origin: point(
4471 indent_guide.origin.x + px(line_indicator_width),
4472 indent_guide.origin.y,
4473 ),
4474 size: size(width, indent_guide.length),
4475 },
4476 color,
4477 ));
4478 }
4479 }
4480 }
4481
4482 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4483 let is_singleton = self.editor.read(cx).is_singleton(cx);
4484
4485 let line_height = layout.position_map.line_height;
4486 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4487
4488 for LineNumberLayout {
4489 shaped_line,
4490 hitbox,
4491 display_row,
4492 } in layout.line_numbers.values()
4493 {
4494 let Some(hitbox) = hitbox else {
4495 continue;
4496 };
4497
4498 let is_active = layout.active_rows.contains_key(&display_row);
4499
4500 let color = if is_active {
4501 cx.theme().colors().editor_active_line_number
4502 } else if !is_singleton && hitbox.is_hovered(window) {
4503 cx.theme().colors().editor_hover_line_number
4504 } else {
4505 cx.theme().colors().editor_line_number
4506 };
4507
4508 let Some(line) = self
4509 .shape_line_number(shaped_line.text.clone(), color, window)
4510 .log_err()
4511 else {
4512 continue;
4513 };
4514 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4515 continue;
4516 };
4517 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4518 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4519 if is_singleton {
4520 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4521 } else {
4522 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4523 }
4524 }
4525 }
4526
4527 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4528 if layout.display_hunks.is_empty() {
4529 return;
4530 }
4531
4532 let line_height = layout.position_map.line_height;
4533 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4534 for (hunk, hitbox) in &layout.display_hunks {
4535 let hunk_to_paint = match hunk {
4536 DisplayDiffHunk::Folded { .. } => {
4537 let hunk_bounds = Self::diff_hunk_bounds(
4538 &layout.position_map.snapshot,
4539 line_height,
4540 layout.gutter_hitbox.bounds,
4541 hunk,
4542 );
4543 Some((
4544 hunk_bounds,
4545 cx.theme().status().modified,
4546 Corners::all(px(0.)),
4547 &DiffHunkSecondaryStatus::None,
4548 ))
4549 }
4550 DisplayDiffHunk::Unfolded {
4551 status,
4552 display_row_range,
4553 ..
4554 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4555 DiffHunkStatus::Added(secondary_status) => (
4556 hunk_hitbox.bounds,
4557 cx.theme().status().created,
4558 Corners::all(px(0.)),
4559 secondary_status,
4560 ),
4561 DiffHunkStatus::Modified(secondary_status) => (
4562 hunk_hitbox.bounds,
4563 cx.theme().status().modified,
4564 Corners::all(px(0.)),
4565 secondary_status,
4566 ),
4567 DiffHunkStatus::Removed(secondary_status)
4568 if !display_row_range.is_empty() =>
4569 {
4570 (
4571 hunk_hitbox.bounds,
4572 cx.theme().status().deleted,
4573 Corners::all(px(0.)),
4574 secondary_status,
4575 )
4576 }
4577 DiffHunkStatus::Removed(secondary_status) => (
4578 Bounds::new(
4579 point(
4580 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4581 hunk_hitbox.origin.y,
4582 ),
4583 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4584 ),
4585 cx.theme().status().deleted,
4586 Corners::all(1. * line_height),
4587 secondary_status,
4588 ),
4589 }),
4590 };
4591
4592 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4593 hunk_to_paint
4594 {
4595 if *secondary_status != DiffHunkSecondaryStatus::None {
4596 background_color.a *= 0.6;
4597 }
4598 window.paint_quad(quad(
4599 hunk_bounds,
4600 corner_radii,
4601 background_color,
4602 Edges::default(),
4603 transparent_black(),
4604 ));
4605 }
4606 }
4607 });
4608 }
4609
4610 fn diff_hunk_bounds(
4611 snapshot: &EditorSnapshot,
4612 line_height: Pixels,
4613 gutter_bounds: Bounds<Pixels>,
4614 hunk: &DisplayDiffHunk,
4615 ) -> Bounds<Pixels> {
4616 let scroll_position = snapshot.scroll_position();
4617 let scroll_top = scroll_position.y * line_height;
4618 let gutter_strip_width = (0.275 * line_height).floor();
4619
4620 match hunk {
4621 DisplayDiffHunk::Folded { display_row, .. } => {
4622 let start_y = display_row.as_f32() * line_height - scroll_top;
4623 let end_y = start_y + line_height;
4624 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4625 let highlight_size = size(gutter_strip_width, end_y - start_y);
4626 Bounds::new(highlight_origin, highlight_size)
4627 }
4628 DisplayDiffHunk::Unfolded {
4629 display_row_range,
4630 status,
4631 ..
4632 } => {
4633 if status.is_removed() && display_row_range.is_empty() {
4634 let row = display_row_range.start;
4635
4636 let offset = line_height / 2.;
4637 let start_y = row.as_f32() * line_height - offset - scroll_top;
4638 let end_y = start_y + line_height;
4639
4640 let width = (0.35 * line_height).floor();
4641 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4642 let highlight_size = size(width, end_y - start_y);
4643 Bounds::new(highlight_origin, highlight_size)
4644 } else {
4645 let start_row = display_row_range.start;
4646 let end_row = display_row_range.end;
4647 // If we're in a multibuffer, row range span might include an
4648 // excerpt header, so if we were to draw the marker straight away,
4649 // the hunk might include the rows of that header.
4650 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4651 // Instead, we simply check whether the range we're dealing with includes
4652 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4653 let end_row_in_current_excerpt = snapshot
4654 .blocks_in_range(start_row..end_row)
4655 .find_map(|(start_row, block)| {
4656 if matches!(block, Block::ExcerptBoundary { .. }) {
4657 Some(start_row)
4658 } else {
4659 None
4660 }
4661 })
4662 .unwrap_or(end_row);
4663
4664 let start_y = start_row.as_f32() * line_height - scroll_top;
4665 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4666
4667 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4668 let highlight_size = size(gutter_strip_width, end_y - start_y);
4669 Bounds::new(highlight_origin, highlight_size)
4670 }
4671 }
4672 }
4673 }
4674
4675 fn paint_gutter_indicators(
4676 &self,
4677 layout: &mut EditorLayout,
4678 window: &mut Window,
4679 cx: &mut App,
4680 ) {
4681 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4682 window.with_element_namespace("crease_toggles", |window| {
4683 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4684 crease_toggle.paint(window, cx);
4685 }
4686 });
4687
4688 for test_indicator in layout.test_indicators.iter_mut() {
4689 test_indicator.paint(window, cx);
4690 }
4691
4692 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4693 indicator.paint(window, cx);
4694 }
4695 });
4696 }
4697
4698 fn paint_gutter_highlights(
4699 &self,
4700 layout: &mut EditorLayout,
4701 window: &mut Window,
4702 cx: &mut App,
4703 ) {
4704 for (_, hunk_hitbox) in &layout.display_hunks {
4705 if let Some(hunk_hitbox) = hunk_hitbox {
4706 if !self
4707 .editor
4708 .read(cx)
4709 .buffer()
4710 .read(cx)
4711 .all_diff_hunks_expanded()
4712 {
4713 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4714 }
4715 }
4716 }
4717
4718 let show_git_gutter = layout
4719 .position_map
4720 .snapshot
4721 .show_git_diff_gutter
4722 .unwrap_or_else(|| {
4723 matches!(
4724 ProjectSettings::get_global(cx).git.git_gutter,
4725 Some(GitGutterSetting::TrackedFiles)
4726 )
4727 });
4728 if show_git_gutter {
4729 Self::paint_diff_hunks(layout, window, cx)
4730 }
4731
4732 let highlight_width = 0.275 * layout.position_map.line_height;
4733 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4734 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4735 for (range, color) in &layout.highlighted_gutter_ranges {
4736 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4737 layout.visible_display_row_range.start - DisplayRow(1)
4738 } else {
4739 range.start.row()
4740 };
4741 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4742 layout.visible_display_row_range.end + DisplayRow(1)
4743 } else {
4744 range.end.row()
4745 };
4746
4747 let start_y = layout.gutter_hitbox.top()
4748 + start_row.0 as f32 * layout.position_map.line_height
4749 - layout.position_map.scroll_pixel_position.y;
4750 let end_y = layout.gutter_hitbox.top()
4751 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4752 - layout.position_map.scroll_pixel_position.y;
4753 let bounds = Bounds::from_corners(
4754 point(layout.gutter_hitbox.left(), start_y),
4755 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4756 );
4757 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4758 }
4759 });
4760 }
4761
4762 fn paint_blamed_display_rows(
4763 &self,
4764 layout: &mut EditorLayout,
4765 window: &mut Window,
4766 cx: &mut App,
4767 ) {
4768 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4769 return;
4770 };
4771
4772 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4773 for mut blame_element in blamed_display_rows.into_iter() {
4774 blame_element.paint(window, cx);
4775 }
4776 })
4777 }
4778
4779 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4780 window.with_content_mask(
4781 Some(ContentMask {
4782 bounds: layout.position_map.text_hitbox.bounds,
4783 }),
4784 |window| {
4785 let cursor_style = if self
4786 .editor
4787 .read(cx)
4788 .hovered_link_state
4789 .as_ref()
4790 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4791 {
4792 CursorStyle::PointingHand
4793 } else {
4794 CursorStyle::IBeam
4795 };
4796 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4797
4798 let invisible_display_ranges = self.paint_highlights(layout, window);
4799 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4800 self.paint_redactions(layout, window);
4801 self.paint_cursors(layout, window, cx);
4802 self.paint_inline_blame(layout, window, cx);
4803 self.paint_diff_hunk_controls(layout, window, cx);
4804 window.with_element_namespace("crease_trailers", |window| {
4805 for trailer in layout.crease_trailers.iter_mut().flatten() {
4806 trailer.element.paint(window, cx);
4807 }
4808 });
4809 },
4810 )
4811 }
4812
4813 fn paint_highlights(
4814 &mut self,
4815 layout: &mut EditorLayout,
4816 window: &mut Window,
4817 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4818 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4819 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4820 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4821 for (range, color) in &layout.highlighted_ranges {
4822 self.paint_highlighted_range(
4823 range.clone(),
4824 *color,
4825 Pixels::ZERO,
4826 line_end_overshoot,
4827 layout,
4828 window,
4829 );
4830 }
4831
4832 let corner_radius = 0.15 * layout.position_map.line_height;
4833
4834 for (player_color, selections) in &layout.selections {
4835 for selection in selections.iter() {
4836 self.paint_highlighted_range(
4837 selection.range.clone(),
4838 player_color.selection,
4839 corner_radius,
4840 corner_radius * 2.,
4841 layout,
4842 window,
4843 );
4844
4845 if selection.is_local && !selection.range.is_empty() {
4846 invisible_display_ranges.push(selection.range.clone());
4847 }
4848 }
4849 }
4850 invisible_display_ranges
4851 })
4852 }
4853
4854 fn paint_lines(
4855 &mut self,
4856 invisible_display_ranges: &[Range<DisplayPoint>],
4857 layout: &mut EditorLayout,
4858 window: &mut Window,
4859 cx: &mut App,
4860 ) {
4861 let whitespace_setting = self
4862 .editor
4863 .read(cx)
4864 .buffer
4865 .read(cx)
4866 .settings_at(0, cx)
4867 .show_whitespaces;
4868
4869 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4870 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4871 line_with_invisibles.draw(
4872 layout,
4873 row,
4874 layout.content_origin,
4875 whitespace_setting,
4876 invisible_display_ranges,
4877 window,
4878 cx,
4879 )
4880 }
4881
4882 for line_element in &mut layout.line_elements {
4883 line_element.paint(window, cx);
4884 }
4885 }
4886
4887 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4888 if layout.redacted_ranges.is_empty() {
4889 return;
4890 }
4891
4892 let line_end_overshoot = layout.line_end_overshoot();
4893
4894 // A softer than perfect black
4895 let redaction_color = gpui::rgb(0x0e1111);
4896
4897 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4898 for range in layout.redacted_ranges.iter() {
4899 self.paint_highlighted_range(
4900 range.clone(),
4901 redaction_color.into(),
4902 Pixels::ZERO,
4903 line_end_overshoot,
4904 layout,
4905 window,
4906 );
4907 }
4908 });
4909 }
4910
4911 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4912 for cursor in &mut layout.visible_cursors {
4913 cursor.paint(layout.content_origin, window, cx);
4914 }
4915 }
4916
4917 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4918 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4919
4920 if let Some(scrollbar_layout) = scrollbar_x {
4921 let hitbox = scrollbar_layout.hitbox.clone();
4922 let text_unit_size = scrollbar_layout.text_unit_size;
4923 let visible_range = scrollbar_layout.visible_range.clone();
4924 let thumb_bounds = scrollbar_layout.thumb_bounds();
4925
4926 if scrollbar_layout.visible {
4927 window.paint_layer(hitbox.bounds, |window| {
4928 window.paint_quad(quad(
4929 hitbox.bounds,
4930 Corners::default(),
4931 cx.theme().colors().scrollbar_track_background,
4932 Edges {
4933 top: Pixels::ZERO,
4934 right: Pixels::ZERO,
4935 bottom: Pixels::ZERO,
4936 left: Pixels::ZERO,
4937 },
4938 cx.theme().colors().scrollbar_track_border,
4939 ));
4940
4941 window.paint_quad(quad(
4942 thumb_bounds,
4943 Corners::default(),
4944 cx.theme().colors().scrollbar_thumb_background,
4945 Edges {
4946 top: Pixels::ZERO,
4947 right: Pixels::ZERO,
4948 bottom: Pixels::ZERO,
4949 left: ScrollbarLayout::BORDER_WIDTH,
4950 },
4951 cx.theme().colors().scrollbar_thumb_border,
4952 ));
4953 })
4954 }
4955
4956 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4957
4958 window.on_mouse_event({
4959 let editor = self.editor.clone();
4960
4961 // there may be a way to avoid this clone
4962 let hitbox = hitbox.clone();
4963
4964 let mut mouse_position = window.mouse_position();
4965 move |event: &MouseMoveEvent, phase, window, cx| {
4966 if phase == DispatchPhase::Capture {
4967 return;
4968 }
4969
4970 editor.update(cx, |editor, cx| {
4971 if event.pressed_button == Some(MouseButton::Left)
4972 && editor
4973 .scroll_manager
4974 .is_dragging_scrollbar(Axis::Horizontal)
4975 {
4976 let x = mouse_position.x;
4977 let new_x = event.position.x;
4978 if (hitbox.left()..hitbox.right()).contains(&x) {
4979 let mut position = editor.scroll_position(cx);
4980
4981 position.x += (new_x - x) / text_unit_size;
4982 if position.x < 0.0 {
4983 position.x = 0.0;
4984 }
4985 editor.set_scroll_position(position, window, cx);
4986 }
4987
4988 cx.stop_propagation();
4989 } else {
4990 editor.scroll_manager.set_is_dragging_scrollbar(
4991 Axis::Horizontal,
4992 false,
4993 cx,
4994 );
4995
4996 if hitbox.is_hovered(window) {
4997 editor.scroll_manager.show_scrollbar(window, cx);
4998 }
4999 }
5000 mouse_position = event.position;
5001 })
5002 }
5003 });
5004
5005 if self
5006 .editor
5007 .read(cx)
5008 .scroll_manager
5009 .is_dragging_scrollbar(Axis::Horizontal)
5010 {
5011 window.on_mouse_event({
5012 let editor = self.editor.clone();
5013 move |_: &MouseUpEvent, phase, _, cx| {
5014 if phase == DispatchPhase::Capture {
5015 return;
5016 }
5017
5018 editor.update(cx, |editor, cx| {
5019 editor.scroll_manager.set_is_dragging_scrollbar(
5020 Axis::Horizontal,
5021 false,
5022 cx,
5023 );
5024 cx.stop_propagation();
5025 });
5026 }
5027 });
5028 } else {
5029 window.on_mouse_event({
5030 let editor = self.editor.clone();
5031
5032 move |event: &MouseDownEvent, phase, window, cx| {
5033 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5034 return;
5035 }
5036
5037 editor.update(cx, |editor, cx| {
5038 editor.scroll_manager.set_is_dragging_scrollbar(
5039 Axis::Horizontal,
5040 true,
5041 cx,
5042 );
5043
5044 let x = event.position.x;
5045
5046 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5047 let center_row =
5048 ((x - hitbox.left()) / text_unit_size).round() as u32;
5049 let top_row = center_row.saturating_sub(
5050 (visible_range.end - visible_range.start) as u32 / 2,
5051 );
5052
5053 let mut position = editor.scroll_position(cx);
5054 position.x = top_row as f32;
5055
5056 editor.set_scroll_position(position, window, cx);
5057 } else {
5058 editor.scroll_manager.show_scrollbar(window, cx);
5059 }
5060
5061 cx.stop_propagation();
5062 });
5063 }
5064 });
5065 }
5066 }
5067
5068 if let Some(scrollbar_layout) = scrollbar_y {
5069 let hitbox = scrollbar_layout.hitbox.clone();
5070 let text_unit_size = scrollbar_layout.text_unit_size;
5071 let visible_range = scrollbar_layout.visible_range.clone();
5072 let thumb_bounds = scrollbar_layout.thumb_bounds();
5073
5074 if scrollbar_layout.visible {
5075 window.paint_layer(hitbox.bounds, |window| {
5076 window.paint_quad(quad(
5077 hitbox.bounds,
5078 Corners::default(),
5079 cx.theme().colors().scrollbar_track_background,
5080 Edges {
5081 top: Pixels::ZERO,
5082 right: Pixels::ZERO,
5083 bottom: Pixels::ZERO,
5084 left: ScrollbarLayout::BORDER_WIDTH,
5085 },
5086 cx.theme().colors().scrollbar_track_border,
5087 ));
5088
5089 let fast_markers =
5090 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5091 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5092 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5093
5094 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5095 for marker in markers.iter().chain(&fast_markers) {
5096 let mut marker = marker.clone();
5097 marker.bounds.origin += hitbox.origin;
5098 window.paint_quad(marker);
5099 }
5100
5101 window.paint_quad(quad(
5102 thumb_bounds,
5103 Corners::default(),
5104 cx.theme().colors().scrollbar_thumb_background,
5105 Edges {
5106 top: Pixels::ZERO,
5107 right: Pixels::ZERO,
5108 bottom: Pixels::ZERO,
5109 left: ScrollbarLayout::BORDER_WIDTH,
5110 },
5111 cx.theme().colors().scrollbar_thumb_border,
5112 ));
5113 });
5114 }
5115
5116 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5117
5118 window.on_mouse_event({
5119 let editor = self.editor.clone();
5120
5121 let hitbox = hitbox.clone();
5122
5123 let mut mouse_position = window.mouse_position();
5124 move |event: &MouseMoveEvent, phase, window, cx| {
5125 if phase == DispatchPhase::Capture {
5126 return;
5127 }
5128
5129 editor.update(cx, |editor, cx| {
5130 if event.pressed_button == Some(MouseButton::Left)
5131 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5132 {
5133 let y = mouse_position.y;
5134 let new_y = event.position.y;
5135 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5136 let mut position = editor.scroll_position(cx);
5137 position.y += (new_y - y) / text_unit_size;
5138 if position.y < 0.0 {
5139 position.y = 0.0;
5140 }
5141 editor.set_scroll_position(position, window, cx);
5142 }
5143 } else {
5144 editor.scroll_manager.set_is_dragging_scrollbar(
5145 Axis::Vertical,
5146 false,
5147 cx,
5148 );
5149
5150 if hitbox.is_hovered(window) {
5151 editor.scroll_manager.show_scrollbar(window, cx);
5152 }
5153 }
5154 mouse_position = event.position;
5155 })
5156 }
5157 });
5158
5159 if self
5160 .editor
5161 .read(cx)
5162 .scroll_manager
5163 .is_dragging_scrollbar(Axis::Vertical)
5164 {
5165 window.on_mouse_event({
5166 let editor = self.editor.clone();
5167 move |_: &MouseUpEvent, phase, _, cx| {
5168 if phase == DispatchPhase::Capture {
5169 return;
5170 }
5171
5172 editor.update(cx, |editor, cx| {
5173 editor.scroll_manager.set_is_dragging_scrollbar(
5174 Axis::Vertical,
5175 false,
5176 cx,
5177 );
5178 cx.stop_propagation();
5179 });
5180 }
5181 });
5182 } else {
5183 window.on_mouse_event({
5184 let editor = self.editor.clone();
5185
5186 move |event: &MouseDownEvent, phase, window, cx| {
5187 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5188 return;
5189 }
5190
5191 editor.update(cx, |editor, cx| {
5192 editor.scroll_manager.set_is_dragging_scrollbar(
5193 Axis::Vertical,
5194 true,
5195 cx,
5196 );
5197
5198 let y = event.position.y;
5199 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5200 let center_row =
5201 ((y - hitbox.top()) / text_unit_size).round() as u32;
5202 let top_row = center_row.saturating_sub(
5203 (visible_range.end - visible_range.start) as u32 / 2,
5204 );
5205 let mut position = editor.scroll_position(cx);
5206 position.y = top_row as f32;
5207 editor.set_scroll_position(position, window, cx);
5208 } else {
5209 editor.scroll_manager.show_scrollbar(window, cx);
5210 }
5211
5212 cx.stop_propagation();
5213 });
5214 }
5215 });
5216 }
5217 }
5218 }
5219
5220 fn collect_fast_scrollbar_markers(
5221 &self,
5222 layout: &EditorLayout,
5223 scrollbar_layout: &ScrollbarLayout,
5224 cx: &mut App,
5225 ) -> Vec<PaintQuad> {
5226 const LIMIT: usize = 100;
5227 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5228 return vec![];
5229 }
5230 let cursor_ranges = layout
5231 .cursors
5232 .iter()
5233 .map(|(point, color)| ColoredRange {
5234 start: point.row(),
5235 end: point.row(),
5236 color: *color,
5237 })
5238 .collect_vec();
5239 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5240 }
5241
5242 fn refresh_slow_scrollbar_markers(
5243 &self,
5244 layout: &EditorLayout,
5245 scrollbar_layout: &ScrollbarLayout,
5246 window: &mut Window,
5247 cx: &mut App,
5248 ) {
5249 self.editor.update(cx, |editor, cx| {
5250 if !editor.is_singleton(cx)
5251 || !editor
5252 .scrollbar_marker_state
5253 .should_refresh(scrollbar_layout.hitbox.size)
5254 {
5255 return;
5256 }
5257
5258 let scrollbar_layout = scrollbar_layout.clone();
5259 let background_highlights = editor.background_highlights.clone();
5260 let snapshot = layout.position_map.snapshot.clone();
5261 let theme = cx.theme().clone();
5262 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5263
5264 editor.scrollbar_marker_state.dirty = false;
5265 editor.scrollbar_marker_state.pending_refresh =
5266 Some(cx.spawn_in(window, |editor, mut cx| async move {
5267 let scrollbar_size = scrollbar_layout.hitbox.size;
5268 let scrollbar_markers = cx
5269 .background_spawn(async move {
5270 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5271 let mut marker_quads = Vec::new();
5272 if scrollbar_settings.git_diff {
5273 let marker_row_ranges =
5274 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5275 let start_display_row =
5276 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5277 .to_display_point(&snapshot.display_snapshot)
5278 .row();
5279 let mut end_display_row =
5280 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5281 .to_display_point(&snapshot.display_snapshot)
5282 .row();
5283 if end_display_row != start_display_row {
5284 end_display_row.0 -= 1;
5285 }
5286 let color = match &hunk.status() {
5287 DiffHunkStatus::Added(_) => theme.status().created,
5288 DiffHunkStatus::Modified(_) => theme.status().modified,
5289 DiffHunkStatus::Removed(_) => theme.status().deleted,
5290 };
5291 ColoredRange {
5292 start: start_display_row,
5293 end: end_display_row,
5294 color,
5295 }
5296 });
5297
5298 marker_quads.extend(
5299 scrollbar_layout
5300 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5301 );
5302 }
5303
5304 for (background_highlight_id, (_, background_ranges)) in
5305 background_highlights.iter()
5306 {
5307 let is_search_highlights = *background_highlight_id
5308 == TypeId::of::<BufferSearchHighlights>();
5309 let is_text_highlights = *background_highlight_id
5310 == TypeId::of::<SelectedTextHighlight>();
5311 let is_symbol_occurrences = *background_highlight_id
5312 == TypeId::of::<DocumentHighlightRead>()
5313 || *background_highlight_id
5314 == TypeId::of::<DocumentHighlightWrite>();
5315 if (is_search_highlights && scrollbar_settings.search_results)
5316 || (is_text_highlights && scrollbar_settings.selected_text)
5317 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5318 {
5319 let mut color = theme.status().info;
5320 if is_symbol_occurrences {
5321 color.fade_out(0.5);
5322 }
5323 let marker_row_ranges = background_ranges.iter().map(|range| {
5324 let display_start = range
5325 .start
5326 .to_display_point(&snapshot.display_snapshot);
5327 let display_end =
5328 range.end.to_display_point(&snapshot.display_snapshot);
5329 ColoredRange {
5330 start: display_start.row(),
5331 end: display_end.row(),
5332 color,
5333 }
5334 });
5335 marker_quads.extend(
5336 scrollbar_layout
5337 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5338 );
5339 }
5340 }
5341
5342 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5343 let diagnostics = snapshot
5344 .buffer_snapshot
5345 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5346 // Don't show diagnostics the user doesn't care about
5347 .filter(|diagnostic| {
5348 match (
5349 scrollbar_settings.diagnostics,
5350 diagnostic.diagnostic.severity,
5351 ) {
5352 (ScrollbarDiagnostics::All, _) => true,
5353 (
5354 ScrollbarDiagnostics::Error,
5355 DiagnosticSeverity::ERROR,
5356 ) => true,
5357 (
5358 ScrollbarDiagnostics::Warning,
5359 DiagnosticSeverity::ERROR
5360 | DiagnosticSeverity::WARNING,
5361 ) => true,
5362 (
5363 ScrollbarDiagnostics::Information,
5364 DiagnosticSeverity::ERROR
5365 | DiagnosticSeverity::WARNING
5366 | DiagnosticSeverity::INFORMATION,
5367 ) => true,
5368 (_, _) => false,
5369 }
5370 })
5371 // We want to sort by severity, in order to paint the most severe diagnostics last.
5372 .sorted_by_key(|diagnostic| {
5373 std::cmp::Reverse(diagnostic.diagnostic.severity)
5374 });
5375
5376 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5377 let start_display = diagnostic
5378 .range
5379 .start
5380 .to_display_point(&snapshot.display_snapshot);
5381 let end_display = diagnostic
5382 .range
5383 .end
5384 .to_display_point(&snapshot.display_snapshot);
5385 let color = match diagnostic.diagnostic.severity {
5386 DiagnosticSeverity::ERROR => theme.status().error,
5387 DiagnosticSeverity::WARNING => theme.status().warning,
5388 DiagnosticSeverity::INFORMATION => theme.status().info,
5389 _ => theme.status().hint,
5390 };
5391 ColoredRange {
5392 start: start_display.row(),
5393 end: end_display.row(),
5394 color,
5395 }
5396 });
5397 marker_quads.extend(
5398 scrollbar_layout
5399 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5400 );
5401 }
5402
5403 Arc::from(marker_quads)
5404 })
5405 .await;
5406
5407 editor.update(&mut cx, |editor, cx| {
5408 editor.scrollbar_marker_state.markers = scrollbar_markers;
5409 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5410 editor.scrollbar_marker_state.pending_refresh = None;
5411 cx.notify();
5412 })?;
5413
5414 Ok(())
5415 }));
5416 });
5417 }
5418
5419 fn paint_highlighted_range(
5420 &self,
5421 range: Range<DisplayPoint>,
5422 color: Hsla,
5423 corner_radius: Pixels,
5424 line_end_overshoot: Pixels,
5425 layout: &EditorLayout,
5426 window: &mut Window,
5427 ) {
5428 let start_row = layout.visible_display_row_range.start;
5429 let end_row = layout.visible_display_row_range.end;
5430 if range.start != range.end {
5431 let row_range = if range.end.column() == 0 {
5432 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5433 } else {
5434 cmp::max(range.start.row(), start_row)
5435 ..cmp::min(range.end.row().next_row(), end_row)
5436 };
5437
5438 let highlighted_range = HighlightedRange {
5439 color,
5440 line_height: layout.position_map.line_height,
5441 corner_radius,
5442 start_y: layout.content_origin.y
5443 + row_range.start.as_f32() * layout.position_map.line_height
5444 - layout.position_map.scroll_pixel_position.y,
5445 lines: row_range
5446 .iter_rows()
5447 .map(|row| {
5448 let line_layout =
5449 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5450 HighlightedRangeLine {
5451 start_x: if row == range.start.row() {
5452 layout.content_origin.x
5453 + line_layout.x_for_index(range.start.column() as usize)
5454 - layout.position_map.scroll_pixel_position.x
5455 } else {
5456 layout.content_origin.x
5457 - layout.position_map.scroll_pixel_position.x
5458 },
5459 end_x: if row == range.end.row() {
5460 layout.content_origin.x
5461 + line_layout.x_for_index(range.end.column() as usize)
5462 - layout.position_map.scroll_pixel_position.x
5463 } else {
5464 layout.content_origin.x + line_layout.width + line_end_overshoot
5465 - layout.position_map.scroll_pixel_position.x
5466 },
5467 }
5468 })
5469 .collect(),
5470 };
5471
5472 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5473 }
5474 }
5475
5476 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5477 if let Some(mut inline_blame) = layout.inline_blame.take() {
5478 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5479 inline_blame.paint(window, cx);
5480 })
5481 }
5482 }
5483
5484 fn paint_diff_hunk_controls(
5485 &mut self,
5486 layout: &mut EditorLayout,
5487 window: &mut Window,
5488 cx: &mut App,
5489 ) {
5490 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5491 diff_hunk_control.paint(window, cx);
5492 }
5493 }
5494
5495 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5496 for mut block in layout.blocks.drain(..) {
5497 block.element.paint(window, cx);
5498 }
5499 }
5500
5501 fn paint_inline_completion_popover(
5502 &mut self,
5503 layout: &mut EditorLayout,
5504 window: &mut Window,
5505 cx: &mut App,
5506 ) {
5507 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5508 inline_completion_popover.paint(window, cx);
5509 }
5510 }
5511
5512 fn paint_mouse_context_menu(
5513 &mut self,
5514 layout: &mut EditorLayout,
5515 window: &mut Window,
5516 cx: &mut App,
5517 ) {
5518 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5519 mouse_context_menu.paint(window, cx);
5520 }
5521 }
5522
5523 fn paint_scroll_wheel_listener(
5524 &mut self,
5525 layout: &EditorLayout,
5526 window: &mut Window,
5527 cx: &mut App,
5528 ) {
5529 window.on_mouse_event({
5530 let position_map = layout.position_map.clone();
5531 let editor = self.editor.clone();
5532 let hitbox = layout.hitbox.clone();
5533 let mut delta = ScrollDelta::default();
5534
5535 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5536 // accidentally turn off their scrolling.
5537 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5538
5539 move |event: &ScrollWheelEvent, phase, window, cx| {
5540 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5541 delta = delta.coalesce(event.delta);
5542 editor.update(cx, |editor, cx| {
5543 let position_map: &PositionMap = &position_map;
5544
5545 let line_height = position_map.line_height;
5546 let max_glyph_width = position_map.em_width;
5547 let (delta, axis) = match delta {
5548 gpui::ScrollDelta::Pixels(mut pixels) => {
5549 //Trackpad
5550 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5551 (pixels, axis)
5552 }
5553
5554 gpui::ScrollDelta::Lines(lines) => {
5555 //Not trackpad
5556 let pixels =
5557 point(lines.x * max_glyph_width, lines.y * line_height);
5558 (pixels, None)
5559 }
5560 };
5561
5562 let current_scroll_position = position_map.snapshot.scroll_position();
5563 let x = (current_scroll_position.x * max_glyph_width
5564 - (delta.x * scroll_sensitivity))
5565 / max_glyph_width;
5566 let y = (current_scroll_position.y * line_height
5567 - (delta.y * scroll_sensitivity))
5568 / line_height;
5569 let mut scroll_position =
5570 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5571 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5572 if forbid_vertical_scroll {
5573 scroll_position.y = current_scroll_position.y;
5574 }
5575
5576 if scroll_position != current_scroll_position {
5577 editor.scroll(scroll_position, axis, window, cx);
5578 cx.stop_propagation();
5579 } else if y < 0. {
5580 // Due to clamping, we may fail to detect cases of overscroll to the top;
5581 // We want the scroll manager to get an update in such cases and detect the change of direction
5582 // on the next frame.
5583 cx.notify();
5584 }
5585 });
5586 }
5587 }
5588 });
5589 }
5590
5591 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5592 self.paint_scroll_wheel_listener(layout, window, cx);
5593
5594 window.on_mouse_event({
5595 let position_map = layout.position_map.clone();
5596 let editor = self.editor.clone();
5597 let diff_hunk_range =
5598 layout
5599 .display_hunks
5600 .iter()
5601 .find_map(|(hunk, hunk_hitbox)| match hunk {
5602 DisplayDiffHunk::Folded { .. } => None,
5603 DisplayDiffHunk::Unfolded {
5604 multi_buffer_range, ..
5605 } => {
5606 if hunk_hitbox
5607 .as_ref()
5608 .map(|hitbox| hitbox.is_hovered(window))
5609 .unwrap_or(false)
5610 {
5611 Some(multi_buffer_range.clone())
5612 } else {
5613 None
5614 }
5615 }
5616 });
5617 let line_numbers = layout.line_numbers.clone();
5618
5619 move |event: &MouseDownEvent, phase, window, cx| {
5620 if phase == DispatchPhase::Bubble {
5621 match event.button {
5622 MouseButton::Left => editor.update(cx, |editor, cx| {
5623 let pending_mouse_down = editor
5624 .pending_mouse_down
5625 .get_or_insert_with(Default::default)
5626 .clone();
5627
5628 *pending_mouse_down.borrow_mut() = Some(event.clone());
5629
5630 Self::mouse_left_down(
5631 editor,
5632 event,
5633 diff_hunk_range.clone(),
5634 &position_map,
5635 line_numbers.as_ref(),
5636 window,
5637 cx,
5638 );
5639 }),
5640 MouseButton::Right => editor.update(cx, |editor, cx| {
5641 Self::mouse_right_down(editor, event, &position_map, window, cx);
5642 }),
5643 MouseButton::Middle => editor.update(cx, |editor, cx| {
5644 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5645 }),
5646 _ => {}
5647 };
5648 }
5649 }
5650 });
5651
5652 window.on_mouse_event({
5653 let editor = self.editor.clone();
5654 let position_map = layout.position_map.clone();
5655
5656 move |event: &MouseUpEvent, phase, window, cx| {
5657 if phase == DispatchPhase::Bubble {
5658 editor.update(cx, |editor, cx| {
5659 Self::mouse_up(editor, event, &position_map, window, cx)
5660 });
5661 }
5662 }
5663 });
5664
5665 window.on_mouse_event({
5666 let editor = self.editor.clone();
5667 let position_map = layout.position_map.clone();
5668 let mut captured_mouse_down = None;
5669
5670 move |event: &MouseUpEvent, phase, window, cx| match phase {
5671 // Clear the pending mouse down during the capture phase,
5672 // so that it happens even if another event handler stops
5673 // propagation.
5674 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5675 let pending_mouse_down = editor
5676 .pending_mouse_down
5677 .get_or_insert_with(Default::default)
5678 .clone();
5679
5680 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5681 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5682 captured_mouse_down = pending_mouse_down.take();
5683 window.refresh();
5684 }
5685 }),
5686 // Fire click handlers during the bubble phase.
5687 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5688 if let Some(mouse_down) = captured_mouse_down.take() {
5689 let event = ClickEvent {
5690 down: mouse_down,
5691 up: event.clone(),
5692 };
5693 Self::click(editor, &event, &position_map, window, cx);
5694 }
5695 }),
5696 }
5697 });
5698
5699 window.on_mouse_event({
5700 let position_map = layout.position_map.clone();
5701 let editor = self.editor.clone();
5702
5703 move |event: &MouseMoveEvent, phase, window, cx| {
5704 if phase == DispatchPhase::Bubble {
5705 editor.update(cx, |editor, cx| {
5706 if editor.hover_state.focused(window, cx) {
5707 return;
5708 }
5709 if event.pressed_button == Some(MouseButton::Left)
5710 || event.pressed_button == Some(MouseButton::Middle)
5711 {
5712 Self::mouse_dragged(editor, event, &position_map, window, cx)
5713 }
5714
5715 Self::mouse_moved(editor, event, &position_map, window, cx)
5716 });
5717 }
5718 }
5719 });
5720 }
5721
5722 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5723 bounds.top_right().x - self.style.scrollbar_width
5724 }
5725
5726 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5727 let style = &self.style;
5728 let font_size = style.text.font_size.to_pixels(window.rem_size());
5729 let layout = window
5730 .text_system()
5731 .shape_line(
5732 SharedString::from(" ".repeat(column)),
5733 font_size,
5734 &[TextRun {
5735 len: column,
5736 font: style.text.font(),
5737 color: Hsla::default(),
5738 background_color: None,
5739 underline: None,
5740 strikethrough: None,
5741 }],
5742 )
5743 .unwrap();
5744
5745 layout.width
5746 }
5747
5748 fn max_line_number_width(
5749 &self,
5750 snapshot: &EditorSnapshot,
5751 window: &mut Window,
5752 cx: &mut App,
5753 ) -> Pixels {
5754 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5755 self.column_pixels(digit_count, window, cx)
5756 }
5757
5758 fn shape_line_number(
5759 &self,
5760 text: SharedString,
5761 color: Hsla,
5762 window: &mut Window,
5763 ) -> anyhow::Result<ShapedLine> {
5764 let run = TextRun {
5765 len: text.len(),
5766 font: self.style.text.font(),
5767 color,
5768 background_color: None,
5769 underline: None,
5770 strikethrough: None,
5771 };
5772 window.text_system().shape_line(
5773 text,
5774 self.style.text.font_size.to_pixels(window.rem_size()),
5775 &[run],
5776 )
5777 }
5778}
5779
5780fn header_jump_data(
5781 snapshot: &EditorSnapshot,
5782 block_row_start: DisplayRow,
5783 height: u32,
5784 for_excerpt: &ExcerptInfo,
5785) -> JumpData {
5786 let range = &for_excerpt.range;
5787 let buffer = &for_excerpt.buffer;
5788 let jump_anchor = range
5789 .primary
5790 .as_ref()
5791 .map_or(range.context.start, |primary| primary.start);
5792
5793 let excerpt_start = range.context.start;
5794 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5795 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5796 0
5797 } else {
5798 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5799 jump_position.row.saturating_sub(excerpt_start_point.row)
5800 };
5801
5802 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5803 .saturating_sub(
5804 snapshot
5805 .scroll_anchor
5806 .scroll_position(&snapshot.display_snapshot)
5807 .y as u32,
5808 );
5809
5810 JumpData::MultiBufferPoint {
5811 excerpt_id: for_excerpt.id,
5812 anchor: jump_anchor,
5813 position: jump_position,
5814 line_offset_from_top,
5815 }
5816}
5817
5818pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5819
5820impl AcceptEditPredictionBinding {
5821 pub fn keystroke(&self) -> Option<&Keystroke> {
5822 if let Some(binding) = self.0.as_ref() {
5823 match &binding.keystrokes() {
5824 [keystroke] => Some(keystroke),
5825 _ => None,
5826 }
5827 } else {
5828 None
5829 }
5830 }
5831}
5832
5833fn prepaint_gutter_button(
5834 button: IconButton,
5835 row: DisplayRow,
5836 line_height: Pixels,
5837 gutter_dimensions: &GutterDimensions,
5838 scroll_pixel_position: gpui::Point<Pixels>,
5839 gutter_hitbox: &Hitbox,
5840 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5841 window: &mut Window,
5842 cx: &mut App,
5843) -> AnyElement {
5844 let mut button = button.into_any_element();
5845 let available_space = size(
5846 AvailableSpace::MinContent,
5847 AvailableSpace::Definite(line_height),
5848 );
5849 let indicator_size = button.layout_as_root(available_space, window, cx);
5850
5851 let blame_width = gutter_dimensions.git_blame_entries_width;
5852 let gutter_width = rows_with_hunk_bounds
5853 .get(&row)
5854 .map(|bounds| bounds.size.width);
5855 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5856
5857 let mut x = left_offset;
5858 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5859 - indicator_size.width
5860 - left_offset;
5861 x += available_width / 2.;
5862
5863 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5864 y += (line_height - indicator_size.height) / 2.;
5865
5866 button.prepaint_as_root(
5867 gutter_hitbox.origin + point(x, y),
5868 available_space,
5869 window,
5870 cx,
5871 );
5872 button
5873}
5874
5875fn render_inline_blame_entry(
5876 blame: &gpui::Entity<GitBlame>,
5877 blame_entry: BlameEntry,
5878 style: &EditorStyle,
5879 workspace: Option<WeakEntity<Workspace>>,
5880 cx: &mut App,
5881) -> AnyElement {
5882 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5883
5884 let author = blame_entry.author.as_deref().unwrap_or_default();
5885 let summary_enabled = ProjectSettings::get_global(cx)
5886 .git
5887 .show_inline_commit_summary();
5888
5889 let text = match blame_entry.summary.as_ref() {
5890 Some(summary) if summary_enabled => {
5891 format!("{}, {} - {}", author, relative_timestamp, summary)
5892 }
5893 _ => format!("{}, {}", author, relative_timestamp),
5894 };
5895
5896 let details = blame.read(cx).details_for_entry(&blame_entry);
5897
5898 let tooltip =
5899 cx.new(|_| CommitTooltip::blame_entry(blame_entry, details, style.clone(), workspace));
5900
5901 h_flex()
5902 .id("inline-blame")
5903 .w_full()
5904 .font_family(style.text.font().family)
5905 .text_color(cx.theme().status().hint)
5906 .line_height(style.text.line_height)
5907 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5908 .child(text)
5909 .gap_2()
5910 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5911 .into_any()
5912}
5913
5914fn render_blame_entry(
5915 ix: usize,
5916 blame: &gpui::Entity<GitBlame>,
5917 blame_entry: BlameEntry,
5918 style: &EditorStyle,
5919 last_used_color: &mut Option<(PlayerColor, Oid)>,
5920 editor: Entity<Editor>,
5921 cx: &mut App,
5922) -> AnyElement {
5923 let mut sha_color = cx
5924 .theme()
5925 .players()
5926 .color_for_participant(blame_entry.sha.into());
5927 // If the last color we used is the same as the one we get for this line, but
5928 // the commit SHAs are different, then we try again to get a different color.
5929 match *last_used_color {
5930 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5931 let index: u32 = blame_entry.sha.into();
5932 sha_color = cx.theme().players().color_for_participant(index + 1);
5933 }
5934 _ => {}
5935 };
5936 last_used_color.replace((sha_color, blame_entry.sha));
5937
5938 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5939
5940 let short_commit_id = blame_entry.sha.display_short();
5941
5942 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5943 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5944
5945 let details = blame.read(cx).details_for_entry(&blame_entry);
5946
5947 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5948
5949 let tooltip = cx.new(|_| {
5950 CommitTooltip::blame_entry(
5951 blame_entry.clone(),
5952 details.clone(),
5953 style.clone(),
5954 workspace,
5955 )
5956 });
5957
5958 h_flex()
5959 .w_full()
5960 .justify_between()
5961 .font_family(style.text.font().family)
5962 .line_height(style.text.line_height)
5963 .id(("blame", ix))
5964 .text_color(cx.theme().status().hint)
5965 .pr_2()
5966 .gap_2()
5967 .child(
5968 h_flex()
5969 .items_center()
5970 .gap_2()
5971 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5972 .child(name),
5973 )
5974 .child(relative_timestamp)
5975 .on_mouse_down(MouseButton::Right, {
5976 let blame_entry = blame_entry.clone();
5977 let details = details.clone();
5978 move |event, window, cx| {
5979 deploy_blame_entry_context_menu(
5980 &blame_entry,
5981 details.as_ref(),
5982 editor.clone(),
5983 event.position,
5984 window,
5985 cx,
5986 );
5987 }
5988 })
5989 .hover(|style| style.bg(cx.theme().colors().element_hover))
5990 .when_some(
5991 details.and_then(|details| details.permalink),
5992 |this, url| {
5993 let url = url.clone();
5994 this.cursor_pointer().on_click(move |_, _, cx| {
5995 cx.stop_propagation();
5996 cx.open_url(url.as_str())
5997 })
5998 },
5999 )
6000 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6001 .into_any()
6002}
6003
6004fn deploy_blame_entry_context_menu(
6005 blame_entry: &BlameEntry,
6006 details: Option<&ParsedCommitMessage>,
6007 editor: Entity<Editor>,
6008 position: gpui::Point<Pixels>,
6009 window: &mut Window,
6010 cx: &mut App,
6011) {
6012 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6013 let sha = format!("{}", blame_entry.sha);
6014 menu.on_blur_subscription(Subscription::new(|| {}))
6015 .entry("Copy commit SHA", None, move |_, cx| {
6016 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6017 })
6018 .when_some(
6019 details.and_then(|details| details.permalink.clone()),
6020 |this, url| {
6021 this.entry("Open permalink", None, move |_, cx| {
6022 cx.open_url(url.as_str())
6023 })
6024 },
6025 )
6026 });
6027
6028 editor.update(cx, move |editor, cx| {
6029 editor.mouse_context_menu = Some(MouseContextMenu::new(
6030 MenuPosition::PinnedToScreen(position),
6031 context_menu,
6032 window,
6033 cx,
6034 ));
6035 cx.notify();
6036 });
6037}
6038
6039#[derive(Debug)]
6040pub(crate) struct LineWithInvisibles {
6041 fragments: SmallVec<[LineFragment; 1]>,
6042 invisibles: Vec<Invisible>,
6043 len: usize,
6044 width: Pixels,
6045 font_size: Pixels,
6046}
6047
6048#[allow(clippy::large_enum_variant)]
6049enum LineFragment {
6050 Text(ShapedLine),
6051 Element {
6052 element: Option<AnyElement>,
6053 size: Size<Pixels>,
6054 len: usize,
6055 },
6056}
6057
6058impl fmt::Debug for LineFragment {
6059 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6060 match self {
6061 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6062 LineFragment::Element { size, len, .. } => f
6063 .debug_struct("Element")
6064 .field("size", size)
6065 .field("len", len)
6066 .finish(),
6067 }
6068 }
6069}
6070
6071impl LineWithInvisibles {
6072 fn from_chunks<'a>(
6073 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6074 editor_style: &EditorStyle,
6075 max_line_len: usize,
6076 max_line_count: usize,
6077 editor_mode: EditorMode,
6078 text_width: Pixels,
6079 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6080 window: &mut Window,
6081 cx: &mut App,
6082 ) -> Vec<Self> {
6083 let text_style = &editor_style.text;
6084 let mut layouts = Vec::with_capacity(max_line_count);
6085 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6086 let mut line = String::new();
6087 let mut invisibles = Vec::new();
6088 let mut width = Pixels::ZERO;
6089 let mut len = 0;
6090 let mut styles = Vec::new();
6091 let mut non_whitespace_added = false;
6092 let mut row = 0;
6093 let mut line_exceeded_max_len = false;
6094 let font_size = text_style.font_size.to_pixels(window.rem_size());
6095
6096 let ellipsis = SharedString::from("⋯");
6097
6098 for highlighted_chunk in chunks.chain([HighlightedChunk {
6099 text: "\n",
6100 style: None,
6101 is_tab: false,
6102 replacement: None,
6103 }]) {
6104 if let Some(replacement) = highlighted_chunk.replacement {
6105 if !line.is_empty() {
6106 let shaped_line = window
6107 .text_system()
6108 .shape_line(line.clone().into(), font_size, &styles)
6109 .unwrap();
6110 width += shaped_line.width;
6111 len += shaped_line.len;
6112 fragments.push(LineFragment::Text(shaped_line));
6113 line.clear();
6114 styles.clear();
6115 }
6116
6117 match replacement {
6118 ChunkReplacement::Renderer(renderer) => {
6119 let available_width = if renderer.constrain_width {
6120 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6121 ellipsis.clone()
6122 } else {
6123 SharedString::from(Arc::from(highlighted_chunk.text))
6124 };
6125 let shaped_line = window
6126 .text_system()
6127 .shape_line(
6128 chunk,
6129 font_size,
6130 &[text_style.to_run(highlighted_chunk.text.len())],
6131 )
6132 .unwrap();
6133 AvailableSpace::Definite(shaped_line.width)
6134 } else {
6135 AvailableSpace::MinContent
6136 };
6137
6138 let mut element = (renderer.render)(&mut ChunkRendererContext {
6139 context: cx,
6140 window,
6141 max_width: text_width,
6142 });
6143 let line_height = text_style.line_height_in_pixels(window.rem_size());
6144 let size = element.layout_as_root(
6145 size(available_width, AvailableSpace::Definite(line_height)),
6146 window,
6147 cx,
6148 );
6149
6150 width += size.width;
6151 len += highlighted_chunk.text.len();
6152 fragments.push(LineFragment::Element {
6153 element: Some(element),
6154 size,
6155 len: highlighted_chunk.text.len(),
6156 });
6157 }
6158 ChunkReplacement::Str(x) => {
6159 let text_style = if let Some(style) = highlighted_chunk.style {
6160 Cow::Owned(text_style.clone().highlight(style))
6161 } else {
6162 Cow::Borrowed(text_style)
6163 };
6164
6165 let run = TextRun {
6166 len: x.len(),
6167 font: text_style.font(),
6168 color: text_style.color,
6169 background_color: text_style.background_color,
6170 underline: text_style.underline,
6171 strikethrough: text_style.strikethrough,
6172 };
6173 let line_layout = window
6174 .text_system()
6175 .shape_line(x, font_size, &[run])
6176 .unwrap()
6177 .with_len(highlighted_chunk.text.len());
6178
6179 width += line_layout.width;
6180 len += highlighted_chunk.text.len();
6181 fragments.push(LineFragment::Text(line_layout))
6182 }
6183 }
6184 } else {
6185 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6186 if ix > 0 {
6187 let shaped_line = window
6188 .text_system()
6189 .shape_line(line.clone().into(), font_size, &styles)
6190 .unwrap();
6191 width += shaped_line.width;
6192 len += shaped_line.len;
6193 fragments.push(LineFragment::Text(shaped_line));
6194 layouts.push(Self {
6195 width: mem::take(&mut width),
6196 len: mem::take(&mut len),
6197 fragments: mem::take(&mut fragments),
6198 invisibles: std::mem::take(&mut invisibles),
6199 font_size,
6200 });
6201
6202 line.clear();
6203 styles.clear();
6204 row += 1;
6205 line_exceeded_max_len = false;
6206 non_whitespace_added = false;
6207 if row == max_line_count {
6208 return layouts;
6209 }
6210 }
6211
6212 if !line_chunk.is_empty() && !line_exceeded_max_len {
6213 let text_style = if let Some(style) = highlighted_chunk.style {
6214 Cow::Owned(text_style.clone().highlight(style))
6215 } else {
6216 Cow::Borrowed(text_style)
6217 };
6218
6219 if line.len() + line_chunk.len() > max_line_len {
6220 let mut chunk_len = max_line_len - line.len();
6221 while !line_chunk.is_char_boundary(chunk_len) {
6222 chunk_len -= 1;
6223 }
6224 line_chunk = &line_chunk[..chunk_len];
6225 line_exceeded_max_len = true;
6226 }
6227
6228 styles.push(TextRun {
6229 len: line_chunk.len(),
6230 font: text_style.font(),
6231 color: text_style.color,
6232 background_color: text_style.background_color,
6233 underline: text_style.underline,
6234 strikethrough: text_style.strikethrough,
6235 });
6236
6237 if editor_mode == EditorMode::Full {
6238 // Line wrap pads its contents with fake whitespaces,
6239 // avoid printing them
6240 let is_soft_wrapped = is_row_soft_wrapped(row);
6241 if highlighted_chunk.is_tab {
6242 if non_whitespace_added || !is_soft_wrapped {
6243 invisibles.push(Invisible::Tab {
6244 line_start_offset: line.len(),
6245 line_end_offset: line.len() + line_chunk.len(),
6246 });
6247 }
6248 } else {
6249 invisibles.extend(line_chunk.char_indices().filter_map(
6250 |(index, c)| {
6251 let is_whitespace = c.is_whitespace();
6252 non_whitespace_added |= !is_whitespace;
6253 if is_whitespace
6254 && (non_whitespace_added || !is_soft_wrapped)
6255 {
6256 Some(Invisible::Whitespace {
6257 line_offset: line.len() + index,
6258 })
6259 } else {
6260 None
6261 }
6262 },
6263 ))
6264 }
6265 }
6266
6267 line.push_str(line_chunk);
6268 }
6269 }
6270 }
6271 }
6272
6273 layouts
6274 }
6275
6276 fn prepaint(
6277 &mut self,
6278 line_height: Pixels,
6279 scroll_pixel_position: gpui::Point<Pixels>,
6280 row: DisplayRow,
6281 content_origin: gpui::Point<Pixels>,
6282 line_elements: &mut SmallVec<[AnyElement; 1]>,
6283 window: &mut Window,
6284 cx: &mut App,
6285 ) {
6286 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6287 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6288 for fragment in &mut self.fragments {
6289 match fragment {
6290 LineFragment::Text(line) => {
6291 fragment_origin.x += line.width;
6292 }
6293 LineFragment::Element { element, size, .. } => {
6294 let mut element = element
6295 .take()
6296 .expect("you can't prepaint LineWithInvisibles twice");
6297
6298 // Center the element vertically within the line.
6299 let mut element_origin = fragment_origin;
6300 element_origin.y += (line_height - size.height) / 2.;
6301 element.prepaint_at(element_origin, window, cx);
6302 line_elements.push(element);
6303
6304 fragment_origin.x += size.width;
6305 }
6306 }
6307 }
6308 }
6309
6310 fn draw(
6311 &self,
6312 layout: &EditorLayout,
6313 row: DisplayRow,
6314 content_origin: gpui::Point<Pixels>,
6315 whitespace_setting: ShowWhitespaceSetting,
6316 selection_ranges: &[Range<DisplayPoint>],
6317 window: &mut Window,
6318 cx: &mut App,
6319 ) {
6320 let line_height = layout.position_map.line_height;
6321 let line_y = line_height
6322 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6323
6324 let mut fragment_origin =
6325 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6326
6327 for fragment in &self.fragments {
6328 match fragment {
6329 LineFragment::Text(line) => {
6330 line.paint(fragment_origin, line_height, window, cx)
6331 .log_err();
6332 fragment_origin.x += line.width;
6333 }
6334 LineFragment::Element { size, .. } => {
6335 fragment_origin.x += size.width;
6336 }
6337 }
6338 }
6339
6340 self.draw_invisibles(
6341 selection_ranges,
6342 layout,
6343 content_origin,
6344 line_y,
6345 row,
6346 line_height,
6347 whitespace_setting,
6348 window,
6349 cx,
6350 );
6351 }
6352
6353 fn draw_invisibles(
6354 &self,
6355 selection_ranges: &[Range<DisplayPoint>],
6356 layout: &EditorLayout,
6357 content_origin: gpui::Point<Pixels>,
6358 line_y: Pixels,
6359 row: DisplayRow,
6360 line_height: Pixels,
6361 whitespace_setting: ShowWhitespaceSetting,
6362 window: &mut Window,
6363 cx: &mut App,
6364 ) {
6365 let extract_whitespace_info = |invisible: &Invisible| {
6366 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6367 Invisible::Tab {
6368 line_start_offset,
6369 line_end_offset,
6370 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6371 Invisible::Whitespace { line_offset } => {
6372 (*line_offset, line_offset + 1, &layout.space_invisible)
6373 }
6374 };
6375
6376 let x_offset = self.x_for_index(token_offset);
6377 let invisible_offset =
6378 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6379 let origin = content_origin
6380 + gpui::point(
6381 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6382 line_y,
6383 );
6384
6385 (
6386 [token_offset, token_end_offset],
6387 Box::new(move |window: &mut Window, cx: &mut App| {
6388 invisible_symbol
6389 .paint(origin, line_height, window, cx)
6390 .log_err();
6391 }),
6392 )
6393 };
6394
6395 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6396 match whitespace_setting {
6397 ShowWhitespaceSetting::None => (),
6398 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6399 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6400 let invisible_point = DisplayPoint::new(row, start as u32);
6401 if !selection_ranges
6402 .iter()
6403 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6404 {
6405 return;
6406 }
6407
6408 paint(window, cx);
6409 }),
6410
6411 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6412 // - It is a tab
6413 // - It is adjacent to an edge (start or end)
6414 // - It is adjacent to a whitespace (left or right)
6415 ShowWhitespaceSetting::Boundary => {
6416 // 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
6417 // the above cases.
6418 // Note: We zip in the original `invisibles` to check for tab equality
6419 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6420 for (([start, end], paint), invisible) in
6421 invisible_iter.zip_eq(self.invisibles.iter())
6422 {
6423 let should_render = match (&last_seen, invisible) {
6424 (_, Invisible::Tab { .. }) => true,
6425 (Some((_, last_end, _)), _) => *last_end == start,
6426 _ => false,
6427 };
6428
6429 if should_render || start == 0 || end == self.len {
6430 paint(window, cx);
6431
6432 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6433 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6434 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6435 // Note that we need to make sure that the last one is actually adjacent
6436 if !should_render_last && last_end == start {
6437 paint_last(window, cx);
6438 }
6439 }
6440 }
6441
6442 // Manually render anything within a selection
6443 let invisible_point = DisplayPoint::new(row, start as u32);
6444 if selection_ranges.iter().any(|region| {
6445 region.start <= invisible_point && invisible_point < region.end
6446 }) {
6447 paint(window, cx);
6448 }
6449
6450 last_seen = Some((should_render, end, paint));
6451 }
6452 }
6453 }
6454 }
6455
6456 pub fn x_for_index(&self, index: usize) -> Pixels {
6457 let mut fragment_start_x = Pixels::ZERO;
6458 let mut fragment_start_index = 0;
6459
6460 for fragment in &self.fragments {
6461 match fragment {
6462 LineFragment::Text(shaped_line) => {
6463 let fragment_end_index = fragment_start_index + shaped_line.len;
6464 if index < fragment_end_index {
6465 return fragment_start_x
6466 + shaped_line.x_for_index(index - fragment_start_index);
6467 }
6468 fragment_start_x += shaped_line.width;
6469 fragment_start_index = fragment_end_index;
6470 }
6471 LineFragment::Element { len, size, .. } => {
6472 let fragment_end_index = fragment_start_index + len;
6473 if index < fragment_end_index {
6474 return fragment_start_x;
6475 }
6476 fragment_start_x += size.width;
6477 fragment_start_index = fragment_end_index;
6478 }
6479 }
6480 }
6481
6482 fragment_start_x
6483 }
6484
6485 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6486 let mut fragment_start_x = Pixels::ZERO;
6487 let mut fragment_start_index = 0;
6488
6489 for fragment in &self.fragments {
6490 match fragment {
6491 LineFragment::Text(shaped_line) => {
6492 let fragment_end_x = fragment_start_x + shaped_line.width;
6493 if x < fragment_end_x {
6494 return Some(
6495 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6496 );
6497 }
6498 fragment_start_x = fragment_end_x;
6499 fragment_start_index += shaped_line.len;
6500 }
6501 LineFragment::Element { len, size, .. } => {
6502 let fragment_end_x = fragment_start_x + size.width;
6503 if x < fragment_end_x {
6504 return Some(fragment_start_index);
6505 }
6506 fragment_start_index += len;
6507 fragment_start_x = fragment_end_x;
6508 }
6509 }
6510 }
6511
6512 None
6513 }
6514
6515 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6516 let mut fragment_start_index = 0;
6517
6518 for fragment in &self.fragments {
6519 match fragment {
6520 LineFragment::Text(shaped_line) => {
6521 let fragment_end_index = fragment_start_index + shaped_line.len;
6522 if index < fragment_end_index {
6523 return shaped_line.font_id_for_index(index - fragment_start_index);
6524 }
6525 fragment_start_index = fragment_end_index;
6526 }
6527 LineFragment::Element { len, .. } => {
6528 let fragment_end_index = fragment_start_index + len;
6529 if index < fragment_end_index {
6530 return None;
6531 }
6532 fragment_start_index = fragment_end_index;
6533 }
6534 }
6535 }
6536
6537 None
6538 }
6539}
6540
6541#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6542enum Invisible {
6543 /// A tab character
6544 ///
6545 /// A tab character is internally represented by spaces (configured by the user's tab width)
6546 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6547 /// adjacency checks.
6548 Tab {
6549 line_start_offset: usize,
6550 line_end_offset: usize,
6551 },
6552 Whitespace {
6553 line_offset: usize,
6554 },
6555}
6556
6557impl EditorElement {
6558 /// Returns the rem size to use when rendering the [`EditorElement`].
6559 ///
6560 /// This allows UI elements to scale based on the `buffer_font_size`.
6561 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6562 match self.editor.read(cx).mode {
6563 EditorMode::Full => {
6564 let buffer_font_size = self.style.text.font_size;
6565 match buffer_font_size {
6566 AbsoluteLength::Pixels(pixels) => {
6567 let rem_size_scale = {
6568 // Our default UI font size is 14px on a 16px base scale.
6569 // This means the default UI font size is 0.875rems.
6570 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6571
6572 // We then determine the delta between a single rem and the default font
6573 // size scale.
6574 let default_font_size_delta = 1. - default_font_size_scale;
6575
6576 // Finally, we add this delta to 1rem to get the scale factor that
6577 // should be used to scale up the UI.
6578 1. + default_font_size_delta
6579 };
6580
6581 Some(pixels * rem_size_scale)
6582 }
6583 AbsoluteLength::Rems(rems) => {
6584 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6585 }
6586 }
6587 }
6588 // We currently use single-line and auto-height editors in UI contexts,
6589 // so we don't want to scale everything with the buffer font size, as it
6590 // ends up looking off.
6591 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6592 }
6593 }
6594}
6595
6596impl Element for EditorElement {
6597 type RequestLayoutState = ();
6598 type PrepaintState = EditorLayout;
6599
6600 fn id(&self) -> Option<ElementId> {
6601 None
6602 }
6603
6604 fn request_layout(
6605 &mut self,
6606 _: Option<&GlobalElementId>,
6607 window: &mut Window,
6608 cx: &mut App,
6609 ) -> (gpui::LayoutId, ()) {
6610 let rem_size = self.rem_size(cx);
6611 window.with_rem_size(rem_size, |window| {
6612 self.editor.update(cx, |editor, cx| {
6613 editor.set_style(self.style.clone(), window, cx);
6614
6615 let layout_id = match editor.mode {
6616 EditorMode::SingleLine { auto_width } => {
6617 let rem_size = window.rem_size();
6618
6619 let height = self.style.text.line_height_in_pixels(rem_size);
6620 if auto_width {
6621 let editor_handle = cx.entity().clone();
6622 let style = self.style.clone();
6623 window.request_measured_layout(
6624 Style::default(),
6625 move |_, _, window, cx| {
6626 let editor_snapshot = editor_handle
6627 .update(cx, |editor, cx| editor.snapshot(window, cx));
6628 let line = Self::layout_lines(
6629 DisplayRow(0)..DisplayRow(1),
6630 &editor_snapshot,
6631 &style,
6632 px(f32::MAX),
6633 |_| false, // Single lines never soft wrap
6634 window,
6635 cx,
6636 )
6637 .pop()
6638 .unwrap();
6639
6640 let font_id =
6641 window.text_system().resolve_font(&style.text.font());
6642 let font_size =
6643 style.text.font_size.to_pixels(window.rem_size());
6644 let em_width =
6645 window.text_system().em_width(font_id, font_size).unwrap();
6646
6647 size(line.width + em_width, height)
6648 },
6649 )
6650 } else {
6651 let mut style = Style::default();
6652 style.size.height = height.into();
6653 style.size.width = relative(1.).into();
6654 window.request_layout(style, None, cx)
6655 }
6656 }
6657 EditorMode::AutoHeight { max_lines } => {
6658 let editor_handle = cx.entity().clone();
6659 let max_line_number_width =
6660 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6661 window.request_measured_layout(
6662 Style::default(),
6663 move |known_dimensions, available_space, window, cx| {
6664 editor_handle
6665 .update(cx, |editor, cx| {
6666 compute_auto_height_layout(
6667 editor,
6668 max_lines,
6669 max_line_number_width,
6670 known_dimensions,
6671 available_space.width,
6672 window,
6673 cx,
6674 )
6675 })
6676 .unwrap_or_default()
6677 },
6678 )
6679 }
6680 EditorMode::Full => {
6681 let mut style = Style::default();
6682 style.size.width = relative(1.).into();
6683 style.size.height = relative(1.).into();
6684 window.request_layout(style, None, cx)
6685 }
6686 };
6687
6688 (layout_id, ())
6689 })
6690 })
6691 }
6692
6693 fn prepaint(
6694 &mut self,
6695 _: Option<&GlobalElementId>,
6696 bounds: Bounds<Pixels>,
6697 _: &mut Self::RequestLayoutState,
6698 window: &mut Window,
6699 cx: &mut App,
6700 ) -> Self::PrepaintState {
6701 let text_style = TextStyleRefinement {
6702 font_size: Some(self.style.text.font_size),
6703 line_height: Some(self.style.text.line_height),
6704 ..Default::default()
6705 };
6706 let focus_handle = self.editor.focus_handle(cx);
6707 window.set_view_id(self.editor.entity_id());
6708 window.set_focus_handle(&focus_handle, cx);
6709
6710 let rem_size = self.rem_size(cx);
6711 window.with_rem_size(rem_size, |window| {
6712 window.with_text_style(Some(text_style), |window| {
6713 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6714 let mut snapshot = self
6715 .editor
6716 .update(cx, |editor, cx| editor.snapshot(window, cx));
6717 let style = self.style.clone();
6718
6719 let font_id = window.text_system().resolve_font(&style.text.font());
6720 let font_size = style.text.font_size.to_pixels(window.rem_size());
6721 let line_height = style.text.line_height_in_pixels(window.rem_size());
6722 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6723 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6724
6725 let letter_size = size(em_width, line_height);
6726
6727 let gutter_dimensions = snapshot
6728 .gutter_dimensions(
6729 font_id,
6730 font_size,
6731 self.max_line_number_width(&snapshot, window, cx),
6732 cx,
6733 )
6734 .unwrap_or_default();
6735 let text_width = bounds.size.width - gutter_dimensions.width;
6736
6737 let editor_width =
6738 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6739
6740 snapshot = self.editor.update(cx, |editor, cx| {
6741 editor.last_bounds = Some(bounds);
6742 editor.gutter_dimensions = gutter_dimensions;
6743 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6744
6745 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6746 snapshot
6747 } else {
6748 let wrap_width = match editor.soft_wrap_mode(cx) {
6749 SoftWrap::GitDiff => None,
6750 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6751 SoftWrap::EditorWidth => Some(editor_width),
6752 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6753 SoftWrap::Bounded(column) => {
6754 Some(editor_width.min(column as f32 * em_advance))
6755 }
6756 };
6757
6758 if editor.set_wrap_width(wrap_width, cx) {
6759 editor.snapshot(window, cx)
6760 } else {
6761 snapshot
6762 }
6763 }
6764 });
6765
6766 let wrap_guides = self
6767 .editor
6768 .read(cx)
6769 .wrap_guides(cx)
6770 .iter()
6771 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6772 .collect::<SmallVec<[_; 2]>>();
6773
6774 let hitbox = window.insert_hitbox(bounds, false);
6775 let gutter_hitbox =
6776 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6777 let text_hitbox = window.insert_hitbox(
6778 Bounds {
6779 origin: gutter_hitbox.top_right(),
6780 size: size(text_width, bounds.size.height),
6781 },
6782 false,
6783 );
6784 // Offset the content_bounds from the text_bounds by the gutter margin (which
6785 // is roughly half a character wide) to make hit testing work more like how we want.
6786 let content_origin =
6787 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6788
6789 let scrollbar_bounds =
6790 Bounds::from_corners(content_origin, bounds.bottom_right());
6791
6792 let height_in_lines = scrollbar_bounds.size.height / line_height;
6793
6794 // NOTE: The max row number in the current file, minus one
6795 let max_row = snapshot.max_point().row().as_f32();
6796
6797 // NOTE: The max scroll position for the top of the window
6798 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6799 (max_row - height_in_lines + 1.).max(0.)
6800 } else {
6801 let settings = EditorSettings::get_global(cx);
6802 match settings.scroll_beyond_last_line {
6803 ScrollBeyondLastLine::OnePage => max_row,
6804 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6805 ScrollBeyondLastLine::VerticalScrollMargin => {
6806 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6807 .max(0.)
6808 }
6809 }
6810 };
6811
6812 // TODO: Autoscrolling for both axes
6813 let mut autoscroll_request = None;
6814 let mut autoscroll_containing_element = false;
6815 let mut autoscroll_horizontally = false;
6816 self.editor.update(cx, |editor, cx| {
6817 autoscroll_request = editor.autoscroll_request();
6818 autoscroll_containing_element =
6819 autoscroll_request.is_some() || editor.has_pending_selection();
6820 // TODO: Is this horizontal or vertical?!
6821 autoscroll_horizontally = editor.autoscroll_vertically(
6822 bounds,
6823 line_height,
6824 max_scroll_top,
6825 window,
6826 cx,
6827 );
6828 snapshot = editor.snapshot(window, cx);
6829 });
6830
6831 let mut scroll_position = snapshot.scroll_position();
6832 // The scroll position is a fractional point, the whole number of which represents
6833 // the top of the window in terms of display rows.
6834 let start_row = DisplayRow(scroll_position.y as u32);
6835 let max_row = snapshot.max_point().row();
6836 let end_row = cmp::min(
6837 (scroll_position.y + height_in_lines).ceil() as u32,
6838 max_row.next_row().0,
6839 );
6840 let end_row = DisplayRow(end_row);
6841
6842 let row_infos = snapshot
6843 .row_infos(start_row)
6844 .take((start_row..end_row).len())
6845 .collect::<Vec<RowInfo>>();
6846 let is_row_soft_wrapped = |row: usize| {
6847 row_infos
6848 .get(row)
6849 .map_or(true, |info| info.buffer_row.is_none())
6850 };
6851
6852 let start_anchor = if start_row == Default::default() {
6853 Anchor::min()
6854 } else {
6855 snapshot.buffer_snapshot.anchor_before(
6856 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6857 )
6858 };
6859 let end_anchor = if end_row > max_row {
6860 Anchor::max()
6861 } else {
6862 snapshot.buffer_snapshot.anchor_before(
6863 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6864 )
6865 };
6866
6867 let (mut highlighted_rows, distinguish_unstaged_hunks) =
6868 self.editor.update(cx, |editor, cx| {
6869 (
6870 editor.highlighted_display_rows(window, cx),
6871 editor.distinguish_unstaged_diff_hunks,
6872 )
6873 });
6874
6875 for (ix, row_info) in row_infos.iter().enumerate() {
6876 let background = match row_info.diff_status {
6877 Some(DiffHunkStatus::Added(secondary_status)) => {
6878 let color = style.status.created_background;
6879 match secondary_status {
6880 DiffHunkSecondaryStatus::HasSecondaryHunk
6881 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6882 if distinguish_unstaged_hunks =>
6883 {
6884 pattern_slash(color, line_height.0 / 4.0)
6885 }
6886 _ => color.into(),
6887 }
6888 }
6889 Some(DiffHunkStatus::Removed(secondary_status)) => {
6890 let color = style.status.deleted_background;
6891 match secondary_status {
6892 DiffHunkSecondaryStatus::HasSecondaryHunk
6893 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6894 if distinguish_unstaged_hunks =>
6895 {
6896 pattern_slash(color, line_height.0 / 4.0)
6897 }
6898 _ => color.into(),
6899 }
6900 }
6901 _ => continue,
6902 };
6903
6904 highlighted_rows
6905 .entry(start_row + DisplayRow(ix as u32))
6906 .or_insert(background);
6907 }
6908
6909 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6910 start_anchor..end_anchor,
6911 &snapshot.display_snapshot,
6912 cx.theme().colors(),
6913 );
6914 let highlighted_gutter_ranges =
6915 self.editor.read(cx).gutter_highlights_in_range(
6916 start_anchor..end_anchor,
6917 &snapshot.display_snapshot,
6918 cx,
6919 );
6920
6921 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6922 start_anchor..end_anchor,
6923 &snapshot.display_snapshot,
6924 cx,
6925 );
6926
6927 let (local_selections, selected_buffer_ids): (
6928 Vec<Selection<Point>>,
6929 Vec<BufferId>,
6930 ) = self.editor.update(cx, |editor, cx| {
6931 let all_selections = editor.selections.all::<Point>(cx);
6932 let selected_buffer_ids = if editor.is_singleton(cx) {
6933 Vec::new()
6934 } else {
6935 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6936
6937 for selection in all_selections {
6938 for buffer_id in snapshot
6939 .buffer_snapshot
6940 .buffer_ids_for_range(selection.range())
6941 {
6942 if selected_buffer_ids.last() != Some(&buffer_id) {
6943 selected_buffer_ids.push(buffer_id);
6944 }
6945 }
6946 }
6947
6948 selected_buffer_ids
6949 };
6950
6951 let mut selections = editor
6952 .selections
6953 .disjoint_in_range(start_anchor..end_anchor, cx);
6954 selections.extend(editor.selections.pending(cx));
6955
6956 (selections, selected_buffer_ids)
6957 });
6958
6959 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6960 start_anchor,
6961 end_anchor,
6962 &local_selections,
6963 &snapshot,
6964 start_row,
6965 end_row,
6966 window,
6967 cx,
6968 );
6969
6970 let line_numbers = self.layout_line_numbers(
6971 Some(&gutter_hitbox),
6972 gutter_dimensions,
6973 line_height,
6974 scroll_position,
6975 start_row..end_row,
6976 &row_infos,
6977 newest_selection_head,
6978 &snapshot,
6979 window,
6980 cx,
6981 );
6982
6983 let mut crease_toggles =
6984 window.with_element_namespace("crease_toggles", |window| {
6985 self.layout_crease_toggles(
6986 start_row..end_row,
6987 &row_infos,
6988 &active_rows,
6989 &snapshot,
6990 window,
6991 cx,
6992 )
6993 });
6994 let crease_trailers =
6995 window.with_element_namespace("crease_trailers", |window| {
6996 self.layout_crease_trailers(
6997 row_infos.iter().copied(),
6998 &snapshot,
6999 window,
7000 cx,
7001 )
7002 });
7003
7004 let display_hunks = self.layout_gutter_diff_hunks(
7005 line_height,
7006 &gutter_hitbox,
7007 start_row..end_row,
7008 &snapshot,
7009 window,
7010 cx,
7011 );
7012
7013 let mut line_layouts = Self::layout_lines(
7014 start_row..end_row,
7015 &snapshot,
7016 &self.style,
7017 editor_width,
7018 is_row_soft_wrapped,
7019 window,
7020 cx,
7021 );
7022
7023 let longest_line_blame_width = self
7024 .editor
7025 .update(cx, |editor, cx| {
7026 if !editor.show_git_blame_inline {
7027 return None;
7028 }
7029 let blame = editor.blame.as_ref()?;
7030 let blame_entry = blame
7031 .update(cx, |blame, cx| {
7032 let row_infos =
7033 snapshot.row_infos(snapshot.longest_row()).next()?;
7034 blame.blame_for_rows(&[row_infos], cx).next()
7035 })
7036 .flatten()?;
7037 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7038 let mut element = render_inline_blame_entry(
7039 blame,
7040 blame_entry,
7041 &style,
7042 workspace,
7043 cx,
7044 );
7045 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7046 Some(
7047 element
7048 .layout_as_root(AvailableSpace::min_size(), window, cx)
7049 .width
7050 + inline_blame_padding,
7051 )
7052 })
7053 .unwrap_or(Pixels::ZERO);
7054
7055 let longest_line_width = layout_line(
7056 snapshot.longest_row(),
7057 &snapshot,
7058 &style,
7059 editor_width,
7060 is_row_soft_wrapped,
7061 window,
7062 cx,
7063 )
7064 .width;
7065
7066 let scrollbar_range_data = ScrollbarRangeData::new(
7067 scrollbar_bounds,
7068 letter_size,
7069 &snapshot,
7070 longest_line_width,
7071 longest_line_blame_width,
7072 &style,
7073 editor_width,
7074 cx,
7075 );
7076
7077 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7078 let mut scroll_width = scroll_range_bounds.size.width;
7079
7080 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7081 snapshot.sticky_header_excerpt(start_row)
7082 } else {
7083 None
7084 };
7085 let sticky_header_excerpt_id =
7086 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7087
7088 let blocks = window.with_element_namespace("blocks", |window| {
7089 self.render_blocks(
7090 start_row..end_row,
7091 &snapshot,
7092 &hitbox,
7093 &text_hitbox,
7094 editor_width,
7095 &mut scroll_width,
7096 &gutter_dimensions,
7097 em_width,
7098 gutter_dimensions.full_width(),
7099 line_height,
7100 &line_layouts,
7101 &local_selections,
7102 &selected_buffer_ids,
7103 is_row_soft_wrapped,
7104 sticky_header_excerpt_id,
7105 window,
7106 cx,
7107 )
7108 });
7109 let mut blocks = match blocks {
7110 Ok(blocks) => blocks,
7111 Err(resized_blocks) => {
7112 self.editor.update(cx, |editor, cx| {
7113 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7114 });
7115 return self.prepaint(None, bounds, &mut (), window, cx);
7116 }
7117 };
7118
7119 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7120 window.with_element_namespace("blocks", |window| {
7121 self.layout_sticky_buffer_header(
7122 sticky_header_excerpt,
7123 scroll_position.y,
7124 line_height,
7125 &snapshot,
7126 &hitbox,
7127 &selected_buffer_ids,
7128 window,
7129 cx,
7130 )
7131 })
7132 });
7133
7134 let start_buffer_row =
7135 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7136 let end_buffer_row =
7137 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7138
7139 let scroll_max = point(
7140 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7141 max_row.as_f32(),
7142 );
7143
7144 self.editor.update(cx, |editor, cx| {
7145 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7146
7147 let autoscrolled = if autoscroll_horizontally {
7148 editor.autoscroll_horizontally(
7149 start_row,
7150 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7151 scroll_width,
7152 em_width,
7153 &line_layouts,
7154 cx,
7155 )
7156 } else {
7157 false
7158 };
7159
7160 if clamped || autoscrolled {
7161 snapshot = editor.snapshot(window, cx);
7162 scroll_position = snapshot.scroll_position();
7163 }
7164 });
7165
7166 let scroll_pixel_position = point(
7167 scroll_position.x * em_width,
7168 scroll_position.y * line_height,
7169 );
7170
7171 let indent_guides = self.layout_indent_guides(
7172 content_origin,
7173 text_hitbox.origin,
7174 start_buffer_row..end_buffer_row,
7175 scroll_pixel_position,
7176 line_height,
7177 &snapshot,
7178 window,
7179 cx,
7180 );
7181
7182 let crease_trailers =
7183 window.with_element_namespace("crease_trailers", |window| {
7184 self.prepaint_crease_trailers(
7185 crease_trailers,
7186 &line_layouts,
7187 line_height,
7188 content_origin,
7189 scroll_pixel_position,
7190 em_width,
7191 window,
7192 cx,
7193 )
7194 });
7195
7196 let mut inline_blame = None;
7197 if let Some(newest_selection_head) = newest_selection_head {
7198 let display_row = newest_selection_head.row();
7199 if (start_row..end_row).contains(&display_row) {
7200 let line_ix = display_row.minus(start_row) as usize;
7201 let row_info = &row_infos[line_ix];
7202 let line_layout = &line_layouts[line_ix];
7203 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7204 inline_blame = self.layout_inline_blame(
7205 display_row,
7206 row_info,
7207 line_layout,
7208 crease_trailer_layout,
7209 em_width,
7210 content_origin,
7211 scroll_pixel_position,
7212 line_height,
7213 window,
7214 cx,
7215 );
7216 }
7217 }
7218
7219 let blamed_display_rows = self.layout_blame_entries(
7220 &row_infos,
7221 em_width,
7222 scroll_position,
7223 line_height,
7224 &gutter_hitbox,
7225 gutter_dimensions.git_blame_entries_width,
7226 window,
7227 cx,
7228 );
7229
7230 let scroll_max = point(
7231 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7232 max_scroll_top,
7233 );
7234
7235 self.editor.update(cx, |editor, cx| {
7236 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7237
7238 let autoscrolled = if autoscroll_horizontally {
7239 editor.autoscroll_horizontally(
7240 start_row,
7241 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7242 scroll_width,
7243 em_width,
7244 &line_layouts,
7245 cx,
7246 )
7247 } else {
7248 false
7249 };
7250
7251 if clamped || autoscrolled {
7252 snapshot = editor.snapshot(window, cx);
7253 scroll_position = snapshot.scroll_position();
7254 }
7255 });
7256
7257 let line_elements = self.prepaint_lines(
7258 start_row,
7259 &mut line_layouts,
7260 line_height,
7261 scroll_pixel_position,
7262 content_origin,
7263 window,
7264 cx,
7265 );
7266
7267 let mut block_start_rows = HashSet::default();
7268
7269 window.with_element_namespace("blocks", |window| {
7270 self.layout_blocks(
7271 &mut blocks,
7272 &mut block_start_rows,
7273 &hitbox,
7274 line_height,
7275 scroll_pixel_position,
7276 window,
7277 cx,
7278 );
7279 });
7280
7281 let cursors = self.collect_cursors(&snapshot, cx);
7282 let visible_row_range = start_row..end_row;
7283 let non_visible_cursors = cursors
7284 .iter()
7285 .any(|c| !visible_row_range.contains(&c.0.row()));
7286
7287 let visible_cursors = self.layout_visible_cursors(
7288 &snapshot,
7289 &selections,
7290 &block_start_rows,
7291 start_row..end_row,
7292 &line_layouts,
7293 &text_hitbox,
7294 content_origin,
7295 scroll_position,
7296 scroll_pixel_position,
7297 line_height,
7298 em_width,
7299 em_advance,
7300 autoscroll_containing_element,
7301 window,
7302 cx,
7303 );
7304
7305 let scrollbars_layout = self.layout_scrollbars(
7306 &snapshot,
7307 scrollbar_range_data,
7308 scroll_position,
7309 non_visible_cursors,
7310 window,
7311 cx,
7312 );
7313
7314 let gutter_settings = EditorSettings::get_global(cx).gutter;
7315
7316 let rows_with_hunk_bounds = display_hunks
7317 .iter()
7318 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7319 .fold(
7320 HashMap::default(),
7321 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7322 match hunk {
7323 DisplayDiffHunk::Folded { display_row } => {
7324 rows_with_hunk_bounds.insert(*display_row, bounds);
7325 }
7326 DisplayDiffHunk::Unfolded {
7327 display_row_range, ..
7328 } => {
7329 for display_row in display_row_range.iter_rows() {
7330 rows_with_hunk_bounds.insert(display_row, bounds);
7331 }
7332 }
7333 }
7334 rows_with_hunk_bounds
7335 },
7336 );
7337 let mut code_actions_indicator = None;
7338 if let Some(newest_selection_head) = newest_selection_head {
7339 let newest_selection_point =
7340 newest_selection_head.to_point(&snapshot.display_snapshot);
7341
7342 if (start_row..end_row).contains(&newest_selection_head.row()) {
7343 self.layout_cursor_popovers(
7344 line_height,
7345 &text_hitbox,
7346 content_origin,
7347 start_row,
7348 scroll_pixel_position,
7349 &line_layouts,
7350 newest_selection_head,
7351 newest_selection_point,
7352 &style,
7353 window,
7354 cx,
7355 );
7356
7357 let show_code_actions = snapshot
7358 .show_code_actions
7359 .unwrap_or(gutter_settings.code_actions);
7360 if show_code_actions {
7361 let newest_selection_point =
7362 newest_selection_head.to_point(&snapshot.display_snapshot);
7363 if !snapshot
7364 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7365 {
7366 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7367 MultiBufferRow(newest_selection_point.row),
7368 );
7369 if let Some((buffer, range)) = buffer {
7370 let buffer_id = buffer.remote_id();
7371 let row = range.start.row;
7372 let has_test_indicator = self
7373 .editor
7374 .read(cx)
7375 .tasks
7376 .contains_key(&(buffer_id, row));
7377
7378 if !has_test_indicator {
7379 code_actions_indicator = self
7380 .layout_code_actions_indicator(
7381 line_height,
7382 newest_selection_head,
7383 scroll_pixel_position,
7384 &gutter_dimensions,
7385 &gutter_hitbox,
7386 &rows_with_hunk_bounds,
7387 window,
7388 cx,
7389 );
7390 }
7391 }
7392 }
7393 }
7394 }
7395 }
7396
7397 self.layout_gutter_menu(
7398 line_height,
7399 &text_hitbox,
7400 content_origin,
7401 scroll_pixel_position,
7402 gutter_dimensions.width - gutter_dimensions.left_padding,
7403 window,
7404 cx,
7405 );
7406
7407 let test_indicators = if gutter_settings.runnables {
7408 self.layout_run_indicators(
7409 line_height,
7410 start_row..end_row,
7411 scroll_pixel_position,
7412 &gutter_dimensions,
7413 &gutter_hitbox,
7414 &rows_with_hunk_bounds,
7415 &snapshot,
7416 window,
7417 cx,
7418 )
7419 } else {
7420 Vec::new()
7421 };
7422
7423 self.layout_signature_help(
7424 &hitbox,
7425 content_origin,
7426 scroll_pixel_position,
7427 newest_selection_head,
7428 start_row,
7429 &line_layouts,
7430 line_height,
7431 em_width,
7432 window,
7433 cx,
7434 );
7435
7436 if !cx.has_active_drag() {
7437 self.layout_hover_popovers(
7438 &snapshot,
7439 &hitbox,
7440 &text_hitbox,
7441 start_row..end_row,
7442 content_origin,
7443 scroll_pixel_position,
7444 &line_layouts,
7445 line_height,
7446 em_width,
7447 window,
7448 cx,
7449 );
7450 }
7451
7452 let inline_completion_popover = self.layout_edit_prediction_popover(
7453 &text_hitbox.bounds,
7454 content_origin,
7455 &snapshot,
7456 start_row..end_row,
7457 scroll_position.y,
7458 scroll_position.y + height_in_lines,
7459 &line_layouts,
7460 line_height,
7461 scroll_pixel_position,
7462 newest_selection_head,
7463 editor_width,
7464 &style,
7465 window,
7466 cx,
7467 );
7468
7469 let mouse_context_menu = self.layout_mouse_context_menu(
7470 &snapshot,
7471 start_row..end_row,
7472 content_origin,
7473 window,
7474 cx,
7475 );
7476
7477 window.with_element_namespace("crease_toggles", |window| {
7478 self.prepaint_crease_toggles(
7479 &mut crease_toggles,
7480 line_height,
7481 &gutter_dimensions,
7482 gutter_settings,
7483 scroll_pixel_position,
7484 &gutter_hitbox,
7485 window,
7486 cx,
7487 )
7488 });
7489
7490 let invisible_symbol_font_size = font_size / 2.;
7491 let tab_invisible = window
7492 .text_system()
7493 .shape_line(
7494 "→".into(),
7495 invisible_symbol_font_size,
7496 &[TextRun {
7497 len: "→".len(),
7498 font: self.style.text.font(),
7499 color: cx.theme().colors().editor_invisible,
7500 background_color: None,
7501 underline: None,
7502 strikethrough: None,
7503 }],
7504 )
7505 .unwrap();
7506 let space_invisible = window
7507 .text_system()
7508 .shape_line(
7509 "•".into(),
7510 invisible_symbol_font_size,
7511 &[TextRun {
7512 len: "•".len(),
7513 font: self.style.text.font(),
7514 color: cx.theme().colors().editor_invisible,
7515 background_color: None,
7516 underline: None,
7517 strikethrough: None,
7518 }],
7519 )
7520 .unwrap();
7521
7522 let mode = snapshot.mode;
7523
7524 let position_map = Rc::new(PositionMap {
7525 size: bounds.size,
7526 visible_row_range,
7527 scroll_pixel_position,
7528 scroll_max,
7529 line_layouts,
7530 line_height,
7531 em_width,
7532 em_advance,
7533 snapshot,
7534 gutter_hitbox: gutter_hitbox.clone(),
7535 text_hitbox: text_hitbox.clone(),
7536 });
7537
7538 self.editor.update(cx, |editor, _| {
7539 editor.last_position_map = Some(position_map.clone())
7540 });
7541
7542 let hunk_controls = self.layout_diff_hunk_controls(
7543 start_row..end_row,
7544 &row_infos,
7545 &text_hitbox,
7546 &position_map,
7547 newest_selection_head,
7548 line_height,
7549 scroll_pixel_position,
7550 &display_hunks,
7551 self.editor.clone(),
7552 window,
7553 cx,
7554 );
7555
7556 EditorLayout {
7557 mode,
7558 position_map,
7559 visible_display_row_range: start_row..end_row,
7560 wrap_guides,
7561 indent_guides,
7562 hitbox,
7563 gutter_hitbox,
7564 display_hunks,
7565 content_origin,
7566 scrollbars_layout,
7567 active_rows,
7568 highlighted_rows,
7569 highlighted_ranges,
7570 highlighted_gutter_ranges,
7571 redacted_ranges,
7572 line_elements,
7573 line_numbers,
7574 blamed_display_rows,
7575 inline_blame,
7576 blocks,
7577 cursors,
7578 visible_cursors,
7579 selections,
7580 inline_completion_popover,
7581 diff_hunk_controls: hunk_controls,
7582 mouse_context_menu,
7583 test_indicators,
7584 code_actions_indicator,
7585 crease_toggles,
7586 crease_trailers,
7587 tab_invisible,
7588 space_invisible,
7589 sticky_buffer_header,
7590 }
7591 })
7592 })
7593 })
7594 }
7595
7596 fn paint(
7597 &mut self,
7598 _: Option<&GlobalElementId>,
7599 bounds: Bounds<gpui::Pixels>,
7600 _: &mut Self::RequestLayoutState,
7601 layout: &mut Self::PrepaintState,
7602 window: &mut Window,
7603 cx: &mut App,
7604 ) {
7605 let focus_handle = self.editor.focus_handle(cx);
7606 let key_context = self
7607 .editor
7608 .update(cx, |editor, cx| editor.key_context(window, cx));
7609
7610 window.set_key_context(key_context);
7611 window.handle_input(
7612 &focus_handle,
7613 ElementInputHandler::new(bounds, self.editor.clone()),
7614 cx,
7615 );
7616 self.register_actions(window, cx);
7617 self.register_key_listeners(window, cx, layout);
7618
7619 let text_style = TextStyleRefinement {
7620 font_size: Some(self.style.text.font_size),
7621 line_height: Some(self.style.text.line_height),
7622 ..Default::default()
7623 };
7624 let rem_size = self.rem_size(cx);
7625 window.with_rem_size(rem_size, |window| {
7626 window.with_text_style(Some(text_style), |window| {
7627 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7628 self.paint_mouse_listeners(layout, window, cx);
7629 self.paint_background(layout, window, cx);
7630 self.paint_indent_guides(layout, window, cx);
7631
7632 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7633 self.paint_blamed_display_rows(layout, window, cx);
7634 self.paint_line_numbers(layout, window, cx);
7635 }
7636
7637 self.paint_text(layout, window, cx);
7638
7639 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7640 self.paint_gutter_highlights(layout, window, cx);
7641 self.paint_gutter_indicators(layout, window, cx);
7642 }
7643
7644 if !layout.blocks.is_empty() {
7645 window.with_element_namespace("blocks", |window| {
7646 self.paint_blocks(layout, window, cx);
7647 });
7648 }
7649
7650 window.with_element_namespace("blocks", |window| {
7651 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7652 sticky_header.paint(window, cx)
7653 }
7654 });
7655
7656 self.paint_scrollbars(layout, window, cx);
7657 self.paint_inline_completion_popover(layout, window, cx);
7658 self.paint_mouse_context_menu(layout, window, cx);
7659 });
7660 })
7661 })
7662 }
7663}
7664
7665pub(super) fn gutter_bounds(
7666 editor_bounds: Bounds<Pixels>,
7667 gutter_dimensions: GutterDimensions,
7668) -> Bounds<Pixels> {
7669 Bounds {
7670 origin: editor_bounds.origin,
7671 size: size(gutter_dimensions.width, editor_bounds.size.height),
7672 }
7673}
7674
7675struct ScrollbarRangeData {
7676 scrollbar_bounds: Bounds<Pixels>,
7677 scroll_range: Bounds<Pixels>,
7678 letter_size: Size<Pixels>,
7679}
7680
7681impl ScrollbarRangeData {
7682 pub fn new(
7683 scrollbar_bounds: Bounds<Pixels>,
7684 letter_size: Size<Pixels>,
7685 snapshot: &EditorSnapshot,
7686 longest_line_width: Pixels,
7687 longest_line_blame_width: Pixels,
7688 style: &EditorStyle,
7689 editor_width: Pixels,
7690 cx: &mut App,
7691 ) -> ScrollbarRangeData {
7692 // TODO: Simplify this function down, it requires a lot of parameters
7693 let max_row = snapshot.max_point().row();
7694 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7695
7696 let settings = EditorSettings::get_global(cx);
7697 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7698 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7699 ScrollBeyondLastLine::Off => px(1.),
7700 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7701 };
7702
7703 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7704 letter_size.width + style.scrollbar_width
7705 } else {
7706 px(0.0)
7707 };
7708
7709 let overscroll = size(
7710 right_margin + longest_line_blame_width,
7711 letter_size.height * scroll_beyond_last_line,
7712 );
7713
7714 let scroll_range = Bounds {
7715 origin: scrollbar_bounds.origin,
7716 size: text_bounds_size + overscroll,
7717 };
7718
7719 ScrollbarRangeData {
7720 scrollbar_bounds,
7721 scroll_range,
7722 letter_size,
7723 }
7724 }
7725}
7726
7727impl IntoElement for EditorElement {
7728 type Element = Self;
7729
7730 fn into_element(self) -> Self::Element {
7731 self
7732 }
7733}
7734
7735pub struct EditorLayout {
7736 position_map: Rc<PositionMap>,
7737 hitbox: Hitbox,
7738 gutter_hitbox: Hitbox,
7739 content_origin: gpui::Point<Pixels>,
7740 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7741 mode: EditorMode,
7742 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7743 indent_guides: Option<Vec<IndentGuideLayout>>,
7744 visible_display_row_range: Range<DisplayRow>,
7745 active_rows: BTreeMap<DisplayRow, bool>,
7746 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7747 line_elements: SmallVec<[AnyElement; 1]>,
7748 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7749 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7750 blamed_display_rows: Option<Vec<AnyElement>>,
7751 inline_blame: Option<AnyElement>,
7752 blocks: Vec<BlockLayout>,
7753 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7754 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7755 redacted_ranges: Vec<Range<DisplayPoint>>,
7756 cursors: Vec<(DisplayPoint, Hsla)>,
7757 visible_cursors: Vec<CursorLayout>,
7758 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7759 code_actions_indicator: Option<AnyElement>,
7760 test_indicators: Vec<AnyElement>,
7761 crease_toggles: Vec<Option<AnyElement>>,
7762 diff_hunk_controls: Vec<AnyElement>,
7763 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7764 inline_completion_popover: Option<AnyElement>,
7765 mouse_context_menu: Option<AnyElement>,
7766 tab_invisible: ShapedLine,
7767 space_invisible: ShapedLine,
7768 sticky_buffer_header: Option<AnyElement>,
7769}
7770
7771impl EditorLayout {
7772 fn line_end_overshoot(&self) -> Pixels {
7773 0.15 * self.position_map.line_height
7774 }
7775}
7776
7777struct LineNumberLayout {
7778 shaped_line: ShapedLine,
7779 hitbox: Option<Hitbox>,
7780 display_row: DisplayRow,
7781}
7782
7783struct ColoredRange<T> {
7784 start: T,
7785 end: T,
7786 color: Hsla,
7787}
7788
7789#[derive(Clone)]
7790struct ScrollbarLayout {
7791 hitbox: Hitbox,
7792 visible_range: Range<f32>,
7793 visible: bool,
7794 text_unit_size: Pixels,
7795 thumb_size: Pixels,
7796 axis: Axis,
7797}
7798
7799impl ScrollbarLayout {
7800 const BORDER_WIDTH: Pixels = px(1.0);
7801 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7802 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7803 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7804
7805 fn thumb_bounds(&self) -> Bounds<Pixels> {
7806 match self.axis {
7807 Axis::Vertical => {
7808 let thumb_top = self.y_for_row(self.visible_range.start);
7809 let thumb_bottom = thumb_top + self.thumb_size;
7810 Bounds::from_corners(
7811 point(self.hitbox.left(), thumb_top),
7812 point(self.hitbox.right(), thumb_bottom),
7813 )
7814 }
7815 Axis::Horizontal => {
7816 let thumb_left =
7817 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7818 let thumb_right = thumb_left + self.thumb_size;
7819 Bounds::from_corners(
7820 point(thumb_left, self.hitbox.top()),
7821 point(thumb_right, self.hitbox.bottom()),
7822 )
7823 }
7824 }
7825 }
7826
7827 fn y_for_row(&self, row: f32) -> Pixels {
7828 self.hitbox.top() + row * self.text_unit_size
7829 }
7830
7831 fn marker_quads_for_ranges(
7832 &self,
7833 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7834 column: Option<usize>,
7835 ) -> Vec<PaintQuad> {
7836 struct MinMax {
7837 min: Pixels,
7838 max: Pixels,
7839 }
7840 let (x_range, height_limit) = if let Some(column) = column {
7841 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7842 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7843 let end = start + column_width;
7844 (
7845 Range { start, end },
7846 MinMax {
7847 min: Self::MIN_MARKER_HEIGHT,
7848 max: px(f32::MAX),
7849 },
7850 )
7851 } else {
7852 (
7853 Range {
7854 start: Self::BORDER_WIDTH,
7855 end: self.hitbox.size.width,
7856 },
7857 MinMax {
7858 min: Self::LINE_MARKER_HEIGHT,
7859 max: Self::LINE_MARKER_HEIGHT,
7860 },
7861 )
7862 };
7863
7864 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7865 let mut pixel_ranges = row_ranges
7866 .into_iter()
7867 .map(|range| {
7868 let start_y = row_to_y(range.start);
7869 let end_y = row_to_y(range.end)
7870 + self
7871 .text_unit_size
7872 .max(height_limit.min)
7873 .min(height_limit.max);
7874 ColoredRange {
7875 start: start_y,
7876 end: end_y,
7877 color: range.color,
7878 }
7879 })
7880 .peekable();
7881
7882 let mut quads = Vec::new();
7883 while let Some(mut pixel_range) = pixel_ranges.next() {
7884 while let Some(next_pixel_range) = pixel_ranges.peek() {
7885 if pixel_range.end >= next_pixel_range.start - px(1.0)
7886 && pixel_range.color == next_pixel_range.color
7887 {
7888 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7889 pixel_ranges.next();
7890 } else {
7891 break;
7892 }
7893 }
7894
7895 let bounds = Bounds::from_corners(
7896 point(x_range.start, pixel_range.start),
7897 point(x_range.end, pixel_range.end),
7898 );
7899 quads.push(quad(
7900 bounds,
7901 Corners::default(),
7902 pixel_range.color,
7903 Edges::default(),
7904 Hsla::transparent_black(),
7905 ));
7906 }
7907
7908 quads
7909 }
7910}
7911
7912struct CreaseTrailerLayout {
7913 element: AnyElement,
7914 bounds: Bounds<Pixels>,
7915}
7916
7917pub(crate) struct PositionMap {
7918 pub size: Size<Pixels>,
7919 pub line_height: Pixels,
7920 pub scroll_pixel_position: gpui::Point<Pixels>,
7921 pub scroll_max: gpui::Point<f32>,
7922 pub em_width: Pixels,
7923 pub em_advance: Pixels,
7924 pub visible_row_range: Range<DisplayRow>,
7925 pub line_layouts: Vec<LineWithInvisibles>,
7926 pub snapshot: EditorSnapshot,
7927 pub text_hitbox: Hitbox,
7928 pub gutter_hitbox: Hitbox,
7929}
7930
7931#[derive(Debug, Copy, Clone)]
7932pub struct PointForPosition {
7933 pub previous_valid: DisplayPoint,
7934 pub next_valid: DisplayPoint,
7935 pub exact_unclipped: DisplayPoint,
7936 pub column_overshoot_after_line_end: u32,
7937}
7938
7939impl PointForPosition {
7940 pub fn as_valid(&self) -> Option<DisplayPoint> {
7941 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7942 Some(self.previous_valid)
7943 } else {
7944 None
7945 }
7946 }
7947}
7948
7949impl PositionMap {
7950 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7951 let text_bounds = self.text_hitbox.bounds;
7952 let scroll_position = self.snapshot.scroll_position();
7953 let position = position - text_bounds.origin;
7954 let y = position.y.max(px(0.)).min(self.size.height);
7955 let x = position.x + (scroll_position.x * self.em_width);
7956 let row = ((y / self.line_height) + scroll_position.y) as u32;
7957
7958 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7959 .line_layouts
7960 .get(row as usize - scroll_position.y as usize)
7961 {
7962 if let Some(ix) = line.index_for_x(x) {
7963 (ix as u32, px(0.))
7964 } else {
7965 (line.len as u32, px(0.).max(x - line.width))
7966 }
7967 } else {
7968 (0, x)
7969 };
7970
7971 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7972 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7973 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7974
7975 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7976 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7977 PointForPosition {
7978 previous_valid,
7979 next_valid,
7980 exact_unclipped,
7981 column_overshoot_after_line_end,
7982 }
7983 }
7984}
7985
7986struct BlockLayout {
7987 id: BlockId,
7988 row: Option<DisplayRow>,
7989 element: AnyElement,
7990 available_space: Size<AvailableSpace>,
7991 style: BlockStyle,
7992}
7993
7994fn layout_line(
7995 row: DisplayRow,
7996 snapshot: &EditorSnapshot,
7997 style: &EditorStyle,
7998 text_width: Pixels,
7999 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8000 window: &mut Window,
8001 cx: &mut App,
8002) -> LineWithInvisibles {
8003 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8004 LineWithInvisibles::from_chunks(
8005 chunks,
8006 &style,
8007 MAX_LINE_LEN,
8008 1,
8009 snapshot.mode,
8010 text_width,
8011 is_row_soft_wrapped,
8012 window,
8013 cx,
8014 )
8015 .pop()
8016 .unwrap()
8017}
8018
8019#[derive(Debug)]
8020pub struct IndentGuideLayout {
8021 origin: gpui::Point<Pixels>,
8022 length: Pixels,
8023 single_indent_width: Pixels,
8024 depth: u32,
8025 active: bool,
8026 settings: IndentGuideSettings,
8027}
8028
8029pub struct CursorLayout {
8030 origin: gpui::Point<Pixels>,
8031 block_width: Pixels,
8032 line_height: Pixels,
8033 color: Hsla,
8034 shape: CursorShape,
8035 block_text: Option<ShapedLine>,
8036 cursor_name: Option<AnyElement>,
8037}
8038
8039#[derive(Debug)]
8040pub struct CursorName {
8041 string: SharedString,
8042 color: Hsla,
8043 is_top_row: bool,
8044}
8045
8046impl CursorLayout {
8047 pub fn new(
8048 origin: gpui::Point<Pixels>,
8049 block_width: Pixels,
8050 line_height: Pixels,
8051 color: Hsla,
8052 shape: CursorShape,
8053 block_text: Option<ShapedLine>,
8054 ) -> CursorLayout {
8055 CursorLayout {
8056 origin,
8057 block_width,
8058 line_height,
8059 color,
8060 shape,
8061 block_text,
8062 cursor_name: None,
8063 }
8064 }
8065
8066 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8067 Bounds {
8068 origin: self.origin + origin,
8069 size: size(self.block_width, self.line_height),
8070 }
8071 }
8072
8073 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8074 match self.shape {
8075 CursorShape::Bar => Bounds {
8076 origin: self.origin + origin,
8077 size: size(px(2.0), self.line_height),
8078 },
8079 CursorShape::Block | CursorShape::Hollow => Bounds {
8080 origin: self.origin + origin,
8081 size: size(self.block_width, self.line_height),
8082 },
8083 CursorShape::Underline => Bounds {
8084 origin: self.origin
8085 + origin
8086 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8087 size: size(self.block_width, px(2.0)),
8088 },
8089 }
8090 }
8091
8092 pub fn layout(
8093 &mut self,
8094 origin: gpui::Point<Pixels>,
8095 cursor_name: Option<CursorName>,
8096 window: &mut Window,
8097 cx: &mut App,
8098 ) {
8099 if let Some(cursor_name) = cursor_name {
8100 let bounds = self.bounds(origin);
8101 let text_size = self.line_height / 1.5;
8102
8103 let name_origin = if cursor_name.is_top_row {
8104 point(bounds.right() - px(1.), bounds.top())
8105 } else {
8106 match self.shape {
8107 CursorShape::Bar => point(
8108 bounds.right() - px(2.),
8109 bounds.top() - text_size / 2. - px(1.),
8110 ),
8111 _ => point(
8112 bounds.right() - px(1.),
8113 bounds.top() - text_size / 2. - px(1.),
8114 ),
8115 }
8116 };
8117 let mut name_element = div()
8118 .bg(self.color)
8119 .text_size(text_size)
8120 .px_0p5()
8121 .line_height(text_size + px(2.))
8122 .text_color(cursor_name.color)
8123 .child(cursor_name.string.clone())
8124 .into_any_element();
8125
8126 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8127
8128 self.cursor_name = Some(name_element);
8129 }
8130 }
8131
8132 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8133 let bounds = self.bounds(origin);
8134
8135 //Draw background or border quad
8136 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8137 outline(bounds, self.color)
8138 } else {
8139 fill(bounds, self.color)
8140 };
8141
8142 if let Some(name) = &mut self.cursor_name {
8143 name.paint(window, cx);
8144 }
8145
8146 window.paint_quad(cursor);
8147
8148 if let Some(block_text) = &self.block_text {
8149 block_text
8150 .paint(self.origin + origin, self.line_height, window, cx)
8151 .log_err();
8152 }
8153 }
8154
8155 pub fn shape(&self) -> CursorShape {
8156 self.shape
8157 }
8158}
8159
8160#[derive(Debug)]
8161pub struct HighlightedRange {
8162 pub start_y: Pixels,
8163 pub line_height: Pixels,
8164 pub lines: Vec<HighlightedRangeLine>,
8165 pub color: Hsla,
8166 pub corner_radius: Pixels,
8167}
8168
8169#[derive(Debug)]
8170pub struct HighlightedRangeLine {
8171 pub start_x: Pixels,
8172 pub end_x: Pixels,
8173}
8174
8175impl HighlightedRange {
8176 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8177 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8178 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8179 self.paint_lines(
8180 self.start_y + self.line_height,
8181 &self.lines[1..],
8182 bounds,
8183 window,
8184 );
8185 } else {
8186 self.paint_lines(self.start_y, &self.lines, bounds, window);
8187 }
8188 }
8189
8190 fn paint_lines(
8191 &self,
8192 start_y: Pixels,
8193 lines: &[HighlightedRangeLine],
8194 _bounds: Bounds<Pixels>,
8195 window: &mut Window,
8196 ) {
8197 if lines.is_empty() {
8198 return;
8199 }
8200
8201 let first_line = lines.first().unwrap();
8202 let last_line = lines.last().unwrap();
8203
8204 let first_top_left = point(first_line.start_x, start_y);
8205 let first_top_right = point(first_line.end_x, start_y);
8206
8207 let curve_height = point(Pixels::ZERO, self.corner_radius);
8208 let curve_width = |start_x: Pixels, end_x: Pixels| {
8209 let max = (end_x - start_x) / 2.;
8210 let width = if max < self.corner_radius {
8211 max
8212 } else {
8213 self.corner_radius
8214 };
8215
8216 point(width, Pixels::ZERO)
8217 };
8218
8219 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8220 let mut builder = gpui::PathBuilder::fill();
8221 builder.move_to(first_top_right - top_curve_width);
8222 builder.curve_to(first_top_right + curve_height, first_top_right);
8223
8224 let mut iter = lines.iter().enumerate().peekable();
8225 while let Some((ix, line)) = iter.next() {
8226 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8227
8228 if let Some((_, next_line)) = iter.peek() {
8229 let next_top_right = point(next_line.end_x, bottom_right.y);
8230
8231 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8232 Ordering::Equal => {
8233 builder.line_to(bottom_right);
8234 }
8235 Ordering::Less => {
8236 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8237 builder.line_to(bottom_right - curve_height);
8238 if self.corner_radius > Pixels::ZERO {
8239 builder.curve_to(bottom_right - curve_width, bottom_right);
8240 }
8241 builder.line_to(next_top_right + curve_width);
8242 if self.corner_radius > Pixels::ZERO {
8243 builder.curve_to(next_top_right + curve_height, next_top_right);
8244 }
8245 }
8246 Ordering::Greater => {
8247 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8248 builder.line_to(bottom_right - curve_height);
8249 if self.corner_radius > Pixels::ZERO {
8250 builder.curve_to(bottom_right + curve_width, bottom_right);
8251 }
8252 builder.line_to(next_top_right - curve_width);
8253 if self.corner_radius > Pixels::ZERO {
8254 builder.curve_to(next_top_right + curve_height, next_top_right);
8255 }
8256 }
8257 }
8258 } else {
8259 let curve_width = curve_width(line.start_x, line.end_x);
8260 builder.line_to(bottom_right - curve_height);
8261 if self.corner_radius > Pixels::ZERO {
8262 builder.curve_to(bottom_right - curve_width, bottom_right);
8263 }
8264
8265 let bottom_left = point(line.start_x, bottom_right.y);
8266 builder.line_to(bottom_left + curve_width);
8267 if self.corner_radius > Pixels::ZERO {
8268 builder.curve_to(bottom_left - curve_height, bottom_left);
8269 }
8270 }
8271 }
8272
8273 if first_line.start_x > last_line.start_x {
8274 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8275 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8276 builder.line_to(second_top_left + curve_height);
8277 if self.corner_radius > Pixels::ZERO {
8278 builder.curve_to(second_top_left + curve_width, second_top_left);
8279 }
8280 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8281 builder.line_to(first_bottom_left - curve_width);
8282 if self.corner_radius > Pixels::ZERO {
8283 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8284 }
8285 }
8286
8287 builder.line_to(first_top_left + curve_height);
8288 if self.corner_radius > Pixels::ZERO {
8289 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8290 }
8291 builder.line_to(first_top_right - top_curve_width);
8292
8293 if let Ok(path) = builder.build() {
8294 window.paint_path(path, self.color);
8295 }
8296 }
8297}
8298
8299enum CursorPopoverType {
8300 CodeContextMenu,
8301 EditPrediction,
8302}
8303
8304pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8305 (delta.pow(1.5) / 100.0).into()
8306}
8307
8308fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8309 (delta.pow(1.2) / 300.0).into()
8310}
8311
8312pub fn register_action<T: Action>(
8313 editor: &Entity<Editor>,
8314 window: &mut Window,
8315 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8316) {
8317 let editor = editor.clone();
8318 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8319 let action = action.downcast_ref().unwrap();
8320 if phase == DispatchPhase::Bubble {
8321 editor.update(cx, |editor, cx| {
8322 listener(editor, action, window, cx);
8323 })
8324 }
8325 })
8326}
8327
8328fn compute_auto_height_layout(
8329 editor: &mut Editor,
8330 max_lines: usize,
8331 max_line_number_width: Pixels,
8332 known_dimensions: Size<Option<Pixels>>,
8333 available_width: AvailableSpace,
8334 window: &mut Window,
8335 cx: &mut Context<Editor>,
8336) -> Option<Size<Pixels>> {
8337 let width = known_dimensions.width.or({
8338 if let AvailableSpace::Definite(available_width) = available_width {
8339 Some(available_width)
8340 } else {
8341 None
8342 }
8343 })?;
8344 if let Some(height) = known_dimensions.height {
8345 return Some(size(width, height));
8346 }
8347
8348 let style = editor.style.as_ref().unwrap();
8349 let font_id = window.text_system().resolve_font(&style.text.font());
8350 let font_size = style.text.font_size.to_pixels(window.rem_size());
8351 let line_height = style.text.line_height_in_pixels(window.rem_size());
8352 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8353
8354 let mut snapshot = editor.snapshot(window, cx);
8355 let gutter_dimensions = snapshot
8356 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8357 .unwrap_or_default();
8358
8359 editor.gutter_dimensions = gutter_dimensions;
8360 let text_width = width - gutter_dimensions.width;
8361 let overscroll = size(em_width, px(0.));
8362
8363 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8364 if editor.set_wrap_width(Some(editor_width), cx) {
8365 snapshot = editor.snapshot(window, cx);
8366 }
8367
8368 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8369 let height = scroll_height
8370 .max(line_height)
8371 .min(line_height * max_lines as f32);
8372
8373 Some(size(width, height))
8374}
8375
8376#[cfg(test)]
8377mod tests {
8378 use super::*;
8379 use crate::{
8380 display_map::{BlockPlacement, BlockProperties},
8381 editor_tests::{init_test, update_test_language_settings},
8382 Editor, MultiBuffer,
8383 };
8384 use gpui::{TestAppContext, VisualTestContext};
8385 use language::language_settings;
8386 use log::info;
8387 use similar::DiffableStr;
8388 use std::num::NonZeroU32;
8389 use util::test::sample_text;
8390
8391 #[gpui::test]
8392 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8393 init_test(cx, |_| {});
8394 let window = cx.add_window(|window, cx| {
8395 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8396 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8397 });
8398
8399 let editor = window.root(cx).unwrap();
8400 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8401 let line_height = window
8402 .update(cx, |_, window, _| {
8403 style.text.line_height_in_pixels(window.rem_size())
8404 })
8405 .unwrap();
8406 let element = EditorElement::new(&editor, style);
8407 let snapshot = window
8408 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8409 .unwrap();
8410
8411 let layouts = cx
8412 .update_window(*window, |_, window, cx| {
8413 element.layout_line_numbers(
8414 None,
8415 GutterDimensions {
8416 left_padding: Pixels::ZERO,
8417 right_padding: Pixels::ZERO,
8418 width: px(30.0),
8419 margin: Pixels::ZERO,
8420 git_blame_entries_width: None,
8421 },
8422 line_height,
8423 gpui::Point::default(),
8424 DisplayRow(0)..DisplayRow(6),
8425 &(0..6)
8426 .map(|row| RowInfo {
8427 buffer_row: Some(row),
8428 ..Default::default()
8429 })
8430 .collect::<Vec<_>>(),
8431 Some(DisplayPoint::new(DisplayRow(0), 0)),
8432 &snapshot,
8433 window,
8434 cx,
8435 )
8436 })
8437 .unwrap();
8438 assert_eq!(layouts.len(), 6);
8439
8440 let relative_rows = window
8441 .update(cx, |editor, window, cx| {
8442 let snapshot = editor.snapshot(window, cx);
8443 element.calculate_relative_line_numbers(
8444 &snapshot,
8445 &(DisplayRow(0)..DisplayRow(6)),
8446 Some(DisplayRow(3)),
8447 )
8448 })
8449 .unwrap();
8450 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8451 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8452 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8453 // current line has no relative number
8454 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8455 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8456
8457 // works if cursor is before screen
8458 let relative_rows = window
8459 .update(cx, |editor, window, cx| {
8460 let snapshot = editor.snapshot(window, cx);
8461 element.calculate_relative_line_numbers(
8462 &snapshot,
8463 &(DisplayRow(3)..DisplayRow(6)),
8464 Some(DisplayRow(1)),
8465 )
8466 })
8467 .unwrap();
8468 assert_eq!(relative_rows.len(), 3);
8469 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8470 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8471 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8472
8473 // works if cursor is after screen
8474 let relative_rows = window
8475 .update(cx, |editor, window, cx| {
8476 let snapshot = editor.snapshot(window, cx);
8477 element.calculate_relative_line_numbers(
8478 &snapshot,
8479 &(DisplayRow(0)..DisplayRow(3)),
8480 Some(DisplayRow(6)),
8481 )
8482 })
8483 .unwrap();
8484 assert_eq!(relative_rows.len(), 3);
8485 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8486 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8487 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8488 }
8489
8490 #[gpui::test]
8491 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8492 init_test(cx, |_| {});
8493
8494 let window = cx.add_window(|window, cx| {
8495 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8496 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8497 });
8498 let cx = &mut VisualTestContext::from_window(*window, cx);
8499 let editor = window.root(cx).unwrap();
8500 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8501
8502 window
8503 .update(cx, |editor, window, cx| {
8504 editor.cursor_shape = CursorShape::Block;
8505 editor.change_selections(None, window, cx, |s| {
8506 s.select_ranges([
8507 Point::new(0, 0)..Point::new(1, 0),
8508 Point::new(3, 2)..Point::new(3, 3),
8509 Point::new(5, 6)..Point::new(6, 0),
8510 ]);
8511 });
8512 })
8513 .unwrap();
8514
8515 let (_, state) = cx.draw(
8516 point(px(500.), px(500.)),
8517 size(px(500.), px(500.)),
8518 |_, _| EditorElement::new(&editor, style),
8519 );
8520
8521 assert_eq!(state.selections.len(), 1);
8522 let local_selections = &state.selections[0].1;
8523 assert_eq!(local_selections.len(), 3);
8524 // moves cursor back one line
8525 assert_eq!(
8526 local_selections[0].head,
8527 DisplayPoint::new(DisplayRow(0), 6)
8528 );
8529 assert_eq!(
8530 local_selections[0].range,
8531 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8532 );
8533
8534 // moves cursor back one column
8535 assert_eq!(
8536 local_selections[1].range,
8537 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8538 );
8539 assert_eq!(
8540 local_selections[1].head,
8541 DisplayPoint::new(DisplayRow(3), 2)
8542 );
8543
8544 // leaves cursor on the max point
8545 assert_eq!(
8546 local_selections[2].range,
8547 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8548 );
8549 assert_eq!(
8550 local_selections[2].head,
8551 DisplayPoint::new(DisplayRow(6), 0)
8552 );
8553
8554 // active lines does not include 1 (even though the range of the selection does)
8555 assert_eq!(
8556 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8557 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8558 );
8559
8560 // multi-buffer support
8561 // in DisplayPoint coordinates, this is what we're dealing with:
8562 // 0: [[file
8563 // 1: header
8564 // 2: section]]
8565 // 3: aaaaaa
8566 // 4: bbbbbb
8567 // 5: cccccc
8568 // 6:
8569 // 7: [[footer]]
8570 // 8: [[header]]
8571 // 9: ffffff
8572 // 10: gggggg
8573 // 11: hhhhhh
8574 // 12:
8575 // 13: [[footer]]
8576 // 14: [[file
8577 // 15: header
8578 // 16: section]]
8579 // 17: bbbbbb
8580 // 18: cccccc
8581 // 19: dddddd
8582 // 20: [[footer]]
8583 let window = cx.add_window(|window, cx| {
8584 let buffer = MultiBuffer::build_multi(
8585 [
8586 (
8587 &(sample_text(8, 6, 'a') + "\n"),
8588 vec![
8589 Point::new(0, 0)..Point::new(3, 0),
8590 Point::new(4, 0)..Point::new(7, 0),
8591 ],
8592 ),
8593 (
8594 &(sample_text(8, 6, 'a') + "\n"),
8595 vec![Point::new(1, 0)..Point::new(3, 0)],
8596 ),
8597 ],
8598 cx,
8599 );
8600 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8601 });
8602 let editor = window.root(cx).unwrap();
8603 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8604 let _state = window.update(cx, |editor, window, cx| {
8605 editor.cursor_shape = CursorShape::Block;
8606 editor.change_selections(None, window, cx, |s| {
8607 s.select_display_ranges([
8608 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8609 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8610 ]);
8611 });
8612 });
8613
8614 let (_, state) = cx.draw(
8615 point(px(500.), px(500.)),
8616 size(px(500.), px(500.)),
8617 |_, _| EditorElement::new(&editor, style),
8618 );
8619 assert_eq!(state.selections.len(), 1);
8620 let local_selections = &state.selections[0].1;
8621 assert_eq!(local_selections.len(), 2);
8622
8623 // moves cursor on excerpt boundary back a line
8624 // and doesn't allow selection to bleed through
8625 assert_eq!(
8626 local_selections[0].range,
8627 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8628 );
8629 assert_eq!(
8630 local_selections[0].head,
8631 DisplayPoint::new(DisplayRow(6), 0)
8632 );
8633 // moves cursor on buffer boundary back two lines
8634 // and doesn't allow selection to bleed through
8635 assert_eq!(
8636 local_selections[1].range,
8637 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8638 );
8639 assert_eq!(
8640 local_selections[1].head,
8641 DisplayPoint::new(DisplayRow(12), 0)
8642 );
8643 }
8644
8645 #[gpui::test]
8646 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8647 init_test(cx, |_| {});
8648
8649 let window = cx.add_window(|window, cx| {
8650 let buffer = MultiBuffer::build_simple("", cx);
8651 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8652 });
8653 let cx = &mut VisualTestContext::from_window(*window, cx);
8654 let editor = window.root(cx).unwrap();
8655 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8656 window
8657 .update(cx, |editor, window, cx| {
8658 editor.set_placeholder_text("hello", cx);
8659 editor.insert_blocks(
8660 [BlockProperties {
8661 style: BlockStyle::Fixed,
8662 placement: BlockPlacement::Above(Anchor::min()),
8663 height: 3,
8664 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8665 priority: 0,
8666 }],
8667 None,
8668 cx,
8669 );
8670
8671 // Blur the editor so that it displays placeholder text.
8672 window.blur();
8673 })
8674 .unwrap();
8675
8676 let (_, state) = cx.draw(
8677 point(px(500.), px(500.)),
8678 size(px(500.), px(500.)),
8679 |_, _| EditorElement::new(&editor, style),
8680 );
8681 assert_eq!(state.position_map.line_layouts.len(), 4);
8682 assert_eq!(state.line_numbers.len(), 1);
8683 assert_eq!(
8684 state
8685 .line_numbers
8686 .get(&MultiBufferRow(0))
8687 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8688 Some("1")
8689 );
8690 }
8691
8692 #[gpui::test]
8693 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8694 const TAB_SIZE: u32 = 4;
8695
8696 let input_text = "\t \t|\t| a b";
8697 let expected_invisibles = vec![
8698 Invisible::Tab {
8699 line_start_offset: 0,
8700 line_end_offset: TAB_SIZE as usize,
8701 },
8702 Invisible::Whitespace {
8703 line_offset: TAB_SIZE as usize,
8704 },
8705 Invisible::Tab {
8706 line_start_offset: TAB_SIZE as usize + 1,
8707 line_end_offset: TAB_SIZE as usize * 2,
8708 },
8709 Invisible::Tab {
8710 line_start_offset: TAB_SIZE as usize * 2 + 1,
8711 line_end_offset: TAB_SIZE as usize * 3,
8712 },
8713 Invisible::Whitespace {
8714 line_offset: TAB_SIZE as usize * 3 + 1,
8715 },
8716 Invisible::Whitespace {
8717 line_offset: TAB_SIZE as usize * 3 + 3,
8718 },
8719 ];
8720 assert_eq!(
8721 expected_invisibles.len(),
8722 input_text
8723 .chars()
8724 .filter(|initial_char| initial_char.is_whitespace())
8725 .count(),
8726 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8727 );
8728
8729 for show_line_numbers in [true, false] {
8730 init_test(cx, |s| {
8731 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8732 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8733 });
8734
8735 let actual_invisibles = collect_invisibles_from_new_editor(
8736 cx,
8737 EditorMode::Full,
8738 input_text,
8739 px(500.0),
8740 show_line_numbers,
8741 );
8742
8743 assert_eq!(expected_invisibles, actual_invisibles);
8744 }
8745 }
8746
8747 #[gpui::test]
8748 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8749 init_test(cx, |s| {
8750 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8751 s.defaults.tab_size = NonZeroU32::new(4);
8752 });
8753
8754 for editor_mode_without_invisibles in [
8755 EditorMode::SingleLine { auto_width: false },
8756 EditorMode::AutoHeight { max_lines: 100 },
8757 ] {
8758 for show_line_numbers in [true, false] {
8759 let invisibles = collect_invisibles_from_new_editor(
8760 cx,
8761 editor_mode_without_invisibles,
8762 "\t\t\t| | a b",
8763 px(500.0),
8764 show_line_numbers,
8765 );
8766 assert!(invisibles.is_empty(),
8767 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8768 }
8769 }
8770 }
8771
8772 #[gpui::test]
8773 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8774 let tab_size = 4;
8775 let input_text = "a\tbcd ".repeat(9);
8776 let repeated_invisibles = [
8777 Invisible::Tab {
8778 line_start_offset: 1,
8779 line_end_offset: tab_size as usize,
8780 },
8781 Invisible::Whitespace {
8782 line_offset: tab_size as usize + 3,
8783 },
8784 Invisible::Whitespace {
8785 line_offset: tab_size as usize + 4,
8786 },
8787 Invisible::Whitespace {
8788 line_offset: tab_size as usize + 5,
8789 },
8790 Invisible::Whitespace {
8791 line_offset: tab_size as usize + 6,
8792 },
8793 Invisible::Whitespace {
8794 line_offset: tab_size as usize + 7,
8795 },
8796 ];
8797 let expected_invisibles = std::iter::once(repeated_invisibles)
8798 .cycle()
8799 .take(9)
8800 .flatten()
8801 .collect::<Vec<_>>();
8802 assert_eq!(
8803 expected_invisibles.len(),
8804 input_text
8805 .chars()
8806 .filter(|initial_char| initial_char.is_whitespace())
8807 .count(),
8808 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8809 );
8810 info!("Expected invisibles: {expected_invisibles:?}");
8811
8812 init_test(cx, |_| {});
8813
8814 // Put the same string with repeating whitespace pattern into editors of various size,
8815 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8816 let resize_step = 10.0;
8817 let mut editor_width = 200.0;
8818 while editor_width <= 1000.0 {
8819 for show_line_numbers in [true, false] {
8820 update_test_language_settings(cx, |s| {
8821 s.defaults.tab_size = NonZeroU32::new(tab_size);
8822 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8823 s.defaults.preferred_line_length = Some(editor_width as u32);
8824 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8825 });
8826
8827 let actual_invisibles = collect_invisibles_from_new_editor(
8828 cx,
8829 EditorMode::Full,
8830 &input_text,
8831 px(editor_width),
8832 show_line_numbers,
8833 );
8834
8835 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8836 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8837 let mut i = 0;
8838 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8839 i = actual_index;
8840 match expected_invisibles.get(i) {
8841 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8842 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8843 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8844 _ => {
8845 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8846 }
8847 },
8848 None => {
8849 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8850 }
8851 }
8852 }
8853 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8854 assert!(
8855 missing_expected_invisibles.is_empty(),
8856 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8857 );
8858
8859 editor_width += resize_step;
8860 }
8861 }
8862 }
8863
8864 fn collect_invisibles_from_new_editor(
8865 cx: &mut TestAppContext,
8866 editor_mode: EditorMode,
8867 input_text: &str,
8868 editor_width: Pixels,
8869 show_line_numbers: bool,
8870 ) -> Vec<Invisible> {
8871 info!(
8872 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8873 editor_width.0
8874 );
8875 let window = cx.add_window(|window, cx| {
8876 let buffer = MultiBuffer::build_simple(input_text, cx);
8877 Editor::new(editor_mode, buffer, None, true, window, cx)
8878 });
8879 let cx = &mut VisualTestContext::from_window(*window, cx);
8880 let editor = window.root(cx).unwrap();
8881
8882 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8883 window
8884 .update(cx, |editor, _, cx| {
8885 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8886 editor.set_wrap_width(Some(editor_width), cx);
8887 editor.set_show_line_numbers(show_line_numbers, cx);
8888 })
8889 .unwrap();
8890 let (_, state) = cx.draw(
8891 point(px(500.), px(500.)),
8892 size(px(500.), px(500.)),
8893 |_, _| EditorElement::new(&editor, style),
8894 );
8895 state
8896 .position_map
8897 .line_layouts
8898 .iter()
8899 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8900 .cloned()
8901 .collect()
8902 }
8903}
8904
8905fn diff_hunk_controls(
8906 row: u32,
8907 hunk_range: Range<Anchor>,
8908 line_height: Pixels,
8909 editor: &Entity<Editor>,
8910 _window: &mut Window,
8911 cx: &mut App,
8912) -> AnyElement {
8913 let stage = editor.update(cx, |editor, cx| {
8914 let snapshot = editor.buffer.read(cx).snapshot(cx);
8915 editor.has_stageable_diff_hunks_in_ranges(&[hunk_range.start..hunk_range.start], &snapshot)
8916 });
8917 h_flex()
8918 .h(line_height)
8919 .mr_1()
8920 .gap_1()
8921 .px_1()
8922 .pb_1()
8923 .border_b_1()
8924 .border_color(cx.theme().colors().border_variant)
8925 .rounded_b_lg()
8926 .bg(cx.theme().colors().editor_background)
8927 .gap_1()
8928 .child(
8929 IconButton::new(("discard-hunk", row as u64), IconName::Undo)
8930 .shape(IconButtonShape::Square)
8931 .icon_size(IconSize::Small)
8932 .tooltip({
8933 let focus_handle = editor.focus_handle(cx);
8934 move |window, cx| {
8935 Tooltip::for_action_in(
8936 "Discard Hunk",
8937 &RevertSelectedHunks,
8938 &focus_handle,
8939 window,
8940 cx,
8941 )
8942 }
8943 })
8944 .on_click({
8945 let editor = editor.clone();
8946 move |_event, window, cx| {
8947 editor.update(cx, |editor, cx| {
8948 let snapshot = editor.snapshot(window, cx);
8949 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8950 editor.discard_hunks_in_ranges([point..point].into_iter(), window, cx);
8951 });
8952 }
8953 }),
8954 )
8955 .child(
8956 Button::new(("skip-hunk", row as u64), "Skip")
8957 .label_size(LabelSize::Small)
8958 .tooltip({
8959 let focus_handle = editor.focus_handle(cx);
8960 move |window, cx| {
8961 Tooltip::for_action_in("Skip Hunk", &GoToHunk, &focus_handle, window, cx)
8962 }
8963 })
8964 .on_click({
8965 let editor = editor.clone();
8966 move |_event, window, cx| {
8967 editor.update(cx, |editor, cx| {
8968 let snapshot = editor.snapshot(window, cx);
8969 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8970 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8971 editor.expand_selected_diff_hunks(cx);
8972 });
8973 }
8974 }),
8975 )
8976 .child(
8977 Button::new(
8978 ("stage-unstage-hunk", row as u64),
8979 if stage { "Stage" } else { "Unstage" },
8980 )
8981 .label_size(LabelSize::Small)
8982 .tooltip({
8983 let focus_handle = editor.focus_handle(cx);
8984 move |window, cx| {
8985 Tooltip::for_action_in(
8986 if stage { "Stage Hunk" } else { "Unstage Hunk" },
8987 &ToggleStagedSelectedDiffHunks,
8988 &focus_handle,
8989 window,
8990 cx,
8991 )
8992 }
8993 })
8994 .on_click({
8995 let editor = editor.clone();
8996 move |_event, _window, cx| {
8997 editor.update(cx, |editor, cx| {
8998 editor
8999 .stage_or_unstage_diff_hunks(&[hunk_range.start..hunk_range.start], cx);
9000 });
9001 }
9002 }),
9003 )
9004 .into_any_element()
9005}