1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point,
23 RevertSelectedHunks, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection,
24 SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS,
25 CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
26 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
27};
28use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus};
29use client::ParticipantIndex;
30use collections::{BTreeMap, HashMap, HashSet};
31use file_icons::FileIcons;
32use git::{blame::BlameEntry, Oid};
33use gpui::{
34 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
35 point, px, quad, relative, size, svg, transparent_black, Action, AnyElement, App,
36 AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners,
37 CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _,
38 FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
39 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
40 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
41 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
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 #[allow(clippy::too_many_arguments)]
935 fn layout_selections(
936 &self,
937 start_anchor: Anchor,
938 end_anchor: Anchor,
939 local_selections: &[Selection<Point>],
940 snapshot: &EditorSnapshot,
941 start_row: DisplayRow,
942 end_row: DisplayRow,
943 window: &mut Window,
944 cx: &mut App,
945 ) -> (
946 Vec<(PlayerColor, Vec<SelectionLayout>)>,
947 BTreeMap<DisplayRow, bool>,
948 Option<DisplayPoint>,
949 ) {
950 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
951 let mut active_rows = BTreeMap::new();
952 let mut newest_selection_head = None;
953 self.editor.update(cx, |editor, cx| {
954 if editor.show_local_selections {
955 let mut layouts = Vec::new();
956 let newest = editor.selections.newest(cx);
957 for selection in local_selections.iter().cloned() {
958 let is_empty = selection.start == selection.end;
959 let is_newest = selection == newest;
960
961 let layout = SelectionLayout::new(
962 selection,
963 editor.selections.line_mode,
964 editor.cursor_shape,
965 &snapshot.display_snapshot,
966 is_newest,
967 editor.leader_peer_id.is_none(),
968 None,
969 );
970 if is_newest {
971 newest_selection_head = Some(layout.head);
972 }
973
974 for row in cmp::max(layout.active_rows.start.0, start_row.0)
975 ..=cmp::min(layout.active_rows.end.0, end_row.0)
976 {
977 let contains_non_empty_selection =
978 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
979 *contains_non_empty_selection |= !is_empty;
980 }
981 layouts.push(layout);
982 }
983
984 let player = editor.current_user_player_color(cx);
985 selections.push((player, layouts));
986 }
987
988 if let Some(collaboration_hub) = &editor.collaboration_hub {
989 // When following someone, render the local selections in their color.
990 if let Some(leader_id) = editor.leader_peer_id {
991 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
992 {
993 if let Some(participant_index) = collaboration_hub
994 .user_participant_indices(cx)
995 .get(&collaborator.user_id)
996 {
997 if let Some((local_selection_style, _)) = selections.first_mut() {
998 *local_selection_style = cx
999 .theme()
1000 .players()
1001 .color_for_participant(participant_index.0);
1002 }
1003 }
1004 }
1005 }
1006
1007 let mut remote_selections = HashMap::default();
1008 for selection in snapshot.remote_selections_in_range(
1009 &(start_anchor..end_anchor),
1010 collaboration_hub.as_ref(),
1011 cx,
1012 ) {
1013 let selection_style =
1014 Self::get_participant_color(selection.participant_index, cx);
1015
1016 // Don't re-render the leader's selections, since the local selections
1017 // match theirs.
1018 if Some(selection.peer_id) == editor.leader_peer_id {
1019 continue;
1020 }
1021 let key = HoveredCursor {
1022 replica_id: selection.replica_id,
1023 selection_id: selection.selection.id,
1024 };
1025
1026 let is_shown =
1027 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1028
1029 remote_selections
1030 .entry(selection.replica_id)
1031 .or_insert((selection_style, Vec::new()))
1032 .1
1033 .push(SelectionLayout::new(
1034 selection.selection,
1035 selection.line_mode,
1036 selection.cursor_shape,
1037 &snapshot.display_snapshot,
1038 false,
1039 false,
1040 if is_shown { selection.user_name } else { None },
1041 ));
1042 }
1043
1044 selections.extend(remote_selections.into_values());
1045 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1046 let layouts = snapshot
1047 .buffer_snapshot
1048 .selections_in_range(&(start_anchor..end_anchor), true)
1049 .map(move |(_, line_mode, cursor_shape, selection)| {
1050 SelectionLayout::new(
1051 selection,
1052 line_mode,
1053 cursor_shape,
1054 &snapshot.display_snapshot,
1055 false,
1056 false,
1057 None,
1058 )
1059 })
1060 .collect::<Vec<_>>();
1061 let player = editor.current_user_player_color(cx);
1062 selections.push((player, layouts));
1063 }
1064 });
1065 (selections, active_rows, newest_selection_head)
1066 }
1067
1068 fn collect_cursors(
1069 &self,
1070 snapshot: &EditorSnapshot,
1071 cx: &mut App,
1072 ) -> Vec<(DisplayPoint, Hsla)> {
1073 let editor = self.editor.read(cx);
1074 let mut cursors = Vec::new();
1075 let mut skip_local = false;
1076 let mut add_cursor = |anchor: Anchor, color| {
1077 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1078 };
1079 // Remote cursors
1080 if let Some(collaboration_hub) = &editor.collaboration_hub {
1081 for remote_selection in snapshot.remote_selections_in_range(
1082 &(Anchor::min()..Anchor::max()),
1083 collaboration_hub.deref(),
1084 cx,
1085 ) {
1086 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1087 add_cursor(remote_selection.selection.head(), color.cursor);
1088 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1089 skip_local = true;
1090 }
1091 }
1092 }
1093 // Local cursors
1094 if !skip_local {
1095 let color = cx.theme().players().local().cursor;
1096 editor.selections.disjoint.iter().for_each(|selection| {
1097 add_cursor(selection.head(), color);
1098 });
1099 if let Some(ref selection) = editor.selections.pending_anchor() {
1100 add_cursor(selection.head(), color);
1101 }
1102 }
1103 cursors
1104 }
1105
1106 #[allow(clippy::too_many_arguments)]
1107 fn layout_visible_cursors(
1108 &self,
1109 snapshot: &EditorSnapshot,
1110 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1111 block_start_rows: &HashSet<DisplayRow>,
1112 visible_display_row_range: Range<DisplayRow>,
1113 line_layouts: &[LineWithInvisibles],
1114 text_hitbox: &Hitbox,
1115 content_origin: gpui::Point<Pixels>,
1116 scroll_position: gpui::Point<f32>,
1117 scroll_pixel_position: gpui::Point<Pixels>,
1118 line_height: Pixels,
1119 em_width: Pixels,
1120 em_advance: Pixels,
1121 autoscroll_containing_element: bool,
1122 window: &mut Window,
1123 cx: &mut App,
1124 ) -> Vec<CursorLayout> {
1125 let mut autoscroll_bounds = None;
1126 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1127 let mut cursors = Vec::new();
1128
1129 let show_local_cursors = editor.show_local_cursors(window, cx);
1130
1131 for (player_color, selections) in selections {
1132 for selection in selections {
1133 let cursor_position = selection.head;
1134
1135 let in_range = visible_display_row_range.contains(&cursor_position.row());
1136 if (selection.is_local && !show_local_cursors)
1137 || !in_range
1138 || block_start_rows.contains(&cursor_position.row())
1139 {
1140 continue;
1141 }
1142
1143 let cursor_row_layout = &line_layouts
1144 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1145 let cursor_column = cursor_position.column() as usize;
1146
1147 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1148 let mut block_width =
1149 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1150 if block_width == Pixels::ZERO {
1151 block_width = em_advance;
1152 }
1153 let block_text = if let CursorShape::Block = selection.cursor_shape {
1154 snapshot
1155 .grapheme_at(cursor_position)
1156 .or_else(|| {
1157 if cursor_column == 0 {
1158 snapshot.placeholder_text().and_then(|s| {
1159 s.graphemes(true).next().map(|s| s.to_string().into())
1160 })
1161 } else {
1162 None
1163 }
1164 })
1165 .and_then(|text| {
1166 let len = text.len();
1167
1168 let font = cursor_row_layout
1169 .font_id_for_index(cursor_column)
1170 .and_then(|cursor_font_id| {
1171 window.text_system().get_font_for_id(cursor_font_id)
1172 })
1173 .unwrap_or(self.style.text.font());
1174
1175 // Invert the text color for the block cursor. Ensure that the text
1176 // color is opaque enough to be visible against the background color.
1177 //
1178 // 0.75 is an arbitrary threshold to determine if the background color is
1179 // opaque enough to use as a text color.
1180 //
1181 // TODO: In the future we should ensure themes have a `text_inverse` color.
1182 let color = if cx.theme().colors().editor_background.a < 0.75 {
1183 match cx.theme().appearance {
1184 Appearance::Dark => Hsla::black(),
1185 Appearance::Light => Hsla::white(),
1186 }
1187 } else {
1188 cx.theme().colors().editor_background
1189 };
1190
1191 window
1192 .text_system()
1193 .shape_line(
1194 text,
1195 cursor_row_layout.font_size,
1196 &[TextRun {
1197 len,
1198 font,
1199 color,
1200 background_color: None,
1201 strikethrough: None,
1202 underline: None,
1203 }],
1204 )
1205 .log_err()
1206 })
1207 } else {
1208 None
1209 };
1210
1211 let x = cursor_character_x - scroll_pixel_position.x;
1212 let y = (cursor_position.row().as_f32()
1213 - scroll_pixel_position.y / line_height)
1214 * line_height;
1215 if selection.is_newest {
1216 editor.pixel_position_of_newest_cursor = Some(point(
1217 text_hitbox.origin.x + x + block_width / 2.,
1218 text_hitbox.origin.y + y + line_height / 2.,
1219 ));
1220
1221 if autoscroll_containing_element {
1222 let top = text_hitbox.origin.y
1223 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1224 * line_height;
1225 let left = text_hitbox.origin.x
1226 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1227 .max(0.)
1228 * em_width;
1229
1230 let bottom = text_hitbox.origin.y
1231 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1232 * line_height;
1233 let right = text_hitbox.origin.x
1234 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1235 * em_width;
1236
1237 autoscroll_bounds =
1238 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1239 }
1240 }
1241
1242 let mut cursor = CursorLayout {
1243 color: player_color.cursor,
1244 block_width,
1245 origin: point(x, y),
1246 line_height,
1247 shape: selection.cursor_shape,
1248 block_text,
1249 cursor_name: None,
1250 };
1251 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1252 string: name,
1253 color: self.style.background,
1254 is_top_row: cursor_position.row().0 == 0,
1255 });
1256 cursor.layout(content_origin, cursor_name, window, cx);
1257 cursors.push(cursor);
1258 }
1259 }
1260
1261 cursors
1262 });
1263
1264 if let Some(bounds) = autoscroll_bounds {
1265 window.request_autoscroll(bounds);
1266 }
1267
1268 cursor_layouts
1269 }
1270
1271 fn layout_scrollbars(
1272 &self,
1273 snapshot: &EditorSnapshot,
1274 scrollbar_range_data: ScrollbarRangeData,
1275 scroll_position: gpui::Point<f32>,
1276 non_visible_cursors: bool,
1277 window: &mut Window,
1278 cx: &mut App,
1279 ) -> AxisPair<Option<ScrollbarLayout>> {
1280 let letter_size = scrollbar_range_data.letter_size;
1281 let text_units_per_page = axis_pair(
1282 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1283 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1284 );
1285
1286 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1287 let show_scrollbars = self.editor.read(cx).show_scrollbars
1288 && match scrollbar_settings.show {
1289 ShowScrollbar::Auto => {
1290 let editor = self.editor.read(cx);
1291 let is_singleton = editor.is_singleton(cx);
1292 // Git
1293 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1294 ||
1295 // Buffer Search Results
1296 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1297 ||
1298 // Selected Text Occurrences
1299 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1300 ||
1301 // Selected Symbol Occurrences
1302 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1303 ||
1304 // Diagnostics
1305 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1306 ||
1307 // Cursors out of sight
1308 non_visible_cursors
1309 ||
1310 // Scrollmanager
1311 editor.scroll_manager.scrollbars_visible()
1312 }
1313 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1314 ShowScrollbar::Always => true,
1315 ShowScrollbar::Never => false,
1316 };
1317
1318 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1319
1320 if snapshot.mode != EditorMode::Full {
1321 return axis_pair(None, None);
1322 }
1323
1324 let visible_range = axis_pair(
1325 axes.horizontal
1326 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1327 axes.vertical
1328 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1329 );
1330
1331 // If a drag took place after we started dragging the scrollbar,
1332 // cancel the scrollbar drag.
1333 if cx.has_active_drag() {
1334 self.editor.update(cx, |editor, cx| {
1335 editor
1336 .scroll_manager
1337 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1338 editor
1339 .scroll_manager
1340 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1341 });
1342 }
1343
1344 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1345
1346 let track_bounds = axis_pair(
1347 axes.horizontal.then(|| {
1348 Bounds::from_corners(
1349 point(
1350 text_bounds.bottom_left().x,
1351 text_bounds.bottom_left().y - self.style.scrollbar_width,
1352 ),
1353 point(
1354 text_bounds.bottom_right().x
1355 - if axes.vertical {
1356 self.style.scrollbar_width
1357 } else {
1358 px(0.)
1359 },
1360 text_bounds.bottom_right().y,
1361 ),
1362 )
1363 }),
1364 axes.vertical.then(|| {
1365 Bounds::from_corners(
1366 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1367 text_bounds.bottom_right(),
1368 )
1369 }),
1370 );
1371
1372 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1373 let total_text_units = axis_pair(
1374 Some(scroll_range_size.width / letter_size.width),
1375 Some(scroll_range_size.height / letter_size.height),
1376 );
1377
1378 let thumb_size = axis_pair(
1379 total_text_units
1380 .horizontal
1381 .zip(track_bounds.horizontal)
1382 .and_then(|(total_text_units_x, track_bounds_x)| {
1383 if text_units_per_page.horizontal >= total_text_units_x {
1384 return None;
1385 }
1386
1387 let thumb_percent =
1388 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1389
1390 Some(track_bounds_x.size.width * thumb_percent)
1391 }),
1392 total_text_units.vertical.zip(track_bounds.vertical).map(
1393 |(total_text_units_y, track_bounds_y)| {
1394 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1395
1396 track_bounds_y.size.height * thumb_percent
1397 },
1398 ),
1399 );
1400
1401 // NOTE: Space not taken by track bounds divided by text units not on screen
1402 let text_unit_size = axis_pair(
1403 thumb_size
1404 .horizontal
1405 .zip(track_bounds.horizontal)
1406 .zip(total_text_units.horizontal)
1407 .map(|((thumb_size, track_bounds), total_text_units)| {
1408 (track_bounds.size.width - thumb_size)
1409 / (total_text_units - text_units_per_page.horizontal).max(0.)
1410 }),
1411 thumb_size
1412 .vertical
1413 .zip(track_bounds.vertical)
1414 .zip(total_text_units.vertical)
1415 .map(|((thumb_size, track_bounds), total_text_units)| {
1416 (track_bounds.size.height - thumb_size)
1417 / (total_text_units - text_units_per_page.vertical).max(0.)
1418 }),
1419 );
1420
1421 let horizontal_scrollbar = track_bounds
1422 .horizontal
1423 .zip(visible_range.horizontal)
1424 .zip(text_unit_size.horizontal)
1425 .zip(thumb_size.horizontal)
1426 .map(
1427 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1428 hitbox: window.insert_hitbox(track_bounds, false),
1429 visible_range,
1430 text_unit_size,
1431 visible: show_scrollbars,
1432 thumb_size,
1433 axis: Axis::Horizontal,
1434 },
1435 );
1436
1437 let vertical_scrollbar = track_bounds
1438 .vertical
1439 .zip(visible_range.vertical)
1440 .zip(text_unit_size.vertical)
1441 .zip(thumb_size.vertical)
1442 .map(
1443 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1444 hitbox: window.insert_hitbox(track_bounds, false),
1445 visible_range,
1446 text_unit_size,
1447 visible: show_scrollbars,
1448 thumb_size,
1449 axis: Axis::Vertical,
1450 },
1451 );
1452
1453 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1454 }
1455
1456 #[allow(clippy::too_many_arguments)]
1457 fn prepaint_crease_toggles(
1458 &self,
1459 crease_toggles: &mut [Option<AnyElement>],
1460 line_height: Pixels,
1461 gutter_dimensions: &GutterDimensions,
1462 gutter_settings: crate::editor_settings::Gutter,
1463 scroll_pixel_position: gpui::Point<Pixels>,
1464 gutter_hitbox: &Hitbox,
1465 window: &mut Window,
1466 cx: &mut App,
1467 ) {
1468 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1469 if let Some(crease_toggle) = crease_toggle {
1470 debug_assert!(gutter_settings.folds);
1471 let available_space = size(
1472 AvailableSpace::MinContent,
1473 AvailableSpace::Definite(line_height * 0.55),
1474 );
1475 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1476
1477 let position = point(
1478 gutter_dimensions.width - gutter_dimensions.right_padding,
1479 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1480 );
1481 let centering_offset = point(
1482 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1483 (line_height - crease_toggle_size.height) / 2.,
1484 );
1485 let origin = gutter_hitbox.origin + position + centering_offset;
1486 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1487 }
1488 }
1489 }
1490
1491 #[allow(clippy::too_many_arguments)]
1492 fn prepaint_crease_trailers(
1493 &self,
1494 trailers: Vec<Option<AnyElement>>,
1495 lines: &[LineWithInvisibles],
1496 line_height: Pixels,
1497 content_origin: gpui::Point<Pixels>,
1498 scroll_pixel_position: gpui::Point<Pixels>,
1499 em_width: Pixels,
1500 window: &mut Window,
1501 cx: &mut App,
1502 ) -> Vec<Option<CreaseTrailerLayout>> {
1503 trailers
1504 .into_iter()
1505 .enumerate()
1506 .map(|(ix, element)| {
1507 let mut element = element?;
1508 let available_space = size(
1509 AvailableSpace::MinContent,
1510 AvailableSpace::Definite(line_height),
1511 );
1512 let size = element.layout_as_root(available_space, window, cx);
1513
1514 let line = &lines[ix];
1515 let padding = if line.width == Pixels::ZERO {
1516 Pixels::ZERO
1517 } else {
1518 4. * em_width
1519 };
1520 let position = point(
1521 scroll_pixel_position.x + line.width + padding,
1522 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1523 );
1524 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1525 let origin = content_origin + position + centering_offset;
1526 element.prepaint_as_root(origin, available_space, window, cx);
1527 Some(CreaseTrailerLayout {
1528 element,
1529 bounds: Bounds::new(origin, size),
1530 })
1531 })
1532 .collect()
1533 }
1534
1535 // Folds contained in a hunk are ignored apart from shrinking visual size
1536 // If a fold contains any hunks then that fold line is marked as modified
1537 fn layout_gutter_diff_hunks(
1538 &self,
1539 line_height: Pixels,
1540 gutter_hitbox: &Hitbox,
1541 display_rows: Range<DisplayRow>,
1542 snapshot: &EditorSnapshot,
1543 window: &mut Window,
1544 cx: &mut App,
1545 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1546 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1547 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1548
1549 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1550 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1551
1552 for hunk in snapshot
1553 .buffer_snapshot
1554 .diff_hunks_in_range(buffer_start..buffer_end)
1555 {
1556 if folded_buffers.contains(&hunk.buffer_id) {
1557 continue;
1558 }
1559
1560 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1561 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1562
1563 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1564 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1565
1566 let display_hunk = if hunk_display_start.column() != 0 {
1567 DisplayDiffHunk::Folded {
1568 display_row: hunk_display_start.row(),
1569 }
1570 } else {
1571 let mut end_row = hunk_display_end.row();
1572 if hunk_display_end.column() > 0 {
1573 end_row.0 += 1;
1574 }
1575 DisplayDiffHunk::Unfolded {
1576 status: hunk.status(),
1577 diff_base_byte_range: hunk.diff_base_byte_range,
1578 display_row_range: hunk_display_start.row()..end_row,
1579 multi_buffer_range: Anchor::range_in_buffer(
1580 hunk.excerpt_id,
1581 hunk.buffer_id,
1582 hunk.buffer_range,
1583 ),
1584 }
1585 };
1586
1587 display_hunks.push((display_hunk, None));
1588 }
1589
1590 let git_gutter_setting = ProjectSettings::get_global(cx)
1591 .git
1592 .git_gutter
1593 .unwrap_or_default();
1594 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1595 for (hunk, hitbox) in &mut display_hunks {
1596 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1597 let hunk_bounds =
1598 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1599 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1600 }
1601 }
1602 }
1603
1604 display_hunks
1605 }
1606
1607 #[allow(clippy::too_many_arguments)]
1608 fn layout_inline_blame(
1609 &self,
1610 display_row: DisplayRow,
1611 row_info: &RowInfo,
1612 line_layout: &LineWithInvisibles,
1613 crease_trailer: Option<&CreaseTrailerLayout>,
1614 em_width: Pixels,
1615 content_origin: gpui::Point<Pixels>,
1616 scroll_pixel_position: gpui::Point<Pixels>,
1617 line_height: Pixels,
1618 window: &mut Window,
1619 cx: &mut App,
1620 ) -> Option<AnyElement> {
1621 if !self
1622 .editor
1623 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1624 {
1625 return None;
1626 }
1627
1628 let workspace = self
1629 .editor
1630 .read(cx)
1631 .workspace
1632 .as_ref()
1633 .map(|(w, _)| w.clone());
1634
1635 let editor = self.editor.read(cx);
1636 let blame = editor.blame.clone()?;
1637 let padding = {
1638 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1639 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1640
1641 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1642
1643 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1644 match &inline_completion.completion {
1645 InlineCompletion::Edit {
1646 display_mode: EditDisplayMode::TabAccept,
1647 ..
1648 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1649 _ => {}
1650 }
1651 }
1652
1653 padding * em_width
1654 };
1655
1656 let blame_entry = blame
1657 .update(cx, |blame, cx| {
1658 blame.blame_for_rows(&[*row_info], cx).next()
1659 })
1660 .flatten()?;
1661
1662 let mut element =
1663 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1664
1665 let start_y = content_origin.y
1666 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1667
1668 let start_x = {
1669 let line_end = if let Some(crease_trailer) = crease_trailer {
1670 crease_trailer.bounds.right()
1671 } else {
1672 content_origin.x - scroll_pixel_position.x + line_layout.width
1673 };
1674
1675 let padded_line_end = line_end + padding;
1676
1677 let min_column_in_pixels = ProjectSettings::get_global(cx)
1678 .git
1679 .inline_blame
1680 .and_then(|settings| settings.min_column)
1681 .map(|col| self.column_pixels(col as usize, window, cx))
1682 .unwrap_or(px(0.));
1683 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1684
1685 cmp::max(padded_line_end, min_start)
1686 };
1687
1688 let absolute_offset = point(start_x, start_y);
1689 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1690
1691 Some(element)
1692 }
1693
1694 #[allow(clippy::too_many_arguments)]
1695 fn layout_blame_entries(
1696 &self,
1697 buffer_rows: &[RowInfo],
1698 em_width: Pixels,
1699 scroll_position: gpui::Point<f32>,
1700 line_height: Pixels,
1701 gutter_hitbox: &Hitbox,
1702 max_width: Option<Pixels>,
1703 window: &mut Window,
1704 cx: &mut App,
1705 ) -> Option<Vec<AnyElement>> {
1706 if !self
1707 .editor
1708 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1709 {
1710 return None;
1711 }
1712
1713 let blame = self.editor.read(cx).blame.clone()?;
1714 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1715 blame.blame_for_rows(buffer_rows, cx).collect()
1716 });
1717
1718 let width = if let Some(max_width) = max_width {
1719 AvailableSpace::Definite(max_width)
1720 } else {
1721 AvailableSpace::MaxContent
1722 };
1723 let scroll_top = scroll_position.y * line_height;
1724 let start_x = em_width;
1725
1726 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1727
1728 let shaped_lines = blamed_rows
1729 .into_iter()
1730 .enumerate()
1731 .flat_map(|(ix, blame_entry)| {
1732 if let Some(blame_entry) = blame_entry {
1733 let mut element = render_blame_entry(
1734 ix,
1735 &blame,
1736 blame_entry,
1737 &self.style,
1738 &mut last_used_color,
1739 self.editor.clone(),
1740 cx,
1741 );
1742
1743 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1744 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1745
1746 element.prepaint_as_root(
1747 absolute_offset,
1748 size(width, AvailableSpace::MinContent),
1749 window,
1750 cx,
1751 );
1752
1753 Some(element)
1754 } else {
1755 None
1756 }
1757 })
1758 .collect();
1759
1760 Some(shaped_lines)
1761 }
1762
1763 #[allow(clippy::too_many_arguments)]
1764 fn layout_indent_guides(
1765 &self,
1766 content_origin: gpui::Point<Pixels>,
1767 text_origin: gpui::Point<Pixels>,
1768 visible_buffer_range: Range<MultiBufferRow>,
1769 scroll_pixel_position: gpui::Point<Pixels>,
1770 line_height: Pixels,
1771 snapshot: &DisplaySnapshot,
1772 window: &mut Window,
1773 cx: &mut App,
1774 ) -> Option<Vec<IndentGuideLayout>> {
1775 let indent_guides = self.editor.update(cx, |editor, cx| {
1776 editor.indent_guides(visible_buffer_range, snapshot, cx)
1777 })?;
1778
1779 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1780 editor
1781 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1782 .unwrap_or_default()
1783 });
1784
1785 Some(
1786 indent_guides
1787 .into_iter()
1788 .enumerate()
1789 .filter_map(|(i, indent_guide)| {
1790 let single_indent_width =
1791 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1792 let total_width = single_indent_width * indent_guide.depth as f32;
1793 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1794 if start_x >= text_origin.x {
1795 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1796 indent_guide.start_row..indent_guide.end_row,
1797 line_height,
1798 snapshot,
1799 );
1800
1801 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1802
1803 Some(IndentGuideLayout {
1804 origin: point(start_x, start_y),
1805 length,
1806 single_indent_width,
1807 depth: indent_guide.depth,
1808 active: active_indent_guide_indices.contains(&i),
1809 settings: indent_guide.settings,
1810 })
1811 } else {
1812 None
1813 }
1814 })
1815 .collect(),
1816 )
1817 }
1818
1819 fn calculate_indent_guide_bounds(
1820 row_range: Range<MultiBufferRow>,
1821 line_height: Pixels,
1822 snapshot: &DisplaySnapshot,
1823 ) -> (gpui::Pixels, gpui::Pixels) {
1824 let start_point = Point::new(row_range.start.0, 0);
1825 let end_point = Point::new(row_range.end.0, 0);
1826
1827 let row_range = start_point.to_display_point(snapshot).row()
1828 ..end_point.to_display_point(snapshot).row();
1829
1830 let mut prev_line = start_point;
1831 prev_line.row = prev_line.row.saturating_sub(1);
1832 let prev_line = prev_line.to_display_point(snapshot).row();
1833
1834 let mut cons_line = end_point;
1835 cons_line.row += 1;
1836 let cons_line = cons_line.to_display_point(snapshot).row();
1837
1838 let mut offset_y = row_range.start.0 as f32 * line_height;
1839 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1840
1841 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1842 if row_range.end == cons_line {
1843 length += line_height;
1844 }
1845
1846 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1847 // we want to extend the indent guide to the start of the block.
1848 let mut block_height = 0;
1849 let mut block_offset = 0;
1850 let mut found_excerpt_header = false;
1851 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1852 if matches!(block, Block::ExcerptBoundary { .. }) {
1853 found_excerpt_header = true;
1854 break;
1855 }
1856 block_offset += block.height();
1857 block_height += block.height();
1858 }
1859 if !found_excerpt_header {
1860 offset_y -= block_offset as f32 * line_height;
1861 length += block_height as f32 * line_height;
1862 }
1863
1864 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1865 // we want to ensure that the indent guide stops before the excerpt header.
1866 let mut block_height = 0;
1867 let mut found_excerpt_header = false;
1868 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1869 if matches!(block, Block::ExcerptBoundary { .. }) {
1870 found_excerpt_header = true;
1871 }
1872 block_height += block.height();
1873 }
1874 if found_excerpt_header {
1875 length -= block_height as f32 * line_height;
1876 }
1877
1878 (offset_y, length)
1879 }
1880
1881 #[allow(clippy::too_many_arguments)]
1882 fn layout_run_indicators(
1883 &self,
1884 line_height: Pixels,
1885 range: Range<DisplayRow>,
1886 scroll_pixel_position: gpui::Point<Pixels>,
1887 gutter_dimensions: &GutterDimensions,
1888 gutter_hitbox: &Hitbox,
1889 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1890 snapshot: &EditorSnapshot,
1891 window: &mut Window,
1892 cx: &mut App,
1893 ) -> Vec<AnyElement> {
1894 self.editor.update(cx, |editor, cx| {
1895 let active_task_indicator_row =
1896 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1897 deployed_from_indicator,
1898 actions,
1899 ..
1900 })) = editor.context_menu.borrow().as_ref()
1901 {
1902 actions
1903 .tasks
1904 .as_ref()
1905 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1906 .or(*deployed_from_indicator)
1907 } else {
1908 None
1909 };
1910
1911 let offset_range_start = snapshot
1912 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1913 .to_offset(&snapshot.buffer_snapshot);
1914 let offset_range_end = snapshot
1915 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1916 .to_offset(&snapshot.buffer_snapshot);
1917
1918 editor
1919 .tasks
1920 .iter()
1921 .filter_map(|(_, tasks)| {
1922 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1923 return None;
1924 }
1925 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1926 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1927 let buffer_folded = snapshot
1928 .buffer_snapshot
1929 .buffer_line_for_row(multibuffer_row)
1930 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1931 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1932 .unwrap_or(false);
1933 if buffer_folded {
1934 return None;
1935 }
1936
1937 if snapshot.is_line_folded(multibuffer_row) {
1938 // Skip folded indicators, unless it's the starting line of a fold.
1939 if multibuffer_row
1940 .0
1941 .checked_sub(1)
1942 .map_or(false, |previous_row| {
1943 snapshot.is_line_folded(MultiBufferRow(previous_row))
1944 })
1945 {
1946 return None;
1947 }
1948 }
1949 let display_row = multibuffer_point.to_display_point(snapshot).row();
1950 let button = editor.render_run_indicator(
1951 &self.style,
1952 Some(display_row) == active_task_indicator_row,
1953 display_row,
1954 cx,
1955 );
1956
1957 let button = prepaint_gutter_button(
1958 button,
1959 display_row,
1960 line_height,
1961 gutter_dimensions,
1962 scroll_pixel_position,
1963 gutter_hitbox,
1964 rows_with_hunk_bounds,
1965 window,
1966 cx,
1967 );
1968 Some(button)
1969 })
1970 .collect_vec()
1971 })
1972 }
1973
1974 #[allow(clippy::too_many_arguments)]
1975 fn layout_code_actions_indicator(
1976 &self,
1977 line_height: Pixels,
1978 newest_selection_head: DisplayPoint,
1979 scroll_pixel_position: gpui::Point<Pixels>,
1980 gutter_dimensions: &GutterDimensions,
1981 gutter_hitbox: &Hitbox,
1982 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1983 window: &mut Window,
1984 cx: &mut App,
1985 ) -> Option<AnyElement> {
1986 let mut active = false;
1987 let mut button = None;
1988 let row = newest_selection_head.row();
1989 self.editor.update(cx, |editor, cx| {
1990 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1991 deployed_from_indicator,
1992 ..
1993 })) = editor.context_menu.borrow().as_ref()
1994 {
1995 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1996 };
1997 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1998 });
1999
2000 let button = prepaint_gutter_button(
2001 button?,
2002 row,
2003 line_height,
2004 gutter_dimensions,
2005 scroll_pixel_position,
2006 gutter_hitbox,
2007 rows_with_hunk_bounds,
2008 window,
2009 cx,
2010 );
2011
2012 Some(button)
2013 }
2014
2015 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2016 if let Some(index) = participant_index {
2017 cx.theme().players().color_for_participant(index.0)
2018 } else {
2019 cx.theme().players().absent()
2020 }
2021 }
2022
2023 fn calculate_relative_line_numbers(
2024 &self,
2025 snapshot: &EditorSnapshot,
2026 rows: &Range<DisplayRow>,
2027 relative_to: Option<DisplayRow>,
2028 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2029 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2030 let Some(relative_to) = relative_to else {
2031 return relative_rows;
2032 };
2033
2034 let start = rows.start.min(relative_to);
2035 let end = rows.end.max(relative_to);
2036
2037 let buffer_rows = snapshot
2038 .row_infos(start)
2039 .take(1 + end.minus(start) as usize)
2040 .collect::<Vec<_>>();
2041
2042 let head_idx = relative_to.minus(start);
2043 let mut delta = 1;
2044 let mut i = head_idx + 1;
2045 while i < buffer_rows.len() as u32 {
2046 if buffer_rows[i as usize].buffer_row.is_some() {
2047 if rows.contains(&DisplayRow(i + start.0)) {
2048 relative_rows.insert(DisplayRow(i + start.0), delta);
2049 }
2050 delta += 1;
2051 }
2052 i += 1;
2053 }
2054 delta = 1;
2055 i = head_idx.min(buffer_rows.len() as u32 - 1);
2056 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2057 i -= 1;
2058 }
2059
2060 while i > 0 {
2061 i -= 1;
2062 if buffer_rows[i as usize].buffer_row.is_some() {
2063 if rows.contains(&DisplayRow(i + start.0)) {
2064 relative_rows.insert(DisplayRow(i + start.0), delta);
2065 }
2066 delta += 1;
2067 }
2068 }
2069
2070 relative_rows
2071 }
2072
2073 #[allow(clippy::too_many_arguments)]
2074 fn layout_line_numbers(
2075 &self,
2076 gutter_hitbox: Option<&Hitbox>,
2077 gutter_dimensions: GutterDimensions,
2078 line_height: Pixels,
2079 scroll_position: gpui::Point<f32>,
2080 rows: Range<DisplayRow>,
2081 buffer_rows: &[RowInfo],
2082 newest_selection_head: Option<DisplayPoint>,
2083 snapshot: &EditorSnapshot,
2084 window: &mut Window,
2085 cx: &mut App,
2086 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2087 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2088 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2089 });
2090 if !include_line_numbers {
2091 return Arc::default();
2092 }
2093
2094 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2095 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2096 let newest = editor.selections.newest::<Point>(cx);
2097 SelectionLayout::new(
2098 newest,
2099 editor.selections.line_mode,
2100 editor.cursor_shape,
2101 &snapshot.display_snapshot,
2102 true,
2103 true,
2104 None,
2105 )
2106 .head
2107 });
2108 let is_relative = editor.should_use_relative_line_numbers(cx);
2109 (newest_selection_head, is_relative)
2110 });
2111
2112 let relative_to = if is_relative {
2113 Some(newest_selection_head.row())
2114 } else {
2115 None
2116 };
2117 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2118 let mut line_number = String::new();
2119 let line_numbers = buffer_rows
2120 .into_iter()
2121 .enumerate()
2122 .flat_map(|(ix, row_info)| {
2123 let display_row = DisplayRow(rows.start.0 + ix as u32);
2124 line_number.clear();
2125 let non_relative_number = row_info.buffer_row? + 1;
2126 let number = relative_rows
2127 .get(&display_row)
2128 .unwrap_or(&non_relative_number);
2129 write!(&mut line_number, "{number}").unwrap();
2130 if matches!(row_info.diff_status, Some(DiffHunkStatus::Removed(_))) {
2131 return None;
2132 }
2133
2134 let color = cx.theme().colors().editor_line_number;
2135 let shaped_line = self
2136 .shape_line_number(SharedString::from(&line_number), color, window)
2137 .log_err()?;
2138 let scroll_top = scroll_position.y * line_height;
2139 let line_origin = gutter_hitbox.map(|hitbox| {
2140 hitbox.origin
2141 + point(
2142 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2143 ix as f32 * line_height - (scroll_top % line_height),
2144 )
2145 });
2146
2147 #[cfg(not(test))]
2148 let hitbox = line_origin.map(|line_origin| {
2149 window.insert_hitbox(
2150 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2151 false,
2152 )
2153 });
2154 #[cfg(test)]
2155 let hitbox = {
2156 let _ = line_origin;
2157 None
2158 };
2159
2160 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2161 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2162 let line_number = LineNumberLayout {
2163 shaped_line,
2164 hitbox,
2165 display_row,
2166 };
2167 Some((multi_buffer_row, line_number))
2168 })
2169 .collect();
2170 Arc::new(line_numbers)
2171 }
2172
2173 fn layout_crease_toggles(
2174 &self,
2175 rows: Range<DisplayRow>,
2176 row_infos: &[RowInfo],
2177 active_rows: &BTreeMap<DisplayRow, bool>,
2178 snapshot: &EditorSnapshot,
2179 window: &mut Window,
2180 cx: &mut App,
2181 ) -> Vec<Option<AnyElement>> {
2182 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2183 && snapshot.mode == EditorMode::Full
2184 && self.editor.read(cx).is_singleton(cx);
2185 if include_fold_statuses {
2186 row_infos
2187 .into_iter()
2188 .enumerate()
2189 .map(|(ix, info)| {
2190 let row = info.multibuffer_row?;
2191 let display_row = DisplayRow(rows.start.0 + ix as u32);
2192 let active = active_rows.contains_key(&display_row);
2193
2194 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2195 })
2196 .collect()
2197 } else {
2198 Vec::new()
2199 }
2200 }
2201
2202 fn layout_crease_trailers(
2203 &self,
2204 buffer_rows: impl IntoIterator<Item = RowInfo>,
2205 snapshot: &EditorSnapshot,
2206 window: &mut Window,
2207 cx: &mut App,
2208 ) -> Vec<Option<AnyElement>> {
2209 buffer_rows
2210 .into_iter()
2211 .map(|row_info| {
2212 if let Some(row) = row_info.multibuffer_row {
2213 snapshot.render_crease_trailer(row, window, cx)
2214 } else {
2215 None
2216 }
2217 })
2218 .collect()
2219 }
2220
2221 fn layout_lines(
2222 rows: Range<DisplayRow>,
2223 snapshot: &EditorSnapshot,
2224 style: &EditorStyle,
2225 editor_width: Pixels,
2226 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2227 window: &mut Window,
2228 cx: &mut App,
2229 ) -> Vec<LineWithInvisibles> {
2230 if rows.start >= rows.end {
2231 return Vec::new();
2232 }
2233
2234 // Show the placeholder when the editor is empty
2235 if snapshot.is_empty() {
2236 let font_size = style.text.font_size.to_pixels(window.rem_size());
2237 let placeholder_color = cx.theme().colors().text_placeholder;
2238 let placeholder_text = snapshot.placeholder_text();
2239
2240 let placeholder_lines = placeholder_text
2241 .as_ref()
2242 .map_or("", AsRef::as_ref)
2243 .split('\n')
2244 .skip(rows.start.0 as usize)
2245 .chain(iter::repeat(""))
2246 .take(rows.len());
2247 placeholder_lines
2248 .filter_map(move |line| {
2249 let run = TextRun {
2250 len: line.len(),
2251 font: style.text.font(),
2252 color: placeholder_color,
2253 background_color: None,
2254 underline: Default::default(),
2255 strikethrough: None,
2256 };
2257 window
2258 .text_system()
2259 .shape_line(line.to_string().into(), font_size, &[run])
2260 .log_err()
2261 })
2262 .map(|line| LineWithInvisibles {
2263 width: line.width,
2264 len: line.len,
2265 fragments: smallvec![LineFragment::Text(line)],
2266 invisibles: Vec::new(),
2267 font_size,
2268 })
2269 .collect()
2270 } else {
2271 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2272 LineWithInvisibles::from_chunks(
2273 chunks,
2274 &style,
2275 MAX_LINE_LEN,
2276 rows.len(),
2277 snapshot.mode,
2278 editor_width,
2279 is_row_soft_wrapped,
2280 window,
2281 cx,
2282 )
2283 }
2284 }
2285
2286 #[allow(clippy::too_many_arguments)]
2287 fn prepaint_lines(
2288 &self,
2289 start_row: DisplayRow,
2290 line_layouts: &mut [LineWithInvisibles],
2291 line_height: Pixels,
2292 scroll_pixel_position: gpui::Point<Pixels>,
2293 content_origin: gpui::Point<Pixels>,
2294 window: &mut Window,
2295 cx: &mut App,
2296 ) -> SmallVec<[AnyElement; 1]> {
2297 let mut line_elements = SmallVec::new();
2298 for (ix, line) in line_layouts.iter_mut().enumerate() {
2299 let row = start_row + DisplayRow(ix as u32);
2300 line.prepaint(
2301 line_height,
2302 scroll_pixel_position,
2303 row,
2304 content_origin,
2305 &mut line_elements,
2306 window,
2307 cx,
2308 );
2309 }
2310 line_elements
2311 }
2312
2313 #[allow(clippy::too_many_arguments)]
2314 fn render_block(
2315 &self,
2316 block: &Block,
2317 available_width: AvailableSpace,
2318 block_id: BlockId,
2319 block_row_start: DisplayRow,
2320 snapshot: &EditorSnapshot,
2321 text_x: Pixels,
2322 rows: &Range<DisplayRow>,
2323 line_layouts: &[LineWithInvisibles],
2324 gutter_dimensions: &GutterDimensions,
2325 line_height: Pixels,
2326 em_width: Pixels,
2327 text_hitbox: &Hitbox,
2328 editor_width: Pixels,
2329 scroll_width: &mut Pixels,
2330 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2331 selections: &[Selection<Point>],
2332 selected_buffer_ids: &Vec<BufferId>,
2333 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2334 sticky_header_excerpt_id: Option<ExcerptId>,
2335 window: &mut Window,
2336 cx: &mut App,
2337 ) -> (AnyElement, Size<Pixels>) {
2338 let mut element = match block {
2339 Block::Custom(block) => {
2340 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2341 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2342 let align_to = block_start.to_display_point(snapshot);
2343 let anchor_x = text_x
2344 + if rows.contains(&align_to.row()) {
2345 line_layouts[align_to.row().minus(rows.start) as usize]
2346 .x_for_index(align_to.column() as usize)
2347 } else {
2348 layout_line(
2349 align_to.row(),
2350 snapshot,
2351 &self.style,
2352 editor_width,
2353 is_row_soft_wrapped,
2354 window,
2355 cx,
2356 )
2357 .x_for_index(align_to.column() as usize)
2358 };
2359
2360 let selected = selections
2361 .binary_search_by(|selection| {
2362 if selection.end <= block_start {
2363 Ordering::Less
2364 } else if selection.start >= block_end {
2365 Ordering::Greater
2366 } else {
2367 Ordering::Equal
2368 }
2369 })
2370 .is_ok();
2371
2372 div()
2373 .size_full()
2374 .child(block.render(&mut BlockContext {
2375 window,
2376 app: cx,
2377 anchor_x,
2378 gutter_dimensions,
2379 line_height,
2380 em_width,
2381 block_id,
2382 selected,
2383 max_width: text_hitbox.size.width.max(*scroll_width),
2384 editor_style: &self.style,
2385 }))
2386 .into_any()
2387 }
2388
2389 Block::FoldedBuffer {
2390 first_excerpt,
2391 prev_excerpt,
2392 show_excerpt_controls,
2393 height,
2394 } => {
2395 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2396 let mut result = v_flex().id(block_id).w_full();
2397
2398 if let Some(prev_excerpt) = prev_excerpt {
2399 if *show_excerpt_controls {
2400 result = result.child(self.render_expand_excerpt_control(
2401 block_id,
2402 ExpandExcerptDirection::Down,
2403 prev_excerpt.id,
2404 gutter_dimensions,
2405 window,
2406 cx,
2407 ));
2408 }
2409 }
2410
2411 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2412 result
2413 .child(self.render_buffer_header(
2414 first_excerpt,
2415 true,
2416 selected,
2417 jump_data,
2418 window,
2419 cx,
2420 ))
2421 .into_any_element()
2422 }
2423
2424 Block::ExcerptBoundary {
2425 prev_excerpt,
2426 next_excerpt,
2427 show_excerpt_controls,
2428 height,
2429 starts_new_buffer,
2430 } => {
2431 let color = cx.theme().colors().clone();
2432 let mut result = v_flex().id(block_id).w_full();
2433
2434 if let Some(prev_excerpt) = prev_excerpt {
2435 if *show_excerpt_controls {
2436 result = result.child(self.render_expand_excerpt_control(
2437 block_id,
2438 ExpandExcerptDirection::Down,
2439 prev_excerpt.id,
2440 gutter_dimensions,
2441 window,
2442 cx,
2443 ));
2444 }
2445 }
2446
2447 if let Some(next_excerpt) = next_excerpt {
2448 let jump_data =
2449 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2450
2451 if *starts_new_buffer {
2452 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2453 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2454
2455 result = result.child(self.render_buffer_header(
2456 next_excerpt,
2457 false,
2458 selected,
2459 jump_data,
2460 window,
2461 cx,
2462 ));
2463 } else {
2464 result = result
2465 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2466 }
2467
2468 if *show_excerpt_controls {
2469 result = result.child(self.render_expand_excerpt_control(
2470 block_id,
2471 ExpandExcerptDirection::Up,
2472 next_excerpt.id,
2473 gutter_dimensions,
2474 window,
2475 cx,
2476 ));
2477 }
2478 } else {
2479 if *show_excerpt_controls {
2480 result = result.child(
2481 h_flex()
2482 .relative()
2483 .child(
2484 div()
2485 .top(px(0.))
2486 .absolute()
2487 .w_full()
2488 .h_px()
2489 .bg(color.border_variant),
2490 )
2491 .child(self.render_expand_excerpt_control(
2492 block_id,
2493 ExpandExcerptDirection::Up,
2494 next_excerpt.id,
2495 gutter_dimensions,
2496 window,
2497 cx,
2498 )),
2499 );
2500 }
2501 };
2502 }
2503
2504 result.into_any()
2505 }
2506 };
2507
2508 // Discover the element's content height, then round up to the nearest multiple of line height.
2509 let preliminary_size = element.layout_as_root(
2510 size(available_width, AvailableSpace::MinContent),
2511 window,
2512 cx,
2513 );
2514 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2515 let final_size = if preliminary_size.height == quantized_height {
2516 preliminary_size
2517 } else {
2518 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2519 };
2520
2521 if let BlockId::Custom(custom_block_id) = block_id {
2522 if block.height() > 0 {
2523 let element_height_in_lines =
2524 ((final_size.height / line_height).ceil() as u32).max(1);
2525 if element_height_in_lines != block.height() {
2526 resized_blocks.insert(custom_block_id, element_height_in_lines);
2527 }
2528 }
2529 }
2530
2531 (element, final_size)
2532 }
2533
2534 fn render_buffer_header(
2535 &self,
2536 for_excerpt: &ExcerptInfo,
2537 is_folded: bool,
2538 is_selected: bool,
2539 jump_data: JumpData,
2540 window: &mut Window,
2541 cx: &mut App,
2542 ) -> Div {
2543 let include_root = self
2544 .editor
2545 .read(cx)
2546 .project
2547 .as_ref()
2548 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2549 .unwrap_or_default();
2550 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2551 let filename = path
2552 .as_ref()
2553 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2554 let parent_path = path.as_ref().and_then(|path| {
2555 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2556 });
2557 let focus_handle = self.editor.focus_handle(cx);
2558 let colors = cx.theme().colors();
2559
2560 div()
2561 .px_2()
2562 .pt_2()
2563 .w_full()
2564 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2565 .child(
2566 h_flex()
2567 .size_full()
2568 .gap_2()
2569 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2570 .pl_0p5()
2571 .pr_5()
2572 .rounded_md()
2573 .shadow_md()
2574 .border_1()
2575 .map(|div| {
2576 let border_color = if is_selected && is_folded {
2577 colors.border_focused
2578 } else {
2579 colors.border
2580 };
2581 div.border_color(border_color)
2582 })
2583 .bg(colors.editor_subheader_background)
2584 .hover(|style| style.bg(colors.element_hover))
2585 .map(|header| {
2586 let editor = self.editor.clone();
2587 let buffer_id = for_excerpt.buffer_id;
2588 let toggle_chevron_icon =
2589 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2590 header.child(
2591 div()
2592 .hover(|style| style.bg(colors.element_selected))
2593 .rounded_sm()
2594 .child(
2595 ButtonLike::new("toggle-buffer-fold")
2596 .style(ui::ButtonStyle::Transparent)
2597 .size(ButtonSize::Large)
2598 .width(px(30.).into())
2599 .children(toggle_chevron_icon)
2600 .tooltip({
2601 let focus_handle = focus_handle.clone();
2602 move |window, cx| {
2603 Tooltip::for_action_in(
2604 "Toggle Excerpt Fold",
2605 &ToggleFold,
2606 &focus_handle,
2607 window,
2608 cx,
2609 )
2610 }
2611 })
2612 .on_click(move |_, _, cx| {
2613 if is_folded {
2614 editor.update(cx, |editor, cx| {
2615 editor.unfold_buffer(buffer_id, cx);
2616 });
2617 } else {
2618 editor.update(cx, |editor, cx| {
2619 editor.fold_buffer(buffer_id, cx);
2620 });
2621 }
2622 }),
2623 ),
2624 )
2625 })
2626 .children(
2627 self.editor
2628 .read(cx)
2629 .addons
2630 .values()
2631 .filter_map(|addon| {
2632 addon.render_buffer_header_controls(for_excerpt, window, cx)
2633 })
2634 .take(1),
2635 )
2636 .child(
2637 h_flex()
2638 .cursor_pointer()
2639 .id("path header block")
2640 .size_full()
2641 .justify_between()
2642 .child(
2643 h_flex()
2644 .gap_2()
2645 .child(
2646 filename
2647 .map(SharedString::from)
2648 .unwrap_or_else(|| "untitled".into()),
2649 )
2650 .when_some(parent_path, |then, path| {
2651 then.child(div().child(path).text_color(colors.text_muted))
2652 }),
2653 )
2654 .when(is_selected, |el| {
2655 el.child(
2656 h_flex()
2657 .id("jump-to-file-button")
2658 .gap_2p5()
2659 .child(Label::new("Jump To File"))
2660 .children(
2661 KeyBinding::for_action_in(
2662 &OpenExcerpts,
2663 &focus_handle,
2664 window,
2665 cx,
2666 )
2667 .map(|binding| binding.into_any_element()),
2668 ),
2669 )
2670 })
2671 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2672 .on_click(window.listener_for(&self.editor, {
2673 move |editor, e: &ClickEvent, window, cx| {
2674 editor.open_excerpts_common(
2675 Some(jump_data.clone()),
2676 e.down.modifiers.secondary(),
2677 window,
2678 cx,
2679 );
2680 }
2681 })),
2682 ),
2683 )
2684 }
2685
2686 fn render_expand_excerpt_control(
2687 &self,
2688 block_id: BlockId,
2689 direction: ExpandExcerptDirection,
2690 excerpt_id: ExcerptId,
2691 gutter_dimensions: &GutterDimensions,
2692 window: &Window,
2693 cx: &mut App,
2694 ) -> impl IntoElement {
2695 let color = cx.theme().colors().clone();
2696 let hover_color = color.border_variant.opacity(0.5);
2697 let focus_handle = self.editor.focus_handle(cx).clone();
2698
2699 let icon_offset =
2700 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2701 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2702 let group_name = if direction == ExpandExcerptDirection::Down {
2703 "expand-down"
2704 } else {
2705 "expand-up"
2706 };
2707
2708 let expand_area = |id: SharedString| {
2709 h_flex()
2710 .id(id)
2711 .w_full()
2712 .cursor_pointer()
2713 .block_mouse_down()
2714 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2715 .hover(|style| style.bg(hover_color))
2716 .tooltip({
2717 let focus_handle = focus_handle.clone();
2718 move |window, cx| {
2719 Tooltip::for_action_in(
2720 "Expand Excerpt",
2721 &ExpandExcerpts { lines: 0 },
2722 &focus_handle,
2723 window,
2724 cx,
2725 )
2726 }
2727 })
2728 };
2729
2730 expand_area(
2731 format!(
2732 "block-{}-{}",
2733 block_id,
2734 if direction == ExpandExcerptDirection::Down {
2735 "down"
2736 } else {
2737 "up"
2738 }
2739 )
2740 .into(),
2741 )
2742 .group(group_name)
2743 .child(
2744 h_flex()
2745 .w(icon_offset)
2746 .h(header_height)
2747 .flex_none()
2748 .justify_end()
2749 .child(
2750 ButtonLike::new("expand-icon")
2751 .style(ButtonStyle::Transparent)
2752 .child(
2753 svg()
2754 .path(if direction == ExpandExcerptDirection::Down {
2755 IconName::ArrowDownFromLine.path()
2756 } else {
2757 IconName::ArrowUpFromLine.path()
2758 })
2759 .size(IconSize::XSmall.rems())
2760 .text_color(cx.theme().colors().editor_line_number)
2761 .group_hover(group_name, |style| {
2762 style.text_color(cx.theme().colors().editor_active_line_number)
2763 }),
2764 ),
2765 ),
2766 )
2767 .on_click(window.listener_for(&self.editor, {
2768 move |editor, _, _, cx| {
2769 editor.expand_excerpt(excerpt_id, direction, cx);
2770 cx.stop_propagation();
2771 }
2772 }))
2773 }
2774
2775 #[allow(clippy::too_many_arguments)]
2776 fn render_blocks(
2777 &self,
2778 rows: Range<DisplayRow>,
2779 snapshot: &EditorSnapshot,
2780 hitbox: &Hitbox,
2781 text_hitbox: &Hitbox,
2782 editor_width: Pixels,
2783 scroll_width: &mut Pixels,
2784 gutter_dimensions: &GutterDimensions,
2785 em_width: Pixels,
2786 text_x: Pixels,
2787 line_height: Pixels,
2788 line_layouts: &[LineWithInvisibles],
2789 selections: &[Selection<Point>],
2790 selected_buffer_ids: &Vec<BufferId>,
2791 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2792 sticky_header_excerpt_id: Option<ExcerptId>,
2793 window: &mut Window,
2794 cx: &mut App,
2795 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2796 let (fixed_blocks, non_fixed_blocks) = snapshot
2797 .blocks_in_range(rows.clone())
2798 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2799
2800 let mut focused_block = self
2801 .editor
2802 .update(cx, |editor, _| editor.take_focused_block());
2803 let mut fixed_block_max_width = Pixels::ZERO;
2804 let mut blocks = Vec::new();
2805 let mut resized_blocks = HashMap::default();
2806
2807 for (row, block) in fixed_blocks {
2808 let block_id = block.id();
2809
2810 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2811 focused_block = None;
2812 }
2813
2814 let (element, element_size) = self.render_block(
2815 block,
2816 AvailableSpace::MinContent,
2817 block_id,
2818 row,
2819 snapshot,
2820 text_x,
2821 &rows,
2822 line_layouts,
2823 gutter_dimensions,
2824 line_height,
2825 em_width,
2826 text_hitbox,
2827 editor_width,
2828 scroll_width,
2829 &mut resized_blocks,
2830 selections,
2831 selected_buffer_ids,
2832 is_row_soft_wrapped,
2833 sticky_header_excerpt_id,
2834 window,
2835 cx,
2836 );
2837 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2838 blocks.push(BlockLayout {
2839 id: block_id,
2840 row: Some(row),
2841 element,
2842 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2843 style: BlockStyle::Fixed,
2844 });
2845 }
2846
2847 for (row, block) in non_fixed_blocks {
2848 let style = block.style();
2849 let width = match style {
2850 BlockStyle::Sticky => hitbox.size.width,
2851 BlockStyle::Flex => hitbox
2852 .size
2853 .width
2854 .max(fixed_block_max_width)
2855 .max(gutter_dimensions.width + *scroll_width),
2856 BlockStyle::Fixed => unreachable!(),
2857 };
2858 let block_id = block.id();
2859
2860 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2861 focused_block = None;
2862 }
2863
2864 let (element, element_size) = self.render_block(
2865 block,
2866 width.into(),
2867 block_id,
2868 row,
2869 snapshot,
2870 text_x,
2871 &rows,
2872 line_layouts,
2873 gutter_dimensions,
2874 line_height,
2875 em_width,
2876 text_hitbox,
2877 editor_width,
2878 scroll_width,
2879 &mut resized_blocks,
2880 selections,
2881 selected_buffer_ids,
2882 is_row_soft_wrapped,
2883 sticky_header_excerpt_id,
2884 window,
2885 cx,
2886 );
2887
2888 blocks.push(BlockLayout {
2889 id: block_id,
2890 row: Some(row),
2891 element,
2892 available_space: size(width.into(), element_size.height.into()),
2893 style,
2894 });
2895 }
2896
2897 if let Some(focused_block) = focused_block {
2898 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2899 if focus_handle.is_focused(window) {
2900 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2901 let style = block.style();
2902 let width = match style {
2903 BlockStyle::Fixed => AvailableSpace::MinContent,
2904 BlockStyle::Flex => AvailableSpace::Definite(
2905 hitbox
2906 .size
2907 .width
2908 .max(fixed_block_max_width)
2909 .max(gutter_dimensions.width + *scroll_width),
2910 ),
2911 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2912 };
2913
2914 let (element, element_size) = self.render_block(
2915 &block,
2916 width,
2917 focused_block.id,
2918 rows.end,
2919 snapshot,
2920 text_x,
2921 &rows,
2922 line_layouts,
2923 gutter_dimensions,
2924 line_height,
2925 em_width,
2926 text_hitbox,
2927 editor_width,
2928 scroll_width,
2929 &mut resized_blocks,
2930 selections,
2931 selected_buffer_ids,
2932 is_row_soft_wrapped,
2933 sticky_header_excerpt_id,
2934 window,
2935 cx,
2936 );
2937
2938 blocks.push(BlockLayout {
2939 id: block.id(),
2940 row: None,
2941 element,
2942 available_space: size(width, element_size.height.into()),
2943 style,
2944 });
2945 }
2946 }
2947 }
2948 }
2949
2950 if resized_blocks.is_empty() {
2951 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2952 Ok(blocks)
2953 } else {
2954 Err(resized_blocks)
2955 }
2956 }
2957
2958 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2959 /// a restart of rendering for the editor based on the new sizes.
2960 #[allow(clippy::too_many_arguments)]
2961 fn layout_blocks(
2962 &self,
2963 blocks: &mut Vec<BlockLayout>,
2964 block_starts: &mut HashSet<DisplayRow>,
2965 hitbox: &Hitbox,
2966 line_height: Pixels,
2967 scroll_pixel_position: gpui::Point<Pixels>,
2968 window: &mut Window,
2969 cx: &mut App,
2970 ) {
2971 for block in blocks {
2972 let mut origin = if let Some(row) = block.row {
2973 block_starts.insert(row);
2974 hitbox.origin
2975 + point(
2976 Pixels::ZERO,
2977 row.as_f32() * line_height - scroll_pixel_position.y,
2978 )
2979 } else {
2980 // Position the block outside the visible area
2981 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2982 };
2983
2984 if !matches!(block.style, BlockStyle::Sticky) {
2985 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2986 }
2987
2988 let focus_handle =
2989 block
2990 .element
2991 .prepaint_as_root(origin, block.available_space, window, cx);
2992
2993 if let Some(focus_handle) = focus_handle {
2994 self.editor.update(cx, |editor, _cx| {
2995 editor.set_focused_block(FocusedBlock {
2996 id: block.id,
2997 focus_handle: focus_handle.downgrade(),
2998 });
2999 });
3000 }
3001 }
3002 }
3003
3004 #[allow(clippy::too_many_arguments)]
3005 fn layout_sticky_buffer_header(
3006 &self,
3007 StickyHeaderExcerpt {
3008 excerpt,
3009 next_excerpt_controls_present,
3010 next_buffer_row,
3011 }: StickyHeaderExcerpt<'_>,
3012 scroll_position: f32,
3013 line_height: Pixels,
3014 snapshot: &EditorSnapshot,
3015 hitbox: &Hitbox,
3016 selected_buffer_ids: &Vec<BufferId>,
3017 window: &mut Window,
3018 cx: &mut App,
3019 ) -> AnyElement {
3020 let jump_data = header_jump_data(
3021 snapshot,
3022 DisplayRow(scroll_position as u32),
3023 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3024 excerpt,
3025 );
3026
3027 let editor_bg_color = cx.theme().colors().editor_background;
3028
3029 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3030
3031 let mut header = v_flex()
3032 .relative()
3033 .child(
3034 div()
3035 .w(hitbox.bounds.size.width)
3036 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3037 .bg(linear_gradient(
3038 0.,
3039 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3040 linear_color_stop(editor_bg_color, 0.6),
3041 ))
3042 .absolute()
3043 .top_0(),
3044 )
3045 .child(
3046 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3047 .into_any_element(),
3048 )
3049 .into_any_element();
3050
3051 let mut origin = hitbox.origin;
3052
3053 if let Some(next_buffer_row) = next_buffer_row {
3054 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3055
3056 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3057
3058 if next_excerpt_controls_present {
3059 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3060 }
3061
3062 let offset = scroll_position - max_row as f32;
3063
3064 if offset > 0.0 {
3065 origin.y -= Pixels(offset) * line_height;
3066 }
3067 }
3068
3069 let size = size(
3070 AvailableSpace::Definite(hitbox.size.width),
3071 AvailableSpace::MinContent,
3072 );
3073
3074 header.prepaint_as_root(origin, size, window, cx);
3075
3076 header
3077 }
3078
3079 #[allow(clippy::too_many_arguments)]
3080 fn layout_cursor_popovers(
3081 &self,
3082 line_height: Pixels,
3083 text_hitbox: &Hitbox,
3084 content_origin: gpui::Point<Pixels>,
3085 start_row: DisplayRow,
3086 scroll_pixel_position: gpui::Point<Pixels>,
3087 line_layouts: &[LineWithInvisibles],
3088 cursor: DisplayPoint,
3089 cursor_point: Point,
3090 style: &EditorStyle,
3091 window: &mut Window,
3092 cx: &mut App,
3093 ) {
3094 let mut min_menu_height = Pixels::ZERO;
3095 let mut max_menu_height = Pixels::ZERO;
3096 let mut height_above_menu = Pixels::ZERO;
3097 let height_below_menu = Pixels::ZERO;
3098 let mut edit_prediction_popover_visible = false;
3099 let mut context_menu_visible = false;
3100
3101 {
3102 let editor = self.editor.read(cx);
3103 if editor
3104 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3105 {
3106 height_above_menu +=
3107 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3108 edit_prediction_popover_visible = true;
3109 }
3110
3111 if editor.context_menu_visible() {
3112 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3113 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3114 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3115 context_menu_visible = true;
3116 }
3117 }
3118 }
3119
3120 let visible = edit_prediction_popover_visible || context_menu_visible;
3121 if !visible {
3122 return;
3123 }
3124
3125 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3126 let target_position = content_origin
3127 + gpui::Point {
3128 x: cmp::max(
3129 px(0.),
3130 cursor_row_layout.x_for_index(cursor.column() as usize)
3131 - scroll_pixel_position.x,
3132 ),
3133 y: cmp::max(
3134 px(0.),
3135 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3136 ),
3137 };
3138
3139 let viewport_bounds =
3140 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3141 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3142 ..Default::default()
3143 });
3144
3145 let min_height = height_above_menu + min_menu_height + height_below_menu;
3146 let max_height = height_above_menu + max_menu_height + height_below_menu;
3147 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3148 target_position,
3149 line_height,
3150 min_height,
3151 max_height,
3152 text_hitbox,
3153 viewport_bounds,
3154 window,
3155 cx,
3156 |height, max_width_for_stable_x, y_flipped, window, cx| {
3157 // First layout the menu to get its size - others can be at least this wide.
3158 let context_menu = if context_menu_visible {
3159 let menu_height = if y_flipped {
3160 height - height_below_menu
3161 } else {
3162 height - height_above_menu
3163 };
3164 let mut element = self
3165 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3166 .expect("Visible context menu should always render.");
3167 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3168 Some((CursorPopoverType::CodeContextMenu, element, size))
3169 } else {
3170 None
3171 };
3172 let min_width = context_menu
3173 .as_ref()
3174 .map_or(px(0.), |(_, _, size)| size.width);
3175 let max_width = max_width_for_stable_x.max(
3176 context_menu
3177 .as_ref()
3178 .map_or(px(0.), |(_, _, size)| size.width),
3179 );
3180
3181 let edit_prediction = if edit_prediction_popover_visible {
3182 self.editor.update(cx, move |editor, cx| {
3183 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3184 let mut element = editor.render_edit_prediction_cursor_popover(
3185 min_width,
3186 max_width,
3187 cursor_point,
3188 style,
3189 accept_binding.keystroke(),
3190 window,
3191 cx,
3192 )?;
3193 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3194 Some((CursorPopoverType::EditPrediction, element, size))
3195 })
3196 } else {
3197 None
3198 };
3199 vec![edit_prediction, context_menu]
3200 .into_iter()
3201 .flatten()
3202 .collect::<Vec<_>>()
3203 },
3204 ) else {
3205 return;
3206 };
3207
3208 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3209 .iter()
3210 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3211 else {
3212 return;
3213 };
3214 let last_ix = laid_out_popovers.len() - 1;
3215 let menu_is_last = menu_ix == last_ix;
3216 let first_popover_bounds = laid_out_popovers[0].1;
3217 let last_popover_bounds = laid_out_popovers[last_ix].1;
3218
3219 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3220 // right, and otherwise it goes below or to the right.
3221 let mut target_bounds = Bounds::from_corners(
3222 first_popover_bounds.origin,
3223 last_popover_bounds.bottom_right(),
3224 );
3225 target_bounds.size.width = menu_bounds.size.width;
3226
3227 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3228 // based on this is preferred for layout stability.
3229 let mut max_target_bounds = target_bounds;
3230 max_target_bounds.size.height = max_height;
3231 if y_flipped {
3232 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3233 }
3234
3235 // Add spacing around `target_bounds` and `max_target_bounds`.
3236 let mut extend_amount = Edges::all(MENU_GAP);
3237 if y_flipped {
3238 extend_amount.bottom = line_height;
3239 } else {
3240 extend_amount.top = line_height;
3241 }
3242 let target_bounds = target_bounds.extend(extend_amount);
3243 let max_target_bounds = max_target_bounds.extend(extend_amount);
3244
3245 let must_place_above_or_below =
3246 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3247 laid_out_popovers[menu_ix + 1..]
3248 .iter()
3249 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3250 } else {
3251 false
3252 };
3253
3254 self.layout_context_menu_aside(
3255 y_flipped,
3256 *menu_bounds,
3257 target_bounds,
3258 max_target_bounds,
3259 max_menu_height,
3260 must_place_above_or_below,
3261 text_hitbox,
3262 viewport_bounds,
3263 window,
3264 cx,
3265 );
3266 }
3267
3268 #[allow(clippy::too_many_arguments)]
3269 fn layout_gutter_menu(
3270 &self,
3271 line_height: Pixels,
3272 text_hitbox: &Hitbox,
3273 content_origin: gpui::Point<Pixels>,
3274 scroll_pixel_position: gpui::Point<Pixels>,
3275 gutter_overshoot: Pixels,
3276 window: &mut Window,
3277 cx: &mut App,
3278 ) {
3279 let editor = self.editor.read(cx);
3280 if !editor.context_menu_visible() {
3281 return;
3282 }
3283 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3284 editor.context_menu_origin()
3285 else {
3286 return;
3287 };
3288 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3289 // indicator than just a plain first column of the text field.
3290 let target_position = content_origin
3291 + gpui::Point {
3292 x: -gutter_overshoot,
3293 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3294 };
3295 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3296 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3297 let viewport_bounds =
3298 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3299 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3300 ..Default::default()
3301 });
3302 self.layout_popovers_above_or_below_line(
3303 target_position,
3304 line_height,
3305 min_height,
3306 max_height,
3307 text_hitbox,
3308 viewport_bounds,
3309 window,
3310 cx,
3311 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3312 let mut element = self
3313 .render_context_menu(line_height, height, y_flipped, window, cx)
3314 .expect("Visible context menu should always render.");
3315 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3316 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3317 },
3318 );
3319 }
3320
3321 #[allow(clippy::too_many_arguments)]
3322 fn layout_popovers_above_or_below_line(
3323 &self,
3324 target_position: gpui::Point<Pixels>,
3325 line_height: Pixels,
3326 min_height: Pixels,
3327 max_height: Pixels,
3328 text_hitbox: &Hitbox,
3329 viewport_bounds: Bounds<Pixels>,
3330 window: &mut Window,
3331 cx: &mut App,
3332 make_sized_popovers: impl FnOnce(
3333 Pixels,
3334 Pixels,
3335 bool,
3336 &mut Window,
3337 &mut App,
3338 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3339 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3340 // If the max height won't fit below and there is more space above, put it above the line.
3341 let bottom_y_when_flipped = target_position.y - line_height;
3342 let available_above = bottom_y_when_flipped - text_hitbox.top();
3343 let available_below = text_hitbox.bottom() - target_position.y;
3344 let y_overflows_below = max_height > available_below;
3345 let mut y_flipped = y_overflows_below && available_above > available_below;
3346 let mut height = cmp::min(
3347 max_height,
3348 if y_flipped {
3349 available_above
3350 } else {
3351 available_below
3352 },
3353 );
3354
3355 // If the min height doesn't fit within text bounds, instead fit within the window.
3356 if height < min_height {
3357 let available_above = bottom_y_when_flipped;
3358 let available_below = viewport_bounds.bottom() - target_position.y;
3359 if available_below > min_height {
3360 y_flipped = false;
3361 height = min_height;
3362 } else if available_above > min_height {
3363 y_flipped = true;
3364 height = min_height;
3365 } else if available_above > available_below {
3366 y_flipped = true;
3367 height = available_above;
3368 } else {
3369 y_flipped = false;
3370 height = available_below;
3371 }
3372 }
3373
3374 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3375
3376 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3377 // for very narrow windows.
3378 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3379 if popovers.is_empty() {
3380 return None;
3381 }
3382
3383 let max_width = popovers
3384 .iter()
3385 .map(|(_, _, size)| size.width)
3386 .max()
3387 .unwrap_or_default();
3388
3389 let mut current_position = gpui::Point {
3390 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3391 // overflow. Include space for the scrollbar.
3392 x: target_position
3393 .x
3394 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3395 y: if y_flipped {
3396 bottom_y_when_flipped
3397 } else {
3398 target_position.y
3399 },
3400 };
3401
3402 let mut laid_out_popovers = popovers
3403 .into_iter()
3404 .map(|(popover_type, element, size)| {
3405 if y_flipped {
3406 current_position.y -= size.height;
3407 }
3408 let position = current_position;
3409 window.defer_draw(element, current_position, 1);
3410 if !y_flipped {
3411 current_position.y += size.height + MENU_GAP;
3412 } else {
3413 current_position.y -= MENU_GAP;
3414 }
3415 (popover_type, Bounds::new(position, size))
3416 })
3417 .collect::<Vec<_>>();
3418
3419 if y_flipped {
3420 laid_out_popovers.reverse();
3421 }
3422
3423 Some((laid_out_popovers, y_flipped))
3424 }
3425
3426 #[allow(clippy::too_many_arguments)]
3427 fn layout_context_menu_aside(
3428 &self,
3429 y_flipped: bool,
3430 menu_bounds: Bounds<Pixels>,
3431 target_bounds: Bounds<Pixels>,
3432 max_target_bounds: Bounds<Pixels>,
3433 max_height: Pixels,
3434 must_place_above_or_below: bool,
3435 text_hitbox: &Hitbox,
3436 viewport_bounds: Bounds<Pixels>,
3437 window: &mut Window,
3438 cx: &mut App,
3439 ) {
3440 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3441 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3442 && !must_place_above_or_below
3443 {
3444 let max_width = cmp::min(
3445 available_within_viewport.right - px(1.),
3446 MENU_ASIDE_MAX_WIDTH,
3447 );
3448 let Some(mut aside) = self.render_context_menu_aside(
3449 size(max_width, max_height - POPOVER_Y_PADDING),
3450 window,
3451 cx,
3452 ) else {
3453 return;
3454 };
3455 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3456 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3457 Some((aside, right_position))
3458 } else {
3459 let max_size = size(
3460 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3461 // won't be needed here.
3462 cmp::min(
3463 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3464 viewport_bounds.right(),
3465 ),
3466 cmp::min(
3467 max_height,
3468 cmp::max(
3469 available_within_viewport.top,
3470 available_within_viewport.bottom,
3471 ),
3472 ) - POPOVER_Y_PADDING,
3473 );
3474 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3475 return;
3476 };
3477 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3478
3479 let top_position = point(
3480 menu_bounds.origin.x,
3481 target_bounds.top() - actual_size.height,
3482 );
3483 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3484
3485 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3486 // Prefer to fit on the same side of the line as the menu, then on the other side of
3487 // the line.
3488 if !y_flipped && wanted.height < available.bottom {
3489 Some(bottom_position)
3490 } else if !y_flipped && wanted.height < available.top {
3491 Some(top_position)
3492 } else if y_flipped && wanted.height < available.top {
3493 Some(top_position)
3494 } else if y_flipped && wanted.height < available.bottom {
3495 Some(bottom_position)
3496 } else {
3497 None
3498 }
3499 };
3500
3501 // Prefer choosing a direction using max sizes rather than actual size for stability.
3502 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3503 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3504 let aside_position = fit_within(available_within_text, wanted)
3505 // Fallback: fit max size in window.
3506 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3507 // Fallback: fit actual size in window.
3508 .or_else(|| fit_within(available_within_viewport, actual_size));
3509
3510 aside_position.map(|position| (aside, position))
3511 };
3512
3513 // Skip drawing if it doesn't fit anywhere.
3514 if let Some((aside, position)) = positioned_aside {
3515 window.defer_draw(aside, position, 2);
3516 }
3517 }
3518
3519 fn render_context_menu(
3520 &self,
3521 line_height: Pixels,
3522 height: Pixels,
3523 y_flipped: bool,
3524 window: &mut Window,
3525 cx: &mut App,
3526 ) -> Option<AnyElement> {
3527 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3528 self.editor.update(cx, |editor, cx| {
3529 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3530 })
3531 }
3532
3533 fn render_context_menu_aside(
3534 &self,
3535 max_size: Size<Pixels>,
3536 window: &mut Window,
3537 cx: &mut App,
3538 ) -> Option<AnyElement> {
3539 if max_size.width < px(100.) || max_size.height < px(12.) {
3540 None
3541 } else {
3542 self.editor.update(cx, |editor, cx| {
3543 editor.render_context_menu_aside(max_size, window, cx)
3544 })
3545 }
3546 }
3547
3548 #[allow(clippy::too_many_arguments)]
3549 fn layout_edit_prediction_popover(
3550 &self,
3551 text_bounds: &Bounds<Pixels>,
3552 content_origin: gpui::Point<Pixels>,
3553 editor_snapshot: &EditorSnapshot,
3554 visible_row_range: Range<DisplayRow>,
3555 scroll_top: f32,
3556 scroll_bottom: f32,
3557 line_layouts: &[LineWithInvisibles],
3558 line_height: Pixels,
3559 scroll_pixel_position: gpui::Point<Pixels>,
3560 newest_selection_head: Option<DisplayPoint>,
3561 editor_width: Pixels,
3562 style: &EditorStyle,
3563 window: &mut Window,
3564 cx: &mut App,
3565 ) -> Option<AnyElement> {
3566 const PADDING_X: Pixels = Pixels(24.);
3567 const PADDING_Y: Pixels = Pixels(2.);
3568
3569 let editor = self.editor.read(cx);
3570 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3571
3572 if editor.edit_prediction_visible_in_cursor_popover(true) {
3573 return None;
3574 }
3575
3576 // Adjust text origin for horizontal scrolling (in some cases here)
3577 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3578
3579 // Clamp left offset after extreme scrollings
3580 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3581 x: point.x.max(content_origin.x),
3582 y: point.y,
3583 };
3584
3585 match &active_inline_completion.completion {
3586 InlineCompletion::Move { target, .. } => {
3587 let target_display_point = target.to_display_point(editor_snapshot);
3588
3589 if editor.edit_prediction_requires_modifier() {
3590 if !editor.edit_prediction_preview_is_active() {
3591 return None;
3592 }
3593
3594 if target_display_point.row() < visible_row_range.start {
3595 let mut element = editor
3596 .render_edit_prediction_line_popover(
3597 "Scroll",
3598 Some(IconName::ArrowUp),
3599 window,
3600 cx,
3601 )?
3602 .into_any();
3603
3604 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3605
3606 let cursor = newest_selection_head?;
3607 let cursor_row_layout = line_layouts
3608 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3609 let cursor_column = cursor.column() as usize;
3610
3611 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3612
3613 const PADDING_Y: Pixels = px(12.);
3614
3615 let origin = start_point + point(cursor_character_x, PADDING_Y);
3616
3617 element.prepaint_at(origin, window, cx);
3618 return Some(element);
3619 } else if target_display_point.row() >= visible_row_range.end {
3620 let mut element = editor
3621 .render_edit_prediction_line_popover(
3622 "Scroll",
3623 Some(IconName::ArrowDown),
3624 window,
3625 cx,
3626 )?
3627 .into_any();
3628
3629 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3630
3631 let cursor = newest_selection_head?;
3632 let cursor_row_layout = line_layouts
3633 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3634 let cursor_column = cursor.column() as usize;
3635
3636 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3637 const PADDING_Y: Pixels = px(12.);
3638
3639 let origin = start_point
3640 + point(
3641 cursor_character_x,
3642 text_bounds.size.height - size.height - PADDING_Y,
3643 );
3644
3645 element.prepaint_at(origin, window, cx);
3646 return Some(element);
3647 } else {
3648 const POLE_WIDTH: Pixels = px(2.);
3649
3650 let mut element = v_flex()
3651 .child(
3652 editor
3653 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3654 .rounded_br(px(0.))
3655 .rounded_tr(px(0.))
3656 .border_r_2(),
3657 )
3658 .child(
3659 div()
3660 .w(POLE_WIDTH)
3661 .bg(cx.theme().colors().text_accent.opacity(0.8))
3662 .h(line_height),
3663 )
3664 .items_end()
3665 .into_any();
3666
3667 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3668
3669 let line_layout =
3670 line_layouts
3671 .get(target_display_point.row().minus(visible_row_range.start)
3672 as usize)?;
3673 let target_column = target_display_point.column() as usize;
3674
3675 let target_x = line_layout.x_for_index(target_column);
3676 let target_y = (target_display_point.row().as_f32() * line_height)
3677 - scroll_pixel_position.y;
3678
3679 let origin = clamp_start(
3680 start_point + point(target_x, target_y)
3681 - point(size.width - POLE_WIDTH, size.height - line_height),
3682 );
3683
3684 element.prepaint_at(origin, window, cx);
3685
3686 return Some(element);
3687 }
3688 }
3689
3690 if target_display_point.row().as_f32() < scroll_top {
3691 let mut element = editor
3692 .render_edit_prediction_line_popover(
3693 "Jump to Edit",
3694 Some(IconName::ArrowUp),
3695 window,
3696 cx,
3697 )?
3698 .into_any();
3699
3700 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3701 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3702
3703 element.prepaint_at(text_bounds.origin + offset, window, cx);
3704 Some(element)
3705 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3706 let mut element = editor
3707 .render_edit_prediction_line_popover(
3708 "Jump to Edit",
3709 Some(IconName::ArrowDown),
3710 window,
3711 cx,
3712 )?
3713 .into_any();
3714
3715 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3716 let offset = point(
3717 (text_bounds.size.width - size.width) / 2.,
3718 text_bounds.size.height - size.height - PADDING_Y,
3719 );
3720
3721 element.prepaint_at(text_bounds.origin + offset, window, cx);
3722 Some(element)
3723 } else {
3724 let mut element = editor
3725 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3726 .into_any();
3727 let target_line_end = DisplayPoint::new(
3728 target_display_point.row(),
3729 editor_snapshot.line_len(target_display_point.row()),
3730 );
3731 let origin = self.editor.update(cx, |editor, _cx| {
3732 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3733 })?;
3734
3735 element.prepaint_as_root(
3736 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3737 AvailableSpace::min_size(),
3738 window,
3739 cx,
3740 );
3741 Some(element)
3742 }
3743 }
3744 InlineCompletion::Edit {
3745 edits,
3746 edit_preview,
3747 display_mode,
3748 snapshot,
3749 } => {
3750 if self.editor.read(cx).has_visible_completions_menu() {
3751 return None;
3752 }
3753
3754 let edit_start = edits
3755 .first()
3756 .unwrap()
3757 .0
3758 .start
3759 .to_display_point(editor_snapshot);
3760 let edit_end = edits
3761 .last()
3762 .unwrap()
3763 .0
3764 .end
3765 .to_display_point(editor_snapshot);
3766
3767 let is_visible = visible_row_range.contains(&edit_start.row())
3768 || visible_row_range.contains(&edit_end.row());
3769 if !is_visible {
3770 return None;
3771 }
3772
3773 match display_mode {
3774 EditDisplayMode::TabAccept => {
3775 let range = &edits.first()?.0;
3776 let target_display_point = range.end.to_display_point(editor_snapshot);
3777
3778 let target_line_end = DisplayPoint::new(
3779 target_display_point.row(),
3780 editor_snapshot.line_len(target_display_point.row()),
3781 );
3782 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3783 Some((
3784 editor
3785 .render_edit_prediction_line_popover(
3786 "Accept", None, window, cx,
3787 )?
3788 .into_any(),
3789 editor.display_to_pixel_point(
3790 target_line_end,
3791 editor_snapshot,
3792 window,
3793 )?,
3794 ))
3795 })?;
3796
3797 element.prepaint_as_root(
3798 clamp_start(start_point + origin + point(PADDING_X, px(0.))),
3799 AvailableSpace::min_size(),
3800 window,
3801 cx,
3802 );
3803 return Some(element);
3804 }
3805 EditDisplayMode::Inline => return None,
3806 EditDisplayMode::DiffPopover => {}
3807 }
3808
3809 let highlighted_edits = crate::inline_completion_edit_text(
3810 &snapshot,
3811 edits,
3812 edit_preview.as_ref()?,
3813 false,
3814 cx,
3815 );
3816
3817 let styled_text = highlighted_edits.to_styled_text(&style.text);
3818 let line_count = highlighted_edits.text.lines().count();
3819
3820 const BORDER_WIDTH: Pixels = px(1.);
3821
3822 let mut element = h_flex()
3823 .items_start()
3824 .child(
3825 h_flex()
3826 .bg(cx.theme().colors().editor_background)
3827 .border(BORDER_WIDTH)
3828 .shadow_sm()
3829 .border_color(cx.theme().colors().border)
3830 .rounded_l_lg()
3831 .when(line_count > 1, |el| el.rounded_br_lg())
3832 .pr_1()
3833 .child(styled_text),
3834 )
3835 .child(
3836 h_flex()
3837 .h(line_height + BORDER_WIDTH * px(2.))
3838 .px_1p5()
3839 .gap_1()
3840 // Workaround: For some reason, there's a gap if we don't do this
3841 .ml(-BORDER_WIDTH)
3842 .shadow(smallvec![gpui::BoxShadow {
3843 color: gpui::black().opacity(0.05),
3844 offset: point(px(1.), px(1.)),
3845 blur_radius: px(2.),
3846 spread_radius: px(0.),
3847 }])
3848 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
3849 .border(BORDER_WIDTH)
3850 .border_color(cx.theme().colors().border)
3851 .rounded_r_lg()
3852 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
3853 )
3854 .into_any();
3855
3856 let longest_row =
3857 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3858 let longest_line_width = if visible_row_range.contains(&longest_row) {
3859 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3860 } else {
3861 layout_line(
3862 longest_row,
3863 editor_snapshot,
3864 style,
3865 editor_width,
3866 |_| false,
3867 window,
3868 cx,
3869 )
3870 .width
3871 };
3872
3873 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3874 .extend(Edges {
3875 right: -Self::SCROLLBAR_WIDTH,
3876 ..Default::default()
3877 });
3878
3879 let x_after_longest =
3880 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3881
3882 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3883
3884 // Fully visible if it can be displayed within the window (allow overlapping other
3885 // panes). However, this is only allowed if the popover starts within text_bounds.
3886 let can_position_to_the_right = x_after_longest < text_bounds.right()
3887 && x_after_longest + element_bounds.width < viewport_bounds.right();
3888
3889 let mut origin = if can_position_to_the_right {
3890 point(
3891 x_after_longest,
3892 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3893 - scroll_pixel_position.y,
3894 )
3895 } else {
3896 let cursor_row = newest_selection_head.map(|head| head.row());
3897 let above_edit = edit_start
3898 .row()
3899 .0
3900 .checked_sub(line_count as u32)
3901 .map(DisplayRow);
3902 let below_edit = Some(edit_end.row() + 1);
3903 let above_cursor = cursor_row
3904 .and_then(|row| row.0.checked_sub(line_count as u32).map(DisplayRow));
3905 let below_cursor = cursor_row.map(|cursor_row| cursor_row + 1);
3906
3907 // Place the edit popover adjacent to the edit if there is a location
3908 // available that is onscreen and does not obscure the cursor. Otherwise,
3909 // place it adjacent to the cursor.
3910 let row_target = [above_edit, below_edit, above_cursor, below_cursor]
3911 .into_iter()
3912 .flatten()
3913 .find(|&start_row| {
3914 let end_row = start_row + line_count as u32;
3915 visible_row_range.contains(&start_row)
3916 && visible_row_range.contains(&end_row)
3917 && cursor_row.map_or(true, |cursor_row| {
3918 !((start_row..end_row).contains(&cursor_row))
3919 })
3920 })?;
3921
3922 content_origin
3923 + point(
3924 -scroll_pixel_position.x,
3925 row_target.as_f32() * line_height - scroll_pixel_position.y,
3926 )
3927 };
3928
3929 origin.x -= BORDER_WIDTH;
3930
3931 window.defer_draw(element, origin, 1);
3932
3933 // Do not return an element, since it will already be drawn due to defer_draw.
3934 None
3935 }
3936 }
3937 }
3938
3939 fn layout_mouse_context_menu(
3940 &self,
3941 editor_snapshot: &EditorSnapshot,
3942 visible_range: Range<DisplayRow>,
3943 content_origin: gpui::Point<Pixels>,
3944 window: &mut Window,
3945 cx: &mut App,
3946 ) -> Option<AnyElement> {
3947 let position = self.editor.update(cx, |editor, _cx| {
3948 let visible_start_point = editor.display_to_pixel_point(
3949 DisplayPoint::new(visible_range.start, 0),
3950 editor_snapshot,
3951 window,
3952 )?;
3953 let visible_end_point = editor.display_to_pixel_point(
3954 DisplayPoint::new(visible_range.end, 0),
3955 editor_snapshot,
3956 window,
3957 )?;
3958
3959 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3960 let (source_display_point, position) = match mouse_context_menu.position {
3961 MenuPosition::PinnedToScreen(point) => (None, point),
3962 MenuPosition::PinnedToEditor { source, offset } => {
3963 let source_display_point = source.to_display_point(editor_snapshot);
3964 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3965 let position = content_origin + source_point + offset;
3966 (Some(source_display_point), position)
3967 }
3968 };
3969
3970 let source_included = source_display_point.map_or(true, |source_display_point| {
3971 visible_range
3972 .to_inclusive()
3973 .contains(&source_display_point.row())
3974 });
3975 let position_included =
3976 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3977 if !source_included && !position_included {
3978 None
3979 } else {
3980 Some(position)
3981 }
3982 })?;
3983
3984 let mut element = self.editor.update(cx, |editor, _| {
3985 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3986 let context_menu = mouse_context_menu.context_menu.clone();
3987
3988 Some(
3989 deferred(
3990 anchored()
3991 .position(position)
3992 .child(context_menu)
3993 .anchor(Corner::TopLeft)
3994 .snap_to_window_with_margin(px(8.)),
3995 )
3996 .with_priority(1)
3997 .into_any(),
3998 )
3999 })?;
4000
4001 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4002 Some(element)
4003 }
4004
4005 #[allow(clippy::too_many_arguments)]
4006 fn layout_hover_popovers(
4007 &self,
4008 snapshot: &EditorSnapshot,
4009 hitbox: &Hitbox,
4010 text_hitbox: &Hitbox,
4011 visible_display_row_range: Range<DisplayRow>,
4012 content_origin: gpui::Point<Pixels>,
4013 scroll_pixel_position: gpui::Point<Pixels>,
4014 line_layouts: &[LineWithInvisibles],
4015 line_height: Pixels,
4016 em_width: Pixels,
4017 window: &mut Window,
4018 cx: &mut App,
4019 ) {
4020 struct MeasuredHoverPopover {
4021 element: AnyElement,
4022 size: Size<Pixels>,
4023 horizontal_offset: Pixels,
4024 }
4025
4026 let max_size = size(
4027 (120. * em_width) // Default size
4028 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4029 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4030 (16. * line_height) // Default size
4031 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4032 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4033 );
4034
4035 let hover_popovers = self.editor.update(cx, |editor, cx| {
4036 editor
4037 .hover_state
4038 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4039 });
4040 let Some((position, hover_popovers)) = hover_popovers else {
4041 return;
4042 };
4043
4044 // This is safe because we check on layout whether the required row is available
4045 let hovered_row_layout =
4046 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4047
4048 // Compute Hovered Point
4049 let x =
4050 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4051 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4052 let hovered_point = content_origin + point(x, y);
4053
4054 let mut overall_height = Pixels::ZERO;
4055 let mut measured_hover_popovers = Vec::new();
4056 for mut hover_popover in hover_popovers {
4057 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4058 let horizontal_offset =
4059 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4060
4061 overall_height += HOVER_POPOVER_GAP + size.height;
4062
4063 measured_hover_popovers.push(MeasuredHoverPopover {
4064 element: hover_popover,
4065 size,
4066 horizontal_offset,
4067 });
4068 }
4069 overall_height += HOVER_POPOVER_GAP;
4070
4071 fn draw_occluder(
4072 width: Pixels,
4073 origin: gpui::Point<Pixels>,
4074 window: &mut Window,
4075 cx: &mut App,
4076 ) {
4077 let mut occlusion = div()
4078 .size_full()
4079 .occlude()
4080 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4081 .into_any_element();
4082 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4083 window.defer_draw(occlusion, origin, 2);
4084 }
4085
4086 if hovered_point.y > overall_height {
4087 // There is enough space above. Render popovers above the hovered point
4088 let mut current_y = hovered_point.y;
4089 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4090 let size = popover.size;
4091 let popover_origin = point(
4092 hovered_point.x + popover.horizontal_offset,
4093 current_y - size.height,
4094 );
4095
4096 window.defer_draw(popover.element, popover_origin, 2);
4097 if position != itertools::Position::Last {
4098 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4099 draw_occluder(size.width, origin, window, cx);
4100 }
4101
4102 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4103 }
4104 } else {
4105 // There is not enough space above. Render popovers below the hovered point
4106 let mut current_y = hovered_point.y + line_height;
4107 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4108 let size = popover.size;
4109 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4110
4111 window.defer_draw(popover.element, popover_origin, 2);
4112 if position != itertools::Position::Last {
4113 let origin = point(popover_origin.x, popover_origin.y + size.height);
4114 draw_occluder(size.width, origin, window, cx);
4115 }
4116
4117 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4118 }
4119 }
4120 }
4121
4122 #[allow(clippy::too_many_arguments)]
4123 fn layout_diff_hunk_controls(
4124 &self,
4125 row_range: Range<DisplayRow>,
4126 row_infos: &[RowInfo],
4127 text_hitbox: &Hitbox,
4128 position_map: &PositionMap,
4129 newest_cursor_position: Option<DisplayPoint>,
4130 line_height: Pixels,
4131 scroll_pixel_position: gpui::Point<Pixels>,
4132 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4133 editor: Entity<Editor>,
4134 window: &mut Window,
4135 cx: &mut App,
4136 ) -> Vec<AnyElement> {
4137 let point_for_position = position_map.point_for_position(window.mouse_position());
4138
4139 let mut controls = vec![];
4140
4141 let active_positions = [
4142 Some(point_for_position.previous_valid),
4143 newest_cursor_position,
4144 ];
4145
4146 for (hunk, _) in display_hunks {
4147 if let DisplayDiffHunk::Unfolded {
4148 display_row_range,
4149 multi_buffer_range,
4150 status,
4151 ..
4152 } = &hunk
4153 {
4154 if display_row_range.start < row_range.start
4155 || display_row_range.start >= row_range.end
4156 {
4157 continue;
4158 }
4159 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4160 if row_infos[row_ix].diff_status.is_none() {
4161 continue;
4162 }
4163 if matches!(
4164 row_infos[row_ix].diff_status,
4165 Some(DiffHunkStatus::Added(_))
4166 ) && !matches!(*status, DiffHunkStatus::Added(_))
4167 {
4168 continue;
4169 }
4170 if active_positions
4171 .iter()
4172 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4173 {
4174 let y = display_row_range.start.as_f32() * line_height
4175 + text_hitbox.bounds.top()
4176 - scroll_pixel_position.y;
4177 let x = text_hitbox.bounds.right() - px(100.);
4178
4179 let mut element = diff_hunk_controls(
4180 display_row_range.start.0,
4181 multi_buffer_range.clone(),
4182 line_height,
4183 &editor,
4184 cx,
4185 );
4186 element.prepaint_as_root(
4187 gpui::Point::new(x, y),
4188 size(px(100.0), line_height).into(),
4189 window,
4190 cx,
4191 );
4192 controls.push(element);
4193 }
4194 }
4195 }
4196
4197 controls
4198 }
4199
4200 #[allow(clippy::too_many_arguments)]
4201 fn layout_signature_help(
4202 &self,
4203 hitbox: &Hitbox,
4204 content_origin: gpui::Point<Pixels>,
4205 scroll_pixel_position: gpui::Point<Pixels>,
4206 newest_selection_head: Option<DisplayPoint>,
4207 start_row: DisplayRow,
4208 line_layouts: &[LineWithInvisibles],
4209 line_height: Pixels,
4210 em_width: Pixels,
4211 window: &mut Window,
4212 cx: &mut App,
4213 ) {
4214 if !self.editor.focus_handle(cx).is_focused(window) {
4215 return;
4216 }
4217 let Some(newest_selection_head) = newest_selection_head else {
4218 return;
4219 };
4220 let selection_row = newest_selection_head.row();
4221 if selection_row < start_row {
4222 return;
4223 }
4224 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4225 else {
4226 return;
4227 };
4228
4229 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4230 - scroll_pixel_position.x
4231 + content_origin.x;
4232 let start_y =
4233 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4234
4235 let max_size = size(
4236 (120. * em_width) // Default size
4237 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4238 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4239 (16. * line_height) // Default size
4240 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4241 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4242 );
4243
4244 let maybe_element = self.editor.update(cx, |editor, cx| {
4245 if let Some(popover) = editor.signature_help_state.popover_mut() {
4246 let element = popover.render(
4247 &self.style,
4248 max_size,
4249 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4250 cx,
4251 );
4252 Some(element)
4253 } else {
4254 None
4255 }
4256 });
4257 if let Some(mut element) = maybe_element {
4258 let window_size = window.viewport_size();
4259 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4260 let mut point = point(start_x, start_y - size.height);
4261
4262 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4263 if point.x + size.width >= window_size.width {
4264 point.x = window_size.width - size.width;
4265 }
4266
4267 window.defer_draw(element, point, 1)
4268 }
4269 }
4270
4271 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4272 window.paint_layer(layout.hitbox.bounds, |window| {
4273 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4274 let gutter_bg = cx.theme().colors().editor_gutter_background;
4275 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4276 window.paint_quad(fill(
4277 layout.position_map.text_hitbox.bounds,
4278 self.style.background,
4279 ));
4280
4281 if let EditorMode::Full = layout.mode {
4282 let mut active_rows = layout.active_rows.iter().peekable();
4283 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4284 let mut end_row = start_row.0;
4285 while active_rows
4286 .peek()
4287 .map_or(false, |(active_row, has_selection)| {
4288 active_row.0 == end_row + 1
4289 && *has_selection == contains_non_empty_selection
4290 })
4291 {
4292 active_rows.next().unwrap();
4293 end_row += 1;
4294 }
4295
4296 if !contains_non_empty_selection {
4297 let highlight_h_range =
4298 match layout.position_map.snapshot.current_line_highlight {
4299 CurrentLineHighlight::Gutter => Some(Range {
4300 start: layout.hitbox.left(),
4301 end: layout.gutter_hitbox.right(),
4302 }),
4303 CurrentLineHighlight::Line => Some(Range {
4304 start: layout.position_map.text_hitbox.bounds.left(),
4305 end: layout.position_map.text_hitbox.bounds.right(),
4306 }),
4307 CurrentLineHighlight::All => Some(Range {
4308 start: layout.hitbox.left(),
4309 end: layout.hitbox.right(),
4310 }),
4311 CurrentLineHighlight::None => None,
4312 };
4313 if let Some(range) = highlight_h_range {
4314 let active_line_bg = cx.theme().colors().editor_active_line_background;
4315 let bounds = Bounds {
4316 origin: point(
4317 range.start,
4318 layout.hitbox.origin.y
4319 + (start_row.as_f32() - scroll_top)
4320 * layout.position_map.line_height,
4321 ),
4322 size: size(
4323 range.end - range.start,
4324 layout.position_map.line_height
4325 * (end_row - start_row.0 + 1) as f32,
4326 ),
4327 };
4328 window.paint_quad(fill(bounds, active_line_bg));
4329 }
4330 }
4331 }
4332
4333 let mut paint_highlight =
4334 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4335 let origin = point(
4336 layout.hitbox.origin.x,
4337 layout.hitbox.origin.y
4338 + (highlight_row_start.as_f32() - scroll_top)
4339 * layout.position_map.line_height,
4340 );
4341 let size = size(
4342 layout.hitbox.size.width,
4343 layout.position_map.line_height
4344 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4345 );
4346 window.paint_quad(fill(Bounds { origin, size }, color));
4347 };
4348
4349 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4350 for (&new_row, &new_background) in &layout.highlighted_rows {
4351 match &mut current_paint {
4352 Some((current_background, current_range)) => {
4353 let current_background = *current_background;
4354 let new_range_started = current_background != new_background
4355 || current_range.end.next_row() != new_row;
4356 if new_range_started {
4357 paint_highlight(
4358 current_range.start,
4359 current_range.end,
4360 current_background,
4361 );
4362 current_paint = Some((new_background, new_row..new_row));
4363 continue;
4364 } else {
4365 current_range.end = current_range.end.next_row();
4366 }
4367 }
4368 None => current_paint = Some((new_background, new_row..new_row)),
4369 };
4370 }
4371 if let Some((color, range)) = current_paint {
4372 paint_highlight(range.start, range.end, color);
4373 }
4374
4375 let scroll_left =
4376 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4377
4378 for (wrap_position, active) in layout.wrap_guides.iter() {
4379 let x = (layout.position_map.text_hitbox.origin.x
4380 + *wrap_position
4381 + layout.position_map.em_width / 2.)
4382 - scroll_left;
4383
4384 let show_scrollbars = {
4385 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4386
4387 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4388 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4389 };
4390
4391 if x < layout.position_map.text_hitbox.origin.x
4392 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4393 {
4394 continue;
4395 }
4396
4397 let color = if *active {
4398 cx.theme().colors().editor_active_wrap_guide
4399 } else {
4400 cx.theme().colors().editor_wrap_guide
4401 };
4402 window.paint_quad(fill(
4403 Bounds {
4404 origin: point(x, layout.position_map.text_hitbox.origin.y),
4405 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4406 },
4407 color,
4408 ));
4409 }
4410 }
4411 })
4412 }
4413
4414 fn paint_indent_guides(
4415 &mut self,
4416 layout: &mut EditorLayout,
4417 window: &mut Window,
4418 cx: &mut App,
4419 ) {
4420 let Some(indent_guides) = &layout.indent_guides else {
4421 return;
4422 };
4423
4424 let faded_color = |color: Hsla, alpha: f32| {
4425 let mut faded = color;
4426 faded.a = alpha;
4427 faded
4428 };
4429
4430 for indent_guide in indent_guides {
4431 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4432 let settings = indent_guide.settings;
4433
4434 // TODO fixed for now, expose them through themes later
4435 const INDENT_AWARE_ALPHA: f32 = 0.2;
4436 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4437 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4438 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4439
4440 let line_color = match (settings.coloring, indent_guide.active) {
4441 (IndentGuideColoring::Disabled, _) => None,
4442 (IndentGuideColoring::Fixed, false) => {
4443 Some(cx.theme().colors().editor_indent_guide)
4444 }
4445 (IndentGuideColoring::Fixed, true) => {
4446 Some(cx.theme().colors().editor_indent_guide_active)
4447 }
4448 (IndentGuideColoring::IndentAware, false) => {
4449 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4450 }
4451 (IndentGuideColoring::IndentAware, true) => {
4452 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4453 }
4454 };
4455
4456 let background_color = match (settings.background_coloring, indent_guide.active) {
4457 (IndentGuideBackgroundColoring::Disabled, _) => None,
4458 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4459 indent_accent_colors,
4460 INDENT_AWARE_BACKGROUND_ALPHA,
4461 )),
4462 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4463 indent_accent_colors,
4464 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4465 )),
4466 };
4467
4468 let requested_line_width = if indent_guide.active {
4469 settings.active_line_width
4470 } else {
4471 settings.line_width
4472 }
4473 .clamp(1, 10);
4474 let mut line_indicator_width = 0.;
4475 if let Some(color) = line_color {
4476 window.paint_quad(fill(
4477 Bounds {
4478 origin: indent_guide.origin,
4479 size: size(px(requested_line_width as f32), indent_guide.length),
4480 },
4481 color,
4482 ));
4483 line_indicator_width = requested_line_width as f32;
4484 }
4485
4486 if let Some(color) = background_color {
4487 let width = indent_guide.single_indent_width - px(line_indicator_width);
4488 window.paint_quad(fill(
4489 Bounds {
4490 origin: point(
4491 indent_guide.origin.x + px(line_indicator_width),
4492 indent_guide.origin.y,
4493 ),
4494 size: size(width, indent_guide.length),
4495 },
4496 color,
4497 ));
4498 }
4499 }
4500 }
4501
4502 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4503 let is_singleton = self.editor.read(cx).is_singleton(cx);
4504
4505 let line_height = layout.position_map.line_height;
4506 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4507
4508 for LineNumberLayout {
4509 shaped_line,
4510 hitbox,
4511 display_row,
4512 } in layout.line_numbers.values()
4513 {
4514 let Some(hitbox) = hitbox else {
4515 continue;
4516 };
4517
4518 let is_active = layout.active_rows.contains_key(&display_row);
4519
4520 let color = if is_active {
4521 cx.theme().colors().editor_active_line_number
4522 } else if !is_singleton && hitbox.is_hovered(window) {
4523 cx.theme().colors().editor_hover_line_number
4524 } else {
4525 cx.theme().colors().editor_line_number
4526 };
4527
4528 let Some(line) = self
4529 .shape_line_number(shaped_line.text.clone(), color, window)
4530 .log_err()
4531 else {
4532 continue;
4533 };
4534 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4535 continue;
4536 };
4537 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4538 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4539 if is_singleton {
4540 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4541 } else {
4542 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4543 }
4544 }
4545 }
4546
4547 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4548 if layout.display_hunks.is_empty() {
4549 return;
4550 }
4551
4552 let line_height = layout.position_map.line_height;
4553 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4554 for (hunk, hitbox) in &layout.display_hunks {
4555 let hunk_to_paint = match hunk {
4556 DisplayDiffHunk::Folded { .. } => {
4557 let hunk_bounds = Self::diff_hunk_bounds(
4558 &layout.position_map.snapshot,
4559 line_height,
4560 layout.gutter_hitbox.bounds,
4561 hunk,
4562 );
4563 Some((
4564 hunk_bounds,
4565 cx.theme().status().modified,
4566 Corners::all(px(0.)),
4567 &DiffHunkSecondaryStatus::None,
4568 ))
4569 }
4570 DisplayDiffHunk::Unfolded {
4571 status,
4572 display_row_range,
4573 ..
4574 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4575 DiffHunkStatus::Added(secondary_status) => (
4576 hunk_hitbox.bounds,
4577 cx.theme().status().created,
4578 Corners::all(px(0.)),
4579 secondary_status,
4580 ),
4581 DiffHunkStatus::Modified(secondary_status) => (
4582 hunk_hitbox.bounds,
4583 cx.theme().status().modified,
4584 Corners::all(px(0.)),
4585 secondary_status,
4586 ),
4587 DiffHunkStatus::Removed(secondary_status)
4588 if !display_row_range.is_empty() =>
4589 {
4590 (
4591 hunk_hitbox.bounds,
4592 cx.theme().status().deleted,
4593 Corners::all(px(0.)),
4594 secondary_status,
4595 )
4596 }
4597 DiffHunkStatus::Removed(secondary_status) => (
4598 Bounds::new(
4599 point(
4600 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4601 hunk_hitbox.origin.y,
4602 ),
4603 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4604 ),
4605 cx.theme().status().deleted,
4606 Corners::all(1. * line_height),
4607 secondary_status,
4608 ),
4609 }),
4610 };
4611
4612 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4613 hunk_to_paint
4614 {
4615 if *secondary_status != DiffHunkSecondaryStatus::None {
4616 background_color.a *= 0.6;
4617 }
4618 window.paint_quad(quad(
4619 hunk_bounds,
4620 corner_radii,
4621 background_color,
4622 Edges::default(),
4623 transparent_black(),
4624 ));
4625 }
4626 }
4627 });
4628 }
4629
4630 fn diff_hunk_bounds(
4631 snapshot: &EditorSnapshot,
4632 line_height: Pixels,
4633 gutter_bounds: Bounds<Pixels>,
4634 hunk: &DisplayDiffHunk,
4635 ) -> Bounds<Pixels> {
4636 let scroll_position = snapshot.scroll_position();
4637 let scroll_top = scroll_position.y * line_height;
4638 let gutter_strip_width = (0.275 * line_height).floor();
4639
4640 match hunk {
4641 DisplayDiffHunk::Folded { display_row, .. } => {
4642 let start_y = display_row.as_f32() * line_height - scroll_top;
4643 let end_y = start_y + line_height;
4644 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4645 let highlight_size = size(gutter_strip_width, end_y - start_y);
4646 Bounds::new(highlight_origin, highlight_size)
4647 }
4648 DisplayDiffHunk::Unfolded {
4649 display_row_range,
4650 status,
4651 ..
4652 } => {
4653 if status.is_removed() && display_row_range.is_empty() {
4654 let row = display_row_range.start;
4655
4656 let offset = line_height / 2.;
4657 let start_y = row.as_f32() * line_height - offset - scroll_top;
4658 let end_y = start_y + line_height;
4659
4660 let width = (0.35 * line_height).floor();
4661 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4662 let highlight_size = size(width, end_y - start_y);
4663 Bounds::new(highlight_origin, highlight_size)
4664 } else {
4665 let start_row = display_row_range.start;
4666 let end_row = display_row_range.end;
4667 // If we're in a multibuffer, row range span might include an
4668 // excerpt header, so if we were to draw the marker straight away,
4669 // the hunk might include the rows of that header.
4670 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4671 // Instead, we simply check whether the range we're dealing with includes
4672 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4673 let end_row_in_current_excerpt = snapshot
4674 .blocks_in_range(start_row..end_row)
4675 .find_map(|(start_row, block)| {
4676 if matches!(block, Block::ExcerptBoundary { .. }) {
4677 Some(start_row)
4678 } else {
4679 None
4680 }
4681 })
4682 .unwrap_or(end_row);
4683
4684 let start_y = start_row.as_f32() * line_height - scroll_top;
4685 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4686
4687 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4688 let highlight_size = size(gutter_strip_width, end_y - start_y);
4689 Bounds::new(highlight_origin, highlight_size)
4690 }
4691 }
4692 }
4693 }
4694
4695 fn paint_gutter_indicators(
4696 &self,
4697 layout: &mut EditorLayout,
4698 window: &mut Window,
4699 cx: &mut App,
4700 ) {
4701 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4702 window.with_element_namespace("crease_toggles", |window| {
4703 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4704 crease_toggle.paint(window, cx);
4705 }
4706 });
4707
4708 for test_indicator in layout.test_indicators.iter_mut() {
4709 test_indicator.paint(window, cx);
4710 }
4711
4712 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4713 indicator.paint(window, cx);
4714 }
4715 });
4716 }
4717
4718 fn paint_gutter_highlights(
4719 &self,
4720 layout: &mut EditorLayout,
4721 window: &mut Window,
4722 cx: &mut App,
4723 ) {
4724 for (_, hunk_hitbox) in &layout.display_hunks {
4725 if let Some(hunk_hitbox) = hunk_hitbox {
4726 if !self
4727 .editor
4728 .read(cx)
4729 .buffer()
4730 .read(cx)
4731 .all_diff_hunks_expanded()
4732 {
4733 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4734 }
4735 }
4736 }
4737
4738 let show_git_gutter = layout
4739 .position_map
4740 .snapshot
4741 .show_git_diff_gutter
4742 .unwrap_or_else(|| {
4743 matches!(
4744 ProjectSettings::get_global(cx).git.git_gutter,
4745 Some(GitGutterSetting::TrackedFiles)
4746 )
4747 });
4748 if show_git_gutter {
4749 Self::paint_diff_hunks(layout, window, cx)
4750 }
4751
4752 let highlight_width = 0.275 * layout.position_map.line_height;
4753 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4754 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4755 for (range, color) in &layout.highlighted_gutter_ranges {
4756 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4757 layout.visible_display_row_range.start - DisplayRow(1)
4758 } else {
4759 range.start.row()
4760 };
4761 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4762 layout.visible_display_row_range.end + DisplayRow(1)
4763 } else {
4764 range.end.row()
4765 };
4766
4767 let start_y = layout.gutter_hitbox.top()
4768 + start_row.0 as f32 * layout.position_map.line_height
4769 - layout.position_map.scroll_pixel_position.y;
4770 let end_y = layout.gutter_hitbox.top()
4771 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4772 - layout.position_map.scroll_pixel_position.y;
4773 let bounds = Bounds::from_corners(
4774 point(layout.gutter_hitbox.left(), start_y),
4775 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4776 );
4777 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4778 }
4779 });
4780 }
4781
4782 fn paint_blamed_display_rows(
4783 &self,
4784 layout: &mut EditorLayout,
4785 window: &mut Window,
4786 cx: &mut App,
4787 ) {
4788 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4789 return;
4790 };
4791
4792 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4793 for mut blame_element in blamed_display_rows.into_iter() {
4794 blame_element.paint(window, cx);
4795 }
4796 })
4797 }
4798
4799 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4800 window.with_content_mask(
4801 Some(ContentMask {
4802 bounds: layout.position_map.text_hitbox.bounds,
4803 }),
4804 |window| {
4805 let cursor_style = if self
4806 .editor
4807 .read(cx)
4808 .hovered_link_state
4809 .as_ref()
4810 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4811 {
4812 CursorStyle::PointingHand
4813 } else {
4814 CursorStyle::IBeam
4815 };
4816 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4817
4818 let invisible_display_ranges = self.paint_highlights(layout, window);
4819 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4820 self.paint_redactions(layout, window);
4821 self.paint_cursors(layout, window, cx);
4822 self.paint_inline_blame(layout, window, cx);
4823 self.paint_diff_hunk_controls(layout, window, cx);
4824 window.with_element_namespace("crease_trailers", |window| {
4825 for trailer in layout.crease_trailers.iter_mut().flatten() {
4826 trailer.element.paint(window, cx);
4827 }
4828 });
4829 },
4830 )
4831 }
4832
4833 fn paint_highlights(
4834 &mut self,
4835 layout: &mut EditorLayout,
4836 window: &mut Window,
4837 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4838 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4839 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4840 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4841 for (range, color) in &layout.highlighted_ranges {
4842 self.paint_highlighted_range(
4843 range.clone(),
4844 *color,
4845 Pixels::ZERO,
4846 line_end_overshoot,
4847 layout,
4848 window,
4849 );
4850 }
4851
4852 let corner_radius = 0.15 * layout.position_map.line_height;
4853
4854 for (player_color, selections) in &layout.selections {
4855 for selection in selections.iter() {
4856 self.paint_highlighted_range(
4857 selection.range.clone(),
4858 player_color.selection,
4859 corner_radius,
4860 corner_radius * 2.,
4861 layout,
4862 window,
4863 );
4864
4865 if selection.is_local && !selection.range.is_empty() {
4866 invisible_display_ranges.push(selection.range.clone());
4867 }
4868 }
4869 }
4870 invisible_display_ranges
4871 })
4872 }
4873
4874 fn paint_lines(
4875 &mut self,
4876 invisible_display_ranges: &[Range<DisplayPoint>],
4877 layout: &mut EditorLayout,
4878 window: &mut Window,
4879 cx: &mut App,
4880 ) {
4881 let whitespace_setting = self
4882 .editor
4883 .read(cx)
4884 .buffer
4885 .read(cx)
4886 .settings_at(0, cx)
4887 .show_whitespaces;
4888
4889 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4890 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4891 line_with_invisibles.draw(
4892 layout,
4893 row,
4894 layout.content_origin,
4895 whitespace_setting,
4896 invisible_display_ranges,
4897 window,
4898 cx,
4899 )
4900 }
4901
4902 for line_element in &mut layout.line_elements {
4903 line_element.paint(window, cx);
4904 }
4905 }
4906
4907 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4908 if layout.redacted_ranges.is_empty() {
4909 return;
4910 }
4911
4912 let line_end_overshoot = layout.line_end_overshoot();
4913
4914 // A softer than perfect black
4915 let redaction_color = gpui::rgb(0x0e1111);
4916
4917 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4918 for range in layout.redacted_ranges.iter() {
4919 self.paint_highlighted_range(
4920 range.clone(),
4921 redaction_color.into(),
4922 Pixels::ZERO,
4923 line_end_overshoot,
4924 layout,
4925 window,
4926 );
4927 }
4928 });
4929 }
4930
4931 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4932 for cursor in &mut layout.visible_cursors {
4933 cursor.paint(layout.content_origin, window, cx);
4934 }
4935 }
4936
4937 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4938 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4939
4940 if let Some(scrollbar_layout) = scrollbar_x {
4941 let hitbox = scrollbar_layout.hitbox.clone();
4942 let text_unit_size = scrollbar_layout.text_unit_size;
4943 let visible_range = scrollbar_layout.visible_range.clone();
4944 let thumb_bounds = scrollbar_layout.thumb_bounds();
4945
4946 if scrollbar_layout.visible {
4947 window.paint_layer(hitbox.bounds, |window| {
4948 window.paint_quad(quad(
4949 hitbox.bounds,
4950 Corners::default(),
4951 cx.theme().colors().scrollbar_track_background,
4952 Edges {
4953 top: Pixels::ZERO,
4954 right: Pixels::ZERO,
4955 bottom: Pixels::ZERO,
4956 left: Pixels::ZERO,
4957 },
4958 cx.theme().colors().scrollbar_track_border,
4959 ));
4960
4961 window.paint_quad(quad(
4962 thumb_bounds,
4963 Corners::default(),
4964 cx.theme().colors().scrollbar_thumb_background,
4965 Edges {
4966 top: Pixels::ZERO,
4967 right: Pixels::ZERO,
4968 bottom: Pixels::ZERO,
4969 left: ScrollbarLayout::BORDER_WIDTH,
4970 },
4971 cx.theme().colors().scrollbar_thumb_border,
4972 ));
4973 })
4974 }
4975
4976 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4977
4978 window.on_mouse_event({
4979 let editor = self.editor.clone();
4980
4981 // there may be a way to avoid this clone
4982 let hitbox = hitbox.clone();
4983
4984 let mut mouse_position = window.mouse_position();
4985 move |event: &MouseMoveEvent, phase, window, cx| {
4986 if phase == DispatchPhase::Capture {
4987 return;
4988 }
4989
4990 editor.update(cx, |editor, cx| {
4991 if event.pressed_button == Some(MouseButton::Left)
4992 && editor
4993 .scroll_manager
4994 .is_dragging_scrollbar(Axis::Horizontal)
4995 {
4996 let x = mouse_position.x;
4997 let new_x = event.position.x;
4998 if (hitbox.left()..hitbox.right()).contains(&x) {
4999 let mut position = editor.scroll_position(cx);
5000
5001 position.x += (new_x - x) / text_unit_size;
5002 if position.x < 0.0 {
5003 position.x = 0.0;
5004 }
5005 editor.set_scroll_position(position, window, cx);
5006 }
5007
5008 cx.stop_propagation();
5009 } else {
5010 editor.scroll_manager.set_is_dragging_scrollbar(
5011 Axis::Horizontal,
5012 false,
5013 cx,
5014 );
5015
5016 if hitbox.is_hovered(window) {
5017 editor.scroll_manager.show_scrollbar(window, cx);
5018 }
5019 }
5020 mouse_position = event.position;
5021 })
5022 }
5023 });
5024
5025 if self
5026 .editor
5027 .read(cx)
5028 .scroll_manager
5029 .is_dragging_scrollbar(Axis::Horizontal)
5030 {
5031 window.on_mouse_event({
5032 let editor = self.editor.clone();
5033 move |_: &MouseUpEvent, phase, _, cx| {
5034 if phase == DispatchPhase::Capture {
5035 return;
5036 }
5037
5038 editor.update(cx, |editor, cx| {
5039 editor.scroll_manager.set_is_dragging_scrollbar(
5040 Axis::Horizontal,
5041 false,
5042 cx,
5043 );
5044 cx.stop_propagation();
5045 });
5046 }
5047 });
5048 } else {
5049 window.on_mouse_event({
5050 let editor = self.editor.clone();
5051
5052 move |event: &MouseDownEvent, phase, window, cx| {
5053 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5054 return;
5055 }
5056
5057 editor.update(cx, |editor, cx| {
5058 editor.scroll_manager.set_is_dragging_scrollbar(
5059 Axis::Horizontal,
5060 true,
5061 cx,
5062 );
5063
5064 let x = event.position.x;
5065
5066 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5067 let center_row =
5068 ((x - hitbox.left()) / text_unit_size).round() as u32;
5069 let top_row = center_row.saturating_sub(
5070 (visible_range.end - visible_range.start) as u32 / 2,
5071 );
5072
5073 let mut position = editor.scroll_position(cx);
5074 position.x = top_row as f32;
5075
5076 editor.set_scroll_position(position, window, cx);
5077 } else {
5078 editor.scroll_manager.show_scrollbar(window, cx);
5079 }
5080
5081 cx.stop_propagation();
5082 });
5083 }
5084 });
5085 }
5086 }
5087
5088 if let Some(scrollbar_layout) = scrollbar_y {
5089 let hitbox = scrollbar_layout.hitbox.clone();
5090 let text_unit_size = scrollbar_layout.text_unit_size;
5091 let visible_range = scrollbar_layout.visible_range.clone();
5092 let thumb_bounds = scrollbar_layout.thumb_bounds();
5093
5094 if scrollbar_layout.visible {
5095 window.paint_layer(hitbox.bounds, |window| {
5096 window.paint_quad(quad(
5097 hitbox.bounds,
5098 Corners::default(),
5099 cx.theme().colors().scrollbar_track_background,
5100 Edges {
5101 top: Pixels::ZERO,
5102 right: Pixels::ZERO,
5103 bottom: Pixels::ZERO,
5104 left: ScrollbarLayout::BORDER_WIDTH,
5105 },
5106 cx.theme().colors().scrollbar_track_border,
5107 ));
5108
5109 let fast_markers =
5110 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5111 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5112 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5113
5114 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5115 for marker in markers.iter().chain(&fast_markers) {
5116 let mut marker = marker.clone();
5117 marker.bounds.origin += hitbox.origin;
5118 window.paint_quad(marker);
5119 }
5120
5121 window.paint_quad(quad(
5122 thumb_bounds,
5123 Corners::default(),
5124 cx.theme().colors().scrollbar_thumb_background,
5125 Edges {
5126 top: Pixels::ZERO,
5127 right: Pixels::ZERO,
5128 bottom: Pixels::ZERO,
5129 left: ScrollbarLayout::BORDER_WIDTH,
5130 },
5131 cx.theme().colors().scrollbar_thumb_border,
5132 ));
5133 });
5134 }
5135
5136 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5137
5138 window.on_mouse_event({
5139 let editor = self.editor.clone();
5140
5141 let hitbox = hitbox.clone();
5142
5143 let mut mouse_position = window.mouse_position();
5144 move |event: &MouseMoveEvent, phase, window, cx| {
5145 if phase == DispatchPhase::Capture {
5146 return;
5147 }
5148
5149 editor.update(cx, |editor, cx| {
5150 if event.pressed_button == Some(MouseButton::Left)
5151 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5152 {
5153 let y = mouse_position.y;
5154 let new_y = event.position.y;
5155 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5156 let mut position = editor.scroll_position(cx);
5157 position.y += (new_y - y) / text_unit_size;
5158 if position.y < 0.0 {
5159 position.y = 0.0;
5160 }
5161 editor.set_scroll_position(position, window, cx);
5162 }
5163 } else {
5164 editor.scroll_manager.set_is_dragging_scrollbar(
5165 Axis::Vertical,
5166 false,
5167 cx,
5168 );
5169
5170 if hitbox.is_hovered(window) {
5171 editor.scroll_manager.show_scrollbar(window, cx);
5172 }
5173 }
5174 mouse_position = event.position;
5175 })
5176 }
5177 });
5178
5179 if self
5180 .editor
5181 .read(cx)
5182 .scroll_manager
5183 .is_dragging_scrollbar(Axis::Vertical)
5184 {
5185 window.on_mouse_event({
5186 let editor = self.editor.clone();
5187 move |_: &MouseUpEvent, phase, _, cx| {
5188 if phase == DispatchPhase::Capture {
5189 return;
5190 }
5191
5192 editor.update(cx, |editor, cx| {
5193 editor.scroll_manager.set_is_dragging_scrollbar(
5194 Axis::Vertical,
5195 false,
5196 cx,
5197 );
5198 cx.stop_propagation();
5199 });
5200 }
5201 });
5202 } else {
5203 window.on_mouse_event({
5204 let editor = self.editor.clone();
5205
5206 move |event: &MouseDownEvent, phase, window, cx| {
5207 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5208 return;
5209 }
5210
5211 editor.update(cx, |editor, cx| {
5212 editor.scroll_manager.set_is_dragging_scrollbar(
5213 Axis::Vertical,
5214 true,
5215 cx,
5216 );
5217
5218 let y = event.position.y;
5219 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5220 let center_row =
5221 ((y - hitbox.top()) / text_unit_size).round() as u32;
5222 let top_row = center_row.saturating_sub(
5223 (visible_range.end - visible_range.start) as u32 / 2,
5224 );
5225 let mut position = editor.scroll_position(cx);
5226 position.y = top_row as f32;
5227 editor.set_scroll_position(position, window, cx);
5228 } else {
5229 editor.scroll_manager.show_scrollbar(window, cx);
5230 }
5231
5232 cx.stop_propagation();
5233 });
5234 }
5235 });
5236 }
5237 }
5238 }
5239
5240 fn collect_fast_scrollbar_markers(
5241 &self,
5242 layout: &EditorLayout,
5243 scrollbar_layout: &ScrollbarLayout,
5244 cx: &mut App,
5245 ) -> Vec<PaintQuad> {
5246 const LIMIT: usize = 100;
5247 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5248 return vec![];
5249 }
5250 let cursor_ranges = layout
5251 .cursors
5252 .iter()
5253 .map(|(point, color)| ColoredRange {
5254 start: point.row(),
5255 end: point.row(),
5256 color: *color,
5257 })
5258 .collect_vec();
5259 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5260 }
5261
5262 fn refresh_slow_scrollbar_markers(
5263 &self,
5264 layout: &EditorLayout,
5265 scrollbar_layout: &ScrollbarLayout,
5266 window: &mut Window,
5267 cx: &mut App,
5268 ) {
5269 self.editor.update(cx, |editor, cx| {
5270 if !editor.is_singleton(cx)
5271 || !editor
5272 .scrollbar_marker_state
5273 .should_refresh(scrollbar_layout.hitbox.size)
5274 {
5275 return;
5276 }
5277
5278 let scrollbar_layout = scrollbar_layout.clone();
5279 let background_highlights = editor.background_highlights.clone();
5280 let snapshot = layout.position_map.snapshot.clone();
5281 let theme = cx.theme().clone();
5282 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5283
5284 editor.scrollbar_marker_state.dirty = false;
5285 editor.scrollbar_marker_state.pending_refresh =
5286 Some(cx.spawn_in(window, |editor, mut cx| async move {
5287 let scrollbar_size = scrollbar_layout.hitbox.size;
5288 let scrollbar_markers = cx
5289 .background_spawn(async move {
5290 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5291 let mut marker_quads = Vec::new();
5292 if scrollbar_settings.git_diff {
5293 let marker_row_ranges =
5294 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5295 let start_display_row =
5296 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5297 .to_display_point(&snapshot.display_snapshot)
5298 .row();
5299 let mut end_display_row =
5300 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5301 .to_display_point(&snapshot.display_snapshot)
5302 .row();
5303 if end_display_row != start_display_row {
5304 end_display_row.0 -= 1;
5305 }
5306 let color = match &hunk.status() {
5307 DiffHunkStatus::Added(_) => theme.status().created,
5308 DiffHunkStatus::Modified(_) => theme.status().modified,
5309 DiffHunkStatus::Removed(_) => theme.status().deleted,
5310 };
5311 ColoredRange {
5312 start: start_display_row,
5313 end: end_display_row,
5314 color,
5315 }
5316 });
5317
5318 marker_quads.extend(
5319 scrollbar_layout
5320 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5321 );
5322 }
5323
5324 for (background_highlight_id, (_, background_ranges)) in
5325 background_highlights.iter()
5326 {
5327 let is_search_highlights = *background_highlight_id
5328 == TypeId::of::<BufferSearchHighlights>();
5329 let is_text_highlights = *background_highlight_id
5330 == TypeId::of::<SelectedTextHighlight>();
5331 let is_symbol_occurrences = *background_highlight_id
5332 == TypeId::of::<DocumentHighlightRead>()
5333 || *background_highlight_id
5334 == TypeId::of::<DocumentHighlightWrite>();
5335 if (is_search_highlights && scrollbar_settings.search_results)
5336 || (is_text_highlights && scrollbar_settings.selected_text)
5337 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5338 {
5339 let mut color = theme.status().info;
5340 if is_symbol_occurrences {
5341 color.fade_out(0.5);
5342 }
5343 let marker_row_ranges = background_ranges.iter().map(|range| {
5344 let display_start = range
5345 .start
5346 .to_display_point(&snapshot.display_snapshot);
5347 let display_end =
5348 range.end.to_display_point(&snapshot.display_snapshot);
5349 ColoredRange {
5350 start: display_start.row(),
5351 end: display_end.row(),
5352 color,
5353 }
5354 });
5355 marker_quads.extend(
5356 scrollbar_layout
5357 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5358 );
5359 }
5360 }
5361
5362 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5363 let diagnostics = snapshot
5364 .buffer_snapshot
5365 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5366 // Don't show diagnostics the user doesn't care about
5367 .filter(|diagnostic| {
5368 match (
5369 scrollbar_settings.diagnostics,
5370 diagnostic.diagnostic.severity,
5371 ) {
5372 (ScrollbarDiagnostics::All, _) => true,
5373 (
5374 ScrollbarDiagnostics::Error,
5375 DiagnosticSeverity::ERROR,
5376 ) => true,
5377 (
5378 ScrollbarDiagnostics::Warning,
5379 DiagnosticSeverity::ERROR
5380 | DiagnosticSeverity::WARNING,
5381 ) => true,
5382 (
5383 ScrollbarDiagnostics::Information,
5384 DiagnosticSeverity::ERROR
5385 | DiagnosticSeverity::WARNING
5386 | DiagnosticSeverity::INFORMATION,
5387 ) => true,
5388 (_, _) => false,
5389 }
5390 })
5391 // We want to sort by severity, in order to paint the most severe diagnostics last.
5392 .sorted_by_key(|diagnostic| {
5393 std::cmp::Reverse(diagnostic.diagnostic.severity)
5394 });
5395
5396 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5397 let start_display = diagnostic
5398 .range
5399 .start
5400 .to_display_point(&snapshot.display_snapshot);
5401 let end_display = diagnostic
5402 .range
5403 .end
5404 .to_display_point(&snapshot.display_snapshot);
5405 let color = match diagnostic.diagnostic.severity {
5406 DiagnosticSeverity::ERROR => theme.status().error,
5407 DiagnosticSeverity::WARNING => theme.status().warning,
5408 DiagnosticSeverity::INFORMATION => theme.status().info,
5409 _ => theme.status().hint,
5410 };
5411 ColoredRange {
5412 start: start_display.row(),
5413 end: end_display.row(),
5414 color,
5415 }
5416 });
5417 marker_quads.extend(
5418 scrollbar_layout
5419 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5420 );
5421 }
5422
5423 Arc::from(marker_quads)
5424 })
5425 .await;
5426
5427 editor.update(&mut cx, |editor, cx| {
5428 editor.scrollbar_marker_state.markers = scrollbar_markers;
5429 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5430 editor.scrollbar_marker_state.pending_refresh = None;
5431 cx.notify();
5432 })?;
5433
5434 Ok(())
5435 }));
5436 });
5437 }
5438
5439 #[allow(clippy::too_many_arguments)]
5440 fn paint_highlighted_range(
5441 &self,
5442 range: Range<DisplayPoint>,
5443 color: Hsla,
5444 corner_radius: Pixels,
5445 line_end_overshoot: Pixels,
5446 layout: &EditorLayout,
5447 window: &mut Window,
5448 ) {
5449 let start_row = layout.visible_display_row_range.start;
5450 let end_row = layout.visible_display_row_range.end;
5451 if range.start != range.end {
5452 let row_range = if range.end.column() == 0 {
5453 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5454 } else {
5455 cmp::max(range.start.row(), start_row)
5456 ..cmp::min(range.end.row().next_row(), end_row)
5457 };
5458
5459 let highlighted_range = HighlightedRange {
5460 color,
5461 line_height: layout.position_map.line_height,
5462 corner_radius,
5463 start_y: layout.content_origin.y
5464 + row_range.start.as_f32() * layout.position_map.line_height
5465 - layout.position_map.scroll_pixel_position.y,
5466 lines: row_range
5467 .iter_rows()
5468 .map(|row| {
5469 let line_layout =
5470 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5471 HighlightedRangeLine {
5472 start_x: if row == range.start.row() {
5473 layout.content_origin.x
5474 + line_layout.x_for_index(range.start.column() as usize)
5475 - layout.position_map.scroll_pixel_position.x
5476 } else {
5477 layout.content_origin.x
5478 - layout.position_map.scroll_pixel_position.x
5479 },
5480 end_x: if row == range.end.row() {
5481 layout.content_origin.x
5482 + line_layout.x_for_index(range.end.column() as usize)
5483 - layout.position_map.scroll_pixel_position.x
5484 } else {
5485 layout.content_origin.x + line_layout.width + line_end_overshoot
5486 - layout.position_map.scroll_pixel_position.x
5487 },
5488 }
5489 })
5490 .collect(),
5491 };
5492
5493 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5494 }
5495 }
5496
5497 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5498 if let Some(mut inline_blame) = layout.inline_blame.take() {
5499 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5500 inline_blame.paint(window, cx);
5501 })
5502 }
5503 }
5504
5505 fn paint_diff_hunk_controls(
5506 &mut self,
5507 layout: &mut EditorLayout,
5508 window: &mut Window,
5509 cx: &mut App,
5510 ) {
5511 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5512 diff_hunk_control.paint(window, cx);
5513 }
5514 }
5515
5516 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5517 for mut block in layout.blocks.drain(..) {
5518 block.element.paint(window, cx);
5519 }
5520 }
5521
5522 fn paint_inline_completion_popover(
5523 &mut self,
5524 layout: &mut EditorLayout,
5525 window: &mut Window,
5526 cx: &mut App,
5527 ) {
5528 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5529 inline_completion_popover.paint(window, cx);
5530 }
5531 }
5532
5533 fn paint_mouse_context_menu(
5534 &mut self,
5535 layout: &mut EditorLayout,
5536 window: &mut Window,
5537 cx: &mut App,
5538 ) {
5539 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5540 mouse_context_menu.paint(window, cx);
5541 }
5542 }
5543
5544 fn paint_scroll_wheel_listener(
5545 &mut self,
5546 layout: &EditorLayout,
5547 window: &mut Window,
5548 cx: &mut App,
5549 ) {
5550 window.on_mouse_event({
5551 let position_map = layout.position_map.clone();
5552 let editor = self.editor.clone();
5553 let hitbox = layout.hitbox.clone();
5554 let mut delta = ScrollDelta::default();
5555
5556 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5557 // accidentally turn off their scrolling.
5558 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5559
5560 move |event: &ScrollWheelEvent, phase, window, cx| {
5561 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5562 delta = delta.coalesce(event.delta);
5563 editor.update(cx, |editor, cx| {
5564 let position_map: &PositionMap = &position_map;
5565
5566 let line_height = position_map.line_height;
5567 let max_glyph_width = position_map.em_width;
5568 let (delta, axis) = match delta {
5569 gpui::ScrollDelta::Pixels(mut pixels) => {
5570 //Trackpad
5571 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5572 (pixels, axis)
5573 }
5574
5575 gpui::ScrollDelta::Lines(lines) => {
5576 //Not trackpad
5577 let pixels =
5578 point(lines.x * max_glyph_width, lines.y * line_height);
5579 (pixels, None)
5580 }
5581 };
5582
5583 let current_scroll_position = position_map.snapshot.scroll_position();
5584 let x = (current_scroll_position.x * max_glyph_width
5585 - (delta.x * scroll_sensitivity))
5586 / max_glyph_width;
5587 let y = (current_scroll_position.y * line_height
5588 - (delta.y * scroll_sensitivity))
5589 / line_height;
5590 let mut scroll_position =
5591 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5592 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5593 if forbid_vertical_scroll {
5594 scroll_position.y = current_scroll_position.y;
5595 }
5596
5597 if scroll_position != current_scroll_position {
5598 editor.scroll(scroll_position, axis, window, cx);
5599 cx.stop_propagation();
5600 } else if y < 0. {
5601 // Due to clamping, we may fail to detect cases of overscroll to the top;
5602 // We want the scroll manager to get an update in such cases and detect the change of direction
5603 // on the next frame.
5604 cx.notify();
5605 }
5606 });
5607 }
5608 }
5609 });
5610 }
5611
5612 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5613 self.paint_scroll_wheel_listener(layout, window, cx);
5614
5615 window.on_mouse_event({
5616 let position_map = layout.position_map.clone();
5617 let editor = self.editor.clone();
5618 let diff_hunk_range =
5619 layout
5620 .display_hunks
5621 .iter()
5622 .find_map(|(hunk, hunk_hitbox)| match hunk {
5623 DisplayDiffHunk::Folded { .. } => None,
5624 DisplayDiffHunk::Unfolded {
5625 multi_buffer_range, ..
5626 } => {
5627 if hunk_hitbox
5628 .as_ref()
5629 .map(|hitbox| hitbox.is_hovered(window))
5630 .unwrap_or(false)
5631 {
5632 Some(multi_buffer_range.clone())
5633 } else {
5634 None
5635 }
5636 }
5637 });
5638 let line_numbers = layout.line_numbers.clone();
5639
5640 move |event: &MouseDownEvent, phase, window, cx| {
5641 if phase == DispatchPhase::Bubble {
5642 match event.button {
5643 MouseButton::Left => editor.update(cx, |editor, cx| {
5644 let pending_mouse_down = editor
5645 .pending_mouse_down
5646 .get_or_insert_with(Default::default)
5647 .clone();
5648
5649 *pending_mouse_down.borrow_mut() = Some(event.clone());
5650
5651 Self::mouse_left_down(
5652 editor,
5653 event,
5654 diff_hunk_range.clone(),
5655 &position_map,
5656 line_numbers.as_ref(),
5657 window,
5658 cx,
5659 );
5660 }),
5661 MouseButton::Right => editor.update(cx, |editor, cx| {
5662 Self::mouse_right_down(editor, event, &position_map, window, cx);
5663 }),
5664 MouseButton::Middle => editor.update(cx, |editor, cx| {
5665 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5666 }),
5667 _ => {}
5668 };
5669 }
5670 }
5671 });
5672
5673 window.on_mouse_event({
5674 let editor = self.editor.clone();
5675 let position_map = layout.position_map.clone();
5676
5677 move |event: &MouseUpEvent, phase, window, cx| {
5678 if phase == DispatchPhase::Bubble {
5679 editor.update(cx, |editor, cx| {
5680 Self::mouse_up(editor, event, &position_map, window, cx)
5681 });
5682 }
5683 }
5684 });
5685
5686 window.on_mouse_event({
5687 let editor = self.editor.clone();
5688 let position_map = layout.position_map.clone();
5689 let mut captured_mouse_down = None;
5690
5691 move |event: &MouseUpEvent, phase, window, cx| match phase {
5692 // Clear the pending mouse down during the capture phase,
5693 // so that it happens even if another event handler stops
5694 // propagation.
5695 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5696 let pending_mouse_down = editor
5697 .pending_mouse_down
5698 .get_or_insert_with(Default::default)
5699 .clone();
5700
5701 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5702 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5703 captured_mouse_down = pending_mouse_down.take();
5704 window.refresh();
5705 }
5706 }),
5707 // Fire click handlers during the bubble phase.
5708 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5709 if let Some(mouse_down) = captured_mouse_down.take() {
5710 let event = ClickEvent {
5711 down: mouse_down,
5712 up: event.clone(),
5713 };
5714 Self::click(editor, &event, &position_map, window, cx);
5715 }
5716 }),
5717 }
5718 });
5719
5720 window.on_mouse_event({
5721 let position_map = layout.position_map.clone();
5722 let editor = self.editor.clone();
5723
5724 move |event: &MouseMoveEvent, phase, window, cx| {
5725 if phase == DispatchPhase::Bubble {
5726 editor.update(cx, |editor, cx| {
5727 if editor.hover_state.focused(window, cx) {
5728 return;
5729 }
5730 if event.pressed_button == Some(MouseButton::Left)
5731 || event.pressed_button == Some(MouseButton::Middle)
5732 {
5733 Self::mouse_dragged(editor, event, &position_map, window, cx)
5734 }
5735
5736 Self::mouse_moved(editor, event, &position_map, window, cx)
5737 });
5738 }
5739 }
5740 });
5741 }
5742
5743 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5744 bounds.top_right().x - self.style.scrollbar_width
5745 }
5746
5747 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5748 let style = &self.style;
5749 let font_size = style.text.font_size.to_pixels(window.rem_size());
5750 let layout = window
5751 .text_system()
5752 .shape_line(
5753 SharedString::from(" ".repeat(column)),
5754 font_size,
5755 &[TextRun {
5756 len: column,
5757 font: style.text.font(),
5758 color: Hsla::default(),
5759 background_color: None,
5760 underline: None,
5761 strikethrough: None,
5762 }],
5763 )
5764 .unwrap();
5765
5766 layout.width
5767 }
5768
5769 fn max_line_number_width(
5770 &self,
5771 snapshot: &EditorSnapshot,
5772 window: &mut Window,
5773 cx: &mut App,
5774 ) -> Pixels {
5775 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5776 self.column_pixels(digit_count, window, cx)
5777 }
5778
5779 fn shape_line_number(
5780 &self,
5781 text: SharedString,
5782 color: Hsla,
5783 window: &mut Window,
5784 ) -> anyhow::Result<ShapedLine> {
5785 let run = TextRun {
5786 len: text.len(),
5787 font: self.style.text.font(),
5788 color,
5789 background_color: None,
5790 underline: None,
5791 strikethrough: None,
5792 };
5793 window.text_system().shape_line(
5794 text,
5795 self.style.text.font_size.to_pixels(window.rem_size()),
5796 &[run],
5797 )
5798 }
5799}
5800
5801fn header_jump_data(
5802 snapshot: &EditorSnapshot,
5803 block_row_start: DisplayRow,
5804 height: u32,
5805 for_excerpt: &ExcerptInfo,
5806) -> JumpData {
5807 let range = &for_excerpt.range;
5808 let buffer = &for_excerpt.buffer;
5809 let jump_anchor = range
5810 .primary
5811 .as_ref()
5812 .map_or(range.context.start, |primary| primary.start);
5813
5814 let excerpt_start = range.context.start;
5815 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5816 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5817 0
5818 } else {
5819 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5820 jump_position.row.saturating_sub(excerpt_start_point.row)
5821 };
5822
5823 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5824 .saturating_sub(
5825 snapshot
5826 .scroll_anchor
5827 .scroll_position(&snapshot.display_snapshot)
5828 .y as u32,
5829 );
5830
5831 JumpData::MultiBufferPoint {
5832 excerpt_id: for_excerpt.id,
5833 anchor: jump_anchor,
5834 position: jump_position,
5835 line_offset_from_top,
5836 }
5837}
5838
5839pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5840
5841impl AcceptEditPredictionBinding {
5842 pub fn keystroke(&self) -> Option<&Keystroke> {
5843 if let Some(binding) = self.0.as_ref() {
5844 match &binding.keystrokes() {
5845 [keystroke] => Some(keystroke),
5846 _ => None,
5847 }
5848 } else {
5849 None
5850 }
5851 }
5852}
5853
5854#[allow(clippy::too_many_arguments)]
5855fn prepaint_gutter_button(
5856 button: IconButton,
5857 row: DisplayRow,
5858 line_height: Pixels,
5859 gutter_dimensions: &GutterDimensions,
5860 scroll_pixel_position: gpui::Point<Pixels>,
5861 gutter_hitbox: &Hitbox,
5862 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5863 window: &mut Window,
5864 cx: &mut App,
5865) -> AnyElement {
5866 let mut button = button.into_any_element();
5867 let available_space = size(
5868 AvailableSpace::MinContent,
5869 AvailableSpace::Definite(line_height),
5870 );
5871 let indicator_size = button.layout_as_root(available_space, window, cx);
5872
5873 let blame_width = gutter_dimensions.git_blame_entries_width;
5874 let gutter_width = rows_with_hunk_bounds
5875 .get(&row)
5876 .map(|bounds| bounds.size.width);
5877 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5878
5879 let mut x = left_offset;
5880 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5881 - indicator_size.width
5882 - left_offset;
5883 x += available_width / 2.;
5884
5885 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5886 y += (line_height - indicator_size.height) / 2.;
5887
5888 button.prepaint_as_root(
5889 gutter_hitbox.origin + point(x, y),
5890 available_space,
5891 window,
5892 cx,
5893 );
5894 button
5895}
5896
5897fn render_inline_blame_entry(
5898 blame: &gpui::Entity<GitBlame>,
5899 blame_entry: BlameEntry,
5900 style: &EditorStyle,
5901 workspace: Option<WeakEntity<Workspace>>,
5902 cx: &mut App,
5903) -> AnyElement {
5904 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5905
5906 let author = blame_entry.author.as_deref().unwrap_or_default();
5907 let summary_enabled = ProjectSettings::get_global(cx)
5908 .git
5909 .show_inline_commit_summary();
5910
5911 let text = match blame_entry.summary.as_ref() {
5912 Some(summary) if summary_enabled => {
5913 format!("{}, {} - {}", author, relative_timestamp, summary)
5914 }
5915 _ => format!("{}, {}", author, relative_timestamp),
5916 };
5917
5918 let details = blame.read(cx).details_for_entry(&blame_entry);
5919
5920 let tooltip =
5921 cx.new(|_| CommitTooltip::blame_entry(blame_entry, details, style.clone(), workspace));
5922
5923 h_flex()
5924 .id("inline-blame")
5925 .w_full()
5926 .font_family(style.text.font().family)
5927 .text_color(cx.theme().status().hint)
5928 .line_height(style.text.line_height)
5929 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5930 .child(text)
5931 .gap_2()
5932 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5933 .into_any()
5934}
5935
5936fn render_blame_entry(
5937 ix: usize,
5938 blame: &gpui::Entity<GitBlame>,
5939 blame_entry: BlameEntry,
5940 style: &EditorStyle,
5941 last_used_color: &mut Option<(PlayerColor, Oid)>,
5942 editor: Entity<Editor>,
5943 cx: &mut App,
5944) -> AnyElement {
5945 let mut sha_color = cx
5946 .theme()
5947 .players()
5948 .color_for_participant(blame_entry.sha.into());
5949 // If the last color we used is the same as the one we get for this line, but
5950 // the commit SHAs are different, then we try again to get a different color.
5951 match *last_used_color {
5952 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5953 let index: u32 = blame_entry.sha.into();
5954 sha_color = cx.theme().players().color_for_participant(index + 1);
5955 }
5956 _ => {}
5957 };
5958 last_used_color.replace((sha_color, blame_entry.sha));
5959
5960 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5961
5962 let short_commit_id = blame_entry.sha.display_short();
5963
5964 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5965 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5966
5967 let details = blame.read(cx).details_for_entry(&blame_entry);
5968
5969 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5970
5971 let tooltip = cx.new(|_| {
5972 CommitTooltip::blame_entry(
5973 blame_entry.clone(),
5974 details.clone(),
5975 style.clone(),
5976 workspace,
5977 )
5978 });
5979
5980 h_flex()
5981 .w_full()
5982 .justify_between()
5983 .font_family(style.text.font().family)
5984 .line_height(style.text.line_height)
5985 .id(("blame", ix))
5986 .text_color(cx.theme().status().hint)
5987 .pr_2()
5988 .gap_2()
5989 .child(
5990 h_flex()
5991 .items_center()
5992 .gap_2()
5993 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5994 .child(name),
5995 )
5996 .child(relative_timestamp)
5997 .on_mouse_down(MouseButton::Right, {
5998 let blame_entry = blame_entry.clone();
5999 let details = details.clone();
6000 move |event, window, cx| {
6001 deploy_blame_entry_context_menu(
6002 &blame_entry,
6003 details.as_ref(),
6004 editor.clone(),
6005 event.position,
6006 window,
6007 cx,
6008 );
6009 }
6010 })
6011 .hover(|style| style.bg(cx.theme().colors().element_hover))
6012 .when_some(
6013 details.and_then(|details| details.permalink),
6014 |this, url| {
6015 let url = url.clone();
6016 this.cursor_pointer().on_click(move |_, _, cx| {
6017 cx.stop_propagation();
6018 cx.open_url(url.as_str())
6019 })
6020 },
6021 )
6022 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6023 .into_any()
6024}
6025
6026fn deploy_blame_entry_context_menu(
6027 blame_entry: &BlameEntry,
6028 details: Option<&ParsedCommitMessage>,
6029 editor: Entity<Editor>,
6030 position: gpui::Point<Pixels>,
6031 window: &mut Window,
6032 cx: &mut App,
6033) {
6034 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6035 let sha = format!("{}", blame_entry.sha);
6036 menu.on_blur_subscription(Subscription::new(|| {}))
6037 .entry("Copy commit SHA", None, move |_, cx| {
6038 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6039 })
6040 .when_some(
6041 details.and_then(|details| details.permalink.clone()),
6042 |this, url| {
6043 this.entry("Open permalink", None, move |_, cx| {
6044 cx.open_url(url.as_str())
6045 })
6046 },
6047 )
6048 });
6049
6050 editor.update(cx, move |editor, cx| {
6051 editor.mouse_context_menu = Some(MouseContextMenu::new(
6052 MenuPosition::PinnedToScreen(position),
6053 context_menu,
6054 window,
6055 cx,
6056 ));
6057 cx.notify();
6058 });
6059}
6060
6061#[derive(Debug)]
6062pub(crate) struct LineWithInvisibles {
6063 fragments: SmallVec<[LineFragment; 1]>,
6064 invisibles: Vec<Invisible>,
6065 len: usize,
6066 width: Pixels,
6067 font_size: Pixels,
6068}
6069
6070#[allow(clippy::large_enum_variant)]
6071enum LineFragment {
6072 Text(ShapedLine),
6073 Element {
6074 element: Option<AnyElement>,
6075 size: Size<Pixels>,
6076 len: usize,
6077 },
6078}
6079
6080impl fmt::Debug for LineFragment {
6081 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6082 match self {
6083 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6084 LineFragment::Element { size, len, .. } => f
6085 .debug_struct("Element")
6086 .field("size", size)
6087 .field("len", len)
6088 .finish(),
6089 }
6090 }
6091}
6092
6093impl LineWithInvisibles {
6094 #[allow(clippy::too_many_arguments)]
6095 fn from_chunks<'a>(
6096 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6097 editor_style: &EditorStyle,
6098 max_line_len: usize,
6099 max_line_count: usize,
6100 editor_mode: EditorMode,
6101 text_width: Pixels,
6102 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6103 window: &mut Window,
6104 cx: &mut App,
6105 ) -> Vec<Self> {
6106 let text_style = &editor_style.text;
6107 let mut layouts = Vec::with_capacity(max_line_count);
6108 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6109 let mut line = String::new();
6110 let mut invisibles = Vec::new();
6111 let mut width = Pixels::ZERO;
6112 let mut len = 0;
6113 let mut styles = Vec::new();
6114 let mut non_whitespace_added = false;
6115 let mut row = 0;
6116 let mut line_exceeded_max_len = false;
6117 let font_size = text_style.font_size.to_pixels(window.rem_size());
6118
6119 let ellipsis = SharedString::from("⋯");
6120
6121 for highlighted_chunk in chunks.chain([HighlightedChunk {
6122 text: "\n",
6123 style: None,
6124 is_tab: false,
6125 replacement: None,
6126 }]) {
6127 if let Some(replacement) = highlighted_chunk.replacement {
6128 if !line.is_empty() {
6129 let shaped_line = window
6130 .text_system()
6131 .shape_line(line.clone().into(), font_size, &styles)
6132 .unwrap();
6133 width += shaped_line.width;
6134 len += shaped_line.len;
6135 fragments.push(LineFragment::Text(shaped_line));
6136 line.clear();
6137 styles.clear();
6138 }
6139
6140 match replacement {
6141 ChunkReplacement::Renderer(renderer) => {
6142 let available_width = if renderer.constrain_width {
6143 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6144 ellipsis.clone()
6145 } else {
6146 SharedString::from(Arc::from(highlighted_chunk.text))
6147 };
6148 let shaped_line = window
6149 .text_system()
6150 .shape_line(
6151 chunk,
6152 font_size,
6153 &[text_style.to_run(highlighted_chunk.text.len())],
6154 )
6155 .unwrap();
6156 AvailableSpace::Definite(shaped_line.width)
6157 } else {
6158 AvailableSpace::MinContent
6159 };
6160
6161 let mut element = (renderer.render)(&mut ChunkRendererContext {
6162 context: cx,
6163 window,
6164 max_width: text_width,
6165 });
6166 let line_height = text_style.line_height_in_pixels(window.rem_size());
6167 let size = element.layout_as_root(
6168 size(available_width, AvailableSpace::Definite(line_height)),
6169 window,
6170 cx,
6171 );
6172
6173 width += size.width;
6174 len += highlighted_chunk.text.len();
6175 fragments.push(LineFragment::Element {
6176 element: Some(element),
6177 size,
6178 len: highlighted_chunk.text.len(),
6179 });
6180 }
6181 ChunkReplacement::Str(x) => {
6182 let text_style = if let Some(style) = highlighted_chunk.style {
6183 Cow::Owned(text_style.clone().highlight(style))
6184 } else {
6185 Cow::Borrowed(text_style)
6186 };
6187
6188 let run = TextRun {
6189 len: x.len(),
6190 font: text_style.font(),
6191 color: text_style.color,
6192 background_color: text_style.background_color,
6193 underline: text_style.underline,
6194 strikethrough: text_style.strikethrough,
6195 };
6196 let line_layout = window
6197 .text_system()
6198 .shape_line(x, font_size, &[run])
6199 .unwrap()
6200 .with_len(highlighted_chunk.text.len());
6201
6202 width += line_layout.width;
6203 len += highlighted_chunk.text.len();
6204 fragments.push(LineFragment::Text(line_layout))
6205 }
6206 }
6207 } else {
6208 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6209 if ix > 0 {
6210 let shaped_line = window
6211 .text_system()
6212 .shape_line(line.clone().into(), font_size, &styles)
6213 .unwrap();
6214 width += shaped_line.width;
6215 len += shaped_line.len;
6216 fragments.push(LineFragment::Text(shaped_line));
6217 layouts.push(Self {
6218 width: mem::take(&mut width),
6219 len: mem::take(&mut len),
6220 fragments: mem::take(&mut fragments),
6221 invisibles: std::mem::take(&mut invisibles),
6222 font_size,
6223 });
6224
6225 line.clear();
6226 styles.clear();
6227 row += 1;
6228 line_exceeded_max_len = false;
6229 non_whitespace_added = false;
6230 if row == max_line_count {
6231 return layouts;
6232 }
6233 }
6234
6235 if !line_chunk.is_empty() && !line_exceeded_max_len {
6236 let text_style = if let Some(style) = highlighted_chunk.style {
6237 Cow::Owned(text_style.clone().highlight(style))
6238 } else {
6239 Cow::Borrowed(text_style)
6240 };
6241
6242 if line.len() + line_chunk.len() > max_line_len {
6243 let mut chunk_len = max_line_len - line.len();
6244 while !line_chunk.is_char_boundary(chunk_len) {
6245 chunk_len -= 1;
6246 }
6247 line_chunk = &line_chunk[..chunk_len];
6248 line_exceeded_max_len = true;
6249 }
6250
6251 styles.push(TextRun {
6252 len: line_chunk.len(),
6253 font: text_style.font(),
6254 color: text_style.color,
6255 background_color: text_style.background_color,
6256 underline: text_style.underline,
6257 strikethrough: text_style.strikethrough,
6258 });
6259
6260 if editor_mode == EditorMode::Full {
6261 // Line wrap pads its contents with fake whitespaces,
6262 // avoid printing them
6263 let is_soft_wrapped = is_row_soft_wrapped(row);
6264 if highlighted_chunk.is_tab {
6265 if non_whitespace_added || !is_soft_wrapped {
6266 invisibles.push(Invisible::Tab {
6267 line_start_offset: line.len(),
6268 line_end_offset: line.len() + line_chunk.len(),
6269 });
6270 }
6271 } else {
6272 invisibles.extend(line_chunk.char_indices().filter_map(
6273 |(index, c)| {
6274 let is_whitespace = c.is_whitespace();
6275 non_whitespace_added |= !is_whitespace;
6276 if is_whitespace
6277 && (non_whitespace_added || !is_soft_wrapped)
6278 {
6279 Some(Invisible::Whitespace {
6280 line_offset: line.len() + index,
6281 })
6282 } else {
6283 None
6284 }
6285 },
6286 ))
6287 }
6288 }
6289
6290 line.push_str(line_chunk);
6291 }
6292 }
6293 }
6294 }
6295
6296 layouts
6297 }
6298
6299 #[allow(clippy::too_many_arguments)]
6300 fn prepaint(
6301 &mut self,
6302 line_height: Pixels,
6303 scroll_pixel_position: gpui::Point<Pixels>,
6304 row: DisplayRow,
6305 content_origin: gpui::Point<Pixels>,
6306 line_elements: &mut SmallVec<[AnyElement; 1]>,
6307 window: &mut Window,
6308 cx: &mut App,
6309 ) {
6310 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6311 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6312 for fragment in &mut self.fragments {
6313 match fragment {
6314 LineFragment::Text(line) => {
6315 fragment_origin.x += line.width;
6316 }
6317 LineFragment::Element { element, size, .. } => {
6318 let mut element = element
6319 .take()
6320 .expect("you can't prepaint LineWithInvisibles twice");
6321
6322 // Center the element vertically within the line.
6323 let mut element_origin = fragment_origin;
6324 element_origin.y += (line_height - size.height) / 2.;
6325 element.prepaint_at(element_origin, window, cx);
6326 line_elements.push(element);
6327
6328 fragment_origin.x += size.width;
6329 }
6330 }
6331 }
6332 }
6333
6334 #[allow(clippy::too_many_arguments)]
6335 fn draw(
6336 &self,
6337 layout: &EditorLayout,
6338 row: DisplayRow,
6339 content_origin: gpui::Point<Pixels>,
6340 whitespace_setting: ShowWhitespaceSetting,
6341 selection_ranges: &[Range<DisplayPoint>],
6342 window: &mut Window,
6343 cx: &mut App,
6344 ) {
6345 let line_height = layout.position_map.line_height;
6346 let line_y = line_height
6347 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6348
6349 let mut fragment_origin =
6350 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6351
6352 for fragment in &self.fragments {
6353 match fragment {
6354 LineFragment::Text(line) => {
6355 line.paint(fragment_origin, line_height, window, cx)
6356 .log_err();
6357 fragment_origin.x += line.width;
6358 }
6359 LineFragment::Element { size, .. } => {
6360 fragment_origin.x += size.width;
6361 }
6362 }
6363 }
6364
6365 self.draw_invisibles(
6366 selection_ranges,
6367 layout,
6368 content_origin,
6369 line_y,
6370 row,
6371 line_height,
6372 whitespace_setting,
6373 window,
6374 cx,
6375 );
6376 }
6377
6378 #[allow(clippy::too_many_arguments)]
6379 fn draw_invisibles(
6380 &self,
6381 selection_ranges: &[Range<DisplayPoint>],
6382 layout: &EditorLayout,
6383 content_origin: gpui::Point<Pixels>,
6384 line_y: Pixels,
6385 row: DisplayRow,
6386 line_height: Pixels,
6387 whitespace_setting: ShowWhitespaceSetting,
6388 window: &mut Window,
6389 cx: &mut App,
6390 ) {
6391 let extract_whitespace_info = |invisible: &Invisible| {
6392 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6393 Invisible::Tab {
6394 line_start_offset,
6395 line_end_offset,
6396 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6397 Invisible::Whitespace { line_offset } => {
6398 (*line_offset, line_offset + 1, &layout.space_invisible)
6399 }
6400 };
6401
6402 let x_offset = self.x_for_index(token_offset);
6403 let invisible_offset =
6404 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6405 let origin = content_origin
6406 + gpui::point(
6407 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6408 line_y,
6409 );
6410
6411 (
6412 [token_offset, token_end_offset],
6413 Box::new(move |window: &mut Window, cx: &mut App| {
6414 invisible_symbol
6415 .paint(origin, line_height, window, cx)
6416 .log_err();
6417 }),
6418 )
6419 };
6420
6421 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6422 match whitespace_setting {
6423 ShowWhitespaceSetting::None => (),
6424 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6425 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6426 let invisible_point = DisplayPoint::new(row, start as u32);
6427 if !selection_ranges
6428 .iter()
6429 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6430 {
6431 return;
6432 }
6433
6434 paint(window, cx);
6435 }),
6436
6437 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6438 // - It is a tab
6439 // - It is adjacent to an edge (start or end)
6440 // - It is adjacent to a whitespace (left or right)
6441 ShowWhitespaceSetting::Boundary => {
6442 // 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
6443 // the above cases.
6444 // Note: We zip in the original `invisibles` to check for tab equality
6445 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6446 for (([start, end], paint), invisible) in
6447 invisible_iter.zip_eq(self.invisibles.iter())
6448 {
6449 let should_render = match (&last_seen, invisible) {
6450 (_, Invisible::Tab { .. }) => true,
6451 (Some((_, last_end, _)), _) => *last_end == start,
6452 _ => false,
6453 };
6454
6455 if should_render || start == 0 || end == self.len {
6456 paint(window, cx);
6457
6458 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6459 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6460 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6461 // Note that we need to make sure that the last one is actually adjacent
6462 if !should_render_last && last_end == start {
6463 paint_last(window, cx);
6464 }
6465 }
6466 }
6467
6468 // Manually render anything within a selection
6469 let invisible_point = DisplayPoint::new(row, start as u32);
6470 if selection_ranges.iter().any(|region| {
6471 region.start <= invisible_point && invisible_point < region.end
6472 }) {
6473 paint(window, cx);
6474 }
6475
6476 last_seen = Some((should_render, end, paint));
6477 }
6478 }
6479 }
6480 }
6481
6482 pub fn x_for_index(&self, index: usize) -> Pixels {
6483 let mut fragment_start_x = Pixels::ZERO;
6484 let mut fragment_start_index = 0;
6485
6486 for fragment in &self.fragments {
6487 match fragment {
6488 LineFragment::Text(shaped_line) => {
6489 let fragment_end_index = fragment_start_index + shaped_line.len;
6490 if index < fragment_end_index {
6491 return fragment_start_x
6492 + shaped_line.x_for_index(index - fragment_start_index);
6493 }
6494 fragment_start_x += shaped_line.width;
6495 fragment_start_index = fragment_end_index;
6496 }
6497 LineFragment::Element { len, size, .. } => {
6498 let fragment_end_index = fragment_start_index + len;
6499 if index < fragment_end_index {
6500 return fragment_start_x;
6501 }
6502 fragment_start_x += size.width;
6503 fragment_start_index = fragment_end_index;
6504 }
6505 }
6506 }
6507
6508 fragment_start_x
6509 }
6510
6511 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6512 let mut fragment_start_x = Pixels::ZERO;
6513 let mut fragment_start_index = 0;
6514
6515 for fragment in &self.fragments {
6516 match fragment {
6517 LineFragment::Text(shaped_line) => {
6518 let fragment_end_x = fragment_start_x + shaped_line.width;
6519 if x < fragment_end_x {
6520 return Some(
6521 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6522 );
6523 }
6524 fragment_start_x = fragment_end_x;
6525 fragment_start_index += shaped_line.len;
6526 }
6527 LineFragment::Element { len, size, .. } => {
6528 let fragment_end_x = fragment_start_x + size.width;
6529 if x < fragment_end_x {
6530 return Some(fragment_start_index);
6531 }
6532 fragment_start_index += len;
6533 fragment_start_x = fragment_end_x;
6534 }
6535 }
6536 }
6537
6538 None
6539 }
6540
6541 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6542 let mut fragment_start_index = 0;
6543
6544 for fragment in &self.fragments {
6545 match fragment {
6546 LineFragment::Text(shaped_line) => {
6547 let fragment_end_index = fragment_start_index + shaped_line.len;
6548 if index < fragment_end_index {
6549 return shaped_line.font_id_for_index(index - fragment_start_index);
6550 }
6551 fragment_start_index = fragment_end_index;
6552 }
6553 LineFragment::Element { len, .. } => {
6554 let fragment_end_index = fragment_start_index + len;
6555 if index < fragment_end_index {
6556 return None;
6557 }
6558 fragment_start_index = fragment_end_index;
6559 }
6560 }
6561 }
6562
6563 None
6564 }
6565}
6566
6567#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6568enum Invisible {
6569 /// A tab character
6570 ///
6571 /// A tab character is internally represented by spaces (configured by the user's tab width)
6572 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6573 /// adjacency checks.
6574 Tab {
6575 line_start_offset: usize,
6576 line_end_offset: usize,
6577 },
6578 Whitespace {
6579 line_offset: usize,
6580 },
6581}
6582
6583impl EditorElement {
6584 /// Returns the rem size to use when rendering the [`EditorElement`].
6585 ///
6586 /// This allows UI elements to scale based on the `buffer_font_size`.
6587 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6588 match self.editor.read(cx).mode {
6589 EditorMode::Full => {
6590 let buffer_font_size = self.style.text.font_size;
6591 match buffer_font_size {
6592 AbsoluteLength::Pixels(pixels) => {
6593 let rem_size_scale = {
6594 // Our default UI font size is 14px on a 16px base scale.
6595 // This means the default UI font size is 0.875rems.
6596 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6597
6598 // We then determine the delta between a single rem and the default font
6599 // size scale.
6600 let default_font_size_delta = 1. - default_font_size_scale;
6601
6602 // Finally, we add this delta to 1rem to get the scale factor that
6603 // should be used to scale up the UI.
6604 1. + default_font_size_delta
6605 };
6606
6607 Some(pixels * rem_size_scale)
6608 }
6609 AbsoluteLength::Rems(rems) => {
6610 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6611 }
6612 }
6613 }
6614 // We currently use single-line and auto-height editors in UI contexts,
6615 // so we don't want to scale everything with the buffer font size, as it
6616 // ends up looking off.
6617 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6618 }
6619 }
6620}
6621
6622impl Element for EditorElement {
6623 type RequestLayoutState = ();
6624 type PrepaintState = EditorLayout;
6625
6626 fn id(&self) -> Option<ElementId> {
6627 None
6628 }
6629
6630 fn request_layout(
6631 &mut self,
6632 _: Option<&GlobalElementId>,
6633 window: &mut Window,
6634 cx: &mut App,
6635 ) -> (gpui::LayoutId, ()) {
6636 let rem_size = self.rem_size(cx);
6637 window.with_rem_size(rem_size, |window| {
6638 self.editor.update(cx, |editor, cx| {
6639 editor.set_style(self.style.clone(), window, cx);
6640
6641 let layout_id = match editor.mode {
6642 EditorMode::SingleLine { auto_width } => {
6643 let rem_size = window.rem_size();
6644
6645 let height = self.style.text.line_height_in_pixels(rem_size);
6646 if auto_width {
6647 let editor_handle = cx.entity().clone();
6648 let style = self.style.clone();
6649 window.request_measured_layout(
6650 Style::default(),
6651 move |_, _, window, cx| {
6652 let editor_snapshot = editor_handle
6653 .update(cx, |editor, cx| editor.snapshot(window, cx));
6654 let line = Self::layout_lines(
6655 DisplayRow(0)..DisplayRow(1),
6656 &editor_snapshot,
6657 &style,
6658 px(f32::MAX),
6659 |_| false, // Single lines never soft wrap
6660 window,
6661 cx,
6662 )
6663 .pop()
6664 .unwrap();
6665
6666 let font_id =
6667 window.text_system().resolve_font(&style.text.font());
6668 let font_size =
6669 style.text.font_size.to_pixels(window.rem_size());
6670 let em_width =
6671 window.text_system().em_width(font_id, font_size).unwrap();
6672
6673 size(line.width + em_width, height)
6674 },
6675 )
6676 } else {
6677 let mut style = Style::default();
6678 style.size.height = height.into();
6679 style.size.width = relative(1.).into();
6680 window.request_layout(style, None, cx)
6681 }
6682 }
6683 EditorMode::AutoHeight { max_lines } => {
6684 let editor_handle = cx.entity().clone();
6685 let max_line_number_width =
6686 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6687 window.request_measured_layout(
6688 Style::default(),
6689 move |known_dimensions, available_space, window, cx| {
6690 editor_handle
6691 .update(cx, |editor, cx| {
6692 compute_auto_height_layout(
6693 editor,
6694 max_lines,
6695 max_line_number_width,
6696 known_dimensions,
6697 available_space.width,
6698 window,
6699 cx,
6700 )
6701 })
6702 .unwrap_or_default()
6703 },
6704 )
6705 }
6706 EditorMode::Full => {
6707 let mut style = Style::default();
6708 style.size.width = relative(1.).into();
6709 style.size.height = relative(1.).into();
6710 window.request_layout(style, None, cx)
6711 }
6712 };
6713
6714 (layout_id, ())
6715 })
6716 })
6717 }
6718
6719 fn prepaint(
6720 &mut self,
6721 _: Option<&GlobalElementId>,
6722 bounds: Bounds<Pixels>,
6723 _: &mut Self::RequestLayoutState,
6724 window: &mut Window,
6725 cx: &mut App,
6726 ) -> Self::PrepaintState {
6727 let text_style = TextStyleRefinement {
6728 font_size: Some(self.style.text.font_size),
6729 line_height: Some(self.style.text.line_height),
6730 ..Default::default()
6731 };
6732 let focus_handle = self.editor.focus_handle(cx);
6733 window.set_view_id(self.editor.entity_id());
6734 window.set_focus_handle(&focus_handle, cx);
6735
6736 let rem_size = self.rem_size(cx);
6737 window.with_rem_size(rem_size, |window| {
6738 window.with_text_style(Some(text_style), |window| {
6739 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6740 let mut snapshot = self
6741 .editor
6742 .update(cx, |editor, cx| editor.snapshot(window, cx));
6743 let style = self.style.clone();
6744
6745 let font_id = window.text_system().resolve_font(&style.text.font());
6746 let font_size = style.text.font_size.to_pixels(window.rem_size());
6747 let line_height = style.text.line_height_in_pixels(window.rem_size());
6748 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6749 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6750
6751 let letter_size = size(em_width, line_height);
6752
6753 let gutter_dimensions = snapshot
6754 .gutter_dimensions(
6755 font_id,
6756 font_size,
6757 self.max_line_number_width(&snapshot, window, cx),
6758 cx,
6759 )
6760 .unwrap_or_default();
6761 let text_width = bounds.size.width - gutter_dimensions.width;
6762
6763 let editor_width =
6764 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6765
6766 snapshot = self.editor.update(cx, |editor, cx| {
6767 editor.last_bounds = Some(bounds);
6768 editor.gutter_dimensions = gutter_dimensions;
6769 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6770
6771 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6772 snapshot
6773 } else {
6774 let wrap_width = match editor.soft_wrap_mode(cx) {
6775 SoftWrap::GitDiff => None,
6776 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6777 SoftWrap::EditorWidth => Some(editor_width),
6778 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6779 SoftWrap::Bounded(column) => {
6780 Some(editor_width.min(column as f32 * em_advance))
6781 }
6782 };
6783
6784 if editor.set_wrap_width(wrap_width, cx) {
6785 editor.snapshot(window, cx)
6786 } else {
6787 snapshot
6788 }
6789 }
6790 });
6791
6792 let wrap_guides = self
6793 .editor
6794 .read(cx)
6795 .wrap_guides(cx)
6796 .iter()
6797 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6798 .collect::<SmallVec<[_; 2]>>();
6799
6800 let hitbox = window.insert_hitbox(bounds, false);
6801 let gutter_hitbox =
6802 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6803 let text_hitbox = window.insert_hitbox(
6804 Bounds {
6805 origin: gutter_hitbox.top_right(),
6806 size: size(text_width, bounds.size.height),
6807 },
6808 false,
6809 );
6810 // Offset the content_bounds from the text_bounds by the gutter margin (which
6811 // is roughly half a character wide) to make hit testing work more like how we want.
6812 let content_origin =
6813 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6814
6815 let scrollbar_bounds =
6816 Bounds::from_corners(content_origin, bounds.bottom_right());
6817
6818 let height_in_lines = scrollbar_bounds.size.height / line_height;
6819
6820 // NOTE: The max row number in the current file, minus one
6821 let max_row = snapshot.max_point().row().as_f32();
6822
6823 // NOTE: The max scroll position for the top of the window
6824 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6825 (max_row - height_in_lines + 1.).max(0.)
6826 } else {
6827 let settings = EditorSettings::get_global(cx);
6828 match settings.scroll_beyond_last_line {
6829 ScrollBeyondLastLine::OnePage => max_row,
6830 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6831 ScrollBeyondLastLine::VerticalScrollMargin => {
6832 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6833 .max(0.)
6834 }
6835 }
6836 };
6837
6838 // TODO: Autoscrolling for both axes
6839 let mut autoscroll_request = None;
6840 let mut autoscroll_containing_element = false;
6841 let mut autoscroll_horizontally = false;
6842 self.editor.update(cx, |editor, cx| {
6843 autoscroll_request = editor.autoscroll_request();
6844 autoscroll_containing_element =
6845 autoscroll_request.is_some() || editor.has_pending_selection();
6846 // TODO: Is this horizontal or vertical?!
6847 autoscroll_horizontally = editor.autoscroll_vertically(
6848 bounds,
6849 line_height,
6850 max_scroll_top,
6851 window,
6852 cx,
6853 );
6854 snapshot = editor.snapshot(window, cx);
6855 });
6856
6857 let mut scroll_position = snapshot.scroll_position();
6858 // The scroll position is a fractional point, the whole number of which represents
6859 // the top of the window in terms of display rows.
6860 let start_row = DisplayRow(scroll_position.y as u32);
6861 let max_row = snapshot.max_point().row();
6862 let end_row = cmp::min(
6863 (scroll_position.y + height_in_lines).ceil() as u32,
6864 max_row.next_row().0,
6865 );
6866 let end_row = DisplayRow(end_row);
6867
6868 let row_infos = snapshot
6869 .row_infos(start_row)
6870 .take((start_row..end_row).len())
6871 .collect::<Vec<RowInfo>>();
6872 let is_row_soft_wrapped = |row: usize| {
6873 row_infos
6874 .get(row)
6875 .map_or(true, |info| info.buffer_row.is_none())
6876 };
6877
6878 let start_anchor = if start_row == Default::default() {
6879 Anchor::min()
6880 } else {
6881 snapshot.buffer_snapshot.anchor_before(
6882 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6883 )
6884 };
6885 let end_anchor = if end_row > max_row {
6886 Anchor::max()
6887 } else {
6888 snapshot.buffer_snapshot.anchor_before(
6889 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6890 )
6891 };
6892
6893 let (mut highlighted_rows, distinguish_unstaged_hunks) =
6894 self.editor.update(cx, |editor, cx| {
6895 (
6896 editor.highlighted_display_rows(window, cx),
6897 editor.distinguish_unstaged_diff_hunks,
6898 )
6899 });
6900
6901 for (ix, row_info) in row_infos.iter().enumerate() {
6902 let background = match row_info.diff_status {
6903 Some(DiffHunkStatus::Added(secondary_status)) => {
6904 let color = style.status.created_background;
6905 match secondary_status {
6906 DiffHunkSecondaryStatus::HasSecondaryHunk
6907 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6908 if distinguish_unstaged_hunks =>
6909 {
6910 pattern_slash(color, line_height.0 / 4.0)
6911 }
6912 _ => color.into(),
6913 }
6914 }
6915 Some(DiffHunkStatus::Removed(secondary_status)) => {
6916 let color = style.status.deleted_background;
6917 match secondary_status {
6918 DiffHunkSecondaryStatus::HasSecondaryHunk
6919 | DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk
6920 if distinguish_unstaged_hunks =>
6921 {
6922 pattern_slash(color, line_height.0 / 4.0)
6923 }
6924 _ => color.into(),
6925 }
6926 }
6927 _ => continue,
6928 };
6929
6930 highlighted_rows
6931 .entry(start_row + DisplayRow(ix as u32))
6932 .or_insert(background);
6933 }
6934
6935 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6936 start_anchor..end_anchor,
6937 &snapshot.display_snapshot,
6938 cx.theme().colors(),
6939 );
6940 let highlighted_gutter_ranges =
6941 self.editor.read(cx).gutter_highlights_in_range(
6942 start_anchor..end_anchor,
6943 &snapshot.display_snapshot,
6944 cx,
6945 );
6946
6947 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6948 start_anchor..end_anchor,
6949 &snapshot.display_snapshot,
6950 cx,
6951 );
6952
6953 let (local_selections, selected_buffer_ids): (
6954 Vec<Selection<Point>>,
6955 Vec<BufferId>,
6956 ) = self.editor.update(cx, |editor, cx| {
6957 let all_selections = editor.selections.all::<Point>(cx);
6958 let selected_buffer_ids = if editor.is_singleton(cx) {
6959 Vec::new()
6960 } else {
6961 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6962
6963 for selection in all_selections {
6964 for buffer_id in snapshot
6965 .buffer_snapshot
6966 .buffer_ids_for_range(selection.range())
6967 {
6968 if selected_buffer_ids.last() != Some(&buffer_id) {
6969 selected_buffer_ids.push(buffer_id);
6970 }
6971 }
6972 }
6973
6974 selected_buffer_ids
6975 };
6976
6977 let mut selections = editor
6978 .selections
6979 .disjoint_in_range(start_anchor..end_anchor, cx);
6980 selections.extend(editor.selections.pending(cx));
6981
6982 (selections, selected_buffer_ids)
6983 });
6984
6985 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6986 start_anchor,
6987 end_anchor,
6988 &local_selections,
6989 &snapshot,
6990 start_row,
6991 end_row,
6992 window,
6993 cx,
6994 );
6995
6996 let line_numbers = self.layout_line_numbers(
6997 Some(&gutter_hitbox),
6998 gutter_dimensions,
6999 line_height,
7000 scroll_position,
7001 start_row..end_row,
7002 &row_infos,
7003 newest_selection_head,
7004 &snapshot,
7005 window,
7006 cx,
7007 );
7008
7009 let mut crease_toggles =
7010 window.with_element_namespace("crease_toggles", |window| {
7011 self.layout_crease_toggles(
7012 start_row..end_row,
7013 &row_infos,
7014 &active_rows,
7015 &snapshot,
7016 window,
7017 cx,
7018 )
7019 });
7020 let crease_trailers =
7021 window.with_element_namespace("crease_trailers", |window| {
7022 self.layout_crease_trailers(
7023 row_infos.iter().copied(),
7024 &snapshot,
7025 window,
7026 cx,
7027 )
7028 });
7029
7030 let display_hunks = self.layout_gutter_diff_hunks(
7031 line_height,
7032 &gutter_hitbox,
7033 start_row..end_row,
7034 &snapshot,
7035 window,
7036 cx,
7037 );
7038
7039 let mut line_layouts = Self::layout_lines(
7040 start_row..end_row,
7041 &snapshot,
7042 &self.style,
7043 editor_width,
7044 is_row_soft_wrapped,
7045 window,
7046 cx,
7047 );
7048
7049 let longest_line_blame_width = self
7050 .editor
7051 .update(cx, |editor, cx| {
7052 if !editor.show_git_blame_inline {
7053 return None;
7054 }
7055 let blame = editor.blame.as_ref()?;
7056 let blame_entry = blame
7057 .update(cx, |blame, cx| {
7058 let row_infos =
7059 snapshot.row_infos(snapshot.longest_row()).next()?;
7060 blame.blame_for_rows(&[row_infos], cx).next()
7061 })
7062 .flatten()?;
7063 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7064 let mut element = render_inline_blame_entry(
7065 blame,
7066 blame_entry,
7067 &style,
7068 workspace,
7069 cx,
7070 );
7071 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7072 Some(
7073 element
7074 .layout_as_root(AvailableSpace::min_size(), window, cx)
7075 .width
7076 + inline_blame_padding,
7077 )
7078 })
7079 .unwrap_or(Pixels::ZERO);
7080
7081 let longest_line_width = layout_line(
7082 snapshot.longest_row(),
7083 &snapshot,
7084 &style,
7085 editor_width,
7086 is_row_soft_wrapped,
7087 window,
7088 cx,
7089 )
7090 .width;
7091
7092 let scrollbar_range_data = ScrollbarRangeData::new(
7093 scrollbar_bounds,
7094 letter_size,
7095 &snapshot,
7096 longest_line_width,
7097 longest_line_blame_width,
7098 &style,
7099 editor_width,
7100 cx,
7101 );
7102
7103 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7104 let mut scroll_width = scroll_range_bounds.size.width;
7105
7106 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7107 snapshot.sticky_header_excerpt(start_row)
7108 } else {
7109 None
7110 };
7111 let sticky_header_excerpt_id =
7112 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7113
7114 let blocks = window.with_element_namespace("blocks", |window| {
7115 self.render_blocks(
7116 start_row..end_row,
7117 &snapshot,
7118 &hitbox,
7119 &text_hitbox,
7120 editor_width,
7121 &mut scroll_width,
7122 &gutter_dimensions,
7123 em_width,
7124 gutter_dimensions.full_width(),
7125 line_height,
7126 &line_layouts,
7127 &local_selections,
7128 &selected_buffer_ids,
7129 is_row_soft_wrapped,
7130 sticky_header_excerpt_id,
7131 window,
7132 cx,
7133 )
7134 });
7135 let mut blocks = match blocks {
7136 Ok(blocks) => blocks,
7137 Err(resized_blocks) => {
7138 self.editor.update(cx, |editor, cx| {
7139 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7140 });
7141 return self.prepaint(None, bounds, &mut (), window, cx);
7142 }
7143 };
7144
7145 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7146 window.with_element_namespace("blocks", |window| {
7147 self.layout_sticky_buffer_header(
7148 sticky_header_excerpt,
7149 scroll_position.y,
7150 line_height,
7151 &snapshot,
7152 &hitbox,
7153 &selected_buffer_ids,
7154 window,
7155 cx,
7156 )
7157 })
7158 });
7159
7160 let start_buffer_row =
7161 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7162 let end_buffer_row =
7163 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7164
7165 let scroll_max = point(
7166 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7167 max_row.as_f32(),
7168 );
7169
7170 self.editor.update(cx, |editor, cx| {
7171 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7172
7173 let autoscrolled = if autoscroll_horizontally {
7174 editor.autoscroll_horizontally(
7175 start_row,
7176 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7177 scroll_width,
7178 em_width,
7179 &line_layouts,
7180 cx,
7181 )
7182 } else {
7183 false
7184 };
7185
7186 if clamped || autoscrolled {
7187 snapshot = editor.snapshot(window, cx);
7188 scroll_position = snapshot.scroll_position();
7189 }
7190 });
7191
7192 let scroll_pixel_position = point(
7193 scroll_position.x * em_width,
7194 scroll_position.y * line_height,
7195 );
7196
7197 let indent_guides = self.layout_indent_guides(
7198 content_origin,
7199 text_hitbox.origin,
7200 start_buffer_row..end_buffer_row,
7201 scroll_pixel_position,
7202 line_height,
7203 &snapshot,
7204 window,
7205 cx,
7206 );
7207
7208 let crease_trailers =
7209 window.with_element_namespace("crease_trailers", |window| {
7210 self.prepaint_crease_trailers(
7211 crease_trailers,
7212 &line_layouts,
7213 line_height,
7214 content_origin,
7215 scroll_pixel_position,
7216 em_width,
7217 window,
7218 cx,
7219 )
7220 });
7221
7222 let mut inline_blame = None;
7223 if let Some(newest_selection_head) = newest_selection_head {
7224 let display_row = newest_selection_head.row();
7225 if (start_row..end_row).contains(&display_row) {
7226 let line_ix = display_row.minus(start_row) as usize;
7227 let row_info = &row_infos[line_ix];
7228 let line_layout = &line_layouts[line_ix];
7229 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7230 inline_blame = self.layout_inline_blame(
7231 display_row,
7232 row_info,
7233 line_layout,
7234 crease_trailer_layout,
7235 em_width,
7236 content_origin,
7237 scroll_pixel_position,
7238 line_height,
7239 window,
7240 cx,
7241 );
7242 }
7243 }
7244
7245 let blamed_display_rows = self.layout_blame_entries(
7246 &row_infos,
7247 em_width,
7248 scroll_position,
7249 line_height,
7250 &gutter_hitbox,
7251 gutter_dimensions.git_blame_entries_width,
7252 window,
7253 cx,
7254 );
7255
7256 let scroll_max = point(
7257 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7258 max_scroll_top,
7259 );
7260
7261 self.editor.update(cx, |editor, cx| {
7262 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7263
7264 let autoscrolled = if autoscroll_horizontally {
7265 editor.autoscroll_horizontally(
7266 start_row,
7267 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7268 scroll_width,
7269 em_width,
7270 &line_layouts,
7271 cx,
7272 )
7273 } else {
7274 false
7275 };
7276
7277 if clamped || autoscrolled {
7278 snapshot = editor.snapshot(window, cx);
7279 scroll_position = snapshot.scroll_position();
7280 }
7281 });
7282
7283 let line_elements = self.prepaint_lines(
7284 start_row,
7285 &mut line_layouts,
7286 line_height,
7287 scroll_pixel_position,
7288 content_origin,
7289 window,
7290 cx,
7291 );
7292
7293 let mut block_start_rows = HashSet::default();
7294
7295 window.with_element_namespace("blocks", |window| {
7296 self.layout_blocks(
7297 &mut blocks,
7298 &mut block_start_rows,
7299 &hitbox,
7300 line_height,
7301 scroll_pixel_position,
7302 window,
7303 cx,
7304 );
7305 });
7306
7307 let cursors = self.collect_cursors(&snapshot, cx);
7308 let visible_row_range = start_row..end_row;
7309 let non_visible_cursors = cursors
7310 .iter()
7311 .any(|c| !visible_row_range.contains(&c.0.row()));
7312
7313 let visible_cursors = self.layout_visible_cursors(
7314 &snapshot,
7315 &selections,
7316 &block_start_rows,
7317 start_row..end_row,
7318 &line_layouts,
7319 &text_hitbox,
7320 content_origin,
7321 scroll_position,
7322 scroll_pixel_position,
7323 line_height,
7324 em_width,
7325 em_advance,
7326 autoscroll_containing_element,
7327 window,
7328 cx,
7329 );
7330
7331 let scrollbars_layout = self.layout_scrollbars(
7332 &snapshot,
7333 scrollbar_range_data,
7334 scroll_position,
7335 non_visible_cursors,
7336 window,
7337 cx,
7338 );
7339
7340 let gutter_settings = EditorSettings::get_global(cx).gutter;
7341
7342 let rows_with_hunk_bounds = display_hunks
7343 .iter()
7344 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7345 .fold(
7346 HashMap::default(),
7347 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7348 match hunk {
7349 DisplayDiffHunk::Folded { display_row } => {
7350 rows_with_hunk_bounds.insert(*display_row, bounds);
7351 }
7352 DisplayDiffHunk::Unfolded {
7353 display_row_range, ..
7354 } => {
7355 for display_row in display_row_range.iter_rows() {
7356 rows_with_hunk_bounds.insert(display_row, bounds);
7357 }
7358 }
7359 }
7360 rows_with_hunk_bounds
7361 },
7362 );
7363 let mut code_actions_indicator = None;
7364 if let Some(newest_selection_head) = newest_selection_head {
7365 let newest_selection_point =
7366 newest_selection_head.to_point(&snapshot.display_snapshot);
7367
7368 if (start_row..end_row).contains(&newest_selection_head.row()) {
7369 self.layout_cursor_popovers(
7370 line_height,
7371 &text_hitbox,
7372 content_origin,
7373 start_row,
7374 scroll_pixel_position,
7375 &line_layouts,
7376 newest_selection_head,
7377 newest_selection_point,
7378 &style,
7379 window,
7380 cx,
7381 );
7382
7383 let show_code_actions = snapshot
7384 .show_code_actions
7385 .unwrap_or(gutter_settings.code_actions);
7386 if show_code_actions {
7387 let newest_selection_point =
7388 newest_selection_head.to_point(&snapshot.display_snapshot);
7389 if !snapshot
7390 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7391 {
7392 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7393 MultiBufferRow(newest_selection_point.row),
7394 );
7395 if let Some((buffer, range)) = buffer {
7396 let buffer_id = buffer.remote_id();
7397 let row = range.start.row;
7398 let has_test_indicator = self
7399 .editor
7400 .read(cx)
7401 .tasks
7402 .contains_key(&(buffer_id, row));
7403
7404 if !has_test_indicator {
7405 code_actions_indicator = self
7406 .layout_code_actions_indicator(
7407 line_height,
7408 newest_selection_head,
7409 scroll_pixel_position,
7410 &gutter_dimensions,
7411 &gutter_hitbox,
7412 &rows_with_hunk_bounds,
7413 window,
7414 cx,
7415 );
7416 }
7417 }
7418 }
7419 }
7420 }
7421 }
7422
7423 self.layout_gutter_menu(
7424 line_height,
7425 &text_hitbox,
7426 content_origin,
7427 scroll_pixel_position,
7428 gutter_dimensions.width - gutter_dimensions.left_padding,
7429 window,
7430 cx,
7431 );
7432
7433 let test_indicators = if gutter_settings.runnables {
7434 self.layout_run_indicators(
7435 line_height,
7436 start_row..end_row,
7437 scroll_pixel_position,
7438 &gutter_dimensions,
7439 &gutter_hitbox,
7440 &rows_with_hunk_bounds,
7441 &snapshot,
7442 window,
7443 cx,
7444 )
7445 } else {
7446 Vec::new()
7447 };
7448
7449 self.layout_signature_help(
7450 &hitbox,
7451 content_origin,
7452 scroll_pixel_position,
7453 newest_selection_head,
7454 start_row,
7455 &line_layouts,
7456 line_height,
7457 em_width,
7458 window,
7459 cx,
7460 );
7461
7462 if !cx.has_active_drag() {
7463 self.layout_hover_popovers(
7464 &snapshot,
7465 &hitbox,
7466 &text_hitbox,
7467 start_row..end_row,
7468 content_origin,
7469 scroll_pixel_position,
7470 &line_layouts,
7471 line_height,
7472 em_width,
7473 window,
7474 cx,
7475 );
7476 }
7477
7478 let inline_completion_popover = self.layout_edit_prediction_popover(
7479 &text_hitbox.bounds,
7480 content_origin,
7481 &snapshot,
7482 start_row..end_row,
7483 scroll_position.y,
7484 scroll_position.y + height_in_lines,
7485 &line_layouts,
7486 line_height,
7487 scroll_pixel_position,
7488 newest_selection_head,
7489 editor_width,
7490 &style,
7491 window,
7492 cx,
7493 );
7494
7495 let mouse_context_menu = self.layout_mouse_context_menu(
7496 &snapshot,
7497 start_row..end_row,
7498 content_origin,
7499 window,
7500 cx,
7501 );
7502
7503 window.with_element_namespace("crease_toggles", |window| {
7504 self.prepaint_crease_toggles(
7505 &mut crease_toggles,
7506 line_height,
7507 &gutter_dimensions,
7508 gutter_settings,
7509 scroll_pixel_position,
7510 &gutter_hitbox,
7511 window,
7512 cx,
7513 )
7514 });
7515
7516 let invisible_symbol_font_size = font_size / 2.;
7517 let tab_invisible = window
7518 .text_system()
7519 .shape_line(
7520 "→".into(),
7521 invisible_symbol_font_size,
7522 &[TextRun {
7523 len: "→".len(),
7524 font: self.style.text.font(),
7525 color: cx.theme().colors().editor_invisible,
7526 background_color: None,
7527 underline: None,
7528 strikethrough: None,
7529 }],
7530 )
7531 .unwrap();
7532 let space_invisible = window
7533 .text_system()
7534 .shape_line(
7535 "•".into(),
7536 invisible_symbol_font_size,
7537 &[TextRun {
7538 len: "•".len(),
7539 font: self.style.text.font(),
7540 color: cx.theme().colors().editor_invisible,
7541 background_color: None,
7542 underline: None,
7543 strikethrough: None,
7544 }],
7545 )
7546 .unwrap();
7547
7548 let mode = snapshot.mode;
7549
7550 let position_map = Rc::new(PositionMap {
7551 size: bounds.size,
7552 visible_row_range,
7553 scroll_pixel_position,
7554 scroll_max,
7555 line_layouts,
7556 line_height,
7557 em_width,
7558 em_advance,
7559 snapshot,
7560 gutter_hitbox: gutter_hitbox.clone(),
7561 text_hitbox: text_hitbox.clone(),
7562 });
7563
7564 self.editor.update(cx, |editor, _| {
7565 editor.last_position_map = Some(position_map.clone())
7566 });
7567
7568 let hunk_controls = self.layout_diff_hunk_controls(
7569 start_row..end_row,
7570 &row_infos,
7571 &text_hitbox,
7572 &position_map,
7573 newest_selection_head,
7574 line_height,
7575 scroll_pixel_position,
7576 &display_hunks,
7577 self.editor.clone(),
7578 window,
7579 cx,
7580 );
7581
7582 EditorLayout {
7583 mode,
7584 position_map,
7585 visible_display_row_range: start_row..end_row,
7586 wrap_guides,
7587 indent_guides,
7588 hitbox,
7589 gutter_hitbox,
7590 display_hunks,
7591 content_origin,
7592 scrollbars_layout,
7593 active_rows,
7594 highlighted_rows,
7595 highlighted_ranges,
7596 highlighted_gutter_ranges,
7597 redacted_ranges,
7598 line_elements,
7599 line_numbers,
7600 blamed_display_rows,
7601 inline_blame,
7602 blocks,
7603 cursors,
7604 visible_cursors,
7605 selections,
7606 inline_completion_popover,
7607 diff_hunk_controls: hunk_controls,
7608 mouse_context_menu,
7609 test_indicators,
7610 code_actions_indicator,
7611 crease_toggles,
7612 crease_trailers,
7613 tab_invisible,
7614 space_invisible,
7615 sticky_buffer_header,
7616 }
7617 })
7618 })
7619 })
7620 }
7621
7622 fn paint(
7623 &mut self,
7624 _: Option<&GlobalElementId>,
7625 bounds: Bounds<gpui::Pixels>,
7626 _: &mut Self::RequestLayoutState,
7627 layout: &mut Self::PrepaintState,
7628 window: &mut Window,
7629 cx: &mut App,
7630 ) {
7631 let focus_handle = self.editor.focus_handle(cx);
7632 let key_context = self
7633 .editor
7634 .update(cx, |editor, cx| editor.key_context(window, cx));
7635
7636 window.set_key_context(key_context);
7637 window.handle_input(
7638 &focus_handle,
7639 ElementInputHandler::new(bounds, self.editor.clone()),
7640 cx,
7641 );
7642 self.register_actions(window, cx);
7643 self.register_key_listeners(window, cx, layout);
7644
7645 let text_style = TextStyleRefinement {
7646 font_size: Some(self.style.text.font_size),
7647 line_height: Some(self.style.text.line_height),
7648 ..Default::default()
7649 };
7650 let rem_size = self.rem_size(cx);
7651 window.with_rem_size(rem_size, |window| {
7652 window.with_text_style(Some(text_style), |window| {
7653 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7654 self.paint_mouse_listeners(layout, window, cx);
7655 self.paint_background(layout, window, cx);
7656 self.paint_indent_guides(layout, window, cx);
7657
7658 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7659 self.paint_blamed_display_rows(layout, window, cx);
7660 self.paint_line_numbers(layout, window, cx);
7661 }
7662
7663 self.paint_text(layout, window, cx);
7664
7665 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7666 self.paint_gutter_highlights(layout, window, cx);
7667 self.paint_gutter_indicators(layout, window, cx);
7668 }
7669
7670 if !layout.blocks.is_empty() {
7671 window.with_element_namespace("blocks", |window| {
7672 self.paint_blocks(layout, window, cx);
7673 });
7674 }
7675
7676 window.with_element_namespace("blocks", |window| {
7677 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7678 sticky_header.paint(window, cx)
7679 }
7680 });
7681
7682 self.paint_scrollbars(layout, window, cx);
7683 self.paint_inline_completion_popover(layout, window, cx);
7684 self.paint_mouse_context_menu(layout, window, cx);
7685 });
7686 })
7687 })
7688 }
7689}
7690
7691pub(super) fn gutter_bounds(
7692 editor_bounds: Bounds<Pixels>,
7693 gutter_dimensions: GutterDimensions,
7694) -> Bounds<Pixels> {
7695 Bounds {
7696 origin: editor_bounds.origin,
7697 size: size(gutter_dimensions.width, editor_bounds.size.height),
7698 }
7699}
7700
7701struct ScrollbarRangeData {
7702 scrollbar_bounds: Bounds<Pixels>,
7703 scroll_range: Bounds<Pixels>,
7704 letter_size: Size<Pixels>,
7705}
7706
7707impl ScrollbarRangeData {
7708 #[allow(clippy::too_many_arguments)]
7709 pub fn new(
7710 scrollbar_bounds: Bounds<Pixels>,
7711 letter_size: Size<Pixels>,
7712 snapshot: &EditorSnapshot,
7713 longest_line_width: Pixels,
7714 longest_line_blame_width: Pixels,
7715 style: &EditorStyle,
7716 editor_width: Pixels,
7717 cx: &mut App,
7718 ) -> ScrollbarRangeData {
7719 // TODO: Simplify this function down, it requires a lot of parameters
7720 let max_row = snapshot.max_point().row();
7721 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7722
7723 let settings = EditorSettings::get_global(cx);
7724 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7725 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7726 ScrollBeyondLastLine::Off => px(1.),
7727 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7728 };
7729
7730 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7731 letter_size.width + style.scrollbar_width
7732 } else {
7733 px(0.0)
7734 };
7735
7736 let overscroll = size(
7737 right_margin + longest_line_blame_width,
7738 letter_size.height * scroll_beyond_last_line,
7739 );
7740
7741 let scroll_range = Bounds {
7742 origin: scrollbar_bounds.origin,
7743 size: text_bounds_size + overscroll,
7744 };
7745
7746 ScrollbarRangeData {
7747 scrollbar_bounds,
7748 scroll_range,
7749 letter_size,
7750 }
7751 }
7752}
7753
7754impl IntoElement for EditorElement {
7755 type Element = Self;
7756
7757 fn into_element(self) -> Self::Element {
7758 self
7759 }
7760}
7761
7762pub struct EditorLayout {
7763 position_map: Rc<PositionMap>,
7764 hitbox: Hitbox,
7765 gutter_hitbox: Hitbox,
7766 content_origin: gpui::Point<Pixels>,
7767 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7768 mode: EditorMode,
7769 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7770 indent_guides: Option<Vec<IndentGuideLayout>>,
7771 visible_display_row_range: Range<DisplayRow>,
7772 active_rows: BTreeMap<DisplayRow, bool>,
7773 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7774 line_elements: SmallVec<[AnyElement; 1]>,
7775 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7776 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7777 blamed_display_rows: Option<Vec<AnyElement>>,
7778 inline_blame: Option<AnyElement>,
7779 blocks: Vec<BlockLayout>,
7780 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7781 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7782 redacted_ranges: Vec<Range<DisplayPoint>>,
7783 cursors: Vec<(DisplayPoint, Hsla)>,
7784 visible_cursors: Vec<CursorLayout>,
7785 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7786 code_actions_indicator: Option<AnyElement>,
7787 test_indicators: Vec<AnyElement>,
7788 crease_toggles: Vec<Option<AnyElement>>,
7789 diff_hunk_controls: Vec<AnyElement>,
7790 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7791 inline_completion_popover: Option<AnyElement>,
7792 mouse_context_menu: Option<AnyElement>,
7793 tab_invisible: ShapedLine,
7794 space_invisible: ShapedLine,
7795 sticky_buffer_header: Option<AnyElement>,
7796}
7797
7798impl EditorLayout {
7799 fn line_end_overshoot(&self) -> Pixels {
7800 0.15 * self.position_map.line_height
7801 }
7802}
7803
7804struct LineNumberLayout {
7805 shaped_line: ShapedLine,
7806 hitbox: Option<Hitbox>,
7807 display_row: DisplayRow,
7808}
7809
7810struct ColoredRange<T> {
7811 start: T,
7812 end: T,
7813 color: Hsla,
7814}
7815
7816#[derive(Clone)]
7817struct ScrollbarLayout {
7818 hitbox: Hitbox,
7819 visible_range: Range<f32>,
7820 visible: bool,
7821 text_unit_size: Pixels,
7822 thumb_size: Pixels,
7823 axis: Axis,
7824}
7825
7826impl ScrollbarLayout {
7827 const BORDER_WIDTH: Pixels = px(1.0);
7828 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7829 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7830 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7831
7832 fn thumb_bounds(&self) -> Bounds<Pixels> {
7833 match self.axis {
7834 Axis::Vertical => {
7835 let thumb_top = self.y_for_row(self.visible_range.start);
7836 let thumb_bottom = thumb_top + self.thumb_size;
7837 Bounds::from_corners(
7838 point(self.hitbox.left(), thumb_top),
7839 point(self.hitbox.right(), thumb_bottom),
7840 )
7841 }
7842 Axis::Horizontal => {
7843 let thumb_left =
7844 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7845 let thumb_right = thumb_left + self.thumb_size;
7846 Bounds::from_corners(
7847 point(thumb_left, self.hitbox.top()),
7848 point(thumb_right, self.hitbox.bottom()),
7849 )
7850 }
7851 }
7852 }
7853
7854 fn y_for_row(&self, row: f32) -> Pixels {
7855 self.hitbox.top() + row * self.text_unit_size
7856 }
7857
7858 fn marker_quads_for_ranges(
7859 &self,
7860 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7861 column: Option<usize>,
7862 ) -> Vec<PaintQuad> {
7863 struct MinMax {
7864 min: Pixels,
7865 max: Pixels,
7866 }
7867 let (x_range, height_limit) = if let Some(column) = column {
7868 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7869 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7870 let end = start + column_width;
7871 (
7872 Range { start, end },
7873 MinMax {
7874 min: Self::MIN_MARKER_HEIGHT,
7875 max: px(f32::MAX),
7876 },
7877 )
7878 } else {
7879 (
7880 Range {
7881 start: Self::BORDER_WIDTH,
7882 end: self.hitbox.size.width,
7883 },
7884 MinMax {
7885 min: Self::LINE_MARKER_HEIGHT,
7886 max: Self::LINE_MARKER_HEIGHT,
7887 },
7888 )
7889 };
7890
7891 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7892 let mut pixel_ranges = row_ranges
7893 .into_iter()
7894 .map(|range| {
7895 let start_y = row_to_y(range.start);
7896 let end_y = row_to_y(range.end)
7897 + self
7898 .text_unit_size
7899 .max(height_limit.min)
7900 .min(height_limit.max);
7901 ColoredRange {
7902 start: start_y,
7903 end: end_y,
7904 color: range.color,
7905 }
7906 })
7907 .peekable();
7908
7909 let mut quads = Vec::new();
7910 while let Some(mut pixel_range) = pixel_ranges.next() {
7911 while let Some(next_pixel_range) = pixel_ranges.peek() {
7912 if pixel_range.end >= next_pixel_range.start - px(1.0)
7913 && pixel_range.color == next_pixel_range.color
7914 {
7915 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7916 pixel_ranges.next();
7917 } else {
7918 break;
7919 }
7920 }
7921
7922 let bounds = Bounds::from_corners(
7923 point(x_range.start, pixel_range.start),
7924 point(x_range.end, pixel_range.end),
7925 );
7926 quads.push(quad(
7927 bounds,
7928 Corners::default(),
7929 pixel_range.color,
7930 Edges::default(),
7931 Hsla::transparent_black(),
7932 ));
7933 }
7934
7935 quads
7936 }
7937}
7938
7939struct CreaseTrailerLayout {
7940 element: AnyElement,
7941 bounds: Bounds<Pixels>,
7942}
7943
7944pub(crate) struct PositionMap {
7945 pub size: Size<Pixels>,
7946 pub line_height: Pixels,
7947 pub scroll_pixel_position: gpui::Point<Pixels>,
7948 pub scroll_max: gpui::Point<f32>,
7949 pub em_width: Pixels,
7950 pub em_advance: Pixels,
7951 pub visible_row_range: Range<DisplayRow>,
7952 pub line_layouts: Vec<LineWithInvisibles>,
7953 pub snapshot: EditorSnapshot,
7954 pub text_hitbox: Hitbox,
7955 pub gutter_hitbox: Hitbox,
7956}
7957
7958#[derive(Debug, Copy, Clone)]
7959pub struct PointForPosition {
7960 pub previous_valid: DisplayPoint,
7961 pub next_valid: DisplayPoint,
7962 pub exact_unclipped: DisplayPoint,
7963 pub column_overshoot_after_line_end: u32,
7964}
7965
7966impl PointForPosition {
7967 pub fn as_valid(&self) -> Option<DisplayPoint> {
7968 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7969 Some(self.previous_valid)
7970 } else {
7971 None
7972 }
7973 }
7974}
7975
7976impl PositionMap {
7977 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7978 let text_bounds = self.text_hitbox.bounds;
7979 let scroll_position = self.snapshot.scroll_position();
7980 let position = position - text_bounds.origin;
7981 let y = position.y.max(px(0.)).min(self.size.height);
7982 let x = position.x + (scroll_position.x * self.em_width);
7983 let row = ((y / self.line_height) + scroll_position.y) as u32;
7984
7985 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7986 .line_layouts
7987 .get(row as usize - scroll_position.y as usize)
7988 {
7989 if let Some(ix) = line.index_for_x(x) {
7990 (ix as u32, px(0.))
7991 } else {
7992 (line.len as u32, px(0.).max(x - line.width))
7993 }
7994 } else {
7995 (0, x)
7996 };
7997
7998 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7999 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8000 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8001
8002 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8003 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8004 PointForPosition {
8005 previous_valid,
8006 next_valid,
8007 exact_unclipped,
8008 column_overshoot_after_line_end,
8009 }
8010 }
8011}
8012
8013struct BlockLayout {
8014 id: BlockId,
8015 row: Option<DisplayRow>,
8016 element: AnyElement,
8017 available_space: Size<AvailableSpace>,
8018 style: BlockStyle,
8019}
8020
8021fn layout_line(
8022 row: DisplayRow,
8023 snapshot: &EditorSnapshot,
8024 style: &EditorStyle,
8025 text_width: Pixels,
8026 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8027 window: &mut Window,
8028 cx: &mut App,
8029) -> LineWithInvisibles {
8030 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8031 LineWithInvisibles::from_chunks(
8032 chunks,
8033 &style,
8034 MAX_LINE_LEN,
8035 1,
8036 snapshot.mode,
8037 text_width,
8038 is_row_soft_wrapped,
8039 window,
8040 cx,
8041 )
8042 .pop()
8043 .unwrap()
8044}
8045
8046#[derive(Debug)]
8047pub struct IndentGuideLayout {
8048 origin: gpui::Point<Pixels>,
8049 length: Pixels,
8050 single_indent_width: Pixels,
8051 depth: u32,
8052 active: bool,
8053 settings: IndentGuideSettings,
8054}
8055
8056pub struct CursorLayout {
8057 origin: gpui::Point<Pixels>,
8058 block_width: Pixels,
8059 line_height: Pixels,
8060 color: Hsla,
8061 shape: CursorShape,
8062 block_text: Option<ShapedLine>,
8063 cursor_name: Option<AnyElement>,
8064}
8065
8066#[derive(Debug)]
8067pub struct CursorName {
8068 string: SharedString,
8069 color: Hsla,
8070 is_top_row: bool,
8071}
8072
8073impl CursorLayout {
8074 pub fn new(
8075 origin: gpui::Point<Pixels>,
8076 block_width: Pixels,
8077 line_height: Pixels,
8078 color: Hsla,
8079 shape: CursorShape,
8080 block_text: Option<ShapedLine>,
8081 ) -> CursorLayout {
8082 CursorLayout {
8083 origin,
8084 block_width,
8085 line_height,
8086 color,
8087 shape,
8088 block_text,
8089 cursor_name: None,
8090 }
8091 }
8092
8093 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8094 Bounds {
8095 origin: self.origin + origin,
8096 size: size(self.block_width, self.line_height),
8097 }
8098 }
8099
8100 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8101 match self.shape {
8102 CursorShape::Bar => Bounds {
8103 origin: self.origin + origin,
8104 size: size(px(2.0), self.line_height),
8105 },
8106 CursorShape::Block | CursorShape::Hollow => Bounds {
8107 origin: self.origin + origin,
8108 size: size(self.block_width, self.line_height),
8109 },
8110 CursorShape::Underline => Bounds {
8111 origin: self.origin
8112 + origin
8113 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8114 size: size(self.block_width, px(2.0)),
8115 },
8116 }
8117 }
8118
8119 pub fn layout(
8120 &mut self,
8121 origin: gpui::Point<Pixels>,
8122 cursor_name: Option<CursorName>,
8123 window: &mut Window,
8124 cx: &mut App,
8125 ) {
8126 if let Some(cursor_name) = cursor_name {
8127 let bounds = self.bounds(origin);
8128 let text_size = self.line_height / 1.5;
8129
8130 let name_origin = if cursor_name.is_top_row {
8131 point(bounds.right() - px(1.), bounds.top())
8132 } else {
8133 match self.shape {
8134 CursorShape::Bar => point(
8135 bounds.right() - px(2.),
8136 bounds.top() - text_size / 2. - px(1.),
8137 ),
8138 _ => point(
8139 bounds.right() - px(1.),
8140 bounds.top() - text_size / 2. - px(1.),
8141 ),
8142 }
8143 };
8144 let mut name_element = div()
8145 .bg(self.color)
8146 .text_size(text_size)
8147 .px_0p5()
8148 .line_height(text_size + px(2.))
8149 .text_color(cursor_name.color)
8150 .child(cursor_name.string.clone())
8151 .into_any_element();
8152
8153 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8154
8155 self.cursor_name = Some(name_element);
8156 }
8157 }
8158
8159 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8160 let bounds = self.bounds(origin);
8161
8162 //Draw background or border quad
8163 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8164 outline(bounds, self.color)
8165 } else {
8166 fill(bounds, self.color)
8167 };
8168
8169 if let Some(name) = &mut self.cursor_name {
8170 name.paint(window, cx);
8171 }
8172
8173 window.paint_quad(cursor);
8174
8175 if let Some(block_text) = &self.block_text {
8176 block_text
8177 .paint(self.origin + origin, self.line_height, window, cx)
8178 .log_err();
8179 }
8180 }
8181
8182 pub fn shape(&self) -> CursorShape {
8183 self.shape
8184 }
8185}
8186
8187#[derive(Debug)]
8188pub struct HighlightedRange {
8189 pub start_y: Pixels,
8190 pub line_height: Pixels,
8191 pub lines: Vec<HighlightedRangeLine>,
8192 pub color: Hsla,
8193 pub corner_radius: Pixels,
8194}
8195
8196#[derive(Debug)]
8197pub struct HighlightedRangeLine {
8198 pub start_x: Pixels,
8199 pub end_x: Pixels,
8200}
8201
8202impl HighlightedRange {
8203 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8204 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8205 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8206 self.paint_lines(
8207 self.start_y + self.line_height,
8208 &self.lines[1..],
8209 bounds,
8210 window,
8211 );
8212 } else {
8213 self.paint_lines(self.start_y, &self.lines, bounds, window);
8214 }
8215 }
8216
8217 fn paint_lines(
8218 &self,
8219 start_y: Pixels,
8220 lines: &[HighlightedRangeLine],
8221 _bounds: Bounds<Pixels>,
8222 window: &mut Window,
8223 ) {
8224 if lines.is_empty() {
8225 return;
8226 }
8227
8228 let first_line = lines.first().unwrap();
8229 let last_line = lines.last().unwrap();
8230
8231 let first_top_left = point(first_line.start_x, start_y);
8232 let first_top_right = point(first_line.end_x, start_y);
8233
8234 let curve_height = point(Pixels::ZERO, self.corner_radius);
8235 let curve_width = |start_x: Pixels, end_x: Pixels| {
8236 let max = (end_x - start_x) / 2.;
8237 let width = if max < self.corner_radius {
8238 max
8239 } else {
8240 self.corner_radius
8241 };
8242
8243 point(width, Pixels::ZERO)
8244 };
8245
8246 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8247 let mut builder = gpui::PathBuilder::fill();
8248 builder.move_to(first_top_right - top_curve_width);
8249 builder.curve_to(first_top_right + curve_height, first_top_right);
8250
8251 let mut iter = lines.iter().enumerate().peekable();
8252 while let Some((ix, line)) = iter.next() {
8253 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8254
8255 if let Some((_, next_line)) = iter.peek() {
8256 let next_top_right = point(next_line.end_x, bottom_right.y);
8257
8258 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8259 Ordering::Equal => {
8260 builder.line_to(bottom_right);
8261 }
8262 Ordering::Less => {
8263 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8264 builder.line_to(bottom_right - curve_height);
8265 if self.corner_radius > Pixels::ZERO {
8266 builder.curve_to(bottom_right - curve_width, bottom_right);
8267 }
8268 builder.line_to(next_top_right + curve_width);
8269 if self.corner_radius > Pixels::ZERO {
8270 builder.curve_to(next_top_right + curve_height, next_top_right);
8271 }
8272 }
8273 Ordering::Greater => {
8274 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8275 builder.line_to(bottom_right - curve_height);
8276 if self.corner_radius > Pixels::ZERO {
8277 builder.curve_to(bottom_right + curve_width, bottom_right);
8278 }
8279 builder.line_to(next_top_right - curve_width);
8280 if self.corner_radius > Pixels::ZERO {
8281 builder.curve_to(next_top_right + curve_height, next_top_right);
8282 }
8283 }
8284 }
8285 } else {
8286 let curve_width = curve_width(line.start_x, line.end_x);
8287 builder.line_to(bottom_right - curve_height);
8288 if self.corner_radius > Pixels::ZERO {
8289 builder.curve_to(bottom_right - curve_width, bottom_right);
8290 }
8291
8292 let bottom_left = point(line.start_x, bottom_right.y);
8293 builder.line_to(bottom_left + curve_width);
8294 if self.corner_radius > Pixels::ZERO {
8295 builder.curve_to(bottom_left - curve_height, bottom_left);
8296 }
8297 }
8298 }
8299
8300 if first_line.start_x > last_line.start_x {
8301 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8302 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8303 builder.line_to(second_top_left + curve_height);
8304 if self.corner_radius > Pixels::ZERO {
8305 builder.curve_to(second_top_left + curve_width, second_top_left);
8306 }
8307 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8308 builder.line_to(first_bottom_left - curve_width);
8309 if self.corner_radius > Pixels::ZERO {
8310 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8311 }
8312 }
8313
8314 builder.line_to(first_top_left + curve_height);
8315 if self.corner_radius > Pixels::ZERO {
8316 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8317 }
8318 builder.line_to(first_top_right - top_curve_width);
8319
8320 if let Ok(path) = builder.build() {
8321 window.paint_path(path, self.color);
8322 }
8323 }
8324}
8325
8326enum CursorPopoverType {
8327 CodeContextMenu,
8328 EditPrediction,
8329}
8330
8331pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8332 (delta.pow(1.5) / 100.0).into()
8333}
8334
8335fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8336 (delta.pow(1.2) / 300.0).into()
8337}
8338
8339pub fn register_action<T: Action>(
8340 editor: &Entity<Editor>,
8341 window: &mut Window,
8342 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8343) {
8344 let editor = editor.clone();
8345 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8346 let action = action.downcast_ref().unwrap();
8347 if phase == DispatchPhase::Bubble {
8348 editor.update(cx, |editor, cx| {
8349 listener(editor, action, window, cx);
8350 })
8351 }
8352 })
8353}
8354
8355fn compute_auto_height_layout(
8356 editor: &mut Editor,
8357 max_lines: usize,
8358 max_line_number_width: Pixels,
8359 known_dimensions: Size<Option<Pixels>>,
8360 available_width: AvailableSpace,
8361 window: &mut Window,
8362 cx: &mut Context<Editor>,
8363) -> Option<Size<Pixels>> {
8364 let width = known_dimensions.width.or({
8365 if let AvailableSpace::Definite(available_width) = available_width {
8366 Some(available_width)
8367 } else {
8368 None
8369 }
8370 })?;
8371 if let Some(height) = known_dimensions.height {
8372 return Some(size(width, height));
8373 }
8374
8375 let style = editor.style.as_ref().unwrap();
8376 let font_id = window.text_system().resolve_font(&style.text.font());
8377 let font_size = style.text.font_size.to_pixels(window.rem_size());
8378 let line_height = style.text.line_height_in_pixels(window.rem_size());
8379 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8380
8381 let mut snapshot = editor.snapshot(window, cx);
8382 let gutter_dimensions = snapshot
8383 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8384 .unwrap_or_default();
8385
8386 editor.gutter_dimensions = gutter_dimensions;
8387 let text_width = width - gutter_dimensions.width;
8388 let overscroll = size(em_width, px(0.));
8389
8390 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8391 if editor.set_wrap_width(Some(editor_width), cx) {
8392 snapshot = editor.snapshot(window, cx);
8393 }
8394
8395 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8396 let height = scroll_height
8397 .max(line_height)
8398 .min(line_height * max_lines as f32);
8399
8400 Some(size(width, height))
8401}
8402
8403#[cfg(test)]
8404mod tests {
8405 use super::*;
8406 use crate::{
8407 display_map::{BlockPlacement, BlockProperties},
8408 editor_tests::{init_test, update_test_language_settings},
8409 Editor, MultiBuffer,
8410 };
8411 use gpui::{TestAppContext, VisualTestContext};
8412 use language::language_settings;
8413 use log::info;
8414 use similar::DiffableStr;
8415 use std::num::NonZeroU32;
8416 use util::test::sample_text;
8417
8418 #[gpui::test]
8419 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8420 init_test(cx, |_| {});
8421 let window = cx.add_window(|window, cx| {
8422 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8423 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8424 });
8425
8426 let editor = window.root(cx).unwrap();
8427 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8428 let line_height = window
8429 .update(cx, |_, window, _| {
8430 style.text.line_height_in_pixels(window.rem_size())
8431 })
8432 .unwrap();
8433 let element = EditorElement::new(&editor, style);
8434 let snapshot = window
8435 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8436 .unwrap();
8437
8438 let layouts = cx
8439 .update_window(*window, |_, window, cx| {
8440 element.layout_line_numbers(
8441 None,
8442 GutterDimensions {
8443 left_padding: Pixels::ZERO,
8444 right_padding: Pixels::ZERO,
8445 width: px(30.0),
8446 margin: Pixels::ZERO,
8447 git_blame_entries_width: None,
8448 },
8449 line_height,
8450 gpui::Point::default(),
8451 DisplayRow(0)..DisplayRow(6),
8452 &(0..6)
8453 .map(|row| RowInfo {
8454 buffer_row: Some(row),
8455 ..Default::default()
8456 })
8457 .collect::<Vec<_>>(),
8458 Some(DisplayPoint::new(DisplayRow(0), 0)),
8459 &snapshot,
8460 window,
8461 cx,
8462 )
8463 })
8464 .unwrap();
8465 assert_eq!(layouts.len(), 6);
8466
8467 let relative_rows = window
8468 .update(cx, |editor, window, cx| {
8469 let snapshot = editor.snapshot(window, cx);
8470 element.calculate_relative_line_numbers(
8471 &snapshot,
8472 &(DisplayRow(0)..DisplayRow(6)),
8473 Some(DisplayRow(3)),
8474 )
8475 })
8476 .unwrap();
8477 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8478 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8479 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8480 // current line has no relative number
8481 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8482 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8483
8484 // works if cursor is before screen
8485 let relative_rows = window
8486 .update(cx, |editor, window, cx| {
8487 let snapshot = editor.snapshot(window, cx);
8488 element.calculate_relative_line_numbers(
8489 &snapshot,
8490 &(DisplayRow(3)..DisplayRow(6)),
8491 Some(DisplayRow(1)),
8492 )
8493 })
8494 .unwrap();
8495 assert_eq!(relative_rows.len(), 3);
8496 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8497 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8498 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8499
8500 // works if cursor is after screen
8501 let relative_rows = window
8502 .update(cx, |editor, window, cx| {
8503 let snapshot = editor.snapshot(window, cx);
8504 element.calculate_relative_line_numbers(
8505 &snapshot,
8506 &(DisplayRow(0)..DisplayRow(3)),
8507 Some(DisplayRow(6)),
8508 )
8509 })
8510 .unwrap();
8511 assert_eq!(relative_rows.len(), 3);
8512 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8513 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8514 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8515 }
8516
8517 #[gpui::test]
8518 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8519 init_test(cx, |_| {});
8520
8521 let window = cx.add_window(|window, cx| {
8522 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8523 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8524 });
8525 let cx = &mut VisualTestContext::from_window(*window, cx);
8526 let editor = window.root(cx).unwrap();
8527 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8528
8529 window
8530 .update(cx, |editor, window, cx| {
8531 editor.cursor_shape = CursorShape::Block;
8532 editor.change_selections(None, window, cx, |s| {
8533 s.select_ranges([
8534 Point::new(0, 0)..Point::new(1, 0),
8535 Point::new(3, 2)..Point::new(3, 3),
8536 Point::new(5, 6)..Point::new(6, 0),
8537 ]);
8538 });
8539 })
8540 .unwrap();
8541
8542 let (_, state) = cx.draw(
8543 point(px(500.), px(500.)),
8544 size(px(500.), px(500.)),
8545 |_, _| EditorElement::new(&editor, style),
8546 );
8547
8548 assert_eq!(state.selections.len(), 1);
8549 let local_selections = &state.selections[0].1;
8550 assert_eq!(local_selections.len(), 3);
8551 // moves cursor back one line
8552 assert_eq!(
8553 local_selections[0].head,
8554 DisplayPoint::new(DisplayRow(0), 6)
8555 );
8556 assert_eq!(
8557 local_selections[0].range,
8558 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8559 );
8560
8561 // moves cursor back one column
8562 assert_eq!(
8563 local_selections[1].range,
8564 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8565 );
8566 assert_eq!(
8567 local_selections[1].head,
8568 DisplayPoint::new(DisplayRow(3), 2)
8569 );
8570
8571 // leaves cursor on the max point
8572 assert_eq!(
8573 local_selections[2].range,
8574 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8575 );
8576 assert_eq!(
8577 local_selections[2].head,
8578 DisplayPoint::new(DisplayRow(6), 0)
8579 );
8580
8581 // active lines does not include 1 (even though the range of the selection does)
8582 assert_eq!(
8583 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8584 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8585 );
8586
8587 // multi-buffer support
8588 // in DisplayPoint coordinates, this is what we're dealing with:
8589 // 0: [[file
8590 // 1: header
8591 // 2: section]]
8592 // 3: aaaaaa
8593 // 4: bbbbbb
8594 // 5: cccccc
8595 // 6:
8596 // 7: [[footer]]
8597 // 8: [[header]]
8598 // 9: ffffff
8599 // 10: gggggg
8600 // 11: hhhhhh
8601 // 12:
8602 // 13: [[footer]]
8603 // 14: [[file
8604 // 15: header
8605 // 16: section]]
8606 // 17: bbbbbb
8607 // 18: cccccc
8608 // 19: dddddd
8609 // 20: [[footer]]
8610 let window = cx.add_window(|window, cx| {
8611 let buffer = MultiBuffer::build_multi(
8612 [
8613 (
8614 &(sample_text(8, 6, 'a') + "\n"),
8615 vec![
8616 Point::new(0, 0)..Point::new(3, 0),
8617 Point::new(4, 0)..Point::new(7, 0),
8618 ],
8619 ),
8620 (
8621 &(sample_text(8, 6, 'a') + "\n"),
8622 vec![Point::new(1, 0)..Point::new(3, 0)],
8623 ),
8624 ],
8625 cx,
8626 );
8627 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8628 });
8629 let editor = window.root(cx).unwrap();
8630 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8631 let _state = window.update(cx, |editor, window, cx| {
8632 editor.cursor_shape = CursorShape::Block;
8633 editor.change_selections(None, window, cx, |s| {
8634 s.select_display_ranges([
8635 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8636 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8637 ]);
8638 });
8639 });
8640
8641 let (_, state) = cx.draw(
8642 point(px(500.), px(500.)),
8643 size(px(500.), px(500.)),
8644 |_, _| EditorElement::new(&editor, style),
8645 );
8646 assert_eq!(state.selections.len(), 1);
8647 let local_selections = &state.selections[0].1;
8648 assert_eq!(local_selections.len(), 2);
8649
8650 // moves cursor on excerpt boundary back a line
8651 // and doesn't allow selection to bleed through
8652 assert_eq!(
8653 local_selections[0].range,
8654 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8655 );
8656 assert_eq!(
8657 local_selections[0].head,
8658 DisplayPoint::new(DisplayRow(6), 0)
8659 );
8660 // moves cursor on buffer boundary back two lines
8661 // and doesn't allow selection to bleed through
8662 assert_eq!(
8663 local_selections[1].range,
8664 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8665 );
8666 assert_eq!(
8667 local_selections[1].head,
8668 DisplayPoint::new(DisplayRow(12), 0)
8669 );
8670 }
8671
8672 #[gpui::test]
8673 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8674 init_test(cx, |_| {});
8675
8676 let window = cx.add_window(|window, cx| {
8677 let buffer = MultiBuffer::build_simple("", cx);
8678 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8679 });
8680 let cx = &mut VisualTestContext::from_window(*window, cx);
8681 let editor = window.root(cx).unwrap();
8682 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8683 window
8684 .update(cx, |editor, window, cx| {
8685 editor.set_placeholder_text("hello", cx);
8686 editor.insert_blocks(
8687 [BlockProperties {
8688 style: BlockStyle::Fixed,
8689 placement: BlockPlacement::Above(Anchor::min()),
8690 height: 3,
8691 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8692 priority: 0,
8693 }],
8694 None,
8695 cx,
8696 );
8697
8698 // Blur the editor so that it displays placeholder text.
8699 window.blur();
8700 })
8701 .unwrap();
8702
8703 let (_, state) = cx.draw(
8704 point(px(500.), px(500.)),
8705 size(px(500.), px(500.)),
8706 |_, _| EditorElement::new(&editor, style),
8707 );
8708 assert_eq!(state.position_map.line_layouts.len(), 4);
8709 assert_eq!(state.line_numbers.len(), 1);
8710 assert_eq!(
8711 state
8712 .line_numbers
8713 .get(&MultiBufferRow(0))
8714 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8715 Some("1")
8716 );
8717 }
8718
8719 #[gpui::test]
8720 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8721 const TAB_SIZE: u32 = 4;
8722
8723 let input_text = "\t \t|\t| a b";
8724 let expected_invisibles = vec![
8725 Invisible::Tab {
8726 line_start_offset: 0,
8727 line_end_offset: TAB_SIZE as usize,
8728 },
8729 Invisible::Whitespace {
8730 line_offset: TAB_SIZE as usize,
8731 },
8732 Invisible::Tab {
8733 line_start_offset: TAB_SIZE as usize + 1,
8734 line_end_offset: TAB_SIZE as usize * 2,
8735 },
8736 Invisible::Tab {
8737 line_start_offset: TAB_SIZE as usize * 2 + 1,
8738 line_end_offset: TAB_SIZE as usize * 3,
8739 },
8740 Invisible::Whitespace {
8741 line_offset: TAB_SIZE as usize * 3 + 1,
8742 },
8743 Invisible::Whitespace {
8744 line_offset: TAB_SIZE as usize * 3 + 3,
8745 },
8746 ];
8747 assert_eq!(
8748 expected_invisibles.len(),
8749 input_text
8750 .chars()
8751 .filter(|initial_char| initial_char.is_whitespace())
8752 .count(),
8753 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8754 );
8755
8756 for show_line_numbers in [true, false] {
8757 init_test(cx, |s| {
8758 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8759 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8760 });
8761
8762 let actual_invisibles = collect_invisibles_from_new_editor(
8763 cx,
8764 EditorMode::Full,
8765 input_text,
8766 px(500.0),
8767 show_line_numbers,
8768 );
8769
8770 assert_eq!(expected_invisibles, actual_invisibles);
8771 }
8772 }
8773
8774 #[gpui::test]
8775 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8776 init_test(cx, |s| {
8777 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8778 s.defaults.tab_size = NonZeroU32::new(4);
8779 });
8780
8781 for editor_mode_without_invisibles in [
8782 EditorMode::SingleLine { auto_width: false },
8783 EditorMode::AutoHeight { max_lines: 100 },
8784 ] {
8785 for show_line_numbers in [true, false] {
8786 let invisibles = collect_invisibles_from_new_editor(
8787 cx,
8788 editor_mode_without_invisibles,
8789 "\t\t\t| | a b",
8790 px(500.0),
8791 show_line_numbers,
8792 );
8793 assert!(invisibles.is_empty(),
8794 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8795 }
8796 }
8797 }
8798
8799 #[gpui::test]
8800 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8801 let tab_size = 4;
8802 let input_text = "a\tbcd ".repeat(9);
8803 let repeated_invisibles = [
8804 Invisible::Tab {
8805 line_start_offset: 1,
8806 line_end_offset: tab_size as usize,
8807 },
8808 Invisible::Whitespace {
8809 line_offset: tab_size as usize + 3,
8810 },
8811 Invisible::Whitespace {
8812 line_offset: tab_size as usize + 4,
8813 },
8814 Invisible::Whitespace {
8815 line_offset: tab_size as usize + 5,
8816 },
8817 Invisible::Whitespace {
8818 line_offset: tab_size as usize + 6,
8819 },
8820 Invisible::Whitespace {
8821 line_offset: tab_size as usize + 7,
8822 },
8823 ];
8824 let expected_invisibles = std::iter::once(repeated_invisibles)
8825 .cycle()
8826 .take(9)
8827 .flatten()
8828 .collect::<Vec<_>>();
8829 assert_eq!(
8830 expected_invisibles.len(),
8831 input_text
8832 .chars()
8833 .filter(|initial_char| initial_char.is_whitespace())
8834 .count(),
8835 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8836 );
8837 info!("Expected invisibles: {expected_invisibles:?}");
8838
8839 init_test(cx, |_| {});
8840
8841 // Put the same string with repeating whitespace pattern into editors of various size,
8842 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8843 let resize_step = 10.0;
8844 let mut editor_width = 200.0;
8845 while editor_width <= 1000.0 {
8846 for show_line_numbers in [true, false] {
8847 update_test_language_settings(cx, |s| {
8848 s.defaults.tab_size = NonZeroU32::new(tab_size);
8849 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8850 s.defaults.preferred_line_length = Some(editor_width as u32);
8851 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8852 });
8853
8854 let actual_invisibles = collect_invisibles_from_new_editor(
8855 cx,
8856 EditorMode::Full,
8857 &input_text,
8858 px(editor_width),
8859 show_line_numbers,
8860 );
8861
8862 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8863 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8864 let mut i = 0;
8865 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8866 i = actual_index;
8867 match expected_invisibles.get(i) {
8868 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8869 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8870 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8871 _ => {
8872 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8873 }
8874 },
8875 None => {
8876 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8877 }
8878 }
8879 }
8880 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8881 assert!(
8882 missing_expected_invisibles.is_empty(),
8883 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8884 );
8885
8886 editor_width += resize_step;
8887 }
8888 }
8889 }
8890
8891 fn collect_invisibles_from_new_editor(
8892 cx: &mut TestAppContext,
8893 editor_mode: EditorMode,
8894 input_text: &str,
8895 editor_width: Pixels,
8896 show_line_numbers: bool,
8897 ) -> Vec<Invisible> {
8898 info!(
8899 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8900 editor_width.0
8901 );
8902 let window = cx.add_window(|window, cx| {
8903 let buffer = MultiBuffer::build_simple(input_text, cx);
8904 Editor::new(editor_mode, buffer, None, true, window, cx)
8905 });
8906 let cx = &mut VisualTestContext::from_window(*window, cx);
8907 let editor = window.root(cx).unwrap();
8908
8909 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8910 window
8911 .update(cx, |editor, _, cx| {
8912 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8913 editor.set_wrap_width(Some(editor_width), cx);
8914 editor.set_show_line_numbers(show_line_numbers, cx);
8915 })
8916 .unwrap();
8917 let (_, state) = cx.draw(
8918 point(px(500.), px(500.)),
8919 size(px(500.), px(500.)),
8920 |_, _| EditorElement::new(&editor, style),
8921 );
8922 state
8923 .position_map
8924 .line_layouts
8925 .iter()
8926 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8927 .cloned()
8928 .collect()
8929 }
8930}
8931
8932fn diff_hunk_controls(
8933 row: u32,
8934 hunk_range: Range<Anchor>,
8935 line_height: Pixels,
8936 editor: &Entity<Editor>,
8937 cx: &mut App,
8938) -> AnyElement {
8939 h_flex()
8940 .h(line_height)
8941 .mr_1()
8942 .gap_1()
8943 .px_1()
8944 .pb_1()
8945 .border_b_1()
8946 .border_color(cx.theme().colors().border_variant)
8947 .rounded_b_lg()
8948 .bg(cx.theme().colors().editor_background)
8949 .gap_1()
8950 .child(
8951 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8952 .shape(IconButtonShape::Square)
8953 .icon_size(IconSize::Small)
8954 // .disabled(!has_multiple_hunks)
8955 .tooltip({
8956 let focus_handle = editor.focus_handle(cx);
8957 move |window, cx| {
8958 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8959 }
8960 })
8961 .on_click({
8962 let editor = editor.clone();
8963 move |_event, window, cx| {
8964 editor.update(cx, |editor, cx| {
8965 let snapshot = editor.snapshot(window, cx);
8966 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8967 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8968 editor.expand_selected_diff_hunks(cx);
8969 });
8970 }
8971 }),
8972 )
8973 .child(
8974 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8975 .shape(IconButtonShape::Square)
8976 .icon_size(IconSize::Small)
8977 // .disabled(!has_multiple_hunks)
8978 .tooltip({
8979 let focus_handle = editor.focus_handle(cx);
8980 move |window, cx| {
8981 Tooltip::for_action_in(
8982 "Previous Hunk",
8983 &GoToPrevHunk,
8984 &focus_handle,
8985 window,
8986 cx,
8987 )
8988 }
8989 })
8990 .on_click({
8991 let editor = editor.clone();
8992 move |_event, window, cx| {
8993 editor.update(cx, |editor, cx| {
8994 let snapshot = editor.snapshot(window, cx);
8995 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8996 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8997 editor.expand_selected_diff_hunks(cx);
8998 });
8999 }
9000 }),
9001 )
9002 .child(
9003 IconButton::new("discard", IconName::Undo)
9004 .shape(IconButtonShape::Square)
9005 .icon_size(IconSize::Small)
9006 .tooltip({
9007 let focus_handle = editor.focus_handle(cx);
9008 move |window, cx| {
9009 Tooltip::for_action_in(
9010 "Discard Hunk",
9011 &RevertSelectedHunks,
9012 &focus_handle,
9013 window,
9014 cx,
9015 )
9016 }
9017 })
9018 .on_click({
9019 let editor = editor.clone();
9020 move |_event, window, cx| {
9021 editor.update(cx, |editor, cx| {
9022 let snapshot = editor.snapshot(window, cx);
9023 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9024 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
9025 });
9026 }
9027 }),
9028 )
9029 .into_any_element()
9030}